1/****************************************************************************** 2 3 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved. 4 5 802.11 status code portion of this file from ethereal-0.10.6: 6 Copyright 2000, Axis Communications AB 7 Ethereal - Network traffic analyzer 8 By Gerald Combs <gerald@ethereal.com> 9 Copyright 1998 Gerald Combs 10 11 This program is free software; you can redistribute it and/or modify it 12 under the terms of version 2 of the GNU General Public License as 13 published by the Free Software Foundation. 14 15 This program is distributed in the hope that it will be useful, but WITHOUT 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 18 more details. 19 20 You should have received a copy of the GNU General Public License along with 21 this program; if not, write to the Free Software Foundation, Inc., 59 22 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 23 24 The full GNU General Public License is included in this distribution in the 25 file called LICENSE. 26 27 Contact Information: 28 Intel Linux Wireless <ilw@linux.intel.com> 29 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 30 31******************************************************************************/ 32 33#include <linux/sched.h> 34#include <linux/slab.h> 35#include <net/cfg80211-wext.h> 36#include "ipw2200.h" 37#include "ipw.h" 38 39 40#ifndef KBUILD_EXTMOD 41#define VK "k" 42#else 43#define VK 44#endif 45 46#ifdef CONFIG_IPW2200_DEBUG 47#define VD "d" 48#else 49#define VD 50#endif 51 52#ifdef CONFIG_IPW2200_MONITOR 53#define VM "m" 54#else 55#define VM 56#endif 57 58#ifdef CONFIG_IPW2200_PROMISCUOUS 59#define VP "p" 60#else 61#define VP 62#endif 63 64#ifdef CONFIG_IPW2200_RADIOTAP 65#define VR "r" 66#else 67#define VR 68#endif 69 70#ifdef CONFIG_IPW2200_QOS 71#define VQ "q" 72#else 73#define VQ 74#endif 75 76#define IPW2200_VERSION "1.2.2" VK VD VM VP VR VQ 77#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver" 78#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" 79#define DRV_VERSION IPW2200_VERSION 80 81#define ETH_P_80211_STATS (ETH_P_80211_RAW + 1) 82 83MODULE_DESCRIPTION(DRV_DESCRIPTION); 84MODULE_VERSION(DRV_VERSION); 85MODULE_AUTHOR(DRV_COPYRIGHT); 86MODULE_LICENSE("GPL"); 87MODULE_FIRMWARE("ipw2200-ibss.fw"); 88#ifdef CONFIG_IPW2200_MONITOR 89MODULE_FIRMWARE("ipw2200-sniffer.fw"); 90#endif 91MODULE_FIRMWARE("ipw2200-bss.fw"); 92 93static int cmdlog = 0; 94static int debug = 0; 95static int default_channel = 0; 96static int network_mode = 0; 97 98static u32 ipw_debug_level; 99static int associate; 100static int auto_create = 1; 101static int led_support = 1; 102static int disable = 0; 103static int bt_coexist = 0; 104static int hwcrypto = 0; 105static int roaming = 1; 106static const char ipw_modes[] = { 107 'a', 'b', 'g', '?' 108}; 109static int antenna = CFG_SYS_ANTENNA_BOTH; 110 111#ifdef CONFIG_IPW2200_PROMISCUOUS 112static int rtap_iface = 0; /* def: 0 -- do not create rtap interface */ 113#endif 114 115static struct ieee80211_rate ipw2200_rates[] = { 116 { .bitrate = 10 }, 117 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, 118 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, 119 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, 120 { .bitrate = 60 }, 121 { .bitrate = 90 }, 122 { .bitrate = 120 }, 123 { .bitrate = 180 }, 124 { .bitrate = 240 }, 125 { .bitrate = 360 }, 126 { .bitrate = 480 }, 127 { .bitrate = 540 } 128}; 129 130#define ipw2200_a_rates (ipw2200_rates + 4) 131#define ipw2200_num_a_rates 8 132#define ipw2200_bg_rates (ipw2200_rates + 0) 133#define ipw2200_num_bg_rates 12 134 135/* Ugly macro to convert literal channel numbers into their mhz equivalents 136 * There are certianly some conditions that will break this (like feeding it '30') 137 * but they shouldn't arise since nothing talks on channel 30. */ 138#define ieee80211chan2mhz(x) \ 139 (((x) <= 14) ? \ 140 (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \ 141 ((x) + 1000) * 5) 142 143#ifdef CONFIG_IPW2200_QOS 144static int qos_enable = 0; 145static int qos_burst_enable = 0; 146static int qos_no_ack_mask = 0; 147static int burst_duration_CCK = 0; 148static int burst_duration_OFDM = 0; 149 150static struct libipw_qos_parameters def_qos_parameters_OFDM = { 151 {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM, 152 QOS_TX3_CW_MIN_OFDM}, 153 {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM, 154 QOS_TX3_CW_MAX_OFDM}, 155 {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, 156 {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, 157 {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM, 158 QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM} 159}; 160 161static struct libipw_qos_parameters def_qos_parameters_CCK = { 162 {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK, 163 QOS_TX3_CW_MIN_CCK}, 164 {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK, 165 QOS_TX3_CW_MAX_CCK}, 166 {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, 167 {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, 168 {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK, 169 QOS_TX3_TXOP_LIMIT_CCK} 170}; 171 172static struct libipw_qos_parameters def_parameters_OFDM = { 173 {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM, 174 DEF_TX3_CW_MIN_OFDM}, 175 {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM, 176 DEF_TX3_CW_MAX_OFDM}, 177 {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, 178 {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, 179 {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM, 180 DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM} 181}; 182 183static struct libipw_qos_parameters def_parameters_CCK = { 184 {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK, 185 DEF_TX3_CW_MIN_CCK}, 186 {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK, 187 DEF_TX3_CW_MAX_CCK}, 188 {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, 189 {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, 190 {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK, 191 DEF_TX3_TXOP_LIMIT_CCK} 192}; 193 194static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 }; 195 196static int from_priority_to_tx_queue[] = { 197 IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1, 198 IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4 199}; 200 201static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv); 202 203static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters 204 *qos_param); 205static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element 206 *qos_param); 207#endif /* CONFIG_IPW2200_QOS */ 208 209static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev); 210static void ipw_remove_current_network(struct ipw_priv *priv); 211static void ipw_rx(struct ipw_priv *priv); 212static int ipw_queue_tx_reclaim(struct ipw_priv *priv, 213 struct clx2_tx_queue *txq, int qindex); 214static int ipw_queue_reset(struct ipw_priv *priv); 215 216static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf, 217 int len, int sync); 218 219static void ipw_tx_queue_free(struct ipw_priv *); 220 221static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *); 222static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *); 223static void ipw_rx_queue_replenish(void *); 224static int ipw_up(struct ipw_priv *); 225static void ipw_bg_up(struct work_struct *work); 226static void ipw_down(struct ipw_priv *); 227static void ipw_bg_down(struct work_struct *work); 228static int ipw_config(struct ipw_priv *); 229static int init_supported_rates(struct ipw_priv *priv, 230 struct ipw_supported_rates *prates); 231static void ipw_set_hwcrypto_keys(struct ipw_priv *); 232static void ipw_send_wep_keys(struct ipw_priv *, int); 233 234static int snprint_line(char *buf, size_t count, 235 const u8 * data, u32 len, u32 ofs) 236{ 237 int out, i, j, l; 238 char c; 239 240 out = snprintf(buf, count, "%08X", ofs); 241 242 for (l = 0, i = 0; i < 2; i++) { 243 out += snprintf(buf + out, count - out, " "); 244 for (j = 0; j < 8 && l < len; j++, l++) 245 out += snprintf(buf + out, count - out, "%02X ", 246 data[(i * 8 + j)]); 247 for (; j < 8; j++) 248 out += snprintf(buf + out, count - out, " "); 249 } 250 251 out += snprintf(buf + out, count - out, " "); 252 for (l = 0, i = 0; i < 2; i++) { 253 out += snprintf(buf + out, count - out, " "); 254 for (j = 0; j < 8 && l < len; j++, l++) { 255 c = data[(i * 8 + j)]; 256 if (!isascii(c) || !isprint(c)) 257 c = '.'; 258 259 out += snprintf(buf + out, count - out, "%c", c); 260 } 261 262 for (; j < 8; j++) 263 out += snprintf(buf + out, count - out, " "); 264 } 265 266 return out; 267} 268 269static void printk_buf(int level, const u8 * data, u32 len) 270{ 271 char line[81]; 272 u32 ofs = 0; 273 if (!(ipw_debug_level & level)) 274 return; 275 276 while (len) { 277 snprint_line(line, sizeof(line), &data[ofs], 278 min(len, 16U), ofs); 279 printk(KERN_DEBUG "%s\n", line); 280 ofs += 16; 281 len -= min(len, 16U); 282 } 283} 284 285static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len) 286{ 287 size_t out = size; 288 u32 ofs = 0; 289 int total = 0; 290 291 while (size && len) { 292 out = snprint_line(output, size, &data[ofs], 293 min_t(size_t, len, 16U), ofs); 294 295 ofs += 16; 296 output += out; 297 size -= out; 298 len -= min_t(size_t, len, 16U); 299 total += out; 300 } 301 return total; 302} 303 304/* alias for 32-bit indirect read (for SRAM/reg above 4K), with debug wrapper */ 305static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg); 306#define ipw_read_reg32(a, b) _ipw_read_reg32(a, b) 307 308/* alias for 8-bit indirect read (for SRAM/reg above 4K), with debug wrapper */ 309static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg); 310#define ipw_read_reg8(a, b) _ipw_read_reg8(a, b) 311 312/* 8-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ 313static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value); 314static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c) 315{ 316 IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__, 317 __LINE__, (u32) (b), (u32) (c)); 318 _ipw_write_reg8(a, b, c); 319} 320 321/* 16-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ 322static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value); 323static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c) 324{ 325 IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__, 326 __LINE__, (u32) (b), (u32) (c)); 327 _ipw_write_reg16(a, b, c); 328} 329 330/* 32-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ 331static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value); 332static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c) 333{ 334 IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__, 335 __LINE__, (u32) (b), (u32) (c)); 336 _ipw_write_reg32(a, b, c); 337} 338 339/* 8-bit direct write (low 4K) */ 340static inline void _ipw_write8(struct ipw_priv *ipw, unsigned long ofs, 341 u8 val) 342{ 343 writeb(val, ipw->hw_base + ofs); 344} 345 346/* 8-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ 347#define ipw_write8(ipw, ofs, val) do { \ 348 IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, \ 349 __LINE__, (u32)(ofs), (u32)(val)); \ 350 _ipw_write8(ipw, ofs, val); \ 351} while (0) 352 353/* 16-bit direct write (low 4K) */ 354static inline void _ipw_write16(struct ipw_priv *ipw, unsigned long ofs, 355 u16 val) 356{ 357 writew(val, ipw->hw_base + ofs); 358} 359 360/* 16-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ 361#define ipw_write16(ipw, ofs, val) do { \ 362 IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, \ 363 __LINE__, (u32)(ofs), (u32)(val)); \ 364 _ipw_write16(ipw, ofs, val); \ 365} while (0) 366 367/* 32-bit direct write (low 4K) */ 368static inline void _ipw_write32(struct ipw_priv *ipw, unsigned long ofs, 369 u32 val) 370{ 371 writel(val, ipw->hw_base + ofs); 372} 373 374/* 32-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ 375#define ipw_write32(ipw, ofs, val) do { \ 376 IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, \ 377 __LINE__, (u32)(ofs), (u32)(val)); \ 378 _ipw_write32(ipw, ofs, val); \ 379} while (0) 380 381/* 8-bit direct read (low 4K) */ 382static inline u8 _ipw_read8(struct ipw_priv *ipw, unsigned long ofs) 383{ 384 return readb(ipw->hw_base + ofs); 385} 386 387/* alias to 8-bit direct read (low 4K of SRAM/regs), with debug wrapper */ 388#define ipw_read8(ipw, ofs) ({ \ 389 IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", __FILE__, __LINE__, \ 390 (u32)(ofs)); \ 391 _ipw_read8(ipw, ofs); \ 392}) 393 394/* 16-bit direct read (low 4K) */ 395static inline u16 _ipw_read16(struct ipw_priv *ipw, unsigned long ofs) 396{ 397 return readw(ipw->hw_base + ofs); 398} 399 400/* alias to 16-bit direct read (low 4K of SRAM/regs), with debug wrapper */ 401#define ipw_read16(ipw, ofs) ({ \ 402 IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", __FILE__, __LINE__, \ 403 (u32)(ofs)); \ 404 _ipw_read16(ipw, ofs); \ 405}) 406 407/* 32-bit direct read (low 4K) */ 408static inline u32 _ipw_read32(struct ipw_priv *ipw, unsigned long ofs) 409{ 410 return readl(ipw->hw_base + ofs); 411} 412 413/* alias to 32-bit direct read (low 4K of SRAM/regs), with debug wrapper */ 414#define ipw_read32(ipw, ofs) ({ \ 415 IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \ 416 (u32)(ofs)); \ 417 _ipw_read32(ipw, ofs); \ 418}) 419 420static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int); 421/* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */ 422#define ipw_read_indirect(a, b, c, d) ({ \ 423 IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %u bytes\n", __FILE__, \ 424 __LINE__, (u32)(b), (u32)(d)); \ 425 _ipw_read_indirect(a, b, c, d); \ 426}) 427 428/* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */ 429static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data, 430 int num); 431#define ipw_write_indirect(a, b, c, d) do { \ 432 IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %u bytes\n", __FILE__, \ 433 __LINE__, (u32)(b), (u32)(d)); \ 434 _ipw_write_indirect(a, b, c, d); \ 435} while (0) 436 437/* 32-bit indirect write (above 4K) */ 438static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value) 439{ 440 IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value); 441 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); 442 _ipw_write32(priv, IPW_INDIRECT_DATA, value); 443} 444 445/* 8-bit indirect write (above 4K) */ 446static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value) 447{ 448 u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */ 449 u32 dif_len = reg - aligned_addr; 450 451 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); 452 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); 453 _ipw_write8(priv, IPW_INDIRECT_DATA + dif_len, value); 454} 455 456/* 16-bit indirect write (above 4K) */ 457static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value) 458{ 459 u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */ 460 u32 dif_len = (reg - aligned_addr) & (~0x1ul); 461 462 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); 463 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); 464 _ipw_write16(priv, IPW_INDIRECT_DATA + dif_len, value); 465} 466 467/* 8-bit indirect read (above 4K) */ 468static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg) 469{ 470 u32 word; 471 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK); 472 IPW_DEBUG_IO(" reg = 0x%8X :\n", reg); 473 word = _ipw_read32(priv, IPW_INDIRECT_DATA); 474 return (word >> ((reg & 0x3) * 8)) & 0xff; 475} 476 477/* 32-bit indirect read (above 4K) */ 478static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg) 479{ 480 u32 value; 481 482 IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg); 483 484 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); 485 value = _ipw_read32(priv, IPW_INDIRECT_DATA); 486 IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x\n", reg, value); 487 return value; 488} 489 490/* General purpose, no alignment requirement, iterative (multi-byte) read, */ 491/* for area above 1st 4K of SRAM/reg space */ 492static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, 493 int num) 494{ 495 u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */ 496 u32 dif_len = addr - aligned_addr; 497 u32 i; 498 499 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); 500 501 if (num <= 0) { 502 return; 503 } 504 505 /* Read the first dword (or portion) byte by byte */ 506 if (unlikely(dif_len)) { 507 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); 508 /* Start reading at aligned_addr + dif_len */ 509 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--) 510 *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i); 511 aligned_addr += 4; 512 } 513 514 /* Read all of the middle dwords as dwords, with auto-increment */ 515 _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); 516 for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4) 517 *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA); 518 519 /* Read the last dword (or portion) byte by byte */ 520 if (unlikely(num)) { 521 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); 522 for (i = 0; num > 0; i++, num--) 523 *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i); 524 } 525} 526 527/* General purpose, no alignment requirement, iterative (multi-byte) write, */ 528/* for area above 1st 4K of SRAM/reg space */ 529static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, 530 int num) 531{ 532 u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */ 533 u32 dif_len = addr - aligned_addr; 534 u32 i; 535 536 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); 537 538 if (num <= 0) { 539 return; 540 } 541 542 /* Write the first dword (or portion) byte by byte */ 543 if (unlikely(dif_len)) { 544 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); 545 /* Start writing at aligned_addr + dif_len */ 546 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++) 547 _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); 548 aligned_addr += 4; 549 } 550 551 /* Write all of the middle dwords as dwords, with auto-increment */ 552 _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); 553 for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4) 554 _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf); 555 556 /* Write the last dword (or portion) byte by byte */ 557 if (unlikely(num)) { 558 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); 559 for (i = 0; num > 0; i++, num--, buf++) 560 _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); 561 } 562} 563 564/* General purpose, no alignment requirement, iterative (multi-byte) write, */ 565/* for 1st 4K of SRAM/regs space */ 566static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf, 567 int num) 568{ 569 memcpy_toio((priv->hw_base + addr), buf, num); 570} 571 572/* Set bit(s) in low 4K of SRAM/regs */ 573static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask) 574{ 575 ipw_write32(priv, reg, ipw_read32(priv, reg) | mask); 576} 577 578/* Clear bit(s) in low 4K of SRAM/regs */ 579static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask) 580{ 581 ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask); 582} 583 584static inline void __ipw_enable_interrupts(struct ipw_priv *priv) 585{ 586 if (priv->status & STATUS_INT_ENABLED) 587 return; 588 priv->status |= STATUS_INT_ENABLED; 589 ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL); 590} 591 592static inline void __ipw_disable_interrupts(struct ipw_priv *priv) 593{ 594 if (!(priv->status & STATUS_INT_ENABLED)) 595 return; 596 priv->status &= ~STATUS_INT_ENABLED; 597 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); 598} 599 600static inline void ipw_enable_interrupts(struct ipw_priv *priv) 601{ 602 unsigned long flags; 603 604 spin_lock_irqsave(&priv->irq_lock, flags); 605 __ipw_enable_interrupts(priv); 606 spin_unlock_irqrestore(&priv->irq_lock, flags); 607} 608 609static inline void ipw_disable_interrupts(struct ipw_priv *priv) 610{ 611 unsigned long flags; 612 613 spin_lock_irqsave(&priv->irq_lock, flags); 614 __ipw_disable_interrupts(priv); 615 spin_unlock_irqrestore(&priv->irq_lock, flags); 616} 617 618static char *ipw_error_desc(u32 val) 619{ 620 switch (val) { 621 case IPW_FW_ERROR_OK: 622 return "ERROR_OK"; 623 case IPW_FW_ERROR_FAIL: 624 return "ERROR_FAIL"; 625 case IPW_FW_ERROR_MEMORY_UNDERFLOW: 626 return "MEMORY_UNDERFLOW"; 627 case IPW_FW_ERROR_MEMORY_OVERFLOW: 628 return "MEMORY_OVERFLOW"; 629 case IPW_FW_ERROR_BAD_PARAM: 630 return "BAD_PARAM"; 631 case IPW_FW_ERROR_BAD_CHECKSUM: 632 return "BAD_CHECKSUM"; 633 case IPW_FW_ERROR_NMI_INTERRUPT: 634 return "NMI_INTERRUPT"; 635 case IPW_FW_ERROR_BAD_DATABASE: 636 return "BAD_DATABASE"; 637 case IPW_FW_ERROR_ALLOC_FAIL: 638 return "ALLOC_FAIL"; 639 case IPW_FW_ERROR_DMA_UNDERRUN: 640 return "DMA_UNDERRUN"; 641 case IPW_FW_ERROR_DMA_STATUS: 642 return "DMA_STATUS"; 643 case IPW_FW_ERROR_DINO_ERROR: 644 return "DINO_ERROR"; 645 case IPW_FW_ERROR_EEPROM_ERROR: 646 return "EEPROM_ERROR"; 647 case IPW_FW_ERROR_SYSASSERT: 648 return "SYSASSERT"; 649 case IPW_FW_ERROR_FATAL_ERROR: 650 return "FATAL_ERROR"; 651 default: 652 return "UNKNOWN_ERROR"; 653 } 654} 655 656static void ipw_dump_error_log(struct ipw_priv *priv, 657 struct ipw_fw_error *error) 658{ 659 u32 i; 660 661 if (!error) { 662 IPW_ERROR("Error allocating and capturing error log. " 663 "Nothing to dump.\n"); 664 return; 665 } 666 667 IPW_ERROR("Start IPW Error Log Dump:\n"); 668 IPW_ERROR("Status: 0x%08X, Config: %08X\n", 669 error->status, error->config); 670 671 for (i = 0; i < error->elem_len; i++) 672 IPW_ERROR("%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 673 ipw_error_desc(error->elem[i].desc), 674 error->elem[i].time, 675 error->elem[i].blink1, 676 error->elem[i].blink2, 677 error->elem[i].link1, 678 error->elem[i].link2, error->elem[i].data); 679 for (i = 0; i < error->log_len; i++) 680 IPW_ERROR("%i\t0x%08x\t%i\n", 681 error->log[i].time, 682 error->log[i].data, error->log[i].event); 683} 684 685static inline int ipw_is_init(struct ipw_priv *priv) 686{ 687 return (priv->status & STATUS_INIT) ? 1 : 0; 688} 689 690static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len) 691{ 692 u32 addr, field_info, field_len, field_count, total_len; 693 694 IPW_DEBUG_ORD("ordinal = %i\n", ord); 695 696 if (!priv || !val || !len) { 697 IPW_DEBUG_ORD("Invalid argument\n"); 698 return -EINVAL; 699 } 700 701 /* verify device ordinal tables have been initialized */ 702 if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) { 703 IPW_DEBUG_ORD("Access ordinals before initialization\n"); 704 return -EINVAL; 705 } 706 707 switch (IPW_ORD_TABLE_ID_MASK & ord) { 708 case IPW_ORD_TABLE_0_MASK: 709 /* 710 * TABLE 0: Direct access to a table of 32 bit values 711 * 712 * This is a very simple table with the data directly 713 * read from the table 714 */ 715 716 /* remove the table id from the ordinal */ 717 ord &= IPW_ORD_TABLE_VALUE_MASK; 718 719 /* boundary check */ 720 if (ord > priv->table0_len) { 721 IPW_DEBUG_ORD("ordinal value (%i) longer then " 722 "max (%i)\n", ord, priv->table0_len); 723 return -EINVAL; 724 } 725 726 /* verify we have enough room to store the value */ 727 if (*len < sizeof(u32)) { 728 IPW_DEBUG_ORD("ordinal buffer length too small, " 729 "need %zd\n", sizeof(u32)); 730 return -EINVAL; 731 } 732 733 IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n", 734 ord, priv->table0_addr + (ord << 2)); 735 736 *len = sizeof(u32); 737 ord <<= 2; 738 *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord); 739 break; 740 741 case IPW_ORD_TABLE_1_MASK: 742 /* 743 * TABLE 1: Indirect access to a table of 32 bit values 744 * 745 * This is a fairly large table of u32 values each 746 * representing starting addr for the data (which is 747 * also a u32) 748 */ 749 750 /* remove the table id from the ordinal */ 751 ord &= IPW_ORD_TABLE_VALUE_MASK; 752 753 /* boundary check */ 754 if (ord > priv->table1_len) { 755 IPW_DEBUG_ORD("ordinal value too long\n"); 756 return -EINVAL; 757 } 758 759 /* verify we have enough room to store the value */ 760 if (*len < sizeof(u32)) { 761 IPW_DEBUG_ORD("ordinal buffer length too small, " 762 "need %zd\n", sizeof(u32)); 763 return -EINVAL; 764 } 765 766 *((u32 *) val) = 767 ipw_read_reg32(priv, (priv->table1_addr + (ord << 2))); 768 *len = sizeof(u32); 769 break; 770 771 case IPW_ORD_TABLE_2_MASK: 772 /* 773 * TABLE 2: Indirect access to a table of variable sized values 774 * 775 * This table consist of six values, each containing 776 * - dword containing the starting offset of the data 777 * - dword containing the lengh in the first 16bits 778 * and the count in the second 16bits 779 */ 780 781 /* remove the table id from the ordinal */ 782 ord &= IPW_ORD_TABLE_VALUE_MASK; 783 784 /* boundary check */ 785 if (ord > priv->table2_len) { 786 IPW_DEBUG_ORD("ordinal value too long\n"); 787 return -EINVAL; 788 } 789 790 /* get the address of statistic */ 791 addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3)); 792 793 /* get the second DW of statistics ; 794 * two 16-bit words - first is length, second is count */ 795 field_info = 796 ipw_read_reg32(priv, 797 priv->table2_addr + (ord << 3) + 798 sizeof(u32)); 799 800 /* get each entry length */ 801 field_len = *((u16 *) & field_info); 802 803 /* get number of entries */ 804 field_count = *(((u16 *) & field_info) + 1); 805 806 /* abort if not enough memory */ 807 total_len = field_len * field_count; 808 if (total_len > *len) { 809 *len = total_len; 810 return -EINVAL; 811 } 812 813 *len = total_len; 814 if (!total_len) 815 return 0; 816 817 IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, " 818 "field_info = 0x%08x\n", 819 addr, total_len, field_info); 820 ipw_read_indirect(priv, addr, val, total_len); 821 break; 822 823 default: 824 IPW_DEBUG_ORD("Invalid ordinal!\n"); 825 return -EINVAL; 826 827 } 828 829 return 0; 830} 831 832static void ipw_init_ordinals(struct ipw_priv *priv) 833{ 834 priv->table0_addr = IPW_ORDINALS_TABLE_LOWER; 835 priv->table0_len = ipw_read32(priv, priv->table0_addr); 836 837 IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n", 838 priv->table0_addr, priv->table0_len); 839 840 priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1); 841 priv->table1_len = ipw_read_reg32(priv, priv->table1_addr); 842 843 IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n", 844 priv->table1_addr, priv->table1_len); 845 846 priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2); 847 priv->table2_len = ipw_read_reg32(priv, priv->table2_addr); 848 priv->table2_len &= 0x0000ffff; /* use first two bytes */ 849 850 IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n", 851 priv->table2_addr, priv->table2_len); 852 853} 854 855static u32 ipw_register_toggle(u32 reg) 856{ 857 reg &= ~IPW_START_STANDBY; 858 if (reg & IPW_GATE_ODMA) 859 reg &= ~IPW_GATE_ODMA; 860 if (reg & IPW_GATE_IDMA) 861 reg &= ~IPW_GATE_IDMA; 862 if (reg & IPW_GATE_ADMA) 863 reg &= ~IPW_GATE_ADMA; 864 return reg; 865} 866 867/* 868 * LED behavior: 869 * - On radio ON, turn on any LEDs that require to be on during start 870 * - On initialization, start unassociated blink 871 * - On association, disable unassociated blink 872 * - On disassociation, start unassociated blink 873 * - On radio OFF, turn off any LEDs started during radio on 874 * 875 */ 876#define LD_TIME_LINK_ON msecs_to_jiffies(300) 877#define LD_TIME_LINK_OFF msecs_to_jiffies(2700) 878#define LD_TIME_ACT_ON msecs_to_jiffies(250) 879 880static void ipw_led_link_on(struct ipw_priv *priv) 881{ 882 unsigned long flags; 883 u32 led; 884 885 /* If configured to not use LEDs, or nic_type is 1, 886 * then we don't toggle a LINK led */ 887 if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1) 888 return; 889 890 spin_lock_irqsave(&priv->lock, flags); 891 892 if (!(priv->status & STATUS_RF_KILL_MASK) && 893 !(priv->status & STATUS_LED_LINK_ON)) { 894 IPW_DEBUG_LED("Link LED On\n"); 895 led = ipw_read_reg32(priv, IPW_EVENT_REG); 896 led |= priv->led_association_on; 897 898 led = ipw_register_toggle(led); 899 900 IPW_DEBUG_LED("Reg: 0x%08X\n", led); 901 ipw_write_reg32(priv, IPW_EVENT_REG, led); 902 903 priv->status |= STATUS_LED_LINK_ON; 904 905 /* If we aren't associated, schedule turning the LED off */ 906 if (!(priv->status & STATUS_ASSOCIATED)) 907 schedule_delayed_work(&priv->led_link_off, 908 LD_TIME_LINK_ON); 909 } 910 911 spin_unlock_irqrestore(&priv->lock, flags); 912} 913 914static void ipw_bg_led_link_on(struct work_struct *work) 915{ 916 struct ipw_priv *priv = 917 container_of(work, struct ipw_priv, led_link_on.work); 918 mutex_lock(&priv->mutex); 919 ipw_led_link_on(priv); 920 mutex_unlock(&priv->mutex); 921} 922 923static void ipw_led_link_off(struct ipw_priv *priv) 924{ 925 unsigned long flags; 926 u32 led; 927 928 /* If configured not to use LEDs, or nic type is 1, 929 * then we don't goggle the LINK led. */ 930 if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1) 931 return; 932 933 spin_lock_irqsave(&priv->lock, flags); 934 935 if (priv->status & STATUS_LED_LINK_ON) { 936 led = ipw_read_reg32(priv, IPW_EVENT_REG); 937 led &= priv->led_association_off; 938 led = ipw_register_toggle(led); 939 940 IPW_DEBUG_LED("Reg: 0x%08X\n", led); 941 ipw_write_reg32(priv, IPW_EVENT_REG, led); 942 943 IPW_DEBUG_LED("Link LED Off\n"); 944 945 priv->status &= ~STATUS_LED_LINK_ON; 946 947 /* If we aren't associated and the radio is on, schedule 948 * turning the LED on (blink while unassociated) */ 949 if (!(priv->status & STATUS_RF_KILL_MASK) && 950 !(priv->status & STATUS_ASSOCIATED)) 951 schedule_delayed_work(&priv->led_link_on, 952 LD_TIME_LINK_OFF); 953 954 } 955 956 spin_unlock_irqrestore(&priv->lock, flags); 957} 958 959static void ipw_bg_led_link_off(struct work_struct *work) 960{ 961 struct ipw_priv *priv = 962 container_of(work, struct ipw_priv, led_link_off.work); 963 mutex_lock(&priv->mutex); 964 ipw_led_link_off(priv); 965 mutex_unlock(&priv->mutex); 966} 967 968static void __ipw_led_activity_on(struct ipw_priv *priv) 969{ 970 u32 led; 971 972 if (priv->config & CFG_NO_LED) 973 return; 974 975 if (priv->status & STATUS_RF_KILL_MASK) 976 return; 977 978 if (!(priv->status & STATUS_LED_ACT_ON)) { 979 led = ipw_read_reg32(priv, IPW_EVENT_REG); 980 led |= priv->led_activity_on; 981 982 led = ipw_register_toggle(led); 983 984 IPW_DEBUG_LED("Reg: 0x%08X\n", led); 985 ipw_write_reg32(priv, IPW_EVENT_REG, led); 986 987 IPW_DEBUG_LED("Activity LED On\n"); 988 989 priv->status |= STATUS_LED_ACT_ON; 990 991 cancel_delayed_work(&priv->led_act_off); 992 schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON); 993 } else { 994 /* Reschedule LED off for full time period */ 995 cancel_delayed_work(&priv->led_act_off); 996 schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON); 997 } 998} 999 1000#if 0 1001void ipw_led_activity_on(struct ipw_priv *priv) 1002{ 1003 unsigned long flags; 1004 spin_lock_irqsave(&priv->lock, flags); 1005 __ipw_led_activity_on(priv); 1006 spin_unlock_irqrestore(&priv->lock, flags); 1007} 1008#endif /* 0 */ 1009 1010static void ipw_led_activity_off(struct ipw_priv *priv) 1011{ 1012 unsigned long flags; 1013 u32 led; 1014 1015 if (priv->config & CFG_NO_LED) 1016 return; 1017 1018 spin_lock_irqsave(&priv->lock, flags); 1019 1020 if (priv->status & STATUS_LED_ACT_ON) { 1021 led = ipw_read_reg32(priv, IPW_EVENT_REG); 1022 led &= priv->led_activity_off; 1023 1024 led = ipw_register_toggle(led); 1025 1026 IPW_DEBUG_LED("Reg: 0x%08X\n", led); 1027 ipw_write_reg32(priv, IPW_EVENT_REG, led); 1028 1029 IPW_DEBUG_LED("Activity LED Off\n"); 1030 1031 priv->status &= ~STATUS_LED_ACT_ON; 1032 } 1033 1034 spin_unlock_irqrestore(&priv->lock, flags); 1035} 1036 1037static void ipw_bg_led_activity_off(struct work_struct *work) 1038{ 1039 struct ipw_priv *priv = 1040 container_of(work, struct ipw_priv, led_act_off.work); 1041 mutex_lock(&priv->mutex); 1042 ipw_led_activity_off(priv); 1043 mutex_unlock(&priv->mutex); 1044} 1045 1046static void ipw_led_band_on(struct ipw_priv *priv) 1047{ 1048 unsigned long flags; 1049 u32 led; 1050 1051 /* Only nic type 1 supports mode LEDs */ 1052 if (priv->config & CFG_NO_LED || 1053 priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network) 1054 return; 1055 1056 spin_lock_irqsave(&priv->lock, flags); 1057 1058 led = ipw_read_reg32(priv, IPW_EVENT_REG); 1059 if (priv->assoc_network->mode == IEEE_A) { 1060 led |= priv->led_ofdm_on; 1061 led &= priv->led_association_off; 1062 IPW_DEBUG_LED("Mode LED On: 802.11a\n"); 1063 } else if (priv->assoc_network->mode == IEEE_G) { 1064 led |= priv->led_ofdm_on; 1065 led |= priv->led_association_on; 1066 IPW_DEBUG_LED("Mode LED On: 802.11g\n"); 1067 } else { 1068 led &= priv->led_ofdm_off; 1069 led |= priv->led_association_on; 1070 IPW_DEBUG_LED("Mode LED On: 802.11b\n"); 1071 } 1072 1073 led = ipw_register_toggle(led); 1074 1075 IPW_DEBUG_LED("Reg: 0x%08X\n", led); 1076 ipw_write_reg32(priv, IPW_EVENT_REG, led); 1077 1078 spin_unlock_irqrestore(&priv->lock, flags); 1079} 1080 1081static void ipw_led_band_off(struct ipw_priv *priv) 1082{ 1083 unsigned long flags; 1084 u32 led; 1085 1086 /* Only nic type 1 supports mode LEDs */ 1087 if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1) 1088 return; 1089 1090 spin_lock_irqsave(&priv->lock, flags); 1091 1092 led = ipw_read_reg32(priv, IPW_EVENT_REG); 1093 led &= priv->led_ofdm_off; 1094 led &= priv->led_association_off; 1095 1096 led = ipw_register_toggle(led); 1097 1098 IPW_DEBUG_LED("Reg: 0x%08X\n", led); 1099 ipw_write_reg32(priv, IPW_EVENT_REG, led); 1100 1101 spin_unlock_irqrestore(&priv->lock, flags); 1102} 1103 1104static void ipw_led_radio_on(struct ipw_priv *priv) 1105{ 1106 ipw_led_link_on(priv); 1107} 1108 1109static void ipw_led_radio_off(struct ipw_priv *priv) 1110{ 1111 ipw_led_activity_off(priv); 1112 ipw_led_link_off(priv); 1113} 1114 1115static void ipw_led_link_up(struct ipw_priv *priv) 1116{ 1117 /* Set the Link Led on for all nic types */ 1118 ipw_led_link_on(priv); 1119} 1120 1121static void ipw_led_link_down(struct ipw_priv *priv) 1122{ 1123 ipw_led_activity_off(priv); 1124 ipw_led_link_off(priv); 1125 1126 if (priv->status & STATUS_RF_KILL_MASK) 1127 ipw_led_radio_off(priv); 1128} 1129 1130static void ipw_led_init(struct ipw_priv *priv) 1131{ 1132 priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE]; 1133 1134 /* Set the default PINs for the link and activity leds */ 1135 priv->led_activity_on = IPW_ACTIVITY_LED; 1136 priv->led_activity_off = ~(IPW_ACTIVITY_LED); 1137 1138 priv->led_association_on = IPW_ASSOCIATED_LED; 1139 priv->led_association_off = ~(IPW_ASSOCIATED_LED); 1140 1141 /* Set the default PINs for the OFDM leds */ 1142 priv->led_ofdm_on = IPW_OFDM_LED; 1143 priv->led_ofdm_off = ~(IPW_OFDM_LED); 1144 1145 switch (priv->nic_type) { 1146 case EEPROM_NIC_TYPE_1: 1147 /* In this NIC type, the LEDs are reversed.... */ 1148 priv->led_activity_on = IPW_ASSOCIATED_LED; 1149 priv->led_activity_off = ~(IPW_ASSOCIATED_LED); 1150 priv->led_association_on = IPW_ACTIVITY_LED; 1151 priv->led_association_off = ~(IPW_ACTIVITY_LED); 1152 1153 if (!(priv->config & CFG_NO_LED)) 1154 ipw_led_band_on(priv); 1155 1156 /* And we don't blink link LEDs for this nic, so 1157 * just return here */ 1158 return; 1159 1160 case EEPROM_NIC_TYPE_3: 1161 case EEPROM_NIC_TYPE_2: 1162 case EEPROM_NIC_TYPE_4: 1163 case EEPROM_NIC_TYPE_0: 1164 break; 1165 1166 default: 1167 IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n", 1168 priv->nic_type); 1169 priv->nic_type = EEPROM_NIC_TYPE_0; 1170 break; 1171 } 1172 1173 if (!(priv->config & CFG_NO_LED)) { 1174 if (priv->status & STATUS_ASSOCIATED) 1175 ipw_led_link_on(priv); 1176 else 1177 ipw_led_link_off(priv); 1178 } 1179} 1180 1181static void ipw_led_shutdown(struct ipw_priv *priv) 1182{ 1183 ipw_led_activity_off(priv); 1184 ipw_led_link_off(priv); 1185 ipw_led_band_off(priv); 1186 cancel_delayed_work(&priv->led_link_on); 1187 cancel_delayed_work(&priv->led_link_off); 1188 cancel_delayed_work(&priv->led_act_off); 1189} 1190 1191/* 1192 * The following adds a new attribute to the sysfs representation 1193 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/) 1194 * used for controlling the debug level. 1195 * 1196 * See the level definitions in ipw for details. 1197 */ 1198static ssize_t show_debug_level(struct device_driver *d, char *buf) 1199{ 1200 return sprintf(buf, "0x%08X\n", ipw_debug_level); 1201} 1202 1203static ssize_t store_debug_level(struct device_driver *d, const char *buf, 1204 size_t count) 1205{ 1206 char *p = (char *)buf; 1207 u32 val; 1208 1209 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 1210 p++; 1211 if (p[0] == 'x' || p[0] == 'X') 1212 p++; 1213 val = simple_strtoul(p, &p, 16); 1214 } else 1215 val = simple_strtoul(p, &p, 10); 1216 if (p == buf) 1217 printk(KERN_INFO DRV_NAME 1218 ": %s is not in hex or decimal form.\n", buf); 1219 else 1220 ipw_debug_level = val; 1221 1222 return strnlen(buf, count); 1223} 1224 1225static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, 1226 show_debug_level, store_debug_level); 1227 1228static inline u32 ipw_get_event_log_len(struct ipw_priv *priv) 1229{ 1230 /* length = 1st dword in log */ 1231 return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG)); 1232} 1233 1234static void ipw_capture_event_log(struct ipw_priv *priv, 1235 u32 log_len, struct ipw_event *log) 1236{ 1237 u32 base; 1238 1239 if (log_len) { 1240 base = ipw_read32(priv, IPW_EVENT_LOG); 1241 ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32), 1242 (u8 *) log, sizeof(*log) * log_len); 1243 } 1244} 1245 1246static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv) 1247{ 1248 struct ipw_fw_error *error; 1249 u32 log_len = ipw_get_event_log_len(priv); 1250 u32 base = ipw_read32(priv, IPW_ERROR_LOG); 1251 u32 elem_len = ipw_read_reg32(priv, base); 1252 1253 error = kmalloc(sizeof(*error) + 1254 sizeof(*error->elem) * elem_len + 1255 sizeof(*error->log) * log_len, GFP_ATOMIC); 1256 if (!error) { 1257 IPW_ERROR("Memory allocation for firmware error log " 1258 "failed.\n"); 1259 return NULL; 1260 } 1261 error->jiffies = jiffies; 1262 error->status = priv->status; 1263 error->config = priv->config; 1264 error->elem_len = elem_len; 1265 error->log_len = log_len; 1266 error->elem = (struct ipw_error_elem *)error->payload; 1267 error->log = (struct ipw_event *)(error->elem + elem_len); 1268 1269 ipw_capture_event_log(priv, log_len, error->log); 1270 1271 if (elem_len) 1272 ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem, 1273 sizeof(*error->elem) * elem_len); 1274 1275 return error; 1276} 1277 1278static ssize_t show_event_log(struct device *d, 1279 struct device_attribute *attr, char *buf) 1280{ 1281 struct ipw_priv *priv = dev_get_drvdata(d); 1282 u32 log_len = ipw_get_event_log_len(priv); 1283 u32 log_size; 1284 struct ipw_event *log; 1285 u32 len = 0, i; 1286 1287 /* not using min() because of its strict type checking */ 1288 log_size = PAGE_SIZE / sizeof(*log) > log_len ? 1289 sizeof(*log) * log_len : PAGE_SIZE; 1290 log = kzalloc(log_size, GFP_KERNEL); 1291 if (!log) { 1292 IPW_ERROR("Unable to allocate memory for log\n"); 1293 return 0; 1294 } 1295 log_len = log_size / sizeof(*log); 1296 ipw_capture_event_log(priv, log_len, log); 1297 1298 len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len); 1299 for (i = 0; i < log_len; i++) 1300 len += snprintf(buf + len, PAGE_SIZE - len, 1301 "\n%08X%08X%08X", 1302 log[i].time, log[i].event, log[i].data); 1303 len += snprintf(buf + len, PAGE_SIZE - len, "\n"); 1304 kfree(log); 1305 return len; 1306} 1307 1308static DEVICE_ATTR(event_log, S_IRUGO, show_event_log, NULL); 1309 1310static ssize_t show_error(struct device *d, 1311 struct device_attribute *attr, char *buf) 1312{ 1313 struct ipw_priv *priv = dev_get_drvdata(d); 1314 u32 len = 0, i; 1315 if (!priv->error) 1316 return 0; 1317 len += snprintf(buf + len, PAGE_SIZE - len, 1318 "%08lX%08X%08X%08X", 1319 priv->error->jiffies, 1320 priv->error->status, 1321 priv->error->config, priv->error->elem_len); 1322 for (i = 0; i < priv->error->elem_len; i++) 1323 len += snprintf(buf + len, PAGE_SIZE - len, 1324 "\n%08X%08X%08X%08X%08X%08X%08X", 1325 priv->error->elem[i].time, 1326 priv->error->elem[i].desc, 1327 priv->error->elem[i].blink1, 1328 priv->error->elem[i].blink2, 1329 priv->error->elem[i].link1, 1330 priv->error->elem[i].link2, 1331 priv->error->elem[i].data); 1332 1333 len += snprintf(buf + len, PAGE_SIZE - len, 1334 "\n%08X", priv->error->log_len); 1335 for (i = 0; i < priv->error->log_len; i++) 1336 len += snprintf(buf + len, PAGE_SIZE - len, 1337 "\n%08X%08X%08X", 1338 priv->error->log[i].time, 1339 priv->error->log[i].event, 1340 priv->error->log[i].data); 1341 len += snprintf(buf + len, PAGE_SIZE - len, "\n"); 1342 return len; 1343} 1344 1345static ssize_t clear_error(struct device *d, 1346 struct device_attribute *attr, 1347 const char *buf, size_t count) 1348{ 1349 struct ipw_priv *priv = dev_get_drvdata(d); 1350 1351 kfree(priv->error); 1352 priv->error = NULL; 1353 return count; 1354} 1355 1356static DEVICE_ATTR(error, S_IRUGO | S_IWUSR, show_error, clear_error); 1357 1358static ssize_t show_cmd_log(struct device *d, 1359 struct device_attribute *attr, char *buf) 1360{ 1361 struct ipw_priv *priv = dev_get_drvdata(d); 1362 u32 len = 0, i; 1363 if (!priv->cmdlog) 1364 return 0; 1365 for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len; 1366 (i != priv->cmdlog_pos) && (PAGE_SIZE - len); 1367 i = (i + 1) % priv->cmdlog_len) { 1368 len += 1369 snprintf(buf + len, PAGE_SIZE - len, 1370 "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies, 1371 priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd, 1372 priv->cmdlog[i].cmd.len); 1373 len += 1374 snprintk_buf(buf + len, PAGE_SIZE - len, 1375 (u8 *) priv->cmdlog[i].cmd.param, 1376 priv->cmdlog[i].cmd.len); 1377 len += snprintf(buf + len, PAGE_SIZE - len, "\n"); 1378 } 1379 len += snprintf(buf + len, PAGE_SIZE - len, "\n"); 1380 return len; 1381} 1382 1383static DEVICE_ATTR(cmd_log, S_IRUGO, show_cmd_log, NULL); 1384 1385#ifdef CONFIG_IPW2200_PROMISCUOUS 1386static void ipw_prom_free(struct ipw_priv *priv); 1387static int ipw_prom_alloc(struct ipw_priv *priv); 1388static ssize_t store_rtap_iface(struct device *d, 1389 struct device_attribute *attr, 1390 const char *buf, size_t count) 1391{ 1392 struct ipw_priv *priv = dev_get_drvdata(d); 1393 int rc = 0; 1394 1395 if (count < 1) 1396 return -EINVAL; 1397 1398 switch (buf[0]) { 1399 case '0': 1400 if (!rtap_iface) 1401 return count; 1402 1403 if (netif_running(priv->prom_net_dev)) { 1404 IPW_WARNING("Interface is up. Cannot unregister.\n"); 1405 return count; 1406 } 1407 1408 ipw_prom_free(priv); 1409 rtap_iface = 0; 1410 break; 1411 1412 case '1': 1413 if (rtap_iface) 1414 return count; 1415 1416 rc = ipw_prom_alloc(priv); 1417 if (!rc) 1418 rtap_iface = 1; 1419 break; 1420 1421 default: 1422 return -EINVAL; 1423 } 1424 1425 if (rc) { 1426 IPW_ERROR("Failed to register promiscuous network " 1427 "device (error %d).\n", rc); 1428 } 1429 1430 return count; 1431} 1432 1433static ssize_t show_rtap_iface(struct device *d, 1434 struct device_attribute *attr, 1435 char *buf) 1436{ 1437 struct ipw_priv *priv = dev_get_drvdata(d); 1438 if (rtap_iface) 1439 return sprintf(buf, "%s", priv->prom_net_dev->name); 1440 else { 1441 buf[0] = '-'; 1442 buf[1] = '1'; 1443 buf[2] = '\0'; 1444 return 3; 1445 } 1446} 1447 1448static DEVICE_ATTR(rtap_iface, S_IWUSR | S_IRUSR, show_rtap_iface, 1449 store_rtap_iface); 1450 1451static ssize_t store_rtap_filter(struct device *d, 1452 struct device_attribute *attr, 1453 const char *buf, size_t count) 1454{ 1455 struct ipw_priv *priv = dev_get_drvdata(d); 1456 1457 if (!priv->prom_priv) { 1458 IPW_ERROR("Attempting to set filter without " 1459 "rtap_iface enabled.\n"); 1460 return -EPERM; 1461 } 1462 1463 priv->prom_priv->filter = simple_strtol(buf, NULL, 0); 1464 1465 IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n", 1466 BIT_ARG16(priv->prom_priv->filter)); 1467 1468 return count; 1469} 1470 1471static ssize_t show_rtap_filter(struct device *d, 1472 struct device_attribute *attr, 1473 char *buf) 1474{ 1475 struct ipw_priv *priv = dev_get_drvdata(d); 1476 return sprintf(buf, "0x%04X", 1477 priv->prom_priv ? priv->prom_priv->filter : 0); 1478} 1479 1480static DEVICE_ATTR(rtap_filter, S_IWUSR | S_IRUSR, show_rtap_filter, 1481 store_rtap_filter); 1482#endif 1483 1484static ssize_t show_scan_age(struct device *d, struct device_attribute *attr, 1485 char *buf) 1486{ 1487 struct ipw_priv *priv = dev_get_drvdata(d); 1488 return sprintf(buf, "%d\n", priv->ieee->scan_age); 1489} 1490 1491static ssize_t store_scan_age(struct device *d, struct device_attribute *attr, 1492 const char *buf, size_t count) 1493{ 1494 struct ipw_priv *priv = dev_get_drvdata(d); 1495 struct net_device *dev = priv->net_dev; 1496 char buffer[] = "00000000"; 1497 unsigned long len = 1498 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1; 1499 unsigned long val; 1500 char *p = buffer; 1501 1502 IPW_DEBUG_INFO("enter\n"); 1503 1504 strncpy(buffer, buf, len); 1505 buffer[len] = 0; 1506 1507 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 1508 p++; 1509 if (p[0] == 'x' || p[0] == 'X') 1510 p++; 1511 val = simple_strtoul(p, &p, 16); 1512 } else 1513 val = simple_strtoul(p, &p, 10); 1514 if (p == buffer) { 1515 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name); 1516 } else { 1517 priv->ieee->scan_age = val; 1518 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age); 1519 } 1520 1521 IPW_DEBUG_INFO("exit\n"); 1522 return len; 1523} 1524 1525static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age); 1526 1527static ssize_t show_led(struct device *d, struct device_attribute *attr, 1528 char *buf) 1529{ 1530 struct ipw_priv *priv = dev_get_drvdata(d); 1531 return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1); 1532} 1533 1534static ssize_t store_led(struct device *d, struct device_attribute *attr, 1535 const char *buf, size_t count) 1536{ 1537 struct ipw_priv *priv = dev_get_drvdata(d); 1538 1539 IPW_DEBUG_INFO("enter\n"); 1540 1541 if (count == 0) 1542 return 0; 1543 1544 if (*buf == 0) { 1545 IPW_DEBUG_LED("Disabling LED control.\n"); 1546 priv->config |= CFG_NO_LED; 1547 ipw_led_shutdown(priv); 1548 } else { 1549 IPW_DEBUG_LED("Enabling LED control.\n"); 1550 priv->config &= ~CFG_NO_LED; 1551 ipw_led_init(priv); 1552 } 1553 1554 IPW_DEBUG_INFO("exit\n"); 1555 return count; 1556} 1557 1558static DEVICE_ATTR(led, S_IWUSR | S_IRUGO, show_led, store_led); 1559 1560static ssize_t show_status(struct device *d, 1561 struct device_attribute *attr, char *buf) 1562{ 1563 struct ipw_priv *p = dev_get_drvdata(d); 1564 return sprintf(buf, "0x%08x\n", (int)p->status); 1565} 1566 1567static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); 1568 1569static ssize_t show_cfg(struct device *d, struct device_attribute *attr, 1570 char *buf) 1571{ 1572 struct ipw_priv *p = dev_get_drvdata(d); 1573 return sprintf(buf, "0x%08x\n", (int)p->config); 1574} 1575 1576static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL); 1577 1578static ssize_t show_nic_type(struct device *d, 1579 struct device_attribute *attr, char *buf) 1580{ 1581 struct ipw_priv *priv = dev_get_drvdata(d); 1582 return sprintf(buf, "TYPE: %d\n", priv->nic_type); 1583} 1584 1585static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL); 1586 1587static ssize_t show_ucode_version(struct device *d, 1588 struct device_attribute *attr, char *buf) 1589{ 1590 u32 len = sizeof(u32), tmp = 0; 1591 struct ipw_priv *p = dev_get_drvdata(d); 1592 1593 if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len)) 1594 return 0; 1595 1596 return sprintf(buf, "0x%08x\n", tmp); 1597} 1598 1599static DEVICE_ATTR(ucode_version, S_IWUSR | S_IRUGO, show_ucode_version, NULL); 1600 1601static ssize_t show_rtc(struct device *d, struct device_attribute *attr, 1602 char *buf) 1603{ 1604 u32 len = sizeof(u32), tmp = 0; 1605 struct ipw_priv *p = dev_get_drvdata(d); 1606 1607 if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len)) 1608 return 0; 1609 1610 return sprintf(buf, "0x%08x\n", tmp); 1611} 1612 1613static DEVICE_ATTR(rtc, S_IWUSR | S_IRUGO, show_rtc, NULL); 1614 1615/* 1616 * Add a device attribute to view/control the delay between eeprom 1617 * operations. 1618 */ 1619static ssize_t show_eeprom_delay(struct device *d, 1620 struct device_attribute *attr, char *buf) 1621{ 1622 struct ipw_priv *p = dev_get_drvdata(d); 1623 int n = p->eeprom_delay; 1624 return sprintf(buf, "%i\n", n); 1625} 1626static ssize_t store_eeprom_delay(struct device *d, 1627 struct device_attribute *attr, 1628 const char *buf, size_t count) 1629{ 1630 struct ipw_priv *p = dev_get_drvdata(d); 1631 sscanf(buf, "%i", &p->eeprom_delay); 1632 return strnlen(buf, count); 1633} 1634 1635static DEVICE_ATTR(eeprom_delay, S_IWUSR | S_IRUGO, 1636 show_eeprom_delay, store_eeprom_delay); 1637 1638static ssize_t show_command_event_reg(struct device *d, 1639 struct device_attribute *attr, char *buf) 1640{ 1641 u32 reg = 0; 1642 struct ipw_priv *p = dev_get_drvdata(d); 1643 1644 reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT); 1645 return sprintf(buf, "0x%08x\n", reg); 1646} 1647static ssize_t store_command_event_reg(struct device *d, 1648 struct device_attribute *attr, 1649 const char *buf, size_t count) 1650{ 1651 u32 reg; 1652 struct ipw_priv *p = dev_get_drvdata(d); 1653 1654 sscanf(buf, "%x", ®); 1655 ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg); 1656 return strnlen(buf, count); 1657} 1658 1659static DEVICE_ATTR(command_event_reg, S_IWUSR | S_IRUGO, 1660 show_command_event_reg, store_command_event_reg); 1661 1662static ssize_t show_mem_gpio_reg(struct device *d, 1663 struct device_attribute *attr, char *buf) 1664{ 1665 u32 reg = 0; 1666 struct ipw_priv *p = dev_get_drvdata(d); 1667 1668 reg = ipw_read_reg32(p, 0x301100); 1669 return sprintf(buf, "0x%08x\n", reg); 1670} 1671static ssize_t store_mem_gpio_reg(struct device *d, 1672 struct device_attribute *attr, 1673 const char *buf, size_t count) 1674{ 1675 u32 reg; 1676 struct ipw_priv *p = dev_get_drvdata(d); 1677 1678 sscanf(buf, "%x", ®); 1679 ipw_write_reg32(p, 0x301100, reg); 1680 return strnlen(buf, count); 1681} 1682 1683static DEVICE_ATTR(mem_gpio_reg, S_IWUSR | S_IRUGO, 1684 show_mem_gpio_reg, store_mem_gpio_reg); 1685 1686static ssize_t show_indirect_dword(struct device *d, 1687 struct device_attribute *attr, char *buf) 1688{ 1689 u32 reg = 0; 1690 struct ipw_priv *priv = dev_get_drvdata(d); 1691 1692 if (priv->status & STATUS_INDIRECT_DWORD) 1693 reg = ipw_read_reg32(priv, priv->indirect_dword); 1694 else 1695 reg = 0; 1696 1697 return sprintf(buf, "0x%08x\n", reg); 1698} 1699static ssize_t store_indirect_dword(struct device *d, 1700 struct device_attribute *attr, 1701 const char *buf, size_t count) 1702{ 1703 struct ipw_priv *priv = dev_get_drvdata(d); 1704 1705 sscanf(buf, "%x", &priv->indirect_dword); 1706 priv->status |= STATUS_INDIRECT_DWORD; 1707 return strnlen(buf, count); 1708} 1709 1710static DEVICE_ATTR(indirect_dword, S_IWUSR | S_IRUGO, 1711 show_indirect_dword, store_indirect_dword); 1712 1713static ssize_t show_indirect_byte(struct device *d, 1714 struct device_attribute *attr, char *buf) 1715{ 1716 u8 reg = 0; 1717 struct ipw_priv *priv = dev_get_drvdata(d); 1718 1719 if (priv->status & STATUS_INDIRECT_BYTE) 1720 reg = ipw_read_reg8(priv, priv->indirect_byte); 1721 else 1722 reg = 0; 1723 1724 return sprintf(buf, "0x%02x\n", reg); 1725} 1726static ssize_t store_indirect_byte(struct device *d, 1727 struct device_attribute *attr, 1728 const char *buf, size_t count) 1729{ 1730 struct ipw_priv *priv = dev_get_drvdata(d); 1731 1732 sscanf(buf, "%x", &priv->indirect_byte); 1733 priv->status |= STATUS_INDIRECT_BYTE; 1734 return strnlen(buf, count); 1735} 1736 1737static DEVICE_ATTR(indirect_byte, S_IWUSR | S_IRUGO, 1738 show_indirect_byte, store_indirect_byte); 1739 1740static ssize_t show_direct_dword(struct device *d, 1741 struct device_attribute *attr, char *buf) 1742{ 1743 u32 reg = 0; 1744 struct ipw_priv *priv = dev_get_drvdata(d); 1745 1746 if (priv->status & STATUS_DIRECT_DWORD) 1747 reg = ipw_read32(priv, priv->direct_dword); 1748 else 1749 reg = 0; 1750 1751 return sprintf(buf, "0x%08x\n", reg); 1752} 1753static ssize_t store_direct_dword(struct device *d, 1754 struct device_attribute *attr, 1755 const char *buf, size_t count) 1756{ 1757 struct ipw_priv *priv = dev_get_drvdata(d); 1758 1759 sscanf(buf, "%x", &priv->direct_dword); 1760 priv->status |= STATUS_DIRECT_DWORD; 1761 return strnlen(buf, count); 1762} 1763 1764static DEVICE_ATTR(direct_dword, S_IWUSR | S_IRUGO, 1765 show_direct_dword, store_direct_dword); 1766 1767static int rf_kill_active(struct ipw_priv *priv) 1768{ 1769 if (0 == (ipw_read32(priv, 0x30) & 0x10000)) { 1770 priv->status |= STATUS_RF_KILL_HW; 1771 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); 1772 } else { 1773 priv->status &= ~STATUS_RF_KILL_HW; 1774 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false); 1775 } 1776 1777 return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0; 1778} 1779 1780static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr, 1781 char *buf) 1782{ 1783 /* 0 - RF kill not enabled 1784 1 - SW based RF kill active (sysfs) 1785 2 - HW based RF kill active 1786 3 - Both HW and SW baed RF kill active */ 1787 struct ipw_priv *priv = dev_get_drvdata(d); 1788 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) | 1789 (rf_kill_active(priv) ? 0x2 : 0x0); 1790 return sprintf(buf, "%i\n", val); 1791} 1792 1793static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio) 1794{ 1795 if ((disable_radio ? 1 : 0) == 1796 ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0)) 1797 return 0; 1798 1799 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n", 1800 disable_radio ? "OFF" : "ON"); 1801 1802 if (disable_radio) { 1803 priv->status |= STATUS_RF_KILL_SW; 1804 1805 cancel_delayed_work(&priv->request_scan); 1806 cancel_delayed_work(&priv->request_direct_scan); 1807 cancel_delayed_work(&priv->request_passive_scan); 1808 cancel_delayed_work(&priv->scan_event); 1809 schedule_work(&priv->down); 1810 } else { 1811 priv->status &= ~STATUS_RF_KILL_SW; 1812 if (rf_kill_active(priv)) { 1813 IPW_DEBUG_RF_KILL("Can not turn radio back on - " 1814 "disabled by HW switch\n"); 1815 /* Make sure the RF_KILL check timer is running */ 1816 cancel_delayed_work(&priv->rf_kill); 1817 schedule_delayed_work(&priv->rf_kill, 1818 round_jiffies_relative(2 * HZ)); 1819 } else 1820 schedule_work(&priv->up); 1821 } 1822 1823 return 1; 1824} 1825 1826static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr, 1827 const char *buf, size_t count) 1828{ 1829 struct ipw_priv *priv = dev_get_drvdata(d); 1830 1831 ipw_radio_kill_sw(priv, buf[0] == '1'); 1832 1833 return count; 1834} 1835 1836static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill); 1837 1838static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr, 1839 char *buf) 1840{ 1841 struct ipw_priv *priv = dev_get_drvdata(d); 1842 int pos = 0, len = 0; 1843 if (priv->config & CFG_SPEED_SCAN) { 1844 while (priv->speed_scan[pos] != 0) 1845 len += sprintf(&buf[len], "%d ", 1846 priv->speed_scan[pos++]); 1847 return len + sprintf(&buf[len], "\n"); 1848 } 1849 1850 return sprintf(buf, "0\n"); 1851} 1852 1853static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr, 1854 const char *buf, size_t count) 1855{ 1856 struct ipw_priv *priv = dev_get_drvdata(d); 1857 int channel, pos = 0; 1858 const char *p = buf; 1859 1860 /* list of space separated channels to scan, optionally ending with 0 */ 1861 while ((channel = simple_strtol(p, NULL, 0))) { 1862 if (pos == MAX_SPEED_SCAN - 1) { 1863 priv->speed_scan[pos] = 0; 1864 break; 1865 } 1866 1867 if (libipw_is_valid_channel(priv->ieee, channel)) 1868 priv->speed_scan[pos++] = channel; 1869 else 1870 IPW_WARNING("Skipping invalid channel request: %d\n", 1871 channel); 1872 p = strchr(p, ' '); 1873 if (!p) 1874 break; 1875 while (*p == ' ' || *p == '\t') 1876 p++; 1877 } 1878 1879 if (pos == 0) 1880 priv->config &= ~CFG_SPEED_SCAN; 1881 else { 1882 priv->speed_scan_pos = 0; 1883 priv->config |= CFG_SPEED_SCAN; 1884 } 1885 1886 return count; 1887} 1888 1889static DEVICE_ATTR(speed_scan, S_IWUSR | S_IRUGO, show_speed_scan, 1890 store_speed_scan); 1891 1892static ssize_t show_net_stats(struct device *d, struct device_attribute *attr, 1893 char *buf) 1894{ 1895 struct ipw_priv *priv = dev_get_drvdata(d); 1896 return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0'); 1897} 1898 1899static ssize_t store_net_stats(struct device *d, struct device_attribute *attr, 1900 const char *buf, size_t count) 1901{ 1902 struct ipw_priv *priv = dev_get_drvdata(d); 1903 if (buf[0] == '1') 1904 priv->config |= CFG_NET_STATS; 1905 else 1906 priv->config &= ~CFG_NET_STATS; 1907 1908 return count; 1909} 1910 1911static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO, 1912 show_net_stats, store_net_stats); 1913 1914static ssize_t show_channels(struct device *d, 1915 struct device_attribute *attr, 1916 char *buf) 1917{ 1918 struct ipw_priv *priv = dev_get_drvdata(d); 1919 const struct libipw_geo *geo = libipw_get_geo(priv->ieee); 1920 int len = 0, i; 1921 1922 len = sprintf(&buf[len], 1923 "Displaying %d channels in 2.4Ghz band " 1924 "(802.11bg):\n", geo->bg_channels); 1925 1926 for (i = 0; i < geo->bg_channels; i++) { 1927 len += sprintf(&buf[len], "%d: BSS%s%s, %s, Band %s.\n", 1928 geo->bg[i].channel, 1929 geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT ? 1930 " (radar spectrum)" : "", 1931 ((geo->bg[i].flags & LIBIPW_CH_NO_IBSS) || 1932 (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)) 1933 ? "" : ", IBSS", 1934 geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY ? 1935 "passive only" : "active/passive", 1936 geo->bg[i].flags & LIBIPW_CH_B_ONLY ? 1937 "B" : "B/G"); 1938 } 1939 1940 len += sprintf(&buf[len], 1941 "Displaying %d channels in 5.2Ghz band " 1942 "(802.11a):\n", geo->a_channels); 1943 for (i = 0; i < geo->a_channels; i++) { 1944 len += sprintf(&buf[len], "%d: BSS%s%s, %s.\n", 1945 geo->a[i].channel, 1946 geo->a[i].flags & LIBIPW_CH_RADAR_DETECT ? 1947 " (radar spectrum)" : "", 1948 ((geo->a[i].flags & LIBIPW_CH_NO_IBSS) || 1949 (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT)) 1950 ? "" : ", IBSS", 1951 geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY ? 1952 "passive only" : "active/passive"); 1953 } 1954 1955 return len; 1956} 1957 1958static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); 1959 1960static void notify_wx_assoc_event(struct ipw_priv *priv) 1961{ 1962 union iwreq_data wrqu; 1963 wrqu.ap_addr.sa_family = ARPHRD_ETHER; 1964 if (priv->status & STATUS_ASSOCIATED) 1965 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN); 1966 else 1967 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); 1968 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); 1969} 1970 1971static void ipw_irq_tasklet(struct ipw_priv *priv) 1972{ 1973 u32 inta, inta_mask, handled = 0; 1974 unsigned long flags; 1975 int rc = 0; 1976 1977 spin_lock_irqsave(&priv->irq_lock, flags); 1978 1979 inta = ipw_read32(priv, IPW_INTA_RW); 1980 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); 1981 1982 if (inta == 0xFFFFFFFF) { 1983 /* Hardware disappeared */ 1984 IPW_WARNING("TASKLET INTA == 0xFFFFFFFF\n"); 1985 /* Only handle the cached INTA values */ 1986 inta = 0; 1987 } 1988 inta &= (IPW_INTA_MASK_ALL & inta_mask); 1989 1990 /* Add any cached INTA values that need to be handled */ 1991 inta |= priv->isr_inta; 1992 1993 spin_unlock_irqrestore(&priv->irq_lock, flags); 1994 1995 spin_lock_irqsave(&priv->lock, flags); 1996 1997 /* handle all the justifications for the interrupt */ 1998 if (inta & IPW_INTA_BIT_RX_TRANSFER) { 1999 ipw_rx(priv); 2000 handled |= IPW_INTA_BIT_RX_TRANSFER; 2001 } 2002 2003 if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) { 2004 IPW_DEBUG_HC("Command completed.\n"); 2005 rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1); 2006 priv->status &= ~STATUS_HCMD_ACTIVE; 2007 wake_up_interruptible(&priv->wait_command_queue); 2008 handled |= IPW_INTA_BIT_TX_CMD_QUEUE; 2009 } 2010 2011 if (inta & IPW_INTA_BIT_TX_QUEUE_1) { 2012 IPW_DEBUG_TX("TX_QUEUE_1\n"); 2013 rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0); 2014 handled |= IPW_INTA_BIT_TX_QUEUE_1; 2015 } 2016 2017 if (inta & IPW_INTA_BIT_TX_QUEUE_2) { 2018 IPW_DEBUG_TX("TX_QUEUE_2\n"); 2019 rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1); 2020 handled |= IPW_INTA_BIT_TX_QUEUE_2; 2021 } 2022 2023 if (inta & IPW_INTA_BIT_TX_QUEUE_3) { 2024 IPW_DEBUG_TX("TX_QUEUE_3\n"); 2025 rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2); 2026 handled |= IPW_INTA_BIT_TX_QUEUE_3; 2027 } 2028 2029 if (inta & IPW_INTA_BIT_TX_QUEUE_4) { 2030 IPW_DEBUG_TX("TX_QUEUE_4\n"); 2031 rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3); 2032 handled |= IPW_INTA_BIT_TX_QUEUE_4; 2033 } 2034 2035 if (inta & IPW_INTA_BIT_STATUS_CHANGE) { 2036 IPW_WARNING("STATUS_CHANGE\n"); 2037 handled |= IPW_INTA_BIT_STATUS_CHANGE; 2038 } 2039 2040 if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) { 2041 IPW_WARNING("TX_PERIOD_EXPIRED\n"); 2042 handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED; 2043 } 2044 2045 if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) { 2046 IPW_WARNING("HOST_CMD_DONE\n"); 2047 handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE; 2048 } 2049 2050 if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) { 2051 IPW_WARNING("FW_INITIALIZATION_DONE\n"); 2052 handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE; 2053 } 2054 2055 if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) { 2056 IPW_WARNING("PHY_OFF_DONE\n"); 2057 handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE; 2058 } 2059 2060 if (inta & IPW_INTA_BIT_RF_KILL_DONE) { 2061 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n"); 2062 priv->status |= STATUS_RF_KILL_HW; 2063 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); 2064 wake_up_interruptible(&priv->wait_command_queue); 2065 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); 2066 cancel_delayed_work(&priv->request_scan); 2067 cancel_delayed_work(&priv->request_direct_scan); 2068 cancel_delayed_work(&priv->request_passive_scan); 2069 cancel_delayed_work(&priv->scan_event); 2070 schedule_work(&priv->link_down); 2071 schedule_delayed_work(&priv->rf_kill, 2 * HZ); 2072 handled |= IPW_INTA_BIT_RF_KILL_DONE; 2073 } 2074 2075 if (inta & IPW_INTA_BIT_FATAL_ERROR) { 2076 IPW_WARNING("Firmware error detected. Restarting.\n"); 2077 if (priv->error) { 2078 IPW_DEBUG_FW("Sysfs 'error' log already exists.\n"); 2079 if (ipw_debug_level & IPW_DL_FW_ERRORS) { 2080 struct ipw_fw_error *error = 2081 ipw_alloc_error_log(priv); 2082 ipw_dump_error_log(priv, error); 2083 kfree(error); 2084 } 2085 } else { 2086 priv->error = ipw_alloc_error_log(priv); 2087 if (priv->error) 2088 IPW_DEBUG_FW("Sysfs 'error' log captured.\n"); 2089 else 2090 IPW_DEBUG_FW("Error allocating sysfs 'error' " 2091 "log.\n"); 2092 if (ipw_debug_level & IPW_DL_FW_ERRORS) 2093 ipw_dump_error_log(priv, priv->error); 2094 } 2095 2096 /* XXX: If hardware encryption is for WPA/WPA2, 2097 * we have to notify the supplicant. */ 2098 if (priv->ieee->sec.encrypt) { 2099 priv->status &= ~STATUS_ASSOCIATED; 2100 notify_wx_assoc_event(priv); 2101 } 2102 2103 /* Keep the restart process from trying to send host 2104 * commands by clearing the INIT status bit */ 2105 priv->status &= ~STATUS_INIT; 2106 2107 /* Cancel currently queued command. */ 2108 priv->status &= ~STATUS_HCMD_ACTIVE; 2109 wake_up_interruptible(&priv->wait_command_queue); 2110 2111 schedule_work(&priv->adapter_restart); 2112 handled |= IPW_INTA_BIT_FATAL_ERROR; 2113 } 2114 2115 if (inta & IPW_INTA_BIT_PARITY_ERROR) { 2116 IPW_ERROR("Parity error\n"); 2117 handled |= IPW_INTA_BIT_PARITY_ERROR; 2118 } 2119 2120 if (handled != inta) { 2121 IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); 2122 } 2123 2124 spin_unlock_irqrestore(&priv->lock, flags); 2125 2126 /* enable all interrupts */ 2127 ipw_enable_interrupts(priv); 2128} 2129 2130#define IPW_CMD(x) case IPW_CMD_ ## x : return #x 2131static char *get_cmd_string(u8 cmd) 2132{ 2133 switch (cmd) { 2134 IPW_CMD(HOST_COMPLETE); 2135 IPW_CMD(POWER_DOWN); 2136 IPW_CMD(SYSTEM_CONFIG); 2137 IPW_CMD(MULTICAST_ADDRESS); 2138 IPW_CMD(SSID); 2139 IPW_CMD(ADAPTER_ADDRESS); 2140 IPW_CMD(PORT_TYPE); 2141 IPW_CMD(RTS_THRESHOLD); 2142 IPW_CMD(FRAG_THRESHOLD); 2143 IPW_CMD(POWER_MODE); 2144 IPW_CMD(WEP_KEY); 2145 IPW_CMD(TGI_TX_KEY); 2146 IPW_CMD(SCAN_REQUEST); 2147 IPW_CMD(SCAN_REQUEST_EXT); 2148 IPW_CMD(ASSOCIATE); 2149 IPW_CMD(SUPPORTED_RATES); 2150 IPW_CMD(SCAN_ABORT); 2151 IPW_CMD(TX_FLUSH); 2152 IPW_CMD(QOS_PARAMETERS); 2153 IPW_CMD(DINO_CONFIG); 2154 IPW_CMD(RSN_CAPABILITIES); 2155 IPW_CMD(RX_KEY); 2156 IPW_CMD(CARD_DISABLE); 2157 IPW_CMD(SEED_NUMBER); 2158 IPW_CMD(TX_POWER); 2159 IPW_CMD(COUNTRY_INFO); 2160 IPW_CMD(AIRONET_INFO); 2161 IPW_CMD(AP_TX_POWER); 2162 IPW_CMD(CCKM_INFO); 2163 IPW_CMD(CCX_VER_INFO); 2164 IPW_CMD(SET_CALIBRATION); 2165 IPW_CMD(SENSITIVITY_CALIB); 2166 IPW_CMD(RETRY_LIMIT); 2167 IPW_CMD(IPW_PRE_POWER_DOWN); 2168 IPW_CMD(VAP_BEACON_TEMPLATE); 2169 IPW_CMD(VAP_DTIM_PERIOD); 2170 IPW_CMD(EXT_SUPPORTED_RATES); 2171 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT); 2172 IPW_CMD(VAP_QUIET_INTERVALS); 2173 IPW_CMD(VAP_CHANNEL_SWITCH); 2174 IPW_CMD(VAP_MANDATORY_CHANNELS); 2175 IPW_CMD(VAP_CELL_PWR_LIMIT); 2176 IPW_CMD(VAP_CF_PARAM_SET); 2177 IPW_CMD(VAP_SET_BEACONING_STATE); 2178 IPW_CMD(MEASUREMENT); 2179 IPW_CMD(POWER_CAPABILITY); 2180 IPW_CMD(SUPPORTED_CHANNELS); 2181 IPW_CMD(TPC_REPORT); 2182 IPW_CMD(WME_INFO); 2183 IPW_CMD(PRODUCTION_COMMAND); 2184 default: 2185 return "UNKNOWN"; 2186 } 2187} 2188 2189#define HOST_COMPLETE_TIMEOUT HZ 2190 2191static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd) 2192{ 2193 int rc = 0; 2194 unsigned long flags; 2195 unsigned long now, end; 2196 2197 spin_lock_irqsave(&priv->lock, flags); 2198 if (priv->status & STATUS_HCMD_ACTIVE) { 2199 IPW_ERROR("Failed to send %s: Already sending a command.\n", 2200 get_cmd_string(cmd->cmd)); 2201 spin_unlock_irqrestore(&priv->lock, flags); 2202 return -EAGAIN; 2203 } 2204 2205 priv->status |= STATUS_HCMD_ACTIVE; 2206 2207 if (priv->cmdlog) { 2208 priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies; 2209 priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd; 2210 priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len; 2211 memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param, 2212 cmd->len); 2213 priv->cmdlog[priv->cmdlog_pos].retcode = -1; 2214 } 2215 2216 IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n", 2217 get_cmd_string(cmd->cmd), cmd->cmd, cmd->len, 2218 priv->status); 2219 2220#ifndef DEBUG_CMD_WEP_KEY 2221 if (cmd->cmd == IPW_CMD_WEP_KEY) 2222 IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n"); 2223 else 2224#endif 2225 printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len); 2226 2227 rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0); 2228 if (rc) { 2229 priv->status &= ~STATUS_HCMD_ACTIVE; 2230 IPW_ERROR("Failed to send %s: Reason %d\n", 2231 get_cmd_string(cmd->cmd), rc); 2232 spin_unlock_irqrestore(&priv->lock, flags); 2233 goto exit; 2234 } 2235 spin_unlock_irqrestore(&priv->lock, flags); 2236 2237 now = jiffies; 2238 end = now + HOST_COMPLETE_TIMEOUT; 2239again: 2240 rc = wait_event_interruptible_timeout(priv->wait_command_queue, 2241 !(priv-> 2242 status & STATUS_HCMD_ACTIVE), 2243 end - now); 2244 if (rc < 0) { 2245 now = jiffies; 2246 if (time_before(now, end)) 2247 goto again; 2248 rc = 0; 2249 } 2250 2251 if (rc == 0) { 2252 spin_lock_irqsave(&priv->lock, flags); 2253 if (priv->status & STATUS_HCMD_ACTIVE) { 2254 IPW_ERROR("Failed to send %s: Command timed out.\n", 2255 get_cmd_string(cmd->cmd)); 2256 priv->status &= ~STATUS_HCMD_ACTIVE; 2257 spin_unlock_irqrestore(&priv->lock, flags); 2258 rc = -EIO; 2259 goto exit; 2260 } 2261 spin_unlock_irqrestore(&priv->lock, flags); 2262 } else 2263 rc = 0; 2264 2265 if (priv->status & STATUS_RF_KILL_HW) { 2266 IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n", 2267 get_cmd_string(cmd->cmd)); 2268 rc = -EIO; 2269 goto exit; 2270 } 2271 2272 exit: 2273 if (priv->cmdlog) { 2274 priv->cmdlog[priv->cmdlog_pos++].retcode = rc; 2275 priv->cmdlog_pos %= priv->cmdlog_len; 2276 } 2277 return rc; 2278} 2279 2280static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command) 2281{ 2282 struct host_cmd cmd = { 2283 .cmd = command, 2284 }; 2285 2286 return __ipw_send_cmd(priv, &cmd); 2287} 2288 2289static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len, 2290 void *data) 2291{ 2292 struct host_cmd cmd = { 2293 .cmd = command, 2294 .len = len, 2295 .param = data, 2296 }; 2297 2298 return __ipw_send_cmd(priv, &cmd); 2299} 2300 2301static int ipw_send_host_complete(struct ipw_priv *priv) 2302{ 2303 if (!priv) { 2304 IPW_ERROR("Invalid args\n"); 2305 return -1; 2306 } 2307 2308 return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE); 2309} 2310 2311static int ipw_send_system_config(struct ipw_priv *priv) 2312{ 2313 return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG, 2314 sizeof(priv->sys_config), 2315 &priv->sys_config); 2316} 2317 2318static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len) 2319{ 2320 if (!priv || !ssid) { 2321 IPW_ERROR("Invalid args\n"); 2322 return -1; 2323 } 2324 2325 return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE), 2326 ssid); 2327} 2328 2329static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac) 2330{ 2331 if (!priv || !mac) { 2332 IPW_ERROR("Invalid args\n"); 2333 return -1; 2334 } 2335 2336 IPW_DEBUG_INFO("%s: Setting MAC to %pM\n", 2337 priv->net_dev->name, mac); 2338 2339 return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac); 2340} 2341 2342static void ipw_adapter_restart(void *adapter) 2343{ 2344 struct ipw_priv *priv = adapter; 2345 2346 if (priv->status & STATUS_RF_KILL_MASK) 2347 return; 2348 2349 ipw_down(priv); 2350 2351 if (priv->assoc_network && 2352 (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS)) 2353 ipw_remove_current_network(priv); 2354 2355 if (ipw_up(priv)) { 2356 IPW_ERROR("Failed to up device\n"); 2357 return; 2358 } 2359} 2360 2361static void ipw_bg_adapter_restart(struct work_struct *work) 2362{ 2363 struct ipw_priv *priv = 2364 container_of(work, struct ipw_priv, adapter_restart); 2365 mutex_lock(&priv->mutex); 2366 ipw_adapter_restart(priv); 2367 mutex_unlock(&priv->mutex); 2368} 2369 2370static void ipw_abort_scan(struct ipw_priv *priv); 2371 2372#define IPW_SCAN_CHECK_WATCHDOG (5 * HZ) 2373 2374static void ipw_scan_check(void *data) 2375{ 2376 struct ipw_priv *priv = data; 2377 2378 if (priv->status & STATUS_SCAN_ABORTING) { 2379 IPW_DEBUG_SCAN("Scan completion watchdog resetting " 2380 "adapter after (%dms).\n", 2381 jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG)); 2382 schedule_work(&priv->adapter_restart); 2383 } else if (priv->status & STATUS_SCANNING) { 2384 IPW_DEBUG_SCAN("Scan completion watchdog aborting scan " 2385 "after (%dms).\n", 2386 jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG)); 2387 ipw_abort_scan(priv); 2388 schedule_delayed_work(&priv->scan_check, HZ); 2389 } 2390} 2391 2392static void ipw_bg_scan_check(struct work_struct *work) 2393{ 2394 struct ipw_priv *priv = 2395 container_of(work, struct ipw_priv, scan_check.work); 2396 mutex_lock(&priv->mutex); 2397 ipw_scan_check(priv); 2398 mutex_unlock(&priv->mutex); 2399} 2400 2401static int ipw_send_scan_request_ext(struct ipw_priv *priv, 2402 struct ipw_scan_request_ext *request) 2403{ 2404 return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT, 2405 sizeof(*request), request); 2406} 2407 2408static int ipw_send_scan_abort(struct ipw_priv *priv) 2409{ 2410 if (!priv) { 2411 IPW_ERROR("Invalid args\n"); 2412 return -1; 2413 } 2414 2415 return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT); 2416} 2417 2418static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens) 2419{ 2420 struct ipw_sensitivity_calib calib = { 2421 .beacon_rssi_raw = cpu_to_le16(sens), 2422 }; 2423 2424 return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib), 2425 &calib); 2426} 2427 2428static int ipw_send_associate(struct ipw_priv *priv, 2429 struct ipw_associate *associate) 2430{ 2431 if (!priv || !associate) { 2432 IPW_ERROR("Invalid args\n"); 2433 return -1; 2434 } 2435 2436 return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(*associate), 2437 associate); 2438} 2439 2440static int ipw_send_supported_rates(struct ipw_priv *priv, 2441 struct ipw_supported_rates *rates) 2442{ 2443 if (!priv || !rates) { 2444 IPW_ERROR("Invalid args\n"); 2445 return -1; 2446 } 2447 2448 return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates), 2449 rates); 2450} 2451 2452static int ipw_set_random_seed(struct ipw_priv *priv) 2453{ 2454 u32 val; 2455 2456 if (!priv) { 2457 IPW_ERROR("Invalid args\n"); 2458 return -1; 2459 } 2460 2461 get_random_bytes(&val, sizeof(val)); 2462 2463 return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val); 2464} 2465 2466static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off) 2467{ 2468 __le32 v = cpu_to_le32(phy_off); 2469 if (!priv) { 2470 IPW_ERROR("Invalid args\n"); 2471 return -1; 2472 } 2473 2474 return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(v), &v); 2475} 2476 2477static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power) 2478{ 2479 if (!priv || !power) { 2480 IPW_ERROR("Invalid args\n"); 2481 return -1; 2482 } 2483 2484 return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power); 2485} 2486 2487static int ipw_set_tx_power(struct ipw_priv *priv) 2488{ 2489 const struct libipw_geo *geo = libipw_get_geo(priv->ieee); 2490 struct ipw_tx_power tx_power; 2491 s8 max_power; 2492 int i; 2493 2494 memset(&tx_power, 0, sizeof(tx_power)); 2495 2496 /* configure device for 'G' band */ 2497 tx_power.ieee_mode = IPW_G_MODE; 2498 tx_power.num_channels = geo->bg_channels; 2499 for (i = 0; i < geo->bg_channels; i++) { 2500 max_power = geo->bg[i].max_power; 2501 tx_power.channels_tx_power[i].channel_number = 2502 geo->bg[i].channel; 2503 tx_power.channels_tx_power[i].tx_power = max_power ? 2504 min(max_power, priv->tx_power) : priv->tx_power; 2505 } 2506 if (ipw_send_tx_power(priv, &tx_power)) 2507 return -EIO; 2508 2509 /* configure device to also handle 'B' band */ 2510 tx_power.ieee_mode = IPW_B_MODE; 2511 if (ipw_send_tx_power(priv, &tx_power)) 2512 return -EIO; 2513 2514 /* configure device to also handle 'A' band */ 2515 if (priv->ieee->abg_true) { 2516 tx_power.ieee_mode = IPW_A_MODE; 2517 tx_power.num_channels = geo->a_channels; 2518 for (i = 0; i < tx_power.num_channels; i++) { 2519 max_power = geo->a[i].max_power; 2520 tx_power.channels_tx_power[i].channel_number = 2521 geo->a[i].channel; 2522 tx_power.channels_tx_power[i].tx_power = max_power ? 2523 min(max_power, priv->tx_power) : priv->tx_power; 2524 } 2525 if (ipw_send_tx_power(priv, &tx_power)) 2526 return -EIO; 2527 } 2528 return 0; 2529} 2530 2531static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts) 2532{ 2533 struct ipw_rts_threshold rts_threshold = { 2534 .rts_threshold = cpu_to_le16(rts), 2535 }; 2536 2537 if (!priv) { 2538 IPW_ERROR("Invalid args\n"); 2539 return -1; 2540 } 2541 2542 return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD, 2543 sizeof(rts_threshold), &rts_threshold); 2544} 2545 2546static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag) 2547{ 2548 struct ipw_frag_threshold frag_threshold = { 2549 .frag_threshold = cpu_to_le16(frag), 2550 }; 2551 2552 if (!priv) { 2553 IPW_ERROR("Invalid args\n"); 2554 return -1; 2555 } 2556 2557 return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD, 2558 sizeof(frag_threshold), &frag_threshold); 2559} 2560 2561static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode) 2562{ 2563 __le32 param; 2564 2565 if (!priv) { 2566 IPW_ERROR("Invalid args\n"); 2567 return -1; 2568 } 2569 2570 /* If on battery, set to 3, if AC set to CAM, else user 2571 * level */ 2572 switch (mode) { 2573 case IPW_POWER_BATTERY: 2574 param = cpu_to_le32(IPW_POWER_INDEX_3); 2575 break; 2576 case IPW_POWER_AC: 2577 param = cpu_to_le32(IPW_POWER_MODE_CAM); 2578 break; 2579 default: 2580 param = cpu_to_le32(mode); 2581 break; 2582 } 2583 2584 return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param), 2585 ¶m); 2586} 2587 2588static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit) 2589{ 2590 struct ipw_retry_limit retry_limit = { 2591 .short_retry_limit = slimit, 2592 .long_retry_limit = llimit 2593 }; 2594 2595 if (!priv) { 2596 IPW_ERROR("Invalid args\n"); 2597 return -1; 2598 } 2599 2600 return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit), 2601 &retry_limit); 2602} 2603 2604/* 2605 * The IPW device contains a Microwire compatible EEPROM that stores 2606 * various data like the MAC address. Usually the firmware has exclusive 2607 * access to the eeprom, but during device initialization (before the 2608 * device driver has sent the HostComplete command to the firmware) the 2609 * device driver has read access to the EEPROM by way of indirect addressing 2610 * through a couple of memory mapped registers. 2611 * 2612 * The following is a simplified implementation for pulling data out of the 2613 * the eeprom, along with some helper functions to find information in 2614 * the per device private data's copy of the eeprom. 2615 * 2616 * NOTE: To better understand how these functions work (i.e what is a chip 2617 * select and why do have to keep driving the eeprom clock?), read 2618 * just about any data sheet for a Microwire compatible EEPROM. 2619 */ 2620 2621/* write a 32 bit value into the indirect accessor register */ 2622static inline void eeprom_write_reg(struct ipw_priv *p, u32 data) 2623{ 2624 ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data); 2625 2626 /* the eeprom requires some time to complete the operation */ 2627 udelay(p->eeprom_delay); 2628} 2629 2630/* perform a chip select operation */ 2631static void eeprom_cs(struct ipw_priv *priv) 2632{ 2633 eeprom_write_reg(priv, 0); 2634 eeprom_write_reg(priv, EEPROM_BIT_CS); 2635 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK); 2636 eeprom_write_reg(priv, EEPROM_BIT_CS); 2637} 2638 2639/* perform a chip select operation */ 2640static void eeprom_disable_cs(struct ipw_priv *priv) 2641{ 2642 eeprom_write_reg(priv, EEPROM_BIT_CS); 2643 eeprom_write_reg(priv, 0); 2644 eeprom_write_reg(priv, EEPROM_BIT_SK); 2645} 2646 2647/* push a single bit down to the eeprom */ 2648static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit) 2649{ 2650 int d = (bit ? EEPROM_BIT_DI : 0); 2651 eeprom_write_reg(p, EEPROM_BIT_CS | d); 2652 eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK); 2653} 2654 2655/* push an opcode followed by an address down to the eeprom */ 2656static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr) 2657{ 2658 int i; 2659 2660 eeprom_cs(priv); 2661 eeprom_write_bit(priv, 1); 2662 eeprom_write_bit(priv, op & 2); 2663 eeprom_write_bit(priv, op & 1); 2664 for (i = 7; i >= 0; i--) { 2665 eeprom_write_bit(priv, addr & (1 << i)); 2666 } 2667} 2668 2669/* pull 16 bits off the eeprom, one bit at a time */ 2670static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr) 2671{ 2672 int i; 2673 u16 r = 0; 2674 2675 /* Send READ Opcode */ 2676 eeprom_op(priv, EEPROM_CMD_READ, addr); 2677 2678 /* Send dummy bit */ 2679 eeprom_write_reg(priv, EEPROM_BIT_CS); 2680 2681 /* Read the byte off the eeprom one bit at a time */ 2682 for (i = 0; i < 16; i++) { 2683 u32 data = 0; 2684 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK); 2685 eeprom_write_reg(priv, EEPROM_BIT_CS); 2686 data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS); 2687 r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0); 2688 } 2689 2690 /* Send another dummy bit */ 2691 eeprom_write_reg(priv, 0); 2692 eeprom_disable_cs(priv); 2693 2694 return r; 2695} 2696 2697/* helper function for pulling the mac address out of the private */ 2698/* data's copy of the eeprom data */ 2699static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac) 2700{ 2701 memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6); 2702} 2703 2704/* 2705 * Either the device driver (i.e. the host) or the firmware can 2706 * load eeprom data into the designated region in SRAM. If neither 2707 * happens then the FW will shutdown with a fatal error. 2708 * 2709 * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE 2710 * bit needs region of shared SRAM needs to be non-zero. 2711 */ 2712static void ipw_eeprom_init_sram(struct ipw_priv *priv) 2713{ 2714 int i; 2715 __le16 *eeprom = (__le16 *) priv->eeprom; 2716 2717 IPW_DEBUG_TRACE(">>\n"); 2718 2719 /* read entire contents of eeprom into private buffer */ 2720 for (i = 0; i < 128; i++) 2721 eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i)); 2722 2723 /* 2724 If the data looks correct, then copy it to our private 2725 copy. Otherwise let the firmware know to perform the operation 2726 on its own. 2727 */ 2728 if (priv->eeprom[EEPROM_VERSION] != 0) { 2729 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n"); 2730 2731 /* write the eeprom data to sram */ 2732 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++) 2733 ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]); 2734 2735 /* Do not load eeprom data on fatal error or suspend */ 2736 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); 2737 } else { 2738 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n"); 2739 2740 /* Load eeprom data on fatal error or suspend */ 2741 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1); 2742 } 2743 2744 IPW_DEBUG_TRACE("<<\n"); 2745} 2746 2747static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count) 2748{ 2749 count >>= 2; 2750 if (!count) 2751 return; 2752 _ipw_write32(priv, IPW_AUTOINC_ADDR, start); 2753 while (count--) 2754 _ipw_write32(priv, IPW_AUTOINC_DATA, 0); 2755} 2756 2757static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv) 2758{ 2759 ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL, 2760 CB_NUMBER_OF_ELEMENTS_SMALL * 2761 sizeof(struct command_block)); 2762} 2763 2764static int ipw_fw_dma_enable(struct ipw_priv *priv) 2765{ /* start dma engine but no transfers yet */ 2766 2767 IPW_DEBUG_FW(">> :\n"); 2768 2769 /* Start the dma */ 2770 ipw_fw_dma_reset_command_blocks(priv); 2771 2772 /* Write CB base address */ 2773 ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL); 2774 2775 IPW_DEBUG_FW("<< :\n"); 2776 return 0; 2777} 2778 2779static void ipw_fw_dma_abort(struct ipw_priv *priv) 2780{ 2781 u32 control = 0; 2782 2783 IPW_DEBUG_FW(">> :\n"); 2784 2785 /* set the Stop and Abort bit */ 2786 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT; 2787 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); 2788 priv->sram_desc.last_cb_index = 0; 2789 2790 IPW_DEBUG_FW("<<\n"); 2791} 2792 2793static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index, 2794 struct command_block *cb) 2795{ 2796 u32 address = 2797 IPW_SHARED_SRAM_DMA_CONTROL + 2798 (sizeof(struct command_block) * index); 2799 IPW_DEBUG_FW(">> :\n"); 2800 2801 ipw_write_indirect(priv, address, (u8 *) cb, 2802 (int)sizeof(struct command_block)); 2803 2804 IPW_DEBUG_FW("<< :\n"); 2805 return 0; 2806 2807} 2808 2809static int ipw_fw_dma_kick(struct ipw_priv *priv) 2810{ 2811 u32 control = 0; 2812 u32 index = 0; 2813 2814 IPW_DEBUG_FW(">> :\n"); 2815 2816 for (index = 0; index < priv->sram_desc.last_cb_index; index++) 2817 ipw_fw_dma_write_command_block(priv, index, 2818 &priv->sram_desc.cb_list[index]); 2819 2820 /* Enable the DMA in the CSR register */ 2821 ipw_clear_bit(priv, IPW_RESET_REG, 2822 IPW_RESET_REG_MASTER_DISABLED | 2823 IPW_RESET_REG_STOP_MASTER); 2824 2825 /* Set the Start bit. */ 2826 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START; 2827 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); 2828 2829 IPW_DEBUG_FW("<< :\n"); 2830 return 0; 2831} 2832 2833static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv) 2834{ 2835 u32 address; 2836 u32 register_value = 0; 2837 u32 cb_fields_address = 0; 2838 2839 IPW_DEBUG_FW(">> :\n"); 2840 address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB); 2841 IPW_DEBUG_FW_INFO("Current CB is 0x%x\n", address); 2842 2843 /* Read the DMA Controlor register */ 2844 register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL); 2845 IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x\n", register_value); 2846 2847 /* Print the CB values */ 2848 cb_fields_address = address; 2849 register_value = ipw_read_reg32(priv, cb_fields_address); 2850 IPW_DEBUG_FW_INFO("Current CB Control Field is 0x%x\n", register_value); 2851 2852 cb_fields_address += sizeof(u32); 2853 register_value = ipw_read_reg32(priv, cb_fields_address); 2854 IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x\n", register_value); 2855 2856 cb_fields_address += sizeof(u32); 2857 register_value = ipw_read_reg32(priv, cb_fields_address); 2858 IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x\n", 2859 register_value); 2860 2861 cb_fields_address += sizeof(u32); 2862 register_value = ipw_read_reg32(priv, cb_fields_address); 2863 IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x\n", register_value); 2864 2865 IPW_DEBUG_FW(">> :\n"); 2866} 2867 2868static int ipw_fw_dma_command_block_index(struct ipw_priv *priv) 2869{ 2870 u32 current_cb_address = 0; 2871 u32 current_cb_index = 0; 2872 2873 IPW_DEBUG_FW("<< :\n"); 2874 current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB); 2875 2876 current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) / 2877 sizeof(struct command_block); 2878 2879 IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X\n", 2880 current_cb_index, current_cb_address); 2881 2882 IPW_DEBUG_FW(">> :\n"); 2883 return current_cb_index; 2884 2885} 2886 2887static int ipw_fw_dma_add_command_block(struct ipw_priv *priv, 2888 u32 src_address, 2889 u32 dest_address, 2890 u32 length, 2891 int interrupt_enabled, int is_last) 2892{ 2893 2894 u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC | 2895 CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG | 2896 CB_DEST_SIZE_LONG; 2897 struct command_block *cb; 2898 u32 last_cb_element = 0; 2899 2900 IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n", 2901 src_address, dest_address, length); 2902 2903 if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL) 2904 return -1; 2905 2906 last_cb_element = priv->sram_desc.last_cb_index; 2907 cb = &priv->sram_desc.cb_list[last_cb_element]; 2908 priv->sram_desc.last_cb_index++; 2909 2910 /* Calculate the new CB control word */ 2911 if (interrupt_enabled) 2912 control |= CB_INT_ENABLED; 2913 2914 if (is_last) 2915 control |= CB_LAST_VALID; 2916 2917 control |= length; 2918 2919 /* Calculate the CB Element's checksum value */ 2920 cb->status = control ^ src_address ^ dest_address; 2921 2922 /* Copy the Source and Destination addresses */ 2923 cb->dest_addr = dest_address; 2924 cb->source_addr = src_address; 2925 2926 /* Copy the Control Word last */ 2927 cb->control = control; 2928 2929 return 0; 2930} 2931 2932static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address, 2933 int nr, u32 dest_address, u32 len) 2934{ 2935 int ret, i; 2936 u32 size; 2937 2938 IPW_DEBUG_FW(">>\n"); 2939 IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n", 2940 nr, dest_address, len); 2941 2942 for (i = 0; i < nr; i++) { 2943 size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH); 2944 ret = ipw_fw_dma_add_command_block(priv, src_address[i], 2945 dest_address + 2946 i * CB_MAX_LENGTH, size, 2947 0, 0); 2948 if (ret) { 2949 IPW_DEBUG_FW_INFO(": Failed\n"); 2950 return -1; 2951 } else 2952 IPW_DEBUG_FW_INFO(": Added new cb\n"); 2953 } 2954 2955 IPW_DEBUG_FW("<<\n"); 2956 return 0; 2957} 2958 2959static int ipw_fw_dma_wait(struct ipw_priv *priv) 2960{ 2961 u32 current_index = 0, previous_index; 2962 u32 watchdog = 0; 2963 2964 IPW_DEBUG_FW(">> :\n"); 2965 2966 current_index = ipw_fw_dma_command_block_index(priv); 2967 IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n", 2968 (int)priv->sram_desc.last_cb_index); 2969 2970 while (current_index < priv->sram_desc.last_cb_index) { 2971 udelay(50); 2972 previous_index = current_index; 2973 current_index = ipw_fw_dma_command_block_index(priv); 2974 2975 if (previous_index < current_index) { 2976 watchdog = 0; 2977 continue; 2978 } 2979 if (++watchdog > 400) { 2980 IPW_DEBUG_FW_INFO("Timeout\n"); 2981 ipw_fw_dma_dump_command_block(priv); 2982 ipw_fw_dma_abort(priv); 2983 return -1; 2984 } 2985 } 2986 2987 ipw_fw_dma_abort(priv); 2988 2989 /*Disable the DMA in the CSR register */ 2990 ipw_set_bit(priv, IPW_RESET_REG, 2991 IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER); 2992 2993 IPW_DEBUG_FW("<< dmaWaitSync\n"); 2994 return 0; 2995} 2996 2997static void ipw_remove_current_network(struct ipw_priv *priv) 2998{ 2999 struct list_head *element, *safe; 3000 struct libipw_network *network = NULL; 3001 unsigned long flags; 3002 3003 spin_lock_irqsave(&priv->ieee->lock, flags); 3004 list_for_each_safe(element, safe, &priv->ieee->network_list) { 3005 network = list_entry(element, struct libipw_network, list); 3006 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) { 3007 list_del(element); 3008 list_add_tail(&network->list, 3009 &priv->ieee->network_free_list); 3010 } 3011 } 3012 spin_unlock_irqrestore(&priv->ieee->lock, flags); 3013} 3014 3015/** 3016 * Check that card is still alive. 3017 * Reads debug register from domain0. 3018 * If card is present, pre-defined value should 3019 * be found there. 3020 * 3021 * @param priv 3022 * @return 1 if card is present, 0 otherwise 3023 */ 3024static inline int ipw_alive(struct ipw_priv *priv) 3025{ 3026 return ipw_read32(priv, 0x90) == 0xd55555d5; 3027} 3028 3029/* timeout in msec, attempted in 10-msec quanta */ 3030static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask, 3031 int timeout) 3032{ 3033 int i = 0; 3034 3035 do { 3036 if ((ipw_read32(priv, addr) & mask) == mask) 3037 return i; 3038 mdelay(10); 3039 i += 10; 3040 } while (i < timeout); 3041 3042 return -ETIME; 3043} 3044 3045/* These functions load the firmware and micro code for the operation of 3046 * the ipw hardware. It assumes the buffer has all the bits for the 3047 * image and the caller is handling the memory allocation and clean up. 3048 */ 3049 3050static int ipw_stop_master(struct ipw_priv *priv) 3051{ 3052 int rc; 3053 3054 IPW_DEBUG_TRACE(">>\n"); 3055 /* stop master. typical delay - 0 */ 3056 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); 3057 3058 /* timeout is in msec, polled in 10-msec quanta */ 3059 rc = ipw_poll_bit(priv, IPW_RESET_REG, 3060 IPW_RESET_REG_MASTER_DISABLED, 100); 3061 if (rc < 0) { 3062 IPW_ERROR("wait for stop master failed after 100ms\n"); 3063 return -1; 3064 } 3065 3066 IPW_DEBUG_INFO("stop master %dms\n", rc); 3067 3068 return rc; 3069} 3070 3071static void ipw_arc_release(struct ipw_priv *priv) 3072{ 3073 IPW_DEBUG_TRACE(">>\n"); 3074 mdelay(5); 3075 3076 ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); 3077 3078 /* no one knows timing, for safety add some delay */ 3079 mdelay(5); 3080} 3081 3082struct fw_chunk { 3083 __le32 address; 3084 __le32 length; 3085}; 3086 3087static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len) 3088{ 3089 int rc = 0, i, addr; 3090 u8 cr = 0; 3091 __le16 *image; 3092 3093 image = (__le16 *) data; 3094 3095 IPW_DEBUG_TRACE(">>\n"); 3096 3097 rc = ipw_stop_master(priv); 3098 3099 if (rc < 0) 3100 return rc; 3101 3102 for (addr = IPW_SHARED_LOWER_BOUND; 3103 addr < IPW_REGISTER_DOMAIN1_END; addr += 4) { 3104 ipw_write32(priv, addr, 0); 3105 } 3106 3107 /* no ucode (yet) */ 3108 memset(&priv->dino_alive, 0, sizeof(priv->dino_alive)); 3109 /* destroy DMA queues */ 3110 /* reset sequence */ 3111 3112 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON); 3113 ipw_arc_release(priv); 3114 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF); 3115 mdelay(1); 3116 3117 /* reset PHY */ 3118 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN); 3119 mdelay(1); 3120 3121 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0); 3122 mdelay(1); 3123 3124 /* enable ucode store */ 3125 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0); 3126 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS); 3127 mdelay(1); 3128 3129 /* write ucode */ 3130 /** 3131 * @bug 3132 * Do NOT set indirect address register once and then 3133 * store data to indirect data register in the loop. 3134 * It seems very reasonable, but in this case DINO do not 3135 * accept ucode. It is essential to set address each time. 3136 */ 3137 /* load new ipw uCode */ 3138 for (i = 0; i < len / 2; i++) 3139 ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE, 3140 le16_to_cpu(image[i])); 3141 3142 /* enable DINO */ 3143 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); 3144 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM); 3145 3146 /* this is where the igx / win driver deveates from the VAP driver. */ 3147 3148 /* wait for alive response */ 3149 for (i = 0; i < 100; i++) { 3150 /* poll for incoming data */ 3151 cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS); 3152 if (cr & DINO_RXFIFO_DATA) 3153 break; 3154 mdelay(1); 3155 } 3156 3157 if (cr & DINO_RXFIFO_DATA) { 3158 /* alive_command_responce size is NOT multiple of 4 */ 3159 __le32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4]; 3160 3161 for (i = 0; i < ARRAY_SIZE(response_buffer); i++) 3162 response_buffer[i] = 3163 cpu_to_le32(ipw_read_reg32(priv, 3164 IPW_BASEBAND_RX_FIFO_READ)); 3165 memcpy(&priv->dino_alive, response_buffer, 3166 sizeof(priv->dino_alive)); 3167 if (priv->dino_alive.alive_command == 1 3168 && priv->dino_alive.ucode_valid == 1) { 3169 rc = 0; 3170 IPW_DEBUG_INFO 3171 ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) " 3172 "of %02d/%02d/%02d %02d:%02d\n", 3173 priv->dino_alive.software_revision, 3174 priv->dino_alive.software_revision, 3175 priv->dino_alive.device_identifier, 3176 priv->dino_alive.device_identifier, 3177 priv->dino_alive.time_stamp[0], 3178 priv->dino_alive.time_stamp[1], 3179 priv->dino_alive.time_stamp[2], 3180 priv->dino_alive.time_stamp[3], 3181 priv->dino_alive.time_stamp[4]); 3182 } else { 3183 IPW_DEBUG_INFO("Microcode is not alive\n"); 3184 rc = -EINVAL; 3185 } 3186 } else { 3187 IPW_DEBUG_INFO("No alive response from DINO\n"); 3188 rc = -ETIME; 3189 } 3190 3191 /* disable DINO, otherwise for some reason 3192 firmware have problem getting alive resp. */ 3193 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); 3194 3195 return rc; 3196} 3197 3198static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len) 3199{ 3200 int ret = -1; 3201 int offset = 0; 3202 struct fw_chunk *chunk; 3203 int total_nr = 0; 3204 int i; 3205 struct pci_pool *pool; 3206 void **virts; 3207 dma_addr_t *phys; 3208 3209 IPW_DEBUG_TRACE("<< :\n"); 3210 3211 virts = kmalloc(sizeof(void *) * CB_NUMBER_OF_ELEMENTS_SMALL, 3212 GFP_KERNEL); 3213 if (!virts) 3214 return -ENOMEM; 3215 3216 phys = kmalloc(sizeof(dma_addr_t) * CB_NUMBER_OF_ELEMENTS_SMALL, 3217 GFP_KERNEL); 3218 if (!phys) { 3219 kfree(virts); 3220 return -ENOMEM; 3221 } 3222 pool = pci_pool_create("ipw2200", priv->pci_dev, CB_MAX_LENGTH, 0, 0); 3223 if (!pool) { 3224 IPW_ERROR("pci_pool_create failed\n"); 3225 kfree(phys); 3226 kfree(virts); 3227 return -ENOMEM; 3228 } 3229 3230 /* Start the Dma */ 3231 ret = ipw_fw_dma_enable(priv); 3232 3233 /* the DMA is already ready this would be a bug. */ 3234 BUG_ON(priv->sram_desc.last_cb_index > 0); 3235 3236 do { 3237 u32 chunk_len; 3238 u8 *start; 3239 int size; 3240 int nr = 0; 3241 3242 chunk = (struct fw_chunk *)(data + offset); 3243 offset += sizeof(struct fw_chunk); 3244 chunk_len = le32_to_cpu(chunk->length); 3245 start = data + offset; 3246 3247 nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH; 3248 for (i = 0; i < nr; i++) { 3249 virts[total_nr] = pci_pool_alloc(pool, GFP_KERNEL, 3250 &phys[total_nr]); 3251 if (!virts[total_nr]) { 3252 ret = -ENOMEM; 3253 goto out; 3254 } 3255 size = min_t(u32, chunk_len - i * CB_MAX_LENGTH, 3256 CB_MAX_LENGTH); 3257 memcpy(virts[total_nr], start, size); 3258 start += size; 3259 total_nr++; 3260 /* We don't support fw chunk larger than 64*8K */ 3261 BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL); 3262 } 3263 3264 /* build DMA packet and queue up for sending */ 3265 /* dma to chunk->address, the chunk->length bytes from data + 3266 * offeset*/ 3267 /* Dma loading */ 3268 ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr], 3269 nr, le32_to_cpu(chunk->address), 3270 chunk_len); 3271 if (ret) { 3272 IPW_DEBUG_INFO("dmaAddBuffer Failed\n"); 3273 goto out; 3274 } 3275 3276 offset += chunk_len; 3277 } while (offset < len); 3278 3279 /* Run the DMA and wait for the answer */ 3280 ret = ipw_fw_dma_kick(priv); 3281 if (ret) { 3282 IPW_ERROR("dmaKick Failed\n"); 3283 goto out; 3284 } 3285 3286 ret = ipw_fw_dma_wait(priv); 3287 if (ret) { 3288 IPW_ERROR("dmaWaitSync Failed\n"); 3289 goto out; 3290 } 3291 out: 3292 for (i = 0; i < total_nr; i++) 3293 pci_pool_free(pool, virts[i], phys[i]); 3294 3295 pci_pool_destroy(pool); 3296 kfree(phys); 3297 kfree(virts); 3298 3299 return ret; 3300} 3301 3302/* stop nic */ 3303static int ipw_stop_nic(struct ipw_priv *priv) 3304{ 3305 int rc = 0; 3306 3307 /* stop */ 3308 ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); 3309 3310 rc = ipw_poll_bit(priv, IPW_RESET_REG, 3311 IPW_RESET_REG_MASTER_DISABLED, 500); 3312 if (rc < 0) { 3313 IPW_ERROR("wait for reg master disabled failed after 500ms\n"); 3314 return rc; 3315 } 3316 3317 ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); 3318 3319 return rc; 3320} 3321 3322static void ipw_start_nic(struct ipw_priv *priv) 3323{ 3324 IPW_DEBUG_TRACE(">>\n"); 3325 3326 /* prvHwStartNic release ARC */ 3327 ipw_clear_bit(priv, IPW_RESET_REG, 3328 IPW_RESET_REG_MASTER_DISABLED | 3329 IPW_RESET_REG_STOP_MASTER | 3330 CBD_RESET_REG_PRINCETON_RESET); 3331 3332 /* enable power management */ 3333 ipw_set_bit(priv, IPW_GP_CNTRL_RW, 3334 IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY); 3335 3336 IPW_DEBUG_TRACE("<<\n"); 3337} 3338 3339static int ipw_init_nic(struct ipw_priv *priv) 3340{ 3341 int rc; 3342 3343 IPW_DEBUG_TRACE(">>\n"); 3344 /* reset */ 3345 /*prvHwInitNic */ 3346 /* set "initialization complete" bit to move adapter to D0 state */ 3347 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); 3348 3349 /* low-level PLL activation */ 3350 ipw_write32(priv, IPW_READ_INT_REGISTER, 3351 IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER); 3352 3353 /* wait for clock stabilization */ 3354 rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW, 3355 IPW_GP_CNTRL_BIT_CLOCK_READY, 250); 3356 if (rc < 0) 3357 IPW_DEBUG_INFO("FAILED wait for clock stablization\n"); 3358 3359 /* assert SW reset */ 3360 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET); 3361 3362 udelay(10); 3363 3364 /* set "initialization complete" bit to move adapter to D0 state */ 3365 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); 3366 3367 IPW_DEBUG_TRACE(">>\n"); 3368 return 0; 3369} 3370 3371/* Call this function from process context, it will sleep in request_firmware. 3372 * Probe is an ok place to call this from. 3373 */ 3374static int ipw_reset_nic(struct ipw_priv *priv) 3375{ 3376 int rc = 0; 3377 unsigned long flags; 3378 3379 IPW_DEBUG_TRACE(">>\n"); 3380 3381 rc = ipw_init_nic(priv); 3382 3383 spin_lock_irqsave(&priv->lock, flags); 3384 /* Clear the 'host command active' bit... */ 3385 priv->status &= ~STATUS_HCMD_ACTIVE; 3386 wake_up_interruptible(&priv->wait_command_queue); 3387 priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); 3388 wake_up_interruptible(&priv->wait_state); 3389 spin_unlock_irqrestore(&priv->lock, flags); 3390 3391 IPW_DEBUG_TRACE("<<\n"); 3392 return rc; 3393} 3394 3395 3396struct ipw_fw { 3397 __le32 ver; 3398 __le32 boot_size; 3399 __le32 ucode_size; 3400 __le32 fw_size; 3401 u8 data[0]; 3402}; 3403 3404static int ipw_get_fw(struct ipw_priv *priv, 3405 const struct firmware **raw, const char *name) 3406{ 3407 struct ipw_fw *fw; 3408 int rc; 3409 3410 /* ask firmware_class module to get the boot firmware off disk */ 3411 rc = request_firmware(raw, name, &priv->pci_dev->dev); 3412 if (rc < 0) { 3413 IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc); 3414 return rc; 3415 } 3416 3417 if ((*raw)->size < sizeof(*fw)) { 3418 IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size); 3419 return -EINVAL; 3420 } 3421 3422 fw = (void *)(*raw)->data; 3423 3424 if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) + 3425 le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) { 3426 IPW_ERROR("%s is too small or corrupt (%zd)\n", 3427 name, (*raw)->size); 3428 return -EINVAL; 3429 } 3430 3431 IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n", 3432 name, 3433 le32_to_cpu(fw->ver) >> 16, 3434 le32_to_cpu(fw->ver) & 0xff, 3435 (*raw)->size - sizeof(*fw)); 3436 return 0; 3437} 3438 3439#define IPW_RX_BUF_SIZE (3000) 3440 3441static void ipw_rx_queue_reset(struct ipw_priv *priv, 3442 struct ipw_rx_queue *rxq) 3443{ 3444 unsigned long flags; 3445 int i; 3446 3447 spin_lock_irqsave(&rxq->lock, flags); 3448 3449 INIT_LIST_HEAD(&rxq->rx_free); 3450 INIT_LIST_HEAD(&rxq->rx_used); 3451 3452 /* Fill the rx_used queue with _all_ of the Rx buffers */ 3453 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { 3454 /* In the reset function, these buffers may have been allocated 3455 * to an SKB, so we need to unmap and free potential storage */ 3456 if (rxq->pool[i].skb != NULL) { 3457 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr, 3458 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); 3459 dev_kfree_skb(rxq->pool[i].skb); 3460 rxq->pool[i].skb = NULL; 3461 } 3462 list_add_tail(&rxq->pool[i].list, &rxq->rx_used); 3463 } 3464 3465 /* Set us so that we have processed and used all buffers, but have 3466 * not restocked the Rx queue with fresh buffers */ 3467 rxq->read = rxq->write = 0; 3468 rxq->free_count = 0; 3469 spin_unlock_irqrestore(&rxq->lock, flags); 3470} 3471 3472#ifdef CONFIG_PM 3473static int fw_loaded = 0; 3474static const struct firmware *raw = NULL; 3475 3476static void free_firmware(void) 3477{ 3478 if (fw_loaded) { 3479 release_firmware(raw); 3480 raw = NULL; 3481 fw_loaded = 0; 3482 } 3483} 3484#else 3485#define free_firmware() do {} while (0) 3486#endif 3487 3488static int ipw_load(struct ipw_priv *priv) 3489{ 3490#ifndef CONFIG_PM 3491 const struct firmware *raw = NULL; 3492#endif 3493 struct ipw_fw *fw; 3494 u8 *boot_img, *ucode_img, *fw_img; 3495 u8 *name = NULL; 3496 int rc = 0, retries = 3; 3497 3498 switch (priv->ieee->iw_mode) { 3499 case IW_MODE_ADHOC: 3500 name = "ipw2200-ibss.fw"; 3501 break; 3502#ifdef CONFIG_IPW2200_MONITOR 3503 case IW_MODE_MONITOR: 3504 name = "ipw2200-sniffer.fw"; 3505 break; 3506#endif 3507 case IW_MODE_INFRA: 3508 name = "ipw2200-bss.fw"; 3509 break; 3510 } 3511 3512 if (!name) { 3513 rc = -EINVAL; 3514 goto error; 3515 } 3516 3517#ifdef CONFIG_PM 3518 if (!fw_loaded) { 3519#endif 3520 rc = ipw_get_fw(priv, &raw, name); 3521 if (rc < 0) 3522 goto error; 3523#ifdef CONFIG_PM 3524 } 3525#endif 3526 3527 fw = (void *)raw->data; 3528 boot_img = &fw->data[0]; 3529 ucode_img = &fw->data[le32_to_cpu(fw->boot_size)]; 3530 fw_img = &fw->data[le32_to_cpu(fw->boot_size) + 3531 le32_to_cpu(fw->ucode_size)]; 3532 3533 if (rc < 0) 3534 goto error; 3535 3536 if (!priv->rxq) 3537 priv->rxq = ipw_rx_queue_alloc(priv); 3538 else 3539 ipw_rx_queue_reset(priv, priv->rxq); 3540 if (!priv->rxq) { 3541 IPW_ERROR("Unable to initialize Rx queue\n"); 3542 goto error; 3543 } 3544 3545 retry: 3546 /* Ensure interrupts are disabled */ 3547 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); 3548 priv->status &= ~STATUS_INT_ENABLED; 3549 3550 /* ack pending interrupts */ 3551 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); 3552 3553 ipw_stop_nic(priv); 3554 3555 rc = ipw_reset_nic(priv); 3556 if (rc < 0) { 3557 IPW_ERROR("Unable to reset NIC\n"); 3558 goto error; 3559 } 3560 3561 ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND, 3562 IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND); 3563 3564 /* DMA the initial boot firmware into the device */ 3565 rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size)); 3566 if (rc < 0) { 3567 IPW_ERROR("Unable to load boot firmware: %d\n", rc); 3568 goto error; 3569 } 3570 3571 /* kick start the device */ 3572 ipw_start_nic(priv); 3573 3574 /* wait for the device to finish its initial startup sequence */ 3575 rc = ipw_poll_bit(priv, IPW_INTA_RW, 3576 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); 3577 if (rc < 0) { 3578 IPW_ERROR("device failed to boot initial fw image\n"); 3579 goto error; 3580 } 3581 IPW_DEBUG_INFO("initial device response after %dms\n", rc); 3582 3583 /* ack fw init done interrupt */ 3584 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); 3585 3586 /* DMA the ucode into the device */ 3587 rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size)); 3588 if (rc < 0) { 3589 IPW_ERROR("Unable to load ucode: %d\n", rc); 3590 goto error; 3591 } 3592 3593 /* stop nic */ 3594 ipw_stop_nic(priv); 3595 3596 /* DMA bss firmware into the device */ 3597 rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size)); 3598 if (rc < 0) { 3599 IPW_ERROR("Unable to load firmware: %d\n", rc); 3600 goto error; 3601 } 3602#ifdef CONFIG_PM 3603 fw_loaded = 1; 3604#endif 3605 3606 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); 3607 3608 rc = ipw_queue_reset(priv); 3609 if (rc < 0) { 3610 IPW_ERROR("Unable to initialize queues\n"); 3611 goto error; 3612 } 3613 3614 /* Ensure interrupts are disabled */ 3615 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); 3616 /* ack pending interrupts */ 3617 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); 3618 3619 /* kick start the device */ 3620 ipw_start_nic(priv); 3621 3622 if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) { 3623 if (retries > 0) { 3624 IPW_WARNING("Parity error. Retrying init.\n"); 3625 retries--; 3626 goto retry; 3627 } 3628 3629 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n"); 3630 rc = -EIO; 3631 goto error; 3632 } 3633 3634 /* wait for the device */ 3635 rc = ipw_poll_bit(priv, IPW_INTA_RW, 3636 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); 3637 if (rc < 0) { 3638 IPW_ERROR("device failed to start within 500ms\n"); 3639 goto error; 3640 } 3641 IPW_DEBUG_INFO("device response after %dms\n", rc); 3642 3643 /* ack fw init done interrupt */ 3644 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); 3645 3646 /* read eeprom data and initialize the eeprom region of sram */ 3647 priv->eeprom_delay = 1; 3648 ipw_eeprom_init_sram(priv); 3649 3650 /* enable interrupts */ 3651 ipw_enable_interrupts(priv); 3652 3653 /* Ensure our queue has valid packets */ 3654 ipw_rx_queue_replenish(priv); 3655 3656 ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read); 3657 3658 /* ack pending interrupts */ 3659 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); 3660 3661#ifndef CONFIG_PM 3662 release_firmware(raw); 3663#endif 3664 return 0; 3665 3666 error: 3667 if (priv->rxq) { 3668 ipw_rx_queue_free(priv, priv->rxq); 3669 priv->rxq = NULL; 3670 } 3671 ipw_tx_queue_free(priv); 3672 if (raw) 3673 release_firmware(raw); 3674#ifdef CONFIG_PM 3675 fw_loaded = 0; 3676 raw = NULL; 3677#endif 3678 3679 return rc; 3680} 3681 3682/** 3683 * DMA services 3684 * 3685 * Theory of operation 3686 * 3687 * A queue is a circular buffers with 'Read' and 'Write' pointers. 3688 * 2 empty entries always kept in the buffer to protect from overflow. 3689 * 3690 * For Tx queue, there are low mark and high mark limits. If, after queuing 3691 * the packet for Tx, free space become < low mark, Tx queue stopped. When 3692 * reclaiming packets (on 'tx done IRQ), if free space become > high mark, 3693 * Tx queue resumed. 3694 * 3695 * The IPW operates with six queues, one receive queue in the device's 3696 * sram, one transmit queue for sending commands to the device firmware, 3697 * and four transmit queues for data. 3698 * 3699 * The four transmit queues allow for performing quality of service (qos) 3700 * transmissions as per the 802.11 protocol. Currently Linux does not 3701 * provide a mechanism to the user for utilizing prioritized queues, so 3702 * we only utilize the first data transmit queue (queue1). 3703 */ 3704 3705/** 3706 * Driver allocates buffers of this size for Rx 3707 */ 3708 3709/** 3710 * ipw_rx_queue_space - Return number of free slots available in queue. 3711 */ 3712static int ipw_rx_queue_space(const struct ipw_rx_queue *q) 3713{ 3714 int s = q->read - q->write; 3715 if (s <= 0) 3716 s += RX_QUEUE_SIZE; 3717 /* keep some buffer to not confuse full and empty queue */ 3718 s -= 2; 3719 if (s < 0) 3720 s = 0; 3721 return s; 3722} 3723 3724static inline int ipw_tx_queue_space(const struct clx2_queue *q) 3725{ 3726 int s = q->last_used - q->first_empty; 3727 if (s <= 0) 3728 s += q->n_bd; 3729 s -= 2; /* keep some reserve to not confuse empty and full situations */ 3730 if (s < 0) 3731 s = 0; 3732 return s; 3733} 3734 3735static inline int ipw_queue_inc_wrap(int index, int n_bd) 3736{ 3737 return (++index == n_bd) ? 0 : index; 3738} 3739 3740/** 3741 * Initialize common DMA queue structure 3742 * 3743 * @param q queue to init 3744 * @param count Number of BD's to allocate. Should be power of 2 3745 * @param read_register Address for 'read' register 3746 * (not offset within BAR, full address) 3747 * @param write_register Address for 'write' register 3748 * (not offset within BAR, full address) 3749 * @param base_register Address for 'base' register 3750 * (not offset within BAR, full address) 3751 * @param size Address for 'size' register 3752 * (not offset within BAR, full address) 3753 */ 3754static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q, 3755 int count, u32 read, u32 write, u32 base, u32 size) 3756{ 3757 q->n_bd = count; 3758 3759 q->low_mark = q->n_bd / 4; 3760 if (q->low_mark < 4) 3761 q->low_mark = 4; 3762 3763 q->high_mark = q->n_bd / 8; 3764 if (q->high_mark < 2) 3765 q->high_mark = 2; 3766 3767 q->first_empty = q->last_used = 0; 3768 q->reg_r = read; 3769 q->reg_w = write; 3770 3771 ipw_write32(priv, base, q->dma_addr); 3772 ipw_write32(priv, size, count); 3773 ipw_write32(priv, read, 0); 3774 ipw_write32(priv, write, 0); 3775 3776 _ipw_read32(priv, 0x90); 3777} 3778 3779static int ipw_queue_tx_init(struct ipw_priv *priv, 3780 struct clx2_tx_queue *q, 3781 int count, u32 read, u32 write, u32 base, u32 size) 3782{ 3783 struct pci_dev *dev = priv->pci_dev; 3784 3785 q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL); 3786 if (!q->txb) { 3787 IPW_ERROR("vmalloc for auxiliary BD structures failed\n"); 3788 return -ENOMEM; 3789 } 3790 3791 q->bd = 3792 pci_alloc_consistent(dev, sizeof(q->bd[0]) * count, &q->q.dma_addr); 3793 if (!q->bd) { 3794 IPW_ERROR("pci_alloc_consistent(%zd) failed\n", 3795 sizeof(q->bd[0]) * count); 3796 kfree(q->txb); 3797 q->txb = NULL; 3798 return -ENOMEM; 3799 } 3800 3801 ipw_queue_init(priv, &q->q, count, read, write, base, size); 3802 return 0; 3803} 3804 3805/** 3806 * Free one TFD, those at index [txq->q.last_used]. 3807 * Do NOT advance any indexes 3808 * 3809 * @param dev 3810 * @param txq 3811 */ 3812static void ipw_queue_tx_free_tfd(struct ipw_priv *priv, 3813 struct clx2_tx_queue *txq) 3814{ 3815 struct tfd_frame *bd = &txq->bd[txq->q.last_used]; 3816 struct pci_dev *dev = priv->pci_dev; 3817 int i; 3818 3819 /* classify bd */ 3820 if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE) 3821 /* nothing to cleanup after for host commands */ 3822 return; 3823 3824 /* sanity check */ 3825 if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) { 3826 IPW_ERROR("Too many chunks: %i\n", 3827 le32_to_cpu(bd->u.data.num_chunks)); 3828 /** @todo issue fatal error, it is quite serious situation */ 3829 return; 3830 } 3831 3832 /* unmap chunks if any */ 3833 for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) { 3834 pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]), 3835 le16_to_cpu(bd->u.data.chunk_len[i]), 3836 PCI_DMA_TODEVICE); 3837 if (txq->txb[txq->q.last_used]) { 3838 libipw_txb_free(txq->txb[txq->q.last_used]); 3839 txq->txb[txq->q.last_used] = NULL; 3840 } 3841 } 3842} 3843 3844/** 3845 * Deallocate DMA queue. 3846 * 3847 * Empty queue by removing and destroying all BD's. 3848 * Free all buffers. 3849 * 3850 * @param dev 3851 * @param q 3852 */ 3853static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq) 3854{ 3855 struct clx2_queue *q = &txq->q; 3856 struct pci_dev *dev = priv->pci_dev; 3857 3858 if (q->n_bd == 0) 3859 return; 3860 3861 /* first, empty all BD's */ 3862 for (; q->first_empty != q->last_used; 3863 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { 3864 ipw_queue_tx_free_tfd(priv, txq); 3865 } 3866 3867 /* free buffers belonging to queue itself */ 3868 pci_free_consistent(dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd, 3869 q->dma_addr); 3870 kfree(txq->txb); 3871 3872 /* 0 fill whole structure */ 3873 memset(txq, 0, sizeof(*txq)); 3874} 3875 3876/** 3877 * Destroy all DMA queues and structures 3878 * 3879 * @param priv 3880 */ 3881static void ipw_tx_queue_free(struct ipw_priv *priv) 3882{ 3883 /* Tx CMD queue */ 3884 ipw_queue_tx_free(priv, &priv->txq_cmd); 3885 3886 /* Tx queues */ 3887 ipw_queue_tx_free(priv, &priv->txq[0]); 3888 ipw_queue_tx_free(priv, &priv->txq[1]); 3889 ipw_queue_tx_free(priv, &priv->txq[2]); 3890 ipw_queue_tx_free(priv, &priv->txq[3]); 3891} 3892 3893static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid) 3894{ 3895 /* First 3 bytes are manufacturer */ 3896 bssid[0] = priv->mac_addr[0]; 3897 bssid[1] = priv->mac_addr[1]; 3898 bssid[2] = priv->mac_addr[2]; 3899 3900 /* Last bytes are random */ 3901 get_random_bytes(&bssid[3], ETH_ALEN - 3); 3902 3903 bssid[0] &= 0xfe; /* clear multicast bit */ 3904 bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */ 3905} 3906 3907static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid) 3908{ 3909 struct ipw_station_entry entry; 3910 int i; 3911 3912 for (i = 0; i < priv->num_stations; i++) { 3913 if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) { 3914 /* Another node is active in network */ 3915 priv->missed_adhoc_beacons = 0; 3916 if (!(priv->config & CFG_STATIC_CHANNEL)) 3917 /* when other nodes drop out, we drop out */ 3918 priv->config &= ~CFG_ADHOC_PERSIST; 3919 3920 return i; 3921 } 3922 } 3923 3924 if (i == MAX_STATIONS) 3925 return IPW_INVALID_STATION; 3926 3927 IPW_DEBUG_SCAN("Adding AdHoc station: %pM\n", bssid); 3928 3929 entry.reserved = 0; 3930 entry.support_mode = 0; 3931 memcpy(entry.mac_addr, bssid, ETH_ALEN); 3932 memcpy(priv->stations[i], bssid, ETH_ALEN); 3933 ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry), 3934 &entry, sizeof(entry)); 3935 priv->num_stations++; 3936 3937 return i; 3938} 3939 3940static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid) 3941{ 3942 int i; 3943 3944 for (i = 0; i < priv->num_stations; i++) 3945 if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) 3946 return i; 3947 3948 return IPW_INVALID_STATION; 3949} 3950 3951static void ipw_send_disassociate(struct ipw_priv *priv, int quiet) 3952{ 3953 int err; 3954 3955 if (priv->status & STATUS_ASSOCIATING) { 3956 IPW_DEBUG_ASSOC("Disassociating while associating.\n"); 3957 schedule_work(&priv->disassociate); 3958 return; 3959 } 3960 3961 if (!(priv->status & STATUS_ASSOCIATED)) { 3962 IPW_DEBUG_ASSOC("Disassociating while not associated.\n"); 3963 return; 3964 } 3965 3966 IPW_DEBUG_ASSOC("Disassocation attempt from %pM " 3967 "on channel %d.\n", 3968 priv->assoc_request.bssid, 3969 priv->assoc_request.channel); 3970 3971 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED); 3972 priv->status |= STATUS_DISASSOCIATING; 3973 3974 if (quiet) 3975 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET; 3976 else 3977 priv->assoc_request.assoc_type = HC_DISASSOCIATE; 3978 3979 err = ipw_send_associate(priv, &priv->assoc_request); 3980 if (err) { 3981 IPW_DEBUG_HC("Attempt to send [dis]associate command " 3982 "failed.\n"); 3983 return; 3984 } 3985 3986} 3987 3988static int ipw_disassociate(void *data) 3989{ 3990 struct ipw_priv *priv = data; 3991 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) 3992 return 0; 3993 ipw_send_disassociate(data, 0); 3994 netif_carrier_off(priv->net_dev); 3995 return 1; 3996} 3997 3998static void ipw_bg_disassociate(struct work_struct *work) 3999{ 4000 struct ipw_priv *priv = 4001 container_of(work, struct ipw_priv, disassociate); 4002 mutex_lock(&priv->mutex); 4003 ipw_disassociate(priv); 4004 mutex_unlock(&priv->mutex); 4005} 4006 4007static void ipw_system_config(struct work_struct *work) 4008{ 4009 struct ipw_priv *priv = 4010 container_of(work, struct ipw_priv, system_config); 4011 4012#ifdef CONFIG_IPW2200_PROMISCUOUS 4013 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) { 4014 priv->sys_config.accept_all_data_frames = 1; 4015 priv->sys_config.accept_non_directed_frames = 1; 4016 priv->sys_config.accept_all_mgmt_bcpr = 1; 4017 priv->sys_config.accept_all_mgmt_frames = 1; 4018 } 4019#endif 4020 4021 ipw_send_system_config(priv); 4022} 4023 4024struct ipw_status_code { 4025 u16 status; 4026 const char *reason; 4027}; 4028 4029static const struct ipw_status_code ipw_status_codes[] = { 4030 {0x00, "Successful"}, 4031 {0x01, "Unspecified failure"}, 4032 {0x0A, "Cannot support all requested capabilities in the " 4033 "Capability information field"}, 4034 {0x0B, "Reassociation denied due to inability to confirm that " 4035 "association exists"}, 4036 {0x0C, "Association denied due to reason outside the scope of this " 4037 "standard"}, 4038 {0x0D, 4039 "Responding station does not support the specified authentication " 4040 "algorithm"}, 4041 {0x0E, 4042 "Received an Authentication frame with authentication sequence " 4043 "transaction sequence number out of expected sequence"}, 4044 {0x0F, "Authentication rejected because of challenge failure"}, 4045 {0x10, "Authentication rejected due to timeout waiting for next " 4046 "frame in sequence"}, 4047 {0x11, "Association denied because AP is unable to handle additional " 4048 "associated stations"}, 4049 {0x12, 4050 "Association denied due to requesting station not supporting all " 4051 "of the datarates in the BSSBasicServiceSet Parameter"}, 4052 {0x13, 4053 "Association denied due to requesting station not supporting " 4054 "short preamble operation"}, 4055 {0x14, 4056 "Association denied due to requesting station not supporting " 4057 "PBCC encoding"}, 4058 {0x15, 4059 "Association denied due to requesting station not supporting " 4060 "channel agility"}, 4061 {0x19, 4062 "Association denied due to requesting station not supporting " 4063 "short slot operation"}, 4064 {0x1A, 4065 "Association denied due to requesting station not supporting " 4066 "DSSS-OFDM operation"}, 4067 {0x28, "Invalid Information Element"}, 4068 {0x29, "Group Cipher is not valid"}, 4069 {0x2A, "Pairwise Cipher is not valid"}, 4070 {0x2B, "AKMP is not valid"}, 4071 {0x2C, "Unsupported RSN IE version"}, 4072 {0x2D, "Invalid RSN IE Capabilities"}, 4073 {0x2E, "Cipher suite is rejected per security policy"}, 4074}; 4075 4076static const char *ipw_get_status_code(u16 status) 4077{ 4078 int i; 4079 for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++) 4080 if (ipw_status_codes[i].status == (status & 0xff)) 4081 return ipw_status_codes[i].reason; 4082 return "Unknown status value."; 4083} 4084 4085static void inline average_init(struct average *avg) 4086{ 4087 memset(avg, 0, sizeof(*avg)); 4088} 4089 4090#define DEPTH_RSSI 8 4091#define DEPTH_NOISE 16 4092static s16 exponential_average(s16 prev_avg, s16 val, u8 depth) 4093{ 4094 return ((depth-1)*prev_avg + val)/depth; 4095} 4096 4097static void average_add(struct average *avg, s16 val) 4098{ 4099 avg->sum -= avg->entries[avg->pos]; 4100 avg->sum += val; 4101 avg->entries[avg->pos++] = val; 4102 if (unlikely(avg->pos == AVG_ENTRIES)) { 4103 avg->init = 1; 4104 avg->pos = 0; 4105 } 4106} 4107 4108static s16 average_value(struct average *avg) 4109{ 4110 if (!unlikely(avg->init)) { 4111 if (avg->pos) 4112 return avg->sum / avg->pos; 4113 return 0; 4114 } 4115 4116 return avg->sum / AVG_ENTRIES; 4117} 4118 4119static void ipw_reset_stats(struct ipw_priv *priv) 4120{ 4121 u32 len = sizeof(u32); 4122 4123 priv->quality = 0; 4124 4125 average_init(&priv->average_missed_beacons); 4126 priv->exp_avg_rssi = -60; 4127 priv->exp_avg_noise = -85 + 0x100; 4128 4129 priv->last_rate = 0; 4130 priv->last_missed_beacons = 0; 4131 priv->last_rx_packets = 0; 4132 priv->last_tx_packets = 0; 4133 priv->last_tx_failures = 0; 4134 4135 /* Firmware managed, reset only when NIC is restarted, so we have to 4136 * normalize on the current value */ 4137 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, 4138 &priv->last_rx_err, &len); 4139 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, 4140 &priv->last_tx_failures, &len); 4141 4142 /* Driver managed, reset with each association */ 4143 priv->missed_adhoc_beacons = 0; 4144 priv->missed_beacons = 0; 4145 priv->tx_packets = 0; 4146 priv->rx_packets = 0; 4147 4148} 4149 4150static u32 ipw_get_max_rate(struct ipw_priv *priv) 4151{ 4152 u32 i = 0x80000000; 4153 u32 mask = priv->rates_mask; 4154 /* If currently associated in B mode, restrict the maximum 4155 * rate match to B rates */ 4156 if (priv->assoc_request.ieee_mode == IPW_B_MODE) 4157 mask &= LIBIPW_CCK_RATES_MASK; 4158 4159 /* TODO: Verify that the rate is supported by the current rates 4160 * list. */ 4161 4162 while (i && !(mask & i)) 4163 i >>= 1; 4164 switch (i) { 4165 case LIBIPW_CCK_RATE_1MB_MASK: 4166 return 1000000; 4167 case LIBIPW_CCK_RATE_2MB_MASK: 4168 return 2000000; 4169 case LIBIPW_CCK_RATE_5MB_MASK: 4170 return 5500000; 4171 case LIBIPW_OFDM_RATE_6MB_MASK: 4172 return 6000000; 4173 case LIBIPW_OFDM_RATE_9MB_MASK: 4174 return 9000000; 4175 case LIBIPW_CCK_RATE_11MB_MASK: 4176 return 11000000; 4177 case LIBIPW_OFDM_RATE_12MB_MASK: 4178 return 12000000; 4179 case LIBIPW_OFDM_RATE_18MB_MASK: 4180 return 18000000; 4181 case LIBIPW_OFDM_RATE_24MB_MASK: 4182 return 24000000; 4183 case LIBIPW_OFDM_RATE_36MB_MASK: 4184 return 36000000; 4185 case LIBIPW_OFDM_RATE_48MB_MASK: 4186 return 48000000; 4187 case LIBIPW_OFDM_RATE_54MB_MASK: 4188 return 54000000; 4189 } 4190 4191 if (priv->ieee->mode == IEEE_B) 4192 return 11000000; 4193 else 4194 return 54000000; 4195} 4196 4197static u32 ipw_get_current_rate(struct ipw_priv *priv) 4198{ 4199 u32 rate, len = sizeof(rate); 4200 int err; 4201 4202 if (!(priv->status & STATUS_ASSOCIATED)) 4203 return 0; 4204 4205 if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) { 4206 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate, 4207 &len); 4208 if (err) { 4209 IPW_DEBUG_INFO("failed querying ordinals.\n"); 4210 return 0; 4211 } 4212 } else 4213 return ipw_get_max_rate(priv); 4214 4215 switch (rate) { 4216 case IPW_TX_RATE_1MB: 4217 return 1000000; 4218 case IPW_TX_RATE_2MB: 4219 return 2000000; 4220 case IPW_TX_RATE_5MB: 4221 return 5500000; 4222 case IPW_TX_RATE_6MB: 4223 return 6000000; 4224 case IPW_TX_RATE_9MB: 4225 return 9000000; 4226 case IPW_TX_RATE_11MB: 4227 return 11000000; 4228 case IPW_TX_RATE_12MB: 4229 return 12000000; 4230 case IPW_TX_RATE_18MB: 4231 return 18000000; 4232 case IPW_TX_RATE_24MB: 4233 return 24000000; 4234 case IPW_TX_RATE_36MB: 4235 return 36000000; 4236 case IPW_TX_RATE_48MB: 4237 return 48000000; 4238 case IPW_TX_RATE_54MB: 4239 return 54000000; 4240 } 4241 4242 return 0; 4243} 4244 4245#define IPW_STATS_INTERVAL (2 * HZ) 4246static void ipw_gather_stats(struct ipw_priv *priv) 4247{ 4248 u32 rx_err, rx_err_delta, rx_packets_delta; 4249 u32 tx_failures, tx_failures_delta, tx_packets_delta; 4250 u32 missed_beacons_percent, missed_beacons_delta; 4251 u32 quality = 0; 4252 u32 len = sizeof(u32); 4253 s16 rssi; 4254 u32 beacon_quality, signal_quality, tx_quality, rx_quality, 4255 rate_quality; 4256 u32 max_rate; 4257 4258 if (!(priv->status & STATUS_ASSOCIATED)) { 4259 priv->quality = 0; 4260 return; 4261 } 4262 4263 /* Update the statistics */ 4264 ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS, 4265 &priv->missed_beacons, &len); 4266 missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons; 4267 priv->last_missed_beacons = priv->missed_beacons; 4268 if (priv->assoc_request.beacon_interval) { 4269 missed_beacons_percent = missed_beacons_delta * 4270 (HZ * le16_to_cpu(priv->assoc_request.beacon_interval)) / 4271 (IPW_STATS_INTERVAL * 10); 4272 } else { 4273 missed_beacons_percent = 0; 4274 } 4275 average_add(&priv->average_missed_beacons, missed_beacons_percent); 4276 4277 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len); 4278 rx_err_delta = rx_err - priv->last_rx_err; 4279 priv->last_rx_err = rx_err; 4280 4281 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len); 4282 tx_failures_delta = tx_failures - priv->last_tx_failures; 4283 priv->last_tx_failures = tx_failures; 4284 4285 rx_packets_delta = priv->rx_packets - priv->last_rx_packets; 4286 priv->last_rx_packets = priv->rx_packets; 4287 4288 tx_packets_delta = priv->tx_packets - priv->last_tx_packets; 4289 priv->last_tx_packets = priv->tx_packets; 4290 4291 /* Calculate quality based on the following: 4292 * 4293 * Missed beacon: 100% = 0, 0% = 70% missed 4294 * Rate: 60% = 1Mbs, 100% = Max 4295 * Rx and Tx errors represent a straight % of total Rx/Tx 4296 * RSSI: 100% = > -50, 0% = < -80 4297 * Rx errors: 100% = 0, 0% = 50% missed 4298 * 4299 * The lowest computed quality is used. 4300 * 4301 */ 4302#define BEACON_THRESHOLD 5 4303 beacon_quality = 100 - missed_beacons_percent; 4304 if (beacon_quality < BEACON_THRESHOLD) 4305 beacon_quality = 0; 4306 else 4307 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 / 4308 (100 - BEACON_THRESHOLD); 4309 IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n", 4310 beacon_quality, missed_beacons_percent); 4311 4312 priv->last_rate = ipw_get_current_rate(priv); 4313 max_rate = ipw_get_max_rate(priv); 4314 rate_quality = priv->last_rate * 40 / max_rate + 60; 4315 IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n", 4316 rate_quality, priv->last_rate / 1000000); 4317 4318 if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta) 4319 rx_quality = 100 - (rx_err_delta * 100) / 4320 (rx_packets_delta + rx_err_delta); 4321 else 4322 rx_quality = 100; 4323 IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n", 4324 rx_quality, rx_err_delta, rx_packets_delta); 4325 4326 if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta) 4327 tx_quality = 100 - (tx_failures_delta * 100) / 4328 (tx_packets_delta + tx_failures_delta); 4329 else 4330 tx_quality = 100; 4331 IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n", 4332 tx_quality, tx_failures_delta, tx_packets_delta); 4333 4334 rssi = priv->exp_avg_rssi; 4335 signal_quality = 4336 (100 * 4337 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * 4338 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) - 4339 (priv->ieee->perfect_rssi - rssi) * 4340 (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) + 4341 62 * (priv->ieee->perfect_rssi - rssi))) / 4342 ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * 4343 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi)); 4344 if (signal_quality > 100) 4345 signal_quality = 100; 4346 else if (signal_quality < 1) 4347 signal_quality = 0; 4348 4349 IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n", 4350 signal_quality, rssi); 4351 4352 quality = min(rx_quality, signal_quality); 4353 quality = min(tx_quality, quality); 4354 quality = min(rate_quality, quality); 4355 quality = min(beacon_quality, quality); 4356 if (quality == beacon_quality) 4357 IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n", 4358 quality); 4359 if (quality == rate_quality) 4360 IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n", 4361 quality); 4362 if (quality == tx_quality) 4363 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n", 4364 quality); 4365 if (quality == rx_quality) 4366 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n", 4367 quality); 4368 if (quality == signal_quality) 4369 IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n", 4370 quality); 4371 4372 priv->quality = quality; 4373 4374 schedule_delayed_work(&priv->gather_stats, IPW_STATS_INTERVAL); 4375} 4376 4377static void ipw_bg_gather_stats(struct work_struct *work) 4378{ 4379 struct ipw_priv *priv = 4380 container_of(work, struct ipw_priv, gather_stats.work); 4381 mutex_lock(&priv->mutex); 4382 ipw_gather_stats(priv); 4383 mutex_unlock(&priv->mutex); 4384} 4385 4386/* Missed beacon behavior: 4387 * 1st missed -> roaming_threshold, just wait, don't do any scan/roam. 4388 * roaming_threshold -> disassociate_threshold, scan and roam for better signal. 4389 * Above disassociate threshold, give up and stop scanning. 4390 * Roaming is disabled if disassociate_threshold <= roaming_threshold */ 4391static void ipw_handle_missed_beacon(struct ipw_priv *priv, 4392 int missed_count) 4393{ 4394 priv->notif_missed_beacons = missed_count; 4395 4396 if (missed_count > priv->disassociate_threshold && 4397 priv->status & STATUS_ASSOCIATED) { 4398 /* If associated and we've hit the missed 4399 * beacon threshold, disassociate, turn 4400 * off roaming, and abort any active scans */ 4401 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | 4402 IPW_DL_STATE | IPW_DL_ASSOC, 4403 "Missed beacon: %d - disassociate\n", missed_count); 4404 priv->status &= ~STATUS_ROAMING; 4405 if (priv->status & STATUS_SCANNING) { 4406 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | 4407 IPW_DL_STATE, 4408 "Aborting scan with missed beacon.\n"); 4409 schedule_work(&priv->abort_scan); 4410 } 4411 4412 schedule_work(&priv->disassociate); 4413 return; 4414 } 4415 4416 if (priv->status & STATUS_ROAMING) { 4417 /* If we are currently roaming, then just 4418 * print a debug statement... */ 4419 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, 4420 "Missed beacon: %d - roam in progress\n", 4421 missed_count); 4422 return; 4423 } 4424 4425 if (roaming && 4426 (missed_count > priv->roaming_threshold && 4427 missed_count <= priv->disassociate_threshold)) { 4428 /* If we are not already roaming, set the ROAM 4429 * bit in the status and kick off a scan. 4430 * This can happen several times before we reach 4431 * disassociate_threshold. */ 4432 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, 4433 "Missed beacon: %d - initiate " 4434 "roaming\n", missed_count); 4435 if (!(priv->status & STATUS_ROAMING)) { 4436 priv->status |= STATUS_ROAMING; 4437 if (!(priv->status & STATUS_SCANNING)) 4438 schedule_delayed_work(&priv->request_scan, 0); 4439 } 4440 return; 4441 } 4442 4443 if (priv->status & STATUS_SCANNING && 4444 missed_count > IPW_MB_SCAN_CANCEL_THRESHOLD) { 4445 /* Stop scan to keep fw from getting 4446 * stuck (only if we aren't roaming -- 4447 * otherwise we'll never scan more than 2 or 3 4448 * channels..) */ 4449 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE, 4450 "Aborting scan with missed beacon.\n"); 4451 schedule_work(&priv->abort_scan); 4452 } 4453 4454 IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count); 4455} 4456 4457static void ipw_scan_event(struct work_struct *work) 4458{ 4459 union iwreq_data wrqu; 4460 4461 struct ipw_priv *priv = 4462 container_of(work, struct ipw_priv, scan_event.work); 4463 4464 wrqu.data.length = 0; 4465 wrqu.data.flags = 0; 4466 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL); 4467} 4468 4469static void handle_scan_event(struct ipw_priv *priv) 4470{ 4471 /* Only userspace-requested scan completion events go out immediately */ 4472 if (!priv->user_requested_scan) { 4473 if (!delayed_work_pending(&priv->scan_event)) 4474 schedule_delayed_work(&priv->scan_event, 4475 round_jiffies_relative(msecs_to_jiffies(4000))); 4476 } else { 4477 union iwreq_data wrqu; 4478 4479 priv->user_requested_scan = 0; 4480 cancel_delayed_work(&priv->scan_event); 4481 4482 wrqu.data.length = 0; 4483 wrqu.data.flags = 0; 4484 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL); 4485 } 4486} 4487 4488/** 4489 * Handle host notification packet. 4490 * Called from interrupt routine 4491 */ 4492static void ipw_rx_notification(struct ipw_priv *priv, 4493 struct ipw_rx_notification *notif) 4494{ 4495 DECLARE_SSID_BUF(ssid); 4496 u16 size = le16_to_cpu(notif->size); 4497 4498 IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, size); 4499 4500 switch (notif->subtype) { 4501 case HOST_NOTIFICATION_STATUS_ASSOCIATED:{ 4502 struct notif_association *assoc = ¬if->u.assoc; 4503 4504 switch (assoc->state) { 4505 case CMAS_ASSOCIATED:{ 4506 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4507 IPW_DL_ASSOC, 4508 "associated: '%s' %pM\n", 4509 print_ssid(ssid, priv->essid, 4510 priv->essid_len), 4511 priv->bssid); 4512 4513 switch (priv->ieee->iw_mode) { 4514 case IW_MODE_INFRA: 4515 memcpy(priv->ieee->bssid, 4516 priv->bssid, ETH_ALEN); 4517 break; 4518 4519 case IW_MODE_ADHOC: 4520 memcpy(priv->ieee->bssid, 4521 priv->bssid, ETH_ALEN); 4522 4523 /* clear out the station table */ 4524 priv->num_stations = 0; 4525 4526 IPW_DEBUG_ASSOC 4527 ("queueing adhoc check\n"); 4528 schedule_delayed_work( 4529 &priv->adhoc_check, 4530 le16_to_cpu(priv-> 4531 assoc_request. 4532 beacon_interval)); 4533 break; 4534 } 4535 4536 priv->status &= ~STATUS_ASSOCIATING; 4537 priv->status |= STATUS_ASSOCIATED; 4538 schedule_work(&priv->system_config); 4539 4540#ifdef CONFIG_IPW2200_QOS 4541#define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \ 4542 le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_control)) 4543 if ((priv->status & STATUS_AUTH) && 4544 (IPW_GET_PACKET_STYPE(¬if->u.raw) 4545 == IEEE80211_STYPE_ASSOC_RESP)) { 4546 if ((sizeof 4547 (struct 4548 libipw_assoc_response) 4549 <= size) 4550 && (size <= 2314)) { 4551 struct 4552 libipw_rx_stats 4553 stats = { 4554 .len = size - 1, 4555 }; 4556 4557 IPW_DEBUG_QOS 4558 ("QoS Associate " 4559 "size %d\n", size); 4560 libipw_rx_mgt(priv-> 4561 ieee, 4562 (struct 4563 libipw_hdr_4addr 4564 *) 4565 ¬if->u.raw, &stats); 4566 } 4567 } 4568#endif 4569 4570 schedule_work(&priv->link_up); 4571 4572 break; 4573 } 4574 4575 case CMAS_AUTHENTICATED:{ 4576 if (priv-> 4577 status & (STATUS_ASSOCIATED | 4578 STATUS_AUTH)) { 4579 struct notif_authenticate *auth 4580 = ¬if->u.auth; 4581 IPW_DEBUG(IPW_DL_NOTIF | 4582 IPW_DL_STATE | 4583 IPW_DL_ASSOC, 4584 "deauthenticated: '%s' " 4585 "%pM" 4586 ": (0x%04X) - %s\n", 4587 print_ssid(ssid, 4588 priv-> 4589 essid, 4590 priv-> 4591 essid_len), 4592 priv->bssid, 4593 le16_to_cpu(auth->status), 4594 ipw_get_status_code 4595 (le16_to_cpu 4596 (auth->status))); 4597 4598 priv->status &= 4599 ~(STATUS_ASSOCIATING | 4600 STATUS_AUTH | 4601 STATUS_ASSOCIATED); 4602 4603 schedule_work(&priv->link_down); 4604 break; 4605 } 4606 4607 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4608 IPW_DL_ASSOC, 4609 "authenticated: '%s' %pM\n", 4610 print_ssid(ssid, priv->essid, 4611 priv->essid_len), 4612 priv->bssid); 4613 break; 4614 } 4615 4616 case CMAS_INIT:{ 4617 if (priv->status & STATUS_AUTH) { 4618 struct 4619 libipw_assoc_response 4620 *resp; 4621 resp = 4622 (struct 4623 libipw_assoc_response 4624 *)¬if->u.raw; 4625 IPW_DEBUG(IPW_DL_NOTIF | 4626 IPW_DL_STATE | 4627 IPW_DL_ASSOC, 4628 "association failed (0x%04X): %s\n", 4629 le16_to_cpu(resp->status), 4630 ipw_get_status_code 4631 (le16_to_cpu 4632 (resp->status))); 4633 } 4634 4635 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4636 IPW_DL_ASSOC, 4637 "disassociated: '%s' %pM\n", 4638 print_ssid(ssid, priv->essid, 4639 priv->essid_len), 4640 priv->bssid); 4641 4642 priv->status &= 4643 ~(STATUS_DISASSOCIATING | 4644 STATUS_ASSOCIATING | 4645 STATUS_ASSOCIATED | STATUS_AUTH); 4646 if (priv->assoc_network 4647 && (priv->assoc_network-> 4648 capability & 4649 WLAN_CAPABILITY_IBSS)) 4650 ipw_remove_current_network 4651 (priv); 4652 4653 schedule_work(&priv->link_down); 4654 4655 break; 4656 } 4657 4658 case CMAS_RX_ASSOC_RESP: 4659 break; 4660 4661 default: 4662 IPW_ERROR("assoc: unknown (%d)\n", 4663 assoc->state); 4664 break; 4665 } 4666 4667 break; 4668 } 4669 4670 case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{ 4671 struct notif_authenticate *auth = ¬if->u.auth; 4672 switch (auth->state) { 4673 case CMAS_AUTHENTICATED: 4674 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, 4675 "authenticated: '%s' %pM\n", 4676 print_ssid(ssid, priv->essid, 4677 priv->essid_len), 4678 priv->bssid); 4679 priv->status |= STATUS_AUTH; 4680 break; 4681 4682 case CMAS_INIT: 4683 if (priv->status & STATUS_AUTH) { 4684 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4685 IPW_DL_ASSOC, 4686 "authentication failed (0x%04X): %s\n", 4687 le16_to_cpu(auth->status), 4688 ipw_get_status_code(le16_to_cpu 4689 (auth-> 4690 status))); 4691 } 4692 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4693 IPW_DL_ASSOC, 4694 "deauthenticated: '%s' %pM\n", 4695 print_ssid(ssid, priv->essid, 4696 priv->essid_len), 4697 priv->bssid); 4698 4699 priv->status &= ~(STATUS_ASSOCIATING | 4700 STATUS_AUTH | 4701 STATUS_ASSOCIATED); 4702 4703 schedule_work(&priv->link_down); 4704 break; 4705 4706 case CMAS_TX_AUTH_SEQ_1: 4707 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4708 IPW_DL_ASSOC, "AUTH_SEQ_1\n"); 4709 break; 4710 case CMAS_RX_AUTH_SEQ_2: 4711 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4712 IPW_DL_ASSOC, "AUTH_SEQ_2\n"); 4713 break; 4714 case CMAS_AUTH_SEQ_1_PASS: 4715 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4716 IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n"); 4717 break; 4718 case CMAS_AUTH_SEQ_1_FAIL: 4719 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4720 IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n"); 4721 break; 4722 case CMAS_TX_AUTH_SEQ_3: 4723 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4724 IPW_DL_ASSOC, "AUTH_SEQ_3\n"); 4725 break; 4726 case CMAS_RX_AUTH_SEQ_4: 4727 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4728 IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n"); 4729 break; 4730 case CMAS_AUTH_SEQ_2_PASS: 4731 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4732 IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n"); 4733 break; 4734 case CMAS_AUTH_SEQ_2_FAIL: 4735 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4736 IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n"); 4737 break; 4738 case CMAS_TX_ASSOC: 4739 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4740 IPW_DL_ASSOC, "TX_ASSOC\n"); 4741 break; 4742 case CMAS_RX_ASSOC_RESP: 4743 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4744 IPW_DL_ASSOC, "RX_ASSOC_RESP\n"); 4745 4746 break; 4747 case CMAS_ASSOCIATED: 4748 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | 4749 IPW_DL_ASSOC, "ASSOCIATED\n"); 4750 break; 4751 default: 4752 IPW_DEBUG_NOTIF("auth: failure - %d\n", 4753 auth->state); 4754 break; 4755 } 4756 break; 4757 } 4758 4759 case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{ 4760 struct notif_channel_result *x = 4761 ¬if->u.channel_result; 4762 4763 if (size == sizeof(*x)) { 4764 IPW_DEBUG_SCAN("Scan result for channel %d\n", 4765 x->channel_num); 4766 } else { 4767 IPW_DEBUG_SCAN("Scan result of wrong size %d " 4768 "(should be %zd)\n", 4769 size, sizeof(*x)); 4770 } 4771 break; 4772 } 4773 4774 case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{ 4775 struct notif_scan_complete *x = ¬if->u.scan_complete; 4776 if (size == sizeof(*x)) { 4777 IPW_DEBUG_SCAN 4778 ("Scan completed: type %d, %d channels, " 4779 "%d status\n", x->scan_type, 4780 x->num_channels, x->status); 4781 } else { 4782 IPW_ERROR("Scan completed of wrong size %d " 4783 "(should be %zd)\n", 4784 size, sizeof(*x)); 4785 } 4786 4787 priv->status &= 4788 ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); 4789 4790 wake_up_interruptible(&priv->wait_state); 4791 cancel_delayed_work(&priv->scan_check); 4792 4793 if (priv->status & STATUS_EXIT_PENDING) 4794 break; 4795 4796 priv->ieee->scans++; 4797 4798#ifdef CONFIG_IPW2200_MONITOR 4799 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 4800 priv->status |= STATUS_SCAN_FORCED; 4801 schedule_delayed_work(&priv->request_scan, 0); 4802 break; 4803 } 4804 priv->status &= ~STATUS_SCAN_FORCED; 4805#endif /* CONFIG_IPW2200_MONITOR */ 4806 4807 /* Do queued direct scans first */ 4808 if (priv->status & STATUS_DIRECT_SCAN_PENDING) 4809 schedule_delayed_work(&priv->request_direct_scan, 0); 4810 4811 if (!(priv->status & (STATUS_ASSOCIATED | 4812 STATUS_ASSOCIATING | 4813 STATUS_ROAMING | 4814 STATUS_DISASSOCIATING))) 4815 schedule_work(&priv->associate); 4816 else if (priv->status & STATUS_ROAMING) { 4817 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) 4818 /* If a scan completed and we are in roam mode, then 4819 * the scan that completed was the one requested as a 4820 * result of entering roam... so, schedule the 4821 * roam work */ 4822 schedule_work(&priv->roam); 4823 else 4824 /* Don't schedule if we aborted the scan */ 4825 priv->status &= ~STATUS_ROAMING; 4826 } else if (priv->status & STATUS_SCAN_PENDING) 4827 schedule_delayed_work(&priv->request_scan, 0); 4828 else if (priv->config & CFG_BACKGROUND_SCAN 4829 && priv->status & STATUS_ASSOCIATED) 4830 schedule_delayed_work(&priv->request_scan, 4831 round_jiffies_relative(HZ)); 4832 4833 /* Send an empty event to user space. 4834 * We don't send the received data on the event because 4835 * it would require us to do complex transcoding, and 4836 * we want to minimise the work done in the irq handler 4837 * Use a request to extract the data. 4838 * Also, we generate this even for any scan, regardless 4839 * on how the scan was initiated. User space can just 4840 * sync on periodic scan to get fresh data... 4841 * Jean II */ 4842 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) 4843 handle_scan_event(priv); 4844 break; 4845 } 4846 4847 case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{ 4848 struct notif_frag_length *x = ¬if->u.frag_len; 4849 4850 if (size == sizeof(*x)) 4851 IPW_ERROR("Frag length: %d\n", 4852 le16_to_cpu(x->frag_length)); 4853 else 4854 IPW_ERROR("Frag length of wrong size %d " 4855 "(should be %zd)\n", 4856 size, sizeof(*x)); 4857 break; 4858 } 4859 4860 case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{ 4861 struct notif_link_deterioration *x = 4862 ¬if->u.link_deterioration; 4863 4864 if (size == sizeof(*x)) { 4865 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, 4866 "link deterioration: type %d, cnt %d\n", 4867 x->silence_notification_type, 4868 x->silence_count); 4869 memcpy(&priv->last_link_deterioration, x, 4870 sizeof(*x)); 4871 } else { 4872 IPW_ERROR("Link Deterioration of wrong size %d " 4873 "(should be %zd)\n", 4874 size, sizeof(*x)); 4875 } 4876 break; 4877 } 4878 4879 case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{ 4880 IPW_ERROR("Dino config\n"); 4881 if (priv->hcmd 4882 && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG) 4883 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n"); 4884 4885 break; 4886 } 4887 4888 case HOST_NOTIFICATION_STATUS_BEACON_STATE:{ 4889 struct notif_beacon_state *x = ¬if->u.beacon_state; 4890 if (size != sizeof(*x)) { 4891 IPW_ERROR 4892 ("Beacon state of wrong size %d (should " 4893 "be %zd)\n", size, sizeof(*x)); 4894 break; 4895 } 4896 4897 if (le32_to_cpu(x->state) == 4898 HOST_NOTIFICATION_STATUS_BEACON_MISSING) 4899 ipw_handle_missed_beacon(priv, 4900 le32_to_cpu(x-> 4901 number)); 4902 4903 break; 4904 } 4905 4906 case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{ 4907 struct notif_tgi_tx_key *x = ¬if->u.tgi_tx_key; 4908 if (size == sizeof(*x)) { 4909 IPW_ERROR("TGi Tx Key: state 0x%02x sec type " 4910 "0x%02x station %d\n", 4911 x->key_state, x->security_type, 4912 x->station_index); 4913 break; 4914 } 4915 4916 IPW_ERROR 4917 ("TGi Tx Key of wrong size %d (should be %zd)\n", 4918 size, sizeof(*x)); 4919 break; 4920 } 4921 4922 case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{ 4923 struct notif_calibration *x = ¬if->u.calibration; 4924 4925 if (size == sizeof(*x)) { 4926 memcpy(&priv->calib, x, sizeof(*x)); 4927 IPW_DEBUG_INFO("TODO: Calibration\n"); 4928 break; 4929 } 4930 4931 IPW_ERROR 4932 ("Calibration of wrong size %d (should be %zd)\n", 4933 size, sizeof(*x)); 4934 break; 4935 } 4936 4937 case HOST_NOTIFICATION_NOISE_STATS:{ 4938 if (size == sizeof(u32)) { 4939 priv->exp_avg_noise = 4940 exponential_average(priv->exp_avg_noise, 4941 (u8) (le32_to_cpu(notif->u.noise.value) & 0xff), 4942 DEPTH_NOISE); 4943 break; 4944 } 4945 4946 IPW_ERROR 4947 ("Noise stat is wrong size %d (should be %zd)\n", 4948 size, sizeof(u32)); 4949 break; 4950 } 4951 4952 default: 4953 IPW_DEBUG_NOTIF("Unknown notification: " 4954 "subtype=%d,flags=0x%2x,size=%d\n", 4955 notif->subtype, notif->flags, size); 4956 } 4957} 4958 4959/** 4960 * Destroys all DMA structures and initialise them again 4961 * 4962 * @param priv 4963 * @return error code 4964 */ 4965static int ipw_queue_reset(struct ipw_priv *priv) 4966{ 4967 int rc = 0; 4968 /** @todo customize queue sizes */ 4969 int nTx = 64, nTxCmd = 8; 4970 ipw_tx_queue_free(priv); 4971 /* Tx CMD queue */ 4972 rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd, 4973 IPW_TX_CMD_QUEUE_READ_INDEX, 4974 IPW_TX_CMD_QUEUE_WRITE_INDEX, 4975 IPW_TX_CMD_QUEUE_BD_BASE, 4976 IPW_TX_CMD_QUEUE_BD_SIZE); 4977 if (rc) { 4978 IPW_ERROR("Tx Cmd queue init failed\n"); 4979 goto error; 4980 } 4981 /* Tx queue(s) */ 4982 rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx, 4983 IPW_TX_QUEUE_0_READ_INDEX, 4984 IPW_TX_QUEUE_0_WRITE_INDEX, 4985 IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE); 4986 if (rc) { 4987 IPW_ERROR("Tx 0 queue init failed\n"); 4988 goto error; 4989 } 4990 rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx, 4991 IPW_TX_QUEUE_1_READ_INDEX, 4992 IPW_TX_QUEUE_1_WRITE_INDEX, 4993 IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE); 4994 if (rc) { 4995 IPW_ERROR("Tx 1 queue init failed\n"); 4996 goto error; 4997 } 4998 rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx, 4999 IPW_TX_QUEUE_2_READ_INDEX, 5000 IPW_TX_QUEUE_2_WRITE_INDEX, 5001 IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE); 5002 if (rc) { 5003 IPW_ERROR("Tx 2 queue init failed\n"); 5004 goto error; 5005 } 5006 rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx, 5007 IPW_TX_QUEUE_3_READ_INDEX, 5008 IPW_TX_QUEUE_3_WRITE_INDEX, 5009 IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE); 5010 if (rc) { 5011 IPW_ERROR("Tx 3 queue init failed\n"); 5012 goto error; 5013 } 5014 /* statistics */ 5015 priv->rx_bufs_min = 0; 5016 priv->rx_pend_max = 0; 5017 return rc; 5018 5019 error: 5020 ipw_tx_queue_free(priv); 5021 return rc; 5022} 5023 5024/** 5025 * Reclaim Tx queue entries no more used by NIC. 5026 * 5027 * When FW advances 'R' index, all entries between old and 5028 * new 'R' index need to be reclaimed. As result, some free space 5029 * forms. If there is enough free space (> low mark), wake Tx queue. 5030 * 5031 * @note Need to protect against garbage in 'R' index 5032 * @param priv 5033 * @param txq 5034 * @param qindex 5035 * @return Number of used entries remains in the queue 5036 */ 5037static int ipw_queue_tx_reclaim(struct ipw_priv *priv, 5038 struct clx2_tx_queue *txq, int qindex) 5039{ 5040 u32 hw_tail; 5041 int used; 5042 struct clx2_queue *q = &txq->q; 5043 5044 hw_tail = ipw_read32(priv, q->reg_r); 5045 if (hw_tail >= q->n_bd) { 5046 IPW_ERROR 5047 ("Read index for DMA queue (%d) is out of range [0-%d)\n", 5048 hw_tail, q->n_bd); 5049 goto done; 5050 } 5051 for (; q->last_used != hw_tail; 5052 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { 5053 ipw_queue_tx_free_tfd(priv, txq); 5054 priv->tx_packets++; 5055 } 5056 done: 5057 if ((ipw_tx_queue_space(q) > q->low_mark) && 5058 (qindex >= 0)) 5059 netif_wake_queue(priv->net_dev); 5060 used = q->first_empty - q->last_used; 5061 if (used < 0) 5062 used += q->n_bd; 5063 5064 return used; 5065} 5066 5067static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf, 5068 int len, int sync) 5069{ 5070 struct clx2_tx_queue *txq = &priv->txq_cmd; 5071 struct clx2_queue *q = &txq->q; 5072 struct tfd_frame *tfd; 5073 5074 if (ipw_tx_queue_space(q) < (sync ? 1 : 2)) { 5075 IPW_ERROR("No space for Tx\n"); 5076 return -EBUSY; 5077 } 5078 5079 tfd = &txq->bd[q->first_empty]; 5080 txq->txb[q->first_empty] = NULL; 5081 5082 memset(tfd, 0, sizeof(*tfd)); 5083 tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE; 5084 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; 5085 priv->hcmd_seq++; 5086 tfd->u.cmd.index = hcmd; 5087 tfd->u.cmd.length = len; 5088 memcpy(tfd->u.cmd.payload, buf, len); 5089 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); 5090 ipw_write32(priv, q->reg_w, q->first_empty); 5091 _ipw_read32(priv, 0x90); 5092 5093 return 0; 5094} 5095 5096/* 5097 * Rx theory of operation 5098 * 5099 * The host allocates 32 DMA target addresses and passes the host address 5100 * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is 5101 * 0 to 31 5102 * 5103 * Rx Queue Indexes 5104 * The host/firmware share two index registers for managing the Rx buffers. 5105 * 5106 * The READ index maps to the first position that the firmware may be writing 5107 * to -- the driver can read up to (but not including) this position and get 5108 * good data. 5109 * The READ index is managed by the firmware once the card is enabled. 5110 * 5111 * The WRITE index maps to the last position the driver has read from -- the 5112 * position preceding WRITE is the last slot the firmware can place a packet. 5113 * 5114 * The queue is empty (no good data) if WRITE = READ - 1, and is full if 5115 * WRITE = READ. 5116 * 5117 * During initialization the host sets up the READ queue position to the first 5118 * INDEX position, and WRITE to the last (READ - 1 wrapped) 5119 * 5120 * When the firmware places a packet in a buffer it will advance the READ index 5121 * and fire the RX interrupt. The driver can then query the READ index and 5122 * process as many packets as possible, moving the WRITE index forward as it 5123 * resets the Rx queue buffers with new memory. 5124 * 5125 * The management in the driver is as follows: 5126 * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When 5127 * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled 5128 * to replensish the ipw->rxq->rx_free. 5129 * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the 5130 * ipw->rxq is replenished and the READ INDEX is updated (updating the 5131 * 'processed' and 'read' driver indexes as well) 5132 * + A received packet is processed and handed to the kernel network stack, 5133 * detached from the ipw->rxq. The driver 'processed' index is updated. 5134 * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free 5135 * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ 5136 * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there 5137 * were enough free buffers and RX_STALLED is set it is cleared. 5138 * 5139 * 5140 * Driver sequence: 5141 * 5142 * ipw_rx_queue_alloc() Allocates rx_free 5143 * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls 5144 * ipw_rx_queue_restock 5145 * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx 5146 * queue, updates firmware pointers, and updates 5147 * the WRITE index. If insufficient rx_free buffers 5148 * are available, schedules ipw_rx_queue_replenish 5149 * 5150 * -- enable interrupts -- 5151 * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the 5152 * READ INDEX, detaching the SKB from the pool. 5153 * Moves the packet buffer from queue to rx_used. 5154 * Calls ipw_rx_queue_restock to refill any empty 5155 * slots. 5156 * ... 5157 * 5158 */ 5159 5160/* 5161 * If there are slots in the RX queue that need to be restocked, 5162 * and we have free pre-allocated buffers, fill the ranks as much 5163 * as we can pulling from rx_free. 5164 * 5165 * This moves the 'write' index forward to catch up with 'processed', and 5166 * also updates the memory address in the firmware to reference the new 5167 * target buffer. 5168 */ 5169static void ipw_rx_queue_restock(struct ipw_priv *priv) 5170{ 5171 struct ipw_rx_queue *rxq = priv->rxq; 5172 struct list_head *element; 5173 struct ipw_rx_mem_buffer *rxb; 5174 unsigned long flags; 5175 int write; 5176 5177 spin_lock_irqsave(&rxq->lock, flags); 5178 write = rxq->write; 5179 while ((ipw_rx_queue_space(rxq) > 0) && (rxq->free_count)) { 5180 element = rxq->rx_free.next; 5181 rxb = list_entry(element, struct ipw_rx_mem_buffer, list); 5182 list_del(element); 5183 5184 ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE, 5185 rxb->dma_addr); 5186 rxq->queue[rxq->write] = rxb; 5187 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE; 5188 rxq->free_count--; 5189 } 5190 spin_unlock_irqrestore(&rxq->lock, flags); 5191 5192 /* If the pre-allocated buffer pool is dropping low, schedule to 5193 * refill it */ 5194 if (rxq->free_count <= RX_LOW_WATERMARK) 5195 schedule_work(&priv->rx_replenish); 5196 5197 /* If we've added more space for the firmware to place data, tell it */ 5198 if (write != rxq->write) 5199 ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write); 5200} 5201 5202/* 5203 * Move all used packet from rx_used to rx_free, allocating a new SKB for each. 5204 * Also restock the Rx queue via ipw_rx_queue_restock. 5205 * 5206 * This is called as a scheduled work item (except for during intialization) 5207 */ 5208static void ipw_rx_queue_replenish(void *data) 5209{ 5210 struct ipw_priv *priv = data; 5211 struct ipw_rx_queue *rxq = priv->rxq; 5212 struct list_head *element; 5213 struct ipw_rx_mem_buffer *rxb; 5214 unsigned long flags; 5215 5216 spin_lock_irqsave(&rxq->lock, flags); 5217 while (!list_empty(&rxq->rx_used)) { 5218 element = rxq->rx_used.next; 5219 rxb = list_entry(element, struct ipw_rx_mem_buffer, list); 5220 rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC); 5221 if (!rxb->skb) { 5222 printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n", 5223 priv->net_dev->name); 5224 /* We don't reschedule replenish work here -- we will 5225 * call the restock method and if it still needs 5226 * more buffers it will schedule replenish */ 5227 break; 5228 } 5229 list_del(element); 5230 5231 rxb->dma_addr = 5232 pci_map_single(priv->pci_dev, rxb->skb->data, 5233 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); 5234 5235 list_add_tail(&rxb->list, &rxq->rx_free); 5236 rxq->free_count++; 5237 } 5238 spin_unlock_irqrestore(&rxq->lock, flags); 5239 5240 ipw_rx_queue_restock(priv); 5241} 5242 5243static void ipw_bg_rx_queue_replenish(struct work_struct *work) 5244{ 5245 struct ipw_priv *priv = 5246 container_of(work, struct ipw_priv, rx_replenish); 5247 mutex_lock(&priv->mutex); 5248 ipw_rx_queue_replenish(priv); 5249 mutex_unlock(&priv->mutex); 5250} 5251 5252/* Assumes that the skb field of the buffers in 'pool' is kept accurate. 5253 * If an SKB has been detached, the POOL needs to have its SKB set to NULL 5254 * This free routine walks the list of POOL entries and if SKB is set to 5255 * non NULL it is unmapped and freed 5256 */ 5257static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq) 5258{ 5259 int i; 5260 5261 if (!rxq) 5262 return; 5263 5264 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { 5265 if (rxq->pool[i].skb != NULL) { 5266 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr, 5267 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); 5268 dev_kfree_skb(rxq->pool[i].skb); 5269 } 5270 } 5271 5272 kfree(rxq); 5273} 5274 5275static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv) 5276{ 5277 struct ipw_rx_queue *rxq; 5278 int i; 5279 5280 rxq = kzalloc(sizeof(*rxq), GFP_KERNEL); 5281 if (unlikely(!rxq)) { 5282 IPW_ERROR("memory allocation failed\n"); 5283 return NULL; 5284 } 5285 spin_lock_init(&rxq->lock); 5286 INIT_LIST_HEAD(&rxq->rx_free); 5287 INIT_LIST_HEAD(&rxq->rx_used); 5288 5289 /* Fill the rx_used queue with _all_ of the Rx buffers */ 5290 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) 5291 list_add_tail(&rxq->pool[i].list, &rxq->rx_used); 5292 5293 /* Set us so that we have processed and used all buffers, but have 5294 * not restocked the Rx queue with fresh buffers */ 5295 rxq->read = rxq->write = 0; 5296 rxq->free_count = 0; 5297 5298 return rxq; 5299} 5300 5301static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate) 5302{ 5303 rate &= ~LIBIPW_BASIC_RATE_MASK; 5304 if (ieee_mode == IEEE_A) { 5305 switch (rate) { 5306 case LIBIPW_OFDM_RATE_6MB: 5307 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? 5308 1 : 0; 5309 case LIBIPW_OFDM_RATE_9MB: 5310 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? 5311 1 : 0; 5312 case LIBIPW_OFDM_RATE_12MB: 5313 return priv-> 5314 rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0; 5315 case LIBIPW_OFDM_RATE_18MB: 5316 return priv-> 5317 rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0; 5318 case LIBIPW_OFDM_RATE_24MB: 5319 return priv-> 5320 rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0; 5321 case LIBIPW_OFDM_RATE_36MB: 5322 return priv-> 5323 rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0; 5324 case LIBIPW_OFDM_RATE_48MB: 5325 return priv-> 5326 rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0; 5327 case LIBIPW_OFDM_RATE_54MB: 5328 return priv-> 5329 rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0; 5330 default: 5331 return 0; 5332 } 5333 } 5334 5335 /* B and G mixed */ 5336 switch (rate) { 5337 case LIBIPW_CCK_RATE_1MB: 5338 return priv->rates_mask & LIBIPW_CCK_RATE_1MB_MASK ? 1 : 0; 5339 case LIBIPW_CCK_RATE_2MB: 5340 return priv->rates_mask & LIBIPW_CCK_RATE_2MB_MASK ? 1 : 0; 5341 case LIBIPW_CCK_RATE_5MB: 5342 return priv->rates_mask & LIBIPW_CCK_RATE_5MB_MASK ? 1 : 0; 5343 case LIBIPW_CCK_RATE_11MB: 5344 return priv->rates_mask & LIBIPW_CCK_RATE_11MB_MASK ? 1 : 0; 5345 } 5346 5347 /* If we are limited to B modulations, bail at this point */ 5348 if (ieee_mode == IEEE_B) 5349 return 0; 5350 5351 /* G */ 5352 switch (rate) { 5353 case LIBIPW_OFDM_RATE_6MB: 5354 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? 1 : 0; 5355 case LIBIPW_OFDM_RATE_9MB: 5356 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? 1 : 0; 5357 case LIBIPW_OFDM_RATE_12MB: 5358 return priv->rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0; 5359 case LIBIPW_OFDM_RATE_18MB: 5360 return priv->rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0; 5361 case LIBIPW_OFDM_RATE_24MB: 5362 return priv->rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0; 5363 case LIBIPW_OFDM_RATE_36MB: 5364 return priv->rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0; 5365 case LIBIPW_OFDM_RATE_48MB: 5366 return priv->rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0; 5367 case LIBIPW_OFDM_RATE_54MB: 5368 return priv->rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0; 5369 } 5370 5371 return 0; 5372} 5373 5374static int ipw_compatible_rates(struct ipw_priv *priv, 5375 const struct libipw_network *network, 5376 struct ipw_supported_rates *rates) 5377{ 5378 int num_rates, i; 5379 5380 memset(rates, 0, sizeof(*rates)); 5381 num_rates = min(network->rates_len, (u8) IPW_MAX_RATES); 5382 rates->num_rates = 0; 5383 for (i = 0; i < num_rates; i++) { 5384 if (!ipw_is_rate_in_mask(priv, network->mode, 5385 network->rates[i])) { 5386 5387 if (network->rates[i] & LIBIPW_BASIC_RATE_MASK) { 5388 IPW_DEBUG_SCAN("Adding masked mandatory " 5389 "rate %02X\n", 5390 network->rates[i]); 5391 rates->supported_rates[rates->num_rates++] = 5392 network->rates[i]; 5393 continue; 5394 } 5395 5396 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", 5397 network->rates[i], priv->rates_mask); 5398 continue; 5399 } 5400 5401 rates->supported_rates[rates->num_rates++] = network->rates[i]; 5402 } 5403 5404 num_rates = min(network->rates_ex_len, 5405 (u8) (IPW_MAX_RATES - num_rates)); 5406 for (i = 0; i < num_rates; i++) { 5407 if (!ipw_is_rate_in_mask(priv, network->mode, 5408 network->rates_ex[i])) { 5409 if (network->rates_ex[i] & LIBIPW_BASIC_RATE_MASK) { 5410 IPW_DEBUG_SCAN("Adding masked mandatory " 5411 "rate %02X\n", 5412 network->rates_ex[i]); 5413 rates->supported_rates[rates->num_rates++] = 5414 network->rates[i]; 5415 continue; 5416 } 5417 5418 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", 5419 network->rates_ex[i], priv->rates_mask); 5420 continue; 5421 } 5422 5423 rates->supported_rates[rates->num_rates++] = 5424 network->rates_ex[i]; 5425 } 5426 5427 return 1; 5428} 5429 5430static void ipw_copy_rates(struct ipw_supported_rates *dest, 5431 const struct ipw_supported_rates *src) 5432{ 5433 u8 i; 5434 for (i = 0; i < src->num_rates; i++) 5435 dest->supported_rates[i] = src->supported_rates[i]; 5436 dest->num_rates = src->num_rates; 5437} 5438 5439/* TODO: Look at sniffed packets in the air to determine if the basic rate 5440 * mask should ever be used -- right now all callers to add the scan rates are 5441 * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */ 5442static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates, 5443 u8 modulation, u32 rate_mask) 5444{ 5445 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ? 5446 LIBIPW_BASIC_RATE_MASK : 0; 5447 5448 if (rate_mask & LIBIPW_CCK_RATE_1MB_MASK) 5449 rates->supported_rates[rates->num_rates++] = 5450 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_1MB; 5451 5452 if (rate_mask & LIBIPW_CCK_RATE_2MB_MASK) 5453 rates->supported_rates[rates->num_rates++] = 5454 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_2MB; 5455 5456 if (rate_mask & LIBIPW_CCK_RATE_5MB_MASK) 5457 rates->supported_rates[rates->num_rates++] = basic_mask | 5458 LIBIPW_CCK_RATE_5MB; 5459 5460 if (rate_mask & LIBIPW_CCK_RATE_11MB_MASK) 5461 rates->supported_rates[rates->num_rates++] = basic_mask | 5462 LIBIPW_CCK_RATE_11MB; 5463} 5464 5465static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates, 5466 u8 modulation, u32 rate_mask) 5467{ 5468 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ? 5469 LIBIPW_BASIC_RATE_MASK : 0; 5470 5471 if (rate_mask & LIBIPW_OFDM_RATE_6MB_MASK) 5472 rates->supported_rates[rates->num_rates++] = basic_mask | 5473 LIBIPW_OFDM_RATE_6MB; 5474 5475 if (rate_mask & LIBIPW_OFDM_RATE_9MB_MASK) 5476 rates->supported_rates[rates->num_rates++] = 5477 LIBIPW_OFDM_RATE_9MB; 5478 5479 if (rate_mask & LIBIPW_OFDM_RATE_12MB_MASK) 5480 rates->supported_rates[rates->num_rates++] = basic_mask | 5481 LIBIPW_OFDM_RATE_12MB; 5482 5483 if (rate_mask & LIBIPW_OFDM_RATE_18MB_MASK) 5484 rates->supported_rates[rates->num_rates++] = 5485 LIBIPW_OFDM_RATE_18MB; 5486 5487 if (rate_mask & LIBIPW_OFDM_RATE_24MB_MASK) 5488 rates->supported_rates[rates->num_rates++] = basic_mask | 5489 LIBIPW_OFDM_RATE_24MB; 5490 5491 if (rate_mask & LIBIPW_OFDM_RATE_36MB_MASK) 5492 rates->supported_rates[rates->num_rates++] = 5493 LIBIPW_OFDM_RATE_36MB; 5494 5495 if (rate_mask & LIBIPW_OFDM_RATE_48MB_MASK) 5496 rates->supported_rates[rates->num_rates++] = 5497 LIBIPW_OFDM_RATE_48MB; 5498 5499 if (rate_mask & LIBIPW_OFDM_RATE_54MB_MASK) 5500 rates->supported_rates[rates->num_rates++] = 5501 LIBIPW_OFDM_RATE_54MB; 5502} 5503 5504struct ipw_network_match { 5505 struct libipw_network *network; 5506 struct ipw_supported_rates rates; 5507}; 5508 5509static int ipw_find_adhoc_network(struct ipw_priv *priv, 5510 struct ipw_network_match *match, 5511 struct libipw_network *network, 5512 int roaming) 5513{ 5514 struct ipw_supported_rates rates; 5515 DECLARE_SSID_BUF(ssid); 5516 5517 /* Verify that this network's capability is compatible with the 5518 * current mode (AdHoc or Infrastructure) */ 5519 if ((priv->ieee->iw_mode == IW_MODE_ADHOC && 5520 !(network->capability & WLAN_CAPABILITY_IBSS))) { 5521 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded due to " 5522 "capability mismatch.\n", 5523 print_ssid(ssid, network->ssid, 5524 network->ssid_len), 5525 network->bssid); 5526 return 0; 5527 } 5528 5529 if (unlikely(roaming)) { 5530 /* If we are roaming, then ensure check if this is a valid 5531 * network to try and roam to */ 5532 if ((network->ssid_len != match->network->ssid_len) || 5533 memcmp(network->ssid, match->network->ssid, 5534 network->ssid_len)) { 5535 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5536 "because of non-network ESSID.\n", 5537 print_ssid(ssid, network->ssid, 5538 network->ssid_len), 5539 network->bssid); 5540 return 0; 5541 } 5542 } else { 5543 /* If an ESSID has been configured then compare the broadcast 5544 * ESSID to ours */ 5545 if ((priv->config & CFG_STATIC_ESSID) && 5546 ((network->ssid_len != priv->essid_len) || 5547 memcmp(network->ssid, priv->essid, 5548 min(network->ssid_len, priv->essid_len)))) { 5549 char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; 5550 5551 strncpy(escaped, 5552 print_ssid(ssid, network->ssid, 5553 network->ssid_len), 5554 sizeof(escaped)); 5555 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5556 "because of ESSID mismatch: '%s'.\n", 5557 escaped, network->bssid, 5558 print_ssid(ssid, priv->essid, 5559 priv->essid_len)); 5560 return 0; 5561 } 5562 } 5563 5564 /* If the old network rate is better than this one, don't bother 5565 * testing everything else. */ 5566 5567 if (network->time_stamp[0] < match->network->time_stamp[0]) { 5568 IPW_DEBUG_MERGE("Network '%s excluded because newer than " 5569 "current network.\n", 5570 print_ssid(ssid, match->network->ssid, 5571 match->network->ssid_len)); 5572 return 0; 5573 } else if (network->time_stamp[1] < match->network->time_stamp[1]) { 5574 IPW_DEBUG_MERGE("Network '%s excluded because newer than " 5575 "current network.\n", 5576 print_ssid(ssid, match->network->ssid, 5577 match->network->ssid_len)); 5578 return 0; 5579 } 5580 5581 /* Now go through and see if the requested network is valid... */ 5582 if (priv->ieee->scan_age != 0 && 5583 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { 5584 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5585 "because of age: %ums.\n", 5586 print_ssid(ssid, network->ssid, 5587 network->ssid_len), 5588 network->bssid, 5589 jiffies_to_msecs(jiffies - 5590 network->last_scanned)); 5591 return 0; 5592 } 5593 5594 if ((priv->config & CFG_STATIC_CHANNEL) && 5595 (network->channel != priv->channel)) { 5596 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5597 "because of channel mismatch: %d != %d.\n", 5598 print_ssid(ssid, network->ssid, 5599 network->ssid_len), 5600 network->bssid, 5601 network->channel, priv->channel); 5602 return 0; 5603 } 5604 5605 /* Verify privacy compatibility */ 5606 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != 5607 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { 5608 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5609 "because of privacy mismatch: %s != %s.\n", 5610 print_ssid(ssid, network->ssid, 5611 network->ssid_len), 5612 network->bssid, 5613 priv-> 5614 capability & CAP_PRIVACY_ON ? "on" : "off", 5615 network-> 5616 capability & WLAN_CAPABILITY_PRIVACY ? "on" : 5617 "off"); 5618 return 0; 5619 } 5620 5621 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) { 5622 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5623 "because of the same BSSID match: %pM" 5624 ".\n", print_ssid(ssid, network->ssid, 5625 network->ssid_len), 5626 network->bssid, 5627 priv->bssid); 5628 return 0; 5629 } 5630 5631 /* Filter out any incompatible freq / mode combinations */ 5632 if (!libipw_is_valid_mode(priv->ieee, network->mode)) { 5633 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5634 "because of invalid frequency/mode " 5635 "combination.\n", 5636 print_ssid(ssid, network->ssid, 5637 network->ssid_len), 5638 network->bssid); 5639 return 0; 5640 } 5641 5642 /* Ensure that the rates supported by the driver are compatible with 5643 * this AP, including verification of basic rates (mandatory) */ 5644 if (!ipw_compatible_rates(priv, network, &rates)) { 5645 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5646 "because configured rate mask excludes " 5647 "AP mandatory rate.\n", 5648 print_ssid(ssid, network->ssid, 5649 network->ssid_len), 5650 network->bssid); 5651 return 0; 5652 } 5653 5654 if (rates.num_rates == 0) { 5655 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded " 5656 "because of no compatible rates.\n", 5657 print_ssid(ssid, network->ssid, 5658 network->ssid_len), 5659 network->bssid); 5660 return 0; 5661 } 5662 5663 /* TODO: Perform any further minimal comparititive tests. We do not 5664 * want to put too much policy logic here; intelligent scan selection 5665 * should occur within a generic IEEE 802.11 user space tool. */ 5666 5667 /* Set up 'new' AP to this network */ 5668 ipw_copy_rates(&match->rates, &rates); 5669 match->network = network; 5670 IPW_DEBUG_MERGE("Network '%s (%pM)' is a viable match.\n", 5671 print_ssid(ssid, network->ssid, network->ssid_len), 5672 network->bssid); 5673 5674 return 1; 5675} 5676 5677static void ipw_merge_adhoc_network(struct work_struct *work) 5678{ 5679 DECLARE_SSID_BUF(ssid); 5680 struct ipw_priv *priv = 5681 container_of(work, struct ipw_priv, merge_networks); 5682 struct libipw_network *network = NULL; 5683 struct ipw_network_match match = { 5684 .network = priv->assoc_network 5685 }; 5686 5687 if ((priv->status & STATUS_ASSOCIATED) && 5688 (priv->ieee->iw_mode == IW_MODE_ADHOC)) { 5689 /* First pass through ROAM process -- look for a better 5690 * network */ 5691 unsigned long flags; 5692 5693 spin_lock_irqsave(&priv->ieee->lock, flags); 5694 list_for_each_entry(network, &priv->ieee->network_list, list) { 5695 if (network != priv->assoc_network) 5696 ipw_find_adhoc_network(priv, &match, network, 5697 1); 5698 } 5699 spin_unlock_irqrestore(&priv->ieee->lock, flags); 5700 5701 if (match.network == priv->assoc_network) { 5702 IPW_DEBUG_MERGE("No better ADHOC in this network to " 5703 "merge to.\n"); 5704 return; 5705 } 5706 5707 mutex_lock(&priv->mutex); 5708 if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) { 5709 IPW_DEBUG_MERGE("remove network %s\n", 5710 print_ssid(ssid, priv->essid, 5711 priv->essid_len)); 5712 ipw_remove_current_network(priv); 5713 } 5714 5715 ipw_disassociate(priv); 5716 priv->assoc_network = match.network; 5717 mutex_unlock(&priv->mutex); 5718 return; 5719 } 5720} 5721 5722static int ipw_best_network(struct ipw_priv *priv, 5723 struct ipw_network_match *match, 5724 struct libipw_network *network, int roaming) 5725{ 5726 struct ipw_supported_rates rates; 5727 DECLARE_SSID_BUF(ssid); 5728 5729 /* Verify that this network's capability is compatible with the 5730 * current mode (AdHoc or Infrastructure) */ 5731 if ((priv->ieee->iw_mode == IW_MODE_INFRA && 5732 !(network->capability & WLAN_CAPABILITY_ESS)) || 5733 (priv->ieee->iw_mode == IW_MODE_ADHOC && 5734 !(network->capability & WLAN_CAPABILITY_IBSS))) { 5735 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded due to " 5736 "capability mismatch.\n", 5737 print_ssid(ssid, network->ssid, 5738 network->ssid_len), 5739 network->bssid); 5740 return 0; 5741 } 5742 5743 if (unlikely(roaming)) { 5744 /* If we are roaming, then ensure check if this is a valid 5745 * network to try and roam to */ 5746 if ((network->ssid_len != match->network->ssid_len) || 5747 memcmp(network->ssid, match->network->ssid, 5748 network->ssid_len)) { 5749 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5750 "because of non-network ESSID.\n", 5751 print_ssid(ssid, network->ssid, 5752 network->ssid_len), 5753 network->bssid); 5754 return 0; 5755 } 5756 } else { 5757 /* If an ESSID has been configured then compare the broadcast 5758 * ESSID to ours */ 5759 if ((priv->config & CFG_STATIC_ESSID) && 5760 ((network->ssid_len != priv->essid_len) || 5761 memcmp(network->ssid, priv->essid, 5762 min(network->ssid_len, priv->essid_len)))) { 5763 char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; 5764 strncpy(escaped, 5765 print_ssid(ssid, network->ssid, 5766 network->ssid_len), 5767 sizeof(escaped)); 5768 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5769 "because of ESSID mismatch: '%s'.\n", 5770 escaped, network->bssid, 5771 print_ssid(ssid, priv->essid, 5772 priv->essid_len)); 5773 return 0; 5774 } 5775 } 5776 5777 /* If the old network rate is better than this one, don't bother 5778 * testing everything else. */ 5779 if (match->network && match->network->stats.rssi > network->stats.rssi) { 5780 char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; 5781 strncpy(escaped, 5782 print_ssid(ssid, network->ssid, network->ssid_len), 5783 sizeof(escaped)); 5784 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded because " 5785 "'%s (%pM)' has a stronger signal.\n", 5786 escaped, network->bssid, 5787 print_ssid(ssid, match->network->ssid, 5788 match->network->ssid_len), 5789 match->network->bssid); 5790 return 0; 5791 } 5792 5793 /* If this network has already had an association attempt within the 5794 * last 3 seconds, do not try and associate again... */ 5795 if (network->last_associate && 5796 time_after(network->last_associate + (HZ * 3UL), jiffies)) { 5797 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5798 "because of storming (%ums since last " 5799 "assoc attempt).\n", 5800 print_ssid(ssid, network->ssid, 5801 network->ssid_len), 5802 network->bssid, 5803 jiffies_to_msecs(jiffies - 5804 network->last_associate)); 5805 return 0; 5806 } 5807 5808 /* Now go through and see if the requested network is valid... */ 5809 if (priv->ieee->scan_age != 0 && 5810 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { 5811 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5812 "because of age: %ums.\n", 5813 print_ssid(ssid, network->ssid, 5814 network->ssid_len), 5815 network->bssid, 5816 jiffies_to_msecs(jiffies - 5817 network->last_scanned)); 5818 return 0; 5819 } 5820 5821 if ((priv->config & CFG_STATIC_CHANNEL) && 5822 (network->channel != priv->channel)) { 5823 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5824 "because of channel mismatch: %d != %d.\n", 5825 print_ssid(ssid, network->ssid, 5826 network->ssid_len), 5827 network->bssid, 5828 network->channel, priv->channel); 5829 return 0; 5830 } 5831 5832 /* Verify privacy compatibility */ 5833 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != 5834 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { 5835 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5836 "because of privacy mismatch: %s != %s.\n", 5837 print_ssid(ssid, network->ssid, 5838 network->ssid_len), 5839 network->bssid, 5840 priv->capability & CAP_PRIVACY_ON ? "on" : 5841 "off", 5842 network->capability & 5843 WLAN_CAPABILITY_PRIVACY ? "on" : "off"); 5844 return 0; 5845 } 5846 5847 if ((priv->config & CFG_STATIC_BSSID) && 5848 memcmp(network->bssid, priv->bssid, ETH_ALEN)) { 5849 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5850 "because of BSSID mismatch: %pM.\n", 5851 print_ssid(ssid, network->ssid, 5852 network->ssid_len), 5853 network->bssid, priv->bssid); 5854 return 0; 5855 } 5856 5857 /* Filter out any incompatible freq / mode combinations */ 5858 if (!libipw_is_valid_mode(priv->ieee, network->mode)) { 5859 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5860 "because of invalid frequency/mode " 5861 "combination.\n", 5862 print_ssid(ssid, network->ssid, 5863 network->ssid_len), 5864 network->bssid); 5865 return 0; 5866 } 5867 5868 /* Filter out invalid channel in current GEO */ 5869 if (!libipw_is_valid_channel(priv->ieee, network->channel)) { 5870 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5871 "because of invalid channel in current GEO\n", 5872 print_ssid(ssid, network->ssid, 5873 network->ssid_len), 5874 network->bssid); 5875 return 0; 5876 } 5877 5878 /* Ensure that the rates supported by the driver are compatible with 5879 * this AP, including verification of basic rates (mandatory) */ 5880 if (!ipw_compatible_rates(priv, network, &rates)) { 5881 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5882 "because configured rate mask excludes " 5883 "AP mandatory rate.\n", 5884 print_ssid(ssid, network->ssid, 5885 network->ssid_len), 5886 network->bssid); 5887 return 0; 5888 } 5889 5890 if (rates.num_rates == 0) { 5891 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded " 5892 "because of no compatible rates.\n", 5893 print_ssid(ssid, network->ssid, 5894 network->ssid_len), 5895 network->bssid); 5896 return 0; 5897 } 5898 5899 /* TODO: Perform any further minimal comparititive tests. We do not 5900 * want to put too much policy logic here; intelligent scan selection 5901 * should occur within a generic IEEE 802.11 user space tool. */ 5902 5903 /* Set up 'new' AP to this network */ 5904 ipw_copy_rates(&match->rates, &rates); 5905 match->network = network; 5906 5907 IPW_DEBUG_ASSOC("Network '%s (%pM)' is a viable match.\n", 5908 print_ssid(ssid, network->ssid, network->ssid_len), 5909 network->bssid); 5910 5911 return 1; 5912} 5913 5914static void ipw_adhoc_create(struct ipw_priv *priv, 5915 struct libipw_network *network) 5916{ 5917 const struct libipw_geo *geo = libipw_get_geo(priv->ieee); 5918 int i; 5919 5920 /* 5921 * For the purposes of scanning, we can set our wireless mode 5922 * to trigger scans across combinations of bands, but when it 5923 * comes to creating a new ad-hoc network, we have tell the FW 5924 * exactly which band to use. 5925 * 5926 * We also have the possibility of an invalid channel for the 5927 * chossen band. Attempting to create a new ad-hoc network 5928 * with an invalid channel for wireless mode will trigger a 5929 * FW fatal error. 5930 * 5931 */ 5932 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { 5933 case LIBIPW_52GHZ_BAND: 5934 network->mode = IEEE_A; 5935 i = libipw_channel_to_index(priv->ieee, priv->channel); 5936 BUG_ON(i == -1); 5937 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) { 5938 IPW_WARNING("Overriding invalid channel\n"); 5939 priv->channel = geo->a[0].channel; 5940 } 5941 break; 5942 5943 case LIBIPW_24GHZ_BAND: 5944 if (priv->ieee->mode & IEEE_G) 5945 network->mode = IEEE_G; 5946 else 5947 network->mode = IEEE_B; 5948 i = libipw_channel_to_index(priv->ieee, priv->channel); 5949 BUG_ON(i == -1); 5950 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) { 5951 IPW_WARNING("Overriding invalid channel\n"); 5952 priv->channel = geo->bg[0].channel; 5953 } 5954 break; 5955 5956 default: 5957 IPW_WARNING("Overriding invalid channel\n"); 5958 if (priv->ieee->mode & IEEE_A) { 5959 network->mode = IEEE_A; 5960 priv->channel = geo->a[0].channel; 5961 } else if (priv->ieee->mode & IEEE_G) { 5962 network->mode = IEEE_G; 5963 priv->channel = geo->bg[0].channel; 5964 } else { 5965 network->mode = IEEE_B; 5966 priv->channel = geo->bg[0].channel; 5967 } 5968 break; 5969 } 5970 5971 network->channel = priv->channel; 5972 priv->config |= CFG_ADHOC_PERSIST; 5973 ipw_create_bssid(priv, network->bssid); 5974 network->ssid_len = priv->essid_len; 5975 memcpy(network->ssid, priv->essid, priv->essid_len); 5976 memset(&network->stats, 0, sizeof(network->stats)); 5977 network->capability = WLAN_CAPABILITY_IBSS; 5978 if (!(priv->config & CFG_PREAMBLE_LONG)) 5979 network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE; 5980 if (priv->capability & CAP_PRIVACY_ON) 5981 network->capability |= WLAN_CAPABILITY_PRIVACY; 5982 network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH); 5983 memcpy(network->rates, priv->rates.supported_rates, network->rates_len); 5984 network->rates_ex_len = priv->rates.num_rates - network->rates_len; 5985 memcpy(network->rates_ex, 5986 &priv->rates.supported_rates[network->rates_len], 5987 network->rates_ex_len); 5988 network->last_scanned = 0; 5989 network->flags = 0; 5990 network->last_associate = 0; 5991 network->time_stamp[0] = 0; 5992 network->time_stamp[1] = 0; 5993 network->beacon_interval = 100; /* Default */ 5994 network->listen_interval = 10; /* Default */ 5995 network->atim_window = 0; /* Default */ 5996 network->wpa_ie_len = 0; 5997 network->rsn_ie_len = 0; 5998} 5999 6000static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index) 6001{ 6002 struct ipw_tgi_tx_key key; 6003 6004 if (!(priv->ieee->sec.flags & (1 << index))) 6005 return; 6006 6007 key.key_id = index; 6008 memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH); 6009 key.security_type = type; 6010 key.station_index = 0; /* always 0 for BSS */ 6011 key.flags = 0; 6012 /* 0 for new key; previous value of counter (after fatal error) */ 6013 key.tx_counter[0] = cpu_to_le32(0); 6014 key.tx_counter[1] = cpu_to_le32(0); 6015 6016 ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key); 6017} 6018 6019static void ipw_send_wep_keys(struct ipw_priv *priv, int type) 6020{ 6021 struct ipw_wep_key key; 6022 int i; 6023 6024 key.cmd_id = DINO_CMD_WEP_KEY; 6025 key.seq_num = 0; 6026 6027 /* Note: AES keys cannot be set for multiple times. 6028 * Only set it at the first time. */ 6029 for (i = 0; i < 4; i++) { 6030 key.key_index = i | type; 6031 if (!(priv->ieee->sec.flags & (1 << i))) { 6032 key.key_size = 0; 6033 continue; 6034 } 6035 6036 key.key_size = priv->ieee->sec.key_sizes[i]; 6037 memcpy(key.key, priv->ieee->sec.keys[i], key.key_size); 6038 6039 ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key); 6040 } 6041} 6042 6043static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level) 6044{ 6045 if (priv->ieee->host_encrypt) 6046 return; 6047 6048 switch (level) { 6049 case SEC_LEVEL_3: 6050 priv->sys_config.disable_unicast_decryption = 0; 6051 priv->ieee->host_decrypt = 0; 6052 break; 6053 case SEC_LEVEL_2: 6054 priv->sys_config.disable_unicast_decryption = 1; 6055 priv->ieee->host_decrypt = 1; 6056 break; 6057 case SEC_LEVEL_1: 6058 priv->sys_config.disable_unicast_decryption = 0; 6059 priv->ieee->host_decrypt = 0; 6060 break; 6061 case SEC_LEVEL_0: 6062 priv->sys_config.disable_unicast_decryption = 1; 6063 break; 6064 default: 6065 break; 6066 } 6067} 6068 6069static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level) 6070{ 6071 if (priv->ieee->host_encrypt) 6072 return; 6073 6074 switch (level) { 6075 case SEC_LEVEL_3: 6076 priv->sys_config.disable_multicast_decryption = 0; 6077 break; 6078 case SEC_LEVEL_2: 6079 priv->sys_config.disable_multicast_decryption = 1; 6080 break; 6081 case SEC_LEVEL_1: 6082 priv->sys_config.disable_multicast_decryption = 0; 6083 break; 6084 case SEC_LEVEL_0: 6085 priv->sys_config.disable_multicast_decryption = 1; 6086 break; 6087 default: 6088 break; 6089 } 6090} 6091 6092static void ipw_set_hwcrypto_keys(struct ipw_priv *priv) 6093{ 6094 switch (priv->ieee->sec.level) { 6095 case SEC_LEVEL_3: 6096 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) 6097 ipw_send_tgi_tx_key(priv, 6098 DCT_FLAG_EXT_SECURITY_CCM, 6099 priv->ieee->sec.active_key); 6100 6101 if (!priv->ieee->host_mc_decrypt) 6102 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM); 6103 break; 6104 case SEC_LEVEL_2: 6105 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) 6106 ipw_send_tgi_tx_key(priv, 6107 DCT_FLAG_EXT_SECURITY_TKIP, 6108 priv->ieee->sec.active_key); 6109 break; 6110 case SEC_LEVEL_1: 6111 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); 6112 ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level); 6113 ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level); 6114 break; 6115 case SEC_LEVEL_0: 6116 default: 6117 break; 6118 } 6119} 6120 6121static void ipw_adhoc_check(void *data) 6122{ 6123 struct ipw_priv *priv = data; 6124 6125 if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold && 6126 !(priv->config & CFG_ADHOC_PERSIST)) { 6127 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | 6128 IPW_DL_STATE | IPW_DL_ASSOC, 6129 "Missed beacon: %d - disassociate\n", 6130 priv->missed_adhoc_beacons); 6131 ipw_remove_current_network(priv); 6132 ipw_disassociate(priv); 6133 return; 6134 } 6135 6136 schedule_delayed_work(&priv->adhoc_check, 6137 le16_to_cpu(priv->assoc_request.beacon_interval)); 6138} 6139 6140static void ipw_bg_adhoc_check(struct work_struct *work) 6141{ 6142 struct ipw_priv *priv = 6143 container_of(work, struct ipw_priv, adhoc_check.work); 6144 mutex_lock(&priv->mutex); 6145 ipw_adhoc_check(priv); 6146 mutex_unlock(&priv->mutex); 6147} 6148 6149static void ipw_debug_config(struct ipw_priv *priv) 6150{ 6151 DECLARE_SSID_BUF(ssid); 6152 IPW_DEBUG_INFO("Scan completed, no valid APs matched " 6153 "[CFG 0x%08X]\n", priv->config); 6154 if (priv->config & CFG_STATIC_CHANNEL) 6155 IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel); 6156 else 6157 IPW_DEBUG_INFO("Channel unlocked.\n"); 6158 if (priv->config & CFG_STATIC_ESSID) 6159 IPW_DEBUG_INFO("ESSID locked to '%s'\n", 6160 print_ssid(ssid, priv->essid, priv->essid_len)); 6161 else 6162 IPW_DEBUG_INFO("ESSID unlocked.\n"); 6163 if (priv->config & CFG_STATIC_BSSID) 6164 IPW_DEBUG_INFO("BSSID locked to %pM\n", priv->bssid); 6165 else 6166 IPW_DEBUG_INFO("BSSID unlocked.\n"); 6167 if (priv->capability & CAP_PRIVACY_ON) 6168 IPW_DEBUG_INFO("PRIVACY on\n"); 6169 else 6170 IPW_DEBUG_INFO("PRIVACY off\n"); 6171 IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask); 6172} 6173 6174static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode) 6175{ 6176 /* TODO: Verify that this works... */ 6177 struct ipw_fixed_rate fr; 6178 u32 reg; 6179 u16 mask = 0; 6180 u16 new_tx_rates = priv->rates_mask; 6181 6182 /* Identify 'current FW band' and match it with the fixed 6183 * Tx rates */ 6184 6185 switch (priv->ieee->freq_band) { 6186 case LIBIPW_52GHZ_BAND: /* A only */ 6187 /* IEEE_A */ 6188 if (priv->rates_mask & ~LIBIPW_OFDM_RATES_MASK) { 6189 /* Invalid fixed rate mask */ 6190 IPW_DEBUG_WX 6191 ("invalid fixed rate mask in ipw_set_fixed_rate\n"); 6192 new_tx_rates = 0; 6193 break; 6194 } 6195 6196 new_tx_rates >>= LIBIPW_OFDM_SHIFT_MASK_A; 6197 break; 6198 6199 default: /* 2.4Ghz or Mixed */ 6200 /* IEEE_B */ 6201 if (mode == IEEE_B) { 6202 if (new_tx_rates & ~LIBIPW_CCK_RATES_MASK) { 6203 /* Invalid fixed rate mask */ 6204 IPW_DEBUG_WX 6205 ("invalid fixed rate mask in ipw_set_fixed_rate\n"); 6206 new_tx_rates = 0; 6207 } 6208 break; 6209 } 6210 6211 /* IEEE_G */ 6212 if (new_tx_rates & ~(LIBIPW_CCK_RATES_MASK | 6213 LIBIPW_OFDM_RATES_MASK)) { 6214 /* Invalid fixed rate mask */ 6215 IPW_DEBUG_WX 6216 ("invalid fixed rate mask in ipw_set_fixed_rate\n"); 6217 new_tx_rates = 0; 6218 break; 6219 } 6220 6221 if (LIBIPW_OFDM_RATE_6MB_MASK & new_tx_rates) { 6222 mask |= (LIBIPW_OFDM_RATE_6MB_MASK >> 1); 6223 new_tx_rates &= ~LIBIPW_OFDM_RATE_6MB_MASK; 6224 } 6225 6226 if (LIBIPW_OFDM_RATE_9MB_MASK & new_tx_rates) { 6227 mask |= (LIBIPW_OFDM_RATE_9MB_MASK >> 1); 6228 new_tx_rates &= ~LIBIPW_OFDM_RATE_9MB_MASK; 6229 } 6230 6231 if (LIBIPW_OFDM_RATE_12MB_MASK & new_tx_rates) { 6232 mask |= (LIBIPW_OFDM_RATE_12MB_MASK >> 1); 6233 new_tx_rates &= ~LIBIPW_OFDM_RATE_12MB_MASK; 6234 } 6235 6236 new_tx_rates |= mask; 6237 break; 6238 } 6239 6240 fr.tx_rates = cpu_to_le16(new_tx_rates); 6241 6242 reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE); 6243 ipw_write_reg32(priv, reg, *(u32 *) & fr); 6244} 6245 6246static void ipw_abort_scan(struct ipw_priv *priv) 6247{ 6248 int err; 6249 6250 if (priv->status & STATUS_SCAN_ABORTING) { 6251 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n"); 6252 return; 6253 } 6254 priv->status |= STATUS_SCAN_ABORTING; 6255 6256 err = ipw_send_scan_abort(priv); 6257 if (err) 6258 IPW_DEBUG_HC("Request to abort scan failed.\n"); 6259} 6260 6261static void ipw_add_scan_channels(struct ipw_priv *priv, 6262 struct ipw_scan_request_ext *scan, 6263 int scan_type) 6264{ 6265 int channel_index = 0; 6266 const struct libipw_geo *geo; 6267 int i; 6268 6269 geo = libipw_get_geo(priv->ieee); 6270 6271 if (priv->ieee->freq_band & LIBIPW_52GHZ_BAND) { 6272 int start = channel_index; 6273 for (i = 0; i < geo->a_channels; i++) { 6274 if ((priv->status & STATUS_ASSOCIATED) && 6275 geo->a[i].channel == priv->channel) 6276 continue; 6277 channel_index++; 6278 scan->channels_list[channel_index] = geo->a[i].channel; 6279 ipw_set_scan_type(scan, channel_index, 6280 geo->a[i]. 6281 flags & LIBIPW_CH_PASSIVE_ONLY ? 6282 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN : 6283 scan_type); 6284 } 6285 6286 if (start != channel_index) { 6287 scan->channels_list[start] = (u8) (IPW_A_MODE << 6) | 6288 (channel_index - start); 6289 channel_index++; 6290 } 6291 } 6292 6293 if (priv->ieee->freq_band & LIBIPW_24GHZ_BAND) { 6294 int start = channel_index; 6295 if (priv->config & CFG_SPEED_SCAN) { 6296 int index; 6297 u8 channels[LIBIPW_24GHZ_CHANNELS] = { 6298 /* nop out the list */ 6299 [0] = 0 6300 }; 6301 6302 u8 channel; 6303 while (channel_index < IPW_SCAN_CHANNELS - 1) { 6304 channel = 6305 priv->speed_scan[priv->speed_scan_pos]; 6306 if (channel == 0) { 6307 priv->speed_scan_pos = 0; 6308 channel = priv->speed_scan[0]; 6309 } 6310 if ((priv->status & STATUS_ASSOCIATED) && 6311 channel == priv->channel) { 6312 priv->speed_scan_pos++; 6313 continue; 6314 } 6315 6316 /* If this channel has already been 6317 * added in scan, break from loop 6318 * and this will be the first channel 6319 * in the next scan. 6320 */ 6321 if (channels[channel - 1] != 0) 6322 break; 6323 6324 channels[channel - 1] = 1; 6325 priv->speed_scan_pos++; 6326 channel_index++; 6327 scan->channels_list[channel_index] = channel; 6328 index = 6329 libipw_channel_to_index(priv->ieee, channel); 6330 ipw_set_scan_type(scan, channel_index, 6331 geo->bg[index]. 6332 flags & 6333 LIBIPW_CH_PASSIVE_ONLY ? 6334 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN 6335 : scan_type); 6336 } 6337 } else { 6338 for (i = 0; i < geo->bg_channels; i++) { 6339 if ((priv->status & STATUS_ASSOCIATED) && 6340 geo->bg[i].channel == priv->channel) 6341 continue; 6342 channel_index++; 6343 scan->channels_list[channel_index] = 6344 geo->bg[i].channel; 6345 ipw_set_scan_type(scan, channel_index, 6346 geo->bg[i]. 6347 flags & 6348 LIBIPW_CH_PASSIVE_ONLY ? 6349 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN 6350 : scan_type); 6351 } 6352 } 6353 6354 if (start != channel_index) { 6355 scan->channels_list[start] = (u8) (IPW_B_MODE << 6) | 6356 (channel_index - start); 6357 } 6358 } 6359} 6360 6361static int ipw_passive_dwell_time(struct ipw_priv *priv) 6362{ 6363 /* staying on passive channels longer than the DTIM interval during a 6364 * scan, while associated, causes the firmware to cancel the scan 6365 * without notification. Hence, don't stay on passive channels longer 6366 * than the beacon interval. 6367 */ 6368 if (priv->status & STATUS_ASSOCIATED 6369 && priv->assoc_network->beacon_interval > 10) 6370 return priv->assoc_network->beacon_interval - 10; 6371 else 6372 return 120; 6373} 6374 6375static int ipw_request_scan_helper(struct ipw_priv *priv, int type, int direct) 6376{ 6377 struct ipw_scan_request_ext scan; 6378 int err = 0, scan_type; 6379 6380 if (!(priv->status & STATUS_INIT) || 6381 (priv->status & STATUS_EXIT_PENDING)) 6382 return 0; 6383 6384 mutex_lock(&priv->mutex); 6385 6386 if (direct && (priv->direct_scan_ssid_len == 0)) { 6387 IPW_DEBUG_HC("Direct scan requested but no SSID to scan for\n"); 6388 priv->status &= ~STATUS_DIRECT_SCAN_PENDING; 6389 goto done; 6390 } 6391 6392 if (priv->status & STATUS_SCANNING) { 6393 IPW_DEBUG_HC("Concurrent scan requested. Queuing.\n"); 6394 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : 6395 STATUS_SCAN_PENDING; 6396 goto done; 6397 } 6398 6399 if (!(priv->status & STATUS_SCAN_FORCED) && 6400 priv->status & STATUS_SCAN_ABORTING) { 6401 IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n"); 6402 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : 6403 STATUS_SCAN_PENDING; 6404 goto done; 6405 } 6406 6407 if (priv->status & STATUS_RF_KILL_MASK) { 6408 IPW_DEBUG_HC("Queuing scan due to RF Kill activation\n"); 6409 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : 6410 STATUS_SCAN_PENDING; 6411 goto done; 6412 } 6413 6414 memset(&scan, 0, sizeof(scan)); 6415 scan.full_scan_index = cpu_to_le32(libipw_get_scans(priv->ieee)); 6416 6417 if (type == IW_SCAN_TYPE_PASSIVE) { 6418 IPW_DEBUG_WX("use passive scanning\n"); 6419 scan_type = IPW_SCAN_PASSIVE_FULL_DWELL_SCAN; 6420 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = 6421 cpu_to_le16(ipw_passive_dwell_time(priv)); 6422 ipw_add_scan_channels(priv, &scan, scan_type); 6423 goto send_request; 6424 } 6425 6426 /* Use active scan by default. */ 6427 if (priv->config & CFG_SPEED_SCAN) 6428 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = 6429 cpu_to_le16(30); 6430 else 6431 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = 6432 cpu_to_le16(20); 6433 6434 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] = 6435 cpu_to_le16(20); 6436 6437 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = 6438 cpu_to_le16(ipw_passive_dwell_time(priv)); 6439 scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20); 6440 6441#ifdef CONFIG_IPW2200_MONITOR 6442 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 6443 u8 channel; 6444 u8 band = 0; 6445 6446 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { 6447 case LIBIPW_52GHZ_BAND: 6448 band = (u8) (IPW_A_MODE << 6) | 1; 6449 channel = priv->channel; 6450 break; 6451 6452 case LIBIPW_24GHZ_BAND: 6453 band = (u8) (IPW_B_MODE << 6) | 1; 6454 channel = priv->channel; 6455 break; 6456 6457 default: 6458 band = (u8) (IPW_B_MODE << 6) | 1; 6459 channel = 9; 6460 break; 6461 } 6462 6463 scan.channels_list[0] = band; 6464 scan.channels_list[1] = channel; 6465 ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN); 6466 6467 /* NOTE: The card will sit on this channel for this time 6468 * period. Scan aborts are timing sensitive and frequently 6469 * result in firmware restarts. As such, it is best to 6470 * set a small dwell_time here and just keep re-issuing 6471 * scans. Otherwise fast channel hopping will not actually 6472 * hop channels. 6473 * 6474 * TODO: Move SPEED SCAN support to all modes and bands */ 6475 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = 6476 cpu_to_le16(2000); 6477 } else { 6478#endif /* CONFIG_IPW2200_MONITOR */ 6479 /* Honor direct scans first, otherwise if we are roaming make 6480 * this a direct scan for the current network. Finally, 6481 * ensure that every other scan is a fast channel hop scan */ 6482 if (direct) { 6483 err = ipw_send_ssid(priv, priv->direct_scan_ssid, 6484 priv->direct_scan_ssid_len); 6485 if (err) { 6486 IPW_DEBUG_HC("Attempt to send SSID command " 6487 "failed\n"); 6488 goto done; 6489 } 6490 6491 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; 6492 } else if ((priv->status & STATUS_ROAMING) 6493 || (!(priv->status & STATUS_ASSOCIATED) 6494 && (priv->config & CFG_STATIC_ESSID) 6495 && (le32_to_cpu(scan.full_scan_index) % 2))) { 6496 err = ipw_send_ssid(priv, priv->essid, priv->essid_len); 6497 if (err) { 6498 IPW_DEBUG_HC("Attempt to send SSID command " 6499 "failed.\n"); 6500 goto done; 6501 } 6502 6503 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; 6504 } else 6505 scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN; 6506 6507 ipw_add_scan_channels(priv, &scan, scan_type); 6508#ifdef CONFIG_IPW2200_MONITOR 6509 } 6510#endif 6511 6512send_request: 6513 err = ipw_send_scan_request_ext(priv, &scan); 6514 if (err) { 6515 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err); 6516 goto done; 6517 } 6518 6519 priv->status |= STATUS_SCANNING; 6520 if (direct) { 6521 priv->status &= ~STATUS_DIRECT_SCAN_PENDING; 6522 priv->direct_scan_ssid_len = 0; 6523 } else 6524 priv->status &= ~STATUS_SCAN_PENDING; 6525 6526 schedule_delayed_work(&priv->scan_check, IPW_SCAN_CHECK_WATCHDOG); 6527done: 6528 mutex_unlock(&priv->mutex); 6529 return err; 6530} 6531 6532static void ipw_request_passive_scan(struct work_struct *work) 6533{ 6534 struct ipw_priv *priv = 6535 container_of(work, struct ipw_priv, request_passive_scan.work); 6536 ipw_request_scan_helper(priv, IW_SCAN_TYPE_PASSIVE, 0); 6537} 6538 6539static void ipw_request_scan(struct work_struct *work) 6540{ 6541 struct ipw_priv *priv = 6542 container_of(work, struct ipw_priv, request_scan.work); 6543 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 0); 6544} 6545 6546static void ipw_request_direct_scan(struct work_struct *work) 6547{ 6548 struct ipw_priv *priv = 6549 container_of(work, struct ipw_priv, request_direct_scan.work); 6550 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 1); 6551} 6552 6553static void ipw_bg_abort_scan(struct work_struct *work) 6554{ 6555 struct ipw_priv *priv = 6556 container_of(work, struct ipw_priv, abort_scan); 6557 mutex_lock(&priv->mutex); 6558 ipw_abort_scan(priv); 6559 mutex_unlock(&priv->mutex); 6560} 6561 6562static int ipw_wpa_enable(struct ipw_priv *priv, int value) 6563{ 6564 /* This is called when wpa_supplicant loads and closes the driver 6565 * interface. */ 6566 priv->ieee->wpa_enabled = value; 6567 return 0; 6568} 6569 6570static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value) 6571{ 6572 struct libipw_device *ieee = priv->ieee; 6573 struct libipw_security sec = { 6574 .flags = SEC_AUTH_MODE, 6575 }; 6576 int ret = 0; 6577 6578 if (value & IW_AUTH_ALG_SHARED_KEY) { 6579 sec.auth_mode = WLAN_AUTH_SHARED_KEY; 6580 ieee->open_wep = 0; 6581 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) { 6582 sec.auth_mode = WLAN_AUTH_OPEN; 6583 ieee->open_wep = 1; 6584 } else if (value & IW_AUTH_ALG_LEAP) { 6585 sec.auth_mode = WLAN_AUTH_LEAP; 6586 ieee->open_wep = 1; 6587 } else 6588 return -EINVAL; 6589 6590 if (ieee->set_security) 6591 ieee->set_security(ieee->dev, &sec); 6592 else 6593 ret = -EOPNOTSUPP; 6594 6595 return ret; 6596} 6597 6598static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie, 6599 int wpa_ie_len) 6600{ 6601 /* make sure WPA is enabled */ 6602 ipw_wpa_enable(priv, 1); 6603} 6604 6605static int ipw_set_rsn_capa(struct ipw_priv *priv, 6606 char *capabilities, int length) 6607{ 6608 IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n"); 6609 6610 return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length, 6611 capabilities); 6612} 6613 6614/* 6615 * WE-18 support 6616 */ 6617 6618/* SIOCSIWGENIE */ 6619static int ipw_wx_set_genie(struct net_device *dev, 6620 struct iw_request_info *info, 6621 union iwreq_data *wrqu, char *extra) 6622{ 6623 struct ipw_priv *priv = libipw_priv(dev); 6624 struct libipw_device *ieee = priv->ieee; 6625 u8 *buf; 6626 int err = 0; 6627 6628 if (wrqu->data.length > MAX_WPA_IE_LEN || 6629 (wrqu->data.length && extra == NULL)) 6630 return -EINVAL; 6631 6632 if (wrqu->data.length) { 6633 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL); 6634 if (buf == NULL) { 6635 err = -ENOMEM; 6636 goto out; 6637 } 6638 6639 kfree(ieee->wpa_ie); 6640 ieee->wpa_ie = buf; 6641 ieee->wpa_ie_len = wrqu->data.length; 6642 } else { 6643 kfree(ieee->wpa_ie); 6644 ieee->wpa_ie = NULL; 6645 ieee->wpa_ie_len = 0; 6646 } 6647 6648 ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len); 6649 out: 6650 return err; 6651} 6652 6653/* SIOCGIWGENIE */ 6654static int ipw_wx_get_genie(struct net_device *dev, 6655 struct iw_request_info *info, 6656 union iwreq_data *wrqu, char *extra) 6657{ 6658 struct ipw_priv *priv = libipw_priv(dev); 6659 struct libipw_device *ieee = priv->ieee; 6660 int err = 0; 6661 6662 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) { 6663 wrqu->data.length = 0; 6664 goto out; 6665 } 6666 6667 if (wrqu->data.length < ieee->wpa_ie_len) { 6668 err = -E2BIG; 6669 goto out; 6670 } 6671 6672 wrqu->data.length = ieee->wpa_ie_len; 6673 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len); 6674 6675 out: 6676 return err; 6677} 6678 6679static int wext_cipher2level(int cipher) 6680{ 6681 switch (cipher) { 6682 case IW_AUTH_CIPHER_NONE: 6683 return SEC_LEVEL_0; 6684 case IW_AUTH_CIPHER_WEP40: 6685 case IW_AUTH_CIPHER_WEP104: 6686 return SEC_LEVEL_1; 6687 case IW_AUTH_CIPHER_TKIP: 6688 return SEC_LEVEL_2; 6689 case IW_AUTH_CIPHER_CCMP: 6690 return SEC_LEVEL_3; 6691 default: 6692 return -1; 6693 } 6694} 6695 6696/* SIOCSIWAUTH */ 6697static int ipw_wx_set_auth(struct net_device *dev, 6698 struct iw_request_info *info, 6699 union iwreq_data *wrqu, char *extra) 6700{ 6701 struct ipw_priv *priv = libipw_priv(dev); 6702 struct libipw_device *ieee = priv->ieee; 6703 struct iw_param *param = &wrqu->param; 6704 struct lib80211_crypt_data *crypt; 6705 unsigned long flags; 6706 int ret = 0; 6707 6708 switch (param->flags & IW_AUTH_INDEX) { 6709 case IW_AUTH_WPA_VERSION: 6710 break; 6711 case IW_AUTH_CIPHER_PAIRWISE: 6712 ipw_set_hw_decrypt_unicast(priv, 6713 wext_cipher2level(param->value)); 6714 break; 6715 case IW_AUTH_CIPHER_GROUP: 6716 ipw_set_hw_decrypt_multicast(priv, 6717 wext_cipher2level(param->value)); 6718 break; 6719 case IW_AUTH_KEY_MGMT: 6720 /* 6721 * ipw2200 does not use these parameters 6722 */ 6723 break; 6724 6725 case IW_AUTH_TKIP_COUNTERMEASURES: 6726 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; 6727 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) 6728 break; 6729 6730 flags = crypt->ops->get_flags(crypt->priv); 6731 6732 if (param->value) 6733 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; 6734 else 6735 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; 6736 6737 crypt->ops->set_flags(flags, crypt->priv); 6738 6739 break; 6740 6741 case IW_AUTH_DROP_UNENCRYPTED:{ 6742 /* HACK: 6743 * 6744 * wpa_supplicant calls set_wpa_enabled when the driver 6745 * is loaded and unloaded, regardless of if WPA is being 6746 * used. No other calls are made which can be used to 6747 * determine if encryption will be used or not prior to 6748 * association being expected. If encryption is not being 6749 * used, drop_unencrypted is set to false, else true -- we 6750 * can use this to determine if the CAP_PRIVACY_ON bit should 6751 * be set. 6752 */ 6753 struct libipw_security sec = { 6754 .flags = SEC_ENABLED, 6755 .enabled = param->value, 6756 }; 6757 priv->ieee->drop_unencrypted = param->value; 6758 /* We only change SEC_LEVEL for open mode. Others 6759 * are set by ipw_wpa_set_encryption. 6760 */ 6761 if (!param->value) { 6762 sec.flags |= SEC_LEVEL; 6763 sec.level = SEC_LEVEL_0; 6764 } else { 6765 sec.flags |= SEC_LEVEL; 6766 sec.level = SEC_LEVEL_1; 6767 } 6768 if (priv->ieee->set_security) 6769 priv->ieee->set_security(priv->ieee->dev, &sec); 6770 break; 6771 } 6772 6773 case IW_AUTH_80211_AUTH_ALG: 6774 ret = ipw_wpa_set_auth_algs(priv, param->value); 6775 break; 6776 6777 case IW_AUTH_WPA_ENABLED: 6778 ret = ipw_wpa_enable(priv, param->value); 6779 ipw_disassociate(priv); 6780 break; 6781 6782 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 6783 ieee->ieee802_1x = param->value; 6784 break; 6785 6786 case IW_AUTH_PRIVACY_INVOKED: 6787 ieee->privacy_invoked = param->value; 6788 break; 6789 6790 default: 6791 return -EOPNOTSUPP; 6792 } 6793 return ret; 6794} 6795 6796/* SIOCGIWAUTH */ 6797static int ipw_wx_get_auth(struct net_device *dev, 6798 struct iw_request_info *info, 6799 union iwreq_data *wrqu, char *extra) 6800{ 6801 struct ipw_priv *priv = libipw_priv(dev); 6802 struct libipw_device *ieee = priv->ieee; 6803 struct lib80211_crypt_data *crypt; 6804 struct iw_param *param = &wrqu->param; 6805 int ret = 0; 6806 6807 switch (param->flags & IW_AUTH_INDEX) { 6808 case IW_AUTH_WPA_VERSION: 6809 case IW_AUTH_CIPHER_PAIRWISE: 6810 case IW_AUTH_CIPHER_GROUP: 6811 case IW_AUTH_KEY_MGMT: 6812 /* 6813 * wpa_supplicant will control these internally 6814 */ 6815 ret = -EOPNOTSUPP; 6816 break; 6817 6818 case IW_AUTH_TKIP_COUNTERMEASURES: 6819 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; 6820 if (!crypt || !crypt->ops->get_flags) 6821 break; 6822 6823 param->value = (crypt->ops->get_flags(crypt->priv) & 6824 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0; 6825 6826 break; 6827 6828 case IW_AUTH_DROP_UNENCRYPTED: 6829 param->value = ieee->drop_unencrypted; 6830 break; 6831 6832 case IW_AUTH_80211_AUTH_ALG: 6833 param->value = ieee->sec.auth_mode; 6834 break; 6835 6836 case IW_AUTH_WPA_ENABLED: 6837 param->value = ieee->wpa_enabled; 6838 break; 6839 6840 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 6841 param->value = ieee->ieee802_1x; 6842 break; 6843 6844 case IW_AUTH_ROAMING_CONTROL: 6845 case IW_AUTH_PRIVACY_INVOKED: 6846 param->value = ieee->privacy_invoked; 6847 break; 6848 6849 default: 6850 return -EOPNOTSUPP; 6851 } 6852 return 0; 6853} 6854 6855/* SIOCSIWENCODEEXT */ 6856static int ipw_wx_set_encodeext(struct net_device *dev, 6857 struct iw_request_info *info, 6858 union iwreq_data *wrqu, char *extra) 6859{ 6860 struct ipw_priv *priv = libipw_priv(dev); 6861 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; 6862 6863 if (hwcrypto) { 6864 if (ext->alg == IW_ENCODE_ALG_TKIP) { 6865 /* IPW HW can't build TKIP MIC, 6866 host decryption still needed */ 6867 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) 6868 priv->ieee->host_mc_decrypt = 1; 6869 else { 6870 priv->ieee->host_encrypt = 0; 6871 priv->ieee->host_encrypt_msdu = 1; 6872 priv->ieee->host_decrypt = 1; 6873 } 6874 } else { 6875 priv->ieee->host_encrypt = 0; 6876 priv->ieee->host_encrypt_msdu = 0; 6877 priv->ieee->host_decrypt = 0; 6878 priv->ieee->host_mc_decrypt = 0; 6879 } 6880 } 6881 6882 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra); 6883} 6884 6885/* SIOCGIWENCODEEXT */ 6886static int ipw_wx_get_encodeext(struct net_device *dev, 6887 struct iw_request_info *info, 6888 union iwreq_data *wrqu, char *extra) 6889{ 6890 struct ipw_priv *priv = libipw_priv(dev); 6891 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra); 6892} 6893 6894/* SIOCSIWMLME */ 6895static int ipw_wx_set_mlme(struct net_device *dev, 6896 struct iw_request_info *info, 6897 union iwreq_data *wrqu, char *extra) 6898{ 6899 struct ipw_priv *priv = libipw_priv(dev); 6900 struct iw_mlme *mlme = (struct iw_mlme *)extra; 6901 __le16 reason; 6902 6903 reason = cpu_to_le16(mlme->reason_code); 6904 6905 switch (mlme->cmd) { 6906 case IW_MLME_DEAUTH: 6907 /* silently ignore */ 6908 break; 6909 6910 case IW_MLME_DISASSOC: 6911 ipw_disassociate(priv); 6912 break; 6913 6914 default: 6915 return -EOPNOTSUPP; 6916 } 6917 return 0; 6918} 6919 6920#ifdef CONFIG_IPW2200_QOS 6921 6922/* QoS */ 6923/* 6924* get the modulation type of the current network or 6925* the card current mode 6926*/ 6927static u8 ipw_qos_current_mode(struct ipw_priv * priv) 6928{ 6929 u8 mode = 0; 6930 6931 if (priv->status & STATUS_ASSOCIATED) { 6932 unsigned long flags; 6933 6934 spin_lock_irqsave(&priv->ieee->lock, flags); 6935 mode = priv->assoc_network->mode; 6936 spin_unlock_irqrestore(&priv->ieee->lock, flags); 6937 } else { 6938 mode = priv->ieee->mode; 6939 } 6940 IPW_DEBUG_QOS("QoS network/card mode %d\n", mode); 6941 return mode; 6942} 6943 6944/* 6945* Handle management frame beacon and probe response 6946*/ 6947static int ipw_qos_handle_probe_response(struct ipw_priv *priv, 6948 int active_network, 6949 struct libipw_network *network) 6950{ 6951 u32 size = sizeof(struct libipw_qos_parameters); 6952 6953 if (network->capability & WLAN_CAPABILITY_IBSS) 6954 network->qos_data.active = network->qos_data.supported; 6955 6956 if (network->flags & NETWORK_HAS_QOS_MASK) { 6957 if (active_network && 6958 (network->flags & NETWORK_HAS_QOS_PARAMETERS)) 6959 network->qos_data.active = network->qos_data.supported; 6960 6961 if ((network->qos_data.active == 1) && (active_network == 1) && 6962 (network->flags & NETWORK_HAS_QOS_PARAMETERS) && 6963 (network->qos_data.old_param_count != 6964 network->qos_data.param_count)) { 6965 network->qos_data.old_param_count = 6966 network->qos_data.param_count; 6967 schedule_work(&priv->qos_activate); 6968 IPW_DEBUG_QOS("QoS parameters change call " 6969 "qos_activate\n"); 6970 } 6971 } else { 6972 if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B)) 6973 memcpy(&network->qos_data.parameters, 6974 &def_parameters_CCK, size); 6975 else 6976 memcpy(&network->qos_data.parameters, 6977 &def_parameters_OFDM, size); 6978 6979 if ((network->qos_data.active == 1) && (active_network == 1)) { 6980 IPW_DEBUG_QOS("QoS was disabled call qos_activate\n"); 6981 schedule_work(&priv->qos_activate); 6982 } 6983 6984 network->qos_data.active = 0; 6985 network->qos_data.supported = 0; 6986 } 6987 if ((priv->status & STATUS_ASSOCIATED) && 6988 (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) { 6989 if (memcmp(network->bssid, priv->bssid, ETH_ALEN)) 6990 if (network->capability & WLAN_CAPABILITY_IBSS) 6991 if ((network->ssid_len == 6992 priv->assoc_network->ssid_len) && 6993 !memcmp(network->ssid, 6994 priv->assoc_network->ssid, 6995 network->ssid_len)) { 6996 schedule_work(&priv->merge_networks); 6997 } 6998 } 6999 7000 return 0; 7001} 7002 7003/* 7004* This function set up the firmware to support QoS. It sends 7005* IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO 7006*/ 7007static int ipw_qos_activate(struct ipw_priv *priv, 7008 struct libipw_qos_data *qos_network_data) 7009{ 7010 int err; 7011 struct libipw_qos_parameters qos_parameters[QOS_QOS_SETS]; 7012 struct libipw_qos_parameters *active_one = NULL; 7013 u32 size = sizeof(struct libipw_qos_parameters); 7014 u32 burst_duration; 7015 int i; 7016 u8 type; 7017 7018 type = ipw_qos_current_mode(priv); 7019 7020 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]); 7021 memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size); 7022 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]); 7023 memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size); 7024 7025 if (qos_network_data == NULL) { 7026 if (type == IEEE_B) { 7027 IPW_DEBUG_QOS("QoS activate network mode %d\n", type); 7028 active_one = &def_parameters_CCK; 7029 } else 7030 active_one = &def_parameters_OFDM; 7031 7032 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); 7033 burst_duration = ipw_qos_get_burst_duration(priv); 7034 for (i = 0; i < QOS_QUEUE_NUM; i++) 7035 qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] = 7036 cpu_to_le16(burst_duration); 7037 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 7038 if (type == IEEE_B) { 7039 IPW_DEBUG_QOS("QoS activate IBSS nework mode %d\n", 7040 type); 7041 if (priv->qos_data.qos_enable == 0) 7042 active_one = &def_parameters_CCK; 7043 else 7044 active_one = priv->qos_data.def_qos_parm_CCK; 7045 } else { 7046 if (priv->qos_data.qos_enable == 0) 7047 active_one = &def_parameters_OFDM; 7048 else 7049 active_one = priv->qos_data.def_qos_parm_OFDM; 7050 } 7051 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); 7052 } else { 7053 unsigned long flags; 7054 int active; 7055 7056 spin_lock_irqsave(&priv->ieee->lock, flags); 7057 active_one = &(qos_network_data->parameters); 7058 qos_network_data->old_param_count = 7059 qos_network_data->param_count; 7060 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); 7061 active = qos_network_data->supported; 7062 spin_unlock_irqrestore(&priv->ieee->lock, flags); 7063 7064 if (active == 0) { 7065 burst_duration = ipw_qos_get_burst_duration(priv); 7066 for (i = 0; i < QOS_QUEUE_NUM; i++) 7067 qos_parameters[QOS_PARAM_SET_ACTIVE]. 7068 tx_op_limit[i] = cpu_to_le16(burst_duration); 7069 } 7070 } 7071 7072 IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n"); 7073 err = ipw_send_qos_params_command(priv, 7074 (struct libipw_qos_parameters *) 7075 &(qos_parameters[0])); 7076 if (err) 7077 IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n"); 7078 7079 return err; 7080} 7081 7082/* 7083* send IPW_CMD_WME_INFO to the firmware 7084*/ 7085static int ipw_qos_set_info_element(struct ipw_priv *priv) 7086{ 7087 int ret = 0; 7088 struct libipw_qos_information_element qos_info; 7089 7090 if (priv == NULL) 7091 return -1; 7092 7093 qos_info.elementID = QOS_ELEMENT_ID; 7094 qos_info.length = sizeof(struct libipw_qos_information_element) - 2; 7095 7096 qos_info.version = QOS_VERSION_1; 7097 qos_info.ac_info = 0; 7098 7099 memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN); 7100 qos_info.qui_type = QOS_OUI_TYPE; 7101 qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE; 7102 7103 ret = ipw_send_qos_info_command(priv, &qos_info); 7104 if (ret != 0) { 7105 IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n"); 7106 } 7107 return ret; 7108} 7109 7110/* 7111* Set the QoS parameter with the association request structure 7112*/ 7113static int ipw_qos_association(struct ipw_priv *priv, 7114 struct libipw_network *network) 7115{ 7116 int err = 0; 7117 struct libipw_qos_data *qos_data = NULL; 7118 struct libipw_qos_data ibss_data = { 7119 .supported = 1, 7120 .active = 1, 7121 }; 7122 7123 switch (priv->ieee->iw_mode) { 7124 case IW_MODE_ADHOC: 7125 BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS)); 7126 7127 qos_data = &ibss_data; 7128 break; 7129 7130 case IW_MODE_INFRA: 7131 qos_data = &network->qos_data; 7132 break; 7133 7134 default: 7135 BUG(); 7136 break; 7137 } 7138 7139 err = ipw_qos_activate(priv, qos_data); 7140 if (err) { 7141 priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC; 7142 return err; 7143 } 7144 7145 if (priv->qos_data.qos_enable && qos_data->supported) { 7146 IPW_DEBUG_QOS("QoS will be enabled for this association\n"); 7147 priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC; 7148 return ipw_qos_set_info_element(priv); 7149 } 7150 7151 return 0; 7152} 7153 7154/* 7155* handling the beaconing responses. if we get different QoS setting 7156* off the network from the associated setting, adjust the QoS 7157* setting 7158*/ 7159static int ipw_qos_association_resp(struct ipw_priv *priv, 7160 struct libipw_network *network) 7161{ 7162 int ret = 0; 7163 unsigned long flags; 7164 u32 size = sizeof(struct libipw_qos_parameters); 7165 int set_qos_param = 0; 7166 7167 if ((priv == NULL) || (network == NULL) || 7168 (priv->assoc_network == NULL)) 7169 return ret; 7170 7171 if (!(priv->status & STATUS_ASSOCIATED)) 7172 return ret; 7173 7174 if ((priv->ieee->iw_mode != IW_MODE_INFRA)) 7175 return ret; 7176 7177 spin_lock_irqsave(&priv->ieee->lock, flags); 7178 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { 7179 memcpy(&priv->assoc_network->qos_data, &network->qos_data, 7180 sizeof(struct libipw_qos_data)); 7181 priv->assoc_network->qos_data.active = 1; 7182 if ((network->qos_data.old_param_count != 7183 network->qos_data.param_count)) { 7184 set_qos_param = 1; 7185 network->qos_data.old_param_count = 7186 network->qos_data.param_count; 7187 } 7188 7189 } else { 7190 if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B)) 7191 memcpy(&priv->assoc_network->qos_data.parameters, 7192 &def_parameters_CCK, size); 7193 else 7194 memcpy(&priv->assoc_network->qos_data.parameters, 7195 &def_parameters_OFDM, size); 7196 priv->assoc_network->qos_data.active = 0; 7197 priv->assoc_network->qos_data.supported = 0; 7198 set_qos_param = 1; 7199 } 7200 7201 spin_unlock_irqrestore(&priv->ieee->lock, flags); 7202 7203 if (set_qos_param == 1) 7204 schedule_work(&priv->qos_activate); 7205 7206 return ret; 7207} 7208 7209static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv) 7210{ 7211 u32 ret = 0; 7212 7213 if ((priv == NULL)) 7214 return 0; 7215 7216 if (!(priv->ieee->modulation & LIBIPW_OFDM_MODULATION)) 7217 ret = priv->qos_data.burst_duration_CCK; 7218 else 7219 ret = priv->qos_data.burst_duration_OFDM; 7220 7221 return ret; 7222} 7223 7224/* 7225* Initialize the setting of QoS global 7226*/ 7227static void ipw_qos_init(struct ipw_priv *priv, int enable, 7228 int burst_enable, u32 burst_duration_CCK, 7229 u32 burst_duration_OFDM) 7230{ 7231 priv->qos_data.qos_enable = enable; 7232 7233 if (priv->qos_data.qos_enable) { 7234 priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK; 7235 priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM; 7236 IPW_DEBUG_QOS("QoS is enabled\n"); 7237 } else { 7238 priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK; 7239 priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM; 7240 IPW_DEBUG_QOS("QoS is not enabled\n"); 7241 } 7242 7243 priv->qos_data.burst_enable = burst_enable; 7244 7245 if (burst_enable) { 7246 priv->qos_data.burst_duration_CCK = burst_duration_CCK; 7247 priv->qos_data.burst_duration_OFDM = burst_duration_OFDM; 7248 } else { 7249 priv->qos_data.burst_duration_CCK = 0; 7250 priv->qos_data.burst_duration_OFDM = 0; 7251 } 7252} 7253 7254/* 7255* map the packet priority to the right TX Queue 7256*/ 7257static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority) 7258{ 7259 if (priority > 7 || !priv->qos_data.qos_enable) 7260 priority = 0; 7261 7262 return from_priority_to_tx_queue[priority] - 1; 7263} 7264 7265static int ipw_is_qos_active(struct net_device *dev, 7266 struct sk_buff *skb) 7267{ 7268 struct ipw_priv *priv = libipw_priv(dev); 7269 struct libipw_qos_data *qos_data = NULL; 7270 int active, supported; 7271 u8 *daddr = skb->data + ETH_ALEN; 7272 int unicast = !is_multicast_ether_addr(daddr); 7273 7274 if (!(priv->status & STATUS_ASSOCIATED)) 7275 return 0; 7276 7277 qos_data = &priv->assoc_network->qos_data; 7278 7279 if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 7280 if (unicast == 0) 7281 qos_data->active = 0; 7282 else 7283 qos_data->active = qos_data->supported; 7284 } 7285 active = qos_data->active; 7286 supported = qos_data->supported; 7287 IPW_DEBUG_QOS("QoS %d network is QoS active %d supported %d " 7288 "unicast %d\n", 7289 priv->qos_data.qos_enable, active, supported, unicast); 7290 if (active && priv->qos_data.qos_enable) 7291 return 1; 7292 7293 return 0; 7294 7295} 7296/* 7297* add QoS parameter to the TX command 7298*/ 7299static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv, 7300 u16 priority, 7301 struct tfd_data *tfd) 7302{ 7303 int tx_queue_id = 0; 7304 7305 7306 tx_queue_id = from_priority_to_tx_queue[priority] - 1; 7307 tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED; 7308 7309 if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) { 7310 tfd->tx_flags &= ~DCT_FLAG_ACK_REQD; 7311 tfd->tfd.tfd_26.mchdr.qos_ctrl |= cpu_to_le16(CTRL_QOS_NO_ACK); 7312 } 7313 return 0; 7314} 7315 7316/* 7317* background support to run QoS activate functionality 7318*/ 7319static void ipw_bg_qos_activate(struct work_struct *work) 7320{ 7321 struct ipw_priv *priv = 7322 container_of(work, struct ipw_priv, qos_activate); 7323 7324 mutex_lock(&priv->mutex); 7325 7326 if (priv->status & STATUS_ASSOCIATED) 7327 ipw_qos_activate(priv, &(priv->assoc_network->qos_data)); 7328 7329 mutex_unlock(&priv->mutex); 7330} 7331 7332static int ipw_handle_probe_response(struct net_device *dev, 7333 struct libipw_probe_response *resp, 7334 struct libipw_network *network) 7335{ 7336 struct ipw_priv *priv = libipw_priv(dev); 7337 int active_network = ((priv->status & STATUS_ASSOCIATED) && 7338 (network == priv->assoc_network)); 7339 7340 ipw_qos_handle_probe_response(priv, active_network, network); 7341 7342 return 0; 7343} 7344 7345static int ipw_handle_beacon(struct net_device *dev, 7346 struct libipw_beacon *resp, 7347 struct libipw_network *network) 7348{ 7349 struct ipw_priv *priv = libipw_priv(dev); 7350 int active_network = ((priv->status & STATUS_ASSOCIATED) && 7351 (network == priv->assoc_network)); 7352 7353 ipw_qos_handle_probe_response(priv, active_network, network); 7354 7355 return 0; 7356} 7357 7358static int ipw_handle_assoc_response(struct net_device *dev, 7359 struct libipw_assoc_response *resp, 7360 struct libipw_network *network) 7361{ 7362 struct ipw_priv *priv = libipw_priv(dev); 7363 ipw_qos_association_resp(priv, network); 7364 return 0; 7365} 7366 7367static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters 7368 *qos_param) 7369{ 7370 return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS, 7371 sizeof(*qos_param) * 3, qos_param); 7372} 7373 7374static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element 7375 *qos_param) 7376{ 7377 return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param), 7378 qos_param); 7379} 7380 7381#endif /* CONFIG_IPW2200_QOS */ 7382 7383static int ipw_associate_network(struct ipw_priv *priv, 7384 struct libipw_network *network, 7385 struct ipw_supported_rates *rates, int roaming) 7386{ 7387 int err; 7388 DECLARE_SSID_BUF(ssid); 7389 7390 if (priv->config & CFG_FIXED_RATE) 7391 ipw_set_fixed_rate(priv, network->mode); 7392 7393 if (!(priv->config & CFG_STATIC_ESSID)) { 7394 priv->essid_len = min(network->ssid_len, 7395 (u8) IW_ESSID_MAX_SIZE); 7396 memcpy(priv->essid, network->ssid, priv->essid_len); 7397 } 7398 7399 network->last_associate = jiffies; 7400 7401 memset(&priv->assoc_request, 0, sizeof(priv->assoc_request)); 7402 priv->assoc_request.channel = network->channel; 7403 priv->assoc_request.auth_key = 0; 7404 7405 if ((priv->capability & CAP_PRIVACY_ON) && 7406 (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) { 7407 priv->assoc_request.auth_type = AUTH_SHARED_KEY; 7408 priv->assoc_request.auth_key = priv->ieee->sec.active_key; 7409 7410 if (priv->ieee->sec.level == SEC_LEVEL_1) 7411 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); 7412 7413 } else if ((priv->capability & CAP_PRIVACY_ON) && 7414 (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)) 7415 priv->assoc_request.auth_type = AUTH_LEAP; 7416 else 7417 priv->assoc_request.auth_type = AUTH_OPEN; 7418 7419 if (priv->ieee->wpa_ie_len) { 7420 priv->assoc_request.policy_support = cpu_to_le16(0x02); /* RSN active */ 7421 ipw_set_rsn_capa(priv, priv->ieee->wpa_ie, 7422 priv->ieee->wpa_ie_len); 7423 } 7424 7425 /* 7426 * It is valid for our ieee device to support multiple modes, but 7427 * when it comes to associating to a given network we have to choose 7428 * just one mode. 7429 */ 7430 if (network->mode & priv->ieee->mode & IEEE_A) 7431 priv->assoc_request.ieee_mode = IPW_A_MODE; 7432 else if (network->mode & priv->ieee->mode & IEEE_G) 7433 priv->assoc_request.ieee_mode = IPW_G_MODE; 7434 else if (network->mode & priv->ieee->mode & IEEE_B) 7435 priv->assoc_request.ieee_mode = IPW_B_MODE; 7436 7437 priv->assoc_request.capability = cpu_to_le16(network->capability); 7438 if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) 7439 && !(priv->config & CFG_PREAMBLE_LONG)) { 7440 priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE; 7441 } else { 7442 priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE; 7443 7444 /* Clear the short preamble if we won't be supporting it */ 7445 priv->assoc_request.capability &= 7446 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE); 7447 } 7448 7449 /* Clear capability bits that aren't used in Ad Hoc */ 7450 if (priv->ieee->iw_mode == IW_MODE_ADHOC) 7451 priv->assoc_request.capability &= 7452 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME); 7453 7454 IPW_DEBUG_ASSOC("%ssociation attempt: '%s', channel %d, " 7455 "802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n", 7456 roaming ? "Rea" : "A", 7457 print_ssid(ssid, priv->essid, priv->essid_len), 7458 network->channel, 7459 ipw_modes[priv->assoc_request.ieee_mode], 7460 rates->num_rates, 7461 (priv->assoc_request.preamble_length == 7462 DCT_FLAG_LONG_PREAMBLE) ? "long" : "short", 7463 network->capability & 7464 WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long", 7465 priv->capability & CAP_PRIVACY_ON ? "on " : "off", 7466 priv->capability & CAP_PRIVACY_ON ? 7467 (priv->capability & CAP_SHARED_KEY ? "(shared)" : 7468 "(open)") : "", 7469 priv->capability & CAP_PRIVACY_ON ? " key=" : "", 7470 priv->capability & CAP_PRIVACY_ON ? 7471 '1' + priv->ieee->sec.active_key : '.', 7472 priv->capability & CAP_PRIVACY_ON ? '.' : ' '); 7473 7474 priv->assoc_request.beacon_interval = cpu_to_le16(network->beacon_interval); 7475 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && 7476 (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) { 7477 priv->assoc_request.assoc_type = HC_IBSS_START; 7478 priv->assoc_request.assoc_tsf_msw = 0; 7479 priv->assoc_request.assoc_tsf_lsw = 0; 7480 } else { 7481 if (unlikely(roaming)) 7482 priv->assoc_request.assoc_type = HC_REASSOCIATE; 7483 else 7484 priv->assoc_request.assoc_type = HC_ASSOCIATE; 7485 priv->assoc_request.assoc_tsf_msw = cpu_to_le32(network->time_stamp[1]); 7486 priv->assoc_request.assoc_tsf_lsw = cpu_to_le32(network->time_stamp[0]); 7487 } 7488 7489 memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN); 7490 7491 if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 7492 memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN); 7493 priv->assoc_request.atim_window = cpu_to_le16(network->atim_window); 7494 } else { 7495 memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN); 7496 priv->assoc_request.atim_window = 0; 7497 } 7498 7499 priv->assoc_request.listen_interval = cpu_to_le16(network->listen_interval); 7500 7501 err = ipw_send_ssid(priv, priv->essid, priv->essid_len); 7502 if (err) { 7503 IPW_DEBUG_HC("Attempt to send SSID command failed.\n"); 7504 return err; 7505 } 7506 7507 rates->ieee_mode = priv->assoc_request.ieee_mode; 7508 rates->purpose = IPW_RATE_CONNECT; 7509 ipw_send_supported_rates(priv, rates); 7510 7511 if (priv->assoc_request.ieee_mode == IPW_G_MODE) 7512 priv->sys_config.dot11g_auto_detection = 1; 7513 else 7514 priv->sys_config.dot11g_auto_detection = 0; 7515 7516 if (priv->ieee->iw_mode == IW_MODE_ADHOC) 7517 priv->sys_config.answer_broadcast_ssid_probe = 1; 7518 else 7519 priv->sys_config.answer_broadcast_ssid_probe = 0; 7520 7521 err = ipw_send_system_config(priv); 7522 if (err) { 7523 IPW_DEBUG_HC("Attempt to send sys config command failed.\n"); 7524 return err; 7525 } 7526 7527 IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi); 7528 err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM); 7529 if (err) { 7530 IPW_DEBUG_HC("Attempt to send associate command failed.\n"); 7531 return err; 7532 } 7533 7534 /* 7535 * If preemption is enabled, it is possible for the association 7536 * to complete before we return from ipw_send_associate. Therefore 7537 * we have to be sure and update our priviate data first. 7538 */ 7539 priv->channel = network->channel; 7540 memcpy(priv->bssid, network->bssid, ETH_ALEN); 7541 priv->status |= STATUS_ASSOCIATING; 7542 priv->status &= ~STATUS_SECURITY_UPDATED; 7543 7544 priv->assoc_network = network; 7545 7546#ifdef CONFIG_IPW2200_QOS 7547 ipw_qos_association(priv, network); 7548#endif 7549 7550 err = ipw_send_associate(priv, &priv->assoc_request); 7551 if (err) { 7552 IPW_DEBUG_HC("Attempt to send associate command failed.\n"); 7553 return err; 7554 } 7555 7556 IPW_DEBUG(IPW_DL_STATE, "associating: '%s' %pM\n", 7557 print_ssid(ssid, priv->essid, priv->essid_len), 7558 priv->bssid); 7559 7560 return 0; 7561} 7562 7563static void ipw_roam(void *data) 7564{ 7565 struct ipw_priv *priv = data; 7566 struct libipw_network *network = NULL; 7567 struct ipw_network_match match = { 7568 .network = priv->assoc_network 7569 }; 7570 7571 /* The roaming process is as follows: 7572 * 7573 * 1. Missed beacon threshold triggers the roaming process by 7574 * setting the status ROAM bit and requesting a scan. 7575 * 2. When the scan completes, it schedules the ROAM work 7576 * 3. The ROAM work looks at all of the known networks for one that 7577 * is a better network than the currently associated. If none 7578 * found, the ROAM process is over (ROAM bit cleared) 7579 * 4. If a better network is found, a disassociation request is 7580 * sent. 7581 * 5. When the disassociation completes, the roam work is again 7582 * scheduled. The second time through, the driver is no longer 7583 * associated, and the newly selected network is sent an 7584 * association request. 7585 * 6. At this point ,the roaming process is complete and the ROAM 7586 * status bit is cleared. 7587 */ 7588 7589 /* If we are no longer associated, and the roaming bit is no longer 7590 * set, then we are not actively roaming, so just return */ 7591 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING))) 7592 return; 7593 7594 if (priv->status & STATUS_ASSOCIATED) { 7595 /* First pass through ROAM process -- look for a better 7596 * network */ 7597 unsigned long flags; 7598 u8 rssi = priv->assoc_network->stats.rssi; 7599 priv->assoc_network->stats.rssi = -128; 7600 spin_lock_irqsave(&priv->ieee->lock, flags); 7601 list_for_each_entry(network, &priv->ieee->network_list, list) { 7602 if (network != priv->assoc_network) 7603 ipw_best_network(priv, &match, network, 1); 7604 } 7605 spin_unlock_irqrestore(&priv->ieee->lock, flags); 7606 priv->assoc_network->stats.rssi = rssi; 7607 7608 if (match.network == priv->assoc_network) { 7609 IPW_DEBUG_ASSOC("No better APs in this network to " 7610 "roam to.\n"); 7611 priv->status &= ~STATUS_ROAMING; 7612 ipw_debug_config(priv); 7613 return; 7614 } 7615 7616 ipw_send_disassociate(priv, 1); 7617 priv->assoc_network = match.network; 7618 7619 return; 7620 } 7621 7622 /* Second pass through ROAM process -- request association */ 7623 ipw_compatible_rates(priv, priv->assoc_network, &match.rates); 7624 ipw_associate_network(priv, priv->assoc_network, &match.rates, 1); 7625 priv->status &= ~STATUS_ROAMING; 7626} 7627 7628static void ipw_bg_roam(struct work_struct *work) 7629{ 7630 struct ipw_priv *priv = 7631 container_of(work, struct ipw_priv, roam); 7632 mutex_lock(&priv->mutex); 7633 ipw_roam(priv); 7634 mutex_unlock(&priv->mutex); 7635} 7636 7637static int ipw_associate(void *data) 7638{ 7639 struct ipw_priv *priv = data; 7640 7641 struct libipw_network *network = NULL; 7642 struct ipw_network_match match = { 7643 .network = NULL 7644 }; 7645 struct ipw_supported_rates *rates; 7646 struct list_head *element; 7647 unsigned long flags; 7648 DECLARE_SSID_BUF(ssid); 7649 7650 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 7651 IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n"); 7652 return 0; 7653 } 7654 7655 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { 7656 IPW_DEBUG_ASSOC("Not attempting association (already in " 7657 "progress)\n"); 7658 return 0; 7659 } 7660 7661 if (priv->status & STATUS_DISASSOCIATING) { 7662 IPW_DEBUG_ASSOC("Not attempting association (in " 7663 "disassociating)\n "); 7664 schedule_work(&priv->associate); 7665 return 0; 7666 } 7667 7668 if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) { 7669 IPW_DEBUG_ASSOC("Not attempting association (scanning or not " 7670 "initialized)\n"); 7671 return 0; 7672 } 7673 7674 if (!(priv->config & CFG_ASSOCIATE) && 7675 !(priv->config & (CFG_STATIC_ESSID | CFG_STATIC_BSSID))) { 7676 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n"); 7677 return 0; 7678 } 7679 7680 /* Protect our use of the network_list */ 7681 spin_lock_irqsave(&priv->ieee->lock, flags); 7682 list_for_each_entry(network, &priv->ieee->network_list, list) 7683 ipw_best_network(priv, &match, network, 0); 7684 7685 network = match.network; 7686 rates = &match.rates; 7687 7688 if (network == NULL && 7689 priv->ieee->iw_mode == IW_MODE_ADHOC && 7690 priv->config & CFG_ADHOC_CREATE && 7691 priv->config & CFG_STATIC_ESSID && 7692 priv->config & CFG_STATIC_CHANNEL) { 7693 /* Use oldest network if the free list is empty */ 7694 if (list_empty(&priv->ieee->network_free_list)) { 7695 struct libipw_network *oldest = NULL; 7696 struct libipw_network *target; 7697 7698 list_for_each_entry(target, &priv->ieee->network_list, list) { 7699 if ((oldest == NULL) || 7700 (target->last_scanned < oldest->last_scanned)) 7701 oldest = target; 7702 } 7703 7704 /* If there are no more slots, expire the oldest */ 7705 list_del(&oldest->list); 7706 target = oldest; 7707 IPW_DEBUG_ASSOC("Expired '%s' (%pM) from " 7708 "network list.\n", 7709 print_ssid(ssid, target->ssid, 7710 target->ssid_len), 7711 target->bssid); 7712 list_add_tail(&target->list, 7713 &priv->ieee->network_free_list); 7714 } 7715 7716 element = priv->ieee->network_free_list.next; 7717 network = list_entry(element, struct libipw_network, list); 7718 ipw_adhoc_create(priv, network); 7719 rates = &priv->rates; 7720 list_del(element); 7721 list_add_tail(&network->list, &priv->ieee->network_list); 7722 } 7723 spin_unlock_irqrestore(&priv->ieee->lock, flags); 7724 7725 /* If we reached the end of the list, then we don't have any valid 7726 * matching APs */ 7727 if (!network) { 7728 ipw_debug_config(priv); 7729 7730 if (!(priv->status & STATUS_SCANNING)) { 7731 if (!(priv->config & CFG_SPEED_SCAN)) 7732 schedule_delayed_work(&priv->request_scan, 7733 SCAN_INTERVAL); 7734 else 7735 schedule_delayed_work(&priv->request_scan, 0); 7736 } 7737 7738 return 0; 7739 } 7740 7741 ipw_associate_network(priv, network, rates, 0); 7742 7743 return 1; 7744} 7745 7746static void ipw_bg_associate(struct work_struct *work) 7747{ 7748 struct ipw_priv *priv = 7749 container_of(work, struct ipw_priv, associate); 7750 mutex_lock(&priv->mutex); 7751 ipw_associate(priv); 7752 mutex_unlock(&priv->mutex); 7753} 7754 7755static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv, 7756 struct sk_buff *skb) 7757{ 7758 struct ieee80211_hdr *hdr; 7759 u16 fc; 7760 7761 hdr = (struct ieee80211_hdr *)skb->data; 7762 fc = le16_to_cpu(hdr->frame_control); 7763 if (!(fc & IEEE80211_FCTL_PROTECTED)) 7764 return; 7765 7766 fc &= ~IEEE80211_FCTL_PROTECTED; 7767 hdr->frame_control = cpu_to_le16(fc); 7768 switch (priv->ieee->sec.level) { 7769 case SEC_LEVEL_3: 7770 /* Remove CCMP HDR */ 7771 memmove(skb->data + LIBIPW_3ADDR_LEN, 7772 skb->data + LIBIPW_3ADDR_LEN + 8, 7773 skb->len - LIBIPW_3ADDR_LEN - 8); 7774 skb_trim(skb, skb->len - 16); /* CCMP_HDR_LEN + CCMP_MIC_LEN */ 7775 break; 7776 case SEC_LEVEL_2: 7777 break; 7778 case SEC_LEVEL_1: 7779 /* Remove IV */ 7780 memmove(skb->data + LIBIPW_3ADDR_LEN, 7781 skb->data + LIBIPW_3ADDR_LEN + 4, 7782 skb->len - LIBIPW_3ADDR_LEN - 4); 7783 skb_trim(skb, skb->len - 8); /* IV + ICV */ 7784 break; 7785 case SEC_LEVEL_0: 7786 break; 7787 default: 7788 printk(KERN_ERR "Unknown security level %d\n", 7789 priv->ieee->sec.level); 7790 break; 7791 } 7792} 7793 7794static void ipw_handle_data_packet(struct ipw_priv *priv, 7795 struct ipw_rx_mem_buffer *rxb, 7796 struct libipw_rx_stats *stats) 7797{ 7798 struct net_device *dev = priv->net_dev; 7799 struct libipw_hdr_4addr *hdr; 7800 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; 7801 7802 /* We received data from the HW, so stop the watchdog */ 7803 dev->trans_start = jiffies; 7804 7805 /* We only process data packets if the 7806 * interface is open */ 7807 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) > 7808 skb_tailroom(rxb->skb))) { 7809 dev->stats.rx_errors++; 7810 priv->wstats.discard.misc++; 7811 IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); 7812 return; 7813 } else if (unlikely(!netif_running(priv->net_dev))) { 7814 dev->stats.rx_dropped++; 7815 priv->wstats.discard.misc++; 7816 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); 7817 return; 7818 } 7819 7820 /* Advance skb->data to the start of the actual payload */ 7821 skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data)); 7822 7823 /* Set the size of the skb to the size of the frame */ 7824 skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length)); 7825 7826 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); 7827 7828 /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */ 7829 hdr = (struct libipw_hdr_4addr *)rxb->skb->data; 7830 if (priv->ieee->iw_mode != IW_MODE_MONITOR && 7831 (is_multicast_ether_addr(hdr->addr1) ? 7832 !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt)) 7833 ipw_rebuild_decrypted_skb(priv, rxb->skb); 7834 7835 if (!libipw_rx(priv->ieee, rxb->skb, stats)) 7836 dev->stats.rx_errors++; 7837 else { /* libipw_rx succeeded, so it now owns the SKB */ 7838 rxb->skb = NULL; 7839 __ipw_led_activity_on(priv); 7840 } 7841} 7842 7843#ifdef CONFIG_IPW2200_RADIOTAP 7844static void ipw_handle_data_packet_monitor(struct ipw_priv *priv, 7845 struct ipw_rx_mem_buffer *rxb, 7846 struct libipw_rx_stats *stats) 7847{ 7848 struct net_device *dev = priv->net_dev; 7849 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; 7850 struct ipw_rx_frame *frame = &pkt->u.frame; 7851 7852 /* initial pull of some data */ 7853 u16 received_channel = frame->received_channel; 7854 u8 antennaAndPhy = frame->antennaAndPhy; 7855 s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM; /* call it signed anyhow */ 7856 u16 pktrate = frame->rate; 7857 7858 /* Magic struct that slots into the radiotap header -- no reason 7859 * to build this manually element by element, we can write it much 7860 * more efficiently than we can parse it. ORDER MATTERS HERE */ 7861 struct ipw_rt_hdr *ipw_rt; 7862 7863 unsigned short len = le16_to_cpu(pkt->u.frame.length); 7864 7865 /* We received data from the HW, so stop the watchdog */ 7866 dev->trans_start = jiffies; 7867 7868 /* We only process data packets if the 7869 * interface is open */ 7870 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) > 7871 skb_tailroom(rxb->skb))) { 7872 dev->stats.rx_errors++; 7873 priv->wstats.discard.misc++; 7874 IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); 7875 return; 7876 } else if (unlikely(!netif_running(priv->net_dev))) { 7877 dev->stats.rx_dropped++; 7878 priv->wstats.discard.misc++; 7879 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); 7880 return; 7881 } 7882 7883 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use 7884 * that now */ 7885 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) { 7886 /* FIXME: Should alloc bigger skb instead */ 7887 dev->stats.rx_dropped++; 7888 priv->wstats.discard.misc++; 7889 IPW_DEBUG_DROP("Dropping too large packet in monitor\n"); 7890 return; 7891 } 7892 7893 /* copy the frame itself */ 7894 memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr), 7895 rxb->skb->data + IPW_RX_FRAME_SIZE, len); 7896 7897 ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data; 7898 7899 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; 7900 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ 7901 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total header+data */ 7902 7903 /* Big bitfield of all the fields we provide in radiotap */ 7904 ipw_rt->rt_hdr.it_present = cpu_to_le32( 7905 (1 << IEEE80211_RADIOTAP_TSFT) | 7906 (1 << IEEE80211_RADIOTAP_FLAGS) | 7907 (1 << IEEE80211_RADIOTAP_RATE) | 7908 (1 << IEEE80211_RADIOTAP_CHANNEL) | 7909 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | 7910 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | 7911 (1 << IEEE80211_RADIOTAP_ANTENNA)); 7912 7913 /* Zero the flags, we'll add to them as we go */ 7914 ipw_rt->rt_flags = 0; 7915 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | 7916 frame->parent_tsf[2] << 16 | 7917 frame->parent_tsf[1] << 8 | 7918 frame->parent_tsf[0]); 7919 7920 /* Convert signal to DBM */ 7921 ipw_rt->rt_dbmsignal = antsignal; 7922 ipw_rt->rt_dbmnoise = (s8) le16_to_cpu(frame->noise); 7923 7924 /* Convert the channel data and set the flags */ 7925 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel)); 7926 if (received_channel > 14) { /* 802.11a */ 7927 ipw_rt->rt_chbitmask = 7928 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); 7929 } else if (antennaAndPhy & 32) { /* 802.11b */ 7930 ipw_rt->rt_chbitmask = 7931 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); 7932 } else { /* 802.11g */ 7933 ipw_rt->rt_chbitmask = 7934 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ); 7935 } 7936 7937 /* set the rate in multiples of 500k/s */ 7938 switch (pktrate) { 7939 case IPW_TX_RATE_1MB: 7940 ipw_rt->rt_rate = 2; 7941 break; 7942 case IPW_TX_RATE_2MB: 7943 ipw_rt->rt_rate = 4; 7944 break; 7945 case IPW_TX_RATE_5MB: 7946 ipw_rt->rt_rate = 10; 7947 break; 7948 case IPW_TX_RATE_6MB: 7949 ipw_rt->rt_rate = 12; 7950 break; 7951 case IPW_TX_RATE_9MB: 7952 ipw_rt->rt_rate = 18; 7953 break; 7954 case IPW_TX_RATE_11MB: 7955 ipw_rt->rt_rate = 22; 7956 break; 7957 case IPW_TX_RATE_12MB: 7958 ipw_rt->rt_rate = 24; 7959 break; 7960 case IPW_TX_RATE_18MB: 7961 ipw_rt->rt_rate = 36; 7962 break; 7963 case IPW_TX_RATE_24MB: 7964 ipw_rt->rt_rate = 48; 7965 break; 7966 case IPW_TX_RATE_36MB: 7967 ipw_rt->rt_rate = 72; 7968 break; 7969 case IPW_TX_RATE_48MB: 7970 ipw_rt->rt_rate = 96; 7971 break; 7972 case IPW_TX_RATE_54MB: 7973 ipw_rt->rt_rate = 108; 7974 break; 7975 default: 7976 ipw_rt->rt_rate = 0; 7977 break; 7978 } 7979 7980 /* antenna number */ 7981 ipw_rt->rt_antenna = (antennaAndPhy & 3); /* Is this right? */ 7982 7983 /* set the preamble flag if we have it */ 7984 if ((antennaAndPhy & 64)) 7985 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 7986 7987 /* Set the size of the skb to the size of the frame */ 7988 skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr)); 7989 7990 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); 7991 7992 if (!libipw_rx(priv->ieee, rxb->skb, stats)) 7993 dev->stats.rx_errors++; 7994 else { /* libipw_rx succeeded, so it now owns the SKB */ 7995 rxb->skb = NULL; 7996 /* no LED during capture */ 7997 } 7998} 7999#endif 8000 8001#ifdef CONFIG_IPW2200_PROMISCUOUS 8002#define libipw_is_probe_response(fc) \ 8003 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \ 8004 (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP ) 8005 8006#define libipw_is_management(fc) \ 8007 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) 8008 8009#define libipw_is_control(fc) \ 8010 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) 8011 8012#define libipw_is_data(fc) \ 8013 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) 8014 8015#define libipw_is_assoc_request(fc) \ 8016 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ) 8017 8018#define libipw_is_reassoc_request(fc) \ 8019 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ) 8020 8021static void ipw_handle_promiscuous_rx(struct ipw_priv *priv, 8022 struct ipw_rx_mem_buffer *rxb, 8023 struct libipw_rx_stats *stats) 8024{ 8025 struct net_device *dev = priv->prom_net_dev; 8026 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; 8027 struct ipw_rx_frame *frame = &pkt->u.frame; 8028 struct ipw_rt_hdr *ipw_rt; 8029 8030 /* First cache any information we need before we overwrite 8031 * the information provided in the skb from the hardware */ 8032 struct ieee80211_hdr *hdr; 8033 u16 channel = frame->received_channel; 8034 u8 phy_flags = frame->antennaAndPhy; 8035 s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM; 8036 s8 noise = (s8) le16_to_cpu(frame->noise); 8037 u8 rate = frame->rate; 8038 unsigned short len = le16_to_cpu(pkt->u.frame.length); 8039 struct sk_buff *skb; 8040 int hdr_only = 0; 8041 u16 filter = priv->prom_priv->filter; 8042 8043 /* If the filter is set to not include Rx frames then return */ 8044 if (filter & IPW_PROM_NO_RX) 8045 return; 8046 8047 /* We received data from the HW, so stop the watchdog */ 8048 dev->trans_start = jiffies; 8049 8050 if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) { 8051 dev->stats.rx_errors++; 8052 IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); 8053 return; 8054 } 8055 8056 /* We only process data packets if the interface is open */ 8057 if (unlikely(!netif_running(dev))) { 8058 dev->stats.rx_dropped++; 8059 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); 8060 return; 8061 } 8062 8063 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use 8064 * that now */ 8065 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) { 8066 /* FIXME: Should alloc bigger skb instead */ 8067 dev->stats.rx_dropped++; 8068 IPW_DEBUG_DROP("Dropping too large packet in monitor\n"); 8069 return; 8070 } 8071 8072 hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE; 8073 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) { 8074 if (filter & IPW_PROM_NO_MGMT) 8075 return; 8076 if (filter & IPW_PROM_MGMT_HEADER_ONLY) 8077 hdr_only = 1; 8078 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) { 8079 if (filter & IPW_PROM_NO_CTL) 8080 return; 8081 if (filter & IPW_PROM_CTL_HEADER_ONLY) 8082 hdr_only = 1; 8083 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) { 8084 if (filter & IPW_PROM_NO_DATA) 8085 return; 8086 if (filter & IPW_PROM_DATA_HEADER_ONLY) 8087 hdr_only = 1; 8088 } 8089 8090 /* Copy the SKB since this is for the promiscuous side */ 8091 skb = skb_copy(rxb->skb, GFP_ATOMIC); 8092 if (skb == NULL) { 8093 IPW_ERROR("skb_clone failed for promiscuous copy.\n"); 8094 return; 8095 } 8096 8097 /* copy the frame data to write after where the radiotap header goes */ 8098 ipw_rt = (void *)skb->data; 8099 8100 if (hdr_only) 8101 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control)); 8102 8103 memcpy(ipw_rt->payload, hdr, len); 8104 8105 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; 8106 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ 8107 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*ipw_rt)); /* total header+data */ 8108 8109 /* Set the size of the skb to the size of the frame */ 8110 skb_put(skb, sizeof(*ipw_rt) + len); 8111 8112 /* Big bitfield of all the fields we provide in radiotap */ 8113 ipw_rt->rt_hdr.it_present = cpu_to_le32( 8114 (1 << IEEE80211_RADIOTAP_TSFT) | 8115 (1 << IEEE80211_RADIOTAP_FLAGS) | 8116 (1 << IEEE80211_RADIOTAP_RATE) | 8117 (1 << IEEE80211_RADIOTAP_CHANNEL) | 8118 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | 8119 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | 8120 (1 << IEEE80211_RADIOTAP_ANTENNA)); 8121 8122 /* Zero the flags, we'll add to them as we go */ 8123 ipw_rt->rt_flags = 0; 8124 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | 8125 frame->parent_tsf[2] << 16 | 8126 frame->parent_tsf[1] << 8 | 8127 frame->parent_tsf[0]); 8128 8129 /* Convert to DBM */ 8130 ipw_rt->rt_dbmsignal = signal; 8131 ipw_rt->rt_dbmnoise = noise; 8132 8133 /* Convert the channel data and set the flags */ 8134 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel)); 8135 if (channel > 14) { /* 802.11a */ 8136 ipw_rt->rt_chbitmask = 8137 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); 8138 } else if (phy_flags & (1 << 5)) { /* 802.11b */ 8139 ipw_rt->rt_chbitmask = 8140 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); 8141 } else { /* 802.11g */ 8142 ipw_rt->rt_chbitmask = 8143 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ); 8144 } 8145 8146 /* set the rate in multiples of 500k/s */ 8147 switch (rate) { 8148 case IPW_TX_RATE_1MB: 8149 ipw_rt->rt_rate = 2; 8150 break; 8151 case IPW_TX_RATE_2MB: 8152 ipw_rt->rt_rate = 4; 8153 break; 8154 case IPW_TX_RATE_5MB: 8155 ipw_rt->rt_rate = 10; 8156 break; 8157 case IPW_TX_RATE_6MB: 8158 ipw_rt->rt_rate = 12; 8159 break; 8160 case IPW_TX_RATE_9MB: 8161 ipw_rt->rt_rate = 18; 8162 break; 8163 case IPW_TX_RATE_11MB: 8164 ipw_rt->rt_rate = 22; 8165 break; 8166 case IPW_TX_RATE_12MB: 8167 ipw_rt->rt_rate = 24; 8168 break; 8169 case IPW_TX_RATE_18MB: 8170 ipw_rt->rt_rate = 36; 8171 break; 8172 case IPW_TX_RATE_24MB: 8173 ipw_rt->rt_rate = 48; 8174 break; 8175 case IPW_TX_RATE_36MB: 8176 ipw_rt->rt_rate = 72; 8177 break; 8178 case IPW_TX_RATE_48MB: 8179 ipw_rt->rt_rate = 96; 8180 break; 8181 case IPW_TX_RATE_54MB: 8182 ipw_rt->rt_rate = 108; 8183 break; 8184 default: 8185 ipw_rt->rt_rate = 0; 8186 break; 8187 } 8188 8189 /* antenna number */ 8190 ipw_rt->rt_antenna = (phy_flags & 3); 8191 8192 /* set the preamble flag if we have it */ 8193 if (phy_flags & (1 << 6)) 8194 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 8195 8196 IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len); 8197 8198 if (!libipw_rx(priv->prom_priv->ieee, skb, stats)) { 8199 dev->stats.rx_errors++; 8200 dev_kfree_skb_any(skb); 8201 } 8202} 8203#endif 8204 8205static int is_network_packet(struct ipw_priv *priv, 8206 struct libipw_hdr_4addr *header) 8207{ 8208 /* Filter incoming packets to determine if they are targeted toward 8209 * this network, discarding packets coming from ourselves */ 8210 switch (priv->ieee->iw_mode) { 8211 case IW_MODE_ADHOC: /* Header: Dest. | Source | BSSID */ 8212 /* packets from our adapter are dropped (echo) */ 8213 if (!memcmp(header->addr2, priv->net_dev->dev_addr, ETH_ALEN)) 8214 return 0; 8215 8216 /* {broad,multi}cast packets to our BSSID go through */ 8217 if (is_multicast_ether_addr(header->addr1)) 8218 return !memcmp(header->addr3, priv->bssid, ETH_ALEN); 8219 8220 /* packets to our adapter go through */ 8221 return !memcmp(header->addr1, priv->net_dev->dev_addr, 8222 ETH_ALEN); 8223 8224 case IW_MODE_INFRA: /* Header: Dest. | BSSID | Source */ 8225 /* packets from our adapter are dropped (echo) */ 8226 if (!memcmp(header->addr3, priv->net_dev->dev_addr, ETH_ALEN)) 8227 return 0; 8228 8229 /* {broad,multi}cast packets to our BSS go through */ 8230 if (is_multicast_ether_addr(header->addr1)) 8231 return !memcmp(header->addr2, priv->bssid, ETH_ALEN); 8232 8233 /* packets to our adapter go through */ 8234 return !memcmp(header->addr1, priv->net_dev->dev_addr, 8235 ETH_ALEN); 8236 } 8237 8238 return 1; 8239} 8240 8241#define IPW_PACKET_RETRY_TIME HZ 8242 8243static int is_duplicate_packet(struct ipw_priv *priv, 8244 struct libipw_hdr_4addr *header) 8245{ 8246 u16 sc = le16_to_cpu(header->seq_ctl); 8247 u16 seq = WLAN_GET_SEQ_SEQ(sc); 8248 u16 frag = WLAN_GET_SEQ_FRAG(sc); 8249 u16 *last_seq, *last_frag; 8250 unsigned long *last_time; 8251 8252 switch (priv->ieee->iw_mode) { 8253 case IW_MODE_ADHOC: 8254 { 8255 struct list_head *p; 8256 struct ipw_ibss_seq *entry = NULL; 8257 u8 *mac = header->addr2; 8258 int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE; 8259 8260 __list_for_each(p, &priv->ibss_mac_hash[index]) { 8261 entry = 8262 list_entry(p, struct ipw_ibss_seq, list); 8263 if (!memcmp(entry->mac, mac, ETH_ALEN)) 8264 break; 8265 } 8266 if (p == &priv->ibss_mac_hash[index]) { 8267 entry = kmalloc(sizeof(*entry), GFP_ATOMIC); 8268 if (!entry) { 8269 IPW_ERROR 8270 ("Cannot malloc new mac entry\n"); 8271 return 0; 8272 } 8273 memcpy(entry->mac, mac, ETH_ALEN); 8274 entry->seq_num = seq; 8275 entry->frag_num = frag; 8276 entry->packet_time = jiffies; 8277 list_add(&entry->list, 8278 &priv->ibss_mac_hash[index]); 8279 return 0; 8280 } 8281 last_seq = &entry->seq_num; 8282 last_frag = &entry->frag_num; 8283 last_time = &entry->packet_time; 8284 break; 8285 } 8286 case IW_MODE_INFRA: 8287 last_seq = &priv->last_seq_num; 8288 last_frag = &priv->last_frag_num; 8289 last_time = &priv->last_packet_time; 8290 break; 8291 default: 8292 return 0; 8293 } 8294 if ((*last_seq == seq) && 8295 time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) { 8296 if (*last_frag == frag) 8297 goto drop; 8298 if (*last_frag + 1 != frag) 8299 /* out-of-order fragment */ 8300 goto drop; 8301 } else 8302 *last_seq = seq; 8303 8304 *last_frag = frag; 8305 *last_time = jiffies; 8306 return 0; 8307 8308 drop: 8309 /* Comment this line now since we observed the card receives 8310 * duplicate packets but the FCTL_RETRY bit is not set in the 8311 * IBSS mode with fragmentation enabled. 8312 BUG_ON(!(le16_to_cpu(header->frame_control) & IEEE80211_FCTL_RETRY)); */ 8313 return 1; 8314} 8315 8316static void ipw_handle_mgmt_packet(struct ipw_priv *priv, 8317 struct ipw_rx_mem_buffer *rxb, 8318 struct libipw_rx_stats *stats) 8319{ 8320 struct sk_buff *skb = rxb->skb; 8321 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data; 8322 struct libipw_hdr_4addr *header = (struct libipw_hdr_4addr *) 8323 (skb->data + IPW_RX_FRAME_SIZE); 8324 8325 libipw_rx_mgt(priv->ieee, header, stats); 8326 8327 if (priv->ieee->iw_mode == IW_MODE_ADHOC && 8328 ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == 8329 IEEE80211_STYPE_PROBE_RESP) || 8330 (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == 8331 IEEE80211_STYPE_BEACON))) { 8332 if (!memcmp(header->addr3, priv->bssid, ETH_ALEN)) 8333 ipw_add_station(priv, header->addr2); 8334 } 8335 8336 if (priv->config & CFG_NET_STATS) { 8337 IPW_DEBUG_HC("sending stat packet\n"); 8338 8339 /* Set the size of the skb to the size of the full 8340 * ipw header and 802.11 frame */ 8341 skb_put(skb, le16_to_cpu(pkt->u.frame.length) + 8342 IPW_RX_FRAME_SIZE); 8343 8344 /* Advance past the ipw packet header to the 802.11 frame */ 8345 skb_pull(skb, IPW_RX_FRAME_SIZE); 8346 8347 /* Push the libipw_rx_stats before the 802.11 frame */ 8348 memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats)); 8349 8350 skb->dev = priv->ieee->dev; 8351 8352 /* Point raw at the libipw_stats */ 8353 skb_reset_mac_header(skb); 8354 8355 skb->pkt_type = PACKET_OTHERHOST; 8356 skb->protocol = cpu_to_be16(ETH_P_80211_STATS); 8357 memset(skb->cb, 0, sizeof(rxb->skb->cb)); 8358 netif_rx(skb); 8359 rxb->skb = NULL; 8360 } 8361} 8362 8363/* 8364 * Main entry function for receiving a packet with 80211 headers. This 8365 * should be called when ever the FW has notified us that there is a new 8366 * skb in the receive queue. 8367 */ 8368static void ipw_rx(struct ipw_priv *priv) 8369{ 8370 struct ipw_rx_mem_buffer *rxb; 8371 struct ipw_rx_packet *pkt; 8372 struct libipw_hdr_4addr *header; 8373 u32 r, w, i; 8374 u8 network_packet; 8375 u8 fill_rx = 0; 8376 8377 r = ipw_read32(priv, IPW_RX_READ_INDEX); 8378 w = ipw_read32(priv, IPW_RX_WRITE_INDEX); 8379 i = priv->rxq->read; 8380 8381 if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2)) 8382 fill_rx = 1; 8383 8384 while (i != r) { 8385 rxb = priv->rxq->queue[i]; 8386 if (unlikely(rxb == NULL)) { 8387 printk(KERN_CRIT "Queue not allocated!\n"); 8388 break; 8389 } 8390 priv->rxq->queue[i] = NULL; 8391 8392 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, 8393 IPW_RX_BUF_SIZE, 8394 PCI_DMA_FROMDEVICE); 8395 8396 pkt = (struct ipw_rx_packet *)rxb->skb->data; 8397 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n", 8398 pkt->header.message_type, 8399 pkt->header.rx_seq_num, pkt->header.control_bits); 8400 8401 switch (pkt->header.message_type) { 8402 case RX_FRAME_TYPE: /* 802.11 frame */ { 8403 struct libipw_rx_stats stats = { 8404 .rssi = pkt->u.frame.rssi_dbm - 8405 IPW_RSSI_TO_DBM, 8406 .signal = 8407 pkt->u.frame.rssi_dbm - 8408 IPW_RSSI_TO_DBM + 0x100, 8409 .noise = 8410 le16_to_cpu(pkt->u.frame.noise), 8411 .rate = pkt->u.frame.rate, 8412 .mac_time = jiffies, 8413 .received_channel = 8414 pkt->u.frame.received_channel, 8415 .freq = 8416 (pkt->u.frame. 8417 control & (1 << 0)) ? 8418 LIBIPW_24GHZ_BAND : 8419 LIBIPW_52GHZ_BAND, 8420 .len = le16_to_cpu(pkt->u.frame.length), 8421 }; 8422 8423 if (stats.rssi != 0) 8424 stats.mask |= LIBIPW_STATMASK_RSSI; 8425 if (stats.signal != 0) 8426 stats.mask |= LIBIPW_STATMASK_SIGNAL; 8427 if (stats.noise != 0) 8428 stats.mask |= LIBIPW_STATMASK_NOISE; 8429 if (stats.rate != 0) 8430 stats.mask |= LIBIPW_STATMASK_RATE; 8431 8432 priv->rx_packets++; 8433 8434#ifdef CONFIG_IPW2200_PROMISCUOUS 8435 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) 8436 ipw_handle_promiscuous_rx(priv, rxb, &stats); 8437#endif 8438 8439#ifdef CONFIG_IPW2200_MONITOR 8440 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 8441#ifdef CONFIG_IPW2200_RADIOTAP 8442 8443 ipw_handle_data_packet_monitor(priv, 8444 rxb, 8445 &stats); 8446#else 8447 ipw_handle_data_packet(priv, rxb, 8448 &stats); 8449#endif 8450 break; 8451 } 8452#endif 8453 8454 header = 8455 (struct libipw_hdr_4addr *)(rxb->skb-> 8456 data + 8457 IPW_RX_FRAME_SIZE); 8458 /* TODO: Check Ad-Hoc dest/source and make sure 8459 * that we are actually parsing these packets 8460 * correctly -- we should probably use the 8461 * frame control of the packet and disregard 8462 * the current iw_mode */ 8463 8464 network_packet = 8465 is_network_packet(priv, header); 8466 if (network_packet && priv->assoc_network) { 8467 priv->assoc_network->stats.rssi = 8468 stats.rssi; 8469 priv->exp_avg_rssi = 8470 exponential_average(priv->exp_avg_rssi, 8471 stats.rssi, DEPTH_RSSI); 8472 } 8473 8474 IPW_DEBUG_RX("Frame: len=%u\n", 8475 le16_to_cpu(pkt->u.frame.length)); 8476 8477 if (le16_to_cpu(pkt->u.frame.length) < 8478 libipw_get_hdrlen(le16_to_cpu( 8479 header->frame_ctl))) { 8480 IPW_DEBUG_DROP 8481 ("Received packet is too small. " 8482 "Dropping.\n"); 8483 priv->net_dev->stats.rx_errors++; 8484 priv->wstats.discard.misc++; 8485 break; 8486 } 8487 8488 switch (WLAN_FC_GET_TYPE 8489 (le16_to_cpu(header->frame_ctl))) { 8490 8491 case IEEE80211_FTYPE_MGMT: 8492 ipw_handle_mgmt_packet(priv, rxb, 8493 &stats); 8494 break; 8495 8496 case IEEE80211_FTYPE_CTL: 8497 break; 8498 8499 case IEEE80211_FTYPE_DATA: 8500 if (unlikely(!network_packet || 8501 is_duplicate_packet(priv, 8502 header))) 8503 { 8504 IPW_DEBUG_DROP("Dropping: " 8505 "%pM, " 8506 "%pM, " 8507 "%pM\n", 8508 header->addr1, 8509 header->addr2, 8510 header->addr3); 8511 break; 8512 } 8513 8514 ipw_handle_data_packet(priv, rxb, 8515 &stats); 8516 8517 break; 8518 } 8519 break; 8520 } 8521 8522 case RX_HOST_NOTIFICATION_TYPE:{ 8523 IPW_DEBUG_RX 8524 ("Notification: subtype=%02X flags=%02X size=%d\n", 8525 pkt->u.notification.subtype, 8526 pkt->u.notification.flags, 8527 le16_to_cpu(pkt->u.notification.size)); 8528 ipw_rx_notification(priv, &pkt->u.notification); 8529 break; 8530 } 8531 8532 default: 8533 IPW_DEBUG_RX("Bad Rx packet of type %d\n", 8534 pkt->header.message_type); 8535 break; 8536 } 8537 8538 /* For now we just don't re-use anything. We can tweak this 8539 * later to try and re-use notification packets and SKBs that 8540 * fail to Rx correctly */ 8541 if (rxb->skb != NULL) { 8542 dev_kfree_skb_any(rxb->skb); 8543 rxb->skb = NULL; 8544 } 8545 8546 pci_unmap_single(priv->pci_dev, rxb->dma_addr, 8547 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); 8548 list_add_tail(&rxb->list, &priv->rxq->rx_used); 8549 8550 i = (i + 1) % RX_QUEUE_SIZE; 8551 8552 /* If there are a lot of unsued frames, restock the Rx queue 8553 * so the ucode won't assert */ 8554 if (fill_rx) { 8555 priv->rxq->read = i; 8556 ipw_rx_queue_replenish(priv); 8557 } 8558 } 8559 8560 /* Backtrack one entry */ 8561 priv->rxq->read = i; 8562 ipw_rx_queue_restock(priv); 8563} 8564 8565#define DEFAULT_RTS_THRESHOLD 2304U 8566#define MIN_RTS_THRESHOLD 1U 8567#define MAX_RTS_THRESHOLD 2304U 8568#define DEFAULT_BEACON_INTERVAL 100U 8569#define DEFAULT_SHORT_RETRY_LIMIT 7U 8570#define DEFAULT_LONG_RETRY_LIMIT 4U 8571 8572/** 8573 * ipw_sw_reset 8574 * @option: options to control different reset behaviour 8575 * 0 = reset everything except the 'disable' module_param 8576 * 1 = reset everything and print out driver info (for probe only) 8577 * 2 = reset everything 8578 */ 8579static int ipw_sw_reset(struct ipw_priv *priv, int option) 8580{ 8581 int band, modulation; 8582 int old_mode = priv->ieee->iw_mode; 8583 8584 /* Initialize module parameter values here */ 8585 priv->config = 0; 8586 8587 /* We default to disabling the LED code as right now it causes 8588 * too many systems to lock up... */ 8589 if (!led_support) 8590 priv->config |= CFG_NO_LED; 8591 8592 if (associate) 8593 priv->config |= CFG_ASSOCIATE; 8594 else 8595 IPW_DEBUG_INFO("Auto associate disabled.\n"); 8596 8597 if (auto_create) 8598 priv->config |= CFG_ADHOC_CREATE; 8599 else 8600 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n"); 8601 8602 priv->config &= ~CFG_STATIC_ESSID; 8603 priv->essid_len = 0; 8604 memset(priv->essid, 0, IW_ESSID_MAX_SIZE); 8605 8606 if (disable && option) { 8607 priv->status |= STATUS_RF_KILL_SW; 8608 IPW_DEBUG_INFO("Radio disabled.\n"); 8609 } 8610 8611 if (default_channel != 0) { 8612 priv->config |= CFG_STATIC_CHANNEL; 8613 priv->channel = default_channel; 8614 IPW_DEBUG_INFO("Bind to static channel %d\n", default_channel); 8615 /* TODO: Validate that provided channel is in range */ 8616 } 8617#ifdef CONFIG_IPW2200_QOS 8618 ipw_qos_init(priv, qos_enable, qos_burst_enable, 8619 burst_duration_CCK, burst_duration_OFDM); 8620#endif /* CONFIG_IPW2200_QOS */ 8621 8622 switch (network_mode) { 8623 case 1: 8624 priv->ieee->iw_mode = IW_MODE_ADHOC; 8625 priv->net_dev->type = ARPHRD_ETHER; 8626 8627 break; 8628#ifdef CONFIG_IPW2200_MONITOR 8629 case 2: 8630 priv->ieee->iw_mode = IW_MODE_MONITOR; 8631#ifdef CONFIG_IPW2200_RADIOTAP 8632 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; 8633#else 8634 priv->net_dev->type = ARPHRD_IEEE80211; 8635#endif 8636 break; 8637#endif 8638 default: 8639 case 0: 8640 priv->net_dev->type = ARPHRD_ETHER; 8641 priv->ieee->iw_mode = IW_MODE_INFRA; 8642 break; 8643 } 8644 8645 if (hwcrypto) { 8646 priv->ieee->host_encrypt = 0; 8647 priv->ieee->host_encrypt_msdu = 0; 8648 priv->ieee->host_decrypt = 0; 8649 priv->ieee->host_mc_decrypt = 0; 8650 } 8651 IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off"); 8652 8653 /* IPW2200/2915 is abled to do hardware fragmentation. */ 8654 priv->ieee->host_open_frag = 0; 8655 8656 if ((priv->pci_dev->device == 0x4223) || 8657 (priv->pci_dev->device == 0x4224)) { 8658 if (option == 1) 8659 printk(KERN_INFO DRV_NAME 8660 ": Detected Intel PRO/Wireless 2915ABG Network " 8661 "Connection\n"); 8662 priv->ieee->abg_true = 1; 8663 band = LIBIPW_52GHZ_BAND | LIBIPW_24GHZ_BAND; 8664 modulation = LIBIPW_OFDM_MODULATION | 8665 LIBIPW_CCK_MODULATION; 8666 priv->adapter = IPW_2915ABG; 8667 priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B; 8668 } else { 8669 if (option == 1) 8670 printk(KERN_INFO DRV_NAME 8671 ": Detected Intel PRO/Wireless 2200BG Network " 8672 "Connection\n"); 8673 8674 priv->ieee->abg_true = 0; 8675 band = LIBIPW_24GHZ_BAND; 8676 modulation = LIBIPW_OFDM_MODULATION | 8677 LIBIPW_CCK_MODULATION; 8678 priv->adapter = IPW_2200BG; 8679 priv->ieee->mode = IEEE_G | IEEE_B; 8680 } 8681 8682 priv->ieee->freq_band = band; 8683 priv->ieee->modulation = modulation; 8684 8685 priv->rates_mask = LIBIPW_DEFAULT_RATES_MASK; 8686 8687 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT; 8688 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT; 8689 8690 priv->rts_threshold = DEFAULT_RTS_THRESHOLD; 8691 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT; 8692 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT; 8693 8694 /* If power management is turned on, default to AC mode */ 8695 priv->power_mode = IPW_POWER_AC; 8696 priv->tx_power = IPW_TX_POWER_DEFAULT; 8697 8698 return old_mode == priv->ieee->iw_mode; 8699} 8700 8701/* 8702 * This file defines the Wireless Extension handlers. It does not 8703 * define any methods of hardware manipulation and relies on the 8704 * functions defined in ipw_main to provide the HW interaction. 8705 * 8706 * The exception to this is the use of the ipw_get_ordinal() 8707 * function used to poll the hardware vs. making unnecessary calls. 8708 * 8709 */ 8710 8711static int ipw_set_channel(struct ipw_priv *priv, u8 channel) 8712{ 8713 if (channel == 0) { 8714 IPW_DEBUG_INFO("Setting channel to ANY (0)\n"); 8715 priv->config &= ~CFG_STATIC_CHANNEL; 8716 IPW_DEBUG_ASSOC("Attempting to associate with new " 8717 "parameters.\n"); 8718 ipw_associate(priv); 8719 return 0; 8720 } 8721 8722 priv->config |= CFG_STATIC_CHANNEL; 8723 8724 if (priv->channel == channel) { 8725 IPW_DEBUG_INFO("Request to set channel to current value (%d)\n", 8726 channel); 8727 return 0; 8728 } 8729 8730 IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel); 8731 priv->channel = channel; 8732 8733#ifdef CONFIG_IPW2200_MONITOR 8734 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 8735 int i; 8736 if (priv->status & STATUS_SCANNING) { 8737 IPW_DEBUG_SCAN("Scan abort triggered due to " 8738 "channel change.\n"); 8739 ipw_abort_scan(priv); 8740 } 8741 8742 for (i = 1000; i && (priv->status & STATUS_SCANNING); i--) 8743 udelay(10); 8744 8745 if (priv->status & STATUS_SCANNING) 8746 IPW_DEBUG_SCAN("Still scanning...\n"); 8747 else 8748 IPW_DEBUG_SCAN("Took %dms to abort current scan\n", 8749 1000 - i); 8750 8751 return 0; 8752 } 8753#endif /* CONFIG_IPW2200_MONITOR */ 8754 8755 /* Network configuration changed -- force [re]association */ 8756 IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n"); 8757 if (!ipw_disassociate(priv)) 8758 ipw_associate(priv); 8759 8760 return 0; 8761} 8762 8763static int ipw_wx_set_freq(struct net_device *dev, 8764 struct iw_request_info *info, 8765 union iwreq_data *wrqu, char *extra) 8766{ 8767 struct ipw_priv *priv = libipw_priv(dev); 8768 const struct libipw_geo *geo = libipw_get_geo(priv->ieee); 8769 struct iw_freq *fwrq = &wrqu->freq; 8770 int ret = 0, i; 8771 u8 channel, flags; 8772 int band; 8773 8774 if (fwrq->m == 0) { 8775 IPW_DEBUG_WX("SET Freq/Channel -> any\n"); 8776 mutex_lock(&priv->mutex); 8777 ret = ipw_set_channel(priv, 0); 8778 mutex_unlock(&priv->mutex); 8779 return ret; 8780 } 8781 /* if setting by freq convert to channel */ 8782 if (fwrq->e == 1) { 8783 channel = libipw_freq_to_channel(priv->ieee, fwrq->m); 8784 if (channel == 0) 8785 return -EINVAL; 8786 } else 8787 channel = fwrq->m; 8788 8789 if (!(band = libipw_is_valid_channel(priv->ieee, channel))) 8790 return -EINVAL; 8791 8792 if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 8793 i = libipw_channel_to_index(priv->ieee, channel); 8794 if (i == -1) 8795 return -EINVAL; 8796 8797 flags = (band == LIBIPW_24GHZ_BAND) ? 8798 geo->bg[i].flags : geo->a[i].flags; 8799 if (flags & LIBIPW_CH_PASSIVE_ONLY) { 8800 IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n"); 8801 return -EINVAL; 8802 } 8803 } 8804 8805 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m); 8806 mutex_lock(&priv->mutex); 8807 ret = ipw_set_channel(priv, channel); 8808 mutex_unlock(&priv->mutex); 8809 return ret; 8810} 8811 8812static int ipw_wx_get_freq(struct net_device *dev, 8813 struct iw_request_info *info, 8814 union iwreq_data *wrqu, char *extra) 8815{ 8816 struct ipw_priv *priv = libipw_priv(dev); 8817 8818 wrqu->freq.e = 0; 8819 8820 /* If we are associated, trying to associate, or have a statically 8821 * configured CHANNEL then return that; otherwise return ANY */ 8822 mutex_lock(&priv->mutex); 8823 if (priv->config & CFG_STATIC_CHANNEL || 8824 priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) { 8825 int i; 8826 8827 i = libipw_channel_to_index(priv->ieee, priv->channel); 8828 BUG_ON(i == -1); 8829 wrqu->freq.e = 1; 8830 8831 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { 8832 case LIBIPW_52GHZ_BAND: 8833 wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000; 8834 break; 8835 8836 case LIBIPW_24GHZ_BAND: 8837 wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000; 8838 break; 8839 8840 default: 8841 BUG(); 8842 } 8843 } else 8844 wrqu->freq.m = 0; 8845 8846 mutex_unlock(&priv->mutex); 8847 IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel); 8848 return 0; 8849} 8850 8851static int ipw_wx_set_mode(struct net_device *dev, 8852 struct iw_request_info *info, 8853 union iwreq_data *wrqu, char *extra) 8854{ 8855 struct ipw_priv *priv = libipw_priv(dev); 8856 int err = 0; 8857 8858 IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode); 8859 8860 switch (wrqu->mode) { 8861#ifdef CONFIG_IPW2200_MONITOR 8862 case IW_MODE_MONITOR: 8863#endif 8864 case IW_MODE_ADHOC: 8865 case IW_MODE_INFRA: 8866 break; 8867 case IW_MODE_AUTO: 8868 wrqu->mode = IW_MODE_INFRA; 8869 break; 8870 default: 8871 return -EINVAL; 8872 } 8873 if (wrqu->mode == priv->ieee->iw_mode) 8874 return 0; 8875 8876 mutex_lock(&priv->mutex); 8877 8878 ipw_sw_reset(priv, 0); 8879 8880#ifdef CONFIG_IPW2200_MONITOR 8881 if (priv->ieee->iw_mode == IW_MODE_MONITOR) 8882 priv->net_dev->type = ARPHRD_ETHER; 8883 8884 if (wrqu->mode == IW_MODE_MONITOR) 8885#ifdef CONFIG_IPW2200_RADIOTAP 8886 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; 8887#else 8888 priv->net_dev->type = ARPHRD_IEEE80211; 8889#endif 8890#endif /* CONFIG_IPW2200_MONITOR */ 8891 8892 /* Free the existing firmware and reset the fw_loaded 8893 * flag so ipw_load() will bring in the new firmware */ 8894 free_firmware(); 8895 8896 priv->ieee->iw_mode = wrqu->mode; 8897 8898 schedule_work(&priv->adapter_restart); 8899 mutex_unlock(&priv->mutex); 8900 return err; 8901} 8902 8903static int ipw_wx_get_mode(struct net_device *dev, 8904 struct iw_request_info *info, 8905 union iwreq_data *wrqu, char *extra) 8906{ 8907 struct ipw_priv *priv = libipw_priv(dev); 8908 mutex_lock(&priv->mutex); 8909 wrqu->mode = priv->ieee->iw_mode; 8910 IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode); 8911 mutex_unlock(&priv->mutex); 8912 return 0; 8913} 8914 8915/* Values are in microsecond */ 8916static const s32 timeout_duration[] = { 8917 350000, 8918 250000, 8919 75000, 8920 37000, 8921 25000, 8922}; 8923 8924static const s32 period_duration[] = { 8925 400000, 8926 700000, 8927 1000000, 8928 1000000, 8929 1000000 8930}; 8931 8932static int ipw_wx_get_range(struct net_device *dev, 8933 struct iw_request_info *info, 8934 union iwreq_data *wrqu, char *extra) 8935{ 8936 struct ipw_priv *priv = libipw_priv(dev); 8937 struct iw_range *range = (struct iw_range *)extra; 8938 const struct libipw_geo *geo = libipw_get_geo(priv->ieee); 8939 int i = 0, j; 8940 8941 wrqu->data.length = sizeof(*range); 8942 memset(range, 0, sizeof(*range)); 8943 8944 /* 54Mbs == ~27 Mb/s real (802.11g) */ 8945 range->throughput = 27 * 1000 * 1000; 8946 8947 range->max_qual.qual = 100; 8948 /* TODO: Find real max RSSI and stick here */ 8949 range->max_qual.level = 0; 8950 range->max_qual.noise = 0; 8951 range->max_qual.updated = 7; /* Updated all three */ 8952 8953 range->avg_qual.qual = 70; 8954 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */ 8955 range->avg_qual.level = 0; /* FIXME to real average level */ 8956 range->avg_qual.noise = 0; 8957 range->avg_qual.updated = 7; /* Updated all three */ 8958 mutex_lock(&priv->mutex); 8959 range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES); 8960 8961 for (i = 0; i < range->num_bitrates; i++) 8962 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) * 8963 500000; 8964 8965 range->max_rts = DEFAULT_RTS_THRESHOLD; 8966 range->min_frag = MIN_FRAG_THRESHOLD; 8967 range->max_frag = MAX_FRAG_THRESHOLD; 8968 8969 range->encoding_size[0] = 5; 8970 range->encoding_size[1] = 13; 8971 range->num_encoding_sizes = 2; 8972 range->max_encoding_tokens = WEP_KEYS; 8973 8974 /* Set the Wireless Extension versions */ 8975 range->we_version_compiled = WIRELESS_EXT; 8976 range->we_version_source = 18; 8977 8978 i = 0; 8979 if (priv->ieee->mode & (IEEE_B | IEEE_G)) { 8980 for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) { 8981 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && 8982 (geo->bg[j].flags & LIBIPW_CH_PASSIVE_ONLY)) 8983 continue; 8984 8985 range->freq[i].i = geo->bg[j].channel; 8986 range->freq[i].m = geo->bg[j].freq * 100000; 8987 range->freq[i].e = 1; 8988 i++; 8989 } 8990 } 8991 8992 if (priv->ieee->mode & IEEE_A) { 8993 for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) { 8994 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && 8995 (geo->a[j].flags & LIBIPW_CH_PASSIVE_ONLY)) 8996 continue; 8997 8998 range->freq[i].i = geo->a[j].channel; 8999 range->freq[i].m = geo->a[j].freq * 100000; 9000 range->freq[i].e = 1; 9001 i++; 9002 } 9003 } 9004 9005 range->num_channels = i; 9006 range->num_frequency = i; 9007 9008 mutex_unlock(&priv->mutex); 9009 9010 /* Event capability (kernel + driver) */ 9011 range->event_capa[0] = (IW_EVENT_CAPA_K_0 | 9012 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) | 9013 IW_EVENT_CAPA_MASK(SIOCGIWAP) | 9014 IW_EVENT_CAPA_MASK(SIOCGIWSCAN)); 9015 range->event_capa[1] = IW_EVENT_CAPA_K_1; 9016 9017 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | 9018 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; 9019 9020 range->scan_capa = IW_SCAN_CAPA_ESSID | IW_SCAN_CAPA_TYPE; 9021 9022 IPW_DEBUG_WX("GET Range\n"); 9023 return 0; 9024} 9025 9026static int ipw_wx_set_wap(struct net_device *dev, 9027 struct iw_request_info *info, 9028 union iwreq_data *wrqu, char *extra) 9029{ 9030 struct ipw_priv *priv = libipw_priv(dev); 9031 9032 static const unsigned char any[] = { 9033 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 9034 }; 9035 static const unsigned char off[] = { 9036 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 9037 }; 9038 9039 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) 9040 return -EINVAL; 9041 mutex_lock(&priv->mutex); 9042 if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) || 9043 !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) { 9044 /* we disable mandatory BSSID association */ 9045 IPW_DEBUG_WX("Setting AP BSSID to ANY\n"); 9046 priv->config &= ~CFG_STATIC_BSSID; 9047 IPW_DEBUG_ASSOC("Attempting to associate with new " 9048 "parameters.\n"); 9049 ipw_associate(priv); 9050 mutex_unlock(&priv->mutex); 9051 return 0; 9052 } 9053 9054 priv->config |= CFG_STATIC_BSSID; 9055 if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) { 9056 IPW_DEBUG_WX("BSSID set to current BSSID.\n"); 9057 mutex_unlock(&priv->mutex); 9058 return 0; 9059 } 9060 9061 IPW_DEBUG_WX("Setting mandatory BSSID to %pM\n", 9062 wrqu->ap_addr.sa_data); 9063 9064 memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); 9065 9066 /* Network configuration changed -- force [re]association */ 9067 IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n"); 9068 if (!ipw_disassociate(priv)) 9069 ipw_associate(priv); 9070 9071 mutex_unlock(&priv->mutex); 9072 return 0; 9073} 9074 9075static int ipw_wx_get_wap(struct net_device *dev, 9076 struct iw_request_info *info, 9077 union iwreq_data *wrqu, char *extra) 9078{ 9079 struct ipw_priv *priv = libipw_priv(dev); 9080 9081 /* If we are associated, trying to associate, or have a statically 9082 * configured BSSID then return that; otherwise return ANY */ 9083 mutex_lock(&priv->mutex); 9084 if (priv->config & CFG_STATIC_BSSID || 9085 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { 9086 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 9087 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN); 9088 } else 9089 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN); 9090 9091 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", 9092 wrqu->ap_addr.sa_data); 9093 mutex_unlock(&priv->mutex); 9094 return 0; 9095} 9096 9097static int ipw_wx_set_essid(struct net_device *dev, 9098 struct iw_request_info *info, 9099 union iwreq_data *wrqu, char *extra) 9100{ 9101 struct ipw_priv *priv = libipw_priv(dev); 9102 int length; 9103 DECLARE_SSID_BUF(ssid); 9104 9105 mutex_lock(&priv->mutex); 9106 9107 if (!wrqu->essid.flags) 9108 { 9109 IPW_DEBUG_WX("Setting ESSID to ANY\n"); 9110 ipw_disassociate(priv); 9111 priv->config &= ~CFG_STATIC_ESSID; 9112 ipw_associate(priv); 9113 mutex_unlock(&priv->mutex); 9114 return 0; 9115 } 9116 9117 length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE); 9118 9119 priv->config |= CFG_STATIC_ESSID; 9120 9121 if (priv->essid_len == length && !memcmp(priv->essid, extra, length) 9122 && (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) { 9123 IPW_DEBUG_WX("ESSID set to current ESSID.\n"); 9124 mutex_unlock(&priv->mutex); 9125 return 0; 9126 } 9127 9128 IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", 9129 print_ssid(ssid, extra, length), length); 9130 9131 priv->essid_len = length; 9132 memcpy(priv->essid, extra, priv->essid_len); 9133 9134 /* Network configuration changed -- force [re]association */ 9135 IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n"); 9136 if (!ipw_disassociate(priv)) 9137 ipw_associate(priv); 9138 9139 mutex_unlock(&priv->mutex); 9140 return 0; 9141} 9142 9143static int ipw_wx_get_essid(struct net_device *dev, 9144 struct iw_request_info *info, 9145 union iwreq_data *wrqu, char *extra) 9146{ 9147 struct ipw_priv *priv = libipw_priv(dev); 9148 DECLARE_SSID_BUF(ssid); 9149 9150 /* If we are associated, trying to associate, or have a statically 9151 * configured ESSID then return that; otherwise return ANY */ 9152 mutex_lock(&priv->mutex); 9153 if (priv->config & CFG_STATIC_ESSID || 9154 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { 9155 IPW_DEBUG_WX("Getting essid: '%s'\n", 9156 print_ssid(ssid, priv->essid, priv->essid_len)); 9157 memcpy(extra, priv->essid, priv->essid_len); 9158 wrqu->essid.length = priv->essid_len; 9159 wrqu->essid.flags = 1; /* active */ 9160 } else { 9161 IPW_DEBUG_WX("Getting essid: ANY\n"); 9162 wrqu->essid.length = 0; 9163 wrqu->essid.flags = 0; /* active */ 9164 } 9165 mutex_unlock(&priv->mutex); 9166 return 0; 9167} 9168 9169static int ipw_wx_set_nick(struct net_device *dev, 9170 struct iw_request_info *info, 9171 union iwreq_data *wrqu, char *extra) 9172{ 9173 struct ipw_priv *priv = libipw_priv(dev); 9174 9175 IPW_DEBUG_WX("Setting nick to '%s'\n", extra); 9176 if (wrqu->data.length > IW_ESSID_MAX_SIZE) 9177 return -E2BIG; 9178 mutex_lock(&priv->mutex); 9179 wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick)); 9180 memset(priv->nick, 0, sizeof(priv->nick)); 9181 memcpy(priv->nick, extra, wrqu->data.length); 9182 IPW_DEBUG_TRACE("<<\n"); 9183 mutex_unlock(&priv->mutex); 9184 return 0; 9185 9186} 9187 9188static int ipw_wx_get_nick(struct net_device *dev, 9189 struct iw_request_info *info, 9190 union iwreq_data *wrqu, char *extra) 9191{ 9192 struct ipw_priv *priv = libipw_priv(dev); 9193 IPW_DEBUG_WX("Getting nick\n"); 9194 mutex_lock(&priv->mutex); 9195 wrqu->data.length = strlen(priv->nick); 9196 memcpy(extra, priv->nick, wrqu->data.length); 9197 wrqu->data.flags = 1; /* active */ 9198 mutex_unlock(&priv->mutex); 9199 return 0; 9200} 9201 9202static int ipw_wx_set_sens(struct net_device *dev, 9203 struct iw_request_info *info, 9204 union iwreq_data *wrqu, char *extra) 9205{ 9206 struct ipw_priv *priv = libipw_priv(dev); 9207 int err = 0; 9208 9209 IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value); 9210 IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value); 9211 mutex_lock(&priv->mutex); 9212 9213 if (wrqu->sens.fixed == 0) 9214 { 9215 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT; 9216 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT; 9217 goto out; 9218 } 9219 if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) || 9220 (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) { 9221 err = -EINVAL; 9222 goto out; 9223 } 9224 9225 priv->roaming_threshold = wrqu->sens.value; 9226 priv->disassociate_threshold = 3*wrqu->sens.value; 9227 out: 9228 mutex_unlock(&priv->mutex); 9229 return err; 9230} 9231 9232static int ipw_wx_get_sens(struct net_device *dev, 9233 struct iw_request_info *info, 9234 union iwreq_data *wrqu, char *extra) 9235{ 9236 struct ipw_priv *priv = libipw_priv(dev); 9237 mutex_lock(&priv->mutex); 9238 wrqu->sens.fixed = 1; 9239 wrqu->sens.value = priv->roaming_threshold; 9240 mutex_unlock(&priv->mutex); 9241 9242 IPW_DEBUG_WX("GET roaming threshold -> %s %d\n", 9243 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value); 9244 9245 return 0; 9246} 9247 9248static int ipw_wx_set_rate(struct net_device *dev, 9249 struct iw_request_info *info, 9250 union iwreq_data *wrqu, char *extra) 9251{ 9252 /* TODO: We should use semaphores or locks for access to priv */ 9253 struct ipw_priv *priv = libipw_priv(dev); 9254 u32 target_rate = wrqu->bitrate.value; 9255 u32 fixed, mask; 9256 9257 /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */ 9258 /* value = X, fixed = 1 means only rate X */ 9259 /* value = X, fixed = 0 means all rates lower equal X */ 9260 9261 if (target_rate == -1) { 9262 fixed = 0; 9263 mask = LIBIPW_DEFAULT_RATES_MASK; 9264 /* Now we should reassociate */ 9265 goto apply; 9266 } 9267 9268 mask = 0; 9269 fixed = wrqu->bitrate.fixed; 9270 9271 if (target_rate == 1000000 || !fixed) 9272 mask |= LIBIPW_CCK_RATE_1MB_MASK; 9273 if (target_rate == 1000000) 9274 goto apply; 9275 9276 if (target_rate == 2000000 || !fixed) 9277 mask |= LIBIPW_CCK_RATE_2MB_MASK; 9278 if (target_rate == 2000000) 9279 goto apply; 9280 9281 if (target_rate == 5500000 || !fixed) 9282 mask |= LIBIPW_CCK_RATE_5MB_MASK; 9283 if (target_rate == 5500000) 9284 goto apply; 9285 9286 if (target_rate == 6000000 || !fixed) 9287 mask |= LIBIPW_OFDM_RATE_6MB_MASK; 9288 if (target_rate == 6000000) 9289 goto apply; 9290 9291 if (target_rate == 9000000 || !fixed) 9292 mask |= LIBIPW_OFDM_RATE_9MB_MASK; 9293 if (target_rate == 9000000) 9294 goto apply; 9295 9296 if (target_rate == 11000000 || !fixed) 9297 mask |= LIBIPW_CCK_RATE_11MB_MASK; 9298 if (target_rate == 11000000) 9299 goto apply; 9300 9301 if (target_rate == 12000000 || !fixed) 9302 mask |= LIBIPW_OFDM_RATE_12MB_MASK; 9303 if (target_rate == 12000000) 9304 goto apply; 9305 9306 if (target_rate == 18000000 || !fixed) 9307 mask |= LIBIPW_OFDM_RATE_18MB_MASK; 9308 if (target_rate == 18000000) 9309 goto apply; 9310 9311 if (target_rate == 24000000 || !fixed) 9312 mask |= LIBIPW_OFDM_RATE_24MB_MASK; 9313 if (target_rate == 24000000) 9314 goto apply; 9315 9316 if (target_rate == 36000000 || !fixed) 9317 mask |= LIBIPW_OFDM_RATE_36MB_MASK; 9318 if (target_rate == 36000000) 9319 goto apply; 9320 9321 if (target_rate == 48000000 || !fixed) 9322 mask |= LIBIPW_OFDM_RATE_48MB_MASK; 9323 if (target_rate == 48000000) 9324 goto apply; 9325 9326 if (target_rate == 54000000 || !fixed) 9327 mask |= LIBIPW_OFDM_RATE_54MB_MASK; 9328 if (target_rate == 54000000) 9329 goto apply; 9330 9331 IPW_DEBUG_WX("invalid rate specified, returning error\n"); 9332 return -EINVAL; 9333 9334 apply: 9335 IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n", 9336 mask, fixed ? "fixed" : "sub-rates"); 9337 mutex_lock(&priv->mutex); 9338 if (mask == LIBIPW_DEFAULT_RATES_MASK) { 9339 priv->config &= ~CFG_FIXED_RATE; 9340 ipw_set_fixed_rate(priv, priv->ieee->mode); 9341 } else 9342 priv->config |= CFG_FIXED_RATE; 9343 9344 if (priv->rates_mask == mask) { 9345 IPW_DEBUG_WX("Mask set to current mask.\n"); 9346 mutex_unlock(&priv->mutex); 9347 return 0; 9348 } 9349 9350 priv->rates_mask = mask; 9351 9352 /* Network configuration changed -- force [re]association */ 9353 IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n"); 9354 if (!ipw_disassociate(priv)) 9355 ipw_associate(priv); 9356 9357 mutex_unlock(&priv->mutex); 9358 return 0; 9359} 9360 9361static int ipw_wx_get_rate(struct net_device *dev, 9362 struct iw_request_info *info, 9363 union iwreq_data *wrqu, char *extra) 9364{ 9365 struct ipw_priv *priv = libipw_priv(dev); 9366 mutex_lock(&priv->mutex); 9367 wrqu->bitrate.value = priv->last_rate; 9368 wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0; 9369 mutex_unlock(&priv->mutex); 9370 IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value); 9371 return 0; 9372} 9373 9374static int ipw_wx_set_rts(struct net_device *dev, 9375 struct iw_request_info *info, 9376 union iwreq_data *wrqu, char *extra) 9377{ 9378 struct ipw_priv *priv = libipw_priv(dev); 9379 mutex_lock(&priv->mutex); 9380 if (wrqu->rts.disabled || !wrqu->rts.fixed) 9381 priv->rts_threshold = DEFAULT_RTS_THRESHOLD; 9382 else { 9383 if (wrqu->rts.value < MIN_RTS_THRESHOLD || 9384 wrqu->rts.value > MAX_RTS_THRESHOLD) { 9385 mutex_unlock(&priv->mutex); 9386 return -EINVAL; 9387 } 9388 priv->rts_threshold = wrqu->rts.value; 9389 } 9390 9391 ipw_send_rts_threshold(priv, priv->rts_threshold); 9392 mutex_unlock(&priv->mutex); 9393 IPW_DEBUG_WX("SET RTS Threshold -> %d\n", priv->rts_threshold); 9394 return 0; 9395} 9396 9397static int ipw_wx_get_rts(struct net_device *dev, 9398 struct iw_request_info *info, 9399 union iwreq_data *wrqu, char *extra) 9400{ 9401 struct ipw_priv *priv = libipw_priv(dev); 9402 mutex_lock(&priv->mutex); 9403 wrqu->rts.value = priv->rts_threshold; 9404 wrqu->rts.fixed = 0; /* no auto select */ 9405 wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD); 9406 mutex_unlock(&priv->mutex); 9407 IPW_DEBUG_WX("GET RTS Threshold -> %d\n", wrqu->rts.value); 9408 return 0; 9409} 9410 9411static int ipw_wx_set_txpow(struct net_device *dev, 9412 struct iw_request_info *info, 9413 union iwreq_data *wrqu, char *extra) 9414{ 9415 struct ipw_priv *priv = libipw_priv(dev); 9416 int err = 0; 9417 9418 mutex_lock(&priv->mutex); 9419 if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) { 9420 err = -EINPROGRESS; 9421 goto out; 9422 } 9423 9424 if (!wrqu->power.fixed) 9425 wrqu->power.value = IPW_TX_POWER_DEFAULT; 9426 9427 if (wrqu->power.flags != IW_TXPOW_DBM) { 9428 err = -EINVAL; 9429 goto out; 9430 } 9431 9432 if ((wrqu->power.value > IPW_TX_POWER_MAX) || 9433 (wrqu->power.value < IPW_TX_POWER_MIN)) { 9434 err = -EINVAL; 9435 goto out; 9436 } 9437 9438 priv->tx_power = wrqu->power.value; 9439 err = ipw_set_tx_power(priv); 9440 out: 9441 mutex_unlock(&priv->mutex); 9442 return err; 9443} 9444 9445static int ipw_wx_get_txpow(struct net_device *dev, 9446 struct iw_request_info *info, 9447 union iwreq_data *wrqu, char *extra) 9448{ 9449 struct ipw_priv *priv = libipw_priv(dev); 9450 mutex_lock(&priv->mutex); 9451 wrqu->power.value = priv->tx_power; 9452 wrqu->power.fixed = 1; 9453 wrqu->power.flags = IW_TXPOW_DBM; 9454 wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0; 9455 mutex_unlock(&priv->mutex); 9456 9457 IPW_DEBUG_WX("GET TX Power -> %s %d\n", 9458 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value); 9459 9460 return 0; 9461} 9462 9463static int ipw_wx_set_frag(struct net_device *dev, 9464 struct iw_request_info *info, 9465 union iwreq_data *wrqu, char *extra) 9466{ 9467 struct ipw_priv *priv = libipw_priv(dev); 9468 mutex_lock(&priv->mutex); 9469 if (wrqu->frag.disabled || !wrqu->frag.fixed) 9470 priv->ieee->fts = DEFAULT_FTS; 9471 else { 9472 if (wrqu->frag.value < MIN_FRAG_THRESHOLD || 9473 wrqu->frag.value > MAX_FRAG_THRESHOLD) { 9474 mutex_unlock(&priv->mutex); 9475 return -EINVAL; 9476 } 9477 9478 priv->ieee->fts = wrqu->frag.value & ~0x1; 9479 } 9480 9481 ipw_send_frag_threshold(priv, wrqu->frag.value); 9482 mutex_unlock(&priv->mutex); 9483 IPW_DEBUG_WX("SET Frag Threshold -> %d\n", wrqu->frag.value); 9484 return 0; 9485} 9486 9487static int ipw_wx_get_frag(struct net_device *dev, 9488 struct iw_request_info *info, 9489 union iwreq_data *wrqu, char *extra) 9490{ 9491 struct ipw_priv *priv = libipw_priv(dev); 9492 mutex_lock(&priv->mutex); 9493 wrqu->frag.value = priv->ieee->fts; 9494 wrqu->frag.fixed = 0; /* no auto select */ 9495 wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS); 9496 mutex_unlock(&priv->mutex); 9497 IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value); 9498 9499 return 0; 9500} 9501 9502static int ipw_wx_set_retry(struct net_device *dev, 9503 struct iw_request_info *info, 9504 union iwreq_data *wrqu, char *extra) 9505{ 9506 struct ipw_priv *priv = libipw_priv(dev); 9507 9508 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled) 9509 return -EINVAL; 9510 9511 if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) 9512 return 0; 9513 9514 if (wrqu->retry.value < 0 || wrqu->retry.value >= 255) 9515 return -EINVAL; 9516 9517 mutex_lock(&priv->mutex); 9518 if (wrqu->retry.flags & IW_RETRY_SHORT) 9519 priv->short_retry_limit = (u8) wrqu->retry.value; 9520 else if (wrqu->retry.flags & IW_RETRY_LONG) 9521 priv->long_retry_limit = (u8) wrqu->retry.value; 9522 else { 9523 priv->short_retry_limit = (u8) wrqu->retry.value; 9524 priv->long_retry_limit = (u8) wrqu->retry.value; 9525 } 9526 9527 ipw_send_retry_limit(priv, priv->short_retry_limit, 9528 priv->long_retry_limit); 9529 mutex_unlock(&priv->mutex); 9530 IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n", 9531 priv->short_retry_limit, priv->long_retry_limit); 9532 return 0; 9533} 9534 9535static int ipw_wx_get_retry(struct net_device *dev, 9536 struct iw_request_info *info, 9537 union iwreq_data *wrqu, char *extra) 9538{ 9539 struct ipw_priv *priv = libipw_priv(dev); 9540 9541 mutex_lock(&priv->mutex); 9542 wrqu->retry.disabled = 0; 9543 9544 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { 9545 mutex_unlock(&priv->mutex); 9546 return -EINVAL; 9547 } 9548 9549 if (wrqu->retry.flags & IW_RETRY_LONG) { 9550 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 9551 wrqu->retry.value = priv->long_retry_limit; 9552 } else if (wrqu->retry.flags & IW_RETRY_SHORT) { 9553 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; 9554 wrqu->retry.value = priv->short_retry_limit; 9555 } else { 9556 wrqu->retry.flags = IW_RETRY_LIMIT; 9557 wrqu->retry.value = priv->short_retry_limit; 9558 } 9559 mutex_unlock(&priv->mutex); 9560 9561 IPW_DEBUG_WX("GET retry -> %d\n", wrqu->retry.value); 9562 9563 return 0; 9564} 9565 9566static int ipw_wx_set_scan(struct net_device *dev, 9567 struct iw_request_info *info, 9568 union iwreq_data *wrqu, char *extra) 9569{ 9570 struct ipw_priv *priv = libipw_priv(dev); 9571 struct iw_scan_req *req = (struct iw_scan_req *)extra; 9572 struct delayed_work *work = NULL; 9573 9574 mutex_lock(&priv->mutex); 9575 9576 priv->user_requested_scan = 1; 9577 9578 if (wrqu->data.length == sizeof(struct iw_scan_req)) { 9579 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) { 9580 int len = min((int)req->essid_len, 9581 (int)sizeof(priv->direct_scan_ssid)); 9582 memcpy(priv->direct_scan_ssid, req->essid, len); 9583 priv->direct_scan_ssid_len = len; 9584 work = &priv->request_direct_scan; 9585 } else if (req->scan_type == IW_SCAN_TYPE_PASSIVE) { 9586 work = &priv->request_passive_scan; 9587 } 9588 } else { 9589 /* Normal active broadcast scan */ 9590 work = &priv->request_scan; 9591 } 9592 9593 mutex_unlock(&priv->mutex); 9594 9595 IPW_DEBUG_WX("Start scan\n"); 9596 9597 schedule_delayed_work(work, 0); 9598 9599 return 0; 9600} 9601 9602static int ipw_wx_get_scan(struct net_device *dev, 9603 struct iw_request_info *info, 9604 union iwreq_data *wrqu, char *extra) 9605{ 9606 struct ipw_priv *priv = libipw_priv(dev); 9607 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra); 9608} 9609 9610static int ipw_wx_set_encode(struct net_device *dev, 9611 struct iw_request_info *info, 9612 union iwreq_data *wrqu, char *key) 9613{ 9614 struct ipw_priv *priv = libipw_priv(dev); 9615 int ret; 9616 u32 cap = priv->capability; 9617 9618 mutex_lock(&priv->mutex); 9619 ret = libipw_wx_set_encode(priv->ieee, info, wrqu, key); 9620 9621 /* In IBSS mode, we need to notify the firmware to update 9622 * the beacon info after we changed the capability. */ 9623 if (cap != priv->capability && 9624 priv->ieee->iw_mode == IW_MODE_ADHOC && 9625 priv->status & STATUS_ASSOCIATED) 9626 ipw_disassociate(priv); 9627 9628 mutex_unlock(&priv->mutex); 9629 return ret; 9630} 9631 9632static int ipw_wx_get_encode(struct net_device *dev, 9633 struct iw_request_info *info, 9634 union iwreq_data *wrqu, char *key) 9635{ 9636 struct ipw_priv *priv = libipw_priv(dev); 9637 return libipw_wx_get_encode(priv->ieee, info, wrqu, key); 9638} 9639 9640static int ipw_wx_set_power(struct net_device *dev, 9641 struct iw_request_info *info, 9642 union iwreq_data *wrqu, char *extra) 9643{ 9644 struct ipw_priv *priv = libipw_priv(dev); 9645 int err; 9646 mutex_lock(&priv->mutex); 9647 if (wrqu->power.disabled) { 9648 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); 9649 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM); 9650 if (err) { 9651 IPW_DEBUG_WX("failed setting power mode.\n"); 9652 mutex_unlock(&priv->mutex); 9653 return err; 9654 } 9655 IPW_DEBUG_WX("SET Power Management Mode -> off\n"); 9656 mutex_unlock(&priv->mutex); 9657 return 0; 9658 } 9659 9660 switch (wrqu->power.flags & IW_POWER_MODE) { 9661 case IW_POWER_ON: /* If not specified */ 9662 case IW_POWER_MODE: /* If set all mask */ 9663 case IW_POWER_ALL_R: /* If explicitly state all */ 9664 break; 9665 default: /* Otherwise we don't support it */ 9666 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n", 9667 wrqu->power.flags); 9668 mutex_unlock(&priv->mutex); 9669 return -EOPNOTSUPP; 9670 } 9671 9672 /* If the user hasn't specified a power management mode yet, default 9673 * to BATTERY */ 9674 if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC) 9675 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY; 9676 else 9677 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode; 9678 9679 err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode)); 9680 if (err) { 9681 IPW_DEBUG_WX("failed setting power mode.\n"); 9682 mutex_unlock(&priv->mutex); 9683 return err; 9684 } 9685 9686 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode); 9687 mutex_unlock(&priv->mutex); 9688 return 0; 9689} 9690 9691static int ipw_wx_get_power(struct net_device *dev, 9692 struct iw_request_info *info, 9693 union iwreq_data *wrqu, char *extra) 9694{ 9695 struct ipw_priv *priv = libipw_priv(dev); 9696 mutex_lock(&priv->mutex); 9697 if (!(priv->power_mode & IPW_POWER_ENABLED)) 9698 wrqu->power.disabled = 1; 9699 else 9700 wrqu->power.disabled = 0; 9701 9702 mutex_unlock(&priv->mutex); 9703 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode); 9704 9705 return 0; 9706} 9707 9708static int ipw_wx_set_powermode(struct net_device *dev, 9709 struct iw_request_info *info, 9710 union iwreq_data *wrqu, char *extra) 9711{ 9712 struct ipw_priv *priv = libipw_priv(dev); 9713 int mode = *(int *)extra; 9714 int err; 9715 9716 mutex_lock(&priv->mutex); 9717 if ((mode < 1) || (mode > IPW_POWER_LIMIT)) 9718 mode = IPW_POWER_AC; 9719 9720 if (IPW_POWER_LEVEL(priv->power_mode) != mode) { 9721 err = ipw_send_power_mode(priv, mode); 9722 if (err) { 9723 IPW_DEBUG_WX("failed setting power mode.\n"); 9724 mutex_unlock(&priv->mutex); 9725 return err; 9726 } 9727 priv->power_mode = IPW_POWER_ENABLED | mode; 9728 } 9729 mutex_unlock(&priv->mutex); 9730 return 0; 9731} 9732 9733#define MAX_WX_STRING 80 9734static int ipw_wx_get_powermode(struct net_device *dev, 9735 struct iw_request_info *info, 9736 union iwreq_data *wrqu, char *extra) 9737{ 9738 struct ipw_priv *priv = libipw_priv(dev); 9739 int level = IPW_POWER_LEVEL(priv->power_mode); 9740 char *p = extra; 9741 9742 p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level); 9743 9744 switch (level) { 9745 case IPW_POWER_AC: 9746 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)"); 9747 break; 9748 case IPW_POWER_BATTERY: 9749 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)"); 9750 break; 9751 default: 9752 p += snprintf(p, MAX_WX_STRING - (p - extra), 9753 "(Timeout %dms, Period %dms)", 9754 timeout_duration[level - 1] / 1000, 9755 period_duration[level - 1] / 1000); 9756 } 9757 9758 if (!(priv->power_mode & IPW_POWER_ENABLED)) 9759 p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF"); 9760 9761 wrqu->data.length = p - extra + 1; 9762 9763 return 0; 9764} 9765 9766static int ipw_wx_set_wireless_mode(struct net_device *dev, 9767 struct iw_request_info *info, 9768 union iwreq_data *wrqu, char *extra) 9769{ 9770 struct ipw_priv *priv = libipw_priv(dev); 9771 int mode = *(int *)extra; 9772 u8 band = 0, modulation = 0; 9773 9774 if (mode == 0 || mode & ~IEEE_MODE_MASK) { 9775 IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode); 9776 return -EINVAL; 9777 } 9778 mutex_lock(&priv->mutex); 9779 if (priv->adapter == IPW_2915ABG) { 9780 priv->ieee->abg_true = 1; 9781 if (mode & IEEE_A) { 9782 band |= LIBIPW_52GHZ_BAND; 9783 modulation |= LIBIPW_OFDM_MODULATION; 9784 } else 9785 priv->ieee->abg_true = 0; 9786 } else { 9787 if (mode & IEEE_A) { 9788 IPW_WARNING("Attempt to set 2200BG into " 9789 "802.11a mode\n"); 9790 mutex_unlock(&priv->mutex); 9791 return -EINVAL; 9792 } 9793 9794 priv->ieee->abg_true = 0; 9795 } 9796 9797 if (mode & IEEE_B) { 9798 band |= LIBIPW_24GHZ_BAND; 9799 modulation |= LIBIPW_CCK_MODULATION; 9800 } else 9801 priv->ieee->abg_true = 0; 9802 9803 if (mode & IEEE_G) { 9804 band |= LIBIPW_24GHZ_BAND; 9805 modulation |= LIBIPW_OFDM_MODULATION; 9806 } else 9807 priv->ieee->abg_true = 0; 9808 9809 priv->ieee->mode = mode; 9810 priv->ieee->freq_band = band; 9811 priv->ieee->modulation = modulation; 9812 init_supported_rates(priv, &priv->rates); 9813 9814 /* Network configuration changed -- force [re]association */ 9815 IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n"); 9816 if (!ipw_disassociate(priv)) { 9817 ipw_send_supported_rates(priv, &priv->rates); 9818 ipw_associate(priv); 9819 } 9820 9821 /* Update the band LEDs */ 9822 ipw_led_band_on(priv); 9823 9824 IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n", 9825 mode & IEEE_A ? 'a' : '.', 9826 mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.'); 9827 mutex_unlock(&priv->mutex); 9828 return 0; 9829} 9830 9831static int ipw_wx_get_wireless_mode(struct net_device *dev, 9832 struct iw_request_info *info, 9833 union iwreq_data *wrqu, char *extra) 9834{ 9835 struct ipw_priv *priv = libipw_priv(dev); 9836 mutex_lock(&priv->mutex); 9837 switch (priv->ieee->mode) { 9838 case IEEE_A: 9839 strncpy(extra, "802.11a (1)", MAX_WX_STRING); 9840 break; 9841 case IEEE_B: 9842 strncpy(extra, "802.11b (2)", MAX_WX_STRING); 9843 break; 9844 case IEEE_A | IEEE_B: 9845 strncpy(extra, "802.11ab (3)", MAX_WX_STRING); 9846 break; 9847 case IEEE_G: 9848 strncpy(extra, "802.11g (4)", MAX_WX_STRING); 9849 break; 9850 case IEEE_A | IEEE_G: 9851 strncpy(extra, "802.11ag (5)", MAX_WX_STRING); 9852 break; 9853 case IEEE_B | IEEE_G: 9854 strncpy(extra, "802.11bg (6)", MAX_WX_STRING); 9855 break; 9856 case IEEE_A | IEEE_B | IEEE_G: 9857 strncpy(extra, "802.11abg (7)", MAX_WX_STRING); 9858 break; 9859 default: 9860 strncpy(extra, "unknown", MAX_WX_STRING); 9861 break; 9862 } 9863 9864 IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra); 9865 9866 wrqu->data.length = strlen(extra) + 1; 9867 mutex_unlock(&priv->mutex); 9868 9869 return 0; 9870} 9871 9872static int ipw_wx_set_preamble(struct net_device *dev, 9873 struct iw_request_info *info, 9874 union iwreq_data *wrqu, char *extra) 9875{ 9876 struct ipw_priv *priv = libipw_priv(dev); 9877 int mode = *(int *)extra; 9878 mutex_lock(&priv->mutex); 9879 /* Switching from SHORT -> LONG requires a disassociation */ 9880 if (mode == 1) { 9881 if (!(priv->config & CFG_PREAMBLE_LONG)) { 9882 priv->config |= CFG_PREAMBLE_LONG; 9883 9884 /* Network configuration changed -- force [re]association */ 9885 IPW_DEBUG_ASSOC 9886 ("[re]association triggered due to preamble change.\n"); 9887 if (!ipw_disassociate(priv)) 9888 ipw_associate(priv); 9889 } 9890 goto done; 9891 } 9892 9893 if (mode == 0) { 9894 priv->config &= ~CFG_PREAMBLE_LONG; 9895 goto done; 9896 } 9897 mutex_unlock(&priv->mutex); 9898 return -EINVAL; 9899 9900 done: 9901 mutex_unlock(&priv->mutex); 9902 return 0; 9903} 9904 9905static int ipw_wx_get_preamble(struct net_device *dev, 9906 struct iw_request_info *info, 9907 union iwreq_data *wrqu, char *extra) 9908{ 9909 struct ipw_priv *priv = libipw_priv(dev); 9910 mutex_lock(&priv->mutex); 9911 if (priv->config & CFG_PREAMBLE_LONG) 9912 snprintf(wrqu->name, IFNAMSIZ, "long (1)"); 9913 else 9914 snprintf(wrqu->name, IFNAMSIZ, "auto (0)"); 9915 mutex_unlock(&priv->mutex); 9916 return 0; 9917} 9918 9919#ifdef CONFIG_IPW2200_MONITOR 9920static int ipw_wx_set_monitor(struct net_device *dev, 9921 struct iw_request_info *info, 9922 union iwreq_data *wrqu, char *extra) 9923{ 9924 struct ipw_priv *priv = libipw_priv(dev); 9925 int *parms = (int *)extra; 9926 int enable = (parms[0] > 0); 9927 mutex_lock(&priv->mutex); 9928 IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]); 9929 if (enable) { 9930 if (priv->ieee->iw_mode != IW_MODE_MONITOR) { 9931#ifdef CONFIG_IPW2200_RADIOTAP 9932 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; 9933#else 9934 priv->net_dev->type = ARPHRD_IEEE80211; 9935#endif 9936 schedule_work(&priv->adapter_restart); 9937 } 9938 9939 ipw_set_channel(priv, parms[1]); 9940 } else { 9941 if (priv->ieee->iw_mode != IW_MODE_MONITOR) { 9942 mutex_unlock(&priv->mutex); 9943 return 0; 9944 } 9945 priv->net_dev->type = ARPHRD_ETHER; 9946 schedule_work(&priv->adapter_restart); 9947 } 9948 mutex_unlock(&priv->mutex); 9949 return 0; 9950} 9951 9952#endif /* CONFIG_IPW2200_MONITOR */ 9953 9954static int ipw_wx_reset(struct net_device *dev, 9955 struct iw_request_info *info, 9956 union iwreq_data *wrqu, char *extra) 9957{ 9958 struct ipw_priv *priv = libipw_priv(dev); 9959 IPW_DEBUG_WX("RESET\n"); 9960 schedule_work(&priv->adapter_restart); 9961 return 0; 9962} 9963 9964static int ipw_wx_sw_reset(struct net_device *dev, 9965 struct iw_request_info *info, 9966 union iwreq_data *wrqu, char *extra) 9967{ 9968 struct ipw_priv *priv = libipw_priv(dev); 9969 union iwreq_data wrqu_sec = { 9970 .encoding = { 9971 .flags = IW_ENCODE_DISABLED, 9972 }, 9973 }; 9974 int ret; 9975 9976 IPW_DEBUG_WX("SW_RESET\n"); 9977 9978 mutex_lock(&priv->mutex); 9979 9980 ret = ipw_sw_reset(priv, 2); 9981 if (!ret) { 9982 free_firmware(); 9983 ipw_adapter_restart(priv); 9984 } 9985 9986 /* The SW reset bit might have been toggled on by the 'disable' 9987 * module parameter, so take appropriate action */ 9988 ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW); 9989 9990 mutex_unlock(&priv->mutex); 9991 libipw_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL); 9992 mutex_lock(&priv->mutex); 9993 9994 if (!(priv->status & STATUS_RF_KILL_MASK)) { 9995 /* Configuration likely changed -- force [re]association */ 9996 IPW_DEBUG_ASSOC("[re]association triggered due to sw " 9997 "reset.\n"); 9998 if (!ipw_disassociate(priv)) 9999 ipw_associate(priv); 10000 } 10001 10002 mutex_unlock(&priv->mutex); 10003 10004 return 0; 10005} 10006 10007/* Rebase the WE IOCTLs to zero for the handler array */ 10008static iw_handler ipw_wx_handlers[] = { 10009 IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname), 10010 IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq), 10011 IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq), 10012 IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode), 10013 IW_HANDLER(SIOCGIWMODE, ipw_wx_get_mode), 10014 IW_HANDLER(SIOCSIWSENS, ipw_wx_set_sens), 10015 IW_HANDLER(SIOCGIWSENS, ipw_wx_get_sens), 10016 IW_HANDLER(SIOCGIWRANGE, ipw_wx_get_range), 10017 IW_HANDLER(SIOCSIWAP, ipw_wx_set_wap), 10018 IW_HANDLER(SIOCGIWAP, ipw_wx_get_wap), 10019 IW_HANDLER(SIOCSIWSCAN, ipw_wx_set_scan), 10020 IW_HANDLER(SIOCGIWSCAN, ipw_wx_get_scan), 10021 IW_HANDLER(SIOCSIWESSID, ipw_wx_set_essid), 10022 IW_HANDLER(SIOCGIWESSID, ipw_wx_get_essid), 10023 IW_HANDLER(SIOCSIWNICKN, ipw_wx_set_nick), 10024 IW_HANDLER(SIOCGIWNICKN, ipw_wx_get_nick), 10025 IW_HANDLER(SIOCSIWRATE, ipw_wx_set_rate), 10026 IW_HANDLER(SIOCGIWRATE, ipw_wx_get_rate), 10027 IW_HANDLER(SIOCSIWRTS, ipw_wx_set_rts), 10028 IW_HANDLER(SIOCGIWRTS, ipw_wx_get_rts), 10029 IW_HANDLER(SIOCSIWFRAG, ipw_wx_set_frag), 10030 IW_HANDLER(SIOCGIWFRAG, ipw_wx_get_frag), 10031 IW_HANDLER(SIOCSIWTXPOW, ipw_wx_set_txpow), 10032 IW_HANDLER(SIOCGIWTXPOW, ipw_wx_get_txpow), 10033 IW_HANDLER(SIOCSIWRETRY, ipw_wx_set_retry), 10034 IW_HANDLER(SIOCGIWRETRY, ipw_wx_get_retry), 10035 IW_HANDLER(SIOCSIWENCODE, ipw_wx_set_encode), 10036 IW_HANDLER(SIOCGIWENCODE, ipw_wx_get_encode), 10037 IW_HANDLER(SIOCSIWPOWER, ipw_wx_set_power), 10038 IW_HANDLER(SIOCGIWPOWER, ipw_wx_get_power), 10039 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 10040 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 10041 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 10042 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 10043 IW_HANDLER(SIOCSIWGENIE, ipw_wx_set_genie), 10044 IW_HANDLER(SIOCGIWGENIE, ipw_wx_get_genie), 10045 IW_HANDLER(SIOCSIWMLME, ipw_wx_set_mlme), 10046 IW_HANDLER(SIOCSIWAUTH, ipw_wx_set_auth), 10047 IW_HANDLER(SIOCGIWAUTH, ipw_wx_get_auth), 10048 IW_HANDLER(SIOCSIWENCODEEXT, ipw_wx_set_encodeext), 10049 IW_HANDLER(SIOCGIWENCODEEXT, ipw_wx_get_encodeext), 10050}; 10051 10052enum { 10053 IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV, 10054 IPW_PRIV_GET_POWER, 10055 IPW_PRIV_SET_MODE, 10056 IPW_PRIV_GET_MODE, 10057 IPW_PRIV_SET_PREAMBLE, 10058 IPW_PRIV_GET_PREAMBLE, 10059 IPW_PRIV_RESET, 10060 IPW_PRIV_SW_RESET, 10061#ifdef CONFIG_IPW2200_MONITOR 10062 IPW_PRIV_SET_MONITOR, 10063#endif 10064}; 10065 10066static struct iw_priv_args ipw_priv_args[] = { 10067 { 10068 .cmd = IPW_PRIV_SET_POWER, 10069 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 10070 .name = "set_power"}, 10071 { 10072 .cmd = IPW_PRIV_GET_POWER, 10073 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, 10074 .name = "get_power"}, 10075 { 10076 .cmd = IPW_PRIV_SET_MODE, 10077 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 10078 .name = "set_mode"}, 10079 { 10080 .cmd = IPW_PRIV_GET_MODE, 10081 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, 10082 .name = "get_mode"}, 10083 { 10084 .cmd = IPW_PRIV_SET_PREAMBLE, 10085 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 10086 .name = "set_preamble"}, 10087 { 10088 .cmd = IPW_PRIV_GET_PREAMBLE, 10089 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, 10090 .name = "get_preamble"}, 10091 { 10092 IPW_PRIV_RESET, 10093 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"}, 10094 { 10095 IPW_PRIV_SW_RESET, 10096 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"}, 10097#ifdef CONFIG_IPW2200_MONITOR 10098 { 10099 IPW_PRIV_SET_MONITOR, 10100 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"}, 10101#endif /* CONFIG_IPW2200_MONITOR */ 10102}; 10103 10104static iw_handler ipw_priv_handler[] = { 10105 ipw_wx_set_powermode, 10106 ipw_wx_get_powermode, 10107 ipw_wx_set_wireless_mode, 10108 ipw_wx_get_wireless_mode, 10109 ipw_wx_set_preamble, 10110 ipw_wx_get_preamble, 10111 ipw_wx_reset, 10112 ipw_wx_sw_reset, 10113#ifdef CONFIG_IPW2200_MONITOR 10114 ipw_wx_set_monitor, 10115#endif 10116}; 10117 10118static struct iw_handler_def ipw_wx_handler_def = { 10119 .standard = ipw_wx_handlers, 10120 .num_standard = ARRAY_SIZE(ipw_wx_handlers), 10121 .num_private = ARRAY_SIZE(ipw_priv_handler), 10122 .num_private_args = ARRAY_SIZE(ipw_priv_args), 10123 .private = ipw_priv_handler, 10124 .private_args = ipw_priv_args, 10125 .get_wireless_stats = ipw_get_wireless_stats, 10126}; 10127 10128/* 10129 * Get wireless statistics. 10130 * Called by /proc/net/wireless 10131 * Also called by SIOCGIWSTATS 10132 */ 10133static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev) 10134{ 10135 struct ipw_priv *priv = libipw_priv(dev); 10136 struct iw_statistics *wstats; 10137 10138 wstats = &priv->wstats; 10139 10140 /* if hw is disabled, then ipw_get_ordinal() can't be called. 10141 * netdev->get_wireless_stats seems to be called before fw is 10142 * initialized. STATUS_ASSOCIATED will only be set if the hw is up 10143 * and associated; if not associcated, the values are all meaningless 10144 * anyway, so set them all to NULL and INVALID */ 10145 if (!(priv->status & STATUS_ASSOCIATED)) { 10146 wstats->miss.beacon = 0; 10147 wstats->discard.retries = 0; 10148 wstats->qual.qual = 0; 10149 wstats->qual.level = 0; 10150 wstats->qual.noise = 0; 10151 wstats->qual.updated = 7; 10152 wstats->qual.updated |= IW_QUAL_NOISE_INVALID | 10153 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; 10154 return wstats; 10155 } 10156 10157 wstats->qual.qual = priv->quality; 10158 wstats->qual.level = priv->exp_avg_rssi; 10159 wstats->qual.noise = priv->exp_avg_noise; 10160 wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | 10161 IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM; 10162 10163 wstats->miss.beacon = average_value(&priv->average_missed_beacons); 10164 wstats->discard.retries = priv->last_tx_failures; 10165 wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable; 10166 10167/* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len)) 10168 goto fail_get_ordinal; 10169 wstats->discard.retries += tx_retry; */ 10170 10171 return wstats; 10172} 10173 10174/* net device stuff */ 10175 10176static void init_sys_config(struct ipw_sys_config *sys_config) 10177{ 10178 memset(sys_config, 0, sizeof(struct ipw_sys_config)); 10179 sys_config->bt_coexistence = 0; 10180 sys_config->answer_broadcast_ssid_probe = 0; 10181 sys_config->accept_all_data_frames = 0; 10182 sys_config->accept_non_directed_frames = 1; 10183 sys_config->exclude_unicast_unencrypted = 0; 10184 sys_config->disable_unicast_decryption = 1; 10185 sys_config->exclude_multicast_unencrypted = 0; 10186 sys_config->disable_multicast_decryption = 1; 10187 if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B) 10188 antenna = CFG_SYS_ANTENNA_BOTH; 10189 sys_config->antenna_diversity = antenna; 10190 sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */ 10191 sys_config->dot11g_auto_detection = 0; 10192 sys_config->enable_cts_to_self = 0; 10193 sys_config->bt_coexist_collision_thr = 0; 10194 sys_config->pass_noise_stats_to_host = 1; /* 1 -- fix for 256 */ 10195 sys_config->silence_threshold = 0x1e; 10196} 10197 10198static int ipw_net_open(struct net_device *dev) 10199{ 10200 IPW_DEBUG_INFO("dev->open\n"); 10201 netif_start_queue(dev); 10202 return 0; 10203} 10204 10205static int ipw_net_stop(struct net_device *dev) 10206{ 10207 IPW_DEBUG_INFO("dev->close\n"); 10208 netif_stop_queue(dev); 10209 return 0; 10210} 10211 10212/* 10213todo: 10214 10215modify to send one tfd per fragment instead of using chunking. otherwise 10216we need to heavily modify the libipw_skb_to_txb. 10217*/ 10218 10219static int ipw_tx_skb(struct ipw_priv *priv, struct libipw_txb *txb, 10220 int pri) 10221{ 10222 struct libipw_hdr_3addrqos *hdr = (struct libipw_hdr_3addrqos *) 10223 txb->fragments[0]->data; 10224 int i = 0; 10225 struct tfd_frame *tfd; 10226#ifdef CONFIG_IPW2200_QOS 10227 int tx_id = ipw_get_tx_queue_number(priv, pri); 10228 struct clx2_tx_queue *txq = &priv->txq[tx_id]; 10229#else 10230 struct clx2_tx_queue *txq = &priv->txq[0]; 10231#endif 10232 struct clx2_queue *q = &txq->q; 10233 u8 id, hdr_len, unicast; 10234 int fc; 10235 10236 if (!(priv->status & STATUS_ASSOCIATED)) 10237 goto drop; 10238 10239 hdr_len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); 10240 switch (priv->ieee->iw_mode) { 10241 case IW_MODE_ADHOC: 10242 unicast = !is_multicast_ether_addr(hdr->addr1); 10243 id = ipw_find_station(priv, hdr->addr1); 10244 if (id == IPW_INVALID_STATION) { 10245 id = ipw_add_station(priv, hdr->addr1); 10246 if (id == IPW_INVALID_STATION) { 10247 IPW_WARNING("Attempt to send data to " 10248 "invalid cell: %pM\n", 10249 hdr->addr1); 10250 goto drop; 10251 } 10252 } 10253 break; 10254 10255 case IW_MODE_INFRA: 10256 default: 10257 unicast = !is_multicast_ether_addr(hdr->addr3); 10258 id = 0; 10259 break; 10260 } 10261 10262 tfd = &txq->bd[q->first_empty]; 10263 txq->txb[q->first_empty] = txb; 10264 memset(tfd, 0, sizeof(*tfd)); 10265 tfd->u.data.station_number = id; 10266 10267 tfd->control_flags.message_type = TX_FRAME_TYPE; 10268 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; 10269 10270 tfd->u.data.cmd_id = DINO_CMD_TX; 10271 tfd->u.data.len = cpu_to_le16(txb->payload_size); 10272 10273 if (priv->assoc_request.ieee_mode == IPW_B_MODE) 10274 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK; 10275 else 10276 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM; 10277 10278 if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE) 10279 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE; 10280 10281 fc = le16_to_cpu(hdr->frame_ctl); 10282 hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS); 10283 10284 memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len); 10285 10286 if (likely(unicast)) 10287 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; 10288 10289 if (txb->encrypted && !priv->ieee->host_encrypt) { 10290 switch (priv->ieee->sec.level) { 10291 case SEC_LEVEL_3: 10292 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= 10293 cpu_to_le16(IEEE80211_FCTL_PROTECTED); 10294 /* XXX: ACK flag must be set for CCMP even if it 10295 * is a multicast/broadcast packet, because CCMP 10296 * group communication encrypted by GTK is 10297 * actually done by the AP. */ 10298 if (!unicast) 10299 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; 10300 10301 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; 10302 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM; 10303 tfd->u.data.key_index = 0; 10304 tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE; 10305 break; 10306 case SEC_LEVEL_2: 10307 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= 10308 cpu_to_le16(IEEE80211_FCTL_PROTECTED); 10309 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; 10310 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP; 10311 tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE; 10312 break; 10313 case SEC_LEVEL_1: 10314 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= 10315 cpu_to_le16(IEEE80211_FCTL_PROTECTED); 10316 tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx; 10317 if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <= 10318 40) 10319 tfd->u.data.key_index |= DCT_WEP_KEY_64Bit; 10320 else 10321 tfd->u.data.key_index |= DCT_WEP_KEY_128Bit; 10322 break; 10323 case SEC_LEVEL_0: 10324 break; 10325 default: 10326 printk(KERN_ERR "Unknown security level %d\n", 10327 priv->ieee->sec.level); 10328 break; 10329 } 10330 } else 10331 /* No hardware encryption */ 10332 tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP; 10333 10334#ifdef CONFIG_IPW2200_QOS 10335 if (fc & IEEE80211_STYPE_QOS_DATA) 10336 ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data)); 10337#endif /* CONFIG_IPW2200_QOS */ 10338 10339 /* payload */ 10340 tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2), 10341 txb->nr_frags)); 10342 IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n", 10343 txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks)); 10344 for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) { 10345 IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n", 10346 i, le32_to_cpu(tfd->u.data.num_chunks), 10347 txb->fragments[i]->len - hdr_len); 10348 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n", 10349 i, tfd->u.data.num_chunks, 10350 txb->fragments[i]->len - hdr_len); 10351 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len, 10352 txb->fragments[i]->len - hdr_len); 10353 10354 tfd->u.data.chunk_ptr[i] = 10355 cpu_to_le32(pci_map_single 10356 (priv->pci_dev, 10357 txb->fragments[i]->data + hdr_len, 10358 txb->fragments[i]->len - hdr_len, 10359 PCI_DMA_TODEVICE)); 10360 tfd->u.data.chunk_len[i] = 10361 cpu_to_le16(txb->fragments[i]->len - hdr_len); 10362 } 10363 10364 if (i != txb->nr_frags) { 10365 struct sk_buff *skb; 10366 u16 remaining_bytes = 0; 10367 int j; 10368 10369 for (j = i; j < txb->nr_frags; j++) 10370 remaining_bytes += txb->fragments[j]->len - hdr_len; 10371 10372 printk(KERN_INFO "Trying to reallocate for %d bytes\n", 10373 remaining_bytes); 10374 skb = alloc_skb(remaining_bytes, GFP_ATOMIC); 10375 if (skb != NULL) { 10376 tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes); 10377 for (j = i; j < txb->nr_frags; j++) { 10378 int size = txb->fragments[j]->len - hdr_len; 10379 10380 printk(KERN_INFO "Adding frag %d %d...\n", 10381 j, size); 10382 memcpy(skb_put(skb, size), 10383 txb->fragments[j]->data + hdr_len, size); 10384 } 10385 dev_kfree_skb_any(txb->fragments[i]); 10386 txb->fragments[i] = skb; 10387 tfd->u.data.chunk_ptr[i] = 10388 cpu_to_le32(pci_map_single 10389 (priv->pci_dev, skb->data, 10390 remaining_bytes, 10391 PCI_DMA_TODEVICE)); 10392 10393 le32_add_cpu(&tfd->u.data.num_chunks, 1); 10394 } 10395 } 10396 10397 /* kick DMA */ 10398 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); 10399 ipw_write32(priv, q->reg_w, q->first_empty); 10400 10401 if (ipw_tx_queue_space(q) < q->high_mark) 10402 netif_stop_queue(priv->net_dev); 10403 10404 return NETDEV_TX_OK; 10405 10406 drop: 10407 IPW_DEBUG_DROP("Silently dropping Tx packet.\n"); 10408 libipw_txb_free(txb); 10409 return NETDEV_TX_OK; 10410} 10411 10412static int ipw_net_is_queue_full(struct net_device *dev, int pri) 10413{ 10414 struct ipw_priv *priv = libipw_priv(dev); 10415#ifdef CONFIG_IPW2200_QOS 10416 int tx_id = ipw_get_tx_queue_number(priv, pri); 10417 struct clx2_tx_queue *txq = &priv->txq[tx_id]; 10418#else 10419 struct clx2_tx_queue *txq = &priv->txq[0]; 10420#endif /* CONFIG_IPW2200_QOS */ 10421 10422 if (ipw_tx_queue_space(&txq->q) < txq->q.high_mark) 10423 return 1; 10424 10425 return 0; 10426} 10427 10428#ifdef CONFIG_IPW2200_PROMISCUOUS 10429static void ipw_handle_promiscuous_tx(struct ipw_priv *priv, 10430 struct libipw_txb *txb) 10431{ 10432 struct libipw_rx_stats dummystats; 10433 struct ieee80211_hdr *hdr; 10434 u8 n; 10435 u16 filter = priv->prom_priv->filter; 10436 int hdr_only = 0; 10437 10438 if (filter & IPW_PROM_NO_TX) 10439 return; 10440 10441 memset(&dummystats, 0, sizeof(dummystats)); 10442 10443 /* Filtering of fragment chains is done against the first fragment */ 10444 hdr = (void *)txb->fragments[0]->data; 10445 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) { 10446 if (filter & IPW_PROM_NO_MGMT) 10447 return; 10448 if (filter & IPW_PROM_MGMT_HEADER_ONLY) 10449 hdr_only = 1; 10450 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) { 10451 if (filter & IPW_PROM_NO_CTL) 10452 return; 10453 if (filter & IPW_PROM_CTL_HEADER_ONLY) 10454 hdr_only = 1; 10455 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) { 10456 if (filter & IPW_PROM_NO_DATA) 10457 return; 10458 if (filter & IPW_PROM_DATA_HEADER_ONLY) 10459 hdr_only = 1; 10460 } 10461 10462 for(n=0; n<txb->nr_frags; ++n) { 10463 struct sk_buff *src = txb->fragments[n]; 10464 struct sk_buff *dst; 10465 struct ieee80211_radiotap_header *rt_hdr; 10466 int len; 10467 10468 if (hdr_only) { 10469 hdr = (void *)src->data; 10470 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control)); 10471 } else 10472 len = src->len; 10473 10474 dst = alloc_skb(len + sizeof(*rt_hdr), GFP_ATOMIC); 10475 if (!dst) 10476 continue; 10477 10478 rt_hdr = (void *)skb_put(dst, sizeof(*rt_hdr)); 10479 10480 rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION; 10481 rt_hdr->it_pad = 0; 10482 rt_hdr->it_present = 0; /* after all, it's just an idea */ 10483 rt_hdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_CHANNEL); 10484 10485 *(__le16*)skb_put(dst, sizeof(u16)) = cpu_to_le16( 10486 ieee80211chan2mhz(priv->channel)); 10487 if (priv->channel > 14) /* 802.11a */ 10488 *(__le16*)skb_put(dst, sizeof(u16)) = 10489 cpu_to_le16(IEEE80211_CHAN_OFDM | 10490 IEEE80211_CHAN_5GHZ); 10491 else if (priv->ieee->mode == IEEE_B) /* 802.11b */ 10492 *(__le16*)skb_put(dst, sizeof(u16)) = 10493 cpu_to_le16(IEEE80211_CHAN_CCK | 10494 IEEE80211_CHAN_2GHZ); 10495 else /* 802.11g */ 10496 *(__le16*)skb_put(dst, sizeof(u16)) = 10497 cpu_to_le16(IEEE80211_CHAN_OFDM | 10498 IEEE80211_CHAN_2GHZ); 10499 10500 rt_hdr->it_len = cpu_to_le16(dst->len); 10501 10502 skb_copy_from_linear_data(src, skb_put(dst, len), len); 10503 10504 if (!libipw_rx(priv->prom_priv->ieee, dst, &dummystats)) 10505 dev_kfree_skb_any(dst); 10506 } 10507} 10508#endif 10509 10510static netdev_tx_t ipw_net_hard_start_xmit(struct libipw_txb *txb, 10511 struct net_device *dev, int pri) 10512{ 10513 struct ipw_priv *priv = libipw_priv(dev); 10514 unsigned long flags; 10515 netdev_tx_t ret; 10516 10517 IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size); 10518 spin_lock_irqsave(&priv->lock, flags); 10519 10520#ifdef CONFIG_IPW2200_PROMISCUOUS 10521 if (rtap_iface && netif_running(priv->prom_net_dev)) 10522 ipw_handle_promiscuous_tx(priv, txb); 10523#endif 10524 10525 ret = ipw_tx_skb(priv, txb, pri); 10526 if (ret == NETDEV_TX_OK) 10527 __ipw_led_activity_on(priv); 10528 spin_unlock_irqrestore(&priv->lock, flags); 10529 10530 return ret; 10531} 10532 10533static void ipw_net_set_multicast_list(struct net_device *dev) 10534{ 10535 10536} 10537 10538static int ipw_net_set_mac_address(struct net_device *dev, void *p) 10539{ 10540 struct ipw_priv *priv = libipw_priv(dev); 10541 struct sockaddr *addr = p; 10542 10543 if (!is_valid_ether_addr(addr->sa_data)) 10544 return -EADDRNOTAVAIL; 10545 mutex_lock(&priv->mutex); 10546 priv->config |= CFG_CUSTOM_MAC; 10547 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); 10548 printk(KERN_INFO "%s: Setting MAC to %pM\n", 10549 priv->net_dev->name, priv->mac_addr); 10550 schedule_work(&priv->adapter_restart); 10551 mutex_unlock(&priv->mutex); 10552 return 0; 10553} 10554 10555static void ipw_ethtool_get_drvinfo(struct net_device *dev, 10556 struct ethtool_drvinfo *info) 10557{ 10558 struct ipw_priv *p = libipw_priv(dev); 10559 char vers[64]; 10560 char date[32]; 10561 u32 len; 10562 10563 strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); 10564 strlcpy(info->version, DRV_VERSION, sizeof(info->version)); 10565 10566 len = sizeof(vers); 10567 ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len); 10568 len = sizeof(date); 10569 ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len); 10570 10571 snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)", 10572 vers, date); 10573 strlcpy(info->bus_info, pci_name(p->pci_dev), 10574 sizeof(info->bus_info)); 10575 info->eedump_len = IPW_EEPROM_IMAGE_SIZE; 10576} 10577 10578static u32 ipw_ethtool_get_link(struct net_device *dev) 10579{ 10580 struct ipw_priv *priv = libipw_priv(dev); 10581 return (priv->status & STATUS_ASSOCIATED) != 0; 10582} 10583 10584static int ipw_ethtool_get_eeprom_len(struct net_device *dev) 10585{ 10586 return IPW_EEPROM_IMAGE_SIZE; 10587} 10588 10589static int ipw_ethtool_get_eeprom(struct net_device *dev, 10590 struct ethtool_eeprom *eeprom, u8 * bytes) 10591{ 10592 struct ipw_priv *p = libipw_priv(dev); 10593 10594 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) 10595 return -EINVAL; 10596 mutex_lock(&p->mutex); 10597 memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len); 10598 mutex_unlock(&p->mutex); 10599 return 0; 10600} 10601 10602static int ipw_ethtool_set_eeprom(struct net_device *dev, 10603 struct ethtool_eeprom *eeprom, u8 * bytes) 10604{ 10605 struct ipw_priv *p = libipw_priv(dev); 10606 int i; 10607 10608 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) 10609 return -EINVAL; 10610 mutex_lock(&p->mutex); 10611 memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len); 10612 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++) 10613 ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]); 10614 mutex_unlock(&p->mutex); 10615 return 0; 10616} 10617 10618static const struct ethtool_ops ipw_ethtool_ops = { 10619 .get_link = ipw_ethtool_get_link, 10620 .get_drvinfo = ipw_ethtool_get_drvinfo, 10621 .get_eeprom_len = ipw_ethtool_get_eeprom_len, 10622 .get_eeprom = ipw_ethtool_get_eeprom, 10623 .set_eeprom = ipw_ethtool_set_eeprom, 10624}; 10625 10626static irqreturn_t ipw_isr(int irq, void *data) 10627{ 10628 struct ipw_priv *priv = data; 10629 u32 inta, inta_mask; 10630 10631 if (!priv) 10632 return IRQ_NONE; 10633 10634 spin_lock(&priv->irq_lock); 10635 10636 if (!(priv->status & STATUS_INT_ENABLED)) { 10637 /* IRQ is disabled */ 10638 goto none; 10639 } 10640 10641 inta = ipw_read32(priv, IPW_INTA_RW); 10642 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); 10643 10644 if (inta == 0xFFFFFFFF) { 10645 /* Hardware disappeared */ 10646 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n"); 10647 goto none; 10648 } 10649 10650 if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) { 10651 /* Shared interrupt */ 10652 goto none; 10653 } 10654 10655 /* tell the device to stop sending interrupts */ 10656 __ipw_disable_interrupts(priv); 10657 10658 /* ack current interrupts */ 10659 inta &= (IPW_INTA_MASK_ALL & inta_mask); 10660 ipw_write32(priv, IPW_INTA_RW, inta); 10661 10662 /* Cache INTA value for our tasklet */ 10663 priv->isr_inta = inta; 10664 10665 tasklet_schedule(&priv->irq_tasklet); 10666 10667 spin_unlock(&priv->irq_lock); 10668 10669 return IRQ_HANDLED; 10670 none: 10671 spin_unlock(&priv->irq_lock); 10672 return IRQ_NONE; 10673} 10674 10675static void ipw_rf_kill(void *adapter) 10676{ 10677 struct ipw_priv *priv = adapter; 10678 unsigned long flags; 10679 10680 spin_lock_irqsave(&priv->lock, flags); 10681 10682 if (rf_kill_active(priv)) { 10683 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n"); 10684 schedule_delayed_work(&priv->rf_kill, 2 * HZ); 10685 goto exit_unlock; 10686 } 10687 10688 /* RF Kill is now disabled, so bring the device back up */ 10689 10690 if (!(priv->status & STATUS_RF_KILL_MASK)) { 10691 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting " 10692 "device\n"); 10693 10694 /* we can not do an adapter restart while inside an irq lock */ 10695 schedule_work(&priv->adapter_restart); 10696 } else 10697 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still " 10698 "enabled\n"); 10699 10700 exit_unlock: 10701 spin_unlock_irqrestore(&priv->lock, flags); 10702} 10703 10704static void ipw_bg_rf_kill(struct work_struct *work) 10705{ 10706 struct ipw_priv *priv = 10707 container_of(work, struct ipw_priv, rf_kill.work); 10708 mutex_lock(&priv->mutex); 10709 ipw_rf_kill(priv); 10710 mutex_unlock(&priv->mutex); 10711} 10712 10713static void ipw_link_up(struct ipw_priv *priv) 10714{ 10715 priv->last_seq_num = -1; 10716 priv->last_frag_num = -1; 10717 priv->last_packet_time = 0; 10718 10719 netif_carrier_on(priv->net_dev); 10720 10721 cancel_delayed_work(&priv->request_scan); 10722 cancel_delayed_work(&priv->request_direct_scan); 10723 cancel_delayed_work(&priv->request_passive_scan); 10724 cancel_delayed_work(&priv->scan_event); 10725 ipw_reset_stats(priv); 10726 /* Ensure the rate is updated immediately */ 10727 priv->last_rate = ipw_get_current_rate(priv); 10728 ipw_gather_stats(priv); 10729 ipw_led_link_up(priv); 10730 notify_wx_assoc_event(priv); 10731 10732 if (priv->config & CFG_BACKGROUND_SCAN) 10733 schedule_delayed_work(&priv->request_scan, HZ); 10734} 10735 10736static void ipw_bg_link_up(struct work_struct *work) 10737{ 10738 struct ipw_priv *priv = 10739 container_of(work, struct ipw_priv, link_up); 10740 mutex_lock(&priv->mutex); 10741 ipw_link_up(priv); 10742 mutex_unlock(&priv->mutex); 10743} 10744 10745static void ipw_link_down(struct ipw_priv *priv) 10746{ 10747 ipw_led_link_down(priv); 10748 netif_carrier_off(priv->net_dev); 10749 notify_wx_assoc_event(priv); 10750 10751 /* Cancel any queued work ... */ 10752 cancel_delayed_work(&priv->request_scan); 10753 cancel_delayed_work(&priv->request_direct_scan); 10754 cancel_delayed_work(&priv->request_passive_scan); 10755 cancel_delayed_work(&priv->adhoc_check); 10756 cancel_delayed_work(&priv->gather_stats); 10757 10758 ipw_reset_stats(priv); 10759 10760 if (!(priv->status & STATUS_EXIT_PENDING)) { 10761 /* Queue up another scan... */ 10762 schedule_delayed_work(&priv->request_scan, 0); 10763 } else 10764 cancel_delayed_work(&priv->scan_event); 10765} 10766 10767static void ipw_bg_link_down(struct work_struct *work) 10768{ 10769 struct ipw_priv *priv = 10770 container_of(work, struct ipw_priv, link_down); 10771 mutex_lock(&priv->mutex); 10772 ipw_link_down(priv); 10773 mutex_unlock(&priv->mutex); 10774} 10775 10776static int __devinit ipw_setup_deferred_work(struct ipw_priv *priv) 10777{ 10778 int ret = 0; 10779 10780 init_waitqueue_head(&priv->wait_command_queue); 10781 init_waitqueue_head(&priv->wait_state); 10782 10783 INIT_DELAYED_WORK(&priv->adhoc_check, ipw_bg_adhoc_check); 10784 INIT_WORK(&priv->associate, ipw_bg_associate); 10785 INIT_WORK(&priv->disassociate, ipw_bg_disassociate); 10786 INIT_WORK(&priv->system_config, ipw_system_config); 10787 INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish); 10788 INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart); 10789 INIT_DELAYED_WORK(&priv->rf_kill, ipw_bg_rf_kill); 10790 INIT_WORK(&priv->up, ipw_bg_up); 10791 INIT_WORK(&priv->down, ipw_bg_down); 10792 INIT_DELAYED_WORK(&priv->request_scan, ipw_request_scan); 10793 INIT_DELAYED_WORK(&priv->request_direct_scan, ipw_request_direct_scan); 10794 INIT_DELAYED_WORK(&priv->request_passive_scan, ipw_request_passive_scan); 10795 INIT_DELAYED_WORK(&priv->scan_event, ipw_scan_event); 10796 INIT_DELAYED_WORK(&priv->gather_stats, ipw_bg_gather_stats); 10797 INIT_WORK(&priv->abort_scan, ipw_bg_abort_scan); 10798 INIT_WORK(&priv->roam, ipw_bg_roam); 10799 INIT_DELAYED_WORK(&priv->scan_check, ipw_bg_scan_check); 10800 INIT_WORK(&priv->link_up, ipw_bg_link_up); 10801 INIT_WORK(&priv->link_down, ipw_bg_link_down); 10802 INIT_DELAYED_WORK(&priv->led_link_on, ipw_bg_led_link_on); 10803 INIT_DELAYED_WORK(&priv->led_link_off, ipw_bg_led_link_off); 10804 INIT_DELAYED_WORK(&priv->led_act_off, ipw_bg_led_activity_off); 10805 INIT_WORK(&priv->merge_networks, ipw_merge_adhoc_network); 10806 10807#ifdef CONFIG_IPW2200_QOS 10808 INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate); 10809#endif /* CONFIG_IPW2200_QOS */ 10810 10811 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) 10812 ipw_irq_tasklet, (unsigned long)priv); 10813 10814 return ret; 10815} 10816 10817static void shim__set_security(struct net_device *dev, 10818 struct libipw_security *sec) 10819{ 10820 struct ipw_priv *priv = libipw_priv(dev); 10821 int i; 10822 for (i = 0; i < 4; i++) { 10823 if (sec->flags & (1 << i)) { 10824 priv->ieee->sec.encode_alg[i] = sec->encode_alg[i]; 10825 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i]; 10826 if (sec->key_sizes[i] == 0) 10827 priv->ieee->sec.flags &= ~(1 << i); 10828 else { 10829 memcpy(priv->ieee->sec.keys[i], sec->keys[i], 10830 sec->key_sizes[i]); 10831 priv->ieee->sec.flags |= (1 << i); 10832 } 10833 priv->status |= STATUS_SECURITY_UPDATED; 10834 } else if (sec->level != SEC_LEVEL_1) 10835 priv->ieee->sec.flags &= ~(1 << i); 10836 } 10837 10838 if (sec->flags & SEC_ACTIVE_KEY) { 10839 if (sec->active_key <= 3) { 10840 priv->ieee->sec.active_key = sec->active_key; 10841 priv->ieee->sec.flags |= SEC_ACTIVE_KEY; 10842 } else 10843 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; 10844 priv->status |= STATUS_SECURITY_UPDATED; 10845 } else 10846 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; 10847 10848 if ((sec->flags & SEC_AUTH_MODE) && 10849 (priv->ieee->sec.auth_mode != sec->auth_mode)) { 10850 priv->ieee->sec.auth_mode = sec->auth_mode; 10851 priv->ieee->sec.flags |= SEC_AUTH_MODE; 10852 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY) 10853 priv->capability |= CAP_SHARED_KEY; 10854 else 10855 priv->capability &= ~CAP_SHARED_KEY; 10856 priv->status |= STATUS_SECURITY_UPDATED; 10857 } 10858 10859 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) { 10860 priv->ieee->sec.flags |= SEC_ENABLED; 10861 priv->ieee->sec.enabled = sec->enabled; 10862 priv->status |= STATUS_SECURITY_UPDATED; 10863 if (sec->enabled) 10864 priv->capability |= CAP_PRIVACY_ON; 10865 else 10866 priv->capability &= ~CAP_PRIVACY_ON; 10867 } 10868 10869 if (sec->flags & SEC_ENCRYPT) 10870 priv->ieee->sec.encrypt = sec->encrypt; 10871 10872 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) { 10873 priv->ieee->sec.level = sec->level; 10874 priv->ieee->sec.flags |= SEC_LEVEL; 10875 priv->status |= STATUS_SECURITY_UPDATED; 10876 } 10877 10878 if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT)) 10879 ipw_set_hwcrypto_keys(priv); 10880 10881 /* To match current functionality of ipw2100 (which works well w/ 10882 * various supplicants, we don't force a disassociate if the 10883 * privacy capability changes ... */ 10884#if 0 10885 if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) && 10886 (((priv->assoc_request.capability & 10887 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && !sec->enabled) || 10888 (!(priv->assoc_request.capability & 10889 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && sec->enabled))) { 10890 IPW_DEBUG_ASSOC("Disassociating due to capability " 10891 "change.\n"); 10892 ipw_disassociate(priv); 10893 } 10894#endif 10895} 10896 10897static int init_supported_rates(struct ipw_priv *priv, 10898 struct ipw_supported_rates *rates) 10899{ 10900 /* TODO: Mask out rates based on priv->rates_mask */ 10901 10902 memset(rates, 0, sizeof(*rates)); 10903 /* configure supported rates */ 10904 switch (priv->ieee->freq_band) { 10905 case LIBIPW_52GHZ_BAND: 10906 rates->ieee_mode = IPW_A_MODE; 10907 rates->purpose = IPW_RATE_CAPABILITIES; 10908 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION, 10909 LIBIPW_OFDM_DEFAULT_RATES_MASK); 10910 break; 10911 10912 default: /* Mixed or 2.4Ghz */ 10913 rates->ieee_mode = IPW_G_MODE; 10914 rates->purpose = IPW_RATE_CAPABILITIES; 10915 ipw_add_cck_scan_rates(rates, LIBIPW_CCK_MODULATION, 10916 LIBIPW_CCK_DEFAULT_RATES_MASK); 10917 if (priv->ieee->modulation & LIBIPW_OFDM_MODULATION) { 10918 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION, 10919 LIBIPW_OFDM_DEFAULT_RATES_MASK); 10920 } 10921 break; 10922 } 10923 10924 return 0; 10925} 10926 10927static int ipw_config(struct ipw_priv *priv) 10928{ 10929 /* This is only called from ipw_up, which resets/reloads the firmware 10930 so, we don't need to first disable the card before we configure 10931 it */ 10932 if (ipw_set_tx_power(priv)) 10933 goto error; 10934 10935 /* initialize adapter address */ 10936 if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr)) 10937 goto error; 10938 10939 /* set basic system config settings */ 10940 init_sys_config(&priv->sys_config); 10941 10942 /* Support Bluetooth if we have BT h/w on board, and user wants to. 10943 * Does not support BT priority yet (don't abort or defer our Tx) */ 10944 if (bt_coexist) { 10945 unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY]; 10946 10947 if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG) 10948 priv->sys_config.bt_coexistence 10949 |= CFG_BT_COEXISTENCE_SIGNAL_CHNL; 10950 if (bt_caps & EEPROM_SKU_CAP_BT_OOB) 10951 priv->sys_config.bt_coexistence 10952 |= CFG_BT_COEXISTENCE_OOB; 10953 } 10954 10955#ifdef CONFIG_IPW2200_PROMISCUOUS 10956 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) { 10957 priv->sys_config.accept_all_data_frames = 1; 10958 priv->sys_config.accept_non_directed_frames = 1; 10959 priv->sys_config.accept_all_mgmt_bcpr = 1; 10960 priv->sys_config.accept_all_mgmt_frames = 1; 10961 } 10962#endif 10963 10964 if (priv->ieee->iw_mode == IW_MODE_ADHOC) 10965 priv->sys_config.answer_broadcast_ssid_probe = 1; 10966 else 10967 priv->sys_config.answer_broadcast_ssid_probe = 0; 10968 10969 if (ipw_send_system_config(priv)) 10970 goto error; 10971 10972 init_supported_rates(priv, &priv->rates); 10973 if (ipw_send_supported_rates(priv, &priv->rates)) 10974 goto error; 10975 10976 /* Set request-to-send threshold */ 10977 if (priv->rts_threshold) { 10978 if (ipw_send_rts_threshold(priv, priv->rts_threshold)) 10979 goto error; 10980 } 10981#ifdef CONFIG_IPW2200_QOS 10982 IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n"); 10983 ipw_qos_activate(priv, NULL); 10984#endif /* CONFIG_IPW2200_QOS */ 10985 10986 if (ipw_set_random_seed(priv)) 10987 goto error; 10988 10989 /* final state transition to the RUN state */ 10990 if (ipw_send_host_complete(priv)) 10991 goto error; 10992 10993 priv->status |= STATUS_INIT; 10994 10995 ipw_led_init(priv); 10996 ipw_led_radio_on(priv); 10997 priv->notif_missed_beacons = 0; 10998 10999 /* Set hardware WEP key if it is configured. */ 11000 if ((priv->capability & CAP_PRIVACY_ON) && 11001 (priv->ieee->sec.level == SEC_LEVEL_1) && 11002 !(priv->ieee->host_encrypt || priv->ieee->host_decrypt)) 11003 ipw_set_hwcrypto_keys(priv); 11004 11005 return 0; 11006 11007 error: 11008 return -EIO; 11009} 11010 11011/* 11012 * NOTE: 11013 * 11014 * These tables have been tested in conjunction with the 11015 * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters. 11016 * 11017 * Altering this values, using it on other hardware, or in geographies 11018 * not intended for resale of the above mentioned Intel adapters has 11019 * not been tested. 11020 * 11021 * Remember to update the table in README.ipw2200 when changing this 11022 * table. 11023 * 11024 */ 11025static const struct libipw_geo ipw_geos[] = { 11026 { /* Restricted */ 11027 "---", 11028 .bg_channels = 11, 11029 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11030 {2427, 4}, {2432, 5}, {2437, 6}, 11031 {2442, 7}, {2447, 8}, {2452, 9}, 11032 {2457, 10}, {2462, 11}}, 11033 }, 11034 11035 { /* Custom US/Canada */ 11036 "ZZF", 11037 .bg_channels = 11, 11038 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11039 {2427, 4}, {2432, 5}, {2437, 6}, 11040 {2442, 7}, {2447, 8}, {2452, 9}, 11041 {2457, 10}, {2462, 11}}, 11042 .a_channels = 8, 11043 .a = {{5180, 36}, 11044 {5200, 40}, 11045 {5220, 44}, 11046 {5240, 48}, 11047 {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, 11048 {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, 11049 {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, 11050 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}}, 11051 }, 11052 11053 { /* Rest of World */ 11054 "ZZD", 11055 .bg_channels = 13, 11056 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11057 {2427, 4}, {2432, 5}, {2437, 6}, 11058 {2442, 7}, {2447, 8}, {2452, 9}, 11059 {2457, 10}, {2462, 11}, {2467, 12}, 11060 {2472, 13}}, 11061 }, 11062 11063 { /* Custom USA & Europe & High */ 11064 "ZZA", 11065 .bg_channels = 11, 11066 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11067 {2427, 4}, {2432, 5}, {2437, 6}, 11068 {2442, 7}, {2447, 8}, {2452, 9}, 11069 {2457, 10}, {2462, 11}}, 11070 .a_channels = 13, 11071 .a = {{5180, 36}, 11072 {5200, 40}, 11073 {5220, 44}, 11074 {5240, 48}, 11075 {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, 11076 {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, 11077 {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, 11078 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, 11079 {5745, 149}, 11080 {5765, 153}, 11081 {5785, 157}, 11082 {5805, 161}, 11083 {5825, 165}}, 11084 }, 11085 11086 { /* Custom NA & Europe */ 11087 "ZZB", 11088 .bg_channels = 11, 11089 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11090 {2427, 4}, {2432, 5}, {2437, 6}, 11091 {2442, 7}, {2447, 8}, {2452, 9}, 11092 {2457, 10}, {2462, 11}}, 11093 .a_channels = 13, 11094 .a = {{5180, 36}, 11095 {5200, 40}, 11096 {5220, 44}, 11097 {5240, 48}, 11098 {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, 11099 {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, 11100 {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, 11101 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, 11102 {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, 11103 {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, 11104 {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, 11105 {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, 11106 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, 11107 }, 11108 11109 { /* Custom Japan */ 11110 "ZZC", 11111 .bg_channels = 11, 11112 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11113 {2427, 4}, {2432, 5}, {2437, 6}, 11114 {2442, 7}, {2447, 8}, {2452, 9}, 11115 {2457, 10}, {2462, 11}}, 11116 .a_channels = 4, 11117 .a = {{5170, 34}, {5190, 38}, 11118 {5210, 42}, {5230, 46}}, 11119 }, 11120 11121 { /* Custom */ 11122 "ZZM", 11123 .bg_channels = 11, 11124 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11125 {2427, 4}, {2432, 5}, {2437, 6}, 11126 {2442, 7}, {2447, 8}, {2452, 9}, 11127 {2457, 10}, {2462, 11}}, 11128 }, 11129 11130 { /* Europe */ 11131 "ZZE", 11132 .bg_channels = 13, 11133 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11134 {2427, 4}, {2432, 5}, {2437, 6}, 11135 {2442, 7}, {2447, 8}, {2452, 9}, 11136 {2457, 10}, {2462, 11}, {2467, 12}, 11137 {2472, 13}}, 11138 .a_channels = 19, 11139 .a = {{5180, 36}, 11140 {5200, 40}, 11141 {5220, 44}, 11142 {5240, 48}, 11143 {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, 11144 {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, 11145 {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, 11146 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, 11147 {5500, 100, LIBIPW_CH_PASSIVE_ONLY}, 11148 {5520, 104, LIBIPW_CH_PASSIVE_ONLY}, 11149 {5540, 108, LIBIPW_CH_PASSIVE_ONLY}, 11150 {5560, 112, LIBIPW_CH_PASSIVE_ONLY}, 11151 {5580, 116, LIBIPW_CH_PASSIVE_ONLY}, 11152 {5600, 120, LIBIPW_CH_PASSIVE_ONLY}, 11153 {5620, 124, LIBIPW_CH_PASSIVE_ONLY}, 11154 {5640, 128, LIBIPW_CH_PASSIVE_ONLY}, 11155 {5660, 132, LIBIPW_CH_PASSIVE_ONLY}, 11156 {5680, 136, LIBIPW_CH_PASSIVE_ONLY}, 11157 {5700, 140, LIBIPW_CH_PASSIVE_ONLY}}, 11158 }, 11159 11160 { /* Custom Japan */ 11161 "ZZJ", 11162 .bg_channels = 14, 11163 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11164 {2427, 4}, {2432, 5}, {2437, 6}, 11165 {2442, 7}, {2447, 8}, {2452, 9}, 11166 {2457, 10}, {2462, 11}, {2467, 12}, 11167 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY}}, 11168 .a_channels = 4, 11169 .a = {{5170, 34}, {5190, 38}, 11170 {5210, 42}, {5230, 46}}, 11171 }, 11172 11173 { /* Rest of World */ 11174 "ZZR", 11175 .bg_channels = 14, 11176 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11177 {2427, 4}, {2432, 5}, {2437, 6}, 11178 {2442, 7}, {2447, 8}, {2452, 9}, 11179 {2457, 10}, {2462, 11}, {2467, 12}, 11180 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY | 11181 LIBIPW_CH_PASSIVE_ONLY}}, 11182 }, 11183 11184 { /* High Band */ 11185 "ZZH", 11186 .bg_channels = 13, 11187 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11188 {2427, 4}, {2432, 5}, {2437, 6}, 11189 {2442, 7}, {2447, 8}, {2452, 9}, 11190 {2457, 10}, {2462, 11}, 11191 {2467, 12, LIBIPW_CH_PASSIVE_ONLY}, 11192 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}}, 11193 .a_channels = 4, 11194 .a = {{5745, 149}, {5765, 153}, 11195 {5785, 157}, {5805, 161}}, 11196 }, 11197 11198 { /* Custom Europe */ 11199 "ZZG", 11200 .bg_channels = 13, 11201 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11202 {2427, 4}, {2432, 5}, {2437, 6}, 11203 {2442, 7}, {2447, 8}, {2452, 9}, 11204 {2457, 10}, {2462, 11}, 11205 {2467, 12}, {2472, 13}}, 11206 .a_channels = 4, 11207 .a = {{5180, 36}, {5200, 40}, 11208 {5220, 44}, {5240, 48}}, 11209 }, 11210 11211 { /* Europe */ 11212 "ZZK", 11213 .bg_channels = 13, 11214 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11215 {2427, 4}, {2432, 5}, {2437, 6}, 11216 {2442, 7}, {2447, 8}, {2452, 9}, 11217 {2457, 10}, {2462, 11}, 11218 {2467, 12, LIBIPW_CH_PASSIVE_ONLY}, 11219 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}}, 11220 .a_channels = 24, 11221 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY}, 11222 {5200, 40, LIBIPW_CH_PASSIVE_ONLY}, 11223 {5220, 44, LIBIPW_CH_PASSIVE_ONLY}, 11224 {5240, 48, LIBIPW_CH_PASSIVE_ONLY}, 11225 {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, 11226 {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, 11227 {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, 11228 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, 11229 {5500, 100, LIBIPW_CH_PASSIVE_ONLY}, 11230 {5520, 104, LIBIPW_CH_PASSIVE_ONLY}, 11231 {5540, 108, LIBIPW_CH_PASSIVE_ONLY}, 11232 {5560, 112, LIBIPW_CH_PASSIVE_ONLY}, 11233 {5580, 116, LIBIPW_CH_PASSIVE_ONLY}, 11234 {5600, 120, LIBIPW_CH_PASSIVE_ONLY}, 11235 {5620, 124, LIBIPW_CH_PASSIVE_ONLY}, 11236 {5640, 128, LIBIPW_CH_PASSIVE_ONLY}, 11237 {5660, 132, LIBIPW_CH_PASSIVE_ONLY}, 11238 {5680, 136, LIBIPW_CH_PASSIVE_ONLY}, 11239 {5700, 140, LIBIPW_CH_PASSIVE_ONLY}, 11240 {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, 11241 {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, 11242 {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, 11243 {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, 11244 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, 11245 }, 11246 11247 { /* Europe */ 11248 "ZZL", 11249 .bg_channels = 11, 11250 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 11251 {2427, 4}, {2432, 5}, {2437, 6}, 11252 {2442, 7}, {2447, 8}, {2452, 9}, 11253 {2457, 10}, {2462, 11}}, 11254 .a_channels = 13, 11255 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY}, 11256 {5200, 40, LIBIPW_CH_PASSIVE_ONLY}, 11257 {5220, 44, LIBIPW_CH_PASSIVE_ONLY}, 11258 {5240, 48, LIBIPW_CH_PASSIVE_ONLY}, 11259 {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, 11260 {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, 11261 {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, 11262 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, 11263 {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, 11264 {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, 11265 {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, 11266 {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, 11267 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, 11268 } 11269}; 11270 11271#define MAX_HW_RESTARTS 5 11272static int ipw_up(struct ipw_priv *priv) 11273{ 11274 int rc, i, j; 11275 11276 /* Age scan list entries found before suspend */ 11277 if (priv->suspend_time) { 11278 libipw_networks_age(priv->ieee, priv->suspend_time); 11279 priv->suspend_time = 0; 11280 } 11281 11282 if (priv->status & STATUS_EXIT_PENDING) 11283 return -EIO; 11284 11285 if (cmdlog && !priv->cmdlog) { 11286 priv->cmdlog = kcalloc(cmdlog, sizeof(*priv->cmdlog), 11287 GFP_KERNEL); 11288 if (priv->cmdlog == NULL) { 11289 IPW_ERROR("Error allocating %d command log entries.\n", 11290 cmdlog); 11291 return -ENOMEM; 11292 } else { 11293 priv->cmdlog_len = cmdlog; 11294 } 11295 } 11296 11297 for (i = 0; i < MAX_HW_RESTARTS; i++) { 11298 /* Load the microcode, firmware, and eeprom. 11299 * Also start the clocks. */ 11300 rc = ipw_load(priv); 11301 if (rc) { 11302 IPW_ERROR("Unable to load firmware: %d\n", rc); 11303 return rc; 11304 } 11305 11306 ipw_init_ordinals(priv); 11307 if (!(priv->config & CFG_CUSTOM_MAC)) 11308 eeprom_parse_mac(priv, priv->mac_addr); 11309 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN); 11310 memcpy(priv->net_dev->perm_addr, priv->mac_addr, ETH_ALEN); 11311 11312 for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) { 11313 if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE], 11314 ipw_geos[j].name, 3)) 11315 break; 11316 } 11317 if (j == ARRAY_SIZE(ipw_geos)) { 11318 IPW_WARNING("SKU [%c%c%c] not recognized.\n", 11319 priv->eeprom[EEPROM_COUNTRY_CODE + 0], 11320 priv->eeprom[EEPROM_COUNTRY_CODE + 1], 11321 priv->eeprom[EEPROM_COUNTRY_CODE + 2]); 11322 j = 0; 11323 } 11324 if (libipw_set_geo(priv->ieee, &ipw_geos[j])) { 11325 IPW_WARNING("Could not set geography."); 11326 return 0; 11327 } 11328 11329 if (priv->status & STATUS_RF_KILL_SW) { 11330 IPW_WARNING("Radio disabled by module parameter.\n"); 11331 return 0; 11332 } else if (rf_kill_active(priv)) { 11333 IPW_WARNING("Radio Frequency Kill Switch is On:\n" 11334 "Kill switch must be turned off for " 11335 "wireless networking to work.\n"); 11336 schedule_delayed_work(&priv->rf_kill, 2 * HZ); 11337 return 0; 11338 } 11339 11340 rc = ipw_config(priv); 11341 if (!rc) { 11342 IPW_DEBUG_INFO("Configured device on count %i\n", i); 11343 11344 /* If configure to try and auto-associate, kick 11345 * off a scan. */ 11346 schedule_delayed_work(&priv->request_scan, 0); 11347 11348 return 0; 11349 } 11350 11351 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc); 11352 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n", 11353 i, MAX_HW_RESTARTS); 11354 11355 /* We had an error bringing up the hardware, so take it 11356 * all the way back down so we can try again */ 11357 ipw_down(priv); 11358 } 11359 11360 /* tried to restart and config the device for as long as our 11361 * patience could withstand */ 11362 IPW_ERROR("Unable to initialize device after %d attempts.\n", i); 11363 11364 return -EIO; 11365} 11366 11367static void ipw_bg_up(struct work_struct *work) 11368{ 11369 struct ipw_priv *priv = 11370 container_of(work, struct ipw_priv, up); 11371 mutex_lock(&priv->mutex); 11372 ipw_up(priv); 11373 mutex_unlock(&priv->mutex); 11374} 11375 11376static void ipw_deinit(struct ipw_priv *priv) 11377{ 11378 int i; 11379 11380 if (priv->status & STATUS_SCANNING) { 11381 IPW_DEBUG_INFO("Aborting scan during shutdown.\n"); 11382 ipw_abort_scan(priv); 11383 } 11384 11385 if (priv->status & STATUS_ASSOCIATED) { 11386 IPW_DEBUG_INFO("Disassociating during shutdown.\n"); 11387 ipw_disassociate(priv); 11388 } 11389 11390 ipw_led_shutdown(priv); 11391 11392 /* Wait up to 1s for status to change to not scanning and not 11393 * associated (disassociation can take a while for a ful 802.11 11394 * exchange */ 11395 for (i = 1000; i && (priv->status & 11396 (STATUS_DISASSOCIATING | 11397 STATUS_ASSOCIATED | STATUS_SCANNING)); i--) 11398 udelay(10); 11399 11400 if (priv->status & (STATUS_DISASSOCIATING | 11401 STATUS_ASSOCIATED | STATUS_SCANNING)) 11402 IPW_DEBUG_INFO("Still associated or scanning...\n"); 11403 else 11404 IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i); 11405 11406 /* Attempt to disable the card */ 11407 ipw_send_card_disable(priv, 0); 11408 11409 priv->status &= ~STATUS_INIT; 11410} 11411 11412static void ipw_down(struct ipw_priv *priv) 11413{ 11414 int exit_pending = priv->status & STATUS_EXIT_PENDING; 11415 11416 priv->status |= STATUS_EXIT_PENDING; 11417 11418 if (ipw_is_init(priv)) 11419 ipw_deinit(priv); 11420 11421 /* Wipe out the EXIT_PENDING status bit if we are not actually 11422 * exiting the module */ 11423 if (!exit_pending) 11424 priv->status &= ~STATUS_EXIT_PENDING; 11425 11426 /* tell the device to stop sending interrupts */ 11427 ipw_disable_interrupts(priv); 11428 11429 /* Clear all bits but the RF Kill */ 11430 priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING; 11431 netif_carrier_off(priv->net_dev); 11432 11433 ipw_stop_nic(priv); 11434 11435 ipw_led_radio_off(priv); 11436} 11437 11438static void ipw_bg_down(struct work_struct *work) 11439{ 11440 struct ipw_priv *priv = 11441 container_of(work, struct ipw_priv, down); 11442 mutex_lock(&priv->mutex); 11443 ipw_down(priv); 11444 mutex_unlock(&priv->mutex); 11445} 11446 11447/* Called by register_netdev() */ 11448static int ipw_net_init(struct net_device *dev) 11449{ 11450 int rc = 0; 11451 struct ipw_priv *priv = libipw_priv(dev); 11452 11453 mutex_lock(&priv->mutex); 11454 if (ipw_up(priv)) 11455 rc = -EIO; 11456 mutex_unlock(&priv->mutex); 11457 11458 return rc; 11459} 11460 11461static int ipw_wdev_init(struct net_device *dev) 11462{ 11463 int i, rc = 0; 11464 struct ipw_priv *priv = libipw_priv(dev); 11465 const struct libipw_geo *geo = libipw_get_geo(priv->ieee); 11466 struct wireless_dev *wdev = &priv->ieee->wdev; 11467 11468 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN); 11469 11470 /* fill-out priv->ieee->bg_band */ 11471 if (geo->bg_channels) { 11472 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band; 11473 11474 bg_band->band = IEEE80211_BAND_2GHZ; 11475 bg_band->n_channels = geo->bg_channels; 11476 bg_band->channels = kcalloc(geo->bg_channels, 11477 sizeof(struct ieee80211_channel), 11478 GFP_KERNEL); 11479 if (!bg_band->channels) { 11480 rc = -ENOMEM; 11481 goto out; 11482 } 11483 /* translate geo->bg to bg_band.channels */ 11484 for (i = 0; i < geo->bg_channels; i++) { 11485 bg_band->channels[i].band = IEEE80211_BAND_2GHZ; 11486 bg_band->channels[i].center_freq = geo->bg[i].freq; 11487 bg_band->channels[i].hw_value = geo->bg[i].channel; 11488 bg_band->channels[i].max_power = geo->bg[i].max_power; 11489 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) 11490 bg_band->channels[i].flags |= 11491 IEEE80211_CHAN_PASSIVE_SCAN; 11492 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS) 11493 bg_band->channels[i].flags |= 11494 IEEE80211_CHAN_NO_IBSS; 11495 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT) 11496 bg_band->channels[i].flags |= 11497 IEEE80211_CHAN_RADAR; 11498 /* No equivalent for LIBIPW_CH_80211H_RULES, 11499 LIBIPW_CH_UNIFORM_SPREADING, or 11500 LIBIPW_CH_B_ONLY... */ 11501 } 11502 /* point at bitrate info */ 11503 bg_band->bitrates = ipw2200_bg_rates; 11504 bg_band->n_bitrates = ipw2200_num_bg_rates; 11505 11506 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = bg_band; 11507 } 11508 11509 /* fill-out priv->ieee->a_band */ 11510 if (geo->a_channels) { 11511 struct ieee80211_supported_band *a_band = &priv->ieee->a_band; 11512 11513 a_band->band = IEEE80211_BAND_5GHZ; 11514 a_band->n_channels = geo->a_channels; 11515 a_band->channels = kcalloc(geo->a_channels, 11516 sizeof(struct ieee80211_channel), 11517 GFP_KERNEL); 11518 if (!a_band->channels) { 11519 rc = -ENOMEM; 11520 goto out; 11521 } 11522 /* translate geo->a to a_band.channels */ 11523 for (i = 0; i < geo->a_channels; i++) { 11524 a_band->channels[i].band = IEEE80211_BAND_5GHZ; 11525 a_band->channels[i].center_freq = geo->a[i].freq; 11526 a_band->channels[i].hw_value = geo->a[i].channel; 11527 a_band->channels[i].max_power = geo->a[i].max_power; 11528 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) 11529 a_band->channels[i].flags |= 11530 IEEE80211_CHAN_PASSIVE_SCAN; 11531 if (geo->a[i].flags & LIBIPW_CH_NO_IBSS) 11532 a_band->channels[i].flags |= 11533 IEEE80211_CHAN_NO_IBSS; 11534 if (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT) 11535 a_band->channels[i].flags |= 11536 IEEE80211_CHAN_RADAR; 11537 /* No equivalent for LIBIPW_CH_80211H_RULES, 11538 LIBIPW_CH_UNIFORM_SPREADING, or 11539 LIBIPW_CH_B_ONLY... */ 11540 } 11541 /* point at bitrate info */ 11542 a_band->bitrates = ipw2200_a_rates; 11543 a_band->n_bitrates = ipw2200_num_a_rates; 11544 11545 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = a_band; 11546 } 11547 11548 wdev->wiphy->cipher_suites = ipw_cipher_suites; 11549 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites); 11550 11551 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev); 11552 11553 /* With that information in place, we can now register the wiphy... */ 11554 if (wiphy_register(wdev->wiphy)) 11555 rc = -EIO; 11556out: 11557 return rc; 11558} 11559 11560/* PCI driver stuff */ 11561static DEFINE_PCI_DEVICE_TABLE(card_ids) = { 11562 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0}, 11563 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0}, 11564 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0}, 11565 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0}, 11566 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0}, 11567 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0}, 11568 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0}, 11569 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0}, 11570 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0}, 11571 {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0}, 11572 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0}, 11573 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0}, 11574 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0}, 11575 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0}, 11576 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0}, 11577 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0}, 11578 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0}, 11579 {PCI_VDEVICE(INTEL, 0x104f), 0}, 11580 {PCI_VDEVICE(INTEL, 0x4220), 0}, /* BG */ 11581 {PCI_VDEVICE(INTEL, 0x4221), 0}, /* BG */ 11582 {PCI_VDEVICE(INTEL, 0x4223), 0}, /* ABG */ 11583 {PCI_VDEVICE(INTEL, 0x4224), 0}, /* ABG */ 11584 11585 /* required last entry */ 11586 {0,} 11587}; 11588 11589MODULE_DEVICE_TABLE(pci, card_ids); 11590 11591static struct attribute *ipw_sysfs_entries[] = { 11592 &dev_attr_rf_kill.attr, 11593 &dev_attr_direct_dword.attr, 11594 &dev_attr_indirect_byte.attr, 11595 &dev_attr_indirect_dword.attr, 11596 &dev_attr_mem_gpio_reg.attr, 11597 &dev_attr_command_event_reg.attr, 11598 &dev_attr_nic_type.attr, 11599 &dev_attr_status.attr, 11600 &dev_attr_cfg.attr, 11601 &dev_attr_error.attr, 11602 &dev_attr_event_log.attr, 11603 &dev_attr_cmd_log.attr, 11604 &dev_attr_eeprom_delay.attr, 11605 &dev_attr_ucode_version.attr, 11606 &dev_attr_rtc.attr, 11607 &dev_attr_scan_age.attr, 11608 &dev_attr_led.attr, 11609 &dev_attr_speed_scan.attr, 11610 &dev_attr_net_stats.attr, 11611 &dev_attr_channels.attr, 11612#ifdef CONFIG_IPW2200_PROMISCUOUS 11613 &dev_attr_rtap_iface.attr, 11614 &dev_attr_rtap_filter.attr, 11615#endif 11616 NULL 11617}; 11618 11619static struct attribute_group ipw_attribute_group = { 11620 .name = NULL, /* put in device directory */ 11621 .attrs = ipw_sysfs_entries, 11622}; 11623 11624#ifdef CONFIG_IPW2200_PROMISCUOUS 11625static int ipw_prom_open(struct net_device *dev) 11626{ 11627 struct ipw_prom_priv *prom_priv = libipw_priv(dev); 11628 struct ipw_priv *priv = prom_priv->priv; 11629 11630 IPW_DEBUG_INFO("prom dev->open\n"); 11631 netif_carrier_off(dev); 11632 11633 if (priv->ieee->iw_mode != IW_MODE_MONITOR) { 11634 priv->sys_config.accept_all_data_frames = 1; 11635 priv->sys_config.accept_non_directed_frames = 1; 11636 priv->sys_config.accept_all_mgmt_bcpr = 1; 11637 priv->sys_config.accept_all_mgmt_frames = 1; 11638 11639 ipw_send_system_config(priv); 11640 } 11641 11642 return 0; 11643} 11644 11645static int ipw_prom_stop(struct net_device *dev) 11646{ 11647 struct ipw_prom_priv *prom_priv = libipw_priv(dev); 11648 struct ipw_priv *priv = prom_priv->priv; 11649 11650 IPW_DEBUG_INFO("prom dev->stop\n"); 11651 11652 if (priv->ieee->iw_mode != IW_MODE_MONITOR) { 11653 priv->sys_config.accept_all_data_frames = 0; 11654 priv->sys_config.accept_non_directed_frames = 0; 11655 priv->sys_config.accept_all_mgmt_bcpr = 0; 11656 priv->sys_config.accept_all_mgmt_frames = 0; 11657 11658 ipw_send_system_config(priv); 11659 } 11660 11661 return 0; 11662} 11663 11664static netdev_tx_t ipw_prom_hard_start_xmit(struct sk_buff *skb, 11665 struct net_device *dev) 11666{ 11667 IPW_DEBUG_INFO("prom dev->xmit\n"); 11668 dev_kfree_skb(skb); 11669 return NETDEV_TX_OK; 11670} 11671 11672static const struct net_device_ops ipw_prom_netdev_ops = { 11673 .ndo_open = ipw_prom_open, 11674 .ndo_stop = ipw_prom_stop, 11675 .ndo_start_xmit = ipw_prom_hard_start_xmit, 11676 .ndo_change_mtu = libipw_change_mtu, 11677 .ndo_set_mac_address = eth_mac_addr, 11678 .ndo_validate_addr = eth_validate_addr, 11679}; 11680 11681static int ipw_prom_alloc(struct ipw_priv *priv) 11682{ 11683 int rc = 0; 11684 11685 if (priv->prom_net_dev) 11686 return -EPERM; 11687 11688 priv->prom_net_dev = alloc_libipw(sizeof(struct ipw_prom_priv), 1); 11689 if (priv->prom_net_dev == NULL) 11690 return -ENOMEM; 11691 11692 priv->prom_priv = libipw_priv(priv->prom_net_dev); 11693 priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev); 11694 priv->prom_priv->priv = priv; 11695 11696 strcpy(priv->prom_net_dev->name, "rtap%d"); 11697 memcpy(priv->prom_net_dev->dev_addr, priv->mac_addr, ETH_ALEN); 11698 11699 priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP; 11700 priv->prom_net_dev->netdev_ops = &ipw_prom_netdev_ops; 11701 11702 priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR; 11703 SET_NETDEV_DEV(priv->prom_net_dev, &priv->pci_dev->dev); 11704 11705 rc = register_netdev(priv->prom_net_dev); 11706 if (rc) { 11707 free_libipw(priv->prom_net_dev, 1); 11708 priv->prom_net_dev = NULL; 11709 return rc; 11710 } 11711 11712 return 0; 11713} 11714 11715static void ipw_prom_free(struct ipw_priv *priv) 11716{ 11717 if (!priv->prom_net_dev) 11718 return; 11719 11720 unregister_netdev(priv->prom_net_dev); 11721 free_libipw(priv->prom_net_dev, 1); 11722 11723 priv->prom_net_dev = NULL; 11724} 11725 11726#endif 11727 11728static const struct net_device_ops ipw_netdev_ops = { 11729 .ndo_init = ipw_net_init, 11730 .ndo_open = ipw_net_open, 11731 .ndo_stop = ipw_net_stop, 11732 .ndo_set_rx_mode = ipw_net_set_multicast_list, 11733 .ndo_set_mac_address = ipw_net_set_mac_address, 11734 .ndo_start_xmit = libipw_xmit, 11735 .ndo_change_mtu = libipw_change_mtu, 11736 .ndo_validate_addr = eth_validate_addr, 11737}; 11738 11739static int __devinit ipw_pci_probe(struct pci_dev *pdev, 11740 const struct pci_device_id *ent) 11741{ 11742 int err = 0; 11743 struct net_device *net_dev; 11744 void __iomem *base; 11745 u32 length, val; 11746 struct ipw_priv *priv; 11747 int i; 11748 11749 net_dev = alloc_libipw(sizeof(struct ipw_priv), 0); 11750 if (net_dev == NULL) { 11751 err = -ENOMEM; 11752 goto out; 11753 } 11754 11755 priv = libipw_priv(net_dev); 11756 priv->ieee = netdev_priv(net_dev); 11757 11758 priv->net_dev = net_dev; 11759 priv->pci_dev = pdev; 11760 ipw_debug_level = debug; 11761 spin_lock_init(&priv->irq_lock); 11762 spin_lock_init(&priv->lock); 11763 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) 11764 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]); 11765 11766 mutex_init(&priv->mutex); 11767 if (pci_enable_device(pdev)) { 11768 err = -ENODEV; 11769 goto out_free_libipw; 11770 } 11771 11772 pci_set_master(pdev); 11773 11774 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 11775 if (!err) 11776 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 11777 if (err) { 11778 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); 11779 goto out_pci_disable_device; 11780 } 11781 11782 pci_set_drvdata(pdev, priv); 11783 11784 err = pci_request_regions(pdev, DRV_NAME); 11785 if (err) 11786 goto out_pci_disable_device; 11787 11788 /* We disable the RETRY_TIMEOUT register (0x41) to keep 11789 * PCI Tx retries from interfering with C3 CPU state */ 11790 pci_read_config_dword(pdev, 0x40, &val); 11791 if ((val & 0x0000ff00) != 0) 11792 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); 11793 11794 length = pci_resource_len(pdev, 0); 11795 priv->hw_len = length; 11796 11797 base = pci_ioremap_bar(pdev, 0); 11798 if (!base) { 11799 err = -ENODEV; 11800 goto out_pci_release_regions; 11801 } 11802 11803 priv->hw_base = base; 11804 IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length); 11805 IPW_DEBUG_INFO("pci_resource_base = %p\n", base); 11806 11807 err = ipw_setup_deferred_work(priv); 11808 if (err) { 11809 IPW_ERROR("Unable to setup deferred work\n"); 11810 goto out_iounmap; 11811 } 11812 11813 ipw_sw_reset(priv, 1); 11814 11815 err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv); 11816 if (err) { 11817 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq); 11818 goto out_iounmap; 11819 } 11820 11821 SET_NETDEV_DEV(net_dev, &pdev->dev); 11822 11823 mutex_lock(&priv->mutex); 11824 11825 priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit; 11826 priv->ieee->set_security = shim__set_security; 11827 priv->ieee->is_queue_full = ipw_net_is_queue_full; 11828 11829#ifdef CONFIG_IPW2200_QOS 11830 priv->ieee->is_qos_active = ipw_is_qos_active; 11831 priv->ieee->handle_probe_response = ipw_handle_beacon; 11832 priv->ieee->handle_beacon = ipw_handle_probe_response; 11833 priv->ieee->handle_assoc_response = ipw_handle_assoc_response; 11834#endif /* CONFIG_IPW2200_QOS */ 11835 11836 priv->ieee->perfect_rssi = -20; 11837 priv->ieee->worst_rssi = -85; 11838 11839 net_dev->netdev_ops = &ipw_netdev_ops; 11840 priv->wireless_data.spy_data = &priv->ieee->spy_data; 11841 net_dev->wireless_data = &priv->wireless_data; 11842 net_dev->wireless_handlers = &ipw_wx_handler_def; 11843 net_dev->ethtool_ops = &ipw_ethtool_ops; 11844 net_dev->irq = pdev->irq; 11845 net_dev->base_addr = (unsigned long)priv->hw_base; 11846 net_dev->mem_start = pci_resource_start(pdev, 0); 11847 net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1; 11848 11849 err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group); 11850 if (err) { 11851 IPW_ERROR("failed to create sysfs device attributes\n"); 11852 mutex_unlock(&priv->mutex); 11853 goto out_release_irq; 11854 } 11855 11856 mutex_unlock(&priv->mutex); 11857 err = register_netdev(net_dev); 11858 if (err) { 11859 IPW_ERROR("failed to register network device\n"); 11860 goto out_remove_sysfs; 11861 } 11862 11863 err = ipw_wdev_init(net_dev); 11864 if (err) { 11865 IPW_ERROR("failed to register wireless device\n"); 11866 goto out_unregister_netdev; 11867 } 11868 11869#ifdef CONFIG_IPW2200_PROMISCUOUS 11870 if (rtap_iface) { 11871 err = ipw_prom_alloc(priv); 11872 if (err) { 11873 IPW_ERROR("Failed to register promiscuous network " 11874 "device (error %d).\n", err); 11875 wiphy_unregister(priv->ieee->wdev.wiphy); 11876 kfree(priv->ieee->a_band.channels); 11877 kfree(priv->ieee->bg_band.channels); 11878 goto out_unregister_netdev; 11879 } 11880 } 11881#endif 11882 11883 printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg " 11884 "channels, %d 802.11a channels)\n", 11885 priv->ieee->geo.name, priv->ieee->geo.bg_channels, 11886 priv->ieee->geo.a_channels); 11887 11888 return 0; 11889 11890 out_unregister_netdev: 11891 unregister_netdev(priv->net_dev); 11892 out_remove_sysfs: 11893 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); 11894 out_release_irq: 11895 free_irq(pdev->irq, priv); 11896 out_iounmap: 11897 iounmap(priv->hw_base); 11898 out_pci_release_regions: 11899 pci_release_regions(pdev); 11900 out_pci_disable_device: 11901 pci_disable_device(pdev); 11902 pci_set_drvdata(pdev, NULL); 11903 out_free_libipw: 11904 free_libipw(priv->net_dev, 0); 11905 out: 11906 return err; 11907} 11908 11909static void __devexit ipw_pci_remove(struct pci_dev *pdev) 11910{ 11911 struct ipw_priv *priv = pci_get_drvdata(pdev); 11912 struct list_head *p, *q; 11913 int i; 11914 11915 if (!priv) 11916 return; 11917 11918 mutex_lock(&priv->mutex); 11919 11920 priv->status |= STATUS_EXIT_PENDING; 11921 ipw_down(priv); 11922 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); 11923 11924 mutex_unlock(&priv->mutex); 11925 11926 unregister_netdev(priv->net_dev); 11927 11928 if (priv->rxq) { 11929 ipw_rx_queue_free(priv, priv->rxq); 11930 priv->rxq = NULL; 11931 } 11932 ipw_tx_queue_free(priv); 11933 11934 if (priv->cmdlog) { 11935 kfree(priv->cmdlog); 11936 priv->cmdlog = NULL; 11937 } 11938 11939 /* make sure all works are inactive */ 11940 cancel_delayed_work_sync(&priv->adhoc_check); 11941 cancel_work_sync(&priv->associate); 11942 cancel_work_sync(&priv->disassociate); 11943 cancel_work_sync(&priv->system_config); 11944 cancel_work_sync(&priv->rx_replenish); 11945 cancel_work_sync(&priv->adapter_restart); 11946 cancel_delayed_work_sync(&priv->rf_kill); 11947 cancel_work_sync(&priv->up); 11948 cancel_work_sync(&priv->down); 11949 cancel_delayed_work_sync(&priv->request_scan); 11950 cancel_delayed_work_sync(&priv->request_direct_scan); 11951 cancel_delayed_work_sync(&priv->request_passive_scan); 11952 cancel_delayed_work_sync(&priv->scan_event); 11953 cancel_delayed_work_sync(&priv->gather_stats); 11954 cancel_work_sync(&priv->abort_scan); 11955 cancel_work_sync(&priv->roam); 11956 cancel_delayed_work_sync(&priv->scan_check); 11957 cancel_work_sync(&priv->link_up); 11958 cancel_work_sync(&priv->link_down); 11959 cancel_delayed_work_sync(&priv->led_link_on); 11960 cancel_delayed_work_sync(&priv->led_link_off); 11961 cancel_delayed_work_sync(&priv->led_act_off); 11962 cancel_work_sync(&priv->merge_networks); 11963 11964 /* Free MAC hash list for ADHOC */ 11965 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) { 11966 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { 11967 list_del(p); 11968 kfree(list_entry(p, struct ipw_ibss_seq, list)); 11969 } 11970 } 11971 11972 kfree(priv->error); 11973 priv->error = NULL; 11974 11975#ifdef CONFIG_IPW2200_PROMISCUOUS 11976 ipw_prom_free(priv); 11977#endif 11978 11979 free_irq(pdev->irq, priv); 11980 iounmap(priv->hw_base); 11981 pci_release_regions(pdev); 11982 pci_disable_device(pdev); 11983 pci_set_drvdata(pdev, NULL); 11984 /* wiphy_unregister needs to be here, before free_libipw */ 11985 wiphy_unregister(priv->ieee->wdev.wiphy); 11986 kfree(priv->ieee->a_band.channels); 11987 kfree(priv->ieee->bg_band.channels); 11988 free_libipw(priv->net_dev, 0); 11989 free_firmware(); 11990} 11991 11992#ifdef CONFIG_PM 11993static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state) 11994{ 11995 struct ipw_priv *priv = pci_get_drvdata(pdev); 11996 struct net_device *dev = priv->net_dev; 11997 11998 printk(KERN_INFO "%s: Going into suspend...\n", dev->name); 11999 12000 /* Take down the device; powers it off, etc. */ 12001 ipw_down(priv); 12002 12003 /* Remove the PRESENT state of the device */ 12004 netif_device_detach(dev); 12005 12006 pci_save_state(pdev); 12007 pci_disable_device(pdev); 12008 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 12009 12010 priv->suspend_at = get_seconds(); 12011 12012 return 0; 12013} 12014 12015static int ipw_pci_resume(struct pci_dev *pdev) 12016{ 12017 struct ipw_priv *priv = pci_get_drvdata(pdev); 12018 struct net_device *dev = priv->net_dev; 12019 int err; 12020 u32 val; 12021 12022 printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name); 12023 12024 pci_set_power_state(pdev, PCI_D0); 12025 err = pci_enable_device(pdev); 12026 if (err) { 12027 printk(KERN_ERR "%s: pci_enable_device failed on resume\n", 12028 dev->name); 12029 return err; 12030 } 12031 pci_restore_state(pdev); 12032 12033 /* 12034 * Suspend/Resume resets the PCI configuration space, so we have to 12035 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries 12036 * from interfering with C3 CPU state. pci_restore_state won't help 12037 * here since it only restores the first 64 bytes pci config header. 12038 */ 12039 pci_read_config_dword(pdev, 0x40, &val); 12040 if ((val & 0x0000ff00) != 0) 12041 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); 12042 12043 /* Set the device back into the PRESENT state; this will also wake 12044 * the queue of needed */ 12045 netif_device_attach(dev); 12046 12047 priv->suspend_time = get_seconds() - priv->suspend_at; 12048 12049 /* Bring the device back up */ 12050 schedule_work(&priv->up); 12051 12052 return 0; 12053} 12054#endif 12055 12056static void ipw_pci_shutdown(struct pci_dev *pdev) 12057{ 12058 struct ipw_priv *priv = pci_get_drvdata(pdev); 12059 12060 /* Take down the device; powers it off, etc. */ 12061 ipw_down(priv); 12062 12063 pci_disable_device(pdev); 12064} 12065 12066/* driver initialization stuff */ 12067static struct pci_driver ipw_driver = { 12068 .name = DRV_NAME, 12069 .id_table = card_ids, 12070 .probe = ipw_pci_probe, 12071 .remove = __devexit_p(ipw_pci_remove), 12072#ifdef CONFIG_PM 12073 .suspend = ipw_pci_suspend, 12074 .resume = ipw_pci_resume, 12075#endif 12076 .shutdown = ipw_pci_shutdown, 12077}; 12078 12079static int __init ipw_init(void) 12080{ 12081 int ret; 12082 12083 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); 12084 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); 12085 12086 ret = pci_register_driver(&ipw_driver); 12087 if (ret) { 12088 IPW_ERROR("Unable to initialize PCI module\n"); 12089 return ret; 12090 } 12091 12092 ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level); 12093 if (ret) { 12094 IPW_ERROR("Unable to create driver sysfs file\n"); 12095 pci_unregister_driver(&ipw_driver); 12096 return ret; 12097 } 12098 12099 return ret; 12100} 12101 12102static void __exit ipw_exit(void) 12103{ 12104 driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level); 12105 pci_unregister_driver(&ipw_driver); 12106} 12107 12108module_param(disable, int, 0444); 12109MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); 12110 12111module_param(associate, int, 0444); 12112MODULE_PARM_DESC(associate, "auto associate when scanning (default off)"); 12113 12114module_param(auto_create, int, 0444); 12115MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)"); 12116 12117module_param_named(led, led_support, int, 0444); 12118MODULE_PARM_DESC(led, "enable led control on some systems (default 1 on)"); 12119 12120module_param(debug, int, 0444); 12121MODULE_PARM_DESC(debug, "debug output mask"); 12122 12123module_param_named(channel, default_channel, int, 0444); 12124MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])"); 12125 12126#ifdef CONFIG_IPW2200_PROMISCUOUS 12127module_param(rtap_iface, int, 0444); 12128MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)"); 12129#endif 12130 12131#ifdef CONFIG_IPW2200_QOS 12132module_param(qos_enable, int, 0444); 12133MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis"); 12134 12135module_param(qos_burst_enable, int, 0444); 12136MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode"); 12137 12138module_param(qos_no_ack_mask, int, 0444); 12139MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack"); 12140 12141module_param(burst_duration_CCK, int, 0444); 12142MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value"); 12143 12144module_param(burst_duration_OFDM, int, 0444); 12145MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value"); 12146#endif /* CONFIG_IPW2200_QOS */ 12147 12148#ifdef CONFIG_IPW2200_MONITOR 12149module_param_named(mode, network_mode, int, 0444); 12150MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)"); 12151#else 12152module_param_named(mode, network_mode, int, 0444); 12153MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)"); 12154#endif 12155 12156module_param(bt_coexist, int, 0444); 12157MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)"); 12158 12159module_param(hwcrypto, int, 0444); 12160MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)"); 12161 12162module_param(cmdlog, int, 0444); 12163MODULE_PARM_DESC(cmdlog, 12164 "allocate a ring buffer for logging firmware commands"); 12165 12166module_param(roaming, int, 0444); 12167MODULE_PARM_DESC(roaming, "enable roaming support (default on)"); 12168 12169module_param(antenna, int, 0444); 12170MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)"); 12171 12172module_exit(ipw_exit); 12173module_init(ipw_init); 12174