ipw2100.c revision a3caa99e6c68f466c13cfea74097f6fb01b45e25
1/****************************************************************************** 2 3 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved. 4 5 This program is free software; you can redistribute it and/or modify it 6 under the terms of version 2 of the GNU General Public License as 7 published by the Free Software Foundation. 8 9 This program is distributed in the hope that it will be useful, but WITHOUT 10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 more details. 13 14 You should have received a copy of the GNU General Public License along with 15 this program; if not, write to the Free Software Foundation, Inc., 59 16 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 18 The full GNU General Public License is included in this distribution in the 19 file called LICENSE. 20 21 Contact Information: 22 Intel Linux Wireless <ilw@linux.intel.com> 23 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 24 25 Portions of this file are based on the sample_* files provided by Wireless 26 Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes 27 <jt@hpl.hp.com> 28 29 Portions of this file are based on the Host AP project, 30 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen 31 <j@w1.fi> 32 Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> 33 34 Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and 35 ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c 36 available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox 37 38******************************************************************************/ 39/* 40 41 Initial driver on which this is based was developed by Janusz Gorycki, 42 Maciej Urbaniak, and Maciej Sosnowski. 43 44 Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak. 45 46Theory of Operation 47 48Tx - Commands and Data 49 50Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs) 51Each TBD contains a pointer to the physical (dma_addr_t) address of data being 52sent to the firmware as well as the length of the data. 53 54The host writes to the TBD queue at the WRITE index. The WRITE index points 55to the _next_ packet to be written and is advanced when after the TBD has been 56filled. 57 58The firmware pulls from the TBD queue at the READ index. The READ index points 59to the currently being read entry, and is advanced once the firmware is 60done with a packet. 61 62When data is sent to the firmware, the first TBD is used to indicate to the 63firmware if a Command or Data is being sent. If it is Command, all of the 64command information is contained within the physical address referred to by the 65TBD. If it is Data, the first TBD indicates the type of data packet, number 66of fragments, etc. The next TBD then referrs to the actual packet location. 67 68The Tx flow cycle is as follows: 69 701) ipw2100_tx() is called by kernel with SKB to transmit 712) Packet is move from the tx_free_list and appended to the transmit pending 72 list (tx_pend_list) 733) work is scheduled to move pending packets into the shared circular queue. 744) when placing packet in the circular queue, the incoming SKB is DMA mapped 75 to a physical address. That address is entered into a TBD. Two TBDs are 76 filled out. The first indicating a data packet, the second referring to the 77 actual payload data. 785) the packet is removed from tx_pend_list and placed on the end of the 79 firmware pending list (fw_pend_list) 806) firmware is notified that the WRITE index has 817) Once the firmware has processed the TBD, INTA is triggered. 828) For each Tx interrupt received from the firmware, the READ index is checked 83 to see which TBDs are done being processed. 849) For each TBD that has been processed, the ISR pulls the oldest packet 85 from the fw_pend_list. 8610)The packet structure contained in the fw_pend_list is then used 87 to unmap the DMA address and to free the SKB originally passed to the driver 88 from the kernel. 8911)The packet structure is placed onto the tx_free_list 90 91The above steps are the same for commands, only the msg_free_list/msg_pend_list 92are used instead of tx_free_list/tx_pend_list 93 94... 95 96Critical Sections / Locking : 97 98There are two locks utilized. The first is the low level lock (priv->low_lock) 99that protects the following: 100 101- Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows: 102 103 tx_free_list : Holds pre-allocated Tx buffers. 104 TAIL modified in __ipw2100_tx_process() 105 HEAD modified in ipw2100_tx() 106 107 tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring 108 TAIL modified ipw2100_tx() 109 HEAD modified by ipw2100_tx_send_data() 110 111 msg_free_list : Holds pre-allocated Msg (Command) buffers 112 TAIL modified in __ipw2100_tx_process() 113 HEAD modified in ipw2100_hw_send_command() 114 115 msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring 116 TAIL modified in ipw2100_hw_send_command() 117 HEAD modified in ipw2100_tx_send_commands() 118 119 The flow of data on the TX side is as follows: 120 121 MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST 122 TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST 123 124 The methods that work on the TBD ring are protected via priv->low_lock. 125 126- The internal data state of the device itself 127- Access to the firmware read/write indexes for the BD queues 128 and associated logic 129 130All external entry functions are locked with the priv->action_lock to ensure 131that only one external action is invoked at a time. 132 133 134*/ 135 136#include <linux/compiler.h> 137#include <linux/errno.h> 138#include <linux/if_arp.h> 139#include <linux/in6.h> 140#include <linux/in.h> 141#include <linux/ip.h> 142#include <linux/kernel.h> 143#include <linux/kmod.h> 144#include <linux/module.h> 145#include <linux/netdevice.h> 146#include <linux/ethtool.h> 147#include <linux/pci.h> 148#include <linux/dma-mapping.h> 149#include <linux/proc_fs.h> 150#include <linux/skbuff.h> 151#include <asm/uaccess.h> 152#include <asm/io.h> 153#include <linux/fs.h> 154#include <linux/mm.h> 155#include <linux/slab.h> 156#include <linux/unistd.h> 157#include <linux/stringify.h> 158#include <linux/tcp.h> 159#include <linux/types.h> 160#include <linux/time.h> 161#include <linux/firmware.h> 162#include <linux/acpi.h> 163#include <linux/ctype.h> 164#include <linux/pm_qos_params.h> 165 166#include <net/lib80211.h> 167 168#include "ipw2100.h" 169 170#define IPW2100_VERSION "git-1.2.2" 171 172#define DRV_NAME "ipw2100" 173#define DRV_VERSION IPW2100_VERSION 174#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver" 175#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" 176 177/* Debugging stuff */ 178#ifdef CONFIG_IPW2100_DEBUG 179#define IPW2100_RX_DEBUG /* Reception debugging */ 180#endif 181 182MODULE_DESCRIPTION(DRV_DESCRIPTION); 183MODULE_VERSION(DRV_VERSION); 184MODULE_AUTHOR(DRV_COPYRIGHT); 185MODULE_LICENSE("GPL"); 186 187static int debug = 0; 188static int network_mode = 0; 189static int channel = 0; 190static int associate = 0; 191static int disable = 0; 192#ifdef CONFIG_PM 193static struct ipw2100_fw ipw2100_firmware; 194#endif 195 196#include <linux/moduleparam.h> 197module_param(debug, int, 0444); 198module_param_named(mode, network_mode, int, 0444); 199module_param(channel, int, 0444); 200module_param(associate, int, 0444); 201module_param(disable, int, 0444); 202 203MODULE_PARM_DESC(debug, "debug level"); 204MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)"); 205MODULE_PARM_DESC(channel, "channel"); 206MODULE_PARM_DESC(associate, "auto associate when scanning (default off)"); 207MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); 208 209static u32 ipw2100_debug_level = IPW_DL_NONE; 210 211#ifdef CONFIG_IPW2100_DEBUG 212#define IPW_DEBUG(level, message...) \ 213do { \ 214 if (ipw2100_debug_level & (level)) { \ 215 printk(KERN_DEBUG "ipw2100: %c %s ", \ 216 in_interrupt() ? 'I' : 'U', __func__); \ 217 printk(message); \ 218 } \ 219} while (0) 220#else 221#define IPW_DEBUG(level, message...) do {} while (0) 222#endif /* CONFIG_IPW2100_DEBUG */ 223 224#ifdef CONFIG_IPW2100_DEBUG 225static const char *command_types[] = { 226 "undefined", 227 "unused", /* HOST_ATTENTION */ 228 "HOST_COMPLETE", 229 "unused", /* SLEEP */ 230 "unused", /* HOST_POWER_DOWN */ 231 "unused", 232 "SYSTEM_CONFIG", 233 "unused", /* SET_IMR */ 234 "SSID", 235 "MANDATORY_BSSID", 236 "AUTHENTICATION_TYPE", 237 "ADAPTER_ADDRESS", 238 "PORT_TYPE", 239 "INTERNATIONAL_MODE", 240 "CHANNEL", 241 "RTS_THRESHOLD", 242 "FRAG_THRESHOLD", 243 "POWER_MODE", 244 "TX_RATES", 245 "BASIC_TX_RATES", 246 "WEP_KEY_INFO", 247 "unused", 248 "unused", 249 "unused", 250 "unused", 251 "WEP_KEY_INDEX", 252 "WEP_FLAGS", 253 "ADD_MULTICAST", 254 "CLEAR_ALL_MULTICAST", 255 "BEACON_INTERVAL", 256 "ATIM_WINDOW", 257 "CLEAR_STATISTICS", 258 "undefined", 259 "undefined", 260 "undefined", 261 "undefined", 262 "TX_POWER_INDEX", 263 "undefined", 264 "undefined", 265 "undefined", 266 "undefined", 267 "undefined", 268 "undefined", 269 "BROADCAST_SCAN", 270 "CARD_DISABLE", 271 "PREFERRED_BSSID", 272 "SET_SCAN_OPTIONS", 273 "SCAN_DWELL_TIME", 274 "SWEEP_TABLE", 275 "AP_OR_STATION_TABLE", 276 "GROUP_ORDINALS", 277 "SHORT_RETRY_LIMIT", 278 "LONG_RETRY_LIMIT", 279 "unused", /* SAVE_CALIBRATION */ 280 "unused", /* RESTORE_CALIBRATION */ 281 "undefined", 282 "undefined", 283 "undefined", 284 "HOST_PRE_POWER_DOWN", 285 "unused", /* HOST_INTERRUPT_COALESCING */ 286 "undefined", 287 "CARD_DISABLE_PHY_OFF", 288 "MSDU_TX_RATES" "undefined", 289 "undefined", 290 "SET_STATION_STAT_BITS", 291 "CLEAR_STATIONS_STAT_BITS", 292 "LEAP_ROGUE_MODE", 293 "SET_SECURITY_INFORMATION", 294 "DISASSOCIATION_BSSID", 295 "SET_WPA_ASS_IE" 296}; 297#endif 298 299/* Pre-decl until we get the code solid and then we can clean it up */ 300static void ipw2100_tx_send_commands(struct ipw2100_priv *priv); 301static void ipw2100_tx_send_data(struct ipw2100_priv *priv); 302static int ipw2100_adapter_setup(struct ipw2100_priv *priv); 303 304static void ipw2100_queues_initialize(struct ipw2100_priv *priv); 305static void ipw2100_queues_free(struct ipw2100_priv *priv); 306static int ipw2100_queues_allocate(struct ipw2100_priv *priv); 307 308static int ipw2100_fw_download(struct ipw2100_priv *priv, 309 struct ipw2100_fw *fw); 310static int ipw2100_get_firmware(struct ipw2100_priv *priv, 311 struct ipw2100_fw *fw); 312static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf, 313 size_t max); 314static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf, 315 size_t max); 316static void ipw2100_release_firmware(struct ipw2100_priv *priv, 317 struct ipw2100_fw *fw); 318static int ipw2100_ucode_download(struct ipw2100_priv *priv, 319 struct ipw2100_fw *fw); 320static void ipw2100_wx_event_work(struct work_struct *work); 321static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev); 322static struct iw_handler_def ipw2100_wx_handler_def; 323 324static inline void read_register(struct net_device *dev, u32 reg, u32 * val) 325{ 326 *val = readl((void __iomem *)(dev->base_addr + reg)); 327 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val); 328} 329 330static inline void write_register(struct net_device *dev, u32 reg, u32 val) 331{ 332 writel(val, (void __iomem *)(dev->base_addr + reg)); 333 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val); 334} 335 336static inline void read_register_word(struct net_device *dev, u32 reg, 337 u16 * val) 338{ 339 *val = readw((void __iomem *)(dev->base_addr + reg)); 340 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val); 341} 342 343static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val) 344{ 345 *val = readb((void __iomem *)(dev->base_addr + reg)); 346 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val); 347} 348 349static inline void write_register_word(struct net_device *dev, u32 reg, u16 val) 350{ 351 writew(val, (void __iomem *)(dev->base_addr + reg)); 352 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val); 353} 354 355static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val) 356{ 357 writeb(val, (void __iomem *)(dev->base_addr + reg)); 358 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val); 359} 360 361static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val) 362{ 363 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 364 addr & IPW_REG_INDIRECT_ADDR_MASK); 365 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); 366} 367 368static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val) 369{ 370 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 371 addr & IPW_REG_INDIRECT_ADDR_MASK); 372 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); 373} 374 375static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val) 376{ 377 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 378 addr & IPW_REG_INDIRECT_ADDR_MASK); 379 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); 380} 381 382static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val) 383{ 384 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 385 addr & IPW_REG_INDIRECT_ADDR_MASK); 386 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); 387} 388 389static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val) 390{ 391 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 392 addr & IPW_REG_INDIRECT_ADDR_MASK); 393 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); 394} 395 396static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val) 397{ 398 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 399 addr & IPW_REG_INDIRECT_ADDR_MASK); 400 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); 401} 402 403static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr) 404{ 405 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, 406 addr & IPW_REG_INDIRECT_ADDR_MASK); 407} 408 409static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val) 410{ 411 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val); 412} 413 414static void write_nic_memory(struct net_device *dev, u32 addr, u32 len, 415 const u8 * buf) 416{ 417 u32 aligned_addr; 418 u32 aligned_len; 419 u32 dif_len; 420 u32 i; 421 422 /* read first nibble byte by byte */ 423 aligned_addr = addr & (~0x3); 424 dif_len = addr - aligned_addr; 425 if (dif_len) { 426 /* Start reading at aligned_addr + dif_len */ 427 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 428 aligned_addr); 429 for (i = dif_len; i < 4; i++, buf++) 430 write_register_byte(dev, 431 IPW_REG_INDIRECT_ACCESS_DATA + i, 432 *buf); 433 434 len -= dif_len; 435 aligned_addr += 4; 436 } 437 438 /* read DWs through autoincrement registers */ 439 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr); 440 aligned_len = len & (~0x3); 441 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4) 442 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf); 443 444 /* copy the last nibble */ 445 dif_len = len - aligned_len; 446 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr); 447 for (i = 0; i < dif_len; i++, buf++) 448 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, 449 *buf); 450} 451 452static void read_nic_memory(struct net_device *dev, u32 addr, u32 len, 453 u8 * buf) 454{ 455 u32 aligned_addr; 456 u32 aligned_len; 457 u32 dif_len; 458 u32 i; 459 460 /* read first nibble byte by byte */ 461 aligned_addr = addr & (~0x3); 462 dif_len = addr - aligned_addr; 463 if (dif_len) { 464 /* Start reading at aligned_addr + dif_len */ 465 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, 466 aligned_addr); 467 for (i = dif_len; i < 4; i++, buf++) 468 read_register_byte(dev, 469 IPW_REG_INDIRECT_ACCESS_DATA + i, 470 buf); 471 472 len -= dif_len; 473 aligned_addr += 4; 474 } 475 476 /* read DWs through autoincrement registers */ 477 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr); 478 aligned_len = len & (~0x3); 479 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4) 480 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf); 481 482 /* copy the last nibble */ 483 dif_len = len - aligned_len; 484 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr); 485 for (i = 0; i < dif_len; i++, buf++) 486 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf); 487} 488 489static inline int ipw2100_hw_is_adapter_in_system(struct net_device *dev) 490{ 491 return (dev->base_addr && 492 (readl 493 ((void __iomem *)(dev->base_addr + 494 IPW_REG_DOA_DEBUG_AREA_START)) 495 == IPW_DATA_DOA_DEBUG_VALUE)); 496} 497 498static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord, 499 void *val, u32 * len) 500{ 501 struct ipw2100_ordinals *ordinals = &priv->ordinals; 502 u32 addr; 503 u32 field_info; 504 u16 field_len; 505 u16 field_count; 506 u32 total_length; 507 508 if (ordinals->table1_addr == 0) { 509 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals " 510 "before they have been loaded.\n"); 511 return -EINVAL; 512 } 513 514 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) { 515 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) { 516 *len = IPW_ORD_TAB_1_ENTRY_SIZE; 517 518 printk(KERN_WARNING DRV_NAME 519 ": ordinal buffer length too small, need %zd\n", 520 IPW_ORD_TAB_1_ENTRY_SIZE); 521 522 return -EINVAL; 523 } 524 525 read_nic_dword(priv->net_dev, 526 ordinals->table1_addr + (ord << 2), &addr); 527 read_nic_dword(priv->net_dev, addr, val); 528 529 *len = IPW_ORD_TAB_1_ENTRY_SIZE; 530 531 return 0; 532 } 533 534 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) { 535 536 ord -= IPW_START_ORD_TAB_2; 537 538 /* get the address of statistic */ 539 read_nic_dword(priv->net_dev, 540 ordinals->table2_addr + (ord << 3), &addr); 541 542 /* get the second DW of statistics ; 543 * two 16-bit words - first is length, second is count */ 544 read_nic_dword(priv->net_dev, 545 ordinals->table2_addr + (ord << 3) + sizeof(u32), 546 &field_info); 547 548 /* get each entry length */ 549 field_len = *((u16 *) & field_info); 550 551 /* get number of entries */ 552 field_count = *(((u16 *) & field_info) + 1); 553 554 /* abort if no enought memory */ 555 total_length = field_len * field_count; 556 if (total_length > *len) { 557 *len = total_length; 558 return -EINVAL; 559 } 560 561 *len = total_length; 562 if (!total_length) 563 return 0; 564 565 /* read the ordinal data from the SRAM */ 566 read_nic_memory(priv->net_dev, addr, total_length, val); 567 568 return 0; 569 } 570 571 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor " 572 "in table 2\n", ord); 573 574 return -EINVAL; 575} 576 577static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val, 578 u32 * len) 579{ 580 struct ipw2100_ordinals *ordinals = &priv->ordinals; 581 u32 addr; 582 583 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) { 584 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) { 585 *len = IPW_ORD_TAB_1_ENTRY_SIZE; 586 IPW_DEBUG_INFO("wrong size\n"); 587 return -EINVAL; 588 } 589 590 read_nic_dword(priv->net_dev, 591 ordinals->table1_addr + (ord << 2), &addr); 592 593 write_nic_dword(priv->net_dev, addr, *val); 594 595 *len = IPW_ORD_TAB_1_ENTRY_SIZE; 596 597 return 0; 598 } 599 600 IPW_DEBUG_INFO("wrong table\n"); 601 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) 602 return -EINVAL; 603 604 return -EINVAL; 605} 606 607static char *snprint_line(char *buf, size_t count, 608 const u8 * data, u32 len, u32 ofs) 609{ 610 int out, i, j, l; 611 char c; 612 613 out = snprintf(buf, count, "%08X", ofs); 614 615 for (l = 0, i = 0; i < 2; i++) { 616 out += snprintf(buf + out, count - out, " "); 617 for (j = 0; j < 8 && l < len; j++, l++) 618 out += snprintf(buf + out, count - out, "%02X ", 619 data[(i * 8 + j)]); 620 for (; j < 8; j++) 621 out += snprintf(buf + out, count - out, " "); 622 } 623 624 out += snprintf(buf + out, count - out, " "); 625 for (l = 0, i = 0; i < 2; i++) { 626 out += snprintf(buf + out, count - out, " "); 627 for (j = 0; j < 8 && l < len; j++, l++) { 628 c = data[(i * 8 + j)]; 629 if (!isascii(c) || !isprint(c)) 630 c = '.'; 631 632 out += snprintf(buf + out, count - out, "%c", c); 633 } 634 635 for (; j < 8; j++) 636 out += snprintf(buf + out, count - out, " "); 637 } 638 639 return buf; 640} 641 642static void printk_buf(int level, const u8 * data, u32 len) 643{ 644 char line[81]; 645 u32 ofs = 0; 646 if (!(ipw2100_debug_level & level)) 647 return; 648 649 while (len) { 650 printk(KERN_DEBUG "%s\n", 651 snprint_line(line, sizeof(line), &data[ofs], 652 min(len, 16U), ofs)); 653 ofs += 16; 654 len -= min(len, 16U); 655 } 656} 657 658#define MAX_RESET_BACKOFF 10 659 660static void schedule_reset(struct ipw2100_priv *priv) 661{ 662 unsigned long now = get_seconds(); 663 664 /* If we haven't received a reset request within the backoff period, 665 * then we can reset the backoff interval so this reset occurs 666 * immediately */ 667 if (priv->reset_backoff && 668 (now - priv->last_reset > priv->reset_backoff)) 669 priv->reset_backoff = 0; 670 671 priv->last_reset = get_seconds(); 672 673 if (!(priv->status & STATUS_RESET_PENDING)) { 674 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%ds).\n", 675 priv->net_dev->name, priv->reset_backoff); 676 netif_carrier_off(priv->net_dev); 677 netif_stop_queue(priv->net_dev); 678 priv->status |= STATUS_RESET_PENDING; 679 if (priv->reset_backoff) 680 queue_delayed_work(priv->workqueue, &priv->reset_work, 681 priv->reset_backoff * HZ); 682 else 683 queue_delayed_work(priv->workqueue, &priv->reset_work, 684 0); 685 686 if (priv->reset_backoff < MAX_RESET_BACKOFF) 687 priv->reset_backoff++; 688 689 wake_up_interruptible(&priv->wait_command_queue); 690 } else 691 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n", 692 priv->net_dev->name); 693 694} 695 696#define HOST_COMPLETE_TIMEOUT (2 * HZ) 697static int ipw2100_hw_send_command(struct ipw2100_priv *priv, 698 struct host_command *cmd) 699{ 700 struct list_head *element; 701 struct ipw2100_tx_packet *packet; 702 unsigned long flags; 703 int err = 0; 704 705 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n", 706 command_types[cmd->host_command], cmd->host_command, 707 cmd->host_command_length); 708 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters, 709 cmd->host_command_length); 710 711 spin_lock_irqsave(&priv->low_lock, flags); 712 713 if (priv->fatal_error) { 714 IPW_DEBUG_INFO 715 ("Attempt to send command while hardware in fatal error condition.\n"); 716 err = -EIO; 717 goto fail_unlock; 718 } 719 720 if (!(priv->status & STATUS_RUNNING)) { 721 IPW_DEBUG_INFO 722 ("Attempt to send command while hardware is not running.\n"); 723 err = -EIO; 724 goto fail_unlock; 725 } 726 727 if (priv->status & STATUS_CMD_ACTIVE) { 728 IPW_DEBUG_INFO 729 ("Attempt to send command while another command is pending.\n"); 730 err = -EBUSY; 731 goto fail_unlock; 732 } 733 734 if (list_empty(&priv->msg_free_list)) { 735 IPW_DEBUG_INFO("no available msg buffers\n"); 736 goto fail_unlock; 737 } 738 739 priv->status |= STATUS_CMD_ACTIVE; 740 priv->messages_sent++; 741 742 element = priv->msg_free_list.next; 743 744 packet = list_entry(element, struct ipw2100_tx_packet, list); 745 packet->jiffy_start = jiffies; 746 747 /* initialize the firmware command packet */ 748 packet->info.c_struct.cmd->host_command_reg = cmd->host_command; 749 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1; 750 packet->info.c_struct.cmd->host_command_len_reg = 751 cmd->host_command_length; 752 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence; 753 754 memcpy(packet->info.c_struct.cmd->host_command_params_reg, 755 cmd->host_command_parameters, 756 sizeof(packet->info.c_struct.cmd->host_command_params_reg)); 757 758 list_del(element); 759 DEC_STAT(&priv->msg_free_stat); 760 761 list_add_tail(element, &priv->msg_pend_list); 762 INC_STAT(&priv->msg_pend_stat); 763 764 ipw2100_tx_send_commands(priv); 765 ipw2100_tx_send_data(priv); 766 767 spin_unlock_irqrestore(&priv->low_lock, flags); 768 769 /* 770 * We must wait for this command to complete before another 771 * command can be sent... but if we wait more than 3 seconds 772 * then there is a problem. 773 */ 774 775 err = 776 wait_event_interruptible_timeout(priv->wait_command_queue, 777 !(priv-> 778 status & STATUS_CMD_ACTIVE), 779 HOST_COMPLETE_TIMEOUT); 780 781 if (err == 0) { 782 IPW_DEBUG_INFO("Command completion failed out after %dms.\n", 783 1000 * (HOST_COMPLETE_TIMEOUT / HZ)); 784 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT; 785 priv->status &= ~STATUS_CMD_ACTIVE; 786 schedule_reset(priv); 787 return -EIO; 788 } 789 790 if (priv->fatal_error) { 791 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n", 792 priv->net_dev->name); 793 return -EIO; 794 } 795 796 /* !!!!! HACK TEST !!!!! 797 * When lots of debug trace statements are enabled, the driver 798 * doesn't seem to have as many firmware restart cycles... 799 * 800 * As a test, we're sticking in a 1/100s delay here */ 801 schedule_timeout_uninterruptible(msecs_to_jiffies(10)); 802 803 return 0; 804 805 fail_unlock: 806 spin_unlock_irqrestore(&priv->low_lock, flags); 807 808 return err; 809} 810 811/* 812 * Verify the values and data access of the hardware 813 * No locks needed or used. No functions called. 814 */ 815static int ipw2100_verify(struct ipw2100_priv *priv) 816{ 817 u32 data1, data2; 818 u32 address; 819 820 u32 val1 = 0x76543210; 821 u32 val2 = 0xFEDCBA98; 822 823 /* Domain 0 check - all values should be DOA_DEBUG */ 824 for (address = IPW_REG_DOA_DEBUG_AREA_START; 825 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) { 826 read_register(priv->net_dev, address, &data1); 827 if (data1 != IPW_DATA_DOA_DEBUG_VALUE) 828 return -EIO; 829 } 830 831 /* Domain 1 check - use arbitrary read/write compare */ 832 for (address = 0; address < 5; address++) { 833 /* The memory area is not used now */ 834 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32, 835 val1); 836 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36, 837 val2); 838 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32, 839 &data1); 840 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36, 841 &data2); 842 if (val1 == data1 && val2 == data2) 843 return 0; 844 } 845 846 return -EIO; 847} 848 849/* 850 * 851 * Loop until the CARD_DISABLED bit is the same value as the 852 * supplied parameter 853 * 854 * TODO: See if it would be more efficient to do a wait/wake 855 * cycle and have the completion event trigger the wakeup 856 * 857 */ 858#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli 859static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state) 860{ 861 int i; 862 u32 card_state; 863 u32 len = sizeof(card_state); 864 int err; 865 866 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) { 867 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED, 868 &card_state, &len); 869 if (err) { 870 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal " 871 "failed.\n"); 872 return 0; 873 } 874 875 /* We'll break out if either the HW state says it is 876 * in the state we want, or if HOST_COMPLETE command 877 * finishes */ 878 if ((card_state == state) || 879 ((priv->status & STATUS_ENABLED) ? 880 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) { 881 if (state == IPW_HW_STATE_ENABLED) 882 priv->status |= STATUS_ENABLED; 883 else 884 priv->status &= ~STATUS_ENABLED; 885 886 return 0; 887 } 888 889 udelay(50); 890 } 891 892 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n", 893 state ? "DISABLED" : "ENABLED"); 894 return -EIO; 895} 896 897/********************************************************************* 898 Procedure : sw_reset_and_clock 899 Purpose : Asserts s/w reset, asserts clock initialization 900 and waits for clock stabilization 901 ********************************************************************/ 902static int sw_reset_and_clock(struct ipw2100_priv *priv) 903{ 904 int i; 905 u32 r; 906 907 // assert s/w reset 908 write_register(priv->net_dev, IPW_REG_RESET_REG, 909 IPW_AUX_HOST_RESET_REG_SW_RESET); 910 911 // wait for clock stabilization 912 for (i = 0; i < 1000; i++) { 913 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY); 914 915 // check clock ready bit 916 read_register(priv->net_dev, IPW_REG_RESET_REG, &r); 917 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET) 918 break; 919 } 920 921 if (i == 1000) 922 return -EIO; // TODO: better error value 923 924 /* set "initialization complete" bit to move adapter to 925 * D0 state */ 926 write_register(priv->net_dev, IPW_REG_GP_CNTRL, 927 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE); 928 929 /* wait for clock stabilization */ 930 for (i = 0; i < 10000; i++) { 931 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4); 932 933 /* check clock ready bit */ 934 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r); 935 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY) 936 break; 937 } 938 939 if (i == 10000) 940 return -EIO; /* TODO: better error value */ 941 942 /* set D0 standby bit */ 943 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r); 944 write_register(priv->net_dev, IPW_REG_GP_CNTRL, 945 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY); 946 947 return 0; 948} 949 950/********************************************************************* 951 Procedure : ipw2100_download_firmware 952 Purpose : Initiaze adapter after power on. 953 The sequence is: 954 1. assert s/w reset first! 955 2. awake clocks & wait for clock stabilization 956 3. hold ARC (don't ask me why...) 957 4. load Dino ucode and reset/clock init again 958 5. zero-out shared mem 959 6. download f/w 960 *******************************************************************/ 961static int ipw2100_download_firmware(struct ipw2100_priv *priv) 962{ 963 u32 address; 964 int err; 965 966#ifndef CONFIG_PM 967 /* Fetch the firmware and microcode */ 968 struct ipw2100_fw ipw2100_firmware; 969#endif 970 971 if (priv->fatal_error) { 972 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after " 973 "fatal error %d. Interface must be brought down.\n", 974 priv->net_dev->name, priv->fatal_error); 975 return -EINVAL; 976 } 977#ifdef CONFIG_PM 978 if (!ipw2100_firmware.version) { 979 err = ipw2100_get_firmware(priv, &ipw2100_firmware); 980 if (err) { 981 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n", 982 priv->net_dev->name, err); 983 priv->fatal_error = IPW2100_ERR_FW_LOAD; 984 goto fail; 985 } 986 } 987#else 988 err = ipw2100_get_firmware(priv, &ipw2100_firmware); 989 if (err) { 990 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n", 991 priv->net_dev->name, err); 992 priv->fatal_error = IPW2100_ERR_FW_LOAD; 993 goto fail; 994 } 995#endif 996 priv->firmware_version = ipw2100_firmware.version; 997 998 /* s/w reset and clock stabilization */ 999 err = sw_reset_and_clock(priv); 1000 if (err) { 1001 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n", 1002 priv->net_dev->name, err); 1003 goto fail; 1004 } 1005 1006 err = ipw2100_verify(priv); 1007 if (err) { 1008 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n", 1009 priv->net_dev->name, err); 1010 goto fail; 1011 } 1012 1013 /* Hold ARC */ 1014 write_nic_dword(priv->net_dev, 1015 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000); 1016 1017 /* allow ARC to run */ 1018 write_register(priv->net_dev, IPW_REG_RESET_REG, 0); 1019 1020 /* load microcode */ 1021 err = ipw2100_ucode_download(priv, &ipw2100_firmware); 1022 if (err) { 1023 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n", 1024 priv->net_dev->name, err); 1025 goto fail; 1026 } 1027 1028 /* release ARC */ 1029 write_nic_dword(priv->net_dev, 1030 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000); 1031 1032 /* s/w reset and clock stabilization (again!!!) */ 1033 err = sw_reset_and_clock(priv); 1034 if (err) { 1035 printk(KERN_ERR DRV_NAME 1036 ": %s: sw_reset_and_clock failed: %d\n", 1037 priv->net_dev->name, err); 1038 goto fail; 1039 } 1040 1041 /* load f/w */ 1042 err = ipw2100_fw_download(priv, &ipw2100_firmware); 1043 if (err) { 1044 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n", 1045 priv->net_dev->name, err); 1046 goto fail; 1047 } 1048#ifndef CONFIG_PM 1049 /* 1050 * When the .resume method of the driver is called, the other 1051 * part of the system, i.e. the ide driver could still stay in 1052 * the suspend stage. This prevents us from loading the firmware 1053 * from the disk. --YZ 1054 */ 1055 1056 /* free any storage allocated for firmware image */ 1057 ipw2100_release_firmware(priv, &ipw2100_firmware); 1058#endif 1059 1060 /* zero out Domain 1 area indirectly (Si requirement) */ 1061 for (address = IPW_HOST_FW_SHARED_AREA0; 1062 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4) 1063 write_nic_dword(priv->net_dev, address, 0); 1064 for (address = IPW_HOST_FW_SHARED_AREA1; 1065 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4) 1066 write_nic_dword(priv->net_dev, address, 0); 1067 for (address = IPW_HOST_FW_SHARED_AREA2; 1068 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4) 1069 write_nic_dword(priv->net_dev, address, 0); 1070 for (address = IPW_HOST_FW_SHARED_AREA3; 1071 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4) 1072 write_nic_dword(priv->net_dev, address, 0); 1073 for (address = IPW_HOST_FW_INTERRUPT_AREA; 1074 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4) 1075 write_nic_dword(priv->net_dev, address, 0); 1076 1077 return 0; 1078 1079 fail: 1080 ipw2100_release_firmware(priv, &ipw2100_firmware); 1081 return err; 1082} 1083 1084static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv) 1085{ 1086 if (priv->status & STATUS_INT_ENABLED) 1087 return; 1088 priv->status |= STATUS_INT_ENABLED; 1089 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK); 1090} 1091 1092static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv) 1093{ 1094 if (!(priv->status & STATUS_INT_ENABLED)) 1095 return; 1096 priv->status &= ~STATUS_INT_ENABLED; 1097 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0); 1098} 1099 1100static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv) 1101{ 1102 struct ipw2100_ordinals *ord = &priv->ordinals; 1103 1104 IPW_DEBUG_INFO("enter\n"); 1105 1106 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1, 1107 &ord->table1_addr); 1108 1109 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2, 1110 &ord->table2_addr); 1111 1112 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size); 1113 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size); 1114 1115 ord->table2_size &= 0x0000FFFF; 1116 1117 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size); 1118 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size); 1119 IPW_DEBUG_INFO("exit\n"); 1120} 1121 1122static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv) 1123{ 1124 u32 reg = 0; 1125 /* 1126 * Set GPIO 3 writable by FW; GPIO 1 writable 1127 * by driver and enable clock 1128 */ 1129 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE | 1130 IPW_BIT_GPIO_LED_OFF); 1131 write_register(priv->net_dev, IPW_REG_GPIO, reg); 1132} 1133 1134static int rf_kill_active(struct ipw2100_priv *priv) 1135{ 1136#define MAX_RF_KILL_CHECKS 5 1137#define RF_KILL_CHECK_DELAY 40 1138 1139 unsigned short value = 0; 1140 u32 reg = 0; 1141 int i; 1142 1143 if (!(priv->hw_features & HW_FEATURE_RFKILL)) { 1144 priv->status &= ~STATUS_RF_KILL_HW; 1145 return 0; 1146 } 1147 1148 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) { 1149 udelay(RF_KILL_CHECK_DELAY); 1150 read_register(priv->net_dev, IPW_REG_GPIO, ®); 1151 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1); 1152 } 1153 1154 if (value == 0) 1155 priv->status |= STATUS_RF_KILL_HW; 1156 else 1157 priv->status &= ~STATUS_RF_KILL_HW; 1158 1159 return (value == 0); 1160} 1161 1162static int ipw2100_get_hw_features(struct ipw2100_priv *priv) 1163{ 1164 u32 addr, len; 1165 u32 val; 1166 1167 /* 1168 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1 1169 */ 1170 len = sizeof(addr); 1171 if (ipw2100_get_ordinal 1172 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) { 1173 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 1174 __LINE__); 1175 return -EIO; 1176 } 1177 1178 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr); 1179 1180 /* 1181 * EEPROM version is the byte at offset 0xfd in firmware 1182 * We read 4 bytes, then shift out the byte we actually want */ 1183 read_nic_dword(priv->net_dev, addr + 0xFC, &val); 1184 priv->eeprom_version = (val >> 24) & 0xFF; 1185 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version); 1186 1187 /* 1188 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware 1189 * 1190 * notice that the EEPROM bit is reverse polarity, i.e. 1191 * bit = 0 signifies HW RF kill switch is supported 1192 * bit = 1 signifies HW RF kill switch is NOT supported 1193 */ 1194 read_nic_dword(priv->net_dev, addr + 0x20, &val); 1195 if (!((val >> 24) & 0x01)) 1196 priv->hw_features |= HW_FEATURE_RFKILL; 1197 1198 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n", 1199 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not "); 1200 1201 return 0; 1202} 1203 1204/* 1205 * Start firmware execution after power on and intialization 1206 * The sequence is: 1207 * 1. Release ARC 1208 * 2. Wait for f/w initialization completes; 1209 */ 1210static int ipw2100_start_adapter(struct ipw2100_priv *priv) 1211{ 1212 int i; 1213 u32 inta, inta_mask, gpio; 1214 1215 IPW_DEBUG_INFO("enter\n"); 1216 1217 if (priv->status & STATUS_RUNNING) 1218 return 0; 1219 1220 /* 1221 * Initialize the hw - drive adapter to DO state by setting 1222 * init_done bit. Wait for clk_ready bit and Download 1223 * fw & dino ucode 1224 */ 1225 if (ipw2100_download_firmware(priv)) { 1226 printk(KERN_ERR DRV_NAME 1227 ": %s: Failed to power on the adapter.\n", 1228 priv->net_dev->name); 1229 return -EIO; 1230 } 1231 1232 /* Clear the Tx, Rx and Msg queues and the r/w indexes 1233 * in the firmware RBD and TBD ring queue */ 1234 ipw2100_queues_initialize(priv); 1235 1236 ipw2100_hw_set_gpio(priv); 1237 1238 /* TODO -- Look at disabling interrupts here to make sure none 1239 * get fired during FW initialization */ 1240 1241 /* Release ARC - clear reset bit */ 1242 write_register(priv->net_dev, IPW_REG_RESET_REG, 0); 1243 1244 /* wait for f/w intialization complete */ 1245 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n"); 1246 i = 5000; 1247 do { 1248 schedule_timeout_uninterruptible(msecs_to_jiffies(40)); 1249 /* Todo... wait for sync command ... */ 1250 1251 read_register(priv->net_dev, IPW_REG_INTA, &inta); 1252 1253 /* check "init done" bit */ 1254 if (inta & IPW2100_INTA_FW_INIT_DONE) { 1255 /* reset "init done" bit */ 1256 write_register(priv->net_dev, IPW_REG_INTA, 1257 IPW2100_INTA_FW_INIT_DONE); 1258 break; 1259 } 1260 1261 /* check error conditions : we check these after the firmware 1262 * check so that if there is an error, the interrupt handler 1263 * will see it and the adapter will be reset */ 1264 if (inta & 1265 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) { 1266 /* clear error conditions */ 1267 write_register(priv->net_dev, IPW_REG_INTA, 1268 IPW2100_INTA_FATAL_ERROR | 1269 IPW2100_INTA_PARITY_ERROR); 1270 } 1271 } while (--i); 1272 1273 /* Clear out any pending INTAs since we aren't supposed to have 1274 * interrupts enabled at this point... */ 1275 read_register(priv->net_dev, IPW_REG_INTA, &inta); 1276 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask); 1277 inta &= IPW_INTERRUPT_MASK; 1278 /* Clear out any pending interrupts */ 1279 if (inta & inta_mask) 1280 write_register(priv->net_dev, IPW_REG_INTA, inta); 1281 1282 IPW_DEBUG_FW("f/w initialization complete: %s\n", 1283 i ? "SUCCESS" : "FAILED"); 1284 1285 if (!i) { 1286 printk(KERN_WARNING DRV_NAME 1287 ": %s: Firmware did not initialize.\n", 1288 priv->net_dev->name); 1289 return -EIO; 1290 } 1291 1292 /* allow firmware to write to GPIO1 & GPIO3 */ 1293 read_register(priv->net_dev, IPW_REG_GPIO, &gpio); 1294 1295 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK); 1296 1297 write_register(priv->net_dev, IPW_REG_GPIO, gpio); 1298 1299 /* Ready to receive commands */ 1300 priv->status |= STATUS_RUNNING; 1301 1302 /* The adapter has been reset; we are not associated */ 1303 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED); 1304 1305 IPW_DEBUG_INFO("exit\n"); 1306 1307 return 0; 1308} 1309 1310static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv) 1311{ 1312 if (!priv->fatal_error) 1313 return; 1314 1315 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error; 1316 priv->fatal_index %= IPW2100_ERROR_QUEUE; 1317 priv->fatal_error = 0; 1318} 1319 1320/* NOTE: Our interrupt is disabled when this method is called */ 1321static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv) 1322{ 1323 u32 reg; 1324 int i; 1325 1326 IPW_DEBUG_INFO("Power cycling the hardware.\n"); 1327 1328 ipw2100_hw_set_gpio(priv); 1329 1330 /* Step 1. Stop Master Assert */ 1331 write_register(priv->net_dev, IPW_REG_RESET_REG, 1332 IPW_AUX_HOST_RESET_REG_STOP_MASTER); 1333 1334 /* Step 2. Wait for stop Master Assert 1335 * (not more than 50us, otherwise ret error */ 1336 i = 5; 1337 do { 1338 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY); 1339 read_register(priv->net_dev, IPW_REG_RESET_REG, ®); 1340 1341 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED) 1342 break; 1343 } while (--i); 1344 1345 priv->status &= ~STATUS_RESET_PENDING; 1346 1347 if (!i) { 1348 IPW_DEBUG_INFO 1349 ("exit - waited too long for master assert stop\n"); 1350 return -EIO; 1351 } 1352 1353 write_register(priv->net_dev, IPW_REG_RESET_REG, 1354 IPW_AUX_HOST_RESET_REG_SW_RESET); 1355 1356 /* Reset any fatal_error conditions */ 1357 ipw2100_reset_fatalerror(priv); 1358 1359 /* At this point, the adapter is now stopped and disabled */ 1360 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING | 1361 STATUS_ASSOCIATED | STATUS_ENABLED); 1362 1363 return 0; 1364} 1365 1366/* 1367 * Send the CARD_DISABLE_PHY_OFF comamnd to the card to disable it 1368 * 1369 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent. 1370 * 1371 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of 1372 * if STATUS_ASSN_LOST is sent. 1373 */ 1374static int ipw2100_hw_phy_off(struct ipw2100_priv *priv) 1375{ 1376 1377#define HW_PHY_OFF_LOOP_DELAY (HZ / 5000) 1378 1379 struct host_command cmd = { 1380 .host_command = CARD_DISABLE_PHY_OFF, 1381 .host_command_sequence = 0, 1382 .host_command_length = 0, 1383 }; 1384 int err, i; 1385 u32 val1, val2; 1386 1387 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n"); 1388 1389 /* Turn off the radio */ 1390 err = ipw2100_hw_send_command(priv, &cmd); 1391 if (err) 1392 return err; 1393 1394 for (i = 0; i < 2500; i++) { 1395 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1); 1396 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2); 1397 1398 if ((val1 & IPW2100_CONTROL_PHY_OFF) && 1399 (val2 & IPW2100_COMMAND_PHY_OFF)) 1400 return 0; 1401 1402 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY); 1403 } 1404 1405 return -EIO; 1406} 1407 1408static int ipw2100_enable_adapter(struct ipw2100_priv *priv) 1409{ 1410 struct host_command cmd = { 1411 .host_command = HOST_COMPLETE, 1412 .host_command_sequence = 0, 1413 .host_command_length = 0 1414 }; 1415 int err = 0; 1416 1417 IPW_DEBUG_HC("HOST_COMPLETE\n"); 1418 1419 if (priv->status & STATUS_ENABLED) 1420 return 0; 1421 1422 mutex_lock(&priv->adapter_mutex); 1423 1424 if (rf_kill_active(priv)) { 1425 IPW_DEBUG_HC("Command aborted due to RF kill active.\n"); 1426 goto fail_up; 1427 } 1428 1429 err = ipw2100_hw_send_command(priv, &cmd); 1430 if (err) { 1431 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n"); 1432 goto fail_up; 1433 } 1434 1435 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED); 1436 if (err) { 1437 IPW_DEBUG_INFO("%s: card not responding to init command.\n", 1438 priv->net_dev->name); 1439 goto fail_up; 1440 } 1441 1442 if (priv->stop_hang_check) { 1443 priv->stop_hang_check = 0; 1444 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2); 1445 } 1446 1447 fail_up: 1448 mutex_unlock(&priv->adapter_mutex); 1449 return err; 1450} 1451 1452static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv) 1453{ 1454#define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100)) 1455 1456 struct host_command cmd = { 1457 .host_command = HOST_PRE_POWER_DOWN, 1458 .host_command_sequence = 0, 1459 .host_command_length = 0, 1460 }; 1461 int err, i; 1462 u32 reg; 1463 1464 if (!(priv->status & STATUS_RUNNING)) 1465 return 0; 1466 1467 priv->status |= STATUS_STOPPING; 1468 1469 /* We can only shut down the card if the firmware is operational. So, 1470 * if we haven't reset since a fatal_error, then we can not send the 1471 * shutdown commands. */ 1472 if (!priv->fatal_error) { 1473 /* First, make sure the adapter is enabled so that the PHY_OFF 1474 * command can shut it down */ 1475 ipw2100_enable_adapter(priv); 1476 1477 err = ipw2100_hw_phy_off(priv); 1478 if (err) 1479 printk(KERN_WARNING DRV_NAME 1480 ": Error disabling radio %d\n", err); 1481 1482 /* 1483 * If in D0-standby mode going directly to D3 may cause a 1484 * PCI bus violation. Therefore we must change out of the D0 1485 * state. 1486 * 1487 * Sending the PREPARE_FOR_POWER_DOWN will restrict the 1488 * hardware from going into standby mode and will transition 1489 * out of D0-standby if it is already in that state. 1490 * 1491 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the 1492 * driver upon completion. Once received, the driver can 1493 * proceed to the D3 state. 1494 * 1495 * Prepare for power down command to fw. This command would 1496 * take HW out of D0-standby and prepare it for D3 state. 1497 * 1498 * Currently FW does not support event notification for this 1499 * event. Therefore, skip waiting for it. Just wait a fixed 1500 * 100ms 1501 */ 1502 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n"); 1503 1504 err = ipw2100_hw_send_command(priv, &cmd); 1505 if (err) 1506 printk(KERN_WARNING DRV_NAME ": " 1507 "%s: Power down command failed: Error %d\n", 1508 priv->net_dev->name, err); 1509 else 1510 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY); 1511 } 1512 1513 priv->status &= ~STATUS_ENABLED; 1514 1515 /* 1516 * Set GPIO 3 writable by FW; GPIO 1 writable 1517 * by driver and enable clock 1518 */ 1519 ipw2100_hw_set_gpio(priv); 1520 1521 /* 1522 * Power down adapter. Sequence: 1523 * 1. Stop master assert (RESET_REG[9]=1) 1524 * 2. Wait for stop master (RESET_REG[8]==1) 1525 * 3. S/w reset assert (RESET_REG[7] = 1) 1526 */ 1527 1528 /* Stop master assert */ 1529 write_register(priv->net_dev, IPW_REG_RESET_REG, 1530 IPW_AUX_HOST_RESET_REG_STOP_MASTER); 1531 1532 /* wait stop master not more than 50 usec. 1533 * Otherwise return error. */ 1534 for (i = 5; i > 0; i--) { 1535 udelay(10); 1536 1537 /* Check master stop bit */ 1538 read_register(priv->net_dev, IPW_REG_RESET_REG, ®); 1539 1540 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED) 1541 break; 1542 } 1543 1544 if (i == 0) 1545 printk(KERN_WARNING DRV_NAME 1546 ": %s: Could now power down adapter.\n", 1547 priv->net_dev->name); 1548 1549 /* assert s/w reset */ 1550 write_register(priv->net_dev, IPW_REG_RESET_REG, 1551 IPW_AUX_HOST_RESET_REG_SW_RESET); 1552 1553 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING); 1554 1555 return 0; 1556} 1557 1558static int ipw2100_disable_adapter(struct ipw2100_priv *priv) 1559{ 1560 struct host_command cmd = { 1561 .host_command = CARD_DISABLE, 1562 .host_command_sequence = 0, 1563 .host_command_length = 0 1564 }; 1565 int err = 0; 1566 1567 IPW_DEBUG_HC("CARD_DISABLE\n"); 1568 1569 if (!(priv->status & STATUS_ENABLED)) 1570 return 0; 1571 1572 /* Make sure we clear the associated state */ 1573 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); 1574 1575 if (!priv->stop_hang_check) { 1576 priv->stop_hang_check = 1; 1577 cancel_delayed_work(&priv->hang_check); 1578 } 1579 1580 mutex_lock(&priv->adapter_mutex); 1581 1582 err = ipw2100_hw_send_command(priv, &cmd); 1583 if (err) { 1584 printk(KERN_WARNING DRV_NAME 1585 ": exit - failed to send CARD_DISABLE command\n"); 1586 goto fail_up; 1587 } 1588 1589 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED); 1590 if (err) { 1591 printk(KERN_WARNING DRV_NAME 1592 ": exit - card failed to change to DISABLED\n"); 1593 goto fail_up; 1594 } 1595 1596 IPW_DEBUG_INFO("TODO: implement scan state machine\n"); 1597 1598 fail_up: 1599 mutex_unlock(&priv->adapter_mutex); 1600 return err; 1601} 1602 1603static int ipw2100_set_scan_options(struct ipw2100_priv *priv) 1604{ 1605 struct host_command cmd = { 1606 .host_command = SET_SCAN_OPTIONS, 1607 .host_command_sequence = 0, 1608 .host_command_length = 8 1609 }; 1610 int err; 1611 1612 IPW_DEBUG_INFO("enter\n"); 1613 1614 IPW_DEBUG_SCAN("setting scan options\n"); 1615 1616 cmd.host_command_parameters[0] = 0; 1617 1618 if (!(priv->config & CFG_ASSOCIATE)) 1619 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE; 1620 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled) 1621 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL; 1622 if (priv->config & CFG_PASSIVE_SCAN) 1623 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE; 1624 1625 cmd.host_command_parameters[1] = priv->channel_mask; 1626 1627 err = ipw2100_hw_send_command(priv, &cmd); 1628 1629 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n", 1630 cmd.host_command_parameters[0]); 1631 1632 return err; 1633} 1634 1635static int ipw2100_start_scan(struct ipw2100_priv *priv) 1636{ 1637 struct host_command cmd = { 1638 .host_command = BROADCAST_SCAN, 1639 .host_command_sequence = 0, 1640 .host_command_length = 4 1641 }; 1642 int err; 1643 1644 IPW_DEBUG_HC("START_SCAN\n"); 1645 1646 cmd.host_command_parameters[0] = 0; 1647 1648 /* No scanning if in monitor mode */ 1649 if (priv->ieee->iw_mode == IW_MODE_MONITOR) 1650 return 1; 1651 1652 if (priv->status & STATUS_SCANNING) { 1653 IPW_DEBUG_SCAN("Scan requested while already in scan...\n"); 1654 return 0; 1655 } 1656 1657 IPW_DEBUG_INFO("enter\n"); 1658 1659 /* Not clearing here; doing so makes iwlist always return nothing... 1660 * 1661 * We should modify the table logic to use aging tables vs. clearing 1662 * the table on each scan start. 1663 */ 1664 IPW_DEBUG_SCAN("starting scan\n"); 1665 1666 priv->status |= STATUS_SCANNING; 1667 err = ipw2100_hw_send_command(priv, &cmd); 1668 if (err) 1669 priv->status &= ~STATUS_SCANNING; 1670 1671 IPW_DEBUG_INFO("exit\n"); 1672 1673 return err; 1674} 1675 1676static const struct libipw_geo ipw_geos[] = { 1677 { /* Restricted */ 1678 "---", 1679 .bg_channels = 14, 1680 .bg = {{2412, 1}, {2417, 2}, {2422, 3}, 1681 {2427, 4}, {2432, 5}, {2437, 6}, 1682 {2442, 7}, {2447, 8}, {2452, 9}, 1683 {2457, 10}, {2462, 11}, {2467, 12}, 1684 {2472, 13}, {2484, 14}}, 1685 }, 1686}; 1687 1688static int ipw2100_up(struct ipw2100_priv *priv, int deferred) 1689{ 1690 unsigned long flags; 1691 int rc = 0; 1692 u32 lock; 1693 u32 ord_len = sizeof(lock); 1694 1695 /* Age scan list entries found before suspend */ 1696 if (priv->suspend_time) { 1697 libipw_networks_age(priv->ieee, priv->suspend_time); 1698 priv->suspend_time = 0; 1699 } 1700 1701 /* Quiet if manually disabled. */ 1702 if (priv->status & STATUS_RF_KILL_SW) { 1703 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable " 1704 "switch\n", priv->net_dev->name); 1705 return 0; 1706 } 1707 1708 /* the ipw2100 hardware really doesn't want power management delays 1709 * longer than 175usec 1710 */ 1711 pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", 175); 1712 1713 /* If the interrupt is enabled, turn it off... */ 1714 spin_lock_irqsave(&priv->low_lock, flags); 1715 ipw2100_disable_interrupts(priv); 1716 1717 /* Reset any fatal_error conditions */ 1718 ipw2100_reset_fatalerror(priv); 1719 spin_unlock_irqrestore(&priv->low_lock, flags); 1720 1721 if (priv->status & STATUS_POWERED || 1722 (priv->status & STATUS_RESET_PENDING)) { 1723 /* Power cycle the card ... */ 1724 if (ipw2100_power_cycle_adapter(priv)) { 1725 printk(KERN_WARNING DRV_NAME 1726 ": %s: Could not cycle adapter.\n", 1727 priv->net_dev->name); 1728 rc = 1; 1729 goto exit; 1730 } 1731 } else 1732 priv->status |= STATUS_POWERED; 1733 1734 /* Load the firmware, start the clocks, etc. */ 1735 if (ipw2100_start_adapter(priv)) { 1736 printk(KERN_ERR DRV_NAME 1737 ": %s: Failed to start the firmware.\n", 1738 priv->net_dev->name); 1739 rc = 1; 1740 goto exit; 1741 } 1742 1743 ipw2100_initialize_ordinals(priv); 1744 1745 /* Determine capabilities of this particular HW configuration */ 1746 if (ipw2100_get_hw_features(priv)) { 1747 printk(KERN_ERR DRV_NAME 1748 ": %s: Failed to determine HW features.\n", 1749 priv->net_dev->name); 1750 rc = 1; 1751 goto exit; 1752 } 1753 1754 /* Initialize the geo */ 1755 if (libipw_set_geo(priv->ieee, &ipw_geos[0])) { 1756 printk(KERN_WARNING DRV_NAME "Could not set geo\n"); 1757 return 0; 1758 } 1759 priv->ieee->freq_band = LIBIPW_24GHZ_BAND; 1760 1761 lock = LOCK_NONE; 1762 if (ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len)) { 1763 printk(KERN_ERR DRV_NAME 1764 ": %s: Failed to clear ordinal lock.\n", 1765 priv->net_dev->name); 1766 rc = 1; 1767 goto exit; 1768 } 1769 1770 priv->status &= ~STATUS_SCANNING; 1771 1772 if (rf_kill_active(priv)) { 1773 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n", 1774 priv->net_dev->name); 1775 1776 if (priv->stop_rf_kill) { 1777 priv->stop_rf_kill = 0; 1778 queue_delayed_work(priv->workqueue, &priv->rf_kill, 1779 round_jiffies_relative(HZ)); 1780 } 1781 1782 deferred = 1; 1783 } 1784 1785 /* Turn on the interrupt so that commands can be processed */ 1786 ipw2100_enable_interrupts(priv); 1787 1788 /* Send all of the commands that must be sent prior to 1789 * HOST_COMPLETE */ 1790 if (ipw2100_adapter_setup(priv)) { 1791 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n", 1792 priv->net_dev->name); 1793 rc = 1; 1794 goto exit; 1795 } 1796 1797 if (!deferred) { 1798 /* Enable the adapter - sends HOST_COMPLETE */ 1799 if (ipw2100_enable_adapter(priv)) { 1800 printk(KERN_ERR DRV_NAME ": " 1801 "%s: failed in call to enable adapter.\n", 1802 priv->net_dev->name); 1803 ipw2100_hw_stop_adapter(priv); 1804 rc = 1; 1805 goto exit; 1806 } 1807 1808 /* Start a scan . . . */ 1809 ipw2100_set_scan_options(priv); 1810 ipw2100_start_scan(priv); 1811 } 1812 1813 exit: 1814 return rc; 1815} 1816 1817/* Called by register_netdev() */ 1818static int ipw2100_net_init(struct net_device *dev) 1819{ 1820 struct ipw2100_priv *priv = libipw_priv(dev); 1821 return ipw2100_up(priv, 1); 1822} 1823 1824static void ipw2100_down(struct ipw2100_priv *priv) 1825{ 1826 unsigned long flags; 1827 union iwreq_data wrqu = { 1828 .ap_addr = { 1829 .sa_family = ARPHRD_ETHER} 1830 }; 1831 int associated = priv->status & STATUS_ASSOCIATED; 1832 1833 /* Kill the RF switch timer */ 1834 if (!priv->stop_rf_kill) { 1835 priv->stop_rf_kill = 1; 1836 cancel_delayed_work(&priv->rf_kill); 1837 } 1838 1839 /* Kill the firmware hang check timer */ 1840 if (!priv->stop_hang_check) { 1841 priv->stop_hang_check = 1; 1842 cancel_delayed_work(&priv->hang_check); 1843 } 1844 1845 /* Kill any pending resets */ 1846 if (priv->status & STATUS_RESET_PENDING) 1847 cancel_delayed_work(&priv->reset_work); 1848 1849 /* Make sure the interrupt is on so that FW commands will be 1850 * processed correctly */ 1851 spin_lock_irqsave(&priv->low_lock, flags); 1852 ipw2100_enable_interrupts(priv); 1853 spin_unlock_irqrestore(&priv->low_lock, flags); 1854 1855 if (ipw2100_hw_stop_adapter(priv)) 1856 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n", 1857 priv->net_dev->name); 1858 1859 /* Do not disable the interrupt until _after_ we disable 1860 * the adaptor. Otherwise the CARD_DISABLE command will never 1861 * be ack'd by the firmware */ 1862 spin_lock_irqsave(&priv->low_lock, flags); 1863 ipw2100_disable_interrupts(priv); 1864 spin_unlock_irqrestore(&priv->low_lock, flags); 1865 1866 pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", 1867 PM_QOS_DEFAULT_VALUE); 1868 1869 /* We have to signal any supplicant if we are disassociating */ 1870 if (associated) 1871 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); 1872 1873 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); 1874 netif_carrier_off(priv->net_dev); 1875 netif_stop_queue(priv->net_dev); 1876} 1877 1878static void ipw2100_reset_adapter(struct work_struct *work) 1879{ 1880 struct ipw2100_priv *priv = 1881 container_of(work, struct ipw2100_priv, reset_work.work); 1882 unsigned long flags; 1883 union iwreq_data wrqu = { 1884 .ap_addr = { 1885 .sa_family = ARPHRD_ETHER} 1886 }; 1887 int associated = priv->status & STATUS_ASSOCIATED; 1888 1889 spin_lock_irqsave(&priv->low_lock, flags); 1890 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name); 1891 priv->resets++; 1892 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); 1893 priv->status |= STATUS_SECURITY_UPDATED; 1894 1895 /* Force a power cycle even if interface hasn't been opened 1896 * yet */ 1897 cancel_delayed_work(&priv->reset_work); 1898 priv->status |= STATUS_RESET_PENDING; 1899 spin_unlock_irqrestore(&priv->low_lock, flags); 1900 1901 mutex_lock(&priv->action_mutex); 1902 /* stop timed checks so that they don't interfere with reset */ 1903 priv->stop_hang_check = 1; 1904 cancel_delayed_work(&priv->hang_check); 1905 1906 /* We have to signal any supplicant if we are disassociating */ 1907 if (associated) 1908 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); 1909 1910 ipw2100_up(priv, 0); 1911 mutex_unlock(&priv->action_mutex); 1912 1913} 1914 1915static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status) 1916{ 1917 1918#define MAC_ASSOCIATION_READ_DELAY (HZ) 1919 int ret; 1920 unsigned int len, essid_len; 1921 char essid[IW_ESSID_MAX_SIZE]; 1922 u32 txrate; 1923 u32 chan; 1924 char *txratename; 1925 u8 bssid[ETH_ALEN]; 1926 DECLARE_SSID_BUF(ssid); 1927 1928 /* 1929 * TBD: BSSID is usually 00:00:00:00:00:00 here and not 1930 * an actual MAC of the AP. Seems like FW sets this 1931 * address too late. Read it later and expose through 1932 * /proc or schedule a later task to query and update 1933 */ 1934 1935 essid_len = IW_ESSID_MAX_SIZE; 1936 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, 1937 essid, &essid_len); 1938 if (ret) { 1939 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 1940 __LINE__); 1941 return; 1942 } 1943 1944 len = sizeof(u32); 1945 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len); 1946 if (ret) { 1947 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 1948 __LINE__); 1949 return; 1950 } 1951 1952 len = sizeof(u32); 1953 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len); 1954 if (ret) { 1955 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 1956 __LINE__); 1957 return; 1958 } 1959 len = ETH_ALEN; 1960 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len); 1961 if (ret) { 1962 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 1963 __LINE__); 1964 return; 1965 } 1966 memcpy(priv->ieee->bssid, bssid, ETH_ALEN); 1967 1968 switch (txrate) { 1969 case TX_RATE_1_MBIT: 1970 txratename = "1Mbps"; 1971 break; 1972 case TX_RATE_2_MBIT: 1973 txratename = "2Mbsp"; 1974 break; 1975 case TX_RATE_5_5_MBIT: 1976 txratename = "5.5Mbps"; 1977 break; 1978 case TX_RATE_11_MBIT: 1979 txratename = "11Mbps"; 1980 break; 1981 default: 1982 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate); 1983 txratename = "unknown rate"; 1984 break; 1985 } 1986 1987 IPW_DEBUG_INFO("%s: Associated with '%s' at %s, channel %d (BSSID=%pM)\n", 1988 priv->net_dev->name, print_ssid(ssid, essid, essid_len), 1989 txratename, chan, bssid); 1990 1991 /* now we copy read ssid into dev */ 1992 if (!(priv->config & CFG_STATIC_ESSID)) { 1993 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE); 1994 memcpy(priv->essid, essid, priv->essid_len); 1995 } 1996 priv->channel = chan; 1997 memcpy(priv->bssid, bssid, ETH_ALEN); 1998 1999 priv->status |= STATUS_ASSOCIATING; 2000 priv->connect_start = get_seconds(); 2001 2002 queue_delayed_work(priv->workqueue, &priv->wx_event_work, HZ / 10); 2003} 2004 2005static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid, 2006 int length, int batch_mode) 2007{ 2008 int ssid_len = min(length, IW_ESSID_MAX_SIZE); 2009 struct host_command cmd = { 2010 .host_command = SSID, 2011 .host_command_sequence = 0, 2012 .host_command_length = ssid_len 2013 }; 2014 int err; 2015 DECLARE_SSID_BUF(ssid); 2016 2017 IPW_DEBUG_HC("SSID: '%s'\n", print_ssid(ssid, essid, ssid_len)); 2018 2019 if (ssid_len) 2020 memcpy(cmd.host_command_parameters, essid, ssid_len); 2021 2022 if (!batch_mode) { 2023 err = ipw2100_disable_adapter(priv); 2024 if (err) 2025 return err; 2026 } 2027 2028 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to 2029 * disable auto association -- so we cheat by setting a bogus SSID */ 2030 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) { 2031 int i; 2032 u8 *bogus = (u8 *) cmd.host_command_parameters; 2033 for (i = 0; i < IW_ESSID_MAX_SIZE; i++) 2034 bogus[i] = 0x18 + i; 2035 cmd.host_command_length = IW_ESSID_MAX_SIZE; 2036 } 2037 2038 /* NOTE: We always send the SSID command even if the provided ESSID is 2039 * the same as what we currently think is set. */ 2040 2041 err = ipw2100_hw_send_command(priv, &cmd); 2042 if (!err) { 2043 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len); 2044 memcpy(priv->essid, essid, ssid_len); 2045 priv->essid_len = ssid_len; 2046 } 2047 2048 if (!batch_mode) { 2049 if (ipw2100_enable_adapter(priv)) 2050 err = -EIO; 2051 } 2052 2053 return err; 2054} 2055 2056static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status) 2057{ 2058 DECLARE_SSID_BUF(ssid); 2059 2060 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, 2061 "disassociated: '%s' %pM \n", 2062 print_ssid(ssid, priv->essid, priv->essid_len), 2063 priv->bssid); 2064 2065 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); 2066 2067 if (priv->status & STATUS_STOPPING) { 2068 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n"); 2069 return; 2070 } 2071 2072 memset(priv->bssid, 0, ETH_ALEN); 2073 memset(priv->ieee->bssid, 0, ETH_ALEN); 2074 2075 netif_carrier_off(priv->net_dev); 2076 netif_stop_queue(priv->net_dev); 2077 2078 if (!(priv->status & STATUS_RUNNING)) 2079 return; 2080 2081 if (priv->status & STATUS_SECURITY_UPDATED) 2082 queue_delayed_work(priv->workqueue, &priv->security_work, 0); 2083 2084 queue_delayed_work(priv->workqueue, &priv->wx_event_work, 0); 2085} 2086 2087static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status) 2088{ 2089 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n", 2090 priv->net_dev->name); 2091 2092 /* RF_KILL is now enabled (else we wouldn't be here) */ 2093 priv->status |= STATUS_RF_KILL_HW; 2094 2095 /* Make sure the RF Kill check timer is running */ 2096 priv->stop_rf_kill = 0; 2097 cancel_delayed_work(&priv->rf_kill); 2098 queue_delayed_work(priv->workqueue, &priv->rf_kill, 2099 round_jiffies_relative(HZ)); 2100} 2101 2102static void send_scan_event(void *data) 2103{ 2104 struct ipw2100_priv *priv = data; 2105 union iwreq_data wrqu; 2106 2107 wrqu.data.length = 0; 2108 wrqu.data.flags = 0; 2109 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL); 2110} 2111 2112static void ipw2100_scan_event_later(struct work_struct *work) 2113{ 2114 send_scan_event(container_of(work, struct ipw2100_priv, 2115 scan_event_later.work)); 2116} 2117 2118static void ipw2100_scan_event_now(struct work_struct *work) 2119{ 2120 send_scan_event(container_of(work, struct ipw2100_priv, 2121 scan_event_now)); 2122} 2123 2124static void isr_scan_complete(struct ipw2100_priv *priv, u32 status) 2125{ 2126 IPW_DEBUG_SCAN("scan complete\n"); 2127 /* Age the scan results... */ 2128 priv->ieee->scans++; 2129 priv->status &= ~STATUS_SCANNING; 2130 2131 /* Only userspace-requested scan completion events go out immediately */ 2132 if (!priv->user_requested_scan) { 2133 if (!delayed_work_pending(&priv->scan_event_later)) 2134 queue_delayed_work(priv->workqueue, 2135 &priv->scan_event_later, 2136 round_jiffies_relative(msecs_to_jiffies(4000))); 2137 } else { 2138 priv->user_requested_scan = 0; 2139 cancel_delayed_work(&priv->scan_event_later); 2140 queue_work(priv->workqueue, &priv->scan_event_now); 2141 } 2142} 2143 2144#ifdef CONFIG_IPW2100_DEBUG 2145#define IPW2100_HANDLER(v, f) { v, f, # v } 2146struct ipw2100_status_indicator { 2147 int status; 2148 void (*cb) (struct ipw2100_priv * priv, u32 status); 2149 char *name; 2150}; 2151#else 2152#define IPW2100_HANDLER(v, f) { v, f } 2153struct ipw2100_status_indicator { 2154 int status; 2155 void (*cb) (struct ipw2100_priv * priv, u32 status); 2156}; 2157#endif /* CONFIG_IPW2100_DEBUG */ 2158 2159static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status) 2160{ 2161 IPW_DEBUG_SCAN("Scanning...\n"); 2162 priv->status |= STATUS_SCANNING; 2163} 2164 2165static const struct ipw2100_status_indicator status_handlers[] = { 2166 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL), 2167 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL), 2168 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated), 2169 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost), 2170 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL), 2171 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete), 2172 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL), 2173 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL), 2174 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill), 2175 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL), 2176 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL), 2177 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning), 2178 IPW2100_HANDLER(-1, NULL) 2179}; 2180 2181static void isr_status_change(struct ipw2100_priv *priv, int status) 2182{ 2183 int i; 2184 2185 if (status == IPW_STATE_SCANNING && 2186 priv->status & STATUS_ASSOCIATED && 2187 !(priv->status & STATUS_SCANNING)) { 2188 IPW_DEBUG_INFO("Scan detected while associated, with " 2189 "no scan request. Restarting firmware.\n"); 2190 2191 /* Wake up any sleeping jobs */ 2192 schedule_reset(priv); 2193 } 2194 2195 for (i = 0; status_handlers[i].status != -1; i++) { 2196 if (status == status_handlers[i].status) { 2197 IPW_DEBUG_NOTIF("Status change: %s\n", 2198 status_handlers[i].name); 2199 if (status_handlers[i].cb) 2200 status_handlers[i].cb(priv, status); 2201 priv->wstats.status = status; 2202 return; 2203 } 2204 } 2205 2206 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status); 2207} 2208 2209static void isr_rx_complete_command(struct ipw2100_priv *priv, 2210 struct ipw2100_cmd_header *cmd) 2211{ 2212#ifdef CONFIG_IPW2100_DEBUG 2213 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) { 2214 IPW_DEBUG_HC("Command completed '%s (%d)'\n", 2215 command_types[cmd->host_command_reg], 2216 cmd->host_command_reg); 2217 } 2218#endif 2219 if (cmd->host_command_reg == HOST_COMPLETE) 2220 priv->status |= STATUS_ENABLED; 2221 2222 if (cmd->host_command_reg == CARD_DISABLE) 2223 priv->status &= ~STATUS_ENABLED; 2224 2225 priv->status &= ~STATUS_CMD_ACTIVE; 2226 2227 wake_up_interruptible(&priv->wait_command_queue); 2228} 2229 2230#ifdef CONFIG_IPW2100_DEBUG 2231static const char *frame_types[] = { 2232 "COMMAND_STATUS_VAL", 2233 "STATUS_CHANGE_VAL", 2234 "P80211_DATA_VAL", 2235 "P8023_DATA_VAL", 2236 "HOST_NOTIFICATION_VAL" 2237}; 2238#endif 2239 2240static int ipw2100_alloc_skb(struct ipw2100_priv *priv, 2241 struct ipw2100_rx_packet *packet) 2242{ 2243 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx)); 2244 if (!packet->skb) 2245 return -ENOMEM; 2246 2247 packet->rxp = (struct ipw2100_rx *)packet->skb->data; 2248 packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data, 2249 sizeof(struct ipw2100_rx), 2250 PCI_DMA_FROMDEVICE); 2251 /* NOTE: pci_map_single does not return an error code, and 0 is a valid 2252 * dma_addr */ 2253 2254 return 0; 2255} 2256 2257#define SEARCH_ERROR 0xffffffff 2258#define SEARCH_FAIL 0xfffffffe 2259#define SEARCH_SUCCESS 0xfffffff0 2260#define SEARCH_DISCARD 0 2261#define SEARCH_SNAPSHOT 1 2262 2263#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff)) 2264static void ipw2100_snapshot_free(struct ipw2100_priv *priv) 2265{ 2266 int i; 2267 if (!priv->snapshot[0]) 2268 return; 2269 for (i = 0; i < 0x30; i++) 2270 kfree(priv->snapshot[i]); 2271 priv->snapshot[0] = NULL; 2272} 2273 2274#ifdef IPW2100_DEBUG_C3 2275static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv) 2276{ 2277 int i; 2278 if (priv->snapshot[0]) 2279 return 1; 2280 for (i = 0; i < 0x30; i++) { 2281 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC); 2282 if (!priv->snapshot[i]) { 2283 IPW_DEBUG_INFO("%s: Error allocating snapshot " 2284 "buffer %d\n", priv->net_dev->name, i); 2285 while (i > 0) 2286 kfree(priv->snapshot[--i]); 2287 priv->snapshot[0] = NULL; 2288 return 0; 2289 } 2290 } 2291 2292 return 1; 2293} 2294 2295static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf, 2296 size_t len, int mode) 2297{ 2298 u32 i, j; 2299 u32 tmp; 2300 u8 *s, *d; 2301 u32 ret; 2302 2303 s = in_buf; 2304 if (mode == SEARCH_SNAPSHOT) { 2305 if (!ipw2100_snapshot_alloc(priv)) 2306 mode = SEARCH_DISCARD; 2307 } 2308 2309 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) { 2310 read_nic_dword(priv->net_dev, i, &tmp); 2311 if (mode == SEARCH_SNAPSHOT) 2312 *(u32 *) SNAPSHOT_ADDR(i) = tmp; 2313 if (ret == SEARCH_FAIL) { 2314 d = (u8 *) & tmp; 2315 for (j = 0; j < 4; j++) { 2316 if (*s != *d) { 2317 s = in_buf; 2318 continue; 2319 } 2320 2321 s++; 2322 d++; 2323 2324 if ((s - in_buf) == len) 2325 ret = (i + j) - len + 1; 2326 } 2327 } else if (mode == SEARCH_DISCARD) 2328 return ret; 2329 } 2330 2331 return ret; 2332} 2333#endif 2334 2335/* 2336 * 2337 * 0) Disconnect the SKB from the firmware (just unmap) 2338 * 1) Pack the ETH header into the SKB 2339 * 2) Pass the SKB to the network stack 2340 * 2341 * When packet is provided by the firmware, it contains the following: 2342 * 2343 * . libipw_hdr 2344 * . libipw_snap_hdr 2345 * 2346 * The size of the constructed ethernet 2347 * 2348 */ 2349#ifdef IPW2100_RX_DEBUG 2350static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH]; 2351#endif 2352 2353static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i) 2354{ 2355#ifdef IPW2100_DEBUG_C3 2356 struct ipw2100_status *status = &priv->status_queue.drv[i]; 2357 u32 match, reg; 2358 int j; 2359#endif 2360 2361 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n", 2362 i * sizeof(struct ipw2100_status)); 2363 2364#ifdef IPW2100_DEBUG_C3 2365 /* Halt the firmware so we can get a good image */ 2366 write_register(priv->net_dev, IPW_REG_RESET_REG, 2367 IPW_AUX_HOST_RESET_REG_STOP_MASTER); 2368 j = 5; 2369 do { 2370 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY); 2371 read_register(priv->net_dev, IPW_REG_RESET_REG, ®); 2372 2373 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED) 2374 break; 2375 } while (j--); 2376 2377 match = ipw2100_match_buf(priv, (u8 *) status, 2378 sizeof(struct ipw2100_status), 2379 SEARCH_SNAPSHOT); 2380 if (match < SEARCH_SUCCESS) 2381 IPW_DEBUG_INFO("%s: DMA status match in Firmware at " 2382 "offset 0x%06X, length %d:\n", 2383 priv->net_dev->name, match, 2384 sizeof(struct ipw2100_status)); 2385 else 2386 IPW_DEBUG_INFO("%s: No DMA status match in " 2387 "Firmware.\n", priv->net_dev->name); 2388 2389 printk_buf((u8 *) priv->status_queue.drv, 2390 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH); 2391#endif 2392 2393 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION; 2394 priv->net_dev->stats.rx_errors++; 2395 schedule_reset(priv); 2396} 2397 2398static void isr_rx(struct ipw2100_priv *priv, int i, 2399 struct libipw_rx_stats *stats) 2400{ 2401 struct net_device *dev = priv->net_dev; 2402 struct ipw2100_status *status = &priv->status_queue.drv[i]; 2403 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i]; 2404 2405 IPW_DEBUG_RX("Handler...\n"); 2406 2407 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) { 2408 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!" 2409 " Dropping.\n", 2410 dev->name, 2411 status->frame_size, skb_tailroom(packet->skb)); 2412 dev->stats.rx_errors++; 2413 return; 2414 } 2415 2416 if (unlikely(!netif_running(dev))) { 2417 dev->stats.rx_errors++; 2418 priv->wstats.discard.misc++; 2419 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); 2420 return; 2421 } 2422 2423 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR && 2424 !(priv->status & STATUS_ASSOCIATED))) { 2425 IPW_DEBUG_DROP("Dropping packet while not associated.\n"); 2426 priv->wstats.discard.misc++; 2427 return; 2428 } 2429 2430 pci_unmap_single(priv->pci_dev, 2431 packet->dma_addr, 2432 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE); 2433 2434 skb_put(packet->skb, status->frame_size); 2435 2436#ifdef IPW2100_RX_DEBUG 2437 /* Make a copy of the frame so we can dump it to the logs if 2438 * libipw_rx fails */ 2439 skb_copy_from_linear_data(packet->skb, packet_data, 2440 min_t(u32, status->frame_size, 2441 IPW_RX_NIC_BUFFER_LENGTH)); 2442#endif 2443 2444 if (!libipw_rx(priv->ieee, packet->skb, stats)) { 2445#ifdef IPW2100_RX_DEBUG 2446 IPW_DEBUG_DROP("%s: Non consumed packet:\n", 2447 dev->name); 2448 printk_buf(IPW_DL_DROP, packet_data, status->frame_size); 2449#endif 2450 dev->stats.rx_errors++; 2451 2452 /* libipw_rx failed, so it didn't free the SKB */ 2453 dev_kfree_skb_any(packet->skb); 2454 packet->skb = NULL; 2455 } 2456 2457 /* We need to allocate a new SKB and attach it to the RDB. */ 2458 if (unlikely(ipw2100_alloc_skb(priv, packet))) { 2459 printk(KERN_WARNING DRV_NAME ": " 2460 "%s: Unable to allocate SKB onto RBD ring - disabling " 2461 "adapter.\n", dev->name); 2462 /* TODO: schedule adapter shutdown */ 2463 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n"); 2464 } 2465 2466 /* Update the RDB entry */ 2467 priv->rx_queue.drv[i].host_addr = packet->dma_addr; 2468} 2469 2470#ifdef CONFIG_IPW2100_MONITOR 2471 2472static void isr_rx_monitor(struct ipw2100_priv *priv, int i, 2473 struct libipw_rx_stats *stats) 2474{ 2475 struct net_device *dev = priv->net_dev; 2476 struct ipw2100_status *status = &priv->status_queue.drv[i]; 2477 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i]; 2478 2479 /* Magic struct that slots into the radiotap header -- no reason 2480 * to build this manually element by element, we can write it much 2481 * more efficiently than we can parse it. ORDER MATTERS HERE */ 2482 struct ipw_rt_hdr { 2483 struct ieee80211_radiotap_header rt_hdr; 2484 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */ 2485 } *ipw_rt; 2486 2487 IPW_DEBUG_RX("Handler...\n"); 2488 2489 if (unlikely(status->frame_size > skb_tailroom(packet->skb) - 2490 sizeof(struct ipw_rt_hdr))) { 2491 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!" 2492 " Dropping.\n", 2493 dev->name, 2494 status->frame_size, 2495 skb_tailroom(packet->skb)); 2496 dev->stats.rx_errors++; 2497 return; 2498 } 2499 2500 if (unlikely(!netif_running(dev))) { 2501 dev->stats.rx_errors++; 2502 priv->wstats.discard.misc++; 2503 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); 2504 return; 2505 } 2506 2507 if (unlikely(priv->config & CFG_CRC_CHECK && 2508 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) { 2509 IPW_DEBUG_RX("CRC error in packet. Dropping.\n"); 2510 dev->stats.rx_errors++; 2511 return; 2512 } 2513 2514 pci_unmap_single(priv->pci_dev, packet->dma_addr, 2515 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE); 2516 memmove(packet->skb->data + sizeof(struct ipw_rt_hdr), 2517 packet->skb->data, status->frame_size); 2518 2519 ipw_rt = (struct ipw_rt_hdr *) packet->skb->data; 2520 2521 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; 2522 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ 2523 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */ 2524 2525 ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL); 2526 2527 ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM; 2528 2529 skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr)); 2530 2531 if (!libipw_rx(priv->ieee, packet->skb, stats)) { 2532 dev->stats.rx_errors++; 2533 2534 /* libipw_rx failed, so it didn't free the SKB */ 2535 dev_kfree_skb_any(packet->skb); 2536 packet->skb = NULL; 2537 } 2538 2539 /* We need to allocate a new SKB and attach it to the RDB. */ 2540 if (unlikely(ipw2100_alloc_skb(priv, packet))) { 2541 IPW_DEBUG_WARNING( 2542 "%s: Unable to allocate SKB onto RBD ring - disabling " 2543 "adapter.\n", dev->name); 2544 /* TODO: schedule adapter shutdown */ 2545 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n"); 2546 } 2547 2548 /* Update the RDB entry */ 2549 priv->rx_queue.drv[i].host_addr = packet->dma_addr; 2550} 2551 2552#endif 2553 2554static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i) 2555{ 2556 struct ipw2100_status *status = &priv->status_queue.drv[i]; 2557 struct ipw2100_rx *u = priv->rx_buffers[i].rxp; 2558 u16 frame_type = status->status_fields & STATUS_TYPE_MASK; 2559 2560 switch (frame_type) { 2561 case COMMAND_STATUS_VAL: 2562 return (status->frame_size != sizeof(u->rx_data.command)); 2563 case STATUS_CHANGE_VAL: 2564 return (status->frame_size != sizeof(u->rx_data.status)); 2565 case HOST_NOTIFICATION_VAL: 2566 return (status->frame_size < sizeof(u->rx_data.notification)); 2567 case P80211_DATA_VAL: 2568 case P8023_DATA_VAL: 2569#ifdef CONFIG_IPW2100_MONITOR 2570 return 0; 2571#else 2572 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) { 2573 case IEEE80211_FTYPE_MGMT: 2574 case IEEE80211_FTYPE_CTL: 2575 return 0; 2576 case IEEE80211_FTYPE_DATA: 2577 return (status->frame_size > 2578 IPW_MAX_802_11_PAYLOAD_LENGTH); 2579 } 2580#endif 2581 } 2582 2583 return 1; 2584} 2585 2586/* 2587 * ipw2100 interrupts are disabled at this point, and the ISR 2588 * is the only code that calls this method. So, we do not need 2589 * to play with any locks. 2590 * 2591 * RX Queue works as follows: 2592 * 2593 * Read index - firmware places packet in entry identified by the 2594 * Read index and advances Read index. In this manner, 2595 * Read index will always point to the next packet to 2596 * be filled--but not yet valid. 2597 * 2598 * Write index - driver fills this entry with an unused RBD entry. 2599 * This entry has not filled by the firmware yet. 2600 * 2601 * In between the W and R indexes are the RBDs that have been received 2602 * but not yet processed. 2603 * 2604 * The process of handling packets will start at WRITE + 1 and advance 2605 * until it reaches the READ index. 2606 * 2607 * The WRITE index is cached in the variable 'priv->rx_queue.next'. 2608 * 2609 */ 2610static void __ipw2100_rx_process(struct ipw2100_priv *priv) 2611{ 2612 struct ipw2100_bd_queue *rxq = &priv->rx_queue; 2613 struct ipw2100_status_queue *sq = &priv->status_queue; 2614 struct ipw2100_rx_packet *packet; 2615 u16 frame_type; 2616 u32 r, w, i, s; 2617 struct ipw2100_rx *u; 2618 struct libipw_rx_stats stats = { 2619 .mac_time = jiffies, 2620 }; 2621 2622 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r); 2623 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w); 2624 2625 if (r >= rxq->entries) { 2626 IPW_DEBUG_RX("exit - bad read index\n"); 2627 return; 2628 } 2629 2630 i = (rxq->next + 1) % rxq->entries; 2631 s = i; 2632 while (i != r) { 2633 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n", 2634 r, rxq->next, i); */ 2635 2636 packet = &priv->rx_buffers[i]; 2637 2638 /* Sync the DMA for the STATUS buffer so CPU is sure to get 2639 * the correct values */ 2640 pci_dma_sync_single_for_cpu(priv->pci_dev, 2641 sq->nic + 2642 sizeof(struct ipw2100_status) * i, 2643 sizeof(struct ipw2100_status), 2644 PCI_DMA_FROMDEVICE); 2645 2646 /* Sync the DMA for the RX buffer so CPU is sure to get 2647 * the correct values */ 2648 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr, 2649 sizeof(struct ipw2100_rx), 2650 PCI_DMA_FROMDEVICE); 2651 2652 if (unlikely(ipw2100_corruption_check(priv, i))) { 2653 ipw2100_corruption_detected(priv, i); 2654 goto increment; 2655 } 2656 2657 u = packet->rxp; 2658 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK; 2659 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM; 2660 stats.len = sq->drv[i].frame_size; 2661 2662 stats.mask = 0; 2663 if (stats.rssi != 0) 2664 stats.mask |= LIBIPW_STATMASK_RSSI; 2665 stats.freq = LIBIPW_24GHZ_BAND; 2666 2667 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n", 2668 priv->net_dev->name, frame_types[frame_type], 2669 stats.len); 2670 2671 switch (frame_type) { 2672 case COMMAND_STATUS_VAL: 2673 /* Reset Rx watchdog */ 2674 isr_rx_complete_command(priv, &u->rx_data.command); 2675 break; 2676 2677 case STATUS_CHANGE_VAL: 2678 isr_status_change(priv, u->rx_data.status); 2679 break; 2680 2681 case P80211_DATA_VAL: 2682 case P8023_DATA_VAL: 2683#ifdef CONFIG_IPW2100_MONITOR 2684 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 2685 isr_rx_monitor(priv, i, &stats); 2686 break; 2687 } 2688#endif 2689 if (stats.len < sizeof(struct libipw_hdr_3addr)) 2690 break; 2691 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) { 2692 case IEEE80211_FTYPE_MGMT: 2693 libipw_rx_mgt(priv->ieee, 2694 &u->rx_data.header, &stats); 2695 break; 2696 2697 case IEEE80211_FTYPE_CTL: 2698 break; 2699 2700 case IEEE80211_FTYPE_DATA: 2701 isr_rx(priv, i, &stats); 2702 break; 2703 2704 } 2705 break; 2706 } 2707 2708 increment: 2709 /* clear status field associated with this RBD */ 2710 rxq->drv[i].status.info.field = 0; 2711 2712 i = (i + 1) % rxq->entries; 2713 } 2714 2715 if (i != s) { 2716 /* backtrack one entry, wrapping to end if at 0 */ 2717 rxq->next = (i ? i : rxq->entries) - 1; 2718 2719 write_register(priv->net_dev, 2720 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next); 2721 } 2722} 2723 2724/* 2725 * __ipw2100_tx_process 2726 * 2727 * This routine will determine whether the next packet on 2728 * the fw_pend_list has been processed by the firmware yet. 2729 * 2730 * If not, then it does nothing and returns. 2731 * 2732 * If so, then it removes the item from the fw_pend_list, frees 2733 * any associated storage, and places the item back on the 2734 * free list of its source (either msg_free_list or tx_free_list) 2735 * 2736 * TX Queue works as follows: 2737 * 2738 * Read index - points to the next TBD that the firmware will 2739 * process. The firmware will read the data, and once 2740 * done processing, it will advance the Read index. 2741 * 2742 * Write index - driver fills this entry with an constructed TBD 2743 * entry. The Write index is not advanced until the 2744 * packet has been configured. 2745 * 2746 * In between the W and R indexes are the TBDs that have NOT been 2747 * processed. Lagging behind the R index are packets that have 2748 * been processed but have not been freed by the driver. 2749 * 2750 * In order to free old storage, an internal index will be maintained 2751 * that points to the next packet to be freed. When all used 2752 * packets have been freed, the oldest index will be the same as the 2753 * firmware's read index. 2754 * 2755 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest' 2756 * 2757 * Because the TBD structure can not contain arbitrary data, the 2758 * driver must keep an internal queue of cached allocations such that 2759 * it can put that data back into the tx_free_list and msg_free_list 2760 * for use by future command and data packets. 2761 * 2762 */ 2763static int __ipw2100_tx_process(struct ipw2100_priv *priv) 2764{ 2765 struct ipw2100_bd_queue *txq = &priv->tx_queue; 2766 struct ipw2100_bd *tbd; 2767 struct list_head *element; 2768 struct ipw2100_tx_packet *packet; 2769 int descriptors_used; 2770 int e, i; 2771 u32 r, w, frag_num = 0; 2772 2773 if (list_empty(&priv->fw_pend_list)) 2774 return 0; 2775 2776 element = priv->fw_pend_list.next; 2777 2778 packet = list_entry(element, struct ipw2100_tx_packet, list); 2779 tbd = &txq->drv[packet->index]; 2780 2781 /* Determine how many TBD entries must be finished... */ 2782 switch (packet->type) { 2783 case COMMAND: 2784 /* COMMAND uses only one slot; don't advance */ 2785 descriptors_used = 1; 2786 e = txq->oldest; 2787 break; 2788 2789 case DATA: 2790 /* DATA uses two slots; advance and loop position. */ 2791 descriptors_used = tbd->num_fragments; 2792 frag_num = tbd->num_fragments - 1; 2793 e = txq->oldest + frag_num; 2794 e %= txq->entries; 2795 break; 2796 2797 default: 2798 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n", 2799 priv->net_dev->name); 2800 return 0; 2801 } 2802 2803 /* if the last TBD is not done by NIC yet, then packet is 2804 * not ready to be released. 2805 * 2806 */ 2807 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX, 2808 &r); 2809 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX, 2810 &w); 2811 if (w != txq->next) 2812 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n", 2813 priv->net_dev->name); 2814 2815 /* 2816 * txq->next is the index of the last packet written txq->oldest is 2817 * the index of the r is the index of the next packet to be read by 2818 * firmware 2819 */ 2820 2821 /* 2822 * Quick graphic to help you visualize the following 2823 * if / else statement 2824 * 2825 * ===>| s---->|=============== 2826 * e>| 2827 * | a | b | c | d | e | f | g | h | i | j | k | l 2828 * r---->| 2829 * w 2830 * 2831 * w - updated by driver 2832 * r - updated by firmware 2833 * s - start of oldest BD entry (txq->oldest) 2834 * e - end of oldest BD entry 2835 * 2836 */ 2837 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) { 2838 IPW_DEBUG_TX("exit - no processed packets ready to release.\n"); 2839 return 0; 2840 } 2841 2842 list_del(element); 2843 DEC_STAT(&priv->fw_pend_stat); 2844 2845#ifdef CONFIG_IPW2100_DEBUG 2846 { 2847 i = txq->oldest; 2848 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i, 2849 &txq->drv[i], 2850 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)), 2851 txq->drv[i].host_addr, txq->drv[i].buf_length); 2852 2853 if (packet->type == DATA) { 2854 i = (i + 1) % txq->entries; 2855 2856 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i, 2857 &txq->drv[i], 2858 (u32) (txq->nic + i * 2859 sizeof(struct ipw2100_bd)), 2860 (u32) txq->drv[i].host_addr, 2861 txq->drv[i].buf_length); 2862 } 2863 } 2864#endif 2865 2866 switch (packet->type) { 2867 case DATA: 2868 if (txq->drv[txq->oldest].status.info.fields.txType != 0) 2869 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. " 2870 "Expecting DATA TBD but pulled " 2871 "something else: ids %d=%d.\n", 2872 priv->net_dev->name, txq->oldest, packet->index); 2873 2874 /* DATA packet; we have to unmap and free the SKB */ 2875 for (i = 0; i < frag_num; i++) { 2876 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries]; 2877 2878 IPW_DEBUG_TX("TX%d P=%08x L=%d\n", 2879 (packet->index + 1 + i) % txq->entries, 2880 tbd->host_addr, tbd->buf_length); 2881 2882 pci_unmap_single(priv->pci_dev, 2883 tbd->host_addr, 2884 tbd->buf_length, PCI_DMA_TODEVICE); 2885 } 2886 2887 libipw_txb_free(packet->info.d_struct.txb); 2888 packet->info.d_struct.txb = NULL; 2889 2890 list_add_tail(element, &priv->tx_free_list); 2891 INC_STAT(&priv->tx_free_stat); 2892 2893 /* We have a free slot in the Tx queue, so wake up the 2894 * transmit layer if it is stopped. */ 2895 if (priv->status & STATUS_ASSOCIATED) 2896 netif_wake_queue(priv->net_dev); 2897 2898 /* A packet was processed by the hardware, so update the 2899 * watchdog */ 2900 priv->net_dev->trans_start = jiffies; 2901 2902 break; 2903 2904 case COMMAND: 2905 if (txq->drv[txq->oldest].status.info.fields.txType != 1) 2906 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. " 2907 "Expecting COMMAND TBD but pulled " 2908 "something else: ids %d=%d.\n", 2909 priv->net_dev->name, txq->oldest, packet->index); 2910 2911#ifdef CONFIG_IPW2100_DEBUG 2912 if (packet->info.c_struct.cmd->host_command_reg < 2913 ARRAY_SIZE(command_types)) 2914 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n", 2915 command_types[packet->info.c_struct.cmd-> 2916 host_command_reg], 2917 packet->info.c_struct.cmd-> 2918 host_command_reg, 2919 packet->info.c_struct.cmd->cmd_status_reg); 2920#endif 2921 2922 list_add_tail(element, &priv->msg_free_list); 2923 INC_STAT(&priv->msg_free_stat); 2924 break; 2925 } 2926 2927 /* advance oldest used TBD pointer to start of next entry */ 2928 txq->oldest = (e + 1) % txq->entries; 2929 /* increase available TBDs number */ 2930 txq->available += descriptors_used; 2931 SET_STAT(&priv->txq_stat, txq->available); 2932 2933 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n", 2934 jiffies - packet->jiffy_start); 2935 2936 return (!list_empty(&priv->fw_pend_list)); 2937} 2938 2939static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv) 2940{ 2941 int i = 0; 2942 2943 while (__ipw2100_tx_process(priv) && i < 200) 2944 i++; 2945 2946 if (i == 200) { 2947 printk(KERN_WARNING DRV_NAME ": " 2948 "%s: Driver is running slow (%d iters).\n", 2949 priv->net_dev->name, i); 2950 } 2951} 2952 2953static void ipw2100_tx_send_commands(struct ipw2100_priv *priv) 2954{ 2955 struct list_head *element; 2956 struct ipw2100_tx_packet *packet; 2957 struct ipw2100_bd_queue *txq = &priv->tx_queue; 2958 struct ipw2100_bd *tbd; 2959 int next = txq->next; 2960 2961 while (!list_empty(&priv->msg_pend_list)) { 2962 /* if there isn't enough space in TBD queue, then 2963 * don't stuff a new one in. 2964 * NOTE: 3 are needed as a command will take one, 2965 * and there is a minimum of 2 that must be 2966 * maintained between the r and w indexes 2967 */ 2968 if (txq->available <= 3) { 2969 IPW_DEBUG_TX("no room in tx_queue\n"); 2970 break; 2971 } 2972 2973 element = priv->msg_pend_list.next; 2974 list_del(element); 2975 DEC_STAT(&priv->msg_pend_stat); 2976 2977 packet = list_entry(element, struct ipw2100_tx_packet, list); 2978 2979 IPW_DEBUG_TX("using TBD at virt=%p, phys=%p\n", 2980 &txq->drv[txq->next], 2981 (void *)(txq->nic + txq->next * 2982 sizeof(struct ipw2100_bd))); 2983 2984 packet->index = txq->next; 2985 2986 tbd = &txq->drv[txq->next]; 2987 2988 /* initialize TBD */ 2989 tbd->host_addr = packet->info.c_struct.cmd_phys; 2990 tbd->buf_length = sizeof(struct ipw2100_cmd_header); 2991 /* not marking number of fragments causes problems 2992 * with f/w debug version */ 2993 tbd->num_fragments = 1; 2994 tbd->status.info.field = 2995 IPW_BD_STATUS_TX_FRAME_COMMAND | 2996 IPW_BD_STATUS_TX_INTERRUPT_ENABLE; 2997 2998 /* update TBD queue counters */ 2999 txq->next++; 3000 txq->next %= txq->entries; 3001 txq->available--; 3002 DEC_STAT(&priv->txq_stat); 3003 3004 list_add_tail(element, &priv->fw_pend_list); 3005 INC_STAT(&priv->fw_pend_stat); 3006 } 3007 3008 if (txq->next != next) { 3009 /* kick off the DMA by notifying firmware the 3010 * write index has moved; make sure TBD stores are sync'd */ 3011 wmb(); 3012 write_register(priv->net_dev, 3013 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX, 3014 txq->next); 3015 } 3016} 3017 3018/* 3019 * ipw2100_tx_send_data 3020 * 3021 */ 3022static void ipw2100_tx_send_data(struct ipw2100_priv *priv) 3023{ 3024 struct list_head *element; 3025 struct ipw2100_tx_packet *packet; 3026 struct ipw2100_bd_queue *txq = &priv->tx_queue; 3027 struct ipw2100_bd *tbd; 3028 int next = txq->next; 3029 int i = 0; 3030 struct ipw2100_data_header *ipw_hdr; 3031 struct libipw_hdr_3addr *hdr; 3032 3033 while (!list_empty(&priv->tx_pend_list)) { 3034 /* if there isn't enough space in TBD queue, then 3035 * don't stuff a new one in. 3036 * NOTE: 4 are needed as a data will take two, 3037 * and there is a minimum of 2 that must be 3038 * maintained between the r and w indexes 3039 */ 3040 element = priv->tx_pend_list.next; 3041 packet = list_entry(element, struct ipw2100_tx_packet, list); 3042 3043 if (unlikely(1 + packet->info.d_struct.txb->nr_frags > 3044 IPW_MAX_BDS)) { 3045 /* TODO: Support merging buffers if more than 3046 * IPW_MAX_BDS are used */ 3047 IPW_DEBUG_INFO("%s: Maximum BD theshold exceeded. " 3048 "Increase fragmentation level.\n", 3049 priv->net_dev->name); 3050 } 3051 3052 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) { 3053 IPW_DEBUG_TX("no room in tx_queue\n"); 3054 break; 3055 } 3056 3057 list_del(element); 3058 DEC_STAT(&priv->tx_pend_stat); 3059 3060 tbd = &txq->drv[txq->next]; 3061 3062 packet->index = txq->next; 3063 3064 ipw_hdr = packet->info.d_struct.data; 3065 hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb-> 3066 fragments[0]->data; 3067 3068 if (priv->ieee->iw_mode == IW_MODE_INFRA) { 3069 /* To DS: Addr1 = BSSID, Addr2 = SA, 3070 Addr3 = DA */ 3071 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN); 3072 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN); 3073 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 3074 /* not From/To DS: Addr1 = DA, Addr2 = SA, 3075 Addr3 = BSSID */ 3076 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN); 3077 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN); 3078 } 3079 3080 ipw_hdr->host_command_reg = SEND; 3081 ipw_hdr->host_command_reg1 = 0; 3082 3083 /* For now we only support host based encryption */ 3084 ipw_hdr->needs_encryption = 0; 3085 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted; 3086 if (packet->info.d_struct.txb->nr_frags > 1) 3087 ipw_hdr->fragment_size = 3088 packet->info.d_struct.txb->frag_size - 3089 LIBIPW_3ADDR_LEN; 3090 else 3091 ipw_hdr->fragment_size = 0; 3092 3093 tbd->host_addr = packet->info.d_struct.data_phys; 3094 tbd->buf_length = sizeof(struct ipw2100_data_header); 3095 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags; 3096 tbd->status.info.field = 3097 IPW_BD_STATUS_TX_FRAME_802_3 | 3098 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT; 3099 txq->next++; 3100 txq->next %= txq->entries; 3101 3102 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n", 3103 packet->index, tbd->host_addr, tbd->buf_length); 3104#ifdef CONFIG_IPW2100_DEBUG 3105 if (packet->info.d_struct.txb->nr_frags > 1) 3106 IPW_DEBUG_FRAG("fragment Tx: %d frames\n", 3107 packet->info.d_struct.txb->nr_frags); 3108#endif 3109 3110 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) { 3111 tbd = &txq->drv[txq->next]; 3112 if (i == packet->info.d_struct.txb->nr_frags - 1) 3113 tbd->status.info.field = 3114 IPW_BD_STATUS_TX_FRAME_802_3 | 3115 IPW_BD_STATUS_TX_INTERRUPT_ENABLE; 3116 else 3117 tbd->status.info.field = 3118 IPW_BD_STATUS_TX_FRAME_802_3 | 3119 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT; 3120 3121 tbd->buf_length = packet->info.d_struct.txb-> 3122 fragments[i]->len - LIBIPW_3ADDR_LEN; 3123 3124 tbd->host_addr = pci_map_single(priv->pci_dev, 3125 packet->info.d_struct. 3126 txb->fragments[i]-> 3127 data + 3128 LIBIPW_3ADDR_LEN, 3129 tbd->buf_length, 3130 PCI_DMA_TODEVICE); 3131 3132 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n", 3133 txq->next, tbd->host_addr, 3134 tbd->buf_length); 3135 3136 pci_dma_sync_single_for_device(priv->pci_dev, 3137 tbd->host_addr, 3138 tbd->buf_length, 3139 PCI_DMA_TODEVICE); 3140 3141 txq->next++; 3142 txq->next %= txq->entries; 3143 } 3144 3145 txq->available -= 1 + packet->info.d_struct.txb->nr_frags; 3146 SET_STAT(&priv->txq_stat, txq->available); 3147 3148 list_add_tail(element, &priv->fw_pend_list); 3149 INC_STAT(&priv->fw_pend_stat); 3150 } 3151 3152 if (txq->next != next) { 3153 /* kick off the DMA by notifying firmware the 3154 * write index has moved; make sure TBD stores are sync'd */ 3155 write_register(priv->net_dev, 3156 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX, 3157 txq->next); 3158 } 3159 return; 3160} 3161 3162static void ipw2100_irq_tasklet(struct ipw2100_priv *priv) 3163{ 3164 struct net_device *dev = priv->net_dev; 3165 unsigned long flags; 3166 u32 inta, tmp; 3167 3168 spin_lock_irqsave(&priv->low_lock, flags); 3169 ipw2100_disable_interrupts(priv); 3170 3171 read_register(dev, IPW_REG_INTA, &inta); 3172 3173 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n", 3174 (unsigned long)inta & IPW_INTERRUPT_MASK); 3175 3176 priv->in_isr++; 3177 priv->interrupts++; 3178 3179 /* We do not loop and keep polling for more interrupts as this 3180 * is frowned upon and doesn't play nicely with other potentially 3181 * chained IRQs */ 3182 IPW_DEBUG_ISR("INTA: 0x%08lX\n", 3183 (unsigned long)inta & IPW_INTERRUPT_MASK); 3184 3185 if (inta & IPW2100_INTA_FATAL_ERROR) { 3186 printk(KERN_WARNING DRV_NAME 3187 ": Fatal interrupt. Scheduling firmware restart.\n"); 3188 priv->inta_other++; 3189 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR); 3190 3191 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error); 3192 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n", 3193 priv->net_dev->name, priv->fatal_error); 3194 3195 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp); 3196 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n", 3197 priv->net_dev->name, tmp); 3198 3199 /* Wake up any sleeping jobs */ 3200 schedule_reset(priv); 3201 } 3202 3203 if (inta & IPW2100_INTA_PARITY_ERROR) { 3204 printk(KERN_ERR DRV_NAME 3205 ": ***** PARITY ERROR INTERRUPT !!!! \n"); 3206 priv->inta_other++; 3207 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR); 3208 } 3209 3210 if (inta & IPW2100_INTA_RX_TRANSFER) { 3211 IPW_DEBUG_ISR("RX interrupt\n"); 3212 3213 priv->rx_interrupts++; 3214 3215 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER); 3216 3217 __ipw2100_rx_process(priv); 3218 __ipw2100_tx_complete(priv); 3219 } 3220 3221 if (inta & IPW2100_INTA_TX_TRANSFER) { 3222 IPW_DEBUG_ISR("TX interrupt\n"); 3223 3224 priv->tx_interrupts++; 3225 3226 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER); 3227 3228 __ipw2100_tx_complete(priv); 3229 ipw2100_tx_send_commands(priv); 3230 ipw2100_tx_send_data(priv); 3231 } 3232 3233 if (inta & IPW2100_INTA_TX_COMPLETE) { 3234 IPW_DEBUG_ISR("TX complete\n"); 3235 priv->inta_other++; 3236 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE); 3237 3238 __ipw2100_tx_complete(priv); 3239 } 3240 3241 if (inta & IPW2100_INTA_EVENT_INTERRUPT) { 3242 /* ipw2100_handle_event(dev); */ 3243 priv->inta_other++; 3244 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT); 3245 } 3246 3247 if (inta & IPW2100_INTA_FW_INIT_DONE) { 3248 IPW_DEBUG_ISR("FW init done interrupt\n"); 3249 priv->inta_other++; 3250 3251 read_register(dev, IPW_REG_INTA, &tmp); 3252 if (tmp & (IPW2100_INTA_FATAL_ERROR | 3253 IPW2100_INTA_PARITY_ERROR)) { 3254 write_register(dev, IPW_REG_INTA, 3255 IPW2100_INTA_FATAL_ERROR | 3256 IPW2100_INTA_PARITY_ERROR); 3257 } 3258 3259 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE); 3260 } 3261 3262 if (inta & IPW2100_INTA_STATUS_CHANGE) { 3263 IPW_DEBUG_ISR("Status change interrupt\n"); 3264 priv->inta_other++; 3265 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE); 3266 } 3267 3268 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) { 3269 IPW_DEBUG_ISR("slave host mode interrupt\n"); 3270 priv->inta_other++; 3271 write_register(dev, IPW_REG_INTA, 3272 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE); 3273 } 3274 3275 priv->in_isr--; 3276 ipw2100_enable_interrupts(priv); 3277 3278 spin_unlock_irqrestore(&priv->low_lock, flags); 3279 3280 IPW_DEBUG_ISR("exit\n"); 3281} 3282 3283static irqreturn_t ipw2100_interrupt(int irq, void *data) 3284{ 3285 struct ipw2100_priv *priv = data; 3286 u32 inta, inta_mask; 3287 3288 if (!data) 3289 return IRQ_NONE; 3290 3291 spin_lock(&priv->low_lock); 3292 3293 /* We check to see if we should be ignoring interrupts before 3294 * we touch the hardware. During ucode load if we try and handle 3295 * an interrupt we can cause keyboard problems as well as cause 3296 * the ucode to fail to initialize */ 3297 if (!(priv->status & STATUS_INT_ENABLED)) { 3298 /* Shared IRQ */ 3299 goto none; 3300 } 3301 3302 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask); 3303 read_register(priv->net_dev, IPW_REG_INTA, &inta); 3304 3305 if (inta == 0xFFFFFFFF) { 3306 /* Hardware disappeared */ 3307 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n"); 3308 goto none; 3309 } 3310 3311 inta &= IPW_INTERRUPT_MASK; 3312 3313 if (!(inta & inta_mask)) { 3314 /* Shared interrupt */ 3315 goto none; 3316 } 3317 3318 /* We disable the hardware interrupt here just to prevent unneeded 3319 * calls to be made. We disable this again within the actual 3320 * work tasklet, so if another part of the code re-enables the 3321 * interrupt, that is fine */ 3322 ipw2100_disable_interrupts(priv); 3323 3324 tasklet_schedule(&priv->irq_tasklet); 3325 spin_unlock(&priv->low_lock); 3326 3327 return IRQ_HANDLED; 3328 none: 3329 spin_unlock(&priv->low_lock); 3330 return IRQ_NONE; 3331} 3332 3333static netdev_tx_t ipw2100_tx(struct libipw_txb *txb, 3334 struct net_device *dev, int pri) 3335{ 3336 struct ipw2100_priv *priv = libipw_priv(dev); 3337 struct list_head *element; 3338 struct ipw2100_tx_packet *packet; 3339 unsigned long flags; 3340 3341 spin_lock_irqsave(&priv->low_lock, flags); 3342 3343 if (!(priv->status & STATUS_ASSOCIATED)) { 3344 IPW_DEBUG_INFO("Can not transmit when not connected.\n"); 3345 priv->net_dev->stats.tx_carrier_errors++; 3346 netif_stop_queue(dev); 3347 goto fail_unlock; 3348 } 3349 3350 if (list_empty(&priv->tx_free_list)) 3351 goto fail_unlock; 3352 3353 element = priv->tx_free_list.next; 3354 packet = list_entry(element, struct ipw2100_tx_packet, list); 3355 3356 packet->info.d_struct.txb = txb; 3357 3358 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len); 3359 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len); 3360 3361 packet->jiffy_start = jiffies; 3362 3363 list_del(element); 3364 DEC_STAT(&priv->tx_free_stat); 3365 3366 list_add_tail(element, &priv->tx_pend_list); 3367 INC_STAT(&priv->tx_pend_stat); 3368 3369 ipw2100_tx_send_data(priv); 3370 3371 spin_unlock_irqrestore(&priv->low_lock, flags); 3372 return NETDEV_TX_OK; 3373 3374fail_unlock: 3375 netif_stop_queue(dev); 3376 spin_unlock_irqrestore(&priv->low_lock, flags); 3377 return NETDEV_TX_BUSY; 3378} 3379 3380static int ipw2100_msg_allocate(struct ipw2100_priv *priv) 3381{ 3382 int i, j, err = -EINVAL; 3383 void *v; 3384 dma_addr_t p; 3385 3386 priv->msg_buffers = 3387 (struct ipw2100_tx_packet *)kmalloc(IPW_COMMAND_POOL_SIZE * 3388 sizeof(struct 3389 ipw2100_tx_packet), 3390 GFP_KERNEL); 3391 if (!priv->msg_buffers) { 3392 printk(KERN_ERR DRV_NAME ": %s: PCI alloc failed for msg " 3393 "buffers.\n", priv->net_dev->name); 3394 return -ENOMEM; 3395 } 3396 3397 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) { 3398 v = pci_alloc_consistent(priv->pci_dev, 3399 sizeof(struct ipw2100_cmd_header), &p); 3400 if (!v) { 3401 printk(KERN_ERR DRV_NAME ": " 3402 "%s: PCI alloc failed for msg " 3403 "buffers.\n", priv->net_dev->name); 3404 err = -ENOMEM; 3405 break; 3406 } 3407 3408 memset(v, 0, sizeof(struct ipw2100_cmd_header)); 3409 3410 priv->msg_buffers[i].type = COMMAND; 3411 priv->msg_buffers[i].info.c_struct.cmd = 3412 (struct ipw2100_cmd_header *)v; 3413 priv->msg_buffers[i].info.c_struct.cmd_phys = p; 3414 } 3415 3416 if (i == IPW_COMMAND_POOL_SIZE) 3417 return 0; 3418 3419 for (j = 0; j < i; j++) { 3420 pci_free_consistent(priv->pci_dev, 3421 sizeof(struct ipw2100_cmd_header), 3422 priv->msg_buffers[j].info.c_struct.cmd, 3423 priv->msg_buffers[j].info.c_struct. 3424 cmd_phys); 3425 } 3426 3427 kfree(priv->msg_buffers); 3428 priv->msg_buffers = NULL; 3429 3430 return err; 3431} 3432 3433static int ipw2100_msg_initialize(struct ipw2100_priv *priv) 3434{ 3435 int i; 3436 3437 INIT_LIST_HEAD(&priv->msg_free_list); 3438 INIT_LIST_HEAD(&priv->msg_pend_list); 3439 3440 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) 3441 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list); 3442 SET_STAT(&priv->msg_free_stat, i); 3443 3444 return 0; 3445} 3446 3447static void ipw2100_msg_free(struct ipw2100_priv *priv) 3448{ 3449 int i; 3450 3451 if (!priv->msg_buffers) 3452 return; 3453 3454 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) { 3455 pci_free_consistent(priv->pci_dev, 3456 sizeof(struct ipw2100_cmd_header), 3457 priv->msg_buffers[i].info.c_struct.cmd, 3458 priv->msg_buffers[i].info.c_struct. 3459 cmd_phys); 3460 } 3461 3462 kfree(priv->msg_buffers); 3463 priv->msg_buffers = NULL; 3464} 3465 3466static ssize_t show_pci(struct device *d, struct device_attribute *attr, 3467 char *buf) 3468{ 3469 struct pci_dev *pci_dev = container_of(d, struct pci_dev, dev); 3470 char *out = buf; 3471 int i, j; 3472 u32 val; 3473 3474 for (i = 0; i < 16; i++) { 3475 out += sprintf(out, "[%08X] ", i * 16); 3476 for (j = 0; j < 16; j += 4) { 3477 pci_read_config_dword(pci_dev, i * 16 + j, &val); 3478 out += sprintf(out, "%08X ", val); 3479 } 3480 out += sprintf(out, "\n"); 3481 } 3482 3483 return out - buf; 3484} 3485 3486static DEVICE_ATTR(pci, S_IRUGO, show_pci, NULL); 3487 3488static ssize_t show_cfg(struct device *d, struct device_attribute *attr, 3489 char *buf) 3490{ 3491 struct ipw2100_priv *p = dev_get_drvdata(d); 3492 return sprintf(buf, "0x%08x\n", (int)p->config); 3493} 3494 3495static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL); 3496 3497static ssize_t show_status(struct device *d, struct device_attribute *attr, 3498 char *buf) 3499{ 3500 struct ipw2100_priv *p = dev_get_drvdata(d); 3501 return sprintf(buf, "0x%08x\n", (int)p->status); 3502} 3503 3504static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); 3505 3506static ssize_t show_capability(struct device *d, struct device_attribute *attr, 3507 char *buf) 3508{ 3509 struct ipw2100_priv *p = dev_get_drvdata(d); 3510 return sprintf(buf, "0x%08x\n", (int)p->capability); 3511} 3512 3513static DEVICE_ATTR(capability, S_IRUGO, show_capability, NULL); 3514 3515#define IPW2100_REG(x) { IPW_ ##x, #x } 3516static const struct { 3517 u32 addr; 3518 const char *name; 3519} hw_data[] = { 3520IPW2100_REG(REG_GP_CNTRL), 3521 IPW2100_REG(REG_GPIO), 3522 IPW2100_REG(REG_INTA), 3523 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),}; 3524#define IPW2100_NIC(x, s) { x, #x, s } 3525static const struct { 3526 u32 addr; 3527 const char *name; 3528 size_t size; 3529} nic_data[] = { 3530IPW2100_NIC(IPW2100_CONTROL_REG, 2), 3531 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),}; 3532#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d } 3533static const struct { 3534 u8 index; 3535 const char *name; 3536 const char *desc; 3537} ord_data[] = { 3538IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"), 3539 IPW2100_ORD(STAT_TX_HOST_COMPLETE, 3540 "successful Host Tx's (MSDU)"), 3541 IPW2100_ORD(STAT_TX_DIR_DATA, 3542 "successful Directed Tx's (MSDU)"), 3543 IPW2100_ORD(STAT_TX_DIR_DATA1, 3544 "successful Directed Tx's (MSDU) @ 1MB"), 3545 IPW2100_ORD(STAT_TX_DIR_DATA2, 3546 "successful Directed Tx's (MSDU) @ 2MB"), 3547 IPW2100_ORD(STAT_TX_DIR_DATA5_5, 3548 "successful Directed Tx's (MSDU) @ 5_5MB"), 3549 IPW2100_ORD(STAT_TX_DIR_DATA11, 3550 "successful Directed Tx's (MSDU) @ 11MB"), 3551 IPW2100_ORD(STAT_TX_NODIR_DATA1, 3552 "successful Non_Directed Tx's (MSDU) @ 1MB"), 3553 IPW2100_ORD(STAT_TX_NODIR_DATA2, 3554 "successful Non_Directed Tx's (MSDU) @ 2MB"), 3555 IPW2100_ORD(STAT_TX_NODIR_DATA5_5, 3556 "successful Non_Directed Tx's (MSDU) @ 5.5MB"), 3557 IPW2100_ORD(STAT_TX_NODIR_DATA11, 3558 "successful Non_Directed Tx's (MSDU) @ 11MB"), 3559 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"), 3560 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"), 3561 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"), 3562 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"), 3563 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"), 3564 IPW2100_ORD(STAT_TX_ASSN_RESP, 3565 "successful Association response Tx's"), 3566 IPW2100_ORD(STAT_TX_REASSN, 3567 "successful Reassociation Tx's"), 3568 IPW2100_ORD(STAT_TX_REASSN_RESP, 3569 "successful Reassociation response Tx's"), 3570 IPW2100_ORD(STAT_TX_PROBE, 3571 "probes successfully transmitted"), 3572 IPW2100_ORD(STAT_TX_PROBE_RESP, 3573 "probe responses successfully transmitted"), 3574 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"), 3575 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"), 3576 IPW2100_ORD(STAT_TX_DISASSN, 3577 "successful Disassociation TX"), 3578 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"), 3579 IPW2100_ORD(STAT_TX_DEAUTH, 3580 "successful Deauthentication TX"), 3581 IPW2100_ORD(STAT_TX_TOTAL_BYTES, 3582 "Total successful Tx data bytes"), 3583 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"), 3584 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"), 3585 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"), 3586 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"), 3587 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"), 3588 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"), 3589 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP, 3590 "times max tries in a hop failed"), 3591 IPW2100_ORD(STAT_TX_DISASSN_FAIL, 3592 "times disassociation failed"), 3593 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"), 3594 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"), 3595 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"), 3596 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"), 3597 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"), 3598 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"), 3599 IPW2100_ORD(STAT_RX_DIR_DATA5_5, 3600 "directed packets at 5.5MB"), 3601 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"), 3602 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"), 3603 IPW2100_ORD(STAT_RX_NODIR_DATA1, 3604 "nondirected packets at 1MB"), 3605 IPW2100_ORD(STAT_RX_NODIR_DATA2, 3606 "nondirected packets at 2MB"), 3607 IPW2100_ORD(STAT_RX_NODIR_DATA5_5, 3608 "nondirected packets at 5.5MB"), 3609 IPW2100_ORD(STAT_RX_NODIR_DATA11, 3610 "nondirected packets at 11MB"), 3611 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"), 3612 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS, 3613 "Rx CTS"), 3614 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"), 3615 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"), 3616 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"), 3617 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"), 3618 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"), 3619 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"), 3620 IPW2100_ORD(STAT_RX_REASSN_RESP, 3621 "Reassociation response Rx's"), 3622 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"), 3623 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"), 3624 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"), 3625 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"), 3626 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"), 3627 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"), 3628 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"), 3629 IPW2100_ORD(STAT_RX_TOTAL_BYTES, 3630 "Total rx data bytes received"), 3631 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"), 3632 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"), 3633 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"), 3634 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"), 3635 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"), 3636 IPW2100_ORD(STAT_RX_DUPLICATE1, 3637 "duplicate rx packets at 1MB"), 3638 IPW2100_ORD(STAT_RX_DUPLICATE2, 3639 "duplicate rx packets at 2MB"), 3640 IPW2100_ORD(STAT_RX_DUPLICATE5_5, 3641 "duplicate rx packets at 5.5MB"), 3642 IPW2100_ORD(STAT_RX_DUPLICATE11, 3643 "duplicate rx packets at 11MB"), 3644 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"), 3645 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"), 3646 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"), 3647 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"), 3648 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL, 3649 "rx frames with invalid protocol"), 3650 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"), 3651 IPW2100_ORD(STAT_RX_NO_BUFFER, 3652 "rx frames rejected due to no buffer"), 3653 IPW2100_ORD(STAT_RX_MISSING_FRAG, 3654 "rx frames dropped due to missing fragment"), 3655 IPW2100_ORD(STAT_RX_ORPHAN_FRAG, 3656 "rx frames dropped due to non-sequential fragment"), 3657 IPW2100_ORD(STAT_RX_ORPHAN_FRAME, 3658 "rx frames dropped due to unmatched 1st frame"), 3659 IPW2100_ORD(STAT_RX_FRAG_AGEOUT, 3660 "rx frames dropped due to uncompleted frame"), 3661 IPW2100_ORD(STAT_RX_ICV_ERRORS, 3662 "ICV errors during decryption"), 3663 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"), 3664 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"), 3665 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT, 3666 "poll response timeouts"), 3667 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT, 3668 "timeouts waiting for last {broad,multi}cast pkt"), 3669 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"), 3670 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"), 3671 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"), 3672 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"), 3673 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS, 3674 "current calculation of % missed beacons"), 3675 IPW2100_ORD(STAT_PERCENT_RETRIES, 3676 "current calculation of % missed tx retries"), 3677 IPW2100_ORD(ASSOCIATED_AP_PTR, 3678 "0 if not associated, else pointer to AP table entry"), 3679 IPW2100_ORD(AVAILABLE_AP_CNT, 3680 "AP's decsribed in the AP table"), 3681 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"), 3682 IPW2100_ORD(STAT_AP_ASSNS, "associations"), 3683 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"), 3684 IPW2100_ORD(STAT_ASSN_RESP_FAIL, 3685 "failures due to response fail"), 3686 IPW2100_ORD(STAT_FULL_SCANS, "full scans"), 3687 IPW2100_ORD(CARD_DISABLED, "Card Disabled"), 3688 IPW2100_ORD(STAT_ROAM_INHIBIT, 3689 "times roaming was inhibited due to activity"), 3690 IPW2100_ORD(RSSI_AT_ASSN, 3691 "RSSI of associated AP at time of association"), 3692 IPW2100_ORD(STAT_ASSN_CAUSE1, 3693 "reassociation: no probe response or TX on hop"), 3694 IPW2100_ORD(STAT_ASSN_CAUSE2, 3695 "reassociation: poor tx/rx quality"), 3696 IPW2100_ORD(STAT_ASSN_CAUSE3, 3697 "reassociation: tx/rx quality (excessive AP load"), 3698 IPW2100_ORD(STAT_ASSN_CAUSE4, 3699 "reassociation: AP RSSI level"), 3700 IPW2100_ORD(STAT_ASSN_CAUSE5, 3701 "reassociations due to load leveling"), 3702 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"), 3703 IPW2100_ORD(STAT_AUTH_RESP_FAIL, 3704 "times authentication response failed"), 3705 IPW2100_ORD(STATION_TABLE_CNT, 3706 "entries in association table"), 3707 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"), 3708 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"), 3709 IPW2100_ORD(COUNTRY_CODE, 3710 "IEEE country code as recv'd from beacon"), 3711 IPW2100_ORD(COUNTRY_CHANNELS, 3712 "channels suported by country"), 3713 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"), 3714 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"), 3715 IPW2100_ORD(ANTENNA_DIVERSITY, 3716 "TRUE if antenna diversity is disabled"), 3717 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"), 3718 IPW2100_ORD(OUR_FREQ, 3719 "current radio freq lower digits - channel ID"), 3720 IPW2100_ORD(RTC_TIME, "current RTC time"), 3721 IPW2100_ORD(PORT_TYPE, "operating mode"), 3722 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"), 3723 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"), 3724 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"), 3725 IPW2100_ORD(BASIC_RATES, "basic tx rates"), 3726 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"), 3727 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"), 3728 IPW2100_ORD(CAPABILITIES, 3729 "Management frame capability field"), 3730 IPW2100_ORD(AUTH_TYPE, "Type of authentication"), 3731 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"), 3732 IPW2100_ORD(RTS_THRESHOLD, 3733 "Min packet length for RTS handshaking"), 3734 IPW2100_ORD(INT_MODE, "International mode"), 3735 IPW2100_ORD(FRAGMENTATION_THRESHOLD, 3736 "protocol frag threshold"), 3737 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS, 3738 "EEPROM offset in SRAM"), 3739 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE, 3740 "EEPROM size in SRAM"), 3741 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"), 3742 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS, 3743 "EEPROM IBSS 11b channel set"), 3744 IPW2100_ORD(MAC_VERSION, "MAC Version"), 3745 IPW2100_ORD(MAC_REVISION, "MAC Revision"), 3746 IPW2100_ORD(RADIO_VERSION, "Radio Version"), 3747 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"), 3748 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),}; 3749 3750static ssize_t show_registers(struct device *d, struct device_attribute *attr, 3751 char *buf) 3752{ 3753 int i; 3754 struct ipw2100_priv *priv = dev_get_drvdata(d); 3755 struct net_device *dev = priv->net_dev; 3756 char *out = buf; 3757 u32 val = 0; 3758 3759 out += sprintf(out, "%30s [Address ] : Hex\n", "Register"); 3760 3761 for (i = 0; i < ARRAY_SIZE(hw_data); i++) { 3762 read_register(dev, hw_data[i].addr, &val); 3763 out += sprintf(out, "%30s [%08X] : %08X\n", 3764 hw_data[i].name, hw_data[i].addr, val); 3765 } 3766 3767 return out - buf; 3768} 3769 3770static DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL); 3771 3772static ssize_t show_hardware(struct device *d, struct device_attribute *attr, 3773 char *buf) 3774{ 3775 struct ipw2100_priv *priv = dev_get_drvdata(d); 3776 struct net_device *dev = priv->net_dev; 3777 char *out = buf; 3778 int i; 3779 3780 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry"); 3781 3782 for (i = 0; i < ARRAY_SIZE(nic_data); i++) { 3783 u8 tmp8; 3784 u16 tmp16; 3785 u32 tmp32; 3786 3787 switch (nic_data[i].size) { 3788 case 1: 3789 read_nic_byte(dev, nic_data[i].addr, &tmp8); 3790 out += sprintf(out, "%30s [%08X] : %02X\n", 3791 nic_data[i].name, nic_data[i].addr, 3792 tmp8); 3793 break; 3794 case 2: 3795 read_nic_word(dev, nic_data[i].addr, &tmp16); 3796 out += sprintf(out, "%30s [%08X] : %04X\n", 3797 nic_data[i].name, nic_data[i].addr, 3798 tmp16); 3799 break; 3800 case 4: 3801 read_nic_dword(dev, nic_data[i].addr, &tmp32); 3802 out += sprintf(out, "%30s [%08X] : %08X\n", 3803 nic_data[i].name, nic_data[i].addr, 3804 tmp32); 3805 break; 3806 } 3807 } 3808 return out - buf; 3809} 3810 3811static DEVICE_ATTR(hardware, S_IRUGO, show_hardware, NULL); 3812 3813static ssize_t show_memory(struct device *d, struct device_attribute *attr, 3814 char *buf) 3815{ 3816 struct ipw2100_priv *priv = dev_get_drvdata(d); 3817 struct net_device *dev = priv->net_dev; 3818 static unsigned long loop = 0; 3819 int len = 0; 3820 u32 buffer[4]; 3821 int i; 3822 char line[81]; 3823 3824 if (loop >= 0x30000) 3825 loop = 0; 3826 3827 /* sysfs provides us PAGE_SIZE buffer */ 3828 while (len < PAGE_SIZE - 128 && loop < 0x30000) { 3829 3830 if (priv->snapshot[0]) 3831 for (i = 0; i < 4; i++) 3832 buffer[i] = 3833 *(u32 *) SNAPSHOT_ADDR(loop + i * 4); 3834 else 3835 for (i = 0; i < 4; i++) 3836 read_nic_dword(dev, loop + i * 4, &buffer[i]); 3837 3838 if (priv->dump_raw) 3839 len += sprintf(buf + len, 3840 "%c%c%c%c" 3841 "%c%c%c%c" 3842 "%c%c%c%c" 3843 "%c%c%c%c", 3844 ((u8 *) buffer)[0x0], 3845 ((u8 *) buffer)[0x1], 3846 ((u8 *) buffer)[0x2], 3847 ((u8 *) buffer)[0x3], 3848 ((u8 *) buffer)[0x4], 3849 ((u8 *) buffer)[0x5], 3850 ((u8 *) buffer)[0x6], 3851 ((u8 *) buffer)[0x7], 3852 ((u8 *) buffer)[0x8], 3853 ((u8 *) buffer)[0x9], 3854 ((u8 *) buffer)[0xa], 3855 ((u8 *) buffer)[0xb], 3856 ((u8 *) buffer)[0xc], 3857 ((u8 *) buffer)[0xd], 3858 ((u8 *) buffer)[0xe], 3859 ((u8 *) buffer)[0xf]); 3860 else 3861 len += sprintf(buf + len, "%s\n", 3862 snprint_line(line, sizeof(line), 3863 (u8 *) buffer, 16, loop)); 3864 loop += 16; 3865 } 3866 3867 return len; 3868} 3869 3870static ssize_t store_memory(struct device *d, struct device_attribute *attr, 3871 const char *buf, size_t count) 3872{ 3873 struct ipw2100_priv *priv = dev_get_drvdata(d); 3874 struct net_device *dev = priv->net_dev; 3875 const char *p = buf; 3876 3877 (void)dev; /* kill unused-var warning for debug-only code */ 3878 3879 if (count < 1) 3880 return count; 3881 3882 if (p[0] == '1' || 3883 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) { 3884 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n", 3885 dev->name); 3886 priv->dump_raw = 1; 3887 3888 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' && 3889 tolower(p[1]) == 'f')) { 3890 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n", 3891 dev->name); 3892 priv->dump_raw = 0; 3893 3894 } else if (tolower(p[0]) == 'r') { 3895 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name); 3896 ipw2100_snapshot_free(priv); 3897 3898 } else 3899 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, " 3900 "reset = clear memory snapshot\n", dev->name); 3901 3902 return count; 3903} 3904 3905static DEVICE_ATTR(memory, S_IWUSR | S_IRUGO, show_memory, store_memory); 3906 3907static ssize_t show_ordinals(struct device *d, struct device_attribute *attr, 3908 char *buf) 3909{ 3910 struct ipw2100_priv *priv = dev_get_drvdata(d); 3911 u32 val = 0; 3912 int len = 0; 3913 u32 val_len; 3914 static int loop = 0; 3915 3916 if (priv->status & STATUS_RF_KILL_MASK) 3917 return 0; 3918 3919 if (loop >= ARRAY_SIZE(ord_data)) 3920 loop = 0; 3921 3922 /* sysfs provides us PAGE_SIZE buffer */ 3923 while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) { 3924 val_len = sizeof(u32); 3925 3926 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val, 3927 &val_len)) 3928 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n", 3929 ord_data[loop].index, 3930 ord_data[loop].desc); 3931 else 3932 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n", 3933 ord_data[loop].index, val, 3934 ord_data[loop].desc); 3935 loop++; 3936 } 3937 3938 return len; 3939} 3940 3941static DEVICE_ATTR(ordinals, S_IRUGO, show_ordinals, NULL); 3942 3943static ssize_t show_stats(struct device *d, struct device_attribute *attr, 3944 char *buf) 3945{ 3946 struct ipw2100_priv *priv = dev_get_drvdata(d); 3947 char *out = buf; 3948 3949 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n", 3950 priv->interrupts, priv->tx_interrupts, 3951 priv->rx_interrupts, priv->inta_other); 3952 out += sprintf(out, "firmware resets: %d\n", priv->resets); 3953 out += sprintf(out, "firmware hangs: %d\n", priv->hangs); 3954#ifdef CONFIG_IPW2100_DEBUG 3955 out += sprintf(out, "packet mismatch image: %s\n", 3956 priv->snapshot[0] ? "YES" : "NO"); 3957#endif 3958 3959 return out - buf; 3960} 3961 3962static DEVICE_ATTR(stats, S_IRUGO, show_stats, NULL); 3963 3964static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode) 3965{ 3966 int err; 3967 3968 if (mode == priv->ieee->iw_mode) 3969 return 0; 3970 3971 err = ipw2100_disable_adapter(priv); 3972 if (err) { 3973 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n", 3974 priv->net_dev->name, err); 3975 return err; 3976 } 3977 3978 switch (mode) { 3979 case IW_MODE_INFRA: 3980 priv->net_dev->type = ARPHRD_ETHER; 3981 break; 3982 case IW_MODE_ADHOC: 3983 priv->net_dev->type = ARPHRD_ETHER; 3984 break; 3985#ifdef CONFIG_IPW2100_MONITOR 3986 case IW_MODE_MONITOR: 3987 priv->last_mode = priv->ieee->iw_mode; 3988 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; 3989 break; 3990#endif /* CONFIG_IPW2100_MONITOR */ 3991 } 3992 3993 priv->ieee->iw_mode = mode; 3994 3995#ifdef CONFIG_PM 3996 /* Indicate ipw2100_download_firmware download firmware 3997 * from disk instead of memory. */ 3998 ipw2100_firmware.version = 0; 3999#endif 4000 4001 printk(KERN_INFO "%s: Reseting on mode change.\n", priv->net_dev->name); 4002 priv->reset_backoff = 0; 4003 schedule_reset(priv); 4004 4005 return 0; 4006} 4007 4008static ssize_t show_internals(struct device *d, struct device_attribute *attr, 4009 char *buf) 4010{ 4011 struct ipw2100_priv *priv = dev_get_drvdata(d); 4012 int len = 0; 4013 4014#define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x) 4015 4016 if (priv->status & STATUS_ASSOCIATED) 4017 len += sprintf(buf + len, "connected: %lu\n", 4018 get_seconds() - priv->connect_start); 4019 else 4020 len += sprintf(buf + len, "not connected\n"); 4021 4022 DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p"); 4023 DUMP_VAR(status, "08lx"); 4024 DUMP_VAR(config, "08lx"); 4025 DUMP_VAR(capability, "08lx"); 4026 4027 len += 4028 sprintf(buf + len, "last_rtc: %lu\n", 4029 (unsigned long)priv->last_rtc); 4030 4031 DUMP_VAR(fatal_error, "d"); 4032 DUMP_VAR(stop_hang_check, "d"); 4033 DUMP_VAR(stop_rf_kill, "d"); 4034 DUMP_VAR(messages_sent, "d"); 4035 4036 DUMP_VAR(tx_pend_stat.value, "d"); 4037 DUMP_VAR(tx_pend_stat.hi, "d"); 4038 4039 DUMP_VAR(tx_free_stat.value, "d"); 4040 DUMP_VAR(tx_free_stat.lo, "d"); 4041 4042 DUMP_VAR(msg_free_stat.value, "d"); 4043 DUMP_VAR(msg_free_stat.lo, "d"); 4044 4045 DUMP_VAR(msg_pend_stat.value, "d"); 4046 DUMP_VAR(msg_pend_stat.hi, "d"); 4047 4048 DUMP_VAR(fw_pend_stat.value, "d"); 4049 DUMP_VAR(fw_pend_stat.hi, "d"); 4050 4051 DUMP_VAR(txq_stat.value, "d"); 4052 DUMP_VAR(txq_stat.lo, "d"); 4053 4054 DUMP_VAR(ieee->scans, "d"); 4055 DUMP_VAR(reset_backoff, "d"); 4056 4057 return len; 4058} 4059 4060static DEVICE_ATTR(internals, S_IRUGO, show_internals, NULL); 4061 4062static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr, 4063 char *buf) 4064{ 4065 struct ipw2100_priv *priv = dev_get_drvdata(d); 4066 char essid[IW_ESSID_MAX_SIZE + 1]; 4067 u8 bssid[ETH_ALEN]; 4068 u32 chan = 0; 4069 char *out = buf; 4070 unsigned int length; 4071 int ret; 4072 4073 if (priv->status & STATUS_RF_KILL_MASK) 4074 return 0; 4075 4076 memset(essid, 0, sizeof(essid)); 4077 memset(bssid, 0, sizeof(bssid)); 4078 4079 length = IW_ESSID_MAX_SIZE; 4080 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length); 4081 if (ret) 4082 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 4083 __LINE__); 4084 4085 length = sizeof(bssid); 4086 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, 4087 bssid, &length); 4088 if (ret) 4089 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 4090 __LINE__); 4091 4092 length = sizeof(u32); 4093 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length); 4094 if (ret) 4095 IPW_DEBUG_INFO("failed querying ordinals at line %d\n", 4096 __LINE__); 4097 4098 out += sprintf(out, "ESSID: %s\n", essid); 4099 out += sprintf(out, "BSSID: %pM\n", bssid); 4100 out += sprintf(out, "Channel: %d\n", chan); 4101 4102 return out - buf; 4103} 4104 4105static DEVICE_ATTR(bssinfo, S_IRUGO, show_bssinfo, NULL); 4106 4107#ifdef CONFIG_IPW2100_DEBUG 4108static ssize_t show_debug_level(struct device_driver *d, char *buf) 4109{ 4110 return sprintf(buf, "0x%08X\n", ipw2100_debug_level); 4111} 4112 4113static ssize_t store_debug_level(struct device_driver *d, 4114 const char *buf, size_t count) 4115{ 4116 char *p = (char *)buf; 4117 u32 val; 4118 4119 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 4120 p++; 4121 if (p[0] == 'x' || p[0] == 'X') 4122 p++; 4123 val = simple_strtoul(p, &p, 16); 4124 } else 4125 val = simple_strtoul(p, &p, 10); 4126 if (p == buf) 4127 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf); 4128 else 4129 ipw2100_debug_level = val; 4130 4131 return strnlen(buf, count); 4132} 4133 4134static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, show_debug_level, 4135 store_debug_level); 4136#endif /* CONFIG_IPW2100_DEBUG */ 4137 4138static ssize_t show_fatal_error(struct device *d, 4139 struct device_attribute *attr, char *buf) 4140{ 4141 struct ipw2100_priv *priv = dev_get_drvdata(d); 4142 char *out = buf; 4143 int i; 4144 4145 if (priv->fatal_error) 4146 out += sprintf(out, "0x%08X\n", priv->fatal_error); 4147 else 4148 out += sprintf(out, "0\n"); 4149 4150 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) { 4151 if (!priv->fatal_errors[(priv->fatal_index - i) % 4152 IPW2100_ERROR_QUEUE]) 4153 continue; 4154 4155 out += sprintf(out, "%d. 0x%08X\n", i, 4156 priv->fatal_errors[(priv->fatal_index - i) % 4157 IPW2100_ERROR_QUEUE]); 4158 } 4159 4160 return out - buf; 4161} 4162 4163static ssize_t store_fatal_error(struct device *d, 4164 struct device_attribute *attr, const char *buf, 4165 size_t count) 4166{ 4167 struct ipw2100_priv *priv = dev_get_drvdata(d); 4168 schedule_reset(priv); 4169 return count; 4170} 4171 4172static DEVICE_ATTR(fatal_error, S_IWUSR | S_IRUGO, show_fatal_error, 4173 store_fatal_error); 4174 4175static ssize_t show_scan_age(struct device *d, struct device_attribute *attr, 4176 char *buf) 4177{ 4178 struct ipw2100_priv *priv = dev_get_drvdata(d); 4179 return sprintf(buf, "%d\n", priv->ieee->scan_age); 4180} 4181 4182static ssize_t store_scan_age(struct device *d, struct device_attribute *attr, 4183 const char *buf, size_t count) 4184{ 4185 struct ipw2100_priv *priv = dev_get_drvdata(d); 4186 struct net_device *dev = priv->net_dev; 4187 char buffer[] = "00000000"; 4188 unsigned long len = 4189 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1; 4190 unsigned long val; 4191 char *p = buffer; 4192 4193 (void)dev; /* kill unused-var warning for debug-only code */ 4194 4195 IPW_DEBUG_INFO("enter\n"); 4196 4197 strncpy(buffer, buf, len); 4198 buffer[len] = 0; 4199 4200 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 4201 p++; 4202 if (p[0] == 'x' || p[0] == 'X') 4203 p++; 4204 val = simple_strtoul(p, &p, 16); 4205 } else 4206 val = simple_strtoul(p, &p, 10); 4207 if (p == buffer) { 4208 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name); 4209 } else { 4210 priv->ieee->scan_age = val; 4211 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age); 4212 } 4213 4214 IPW_DEBUG_INFO("exit\n"); 4215 return len; 4216} 4217 4218static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age); 4219 4220static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr, 4221 char *buf) 4222{ 4223 /* 0 - RF kill not enabled 4224 1 - SW based RF kill active (sysfs) 4225 2 - HW based RF kill active 4226 3 - Both HW and SW baed RF kill active */ 4227 struct ipw2100_priv *priv = dev_get_drvdata(d); 4228 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) | 4229 (rf_kill_active(priv) ? 0x2 : 0x0); 4230 return sprintf(buf, "%i\n", val); 4231} 4232 4233static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio) 4234{ 4235 if ((disable_radio ? 1 : 0) == 4236 (priv->status & STATUS_RF_KILL_SW ? 1 : 0)) 4237 return 0; 4238 4239 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n", 4240 disable_radio ? "OFF" : "ON"); 4241 4242 mutex_lock(&priv->action_mutex); 4243 4244 if (disable_radio) { 4245 priv->status |= STATUS_RF_KILL_SW; 4246 ipw2100_down(priv); 4247 } else { 4248 priv->status &= ~STATUS_RF_KILL_SW; 4249 if (rf_kill_active(priv)) { 4250 IPW_DEBUG_RF_KILL("Can not turn radio back on - " 4251 "disabled by HW switch\n"); 4252 /* Make sure the RF_KILL check timer is running */ 4253 priv->stop_rf_kill = 0; 4254 cancel_delayed_work(&priv->rf_kill); 4255 queue_delayed_work(priv->workqueue, &priv->rf_kill, 4256 round_jiffies_relative(HZ)); 4257 } else 4258 schedule_reset(priv); 4259 } 4260 4261 mutex_unlock(&priv->action_mutex); 4262 return 1; 4263} 4264 4265static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr, 4266 const char *buf, size_t count) 4267{ 4268 struct ipw2100_priv *priv = dev_get_drvdata(d); 4269 ipw_radio_kill_sw(priv, buf[0] == '1'); 4270 return count; 4271} 4272 4273static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill); 4274 4275static struct attribute *ipw2100_sysfs_entries[] = { 4276 &dev_attr_hardware.attr, 4277 &dev_attr_registers.attr, 4278 &dev_attr_ordinals.attr, 4279 &dev_attr_pci.attr, 4280 &dev_attr_stats.attr, 4281 &dev_attr_internals.attr, 4282 &dev_attr_bssinfo.attr, 4283 &dev_attr_memory.attr, 4284 &dev_attr_scan_age.attr, 4285 &dev_attr_fatal_error.attr, 4286 &dev_attr_rf_kill.attr, 4287 &dev_attr_cfg.attr, 4288 &dev_attr_status.attr, 4289 &dev_attr_capability.attr, 4290 NULL, 4291}; 4292 4293static struct attribute_group ipw2100_attribute_group = { 4294 .attrs = ipw2100_sysfs_entries, 4295}; 4296 4297static int status_queue_allocate(struct ipw2100_priv *priv, int entries) 4298{ 4299 struct ipw2100_status_queue *q = &priv->status_queue; 4300 4301 IPW_DEBUG_INFO("enter\n"); 4302 4303 q->size = entries * sizeof(struct ipw2100_status); 4304 q->drv = 4305 (struct ipw2100_status *)pci_alloc_consistent(priv->pci_dev, 4306 q->size, &q->nic); 4307 if (!q->drv) { 4308 IPW_DEBUG_WARNING("Can not allocate status queue.\n"); 4309 return -ENOMEM; 4310 } 4311 4312 memset(q->drv, 0, q->size); 4313 4314 IPW_DEBUG_INFO("exit\n"); 4315 4316 return 0; 4317} 4318 4319static void status_queue_free(struct ipw2100_priv *priv) 4320{ 4321 IPW_DEBUG_INFO("enter\n"); 4322 4323 if (priv->status_queue.drv) { 4324 pci_free_consistent(priv->pci_dev, priv->status_queue.size, 4325 priv->status_queue.drv, 4326 priv->status_queue.nic); 4327 priv->status_queue.drv = NULL; 4328 } 4329 4330 IPW_DEBUG_INFO("exit\n"); 4331} 4332 4333static int bd_queue_allocate(struct ipw2100_priv *priv, 4334 struct ipw2100_bd_queue *q, int entries) 4335{ 4336 IPW_DEBUG_INFO("enter\n"); 4337 4338 memset(q, 0, sizeof(struct ipw2100_bd_queue)); 4339 4340 q->entries = entries; 4341 q->size = entries * sizeof(struct ipw2100_bd); 4342 q->drv = pci_alloc_consistent(priv->pci_dev, q->size, &q->nic); 4343 if (!q->drv) { 4344 IPW_DEBUG_INFO 4345 ("can't allocate shared memory for buffer descriptors\n"); 4346 return -ENOMEM; 4347 } 4348 memset(q->drv, 0, q->size); 4349 4350 IPW_DEBUG_INFO("exit\n"); 4351 4352 return 0; 4353} 4354 4355static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q) 4356{ 4357 IPW_DEBUG_INFO("enter\n"); 4358 4359 if (!q) 4360 return; 4361 4362 if (q->drv) { 4363 pci_free_consistent(priv->pci_dev, q->size, q->drv, q->nic); 4364 q->drv = NULL; 4365 } 4366 4367 IPW_DEBUG_INFO("exit\n"); 4368} 4369 4370static void bd_queue_initialize(struct ipw2100_priv *priv, 4371 struct ipw2100_bd_queue *q, u32 base, u32 size, 4372 u32 r, u32 w) 4373{ 4374 IPW_DEBUG_INFO("enter\n"); 4375 4376 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv, 4377 (u32) q->nic); 4378 4379 write_register(priv->net_dev, base, q->nic); 4380 write_register(priv->net_dev, size, q->entries); 4381 write_register(priv->net_dev, r, q->oldest); 4382 write_register(priv->net_dev, w, q->next); 4383 4384 IPW_DEBUG_INFO("exit\n"); 4385} 4386 4387static void ipw2100_kill_workqueue(struct ipw2100_priv *priv) 4388{ 4389 if (priv->workqueue) { 4390 priv->stop_rf_kill = 1; 4391 priv->stop_hang_check = 1; 4392 cancel_delayed_work(&priv->reset_work); 4393 cancel_delayed_work(&priv->security_work); 4394 cancel_delayed_work(&priv->wx_event_work); 4395 cancel_delayed_work(&priv->hang_check); 4396 cancel_delayed_work(&priv->rf_kill); 4397 cancel_delayed_work(&priv->scan_event_later); 4398 destroy_workqueue(priv->workqueue); 4399 priv->workqueue = NULL; 4400 } 4401} 4402 4403static int ipw2100_tx_allocate(struct ipw2100_priv *priv) 4404{ 4405 int i, j, err = -EINVAL; 4406 void *v; 4407 dma_addr_t p; 4408 4409 IPW_DEBUG_INFO("enter\n"); 4410 4411 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH); 4412 if (err) { 4413 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n", 4414 priv->net_dev->name); 4415 return err; 4416 } 4417 4418 priv->tx_buffers = 4419 (struct ipw2100_tx_packet *)kmalloc(TX_PENDED_QUEUE_LENGTH * 4420 sizeof(struct 4421 ipw2100_tx_packet), 4422 GFP_ATOMIC); 4423 if (!priv->tx_buffers) { 4424 printk(KERN_ERR DRV_NAME 4425 ": %s: alloc failed form tx buffers.\n", 4426 priv->net_dev->name); 4427 bd_queue_free(priv, &priv->tx_queue); 4428 return -ENOMEM; 4429 } 4430 4431 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) { 4432 v = pci_alloc_consistent(priv->pci_dev, 4433 sizeof(struct ipw2100_data_header), 4434 &p); 4435 if (!v) { 4436 printk(KERN_ERR DRV_NAME 4437 ": %s: PCI alloc failed for tx " "buffers.\n", 4438 priv->net_dev->name); 4439 err = -ENOMEM; 4440 break; 4441 } 4442 4443 priv->tx_buffers[i].type = DATA; 4444 priv->tx_buffers[i].info.d_struct.data = 4445 (struct ipw2100_data_header *)v; 4446 priv->tx_buffers[i].info.d_struct.data_phys = p; 4447 priv->tx_buffers[i].info.d_struct.txb = NULL; 4448 } 4449 4450 if (i == TX_PENDED_QUEUE_LENGTH) 4451 return 0; 4452 4453 for (j = 0; j < i; j++) { 4454 pci_free_consistent(priv->pci_dev, 4455 sizeof(struct ipw2100_data_header), 4456 priv->tx_buffers[j].info.d_struct.data, 4457 priv->tx_buffers[j].info.d_struct. 4458 data_phys); 4459 } 4460 4461 kfree(priv->tx_buffers); 4462 priv->tx_buffers = NULL; 4463 4464 return err; 4465} 4466 4467static void ipw2100_tx_initialize(struct ipw2100_priv *priv) 4468{ 4469 int i; 4470 4471 IPW_DEBUG_INFO("enter\n"); 4472 4473 /* 4474 * reinitialize packet info lists 4475 */ 4476 INIT_LIST_HEAD(&priv->fw_pend_list); 4477 INIT_STAT(&priv->fw_pend_stat); 4478 4479 /* 4480 * reinitialize lists 4481 */ 4482 INIT_LIST_HEAD(&priv->tx_pend_list); 4483 INIT_LIST_HEAD(&priv->tx_free_list); 4484 INIT_STAT(&priv->tx_pend_stat); 4485 INIT_STAT(&priv->tx_free_stat); 4486 4487 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) { 4488 /* We simply drop any SKBs that have been queued for 4489 * transmit */ 4490 if (priv->tx_buffers[i].info.d_struct.txb) { 4491 libipw_txb_free(priv->tx_buffers[i].info.d_struct. 4492 txb); 4493 priv->tx_buffers[i].info.d_struct.txb = NULL; 4494 } 4495 4496 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list); 4497 } 4498 4499 SET_STAT(&priv->tx_free_stat, i); 4500 4501 priv->tx_queue.oldest = 0; 4502 priv->tx_queue.available = priv->tx_queue.entries; 4503 priv->tx_queue.next = 0; 4504 INIT_STAT(&priv->txq_stat); 4505 SET_STAT(&priv->txq_stat, priv->tx_queue.available); 4506 4507 bd_queue_initialize(priv, &priv->tx_queue, 4508 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE, 4509 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE, 4510 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX, 4511 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX); 4512 4513 IPW_DEBUG_INFO("exit\n"); 4514 4515} 4516 4517static void ipw2100_tx_free(struct ipw2100_priv *priv) 4518{ 4519 int i; 4520 4521 IPW_DEBUG_INFO("enter\n"); 4522 4523 bd_queue_free(priv, &priv->tx_queue); 4524 4525 if (!priv->tx_buffers) 4526 return; 4527 4528 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) { 4529 if (priv->tx_buffers[i].info.d_struct.txb) { 4530 libipw_txb_free(priv->tx_buffers[i].info.d_struct. 4531 txb); 4532 priv->tx_buffers[i].info.d_struct.txb = NULL; 4533 } 4534 if (priv->tx_buffers[i].info.d_struct.data) 4535 pci_free_consistent(priv->pci_dev, 4536 sizeof(struct ipw2100_data_header), 4537 priv->tx_buffers[i].info.d_struct. 4538 data, 4539 priv->tx_buffers[i].info.d_struct. 4540 data_phys); 4541 } 4542 4543 kfree(priv->tx_buffers); 4544 priv->tx_buffers = NULL; 4545 4546 IPW_DEBUG_INFO("exit\n"); 4547} 4548 4549static int ipw2100_rx_allocate(struct ipw2100_priv *priv) 4550{ 4551 int i, j, err = -EINVAL; 4552 4553 IPW_DEBUG_INFO("enter\n"); 4554 4555 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH); 4556 if (err) { 4557 IPW_DEBUG_INFO("failed bd_queue_allocate\n"); 4558 return err; 4559 } 4560 4561 err = status_queue_allocate(priv, RX_QUEUE_LENGTH); 4562 if (err) { 4563 IPW_DEBUG_INFO("failed status_queue_allocate\n"); 4564 bd_queue_free(priv, &priv->rx_queue); 4565 return err; 4566 } 4567 4568 /* 4569 * allocate packets 4570 */ 4571 priv->rx_buffers = (struct ipw2100_rx_packet *) 4572 kmalloc(RX_QUEUE_LENGTH * sizeof(struct ipw2100_rx_packet), 4573 GFP_KERNEL); 4574 if (!priv->rx_buffers) { 4575 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n"); 4576 4577 bd_queue_free(priv, &priv->rx_queue); 4578 4579 status_queue_free(priv); 4580 4581 return -ENOMEM; 4582 } 4583 4584 for (i = 0; i < RX_QUEUE_LENGTH; i++) { 4585 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i]; 4586 4587 err = ipw2100_alloc_skb(priv, packet); 4588 if (unlikely(err)) { 4589 err = -ENOMEM; 4590 break; 4591 } 4592 4593 /* The BD holds the cache aligned address */ 4594 priv->rx_queue.drv[i].host_addr = packet->dma_addr; 4595 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH; 4596 priv->status_queue.drv[i].status_fields = 0; 4597 } 4598 4599 if (i == RX_QUEUE_LENGTH) 4600 return 0; 4601 4602 for (j = 0; j < i; j++) { 4603 pci_unmap_single(priv->pci_dev, priv->rx_buffers[j].dma_addr, 4604 sizeof(struct ipw2100_rx_packet), 4605 PCI_DMA_FROMDEVICE); 4606 dev_kfree_skb(priv->rx_buffers[j].skb); 4607 } 4608 4609 kfree(priv->rx_buffers); 4610 priv->rx_buffers = NULL; 4611 4612 bd_queue_free(priv, &priv->rx_queue); 4613 4614 status_queue_free(priv); 4615 4616 return err; 4617} 4618 4619static void ipw2100_rx_initialize(struct ipw2100_priv *priv) 4620{ 4621 IPW_DEBUG_INFO("enter\n"); 4622 4623 priv->rx_queue.oldest = 0; 4624 priv->rx_queue.available = priv->rx_queue.entries - 1; 4625 priv->rx_queue.next = priv->rx_queue.entries - 1; 4626 4627 INIT_STAT(&priv->rxq_stat); 4628 SET_STAT(&priv->rxq_stat, priv->rx_queue.available); 4629 4630 bd_queue_initialize(priv, &priv->rx_queue, 4631 IPW_MEM_HOST_SHARED_RX_BD_BASE, 4632 IPW_MEM_HOST_SHARED_RX_BD_SIZE, 4633 IPW_MEM_HOST_SHARED_RX_READ_INDEX, 4634 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX); 4635 4636 /* set up the status queue */ 4637 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE, 4638 priv->status_queue.nic); 4639 4640 IPW_DEBUG_INFO("exit\n"); 4641} 4642 4643static void ipw2100_rx_free(struct ipw2100_priv *priv) 4644{ 4645 int i; 4646 4647 IPW_DEBUG_INFO("enter\n"); 4648 4649 bd_queue_free(priv, &priv->rx_queue); 4650 status_queue_free(priv); 4651 4652 if (!priv->rx_buffers) 4653 return; 4654 4655 for (i = 0; i < RX_QUEUE_LENGTH; i++) { 4656 if (priv->rx_buffers[i].rxp) { 4657 pci_unmap_single(priv->pci_dev, 4658 priv->rx_buffers[i].dma_addr, 4659 sizeof(struct ipw2100_rx), 4660 PCI_DMA_FROMDEVICE); 4661 dev_kfree_skb(priv->rx_buffers[i].skb); 4662 } 4663 } 4664 4665 kfree(priv->rx_buffers); 4666 priv->rx_buffers = NULL; 4667 4668 IPW_DEBUG_INFO("exit\n"); 4669} 4670 4671static int ipw2100_read_mac_address(struct ipw2100_priv *priv) 4672{ 4673 u32 length = ETH_ALEN; 4674 u8 addr[ETH_ALEN]; 4675 4676 int err; 4677 4678 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length); 4679 if (err) { 4680 IPW_DEBUG_INFO("MAC address read failed\n"); 4681 return -EIO; 4682 } 4683 4684 memcpy(priv->net_dev->dev_addr, addr, ETH_ALEN); 4685 IPW_DEBUG_INFO("card MAC is %pM\n", priv->net_dev->dev_addr); 4686 4687 return 0; 4688} 4689 4690/******************************************************************** 4691 * 4692 * Firmware Commands 4693 * 4694 ********************************************************************/ 4695 4696static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode) 4697{ 4698 struct host_command cmd = { 4699 .host_command = ADAPTER_ADDRESS, 4700 .host_command_sequence = 0, 4701 .host_command_length = ETH_ALEN 4702 }; 4703 int err; 4704 4705 IPW_DEBUG_HC("SET_MAC_ADDRESS\n"); 4706 4707 IPW_DEBUG_INFO("enter\n"); 4708 4709 if (priv->config & CFG_CUSTOM_MAC) { 4710 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN); 4711 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN); 4712 } else 4713 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr, 4714 ETH_ALEN); 4715 4716 err = ipw2100_hw_send_command(priv, &cmd); 4717 4718 IPW_DEBUG_INFO("exit\n"); 4719 return err; 4720} 4721 4722static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type, 4723 int batch_mode) 4724{ 4725 struct host_command cmd = { 4726 .host_command = PORT_TYPE, 4727 .host_command_sequence = 0, 4728 .host_command_length = sizeof(u32) 4729 }; 4730 int err; 4731 4732 switch (port_type) { 4733 case IW_MODE_INFRA: 4734 cmd.host_command_parameters[0] = IPW_BSS; 4735 break; 4736 case IW_MODE_ADHOC: 4737 cmd.host_command_parameters[0] = IPW_IBSS; 4738 break; 4739 } 4740 4741 IPW_DEBUG_HC("PORT_TYPE: %s\n", 4742 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed"); 4743 4744 if (!batch_mode) { 4745 err = ipw2100_disable_adapter(priv); 4746 if (err) { 4747 printk(KERN_ERR DRV_NAME 4748 ": %s: Could not disable adapter %d\n", 4749 priv->net_dev->name, err); 4750 return err; 4751 } 4752 } 4753 4754 /* send cmd to firmware */ 4755 err = ipw2100_hw_send_command(priv, &cmd); 4756 4757 if (!batch_mode) 4758 ipw2100_enable_adapter(priv); 4759 4760 return err; 4761} 4762 4763static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel, 4764 int batch_mode) 4765{ 4766 struct host_command cmd = { 4767 .host_command = CHANNEL, 4768 .host_command_sequence = 0, 4769 .host_command_length = sizeof(u32) 4770 }; 4771 int err; 4772 4773 cmd.host_command_parameters[0] = channel; 4774 4775 IPW_DEBUG_HC("CHANNEL: %d\n", channel); 4776 4777 /* If BSS then we don't support channel selection */ 4778 if (priv->ieee->iw_mode == IW_MODE_INFRA) 4779 return 0; 4780 4781 if ((channel != 0) && 4782 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL))) 4783 return -EINVAL; 4784 4785 if (!batch_mode) { 4786 err = ipw2100_disable_adapter(priv); 4787 if (err) 4788 return err; 4789 } 4790 4791 err = ipw2100_hw_send_command(priv, &cmd); 4792 if (err) { 4793 IPW_DEBUG_INFO("Failed to set channel to %d", channel); 4794 return err; 4795 } 4796 4797 if (channel) 4798 priv->config |= CFG_STATIC_CHANNEL; 4799 else 4800 priv->config &= ~CFG_STATIC_CHANNEL; 4801 4802 priv->channel = channel; 4803 4804 if (!batch_mode) { 4805 err = ipw2100_enable_adapter(priv); 4806 if (err) 4807 return err; 4808 } 4809 4810 return 0; 4811} 4812 4813static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode) 4814{ 4815 struct host_command cmd = { 4816 .host_command = SYSTEM_CONFIG, 4817 .host_command_sequence = 0, 4818 .host_command_length = 12, 4819 }; 4820 u32 ibss_mask, len = sizeof(u32); 4821 int err; 4822 4823 /* Set system configuration */ 4824 4825 if (!batch_mode) { 4826 err = ipw2100_disable_adapter(priv); 4827 if (err) 4828 return err; 4829 } 4830 4831 if (priv->ieee->iw_mode == IW_MODE_ADHOC) 4832 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START; 4833 4834 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK | 4835 IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE; 4836 4837 if (!(priv->config & CFG_LONG_PREAMBLE)) 4838 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO; 4839 4840 err = ipw2100_get_ordinal(priv, 4841 IPW_ORD_EEPROM_IBSS_11B_CHANNELS, 4842 &ibss_mask, &len); 4843 if (err) 4844 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK; 4845 4846 cmd.host_command_parameters[1] = REG_CHANNEL_MASK; 4847 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask; 4848 4849 /* 11b only */ 4850 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */ 4851 4852 err = ipw2100_hw_send_command(priv, &cmd); 4853 if (err) 4854 return err; 4855 4856/* If IPv6 is configured in the kernel then we don't want to filter out all 4857 * of the multicast packets as IPv6 needs some. */ 4858#if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE) 4859 cmd.host_command = ADD_MULTICAST; 4860 cmd.host_command_sequence = 0; 4861 cmd.host_command_length = 0; 4862 4863 ipw2100_hw_send_command(priv, &cmd); 4864#endif 4865 if (!batch_mode) { 4866 err = ipw2100_enable_adapter(priv); 4867 if (err) 4868 return err; 4869 } 4870 4871 return 0; 4872} 4873 4874static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate, 4875 int batch_mode) 4876{ 4877 struct host_command cmd = { 4878 .host_command = BASIC_TX_RATES, 4879 .host_command_sequence = 0, 4880 .host_command_length = 4 4881 }; 4882 int err; 4883 4884 cmd.host_command_parameters[0] = rate & TX_RATE_MASK; 4885 4886 if (!batch_mode) { 4887 err = ipw2100_disable_adapter(priv); 4888 if (err) 4889 return err; 4890 } 4891 4892 /* Set BASIC TX Rate first */ 4893 ipw2100_hw_send_command(priv, &cmd); 4894 4895 /* Set TX Rate */ 4896 cmd.host_command = TX_RATES; 4897 ipw2100_hw_send_command(priv, &cmd); 4898 4899 /* Set MSDU TX Rate */ 4900 cmd.host_command = MSDU_TX_RATES; 4901 ipw2100_hw_send_command(priv, &cmd); 4902 4903 if (!batch_mode) { 4904 err = ipw2100_enable_adapter(priv); 4905 if (err) 4906 return err; 4907 } 4908 4909 priv->tx_rates = rate; 4910 4911 return 0; 4912} 4913 4914static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level) 4915{ 4916 struct host_command cmd = { 4917 .host_command = POWER_MODE, 4918 .host_command_sequence = 0, 4919 .host_command_length = 4 4920 }; 4921 int err; 4922 4923 cmd.host_command_parameters[0] = power_level; 4924 4925 err = ipw2100_hw_send_command(priv, &cmd); 4926 if (err) 4927 return err; 4928 4929 if (power_level == IPW_POWER_MODE_CAM) 4930 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); 4931 else 4932 priv->power_mode = IPW_POWER_ENABLED | power_level; 4933 4934#ifdef IPW2100_TX_POWER 4935 if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) { 4936 /* Set beacon interval */ 4937 cmd.host_command = TX_POWER_INDEX; 4938 cmd.host_command_parameters[0] = (u32) priv->adhoc_power; 4939 4940 err = ipw2100_hw_send_command(priv, &cmd); 4941 if (err) 4942 return err; 4943 } 4944#endif 4945 4946 return 0; 4947} 4948 4949static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold) 4950{ 4951 struct host_command cmd = { 4952 .host_command = RTS_THRESHOLD, 4953 .host_command_sequence = 0, 4954 .host_command_length = 4 4955 }; 4956 int err; 4957 4958 if (threshold & RTS_DISABLED) 4959 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD; 4960 else 4961 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED; 4962 4963 err = ipw2100_hw_send_command(priv, &cmd); 4964 if (err) 4965 return err; 4966 4967 priv->rts_threshold = threshold; 4968 4969 return 0; 4970} 4971 4972#if 0 4973int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv, 4974 u32 threshold, int batch_mode) 4975{ 4976 struct host_command cmd = { 4977 .host_command = FRAG_THRESHOLD, 4978 .host_command_sequence = 0, 4979 .host_command_length = 4, 4980 .host_command_parameters[0] = 0, 4981 }; 4982 int err; 4983 4984 if (!batch_mode) { 4985 err = ipw2100_disable_adapter(priv); 4986 if (err) 4987 return err; 4988 } 4989 4990 if (threshold == 0) 4991 threshold = DEFAULT_FRAG_THRESHOLD; 4992 else { 4993 threshold = max(threshold, MIN_FRAG_THRESHOLD); 4994 threshold = min(threshold, MAX_FRAG_THRESHOLD); 4995 } 4996 4997 cmd.host_command_parameters[0] = threshold; 4998 4999 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold); 5000 5001 err = ipw2100_hw_send_command(priv, &cmd); 5002 5003 if (!batch_mode) 5004 ipw2100_enable_adapter(priv); 5005 5006 if (!err) 5007 priv->frag_threshold = threshold; 5008 5009 return err; 5010} 5011#endif 5012 5013static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry) 5014{ 5015 struct host_command cmd = { 5016 .host_command = SHORT_RETRY_LIMIT, 5017 .host_command_sequence = 0, 5018 .host_command_length = 4 5019 }; 5020 int err; 5021 5022 cmd.host_command_parameters[0] = retry; 5023 5024 err = ipw2100_hw_send_command(priv, &cmd); 5025 if (err) 5026 return err; 5027 5028 priv->short_retry_limit = retry; 5029 5030 return 0; 5031} 5032 5033static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry) 5034{ 5035 struct host_command cmd = { 5036 .host_command = LONG_RETRY_LIMIT, 5037 .host_command_sequence = 0, 5038 .host_command_length = 4 5039 }; 5040 int err; 5041 5042 cmd.host_command_parameters[0] = retry; 5043 5044 err = ipw2100_hw_send_command(priv, &cmd); 5045 if (err) 5046 return err; 5047 5048 priv->long_retry_limit = retry; 5049 5050 return 0; 5051} 5052 5053static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid, 5054 int batch_mode) 5055{ 5056 struct host_command cmd = { 5057 .host_command = MANDATORY_BSSID, 5058 .host_command_sequence = 0, 5059 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN 5060 }; 5061 int err; 5062 5063#ifdef CONFIG_IPW2100_DEBUG 5064 if (bssid != NULL) 5065 IPW_DEBUG_HC("MANDATORY_BSSID: %pM\n", bssid); 5066 else 5067 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n"); 5068#endif 5069 /* if BSSID is empty then we disable mandatory bssid mode */ 5070 if (bssid != NULL) 5071 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN); 5072 5073 if (!batch_mode) { 5074 err = ipw2100_disable_adapter(priv); 5075 if (err) 5076 return err; 5077 } 5078 5079 err = ipw2100_hw_send_command(priv, &cmd); 5080 5081 if (!batch_mode) 5082 ipw2100_enable_adapter(priv); 5083 5084 return err; 5085} 5086 5087static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv) 5088{ 5089 struct host_command cmd = { 5090 .host_command = DISASSOCIATION_BSSID, 5091 .host_command_sequence = 0, 5092 .host_command_length = ETH_ALEN 5093 }; 5094 int err; 5095 int len; 5096 5097 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n"); 5098 5099 len = ETH_ALEN; 5100 /* The Firmware currently ignores the BSSID and just disassociates from 5101 * the currently associated AP -- but in the off chance that a future 5102 * firmware does use the BSSID provided here, we go ahead and try and 5103 * set it to the currently associated AP's BSSID */ 5104 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN); 5105 5106 err = ipw2100_hw_send_command(priv, &cmd); 5107 5108 return err; 5109} 5110 5111static int ipw2100_set_wpa_ie(struct ipw2100_priv *, 5112 struct ipw2100_wpa_assoc_frame *, int) 5113 __attribute__ ((unused)); 5114 5115static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv, 5116 struct ipw2100_wpa_assoc_frame *wpa_frame, 5117 int batch_mode) 5118{ 5119 struct host_command cmd = { 5120 .host_command = SET_WPA_IE, 5121 .host_command_sequence = 0, 5122 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame), 5123 }; 5124 int err; 5125 5126 IPW_DEBUG_HC("SET_WPA_IE\n"); 5127 5128 if (!batch_mode) { 5129 err = ipw2100_disable_adapter(priv); 5130 if (err) 5131 return err; 5132 } 5133 5134 memcpy(cmd.host_command_parameters, wpa_frame, 5135 sizeof(struct ipw2100_wpa_assoc_frame)); 5136 5137 err = ipw2100_hw_send_command(priv, &cmd); 5138 5139 if (!batch_mode) { 5140 if (ipw2100_enable_adapter(priv)) 5141 err = -EIO; 5142 } 5143 5144 return err; 5145} 5146 5147struct security_info_params { 5148 u32 allowed_ciphers; 5149 u16 version; 5150 u8 auth_mode; 5151 u8 replay_counters_number; 5152 u8 unicast_using_group; 5153} __attribute__ ((packed)); 5154 5155static int ipw2100_set_security_information(struct ipw2100_priv *priv, 5156 int auth_mode, 5157 int security_level, 5158 int unicast_using_group, 5159 int batch_mode) 5160{ 5161 struct host_command cmd = { 5162 .host_command = SET_SECURITY_INFORMATION, 5163 .host_command_sequence = 0, 5164 .host_command_length = sizeof(struct security_info_params) 5165 }; 5166 struct security_info_params *security = 5167 (struct security_info_params *)&cmd.host_command_parameters; 5168 int err; 5169 memset(security, 0, sizeof(*security)); 5170 5171 /* If shared key AP authentication is turned on, then we need to 5172 * configure the firmware to try and use it. 5173 * 5174 * Actual data encryption/decryption is handled by the host. */ 5175 security->auth_mode = auth_mode; 5176 security->unicast_using_group = unicast_using_group; 5177 5178 switch (security_level) { 5179 default: 5180 case SEC_LEVEL_0: 5181 security->allowed_ciphers = IPW_NONE_CIPHER; 5182 break; 5183 case SEC_LEVEL_1: 5184 security->allowed_ciphers = IPW_WEP40_CIPHER | 5185 IPW_WEP104_CIPHER; 5186 break; 5187 case SEC_LEVEL_2: 5188 security->allowed_ciphers = IPW_WEP40_CIPHER | 5189 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER; 5190 break; 5191 case SEC_LEVEL_2_CKIP: 5192 security->allowed_ciphers = IPW_WEP40_CIPHER | 5193 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER; 5194 break; 5195 case SEC_LEVEL_3: 5196 security->allowed_ciphers = IPW_WEP40_CIPHER | 5197 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER; 5198 break; 5199 } 5200 5201 IPW_DEBUG_HC 5202 ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n", 5203 security->auth_mode, security->allowed_ciphers, security_level); 5204 5205 security->replay_counters_number = 0; 5206 5207 if (!batch_mode) { 5208 err = ipw2100_disable_adapter(priv); 5209 if (err) 5210 return err; 5211 } 5212 5213 err = ipw2100_hw_send_command(priv, &cmd); 5214 5215 if (!batch_mode) 5216 ipw2100_enable_adapter(priv); 5217 5218 return err; 5219} 5220 5221static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power) 5222{ 5223 struct host_command cmd = { 5224 .host_command = TX_POWER_INDEX, 5225 .host_command_sequence = 0, 5226 .host_command_length = 4 5227 }; 5228 int err = 0; 5229 u32 tmp = tx_power; 5230 5231 if (tx_power != IPW_TX_POWER_DEFAULT) 5232 tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 / 5233 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM); 5234 5235 cmd.host_command_parameters[0] = tmp; 5236 5237 if (priv->ieee->iw_mode == IW_MODE_ADHOC) 5238 err = ipw2100_hw_send_command(priv, &cmd); 5239 if (!err) 5240 priv->tx_power = tx_power; 5241 5242 return 0; 5243} 5244 5245static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv, 5246 u32 interval, int batch_mode) 5247{ 5248 struct host_command cmd = { 5249 .host_command = BEACON_INTERVAL, 5250 .host_command_sequence = 0, 5251 .host_command_length = 4 5252 }; 5253 int err; 5254 5255 cmd.host_command_parameters[0] = interval; 5256 5257 IPW_DEBUG_INFO("enter\n"); 5258 5259 if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 5260 if (!batch_mode) { 5261 err = ipw2100_disable_adapter(priv); 5262 if (err) 5263 return err; 5264 } 5265 5266 ipw2100_hw_send_command(priv, &cmd); 5267 5268 if (!batch_mode) { 5269 err = ipw2100_enable_adapter(priv); 5270 if (err) 5271 return err; 5272 } 5273 } 5274 5275 IPW_DEBUG_INFO("exit\n"); 5276 5277 return 0; 5278} 5279 5280static void ipw2100_queues_initialize(struct ipw2100_priv *priv) 5281{ 5282 ipw2100_tx_initialize(priv); 5283 ipw2100_rx_initialize(priv); 5284 ipw2100_msg_initialize(priv); 5285} 5286 5287static void ipw2100_queues_free(struct ipw2100_priv *priv) 5288{ 5289 ipw2100_tx_free(priv); 5290 ipw2100_rx_free(priv); 5291 ipw2100_msg_free(priv); 5292} 5293 5294static int ipw2100_queues_allocate(struct ipw2100_priv *priv) 5295{ 5296 if (ipw2100_tx_allocate(priv) || 5297 ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv)) 5298 goto fail; 5299 5300 return 0; 5301 5302 fail: 5303 ipw2100_tx_free(priv); 5304 ipw2100_rx_free(priv); 5305 ipw2100_msg_free(priv); 5306 return -ENOMEM; 5307} 5308 5309#define IPW_PRIVACY_CAPABLE 0x0008 5310 5311static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags, 5312 int batch_mode) 5313{ 5314 struct host_command cmd = { 5315 .host_command = WEP_FLAGS, 5316 .host_command_sequence = 0, 5317 .host_command_length = 4 5318 }; 5319 int err; 5320 5321 cmd.host_command_parameters[0] = flags; 5322 5323 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags); 5324 5325 if (!batch_mode) { 5326 err = ipw2100_disable_adapter(priv); 5327 if (err) { 5328 printk(KERN_ERR DRV_NAME 5329 ": %s: Could not disable adapter %d\n", 5330 priv->net_dev->name, err); 5331 return err; 5332 } 5333 } 5334 5335 /* send cmd to firmware */ 5336 err = ipw2100_hw_send_command(priv, &cmd); 5337 5338 if (!batch_mode) 5339 ipw2100_enable_adapter(priv); 5340 5341 return err; 5342} 5343 5344struct ipw2100_wep_key { 5345 u8 idx; 5346 u8 len; 5347 u8 key[13]; 5348}; 5349 5350/* Macros to ease up priting WEP keys */ 5351#define WEP_FMT_64 "%02X%02X%02X%02X-%02X" 5352#define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X" 5353#define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4] 5354#define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10] 5355 5356/** 5357 * Set a the wep key 5358 * 5359 * @priv: struct to work on 5360 * @idx: index of the key we want to set 5361 * @key: ptr to the key data to set 5362 * @len: length of the buffer at @key 5363 * @batch_mode: FIXME perform the operation in batch mode, not 5364 * disabling the device. 5365 * 5366 * @returns 0 if OK, < 0 errno code on error. 5367 * 5368 * Fill out a command structure with the new wep key, length an 5369 * index and send it down the wire. 5370 */ 5371static int ipw2100_set_key(struct ipw2100_priv *priv, 5372 int idx, char *key, int len, int batch_mode) 5373{ 5374 int keylen = len ? (len <= 5 ? 5 : 13) : 0; 5375 struct host_command cmd = { 5376 .host_command = WEP_KEY_INFO, 5377 .host_command_sequence = 0, 5378 .host_command_length = sizeof(struct ipw2100_wep_key), 5379 }; 5380 struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters; 5381 int err; 5382 5383 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n", 5384 idx, keylen, len); 5385 5386 /* NOTE: We don't check cached values in case the firmware was reset 5387 * or some other problem is occurring. If the user is setting the key, 5388 * then we push the change */ 5389 5390 wep_key->idx = idx; 5391 wep_key->len = keylen; 5392 5393 if (keylen) { 5394 memcpy(wep_key->key, key, len); 5395 memset(wep_key->key + len, 0, keylen - len); 5396 } 5397 5398 /* Will be optimized out on debug not being configured in */ 5399 if (keylen == 0) 5400 IPW_DEBUG_WEP("%s: Clearing key %d\n", 5401 priv->net_dev->name, wep_key->idx); 5402 else if (keylen == 5) 5403 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n", 5404 priv->net_dev->name, wep_key->idx, wep_key->len, 5405 WEP_STR_64(wep_key->key)); 5406 else 5407 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128 5408 "\n", 5409 priv->net_dev->name, wep_key->idx, wep_key->len, 5410 WEP_STR_128(wep_key->key)); 5411 5412 if (!batch_mode) { 5413 err = ipw2100_disable_adapter(priv); 5414 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */ 5415 if (err) { 5416 printk(KERN_ERR DRV_NAME 5417 ": %s: Could not disable adapter %d\n", 5418 priv->net_dev->name, err); 5419 return err; 5420 } 5421 } 5422 5423 /* send cmd to firmware */ 5424 err = ipw2100_hw_send_command(priv, &cmd); 5425 5426 if (!batch_mode) { 5427 int err2 = ipw2100_enable_adapter(priv); 5428 if (err == 0) 5429 err = err2; 5430 } 5431 return err; 5432} 5433 5434static int ipw2100_set_key_index(struct ipw2100_priv *priv, 5435 int idx, int batch_mode) 5436{ 5437 struct host_command cmd = { 5438 .host_command = WEP_KEY_INDEX, 5439 .host_command_sequence = 0, 5440 .host_command_length = 4, 5441 .host_command_parameters = {idx}, 5442 }; 5443 int err; 5444 5445 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx); 5446 5447 if (idx < 0 || idx > 3) 5448 return -EINVAL; 5449 5450 if (!batch_mode) { 5451 err = ipw2100_disable_adapter(priv); 5452 if (err) { 5453 printk(KERN_ERR DRV_NAME 5454 ": %s: Could not disable adapter %d\n", 5455 priv->net_dev->name, err); 5456 return err; 5457 } 5458 } 5459 5460 /* send cmd to firmware */ 5461 err = ipw2100_hw_send_command(priv, &cmd); 5462 5463 if (!batch_mode) 5464 ipw2100_enable_adapter(priv); 5465 5466 return err; 5467} 5468 5469static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode) 5470{ 5471 int i, err, auth_mode, sec_level, use_group; 5472 5473 if (!(priv->status & STATUS_RUNNING)) 5474 return 0; 5475 5476 if (!batch_mode) { 5477 err = ipw2100_disable_adapter(priv); 5478 if (err) 5479 return err; 5480 } 5481 5482 if (!priv->ieee->sec.enabled) { 5483 err = 5484 ipw2100_set_security_information(priv, IPW_AUTH_OPEN, 5485 SEC_LEVEL_0, 0, 1); 5486 } else { 5487 auth_mode = IPW_AUTH_OPEN; 5488 if (priv->ieee->sec.flags & SEC_AUTH_MODE) { 5489 if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY) 5490 auth_mode = IPW_AUTH_SHARED; 5491 else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP) 5492 auth_mode = IPW_AUTH_LEAP_CISCO_ID; 5493 } 5494 5495 sec_level = SEC_LEVEL_0; 5496 if (priv->ieee->sec.flags & SEC_LEVEL) 5497 sec_level = priv->ieee->sec.level; 5498 5499 use_group = 0; 5500 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP) 5501 use_group = priv->ieee->sec.unicast_uses_group; 5502 5503 err = 5504 ipw2100_set_security_information(priv, auth_mode, sec_level, 5505 use_group, 1); 5506 } 5507 5508 if (err) 5509 goto exit; 5510 5511 if (priv->ieee->sec.enabled) { 5512 for (i = 0; i < 4; i++) { 5513 if (!(priv->ieee->sec.flags & (1 << i))) { 5514 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN); 5515 priv->ieee->sec.key_sizes[i] = 0; 5516 } else { 5517 err = ipw2100_set_key(priv, i, 5518 priv->ieee->sec.keys[i], 5519 priv->ieee->sec. 5520 key_sizes[i], 1); 5521 if (err) 5522 goto exit; 5523 } 5524 } 5525 5526 ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1); 5527 } 5528 5529 /* Always enable privacy so the Host can filter WEP packets if 5530 * encrypted data is sent up */ 5531 err = 5532 ipw2100_set_wep_flags(priv, 5533 priv->ieee->sec. 5534 enabled ? IPW_PRIVACY_CAPABLE : 0, 1); 5535 if (err) 5536 goto exit; 5537 5538 priv->status &= ~STATUS_SECURITY_UPDATED; 5539 5540 exit: 5541 if (!batch_mode) 5542 ipw2100_enable_adapter(priv); 5543 5544 return err; 5545} 5546 5547static void ipw2100_security_work(struct work_struct *work) 5548{ 5549 struct ipw2100_priv *priv = 5550 container_of(work, struct ipw2100_priv, security_work.work); 5551 5552 /* If we happen to have reconnected before we get a chance to 5553 * process this, then update the security settings--which causes 5554 * a disassociation to occur */ 5555 if (!(priv->status & STATUS_ASSOCIATED) && 5556 priv->status & STATUS_SECURITY_UPDATED) 5557 ipw2100_configure_security(priv, 0); 5558} 5559 5560static void shim__set_security(struct net_device *dev, 5561 struct libipw_security *sec) 5562{ 5563 struct ipw2100_priv *priv = libipw_priv(dev); 5564 int i, force_update = 0; 5565 5566 mutex_lock(&priv->action_mutex); 5567 if (!(priv->status & STATUS_INITIALIZED)) 5568 goto done; 5569 5570 for (i = 0; i < 4; i++) { 5571 if (sec->flags & (1 << i)) { 5572 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i]; 5573 if (sec->key_sizes[i] == 0) 5574 priv->ieee->sec.flags &= ~(1 << i); 5575 else 5576 memcpy(priv->ieee->sec.keys[i], sec->keys[i], 5577 sec->key_sizes[i]); 5578 if (sec->level == SEC_LEVEL_1) { 5579 priv->ieee->sec.flags |= (1 << i); 5580 priv->status |= STATUS_SECURITY_UPDATED; 5581 } else 5582 priv->ieee->sec.flags &= ~(1 << i); 5583 } 5584 } 5585 5586 if ((sec->flags & SEC_ACTIVE_KEY) && 5587 priv->ieee->sec.active_key != sec->active_key) { 5588 if (sec->active_key <= 3) { 5589 priv->ieee->sec.active_key = sec->active_key; 5590 priv->ieee->sec.flags |= SEC_ACTIVE_KEY; 5591 } else 5592 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; 5593 5594 priv->status |= STATUS_SECURITY_UPDATED; 5595 } 5596 5597 if ((sec->flags & SEC_AUTH_MODE) && 5598 (priv->ieee->sec.auth_mode != sec->auth_mode)) { 5599 priv->ieee->sec.auth_mode = sec->auth_mode; 5600 priv->ieee->sec.flags |= SEC_AUTH_MODE; 5601 priv->status |= STATUS_SECURITY_UPDATED; 5602 } 5603 5604 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) { 5605 priv->ieee->sec.flags |= SEC_ENABLED; 5606 priv->ieee->sec.enabled = sec->enabled; 5607 priv->status |= STATUS_SECURITY_UPDATED; 5608 force_update = 1; 5609 } 5610 5611 if (sec->flags & SEC_ENCRYPT) 5612 priv->ieee->sec.encrypt = sec->encrypt; 5613 5614 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) { 5615 priv->ieee->sec.level = sec->level; 5616 priv->ieee->sec.flags |= SEC_LEVEL; 5617 priv->status |= STATUS_SECURITY_UPDATED; 5618 } 5619 5620 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n", 5621 priv->ieee->sec.flags & (1 << 8) ? '1' : '0', 5622 priv->ieee->sec.flags & (1 << 7) ? '1' : '0', 5623 priv->ieee->sec.flags & (1 << 6) ? '1' : '0', 5624 priv->ieee->sec.flags & (1 << 5) ? '1' : '0', 5625 priv->ieee->sec.flags & (1 << 4) ? '1' : '0', 5626 priv->ieee->sec.flags & (1 << 3) ? '1' : '0', 5627 priv->ieee->sec.flags & (1 << 2) ? '1' : '0', 5628 priv->ieee->sec.flags & (1 << 1) ? '1' : '0', 5629 priv->ieee->sec.flags & (1 << 0) ? '1' : '0'); 5630 5631/* As a temporary work around to enable WPA until we figure out why 5632 * wpa_supplicant toggles the security capability of the driver, which 5633 * forces a disassocation with force_update... 5634 * 5635 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/ 5636 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) 5637 ipw2100_configure_security(priv, 0); 5638 done: 5639 mutex_unlock(&priv->action_mutex); 5640} 5641 5642static int ipw2100_adapter_setup(struct ipw2100_priv *priv) 5643{ 5644 int err; 5645 int batch_mode = 1; 5646 u8 *bssid; 5647 5648 IPW_DEBUG_INFO("enter\n"); 5649 5650 err = ipw2100_disable_adapter(priv); 5651 if (err) 5652 return err; 5653#ifdef CONFIG_IPW2100_MONITOR 5654 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 5655 err = ipw2100_set_channel(priv, priv->channel, batch_mode); 5656 if (err) 5657 return err; 5658 5659 IPW_DEBUG_INFO("exit\n"); 5660 5661 return 0; 5662 } 5663#endif /* CONFIG_IPW2100_MONITOR */ 5664 5665 err = ipw2100_read_mac_address(priv); 5666 if (err) 5667 return -EIO; 5668 5669 err = ipw2100_set_mac_address(priv, batch_mode); 5670 if (err) 5671 return err; 5672 5673 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode); 5674 if (err) 5675 return err; 5676 5677 if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 5678 err = ipw2100_set_channel(priv, priv->channel, batch_mode); 5679 if (err) 5680 return err; 5681 } 5682 5683 err = ipw2100_system_config(priv, batch_mode); 5684 if (err) 5685 return err; 5686 5687 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode); 5688 if (err) 5689 return err; 5690 5691 /* Default to power mode OFF */ 5692 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM); 5693 if (err) 5694 return err; 5695 5696 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold); 5697 if (err) 5698 return err; 5699 5700 if (priv->config & CFG_STATIC_BSSID) 5701 bssid = priv->bssid; 5702 else 5703 bssid = NULL; 5704 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode); 5705 if (err) 5706 return err; 5707 5708 if (priv->config & CFG_STATIC_ESSID) 5709 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len, 5710 batch_mode); 5711 else 5712 err = ipw2100_set_essid(priv, NULL, 0, batch_mode); 5713 if (err) 5714 return err; 5715 5716 err = ipw2100_configure_security(priv, batch_mode); 5717 if (err) 5718 return err; 5719 5720 if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 5721 err = 5722 ipw2100_set_ibss_beacon_interval(priv, 5723 priv->beacon_interval, 5724 batch_mode); 5725 if (err) 5726 return err; 5727 5728 err = ipw2100_set_tx_power(priv, priv->tx_power); 5729 if (err) 5730 return err; 5731 } 5732 5733 /* 5734 err = ipw2100_set_fragmentation_threshold( 5735 priv, priv->frag_threshold, batch_mode); 5736 if (err) 5737 return err; 5738 */ 5739 5740 IPW_DEBUG_INFO("exit\n"); 5741 5742 return 0; 5743} 5744 5745/************************************************************************* 5746 * 5747 * EXTERNALLY CALLED METHODS 5748 * 5749 *************************************************************************/ 5750 5751/* This method is called by the network layer -- not to be confused with 5752 * ipw2100_set_mac_address() declared above called by this driver (and this 5753 * method as well) to talk to the firmware */ 5754static int ipw2100_set_address(struct net_device *dev, void *p) 5755{ 5756 struct ipw2100_priv *priv = libipw_priv(dev); 5757 struct sockaddr *addr = p; 5758 int err = 0; 5759 5760 if (!is_valid_ether_addr(addr->sa_data)) 5761 return -EADDRNOTAVAIL; 5762 5763 mutex_lock(&priv->action_mutex); 5764 5765 priv->config |= CFG_CUSTOM_MAC; 5766 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); 5767 5768 err = ipw2100_set_mac_address(priv, 0); 5769 if (err) 5770 goto done; 5771 5772 priv->reset_backoff = 0; 5773 mutex_unlock(&priv->action_mutex); 5774 ipw2100_reset_adapter(&priv->reset_work.work); 5775 return 0; 5776 5777 done: 5778 mutex_unlock(&priv->action_mutex); 5779 return err; 5780} 5781 5782static int ipw2100_open(struct net_device *dev) 5783{ 5784 struct ipw2100_priv *priv = libipw_priv(dev); 5785 unsigned long flags; 5786 IPW_DEBUG_INFO("dev->open\n"); 5787 5788 spin_lock_irqsave(&priv->low_lock, flags); 5789 if (priv->status & STATUS_ASSOCIATED) { 5790 netif_carrier_on(dev); 5791 netif_start_queue(dev); 5792 } 5793 spin_unlock_irqrestore(&priv->low_lock, flags); 5794 5795 return 0; 5796} 5797 5798static int ipw2100_close(struct net_device *dev) 5799{ 5800 struct ipw2100_priv *priv = libipw_priv(dev); 5801 unsigned long flags; 5802 struct list_head *element; 5803 struct ipw2100_tx_packet *packet; 5804 5805 IPW_DEBUG_INFO("enter\n"); 5806 5807 spin_lock_irqsave(&priv->low_lock, flags); 5808 5809 if (priv->status & STATUS_ASSOCIATED) 5810 netif_carrier_off(dev); 5811 netif_stop_queue(dev); 5812 5813 /* Flush the TX queue ... */ 5814 while (!list_empty(&priv->tx_pend_list)) { 5815 element = priv->tx_pend_list.next; 5816 packet = list_entry(element, struct ipw2100_tx_packet, list); 5817 5818 list_del(element); 5819 DEC_STAT(&priv->tx_pend_stat); 5820 5821 libipw_txb_free(packet->info.d_struct.txb); 5822 packet->info.d_struct.txb = NULL; 5823 5824 list_add_tail(element, &priv->tx_free_list); 5825 INC_STAT(&priv->tx_free_stat); 5826 } 5827 spin_unlock_irqrestore(&priv->low_lock, flags); 5828 5829 IPW_DEBUG_INFO("exit\n"); 5830 5831 return 0; 5832} 5833 5834/* 5835 * TODO: Fix this function... its just wrong 5836 */ 5837static void ipw2100_tx_timeout(struct net_device *dev) 5838{ 5839 struct ipw2100_priv *priv = libipw_priv(dev); 5840 5841 dev->stats.tx_errors++; 5842 5843#ifdef CONFIG_IPW2100_MONITOR 5844 if (priv->ieee->iw_mode == IW_MODE_MONITOR) 5845 return; 5846#endif 5847 5848 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n", 5849 dev->name); 5850 schedule_reset(priv); 5851} 5852 5853static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value) 5854{ 5855 /* This is called when wpa_supplicant loads and closes the driver 5856 * interface. */ 5857 priv->ieee->wpa_enabled = value; 5858 return 0; 5859} 5860 5861static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value) 5862{ 5863 5864 struct libipw_device *ieee = priv->ieee; 5865 struct libipw_security sec = { 5866 .flags = SEC_AUTH_MODE, 5867 }; 5868 int ret = 0; 5869 5870 if (value & IW_AUTH_ALG_SHARED_KEY) { 5871 sec.auth_mode = WLAN_AUTH_SHARED_KEY; 5872 ieee->open_wep = 0; 5873 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) { 5874 sec.auth_mode = WLAN_AUTH_OPEN; 5875 ieee->open_wep = 1; 5876 } else if (value & IW_AUTH_ALG_LEAP) { 5877 sec.auth_mode = WLAN_AUTH_LEAP; 5878 ieee->open_wep = 1; 5879 } else 5880 return -EINVAL; 5881 5882 if (ieee->set_security) 5883 ieee->set_security(ieee->dev, &sec); 5884 else 5885 ret = -EOPNOTSUPP; 5886 5887 return ret; 5888} 5889 5890static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv, 5891 char *wpa_ie, int wpa_ie_len) 5892{ 5893 5894 struct ipw2100_wpa_assoc_frame frame; 5895 5896 frame.fixed_ie_mask = 0; 5897 5898 /* copy WPA IE */ 5899 memcpy(frame.var_ie, wpa_ie, wpa_ie_len); 5900 frame.var_ie_len = wpa_ie_len; 5901 5902 /* make sure WPA is enabled */ 5903 ipw2100_wpa_enable(priv, 1); 5904 ipw2100_set_wpa_ie(priv, &frame, 0); 5905} 5906 5907static void ipw_ethtool_get_drvinfo(struct net_device *dev, 5908 struct ethtool_drvinfo *info) 5909{ 5910 struct ipw2100_priv *priv = libipw_priv(dev); 5911 char fw_ver[64], ucode_ver[64]; 5912 5913 strcpy(info->driver, DRV_NAME); 5914 strcpy(info->version, DRV_VERSION); 5915 5916 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver)); 5917 ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver)); 5918 5919 snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s", 5920 fw_ver, priv->eeprom_version, ucode_ver); 5921 5922 strcpy(info->bus_info, pci_name(priv->pci_dev)); 5923} 5924 5925static u32 ipw2100_ethtool_get_link(struct net_device *dev) 5926{ 5927 struct ipw2100_priv *priv = libipw_priv(dev); 5928 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0; 5929} 5930 5931static const struct ethtool_ops ipw2100_ethtool_ops = { 5932 .get_link = ipw2100_ethtool_get_link, 5933 .get_drvinfo = ipw_ethtool_get_drvinfo, 5934}; 5935 5936static void ipw2100_hang_check(struct work_struct *work) 5937{ 5938 struct ipw2100_priv *priv = 5939 container_of(work, struct ipw2100_priv, hang_check.work); 5940 unsigned long flags; 5941 u32 rtc = 0xa5a5a5a5; 5942 u32 len = sizeof(rtc); 5943 int restart = 0; 5944 5945 spin_lock_irqsave(&priv->low_lock, flags); 5946 5947 if (priv->fatal_error != 0) { 5948 /* If fatal_error is set then we need to restart */ 5949 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n", 5950 priv->net_dev->name); 5951 5952 restart = 1; 5953 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) || 5954 (rtc == priv->last_rtc)) { 5955 /* Check if firmware is hung */ 5956 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n", 5957 priv->net_dev->name); 5958 5959 restart = 1; 5960 } 5961 5962 if (restart) { 5963 /* Kill timer */ 5964 priv->stop_hang_check = 1; 5965 priv->hangs++; 5966 5967 /* Restart the NIC */ 5968 schedule_reset(priv); 5969 } 5970 5971 priv->last_rtc = rtc; 5972 5973 if (!priv->stop_hang_check) 5974 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2); 5975 5976 spin_unlock_irqrestore(&priv->low_lock, flags); 5977} 5978 5979static void ipw2100_rf_kill(struct work_struct *work) 5980{ 5981 struct ipw2100_priv *priv = 5982 container_of(work, struct ipw2100_priv, rf_kill.work); 5983 unsigned long flags; 5984 5985 spin_lock_irqsave(&priv->low_lock, flags); 5986 5987 if (rf_kill_active(priv)) { 5988 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n"); 5989 if (!priv->stop_rf_kill) 5990 queue_delayed_work(priv->workqueue, &priv->rf_kill, 5991 round_jiffies_relative(HZ)); 5992 goto exit_unlock; 5993 } 5994 5995 /* RF Kill is now disabled, so bring the device back up */ 5996 5997 if (!(priv->status & STATUS_RF_KILL_MASK)) { 5998 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting " 5999 "device\n"); 6000 schedule_reset(priv); 6001 } else 6002 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still " 6003 "enabled\n"); 6004 6005 exit_unlock: 6006 spin_unlock_irqrestore(&priv->low_lock, flags); 6007} 6008 6009static void ipw2100_irq_tasklet(struct ipw2100_priv *priv); 6010 6011static const struct net_device_ops ipw2100_netdev_ops = { 6012 .ndo_open = ipw2100_open, 6013 .ndo_stop = ipw2100_close, 6014 .ndo_start_xmit = libipw_xmit, 6015 .ndo_change_mtu = libipw_change_mtu, 6016 .ndo_init = ipw2100_net_init, 6017 .ndo_tx_timeout = ipw2100_tx_timeout, 6018 .ndo_set_mac_address = ipw2100_set_address, 6019 .ndo_validate_addr = eth_validate_addr, 6020}; 6021 6022/* Look into using netdev destructor to shutdown ieee80211? */ 6023 6024static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev, 6025 void __iomem * base_addr, 6026 unsigned long mem_start, 6027 unsigned long mem_len) 6028{ 6029 struct ipw2100_priv *priv; 6030 struct net_device *dev; 6031 6032 dev = alloc_ieee80211(sizeof(struct ipw2100_priv), 0); 6033 if (!dev) 6034 return NULL; 6035 priv = libipw_priv(dev); 6036 priv->ieee = netdev_priv(dev); 6037 priv->pci_dev = pci_dev; 6038 priv->net_dev = dev; 6039 6040 priv->ieee->hard_start_xmit = ipw2100_tx; 6041 priv->ieee->set_security = shim__set_security; 6042 6043 priv->ieee->perfect_rssi = -20; 6044 priv->ieee->worst_rssi = -85; 6045 6046 dev->netdev_ops = &ipw2100_netdev_ops; 6047 dev->ethtool_ops = &ipw2100_ethtool_ops; 6048 dev->wireless_handlers = &ipw2100_wx_handler_def; 6049 priv->wireless_data.libipw = priv->ieee; 6050 dev->wireless_data = &priv->wireless_data; 6051 dev->watchdog_timeo = 3 * HZ; 6052 dev->irq = 0; 6053 6054 dev->base_addr = (unsigned long)base_addr; 6055 dev->mem_start = mem_start; 6056 dev->mem_end = dev->mem_start + mem_len - 1; 6057 6058 /* NOTE: We don't use the wireless_handlers hook 6059 * in dev as the system will start throwing WX requests 6060 * to us before we're actually initialized and it just 6061 * ends up causing problems. So, we just handle 6062 * the WX extensions through the ipw2100_ioctl interface */ 6063 6064 /* memset() puts everything to 0, so we only have explicitly set 6065 * those values that need to be something else */ 6066 6067 /* If power management is turned on, default to AUTO mode */ 6068 priv->power_mode = IPW_POWER_AUTO; 6069 6070#ifdef CONFIG_IPW2100_MONITOR 6071 priv->config |= CFG_CRC_CHECK; 6072#endif 6073 priv->ieee->wpa_enabled = 0; 6074 priv->ieee->drop_unencrypted = 0; 6075 priv->ieee->privacy_invoked = 0; 6076 priv->ieee->ieee802_1x = 1; 6077 6078 /* Set module parameters */ 6079 switch (network_mode) { 6080 case 1: 6081 priv->ieee->iw_mode = IW_MODE_ADHOC; 6082 break; 6083#ifdef CONFIG_IPW2100_MONITOR 6084 case 2: 6085 priv->ieee->iw_mode = IW_MODE_MONITOR; 6086 break; 6087#endif 6088 default: 6089 case 0: 6090 priv->ieee->iw_mode = IW_MODE_INFRA; 6091 break; 6092 } 6093 6094 if (disable == 1) 6095 priv->status |= STATUS_RF_KILL_SW; 6096 6097 if (channel != 0 && 6098 ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) { 6099 priv->config |= CFG_STATIC_CHANNEL; 6100 priv->channel = channel; 6101 } 6102 6103 if (associate) 6104 priv->config |= CFG_ASSOCIATE; 6105 6106 priv->beacon_interval = DEFAULT_BEACON_INTERVAL; 6107 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT; 6108 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT; 6109 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED; 6110 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED; 6111 priv->tx_power = IPW_TX_POWER_DEFAULT; 6112 priv->tx_rates = DEFAULT_TX_RATES; 6113 6114 strcpy(priv->nick, "ipw2100"); 6115 6116 spin_lock_init(&priv->low_lock); 6117 mutex_init(&priv->action_mutex); 6118 mutex_init(&priv->adapter_mutex); 6119 6120 init_waitqueue_head(&priv->wait_command_queue); 6121 6122 netif_carrier_off(dev); 6123 6124 INIT_LIST_HEAD(&priv->msg_free_list); 6125 INIT_LIST_HEAD(&priv->msg_pend_list); 6126 INIT_STAT(&priv->msg_free_stat); 6127 INIT_STAT(&priv->msg_pend_stat); 6128 6129 INIT_LIST_HEAD(&priv->tx_free_list); 6130 INIT_LIST_HEAD(&priv->tx_pend_list); 6131 INIT_STAT(&priv->tx_free_stat); 6132 INIT_STAT(&priv->tx_pend_stat); 6133 6134 INIT_LIST_HEAD(&priv->fw_pend_list); 6135 INIT_STAT(&priv->fw_pend_stat); 6136 6137 priv->workqueue = create_workqueue(DRV_NAME); 6138 6139 INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter); 6140 INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work); 6141 INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work); 6142 INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check); 6143 INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill); 6144 INIT_WORK(&priv->scan_event_now, ipw2100_scan_event_now); 6145 INIT_DELAYED_WORK(&priv->scan_event_later, ipw2100_scan_event_later); 6146 6147 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) 6148 ipw2100_irq_tasklet, (unsigned long)priv); 6149 6150 /* NOTE: We do not start the deferred work for status checks yet */ 6151 priv->stop_rf_kill = 1; 6152 priv->stop_hang_check = 1; 6153 6154 return dev; 6155} 6156 6157static int ipw2100_pci_init_one(struct pci_dev *pci_dev, 6158 const struct pci_device_id *ent) 6159{ 6160 unsigned long mem_start, mem_len, mem_flags; 6161 void __iomem *base_addr = NULL; 6162 struct net_device *dev = NULL; 6163 struct ipw2100_priv *priv = NULL; 6164 int err = 0; 6165 int registered = 0; 6166 u32 val; 6167 6168 IPW_DEBUG_INFO("enter\n"); 6169 6170 mem_start = pci_resource_start(pci_dev, 0); 6171 mem_len = pci_resource_len(pci_dev, 0); 6172 mem_flags = pci_resource_flags(pci_dev, 0); 6173 6174 if ((mem_flags & IORESOURCE_MEM) != IORESOURCE_MEM) { 6175 IPW_DEBUG_INFO("weird - resource type is not memory\n"); 6176 err = -ENODEV; 6177 goto fail; 6178 } 6179 6180 base_addr = ioremap_nocache(mem_start, mem_len); 6181 if (!base_addr) { 6182 printk(KERN_WARNING DRV_NAME 6183 "Error calling ioremap_nocache.\n"); 6184 err = -EIO; 6185 goto fail; 6186 } 6187 6188 /* allocate and initialize our net_device */ 6189 dev = ipw2100_alloc_device(pci_dev, base_addr, mem_start, mem_len); 6190 if (!dev) { 6191 printk(KERN_WARNING DRV_NAME 6192 "Error calling ipw2100_alloc_device.\n"); 6193 err = -ENOMEM; 6194 goto fail; 6195 } 6196 6197 /* set up PCI mappings for device */ 6198 err = pci_enable_device(pci_dev); 6199 if (err) { 6200 printk(KERN_WARNING DRV_NAME 6201 "Error calling pci_enable_device.\n"); 6202 return err; 6203 } 6204 6205 priv = libipw_priv(dev); 6206 6207 pci_set_master(pci_dev); 6208 pci_set_drvdata(pci_dev, priv); 6209 6210 err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)); 6211 if (err) { 6212 printk(KERN_WARNING DRV_NAME 6213 "Error calling pci_set_dma_mask.\n"); 6214 pci_disable_device(pci_dev); 6215 return err; 6216 } 6217 6218 err = pci_request_regions(pci_dev, DRV_NAME); 6219 if (err) { 6220 printk(KERN_WARNING DRV_NAME 6221 "Error calling pci_request_regions.\n"); 6222 pci_disable_device(pci_dev); 6223 return err; 6224 } 6225 6226 /* We disable the RETRY_TIMEOUT register (0x41) to keep 6227 * PCI Tx retries from interfering with C3 CPU state */ 6228 pci_read_config_dword(pci_dev, 0x40, &val); 6229 if ((val & 0x0000ff00) != 0) 6230 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff); 6231 6232 pci_set_power_state(pci_dev, PCI_D0); 6233 6234 if (!ipw2100_hw_is_adapter_in_system(dev)) { 6235 printk(KERN_WARNING DRV_NAME 6236 "Device not found via register read.\n"); 6237 err = -ENODEV; 6238 goto fail; 6239 } 6240 6241 SET_NETDEV_DEV(dev, &pci_dev->dev); 6242 6243 /* Force interrupts to be shut off on the device */ 6244 priv->status |= STATUS_INT_ENABLED; 6245 ipw2100_disable_interrupts(priv); 6246 6247 /* Allocate and initialize the Tx/Rx queues and lists */ 6248 if (ipw2100_queues_allocate(priv)) { 6249 printk(KERN_WARNING DRV_NAME 6250 "Error calling ipw2100_queues_allocate.\n"); 6251 err = -ENOMEM; 6252 goto fail; 6253 } 6254 ipw2100_queues_initialize(priv); 6255 6256 err = request_irq(pci_dev->irq, 6257 ipw2100_interrupt, IRQF_SHARED, dev->name, priv); 6258 if (err) { 6259 printk(KERN_WARNING DRV_NAME 6260 "Error calling request_irq: %d.\n", pci_dev->irq); 6261 goto fail; 6262 } 6263 dev->irq = pci_dev->irq; 6264 6265 IPW_DEBUG_INFO("Attempting to register device...\n"); 6266 6267 printk(KERN_INFO DRV_NAME 6268 ": Detected Intel PRO/Wireless 2100 Network Connection\n"); 6269 6270 /* Bring up the interface. Pre 0.46, after we registered the 6271 * network device we would call ipw2100_up. This introduced a race 6272 * condition with newer hotplug configurations (network was coming 6273 * up and making calls before the device was initialized). 6274 * 6275 * If we called ipw2100_up before we registered the device, then the 6276 * device name wasn't registered. So, we instead use the net_dev->init 6277 * member to call a function that then just turns and calls ipw2100_up. 6278 * net_dev->init is called after name allocation but before the 6279 * notifier chain is called */ 6280 err = register_netdev(dev); 6281 if (err) { 6282 printk(KERN_WARNING DRV_NAME 6283 "Error calling register_netdev.\n"); 6284 goto fail; 6285 } 6286 6287 mutex_lock(&priv->action_mutex); 6288 registered = 1; 6289 6290 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev)); 6291 6292 /* perform this after register_netdev so that dev->name is set */ 6293 err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group); 6294 if (err) 6295 goto fail_unlock; 6296 6297 /* If the RF Kill switch is disabled, go ahead and complete the 6298 * startup sequence */ 6299 if (!(priv->status & STATUS_RF_KILL_MASK)) { 6300 /* Enable the adapter - sends HOST_COMPLETE */ 6301 if (ipw2100_enable_adapter(priv)) { 6302 printk(KERN_WARNING DRV_NAME 6303 ": %s: failed in call to enable adapter.\n", 6304 priv->net_dev->name); 6305 ipw2100_hw_stop_adapter(priv); 6306 err = -EIO; 6307 goto fail_unlock; 6308 } 6309 6310 /* Start a scan . . . */ 6311 ipw2100_set_scan_options(priv); 6312 ipw2100_start_scan(priv); 6313 } 6314 6315 IPW_DEBUG_INFO("exit\n"); 6316 6317 priv->status |= STATUS_INITIALIZED; 6318 6319 mutex_unlock(&priv->action_mutex); 6320 6321 return 0; 6322 6323 fail_unlock: 6324 mutex_unlock(&priv->action_mutex); 6325 6326 fail: 6327 if (dev) { 6328 if (registered) 6329 unregister_netdev(dev); 6330 6331 ipw2100_hw_stop_adapter(priv); 6332 6333 ipw2100_disable_interrupts(priv); 6334 6335 if (dev->irq) 6336 free_irq(dev->irq, priv); 6337 6338 ipw2100_kill_workqueue(priv); 6339 6340 /* These are safe to call even if they weren't allocated */ 6341 ipw2100_queues_free(priv); 6342 sysfs_remove_group(&pci_dev->dev.kobj, 6343 &ipw2100_attribute_group); 6344 6345 free_ieee80211(dev, 0); 6346 pci_set_drvdata(pci_dev, NULL); 6347 } 6348 6349 if (base_addr) 6350 iounmap(base_addr); 6351 6352 pci_release_regions(pci_dev); 6353 pci_disable_device(pci_dev); 6354 6355 return err; 6356} 6357 6358static void __devexit ipw2100_pci_remove_one(struct pci_dev *pci_dev) 6359{ 6360 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev); 6361 struct net_device *dev; 6362 6363 if (priv) { 6364 mutex_lock(&priv->action_mutex); 6365 6366 priv->status &= ~STATUS_INITIALIZED; 6367 6368 dev = priv->net_dev; 6369 sysfs_remove_group(&pci_dev->dev.kobj, 6370 &ipw2100_attribute_group); 6371 6372#ifdef CONFIG_PM 6373 if (ipw2100_firmware.version) 6374 ipw2100_release_firmware(priv, &ipw2100_firmware); 6375#endif 6376 /* Take down the hardware */ 6377 ipw2100_down(priv); 6378 6379 /* Release the mutex so that the network subsystem can 6380 * complete any needed calls into the driver... */ 6381 mutex_unlock(&priv->action_mutex); 6382 6383 /* Unregister the device first - this results in close() 6384 * being called if the device is open. If we free storage 6385 * first, then close() will crash. */ 6386 unregister_netdev(dev); 6387 6388 /* ipw2100_down will ensure that there is no more pending work 6389 * in the workqueue's, so we can safely remove them now. */ 6390 ipw2100_kill_workqueue(priv); 6391 6392 ipw2100_queues_free(priv); 6393 6394 /* Free potential debugging firmware snapshot */ 6395 ipw2100_snapshot_free(priv); 6396 6397 if (dev->irq) 6398 free_irq(dev->irq, priv); 6399 6400 if (dev->base_addr) 6401 iounmap((void __iomem *)dev->base_addr); 6402 6403 free_ieee80211(dev, 0); 6404 } 6405 6406 pci_release_regions(pci_dev); 6407 pci_disable_device(pci_dev); 6408 6409 IPW_DEBUG_INFO("exit\n"); 6410} 6411 6412#ifdef CONFIG_PM 6413static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state) 6414{ 6415 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev); 6416 struct net_device *dev = priv->net_dev; 6417 6418 IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name); 6419 6420 mutex_lock(&priv->action_mutex); 6421 if (priv->status & STATUS_INITIALIZED) { 6422 /* Take down the device; powers it off, etc. */ 6423 ipw2100_down(priv); 6424 } 6425 6426 /* Remove the PRESENT state of the device */ 6427 netif_device_detach(dev); 6428 6429 pci_save_state(pci_dev); 6430 pci_disable_device(pci_dev); 6431 pci_set_power_state(pci_dev, PCI_D3hot); 6432 6433 priv->suspend_at = get_seconds(); 6434 6435 mutex_unlock(&priv->action_mutex); 6436 6437 return 0; 6438} 6439 6440static int ipw2100_resume(struct pci_dev *pci_dev) 6441{ 6442 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev); 6443 struct net_device *dev = priv->net_dev; 6444 int err; 6445 u32 val; 6446 6447 if (IPW2100_PM_DISABLED) 6448 return 0; 6449 6450 mutex_lock(&priv->action_mutex); 6451 6452 IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name); 6453 6454 pci_set_power_state(pci_dev, PCI_D0); 6455 err = pci_enable_device(pci_dev); 6456 if (err) { 6457 printk(KERN_ERR "%s: pci_enable_device failed on resume\n", 6458 dev->name); 6459 mutex_unlock(&priv->action_mutex); 6460 return err; 6461 } 6462 pci_restore_state(pci_dev); 6463 6464 /* 6465 * Suspend/Resume resets the PCI configuration space, so we have to 6466 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries 6467 * from interfering with C3 CPU state. pci_restore_state won't help 6468 * here since it only restores the first 64 bytes pci config header. 6469 */ 6470 pci_read_config_dword(pci_dev, 0x40, &val); 6471 if ((val & 0x0000ff00) != 0) 6472 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff); 6473 6474 /* Set the device back into the PRESENT state; this will also wake 6475 * the queue of needed */ 6476 netif_device_attach(dev); 6477 6478 priv->suspend_time = get_seconds() - priv->suspend_at; 6479 6480 /* Bring the device back up */ 6481 if (!(priv->status & STATUS_RF_KILL_SW)) 6482 ipw2100_up(priv, 0); 6483 6484 mutex_unlock(&priv->action_mutex); 6485 6486 return 0; 6487} 6488#endif 6489 6490#define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x } 6491 6492static struct pci_device_id ipw2100_pci_id_table[] __devinitdata = { 6493 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */ 6494 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */ 6495 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */ 6496 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */ 6497 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */ 6498 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */ 6499 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */ 6500 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */ 6501 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */ 6502 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */ 6503 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */ 6504 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */ 6505 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */ 6506 6507 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */ 6508 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */ 6509 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */ 6510 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */ 6511 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */ 6512 6513 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */ 6514 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */ 6515 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */ 6516 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */ 6517 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */ 6518 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */ 6519 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */ 6520 6521 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */ 6522 6523 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */ 6524 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */ 6525 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */ 6526 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */ 6527 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */ 6528 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */ 6529 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */ 6530 6531 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */ 6532 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */ 6533 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */ 6534 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */ 6535 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */ 6536 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */ 6537 6538 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */ 6539 {0,}, 6540}; 6541 6542MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table); 6543 6544static struct pci_driver ipw2100_pci_driver = { 6545 .name = DRV_NAME, 6546 .id_table = ipw2100_pci_id_table, 6547 .probe = ipw2100_pci_init_one, 6548 .remove = __devexit_p(ipw2100_pci_remove_one), 6549#ifdef CONFIG_PM 6550 .suspend = ipw2100_suspend, 6551 .resume = ipw2100_resume, 6552#endif 6553}; 6554 6555/** 6556 * Initialize the ipw2100 driver/module 6557 * 6558 * @returns 0 if ok, < 0 errno node con error. 6559 * 6560 * Note: we cannot init the /proc stuff until the PCI driver is there, 6561 * or we risk an unlikely race condition on someone accessing 6562 * uninitialized data in the PCI dev struct through /proc. 6563 */ 6564static int __init ipw2100_init(void) 6565{ 6566 int ret; 6567 6568 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION); 6569 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT); 6570 6571 ret = pci_register_driver(&ipw2100_pci_driver); 6572 if (ret) 6573 goto out; 6574 6575 pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", 6576 PM_QOS_DEFAULT_VALUE); 6577#ifdef CONFIG_IPW2100_DEBUG 6578 ipw2100_debug_level = debug; 6579 ret = driver_create_file(&ipw2100_pci_driver.driver, 6580 &driver_attr_debug_level); 6581#endif 6582 6583out: 6584 return ret; 6585} 6586 6587/** 6588 * Cleanup ipw2100 driver registration 6589 */ 6590static void __exit ipw2100_exit(void) 6591{ 6592 /* FIXME: IPG: check that we have no instances of the devices open */ 6593#ifdef CONFIG_IPW2100_DEBUG 6594 driver_remove_file(&ipw2100_pci_driver.driver, 6595 &driver_attr_debug_level); 6596#endif 6597 pci_unregister_driver(&ipw2100_pci_driver); 6598 pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100"); 6599} 6600 6601module_init(ipw2100_init); 6602module_exit(ipw2100_exit); 6603 6604#define WEXT_USECHANNELS 1 6605 6606static const long ipw2100_frequencies[] = { 6607 2412, 2417, 2422, 2427, 6608 2432, 2437, 2442, 2447, 6609 2452, 2457, 2462, 2467, 6610 2472, 2484 6611}; 6612 6613#define FREQ_COUNT ARRAY_SIZE(ipw2100_frequencies) 6614 6615static const long ipw2100_rates_11b[] = { 6616 1000000, 6617 2000000, 6618 5500000, 6619 11000000 6620}; 6621 6622#define RATE_COUNT ARRAY_SIZE(ipw2100_rates_11b) 6623 6624static int ipw2100_wx_get_name(struct net_device *dev, 6625 struct iw_request_info *info, 6626 union iwreq_data *wrqu, char *extra) 6627{ 6628 /* 6629 * This can be called at any time. No action lock required 6630 */ 6631 6632 struct ipw2100_priv *priv = libipw_priv(dev); 6633 if (!(priv->status & STATUS_ASSOCIATED)) 6634 strcpy(wrqu->name, "unassociated"); 6635 else 6636 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b"); 6637 6638 IPW_DEBUG_WX("Name: %s\n", wrqu->name); 6639 return 0; 6640} 6641 6642static int ipw2100_wx_set_freq(struct net_device *dev, 6643 struct iw_request_info *info, 6644 union iwreq_data *wrqu, char *extra) 6645{ 6646 struct ipw2100_priv *priv = libipw_priv(dev); 6647 struct iw_freq *fwrq = &wrqu->freq; 6648 int err = 0; 6649 6650 if (priv->ieee->iw_mode == IW_MODE_INFRA) 6651 return -EOPNOTSUPP; 6652 6653 mutex_lock(&priv->action_mutex); 6654 if (!(priv->status & STATUS_INITIALIZED)) { 6655 err = -EIO; 6656 goto done; 6657 } 6658 6659 /* if setting by freq convert to channel */ 6660 if (fwrq->e == 1) { 6661 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) { 6662 int f = fwrq->m / 100000; 6663 int c = 0; 6664 6665 while ((c < REG_MAX_CHANNEL) && 6666 (f != ipw2100_frequencies[c])) 6667 c++; 6668 6669 /* hack to fall through */ 6670 fwrq->e = 0; 6671 fwrq->m = c + 1; 6672 } 6673 } 6674 6675 if (fwrq->e > 0 || fwrq->m > 1000) { 6676 err = -EOPNOTSUPP; 6677 goto done; 6678 } else { /* Set the channel */ 6679 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m); 6680 err = ipw2100_set_channel(priv, fwrq->m, 0); 6681 } 6682 6683 done: 6684 mutex_unlock(&priv->action_mutex); 6685 return err; 6686} 6687 6688static int ipw2100_wx_get_freq(struct net_device *dev, 6689 struct iw_request_info *info, 6690 union iwreq_data *wrqu, char *extra) 6691{ 6692 /* 6693 * This can be called at any time. No action lock required 6694 */ 6695 6696 struct ipw2100_priv *priv = libipw_priv(dev); 6697 6698 wrqu->freq.e = 0; 6699 6700 /* If we are associated, trying to associate, or have a statically 6701 * configured CHANNEL then return that; otherwise return ANY */ 6702 if (priv->config & CFG_STATIC_CHANNEL || 6703 priv->status & STATUS_ASSOCIATED) 6704 wrqu->freq.m = priv->channel; 6705 else 6706 wrqu->freq.m = 0; 6707 6708 IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel); 6709 return 0; 6710 6711} 6712 6713static int ipw2100_wx_set_mode(struct net_device *dev, 6714 struct iw_request_info *info, 6715 union iwreq_data *wrqu, char *extra) 6716{ 6717 struct ipw2100_priv *priv = libipw_priv(dev); 6718 int err = 0; 6719 6720 IPW_DEBUG_WX("SET Mode -> %d \n", wrqu->mode); 6721 6722 if (wrqu->mode == priv->ieee->iw_mode) 6723 return 0; 6724 6725 mutex_lock(&priv->action_mutex); 6726 if (!(priv->status & STATUS_INITIALIZED)) { 6727 err = -EIO; 6728 goto done; 6729 } 6730 6731 switch (wrqu->mode) { 6732#ifdef CONFIG_IPW2100_MONITOR 6733 case IW_MODE_MONITOR: 6734 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR); 6735 break; 6736#endif /* CONFIG_IPW2100_MONITOR */ 6737 case IW_MODE_ADHOC: 6738 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC); 6739 break; 6740 case IW_MODE_INFRA: 6741 case IW_MODE_AUTO: 6742 default: 6743 err = ipw2100_switch_mode(priv, IW_MODE_INFRA); 6744 break; 6745 } 6746 6747 done: 6748 mutex_unlock(&priv->action_mutex); 6749 return err; 6750} 6751 6752static int ipw2100_wx_get_mode(struct net_device *dev, 6753 struct iw_request_info *info, 6754 union iwreq_data *wrqu, char *extra) 6755{ 6756 /* 6757 * This can be called at any time. No action lock required 6758 */ 6759 6760 struct ipw2100_priv *priv = libipw_priv(dev); 6761 6762 wrqu->mode = priv->ieee->iw_mode; 6763 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode); 6764 6765 return 0; 6766} 6767 6768#define POWER_MODES 5 6769 6770/* Values are in microsecond */ 6771static const s32 timeout_duration[POWER_MODES] = { 6772 350000, 6773 250000, 6774 75000, 6775 37000, 6776 25000, 6777}; 6778 6779static const s32 period_duration[POWER_MODES] = { 6780 400000, 6781 700000, 6782 1000000, 6783 1000000, 6784 1000000 6785}; 6786 6787static int ipw2100_wx_get_range(struct net_device *dev, 6788 struct iw_request_info *info, 6789 union iwreq_data *wrqu, char *extra) 6790{ 6791 /* 6792 * This can be called at any time. No action lock required 6793 */ 6794 6795 struct ipw2100_priv *priv = libipw_priv(dev); 6796 struct iw_range *range = (struct iw_range *)extra; 6797 u16 val; 6798 int i, level; 6799 6800 wrqu->data.length = sizeof(*range); 6801 memset(range, 0, sizeof(*range)); 6802 6803 /* Let's try to keep this struct in the same order as in 6804 * linux/include/wireless.h 6805 */ 6806 6807 /* TODO: See what values we can set, and remove the ones we can't 6808 * set, or fill them with some default data. 6809 */ 6810 6811 /* ~5 Mb/s real (802.11b) */ 6812 range->throughput = 5 * 1000 * 1000; 6813 6814// range->sensitivity; /* signal level threshold range */ 6815 6816 range->max_qual.qual = 100; 6817 /* TODO: Find real max RSSI and stick here */ 6818 range->max_qual.level = 0; 6819 range->max_qual.noise = 0; 6820 range->max_qual.updated = 7; /* Updated all three */ 6821 6822 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */ 6823 /* TODO: Find real 'good' to 'bad' threshol value for RSSI */ 6824 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM; 6825 range->avg_qual.noise = 0; 6826 range->avg_qual.updated = 7; /* Updated all three */ 6827 6828 range->num_bitrates = RATE_COUNT; 6829 6830 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) { 6831 range->bitrate[i] = ipw2100_rates_11b[i]; 6832 } 6833 6834 range->min_rts = MIN_RTS_THRESHOLD; 6835 range->max_rts = MAX_RTS_THRESHOLD; 6836 range->min_frag = MIN_FRAG_THRESHOLD; 6837 range->max_frag = MAX_FRAG_THRESHOLD; 6838 6839 range->min_pmp = period_duration[0]; /* Minimal PM period */ 6840 range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */ 6841 range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */ 6842 range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */ 6843 6844 /* How to decode max/min PM period */ 6845 range->pmp_flags = IW_POWER_PERIOD; 6846 /* How to decode max/min PM period */ 6847 range->pmt_flags = IW_POWER_TIMEOUT; 6848 /* What PM options are supported */ 6849 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD; 6850 6851 range->encoding_size[0] = 5; 6852 range->encoding_size[1] = 13; /* Different token sizes */ 6853 range->num_encoding_sizes = 2; /* Number of entry in the list */ 6854 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */ 6855// range->encoding_login_index; /* token index for login token */ 6856 6857 if (priv->ieee->iw_mode == IW_MODE_ADHOC) { 6858 range->txpower_capa = IW_TXPOW_DBM; 6859 range->num_txpower = IW_MAX_TXPOWER; 6860 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16); 6861 i < IW_MAX_TXPOWER; 6862 i++, level -= 6863 ((IPW_TX_POWER_MAX_DBM - 6864 IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1)) 6865 range->txpower[i] = level / 16; 6866 } else { 6867 range->txpower_capa = 0; 6868 range->num_txpower = 0; 6869 } 6870 6871 /* Set the Wireless Extension versions */ 6872 range->we_version_compiled = WIRELESS_EXT; 6873 range->we_version_source = 18; 6874 6875// range->retry_capa; /* What retry options are supported */ 6876// range->retry_flags; /* How to decode max/min retry limit */ 6877// range->r_time_flags; /* How to decode max/min retry life */ 6878// range->min_retry; /* Minimal number of retries */ 6879// range->max_retry; /* Maximal number of retries */ 6880// range->min_r_time; /* Minimal retry lifetime */ 6881// range->max_r_time; /* Maximal retry lifetime */ 6882 6883 range->num_channels = FREQ_COUNT; 6884 6885 val = 0; 6886 for (i = 0; i < FREQ_COUNT; i++) { 6887 // TODO: Include only legal frequencies for some countries 6888// if (local->channel_mask & (1 << i)) { 6889 range->freq[val].i = i + 1; 6890 range->freq[val].m = ipw2100_frequencies[i] * 100000; 6891 range->freq[val].e = 1; 6892 val++; 6893// } 6894 if (val == IW_MAX_FREQUENCIES) 6895 break; 6896 } 6897 range->num_frequency = val; 6898 6899 /* Event capability (kernel + driver) */ 6900 range->event_capa[0] = (IW_EVENT_CAPA_K_0 | 6901 IW_EVENT_CAPA_MASK(SIOCGIWAP)); 6902 range->event_capa[1] = IW_EVENT_CAPA_K_1; 6903 6904 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | 6905 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; 6906 6907 IPW_DEBUG_WX("GET Range\n"); 6908 6909 return 0; 6910} 6911 6912static int ipw2100_wx_set_wap(struct net_device *dev, 6913 struct iw_request_info *info, 6914 union iwreq_data *wrqu, char *extra) 6915{ 6916 struct ipw2100_priv *priv = libipw_priv(dev); 6917 int err = 0; 6918 6919 static const unsigned char any[] = { 6920 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 6921 }; 6922 static const unsigned char off[] = { 6923 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 6924 }; 6925 6926 // sanity checks 6927 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) 6928 return -EINVAL; 6929 6930 mutex_lock(&priv->action_mutex); 6931 if (!(priv->status & STATUS_INITIALIZED)) { 6932 err = -EIO; 6933 goto done; 6934 } 6935 6936 if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) || 6937 !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) { 6938 /* we disable mandatory BSSID association */ 6939 IPW_DEBUG_WX("exit - disable mandatory BSSID\n"); 6940 priv->config &= ~CFG_STATIC_BSSID; 6941 err = ipw2100_set_mandatory_bssid(priv, NULL, 0); 6942 goto done; 6943 } 6944 6945 priv->config |= CFG_STATIC_BSSID; 6946 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN); 6947 6948 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0); 6949 6950 IPW_DEBUG_WX("SET BSSID -> %pM\n", wrqu->ap_addr.sa_data); 6951 6952 done: 6953 mutex_unlock(&priv->action_mutex); 6954 return err; 6955} 6956 6957static int ipw2100_wx_get_wap(struct net_device *dev, 6958 struct iw_request_info *info, 6959 union iwreq_data *wrqu, char *extra) 6960{ 6961 /* 6962 * This can be called at any time. No action lock required 6963 */ 6964 6965 struct ipw2100_priv *priv = libipw_priv(dev); 6966 6967 /* If we are associated, trying to associate, or have a statically 6968 * configured BSSID then return that; otherwise return ANY */ 6969 if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) { 6970 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 6971 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN); 6972 } else 6973 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN); 6974 6975 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", wrqu->ap_addr.sa_data); 6976 return 0; 6977} 6978 6979static int ipw2100_wx_set_essid(struct net_device *dev, 6980 struct iw_request_info *info, 6981 union iwreq_data *wrqu, char *extra) 6982{ 6983 struct ipw2100_priv *priv = libipw_priv(dev); 6984 char *essid = ""; /* ANY */ 6985 int length = 0; 6986 int err = 0; 6987 DECLARE_SSID_BUF(ssid); 6988 6989 mutex_lock(&priv->action_mutex); 6990 if (!(priv->status & STATUS_INITIALIZED)) { 6991 err = -EIO; 6992 goto done; 6993 } 6994 6995 if (wrqu->essid.flags && wrqu->essid.length) { 6996 length = wrqu->essid.length; 6997 essid = extra; 6998 } 6999 7000 if (length == 0) { 7001 IPW_DEBUG_WX("Setting ESSID to ANY\n"); 7002 priv->config &= ~CFG_STATIC_ESSID; 7003 err = ipw2100_set_essid(priv, NULL, 0, 0); 7004 goto done; 7005 } 7006 7007 length = min(length, IW_ESSID_MAX_SIZE); 7008 7009 priv->config |= CFG_STATIC_ESSID; 7010 7011 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) { 7012 IPW_DEBUG_WX("ESSID set to current ESSID.\n"); 7013 err = 0; 7014 goto done; 7015 } 7016 7017 IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", 7018 print_ssid(ssid, essid, length), length); 7019 7020 priv->essid_len = length; 7021 memcpy(priv->essid, essid, priv->essid_len); 7022 7023 err = ipw2100_set_essid(priv, essid, length, 0); 7024 7025 done: 7026 mutex_unlock(&priv->action_mutex); 7027 return err; 7028} 7029 7030static int ipw2100_wx_get_essid(struct net_device *dev, 7031 struct iw_request_info *info, 7032 union iwreq_data *wrqu, char *extra) 7033{ 7034 /* 7035 * This can be called at any time. No action lock required 7036 */ 7037 7038 struct ipw2100_priv *priv = libipw_priv(dev); 7039 DECLARE_SSID_BUF(ssid); 7040 7041 /* If we are associated, trying to associate, or have a statically 7042 * configured ESSID then return that; otherwise return ANY */ 7043 if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) { 7044 IPW_DEBUG_WX("Getting essid: '%s'\n", 7045 print_ssid(ssid, priv->essid, priv->essid_len)); 7046 memcpy(extra, priv->essid, priv->essid_len); 7047 wrqu->essid.length = priv->essid_len; 7048 wrqu->essid.flags = 1; /* active */ 7049 } else { 7050 IPW_DEBUG_WX("Getting essid: ANY\n"); 7051 wrqu->essid.length = 0; 7052 wrqu->essid.flags = 0; /* active */ 7053 } 7054 7055 return 0; 7056} 7057 7058static int ipw2100_wx_set_nick(struct net_device *dev, 7059 struct iw_request_info *info, 7060 union iwreq_data *wrqu, char *extra) 7061{ 7062 /* 7063 * This can be called at any time. No action lock required 7064 */ 7065 7066 struct ipw2100_priv *priv = libipw_priv(dev); 7067 7068 if (wrqu->data.length > IW_ESSID_MAX_SIZE) 7069 return -E2BIG; 7070 7071 wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick)); 7072 memset(priv->nick, 0, sizeof(priv->nick)); 7073 memcpy(priv->nick, extra, wrqu->data.length); 7074 7075 IPW_DEBUG_WX("SET Nickname -> %s \n", priv->nick); 7076 7077 return 0; 7078} 7079 7080static int ipw2100_wx_get_nick(struct net_device *dev, 7081 struct iw_request_info *info, 7082 union iwreq_data *wrqu, char *extra) 7083{ 7084 /* 7085 * This can be called at any time. No action lock required 7086 */ 7087 7088 struct ipw2100_priv *priv = libipw_priv(dev); 7089 7090 wrqu->data.length = strlen(priv->nick); 7091 memcpy(extra, priv->nick, wrqu->data.length); 7092 wrqu->data.flags = 1; /* active */ 7093 7094 IPW_DEBUG_WX("GET Nickname -> %s \n", extra); 7095 7096 return 0; 7097} 7098 7099static int ipw2100_wx_set_rate(struct net_device *dev, 7100 struct iw_request_info *info, 7101 union iwreq_data *wrqu, char *extra) 7102{ 7103 struct ipw2100_priv *priv = libipw_priv(dev); 7104 u32 target_rate = wrqu->bitrate.value; 7105 u32 rate; 7106 int err = 0; 7107 7108 mutex_lock(&priv->action_mutex); 7109 if (!(priv->status & STATUS_INITIALIZED)) { 7110 err = -EIO; 7111 goto done; 7112 } 7113 7114 rate = 0; 7115 7116 if (target_rate == 1000000 || 7117 (!wrqu->bitrate.fixed && target_rate > 1000000)) 7118 rate |= TX_RATE_1_MBIT; 7119 if (target_rate == 2000000 || 7120 (!wrqu->bitrate.fixed && target_rate > 2000000)) 7121 rate |= TX_RATE_2_MBIT; 7122 if (target_rate == 5500000 || 7123 (!wrqu->bitrate.fixed && target_rate > 5500000)) 7124 rate |= TX_RATE_5_5_MBIT; 7125 if (target_rate == 11000000 || 7126 (!wrqu->bitrate.fixed && target_rate > 11000000)) 7127 rate |= TX_RATE_11_MBIT; 7128 if (rate == 0) 7129 rate = DEFAULT_TX_RATES; 7130 7131 err = ipw2100_set_tx_rates(priv, rate, 0); 7132 7133 IPW_DEBUG_WX("SET Rate -> %04X \n", rate); 7134 done: 7135 mutex_unlock(&priv->action_mutex); 7136 return err; 7137} 7138 7139static int ipw2100_wx_get_rate(struct net_device *dev, 7140 struct iw_request_info *info, 7141 union iwreq_data *wrqu, char *extra) 7142{ 7143 struct ipw2100_priv *priv = libipw_priv(dev); 7144 int val; 7145 unsigned int len = sizeof(val); 7146 int err = 0; 7147 7148 if (!(priv->status & STATUS_ENABLED) || 7149 priv->status & STATUS_RF_KILL_MASK || 7150 !(priv->status & STATUS_ASSOCIATED)) { 7151 wrqu->bitrate.value = 0; 7152 return 0; 7153 } 7154 7155 mutex_lock(&priv->action_mutex); 7156 if (!(priv->status & STATUS_INITIALIZED)) { 7157 err = -EIO; 7158 goto done; 7159 } 7160 7161 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len); 7162 if (err) { 7163 IPW_DEBUG_WX("failed querying ordinals.\n"); 7164 goto done; 7165 } 7166 7167 switch (val & TX_RATE_MASK) { 7168 case TX_RATE_1_MBIT: 7169 wrqu->bitrate.value = 1000000; 7170 break; 7171 case TX_RATE_2_MBIT: 7172 wrqu->bitrate.value = 2000000; 7173 break; 7174 case TX_RATE_5_5_MBIT: 7175 wrqu->bitrate.value = 5500000; 7176 break; 7177 case TX_RATE_11_MBIT: 7178 wrqu->bitrate.value = 11000000; 7179 break; 7180 default: 7181 wrqu->bitrate.value = 0; 7182 } 7183 7184 IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value); 7185 7186 done: 7187 mutex_unlock(&priv->action_mutex); 7188 return err; 7189} 7190 7191static int ipw2100_wx_set_rts(struct net_device *dev, 7192 struct iw_request_info *info, 7193 union iwreq_data *wrqu, char *extra) 7194{ 7195 struct ipw2100_priv *priv = libipw_priv(dev); 7196 int value, err; 7197 7198 /* Auto RTS not yet supported */ 7199 if (wrqu->rts.fixed == 0) 7200 return -EINVAL; 7201 7202 mutex_lock(&priv->action_mutex); 7203 if (!(priv->status & STATUS_INITIALIZED)) { 7204 err = -EIO; 7205 goto done; 7206 } 7207 7208 if (wrqu->rts.disabled) 7209 value = priv->rts_threshold | RTS_DISABLED; 7210 else { 7211 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) { 7212 err = -EINVAL; 7213 goto done; 7214 } 7215 value = wrqu->rts.value; 7216 } 7217 7218 err = ipw2100_set_rts_threshold(priv, value); 7219 7220 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X \n", value); 7221 done: 7222 mutex_unlock(&priv->action_mutex); 7223 return err; 7224} 7225 7226static int ipw2100_wx_get_rts(struct net_device *dev, 7227 struct iw_request_info *info, 7228 union iwreq_data *wrqu, char *extra) 7229{ 7230 /* 7231 * This can be called at any time. No action lock required 7232 */ 7233 7234 struct ipw2100_priv *priv = libipw_priv(dev); 7235 7236 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED; 7237 wrqu->rts.fixed = 1; /* no auto select */ 7238 7239 /* If RTS is set to the default value, then it is disabled */ 7240 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0; 7241 7242 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X \n", wrqu->rts.value); 7243 7244 return 0; 7245} 7246 7247static int ipw2100_wx_set_txpow(struct net_device *dev, 7248 struct iw_request_info *info, 7249 union iwreq_data *wrqu, char *extra) 7250{ 7251 struct ipw2100_priv *priv = libipw_priv(dev); 7252 int err = 0, value; 7253 7254 if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled)) 7255 return -EINPROGRESS; 7256 7257 if (priv->ieee->iw_mode != IW_MODE_ADHOC) 7258 return 0; 7259 7260 if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 7261 return -EINVAL; 7262 7263 if (wrqu->txpower.fixed == 0) 7264 value = IPW_TX_POWER_DEFAULT; 7265 else { 7266 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM || 7267 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM) 7268 return -EINVAL; 7269 7270 value = wrqu->txpower.value; 7271 } 7272 7273 mutex_lock(&priv->action_mutex); 7274 if (!(priv->status & STATUS_INITIALIZED)) { 7275 err = -EIO; 7276 goto done; 7277 } 7278 7279 err = ipw2100_set_tx_power(priv, value); 7280 7281 IPW_DEBUG_WX("SET TX Power -> %d \n", value); 7282 7283 done: 7284 mutex_unlock(&priv->action_mutex); 7285 return err; 7286} 7287 7288static int ipw2100_wx_get_txpow(struct net_device *dev, 7289 struct iw_request_info *info, 7290 union iwreq_data *wrqu, char *extra) 7291{ 7292 /* 7293 * This can be called at any time. No action lock required 7294 */ 7295 7296 struct ipw2100_priv *priv = libipw_priv(dev); 7297 7298 wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0; 7299 7300 if (priv->tx_power == IPW_TX_POWER_DEFAULT) { 7301 wrqu->txpower.fixed = 0; 7302 wrqu->txpower.value = IPW_TX_POWER_MAX_DBM; 7303 } else { 7304 wrqu->txpower.fixed = 1; 7305 wrqu->txpower.value = priv->tx_power; 7306 } 7307 7308 wrqu->txpower.flags = IW_TXPOW_DBM; 7309 7310 IPW_DEBUG_WX("GET TX Power -> %d \n", wrqu->txpower.value); 7311 7312 return 0; 7313} 7314 7315static int ipw2100_wx_set_frag(struct net_device *dev, 7316 struct iw_request_info *info, 7317 union iwreq_data *wrqu, char *extra) 7318{ 7319 /* 7320 * This can be called at any time. No action lock required 7321 */ 7322 7323 struct ipw2100_priv *priv = libipw_priv(dev); 7324 7325 if (!wrqu->frag.fixed) 7326 return -EINVAL; 7327 7328 if (wrqu->frag.disabled) { 7329 priv->frag_threshold |= FRAG_DISABLED; 7330 priv->ieee->fts = DEFAULT_FTS; 7331 } else { 7332 if (wrqu->frag.value < MIN_FRAG_THRESHOLD || 7333 wrqu->frag.value > MAX_FRAG_THRESHOLD) 7334 return -EINVAL; 7335 7336 priv->ieee->fts = wrqu->frag.value & ~0x1; 7337 priv->frag_threshold = priv->ieee->fts; 7338 } 7339 7340 IPW_DEBUG_WX("SET Frag Threshold -> %d \n", priv->ieee->fts); 7341 7342 return 0; 7343} 7344 7345static int ipw2100_wx_get_frag(struct net_device *dev, 7346 struct iw_request_info *info, 7347 union iwreq_data *wrqu, char *extra) 7348{ 7349 /* 7350 * This can be called at any time. No action lock required 7351 */ 7352 7353 struct ipw2100_priv *priv = libipw_priv(dev); 7354 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED; 7355 wrqu->frag.fixed = 0; /* no auto select */ 7356 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0; 7357 7358 IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value); 7359 7360 return 0; 7361} 7362 7363static int ipw2100_wx_set_retry(struct net_device *dev, 7364 struct iw_request_info *info, 7365 union iwreq_data *wrqu, char *extra) 7366{ 7367 struct ipw2100_priv *priv = libipw_priv(dev); 7368 int err = 0; 7369 7370 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled) 7371 return -EINVAL; 7372 7373 if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) 7374 return 0; 7375 7376 mutex_lock(&priv->action_mutex); 7377 if (!(priv->status & STATUS_INITIALIZED)) { 7378 err = -EIO; 7379 goto done; 7380 } 7381 7382 if (wrqu->retry.flags & IW_RETRY_SHORT) { 7383 err = ipw2100_set_short_retry(priv, wrqu->retry.value); 7384 IPW_DEBUG_WX("SET Short Retry Limit -> %d \n", 7385 wrqu->retry.value); 7386 goto done; 7387 } 7388 7389 if (wrqu->retry.flags & IW_RETRY_LONG) { 7390 err = ipw2100_set_long_retry(priv, wrqu->retry.value); 7391 IPW_DEBUG_WX("SET Long Retry Limit -> %d \n", 7392 wrqu->retry.value); 7393 goto done; 7394 } 7395 7396 err = ipw2100_set_short_retry(priv, wrqu->retry.value); 7397 if (!err) 7398 err = ipw2100_set_long_retry(priv, wrqu->retry.value); 7399 7400 IPW_DEBUG_WX("SET Both Retry Limits -> %d \n", wrqu->retry.value); 7401 7402 done: 7403 mutex_unlock(&priv->action_mutex); 7404 return err; 7405} 7406 7407static int ipw2100_wx_get_retry(struct net_device *dev, 7408 struct iw_request_info *info, 7409 union iwreq_data *wrqu, char *extra) 7410{ 7411 /* 7412 * This can be called at any time. No action lock required 7413 */ 7414 7415 struct ipw2100_priv *priv = libipw_priv(dev); 7416 7417 wrqu->retry.disabled = 0; /* can't be disabled */ 7418 7419 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) 7420 return -EINVAL; 7421 7422 if (wrqu->retry.flags & IW_RETRY_LONG) { 7423 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 7424 wrqu->retry.value = priv->long_retry_limit; 7425 } else { 7426 wrqu->retry.flags = 7427 (priv->short_retry_limit != 7428 priv->long_retry_limit) ? 7429 IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT; 7430 7431 wrqu->retry.value = priv->short_retry_limit; 7432 } 7433 7434 IPW_DEBUG_WX("GET Retry -> %d \n", wrqu->retry.value); 7435 7436 return 0; 7437} 7438 7439static int ipw2100_wx_set_scan(struct net_device *dev, 7440 struct iw_request_info *info, 7441 union iwreq_data *wrqu, char *extra) 7442{ 7443 struct ipw2100_priv *priv = libipw_priv(dev); 7444 int err = 0; 7445 7446 mutex_lock(&priv->action_mutex); 7447 if (!(priv->status & STATUS_INITIALIZED)) { 7448 err = -EIO; 7449 goto done; 7450 } 7451 7452 IPW_DEBUG_WX("Initiating scan...\n"); 7453 7454 priv->user_requested_scan = 1; 7455 if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) { 7456 IPW_DEBUG_WX("Start scan failed.\n"); 7457 7458 /* TODO: Mark a scan as pending so when hardware initialized 7459 * a scan starts */ 7460 } 7461 7462 done: 7463 mutex_unlock(&priv->action_mutex); 7464 return err; 7465} 7466 7467static int ipw2100_wx_get_scan(struct net_device *dev, 7468 struct iw_request_info *info, 7469 union iwreq_data *wrqu, char *extra) 7470{ 7471 /* 7472 * This can be called at any time. No action lock required 7473 */ 7474 7475 struct ipw2100_priv *priv = libipw_priv(dev); 7476 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra); 7477} 7478 7479/* 7480 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c 7481 */ 7482static int ipw2100_wx_set_encode(struct net_device *dev, 7483 struct iw_request_info *info, 7484 union iwreq_data *wrqu, char *key) 7485{ 7486 /* 7487 * No check of STATUS_INITIALIZED required 7488 */ 7489 7490 struct ipw2100_priv *priv = libipw_priv(dev); 7491 return libipw_wx_set_encode(priv->ieee, info, wrqu, key); 7492} 7493 7494static int ipw2100_wx_get_encode(struct net_device *dev, 7495 struct iw_request_info *info, 7496 union iwreq_data *wrqu, char *key) 7497{ 7498 /* 7499 * This can be called at any time. No action lock required 7500 */ 7501 7502 struct ipw2100_priv *priv = libipw_priv(dev); 7503 return libipw_wx_get_encode(priv->ieee, info, wrqu, key); 7504} 7505 7506static int ipw2100_wx_set_power(struct net_device *dev, 7507 struct iw_request_info *info, 7508 union iwreq_data *wrqu, char *extra) 7509{ 7510 struct ipw2100_priv *priv = libipw_priv(dev); 7511 int err = 0; 7512 7513 mutex_lock(&priv->action_mutex); 7514 if (!(priv->status & STATUS_INITIALIZED)) { 7515 err = -EIO; 7516 goto done; 7517 } 7518 7519 if (wrqu->power.disabled) { 7520 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); 7521 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM); 7522 IPW_DEBUG_WX("SET Power Management Mode -> off\n"); 7523 goto done; 7524 } 7525 7526 switch (wrqu->power.flags & IW_POWER_MODE) { 7527 case IW_POWER_ON: /* If not specified */ 7528 case IW_POWER_MODE: /* If set all mask */ 7529 case IW_POWER_ALL_R: /* If explicitly state all */ 7530 break; 7531 default: /* Otherwise we don't support it */ 7532 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n", 7533 wrqu->power.flags); 7534 err = -EOPNOTSUPP; 7535 goto done; 7536 } 7537 7538 /* If the user hasn't specified a power management mode yet, default 7539 * to BATTERY */ 7540 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode; 7541 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode)); 7542 7543 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode); 7544 7545 done: 7546 mutex_unlock(&priv->action_mutex); 7547 return err; 7548 7549} 7550 7551static int ipw2100_wx_get_power(struct net_device *dev, 7552 struct iw_request_info *info, 7553 union iwreq_data *wrqu, char *extra) 7554{ 7555 /* 7556 * This can be called at any time. No action lock required 7557 */ 7558 7559 struct ipw2100_priv *priv = libipw_priv(dev); 7560 7561 if (!(priv->power_mode & IPW_POWER_ENABLED)) 7562 wrqu->power.disabled = 1; 7563 else { 7564 wrqu->power.disabled = 0; 7565 wrqu->power.flags = 0; 7566 } 7567 7568 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode); 7569 7570 return 0; 7571} 7572 7573/* 7574 * WE-18 WPA support 7575 */ 7576 7577/* SIOCSIWGENIE */ 7578static int ipw2100_wx_set_genie(struct net_device *dev, 7579 struct iw_request_info *info, 7580 union iwreq_data *wrqu, char *extra) 7581{ 7582 7583 struct ipw2100_priv *priv = libipw_priv(dev); 7584 struct libipw_device *ieee = priv->ieee; 7585 u8 *buf; 7586 7587 if (!ieee->wpa_enabled) 7588 return -EOPNOTSUPP; 7589 7590 if (wrqu->data.length > MAX_WPA_IE_LEN || 7591 (wrqu->data.length && extra == NULL)) 7592 return -EINVAL; 7593 7594 if (wrqu->data.length) { 7595 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL); 7596 if (buf == NULL) 7597 return -ENOMEM; 7598 7599 kfree(ieee->wpa_ie); 7600 ieee->wpa_ie = buf; 7601 ieee->wpa_ie_len = wrqu->data.length; 7602 } else { 7603 kfree(ieee->wpa_ie); 7604 ieee->wpa_ie = NULL; 7605 ieee->wpa_ie_len = 0; 7606 } 7607 7608 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len); 7609 7610 return 0; 7611} 7612 7613/* SIOCGIWGENIE */ 7614static int ipw2100_wx_get_genie(struct net_device *dev, 7615 struct iw_request_info *info, 7616 union iwreq_data *wrqu, char *extra) 7617{ 7618 struct ipw2100_priv *priv = libipw_priv(dev); 7619 struct libipw_device *ieee = priv->ieee; 7620 7621 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) { 7622 wrqu->data.length = 0; 7623 return 0; 7624 } 7625 7626 if (wrqu->data.length < ieee->wpa_ie_len) 7627 return -E2BIG; 7628 7629 wrqu->data.length = ieee->wpa_ie_len; 7630 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len); 7631 7632 return 0; 7633} 7634 7635/* SIOCSIWAUTH */ 7636static int ipw2100_wx_set_auth(struct net_device *dev, 7637 struct iw_request_info *info, 7638 union iwreq_data *wrqu, char *extra) 7639{ 7640 struct ipw2100_priv *priv = libipw_priv(dev); 7641 struct libipw_device *ieee = priv->ieee; 7642 struct iw_param *param = &wrqu->param; 7643 struct lib80211_crypt_data *crypt; 7644 unsigned long flags; 7645 int ret = 0; 7646 7647 switch (param->flags & IW_AUTH_INDEX) { 7648 case IW_AUTH_WPA_VERSION: 7649 case IW_AUTH_CIPHER_PAIRWISE: 7650 case IW_AUTH_CIPHER_GROUP: 7651 case IW_AUTH_KEY_MGMT: 7652 /* 7653 * ipw2200 does not use these parameters 7654 */ 7655 break; 7656 7657 case IW_AUTH_TKIP_COUNTERMEASURES: 7658 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; 7659 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) 7660 break; 7661 7662 flags = crypt->ops->get_flags(crypt->priv); 7663 7664 if (param->value) 7665 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; 7666 else 7667 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; 7668 7669 crypt->ops->set_flags(flags, crypt->priv); 7670 7671 break; 7672 7673 case IW_AUTH_DROP_UNENCRYPTED:{ 7674 /* HACK: 7675 * 7676 * wpa_supplicant calls set_wpa_enabled when the driver 7677 * is loaded and unloaded, regardless of if WPA is being 7678 * used. No other calls are made which can be used to 7679 * determine if encryption will be used or not prior to 7680 * association being expected. If encryption is not being 7681 * used, drop_unencrypted is set to false, else true -- we 7682 * can use this to determine if the CAP_PRIVACY_ON bit should 7683 * be set. 7684 */ 7685 struct libipw_security sec = { 7686 .flags = SEC_ENABLED, 7687 .enabled = param->value, 7688 }; 7689 priv->ieee->drop_unencrypted = param->value; 7690 /* We only change SEC_LEVEL for open mode. Others 7691 * are set by ipw_wpa_set_encryption. 7692 */ 7693 if (!param->value) { 7694 sec.flags |= SEC_LEVEL; 7695 sec.level = SEC_LEVEL_0; 7696 } else { 7697 sec.flags |= SEC_LEVEL; 7698 sec.level = SEC_LEVEL_1; 7699 } 7700 if (priv->ieee->set_security) 7701 priv->ieee->set_security(priv->ieee->dev, &sec); 7702 break; 7703 } 7704 7705 case IW_AUTH_80211_AUTH_ALG: 7706 ret = ipw2100_wpa_set_auth_algs(priv, param->value); 7707 break; 7708 7709 case IW_AUTH_WPA_ENABLED: 7710 ret = ipw2100_wpa_enable(priv, param->value); 7711 break; 7712 7713 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 7714 ieee->ieee802_1x = param->value; 7715 break; 7716 7717 //case IW_AUTH_ROAMING_CONTROL: 7718 case IW_AUTH_PRIVACY_INVOKED: 7719 ieee->privacy_invoked = param->value; 7720 break; 7721 7722 default: 7723 return -EOPNOTSUPP; 7724 } 7725 return ret; 7726} 7727 7728/* SIOCGIWAUTH */ 7729static int ipw2100_wx_get_auth(struct net_device *dev, 7730 struct iw_request_info *info, 7731 union iwreq_data *wrqu, char *extra) 7732{ 7733 struct ipw2100_priv *priv = libipw_priv(dev); 7734 struct libipw_device *ieee = priv->ieee; 7735 struct lib80211_crypt_data *crypt; 7736 struct iw_param *param = &wrqu->param; 7737 int ret = 0; 7738 7739 switch (param->flags & IW_AUTH_INDEX) { 7740 case IW_AUTH_WPA_VERSION: 7741 case IW_AUTH_CIPHER_PAIRWISE: 7742 case IW_AUTH_CIPHER_GROUP: 7743 case IW_AUTH_KEY_MGMT: 7744 /* 7745 * wpa_supplicant will control these internally 7746 */ 7747 ret = -EOPNOTSUPP; 7748 break; 7749 7750 case IW_AUTH_TKIP_COUNTERMEASURES: 7751 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; 7752 if (!crypt || !crypt->ops->get_flags) { 7753 IPW_DEBUG_WARNING("Can't get TKIP countermeasures: " 7754 "crypt not set!\n"); 7755 break; 7756 } 7757 7758 param->value = (crypt->ops->get_flags(crypt->priv) & 7759 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0; 7760 7761 break; 7762 7763 case IW_AUTH_DROP_UNENCRYPTED: 7764 param->value = ieee->drop_unencrypted; 7765 break; 7766 7767 case IW_AUTH_80211_AUTH_ALG: 7768 param->value = priv->ieee->sec.auth_mode; 7769 break; 7770 7771 case IW_AUTH_WPA_ENABLED: 7772 param->value = ieee->wpa_enabled; 7773 break; 7774 7775 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 7776 param->value = ieee->ieee802_1x; 7777 break; 7778 7779 case IW_AUTH_ROAMING_CONTROL: 7780 case IW_AUTH_PRIVACY_INVOKED: 7781 param->value = ieee->privacy_invoked; 7782 break; 7783 7784 default: 7785 return -EOPNOTSUPP; 7786 } 7787 return 0; 7788} 7789 7790/* SIOCSIWENCODEEXT */ 7791static int ipw2100_wx_set_encodeext(struct net_device *dev, 7792 struct iw_request_info *info, 7793 union iwreq_data *wrqu, char *extra) 7794{ 7795 struct ipw2100_priv *priv = libipw_priv(dev); 7796 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra); 7797} 7798 7799/* SIOCGIWENCODEEXT */ 7800static int ipw2100_wx_get_encodeext(struct net_device *dev, 7801 struct iw_request_info *info, 7802 union iwreq_data *wrqu, char *extra) 7803{ 7804 struct ipw2100_priv *priv = libipw_priv(dev); 7805 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra); 7806} 7807 7808/* SIOCSIWMLME */ 7809static int ipw2100_wx_set_mlme(struct net_device *dev, 7810 struct iw_request_info *info, 7811 union iwreq_data *wrqu, char *extra) 7812{ 7813 struct ipw2100_priv *priv = libipw_priv(dev); 7814 struct iw_mlme *mlme = (struct iw_mlme *)extra; 7815 __le16 reason; 7816 7817 reason = cpu_to_le16(mlme->reason_code); 7818 7819 switch (mlme->cmd) { 7820 case IW_MLME_DEAUTH: 7821 // silently ignore 7822 break; 7823 7824 case IW_MLME_DISASSOC: 7825 ipw2100_disassociate_bssid(priv); 7826 break; 7827 7828 default: 7829 return -EOPNOTSUPP; 7830 } 7831 return 0; 7832} 7833 7834/* 7835 * 7836 * IWPRIV handlers 7837 * 7838 */ 7839#ifdef CONFIG_IPW2100_MONITOR 7840static int ipw2100_wx_set_promisc(struct net_device *dev, 7841 struct iw_request_info *info, 7842 union iwreq_data *wrqu, char *extra) 7843{ 7844 struct ipw2100_priv *priv = libipw_priv(dev); 7845 int *parms = (int *)extra; 7846 int enable = (parms[0] > 0); 7847 int err = 0; 7848 7849 mutex_lock(&priv->action_mutex); 7850 if (!(priv->status & STATUS_INITIALIZED)) { 7851 err = -EIO; 7852 goto done; 7853 } 7854 7855 if (enable) { 7856 if (priv->ieee->iw_mode == IW_MODE_MONITOR) { 7857 err = ipw2100_set_channel(priv, parms[1], 0); 7858 goto done; 7859 } 7860 priv->channel = parms[1]; 7861 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR); 7862 } else { 7863 if (priv->ieee->iw_mode == IW_MODE_MONITOR) 7864 err = ipw2100_switch_mode(priv, priv->last_mode); 7865 } 7866 done: 7867 mutex_unlock(&priv->action_mutex); 7868 return err; 7869} 7870 7871static int ipw2100_wx_reset(struct net_device *dev, 7872 struct iw_request_info *info, 7873 union iwreq_data *wrqu, char *extra) 7874{ 7875 struct ipw2100_priv *priv = libipw_priv(dev); 7876 if (priv->status & STATUS_INITIALIZED) 7877 schedule_reset(priv); 7878 return 0; 7879} 7880 7881#endif 7882 7883static int ipw2100_wx_set_powermode(struct net_device *dev, 7884 struct iw_request_info *info, 7885 union iwreq_data *wrqu, char *extra) 7886{ 7887 struct ipw2100_priv *priv = libipw_priv(dev); 7888 int err = 0, mode = *(int *)extra; 7889 7890 mutex_lock(&priv->action_mutex); 7891 if (!(priv->status & STATUS_INITIALIZED)) { 7892 err = -EIO; 7893 goto done; 7894 } 7895 7896 if ((mode < 0) || (mode > POWER_MODES)) 7897 mode = IPW_POWER_AUTO; 7898 7899 if (IPW_POWER_LEVEL(priv->power_mode) != mode) 7900 err = ipw2100_set_power_mode(priv, mode); 7901 done: 7902 mutex_unlock(&priv->action_mutex); 7903 return err; 7904} 7905 7906#define MAX_POWER_STRING 80 7907static int ipw2100_wx_get_powermode(struct net_device *dev, 7908 struct iw_request_info *info, 7909 union iwreq_data *wrqu, char *extra) 7910{ 7911 /* 7912 * This can be called at any time. No action lock required 7913 */ 7914 7915 struct ipw2100_priv *priv = libipw_priv(dev); 7916 int level = IPW_POWER_LEVEL(priv->power_mode); 7917 s32 timeout, period; 7918 7919 if (!(priv->power_mode & IPW_POWER_ENABLED)) { 7920 snprintf(extra, MAX_POWER_STRING, 7921 "Power save level: %d (Off)", level); 7922 } else { 7923 switch (level) { 7924 case IPW_POWER_MODE_CAM: 7925 snprintf(extra, MAX_POWER_STRING, 7926 "Power save level: %d (None)", level); 7927 break; 7928 case IPW_POWER_AUTO: 7929 snprintf(extra, MAX_POWER_STRING, 7930 "Power save level: %d (Auto)", level); 7931 break; 7932 default: 7933 timeout = timeout_duration[level - 1] / 1000; 7934 period = period_duration[level - 1] / 1000; 7935 snprintf(extra, MAX_POWER_STRING, 7936 "Power save level: %d " 7937 "(Timeout %dms, Period %dms)", 7938 level, timeout, period); 7939 } 7940 } 7941 7942 wrqu->data.length = strlen(extra) + 1; 7943 7944 return 0; 7945} 7946 7947static int ipw2100_wx_set_preamble(struct net_device *dev, 7948 struct iw_request_info *info, 7949 union iwreq_data *wrqu, char *extra) 7950{ 7951 struct ipw2100_priv *priv = libipw_priv(dev); 7952 int err, mode = *(int *)extra; 7953 7954 mutex_lock(&priv->action_mutex); 7955 if (!(priv->status & STATUS_INITIALIZED)) { 7956 err = -EIO; 7957 goto done; 7958 } 7959 7960 if (mode == 1) 7961 priv->config |= CFG_LONG_PREAMBLE; 7962 else if (mode == 0) 7963 priv->config &= ~CFG_LONG_PREAMBLE; 7964 else { 7965 err = -EINVAL; 7966 goto done; 7967 } 7968 7969 err = ipw2100_system_config(priv, 0); 7970 7971 done: 7972 mutex_unlock(&priv->action_mutex); 7973 return err; 7974} 7975 7976static int ipw2100_wx_get_preamble(struct net_device *dev, 7977 struct iw_request_info *info, 7978 union iwreq_data *wrqu, char *extra) 7979{ 7980 /* 7981 * This can be called at any time. No action lock required 7982 */ 7983 7984 struct ipw2100_priv *priv = libipw_priv(dev); 7985 7986 if (priv->config & CFG_LONG_PREAMBLE) 7987 snprintf(wrqu->name, IFNAMSIZ, "long (1)"); 7988 else 7989 snprintf(wrqu->name, IFNAMSIZ, "auto (0)"); 7990 7991 return 0; 7992} 7993 7994#ifdef CONFIG_IPW2100_MONITOR 7995static int ipw2100_wx_set_crc_check(struct net_device *dev, 7996 struct iw_request_info *info, 7997 union iwreq_data *wrqu, char *extra) 7998{ 7999 struct ipw2100_priv *priv = libipw_priv(dev); 8000 int err, mode = *(int *)extra; 8001 8002 mutex_lock(&priv->action_mutex); 8003 if (!(priv->status & STATUS_INITIALIZED)) { 8004 err = -EIO; 8005 goto done; 8006 } 8007 8008 if (mode == 1) 8009 priv->config |= CFG_CRC_CHECK; 8010 else if (mode == 0) 8011 priv->config &= ~CFG_CRC_CHECK; 8012 else { 8013 err = -EINVAL; 8014 goto done; 8015 } 8016 err = 0; 8017 8018 done: 8019 mutex_unlock(&priv->action_mutex); 8020 return err; 8021} 8022 8023static int ipw2100_wx_get_crc_check(struct net_device *dev, 8024 struct iw_request_info *info, 8025 union iwreq_data *wrqu, char *extra) 8026{ 8027 /* 8028 * This can be called at any time. No action lock required 8029 */ 8030 8031 struct ipw2100_priv *priv = libipw_priv(dev); 8032 8033 if (priv->config & CFG_CRC_CHECK) 8034 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)"); 8035 else 8036 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)"); 8037 8038 return 0; 8039} 8040#endif /* CONFIG_IPW2100_MONITOR */ 8041 8042static iw_handler ipw2100_wx_handlers[] = { 8043 NULL, /* SIOCSIWCOMMIT */ 8044 ipw2100_wx_get_name, /* SIOCGIWNAME */ 8045 NULL, /* SIOCSIWNWID */ 8046 NULL, /* SIOCGIWNWID */ 8047 ipw2100_wx_set_freq, /* SIOCSIWFREQ */ 8048 ipw2100_wx_get_freq, /* SIOCGIWFREQ */ 8049 ipw2100_wx_set_mode, /* SIOCSIWMODE */ 8050 ipw2100_wx_get_mode, /* SIOCGIWMODE */ 8051 NULL, /* SIOCSIWSENS */ 8052 NULL, /* SIOCGIWSENS */ 8053 NULL, /* SIOCSIWRANGE */ 8054 ipw2100_wx_get_range, /* SIOCGIWRANGE */ 8055 NULL, /* SIOCSIWPRIV */ 8056 NULL, /* SIOCGIWPRIV */ 8057 NULL, /* SIOCSIWSTATS */ 8058 NULL, /* SIOCGIWSTATS */ 8059 NULL, /* SIOCSIWSPY */ 8060 NULL, /* SIOCGIWSPY */ 8061 NULL, /* SIOCGIWTHRSPY */ 8062 NULL, /* SIOCWIWTHRSPY */ 8063 ipw2100_wx_set_wap, /* SIOCSIWAP */ 8064 ipw2100_wx_get_wap, /* SIOCGIWAP */ 8065 ipw2100_wx_set_mlme, /* SIOCSIWMLME */ 8066 NULL, /* SIOCGIWAPLIST -- deprecated */ 8067 ipw2100_wx_set_scan, /* SIOCSIWSCAN */ 8068 ipw2100_wx_get_scan, /* SIOCGIWSCAN */ 8069 ipw2100_wx_set_essid, /* SIOCSIWESSID */ 8070 ipw2100_wx_get_essid, /* SIOCGIWESSID */ 8071 ipw2100_wx_set_nick, /* SIOCSIWNICKN */ 8072 ipw2100_wx_get_nick, /* SIOCGIWNICKN */ 8073 NULL, /* -- hole -- */ 8074 NULL, /* -- hole -- */ 8075 ipw2100_wx_set_rate, /* SIOCSIWRATE */ 8076 ipw2100_wx_get_rate, /* SIOCGIWRATE */ 8077 ipw2100_wx_set_rts, /* SIOCSIWRTS */ 8078 ipw2100_wx_get_rts, /* SIOCGIWRTS */ 8079 ipw2100_wx_set_frag, /* SIOCSIWFRAG */ 8080 ipw2100_wx_get_frag, /* SIOCGIWFRAG */ 8081 ipw2100_wx_set_txpow, /* SIOCSIWTXPOW */ 8082 ipw2100_wx_get_txpow, /* SIOCGIWTXPOW */ 8083 ipw2100_wx_set_retry, /* SIOCSIWRETRY */ 8084 ipw2100_wx_get_retry, /* SIOCGIWRETRY */ 8085 ipw2100_wx_set_encode, /* SIOCSIWENCODE */ 8086 ipw2100_wx_get_encode, /* SIOCGIWENCODE */ 8087 ipw2100_wx_set_power, /* SIOCSIWPOWER */ 8088 ipw2100_wx_get_power, /* SIOCGIWPOWER */ 8089 NULL, /* -- hole -- */ 8090 NULL, /* -- hole -- */ 8091 ipw2100_wx_set_genie, /* SIOCSIWGENIE */ 8092 ipw2100_wx_get_genie, /* SIOCGIWGENIE */ 8093 ipw2100_wx_set_auth, /* SIOCSIWAUTH */ 8094 ipw2100_wx_get_auth, /* SIOCGIWAUTH */ 8095 ipw2100_wx_set_encodeext, /* SIOCSIWENCODEEXT */ 8096 ipw2100_wx_get_encodeext, /* SIOCGIWENCODEEXT */ 8097 NULL, /* SIOCSIWPMKSA */ 8098}; 8099 8100#define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV 8101#define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1 8102#define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2 8103#define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3 8104#define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4 8105#define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5 8106#define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6 8107#define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7 8108 8109static const struct iw_priv_args ipw2100_private_args[] = { 8110 8111#ifdef CONFIG_IPW2100_MONITOR 8112 { 8113 IPW2100_PRIV_SET_MONITOR, 8114 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"}, 8115 { 8116 IPW2100_PRIV_RESET, 8117 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"}, 8118#endif /* CONFIG_IPW2100_MONITOR */ 8119 8120 { 8121 IPW2100_PRIV_SET_POWER, 8122 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"}, 8123 { 8124 IPW2100_PRIV_GET_POWER, 8125 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING, 8126 "get_power"}, 8127 { 8128 IPW2100_PRIV_SET_LONGPREAMBLE, 8129 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"}, 8130 { 8131 IPW2100_PRIV_GET_LONGPREAMBLE, 8132 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"}, 8133#ifdef CONFIG_IPW2100_MONITOR 8134 { 8135 IPW2100_PRIV_SET_CRC_CHECK, 8136 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"}, 8137 { 8138 IPW2100_PRIV_GET_CRC_CHECK, 8139 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"}, 8140#endif /* CONFIG_IPW2100_MONITOR */ 8141}; 8142 8143static iw_handler ipw2100_private_handler[] = { 8144#ifdef CONFIG_IPW2100_MONITOR 8145 ipw2100_wx_set_promisc, 8146 ipw2100_wx_reset, 8147#else /* CONFIG_IPW2100_MONITOR */ 8148 NULL, 8149 NULL, 8150#endif /* CONFIG_IPW2100_MONITOR */ 8151 ipw2100_wx_set_powermode, 8152 ipw2100_wx_get_powermode, 8153 ipw2100_wx_set_preamble, 8154 ipw2100_wx_get_preamble, 8155#ifdef CONFIG_IPW2100_MONITOR 8156 ipw2100_wx_set_crc_check, 8157 ipw2100_wx_get_crc_check, 8158#else /* CONFIG_IPW2100_MONITOR */ 8159 NULL, 8160 NULL, 8161#endif /* CONFIG_IPW2100_MONITOR */ 8162}; 8163 8164/* 8165 * Get wireless statistics. 8166 * Called by /proc/net/wireless 8167 * Also called by SIOCGIWSTATS 8168 */ 8169static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev) 8170{ 8171 enum { 8172 POOR = 30, 8173 FAIR = 60, 8174 GOOD = 80, 8175 VERY_GOOD = 90, 8176 EXCELLENT = 95, 8177 PERFECT = 100 8178 }; 8179 int rssi_qual; 8180 int tx_qual; 8181 int beacon_qual; 8182 int quality; 8183 8184 struct ipw2100_priv *priv = libipw_priv(dev); 8185 struct iw_statistics *wstats; 8186 u32 rssi, tx_retries, missed_beacons, tx_failures; 8187 u32 ord_len = sizeof(u32); 8188 8189 if (!priv) 8190 return (struct iw_statistics *)NULL; 8191 8192 wstats = &priv->wstats; 8193 8194 /* if hw is disabled, then ipw2100_get_ordinal() can't be called. 8195 * ipw2100_wx_wireless_stats seems to be called before fw is 8196 * initialized. STATUS_ASSOCIATED will only be set if the hw is up 8197 * and associated; if not associcated, the values are all meaningless 8198 * anyway, so set them all to NULL and INVALID */ 8199 if (!(priv->status & STATUS_ASSOCIATED)) { 8200 wstats->miss.beacon = 0; 8201 wstats->discard.retries = 0; 8202 wstats->qual.qual = 0; 8203 wstats->qual.level = 0; 8204 wstats->qual.noise = 0; 8205 wstats->qual.updated = 7; 8206 wstats->qual.updated |= IW_QUAL_NOISE_INVALID | 8207 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; 8208 return wstats; 8209 } 8210 8211 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS, 8212 &missed_beacons, &ord_len)) 8213 goto fail_get_ordinal; 8214 8215 /* If we don't have a connection the quality and level is 0 */ 8216 if (!(priv->status & STATUS_ASSOCIATED)) { 8217 wstats->qual.qual = 0; 8218 wstats->qual.level = 0; 8219 } else { 8220 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR, 8221 &rssi, &ord_len)) 8222 goto fail_get_ordinal; 8223 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM; 8224 if (rssi < 10) 8225 rssi_qual = rssi * POOR / 10; 8226 else if (rssi < 15) 8227 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR; 8228 else if (rssi < 20) 8229 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR; 8230 else if (rssi < 30) 8231 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) / 8232 10 + GOOD; 8233 else 8234 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) / 8235 10 + VERY_GOOD; 8236 8237 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES, 8238 &tx_retries, &ord_len)) 8239 goto fail_get_ordinal; 8240 8241 if (tx_retries > 75) 8242 tx_qual = (90 - tx_retries) * POOR / 15; 8243 else if (tx_retries > 70) 8244 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR; 8245 else if (tx_retries > 65) 8246 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR; 8247 else if (tx_retries > 50) 8248 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) / 8249 15 + GOOD; 8250 else 8251 tx_qual = (50 - tx_retries) * 8252 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD; 8253 8254 if (missed_beacons > 50) 8255 beacon_qual = (60 - missed_beacons) * POOR / 10; 8256 else if (missed_beacons > 40) 8257 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) / 8258 10 + POOR; 8259 else if (missed_beacons > 32) 8260 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) / 8261 18 + FAIR; 8262 else if (missed_beacons > 20) 8263 beacon_qual = (32 - missed_beacons) * 8264 (VERY_GOOD - GOOD) / 20 + GOOD; 8265 else 8266 beacon_qual = (20 - missed_beacons) * 8267 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD; 8268 8269 quality = min(tx_qual, rssi_qual); 8270 quality = min(beacon_qual, quality); 8271 8272#ifdef CONFIG_IPW2100_DEBUG 8273 if (beacon_qual == quality) 8274 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n"); 8275 else if (tx_qual == quality) 8276 IPW_DEBUG_WX("Quality clamped by Tx Retries\n"); 8277 else if (quality != 100) 8278 IPW_DEBUG_WX("Quality clamped by Signal Strength\n"); 8279 else 8280 IPW_DEBUG_WX("Quality not clamped.\n"); 8281#endif 8282 8283 wstats->qual.qual = quality; 8284 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM; 8285 } 8286 8287 wstats->qual.noise = 0; 8288 wstats->qual.updated = 7; 8289 wstats->qual.updated |= IW_QUAL_NOISE_INVALID; 8290 8291 /* FIXME: this is percent and not a # */ 8292 wstats->miss.beacon = missed_beacons; 8293 8294 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES, 8295 &tx_failures, &ord_len)) 8296 goto fail_get_ordinal; 8297 wstats->discard.retries = tx_failures; 8298 8299 return wstats; 8300 8301 fail_get_ordinal: 8302 IPW_DEBUG_WX("failed querying ordinals.\n"); 8303 8304 return (struct iw_statistics *)NULL; 8305} 8306 8307static struct iw_handler_def ipw2100_wx_handler_def = { 8308 .standard = ipw2100_wx_handlers, 8309 .num_standard = ARRAY_SIZE(ipw2100_wx_handlers), 8310 .num_private = ARRAY_SIZE(ipw2100_private_handler), 8311 .num_private_args = ARRAY_SIZE(ipw2100_private_args), 8312 .private = (iw_handler *) ipw2100_private_handler, 8313 .private_args = (struct iw_priv_args *)ipw2100_private_args, 8314 .get_wireless_stats = ipw2100_wx_wireless_stats, 8315}; 8316 8317static void ipw2100_wx_event_work(struct work_struct *work) 8318{ 8319 struct ipw2100_priv *priv = 8320 container_of(work, struct ipw2100_priv, wx_event_work.work); 8321 union iwreq_data wrqu; 8322 unsigned int len = ETH_ALEN; 8323 8324 if (priv->status & STATUS_STOPPING) 8325 return; 8326 8327 mutex_lock(&priv->action_mutex); 8328 8329 IPW_DEBUG_WX("enter\n"); 8330 8331 mutex_unlock(&priv->action_mutex); 8332 8333 wrqu.ap_addr.sa_family = ARPHRD_ETHER; 8334 8335 /* Fetch BSSID from the hardware */ 8336 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) || 8337 priv->status & STATUS_RF_KILL_MASK || 8338 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, 8339 &priv->bssid, &len)) { 8340 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); 8341 } else { 8342 /* We now have the BSSID, so can finish setting to the full 8343 * associated state */ 8344 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN); 8345 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN); 8346 priv->status &= ~STATUS_ASSOCIATING; 8347 priv->status |= STATUS_ASSOCIATED; 8348 netif_carrier_on(priv->net_dev); 8349 netif_wake_queue(priv->net_dev); 8350 } 8351 8352 if (!(priv->status & STATUS_ASSOCIATED)) { 8353 IPW_DEBUG_WX("Configuring ESSID\n"); 8354 mutex_lock(&priv->action_mutex); 8355 /* This is a disassociation event, so kick the firmware to 8356 * look for another AP */ 8357 if (priv->config & CFG_STATIC_ESSID) 8358 ipw2100_set_essid(priv, priv->essid, priv->essid_len, 8359 0); 8360 else 8361 ipw2100_set_essid(priv, NULL, 0, 0); 8362 mutex_unlock(&priv->action_mutex); 8363 } 8364 8365 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); 8366} 8367 8368#define IPW2100_FW_MAJOR_VERSION 1 8369#define IPW2100_FW_MINOR_VERSION 3 8370 8371#define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8) 8372#define IPW2100_FW_MAJOR(x) (x & 0xff) 8373 8374#define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \ 8375 IPW2100_FW_MAJOR_VERSION) 8376 8377#define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \ 8378"." __stringify(IPW2100_FW_MINOR_VERSION) 8379 8380#define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw" 8381 8382/* 8383 8384BINARY FIRMWARE HEADER FORMAT 8385 8386offset length desc 83870 2 version 83882 2 mode == 0:BSS,1:IBSS,2:MONITOR 83894 4 fw_len 83908 4 uc_len 8391C fw_len firmware data 839212 + fw_len uc_len microcode data 8393 8394*/ 8395 8396struct ipw2100_fw_header { 8397 short version; 8398 short mode; 8399 unsigned int fw_size; 8400 unsigned int uc_size; 8401} __attribute__ ((packed)); 8402 8403static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw) 8404{ 8405 struct ipw2100_fw_header *h = 8406 (struct ipw2100_fw_header *)fw->fw_entry->data; 8407 8408 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) { 8409 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible " 8410 "(detected version id of %u). " 8411 "See Documentation/networking/README.ipw2100\n", 8412 h->version); 8413 return 1; 8414 } 8415 8416 fw->version = h->version; 8417 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header); 8418 fw->fw.size = h->fw_size; 8419 fw->uc.data = fw->fw.data + h->fw_size; 8420 fw->uc.size = h->uc_size; 8421 8422 return 0; 8423} 8424 8425static int ipw2100_get_firmware(struct ipw2100_priv *priv, 8426 struct ipw2100_fw *fw) 8427{ 8428 char *fw_name; 8429 int rc; 8430 8431 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n", 8432 priv->net_dev->name); 8433 8434 switch (priv->ieee->iw_mode) { 8435 case IW_MODE_ADHOC: 8436 fw_name = IPW2100_FW_NAME("-i"); 8437 break; 8438#ifdef CONFIG_IPW2100_MONITOR 8439 case IW_MODE_MONITOR: 8440 fw_name = IPW2100_FW_NAME("-p"); 8441 break; 8442#endif 8443 case IW_MODE_INFRA: 8444 default: 8445 fw_name = IPW2100_FW_NAME(""); 8446 break; 8447 } 8448 8449 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev); 8450 8451 if (rc < 0) { 8452 printk(KERN_ERR DRV_NAME ": " 8453 "%s: Firmware '%s' not available or load failed.\n", 8454 priv->net_dev->name, fw_name); 8455 return rc; 8456 } 8457 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data, 8458 fw->fw_entry->size); 8459 8460 ipw2100_mod_firmware_load(fw); 8461 8462 return 0; 8463} 8464 8465MODULE_FIRMWARE(IPW2100_FW_NAME("-i")); 8466#ifdef CONFIG_IPW2100_MONITOR 8467MODULE_FIRMWARE(IPW2100_FW_NAME("-p")); 8468#endif 8469MODULE_FIRMWARE(IPW2100_FW_NAME("")); 8470 8471static void ipw2100_release_firmware(struct ipw2100_priv *priv, 8472 struct ipw2100_fw *fw) 8473{ 8474 fw->version = 0; 8475 if (fw->fw_entry) 8476 release_firmware(fw->fw_entry); 8477 fw->fw_entry = NULL; 8478} 8479 8480static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf, 8481 size_t max) 8482{ 8483 char ver[MAX_FW_VERSION_LEN]; 8484 u32 len = MAX_FW_VERSION_LEN; 8485 u32 tmp; 8486 int i; 8487 /* firmware version is an ascii string (max len of 14) */ 8488 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len)) 8489 return -EIO; 8490 tmp = max; 8491 if (len >= max) 8492 len = max - 1; 8493 for (i = 0; i < len; i++) 8494 buf[i] = ver[i]; 8495 buf[i] = '\0'; 8496 return tmp; 8497} 8498 8499static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf, 8500 size_t max) 8501{ 8502 u32 ver; 8503 u32 len = sizeof(ver); 8504 /* microcode version is a 32 bit integer */ 8505 if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len)) 8506 return -EIO; 8507 return snprintf(buf, max, "%08X", ver); 8508} 8509 8510/* 8511 * On exit, the firmware will have been freed from the fw list 8512 */ 8513static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw) 8514{ 8515 /* firmware is constructed of N contiguous entries, each entry is 8516 * structured as: 8517 * 8518 * offset sie desc 8519 * 0 4 address to write to 8520 * 4 2 length of data run 8521 * 6 length data 8522 */ 8523 unsigned int addr; 8524 unsigned short len; 8525 8526 const unsigned char *firmware_data = fw->fw.data; 8527 unsigned int firmware_data_left = fw->fw.size; 8528 8529 while (firmware_data_left > 0) { 8530 addr = *(u32 *) (firmware_data); 8531 firmware_data += 4; 8532 firmware_data_left -= 4; 8533 8534 len = *(u16 *) (firmware_data); 8535 firmware_data += 2; 8536 firmware_data_left -= 2; 8537 8538 if (len > 32) { 8539 printk(KERN_ERR DRV_NAME ": " 8540 "Invalid firmware run-length of %d bytes\n", 8541 len); 8542 return -EINVAL; 8543 } 8544 8545 write_nic_memory(priv->net_dev, addr, len, firmware_data); 8546 firmware_data += len; 8547 firmware_data_left -= len; 8548 } 8549 8550 return 0; 8551} 8552 8553struct symbol_alive_response { 8554 u8 cmd_id; 8555 u8 seq_num; 8556 u8 ucode_rev; 8557 u8 eeprom_valid; 8558 u16 valid_flags; 8559 u8 IEEE_addr[6]; 8560 u16 flags; 8561 u16 pcb_rev; 8562 u16 clock_settle_time; // 1us LSB 8563 u16 powerup_settle_time; // 1us LSB 8564 u16 hop_settle_time; // 1us LSB 8565 u8 date[3]; // month, day, year 8566 u8 time[2]; // hours, minutes 8567 u8 ucode_valid; 8568}; 8569 8570static int ipw2100_ucode_download(struct ipw2100_priv *priv, 8571 struct ipw2100_fw *fw) 8572{ 8573 struct net_device *dev = priv->net_dev; 8574 const unsigned char *microcode_data = fw->uc.data; 8575 unsigned int microcode_data_left = fw->uc.size; 8576 void __iomem *reg = (void __iomem *)dev->base_addr; 8577 8578 struct symbol_alive_response response; 8579 int i, j; 8580 u8 data; 8581 8582 /* Symbol control */ 8583 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703); 8584 readl(reg); 8585 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707); 8586 readl(reg); 8587 8588 /* HW config */ 8589 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */ 8590 readl(reg); 8591 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */ 8592 readl(reg); 8593 8594 /* EN_CS_ACCESS bit to reset control store pointer */ 8595 write_nic_byte(dev, 0x210000, 0x40); 8596 readl(reg); 8597 write_nic_byte(dev, 0x210000, 0x0); 8598 readl(reg); 8599 write_nic_byte(dev, 0x210000, 0x40); 8600 readl(reg); 8601 8602 /* copy microcode from buffer into Symbol */ 8603 8604 while (microcode_data_left > 0) { 8605 write_nic_byte(dev, 0x210010, *microcode_data++); 8606 write_nic_byte(dev, 0x210010, *microcode_data++); 8607 microcode_data_left -= 2; 8608 } 8609 8610 /* EN_CS_ACCESS bit to reset the control store pointer */ 8611 write_nic_byte(dev, 0x210000, 0x0); 8612 readl(reg); 8613 8614 /* Enable System (Reg 0) 8615 * first enable causes garbage in RX FIFO */ 8616 write_nic_byte(dev, 0x210000, 0x0); 8617 readl(reg); 8618 write_nic_byte(dev, 0x210000, 0x80); 8619 readl(reg); 8620 8621 /* Reset External Baseband Reg */ 8622 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703); 8623 readl(reg); 8624 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707); 8625 readl(reg); 8626 8627 /* HW Config (Reg 5) */ 8628 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16 8629 readl(reg); 8630 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16 8631 readl(reg); 8632 8633 /* Enable System (Reg 0) 8634 * second enable should be OK */ 8635 write_nic_byte(dev, 0x210000, 0x00); // clear enable system 8636 readl(reg); 8637 write_nic_byte(dev, 0x210000, 0x80); // set enable system 8638 8639 /* check Symbol is enabled - upped this from 5 as it wasn't always 8640 * catching the update */ 8641 for (i = 0; i < 10; i++) { 8642 udelay(10); 8643 8644 /* check Dino is enabled bit */ 8645 read_nic_byte(dev, 0x210000, &data); 8646 if (data & 0x1) 8647 break; 8648 } 8649 8650 if (i == 10) { 8651 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n", 8652 dev->name); 8653 return -EIO; 8654 } 8655 8656 /* Get Symbol alive response */ 8657 for (i = 0; i < 30; i++) { 8658 /* Read alive response structure */ 8659 for (j = 0; 8660 j < (sizeof(struct symbol_alive_response) >> 1); j++) 8661 read_nic_word(dev, 0x210004, ((u16 *) & response) + j); 8662 8663 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1)) 8664 break; 8665 udelay(10); 8666 } 8667 8668 if (i == 30) { 8669 printk(KERN_ERR DRV_NAME 8670 ": %s: No response from Symbol - hw not alive\n", 8671 dev->name); 8672 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response)); 8673 return -EIO; 8674 } 8675 8676 return 0; 8677} 8678