1/* 2 * WL3501 Wireless LAN PCMCIA Card Driver for Linux 3 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw 4 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br> 5 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com> 6 * 7 * References used by Fox Chen while writing the original driver for 2.0.30: 8 * 9 * 1. WL24xx packet drivers (tooasm.asm) 10 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO 11 * 3. IEEE 802.11 12 * 4. Linux network driver (/usr/src/linux/drivers/net) 13 * 5. ISA card driver - wl24.c 14 * 6. Linux PCMCIA skeleton driver - skeleton.c 15 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c 16 * 17 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12 18 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode. 19 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null 20 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct 21 * ETHER/IP/UDP/TCP header, and acknowledgement overhead) 22 * 23 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode, 24 * 173 Kbytes/s in TCP. 25 * 26 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode 27 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60) 28 */ 29 30#include <linux/delay.h> 31#include <linux/types.h> 32#include <linux/init.h> 33#include <linux/interrupt.h> 34#include <linux/in.h> 35#include <linux/kernel.h> 36#include <linux/module.h> 37#include <linux/fcntl.h> 38#include <linux/if_arp.h> 39#include <linux/ioport.h> 40#include <linux/netdevice.h> 41#include <linux/etherdevice.h> 42#include <linux/skbuff.h> 43#include <linux/slab.h> 44#include <linux/string.h> 45#include <linux/wireless.h> 46#include <linux/ieee80211.h> 47 48#include <net/iw_handler.h> 49 50#include <pcmcia/cistpl.h> 51#include <pcmcia/cisreg.h> 52#include <pcmcia/ds.h> 53 54#include <asm/io.h> 55#include <asm/uaccess.h> 56 57#include "wl3501.h" 58 59#ifndef __i386__ 60#define slow_down_io() 61#endif 62 63/* For rough constant delay */ 64#define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); } 65 66 67 68#define wl3501_outb(a, b) { outb(a, b); slow_down_io(); } 69#define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); } 70#define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); } 71 72#define WL3501_RELEASE_TIMEOUT (25 * HZ) 73#define WL3501_MAX_ADHOC_TRIES 16 74 75#define WL3501_RESUME 0 76#define WL3501_SUSPEND 1 77 78static int wl3501_config(struct pcmcia_device *link); 79static void wl3501_release(struct pcmcia_device *link); 80 81static const struct { 82 int reg_domain; 83 int min, max, deflt; 84} iw_channel_table[] = { 85 { 86 .reg_domain = IW_REG_DOMAIN_FCC, 87 .min = 1, 88 .max = 11, 89 .deflt = 1, 90 }, 91 { 92 .reg_domain = IW_REG_DOMAIN_DOC, 93 .min = 1, 94 .max = 11, 95 .deflt = 1, 96 }, 97 { 98 .reg_domain = IW_REG_DOMAIN_ETSI, 99 .min = 1, 100 .max = 13, 101 .deflt = 1, 102 }, 103 { 104 .reg_domain = IW_REG_DOMAIN_SPAIN, 105 .min = 10, 106 .max = 11, 107 .deflt = 10, 108 }, 109 { 110 .reg_domain = IW_REG_DOMAIN_FRANCE, 111 .min = 10, 112 .max = 13, 113 .deflt = 10, 114 }, 115 { 116 .reg_domain = IW_REG_DOMAIN_MKK, 117 .min = 14, 118 .max = 14, 119 .deflt = 14, 120 }, 121 { 122 .reg_domain = IW_REG_DOMAIN_MKK1, 123 .min = 1, 124 .max = 14, 125 .deflt = 1, 126 }, 127 { 128 .reg_domain = IW_REG_DOMAIN_ISRAEL, 129 .min = 3, 130 .max = 9, 131 .deflt = 9, 132 }, 133}; 134 135/** 136 * iw_valid_channel - validate channel in regulatory domain 137 * @reg_comain - regulatory domain 138 * @channel - channel to validate 139 * 140 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid. 141 */ 142static int iw_valid_channel(int reg_domain, int channel) 143{ 144 int i, rc = 0; 145 146 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) 147 if (reg_domain == iw_channel_table[i].reg_domain) { 148 rc = channel >= iw_channel_table[i].min && 149 channel <= iw_channel_table[i].max; 150 break; 151 } 152 return rc; 153} 154 155/** 156 * iw_default_channel - get default channel for a regulatory domain 157 * @reg_comain - regulatory domain 158 * 159 * Returns the default channel for a regulatory domain 160 */ 161static int iw_default_channel(int reg_domain) 162{ 163 int i, rc = 1; 164 165 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) 166 if (reg_domain == iw_channel_table[i].reg_domain) { 167 rc = iw_channel_table[i].deflt; 168 break; 169 } 170 return rc; 171} 172 173static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id, 174 struct iw_mgmt_info_element *el, 175 void *value, int len) 176{ 177 el->id = id; 178 el->len = len; 179 memcpy(el->data, value, len); 180} 181 182static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to, 183 struct iw_mgmt_info_element *from) 184{ 185 iw_set_mgmt_info_element(from->id, to, from->data, from->len); 186} 187 188static inline void wl3501_switch_page(struct wl3501_card *this, u8 page) 189{ 190 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS); 191} 192 193/* 194 * Get Ethernet MAC address. 195 * 196 * WARNING: We switch to FPAGE0 and switc back again. 197 * Making sure there is no other WL function beening called by ISR. 198 */ 199static int wl3501_get_flash_mac_addr(struct wl3501_card *this) 200{ 201 int base_addr = this->base_addr; 202 203 /* get MAC addr */ 204 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */ 205 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */ 206 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */ 207 208 /* wait for reading EEPROM */ 209 WL3501_NOPLOOP(100); 210 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA); 211 WL3501_NOPLOOP(100); 212 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA); 213 WL3501_NOPLOOP(100); 214 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA); 215 WL3501_NOPLOOP(100); 216 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA); 217 WL3501_NOPLOOP(100); 218 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA); 219 WL3501_NOPLOOP(100); 220 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA); 221 WL3501_NOPLOOP(100); 222 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA); 223 WL3501_NOPLOOP(100); 224 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS); 225 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL); 226 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); 227 WL3501_NOPLOOP(100); 228 this->version[0] = inb(base_addr + WL3501_NIC_IODPA); 229 WL3501_NOPLOOP(100); 230 this->version[1] = inb(base_addr + WL3501_NIC_IODPA); 231 /* switch to SRAM Page 0 (for safety) */ 232 wl3501_switch_page(this, WL3501_BSS_SPAGE0); 233 234 /* The MAC addr should be 00:60:... */ 235 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60; 236} 237 238/** 239 * wl3501_set_to_wla - Move 'size' bytes from PC to card 240 * @dest: Card addressing space 241 * @src: PC addressing space 242 * @size: Bytes to move 243 * 244 * Move 'size' bytes from PC to card. (Shouldn't be interrupted) 245 */ 246static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, 247 int size) 248{ 249 /* switch to SRAM Page 0 */ 250 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 : 251 WL3501_BSS_SPAGE0); 252 /* set LMAL and LMAH */ 253 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL); 254 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH); 255 256 /* rep out to Port A */ 257 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size); 258} 259 260/** 261 * wl3501_get_from_wla - Move 'size' bytes from card to PC 262 * @src: Card addressing space 263 * @dest: PC addressing space 264 * @size: Bytes to move 265 * 266 * Move 'size' bytes from card to PC. (Shouldn't be interrupted) 267 */ 268static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, 269 int size) 270{ 271 /* switch to SRAM Page 0 */ 272 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 : 273 WL3501_BSS_SPAGE0); 274 /* set LMAL and LMAH */ 275 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL); 276 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH); 277 278 /* rep get from Port A */ 279 insb(this->base_addr + WL3501_NIC_IODPA, dest, size); 280} 281 282/* 283 * Get/Allocate a free Tx Data Buffer 284 * 285 * *--------------*-----------------*----------------------------------* 286 * | PLCP | MAC Header | DST SRC Data ... | 287 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) | 288 * *--------------*-----------------*----------------------------------* 289 * \ \- IEEE 802.11 -/ \-------------- len --------------/ 290 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/ 291 * 292 * Return = Position in Card 293 */ 294static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len) 295{ 296 u16 next, blk_cnt = 0, zero = 0; 297 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len; 298 u16 ret = 0; 299 300 if (full_len > this->tx_buffer_cnt * 254) 301 goto out; 302 ret = this->tx_buffer_head; 303 while (full_len) { 304 if (full_len < 254) 305 full_len = 0; 306 else 307 full_len -= 254; 308 wl3501_get_from_wla(this, this->tx_buffer_head, &next, 309 sizeof(next)); 310 if (!full_len) 311 wl3501_set_to_wla(this, this->tx_buffer_head, &zero, 312 sizeof(zero)); 313 this->tx_buffer_head = next; 314 blk_cnt++; 315 /* if buffer is not enough */ 316 if (!next && full_len) { 317 this->tx_buffer_head = ret; 318 ret = 0; 319 goto out; 320 } 321 } 322 this->tx_buffer_cnt -= blk_cnt; 323out: 324 return ret; 325} 326 327/* 328 * Free an allocated Tx Buffer. ptr must be correct position. 329 */ 330static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr) 331{ 332 /* check if all space is not free */ 333 if (!this->tx_buffer_head) 334 this->tx_buffer_head = ptr; 335 else 336 wl3501_set_to_wla(this, this->tx_buffer_tail, 337 &ptr, sizeof(ptr)); 338 while (ptr) { 339 u16 next; 340 341 this->tx_buffer_cnt++; 342 wl3501_get_from_wla(this, ptr, &next, sizeof(next)); 343 this->tx_buffer_tail = ptr; 344 ptr = next; 345 } 346} 347 348static int wl3501_esbq_req_test(struct wl3501_card *this) 349{ 350 u8 tmp = 0; 351 352 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp)); 353 return tmp & 0x80; 354} 355 356static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr) 357{ 358 u16 tmp = 0; 359 360 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2); 361 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp)); 362 this->esbq_req_head += 4; 363 if (this->esbq_req_head >= this->esbq_req_end) 364 this->esbq_req_head = this->esbq_req_start; 365} 366 367static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size) 368{ 369 int rc = -EIO; 370 371 if (wl3501_esbq_req_test(this)) { 372 u16 ptr = wl3501_get_tx_buffer(this, sig_size); 373 if (ptr) { 374 wl3501_set_to_wla(this, ptr, sig, sig_size); 375 wl3501_esbq_req(this, &ptr); 376 rc = 0; 377 } 378 } 379 return rc; 380} 381 382static int wl3501_get_mib_value(struct wl3501_card *this, u8 index, 383 void *bf, int size) 384{ 385 struct wl3501_get_req sig = { 386 .sig_id = WL3501_SIG_GET_REQ, 387 .mib_attrib = index, 388 }; 389 unsigned long flags; 390 int rc = -EIO; 391 392 spin_lock_irqsave(&this->lock, flags); 393 if (wl3501_esbq_req_test(this)) { 394 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); 395 if (ptr) { 396 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); 397 wl3501_esbq_req(this, &ptr); 398 this->sig_get_confirm.mib_status = 255; 399 spin_unlock_irqrestore(&this->lock, flags); 400 rc = wait_event_interruptible(this->wait, 401 this->sig_get_confirm.mib_status != 255); 402 if (!rc) 403 memcpy(bf, this->sig_get_confirm.mib_value, 404 size); 405 goto out; 406 } 407 } 408 spin_unlock_irqrestore(&this->lock, flags); 409out: 410 return rc; 411} 412 413static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend) 414{ 415 struct wl3501_pwr_mgmt_req sig = { 416 .sig_id = WL3501_SIG_PWR_MGMT_REQ, 417 .pwr_save = suspend, 418 .wake_up = !suspend, 419 .receive_dtims = 10, 420 }; 421 unsigned long flags; 422 int rc = -EIO; 423 424 spin_lock_irqsave(&this->lock, flags); 425 if (wl3501_esbq_req_test(this)) { 426 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); 427 if (ptr) { 428 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); 429 wl3501_esbq_req(this, &ptr); 430 this->sig_pwr_mgmt_confirm.status = 255; 431 spin_unlock_irqrestore(&this->lock, flags); 432 rc = wait_event_interruptible(this->wait, 433 this->sig_pwr_mgmt_confirm.status != 255); 434 printk(KERN_INFO "%s: %s status=%d\n", __func__, 435 suspend ? "suspend" : "resume", 436 this->sig_pwr_mgmt_confirm.status); 437 goto out; 438 } 439 } 440 spin_unlock_irqrestore(&this->lock, flags); 441out: 442 return rc; 443} 444 445/** 446 * wl3501_send_pkt - Send a packet. 447 * @this - card 448 * 449 * Send a packet. 450 * 451 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr, 452 * data[6] - data[11] is Src MAC Addr) 453 * Ref: IEEE 802.11 454 */ 455static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len) 456{ 457 u16 bf, sig_bf, next, tmplen, pktlen; 458 struct wl3501_md_req sig = { 459 .sig_id = WL3501_SIG_MD_REQ, 460 }; 461 u8 *pdata = (char *)data; 462 int rc = -EIO; 463 464 if (wl3501_esbq_req_test(this)) { 465 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig)); 466 rc = -ENOMEM; 467 if (!sig_bf) /* No free buffer available */ 468 goto out; 469 bf = wl3501_get_tx_buffer(this, len + 26 + 24); 470 if (!bf) { 471 /* No free buffer available */ 472 wl3501_free_tx_buffer(this, sig_bf); 473 goto out; 474 } 475 rc = 0; 476 memcpy(&sig.daddr[0], pdata, 12); 477 pktlen = len - 12; 478 pdata += 12; 479 sig.data = bf; 480 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) { 481 u8 addr4[ETH_ALEN] = { 482 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00, 483 }; 484 485 wl3501_set_to_wla(this, bf + 2 + 486 offsetof(struct wl3501_tx_hdr, addr4), 487 addr4, sizeof(addr4)); 488 sig.size = pktlen + 24 + 4 + 6; 489 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) { 490 tmplen = 254 - sizeof(struct wl3501_tx_hdr); 491 pktlen -= tmplen; 492 } else { 493 tmplen = pktlen; 494 pktlen = 0; 495 } 496 wl3501_set_to_wla(this, 497 bf + 2 + sizeof(struct wl3501_tx_hdr), 498 pdata, tmplen); 499 pdata += tmplen; 500 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 501 bf = next; 502 } else { 503 sig.size = pktlen + 24 + 4 - 2; 504 pdata += 2; 505 pktlen -= 2; 506 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) { 507 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6; 508 pktlen -= tmplen; 509 } else { 510 tmplen = pktlen; 511 pktlen = 0; 512 } 513 wl3501_set_to_wla(this, bf + 2 + 514 offsetof(struct wl3501_tx_hdr, addr4), 515 pdata, tmplen); 516 pdata += tmplen; 517 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 518 bf = next; 519 } 520 while (pktlen > 0) { 521 if (pktlen > 254) { 522 tmplen = 254; 523 pktlen -= 254; 524 } else { 525 tmplen = pktlen; 526 pktlen = 0; 527 } 528 wl3501_set_to_wla(this, bf + 2, pdata, tmplen); 529 pdata += tmplen; 530 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 531 bf = next; 532 } 533 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig)); 534 wl3501_esbq_req(this, &sig_bf); 535 } 536out: 537 return rc; 538} 539 540static int wl3501_mgmt_resync(struct wl3501_card *this) 541{ 542 struct wl3501_resync_req sig = { 543 .sig_id = WL3501_SIG_RESYNC_REQ, 544 }; 545 546 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 547} 548 549static inline int wl3501_fw_bss_type(struct wl3501_card *this) 550{ 551 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA : 552 WL3501_NET_TYPE_ADHOC; 553} 554 555static inline int wl3501_fw_cap_info(struct wl3501_card *this) 556{ 557 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS : 558 WL3501_MGMT_CAPABILITY_IBSS; 559} 560 561static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time) 562{ 563 struct wl3501_scan_req sig = { 564 .sig_id = WL3501_SIG_SCAN_REQ, 565 .scan_type = WL3501_SCAN_TYPE_ACTIVE, 566 .probe_delay = 0x10, 567 .min_chan_time = chan_time, 568 .max_chan_time = chan_time, 569 .bss_type = wl3501_fw_bss_type(this), 570 }; 571 572 this->bss_cnt = this->join_sta_bss = 0; 573 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 574} 575 576static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas) 577{ 578 struct wl3501_join_req sig = { 579 .sig_id = WL3501_SIG_JOIN_REQ, 580 .timeout = 10, 581 .ds_pset = { 582 .el = { 583 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, 584 .len = 1, 585 }, 586 .chan = this->chan, 587 }, 588 }; 589 590 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72); 591 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 592} 593 594static int wl3501_mgmt_start(struct wl3501_card *this) 595{ 596 struct wl3501_start_req sig = { 597 .sig_id = WL3501_SIG_START_REQ, 598 .beacon_period = 400, 599 .dtim_period = 1, 600 .ds_pset = { 601 .el = { 602 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, 603 .len = 1, 604 }, 605 .chan = this->chan, 606 }, 607 .bss_basic_rset = { 608 .el = { 609 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, 610 .len = 2, 611 }, 612 .data_rate_labels = { 613 [0] = IW_MGMT_RATE_LABEL_MANDATORY | 614 IW_MGMT_RATE_LABEL_1MBIT, 615 [1] = IW_MGMT_RATE_LABEL_MANDATORY | 616 IW_MGMT_RATE_LABEL_2MBIT, 617 }, 618 }, 619 .operational_rset = { 620 .el = { 621 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, 622 .len = 2, 623 }, 624 .data_rate_labels = { 625 [0] = IW_MGMT_RATE_LABEL_MANDATORY | 626 IW_MGMT_RATE_LABEL_1MBIT, 627 [1] = IW_MGMT_RATE_LABEL_MANDATORY | 628 IW_MGMT_RATE_LABEL_2MBIT, 629 }, 630 }, 631 .ibss_pset = { 632 .el = { 633 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET, 634 .len = 2, 635 }, 636 .atim_window = 10, 637 }, 638 .bss_type = wl3501_fw_bss_type(this), 639 .cap_info = wl3501_fw_cap_info(this), 640 }; 641 642 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el); 643 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el); 644 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 645} 646 647static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr) 648{ 649 u16 i = 0; 650 int matchflag = 0; 651 struct wl3501_scan_confirm sig; 652 653 pr_debug("entry"); 654 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 655 if (sig.status == WL3501_STATUS_SUCCESS) { 656 pr_debug("success"); 657 if ((this->net_type == IW_MODE_INFRA && 658 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) || 659 (this->net_type == IW_MODE_ADHOC && 660 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) || 661 this->net_type == IW_MODE_AUTO) { 662 if (!this->essid.el.len) 663 matchflag = 1; 664 else if (this->essid.el.len == 3 && 665 !memcmp(this->essid.essid, "ANY", 3)) 666 matchflag = 1; 667 else if (this->essid.el.len != sig.ssid.el.len) 668 matchflag = 0; 669 else if (memcmp(this->essid.essid, sig.ssid.essid, 670 this->essid.el.len)) 671 matchflag = 0; 672 else 673 matchflag = 1; 674 if (matchflag) { 675 for (i = 0; i < this->bss_cnt; i++) { 676 if (!memcmp(this->bss_set[i].bssid, 677 sig.bssid, ETH_ALEN)) { 678 matchflag = 0; 679 break; 680 } 681 } 682 } 683 if (matchflag && (i < 20)) { 684 memcpy(&this->bss_set[i].beacon_period, 685 &sig.beacon_period, 73); 686 this->bss_cnt++; 687 this->rssi = sig.rssi; 688 } 689 } 690 } else if (sig.status == WL3501_STATUS_TIMEOUT) { 691 pr_debug("timeout"); 692 this->join_sta_bss = 0; 693 for (i = this->join_sta_bss; i < this->bss_cnt; i++) 694 if (!wl3501_mgmt_join(this, i)) 695 break; 696 this->join_sta_bss = i; 697 if (this->join_sta_bss == this->bss_cnt) { 698 if (this->net_type == IW_MODE_INFRA) 699 wl3501_mgmt_scan(this, 100); 700 else { 701 this->adhoc_times++; 702 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) 703 wl3501_mgmt_start(this); 704 else 705 wl3501_mgmt_scan(this, 100); 706 } 707 } 708 } 709} 710 711/** 712 * wl3501_block_interrupt - Mask interrupt from SUTRO 713 * @this - card 714 * 715 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST) 716 * Return: 1 if interrupt is originally enabled 717 */ 718static int wl3501_block_interrupt(struct wl3501_card *this) 719{ 720 u8 old = inb(this->base_addr + WL3501_NIC_GCR); 721 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC | 722 WL3501_GCR_ENECINT)); 723 724 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); 725 return old & WL3501_GCR_ENECINT; 726} 727 728/** 729 * wl3501_unblock_interrupt - Enable interrupt from SUTRO 730 * @this - card 731 * 732 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST) 733 * Return: 1 if interrupt is originally enabled 734 */ 735static int wl3501_unblock_interrupt(struct wl3501_card *this) 736{ 737 u8 old = inb(this->base_addr + WL3501_NIC_GCR); 738 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) | 739 WL3501_GCR_ENECINT; 740 741 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); 742 return old & WL3501_GCR_ENECINT; 743} 744 745/** 746 * wl3501_receive - Receive data from Receive Queue. 747 * 748 * Receive data from Receive Queue. 749 * 750 * @this: card 751 * @bf: address of host 752 * @size: size of buffer. 753 */ 754static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size) 755{ 756 u16 next_addr, next_addr1; 757 u8 *data = bf + 12; 758 759 size -= 12; 760 wl3501_get_from_wla(this, this->start_seg + 2, 761 &next_addr, sizeof(next_addr)); 762 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) { 763 wl3501_get_from_wla(this, 764 this->start_seg + 765 sizeof(struct wl3501_rx_hdr), data, 766 WL3501_BLKSZ - 767 sizeof(struct wl3501_rx_hdr)); 768 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); 769 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); 770 } else { 771 wl3501_get_from_wla(this, 772 this->start_seg + 773 sizeof(struct wl3501_rx_hdr), 774 data, size); 775 size = 0; 776 } 777 while (size > 0) { 778 if (size > WL3501_BLKSZ - 5) { 779 wl3501_get_from_wla(this, next_addr + 5, data, 780 WL3501_BLKSZ - 5); 781 size -= WL3501_BLKSZ - 5; 782 data += WL3501_BLKSZ - 5; 783 wl3501_get_from_wla(this, next_addr + 2, &next_addr1, 784 sizeof(next_addr1)); 785 next_addr = next_addr1; 786 } else { 787 wl3501_get_from_wla(this, next_addr + 5, data, size); 788 size = 0; 789 } 790 } 791 return 0; 792} 793 794static void wl3501_esbq_req_free(struct wl3501_card *this) 795{ 796 u8 tmp; 797 u16 addr; 798 799 if (this->esbq_req_head == this->esbq_req_tail) 800 goto out; 801 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp)); 802 if (!(tmp & 0x80)) 803 goto out; 804 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr)); 805 wl3501_free_tx_buffer(this, addr); 806 this->esbq_req_tail += 4; 807 if (this->esbq_req_tail >= this->esbq_req_end) 808 this->esbq_req_tail = this->esbq_req_start; 809out: 810 return; 811} 812 813static int wl3501_esbq_confirm(struct wl3501_card *this) 814{ 815 u8 tmp; 816 817 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); 818 return tmp & 0x80; 819} 820 821static void wl3501_online(struct net_device *dev) 822{ 823 struct wl3501_card *this = netdev_priv(dev); 824 825 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n", 826 dev->name, this->bssid); 827 netif_wake_queue(dev); 828} 829 830static void wl3501_esbq_confirm_done(struct wl3501_card *this) 831{ 832 u8 tmp = 0; 833 834 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); 835 this->esbq_confirm += 4; 836 if (this->esbq_confirm >= this->esbq_confirm_end) 837 this->esbq_confirm = this->esbq_confirm_start; 838} 839 840static int wl3501_mgmt_auth(struct wl3501_card *this) 841{ 842 struct wl3501_auth_req sig = { 843 .sig_id = WL3501_SIG_AUTH_REQ, 844 .type = WL3501_SYS_TYPE_OPEN, 845 .timeout = 1000, 846 }; 847 848 pr_debug("entry"); 849 memcpy(sig.mac_addr, this->bssid, ETH_ALEN); 850 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 851} 852 853static int wl3501_mgmt_association(struct wl3501_card *this) 854{ 855 struct wl3501_assoc_req sig = { 856 .sig_id = WL3501_SIG_ASSOC_REQ, 857 .timeout = 1000, 858 .listen_interval = 5, 859 .cap_info = this->cap_info, 860 }; 861 862 pr_debug("entry"); 863 memcpy(sig.mac_addr, this->bssid, ETH_ALEN); 864 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 865} 866 867static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr) 868{ 869 struct wl3501_card *this = netdev_priv(dev); 870 struct wl3501_join_confirm sig; 871 872 pr_debug("entry"); 873 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 874 if (sig.status == WL3501_STATUS_SUCCESS) { 875 if (this->net_type == IW_MODE_INFRA) { 876 if (this->join_sta_bss < this->bss_cnt) { 877 const int i = this->join_sta_bss; 878 memcpy(this->bssid, 879 this->bss_set[i].bssid, ETH_ALEN); 880 this->chan = this->bss_set[i].ds_pset.chan; 881 iw_copy_mgmt_info_element(&this->keep_essid.el, 882 &this->bss_set[i].ssid.el); 883 wl3501_mgmt_auth(this); 884 } 885 } else { 886 const int i = this->join_sta_bss; 887 888 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN); 889 this->chan = this->bss_set[i].ds_pset.chan; 890 iw_copy_mgmt_info_element(&this->keep_essid.el, 891 &this->bss_set[i].ssid.el); 892 wl3501_online(dev); 893 } 894 } else { 895 int i; 896 this->join_sta_bss++; 897 for (i = this->join_sta_bss; i < this->bss_cnt; i++) 898 if (!wl3501_mgmt_join(this, i)) 899 break; 900 this->join_sta_bss = i; 901 if (this->join_sta_bss == this->bss_cnt) { 902 if (this->net_type == IW_MODE_INFRA) 903 wl3501_mgmt_scan(this, 100); 904 else { 905 this->adhoc_times++; 906 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) 907 wl3501_mgmt_start(this); 908 else 909 wl3501_mgmt_scan(this, 100); 910 } 911 } 912 } 913} 914 915static inline void wl3501_alarm_interrupt(struct net_device *dev, 916 struct wl3501_card *this) 917{ 918 if (this->net_type == IW_MODE_INFRA) { 919 printk(KERN_INFO "Wireless LAN offline\n"); 920 netif_stop_queue(dev); 921 wl3501_mgmt_resync(this); 922 } 923} 924 925static inline void wl3501_md_confirm_interrupt(struct net_device *dev, 926 struct wl3501_card *this, 927 u16 addr) 928{ 929 struct wl3501_md_confirm sig; 930 931 pr_debug("entry"); 932 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 933 wl3501_free_tx_buffer(this, sig.data); 934 if (netif_queue_stopped(dev)) 935 netif_wake_queue(dev); 936} 937 938static inline void wl3501_md_ind_interrupt(struct net_device *dev, 939 struct wl3501_card *this, u16 addr) 940{ 941 struct wl3501_md_ind sig; 942 struct sk_buff *skb; 943 u8 rssi, addr4[ETH_ALEN]; 944 u16 pkt_len; 945 946 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 947 this->start_seg = sig.data; 948 wl3501_get_from_wla(this, 949 sig.data + offsetof(struct wl3501_rx_hdr, rssi), 950 &rssi, sizeof(rssi)); 951 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255; 952 953 wl3501_get_from_wla(this, 954 sig.data + 955 offsetof(struct wl3501_rx_hdr, addr4), 956 &addr4, sizeof(addr4)); 957 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA && 958 addr4[2] == 0x03 && addr4[4] == 0x00)) { 959 printk(KERN_INFO "Insupported packet type!\n"); 960 return; 961 } 962 pkt_len = sig.size + 12 - 24 - 4 - 6; 963 964 skb = dev_alloc_skb(pkt_len + 5); 965 966 if (!skb) { 967 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n", 968 dev->name, pkt_len); 969 dev->stats.rx_dropped++; 970 } else { 971 skb->dev = dev; 972 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */ 973 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12); 974 wl3501_receive(this, skb->data, pkt_len); 975 skb_put(skb, pkt_len); 976 skb->protocol = eth_type_trans(skb, dev); 977 dev->stats.rx_packets++; 978 dev->stats.rx_bytes += skb->len; 979 netif_rx(skb); 980 } 981} 982 983static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this, 984 u16 addr, void *sig, int size) 985{ 986 pr_debug("entry"); 987 wl3501_get_from_wla(this, addr, &this->sig_get_confirm, 988 sizeof(this->sig_get_confirm)); 989 wake_up(&this->wait); 990} 991 992static inline void wl3501_start_confirm_interrupt(struct net_device *dev, 993 struct wl3501_card *this, 994 u16 addr) 995{ 996 struct wl3501_start_confirm sig; 997 998 pr_debug("entry"); 999 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1000 if (sig.status == WL3501_STATUS_SUCCESS) 1001 netif_wake_queue(dev); 1002} 1003 1004static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev, 1005 u16 addr) 1006{ 1007 struct wl3501_card *this = netdev_priv(dev); 1008 struct wl3501_assoc_confirm sig; 1009 1010 pr_debug("entry"); 1011 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1012 1013 if (sig.status == WL3501_STATUS_SUCCESS) 1014 wl3501_online(dev); 1015} 1016 1017static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this, 1018 u16 addr) 1019{ 1020 struct wl3501_auth_confirm sig; 1021 1022 pr_debug("entry"); 1023 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1024 1025 if (sig.status == WL3501_STATUS_SUCCESS) 1026 wl3501_mgmt_association(this); 1027 else 1028 wl3501_mgmt_resync(this); 1029} 1030 1031static inline void wl3501_rx_interrupt(struct net_device *dev) 1032{ 1033 int morepkts; 1034 u16 addr; 1035 u8 sig_id; 1036 struct wl3501_card *this = netdev_priv(dev); 1037 1038 pr_debug("entry"); 1039loop: 1040 morepkts = 0; 1041 if (!wl3501_esbq_confirm(this)) 1042 goto free; 1043 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr)); 1044 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id)); 1045 1046 switch (sig_id) { 1047 case WL3501_SIG_DEAUTH_IND: 1048 case WL3501_SIG_DISASSOC_IND: 1049 case WL3501_SIG_ALARM: 1050 wl3501_alarm_interrupt(dev, this); 1051 break; 1052 case WL3501_SIG_MD_CONFIRM: 1053 wl3501_md_confirm_interrupt(dev, this, addr); 1054 break; 1055 case WL3501_SIG_MD_IND: 1056 wl3501_md_ind_interrupt(dev, this, addr); 1057 break; 1058 case WL3501_SIG_GET_CONFIRM: 1059 wl3501_get_confirm_interrupt(this, addr, 1060 &this->sig_get_confirm, 1061 sizeof(this->sig_get_confirm)); 1062 break; 1063 case WL3501_SIG_PWR_MGMT_CONFIRM: 1064 wl3501_get_confirm_interrupt(this, addr, 1065 &this->sig_pwr_mgmt_confirm, 1066 sizeof(this->sig_pwr_mgmt_confirm)); 1067 break; 1068 case WL3501_SIG_START_CONFIRM: 1069 wl3501_start_confirm_interrupt(dev, this, addr); 1070 break; 1071 case WL3501_SIG_SCAN_CONFIRM: 1072 wl3501_mgmt_scan_confirm(this, addr); 1073 break; 1074 case WL3501_SIG_JOIN_CONFIRM: 1075 wl3501_mgmt_join_confirm(dev, addr); 1076 break; 1077 case WL3501_SIG_ASSOC_CONFIRM: 1078 wl3501_assoc_confirm_interrupt(dev, addr); 1079 break; 1080 case WL3501_SIG_AUTH_CONFIRM: 1081 wl3501_auth_confirm_interrupt(this, addr); 1082 break; 1083 case WL3501_SIG_RESYNC_CONFIRM: 1084 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */ 1085 break; 1086 } 1087 wl3501_esbq_confirm_done(this); 1088 morepkts = 1; 1089 /* free request if necessary */ 1090free: 1091 wl3501_esbq_req_free(this); 1092 if (morepkts) 1093 goto loop; 1094} 1095 1096static inline void wl3501_ack_interrupt(struct wl3501_card *this) 1097{ 1098 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR); 1099} 1100 1101/** 1102 * wl3501_interrupt - Hardware interrupt from card. 1103 * @irq - Interrupt number 1104 * @dev_id - net_device 1105 * 1106 * We must acknowledge the interrupt as soon as possible, and block the 1107 * interrupt from the same card immediately to prevent re-entry. 1108 * 1109 * Before accessing the Control_Status_Block, we must lock SUTRO first. 1110 * On the other hand, to prevent SUTRO from malfunctioning, we must 1111 * unlock the SUTRO as soon as possible. 1112 */ 1113static irqreturn_t wl3501_interrupt(int irq, void *dev_id) 1114{ 1115 struct net_device *dev = dev_id; 1116 struct wl3501_card *this; 1117 1118 this = netdev_priv(dev); 1119 spin_lock(&this->lock); 1120 wl3501_ack_interrupt(this); 1121 wl3501_block_interrupt(this); 1122 wl3501_rx_interrupt(dev); 1123 wl3501_unblock_interrupt(this); 1124 spin_unlock(&this->lock); 1125 1126 return IRQ_HANDLED; 1127} 1128 1129static int wl3501_reset_board(struct wl3501_card *this) 1130{ 1131 u8 tmp = 0; 1132 int i, rc = 0; 1133 1134 /* Coreset */ 1135 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); 1136 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); 1137 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); 1138 1139 /* Reset SRAM 0x480 to zero */ 1140 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); 1141 1142 /* Start up */ 1143 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); 1144 1145 WL3501_NOPLOOP(1024 * 50); 1146 1147 wl3501_unblock_interrupt(this); /* acme: was commented */ 1148 1149 /* Polling Self_Test_Status */ 1150 for (i = 0; i < 10000; i++) { 1151 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp)); 1152 1153 if (tmp == 'W') { 1154 /* firmware complete all test successfully */ 1155 tmp = 'A'; 1156 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); 1157 goto out; 1158 } 1159 WL3501_NOPLOOP(10); 1160 } 1161 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__); 1162 rc = -ENODEV; 1163out: 1164 return rc; 1165} 1166 1167static int wl3501_init_firmware(struct wl3501_card *this) 1168{ 1169 u16 ptr, next; 1170 int rc = wl3501_reset_board(this); 1171 1172 if (rc) 1173 goto fail; 1174 this->card_name[0] = '\0'; 1175 wl3501_get_from_wla(this, 0x1a00, 1176 this->card_name, sizeof(this->card_name)); 1177 this->card_name[sizeof(this->card_name) - 1] = '\0'; 1178 this->firmware_date[0] = '\0'; 1179 wl3501_get_from_wla(this, 0x1a40, 1180 this->firmware_date, sizeof(this->firmware_date)); 1181 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0'; 1182 /* Switch to SRAM Page 0 */ 1183 wl3501_switch_page(this, WL3501_BSS_SPAGE0); 1184 /* Read parameter from card */ 1185 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2); 1186 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2); 1187 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2); 1188 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2); 1189 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2); 1190 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2); 1191 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start; 1192 this->esbq_req_end += this->esbq_req_start; 1193 this->esbq_confirm = this->esbq_confirm_start; 1194 this->esbq_confirm_end += this->esbq_confirm_start; 1195 /* Initial Tx Buffer */ 1196 this->tx_buffer_cnt = 1; 1197 ptr = this->tx_buffer_head; 1198 next = ptr + WL3501_BLKSZ; 1199 while ((next - this->tx_buffer_head) < this->tx_buffer_size) { 1200 this->tx_buffer_cnt++; 1201 wl3501_set_to_wla(this, ptr, &next, sizeof(next)); 1202 ptr = next; 1203 next = ptr + WL3501_BLKSZ; 1204 } 1205 rc = 0; 1206 next = 0; 1207 wl3501_set_to_wla(this, ptr, &next, sizeof(next)); 1208 this->tx_buffer_tail = ptr; 1209out: 1210 return rc; 1211fail: 1212 printk(KERN_WARNING "%s: failed!\n", __func__); 1213 goto out; 1214} 1215 1216static int wl3501_close(struct net_device *dev) 1217{ 1218 struct wl3501_card *this = netdev_priv(dev); 1219 int rc = -ENODEV; 1220 unsigned long flags; 1221 struct pcmcia_device *link; 1222 link = this->p_dev; 1223 1224 spin_lock_irqsave(&this->lock, flags); 1225 link->open--; 1226 1227 /* Stop wl3501_hard_start_xmit() from now on */ 1228 netif_stop_queue(dev); 1229 wl3501_ack_interrupt(this); 1230 1231 /* Mask interrupts from the SUTRO */ 1232 wl3501_block_interrupt(this); 1233 1234 rc = 0; 1235 printk(KERN_INFO "%s: WL3501 closed\n", dev->name); 1236 spin_unlock_irqrestore(&this->lock, flags); 1237 return rc; 1238} 1239 1240/** 1241 * wl3501_reset - Reset the SUTRO. 1242 * @dev - network device 1243 * 1244 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close() 1245 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver 1246 * is running. It seems to be dangerous. 1247 */ 1248static int wl3501_reset(struct net_device *dev) 1249{ 1250 struct wl3501_card *this = netdev_priv(dev); 1251 int rc = -ENODEV; 1252 1253 wl3501_block_interrupt(this); 1254 1255 if (wl3501_init_firmware(this)) { 1256 printk(KERN_WARNING "%s: Can't initialize Firmware!\n", 1257 dev->name); 1258 /* Free IRQ, and mark IRQ as unused */ 1259 free_irq(dev->irq, dev); 1260 goto out; 1261 } 1262 1263 /* 1264 * Queue has to be started only when the Card is Started 1265 */ 1266 netif_stop_queue(dev); 1267 this->adhoc_times = 0; 1268 wl3501_ack_interrupt(this); 1269 wl3501_unblock_interrupt(this); 1270 wl3501_mgmt_scan(this, 100); 1271 pr_debug("%s: device reset", dev->name); 1272 rc = 0; 1273out: 1274 return rc; 1275} 1276 1277static void wl3501_tx_timeout(struct net_device *dev) 1278{ 1279 struct wl3501_card *this = netdev_priv(dev); 1280 struct net_device_stats *stats = &dev->stats; 1281 unsigned long flags; 1282 int rc; 1283 1284 stats->tx_errors++; 1285 spin_lock_irqsave(&this->lock, flags); 1286 rc = wl3501_reset(dev); 1287 spin_unlock_irqrestore(&this->lock, flags); 1288 if (rc) 1289 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n", 1290 dev->name, rc); 1291 else { 1292 dev->trans_start = jiffies; /* prevent tx timeout */ 1293 netif_wake_queue(dev); 1294 } 1295} 1296 1297/* 1298 * Return : 0 - OK 1299 * 1 - Could not transmit (dev_queue_xmit will queue it) 1300 * and try to sent it later 1301 */ 1302static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb, 1303 struct net_device *dev) 1304{ 1305 int enabled, rc; 1306 struct wl3501_card *this = netdev_priv(dev); 1307 unsigned long flags; 1308 1309 spin_lock_irqsave(&this->lock, flags); 1310 enabled = wl3501_block_interrupt(this); 1311 rc = wl3501_send_pkt(this, skb->data, skb->len); 1312 if (enabled) 1313 wl3501_unblock_interrupt(this); 1314 if (rc) { 1315 ++dev->stats.tx_dropped; 1316 netif_stop_queue(dev); 1317 } else { 1318 ++dev->stats.tx_packets; 1319 dev->stats.tx_bytes += skb->len; 1320 kfree_skb(skb); 1321 1322 if (this->tx_buffer_cnt < 2) 1323 netif_stop_queue(dev); 1324 } 1325 spin_unlock_irqrestore(&this->lock, flags); 1326 return NETDEV_TX_OK; 1327} 1328 1329static int wl3501_open(struct net_device *dev) 1330{ 1331 int rc = -ENODEV; 1332 struct wl3501_card *this = netdev_priv(dev); 1333 unsigned long flags; 1334 struct pcmcia_device *link; 1335 link = this->p_dev; 1336 1337 spin_lock_irqsave(&this->lock, flags); 1338 if (!pcmcia_dev_present(link)) 1339 goto out; 1340 netif_device_attach(dev); 1341 link->open++; 1342 1343 /* Initial WL3501 firmware */ 1344 pr_debug("%s: Initialize WL3501 firmware...", dev->name); 1345 if (wl3501_init_firmware(this)) 1346 goto fail; 1347 /* Initial device variables */ 1348 this->adhoc_times = 0; 1349 /* Acknowledge Interrupt, for cleaning last state */ 1350 wl3501_ack_interrupt(this); 1351 1352 /* Enable interrupt from card after all */ 1353 wl3501_unblock_interrupt(this); 1354 wl3501_mgmt_scan(this, 100); 1355 rc = 0; 1356 pr_debug("%s: WL3501 opened", dev->name); 1357 printk(KERN_INFO "%s: Card Name: %s\n" 1358 "%s: Firmware Date: %s\n", 1359 dev->name, this->card_name, 1360 dev->name, this->firmware_date); 1361out: 1362 spin_unlock_irqrestore(&this->lock, flags); 1363 return rc; 1364fail: 1365 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name); 1366 goto out; 1367} 1368 1369static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) 1370{ 1371 struct wl3501_card *this = netdev_priv(dev); 1372 struct iw_statistics *wstats = &this->wstats; 1373 u32 value; /* size checked: it is u32 */ 1374 1375 memset(wstats, 0, sizeof(*wstats)); 1376 wstats->status = netif_running(dev); 1377 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT, 1378 &value, sizeof(value))) 1379 wstats->discard.code += value; 1380 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT, 1381 &value, sizeof(value))) 1382 wstats->discard.code += value; 1383 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT, 1384 &value, sizeof(value))) 1385 wstats->discard.code += value; 1386 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT, 1387 &value, sizeof(value))) 1388 wstats->discard.retries = value; 1389 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT, 1390 &value, sizeof(value))) 1391 wstats->discard.misc += value; 1392 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT, 1393 &value, sizeof(value))) 1394 wstats->discard.misc += value; 1395 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT, 1396 &value, sizeof(value))) 1397 wstats->discard.misc += value; 1398 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT, 1399 &value, sizeof(value))) 1400 wstats->discard.misc += value; 1401 return wstats; 1402} 1403 1404/** 1405 * wl3501_detach - deletes a driver "instance" 1406 * @link - FILL_IN 1407 * 1408 * This deletes a driver "instance". The device is de-registered with Card 1409 * Services. If it has been released, all local data structures are freed. 1410 * Otherwise, the structures will be freed when the device is released. 1411 */ 1412static void wl3501_detach(struct pcmcia_device *link) 1413{ 1414 struct net_device *dev = link->priv; 1415 1416 /* If the device is currently configured and active, we won't actually 1417 * delete it yet. Instead, it is marked so that when the release() 1418 * function is called, that will trigger a proper detach(). */ 1419 1420 while (link->open > 0) 1421 wl3501_close(dev); 1422 1423 netif_device_detach(dev); 1424 wl3501_release(link); 1425 1426 unregister_netdev(dev); 1427 1428 if (link->priv) 1429 free_netdev(link->priv); 1430} 1431 1432static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info, 1433 union iwreq_data *wrqu, char *extra) 1434{ 1435 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name)); 1436 return 0; 1437} 1438 1439static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info, 1440 union iwreq_data *wrqu, char *extra) 1441{ 1442 struct wl3501_card *this = netdev_priv(dev); 1443 int channel = wrqu->freq.m; 1444 int rc = -EINVAL; 1445 1446 if (iw_valid_channel(this->reg_domain, channel)) { 1447 this->chan = channel; 1448 rc = wl3501_reset(dev); 1449 } 1450 return rc; 1451} 1452 1453static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info, 1454 union iwreq_data *wrqu, char *extra) 1455{ 1456 struct wl3501_card *this = netdev_priv(dev); 1457 1458 wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000; 1459 wrqu->freq.e = 1; 1460 return 0; 1461} 1462 1463static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info, 1464 union iwreq_data *wrqu, char *extra) 1465{ 1466 int rc = -EINVAL; 1467 1468 if (wrqu->mode == IW_MODE_INFRA || 1469 wrqu->mode == IW_MODE_ADHOC || 1470 wrqu->mode == IW_MODE_AUTO) { 1471 struct wl3501_card *this = netdev_priv(dev); 1472 1473 this->net_type = wrqu->mode; 1474 rc = wl3501_reset(dev); 1475 } 1476 return rc; 1477} 1478 1479static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info, 1480 union iwreq_data *wrqu, char *extra) 1481{ 1482 struct wl3501_card *this = netdev_priv(dev); 1483 1484 wrqu->mode = this->net_type; 1485 return 0; 1486} 1487 1488static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info, 1489 union iwreq_data *wrqu, char *extra) 1490{ 1491 struct wl3501_card *this = netdev_priv(dev); 1492 1493 wrqu->sens.value = this->rssi; 1494 wrqu->sens.disabled = !wrqu->sens.value; 1495 wrqu->sens.fixed = 1; 1496 return 0; 1497} 1498 1499static int wl3501_get_range(struct net_device *dev, 1500 struct iw_request_info *info, 1501 union iwreq_data *wrqu, char *extra) 1502{ 1503 struct iw_range *range = (struct iw_range *)extra; 1504 1505 /* Set the length (very important for backward compatibility) */ 1506 wrqu->data.length = sizeof(*range); 1507 1508 /* Set all the info we don't care or don't know about to zero */ 1509 memset(range, 0, sizeof(*range)); 1510 1511 /* Set the Wireless Extension versions */ 1512 range->we_version_compiled = WIRELESS_EXT; 1513 range->we_version_source = 1; 1514 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */ 1515 /* FIXME: study the code to fill in more fields... */ 1516 return 0; 1517} 1518 1519static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info, 1520 union iwreq_data *wrqu, char *extra) 1521{ 1522 struct wl3501_card *this = netdev_priv(dev); 1523 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 }; 1524 int rc = -EINVAL; 1525 1526 /* FIXME: we support other ARPHRDs...*/ 1527 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) 1528 goto out; 1529 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) { 1530 /* FIXME: rescan? */ 1531 } else 1532 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); 1533 /* FIXME: rescan? deassoc & scan? */ 1534 rc = 0; 1535out: 1536 return rc; 1537} 1538 1539static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info, 1540 union iwreq_data *wrqu, char *extra) 1541{ 1542 struct wl3501_card *this = netdev_priv(dev); 1543 1544 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1545 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN); 1546 return 0; 1547} 1548 1549static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info, 1550 union iwreq_data *wrqu, char *extra) 1551{ 1552 /* 1553 * FIXME: trigger scanning with a reset, yes, I'm lazy 1554 */ 1555 return wl3501_reset(dev); 1556} 1557 1558static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info, 1559 union iwreq_data *wrqu, char *extra) 1560{ 1561 struct wl3501_card *this = netdev_priv(dev); 1562 int i; 1563 char *current_ev = extra; 1564 struct iw_event iwe; 1565 1566 for (i = 0; i < this->bss_cnt; ++i) { 1567 iwe.cmd = SIOCGIWAP; 1568 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 1569 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN); 1570 current_ev = iwe_stream_add_event(info, current_ev, 1571 extra + IW_SCAN_MAX_DATA, 1572 &iwe, IW_EV_ADDR_LEN); 1573 iwe.cmd = SIOCGIWESSID; 1574 iwe.u.data.flags = 1; 1575 iwe.u.data.length = this->bss_set[i].ssid.el.len; 1576 current_ev = iwe_stream_add_point(info, current_ev, 1577 extra + IW_SCAN_MAX_DATA, 1578 &iwe, 1579 this->bss_set[i].ssid.essid); 1580 iwe.cmd = SIOCGIWMODE; 1581 iwe.u.mode = this->bss_set[i].bss_type; 1582 current_ev = iwe_stream_add_event(info, current_ev, 1583 extra + IW_SCAN_MAX_DATA, 1584 &iwe, IW_EV_UINT_LEN); 1585 iwe.cmd = SIOCGIWFREQ; 1586 iwe.u.freq.m = this->bss_set[i].ds_pset.chan; 1587 iwe.u.freq.e = 0; 1588 current_ev = iwe_stream_add_event(info, current_ev, 1589 extra + IW_SCAN_MAX_DATA, 1590 &iwe, IW_EV_FREQ_LEN); 1591 iwe.cmd = SIOCGIWENCODE; 1592 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY) 1593 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; 1594 else 1595 iwe.u.data.flags = IW_ENCODE_DISABLED; 1596 iwe.u.data.length = 0; 1597 current_ev = iwe_stream_add_point(info, current_ev, 1598 extra + IW_SCAN_MAX_DATA, 1599 &iwe, NULL); 1600 } 1601 /* Length of data */ 1602 wrqu->data.length = (current_ev - extra); 1603 wrqu->data.flags = 0; /* FIXME: set properly these flags */ 1604 return 0; 1605} 1606 1607static int wl3501_set_essid(struct net_device *dev, 1608 struct iw_request_info *info, 1609 union iwreq_data *wrqu, char *extra) 1610{ 1611 struct wl3501_card *this = netdev_priv(dev); 1612 1613 if (wrqu->data.flags) { 1614 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, 1615 &this->essid.el, 1616 extra, wrqu->data.length); 1617 } else { /* We accept any ESSID */ 1618 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, 1619 &this->essid.el, "ANY", 3); 1620 } 1621 return wl3501_reset(dev); 1622} 1623 1624static int wl3501_get_essid(struct net_device *dev, 1625 struct iw_request_info *info, 1626 union iwreq_data *wrqu, char *extra) 1627{ 1628 struct wl3501_card *this = netdev_priv(dev); 1629 unsigned long flags; 1630 1631 spin_lock_irqsave(&this->lock, flags); 1632 wrqu->essid.flags = 1; 1633 wrqu->essid.length = this->essid.el.len; 1634 memcpy(extra, this->essid.essid, this->essid.el.len); 1635 spin_unlock_irqrestore(&this->lock, flags); 1636 return 0; 1637} 1638 1639static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info, 1640 union iwreq_data *wrqu, char *extra) 1641{ 1642 struct wl3501_card *this = netdev_priv(dev); 1643 1644 if (wrqu->data.length > sizeof(this->nick)) 1645 return -E2BIG; 1646 strlcpy(this->nick, extra, wrqu->data.length); 1647 return 0; 1648} 1649 1650static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info, 1651 union iwreq_data *wrqu, char *extra) 1652{ 1653 struct wl3501_card *this = netdev_priv(dev); 1654 1655 strlcpy(extra, this->nick, 32); 1656 wrqu->data.length = strlen(extra); 1657 return 0; 1658} 1659 1660static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info, 1661 union iwreq_data *wrqu, char *extra) 1662{ 1663 /* 1664 * FIXME: have to see from where to get this info, perhaps this card 1665 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most 1666 * common with the Planet Access Points. -acme 1667 */ 1668 wrqu->bitrate.value = 2000000; 1669 wrqu->bitrate.fixed = 1; 1670 return 0; 1671} 1672 1673static int wl3501_get_rts_threshold(struct net_device *dev, 1674 struct iw_request_info *info, 1675 union iwreq_data *wrqu, char *extra) 1676{ 1677 u16 threshold; /* size checked: it is u16 */ 1678 struct wl3501_card *this = netdev_priv(dev); 1679 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD, 1680 &threshold, sizeof(threshold)); 1681 if (!rc) { 1682 wrqu->rts.value = threshold; 1683 wrqu->rts.disabled = threshold >= 2347; 1684 wrqu->rts.fixed = 1; 1685 } 1686 return rc; 1687} 1688 1689static int wl3501_get_frag_threshold(struct net_device *dev, 1690 struct iw_request_info *info, 1691 union iwreq_data *wrqu, char *extra) 1692{ 1693 u16 threshold; /* size checked: it is u16 */ 1694 struct wl3501_card *this = netdev_priv(dev); 1695 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD, 1696 &threshold, sizeof(threshold)); 1697 if (!rc) { 1698 wrqu->frag.value = threshold; 1699 wrqu->frag.disabled = threshold >= 2346; 1700 wrqu->frag.fixed = 1; 1701 } 1702 return rc; 1703} 1704 1705static int wl3501_get_txpow(struct net_device *dev, 1706 struct iw_request_info *info, 1707 union iwreq_data *wrqu, char *extra) 1708{ 1709 u16 txpow; 1710 struct wl3501_card *this = netdev_priv(dev); 1711 int rc = wl3501_get_mib_value(this, 1712 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL, 1713 &txpow, sizeof(txpow)); 1714 if (!rc) { 1715 wrqu->txpower.value = txpow; 1716 wrqu->txpower.disabled = 0; 1717 /* 1718 * From the MIB values I think this can be configurable, 1719 * as it lists several tx power levels -acme 1720 */ 1721 wrqu->txpower.fixed = 0; 1722 wrqu->txpower.flags = IW_TXPOW_MWATT; 1723 } 1724 return rc; 1725} 1726 1727static int wl3501_get_retry(struct net_device *dev, 1728 struct iw_request_info *info, 1729 union iwreq_data *wrqu, char *extra) 1730{ 1731 u8 retry; /* size checked: it is u8 */ 1732 struct wl3501_card *this = netdev_priv(dev); 1733 int rc = wl3501_get_mib_value(this, 1734 WL3501_MIB_ATTR_LONG_RETRY_LIMIT, 1735 &retry, sizeof(retry)); 1736 if (rc) 1737 goto out; 1738 if (wrqu->retry.flags & IW_RETRY_LONG) { 1739 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 1740 goto set_value; 1741 } 1742 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT, 1743 &retry, sizeof(retry)); 1744 if (rc) 1745 goto out; 1746 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; 1747set_value: 1748 wrqu->retry.value = retry; 1749 wrqu->retry.disabled = 0; 1750out: 1751 return rc; 1752} 1753 1754static int wl3501_get_encode(struct net_device *dev, 1755 struct iw_request_info *info, 1756 union iwreq_data *wrqu, char *extra) 1757{ 1758 u8 implemented, restricted, keys[100], len_keys, tocopy; 1759 struct wl3501_card *this = netdev_priv(dev); 1760 int rc = wl3501_get_mib_value(this, 1761 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED, 1762 &implemented, sizeof(implemented)); 1763 if (rc) 1764 goto out; 1765 if (!implemented) { 1766 wrqu->encoding.flags = IW_ENCODE_DISABLED; 1767 goto out; 1768 } 1769 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED, 1770 &restricted, sizeof(restricted)); 1771 if (rc) 1772 goto out; 1773 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED : 1774 IW_ENCODE_OPEN; 1775 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN, 1776 &len_keys, sizeof(len_keys)); 1777 if (rc) 1778 goto out; 1779 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS, 1780 keys, len_keys); 1781 if (rc) 1782 goto out; 1783 tocopy = min_t(u16, len_keys, wrqu->encoding.length); 1784 tocopy = min_t(u8, tocopy, 100); 1785 wrqu->encoding.length = tocopy; 1786 memcpy(extra, keys, tocopy); 1787out: 1788 return rc; 1789} 1790 1791static int wl3501_get_power(struct net_device *dev, 1792 struct iw_request_info *info, 1793 union iwreq_data *wrqu, char *extra) 1794{ 1795 u8 pwr_state; 1796 struct wl3501_card *this = netdev_priv(dev); 1797 int rc = wl3501_get_mib_value(this, 1798 WL3501_MIB_ATTR_CURRENT_PWR_STATE, 1799 &pwr_state, sizeof(pwr_state)); 1800 if (rc) 1801 goto out; 1802 wrqu->power.disabled = !pwr_state; 1803 wrqu->power.flags = IW_POWER_ON; 1804out: 1805 return rc; 1806} 1807 1808static const iw_handler wl3501_handler[] = { 1809 IW_HANDLER(SIOCGIWNAME, wl3501_get_name), 1810 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq), 1811 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq), 1812 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode), 1813 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode), 1814 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens), 1815 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range), 1816 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 1817 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 1818 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 1819 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 1820 IW_HANDLER(SIOCSIWAP, wl3501_set_wap), 1821 IW_HANDLER(SIOCGIWAP, wl3501_get_wap), 1822 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan), 1823 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan), 1824 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid), 1825 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid), 1826 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick), 1827 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick), 1828 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate), 1829 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold), 1830 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold), 1831 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow), 1832 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry), 1833 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode), 1834 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power), 1835}; 1836 1837static const struct iw_handler_def wl3501_handler_def = { 1838 .num_standard = ARRAY_SIZE(wl3501_handler), 1839 .standard = (iw_handler *)wl3501_handler, 1840 .get_wireless_stats = wl3501_get_wireless_stats, 1841}; 1842 1843static const struct net_device_ops wl3501_netdev_ops = { 1844 .ndo_open = wl3501_open, 1845 .ndo_stop = wl3501_close, 1846 .ndo_start_xmit = wl3501_hard_start_xmit, 1847 .ndo_tx_timeout = wl3501_tx_timeout, 1848 .ndo_change_mtu = eth_change_mtu, 1849 .ndo_set_mac_address = eth_mac_addr, 1850 .ndo_validate_addr = eth_validate_addr, 1851}; 1852 1853static int wl3501_probe(struct pcmcia_device *p_dev) 1854{ 1855 struct net_device *dev; 1856 struct wl3501_card *this; 1857 1858 /* The io structure describes IO port mapping */ 1859 p_dev->resource[0]->end = 16; 1860 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8; 1861 1862 /* General socket configuration */ 1863 p_dev->config_flags = CONF_ENABLE_IRQ; 1864 p_dev->config_index = 1; 1865 1866 dev = alloc_etherdev(sizeof(struct wl3501_card)); 1867 if (!dev) 1868 goto out_link; 1869 1870 1871 dev->netdev_ops = &wl3501_netdev_ops; 1872 dev->watchdog_timeo = 5 * HZ; 1873 1874 this = netdev_priv(dev); 1875 this->wireless_data.spy_data = &this->spy_data; 1876 this->p_dev = p_dev; 1877 dev->wireless_data = &this->wireless_data; 1878 dev->wireless_handlers = &wl3501_handler_def; 1879 netif_stop_queue(dev); 1880 p_dev->priv = dev; 1881 1882 return wl3501_config(p_dev); 1883out_link: 1884 return -ENOMEM; 1885} 1886 1887static int wl3501_config(struct pcmcia_device *link) 1888{ 1889 struct net_device *dev = link->priv; 1890 int i = 0, j, ret; 1891 struct wl3501_card *this; 1892 1893 /* Try allocating IO ports. This tries a few fixed addresses. If you 1894 * want, you can also read the card's config table to pick addresses -- 1895 * see the serial driver for an example. */ 1896 link->io_lines = 5; 1897 1898 for (j = 0x280; j < 0x400; j += 0x20) { 1899 /* The '^0x300' is so that we probe 0x300-0x3ff first, then 1900 * 0x200-0x2ff, and so on, because this seems safer */ 1901 link->resource[0]->start = j; 1902 link->resource[1]->start = link->resource[0]->start + 0x10; 1903 i = pcmcia_request_io(link); 1904 if (i == 0) 1905 break; 1906 } 1907 if (i != 0) 1908 goto failed; 1909 1910 /* Now allocate an interrupt line. Note that this does not actually 1911 * assign a handler to the interrupt. */ 1912 1913 ret = pcmcia_request_irq(link, wl3501_interrupt); 1914 if (ret) 1915 goto failed; 1916 1917 ret = pcmcia_enable_device(link); 1918 if (ret) 1919 goto failed; 1920 1921 dev->irq = link->irq; 1922 dev->base_addr = link->resource[0]->start; 1923 SET_NETDEV_DEV(dev, &link->dev); 1924 if (register_netdev(dev)) { 1925 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n"); 1926 goto failed; 1927 } 1928 1929 this = netdev_priv(dev); 1930 1931 this->base_addr = dev->base_addr; 1932 1933 if (!wl3501_get_flash_mac_addr(this)) { 1934 printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n", 1935 dev->name); 1936 unregister_netdev(dev); 1937 goto failed; 1938 } 1939 1940 for (i = 0; i < 6; i++) 1941 dev->dev_addr[i] = ((char *)&this->mac_addr)[i]; 1942 1943 /* print probe information */ 1944 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, " 1945 "MAC addr in flash ROM:%pM\n", 1946 dev->name, this->base_addr, (int)dev->irq, 1947 dev->dev_addr); 1948 /* 1949 * Initialize card parameters - added by jss 1950 */ 1951 this->net_type = IW_MODE_INFRA; 1952 this->bss_cnt = 0; 1953 this->join_sta_bss = 0; 1954 this->adhoc_times = 0; 1955 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, 1956 "ANY", 3); 1957 this->card_name[0] = '\0'; 1958 this->firmware_date[0] = '\0'; 1959 this->rssi = 255; 1960 this->chan = iw_default_channel(this->reg_domain); 1961 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick)); 1962 spin_lock_init(&this->lock); 1963 init_waitqueue_head(&this->wait); 1964 netif_start_queue(dev); 1965 return 0; 1966 1967failed: 1968 wl3501_release(link); 1969 return -ENODEV; 1970} 1971 1972static void wl3501_release(struct pcmcia_device *link) 1973{ 1974 pcmcia_disable_device(link); 1975} 1976 1977static int wl3501_suspend(struct pcmcia_device *link) 1978{ 1979 struct net_device *dev = link->priv; 1980 1981 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND); 1982 if (link->open) 1983 netif_device_detach(dev); 1984 1985 return 0; 1986} 1987 1988static int wl3501_resume(struct pcmcia_device *link) 1989{ 1990 struct net_device *dev = link->priv; 1991 1992 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME); 1993 if (link->open) { 1994 wl3501_reset(dev); 1995 netif_device_attach(dev); 1996 } 1997 1998 return 0; 1999} 2000 2001 2002static const struct pcmcia_device_id wl3501_ids[] = { 2003 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001), 2004 PCMCIA_DEVICE_NULL 2005}; 2006MODULE_DEVICE_TABLE(pcmcia, wl3501_ids); 2007 2008static struct pcmcia_driver wl3501_driver = { 2009 .owner = THIS_MODULE, 2010 .name = "wl3501_cs", 2011 .probe = wl3501_probe, 2012 .remove = wl3501_detach, 2013 .id_table = wl3501_ids, 2014 .suspend = wl3501_suspend, 2015 .resume = wl3501_resume, 2016}; 2017 2018static int __init wl3501_init_module(void) 2019{ 2020 return pcmcia_register_driver(&wl3501_driver); 2021} 2022 2023static void __exit wl3501_exit_module(void) 2024{ 2025 pcmcia_unregister_driver(&wl3501_driver); 2026} 2027 2028module_init(wl3501_init_module); 2029module_exit(wl3501_exit_module); 2030 2031MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, " 2032 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>," 2033 "Gustavo Niemeyer <niemeyer@conectiva.com>"); 2034MODULE_DESCRIPTION("Planet wl3501 wireless driver"); 2035MODULE_LICENSE("GPL"); 2036