1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * WL3501 Wireless LAN PCMCIA Card Driver for Linux 4 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw 5 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br> 6 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com> 7 * 8 * References used by Fox Chen while writing the original driver for 2.0.30: 9 * 10 * 1. WL24xx packet drivers (tooasm.asm) 11 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO 12 * 3. IEEE 802.11 13 * 4. Linux network driver (/usr/src/linux/drivers/net) 14 * 5. ISA card driver - wl24.c 15 * 6. Linux PCMCIA skeleton driver - skeleton.c 16 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c 17 * 18 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12 19 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode. 20 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null 21 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct 22 * ETHER/IP/UDP/TCP header, and acknowledgement overhead) 23 * 24 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode, 25 * 173 Kbytes/s in TCP. 26 * 27 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode 28 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60) 29 */ 30 31 #include <linux/delay.h> 32 #include <linux/types.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 <net/cfg80211.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 <linux/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 78 static int wl3501_config(struct pcmcia_device *link); 79 static void wl3501_release(struct pcmcia_device *link); 80 81 static 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_domain: regulatory domain 138 * @channel: channel to validate 139 * 140 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid. 141 */ 142 static 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_domain: regulatory domain 158 * 159 * Returns the default channel for a regulatory domain 160 */ 161 static 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 } 172 173 static 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 } 181 182 static 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 } 187 188 static 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 */ 199 static 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 * @this: Card 241 * @dest: Card addressing space 242 * @src: PC addressing space 243 * @size: Bytes to move 244 * 245 * Move 'size' bytes from PC to card. (Shouldn't be interrupted) 246 */ 247 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, 248 int size) 249 { 250 /* switch to SRAM Page 0 */ 251 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 : 252 WL3501_BSS_SPAGE0); 253 /* set LMAL and LMAH */ 254 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL); 255 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH); 256 257 /* rep out to Port A */ 258 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size); 259 } 260 261 /** 262 * wl3501_get_from_wla - Move 'size' bytes from card to PC 263 * @this: Card 264 * @src: Card addressing space 265 * @dest: PC addressing space 266 * @size: Bytes to move 267 * 268 * Move 'size' bytes from card to PC. (Shouldn't be interrupted) 269 */ 270 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, 271 int size) 272 { 273 /* switch to SRAM Page 0 */ 274 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 : 275 WL3501_BSS_SPAGE0); 276 /* set LMAL and LMAH */ 277 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL); 278 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH); 279 280 /* rep get from Port A */ 281 insb(this->base_addr + WL3501_NIC_IODPA, dest, size); 282 } 283 284 /* 285 * Get/Allocate a free Tx Data Buffer 286 * 287 * *--------------*-----------------*----------------------------------* 288 * | PLCP | MAC Header | DST SRC Data ... | 289 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) | 290 * *--------------*-----------------*----------------------------------* 291 * \ \- IEEE 802.11 -/ \-------------- len --------------/ 292 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/ 293 * 294 * Return = Position in Card 295 */ 296 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len) 297 { 298 u16 next, blk_cnt = 0, zero = 0; 299 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len; 300 u16 ret = 0; 301 302 if (full_len > this->tx_buffer_cnt * 254) 303 goto out; 304 ret = this->tx_buffer_head; 305 while (full_len) { 306 if (full_len < 254) 307 full_len = 0; 308 else 309 full_len -= 254; 310 wl3501_get_from_wla(this, this->tx_buffer_head, &next, 311 sizeof(next)); 312 if (!full_len) 313 wl3501_set_to_wla(this, this->tx_buffer_head, &zero, 314 sizeof(zero)); 315 this->tx_buffer_head = next; 316 blk_cnt++; 317 /* if buffer is not enough */ 318 if (!next && full_len) { 319 this->tx_buffer_head = ret; 320 ret = 0; 321 goto out; 322 } 323 } 324 this->tx_buffer_cnt -= blk_cnt; 325 out: 326 return ret; 327 } 328 329 /* 330 * Free an allocated Tx Buffer. ptr must be correct position. 331 */ 332 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr) 333 { 334 /* check if all space is not free */ 335 if (!this->tx_buffer_head) 336 this->tx_buffer_head = ptr; 337 else 338 wl3501_set_to_wla(this, this->tx_buffer_tail, 339 &ptr, sizeof(ptr)); 340 while (ptr) { 341 u16 next; 342 343 this->tx_buffer_cnt++; 344 wl3501_get_from_wla(this, ptr, &next, sizeof(next)); 345 this->tx_buffer_tail = ptr; 346 ptr = next; 347 } 348 } 349 350 static int wl3501_esbq_req_test(struct wl3501_card *this) 351 { 352 u8 tmp = 0; 353 354 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp)); 355 return tmp & 0x80; 356 } 357 358 static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr) 359 { 360 u16 tmp = 0; 361 362 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2); 363 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp)); 364 this->esbq_req_head += 4; 365 if (this->esbq_req_head >= this->esbq_req_end) 366 this->esbq_req_head = this->esbq_req_start; 367 } 368 369 static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size) 370 { 371 int rc = -EIO; 372 373 if (wl3501_esbq_req_test(this)) { 374 u16 ptr = wl3501_get_tx_buffer(this, sig_size); 375 if (ptr) { 376 wl3501_set_to_wla(this, ptr, sig, sig_size); 377 wl3501_esbq_req(this, &ptr); 378 rc = 0; 379 } 380 } 381 return rc; 382 } 383 384 static int wl3501_request_mib(struct wl3501_card *this, u8 index, void *bf) 385 { 386 struct wl3501_get_req sig = { 387 .sig_id = WL3501_SIG_GET_REQ, 388 .mib_attrib = index, 389 }; 390 unsigned long flags; 391 int rc = -EIO; 392 393 spin_lock_irqsave(&this->lock, flags); 394 if (wl3501_esbq_req_test(this)) { 395 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); 396 if (ptr) { 397 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); 398 wl3501_esbq_req(this, &ptr); 399 this->sig_get_confirm.mib_status = 255; 400 rc = 0; 401 } 402 } 403 spin_unlock_irqrestore(&this->lock, flags); 404 405 return rc; 406 } 407 408 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index, 409 void *bf, int size) 410 { 411 int rc; 412 413 rc = wl3501_request_mib(this, index, bf); 414 if (rc) 415 return rc; 416 417 rc = wait_event_interruptible(this->wait, 418 this->sig_get_confirm.mib_status != 255); 419 if (rc) 420 return rc; 421 422 memcpy(bf, this->sig_get_confirm.mib_value, size); 423 return 0; 424 } 425 426 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend) 427 { 428 struct wl3501_pwr_mgmt_req sig = { 429 .sig_id = WL3501_SIG_PWR_MGMT_REQ, 430 .pwr_save = suspend, 431 .wake_up = !suspend, 432 .receive_dtims = 10, 433 }; 434 unsigned long flags; 435 int rc = -EIO; 436 437 spin_lock_irqsave(&this->lock, flags); 438 if (wl3501_esbq_req_test(this)) { 439 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); 440 if (ptr) { 441 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); 442 wl3501_esbq_req(this, &ptr); 443 this->sig_pwr_mgmt_confirm.status = 255; 444 spin_unlock_irqrestore(&this->lock, flags); 445 rc = wait_event_interruptible(this->wait, 446 this->sig_pwr_mgmt_confirm.status != 255); 447 printk(KERN_INFO "%s: %s status=%d\n", __func__, 448 suspend ? "suspend" : "resume", 449 this->sig_pwr_mgmt_confirm.status); 450 goto out; 451 } 452 } 453 spin_unlock_irqrestore(&this->lock, flags); 454 out: 455 return rc; 456 } 457 458 /** 459 * wl3501_send_pkt - Send a packet. 460 * @this: Card 461 * @data: Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr, 462 * data[6] - data[11] is Src MAC Addr) 463 * @len: Packet length 464 * Ref: IEEE 802.11 465 */ 466 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len) 467 { 468 u16 bf, sig_bf, next, tmplen, pktlen; 469 struct wl3501_md_req sig = { 470 .sig_id = WL3501_SIG_MD_REQ, 471 }; 472 size_t sig_addr_len = sizeof(sig.addr); 473 u8 *pdata = (char *)data; 474 int rc = -EIO; 475 476 if (wl3501_esbq_req_test(this)) { 477 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig)); 478 rc = -ENOMEM; 479 if (!sig_bf) /* No free buffer available */ 480 goto out; 481 bf = wl3501_get_tx_buffer(this, len + 26 + 24); 482 if (!bf) { 483 /* No free buffer available */ 484 wl3501_free_tx_buffer(this, sig_bf); 485 goto out; 486 } 487 rc = 0; 488 memcpy(&sig.addr, pdata, sig_addr_len); 489 pktlen = len - sig_addr_len; 490 pdata += sig_addr_len; 491 sig.data = bf; 492 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) { 493 u8 addr4[ETH_ALEN] = { 494 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00, 495 }; 496 497 wl3501_set_to_wla(this, bf + 2 + 498 offsetof(struct wl3501_tx_hdr, addr4), 499 addr4, sizeof(addr4)); 500 sig.size = pktlen + 24 + 4 + 6; 501 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) { 502 tmplen = 254 - sizeof(struct wl3501_tx_hdr); 503 pktlen -= tmplen; 504 } else { 505 tmplen = pktlen; 506 pktlen = 0; 507 } 508 wl3501_set_to_wla(this, 509 bf + 2 + sizeof(struct wl3501_tx_hdr), 510 pdata, tmplen); 511 pdata += tmplen; 512 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 513 bf = next; 514 } else { 515 sig.size = pktlen + 24 + 4 - 2; 516 pdata += 2; 517 pktlen -= 2; 518 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) { 519 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6; 520 pktlen -= tmplen; 521 } else { 522 tmplen = pktlen; 523 pktlen = 0; 524 } 525 wl3501_set_to_wla(this, bf + 2 + 526 offsetof(struct wl3501_tx_hdr, addr4), 527 pdata, tmplen); 528 pdata += tmplen; 529 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 530 bf = next; 531 } 532 while (pktlen > 0) { 533 if (pktlen > 254) { 534 tmplen = 254; 535 pktlen -= 254; 536 } else { 537 tmplen = pktlen; 538 pktlen = 0; 539 } 540 wl3501_set_to_wla(this, bf + 2, pdata, tmplen); 541 pdata += tmplen; 542 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 543 bf = next; 544 } 545 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig)); 546 wl3501_esbq_req(this, &sig_bf); 547 } 548 out: 549 return rc; 550 } 551 552 static int wl3501_mgmt_resync(struct wl3501_card *this) 553 { 554 struct wl3501_resync_req sig = { 555 .sig_id = WL3501_SIG_RESYNC_REQ, 556 }; 557 558 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 559 } 560 561 static inline int wl3501_fw_bss_type(struct wl3501_card *this) 562 { 563 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA : 564 WL3501_NET_TYPE_ADHOC; 565 } 566 567 static inline int wl3501_fw_cap_info(struct wl3501_card *this) 568 { 569 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS : 570 WL3501_MGMT_CAPABILITY_IBSS; 571 } 572 573 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time) 574 { 575 struct wl3501_scan_req sig = { 576 .sig_id = WL3501_SIG_SCAN_REQ, 577 .scan_type = WL3501_SCAN_TYPE_ACTIVE, 578 .probe_delay = 0x10, 579 .min_chan_time = chan_time, 580 .max_chan_time = chan_time, 581 .bss_type = wl3501_fw_bss_type(this), 582 }; 583 584 this->bss_cnt = this->join_sta_bss = 0; 585 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 586 } 587 588 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas) 589 { 590 struct wl3501_join_req sig = { 591 .sig_id = WL3501_SIG_JOIN_REQ, 592 .timeout = 10, 593 .req.ds_pset = { 594 .el = { 595 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, 596 .len = 1, 597 }, 598 .chan = this->chan, 599 }, 600 }; 601 602 memcpy(&sig.req, &this->bss_set[stas].req, sizeof(sig.req)); 603 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 604 } 605 606 static int wl3501_mgmt_start(struct wl3501_card *this) 607 { 608 struct wl3501_start_req sig = { 609 .sig_id = WL3501_SIG_START_REQ, 610 .beacon_period = 400, 611 .dtim_period = 1, 612 .ds_pset = { 613 .el = { 614 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, 615 .len = 1, 616 }, 617 .chan = this->chan, 618 }, 619 .bss_basic_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 .operational_rset = { 632 .el = { 633 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, 634 .len = 2, 635 }, 636 .data_rate_labels = { 637 [0] = IW_MGMT_RATE_LABEL_MANDATORY | 638 IW_MGMT_RATE_LABEL_1MBIT, 639 [1] = IW_MGMT_RATE_LABEL_MANDATORY | 640 IW_MGMT_RATE_LABEL_2MBIT, 641 }, 642 }, 643 .ibss_pset = { 644 .el = { 645 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET, 646 .len = 2, 647 }, 648 .atim_window = 10, 649 }, 650 .bss_type = wl3501_fw_bss_type(this), 651 .cap_info = wl3501_fw_cap_info(this), 652 }; 653 654 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el); 655 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el); 656 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 657 } 658 659 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr) 660 { 661 u16 i = 0; 662 int matchflag = 0; 663 struct wl3501_scan_confirm sig; 664 665 pr_debug("entry"); 666 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 667 if (sig.status == WL3501_STATUS_SUCCESS) { 668 pr_debug("success"); 669 if ((this->net_type == IW_MODE_INFRA && 670 (sig.req.cap_info & WL3501_MGMT_CAPABILITY_ESS)) || 671 (this->net_type == IW_MODE_ADHOC && 672 (sig.req.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) || 673 this->net_type == IW_MODE_AUTO) { 674 if (!this->essid.el.len) 675 matchflag = 1; 676 else if (this->essid.el.len == 3 && 677 !memcmp(this->essid.essid, "ANY", 3)) 678 matchflag = 1; 679 else if (this->essid.el.len != sig.req.ssid.el.len) 680 matchflag = 0; 681 else if (memcmp(this->essid.essid, sig.req.ssid.essid, 682 this->essid.el.len)) 683 matchflag = 0; 684 else 685 matchflag = 1; 686 if (matchflag) { 687 for (i = 0; i < this->bss_cnt; i++) { 688 if (ether_addr_equal_unaligned(this->bss_set[i].req.bssid, 689 sig.req.bssid)) { 690 matchflag = 0; 691 break; 692 } 693 } 694 } 695 if (matchflag && (i < 20)) { 696 memcpy(&this->bss_set[i].req, 697 &sig.req, sizeof(sig.req)); 698 this->bss_cnt++; 699 this->rssi = sig.rssi; 700 this->bss_set[i].rssi = sig.rssi; 701 } 702 } 703 } else if (sig.status == WL3501_STATUS_TIMEOUT) { 704 pr_debug("timeout"); 705 this->join_sta_bss = 0; 706 for (i = this->join_sta_bss; i < this->bss_cnt; i++) 707 if (!wl3501_mgmt_join(this, i)) 708 break; 709 this->join_sta_bss = i; 710 if (this->join_sta_bss == this->bss_cnt) { 711 if (this->net_type == IW_MODE_INFRA) 712 wl3501_mgmt_scan(this, 100); 713 else { 714 this->adhoc_times++; 715 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) 716 wl3501_mgmt_start(this); 717 else 718 wl3501_mgmt_scan(this, 100); 719 } 720 } 721 } 722 } 723 724 /** 725 * wl3501_block_interrupt - Mask interrupt from SUTRO 726 * @this: Card 727 * 728 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST) 729 * Return: 1 if interrupt is originally enabled 730 */ 731 static int wl3501_block_interrupt(struct wl3501_card *this) 732 { 733 u8 old = inb(this->base_addr + WL3501_NIC_GCR); 734 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC | 735 WL3501_GCR_ENECINT)); 736 737 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); 738 return old & WL3501_GCR_ENECINT; 739 } 740 741 /** 742 * wl3501_unblock_interrupt - Enable interrupt from SUTRO 743 * @this: Card 744 * 745 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST) 746 * Return: 1 if interrupt is originally enabled 747 */ 748 static int wl3501_unblock_interrupt(struct wl3501_card *this) 749 { 750 u8 old = inb(this->base_addr + WL3501_NIC_GCR); 751 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) | 752 WL3501_GCR_ENECINT; 753 754 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); 755 return old & WL3501_GCR_ENECINT; 756 } 757 758 /** 759 * wl3501_receive - Receive data from Receive Queue. 760 * 761 * Receive data from Receive Queue. 762 * 763 * @this: card 764 * @bf: address of host 765 * @size: size of buffer. 766 */ 767 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size) 768 { 769 u16 next_addr, next_addr1; 770 u8 *data = bf + 12; 771 772 size -= 12; 773 wl3501_get_from_wla(this, this->start_seg + 2, 774 &next_addr, sizeof(next_addr)); 775 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) { 776 wl3501_get_from_wla(this, 777 this->start_seg + 778 sizeof(struct wl3501_rx_hdr), data, 779 WL3501_BLKSZ - 780 sizeof(struct wl3501_rx_hdr)); 781 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); 782 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); 783 } else { 784 wl3501_get_from_wla(this, 785 this->start_seg + 786 sizeof(struct wl3501_rx_hdr), 787 data, size); 788 size = 0; 789 } 790 while (size > 0) { 791 if (size > WL3501_BLKSZ - 5) { 792 wl3501_get_from_wla(this, next_addr + 5, data, 793 WL3501_BLKSZ - 5); 794 size -= WL3501_BLKSZ - 5; 795 data += WL3501_BLKSZ - 5; 796 wl3501_get_from_wla(this, next_addr + 2, &next_addr1, 797 sizeof(next_addr1)); 798 next_addr = next_addr1; 799 } else { 800 wl3501_get_from_wla(this, next_addr + 5, data, size); 801 size = 0; 802 } 803 } 804 return 0; 805 } 806 807 static void wl3501_esbq_req_free(struct wl3501_card *this) 808 { 809 u8 tmp; 810 u16 addr; 811 812 if (this->esbq_req_head == this->esbq_req_tail) 813 goto out; 814 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp)); 815 if (!(tmp & 0x80)) 816 goto out; 817 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr)); 818 wl3501_free_tx_buffer(this, addr); 819 this->esbq_req_tail += 4; 820 if (this->esbq_req_tail >= this->esbq_req_end) 821 this->esbq_req_tail = this->esbq_req_start; 822 out: 823 return; 824 } 825 826 static int wl3501_esbq_confirm(struct wl3501_card *this) 827 { 828 u8 tmp; 829 830 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); 831 return tmp & 0x80; 832 } 833 834 static void wl3501_online(struct net_device *dev) 835 { 836 struct wl3501_card *this = netdev_priv(dev); 837 838 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n", 839 dev->name, this->bssid); 840 netif_wake_queue(dev); 841 } 842 843 static void wl3501_esbq_confirm_done(struct wl3501_card *this) 844 { 845 u8 tmp = 0; 846 847 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); 848 this->esbq_confirm += 4; 849 if (this->esbq_confirm >= this->esbq_confirm_end) 850 this->esbq_confirm = this->esbq_confirm_start; 851 } 852 853 static int wl3501_mgmt_auth(struct wl3501_card *this) 854 { 855 struct wl3501_auth_req sig = { 856 .sig_id = WL3501_SIG_AUTH_REQ, 857 .type = WL3501_SYS_TYPE_OPEN, 858 .timeout = 1000, 859 }; 860 861 pr_debug("entry"); 862 memcpy(sig.mac_addr, this->bssid, ETH_ALEN); 863 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 864 } 865 866 static int wl3501_mgmt_association(struct wl3501_card *this) 867 { 868 struct wl3501_assoc_req sig = { 869 .sig_id = WL3501_SIG_ASSOC_REQ, 870 .timeout = 1000, 871 .listen_interval = 5, 872 .cap_info = this->cap_info, 873 }; 874 875 pr_debug("entry"); 876 memcpy(sig.mac_addr, this->bssid, ETH_ALEN); 877 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 878 } 879 880 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr) 881 { 882 struct wl3501_card *this = netdev_priv(dev); 883 struct wl3501_join_confirm sig; 884 885 pr_debug("entry"); 886 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 887 if (sig.status == WL3501_STATUS_SUCCESS) { 888 if (this->net_type == IW_MODE_INFRA) { 889 if (this->join_sta_bss < this->bss_cnt) { 890 const int i = this->join_sta_bss; 891 memcpy(this->bssid, 892 this->bss_set[i].req.bssid, ETH_ALEN); 893 this->chan = this->bss_set[i].req.ds_pset.chan; 894 iw_copy_mgmt_info_element(&this->keep_essid.el, 895 &this->bss_set[i].req.ssid.el); 896 wl3501_mgmt_auth(this); 897 } 898 } else { 899 const int i = this->join_sta_bss; 900 901 memcpy(&this->bssid, &this->bss_set[i].req.bssid, ETH_ALEN); 902 this->chan = this->bss_set[i].req.ds_pset.chan; 903 iw_copy_mgmt_info_element(&this->keep_essid.el, 904 &this->bss_set[i].req.ssid.el); 905 wl3501_online(dev); 906 } 907 } else { 908 int i; 909 this->join_sta_bss++; 910 for (i = this->join_sta_bss; i < this->bss_cnt; i++) 911 if (!wl3501_mgmt_join(this, i)) 912 break; 913 this->join_sta_bss = i; 914 if (this->join_sta_bss == this->bss_cnt) { 915 if (this->net_type == IW_MODE_INFRA) 916 wl3501_mgmt_scan(this, 100); 917 else { 918 this->adhoc_times++; 919 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) 920 wl3501_mgmt_start(this); 921 else 922 wl3501_mgmt_scan(this, 100); 923 } 924 } 925 } 926 } 927 928 static inline void wl3501_alarm_interrupt(struct net_device *dev, 929 struct wl3501_card *this) 930 { 931 if (this->net_type == IW_MODE_INFRA) { 932 printk(KERN_INFO "Wireless LAN offline\n"); 933 netif_stop_queue(dev); 934 wl3501_mgmt_resync(this); 935 } 936 } 937 938 static inline void wl3501_md_confirm_interrupt(struct net_device *dev, 939 struct wl3501_card *this, 940 u16 addr) 941 { 942 struct wl3501_md_confirm sig; 943 944 pr_debug("entry"); 945 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 946 wl3501_free_tx_buffer(this, sig.data); 947 if (netif_queue_stopped(dev)) 948 netif_wake_queue(dev); 949 } 950 951 static inline void wl3501_md_ind_interrupt(struct net_device *dev, 952 struct wl3501_card *this, u16 addr) 953 { 954 struct wl3501_md_ind sig; 955 struct sk_buff *skb; 956 u8 rssi, addr4[ETH_ALEN]; 957 u16 pkt_len; 958 959 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 960 this->start_seg = sig.data; 961 wl3501_get_from_wla(this, 962 sig.data + offsetof(struct wl3501_rx_hdr, rssi), 963 &rssi, sizeof(rssi)); 964 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255; 965 966 wl3501_get_from_wla(this, 967 sig.data + 968 offsetof(struct wl3501_rx_hdr, addr4), 969 &addr4, sizeof(addr4)); 970 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA && 971 addr4[2] == 0x03 && addr4[4] == 0x00)) { 972 printk(KERN_INFO "Unsupported packet type!\n"); 973 return; 974 } 975 pkt_len = sig.size + 12 - 24 - 4 - 6; 976 977 skb = dev_alloc_skb(pkt_len + 5); 978 979 if (!skb) { 980 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n", 981 dev->name, pkt_len); 982 dev->stats.rx_dropped++; 983 } else { 984 skb->dev = dev; 985 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */ 986 skb_copy_to_linear_data(skb, (unsigned char *)&sig.addr, 987 sizeof(sig.addr)); 988 wl3501_receive(this, skb->data, pkt_len); 989 skb_put(skb, pkt_len); 990 skb->protocol = eth_type_trans(skb, dev); 991 dev->stats.rx_packets++; 992 dev->stats.rx_bytes += skb->len; 993 netif_rx(skb); 994 } 995 } 996 997 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this, 998 u16 addr, void *sig, int size) 999 { 1000 pr_debug("entry"); 1001 wl3501_get_from_wla(this, addr, &this->sig_get_confirm, 1002 sizeof(this->sig_get_confirm)); 1003 wake_up(&this->wait); 1004 } 1005 1006 static inline void wl3501_start_confirm_interrupt(struct net_device *dev, 1007 struct wl3501_card *this, 1008 u16 addr) 1009 { 1010 struct wl3501_start_confirm sig; 1011 1012 pr_debug("entry"); 1013 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1014 if (sig.status == WL3501_STATUS_SUCCESS) 1015 netif_wake_queue(dev); 1016 } 1017 1018 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev, 1019 u16 addr) 1020 { 1021 struct wl3501_card *this = netdev_priv(dev); 1022 struct wl3501_assoc_confirm sig; 1023 1024 pr_debug("entry"); 1025 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1026 1027 if (sig.status == WL3501_STATUS_SUCCESS) 1028 wl3501_online(dev); 1029 } 1030 1031 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this, 1032 u16 addr) 1033 { 1034 struct wl3501_auth_confirm sig; 1035 1036 pr_debug("entry"); 1037 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1038 1039 if (sig.status == WL3501_STATUS_SUCCESS) 1040 wl3501_mgmt_association(this); 1041 else 1042 wl3501_mgmt_resync(this); 1043 } 1044 1045 static inline void wl3501_rx_interrupt(struct net_device *dev) 1046 { 1047 int morepkts; 1048 u16 addr; 1049 u8 sig_id; 1050 struct wl3501_card *this = netdev_priv(dev); 1051 1052 pr_debug("entry"); 1053 loop: 1054 morepkts = 0; 1055 if (!wl3501_esbq_confirm(this)) 1056 goto free; 1057 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr)); 1058 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id)); 1059 1060 switch (sig_id) { 1061 case WL3501_SIG_DEAUTH_IND: 1062 case WL3501_SIG_DISASSOC_IND: 1063 case WL3501_SIG_ALARM: 1064 wl3501_alarm_interrupt(dev, this); 1065 break; 1066 case WL3501_SIG_MD_CONFIRM: 1067 wl3501_md_confirm_interrupt(dev, this, addr); 1068 break; 1069 case WL3501_SIG_MD_IND: 1070 wl3501_md_ind_interrupt(dev, this, addr); 1071 break; 1072 case WL3501_SIG_GET_CONFIRM: 1073 wl3501_get_confirm_interrupt(this, addr, 1074 &this->sig_get_confirm, 1075 sizeof(this->sig_get_confirm)); 1076 break; 1077 case WL3501_SIG_PWR_MGMT_CONFIRM: 1078 wl3501_get_confirm_interrupt(this, addr, 1079 &this->sig_pwr_mgmt_confirm, 1080 sizeof(this->sig_pwr_mgmt_confirm)); 1081 break; 1082 case WL3501_SIG_START_CONFIRM: 1083 wl3501_start_confirm_interrupt(dev, this, addr); 1084 break; 1085 case WL3501_SIG_SCAN_CONFIRM: 1086 wl3501_mgmt_scan_confirm(this, addr); 1087 break; 1088 case WL3501_SIG_JOIN_CONFIRM: 1089 wl3501_mgmt_join_confirm(dev, addr); 1090 break; 1091 case WL3501_SIG_ASSOC_CONFIRM: 1092 wl3501_assoc_confirm_interrupt(dev, addr); 1093 break; 1094 case WL3501_SIG_AUTH_CONFIRM: 1095 wl3501_auth_confirm_interrupt(this, addr); 1096 break; 1097 case WL3501_SIG_RESYNC_CONFIRM: 1098 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */ 1099 break; 1100 } 1101 wl3501_esbq_confirm_done(this); 1102 morepkts = 1; 1103 /* free request if necessary */ 1104 free: 1105 wl3501_esbq_req_free(this); 1106 if (morepkts) 1107 goto loop; 1108 } 1109 1110 static inline void wl3501_ack_interrupt(struct wl3501_card *this) 1111 { 1112 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR); 1113 } 1114 1115 /** 1116 * wl3501_interrupt - Hardware interrupt from card. 1117 * @irq: Interrupt number 1118 * @dev_id: net_device 1119 * 1120 * We must acknowledge the interrupt as soon as possible, and block the 1121 * interrupt from the same card immediately to prevent re-entry. 1122 * 1123 * Before accessing the Control_Status_Block, we must lock SUTRO first. 1124 * On the other hand, to prevent SUTRO from malfunctioning, we must 1125 * unlock the SUTRO as soon as possible. 1126 */ 1127 static irqreturn_t wl3501_interrupt(int irq, void *dev_id) 1128 { 1129 struct net_device *dev = dev_id; 1130 struct wl3501_card *this; 1131 1132 this = netdev_priv(dev); 1133 spin_lock(&this->lock); 1134 wl3501_ack_interrupt(this); 1135 wl3501_block_interrupt(this); 1136 wl3501_rx_interrupt(dev); 1137 wl3501_unblock_interrupt(this); 1138 spin_unlock(&this->lock); 1139 1140 return IRQ_HANDLED; 1141 } 1142 1143 static int wl3501_reset_board(struct wl3501_card *this) 1144 { 1145 u8 tmp = 0; 1146 int i, rc = 0; 1147 1148 /* Coreset */ 1149 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); 1150 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); 1151 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); 1152 1153 /* Reset SRAM 0x480 to zero */ 1154 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); 1155 1156 /* Start up */ 1157 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); 1158 1159 WL3501_NOPLOOP(1024 * 50); 1160 1161 wl3501_unblock_interrupt(this); /* acme: was commented */ 1162 1163 /* Polling Self_Test_Status */ 1164 for (i = 0; i < 10000; i++) { 1165 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp)); 1166 1167 if (tmp == 'W') { 1168 /* firmware complete all test successfully */ 1169 tmp = 'A'; 1170 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); 1171 goto out; 1172 } 1173 WL3501_NOPLOOP(10); 1174 } 1175 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__); 1176 rc = -ENODEV; 1177 out: 1178 return rc; 1179 } 1180 1181 static int wl3501_init_firmware(struct wl3501_card *this) 1182 { 1183 u16 ptr, next; 1184 int rc = wl3501_reset_board(this); 1185 1186 if (rc) 1187 goto fail; 1188 this->card_name[0] = '\0'; 1189 wl3501_get_from_wla(this, 0x1a00, 1190 this->card_name, sizeof(this->card_name)); 1191 this->card_name[sizeof(this->card_name) - 1] = '\0'; 1192 this->firmware_date[0] = '\0'; 1193 wl3501_get_from_wla(this, 0x1a40, 1194 this->firmware_date, sizeof(this->firmware_date)); 1195 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0'; 1196 /* Switch to SRAM Page 0 */ 1197 wl3501_switch_page(this, WL3501_BSS_SPAGE0); 1198 /* Read parameter from card */ 1199 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2); 1200 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2); 1201 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2); 1202 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2); 1203 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2); 1204 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2); 1205 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start; 1206 this->esbq_req_end += this->esbq_req_start; 1207 this->esbq_confirm = this->esbq_confirm_start; 1208 this->esbq_confirm_end += this->esbq_confirm_start; 1209 /* Initial Tx Buffer */ 1210 this->tx_buffer_cnt = 1; 1211 ptr = this->tx_buffer_head; 1212 next = ptr + WL3501_BLKSZ; 1213 while ((next - this->tx_buffer_head) < this->tx_buffer_size) { 1214 this->tx_buffer_cnt++; 1215 wl3501_set_to_wla(this, ptr, &next, sizeof(next)); 1216 ptr = next; 1217 next = ptr + WL3501_BLKSZ; 1218 } 1219 rc = 0; 1220 next = 0; 1221 wl3501_set_to_wla(this, ptr, &next, sizeof(next)); 1222 this->tx_buffer_tail = ptr; 1223 out: 1224 return rc; 1225 fail: 1226 printk(KERN_WARNING "%s: failed!\n", __func__); 1227 goto out; 1228 } 1229 1230 static int wl3501_close(struct net_device *dev) 1231 { 1232 struct wl3501_card *this = netdev_priv(dev); 1233 unsigned long flags; 1234 struct pcmcia_device *link; 1235 link = this->p_dev; 1236 1237 spin_lock_irqsave(&this->lock, flags); 1238 link->open--; 1239 1240 /* Stop wl3501_hard_start_xmit() from now on */ 1241 netif_stop_queue(dev); 1242 wl3501_ack_interrupt(this); 1243 1244 /* Mask interrupts from the SUTRO */ 1245 wl3501_block_interrupt(this); 1246 1247 printk(KERN_INFO "%s: WL3501 closed\n", dev->name); 1248 spin_unlock_irqrestore(&this->lock, flags); 1249 return 0; 1250 } 1251 1252 /** 1253 * wl3501_reset - Reset the SUTRO. 1254 * @dev: network device 1255 * 1256 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close() 1257 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver 1258 * is running. It seems to be dangerous. 1259 */ 1260 static int wl3501_reset(struct net_device *dev) 1261 { 1262 struct wl3501_card *this = netdev_priv(dev); 1263 int rc = -ENODEV; 1264 unsigned long flags; 1265 1266 spin_lock_irqsave(&this->lock, flags); 1267 wl3501_block_interrupt(this); 1268 1269 if (wl3501_init_firmware(this)) { 1270 printk(KERN_WARNING "%s: Can't initialize Firmware!\n", 1271 dev->name); 1272 /* Free IRQ, and mark IRQ as unused */ 1273 free_irq(dev->irq, dev); 1274 goto out; 1275 } 1276 1277 /* 1278 * Queue has to be started only when the Card is Started 1279 */ 1280 netif_stop_queue(dev); 1281 this->adhoc_times = 0; 1282 wl3501_ack_interrupt(this); 1283 wl3501_unblock_interrupt(this); 1284 wl3501_mgmt_scan(this, 100); 1285 pr_debug("%s: device reset", dev->name); 1286 rc = 0; 1287 out: 1288 spin_unlock_irqrestore(&this->lock, flags); 1289 return rc; 1290 } 1291 1292 static void wl3501_tx_timeout(struct net_device *dev, unsigned int txqueue) 1293 { 1294 struct net_device_stats *stats = &dev->stats; 1295 int rc; 1296 1297 stats->tx_errors++; 1298 rc = wl3501_reset(dev); 1299 if (rc) 1300 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n", 1301 dev->name, rc); 1302 else { 1303 netif_trans_update(dev); /* prevent tx timeout */ 1304 netif_wake_queue(dev); 1305 } 1306 } 1307 1308 /* 1309 * Return : 0 - OK 1310 * 1 - Could not transmit (dev_queue_xmit will queue it) 1311 * and try to sent it later 1312 */ 1313 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb, 1314 struct net_device *dev) 1315 { 1316 int enabled, rc; 1317 struct wl3501_card *this = netdev_priv(dev); 1318 unsigned long flags; 1319 1320 spin_lock_irqsave(&this->lock, flags); 1321 enabled = wl3501_block_interrupt(this); 1322 rc = wl3501_send_pkt(this, skb->data, skb->len); 1323 if (enabled) 1324 wl3501_unblock_interrupt(this); 1325 if (rc) { 1326 ++dev->stats.tx_dropped; 1327 netif_stop_queue(dev); 1328 } else { 1329 ++dev->stats.tx_packets; 1330 dev->stats.tx_bytes += skb->len; 1331 dev_kfree_skb_irq(skb); 1332 1333 if (this->tx_buffer_cnt < 2) 1334 netif_stop_queue(dev); 1335 } 1336 spin_unlock_irqrestore(&this->lock, flags); 1337 return NETDEV_TX_OK; 1338 } 1339 1340 static int wl3501_open(struct net_device *dev) 1341 { 1342 int rc = -ENODEV; 1343 struct wl3501_card *this = netdev_priv(dev); 1344 unsigned long flags; 1345 struct pcmcia_device *link; 1346 link = this->p_dev; 1347 1348 spin_lock_irqsave(&this->lock, flags); 1349 if (!pcmcia_dev_present(link)) 1350 goto out; 1351 netif_device_attach(dev); 1352 link->open++; 1353 1354 /* Initial WL3501 firmware */ 1355 pr_debug("%s: Initialize WL3501 firmware...", dev->name); 1356 if (wl3501_init_firmware(this)) 1357 goto fail; 1358 /* Initial device variables */ 1359 this->adhoc_times = 0; 1360 /* Acknowledge Interrupt, for cleaning last state */ 1361 wl3501_ack_interrupt(this); 1362 1363 /* Enable interrupt from card after all */ 1364 wl3501_unblock_interrupt(this); 1365 wl3501_mgmt_scan(this, 100); 1366 rc = 0; 1367 pr_debug("%s: WL3501 opened", dev->name); 1368 printk(KERN_INFO "%s: Card Name: %s\n" 1369 "%s: Firmware Date: %s\n", 1370 dev->name, this->card_name, 1371 dev->name, this->firmware_date); 1372 out: 1373 spin_unlock_irqrestore(&this->lock, flags); 1374 return rc; 1375 fail: 1376 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name); 1377 goto out; 1378 } 1379 1380 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) 1381 { 1382 struct wl3501_card *this = netdev_priv(dev); 1383 struct iw_statistics *wstats = &this->wstats; 1384 u32 value; /* size checked: it is u32 */ 1385 1386 memset(wstats, 0, sizeof(*wstats)); 1387 wstats->status = netif_running(dev); 1388 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT, 1389 &value, sizeof(value))) 1390 wstats->discard.code += value; 1391 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT, 1392 &value, sizeof(value))) 1393 wstats->discard.code += value; 1394 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT, 1395 &value, sizeof(value))) 1396 wstats->discard.code += value; 1397 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT, 1398 &value, sizeof(value))) 1399 wstats->discard.retries = value; 1400 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT, 1401 &value, sizeof(value))) 1402 wstats->discard.misc += value; 1403 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT, 1404 &value, sizeof(value))) 1405 wstats->discard.misc += value; 1406 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT, 1407 &value, sizeof(value))) 1408 wstats->discard.misc += value; 1409 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT, 1410 &value, sizeof(value))) 1411 wstats->discard.misc += value; 1412 return wstats; 1413 } 1414 1415 /** 1416 * wl3501_detach - deletes a driver "instance" 1417 * @link: FILL_IN 1418 * 1419 * This deletes a driver "instance". The device is de-registered with Card 1420 * Services. If it has been released, all local data structures are freed. 1421 * Otherwise, the structures will be freed when the device is released. 1422 */ 1423 static void wl3501_detach(struct pcmcia_device *link) 1424 { 1425 struct net_device *dev = link->priv; 1426 1427 /* If the device is currently configured and active, we won't actually 1428 * delete it yet. Instead, it is marked so that when the release() 1429 * function is called, that will trigger a proper detach(). */ 1430 1431 while (link->open > 0) 1432 wl3501_close(dev); 1433 1434 netif_device_detach(dev); 1435 wl3501_release(link); 1436 1437 unregister_netdev(dev); 1438 free_netdev(dev); 1439 } 1440 1441 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info, 1442 union iwreq_data *wrqu, char *extra) 1443 { 1444 strscpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name)); 1445 return 0; 1446 } 1447 1448 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info, 1449 union iwreq_data *wrqu, char *extra) 1450 { 1451 struct wl3501_card *this = netdev_priv(dev); 1452 int channel = wrqu->freq.m; 1453 int rc = -EINVAL; 1454 1455 if (iw_valid_channel(this->reg_domain, channel)) { 1456 this->chan = channel; 1457 rc = wl3501_reset(dev); 1458 } 1459 return rc; 1460 } 1461 1462 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info, 1463 union iwreq_data *wrqu, char *extra) 1464 { 1465 struct wl3501_card *this = netdev_priv(dev); 1466 1467 wrqu->freq.m = 100000 * 1468 ieee80211_channel_to_frequency(this->chan, NL80211_BAND_2GHZ); 1469 wrqu->freq.e = 1; 1470 return 0; 1471 } 1472 1473 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info, 1474 union iwreq_data *wrqu, char *extra) 1475 { 1476 int rc = -EINVAL; 1477 1478 if (wrqu->mode == IW_MODE_INFRA || 1479 wrqu->mode == IW_MODE_ADHOC || 1480 wrqu->mode == IW_MODE_AUTO) { 1481 struct wl3501_card *this = netdev_priv(dev); 1482 1483 this->net_type = wrqu->mode; 1484 rc = wl3501_reset(dev); 1485 } 1486 return rc; 1487 } 1488 1489 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info, 1490 union iwreq_data *wrqu, char *extra) 1491 { 1492 struct wl3501_card *this = netdev_priv(dev); 1493 1494 wrqu->mode = this->net_type; 1495 return 0; 1496 } 1497 1498 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info, 1499 union iwreq_data *wrqu, char *extra) 1500 { 1501 struct wl3501_card *this = netdev_priv(dev); 1502 1503 wrqu->sens.value = this->rssi; 1504 wrqu->sens.disabled = !wrqu->sens.value; 1505 wrqu->sens.fixed = 1; 1506 return 0; 1507 } 1508 1509 static int wl3501_get_range(struct net_device *dev, 1510 struct iw_request_info *info, 1511 union iwreq_data *wrqu, char *extra) 1512 { 1513 struct iw_range *range = (struct iw_range *)extra; 1514 1515 /* Set the length (very important for backward compatibility) */ 1516 wrqu->data.length = sizeof(*range); 1517 1518 /* Set all the info we don't care or don't know about to zero */ 1519 memset(range, 0, sizeof(*range)); 1520 1521 /* Set the Wireless Extension versions */ 1522 range->we_version_compiled = WIRELESS_EXT; 1523 range->we_version_source = 1; 1524 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */ 1525 /* FIXME: study the code to fill in more fields... */ 1526 return 0; 1527 } 1528 1529 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info, 1530 union iwreq_data *wrqu, char *extra) 1531 { 1532 struct wl3501_card *this = netdev_priv(dev); 1533 int rc = -EINVAL; 1534 1535 /* FIXME: we support other ARPHRDs...*/ 1536 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) 1537 goto out; 1538 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data)) { 1539 /* FIXME: rescan? */ 1540 } else 1541 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); 1542 /* FIXME: rescan? deassoc & scan? */ 1543 rc = 0; 1544 out: 1545 return rc; 1546 } 1547 1548 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info, 1549 union iwreq_data *wrqu, char *extra) 1550 { 1551 struct wl3501_card *this = netdev_priv(dev); 1552 1553 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1554 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN); 1555 return 0; 1556 } 1557 1558 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info, 1559 union iwreq_data *wrqu, char *extra) 1560 { 1561 /* 1562 * FIXME: trigger scanning with a reset, yes, I'm lazy 1563 */ 1564 return wl3501_reset(dev); 1565 } 1566 1567 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info, 1568 union iwreq_data *wrqu, char *extra) 1569 { 1570 struct wl3501_card *this = netdev_priv(dev); 1571 int i; 1572 char *current_ev = extra; 1573 struct iw_event iwe; 1574 1575 for (i = 0; i < this->bss_cnt; ++i) { 1576 iwe.cmd = SIOCGIWAP; 1577 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 1578 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].req.bssid, ETH_ALEN); 1579 current_ev = iwe_stream_add_event(info, current_ev, 1580 extra + IW_SCAN_MAX_DATA, 1581 &iwe, IW_EV_ADDR_LEN); 1582 iwe.cmd = SIOCGIWESSID; 1583 iwe.u.data.flags = 1; 1584 iwe.u.data.length = this->bss_set[i].req.ssid.el.len; 1585 current_ev = iwe_stream_add_point(info, current_ev, 1586 extra + IW_SCAN_MAX_DATA, 1587 &iwe, 1588 this->bss_set[i].req.ssid.essid); 1589 iwe.cmd = SIOCGIWMODE; 1590 iwe.u.mode = this->bss_set[i].req.bss_type; 1591 current_ev = iwe_stream_add_event(info, current_ev, 1592 extra + IW_SCAN_MAX_DATA, 1593 &iwe, IW_EV_UINT_LEN); 1594 iwe.cmd = SIOCGIWFREQ; 1595 iwe.u.freq.m = this->bss_set[i].req.ds_pset.chan; 1596 iwe.u.freq.e = 0; 1597 current_ev = iwe_stream_add_event(info, current_ev, 1598 extra + IW_SCAN_MAX_DATA, 1599 &iwe, IW_EV_FREQ_LEN); 1600 iwe.cmd = SIOCGIWENCODE; 1601 if (this->bss_set[i].req.cap_info & WL3501_MGMT_CAPABILITY_PRIVACY) 1602 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; 1603 else 1604 iwe.u.data.flags = IW_ENCODE_DISABLED; 1605 iwe.u.data.length = 0; 1606 current_ev = iwe_stream_add_point(info, current_ev, 1607 extra + IW_SCAN_MAX_DATA, 1608 &iwe, NULL); 1609 } 1610 /* Length of data */ 1611 wrqu->data.length = (current_ev - extra); 1612 wrqu->data.flags = 0; /* FIXME: set properly these flags */ 1613 return 0; 1614 } 1615 1616 static int wl3501_set_essid(struct net_device *dev, 1617 struct iw_request_info *info, 1618 union iwreq_data *wrqu, char *extra) 1619 { 1620 struct wl3501_card *this = netdev_priv(dev); 1621 1622 if (wrqu->data.flags) { 1623 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, 1624 &this->essid.el, 1625 extra, wrqu->data.length); 1626 } else { /* We accept any ESSID */ 1627 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, 1628 &this->essid.el, "ANY", 3); 1629 } 1630 return wl3501_reset(dev); 1631 } 1632 1633 static int wl3501_get_essid(struct net_device *dev, 1634 struct iw_request_info *info, 1635 union iwreq_data *wrqu, char *extra) 1636 { 1637 struct wl3501_card *this = netdev_priv(dev); 1638 unsigned long flags; 1639 1640 spin_lock_irqsave(&this->lock, flags); 1641 wrqu->essid.flags = 1; 1642 wrqu->essid.length = this->essid.el.len; 1643 memcpy(extra, this->essid.essid, this->essid.el.len); 1644 spin_unlock_irqrestore(&this->lock, flags); 1645 return 0; 1646 } 1647 1648 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info, 1649 union iwreq_data *wrqu, char *extra) 1650 { 1651 struct wl3501_card *this = netdev_priv(dev); 1652 1653 if (wrqu->data.length > sizeof(this->nick)) 1654 return -E2BIG; 1655 strscpy(this->nick, extra, wrqu->data.length); 1656 return 0; 1657 } 1658 1659 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info, 1660 union iwreq_data *wrqu, char *extra) 1661 { 1662 struct wl3501_card *this = netdev_priv(dev); 1663 1664 strscpy(extra, this->nick, 32); 1665 wrqu->data.length = strlen(extra); 1666 return 0; 1667 } 1668 1669 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info, 1670 union iwreq_data *wrqu, char *extra) 1671 { 1672 /* 1673 * FIXME: have to see from where to get this info, perhaps this card 1674 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most 1675 * common with the Planet Access Points. -acme 1676 */ 1677 wrqu->bitrate.value = 2000000; 1678 wrqu->bitrate.fixed = 1; 1679 return 0; 1680 } 1681 1682 static int wl3501_get_rts_threshold(struct net_device *dev, 1683 struct iw_request_info *info, 1684 union iwreq_data *wrqu, char *extra) 1685 { 1686 u16 threshold; /* size checked: it is u16 */ 1687 struct wl3501_card *this = netdev_priv(dev); 1688 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD, 1689 &threshold, sizeof(threshold)); 1690 if (!rc) { 1691 wrqu->rts.value = threshold; 1692 wrqu->rts.disabled = threshold >= 2347; 1693 wrqu->rts.fixed = 1; 1694 } 1695 return rc; 1696 } 1697 1698 static int wl3501_get_frag_threshold(struct net_device *dev, 1699 struct iw_request_info *info, 1700 union iwreq_data *wrqu, char *extra) 1701 { 1702 u16 threshold; /* size checked: it is u16 */ 1703 struct wl3501_card *this = netdev_priv(dev); 1704 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD, 1705 &threshold, sizeof(threshold)); 1706 if (!rc) { 1707 wrqu->frag.value = threshold; 1708 wrqu->frag.disabled = threshold >= 2346; 1709 wrqu->frag.fixed = 1; 1710 } 1711 return rc; 1712 } 1713 1714 static int wl3501_get_txpow(struct net_device *dev, 1715 struct iw_request_info *info, 1716 union iwreq_data *wrqu, char *extra) 1717 { 1718 u16 txpow; 1719 struct wl3501_card *this = netdev_priv(dev); 1720 int rc = wl3501_get_mib_value(this, 1721 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL, 1722 &txpow, sizeof(txpow)); 1723 if (!rc) { 1724 wrqu->txpower.value = txpow; 1725 wrqu->txpower.disabled = 0; 1726 /* 1727 * From the MIB values I think this can be configurable, 1728 * as it lists several tx power levels -acme 1729 */ 1730 wrqu->txpower.fixed = 0; 1731 wrqu->txpower.flags = IW_TXPOW_MWATT; 1732 } 1733 return rc; 1734 } 1735 1736 static int wl3501_get_retry(struct net_device *dev, 1737 struct iw_request_info *info, 1738 union iwreq_data *wrqu, char *extra) 1739 { 1740 u8 retry; /* size checked: it is u8 */ 1741 struct wl3501_card *this = netdev_priv(dev); 1742 int rc = wl3501_get_mib_value(this, 1743 WL3501_MIB_ATTR_LONG_RETRY_LIMIT, 1744 &retry, sizeof(retry)); 1745 if (rc) 1746 goto out; 1747 if (wrqu->retry.flags & IW_RETRY_LONG) { 1748 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 1749 goto set_value; 1750 } 1751 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT, 1752 &retry, sizeof(retry)); 1753 if (rc) 1754 goto out; 1755 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; 1756 set_value: 1757 wrqu->retry.value = retry; 1758 wrqu->retry.disabled = 0; 1759 out: 1760 return rc; 1761 } 1762 1763 static int wl3501_get_encode(struct net_device *dev, 1764 struct iw_request_info *info, 1765 union iwreq_data *wrqu, char *extra) 1766 { 1767 u8 implemented, restricted, keys[100], len_keys, tocopy; 1768 struct wl3501_card *this = netdev_priv(dev); 1769 int rc = wl3501_get_mib_value(this, 1770 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED, 1771 &implemented, sizeof(implemented)); 1772 if (rc) 1773 goto out; 1774 if (!implemented) { 1775 wrqu->encoding.flags = IW_ENCODE_DISABLED; 1776 goto out; 1777 } 1778 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED, 1779 &restricted, sizeof(restricted)); 1780 if (rc) 1781 goto out; 1782 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED : 1783 IW_ENCODE_OPEN; 1784 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN, 1785 &len_keys, sizeof(len_keys)); 1786 if (rc) 1787 goto out; 1788 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS, 1789 keys, len_keys); 1790 if (rc) 1791 goto out; 1792 tocopy = min_t(u16, len_keys, wrqu->encoding.length); 1793 tocopy = min_t(u8, tocopy, 100); 1794 wrqu->encoding.length = tocopy; 1795 memcpy(extra, keys, tocopy); 1796 out: 1797 return rc; 1798 } 1799 1800 static int wl3501_get_power(struct net_device *dev, 1801 struct iw_request_info *info, 1802 union iwreq_data *wrqu, char *extra) 1803 { 1804 u8 pwr_state; 1805 struct wl3501_card *this = netdev_priv(dev); 1806 int rc = wl3501_get_mib_value(this, 1807 WL3501_MIB_ATTR_CURRENT_PWR_STATE, 1808 &pwr_state, sizeof(pwr_state)); 1809 if (rc) 1810 goto out; 1811 wrqu->power.disabled = !pwr_state; 1812 wrqu->power.flags = IW_POWER_ON; 1813 out: 1814 return rc; 1815 } 1816 1817 static const iw_handler wl3501_handler[] = { 1818 IW_HANDLER(SIOCGIWNAME, wl3501_get_name), 1819 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq), 1820 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq), 1821 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode), 1822 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode), 1823 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens), 1824 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range), 1825 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 1826 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 1827 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 1828 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 1829 IW_HANDLER(SIOCSIWAP, wl3501_set_wap), 1830 IW_HANDLER(SIOCGIWAP, wl3501_get_wap), 1831 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan), 1832 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan), 1833 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid), 1834 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid), 1835 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick), 1836 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick), 1837 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate), 1838 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold), 1839 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold), 1840 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow), 1841 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry), 1842 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode), 1843 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power), 1844 }; 1845 1846 static const struct iw_handler_def wl3501_handler_def = { 1847 .num_standard = ARRAY_SIZE(wl3501_handler), 1848 .standard = (iw_handler *)wl3501_handler, 1849 .get_wireless_stats = wl3501_get_wireless_stats, 1850 }; 1851 1852 static const struct net_device_ops wl3501_netdev_ops = { 1853 .ndo_open = wl3501_open, 1854 .ndo_stop = wl3501_close, 1855 .ndo_start_xmit = wl3501_hard_start_xmit, 1856 .ndo_tx_timeout = wl3501_tx_timeout, 1857 .ndo_set_mac_address = eth_mac_addr, 1858 .ndo_validate_addr = eth_validate_addr, 1859 }; 1860 1861 static int wl3501_probe(struct pcmcia_device *p_dev) 1862 { 1863 struct net_device *dev; 1864 struct wl3501_card *this; 1865 1866 /* The io structure describes IO port mapping */ 1867 p_dev->resource[0]->end = 16; 1868 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8; 1869 1870 /* General socket configuration */ 1871 p_dev->config_flags = CONF_ENABLE_IRQ; 1872 p_dev->config_index = 1; 1873 1874 dev = alloc_etherdev(sizeof(struct wl3501_card)); 1875 if (!dev) 1876 goto out_link; 1877 1878 1879 dev->netdev_ops = &wl3501_netdev_ops; 1880 dev->watchdog_timeo = 5 * HZ; 1881 1882 this = netdev_priv(dev); 1883 this->wireless_data.spy_data = &this->spy_data; 1884 this->p_dev = p_dev; 1885 dev->wireless_data = &this->wireless_data; 1886 dev->wireless_handlers = &wl3501_handler_def; 1887 netif_stop_queue(dev); 1888 p_dev->priv = dev; 1889 1890 return wl3501_config(p_dev); 1891 out_link: 1892 return -ENOMEM; 1893 } 1894 1895 static int wl3501_config(struct pcmcia_device *link) 1896 { 1897 struct net_device *dev = link->priv; 1898 int i = 0, j, ret; 1899 struct wl3501_card *this; 1900 1901 /* Try allocating IO ports. This tries a few fixed addresses. If you 1902 * want, you can also read the card's config table to pick addresses -- 1903 * see the serial driver for an example. */ 1904 link->io_lines = 5; 1905 1906 for (j = 0x280; j < 0x400; j += 0x20) { 1907 /* The '^0x300' is so that we probe 0x300-0x3ff first, then 1908 * 0x200-0x2ff, and so on, because this seems safer */ 1909 link->resource[0]->start = j; 1910 link->resource[1]->start = link->resource[0]->start + 0x10; 1911 i = pcmcia_request_io(link); 1912 if (i == 0) 1913 break; 1914 } 1915 if (i != 0) 1916 goto failed; 1917 1918 /* Now allocate an interrupt line. Note that this does not actually 1919 * assign a handler to the interrupt. */ 1920 1921 ret = pcmcia_request_irq(link, wl3501_interrupt); 1922 if (ret) 1923 goto failed; 1924 1925 ret = pcmcia_enable_device(link); 1926 if (ret) 1927 goto failed; 1928 1929 dev->irq = link->irq; 1930 dev->base_addr = link->resource[0]->start; 1931 SET_NETDEV_DEV(dev, &link->dev); 1932 if (register_netdev(dev)) { 1933 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n"); 1934 goto failed; 1935 } 1936 1937 this = netdev_priv(dev); 1938 1939 this->base_addr = dev->base_addr; 1940 1941 if (!wl3501_get_flash_mac_addr(this)) { 1942 printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n", 1943 dev->name); 1944 unregister_netdev(dev); 1945 goto failed; 1946 } 1947 1948 eth_hw_addr_set(dev, this->mac_addr); 1949 1950 /* print probe information */ 1951 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, " 1952 "MAC addr in flash ROM:%pM\n", 1953 dev->name, this->base_addr, (int)dev->irq, 1954 dev->dev_addr); 1955 /* 1956 * Initialize card parameters - added by jss 1957 */ 1958 this->net_type = IW_MODE_INFRA; 1959 this->bss_cnt = 0; 1960 this->join_sta_bss = 0; 1961 this->adhoc_times = 0; 1962 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, 1963 "ANY", 3); 1964 this->card_name[0] = '\0'; 1965 this->firmware_date[0] = '\0'; 1966 this->rssi = 255; 1967 this->chan = iw_default_channel(this->reg_domain); 1968 strscpy(this->nick, "Planet WL3501", sizeof(this->nick)); 1969 spin_lock_init(&this->lock); 1970 init_waitqueue_head(&this->wait); 1971 netif_start_queue(dev); 1972 return 0; 1973 1974 failed: 1975 wl3501_release(link); 1976 return -ENODEV; 1977 } 1978 1979 static void wl3501_release(struct pcmcia_device *link) 1980 { 1981 pcmcia_disable_device(link); 1982 } 1983 1984 static int wl3501_suspend(struct pcmcia_device *link) 1985 { 1986 struct net_device *dev = link->priv; 1987 1988 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND); 1989 if (link->open) 1990 netif_device_detach(dev); 1991 1992 return 0; 1993 } 1994 1995 static int wl3501_resume(struct pcmcia_device *link) 1996 { 1997 struct net_device *dev = link->priv; 1998 1999 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME); 2000 if (link->open) { 2001 wl3501_reset(dev); 2002 netif_device_attach(dev); 2003 } 2004 2005 return 0; 2006 } 2007 2008 2009 static const struct pcmcia_device_id wl3501_ids[] = { 2010 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001), 2011 PCMCIA_DEVICE_NULL 2012 }; 2013 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids); 2014 2015 static struct pcmcia_driver wl3501_driver = { 2016 .owner = THIS_MODULE, 2017 .name = "wl3501_cs", 2018 .probe = wl3501_probe, 2019 .remove = wl3501_detach, 2020 .id_table = wl3501_ids, 2021 .suspend = wl3501_suspend, 2022 .resume = wl3501_resume, 2023 }; 2024 module_pcmcia_driver(wl3501_driver); 2025 2026 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, " 2027 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>," 2028 "Gustavo Niemeyer <niemeyer@conectiva.com>"); 2029 MODULE_DESCRIPTION("Planet wl3501 wireless driver"); 2030 MODULE_LICENSE("GPL"); 2031