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/ethtool.h> 33#include <linux/init.h> 34#include <linux/interrupt.h> 35#include <linux/in.h> 36#include <linux/kernel.h> 37#include <linux/module.h> 38#include <linux/fcntl.h> 39#include <linux/if_arp.h> 40#include <linux/ioport.h> 41#include <linux/netdevice.h> 42#include <linux/etherdevice.h> 43#include <linux/skbuff.h> 44#include <linux/slab.h> 45#include <linux/string.h> 46#include <linux/wireless.h> 47 48#include <net/iw_handler.h> 49 50#include <pcmcia/cs_types.h> 51#include <pcmcia/cs.h> 52#include <pcmcia/cistpl.h> 53#include <pcmcia/cisreg.h> 54#include <pcmcia/ds.h> 55 56#include <asm/io.h> 57#include <asm/uaccess.h> 58#include <asm/system.h> 59 60#include "wl3501.h" 61 62#ifndef __i386__ 63#define slow_down_io() 64#endif 65 66/* For rough constant delay */ 67#define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); } 68 69/* 70 * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If you do not 71 * define PCMCIA_DEBUG at all, all the debug code will be left out. If you 72 * compile with PCMCIA_DEBUG=0, the debug code will be present but disabled -- 73 * but it can then be enabled for specific modules at load time with a 74 * 'pc_debug=#' option to insmod. 75 */ 76#define PCMCIA_DEBUG 0 77#ifdef PCMCIA_DEBUG 78static int pc_debug = PCMCIA_DEBUG; 79module_param(pc_debug, int, 0); 80#define dprintk(n, format, args...) \ 81 { if (pc_debug > (n)) \ 82 printk(KERN_INFO "%s: " format "\n", __FUNCTION__ , ##args); } 83#else 84#define dprintk(n, format, args...) 85#endif 86 87#define wl3501_outb(a, b) { outb(a, b); slow_down_io(); } 88#define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); } 89#define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); } 90 91#define WL3501_RELEASE_TIMEOUT (25 * HZ) 92#define WL3501_MAX_ADHOC_TRIES 16 93 94#define WL3501_RESUME 0 95#define WL3501_SUSPEND 1 96 97/* 98 * The event() function is this driver's Card Services event handler. It will 99 * be called by Card Services when an appropriate card status event is 100 * received. The config() and release() entry points are used to configure or 101 * release a socket, in response to card insertion and ejection events. They 102 * are invoked from the wl24 event handler. 103 */ 104static int wl3501_config(struct pcmcia_device *link); 105static void wl3501_release(struct pcmcia_device *link); 106 107/* 108 * The dev_info variable is the "key" that is used to match up this 109 * device driver with appropriate cards, through the card configuration 110 * database. 111 */ 112static dev_info_t wl3501_dev_info = "wl3501_cs"; 113 114static int wl3501_chan2freq[] = { 115 [0] = 2412, [1] = 2417, [2] = 2422, [3] = 2427, [4] = 2432, 116 [5] = 2437, [6] = 2442, [7] = 2447, [8] = 2452, [9] = 2457, 117 [10] = 2462, [11] = 2467, [12] = 2472, [13] = 2477, 118}; 119 120static const struct { 121 int reg_domain; 122 int min, max, deflt; 123} iw_channel_table[] = { 124 { 125 .reg_domain = IW_REG_DOMAIN_FCC, 126 .min = 1, 127 .max = 11, 128 .deflt = 1, 129 }, 130 { 131 .reg_domain = IW_REG_DOMAIN_DOC, 132 .min = 1, 133 .max = 11, 134 .deflt = 1, 135 }, 136 { 137 .reg_domain = IW_REG_DOMAIN_ETSI, 138 .min = 1, 139 .max = 13, 140 .deflt = 1, 141 }, 142 { 143 .reg_domain = IW_REG_DOMAIN_SPAIN, 144 .min = 10, 145 .max = 11, 146 .deflt = 10, 147 }, 148 { 149 .reg_domain = IW_REG_DOMAIN_FRANCE, 150 .min = 10, 151 .max = 13, 152 .deflt = 10, 153 }, 154 { 155 .reg_domain = IW_REG_DOMAIN_MKK, 156 .min = 14, 157 .max = 14, 158 .deflt = 14, 159 }, 160 { 161 .reg_domain = IW_REG_DOMAIN_MKK1, 162 .min = 1, 163 .max = 14, 164 .deflt = 1, 165 }, 166 { 167 .reg_domain = IW_REG_DOMAIN_ISRAEL, 168 .min = 3, 169 .max = 9, 170 .deflt = 9, 171 }, 172}; 173 174/** 175 * iw_valid_channel - validate channel in regulatory domain 176 * @reg_comain - regulatory domain 177 * @channel - channel to validate 178 * 179 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid. 180 */ 181static int iw_valid_channel(int reg_domain, int channel) 182{ 183 int i, rc = 0; 184 185 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) 186 if (reg_domain == iw_channel_table[i].reg_domain) { 187 rc = channel >= iw_channel_table[i].min && 188 channel <= iw_channel_table[i].max; 189 break; 190 } 191 return rc; 192} 193 194/** 195 * iw_default_channel - get default channel for a regulatory domain 196 * @reg_comain - regulatory domain 197 * 198 * Returns the default channel for a regulatory domain 199 */ 200static int iw_default_channel(int reg_domain) 201{ 202 int i, rc = 1; 203 204 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) 205 if (reg_domain == iw_channel_table[i].reg_domain) { 206 rc = iw_channel_table[i].deflt; 207 break; 208 } 209 return rc; 210} 211 212static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id, 213 struct iw_mgmt_info_element *el, 214 void *value, int len) 215{ 216 el->id = id; 217 el->len = len; 218 memcpy(el->data, value, len); 219} 220 221static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to, 222 struct iw_mgmt_info_element *from) 223{ 224 iw_set_mgmt_info_element(from->id, to, from->data, from->len); 225} 226 227static inline void wl3501_switch_page(struct wl3501_card *this, u8 page) 228{ 229 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS); 230} 231 232/* 233 * Get Ethernet MAC addresss. 234 * 235 * WARNING: We switch to FPAGE0 and switc back again. 236 * Making sure there is no other WL function beening called by ISR. 237 */ 238static int wl3501_get_flash_mac_addr(struct wl3501_card *this) 239{ 240 int base_addr = this->base_addr; 241 242 /* get MAC addr */ 243 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */ 244 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */ 245 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */ 246 247 /* wait for reading EEPROM */ 248 WL3501_NOPLOOP(100); 249 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA); 250 WL3501_NOPLOOP(100); 251 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA); 252 WL3501_NOPLOOP(100); 253 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA); 254 WL3501_NOPLOOP(100); 255 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA); 256 WL3501_NOPLOOP(100); 257 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA); 258 WL3501_NOPLOOP(100); 259 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA); 260 WL3501_NOPLOOP(100); 261 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA); 262 WL3501_NOPLOOP(100); 263 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS); 264 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL); 265 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); 266 WL3501_NOPLOOP(100); 267 this->version[0] = inb(base_addr + WL3501_NIC_IODPA); 268 WL3501_NOPLOOP(100); 269 this->version[1] = inb(base_addr + WL3501_NIC_IODPA); 270 /* switch to SRAM Page 0 (for safety) */ 271 wl3501_switch_page(this, WL3501_BSS_SPAGE0); 272 273 /* The MAC addr should be 00:60:... */ 274 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60; 275} 276 277/** 278 * wl3501_set_to_wla - Move 'size' bytes from PC to card 279 * @dest: Card addressing space 280 * @src: PC addressing space 281 * @size: Bytes to move 282 * 283 * Move 'size' bytes from PC to card. (Shouldn't be interrupted) 284 */ 285static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, 286 int size) 287{ 288 /* switch to SRAM Page 0 */ 289 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 : 290 WL3501_BSS_SPAGE0); 291 /* set LMAL and LMAH */ 292 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL); 293 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH); 294 295 /* rep out to Port A */ 296 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size); 297} 298 299/** 300 * wl3501_get_from_wla - Move 'size' bytes from card to PC 301 * @src: Card addressing space 302 * @dest: PC addressing space 303 * @size: Bytes to move 304 * 305 * Move 'size' bytes from card to PC. (Shouldn't be interrupted) 306 */ 307static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, 308 int size) 309{ 310 /* switch to SRAM Page 0 */ 311 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 : 312 WL3501_BSS_SPAGE0); 313 /* set LMAL and LMAH */ 314 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL); 315 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH); 316 317 /* rep get from Port A */ 318 insb(this->base_addr + WL3501_NIC_IODPA, dest, size); 319} 320 321/* 322 * Get/Allocate a free Tx Data Buffer 323 * 324 * *--------------*-----------------*----------------------------------* 325 * | PLCP | MAC Header | DST SRC Data ... | 326 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) | 327 * *--------------*-----------------*----------------------------------* 328 * \ \- IEEE 802.11 -/ \-------------- len --------------/ 329 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/ 330 * 331 * Return = Postion in Card 332 */ 333static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len) 334{ 335 u16 next, blk_cnt = 0, zero = 0; 336 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len; 337 u16 ret = 0; 338 339 if (full_len > this->tx_buffer_cnt * 254) 340 goto out; 341 ret = this->tx_buffer_head; 342 while (full_len) { 343 if (full_len < 254) 344 full_len = 0; 345 else 346 full_len -= 254; 347 wl3501_get_from_wla(this, this->tx_buffer_head, &next, 348 sizeof(next)); 349 if (!full_len) 350 wl3501_set_to_wla(this, this->tx_buffer_head, &zero, 351 sizeof(zero)); 352 this->tx_buffer_head = next; 353 blk_cnt++; 354 /* if buffer is not enough */ 355 if (!next && full_len) { 356 this->tx_buffer_head = ret; 357 ret = 0; 358 goto out; 359 } 360 } 361 this->tx_buffer_cnt -= blk_cnt; 362out: 363 return ret; 364} 365 366/* 367 * Free an allocated Tx Buffer. ptr must be correct position. 368 */ 369static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr) 370{ 371 /* check if all space is not free */ 372 if (!this->tx_buffer_head) 373 this->tx_buffer_head = ptr; 374 else 375 wl3501_set_to_wla(this, this->tx_buffer_tail, 376 &ptr, sizeof(ptr)); 377 while (ptr) { 378 u16 next; 379 380 this->tx_buffer_cnt++; 381 wl3501_get_from_wla(this, ptr, &next, sizeof(next)); 382 this->tx_buffer_tail = ptr; 383 ptr = next; 384 } 385} 386 387static int wl3501_esbq_req_test(struct wl3501_card *this) 388{ 389 u8 tmp; 390 391 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp)); 392 return tmp & 0x80; 393} 394 395static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr) 396{ 397 u16 tmp = 0; 398 399 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2); 400 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp)); 401 this->esbq_req_head += 4; 402 if (this->esbq_req_head >= this->esbq_req_end) 403 this->esbq_req_head = this->esbq_req_start; 404} 405 406static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size) 407{ 408 int rc = -EIO; 409 410 if (wl3501_esbq_req_test(this)) { 411 u16 ptr = wl3501_get_tx_buffer(this, sig_size); 412 if (ptr) { 413 wl3501_set_to_wla(this, ptr, sig, sig_size); 414 wl3501_esbq_req(this, &ptr); 415 rc = 0; 416 } 417 } 418 return rc; 419} 420 421static int wl3501_get_mib_value(struct wl3501_card *this, u8 index, 422 void *bf, int size) 423{ 424 struct wl3501_get_req sig = { 425 .sig_id = WL3501_SIG_GET_REQ, 426 .mib_attrib = index, 427 }; 428 unsigned long flags; 429 int rc = -EIO; 430 431 spin_lock_irqsave(&this->lock, flags); 432 if (wl3501_esbq_req_test(this)) { 433 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); 434 if (ptr) { 435 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); 436 wl3501_esbq_req(this, &ptr); 437 this->sig_get_confirm.mib_status = 255; 438 spin_unlock_irqrestore(&this->lock, flags); 439 rc = wait_event_interruptible(this->wait, 440 this->sig_get_confirm.mib_status != 255); 441 if (!rc) 442 memcpy(bf, this->sig_get_confirm.mib_value, 443 size); 444 goto out; 445 } 446 } 447 spin_unlock_irqrestore(&this->lock, flags); 448out: 449 return rc; 450} 451 452static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend) 453{ 454 struct wl3501_pwr_mgmt_req sig = { 455 .sig_id = WL3501_SIG_PWR_MGMT_REQ, 456 .pwr_save = suspend, 457 .wake_up = !suspend, 458 .receive_dtims = 10, 459 }; 460 unsigned long flags; 461 int rc = -EIO; 462 463 spin_lock_irqsave(&this->lock, flags); 464 if (wl3501_esbq_req_test(this)) { 465 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); 466 if (ptr) { 467 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); 468 wl3501_esbq_req(this, &ptr); 469 this->sig_pwr_mgmt_confirm.status = 255; 470 spin_unlock_irqrestore(&this->lock, flags); 471 rc = wait_event_interruptible(this->wait, 472 this->sig_pwr_mgmt_confirm.status != 255); 473 printk(KERN_INFO "%s: %s status=%d\n", __FUNCTION__, 474 suspend ? "suspend" : "resume", 475 this->sig_pwr_mgmt_confirm.status); 476 goto out; 477 } 478 } 479 spin_unlock_irqrestore(&this->lock, flags); 480out: 481 return rc; 482} 483 484/** 485 * wl3501_send_pkt - Send a packet. 486 * @this - card 487 * 488 * Send a packet. 489 * 490 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr, 491 * data[6] - data[11] is Src MAC Addr) 492 * Ref: IEEE 802.11 493 */ 494static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len) 495{ 496 u16 bf, sig_bf, next, tmplen, pktlen; 497 struct wl3501_md_req sig = { 498 .sig_id = WL3501_SIG_MD_REQ, 499 }; 500 u8 *pdata = (char *)data; 501 int rc = -EIO; 502 503 if (wl3501_esbq_req_test(this)) { 504 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig)); 505 rc = -ENOMEM; 506 if (!sig_bf) /* No free buffer available */ 507 goto out; 508 bf = wl3501_get_tx_buffer(this, len + 26 + 24); 509 if (!bf) { 510 /* No free buffer available */ 511 wl3501_free_tx_buffer(this, sig_bf); 512 goto out; 513 } 514 rc = 0; 515 memcpy(&sig.daddr[0], pdata, 12); 516 pktlen = len - 12; 517 pdata += 12; 518 sig.data = bf; 519 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) { 520 u8 addr4[ETH_ALEN] = { 521 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00, 522 }; 523 524 wl3501_set_to_wla(this, bf + 2 + 525 offsetof(struct wl3501_tx_hdr, addr4), 526 addr4, sizeof(addr4)); 527 sig.size = pktlen + 24 + 4 + 6; 528 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) { 529 tmplen = 254 - sizeof(struct wl3501_tx_hdr); 530 pktlen -= tmplen; 531 } else { 532 tmplen = pktlen; 533 pktlen = 0; 534 } 535 wl3501_set_to_wla(this, 536 bf + 2 + sizeof(struct wl3501_tx_hdr), 537 pdata, tmplen); 538 pdata += tmplen; 539 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 540 bf = next; 541 } else { 542 sig.size = pktlen + 24 + 4 - 2; 543 pdata += 2; 544 pktlen -= 2; 545 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) { 546 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6; 547 pktlen -= tmplen; 548 } else { 549 tmplen = pktlen; 550 pktlen = 0; 551 } 552 wl3501_set_to_wla(this, bf + 2 + 553 offsetof(struct wl3501_tx_hdr, addr4), 554 pdata, tmplen); 555 pdata += tmplen; 556 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 557 bf = next; 558 } 559 while (pktlen > 0) { 560 if (pktlen > 254) { 561 tmplen = 254; 562 pktlen -= 254; 563 } else { 564 tmplen = pktlen; 565 pktlen = 0; 566 } 567 wl3501_set_to_wla(this, bf + 2, pdata, tmplen); 568 pdata += tmplen; 569 wl3501_get_from_wla(this, bf, &next, sizeof(next)); 570 bf = next; 571 } 572 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig)); 573 wl3501_esbq_req(this, &sig_bf); 574 } 575out: 576 return rc; 577} 578 579static int wl3501_mgmt_resync(struct wl3501_card *this) 580{ 581 struct wl3501_resync_req sig = { 582 .sig_id = WL3501_SIG_RESYNC_REQ, 583 }; 584 585 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 586} 587 588static inline int wl3501_fw_bss_type(struct wl3501_card *this) 589{ 590 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA : 591 WL3501_NET_TYPE_ADHOC; 592} 593 594static inline int wl3501_fw_cap_info(struct wl3501_card *this) 595{ 596 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS : 597 WL3501_MGMT_CAPABILITY_IBSS; 598} 599 600static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time) 601{ 602 struct wl3501_scan_req sig = { 603 .sig_id = WL3501_SIG_SCAN_REQ, 604 .scan_type = WL3501_SCAN_TYPE_ACTIVE, 605 .probe_delay = 0x10, 606 .min_chan_time = chan_time, 607 .max_chan_time = chan_time, 608 .bss_type = wl3501_fw_bss_type(this), 609 }; 610 611 this->bss_cnt = this->join_sta_bss = 0; 612 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 613} 614 615static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas) 616{ 617 struct wl3501_join_req sig = { 618 .sig_id = WL3501_SIG_JOIN_REQ, 619 .timeout = 10, 620 .ds_pset = { 621 .el = { 622 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, 623 .len = 1, 624 }, 625 .chan = this->chan, 626 }, 627 }; 628 629 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72); 630 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 631} 632 633static int wl3501_mgmt_start(struct wl3501_card *this) 634{ 635 struct wl3501_start_req sig = { 636 .sig_id = WL3501_SIG_START_REQ, 637 .beacon_period = 400, 638 .dtim_period = 1, 639 .ds_pset = { 640 .el = { 641 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, 642 .len = 1, 643 }, 644 .chan = this->chan, 645 }, 646 .bss_basic_rset = { 647 .el = { 648 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, 649 .len = 2, 650 }, 651 .data_rate_labels = { 652 [0] = IW_MGMT_RATE_LABEL_MANDATORY | 653 IW_MGMT_RATE_LABEL_1MBIT, 654 [1] = IW_MGMT_RATE_LABEL_MANDATORY | 655 IW_MGMT_RATE_LABEL_2MBIT, 656 }, 657 }, 658 .operational_rset = { 659 .el = { 660 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, 661 .len = 2, 662 }, 663 .data_rate_labels = { 664 [0] = IW_MGMT_RATE_LABEL_MANDATORY | 665 IW_MGMT_RATE_LABEL_1MBIT, 666 [1] = IW_MGMT_RATE_LABEL_MANDATORY | 667 IW_MGMT_RATE_LABEL_2MBIT, 668 }, 669 }, 670 .ibss_pset = { 671 .el = { 672 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET, 673 .len = 2, 674 }, 675 .atim_window = 10, 676 }, 677 .bss_type = wl3501_fw_bss_type(this), 678 .cap_info = wl3501_fw_cap_info(this), 679 }; 680 681 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el); 682 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el); 683 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 684} 685 686static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr) 687{ 688 u16 i = 0; 689 int matchflag = 0; 690 struct wl3501_scan_confirm sig; 691 692 dprintk(3, "entry"); 693 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 694 if (sig.status == WL3501_STATUS_SUCCESS) { 695 dprintk(3, "success"); 696 if ((this->net_type == IW_MODE_INFRA && 697 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) || 698 (this->net_type == IW_MODE_ADHOC && 699 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) || 700 this->net_type == IW_MODE_AUTO) { 701 if (!this->essid.el.len) 702 matchflag = 1; 703 else if (this->essid.el.len == 3 && 704 !memcmp(this->essid.essid, "ANY", 3)) 705 matchflag = 1; 706 else if (this->essid.el.len != sig.ssid.el.len) 707 matchflag = 0; 708 else if (memcmp(this->essid.essid, sig.ssid.essid, 709 this->essid.el.len)) 710 matchflag = 0; 711 else 712 matchflag = 1; 713 if (matchflag) { 714 for (i = 0; i < this->bss_cnt; i++) { 715 if (!memcmp(this->bss_set[i].bssid, 716 sig.bssid, ETH_ALEN)) { 717 matchflag = 0; 718 break; 719 } 720 } 721 } 722 if (matchflag && (i < 20)) { 723 memcpy(&this->bss_set[i].beacon_period, 724 &sig.beacon_period, 73); 725 this->bss_cnt++; 726 this->rssi = sig.rssi; 727 } 728 } 729 } else if (sig.status == WL3501_STATUS_TIMEOUT) { 730 dprintk(3, "timeout"); 731 this->join_sta_bss = 0; 732 for (i = this->join_sta_bss; i < this->bss_cnt; i++) 733 if (!wl3501_mgmt_join(this, i)) 734 break; 735 this->join_sta_bss = i; 736 if (this->join_sta_bss == this->bss_cnt) { 737 if (this->net_type == IW_MODE_INFRA) 738 wl3501_mgmt_scan(this, 100); 739 else { 740 this->adhoc_times++; 741 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) 742 wl3501_mgmt_start(this); 743 else 744 wl3501_mgmt_scan(this, 100); 745 } 746 } 747 } 748} 749 750/** 751 * wl3501_block_interrupt - Mask interrupt from SUTRO 752 * @this - card 753 * 754 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST) 755 * Return: 1 if interrupt is originally enabled 756 */ 757static int wl3501_block_interrupt(struct wl3501_card *this) 758{ 759 u8 old = inb(this->base_addr + WL3501_NIC_GCR); 760 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC | 761 WL3501_GCR_ENECINT)); 762 763 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); 764 return old & WL3501_GCR_ENECINT; 765} 766 767/** 768 * wl3501_unblock_interrupt - Enable interrupt from SUTRO 769 * @this - card 770 * 771 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST) 772 * Return: 1 if interrupt is originally enabled 773 */ 774static int wl3501_unblock_interrupt(struct wl3501_card *this) 775{ 776 u8 old = inb(this->base_addr + WL3501_NIC_GCR); 777 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) | 778 WL3501_GCR_ENECINT; 779 780 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); 781 return old & WL3501_GCR_ENECINT; 782} 783 784/** 785 * wl3501_receive - Receive data from Receive Queue. 786 * 787 * Receive data from Receive Queue. 788 * 789 * @this: card 790 * @bf: address of host 791 * @size: size of buffer. 792 */ 793static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size) 794{ 795 u16 next_addr, next_addr1; 796 u8 *data = bf + 12; 797 798 size -= 12; 799 wl3501_get_from_wla(this, this->start_seg + 2, 800 &next_addr, sizeof(next_addr)); 801 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) { 802 wl3501_get_from_wla(this, 803 this->start_seg + 804 sizeof(struct wl3501_rx_hdr), data, 805 WL3501_BLKSZ - 806 sizeof(struct wl3501_rx_hdr)); 807 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); 808 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); 809 } else { 810 wl3501_get_from_wla(this, 811 this->start_seg + 812 sizeof(struct wl3501_rx_hdr), 813 data, size); 814 size = 0; 815 } 816 while (size > 0) { 817 if (size > WL3501_BLKSZ - 5) { 818 wl3501_get_from_wla(this, next_addr + 5, data, 819 WL3501_BLKSZ - 5); 820 size -= WL3501_BLKSZ - 5; 821 data += WL3501_BLKSZ - 5; 822 wl3501_get_from_wla(this, next_addr + 2, &next_addr1, 823 sizeof(next_addr1)); 824 next_addr = next_addr1; 825 } else { 826 wl3501_get_from_wla(this, next_addr + 5, data, size); 827 size = 0; 828 } 829 } 830 return 0; 831} 832 833static void wl3501_esbq_req_free(struct wl3501_card *this) 834{ 835 u8 tmp; 836 u16 addr; 837 838 if (this->esbq_req_head == this->esbq_req_tail) 839 goto out; 840 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp)); 841 if (!(tmp & 0x80)) 842 goto out; 843 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr)); 844 wl3501_free_tx_buffer(this, addr); 845 this->esbq_req_tail += 4; 846 if (this->esbq_req_tail >= this->esbq_req_end) 847 this->esbq_req_tail = this->esbq_req_start; 848out: 849 return; 850} 851 852static int wl3501_esbq_confirm(struct wl3501_card *this) 853{ 854 u8 tmp; 855 856 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); 857 return tmp & 0x80; 858} 859 860static void wl3501_online(struct net_device *dev) 861{ 862 struct wl3501_card *this = dev->priv; 863 864 printk(KERN_INFO "%s: Wireless LAN online. BSSID: " 865 "%02X %02X %02X %02X %02X %02X\n", dev->name, 866 this->bssid[0], this->bssid[1], this->bssid[2], 867 this->bssid[3], this->bssid[4], this->bssid[5]); 868 netif_wake_queue(dev); 869} 870 871static void wl3501_esbq_confirm_done(struct wl3501_card *this) 872{ 873 u8 tmp = 0; 874 875 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); 876 this->esbq_confirm += 4; 877 if (this->esbq_confirm >= this->esbq_confirm_end) 878 this->esbq_confirm = this->esbq_confirm_start; 879} 880 881static int wl3501_mgmt_auth(struct wl3501_card *this) 882{ 883 struct wl3501_auth_req sig = { 884 .sig_id = WL3501_SIG_AUTH_REQ, 885 .type = WL3501_SYS_TYPE_OPEN, 886 .timeout = 1000, 887 }; 888 889 dprintk(3, "entry"); 890 memcpy(sig.mac_addr, this->bssid, ETH_ALEN); 891 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 892} 893 894static int wl3501_mgmt_association(struct wl3501_card *this) 895{ 896 struct wl3501_assoc_req sig = { 897 .sig_id = WL3501_SIG_ASSOC_REQ, 898 .timeout = 1000, 899 .listen_interval = 5, 900 .cap_info = this->cap_info, 901 }; 902 903 dprintk(3, "entry"); 904 memcpy(sig.mac_addr, this->bssid, ETH_ALEN); 905 return wl3501_esbq_exec(this, &sig, sizeof(sig)); 906} 907 908static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr) 909{ 910 struct wl3501_card *this = dev->priv; 911 struct wl3501_join_confirm sig; 912 913 dprintk(3, "entry"); 914 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 915 if (sig.status == WL3501_STATUS_SUCCESS) { 916 if (this->net_type == IW_MODE_INFRA) { 917 if (this->join_sta_bss < this->bss_cnt) { 918 const int i = this->join_sta_bss; 919 memcpy(this->bssid, 920 this->bss_set[i].bssid, ETH_ALEN); 921 this->chan = this->bss_set[i].ds_pset.chan; 922 iw_copy_mgmt_info_element(&this->keep_essid.el, 923 &this->bss_set[i].ssid.el); 924 wl3501_mgmt_auth(this); 925 } 926 } else { 927 const int i = this->join_sta_bss; 928 929 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN); 930 this->chan = this->bss_set[i].ds_pset.chan; 931 iw_copy_mgmt_info_element(&this->keep_essid.el, 932 &this->bss_set[i].ssid.el); 933 wl3501_online(dev); 934 } 935 } else { 936 int i; 937 this->join_sta_bss++; 938 for (i = this->join_sta_bss; i < this->bss_cnt; i++) 939 if (!wl3501_mgmt_join(this, i)) 940 break; 941 this->join_sta_bss = i; 942 if (this->join_sta_bss == this->bss_cnt) { 943 if (this->net_type == IW_MODE_INFRA) 944 wl3501_mgmt_scan(this, 100); 945 else { 946 this->adhoc_times++; 947 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) 948 wl3501_mgmt_start(this); 949 else 950 wl3501_mgmt_scan(this, 100); 951 } 952 } 953 } 954} 955 956static inline void wl3501_alarm_interrupt(struct net_device *dev, 957 struct wl3501_card *this) 958{ 959 if (this->net_type == IW_MODE_INFRA) { 960 printk(KERN_INFO "Wireless LAN offline\n"); 961 netif_stop_queue(dev); 962 wl3501_mgmt_resync(this); 963 } 964} 965 966static inline void wl3501_md_confirm_interrupt(struct net_device *dev, 967 struct wl3501_card *this, 968 u16 addr) 969{ 970 struct wl3501_md_confirm sig; 971 972 dprintk(3, "entry"); 973 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 974 wl3501_free_tx_buffer(this, sig.data); 975 if (netif_queue_stopped(dev)) 976 netif_wake_queue(dev); 977} 978 979static inline void wl3501_md_ind_interrupt(struct net_device *dev, 980 struct wl3501_card *this, u16 addr) 981{ 982 struct wl3501_md_ind sig; 983 struct sk_buff *skb; 984 u8 rssi, addr4[ETH_ALEN]; 985 u16 pkt_len; 986 987 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 988 this->start_seg = sig.data; 989 wl3501_get_from_wla(this, 990 sig.data + offsetof(struct wl3501_rx_hdr, rssi), 991 &rssi, sizeof(rssi)); 992 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255; 993 994 wl3501_get_from_wla(this, 995 sig.data + 996 offsetof(struct wl3501_rx_hdr, addr4), 997 &addr4, sizeof(addr4)); 998 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA && 999 addr4[2] == 0x03 && addr4[4] == 0x00)) { 1000 printk(KERN_INFO "Insupported packet type!\n"); 1001 return; 1002 } 1003 pkt_len = sig.size + 12 - 24 - 4 - 6; 1004 1005 skb = dev_alloc_skb(pkt_len + 5); 1006 1007 if (!skb) { 1008 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n", 1009 dev->name, pkt_len); 1010 this->stats.rx_dropped++; 1011 } else { 1012 skb->dev = dev; 1013 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */ 1014 eth_copy_and_sum(skb, (unsigned char *)&sig.daddr, 12, 0); 1015 wl3501_receive(this, skb->data, pkt_len); 1016 skb_put(skb, pkt_len); 1017 skb->protocol = eth_type_trans(skb, dev); 1018 dev->last_rx = jiffies; 1019 this->stats.rx_packets++; 1020 this->stats.rx_bytes += skb->len; 1021 netif_rx(skb); 1022 } 1023} 1024 1025static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this, 1026 u16 addr, void *sig, int size) 1027{ 1028 dprintk(3, "entry"); 1029 wl3501_get_from_wla(this, addr, &this->sig_get_confirm, 1030 sizeof(this->sig_get_confirm)); 1031 wake_up(&this->wait); 1032} 1033 1034static inline void wl3501_start_confirm_interrupt(struct net_device *dev, 1035 struct wl3501_card *this, 1036 u16 addr) 1037{ 1038 struct wl3501_start_confirm sig; 1039 1040 dprintk(3, "entry"); 1041 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1042 if (sig.status == WL3501_STATUS_SUCCESS) 1043 netif_wake_queue(dev); 1044} 1045 1046static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev, 1047 u16 addr) 1048{ 1049 struct wl3501_card *this = dev->priv; 1050 struct wl3501_assoc_confirm sig; 1051 1052 dprintk(3, "entry"); 1053 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1054 1055 if (sig.status == WL3501_STATUS_SUCCESS) 1056 wl3501_online(dev); 1057} 1058 1059static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this, 1060 u16 addr) 1061{ 1062 struct wl3501_auth_confirm sig; 1063 1064 dprintk(3, "entry"); 1065 wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); 1066 1067 if (sig.status == WL3501_STATUS_SUCCESS) 1068 wl3501_mgmt_association(this); 1069 else 1070 wl3501_mgmt_resync(this); 1071} 1072 1073static inline void wl3501_rx_interrupt(struct net_device *dev) 1074{ 1075 int morepkts; 1076 u16 addr; 1077 u8 sig_id; 1078 struct wl3501_card *this = dev->priv; 1079 1080 dprintk(3, "entry"); 1081loop: 1082 morepkts = 0; 1083 if (!wl3501_esbq_confirm(this)) 1084 goto free; 1085 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr)); 1086 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id)); 1087 1088 switch (sig_id) { 1089 case WL3501_SIG_DEAUTH_IND: 1090 case WL3501_SIG_DISASSOC_IND: 1091 case WL3501_SIG_ALARM: 1092 wl3501_alarm_interrupt(dev, this); 1093 break; 1094 case WL3501_SIG_MD_CONFIRM: 1095 wl3501_md_confirm_interrupt(dev, this, addr); 1096 break; 1097 case WL3501_SIG_MD_IND: 1098 wl3501_md_ind_interrupt(dev, this, addr); 1099 break; 1100 case WL3501_SIG_GET_CONFIRM: 1101 wl3501_get_confirm_interrupt(this, addr, 1102 &this->sig_get_confirm, 1103 sizeof(this->sig_get_confirm)); 1104 break; 1105 case WL3501_SIG_PWR_MGMT_CONFIRM: 1106 wl3501_get_confirm_interrupt(this, addr, 1107 &this->sig_pwr_mgmt_confirm, 1108 sizeof(this->sig_pwr_mgmt_confirm)); 1109 break; 1110 case WL3501_SIG_START_CONFIRM: 1111 wl3501_start_confirm_interrupt(dev, this, addr); 1112 break; 1113 case WL3501_SIG_SCAN_CONFIRM: 1114 wl3501_mgmt_scan_confirm(this, addr); 1115 break; 1116 case WL3501_SIG_JOIN_CONFIRM: 1117 wl3501_mgmt_join_confirm(dev, addr); 1118 break; 1119 case WL3501_SIG_ASSOC_CONFIRM: 1120 wl3501_assoc_confirm_interrupt(dev, addr); 1121 break; 1122 case WL3501_SIG_AUTH_CONFIRM: 1123 wl3501_auth_confirm_interrupt(this, addr); 1124 break; 1125 case WL3501_SIG_RESYNC_CONFIRM: 1126 wl3501_mgmt_resync(this); 1127 break; 1128 } 1129 wl3501_esbq_confirm_done(this); 1130 morepkts = 1; 1131 /* free request if necessary */ 1132free: 1133 wl3501_esbq_req_free(this); 1134 if (morepkts) 1135 goto loop; 1136} 1137 1138static inline void wl3501_ack_interrupt(struct wl3501_card *this) 1139{ 1140 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR); 1141} 1142 1143/** 1144 * wl3501_interrupt - Hardware interrupt from card. 1145 * @irq - Interrupt number 1146 * @dev_id - net_device 1147 * 1148 * We must acknowledge the interrupt as soon as possible, and block the 1149 * interrupt from the same card immediately to prevent re-entry. 1150 * 1151 * Before accessing the Control_Status_Block, we must lock SUTRO first. 1152 * On the other hand, to prevent SUTRO from malfunctioning, we must 1153 * unlock the SUTRO as soon as possible. 1154 */ 1155static irqreturn_t wl3501_interrupt(int irq, void *dev_id) 1156{ 1157 struct net_device *dev = dev_id; 1158 struct wl3501_card *this; 1159 1160 this = netdev_priv(dev); 1161 spin_lock(&this->lock); 1162 wl3501_ack_interrupt(this); 1163 wl3501_block_interrupt(this); 1164 wl3501_rx_interrupt(dev); 1165 wl3501_unblock_interrupt(this); 1166 spin_unlock(&this->lock); 1167 1168 return IRQ_HANDLED; 1169} 1170 1171static int wl3501_reset_board(struct wl3501_card *this) 1172{ 1173 u8 tmp = 0; 1174 int i, rc = 0; 1175 1176 /* Coreset */ 1177 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); 1178 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); 1179 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); 1180 1181 /* Reset SRAM 0x480 to zero */ 1182 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); 1183 1184 /* Start up */ 1185 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); 1186 1187 WL3501_NOPLOOP(1024 * 50); 1188 1189 wl3501_unblock_interrupt(this); /* acme: was commented */ 1190 1191 /* Polling Self_Test_Status */ 1192 for (i = 0; i < 10000; i++) { 1193 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp)); 1194 1195 if (tmp == 'W') { 1196 /* firmware complete all test successfully */ 1197 tmp = 'A'; 1198 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); 1199 goto out; 1200 } 1201 WL3501_NOPLOOP(10); 1202 } 1203 printk(KERN_WARNING "%s: failed to reset the board!\n", __FUNCTION__); 1204 rc = -ENODEV; 1205out: 1206 return rc; 1207} 1208 1209static int wl3501_init_firmware(struct wl3501_card *this) 1210{ 1211 u16 ptr, next; 1212 int rc = wl3501_reset_board(this); 1213 1214 if (rc) 1215 goto fail; 1216 this->card_name[0] = '\0'; 1217 wl3501_get_from_wla(this, 0x1a00, 1218 this->card_name, sizeof(this->card_name)); 1219 this->card_name[sizeof(this->card_name) - 1] = '\0'; 1220 this->firmware_date[0] = '\0'; 1221 wl3501_get_from_wla(this, 0x1a40, 1222 this->firmware_date, sizeof(this->firmware_date)); 1223 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0'; 1224 /* Switch to SRAM Page 0 */ 1225 wl3501_switch_page(this, WL3501_BSS_SPAGE0); 1226 /* Read parameter from card */ 1227 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2); 1228 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2); 1229 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2); 1230 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2); 1231 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2); 1232 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2); 1233 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start; 1234 this->esbq_req_end += this->esbq_req_start; 1235 this->esbq_confirm = this->esbq_confirm_start; 1236 this->esbq_confirm_end += this->esbq_confirm_start; 1237 /* Initial Tx Buffer */ 1238 this->tx_buffer_cnt = 1; 1239 ptr = this->tx_buffer_head; 1240 next = ptr + WL3501_BLKSZ; 1241 while ((next - this->tx_buffer_head) < this->tx_buffer_size) { 1242 this->tx_buffer_cnt++; 1243 wl3501_set_to_wla(this, ptr, &next, sizeof(next)); 1244 ptr = next; 1245 next = ptr + WL3501_BLKSZ; 1246 } 1247 rc = 0; 1248 next = 0; 1249 wl3501_set_to_wla(this, ptr, &next, sizeof(next)); 1250 this->tx_buffer_tail = ptr; 1251out: 1252 return rc; 1253fail: 1254 printk(KERN_WARNING "%s: failed!\n", __FUNCTION__); 1255 goto out; 1256} 1257 1258static int wl3501_close(struct net_device *dev) 1259{ 1260 struct wl3501_card *this = dev->priv; 1261 int rc = -ENODEV; 1262 unsigned long flags; 1263 struct pcmcia_device *link; 1264 link = this->p_dev; 1265 1266 spin_lock_irqsave(&this->lock, flags); 1267 link->open--; 1268 1269 /* Stop wl3501_hard_start_xmit() from now on */ 1270 netif_stop_queue(dev); 1271 wl3501_ack_interrupt(this); 1272 1273 /* Mask interrupts from the SUTRO */ 1274 wl3501_block_interrupt(this); 1275 1276 rc = 0; 1277 printk(KERN_INFO "%s: WL3501 closed\n", dev->name); 1278 spin_unlock_irqrestore(&this->lock, flags); 1279 return rc; 1280} 1281 1282/** 1283 * wl3501_reset - Reset the SUTRO. 1284 * @dev - network device 1285 * 1286 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close() 1287 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver 1288 * is running. It seems to be dangerous. 1289 */ 1290static int wl3501_reset(struct net_device *dev) 1291{ 1292 struct wl3501_card *this = dev->priv; 1293 int rc = -ENODEV; 1294 1295 wl3501_block_interrupt(this); 1296 1297 if (wl3501_init_firmware(this)) { 1298 printk(KERN_WARNING "%s: Can't initialize Firmware!\n", 1299 dev->name); 1300 /* Free IRQ, and mark IRQ as unused */ 1301 free_irq(dev->irq, dev); 1302 goto out; 1303 } 1304 1305 /* 1306 * Queue has to be started only when the Card is Started 1307 */ 1308 netif_stop_queue(dev); 1309 this->adhoc_times = 0; 1310 wl3501_ack_interrupt(this); 1311 wl3501_unblock_interrupt(this); 1312 wl3501_mgmt_scan(this, 100); 1313 dprintk(1, "%s: device reset", dev->name); 1314 rc = 0; 1315out: 1316 return rc; 1317} 1318 1319static void wl3501_tx_timeout(struct net_device *dev) 1320{ 1321 struct wl3501_card *this = dev->priv; 1322 struct net_device_stats *stats = &this->stats; 1323 unsigned long flags; 1324 int rc; 1325 1326 stats->tx_errors++; 1327 spin_lock_irqsave(&this->lock, flags); 1328 rc = wl3501_reset(dev); 1329 spin_unlock_irqrestore(&this->lock, flags); 1330 if (rc) 1331 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n", 1332 dev->name, rc); 1333 else { 1334 dev->trans_start = jiffies; 1335 netif_wake_queue(dev); 1336 } 1337} 1338 1339/* 1340 * Return : 0 - OK 1341 * 1 - Could not transmit (dev_queue_xmit will queue it) 1342 * and try to sent it later 1343 */ 1344static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 1345{ 1346 int enabled, rc; 1347 struct wl3501_card *this = dev->priv; 1348 unsigned long flags; 1349 1350 spin_lock_irqsave(&this->lock, flags); 1351 enabled = wl3501_block_interrupt(this); 1352 dev->trans_start = jiffies; 1353 rc = wl3501_send_pkt(this, skb->data, skb->len); 1354 if (enabled) 1355 wl3501_unblock_interrupt(this); 1356 if (rc) { 1357 ++this->stats.tx_dropped; 1358 netif_stop_queue(dev); 1359 } else { 1360 ++this->stats.tx_packets; 1361 this->stats.tx_bytes += skb->len; 1362 kfree_skb(skb); 1363 1364 if (this->tx_buffer_cnt < 2) 1365 netif_stop_queue(dev); 1366 } 1367 spin_unlock_irqrestore(&this->lock, flags); 1368 return rc; 1369} 1370 1371static int wl3501_open(struct net_device *dev) 1372{ 1373 int rc = -ENODEV; 1374 struct wl3501_card *this = dev->priv; 1375 unsigned long flags; 1376 struct pcmcia_device *link; 1377 link = this->p_dev; 1378 1379 spin_lock_irqsave(&this->lock, flags); 1380 if (!pcmcia_dev_present(link)) 1381 goto out; 1382 netif_device_attach(dev); 1383 link->open++; 1384 1385 /* Initial WL3501 firmware */ 1386 dprintk(1, "%s: Initialize WL3501 firmware...", dev->name); 1387 if (wl3501_init_firmware(this)) 1388 goto fail; 1389 /* Initial device variables */ 1390 this->adhoc_times = 0; 1391 /* Acknowledge Interrupt, for cleaning last state */ 1392 wl3501_ack_interrupt(this); 1393 1394 /* Enable interrupt from card after all */ 1395 wl3501_unblock_interrupt(this); 1396 wl3501_mgmt_scan(this, 100); 1397 rc = 0; 1398 dprintk(1, "%s: WL3501 opened", dev->name); 1399 printk(KERN_INFO "%s: Card Name: %s\n" 1400 "%s: Firmware Date: %s\n", 1401 dev->name, this->card_name, 1402 dev->name, this->firmware_date); 1403out: 1404 spin_unlock_irqrestore(&this->lock, flags); 1405 return rc; 1406fail: 1407 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name); 1408 goto out; 1409} 1410 1411static struct net_device_stats *wl3501_get_stats(struct net_device *dev) 1412{ 1413 struct wl3501_card *this = dev->priv; 1414 1415 return &this->stats; 1416} 1417 1418static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) 1419{ 1420 struct wl3501_card *this = dev->priv; 1421 struct iw_statistics *wstats = &this->wstats; 1422 u32 value; /* size checked: it is u32 */ 1423 1424 memset(wstats, 0, sizeof(*wstats)); 1425 wstats->status = netif_running(dev); 1426 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT, 1427 &value, sizeof(value))) 1428 wstats->discard.code += value; 1429 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT, 1430 &value, sizeof(value))) 1431 wstats->discard.code += value; 1432 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT, 1433 &value, sizeof(value))) 1434 wstats->discard.code += value; 1435 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT, 1436 &value, sizeof(value))) 1437 wstats->discard.retries = value; 1438 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT, 1439 &value, sizeof(value))) 1440 wstats->discard.misc += value; 1441 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT, 1442 &value, sizeof(value))) 1443 wstats->discard.misc += value; 1444 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT, 1445 &value, sizeof(value))) 1446 wstats->discard.misc += value; 1447 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT, 1448 &value, sizeof(value))) 1449 wstats->discard.misc += value; 1450 return wstats; 1451} 1452 1453static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) 1454{ 1455 strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver)); 1456} 1457 1458static const struct ethtool_ops ops = { 1459 .get_drvinfo = wl3501_get_drvinfo 1460}; 1461 1462/** 1463 * wl3501_detach - deletes a driver "instance" 1464 * @link - FILL_IN 1465 * 1466 * This deletes a driver "instance". The device is de-registered with Card 1467 * Services. If it has been released, all local data structures are freed. 1468 * Otherwise, the structures will be freed when the device is released. 1469 */ 1470static void wl3501_detach(struct pcmcia_device *link) 1471{ 1472 struct net_device *dev = link->priv; 1473 1474 /* If the device is currently configured and active, we won't actually 1475 * delete it yet. Instead, it is marked so that when the release() 1476 * function is called, that will trigger a proper detach(). */ 1477 1478 while (link->open > 0) 1479 wl3501_close(dev); 1480 1481 netif_device_detach(dev); 1482 wl3501_release(link); 1483 1484 if (link->priv) 1485 free_netdev(link->priv); 1486 1487 return; 1488} 1489 1490static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info, 1491 union iwreq_data *wrqu, char *extra) 1492{ 1493 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name)); 1494 return 0; 1495} 1496 1497static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info, 1498 union iwreq_data *wrqu, char *extra) 1499{ 1500 struct wl3501_card *this = dev->priv; 1501 int channel = wrqu->freq.m; 1502 int rc = -EINVAL; 1503 1504 if (iw_valid_channel(this->reg_domain, channel)) { 1505 this->chan = channel; 1506 rc = wl3501_reset(dev); 1507 } 1508 return rc; 1509} 1510 1511static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info, 1512 union iwreq_data *wrqu, char *extra) 1513{ 1514 struct wl3501_card *this = dev->priv; 1515 1516 wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000; 1517 wrqu->freq.e = 1; 1518 return 0; 1519} 1520 1521static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info, 1522 union iwreq_data *wrqu, char *extra) 1523{ 1524 int rc = -EINVAL; 1525 1526 if (wrqu->mode == IW_MODE_INFRA || 1527 wrqu->mode == IW_MODE_ADHOC || 1528 wrqu->mode == IW_MODE_AUTO) { 1529 struct wl3501_card *this = dev->priv; 1530 1531 this->net_type = wrqu->mode; 1532 rc = wl3501_reset(dev); 1533 } 1534 return rc; 1535} 1536 1537static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info, 1538 union iwreq_data *wrqu, char *extra) 1539{ 1540 struct wl3501_card *this = dev->priv; 1541 1542 wrqu->mode = this->net_type; 1543 return 0; 1544} 1545 1546static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info, 1547 union iwreq_data *wrqu, char *extra) 1548{ 1549 struct wl3501_card *this = dev->priv; 1550 1551 wrqu->sens.value = this->rssi; 1552 wrqu->sens.disabled = !wrqu->sens.value; 1553 wrqu->sens.fixed = 1; 1554 return 0; 1555} 1556 1557static int wl3501_get_range(struct net_device *dev, 1558 struct iw_request_info *info, 1559 union iwreq_data *wrqu, char *extra) 1560{ 1561 struct iw_range *range = (struct iw_range *)extra; 1562 1563 /* Set the length (very important for backward compatibility) */ 1564 wrqu->data.length = sizeof(*range); 1565 1566 /* Set all the info we don't care or don't know about to zero */ 1567 memset(range, 0, sizeof(*range)); 1568 1569 /* Set the Wireless Extension versions */ 1570 range->we_version_compiled = WIRELESS_EXT; 1571 range->we_version_source = 1; 1572 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */ 1573 return 0; 1574} 1575 1576static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info, 1577 union iwreq_data *wrqu, char *extra) 1578{ 1579 struct wl3501_card *this = dev->priv; 1580 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 }; 1581 int rc = -EINVAL; 1582 1583 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) 1584 goto out; 1585 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) { 1586 } else 1587 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); 1588 rc = 0; 1589out: 1590 return rc; 1591} 1592 1593static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info, 1594 union iwreq_data *wrqu, char *extra) 1595{ 1596 struct wl3501_card *this = dev->priv; 1597 1598 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1599 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN); 1600 return 0; 1601} 1602 1603static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info, 1604 union iwreq_data *wrqu, char *extra) 1605{ 1606 return wl3501_reset(dev); 1607} 1608 1609static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info, 1610 union iwreq_data *wrqu, char *extra) 1611{ 1612 struct wl3501_card *this = dev->priv; 1613 int i; 1614 char *current_ev = extra; 1615 struct iw_event iwe; 1616 1617 for (i = 0; i < this->bss_cnt; ++i) { 1618 iwe.cmd = SIOCGIWAP; 1619 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 1620 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN); 1621 current_ev = iwe_stream_add_event(current_ev, 1622 extra + IW_SCAN_MAX_DATA, 1623 &iwe, IW_EV_ADDR_LEN); 1624 iwe.cmd = SIOCGIWESSID; 1625 iwe.u.data.flags = 1; 1626 iwe.u.data.length = this->bss_set[i].ssid.el.len; 1627 current_ev = iwe_stream_add_point(current_ev, 1628 extra + IW_SCAN_MAX_DATA, 1629 &iwe, 1630 this->bss_set[i].ssid.essid); 1631 iwe.cmd = SIOCGIWMODE; 1632 iwe.u.mode = this->bss_set[i].bss_type; 1633 current_ev = iwe_stream_add_event(current_ev, 1634 extra + IW_SCAN_MAX_DATA, 1635 &iwe, IW_EV_UINT_LEN); 1636 iwe.cmd = SIOCGIWFREQ; 1637 iwe.u.freq.m = this->bss_set[i].ds_pset.chan; 1638 iwe.u.freq.e = 0; 1639 current_ev = iwe_stream_add_event(current_ev, 1640 extra + IW_SCAN_MAX_DATA, 1641 &iwe, IW_EV_FREQ_LEN); 1642 iwe.cmd = SIOCGIWENCODE; 1643 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY) 1644 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; 1645 else 1646 iwe.u.data.flags = IW_ENCODE_DISABLED; 1647 iwe.u.data.length = 0; 1648 current_ev = iwe_stream_add_point(current_ev, 1649 extra + IW_SCAN_MAX_DATA, 1650 &iwe, NULL); 1651 } 1652 /* Length of data */ 1653 wrqu->data.length = (current_ev - extra); 1654 wrqu->data.flags = 0; 1655 return 0; 1656} 1657 1658static int wl3501_set_essid(struct net_device *dev, 1659 struct iw_request_info *info, 1660 union iwreq_data *wrqu, char *extra) 1661{ 1662 struct wl3501_card *this = dev->priv; 1663 1664 if (wrqu->data.flags) { 1665 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, 1666 &this->essid.el, 1667 extra, wrqu->data.length); 1668 } else { /* We accept any ESSID */ 1669 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, 1670 &this->essid.el, "ANY", 3); 1671 } 1672 return wl3501_reset(dev); 1673} 1674 1675static int wl3501_get_essid(struct net_device *dev, 1676 struct iw_request_info *info, 1677 union iwreq_data *wrqu, char *extra) 1678{ 1679 struct wl3501_card *this = dev->priv; 1680 unsigned long flags; 1681 1682 spin_lock_irqsave(&this->lock, flags); 1683 wrqu->essid.flags = 1; 1684 wrqu->essid.length = this->essid.el.len; 1685 memcpy(extra, this->essid.essid, this->essid.el.len); 1686 spin_unlock_irqrestore(&this->lock, flags); 1687 return 0; 1688} 1689 1690static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info, 1691 union iwreq_data *wrqu, char *extra) 1692{ 1693 struct wl3501_card *this = dev->priv; 1694 1695 if (wrqu->data.length > sizeof(this->nick)) 1696 return -E2BIG; 1697 strlcpy(this->nick, extra, wrqu->data.length); 1698 return 0; 1699} 1700 1701static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info, 1702 union iwreq_data *wrqu, char *extra) 1703{ 1704 struct wl3501_card *this = dev->priv; 1705 1706 strlcpy(extra, this->nick, 32); 1707 wrqu->data.length = strlen(extra); 1708 return 0; 1709} 1710 1711static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info, 1712 union iwreq_data *wrqu, char *extra) 1713{ 1714 wrqu->bitrate.value = 2000000; 1715 wrqu->bitrate.fixed = 1; 1716 return 0; 1717} 1718 1719static int wl3501_get_rts_threshold(struct net_device *dev, 1720 struct iw_request_info *info, 1721 union iwreq_data *wrqu, char *extra) 1722{ 1723 u16 threshold; /* size checked: it is u16 */ 1724 struct wl3501_card *this = dev->priv; 1725 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD, 1726 &threshold, sizeof(threshold)); 1727 if (!rc) { 1728 wrqu->rts.value = threshold; 1729 wrqu->rts.disabled = threshold >= 2347; 1730 wrqu->rts.fixed = 1; 1731 } 1732 return rc; 1733} 1734 1735static int wl3501_get_frag_threshold(struct net_device *dev, 1736 struct iw_request_info *info, 1737 union iwreq_data *wrqu, char *extra) 1738{ 1739 u16 threshold; /* size checked: it is u16 */ 1740 struct wl3501_card *this = dev->priv; 1741 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD, 1742 &threshold, sizeof(threshold)); 1743 if (!rc) { 1744 wrqu->frag.value = threshold; 1745 wrqu->frag.disabled = threshold >= 2346; 1746 wrqu->frag.fixed = 1; 1747 } 1748 return rc; 1749} 1750 1751static int wl3501_get_txpow(struct net_device *dev, 1752 struct iw_request_info *info, 1753 union iwreq_data *wrqu, char *extra) 1754{ 1755 u16 txpow; 1756 struct wl3501_card *this = dev->priv; 1757 int rc = wl3501_get_mib_value(this, 1758 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL, 1759 &txpow, sizeof(txpow)); 1760 if (!rc) { 1761 wrqu->txpower.value = txpow; 1762 wrqu->txpower.disabled = 0; 1763 /* 1764 * From the MIB values I think this can be configurable, 1765 * as it lists several tx power levels -acme 1766 */ 1767 wrqu->txpower.fixed = 0; 1768 wrqu->txpower.flags = IW_TXPOW_MWATT; 1769 } 1770 return rc; 1771} 1772 1773static int wl3501_get_retry(struct net_device *dev, 1774 struct iw_request_info *info, 1775 union iwreq_data *wrqu, char *extra) 1776{ 1777 u8 retry; /* size checked: it is u8 */ 1778 struct wl3501_card *this = dev->priv; 1779 int rc = wl3501_get_mib_value(this, 1780 WL3501_MIB_ATTR_LONG_RETRY_LIMIT, 1781 &retry, sizeof(retry)); 1782 if (rc) 1783 goto out; 1784 if (wrqu->retry.flags & IW_RETRY_LONG) { 1785 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 1786 goto set_value; 1787 } 1788 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT, 1789 &retry, sizeof(retry)); 1790 if (rc) 1791 goto out; 1792 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; 1793set_value: 1794 wrqu->retry.value = retry; 1795 wrqu->retry.disabled = 0; 1796out: 1797 return rc; 1798} 1799 1800static int wl3501_get_encode(struct net_device *dev, 1801 struct iw_request_info *info, 1802 union iwreq_data *wrqu, char *extra) 1803{ 1804 u8 implemented, restricted, keys[100], len_keys, tocopy; 1805 struct wl3501_card *this = dev->priv; 1806 int rc = wl3501_get_mib_value(this, 1807 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED, 1808 &implemented, sizeof(implemented)); 1809 if (rc) 1810 goto out; 1811 if (!implemented) { 1812 wrqu->encoding.flags = IW_ENCODE_DISABLED; 1813 goto out; 1814 } 1815 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED, 1816 &restricted, sizeof(restricted)); 1817 if (rc) 1818 goto out; 1819 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED : 1820 IW_ENCODE_OPEN; 1821 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN, 1822 &len_keys, sizeof(len_keys)); 1823 if (rc) 1824 goto out; 1825 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS, 1826 keys, len_keys); 1827 if (rc) 1828 goto out; 1829 tocopy = min_t(u8, len_keys, wrqu->encoding.length); 1830 tocopy = min_t(u8, tocopy, 100); 1831 wrqu->encoding.length = tocopy; 1832 memset(extra, 0, tocopy); 1833 memcpy(extra, keys, tocopy); 1834out: 1835 return rc; 1836} 1837 1838static int wl3501_get_power(struct net_device *dev, 1839 struct iw_request_info *info, 1840 union iwreq_data *wrqu, char *extra) 1841{ 1842 u8 pwr_state; 1843 struct wl3501_card *this = dev->priv; 1844 int rc = wl3501_get_mib_value(this, 1845 WL3501_MIB_ATTR_CURRENT_PWR_STATE, 1846 &pwr_state, sizeof(pwr_state)); 1847 if (rc) 1848 goto out; 1849 wrqu->power.disabled = !pwr_state; 1850 wrqu->power.flags = IW_POWER_ON; 1851out: 1852 return rc; 1853} 1854 1855static const iw_handler wl3501_handler[] = { 1856 [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name, 1857 [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq, 1858 [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq, 1859 [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode, 1860 [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode, 1861 [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens, 1862 [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range, 1863 [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy, 1864 [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy, 1865 [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy, 1866 [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy, 1867 [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap, 1868 [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap, 1869 [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan, 1870 [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan, 1871 [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid, 1872 [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid, 1873 [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick, 1874 [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick, 1875 [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate, 1876 [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold, 1877 [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold, 1878 [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow, 1879 [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry, 1880 [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode, 1881 [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power, 1882}; 1883 1884static const struct iw_handler_def wl3501_handler_def = { 1885 .num_standard = sizeof(wl3501_handler) / sizeof(iw_handler), 1886 .standard = (iw_handler *)wl3501_handler, 1887 .get_wireless_stats = wl3501_get_wireless_stats, 1888}; 1889 1890/** 1891 * wl3501_attach - creates an "instance" of the driver 1892 * 1893 * Creates an "instance" of the driver, allocating local data structures for 1894 * one device. The device is registered with Card Services. 1895 * 1896 * The dev_link structure is initialized, but we don't actually configure the 1897 * card at this point -- we wait until we receive a card insertion event. 1898 */ 1899static int wl3501_probe(struct pcmcia_device *p_dev) 1900{ 1901 struct net_device *dev; 1902 struct wl3501_card *this; 1903 1904 /* The io structure describes IO port mapping */ 1905 p_dev->io.NumPorts1 = 16; 1906 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 1907 p_dev->io.IOAddrLines = 5; 1908 1909 /* Interrupt setup */ 1910 p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; 1911 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID; 1912 p_dev->irq.Handler = wl3501_interrupt; 1913 1914 /* General socket configuration */ 1915 p_dev->conf.Attributes = CONF_ENABLE_IRQ; 1916 p_dev->conf.IntType = INT_MEMORY_AND_IO; 1917 p_dev->conf.ConfigIndex = 1; 1918 1919 dev = alloc_etherdev(sizeof(struct wl3501_card)); 1920 if (!dev) 1921 goto out_link; 1922 dev->open = wl3501_open; 1923 dev->stop = wl3501_close; 1924 dev->hard_start_xmit = wl3501_hard_start_xmit; 1925 dev->tx_timeout = wl3501_tx_timeout; 1926 dev->watchdog_timeo = 5 * HZ; 1927 dev->get_stats = wl3501_get_stats; 1928 this = dev->priv; 1929 this->wireless_data.spy_data = &this->spy_data; 1930 this->p_dev = p_dev; 1931 dev->wireless_data = &this->wireless_data; 1932 dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def; 1933 SET_ETHTOOL_OPS(dev, &ops); 1934 netif_stop_queue(dev); 1935 p_dev->priv = p_dev->irq.Instance = dev; 1936 1937 return wl3501_config(p_dev); 1938out_link: 1939 return -ENOMEM; 1940} 1941 1942#define CS_CHECK(fn, ret) \ 1943do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) 1944 1945/** 1946 * wl3501_config - configure the PCMCIA socket and make eth device available 1947 * @link - FILL_IN 1948 * 1949 * wl3501_config() is scheduled to run after a CARD_INSERTION event is 1950 * received, to configure the PCMCIA socket, and to make the ethernet device 1951 * available to the system. 1952 */ 1953static int wl3501_config(struct pcmcia_device *link) 1954{ 1955 struct net_device *dev = link->priv; 1956 int i = 0, j, last_fn, last_ret; 1957 struct wl3501_card *this; 1958 1959 /* Try allocating IO ports. This tries a few fixed addresses. If you 1960 * want, you can also read the card's config table to pick addresses -- 1961 * see the serial driver for an example. */ 1962 1963 for (j = 0x280; j < 0x400; j += 0x20) { 1964 /* The '^0x300' is so that we probe 0x300-0x3ff first, then 1965 * 0x200-0x2ff, and so on, because this seems safer */ 1966 link->io.BasePort1 = j; 1967 link->io.BasePort2 = link->io.BasePort1 + 0x10; 1968 i = pcmcia_request_io(link, &link->io); 1969 if (i == CS_SUCCESS) 1970 break; 1971 } 1972 if (i != CS_SUCCESS) { 1973 cs_error(link, RequestIO, i); 1974 goto failed; 1975 } 1976 1977 /* Now allocate an interrupt line. Note that this does not actually 1978 * assign a handler to the interrupt. */ 1979 1980 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); 1981 1982 /* This actually configures the PCMCIA socket -- setting up the I/O 1983 * windows and the interrupt mapping. */ 1984 1985 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); 1986 1987 dev->irq = link->irq.AssignedIRQ; 1988 dev->base_addr = link->io.BasePort1; 1989 SET_NETDEV_DEV(dev, &handle_to_dev(link)); 1990 if (register_netdev(dev)) { 1991 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n"); 1992 goto failed; 1993 } 1994 1995 SET_MODULE_OWNER(dev); 1996 1997 this = dev->priv; 1998 /* 1999 * At this point, the dev_node_t structure(s) should be initialized and 2000 * arranged in a linked list at link->dev_node. 2001 */ 2002 link->dev_node = &this->node; 2003 2004 this->base_addr = dev->base_addr; 2005 2006 if (!wl3501_get_flash_mac_addr(this)) { 2007 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n", 2008 dev->name); 2009 goto failed; 2010 } 2011 strcpy(this->node.dev_name, dev->name); 2012 2013 /* print probe information */ 2014 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, MAC addr in flash ROM:", 2015 dev->name, this->base_addr, (int)dev->irq); 2016 for (i = 0; i < 6; i++) { 2017 dev->dev_addr[i] = ((char *)&this->mac_addr)[i]; 2018 printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]); 2019 } 2020 printk("\n"); 2021 /* 2022 * Initialize card parameters - added by jss 2023 */ 2024 this->net_type = IW_MODE_INFRA; 2025 this->bss_cnt = 0; 2026 this->join_sta_bss = 0; 2027 this->adhoc_times = 0; 2028 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, 2029 "ANY", 3); 2030 this->card_name[0] = '\0'; 2031 this->firmware_date[0] = '\0'; 2032 this->rssi = 255; 2033 this->chan = iw_default_channel(this->reg_domain); 2034 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick)); 2035 spin_lock_init(&this->lock); 2036 init_waitqueue_head(&this->wait); 2037 netif_start_queue(dev); 2038 return 0; 2039 2040cs_failed: 2041 cs_error(link, last_fn, last_ret); 2042failed: 2043 wl3501_release(link); 2044 return -ENODEV; 2045} 2046 2047/** 2048 * wl3501_release - unregister the net, release PCMCIA configuration 2049 * @arg - link 2050 * 2051 * After a card is removed, wl3501_release() will unregister the net device, 2052 * and release the PCMCIA configuration. If the device is still open, this 2053 * will be postponed until it is closed. 2054 */ 2055static void wl3501_release(struct pcmcia_device *link) 2056{ 2057 struct net_device *dev = link->priv; 2058 2059 /* Unlink the device chain */ 2060 if (link->dev_node) 2061 unregister_netdev(dev); 2062 2063 pcmcia_disable_device(link); 2064} 2065 2066static int wl3501_suspend(struct pcmcia_device *link) 2067{ 2068 struct net_device *dev = link->priv; 2069 2070 wl3501_pwr_mgmt(dev->priv, WL3501_SUSPEND); 2071 if (link->open) 2072 netif_device_detach(dev); 2073 2074 return 0; 2075} 2076 2077static int wl3501_resume(struct pcmcia_device *link) 2078{ 2079 struct net_device *dev = link->priv; 2080 2081 wl3501_pwr_mgmt(dev->priv, WL3501_RESUME); 2082 if (link->open) { 2083 wl3501_reset(dev); 2084 netif_device_attach(dev); 2085 } 2086 2087 return 0; 2088} 2089 2090 2091static struct pcmcia_device_id wl3501_ids[] = { 2092 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001), 2093 PCMCIA_DEVICE_NULL 2094}; 2095MODULE_DEVICE_TABLE(pcmcia, wl3501_ids); 2096 2097static struct pcmcia_driver wl3501_driver = { 2098 .owner = THIS_MODULE, 2099 .drv = { 2100 .name = "wl3501_cs", 2101 }, 2102 .probe = wl3501_probe, 2103 .remove = wl3501_detach, 2104 .id_table = wl3501_ids, 2105 .suspend = wl3501_suspend, 2106 .resume = wl3501_resume, 2107}; 2108 2109static int __init wl3501_init_module(void) 2110{ 2111 return pcmcia_register_driver(&wl3501_driver); 2112} 2113 2114static void __exit wl3501_exit_module(void) 2115{ 2116 pcmcia_unregister_driver(&wl3501_driver); 2117} 2118 2119module_init(wl3501_init_module); 2120module_exit(wl3501_exit_module); 2121 2122MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, " 2123 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>," 2124 "Gustavo Niemeyer <niemeyer@conectiva.com>"); 2125MODULE_DESCRIPTION("Planet wl3501 wireless driver"); 2126MODULE_LICENSE("GPL"); 2127