Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | #undef REALLY_SLOW_IO /* most systems can safely undef this */ |
| 30 | |
| 31 | #include <linux/config.h> |
| 32 | #include <linux/delay.h> |
| 33 | #include <linux/types.h> |
| 34 | #include <linux/ethtool.h> |
| 35 | #include <linux/init.h> |
| 36 | #include <linux/interrupt.h> |
| 37 | #include <linux/in.h> |
| 38 | #include <linux/kernel.h> |
| 39 | #include <linux/module.h> |
| 40 | #include <linux/fcntl.h> |
| 41 | #include <linux/if_arp.h> |
| 42 | #include <linux/ioport.h> |
| 43 | #include <linux/netdevice.h> |
| 44 | #include <linux/etherdevice.h> |
| 45 | #include <linux/skbuff.h> |
| 46 | #include <linux/slab.h> |
| 47 | #include <linux/string.h> |
| 48 | #include <linux/wireless.h> |
| 49 | |
| 50 | #include <net/iw_handler.h> |
| 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #include <pcmcia/cs_types.h> |
| 53 | #include <pcmcia/cs.h> |
| 54 | #include <pcmcia/cistpl.h> |
| 55 | #include <pcmcia/cisreg.h> |
| 56 | #include <pcmcia/ds.h> |
| 57 | |
| 58 | #include <asm/io.h> |
| 59 | #include <asm/uaccess.h> |
| 60 | #include <asm/system.h> |
| 61 | |
| 62 | #include "wl3501.h" |
| 63 | |
| 64 | #ifndef __i386__ |
| 65 | #define slow_down_io() |
| 66 | #endif |
| 67 | |
| 68 | /* For rough constant delay */ |
| 69 | #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); } |
| 70 | |
| 71 | /* |
| 72 | * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If you do not |
| 73 | * define PCMCIA_DEBUG at all, all the debug code will be left out. If you |
| 74 | * compile with PCMCIA_DEBUG=0, the debug code will be present but disabled -- |
| 75 | * but it can then be enabled for specific modules at load time with a |
| 76 | * 'pc_debug=#' option to insmod. |
| 77 | */ |
| 78 | #define PCMCIA_DEBUG 0 |
| 79 | #ifdef PCMCIA_DEBUG |
| 80 | static int pc_debug = PCMCIA_DEBUG; |
| 81 | module_param(pc_debug, int, 0); |
| 82 | #define dprintk(n, format, args...) \ |
| 83 | { if (pc_debug > (n)) \ |
| 84 | printk(KERN_INFO "%s: " format "\n", __FUNCTION__ , ##args); } |
| 85 | #else |
| 86 | #define dprintk(n, format, args...) |
| 87 | #endif |
| 88 | |
| 89 | #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); } |
| 90 | #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); } |
| 91 | #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); } |
| 92 | |
| 93 | #define WL3501_RELEASE_TIMEOUT (25 * HZ) |
| 94 | #define WL3501_MAX_ADHOC_TRIES 16 |
| 95 | |
| 96 | #define WL3501_RESUME 0 |
| 97 | #define WL3501_SUSPEND 1 |
| 98 | |
| 99 | /* |
| 100 | * The event() function is this driver's Card Services event handler. It will |
| 101 | * be called by Card Services when an appropriate card status event is |
| 102 | * received. The config() and release() entry points are used to configure or |
| 103 | * release a socket, in response to card insertion and ejection events. They |
| 104 | * are invoked from the wl24 event handler. |
| 105 | */ |
| 106 | static void wl3501_config(dev_link_t *link); |
| 107 | static void wl3501_release(dev_link_t *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | |
| 109 | /* |
| 110 | * The dev_info variable is the "key" that is used to match up this |
| 111 | * device driver with appropriate cards, through the card configuration |
| 112 | * database. |
| 113 | */ |
| 114 | static dev_info_t wl3501_dev_info = "wl3501_cs"; |
| 115 | |
| 116 | static int wl3501_chan2freq[] = { |
| 117 | [0] = 2412, [1] = 2417, [2] = 2422, [3] = 2427, [4] = 2432, |
| 118 | [5] = 2437, [6] = 2442, [7] = 2447, [8] = 2452, [9] = 2457, |
| 119 | [10] = 2462, [11] = 2467, [12] = 2472, [13] = 2477, |
| 120 | }; |
| 121 | |
| 122 | static const struct { |
| 123 | int reg_domain; |
| 124 | int min, max, deflt; |
| 125 | } iw_channel_table[] = { |
| 126 | { |
| 127 | .reg_domain = IW_REG_DOMAIN_FCC, |
| 128 | .min = 1, |
| 129 | .max = 11, |
| 130 | .deflt = 1, |
| 131 | }, |
| 132 | { |
| 133 | .reg_domain = IW_REG_DOMAIN_DOC, |
| 134 | .min = 1, |
| 135 | .max = 11, |
| 136 | .deflt = 1, |
| 137 | }, |
| 138 | { |
| 139 | .reg_domain = IW_REG_DOMAIN_ETSI, |
| 140 | .min = 1, |
| 141 | .max = 13, |
| 142 | .deflt = 1, |
| 143 | }, |
| 144 | { |
| 145 | .reg_domain = IW_REG_DOMAIN_SPAIN, |
| 146 | .min = 10, |
| 147 | .max = 11, |
| 148 | .deflt = 10, |
| 149 | }, |
| 150 | { |
| 151 | .reg_domain = IW_REG_DOMAIN_FRANCE, |
| 152 | .min = 10, |
| 153 | .max = 13, |
| 154 | .deflt = 10, |
| 155 | }, |
| 156 | { |
| 157 | .reg_domain = IW_REG_DOMAIN_MKK, |
| 158 | .min = 14, |
| 159 | .max = 14, |
| 160 | .deflt = 14, |
| 161 | }, |
| 162 | { |
| 163 | .reg_domain = IW_REG_DOMAIN_MKK1, |
| 164 | .min = 1, |
| 165 | .max = 14, |
| 166 | .deflt = 1, |
| 167 | }, |
| 168 | { |
| 169 | .reg_domain = IW_REG_DOMAIN_ISRAEL, |
| 170 | .min = 3, |
| 171 | .max = 9, |
| 172 | .deflt = 9, |
| 173 | }, |
| 174 | }; |
| 175 | |
| 176 | /** |
| 177 | * iw_valid_channel - validate channel in regulatory domain |
| 178 | * @reg_comain - regulatory domain |
| 179 | * @channel - channel to validate |
| 180 | * |
| 181 | * Returns 0 if invalid in the specified regulatory domain, non-zero if valid. |
| 182 | */ |
| 183 | static int iw_valid_channel(int reg_domain, int channel) |
| 184 | { |
| 185 | int i, rc = 0; |
| 186 | |
| 187 | for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) |
| 188 | if (reg_domain == iw_channel_table[i].reg_domain) { |
| 189 | rc = channel >= iw_channel_table[i].min && |
| 190 | channel <= iw_channel_table[i].max; |
| 191 | break; |
| 192 | } |
| 193 | return rc; |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * iw_default_channel - get default channel for a regulatory domain |
| 198 | * @reg_comain - regulatory domain |
| 199 | * |
| 200 | * Returns the default channel for a regulatory domain |
| 201 | */ |
| 202 | static int iw_default_channel(int reg_domain) |
| 203 | { |
| 204 | int i, rc = 1; |
| 205 | |
| 206 | for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) |
| 207 | if (reg_domain == iw_channel_table[i].reg_domain) { |
| 208 | rc = iw_channel_table[i].deflt; |
| 209 | break; |
| 210 | } |
| 211 | return rc; |
| 212 | } |
| 213 | |
| 214 | static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id, |
| 215 | struct iw_mgmt_info_element *el, |
| 216 | void *value, int len) |
| 217 | { |
| 218 | el->id = id; |
| 219 | el->len = len; |
| 220 | memcpy(el->data, value, len); |
| 221 | } |
| 222 | |
| 223 | static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to, |
| 224 | struct iw_mgmt_info_element *from) |
| 225 | { |
| 226 | iw_set_mgmt_info_element(from->id, to, from->data, from->len); |
| 227 | } |
| 228 | |
| 229 | /* |
| 230 | * A linked list of "instances" of the wl24 device. Each actual PCMCIA card |
| 231 | * corresponds to one device instance, and is described by one dev_link_t |
| 232 | * structure (defined in ds.h). |
| 233 | * |
| 234 | * You may not want to use a linked list for this -- for example, the memory |
| 235 | * card driver uses an array of dev_link_t pointers, where minor device numbers |
| 236 | * are used to derive the corresponding array index. |
| 237 | */ |
| 238 | static dev_link_t *wl3501_dev_list; |
| 239 | |
| 240 | static inline void wl3501_switch_page(struct wl3501_card *this, u8 page) |
| 241 | { |
| 242 | wl3501_outb(page, this->base_addr + WL3501_NIC_BSS); |
| 243 | } |
| 244 | |
| 245 | /* |
| 246 | * Get Ethernet MAC addresss. |
| 247 | * |
| 248 | * WARNING: We switch to FPAGE0 and switc back again. |
| 249 | * Making sure there is no other WL function beening called by ISR. |
| 250 | */ |
| 251 | static int wl3501_get_flash_mac_addr(struct wl3501_card *this) |
| 252 | { |
| 253 | int base_addr = this->base_addr; |
| 254 | |
| 255 | /* get MAC addr */ |
| 256 | wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */ |
| 257 | wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */ |
| 258 | wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */ |
| 259 | |
| 260 | /* wait for reading EEPROM */ |
| 261 | WL3501_NOPLOOP(100); |
| 262 | this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA); |
| 263 | WL3501_NOPLOOP(100); |
| 264 | this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA); |
| 265 | WL3501_NOPLOOP(100); |
| 266 | this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA); |
| 267 | WL3501_NOPLOOP(100); |
| 268 | this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA); |
| 269 | WL3501_NOPLOOP(100); |
| 270 | this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA); |
| 271 | WL3501_NOPLOOP(100); |
| 272 | this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA); |
| 273 | WL3501_NOPLOOP(100); |
| 274 | this->reg_domain = inb(base_addr + WL3501_NIC_IODPA); |
| 275 | WL3501_NOPLOOP(100); |
| 276 | wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS); |
| 277 | wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL); |
| 278 | wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); |
| 279 | WL3501_NOPLOOP(100); |
| 280 | this->version[0] = inb(base_addr + WL3501_NIC_IODPA); |
| 281 | WL3501_NOPLOOP(100); |
| 282 | this->version[1] = inb(base_addr + WL3501_NIC_IODPA); |
| 283 | /* switch to SRAM Page 0 (for safety) */ |
| 284 | wl3501_switch_page(this, WL3501_BSS_SPAGE0); |
| 285 | |
| 286 | /* The MAC addr should be 00:60:... */ |
| 287 | return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60; |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * wl3501_set_to_wla - Move 'size' bytes from PC to card |
| 292 | * @dest: Card addressing space |
| 293 | * @src: PC addressing space |
| 294 | * @size: Bytes to move |
| 295 | * |
| 296 | * Move 'size' bytes from PC to card. (Shouldn't be interrupted) |
| 297 | */ |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 298 | static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, |
| 299 | int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | { |
| 301 | /* switch to SRAM Page 0 */ |
| 302 | wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 : |
| 303 | WL3501_BSS_SPAGE0); |
| 304 | /* set LMAL and LMAH */ |
| 305 | wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL); |
| 306 | wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH); |
| 307 | |
| 308 | /* rep out to Port A */ |
| 309 | wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size); |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * wl3501_get_from_wla - Move 'size' bytes from card to PC |
| 314 | * @src: Card addressing space |
| 315 | * @dest: PC addressing space |
| 316 | * @size: Bytes to move |
| 317 | * |
| 318 | * Move 'size' bytes from card to PC. (Shouldn't be interrupted) |
| 319 | */ |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 320 | static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, |
| 321 | int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | { |
| 323 | /* switch to SRAM Page 0 */ |
| 324 | wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 : |
| 325 | WL3501_BSS_SPAGE0); |
| 326 | /* set LMAL and LMAH */ |
| 327 | wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL); |
| 328 | wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH); |
| 329 | |
| 330 | /* rep get from Port A */ |
| 331 | insb(this->base_addr + WL3501_NIC_IODPA, dest, size); |
| 332 | } |
| 333 | |
| 334 | /* |
| 335 | * Get/Allocate a free Tx Data Buffer |
| 336 | * |
| 337 | * *--------------*-----------------*----------------------------------* |
| 338 | * | PLCP | MAC Header | DST SRC Data ... | |
| 339 | * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) | |
| 340 | * *--------------*-----------------*----------------------------------* |
| 341 | * \ \- IEEE 802.11 -/ \-------------- len --------------/ |
| 342 | * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/ |
| 343 | * |
| 344 | * Return = Postion in Card |
| 345 | */ |
| 346 | static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len) |
| 347 | { |
| 348 | u16 next, blk_cnt = 0, zero = 0; |
| 349 | u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len; |
| 350 | u16 ret = 0; |
| 351 | |
| 352 | if (full_len > this->tx_buffer_cnt * 254) |
| 353 | goto out; |
| 354 | ret = this->tx_buffer_head; |
| 355 | while (full_len) { |
| 356 | if (full_len < 254) |
| 357 | full_len = 0; |
| 358 | else |
| 359 | full_len -= 254; |
| 360 | wl3501_get_from_wla(this, this->tx_buffer_head, &next, |
| 361 | sizeof(next)); |
| 362 | if (!full_len) |
| 363 | wl3501_set_to_wla(this, this->tx_buffer_head, &zero, |
| 364 | sizeof(zero)); |
| 365 | this->tx_buffer_head = next; |
| 366 | blk_cnt++; |
| 367 | /* if buffer is not enough */ |
| 368 | if (!next && full_len) { |
| 369 | this->tx_buffer_head = ret; |
| 370 | ret = 0; |
| 371 | goto out; |
| 372 | } |
| 373 | } |
| 374 | this->tx_buffer_cnt -= blk_cnt; |
| 375 | out: |
| 376 | return ret; |
| 377 | } |
| 378 | |
| 379 | /* |
| 380 | * Free an allocated Tx Buffer. ptr must be correct position. |
| 381 | */ |
| 382 | static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr) |
| 383 | { |
| 384 | /* check if all space is not free */ |
| 385 | if (!this->tx_buffer_head) |
| 386 | this->tx_buffer_head = ptr; |
| 387 | else |
| 388 | wl3501_set_to_wla(this, this->tx_buffer_tail, |
| 389 | &ptr, sizeof(ptr)); |
| 390 | while (ptr) { |
| 391 | u16 next; |
| 392 | |
| 393 | this->tx_buffer_cnt++; |
| 394 | wl3501_get_from_wla(this, ptr, &next, sizeof(next)); |
| 395 | this->tx_buffer_tail = ptr; |
| 396 | ptr = next; |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | static int wl3501_esbq_req_test(struct wl3501_card *this) |
| 401 | { |
| 402 | u8 tmp; |
| 403 | |
| 404 | wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp)); |
| 405 | return tmp & 0x80; |
| 406 | } |
| 407 | |
| 408 | static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr) |
| 409 | { |
| 410 | u16 tmp = 0; |
| 411 | |
| 412 | wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2); |
| 413 | wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp)); |
| 414 | this->esbq_req_head += 4; |
| 415 | if (this->esbq_req_head >= this->esbq_req_end) |
| 416 | this->esbq_req_head = this->esbq_req_start; |
| 417 | } |
| 418 | |
| 419 | static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size) |
| 420 | { |
| 421 | int rc = -EIO; |
| 422 | |
| 423 | if (wl3501_esbq_req_test(this)) { |
| 424 | u16 ptr = wl3501_get_tx_buffer(this, sig_size); |
| 425 | if (ptr) { |
| 426 | wl3501_set_to_wla(this, ptr, sig, sig_size); |
| 427 | wl3501_esbq_req(this, &ptr); |
| 428 | rc = 0; |
| 429 | } |
| 430 | } |
| 431 | return rc; |
| 432 | } |
| 433 | |
| 434 | static int wl3501_get_mib_value(struct wl3501_card *this, u8 index, |
| 435 | void *bf, int size) |
| 436 | { |
| 437 | struct wl3501_get_req sig = { |
| 438 | .sig_id = WL3501_SIG_GET_REQ, |
| 439 | .mib_attrib = index, |
| 440 | }; |
| 441 | unsigned long flags; |
| 442 | int rc = -EIO; |
| 443 | |
| 444 | spin_lock_irqsave(&this->lock, flags); |
| 445 | if (wl3501_esbq_req_test(this)) { |
| 446 | u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); |
| 447 | if (ptr) { |
| 448 | wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); |
| 449 | wl3501_esbq_req(this, &ptr); |
| 450 | this->sig_get_confirm.mib_status = 255; |
| 451 | spin_unlock_irqrestore(&this->lock, flags); |
| 452 | rc = wait_event_interruptible(this->wait, |
| 453 | this->sig_get_confirm.mib_status != 255); |
| 454 | if (!rc) |
| 455 | memcpy(bf, this->sig_get_confirm.mib_value, |
| 456 | size); |
| 457 | goto out; |
| 458 | } |
| 459 | } |
| 460 | spin_unlock_irqrestore(&this->lock, flags); |
| 461 | out: |
| 462 | return rc; |
| 463 | } |
| 464 | |
| 465 | static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend) |
| 466 | { |
| 467 | struct wl3501_pwr_mgmt_req sig = { |
| 468 | .sig_id = WL3501_SIG_PWR_MGMT_REQ, |
| 469 | .pwr_save = suspend, |
| 470 | .wake_up = !suspend, |
| 471 | .receive_dtims = 10, |
| 472 | }; |
| 473 | unsigned long flags; |
| 474 | int rc = -EIO; |
| 475 | |
| 476 | spin_lock_irqsave(&this->lock, flags); |
| 477 | if (wl3501_esbq_req_test(this)) { |
| 478 | u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); |
| 479 | if (ptr) { |
| 480 | wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); |
| 481 | wl3501_esbq_req(this, &ptr); |
| 482 | this->sig_pwr_mgmt_confirm.status = 255; |
| 483 | spin_unlock_irqrestore(&this->lock, flags); |
| 484 | rc = wait_event_interruptible(this->wait, |
| 485 | this->sig_pwr_mgmt_confirm.status != 255); |
| 486 | printk(KERN_INFO "%s: %s status=%d\n", __FUNCTION__, |
| 487 | suspend ? "suspend" : "resume", |
| 488 | this->sig_pwr_mgmt_confirm.status); |
| 489 | goto out; |
| 490 | } |
| 491 | } |
| 492 | spin_unlock_irqrestore(&this->lock, flags); |
| 493 | out: |
| 494 | return rc; |
| 495 | } |
| 496 | |
| 497 | /** |
| 498 | * wl3501_send_pkt - Send a packet. |
| 499 | * @this - card |
| 500 | * |
| 501 | * Send a packet. |
| 502 | * |
| 503 | * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr, |
| 504 | * data[6] - data[11] is Src MAC Addr) |
| 505 | * Ref: IEEE 802.11 |
| 506 | */ |
| 507 | static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len) |
| 508 | { |
| 509 | u16 bf, sig_bf, next, tmplen, pktlen; |
| 510 | struct wl3501_md_req sig = { |
| 511 | .sig_id = WL3501_SIG_MD_REQ, |
| 512 | }; |
| 513 | u8 *pdata = (char *)data; |
| 514 | int rc = -EIO; |
| 515 | |
| 516 | if (wl3501_esbq_req_test(this)) { |
| 517 | sig_bf = wl3501_get_tx_buffer(this, sizeof(sig)); |
| 518 | rc = -ENOMEM; |
| 519 | if (!sig_bf) /* No free buffer available */ |
| 520 | goto out; |
| 521 | bf = wl3501_get_tx_buffer(this, len + 26 + 24); |
| 522 | if (!bf) { |
| 523 | /* No free buffer available */ |
| 524 | wl3501_free_tx_buffer(this, sig_bf); |
| 525 | goto out; |
| 526 | } |
| 527 | rc = 0; |
| 528 | memcpy(&sig.daddr[0], pdata, 12); |
| 529 | pktlen = len - 12; |
| 530 | pdata += 12; |
| 531 | sig.data = bf; |
| 532 | if (((*pdata) * 256 + (*(pdata + 1))) > 1500) { |
| 533 | u8 addr4[ETH_ALEN] = { |
| 534 | [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00, |
| 535 | }; |
| 536 | |
| 537 | wl3501_set_to_wla(this, bf + 2 + |
| 538 | offsetof(struct wl3501_tx_hdr, addr4), |
| 539 | addr4, sizeof(addr4)); |
| 540 | sig.size = pktlen + 24 + 4 + 6; |
| 541 | if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) { |
| 542 | tmplen = 254 - sizeof(struct wl3501_tx_hdr); |
| 543 | pktlen -= tmplen; |
| 544 | } else { |
| 545 | tmplen = pktlen; |
| 546 | pktlen = 0; |
| 547 | } |
| 548 | wl3501_set_to_wla(this, |
| 549 | bf + 2 + sizeof(struct wl3501_tx_hdr), |
| 550 | pdata, tmplen); |
| 551 | pdata += tmplen; |
| 552 | wl3501_get_from_wla(this, bf, &next, sizeof(next)); |
| 553 | bf = next; |
| 554 | } else { |
| 555 | sig.size = pktlen + 24 + 4 - 2; |
| 556 | pdata += 2; |
| 557 | pktlen -= 2; |
| 558 | if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) { |
| 559 | tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6; |
| 560 | pktlen -= tmplen; |
| 561 | } else { |
| 562 | tmplen = pktlen; |
| 563 | pktlen = 0; |
| 564 | } |
| 565 | wl3501_set_to_wla(this, bf + 2 + |
| 566 | offsetof(struct wl3501_tx_hdr, addr4), |
| 567 | pdata, tmplen); |
| 568 | pdata += tmplen; |
| 569 | wl3501_get_from_wla(this, bf, &next, sizeof(next)); |
| 570 | bf = next; |
| 571 | } |
| 572 | while (pktlen > 0) { |
| 573 | if (pktlen > 254) { |
| 574 | tmplen = 254; |
| 575 | pktlen -= 254; |
| 576 | } else { |
| 577 | tmplen = pktlen; |
| 578 | pktlen = 0; |
| 579 | } |
| 580 | wl3501_set_to_wla(this, bf + 2, pdata, tmplen); |
| 581 | pdata += tmplen; |
| 582 | wl3501_get_from_wla(this, bf, &next, sizeof(next)); |
| 583 | bf = next; |
| 584 | } |
| 585 | wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig)); |
| 586 | wl3501_esbq_req(this, &sig_bf); |
| 587 | } |
| 588 | out: |
| 589 | return rc; |
| 590 | } |
| 591 | |
| 592 | static int wl3501_mgmt_resync(struct wl3501_card *this) |
| 593 | { |
| 594 | struct wl3501_resync_req sig = { |
| 595 | .sig_id = WL3501_SIG_RESYNC_REQ, |
| 596 | }; |
| 597 | |
| 598 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); |
| 599 | } |
| 600 | |
| 601 | static inline int wl3501_fw_bss_type(struct wl3501_card *this) |
| 602 | { |
| 603 | return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA : |
| 604 | WL3501_NET_TYPE_ADHOC; |
| 605 | } |
| 606 | |
| 607 | static inline int wl3501_fw_cap_info(struct wl3501_card *this) |
| 608 | { |
| 609 | return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS : |
| 610 | WL3501_MGMT_CAPABILITY_IBSS; |
| 611 | } |
| 612 | |
| 613 | static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time) |
| 614 | { |
| 615 | struct wl3501_scan_req sig = { |
| 616 | .sig_id = WL3501_SIG_SCAN_REQ, |
| 617 | .scan_type = WL3501_SCAN_TYPE_ACTIVE, |
| 618 | .probe_delay = 0x10, |
| 619 | .min_chan_time = chan_time, |
| 620 | .max_chan_time = chan_time, |
| 621 | .bss_type = wl3501_fw_bss_type(this), |
| 622 | }; |
| 623 | |
| 624 | this->bss_cnt = this->join_sta_bss = 0; |
| 625 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); |
| 626 | } |
| 627 | |
| 628 | static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas) |
| 629 | { |
| 630 | struct wl3501_join_req sig = { |
| 631 | .sig_id = WL3501_SIG_JOIN_REQ, |
| 632 | .timeout = 10, |
| 633 | .ds_pset = { |
| 634 | .el = { |
| 635 | .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, |
| 636 | .len = 1, |
| 637 | }, |
| 638 | .chan = this->chan, |
| 639 | }, |
| 640 | }; |
| 641 | |
| 642 | memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72); |
| 643 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); |
| 644 | } |
| 645 | |
| 646 | static int wl3501_mgmt_start(struct wl3501_card *this) |
| 647 | { |
| 648 | struct wl3501_start_req sig = { |
| 649 | .sig_id = WL3501_SIG_START_REQ, |
| 650 | .beacon_period = 400, |
| 651 | .dtim_period = 1, |
| 652 | .ds_pset = { |
| 653 | .el = { |
| 654 | .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, |
| 655 | .len = 1, |
| 656 | }, |
| 657 | .chan = this->chan, |
| 658 | }, |
| 659 | .bss_basic_rset = { |
| 660 | .el = { |
| 661 | .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, |
| 662 | .len = 2, |
| 663 | }, |
| 664 | .data_rate_labels = { |
| 665 | [0] = IW_MGMT_RATE_LABEL_MANDATORY | |
| 666 | IW_MGMT_RATE_LABEL_1MBIT, |
| 667 | [1] = IW_MGMT_RATE_LABEL_MANDATORY | |
| 668 | IW_MGMT_RATE_LABEL_2MBIT, |
| 669 | }, |
| 670 | }, |
| 671 | .operational_rset = { |
| 672 | .el = { |
| 673 | .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, |
| 674 | .len = 2, |
| 675 | }, |
| 676 | .data_rate_labels = { |
| 677 | [0] = IW_MGMT_RATE_LABEL_MANDATORY | |
| 678 | IW_MGMT_RATE_LABEL_1MBIT, |
| 679 | [1] = IW_MGMT_RATE_LABEL_MANDATORY | |
| 680 | IW_MGMT_RATE_LABEL_2MBIT, |
| 681 | }, |
| 682 | }, |
| 683 | .ibss_pset = { |
| 684 | .el = { |
| 685 | .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET, |
| 686 | .len = 2, |
| 687 | }, |
| 688 | .atim_window = 10, |
| 689 | }, |
| 690 | .bss_type = wl3501_fw_bss_type(this), |
| 691 | .cap_info = wl3501_fw_cap_info(this), |
| 692 | }; |
| 693 | |
| 694 | iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el); |
| 695 | iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el); |
| 696 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); |
| 697 | } |
| 698 | |
| 699 | static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr) |
| 700 | { |
| 701 | u16 i = 0; |
| 702 | int matchflag = 0; |
| 703 | struct wl3501_scan_confirm sig; |
| 704 | |
| 705 | dprintk(3, "entry"); |
| 706 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); |
| 707 | if (sig.status == WL3501_STATUS_SUCCESS) { |
| 708 | dprintk(3, "success"); |
| 709 | if ((this->net_type == IW_MODE_INFRA && |
| 710 | (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) || |
| 711 | (this->net_type == IW_MODE_ADHOC && |
| 712 | (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) || |
| 713 | this->net_type == IW_MODE_AUTO) { |
| 714 | if (!this->essid.el.len) |
| 715 | matchflag = 1; |
| 716 | else if (this->essid.el.len == 3 && |
| 717 | !memcmp(this->essid.essid, "ANY", 3)) |
| 718 | matchflag = 1; |
| 719 | else if (this->essid.el.len != sig.ssid.el.len) |
| 720 | matchflag = 0; |
| 721 | else if (memcmp(this->essid.essid, sig.ssid.essid, |
| 722 | this->essid.el.len)) |
| 723 | matchflag = 0; |
| 724 | else |
| 725 | matchflag = 1; |
| 726 | if (matchflag) { |
| 727 | for (i = 0; i < this->bss_cnt; i++) { |
| 728 | if (!memcmp(this->bss_set[i].bssid, |
| 729 | sig.bssid, ETH_ALEN)) { |
| 730 | matchflag = 0; |
| 731 | break; |
| 732 | } |
| 733 | } |
| 734 | } |
| 735 | if (matchflag && (i < 20)) { |
| 736 | memcpy(&this->bss_set[i].beacon_period, |
| 737 | &sig.beacon_period, 73); |
| 738 | this->bss_cnt++; |
| 739 | this->rssi = sig.rssi; |
| 740 | } |
| 741 | } |
| 742 | } else if (sig.status == WL3501_STATUS_TIMEOUT) { |
| 743 | dprintk(3, "timeout"); |
| 744 | this->join_sta_bss = 0; |
| 745 | for (i = this->join_sta_bss; i < this->bss_cnt; i++) |
| 746 | if (!wl3501_mgmt_join(this, i)) |
| 747 | break; |
| 748 | this->join_sta_bss = i; |
| 749 | if (this->join_sta_bss == this->bss_cnt) { |
| 750 | if (this->net_type == IW_MODE_INFRA) |
| 751 | wl3501_mgmt_scan(this, 100); |
| 752 | else { |
| 753 | this->adhoc_times++; |
| 754 | if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) |
| 755 | wl3501_mgmt_start(this); |
| 756 | else |
| 757 | wl3501_mgmt_scan(this, 100); |
| 758 | } |
| 759 | } |
| 760 | } |
| 761 | } |
| 762 | |
| 763 | /** |
| 764 | * wl3501_block_interrupt - Mask interrupt from SUTRO |
| 765 | * @this - card |
| 766 | * |
| 767 | * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST) |
| 768 | * Return: 1 if interrupt is originally enabled |
| 769 | */ |
| 770 | static int wl3501_block_interrupt(struct wl3501_card *this) |
| 771 | { |
| 772 | u8 old = inb(this->base_addr + WL3501_NIC_GCR); |
| 773 | u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC | |
| 774 | WL3501_GCR_ENECINT)); |
| 775 | |
| 776 | wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); |
| 777 | return old & WL3501_GCR_ENECINT; |
| 778 | } |
| 779 | |
| 780 | /** |
| 781 | * wl3501_unblock_interrupt - Enable interrupt from SUTRO |
| 782 | * @this - card |
| 783 | * |
| 784 | * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST) |
| 785 | * Return: 1 if interrupt is originally enabled |
| 786 | */ |
| 787 | static int wl3501_unblock_interrupt(struct wl3501_card *this) |
| 788 | { |
| 789 | u8 old = inb(this->base_addr + WL3501_NIC_GCR); |
| 790 | u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) | |
| 791 | WL3501_GCR_ENECINT; |
| 792 | |
| 793 | wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); |
| 794 | return old & WL3501_GCR_ENECINT; |
| 795 | } |
| 796 | |
| 797 | /** |
| 798 | * wl3501_receive - Receive data from Receive Queue. |
| 799 | * |
| 800 | * Receive data from Receive Queue. |
| 801 | * |
| 802 | * @this: card |
| 803 | * @bf: address of host |
| 804 | * @size: size of buffer. |
| 805 | */ |
| 806 | static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size) |
| 807 | { |
| 808 | u16 next_addr, next_addr1; |
| 809 | u8 *data = bf + 12; |
| 810 | |
| 811 | size -= 12; |
| 812 | wl3501_get_from_wla(this, this->start_seg + 2, |
| 813 | &next_addr, sizeof(next_addr)); |
| 814 | if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) { |
| 815 | wl3501_get_from_wla(this, |
| 816 | this->start_seg + |
| 817 | sizeof(struct wl3501_rx_hdr), data, |
| 818 | WL3501_BLKSZ - |
| 819 | sizeof(struct wl3501_rx_hdr)); |
| 820 | size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); |
| 821 | data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); |
| 822 | } else { |
| 823 | wl3501_get_from_wla(this, |
| 824 | this->start_seg + |
| 825 | sizeof(struct wl3501_rx_hdr), |
| 826 | data, size); |
| 827 | size = 0; |
| 828 | } |
| 829 | while (size > 0) { |
| 830 | if (size > WL3501_BLKSZ - 5) { |
| 831 | wl3501_get_from_wla(this, next_addr + 5, data, |
| 832 | WL3501_BLKSZ - 5); |
| 833 | size -= WL3501_BLKSZ - 5; |
| 834 | data += WL3501_BLKSZ - 5; |
| 835 | wl3501_get_from_wla(this, next_addr + 2, &next_addr1, |
| 836 | sizeof(next_addr1)); |
| 837 | next_addr = next_addr1; |
| 838 | } else { |
| 839 | wl3501_get_from_wla(this, next_addr + 5, data, size); |
| 840 | size = 0; |
| 841 | } |
| 842 | } |
| 843 | return 0; |
| 844 | } |
| 845 | |
| 846 | static void wl3501_esbq_req_free(struct wl3501_card *this) |
| 847 | { |
| 848 | u8 tmp; |
| 849 | u16 addr; |
| 850 | |
| 851 | if (this->esbq_req_head == this->esbq_req_tail) |
| 852 | goto out; |
| 853 | wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp)); |
| 854 | if (!(tmp & 0x80)) |
| 855 | goto out; |
| 856 | wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr)); |
| 857 | wl3501_free_tx_buffer(this, addr); |
| 858 | this->esbq_req_tail += 4; |
| 859 | if (this->esbq_req_tail >= this->esbq_req_end) |
| 860 | this->esbq_req_tail = this->esbq_req_start; |
| 861 | out: |
| 862 | return; |
| 863 | } |
| 864 | |
| 865 | static int wl3501_esbq_confirm(struct wl3501_card *this) |
| 866 | { |
| 867 | u8 tmp; |
| 868 | |
| 869 | wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); |
| 870 | return tmp & 0x80; |
| 871 | } |
| 872 | |
| 873 | static void wl3501_online(struct net_device *dev) |
| 874 | { |
| 875 | struct wl3501_card *this = dev->priv; |
| 876 | |
| 877 | printk(KERN_INFO "%s: Wireless LAN online. BSSID: " |
| 878 | "%02X %02X %02X %02X %02X %02X\n", dev->name, |
| 879 | this->bssid[0], this->bssid[1], this->bssid[2], |
| 880 | this->bssid[3], this->bssid[4], this->bssid[5]); |
| 881 | netif_wake_queue(dev); |
| 882 | } |
| 883 | |
| 884 | static void wl3501_esbq_confirm_done(struct wl3501_card *this) |
| 885 | { |
| 886 | u8 tmp = 0; |
| 887 | |
| 888 | wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); |
| 889 | this->esbq_confirm += 4; |
| 890 | if (this->esbq_confirm >= this->esbq_confirm_end) |
| 891 | this->esbq_confirm = this->esbq_confirm_start; |
| 892 | } |
| 893 | |
| 894 | static int wl3501_mgmt_auth(struct wl3501_card *this) |
| 895 | { |
| 896 | struct wl3501_auth_req sig = { |
| 897 | .sig_id = WL3501_SIG_AUTH_REQ, |
| 898 | .type = WL3501_SYS_TYPE_OPEN, |
| 899 | .timeout = 1000, |
| 900 | }; |
| 901 | |
| 902 | dprintk(3, "entry"); |
| 903 | memcpy(sig.mac_addr, this->bssid, ETH_ALEN); |
| 904 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); |
| 905 | } |
| 906 | |
| 907 | static int wl3501_mgmt_association(struct wl3501_card *this) |
| 908 | { |
| 909 | struct wl3501_assoc_req sig = { |
| 910 | .sig_id = WL3501_SIG_ASSOC_REQ, |
| 911 | .timeout = 1000, |
| 912 | .listen_interval = 5, |
| 913 | .cap_info = this->cap_info, |
| 914 | }; |
| 915 | |
| 916 | dprintk(3, "entry"); |
| 917 | memcpy(sig.mac_addr, this->bssid, ETH_ALEN); |
| 918 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); |
| 919 | } |
| 920 | |
| 921 | static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr) |
| 922 | { |
| 923 | struct wl3501_card *this = dev->priv; |
| 924 | struct wl3501_join_confirm sig; |
| 925 | |
| 926 | dprintk(3, "entry"); |
| 927 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); |
| 928 | if (sig.status == WL3501_STATUS_SUCCESS) { |
| 929 | if (this->net_type == IW_MODE_INFRA) { |
| 930 | if (this->join_sta_bss < this->bss_cnt) { |
| 931 | const int i = this->join_sta_bss; |
| 932 | memcpy(this->bssid, |
| 933 | this->bss_set[i].bssid, ETH_ALEN); |
| 934 | this->chan = this->bss_set[i].ds_pset.chan; |
| 935 | iw_copy_mgmt_info_element(&this->keep_essid.el, |
| 936 | &this->bss_set[i].ssid.el); |
| 937 | wl3501_mgmt_auth(this); |
| 938 | } |
| 939 | } else { |
| 940 | const int i = this->join_sta_bss; |
| 941 | |
| 942 | memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN); |
| 943 | this->chan = this->bss_set[i].ds_pset.chan; |
| 944 | iw_copy_mgmt_info_element(&this->keep_essid.el, |
| 945 | &this->bss_set[i].ssid.el); |
| 946 | wl3501_online(dev); |
| 947 | } |
| 948 | } else { |
| 949 | int i; |
| 950 | this->join_sta_bss++; |
| 951 | for (i = this->join_sta_bss; i < this->bss_cnt; i++) |
| 952 | if (!wl3501_mgmt_join(this, i)) |
| 953 | break; |
| 954 | this->join_sta_bss = i; |
| 955 | if (this->join_sta_bss == this->bss_cnt) { |
| 956 | if (this->net_type == IW_MODE_INFRA) |
| 957 | wl3501_mgmt_scan(this, 100); |
| 958 | else { |
| 959 | this->adhoc_times++; |
| 960 | if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) |
| 961 | wl3501_mgmt_start(this); |
| 962 | else |
| 963 | wl3501_mgmt_scan(this, 100); |
| 964 | } |
| 965 | } |
| 966 | } |
| 967 | } |
| 968 | |
| 969 | static inline void wl3501_alarm_interrupt(struct net_device *dev, |
| 970 | struct wl3501_card *this) |
| 971 | { |
| 972 | if (this->net_type == IW_MODE_INFRA) { |
| 973 | printk(KERN_INFO "Wireless LAN offline\n"); |
| 974 | netif_stop_queue(dev); |
| 975 | wl3501_mgmt_resync(this); |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | static inline void wl3501_md_confirm_interrupt(struct net_device *dev, |
| 980 | struct wl3501_card *this, |
| 981 | u16 addr) |
| 982 | { |
| 983 | struct wl3501_md_confirm sig; |
| 984 | |
| 985 | dprintk(3, "entry"); |
| 986 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); |
| 987 | wl3501_free_tx_buffer(this, sig.data); |
| 988 | if (netif_queue_stopped(dev)) |
| 989 | netif_wake_queue(dev); |
| 990 | } |
| 991 | |
| 992 | static inline void wl3501_md_ind_interrupt(struct net_device *dev, |
| 993 | struct wl3501_card *this, u16 addr) |
| 994 | { |
| 995 | struct wl3501_md_ind sig; |
| 996 | struct sk_buff *skb; |
| 997 | u8 rssi, addr4[ETH_ALEN]; |
| 998 | u16 pkt_len; |
| 999 | |
| 1000 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); |
| 1001 | this->start_seg = sig.data; |
| 1002 | wl3501_get_from_wla(this, |
| 1003 | sig.data + offsetof(struct wl3501_rx_hdr, rssi), |
| 1004 | &rssi, sizeof(rssi)); |
| 1005 | this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255; |
| 1006 | |
| 1007 | wl3501_get_from_wla(this, |
| 1008 | sig.data + |
| 1009 | offsetof(struct wl3501_rx_hdr, addr4), |
| 1010 | &addr4, sizeof(addr4)); |
| 1011 | if (!(addr4[0] == 0xAA && addr4[1] == 0xAA && |
| 1012 | addr4[2] == 0x03 && addr4[4] == 0x00)) { |
| 1013 | printk(KERN_INFO "Insupported packet type!\n"); |
| 1014 | return; |
| 1015 | } |
| 1016 | pkt_len = sig.size + 12 - 24 - 4 - 6; |
| 1017 | |
| 1018 | skb = dev_alloc_skb(pkt_len + 5); |
| 1019 | |
| 1020 | if (!skb) { |
| 1021 | printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n", |
| 1022 | dev->name, pkt_len); |
| 1023 | this->stats.rx_dropped++; |
| 1024 | } else { |
| 1025 | skb->dev = dev; |
| 1026 | skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */ |
| 1027 | eth_copy_and_sum(skb, (unsigned char *)&sig.daddr, 12, 0); |
| 1028 | wl3501_receive(this, skb->data, pkt_len); |
| 1029 | skb_put(skb, pkt_len); |
| 1030 | skb->protocol = eth_type_trans(skb, dev); |
| 1031 | dev->last_rx = jiffies; |
| 1032 | this->stats.rx_packets++; |
| 1033 | this->stats.rx_bytes += skb->len; |
| 1034 | netif_rx(skb); |
| 1035 | } |
| 1036 | } |
| 1037 | |
| 1038 | static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this, |
| 1039 | u16 addr, void *sig, int size) |
| 1040 | { |
| 1041 | dprintk(3, "entry"); |
| 1042 | wl3501_get_from_wla(this, addr, &this->sig_get_confirm, |
| 1043 | sizeof(this->sig_get_confirm)); |
| 1044 | wake_up(&this->wait); |
| 1045 | } |
| 1046 | |
| 1047 | static inline void wl3501_start_confirm_interrupt(struct net_device *dev, |
| 1048 | struct wl3501_card *this, |
| 1049 | u16 addr) |
| 1050 | { |
| 1051 | struct wl3501_start_confirm sig; |
| 1052 | |
| 1053 | dprintk(3, "entry"); |
| 1054 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); |
| 1055 | if (sig.status == WL3501_STATUS_SUCCESS) |
| 1056 | netif_wake_queue(dev); |
| 1057 | } |
| 1058 | |
| 1059 | static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev, |
| 1060 | u16 addr) |
| 1061 | { |
| 1062 | struct wl3501_card *this = dev->priv; |
| 1063 | struct wl3501_assoc_confirm sig; |
| 1064 | |
| 1065 | dprintk(3, "entry"); |
| 1066 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); |
| 1067 | |
| 1068 | if (sig.status == WL3501_STATUS_SUCCESS) |
| 1069 | wl3501_online(dev); |
| 1070 | } |
| 1071 | |
| 1072 | static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this, |
| 1073 | u16 addr) |
| 1074 | { |
| 1075 | struct wl3501_auth_confirm sig; |
| 1076 | |
| 1077 | dprintk(3, "entry"); |
| 1078 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); |
| 1079 | |
| 1080 | if (sig.status == WL3501_STATUS_SUCCESS) |
| 1081 | wl3501_mgmt_association(this); |
| 1082 | else |
| 1083 | wl3501_mgmt_resync(this); |
| 1084 | } |
| 1085 | |
| 1086 | static inline void wl3501_rx_interrupt(struct net_device *dev) |
| 1087 | { |
| 1088 | int morepkts; |
| 1089 | u16 addr; |
| 1090 | u8 sig_id; |
| 1091 | struct wl3501_card *this = dev->priv; |
| 1092 | |
| 1093 | dprintk(3, "entry"); |
| 1094 | loop: |
| 1095 | morepkts = 0; |
| 1096 | if (!wl3501_esbq_confirm(this)) |
| 1097 | goto free; |
| 1098 | wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr)); |
| 1099 | wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id)); |
| 1100 | |
| 1101 | switch (sig_id) { |
| 1102 | case WL3501_SIG_DEAUTH_IND: |
| 1103 | case WL3501_SIG_DISASSOC_IND: |
| 1104 | case WL3501_SIG_ALARM: |
| 1105 | wl3501_alarm_interrupt(dev, this); |
| 1106 | break; |
| 1107 | case WL3501_SIG_MD_CONFIRM: |
| 1108 | wl3501_md_confirm_interrupt(dev, this, addr); |
| 1109 | break; |
| 1110 | case WL3501_SIG_MD_IND: |
| 1111 | wl3501_md_ind_interrupt(dev, this, addr); |
| 1112 | break; |
| 1113 | case WL3501_SIG_GET_CONFIRM: |
| 1114 | wl3501_get_confirm_interrupt(this, addr, |
| 1115 | &this->sig_get_confirm, |
| 1116 | sizeof(this->sig_get_confirm)); |
| 1117 | break; |
| 1118 | case WL3501_SIG_PWR_MGMT_CONFIRM: |
| 1119 | wl3501_get_confirm_interrupt(this, addr, |
| 1120 | &this->sig_pwr_mgmt_confirm, |
| 1121 | sizeof(this->sig_pwr_mgmt_confirm)); |
| 1122 | break; |
| 1123 | case WL3501_SIG_START_CONFIRM: |
| 1124 | wl3501_start_confirm_interrupt(dev, this, addr); |
| 1125 | break; |
| 1126 | case WL3501_SIG_SCAN_CONFIRM: |
| 1127 | wl3501_mgmt_scan_confirm(this, addr); |
| 1128 | break; |
| 1129 | case WL3501_SIG_JOIN_CONFIRM: |
| 1130 | wl3501_mgmt_join_confirm(dev, addr); |
| 1131 | break; |
| 1132 | case WL3501_SIG_ASSOC_CONFIRM: |
| 1133 | wl3501_assoc_confirm_interrupt(dev, addr); |
| 1134 | break; |
| 1135 | case WL3501_SIG_AUTH_CONFIRM: |
| 1136 | wl3501_auth_confirm_interrupt(this, addr); |
| 1137 | break; |
| 1138 | case WL3501_SIG_RESYNC_CONFIRM: |
| 1139 | wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */ |
| 1140 | break; |
| 1141 | } |
| 1142 | wl3501_esbq_confirm_done(this); |
| 1143 | morepkts = 1; |
| 1144 | /* free request if necessary */ |
| 1145 | free: |
| 1146 | wl3501_esbq_req_free(this); |
| 1147 | if (morepkts) |
| 1148 | goto loop; |
| 1149 | } |
| 1150 | |
| 1151 | static inline void wl3501_ack_interrupt(struct wl3501_card *this) |
| 1152 | { |
| 1153 | wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR); |
| 1154 | } |
| 1155 | |
| 1156 | /** |
| 1157 | * wl3501_interrupt - Hardware interrupt from card. |
| 1158 | * @irq - Interrupt number |
| 1159 | * @dev_id - net_device |
| 1160 | * @regs - registers |
| 1161 | * |
| 1162 | * We must acknowledge the interrupt as soon as possible, and block the |
| 1163 | * interrupt from the same card immediately to prevent re-entry. |
| 1164 | * |
| 1165 | * Before accessing the Control_Status_Block, we must lock SUTRO first. |
| 1166 | * On the other hand, to prevent SUTRO from malfunctioning, we must |
| 1167 | * unlock the SUTRO as soon as possible. |
| 1168 | */ |
| 1169 | static irqreturn_t wl3501_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| 1170 | { |
| 1171 | struct net_device *dev = (struct net_device *)dev_id; |
| 1172 | struct wl3501_card *this; |
| 1173 | int handled = 1; |
| 1174 | |
| 1175 | if (!dev) |
| 1176 | goto unknown; |
| 1177 | this = dev->priv; |
| 1178 | spin_lock(&this->lock); |
| 1179 | wl3501_ack_interrupt(this); |
| 1180 | wl3501_block_interrupt(this); |
| 1181 | wl3501_rx_interrupt(dev); |
| 1182 | wl3501_unblock_interrupt(this); |
| 1183 | spin_unlock(&this->lock); |
| 1184 | out: |
| 1185 | return IRQ_RETVAL(handled); |
| 1186 | unknown: |
| 1187 | handled = 0; |
| 1188 | printk(KERN_ERR "%s: irq %d for unknown device.\n", __FUNCTION__, irq); |
| 1189 | goto out; |
| 1190 | } |
| 1191 | |
| 1192 | static int wl3501_reset_board(struct wl3501_card *this) |
| 1193 | { |
| 1194 | u8 tmp = 0; |
| 1195 | int i, rc = 0; |
| 1196 | |
| 1197 | /* Coreset */ |
| 1198 | wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); |
| 1199 | wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); |
| 1200 | wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); |
| 1201 | |
| 1202 | /* Reset SRAM 0x480 to zero */ |
| 1203 | wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); |
| 1204 | |
| 1205 | /* Start up */ |
| 1206 | wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); |
| 1207 | |
| 1208 | WL3501_NOPLOOP(1024 * 50); |
| 1209 | |
| 1210 | wl3501_unblock_interrupt(this); /* acme: was commented */ |
| 1211 | |
| 1212 | /* Polling Self_Test_Status */ |
| 1213 | for (i = 0; i < 10000; i++) { |
| 1214 | wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp)); |
| 1215 | |
| 1216 | if (tmp == 'W') { |
| 1217 | /* firmware complete all test successfully */ |
| 1218 | tmp = 'A'; |
| 1219 | wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); |
| 1220 | goto out; |
| 1221 | } |
| 1222 | WL3501_NOPLOOP(10); |
| 1223 | } |
| 1224 | printk(KERN_WARNING "%s: failed to reset the board!\n", __FUNCTION__); |
| 1225 | rc = -ENODEV; |
| 1226 | out: |
| 1227 | return rc; |
| 1228 | } |
| 1229 | |
| 1230 | static int wl3501_init_firmware(struct wl3501_card *this) |
| 1231 | { |
| 1232 | u16 ptr, next; |
| 1233 | int rc = wl3501_reset_board(this); |
| 1234 | |
| 1235 | if (rc) |
| 1236 | goto fail; |
| 1237 | this->card_name[0] = '\0'; |
| 1238 | wl3501_get_from_wla(this, 0x1a00, |
| 1239 | this->card_name, sizeof(this->card_name)); |
| 1240 | this->card_name[sizeof(this->card_name) - 1] = '\0'; |
| 1241 | this->firmware_date[0] = '\0'; |
| 1242 | wl3501_get_from_wla(this, 0x1a40, |
| 1243 | this->firmware_date, sizeof(this->firmware_date)); |
| 1244 | this->firmware_date[sizeof(this->firmware_date) - 1] = '\0'; |
| 1245 | /* Switch to SRAM Page 0 */ |
| 1246 | wl3501_switch_page(this, WL3501_BSS_SPAGE0); |
| 1247 | /* Read parameter from card */ |
| 1248 | wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2); |
| 1249 | wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2); |
| 1250 | wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2); |
| 1251 | wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2); |
| 1252 | wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2); |
| 1253 | wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2); |
| 1254 | this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start; |
| 1255 | this->esbq_req_end += this->esbq_req_start; |
| 1256 | this->esbq_confirm = this->esbq_confirm_start; |
| 1257 | this->esbq_confirm_end += this->esbq_confirm_start; |
| 1258 | /* Initial Tx Buffer */ |
| 1259 | this->tx_buffer_cnt = 1; |
| 1260 | ptr = this->tx_buffer_head; |
| 1261 | next = ptr + WL3501_BLKSZ; |
| 1262 | while ((next - this->tx_buffer_head) < this->tx_buffer_size) { |
| 1263 | this->tx_buffer_cnt++; |
| 1264 | wl3501_set_to_wla(this, ptr, &next, sizeof(next)); |
| 1265 | ptr = next; |
| 1266 | next = ptr + WL3501_BLKSZ; |
| 1267 | } |
| 1268 | rc = 0; |
| 1269 | next = 0; |
| 1270 | wl3501_set_to_wla(this, ptr, &next, sizeof(next)); |
| 1271 | this->tx_buffer_tail = ptr; |
| 1272 | out: |
| 1273 | return rc; |
| 1274 | fail: |
| 1275 | printk(KERN_WARNING "%s: failed!\n", __FUNCTION__); |
| 1276 | goto out; |
| 1277 | } |
| 1278 | |
| 1279 | static int wl3501_close(struct net_device *dev) |
| 1280 | { |
| 1281 | struct wl3501_card *this = dev->priv; |
| 1282 | int rc = -ENODEV; |
| 1283 | unsigned long flags; |
| 1284 | dev_link_t *link; |
| 1285 | |
| 1286 | spin_lock_irqsave(&this->lock, flags); |
| 1287 | /* Check if the device is in wl3501_dev_list */ |
| 1288 | for (link = wl3501_dev_list; link; link = link->next) |
| 1289 | if (link->priv == dev) |
| 1290 | break; |
| 1291 | if (!link) |
| 1292 | goto out; |
| 1293 | link->open--; |
| 1294 | |
| 1295 | /* Stop wl3501_hard_start_xmit() from now on */ |
| 1296 | netif_stop_queue(dev); |
| 1297 | wl3501_ack_interrupt(this); |
| 1298 | |
| 1299 | /* Mask interrupts from the SUTRO */ |
| 1300 | wl3501_block_interrupt(this); |
| 1301 | |
| 1302 | rc = 0; |
| 1303 | printk(KERN_INFO "%s: WL3501 closed\n", dev->name); |
| 1304 | out: |
| 1305 | spin_unlock_irqrestore(&this->lock, flags); |
| 1306 | return rc; |
| 1307 | } |
| 1308 | |
| 1309 | /** |
| 1310 | * wl3501_reset - Reset the SUTRO. |
| 1311 | * @dev - network device |
| 1312 | * |
| 1313 | * It is almost the same as wl3501_open(). In fact, we may just wl3501_close() |
| 1314 | * and wl3501_open() again, but I wouldn't like to free_irq() when the driver |
| 1315 | * is running. It seems to be dangerous. |
| 1316 | */ |
| 1317 | static int wl3501_reset(struct net_device *dev) |
| 1318 | { |
| 1319 | struct wl3501_card *this = dev->priv; |
| 1320 | int rc = -ENODEV; |
| 1321 | |
| 1322 | wl3501_block_interrupt(this); |
| 1323 | |
| 1324 | if (wl3501_init_firmware(this)) { |
| 1325 | printk(KERN_WARNING "%s: Can't initialize Firmware!\n", |
| 1326 | dev->name); |
| 1327 | /* Free IRQ, and mark IRQ as unused */ |
| 1328 | free_irq(dev->irq, dev); |
| 1329 | goto out; |
| 1330 | } |
| 1331 | |
| 1332 | /* |
| 1333 | * Queue has to be started only when the Card is Started |
| 1334 | */ |
| 1335 | netif_stop_queue(dev); |
| 1336 | this->adhoc_times = 0; |
| 1337 | wl3501_ack_interrupt(this); |
| 1338 | wl3501_unblock_interrupt(this); |
| 1339 | wl3501_mgmt_scan(this, 100); |
| 1340 | dprintk(1, "%s: device reset", dev->name); |
| 1341 | rc = 0; |
| 1342 | out: |
| 1343 | return rc; |
| 1344 | } |
| 1345 | |
| 1346 | static void wl3501_tx_timeout(struct net_device *dev) |
| 1347 | { |
| 1348 | struct wl3501_card *this = dev->priv; |
| 1349 | struct net_device_stats *stats = &this->stats; |
| 1350 | unsigned long flags; |
| 1351 | int rc; |
| 1352 | |
| 1353 | stats->tx_errors++; |
| 1354 | spin_lock_irqsave(&this->lock, flags); |
| 1355 | rc = wl3501_reset(dev); |
| 1356 | spin_unlock_irqrestore(&this->lock, flags); |
| 1357 | if (rc) |
| 1358 | printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n", |
| 1359 | dev->name, rc); |
| 1360 | else { |
| 1361 | dev->trans_start = jiffies; |
| 1362 | netif_wake_queue(dev); |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | /* |
| 1367 | * Return : 0 - OK |
| 1368 | * 1 - Could not transmit (dev_queue_xmit will queue it) |
| 1369 | * and try to sent it later |
| 1370 | */ |
| 1371 | static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 1372 | { |
| 1373 | int enabled, rc; |
| 1374 | struct wl3501_card *this = dev->priv; |
| 1375 | unsigned long flags; |
| 1376 | |
| 1377 | spin_lock_irqsave(&this->lock, flags); |
| 1378 | enabled = wl3501_block_interrupt(this); |
| 1379 | dev->trans_start = jiffies; |
| 1380 | rc = wl3501_send_pkt(this, skb->data, skb->len); |
| 1381 | if (enabled) |
| 1382 | wl3501_unblock_interrupt(this); |
| 1383 | if (rc) { |
| 1384 | ++this->stats.tx_dropped; |
| 1385 | netif_stop_queue(dev); |
| 1386 | } else { |
| 1387 | ++this->stats.tx_packets; |
| 1388 | this->stats.tx_bytes += skb->len; |
| 1389 | kfree_skb(skb); |
| 1390 | |
| 1391 | if (this->tx_buffer_cnt < 2) |
| 1392 | netif_stop_queue(dev); |
| 1393 | } |
| 1394 | spin_unlock_irqrestore(&this->lock, flags); |
| 1395 | return rc; |
| 1396 | } |
| 1397 | |
| 1398 | static int wl3501_open(struct net_device *dev) |
| 1399 | { |
| 1400 | int rc = -ENODEV; |
| 1401 | struct wl3501_card *this = dev->priv; |
| 1402 | unsigned long flags; |
| 1403 | dev_link_t *link; |
| 1404 | |
| 1405 | spin_lock_irqsave(&this->lock, flags); |
| 1406 | /* Check if the device is in wl3501_dev_list */ |
| 1407 | for (link = wl3501_dev_list; link; link = link->next) |
| 1408 | if (link->priv == dev) |
| 1409 | break; |
| 1410 | if (!DEV_OK(link)) |
| 1411 | goto out; |
| 1412 | netif_device_attach(dev); |
| 1413 | link->open++; |
| 1414 | |
| 1415 | /* Initial WL3501 firmware */ |
| 1416 | dprintk(1, "%s: Initialize WL3501 firmware...", dev->name); |
| 1417 | if (wl3501_init_firmware(this)) |
| 1418 | goto fail; |
| 1419 | /* Initial device variables */ |
| 1420 | this->adhoc_times = 0; |
| 1421 | /* Acknowledge Interrupt, for cleaning last state */ |
| 1422 | wl3501_ack_interrupt(this); |
| 1423 | |
| 1424 | /* Enable interrupt from card after all */ |
| 1425 | wl3501_unblock_interrupt(this); |
| 1426 | wl3501_mgmt_scan(this, 100); |
| 1427 | rc = 0; |
| 1428 | dprintk(1, "%s: WL3501 opened", dev->name); |
| 1429 | printk(KERN_INFO "%s: Card Name: %s\n" |
| 1430 | "%s: Firmware Date: %s\n", |
| 1431 | dev->name, this->card_name, |
| 1432 | dev->name, this->firmware_date); |
| 1433 | out: |
| 1434 | spin_unlock_irqrestore(&this->lock, flags); |
| 1435 | return rc; |
| 1436 | fail: |
| 1437 | printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name); |
| 1438 | goto out; |
| 1439 | } |
| 1440 | |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 1441 | static struct net_device_stats *wl3501_get_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | { |
| 1443 | struct wl3501_card *this = dev->priv; |
| 1444 | |
| 1445 | return &this->stats; |
| 1446 | } |
| 1447 | |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 1448 | static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | { |
| 1450 | struct wl3501_card *this = dev->priv; |
| 1451 | struct iw_statistics *wstats = &this->wstats; |
| 1452 | u32 value; /* size checked: it is u32 */ |
| 1453 | |
| 1454 | memset(wstats, 0, sizeof(*wstats)); |
| 1455 | wstats->status = netif_running(dev); |
| 1456 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT, |
| 1457 | &value, sizeof(value))) |
| 1458 | wstats->discard.code += value; |
| 1459 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT, |
| 1460 | &value, sizeof(value))) |
| 1461 | wstats->discard.code += value; |
| 1462 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT, |
| 1463 | &value, sizeof(value))) |
| 1464 | wstats->discard.code += value; |
| 1465 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT, |
| 1466 | &value, sizeof(value))) |
| 1467 | wstats->discard.retries = value; |
| 1468 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT, |
| 1469 | &value, sizeof(value))) |
| 1470 | wstats->discard.misc += value; |
| 1471 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT, |
| 1472 | &value, sizeof(value))) |
| 1473 | wstats->discard.misc += value; |
| 1474 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT, |
| 1475 | &value, sizeof(value))) |
| 1476 | wstats->discard.misc += value; |
| 1477 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT, |
| 1478 | &value, sizeof(value))) |
| 1479 | wstats->discard.misc += value; |
| 1480 | return wstats; |
| 1481 | } |
| 1482 | |
| 1483 | static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 1484 | { |
| 1485 | strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver)); |
| 1486 | } |
| 1487 | |
| 1488 | static struct ethtool_ops ops = { |
| 1489 | .get_drvinfo = wl3501_get_drvinfo |
| 1490 | }; |
| 1491 | |
| 1492 | /** |
| 1493 | * wl3501_detach - deletes a driver "instance" |
| 1494 | * @link - FILL_IN |
| 1495 | * |
| 1496 | * This deletes a driver "instance". The device is de-registered with Card |
| 1497 | * Services. If it has been released, all local data structures are freed. |
| 1498 | * Otherwise, the structures will be freed when the device is released. |
| 1499 | */ |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1500 | static void wl3501_detach(struct pcmcia_device *p_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | { |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1502 | dev_link_t *link = dev_to_instance(p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | dev_link_t **linkp; |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1504 | struct net_device *dev = link->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | |
| 1506 | /* Locate device structure */ |
| 1507 | for (linkp = &wl3501_dev_list; *linkp; linkp = &(*linkp)->next) |
| 1508 | if (*linkp == link) |
| 1509 | break; |
| 1510 | if (!*linkp) |
| 1511 | goto out; |
| 1512 | |
| 1513 | /* If the device is currently configured and active, we won't actually |
| 1514 | * delete it yet. Instead, it is marked so that when the release() |
| 1515 | * function is called, that will trigger a proper detach(). */ |
| 1516 | |
| 1517 | if (link->state & DEV_CONFIG) { |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1518 | while (link->open > 0) |
| 1519 | wl3501_close(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1521 | netif_device_detach(dev); |
| 1522 | wl3501_release(link); |
| 1523 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | |
| 1525 | /* Unlink device structure, free pieces */ |
| 1526 | *linkp = link->next; |
| 1527 | |
| 1528 | if (link->priv) |
| 1529 | free_netdev(link->priv); |
| 1530 | kfree(link); |
| 1531 | out: |
| 1532 | return; |
| 1533 | } |
| 1534 | |
| 1535 | static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info, |
| 1536 | union iwreq_data *wrqu, char *extra) |
| 1537 | { |
| 1538 | strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name)); |
| 1539 | return 0; |
| 1540 | } |
| 1541 | |
| 1542 | static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info, |
| 1543 | union iwreq_data *wrqu, char *extra) |
| 1544 | { |
| 1545 | struct wl3501_card *this = dev->priv; |
| 1546 | int channel = wrqu->freq.m; |
| 1547 | int rc = -EINVAL; |
| 1548 | |
| 1549 | if (iw_valid_channel(this->reg_domain, channel)) { |
| 1550 | this->chan = channel; |
| 1551 | rc = wl3501_reset(dev); |
| 1552 | } |
| 1553 | return rc; |
| 1554 | } |
| 1555 | |
| 1556 | static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info, |
| 1557 | union iwreq_data *wrqu, char *extra) |
| 1558 | { |
| 1559 | struct wl3501_card *this = dev->priv; |
| 1560 | |
| 1561 | wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000; |
| 1562 | wrqu->freq.e = 1; |
| 1563 | return 0; |
| 1564 | } |
| 1565 | |
| 1566 | static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info, |
| 1567 | union iwreq_data *wrqu, char *extra) |
| 1568 | { |
| 1569 | int rc = -EINVAL; |
| 1570 | |
| 1571 | if (wrqu->mode == IW_MODE_INFRA || |
| 1572 | wrqu->mode == IW_MODE_ADHOC || |
| 1573 | wrqu->mode == IW_MODE_AUTO) { |
| 1574 | struct wl3501_card *this = dev->priv; |
| 1575 | |
| 1576 | this->net_type = wrqu->mode; |
| 1577 | rc = wl3501_reset(dev); |
| 1578 | } |
| 1579 | return rc; |
| 1580 | } |
| 1581 | |
| 1582 | static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info, |
| 1583 | union iwreq_data *wrqu, char *extra) |
| 1584 | { |
| 1585 | struct wl3501_card *this = dev->priv; |
| 1586 | |
| 1587 | wrqu->mode = this->net_type; |
| 1588 | return 0; |
| 1589 | } |
| 1590 | |
| 1591 | static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info, |
| 1592 | union iwreq_data *wrqu, char *extra) |
| 1593 | { |
| 1594 | struct wl3501_card *this = dev->priv; |
| 1595 | |
| 1596 | wrqu->sens.value = this->rssi; |
| 1597 | wrqu->sens.disabled = !wrqu->sens.value; |
| 1598 | wrqu->sens.fixed = 1; |
| 1599 | return 0; |
| 1600 | } |
| 1601 | |
| 1602 | static int wl3501_get_range(struct net_device *dev, |
| 1603 | struct iw_request_info *info, |
| 1604 | union iwreq_data *wrqu, char *extra) |
| 1605 | { |
| 1606 | struct iw_range *range = (struct iw_range *)extra; |
| 1607 | |
| 1608 | /* Set the length (very important for backward compatibility) */ |
| 1609 | wrqu->data.length = sizeof(*range); |
| 1610 | |
| 1611 | /* Set all the info we don't care or don't know about to zero */ |
| 1612 | memset(range, 0, sizeof(*range)); |
| 1613 | |
| 1614 | /* Set the Wireless Extension versions */ |
| 1615 | range->we_version_compiled = WIRELESS_EXT; |
| 1616 | range->we_version_source = 1; |
| 1617 | range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */ |
| 1618 | /* FIXME: study the code to fill in more fields... */ |
| 1619 | return 0; |
| 1620 | } |
| 1621 | |
| 1622 | static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info, |
| 1623 | union iwreq_data *wrqu, char *extra) |
| 1624 | { |
| 1625 | struct wl3501_card *this = dev->priv; |
| 1626 | static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 }; |
| 1627 | int rc = -EINVAL; |
| 1628 | |
| 1629 | /* FIXME: we support other ARPHRDs...*/ |
| 1630 | if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) |
| 1631 | goto out; |
| 1632 | if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) { |
| 1633 | /* FIXME: rescan? */ |
| 1634 | } else |
| 1635 | memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); |
| 1636 | /* FIXME: rescan? deassoc & scan? */ |
| 1637 | rc = 0; |
| 1638 | out: |
| 1639 | return rc; |
| 1640 | } |
| 1641 | |
| 1642 | static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info, |
| 1643 | union iwreq_data *wrqu, char *extra) |
| 1644 | { |
| 1645 | struct wl3501_card *this = dev->priv; |
| 1646 | |
| 1647 | wrqu->ap_addr.sa_family = ARPHRD_ETHER; |
| 1648 | memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN); |
| 1649 | return 0; |
| 1650 | } |
| 1651 | |
| 1652 | static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info, |
| 1653 | union iwreq_data *wrqu, char *extra) |
| 1654 | { |
| 1655 | /* |
| 1656 | * FIXME: trigger scanning with a reset, yes, I'm lazy |
| 1657 | */ |
| 1658 | return wl3501_reset(dev); |
| 1659 | } |
| 1660 | |
| 1661 | static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info, |
| 1662 | union iwreq_data *wrqu, char *extra) |
| 1663 | { |
| 1664 | struct wl3501_card *this = dev->priv; |
| 1665 | int i; |
| 1666 | char *current_ev = extra; |
| 1667 | struct iw_event iwe; |
| 1668 | |
| 1669 | for (i = 0; i < this->bss_cnt; ++i) { |
| 1670 | iwe.cmd = SIOCGIWAP; |
| 1671 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; |
| 1672 | memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN); |
| 1673 | current_ev = iwe_stream_add_event(current_ev, |
| 1674 | extra + IW_SCAN_MAX_DATA, |
| 1675 | &iwe, IW_EV_ADDR_LEN); |
| 1676 | iwe.cmd = SIOCGIWESSID; |
| 1677 | iwe.u.data.flags = 1; |
| 1678 | iwe.u.data.length = this->bss_set[i].ssid.el.len; |
| 1679 | current_ev = iwe_stream_add_point(current_ev, |
| 1680 | extra + IW_SCAN_MAX_DATA, |
| 1681 | &iwe, |
| 1682 | this->bss_set[i].ssid.essid); |
| 1683 | iwe.cmd = SIOCGIWMODE; |
| 1684 | iwe.u.mode = this->bss_set[i].bss_type; |
| 1685 | current_ev = iwe_stream_add_event(current_ev, |
| 1686 | extra + IW_SCAN_MAX_DATA, |
| 1687 | &iwe, IW_EV_UINT_LEN); |
| 1688 | iwe.cmd = SIOCGIWFREQ; |
| 1689 | iwe.u.freq.m = this->bss_set[i].ds_pset.chan; |
| 1690 | iwe.u.freq.e = 0; |
| 1691 | current_ev = iwe_stream_add_event(current_ev, |
| 1692 | extra + IW_SCAN_MAX_DATA, |
| 1693 | &iwe, IW_EV_FREQ_LEN); |
| 1694 | iwe.cmd = SIOCGIWENCODE; |
| 1695 | if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY) |
| 1696 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; |
| 1697 | else |
| 1698 | iwe.u.data.flags = IW_ENCODE_DISABLED; |
| 1699 | iwe.u.data.length = 0; |
| 1700 | current_ev = iwe_stream_add_point(current_ev, |
| 1701 | extra + IW_SCAN_MAX_DATA, |
| 1702 | &iwe, NULL); |
| 1703 | } |
| 1704 | /* Length of data */ |
| 1705 | wrqu->data.length = (current_ev - extra); |
| 1706 | wrqu->data.flags = 0; /* FIXME: set properly these flags */ |
| 1707 | return 0; |
| 1708 | } |
| 1709 | |
| 1710 | static int wl3501_set_essid(struct net_device *dev, |
| 1711 | struct iw_request_info *info, |
| 1712 | union iwreq_data *wrqu, char *extra) |
| 1713 | { |
| 1714 | struct wl3501_card *this = dev->priv; |
| 1715 | |
| 1716 | if (wrqu->data.flags) { |
| 1717 | iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, |
| 1718 | &this->essid.el, |
| 1719 | extra, wrqu->data.length); |
| 1720 | } else { /* We accept any ESSID */ |
| 1721 | iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, |
| 1722 | &this->essid.el, "ANY", 3); |
| 1723 | } |
| 1724 | return wl3501_reset(dev); |
| 1725 | } |
| 1726 | |
| 1727 | static int wl3501_get_essid(struct net_device *dev, |
| 1728 | struct iw_request_info *info, |
| 1729 | union iwreq_data *wrqu, char *extra) |
| 1730 | { |
| 1731 | struct wl3501_card *this = dev->priv; |
| 1732 | unsigned long flags; |
| 1733 | |
| 1734 | spin_lock_irqsave(&this->lock, flags); |
| 1735 | wrqu->essid.flags = 1; |
| 1736 | wrqu->essid.length = this->essid.el.len; |
| 1737 | memcpy(extra, this->essid.essid, this->essid.el.len); |
| 1738 | spin_unlock_irqrestore(&this->lock, flags); |
| 1739 | return 0; |
| 1740 | } |
| 1741 | |
| 1742 | static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info, |
| 1743 | union iwreq_data *wrqu, char *extra) |
| 1744 | { |
| 1745 | struct wl3501_card *this = dev->priv; |
| 1746 | |
| 1747 | if (wrqu->data.length > sizeof(this->nick)) |
| 1748 | return -E2BIG; |
| 1749 | strlcpy(this->nick, extra, wrqu->data.length); |
| 1750 | return 0; |
| 1751 | } |
| 1752 | |
| 1753 | static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info, |
| 1754 | union iwreq_data *wrqu, char *extra) |
| 1755 | { |
| 1756 | struct wl3501_card *this = dev->priv; |
| 1757 | |
| 1758 | strlcpy(extra, this->nick, 32); |
| 1759 | wrqu->data.length = strlen(extra); |
| 1760 | return 0; |
| 1761 | } |
| 1762 | |
| 1763 | static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info, |
| 1764 | union iwreq_data *wrqu, char *extra) |
| 1765 | { |
| 1766 | /* |
| 1767 | * FIXME: have to see from where to get this info, perhaps this card |
| 1768 | * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most |
| 1769 | * common with the Planet Access Points. -acme |
| 1770 | */ |
| 1771 | wrqu->bitrate.value = 2000000; |
| 1772 | wrqu->bitrate.fixed = 1; |
| 1773 | return 0; |
| 1774 | } |
| 1775 | |
| 1776 | static int wl3501_get_rts_threshold(struct net_device *dev, |
| 1777 | struct iw_request_info *info, |
| 1778 | union iwreq_data *wrqu, char *extra) |
| 1779 | { |
| 1780 | u16 threshold; /* size checked: it is u16 */ |
| 1781 | struct wl3501_card *this = dev->priv; |
| 1782 | int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD, |
| 1783 | &threshold, sizeof(threshold)); |
| 1784 | if (!rc) { |
| 1785 | wrqu->rts.value = threshold; |
| 1786 | wrqu->rts.disabled = threshold >= 2347; |
| 1787 | wrqu->rts.fixed = 1; |
| 1788 | } |
| 1789 | return rc; |
| 1790 | } |
| 1791 | |
| 1792 | static int wl3501_get_frag_threshold(struct net_device *dev, |
| 1793 | struct iw_request_info *info, |
| 1794 | union iwreq_data *wrqu, char *extra) |
| 1795 | { |
| 1796 | u16 threshold; /* size checked: it is u16 */ |
| 1797 | struct wl3501_card *this = dev->priv; |
| 1798 | int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD, |
| 1799 | &threshold, sizeof(threshold)); |
| 1800 | if (!rc) { |
| 1801 | wrqu->frag.value = threshold; |
| 1802 | wrqu->frag.disabled = threshold >= 2346; |
| 1803 | wrqu->frag.fixed = 1; |
| 1804 | } |
| 1805 | return rc; |
| 1806 | } |
| 1807 | |
| 1808 | static int wl3501_get_txpow(struct net_device *dev, |
| 1809 | struct iw_request_info *info, |
| 1810 | union iwreq_data *wrqu, char *extra) |
| 1811 | { |
| 1812 | u16 txpow; |
| 1813 | struct wl3501_card *this = dev->priv; |
| 1814 | int rc = wl3501_get_mib_value(this, |
| 1815 | WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL, |
| 1816 | &txpow, sizeof(txpow)); |
| 1817 | if (!rc) { |
| 1818 | wrqu->txpower.value = txpow; |
| 1819 | wrqu->txpower.disabled = 0; |
| 1820 | /* |
| 1821 | * From the MIB values I think this can be configurable, |
| 1822 | * as it lists several tx power levels -acme |
| 1823 | */ |
| 1824 | wrqu->txpower.fixed = 0; |
| 1825 | wrqu->txpower.flags = IW_TXPOW_MWATT; |
| 1826 | } |
| 1827 | return rc; |
| 1828 | } |
| 1829 | |
| 1830 | static int wl3501_get_retry(struct net_device *dev, |
| 1831 | struct iw_request_info *info, |
| 1832 | union iwreq_data *wrqu, char *extra) |
| 1833 | { |
| 1834 | u8 retry; /* size checked: it is u8 */ |
| 1835 | struct wl3501_card *this = dev->priv; |
| 1836 | int rc = wl3501_get_mib_value(this, |
| 1837 | WL3501_MIB_ATTR_LONG_RETRY_LIMIT, |
| 1838 | &retry, sizeof(retry)); |
| 1839 | if (rc) |
| 1840 | goto out; |
| 1841 | if (wrqu->retry.flags & IW_RETRY_MAX) { |
| 1842 | wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX; |
| 1843 | goto set_value; |
| 1844 | } |
| 1845 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT, |
| 1846 | &retry, sizeof(retry)); |
| 1847 | if (rc) |
| 1848 | goto out; |
| 1849 | wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN; |
| 1850 | set_value: |
| 1851 | wrqu->retry.value = retry; |
| 1852 | wrqu->retry.disabled = 0; |
| 1853 | out: |
| 1854 | return rc; |
| 1855 | } |
| 1856 | |
| 1857 | static int wl3501_get_encode(struct net_device *dev, |
| 1858 | struct iw_request_info *info, |
| 1859 | union iwreq_data *wrqu, char *extra) |
| 1860 | { |
| 1861 | u8 implemented, restricted, keys[100], len_keys, tocopy; |
| 1862 | struct wl3501_card *this = dev->priv; |
| 1863 | int rc = wl3501_get_mib_value(this, |
| 1864 | WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED, |
| 1865 | &implemented, sizeof(implemented)); |
| 1866 | if (rc) |
| 1867 | goto out; |
| 1868 | if (!implemented) { |
| 1869 | wrqu->encoding.flags = IW_ENCODE_DISABLED; |
| 1870 | goto out; |
| 1871 | } |
| 1872 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED, |
| 1873 | &restricted, sizeof(restricted)); |
| 1874 | if (rc) |
| 1875 | goto out; |
| 1876 | wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED : |
| 1877 | IW_ENCODE_OPEN; |
| 1878 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN, |
| 1879 | &len_keys, sizeof(len_keys)); |
| 1880 | if (rc) |
| 1881 | goto out; |
| 1882 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS, |
| 1883 | keys, len_keys); |
| 1884 | if (rc) |
| 1885 | goto out; |
| 1886 | tocopy = min_t(u8, len_keys, wrqu->encoding.length); |
| 1887 | tocopy = min_t(u8, tocopy, 100); |
| 1888 | wrqu->encoding.length = tocopy; |
| 1889 | memset(extra, 0, tocopy); |
| 1890 | memcpy(extra, keys, tocopy); |
| 1891 | out: |
| 1892 | return rc; |
| 1893 | } |
| 1894 | |
| 1895 | static int wl3501_get_power(struct net_device *dev, |
| 1896 | struct iw_request_info *info, |
| 1897 | union iwreq_data *wrqu, char *extra) |
| 1898 | { |
| 1899 | u8 pwr_state; |
| 1900 | struct wl3501_card *this = dev->priv; |
| 1901 | int rc = wl3501_get_mib_value(this, |
| 1902 | WL3501_MIB_ATTR_CURRENT_PWR_STATE, |
| 1903 | &pwr_state, sizeof(pwr_state)); |
| 1904 | if (rc) |
| 1905 | goto out; |
| 1906 | wrqu->power.disabled = !pwr_state; |
| 1907 | wrqu->power.flags = IW_POWER_ON; |
| 1908 | out: |
| 1909 | return rc; |
| 1910 | } |
| 1911 | |
| 1912 | static const iw_handler wl3501_handler[] = { |
| 1913 | [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name, |
| 1914 | [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq, |
| 1915 | [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq, |
| 1916 | [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode, |
| 1917 | [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode, |
| 1918 | [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens, |
| 1919 | [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range, |
| 1920 | [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy, |
| 1921 | [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy, |
| 1922 | [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy, |
| 1923 | [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy, |
| 1924 | [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap, |
| 1925 | [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap, |
| 1926 | [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan, |
| 1927 | [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan, |
| 1928 | [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid, |
| 1929 | [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid, |
| 1930 | [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick, |
| 1931 | [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick, |
| 1932 | [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate, |
| 1933 | [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold, |
| 1934 | [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold, |
| 1935 | [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow, |
| 1936 | [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry, |
| 1937 | [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode, |
| 1938 | [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power, |
| 1939 | }; |
| 1940 | |
| 1941 | static const struct iw_handler_def wl3501_handler_def = { |
| 1942 | .num_standard = sizeof(wl3501_handler) / sizeof(iw_handler), |
| 1943 | .standard = (iw_handler *)wl3501_handler, |
Jean Tourrilhes | 00b309f | 2005-09-02 11:37:38 -0700 | [diff] [blame] | 1944 | .get_wireless_stats = wl3501_get_wireless_stats, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1945 | }; |
| 1946 | |
| 1947 | /** |
| 1948 | * wl3501_attach - creates an "instance" of the driver |
| 1949 | * |
| 1950 | * Creates an "instance" of the driver, allocating local data structures for |
| 1951 | * one device. The device is registered with Card Services. |
| 1952 | * |
| 1953 | * The dev_link structure is initialized, but we don't actually configure the |
| 1954 | * card at this point -- we wait until we receive a card insertion event. |
| 1955 | */ |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1956 | static int wl3501_attach(struct pcmcia_device *p_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1957 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1958 | dev_link_t *link; |
| 1959 | struct net_device *dev; |
Jean Tourrilhes | 00b309f | 2005-09-02 11:37:38 -0700 | [diff] [blame] | 1960 | struct wl3501_card *this; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1961 | |
| 1962 | /* Initialize the dev_link_t structure */ |
Panagiotis Issaris | b69a3aa | 2005-11-08 00:03:15 +0100 | [diff] [blame] | 1963 | link = kzalloc(sizeof(*link), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1964 | if (!link) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1965 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1966 | |
| 1967 | /* The io structure describes IO port mapping */ |
| 1968 | link->io.NumPorts1 = 16; |
| 1969 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 1970 | link->io.IOAddrLines = 5; |
| 1971 | |
| 1972 | /* Interrupt setup */ |
| 1973 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| 1974 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 1975 | link->irq.Handler = wl3501_interrupt; |
| 1976 | |
| 1977 | /* General socket configuration */ |
| 1978 | link->conf.Attributes = CONF_ENABLE_IRQ; |
| 1979 | link->conf.Vcc = 50; |
| 1980 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 1981 | link->conf.ConfigIndex = 1; |
| 1982 | link->conf.Present = PRESENT_OPTION; |
| 1983 | |
| 1984 | dev = alloc_etherdev(sizeof(struct wl3501_card)); |
| 1985 | if (!dev) |
| 1986 | goto out_link; |
| 1987 | dev->open = wl3501_open; |
| 1988 | dev->stop = wl3501_close; |
| 1989 | dev->hard_start_xmit = wl3501_hard_start_xmit; |
| 1990 | dev->tx_timeout = wl3501_tx_timeout; |
| 1991 | dev->watchdog_timeo = 5 * HZ; |
| 1992 | dev->get_stats = wl3501_get_stats; |
Jean Tourrilhes | 00b309f | 2005-09-02 11:37:38 -0700 | [diff] [blame] | 1993 | this = dev->priv; |
| 1994 | this->wireless_data.spy_data = &this->spy_data; |
| 1995 | dev->wireless_data = &this->wireless_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1996 | dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def; |
| 1997 | SET_ETHTOOL_OPS(dev, &ops); |
| 1998 | netif_stop_queue(dev); |
| 1999 | link->priv = link->irq.Instance = dev; |
| 2000 | |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 2001 | link->handle = p_dev; |
| 2002 | p_dev->instance = link; |
| 2003 | |
| 2004 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| 2005 | wl3501_config(link); |
| 2006 | |
| 2007 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2008 | out_link: |
| 2009 | kfree(link); |
| 2010 | link = NULL; |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 2011 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2012 | } |
| 2013 | |
| 2014 | #define CS_CHECK(fn, ret) \ |
| 2015 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| 2016 | |
| 2017 | /** |
| 2018 | * wl3501_config - configure the PCMCIA socket and make eth device available |
| 2019 | * @link - FILL_IN |
| 2020 | * |
| 2021 | * wl3501_config() is scheduled to run after a CARD_INSERTION event is |
| 2022 | * received, to configure the PCMCIA socket, and to make the ethernet device |
| 2023 | * available to the system. |
| 2024 | */ |
| 2025 | static void wl3501_config(dev_link_t *link) |
| 2026 | { |
| 2027 | tuple_t tuple; |
| 2028 | cisparse_t parse; |
| 2029 | client_handle_t handle = link->handle; |
| 2030 | struct net_device *dev = link->priv; |
| 2031 | int i = 0, j, last_fn, last_ret; |
| 2032 | unsigned char bf[64]; |
| 2033 | struct wl3501_card *this; |
| 2034 | |
| 2035 | /* This reads the card's CONFIG tuple to find its config registers. */ |
| 2036 | tuple.Attributes = 0; |
| 2037 | tuple.DesiredTuple = CISTPL_CONFIG; |
| 2038 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| 2039 | tuple.TupleData = bf; |
| 2040 | tuple.TupleDataMax = sizeof(bf); |
| 2041 | tuple.TupleOffset = 0; |
| 2042 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); |
| 2043 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); |
| 2044 | link->conf.ConfigBase = parse.config.base; |
| 2045 | link->conf.Present = parse.config.rmask[0]; |
| 2046 | |
| 2047 | /* Configure card */ |
| 2048 | link->state |= DEV_CONFIG; |
| 2049 | |
| 2050 | /* Try allocating IO ports. This tries a few fixed addresses. If you |
| 2051 | * want, you can also read the card's config table to pick addresses -- |
| 2052 | * see the serial driver for an example. */ |
| 2053 | |
| 2054 | for (j = 0x280; j < 0x400; j += 0x20) { |
| 2055 | /* The '^0x300' is so that we probe 0x300-0x3ff first, then |
| 2056 | * 0x200-0x2ff, and so on, because this seems safer */ |
| 2057 | link->io.BasePort1 = j; |
| 2058 | link->io.BasePort2 = link->io.BasePort1 + 0x10; |
| 2059 | i = pcmcia_request_io(link->handle, &link->io); |
| 2060 | if (i == CS_SUCCESS) |
| 2061 | break; |
| 2062 | } |
| 2063 | if (i != CS_SUCCESS) { |
| 2064 | cs_error(link->handle, RequestIO, i); |
| 2065 | goto failed; |
| 2066 | } |
| 2067 | |
| 2068 | /* Now allocate an interrupt line. Note that this does not actually |
| 2069 | * assign a handler to the interrupt. */ |
| 2070 | |
| 2071 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); |
| 2072 | |
| 2073 | /* This actually configures the PCMCIA socket -- setting up the I/O |
| 2074 | * windows and the interrupt mapping. */ |
| 2075 | |
| 2076 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf)); |
| 2077 | |
| 2078 | dev->irq = link->irq.AssignedIRQ; |
| 2079 | dev->base_addr = link->io.BasePort1; |
| 2080 | SET_NETDEV_DEV(dev, &handle_to_dev(handle)); |
| 2081 | if (register_netdev(dev)) { |
| 2082 | printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n"); |
| 2083 | goto failed; |
| 2084 | } |
| 2085 | |
| 2086 | SET_MODULE_OWNER(dev); |
| 2087 | |
| 2088 | this = dev->priv; |
| 2089 | /* |
| 2090 | * At this point, the dev_node_t structure(s) should be initialized and |
| 2091 | * arranged in a linked list at link->dev. |
| 2092 | */ |
| 2093 | link->dev = &this->node; |
| 2094 | link->state &= ~DEV_CONFIG_PENDING; |
| 2095 | |
| 2096 | this->base_addr = dev->base_addr; |
| 2097 | |
| 2098 | if (!wl3501_get_flash_mac_addr(this)) { |
| 2099 | printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n", |
| 2100 | dev->name); |
| 2101 | goto failed; |
| 2102 | } |
| 2103 | strcpy(this->node.dev_name, dev->name); |
| 2104 | |
| 2105 | /* print probe information */ |
| 2106 | printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, MAC addr in flash ROM:", |
| 2107 | dev->name, this->base_addr, (int)dev->irq); |
| 2108 | for (i = 0; i < 6; i++) { |
| 2109 | dev->dev_addr[i] = ((char *)&this->mac_addr)[i]; |
| 2110 | printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]); |
| 2111 | } |
| 2112 | printk("\n"); |
| 2113 | /* |
| 2114 | * Initialize card parameters - added by jss |
| 2115 | */ |
| 2116 | this->net_type = IW_MODE_INFRA; |
| 2117 | this->bss_cnt = 0; |
| 2118 | this->join_sta_bss = 0; |
| 2119 | this->adhoc_times = 0; |
| 2120 | iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, |
| 2121 | "ANY", 3); |
| 2122 | this->card_name[0] = '\0'; |
| 2123 | this->firmware_date[0] = '\0'; |
| 2124 | this->rssi = 255; |
| 2125 | this->chan = iw_default_channel(this->reg_domain); |
| 2126 | strlcpy(this->nick, "Planet WL3501", sizeof(this->nick)); |
| 2127 | spin_lock_init(&this->lock); |
| 2128 | init_waitqueue_head(&this->wait); |
| 2129 | netif_start_queue(dev); |
| 2130 | goto out; |
| 2131 | cs_failed: |
| 2132 | cs_error(link->handle, last_fn, last_ret); |
| 2133 | failed: |
| 2134 | wl3501_release(link); |
| 2135 | out: |
| 2136 | return; |
| 2137 | } |
| 2138 | |
| 2139 | /** |
| 2140 | * wl3501_release - unregister the net, release PCMCIA configuration |
| 2141 | * @arg - link |
| 2142 | * |
| 2143 | * After a card is removed, wl3501_release() will unregister the net device, |
| 2144 | * and release the PCMCIA configuration. If the device is still open, this |
| 2145 | * will be postponed until it is closed. |
| 2146 | */ |
| 2147 | static void wl3501_release(dev_link_t *link) |
| 2148 | { |
| 2149 | struct net_device *dev = link->priv; |
| 2150 | |
| 2151 | /* Unlink the device chain */ |
| 2152 | if (link->dev) { |
| 2153 | unregister_netdev(dev); |
| 2154 | link->dev = NULL; |
| 2155 | } |
| 2156 | |
| 2157 | /* Don't bother checking to see if these succeed or not */ |
| 2158 | pcmcia_release_configuration(link->handle); |
| 2159 | pcmcia_release_io(link->handle, &link->io); |
| 2160 | pcmcia_release_irq(link->handle, &link->irq); |
| 2161 | link->state &= ~DEV_CONFIG; |
| 2162 | } |
| 2163 | |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 2164 | static int wl3501_suspend(struct pcmcia_device *p_dev) |
| 2165 | { |
| 2166 | dev_link_t *link = dev_to_instance(p_dev); |
| 2167 | struct net_device *dev = link->priv; |
| 2168 | |
| 2169 | link->state |= DEV_SUSPEND; |
| 2170 | |
| 2171 | wl3501_pwr_mgmt(dev->priv, WL3501_SUSPEND); |
| 2172 | if (link->state & DEV_CONFIG) { |
| 2173 | if (link->open) |
| 2174 | netif_device_detach(dev); |
| 2175 | pcmcia_release_configuration(link->handle); |
| 2176 | } |
| 2177 | |
| 2178 | return 0; |
| 2179 | } |
| 2180 | |
| 2181 | static int wl3501_resume(struct pcmcia_device *p_dev) |
| 2182 | { |
| 2183 | dev_link_t *link = dev_to_instance(p_dev); |
| 2184 | struct net_device *dev = link->priv; |
| 2185 | |
| 2186 | wl3501_pwr_mgmt(dev->priv, WL3501_RESUME); |
| 2187 | if (link->state & DEV_CONFIG) { |
| 2188 | pcmcia_request_configuration(link->handle, &link->conf); |
| 2189 | if (link->open) { |
| 2190 | wl3501_reset(dev); |
| 2191 | netif_device_attach(dev); |
| 2192 | } |
| 2193 | } |
| 2194 | |
| 2195 | return 0; |
| 2196 | } |
| 2197 | |
| 2198 | |
Dominik Brodowski | 77b73f9 | 2005-06-27 16:28:41 -0700 | [diff] [blame] | 2199 | static struct pcmcia_device_id wl3501_ids[] = { |
| 2200 | PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001), |
| 2201 | PCMCIA_DEVICE_NULL |
| 2202 | }; |
| 2203 | MODULE_DEVICE_TABLE(pcmcia, wl3501_ids); |
| 2204 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2205 | static struct pcmcia_driver wl3501_driver = { |
Dominik Brodowski | 1e212f3 | 2005-07-07 17:59:00 -0700 | [diff] [blame] | 2206 | .owner = THIS_MODULE, |
| 2207 | .drv = { |
| 2208 | .name = "wl3501_cs", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2209 | }, |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 2210 | .probe = wl3501_attach, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 2211 | .remove = wl3501_detach, |
Dominik Brodowski | 77b73f9 | 2005-06-27 16:28:41 -0700 | [diff] [blame] | 2212 | .id_table = wl3501_ids, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 2213 | .suspend = wl3501_suspend, |
| 2214 | .resume = wl3501_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2215 | }; |
| 2216 | |
| 2217 | static int __init wl3501_init_module(void) |
| 2218 | { |
| 2219 | return pcmcia_register_driver(&wl3501_driver); |
| 2220 | } |
| 2221 | |
| 2222 | static void __exit wl3501_exit_module(void) |
| 2223 | { |
| 2224 | dprintk(0, ": unloading"); |
| 2225 | pcmcia_unregister_driver(&wl3501_driver); |
| 2226 | BUG_ON(wl3501_dev_list != NULL); |
| 2227 | } |
| 2228 | |
| 2229 | module_init(wl3501_init_module); |
| 2230 | module_exit(wl3501_exit_module); |
| 2231 | |
| 2232 | MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, " |
| 2233 | "Arnaldo Carvalho de Melo <acme@conectiva.com.br>," |
| 2234 | "Gustavo Niemeyer <niemeyer@conectiva.com>"); |
| 2235 | MODULE_DESCRIPTION("Planet wl3501 wireless driver"); |
| 2236 | MODULE_LICENSE("GPL"); |