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Commit | Line | Data |
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1da177e4 LT |
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 | ||
52 | #include <pcmcia/version.h> | |
53 | #include <pcmcia/cs_types.h> | |
54 | #include <pcmcia/cs.h> | |
55 | #include <pcmcia/cistpl.h> | |
56 | #include <pcmcia/cisreg.h> | |
57 | #include <pcmcia/ds.h> | |
58 | ||
59 | #include <asm/io.h> | |
60 | #include <asm/uaccess.h> | |
61 | #include <asm/system.h> | |
62 | ||
63 | #include "wl3501.h" | |
64 | ||
65 | #ifndef __i386__ | |
66 | #define slow_down_io() | |
67 | #endif | |
68 | ||
69 | /* For rough constant delay */ | |
70 | #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); } | |
71 | ||
72 | /* | |
73 | * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If you do not | |
74 | * define PCMCIA_DEBUG at all, all the debug code will be left out. If you | |
75 | * compile with PCMCIA_DEBUG=0, the debug code will be present but disabled -- | |
76 | * but it can then be enabled for specific modules at load time with a | |
77 | * 'pc_debug=#' option to insmod. | |
78 | */ | |
79 | #define PCMCIA_DEBUG 0 | |
80 | #ifdef PCMCIA_DEBUG | |
81 | static int pc_debug = PCMCIA_DEBUG; | |
82 | module_param(pc_debug, int, 0); | |
83 | #define dprintk(n, format, args...) \ | |
84 | { if (pc_debug > (n)) \ | |
85 | printk(KERN_INFO "%s: " format "\n", __FUNCTION__ , ##args); } | |
86 | #else | |
87 | #define dprintk(n, format, args...) | |
88 | #endif | |
89 | ||
90 | #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); } | |
91 | #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); } | |
92 | #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); } | |
93 | ||
94 | #define WL3501_RELEASE_TIMEOUT (25 * HZ) | |
95 | #define WL3501_MAX_ADHOC_TRIES 16 | |
96 | ||
97 | #define WL3501_RESUME 0 | |
98 | #define WL3501_SUSPEND 1 | |
99 | ||
100 | /* | |
101 | * The event() function is this driver's Card Services event handler. It will | |
102 | * be called by Card Services when an appropriate card status event is | |
103 | * received. The config() and release() entry points are used to configure or | |
104 | * release a socket, in response to card insertion and ejection events. They | |
105 | * are invoked from the wl24 event handler. | |
106 | */ | |
107 | static void wl3501_config(dev_link_t *link); | |
108 | static void wl3501_release(dev_link_t *link); | |
109 | static int wl3501_event(event_t event, int pri, event_callback_args_t *args); | |
110 | ||
111 | /* | |
112 | * The dev_info variable is the "key" that is used to match up this | |
113 | * device driver with appropriate cards, through the card configuration | |
114 | * database. | |
115 | */ | |
116 | static dev_info_t wl3501_dev_info = "wl3501_cs"; | |
117 | ||
118 | static int wl3501_chan2freq[] = { | |
119 | [0] = 2412, [1] = 2417, [2] = 2422, [3] = 2427, [4] = 2432, | |
120 | [5] = 2437, [6] = 2442, [7] = 2447, [8] = 2452, [9] = 2457, | |
121 | [10] = 2462, [11] = 2467, [12] = 2472, [13] = 2477, | |
122 | }; | |
123 | ||
124 | static const struct { | |
125 | int reg_domain; | |
126 | int min, max, deflt; | |
127 | } iw_channel_table[] = { | |
128 | { | |
129 | .reg_domain = IW_REG_DOMAIN_FCC, | |
130 | .min = 1, | |
131 | .max = 11, | |
132 | .deflt = 1, | |
133 | }, | |
134 | { | |
135 | .reg_domain = IW_REG_DOMAIN_DOC, | |
136 | .min = 1, | |
137 | .max = 11, | |
138 | .deflt = 1, | |
139 | }, | |
140 | { | |
141 | .reg_domain = IW_REG_DOMAIN_ETSI, | |
142 | .min = 1, | |
143 | .max = 13, | |
144 | .deflt = 1, | |
145 | }, | |
146 | { | |
147 | .reg_domain = IW_REG_DOMAIN_SPAIN, | |
148 | .min = 10, | |
149 | .max = 11, | |
150 | .deflt = 10, | |
151 | }, | |
152 | { | |
153 | .reg_domain = IW_REG_DOMAIN_FRANCE, | |
154 | .min = 10, | |
155 | .max = 13, | |
156 | .deflt = 10, | |
157 | }, | |
158 | { | |
159 | .reg_domain = IW_REG_DOMAIN_MKK, | |
160 | .min = 14, | |
161 | .max = 14, | |
162 | .deflt = 14, | |
163 | }, | |
164 | { | |
165 | .reg_domain = IW_REG_DOMAIN_MKK1, | |
166 | .min = 1, | |
167 | .max = 14, | |
168 | .deflt = 1, | |
169 | }, | |
170 | { | |
171 | .reg_domain = IW_REG_DOMAIN_ISRAEL, | |
172 | .min = 3, | |
173 | .max = 9, | |
174 | .deflt = 9, | |
175 | }, | |
176 | }; | |
177 | ||
178 | /** | |
179 | * iw_valid_channel - validate channel in regulatory domain | |
180 | * @reg_comain - regulatory domain | |
181 | * @channel - channel to validate | |
182 | * | |
183 | * Returns 0 if invalid in the specified regulatory domain, non-zero if valid. | |
184 | */ | |
185 | static int iw_valid_channel(int reg_domain, int channel) | |
186 | { | |
187 | int i, rc = 0; | |
188 | ||
189 | for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) | |
190 | if (reg_domain == iw_channel_table[i].reg_domain) { | |
191 | rc = channel >= iw_channel_table[i].min && | |
192 | channel <= iw_channel_table[i].max; | |
193 | break; | |
194 | } | |
195 | return rc; | |
196 | } | |
197 | ||
198 | /** | |
199 | * iw_default_channel - get default channel for a regulatory domain | |
200 | * @reg_comain - regulatory domain | |
201 | * | |
202 | * Returns the default channel for a regulatory domain | |
203 | */ | |
204 | static int iw_default_channel(int reg_domain) | |
205 | { | |
206 | int i, rc = 1; | |
207 | ||
208 | for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) | |
209 | if (reg_domain == iw_channel_table[i].reg_domain) { | |
210 | rc = iw_channel_table[i].deflt; | |
211 | break; | |
212 | } | |
213 | return rc; | |
214 | } | |
215 | ||
216 | static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id, | |
217 | struct iw_mgmt_info_element *el, | |
218 | void *value, int len) | |
219 | { | |
220 | el->id = id; | |
221 | el->len = len; | |
222 | memcpy(el->data, value, len); | |
223 | } | |
224 | ||
225 | static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to, | |
226 | struct iw_mgmt_info_element *from) | |
227 | { | |
228 | iw_set_mgmt_info_element(from->id, to, from->data, from->len); | |
229 | } | |
230 | ||
231 | /* | |
232 | * A linked list of "instances" of the wl24 device. Each actual PCMCIA card | |
233 | * corresponds to one device instance, and is described by one dev_link_t | |
234 | * structure (defined in ds.h). | |
235 | * | |
236 | * You may not want to use a linked list for this -- for example, the memory | |
237 | * card driver uses an array of dev_link_t pointers, where minor device numbers | |
238 | * are used to derive the corresponding array index. | |
239 | */ | |
240 | static dev_link_t *wl3501_dev_list; | |
241 | ||
242 | static inline void wl3501_switch_page(struct wl3501_card *this, u8 page) | |
243 | { | |
244 | wl3501_outb(page, this->base_addr + WL3501_NIC_BSS); | |
245 | } | |
246 | ||
247 | /* | |
248 | * Get Ethernet MAC addresss. | |
249 | * | |
250 | * WARNING: We switch to FPAGE0 and switc back again. | |
251 | * Making sure there is no other WL function beening called by ISR. | |
252 | */ | |
253 | static int wl3501_get_flash_mac_addr(struct wl3501_card *this) | |
254 | { | |
255 | int base_addr = this->base_addr; | |
256 | ||
257 | /* get MAC addr */ | |
258 | wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */ | |
259 | wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */ | |
260 | wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */ | |
261 | ||
262 | /* wait for reading EEPROM */ | |
263 | WL3501_NOPLOOP(100); | |
264 | this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA); | |
265 | WL3501_NOPLOOP(100); | |
266 | this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA); | |
267 | WL3501_NOPLOOP(100); | |
268 | this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA); | |
269 | WL3501_NOPLOOP(100); | |
270 | this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA); | |
271 | WL3501_NOPLOOP(100); | |
272 | this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA); | |
273 | WL3501_NOPLOOP(100); | |
274 | this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA); | |
275 | WL3501_NOPLOOP(100); | |
276 | this->reg_domain = inb(base_addr + WL3501_NIC_IODPA); | |
277 | WL3501_NOPLOOP(100); | |
278 | wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS); | |
279 | wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL); | |
280 | wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); | |
281 | WL3501_NOPLOOP(100); | |
282 | this->version[0] = inb(base_addr + WL3501_NIC_IODPA); | |
283 | WL3501_NOPLOOP(100); | |
284 | this->version[1] = inb(base_addr + WL3501_NIC_IODPA); | |
285 | /* switch to SRAM Page 0 (for safety) */ | |
286 | wl3501_switch_page(this, WL3501_BSS_SPAGE0); | |
287 | ||
288 | /* The MAC addr should be 00:60:... */ | |
289 | return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60; | |
290 | } | |
291 | ||
292 | /** | |
293 | * wl3501_set_to_wla - Move 'size' bytes from PC to card | |
294 | * @dest: Card addressing space | |
295 | * @src: PC addressing space | |
296 | * @size: Bytes to move | |
297 | * | |
298 | * Move 'size' bytes from PC to card. (Shouldn't be interrupted) | |
299 | */ | |
300 | void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, int size) | |
301 | { | |
302 | /* switch to SRAM Page 0 */ | |
303 | wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 : | |
304 | WL3501_BSS_SPAGE0); | |
305 | /* set LMAL and LMAH */ | |
306 | wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL); | |
307 | wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH); | |
308 | ||
309 | /* rep out to Port A */ | |
310 | wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size); | |
311 | } | |
312 | ||
313 | /** | |
314 | * wl3501_get_from_wla - Move 'size' bytes from card to PC | |
315 | * @src: Card addressing space | |
316 | * @dest: PC addressing space | |
317 | * @size: Bytes to move | |
318 | * | |
319 | * Move 'size' bytes from card to PC. (Shouldn't be interrupted) | |
320 | */ | |
321 | void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, | |
322 | int size) | |
323 | { | |
324 | /* switch to SRAM Page 0 */ | |
325 | wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 : | |
326 | WL3501_BSS_SPAGE0); | |
327 | /* set LMAL and LMAH */ | |
328 | wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL); | |
329 | wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH); | |
330 | ||
331 | /* rep get from Port A */ | |
332 | insb(this->base_addr + WL3501_NIC_IODPA, dest, size); | |
333 | } | |
334 | ||
335 | /* | |
336 | * Get/Allocate a free Tx Data Buffer | |
337 | * | |
338 | * *--------------*-----------------*----------------------------------* | |
339 | * | PLCP | MAC Header | DST SRC Data ... | | |
340 | * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) | | |
341 | * *--------------*-----------------*----------------------------------* | |
342 | * \ \- IEEE 802.11 -/ \-------------- len --------------/ | |
343 | * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/ | |
344 | * | |
345 | * Return = Postion in Card | |
346 | */ | |
347 | static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len) | |
348 | { | |
349 | u16 next, blk_cnt = 0, zero = 0; | |
350 | u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len; | |
351 | u16 ret = 0; | |
352 | ||
353 | if (full_len > this->tx_buffer_cnt * 254) | |
354 | goto out; | |
355 | ret = this->tx_buffer_head; | |
356 | while (full_len) { | |
357 | if (full_len < 254) | |
358 | full_len = 0; | |
359 | else | |
360 | full_len -= 254; | |
361 | wl3501_get_from_wla(this, this->tx_buffer_head, &next, | |
362 | sizeof(next)); | |
363 | if (!full_len) | |
364 | wl3501_set_to_wla(this, this->tx_buffer_head, &zero, | |
365 | sizeof(zero)); | |
366 | this->tx_buffer_head = next; | |
367 | blk_cnt++; | |
368 | /* if buffer is not enough */ | |
369 | if (!next && full_len) { | |
370 | this->tx_buffer_head = ret; | |
371 | ret = 0; | |
372 | goto out; | |
373 | } | |
374 | } | |
375 | this->tx_buffer_cnt -= blk_cnt; | |
376 | out: | |
377 | return ret; | |
378 | } | |
379 | ||
380 | /* | |
381 | * Free an allocated Tx Buffer. ptr must be correct position. | |
382 | */ | |
383 | static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr) | |
384 | { | |
385 | /* check if all space is not free */ | |
386 | if (!this->tx_buffer_head) | |
387 | this->tx_buffer_head = ptr; | |
388 | else | |
389 | wl3501_set_to_wla(this, this->tx_buffer_tail, | |
390 | &ptr, sizeof(ptr)); | |
391 | while (ptr) { | |
392 | u16 next; | |
393 | ||
394 | this->tx_buffer_cnt++; | |
395 | wl3501_get_from_wla(this, ptr, &next, sizeof(next)); | |
396 | this->tx_buffer_tail = ptr; | |
397 | ptr = next; | |
398 | } | |
399 | } | |
400 | ||
401 | static int wl3501_esbq_req_test(struct wl3501_card *this) | |
402 | { | |
403 | u8 tmp; | |
404 | ||
405 | wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp)); | |
406 | return tmp & 0x80; | |
407 | } | |
408 | ||
409 | static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr) | |
410 | { | |
411 | u16 tmp = 0; | |
412 | ||
413 | wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2); | |
414 | wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp)); | |
415 | this->esbq_req_head += 4; | |
416 | if (this->esbq_req_head >= this->esbq_req_end) | |
417 | this->esbq_req_head = this->esbq_req_start; | |
418 | } | |
419 | ||
420 | static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size) | |
421 | { | |
422 | int rc = -EIO; | |
423 | ||
424 | if (wl3501_esbq_req_test(this)) { | |
425 | u16 ptr = wl3501_get_tx_buffer(this, sig_size); | |
426 | if (ptr) { | |
427 | wl3501_set_to_wla(this, ptr, sig, sig_size); | |
428 | wl3501_esbq_req(this, &ptr); | |
429 | rc = 0; | |
430 | } | |
431 | } | |
432 | return rc; | |
433 | } | |
434 | ||
435 | static int wl3501_get_mib_value(struct wl3501_card *this, u8 index, | |
436 | void *bf, int size) | |
437 | { | |
438 | struct wl3501_get_req sig = { | |
439 | .sig_id = WL3501_SIG_GET_REQ, | |
440 | .mib_attrib = index, | |
441 | }; | |
442 | unsigned long flags; | |
443 | int rc = -EIO; | |
444 | ||
445 | spin_lock_irqsave(&this->lock, flags); | |
446 | if (wl3501_esbq_req_test(this)) { | |
447 | u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); | |
448 | if (ptr) { | |
449 | wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); | |
450 | wl3501_esbq_req(this, &ptr); | |
451 | this->sig_get_confirm.mib_status = 255; | |
452 | spin_unlock_irqrestore(&this->lock, flags); | |
453 | rc = wait_event_interruptible(this->wait, | |
454 | this->sig_get_confirm.mib_status != 255); | |
455 | if (!rc) | |
456 | memcpy(bf, this->sig_get_confirm.mib_value, | |
457 | size); | |
458 | goto out; | |
459 | } | |
460 | } | |
461 | spin_unlock_irqrestore(&this->lock, flags); | |
462 | out: | |
463 | return rc; | |
464 | } | |
465 | ||
466 | static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend) | |
467 | { | |
468 | struct wl3501_pwr_mgmt_req sig = { | |
469 | .sig_id = WL3501_SIG_PWR_MGMT_REQ, | |
470 | .pwr_save = suspend, | |
471 | .wake_up = !suspend, | |
472 | .receive_dtims = 10, | |
473 | }; | |
474 | unsigned long flags; | |
475 | int rc = -EIO; | |
476 | ||
477 | spin_lock_irqsave(&this->lock, flags); | |
478 | if (wl3501_esbq_req_test(this)) { | |
479 | u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); | |
480 | if (ptr) { | |
481 | wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); | |
482 | wl3501_esbq_req(this, &ptr); | |
483 | this->sig_pwr_mgmt_confirm.status = 255; | |
484 | spin_unlock_irqrestore(&this->lock, flags); | |
485 | rc = wait_event_interruptible(this->wait, | |
486 | this->sig_pwr_mgmt_confirm.status != 255); | |
487 | printk(KERN_INFO "%s: %s status=%d\n", __FUNCTION__, | |
488 | suspend ? "suspend" : "resume", | |
489 | this->sig_pwr_mgmt_confirm.status); | |
490 | goto out; | |
491 | } | |
492 | } | |
493 | spin_unlock_irqrestore(&this->lock, flags); | |
494 | out: | |
495 | return rc; | |
496 | } | |
497 | ||
498 | /** | |
499 | * wl3501_send_pkt - Send a packet. | |
500 | * @this - card | |
501 | * | |
502 | * Send a packet. | |
503 | * | |
504 | * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr, | |
505 | * data[6] - data[11] is Src MAC Addr) | |
506 | * Ref: IEEE 802.11 | |
507 | */ | |
508 | static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len) | |
509 | { | |
510 | u16 bf, sig_bf, next, tmplen, pktlen; | |
511 | struct wl3501_md_req sig = { | |
512 | .sig_id = WL3501_SIG_MD_REQ, | |
513 | }; | |
514 | u8 *pdata = (char *)data; | |
515 | int rc = -EIO; | |
516 | ||
517 | if (wl3501_esbq_req_test(this)) { | |
518 | sig_bf = wl3501_get_tx_buffer(this, sizeof(sig)); | |
519 | rc = -ENOMEM; | |
520 | if (!sig_bf) /* No free buffer available */ | |
521 | goto out; | |
522 | bf = wl3501_get_tx_buffer(this, len + 26 + 24); | |
523 | if (!bf) { | |
524 | /* No free buffer available */ | |
525 | wl3501_free_tx_buffer(this, sig_bf); | |
526 | goto out; | |
527 | } | |
528 | rc = 0; | |
529 | memcpy(&sig.daddr[0], pdata, 12); | |
530 | pktlen = len - 12; | |
531 | pdata += 12; | |
532 | sig.data = bf; | |
533 | if (((*pdata) * 256 + (*(pdata + 1))) > 1500) { | |
534 | u8 addr4[ETH_ALEN] = { | |
535 | [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00, | |
536 | }; | |
537 | ||
538 | wl3501_set_to_wla(this, bf + 2 + | |
539 | offsetof(struct wl3501_tx_hdr, addr4), | |
540 | addr4, sizeof(addr4)); | |
541 | sig.size = pktlen + 24 + 4 + 6; | |
542 | if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) { | |
543 | tmplen = 254 - sizeof(struct wl3501_tx_hdr); | |
544 | pktlen -= tmplen; | |
545 | } else { | |
546 | tmplen = pktlen; | |
547 | pktlen = 0; | |
548 | } | |
549 | wl3501_set_to_wla(this, | |
550 | bf + 2 + sizeof(struct wl3501_tx_hdr), | |
551 | pdata, tmplen); | |
552 | pdata += tmplen; | |
553 | wl3501_get_from_wla(this, bf, &next, sizeof(next)); | |
554 | bf = next; | |
555 | } else { | |
556 | sig.size = pktlen + 24 + 4 - 2; | |
557 | pdata += 2; | |
558 | pktlen -= 2; | |
559 | if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) { | |
560 | tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6; | |
561 | pktlen -= tmplen; | |
562 | } else { | |
563 | tmplen = pktlen; | |
564 | pktlen = 0; | |
565 | } | |
566 | wl3501_set_to_wla(this, bf + 2 + | |
567 | offsetof(struct wl3501_tx_hdr, addr4), | |
568 | pdata, tmplen); | |
569 | pdata += tmplen; | |
570 | wl3501_get_from_wla(this, bf, &next, sizeof(next)); | |
571 | bf = next; | |
572 | } | |
573 | while (pktlen > 0) { | |
574 | if (pktlen > 254) { | |
575 | tmplen = 254; | |
576 | pktlen -= 254; | |
577 | } else { | |
578 | tmplen = pktlen; | |
579 | pktlen = 0; | |
580 | } | |
581 | wl3501_set_to_wla(this, bf + 2, pdata, tmplen); | |
582 | pdata += tmplen; | |
583 | wl3501_get_from_wla(this, bf, &next, sizeof(next)); | |
584 | bf = next; | |
585 | } | |
586 | wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig)); | |
587 | wl3501_esbq_req(this, &sig_bf); | |
588 | } | |
589 | out: | |
590 | return rc; | |
591 | } | |
592 | ||
593 | static int wl3501_mgmt_resync(struct wl3501_card *this) | |
594 | { | |
595 | struct wl3501_resync_req sig = { | |
596 | .sig_id = WL3501_SIG_RESYNC_REQ, | |
597 | }; | |
598 | ||
599 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); | |
600 | } | |
601 | ||
602 | static inline int wl3501_fw_bss_type(struct wl3501_card *this) | |
603 | { | |
604 | return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA : | |
605 | WL3501_NET_TYPE_ADHOC; | |
606 | } | |
607 | ||
608 | static inline int wl3501_fw_cap_info(struct wl3501_card *this) | |
609 | { | |
610 | return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS : | |
611 | WL3501_MGMT_CAPABILITY_IBSS; | |
612 | } | |
613 | ||
614 | static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time) | |
615 | { | |
616 | struct wl3501_scan_req sig = { | |
617 | .sig_id = WL3501_SIG_SCAN_REQ, | |
618 | .scan_type = WL3501_SCAN_TYPE_ACTIVE, | |
619 | .probe_delay = 0x10, | |
620 | .min_chan_time = chan_time, | |
621 | .max_chan_time = chan_time, | |
622 | .bss_type = wl3501_fw_bss_type(this), | |
623 | }; | |
624 | ||
625 | this->bss_cnt = this->join_sta_bss = 0; | |
626 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); | |
627 | } | |
628 | ||
629 | static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas) | |
630 | { | |
631 | struct wl3501_join_req sig = { | |
632 | .sig_id = WL3501_SIG_JOIN_REQ, | |
633 | .timeout = 10, | |
634 | .ds_pset = { | |
635 | .el = { | |
636 | .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, | |
637 | .len = 1, | |
638 | }, | |
639 | .chan = this->chan, | |
640 | }, | |
641 | }; | |
642 | ||
643 | memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72); | |
644 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); | |
645 | } | |
646 | ||
647 | static int wl3501_mgmt_start(struct wl3501_card *this) | |
648 | { | |
649 | struct wl3501_start_req sig = { | |
650 | .sig_id = WL3501_SIG_START_REQ, | |
651 | .beacon_period = 400, | |
652 | .dtim_period = 1, | |
653 | .ds_pset = { | |
654 | .el = { | |
655 | .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, | |
656 | .len = 1, | |
657 | }, | |
658 | .chan = this->chan, | |
659 | }, | |
660 | .bss_basic_rset = { | |
661 | .el = { | |
662 | .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, | |
663 | .len = 2, | |
664 | }, | |
665 | .data_rate_labels = { | |
666 | [0] = IW_MGMT_RATE_LABEL_MANDATORY | | |
667 | IW_MGMT_RATE_LABEL_1MBIT, | |
668 | [1] = IW_MGMT_RATE_LABEL_MANDATORY | | |
669 | IW_MGMT_RATE_LABEL_2MBIT, | |
670 | }, | |
671 | }, | |
672 | .operational_rset = { | |
673 | .el = { | |
674 | .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, | |
675 | .len = 2, | |
676 | }, | |
677 | .data_rate_labels = { | |
678 | [0] = IW_MGMT_RATE_LABEL_MANDATORY | | |
679 | IW_MGMT_RATE_LABEL_1MBIT, | |
680 | [1] = IW_MGMT_RATE_LABEL_MANDATORY | | |
681 | IW_MGMT_RATE_LABEL_2MBIT, | |
682 | }, | |
683 | }, | |
684 | .ibss_pset = { | |
685 | .el = { | |
686 | .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET, | |
687 | .len = 2, | |
688 | }, | |
689 | .atim_window = 10, | |
690 | }, | |
691 | .bss_type = wl3501_fw_bss_type(this), | |
692 | .cap_info = wl3501_fw_cap_info(this), | |
693 | }; | |
694 | ||
695 | iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el); | |
696 | iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el); | |
697 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); | |
698 | } | |
699 | ||
700 | static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr) | |
701 | { | |
702 | u16 i = 0; | |
703 | int matchflag = 0; | |
704 | struct wl3501_scan_confirm sig; | |
705 | ||
706 | dprintk(3, "entry"); | |
707 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); | |
708 | if (sig.status == WL3501_STATUS_SUCCESS) { | |
709 | dprintk(3, "success"); | |
710 | if ((this->net_type == IW_MODE_INFRA && | |
711 | (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) || | |
712 | (this->net_type == IW_MODE_ADHOC && | |
713 | (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) || | |
714 | this->net_type == IW_MODE_AUTO) { | |
715 | if (!this->essid.el.len) | |
716 | matchflag = 1; | |
717 | else if (this->essid.el.len == 3 && | |
718 | !memcmp(this->essid.essid, "ANY", 3)) | |
719 | matchflag = 1; | |
720 | else if (this->essid.el.len != sig.ssid.el.len) | |
721 | matchflag = 0; | |
722 | else if (memcmp(this->essid.essid, sig.ssid.essid, | |
723 | this->essid.el.len)) | |
724 | matchflag = 0; | |
725 | else | |
726 | matchflag = 1; | |
727 | if (matchflag) { | |
728 | for (i = 0; i < this->bss_cnt; i++) { | |
729 | if (!memcmp(this->bss_set[i].bssid, | |
730 | sig.bssid, ETH_ALEN)) { | |
731 | matchflag = 0; | |
732 | break; | |
733 | } | |
734 | } | |
735 | } | |
736 | if (matchflag && (i < 20)) { | |
737 | memcpy(&this->bss_set[i].beacon_period, | |
738 | &sig.beacon_period, 73); | |
739 | this->bss_cnt++; | |
740 | this->rssi = sig.rssi; | |
741 | } | |
742 | } | |
743 | } else if (sig.status == WL3501_STATUS_TIMEOUT) { | |
744 | dprintk(3, "timeout"); | |
745 | this->join_sta_bss = 0; | |
746 | for (i = this->join_sta_bss; i < this->bss_cnt; i++) | |
747 | if (!wl3501_mgmt_join(this, i)) | |
748 | break; | |
749 | this->join_sta_bss = i; | |
750 | if (this->join_sta_bss == this->bss_cnt) { | |
751 | if (this->net_type == IW_MODE_INFRA) | |
752 | wl3501_mgmt_scan(this, 100); | |
753 | else { | |
754 | this->adhoc_times++; | |
755 | if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) | |
756 | wl3501_mgmt_start(this); | |
757 | else | |
758 | wl3501_mgmt_scan(this, 100); | |
759 | } | |
760 | } | |
761 | } | |
762 | } | |
763 | ||
764 | /** | |
765 | * wl3501_block_interrupt - Mask interrupt from SUTRO | |
766 | * @this - card | |
767 | * | |
768 | * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST) | |
769 | * Return: 1 if interrupt is originally enabled | |
770 | */ | |
771 | static int wl3501_block_interrupt(struct wl3501_card *this) | |
772 | { | |
773 | u8 old = inb(this->base_addr + WL3501_NIC_GCR); | |
774 | u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC | | |
775 | WL3501_GCR_ENECINT)); | |
776 | ||
777 | wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); | |
778 | return old & WL3501_GCR_ENECINT; | |
779 | } | |
780 | ||
781 | /** | |
782 | * wl3501_unblock_interrupt - Enable interrupt from SUTRO | |
783 | * @this - card | |
784 | * | |
785 | * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST) | |
786 | * Return: 1 if interrupt is originally enabled | |
787 | */ | |
788 | static int wl3501_unblock_interrupt(struct wl3501_card *this) | |
789 | { | |
790 | u8 old = inb(this->base_addr + WL3501_NIC_GCR); | |
791 | u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) | | |
792 | WL3501_GCR_ENECINT; | |
793 | ||
794 | wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); | |
795 | return old & WL3501_GCR_ENECINT; | |
796 | } | |
797 | ||
798 | /** | |
799 | * wl3501_receive - Receive data from Receive Queue. | |
800 | * | |
801 | * Receive data from Receive Queue. | |
802 | * | |
803 | * @this: card | |
804 | * @bf: address of host | |
805 | * @size: size of buffer. | |
806 | */ | |
807 | static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size) | |
808 | { | |
809 | u16 next_addr, next_addr1; | |
810 | u8 *data = bf + 12; | |
811 | ||
812 | size -= 12; | |
813 | wl3501_get_from_wla(this, this->start_seg + 2, | |
814 | &next_addr, sizeof(next_addr)); | |
815 | if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) { | |
816 | wl3501_get_from_wla(this, | |
817 | this->start_seg + | |
818 | sizeof(struct wl3501_rx_hdr), data, | |
819 | WL3501_BLKSZ - | |
820 | sizeof(struct wl3501_rx_hdr)); | |
821 | size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); | |
822 | data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); | |
823 | } else { | |
824 | wl3501_get_from_wla(this, | |
825 | this->start_seg + | |
826 | sizeof(struct wl3501_rx_hdr), | |
827 | data, size); | |
828 | size = 0; | |
829 | } | |
830 | while (size > 0) { | |
831 | if (size > WL3501_BLKSZ - 5) { | |
832 | wl3501_get_from_wla(this, next_addr + 5, data, | |
833 | WL3501_BLKSZ - 5); | |
834 | size -= WL3501_BLKSZ - 5; | |
835 | data += WL3501_BLKSZ - 5; | |
836 | wl3501_get_from_wla(this, next_addr + 2, &next_addr1, | |
837 | sizeof(next_addr1)); | |
838 | next_addr = next_addr1; | |
839 | } else { | |
840 | wl3501_get_from_wla(this, next_addr + 5, data, size); | |
841 | size = 0; | |
842 | } | |
843 | } | |
844 | return 0; | |
845 | } | |
846 | ||
847 | static void wl3501_esbq_req_free(struct wl3501_card *this) | |
848 | { | |
849 | u8 tmp; | |
850 | u16 addr; | |
851 | ||
852 | if (this->esbq_req_head == this->esbq_req_tail) | |
853 | goto out; | |
854 | wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp)); | |
855 | if (!(tmp & 0x80)) | |
856 | goto out; | |
857 | wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr)); | |
858 | wl3501_free_tx_buffer(this, addr); | |
859 | this->esbq_req_tail += 4; | |
860 | if (this->esbq_req_tail >= this->esbq_req_end) | |
861 | this->esbq_req_tail = this->esbq_req_start; | |
862 | out: | |
863 | return; | |
864 | } | |
865 | ||
866 | static int wl3501_esbq_confirm(struct wl3501_card *this) | |
867 | { | |
868 | u8 tmp; | |
869 | ||
870 | wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); | |
871 | return tmp & 0x80; | |
872 | } | |
873 | ||
874 | static void wl3501_online(struct net_device *dev) | |
875 | { | |
876 | struct wl3501_card *this = dev->priv; | |
877 | ||
878 | printk(KERN_INFO "%s: Wireless LAN online. BSSID: " | |
879 | "%02X %02X %02X %02X %02X %02X\n", dev->name, | |
880 | this->bssid[0], this->bssid[1], this->bssid[2], | |
881 | this->bssid[3], this->bssid[4], this->bssid[5]); | |
882 | netif_wake_queue(dev); | |
883 | } | |
884 | ||
885 | static void wl3501_esbq_confirm_done(struct wl3501_card *this) | |
886 | { | |
887 | u8 tmp = 0; | |
888 | ||
889 | wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); | |
890 | this->esbq_confirm += 4; | |
891 | if (this->esbq_confirm >= this->esbq_confirm_end) | |
892 | this->esbq_confirm = this->esbq_confirm_start; | |
893 | } | |
894 | ||
895 | static int wl3501_mgmt_auth(struct wl3501_card *this) | |
896 | { | |
897 | struct wl3501_auth_req sig = { | |
898 | .sig_id = WL3501_SIG_AUTH_REQ, | |
899 | .type = WL3501_SYS_TYPE_OPEN, | |
900 | .timeout = 1000, | |
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 | ||
908 | static int wl3501_mgmt_association(struct wl3501_card *this) | |
909 | { | |
910 | struct wl3501_assoc_req sig = { | |
911 | .sig_id = WL3501_SIG_ASSOC_REQ, | |
912 | .timeout = 1000, | |
913 | .listen_interval = 5, | |
914 | .cap_info = this->cap_info, | |
915 | }; | |
916 | ||
917 | dprintk(3, "entry"); | |
918 | memcpy(sig.mac_addr, this->bssid, ETH_ALEN); | |
919 | return wl3501_esbq_exec(this, &sig, sizeof(sig)); | |
920 | } | |
921 | ||
922 | static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr) | |
923 | { | |
924 | struct wl3501_card *this = dev->priv; | |
925 | struct wl3501_join_confirm sig; | |
926 | ||
927 | dprintk(3, "entry"); | |
928 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); | |
929 | if (sig.status == WL3501_STATUS_SUCCESS) { | |
930 | if (this->net_type == IW_MODE_INFRA) { | |
931 | if (this->join_sta_bss < this->bss_cnt) { | |
932 | const int i = this->join_sta_bss; | |
933 | memcpy(this->bssid, | |
934 | this->bss_set[i].bssid, ETH_ALEN); | |
935 | this->chan = this->bss_set[i].ds_pset.chan; | |
936 | iw_copy_mgmt_info_element(&this->keep_essid.el, | |
937 | &this->bss_set[i].ssid.el); | |
938 | wl3501_mgmt_auth(this); | |
939 | } | |
940 | } else { | |
941 | const int i = this->join_sta_bss; | |
942 | ||
943 | memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN); | |
944 | this->chan = this->bss_set[i].ds_pset.chan; | |
945 | iw_copy_mgmt_info_element(&this->keep_essid.el, | |
946 | &this->bss_set[i].ssid.el); | |
947 | wl3501_online(dev); | |
948 | } | |
949 | } else { | |
950 | int i; | |
951 | this->join_sta_bss++; | |
952 | for (i = this->join_sta_bss; i < this->bss_cnt; i++) | |
953 | if (!wl3501_mgmt_join(this, i)) | |
954 | break; | |
955 | this->join_sta_bss = i; | |
956 | if (this->join_sta_bss == this->bss_cnt) { | |
957 | if (this->net_type == IW_MODE_INFRA) | |
958 | wl3501_mgmt_scan(this, 100); | |
959 | else { | |
960 | this->adhoc_times++; | |
961 | if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) | |
962 | wl3501_mgmt_start(this); | |
963 | else | |
964 | wl3501_mgmt_scan(this, 100); | |
965 | } | |
966 | } | |
967 | } | |
968 | } | |
969 | ||
970 | static inline void wl3501_alarm_interrupt(struct net_device *dev, | |
971 | struct wl3501_card *this) | |
972 | { | |
973 | if (this->net_type == IW_MODE_INFRA) { | |
974 | printk(KERN_INFO "Wireless LAN offline\n"); | |
975 | netif_stop_queue(dev); | |
976 | wl3501_mgmt_resync(this); | |
977 | } | |
978 | } | |
979 | ||
980 | static inline void wl3501_md_confirm_interrupt(struct net_device *dev, | |
981 | struct wl3501_card *this, | |
982 | u16 addr) | |
983 | { | |
984 | struct wl3501_md_confirm sig; | |
985 | ||
986 | dprintk(3, "entry"); | |
987 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); | |
988 | wl3501_free_tx_buffer(this, sig.data); | |
989 | if (netif_queue_stopped(dev)) | |
990 | netif_wake_queue(dev); | |
991 | } | |
992 | ||
993 | static inline void wl3501_md_ind_interrupt(struct net_device *dev, | |
994 | struct wl3501_card *this, u16 addr) | |
995 | { | |
996 | struct wl3501_md_ind sig; | |
997 | struct sk_buff *skb; | |
998 | u8 rssi, addr4[ETH_ALEN]; | |
999 | u16 pkt_len; | |
1000 | ||
1001 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); | |
1002 | this->start_seg = sig.data; | |
1003 | wl3501_get_from_wla(this, | |
1004 | sig.data + offsetof(struct wl3501_rx_hdr, rssi), | |
1005 | &rssi, sizeof(rssi)); | |
1006 | this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255; | |
1007 | ||
1008 | wl3501_get_from_wla(this, | |
1009 | sig.data + | |
1010 | offsetof(struct wl3501_rx_hdr, addr4), | |
1011 | &addr4, sizeof(addr4)); | |
1012 | if (!(addr4[0] == 0xAA && addr4[1] == 0xAA && | |
1013 | addr4[2] == 0x03 && addr4[4] == 0x00)) { | |
1014 | printk(KERN_INFO "Insupported packet type!\n"); | |
1015 | return; | |
1016 | } | |
1017 | pkt_len = sig.size + 12 - 24 - 4 - 6; | |
1018 | ||
1019 | skb = dev_alloc_skb(pkt_len + 5); | |
1020 | ||
1021 | if (!skb) { | |
1022 | printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n", | |
1023 | dev->name, pkt_len); | |
1024 | this->stats.rx_dropped++; | |
1025 | } else { | |
1026 | skb->dev = dev; | |
1027 | skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */ | |
1028 | eth_copy_and_sum(skb, (unsigned char *)&sig.daddr, 12, 0); | |
1029 | wl3501_receive(this, skb->data, pkt_len); | |
1030 | skb_put(skb, pkt_len); | |
1031 | skb->protocol = eth_type_trans(skb, dev); | |
1032 | dev->last_rx = jiffies; | |
1033 | this->stats.rx_packets++; | |
1034 | this->stats.rx_bytes += skb->len; | |
1035 | netif_rx(skb); | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this, | |
1040 | u16 addr, void *sig, int size) | |
1041 | { | |
1042 | dprintk(3, "entry"); | |
1043 | wl3501_get_from_wla(this, addr, &this->sig_get_confirm, | |
1044 | sizeof(this->sig_get_confirm)); | |
1045 | wake_up(&this->wait); | |
1046 | } | |
1047 | ||
1048 | static inline void wl3501_start_confirm_interrupt(struct net_device *dev, | |
1049 | struct wl3501_card *this, | |
1050 | u16 addr) | |
1051 | { | |
1052 | struct wl3501_start_confirm sig; | |
1053 | ||
1054 | dprintk(3, "entry"); | |
1055 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); | |
1056 | if (sig.status == WL3501_STATUS_SUCCESS) | |
1057 | netif_wake_queue(dev); | |
1058 | } | |
1059 | ||
1060 | static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev, | |
1061 | u16 addr) | |
1062 | { | |
1063 | struct wl3501_card *this = dev->priv; | |
1064 | struct wl3501_assoc_confirm sig; | |
1065 | ||
1066 | dprintk(3, "entry"); | |
1067 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); | |
1068 | ||
1069 | if (sig.status == WL3501_STATUS_SUCCESS) | |
1070 | wl3501_online(dev); | |
1071 | } | |
1072 | ||
1073 | static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this, | |
1074 | u16 addr) | |
1075 | { | |
1076 | struct wl3501_auth_confirm sig; | |
1077 | ||
1078 | dprintk(3, "entry"); | |
1079 | wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); | |
1080 | ||
1081 | if (sig.status == WL3501_STATUS_SUCCESS) | |
1082 | wl3501_mgmt_association(this); | |
1083 | else | |
1084 | wl3501_mgmt_resync(this); | |
1085 | } | |
1086 | ||
1087 | static inline void wl3501_rx_interrupt(struct net_device *dev) | |
1088 | { | |
1089 | int morepkts; | |
1090 | u16 addr; | |
1091 | u8 sig_id; | |
1092 | struct wl3501_card *this = dev->priv; | |
1093 | ||
1094 | dprintk(3, "entry"); | |
1095 | loop: | |
1096 | morepkts = 0; | |
1097 | if (!wl3501_esbq_confirm(this)) | |
1098 | goto free; | |
1099 | wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr)); | |
1100 | wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id)); | |
1101 | ||
1102 | switch (sig_id) { | |
1103 | case WL3501_SIG_DEAUTH_IND: | |
1104 | case WL3501_SIG_DISASSOC_IND: | |
1105 | case WL3501_SIG_ALARM: | |
1106 | wl3501_alarm_interrupt(dev, this); | |
1107 | break; | |
1108 | case WL3501_SIG_MD_CONFIRM: | |
1109 | wl3501_md_confirm_interrupt(dev, this, addr); | |
1110 | break; | |
1111 | case WL3501_SIG_MD_IND: | |
1112 | wl3501_md_ind_interrupt(dev, this, addr); | |
1113 | break; | |
1114 | case WL3501_SIG_GET_CONFIRM: | |
1115 | wl3501_get_confirm_interrupt(this, addr, | |
1116 | &this->sig_get_confirm, | |
1117 | sizeof(this->sig_get_confirm)); | |
1118 | break; | |
1119 | case WL3501_SIG_PWR_MGMT_CONFIRM: | |
1120 | wl3501_get_confirm_interrupt(this, addr, | |
1121 | &this->sig_pwr_mgmt_confirm, | |
1122 | sizeof(this->sig_pwr_mgmt_confirm)); | |
1123 | break; | |
1124 | case WL3501_SIG_START_CONFIRM: | |
1125 | wl3501_start_confirm_interrupt(dev, this, addr); | |
1126 | break; | |
1127 | case WL3501_SIG_SCAN_CONFIRM: | |
1128 | wl3501_mgmt_scan_confirm(this, addr); | |
1129 | break; | |
1130 | case WL3501_SIG_JOIN_CONFIRM: | |
1131 | wl3501_mgmt_join_confirm(dev, addr); | |
1132 | break; | |
1133 | case WL3501_SIG_ASSOC_CONFIRM: | |
1134 | wl3501_assoc_confirm_interrupt(dev, addr); | |
1135 | break; | |
1136 | case WL3501_SIG_AUTH_CONFIRM: | |
1137 | wl3501_auth_confirm_interrupt(this, addr); | |
1138 | break; | |
1139 | case WL3501_SIG_RESYNC_CONFIRM: | |
1140 | wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */ | |
1141 | break; | |
1142 | } | |
1143 | wl3501_esbq_confirm_done(this); | |
1144 | morepkts = 1; | |
1145 | /* free request if necessary */ | |
1146 | free: | |
1147 | wl3501_esbq_req_free(this); | |
1148 | if (morepkts) | |
1149 | goto loop; | |
1150 | } | |
1151 | ||
1152 | static inline void wl3501_ack_interrupt(struct wl3501_card *this) | |
1153 | { | |
1154 | wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR); | |
1155 | } | |
1156 | ||
1157 | /** | |
1158 | * wl3501_interrupt - Hardware interrupt from card. | |
1159 | * @irq - Interrupt number | |
1160 | * @dev_id - net_device | |
1161 | * @regs - registers | |
1162 | * | |
1163 | * We must acknowledge the interrupt as soon as possible, and block the | |
1164 | * interrupt from the same card immediately to prevent re-entry. | |
1165 | * | |
1166 | * Before accessing the Control_Status_Block, we must lock SUTRO first. | |
1167 | * On the other hand, to prevent SUTRO from malfunctioning, we must | |
1168 | * unlock the SUTRO as soon as possible. | |
1169 | */ | |
1170 | static irqreturn_t wl3501_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
1171 | { | |
1172 | struct net_device *dev = (struct net_device *)dev_id; | |
1173 | struct wl3501_card *this; | |
1174 | int handled = 1; | |
1175 | ||
1176 | if (!dev) | |
1177 | goto unknown; | |
1178 | this = dev->priv; | |
1179 | spin_lock(&this->lock); | |
1180 | wl3501_ack_interrupt(this); | |
1181 | wl3501_block_interrupt(this); | |
1182 | wl3501_rx_interrupt(dev); | |
1183 | wl3501_unblock_interrupt(this); | |
1184 | spin_unlock(&this->lock); | |
1185 | out: | |
1186 | return IRQ_RETVAL(handled); | |
1187 | unknown: | |
1188 | handled = 0; | |
1189 | printk(KERN_ERR "%s: irq %d for unknown device.\n", __FUNCTION__, irq); | |
1190 | goto out; | |
1191 | } | |
1192 | ||
1193 | static int wl3501_reset_board(struct wl3501_card *this) | |
1194 | { | |
1195 | u8 tmp = 0; | |
1196 | int i, rc = 0; | |
1197 | ||
1198 | /* Coreset */ | |
1199 | wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); | |
1200 | wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); | |
1201 | wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); | |
1202 | ||
1203 | /* Reset SRAM 0x480 to zero */ | |
1204 | wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); | |
1205 | ||
1206 | /* Start up */ | |
1207 | wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); | |
1208 | ||
1209 | WL3501_NOPLOOP(1024 * 50); | |
1210 | ||
1211 | wl3501_unblock_interrupt(this); /* acme: was commented */ | |
1212 | ||
1213 | /* Polling Self_Test_Status */ | |
1214 | for (i = 0; i < 10000; i++) { | |
1215 | wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp)); | |
1216 | ||
1217 | if (tmp == 'W') { | |
1218 | /* firmware complete all test successfully */ | |
1219 | tmp = 'A'; | |
1220 | wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); | |
1221 | goto out; | |
1222 | } | |
1223 | WL3501_NOPLOOP(10); | |
1224 | } | |
1225 | printk(KERN_WARNING "%s: failed to reset the board!\n", __FUNCTION__); | |
1226 | rc = -ENODEV; | |
1227 | out: | |
1228 | return rc; | |
1229 | } | |
1230 | ||
1231 | static int wl3501_init_firmware(struct wl3501_card *this) | |
1232 | { | |
1233 | u16 ptr, next; | |
1234 | int rc = wl3501_reset_board(this); | |
1235 | ||
1236 | if (rc) | |
1237 | goto fail; | |
1238 | this->card_name[0] = '\0'; | |
1239 | wl3501_get_from_wla(this, 0x1a00, | |
1240 | this->card_name, sizeof(this->card_name)); | |
1241 | this->card_name[sizeof(this->card_name) - 1] = '\0'; | |
1242 | this->firmware_date[0] = '\0'; | |
1243 | wl3501_get_from_wla(this, 0x1a40, | |
1244 | this->firmware_date, sizeof(this->firmware_date)); | |
1245 | this->firmware_date[sizeof(this->firmware_date) - 1] = '\0'; | |
1246 | /* Switch to SRAM Page 0 */ | |
1247 | wl3501_switch_page(this, WL3501_BSS_SPAGE0); | |
1248 | /* Read parameter from card */ | |
1249 | wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2); | |
1250 | wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2); | |
1251 | wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2); | |
1252 | wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2); | |
1253 | wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2); | |
1254 | wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2); | |
1255 | this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start; | |
1256 | this->esbq_req_end += this->esbq_req_start; | |
1257 | this->esbq_confirm = this->esbq_confirm_start; | |
1258 | this->esbq_confirm_end += this->esbq_confirm_start; | |
1259 | /* Initial Tx Buffer */ | |
1260 | this->tx_buffer_cnt = 1; | |
1261 | ptr = this->tx_buffer_head; | |
1262 | next = ptr + WL3501_BLKSZ; | |
1263 | while ((next - this->tx_buffer_head) < this->tx_buffer_size) { | |
1264 | this->tx_buffer_cnt++; | |
1265 | wl3501_set_to_wla(this, ptr, &next, sizeof(next)); | |
1266 | ptr = next; | |
1267 | next = ptr + WL3501_BLKSZ; | |
1268 | } | |
1269 | rc = 0; | |
1270 | next = 0; | |
1271 | wl3501_set_to_wla(this, ptr, &next, sizeof(next)); | |
1272 | this->tx_buffer_tail = ptr; | |
1273 | out: | |
1274 | return rc; | |
1275 | fail: | |
1276 | printk(KERN_WARNING "%s: failed!\n", __FUNCTION__); | |
1277 | goto out; | |
1278 | } | |
1279 | ||
1280 | static int wl3501_close(struct net_device *dev) | |
1281 | { | |
1282 | struct wl3501_card *this = dev->priv; | |
1283 | int rc = -ENODEV; | |
1284 | unsigned long flags; | |
1285 | dev_link_t *link; | |
1286 | ||
1287 | spin_lock_irqsave(&this->lock, flags); | |
1288 | /* Check if the device is in wl3501_dev_list */ | |
1289 | for (link = wl3501_dev_list; link; link = link->next) | |
1290 | if (link->priv == dev) | |
1291 | break; | |
1292 | if (!link) | |
1293 | goto out; | |
1294 | link->open--; | |
1295 | ||
1296 | /* Stop wl3501_hard_start_xmit() from now on */ | |
1297 | netif_stop_queue(dev); | |
1298 | wl3501_ack_interrupt(this); | |
1299 | ||
1300 | /* Mask interrupts from the SUTRO */ | |
1301 | wl3501_block_interrupt(this); | |
1302 | ||
1303 | rc = 0; | |
1304 | printk(KERN_INFO "%s: WL3501 closed\n", dev->name); | |
1305 | out: | |
1306 | spin_unlock_irqrestore(&this->lock, flags); | |
1307 | return rc; | |
1308 | } | |
1309 | ||
1310 | /** | |
1311 | * wl3501_reset - Reset the SUTRO. | |
1312 | * @dev - network device | |
1313 | * | |
1314 | * It is almost the same as wl3501_open(). In fact, we may just wl3501_close() | |
1315 | * and wl3501_open() again, but I wouldn't like to free_irq() when the driver | |
1316 | * is running. It seems to be dangerous. | |
1317 | */ | |
1318 | static int wl3501_reset(struct net_device *dev) | |
1319 | { | |
1320 | struct wl3501_card *this = dev->priv; | |
1321 | int rc = -ENODEV; | |
1322 | ||
1323 | wl3501_block_interrupt(this); | |
1324 | ||
1325 | if (wl3501_init_firmware(this)) { | |
1326 | printk(KERN_WARNING "%s: Can't initialize Firmware!\n", | |
1327 | dev->name); | |
1328 | /* Free IRQ, and mark IRQ as unused */ | |
1329 | free_irq(dev->irq, dev); | |
1330 | goto out; | |
1331 | } | |
1332 | ||
1333 | /* | |
1334 | * Queue has to be started only when the Card is Started | |
1335 | */ | |
1336 | netif_stop_queue(dev); | |
1337 | this->adhoc_times = 0; | |
1338 | wl3501_ack_interrupt(this); | |
1339 | wl3501_unblock_interrupt(this); | |
1340 | wl3501_mgmt_scan(this, 100); | |
1341 | dprintk(1, "%s: device reset", dev->name); | |
1342 | rc = 0; | |
1343 | out: | |
1344 | return rc; | |
1345 | } | |
1346 | ||
1347 | static void wl3501_tx_timeout(struct net_device *dev) | |
1348 | { | |
1349 | struct wl3501_card *this = dev->priv; | |
1350 | struct net_device_stats *stats = &this->stats; | |
1351 | unsigned long flags; | |
1352 | int rc; | |
1353 | ||
1354 | stats->tx_errors++; | |
1355 | spin_lock_irqsave(&this->lock, flags); | |
1356 | rc = wl3501_reset(dev); | |
1357 | spin_unlock_irqrestore(&this->lock, flags); | |
1358 | if (rc) | |
1359 | printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n", | |
1360 | dev->name, rc); | |
1361 | else { | |
1362 | dev->trans_start = jiffies; | |
1363 | netif_wake_queue(dev); | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | /* | |
1368 | * Return : 0 - OK | |
1369 | * 1 - Could not transmit (dev_queue_xmit will queue it) | |
1370 | * and try to sent it later | |
1371 | */ | |
1372 | static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
1373 | { | |
1374 | int enabled, rc; | |
1375 | struct wl3501_card *this = dev->priv; | |
1376 | unsigned long flags; | |
1377 | ||
1378 | spin_lock_irqsave(&this->lock, flags); | |
1379 | enabled = wl3501_block_interrupt(this); | |
1380 | dev->trans_start = jiffies; | |
1381 | rc = wl3501_send_pkt(this, skb->data, skb->len); | |
1382 | if (enabled) | |
1383 | wl3501_unblock_interrupt(this); | |
1384 | if (rc) { | |
1385 | ++this->stats.tx_dropped; | |
1386 | netif_stop_queue(dev); | |
1387 | } else { | |
1388 | ++this->stats.tx_packets; | |
1389 | this->stats.tx_bytes += skb->len; | |
1390 | kfree_skb(skb); | |
1391 | ||
1392 | if (this->tx_buffer_cnt < 2) | |
1393 | netif_stop_queue(dev); | |
1394 | } | |
1395 | spin_unlock_irqrestore(&this->lock, flags); | |
1396 | return rc; | |
1397 | } | |
1398 | ||
1399 | static int wl3501_open(struct net_device *dev) | |
1400 | { | |
1401 | int rc = -ENODEV; | |
1402 | struct wl3501_card *this = dev->priv; | |
1403 | unsigned long flags; | |
1404 | dev_link_t *link; | |
1405 | ||
1406 | spin_lock_irqsave(&this->lock, flags); | |
1407 | /* Check if the device is in wl3501_dev_list */ | |
1408 | for (link = wl3501_dev_list; link; link = link->next) | |
1409 | if (link->priv == dev) | |
1410 | break; | |
1411 | if (!DEV_OK(link)) | |
1412 | goto out; | |
1413 | netif_device_attach(dev); | |
1414 | link->open++; | |
1415 | ||
1416 | /* Initial WL3501 firmware */ | |
1417 | dprintk(1, "%s: Initialize WL3501 firmware...", dev->name); | |
1418 | if (wl3501_init_firmware(this)) | |
1419 | goto fail; | |
1420 | /* Initial device variables */ | |
1421 | this->adhoc_times = 0; | |
1422 | /* Acknowledge Interrupt, for cleaning last state */ | |
1423 | wl3501_ack_interrupt(this); | |
1424 | ||
1425 | /* Enable interrupt from card after all */ | |
1426 | wl3501_unblock_interrupt(this); | |
1427 | wl3501_mgmt_scan(this, 100); | |
1428 | rc = 0; | |
1429 | dprintk(1, "%s: WL3501 opened", dev->name); | |
1430 | printk(KERN_INFO "%s: Card Name: %s\n" | |
1431 | "%s: Firmware Date: %s\n", | |
1432 | dev->name, this->card_name, | |
1433 | dev->name, this->firmware_date); | |
1434 | out: | |
1435 | spin_unlock_irqrestore(&this->lock, flags); | |
1436 | return rc; | |
1437 | fail: | |
1438 | printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name); | |
1439 | goto out; | |
1440 | } | |
1441 | ||
1442 | struct net_device_stats *wl3501_get_stats(struct net_device *dev) | |
1443 | { | |
1444 | struct wl3501_card *this = dev->priv; | |
1445 | ||
1446 | return &this->stats; | |
1447 | } | |
1448 | ||
1449 | struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) | |
1450 | { | |
1451 | struct wl3501_card *this = dev->priv; | |
1452 | struct iw_statistics *wstats = &this->wstats; | |
1453 | u32 value; /* size checked: it is u32 */ | |
1454 | ||
1455 | memset(wstats, 0, sizeof(*wstats)); | |
1456 | wstats->status = netif_running(dev); | |
1457 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT, | |
1458 | &value, sizeof(value))) | |
1459 | wstats->discard.code += value; | |
1460 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT, | |
1461 | &value, sizeof(value))) | |
1462 | wstats->discard.code += value; | |
1463 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT, | |
1464 | &value, sizeof(value))) | |
1465 | wstats->discard.code += value; | |
1466 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT, | |
1467 | &value, sizeof(value))) | |
1468 | wstats->discard.retries = value; | |
1469 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT, | |
1470 | &value, sizeof(value))) | |
1471 | wstats->discard.misc += value; | |
1472 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT, | |
1473 | &value, sizeof(value))) | |
1474 | wstats->discard.misc += value; | |
1475 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT, | |
1476 | &value, sizeof(value))) | |
1477 | wstats->discard.misc += value; | |
1478 | if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT, | |
1479 | &value, sizeof(value))) | |
1480 | wstats->discard.misc += value; | |
1481 | return wstats; | |
1482 | } | |
1483 | ||
1484 | static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
1485 | { | |
1486 | strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver)); | |
1487 | } | |
1488 | ||
1489 | static struct ethtool_ops ops = { | |
1490 | .get_drvinfo = wl3501_get_drvinfo | |
1491 | }; | |
1492 | ||
1493 | /** | |
1494 | * wl3501_detach - deletes a driver "instance" | |
1495 | * @link - FILL_IN | |
1496 | * | |
1497 | * This deletes a driver "instance". The device is de-registered with Card | |
1498 | * Services. If it has been released, all local data structures are freed. | |
1499 | * Otherwise, the structures will be freed when the device is released. | |
1500 | */ | |
1501 | static void wl3501_detach(dev_link_t *link) | |
1502 | { | |
1503 | dev_link_t **linkp; | |
1504 | ||
1505 | /* Locate device structure */ | |
1506 | for (linkp = &wl3501_dev_list; *linkp; linkp = &(*linkp)->next) | |
1507 | if (*linkp == link) | |
1508 | break; | |
1509 | if (!*linkp) | |
1510 | goto out; | |
1511 | ||
1512 | /* If the device is currently configured and active, we won't actually | |
1513 | * delete it yet. Instead, it is marked so that when the release() | |
1514 | * function is called, that will trigger a proper detach(). */ | |
1515 | ||
1516 | if (link->state & DEV_CONFIG) { | |
1517 | #ifdef PCMCIA_DEBUG | |
1518 | printk(KERN_DEBUG "wl3501_cs: detach postponed, '%s' " | |
1519 | "still locked\n", link->dev->dev_name); | |
1520 | #endif | |
1521 | goto out; | |
1522 | } | |
1523 | ||
1524 | /* Break the link with Card Services */ | |
1525 | if (link->handle) | |
1526 | pcmcia_deregister_client(link->handle); | |
1527 | ||
1528 | /* Unlink device structure, free pieces */ | |
1529 | *linkp = link->next; | |
1530 | ||
1531 | if (link->priv) | |
1532 | free_netdev(link->priv); | |
1533 | kfree(link); | |
1534 | out: | |
1535 | return; | |
1536 | } | |
1537 | ||
1538 | static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info, | |
1539 | union iwreq_data *wrqu, char *extra) | |
1540 | { | |
1541 | strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name)); | |
1542 | return 0; | |
1543 | } | |
1544 | ||
1545 | static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info, | |
1546 | union iwreq_data *wrqu, char *extra) | |
1547 | { | |
1548 | struct wl3501_card *this = dev->priv; | |
1549 | int channel = wrqu->freq.m; | |
1550 | int rc = -EINVAL; | |
1551 | ||
1552 | if (iw_valid_channel(this->reg_domain, channel)) { | |
1553 | this->chan = channel; | |
1554 | rc = wl3501_reset(dev); | |
1555 | } | |
1556 | return rc; | |
1557 | } | |
1558 | ||
1559 | static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info, | |
1560 | union iwreq_data *wrqu, char *extra) | |
1561 | { | |
1562 | struct wl3501_card *this = dev->priv; | |
1563 | ||
1564 | wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000; | |
1565 | wrqu->freq.e = 1; | |
1566 | return 0; | |
1567 | } | |
1568 | ||
1569 | static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info, | |
1570 | union iwreq_data *wrqu, char *extra) | |
1571 | { | |
1572 | int rc = -EINVAL; | |
1573 | ||
1574 | if (wrqu->mode == IW_MODE_INFRA || | |
1575 | wrqu->mode == IW_MODE_ADHOC || | |
1576 | wrqu->mode == IW_MODE_AUTO) { | |
1577 | struct wl3501_card *this = dev->priv; | |
1578 | ||
1579 | this->net_type = wrqu->mode; | |
1580 | rc = wl3501_reset(dev); | |
1581 | } | |
1582 | return rc; | |
1583 | } | |
1584 | ||
1585 | static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info, | |
1586 | union iwreq_data *wrqu, char *extra) | |
1587 | { | |
1588 | struct wl3501_card *this = dev->priv; | |
1589 | ||
1590 | wrqu->mode = this->net_type; | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info, | |
1595 | union iwreq_data *wrqu, char *extra) | |
1596 | { | |
1597 | struct wl3501_card *this = dev->priv; | |
1598 | ||
1599 | wrqu->sens.value = this->rssi; | |
1600 | wrqu->sens.disabled = !wrqu->sens.value; | |
1601 | wrqu->sens.fixed = 1; | |
1602 | return 0; | |
1603 | } | |
1604 | ||
1605 | static int wl3501_get_range(struct net_device *dev, | |
1606 | struct iw_request_info *info, | |
1607 | union iwreq_data *wrqu, char *extra) | |
1608 | { | |
1609 | struct iw_range *range = (struct iw_range *)extra; | |
1610 | ||
1611 | /* Set the length (very important for backward compatibility) */ | |
1612 | wrqu->data.length = sizeof(*range); | |
1613 | ||
1614 | /* Set all the info we don't care or don't know about to zero */ | |
1615 | memset(range, 0, sizeof(*range)); | |
1616 | ||
1617 | /* Set the Wireless Extension versions */ | |
1618 | range->we_version_compiled = WIRELESS_EXT; | |
1619 | range->we_version_source = 1; | |
1620 | range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */ | |
1621 | /* FIXME: study the code to fill in more fields... */ | |
1622 | return 0; | |
1623 | } | |
1624 | ||
1625 | static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info, | |
1626 | union iwreq_data *wrqu, char *extra) | |
1627 | { | |
1628 | struct wl3501_card *this = dev->priv; | |
1629 | static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 }; | |
1630 | int rc = -EINVAL; | |
1631 | ||
1632 | /* FIXME: we support other ARPHRDs...*/ | |
1633 | if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) | |
1634 | goto out; | |
1635 | if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) { | |
1636 | /* FIXME: rescan? */ | |
1637 | } else | |
1638 | memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); | |
1639 | /* FIXME: rescan? deassoc & scan? */ | |
1640 | rc = 0; | |
1641 | out: | |
1642 | return rc; | |
1643 | } | |
1644 | ||
1645 | static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info, | |
1646 | union iwreq_data *wrqu, char *extra) | |
1647 | { | |
1648 | struct wl3501_card *this = dev->priv; | |
1649 | ||
1650 | wrqu->ap_addr.sa_family = ARPHRD_ETHER; | |
1651 | memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN); | |
1652 | return 0; | |
1653 | } | |
1654 | ||
1655 | static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info, | |
1656 | union iwreq_data *wrqu, char *extra) | |
1657 | { | |
1658 | /* | |
1659 | * FIXME: trigger scanning with a reset, yes, I'm lazy | |
1660 | */ | |
1661 | return wl3501_reset(dev); | |
1662 | } | |
1663 | ||
1664 | static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info, | |
1665 | union iwreq_data *wrqu, char *extra) | |
1666 | { | |
1667 | struct wl3501_card *this = dev->priv; | |
1668 | int i; | |
1669 | char *current_ev = extra; | |
1670 | struct iw_event iwe; | |
1671 | ||
1672 | for (i = 0; i < this->bss_cnt; ++i) { | |
1673 | iwe.cmd = SIOCGIWAP; | |
1674 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; | |
1675 | memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN); | |
1676 | current_ev = iwe_stream_add_event(current_ev, | |
1677 | extra + IW_SCAN_MAX_DATA, | |
1678 | &iwe, IW_EV_ADDR_LEN); | |
1679 | iwe.cmd = SIOCGIWESSID; | |
1680 | iwe.u.data.flags = 1; | |
1681 | iwe.u.data.length = this->bss_set[i].ssid.el.len; | |
1682 | current_ev = iwe_stream_add_point(current_ev, | |
1683 | extra + IW_SCAN_MAX_DATA, | |
1684 | &iwe, | |
1685 | this->bss_set[i].ssid.essid); | |
1686 | iwe.cmd = SIOCGIWMODE; | |
1687 | iwe.u.mode = this->bss_set[i].bss_type; | |
1688 | current_ev = iwe_stream_add_event(current_ev, | |
1689 | extra + IW_SCAN_MAX_DATA, | |
1690 | &iwe, IW_EV_UINT_LEN); | |
1691 | iwe.cmd = SIOCGIWFREQ; | |
1692 | iwe.u.freq.m = this->bss_set[i].ds_pset.chan; | |
1693 | iwe.u.freq.e = 0; | |
1694 | current_ev = iwe_stream_add_event(current_ev, | |
1695 | extra + IW_SCAN_MAX_DATA, | |
1696 | &iwe, IW_EV_FREQ_LEN); | |
1697 | iwe.cmd = SIOCGIWENCODE; | |
1698 | if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY) | |
1699 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; | |
1700 | else | |
1701 | iwe.u.data.flags = IW_ENCODE_DISABLED; | |
1702 | iwe.u.data.length = 0; | |
1703 | current_ev = iwe_stream_add_point(current_ev, | |
1704 | extra + IW_SCAN_MAX_DATA, | |
1705 | &iwe, NULL); | |
1706 | } | |
1707 | /* Length of data */ | |
1708 | wrqu->data.length = (current_ev - extra); | |
1709 | wrqu->data.flags = 0; /* FIXME: set properly these flags */ | |
1710 | return 0; | |
1711 | } | |
1712 | ||
1713 | static int wl3501_set_essid(struct net_device *dev, | |
1714 | struct iw_request_info *info, | |
1715 | union iwreq_data *wrqu, char *extra) | |
1716 | { | |
1717 | struct wl3501_card *this = dev->priv; | |
1718 | ||
1719 | if (wrqu->data.flags) { | |
1720 | iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, | |
1721 | &this->essid.el, | |
1722 | extra, wrqu->data.length); | |
1723 | } else { /* We accept any ESSID */ | |
1724 | iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, | |
1725 | &this->essid.el, "ANY", 3); | |
1726 | } | |
1727 | return wl3501_reset(dev); | |
1728 | } | |
1729 | ||
1730 | static int wl3501_get_essid(struct net_device *dev, | |
1731 | struct iw_request_info *info, | |
1732 | union iwreq_data *wrqu, char *extra) | |
1733 | { | |
1734 | struct wl3501_card *this = dev->priv; | |
1735 | unsigned long flags; | |
1736 | ||
1737 | spin_lock_irqsave(&this->lock, flags); | |
1738 | wrqu->essid.flags = 1; | |
1739 | wrqu->essid.length = this->essid.el.len; | |
1740 | memcpy(extra, this->essid.essid, this->essid.el.len); | |
1741 | spin_unlock_irqrestore(&this->lock, flags); | |
1742 | return 0; | |
1743 | } | |
1744 | ||
1745 | static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info, | |
1746 | union iwreq_data *wrqu, char *extra) | |
1747 | { | |
1748 | struct wl3501_card *this = dev->priv; | |
1749 | ||
1750 | if (wrqu->data.length > sizeof(this->nick)) | |
1751 | return -E2BIG; | |
1752 | strlcpy(this->nick, extra, wrqu->data.length); | |
1753 | return 0; | |
1754 | } | |
1755 | ||
1756 | static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info, | |
1757 | union iwreq_data *wrqu, char *extra) | |
1758 | { | |
1759 | struct wl3501_card *this = dev->priv; | |
1760 | ||
1761 | strlcpy(extra, this->nick, 32); | |
1762 | wrqu->data.length = strlen(extra); | |
1763 | return 0; | |
1764 | } | |
1765 | ||
1766 | static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info, | |
1767 | union iwreq_data *wrqu, char *extra) | |
1768 | { | |
1769 | /* | |
1770 | * FIXME: have to see from where to get this info, perhaps this card | |
1771 | * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most | |
1772 | * common with the Planet Access Points. -acme | |
1773 | */ | |
1774 | wrqu->bitrate.value = 2000000; | |
1775 | wrqu->bitrate.fixed = 1; | |
1776 | return 0; | |
1777 | } | |
1778 | ||
1779 | static int wl3501_get_rts_threshold(struct net_device *dev, | |
1780 | struct iw_request_info *info, | |
1781 | union iwreq_data *wrqu, char *extra) | |
1782 | { | |
1783 | u16 threshold; /* size checked: it is u16 */ | |
1784 | struct wl3501_card *this = dev->priv; | |
1785 | int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD, | |
1786 | &threshold, sizeof(threshold)); | |
1787 | if (!rc) { | |
1788 | wrqu->rts.value = threshold; | |
1789 | wrqu->rts.disabled = threshold >= 2347; | |
1790 | wrqu->rts.fixed = 1; | |
1791 | } | |
1792 | return rc; | |
1793 | } | |
1794 | ||
1795 | static int wl3501_get_frag_threshold(struct net_device *dev, | |
1796 | struct iw_request_info *info, | |
1797 | union iwreq_data *wrqu, char *extra) | |
1798 | { | |
1799 | u16 threshold; /* size checked: it is u16 */ | |
1800 | struct wl3501_card *this = dev->priv; | |
1801 | int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD, | |
1802 | &threshold, sizeof(threshold)); | |
1803 | if (!rc) { | |
1804 | wrqu->frag.value = threshold; | |
1805 | wrqu->frag.disabled = threshold >= 2346; | |
1806 | wrqu->frag.fixed = 1; | |
1807 | } | |
1808 | return rc; | |
1809 | } | |
1810 | ||
1811 | static int wl3501_get_txpow(struct net_device *dev, | |
1812 | struct iw_request_info *info, | |
1813 | union iwreq_data *wrqu, char *extra) | |
1814 | { | |
1815 | u16 txpow; | |
1816 | struct wl3501_card *this = dev->priv; | |
1817 | int rc = wl3501_get_mib_value(this, | |
1818 | WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL, | |
1819 | &txpow, sizeof(txpow)); | |
1820 | if (!rc) { | |
1821 | wrqu->txpower.value = txpow; | |
1822 | wrqu->txpower.disabled = 0; | |
1823 | /* | |
1824 | * From the MIB values I think this can be configurable, | |
1825 | * as it lists several tx power levels -acme | |
1826 | */ | |
1827 | wrqu->txpower.fixed = 0; | |
1828 | wrqu->txpower.flags = IW_TXPOW_MWATT; | |
1829 | } | |
1830 | return rc; | |
1831 | } | |
1832 | ||
1833 | static int wl3501_get_retry(struct net_device *dev, | |
1834 | struct iw_request_info *info, | |
1835 | union iwreq_data *wrqu, char *extra) | |
1836 | { | |
1837 | u8 retry; /* size checked: it is u8 */ | |
1838 | struct wl3501_card *this = dev->priv; | |
1839 | int rc = wl3501_get_mib_value(this, | |
1840 | WL3501_MIB_ATTR_LONG_RETRY_LIMIT, | |
1841 | &retry, sizeof(retry)); | |
1842 | if (rc) | |
1843 | goto out; | |
1844 | if (wrqu->retry.flags & IW_RETRY_MAX) { | |
1845 | wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX; | |
1846 | goto set_value; | |
1847 | } | |
1848 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT, | |
1849 | &retry, sizeof(retry)); | |
1850 | if (rc) | |
1851 | goto out; | |
1852 | wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN; | |
1853 | set_value: | |
1854 | wrqu->retry.value = retry; | |
1855 | wrqu->retry.disabled = 0; | |
1856 | out: | |
1857 | return rc; | |
1858 | } | |
1859 | ||
1860 | static int wl3501_get_encode(struct net_device *dev, | |
1861 | struct iw_request_info *info, | |
1862 | union iwreq_data *wrqu, char *extra) | |
1863 | { | |
1864 | u8 implemented, restricted, keys[100], len_keys, tocopy; | |
1865 | struct wl3501_card *this = dev->priv; | |
1866 | int rc = wl3501_get_mib_value(this, | |
1867 | WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED, | |
1868 | &implemented, sizeof(implemented)); | |
1869 | if (rc) | |
1870 | goto out; | |
1871 | if (!implemented) { | |
1872 | wrqu->encoding.flags = IW_ENCODE_DISABLED; | |
1873 | goto out; | |
1874 | } | |
1875 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED, | |
1876 | &restricted, sizeof(restricted)); | |
1877 | if (rc) | |
1878 | goto out; | |
1879 | wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED : | |
1880 | IW_ENCODE_OPEN; | |
1881 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN, | |
1882 | &len_keys, sizeof(len_keys)); | |
1883 | if (rc) | |
1884 | goto out; | |
1885 | rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS, | |
1886 | keys, len_keys); | |
1887 | if (rc) | |
1888 | goto out; | |
1889 | tocopy = min_t(u8, len_keys, wrqu->encoding.length); | |
1890 | tocopy = min_t(u8, tocopy, 100); | |
1891 | wrqu->encoding.length = tocopy; | |
1892 | memset(extra, 0, tocopy); | |
1893 | memcpy(extra, keys, tocopy); | |
1894 | out: | |
1895 | return rc; | |
1896 | } | |
1897 | ||
1898 | static int wl3501_get_power(struct net_device *dev, | |
1899 | struct iw_request_info *info, | |
1900 | union iwreq_data *wrqu, char *extra) | |
1901 | { | |
1902 | u8 pwr_state; | |
1903 | struct wl3501_card *this = dev->priv; | |
1904 | int rc = wl3501_get_mib_value(this, | |
1905 | WL3501_MIB_ATTR_CURRENT_PWR_STATE, | |
1906 | &pwr_state, sizeof(pwr_state)); | |
1907 | if (rc) | |
1908 | goto out; | |
1909 | wrqu->power.disabled = !pwr_state; | |
1910 | wrqu->power.flags = IW_POWER_ON; | |
1911 | out: | |
1912 | return rc; | |
1913 | } | |
1914 | ||
1915 | static const iw_handler wl3501_handler[] = { | |
1916 | [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name, | |
1917 | [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq, | |
1918 | [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq, | |
1919 | [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode, | |
1920 | [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode, | |
1921 | [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens, | |
1922 | [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range, | |
1923 | [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy, | |
1924 | [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy, | |
1925 | [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy, | |
1926 | [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy, | |
1927 | [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap, | |
1928 | [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap, | |
1929 | [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan, | |
1930 | [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan, | |
1931 | [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid, | |
1932 | [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid, | |
1933 | [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick, | |
1934 | [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick, | |
1935 | [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate, | |
1936 | [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold, | |
1937 | [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold, | |
1938 | [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow, | |
1939 | [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry, | |
1940 | [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode, | |
1941 | [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power, | |
1942 | }; | |
1943 | ||
1944 | static const struct iw_handler_def wl3501_handler_def = { | |
1945 | .num_standard = sizeof(wl3501_handler) / sizeof(iw_handler), | |
1946 | .standard = (iw_handler *)wl3501_handler, | |
1947 | .spy_offset = offsetof(struct wl3501_card, spy_data), | |
1948 | }; | |
1949 | ||
1950 | /** | |
1951 | * wl3501_attach - creates an "instance" of the driver | |
1952 | * | |
1953 | * Creates an "instance" of the driver, allocating local data structures for | |
1954 | * one device. The device is registered with Card Services. | |
1955 | * | |
1956 | * The dev_link structure is initialized, but we don't actually configure the | |
1957 | * card at this point -- we wait until we receive a card insertion event. | |
1958 | */ | |
1959 | static dev_link_t *wl3501_attach(void) | |
1960 | { | |
1961 | client_reg_t client_reg; | |
1962 | dev_link_t *link; | |
1963 | struct net_device *dev; | |
1964 | int ret; | |
1965 | ||
1966 | /* Initialize the dev_link_t structure */ | |
1967 | link = kmalloc(sizeof(*link), GFP_KERNEL); | |
1968 | if (!link) | |
1969 | goto out; | |
1970 | memset(link, 0, sizeof(struct dev_link_t)); | |
1971 | ||
1972 | /* The io structure describes IO port mapping */ | |
1973 | link->io.NumPorts1 = 16; | |
1974 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
1975 | link->io.IOAddrLines = 5; | |
1976 | ||
1977 | /* Interrupt setup */ | |
1978 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
1979 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
1980 | link->irq.Handler = wl3501_interrupt; | |
1981 | ||
1982 | /* General socket configuration */ | |
1983 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1984 | link->conf.Vcc = 50; | |
1985 | link->conf.IntType = INT_MEMORY_AND_IO; | |
1986 | link->conf.ConfigIndex = 1; | |
1987 | link->conf.Present = PRESENT_OPTION; | |
1988 | ||
1989 | dev = alloc_etherdev(sizeof(struct wl3501_card)); | |
1990 | if (!dev) | |
1991 | goto out_link; | |
1992 | dev->open = wl3501_open; | |
1993 | dev->stop = wl3501_close; | |
1994 | dev->hard_start_xmit = wl3501_hard_start_xmit; | |
1995 | dev->tx_timeout = wl3501_tx_timeout; | |
1996 | dev->watchdog_timeo = 5 * HZ; | |
1997 | dev->get_stats = wl3501_get_stats; | |
1998 | dev->get_wireless_stats = wl3501_get_wireless_stats; | |
1999 | dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def; | |
2000 | SET_ETHTOOL_OPS(dev, &ops); | |
2001 | netif_stop_queue(dev); | |
2002 | link->priv = link->irq.Instance = dev; | |
2003 | ||
2004 | /* Register with Card Services */ | |
2005 | link->next = wl3501_dev_list; | |
2006 | wl3501_dev_list = link; | |
2007 | client_reg.dev_info = &wl3501_dev_info; | |
2008 | client_reg.EventMask = CS_EVENT_CARD_INSERTION | | |
2009 | CS_EVENT_RESET_PHYSICAL | | |
2010 | CS_EVENT_CARD_RESET | | |
2011 | CS_EVENT_CARD_REMOVAL | | |
2012 | CS_EVENT_PM_SUSPEND | | |
2013 | CS_EVENT_PM_RESUME; | |
2014 | client_reg.event_handler = wl3501_event; | |
2015 | client_reg.Version = 0x0210; | |
2016 | client_reg.event_callback_args.client_data = link; | |
2017 | ret = pcmcia_register_client(&link->handle, &client_reg); | |
2018 | if (ret) { | |
2019 | cs_error(link->handle, RegisterClient, ret); | |
2020 | wl3501_detach(link); | |
2021 | link = NULL; | |
2022 | } | |
2023 | out: | |
2024 | return link; | |
2025 | out_link: | |
2026 | kfree(link); | |
2027 | link = NULL; | |
2028 | goto out; | |
2029 | } | |
2030 | ||
2031 | #define CS_CHECK(fn, ret) \ | |
2032 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) | |
2033 | ||
2034 | /** | |
2035 | * wl3501_config - configure the PCMCIA socket and make eth device available | |
2036 | * @link - FILL_IN | |
2037 | * | |
2038 | * wl3501_config() is scheduled to run after a CARD_INSERTION event is | |
2039 | * received, to configure the PCMCIA socket, and to make the ethernet device | |
2040 | * available to the system. | |
2041 | */ | |
2042 | static void wl3501_config(dev_link_t *link) | |
2043 | { | |
2044 | tuple_t tuple; | |
2045 | cisparse_t parse; | |
2046 | client_handle_t handle = link->handle; | |
2047 | struct net_device *dev = link->priv; | |
2048 | int i = 0, j, last_fn, last_ret; | |
2049 | unsigned char bf[64]; | |
2050 | struct wl3501_card *this; | |
2051 | ||
2052 | /* This reads the card's CONFIG tuple to find its config registers. */ | |
2053 | tuple.Attributes = 0; | |
2054 | tuple.DesiredTuple = CISTPL_CONFIG; | |
2055 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
2056 | tuple.TupleData = bf; | |
2057 | tuple.TupleDataMax = sizeof(bf); | |
2058 | tuple.TupleOffset = 0; | |
2059 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); | |
2060 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); | |
2061 | link->conf.ConfigBase = parse.config.base; | |
2062 | link->conf.Present = parse.config.rmask[0]; | |
2063 | ||
2064 | /* Configure card */ | |
2065 | link->state |= DEV_CONFIG; | |
2066 | ||
2067 | /* Try allocating IO ports. This tries a few fixed addresses. If you | |
2068 | * want, you can also read the card's config table to pick addresses -- | |
2069 | * see the serial driver for an example. */ | |
2070 | ||
2071 | for (j = 0x280; j < 0x400; j += 0x20) { | |
2072 | /* The '^0x300' is so that we probe 0x300-0x3ff first, then | |
2073 | * 0x200-0x2ff, and so on, because this seems safer */ | |
2074 | link->io.BasePort1 = j; | |
2075 | link->io.BasePort2 = link->io.BasePort1 + 0x10; | |
2076 | i = pcmcia_request_io(link->handle, &link->io); | |
2077 | if (i == CS_SUCCESS) | |
2078 | break; | |
2079 | } | |
2080 | if (i != CS_SUCCESS) { | |
2081 | cs_error(link->handle, RequestIO, i); | |
2082 | goto failed; | |
2083 | } | |
2084 | ||
2085 | /* Now allocate an interrupt line. Note that this does not actually | |
2086 | * assign a handler to the interrupt. */ | |
2087 | ||
2088 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); | |
2089 | ||
2090 | /* This actually configures the PCMCIA socket -- setting up the I/O | |
2091 | * windows and the interrupt mapping. */ | |
2092 | ||
2093 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf)); | |
2094 | ||
2095 | dev->irq = link->irq.AssignedIRQ; | |
2096 | dev->base_addr = link->io.BasePort1; | |
2097 | SET_NETDEV_DEV(dev, &handle_to_dev(handle)); | |
2098 | if (register_netdev(dev)) { | |
2099 | printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n"); | |
2100 | goto failed; | |
2101 | } | |
2102 | ||
2103 | SET_MODULE_OWNER(dev); | |
2104 | ||
2105 | this = dev->priv; | |
2106 | /* | |
2107 | * At this point, the dev_node_t structure(s) should be initialized and | |
2108 | * arranged in a linked list at link->dev. | |
2109 | */ | |
2110 | link->dev = &this->node; | |
2111 | link->state &= ~DEV_CONFIG_PENDING; | |
2112 | ||
2113 | this->base_addr = dev->base_addr; | |
2114 | ||
2115 | if (!wl3501_get_flash_mac_addr(this)) { | |
2116 | printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n", | |
2117 | dev->name); | |
2118 | goto failed; | |
2119 | } | |
2120 | strcpy(this->node.dev_name, dev->name); | |
2121 | ||
2122 | /* print probe information */ | |
2123 | printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, MAC addr in flash ROM:", | |
2124 | dev->name, this->base_addr, (int)dev->irq); | |
2125 | for (i = 0; i < 6; i++) { | |
2126 | dev->dev_addr[i] = ((char *)&this->mac_addr)[i]; | |
2127 | printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]); | |
2128 | } | |
2129 | printk("\n"); | |
2130 | /* | |
2131 | * Initialize card parameters - added by jss | |
2132 | */ | |
2133 | this->net_type = IW_MODE_INFRA; | |
2134 | this->bss_cnt = 0; | |
2135 | this->join_sta_bss = 0; | |
2136 | this->adhoc_times = 0; | |
2137 | iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, | |
2138 | "ANY", 3); | |
2139 | this->card_name[0] = '\0'; | |
2140 | this->firmware_date[0] = '\0'; | |
2141 | this->rssi = 255; | |
2142 | this->chan = iw_default_channel(this->reg_domain); | |
2143 | strlcpy(this->nick, "Planet WL3501", sizeof(this->nick)); | |
2144 | spin_lock_init(&this->lock); | |
2145 | init_waitqueue_head(&this->wait); | |
2146 | netif_start_queue(dev); | |
2147 | goto out; | |
2148 | cs_failed: | |
2149 | cs_error(link->handle, last_fn, last_ret); | |
2150 | failed: | |
2151 | wl3501_release(link); | |
2152 | out: | |
2153 | return; | |
2154 | } | |
2155 | ||
2156 | /** | |
2157 | * wl3501_release - unregister the net, release PCMCIA configuration | |
2158 | * @arg - link | |
2159 | * | |
2160 | * After a card is removed, wl3501_release() will unregister the net device, | |
2161 | * and release the PCMCIA configuration. If the device is still open, this | |
2162 | * will be postponed until it is closed. | |
2163 | */ | |
2164 | static void wl3501_release(dev_link_t *link) | |
2165 | { | |
2166 | struct net_device *dev = link->priv; | |
2167 | ||
2168 | /* Unlink the device chain */ | |
2169 | if (link->dev) { | |
2170 | unregister_netdev(dev); | |
2171 | link->dev = NULL; | |
2172 | } | |
2173 | ||
2174 | /* Don't bother checking to see if these succeed or not */ | |
2175 | pcmcia_release_configuration(link->handle); | |
2176 | pcmcia_release_io(link->handle, &link->io); | |
2177 | pcmcia_release_irq(link->handle, &link->irq); | |
2178 | link->state &= ~DEV_CONFIG; | |
2179 | } | |
2180 | ||
2181 | /** | |
2182 | * wl3501_event - The card status event handler | |
2183 | * @event - event | |
2184 | * @pri - priority | |
2185 | * @args - arguments for this event | |
2186 | * | |
2187 | * The card status event handler. Mostly, this schedules other stuff to run | |
2188 | * after an event is received. A CARD_REMOVAL event also sets some flags to | |
2189 | * discourage the net drivers from trying to talk to the card any more. | |
2190 | * | |
2191 | * When a CARD_REMOVAL event is received, we immediately set a flag to block | |
2192 | * future accesses to this device. All the functions that actually access the | |
2193 | * device should check this flag to make sure the card is still present. | |
2194 | */ | |
2195 | static int wl3501_event(event_t event, int pri, event_callback_args_t *args) | |
2196 | { | |
2197 | dev_link_t *link = args->client_data; | |
2198 | struct net_device *dev = link->priv; | |
2199 | ||
2200 | switch (event) { | |
2201 | case CS_EVENT_CARD_REMOVAL: | |
2202 | link->state &= ~DEV_PRESENT; | |
2203 | if (link->state & DEV_CONFIG) { | |
2204 | while (link->open > 0) | |
2205 | wl3501_close(dev); | |
2206 | netif_device_detach(dev); | |
2207 | wl3501_release(link); | |
2208 | } | |
2209 | break; | |
2210 | case CS_EVENT_CARD_INSERTION: | |
2211 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
2212 | wl3501_config(link); | |
2213 | break; | |
2214 | case CS_EVENT_PM_SUSPEND: | |
2215 | link->state |= DEV_SUSPEND; | |
2216 | wl3501_pwr_mgmt(dev->priv, WL3501_SUSPEND); | |
2217 | /* Fall through... */ | |
2218 | case CS_EVENT_RESET_PHYSICAL: | |
2219 | if (link->state & DEV_CONFIG) { | |
2220 | if (link->open) | |
2221 | netif_device_detach(dev); | |
2222 | pcmcia_release_configuration(link->handle); | |
2223 | } | |
2224 | break; | |
2225 | case CS_EVENT_PM_RESUME: | |
2226 | link->state &= ~DEV_SUSPEND; | |
2227 | wl3501_pwr_mgmt(dev->priv, WL3501_RESUME); | |
2228 | /* Fall through... */ | |
2229 | case CS_EVENT_CARD_RESET: | |
2230 | if (link->state & DEV_CONFIG) { | |
2231 | pcmcia_request_configuration(link->handle, &link->conf); | |
2232 | if (link->open) { | |
2233 | wl3501_reset(dev); | |
2234 | netif_device_attach(dev); | |
2235 | } | |
2236 | } | |
2237 | break; | |
2238 | } | |
2239 | return 0; | |
2240 | } | |
2241 | ||
2242 | static struct pcmcia_driver wl3501_driver = { | |
2243 | .owner = THIS_MODULE, | |
2244 | .drv = { | |
2245 | .name = "wl3501_cs", | |
2246 | }, | |
2247 | .attach = wl3501_attach, | |
2248 | .detach = wl3501_detach, | |
2249 | }; | |
2250 | ||
2251 | static int __init wl3501_init_module(void) | |
2252 | { | |
2253 | return pcmcia_register_driver(&wl3501_driver); | |
2254 | } | |
2255 | ||
2256 | static void __exit wl3501_exit_module(void) | |
2257 | { | |
2258 | dprintk(0, ": unloading"); | |
2259 | pcmcia_unregister_driver(&wl3501_driver); | |
2260 | BUG_ON(wl3501_dev_list != NULL); | |
2261 | } | |
2262 | ||
2263 | module_init(wl3501_init_module); | |
2264 | module_exit(wl3501_exit_module); | |
2265 | ||
2266 | MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, " | |
2267 | "Arnaldo Carvalho de Melo <acme@conectiva.com.br>," | |
2268 | "Gustavo Niemeyer <niemeyer@conectiva.com>"); | |
2269 | MODULE_DESCRIPTION("Planet wl3501 wireless driver"); | |
2270 | MODULE_LICENSE("GPL"); |