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1 /*
2  * Copyright (c) 2008-2011 Atheros Communications Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18 
19 #include <linux/nl80211.h>
20 #include <linux/pci.h>
21 #include <linux/pci-aspm.h>
22 #include <linux/ath9k_platform.h>
23 #include <linux/module.h>
24 #include "ath9k.h"
25 
26 static const struct pci_device_id ath_pci_id_table[] = {
27 	{ PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI   */
28 	{ PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
29 	{ PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI   */
30 	{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
31 
32 #ifdef CONFIG_ATH9K_PCOEM
33 	/* Mini PCI AR9220 MB92 cards: Compex WLM200NX, Wistron DNMA-92 */
34 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
35 			 0x0029,
36 			 PCI_VENDOR_ID_ATHEROS,
37 			 0x2096),
38 	  .driver_data = ATH9K_PCI_LED_ACT_HI },
39 #endif
40 
41 	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
42 
43 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
44 			 0x002A,
45 			 PCI_VENDOR_ID_AZWAVE,
46 			 0x1C71),
47 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
48 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
49 			 0x002A,
50 			 PCI_VENDOR_ID_FOXCONN,
51 			 0xE01F),
52 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
53 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
54 			 0x002A,
55 			 0x11AD, /* LITEON */
56 			 0x6632),
57 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
58 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
59 			 0x002A,
60 			 0x11AD, /* LITEON */
61 			 0x6642),
62 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
63 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
64 			 0x002A,
65 			 PCI_VENDOR_ID_QMI,
66 			 0x0306),
67 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
68 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
69 			 0x002A,
70 			 0x185F, /* WNC */
71 			 0x309D),
72 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
73 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
74 			 0x002A,
75 			 0x10CF, /* Fujitsu */
76 			 0x147C),
77 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
78 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
79 			 0x002A,
80 			 0x10CF, /* Fujitsu */
81 			 0x147D),
82 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
83 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
84 			 0x002A,
85 			 0x10CF, /* Fujitsu */
86 			 0x1536),
87 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
88 
89 	/* AR9285 card for Asus */
90 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
91 			 0x002B,
92 			 PCI_VENDOR_ID_AZWAVE,
93 			 0x2C37),
94 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
95 
96 	{ PCI_VDEVICE(ATHEROS, 0x002B) }, /* PCI-E */
97 	{ PCI_VDEVICE(ATHEROS, 0x002C) }, /* PCI-E 802.11n bonded out */
98 	{ PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI   */
99 	{ PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */
100 
101 	/* Killer Wireless (3x3) */
102 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
103 			 0x0030,
104 			 0x1A56,
105 			 0x2000),
106 	  .driver_data = ATH9K_PCI_KILLER },
107 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
108 			 0x0030,
109 			 0x1A56,
110 			 0x2001),
111 	  .driver_data = ATH9K_PCI_KILLER },
112 
113 	{ PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E  AR9300 */
114 
115 	/* PCI-E CUS198 */
116 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
117 			 0x0032,
118 			 PCI_VENDOR_ID_AZWAVE,
119 			 0x2086),
120 	  .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
121 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
122 			 0x0032,
123 			 PCI_VENDOR_ID_AZWAVE,
124 			 0x1237),
125 	  .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
126 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
127 			 0x0032,
128 			 PCI_VENDOR_ID_AZWAVE,
129 			 0x2126),
130 	  .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
131 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
132 			 0x0032,
133 			 PCI_VENDOR_ID_AZWAVE,
134 			 0x126A),
135 	  .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
136 
137 	/* PCI-E CUS230 */
138 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
139 			 0x0032,
140 			 PCI_VENDOR_ID_AZWAVE,
141 			 0x2152),
142 	  .driver_data = ATH9K_PCI_CUS230 | ATH9K_PCI_BT_ANT_DIV },
143 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
144 			 0x0032,
145 			 PCI_VENDOR_ID_FOXCONN,
146 			 0xE075),
147 	  .driver_data = ATH9K_PCI_CUS230 | ATH9K_PCI_BT_ANT_DIV },
148 
149 	/* WB225 */
150 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
151 			 0x0032,
152 			 PCI_VENDOR_ID_ATHEROS,
153 			 0x3119),
154 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
155 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
156 			 0x0032,
157 			 PCI_VENDOR_ID_ATHEROS,
158 			 0x3122),
159 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
160 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
161 			 0x0032,
162 			 0x185F, /* WNC */
163 			 0x3119),
164 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
165 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
166 			 0x0032,
167 			 0x185F, /* WNC */
168 			 0x3027),
169 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
170 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
171 			 0x0032,
172 			 PCI_VENDOR_ID_SAMSUNG,
173 			 0x4105),
174 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
175 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
176 			 0x0032,
177 			 PCI_VENDOR_ID_SAMSUNG,
178 			 0x4106),
179 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
180 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
181 			 0x0032,
182 			 PCI_VENDOR_ID_SAMSUNG,
183 			 0x410D),
184 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
185 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
186 			 0x0032,
187 			 PCI_VENDOR_ID_SAMSUNG,
188 			 0x410E),
189 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
190 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
191 			 0x0032,
192 			 PCI_VENDOR_ID_SAMSUNG,
193 			 0x410F),
194 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
195 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
196 			 0x0032,
197 			 PCI_VENDOR_ID_SAMSUNG,
198 			 0xC706),
199 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
200 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
201 			 0x0032,
202 			 PCI_VENDOR_ID_SAMSUNG,
203 			 0xC680),
204 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
205 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
206 			 0x0032,
207 			 PCI_VENDOR_ID_SAMSUNG,
208 			 0xC708),
209 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
210 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
211 			 0x0032,
212 			 PCI_VENDOR_ID_LENOVO,
213 			 0x3218),
214 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
215 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
216 			 0x0032,
217 			 PCI_VENDOR_ID_LENOVO,
218 			 0x3219),
219 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
220 
221 	/* AR9485 cards with PLL power-save disabled by default. */
222 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
223 			 0x0032,
224 			 PCI_VENDOR_ID_AZWAVE,
225 			 0x2C97),
226 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
227 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
228 			 0x0032,
229 			 PCI_VENDOR_ID_AZWAVE,
230 			 0x2100),
231 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
232 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
233 			 0x0032,
234 			 0x1C56, /* ASKEY */
235 			 0x4001),
236 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
237 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
238 			 0x0032,
239 			 0x11AD, /* LITEON */
240 			 0x6627),
241 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
242 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
243 			 0x0032,
244 			 0x11AD, /* LITEON */
245 			 0x6628),
246 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
247 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
248 			 0x0032,
249 			 PCI_VENDOR_ID_FOXCONN,
250 			 0xE04E),
251 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
252 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
253 			 0x0032,
254 			 PCI_VENDOR_ID_FOXCONN,
255 			 0xE04F),
256 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
257 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
258 			 0x0032,
259 			 0x144F, /* ASKEY */
260 			 0x7197),
261 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
262 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
263 			 0x0032,
264 			 0x1B9A, /* XAVI */
265 			 0x2000),
266 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
267 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
268 			 0x0032,
269 			 0x1B9A, /* XAVI */
270 			 0x2001),
271 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
272 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
273 			 0x0032,
274 			 PCI_VENDOR_ID_AZWAVE,
275 			 0x1186),
276 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
277 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
278 			 0x0032,
279 			 PCI_VENDOR_ID_AZWAVE,
280 			 0x1F86),
281 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
282 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
283 			 0x0032,
284 			 PCI_VENDOR_ID_AZWAVE,
285 			 0x1195),
286 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
287 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
288 			 0x0032,
289 			 PCI_VENDOR_ID_AZWAVE,
290 			 0x1F95),
291 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
292 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
293 			 0x0032,
294 			 0x1B9A, /* XAVI */
295 			 0x1C00),
296 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
297 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
298 			 0x0032,
299 			 0x1B9A, /* XAVI */
300 			 0x1C01),
301 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
302 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
303 			 0x0032,
304 			 PCI_VENDOR_ID_ASUSTEK,
305 			 0x850D),
306 	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
307 
308 	{ PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
309 	{ PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
310 
311 	/* PCI-E CUS217 */
312 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
313 			 0x0034,
314 			 PCI_VENDOR_ID_AZWAVE,
315 			 0x2116),
316 	  .driver_data = ATH9K_PCI_CUS217 },
317 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
318 			 0x0034,
319 			 0x11AD, /* LITEON */
320 			 0x6661),
321 	  .driver_data = ATH9K_PCI_CUS217 },
322 
323 	/* AR9462 with WoW support */
324 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
325 			 0x0034,
326 			 PCI_VENDOR_ID_ATHEROS,
327 			 0x3117),
328 	  .driver_data = ATH9K_PCI_WOW },
329 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
330 			 0x0034,
331 			 PCI_VENDOR_ID_LENOVO,
332 			 0x3214),
333 	  .driver_data = ATH9K_PCI_WOW },
334 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
335 			 0x0034,
336 			 PCI_VENDOR_ID_ATTANSIC,
337 			 0x0091),
338 	  .driver_data = ATH9K_PCI_WOW },
339 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
340 			 0x0034,
341 			 PCI_VENDOR_ID_AZWAVE,
342 			 0x2110),
343 	  .driver_data = ATH9K_PCI_WOW },
344 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
345 			 0x0034,
346 			 PCI_VENDOR_ID_ASUSTEK,
347 			 0x850E),
348 	  .driver_data = ATH9K_PCI_WOW },
349 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
350 			 0x0034,
351 			 0x11AD, /* LITEON */
352 			 0x6631),
353 	  .driver_data = ATH9K_PCI_WOW },
354 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
355 			 0x0034,
356 			 0x11AD, /* LITEON */
357 			 0x6641),
358 	  .driver_data = ATH9K_PCI_WOW },
359 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
360 			 0x0034,
361 			 PCI_VENDOR_ID_HP,
362 			 0x1864),
363 	  .driver_data = ATH9K_PCI_WOW },
364 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
365 			 0x0034,
366 			 0x14CD, /* USI */
367 			 0x0063),
368 	  .driver_data = ATH9K_PCI_WOW },
369 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
370 			 0x0034,
371 			 0x14CD, /* USI */
372 			 0x0064),
373 	  .driver_data = ATH9K_PCI_WOW },
374 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
375 			 0x0034,
376 			 0x10CF, /* Fujitsu */
377 			 0x1783),
378 	  .driver_data = ATH9K_PCI_WOW },
379 
380 	/* Killer Wireless (2x2) */
381 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
382 			 0x0030,
383 			 0x1A56,
384 			 0x2003),
385 	  .driver_data = ATH9K_PCI_KILLER },
386 
387 	{ PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
388 	{ PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
389 
390 	/* CUS252 */
391 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
392 			 0x0036,
393 			 PCI_VENDOR_ID_ATHEROS,
394 			 0x3028),
395 	  .driver_data = ATH9K_PCI_CUS252 |
396 			 ATH9K_PCI_AR9565_2ANT |
397 			 ATH9K_PCI_BT_ANT_DIV },
398 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
399 			 0x0036,
400 			 PCI_VENDOR_ID_AZWAVE,
401 			 0x2176),
402 	  .driver_data = ATH9K_PCI_CUS252 |
403 			 ATH9K_PCI_AR9565_2ANT |
404 			 ATH9K_PCI_BT_ANT_DIV },
405 
406 	/* WB335 1-ANT */
407 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
408 			 0x0036,
409 			 PCI_VENDOR_ID_FOXCONN,
410 			 0xE068),
411 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
412 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
413 			 0x0036,
414 			 0x185F, /* WNC */
415 			 0xA119),
416 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
417 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
418 			 0x0036,
419 			 0x11AD, /* LITEON */
420 			 0x0632),
421 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
422 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
423 			 0x0036,
424 			 0x11AD, /* LITEON */
425 			 0x06B2),
426 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
427 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
428 			 0x0036,
429 			 0x11AD, /* LITEON */
430 			 0x0842),
431 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
432 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
433 			 0x0036,
434 			 0x11AD, /* LITEON */
435 			 0x6671),
436 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
437 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
438 			 0x0036,
439 			 0x1B9A, /* XAVI */
440 			 0x2811),
441 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
442 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
443 			 0x0036,
444 			 0x1B9A, /* XAVI */
445 			 0x2812),
446 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
447 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
448 			 0x0036,
449 			 0x1B9A, /* XAVI */
450 			 0x28A1),
451 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
452 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
453 			 0x0036,
454 			 PCI_VENDOR_ID_AZWAVE,
455 			 0x218A),
456 	  .driver_data = ATH9K_PCI_AR9565_1ANT },
457 
458 	/* WB335 1-ANT / Antenna Diversity */
459 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
460 			 0x0036,
461 			 PCI_VENDOR_ID_ATHEROS,
462 			 0x3025),
463 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
464 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
465 			 0x0036,
466 			 PCI_VENDOR_ID_ATHEROS,
467 			 0x3026),
468 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
469 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
470 			 0x0036,
471 			 PCI_VENDOR_ID_ATHEROS,
472 			 0x302B),
473 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
474 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
475 			 0x0036,
476 			 PCI_VENDOR_ID_FOXCONN,
477 			 0xE069),
478 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
479 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
480 			 0x0036,
481 			 0x185F, /* WNC */
482 			 0x3028),
483 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
484 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
485 			 0x0036,
486 			 0x11AD, /* LITEON */
487 			 0x0622),
488 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
489 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
490 			 0x0036,
491 			 0x11AD, /* LITEON */
492 			 0x0672),
493 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
494 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
495 			 0x0036,
496 			 0x11AD, /* LITEON */
497 			 0x0662),
498 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
499 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
500 			 0x0036,
501 			 0x11AD, /* LITEON */
502 			 0x06A2),
503 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
504 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
505 			 0x0036,
506 			 0x11AD, /* LITEON */
507 			 0x0682),
508 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
509 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
510 			 0x0036,
511 			 PCI_VENDOR_ID_AZWAVE,
512 			 0x213A),
513 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
514 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
515 			 0x0036,
516 			 PCI_VENDOR_ID_HP,
517 			 0x18E3),
518 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
519 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
520 			 0x0036,
521 			 PCI_VENDOR_ID_HP,
522 			 0x217F),
523 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
524 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
525 			 0x0036,
526 			 PCI_VENDOR_ID_HP,
527 			 0x2005),
528 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
529 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
530 			 0x0036,
531 			 PCI_VENDOR_ID_DELL,
532 			 0x020C),
533 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
534 
535 	/* WB335 2-ANT / Antenna-Diversity */
536 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
537 			 0x0036,
538 			 PCI_VENDOR_ID_SAMSUNG,
539 			 0x411A),
540 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
541 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
542 			 0x0036,
543 			 PCI_VENDOR_ID_SAMSUNG,
544 			 0x411B),
545 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
546 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
547 			 0x0036,
548 			 PCI_VENDOR_ID_SAMSUNG,
549 			 0x411C),
550 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
551 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
552 			 0x0036,
553 			 PCI_VENDOR_ID_SAMSUNG,
554 			 0x411D),
555 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
556 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
557 			 0x0036,
558 			 PCI_VENDOR_ID_SAMSUNG,
559 			 0x411E),
560 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
561 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
562 			 0x0036,
563 			 PCI_VENDOR_ID_ATHEROS,
564 			 0x3027),
565 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
566 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
567 			 0x0036,
568 			 PCI_VENDOR_ID_ATHEROS,
569 			 0x302C),
570 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
571 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
572 			 0x0036,
573 			 0x11AD, /* LITEON */
574 			 0x0642),
575 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
576 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
577 			 0x0036,
578 			 0x11AD, /* LITEON */
579 			 0x0652),
580 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
581 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
582 			 0x0036,
583 			 0x11AD, /* LITEON */
584 			 0x0612),
585 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
586 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
587 			 0x0036,
588 			 0x11AD, /* LITEON */
589 			 0x0832),
590 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
591 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
592 			 0x0036,
593 			 0x11AD, /* LITEON */
594 			 0x0692),
595 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
596 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
597 			 0x0036,
598 			 PCI_VENDOR_ID_AZWAVE,
599 			 0x2130),
600 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
601 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
602 			 0x0036,
603 			 PCI_VENDOR_ID_AZWAVE,
604 			 0x213B),
605 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
606 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
607 			 0x0036,
608 			 PCI_VENDOR_ID_AZWAVE,
609 			 0x2182),
610 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
611 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
612 			 0x0036,
613 			 0x144F, /* ASKEY */
614 			 0x7202),
615 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
616 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
617 			 0x0036,
618 			 0x1B9A, /* XAVI */
619 			 0x2810),
620 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
621 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
622 			 0x0036,
623 			 0x1B9A, /* XAVI */
624 			 0x28A2),
625 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
626 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
627 			 0x0036,
628 			 0x185F, /* WNC */
629 			 0x3027),
630 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
631 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
632 			 0x0036,
633 			 0x185F, /* WNC */
634 			 0xA120),
635 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
636 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
637 			 0x0036,
638 			 PCI_VENDOR_ID_FOXCONN,
639 			 0xE07F),
640 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
641 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
642 			 0x0036,
643 			 PCI_VENDOR_ID_FOXCONN,
644 			 0xE081),
645 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
646 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
647 			 0x0036,
648 			 PCI_VENDOR_ID_LENOVO,
649 			 0x3026),
650 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
651 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
652 			 0x0036,
653 			 PCI_VENDOR_ID_LENOVO,
654 			 0x4026),
655 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
656 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
657 			 0x0036,
658 			 PCI_VENDOR_ID_ASUSTEK,
659 			 0x85F2),
660 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
661 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
662 			 0x0036,
663 			 PCI_VENDOR_ID_DELL,
664 			 0x020E),
665 	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
666 
667 	/* PCI-E AR9565 (WB335) */
668 	{ PCI_VDEVICE(ATHEROS, 0x0036),
669 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
670 
671 	{ 0 }
672 };
673 
674 
675 /* return bus cachesize in 4B word units */
ath_pci_read_cachesize(struct ath_common * common,int * csz)676 static void ath_pci_read_cachesize(struct ath_common *common, int *csz)
677 {
678 	struct ath_softc *sc = (struct ath_softc *) common->priv;
679 	u8 u8tmp;
680 
681 	pci_read_config_byte(to_pci_dev(sc->dev), PCI_CACHE_LINE_SIZE, &u8tmp);
682 	*csz = (int)u8tmp;
683 
684 	/*
685 	 * This check was put in to avoid "unpleasant" consequences if
686 	 * the bootrom has not fully initialized all PCI devices.
687 	 * Sometimes the cache line size register is not set
688 	 */
689 
690 	if (*csz == 0)
691 		*csz = DEFAULT_CACHELINE >> 2;   /* Use the default size */
692 }
693 
ath_pci_eeprom_read(struct ath_common * common,u32 off,u16 * data)694 static bool ath_pci_eeprom_read(struct ath_common *common, u32 off, u16 *data)
695 {
696 	struct ath_softc *sc = (struct ath_softc *) common->priv;
697 	struct ath9k_platform_data *pdata = sc->dev->platform_data;
698 
699 	if (pdata && !pdata->use_eeprom) {
700 		if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
701 			ath_err(common,
702 				"%s: eeprom read failed, offset %08x is out of range\n",
703 				__func__, off);
704 		}
705 
706 		*data = pdata->eeprom_data[off];
707 	} else {
708 		struct ath_hw *ah = (struct ath_hw *) common->ah;
709 
710 		common->ops->read(ah, AR5416_EEPROM_OFFSET +
711 				      (off << AR5416_EEPROM_S));
712 
713 		if (!ath9k_hw_wait(ah,
714 				   AR_EEPROM_STATUS_DATA,
715 				   AR_EEPROM_STATUS_DATA_BUSY |
716 				   AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
717 				   AH_WAIT_TIMEOUT)) {
718 			return false;
719 		}
720 
721 		*data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
722 			   AR_EEPROM_STATUS_DATA_VAL);
723 	}
724 
725 	return true;
726 }
727 
728 /* Need to be called after we discover btcoex capabilities */
ath_pci_aspm_init(struct ath_common * common)729 static void ath_pci_aspm_init(struct ath_common *common)
730 {
731 	struct ath_softc *sc = (struct ath_softc *) common->priv;
732 	struct ath_hw *ah = sc->sc_ah;
733 	struct pci_dev *pdev = to_pci_dev(sc->dev);
734 	struct pci_dev *parent;
735 	u16 aspm;
736 
737 	if (!ah->is_pciexpress)
738 		return;
739 
740 	parent = pdev->bus->self;
741 	if (!parent)
742 		return;
743 
744 	if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
745 	    (AR_SREV_9285(ah))) {
746 		/* Bluetooth coexistence requires disabling ASPM. */
747 		pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL,
748 			PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
749 
750 		/*
751 		 * Both upstream and downstream PCIe components should
752 		 * have the same ASPM settings.
753 		 */
754 		pcie_capability_clear_word(parent, PCI_EXP_LNKCTL,
755 			PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
756 
757 		ath_info(common, "Disabling ASPM since BTCOEX is enabled\n");
758 		return;
759 	}
760 
761 	/*
762 	 * 0x70c - Ack Frequency Register.
763 	 *
764 	 * Bits 27:29 - DEFAULT_L1_ENTRANCE_LATENCY.
765 	 *
766 	 * 000 : 1 us
767 	 * 001 : 2 us
768 	 * 010 : 4 us
769 	 * 011 : 8 us
770 	 * 100 : 16 us
771 	 * 101 : 32 us
772 	 * 110/111 : 64 us
773 	 */
774 	if (AR_SREV_9462(ah))
775 		pci_read_config_dword(pdev, 0x70c, &ah->config.aspm_l1_fix);
776 
777 	pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &aspm);
778 	if (aspm & (PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1)) {
779 		ah->aspm_enabled = true;
780 		/* Initialize PCIe PM and SERDES registers. */
781 		ath9k_hw_configpcipowersave(ah, false);
782 		ath_info(common, "ASPM enabled: 0x%x\n", aspm);
783 	}
784 }
785 
786 static const struct ath_bus_ops ath_pci_bus_ops = {
787 	.ath_bus_type = ATH_PCI,
788 	.read_cachesize = ath_pci_read_cachesize,
789 	.eeprom_read = ath_pci_eeprom_read,
790 	.aspm_init = ath_pci_aspm_init,
791 };
792 
ath_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)793 static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
794 {
795 	struct ath_softc *sc;
796 	struct ieee80211_hw *hw;
797 	u8 csz;
798 	u32 val;
799 	int ret = 0;
800 	char hw_name[64];
801 
802 	if (pcim_enable_device(pdev))
803 		return -EIO;
804 
805 	ret =  pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
806 	if (ret) {
807 		pr_err("32-bit DMA not available\n");
808 		return ret;
809 	}
810 
811 	ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
812 	if (ret) {
813 		pr_err("32-bit DMA consistent DMA enable failed\n");
814 		return ret;
815 	}
816 
817 	/*
818 	 * Cache line size is used to size and align various
819 	 * structures used to communicate with the hardware.
820 	 */
821 	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz);
822 	if (csz == 0) {
823 		/*
824 		 * Linux 2.4.18 (at least) writes the cache line size
825 		 * register as a 16-bit wide register which is wrong.
826 		 * We must have this setup properly for rx buffer
827 		 * DMA to work so force a reasonable value here if it
828 		 * comes up zero.
829 		 */
830 		csz = L1_CACHE_BYTES / sizeof(u32);
831 		pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz);
832 	}
833 	/*
834 	 * The default setting of latency timer yields poor results,
835 	 * set it to the value used by other systems. It may be worth
836 	 * tweaking this setting more.
837 	 */
838 	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8);
839 
840 	pci_set_master(pdev);
841 
842 	/*
843 	 * Disable the RETRY_TIMEOUT register (0x41) to keep
844 	 * PCI Tx retries from interfering with C3 CPU state.
845 	 */
846 	pci_read_config_dword(pdev, 0x40, &val);
847 	if ((val & 0x0000ff00) != 0)
848 		pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
849 
850 	ret = pcim_iomap_regions(pdev, BIT(0), "ath9k");
851 	if (ret) {
852 		dev_err(&pdev->dev, "PCI memory region reserve error\n");
853 		return -ENODEV;
854 	}
855 
856 	ath9k_fill_chanctx_ops();
857 	hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops);
858 	if (!hw) {
859 		dev_err(&pdev->dev, "No memory for ieee80211_hw\n");
860 		return -ENOMEM;
861 	}
862 
863 	SET_IEEE80211_DEV(hw, &pdev->dev);
864 	pci_set_drvdata(pdev, hw);
865 
866 	sc = hw->priv;
867 	sc->hw = hw;
868 	sc->dev = &pdev->dev;
869 	sc->mem = pcim_iomap_table(pdev)[0];
870 	sc->driver_data = id->driver_data;
871 
872 	ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc);
873 	if (ret) {
874 		dev_err(&pdev->dev, "request_irq failed\n");
875 		goto err_irq;
876 	}
877 
878 	sc->irq = pdev->irq;
879 
880 	ret = ath9k_init_device(id->device, sc, &ath_pci_bus_ops);
881 	if (ret) {
882 		dev_err(&pdev->dev, "Failed to initialize device\n");
883 		goto err_init;
884 	}
885 
886 	ath9k_hw_name(sc->sc_ah, hw_name, sizeof(hw_name));
887 	wiphy_info(hw->wiphy, "%s mem=0x%lx, irq=%d\n",
888 		   hw_name, (unsigned long)sc->mem, pdev->irq);
889 
890 	return 0;
891 
892 err_init:
893 	free_irq(sc->irq, sc);
894 err_irq:
895 	ieee80211_free_hw(hw);
896 	return ret;
897 }
898 
ath_pci_remove(struct pci_dev * pdev)899 static void ath_pci_remove(struct pci_dev *pdev)
900 {
901 	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
902 	struct ath_softc *sc = hw->priv;
903 
904 	if (!is_ath9k_unloaded)
905 		sc->sc_ah->ah_flags |= AH_UNPLUGGED;
906 	ath9k_deinit_device(sc);
907 	free_irq(sc->irq, sc);
908 	ieee80211_free_hw(sc->hw);
909 }
910 
911 #ifdef CONFIG_PM_SLEEP
912 
ath_pci_suspend(struct device * device)913 static int ath_pci_suspend(struct device *device)
914 {
915 	struct pci_dev *pdev = to_pci_dev(device);
916 	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
917 	struct ath_softc *sc = hw->priv;
918 
919 	if (sc->wow_enabled)
920 		return 0;
921 
922 	/* The device has to be moved to FULLSLEEP forcibly.
923 	 * Otherwise the chip never moved to full sleep,
924 	 * when no interface is up.
925 	 */
926 	ath9k_stop_btcoex(sc);
927 	ath9k_hw_disable(sc->sc_ah);
928 	del_timer_sync(&sc->sleep_timer);
929 	ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
930 
931 	return 0;
932 }
933 
ath_pci_resume(struct device * device)934 static int ath_pci_resume(struct device *device)
935 {
936 	struct pci_dev *pdev = to_pci_dev(device);
937 	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
938 	struct ath_softc *sc = hw->priv;
939 	struct ath_hw *ah = sc->sc_ah;
940 	struct ath_common *common = ath9k_hw_common(ah);
941 	u32 val;
942 
943 	/*
944 	 * Suspend/Resume resets the PCI configuration space, so we have to
945 	 * re-disable the RETRY_TIMEOUT register (0x41) to keep
946 	 * PCI Tx retries from interfering with C3 CPU state
947 	 */
948 	pci_read_config_dword(pdev, 0x40, &val);
949 	if ((val & 0x0000ff00) != 0)
950 		pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
951 
952 	ath_pci_aspm_init(common);
953 	ah->reset_power_on = false;
954 
955 	return 0;
956 }
957 
958 static SIMPLE_DEV_PM_OPS(ath9k_pm_ops, ath_pci_suspend, ath_pci_resume);
959 
960 #define ATH9K_PM_OPS	(&ath9k_pm_ops)
961 
962 #else /* !CONFIG_PM_SLEEP */
963 
964 #define ATH9K_PM_OPS	NULL
965 
966 #endif /* !CONFIG_PM_SLEEP */
967 
968 
969 MODULE_DEVICE_TABLE(pci, ath_pci_id_table);
970 
971 static struct pci_driver ath_pci_driver = {
972 	.name       = "ath9k",
973 	.id_table   = ath_pci_id_table,
974 	.probe      = ath_pci_probe,
975 	.remove     = ath_pci_remove,
976 	.driver.pm  = ATH9K_PM_OPS,
977 };
978 
ath_pci_init(void)979 int ath_pci_init(void)
980 {
981 	return pci_register_driver(&ath_pci_driver);
982 }
983 
ath_pci_exit(void)984 void ath_pci_exit(void)
985 {
986 	pci_unregister_driver(&ath_pci_driver);
987 }
988