drivers/net/wireless/ath/ath9k/pci.c

   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/module.h>
  23 #include "ath9k.h"
  24
  25 static const struct pci_device_id ath_pci_id_table[] = {
  26         { PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI   */
  27         { PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
  28         { PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI   */
  29         { PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
  30
  31 #ifdef CONFIG_ATH9K_PCOEM
  32         /* Mini PCI AR9220 MB92 cards: Compex WLM200NX, Wistron DNMA-92 */
  33         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  34                          0x0029,
  35                          PCI_VENDOR_ID_ATHEROS,
  36                          0x2096),
  37           .driver_data = ATH9K_PCI_LED_ACT_HI },
  38 #endif
  39
  40         { PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
  41
  42 #ifdef CONFIG_ATH9K_PCOEM
  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 #endif
  96
  97         { PCI_VDEVICE(ATHEROS, 0x002B) }, /* PCI-E */
  98         { PCI_VDEVICE(ATHEROS, 0x002C) }, /* PCI-E 802.11n bonded out */
  99         { PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI   */
 100         { PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */
 101
 102         /* Killer Wireless (3x3) */
 103         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 104                          0x0030,
 105                          0x1A56,
 106                          0x2000),
 107           .driver_data = ATH9K_PCI_KILLER },
 108         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 109                          0x0030,
 110                          0x1A56,
 111                          0x2001),
 112           .driver_data = ATH9K_PCI_KILLER },
 113
 114         { PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E  AR9300 */
 115
 116 #ifdef CONFIG_ATH9K_PCOEM
 117         /* PCI-E CUS198 */
 118         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 119                          0x0032,
 120                          PCI_VENDOR_ID_AZWAVE,
 121                          0x2086),
 122           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 123         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 124                          0x0032,
 125                          PCI_VENDOR_ID_AZWAVE,
 126                          0x1237),
 127           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 128         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 129                          0x0032,
 130                          PCI_VENDOR_ID_AZWAVE,
 131                          0x2126),
 132           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 133         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 134                          0x0032,
 135                          PCI_VENDOR_ID_AZWAVE,
 136                          0x126A),
 137           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 138
 139         /* PCI-E CUS230 */
 140         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 141                          0x0032,
 142                          PCI_VENDOR_ID_AZWAVE,
 143                          0x2152),
 144           .driver_data = ATH9K_PCI_CUS230 | ATH9K_PCI_BT_ANT_DIV },
 145         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 146                          0x0032,
 147                          PCI_VENDOR_ID_FOXCONN,
 148                          0xE075),
 149           .driver_data = ATH9K_PCI_CUS230 | ATH9K_PCI_BT_ANT_DIV },
 150
 151         /* WB225 */
 152         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 153                          0x0032,
 154                          PCI_VENDOR_ID_ATHEROS,
 155                          0x3119),
 156           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 157         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 158                          0x0032,
 159                          PCI_VENDOR_ID_ATHEROS,
 160                          0x3122),
 161           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 162         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 163                          0x0032,
 164                          0x185F, /* WNC */
 165                          0x3119),
 166           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 167         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 168                          0x0032,
 169                          0x185F, /* WNC */
 170                          0x3027),
 171           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 172         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 173                          0x0032,
 174                          PCI_VENDOR_ID_SAMSUNG,
 175                          0x4105),
 176           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 177         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 178                          0x0032,
 179                          PCI_VENDOR_ID_SAMSUNG,
 180                          0x4106),
 181           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 182         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 183                          0x0032,
 184                          PCI_VENDOR_ID_SAMSUNG,
 185                          0x410D),
 186           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 187         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 188                          0x0032,
 189                          PCI_VENDOR_ID_SAMSUNG,
 190                          0x410E),
 191           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 192         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 193                          0x0032,
 194                          PCI_VENDOR_ID_SAMSUNG,
 195                          0x410F),
 196           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 197         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 198                          0x0032,
 199                          PCI_VENDOR_ID_SAMSUNG,
 200                          0xC706),
 201           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 202         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 203                          0x0032,
 204                          PCI_VENDOR_ID_SAMSUNG,
 205                          0xC680),
 206           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 207         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 208                          0x0032,
 209                          PCI_VENDOR_ID_SAMSUNG,
 210                          0xC708),
 211           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 212         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 213                          0x0032,
 214                          PCI_VENDOR_ID_LENOVO,
 215                          0x3218),
 216           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 217         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 218                          0x0032,
 219                          PCI_VENDOR_ID_LENOVO,
 220                          0x3219),
 221           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 222
 223         /* AR9485 cards with PLL power-save disabled by default. */
 224         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 225                          0x0032,
 226                          PCI_VENDOR_ID_AZWAVE,
 227                          0x2C97),
 228           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 229         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 230                          0x0032,
 231                          PCI_VENDOR_ID_AZWAVE,
 232                          0x2100),
 233           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 234         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 235                          0x0032,
 236                          0x1C56, /* ASKEY */
 237                          0x4001),
 238           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 239         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 240                          0x0032,
 241                          0x11AD, /* LITEON */
 242                          0x6627),
 243           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 244         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 245                          0x0032,
 246                          0x11AD, /* LITEON */
 247                          0x6628),
 248           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 249         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 250                          0x0032,
 251                          PCI_VENDOR_ID_FOXCONN,
 252                          0xE04E),
 253           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 254         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 255                          0x0032,
 256                          PCI_VENDOR_ID_FOXCONN,
 257                          0xE04F),
 258           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 259         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 260                          0x0032,
 261                          0x144F, /* ASKEY */
 262                          0x7197),
 263           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 264         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 265                          0x0032,
 266                          0x1B9A, /* XAVI */
 267                          0x2000),
 268           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 269         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 270                          0x0032,
 271                          0x1B9A, /* XAVI */
 272                          0x2001),
 273           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 274         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 275                          0x0032,
 276                          PCI_VENDOR_ID_AZWAVE,
 277                          0x1186),
 278           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 279         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 280                          0x0032,
 281                          PCI_VENDOR_ID_AZWAVE,
 282                          0x1F86),
 283           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 284         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 285                          0x0032,
 286                          PCI_VENDOR_ID_AZWAVE,
 287                          0x1195),
 288           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 289         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 290                          0x0032,
 291                          PCI_VENDOR_ID_AZWAVE,
 292                          0x1F95),
 293           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 294         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 295                          0x0032,
 296                          0x1B9A, /* XAVI */
 297                          0x1C00),
 298           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 299         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 300                          0x0032,
 301                          0x1B9A, /* XAVI */
 302                          0x1C01),
 303           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 304         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 305                          0x0032,
 306                          PCI_VENDOR_ID_ASUSTEK,
 307                          0x850D),
 308           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 309 #endif
 310
 311         { PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
 312         { PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
 313
 314 #ifdef CONFIG_ATH9K_PCOEM
 315         /* PCI-E CUS217 */
 316         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 317                          0x0034,
 318                          PCI_VENDOR_ID_AZWAVE,
 319                          0x2116),
 320           .driver_data = ATH9K_PCI_CUS217 },
 321         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 322                          0x0034,
 323                          0x11AD, /* LITEON */
 324                          0x6661),
 325           .driver_data = ATH9K_PCI_CUS217 },
 326
 327         /* AR9462 with WoW support */
 328         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 329                          0x0034,
 330                          PCI_VENDOR_ID_ATHEROS,
 331                          0x3117),
 332           .driver_data = ATH9K_PCI_WOW },
 333         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 334                          0x0034,
 335                          PCI_VENDOR_ID_LENOVO,
 336                          0x3214),
 337           .driver_data = ATH9K_PCI_WOW },
 338         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 339                          0x0034,
 340                          PCI_VENDOR_ID_ATTANSIC,
 341                          0x0091),
 342           .driver_data = ATH9K_PCI_WOW },
 343         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 344                          0x0034,
 345                          PCI_VENDOR_ID_AZWAVE,
 346                          0x2110),
 347           .driver_data = ATH9K_PCI_WOW },
 348         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 349                          0x0034,
 350                          PCI_VENDOR_ID_ASUSTEK,
 351                          0x850E),
 352           .driver_data = ATH9K_PCI_WOW },
 353         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 354                          0x0034,
 355                          0x11AD, /* LITEON */
 356                          0x6631),
 357           .driver_data = ATH9K_PCI_WOW },
 358         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 359                          0x0034,
 360                          0x11AD, /* LITEON */
 361                          0x6641),
 362           .driver_data = ATH9K_PCI_WOW },
 363         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 364                          0x0034,
 365                          PCI_VENDOR_ID_HP,
 366                          0x1864),
 367           .driver_data = ATH9K_PCI_WOW },
 368         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 369                          0x0034,
 370                          0x14CD, /* USI */
 371                          0x0063),
 372           .driver_data = ATH9K_PCI_WOW },
 373         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 374                          0x0034,
 375                          0x14CD, /* USI */
 376                          0x0064),
 377           .driver_data = ATH9K_PCI_WOW },
 378         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 379                          0x0034,
 380                          0x10CF, /* Fujitsu */
 381                          0x1783),
 382           .driver_data = ATH9K_PCI_WOW },
 383
 384         /* Killer Wireless (2x2) */
 385         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 386                          0x0030,
 387                          0x1A56,
 388                          0x2003),
 389           .driver_data = ATH9K_PCI_KILLER },
 390
 391         { PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
 392         { PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
 393
 394         /* CUS252 */
 395         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 396                          0x0036,
 397                          PCI_VENDOR_ID_ATHEROS,
 398                          0x3028),
 399           .driver_data = ATH9K_PCI_CUS252 |
 400                          ATH9K_PCI_AR9565_2ANT |
 401                          ATH9K_PCI_BT_ANT_DIV },
 402         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 403                          0x0036,
 404                          PCI_VENDOR_ID_AZWAVE,
 405                          0x2176),
 406           .driver_data = ATH9K_PCI_CUS252 |
 407                          ATH9K_PCI_AR9565_2ANT |
 408                          ATH9K_PCI_BT_ANT_DIV },
 409
 410         /* WB335 1-ANT */
 411         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 412                          0x0036,
 413                          PCI_VENDOR_ID_FOXCONN,
 414                          0xE068),
 415           .driver_data = ATH9K_PCI_AR9565_1ANT },
 416         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 417                          0x0036,
 418                          0x185F, /* WNC */
 419                          0xA119),
 420           .driver_data = ATH9K_PCI_AR9565_1ANT },
 421         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 422                          0x0036,
 423                          0x11AD, /* LITEON */
 424                          0x0632),
 425           .driver_data = ATH9K_PCI_AR9565_1ANT },
 426         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 427                          0x0036,
 428                          0x11AD, /* LITEON */
 429                          0x06B2),
 430           .driver_data = ATH9K_PCI_AR9565_1ANT },
 431         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 432                          0x0036,
 433                          0x11AD, /* LITEON */
 434                          0x0842),
 435           .driver_data = ATH9K_PCI_AR9565_1ANT },
 436         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 437                          0x0036,
 438                          0x11AD, /* LITEON */
 439                          0x1842),
 440           .driver_data = ATH9K_PCI_AR9565_1ANT },
 441         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 442                          0x0036,
 443                          0x11AD, /* LITEON */
 444                          0x6671),
 445           .driver_data = ATH9K_PCI_AR9565_1ANT },
 446         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 447                          0x0036,
 448                          0x1B9A, /* XAVI */
 449                          0x2811),
 450           .driver_data = ATH9K_PCI_AR9565_1ANT },
 451         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 452                          0x0036,
 453                          0x1B9A, /* XAVI */
 454                          0x2812),
 455           .driver_data = ATH9K_PCI_AR9565_1ANT },
 456         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 457                          0x0036,
 458                          0x1B9A, /* XAVI */
 459                          0x28A1),
 460           .driver_data = ATH9K_PCI_AR9565_1ANT },
 461         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 462                          0x0036,
 463                          0x1B9A, /* XAVI */
 464                          0x28A3),
 465           .driver_data = ATH9K_PCI_AR9565_1ANT },
 466         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 467                          0x0036,
 468                          PCI_VENDOR_ID_AZWAVE,
 469                          0x218A),
 470           .driver_data = ATH9K_PCI_AR9565_1ANT },
 471         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 472                          0x0036,
 473                          PCI_VENDOR_ID_AZWAVE,
 474                          0x2F8A),
 475           .driver_data = ATH9K_PCI_AR9565_1ANT },
 476
 477         /* WB335 1-ANT / Antenna Diversity */
 478         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 479                          0x0036,
 480                          PCI_VENDOR_ID_ATHEROS,
 481                          0x3025),
 482           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 483         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 484                          0x0036,
 485                          PCI_VENDOR_ID_ATHEROS,
 486                          0x3026),
 487           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 488         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 489                          0x0036,
 490                          PCI_VENDOR_ID_ATHEROS,
 491                          0x302B),
 492           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 493         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 494                          0x0036,
 495                          PCI_VENDOR_ID_FOXCONN,
 496                          0xE069),
 497           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 498         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 499                          0x0036,
 500                          0x185F, /* WNC */
 501                          0x3028),
 502           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 503         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 504                          0x0036,
 505                          0x11AD, /* LITEON */
 506                          0x0622),
 507           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 508         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 509                          0x0036,
 510                          0x11AD, /* LITEON */
 511                          0x0672),
 512           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 513         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 514                          0x0036,
 515                          0x11AD, /* LITEON */
 516                          0x0662),
 517           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 518         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 519                          0x0036,
 520                          0x11AD, /* LITEON */
 521                          0x06A2),
 522           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 523         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 524                          0x0036,
 525                          0x11AD, /* LITEON */
 526                          0x0682),
 527           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 528         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 529                          0x0036,
 530                          PCI_VENDOR_ID_AZWAVE,
 531                          0x213A),
 532           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 533         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 534                          0x0036,
 535                          PCI_VENDOR_ID_AZWAVE,
 536                          0x213C),
 537           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 538         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 539                          0x0036,
 540                          PCI_VENDOR_ID_HP,
 541                          0x18E3),
 542           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 543         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 544                          0x0036,
 545                          PCI_VENDOR_ID_HP,
 546                          0x217F),
 547           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 548         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 549                          0x0036,
 550                          PCI_VENDOR_ID_HP,
 551                          0x2005),
 552           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 553         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 554                          0x0036,
 555                          PCI_VENDOR_ID_DELL,
 556                          0x020C),
 557           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 558
 559         /* WB335 2-ANT / Antenna-Diversity */
 560         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 561                          0x0036,
 562                          PCI_VENDOR_ID_SAMSUNG,
 563                          0x411A),
 564           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 565         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 566                          0x0036,
 567                          PCI_VENDOR_ID_SAMSUNG,
 568                          0x411B),
 569           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 570         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 571                          0x0036,
 572                          PCI_VENDOR_ID_SAMSUNG,
 573                          0x411C),
 574           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 575         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 576                          0x0036,
 577                          PCI_VENDOR_ID_SAMSUNG,
 578                          0x411D),
 579           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 580         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 581                          0x0036,
 582                          PCI_VENDOR_ID_SAMSUNG,
 583                          0x411E),
 584           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 585         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 586                          0x0036,
 587                          PCI_VENDOR_ID_SAMSUNG,
 588                          0x4129),
 589           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 590         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 591                          0x0036,
 592                          PCI_VENDOR_ID_SAMSUNG,
 593                          0x412A),
 594           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 595         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 596                          0x0036,
 597                          PCI_VENDOR_ID_ATHEROS,
 598                          0x3027),
 599           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 600         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 601                          0x0036,
 602                          PCI_VENDOR_ID_ATHEROS,
 603                          0x302C),
 604           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 605         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 606                          0x0036,
 607                          0x11AD, /* LITEON */
 608                          0x0642),
 609           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 610         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 611                          0x0036,
 612                          0x11AD, /* LITEON */
 613                          0x0652),
 614           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 615         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 616                          0x0036,
 617                          0x11AD, /* LITEON */
 618                          0x0612),
 619           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 620         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 621                          0x0036,
 622                          0x11AD, /* LITEON */
 623                          0x0832),
 624           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 625         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 626                          0x0036,
 627                          0x11AD, /* LITEON */
 628                          0x1832),
 629           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 630         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 631                          0x0036,
 632                          0x11AD, /* LITEON */
 633                          0x0692),
 634           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 635         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 636                          0x0036,
 637                          0x11AD, /* LITEON */
 638                          0x0803),
 639           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 640         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 641                          0x0036,
 642                          0x11AD, /* LITEON */
 643                          0x0813),
 644           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 645         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 646                          0x0036,
 647                          PCI_VENDOR_ID_AZWAVE,
 648                          0x2130),
 649           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 650         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 651                          0x0036,
 652                          PCI_VENDOR_ID_AZWAVE,
 653                          0x213B),
 654           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 655         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 656                          0x0036,
 657                          PCI_VENDOR_ID_AZWAVE,
 658                          0x2182),
 659           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 660         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 661                          0x0036,
 662                          PCI_VENDOR_ID_AZWAVE,
 663                          0x218B),
 664           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 665         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 666                          0x0036,
 667                          PCI_VENDOR_ID_AZWAVE,
 668                          0x218C),
 669           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 670         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 671                          0x0036,
 672                          PCI_VENDOR_ID_AZWAVE,
 673                          0x2F82),
 674           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 675         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 676                          0x0036,
 677                          0x144F, /* ASKEY */
 678                          0x7202),
 679           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 680         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 681                          0x0036,
 682                          0x1B9A, /* XAVI */
 683                          0x2810),
 684           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 685         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 686                          0x0036,
 687                          0x1B9A, /* XAVI */
 688                          0x2813),
 689           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 690         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 691                          0x0036,
 692                          0x1B9A, /* XAVI */
 693                          0x28A2),
 694           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 695         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 696                          0x0036,
 697                          0x1B9A, /* XAVI */
 698                          0x28A4),
 699           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 700         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 701                          0x0036,
 702                          0x185F, /* WNC */
 703                          0x3027),
 704           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 705         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 706                          0x0036,
 707                          0x185F, /* WNC */
 708                          0xA120),
 709           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 710         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 711                          0x0036,
 712                          PCI_VENDOR_ID_FOXCONN,
 713                          0xE07F),
 714           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 715         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 716                          0x0036,
 717                          PCI_VENDOR_ID_FOXCONN,
 718                          0xE08F),
 719           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 720         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 721                          0x0036,
 722                          PCI_VENDOR_ID_FOXCONN,
 723                          0xE081),
 724           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 725         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 726                          0x0036,
 727                          PCI_VENDOR_ID_FOXCONN,
 728                          0xE091),
 729           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 730         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 731                          0x0036,
 732                          PCI_VENDOR_ID_FOXCONN,
 733                          0xE099),
 734           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 735         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 736                          0x0036,
 737                          PCI_VENDOR_ID_LENOVO,
 738                          0x3026),
 739           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 740         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 741                          0x0036,
 742                          PCI_VENDOR_ID_LENOVO,
 743                          0x4026),
 744           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 745         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 746                          0x0036,
 747                          PCI_VENDOR_ID_ASUSTEK,
 748                          0x85F2),
 749           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 750         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 751                          0x0036,
 752                          PCI_VENDOR_ID_DELL,
 753                          0x020E),
 754           .driver_data = ATH9K_PCI_AR9565_2ANT |
 755                          ATH9K_PCI_BT_ANT_DIV |
 756                          ATH9K_PCI_LED_ACT_HI},
 757
 758         /* PCI-E AR9565 (WB335) */
 759         { PCI_VDEVICE(ATHEROS, 0x0036),
 760           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 761 #endif
 762
 763         { 0 }
 764 };
 765
 766
 767 /* return bus cachesize in 4B word units */
 768 static void ath_pci_read_cachesize(struct ath_common *common, int *csz)
 769 {
 770         struct ath_softc *sc = (struct ath_softc *) common->priv;
 771         u8 u8tmp;
 772
 773         pci_read_config_byte(to_pci_dev(sc->dev), PCI_CACHE_LINE_SIZE, &u8tmp);
 774         *csz = (int)u8tmp;
 775
 776         /*
 777          * This check was put in to avoid "unpleasant" consequences if
 778          * the bootrom has not fully initialized all PCI devices.
 779          * Sometimes the cache line size register is not set
 780          */
 781
 782         if (*csz == 0)
 783                 *csz = DEFAULT_CACHELINE >> 2;   /* Use the default size */
 784 }
 785
 786 static bool ath_pci_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 787 {
 788         struct ath_hw *ah = (struct ath_hw *) common->ah;
 789
 790         common->ops->read(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 791
 792         if (!ath9k_hw_wait(ah,
 793                                 AR_EEPROM_STATUS_DATA,
 794                                 AR_EEPROM_STATUS_DATA_BUSY |
 795                                 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 796                                 AH_WAIT_TIMEOUT)) {
 797                 return false;
 798         }
 799
 800         *data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
 801                         AR_EEPROM_STATUS_DATA_VAL);
 802
 803         return true;
 804 }
 805
 806 /* Need to be called after we discover btcoex capabilities */
 807 static void ath_pci_aspm_init(struct ath_common *common)
 808 {
 809         struct ath_softc *sc = (struct ath_softc *) common->priv;
 810         struct ath_hw *ah = sc->sc_ah;
 811         struct pci_dev *pdev = to_pci_dev(sc->dev);
 812         struct pci_dev *parent;
 813         u16 aspm;
 814
 815         if (!ah->is_pciexpress)
 816                 return;
 817
 818         parent = pdev->bus->self;
 819         if (!parent)
 820                 return;
 821
 822         if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
 823             (AR_SREV_9285(ah))) {
 824                 /* Bluetooth coexistence requires disabling ASPM. */
 825                 pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL,
 826                         PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
 827
 828                 /*
 829                  * Both upstream and downstream PCIe components should
 830                  * have the same ASPM settings.
 831                  */
 832                 pcie_capability_clear_word(parent, PCI_EXP_LNKCTL,
 833                         PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
 834
 835                 ath_info(common, "Disabling ASPM since BTCOEX is enabled\n");
 836                 return;
 837         }
 838
 839         /*
 840          * 0x70c - Ack Frequency Register.
 841          *
 842          * Bits 27:29 - DEFAULT_L1_ENTRANCE_LATENCY.
 843          *
 844          * 000 : 1 us
 845          * 001 : 2 us
 846          * 010 : 4 us
 847          * 011 : 8 us
 848          * 100 : 16 us
 849          * 101 : 32 us
 850          * 110/111 : 64 us
 851          */
 852         if (AR_SREV_9462(ah))
 853                 pci_read_config_dword(pdev, 0x70c, &ah->config.aspm_l1_fix);
 854
 855         pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &aspm);
 856         if (aspm & (PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1)) {
 857                 ah->aspm_enabled = true;
 858                 /* Initialize PCIe PM and SERDES registers. */
 859                 ath9k_hw_configpcipowersave(ah, false);
 860                 ath_info(common, "ASPM enabled: 0x%x\n", aspm);
 861         }
 862 }
 863
 864 static const struct ath_bus_ops ath_pci_bus_ops = {
 865         .ath_bus_type = ATH_PCI,
 866         .read_cachesize = ath_pci_read_cachesize,
 867         .eeprom_read = ath_pci_eeprom_read,
 868         .aspm_init = ath_pci_aspm_init,
 869 };
 870
 871 static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 872 {
 873         struct ath_softc *sc;
 874         struct ieee80211_hw *hw;
 875         u8 csz;
 876         u32 val;
 877         int ret = 0;
 878         char hw_name[64];
 879
 880         if (pcim_enable_device(pdev))
 881                 return -EIO;
 882
 883         ret =  pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 884         if (ret) {
 885                 pr_err("32-bit DMA not available\n");
 886                 return ret;
 887         }
 888
 889         ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 890         if (ret) {
 891                 pr_err("32-bit DMA consistent DMA enable failed\n");
 892                 return ret;
 893         }
 894
 895         /*
 896          * Cache line size is used to size and align various
 897          * structures used to communicate with the hardware.
 898          */
 899         pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz);
 900         if (csz == 0) {
 901                 /*
 902                  * Linux 2.4.18 (at least) writes the cache line size
 903                  * register as a 16-bit wide register which is wrong.
 904                  * We must have this setup properly for rx buffer
 905                  * DMA to work so force a reasonable value here if it
 906                  * comes up zero.
 907                  */
 908                 csz = L1_CACHE_BYTES / sizeof(u32);
 909                 pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz);
 910         }
 911         /*
 912          * The default setting of latency timer yields poor results,
 913          * set it to the value used by other systems. It may be worth
 914          * tweaking this setting more.
 915          */
 916         pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8);
 917
 918         pci_set_master(pdev);
 919
 920         /*
 921          * Disable the RETRY_TIMEOUT register (0x41) to keep
 922          * PCI Tx retries from interfering with C3 CPU state.
 923          */
 924         pci_read_config_dword(pdev, 0x40, &val);
 925         if ((val & 0x0000ff00) != 0)
 926                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
 927
 928         ret = pcim_iomap_regions(pdev, BIT(0), "ath9k");
 929         if (ret) {
 930                 dev_err(&pdev->dev, "PCI memory region reserve error\n");
 931                 return -ENODEV;
 932         }
 933
 934         ath9k_fill_chanctx_ops();
 935         hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops);
 936         if (!hw) {
 937                 dev_err(&pdev->dev, "No memory for ieee80211_hw\n");
 938                 return -ENOMEM;
 939         }
 940
 941         SET_IEEE80211_DEV(hw, &pdev->dev);
 942         pci_set_drvdata(pdev, hw);
 943
 944         sc = hw->priv;
 945         sc->hw = hw;
 946         sc->dev = &pdev->dev;
 947         sc->mem = pcim_iomap_table(pdev)[0];
 948         sc->driver_data = id->driver_data;
 949
 950         ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc);
 951         if (ret) {
 952                 dev_err(&pdev->dev, "request_irq failed\n");
 953                 goto err_irq;
 954         }
 955
 956         sc->irq = pdev->irq;
 957
 958         ret = ath9k_init_device(id->device, sc, &ath_pci_bus_ops);
 959         if (ret) {
 960                 dev_err(&pdev->dev, "Failed to initialize device\n");
 961                 goto err_init;
 962         }
 963
 964         ath9k_hw_name(sc->sc_ah, hw_name, sizeof(hw_name));
 965         wiphy_info(hw->wiphy, "%s mem=0x%lx, irq=%d\n",
 966                    hw_name, (unsigned long)sc->mem, pdev->irq);
 967
 968         return 0;
 969
 970 err_init:
 971         free_irq(sc->irq, sc);
 972 err_irq:
 973         ieee80211_free_hw(hw);
 974         return ret;
 975 }
 976
 977 static void ath_pci_remove(struct pci_dev *pdev)
 978 {
 979         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
 980         struct ath_softc *sc = hw->priv;
 981
 982         if (!is_ath9k_unloaded)
 983                 sc->sc_ah->ah_flags |= AH_UNPLUGGED;
 984         ath9k_deinit_device(sc);
 985         free_irq(sc->irq, sc);
 986         ieee80211_free_hw(sc->hw);
 987 }
 988
 989 #ifdef CONFIG_PM_SLEEP
 990
 991 static int ath_pci_suspend(struct device *device)
 992 {
 993         struct pci_dev *pdev = to_pci_dev(device);
 994         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
 995         struct ath_softc *sc = hw->priv;
 996         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 997
 998         if (test_bit(ATH_OP_WOW_ENABLED, &common->op_flags)) {
 999                 dev_info(&pdev->dev, "WOW is enabled, bypassing PCI suspend\n");
1000                 return 0;
1001         }
1002
1003         /* The device has to be moved to FULLSLEEP forcibly.
1004          * Otherwise the chip never moved to full sleep,
1005          * when no interface is up.
1006          */
1007         ath9k_stop_btcoex(sc);
1008         ath9k_hw_disable(sc->sc_ah);
1009         del_timer_sync(&sc->sleep_timer);
1010         ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
1011
1012         return 0;
1013 }
1014
1015 static int ath_pci_resume(struct device *device)
1016 {
1017         struct pci_dev *pdev = to_pci_dev(device);
1018         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
1019         struct ath_softc *sc = hw->priv;
1020         struct ath_hw *ah = sc->sc_ah;
1021         struct ath_common *common = ath9k_hw_common(ah);
1022         u32 val;
1023
1024         /*
1025          * Suspend/Resume resets the PCI configuration space, so we have to
1026          * re-disable the RETRY_TIMEOUT register (0x41) to keep
1027          * PCI Tx retries from interfering with C3 CPU state
1028          */
1029         pci_read_config_dword(pdev, 0x40, &val);
1030         if ((val & 0x0000ff00) != 0)
1031                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1032
1033         ath_pci_aspm_init(common);
1034         ah->reset_power_on = false;
1035
1036         return 0;
1037 }
1038
1039 static SIMPLE_DEV_PM_OPS(ath9k_pm_ops, ath_pci_suspend, ath_pci_resume);
1040
1041 #define ATH9K_PM_OPS    (&ath9k_pm_ops)
1042
1043 #else /* !CONFIG_PM_SLEEP */
1044
1045 #define ATH9K_PM_OPS    NULL
1046
1047 #endif /* !CONFIG_PM_SLEEP */
1048
1049
1050 MODULE_DEVICE_TABLE(pci, ath_pci_id_table);
1051
1052 static struct pci_driver ath_pci_driver = {
1053         .name       = "ath9k",
1054         .id_table   = ath_pci_id_table,
1055         .probe      = ath_pci_probe,
1056         .remove     = ath_pci_remove,
1057         .driver.pm  = ATH9K_PM_OPS,
1058 };
1059
1060 int ath_pci_init(void)
1061 {
1062         return pci_register_driver(&ath_pci_driver);
1063 }
1064
1065 void ath_pci_exit(void)
1066 {
1067         pci_unregister_driver(&ath_pci_driver);
1068 }