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/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         { PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
  32
  33 #ifdef CONFIG_ATH9K_PCOEM
  34         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  35                          0x002A,
  36                          PCI_VENDOR_ID_AZWAVE,
  37                          0x1C71),
  38           .driver_data = ATH9K_PCI_D3_L1_WAR },
  39         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  40                          0x002A,
  41                          PCI_VENDOR_ID_FOXCONN,
  42                          0xE01F),
  43           .driver_data = ATH9K_PCI_D3_L1_WAR },
  44         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  45                          0x002A,
  46                          0x11AD, /* LITEON */
  47                          0x6632),
  48           .driver_data = ATH9K_PCI_D3_L1_WAR },
  49         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  50                          0x002A,
  51                          0x11AD, /* LITEON */
  52                          0x6642),
  53           .driver_data = ATH9K_PCI_D3_L1_WAR },
  54         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  55                          0x002A,
  56                          PCI_VENDOR_ID_QMI,
  57                          0x0306),
  58           .driver_data = ATH9K_PCI_D3_L1_WAR },
  59         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  60                          0x002A,
  61                          0x185F, /* WNC */
  62                          0x309D),
  63           .driver_data = ATH9K_PCI_D3_L1_WAR },
  64         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  65                          0x002A,
  66                          0x10CF, /* Fujitsu */
  67                          0x147C),
  68           .driver_data = ATH9K_PCI_D3_L1_WAR },
  69         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  70                          0x002A,
  71                          0x10CF, /* Fujitsu */
  72                          0x147D),
  73           .driver_data = ATH9K_PCI_D3_L1_WAR },
  74         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  75                          0x002A,
  76                          0x10CF, /* Fujitsu */
  77                          0x1536),
  78           .driver_data = ATH9K_PCI_D3_L1_WAR },
  79
  80         /* AR9285 card for Asus */
  81         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  82                          0x002B,
  83                          PCI_VENDOR_ID_AZWAVE,
  84                          0x2C37),
  85           .driver_data = ATH9K_PCI_BT_ANT_DIV },
  86 #endif
  87
  88         { PCI_VDEVICE(ATHEROS, 0x002B) }, /* PCI-E */
  89         { PCI_VDEVICE(ATHEROS, 0x002C) }, /* PCI-E 802.11n bonded out */
  90         { PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI   */
  91         { PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */
  92
  93         /* Killer Wireless (3x3) */
  94         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
  95                          0x0030,
  96                          0x1A56,
  97                          0x2000),
  98           .driver_data = ATH9K_PCI_KILLER },
  99         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 100                          0x0030,
 101                          0x1A56,
 102                          0x2001),
 103           .driver_data = ATH9K_PCI_KILLER },
 104
 105         { PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E  AR9300 */
 106
 107 #ifdef CONFIG_ATH9K_PCOEM
 108         /* PCI-E CUS198 */
 109         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 110                          0x0032,
 111                          PCI_VENDOR_ID_AZWAVE,
 112                          0x2086),
 113           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 114         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 115                          0x0032,
 116                          PCI_VENDOR_ID_AZWAVE,
 117                          0x1237),
 118           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 119         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 120                          0x0032,
 121                          PCI_VENDOR_ID_AZWAVE,
 122                          0x2126),
 123           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 124         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 125                          0x0032,
 126                          PCI_VENDOR_ID_AZWAVE,
 127                          0x126A),
 128           .driver_data = ATH9K_PCI_CUS198 | ATH9K_PCI_BT_ANT_DIV },
 129
 130         /* PCI-E CUS230 */
 131         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 132                          0x0032,
 133                          PCI_VENDOR_ID_AZWAVE,
 134                          0x2152),
 135           .driver_data = ATH9K_PCI_CUS230 | ATH9K_PCI_BT_ANT_DIV },
 136         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 137                          0x0032,
 138                          PCI_VENDOR_ID_FOXCONN,
 139                          0xE075),
 140           .driver_data = ATH9K_PCI_CUS230 | ATH9K_PCI_BT_ANT_DIV },
 141
 142         /* WB225 */
 143         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 144                          0x0032,
 145                          PCI_VENDOR_ID_ATHEROS,
 146                          0x3119),
 147           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 148         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 149                          0x0032,
 150                          PCI_VENDOR_ID_ATHEROS,
 151                          0x3122),
 152           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 153         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 154                          0x0032,
 155                          0x185F, /* WNC */
 156                          0x3119),
 157           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 158         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 159                          0x0032,
 160                          0x185F, /* WNC */
 161                          0x3027),
 162           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 163         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 164                          0x0032,
 165                          PCI_VENDOR_ID_SAMSUNG,
 166                          0x4105),
 167           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 168         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 169                          0x0032,
 170                          PCI_VENDOR_ID_SAMSUNG,
 171                          0x4106),
 172           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 173         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 174                          0x0032,
 175                          PCI_VENDOR_ID_SAMSUNG,
 176                          0x410D),
 177           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 178         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 179                          0x0032,
 180                          PCI_VENDOR_ID_SAMSUNG,
 181                          0x410E),
 182           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 183         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 184                          0x0032,
 185                          PCI_VENDOR_ID_SAMSUNG,
 186                          0x410F),
 187           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 188         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 189                          0x0032,
 190                          PCI_VENDOR_ID_SAMSUNG,
 191                          0xC706),
 192           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 193         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 194                          0x0032,
 195                          PCI_VENDOR_ID_SAMSUNG,
 196                          0xC680),
 197           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 198         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 199                          0x0032,
 200                          PCI_VENDOR_ID_SAMSUNG,
 201                          0xC708),
 202           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 203         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 204                          0x0032,
 205                          PCI_VENDOR_ID_LENOVO,
 206                          0x3218),
 207           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 208         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 209                          0x0032,
 210                          PCI_VENDOR_ID_LENOVO,
 211                          0x3219),
 212           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 213
 214         /* AR9485 cards with PLL power-save disabled by default. */
 215         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 216                          0x0032,
 217                          PCI_VENDOR_ID_AZWAVE,
 218                          0x2C97),
 219           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 220         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 221                          0x0032,
 222                          PCI_VENDOR_ID_AZWAVE,
 223                          0x2100),
 224           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 225         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 226                          0x0032,
 227                          0x1C56, /* ASKEY */
 228                          0x4001),
 229           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 230         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 231                          0x0032,
 232                          0x11AD, /* LITEON */
 233                          0x6627),
 234           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 235         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 236                          0x0032,
 237                          0x11AD, /* LITEON */
 238                          0x6628),
 239           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 240         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 241                          0x0032,
 242                          PCI_VENDOR_ID_FOXCONN,
 243                          0xE04E),
 244           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 245         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 246                          0x0032,
 247                          PCI_VENDOR_ID_FOXCONN,
 248                          0xE04F),
 249           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 250         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 251                          0x0032,
 252                          0x144F, /* ASKEY */
 253                          0x7197),
 254           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 255         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 256                          0x0032,
 257                          0x1B9A, /* XAVI */
 258                          0x2000),
 259           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 260         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 261                          0x0032,
 262                          0x1B9A, /* XAVI */
 263                          0x2001),
 264           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 265         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 266                          0x0032,
 267                          PCI_VENDOR_ID_AZWAVE,
 268                          0x1186),
 269           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 270         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 271                          0x0032,
 272                          PCI_VENDOR_ID_AZWAVE,
 273                          0x1F86),
 274           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 275         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 276                          0x0032,
 277                          PCI_VENDOR_ID_AZWAVE,
 278                          0x1195),
 279           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 280         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 281                          0x0032,
 282                          PCI_VENDOR_ID_AZWAVE,
 283                          0x1F95),
 284           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 285         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 286                          0x0032,
 287                          0x1B9A, /* XAVI */
 288                          0x1C00),
 289           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 290         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 291                          0x0032,
 292                          0x1B9A, /* XAVI */
 293                          0x1C01),
 294           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 295         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 296                          0x0032,
 297                          PCI_VENDOR_ID_ASUSTEK,
 298                          0x850D),
 299           .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
 300 #endif
 301
 302         { PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
 303         { PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
 304
 305 #ifdef CONFIG_ATH9K_PCOEM
 306         /* PCI-E CUS217 */
 307         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 308                          0x0034,
 309                          PCI_VENDOR_ID_AZWAVE,
 310                          0x2116),
 311           .driver_data = ATH9K_PCI_CUS217 },
 312         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 313                          0x0034,
 314                          0x11AD, /* LITEON */
 315                          0x6661),
 316           .driver_data = ATH9K_PCI_CUS217 },
 317
 318         /* AR9462 with WoW support */
 319         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 320                          0x0034,
 321                          PCI_VENDOR_ID_ATHEROS,
 322                          0x3117),
 323           .driver_data = ATH9K_PCI_WOW },
 324         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 325                          0x0034,
 326                          PCI_VENDOR_ID_LENOVO,
 327                          0x3214),
 328           .driver_data = ATH9K_PCI_WOW },
 329         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 330                          0x0034,
 331                          PCI_VENDOR_ID_ATTANSIC,
 332                          0x0091),
 333           .driver_data = ATH9K_PCI_WOW },
 334         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 335                          0x0034,
 336                          PCI_VENDOR_ID_AZWAVE,
 337                          0x2110),
 338           .driver_data = ATH9K_PCI_WOW },
 339         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 340                          0x0034,
 341                          PCI_VENDOR_ID_ASUSTEK,
 342                          0x850E),
 343           .driver_data = ATH9K_PCI_WOW },
 344         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 345                          0x0034,
 346                          0x11AD, /* LITEON */
 347                          0x6631),
 348           .driver_data = ATH9K_PCI_WOW },
 349         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 350                          0x0034,
 351                          0x11AD, /* LITEON */
 352                          0x6641),
 353           .driver_data = ATH9K_PCI_WOW },
 354         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 355                          0x0034,
 356                          PCI_VENDOR_ID_HP,
 357                          0x1864),
 358           .driver_data = ATH9K_PCI_WOW },
 359         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 360                          0x0034,
 361                          0x14CD, /* USI */
 362                          0x0063),
 363           .driver_data = ATH9K_PCI_WOW },
 364         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 365                          0x0034,
 366                          0x14CD, /* USI */
 367                          0x0064),
 368           .driver_data = ATH9K_PCI_WOW },
 369         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 370                          0x0034,
 371                          0x10CF, /* Fujitsu */
 372                          0x1783),
 373           .driver_data = ATH9K_PCI_WOW },
 374
 375         /* Killer Wireless (2x2) */
 376         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 377                          0x0030,
 378                          0x1A56,
 379                          0x2003),
 380           .driver_data = ATH9K_PCI_KILLER },
 381
 382         { PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
 383         { PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
 384
 385         /* CUS252 */
 386         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 387                          0x0036,
 388                          PCI_VENDOR_ID_ATHEROS,
 389                          0x3028),
 390           .driver_data = ATH9K_PCI_CUS252 |
 391                          ATH9K_PCI_AR9565_2ANT |
 392                          ATH9K_PCI_BT_ANT_DIV },
 393         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 394                          0x0036,
 395                          PCI_VENDOR_ID_AZWAVE,
 396                          0x2176),
 397           .driver_data = ATH9K_PCI_CUS252 |
 398                          ATH9K_PCI_AR9565_2ANT |
 399                          ATH9K_PCI_BT_ANT_DIV },
 400
 401         /* WB335 1-ANT */
 402         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 403                          0x0036,
 404                          PCI_VENDOR_ID_FOXCONN,
 405                          0xE068),
 406           .driver_data = ATH9K_PCI_AR9565_1ANT },
 407         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 408                          0x0036,
 409                          0x185F, /* WNC */
 410                          0xA119),
 411           .driver_data = ATH9K_PCI_AR9565_1ANT },
 412         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 413                          0x0036,
 414                          0x11AD, /* LITEON */
 415                          0x0632),
 416           .driver_data = ATH9K_PCI_AR9565_1ANT },
 417         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 418                          0x0036,
 419                          0x11AD, /* LITEON */
 420                          0x06B2),
 421           .driver_data = ATH9K_PCI_AR9565_1ANT },
 422         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 423                          0x0036,
 424                          0x11AD, /* LITEON */
 425                          0x0842),
 426           .driver_data = ATH9K_PCI_AR9565_1ANT },
 427         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 428                          0x0036,
 429                          0x11AD, /* LITEON */
 430                          0x1842),
 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                          0x1B9A, /* XAVI */
 455                          0x28A3),
 456           .driver_data = ATH9K_PCI_AR9565_1ANT },
 457         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 458                          0x0036,
 459                          PCI_VENDOR_ID_AZWAVE,
 460                          0x218A),
 461           .driver_data = ATH9K_PCI_AR9565_1ANT },
 462         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 463                          0x0036,
 464                          PCI_VENDOR_ID_AZWAVE,
 465                          0x2F8A),
 466           .driver_data = ATH9K_PCI_AR9565_1ANT },
 467
 468         /* WB335 1-ANT / Antenna Diversity */
 469         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 470                          0x0036,
 471                          PCI_VENDOR_ID_ATHEROS,
 472                          0x3025),
 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_ATHEROS,
 477                          0x3026),
 478           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 479         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 480                          0x0036,
 481                          PCI_VENDOR_ID_ATHEROS,
 482                          0x302B),
 483           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 484         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 485                          0x0036,
 486                          PCI_VENDOR_ID_FOXCONN,
 487                          0xE069),
 488           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 489         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 490                          0x0036,
 491                          0x185F, /* WNC */
 492                          0x3028),
 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                          0x0622),
 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                          0x0672),
 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                          0x0662),
 508           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 509         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 510                          0x0036,
 511                          0x11AD, /* LITEON */
 512                          0x06A2),
 513           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 514         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 515                          0x0036,
 516                          0x11AD, /* LITEON */
 517                          0x0682),
 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_AZWAVE,
 522                          0x213A),
 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_AZWAVE,
 527                          0x213C),
 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_HP,
 532                          0x18E3),
 533           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 534         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 535                          0x0036,
 536                          PCI_VENDOR_ID_HP,
 537                          0x217F),
 538           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 539         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 540                          0x0036,
 541                          PCI_VENDOR_ID_HP,
 542                          0x2005),
 543           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 544         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 545                          0x0036,
 546                          PCI_VENDOR_ID_DELL,
 547                          0x020C),
 548           .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 549
 550         /* WB335 2-ANT / Antenna-Diversity */
 551         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 552                          0x0036,
 553                          PCI_VENDOR_ID_SAMSUNG,
 554                          0x411A),
 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                          0x411B),
 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_SAMSUNG,
 564                          0x411C),
 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_SAMSUNG,
 569                          0x411D),
 570           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 571         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 572                          0x0036,
 573                          PCI_VENDOR_ID_SAMSUNG,
 574                          0x411E),
 575           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 576         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 577                          0x0036,
 578                          PCI_VENDOR_ID_SAMSUNG,
 579                          0x4129),
 580           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 581         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 582                          0x0036,
 583                          PCI_VENDOR_ID_SAMSUNG,
 584                          0x412A),
 585           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 586         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 587                          0x0036,
 588                          PCI_VENDOR_ID_ATHEROS,
 589                          0x3027),
 590           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 591         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 592                          0x0036,
 593                          PCI_VENDOR_ID_ATHEROS,
 594                          0x302C),
 595           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 596         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 597                          0x0036,
 598                          0x11AD, /* LITEON */
 599                          0x0642),
 600           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 601         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 602                          0x0036,
 603                          0x11AD, /* LITEON */
 604                          0x0652),
 605           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 606         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 607                          0x0036,
 608                          0x11AD, /* LITEON */
 609                          0x0612),
 610           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 611         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 612                          0x0036,
 613                          0x11AD, /* LITEON */
 614                          0x0832),
 615           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 616         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 617                          0x0036,
 618                          0x11AD, /* LITEON */
 619                          0x1832),
 620           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 621         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 622                          0x0036,
 623                          0x11AD, /* LITEON */
 624                          0x0692),
 625           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 626         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 627                          0x0036,
 628                          0x11AD, /* LITEON */
 629                          0x0803),
 630           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 631         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 632                          0x0036,
 633                          0x11AD, /* LITEON */
 634                          0x0813),
 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_AZWAVE,
 639                          0x2130),
 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_AZWAVE,
 644                          0x213B),
 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_AZWAVE,
 649                          0x2182),
 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_AZWAVE,
 654                          0x218B),
 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_AZWAVE,
 659                          0x218C),
 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_AZWAVE,
 664                          0x2F82),
 665           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 666         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 667                          0x0036,
 668                          0x144F, /* ASKEY */
 669                          0x7202),
 670           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 671         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 672                          0x0036,
 673                          0x1B9A, /* XAVI */
 674                          0x2810),
 675           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 676         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 677                          0x0036,
 678                          0x1B9A, /* XAVI */
 679                          0x2813),
 680           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 681         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 682                          0x0036,
 683                          0x1B9A, /* XAVI */
 684                          0x28A2),
 685           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 686         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 687                          0x0036,
 688                          0x1B9A, /* XAVI */
 689                          0x28A4),
 690           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 691         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 692                          0x0036,
 693                          0x185F, /* WNC */
 694                          0x3027),
 695           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 696         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 697                          0x0036,
 698                          0x185F, /* WNC */
 699                          0xA120),
 700           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 701         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 702                          0x0036,
 703                          PCI_VENDOR_ID_FOXCONN,
 704                          0xE07F),
 705           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 706         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 707                          0x0036,
 708                          PCI_VENDOR_ID_FOXCONN,
 709                          0xE08F),
 710           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 711         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 712                          0x0036,
 713                          PCI_VENDOR_ID_FOXCONN,
 714                          0xE081),
 715           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 716         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 717                          0x0036,
 718                          PCI_VENDOR_ID_FOXCONN,
 719                          0xE091),
 720           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 721         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 722                          0x0036,
 723                          PCI_VENDOR_ID_FOXCONN,
 724                          0xE099),
 725           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 726         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 727                          0x0036,
 728                          PCI_VENDOR_ID_LENOVO,
 729                          0x3026),
 730           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 731         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 732                          0x0036,
 733                          PCI_VENDOR_ID_LENOVO,
 734                          0x4026),
 735           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 736         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 737                          0x0036,
 738                          PCI_VENDOR_ID_ASUSTEK,
 739                          0x85F2),
 740           .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 741         { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 742                          0x0036,
 743                          PCI_VENDOR_ID_DELL,
 744                          0x020E),
 745           .driver_data = ATH9K_PCI_AR9565_2ANT |
 746                          ATH9K_PCI_BT_ANT_DIV |
 747                          ATH9K_PCI_LED_ACT_HI},
 748
 749         /* PCI-E AR9565 (WB335) */
 750         { PCI_VDEVICE(ATHEROS, 0x0036),
 751           .driver_data = ATH9K_PCI_BT_ANT_DIV },
 752 #endif
 753
 754         { 0 }
 755 };
 756
 757
 758 /* return bus cachesize in 4B word units */
 759 static void ath_pci_read_cachesize(struct ath_common *common, int *csz)
 760 {
 761         struct ath_softc *sc = (struct ath_softc *) common->priv;
 762         u8 u8tmp;
 763
 764         pci_read_config_byte(to_pci_dev(sc->dev), PCI_CACHE_LINE_SIZE, &u8tmp);
 765         *csz = (int)u8tmp;
 766
 767         /*
 768          * This check was put in to avoid "unpleasant" consequences if
 769          * the bootrom has not fully initialized all PCI devices.
 770          * Sometimes the cache line size register is not set
 771          */
 772
 773         if (*csz == 0)
 774                 *csz = DEFAULT_CACHELINE >> 2;   /* Use the default size */
 775 }
 776
 777 static bool ath_pci_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 778 {
 779         struct ath_softc *sc = (struct ath_softc *) common->priv;
 780         struct ath9k_platform_data *pdata = sc->dev->platform_data;
 781
 782         if (pdata && !pdata->use_eeprom) {
 783                 if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
 784                         ath_err(common,
 785                                 "%s: eeprom read failed, offset %08x is out of range\n",
 786                                 __func__, off);
 787                 }
 788
 789                 *data = pdata->eeprom_data[off];
 790         } else {
 791                 struct ath_hw *ah = (struct ath_hw *) common->ah;
 792
 793                 common->ops->read(ah, AR5416_EEPROM_OFFSET +
 794                                       (off << AR5416_EEPROM_S));
 795
 796                 if (!ath9k_hw_wait(ah,
 797                                    AR_EEPROM_STATUS_DATA,
 798                                    AR_EEPROM_STATUS_DATA_BUSY |
 799                                    AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 800                                    AH_WAIT_TIMEOUT)) {
 801                         return false;
 802                 }
 803
 804                 *data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
 805                            AR_EEPROM_STATUS_DATA_VAL);
 806         }
 807
 808         return true;
 809 }
 810
 811 /* Need to be called after we discover btcoex capabilities */
 812 static void ath_pci_aspm_init(struct ath_common *common)
 813 {
 814         struct ath_softc *sc = (struct ath_softc *) common->priv;
 815         struct ath_hw *ah = sc->sc_ah;
 816         struct pci_dev *pdev = to_pci_dev(sc->dev);
 817         struct pci_dev *parent;
 818         u16 aspm;
 819
 820         if (!ah->is_pciexpress)
 821                 return;
 822
 823         parent = pdev->bus->self;
 824         if (!parent)
 825                 return;
 826
 827         if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
 828             (AR_SREV_9285(ah))) {
 829                 /* Bluetooth coexistence requires disabling ASPM. */
 830                 pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL,
 831                         PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
 832
 833                 /*
 834                  * Both upstream and downstream PCIe components should
 835                  * have the same ASPM settings.
 836                  */
 837                 pcie_capability_clear_word(parent, PCI_EXP_LNKCTL,
 838                         PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
 839
 840                 ath_info(common, "Disabling ASPM since BTCOEX is enabled\n");
 841                 return;
 842         }
 843
 844         /*
 845          * 0x70c - Ack Frequency Register.
 846          *
 847          * Bits 27:29 - DEFAULT_L1_ENTRANCE_LATENCY.
 848          *
 849          * 000 : 1 us
 850          * 001 : 2 us
 851          * 010 : 4 us
 852          * 011 : 8 us
 853          * 100 : 16 us
 854          * 101 : 32 us
 855          * 110/111 : 64 us
 856          */
 857         if (AR_SREV_9462(ah))
 858                 pci_read_config_dword(pdev, 0x70c, &ah->config.aspm_l1_fix);
 859
 860         pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &aspm);
 861         if (aspm & (PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1)) {
 862                 ah->aspm_enabled = true;
 863                 /* Initialize PCIe PM and SERDES registers. */
 864                 ath9k_hw_configpcipowersave(ah, false);
 865                 ath_info(common, "ASPM enabled: 0x%x\n", aspm);
 866         }
 867 }
 868
 869 static const struct ath_bus_ops ath_pci_bus_ops = {
 870         .ath_bus_type = ATH_PCI,
 871         .read_cachesize = ath_pci_read_cachesize,
 872         .eeprom_read = ath_pci_eeprom_read,
 873         .aspm_init = ath_pci_aspm_init,
 874 };
 875
 876 static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 877 {
 878         struct ath_softc *sc;
 879         struct ieee80211_hw *hw;
 880         u8 csz;
 881         u32 val;
 882         int ret = 0;
 883         char hw_name[64];
 884
 885         if (pcim_enable_device(pdev))
 886                 return -EIO;
 887
 888         ret =  pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 889         if (ret) {
 890                 pr_err("32-bit DMA not available\n");
 891                 return ret;
 892         }
 893
 894         ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 895         if (ret) {
 896                 pr_err("32-bit DMA consistent DMA enable failed\n");
 897                 return ret;
 898         }
 899
 900         /*
 901          * Cache line size is used to size and align various
 902          * structures used to communicate with the hardware.
 903          */
 904         pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz);
 905         if (csz == 0) {
 906                 /*
 907                  * Linux 2.4.18 (at least) writes the cache line size
 908                  * register as a 16-bit wide register which is wrong.
 909                  * We must have this setup properly for rx buffer
 910                  * DMA to work so force a reasonable value here if it
 911                  * comes up zero.
 912                  */
 913                 csz = L1_CACHE_BYTES / sizeof(u32);
 914                 pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz);
 915         }
 916         /*
 917          * The default setting of latency timer yields poor results,
 918          * set it to the value used by other systems. It may be worth
 919          * tweaking this setting more.
 920          */
 921         pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8);
 922
 923         pci_set_master(pdev);
 924
 925         /*
 926          * Disable the RETRY_TIMEOUT register (0x41) to keep
 927          * PCI Tx retries from interfering with C3 CPU state.
 928          */
 929         pci_read_config_dword(pdev, 0x40, &val);
 930         if ((val & 0x0000ff00) != 0)
 931                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
 932
 933         ret = pcim_iomap_regions(pdev, BIT(0), "ath9k");
 934         if (ret) {
 935                 dev_err(&pdev->dev, "PCI memory region reserve error\n");
 936                 return -ENODEV;
 937         }
 938
 939         ath9k_fill_chanctx_ops();
 940         hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops);
 941         if (!hw) {
 942                 dev_err(&pdev->dev, "No memory for ieee80211_hw\n");
 943                 return -ENOMEM;
 944         }
 945
 946         SET_IEEE80211_DEV(hw, &pdev->dev);
 947         pci_set_drvdata(pdev, hw);
 948
 949         sc = hw->priv;
 950         sc->hw = hw;
 951         sc->dev = &pdev->dev;
 952         sc->mem = pcim_iomap_table(pdev)[0];
 953         sc->driver_data = id->driver_data;
 954
 955         ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc);
 956         if (ret) {
 957                 dev_err(&pdev->dev, "request_irq failed\n");
 958                 goto err_irq;
 959         }
 960
 961         sc->irq = pdev->irq;
 962
 963         ret = ath9k_init_device(id->device, sc, &ath_pci_bus_ops);
 964         if (ret) {
 965                 dev_err(&pdev->dev, "Failed to initialize device\n");
 966                 goto err_init;
 967         }
 968
 969         ath9k_hw_name(sc->sc_ah, hw_name, sizeof(hw_name));
 970         wiphy_info(hw->wiphy, "%s mem=0x%lx, irq=%d\n",
 971                    hw_name, (unsigned long)sc->mem, pdev->irq);
 972
 973         return 0;
 974
 975 err_init:
 976         free_irq(sc->irq, sc);
 977 err_irq:
 978         ieee80211_free_hw(hw);
 979         return ret;
 980 }
 981
 982 static void ath_pci_remove(struct pci_dev *pdev)
 983 {
 984         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
 985         struct ath_softc *sc = hw->priv;
 986
 987         if (!is_ath9k_unloaded)
 988                 sc->sc_ah->ah_flags |= AH_UNPLUGGED;
 989         ath9k_deinit_device(sc);
 990         free_irq(sc->irq, sc);
 991         ieee80211_free_hw(sc->hw);
 992 }
 993
 994 #ifdef CONFIG_PM_SLEEP
 995
 996 static int ath_pci_suspend(struct device *device)
 997 {
 998         struct pci_dev *pdev = to_pci_dev(device);
 999         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
1000         struct ath_softc *sc = hw->priv;
1001         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1002
1003         if (test_bit(ATH_OP_WOW_ENABLED, &common->op_flags)) {
1004                 dev_info(&pdev->dev, "WOW is enabled, bypassing PCI suspend\n");
1005                 return 0;
1006         }
1007
1008         /* The device has to be moved to FULLSLEEP forcibly.
1009          * Otherwise the chip never moved to full sleep,
1010          * when no interface is up.
1011          */
1012         ath9k_stop_btcoex(sc);
1013         ath9k_hw_disable(sc->sc_ah);
1014         del_timer_sync(&sc->sleep_timer);
1015         ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
1016
1017         return 0;
1018 }
1019
1020 static int ath_pci_resume(struct device *device)
1021 {
1022         struct pci_dev *pdev = to_pci_dev(device);
1023         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
1024         struct ath_softc *sc = hw->priv;
1025         struct ath_hw *ah = sc->sc_ah;
1026         struct ath_common *common = ath9k_hw_common(ah);
1027         u32 val;
1028
1029         /*
1030          * Suspend/Resume resets the PCI configuration space, so we have to
1031          * re-disable the RETRY_TIMEOUT register (0x41) to keep
1032          * PCI Tx retries from interfering with C3 CPU state
1033          */
1034         pci_read_config_dword(pdev, 0x40, &val);
1035         if ((val & 0x0000ff00) != 0)
1036                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1037
1038         ath_pci_aspm_init(common);
1039         ah->reset_power_on = false;
1040
1041         return 0;
1042 }
1043
1044 static SIMPLE_DEV_PM_OPS(ath9k_pm_ops, ath_pci_suspend, ath_pci_resume);
1045
1046 #define ATH9K_PM_OPS    (&ath9k_pm_ops)
1047
1048 #else /* !CONFIG_PM_SLEEP */
1049
1050 #define ATH9K_PM_OPS    NULL
1051
1052 #endif /* !CONFIG_PM_SLEEP */
1053
1054
1055 MODULE_DEVICE_TABLE(pci, ath_pci_id_table);
1056
1057 static struct pci_driver ath_pci_driver = {
1058         .name       = "ath9k",
1059         .id_table   = ath_pci_id_table,
1060         .probe      = ath_pci_probe,
1061         .remove     = ath_pci_remove,
1062         .driver.pm  = ATH9K_PM_OPS,
1063 };
1064
1065 int ath_pci_init(void)
1066 {
1067         return pci_register_driver(&ath_pci_driver);
1068 }
1069
1070 void ath_pci_exit(void)
1071 {
1072         pci_unregister_driver(&ath_pci_driver);
1073 }