drivers/net/wireless/iwlwifi/iwl-pci.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called LICENSE.GPL.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63 #include <linux/module.h>
  64 #include <linux/pci.h>
  65 #include <linux/pci-aspm.h>
  66
  67 #include "iwl-bus.h"
  68 #include "iwl-io.h"
  69 #include "iwl-shared.h"
  70 #include "iwl-trans.h"
  71 #include "iwl-csr.h"
  72 #include "iwl-cfg.h"
  73
  74 /* PCI registers */
  75 #define PCI_CFG_RETRY_TIMEOUT   0x041
  76 #define PCI_CFG_LINK_CTRL_VAL_L0S_EN    0x01
  77 #define PCI_CFG_LINK_CTRL_VAL_L1_EN     0x02
  78
  79 struct iwl_pci_bus {
  80         /* basic pci-network driver stuff */
  81         struct pci_dev *pci_dev;
  82
  83         /* pci hardware address support */
  84         void __iomem *hw_base;
  85 };
  86
  87 #define IWL_BUS_GET_PCI_BUS(_iwl_bus) \
  88                         ((struct iwl_pci_bus *) ((_iwl_bus)->bus_specific))
  89
  90 #define IWL_BUS_GET_PCI_DEV(_iwl_bus) \
  91                         ((IWL_BUS_GET_PCI_BUS(_iwl_bus))->pci_dev)
  92
  93 static u16 iwl_pciexp_link_ctrl(struct iwl_bus *bus)
  94 {
  95         int pos;
  96         u16 pci_lnk_ctl;
  97
  98         struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);
  99
 100         pos = pci_pcie_cap(pci_dev);
 101         pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 102         return pci_lnk_ctl;
 103 }
 104
 105 static bool iwl_pci_is_pm_supported(struct iwl_bus *bus)
 106 {
 107         u16 lctl = iwl_pciexp_link_ctrl(bus);
 108
 109         return !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
 110 }
 111
 112 static void iwl_pci_apm_config(struct iwl_bus *bus)
 113 {
 114         /*
 115          * HW bug W/A for instability in PCIe bus L0S->L1 transition.
 116          * Check if BIOS (or OS) enabled L1-ASPM on this device.
 117          * If so (likely), disable L0S, so device moves directly L0->L1;
 118          *    costs negligible amount of power savings.
 119          * If not (unlikely), enable L0S, so there is at least some
 120          *    power savings, even without L1.
 121          */
 122         u16 lctl = iwl_pciexp_link_ctrl(bus);
 123
 124         if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
 125                                 PCI_CFG_LINK_CTRL_VAL_L1_EN) {
 126                 /* L1-ASPM enabled; disable(!) L0S */
 127                 iwl_set_bit(bus, CSR_GIO_REG,
 128                                 CSR_GIO_REG_VAL_L0S_ENABLED);
 129                 dev_printk(KERN_INFO, bus->dev, "L1 Enabled; Disabling L0S\n");
 130         } else {
 131                 /* L1-ASPM disabled; enable(!) L0S */
 132                 iwl_clear_bit(bus, CSR_GIO_REG,
 133                                 CSR_GIO_REG_VAL_L0S_ENABLED);
 134                 dev_printk(KERN_INFO, bus->dev, "L1 Disabled; Enabling L0S\n");
 135         }
 136 }
 137
 138 static void iwl_pci_get_hw_id(struct iwl_bus *bus, char buf[],
 139                               int buf_len)
 140 {
 141         struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);
 142
 143         snprintf(buf, buf_len, "PCI ID: 0x%04X:0x%04X", pci_dev->device,
 144                  pci_dev->subsystem_device);
 145 }
 146
 147 static void iwl_pci_write8(struct iwl_bus *bus, u32 ofs, u8 val)
 148 {
 149         iowrite8(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
 150 }
 151
 152 static void iwl_pci_write32(struct iwl_bus *bus, u32 ofs, u32 val)
 153 {
 154         iowrite32(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
 155 }
 156
 157 static u32 iwl_pci_read32(struct iwl_bus *bus, u32 ofs)
 158 {
 159         u32 val = ioread32(IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
 160         return val;
 161 }
 162
 163 static const struct iwl_bus_ops bus_ops_pci = {
 164         .get_pm_support = iwl_pci_is_pm_supported,
 165         .apm_config = iwl_pci_apm_config,
 166         .get_hw_id = iwl_pci_get_hw_id,
 167         .write8 = iwl_pci_write8,
 168         .write32 = iwl_pci_write32,
 169         .read32 = iwl_pci_read32,
 170 };
 171
 172 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
 173         .vendor = PCI_VENDOR_ID_INTEL,  .device = (dev), \
 174         .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
 175         .driver_data = (kernel_ulong_t)&(cfg)
 176
 177 /* Hardware specific file defines the PCI IDs table for that hardware module */
 178 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 179         {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
 180         {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
 181         {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
 182         {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */
 183         {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */
 184         {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */
 185         {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */
 186         {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */
 187         {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */
 188         {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */
 189         {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */
 190         {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */
 191         {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */
 192         {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */
 193         {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */
 194         {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */
 195         {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */
 196         {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */
 197         {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */
 198         {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */
 199         {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */
 200         {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */
 201         {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */
 202         {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */
 203
 204 /* 5300 Series WiFi */
 205         {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */
 206         {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */
 207         {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */
 208         {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */
 209         {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */
 210         {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */
 211         {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */
 212         {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */
 213         {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */
 214         {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */
 215         {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */
 216         {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */
 217
 218 /* 5350 Series WiFi/WiMax */
 219         {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */
 220         {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */
 221         {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */
 222
 223 /* 5150 Series Wifi/WiMax */
 224         {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */
 225         {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */
 226         {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */
 227         {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */
 228         {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */
 229         {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */
 230         {IWL_PCI_DEVICE(0x423C, 0x1326, iwl5150_abg_cfg)}, /* Half Mini Card */
 231
 232         {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */
 233         {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */
 234         {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */
 235         {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */
 236
 237 /* 6x00 Series */
 238         {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
 239         {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
 240         {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
 241         {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
 242         {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
 243         {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
 244         {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
 245         {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
 246         {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
 247         {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},
 248
 249 /* 6x05 Series */
 250         {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)},
 251         {IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)},
 252         {IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)},
 253         {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)},
 254         {IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)},
 255         {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)},
 256         {IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)},
 257         {IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg)},
 258         {IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg)},
 259         {IWL_PCI_DEVICE(0x0082, 0x4820, iwl6005_2agn_d_cfg)},
 260         {IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_mow1_cfg)},/* low 5GHz active */
 261         {IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_mow2_cfg)},/* high 5GHz active */
 262
 263 /* 6x30 Series */
 264         {IWL_PCI_DEVICE(0x008A, 0x5305, iwl1030_bgn_cfg)},
 265         {IWL_PCI_DEVICE(0x008A, 0x5307, iwl1030_bg_cfg)},
 266         {IWL_PCI_DEVICE(0x008A, 0x5325, iwl1030_bgn_cfg)},
 267         {IWL_PCI_DEVICE(0x008A, 0x5327, iwl1030_bg_cfg)},
 268         {IWL_PCI_DEVICE(0x008B, 0x5315, iwl1030_bgn_cfg)},
 269         {IWL_PCI_DEVICE(0x008B, 0x5317, iwl1030_bg_cfg)},
 270         {IWL_PCI_DEVICE(0x0090, 0x5211, iwl6030_2agn_cfg)},
 271         {IWL_PCI_DEVICE(0x0090, 0x5215, iwl6030_2bgn_cfg)},
 272         {IWL_PCI_DEVICE(0x0090, 0x5216, iwl6030_2abg_cfg)},
 273         {IWL_PCI_DEVICE(0x0091, 0x5201, iwl6030_2agn_cfg)},
 274         {IWL_PCI_DEVICE(0x0091, 0x5205, iwl6030_2bgn_cfg)},
 275         {IWL_PCI_DEVICE(0x0091, 0x5206, iwl6030_2abg_cfg)},
 276         {IWL_PCI_DEVICE(0x0091, 0x5207, iwl6030_2bg_cfg)},
 277         {IWL_PCI_DEVICE(0x0091, 0x5221, iwl6030_2agn_cfg)},
 278         {IWL_PCI_DEVICE(0x0091, 0x5225, iwl6030_2bgn_cfg)},
 279         {IWL_PCI_DEVICE(0x0091, 0x5226, iwl6030_2abg_cfg)},
 280
 281 /* 6x50 WiFi/WiMax Series */
 282         {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
 283         {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
 284         {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)},
 285         {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)},
 286         {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)},
 287         {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)},
 288
 289 /* 6150 WiFi/WiMax Series */
 290         {IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg)},
 291         {IWL_PCI_DEVICE(0x0885, 0x1307, iwl6150_bg_cfg)},
 292         {IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg)},
 293         {IWL_PCI_DEVICE(0x0885, 0x1327, iwl6150_bg_cfg)},
 294         {IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg)},
 295         {IWL_PCI_DEVICE(0x0886, 0x1317, iwl6150_bg_cfg)},
 296
 297 /* 1000 Series WiFi */
 298         {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},
 299         {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)},
 300         {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)},
 301         {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)},
 302         {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)},
 303         {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)},
 304         {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)},
 305         {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)},
 306         {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)},
 307         {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)},
 308         {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)},
 309         {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)},
 310
 311 /* 100 Series WiFi */
 312         {IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg)},
 313         {IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg)},
 314         {IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg)},
 315         {IWL_PCI_DEVICE(0x08AF, 0x1017, iwl100_bg_cfg)},
 316         {IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg)},
 317         {IWL_PCI_DEVICE(0x08AE, 0x1027, iwl100_bg_cfg)},
 318
 319 /* 130 Series WiFi */
 320         {IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg)},
 321         {IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg)},
 322         {IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg)},
 323         {IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg)},
 324         {IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg)},
 325         {IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg)},
 326
 327 /* 2x00 Series */
 328         {IWL_PCI_DEVICE(0x0890, 0x4022, iwl2000_2bgn_cfg)},
 329         {IWL_PCI_DEVICE(0x0891, 0x4222, iwl2000_2bgn_cfg)},
 330         {IWL_PCI_DEVICE(0x0890, 0x4422, iwl2000_2bgn_cfg)},
 331         {IWL_PCI_DEVICE(0x0890, 0x4822, iwl2000_2bgn_d_cfg)},
 332
 333 /* 2x30 Series */
 334         {IWL_PCI_DEVICE(0x0887, 0x4062, iwl2030_2bgn_cfg)},
 335         {IWL_PCI_DEVICE(0x0888, 0x4262, iwl2030_2bgn_cfg)},
 336         {IWL_PCI_DEVICE(0x0887, 0x4462, iwl2030_2bgn_cfg)},
 337
 338 /* 6x35 Series */
 339         {IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)},
 340         {IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)},
 341         {IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)},
 342         {IWL_PCI_DEVICE(0x088E, 0x4860, iwl6035_2agn_cfg)},
 343         {IWL_PCI_DEVICE(0x088F, 0x5260, iwl6035_2agn_cfg)},
 344
 345 /* 105 Series */
 346         {IWL_PCI_DEVICE(0x0894, 0x0022, iwl105_bgn_cfg)},
 347         {IWL_PCI_DEVICE(0x0895, 0x0222, iwl105_bgn_cfg)},
 348         {IWL_PCI_DEVICE(0x0894, 0x0422, iwl105_bgn_cfg)},
 349         {IWL_PCI_DEVICE(0x0894, 0x0822, iwl105_bgn_d_cfg)},
 350
 351 /* 135 Series */
 352         {IWL_PCI_DEVICE(0x0892, 0x0062, iwl135_bgn_cfg)},
 353         {IWL_PCI_DEVICE(0x0893, 0x0262, iwl135_bgn_cfg)},
 354         {IWL_PCI_DEVICE(0x0892, 0x0462, iwl135_bgn_cfg)},
 355
 356         {0}
 357 };
 358 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
 359
 360 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 361 {
 362         struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
 363         struct iwl_bus *bus;
 364         struct iwl_pci_bus *pci_bus;
 365         u16 pci_cmd;
 366         int err;
 367
 368         bus = kzalloc(sizeof(*bus) + sizeof(*pci_bus), GFP_KERNEL);
 369         if (!bus) {
 370                 dev_printk(KERN_ERR, &pdev->dev,
 371                            "Couldn't allocate iwl_pci_bus");
 372                 err = -ENOMEM;
 373                 goto out_no_pci;
 374         }
 375
 376         pci_bus = IWL_BUS_GET_PCI_BUS(bus);
 377         pci_bus->pci_dev = pdev;
 378
 379         pci_set_drvdata(pdev, bus);
 380
 381         /* W/A - seems to solve weird behavior. We need to remove this if we
 382          * don't want to stay in L1 all the time. This wastes a lot of power */
 383         pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
 384                                 PCIE_LINK_STATE_CLKPM);
 385
 386         if (pci_enable_device(pdev)) {
 387                 err = -ENODEV;
 388                 goto out_no_pci;
 389         }
 390
 391         pci_set_master(pdev);
 392
 393         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
 394         if (!err)
 395                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
 396         if (err) {
 397                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 398                 if (!err)
 399                         err = pci_set_consistent_dma_mask(pdev,
 400                                                         DMA_BIT_MASK(32));
 401                 /* both attempts failed: */
 402                 if (err) {
 403                         dev_printk(KERN_ERR, bus->dev,
 404                                    "No suitable DMA available.\n");
 405                         goto out_pci_disable_device;
 406                 }
 407         }
 408
 409         err = pci_request_regions(pdev, DRV_NAME);
 410         if (err) {
 411                 dev_printk(KERN_ERR, bus->dev, "pci_request_regions failed");
 412                 goto out_pci_disable_device;
 413         }
 414
 415         pci_bus->hw_base = pci_iomap(pdev, 0, 0);
 416         if (!pci_bus->hw_base) {
 417                 dev_printk(KERN_ERR, bus->dev, "pci_iomap failed");
 418                 err = -ENODEV;
 419                 goto out_pci_release_regions;
 420         }
 421
 422         dev_printk(KERN_INFO, &pdev->dev,
 423                 "pci_resource_len = 0x%08llx\n",
 424                 (unsigned long long) pci_resource_len(pdev, 0));
 425         dev_printk(KERN_INFO, &pdev->dev,
 426                 "pci_resource_base = %p\n", pci_bus->hw_base);
 427
 428         dev_printk(KERN_INFO, &pdev->dev,
 429                 "HW Revision ID = 0x%X\n", pdev->revision);
 430
 431         /* We disable the RETRY_TIMEOUT register (0x41) to keep
 432          * PCI Tx retries from interfering with C3 CPU state */
 433         pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
 434
 435         err = pci_enable_msi(pdev);
 436         if (err)
 437                 dev_printk(KERN_ERR, &pdev->dev,
 438                         "pci_enable_msi failed(0X%x)", err);
 439
 440         /* TODO: Move this away, not needed if not MSI */
 441         /* enable rfkill interrupt: hw bug w/a */
 442         pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
 443         if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
 444                 pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
 445                 pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
 446         }
 447
 448         bus->dev = &pdev->dev;
 449         bus->irq = pdev->irq;
 450         bus->ops = &bus_ops_pci;
 451
 452         err = iwl_probe(bus, &trans_ops_pcie, cfg);
 453         if (err)
 454                 goto out_disable_msi;
 455         return 0;
 456
 457 out_disable_msi:
 458         pci_disable_msi(pdev);
 459         pci_iounmap(pdev, pci_bus->hw_base);
 460 out_pci_release_regions:
 461         pci_set_drvdata(pdev, NULL);
 462         pci_release_regions(pdev);
 463 out_pci_disable_device:
 464         pci_disable_device(pdev);
 465 out_no_pci:
 466         kfree(bus);
 467         return err;
 468 }
 469
 470 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 471 {
 472         struct iwl_bus *bus = pci_get_drvdata(pdev);
 473         struct iwl_pci_bus *pci_bus = IWL_BUS_GET_PCI_BUS(bus);
 474         struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);
 475         struct iwl_shared *shrd = bus->shrd;
 476
 477         iwl_remove(shrd->priv);
 478
 479         pci_disable_msi(pci_dev);
 480         pci_iounmap(pci_dev, pci_bus->hw_base);
 481         pci_release_regions(pci_dev);
 482         pci_disable_device(pci_dev);
 483         pci_set_drvdata(pci_dev, NULL);
 484
 485         kfree(bus);
 486 }
 487
 488 #ifdef CONFIG_PM_SLEEP
 489
 490 static int iwl_pci_suspend(struct device *device)
 491 {
 492         struct pci_dev *pdev = to_pci_dev(device);
 493         struct iwl_bus *bus = pci_get_drvdata(pdev);
 494         struct iwl_shared *shrd = bus->shrd;
 495
 496         /* Before you put code here, think about WoWLAN. You cannot check here
 497          * whether WoWLAN is enabled or not, and your code will run even if
 498          * WoWLAN is enabled - don't kill the NIC, someone may need it in Sx.
 499          */
 500
 501         return iwl_trans_suspend(shrd->trans);
 502 }
 503
 504 static int iwl_pci_resume(struct device *device)
 505 {
 506         struct pci_dev *pdev = to_pci_dev(device);
 507         struct iwl_bus *bus = pci_get_drvdata(pdev);
 508         struct iwl_shared *shrd = bus->shrd;
 509
 510         /* Before you put code here, think about WoWLAN. You cannot check here
 511          * whether WoWLAN is enabled or not, and your code will run even if
 512          * WoWLAN is enabled - the NIC may be alive.
 513          */
 514
 515         /*
 516          * We disable the RETRY_TIMEOUT register (0x41) to keep
 517          * PCI Tx retries from interfering with C3 CPU state.
 518          */
 519         pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
 520
 521         return iwl_trans_resume(shrd->trans);
 522 }
 523
 524 static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume);
 525
 526 #define IWL_PM_OPS      (&iwl_dev_pm_ops)
 527
 528 #else
 529
 530 #define IWL_PM_OPS      NULL
 531
 532 #endif
 533
 534 static struct pci_driver iwl_pci_driver = {
 535         .name = DRV_NAME,
 536         .id_table = iwl_hw_card_ids,
 537         .probe = iwl_pci_probe,
 538         .remove = __devexit_p(iwl_pci_remove),
 539         .driver.pm = IWL_PM_OPS,
 540 };
 541
 542 int __must_check iwl_pci_register_driver(void)
 543 {
 544         int ret;
 545         ret = pci_register_driver(&iwl_pci_driver);
 546         if (ret)
 547                 pr_err("Unable to initialize PCI module\n");
 548
 549         return ret;
 550 }
 551
 552 void iwl_pci_unregister_driver(void)
 553 {
 554         pci_unregister_driver(&iwl_pci_driver);
 555 }