drivers/net/wireless/iwlwifi/iwl-pci.c - kernel/msm-4.9 - Gitiles

 /******************************************************************************
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
  *
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
  * published by the Free Software Foundation.
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  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
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  * You should have received a copy of the GNU General Public License
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  * USA
  *
  * The full GNU General Public License is included in this distribution
  * in the file called LICENSE.GPL.
  *
  * Contact Information:
  *  Intel Linux Wireless <ilw@linux.intel.com>
  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  *
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  * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
  * All rights reserved.
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  *    from this software without specific prior written permission.
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  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  *****************************************************************************/
 #include <linux/pci.h>
 #include <linux/pci-aspm.h>

 #include "iwl-bus.h"
 #include "iwl-agn.h"
 #include "iwl-core.h"
 #include "iwl-io.h"

 /* PCI registers */
 #define PCI_CFG_RETRY_TIMEOUT	0x041
 #define PCI_CFG_LINK_CTRL_VAL_L0S_EN	0x01
 #define PCI_CFG_LINK_CTRL_VAL_L1_EN	0x02

 struct iwl_pci_bus {
 	/* basic pci-network driver stuff */
 	struct pci_dev *pci_dev;

 	/* pci hardware address support */
 	void __iomem *hw_base;
 };

 #define IWL_BUS_GET_PCI_BUS(_iwl_bus) \
 			((struct iwl_pci_bus *) ((_iwl_bus)->bus_specific))

 #define IWL_BUS_GET_PCI_DEV(_iwl_bus) \
 			((IWL_BUS_GET_PCI_BUS(_iwl_bus))->pci_dev)

 static u16 iwl_pciexp_link_ctrl(struct iwl_bus *bus)
 {
 	int pos;
 	u16 pci_lnk_ctl;
 	struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);

 	pos = pci_pcie_cap(pci_dev);
 	pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 	return pci_lnk_ctl;
 }

 static bool iwl_pci_is_pm_supported(struct iwl_bus *bus)
 {
 	u16 lctl = iwl_pciexp_link_ctrl(bus);

 	return !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
 }

 static void iwl_pci_apm_config(struct iwl_bus *bus)
 {
 	/*
 	 * HW bug W/A for instability in PCIe bus L0S->L1 transition.
 	 * Check if BIOS (or OS) enabled L1-ASPM on this device.
 	 * If so (likely), disable L0S, so device moves directly L0->L1;
 	 *    costs negligible amount of power savings.
 	 * If not (unlikely), enable L0S, so there is at least some
 	 *    power savings, even without L1.
 	 */
 	u16 lctl = iwl_pciexp_link_ctrl(bus);

 	if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
 				PCI_CFG_LINK_CTRL_VAL_L1_EN) {
 		/* L1-ASPM enabled; disable(!) L0S */
 		iwl_set_bit(bus->drv_data, CSR_GIO_REG,
 				CSR_GIO_REG_VAL_L0S_ENABLED);
 		dev_printk(KERN_INFO, bus->dev, "L1 Enabled; Disabling L0S\n");
 	} else {
 		/* L1-ASPM disabled; enable(!) L0S */
 		iwl_clear_bit(bus->drv_data, CSR_GIO_REG,
 				CSR_GIO_REG_VAL_L0S_ENABLED);
 		dev_printk(KERN_INFO, bus->dev, "L1 Disabled; Enabling L0S\n");
 	}
 }

 static void iwl_pci_set_drv_data(struct iwl_bus *bus, void *drv_data)
 {
 	bus->drv_data = drv_data;
 	pci_set_drvdata(IWL_BUS_GET_PCI_DEV(bus), drv_data);
 }

 static void iwl_pci_get_hw_id(struct iwl_bus *bus, char buf[],
 			      int buf_len)
 {
 	struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);

 	snprintf(buf, buf_len, "PCI ID: 0x%04X:0x%04X", pci_dev->device,
 		 pci_dev->subsystem_device);
 }

 static void iwl_pci_write8(struct iwl_bus *bus, u32 ofs, u8 val)
 {
 	iowrite8(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
 }

 static void iwl_pci_write32(struct iwl_bus *bus, u32 ofs, u32 val)
 {
 	iowrite32(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
 }

 static u32 iwl_pci_read32(struct iwl_bus *bus, u32 ofs)
 {
 	u32 val = ioread32(IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
 	return val;
 }

 static struct iwl_bus_ops pci_ops = {
 	.get_pm_support = iwl_pci_is_pm_supported,
 	.apm_config = iwl_pci_apm_config,
 	.set_drv_data = iwl_pci_set_drv_data,
 	.get_hw_id = iwl_pci_get_hw_id,
 	.write8 = iwl_pci_write8,
 	.write32 = iwl_pci_write32,
 	.read32 = iwl_pci_read32,
 };

 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
 	.vendor = PCI_VENDOR_ID_INTEL,  .device = (dev), \
 	.subvendor = PCI_ANY_ID, .subdevice = (subdev), \
 	.driver_data = (kernel_ulong_t)&(cfg)

 /* Hardware specific file defines the PCI IDs table for that hardware module */
 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 	{IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */

 /* 5300 Series WiFi */
 	{IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */

 /* 5350 Series WiFi/WiMax */
 	{IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */

 /* 5150 Series Wifi/WiMax */
 	{IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */

 	{IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */

 /* 6x00 Series */
 	{IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},

 /* 6x05 Series */
 	{IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)},

 /* 6x30 Series */
 	{IWL_PCI_DEVICE(0x008A, 0x5305, iwl1030_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x008A, 0x5307, iwl1030_bg_cfg)},
 	{IWL_PCI_DEVICE(0x008A, 0x5325, iwl1030_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x008A, 0x5327, iwl1030_bg_cfg)},
 	{IWL_PCI_DEVICE(0x008B, 0x5315, iwl1030_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x008B, 0x5317, iwl1030_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0090, 0x5211, iwl6030_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0090, 0x5215, iwl6030_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0090, 0x5216, iwl6030_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x0091, 0x5201, iwl6030_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0091, 0x5205, iwl6030_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0091, 0x5206, iwl6030_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x0091, 0x5207, iwl6030_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x0091, 0x5221, iwl6030_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0091, 0x5225, iwl6030_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0091, 0x5226, iwl6030_2abg_cfg)},

 /* 6x50 WiFi/WiMax Series */
 	{IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)},

 /* 6150 WiFi/WiMax Series */
 	{IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0885, 0x1307, iwl6150_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0885, 0x1327, iwl6150_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0886, 0x1317, iwl6150_bg_cfg)},

 /* 1000 Series WiFi */
 	{IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)},

 /* 100 Series WiFi */
 	{IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg)},
 	{IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x08AF, 0x1017, iwl100_bg_cfg)},
 	{IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x08AE, 0x1027, iwl100_bg_cfg)},

 /* 130 Series WiFi */
 	{IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg)},

 /* 2x00 Series */
 	{IWL_PCI_DEVICE(0x0890, 0x4022, iwl2000_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0891, 0x4222, iwl2000_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0890, 0x4422, iwl2000_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0890, 0x4026, iwl2000_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x0891, 0x4226, iwl2000_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x0890, 0x4426, iwl2000_2bg_cfg)},

 /* 2x30 Series */
 	{IWL_PCI_DEVICE(0x0887, 0x4062, iwl2030_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0888, 0x4262, iwl2030_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0887, 0x4462, iwl2030_2bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0887, 0x4066, iwl2030_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x0888, 0x4266, iwl2030_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x0887, 0x4466, iwl2030_2bg_cfg)},

 /* 6x35 Series */
 	{IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x088E, 0x4064, iwl6035_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x088F, 0x4264, iwl6035_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x088E, 0x4464, iwl6035_2abg_cfg)},
 	{IWL_PCI_DEVICE(0x088E, 0x4066, iwl6035_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x088F, 0x4266, iwl6035_2bg_cfg)},
 	{IWL_PCI_DEVICE(0x088E, 0x4466, iwl6035_2bg_cfg)},

 /* 105 Series */
 	{IWL_PCI_DEVICE(0x0894, 0x0022, iwl105_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0895, 0x0222, iwl105_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0894, 0x0422, iwl105_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0894, 0x0026, iwl105_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0895, 0x0226, iwl105_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0894, 0x0426, iwl105_bg_cfg)},

 /* 135 Series */
 	{IWL_PCI_DEVICE(0x0892, 0x0062, iwl135_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0893, 0x0262, iwl135_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0892, 0x0462, iwl135_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0892, 0x0066, iwl135_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0893, 0x0266, iwl135_bg_cfg)},
 	{IWL_PCI_DEVICE(0x0892, 0x0466, iwl135_bg_cfg)},

 	{0}
 };
 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);

 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
 	struct iwl_bus *bus;
 	struct iwl_pci_bus *pci_bus;
 	u16 pci_cmd;
 	int err;

 	bus = kzalloc(sizeof(*bus) + sizeof(*pci_bus), GFP_KERNEL);
 	if (!bus) {
 		dev_printk(KERN_ERR, &pdev->dev,
 			   "Couldn't allocate iwl_pci_bus");
 		err = -ENOMEM;
 		goto out_no_pci;
 	}

 	pci_bus = IWL_BUS_GET_PCI_BUS(bus);
 	pci_bus->pci_dev = pdev;

 	/* W/A - seems to solve weird behavior. We need to remove this if we
 	 * don't want to stay in L1 all the time. This wastes a lot of power */
 	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
 				PCIE_LINK_STATE_CLKPM);

 	if (pci_enable_device(pdev)) {
 		err = -ENODEV;
 		goto out_no_pci;
 	}

 	pci_set_master(pdev);

 	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
 	if (!err)
 		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
 	if (err) {
 		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (!err)
 			err = pci_set_consistent_dma_mask(pdev,
 							DMA_BIT_MASK(32));
 		/* both attempts failed: */
 		if (err) {
 			dev_printk(KERN_ERR, bus->dev,
 				   "No suitable DMA available.\n");
 			goto out_pci_disable_device;
 		}
 	}

 	err = pci_request_regions(pdev, DRV_NAME);
 	if (err) {
 		dev_printk(KERN_ERR, bus->dev, "pci_request_regions failed");
 		goto out_pci_disable_device;
 	}

 	pci_bus->hw_base = pci_iomap(pdev, 0, 0);
 	if (!pci_bus->hw_base) {
 		dev_printk(KERN_ERR, bus->dev, "pci_iomap failed");
 		err = -ENODEV;
 		goto out_pci_release_regions;
 	}

 	dev_printk(KERN_INFO, &pdev->dev,
 		"pci_resource_len = 0x%08llx\n",
 		(unsigned long long) pci_resource_len(pdev, 0));
 	dev_printk(KERN_INFO, &pdev->dev,
 		"pci_resource_base = %p\n", pci_bus->hw_base);

 	dev_printk(KERN_INFO, &pdev->dev,
 		"HW Revision ID = 0x%X\n", pdev->revision);

 	/* We disable the RETRY_TIMEOUT register (0x41) to keep
 	 * PCI Tx retries from interfering with C3 CPU state */
 	pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);

 	err = pci_enable_msi(pdev);
 	if (err) {
 		dev_printk(KERN_ERR, &pdev->dev, "pci_enable_msi failed");
 		goto out_iounmap;
 	}

 	/* TODO: Move this away, not needed if not MSI */
 	/* enable rfkill interrupt: hw bug w/a */
 	pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
 	if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
 		pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
 		pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
 	}

 	bus->dev = &pdev->dev;
 	bus->irq = pdev->irq;
 	bus->ops = &pci_ops;

 	err = iwl_probe(bus, cfg);
 	if (err)
 		goto out_disable_msi;
 	return 0;

 out_disable_msi:
 	pci_disable_msi(pdev);
 out_iounmap:
 	pci_iounmap(pdev, pci_bus->hw_base);
 out_pci_release_regions:
 	pci_set_drvdata(pdev, NULL);
 	pci_release_regions(pdev);
 out_pci_disable_device:
 	pci_disable_device(pdev);
 out_no_pci:
 	kfree(bus);
 	return err;
 }

 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 {
 	struct iwl_priv *priv = pci_get_drvdata(pdev);
 	struct iwl_bus *bus = priv->bus;
 	struct iwl_pci_bus *pci_bus = IWL_BUS_GET_PCI_BUS(bus);
 	struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);

 	iwl_remove(priv);

 	pci_disable_msi(pci_dev);
 	pci_iounmap(pci_dev, pci_bus->hw_base);
 	pci_release_regions(pci_dev);
 	pci_disable_device(pci_dev);
 	pci_set_drvdata(pci_dev, NULL);

 	kfree(bus);
 }

 #ifdef CONFIG_PM

 static int iwl_pci_suspend(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
 	struct iwl_priv *priv = pci_get_drvdata(pdev);

 	/* Before you put code here, think about WoWLAN. You cannot check here
 	 * whether WoWLAN is enabled or not, and your code will run even if
 	 * WoWLAN is enabled - don't kill the NIC, someone may need it in Sx.
 	 */

 	return iwl_suspend(priv);
 }

 static int iwl_pci_resume(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
 	struct iwl_priv *priv = pci_get_drvdata(pdev);

 	/* Before you put code here, think about WoWLAN. You cannot check here
 	 * whether WoWLAN is enabled or not, and your code will run even if
 	 * WoWLAN is enabled - the NIC may be alive.
 	 */

 	/*
 	 * We disable the RETRY_TIMEOUT register (0x41) to keep
 	 * PCI Tx retries from interfering with C3 CPU state.
 	 */
 	pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);

 	return iwl_resume(priv);
 }

 static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume);

 #define IWL_PM_OPS	(&iwl_dev_pm_ops)

 #else

 #define IWL_PM_OPS	NULL

 #endif

 static struct pci_driver iwl_pci_driver = {
 	.name = DRV_NAME,
 	.id_table = iwl_hw_card_ids,
 	.probe = iwl_pci_probe,
 	.remove = __devexit_p(iwl_pci_remove),
 	.driver.pm = IWL_PM_OPS,
 };

 int __must_check iwl_pci_register_driver(void)
 {
 	int ret;
 	ret = pci_register_driver(&iwl_pci_driver);
 	if (ret)
 		pr_err("Unable to initialize PCI module\n");

 	return ret;
 }

 void iwl_pci_unregister_driver(void)
 {
 	pci_unregister_driver(&iwl_pci_driver);
 }
	/******************************************************************************
	*
	* This file is provided under a dual BSD/GPLv2 license. When using or
	* redistributing this file, you may do so under either license.
	*
	* GPL LICENSE SUMMARY
	*
	* Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of version 2 of the GNU General Public License as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
	* USA
	*
	* The full GNU General Public License is included in this distribution
	* in the file called LICENSE.GPL.
	*
	* Contact Information:
	* Intel Linux Wireless <ilw@linux.intel.com>
	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	*
	* BSD LICENSE
	*
	* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	* * Neither the name Intel Corporation nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*
	*****************************************************************************/
	#include <linux/pci.h>
	#include <linux/pci-aspm.h>

	#include "iwl-bus.h"
	#include "iwl-agn.h"
	#include "iwl-core.h"
	#include "iwl-io.h"

	/* PCI registers */
	#define PCI_CFG_RETRY_TIMEOUT 0x041
	#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
	#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02

	struct iwl_pci_bus {
	/* basic pci-network driver stuff */
	struct pci_dev *pci_dev;

	/* pci hardware address support */
	void __iomem *hw_base;
	};

	#define IWL_BUS_GET_PCI_BUS(_iwl_bus) \
	((struct iwl_pci_bus *) ((_iwl_bus)->bus_specific))

	#define IWL_BUS_GET_PCI_DEV(_iwl_bus) \
	((IWL_BUS_GET_PCI_BUS(_iwl_bus))->pci_dev)

	static u16 iwl_pciexp_link_ctrl(struct iwl_bus *bus)
	{
	int pos;
	u16 pci_lnk_ctl;
	struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);

	pos = pci_pcie_cap(pci_dev);
	pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
	return pci_lnk_ctl;
	}

	static bool iwl_pci_is_pm_supported(struct iwl_bus *bus)
	{
	u16 lctl = iwl_pciexp_link_ctrl(bus);

	return !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
	}

	static void iwl_pci_apm_config(struct iwl_bus *bus)
	{
	/*
	* HW bug W/A for instability in PCIe bus L0S->L1 transition.
	* Check if BIOS (or OS) enabled L1-ASPM on this device.
	* If so (likely), disable L0S, so device moves directly L0->L1;
	* costs negligible amount of power savings.
	* If not (unlikely), enable L0S, so there is at least some
	* power savings, even without L1.
	*/
	u16 lctl = iwl_pciexp_link_ctrl(bus);

	if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
	PCI_CFG_LINK_CTRL_VAL_L1_EN) {
	/* L1-ASPM enabled; disable(!) L0S */
	iwl_set_bit(bus->drv_data, CSR_GIO_REG,
	CSR_GIO_REG_VAL_L0S_ENABLED);
	dev_printk(KERN_INFO, bus->dev, "L1 Enabled; Disabling L0S\n");
	} else {
	/* L1-ASPM disabled; enable(!) L0S */
	iwl_clear_bit(bus->drv_data, CSR_GIO_REG,
	CSR_GIO_REG_VAL_L0S_ENABLED);
	dev_printk(KERN_INFO, bus->dev, "L1 Disabled; Enabling L0S\n");
	}
	}

	static void iwl_pci_set_drv_data(struct iwl_bus bus, void drv_data)
	{
	bus->drv_data = drv_data;
	pci_set_drvdata(IWL_BUS_GET_PCI_DEV(bus), drv_data);
	}

	static void iwl_pci_get_hw_id(struct iwl_bus *bus, char buf[],
	int buf_len)
	{
	struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);

	snprintf(buf, buf_len, "PCI ID: 0x%04X:0x%04X", pci_dev->device,
	pci_dev->subsystem_device);
	}

	static void iwl_pci_write8(struct iwl_bus *bus, u32 ofs, u8 val)
	{
	iowrite8(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
	}

	static void iwl_pci_write32(struct iwl_bus *bus, u32 ofs, u32 val)
	{
	iowrite32(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
	}

	static u32 iwl_pci_read32(struct iwl_bus *bus, u32 ofs)
	{
	u32 val = ioread32(IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
	return val;
	}

	static struct iwl_bus_ops pci_ops = {
	.get_pm_support = iwl_pci_is_pm_supported,
	.apm_config = iwl_pci_apm_config,
	.set_drv_data = iwl_pci_set_drv_data,
	.get_hw_id = iwl_pci_get_hw_id,
	.write8 = iwl_pci_write8,
	.write32 = iwl_pci_write32,
	.read32 = iwl_pci_read32,
	};

	#define IWL_PCI_DEVICE(dev, subdev, cfg) \
	.vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
	.subvendor = PCI_ANY_ID, .subdevice = (subdev), \
	.driver_data = (kernel_ulong_t)&(cfg)

	/* Hardware specific file defines the PCI IDs table for that hardware module */
	static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
	{IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */

	/* 5300 Series WiFi */
	{IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */

	/* 5350 Series WiFi/WiMax */
	{IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */

	/* 5150 Series Wifi/WiMax */
	{IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */

	{IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */

	/* 6x00 Series */
	{IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
	{IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
	{IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
	{IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
	{IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},

	/* 6x05 Series */
	{IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)},

	/* 6x30 Series */
	{IWL_PCI_DEVICE(0x008A, 0x5305, iwl1030_bgn_cfg)},
	{IWL_PCI_DEVICE(0x008A, 0x5307, iwl1030_bg_cfg)},
	{IWL_PCI_DEVICE(0x008A, 0x5325, iwl1030_bgn_cfg)},
	{IWL_PCI_DEVICE(0x008A, 0x5327, iwl1030_bg_cfg)},
	{IWL_PCI_DEVICE(0x008B, 0x5315, iwl1030_bgn_cfg)},
	{IWL_PCI_DEVICE(0x008B, 0x5317, iwl1030_bg_cfg)},
	{IWL_PCI_DEVICE(0x0090, 0x5211, iwl6030_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0090, 0x5215, iwl6030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0090, 0x5216, iwl6030_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5201, iwl6030_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5205, iwl6030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5206, iwl6030_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5207, iwl6030_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5221, iwl6030_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5225, iwl6030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5226, iwl6030_2abg_cfg)},

	/* 6x50 WiFi/WiMax Series */
	{IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)},

	/* 6150 WiFi/WiMax Series */
	{IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0885, 0x1307, iwl6150_bg_cfg)},
	{IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0885, 0x1327, iwl6150_bg_cfg)},
	{IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0886, 0x1317, iwl6150_bg_cfg)},

	/* 1000 Series WiFi */
	{IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)},

	/* 100 Series WiFi */
	{IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg)},
	{IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg)},
	{IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg)},
	{IWL_PCI_DEVICE(0x08AF, 0x1017, iwl100_bg_cfg)},
	{IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg)},
	{IWL_PCI_DEVICE(0x08AE, 0x1027, iwl100_bg_cfg)},

	/* 130 Series WiFi */
	{IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg)},
	{IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg)},
	{IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg)},

	/* 2x00 Series */
	{IWL_PCI_DEVICE(0x0890, 0x4022, iwl2000_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0891, 0x4222, iwl2000_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0890, 0x4422, iwl2000_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0890, 0x4026, iwl2000_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0891, 0x4226, iwl2000_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0890, 0x4426, iwl2000_2bg_cfg)},

	/* 2x30 Series */
	{IWL_PCI_DEVICE(0x0887, 0x4062, iwl2030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0888, 0x4262, iwl2030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0887, 0x4462, iwl2030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0887, 0x4066, iwl2030_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0888, 0x4266, iwl2030_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0887, 0x4466, iwl2030_2bg_cfg)},

	/* 6x35 Series */
	{IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)},
	{IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4064, iwl6035_2abg_cfg)},
	{IWL_PCI_DEVICE(0x088F, 0x4264, iwl6035_2abg_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4464, iwl6035_2abg_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4066, iwl6035_2bg_cfg)},
	{IWL_PCI_DEVICE(0x088F, 0x4266, iwl6035_2bg_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4466, iwl6035_2bg_cfg)},

	/* 105 Series */
	{IWL_PCI_DEVICE(0x0894, 0x0022, iwl105_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0895, 0x0222, iwl105_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0894, 0x0422, iwl105_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0894, 0x0026, iwl105_bg_cfg)},
	{IWL_PCI_DEVICE(0x0895, 0x0226, iwl105_bg_cfg)},
	{IWL_PCI_DEVICE(0x0894, 0x0426, iwl105_bg_cfg)},

	/* 135 Series */
	{IWL_PCI_DEVICE(0x0892, 0x0062, iwl135_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0893, 0x0262, iwl135_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0892, 0x0462, iwl135_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0892, 0x0066, iwl135_bg_cfg)},
	{IWL_PCI_DEVICE(0x0893, 0x0266, iwl135_bg_cfg)},
	{IWL_PCI_DEVICE(0x0892, 0x0466, iwl135_bg_cfg)},

	{0}
	};
	MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);

	static int iwl_pci_probe(struct pci_dev pdev, const struct pci_device_id ent)
	{
	struct iwl_cfg cfg = (struct iwl_cfg )(ent->driver_data);
	struct iwl_bus *bus;
	struct iwl_pci_bus *pci_bus;
	u16 pci_cmd;
	int err;

	bus = kzalloc(sizeof(bus) + sizeof(pci_bus), GFP_KERNEL);
	if (!bus) {
	dev_printk(KERN_ERR, &pdev->dev,
	"Couldn't allocate iwl_pci_bus");
	err = -ENOMEM;
	goto out_no_pci;
	}

	pci_bus = IWL_BUS_GET_PCI_BUS(bus);
	pci_bus->pci_dev = pdev;

	/* W/A - seems to solve weird behavior. We need to remove this if we
	* don't want to stay in L1 all the time. This wastes a lot of power */
	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S \| PCIE_LINK_STATE_L1 \|
	PCIE_LINK_STATE_CLKPM);

	if (pci_enable_device(pdev)) {
	err = -ENODEV;
	goto out_no_pci;
	}

	pci_set_master(pdev);

	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
	if (!err)
	err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
	if (err) {
	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
	if (!err)
	err = pci_set_consistent_dma_mask(pdev,
	DMA_BIT_MASK(32));
	/* both attempts failed: */
	if (err) {
	dev_printk(KERN_ERR, bus->dev,
	"No suitable DMA available.\n");
	goto out_pci_disable_device;
	}
	}

	err = pci_request_regions(pdev, DRV_NAME);
	if (err) {
	dev_printk(KERN_ERR, bus->dev, "pci_request_regions failed");
	goto out_pci_disable_device;
	}

	pci_bus->hw_base = pci_iomap(pdev, 0, 0);
	if (!pci_bus->hw_base) {
	dev_printk(KERN_ERR, bus->dev, "pci_iomap failed");
	err = -ENODEV;
	goto out_pci_release_regions;
	}

	dev_printk(KERN_INFO, &pdev->dev,
	"pci_resource_len = 0x%08llx\n",
	(unsigned long long) pci_resource_len(pdev, 0));
	dev_printk(KERN_INFO, &pdev->dev,
	"pci_resource_base = %p\n", pci_bus->hw_base);

	dev_printk(KERN_INFO, &pdev->dev,
	"HW Revision ID = 0x%X\n", pdev->revision);

	/* We disable the RETRY_TIMEOUT register (0x41) to keep
	* PCI Tx retries from interfering with C3 CPU state */
	pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);

	err = pci_enable_msi(pdev);
	if (err) {
	dev_printk(KERN_ERR, &pdev->dev, "pci_enable_msi failed");
	goto out_iounmap;
	}

	/* TODO: Move this away, not needed if not MSI */
	/* enable rfkill interrupt: hw bug w/a */
	pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
	if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
	pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
	pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
	}

	bus->dev = &pdev->dev;
	bus->irq = pdev->irq;
	bus->ops = &pci_ops;

	err = iwl_probe(bus, cfg);
	if (err)
	goto out_disable_msi;
	return 0;

	out_disable_msi:
	pci_disable_msi(pdev);
	out_iounmap:
	pci_iounmap(pdev, pci_bus->hw_base);
	out_pci_release_regions:
	pci_set_drvdata(pdev, NULL);
	pci_release_regions(pdev);
	out_pci_disable_device:
	pci_disable_device(pdev);
	out_no_pci:
	kfree(bus);
	return err;
	}

	static void __devexit iwl_pci_remove(struct pci_dev *pdev)
	{
	struct iwl_priv *priv = pci_get_drvdata(pdev);
	struct iwl_bus *bus = priv->bus;
	struct iwl_pci_bus *pci_bus = IWL_BUS_GET_PCI_BUS(bus);
	struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);

	iwl_remove(priv);

	pci_disable_msi(pci_dev);
	pci_iounmap(pci_dev, pci_bus->hw_base);
	pci_release_regions(pci_dev);
	pci_disable_device(pci_dev);
	pci_set_drvdata(pci_dev, NULL);

	kfree(bus);
	}

	#ifdef CONFIG_PM

	static int iwl_pci_suspend(struct device *device)
	{
	struct pci_dev *pdev = to_pci_dev(device);
	struct iwl_priv *priv = pci_get_drvdata(pdev);

	/* Before you put code here, think about WoWLAN. You cannot check here
	* whether WoWLAN is enabled or not, and your code will run even if
	* WoWLAN is enabled - don't kill the NIC, someone may need it in Sx.
	*/

	return iwl_suspend(priv);
	}

	static int iwl_pci_resume(struct device *device)
	{
	struct pci_dev *pdev = to_pci_dev(device);
	struct iwl_priv *priv = pci_get_drvdata(pdev);

	/* Before you put code here, think about WoWLAN. You cannot check here
	* whether WoWLAN is enabled or not, and your code will run even if
	* WoWLAN is enabled - the NIC may be alive.
	*/

	/*
	* We disable the RETRY_TIMEOUT register (0x41) to keep
	* PCI Tx retries from interfering with C3 CPU state.
	*/
	pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);

	return iwl_resume(priv);
	}

	static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume);

	#define IWL_PM_OPS (&iwl_dev_pm_ops)

	#else

	#define IWL_PM_OPS NULL

	#endif

	static struct pci_driver iwl_pci_driver = {
	.name = DRV_NAME,
	.id_table = iwl_hw_card_ids,
	.probe = iwl_pci_probe,
	.remove = __devexit_p(iwl_pci_remove),
	.driver.pm = IWL_PM_OPS,
	};

	int __must_check iwl_pci_register_driver(void)
	{
	int ret;
	ret = pci_register_driver(&iwl_pci_driver);
	if (ret)
	pr_err("Unable to initialize PCI module\n");

	return ret;
	}

	void iwl_pci_unregister_driver(void)
	{
	pci_unregister_driver(&iwl_pci_driver);
	}