drivers/net/wireless/iwlwifi/iwl-pci.c - maze/linux - Git at Google

 /******************************************************************************
  *
  * 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 - 2012 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 - 2012 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/module.h>
 #include <linux/pci.h>
 #include <linux/pci-aspm.h>

 #include "iwl-io.h"
 #include "iwl-shared.h"
 #include "iwl-trans.h"
 #include "iwl-csr.h"
 #include "iwl-cfg.h"
 #include "iwl-drv.h"
 #include "iwl-trans.h"

 #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)},
 	{IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg)},
 	{IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg)},
 	{IWL_PCI_DEVICE(0x0082, 0x4820, iwl6005_2agn_d_cfg)},
 	{IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_mow1_cfg)},/* low 5GHz active */
 	{IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_mow2_cfg)},/* high 5GHz active */

 /* 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, 0x4822, iwl2000_2bgn_d_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)},

 /* 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, 0x4860, iwl6035_2agn_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, 0x0822, iwl105_bgn_d_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)},

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

 /* PCI registers */
 #define PCI_CFG_RETRY_TIMEOUT	0x041

 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_shared *shrd;
 	struct iwl_trans *iwl_trans;
 	int err;

 	shrd = kzalloc(sizeof(*iwl_trans->shrd), GFP_KERNEL);
 	if (!shrd) {
 		dev_printk(KERN_ERR, &pdev->dev,
 			   "Couldn't allocate iwl_shared");
 		err = -ENOMEM;
 		goto out_free_bus;
 	}

 #ifdef CONFIG_IWLWIFI_IDI
 	iwl_trans = iwl_trans_idi_alloc(shrd, pdev, ent);
 	if (iwl_trans == NULL) {
 		err = -ENOMEM;
 		goto out_free_bus;
 	}

 	shrd->trans = iwl_trans;
 	pci_set_drvdata(pdev, iwl_trans);

 	err = iwl_drv_start(shrd, iwl_trans, cfg);
 #else
 	iwl_trans = iwl_trans_pcie_alloc(shrd, pdev, ent);
 	if (iwl_trans == NULL) {
 		err = -ENOMEM;
 		goto out_free_bus;
 	}

 	shrd->trans = iwl_trans;
 	pci_set_drvdata(pdev, iwl_trans);

 	err = iwl_drv_start(shrd, iwl_trans, cfg);
 #endif
 	if (err)
 		goto out_free_trans;

 	return 0;

 out_free_trans:
 	iwl_trans_free(iwl_trans);
 	pci_set_drvdata(pdev, NULL);
 out_free_bus:
 	kfree(shrd);
 	return err;
 }

 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 {
 	struct iwl_trans *iwl_trans = pci_get_drvdata(pdev);
 	struct iwl_shared *shrd = iwl_trans->shrd;

 	iwl_drv_stop(shrd);
 	iwl_trans_free(shrd->trans);

 	pci_set_drvdata(pdev, NULL);

 	kfree(shrd);
 }

 #ifdef CONFIG_PM_SLEEP

 static int iwl_pci_suspend(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
 	struct iwl_trans *iwl_trans = 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_trans_suspend(iwl_trans);
 }

 static int iwl_pci_resume(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
 	struct iwl_trans *iwl_trans = 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_trans_resume(iwl_trans);
 }

 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 - 2012 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 - 2012 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/module.h>
	#include <linux/pci.h>
	#include <linux/pci-aspm.h>

	#include "iwl-io.h"
	#include "iwl-shared.h"
	#include "iwl-trans.h"
	#include "iwl-csr.h"
	#include "iwl-cfg.h"
	#include "iwl-drv.h"
	#include "iwl-trans.h"

	#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)},
	{IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg)},
	{IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x4820, iwl6005_2agn_d_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_mow1_cfg)},/* low 5GHz active */
	{IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_mow2_cfg)},/* high 5GHz active */

	/* 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, 0x4822, iwl2000_2bgn_d_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)},

	/* 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, 0x4860, iwl6035_2agn_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, 0x0822, iwl105_bgn_d_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)},

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

	/* PCI registers */
	#define PCI_CFG_RETRY_TIMEOUT 0x041

	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_shared *shrd;
	struct iwl_trans *iwl_trans;
	int err;

	shrd = kzalloc(sizeof(*iwl_trans->shrd), GFP_KERNEL);
	if (!shrd) {
	dev_printk(KERN_ERR, &pdev->dev,
	"Couldn't allocate iwl_shared");
	err = -ENOMEM;
	goto out_free_bus;
	}

	#ifdef CONFIG_IWLWIFI_IDI
	iwl_trans = iwl_trans_idi_alloc(shrd, pdev, ent);
	if (iwl_trans == NULL) {
	err = -ENOMEM;
	goto out_free_bus;
	}

	shrd->trans = iwl_trans;
	pci_set_drvdata(pdev, iwl_trans);

	err = iwl_drv_start(shrd, iwl_trans, cfg);
	#else
	iwl_trans = iwl_trans_pcie_alloc(shrd, pdev, ent);
	if (iwl_trans == NULL) {
	err = -ENOMEM;
	goto out_free_bus;
	}

	shrd->trans = iwl_trans;
	pci_set_drvdata(pdev, iwl_trans);

	err = iwl_drv_start(shrd, iwl_trans, cfg);
	#endif
	if (err)
	goto out_free_trans;

	return 0;

	out_free_trans:
	iwl_trans_free(iwl_trans);
	pci_set_drvdata(pdev, NULL);
	out_free_bus:
	kfree(shrd);
	return err;
	}

	static void __devexit iwl_pci_remove(struct pci_dev *pdev)
	{
	struct iwl_trans *iwl_trans = pci_get_drvdata(pdev);
	struct iwl_shared *shrd = iwl_trans->shrd;

	iwl_drv_stop(shrd);
	iwl_trans_free(shrd->trans);

	pci_set_drvdata(pdev, NULL);

	kfree(shrd);
	}

	#ifdef CONFIG_PM_SLEEP

	static int iwl_pci_suspend(struct device *device)
	{
	struct pci_dev *pdev = to_pci_dev(device);
	struct iwl_trans *iwl_trans = 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_trans_suspend(iwl_trans);
	}

	static int iwl_pci_resume(struct device *device)
	{
	struct pci_dev *pdev = to_pci_dev(device);
	struct iwl_trans *iwl_trans = 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_trans_resume(iwl_trans);
	}

	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);
	}