iwlagn: add a iwl_pci.[ch] files that will contain all PCI specific code

Move some PCI functionality to the new iwl_pci.[ch] files:
* the PCI_DEVICE_TABLE
* the pci_driver struct definition
* the PCI probe / remove functions
* the PCI suspend / resume functions

All these functions are now split: the trigger comes from the PCI layer which
calls to the bus generic code located in the other files.

This is the beginning only. There are still a lot of PCI related code needs
to be gathered.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/Makefile

@@ -13,6 +13,7 @@ iwlagn-objs             += iwl-5000.o
 iwlagn-objs             += iwl-6000.o
 iwlagn-objs             += iwl-1000.o
 iwlagn-objs             += iwl-2000.o
+iwlagn-objs             += iwl-pci.o
 
 iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
 iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o

drivers/net/wireless/iwlwifi/iwl-agn.h

@@ -379,4 +379,7 @@ void iwl_testmode_cleanup(struct iwl_priv *priv)
 }
 #endif
 
+int iwl_probe(struct pci_dev *pdev, struct iwl_cfg *cfg);
+void iwl_remove(struct pci_dev *pdev);
+
 #endif /* __iwl_agn_h__ */

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

@@ -1948,11 +1948,8 @@ __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 
 #ifdef CONFIG_PM
 
-int iwl_pci_suspend(struct device *device)
+int iwl_suspend(struct iwl_priv *priv)
 {
-	struct pci_dev *pdev = to_pci_dev(device);
-	struct iwl_priv *priv = pci_get_drvdata(pdev);
-
 	/*
 	 * This function is called when system goes into suspend state
 	 * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
@@ -1965,18 +1962,10 @@ int iwl_pci_suspend(struct device *device)
 	return 0;
 }
 
-int iwl_pci_resume(struct device *device)
+int iwl_resume(struct iwl_priv *priv)
 {
-	struct pci_dev *pdev = to_pci_dev(device);
-	struct iwl_priv *priv = pci_get_drvdata(pdev);
 	bool hw_rfkill = false;
 
-	/*
-	 * 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);
-
 	iwl_enable_interrupts(priv);
 
 	if (!(iwl_read32(priv, CSR_GP_CNTRL) &
@@ -1993,13 +1982,4 @@ int iwl_pci_resume(struct device *device)
 	return 0;
 }
 
-const struct dev_pm_ops iwl_pm_ops = {
-	.suspend = iwl_pci_suspend,
-	.resume = iwl_pci_resume,
-	.freeze = iwl_pci_suspend,
-	.thaw = iwl_pci_resume,
-	.poweroff = iwl_pci_suspend,
-	.restore = iwl_pci_resume,
-};
-
 #endif /* CONFIG_PM */

drivers/net/wireless/iwlwifi/iwl-core.h

@@ -76,11 +76,6 @@ struct iwl_cmd;
 #define DRV_COPYRIGHT	"Copyright(c) 2003-2011 Intel Corporation"
 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
 
-#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)
-
 #define TIME_UNIT		1024
 
 #define IWL_CMD(x) case x: return #x
@@ -495,16 +490,8 @@ __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 			   u32 addon, u32 beacon_interval);
 
 #ifdef CONFIG_PM
-int iwl_pci_suspend(struct device *device);
-int iwl_pci_resume(struct device *device);
-extern const struct dev_pm_ops iwl_pm_ops;
-
-#define IWL_PM_OPS	(&iwl_pm_ops)
-
-#else /* !CONFIG_PM */
-
-#define IWL_PM_OPS	NULL
-
+int iwl_suspend(struct iwl_priv *priv);
+int iwl_resume(struct iwl_priv *priv);
 #endif /* !CONFIG_PM */
 
 /*****************************************************

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -48,6 +48,8 @@
 #include "iwl-agn-rs.h"
 #include "iwl-agn-tt.h"
 
+#define DRV_NAME        "iwlagn"
+
 struct iwl_tx_queue;
 
 /* CT-KILL constants */

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

+/******************************************************************************
+ *
+ * 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.
+ *
+ *****************************************************************************/
+#ifndef __iwl_pci_h__
+#define __iwl_pci_h__
+
+int __must_check iwl_pci_register_driver(void);
+void iwl_pci_unregister_driver(void);
+
+#endif