[IWLWIFI]: add iwlwifi wireless drivers

This patch adds the mac80211 based wireless drivers for the Intel
PRO/Wireless 3945ABG/BG Network Connection and Intel Wireless WiFi
Link AGN (4965) adapters.

[ Move driver into it's own directory -DaveM ]

Signed-off-by: Zhu Yi <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

MAINTAINERS

@@ -2080,6 +2080,15 @@ L:	http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel
 W:	http://ipw2200.sourceforge.net
 S:	Supported
 
+INTEL WIRELESS WIFI LINK (iwlwifi)
+P:	Zhu Yi
+M:	[email protected]
+L:	[email protected]
+L:	[email protected]
+W:	http://intellinuxwireless.org
+T:	git git://intellinuxwireless.org/repos/iwlwifi
+S:	Supported
+
 IOC3 ETHERNET DRIVER
 P:	Ralf Baechle
 M:	[email protected]

drivers/net/wireless/Kconfig

@@ -577,6 +577,7 @@ config ADM8211
 
 	  Thanks to Infineon-ADMtek for their support of this driver.
 
+source "drivers/net/wireless/iwlwifi/Kconfig"
 source "drivers/net/wireless/hostap/Kconfig"
 source "drivers/net/wireless/bcm43xx/Kconfig"
 source "drivers/net/wireless/b43/Kconfig"

drivers/net/wireless/Makefile

@@ -51,3 +51,5 @@ rtl8187-objs		:= rtl8187_dev.o rtl8187_rtl8225.o
 obj-$(CONFIG_RTL8187)	+= rtl8187.o
 
 obj-$(CONFIG_ADM8211)	+= adm8211.o
+
+obj-$(CONFIG_IWLWIFI)	+= iwlwifi/

drivers/net/wireless/iwlwifi/Kconfig

@@ -0,0 +1,128 @@
+config IWLWIFI
+	bool "Intel Wireless WiFi Link Drivers"
+	depends on PCI && MAC80211 && WLAN_80211 && EXPERIMENTAL
+	select FW_LOADER
+	default n
+	---help---
+	  Select to enable drivers based on the iwlwifi project.  This
+	  project provides a common foundation for Intel's wireless
+	  drivers designed to use the mac80211 subsystem.
+
+	  See <file:Documentation/networking/README.iwlwifi> for
+	  information on the capabilities currently enabled in this
+	  driver and for tips for debugging issues and problems.
+
+config IWLWIFI_DEBUG
+	bool "Enable full debugging output in iwlwifi drivers"
+	depends on IWLWIFI
+	default y
+	---help---
+	  This option will enable debug tracing output for the iwlwifi
+	  drivers.
+
+	  This will result in the kernel module being ~100k larger.  You can
+	  control which debug output is sent to the kernel log by setting the
+	  value in
+
+	          /sys/bus/pci/drivers/${DRIVER}/debug_level
+
+	  This entry will only exist if this option is enabled.
+
+	  To set a value, simply echo an 8-byte hex value to the same file:
+
+		  % echo 0x43fff > /sys/bus/pci/drivers/${DRIVER}/debug_level
+
+	  You can find the list of debug mask values in:
+		  drivers/net/wireless/mac80211/iwlwifi/iwl-debug.h
+
+	  If this is your first time using this driver, you should say Y here
+	  as the debug information can assist others in helping you resolve
+	  any problems you may encounter.
+
+config IWLWIFI_SENSITIVITY
+	bool "Enable Sensitivity Calibration in iwlwifi drivers"
+	depends on IWLWIFI
+	default y
+	---help---
+	  This option will enable sensitivity calibration for the iwlwifi
+	  drivers.
+
+config IWLWIFI_SPECTRUM_MEASUREMENT
+	bool "Enable Spectrum Measurement in iwlwifi drivers"
+	depends on IWLWIFI
+	default y
+	---help---
+	  This option will enable spectrum measurement for the iwlwifi drivers.
+
+config IWLWIFI_QOS
+	bool "Enable Wireless QoS in iwlwifi drivers"
+	depends on IWLWIFI
+	default y
+	---help---
+	  This option will enable wireless quality of service (QoS) for the
+	  iwlwifi drivers.
+
+config IWLWIFI_HT
+	bool "Enable 802.11n HT features in iwlwifi drivers"
+	depends on EXPERIMENTAL
+	depends on IWLWIFI && MAC80211_HT
+	default n
+	---help---
+	  This option enables IEEE 802.11n High Throughput features
+	  for the iwlwifi drivers.
+
+config IWL4965
+	tristate "Intel Wireless WiFi 4965AGN"
+	depends on m && IWLWIFI && EXPERIMENTAL
+	default m
+	---help---
+	  Select to build the driver supporting the:
+
+	  Intel Wireless WiFi Link 4965AGN
+
+	  This driver uses the kernel's mac80211 subsystem.
+
+	  See <file:Documentation/networking/README.iwlwifi> for
+	  information on the capabilities currently enabled in this
+	  driver and for tips for debugging any issues or problems.
+
+	  In order to use this driver, you will need a microcode (uCode)
+	  image for it. You can obtain the microcode from:
+
+	          <http://intellinuxwireless.org/>.
+
+	  See the above referenced README.iwlwifi for information on where
+	  to install the microcode images.
+
+	  If you want to compile the driver as a module ( = code which can be
+	  inserted in and remvoed from the running kernel whenever you want),
+	  say M here and read <file:Documentation/modules.txt>.  The module
+	  will be called iwl4965.ko.
+
+config IWL3945
+	tristate "Intel PRO/Wireless 3945ABG/BG Network Connection"
+	depends on m && IWLWIFI && EXPERIMENTAL
+	default m
+	---help---
+	  Select to build the driver supporting the:
+
+	  Intel PRO/Wireless 3945ABG/BG Network Connection
+
+	  This driver uses the kernel's mac80211 subsystem.
+
+	  See <file:Documentation/networking/README.iwlwifi> for
+	  information on the capabilities currently enabled in this
+	  driver and for tips for debugging any issues or problems.
+
+	  In order to use this driver, you will need a microcode (uCode)
+	  image for it. You can obtain the microcode from:
+
+	          <http://intellinuxwireless.org/>.
+
+	  See the above referenced README.iwlwifi for information on where
+	  to install the microcode images.
+
+	  If you want to compile the driver as a module ( = code which can be
+	  inserted in and remvoed from the running kernel whenever you want),
+	  say M here and read <file:Documentation/modules.txt>.  The module
+	  will be called iwl3945.ko.

drivers/net/wireless/iwlwifi/Makefile

@@ -0,0 +1,11 @@
+obj-$(CONFIG_IWL3945)	+= iwl3945.o
+iwl3945-objs		= iwl3945-base.o iwl-3945.o iwl-3945-rs.o
+CFLAGS_iwl3945-base.o	= -DIWL=3945
+CFLAGS_iwl-3945.o	= -DIWL=3945
+CFLAGS_iwl-3945-rs.o	= -DIWL=3945
+
+obj-$(CONFIG_IWL4965)	+= iwl4965.o
+iwl4965-objs		= iwl4965-base.o iwl-4965.o iwl-4965-rs.o
+CFLAGS_iwl4965-base.o	= -DIWL=4965
+CFLAGS_iwl-4965.o	= -DIWL=4965
+CFLAGS_iwl-4965-rs.o	= -DIWL=4965

drivers/net/wireless/iwlwifi/iwl-3945-hw.h

@@ -0,0 +1,118 @@
+/******************************************************************************
+ *
+ * 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) 2005 - 2007 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 Geeral 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:
+ * James P. Ketrenos <[email protected]>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2007 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_3945_hw__
+#define __iwl_3945_hw__
+
+#define IWL_RX_BUF_SIZE 3000
+/* card static random access memory (SRAM) for processor data and instructs */
+#define ALM_RTC_INST_UPPER_BOUND		(0x014000)
+#define ALM_RTC_DATA_UPPER_BOUND		(0x808000)
+
+#define ALM_RTC_INST_SIZE (ALM_RTC_INST_UPPER_BOUND - RTC_INST_LOWER_BOUND)
+#define ALM_RTC_DATA_SIZE (ALM_RTC_DATA_UPPER_BOUND - RTC_DATA_LOWER_BOUND)
+
+#define IWL_MAX_BSM_SIZE ALM_RTC_INST_SIZE
+#define IWL_MAX_INST_SIZE ALM_RTC_INST_SIZE
+#define IWL_MAX_DATA_SIZE ALM_RTC_DATA_SIZE
+#define IWL_MAX_NUM_QUEUES	8
+
+static inline int iwl_hw_valid_rtc_data_addr(u32 addr)
+{
+	return (addr >= RTC_DATA_LOWER_BOUND) &&
+	       (addr < ALM_RTC_DATA_UPPER_BOUND);
+}
+
+/* Base physical address of iwl_shared is provided to FH_TSSR_CBB_BASE
+ * and &iwl_shared.rx_read_ptr[0] is provided to FH_RCSR_RPTR_ADDR(0) */
+struct iwl_shared {
+	__le32 tx_base_ptr[8];
+	__le32 rx_read_ptr[3];
+} __attribute__ ((packed));
+
+struct iwl_tfd_frame_data {
+	__le32 addr;
+	__le32 len;
+} __attribute__ ((packed));
+
+struct iwl_tfd_frame {
+	__le32 control_flags;
+	struct iwl_tfd_frame_data pa[4];
+	u8 reserved[28];
+} __attribute__ ((packed));
+
+static inline u8 iwl_hw_get_rate(__le16 rate_n_flags)
+{
+	return le16_to_cpu(rate_n_flags) & 0xFF;
+}
+
+static inline u16 iwl_hw_get_rate_n_flags(__le16 rate_n_flags)
+{
+	return le16_to_cpu(rate_n_flags);
+}
+
+static inline __le16 iwl_hw_set_rate_n_flags(u8 rate, u16 flags)
+{
+	return cpu_to_le16((u16)rate|flags);
+}
+#endif