[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 <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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:	yi.zhu@intel.com
+L:	linux-wireless@vger.kernel.org
+L:	ipw3945-devel@lists.sourceforge.net
+W:	http://intellinuxwireless.org
+T:	git git://intellinuxwireless.org/repos/iwlwifi
+S:	Supported
+
 IOC3 ETHERNET DRIVER
 P:	Ralf Baechle
 M:	ralf@linux-mips.org

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

+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

+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

+/******************************************************************************
+ *
+ * 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 <ipw2100-admin@linux.intel.com>
+ * 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

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

+/******************************************************************************
+ *
+ * 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 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.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwl_3945_rs_h__
+#define __iwl_3945_rs_h__
+
+struct iwl_rate_info {
+	u8 plcp;
+	u8 ieee;
+	u8 prev_ieee;		/* previous rate in IEEE speeds */
+	u8 next_ieee;		/* next rate in IEEE speeds */
+	u8 prev_rs;		/* previous rate used in rs algo */
+	u8 next_rs;		/* next rate used in rs algo */
+	u8 prev_rs_tgg;		/* previous rate used in TGG rs algo */
+	u8 next_rs_tgg;		/* next rate used in TGG rs algo */
+};
+
+enum {
+	IWL_RATE_6M_INDEX = 0,
+	IWL_RATE_9M_INDEX,
+	IWL_RATE_12M_INDEX,
+	IWL_RATE_18M_INDEX,
+	IWL_RATE_24M_INDEX,
+	IWL_RATE_36M_INDEX,
+	IWL_RATE_48M_INDEX,
+	IWL_RATE_54M_INDEX,
+	IWL_RATE_1M_INDEX,
+	IWL_RATE_2M_INDEX,
+	IWL_RATE_5M_INDEX,
+	IWL_RATE_11M_INDEX,
+	IWL_RATE_COUNT,
+	IWL_RATE_INVM_INDEX,
+	IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
+};
+
+enum {
+	IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
+	IWL_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
+	IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
+	IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
+};
+
+/* #define vs. enum to keep from defaulting to 'large integer' */
+#define	IWL_RATE_6M_MASK   (1<<IWL_RATE_6M_INDEX)
+#define	IWL_RATE_9M_MASK   (1<<IWL_RATE_9M_INDEX)
+#define	IWL_RATE_12M_MASK  (1<<IWL_RATE_12M_INDEX)
+#define	IWL_RATE_18M_MASK  (1<<IWL_RATE_18M_INDEX)
+#define	IWL_RATE_24M_MASK  (1<<IWL_RATE_24M_INDEX)
+#define	IWL_RATE_36M_MASK  (1<<IWL_RATE_36M_INDEX)
+#define	IWL_RATE_48M_MASK  (1<<IWL_RATE_48M_INDEX)
+#define	IWL_RATE_54M_MASK  (1<<IWL_RATE_54M_INDEX)
+#define	IWL_RATE_1M_MASK   (1<<IWL_RATE_1M_INDEX)
+#define	IWL_RATE_2M_MASK   (1<<IWL_RATE_2M_INDEX)
+#define	IWL_RATE_5M_MASK   (1<<IWL_RATE_5M_INDEX)
+#define	IWL_RATE_11M_MASK  (1<<IWL_RATE_11M_INDEX)
+
+enum {
+	IWL_RATE_6M_PLCP = 13,
+	IWL_RATE_9M_PLCP = 15,
+	IWL_RATE_12M_PLCP = 5,
+	IWL_RATE_18M_PLCP = 7,
+	IWL_RATE_24M_PLCP = 9,
+	IWL_RATE_36M_PLCP = 11,
+	IWL_RATE_48M_PLCP = 1,
+	IWL_RATE_54M_PLCP = 3,
+	IWL_RATE_1M_PLCP = 10,
+	IWL_RATE_2M_PLCP = 20,
+	IWL_RATE_5M_PLCP = 55,
+	IWL_RATE_11M_PLCP = 110,
+};
+
+enum {
+	IWL_RATE_6M_IEEE = 12,
+	IWL_RATE_9M_IEEE = 18,
+	IWL_RATE_12M_IEEE = 24,
+	IWL_RATE_18M_IEEE = 36,
+	IWL_RATE_24M_IEEE = 48,
+	IWL_RATE_36M_IEEE = 72,
+	IWL_RATE_48M_IEEE = 96,
+	IWL_RATE_54M_IEEE = 108,
+	IWL_RATE_1M_IEEE = 2,
+	IWL_RATE_2M_IEEE = 4,
+	IWL_RATE_5M_IEEE = 11,
+	IWL_RATE_11M_IEEE = 22,
+};
+
+#define IWL_CCK_BASIC_RATES_MASK    \
+       (IWL_RATE_1M_MASK          | \
+	IWL_RATE_2M_MASK)
+
+#define IWL_CCK_RATES_MASK          \
+       (IWL_BASIC_RATES_MASK      | \
+	IWL_RATE_5M_MASK          | \
+	IWL_RATE_11M_MASK)
+
+#define IWL_OFDM_BASIC_RATES_MASK   \
+	(IWL_RATE_6M_MASK         | \
+	IWL_RATE_12M_MASK         | \
+	IWL_RATE_24M_MASK)
+
+#define IWL_OFDM_RATES_MASK         \
+       (IWL_OFDM_BASIC_RATES_MASK | \
+	IWL_RATE_9M_MASK          | \
+	IWL_RATE_18M_MASK         | \
+	IWL_RATE_36M_MASK         | \
+	IWL_RATE_48M_MASK         | \
+	IWL_RATE_54M_MASK)
+
+#define IWL_BASIC_RATES_MASK         \
+	(IWL_OFDM_BASIC_RATES_MASK | \
+	 IWL_CCK_BASIC_RATES_MASK)
+
+#define IWL_RATES_MASK ((1<<IWL_RATE_COUNT)-1)
+
+#define IWL_INVALID_VALUE    -1
+
+#define IWL_MIN_RSSI_VAL                 -100
+#define IWL_MAX_RSSI_VAL                    0
+
+extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
+
+static inline u8 iwl_get_prev_ieee_rate(u8 rate_index)
+{
+	u8 rate = iwl_rates[rate_index].prev_ieee;
+
+	if (rate == IWL_RATE_INVALID)
+		rate = rate_index;
+	return rate;
+}
+
+/**
+ * iwl_fill_rs_info - Fill an output text buffer with the rate representation
+ *
+ * NOTE:  This is provided as a quick mechanism for a user to visualize
+ * the performance of the rate control alogirthm and is not meant to be
+ * parsed software.
+ */
+extern int iwl_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
+
+/**
+ * iwl_rate_scale_init - Initialize the rate scale table based on assoc info
+ *
+ * The specific througput table used is based on the type of network
+ * the associated with, including A, B, G, and G w/ TGG protection
+ */
+extern void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
+
+/**
+ * iwl_rate_control_register - Register the rate control algorithm callbacks
+ *
+ * Since the rate control algorithm is hardware specific, there is no need
+ * or reason to place it as a stand alone module.  The driver can call
+ * iwl_rate_control_register in order to register the rate control callbacks
+ * with the mac80211 subsystem.  This should be performed prior to calling
+ * ieee80211_register_hw
+ *
+ */
+extern void iwl_rate_control_register(struct ieee80211_hw *hw);
+
+/**
+ * iwl_rate_control_unregister - Unregister the rate control callbacks
+ *
+ * This should be called after calling ieee80211_unregister_hw, but before
+ * the driver is unloaded.
+ */
+extern void iwl_rate_control_unregister(struct ieee80211_hw *hw);
+
+#endif

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

+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 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 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.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwl_3945_h__
+#define __iwl_3945_h__
+
+/*
+ * Forward declare iwl-3945.c functions for iwl-base.c
+ */
+extern int iwl_eeprom_aqcuire_semaphore(struct iwl_priv *priv);
+extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
+extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
+extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
+extern void iwl3945_bg_reg_txpower_periodic(struct work_struct *work);
+extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
+extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
+		 u16 tx_rate, u8 flags);
+#endif

drivers/net/wireless/iwlwifi/iwl-4965-rs.h

+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 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 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.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwl_4965_rs_h__
+#define __iwl_4965_rs_h__
+
+#include "iwl-4965.h"
+
+struct iwl_rate_info {
+	u8 plcp;
+	u8 plcp_siso;
+	u8 plcp_mimo;
+	u8 ieee;
+	u8 prev_ieee;    /* previous rate in IEEE speeds */
+	u8 next_ieee;    /* next rate in IEEE speeds */
+	u8 prev_rs;      /* previous rate used in rs algo */
+	u8 next_rs;      /* next rate used in rs algo */
+	u8 prev_rs_tgg;  /* previous rate used in TGG rs algo */
+	u8 next_rs_tgg;  /* next rate used in TGG rs algo */
+};
+
+enum {
+	IWL_RATE_1M_INDEX = 0,
+	IWL_RATE_2M_INDEX,
+	IWL_RATE_5M_INDEX,
+	IWL_RATE_11M_INDEX,
+	IWL_RATE_6M_INDEX,
+	IWL_RATE_9M_INDEX,
+	IWL_RATE_12M_INDEX,
+	IWL_RATE_18M_INDEX,
+	IWL_RATE_24M_INDEX,
+	IWL_RATE_36M_INDEX,
+	IWL_RATE_48M_INDEX,
+	IWL_RATE_54M_INDEX,
+	IWL_RATE_60M_INDEX,
+	IWL_RATE_COUNT,
+	IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
+	IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
+};
+
+enum {
+	IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
+	IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX,
+	IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
+	IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
+};
+
+/* #define vs. enum to keep from defaulting to 'large integer' */
+#define	IWL_RATE_6M_MASK   (1<<IWL_RATE_6M_INDEX)
+#define	IWL_RATE_9M_MASK   (1<<IWL_RATE_9M_INDEX)
+#define	IWL_RATE_12M_MASK  (1<<IWL_RATE_12M_INDEX)
+#define	IWL_RATE_18M_MASK  (1<<IWL_RATE_18M_INDEX)
+#define	IWL_RATE_24M_MASK  (1<<IWL_RATE_24M_INDEX)
+#define	IWL_RATE_36M_MASK  (1<<IWL_RATE_36M_INDEX)
+#define	IWL_RATE_48M_MASK  (1<<IWL_RATE_48M_INDEX)
+#define	IWL_RATE_54M_MASK  (1<<IWL_RATE_54M_INDEX)
+#define IWL_RATE_60M_MASK  (1<<IWL_RATE_60M_INDEX)
+#define	IWL_RATE_1M_MASK   (1<<IWL_RATE_1M_INDEX)
+#define	IWL_RATE_2M_MASK   (1<<IWL_RATE_2M_INDEX)
+#define	IWL_RATE_5M_MASK   (1<<IWL_RATE_5M_INDEX)
+#define	IWL_RATE_11M_MASK  (1<<IWL_RATE_11M_INDEX)
+
+enum {
+	IWL_RATE_6M_PLCP  = 13,
+	IWL_RATE_9M_PLCP  = 15,
+	IWL_RATE_12M_PLCP = 5,
+	IWL_RATE_18M_PLCP = 7,
+	IWL_RATE_24M_PLCP = 9,
+	IWL_RATE_36M_PLCP = 11,
+	IWL_RATE_48M_PLCP = 1,
+	IWL_RATE_54M_PLCP = 3,
+	IWL_RATE_60M_PLCP = 3,
+	IWL_RATE_1M_PLCP  = 10,
+	IWL_RATE_2M_PLCP  = 20,
+	IWL_RATE_5M_PLCP  = 55,
+	IWL_RATE_11M_PLCP = 110,
+};
+
+/* OFDM HT rate plcp */
+enum {
+	IWL_RATE_SISO_6M_PLCP = 0,
+	IWL_RATE_SISO_12M_PLCP = 1,
+	IWL_RATE_SISO_18M_PLCP = 2,
+	IWL_RATE_SISO_24M_PLCP = 3,
+	IWL_RATE_SISO_36M_PLCP = 4,
+	IWL_RATE_SISO_48M_PLCP = 5,
+	IWL_RATE_SISO_54M_PLCP = 6,
+	IWL_RATE_SISO_60M_PLCP = 7,
+	IWL_RATE_MIMO_6M_PLCP  = 0x8,
+	IWL_RATE_MIMO_12M_PLCP = 0x9,
+	IWL_RATE_MIMO_18M_PLCP = 0xa,
+	IWL_RATE_MIMO_24M_PLCP = 0xb,
+	IWL_RATE_MIMO_36M_PLCP = 0xc,
+	IWL_RATE_MIMO_48M_PLCP = 0xd,
+	IWL_RATE_MIMO_54M_PLCP = 0xe,
+	IWL_RATE_MIMO_60M_PLCP = 0xf,
+	IWL_RATE_SISO_INVM_PLCP,
+	IWL_RATE_MIMO_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
+};
+
+enum {
+	IWL_RATE_6M_IEEE  = 12,
+	IWL_RATE_9M_IEEE  = 18,
+	IWL_RATE_12M_IEEE = 24,
+	IWL_RATE_18M_IEEE = 36,
+	IWL_RATE_24M_IEEE = 48,
+	IWL_RATE_36M_IEEE = 72,
+	IWL_RATE_48M_IEEE = 96,
+	IWL_RATE_54M_IEEE = 108,
+	IWL_RATE_60M_IEEE = 120,
+	IWL_RATE_1M_IEEE  = 2,
+	IWL_RATE_2M_IEEE  = 4,
+	IWL_RATE_5M_IEEE  = 11,
+	IWL_RATE_11M_IEEE = 22,
+};
+
+#define IWL_CCK_BASIC_RATES_MASK    \
+       (IWL_RATE_1M_MASK          | \
+	IWL_RATE_2M_MASK)
+
+#define IWL_CCK_RATES_MASK          \
+       (IWL_BASIC_RATES_MASK      | \
+	IWL_RATE_5M_MASK          | \
+	IWL_RATE_11M_MASK)
+
+#define IWL_OFDM_BASIC_RATES_MASK   \
+	(IWL_RATE_6M_MASK         | \
+	IWL_RATE_12M_MASK         | \
+	IWL_RATE_24M_MASK)
+
+#define IWL_OFDM_RATES_MASK         \
+       (IWL_OFDM_BASIC_RATES_MASK | \
+	IWL_RATE_9M_MASK          | \
+	IWL_RATE_18M_MASK         | \
+	IWL_RATE_36M_MASK         | \
+	IWL_RATE_48M_MASK         | \
+	IWL_RATE_54M_MASK)
+
+#define IWL_BASIC_RATES_MASK         \
+	(IWL_OFDM_BASIC_RATES_MASK | \
+	 IWL_CCK_BASIC_RATES_MASK)
+
+#define IWL_RATES_MASK ((1<<IWL_RATE_COUNT)-1)
+
+#define IWL_INVALID_VALUE    -1
+
+#define IWL_MIN_RSSI_VAL                 -100
+#define IWL_MAX_RSSI_VAL                    0
+
+#define IWL_LEGACY_SWITCH_ANTENNA	0
+#define IWL_LEGACY_SWITCH_SISO		1
+#define IWL_LEGACY_SWITCH_MIMO	        2
+
+#define IWL_RS_GOOD_RATIO		12800
+
+#define IWL_ACTION_LIMIT		3
+#define IWL_LEGACY_FAILURE_LIMIT	160
+#define IWL_LEGACY_SUCCESS_LIMIT	480
+#define IWL_LEGACY_TABLE_COUNT		160
+
+#define IWL_NONE_LEGACY_FAILURE_LIMIT	400
+#define IWL_NONE_LEGACY_SUCCESS_LIMIT	4500
+#define IWL_NONE_LEGACY_TABLE_COUNT	1500
+
+#define IWL_RATE_SCALE_SWITCH		(10880)
+
+#define IWL_SISO_SWITCH_ANTENNA		0
+#define IWL_SISO_SWITCH_MIMO		1
+#define IWL_SISO_SWITCH_GI		2
+
+#define IWL_MIMO_SWITCH_ANTENNA_A	0
+#define IWL_MIMO_SWITCH_ANTENNA_B	1
+#define IWL_MIMO_SWITCH_GI		2
+
+#define LQ_SIZE		2
+
+extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
+
+enum iwl_table_type {
+	LQ_NONE,
+	LQ_G,
+	LQ_A,
+	LQ_SISO,
+	LQ_MIMO,
+	LQ_MAX,
+};
+
+enum iwl_antenna_type {
+	ANT_NONE,
+	ANT_MAIN,
+	ANT_AUX,
+	ANT_BOTH,
+};
+
+static inline u8 iwl_get_prev_ieee_rate(u8 rate_index)
+{
+	u8 rate = iwl_rates[rate_index].prev_ieee;
+
+	if (rate == IWL_RATE_INVALID)
+		rate = rate_index;
+	return rate;
+}
+
+extern int iwl_rate_index_from_plcp(int plcp);
+
+/**
+ * iwl_fill_rs_info - Fill an output text buffer with the rate representation
+ *
+ * NOTE:  This is provided as a quick mechanism for a user to visualize
+ * the performance of the rate control alogirthm and is not meant to be
+ * parsed software.
+ */
+extern int iwl_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
+
+/**
+ * iwl_rate_scale_init - Initialize the rate scale table based on assoc info
+ *
+ * The specific througput table used is based on the type of network
+ * the associated with, including A, B, G, and G w/ TGG protection
+ */
+extern void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
+
+/**
+ * iwl_rate_control_register - Register the rate control algorithm callbacks
+ *
+ * Since the rate control algorithm is hardware specific, there is no need
+ * or reason to place it as a stand alone module.  The driver can call
+ * iwl_rate_control_register in order to register the rate control callbacks
+ * with the mac80211 subsystem.  This should be performed prior to calling
+ * ieee80211_register_hw
+ *
+ */
+extern void iwl_rate_control_register(struct ieee80211_hw *hw);
+
+/**
+ * iwl_rate_control_unregister - Unregister the rate control callbacks
+ *
+ * This should be called after calling ieee80211_unregister_hw, but before
+ * the driver is unloaded.
+ */
+extern void iwl_rate_control_unregister(struct ieee80211_hw *hw);
+
+#endif