drivers/net/wireless/iwlwifi/iwl-1000.c - maze/linux - Git at Google

 /******************************************************************************
  *
  * Copyright(c) 2008 - 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.
  *
  * Contact Information:
  *  Intel Linux Wireless <ilw@linux.intel.com>
  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  *
  *****************************************************************************/

 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <net/mac80211.h>
 #include <linux/etherdevice.h>
 #include <asm/unaligned.h>
 #include <linux/stringify.h>

 #include "iwl-eeprom.h"
 #include "iwl-dev.h"
 #include "iwl-core.h"
 #include "iwl-io.h"
 #include "iwl-agn.h"
 #include "iwl-agn-hw.h"
 #include "iwl-shared.h"
 #include "iwl-cfg.h"

 /* Highest firmware API version supported */
 #define IWL1000_UCODE_API_MAX 6
 #define IWL100_UCODE_API_MAX 6

 /* Oldest version we won't warn about */
 #define IWL1000_UCODE_API_OK 5
 #define IWL100_UCODE_API_OK 5

 /* Lowest firmware API version supported */
 #define IWL1000_UCODE_API_MIN 1
 #define IWL100_UCODE_API_MIN 5

 #define IWL1000_FW_PRE "iwlwifi-1000-"
 #define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE __stringify(api) ".ucode"

 #define IWL100_FW_PRE "iwlwifi-100-"
 #define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"


 /*
  * For 1000, use advance thermal throttling critical temperature threshold,
  * but legacy thermal management implementation for now.
  * This is for the reason of 1000 uCode using advance thermal throttling API
  * but not implement ct_kill_exit based on ct_kill exit temperature
  * so the thermal throttling will still based on legacy thermal throttling
  * management.
  * The code here need to be modified once 1000 uCode has the advanced thermal
  * throttling algorithm in place
  */
 static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
 {
 	/* want Celsius */
 	hw_params(priv).ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
 	hw_params(priv).ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
 }

 /* NIC configuration for 1000 series */
 static void iwl1000_nic_config(struct iwl_priv *priv)
 {
 	/* set CSR_HW_CONFIG_REG for uCode use */
 	iwl_set_bit(bus(priv), CSR_HW_IF_CONFIG_REG,
 		    CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 		    CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);

 	/* Setting digital SVR for 1000 card to 1.32V */
 	/* locking is acquired in iwl_set_bits_mask_prph() function */
 	iwl_set_bits_mask_prph(bus(priv), APMG_DIGITAL_SVR_REG,
 				APMG_SVR_DIGITAL_VOLTAGE_1_32,
 				~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
 }

 static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
 	.min_nrg_cck = 95,
 	.max_nrg_cck = 0, /* not used, set to 0 */
 	.auto_corr_min_ofdm = 90,
 	.auto_corr_min_ofdm_mrc = 170,
 	.auto_corr_min_ofdm_x1 = 120,
 	.auto_corr_min_ofdm_mrc_x1 = 240,

 	.auto_corr_max_ofdm = 120,
 	.auto_corr_max_ofdm_mrc = 210,
 	.auto_corr_max_ofdm_x1 = 155,
 	.auto_corr_max_ofdm_mrc_x1 = 290,

 	.auto_corr_min_cck = 125,
 	.auto_corr_max_cck = 200,
 	.auto_corr_min_cck_mrc = 170,
 	.auto_corr_max_cck_mrc = 400,
 	.nrg_th_cck = 95,
 	.nrg_th_ofdm = 95,

 	.barker_corr_th_min = 190,
 	.barker_corr_th_min_mrc = 390,
 	.nrg_th_cca = 62,
 };

 static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 {
 	if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
 	    iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
 		priv->cfg->base_params->num_of_queues =
 			iwlagn_mod_params.num_of_queues;

 	hw_params(priv).max_txq_num = priv->cfg->base_params->num_of_queues;
 	priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;

 	hw_params(priv).max_data_size = IWLAGN_RTC_DATA_SIZE;
 	hw_params(priv).max_inst_size = IWLAGN_RTC_INST_SIZE;

 	hw_params(priv).ht40_channel =  BIT(IEEE80211_BAND_2GHZ);

 	hw_params(priv).tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 	if (priv->cfg->rx_with_siso_diversity)
 		hw_params(priv).rx_chains_num = 1;
 	else
 		hw_params(priv).rx_chains_num =
 			num_of_ant(priv->cfg->valid_rx_ant);
 	hw_params(priv).valid_tx_ant = priv->cfg->valid_tx_ant;
 	hw_params(priv).valid_rx_ant = priv->cfg->valid_rx_ant;

 	iwl1000_set_ct_threshold(priv);

 	/* Set initial sensitivity parameters */
 	/* Set initial calibration set */
 	hw_params(priv).sens = &iwl1000_sensitivity;
 	hw_params(priv).calib_init_cfg =
 			BIT(IWL_CALIB_XTAL)		|
 			BIT(IWL_CALIB_LO)		|
 			BIT(IWL_CALIB_TX_IQ) 		|
 			BIT(IWL_CALIB_TX_IQ_PERD)	|
 			BIT(IWL_CALIB_BASE_BAND);
 	if (priv->cfg->need_dc_calib)
 		hw_params(priv).calib_init_cfg |= BIT(IWL_CALIB_DC);

 	return 0;
 }

 static struct iwl_lib_ops iwl1000_lib = {
 	.set_hw_params = iwl1000_hw_set_hw_params,
 	.nic_config = iwl1000_nic_config,
 	.eeprom_ops = {
 		.regulatory_bands = {
 			EEPROM_REG_BAND_1_CHANNELS,
 			EEPROM_REG_BAND_2_CHANNELS,
 			EEPROM_REG_BAND_3_CHANNELS,
 			EEPROM_REG_BAND_4_CHANNELS,
 			EEPROM_REG_BAND_5_CHANNELS,
 			EEPROM_REG_BAND_24_HT40_CHANNELS,
 			EEPROM_REGULATORY_BAND_NO_HT40,
 		},
 	},
 	.temperature = iwlagn_temperature,
 };

 static struct iwl_base_params iwl1000_base_params = {
 	.num_of_queues = IWLAGN_NUM_QUEUES,
 	.num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 	.max_ll_items = OTP_MAX_LL_ITEMS_1000,
 	.shadow_ram_support = false,
 	.led_compensation = 51,
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_DEF_WD_TIMEOUT,
 	.max_event_log_size = 128,
 };
 static struct iwl_ht_params iwl1000_ht_params = {
 	.ht_greenfield_support = true,
 	.use_rts_for_aggregation = true, /* use rts/cts protection */
 	.smps_mode = IEEE80211_SMPS_DYNAMIC,
 };

 #define IWL_DEVICE_1000						\
 	.fw_name_pre = IWL1000_FW_PRE,				\
 	.ucode_api_max = IWL1000_UCODE_API_MAX,			\
 	.ucode_api_ok = IWL1000_UCODE_API_OK,			\
 	.ucode_api_min = IWL1000_UCODE_API_MIN,			\
 	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,		\
 	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
 	.lib = &iwl1000_lib,					\
 	.base_params = &iwl1000_base_params,			\
 	.led_mode = IWL_LED_BLINK

 struct iwl_cfg iwl1000_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
 	IWL_DEVICE_1000,
 	.ht_params = &iwl1000_ht_params,
 };

 struct iwl_cfg iwl1000_bg_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
 	IWL_DEVICE_1000,
 };

 #define IWL_DEVICE_100						\
 	.fw_name_pre = IWL100_FW_PRE,				\
 	.ucode_api_max = IWL100_UCODE_API_MAX,			\
 	.ucode_api_ok = IWL100_UCODE_API_OK,			\
 	.ucode_api_min = IWL100_UCODE_API_MIN,			\
 	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,		\
 	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
 	.lib = &iwl1000_lib,					\
 	.base_params = &iwl1000_base_params,			\
 	.led_mode = IWL_LED_RF_STATE,				\
 	.rx_with_siso_diversity = true

 struct iwl_cfg iwl100_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
 	IWL_DEVICE_100,
 	.ht_params = &iwl1000_ht_params,
 };

 struct iwl_cfg iwl100_bg_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 100 BG",
 	IWL_DEVICE_100,
 };

 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
 MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));
	/******************************************************************************
	*
	* Copyright(c) 2008 - 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.
	*
	* Contact Information:
	* Intel Linux Wireless <ilw@linux.intel.com>
	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	*
	*****************************************************************************/

	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/init.h>
	#include <linux/delay.h>
	#include <linux/skbuff.h>
	#include <linux/netdevice.h>
	#include <net/mac80211.h>
	#include <linux/etherdevice.h>
	#include <asm/unaligned.h>
	#include <linux/stringify.h>

	#include "iwl-eeprom.h"
	#include "iwl-dev.h"
	#include "iwl-core.h"
	#include "iwl-io.h"
	#include "iwl-agn.h"
	#include "iwl-agn-hw.h"
	#include "iwl-shared.h"
	#include "iwl-cfg.h"

	/* Highest firmware API version supported */
	#define IWL1000_UCODE_API_MAX 6
	#define IWL100_UCODE_API_MAX 6

	/* Oldest version we won't warn about */
	#define IWL1000_UCODE_API_OK 5
	#define IWL100_UCODE_API_OK 5

	/* Lowest firmware API version supported */
	#define IWL1000_UCODE_API_MIN 1
	#define IWL100_UCODE_API_MIN 5

	#define IWL1000_FW_PRE "iwlwifi-1000-"
	#define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE __stringify(api) ".ucode"

	#define IWL100_FW_PRE "iwlwifi-100-"
	#define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"


	/*
	* For 1000, use advance thermal throttling critical temperature threshold,
	* but legacy thermal management implementation for now.
	* This is for the reason of 1000 uCode using advance thermal throttling API
	* but not implement ct_kill_exit based on ct_kill exit temperature
	* so the thermal throttling will still based on legacy thermal throttling
	* management.
	* The code here need to be modified once 1000 uCode has the advanced thermal
	* throttling algorithm in place
	*/
	static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
	{
	/* want Celsius */
	hw_params(priv).ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
	hw_params(priv).ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
	}

	/* NIC configuration for 1000 series */
	static void iwl1000_nic_config(struct iwl_priv *priv)
	{
	/* set CSR_HW_CONFIG_REG for uCode use */
	iwl_set_bit(bus(priv), CSR_HW_IF_CONFIG_REG,
	CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI \|
	CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);

	/* Setting digital SVR for 1000 card to 1.32V */
	/* locking is acquired in iwl_set_bits_mask_prph() function */
	iwl_set_bits_mask_prph(bus(priv), APMG_DIGITAL_SVR_REG,
	APMG_SVR_DIGITAL_VOLTAGE_1_32,
	~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
	}

	static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
	.min_nrg_cck = 95,
	.max_nrg_cck = 0, /* not used, set to 0 */
	.auto_corr_min_ofdm = 90,
	.auto_corr_min_ofdm_mrc = 170,
	.auto_corr_min_ofdm_x1 = 120,
	.auto_corr_min_ofdm_mrc_x1 = 240,

	.auto_corr_max_ofdm = 120,
	.auto_corr_max_ofdm_mrc = 210,
	.auto_corr_max_ofdm_x1 = 155,
	.auto_corr_max_ofdm_mrc_x1 = 290,

	.auto_corr_min_cck = 125,
	.auto_corr_max_cck = 200,
	.auto_corr_min_cck_mrc = 170,
	.auto_corr_max_cck_mrc = 400,
	.nrg_th_cck = 95,
	.nrg_th_ofdm = 95,

	.barker_corr_th_min = 190,
	.barker_corr_th_min_mrc = 390,
	.nrg_th_cca = 62,
	};

	static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
	{
	if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
	iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
	priv->cfg->base_params->num_of_queues =
	iwlagn_mod_params.num_of_queues;

	hw_params(priv).max_txq_num = priv->cfg->base_params->num_of_queues;
	priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;

	hw_params(priv).max_data_size = IWLAGN_RTC_DATA_SIZE;
	hw_params(priv).max_inst_size = IWLAGN_RTC_INST_SIZE;

	hw_params(priv).ht40_channel = BIT(IEEE80211_BAND_2GHZ);

	hw_params(priv).tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
	if (priv->cfg->rx_with_siso_diversity)
	hw_params(priv).rx_chains_num = 1;
	else
	hw_params(priv).rx_chains_num =
	num_of_ant(priv->cfg->valid_rx_ant);
	hw_params(priv).valid_tx_ant = priv->cfg->valid_tx_ant;
	hw_params(priv).valid_rx_ant = priv->cfg->valid_rx_ant;

	iwl1000_set_ct_threshold(priv);

	/* Set initial sensitivity parameters */
	/* Set initial calibration set */
	hw_params(priv).sens = &iwl1000_sensitivity;
	hw_params(priv).calib_init_cfg =
	BIT(IWL_CALIB_XTAL) \|
	BIT(IWL_CALIB_LO) \|
	BIT(IWL_CALIB_TX_IQ) \|
	BIT(IWL_CALIB_TX_IQ_PERD) \|
	BIT(IWL_CALIB_BASE_BAND);
	if (priv->cfg->need_dc_calib)
	hw_params(priv).calib_init_cfg \|= BIT(IWL_CALIB_DC);

	return 0;
	}

	static struct iwl_lib_ops iwl1000_lib = {
	.set_hw_params = iwl1000_hw_set_hw_params,
	.nic_config = iwl1000_nic_config,
	.eeprom_ops = {
	.regulatory_bands = {
	EEPROM_REG_BAND_1_CHANNELS,
	EEPROM_REG_BAND_2_CHANNELS,
	EEPROM_REG_BAND_3_CHANNELS,
	EEPROM_REG_BAND_4_CHANNELS,
	EEPROM_REG_BAND_5_CHANNELS,
	EEPROM_REG_BAND_24_HT40_CHANNELS,
	EEPROM_REGULATORY_BAND_NO_HT40,
	},
	},
	.temperature = iwlagn_temperature,
	};

	static struct iwl_base_params iwl1000_base_params = {
	.num_of_queues = IWLAGN_NUM_QUEUES,
	.num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
	.eeprom_size = OTP_LOW_IMAGE_SIZE,
	.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
	.max_ll_items = OTP_MAX_LL_ITEMS_1000,
	.shadow_ram_support = false,
	.led_compensation = 51,
	.support_ct_kill_exit = true,
	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
	.chain_noise_scale = 1000,
	.wd_timeout = IWL_DEF_WD_TIMEOUT,
	.max_event_log_size = 128,
	};
	static struct iwl_ht_params iwl1000_ht_params = {
	.ht_greenfield_support = true,
	.use_rts_for_aggregation = true, /* use rts/cts protection */
	.smps_mode = IEEE80211_SMPS_DYNAMIC,
	};

	#define IWL_DEVICE_1000 \
	.fw_name_pre = IWL1000_FW_PRE, \
	.ucode_api_max = IWL1000_UCODE_API_MAX, \
	.ucode_api_ok = IWL1000_UCODE_API_OK, \
	.ucode_api_min = IWL1000_UCODE_API_MIN, \
	.eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
	.lib = &iwl1000_lib, \
	.base_params = &iwl1000_base_params, \
	.led_mode = IWL_LED_BLINK

	struct iwl_cfg iwl1000_bgn_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
	IWL_DEVICE_1000,
	.ht_params = &iwl1000_ht_params,
	};

	struct iwl_cfg iwl1000_bg_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
	IWL_DEVICE_1000,
	};

	#define IWL_DEVICE_100 \
	.fw_name_pre = IWL100_FW_PRE, \
	.ucode_api_max = IWL100_UCODE_API_MAX, \
	.ucode_api_ok = IWL100_UCODE_API_OK, \
	.ucode_api_min = IWL100_UCODE_API_MIN, \
	.eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
	.lib = &iwl1000_lib, \
	.base_params = &iwl1000_base_params, \
	.led_mode = IWL_LED_RF_STATE, \
	.rx_with_siso_diversity = true

	struct iwl_cfg iwl100_bgn_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
	IWL_DEVICE_100,
	.ht_params = &iwl1000_ht_params,
	};

	struct iwl_cfg iwl100_bg_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 100 BG",
	IWL_DEVICE_100,
	};

	MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
	MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));