drivers/net/wireless/iwlwifi/iwl-1000.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  *  Intel Linux Wireless <ilw@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26
  27 #include <linux/kernel.h>
  28 #include <linux/module.h>
  29 #include <linux/init.h>
  30 #include <linux/delay.h>
  31 #include <linux/skbuff.h>
  32 #include <linux/netdevice.h>
  33 #include <net/mac80211.h>
  34 #include <linux/etherdevice.h>
  35 #include <asm/unaligned.h>
  36 #include <linux/stringify.h>
  37
  38 #include "iwl-eeprom.h"
  39 #include "iwl-dev.h"
  40 #include "iwl-core.h"
  41 #include "iwl-io.h"
  42 #include "iwl-agn.h"
  43 #include "iwl-agn-hw.h"
  44 #include "iwl-shared.h"
  45 #include "iwl-cfg.h"
  46
  47 /* Highest firmware API version supported */
  48 #define IWL1000_UCODE_API_MAX 6
  49 #define IWL100_UCODE_API_MAX 6
  50
  51 /* Oldest version we won't warn about */
  52 #define IWL1000_UCODE_API_OK 5
  53 #define IWL100_UCODE_API_OK 5
  54
  55 /* Lowest firmware API version supported */
  56 #define IWL1000_UCODE_API_MIN 1
  57 #define IWL100_UCODE_API_MIN 5
  58
  59 #define IWL1000_FW_PRE "iwlwifi-1000-"
  60 #define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE __stringify(api) ".ucode"
  61
  62 #define IWL100_FW_PRE "iwlwifi-100-"
  63 #define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"
  64
  65
  66 /*
  67  * For 1000, use advance thermal throttling critical temperature threshold,
  68  * but legacy thermal management implementation for now.
  69  * This is for the reason of 1000 uCode using advance thermal throttling API
  70  * but not implement ct_kill_exit based on ct_kill exit temperature
  71  * so the thermal throttling will still based on legacy thermal throttling
  72  * management.
  73  * The code here need to be modified once 1000 uCode has the advanced thermal
  74  * throttling algorithm in place
  75  */
  76 static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
  77 {
  78         /* want Celsius */
  79         hw_params(priv).ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
  80         hw_params(priv).ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  81 }
  82
  83 /* NIC configuration for 1000 series */
  84 static void iwl1000_nic_config(struct iwl_priv *priv)
  85 {
  86         /* set CSR_HW_CONFIG_REG for uCode use */
  87         iwl_set_bit(bus(priv), CSR_HW_IF_CONFIG_REG,
  88                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
  89                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
  90
  91         /* Setting digital SVR for 1000 card to 1.32V */
  92         /* locking is acquired in iwl_set_bits_mask_prph() function */
  93         iwl_set_bits_mask_prph(bus(priv), APMG_DIGITAL_SVR_REG,
  94                                 APMG_SVR_DIGITAL_VOLTAGE_1_32,
  95                                 ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
  96 }
  97
  98 static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
  99         .min_nrg_cck = 95,
 100         .max_nrg_cck = 0, /* not used, set to 0 */
 101         .auto_corr_min_ofdm = 90,
 102         .auto_corr_min_ofdm_mrc = 170,
 103         .auto_corr_min_ofdm_x1 = 120,
 104         .auto_corr_min_ofdm_mrc_x1 = 240,
 105
 106         .auto_corr_max_ofdm = 120,
 107         .auto_corr_max_ofdm_mrc = 210,
 108         .auto_corr_max_ofdm_x1 = 155,
 109         .auto_corr_max_ofdm_mrc_x1 = 290,
 110
 111         .auto_corr_min_cck = 125,
 112         .auto_corr_max_cck = 200,
 113         .auto_corr_min_cck_mrc = 170,
 114         .auto_corr_max_cck_mrc = 400,
 115         .nrg_th_cck = 95,
 116         .nrg_th_ofdm = 95,
 117
 118         .barker_corr_th_min = 190,
 119         .barker_corr_th_min_mrc = 390,
 120         .nrg_th_cca = 62,
 121 };
 122
 123 static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 124 {
 125         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
 126             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
 127                 priv->cfg->base_params->num_of_queues =
 128                         iwlagn_mod_params.num_of_queues;
 129
 130         hw_params(priv).max_txq_num = priv->cfg->base_params->num_of_queues;
 131         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
 132
 133         hw_params(priv).max_data_size = IWLAGN_RTC_DATA_SIZE;
 134         hw_params(priv).max_inst_size = IWLAGN_RTC_INST_SIZE;
 135
 136         hw_params(priv).ht40_channel =  BIT(IEEE80211_BAND_2GHZ);
 137
 138         hw_params(priv).tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 139         if (priv->cfg->rx_with_siso_diversity)
 140                 hw_params(priv).rx_chains_num = 1;
 141         else
 142                 hw_params(priv).rx_chains_num =
 143                         num_of_ant(priv->cfg->valid_rx_ant);
 144         hw_params(priv).valid_tx_ant = priv->cfg->valid_tx_ant;
 145         hw_params(priv).valid_rx_ant = priv->cfg->valid_rx_ant;
 146
 147         iwl1000_set_ct_threshold(priv);
 148
 149         /* Set initial sensitivity parameters */
 150         hw_params(priv).sens = &iwl1000_sensitivity;
 151
 152         return 0;
 153 }
 154
 155 static struct iwl_lib_ops iwl1000_lib = {
 156         .set_hw_params = iwl1000_hw_set_hw_params,
 157         .nic_config = iwl1000_nic_config,
 158         .eeprom_ops = {
 159                 .regulatory_bands = {
 160                         EEPROM_REG_BAND_1_CHANNELS,
 161                         EEPROM_REG_BAND_2_CHANNELS,
 162                         EEPROM_REG_BAND_3_CHANNELS,
 163                         EEPROM_REG_BAND_4_CHANNELS,
 164                         EEPROM_REG_BAND_5_CHANNELS,
 165                         EEPROM_REG_BAND_24_HT40_CHANNELS,
 166                         EEPROM_REGULATORY_BAND_NO_HT40,
 167                 },
 168         },
 169         .temperature = iwlagn_temperature,
 170 };
 171
 172 static struct iwl_base_params iwl1000_base_params = {
 173         .num_of_queues = IWLAGN_NUM_QUEUES,
 174         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 175         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 176         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 177         .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 178         .shadow_ram_support = false,
 179         .led_compensation = 51,
 180         .support_ct_kill_exit = true,
 181         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 182         .chain_noise_scale = 1000,
 183         .wd_timeout = IWL_DEF_WD_TIMEOUT,
 184         .max_event_log_size = 128,
 185         .wd_disable = true,
 186 };
 187 static struct iwl_ht_params iwl1000_ht_params = {
 188         .ht_greenfield_support = true,
 189         .use_rts_for_aggregation = true, /* use rts/cts protection */
 190         .smps_mode = IEEE80211_SMPS_DYNAMIC,
 191 };
 192
 193 #define IWL_DEVICE_1000                                         \
 194         .fw_name_pre = IWL1000_FW_PRE,                          \
 195         .ucode_api_max = IWL1000_UCODE_API_MAX,                 \
 196         .ucode_api_ok = IWL1000_UCODE_API_OK,                   \
 197         .ucode_api_min = IWL1000_UCODE_API_MIN,                 \
 198         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 199         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 200         .lib = &iwl1000_lib,                                    \
 201         .base_params = &iwl1000_base_params,                    \
 202         .led_mode = IWL_LED_BLINK
 203
 204 struct iwl_cfg iwl1000_bgn_cfg = {
 205         .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
 206         IWL_DEVICE_1000,
 207         .ht_params = &iwl1000_ht_params,
 208 };
 209
 210 struct iwl_cfg iwl1000_bg_cfg = {
 211         .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
 212         IWL_DEVICE_1000,
 213 };
 214
 215 #define IWL_DEVICE_100                                          \
 216         .fw_name_pre = IWL100_FW_PRE,                           \
 217         .ucode_api_max = IWL100_UCODE_API_MAX,                  \
 218         .ucode_api_ok = IWL100_UCODE_API_OK,                    \
 219         .ucode_api_min = IWL100_UCODE_API_MIN,                  \
 220         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 221         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 222         .lib = &iwl1000_lib,                                    \
 223         .base_params = &iwl1000_base_params,                    \
 224         .led_mode = IWL_LED_RF_STATE,                           \
 225         .rx_with_siso_diversity = true
 226
 227 struct iwl_cfg iwl100_bgn_cfg = {
 228         .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
 229         IWL_DEVICE_100,
 230         .ht_params = &iwl1000_ht_params,
 231 };
 232
 233 struct iwl_cfg iwl100_bg_cfg = {
 234         .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
 235         IWL_DEVICE_100,
 236 };
 237
 238 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
 239 MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));