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/pci.h>
  31 #include <linux/dma-mapping.h>
  32 #include <linux/delay.h>
  33 #include <linux/skbuff.h>
  34 #include <linux/netdevice.h>
  35 #include <linux/wireless.h>
  36 #include <net/mac80211.h>
  37 #include <linux/etherdevice.h>
  38 #include <asm/unaligned.h>
  39 #include <linux/stringify.h>
  40
  41 #include "iwl-eeprom.h"
  42 #include "iwl-dev.h"
  43 #include "iwl-core.h"
  44 #include "iwl-io.h"
  45 #include "iwl-sta.h"
  46 #include "iwl-agn.h"
  47 #include "iwl-helpers.h"
  48 #include "iwl-agn-hw.h"
  49
  50 /* Highest firmware API version supported */
  51 #define IWL1000_UCODE_API_MAX 5
  52 #define IWL100_UCODE_API_MAX 5
  53
  54 /* Lowest firmware API version supported */
  55 #define IWL1000_UCODE_API_MIN 1
  56 #define IWL100_UCODE_API_MIN 5
  57
  58 #define IWL1000_FW_PRE "iwlwifi-1000-"
  59 #define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE __stringify(api) ".ucode"
  60
  61 #define IWL100_FW_PRE "iwlwifi-100-"
  62 #define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"
  63
  64
  65 /*
  66  * For 1000, use advance thermal throttling critical temperature threshold,
  67  * but legacy thermal management implementation for now.
  68  * This is for the reason of 1000 uCode using advance thermal throttling API
  69  * but not implement ct_kill_exit based on ct_kill exit temperature
  70  * so the thermal throttling will still based on legacy thermal throttling
  71  * management.
  72  * The code here need to be modified once 1000 uCode has the advanced thermal
  73  * throttling algorithm in place
  74  */
  75 static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
  76 {
  77         /* want Celsius */
  78         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
  79         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  80 }
  81
  82 /* NIC configuration for 1000 series */
  83 static void iwl1000_nic_config(struct iwl_priv *priv)
  84 {
  85         /* set CSR_HW_CONFIG_REG for uCode use */
  86         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
  87                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
  88                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
  89
  90         /* Setting digital SVR for 1000 card to 1.32V */
  91         /* locking is acquired in iwl_set_bits_mask_prph() function */
  92         iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
  93                                 APMG_SVR_DIGITAL_VOLTAGE_1_32,
  94                                 ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
  95 }
  96
  97 static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
  98         .min_nrg_cck = 95,
  99         .max_nrg_cck = 0, /* not used, set to 0 */
 100         .auto_corr_min_ofdm = 90,
 101         .auto_corr_min_ofdm_mrc = 170,
 102         .auto_corr_min_ofdm_x1 = 120,
 103         .auto_corr_min_ofdm_mrc_x1 = 240,
 104
 105         .auto_corr_max_ofdm = 120,
 106         .auto_corr_max_ofdm_mrc = 210,
 107         .auto_corr_max_ofdm_x1 = 155,
 108         .auto_corr_max_ofdm_mrc_x1 = 290,
 109
 110         .auto_corr_min_cck = 125,
 111         .auto_corr_max_cck = 200,
 112         .auto_corr_min_cck_mrc = 170,
 113         .auto_corr_max_cck_mrc = 400,
 114         .nrg_th_cck = 95,
 115         .nrg_th_ofdm = 95,
 116
 117         .barker_corr_th_min = 190,
 118         .barker_corr_th_min_mrc = 390,
 119         .nrg_th_cca = 62,
 120 };
 121
 122 static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 123 {
 124         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
 125             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
 126                 priv->cfg->base_params->num_of_queues =
 127                         iwlagn_mod_params.num_of_queues;
 128
 129         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
 130         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
 131         priv->hw_params.scd_bc_tbls_size =
 132                         priv->cfg->base_params->num_of_queues *
 133                         sizeof(struct iwlagn_scd_bc_tbl);
 134         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 135         priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
 136         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
 137
 138         priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
 139         priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
 140
 141         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 142                                         BIT(IEEE80211_BAND_5GHZ);
 143         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 144
 145         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 146         if (priv->cfg->rx_with_siso_diversity)
 147                 priv->hw_params.rx_chains_num = 1;
 148         else
 149                 priv->hw_params.rx_chains_num =
 150                         num_of_ant(priv->cfg->valid_rx_ant);
 151         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
 152         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 153
 154         iwl1000_set_ct_threshold(priv);
 155
 156         /* Set initial sensitivity parameters */
 157         /* Set initial calibration set */
 158         priv->hw_params.sens = &iwl1000_sensitivity;
 159         priv->hw_params.calib_init_cfg =
 160                         BIT(IWL_CALIB_XTAL)             |
 161                         BIT(IWL_CALIB_LO)               |
 162                         BIT(IWL_CALIB_TX_IQ)            |
 163                         BIT(IWL_CALIB_TX_IQ_PERD)       |
 164                         BIT(IWL_CALIB_BASE_BAND);
 165         if (priv->cfg->need_dc_calib)
 166                 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
 167
 168         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
 169
 170         return 0;
 171 }
 172
 173 static struct iwl_lib_ops iwl1000_lib = {
 174         .set_hw_params = iwl1000_hw_set_hw_params,
 175         .rx_handler_setup = iwlagn_rx_handler_setup,
 176         .setup_deferred_work = iwlagn_setup_deferred_work,
 177         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
 178         .send_tx_power = iwlagn_send_tx_power,
 179         .update_chain_flags = iwl_update_chain_flags,
 180         .apm_ops = {
 181                 .init = iwl_apm_init,
 182                 .config = iwl1000_nic_config,
 183         },
 184         .eeprom_ops = {
 185                 .regulatory_bands = {
 186                         EEPROM_REG_BAND_1_CHANNELS,
 187                         EEPROM_REG_BAND_2_CHANNELS,
 188                         EEPROM_REG_BAND_3_CHANNELS,
 189                         EEPROM_REG_BAND_4_CHANNELS,
 190                         EEPROM_REG_BAND_5_CHANNELS,
 191                         EEPROM_REG_BAND_24_HT40_CHANNELS,
 192                         EEPROM_REGULATORY_BAND_NO_HT40,
 193                 },
 194                 .query_addr = iwlagn_eeprom_query_addr,
 195         },
 196         .temp_ops = {
 197                 .temperature = iwlagn_temperature,
 198          },
 199         .txfifo_flush = iwlagn_txfifo_flush,
 200         .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
 201 };
 202
 203 static const struct iwl_ops iwl1000_ops = {
 204         .lib = &iwl1000_lib,
 205         .hcmd = &iwlagn_hcmd,
 206         .utils = &iwlagn_hcmd_utils,
 207 };
 208
 209 static struct iwl_base_params iwl1000_base_params = {
 210         .num_of_queues = IWLAGN_NUM_QUEUES,
 211         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 212         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 213         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 214         .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 215         .shadow_ram_support = false,
 216         .led_compensation = 51,
 217         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 218         .support_ct_kill_exit = true,
 219         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 220         .chain_noise_scale = 1000,
 221         .wd_timeout = IWL_DEF_WD_TIMEOUT,
 222         .max_event_log_size = 128,
 223 };
 224 static struct iwl_ht_params iwl1000_ht_params = {
 225         .ht_greenfield_support = true,
 226         .use_rts_for_aggregation = true, /* use rts/cts protection */
 227 };
 228
 229 #define IWL_DEVICE_1000                                         \
 230         .fw_name_pre = IWL1000_FW_PRE,                          \
 231         .ucode_api_max = IWL1000_UCODE_API_MAX,                 \
 232         .ucode_api_min = IWL1000_UCODE_API_MIN,                 \
 233         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 234         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 235         .ops = &iwl1000_ops,                                    \
 236         .base_params = &iwl1000_base_params,                    \
 237         .led_mode = IWL_LED_BLINK
 238
 239 struct iwl_cfg iwl1000_bgn_cfg = {
 240         .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
 241         IWL_DEVICE_1000,
 242         .ht_params = &iwl1000_ht_params,
 243 };
 244
 245 struct iwl_cfg iwl1000_bg_cfg = {
 246         .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
 247         IWL_DEVICE_1000,
 248 };
 249
 250 #define IWL_DEVICE_100                                          \
 251         .fw_name_pre = IWL100_FW_PRE,                           \
 252         .ucode_api_max = IWL100_UCODE_API_MAX,                  \
 253         .ucode_api_min = IWL100_UCODE_API_MIN,                  \
 254         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 255         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 256         .ops = &iwl1000_ops,                                    \
 257         .base_params = &iwl1000_base_params,                    \
 258         .led_mode = IWL_LED_RF_STATE,                           \
 259         .rx_with_siso_diversity = true
 260
 261 struct iwl_cfg iwl100_bgn_cfg = {
 262         .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
 263         IWL_DEVICE_100,
 264         .ht_params = &iwl1000_ht_params,
 265 };
 266
 267 struct iwl_cfg iwl100_bg_cfg = {
 268         .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
 269         IWL_DEVICE_100,
 270 };
 271
 272 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
 273 MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));