drivers/net/wireless/iwlwifi/iwl-2000.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 <linux/wireless.h>
  34 #include <net/mac80211.h>
  35 #include <linux/etherdevice.h>
  36 #include <asm/unaligned.h>
  37 #include <linux/stringify.h>
  38
  39 #include "iwl-eeprom.h"
  40 #include "iwl-dev.h"
  41 #include "iwl-core.h"
  42 #include "iwl-io.h"
  43 #include "iwl-sta.h"
  44 #include "iwl-agn.h"
  45 #include "iwl-helpers.h"
  46 #include "iwl-agn-hw.h"
  47 #include "iwl-6000-hw.h"
  48
  49 /* Highest firmware API version supported */
  50 #define IWL2030_UCODE_API_MAX 5
  51 #define IWL2000_UCODE_API_MAX 5
  52 #define IWL105_UCODE_API_MAX 5
  53 #define IWL135_UCODE_API_MAX 5
  54
  55 /* Lowest firmware API version supported */
  56 #define IWL2030_UCODE_API_MIN 5
  57 #define IWL2000_UCODE_API_MIN 5
  58 #define IWL105_UCODE_API_MIN 5
  59 #define IWL135_UCODE_API_MIN 5
  60
  61 #define IWL2030_FW_PRE "iwlwifi-2030-"
  62 #define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE __stringify(api) ".ucode"
  63
  64 #define IWL2000_FW_PRE "iwlwifi-2000-"
  65 #define IWL2000_MODULE_FIRMWARE(api) IWL2000_FW_PRE __stringify(api) ".ucode"
  66
  67 #define IWL105_FW_PRE "iwlwifi-105-"
  68 #define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE __stringify(api) ".ucode"
  69
  70 #define IWL135_FW_PRE "iwlwifi-135-"
  71 #define IWL135_MODULE_FIRMWARE(api) IWL135_FW_PRE #api ".ucode"
  72
  73 static void iwl2000_set_ct_threshold(struct iwl_priv *priv)
  74 {
  75         /* want Celsius */
  76         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
  77         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  78 }
  79
  80 /* NIC configuration for 2000 series */
  81 static void iwl2000_nic_config(struct iwl_priv *priv)
  82 {
  83         iwl_rf_config(priv);
  84
  85         if (priv->cfg->iq_invert)
  86                 iwl_set_bit(priv, CSR_GP_DRIVER_REG,
  87                             CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER);
  88
  89         if (priv->cfg->disable_otp_refresh)
  90                 iwl_write_prph(priv, APMG_ANALOG_SVR_REG, 0x80000010);
  91 }
  92
  93 static struct iwl_sensitivity_ranges iwl2000_sensitivity = {
  94         .min_nrg_cck = 97,
  95         .max_nrg_cck = 0, /* not used, set to 0 */
  96         .auto_corr_min_ofdm = 80,
  97         .auto_corr_min_ofdm_mrc = 128,
  98         .auto_corr_min_ofdm_x1 = 105,
  99         .auto_corr_min_ofdm_mrc_x1 = 192,
 100
 101         .auto_corr_max_ofdm = 145,
 102         .auto_corr_max_ofdm_mrc = 232,
 103         .auto_corr_max_ofdm_x1 = 110,
 104         .auto_corr_max_ofdm_mrc_x1 = 232,
 105
 106         .auto_corr_min_cck = 125,
 107         .auto_corr_max_cck = 175,
 108         .auto_corr_min_cck_mrc = 160,
 109         .auto_corr_max_cck_mrc = 310,
 110         .nrg_th_cck = 97,
 111         .nrg_th_ofdm = 100,
 112
 113         .barker_corr_th_min = 190,
 114         .barker_corr_th_min_mrc = 390,
 115         .nrg_th_cca = 62,
 116 };
 117
 118 static int iwl2000_hw_set_hw_params(struct iwl_priv *priv)
 119 {
 120         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
 121             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
 122                 priv->cfg->base_params->num_of_queues =
 123                         iwlagn_mod_params.num_of_queues;
 124
 125         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
 126         priv->hw_params.scd_bc_tbls_size =
 127                 priv->cfg->base_params->num_of_queues *
 128                 sizeof(struct iwlagn_scd_bc_tbl);
 129         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 130         priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
 131         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
 132
 133         priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
 134         priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
 135
 136         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 137                                         BIT(IEEE80211_BAND_5GHZ);
 138
 139         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 140         if (priv->cfg->rx_with_siso_diversity)
 141                 priv->hw_params.rx_chains_num = 1;
 142         else
 143                 priv->hw_params.rx_chains_num =
 144                         num_of_ant(priv->cfg->valid_rx_ant);
 145         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
 146         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 147
 148         iwl2000_set_ct_threshold(priv);
 149
 150         /* Set initial sensitivity parameters */
 151         /* Set initial calibration set */
 152         priv->hw_params.sens = &iwl2000_sensitivity;
 153         priv->hw_params.calib_init_cfg =
 154                 BIT(IWL_CALIB_XTAL)             |
 155                 BIT(IWL_CALIB_LO)               |
 156                 BIT(IWL_CALIB_TX_IQ)            |
 157                 BIT(IWL_CALIB_BASE_BAND);
 158         if (priv->cfg->need_dc_calib)
 159                 priv->hw_params.calib_rt_cfg |= BIT(IWL_CALIB_CFG_DC_IDX);
 160         if (priv->cfg->need_temp_offset_calib)
 161                 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_TEMP_OFFSET);
 162
 163         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
 164
 165         return 0;
 166 }
 167
 168 static struct iwl_lib_ops iwl2000_lib = {
 169         .set_hw_params = iwl2000_hw_set_hw_params,
 170         .rx_handler_setup = iwlagn_rx_handler_setup,
 171         .setup_deferred_work = iwlagn_bt_setup_deferred_work,
 172         .cancel_deferred_work = iwlagn_bt_cancel_deferred_work,
 173         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
 174         .update_chain_flags = iwl_update_chain_flags,
 175         .apm_ops = {
 176                 .init = iwl_apm_init,
 177                 .config = iwl2000_nic_config,
 178         },
 179         .eeprom_ops = {
 180                 .regulatory_bands = {
 181                         EEPROM_REG_BAND_1_CHANNELS,
 182                         EEPROM_REG_BAND_2_CHANNELS,
 183                         EEPROM_REG_BAND_3_CHANNELS,
 184                         EEPROM_REG_BAND_4_CHANNELS,
 185                         EEPROM_REG_BAND_5_CHANNELS,
 186                         EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
 187                         EEPROM_REGULATORY_BAND_NO_HT40,
 188                 },
 189                 .query_addr = iwlagn_eeprom_query_addr,
 190                 .update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
 191         },
 192         .temp_ops = {
 193                 .temperature = iwlagn_temperature,
 194         },
 195 };
 196
 197 static const struct iwl_ops iwl2000_ops = {
 198         .lib = &iwl2000_lib,
 199         .utils = &iwlagn_hcmd_utils,
 200 };
 201
 202 static const struct iwl_ops iwl2030_ops = {
 203         .lib = &iwl2000_lib,
 204         .utils = &iwlagn_hcmd_utils,
 205 };
 206
 207 static const struct iwl_ops iwl105_ops = {
 208         .lib = &iwl2000_lib,
 209         .utils = &iwlagn_hcmd_utils,
 210 };
 211
 212 static const struct iwl_ops iwl135_ops = {
 213         .lib = &iwl2000_lib,
 214         .utils = &iwlagn_hcmd_utils,
 215 };
 216
 217 static struct iwl_base_params iwl2000_base_params = {
 218         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 219         .num_of_queues = IWLAGN_NUM_QUEUES,
 220         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 221         .pll_cfg_val = 0,
 222         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 223         .shadow_ram_support = true,
 224         .led_compensation = 51,
 225         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 226         .adv_thermal_throttle = true,
 227         .support_ct_kill_exit = true,
 228         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 229         .chain_noise_scale = 1000,
 230         .wd_timeout = IWL_DEF_WD_TIMEOUT,
 231         .max_event_log_size = 512,
 232         .shadow_reg_enable = true,
 233 };
 234
 235
 236 static struct iwl_base_params iwl2030_base_params = {
 237         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 238         .num_of_queues = IWLAGN_NUM_QUEUES,
 239         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 240         .pll_cfg_val = 0,
 241         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 242         .shadow_ram_support = true,
 243         .led_compensation = 57,
 244         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 245         .adv_thermal_throttle = true,
 246         .support_ct_kill_exit = true,
 247         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 248         .chain_noise_scale = 1000,
 249         .wd_timeout = IWL_LONG_WD_TIMEOUT,
 250         .max_event_log_size = 512,
 251         .shadow_reg_enable = true,
 252 };
 253
 254 static struct iwl_ht_params iwl2000_ht_params = {
 255         .ht_greenfield_support = true,
 256         .use_rts_for_aggregation = true, /* use rts/cts protection */
 257 };
 258
 259 static struct iwl_bt_params iwl2030_bt_params = {
 260         /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
 261         .advanced_bt_coexist = true,
 262         .agg_time_limit = BT_AGG_THRESHOLD_DEF,
 263         .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
 264         .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
 265         .bt_sco_disable = true,
 266         .bt_session_2 = true,
 267 };
 268
 269 #define IWL_DEVICE_2000                                         \
 270         .fw_name_pre = IWL2000_FW_PRE,                          \
 271         .ucode_api_max = IWL2000_UCODE_API_MAX,                 \
 272         .ucode_api_min = IWL2000_UCODE_API_MIN,                 \
 273         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 274         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 275         .ops = &iwl2000_ops,                                    \
 276         .base_params = &iwl2000_base_params,                    \
 277         .need_dc_calib = true,                                  \
 278         .need_temp_offset_calib = true,                         \
 279         .led_mode = IWL_LED_RF_STATE,                           \
 280         .iq_invert = true,                                      \
 281         .disable_otp_refresh = true                             \
 282
 283 struct iwl_cfg iwl2000_2bgn_cfg = {
 284         .name = "2000 Series 2x2 BGN",
 285         IWL_DEVICE_2000,
 286         .ht_params = &iwl2000_ht_params,
 287 };
 288
 289 struct iwl_cfg iwl2000_2bg_cfg = {
 290         .name = "2000 Series 2x2 BG",
 291         IWL_DEVICE_2000,
 292 };
 293
 294 #define IWL_DEVICE_2030                                         \
 295         .fw_name_pre = IWL2030_FW_PRE,                          \
 296         .ucode_api_max = IWL2030_UCODE_API_MAX,                 \
 297         .ucode_api_min = IWL2030_UCODE_API_MIN,                 \
 298         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 299         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 300         .ops = &iwl2030_ops,                                    \
 301         .base_params = &iwl2030_base_params,                    \
 302         .bt_params = &iwl2030_bt_params,                        \
 303         .need_dc_calib = true,                                  \
 304         .need_temp_offset_calib = true,                         \
 305         .led_mode = IWL_LED_RF_STATE,                           \
 306         .adv_pm = true,                                         \
 307         .iq_invert = true                                       \
 308
 309 struct iwl_cfg iwl2030_2bgn_cfg = {
 310         .name = "2000 Series 2x2 BGN/BT",
 311         IWL_DEVICE_2030,
 312         .ht_params = &iwl2000_ht_params,
 313 };
 314
 315 struct iwl_cfg iwl2030_2bg_cfg = {
 316         .name = "2000 Series 2x2 BG/BT",
 317         IWL_DEVICE_2030,
 318 };
 319
 320 #define IWL_DEVICE_105                                          \
 321         .fw_name_pre = IWL105_FW_PRE,                           \
 322         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
 323         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
 324         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 325         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 326         .ops = &iwl105_ops,                                     \
 327         .base_params = &iwl2000_base_params,                    \
 328         .need_dc_calib = true,                                  \
 329         .need_temp_offset_calib = true,                         \
 330         .led_mode = IWL_LED_RF_STATE,                           \
 331         .adv_pm = true,                                         \
 332         .rx_with_siso_diversity = true                          \
 333
 334 struct iwl_cfg iwl105_bg_cfg = {
 335         .name = "105 Series 1x1 BG",
 336         IWL_DEVICE_105,
 337 };
 338
 339 struct iwl_cfg iwl105_bgn_cfg = {
 340         .name = "105 Series 1x1 BGN",
 341         IWL_DEVICE_105,
 342         .ht_params = &iwl2000_ht_params,
 343 };
 344
 345 #define IWL_DEVICE_135                                          \
 346         .fw_name_pre = IWL135_FW_PRE,                           \
 347         .ucode_api_max = IWL135_UCODE_API_MAX,                  \
 348         .ucode_api_min = IWL135_UCODE_API_MIN,                  \
 349         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 350         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 351         .ops = &iwl135_ops,                                     \
 352         .base_params = &iwl2030_base_params,                    \
 353         .bt_params = &iwl2030_bt_params,                        \
 354         .need_dc_calib = true,                                  \
 355         .need_temp_offset_calib = true,                         \
 356         .led_mode = IWL_LED_RF_STATE,                           \
 357         .adv_pm = true,                                         \
 358         .rx_with_siso_diversity = true                          \
 359
 360 struct iwl_cfg iwl135_bg_cfg = {
 361         .name = "135 Series 1x1 BG/BT",
 362         IWL_DEVICE_135,
 363 };
 364
 365 struct iwl_cfg iwl135_bgn_cfg = {
 366         .name = "135 Series 1x1 BGN/BT",
 367         IWL_DEVICE_135,
 368         .ht_params = &iwl2000_ht_params,
 369 };
 370
 371 MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX));
 372 MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX));
 373 MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX));
 374 MODULE_FIRMWARE(IWL135_MODULE_FIRMWARE(IWL135_UCODE_API_MAX));