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 <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 IWL2030_UCODE_API_MAX 6
  49 #define IWL2000_UCODE_API_MAX 6
  50 #define IWL105_UCODE_API_MAX 6
  51 #define IWL135_UCODE_API_MAX 6
  52
  53 /* Oldest version we won't warn about */
  54 #define IWL2030_UCODE_API_OK 6
  55 #define IWL2000_UCODE_API_OK 6
  56 #define IWL105_UCODE_API_OK 6
  57 #define IWL135_UCODE_API_OK 6
  58
  59 /* Lowest firmware API version supported */
  60 #define IWL2030_UCODE_API_MIN 5
  61 #define IWL2000_UCODE_API_MIN 5
  62 #define IWL105_UCODE_API_MIN 5
  63 #define IWL135_UCODE_API_MIN 5
  64
  65 #define IWL2030_FW_PRE "iwlwifi-2030-"
  66 #define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE __stringify(api) ".ucode"
  67
  68 #define IWL2000_FW_PRE "iwlwifi-2000-"
  69 #define IWL2000_MODULE_FIRMWARE(api) IWL2000_FW_PRE __stringify(api) ".ucode"
  70
  71 #define IWL105_FW_PRE "iwlwifi-105-"
  72 #define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE __stringify(api) ".ucode"
  73
  74 #define IWL135_FW_PRE "iwlwifi-135-"
  75 #define IWL135_MODULE_FIRMWARE(api) IWL135_FW_PRE __stringify(api) ".ucode"
  76
  77 static void iwl2000_set_ct_threshold(struct iwl_priv *priv)
  78 {
  79         /* want Celsius */
  80         hw_params(priv).ct_kill_threshold = CT_KILL_THRESHOLD;
  81         hw_params(priv).ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  82 }
  83
  84 /* NIC configuration for 2000 series */
  85 static void iwl2000_nic_config(struct iwl_priv *priv)
  86 {
  87         iwl_rf_config(priv);
  88
  89         if (priv->cfg->iq_invert)
  90                 iwl_set_bit(bus(priv), CSR_GP_DRIVER_REG,
  91                             CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER);
  92 }
  93
  94 static struct iwl_sensitivity_ranges iwl2000_sensitivity = {
  95         .min_nrg_cck = 97,
  96         .max_nrg_cck = 0, /* not used, set to 0 */
  97         .auto_corr_min_ofdm = 80,
  98         .auto_corr_min_ofdm_mrc = 128,
  99         .auto_corr_min_ofdm_x1 = 105,
 100         .auto_corr_min_ofdm_mrc_x1 = 192,
 101
 102         .auto_corr_max_ofdm = 145,
 103         .auto_corr_max_ofdm_mrc = 232,
 104         .auto_corr_max_ofdm_x1 = 110,
 105         .auto_corr_max_ofdm_mrc_x1 = 232,
 106
 107         .auto_corr_min_cck = 125,
 108         .auto_corr_max_cck = 175,
 109         .auto_corr_min_cck_mrc = 160,
 110         .auto_corr_max_cck_mrc = 310,
 111         .nrg_th_cck = 97,
 112         .nrg_th_ofdm = 100,
 113
 114         .barker_corr_th_min = 190,
 115         .barker_corr_th_min_mrc = 390,
 116         .nrg_th_cca = 62,
 117 };
 118
 119 static int iwl2000_hw_set_hw_params(struct iwl_priv *priv)
 120 {
 121         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
 122             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
 123                 priv->cfg->base_params->num_of_queues =
 124                         iwlagn_mod_params.num_of_queues;
 125
 126         hw_params(priv).max_txq_num = priv->cfg->base_params->num_of_queues;
 127         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
 128
 129         hw_params(priv).max_data_size = IWL60_RTC_DATA_SIZE;
 130         hw_params(priv).max_inst_size = IWL60_RTC_INST_SIZE;
 131
 132         hw_params(priv).ht40_channel =  BIT(IEEE80211_BAND_2GHZ);
 133
 134         hw_params(priv).tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 135         if (priv->cfg->rx_with_siso_diversity)
 136                 hw_params(priv).rx_chains_num = 1;
 137         else
 138                 hw_params(priv).rx_chains_num =
 139                         num_of_ant(priv->cfg->valid_rx_ant);
 140         hw_params(priv).valid_tx_ant = priv->cfg->valid_tx_ant;
 141         hw_params(priv).valid_rx_ant = priv->cfg->valid_rx_ant;
 142
 143         iwl2000_set_ct_threshold(priv);
 144
 145         /* Set initial sensitivity parameters */
 146         /* Set initial calibration set */
 147         hw_params(priv).sens = &iwl2000_sensitivity;
 148         hw_params(priv).calib_init_cfg =
 149                 BIT(IWL_CALIB_XTAL)             |
 150                 BIT(IWL_CALIB_LO)               |
 151                 BIT(IWL_CALIB_TX_IQ)            |
 152                 BIT(IWL_CALIB_BASE_BAND);
 153         if (priv->cfg->need_dc_calib)
 154                 hw_params(priv).calib_rt_cfg |= IWL_CALIB_CFG_DC_IDX;
 155         if (priv->cfg->need_temp_offset_calib)
 156                 hw_params(priv).calib_init_cfg |= BIT(IWL_CALIB_TEMP_OFFSET);
 157
 158         return 0;
 159 }
 160
 161 static struct iwl_lib_ops iwl2000_lib = {
 162         .set_hw_params = iwl2000_hw_set_hw_params,
 163         .nic_config = iwl2000_nic_config,
 164         .eeprom_ops = {
 165                 .regulatory_bands = {
 166                         EEPROM_REG_BAND_1_CHANNELS,
 167                         EEPROM_REG_BAND_2_CHANNELS,
 168                         EEPROM_REG_BAND_3_CHANNELS,
 169                         EEPROM_REG_BAND_4_CHANNELS,
 170                         EEPROM_REG_BAND_5_CHANNELS,
 171                         EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
 172                         EEPROM_REGULATORY_BAND_NO_HT40,
 173                 },
 174                 .update_enhanced_txpower = iwl_eeprom_enhanced_txpower,
 175         },
 176         .temperature = iwlagn_temperature,
 177 };
 178
 179 static struct iwl_lib_ops iwl2030_lib = {
 180         .set_hw_params = iwl2000_hw_set_hw_params,
 181         .bt_rx_handler_setup = iwlagn_bt_rx_handler_setup,
 182         .bt_setup_deferred_work = iwlagn_bt_setup_deferred_work,
 183         .cancel_deferred_work = iwlagn_bt_cancel_deferred_work,
 184         .nic_config = iwl2000_nic_config,
 185         .eeprom_ops = {
 186                 .regulatory_bands = {
 187                         EEPROM_REG_BAND_1_CHANNELS,
 188                         EEPROM_REG_BAND_2_CHANNELS,
 189                         EEPROM_REG_BAND_3_CHANNELS,
 190                         EEPROM_REG_BAND_4_CHANNELS,
 191                         EEPROM_REG_BAND_5_CHANNELS,
 192                         EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
 193                         EEPROM_REGULATORY_BAND_NO_HT40,
 194                 },
 195                 .update_enhanced_txpower = iwl_eeprom_enhanced_txpower,
 196         },
 197         .temperature = iwlagn_temperature,
 198 };
 199
 200 static struct iwl_base_params iwl2000_base_params = {
 201         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 202         .num_of_queues = IWLAGN_NUM_QUEUES,
 203         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 204         .pll_cfg_val = 0,
 205         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 206         .shadow_ram_support = true,
 207         .led_compensation = 51,
 208         .adv_thermal_throttle = true,
 209         .support_ct_kill_exit = true,
 210         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 211         .chain_noise_scale = 1000,
 212         .wd_timeout = IWL_DEF_WD_TIMEOUT,
 213         .max_event_log_size = 512,
 214         .shadow_reg_enable = false, /* TODO: fix bugs using this feature */
 215         .hd_v2 = true,
 216 };
 217
 218
 219 static struct iwl_base_params iwl2030_base_params = {
 220         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 221         .num_of_queues = IWLAGN_NUM_QUEUES,
 222         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 223         .pll_cfg_val = 0,
 224         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 225         .shadow_ram_support = true,
 226         .led_compensation = 57,
 227         .adv_thermal_throttle = true,
 228         .support_ct_kill_exit = true,
 229         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 230         .chain_noise_scale = 1000,
 231         .wd_timeout = IWL_LONG_WD_TIMEOUT,
 232         .max_event_log_size = 512,
 233         .shadow_reg_enable = false, /* TODO: fix bugs using this feature */
 234         .hd_v2 = true,
 235 };
 236
 237 static struct iwl_ht_params iwl2000_ht_params = {
 238         .ht_greenfield_support = true,
 239         .use_rts_for_aggregation = true, /* use rts/cts protection */
 240 };
 241
 242 static struct iwl_bt_params iwl2030_bt_params = {
 243         /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
 244         .advanced_bt_coexist = true,
 245         .agg_time_limit = BT_AGG_THRESHOLD_DEF,
 246         .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
 247         .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
 248         .bt_sco_disable = true,
 249         .bt_session_2 = true,
 250 };
 251
 252 #define IWL_DEVICE_2000                                         \
 253         .fw_name_pre = IWL2000_FW_PRE,                          \
 254         .ucode_api_max = IWL2000_UCODE_API_MAX,                 \
 255         .ucode_api_ok = IWL2000_UCODE_API_OK,                   \
 256         .ucode_api_min = IWL2000_UCODE_API_MIN,                 \
 257         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 258         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 259         .lib = &iwl2000_lib,                                    \
 260         .base_params = &iwl2000_base_params,                    \
 261         .need_dc_calib = true,                                  \
 262         .need_temp_offset_calib = true,                         \
 263         .temp_offset_v2 = true,                                 \
 264         .led_mode = IWL_LED_RF_STATE,                           \
 265         .iq_invert = true                                       \
 266
 267 struct iwl_cfg iwl2000_2bgn_cfg = {
 268         .name = "2000 Series 2x2 BGN",
 269         IWL_DEVICE_2000,
 270         .ht_params = &iwl2000_ht_params,
 271 };
 272
 273 struct iwl_cfg iwl2000_2bg_cfg = {
 274         .name = "2000 Series 2x2 BG",
 275         IWL_DEVICE_2000,
 276 };
 277
 278 struct iwl_cfg iwl2000_2bgn_d_cfg = {
 279         .name = "2000D Series 2x2 BGN",
 280         IWL_DEVICE_2000,
 281         .ht_params = &iwl2000_ht_params,
 282 };
 283
 284 #define IWL_DEVICE_2030                                         \
 285         .fw_name_pre = IWL2030_FW_PRE,                          \
 286         .ucode_api_max = IWL2030_UCODE_API_MAX,                 \
 287         .ucode_api_ok = IWL2030_UCODE_API_OK,                   \
 288         .ucode_api_min = IWL2030_UCODE_API_MIN,                 \
 289         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 290         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 291         .lib = &iwl2030_lib,                                    \
 292         .base_params = &iwl2030_base_params,                    \
 293         .bt_params = &iwl2030_bt_params,                        \
 294         .need_dc_calib = true,                                  \
 295         .need_temp_offset_calib = true,                         \
 296         .temp_offset_v2 = true,                                 \
 297         .led_mode = IWL_LED_RF_STATE,                           \
 298         .adv_pm = true,                                         \
 299         .iq_invert = true                                       \
 300
 301 struct iwl_cfg iwl2030_2bgn_cfg = {
 302         .name = "2000 Series 2x2 BGN/BT",
 303         IWL_DEVICE_2030,
 304         .ht_params = &iwl2000_ht_params,
 305 };
 306
 307 struct iwl_cfg iwl2030_2bg_cfg = {
 308         .name = "2000 Series 2x2 BG/BT",
 309         IWL_DEVICE_2030,
 310 };
 311
 312 #define IWL_DEVICE_105                                          \
 313         .fw_name_pre = IWL105_FW_PRE,                           \
 314         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
 315         .ucode_api_ok = IWL105_UCODE_API_OK,                    \
 316         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
 317         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 318         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 319         .lib = &iwl2000_lib,                                    \
 320         .base_params = &iwl2000_base_params,                    \
 321         .need_dc_calib = true,                                  \
 322         .need_temp_offset_calib = true,                         \
 323         .temp_offset_v2 = true,                                 \
 324         .led_mode = IWL_LED_RF_STATE,                           \
 325         .adv_pm = true,                                         \
 326         .rx_with_siso_diversity = true,                         \
 327         .iq_invert = true                                       \
 328
 329 struct iwl_cfg iwl105_bg_cfg = {
 330         .name = "105 Series 1x1 BG",
 331         IWL_DEVICE_105,
 332 };
 333
 334 struct iwl_cfg iwl105_bgn_cfg = {
 335         .name = "105 Series 1x1 BGN",
 336         IWL_DEVICE_105,
 337         .ht_params = &iwl2000_ht_params,
 338 };
 339
 340 struct iwl_cfg iwl105_bgn_d_cfg = {
 341         .name = "105D Series 1x1 BGN",
 342         IWL_DEVICE_105,
 343         .ht_params = &iwl2000_ht_params,
 344 };
 345
 346 #define IWL_DEVICE_135                                          \
 347         .fw_name_pre = IWL135_FW_PRE,                           \
 348         .ucode_api_max = IWL135_UCODE_API_MAX,                  \
 349         .ucode_api_ok = IWL135_UCODE_API_OK,                    \
 350         .ucode_api_min = IWL135_UCODE_API_MIN,                  \
 351         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 352         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 353         .lib = &iwl2030_lib,                                    \
 354         .base_params = &iwl2030_base_params,                    \
 355         .bt_params = &iwl2030_bt_params,                        \
 356         .need_dc_calib = true,                                  \
 357         .need_temp_offset_calib = true,                         \
 358         .temp_offset_v2 = true,                                 \
 359         .led_mode = IWL_LED_RF_STATE,                           \
 360         .adv_pm = true,                                         \
 361         .rx_with_siso_diversity = true,                         \
 362         .iq_invert = true                                       \
 363
 364 struct iwl_cfg iwl135_bg_cfg = {
 365         .name = "135 Series 1x1 BG/BT",
 366         IWL_DEVICE_135,
 367 };
 368
 369 struct iwl_cfg iwl135_bgn_cfg = {
 370         .name = "135 Series 1x1 BGN/BT",
 371         IWL_DEVICE_135,
 372         .ht_params = &iwl2000_ht_params,
 373 };
 374
 375 MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_OK));
 376 MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_OK));
 377 MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_OK));
 378 MODULE_FIRMWARE(IWL135_MODULE_FIRMWARE(IWL135_UCODE_API_OK));