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/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 #include "iwl-6000-hw.h"
  50
  51 /* Highest firmware API version supported */
  52 #define IWL2030_UCODE_API_MAX 5
  53 #define IWL2000_UCODE_API_MAX 5
  54 #define IWL105_UCODE_API_MAX 5
  55
  56 /* Lowest firmware API version supported */
  57 #define IWL2030_UCODE_API_MIN 5
  58 #define IWL2000_UCODE_API_MIN 5
  59 #define IWL105_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 static void iwl2000_set_ct_threshold(struct iwl_priv *priv)
  71 {
  72         /* want Celsius */
  73         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
  74         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  75 }
  76
  77 /* NIC configuration for 2000 series */
  78 static void iwl2000_nic_config(struct iwl_priv *priv)
  79 {
  80         u16 radio_cfg;
  81
  82         radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
  83
  84         /* write radio config values to register */
  85         if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) <= EEPROM_RF_CONFIG_TYPE_MAX)
  86         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
  87                         EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
  88                         EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
  89                         EEPROM_RF_CFG_DASH_MSK(radio_cfg));
  90
  91         /* set CSR_HW_CONFIG_REG for uCode use */
  92         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
  93                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
  94                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
  95
  96         if (priv->cfg->iq_invert)
  97                 iwl_set_bit(priv, CSR_GP_DRIVER_REG,
  98                             CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER);
  99
 100         if (priv->cfg->disable_otp_refresh)
 101                 iwl_write_prph(priv, APMG_ANALOG_SVR_REG, 0x80000010);
 102 }
 103
 104 static struct iwl_sensitivity_ranges iwl2000_sensitivity = {
 105         .min_nrg_cck = 97,
 106         .max_nrg_cck = 0, /* not used, set to 0 */
 107         .auto_corr_min_ofdm = 80,
 108         .auto_corr_min_ofdm_mrc = 128,
 109         .auto_corr_min_ofdm_x1 = 105,
 110         .auto_corr_min_ofdm_mrc_x1 = 192,
 111
 112         .auto_corr_max_ofdm = 145,
 113         .auto_corr_max_ofdm_mrc = 232,
 114         .auto_corr_max_ofdm_x1 = 110,
 115         .auto_corr_max_ofdm_mrc_x1 = 232,
 116
 117         .auto_corr_min_cck = 125,
 118         .auto_corr_max_cck = 175,
 119         .auto_corr_min_cck_mrc = 160,
 120         .auto_corr_max_cck_mrc = 310,
 121         .nrg_th_cck = 97,
 122         .nrg_th_ofdm = 100,
 123
 124         .barker_corr_th_min = 190,
 125         .barker_corr_th_min_mrc = 390,
 126         .nrg_th_cca = 62,
 127 };
 128
 129 static int iwl2000_hw_set_hw_params(struct iwl_priv *priv)
 130 {
 131         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
 132             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
 133                 priv->cfg->base_params->num_of_queues =
 134                         iwlagn_mod_params.num_of_queues;
 135
 136         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
 137         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
 138         priv->hw_params.scd_bc_tbls_size =
 139                 priv->cfg->base_params->num_of_queues *
 140                 sizeof(struct iwlagn_scd_bc_tbl);
 141         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 142         priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
 143         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
 144
 145         priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
 146         priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
 147
 148         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 149                                         BIT(IEEE80211_BAND_5GHZ);
 150         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 151
 152         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 153         if (priv->cfg->rx_with_siso_diversity)
 154                 priv->hw_params.rx_chains_num = 1;
 155         else
 156                 priv->hw_params.rx_chains_num =
 157                         num_of_ant(priv->cfg->valid_rx_ant);
 158         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
 159         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 160
 161         iwl2000_set_ct_threshold(priv);
 162
 163         /* Set initial sensitivity parameters */
 164         /* Set initial calibration set */
 165         priv->hw_params.sens = &iwl2000_sensitivity;
 166         priv->hw_params.calib_init_cfg =
 167                 BIT(IWL_CALIB_XTAL)             |
 168                 BIT(IWL_CALIB_LO)               |
 169                 BIT(IWL_CALIB_TX_IQ)            |
 170                 BIT(IWL_CALIB_BASE_BAND);
 171         if (priv->cfg->need_dc_calib)
 172                 priv->hw_params.calib_rt_cfg |= BIT(IWL_CALIB_CFG_DC_IDX);
 173         if (priv->cfg->need_temp_offset_calib)
 174                 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_TEMP_OFFSET);
 175
 176         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
 177
 178         return 0;
 179 }
 180
 181 static struct iwl_lib_ops iwl2000_lib = {
 182         .set_hw_params = iwl2000_hw_set_hw_params,
 183         .rx_handler_setup = iwlagn_rx_handler_setup,
 184         .setup_deferred_work = iwlagn_bt_setup_deferred_work,
 185         .cancel_deferred_work = iwlagn_bt_cancel_deferred_work,
 186         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
 187         .send_tx_power = iwlagn_send_tx_power,
 188         .update_chain_flags = iwl_update_chain_flags,
 189         .apm_ops = {
 190                 .init = iwl_apm_init,
 191                 .config = iwl2000_nic_config,
 192         },
 193         .eeprom_ops = {
 194                 .regulatory_bands = {
 195                         EEPROM_REG_BAND_1_CHANNELS,
 196                         EEPROM_REG_BAND_2_CHANNELS,
 197                         EEPROM_REG_BAND_3_CHANNELS,
 198                         EEPROM_REG_BAND_4_CHANNELS,
 199                         EEPROM_REG_BAND_5_CHANNELS,
 200                         EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
 201                         EEPROM_REGULATORY_BAND_NO_HT40,
 202                 },
 203                 .query_addr = iwlagn_eeprom_query_addr,
 204                 .update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
 205         },
 206         .temp_ops = {
 207                 .temperature = iwlagn_temperature,
 208         },
 209         .txfifo_flush = iwlagn_txfifo_flush,
 210         .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
 211 };
 212
 213 static const struct iwl_ops iwl2000_ops = {
 214         .lib = &iwl2000_lib,
 215         .hcmd = &iwlagn_hcmd,
 216         .utils = &iwlagn_hcmd_utils,
 217 };
 218
 219 static const struct iwl_ops iwl2030_ops = {
 220         .lib = &iwl2000_lib,
 221         .hcmd = &iwlagn_bt_hcmd,
 222         .utils = &iwlagn_hcmd_utils,
 223 };
 224
 225 static const struct iwl_ops iwl105_ops = {
 226         .lib = &iwl2000_lib,
 227         .hcmd = &iwlagn_hcmd,
 228         .utils = &iwlagn_hcmd_utils,
 229 };
 230
 231 static const struct iwl_ops iwl135_ops = {
 232         .lib = &iwl2000_lib,
 233         .hcmd = &iwlagn_bt_hcmd,
 234         .utils = &iwlagn_hcmd_utils,
 235 };
 236
 237 static struct iwl_base_params iwl2000_base_params = {
 238         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 239         .num_of_queues = IWLAGN_NUM_QUEUES,
 240         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 241         .pll_cfg_val = 0,
 242         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 243         .shadow_ram_support = true,
 244         .led_compensation = 51,
 245         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 246         .adv_thermal_throttle = true,
 247         .support_ct_kill_exit = true,
 248         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 249         .chain_noise_scale = 1000,
 250         .wd_timeout = IWL_DEF_WD_TIMEOUT,
 251         .max_event_log_size = 512,
 252         .shadow_reg_enable = true,
 253 };
 254
 255
 256 static struct iwl_base_params iwl2030_base_params = {
 257         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 258         .num_of_queues = IWLAGN_NUM_QUEUES,
 259         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 260         .pll_cfg_val = 0,
 261         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 262         .shadow_ram_support = true,
 263         .led_compensation = 57,
 264         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 265         .adv_thermal_throttle = true,
 266         .support_ct_kill_exit = true,
 267         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 268         .chain_noise_scale = 1000,
 269         .wd_timeout = IWL_LONG_WD_TIMEOUT,
 270         .max_event_log_size = 512,
 271         .shadow_reg_enable = true,
 272 };
 273
 274 static struct iwl_ht_params iwl2000_ht_params = {
 275         .ht_greenfield_support = true,
 276         .use_rts_for_aggregation = true, /* use rts/cts protection */
 277 };
 278
 279 static struct iwl_bt_params iwl2030_bt_params = {
 280         /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
 281         .advanced_bt_coexist = true,
 282         .agg_time_limit = BT_AGG_THRESHOLD_DEF,
 283         .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
 284         .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
 285         .bt_sco_disable = true,
 286         .bt_session_2 = true,
 287 };
 288
 289 #define IWL_DEVICE_2000                                         \
 290         .fw_name_pre = IWL2000_FW_PRE,                          \
 291         .ucode_api_max = IWL2000_UCODE_API_MAX,                 \
 292         .ucode_api_min = IWL2000_UCODE_API_MIN,                 \
 293         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 294         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 295         .ops = &iwl2000_ops,                                    \
 296         .base_params = &iwl2000_base_params,                    \
 297         .need_dc_calib = true,                                  \
 298         .need_temp_offset_calib = true,                         \
 299         .led_mode = IWL_LED_RF_STATE,                           \
 300         .iq_invert = true,                                      \
 301         .disable_otp_refresh = true                             \
 302
 303 struct iwl_cfg iwl2000_2bgn_cfg = {
 304         .name = "2000 Series 2x2 BGN",
 305         IWL_DEVICE_2000,
 306         .ht_params = &iwl2000_ht_params,
 307 };
 308
 309 struct iwl_cfg iwl2000_2bg_cfg = {
 310         .name = "2000 Series 2x2 BG",
 311         IWL_DEVICE_2000,
 312 };
 313
 314 #define IWL_DEVICE_2030                                         \
 315         .fw_name_pre = IWL2030_FW_PRE,                          \
 316         .ucode_api_max = IWL2030_UCODE_API_MAX,                 \
 317         .ucode_api_min = IWL2030_UCODE_API_MIN,                 \
 318         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 319         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 320         .ops = &iwl2030_ops,                                    \
 321         .base_params = &iwl2030_base_params,                    \
 322         .bt_params = &iwl2030_bt_params,                        \
 323         .need_dc_calib = true,                                  \
 324         .need_temp_offset_calib = true,                         \
 325         .led_mode = IWL_LED_RF_STATE,                           \
 326         .adv_pm = true,                                         \
 327         .iq_invert = true                                       \
 328
 329 struct iwl_cfg iwl2030_2bgn_cfg = {
 330         .name = "2000 Series 2x2 BGN/BT",
 331         IWL_DEVICE_2030,
 332         .ht_params = &iwl2000_ht_params,
 333 };
 334
 335 struct iwl_cfg iwl2030_2bg_cfg = {
 336         .name = "2000 Series 2x2 BG/BT",
 337         IWL_DEVICE_2030,
 338 };
 339
 340 #define IWL_DEVICE_105                                          \
 341         .fw_name_pre = IWL105_FW_PRE,                           \
 342         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
 343         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
 344         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 345         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 346         .ops = &iwl105_ops,                                     \
 347         .base_params = &iwl2000_base_params,                    \
 348         .need_dc_calib = true,                                  \
 349         .need_temp_offset_calib = true,                         \
 350         .led_mode = IWL_LED_RF_STATE,                           \
 351         .adv_pm = true,                                         \
 352         .rx_with_siso_diversity = true                          \
 353
 354 struct iwl_cfg iwl105_bg_cfg = {
 355         .name = "105 Series 1x1 BG",
 356         IWL_DEVICE_105,
 357 };
 358
 359 struct iwl_cfg iwl105_bgn_cfg = {
 360         .name = "105 Series 1x1 BGN",
 361         IWL_DEVICE_105,
 362         .ht_params = &iwl2000_ht_params,
 363 };
 364
 365 #define IWL_DEVICE_135                                          \
 366         .fw_name_pre = IWL105_FW_PRE,                           \
 367         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
 368         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
 369         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
 370         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
 371         .ops = &iwl135_ops,                                     \
 372         .base_params = &iwl2030_base_params,                    \
 373         .bt_params = &iwl2030_bt_params,                        \
 374         .need_dc_calib = true,                                  \
 375         .need_temp_offset_calib = true,                         \
 376         .led_mode = IWL_LED_RF_STATE,                           \
 377         .adv_pm = true,                                         \
 378         .rx_with_siso_diversity = true                          \
 379
 380 struct iwl_cfg iwl135_bg_cfg = {
 381         .name = "105 Series 1x1 BG/BT",
 382         IWL_DEVICE_135,
 383 };
 384
 385 struct iwl_cfg iwl135_bgn_cfg = {
 386         .name = "105 Series 1x1 BGN/BT",
 387         IWL_DEVICE_135,
 388         .ht_params = &iwl2000_ht_params,
 389 };
 390
 391 MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX));
 392 MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX));
 393 MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX));