iwl-5000.c revision 5c3d29fc0d083e674c09407f1bc78e9dbf4ae8a5
1/****************************************************************************** 2 * 3 * Copyright(c) 2007 - 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/sched.h> 32#include <linux/skbuff.h> 33#include <linux/netdevice.h> 34#include <linux/wireless.h> 35#include <net/mac80211.h> 36#include <linux/etherdevice.h> 37#include <asm/unaligned.h> 38#include <linux/stringify.h> 39 40#include "iwl-eeprom.h" 41#include "iwl-dev.h" 42#include "iwl-core.h" 43#include "iwl-io.h" 44#include "iwl-sta.h" 45#include "iwl-helpers.h" 46#include "iwl-agn.h" 47#include "iwl-agn-hw.h" 48#include "iwl-5000-hw.h" 49#include "iwl-trans.h" 50 51/* Highest firmware API version supported */ 52#define IWL5000_UCODE_API_MAX 5 53#define IWL5150_UCODE_API_MAX 2 54 55/* Lowest firmware API version supported */ 56#define IWL5000_UCODE_API_MIN 1 57#define IWL5150_UCODE_API_MIN 1 58 59#define IWL5000_FW_PRE "iwlwifi-5000-" 60#define IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE __stringify(api) ".ucode" 61 62#define IWL5150_FW_PRE "iwlwifi-5150-" 63#define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE __stringify(api) ".ucode" 64 65/* NIC configuration for 5000 series */ 66static void iwl5000_nic_config(struct iwl_priv *priv) 67{ 68 unsigned long flags; 69 70 iwl_rf_config(priv); 71 72 spin_lock_irqsave(&priv->lock, flags); 73 74 /* W/A : NIC is stuck in a reset state after Early PCIe power off 75 * (PCIe power is lost before PERST# is asserted), 76 * causing ME FW to lose ownership and not being able to obtain it back. 77 */ 78 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, 79 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 80 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 81 82 83 spin_unlock_irqrestore(&priv->lock, flags); 84} 85 86static struct iwl_sensitivity_ranges iwl5000_sensitivity = { 87 .min_nrg_cck = 95, 88 .max_nrg_cck = 0, /* not used, set to 0 */ 89 .auto_corr_min_ofdm = 90, 90 .auto_corr_min_ofdm_mrc = 170, 91 .auto_corr_min_ofdm_x1 = 120, 92 .auto_corr_min_ofdm_mrc_x1 = 240, 93 94 .auto_corr_max_ofdm = 120, 95 .auto_corr_max_ofdm_mrc = 210, 96 .auto_corr_max_ofdm_x1 = 120, 97 .auto_corr_max_ofdm_mrc_x1 = 240, 98 99 .auto_corr_min_cck = 125, 100 .auto_corr_max_cck = 200, 101 .auto_corr_min_cck_mrc = 170, 102 .auto_corr_max_cck_mrc = 400, 103 .nrg_th_cck = 95, 104 .nrg_th_ofdm = 95, 105 106 .barker_corr_th_min = 190, 107 .barker_corr_th_min_mrc = 390, 108 .nrg_th_cca = 62, 109}; 110 111static struct iwl_sensitivity_ranges iwl5150_sensitivity = { 112 .min_nrg_cck = 95, 113 .max_nrg_cck = 0, /* not used, set to 0 */ 114 .auto_corr_min_ofdm = 90, 115 .auto_corr_min_ofdm_mrc = 170, 116 .auto_corr_min_ofdm_x1 = 105, 117 .auto_corr_min_ofdm_mrc_x1 = 220, 118 119 .auto_corr_max_ofdm = 120, 120 .auto_corr_max_ofdm_mrc = 210, 121 /* max = min for performance bug in 5150 DSP */ 122 .auto_corr_max_ofdm_x1 = 105, 123 .auto_corr_max_ofdm_mrc_x1 = 220, 124 125 .auto_corr_min_cck = 125, 126 .auto_corr_max_cck = 200, 127 .auto_corr_min_cck_mrc = 170, 128 .auto_corr_max_cck_mrc = 400, 129 .nrg_th_cck = 95, 130 .nrg_th_ofdm = 95, 131 132 .barker_corr_th_min = 190, 133 .barker_corr_th_min_mrc = 390, 134 .nrg_th_cca = 62, 135}; 136 137static void iwl5150_set_ct_threshold(struct iwl_priv *priv) 138{ 139 const s32 volt2temp_coef = IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF; 140 s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY) - 141 iwl_temp_calib_to_offset(priv); 142 143 priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef; 144} 145 146static void iwl5000_set_ct_threshold(struct iwl_priv *priv) 147{ 148 /* want Celsius */ 149 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY; 150} 151 152static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) 153{ 154 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 155 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 156 priv->cfg->base_params->num_of_queues = 157 iwlagn_mod_params.num_of_queues; 158 159 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; 160 priv->hw_params.scd_bc_tbls_size = 161 priv->cfg->base_params->num_of_queues * 162 sizeof(struct iwlagn_scd_bc_tbl); 163 priv->hw_params.tfd_size = sizeof(struct iwl_tfd); 164 priv->hw_params.max_stations = IWLAGN_STATION_COUNT; 165 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; 166 167 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE; 168 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE; 169 170 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | 171 BIT(IEEE80211_BAND_5GHZ); 172 173 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); 174 priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); 175 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant; 176 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant; 177 178 iwl5000_set_ct_threshold(priv); 179 180 /* Set initial sensitivity parameters */ 181 /* Set initial calibration set */ 182 priv->hw_params.sens = &iwl5000_sensitivity; 183 priv->hw_params.calib_init_cfg = 184 BIT(IWL_CALIB_XTAL) | 185 BIT(IWL_CALIB_LO) | 186 BIT(IWL_CALIB_TX_IQ) | 187 BIT(IWL_CALIB_TX_IQ_PERD) | 188 BIT(IWL_CALIB_BASE_BAND); 189 190 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS; 191 192 return 0; 193} 194 195static int iwl5150_hw_set_hw_params(struct iwl_priv *priv) 196{ 197 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 198 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 199 priv->cfg->base_params->num_of_queues = 200 iwlagn_mod_params.num_of_queues; 201 202 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; 203 priv->hw_params.scd_bc_tbls_size = 204 priv->cfg->base_params->num_of_queues * 205 sizeof(struct iwlagn_scd_bc_tbl); 206 priv->hw_params.tfd_size = sizeof(struct iwl_tfd); 207 priv->hw_params.max_stations = IWLAGN_STATION_COUNT; 208 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; 209 210 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE; 211 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE; 212 213 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | 214 BIT(IEEE80211_BAND_5GHZ); 215 216 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); 217 priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); 218 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant; 219 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant; 220 221 iwl5150_set_ct_threshold(priv); 222 223 /* Set initial sensitivity parameters */ 224 /* Set initial calibration set */ 225 priv->hw_params.sens = &iwl5150_sensitivity; 226 priv->hw_params.calib_init_cfg = 227 BIT(IWL_CALIB_LO) | 228 BIT(IWL_CALIB_TX_IQ) | 229 BIT(IWL_CALIB_BASE_BAND); 230 if (priv->cfg->need_dc_calib) 231 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC); 232 233 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS; 234 235 return 0; 236} 237 238static void iwl5150_temperature(struct iwl_priv *priv) 239{ 240 u32 vt = 0; 241 s32 offset = iwl_temp_calib_to_offset(priv); 242 243 vt = le32_to_cpu(priv->statistics.common.temperature); 244 vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset; 245 /* now vt hold the temperature in Kelvin */ 246 priv->temperature = KELVIN_TO_CELSIUS(vt); 247 iwl_tt_handler(priv); 248} 249 250static int iwl5000_hw_channel_switch(struct iwl_priv *priv, 251 struct ieee80211_channel_switch *ch_switch) 252{ 253 /* 254 * MULTI-FIXME 255 * See iwl_mac_channel_switch. 256 */ 257 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; 258 struct iwl5000_channel_switch_cmd cmd; 259 const struct iwl_channel_info *ch_info; 260 u32 switch_time_in_usec, ucode_switch_time; 261 u16 ch; 262 u32 tsf_low; 263 u8 switch_count; 264 u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval); 265 struct ieee80211_vif *vif = ctx->vif; 266 struct iwl_host_cmd hcmd = { 267 .id = REPLY_CHANNEL_SWITCH, 268 .len = { sizeof(cmd), }, 269 .flags = CMD_SYNC, 270 .data = { &cmd, }, 271 }; 272 273 cmd.band = priv->band == IEEE80211_BAND_2GHZ; 274 ch = ch_switch->channel->hw_value; 275 IWL_DEBUG_11H(priv, "channel switch from %d to %d\n", 276 ctx->active.channel, ch); 277 cmd.channel = cpu_to_le16(ch); 278 cmd.rxon_flags = ctx->staging.flags; 279 cmd.rxon_filter_flags = ctx->staging.filter_flags; 280 switch_count = ch_switch->count; 281 tsf_low = ch_switch->timestamp & 0x0ffffffff; 282 /* 283 * calculate the ucode channel switch time 284 * adding TSF as one of the factor for when to switch 285 */ 286 if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) { 287 if (switch_count > ((priv->ucode_beacon_time - tsf_low) / 288 beacon_interval)) { 289 switch_count -= (priv->ucode_beacon_time - 290 tsf_low) / beacon_interval; 291 } else 292 switch_count = 0; 293 } 294 if (switch_count <= 1) 295 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time); 296 else { 297 switch_time_in_usec = 298 vif->bss_conf.beacon_int * switch_count * TIME_UNIT; 299 ucode_switch_time = iwl_usecs_to_beacons(priv, 300 switch_time_in_usec, 301 beacon_interval); 302 cmd.switch_time = iwl_add_beacon_time(priv, 303 priv->ucode_beacon_time, 304 ucode_switch_time, 305 beacon_interval); 306 } 307 IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n", 308 cmd.switch_time); 309 ch_info = iwl_get_channel_info(priv, priv->band, ch); 310 if (ch_info) 311 cmd.expect_beacon = is_channel_radar(ch_info); 312 else { 313 IWL_ERR(priv, "invalid channel switch from %u to %u\n", 314 ctx->active.channel, ch); 315 return -EFAULT; 316 } 317 318 return trans_send_cmd(priv, &hcmd); 319} 320 321static struct iwl_lib_ops iwl5000_lib = { 322 .set_hw_params = iwl5000_hw_set_hw_params, 323 .rx_handler_setup = iwlagn_rx_handler_setup, 324 .setup_deferred_work = iwlagn_setup_deferred_work, 325 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, 326 .set_channel_switch = iwl5000_hw_channel_switch, 327 .nic_config = iwl5000_nic_config, 328 .eeprom_ops = { 329 .regulatory_bands = { 330 EEPROM_REG_BAND_1_CHANNELS, 331 EEPROM_REG_BAND_2_CHANNELS, 332 EEPROM_REG_BAND_3_CHANNELS, 333 EEPROM_REG_BAND_4_CHANNELS, 334 EEPROM_REG_BAND_5_CHANNELS, 335 EEPROM_REG_BAND_24_HT40_CHANNELS, 336 EEPROM_REG_BAND_52_HT40_CHANNELS 337 }, 338 }, 339 .temperature = iwlagn_temperature, 340}; 341 342static struct iwl_lib_ops iwl5150_lib = { 343 .set_hw_params = iwl5150_hw_set_hw_params, 344 .rx_handler_setup = iwlagn_rx_handler_setup, 345 .setup_deferred_work = iwlagn_setup_deferred_work, 346 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, 347 .set_channel_switch = iwl5000_hw_channel_switch, 348 .nic_config = iwl5000_nic_config, 349 .eeprom_ops = { 350 .regulatory_bands = { 351 EEPROM_REG_BAND_1_CHANNELS, 352 EEPROM_REG_BAND_2_CHANNELS, 353 EEPROM_REG_BAND_3_CHANNELS, 354 EEPROM_REG_BAND_4_CHANNELS, 355 EEPROM_REG_BAND_5_CHANNELS, 356 EEPROM_REG_BAND_24_HT40_CHANNELS, 357 EEPROM_REG_BAND_52_HT40_CHANNELS 358 }, 359 }, 360 .temperature = iwl5150_temperature, 361}; 362 363static const struct iwl_ops iwl5000_ops = { 364 .lib = &iwl5000_lib, 365}; 366 367static const struct iwl_ops iwl5150_ops = { 368 .lib = &iwl5150_lib, 369}; 370 371static struct iwl_base_params iwl5000_base_params = { 372 .eeprom_size = IWLAGN_EEPROM_IMG_SIZE, 373 .num_of_queues = IWLAGN_NUM_QUEUES, 374 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES, 375 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL, 376 .led_compensation = 51, 377 .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, 378 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, 379 .chain_noise_scale = 1000, 380 .wd_timeout = IWL_LONG_WD_TIMEOUT, 381 .max_event_log_size = 512, 382}; 383static struct iwl_ht_params iwl5000_ht_params = { 384 .ht_greenfield_support = true, 385}; 386 387#define IWL_DEVICE_5000 \ 388 .fw_name_pre = IWL5000_FW_PRE, \ 389 .ucode_api_max = IWL5000_UCODE_API_MAX, \ 390 .ucode_api_min = IWL5000_UCODE_API_MIN, \ 391 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \ 392 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \ 393 .ops = &iwl5000_ops, \ 394 .base_params = &iwl5000_base_params, \ 395 .led_mode = IWL_LED_BLINK 396 397struct iwl_cfg iwl5300_agn_cfg = { 398 .name = "Intel(R) Ultimate N WiFi Link 5300 AGN", 399 IWL_DEVICE_5000, 400 /* at least EEPROM 0x11A has wrong info */ 401 .valid_tx_ant = ANT_ABC, /* .cfg overwrite */ 402 .valid_rx_ant = ANT_ABC, /* .cfg overwrite */ 403 .ht_params = &iwl5000_ht_params, 404}; 405 406struct iwl_cfg iwl5100_bgn_cfg = { 407 .name = "Intel(R) WiFi Link 5100 BGN", 408 IWL_DEVICE_5000, 409 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 410 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 411 .ht_params = &iwl5000_ht_params, 412}; 413 414struct iwl_cfg iwl5100_abg_cfg = { 415 .name = "Intel(R) WiFi Link 5100 ABG", 416 IWL_DEVICE_5000, 417 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 418 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 419}; 420 421struct iwl_cfg iwl5100_agn_cfg = { 422 .name = "Intel(R) WiFi Link 5100 AGN", 423 IWL_DEVICE_5000, 424 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 425 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 426 .ht_params = &iwl5000_ht_params, 427}; 428 429struct iwl_cfg iwl5350_agn_cfg = { 430 .name = "Intel(R) WiMAX/WiFi Link 5350 AGN", 431 .fw_name_pre = IWL5000_FW_PRE, 432 .ucode_api_max = IWL5000_UCODE_API_MAX, 433 .ucode_api_min = IWL5000_UCODE_API_MIN, 434 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, 435 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, 436 .ops = &iwl5000_ops, 437 .base_params = &iwl5000_base_params, 438 .ht_params = &iwl5000_ht_params, 439 .led_mode = IWL_LED_BLINK, 440 .internal_wimax_coex = true, 441}; 442 443#define IWL_DEVICE_5150 \ 444 .fw_name_pre = IWL5150_FW_PRE, \ 445 .ucode_api_max = IWL5150_UCODE_API_MAX, \ 446 .ucode_api_min = IWL5150_UCODE_API_MIN, \ 447 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \ 448 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \ 449 .ops = &iwl5150_ops, \ 450 .base_params = &iwl5000_base_params, \ 451 .need_dc_calib = true, \ 452 .led_mode = IWL_LED_BLINK, \ 453 .internal_wimax_coex = true 454 455struct iwl_cfg iwl5150_agn_cfg = { 456 .name = "Intel(R) WiMAX/WiFi Link 5150 AGN", 457 IWL_DEVICE_5150, 458 .ht_params = &iwl5000_ht_params, 459 460}; 461 462struct iwl_cfg iwl5150_abg_cfg = { 463 .name = "Intel(R) WiMAX/WiFi Link 5150 ABG", 464 IWL_DEVICE_5150, 465}; 466 467MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX)); 468MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX)); 469