iwl-5000.c revision e3f10cea039b235c1de12648ea87b752990c11bf
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 50/* Highest firmware API version supported */ 51#define IWL5000_UCODE_API_MAX 5 52#define IWL5150_UCODE_API_MAX 2 53 54/* Lowest firmware API version supported */ 55#define IWL5000_UCODE_API_MIN 1 56#define IWL5150_UCODE_API_MIN 1 57 58#define IWL5000_FW_PRE "iwlwifi-5000-" 59#define IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE __stringify(api) ".ucode" 60 61#define IWL5150_FW_PRE "iwlwifi-5150-" 62#define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE __stringify(api) ".ucode" 63 64/* NIC configuration for 5000 series */ 65static void iwl5000_nic_config(struct iwl_priv *priv) 66{ 67 unsigned long flags; 68 69 iwl_rf_config(priv); 70 71 spin_lock_irqsave(&priv->lock, flags); 72 73 /* W/A : NIC is stuck in a reset state after Early PCIe power off 74 * (PCIe power is lost before PERST# is asserted), 75 * causing ME FW to lose ownership and not being able to obtain it back. 76 */ 77 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, 78 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 79 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 80 81 82 spin_unlock_irqrestore(&priv->lock, flags); 83} 84 85static struct iwl_sensitivity_ranges iwl5000_sensitivity = { 86 .min_nrg_cck = 95, 87 .max_nrg_cck = 0, /* not used, set to 0 */ 88 .auto_corr_min_ofdm = 90, 89 .auto_corr_min_ofdm_mrc = 170, 90 .auto_corr_min_ofdm_x1 = 120, 91 .auto_corr_min_ofdm_mrc_x1 = 240, 92 93 .auto_corr_max_ofdm = 120, 94 .auto_corr_max_ofdm_mrc = 210, 95 .auto_corr_max_ofdm_x1 = 120, 96 .auto_corr_max_ofdm_mrc_x1 = 240, 97 98 .auto_corr_min_cck = 125, 99 .auto_corr_max_cck = 200, 100 .auto_corr_min_cck_mrc = 170, 101 .auto_corr_max_cck_mrc = 400, 102 .nrg_th_cck = 95, 103 .nrg_th_ofdm = 95, 104 105 .barker_corr_th_min = 190, 106 .barker_corr_th_min_mrc = 390, 107 .nrg_th_cca = 62, 108}; 109 110static struct iwl_sensitivity_ranges iwl5150_sensitivity = { 111 .min_nrg_cck = 95, 112 .max_nrg_cck = 0, /* not used, set to 0 */ 113 .auto_corr_min_ofdm = 90, 114 .auto_corr_min_ofdm_mrc = 170, 115 .auto_corr_min_ofdm_x1 = 105, 116 .auto_corr_min_ofdm_mrc_x1 = 220, 117 118 .auto_corr_max_ofdm = 120, 119 .auto_corr_max_ofdm_mrc = 210, 120 /* max = min for performance bug in 5150 DSP */ 121 .auto_corr_max_ofdm_x1 = 105, 122 .auto_corr_max_ofdm_mrc_x1 = 220, 123 124 .auto_corr_min_cck = 125, 125 .auto_corr_max_cck = 200, 126 .auto_corr_min_cck_mrc = 170, 127 .auto_corr_max_cck_mrc = 400, 128 .nrg_th_cck = 95, 129 .nrg_th_ofdm = 95, 130 131 .barker_corr_th_min = 190, 132 .barker_corr_th_min_mrc = 390, 133 .nrg_th_cca = 62, 134}; 135 136static void iwl5150_set_ct_threshold(struct iwl_priv *priv) 137{ 138 const s32 volt2temp_coef = IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF; 139 s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY) - 140 iwl_temp_calib_to_offset(priv); 141 142 priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef; 143} 144 145static void iwl5000_set_ct_threshold(struct iwl_priv *priv) 146{ 147 /* want Celsius */ 148 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY; 149} 150 151static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) 152{ 153 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 154 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 155 priv->cfg->base_params->num_of_queues = 156 iwlagn_mod_params.num_of_queues; 157 158 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; 159 priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM; 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 priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; 173 174 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); 175 priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); 176 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant; 177 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant; 178 179 iwl5000_set_ct_threshold(priv); 180 181 /* Set initial sensitivity parameters */ 182 /* Set initial calibration set */ 183 priv->hw_params.sens = &iwl5000_sensitivity; 184 priv->hw_params.calib_init_cfg = 185 BIT(IWL_CALIB_XTAL) | 186 BIT(IWL_CALIB_LO) | 187 BIT(IWL_CALIB_TX_IQ) | 188 BIT(IWL_CALIB_TX_IQ_PERD) | 189 BIT(IWL_CALIB_BASE_BAND); 190 191 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS; 192 193 return 0; 194} 195 196static int iwl5150_hw_set_hw_params(struct iwl_priv *priv) 197{ 198 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 199 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 200 priv->cfg->base_params->num_of_queues = 201 iwlagn_mod_params.num_of_queues; 202 203 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; 204 priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM; 205 priv->hw_params.scd_bc_tbls_size = 206 priv->cfg->base_params->num_of_queues * 207 sizeof(struct iwlagn_scd_bc_tbl); 208 priv->hw_params.tfd_size = sizeof(struct iwl_tfd); 209 priv->hw_params.max_stations = IWLAGN_STATION_COUNT; 210 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; 211 212 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE; 213 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE; 214 215 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | 216 BIT(IEEE80211_BAND_5GHZ); 217 priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; 218 219 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); 220 priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); 221 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant; 222 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant; 223 224 iwl5150_set_ct_threshold(priv); 225 226 /* Set initial sensitivity parameters */ 227 /* Set initial calibration set */ 228 priv->hw_params.sens = &iwl5150_sensitivity; 229 priv->hw_params.calib_init_cfg = 230 BIT(IWL_CALIB_LO) | 231 BIT(IWL_CALIB_TX_IQ) | 232 BIT(IWL_CALIB_BASE_BAND); 233 if (priv->cfg->need_dc_calib) 234 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC); 235 236 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS; 237 238 return 0; 239} 240 241static void iwl5150_temperature(struct iwl_priv *priv) 242{ 243 u32 vt = 0; 244 s32 offset = iwl_temp_calib_to_offset(priv); 245 246 vt = le32_to_cpu(priv->statistics.common.temperature); 247 vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset; 248 /* now vt hold the temperature in Kelvin */ 249 priv->temperature = KELVIN_TO_CELSIUS(vt); 250 iwl_tt_handler(priv); 251} 252 253static int iwl5000_hw_channel_switch(struct iwl_priv *priv, 254 struct ieee80211_channel_switch *ch_switch) 255{ 256 /* 257 * MULTI-FIXME 258 * See iwl_mac_channel_switch. 259 */ 260 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; 261 struct iwl5000_channel_switch_cmd cmd; 262 const struct iwl_channel_info *ch_info; 263 u32 switch_time_in_usec, ucode_switch_time; 264 u16 ch; 265 u32 tsf_low; 266 u8 switch_count; 267 u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval); 268 struct ieee80211_vif *vif = ctx->vif; 269 struct iwl_host_cmd hcmd = { 270 .id = REPLY_CHANNEL_SWITCH, 271 .len = { sizeof(cmd), }, 272 .flags = CMD_SYNC, 273 .data = { &cmd, }, 274 }; 275 276 cmd.band = priv->band == IEEE80211_BAND_2GHZ; 277 ch = ch_switch->channel->hw_value; 278 IWL_DEBUG_11H(priv, "channel switch from %d to %d\n", 279 ctx->active.channel, ch); 280 cmd.channel = cpu_to_le16(ch); 281 cmd.rxon_flags = ctx->staging.flags; 282 cmd.rxon_filter_flags = ctx->staging.filter_flags; 283 switch_count = ch_switch->count; 284 tsf_low = ch_switch->timestamp & 0x0ffffffff; 285 /* 286 * calculate the ucode channel switch time 287 * adding TSF as one of the factor for when to switch 288 */ 289 if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) { 290 if (switch_count > ((priv->ucode_beacon_time - tsf_low) / 291 beacon_interval)) { 292 switch_count -= (priv->ucode_beacon_time - 293 tsf_low) / beacon_interval; 294 } else 295 switch_count = 0; 296 } 297 if (switch_count <= 1) 298 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time); 299 else { 300 switch_time_in_usec = 301 vif->bss_conf.beacon_int * switch_count * TIME_UNIT; 302 ucode_switch_time = iwl_usecs_to_beacons(priv, 303 switch_time_in_usec, 304 beacon_interval); 305 cmd.switch_time = iwl_add_beacon_time(priv, 306 priv->ucode_beacon_time, 307 ucode_switch_time, 308 beacon_interval); 309 } 310 IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n", 311 cmd.switch_time); 312 ch_info = iwl_get_channel_info(priv, priv->band, ch); 313 if (ch_info) 314 cmd.expect_beacon = is_channel_radar(ch_info); 315 else { 316 IWL_ERR(priv, "invalid channel switch from %u to %u\n", 317 ctx->active.channel, ch); 318 return -EFAULT; 319 } 320 321 return iwl_send_cmd_sync(priv, &hcmd); 322} 323 324static struct iwl_lib_ops iwl5000_lib = { 325 .set_hw_params = iwl5000_hw_set_hw_params, 326 .rx_handler_setup = iwlagn_rx_handler_setup, 327 .setup_deferred_work = iwlagn_setup_deferred_work, 328 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, 329 .update_chain_flags = iwl_update_chain_flags, 330 .set_channel_switch = iwl5000_hw_channel_switch, 331 .apm_ops = { 332 .init = iwl_apm_init, 333 .config = iwl5000_nic_config, 334 }, 335 .eeprom_ops = { 336 .regulatory_bands = { 337 EEPROM_REG_BAND_1_CHANNELS, 338 EEPROM_REG_BAND_2_CHANNELS, 339 EEPROM_REG_BAND_3_CHANNELS, 340 EEPROM_REG_BAND_4_CHANNELS, 341 EEPROM_REG_BAND_5_CHANNELS, 342 EEPROM_REG_BAND_24_HT40_CHANNELS, 343 EEPROM_REG_BAND_52_HT40_CHANNELS 344 }, 345 .query_addr = iwlagn_eeprom_query_addr, 346 }, 347 .temp_ops = { 348 .temperature = iwlagn_temperature, 349 }, 350}; 351 352static struct iwl_lib_ops iwl5150_lib = { 353 .set_hw_params = iwl5150_hw_set_hw_params, 354 .rx_handler_setup = iwlagn_rx_handler_setup, 355 .setup_deferred_work = iwlagn_setup_deferred_work, 356 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, 357 .update_chain_flags = iwl_update_chain_flags, 358 .set_channel_switch = iwl5000_hw_channel_switch, 359 .apm_ops = { 360 .init = iwl_apm_init, 361 .config = iwl5000_nic_config, 362 }, 363 .eeprom_ops = { 364 .regulatory_bands = { 365 EEPROM_REG_BAND_1_CHANNELS, 366 EEPROM_REG_BAND_2_CHANNELS, 367 EEPROM_REG_BAND_3_CHANNELS, 368 EEPROM_REG_BAND_4_CHANNELS, 369 EEPROM_REG_BAND_5_CHANNELS, 370 EEPROM_REG_BAND_24_HT40_CHANNELS, 371 EEPROM_REG_BAND_52_HT40_CHANNELS 372 }, 373 .query_addr = iwlagn_eeprom_query_addr, 374 }, 375 .temp_ops = { 376 .temperature = iwl5150_temperature, 377 }, 378}; 379 380static const struct iwl_ops iwl5000_ops = { 381 .lib = &iwl5000_lib, 382 .utils = &iwlagn_hcmd_utils, 383}; 384 385static const struct iwl_ops iwl5150_ops = { 386 .lib = &iwl5150_lib, 387 .utils = &iwlagn_hcmd_utils, 388}; 389 390static struct iwl_base_params iwl5000_base_params = { 391 .eeprom_size = IWLAGN_EEPROM_IMG_SIZE, 392 .num_of_queues = IWLAGN_NUM_QUEUES, 393 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES, 394 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL, 395 .led_compensation = 51, 396 .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, 397 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, 398 .chain_noise_scale = 1000, 399 .wd_timeout = IWL_LONG_WD_TIMEOUT, 400 .max_event_log_size = 512, 401}; 402static struct iwl_ht_params iwl5000_ht_params = { 403 .ht_greenfield_support = true, 404}; 405 406#define IWL_DEVICE_5000 \ 407 .fw_name_pre = IWL5000_FW_PRE, \ 408 .ucode_api_max = IWL5000_UCODE_API_MAX, \ 409 .ucode_api_min = IWL5000_UCODE_API_MIN, \ 410 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \ 411 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \ 412 .ops = &iwl5000_ops, \ 413 .base_params = &iwl5000_base_params, \ 414 .led_mode = IWL_LED_BLINK 415 416struct iwl_cfg iwl5300_agn_cfg = { 417 .name = "Intel(R) Ultimate N WiFi Link 5300 AGN", 418 IWL_DEVICE_5000, 419 /* at least EEPROM 0x11A has wrong info */ 420 .valid_tx_ant = ANT_ABC, /* .cfg overwrite */ 421 .valid_rx_ant = ANT_ABC, /* .cfg overwrite */ 422 .ht_params = &iwl5000_ht_params, 423}; 424 425struct iwl_cfg iwl5100_bgn_cfg = { 426 .name = "Intel(R) WiFi Link 5100 BGN", 427 IWL_DEVICE_5000, 428 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 429 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 430 .ht_params = &iwl5000_ht_params, 431}; 432 433struct iwl_cfg iwl5100_abg_cfg = { 434 .name = "Intel(R) WiFi Link 5100 ABG", 435 IWL_DEVICE_5000, 436 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 437 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 438}; 439 440struct iwl_cfg iwl5100_agn_cfg = { 441 .name = "Intel(R) WiFi Link 5100 AGN", 442 IWL_DEVICE_5000, 443 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 444 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 445 .ht_params = &iwl5000_ht_params, 446}; 447 448struct iwl_cfg iwl5350_agn_cfg = { 449 .name = "Intel(R) WiMAX/WiFi Link 5350 AGN", 450 .fw_name_pre = IWL5000_FW_PRE, 451 .ucode_api_max = IWL5000_UCODE_API_MAX, 452 .ucode_api_min = IWL5000_UCODE_API_MIN, 453 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, 454 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, 455 .ops = &iwl5000_ops, 456 .base_params = &iwl5000_base_params, 457 .ht_params = &iwl5000_ht_params, 458 .led_mode = IWL_LED_BLINK, 459 .internal_wimax_coex = true, 460}; 461 462#define IWL_DEVICE_5150 \ 463 .fw_name_pre = IWL5150_FW_PRE, \ 464 .ucode_api_max = IWL5150_UCODE_API_MAX, \ 465 .ucode_api_min = IWL5150_UCODE_API_MIN, \ 466 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \ 467 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \ 468 .ops = &iwl5150_ops, \ 469 .base_params = &iwl5000_base_params, \ 470 .need_dc_calib = true, \ 471 .led_mode = IWL_LED_BLINK, \ 472 .internal_wimax_coex = true 473 474struct iwl_cfg iwl5150_agn_cfg = { 475 .name = "Intel(R) WiMAX/WiFi Link 5150 AGN", 476 IWL_DEVICE_5150, 477 .ht_params = &iwl5000_ht_params, 478 479}; 480 481struct iwl_cfg iwl5150_abg_cfg = { 482 .name = "Intel(R) WiMAX/WiFi Link 5150 ABG", 483 IWL_DEVICE_5150, 484}; 485 486MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX)); 487MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX)); 488