iwl-5000.c revision 214d14d4d323aab5d455b409e279f9e1e6631123
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/pci.h> 31#include <linux/dma-mapping.h> 32#include <linux/delay.h> 33#include <linux/sched.h> 34#include <linux/skbuff.h> 35#include <linux/netdevice.h> 36#include <linux/wireless.h> 37#include <net/mac80211.h> 38#include <linux/etherdevice.h> 39#include <asm/unaligned.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-helpers.h" 47#include "iwl-agn.h" 48#include "iwl-agn-hw.h" 49#include "iwl-5000-hw.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 #api ".ucode" 61 62#define IWL5150_FW_PRE "iwlwifi-5150-" 63#define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE #api ".ucode" 64 65/* NIC configuration for 5000 series */ 66static void iwl5000_nic_config(struct iwl_priv *priv) 67{ 68 unsigned long flags; 69 u16 radio_cfg; 70 71 spin_lock_irqsave(&priv->lock, flags); 72 73 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG); 74 75 /* write radio config values to register */ 76 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) < EEPROM_RF_CONFIG_TYPE_MAX) 77 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, 78 EEPROM_RF_CFG_TYPE_MSK(radio_cfg) | 79 EEPROM_RF_CFG_STEP_MSK(radio_cfg) | 80 EEPROM_RF_CFG_DASH_MSK(radio_cfg)); 81 82 /* set CSR_HW_CONFIG_REG for uCode use */ 83 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, 84 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 85 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI); 86 87 /* W/A : NIC is stuck in a reset state after Early PCIe power off 88 * (PCIe power is lost before PERST# is asserted), 89 * causing ME FW to lose ownership and not being able to obtain it back. 90 */ 91 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, 92 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 93 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 94 95 96 spin_unlock_irqrestore(&priv->lock, flags); 97} 98 99static struct iwl_sensitivity_ranges iwl5000_sensitivity = { 100 .min_nrg_cck = 95, 101 .max_nrg_cck = 0, /* not used, set to 0 */ 102 .auto_corr_min_ofdm = 90, 103 .auto_corr_min_ofdm_mrc = 170, 104 .auto_corr_min_ofdm_x1 = 120, 105 .auto_corr_min_ofdm_mrc_x1 = 240, 106 107 .auto_corr_max_ofdm = 120, 108 .auto_corr_max_ofdm_mrc = 210, 109 .auto_corr_max_ofdm_x1 = 120, 110 .auto_corr_max_ofdm_mrc_x1 = 240, 111 112 .auto_corr_min_cck = 125, 113 .auto_corr_max_cck = 200, 114 .auto_corr_min_cck_mrc = 170, 115 .auto_corr_max_cck_mrc = 400, 116 .nrg_th_cck = 95, 117 .nrg_th_ofdm = 95, 118 119 .barker_corr_th_min = 190, 120 .barker_corr_th_min_mrc = 390, 121 .nrg_th_cca = 62, 122}; 123 124static struct iwl_sensitivity_ranges iwl5150_sensitivity = { 125 .min_nrg_cck = 95, 126 .max_nrg_cck = 0, /* not used, set to 0 */ 127 .auto_corr_min_ofdm = 90, 128 .auto_corr_min_ofdm_mrc = 170, 129 .auto_corr_min_ofdm_x1 = 105, 130 .auto_corr_min_ofdm_mrc_x1 = 220, 131 132 .auto_corr_max_ofdm = 120, 133 .auto_corr_max_ofdm_mrc = 210, 134 /* max = min for performance bug in 5150 DSP */ 135 .auto_corr_max_ofdm_x1 = 105, 136 .auto_corr_max_ofdm_mrc_x1 = 220, 137 138 .auto_corr_min_cck = 125, 139 .auto_corr_max_cck = 200, 140 .auto_corr_min_cck_mrc = 170, 141 .auto_corr_max_cck_mrc = 400, 142 .nrg_th_cck = 95, 143 .nrg_th_ofdm = 95, 144 145 .barker_corr_th_min = 190, 146 .barker_corr_th_min_mrc = 390, 147 .nrg_th_cca = 62, 148}; 149 150static void iwl5150_set_ct_threshold(struct iwl_priv *priv) 151{ 152 const s32 volt2temp_coef = IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF; 153 s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY) - 154 iwl_temp_calib_to_offset(priv); 155 156 priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef; 157} 158 159static void iwl5000_set_ct_threshold(struct iwl_priv *priv) 160{ 161 /* want Celsius */ 162 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY; 163} 164 165static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) 166{ 167 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 168 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 169 priv->cfg->base_params->num_of_queues = 170 iwlagn_mod_params.num_of_queues; 171 172 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; 173 priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM; 174 priv->hw_params.scd_bc_tbls_size = 175 priv->cfg->base_params->num_of_queues * 176 sizeof(struct iwlagn_scd_bc_tbl); 177 priv->hw_params.tfd_size = sizeof(struct iwl_tfd); 178 priv->hw_params.max_stations = IWLAGN_STATION_COUNT; 179 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; 180 181 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE; 182 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE; 183 184 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | 185 BIT(IEEE80211_BAND_5GHZ); 186 priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; 187 188 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); 189 priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); 190 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant; 191 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant; 192 193 iwl5000_set_ct_threshold(priv); 194 195 /* Set initial sensitivity parameters */ 196 /* Set initial calibration set */ 197 priv->hw_params.sens = &iwl5000_sensitivity; 198 priv->hw_params.calib_init_cfg = 199 BIT(IWL_CALIB_XTAL) | 200 BIT(IWL_CALIB_LO) | 201 BIT(IWL_CALIB_TX_IQ) | 202 BIT(IWL_CALIB_TX_IQ_PERD) | 203 BIT(IWL_CALIB_BASE_BAND); 204 205 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS; 206 207 return 0; 208} 209 210static int iwl5150_hw_set_hw_params(struct iwl_priv *priv) 211{ 212 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 213 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 214 priv->cfg->base_params->num_of_queues = 215 iwlagn_mod_params.num_of_queues; 216 217 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; 218 priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM; 219 priv->hw_params.scd_bc_tbls_size = 220 priv->cfg->base_params->num_of_queues * 221 sizeof(struct iwlagn_scd_bc_tbl); 222 priv->hw_params.tfd_size = sizeof(struct iwl_tfd); 223 priv->hw_params.max_stations = IWLAGN_STATION_COUNT; 224 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; 225 226 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE; 227 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE; 228 229 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | 230 BIT(IEEE80211_BAND_5GHZ); 231 priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; 232 233 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); 234 priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); 235 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant; 236 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant; 237 238 iwl5150_set_ct_threshold(priv); 239 240 /* Set initial sensitivity parameters */ 241 /* Set initial calibration set */ 242 priv->hw_params.sens = &iwl5150_sensitivity; 243 priv->hw_params.calib_init_cfg = 244 BIT(IWL_CALIB_LO) | 245 BIT(IWL_CALIB_TX_IQ) | 246 BIT(IWL_CALIB_BASE_BAND); 247 if (priv->cfg->need_dc_calib) 248 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC); 249 250 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS; 251 252 return 0; 253} 254 255static void iwl5150_temperature(struct iwl_priv *priv) 256{ 257 u32 vt = 0; 258 s32 offset = iwl_temp_calib_to_offset(priv); 259 260 vt = le32_to_cpu(priv->statistics.common.temperature); 261 vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset; 262 /* now vt hold the temperature in Kelvin */ 263 priv->temperature = KELVIN_TO_CELSIUS(vt); 264 iwl_tt_handler(priv); 265} 266 267static int iwl5000_hw_channel_switch(struct iwl_priv *priv, 268 struct ieee80211_channel_switch *ch_switch) 269{ 270 /* 271 * MULTI-FIXME 272 * See iwl_mac_channel_switch. 273 */ 274 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; 275 struct iwl5000_channel_switch_cmd cmd; 276 const struct iwl_channel_info *ch_info; 277 u32 switch_time_in_usec, ucode_switch_time; 278 u16 ch; 279 u32 tsf_low; 280 u8 switch_count; 281 u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval); 282 struct ieee80211_vif *vif = ctx->vif; 283 struct iwl_host_cmd hcmd = { 284 .id = REPLY_CHANNEL_SWITCH, 285 .len = { sizeof(cmd), }, 286 .flags = CMD_SYNC, 287 .data = { &cmd, }, 288 }; 289 290 cmd.band = priv->band == IEEE80211_BAND_2GHZ; 291 ch = ch_switch->channel->hw_value; 292 IWL_DEBUG_11H(priv, "channel switch from %d to %d\n", 293 ctx->active.channel, ch); 294 cmd.channel = cpu_to_le16(ch); 295 cmd.rxon_flags = ctx->staging.flags; 296 cmd.rxon_filter_flags = ctx->staging.filter_flags; 297 switch_count = ch_switch->count; 298 tsf_low = ch_switch->timestamp & 0x0ffffffff; 299 /* 300 * calculate the ucode channel switch time 301 * adding TSF as one of the factor for when to switch 302 */ 303 if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) { 304 if (switch_count > ((priv->ucode_beacon_time - tsf_low) / 305 beacon_interval)) { 306 switch_count -= (priv->ucode_beacon_time - 307 tsf_low) / beacon_interval; 308 } else 309 switch_count = 0; 310 } 311 if (switch_count <= 1) 312 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time); 313 else { 314 switch_time_in_usec = 315 vif->bss_conf.beacon_int * switch_count * TIME_UNIT; 316 ucode_switch_time = iwl_usecs_to_beacons(priv, 317 switch_time_in_usec, 318 beacon_interval); 319 cmd.switch_time = iwl_add_beacon_time(priv, 320 priv->ucode_beacon_time, 321 ucode_switch_time, 322 beacon_interval); 323 } 324 IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n", 325 cmd.switch_time); 326 ch_info = iwl_get_channel_info(priv, priv->band, ch); 327 if (ch_info) 328 cmd.expect_beacon = is_channel_radar(ch_info); 329 else { 330 IWL_ERR(priv, "invalid channel switch from %u to %u\n", 331 ctx->active.channel, ch); 332 return -EFAULT; 333 } 334 priv->switch_rxon.channel = cmd.channel; 335 priv->switch_rxon.switch_in_progress = true; 336 337 return iwl_send_cmd_sync(priv, &hcmd); 338} 339 340static struct iwl_lib_ops iwl5000_lib = { 341 .set_hw_params = iwl5000_hw_set_hw_params, 342 .rx_handler_setup = iwlagn_rx_handler_setup, 343 .setup_deferred_work = iwlagn_setup_deferred_work, 344 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, 345 .send_tx_power = iwlagn_send_tx_power, 346 .update_chain_flags = iwl_update_chain_flags, 347 .set_channel_switch = iwl5000_hw_channel_switch, 348 .apm_ops = { 349 .init = iwl_apm_init, 350 .config = iwl5000_nic_config, 351 }, 352 .eeprom_ops = { 353 .regulatory_bands = { 354 EEPROM_REG_BAND_1_CHANNELS, 355 EEPROM_REG_BAND_2_CHANNELS, 356 EEPROM_REG_BAND_3_CHANNELS, 357 EEPROM_REG_BAND_4_CHANNELS, 358 EEPROM_REG_BAND_5_CHANNELS, 359 EEPROM_REG_BAND_24_HT40_CHANNELS, 360 EEPROM_REG_BAND_52_HT40_CHANNELS 361 }, 362 .query_addr = iwlagn_eeprom_query_addr, 363 }, 364 .temp_ops = { 365 .temperature = iwlagn_temperature, 366 }, 367 .txfifo_flush = iwlagn_txfifo_flush, 368 .dev_txfifo_flush = iwlagn_dev_txfifo_flush, 369}; 370 371static struct iwl_lib_ops iwl5150_lib = { 372 .set_hw_params = iwl5150_hw_set_hw_params, 373 .rx_handler_setup = iwlagn_rx_handler_setup, 374 .setup_deferred_work = iwlagn_setup_deferred_work, 375 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, 376 .send_tx_power = iwlagn_send_tx_power, 377 .update_chain_flags = iwl_update_chain_flags, 378 .set_channel_switch = iwl5000_hw_channel_switch, 379 .apm_ops = { 380 .init = iwl_apm_init, 381 .config = iwl5000_nic_config, 382 }, 383 .eeprom_ops = { 384 .regulatory_bands = { 385 EEPROM_REG_BAND_1_CHANNELS, 386 EEPROM_REG_BAND_2_CHANNELS, 387 EEPROM_REG_BAND_3_CHANNELS, 388 EEPROM_REG_BAND_4_CHANNELS, 389 EEPROM_REG_BAND_5_CHANNELS, 390 EEPROM_REG_BAND_24_HT40_CHANNELS, 391 EEPROM_REG_BAND_52_HT40_CHANNELS 392 }, 393 .query_addr = iwlagn_eeprom_query_addr, 394 }, 395 .temp_ops = { 396 .temperature = iwl5150_temperature, 397 }, 398 .txfifo_flush = iwlagn_txfifo_flush, 399 .dev_txfifo_flush = iwlagn_dev_txfifo_flush, 400}; 401 402static const struct iwl_ops iwl5000_ops = { 403 .lib = &iwl5000_lib, 404 .hcmd = &iwlagn_hcmd, 405 .utils = &iwlagn_hcmd_utils, 406}; 407 408static const struct iwl_ops iwl5150_ops = { 409 .lib = &iwl5150_lib, 410 .hcmd = &iwlagn_hcmd, 411 .utils = &iwlagn_hcmd_utils, 412}; 413 414static struct iwl_base_params iwl5000_base_params = { 415 .eeprom_size = IWLAGN_EEPROM_IMG_SIZE, 416 .num_of_queues = IWLAGN_NUM_QUEUES, 417 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES, 418 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL, 419 .led_compensation = 51, 420 .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, 421 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, 422 .chain_noise_scale = 1000, 423 .wd_timeout = IWL_LONG_WD_TIMEOUT, 424 .max_event_log_size = 512, 425}; 426static struct iwl_ht_params iwl5000_ht_params = { 427 .ht_greenfield_support = true, 428 .use_rts_for_aggregation = true, /* use rts/cts protection */ 429}; 430 431#define IWL_DEVICE_5000 \ 432 .fw_name_pre = IWL5000_FW_PRE, \ 433 .ucode_api_max = IWL5000_UCODE_API_MAX, \ 434 .ucode_api_min = IWL5000_UCODE_API_MIN, \ 435 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \ 436 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \ 437 .ops = &iwl5000_ops, \ 438 .base_params = &iwl5000_base_params, \ 439 .led_mode = IWL_LED_BLINK 440 441struct iwl_cfg iwl5300_agn_cfg = { 442 .name = "Intel(R) Ultimate N WiFi Link 5300 AGN", 443 IWL_DEVICE_5000, 444 /* at least EEPROM 0x11A has wrong info */ 445 .valid_tx_ant = ANT_ABC, /* .cfg overwrite */ 446 .valid_rx_ant = ANT_ABC, /* .cfg overwrite */ 447 .ht_params = &iwl5000_ht_params, 448}; 449 450struct iwl_cfg iwl5100_bgn_cfg = { 451 .name = "Intel(R) WiFi Link 5100 BGN", 452 IWL_DEVICE_5000, 453 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 454 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 455 .ht_params = &iwl5000_ht_params, 456}; 457 458struct iwl_cfg iwl5100_abg_cfg = { 459 .name = "Intel(R) WiFi Link 5100 ABG", 460 IWL_DEVICE_5000, 461 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 462 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 463}; 464 465struct iwl_cfg iwl5100_agn_cfg = { 466 .name = "Intel(R) WiFi Link 5100 AGN", 467 IWL_DEVICE_5000, 468 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 469 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 470 .ht_params = &iwl5000_ht_params, 471}; 472 473struct iwl_cfg iwl5350_agn_cfg = { 474 .name = "Intel(R) WiMAX/WiFi Link 5350 AGN", 475 .fw_name_pre = IWL5000_FW_PRE, 476 .ucode_api_max = IWL5000_UCODE_API_MAX, 477 .ucode_api_min = IWL5000_UCODE_API_MIN, 478 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, 479 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, 480 .ops = &iwl5000_ops, 481 .base_params = &iwl5000_base_params, 482 .ht_params = &iwl5000_ht_params, 483 .led_mode = IWL_LED_BLINK, 484 .internal_wimax_coex = true, 485}; 486 487#define IWL_DEVICE_5150 \ 488 .fw_name_pre = IWL5150_FW_PRE, \ 489 .ucode_api_max = IWL5150_UCODE_API_MAX, \ 490 .ucode_api_min = IWL5150_UCODE_API_MIN, \ 491 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \ 492 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \ 493 .ops = &iwl5150_ops, \ 494 .base_params = &iwl5000_base_params, \ 495 .need_dc_calib = true, \ 496 .led_mode = IWL_LED_BLINK, \ 497 .internal_wimax_coex = true 498 499struct iwl_cfg iwl5150_agn_cfg = { 500 .name = "Intel(R) WiMAX/WiFi Link 5150 AGN", 501 IWL_DEVICE_5150, 502 .ht_params = &iwl5000_ht_params, 503 504}; 505 506struct iwl_cfg iwl5150_abg_cfg = { 507 .name = "Intel(R) WiMAX/WiFi Link 5150 ABG", 508 IWL_DEVICE_5150, 509}; 510 511MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX)); 512MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX)); 513