iwl-5000.c revision 706c4ff67cb86134a3a93413a595a7c5559b7cc2
1/****************************************************************************** 2 * 3 * Copyright(c) 2007 - 2012 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 <net/mac80211.h> 35#include <linux/etherdevice.h> 36#include <asm/unaligned.h> 37#include <linux/stringify.h> 38 39#include "iwl-eeprom.h" 40#include "iwl-dev.h" 41#include "iwl-core.h" 42#include "iwl-io.h" 43#include "iwl-agn.h" 44#include "iwl-agn-hw.h" 45#include "iwl-trans.h" 46#include "iwl-shared.h" 47#include "iwl-cfg.h" 48 49/* Highest firmware API version supported */ 50#define IWL5000_UCODE_API_MAX 5 51#define IWL5150_UCODE_API_MAX 2 52 53/* Lowest firmware API version supported */ 54#define IWL5000_UCODE_API_MIN 1 55#define IWL5150_UCODE_API_MIN 1 56 57#define IWL5000_FW_PRE "iwlwifi-5000-" 58#define IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE __stringify(api) ".ucode" 59 60#define IWL5150_FW_PRE "iwlwifi-5150-" 61#define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE __stringify(api) ".ucode" 62 63/* NIC configuration for 5000 series */ 64static void iwl5000_nic_config(struct iwl_priv *priv) 65{ 66 iwl_rf_config(priv); 67 68 /* W/A : NIC is stuck in a reset state after Early PCIe power off 69 * (PCIe power is lost before PERST# is asserted), 70 * causing ME FW to lose ownership and not being able to obtain it back. 71 */ 72 iwl_set_bits_mask_prph(trans(priv), APMG_PS_CTRL_REG, 73 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 74 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 75} 76 77static struct iwl_sensitivity_ranges iwl5000_sensitivity = { 78 .min_nrg_cck = 100, 79 .max_nrg_cck = 0, /* not used, set to 0 */ 80 .auto_corr_min_ofdm = 90, 81 .auto_corr_min_ofdm_mrc = 170, 82 .auto_corr_min_ofdm_x1 = 105, 83 .auto_corr_min_ofdm_mrc_x1 = 220, 84 85 .auto_corr_max_ofdm = 120, 86 .auto_corr_max_ofdm_mrc = 210, 87 .auto_corr_max_ofdm_x1 = 120, 88 .auto_corr_max_ofdm_mrc_x1 = 240, 89 90 .auto_corr_min_cck = 125, 91 .auto_corr_max_cck = 200, 92 .auto_corr_min_cck_mrc = 200, 93 .auto_corr_max_cck_mrc = 400, 94 .nrg_th_cck = 100, 95 .nrg_th_ofdm = 100, 96 97 .barker_corr_th_min = 190, 98 .barker_corr_th_min_mrc = 390, 99 .nrg_th_cca = 62, 100}; 101 102static struct iwl_sensitivity_ranges iwl5150_sensitivity = { 103 .min_nrg_cck = 95, 104 .max_nrg_cck = 0, /* not used, set to 0 */ 105 .auto_corr_min_ofdm = 90, 106 .auto_corr_min_ofdm_mrc = 170, 107 .auto_corr_min_ofdm_x1 = 105, 108 .auto_corr_min_ofdm_mrc_x1 = 220, 109 110 .auto_corr_max_ofdm = 120, 111 .auto_corr_max_ofdm_mrc = 210, 112 /* max = min for performance bug in 5150 DSP */ 113 .auto_corr_max_ofdm_x1 = 105, 114 .auto_corr_max_ofdm_mrc_x1 = 220, 115 116 .auto_corr_min_cck = 125, 117 .auto_corr_max_cck = 200, 118 .auto_corr_min_cck_mrc = 170, 119 .auto_corr_max_cck_mrc = 400, 120 .nrg_th_cck = 95, 121 .nrg_th_ofdm = 95, 122 123 .barker_corr_th_min = 190, 124 .barker_corr_th_min_mrc = 390, 125 .nrg_th_cca = 62, 126}; 127 128#define IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF (-5) 129 130static s32 iwl_temp_calib_to_offset(struct iwl_shared *shrd) 131{ 132 u16 temperature, voltage; 133 __le16 *temp_calib = (__le16 *)iwl_eeprom_query_addr(shrd, 134 EEPROM_KELVIN_TEMPERATURE); 135 136 temperature = le16_to_cpu(temp_calib[0]); 137 voltage = le16_to_cpu(temp_calib[1]); 138 139 /* offset = temp - volt / coeff */ 140 return (s32)(temperature - voltage / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF); 141} 142 143static void iwl5150_set_ct_threshold(struct iwl_priv *priv) 144{ 145 const s32 volt2temp_coef = IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF; 146 s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY) - 147 iwl_temp_calib_to_offset(priv->shrd); 148 149 hw_params(priv).ct_kill_threshold = threshold * volt2temp_coef; 150} 151 152static void iwl5000_set_ct_threshold(struct iwl_priv *priv) 153{ 154 /* want Celsius */ 155 hw_params(priv).ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY; 156} 157 158static void iwl5000_hw_set_hw_params(struct iwl_priv *priv) 159{ 160 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 161 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 162 cfg(priv)->base_params->num_of_queues = 163 iwlagn_mod_params.num_of_queues; 164 165 hw_params(priv).max_txq_num = cfg(priv)->base_params->num_of_queues; 166 167 hw_params(priv).ht40_channel = BIT(IEEE80211_BAND_2GHZ) | 168 BIT(IEEE80211_BAND_5GHZ); 169 170 hw_params(priv).tx_chains_num = 171 num_of_ant(hw_params(priv).valid_tx_ant); 172 hw_params(priv).rx_chains_num = 173 num_of_ant(hw_params(priv).valid_rx_ant); 174 175 iwl5000_set_ct_threshold(priv); 176 177 /* Set initial sensitivity parameters */ 178 hw_params(priv).sens = &iwl5000_sensitivity; 179} 180 181static void iwl5150_hw_set_hw_params(struct iwl_priv *priv) 182{ 183 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES && 184 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES) 185 cfg(priv)->base_params->num_of_queues = 186 iwlagn_mod_params.num_of_queues; 187 188 hw_params(priv).max_txq_num = cfg(priv)->base_params->num_of_queues; 189 190 hw_params(priv).ht40_channel = BIT(IEEE80211_BAND_2GHZ) | 191 BIT(IEEE80211_BAND_5GHZ); 192 193 hw_params(priv).tx_chains_num = 194 num_of_ant(hw_params(priv).valid_tx_ant); 195 hw_params(priv).rx_chains_num = 196 num_of_ant(hw_params(priv).valid_rx_ant); 197 198 iwl5150_set_ct_threshold(priv); 199 200 /* Set initial sensitivity parameters */ 201 hw_params(priv).sens = &iwl5150_sensitivity; 202} 203 204static void iwl5150_temperature(struct iwl_priv *priv) 205{ 206 u32 vt = 0; 207 s32 offset = iwl_temp_calib_to_offset(priv->shrd); 208 209 vt = le32_to_cpu(priv->statistics.common.temperature); 210 vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset; 211 /* now vt hold the temperature in Kelvin */ 212 priv->temperature = KELVIN_TO_CELSIUS(vt); 213 iwl_tt_handler(priv); 214} 215 216static int iwl5000_hw_channel_switch(struct iwl_priv *priv, 217 struct ieee80211_channel_switch *ch_switch) 218{ 219 /* 220 * MULTI-FIXME 221 * See iwlagn_mac_channel_switch. 222 */ 223 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; 224 struct iwl5000_channel_switch_cmd cmd; 225 const struct iwl_channel_info *ch_info; 226 u32 switch_time_in_usec, ucode_switch_time; 227 u16 ch; 228 u32 tsf_low; 229 u8 switch_count; 230 u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval); 231 struct ieee80211_vif *vif = ctx->vif; 232 struct iwl_host_cmd hcmd = { 233 .id = REPLY_CHANNEL_SWITCH, 234 .len = { sizeof(cmd), }, 235 .flags = CMD_SYNC, 236 .data = { &cmd, }, 237 }; 238 239 cmd.band = priv->band == IEEE80211_BAND_2GHZ; 240 ch = ch_switch->channel->hw_value; 241 IWL_DEBUG_11H(priv, "channel switch from %d to %d\n", 242 ctx->active.channel, ch); 243 cmd.channel = cpu_to_le16(ch); 244 cmd.rxon_flags = ctx->staging.flags; 245 cmd.rxon_filter_flags = ctx->staging.filter_flags; 246 switch_count = ch_switch->count; 247 tsf_low = ch_switch->timestamp & 0x0ffffffff; 248 /* 249 * calculate the ucode channel switch time 250 * adding TSF as one of the factor for when to switch 251 */ 252 if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) { 253 if (switch_count > ((priv->ucode_beacon_time - tsf_low) / 254 beacon_interval)) { 255 switch_count -= (priv->ucode_beacon_time - 256 tsf_low) / beacon_interval; 257 } else 258 switch_count = 0; 259 } 260 if (switch_count <= 1) 261 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time); 262 else { 263 switch_time_in_usec = 264 vif->bss_conf.beacon_int * switch_count * TIME_UNIT; 265 ucode_switch_time = iwl_usecs_to_beacons(priv, 266 switch_time_in_usec, 267 beacon_interval); 268 cmd.switch_time = iwl_add_beacon_time(priv, 269 priv->ucode_beacon_time, 270 ucode_switch_time, 271 beacon_interval); 272 } 273 IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n", 274 cmd.switch_time); 275 ch_info = iwl_get_channel_info(priv, priv->band, ch); 276 if (ch_info) 277 cmd.expect_beacon = is_channel_radar(ch_info); 278 else { 279 IWL_ERR(priv, "invalid channel switch from %u to %u\n", 280 ctx->active.channel, ch); 281 return -EFAULT; 282 } 283 284 return iwl_trans_send_cmd(trans(priv), &hcmd); 285} 286 287static struct iwl_lib_ops iwl5000_lib = { 288 .set_hw_params = iwl5000_hw_set_hw_params, 289 .set_channel_switch = iwl5000_hw_channel_switch, 290 .nic_config = iwl5000_nic_config, 291 .eeprom_ops = { 292 .regulatory_bands = { 293 EEPROM_REG_BAND_1_CHANNELS, 294 EEPROM_REG_BAND_2_CHANNELS, 295 EEPROM_REG_BAND_3_CHANNELS, 296 EEPROM_REG_BAND_4_CHANNELS, 297 EEPROM_REG_BAND_5_CHANNELS, 298 EEPROM_REG_BAND_24_HT40_CHANNELS, 299 EEPROM_REG_BAND_52_HT40_CHANNELS 300 }, 301 }, 302 .temperature = iwlagn_temperature, 303}; 304 305static struct iwl_lib_ops iwl5150_lib = { 306 .set_hw_params = iwl5150_hw_set_hw_params, 307 .set_channel_switch = iwl5000_hw_channel_switch, 308 .nic_config = iwl5000_nic_config, 309 .eeprom_ops = { 310 .regulatory_bands = { 311 EEPROM_REG_BAND_1_CHANNELS, 312 EEPROM_REG_BAND_2_CHANNELS, 313 EEPROM_REG_BAND_3_CHANNELS, 314 EEPROM_REG_BAND_4_CHANNELS, 315 EEPROM_REG_BAND_5_CHANNELS, 316 EEPROM_REG_BAND_24_HT40_CHANNELS, 317 EEPROM_REG_BAND_52_HT40_CHANNELS 318 }, 319 }, 320 .temperature = iwl5150_temperature, 321}; 322 323static struct iwl_base_params iwl5000_base_params = { 324 .eeprom_size = IWLAGN_EEPROM_IMG_SIZE, 325 .num_of_queues = IWLAGN_NUM_QUEUES, 326 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES, 327 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL, 328 .led_compensation = 51, 329 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, 330 .chain_noise_scale = 1000, 331 .wd_timeout = IWL_LONG_WD_TIMEOUT, 332 .max_event_log_size = 512, 333 .no_idle_support = true, 334 .wd_disable = true, 335}; 336static struct iwl_ht_params iwl5000_ht_params = { 337 .ht_greenfield_support = true, 338}; 339 340#define IWL_DEVICE_5000 \ 341 .fw_name_pre = IWL5000_FW_PRE, \ 342 .ucode_api_max = IWL5000_UCODE_API_MAX, \ 343 .ucode_api_min = IWL5000_UCODE_API_MIN, \ 344 .max_inst_size = IWLAGN_RTC_INST_SIZE, \ 345 .max_data_size = IWLAGN_RTC_DATA_SIZE, \ 346 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \ 347 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \ 348 .lib = &iwl5000_lib, \ 349 .base_params = &iwl5000_base_params, \ 350 .led_mode = IWL_LED_BLINK 351 352const struct iwl_cfg iwl5300_agn_cfg = { 353 .name = "Intel(R) Ultimate N WiFi Link 5300 AGN", 354 IWL_DEVICE_5000, 355 /* at least EEPROM 0x11A has wrong info */ 356 .valid_tx_ant = ANT_ABC, /* .cfg overwrite */ 357 .valid_rx_ant = ANT_ABC, /* .cfg overwrite */ 358 .ht_params = &iwl5000_ht_params, 359}; 360 361const struct iwl_cfg iwl5100_bgn_cfg = { 362 .name = "Intel(R) WiFi Link 5100 BGN", 363 IWL_DEVICE_5000, 364 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 365 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 366 .ht_params = &iwl5000_ht_params, 367}; 368 369const struct iwl_cfg iwl5100_abg_cfg = { 370 .name = "Intel(R) WiFi Link 5100 ABG", 371 IWL_DEVICE_5000, 372 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 373 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 374}; 375 376const struct iwl_cfg iwl5100_agn_cfg = { 377 .name = "Intel(R) WiFi Link 5100 AGN", 378 IWL_DEVICE_5000, 379 .valid_tx_ant = ANT_B, /* .cfg overwrite */ 380 .valid_rx_ant = ANT_AB, /* .cfg overwrite */ 381 .ht_params = &iwl5000_ht_params, 382}; 383 384const struct iwl_cfg iwl5350_agn_cfg = { 385 .name = "Intel(R) WiMAX/WiFi Link 5350 AGN", 386 .fw_name_pre = IWL5000_FW_PRE, 387 .ucode_api_max = IWL5000_UCODE_API_MAX, 388 .ucode_api_min = IWL5000_UCODE_API_MIN, 389 .max_inst_size = IWLAGN_RTC_INST_SIZE, 390 .max_data_size = IWLAGN_RTC_DATA_SIZE, 391 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, 392 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, 393 .lib = &iwl5000_lib, 394 .base_params = &iwl5000_base_params, 395 .ht_params = &iwl5000_ht_params, 396 .led_mode = IWL_LED_BLINK, 397 .internal_wimax_coex = true, 398}; 399 400#define IWL_DEVICE_5150 \ 401 .fw_name_pre = IWL5150_FW_PRE, \ 402 .ucode_api_max = IWL5150_UCODE_API_MAX, \ 403 .ucode_api_min = IWL5150_UCODE_API_MIN, \ 404 .max_inst_size = IWLAGN_RTC_INST_SIZE, \ 405 .max_data_size = IWLAGN_RTC_DATA_SIZE, \ 406 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \ 407 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \ 408 .lib = &iwl5150_lib, \ 409 .base_params = &iwl5000_base_params, \ 410 .no_xtal_calib = true, \ 411 .led_mode = IWL_LED_BLINK, \ 412 .internal_wimax_coex = true 413 414const struct iwl_cfg iwl5150_agn_cfg = { 415 .name = "Intel(R) WiMAX/WiFi Link 5150 AGN", 416 IWL_DEVICE_5150, 417 .ht_params = &iwl5000_ht_params, 418 419}; 420 421const struct iwl_cfg iwl5150_abg_cfg = { 422 .name = "Intel(R) WiMAX/WiFi Link 5150 ABG", 423 IWL_DEVICE_5150, 424}; 425 426MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX)); 427MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX)); 428