1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
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.
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
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
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
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>
41 #include "iwl-eeprom.h"
46 #include "iwl-helpers.h"
48 #include "iwl-agn-hw.h"
49 #include "iwl-5000-hw.h"
51 /* Highest firmware API version supported */
52 #define IWL5000_UCODE_API_MAX 5
53 #define IWL5150_UCODE_API_MAX 2
55 /* Lowest firmware API version supported */
56 #define IWL5000_UCODE_API_MIN 1
57 #define IWL5150_UCODE_API_MIN 1
59 #define IWL5000_FW_PRE "iwlwifi-5000-"
60 #define IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE #api ".ucode"
62 #define IWL5150_FW_PRE "iwlwifi-5150-"
63 #define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE #api ".ucode"
65 /* NIC configuration for 5000 series */
66 static void iwl5000_nic_config(struct iwl_priv *priv)
71 spin_lock_irqsave(&priv->lock, flags);
73 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
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));
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);
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.
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);
96 spin_unlock_irqrestore(&priv->lock, flags);
99 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
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,
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,
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,
119 .barker_corr_th_min = 190,
120 .barker_corr_th_min_mrc = 390,
124 static struct iwl_sensitivity_ranges iwl5150_sensitivity = {
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,
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,
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,
145 .barker_corr_th_min = 190,
146 .barker_corr_th_min_mrc = 390,
150 static void iwl5150_set_ct_threshold(struct iwl_priv *priv)
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);
156 priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef;
159 static void iwl5000_set_ct_threshold(struct iwl_priv *priv)
162 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
165 static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
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;
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;
181 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
182 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
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;
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;
193 iwl5000_set_ct_threshold(priv);
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) |
201 BIT(IWL_CALIB_TX_IQ) |
202 BIT(IWL_CALIB_TX_IQ_PERD) |
203 BIT(IWL_CALIB_BASE_BAND);
205 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
210 static int iwl5150_hw_set_hw_params(struct iwl_priv *priv)
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;
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;
226 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
227 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
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;
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;
238 iwl5150_set_ct_threshold(priv);
240 /* Set initial sensitivity parameters */
241 /* Set initial calibration set */
242 priv->hw_params.sens = &iwl5150_sensitivity;
243 priv->hw_params.calib_init_cfg =
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);
250 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
255 static void iwl5150_temperature(struct iwl_priv *priv)
258 s32 offset = iwl_temp_calib_to_offset(priv);
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);
267 static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
268 struct ieee80211_channel_switch *ch_switch)
272 * See iwl_mac_channel_switch.
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;
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,
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;
300 * calculate the ucode channel switch time
301 * adding TSF as one of the factor for when to switch
303 if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) {
304 if (switch_count > ((priv->ucode_beacon_time - tsf_low) /
306 switch_count -= (priv->ucode_beacon_time -
307 tsf_low) / beacon_interval;
311 if (switch_count <= 1)
312 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
314 switch_time_in_usec =
315 vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
316 ucode_switch_time = iwl_usecs_to_beacons(priv,
319 cmd.switch_time = iwl_add_beacon_time(priv,
320 priv->ucode_beacon_time,
324 IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
326 ch_info = iwl_get_channel_info(priv, priv->band, ch);
328 cmd.expect_beacon = is_channel_radar(ch_info);
330 IWL_ERR(priv, "invalid channel switch from %u to %u\n",
331 ctx->active.channel, ch);
334 priv->switch_rxon.channel = cmd.channel;
335 priv->switch_rxon.switch_in_progress = true;
337 return iwl_send_cmd_sync(priv, &hcmd);
340 static struct iwl_lib_ops iwl5000_lib = {
341 .set_hw_params = iwl5000_hw_set_hw_params,
342 .txq_set_sched = iwlagn_txq_set_sched,
343 .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
344 .txq_free_tfd = iwl_hw_txq_free_tfd,
345 .txq_init = iwl_hw_tx_queue_init,
346 .rx_handler_setup = iwlagn_rx_handler_setup,
347 .setup_deferred_work = iwlagn_setup_deferred_work,
348 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
349 .send_tx_power = iwlagn_send_tx_power,
350 .update_chain_flags = iwl_update_chain_flags,
351 .set_channel_switch = iwl5000_hw_channel_switch,
353 .init = iwl_apm_init,
354 .config = iwl5000_nic_config,
357 .regulatory_bands = {
358 EEPROM_REG_BAND_1_CHANNELS,
359 EEPROM_REG_BAND_2_CHANNELS,
360 EEPROM_REG_BAND_3_CHANNELS,
361 EEPROM_REG_BAND_4_CHANNELS,
362 EEPROM_REG_BAND_5_CHANNELS,
363 EEPROM_REG_BAND_24_HT40_CHANNELS,
364 EEPROM_REG_BAND_52_HT40_CHANNELS
366 .query_addr = iwlagn_eeprom_query_addr,
369 .temperature = iwlagn_temperature,
371 .txfifo_flush = iwlagn_txfifo_flush,
372 .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
375 static struct iwl_lib_ops iwl5150_lib = {
376 .set_hw_params = iwl5150_hw_set_hw_params,
377 .txq_set_sched = iwlagn_txq_set_sched,
378 .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
379 .txq_free_tfd = iwl_hw_txq_free_tfd,
380 .txq_init = iwl_hw_tx_queue_init,
381 .rx_handler_setup = iwlagn_rx_handler_setup,
382 .setup_deferred_work = iwlagn_setup_deferred_work,
383 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
384 .send_tx_power = iwlagn_send_tx_power,
385 .update_chain_flags = iwl_update_chain_flags,
386 .set_channel_switch = iwl5000_hw_channel_switch,
388 .init = iwl_apm_init,
389 .config = iwl5000_nic_config,
392 .regulatory_bands = {
393 EEPROM_REG_BAND_1_CHANNELS,
394 EEPROM_REG_BAND_2_CHANNELS,
395 EEPROM_REG_BAND_3_CHANNELS,
396 EEPROM_REG_BAND_4_CHANNELS,
397 EEPROM_REG_BAND_5_CHANNELS,
398 EEPROM_REG_BAND_24_HT40_CHANNELS,
399 EEPROM_REG_BAND_52_HT40_CHANNELS
401 .query_addr = iwlagn_eeprom_query_addr,
404 .temperature = iwl5150_temperature,
406 .txfifo_flush = iwlagn_txfifo_flush,
407 .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
410 static const struct iwl_ops iwl5000_ops = {
412 .hcmd = &iwlagn_hcmd,
413 .utils = &iwlagn_hcmd_utils,
416 static const struct iwl_ops iwl5150_ops = {
418 .hcmd = &iwlagn_hcmd,
419 .utils = &iwlagn_hcmd_utils,
422 static struct iwl_base_params iwl5000_base_params = {
423 .eeprom_size = IWLAGN_EEPROM_IMG_SIZE,
424 .num_of_queues = IWLAGN_NUM_QUEUES,
425 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
426 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
427 .led_compensation = 51,
428 .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
429 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
430 .chain_noise_scale = 1000,
431 .wd_timeout = IWL_LONG_WD_TIMEOUT,
432 .max_event_log_size = 512,
434 static struct iwl_ht_params iwl5000_ht_params = {
435 .ht_greenfield_support = true,
436 .use_rts_for_aggregation = true, /* use rts/cts protection */
439 #define IWL_DEVICE_5000 \
440 .fw_name_pre = IWL5000_FW_PRE, \
441 .ucode_api_max = IWL5000_UCODE_API_MAX, \
442 .ucode_api_min = IWL5000_UCODE_API_MIN, \
443 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \
444 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \
445 .ops = &iwl5000_ops, \
446 .base_params = &iwl5000_base_params, \
447 .led_mode = IWL_LED_BLINK
449 struct iwl_cfg iwl5300_agn_cfg = {
450 .name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
452 /* at least EEPROM 0x11A has wrong info */
453 .valid_tx_ant = ANT_ABC, /* .cfg overwrite */
454 .valid_rx_ant = ANT_ABC, /* .cfg overwrite */
455 .ht_params = &iwl5000_ht_params,
458 struct iwl_cfg iwl5100_bgn_cfg = {
459 .name = "Intel(R) WiFi Link 5100 BGN",
461 .valid_tx_ant = ANT_B, /* .cfg overwrite */
462 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
463 .ht_params = &iwl5000_ht_params,
466 struct iwl_cfg iwl5100_abg_cfg = {
467 .name = "Intel(R) WiFi Link 5100 ABG",
469 .valid_tx_ant = ANT_B, /* .cfg overwrite */
470 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
473 struct iwl_cfg iwl5100_agn_cfg = {
474 .name = "Intel(R) WiFi Link 5100 AGN",
476 .valid_tx_ant = ANT_B, /* .cfg overwrite */
477 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
478 .ht_params = &iwl5000_ht_params,
481 struct iwl_cfg iwl5350_agn_cfg = {
482 .name = "Intel(R) WiMAX/WiFi Link 5350 AGN",
483 .fw_name_pre = IWL5000_FW_PRE,
484 .ucode_api_max = IWL5000_UCODE_API_MAX,
485 .ucode_api_min = IWL5000_UCODE_API_MIN,
486 .eeprom_ver = EEPROM_5050_EEPROM_VERSION,
487 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
489 .base_params = &iwl5000_base_params,
490 .ht_params = &iwl5000_ht_params,
491 .led_mode = IWL_LED_BLINK,
492 .internal_wimax_coex = true,
495 #define IWL_DEVICE_5150 \
496 .fw_name_pre = IWL5150_FW_PRE, \
497 .ucode_api_max = IWL5150_UCODE_API_MAX, \
498 .ucode_api_min = IWL5150_UCODE_API_MIN, \
499 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \
500 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \
501 .ops = &iwl5150_ops, \
502 .base_params = &iwl5000_base_params, \
503 .need_dc_calib = true, \
504 .led_mode = IWL_LED_BLINK, \
505 .internal_wimax_coex = true
507 struct iwl_cfg iwl5150_agn_cfg = {
508 .name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
510 .ht_params = &iwl5000_ht_params,
514 struct iwl_cfg iwl5150_abg_cfg = {
515 .name = "Intel(R) WiMAX/WiFi Link 5150 ABG",
519 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));
520 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX));