iwlagn: use cts-to-self protection on 5000 adapters series
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / iwlwifi / iwl-5000.c
blobf99f9c1933524e6d06af64f191341fd67057dbce
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
12 * more details.
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"
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"
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)
68 unsigned long flags;
69 u16 radio_cfg;
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 = {
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,
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,
116 .nrg_th_cck = 95,
117 .nrg_th_ofdm = 95,
119 .barker_corr_th_min = 190,
120 .barker_corr_th_min_mrc = 390,
121 .nrg_th_cca = 62,
124 static 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,
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,
142 .nrg_th_cck = 95,
143 .nrg_th_ofdm = 95,
145 .barker_corr_th_min = 190,
146 .barker_corr_th_min_mrc = 390,
147 .nrg_th_cca = 62,
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)
161 /* want Celsius */
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) |
200 BIT(IWL_CALIB_LO) |
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;
207 return 0;
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 =
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);
250 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
252 return 0;
255 static void iwl5150_temperature(struct iwl_priv *priv)
257 u32 vt = 0;
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)
271 * MULTI-FIXME
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;
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, },
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) /
305 beacon_interval)) {
306 switch_count -= (priv->ucode_beacon_time -
307 tsf_low) / beacon_interval;
308 } else
309 switch_count = 0;
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);
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;
335 return iwl_send_cmd_sync(priv, &hcmd);
338 static struct iwl_lib_ops iwl5000_lib = {
339 .set_hw_params = iwl5000_hw_set_hw_params,
340 .rx_handler_setup = iwlagn_rx_handler_setup,
341 .setup_deferred_work = iwlagn_setup_deferred_work,
342 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
343 .send_tx_power = iwlagn_send_tx_power,
344 .update_chain_flags = iwl_update_chain_flags,
345 .set_channel_switch = iwl5000_hw_channel_switch,
346 .apm_ops = {
347 .init = iwl_apm_init,
348 .config = iwl5000_nic_config,
350 .eeprom_ops = {
351 .regulatory_bands = {
352 EEPROM_REG_BAND_1_CHANNELS,
353 EEPROM_REG_BAND_2_CHANNELS,
354 EEPROM_REG_BAND_3_CHANNELS,
355 EEPROM_REG_BAND_4_CHANNELS,
356 EEPROM_REG_BAND_5_CHANNELS,
357 EEPROM_REG_BAND_24_HT40_CHANNELS,
358 EEPROM_REG_BAND_52_HT40_CHANNELS
360 .query_addr = iwlagn_eeprom_query_addr,
362 .temp_ops = {
363 .temperature = iwlagn_temperature,
365 .txfifo_flush = iwlagn_txfifo_flush,
366 .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
369 static struct iwl_lib_ops iwl5150_lib = {
370 .set_hw_params = iwl5150_hw_set_hw_params,
371 .rx_handler_setup = iwlagn_rx_handler_setup,
372 .setup_deferred_work = iwlagn_setup_deferred_work,
373 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
374 .send_tx_power = iwlagn_send_tx_power,
375 .update_chain_flags = iwl_update_chain_flags,
376 .set_channel_switch = iwl5000_hw_channel_switch,
377 .apm_ops = {
378 .init = iwl_apm_init,
379 .config = iwl5000_nic_config,
381 .eeprom_ops = {
382 .regulatory_bands = {
383 EEPROM_REG_BAND_1_CHANNELS,
384 EEPROM_REG_BAND_2_CHANNELS,
385 EEPROM_REG_BAND_3_CHANNELS,
386 EEPROM_REG_BAND_4_CHANNELS,
387 EEPROM_REG_BAND_5_CHANNELS,
388 EEPROM_REG_BAND_24_HT40_CHANNELS,
389 EEPROM_REG_BAND_52_HT40_CHANNELS
391 .query_addr = iwlagn_eeprom_query_addr,
393 .temp_ops = {
394 .temperature = iwl5150_temperature,
396 .txfifo_flush = iwlagn_txfifo_flush,
397 .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
400 static const struct iwl_ops iwl5000_ops = {
401 .lib = &iwl5000_lib,
402 .hcmd = &iwlagn_hcmd,
403 .utils = &iwlagn_hcmd_utils,
406 static const struct iwl_ops iwl5150_ops = {
407 .lib = &iwl5150_lib,
408 .hcmd = &iwlagn_hcmd,
409 .utils = &iwlagn_hcmd_utils,
412 static struct iwl_base_params iwl5000_base_params = {
413 .eeprom_size = IWLAGN_EEPROM_IMG_SIZE,
414 .num_of_queues = IWLAGN_NUM_QUEUES,
415 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
416 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
417 .led_compensation = 51,
418 .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
419 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
420 .chain_noise_scale = 1000,
421 .wd_timeout = IWL_LONG_WD_TIMEOUT,
422 .max_event_log_size = 512,
424 static struct iwl_ht_params iwl5000_ht_params = {
425 .ht_greenfield_support = true,
428 #define IWL_DEVICE_5000 \
429 .fw_name_pre = IWL5000_FW_PRE, \
430 .ucode_api_max = IWL5000_UCODE_API_MAX, \
431 .ucode_api_min = IWL5000_UCODE_API_MIN, \
432 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \
433 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \
434 .ops = &iwl5000_ops, \
435 .base_params = &iwl5000_base_params, \
436 .led_mode = IWL_LED_BLINK
438 struct iwl_cfg iwl5300_agn_cfg = {
439 .name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
440 IWL_DEVICE_5000,
441 /* at least EEPROM 0x11A has wrong info */
442 .valid_tx_ant = ANT_ABC, /* .cfg overwrite */
443 .valid_rx_ant = ANT_ABC, /* .cfg overwrite */
444 .ht_params = &iwl5000_ht_params,
447 struct iwl_cfg iwl5100_bgn_cfg = {
448 .name = "Intel(R) WiFi Link 5100 BGN",
449 IWL_DEVICE_5000,
450 .valid_tx_ant = ANT_B, /* .cfg overwrite */
451 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
452 .ht_params = &iwl5000_ht_params,
455 struct iwl_cfg iwl5100_abg_cfg = {
456 .name = "Intel(R) WiFi Link 5100 ABG",
457 IWL_DEVICE_5000,
458 .valid_tx_ant = ANT_B, /* .cfg overwrite */
459 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
462 struct iwl_cfg iwl5100_agn_cfg = {
463 .name = "Intel(R) WiFi Link 5100 AGN",
464 IWL_DEVICE_5000,
465 .valid_tx_ant = ANT_B, /* .cfg overwrite */
466 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
467 .ht_params = &iwl5000_ht_params,
470 struct iwl_cfg iwl5350_agn_cfg = {
471 .name = "Intel(R) WiMAX/WiFi Link 5350 AGN",
472 .fw_name_pre = IWL5000_FW_PRE,
473 .ucode_api_max = IWL5000_UCODE_API_MAX,
474 .ucode_api_min = IWL5000_UCODE_API_MIN,
475 .eeprom_ver = EEPROM_5050_EEPROM_VERSION,
476 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
477 .ops = &iwl5000_ops,
478 .base_params = &iwl5000_base_params,
479 .ht_params = &iwl5000_ht_params,
480 .led_mode = IWL_LED_BLINK,
481 .internal_wimax_coex = true,
484 #define IWL_DEVICE_5150 \
485 .fw_name_pre = IWL5150_FW_PRE, \
486 .ucode_api_max = IWL5150_UCODE_API_MAX, \
487 .ucode_api_min = IWL5150_UCODE_API_MIN, \
488 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \
489 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \
490 .ops = &iwl5150_ops, \
491 .base_params = &iwl5000_base_params, \
492 .need_dc_calib = true, \
493 .led_mode = IWL_LED_BLINK, \
494 .internal_wimax_coex = true
496 struct iwl_cfg iwl5150_agn_cfg = {
497 .name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
498 IWL_DEVICE_5150,
499 .ht_params = &iwl5000_ht_params,
503 struct iwl_cfg iwl5150_abg_cfg = {
504 .name = "Intel(R) WiMAX/WiFi Link 5150 ABG",
505 IWL_DEVICE_5150,
508 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));
509 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX));