1 /******************************************************************************
3 * Copyright(c) 2007 - 2012 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/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>
39 #include "iwl-eeprom.h"
44 #include "iwl-agn-hw.h"
45 #include "iwl-trans.h"
46 #include "iwl-shared.h"
49 /* Highest firmware API version supported */
50 #define IWL5000_UCODE_API_MAX 5
51 #define IWL5150_UCODE_API_MAX 2
53 /* Lowest firmware API version supported */
54 #define IWL5000_UCODE_API_MIN 1
55 #define IWL5150_UCODE_API_MIN 1
57 #define IWL5000_FW_PRE "iwlwifi-5000-"
58 #define IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE __stringify(api) ".ucode"
60 #define IWL5150_FW_PRE "iwlwifi-5150-"
61 #define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE __stringify(api) ".ucode"
63 /* NIC configuration for 5000 series */
64 static void iwl5000_nic_config(struct iwl_priv *priv)
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.
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);
77 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
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,
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,
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,
97 .barker_corr_th_min = 190,
98 .barker_corr_th_min_mrc = 390,
102 static struct iwl_sensitivity_ranges iwl5150_sensitivity = {
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,
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,
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,
123 .barker_corr_th_min = 190,
124 .barker_corr_th_min_mrc = 390,
128 #define IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF (-5)
130 static s32 iwl_temp_calib_to_offset(struct iwl_shared *shrd)
132 u16 temperature, voltage;
133 __le16 *temp_calib = (__le16 *)iwl_eeprom_query_addr(shrd,
134 EEPROM_KELVIN_TEMPERATURE);
136 temperature = le16_to_cpu(temp_calib[0]);
137 voltage = le16_to_cpu(temp_calib[1]);
139 /* offset = temp - volt / coeff */
140 return (s32)(temperature - voltage / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF);
143 static void iwl5150_set_ct_threshold(struct iwl_priv *priv)
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);
149 hw_params(priv).ct_kill_threshold = threshold * volt2temp_coef;
152 static void iwl5000_set_ct_threshold(struct iwl_priv *priv)
155 hw_params(priv).ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
158 static void iwl5000_hw_set_hw_params(struct iwl_priv *priv)
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;
165 hw_params(priv).max_txq_num = cfg(priv)->base_params->num_of_queues;
167 hw_params(priv).ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
168 BIT(IEEE80211_BAND_5GHZ);
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);
175 iwl5000_set_ct_threshold(priv);
177 /* Set initial sensitivity parameters */
178 hw_params(priv).sens = &iwl5000_sensitivity;
181 static void iwl5150_hw_set_hw_params(struct iwl_priv *priv)
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;
188 hw_params(priv).max_txq_num = cfg(priv)->base_params->num_of_queues;
190 hw_params(priv).ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
191 BIT(IEEE80211_BAND_5GHZ);
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);
198 iwl5150_set_ct_threshold(priv);
200 /* Set initial sensitivity parameters */
201 hw_params(priv).sens = &iwl5150_sensitivity;
204 static void iwl5150_temperature(struct iwl_priv *priv)
207 s32 offset = iwl_temp_calib_to_offset(priv->shrd);
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);
216 static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
217 struct ieee80211_channel_switch *ch_switch)
221 * See iwlagn_mac_channel_switch.
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;
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), },
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;
249 * calculate the ucode channel switch time
250 * adding TSF as one of the factor for when to switch
252 if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) {
253 if (switch_count > ((priv->ucode_beacon_time - tsf_low) /
255 switch_count -= (priv->ucode_beacon_time -
256 tsf_low) / beacon_interval;
260 if (switch_count <= 1)
261 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
263 switch_time_in_usec =
264 vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
265 ucode_switch_time = iwl_usecs_to_beacons(priv,
268 cmd.switch_time = iwl_add_beacon_time(priv,
269 priv->ucode_beacon_time,
273 IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
275 ch_info = iwl_get_channel_info(priv, priv->band, ch);
277 cmd.expect_beacon = is_channel_radar(ch_info);
279 IWL_ERR(priv, "invalid channel switch from %u to %u\n",
280 ctx->active.channel, ch);
284 return iwl_trans_send_cmd(trans(priv), &hcmd);
287 static 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,
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
302 .temperature = iwlagn_temperature,
305 static 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,
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
320 .temperature = iwl5150_temperature,
323 static 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,
336 static struct iwl_ht_params iwl5000_ht_params = {
337 .ht_greenfield_support = true,
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
352 struct iwl_cfg iwl5300_agn_cfg = {
353 .name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
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,
361 struct iwl_cfg iwl5100_bgn_cfg = {
362 .name = "Intel(R) WiFi Link 5100 BGN",
364 .valid_tx_ant = ANT_B, /* .cfg overwrite */
365 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
366 .ht_params = &iwl5000_ht_params,
369 struct iwl_cfg iwl5100_abg_cfg = {
370 .name = "Intel(R) WiFi Link 5100 ABG",
372 .valid_tx_ant = ANT_B, /* .cfg overwrite */
373 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
376 struct iwl_cfg iwl5100_agn_cfg = {
377 .name = "Intel(R) WiFi Link 5100 AGN",
379 .valid_tx_ant = ANT_B, /* .cfg overwrite */
380 .valid_rx_ant = ANT_AB, /* .cfg overwrite */
381 .ht_params = &iwl5000_ht_params,
384 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,
394 .base_params = &iwl5000_base_params,
395 .ht_params = &iwl5000_ht_params,
396 .led_mode = IWL_LED_BLINK,
397 .internal_wimax_coex = true,
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
414 struct iwl_cfg iwl5150_agn_cfg = {
415 .name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
417 .ht_params = &iwl5000_ht_params,
421 struct iwl_cfg iwl5150_abg_cfg = {
422 .name = "Intel(R) WiMAX/WiFi Link 5150 ABG",
426 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));
427 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX));