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 const 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 const 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 const 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 const 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 const 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 const struct iwl_cfg iwl5150_agn_cfg
= {
415 .name
= "Intel(R) WiMAX/WiFi Link 5150 AGN",
417 .ht_params
= &iwl5000_ht_params
,
421 const 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
));