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"
50 /* Highest firmware API version supported */
51 #define IWL5000_UCODE_API_MAX 5
52 #define IWL5150_UCODE_API_MAX 2
54 /* Lowest firmware API version supported */
55 #define IWL5000_UCODE_API_MIN 1
56 #define IWL5150_UCODE_API_MIN 1
58 #define IWL5000_FW_PRE "iwlwifi-5000-"
59 #define IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE __stringify(api) ".ucode"
61 #define IWL5150_FW_PRE "iwlwifi-5150-"
62 #define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE __stringify(api) ".ucode"
64 /* NIC configuration for 5000 series */
65 static void iwl5000_nic_config(struct iwl_priv
*priv
)
69 /* W/A : NIC is stuck in a reset state after Early PCIe power off
70 * (PCIe power is lost before PERST# is asserted),
71 * causing ME FW to lose ownership and not being able to obtain it back.
73 iwl_set_bits_mask_prph(trans(priv
), APMG_PS_CTRL_REG
,
74 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
,
75 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
);
78 static const struct iwl_sensitivity_ranges iwl5000_sensitivity
= {
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 .auto_corr_min_ofdm
= 90,
105 .auto_corr_min_ofdm_mrc
= 170,
106 .auto_corr_min_ofdm_x1
= 105,
107 .auto_corr_min_ofdm_mrc_x1
= 220,
109 .auto_corr_max_ofdm
= 120,
110 .auto_corr_max_ofdm_mrc
= 210,
111 /* max = min for performance bug in 5150 DSP */
112 .auto_corr_max_ofdm_x1
= 105,
113 .auto_corr_max_ofdm_mrc_x1
= 220,
115 .auto_corr_min_cck
= 125,
116 .auto_corr_max_cck
= 200,
117 .auto_corr_min_cck_mrc
= 170,
118 .auto_corr_max_cck_mrc
= 400,
122 .barker_corr_th_min
= 190,
123 .barker_corr_th_min_mrc
= 390,
127 #define IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF (-5)
129 static s32
iwl_temp_calib_to_offset(struct iwl_shared
*shrd
)
131 u16 temperature
, voltage
;
132 __le16
*temp_calib
= (__le16
*)iwl_eeprom_query_addr(shrd
,
133 EEPROM_KELVIN_TEMPERATURE
);
135 temperature
= le16_to_cpu(temp_calib
[0]);
136 voltage
= le16_to_cpu(temp_calib
[1]);
138 /* offset = temp - volt / coeff */
139 return (s32
)(temperature
- voltage
/ IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
);
142 static void iwl5150_set_ct_threshold(struct iwl_priv
*priv
)
144 const s32 volt2temp_coef
= IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
;
145 s32 threshold
= (s32
)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY
) -
146 iwl_temp_calib_to_offset(priv
->shrd
);
148 hw_params(priv
).ct_kill_threshold
= threshold
* volt2temp_coef
;
151 static void iwl5000_set_ct_threshold(struct iwl_priv
*priv
)
154 hw_params(priv
).ct_kill_threshold
= CT_KILL_THRESHOLD_LEGACY
;
157 static void iwl5000_hw_set_hw_params(struct iwl_priv
*priv
)
159 hw_params(priv
).ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
160 BIT(IEEE80211_BAND_5GHZ
);
162 hw_params(priv
).tx_chains_num
=
163 num_of_ant(hw_params(priv
).valid_tx_ant
);
164 hw_params(priv
).rx_chains_num
=
165 num_of_ant(hw_params(priv
).valid_rx_ant
);
167 iwl5000_set_ct_threshold(priv
);
169 /* Set initial sensitivity parameters */
170 hw_params(priv
).sens
= &iwl5000_sensitivity
;
173 static void iwl5150_hw_set_hw_params(struct iwl_priv
*priv
)
175 hw_params(priv
).ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
176 BIT(IEEE80211_BAND_5GHZ
);
178 hw_params(priv
).tx_chains_num
=
179 num_of_ant(hw_params(priv
).valid_tx_ant
);
180 hw_params(priv
).rx_chains_num
=
181 num_of_ant(hw_params(priv
).valid_rx_ant
);
183 iwl5150_set_ct_threshold(priv
);
185 /* Set initial sensitivity parameters */
186 hw_params(priv
).sens
= &iwl5150_sensitivity
;
189 static void iwl5150_temperature(struct iwl_priv
*priv
)
192 s32 offset
= iwl_temp_calib_to_offset(priv
->shrd
);
194 vt
= le32_to_cpu(priv
->statistics
.common
.temperature
);
195 vt
= vt
/ IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
+ offset
;
196 /* now vt hold the temperature in Kelvin */
197 priv
->temperature
= KELVIN_TO_CELSIUS(vt
);
198 iwl_tt_handler(priv
);
201 static int iwl5000_hw_channel_switch(struct iwl_priv
*priv
,
202 struct ieee80211_channel_switch
*ch_switch
)
206 * See iwlagn_mac_channel_switch.
208 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
209 struct iwl5000_channel_switch_cmd cmd
;
210 const struct iwl_channel_info
*ch_info
;
211 u32 switch_time_in_usec
, ucode_switch_time
;
215 u16 beacon_interval
= le16_to_cpu(ctx
->timing
.beacon_interval
);
216 struct ieee80211_vif
*vif
= ctx
->vif
;
217 struct iwl_host_cmd hcmd
= {
218 .id
= REPLY_CHANNEL_SWITCH
,
219 .len
= { sizeof(cmd
), },
224 cmd
.band
= priv
->band
== IEEE80211_BAND_2GHZ
;
225 ch
= ch_switch
->channel
->hw_value
;
226 IWL_DEBUG_11H(priv
, "channel switch from %d to %d\n",
227 ctx
->active
.channel
, ch
);
228 cmd
.channel
= cpu_to_le16(ch
);
229 cmd
.rxon_flags
= ctx
->staging
.flags
;
230 cmd
.rxon_filter_flags
= ctx
->staging
.filter_flags
;
231 switch_count
= ch_switch
->count
;
232 tsf_low
= ch_switch
->timestamp
& 0x0ffffffff;
234 * calculate the ucode channel switch time
235 * adding TSF as one of the factor for when to switch
237 if ((priv
->ucode_beacon_time
> tsf_low
) && beacon_interval
) {
238 if (switch_count
> ((priv
->ucode_beacon_time
- tsf_low
) /
240 switch_count
-= (priv
->ucode_beacon_time
-
241 tsf_low
) / beacon_interval
;
245 if (switch_count
<= 1)
246 cmd
.switch_time
= cpu_to_le32(priv
->ucode_beacon_time
);
248 switch_time_in_usec
=
249 vif
->bss_conf
.beacon_int
* switch_count
* TIME_UNIT
;
250 ucode_switch_time
= iwl_usecs_to_beacons(priv
,
253 cmd
.switch_time
= iwl_add_beacon_time(priv
,
254 priv
->ucode_beacon_time
,
258 IWL_DEBUG_11H(priv
, "uCode time for the switch is 0x%x\n",
260 ch_info
= iwl_get_channel_info(priv
, priv
->band
, ch
);
262 cmd
.expect_beacon
= is_channel_radar(ch_info
);
264 IWL_ERR(priv
, "invalid channel switch from %u to %u\n",
265 ctx
->active
.channel
, ch
);
269 return iwl_dvm_send_cmd(priv
, &hcmd
);
272 static struct iwl_lib_ops iwl5000_lib
= {
273 .set_hw_params
= iwl5000_hw_set_hw_params
,
274 .set_channel_switch
= iwl5000_hw_channel_switch
,
275 .nic_config
= iwl5000_nic_config
,
277 .regulatory_bands
= {
278 EEPROM_REG_BAND_1_CHANNELS
,
279 EEPROM_REG_BAND_2_CHANNELS
,
280 EEPROM_REG_BAND_3_CHANNELS
,
281 EEPROM_REG_BAND_4_CHANNELS
,
282 EEPROM_REG_BAND_5_CHANNELS
,
283 EEPROM_REG_BAND_24_HT40_CHANNELS
,
284 EEPROM_REG_BAND_52_HT40_CHANNELS
287 .temperature
= iwlagn_temperature
,
290 static struct iwl_lib_ops iwl5150_lib
= {
291 .set_hw_params
= iwl5150_hw_set_hw_params
,
292 .set_channel_switch
= iwl5000_hw_channel_switch
,
293 .nic_config
= iwl5000_nic_config
,
295 .regulatory_bands
= {
296 EEPROM_REG_BAND_1_CHANNELS
,
297 EEPROM_REG_BAND_2_CHANNELS
,
298 EEPROM_REG_BAND_3_CHANNELS
,
299 EEPROM_REG_BAND_4_CHANNELS
,
300 EEPROM_REG_BAND_5_CHANNELS
,
301 EEPROM_REG_BAND_24_HT40_CHANNELS
,
302 EEPROM_REG_BAND_52_HT40_CHANNELS
305 .temperature
= iwl5150_temperature
,
308 static const struct iwl_base_params iwl5000_base_params
= {
309 .eeprom_size
= IWLAGN_EEPROM_IMG_SIZE
,
310 .num_of_queues
= IWLAGN_NUM_QUEUES
,
311 .num_of_ampdu_queues
= IWLAGN_NUM_AMPDU_QUEUES
,
312 .pll_cfg_val
= CSR50_ANA_PLL_CFG_VAL
,
313 .led_compensation
= 51,
314 .plcp_delta_threshold
= IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF
,
315 .chain_noise_scale
= 1000,
316 .wd_timeout
= IWL_LONG_WD_TIMEOUT
,
317 .max_event_log_size
= 512,
318 .no_idle_support
= true,
322 static const struct iwl_ht_params iwl5000_ht_params
= {
323 .ht_greenfield_support
= true,
326 #define IWL_DEVICE_5000 \
327 .fw_name_pre = IWL5000_FW_PRE, \
328 .ucode_api_max = IWL5000_UCODE_API_MAX, \
329 .ucode_api_min = IWL5000_UCODE_API_MIN, \
330 .max_inst_size = IWLAGN_RTC_INST_SIZE, \
331 .max_data_size = IWLAGN_RTC_DATA_SIZE, \
332 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \
333 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \
334 .lib = &iwl5000_lib, \
335 .base_params = &iwl5000_base_params, \
336 .led_mode = IWL_LED_BLINK
338 const struct iwl_cfg iwl5300_agn_cfg
= {
339 .name
= "Intel(R) Ultimate N WiFi Link 5300 AGN",
341 /* at least EEPROM 0x11A has wrong info */
342 .valid_tx_ant
= ANT_ABC
, /* .cfg overwrite */
343 .valid_rx_ant
= ANT_ABC
, /* .cfg overwrite */
344 .ht_params
= &iwl5000_ht_params
,
347 const struct iwl_cfg iwl5100_bgn_cfg
= {
348 .name
= "Intel(R) WiFi Link 5100 BGN",
350 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
351 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
352 .ht_params
= &iwl5000_ht_params
,
355 const struct iwl_cfg iwl5100_abg_cfg
= {
356 .name
= "Intel(R) WiFi Link 5100 ABG",
358 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
359 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
362 const struct iwl_cfg iwl5100_agn_cfg
= {
363 .name
= "Intel(R) WiFi Link 5100 AGN",
365 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
366 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
367 .ht_params
= &iwl5000_ht_params
,
370 const struct iwl_cfg iwl5350_agn_cfg
= {
371 .name
= "Intel(R) WiMAX/WiFi Link 5350 AGN",
372 .fw_name_pre
= IWL5000_FW_PRE
,
373 .ucode_api_max
= IWL5000_UCODE_API_MAX
,
374 .ucode_api_min
= IWL5000_UCODE_API_MIN
,
375 .max_inst_size
= IWLAGN_RTC_INST_SIZE
,
376 .max_data_size
= IWLAGN_RTC_DATA_SIZE
,
377 .eeprom_ver
= EEPROM_5050_EEPROM_VERSION
,
378 .eeprom_calib_ver
= EEPROM_5050_TX_POWER_VERSION
,
380 .base_params
= &iwl5000_base_params
,
381 .ht_params
= &iwl5000_ht_params
,
382 .led_mode
= IWL_LED_BLINK
,
383 .internal_wimax_coex
= true,
386 #define IWL_DEVICE_5150 \
387 .fw_name_pre = IWL5150_FW_PRE, \
388 .ucode_api_max = IWL5150_UCODE_API_MAX, \
389 .ucode_api_min = IWL5150_UCODE_API_MIN, \
390 .max_inst_size = IWLAGN_RTC_INST_SIZE, \
391 .max_data_size = IWLAGN_RTC_DATA_SIZE, \
392 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \
393 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \
394 .lib = &iwl5150_lib, \
395 .base_params = &iwl5000_base_params, \
396 .no_xtal_calib = true, \
397 .led_mode = IWL_LED_BLINK, \
398 .internal_wimax_coex = true
400 const struct iwl_cfg iwl5150_agn_cfg
= {
401 .name
= "Intel(R) WiMAX/WiFi Link 5150 AGN",
403 .ht_params
= &iwl5000_ht_params
,
407 const struct iwl_cfg iwl5150_abg_cfg
= {
408 .name
= "Intel(R) WiMAX/WiFi Link 5150 ABG",
412 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX
));
413 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX
));