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/delay.h>
31 #include <linux/sched.h>
32 #include <linux/skbuff.h>
33 #include <linux/netdevice.h>
34 #include <linux/wireless.h>
35 #include <net/mac80211.h>
36 #include <linux/etherdevice.h>
37 #include <asm/unaligned.h>
38 #include <linux/stringify.h>
40 #include "iwl-eeprom.h"
45 #include "iwl-helpers.h"
47 #include "iwl-agn-hw.h"
48 #include "iwl-5000-hw.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
)
71 spin_lock_irqsave(&priv
->lock
, flags
);
73 /* W/A : NIC is stuck in a reset state after Early PCIe power off
74 * (PCIe power is lost before PERST# is asserted),
75 * causing ME FW to lose ownership and not being able to obtain it back.
77 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
78 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
,
79 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
);
82 spin_unlock_irqrestore(&priv
->lock
, flags
);
85 static struct iwl_sensitivity_ranges iwl5000_sensitivity
= {
87 .max_nrg_cck
= 0, /* not used, set to 0 */
88 .auto_corr_min_ofdm
= 90,
89 .auto_corr_min_ofdm_mrc
= 170,
90 .auto_corr_min_ofdm_x1
= 120,
91 .auto_corr_min_ofdm_mrc_x1
= 240,
93 .auto_corr_max_ofdm
= 120,
94 .auto_corr_max_ofdm_mrc
= 210,
95 .auto_corr_max_ofdm_x1
= 120,
96 .auto_corr_max_ofdm_mrc_x1
= 240,
98 .auto_corr_min_cck
= 125,
99 .auto_corr_max_cck
= 200,
100 .auto_corr_min_cck_mrc
= 170,
101 .auto_corr_max_cck_mrc
= 400,
105 .barker_corr_th_min
= 190,
106 .barker_corr_th_min_mrc
= 390,
110 static struct iwl_sensitivity_ranges iwl5150_sensitivity
= {
112 .max_nrg_cck
= 0, /* not used, set to 0 */
113 .auto_corr_min_ofdm
= 90,
114 .auto_corr_min_ofdm_mrc
= 170,
115 .auto_corr_min_ofdm_x1
= 105,
116 .auto_corr_min_ofdm_mrc_x1
= 220,
118 .auto_corr_max_ofdm
= 120,
119 .auto_corr_max_ofdm_mrc
= 210,
120 /* max = min for performance bug in 5150 DSP */
121 .auto_corr_max_ofdm_x1
= 105,
122 .auto_corr_max_ofdm_mrc_x1
= 220,
124 .auto_corr_min_cck
= 125,
125 .auto_corr_max_cck
= 200,
126 .auto_corr_min_cck_mrc
= 170,
127 .auto_corr_max_cck_mrc
= 400,
131 .barker_corr_th_min
= 190,
132 .barker_corr_th_min_mrc
= 390,
136 static void iwl5150_set_ct_threshold(struct iwl_priv
*priv
)
138 const s32 volt2temp_coef
= IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
;
139 s32 threshold
= (s32
)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY
) -
140 iwl_temp_calib_to_offset(priv
);
142 priv
->hw_params
.ct_kill_threshold
= threshold
* volt2temp_coef
;
145 static void iwl5000_set_ct_threshold(struct iwl_priv
*priv
)
148 priv
->hw_params
.ct_kill_threshold
= CT_KILL_THRESHOLD_LEGACY
;
151 static int iwl5000_hw_set_hw_params(struct iwl_priv
*priv
)
153 if (iwlagn_mod_params
.num_of_queues
>= IWL_MIN_NUM_QUEUES
&&
154 iwlagn_mod_params
.num_of_queues
<= IWLAGN_NUM_QUEUES
)
155 priv
->cfg
->base_params
->num_of_queues
=
156 iwlagn_mod_params
.num_of_queues
;
158 priv
->hw_params
.max_txq_num
= priv
->cfg
->base_params
->num_of_queues
;
159 priv
->hw_params
.dma_chnl_num
= FH50_TCSR_CHNL_NUM
;
160 priv
->hw_params
.scd_bc_tbls_size
=
161 priv
->cfg
->base_params
->num_of_queues
*
162 sizeof(struct iwlagn_scd_bc_tbl
);
163 priv
->hw_params
.tfd_size
= sizeof(struct iwl_tfd
);
164 priv
->hw_params
.max_stations
= IWLAGN_STATION_COUNT
;
165 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
167 priv
->hw_params
.max_data_size
= IWLAGN_RTC_DATA_SIZE
;
168 priv
->hw_params
.max_inst_size
= IWLAGN_RTC_INST_SIZE
;
170 priv
->hw_params
.ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
171 BIT(IEEE80211_BAND_5GHZ
);
172 priv
->hw_params
.rx_wrt_ptr_reg
= FH_RSCSR_CHNL0_WPTR
;
174 priv
->hw_params
.tx_chains_num
= num_of_ant(priv
->cfg
->valid_tx_ant
);
175 priv
->hw_params
.rx_chains_num
= num_of_ant(priv
->cfg
->valid_rx_ant
);
176 priv
->hw_params
.valid_tx_ant
= priv
->cfg
->valid_tx_ant
;
177 priv
->hw_params
.valid_rx_ant
= priv
->cfg
->valid_rx_ant
;
179 iwl5000_set_ct_threshold(priv
);
181 /* Set initial sensitivity parameters */
182 /* Set initial calibration set */
183 priv
->hw_params
.sens
= &iwl5000_sensitivity
;
184 priv
->hw_params
.calib_init_cfg
=
185 BIT(IWL_CALIB_XTAL
) |
187 BIT(IWL_CALIB_TX_IQ
) |
188 BIT(IWL_CALIB_TX_IQ_PERD
) |
189 BIT(IWL_CALIB_BASE_BAND
);
191 priv
->hw_params
.beacon_time_tsf_bits
= IWLAGN_EXT_BEACON_TIME_POS
;
196 static int iwl5150_hw_set_hw_params(struct iwl_priv
*priv
)
198 if (iwlagn_mod_params
.num_of_queues
>= IWL_MIN_NUM_QUEUES
&&
199 iwlagn_mod_params
.num_of_queues
<= IWLAGN_NUM_QUEUES
)
200 priv
->cfg
->base_params
->num_of_queues
=
201 iwlagn_mod_params
.num_of_queues
;
203 priv
->hw_params
.max_txq_num
= priv
->cfg
->base_params
->num_of_queues
;
204 priv
->hw_params
.dma_chnl_num
= FH50_TCSR_CHNL_NUM
;
205 priv
->hw_params
.scd_bc_tbls_size
=
206 priv
->cfg
->base_params
->num_of_queues
*
207 sizeof(struct iwlagn_scd_bc_tbl
);
208 priv
->hw_params
.tfd_size
= sizeof(struct iwl_tfd
);
209 priv
->hw_params
.max_stations
= IWLAGN_STATION_COUNT
;
210 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
212 priv
->hw_params
.max_data_size
= IWLAGN_RTC_DATA_SIZE
;
213 priv
->hw_params
.max_inst_size
= IWLAGN_RTC_INST_SIZE
;
215 priv
->hw_params
.ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
216 BIT(IEEE80211_BAND_5GHZ
);
217 priv
->hw_params
.rx_wrt_ptr_reg
= FH_RSCSR_CHNL0_WPTR
;
219 priv
->hw_params
.tx_chains_num
= num_of_ant(priv
->cfg
->valid_tx_ant
);
220 priv
->hw_params
.rx_chains_num
= num_of_ant(priv
->cfg
->valid_rx_ant
);
221 priv
->hw_params
.valid_tx_ant
= priv
->cfg
->valid_tx_ant
;
222 priv
->hw_params
.valid_rx_ant
= priv
->cfg
->valid_rx_ant
;
224 iwl5150_set_ct_threshold(priv
);
226 /* Set initial sensitivity parameters */
227 /* Set initial calibration set */
228 priv
->hw_params
.sens
= &iwl5150_sensitivity
;
229 priv
->hw_params
.calib_init_cfg
=
231 BIT(IWL_CALIB_TX_IQ
) |
232 BIT(IWL_CALIB_BASE_BAND
);
233 if (priv
->cfg
->need_dc_calib
)
234 priv
->hw_params
.calib_init_cfg
|= BIT(IWL_CALIB_DC
);
236 priv
->hw_params
.beacon_time_tsf_bits
= IWLAGN_EXT_BEACON_TIME_POS
;
241 static void iwl5150_temperature(struct iwl_priv
*priv
)
244 s32 offset
= iwl_temp_calib_to_offset(priv
);
246 vt
= le32_to_cpu(priv
->statistics
.common
.temperature
);
247 vt
= vt
/ IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
+ offset
;
248 /* now vt hold the temperature in Kelvin */
249 priv
->temperature
= KELVIN_TO_CELSIUS(vt
);
250 iwl_tt_handler(priv
);
253 static int iwl5000_hw_channel_switch(struct iwl_priv
*priv
,
254 struct ieee80211_channel_switch
*ch_switch
)
258 * See iwl_mac_channel_switch.
260 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
261 struct iwl5000_channel_switch_cmd cmd
;
262 const struct iwl_channel_info
*ch_info
;
263 u32 switch_time_in_usec
, ucode_switch_time
;
267 u16 beacon_interval
= le16_to_cpu(ctx
->timing
.beacon_interval
);
268 struct ieee80211_vif
*vif
= ctx
->vif
;
269 struct iwl_host_cmd hcmd
= {
270 .id
= REPLY_CHANNEL_SWITCH
,
271 .len
= { sizeof(cmd
), },
276 cmd
.band
= priv
->band
== IEEE80211_BAND_2GHZ
;
277 ch
= ch_switch
->channel
->hw_value
;
278 IWL_DEBUG_11H(priv
, "channel switch from %d to %d\n",
279 ctx
->active
.channel
, ch
);
280 cmd
.channel
= cpu_to_le16(ch
);
281 cmd
.rxon_flags
= ctx
->staging
.flags
;
282 cmd
.rxon_filter_flags
= ctx
->staging
.filter_flags
;
283 switch_count
= ch_switch
->count
;
284 tsf_low
= ch_switch
->timestamp
& 0x0ffffffff;
286 * calculate the ucode channel switch time
287 * adding TSF as one of the factor for when to switch
289 if ((priv
->ucode_beacon_time
> tsf_low
) && beacon_interval
) {
290 if (switch_count
> ((priv
->ucode_beacon_time
- tsf_low
) /
292 switch_count
-= (priv
->ucode_beacon_time
-
293 tsf_low
) / beacon_interval
;
297 if (switch_count
<= 1)
298 cmd
.switch_time
= cpu_to_le32(priv
->ucode_beacon_time
);
300 switch_time_in_usec
=
301 vif
->bss_conf
.beacon_int
* switch_count
* TIME_UNIT
;
302 ucode_switch_time
= iwl_usecs_to_beacons(priv
,
305 cmd
.switch_time
= iwl_add_beacon_time(priv
,
306 priv
->ucode_beacon_time
,
310 IWL_DEBUG_11H(priv
, "uCode time for the switch is 0x%x\n",
312 ch_info
= iwl_get_channel_info(priv
, priv
->band
, ch
);
314 cmd
.expect_beacon
= is_channel_radar(ch_info
);
316 IWL_ERR(priv
, "invalid channel switch from %u to %u\n",
317 ctx
->active
.channel
, ch
);
321 return iwl_send_cmd_sync(priv
, &hcmd
);
324 static struct iwl_lib_ops iwl5000_lib
= {
325 .set_hw_params
= iwl5000_hw_set_hw_params
,
326 .rx_handler_setup
= iwlagn_rx_handler_setup
,
327 .setup_deferred_work
= iwlagn_setup_deferred_work
,
328 .is_valid_rtc_data_addr
= iwlagn_hw_valid_rtc_data_addr
,
329 .update_chain_flags
= iwl_update_chain_flags
,
330 .set_channel_switch
= iwl5000_hw_channel_switch
,
332 .init
= iwl_apm_init
,
333 .config
= iwl5000_nic_config
,
336 .regulatory_bands
= {
337 EEPROM_REG_BAND_1_CHANNELS
,
338 EEPROM_REG_BAND_2_CHANNELS
,
339 EEPROM_REG_BAND_3_CHANNELS
,
340 EEPROM_REG_BAND_4_CHANNELS
,
341 EEPROM_REG_BAND_5_CHANNELS
,
342 EEPROM_REG_BAND_24_HT40_CHANNELS
,
343 EEPROM_REG_BAND_52_HT40_CHANNELS
345 .query_addr
= iwlagn_eeprom_query_addr
,
348 .temperature
= iwlagn_temperature
,
352 static struct iwl_lib_ops iwl5150_lib
= {
353 .set_hw_params
= iwl5150_hw_set_hw_params
,
354 .rx_handler_setup
= iwlagn_rx_handler_setup
,
355 .setup_deferred_work
= iwlagn_setup_deferred_work
,
356 .is_valid_rtc_data_addr
= iwlagn_hw_valid_rtc_data_addr
,
357 .update_chain_flags
= iwl_update_chain_flags
,
358 .set_channel_switch
= iwl5000_hw_channel_switch
,
360 .init
= iwl_apm_init
,
361 .config
= iwl5000_nic_config
,
364 .regulatory_bands
= {
365 EEPROM_REG_BAND_1_CHANNELS
,
366 EEPROM_REG_BAND_2_CHANNELS
,
367 EEPROM_REG_BAND_3_CHANNELS
,
368 EEPROM_REG_BAND_4_CHANNELS
,
369 EEPROM_REG_BAND_5_CHANNELS
,
370 EEPROM_REG_BAND_24_HT40_CHANNELS
,
371 EEPROM_REG_BAND_52_HT40_CHANNELS
373 .query_addr
= iwlagn_eeprom_query_addr
,
376 .temperature
= iwl5150_temperature
,
380 static const struct iwl_ops iwl5000_ops
= {
382 .utils
= &iwlagn_hcmd_utils
,
385 static const struct iwl_ops iwl5150_ops
= {
387 .utils
= &iwlagn_hcmd_utils
,
390 static struct iwl_base_params iwl5000_base_params
= {
391 .eeprom_size
= IWLAGN_EEPROM_IMG_SIZE
,
392 .num_of_queues
= IWLAGN_NUM_QUEUES
,
393 .num_of_ampdu_queues
= IWLAGN_NUM_AMPDU_QUEUES
,
394 .pll_cfg_val
= CSR50_ANA_PLL_CFG_VAL
,
395 .led_compensation
= 51,
396 .chain_noise_num_beacons
= IWL_CAL_NUM_BEACONS
,
397 .plcp_delta_threshold
= IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF
,
398 .chain_noise_scale
= 1000,
399 .wd_timeout
= IWL_LONG_WD_TIMEOUT
,
400 .max_event_log_size
= 512,
402 static struct iwl_ht_params iwl5000_ht_params
= {
403 .ht_greenfield_support
= true,
406 #define IWL_DEVICE_5000 \
407 .fw_name_pre = IWL5000_FW_PRE, \
408 .ucode_api_max = IWL5000_UCODE_API_MAX, \
409 .ucode_api_min = IWL5000_UCODE_API_MIN, \
410 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \
411 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \
412 .ops = &iwl5000_ops, \
413 .base_params = &iwl5000_base_params, \
414 .led_mode = IWL_LED_BLINK
416 struct iwl_cfg iwl5300_agn_cfg
= {
417 .name
= "Intel(R) Ultimate N WiFi Link 5300 AGN",
419 /* at least EEPROM 0x11A has wrong info */
420 .valid_tx_ant
= ANT_ABC
, /* .cfg overwrite */
421 .valid_rx_ant
= ANT_ABC
, /* .cfg overwrite */
422 .ht_params
= &iwl5000_ht_params
,
425 struct iwl_cfg iwl5100_bgn_cfg
= {
426 .name
= "Intel(R) WiFi Link 5100 BGN",
428 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
429 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
430 .ht_params
= &iwl5000_ht_params
,
433 struct iwl_cfg iwl5100_abg_cfg
= {
434 .name
= "Intel(R) WiFi Link 5100 ABG",
436 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
437 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
440 struct iwl_cfg iwl5100_agn_cfg
= {
441 .name
= "Intel(R) WiFi Link 5100 AGN",
443 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
444 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
445 .ht_params
= &iwl5000_ht_params
,
448 struct iwl_cfg iwl5350_agn_cfg
= {
449 .name
= "Intel(R) WiMAX/WiFi Link 5350 AGN",
450 .fw_name_pre
= IWL5000_FW_PRE
,
451 .ucode_api_max
= IWL5000_UCODE_API_MAX
,
452 .ucode_api_min
= IWL5000_UCODE_API_MIN
,
453 .eeprom_ver
= EEPROM_5050_EEPROM_VERSION
,
454 .eeprom_calib_ver
= EEPROM_5050_TX_POWER_VERSION
,
456 .base_params
= &iwl5000_base_params
,
457 .ht_params
= &iwl5000_ht_params
,
458 .led_mode
= IWL_LED_BLINK
,
459 .internal_wimax_coex
= true,
462 #define IWL_DEVICE_5150 \
463 .fw_name_pre = IWL5150_FW_PRE, \
464 .ucode_api_max = IWL5150_UCODE_API_MAX, \
465 .ucode_api_min = IWL5150_UCODE_API_MIN, \
466 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \
467 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \
468 .ops = &iwl5150_ops, \
469 .base_params = &iwl5000_base_params, \
470 .need_dc_calib = true, \
471 .led_mode = IWL_LED_BLINK, \
472 .internal_wimax_coex = true
474 struct iwl_cfg iwl5150_agn_cfg
= {
475 .name
= "Intel(R) WiMAX/WiFi Link 5150 AGN",
477 .ht_params
= &iwl5000_ht_params
,
481 struct iwl_cfg iwl5150_abg_cfg
= {
482 .name
= "Intel(R) WiMAX/WiFi Link 5150 ABG",
486 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX
));
487 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX
));