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 <net/mac80211.h>
35 #include <linux/etherdevice.h>
36 #include <asm/unaligned.h>
37 #include <linux/stringify.h>
39 #include "iwl-eeprom.h"
43 #include "iwl-helpers.h"
45 #include "iwl-agn-hw.h"
46 #include "iwl-5000-hw.h"
47 #include "iwl-trans.h"
48 #include "iwl-shared.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 __stringify(api) ".ucode"
62 #define IWL5150_FW_PRE "iwlwifi-5150-"
63 #define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE __stringify(api) ".ucode"
65 /* NIC configuration for 5000 series */
66 static void iwl5000_nic_config(struct iwl_priv
*priv
)
72 spin_lock_irqsave(&priv
->shrd
->lock
, flags
);
74 /* W/A : NIC is stuck in a reset state after Early PCIe power off
75 * (PCIe power is lost before PERST# is asserted),
76 * causing ME FW to lose ownership and not being able to obtain it back.
78 iwl_set_bits_mask_prph(bus(priv
), APMG_PS_CTRL_REG
,
79 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
,
80 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
);
83 spin_unlock_irqrestore(&priv
->shrd
->lock
, flags
);
86 static struct iwl_sensitivity_ranges iwl5000_sensitivity
= {
88 .max_nrg_cck
= 0, /* not used, set to 0 */
89 .auto_corr_min_ofdm
= 90,
90 .auto_corr_min_ofdm_mrc
= 170,
91 .auto_corr_min_ofdm_x1
= 105,
92 .auto_corr_min_ofdm_mrc_x1
= 220,
94 .auto_corr_max_ofdm
= 120,
95 .auto_corr_max_ofdm_mrc
= 210,
96 .auto_corr_max_ofdm_x1
= 120,
97 .auto_corr_max_ofdm_mrc_x1
= 240,
99 .auto_corr_min_cck
= 125,
100 .auto_corr_max_cck
= 200,
101 .auto_corr_min_cck_mrc
= 200,
102 .auto_corr_max_cck_mrc
= 400,
106 .barker_corr_th_min
= 190,
107 .barker_corr_th_min_mrc
= 390,
111 static struct iwl_sensitivity_ranges iwl5150_sensitivity
= {
113 .max_nrg_cck
= 0, /* not used, set to 0 */
114 .auto_corr_min_ofdm
= 90,
115 .auto_corr_min_ofdm_mrc
= 170,
116 .auto_corr_min_ofdm_x1
= 105,
117 .auto_corr_min_ofdm_mrc_x1
= 220,
119 .auto_corr_max_ofdm
= 120,
120 .auto_corr_max_ofdm_mrc
= 210,
121 /* max = min for performance bug in 5150 DSP */
122 .auto_corr_max_ofdm_x1
= 105,
123 .auto_corr_max_ofdm_mrc_x1
= 220,
125 .auto_corr_min_cck
= 125,
126 .auto_corr_max_cck
= 200,
127 .auto_corr_min_cck_mrc
= 170,
128 .auto_corr_max_cck_mrc
= 400,
132 .barker_corr_th_min
= 190,
133 .barker_corr_th_min_mrc
= 390,
137 static void iwl5150_set_ct_threshold(struct iwl_priv
*priv
)
139 const s32 volt2temp_coef
= IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
;
140 s32 threshold
= (s32
)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY
) -
141 iwl_temp_calib_to_offset(priv
);
143 hw_params(priv
).ct_kill_threshold
= threshold
* volt2temp_coef
;
146 static void iwl5000_set_ct_threshold(struct iwl_priv
*priv
)
149 hw_params(priv
).ct_kill_threshold
= CT_KILL_THRESHOLD_LEGACY
;
152 static int iwl5000_hw_set_hw_params(struct iwl_priv
*priv
)
154 if (iwlagn_mod_params
.num_of_queues
>= IWL_MIN_NUM_QUEUES
&&
155 iwlagn_mod_params
.num_of_queues
<= IWLAGN_NUM_QUEUES
)
156 priv
->cfg
->base_params
->num_of_queues
=
157 iwlagn_mod_params
.num_of_queues
;
159 hw_params(priv
).max_txq_num
= priv
->cfg
->base_params
->num_of_queues
;
160 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
162 hw_params(priv
).max_data_size
= IWLAGN_RTC_DATA_SIZE
;
163 hw_params(priv
).max_inst_size
= IWLAGN_RTC_INST_SIZE
;
165 hw_params(priv
).ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
166 BIT(IEEE80211_BAND_5GHZ
);
168 hw_params(priv
).tx_chains_num
= num_of_ant(priv
->cfg
->valid_tx_ant
);
169 hw_params(priv
).rx_chains_num
= num_of_ant(priv
->cfg
->valid_rx_ant
);
170 hw_params(priv
).valid_tx_ant
= priv
->cfg
->valid_tx_ant
;
171 hw_params(priv
).valid_rx_ant
= priv
->cfg
->valid_rx_ant
;
173 iwl5000_set_ct_threshold(priv
);
175 /* Set initial sensitivity parameters */
176 /* Set initial calibration set */
177 hw_params(priv
).sens
= &iwl5000_sensitivity
;
178 hw_params(priv
).calib_init_cfg
=
179 BIT(IWL_CALIB_XTAL
) |
181 BIT(IWL_CALIB_TX_IQ
) |
182 BIT(IWL_CALIB_TX_IQ_PERD
) |
183 BIT(IWL_CALIB_BASE_BAND
);
188 static int iwl5150_hw_set_hw_params(struct iwl_priv
*priv
)
190 if (iwlagn_mod_params
.num_of_queues
>= IWL_MIN_NUM_QUEUES
&&
191 iwlagn_mod_params
.num_of_queues
<= IWLAGN_NUM_QUEUES
)
192 priv
->cfg
->base_params
->num_of_queues
=
193 iwlagn_mod_params
.num_of_queues
;
195 hw_params(priv
).max_txq_num
= priv
->cfg
->base_params
->num_of_queues
;
196 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
198 hw_params(priv
).max_data_size
= IWLAGN_RTC_DATA_SIZE
;
199 hw_params(priv
).max_inst_size
= IWLAGN_RTC_INST_SIZE
;
201 hw_params(priv
).ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
202 BIT(IEEE80211_BAND_5GHZ
);
204 hw_params(priv
).tx_chains_num
= num_of_ant(priv
->cfg
->valid_tx_ant
);
205 hw_params(priv
).rx_chains_num
= num_of_ant(priv
->cfg
->valid_rx_ant
);
206 hw_params(priv
).valid_tx_ant
= priv
->cfg
->valid_tx_ant
;
207 hw_params(priv
).valid_rx_ant
= priv
->cfg
->valid_rx_ant
;
209 iwl5150_set_ct_threshold(priv
);
211 /* Set initial sensitivity parameters */
212 /* Set initial calibration set */
213 hw_params(priv
).sens
= &iwl5150_sensitivity
;
214 hw_params(priv
).calib_init_cfg
=
216 BIT(IWL_CALIB_TX_IQ
) |
217 BIT(IWL_CALIB_BASE_BAND
);
218 if (priv
->cfg
->need_dc_calib
)
219 hw_params(priv
).calib_init_cfg
|= BIT(IWL_CALIB_DC
);
224 static void iwl5150_temperature(struct iwl_priv
*priv
)
227 s32 offset
= iwl_temp_calib_to_offset(priv
);
229 vt
= le32_to_cpu(priv
->statistics
.common
.temperature
);
230 vt
= vt
/ IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
+ offset
;
231 /* now vt hold the temperature in Kelvin */
232 priv
->temperature
= KELVIN_TO_CELSIUS(vt
);
233 iwl_tt_handler(priv
);
236 static int iwl5000_hw_channel_switch(struct iwl_priv
*priv
,
237 struct ieee80211_channel_switch
*ch_switch
)
241 * See iwlagn_mac_channel_switch.
243 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
244 struct iwl5000_channel_switch_cmd cmd
;
245 const struct iwl_channel_info
*ch_info
;
246 u32 switch_time_in_usec
, ucode_switch_time
;
250 u16 beacon_interval
= le16_to_cpu(ctx
->timing
.beacon_interval
);
251 struct ieee80211_vif
*vif
= ctx
->vif
;
252 struct iwl_host_cmd hcmd
= {
253 .id
= REPLY_CHANNEL_SWITCH
,
254 .len
= { sizeof(cmd
), },
259 cmd
.band
= priv
->band
== IEEE80211_BAND_2GHZ
;
260 ch
= ch_switch
->channel
->hw_value
;
261 IWL_DEBUG_11H(priv
, "channel switch from %d to %d\n",
262 ctx
->active
.channel
, ch
);
263 cmd
.channel
= cpu_to_le16(ch
);
264 cmd
.rxon_flags
= ctx
->staging
.flags
;
265 cmd
.rxon_filter_flags
= ctx
->staging
.filter_flags
;
266 switch_count
= ch_switch
->count
;
267 tsf_low
= ch_switch
->timestamp
& 0x0ffffffff;
269 * calculate the ucode channel switch time
270 * adding TSF as one of the factor for when to switch
272 if ((priv
->ucode_beacon_time
> tsf_low
) && beacon_interval
) {
273 if (switch_count
> ((priv
->ucode_beacon_time
- tsf_low
) /
275 switch_count
-= (priv
->ucode_beacon_time
-
276 tsf_low
) / beacon_interval
;
280 if (switch_count
<= 1)
281 cmd
.switch_time
= cpu_to_le32(priv
->ucode_beacon_time
);
283 switch_time_in_usec
=
284 vif
->bss_conf
.beacon_int
* switch_count
* TIME_UNIT
;
285 ucode_switch_time
= iwl_usecs_to_beacons(priv
,
288 cmd
.switch_time
= iwl_add_beacon_time(priv
,
289 priv
->ucode_beacon_time
,
293 IWL_DEBUG_11H(priv
, "uCode time for the switch is 0x%x\n",
295 ch_info
= iwl_get_channel_info(priv
, priv
->band
, ch
);
297 cmd
.expect_beacon
= is_channel_radar(ch_info
);
299 IWL_ERR(priv
, "invalid channel switch from %u to %u\n",
300 ctx
->active
.channel
, ch
);
304 return iwl_trans_send_cmd(trans(priv
), &hcmd
);
307 static struct iwl_lib_ops iwl5000_lib
= {
308 .set_hw_params
= iwl5000_hw_set_hw_params
,
309 .set_channel_switch
= iwl5000_hw_channel_switch
,
310 .nic_config
= iwl5000_nic_config
,
312 .regulatory_bands
= {
313 EEPROM_REG_BAND_1_CHANNELS
,
314 EEPROM_REG_BAND_2_CHANNELS
,
315 EEPROM_REG_BAND_3_CHANNELS
,
316 EEPROM_REG_BAND_4_CHANNELS
,
317 EEPROM_REG_BAND_5_CHANNELS
,
318 EEPROM_REG_BAND_24_HT40_CHANNELS
,
319 EEPROM_REG_BAND_52_HT40_CHANNELS
322 .temperature
= iwlagn_temperature
,
325 static struct iwl_lib_ops iwl5150_lib
= {
326 .set_hw_params
= iwl5150_hw_set_hw_params
,
327 .set_channel_switch
= iwl5000_hw_channel_switch
,
328 .nic_config
= iwl5000_nic_config
,
330 .regulatory_bands
= {
331 EEPROM_REG_BAND_1_CHANNELS
,
332 EEPROM_REG_BAND_2_CHANNELS
,
333 EEPROM_REG_BAND_3_CHANNELS
,
334 EEPROM_REG_BAND_4_CHANNELS
,
335 EEPROM_REG_BAND_5_CHANNELS
,
336 EEPROM_REG_BAND_24_HT40_CHANNELS
,
337 EEPROM_REG_BAND_52_HT40_CHANNELS
340 .temperature
= iwl5150_temperature
,
343 static struct iwl_base_params iwl5000_base_params
= {
344 .eeprom_size
= IWLAGN_EEPROM_IMG_SIZE
,
345 .num_of_queues
= IWLAGN_NUM_QUEUES
,
346 .num_of_ampdu_queues
= IWLAGN_NUM_AMPDU_QUEUES
,
347 .pll_cfg_val
= CSR50_ANA_PLL_CFG_VAL
,
348 .led_compensation
= 51,
349 .plcp_delta_threshold
= IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF
,
350 .chain_noise_scale
= 1000,
351 .wd_timeout
= IWL_LONG_WD_TIMEOUT
,
352 .max_event_log_size
= 512,
353 .no_idle_support
= true,
355 static struct iwl_ht_params iwl5000_ht_params
= {
356 .ht_greenfield_support
= true,
359 #define IWL_DEVICE_5000 \
360 .fw_name_pre = IWL5000_FW_PRE, \
361 .ucode_api_max = IWL5000_UCODE_API_MAX, \
362 .ucode_api_min = IWL5000_UCODE_API_MIN, \
363 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \
364 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \
365 .lib = &iwl5000_lib, \
366 .base_params = &iwl5000_base_params, \
367 .led_mode = IWL_LED_BLINK
369 struct iwl_cfg iwl5300_agn_cfg
= {
370 .name
= "Intel(R) Ultimate N WiFi Link 5300 AGN",
372 /* at least EEPROM 0x11A has wrong info */
373 .valid_tx_ant
= ANT_ABC
, /* .cfg overwrite */
374 .valid_rx_ant
= ANT_ABC
, /* .cfg overwrite */
375 .ht_params
= &iwl5000_ht_params
,
378 struct iwl_cfg iwl5100_bgn_cfg
= {
379 .name
= "Intel(R) WiFi Link 5100 BGN",
381 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
382 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
383 .ht_params
= &iwl5000_ht_params
,
386 struct iwl_cfg iwl5100_abg_cfg
= {
387 .name
= "Intel(R) WiFi Link 5100 ABG",
389 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
390 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
393 struct iwl_cfg iwl5100_agn_cfg
= {
394 .name
= "Intel(R) WiFi Link 5100 AGN",
396 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
397 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
398 .ht_params
= &iwl5000_ht_params
,
401 struct iwl_cfg iwl5350_agn_cfg
= {
402 .name
= "Intel(R) WiMAX/WiFi Link 5350 AGN",
403 .fw_name_pre
= IWL5000_FW_PRE
,
404 .ucode_api_max
= IWL5000_UCODE_API_MAX
,
405 .ucode_api_min
= IWL5000_UCODE_API_MIN
,
406 .eeprom_ver
= EEPROM_5050_EEPROM_VERSION
,
407 .eeprom_calib_ver
= EEPROM_5050_TX_POWER_VERSION
,
409 .base_params
= &iwl5000_base_params
,
410 .ht_params
= &iwl5000_ht_params
,
411 .led_mode
= IWL_LED_BLINK
,
412 .internal_wimax_coex
= true,
415 #define IWL_DEVICE_5150 \
416 .fw_name_pre = IWL5150_FW_PRE, \
417 .ucode_api_max = IWL5150_UCODE_API_MAX, \
418 .ucode_api_min = IWL5150_UCODE_API_MIN, \
419 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \
420 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \
421 .lib = &iwl5150_lib, \
422 .base_params = &iwl5000_base_params, \
423 .need_dc_calib = true, \
424 .led_mode = IWL_LED_BLINK, \
425 .internal_wimax_coex = true
427 struct iwl_cfg iwl5150_agn_cfg
= {
428 .name
= "Intel(R) WiMAX/WiFi Link 5150 AGN",
430 .ht_params
= &iwl5000_ht_params
,
434 struct iwl_cfg iwl5150_abg_cfg
= {
435 .name
= "Intel(R) WiMAX/WiFi Link 5150 ABG",
439 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX
));
440 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX
));