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/pci.h>
31 #include <linux/dma-mapping.h>
32 #include <linux/delay.h>
33 #include <linux/sched.h>
34 #include <linux/skbuff.h>
35 #include <linux/netdevice.h>
36 #include <linux/wireless.h>
37 #include <net/mac80211.h>
38 #include <linux/etherdevice.h>
39 #include <asm/unaligned.h>
41 #include "iwl-eeprom.h"
46 #include "iwl-helpers.h"
48 #include "iwl-agn-hw.h"
49 #include "iwl-5000-hw.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 #api ".ucode"
62 #define IWL5150_FW_PRE "iwlwifi-5150-"
63 #define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE #api ".ucode"
65 /* NIC configuration for 5000 series */
66 static void iwl5000_nic_config(struct iwl_priv
*priv
)
71 spin_lock_irqsave(&priv
->lock
, flags
);
73 radio_cfg
= iwl_eeprom_query16(priv
, EEPROM_RADIO_CONFIG
);
75 /* write radio config values to register */
76 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg
) < EEPROM_RF_CONFIG_TYPE_MAX
)
77 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
78 EEPROM_RF_CFG_TYPE_MSK(radio_cfg
) |
79 EEPROM_RF_CFG_STEP_MSK(radio_cfg
) |
80 EEPROM_RF_CFG_DASH_MSK(radio_cfg
));
82 /* set CSR_HW_CONFIG_REG for uCode use */
83 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
84 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI
|
85 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI
);
87 /* W/A : NIC is stuck in a reset state after Early PCIe power off
88 * (PCIe power is lost before PERST# is asserted),
89 * causing ME FW to lose ownership and not being able to obtain it back.
91 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
92 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
,
93 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
);
96 spin_unlock_irqrestore(&priv
->lock
, flags
);
99 static struct iwl_sensitivity_ranges iwl5000_sensitivity
= {
101 .max_nrg_cck
= 0, /* not used, set to 0 */
102 .auto_corr_min_ofdm
= 90,
103 .auto_corr_min_ofdm_mrc
= 170,
104 .auto_corr_min_ofdm_x1
= 120,
105 .auto_corr_min_ofdm_mrc_x1
= 240,
107 .auto_corr_max_ofdm
= 120,
108 .auto_corr_max_ofdm_mrc
= 210,
109 .auto_corr_max_ofdm_x1
= 120,
110 .auto_corr_max_ofdm_mrc_x1
= 240,
112 .auto_corr_min_cck
= 125,
113 .auto_corr_max_cck
= 200,
114 .auto_corr_min_cck_mrc
= 170,
115 .auto_corr_max_cck_mrc
= 400,
119 .barker_corr_th_min
= 190,
120 .barker_corr_th_min_mrc
= 390,
124 static struct iwl_sensitivity_ranges iwl5150_sensitivity
= {
126 .max_nrg_cck
= 0, /* not used, set to 0 */
127 .auto_corr_min_ofdm
= 90,
128 .auto_corr_min_ofdm_mrc
= 170,
129 .auto_corr_min_ofdm_x1
= 105,
130 .auto_corr_min_ofdm_mrc_x1
= 220,
132 .auto_corr_max_ofdm
= 120,
133 .auto_corr_max_ofdm_mrc
= 210,
134 /* max = min for performance bug in 5150 DSP */
135 .auto_corr_max_ofdm_x1
= 105,
136 .auto_corr_max_ofdm_mrc_x1
= 220,
138 .auto_corr_min_cck
= 125,
139 .auto_corr_max_cck
= 200,
140 .auto_corr_min_cck_mrc
= 170,
141 .auto_corr_max_cck_mrc
= 400,
145 .barker_corr_th_min
= 190,
146 .barker_corr_th_min_mrc
= 390,
150 static void iwl5150_set_ct_threshold(struct iwl_priv
*priv
)
152 const s32 volt2temp_coef
= IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
;
153 s32 threshold
= (s32
)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY
) -
154 iwl_temp_calib_to_offset(priv
);
156 priv
->hw_params
.ct_kill_threshold
= threshold
* volt2temp_coef
;
159 static void iwl5000_set_ct_threshold(struct iwl_priv
*priv
)
162 priv
->hw_params
.ct_kill_threshold
= CT_KILL_THRESHOLD_LEGACY
;
165 static int iwl5000_hw_set_hw_params(struct iwl_priv
*priv
)
167 if (iwlagn_mod_params
.num_of_queues
>= IWL_MIN_NUM_QUEUES
&&
168 iwlagn_mod_params
.num_of_queues
<= IWLAGN_NUM_QUEUES
)
169 priv
->cfg
->base_params
->num_of_queues
=
170 iwlagn_mod_params
.num_of_queues
;
172 priv
->hw_params
.max_txq_num
= priv
->cfg
->base_params
->num_of_queues
;
173 priv
->hw_params
.dma_chnl_num
= FH50_TCSR_CHNL_NUM
;
174 priv
->hw_params
.scd_bc_tbls_size
=
175 priv
->cfg
->base_params
->num_of_queues
*
176 sizeof(struct iwlagn_scd_bc_tbl
);
177 priv
->hw_params
.tfd_size
= sizeof(struct iwl_tfd
);
178 priv
->hw_params
.max_stations
= IWLAGN_STATION_COUNT
;
179 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
181 priv
->hw_params
.max_data_size
= IWLAGN_RTC_DATA_SIZE
;
182 priv
->hw_params
.max_inst_size
= IWLAGN_RTC_INST_SIZE
;
184 priv
->hw_params
.ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
185 BIT(IEEE80211_BAND_5GHZ
);
186 priv
->hw_params
.rx_wrt_ptr_reg
= FH_RSCSR_CHNL0_WPTR
;
188 priv
->hw_params
.tx_chains_num
= num_of_ant(priv
->cfg
->valid_tx_ant
);
189 priv
->hw_params
.rx_chains_num
= num_of_ant(priv
->cfg
->valid_rx_ant
);
190 priv
->hw_params
.valid_tx_ant
= priv
->cfg
->valid_tx_ant
;
191 priv
->hw_params
.valid_rx_ant
= priv
->cfg
->valid_rx_ant
;
193 iwl5000_set_ct_threshold(priv
);
195 /* Set initial sensitivity parameters */
196 /* Set initial calibration set */
197 priv
->hw_params
.sens
= &iwl5000_sensitivity
;
198 priv
->hw_params
.calib_init_cfg
=
199 BIT(IWL_CALIB_XTAL
) |
201 BIT(IWL_CALIB_TX_IQ
) |
202 BIT(IWL_CALIB_TX_IQ_PERD
) |
203 BIT(IWL_CALIB_BASE_BAND
);
205 priv
->hw_params
.beacon_time_tsf_bits
= IWLAGN_EXT_BEACON_TIME_POS
;
210 static int iwl5150_hw_set_hw_params(struct iwl_priv
*priv
)
212 if (iwlagn_mod_params
.num_of_queues
>= IWL_MIN_NUM_QUEUES
&&
213 iwlagn_mod_params
.num_of_queues
<= IWLAGN_NUM_QUEUES
)
214 priv
->cfg
->base_params
->num_of_queues
=
215 iwlagn_mod_params
.num_of_queues
;
217 priv
->hw_params
.max_txq_num
= priv
->cfg
->base_params
->num_of_queues
;
218 priv
->hw_params
.dma_chnl_num
= FH50_TCSR_CHNL_NUM
;
219 priv
->hw_params
.scd_bc_tbls_size
=
220 priv
->cfg
->base_params
->num_of_queues
*
221 sizeof(struct iwlagn_scd_bc_tbl
);
222 priv
->hw_params
.tfd_size
= sizeof(struct iwl_tfd
);
223 priv
->hw_params
.max_stations
= IWLAGN_STATION_COUNT
;
224 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
226 priv
->hw_params
.max_data_size
= IWLAGN_RTC_DATA_SIZE
;
227 priv
->hw_params
.max_inst_size
= IWLAGN_RTC_INST_SIZE
;
229 priv
->hw_params
.ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
230 BIT(IEEE80211_BAND_5GHZ
);
231 priv
->hw_params
.rx_wrt_ptr_reg
= FH_RSCSR_CHNL0_WPTR
;
233 priv
->hw_params
.tx_chains_num
= num_of_ant(priv
->cfg
->valid_tx_ant
);
234 priv
->hw_params
.rx_chains_num
= num_of_ant(priv
->cfg
->valid_rx_ant
);
235 priv
->hw_params
.valid_tx_ant
= priv
->cfg
->valid_tx_ant
;
236 priv
->hw_params
.valid_rx_ant
= priv
->cfg
->valid_rx_ant
;
238 iwl5150_set_ct_threshold(priv
);
240 /* Set initial sensitivity parameters */
241 /* Set initial calibration set */
242 priv
->hw_params
.sens
= &iwl5150_sensitivity
;
243 priv
->hw_params
.calib_init_cfg
=
245 BIT(IWL_CALIB_TX_IQ
) |
246 BIT(IWL_CALIB_BASE_BAND
);
247 if (priv
->cfg
->need_dc_calib
)
248 priv
->hw_params
.calib_init_cfg
|= BIT(IWL_CALIB_DC
);
250 priv
->hw_params
.beacon_time_tsf_bits
= IWLAGN_EXT_BEACON_TIME_POS
;
255 static void iwl5150_temperature(struct iwl_priv
*priv
)
258 s32 offset
= iwl_temp_calib_to_offset(priv
);
260 vt
= le32_to_cpu(priv
->statistics
.common
.temperature
);
261 vt
= vt
/ IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF
+ offset
;
262 /* now vt hold the temperature in Kelvin */
263 priv
->temperature
= KELVIN_TO_CELSIUS(vt
);
264 iwl_tt_handler(priv
);
267 static int iwl5000_hw_channel_switch(struct iwl_priv
*priv
,
268 struct ieee80211_channel_switch
*ch_switch
)
272 * See iwl_mac_channel_switch.
274 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
275 struct iwl5000_channel_switch_cmd cmd
;
276 const struct iwl_channel_info
*ch_info
;
277 u32 switch_time_in_usec
, ucode_switch_time
;
281 u16 beacon_interval
= le16_to_cpu(ctx
->timing
.beacon_interval
);
282 struct ieee80211_vif
*vif
= ctx
->vif
;
283 struct iwl_host_cmd hcmd
= {
284 .id
= REPLY_CHANNEL_SWITCH
,
285 .len
= { sizeof(cmd
), },
290 cmd
.band
= priv
->band
== IEEE80211_BAND_2GHZ
;
291 ch
= ch_switch
->channel
->hw_value
;
292 IWL_DEBUG_11H(priv
, "channel switch from %d to %d\n",
293 ctx
->active
.channel
, ch
);
294 cmd
.channel
= cpu_to_le16(ch
);
295 cmd
.rxon_flags
= ctx
->staging
.flags
;
296 cmd
.rxon_filter_flags
= ctx
->staging
.filter_flags
;
297 switch_count
= ch_switch
->count
;
298 tsf_low
= ch_switch
->timestamp
& 0x0ffffffff;
300 * calculate the ucode channel switch time
301 * adding TSF as one of the factor for when to switch
303 if ((priv
->ucode_beacon_time
> tsf_low
) && beacon_interval
) {
304 if (switch_count
> ((priv
->ucode_beacon_time
- tsf_low
) /
306 switch_count
-= (priv
->ucode_beacon_time
-
307 tsf_low
) / beacon_interval
;
311 if (switch_count
<= 1)
312 cmd
.switch_time
= cpu_to_le32(priv
->ucode_beacon_time
);
314 switch_time_in_usec
=
315 vif
->bss_conf
.beacon_int
* switch_count
* TIME_UNIT
;
316 ucode_switch_time
= iwl_usecs_to_beacons(priv
,
319 cmd
.switch_time
= iwl_add_beacon_time(priv
,
320 priv
->ucode_beacon_time
,
324 IWL_DEBUG_11H(priv
, "uCode time for the switch is 0x%x\n",
326 ch_info
= iwl_get_channel_info(priv
, priv
->band
, ch
);
328 cmd
.expect_beacon
= is_channel_radar(ch_info
);
330 IWL_ERR(priv
, "invalid channel switch from %u to %u\n",
331 ctx
->active
.channel
, ch
);
335 return iwl_send_cmd_sync(priv
, &hcmd
);
338 static struct iwl_lib_ops iwl5000_lib
= {
339 .set_hw_params
= iwl5000_hw_set_hw_params
,
340 .rx_handler_setup
= iwlagn_rx_handler_setup
,
341 .setup_deferred_work
= iwlagn_setup_deferred_work
,
342 .is_valid_rtc_data_addr
= iwlagn_hw_valid_rtc_data_addr
,
343 .send_tx_power
= iwlagn_send_tx_power
,
344 .update_chain_flags
= iwl_update_chain_flags
,
345 .set_channel_switch
= iwl5000_hw_channel_switch
,
347 .init
= iwl_apm_init
,
348 .config
= iwl5000_nic_config
,
351 .regulatory_bands
= {
352 EEPROM_REG_BAND_1_CHANNELS
,
353 EEPROM_REG_BAND_2_CHANNELS
,
354 EEPROM_REG_BAND_3_CHANNELS
,
355 EEPROM_REG_BAND_4_CHANNELS
,
356 EEPROM_REG_BAND_5_CHANNELS
,
357 EEPROM_REG_BAND_24_HT40_CHANNELS
,
358 EEPROM_REG_BAND_52_HT40_CHANNELS
360 .query_addr
= iwlagn_eeprom_query_addr
,
363 .temperature
= iwlagn_temperature
,
365 .txfifo_flush
= iwlagn_txfifo_flush
,
366 .dev_txfifo_flush
= iwlagn_dev_txfifo_flush
,
369 static struct iwl_lib_ops iwl5150_lib
= {
370 .set_hw_params
= iwl5150_hw_set_hw_params
,
371 .rx_handler_setup
= iwlagn_rx_handler_setup
,
372 .setup_deferred_work
= iwlagn_setup_deferred_work
,
373 .is_valid_rtc_data_addr
= iwlagn_hw_valid_rtc_data_addr
,
374 .send_tx_power
= iwlagn_send_tx_power
,
375 .update_chain_flags
= iwl_update_chain_flags
,
376 .set_channel_switch
= iwl5000_hw_channel_switch
,
378 .init
= iwl_apm_init
,
379 .config
= iwl5000_nic_config
,
382 .regulatory_bands
= {
383 EEPROM_REG_BAND_1_CHANNELS
,
384 EEPROM_REG_BAND_2_CHANNELS
,
385 EEPROM_REG_BAND_3_CHANNELS
,
386 EEPROM_REG_BAND_4_CHANNELS
,
387 EEPROM_REG_BAND_5_CHANNELS
,
388 EEPROM_REG_BAND_24_HT40_CHANNELS
,
389 EEPROM_REG_BAND_52_HT40_CHANNELS
391 .query_addr
= iwlagn_eeprom_query_addr
,
394 .temperature
= iwl5150_temperature
,
396 .txfifo_flush
= iwlagn_txfifo_flush
,
397 .dev_txfifo_flush
= iwlagn_dev_txfifo_flush
,
400 static const struct iwl_ops iwl5000_ops
= {
402 .hcmd
= &iwlagn_hcmd
,
403 .utils
= &iwlagn_hcmd_utils
,
406 static const struct iwl_ops iwl5150_ops
= {
408 .hcmd
= &iwlagn_hcmd
,
409 .utils
= &iwlagn_hcmd_utils
,
412 static struct iwl_base_params iwl5000_base_params
= {
413 .eeprom_size
= IWLAGN_EEPROM_IMG_SIZE
,
414 .num_of_queues
= IWLAGN_NUM_QUEUES
,
415 .num_of_ampdu_queues
= IWLAGN_NUM_AMPDU_QUEUES
,
416 .pll_cfg_val
= CSR50_ANA_PLL_CFG_VAL
,
417 .led_compensation
= 51,
418 .chain_noise_num_beacons
= IWL_CAL_NUM_BEACONS
,
419 .plcp_delta_threshold
= IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF
,
420 .chain_noise_scale
= 1000,
421 .wd_timeout
= IWL_LONG_WD_TIMEOUT
,
422 .max_event_log_size
= 512,
424 static struct iwl_ht_params iwl5000_ht_params
= {
425 .ht_greenfield_support
= true,
428 #define IWL_DEVICE_5000 \
429 .fw_name_pre = IWL5000_FW_PRE, \
430 .ucode_api_max = IWL5000_UCODE_API_MAX, \
431 .ucode_api_min = IWL5000_UCODE_API_MIN, \
432 .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \
433 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \
434 .ops = &iwl5000_ops, \
435 .base_params = &iwl5000_base_params, \
436 .led_mode = IWL_LED_BLINK
438 struct iwl_cfg iwl5300_agn_cfg
= {
439 .name
= "Intel(R) Ultimate N WiFi Link 5300 AGN",
441 /* at least EEPROM 0x11A has wrong info */
442 .valid_tx_ant
= ANT_ABC
, /* .cfg overwrite */
443 .valid_rx_ant
= ANT_ABC
, /* .cfg overwrite */
444 .ht_params
= &iwl5000_ht_params
,
447 struct iwl_cfg iwl5100_bgn_cfg
= {
448 .name
= "Intel(R) WiFi Link 5100 BGN",
450 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
451 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
452 .ht_params
= &iwl5000_ht_params
,
455 struct iwl_cfg iwl5100_abg_cfg
= {
456 .name
= "Intel(R) WiFi Link 5100 ABG",
458 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
459 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
462 struct iwl_cfg iwl5100_agn_cfg
= {
463 .name
= "Intel(R) WiFi Link 5100 AGN",
465 .valid_tx_ant
= ANT_B
, /* .cfg overwrite */
466 .valid_rx_ant
= ANT_AB
, /* .cfg overwrite */
467 .ht_params
= &iwl5000_ht_params
,
470 struct iwl_cfg iwl5350_agn_cfg
= {
471 .name
= "Intel(R) WiMAX/WiFi Link 5350 AGN",
472 .fw_name_pre
= IWL5000_FW_PRE
,
473 .ucode_api_max
= IWL5000_UCODE_API_MAX
,
474 .ucode_api_min
= IWL5000_UCODE_API_MIN
,
475 .eeprom_ver
= EEPROM_5050_EEPROM_VERSION
,
476 .eeprom_calib_ver
= EEPROM_5050_TX_POWER_VERSION
,
478 .base_params
= &iwl5000_base_params
,
479 .ht_params
= &iwl5000_ht_params
,
480 .led_mode
= IWL_LED_BLINK
,
481 .internal_wimax_coex
= true,
484 #define IWL_DEVICE_5150 \
485 .fw_name_pre = IWL5150_FW_PRE, \
486 .ucode_api_max = IWL5150_UCODE_API_MAX, \
487 .ucode_api_min = IWL5150_UCODE_API_MIN, \
488 .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \
489 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \
490 .ops = &iwl5150_ops, \
491 .base_params = &iwl5000_base_params, \
492 .need_dc_calib = true, \
493 .led_mode = IWL_LED_BLINK, \
494 .internal_wimax_coex = true
496 struct iwl_cfg iwl5150_agn_cfg
= {
497 .name
= "Intel(R) WiMAX/WiFi Link 5150 AGN",
499 .ht_params
= &iwl5000_ht_params
,
503 struct iwl_cfg iwl5150_abg_cfg
= {
504 .name
= "Intel(R) WiMAX/WiFi Link 5150 ABG",
508 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX
));
509 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX
));