1 /******************************************************************************
3 * Copyright(c) 2008 - 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/skbuff.h>
34 #include <linux/netdevice.h>
35 #include <linux/wireless.h>
36 #include <net/mac80211.h>
37 #include <linux/etherdevice.h>
38 #include <asm/unaligned.h>
40 #include "iwl-eeprom.h"
46 #include "iwl-helpers.h"
47 #include "iwl-agn-hw.h"
48 #include "iwl-6000-hw.h"
49 #include "iwl-agn-debugfs.h"
51 /* Highest firmware API version supported */
52 #define IWL2030_UCODE_API_MAX 5
53 #define IWL2000_UCODE_API_MAX 5
54 #define IWL105_UCODE_API_MAX 5
56 /* Lowest firmware API version supported */
57 #define IWL2030_UCODE_API_MIN 5
58 #define IWL2000_UCODE_API_MIN 5
59 #define IWL105_UCODE_API_MIN 5
61 #define IWL2030_FW_PRE "iwlwifi-2030-"
62 #define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE #api ".ucode"
64 #define IWL2000_FW_PRE "iwlwifi-2000-"
65 #define IWL2000_MODULE_FIRMWARE(api) IWL2000_FW_PRE #api ".ucode"
67 #define IWL105_FW_PRE "iwlwifi-105-"
68 #define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE #api ".ucode"
70 static void iwl2000_set_ct_threshold(struct iwl_priv
*priv
)
73 priv
->hw_params
.ct_kill_threshold
= CT_KILL_THRESHOLD
;
74 priv
->hw_params
.ct_kill_exit_threshold
= CT_KILL_EXIT_THRESHOLD
;
77 /* NIC configuration for 2000 series */
78 static void iwl2000_nic_config(struct iwl_priv
*priv
)
82 radio_cfg
= iwl_eeprom_query16(priv
, EEPROM_RADIO_CONFIG
);
84 /* write radio config values to register */
85 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg
) <= EEPROM_RF_CONFIG_TYPE_MAX
)
86 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
87 EEPROM_RF_CFG_TYPE_MSK(radio_cfg
) |
88 EEPROM_RF_CFG_STEP_MSK(radio_cfg
) |
89 EEPROM_RF_CFG_DASH_MSK(radio_cfg
));
91 /* set CSR_HW_CONFIG_REG for uCode use */
92 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
93 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI
|
94 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI
);
96 if (priv
->cfg
->iq_invert
)
97 iwl_set_bit(priv
, CSR_GP_DRIVER_REG
,
98 CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER
);
100 if (priv
->cfg
->disable_otp_refresh
)
101 iwl_write_prph(priv
, APMG_ANALOG_SVR_REG
, 0x80000010);
104 static struct iwl_sensitivity_ranges iwl2000_sensitivity
= {
106 .max_nrg_cck
= 0, /* not used, set to 0 */
107 .auto_corr_min_ofdm
= 80,
108 .auto_corr_min_ofdm_mrc
= 128,
109 .auto_corr_min_ofdm_x1
= 105,
110 .auto_corr_min_ofdm_mrc_x1
= 192,
112 .auto_corr_max_ofdm
= 145,
113 .auto_corr_max_ofdm_mrc
= 232,
114 .auto_corr_max_ofdm_x1
= 110,
115 .auto_corr_max_ofdm_mrc_x1
= 232,
117 .auto_corr_min_cck
= 125,
118 .auto_corr_max_cck
= 175,
119 .auto_corr_min_cck_mrc
= 160,
120 .auto_corr_max_cck_mrc
= 310,
124 .barker_corr_th_min
= 190,
125 .barker_corr_th_min_mrc
= 390,
129 static int iwl2000_hw_set_hw_params(struct iwl_priv
*priv
)
131 if (priv
->cfg
->mod_params
->num_of_queues
>= IWL_MIN_NUM_QUEUES
&&
132 priv
->cfg
->mod_params
->num_of_queues
<= IWLAGN_NUM_QUEUES
)
133 priv
->cfg
->base_params
->num_of_queues
=
134 priv
->cfg
->mod_params
->num_of_queues
;
136 priv
->hw_params
.max_txq_num
= priv
->cfg
->base_params
->num_of_queues
;
137 priv
->hw_params
.dma_chnl_num
= FH50_TCSR_CHNL_NUM
;
138 priv
->hw_params
.scd_bc_tbls_size
=
139 priv
->cfg
->base_params
->num_of_queues
*
140 sizeof(struct iwlagn_scd_bc_tbl
);
141 priv
->hw_params
.tfd_size
= sizeof(struct iwl_tfd
);
142 priv
->hw_params
.max_stations
= IWLAGN_STATION_COUNT
;
143 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
145 priv
->hw_params
.max_data_size
= IWL60_RTC_DATA_SIZE
;
146 priv
->hw_params
.max_inst_size
= IWL60_RTC_INST_SIZE
;
148 priv
->hw_params
.ht40_channel
= BIT(IEEE80211_BAND_2GHZ
) |
149 BIT(IEEE80211_BAND_5GHZ
);
150 priv
->hw_params
.rx_wrt_ptr_reg
= FH_RSCSR_CHNL0_WPTR
;
152 priv
->hw_params
.tx_chains_num
= num_of_ant(priv
->cfg
->valid_tx_ant
);
153 if (priv
->cfg
->rx_with_siso_diversity
)
154 priv
->hw_params
.rx_chains_num
= 1;
156 priv
->hw_params
.rx_chains_num
=
157 num_of_ant(priv
->cfg
->valid_rx_ant
);
158 priv
->hw_params
.valid_tx_ant
= priv
->cfg
->valid_tx_ant
;
159 priv
->hw_params
.valid_rx_ant
= priv
->cfg
->valid_rx_ant
;
161 iwl2000_set_ct_threshold(priv
);
163 /* Set initial sensitivity parameters */
164 /* Set initial calibration set */
165 priv
->hw_params
.sens
= &iwl2000_sensitivity
;
166 priv
->hw_params
.calib_init_cfg
=
167 BIT(IWL_CALIB_XTAL
) |
169 BIT(IWL_CALIB_TX_IQ
) |
170 BIT(IWL_CALIB_BASE_BAND
);
171 if (priv
->cfg
->need_dc_calib
)
172 priv
->hw_params
.calib_rt_cfg
|= BIT(IWL_CALIB_CFG_DC_IDX
);
173 if (priv
->cfg
->need_temp_offset_calib
)
174 priv
->hw_params
.calib_init_cfg
|= BIT(IWL_CALIB_TEMP_OFFSET
);
176 priv
->hw_params
.beacon_time_tsf_bits
= IWLAGN_EXT_BEACON_TIME_POS
;
181 static int iwl2030_hw_channel_switch(struct iwl_priv
*priv
,
182 struct ieee80211_channel_switch
*ch_switch
)
186 * See iwl_mac_channel_switch.
188 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
189 struct iwl6000_channel_switch_cmd cmd
;
190 const struct iwl_channel_info
*ch_info
;
191 u32 switch_time_in_usec
, ucode_switch_time
;
195 u16 beacon_interval
= le16_to_cpu(ctx
->timing
.beacon_interval
);
196 struct ieee80211_vif
*vif
= ctx
->vif
;
197 struct iwl_host_cmd hcmd
= {
198 .id
= REPLY_CHANNEL_SWITCH
,
204 cmd
.band
= priv
->band
== IEEE80211_BAND_2GHZ
;
205 ch
= ch_switch
->channel
->hw_value
;
206 IWL_DEBUG_11H(priv
, "channel switch from %u to %u\n",
207 ctx
->active
.channel
, ch
);
208 cmd
.channel
= cpu_to_le16(ch
);
209 cmd
.rxon_flags
= ctx
->staging
.flags
;
210 cmd
.rxon_filter_flags
= ctx
->staging
.filter_flags
;
211 switch_count
= ch_switch
->count
;
212 tsf_low
= ch_switch
->timestamp
& 0x0ffffffff;
214 * calculate the ucode channel switch time
215 * adding TSF as one of the factor for when to switch
217 if ((priv
->ucode_beacon_time
> tsf_low
) && beacon_interval
) {
218 if (switch_count
> ((priv
->ucode_beacon_time
- tsf_low
) /
220 switch_count
-= (priv
->ucode_beacon_time
-
221 tsf_low
) / beacon_interval
;
225 if (switch_count
<= 1)
226 cmd
.switch_time
= cpu_to_le32(priv
->ucode_beacon_time
);
228 switch_time_in_usec
=
229 vif
->bss_conf
.beacon_int
* switch_count
* TIME_UNIT
;
230 ucode_switch_time
= iwl_usecs_to_beacons(priv
,
233 cmd
.switch_time
= iwl_add_beacon_time(priv
,
234 priv
->ucode_beacon_time
,
238 IWL_DEBUG_11H(priv
, "uCode time for the switch is 0x%x\n",
240 ch_info
= iwl_get_channel_info(priv
, priv
->band
, ch
);
242 cmd
.expect_beacon
= is_channel_radar(ch_info
);
244 IWL_ERR(priv
, "invalid channel switch from %u to %u\n",
245 ctx
->active
.channel
, ch
);
248 priv
->switch_rxon
.channel
= cmd
.channel
;
249 priv
->switch_rxon
.switch_in_progress
= true;
251 return iwl_send_cmd_sync(priv
, &hcmd
);
254 static struct iwl_lib_ops iwl2000_lib
= {
255 .set_hw_params
= iwl2000_hw_set_hw_params
,
256 .txq_update_byte_cnt_tbl
= iwlagn_txq_update_byte_cnt_tbl
,
257 .txq_inval_byte_cnt_tbl
= iwlagn_txq_inval_byte_cnt_tbl
,
258 .txq_set_sched
= iwlagn_txq_set_sched
,
259 .txq_attach_buf_to_tfd
= iwl_hw_txq_attach_buf_to_tfd
,
260 .txq_free_tfd
= iwl_hw_txq_free_tfd
,
261 .txq_init
= iwl_hw_tx_queue_init
,
262 .rx_handler_setup
= iwlagn_rx_handler_setup
,
263 .setup_deferred_work
= iwlagn_bt_setup_deferred_work
,
264 .cancel_deferred_work
= iwlagn_bt_cancel_deferred_work
,
265 .is_valid_rtc_data_addr
= iwlagn_hw_valid_rtc_data_addr
,
266 .send_tx_power
= iwlagn_send_tx_power
,
267 .update_chain_flags
= iwl_update_chain_flags
,
268 .set_channel_switch
= iwl2030_hw_channel_switch
,
270 .init
= iwl_apm_init
,
271 .config
= iwl2000_nic_config
,
274 .regulatory_bands
= {
275 EEPROM_REG_BAND_1_CHANNELS
,
276 EEPROM_REG_BAND_2_CHANNELS
,
277 EEPROM_REG_BAND_3_CHANNELS
,
278 EEPROM_REG_BAND_4_CHANNELS
,
279 EEPROM_REG_BAND_5_CHANNELS
,
280 EEPROM_6000_REG_BAND_24_HT40_CHANNELS
,
281 EEPROM_REGULATORY_BAND_NO_HT40
,
283 .acquire_semaphore
= iwlcore_eeprom_acquire_semaphore
,
284 .release_semaphore
= iwlcore_eeprom_release_semaphore
,
285 .calib_version
= iwlagn_eeprom_calib_version
,
286 .query_addr
= iwlagn_eeprom_query_addr
,
287 .update_enhanced_txpower
= iwlcore_eeprom_enhanced_txpower
,
290 .temperature
= iwlagn_temperature
,
293 .rx_stats_read
= iwl_ucode_rx_stats_read
,
294 .tx_stats_read
= iwl_ucode_tx_stats_read
,
295 .general_stats_read
= iwl_ucode_general_stats_read
,
296 .bt_stats_read
= iwl_ucode_bt_stats_read
,
297 .reply_tx_error
= iwl_reply_tx_error_read
,
299 .txfifo_flush
= iwlagn_txfifo_flush
,
300 .dev_txfifo_flush
= iwlagn_dev_txfifo_flush
,
303 static const struct iwl_ops iwl2000_ops
= {
305 .hcmd
= &iwlagn_hcmd
,
306 .utils
= &iwlagn_hcmd_utils
,
309 static const struct iwl_ops iwl2030_ops
= {
311 .hcmd
= &iwlagn_bt_hcmd
,
312 .utils
= &iwlagn_hcmd_utils
,
315 static const struct iwl_ops iwl105_ops
= {
317 .hcmd
= &iwlagn_hcmd
,
318 .utils
= &iwlagn_hcmd_utils
,
321 static const struct iwl_ops iwl135_ops
= {
323 .hcmd
= &iwlagn_bt_hcmd
,
324 .utils
= &iwlagn_hcmd_utils
,
327 static struct iwl_base_params iwl2000_base_params
= {
328 .eeprom_size
= OTP_LOW_IMAGE_SIZE
,
329 .num_of_queues
= IWLAGN_NUM_QUEUES
,
330 .num_of_ampdu_queues
= IWLAGN_NUM_AMPDU_QUEUES
,
332 .max_ll_items
= OTP_MAX_LL_ITEMS_2x00
,
333 .shadow_ram_support
= true,
334 .led_compensation
= 51,
335 .chain_noise_num_beacons
= IWL_CAL_NUM_BEACONS
,
336 .adv_thermal_throttle
= true,
337 .support_ct_kill_exit
= true,
338 .plcp_delta_threshold
= IWL_MAX_PLCP_ERR_THRESHOLD_DEF
,
339 .chain_noise_scale
= 1000,
340 .wd_timeout
= IWL_DEF_WD_TIMEOUT
,
341 .max_event_log_size
= 512,
342 .shadow_reg_enable
= true,
346 static struct iwl_base_params iwl2030_base_params
= {
347 .eeprom_size
= OTP_LOW_IMAGE_SIZE
,
348 .num_of_queues
= IWLAGN_NUM_QUEUES
,
349 .num_of_ampdu_queues
= IWLAGN_NUM_AMPDU_QUEUES
,
351 .max_ll_items
= OTP_MAX_LL_ITEMS_2x00
,
352 .shadow_ram_support
= true,
353 .led_compensation
= 57,
354 .chain_noise_num_beacons
= IWL_CAL_NUM_BEACONS
,
355 .adv_thermal_throttle
= true,
356 .support_ct_kill_exit
= true,
357 .plcp_delta_threshold
= IWL_MAX_PLCP_ERR_THRESHOLD_DEF
,
358 .chain_noise_scale
= 1000,
359 .wd_timeout
= IWL_LONG_WD_TIMEOUT
,
360 .max_event_log_size
= 512,
361 .shadow_reg_enable
= true,
364 static struct iwl_ht_params iwl2000_ht_params
= {
365 .ht_greenfield_support
= true,
366 .use_rts_for_aggregation
= true, /* use rts/cts protection */
369 static struct iwl_bt_params iwl2030_bt_params
= {
370 /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
371 .advanced_bt_coexist
= true,
372 .agg_time_limit
= BT_AGG_THRESHOLD_DEF
,
373 .bt_init_traffic_load
= IWL_BT_COEX_TRAFFIC_LOAD_NONE
,
374 .bt_prio_boost
= IWLAGN_BT_PRIO_BOOST_DEFAULT
,
375 .bt_sco_disable
= true,
376 .bt_session_2
= true,
379 #define IWL_DEVICE_2000 \
380 .fw_name_pre = IWL2000_FW_PRE, \
381 .ucode_api_max = IWL2000_UCODE_API_MAX, \
382 .ucode_api_min = IWL2000_UCODE_API_MIN, \
383 .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
384 .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
385 .ops = &iwl2000_ops, \
386 .mod_params = &iwlagn_mod_params, \
387 .base_params = &iwl2000_base_params, \
388 .need_dc_calib = true, \
389 .need_temp_offset_calib = true, \
390 .led_mode = IWL_LED_RF_STATE, \
392 .disable_otp_refresh = true \
394 struct iwl_cfg iwl2000_2bgn_cfg = {
395 .name
= "2000 Series 2x2 BGN",
397 .ht_params
= &iwl2000_ht_params
,
400 struct iwl_cfg iwl2000_2bg_cfg
= {
401 .name
= "2000 Series 2x2 BG",
405 #define IWL_DEVICE_2030 \
406 .fw_name_pre = IWL2030_FW_PRE, \
407 .ucode_api_max = IWL2030_UCODE_API_MAX, \
408 .ucode_api_min = IWL2030_UCODE_API_MIN, \
409 .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
410 .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
411 .ops = &iwl2030_ops, \
412 .mod_params = &iwlagn_mod_params, \
413 .base_params = &iwl2030_base_params, \
414 .bt_params = &iwl2030_bt_params, \
415 .need_dc_calib = true, \
416 .need_temp_offset_calib = true, \
417 .led_mode = IWL_LED_RF_STATE, \
421 struct iwl_cfg iwl2030_2bgn_cfg = {
422 .name
= "2000 Series 2x2 BGN/BT",
424 .ht_params
= &iwl2000_ht_params
,
427 struct iwl_cfg iwl2030_2bg_cfg
= {
428 .name
= "2000 Series 2x2 BG/BT",
432 #define IWL_DEVICE_105 \
433 .fw_name_pre = IWL105_FW_PRE, \
434 .ucode_api_max = IWL105_UCODE_API_MAX, \
435 .ucode_api_min = IWL105_UCODE_API_MIN, \
436 .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
437 .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
438 .ops = &iwl105_ops, \
439 .mod_params = &iwlagn_mod_params, \
440 .base_params = &iwl2000_base_params, \
441 .need_dc_calib = true, \
442 .need_temp_offset_calib = true, \
443 .led_mode = IWL_LED_RF_STATE, \
445 .rx_with_siso_diversity = true \
447 struct iwl_cfg iwl105_bg_cfg = {
448 .name
= "105 Series 1x1 BG",
452 struct iwl_cfg iwl105_bgn_cfg
= {
453 .name
= "105 Series 1x1 BGN",
455 .ht_params
= &iwl2000_ht_params
,
458 #define IWL_DEVICE_135 \
459 .fw_name_pre = IWL105_FW_PRE, \
460 .ucode_api_max = IWL105_UCODE_API_MAX, \
461 .ucode_api_min = IWL105_UCODE_API_MIN, \
462 .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
463 .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
464 .ops = &iwl135_ops, \
465 .mod_params = &iwlagn_mod_params, \
466 .base_params = &iwl2030_base_params, \
467 .bt_params = &iwl2030_bt_params, \
468 .need_dc_calib = true, \
469 .need_temp_offset_calib = true, \
470 .led_mode = IWL_LED_RF_STATE, \
472 .rx_with_siso_diversity = true \
474 struct iwl_cfg iwl135_bg_cfg = {
475 .name
= "105 Series 1x1 BG/BT",
479 struct iwl_cfg iwl135_bgn_cfg
= {
480 .name
= "105 Series 1x1 BGN/BT",
482 .ht_params
= &iwl2000_ht_params
,
485 MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX
));
486 MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX
));
487 MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX
));