iwlagn: mod param cleanup
[linux-2.6.git] / drivers / net / wireless / iwlwifi / iwl-2000.c
1 /******************************************************************************
2  *
3  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
4  *
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.
8  *
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
12  * more details.
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15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17  *
18  * The full GNU General Public License is included in this distribution in the
19  * file called LICENSE.
20  *
21  * Contact Information:
22  *  Intel Linux Wireless <ilw@linux.intel.com>
23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24  *
25  *****************************************************************************/
26
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>
39
40 #include "iwl-eeprom.h"
41 #include "iwl-dev.h"
42 #include "iwl-core.h"
43 #include "iwl-io.h"
44 #include "iwl-sta.h"
45 #include "iwl-agn.h"
46 #include "iwl-helpers.h"
47 #include "iwl-agn-hw.h"
48 #include "iwl-6000-hw.h"
49 #include "iwl-agn-debugfs.h"
50
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
55
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
60
61 #define IWL2030_FW_PRE "iwlwifi-2030-"
62 #define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE #api ".ucode"
63
64 #define IWL2000_FW_PRE "iwlwifi-2000-"
65 #define IWL2000_MODULE_FIRMWARE(api) IWL2000_FW_PRE #api ".ucode"
66
67 #define IWL105_FW_PRE "iwlwifi-105-"
68 #define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE #api ".ucode"
69
70 static void iwl2000_set_ct_threshold(struct iwl_priv *priv)
71 {
72         /* want Celsius */
73         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
74         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
75 }
76
77 /* NIC configuration for 2000 series */
78 static void iwl2000_nic_config(struct iwl_priv *priv)
79 {
80         u16 radio_cfg;
81
82         radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
83
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));
90
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);
95
96         if (priv->cfg->iq_invert)
97                 iwl_set_bit(priv, CSR_GP_DRIVER_REG,
98                             CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER);
99
100         if (priv->cfg->disable_otp_refresh)
101                 iwl_write_prph(priv, APMG_ANALOG_SVR_REG, 0x80000010);
102 }
103
104 static struct iwl_sensitivity_ranges iwl2000_sensitivity = {
105         .min_nrg_cck = 97,
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,
111
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,
116
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,
121         .nrg_th_cck = 97,
122         .nrg_th_ofdm = 100,
123
124         .barker_corr_th_min = 190,
125         .barker_corr_th_min_mrc = 390,
126         .nrg_th_cca = 62,
127 };
128
129 static int iwl2000_hw_set_hw_params(struct iwl_priv *priv)
130 {
131         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
132             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
133                 priv->cfg->base_params->num_of_queues =
134                         iwlagn_mod_params.num_of_queues;
135
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;
144
145         priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
146         priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
147
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;
151
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;
155         else
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;
160
161         iwl2000_set_ct_threshold(priv);
162
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)             |
168                 BIT(IWL_CALIB_LO)               |
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);
175
176         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
177
178         return 0;
179 }
180
181 static int iwl2030_hw_channel_switch(struct iwl_priv *priv,
182                                     struct ieee80211_channel_switch *ch_switch)
183 {
184         /*
185          * MULTI-FIXME
186          * See iwl_mac_channel_switch.
187          */
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;
192         u16 ch;
193         u32 tsf_low;
194         u8 switch_count;
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,
199                 .len = sizeof(cmd),
200                 .flags = CMD_SYNC,
201                 .data = &cmd,
202         };
203
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;
213         /*
214          * calculate the ucode channel switch time
215          * adding TSF as one of the factor for when to switch
216          */
217         if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) {
218                 if (switch_count > ((priv->ucode_beacon_time - tsf_low) /
219                     beacon_interval)) {
220                         switch_count -= (priv->ucode_beacon_time -
221                                 tsf_low) / beacon_interval;
222                 } else
223                         switch_count = 0;
224         }
225         if (switch_count <= 1)
226                 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
227         else {
228                 switch_time_in_usec =
229                         vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
230                 ucode_switch_time = iwl_usecs_to_beacons(priv,
231                                                 switch_time_in_usec,
232                                                 beacon_interval);
233                 cmd.switch_time = iwl_add_beacon_time(priv,
234                                                 priv->ucode_beacon_time,
235                                                 ucode_switch_time,
236                                                 beacon_interval);
237         }
238         IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
239                       cmd.switch_time);
240         ch_info = iwl_get_channel_info(priv, priv->band, ch);
241         if (ch_info)
242                 cmd.expect_beacon = is_channel_radar(ch_info);
243         else {
244                 IWL_ERR(priv, "invalid channel switch from %u to %u\n",
245                         ctx->active.channel, ch);
246                 return -EFAULT;
247         }
248         priv->switch_rxon.channel = cmd.channel;
249         priv->switch_rxon.switch_in_progress = true;
250
251         return iwl_send_cmd_sync(priv, &hcmd);
252 }
253
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,
269         .apm_ops = {
270                 .init = iwl_apm_init,
271                 .config = iwl2000_nic_config,
272         },
273         .eeprom_ops = {
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,
282                 },
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,
288         },
289         .temp_ops = {
290                 .temperature = iwlagn_temperature,
291         },
292         .debugfs_ops = {
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,
298         },
299         .txfifo_flush = iwlagn_txfifo_flush,
300         .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
301 };
302
303 static const struct iwl_ops iwl2000_ops = {
304         .lib = &iwl2000_lib,
305         .hcmd = &iwlagn_hcmd,
306         .utils = &iwlagn_hcmd_utils,
307 };
308
309 static const struct iwl_ops iwl2030_ops = {
310         .lib = &iwl2000_lib,
311         .hcmd = &iwlagn_bt_hcmd,
312         .utils = &iwlagn_hcmd_utils,
313 };
314
315 static const struct iwl_ops iwl105_ops = {
316         .lib = &iwl2000_lib,
317         .hcmd = &iwlagn_hcmd,
318         .utils = &iwlagn_hcmd_utils,
319 };
320
321 static const struct iwl_ops iwl135_ops = {
322         .lib = &iwl2000_lib,
323         .hcmd = &iwlagn_bt_hcmd,
324         .utils = &iwlagn_hcmd_utils,
325 };
326
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,
331         .pll_cfg_val = 0,
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,
343 };
344
345
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,
350         .pll_cfg_val = 0,
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,
362 };
363
364 static struct iwl_ht_params iwl2000_ht_params = {
365         .ht_greenfield_support = true,
366         .use_rts_for_aggregation = true, /* use rts/cts protection */
367 };
368
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,
377 };
378
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         .base_params = &iwl2000_base_params,                    \
387         .need_dc_calib = true,                                  \
388         .need_temp_offset_calib = true,                         \
389         .led_mode = IWL_LED_RF_STATE,                           \
390         .iq_invert = true,                                      \
391         .disable_otp_refresh = true                             \
392
393 struct iwl_cfg iwl2000_2bgn_cfg = {
394         .name = "2000 Series 2x2 BGN",
395         IWL_DEVICE_2000,
396         .ht_params = &iwl2000_ht_params,
397 };
398
399 struct iwl_cfg iwl2000_2bg_cfg = {
400         .name = "2000 Series 2x2 BG",
401         IWL_DEVICE_2000,
402 };
403
404 #define IWL_DEVICE_2030                                         \
405         .fw_name_pre = IWL2030_FW_PRE,                          \
406         .ucode_api_max = IWL2030_UCODE_API_MAX,                 \
407         .ucode_api_min = IWL2030_UCODE_API_MIN,                 \
408         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
409         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
410         .ops = &iwl2030_ops,                                    \
411         .base_params = &iwl2030_base_params,                    \
412         .bt_params = &iwl2030_bt_params,                        \
413         .need_dc_calib = true,                                  \
414         .need_temp_offset_calib = true,                         \
415         .led_mode = IWL_LED_RF_STATE,                           \
416         .adv_pm = true,                                         \
417         .iq_invert = true                                       \
418
419 struct iwl_cfg iwl2030_2bgn_cfg = {
420         .name = "2000 Series 2x2 BGN/BT",
421         IWL_DEVICE_2030,
422         .ht_params = &iwl2000_ht_params,
423 };
424
425 struct iwl_cfg iwl2030_2bg_cfg = {
426         .name = "2000 Series 2x2 BG/BT",
427         IWL_DEVICE_2030,
428 };
429
430 #define IWL_DEVICE_105                                          \
431         .fw_name_pre = IWL105_FW_PRE,                           \
432         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
433         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
434         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
435         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
436         .ops = &iwl105_ops,                                     \
437         .base_params = &iwl2000_base_params,                    \
438         .need_dc_calib = true,                                  \
439         .need_temp_offset_calib = true,                         \
440         .led_mode = IWL_LED_RF_STATE,                           \
441         .adv_pm = true,                                         \
442         .rx_with_siso_diversity = true                          \
443
444 struct iwl_cfg iwl105_bg_cfg = {
445         .name = "105 Series 1x1 BG",
446         IWL_DEVICE_105,
447 };
448
449 struct iwl_cfg iwl105_bgn_cfg = {
450         .name = "105 Series 1x1 BGN",
451         IWL_DEVICE_105,
452         .ht_params = &iwl2000_ht_params,
453 };
454
455 #define IWL_DEVICE_135                                          \
456         .fw_name_pre = IWL105_FW_PRE,                           \
457         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
458         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
459         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
460         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
461         .ops = &iwl135_ops,                                     \
462         .base_params = &iwl2030_base_params,                    \
463         .bt_params = &iwl2030_bt_params,                        \
464         .need_dc_calib = true,                                  \
465         .need_temp_offset_calib = true,                         \
466         .led_mode = IWL_LED_RF_STATE,                           \
467         .adv_pm = true,                                         \
468         .rx_with_siso_diversity = true                          \
469
470 struct iwl_cfg iwl135_bg_cfg = {
471         .name = "105 Series 1x1 BG/BT",
472         IWL_DEVICE_135,
473 };
474
475 struct iwl_cfg iwl135_bgn_cfg = {
476         .name = "105 Series 1x1 BGN/BT",
477         IWL_DEVICE_135,
478         .ht_params = &iwl2000_ht_params,
479 };
480
481 MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX));
482 MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX));
483 MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX));