iwlagn: remove iwlagn_hcmd_utils structure and call directly
[linux-2.6.git] / drivers / net / wireless / iwlwifi / iwl-5000.c
1 /******************************************************************************
2  *
3  * Copyright(c) 2007 - 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.
13  *
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
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/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>
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-helpers.h"
46 #include "iwl-agn.h"
47 #include "iwl-agn-hw.h"
48 #include "iwl-5000-hw.h"
49 #include "iwl-trans.h"
50
51 /* Highest firmware API version supported */
52 #define IWL5000_UCODE_API_MAX 5
53 #define IWL5150_UCODE_API_MAX 2
54
55 /* Lowest firmware API version supported */
56 #define IWL5000_UCODE_API_MIN 1
57 #define IWL5150_UCODE_API_MIN 1
58
59 #define IWL5000_FW_PRE "iwlwifi-5000-"
60 #define IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE __stringify(api) ".ucode"
61
62 #define IWL5150_FW_PRE "iwlwifi-5150-"
63 #define IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE __stringify(api) ".ucode"
64
65 /* NIC configuration for 5000 series */
66 static void iwl5000_nic_config(struct iwl_priv *priv)
67 {
68         unsigned long flags;
69
70         iwl_rf_config(priv);
71
72         spin_lock_irqsave(&priv->lock, flags);
73
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.
77          */
78         iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
79                                 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
80                                 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
81
82
83         spin_unlock_irqrestore(&priv->lock, flags);
84 }
85
86 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
87         .min_nrg_cck = 95,
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 = 120,
92         .auto_corr_min_ofdm_mrc_x1 = 240,
93
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,
98
99         .auto_corr_min_cck = 125,
100         .auto_corr_max_cck = 200,
101         .auto_corr_min_cck_mrc = 170,
102         .auto_corr_max_cck_mrc = 400,
103         .nrg_th_cck = 95,
104         .nrg_th_ofdm = 95,
105
106         .barker_corr_th_min = 190,
107         .barker_corr_th_min_mrc = 390,
108         .nrg_th_cca = 62,
109 };
110
111 static struct iwl_sensitivity_ranges iwl5150_sensitivity = {
112         .min_nrg_cck = 95,
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,
118
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,
124
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,
129         .nrg_th_cck = 95,
130         .nrg_th_ofdm = 95,
131
132         .barker_corr_th_min = 190,
133         .barker_corr_th_min_mrc = 390,
134         .nrg_th_cca = 62,
135 };
136
137 static void iwl5150_set_ct_threshold(struct iwl_priv *priv)
138 {
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);
142
143         priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef;
144 }
145
146 static void iwl5000_set_ct_threshold(struct iwl_priv *priv)
147 {
148         /* want Celsius */
149         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
150 }
151
152 static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
153 {
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;
158
159         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
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;
166
167         priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
168         priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
169
170         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
171                                         BIT(IEEE80211_BAND_5GHZ);
172
173         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
174         priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
175         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
176         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
177
178         iwl5000_set_ct_threshold(priv);
179
180         /* Set initial sensitivity parameters */
181         /* Set initial calibration set */
182         priv->hw_params.sens = &iwl5000_sensitivity;
183         priv->hw_params.calib_init_cfg =
184                 BIT(IWL_CALIB_XTAL)             |
185                 BIT(IWL_CALIB_LO)               |
186                 BIT(IWL_CALIB_TX_IQ)            |
187                 BIT(IWL_CALIB_TX_IQ_PERD)       |
188                 BIT(IWL_CALIB_BASE_BAND);
189
190         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
191
192         return 0;
193 }
194
195 static int iwl5150_hw_set_hw_params(struct iwl_priv *priv)
196 {
197         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
198             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
199                 priv->cfg->base_params->num_of_queues =
200                         iwlagn_mod_params.num_of_queues;
201
202         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
203         priv->hw_params.scd_bc_tbls_size =
204                         priv->cfg->base_params->num_of_queues *
205                         sizeof(struct iwlagn_scd_bc_tbl);
206         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
207         priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
208         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
209
210         priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
211         priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
212
213         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
214                                         BIT(IEEE80211_BAND_5GHZ);
215
216         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
217         priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
218         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
219         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
220
221         iwl5150_set_ct_threshold(priv);
222
223         /* Set initial sensitivity parameters */
224         /* Set initial calibration set */
225         priv->hw_params.sens = &iwl5150_sensitivity;
226         priv->hw_params.calib_init_cfg =
227                 BIT(IWL_CALIB_LO)               |
228                 BIT(IWL_CALIB_TX_IQ)            |
229                 BIT(IWL_CALIB_BASE_BAND);
230         if (priv->cfg->need_dc_calib)
231                 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
232
233         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
234
235         return 0;
236 }
237
238 static void iwl5150_temperature(struct iwl_priv *priv)
239 {
240         u32 vt = 0;
241         s32 offset =  iwl_temp_calib_to_offset(priv);
242
243         vt = le32_to_cpu(priv->statistics.common.temperature);
244         vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset;
245         /* now vt hold the temperature in Kelvin */
246         priv->temperature = KELVIN_TO_CELSIUS(vt);
247         iwl_tt_handler(priv);
248 }
249
250 static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
251                                      struct ieee80211_channel_switch *ch_switch)
252 {
253         /*
254          * MULTI-FIXME
255          * See iwl_mac_channel_switch.
256          */
257         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
258         struct iwl5000_channel_switch_cmd cmd;
259         const struct iwl_channel_info *ch_info;
260         u32 switch_time_in_usec, ucode_switch_time;
261         u16 ch;
262         u32 tsf_low;
263         u8 switch_count;
264         u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval);
265         struct ieee80211_vif *vif = ctx->vif;
266         struct iwl_host_cmd hcmd = {
267                 .id = REPLY_CHANNEL_SWITCH,
268                 .len = { sizeof(cmd), },
269                 .flags = CMD_SYNC,
270                 .data = { &cmd, },
271         };
272
273         cmd.band = priv->band == IEEE80211_BAND_2GHZ;
274         ch = ch_switch->channel->hw_value;
275         IWL_DEBUG_11H(priv, "channel switch from %d to %d\n",
276                       ctx->active.channel, ch);
277         cmd.channel = cpu_to_le16(ch);
278         cmd.rxon_flags = ctx->staging.flags;
279         cmd.rxon_filter_flags = ctx->staging.filter_flags;
280         switch_count = ch_switch->count;
281         tsf_low = ch_switch->timestamp & 0x0ffffffff;
282         /*
283          * calculate the ucode channel switch time
284          * adding TSF as one of the factor for when to switch
285          */
286         if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) {
287                 if (switch_count > ((priv->ucode_beacon_time - tsf_low) /
288                     beacon_interval)) {
289                         switch_count -= (priv->ucode_beacon_time -
290                                 tsf_low) / beacon_interval;
291                 } else
292                         switch_count = 0;
293         }
294         if (switch_count <= 1)
295                 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
296         else {
297                 switch_time_in_usec =
298                         vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
299                 ucode_switch_time = iwl_usecs_to_beacons(priv,
300                                                          switch_time_in_usec,
301                                                          beacon_interval);
302                 cmd.switch_time = iwl_add_beacon_time(priv,
303                                                       priv->ucode_beacon_time,
304                                                       ucode_switch_time,
305                                                       beacon_interval);
306         }
307         IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
308                       cmd.switch_time);
309         ch_info = iwl_get_channel_info(priv, priv->band, ch);
310         if (ch_info)
311                 cmd.expect_beacon = is_channel_radar(ch_info);
312         else {
313                 IWL_ERR(priv, "invalid channel switch from %u to %u\n",
314                         ctx->active.channel, ch);
315                 return -EFAULT;
316         }
317
318         return trans_send_cmd(priv, &hcmd);
319 }
320
321 static struct iwl_lib_ops iwl5000_lib = {
322         .set_hw_params = iwl5000_hw_set_hw_params,
323         .rx_handler_setup = iwlagn_rx_handler_setup,
324         .setup_deferred_work = iwlagn_setup_deferred_work,
325         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
326         .set_channel_switch = iwl5000_hw_channel_switch,
327         .nic_config = iwl5000_nic_config,
328         .eeprom_ops = {
329                 .regulatory_bands = {
330                         EEPROM_REG_BAND_1_CHANNELS,
331                         EEPROM_REG_BAND_2_CHANNELS,
332                         EEPROM_REG_BAND_3_CHANNELS,
333                         EEPROM_REG_BAND_4_CHANNELS,
334                         EEPROM_REG_BAND_5_CHANNELS,
335                         EEPROM_REG_BAND_24_HT40_CHANNELS,
336                         EEPROM_REG_BAND_52_HT40_CHANNELS
337                 },
338         },
339         .temperature = iwlagn_temperature,
340 };
341
342 static struct iwl_lib_ops iwl5150_lib = {
343         .set_hw_params = iwl5150_hw_set_hw_params,
344         .rx_handler_setup = iwlagn_rx_handler_setup,
345         .setup_deferred_work = iwlagn_setup_deferred_work,
346         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
347         .set_channel_switch = iwl5000_hw_channel_switch,
348         .nic_config = iwl5000_nic_config,
349         .eeprom_ops = {
350                 .regulatory_bands = {
351                         EEPROM_REG_BAND_1_CHANNELS,
352                         EEPROM_REG_BAND_2_CHANNELS,
353                         EEPROM_REG_BAND_3_CHANNELS,
354                         EEPROM_REG_BAND_4_CHANNELS,
355                         EEPROM_REG_BAND_5_CHANNELS,
356                         EEPROM_REG_BAND_24_HT40_CHANNELS,
357                         EEPROM_REG_BAND_52_HT40_CHANNELS
358                 },
359         },
360         .temperature = iwl5150_temperature,
361 };
362
363 static const struct iwl_ops iwl5000_ops = {
364         .lib = &iwl5000_lib,
365 };
366
367 static const struct iwl_ops iwl5150_ops = {
368         .lib = &iwl5150_lib,
369 };
370
371 static struct iwl_base_params iwl5000_base_params = {
372         .eeprom_size = IWLAGN_EEPROM_IMG_SIZE,
373         .num_of_queues = IWLAGN_NUM_QUEUES,
374         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
375         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
376         .led_compensation = 51,
377         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
378         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
379         .chain_noise_scale = 1000,
380         .wd_timeout = IWL_LONG_WD_TIMEOUT,
381         .max_event_log_size = 512,
382 };
383 static struct iwl_ht_params iwl5000_ht_params = {
384         .ht_greenfield_support = true,
385 };
386
387 #define IWL_DEVICE_5000                                         \
388         .fw_name_pre = IWL5000_FW_PRE,                          \
389         .ucode_api_max = IWL5000_UCODE_API_MAX,                 \
390         .ucode_api_min = IWL5000_UCODE_API_MIN,                 \
391         .eeprom_ver = EEPROM_5000_EEPROM_VERSION,               \
392         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,       \
393         .ops = &iwl5000_ops,                                    \
394         .base_params = &iwl5000_base_params,                    \
395         .led_mode = IWL_LED_BLINK
396
397 struct iwl_cfg iwl5300_agn_cfg = {
398         .name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
399         IWL_DEVICE_5000,
400         /* at least EEPROM 0x11A has wrong info */
401         .valid_tx_ant = ANT_ABC,        /* .cfg overwrite */
402         .valid_rx_ant = ANT_ABC,        /* .cfg overwrite */
403         .ht_params = &iwl5000_ht_params,
404 };
405
406 struct iwl_cfg iwl5100_bgn_cfg = {
407         .name = "Intel(R) WiFi Link 5100 BGN",
408         IWL_DEVICE_5000,
409         .valid_tx_ant = ANT_B,          /* .cfg overwrite */
410         .valid_rx_ant = ANT_AB,         /* .cfg overwrite */
411         .ht_params = &iwl5000_ht_params,
412 };
413
414 struct iwl_cfg iwl5100_abg_cfg = {
415         .name = "Intel(R) WiFi Link 5100 ABG",
416         IWL_DEVICE_5000,
417         .valid_tx_ant = ANT_B,          /* .cfg overwrite */
418         .valid_rx_ant = ANT_AB,         /* .cfg overwrite */
419 };
420
421 struct iwl_cfg iwl5100_agn_cfg = {
422         .name = "Intel(R) WiFi Link 5100 AGN",
423         IWL_DEVICE_5000,
424         .valid_tx_ant = ANT_B,          /* .cfg overwrite */
425         .valid_rx_ant = ANT_AB,         /* .cfg overwrite */
426         .ht_params = &iwl5000_ht_params,
427 };
428
429 struct iwl_cfg iwl5350_agn_cfg = {
430         .name = "Intel(R) WiMAX/WiFi Link 5350 AGN",
431         .fw_name_pre = IWL5000_FW_PRE,
432         .ucode_api_max = IWL5000_UCODE_API_MAX,
433         .ucode_api_min = IWL5000_UCODE_API_MIN,
434         .eeprom_ver = EEPROM_5050_EEPROM_VERSION,
435         .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
436         .ops = &iwl5000_ops,
437         .base_params = &iwl5000_base_params,
438         .ht_params = &iwl5000_ht_params,
439         .led_mode = IWL_LED_BLINK,
440         .internal_wimax_coex = true,
441 };
442
443 #define IWL_DEVICE_5150                                         \
444         .fw_name_pre = IWL5150_FW_PRE,                          \
445         .ucode_api_max = IWL5150_UCODE_API_MAX,                 \
446         .ucode_api_min = IWL5150_UCODE_API_MIN,                 \
447         .eeprom_ver = EEPROM_5050_EEPROM_VERSION,               \
448         .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,       \
449         .ops = &iwl5150_ops,                                    \
450         .base_params = &iwl5000_base_params,                    \
451         .need_dc_calib = true,                                  \
452         .led_mode = IWL_LED_BLINK,                              \
453         .internal_wimax_coex = true
454
455 struct iwl_cfg iwl5150_agn_cfg = {
456         .name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
457         IWL_DEVICE_5150,
458         .ht_params = &iwl5000_ht_params,
459
460 };
461
462 struct iwl_cfg iwl5150_abg_cfg = {
463         .name = "Intel(R) WiMAX/WiFi Link 5150 ABG",
464         IWL_DEVICE_5150,
465 };
466
467 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));
468 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX));