iwlwifi: Constify struct iwl_ops
[linux-2.6.git] / drivers / net / wireless / iwlwifi / iwl-6000.c
1 /******************************************************************************
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3  * Copyright(c) 2008-2009 Intel Corporation. All rights reserved.
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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-helpers.h"
46 #include "iwl-5000-hw.h"
47 #include "iwl-6000-hw.h"
48 #include "iwl-agn-led.h"
49
50 /* Highest firmware API version supported */
51 #define IWL6000_UCODE_API_MAX 4
52 #define IWL6050_UCODE_API_MAX 4
53
54 /* Lowest firmware API version supported */
55 #define IWL6000_UCODE_API_MIN 4
56 #define IWL6050_UCODE_API_MIN 4
57
58 #define IWL6000_FW_PRE "iwlwifi-6000-"
59 #define _IWL6000_MODULE_FIRMWARE(api) IWL6000_FW_PRE #api ".ucode"
60 #define IWL6000_MODULE_FIRMWARE(api) _IWL6000_MODULE_FIRMWARE(api)
61
62 #define IWL6050_FW_PRE "iwlwifi-6050-"
63 #define _IWL6050_MODULE_FIRMWARE(api) IWL6050_FW_PRE #api ".ucode"
64 #define IWL6050_MODULE_FIRMWARE(api) _IWL6050_MODULE_FIRMWARE(api)
65
66 static void iwl6000_set_ct_threshold(struct iwl_priv *priv)
67 {
68         /* want Celsius */
69         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
70         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
71 }
72
73 /* NIC configuration for 6000 series */
74 static void iwl6000_nic_config(struct iwl_priv *priv)
75 {
76         u16 radio_cfg;
77
78         radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
79
80         /* write radio config values to register */
81         if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) <= EEPROM_RF_CONFIG_TYPE_MAX)
82                 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
83                             EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
84                             EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
85                             EEPROM_RF_CFG_DASH_MSK(radio_cfg));
86
87         /* set CSR_HW_CONFIG_REG for uCode use */
88         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
89                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
90                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
91
92         /* no locking required for register write */
93         if (priv->cfg->pa_type == IWL_PA_INTERNAL) {
94                 /* 2x2 IPA phy type */
95                 iwl_write32(priv, CSR_GP_DRIVER_REG,
96                              CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA);
97         }
98         /* else do nothing, uCode configured */
99 }
100
101 static struct iwl_sensitivity_ranges iwl6000_sensitivity = {
102         .min_nrg_cck = 97,
103         .max_nrg_cck = 0, /* not used, set to 0 */
104         .auto_corr_min_ofdm = 80,
105         .auto_corr_min_ofdm_mrc = 128,
106         .auto_corr_min_ofdm_x1 = 105,
107         .auto_corr_min_ofdm_mrc_x1 = 192,
108
109         .auto_corr_max_ofdm = 145,
110         .auto_corr_max_ofdm_mrc = 232,
111         .auto_corr_max_ofdm_x1 = 145,
112         .auto_corr_max_ofdm_mrc_x1 = 232,
113
114         .auto_corr_min_cck = 125,
115         .auto_corr_max_cck = 175,
116         .auto_corr_min_cck_mrc = 160,
117         .auto_corr_max_cck_mrc = 310,
118         .nrg_th_cck = 97,
119         .nrg_th_ofdm = 100,
120
121         .barker_corr_th_min = 190,
122         .barker_corr_th_min_mrc = 390,
123         .nrg_th_cca = 62,
124 };
125
126 static int iwl6000_hw_set_hw_params(struct iwl_priv *priv)
127 {
128         if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
129             priv->cfg->mod_params->num_of_queues <= IWL50_NUM_QUEUES)
130                 priv->cfg->num_of_queues =
131                         priv->cfg->mod_params->num_of_queues;
132
133         priv->hw_params.max_txq_num = priv->cfg->num_of_queues;
134         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
135         priv->hw_params.scd_bc_tbls_size =
136                         priv->cfg->num_of_queues *
137                         sizeof(struct iwl5000_scd_bc_tbl);
138         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
139         priv->hw_params.max_stations = IWL5000_STATION_COUNT;
140         priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
141
142         priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
143         priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
144
145         priv->hw_params.max_bsm_size = 0;
146         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
147                                         BIT(IEEE80211_BAND_5GHZ);
148         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
149
150         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
151         priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
152         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
153         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
154
155         if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
156                 priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
157
158         /* Set initial sensitivity parameters */
159         /* Set initial calibration set */
160         priv->hw_params.sens = &iwl6000_sensitivity;
161         priv->hw_params.calib_init_cfg =
162                         BIT(IWL_CALIB_XTAL)             |
163                         BIT(IWL_CALIB_LO)               |
164                         BIT(IWL_CALIB_TX_IQ)            |
165                         BIT(IWL_CALIB_BASE_BAND);
166         return 0;
167 }
168
169 static int iwl6000_hw_channel_switch(struct iwl_priv *priv, u16 channel)
170 {
171         struct iwl6000_channel_switch_cmd cmd;
172         const struct iwl_channel_info *ch_info;
173         struct iwl_host_cmd hcmd = {
174                 .id = REPLY_CHANNEL_SWITCH,
175                 .len = sizeof(cmd),
176                 .flags = CMD_SIZE_HUGE,
177                 .data = &cmd,
178         };
179
180         IWL_DEBUG_11H(priv, "channel switch from %d to %d\n",
181                 priv->active_rxon.channel, channel);
182
183         cmd.band = priv->band == IEEE80211_BAND_2GHZ;
184         cmd.channel = cpu_to_le16(channel);
185         cmd.rxon_flags = priv->staging_rxon.flags;
186         cmd.rxon_filter_flags = priv->staging_rxon.filter_flags;
187         cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
188         ch_info = iwl_get_channel_info(priv, priv->band, channel);
189         if (ch_info)
190                 cmd.expect_beacon = is_channel_radar(ch_info);
191         else {
192                 IWL_ERR(priv, "invalid channel switch from %u to %u\n",
193                         priv->active_rxon.channel, channel);
194                 return -EFAULT;
195         }
196         priv->switch_rxon.channel = cpu_to_le16(channel);
197         priv->switch_rxon.switch_in_progress = true;
198
199         return iwl_send_cmd_sync(priv, &hcmd);
200 }
201
202 static struct iwl_lib_ops iwl6000_lib = {
203         .set_hw_params = iwl6000_hw_set_hw_params,
204         .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
205         .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
206         .txq_set_sched = iwl5000_txq_set_sched,
207         .txq_agg_enable = iwl5000_txq_agg_enable,
208         .txq_agg_disable = iwl5000_txq_agg_disable,
209         .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
210         .txq_free_tfd = iwl_hw_txq_free_tfd,
211         .txq_init = iwl_hw_tx_queue_init,
212         .rx_handler_setup = iwl5000_rx_handler_setup,
213         .setup_deferred_work = iwl5000_setup_deferred_work,
214         .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
215         .load_ucode = iwl5000_load_ucode,
216         .dump_nic_event_log = iwl_dump_nic_event_log,
217         .dump_nic_error_log = iwl_dump_nic_error_log,
218         .dump_csr = iwl_dump_csr,
219         .init_alive_start = iwl5000_init_alive_start,
220         .alive_notify = iwl5000_alive_notify,
221         .send_tx_power = iwl5000_send_tx_power,
222         .update_chain_flags = iwl_update_chain_flags,
223         .set_channel_switch = iwl6000_hw_channel_switch,
224         .apm_ops = {
225                 .init = iwl_apm_init,
226                 .stop = iwl_apm_stop,
227                 .config = iwl6000_nic_config,
228                 .set_pwr_src = iwl_set_pwr_src,
229         },
230         .eeprom_ops = {
231                 .regulatory_bands = {
232                         EEPROM_5000_REG_BAND_1_CHANNELS,
233                         EEPROM_5000_REG_BAND_2_CHANNELS,
234                         EEPROM_5000_REG_BAND_3_CHANNELS,
235                         EEPROM_5000_REG_BAND_4_CHANNELS,
236                         EEPROM_5000_REG_BAND_5_CHANNELS,
237                         EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
238                         EEPROM_5000_REG_BAND_52_HT40_CHANNELS
239                 },
240                 .verify_signature  = iwlcore_eeprom_verify_signature,
241                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
242                 .release_semaphore = iwlcore_eeprom_release_semaphore,
243                 .calib_version  = iwl5000_eeprom_calib_version,
244                 .query_addr = iwl5000_eeprom_query_addr,
245                 .update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
246         },
247         .post_associate = iwl_post_associate,
248         .isr = iwl_isr_ict,
249         .config_ap = iwl_config_ap,
250         .temp_ops = {
251                 .temperature = iwl5000_temperature,
252                 .set_ct_kill = iwl6000_set_ct_threshold,
253          },
254 };
255
256 static const struct iwl_ops iwl6000_ops = {
257         .ucode = &iwl5000_ucode,
258         .lib = &iwl6000_lib,
259         .hcmd = &iwl5000_hcmd,
260         .utils = &iwl5000_hcmd_utils,
261         .led = &iwlagn_led_ops,
262 };
263
264 static struct iwl_hcmd_utils_ops iwl6050_hcmd_utils = {
265         .get_hcmd_size = iwl5000_get_hcmd_size,
266         .build_addsta_hcmd = iwl5000_build_addsta_hcmd,
267         .rts_tx_cmd_flag = iwl5000_rts_tx_cmd_flag,
268         .calc_rssi = iwl5000_calc_rssi,
269 };
270
271 static const struct iwl_ops iwl6050_ops = {
272         .ucode = &iwl5000_ucode,
273         .lib = &iwl6000_lib,
274         .hcmd = &iwl5000_hcmd,
275         .utils = &iwl6050_hcmd_utils,
276         .led = &iwlagn_led_ops,
277 };
278
279 /*
280  * "i": Internal configuration, use internal Power Amplifier
281  */
282 struct iwl_cfg iwl6000i_2agn_cfg = {
283         .name = "6000 Series 2x2 AGN",
284         .fw_name_pre = IWL6000_FW_PRE,
285         .ucode_api_max = IWL6000_UCODE_API_MAX,
286         .ucode_api_min = IWL6000_UCODE_API_MIN,
287         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
288         .ops = &iwl6000_ops,
289         .eeprom_size = OTP_LOW_IMAGE_SIZE,
290         .eeprom_ver = EEPROM_6000_EEPROM_VERSION,
291         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
292         .num_of_queues = IWL50_NUM_QUEUES,
293         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
294         .mod_params = &iwl50_mod_params,
295         .valid_tx_ant = ANT_BC,
296         .valid_rx_ant = ANT_BC,
297         .pll_cfg_val = 0,
298         .set_l0s = true,
299         .use_bsm = false,
300         .pa_type = IWL_PA_INTERNAL,
301         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
302         .shadow_ram_support = true,
303         .ht_greenfield_support = true,
304         .led_compensation = 51,
305         .use_rts_for_ht = true, /* use rts/cts protection */
306         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
307         .supports_idle = true,
308         .adv_thermal_throttle = true,
309         .support_ct_kill_exit = true,
310 };
311
312 struct iwl_cfg iwl6000i_2abg_cfg = {
313         .name = "6000 Series 2x2 ABG",
314         .fw_name_pre = IWL6000_FW_PRE,
315         .ucode_api_max = IWL6000_UCODE_API_MAX,
316         .ucode_api_min = IWL6000_UCODE_API_MIN,
317         .sku = IWL_SKU_A|IWL_SKU_G,
318         .ops = &iwl6000_ops,
319         .eeprom_size = OTP_LOW_IMAGE_SIZE,
320         .eeprom_ver = EEPROM_6000_EEPROM_VERSION,
321         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
322         .num_of_queues = IWL50_NUM_QUEUES,
323         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
324         .mod_params = &iwl50_mod_params,
325         .valid_tx_ant = ANT_BC,
326         .valid_rx_ant = ANT_BC,
327         .pll_cfg_val = 0,
328         .set_l0s = true,
329         .use_bsm = false,
330         .pa_type = IWL_PA_INTERNAL,
331         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
332         .shadow_ram_support = true,
333         .ht_greenfield_support = true,
334         .led_compensation = 51,
335         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
336         .supports_idle = true,
337         .adv_thermal_throttle = true,
338         .support_ct_kill_exit = true,
339 };
340
341 struct iwl_cfg iwl6000i_2bg_cfg = {
342         .name = "6000 Series 2x2 BG",
343         .fw_name_pre = IWL6000_FW_PRE,
344         .ucode_api_max = IWL6000_UCODE_API_MAX,
345         .ucode_api_min = IWL6000_UCODE_API_MIN,
346         .sku = IWL_SKU_G,
347         .ops = &iwl6000_ops,
348         .eeprom_size = OTP_LOW_IMAGE_SIZE,
349         .eeprom_ver = EEPROM_6000_EEPROM_VERSION,
350         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
351         .num_of_queues = IWL50_NUM_QUEUES,
352         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
353         .mod_params = &iwl50_mod_params,
354         .valid_tx_ant = ANT_BC,
355         .valid_rx_ant = ANT_BC,
356         .pll_cfg_val = 0,
357         .set_l0s = true,
358         .use_bsm = false,
359         .pa_type = IWL_PA_INTERNAL,
360         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
361         .shadow_ram_support = true,
362         .ht_greenfield_support = true,
363         .led_compensation = 51,
364         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
365         .supports_idle = true,
366         .adv_thermal_throttle = true,
367         .support_ct_kill_exit = true,
368 };
369
370 struct iwl_cfg iwl6050_2agn_cfg = {
371         .name = "6050 Series 2x2 AGN",
372         .fw_name_pre = IWL6050_FW_PRE,
373         .ucode_api_max = IWL6050_UCODE_API_MAX,
374         .ucode_api_min = IWL6050_UCODE_API_MIN,
375         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
376         .ops = &iwl6050_ops,
377         .eeprom_size = OTP_LOW_IMAGE_SIZE,
378         .eeprom_ver = EEPROM_6050_EEPROM_VERSION,
379         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
380         .num_of_queues = IWL50_NUM_QUEUES,
381         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
382         .mod_params = &iwl50_mod_params,
383         .valid_tx_ant = ANT_AB,
384         .valid_rx_ant = ANT_AB,
385         .pll_cfg_val = 0,
386         .set_l0s = true,
387         .use_bsm = false,
388         .pa_type = IWL_PA_SYSTEM,
389         .max_ll_items = OTP_MAX_LL_ITEMS_6x50,
390         .shadow_ram_support = true,
391         .ht_greenfield_support = true,
392         .led_compensation = 51,
393         .use_rts_for_ht = true, /* use rts/cts protection */
394         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
395         .supports_idle = true,
396         .adv_thermal_throttle = true,
397         .support_ct_kill_exit = true,
398 };
399
400 struct iwl_cfg iwl6050_2abg_cfg = {
401         .name = "6050 Series 2x2 ABG",
402         .fw_name_pre = IWL6050_FW_PRE,
403         .ucode_api_max = IWL6050_UCODE_API_MAX,
404         .ucode_api_min = IWL6050_UCODE_API_MIN,
405         .sku = IWL_SKU_A|IWL_SKU_G,
406         .ops = &iwl6050_ops,
407         .eeprom_size = OTP_LOW_IMAGE_SIZE,
408         .eeprom_ver = EEPROM_6050_EEPROM_VERSION,
409         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
410         .num_of_queues = IWL50_NUM_QUEUES,
411         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
412         .mod_params = &iwl50_mod_params,
413         .valid_tx_ant = ANT_AB,
414         .valid_rx_ant = ANT_AB,
415         .pll_cfg_val = 0,
416         .set_l0s = true,
417         .use_bsm = false,
418         .pa_type = IWL_PA_SYSTEM,
419         .max_ll_items = OTP_MAX_LL_ITEMS_6x50,
420         .shadow_ram_support = true,
421         .ht_greenfield_support = true,
422         .led_compensation = 51,
423         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
424         .supports_idle = true,
425         .adv_thermal_throttle = true,
426         .support_ct_kill_exit = true,
427 };
428
429 struct iwl_cfg iwl6000_3agn_cfg = {
430         .name = "6000 Series 3x3 AGN",
431         .fw_name_pre = IWL6000_FW_PRE,
432         .ucode_api_max = IWL6000_UCODE_API_MAX,
433         .ucode_api_min = IWL6000_UCODE_API_MIN,
434         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
435         .ops = &iwl6000_ops,
436         .eeprom_size = OTP_LOW_IMAGE_SIZE,
437         .eeprom_ver = EEPROM_6000_EEPROM_VERSION,
438         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
439         .num_of_queues = IWL50_NUM_QUEUES,
440         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
441         .mod_params = &iwl50_mod_params,
442         .valid_tx_ant = ANT_ABC,
443         .valid_rx_ant = ANT_ABC,
444         .pll_cfg_val = 0,
445         .set_l0s = true,
446         .use_bsm = false,
447         .pa_type = IWL_PA_SYSTEM,
448         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
449         .shadow_ram_support = true,
450         .ht_greenfield_support = true,
451         .led_compensation = 51,
452         .use_rts_for_ht = true, /* use rts/cts protection */
453         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
454         .supports_idle = true,
455         .adv_thermal_throttle = true,
456         .support_ct_kill_exit = true,
457 };
458
459 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));
460 MODULE_FIRMWARE(IWL6050_MODULE_FIRMWARE(IWL6050_UCODE_API_MAX));