Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[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.
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/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
50 /* Highest firmware API version supported */
51 #define IWL2030_UCODE_API_MAX 5
52 #define IWL2000_UCODE_API_MAX 5
53 #define IWL105_UCODE_API_MAX 5
54
55 /* Lowest firmware API version supported */
56 #define IWL2030_UCODE_API_MIN 5
57 #define IWL2000_UCODE_API_MIN 5
58 #define IWL105_UCODE_API_MIN 5
59
60 #define IWL2030_FW_PRE "iwlwifi-2030-"
61 #define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE #api ".ucode"
62
63 #define IWL2000_FW_PRE "iwlwifi-2000-"
64 #define IWL2000_MODULE_FIRMWARE(api) IWL2000_FW_PRE #api ".ucode"
65
66 #define IWL105_FW_PRE "iwlwifi-105-"
67 #define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE #api ".ucode"
68
69 static void iwl2000_set_ct_threshold(struct iwl_priv *priv)
70 {
71         /* want Celsius */
72         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
73         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
74 }
75
76 /* NIC configuration for 2000 series */
77 static void iwl2000_nic_config(struct iwl_priv *priv)
78 {
79         u16 radio_cfg;
80
81         radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
82
83         /* write radio config values to register */
84         if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) <= EEPROM_RF_CONFIG_TYPE_MAX)
85         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
86                         EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
87                         EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
88                         EEPROM_RF_CFG_DASH_MSK(radio_cfg));
89
90         /* set CSR_HW_CONFIG_REG for uCode use */
91         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
92                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
93                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
94
95         if (priv->cfg->iq_invert)
96                 iwl_set_bit(priv, CSR_GP_DRIVER_REG,
97                             CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER);
98
99         if (priv->cfg->disable_otp_refresh)
100                 iwl_write_prph(priv, APMG_ANALOG_SVR_REG, 0x80000010);
101 }
102
103 static struct iwl_sensitivity_ranges iwl2000_sensitivity = {
104         .min_nrg_cck = 97,
105         .max_nrg_cck = 0, /* not used, set to 0 */
106         .auto_corr_min_ofdm = 80,
107         .auto_corr_min_ofdm_mrc = 128,
108         .auto_corr_min_ofdm_x1 = 105,
109         .auto_corr_min_ofdm_mrc_x1 = 192,
110
111         .auto_corr_max_ofdm = 145,
112         .auto_corr_max_ofdm_mrc = 232,
113         .auto_corr_max_ofdm_x1 = 110,
114         .auto_corr_max_ofdm_mrc_x1 = 232,
115
116         .auto_corr_min_cck = 125,
117         .auto_corr_max_cck = 175,
118         .auto_corr_min_cck_mrc = 160,
119         .auto_corr_max_cck_mrc = 310,
120         .nrg_th_cck = 97,
121         .nrg_th_ofdm = 100,
122
123         .barker_corr_th_min = 190,
124         .barker_corr_th_min_mrc = 390,
125         .nrg_th_cca = 62,
126 };
127
128 static int iwl2000_hw_set_hw_params(struct iwl_priv *priv)
129 {
130         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
131             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
132                 priv->cfg->base_params->num_of_queues =
133                         iwlagn_mod_params.num_of_queues;
134
135         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
136         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
137         priv->hw_params.scd_bc_tbls_size =
138                 priv->cfg->base_params->num_of_queues *
139                 sizeof(struct iwlagn_scd_bc_tbl);
140         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
141         priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
142         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
143
144         priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
145         priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
146
147         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
148                                         BIT(IEEE80211_BAND_5GHZ);
149         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
150
151         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
152         if (priv->cfg->rx_with_siso_diversity)
153                 priv->hw_params.rx_chains_num = 1;
154         else
155                 priv->hw_params.rx_chains_num =
156                         num_of_ant(priv->cfg->valid_rx_ant);
157         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
158         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
159
160         iwl2000_set_ct_threshold(priv);
161
162         /* Set initial sensitivity parameters */
163         /* Set initial calibration set */
164         priv->hw_params.sens = &iwl2000_sensitivity;
165         priv->hw_params.calib_init_cfg =
166                 BIT(IWL_CALIB_XTAL)             |
167                 BIT(IWL_CALIB_LO)               |
168                 BIT(IWL_CALIB_TX_IQ)            |
169                 BIT(IWL_CALIB_BASE_BAND);
170         if (priv->cfg->need_dc_calib)
171                 priv->hw_params.calib_rt_cfg |= BIT(IWL_CALIB_CFG_DC_IDX);
172         if (priv->cfg->need_temp_offset_calib)
173                 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_TEMP_OFFSET);
174
175         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
176
177         return 0;
178 }
179
180 static struct iwl_lib_ops iwl2000_lib = {
181         .set_hw_params = iwl2000_hw_set_hw_params,
182         .rx_handler_setup = iwlagn_rx_handler_setup,
183         .setup_deferred_work = iwlagn_bt_setup_deferred_work,
184         .cancel_deferred_work = iwlagn_bt_cancel_deferred_work,
185         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
186         .update_chain_flags = iwl_update_chain_flags,
187         .apm_ops = {
188                 .init = iwl_apm_init,
189                 .config = iwl2000_nic_config,
190         },
191         .eeprom_ops = {
192                 .regulatory_bands = {
193                         EEPROM_REG_BAND_1_CHANNELS,
194                         EEPROM_REG_BAND_2_CHANNELS,
195                         EEPROM_REG_BAND_3_CHANNELS,
196                         EEPROM_REG_BAND_4_CHANNELS,
197                         EEPROM_REG_BAND_5_CHANNELS,
198                         EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
199                         EEPROM_REGULATORY_BAND_NO_HT40,
200                 },
201                 .query_addr = iwlagn_eeprom_query_addr,
202                 .update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
203         },
204         .temp_ops = {
205                 .temperature = iwlagn_temperature,
206         },
207         .txfifo_flush = iwlagn_txfifo_flush,
208         .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
209 };
210
211 static const struct iwl_ops iwl2000_ops = {
212         .lib = &iwl2000_lib,
213         .hcmd = &iwlagn_hcmd,
214         .utils = &iwlagn_hcmd_utils,
215 };
216
217 static const struct iwl_ops iwl2030_ops = {
218         .lib = &iwl2000_lib,
219         .hcmd = &iwlagn_bt_hcmd,
220         .utils = &iwlagn_hcmd_utils,
221 };
222
223 static const struct iwl_ops iwl105_ops = {
224         .lib = &iwl2000_lib,
225         .hcmd = &iwlagn_hcmd,
226         .utils = &iwlagn_hcmd_utils,
227 };
228
229 static const struct iwl_ops iwl135_ops = {
230         .lib = &iwl2000_lib,
231         .hcmd = &iwlagn_bt_hcmd,
232         .utils = &iwlagn_hcmd_utils,
233 };
234
235 static struct iwl_base_params iwl2000_base_params = {
236         .eeprom_size = OTP_LOW_IMAGE_SIZE,
237         .num_of_queues = IWLAGN_NUM_QUEUES,
238         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
239         .pll_cfg_val = 0,
240         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
241         .shadow_ram_support = true,
242         .led_compensation = 51,
243         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
244         .adv_thermal_throttle = true,
245         .support_ct_kill_exit = true,
246         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
247         .chain_noise_scale = 1000,
248         .wd_timeout = IWL_DEF_WD_TIMEOUT,
249         .max_event_log_size = 512,
250         .shadow_reg_enable = true,
251 };
252
253
254 static struct iwl_base_params iwl2030_base_params = {
255         .eeprom_size = OTP_LOW_IMAGE_SIZE,
256         .num_of_queues = IWLAGN_NUM_QUEUES,
257         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
258         .pll_cfg_val = 0,
259         .max_ll_items = OTP_MAX_LL_ITEMS_2x00,
260         .shadow_ram_support = true,
261         .led_compensation = 57,
262         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
263         .adv_thermal_throttle = true,
264         .support_ct_kill_exit = true,
265         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
266         .chain_noise_scale = 1000,
267         .wd_timeout = IWL_LONG_WD_TIMEOUT,
268         .max_event_log_size = 512,
269         .shadow_reg_enable = true,
270 };
271
272 static struct iwl_ht_params iwl2000_ht_params = {
273         .ht_greenfield_support = true,
274         .use_rts_for_aggregation = true, /* use rts/cts protection */
275 };
276
277 static struct iwl_bt_params iwl2030_bt_params = {
278         /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
279         .advanced_bt_coexist = true,
280         .agg_time_limit = BT_AGG_THRESHOLD_DEF,
281         .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
282         .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
283         .bt_sco_disable = true,
284         .bt_session_2 = true,
285 };
286
287 #define IWL_DEVICE_2000                                         \
288         .fw_name_pre = IWL2000_FW_PRE,                          \
289         .ucode_api_max = IWL2000_UCODE_API_MAX,                 \
290         .ucode_api_min = IWL2000_UCODE_API_MIN,                 \
291         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
292         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
293         .ops = &iwl2000_ops,                                    \
294         .base_params = &iwl2000_base_params,                    \
295         .need_dc_calib = true,                                  \
296         .need_temp_offset_calib = true,                         \
297         .led_mode = IWL_LED_RF_STATE,                           \
298         .iq_invert = true,                                      \
299         .disable_otp_refresh = true                             \
300
301 struct iwl_cfg iwl2000_2bgn_cfg = {
302         .name = "2000 Series 2x2 BGN",
303         IWL_DEVICE_2000,
304         .ht_params = &iwl2000_ht_params,
305 };
306
307 struct iwl_cfg iwl2000_2bg_cfg = {
308         .name = "2000 Series 2x2 BG",
309         IWL_DEVICE_2000,
310 };
311
312 #define IWL_DEVICE_2030                                         \
313         .fw_name_pre = IWL2030_FW_PRE,                          \
314         .ucode_api_max = IWL2030_UCODE_API_MAX,                 \
315         .ucode_api_min = IWL2030_UCODE_API_MIN,                 \
316         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
317         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
318         .ops = &iwl2030_ops,                                    \
319         .base_params = &iwl2030_base_params,                    \
320         .bt_params = &iwl2030_bt_params,                        \
321         .need_dc_calib = true,                                  \
322         .need_temp_offset_calib = true,                         \
323         .led_mode = IWL_LED_RF_STATE,                           \
324         .adv_pm = true,                                         \
325         .iq_invert = true                                       \
326
327 struct iwl_cfg iwl2030_2bgn_cfg = {
328         .name = "2000 Series 2x2 BGN/BT",
329         IWL_DEVICE_2030,
330         .ht_params = &iwl2000_ht_params,
331 };
332
333 struct iwl_cfg iwl2030_2bg_cfg = {
334         .name = "2000 Series 2x2 BG/BT",
335         IWL_DEVICE_2030,
336 };
337
338 #define IWL_DEVICE_105                                          \
339         .fw_name_pre = IWL105_FW_PRE,                           \
340         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
341         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
342         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
343         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
344         .ops = &iwl105_ops,                                     \
345         .base_params = &iwl2000_base_params,                    \
346         .need_dc_calib = true,                                  \
347         .need_temp_offset_calib = true,                         \
348         .led_mode = IWL_LED_RF_STATE,                           \
349         .adv_pm = true,                                         \
350         .rx_with_siso_diversity = true                          \
351
352 struct iwl_cfg iwl105_bg_cfg = {
353         .name = "105 Series 1x1 BG",
354         IWL_DEVICE_105,
355 };
356
357 struct iwl_cfg iwl105_bgn_cfg = {
358         .name = "105 Series 1x1 BGN",
359         IWL_DEVICE_105,
360         .ht_params = &iwl2000_ht_params,
361 };
362
363 #define IWL_DEVICE_135                                          \
364         .fw_name_pre = IWL105_FW_PRE,                           \
365         .ucode_api_max = IWL105_UCODE_API_MAX,                  \
366         .ucode_api_min = IWL105_UCODE_API_MIN,                  \
367         .eeprom_ver = EEPROM_2000_EEPROM_VERSION,               \
368         .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION,       \
369         .ops = &iwl135_ops,                                     \
370         .base_params = &iwl2030_base_params,                    \
371         .bt_params = &iwl2030_bt_params,                        \
372         .need_dc_calib = true,                                  \
373         .need_temp_offset_calib = true,                         \
374         .led_mode = IWL_LED_RF_STATE,                           \
375         .adv_pm = true,                                         \
376         .rx_with_siso_diversity = true                          \
377
378 struct iwl_cfg iwl135_bg_cfg = {
379         .name = "105 Series 1x1 BG/BT",
380         IWL_DEVICE_135,
381 };
382
383 struct iwl_cfg iwl135_bgn_cfg = {
384         .name = "105 Series 1x1 BGN/BT",
385         IWL_DEVICE_135,
386         .ht_params = &iwl2000_ht_params,
387 };
388
389 MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX));
390 MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX));
391 MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX));