1 /******************************************************************************
2 *
3 * Copyright(c) 2008 - 2010 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-agn-led.h"
49 #include "iwl-agn-debugfs.h"
50
51 /* Highest firmware API version supported */
52 #define IWL1000_UCODE_API_MAX 5
53 #define IWL100_UCODE_API_MAX 5
54
55 /* Lowest firmware API version supported */
56 #define IWL1000_UCODE_API_MIN 1
57 #define IWL100_UCODE_API_MIN 5
58
59 #define IWL1000_FW_PRE "iwlwifi-1000-"
60 #define _IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE #api ".ucode"
61 #define IWL1000_MODULE_FIRMWARE(api) _IWL1000_MODULE_FIRMWARE(api)
62
63 #define IWL100_FW_PRE "iwlwifi-100-"
64 #define _IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE #api ".ucode"
65 #define IWL100_MODULE_FIRMWARE(api) _IWL100_MODULE_FIRMWARE(api)
66
67
68 /*
69 * For 1000, use advance thermal throttling critical temperature threshold,
70 * but legacy thermal management implementation for now.
71 * This is for the reason of 1000 uCode using advance thermal throttling API
72 * but not implement ct_kill_exit based on ct_kill exit temperature
73 * so the thermal throttling will still based on legacy thermal throttling
74 * management.
75 * The code here need to be modified once 1000 uCode has the advanced thermal
76 * throttling algorithm in place
77 */
iwl1000_set_ct_threshold(struct iwl_priv * priv)78 static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
79 {
80 /* want Celsius */
81 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
82 priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
83 }
84
85 /* NIC configuration for 1000 series */
iwl1000_nic_config(struct iwl_priv * priv)86 static void iwl1000_nic_config(struct iwl_priv *priv)
87 {
88 /* set CSR_HW_CONFIG_REG for uCode use */
89 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
90 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
91 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
92
93 /* Setting digital SVR for 1000 card to 1.32V */
94 /* locking is acquired in iwl_set_bits_mask_prph() function */
95 iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
96 APMG_SVR_DIGITAL_VOLTAGE_1_32,
97 ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
98 }
99
100 static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
101 .min_nrg_cck = 95,
102 .max_nrg_cck = 0, /* not used, set to 0 */
103 .auto_corr_min_ofdm = 90,
104 .auto_corr_min_ofdm_mrc = 170,
105 .auto_corr_min_ofdm_x1 = 120,
106 .auto_corr_min_ofdm_mrc_x1 = 240,
107
108 .auto_corr_max_ofdm = 120,
109 .auto_corr_max_ofdm_mrc = 210,
110 .auto_corr_max_ofdm_x1 = 155,
111 .auto_corr_max_ofdm_mrc_x1 = 290,
112
113 .auto_corr_min_cck = 125,
114 .auto_corr_max_cck = 200,
115 .auto_corr_min_cck_mrc = 170,
116 .auto_corr_max_cck_mrc = 400,
117 .nrg_th_cck = 95,
118 .nrg_th_ofdm = 95,
119
120 .barker_corr_th_min = 190,
121 .barker_corr_th_min_mrc = 390,
122 .nrg_th_cca = 62,
123 };
124
iwl1000_hw_set_hw_params(struct iwl_priv * priv)125 static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
126 {
127 if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
128 priv->cfg->mod_params->num_of_queues <= IWLAGN_NUM_QUEUES)
129 priv->cfg->base_params->num_of_queues =
130 priv->cfg->mod_params->num_of_queues;
131
132 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
133 priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
134 priv->hw_params.scd_bc_tbls_size =
135 priv->cfg->base_params->num_of_queues *
136 sizeof(struct iwlagn_scd_bc_tbl);
137 priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
138 priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
139 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
140
141 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
142 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
143
144 priv->hw_params.max_bsm_size = 0;
145 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
146 BIT(IEEE80211_BAND_5GHZ);
147 priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
148
149 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
150 if (priv->cfg->rx_with_siso_diversity)
151 priv->hw_params.rx_chains_num = 1;
152 else
153 priv->hw_params.rx_chains_num =
154 num_of_ant(priv->cfg->valid_rx_ant);
155 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
156 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
157
158 iwl1000_set_ct_threshold(priv);
159
160 /* Set initial sensitivity parameters */
161 /* Set initial calibration set */
162 priv->hw_params.sens = &iwl1000_sensitivity;
163 priv->hw_params.calib_init_cfg =
164 BIT(IWL_CALIB_XTAL) |
165 BIT(IWL_CALIB_LO) |
166 BIT(IWL_CALIB_TX_IQ) |
167 BIT(IWL_CALIB_TX_IQ_PERD) |
168 BIT(IWL_CALIB_BASE_BAND);
169 if (priv->cfg->need_dc_calib)
170 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
171
172 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
173
174 return 0;
175 }
176
177 static struct iwl_lib_ops iwl1000_lib = {
178 .set_hw_params = iwl1000_hw_set_hw_params,
179 .txq_update_byte_cnt_tbl = iwlagn_txq_update_byte_cnt_tbl,
180 .txq_inval_byte_cnt_tbl = iwlagn_txq_inval_byte_cnt_tbl,
181 .txq_set_sched = iwlagn_txq_set_sched,
182 .txq_agg_enable = iwlagn_txq_agg_enable,
183 .txq_agg_disable = iwlagn_txq_agg_disable,
184 .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
185 .txq_free_tfd = iwl_hw_txq_free_tfd,
186 .txq_init = iwl_hw_tx_queue_init,
187 .rx_handler_setup = iwlagn_rx_handler_setup,
188 .setup_deferred_work = iwlagn_setup_deferred_work,
189 .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
190 .load_ucode = iwlagn_load_ucode,
191 .dump_nic_event_log = iwl_dump_nic_event_log,
192 .dump_nic_error_log = iwl_dump_nic_error_log,
193 .dump_csr = iwl_dump_csr,
194 .dump_fh = iwl_dump_fh,
195 .init_alive_start = iwlagn_init_alive_start,
196 .alive_notify = iwlagn_alive_notify,
197 .send_tx_power = iwlagn_send_tx_power,
198 .update_chain_flags = iwl_update_chain_flags,
199 .apm_ops = {
200 .init = iwl_apm_init,
201 .config = iwl1000_nic_config,
202 },
203 .eeprom_ops = {
204 .regulatory_bands = {
205 EEPROM_REG_BAND_1_CHANNELS,
206 EEPROM_REG_BAND_2_CHANNELS,
207 EEPROM_REG_BAND_3_CHANNELS,
208 EEPROM_REG_BAND_4_CHANNELS,
209 EEPROM_REG_BAND_5_CHANNELS,
210 EEPROM_REG_BAND_24_HT40_CHANNELS,
211 EEPROM_REG_BAND_52_HT40_CHANNELS
212 },
213 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
214 .release_semaphore = iwlcore_eeprom_release_semaphore,
215 .calib_version = iwlagn_eeprom_calib_version,
216 .query_addr = iwlagn_eeprom_query_addr,
217 },
218 .isr_ops = {
219 .isr = iwl_isr_ict,
220 .free = iwl_free_isr_ict,
221 .alloc = iwl_alloc_isr_ict,
222 .reset = iwl_reset_ict,
223 .disable = iwl_disable_ict,
224 },
225 .temp_ops = {
226 .temperature = iwlagn_temperature,
227 },
228 .debugfs_ops = {
229 .rx_stats_read = iwl_ucode_rx_stats_read,
230 .tx_stats_read = iwl_ucode_tx_stats_read,
231 .general_stats_read = iwl_ucode_general_stats_read,
232 .bt_stats_read = iwl_ucode_bt_stats_read,
233 .reply_tx_error = iwl_reply_tx_error_read,
234 },
235 .txfifo_flush = iwlagn_txfifo_flush,
236 .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
237 .tt_ops = {
238 .lower_power_detection = iwl_tt_is_low_power_state,
239 .tt_power_mode = iwl_tt_current_power_mode,
240 .ct_kill_check = iwl_check_for_ct_kill,
241 }
242 };
243
244 static const struct iwl_ops iwl1000_ops = {
245 .lib = &iwl1000_lib,
246 .hcmd = &iwlagn_hcmd,
247 .utils = &iwlagn_hcmd_utils,
248 .led = &iwlagn_led_ops,
249 .ieee80211_ops = &iwlagn_hw_ops,
250 };
251
252 static struct iwl_base_params iwl1000_base_params = {
253 .num_of_queues = IWLAGN_NUM_QUEUES,
254 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
255 .eeprom_size = OTP_LOW_IMAGE_SIZE,
256 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
257 .set_l0s = true,
258 .use_bsm = false,
259 .max_ll_items = OTP_MAX_LL_ITEMS_1000,
260 .shadow_ram_support = false,
261 .led_compensation = 51,
262 .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
263 .support_ct_kill_exit = true,
264 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
265 .chain_noise_scale = 1000,
266 .wd_timeout = IWL_DEF_WD_TIMEOUT,
267 .max_event_log_size = 128,
268 .ucode_tracing = true,
269 .sensitivity_calib_by_driver = true,
270 .chain_noise_calib_by_driver = true,
271 };
272 static struct iwl_ht_params iwl1000_ht_params = {
273 .ht_greenfield_support = true,
274 .use_rts_for_aggregation = true, /* use rts/cts protection */
275 };
276
277 #define IWL_DEVICE_1000 \
278 .fw_name_pre = IWL1000_FW_PRE, \
279 .ucode_api_max = IWL1000_UCODE_API_MAX, \
280 .ucode_api_min = IWL1000_UCODE_API_MIN, \
281 .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
282 .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
283 .ops = &iwl1000_ops, \
284 .mod_params = &iwlagn_mod_params, \
285 .base_params = &iwl1000_base_params, \
286 .led_mode = IWL_LED_BLINK
287
288 struct iwl_cfg iwl1000_bgn_cfg = {
289 .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
290 IWL_DEVICE_1000,
291 .ht_params = &iwl1000_ht_params,
292 };
293
294 struct iwl_cfg iwl1000_bg_cfg = {
295 .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
296 IWL_DEVICE_1000,
297 };
298
299 #define IWL_DEVICE_100 \
300 .fw_name_pre = IWL100_FW_PRE, \
301 .ucode_api_max = IWL100_UCODE_API_MAX, \
302 .ucode_api_min = IWL100_UCODE_API_MIN, \
303 .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
304 .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
305 .ops = &iwl1000_ops, \
306 .mod_params = &iwlagn_mod_params, \
307 .base_params = &iwl1000_base_params, \
308 .led_mode = IWL_LED_RF_STATE, \
309 .rx_with_siso_diversity = true
310
311 struct iwl_cfg iwl100_bgn_cfg = {
312 .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
313 IWL_DEVICE_100,
314 .ht_params = &iwl1000_ht_params,
315 };
316
317 struct iwl_cfg iwl100_bg_cfg = {
318 .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
319 IWL_DEVICE_100,
320 };
321
322 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
323 MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));
324