iwlagn: clean up TXQ indirection
[linux-2.6.git] / drivers / net / wireless / iwlwifi / iwl-1000.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.,
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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
49 /* Highest firmware API version supported */
50 #define IWL1000_UCODE_API_MAX 5
51 #define IWL100_UCODE_API_MAX 5
52
53 /* Lowest firmware API version supported */
54 #define IWL1000_UCODE_API_MIN 1
55 #define IWL100_UCODE_API_MIN 5
56
57 #define IWL1000_FW_PRE "iwlwifi-1000-"
58 #define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE #api ".ucode"
59
60 #define IWL100_FW_PRE "iwlwifi-100-"
61 #define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE #api ".ucode"
62
63
64 /*
65  * For 1000, use advance thermal throttling critical temperature threshold,
66  * but legacy thermal management implementation for now.
67  * This is for the reason of 1000 uCode using advance thermal throttling API
68  * but not implement ct_kill_exit based on ct_kill exit temperature
69  * so the thermal throttling will still based on legacy thermal throttling
70  * management.
71  * The code here need to be modified once 1000 uCode has the advanced thermal
72  * throttling algorithm in place
73  */
74 static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
75 {
76         /* want Celsius */
77         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
78         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
79 }
80
81 /* NIC configuration for 1000 series */
82 static void iwl1000_nic_config(struct iwl_priv *priv)
83 {
84         /* set CSR_HW_CONFIG_REG for uCode use */
85         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
86                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
87                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
88
89         /* Setting digital SVR for 1000 card to 1.32V */
90         /* locking is acquired in iwl_set_bits_mask_prph() function */
91         iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
92                                 APMG_SVR_DIGITAL_VOLTAGE_1_32,
93                                 ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
94 }
95
96 static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
97         .min_nrg_cck = 95,
98         .max_nrg_cck = 0, /* not used, set to 0 */
99         .auto_corr_min_ofdm = 90,
100         .auto_corr_min_ofdm_mrc = 170,
101         .auto_corr_min_ofdm_x1 = 120,
102         .auto_corr_min_ofdm_mrc_x1 = 240,
103
104         .auto_corr_max_ofdm = 120,
105         .auto_corr_max_ofdm_mrc = 210,
106         .auto_corr_max_ofdm_x1 = 155,
107         .auto_corr_max_ofdm_mrc_x1 = 290,
108
109         .auto_corr_min_cck = 125,
110         .auto_corr_max_cck = 200,
111         .auto_corr_min_cck_mrc = 170,
112         .auto_corr_max_cck_mrc = 400,
113         .nrg_th_cck = 95,
114         .nrg_th_ofdm = 95,
115
116         .barker_corr_th_min = 190,
117         .barker_corr_th_min_mrc = 390,
118         .nrg_th_cca = 62,
119 };
120
121 static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
122 {
123         if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
124             iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
125                 priv->cfg->base_params->num_of_queues =
126                         iwlagn_mod_params.num_of_queues;
127
128         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
129         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
130         priv->hw_params.scd_bc_tbls_size =
131                         priv->cfg->base_params->num_of_queues *
132                         sizeof(struct iwlagn_scd_bc_tbl);
133         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
134         priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
135         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
136
137         priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
138         priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
139
140         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
141                                         BIT(IEEE80211_BAND_5GHZ);
142         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
143
144         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
145         if (priv->cfg->rx_with_siso_diversity)
146                 priv->hw_params.rx_chains_num = 1;
147         else
148                 priv->hw_params.rx_chains_num =
149                         num_of_ant(priv->cfg->valid_rx_ant);
150         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
151         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
152
153         iwl1000_set_ct_threshold(priv);
154
155         /* Set initial sensitivity parameters */
156         /* Set initial calibration set */
157         priv->hw_params.sens = &iwl1000_sensitivity;
158         priv->hw_params.calib_init_cfg =
159                         BIT(IWL_CALIB_XTAL)             |
160                         BIT(IWL_CALIB_LO)               |
161                         BIT(IWL_CALIB_TX_IQ)            |
162                         BIT(IWL_CALIB_TX_IQ_PERD)       |
163                         BIT(IWL_CALIB_BASE_BAND);
164         if (priv->cfg->need_dc_calib)
165                 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
166
167         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
168
169         return 0;
170 }
171
172 static struct iwl_lib_ops iwl1000_lib = {
173         .set_hw_params = iwl1000_hw_set_hw_params,
174         .rx_handler_setup = iwlagn_rx_handler_setup,
175         .setup_deferred_work = iwlagn_setup_deferred_work,
176         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
177         .send_tx_power = iwlagn_send_tx_power,
178         .update_chain_flags = iwl_update_chain_flags,
179         .apm_ops = {
180                 .init = iwl_apm_init,
181                 .config = iwl1000_nic_config,
182         },
183         .eeprom_ops = {
184                 .regulatory_bands = {
185                         EEPROM_REG_BAND_1_CHANNELS,
186                         EEPROM_REG_BAND_2_CHANNELS,
187                         EEPROM_REG_BAND_3_CHANNELS,
188                         EEPROM_REG_BAND_4_CHANNELS,
189                         EEPROM_REG_BAND_5_CHANNELS,
190                         EEPROM_REG_BAND_24_HT40_CHANNELS,
191                         EEPROM_REGULATORY_BAND_NO_HT40,
192                 },
193                 .query_addr = iwlagn_eeprom_query_addr,
194         },
195         .temp_ops = {
196                 .temperature = iwlagn_temperature,
197          },
198         .txfifo_flush = iwlagn_txfifo_flush,
199         .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
200 };
201
202 static const struct iwl_ops iwl1000_ops = {
203         .lib = &iwl1000_lib,
204         .hcmd = &iwlagn_hcmd,
205         .utils = &iwlagn_hcmd_utils,
206 };
207
208 static struct iwl_base_params iwl1000_base_params = {
209         .num_of_queues = IWLAGN_NUM_QUEUES,
210         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
211         .eeprom_size = OTP_LOW_IMAGE_SIZE,
212         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
213         .max_ll_items = OTP_MAX_LL_ITEMS_1000,
214         .shadow_ram_support = false,
215         .led_compensation = 51,
216         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
217         .support_ct_kill_exit = true,
218         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
219         .chain_noise_scale = 1000,
220         .wd_timeout = IWL_DEF_WD_TIMEOUT,
221         .max_event_log_size = 128,
222 };
223 static struct iwl_ht_params iwl1000_ht_params = {
224         .ht_greenfield_support = true,
225         .use_rts_for_aggregation = true, /* use rts/cts protection */
226 };
227
228 #define IWL_DEVICE_1000                                         \
229         .fw_name_pre = IWL1000_FW_PRE,                          \
230         .ucode_api_max = IWL1000_UCODE_API_MAX,                 \
231         .ucode_api_min = IWL1000_UCODE_API_MIN,                 \
232         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
233         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
234         .ops = &iwl1000_ops,                                    \
235         .base_params = &iwl1000_base_params,                    \
236         .led_mode = IWL_LED_BLINK
237
238 struct iwl_cfg iwl1000_bgn_cfg = {
239         .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
240         IWL_DEVICE_1000,
241         .ht_params = &iwl1000_ht_params,
242 };
243
244 struct iwl_cfg iwl1000_bg_cfg = {
245         .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
246         IWL_DEVICE_1000,
247 };
248
249 #define IWL_DEVICE_100                                          \
250         .fw_name_pre = IWL100_FW_PRE,                           \
251         .ucode_api_max = IWL100_UCODE_API_MAX,                  \
252         .ucode_api_min = IWL100_UCODE_API_MIN,                  \
253         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
254         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
255         .ops = &iwl1000_ops,                                    \
256         .base_params = &iwl1000_base_params,                    \
257         .led_mode = IWL_LED_RF_STATE,                           \
258         .rx_with_siso_diversity = true
259
260 struct iwl_cfg iwl100_bgn_cfg = {
261         .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
262         IWL_DEVICE_100,
263         .ht_params = &iwl1000_ht_params,
264 };
265
266 struct iwl_cfg iwl100_bg_cfg = {
267         .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
268         IWL_DEVICE_100,
269 };
270
271 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
272 MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));