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iwlagn: reserve queue 10 for TX during scan dwell
[mirror_ubuntu-eoan-kernel.git] / drivers / net / wireless / iwlwifi / iwl-1000.c
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1/******************************************************************************
2 *
901069c7 3 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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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>
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30#include <linux/delay.h>
31#include <linux/skbuff.h>
32#include <linux/netdevice.h>
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33#include <net/mac80211.h>
34#include <linux/etherdevice.h>
35#include <asm/unaligned.h>
8fcbd4dc 36#include <linux/stringify.h>
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37
38#include "iwl-eeprom.h"
39#include "iwl-dev.h"
40#include "iwl-core.h"
41#include "iwl-io.h"
42#include "iwl-sta.h"
a1175124 43#include "iwl-agn.h"
c5d05698 44#include "iwl-helpers.h"
19e6cda0 45#include "iwl-agn-hw.h"
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46
47/* Highest firmware API version supported */
fea41cc9 48#define IWL1000_UCODE_API_MAX 5
1de19ecc 49#define IWL100_UCODE_API_MAX 5
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50
51/* Lowest firmware API version supported */
77dcb6a9 52#define IWL1000_UCODE_API_MIN 1
1de19ecc 53#define IWL100_UCODE_API_MIN 5
c5d05698 54
77dcb6a9 55#define IWL1000_FW_PRE "iwlwifi-1000-"
8fcbd4dc 56#define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE __stringify(api) ".ucode"
c5d05698 57
1de19ecc 58#define IWL100_FW_PRE "iwlwifi-100-"
8fcbd4dc 59#define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"
1de19ecc 60
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61
62/*
63 * For 1000, use advance thermal throttling critical temperature threshold,
64 * but legacy thermal management implementation for now.
65 * This is for the reason of 1000 uCode using advance thermal throttling API
66 * but not implement ct_kill_exit based on ct_kill exit temperature
67 * so the thermal throttling will still based on legacy thermal throttling
68 * management.
69 * The code here need to be modified once 1000 uCode has the advanced thermal
70 * throttling algorithm in place
71 */
72static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
73{
74 /* want Celsius */
75 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
76 priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
77}
78
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79/* NIC configuration for 1000 series */
80static void iwl1000_nic_config(struct iwl_priv *priv)
81{
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82 /* set CSR_HW_CONFIG_REG for uCode use */
83 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
84 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
85 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
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86
87 /* Setting digital SVR for 1000 card to 1.32V */
88 /* locking is acquired in iwl_set_bits_mask_prph() function */
89 iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
90 APMG_SVR_DIGITAL_VOLTAGE_1_32,
91 ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
92}
93
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94static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
95 .min_nrg_cck = 95,
96 .max_nrg_cck = 0, /* not used, set to 0 */
97 .auto_corr_min_ofdm = 90,
98 .auto_corr_min_ofdm_mrc = 170,
99 .auto_corr_min_ofdm_x1 = 120,
100 .auto_corr_min_ofdm_mrc_x1 = 240,
101
102 .auto_corr_max_ofdm = 120,
103 .auto_corr_max_ofdm_mrc = 210,
104 .auto_corr_max_ofdm_x1 = 155,
105 .auto_corr_max_ofdm_mrc_x1 = 290,
106
107 .auto_corr_min_cck = 125,
108 .auto_corr_max_cck = 200,
109 .auto_corr_min_cck_mrc = 170,
110 .auto_corr_max_cck_mrc = 400,
111 .nrg_th_cck = 95,
112 .nrg_th_ofdm = 95,
113
114 .barker_corr_th_min = 190,
115 .barker_corr_th_min_mrc = 390,
116 .nrg_th_cca = 62,
117};
118
119static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
120{
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121 if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
122 iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
7cb1b088 123 priv->cfg->base_params->num_of_queues =
9d143e9a 124 iwlagn_mod_params.num_of_queues;
fac06108 125
7cb1b088 126 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
fac06108 127 priv->hw_params.scd_bc_tbls_size =
7cb1b088 128 priv->cfg->base_params->num_of_queues *
19e6cda0 129 sizeof(struct iwlagn_scd_bc_tbl);
fac06108 130 priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
bf3c7fdd 131 priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
a194e324 132 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
fac06108 133
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134 priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
135 priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
fac06108 136
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137 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
138 BIT(IEEE80211_BAND_5GHZ);
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139
140 priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
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141 if (priv->cfg->rx_with_siso_diversity)
142 priv->hw_params.rx_chains_num = 1;
143 else
144 priv->hw_params.rx_chains_num =
145 num_of_ant(priv->cfg->valid_rx_ant);
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146 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
147 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
148
0453674c 149 iwl1000_set_ct_threshold(priv);
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150
151 /* Set initial sensitivity parameters */
152 /* Set initial calibration set */
153 priv->hw_params.sens = &iwl1000_sensitivity;
154 priv->hw_params.calib_init_cfg =
155 BIT(IWL_CALIB_XTAL) |
156 BIT(IWL_CALIB_LO) |
157 BIT(IWL_CALIB_TX_IQ) |
158 BIT(IWL_CALIB_TX_IQ_PERD) |
159 BIT(IWL_CALIB_BASE_BAND);
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160 if (priv->cfg->need_dc_calib)
161 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
fac06108 162
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163 priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
164
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165 return 0;
166}
167
672639de 168static struct iwl_lib_ops iwl1000_lib = {
fac06108 169 .set_hw_params = iwl1000_hw_set_hw_params,
e4c598b7 170 .nic_config = iwl1000_nic_config,
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171 .eeprom_ops = {
172 .regulatory_bands = {
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173 EEPROM_REG_BAND_1_CHANNELS,
174 EEPROM_REG_BAND_2_CHANNELS,
175 EEPROM_REG_BAND_3_CHANNELS,
176 EEPROM_REG_BAND_4_CHANNELS,
177 EEPROM_REG_BAND_5_CHANNELS,
178 EEPROM_REG_BAND_24_HT40_CHANNELS,
5cab35e7 179 EEPROM_REGULATORY_BAND_NO_HT40,
672639de 180 },
672639de 181 },
909fc3cb 182 .temperature = iwlagn_temperature,
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183};
184
7cb1b088 185static struct iwl_base_params iwl1000_base_params = {
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186 .num_of_queues = IWLAGN_NUM_QUEUES,
187 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
7cb1b088 188 .eeprom_size = OTP_LOW_IMAGE_SIZE,
fadb3582 189 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
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190 .max_ll_items = OTP_MAX_LL_ITEMS_1000,
191 .shadow_ram_support = false,
f2d0d0e2 192 .led_compensation = 51,
d8c07e7a 193 .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
480e8407 194 .support_ct_kill_exit = true,
6c3872e1 195 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
d4fe5ac9 196 .chain_noise_scale = 1000,
22de94de 197 .wd_timeout = IWL_DEF_WD_TIMEOUT,
678b385d 198 .max_event_log_size = 128,
c5d05698 199};
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200static struct iwl_ht_params iwl1000_ht_params = {
201 .ht_greenfield_support = true,
202 .use_rts_for_aggregation = true, /* use rts/cts protection */
15b3f3b0 203 .smps_mode = IEEE80211_SMPS_STATIC,
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204};
205
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206#define IWL_DEVICE_1000 \
207 .fw_name_pre = IWL1000_FW_PRE, \
208 .ucode_api_max = IWL1000_UCODE_API_MAX, \
209 .ucode_api_min = IWL1000_UCODE_API_MIN, \
210 .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
211 .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
90c300cb 212 .lib = &iwl1000_lib, \
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213 .base_params = &iwl1000_base_params, \
214 .led_mode = IWL_LED_BLINK
215
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216struct iwl_cfg iwl1000_bgn_cfg = {
217 .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
65af8dea 218 IWL_DEVICE_1000,
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219 .ht_params = &iwl1000_ht_params,
220};
c5d05698 221
4bd0914f 222struct iwl_cfg iwl1000_bg_cfg = {
c11362c0 223 .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
65af8dea 224 IWL_DEVICE_1000,
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225};
226
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227#define IWL_DEVICE_100 \
228 .fw_name_pre = IWL100_FW_PRE, \
229 .ucode_api_max = IWL100_UCODE_API_MAX, \
230 .ucode_api_min = IWL100_UCODE_API_MIN, \
231 .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
232 .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
90c300cb 233 .lib = &iwl1000_lib, \
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234 .base_params = &iwl1000_base_params, \
235 .led_mode = IWL_LED_RF_STATE, \
236 .rx_with_siso_diversity = true
237
1de19ecc 238struct iwl_cfg iwl100_bgn_cfg = {
638514ff 239 .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
65af8dea 240 IWL_DEVICE_100,
7cb1b088 241 .ht_params = &iwl1000_ht_params,
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242};
243
244struct iwl_cfg iwl100_bg_cfg = {
638514ff 245 .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
65af8dea 246 IWL_DEVICE_100,
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247};
248
9554b34a 249MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
1de19ecc 250MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));