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Viewing changes to drivers/net/wireless/iwlwifi/iwl-1000.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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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.
 
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/delay.h>
 
31
#include <linux/skbuff.h>
 
32
#include <linux/netdevice.h>
 
33
#include <net/mac80211.h>
 
34
#include <linux/etherdevice.h>
 
35
#include <asm/unaligned.h>
 
36
#include <linux/stringify.h>
 
37
 
 
38
#include "iwl-eeprom.h"
 
39
#include "iwl-dev.h"
 
40
#include "iwl-core.h"
 
41
#include "iwl-io.h"
 
42
#include "iwl-agn.h"
 
43
#include "iwl-agn-hw.h"
 
44
#include "iwl-shared.h"
 
45
#include "iwl-cfg.h"
 
46
 
 
47
/* Highest firmware API version supported */
 
48
#define IWL1000_UCODE_API_MAX 6
 
49
#define IWL100_UCODE_API_MAX 6
 
50
 
 
51
/* Oldest version we won't warn about */
 
52
#define IWL1000_UCODE_API_OK 5
 
53
#define IWL100_UCODE_API_OK 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 __stringify(api) ".ucode"
 
61
 
 
62
#define IWL100_FW_PRE "iwlwifi-100-"
 
63
#define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"
 
64
 
 
65
 
 
66
/*
 
67
 * For 1000, use advance thermal throttling critical temperature threshold,
 
68
 * but legacy thermal management implementation for now.
 
69
 * This is for the reason of 1000 uCode using advance thermal throttling API
 
70
 * but not implement ct_kill_exit based on ct_kill exit temperature
 
71
 * so the thermal throttling will still based on legacy thermal throttling
 
72
 * management.
 
73
 * The code here need to be modified once 1000 uCode has the advanced thermal
 
74
 * throttling algorithm in place
 
75
 */
 
76
static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
 
77
{
 
78
        /* want Celsius */
 
79
        hw_params(priv).ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
 
80
        hw_params(priv).ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
 
81
}
 
82
 
 
83
/* NIC configuration for 1000 series */
 
84
static void iwl1000_nic_config(struct iwl_priv *priv)
 
85
{
 
86
        /* set CSR_HW_CONFIG_REG for uCode use */
 
87
        iwl_set_bit(bus(priv), CSR_HW_IF_CONFIG_REG,
 
88
                    CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 
89
                    CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
 
90
 
 
91
        /* Setting digital SVR for 1000 card to 1.32V */
 
92
        /* locking is acquired in iwl_set_bits_mask_prph() function */
 
93
        iwl_set_bits_mask_prph(bus(priv), APMG_DIGITAL_SVR_REG,
 
94
                                APMG_SVR_DIGITAL_VOLTAGE_1_32,
 
95
                                ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
 
96
}
 
97
 
 
98
static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
 
99
        .min_nrg_cck = 95,
 
100
        .max_nrg_cck = 0, /* not used, set to 0 */
 
101
        .auto_corr_min_ofdm = 90,
 
102
        .auto_corr_min_ofdm_mrc = 170,
 
103
        .auto_corr_min_ofdm_x1 = 120,
 
104
        .auto_corr_min_ofdm_mrc_x1 = 240,
 
105
 
 
106
        .auto_corr_max_ofdm = 120,
 
107
        .auto_corr_max_ofdm_mrc = 210,
 
108
        .auto_corr_max_ofdm_x1 = 155,
 
109
        .auto_corr_max_ofdm_mrc_x1 = 290,
 
110
 
 
111
        .auto_corr_min_cck = 125,
 
112
        .auto_corr_max_cck = 200,
 
113
        .auto_corr_min_cck_mrc = 170,
 
114
        .auto_corr_max_cck_mrc = 400,
 
115
        .nrg_th_cck = 95,
 
116
        .nrg_th_ofdm = 95,
 
117
 
 
118
        .barker_corr_th_min = 190,
 
119
        .barker_corr_th_min_mrc = 390,
 
120
        .nrg_th_cca = 62,
 
121
};
 
122
 
 
123
static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 
124
{
 
125
        if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
 
126
            iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
 
127
                priv->cfg->base_params->num_of_queues =
 
128
                        iwlagn_mod_params.num_of_queues;
 
129
 
 
130
        hw_params(priv).max_txq_num = priv->cfg->base_params->num_of_queues;
 
131
        priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
 
132
 
 
133
        hw_params(priv).max_data_size = IWLAGN_RTC_DATA_SIZE;
 
134
        hw_params(priv).max_inst_size = IWLAGN_RTC_INST_SIZE;
 
135
 
 
136
        hw_params(priv).ht40_channel =  BIT(IEEE80211_BAND_2GHZ);
 
137
 
 
138
        hw_params(priv).tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 
139
        if (priv->cfg->rx_with_siso_diversity)
 
140
                hw_params(priv).rx_chains_num = 1;
 
141
        else
 
142
                hw_params(priv).rx_chains_num =
 
143
                        num_of_ant(priv->cfg->valid_rx_ant);
 
144
        hw_params(priv).valid_tx_ant = priv->cfg->valid_tx_ant;
 
145
        hw_params(priv).valid_rx_ant = priv->cfg->valid_rx_ant;
 
146
 
 
147
        iwl1000_set_ct_threshold(priv);
 
148
 
 
149
        /* Set initial sensitivity parameters */
 
150
        /* Set initial calibration set */
 
151
        hw_params(priv).sens = &iwl1000_sensitivity;
 
152
        hw_params(priv).calib_init_cfg =
 
153
                        BIT(IWL_CALIB_XTAL)             |
 
154
                        BIT(IWL_CALIB_LO)               |
 
155
                        BIT(IWL_CALIB_TX_IQ)            |
 
156
                        BIT(IWL_CALIB_TX_IQ_PERD)       |
 
157
                        BIT(IWL_CALIB_BASE_BAND);
 
158
        if (priv->cfg->need_dc_calib)
 
159
                hw_params(priv).calib_init_cfg |= BIT(IWL_CALIB_DC);
 
160
 
 
161
        return 0;
 
162
}
 
163
 
 
164
static struct iwl_lib_ops iwl1000_lib = {
 
165
        .set_hw_params = iwl1000_hw_set_hw_params,
 
166
        .nic_config = iwl1000_nic_config,
 
167
        .eeprom_ops = {
 
168
                .regulatory_bands = {
 
169
                        EEPROM_REG_BAND_1_CHANNELS,
 
170
                        EEPROM_REG_BAND_2_CHANNELS,
 
171
                        EEPROM_REG_BAND_3_CHANNELS,
 
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                        EEPROM_REG_BAND_4_CHANNELS,
 
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                        EEPROM_REG_BAND_5_CHANNELS,
 
174
                        EEPROM_REG_BAND_24_HT40_CHANNELS,
 
175
                        EEPROM_REGULATORY_BAND_NO_HT40,
 
176
                },
 
177
        },
 
178
        .temperature = iwlagn_temperature,
 
179
};
 
180
 
 
181
static struct iwl_base_params iwl1000_base_params = {
 
182
        .num_of_queues = IWLAGN_NUM_QUEUES,
 
183
        .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 
184
        .eeprom_size = OTP_LOW_IMAGE_SIZE,
 
185
        .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 
186
        .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 
187
        .shadow_ram_support = false,
 
188
        .led_compensation = 51,
 
189
        .support_ct_kill_exit = true,
 
190
        .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 
191
        .chain_noise_scale = 1000,
 
192
        .wd_timeout = IWL_DEF_WD_TIMEOUT,
 
193
        .max_event_log_size = 128,
 
194
        .wd_disable = true,
 
195
};
 
196
static struct iwl_ht_params iwl1000_ht_params = {
 
197
        .ht_greenfield_support = true,
 
198
        .use_rts_for_aggregation = true, /* use rts/cts protection */
 
199
        .smps_mode = IEEE80211_SMPS_DYNAMIC,
 
200
};
 
201
 
 
202
#define IWL_DEVICE_1000                                         \
 
203
        .fw_name_pre = IWL1000_FW_PRE,                          \
 
204
        .ucode_api_max = IWL1000_UCODE_API_MAX,                 \
 
205
        .ucode_api_ok = IWL1000_UCODE_API_OK,                   \
 
206
        .ucode_api_min = IWL1000_UCODE_API_MIN,                 \
 
207
        .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 
208
        .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 
209
        .lib = &iwl1000_lib,                                    \
 
210
        .base_params = &iwl1000_base_params,                    \
 
211
        .led_mode = IWL_LED_BLINK
 
212
 
 
213
struct iwl_cfg iwl1000_bgn_cfg = {
 
214
        .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
 
215
        IWL_DEVICE_1000,
 
216
        .ht_params = &iwl1000_ht_params,
 
217
};
 
218
 
 
219
struct iwl_cfg iwl1000_bg_cfg = {
 
220
        .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
 
221
        IWL_DEVICE_1000,
 
222
};
 
223
 
 
224
#define IWL_DEVICE_100                                          \
 
225
        .fw_name_pre = IWL100_FW_PRE,                           \
 
226
        .ucode_api_max = IWL100_UCODE_API_MAX,                  \
 
227
        .ucode_api_ok = IWL100_UCODE_API_OK,                    \
 
228
        .ucode_api_min = IWL100_UCODE_API_MIN,                  \
 
229
        .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 
230
        .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 
231
        .lib = &iwl1000_lib,                                    \
 
232
        .base_params = &iwl1000_base_params,                    \
 
233
        .led_mode = IWL_LED_RF_STATE,                           \
 
234
        .rx_with_siso_diversity = true
 
235
 
 
236
struct iwl_cfg iwl100_bgn_cfg = {
 
237
        .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
 
238
        IWL_DEVICE_100,
 
239
        .ht_params = &iwl1000_ht_params,
 
240
};
 
241
 
 
242
struct iwl_cfg iwl100_bg_cfg = {
 
243
        .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
 
244
        IWL_DEVICE_100,
 
245
};
 
246
 
 
247
MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
 
248
MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));