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 */
iwl1000_set_ct_threshold(struct iwl_priv * priv)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 */
iwl1000_nic_config(struct iwl_priv * priv)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
iwl1000_hw_set_hw_params(struct iwl_priv * priv)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 cfg(priv)->base_params->num_of_queues =
128 iwlagn_mod_params.num_of_queues;
129
130 hw_params(priv).max_txq_num = cfg(priv)->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(cfg(priv)->valid_tx_ant);
139 if (cfg(priv)->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(cfg(priv)->valid_rx_ant);
144 hw_params(priv).valid_tx_ant = cfg(priv)->valid_tx_ant;
145 hw_params(priv).valid_rx_ant = cfg(priv)->valid_rx_ant;
146
147 iwl1000_set_ct_threshold(priv);
148
149 /* Set initial sensitivity parameters */
150 hw_params(priv).sens = &iwl1000_sensitivity;
151
152 return 0;
153 }
154
155 static struct iwl_lib_ops iwl1000_lib = {
156 .set_hw_params = iwl1000_hw_set_hw_params,
157 .nic_config = iwl1000_nic_config,
158 .eeprom_ops = {
159 .regulatory_bands = {
160 EEPROM_REG_BAND_1_CHANNELS,
161 EEPROM_REG_BAND_2_CHANNELS,
162 EEPROM_REG_BAND_3_CHANNELS,
163 EEPROM_REG_BAND_4_CHANNELS,
164 EEPROM_REG_BAND_5_CHANNELS,
165 EEPROM_REG_BAND_24_HT40_CHANNELS,
166 EEPROM_REGULATORY_BAND_NO_HT40,
167 },
168 },
169 .temperature = iwlagn_temperature,
170 };
171
172 static struct iwl_base_params iwl1000_base_params = {
173 .num_of_queues = IWLAGN_NUM_QUEUES,
174 .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
175 .eeprom_size = OTP_LOW_IMAGE_SIZE,
176 .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
177 .max_ll_items = OTP_MAX_LL_ITEMS_1000,
178 .shadow_ram_support = false,
179 .led_compensation = 51,
180 .support_ct_kill_exit = true,
181 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
182 .chain_noise_scale = 1000,
183 .wd_timeout = IWL_DEF_WD_TIMEOUT,
184 .max_event_log_size = 128,
185 .wd_disable = true,
186 };
187 static struct iwl_ht_params iwl1000_ht_params = {
188 .ht_greenfield_support = true,
189 .use_rts_for_aggregation = true, /* use rts/cts protection */
190 .smps_mode = IEEE80211_SMPS_DYNAMIC,
191 };
192
193 #define IWL_DEVICE_1000 \
194 .fw_name_pre = IWL1000_FW_PRE, \
195 .ucode_api_max = IWL1000_UCODE_API_MAX, \
196 .ucode_api_ok = IWL1000_UCODE_API_OK, \
197 .ucode_api_min = IWL1000_UCODE_API_MIN, \
198 .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
199 .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
200 .lib = &iwl1000_lib, \
201 .base_params = &iwl1000_base_params, \
202 .led_mode = IWL_LED_BLINK
203
204 struct iwl_cfg iwl1000_bgn_cfg = {
205 .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
206 IWL_DEVICE_1000,
207 .ht_params = &iwl1000_ht_params,
208 };
209
210 struct iwl_cfg iwl1000_bg_cfg = {
211 .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
212 IWL_DEVICE_1000,
213 };
214
215 #define IWL_DEVICE_100 \
216 .fw_name_pre = IWL100_FW_PRE, \
217 .ucode_api_max = IWL100_UCODE_API_MAX, \
218 .ucode_api_ok = IWL100_UCODE_API_OK, \
219 .ucode_api_min = IWL100_UCODE_API_MIN, \
220 .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \
221 .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
222 .lib = &iwl1000_lib, \
223 .base_params = &iwl1000_base_params, \
224 .led_mode = IWL_LED_RF_STATE, \
225 .rx_with_siso_diversity = true
226
227 struct iwl_cfg iwl100_bgn_cfg = {
228 .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
229 IWL_DEVICE_100,
230 .ht_params = &iwl1000_ht_params,
231 };
232
233 struct iwl_cfg iwl100_bg_cfg = {
234 .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
235 IWL_DEVICE_100,
236 };
237
238 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
239 MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));
240