summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/iwlwifi/iwl-1000.c
blob: ba78bc8a259fe21078cb76343ac37a3df0770f49 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
/******************************************************************************
 *
 * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <asm/unaligned.h>

#include "iwl-eeprom.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-sta.h"
#include "iwl-agn.h"
#include "iwl-helpers.h"
#include "iwl-agn-hw.h"
#include "iwl-agn-led.h"
#include "iwl-agn-debugfs.h"

/* Highest firmware API version supported */
#define IWL1000_UCODE_API_MAX 3
#define IWL100_UCODE_API_MAX 5

/* Lowest firmware API version supported */
#define IWL1000_UCODE_API_MIN 1
#define IWL100_UCODE_API_MIN 5

#define IWL1000_FW_PRE "iwlwifi-1000-"
#define _IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE #api ".ucode"
#define IWL1000_MODULE_FIRMWARE(api) _IWL1000_MODULE_FIRMWARE(api)

#define IWL100_FW_PRE "iwlwifi-100-"
#define _IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE #api ".ucode"
#define IWL100_MODULE_FIRMWARE(api) _IWL100_MODULE_FIRMWARE(api)


/*
 * For 1000, use advance thermal throttling critical temperature threshold,
 * but legacy thermal management implementation for now.
 * This is for the reason of 1000 uCode using advance thermal throttling API
 * but not implement ct_kill_exit based on ct_kill exit temperature
 * so the thermal throttling will still based on legacy thermal throttling
 * management.
 * The code here need to be modified once 1000 uCode has the advanced thermal
 * throttling algorithm in place
 */
static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
{
	/* want Celsius */
	priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
	priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
}

/* NIC configuration for 1000 series */
static void iwl1000_nic_config(struct iwl_priv *priv)
{
	/* set CSR_HW_CONFIG_REG for uCode use */
	iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
		    CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
		    CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);

	/* Setting digital SVR for 1000 card to 1.32V */
	/* locking is acquired in iwl_set_bits_mask_prph() function */
	iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
				APMG_SVR_DIGITAL_VOLTAGE_1_32,
				~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
}

static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
	.min_nrg_cck = 95,
	.max_nrg_cck = 0, /* not used, set to 0 */
	.auto_corr_min_ofdm = 90,
	.auto_corr_min_ofdm_mrc = 170,
	.auto_corr_min_ofdm_x1 = 120,
	.auto_corr_min_ofdm_mrc_x1 = 240,

	.auto_corr_max_ofdm = 120,
	.auto_corr_max_ofdm_mrc = 210,
	.auto_corr_max_ofdm_x1 = 155,
	.auto_corr_max_ofdm_mrc_x1 = 290,

	.auto_corr_min_cck = 125,
	.auto_corr_max_cck = 200,
	.auto_corr_min_cck_mrc = 170,
	.auto_corr_max_cck_mrc = 400,
	.nrg_th_cck = 95,
	.nrg_th_ofdm = 95,

	.barker_corr_th_min = 190,
	.barker_corr_th_min_mrc = 390,
	.nrg_th_cca = 62,
};

static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
{
	if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
	    priv->cfg->mod_params->num_of_queues <= IWLAGN_NUM_QUEUES)
		priv->cfg->base_params->num_of_queues =
			priv->cfg->mod_params->num_of_queues;

	priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
	priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
	priv->hw_params.scd_bc_tbls_size =
			priv->cfg->base_params->num_of_queues *
			sizeof(struct iwlagn_scd_bc_tbl);
	priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
	priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
	priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;

	priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
	priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;

	priv->hw_params.max_bsm_size = 0;
	priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
					BIT(IEEE80211_BAND_5GHZ);
	priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;

	priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
	if (priv->cfg->rx_with_siso_diversity)
		priv->hw_params.rx_chains_num = 1;
	else
		priv->hw_params.rx_chains_num =
			num_of_ant(priv->cfg->valid_rx_ant);
	priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
	priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;

	iwl1000_set_ct_threshold(priv);

	/* Set initial sensitivity parameters */
	/* Set initial calibration set */
	priv->hw_params.sens = &iwl1000_sensitivity;
	priv->hw_params.calib_init_cfg =
			BIT(IWL_CALIB_XTAL)		|
			BIT(IWL_CALIB_LO)		|
			BIT(IWL_CALIB_TX_IQ) 		|
			BIT(IWL_CALIB_TX_IQ_PERD)	|
			BIT(IWL_CALIB_BASE_BAND);
	if (priv->cfg->need_dc_calib)
		priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);

	priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;

	return 0;
}

static struct iwl_lib_ops iwl1000_lib = {
	.set_hw_params = iwl1000_hw_set_hw_params,
	.txq_update_byte_cnt_tbl = iwlagn_txq_update_byte_cnt_tbl,
	.txq_inval_byte_cnt_tbl = iwlagn_txq_inval_byte_cnt_tbl,
	.txq_set_sched = iwlagn_txq_set_sched,
	.txq_agg_enable = iwlagn_txq_agg_enable,
	.txq_agg_disable = iwlagn_txq_agg_disable,
	.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
	.txq_free_tfd = iwl_hw_txq_free_tfd,
	.txq_init = iwl_hw_tx_queue_init,
	.rx_handler_setup = iwlagn_rx_handler_setup,
	.setup_deferred_work = iwlagn_setup_deferred_work,
	.is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
	.load_ucode = iwlagn_load_ucode,
	.dump_nic_event_log = iwl_dump_nic_event_log,
	.dump_nic_error_log = iwl_dump_nic_error_log,
	.dump_csr = iwl_dump_csr,
	.dump_fh = iwl_dump_fh,
	.init_alive_start = iwlagn_init_alive_start,
	.alive_notify = iwlagn_alive_notify,
	.send_tx_power = iwlagn_send_tx_power,
	.update_chain_flags = iwl_update_chain_flags,
	.apm_ops = {
		.init = iwl_apm_init,
		.config = iwl1000_nic_config,
	},
	.eeprom_ops = {
		.regulatory_bands = {
			EEPROM_REG_BAND_1_CHANNELS,
			EEPROM_REG_BAND_2_CHANNELS,
			EEPROM_REG_BAND_3_CHANNELS,
			EEPROM_REG_BAND_4_CHANNELS,
			EEPROM_REG_BAND_5_CHANNELS,
			EEPROM_REG_BAND_24_HT40_CHANNELS,
			EEPROM_REG_BAND_52_HT40_CHANNELS
		},
		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
		.release_semaphore = iwlcore_eeprom_release_semaphore,
		.calib_version	= iwlagn_eeprom_calib_version,
		.query_addr = iwlagn_eeprom_query_addr,
	},
	.isr_ops = {
		.isr = iwl_isr_ict,
		.free = iwl_free_isr_ict,
		.alloc = iwl_alloc_isr_ict,
		.reset = iwl_reset_ict,
		.disable = iwl_disable_ict,
	},
	.temp_ops = {
		.temperature = iwlagn_temperature,
	 },
	.debugfs_ops = {
		.rx_stats_read = iwl_ucode_rx_stats_read,
		.tx_stats_read = iwl_ucode_tx_stats_read,
		.general_stats_read = iwl_ucode_general_stats_read,
		.bt_stats_read = iwl_ucode_bt_stats_read,
		.reply_tx_error = iwl_reply_tx_error_read,
	},
	.check_plcp_health = iwl_good_plcp_health,
	.check_ack_health = iwl_good_ack_health,
	.txfifo_flush = iwlagn_txfifo_flush,
	.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
	.tt_ops = {
		.lower_power_detection = iwl_tt_is_low_power_state,
		.tt_power_mode = iwl_tt_current_power_mode,
		.ct_kill_check = iwl_check_for_ct_kill,
	}
};

static const struct iwl_ops iwl1000_ops = {
	.lib = &iwl1000_lib,
	.hcmd = &iwlagn_hcmd,
	.utils = &iwlagn_hcmd_utils,
	.led = &iwlagn_led_ops,
	.ieee80211_ops = &iwlagn_hw_ops,
};

static struct iwl_base_params iwl1000_base_params = {
	.num_of_queues = IWLAGN_NUM_QUEUES,
	.num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
	.eeprom_size = OTP_LOW_IMAGE_SIZE,
	.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
	.set_l0s = true,
	.use_bsm = false,
	.max_ll_items = OTP_MAX_LL_ITEMS_1000,
	.shadow_ram_support = false,
	.led_compensation = 51,
	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
	.support_ct_kill_exit = true,
	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
	.chain_noise_scale = 1000,
	.wd_timeout = IWL_DEF_WD_TIMEOUT,
	.max_event_log_size = 128,
	.ucode_tracing = true,
	.sensitivity_calib_by_driver = true,
	.chain_noise_calib_by_driver = true,
};
static struct iwl_ht_params iwl1000_ht_params = {
	.ht_greenfield_support = true,
	.use_rts_for_aggregation = true, /* use rts/cts protection */
};

#define IWL_DEVICE_1000						\
	.fw_name_pre = IWL1000_FW_PRE,				\
	.ucode_api_max = IWL1000_UCODE_API_MAX,			\
	.ucode_api_min = IWL1000_UCODE_API_MIN,			\
	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,		\
	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
	.ops = &iwl1000_ops,					\
	.mod_params = &iwlagn_mod_params,			\
	.base_params = &iwl1000_base_params,			\
	.led_mode = IWL_LED_BLINK

struct iwl_cfg iwl1000_bgn_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
	IWL_DEVICE_1000,
	.ht_params = &iwl1000_ht_params,
};

struct iwl_cfg iwl1000_bg_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
	IWL_DEVICE_1000,
};

#define IWL_DEVICE_100						\
	.fw_name_pre = IWL100_FW_PRE,				\
	.ucode_api_max = IWL100_UCODE_API_MAX,			\
	.ucode_api_min = IWL100_UCODE_API_MIN,			\
	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,		\
	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
	.ops = &iwl1000_ops,					\
	.mod_params = &iwlagn_mod_params,			\
	.base_params = &iwl1000_base_params,			\
	.led_mode = IWL_LED_RF_STATE,				\
	.rx_with_siso_diversity = true

struct iwl_cfg iwl100_bgn_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
	IWL_DEVICE_100,
	.ht_params = &iwl1000_ht_params,
};

struct iwl_cfg iwl100_bg_cfg = {
	.name = "Intel(R) Centrino(R) Wireless-N 100 BG",
	IWL_DEVICE_100,
};

MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));