/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/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#include <linux/stringify.h>
 40
 41#include "iwl-eeprom.h"
 42#include "iwl-dev.h"
 43#include "iwl-core.h"
 44#include "iwl-io.h"
 45#include "iwl-sta.h"
 46#include "iwl-agn.h"
 47#include "iwl-helpers.h"
 48#include "iwl-agn-hw.h"
 49
 50/* Highest firmware API version supported */
 51#define IWL1000_UCODE_API_MAX 5
 52#define IWL100_UCODE_API_MAX 5
 53
 54/* Lowest firmware API version supported */
 55#define IWL1000_UCODE_API_MIN 1
 56#define IWL100_UCODE_API_MIN 5
 57
 58#define IWL1000_FW_PRE "iwlwifi-1000-"
 59#define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE __stringify(api) ".ucode"
 60
 61#define IWL100_FW_PRE "iwlwifi-100-"
 62#define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"
 63
 64
 65/*
 66 * For 1000, use advance thermal throttling critical temperature threshold,
 67 * but legacy thermal management implementation for now.
 68 * This is for the reason of 1000 uCode using advance thermal throttling API
 69 * but not implement ct_kill_exit based on ct_kill exit temperature
 70 * so the thermal throttling will still based on legacy thermal throttling
 71 * management.
 72 * The code here need to be modified once 1000 uCode has the advanced thermal
 73 * throttling algorithm in place
 74 */
 75static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
 76{
 77	/* want Celsius */
 78	priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
 79	priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
 80}
 81
 82/* NIC configuration for 1000 series */
 83static void iwl1000_nic_config(struct iwl_priv *priv)
 84{
 85	/* set CSR_HW_CONFIG_REG for uCode use */
 86	iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 87		    CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 88		    CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
 89
 90	/* Setting digital SVR for 1000 card to 1.32V */
 91	/* locking is acquired in iwl_set_bits_mask_prph() function */
 92	iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
 93				APMG_SVR_DIGITAL_VOLTAGE_1_32,
 94				~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
 95}
 96
 97static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
 98	.min_nrg_cck = 95,
 99	.max_nrg_cck = 0, /* not used, set to 0 */
100	.auto_corr_min_ofdm = 90,
101	.auto_corr_min_ofdm_mrc = 170,
102	.auto_corr_min_ofdm_x1 = 120,
103	.auto_corr_min_ofdm_mrc_x1 = 240,
104
105	.auto_corr_max_ofdm = 120,
106	.auto_corr_max_ofdm_mrc = 210,
107	.auto_corr_max_ofdm_x1 = 155,
108	.auto_corr_max_ofdm_mrc_x1 = 290,
109
110	.auto_corr_min_cck = 125,
111	.auto_corr_max_cck = 200,
112	.auto_corr_min_cck_mrc = 170,
113	.auto_corr_max_cck_mrc = 400,
114	.nrg_th_cck = 95,
115	.nrg_th_ofdm = 95,
116
117	.barker_corr_th_min = 190,
118	.barker_corr_th_min_mrc = 390,
119	.nrg_th_cca = 62,
120};
121
122static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
123{
124	if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
125	    iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
126		priv->cfg->base_params->num_of_queues =
127			iwlagn_mod_params.num_of_queues;
128
129	priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
130	priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
131	priv->hw_params.scd_bc_tbls_size =
132			priv->cfg->base_params->num_of_queues *
133			sizeof(struct iwlagn_scd_bc_tbl);
134	priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
135	priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
136	priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
137
138	priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
139	priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
140
141	priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
142					BIT(IEEE80211_BAND_5GHZ);
143	priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
144
145	priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
146	if (priv->cfg->rx_with_siso_diversity)
147		priv->hw_params.rx_chains_num = 1;
148	else
149		priv->hw_params.rx_chains_num =
150			num_of_ant(priv->cfg->valid_rx_ant);
151	priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
152	priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
153
154	iwl1000_set_ct_threshold(priv);
155
156	/* Set initial sensitivity parameters */
157	/* Set initial calibration set */
158	priv->hw_params.sens = &iwl1000_sensitivity;
159	priv->hw_params.calib_init_cfg =
160			BIT(IWL_CALIB_XTAL)		|
161			BIT(IWL_CALIB_LO)		|
162			BIT(IWL_CALIB_TX_IQ) 		|
163			BIT(IWL_CALIB_TX_IQ_PERD)	|
164			BIT(IWL_CALIB_BASE_BAND);
165	if (priv->cfg->need_dc_calib)
166		priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
167
168	priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
169
170	return 0;
171}
172
173static struct iwl_lib_ops iwl1000_lib = {
174	.set_hw_params = iwl1000_hw_set_hw_params,
175	.rx_handler_setup = iwlagn_rx_handler_setup,
176	.setup_deferred_work = iwlagn_setup_deferred_work,
177	.is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
178	.send_tx_power = iwlagn_send_tx_power,
179	.update_chain_flags = iwl_update_chain_flags,
180	.apm_ops = {
181		.init = iwl_apm_init,
182		.config = iwl1000_nic_config,
183	},
184	.eeprom_ops = {
185		.regulatory_bands = {
186			EEPROM_REG_BAND_1_CHANNELS,
187			EEPROM_REG_BAND_2_CHANNELS,
188			EEPROM_REG_BAND_3_CHANNELS,
189			EEPROM_REG_BAND_4_CHANNELS,
190			EEPROM_REG_BAND_5_CHANNELS,
191			EEPROM_REG_BAND_24_HT40_CHANNELS,
192			EEPROM_REGULATORY_BAND_NO_HT40,
193		},
194		.query_addr = iwlagn_eeprom_query_addr,
195	},
196	.temp_ops = {
197		.temperature = iwlagn_temperature,
198	 },
199	.txfifo_flush = iwlagn_txfifo_flush,
200	.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
201};
202
203static const struct iwl_ops iwl1000_ops = {
204	.lib = &iwl1000_lib,
205	.hcmd = &iwlagn_hcmd,
206	.utils = &iwlagn_hcmd_utils,
207};
208
209static struct iwl_base_params iwl1000_base_params = {
210	.num_of_queues = IWLAGN_NUM_QUEUES,
211	.num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
212	.eeprom_size = OTP_LOW_IMAGE_SIZE,
213	.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
214	.max_ll_items = OTP_MAX_LL_ITEMS_1000,
215	.shadow_ram_support = false,
216	.led_compensation = 51,
217	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
218	.support_ct_kill_exit = true,
219	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
220	.chain_noise_scale = 1000,
221	.wd_timeout = IWL_DEF_WD_TIMEOUT,
222	.max_event_log_size = 128,
223};
224static struct iwl_ht_params iwl1000_ht_params = {
225	.ht_greenfield_support = true,
226	.use_rts_for_aggregation = true, /* use rts/cts protection */
227};
228
229#define IWL_DEVICE_1000						\
230	.fw_name_pre = IWL1000_FW_PRE,				\
231	.ucode_api_max = IWL1000_UCODE_API_MAX,			\
232	.ucode_api_min = IWL1000_UCODE_API_MIN,			\
233	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,		\
234	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
235	.ops = &iwl1000_ops,					\
236	.base_params = &iwl1000_base_params,			\
237	.led_mode = IWL_LED_BLINK
238
239struct iwl_cfg iwl1000_bgn_cfg = {
240	.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
241	IWL_DEVICE_1000,
242	.ht_params = &iwl1000_ht_params,
243};
244
245struct iwl_cfg iwl1000_bg_cfg = {
246	.name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
247	IWL_DEVICE_1000,
248};
249
250#define IWL_DEVICE_100						\
251	.fw_name_pre = IWL100_FW_PRE,				\
252	.ucode_api_max = IWL100_UCODE_API_MAX,			\
253	.ucode_api_min = IWL100_UCODE_API_MIN,			\
254	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,		\
255	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
256	.ops = &iwl1000_ops,					\
257	.base_params = &iwl1000_base_params,			\
258	.led_mode = IWL_LED_RF_STATE,				\
259	.rx_with_siso_diversity = true
260
261struct iwl_cfg iwl100_bgn_cfg = {
262	.name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
263	IWL_DEVICE_100,
264	.ht_params = &iwl1000_ht_params,
265};
266
267struct iwl_cfg iwl100_bg_cfg = {
268	.name = "Intel(R) Centrino(R) Wireless-N 100 BG",
269	IWL_DEVICE_100,
270};
271
272MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
273MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));