drivers/net/wireless/iwlwifi/iwl-1000.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2008 - 2010 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
  40 #include "iwl-eeprom.h"
  41 #include "iwl-dev.h"
  42 #include "iwl-core.h"
  43 #include "iwl-io.h"
  44 #include "iwl-sta.h"
  45 #include "iwl-agn.h"
  46 #include "iwl-helpers.h"
  47 #include "iwl-agn-hw.h"
  48 #include "iwl-agn-led.h"
  49 #include "iwl-agn-debugfs.h"
  50
  51 /* Highest firmware API version supported */
  52 #define IWL1000_UCODE_API_MAX 3
  53
  54 /* Lowest firmware API version supported */
  55 #define IWL1000_UCODE_API_MIN 1
  56
  57 #define IWL1000_FW_PRE "iwlwifi-1000-"
  58 #define _IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE #api ".ucode"
  59 #define IWL1000_MODULE_FIRMWARE(api) _IWL1000_MODULE_FIRMWARE(api)
  60
  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  */
  72 static 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
  79 /* NIC configuration for 1000 series */
  80 static void iwl1000_nic_config(struct iwl_priv *priv)
  81 {
  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);
  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
  94 static 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
 119 static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 120 {
 121         if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
 122             priv->cfg->mod_params->num_of_queues <= IWLAGN_NUM_QUEUES)
 123                 priv->cfg->num_of_queues =
 124                         priv->cfg->mod_params->num_of_queues;
 125
 126         priv->hw_params.max_txq_num = priv->cfg->num_of_queues;
 127         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
 128         priv->hw_params.scd_bc_tbls_size =
 129                         priv->cfg->num_of_queues *
 130                         sizeof(struct iwlagn_scd_bc_tbl);
 131         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 132         priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
 133         priv->hw_params.bcast_sta_id = IWLAGN_BROADCAST_ID;
 134
 135         priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
 136         priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
 137
 138         priv->hw_params.max_bsm_size = 0;
 139         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 140                                         BIT(IEEE80211_BAND_5GHZ);
 141         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 142
 143         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 144         priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
 145         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
 146         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 147
 148         if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
 149                 priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
 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);
 160         if (priv->cfg->need_dc_calib)
 161                 priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
 162
 163         priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
 164
 165         return 0;
 166 }
 167
 168 static struct iwl_lib_ops iwl1000_lib = {
 169         .set_hw_params = iwl1000_hw_set_hw_params,
 170         .txq_update_byte_cnt_tbl = iwlagn_txq_update_byte_cnt_tbl,
 171         .txq_inval_byte_cnt_tbl = iwlagn_txq_inval_byte_cnt_tbl,
 172         .txq_set_sched = iwlagn_txq_set_sched,
 173         .txq_agg_enable = iwlagn_txq_agg_enable,
 174         .txq_agg_disable = iwlagn_txq_agg_disable,
 175         .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
 176         .txq_free_tfd = iwl_hw_txq_free_tfd,
 177         .txq_init = iwl_hw_tx_queue_init,
 178         .rx_handler_setup = iwlagn_rx_handler_setup,
 179         .setup_deferred_work = iwlagn_setup_deferred_work,
 180         .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
 181         .load_ucode = iwlagn_load_ucode,
 182         .dump_nic_event_log = iwl_dump_nic_event_log,
 183         .dump_nic_error_log = iwl_dump_nic_error_log,
 184         .dump_csr = iwl_dump_csr,
 185         .dump_fh = iwl_dump_fh,
 186         .init_alive_start = iwlagn_init_alive_start,
 187         .alive_notify = iwlagn_alive_notify,
 188         .send_tx_power = iwlagn_send_tx_power,
 189         .update_chain_flags = iwl_update_chain_flags,
 190         .apm_ops = {
 191                 .init = iwl_apm_init,
 192                 .stop = iwl_apm_stop,
 193                 .config = iwl1000_nic_config,
 194                 .set_pwr_src = iwl_set_pwr_src,
 195         },
 196         .eeprom_ops = {
 197                 .regulatory_bands = {
 198                         EEPROM_REG_BAND_1_CHANNELS,
 199                         EEPROM_REG_BAND_2_CHANNELS,
 200                         EEPROM_REG_BAND_3_CHANNELS,
 201                         EEPROM_REG_BAND_4_CHANNELS,
 202                         EEPROM_REG_BAND_5_CHANNELS,
 203                         EEPROM_REG_BAND_24_HT40_CHANNELS,
 204                         EEPROM_REG_BAND_52_HT40_CHANNELS
 205                 },
 206                 .verify_signature  = iwlcore_eeprom_verify_signature,
 207                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
 208                 .release_semaphore = iwlcore_eeprom_release_semaphore,
 209                 .calib_version  = iwlagn_eeprom_calib_version,
 210                 .query_addr = iwlagn_eeprom_query_addr,
 211         },
 212         .post_associate = iwl_post_associate,
 213         .isr = iwl_isr_ict,
 214         .config_ap = iwl_config_ap,
 215         .temp_ops = {
 216                 .temperature = iwlagn_temperature,
 217                 .set_ct_kill = iwl1000_set_ct_threshold,
 218          },
 219         .manage_ibss_station = iwlagn_manage_ibss_station,
 220         .update_bcast_station = iwl_update_bcast_station,
 221         .debugfs_ops = {
 222                 .rx_stats_read = iwl_ucode_rx_stats_read,
 223                 .tx_stats_read = iwl_ucode_tx_stats_read,
 224                 .general_stats_read = iwl_ucode_general_stats_read,
 225                 .bt_stats_read = iwl_ucode_bt_stats_read,
 226         },
 227         .recover_from_tx_stall = iwl_bg_monitor_recover,
 228         .check_plcp_health = iwl_good_plcp_health,
 229         .check_ack_health = iwl_good_ack_health,
 230         .txfifo_flush = iwlagn_txfifo_flush,
 231         .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
 232 };
 233
 234 static const struct iwl_ops iwl1000_ops = {
 235         .lib = &iwl1000_lib,
 236         .hcmd = &iwlagn_hcmd,
 237         .utils = &iwlagn_hcmd_utils,
 238         .led = &iwlagn_led_ops,
 239 };
 240
 241 struct iwl_cfg iwl1000_bgn_cfg = {
 242         .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
 243         .fw_name_pre = IWL1000_FW_PRE,
 244         .ucode_api_max = IWL1000_UCODE_API_MAX,
 245         .ucode_api_min = IWL1000_UCODE_API_MIN,
 246         .sku = IWL_SKU_G|IWL_SKU_N,
 247         .ops = &iwl1000_ops,
 248         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 249         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 250         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,
 251         .num_of_queues = IWLAGN_NUM_QUEUES,
 252         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 253         .mod_params = &iwlagn_mod_params,
 254         .valid_tx_ant = ANT_A,
 255         .valid_rx_ant = ANT_AB,
 256         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 257         .set_l0s = true,
 258         .use_bsm = false,
 259         .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 260         .shadow_ram_support = false,
 261         .ht_greenfield_support = true,
 262         .led_compensation = 51,
 263         .use_rts_for_aggregation = true, /* use rts/cts protection */
 264         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 265         .support_ct_kill_exit = true,
 266         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 267         .chain_noise_scale = 1000,
 268         .monitor_recover_period = IWL_MONITORING_PERIOD,
 269         .max_event_log_size = 128,
 270         .ucode_tracing = true,
 271         .sensitivity_calib_by_driver = true,
 272         .chain_noise_calib_by_driver = true,
 273 };
 274
 275 struct iwl_cfg iwl1000_bg_cfg = {
 276         .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
 277         .fw_name_pre = IWL1000_FW_PRE,
 278         .ucode_api_max = IWL1000_UCODE_API_MAX,
 279         .ucode_api_min = IWL1000_UCODE_API_MIN,
 280         .sku = IWL_SKU_G,
 281         .ops = &iwl1000_ops,
 282         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 283         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 284         .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,
 285         .num_of_queues = IWLAGN_NUM_QUEUES,
 286         .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 287         .mod_params = &iwlagn_mod_params,
 288         .valid_tx_ant = ANT_A,
 289         .valid_rx_ant = ANT_AB,
 290         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 291         .set_l0s = true,
 292         .use_bsm = false,
 293         .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 294         .shadow_ram_support = false,
 295         .led_compensation = 51,
 296         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 297         .support_ct_kill_exit = true,
 298         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 299         .chain_noise_scale = 1000,
 300         .monitor_recover_period = IWL_MONITORING_PERIOD,
 301         .max_event_log_size = 128,
 302         .ucode_tracing = true,
 303         .sensitivity_calib_by_driver = true,
 304         .chain_noise_calib_by_driver = true,
 305 };
 306
 307 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));