linux/drivers/net/wireless/iwlwifi/iwl-1000.c
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   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#define IWL100_UCODE_API_MAX 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 #api ".ucode"
  61#define IWL1000_MODULE_FIRMWARE(api) _IWL1000_MODULE_FIRMWARE(api)
  62
  63#define IWL100_FW_PRE "iwlwifi-100-"
  64#define _IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE #api ".ucode"
  65#define IWL100_MODULE_FIRMWARE(api) _IWL100_MODULE_FIRMWARE(api)
  66
  67
  68/*
  69 * For 1000, use advance thermal throttling critical temperature threshold,
  70 * but legacy thermal management implementation for now.
  71 * This is for the reason of 1000 uCode using advance thermal throttling API
  72 * but not implement ct_kill_exit based on ct_kill exit temperature
  73 * so the thermal throttling will still based on legacy thermal throttling
  74 * management.
  75 * The code here need to be modified once 1000 uCode has the advanced thermal
  76 * throttling algorithm in place
  77 */
  78static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
  79{
  80        /* want Celsius */
  81        priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
  82        priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  83}
  84
  85/* NIC configuration for 1000 series */
  86static void iwl1000_nic_config(struct iwl_priv *priv)
  87{
  88        /* set CSR_HW_CONFIG_REG for uCode use */
  89        iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
  90                    CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
  91                    CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
  92
  93        /* Setting digital SVR for 1000 card to 1.32V */
  94        /* locking is acquired in iwl_set_bits_mask_prph() function */
  95        iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
  96                                APMG_SVR_DIGITAL_VOLTAGE_1_32,
  97                                ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
  98}
  99
 100static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
 101        .min_nrg_cck = 95,
 102        .max_nrg_cck = 0, /* not used, set to 0 */
 103        .auto_corr_min_ofdm = 90,
 104        .auto_corr_min_ofdm_mrc = 170,
 105        .auto_corr_min_ofdm_x1 = 120,
 106        .auto_corr_min_ofdm_mrc_x1 = 240,
 107
 108        .auto_corr_max_ofdm = 120,
 109        .auto_corr_max_ofdm_mrc = 210,
 110        .auto_corr_max_ofdm_x1 = 155,
 111        .auto_corr_max_ofdm_mrc_x1 = 290,
 112
 113        .auto_corr_min_cck = 125,
 114        .auto_corr_max_cck = 200,
 115        .auto_corr_min_cck_mrc = 170,
 116        .auto_corr_max_cck_mrc = 400,
 117        .nrg_th_cck = 95,
 118        .nrg_th_ofdm = 95,
 119
 120        .barker_corr_th_min = 190,
 121        .barker_corr_th_min_mrc = 390,
 122        .nrg_th_cca = 62,
 123};
 124
 125static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 126{
 127        if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
 128            priv->cfg->mod_params->num_of_queues <= IWLAGN_NUM_QUEUES)
 129                priv->cfg->base_params->num_of_queues =
 130                        priv->cfg->mod_params->num_of_queues;
 131
 132        priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
 133        priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
 134        priv->hw_params.scd_bc_tbls_size =
 135                        priv->cfg->base_params->num_of_queues *
 136                        sizeof(struct iwlagn_scd_bc_tbl);
 137        priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 138        priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
 139        priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
 140
 141        priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
 142        priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
 143
 144        priv->hw_params.max_bsm_size = 0;
 145        priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 146                                        BIT(IEEE80211_BAND_5GHZ);
 147        priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 148
 149        priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 150        if (priv->cfg->rx_with_siso_diversity)
 151                priv->hw_params.rx_chains_num = 1;
 152        else
 153                priv->hw_params.rx_chains_num =
 154                        num_of_ant(priv->cfg->valid_rx_ant);
 155        priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
 156        priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 157
 158        iwl1000_set_ct_threshold(priv);
 159
 160        /* Set initial sensitivity parameters */
 161        /* Set initial calibration set */
 162        priv->hw_params.sens = &iwl1000_sensitivity;
 163        priv->hw_params.calib_init_cfg =
 164                        BIT(IWL_CALIB_XTAL)             |
 165                        BIT(IWL_CALIB_LO)               |
 166                        BIT(IWL_CALIB_TX_IQ)            |
 167                        BIT(IWL_CALIB_TX_IQ_PERD)       |
 168                        BIT(IWL_CALIB_BASE_BAND);
 169        if (priv->cfg->need_dc_calib)
 170                priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_DC);
 171
 172        priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
 173
 174        return 0;
 175}
 176
 177static struct iwl_lib_ops iwl1000_lib = {
 178        .set_hw_params = iwl1000_hw_set_hw_params,
 179        .txq_update_byte_cnt_tbl = iwlagn_txq_update_byte_cnt_tbl,
 180        .txq_inval_byte_cnt_tbl = iwlagn_txq_inval_byte_cnt_tbl,
 181        .txq_set_sched = iwlagn_txq_set_sched,
 182        .txq_agg_enable = iwlagn_txq_agg_enable,
 183        .txq_agg_disable = iwlagn_txq_agg_disable,
 184        .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
 185        .txq_free_tfd = iwl_hw_txq_free_tfd,
 186        .txq_init = iwl_hw_tx_queue_init,
 187        .rx_handler_setup = iwlagn_rx_handler_setup,
 188        .setup_deferred_work = iwlagn_setup_deferred_work,
 189        .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
 190        .load_ucode = iwlagn_load_ucode,
 191        .dump_nic_event_log = iwl_dump_nic_event_log,
 192        .dump_nic_error_log = iwl_dump_nic_error_log,
 193        .dump_csr = iwl_dump_csr,
 194        .dump_fh = iwl_dump_fh,
 195        .init_alive_start = iwlagn_init_alive_start,
 196        .alive_notify = iwlagn_alive_notify,
 197        .send_tx_power = iwlagn_send_tx_power,
 198        .update_chain_flags = iwl_update_chain_flags,
 199        .apm_ops = {
 200                .init = iwl_apm_init,
 201                .config = iwl1000_nic_config,
 202        },
 203        .eeprom_ops = {
 204                .regulatory_bands = {
 205                        EEPROM_REG_BAND_1_CHANNELS,
 206                        EEPROM_REG_BAND_2_CHANNELS,
 207                        EEPROM_REG_BAND_3_CHANNELS,
 208                        EEPROM_REG_BAND_4_CHANNELS,
 209                        EEPROM_REG_BAND_5_CHANNELS,
 210                        EEPROM_REG_BAND_24_HT40_CHANNELS,
 211                        EEPROM_REG_BAND_52_HT40_CHANNELS
 212                },
 213                .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
 214                .release_semaphore = iwlcore_eeprom_release_semaphore,
 215                .calib_version  = iwlagn_eeprom_calib_version,
 216                .query_addr = iwlagn_eeprom_query_addr,
 217        },
 218        .isr_ops = {
 219                .isr = iwl_isr_ict,
 220                .free = iwl_free_isr_ict,
 221                .alloc = iwl_alloc_isr_ict,
 222                .reset = iwl_reset_ict,
 223                .disable = iwl_disable_ict,
 224        },
 225        .temp_ops = {
 226                .temperature = iwlagn_temperature,
 227         },
 228        .debugfs_ops = {
 229                .rx_stats_read = iwl_ucode_rx_stats_read,
 230                .tx_stats_read = iwl_ucode_tx_stats_read,
 231                .general_stats_read = iwl_ucode_general_stats_read,
 232                .bt_stats_read = iwl_ucode_bt_stats_read,
 233                .reply_tx_error = iwl_reply_tx_error_read,
 234        },
 235        .check_plcp_health = iwl_good_plcp_health,
 236        .check_ack_health = iwl_good_ack_health,
 237        .txfifo_flush = iwlagn_txfifo_flush,
 238        .dev_txfifo_flush = iwlagn_dev_txfifo_flush,
 239        .tt_ops = {
 240                .lower_power_detection = iwl_tt_is_low_power_state,
 241                .tt_power_mode = iwl_tt_current_power_mode,
 242                .ct_kill_check = iwl_check_for_ct_kill,
 243        }
 244};
 245
 246static const struct iwl_ops iwl1000_ops = {
 247        .lib = &iwl1000_lib,
 248        .hcmd = &iwlagn_hcmd,
 249        .utils = &iwlagn_hcmd_utils,
 250        .led = &iwlagn_led_ops,
 251        .ieee80211_ops = &iwlagn_hw_ops,
 252};
 253
 254static struct iwl_base_params iwl1000_base_params = {
 255        .num_of_queues = IWLAGN_NUM_QUEUES,
 256        .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
 257        .eeprom_size = OTP_LOW_IMAGE_SIZE,
 258        .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 259        .set_l0s = true,
 260        .use_bsm = false,
 261        .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 262        .shadow_ram_support = false,
 263        .led_compensation = 51,
 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        .wd_timeout = IWL_DEF_WD_TIMEOUT,
 269        .max_event_log_size = 128,
 270        .ucode_tracing = true,
 271        .sensitivity_calib_by_driver = true,
 272        .chain_noise_calib_by_driver = true,
 273};
 274static struct iwl_ht_params iwl1000_ht_params = {
 275        .ht_greenfield_support = true,
 276        .use_rts_for_aggregation = true, /* use rts/cts protection */
 277};
 278
 279#define IWL_DEVICE_1000                                         \
 280        .fw_name_pre = IWL1000_FW_PRE,                          \
 281        .ucode_api_max = IWL1000_UCODE_API_MAX,                 \
 282        .ucode_api_min = IWL1000_UCODE_API_MIN,                 \
 283        .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 284        .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 285        .ops = &iwl1000_ops,                                    \
 286        .mod_params = &iwlagn_mod_params,                       \
 287        .base_params = &iwl1000_base_params,                    \
 288        .led_mode = IWL_LED_BLINK
 289
 290struct iwl_cfg iwl1000_bgn_cfg = {
 291        .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
 292        IWL_DEVICE_1000,
 293        .ht_params = &iwl1000_ht_params,
 294};
 295
 296struct iwl_cfg iwl1000_bg_cfg = {
 297        .name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
 298        IWL_DEVICE_1000,
 299};
 300
 301#define IWL_DEVICE_100                                          \
 302        .fw_name_pre = IWL100_FW_PRE,                           \
 303        .ucode_api_max = IWL100_UCODE_API_MAX,                  \
 304        .ucode_api_min = IWL100_UCODE_API_MIN,                  \
 305        .eeprom_ver = EEPROM_1000_EEPROM_VERSION,               \
 306        .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,       \
 307        .ops = &iwl1000_ops,                                    \
 308        .mod_params = &iwlagn_mod_params,                       \
 309        .base_params = &iwl1000_base_params,                    \
 310        .led_mode = IWL_LED_RF_STATE,                           \
 311        .rx_with_siso_diversity = true
 312
 313struct iwl_cfg iwl100_bgn_cfg = {
 314        .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
 315        IWL_DEVICE_100,
 316        .ht_params = &iwl1000_ht_params,
 317};
 318
 319struct iwl_cfg iwl100_bg_cfg = {
 320        .name = "Intel(R) Centrino(R) Wireless-N 100 BG",
 321        IWL_DEVICE_100,
 322};
 323
 324MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
 325MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX));
 326