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-helpers.h"
  46 #include "iwl-5000-hw.h"
  47 #include "iwl-agn-led.h"
  48
  49 /* Highest firmware API version supported */
  50 #define IWL1000_UCODE_API_MAX 3
  51
  52 /* Lowest firmware API version supported */
  53 #define IWL1000_UCODE_API_MIN 1
  54
  55 #define IWL1000_FW_PRE "iwlwifi-1000-"
  56 #define _IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE #api ".ucode"
  57 #define IWL1000_MODULE_FIRMWARE(api) _IWL1000_MODULE_FIRMWARE(api)
  58
  59
  60 /*
  61  * For 1000, use advance thermal throttling critical temperature threshold,
  62  * but legacy thermal management implementation for now.
  63  * This is for the reason of 1000 uCode using advance thermal throttling API
  64  * but not implement ct_kill_exit based on ct_kill exit temperature
  65  * so the thermal throttling will still based on legacy thermal throttling
  66  * management.
  67  * The code here need to be modified once 1000 uCode has the advanced thermal
  68  * throttling algorithm in place
  69  */
  70 static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
  71 {
  72         /* want Celsius */
  73         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
  74         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  75 }
  76
  77 /* NIC configuration for 1000 series */
  78 static void iwl1000_nic_config(struct iwl_priv *priv)
  79 {
  80         /* set CSR_HW_CONFIG_REG for uCode use */
  81         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
  82                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
  83                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
  84
  85         /* Setting digital SVR for 1000 card to 1.32V */
  86         /* locking is acquired in iwl_set_bits_mask_prph() function */
  87         iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
  88                                 APMG_SVR_DIGITAL_VOLTAGE_1_32,
  89                                 ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
  90 }
  91
  92 static struct iwl_sensitivity_ranges iwl1000_sensitivity = {
  93         .min_nrg_cck = 95,
  94         .max_nrg_cck = 0, /* not used, set to 0 */
  95         .auto_corr_min_ofdm = 90,
  96         .auto_corr_min_ofdm_mrc = 170,
  97         .auto_corr_min_ofdm_x1 = 120,
  98         .auto_corr_min_ofdm_mrc_x1 = 240,
  99
 100         .auto_corr_max_ofdm = 120,
 101         .auto_corr_max_ofdm_mrc = 210,
 102         .auto_corr_max_ofdm_x1 = 155,
 103         .auto_corr_max_ofdm_mrc_x1 = 290,
 104
 105         .auto_corr_min_cck = 125,
 106         .auto_corr_max_cck = 200,
 107         .auto_corr_min_cck_mrc = 170,
 108         .auto_corr_max_cck_mrc = 400,
 109         .nrg_th_cck = 95,
 110         .nrg_th_ofdm = 95,
 111
 112         .barker_corr_th_min = 190,
 113         .barker_corr_th_min_mrc = 390,
 114         .nrg_th_cca = 62,
 115 };
 116
 117 static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 118 {
 119         if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
 120             priv->cfg->mod_params->num_of_queues <= IWL50_NUM_QUEUES)
 121                 priv->cfg->num_of_queues =
 122                         priv->cfg->mod_params->num_of_queues;
 123
 124         priv->hw_params.max_txq_num = priv->cfg->num_of_queues;
 125         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
 126         priv->hw_params.scd_bc_tbls_size =
 127                         priv->cfg->num_of_queues *
 128                         sizeof(struct iwl5000_scd_bc_tbl);
 129         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 130         priv->hw_params.max_stations = IWL5000_STATION_COUNT;
 131         priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
 132
 133         priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE;
 134         priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE;
 135
 136         priv->hw_params.max_bsm_size = 0;
 137         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 138                                         BIT(IEEE80211_BAND_5GHZ);
 139         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 140
 141         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 142         priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
 143         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
 144         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 145
 146         if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
 147                 priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
 148
 149         /* Set initial sensitivity parameters */
 150         /* Set initial calibration set */
 151         priv->hw_params.sens = &iwl1000_sensitivity;
 152         priv->hw_params.calib_init_cfg =
 153                         BIT(IWL_CALIB_XTAL)             |
 154                         BIT(IWL_CALIB_LO)               |
 155                         BIT(IWL_CALIB_TX_IQ)            |
 156                         BIT(IWL_CALIB_TX_IQ_PERD)       |
 157                         BIT(IWL_CALIB_BASE_BAND);
 158
 159         return 0;
 160 }
 161
 162 static struct iwl_lib_ops iwl1000_lib = {
 163         .set_hw_params = iwl1000_hw_set_hw_params,
 164         .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
 165         .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
 166         .txq_set_sched = iwl5000_txq_set_sched,
 167         .txq_agg_enable = iwl5000_txq_agg_enable,
 168         .txq_agg_disable = iwl5000_txq_agg_disable,
 169         .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
 170         .txq_free_tfd = iwl_hw_txq_free_tfd,
 171         .txq_init = iwl_hw_tx_queue_init,
 172         .rx_handler_setup = iwl5000_rx_handler_setup,
 173         .setup_deferred_work = iwl5000_setup_deferred_work,
 174         .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
 175         .load_ucode = iwl5000_load_ucode,
 176         .dump_nic_event_log = iwl_dump_nic_event_log,
 177         .dump_nic_error_log = iwl_dump_nic_error_log,
 178         .dump_csr = iwl_dump_csr,
 179         .dump_fh = iwl_dump_fh,
 180         .init_alive_start = iwl5000_init_alive_start,
 181         .alive_notify = iwl5000_alive_notify,
 182         .send_tx_power = iwl5000_send_tx_power,
 183         .update_chain_flags = iwl_update_chain_flags,
 184         .apm_ops = {
 185                 .init = iwl_apm_init,
 186                 .stop = iwl_apm_stop,
 187                 .config = iwl1000_nic_config,
 188                 .set_pwr_src = iwl_set_pwr_src,
 189         },
 190         .eeprom_ops = {
 191                 .regulatory_bands = {
 192                         EEPROM_5000_REG_BAND_1_CHANNELS,
 193                         EEPROM_5000_REG_BAND_2_CHANNELS,
 194                         EEPROM_5000_REG_BAND_3_CHANNELS,
 195                         EEPROM_5000_REG_BAND_4_CHANNELS,
 196                         EEPROM_5000_REG_BAND_5_CHANNELS,
 197                         EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
 198                         EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 199                 },
 200                 .verify_signature  = iwlcore_eeprom_verify_signature,
 201                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
 202                 .release_semaphore = iwlcore_eeprom_release_semaphore,
 203                 .calib_version  = iwl5000_eeprom_calib_version,
 204                 .query_addr = iwl5000_eeprom_query_addr,
 205         },
 206         .post_associate = iwl_post_associate,
 207         .isr = iwl_isr_ict,
 208         .config_ap = iwl_config_ap,
 209         .temp_ops = {
 210                 .temperature = iwl5000_temperature,
 211                 .set_ct_kill = iwl1000_set_ct_threshold,
 212          },
 213         .add_bcast_station = iwl_add_bcast_station,
 214 };
 215
 216 static const struct iwl_ops iwl1000_ops = {
 217         .ucode = &iwl5000_ucode,
 218         .lib = &iwl1000_lib,
 219         .hcmd = &iwl5000_hcmd,
 220         .utils = &iwl5000_hcmd_utils,
 221         .led = &iwlagn_led_ops,
 222 };
 223
 224 struct iwl_cfg iwl1000_bgn_cfg = {
 225         .name = "1000 Series BGN",
 226         .fw_name_pre = IWL1000_FW_PRE,
 227         .ucode_api_max = IWL1000_UCODE_API_MAX,
 228         .ucode_api_min = IWL1000_UCODE_API_MIN,
 229         .sku = IWL_SKU_G|IWL_SKU_N,
 230         .ops = &iwl1000_ops,
 231         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 232         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 233         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 234         .num_of_queues = IWL50_NUM_QUEUES,
 235         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 236         .mod_params = &iwl50_mod_params,
 237         .valid_tx_ant = ANT_A,
 238         .valid_rx_ant = ANT_AB,
 239         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 240         .set_l0s = true,
 241         .use_bsm = false,
 242         .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 243         .shadow_ram_support = false,
 244         .ht_greenfield_support = true,
 245         .led_compensation = 51,
 246         .use_rts_for_ht = true, /* use rts/cts protection */
 247         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 248         .support_ct_kill_exit = true,
 249         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 250         .chain_noise_scale = 1000,
 251 };
 252
 253 struct iwl_cfg iwl1000_bg_cfg = {
 254         .name = "1000 Series BG",
 255         .fw_name_pre = IWL1000_FW_PRE,
 256         .ucode_api_max = IWL1000_UCODE_API_MAX,
 257         .ucode_api_min = IWL1000_UCODE_API_MIN,
 258         .sku = IWL_SKU_G,
 259         .ops = &iwl1000_ops,
 260         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 261         .eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 262         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 263         .num_of_queues = IWL50_NUM_QUEUES,
 264         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 265         .mod_params = &iwl50_mod_params,
 266         .valid_tx_ant = ANT_A,
 267         .valid_rx_ant = ANT_AB,
 268         .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 269         .set_l0s = true,
 270         .use_bsm = false,
 271         .max_ll_items = OTP_MAX_LL_ITEMS_1000,
 272         .shadow_ram_support = false,
 273         .ht_greenfield_support = true,
 274         .led_compensation = 51,
 275         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 276         .support_ct_kill_exit = true,
 277         .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 278         .chain_noise_scale = 1000,
 279 };
 280
 281 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));