SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/net/wireless/iwlwifi/iwl-6000.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2008-2009 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-6000-hw.h"
  48
  49 /* Highest firmware API version supported */
  50 #define IWL6000_UCODE_API_MAX 4
  51 #define IWL6050_UCODE_API_MAX 4
  52
  53 /* Lowest firmware API version supported */
  54 #define IWL6000_UCODE_API_MIN 1
  55 #define IWL6050_UCODE_API_MIN 1
  56
  57 #define IWL6000_FW_PRE "iwlwifi-6000-"
  58 #define _IWL6000_MODULE_FIRMWARE(api) IWL6000_FW_PRE #api ".ucode"
  59 #define IWL6000_MODULE_FIRMWARE(api) _IWL6000_MODULE_FIRMWARE(api)
  60
  61 #define IWL6050_FW_PRE "iwlwifi-6050-"
  62 #define _IWL6050_MODULE_FIRMWARE(api) IWL6050_FW_PRE #api ".ucode"
  63 #define IWL6050_MODULE_FIRMWARE(api) _IWL6050_MODULE_FIRMWARE(api)
  64
  65 static void iwl6000_set_ct_threshold(struct iwl_priv *priv)
  66 {
  67         /* want Celsius */
  68         priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
  69         priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
  70 }
  71
  72 /* NIC configuration for 6000 series */
  73 static void iwl6000_nic_config(struct iwl_priv *priv)
  74 {
  75         u16 radio_cfg;
  76
  77         radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
  78
  79         /* write radio config values to register */
  80         if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) <= EEPROM_RF_CONFIG_TYPE_MAX)
  81                 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
  82                             EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
  83                             EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
  84                             EEPROM_RF_CFG_DASH_MSK(radio_cfg));
  85
  86         /* set CSR_HW_CONFIG_REG for uCode use */
  87         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
  88                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
  89                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
  90
  91         /* no locking required for register write */
  92         if (priv->cfg->pa_type == IWL_PA_HYBRID) {
  93                 /* 2x2 hybrid phy type */
  94                 iwl_write32(priv, CSR_GP_DRIVER_REG,
  95                              CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_HYB);
  96         } else if (priv->cfg->pa_type == IWL_PA_INTERNAL) {
  97                 /* 2x2 IPA phy type */
  98                 iwl_write32(priv, CSR_GP_DRIVER_REG,
  99                              CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA);
 100         }
 101         /* else do nothing, uCode configured */
 102 }
 103
 104 static struct iwl_sensitivity_ranges iwl6000_sensitivity = {
 105         .min_nrg_cck = 97,
 106         .max_nrg_cck = 0, /* not used, set to 0 */
 107         .auto_corr_min_ofdm = 80,
 108         .auto_corr_min_ofdm_mrc = 128,
 109         .auto_corr_min_ofdm_x1 = 105,
 110         .auto_corr_min_ofdm_mrc_x1 = 192,
 111
 112         .auto_corr_max_ofdm = 145,
 113         .auto_corr_max_ofdm_mrc = 232,
 114         .auto_corr_max_ofdm_x1 = 145,
 115         .auto_corr_max_ofdm_mrc_x1 = 232,
 116
 117         .auto_corr_min_cck = 125,
 118         .auto_corr_max_cck = 175,
 119         .auto_corr_min_cck_mrc = 160,
 120         .auto_corr_max_cck_mrc = 310,
 121         .nrg_th_cck = 97,
 122         .nrg_th_ofdm = 100,
 123 };
 124
 125 static int iwl6000_hw_set_hw_params(struct iwl_priv *priv)
 126 {
 127         if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) ||
 128             (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
 129                 IWL_ERR(priv,
 130                         "invalid queues_num, should be between %d and %d\n",
 131                         IWL_MIN_NUM_QUEUES, IWL50_NUM_QUEUES);
 132                 return -EINVAL;
 133         }
 134
 135         priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
 136         priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
 137         priv->hw_params.scd_bc_tbls_size =
 138                         IWL50_NUM_QUEUES * sizeof(struct iwl5000_scd_bc_tbl);
 139         priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 140         priv->hw_params.max_stations = IWL5000_STATION_COUNT;
 141         priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
 142
 143         priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
 144         priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
 145
 146         priv->hw_params.max_bsm_size = 0;
 147         priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 148                                         BIT(IEEE80211_BAND_5GHZ);
 149         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 150
 151         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 152         priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
 153         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
 154         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 155
 156         if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
 157                 priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
 158
 159         /* Set initial sensitivity parameters */
 160         /* Set initial calibration set */
 161         priv->hw_params.sens = &iwl6000_sensitivity;
 162         priv->hw_params.calib_init_cfg =
 163                         BIT(IWL_CALIB_XTAL)             |
 164                         BIT(IWL_CALIB_LO)               |
 165                         BIT(IWL_CALIB_TX_IQ)            |
 166                         BIT(IWL_CALIB_TX_IQ_PERD)       |
 167                         BIT(IWL_CALIB_BASE_BAND);
 168
 169         return 0;
 170 }
 171
 172 static struct iwl_lib_ops iwl6000_lib = {
 173         .set_hw_params = iwl6000_hw_set_hw_params,
 174         .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
 175         .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
 176         .txq_set_sched = iwl5000_txq_set_sched,
 177         .txq_agg_enable = iwl5000_txq_agg_enable,
 178         .txq_agg_disable = iwl5000_txq_agg_disable,
 179         .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
 180         .txq_free_tfd = iwl_hw_txq_free_tfd,
 181         .txq_init = iwl_hw_tx_queue_init,
 182         .rx_handler_setup = iwl5000_rx_handler_setup,
 183         .setup_deferred_work = iwl5000_setup_deferred_work,
 184         .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
 185         .load_ucode = iwl5000_load_ucode,
 186         .dump_nic_event_log = iwl_dump_nic_event_log,
 187         .dump_nic_error_log = iwl_dump_nic_error_log,
 188         .init_alive_start = iwl5000_init_alive_start,
 189         .alive_notify = iwl5000_alive_notify,
 190         .send_tx_power = iwl5000_send_tx_power,
 191         .update_chain_flags = iwl_update_chain_flags,
 192         .apm_ops = {
 193                 .init = iwl5000_apm_init,
 194                 .reset = iwl5000_apm_reset,
 195                 .stop = iwl5000_apm_stop,
 196                 .config = iwl6000_nic_config,
 197                 .set_pwr_src = iwl_set_pwr_src,
 198         },
 199         .eeprom_ops = {
 200                 .regulatory_bands = {
 201                         EEPROM_5000_REG_BAND_1_CHANNELS,
 202                         EEPROM_5000_REG_BAND_2_CHANNELS,
 203                         EEPROM_5000_REG_BAND_3_CHANNELS,
 204                         EEPROM_5000_REG_BAND_4_CHANNELS,
 205                         EEPROM_5000_REG_BAND_5_CHANNELS,
 206                         EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
 207                         EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 208                 },
 209                 .verify_signature  = iwlcore_eeprom_verify_signature,
 210                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
 211                 .release_semaphore = iwlcore_eeprom_release_semaphore,
 212                 .calib_version  = iwl5000_eeprom_calib_version,
 213                 .query_addr = iwl5000_eeprom_query_addr,
 214                 .update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
 215         },
 216         .post_associate = iwl_post_associate,
 217         .isr = iwl_isr_ict,
 218         .config_ap = iwl_config_ap,
 219         .temp_ops = {
 220                 .temperature = iwl5000_temperature,
 221                 .set_ct_kill = iwl6000_set_ct_threshold,
 222          },
 223 };
 224
 225 static struct iwl_hcmd_utils_ops iwl6000_hcmd_utils = {
 226         .get_hcmd_size = iwl5000_get_hcmd_size,
 227         .build_addsta_hcmd = iwl5000_build_addsta_hcmd,
 228         .rts_tx_cmd_flag = iwl5000_rts_tx_cmd_flag,
 229         .calc_rssi = iwl5000_calc_rssi,
 230 };
 231
 232 static struct iwl_ops iwl6000_ops = {
 233         .ucode = &iwl5000_ucode,
 234         .lib = &iwl6000_lib,
 235         .hcmd = &iwl5000_hcmd,
 236         .utils = &iwl6000_hcmd_utils,
 237 };
 238
 239
 240 /*
 241  * "h": Hybrid configuration, use both internal and external Power Amplifier
 242  */
 243 struct iwl_cfg iwl6000h_2agn_cfg = {
 244         .name = "6000 Series 2x2 AGN",
 245         .fw_name_pre = IWL6000_FW_PRE,
 246         .ucode_api_max = IWL6000_UCODE_API_MAX,
 247         .ucode_api_min = IWL6000_UCODE_API_MIN,
 248         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 249         .ops = &iwl6000_ops,
 250         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 251         .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 252         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 253         .mod_params = &iwl50_mod_params,
 254         .valid_tx_ant = ANT_AB,
 255         .valid_rx_ant = ANT_AB,
 256         .need_pll_cfg = false,
 257         .pa_type = IWL_PA_HYBRID,
 258         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 259         .shadow_ram_support = true,
 260         .ht_greenfield_support = true,
 261         .led_compensation = 51,
 262         .use_rts_for_ht = true, /* use rts/cts protection */
 263 };
 264
 265 /*
 266  * "i": Internal configuration, use internal Power Amplifier
 267  */
 268 struct iwl_cfg iwl6000i_2agn_cfg = {
 269         .name = "6000 Series 2x2 AGN",
 270         .fw_name_pre = IWL6000_FW_PRE,
 271         .ucode_api_max = IWL6000_UCODE_API_MAX,
 272         .ucode_api_min = IWL6000_UCODE_API_MIN,
 273         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 274         .ops = &iwl6000_ops,
 275         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 276         .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 277         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 278         .mod_params = &iwl50_mod_params,
 279         .valid_tx_ant = ANT_BC,
 280         .valid_rx_ant = ANT_BC,
 281         .need_pll_cfg = false,
 282         .pa_type = IWL_PA_INTERNAL,
 283         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 284         .shadow_ram_support = true,
 285         .ht_greenfield_support = true,
 286         .led_compensation = 51,
 287         .use_rts_for_ht = true, /* use rts/cts protection */
 288 };
 289
 290 struct iwl_cfg iwl6050_2agn_cfg = {
 291         .name = "6050 Series 2x2 AGN",
 292         .fw_name_pre = IWL6050_FW_PRE,
 293         .ucode_api_max = IWL6050_UCODE_API_MAX,
 294         .ucode_api_min = IWL6050_UCODE_API_MIN,
 295         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 296         .ops = &iwl6000_ops,
 297         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 298         .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 299         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 300         .mod_params = &iwl50_mod_params,
 301         .valid_tx_ant = ANT_AB,
 302         .valid_rx_ant = ANT_AB,
 303         .need_pll_cfg = false,
 304         .pa_type = IWL_PA_SYSTEM,
 305         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 306         .shadow_ram_support = true,
 307         .ht_greenfield_support = true,
 308         .led_compensation = 51,
 309         .use_rts_for_ht = true, /* use rts/cts protection */
 310 };
 311
 312 struct iwl_cfg iwl6000_3agn_cfg = {
 313         .name = "6000 Series 3x3 AGN",
 314         .fw_name_pre = IWL6000_FW_PRE,
 315         .ucode_api_max = IWL6000_UCODE_API_MAX,
 316         .ucode_api_min = IWL6000_UCODE_API_MIN,
 317         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 318         .ops = &iwl6000_ops,
 319         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 320         .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 321         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 322         .mod_params = &iwl50_mod_params,
 323         .valid_tx_ant = ANT_ABC,
 324         .valid_rx_ant = ANT_ABC,
 325         .need_pll_cfg = false,
 326         .pa_type = IWL_PA_SYSTEM,
 327         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 328         .shadow_ram_support = true,
 329         .ht_greenfield_support = true,
 330         .led_compensation = 51,
 331         .use_rts_for_ht = true, /* use rts/cts protection */
 332 };
 333
 334 struct iwl_cfg iwl6050_3agn_cfg = {
 335         .name = "6050 Series 3x3 AGN",
 336         .fw_name_pre = IWL6050_FW_PRE,
 337         .ucode_api_max = IWL6050_UCODE_API_MAX,
 338         .ucode_api_min = IWL6050_UCODE_API_MIN,
 339         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 340         .ops = &iwl6000_ops,
 341         .eeprom_size = OTP_LOW_IMAGE_SIZE,
 342         .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 343         .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 344         .mod_params = &iwl50_mod_params,
 345         .valid_tx_ant = ANT_ABC,
 346         .valid_rx_ant = ANT_ABC,
 347         .need_pll_cfg = false,
 348         .pa_type = IWL_PA_SYSTEM,
 349         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 350         .shadow_ram_support = true,
 351         .ht_greenfield_support = true,
 352         .led_compensation = 51,
 353         .use_rts_for_ht = true, /* use rts/cts protection */
 354 };
 355
 356 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));
 357 MODULE_FIRMWARE(IWL6050_MODULE_FIRMWARE(IWL6050_UCODE_API_MAX));