/******************************************************************************
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <asm/unaligned.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-sta.h"
#include "iwl-agn.h"
#include "iwl-helpers.h"
#include "iwl-agn-hw.h"
#include "iwl-6000-hw.h"
/* Highest firmware API version supported */
#define IWL2030_UCODE_API_MAX 5
#define IWL2000_UCODE_API_MAX 5
#define IWL105_UCODE_API_MAX 5
/* Lowest firmware API version supported */
#define IWL2030_UCODE_API_MIN 5
#define IWL2000_UCODE_API_MIN 5
#define IWL105_UCODE_API_MIN 5
#define IWL2030_FW_PRE "iwlwifi-2030-"
#define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE #api ".ucode"
#define IWL2000_FW_PRE "iwlwifi-2000-"
#define IWL2000_MODULE_FIRMWARE(api) IWL2000_FW_PRE #api ".ucode"
#define IWL105_FW_PRE "iwlwifi-105-"
#define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE #api ".ucode"
static void iwl2000_set_ct_threshold(struct iwl_priv *priv)
{
/* want Celsius */
priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
}
/* NIC configuration for 2000 series */
static void iwl2000_nic_config(struct iwl_priv *priv)
{
u16 radio_cfg;
radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
/* write radio config values to register */
if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) <= EEPROM_RF_CONFIG_TYPE_MAX)
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
EEPROM_RF_CFG_DASH_MSK(radio_cfg));
/* set CSR_HW_CONFIG_REG for uCode use */
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
if (priv->cfg->iq_invert)
iwl_set_bit(priv, CSR_GP_DRIVER_REG,
CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER);
if (priv->cfg->disable_otp_refresh)
iwl_write_prph(priv, APMG_ANALOG_SVR_REG, 0x80000010);
}
static struct iwl_sensitivity_ranges iwl2000_sensitivity = {
.min_nrg_cck = 97,
.max_nrg_cck = 0, /* not used, set to 0 */
.auto_corr_min_ofdm = 80,
.auto_corr_min_ofdm_mrc = 128,
.auto_corr_min_ofdm_x1 = 105,
.auto_corr_min_ofdm_mrc_x1 = 192,
.auto_corr_max_ofdm = 145,
.auto_corr_max_ofdm_mrc = 232,
.auto_corr_max_ofdm_x1 = 110,
.auto_corr_max_ofdm_mrc_x1 = 232,
.auto_corr_min_cck = 125,
.auto_corr_max_cck = 175,
.auto_corr_min_cck_mrc = 160,
.auto_corr_max_cck_mrc = 310,
.nrg_th_cck = 97,
.nrg_th_ofdm = 100,
.barker_corr_th_min = 190,
.barker_corr_th_min_mrc = 390,
.nrg_th_cca = 62,
};
static int iwl2000_hw_set_hw_params(struct iwl_priv *priv)
{
if (iwlagn_mod_params.num_of_queues >= IWL_MIN_NUM_QUEUES &&
iwlagn_mod_params.num_of_queues <= IWLAGN_NUM_QUEUES)
priv->cfg->base_params->num_of_queues =
iwlagn_mod_params.num_of_queues;
priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
priv->hw_params.scd_bc_tbls_size =
priv->cfg->base_params->num_of_queues *
sizeof(struct iwlagn_scd_bc_tbl);
priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
priv->hw_params.max_stations = IWLAGN_STATION_COUNT;
priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
BIT(IEEE80211_BAND_5GHZ);
priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
if (priv->cfg->rx_with_siso_diversity)
priv->hw_params.rx_chains_num = 1;
else
priv->hw_params.rx_chains_num =
num_of_ant(priv->cfg->valid_rx_ant);
priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
iwl2000_set_ct_threshold(priv);
/* Set initial sensitivity parameters */
/* Set initial calibration set */
priv->hw_params.sens = &iwl2000_sensitivity;
priv->hw_params.calib_init_cfg =
BIT(IWL_CALIB_XTAL) |
BIT(IWL_CALIB_LO) |
BIT(IWL_CALIB_TX_IQ) |
BIT(IWL_CALIB_BASE_BAND);
if (priv->cfg->need_dc_calib)
priv->hw_params.calib_rt_cfg |= BIT(IWL_CALIB_CFG_DC_IDX);
if (priv->cfg->need_temp_offset_calib)
priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_TEMP_OFFSET);
priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
return 0;
}
static int iwl2030_hw_channel_switch(struct iwl_priv *priv,
struct ieee80211_channel_switch *ch_switch)
{
/*
* MULTI-FIXME
* See iwl_mac_channel_switch.
*/
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
struct iwl6000_channel_switch_cmd cmd;
const struct iwl_channel_info *ch_info;
u32 switch_time_in_usec, ucode_switch_time;
u16 ch;
u32 tsf_low;
u8 switch_count;
u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval);
struct ieee80211_vif *vif = ctx->vif;
struct iwl_host_cmd hcmd = {
.id = REPLY_CHANNEL_SWITCH,
.len = sizeof(cmd),
.flags = CMD_SYNC,
.data = &cmd,
};
cmd.band = priv->band == IEEE80211_BAND_2GHZ;
ch = ch_switch->channel->hw_value;
IWL_DEBUG_11H(priv, "channel switch from %u to %u\n",
ctx->active.channel, ch);
cmd.channel = cpu_to_le16(ch);
cmd.rxon_flags = ctx->staging.flags;
cmd.rxon_filter_flags = ctx->staging.filter_flags;
switch_count = ch_switch->count;
tsf_low = ch_switch->timestamp & 0x0ffffffff;
/*
* calculate the ucode channel switch time
* adding TSF as one of the factor for when to switch
*/
if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) {
if (switch_count > ((priv->ucode_beacon_time - tsf_low) /
beacon_interval)) {
switch_count -= (priv->ucode_beacon_time -
tsf_low) / beacon_interval;
} else
switch_count = 0;
}
if (switch_count <= 1)
cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
else {
switch_time_in_usec =
vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
ucode_switch_time = iwl_usecs_to_beacons(priv,
switch_time_in_usec,
beacon_interval);
cmd.switch_time = iwl_add_beacon_time(priv,
priv->ucode_beacon_time,
ucode_switch_time,
beacon_interval);
}
IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
cmd.switch_time);
ch_info = iwl_get_channel_info(priv, priv->band, ch);
if (ch_info)
cmd.expect_beacon = is_channel_radar(ch_info);
else {
IWL_ERR(priv, "invalid channel switch from %u to %u\n",
ctx->active.channel, ch);
return -EFAULT;
}
priv->switch_rxon.channel = cmd.channel;
priv->switch_rxon.switch_in_progress = true;
return iwl_send_cmd_sync(priv, &hcmd);
}
static struct iwl_lib_ops iwl2000_lib = {
.set_hw_params = iwl2000_hw_set_hw_params,
.txq_set_sched = iwlagn_txq_set_sched,
.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
.txq_free_tfd = iwl_hw_txq_free_tfd,
.txq_init = iwl_hw_tx_queue_init,
.rx_handler_setup = iwlagn_rx_handler_setup,
.setup_deferred_work = iwlagn_bt_setup_deferred_work,
.cancel_deferred_work = iwlagn_bt_cancel_deferred_work,
.is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
.send_tx_power = iwlagn_send_tx_power,
.update_chain_flags = iwl_update_chain_flags,
.set_channel_switch = iwl2030_hw_channel_switch,
.apm_ops = {
.init = iwl_apm_init,
.config = iwl2000_nic_config,
},
.eeprom_ops = {
.regulatory_bands = {
EEPROM_REG_BAND_1_CHANNELS,
EEPROM_REG_BAND_2_CHANNELS,
EEPROM_REG_BAND_3_CHANNELS,
EEPROM_REG_BAND_4_CHANNELS,
EEPROM_REG_BAND_5_CHANNELS,
EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
EEPROM_REGULATORY_BAND_NO_HT40,
},
.query_addr = iwlagn_eeprom_query_addr,
.update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
},
.temp_ops = {
.temperature = iwlagn_temperature,
},
.txfifo_flush = iwlagn_txfifo_flush,
.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
};
static const struct iwl_ops iwl2000_ops = {
.lib = &iwl2000_lib,
.hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl2030_ops = {
.lib = &iwl2000_lib,
.hcmd = &iwlagn_bt_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl105_ops = {
.lib = &iwl2000_lib,
.hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl135_ops = {
.lib = &iwl2000_lib,
.hcmd = &iwlagn_bt_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static struct iwl_base_params iwl2000_base_params = {
.eeprom_size = OTP_LOW_IMAGE_SIZE,
.num_of_queues = IWLAGN_NUM_QUEUES,
.num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
.pll_cfg_val = 0,
.max_ll_items = OTP_MAX_LL_ITEMS_2x00,
.shadow_ram_support = true,
.led_compensation = 51,
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.adv_thermal_throttle = true,
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 512,
.shadow_reg_enable = true,
};
static struct iwl_base_params iwl2030_base_params = {
.eeprom_size = OTP_LOW_IMAGE_SIZE,
.num_of_queues = IWLAGN_NUM_QUEUES,
.num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES,
.pll_cfg_val = 0,
.max_ll_items = OTP_MAX_LL_ITEMS_2x00,
.shadow_ram_support = true,
.led_compensation = 57,
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.adv_thermal_throttle = true,
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.wd_timeout = IWL_LONG_WD_TIMEOUT,
.max_event_log_size = 512,
.shadow_reg_enable = true,
};
static struct iwl_ht_params iwl2000_ht_params = {
.ht_greenfield_support = true,
.use_rts_for_aggregation = true, /* use rts/cts protection */
};
static struct iwl_bt_params iwl2030_bt_params = {
/* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
.advanced_bt_coexist = true,
.agg_time_limit = BT_AGG_THRESHOLD_DEF,
.bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
.bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
.bt_sco_disable = true,
.bt_session_2 = true,
};
#define IWL_DEVICE_2000 \
.fw_name_pre = IWL2000_FW_PRE, \
.ucode_api_max = IWL2000_UCODE_API_MAX, \
.ucode_api_min = IWL2000_UCODE_API_MIN, \
.eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
.eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
.ops = &iwl2000_ops, \
.base_params = &iwl2000_base_params, \
.need_dc_calib = true, \
.need_temp_offset_calib = true, \
.led_mode = IWL_LED_RF_STATE, \
.iq_invert = true, \
.disable_otp_refresh = true \
struct iwl_cfg iwl2000_2bgn_cfg = {
.name = "2000 Series 2x2 BGN",
IWL_DEVICE_2000,
.ht_params = &iwl2000_ht_params,
};
struct iwl_cfg iwl2000_2bg_cfg = {
.name = "2000 Series 2x2 BG",
IWL_DEVICE_2000,
};
#define IWL_DEVICE_2030 \
.fw_name_pre = IWL2030_FW_PRE, \
.ucode_api_max = IWL2030_UCODE_API_MAX, \
.ucode_api_min = IWL2030_UCODE_API_MIN, \
.eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
.eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
.ops = &iwl2030_ops, \
.base_params = &iwl2030_base_params, \
.bt_params = &iwl2030_bt_params, \
.need_dc_calib = true, \
.need_temp_offset_calib = true, \
.led_mode = IWL_LED_RF_STATE, \
.adv_pm = true, \
.iq_invert = true \
struct iwl_cfg iwl2030_2bgn_cfg = {
.name = "2000 Series 2x2 BGN/BT",
IWL_DEVICE_2030,
.ht_params = &iwl2000_ht_params,
};
struct iwl_cfg iwl2030_2bg_cfg = {
.name = "2000 Series 2x2 BG/BT",
IWL_DEVICE_2030,
};
#define IWL_DEVICE_105 \
.fw_name_pre = IWL105_FW_PRE, \
.ucode_api_max = IWL105_UCODE_API_MAX, \
.ucode_api_min = IWL105_UCODE_API_MIN, \
.eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
.eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
.ops = &iwl105_ops, \
.base_params = &iwl2000_base_params, \
.need_dc_calib = true, \
.need_temp_offset_calib = true, \
.led_mode = IWL_LED_RF_STATE, \
.adv_pm = true, \
.rx_with_siso_diversity = true \
struct iwl_cfg iwl105_bg_cfg = {
.name = "105 Series 1x1 BG",
IWL_DEVICE_105,
};
struct iwl_cfg iwl105_bgn_cfg = {
.name = "105 Series 1x1 BGN",
IWL_DEVICE_105,
.ht_params = &iwl2000_ht_params,
};
#define IWL_DEVICE_135 \
.fw_name_pre = IWL105_FW_PRE, \
.ucode_api_max = IWL105_UCODE_API_MAX, \
.ucode_api_min = IWL105_UCODE_API_MIN, \
.eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
.eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
.ops = &iwl135_ops, \
.base_params = &iwl2030_base_params, \
.bt_params = &iwl2030_bt_params, \
.need_dc_calib = true, \
.need_temp_offset_calib = true, \
.led_mode = IWL_LED_RF_STATE, \
.adv_pm = true, \
.rx_with_siso_diversity = true \
struct iwl_cfg iwl135_bg_cfg = {
.name = "105 Series 1x1 BG/BT",
IWL_DEVICE_135,
};
struct iwl_cfg iwl135_bgn_cfg = {
.name = "105 Series 1x1 BGN/BT",
IWL_DEVICE_135,
.ht_params = &iwl2000_ht_params,
};
MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX));
MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX));
MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX));
