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iwlwifi: Temperature sensor voltage reading for 5150 

The temperature measurement by uCode for 5150 and 5000 are different
        CSR_HW_REV_TYPE_5150: temperature sensor output voltage
        CSR_HW_REV_TYPE_5000: temperature in Celsius
temperature related operation for 5150 is measured by temperature sensor
output voltage; additional conversion is required for set and store
the temperature.

To make sure support different HW design; implement _ops method for
temperature related functions (temperature reading and set ct kill
threshold)

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2009-05-21 13:44:23 -07:00 committed by John W. Linville
parent 2681b20ba2
commit 62161aefa4
5 changed files with 131 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/net/wireless/iwlwifi/iwl-4965.c
View File

@ -788,6 +788,12 @@ static struct iwl_sensitivity_ranges iwl4965_sensitivity = {
.nrg_th_ofdm = 100,
};
static void iwl4965_set_ct_threshold(struct iwl_priv *priv)
{
/* want Kelvin */
priv->hw_params.ct_kill_threshold = CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
}
/**
* iwl4965_hw_set_hw_params
*
@ -822,7 +828,8 @@ static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
priv->hw_params.rx_chains_num = 2;
priv->hw_params.valid_tx_ant = ANT_A | ANT_B;
priv->hw_params.valid_rx_ant = ANT_A | ANT_B;
priv->hw_params.ct_kill_threshold = CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
priv->hw_params.sens = &iwl4965_sensitivity;
@ -2331,9 +2338,12 @@ static struct iwl_lib_ops iwl4965_lib = {
},
.send_tx_power = iwl4965_send_tx_power,
.update_chain_flags = iwl_update_chain_flags,
.temperature = iwl4965_temperature_calib,
.post_associate = iwl_post_associate,
.config_ap = iwl_config_ap,
.temp_ops = {
.temperature = iwl4965_temperature_calib,
.set_ct_kill = iwl4965_set_ct_threshold,
},
};
static struct iwl_ops iwl4965_ops = {

12
drivers/net/wireless/iwlwifi/iwl-5000-hw.h
View File

@ -87,6 +87,18 @@
#define IWL50_NUM_AMPDU_QUEUES 10
#define IWL50_FIRST_AMPDU_QUEUE 10
/* 5150 only */
#define IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF (-5)
static inline s32 iwl_temp_calib_to_offset(struct iwl_priv *priv)
{
u16 *temp_calib = (u16 *)iwl_eeprom_query_addr(priv,
EEPROM_5000_TEMPERATURE);
/* offset = temperature - voltage / coef */
s32 offset = (s32)(temp_calib[0] - temp_calib[1] / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF);
return offset;
}
/* Fixed (non-configurable) rx data from phy */
/**

108
drivers/net/wireless/iwlwifi/iwl-5000.c
View File

@ -434,15 +434,19 @@ static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
return &priv->eeprom[address];
}
static s32 iwl5150_get_ct_threshold(struct iwl_priv *priv)
static void iwl5150_set_ct_threshold(struct iwl_priv *priv)
{
const s32 volt2temp_coef = -5;
u16 *temp_calib = (u16 *)iwl_eeprom_query_addr(priv,
EEPROM_5000_TEMPERATURE);
/* offset = temperate - voltage / coef */
s32 offset = temp_calib[0] - temp_calib[1] / volt2temp_coef;
s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD) - offset;
return threshold * volt2temp_coef;
const s32 volt2temp_coef = IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF;
s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD) -
iwl_temp_calib_to_offset(priv);
priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef;
}
static void iwl5000_set_ct_threshold(struct iwl_priv *priv)
{
/* want Celsius */
priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
}
/*
@ -868,17 +872,8 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
case CSR_HW_REV_TYPE_5150:
/* 5150 wants in Kelvin */
priv->hw_params.ct_kill_threshold =
iwl5150_get_ct_threshold(priv);
break;
default:
/* all others want Celsius */
priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
break;
}
if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
/* Set initial calibration set */
switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
@ -900,7 +895,6 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
break;
}
return 0;
}
@ -1434,6 +1428,17 @@ static void iwl5000_temperature(struct iwl_priv *priv)
priv->temperature = le32_to_cpu(priv->statistics.general.temperature);
}
static void iwl5150_temperature(struct iwl_priv *priv)
{
u32 vt = 0;
s32 offset = iwl_temp_calib_to_offset(priv);
vt = le32_to_cpu(priv->statistics.general.temperature);
vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset;
/* now vt hold the temperature in Kelvin */
priv->temperature = KELVIN_TO_CELSIUS(vt);
}
/* Calc max signal level (dBm) among 3 possible receivers */
int iwl5000_calc_rssi(struct iwl_priv *priv,
struct iwl_rx_phy_res *rx_resp)
@ -1511,7 +1516,6 @@ struct iwl_lib_ops iwl5000_lib = {
.init_alive_start = iwl5000_init_alive_start,
.alive_notify = iwl5000_alive_notify,
.send_tx_power = iwl5000_send_tx_power,
.temperature = iwl5000_temperature,
.update_chain_flags = iwl_update_chain_flags,
.apm_ops = {
.init = iwl5000_apm_init,
@ -1538,6 +1542,59 @@ struct iwl_lib_ops iwl5000_lib = {
},
.post_associate = iwl_post_associate,
.config_ap = iwl_config_ap,
.temp_ops = {
.temperature = iwl5000_temperature,
.set_ct_kill = iwl5000_set_ct_threshold,
},
};
static struct iwl_lib_ops iwl5150_lib = {
.set_hw_params = iwl5000_hw_set_hw_params,
.txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
.txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
.txq_set_sched = iwl5000_txq_set_sched,
.txq_agg_enable = iwl5000_txq_agg_enable,
.txq_agg_disable = iwl5000_txq_agg_disable,
.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 = iwl5000_rx_handler_setup,
.setup_deferred_work = iwl5000_setup_deferred_work,
.is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
.load_ucode = iwl5000_load_ucode,
.init_alive_start = iwl5000_init_alive_start,
.alive_notify = iwl5000_alive_notify,
.send_tx_power = iwl5000_send_tx_power,
.update_chain_flags = iwl_update_chain_flags,
.apm_ops = {
.init = iwl5000_apm_init,
.reset = iwl5000_apm_reset,
.stop = iwl5000_apm_stop,
.config = iwl5000_nic_config,
.set_pwr_src = iwl_set_pwr_src,
},
.eeprom_ops = {
.regulatory_bands = {
EEPROM_5000_REG_BAND_1_CHANNELS,
EEPROM_5000_REG_BAND_2_CHANNELS,
EEPROM_5000_REG_BAND_3_CHANNELS,
EEPROM_5000_REG_BAND_4_CHANNELS,
EEPROM_5000_REG_BAND_5_CHANNELS,
EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
EEPROM_5000_REG_BAND_52_FAT_CHANNELS
},
.verify_signature = iwlcore_eeprom_verify_signature,
.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
.release_semaphore = iwlcore_eeprom_release_semaphore,
.calib_version = iwl5000_eeprom_calib_version,
.query_addr = iwl5000_eeprom_query_addr,
},
.post_associate = iwl_post_associate,
.config_ap = iwl_config_ap,
.temp_ops = {
.temperature = iwl5150_temperature,
.set_ct_kill = iwl5150_set_ct_threshold,
},
};
struct iwl_ops iwl5000_ops = {
@ -1547,6 +1604,13 @@ struct iwl_ops iwl5000_ops = {
.smgmt = &iwl5000_station_mgmt,
};
static struct iwl_ops iwl5150_ops = {
.lib = &iwl5150_lib,
.hcmd = &iwl5000_hcmd,
.utils = &iwl5000_hcmd_utils,
.smgmt = &iwl5000_station_mgmt,
};
struct iwl_mod_params iwl50_mod_params = {
.num_of_queues = IWL50_NUM_QUEUES,
.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
@ -1642,7 +1706,7 @@ struct iwl_cfg iwl5150_agn_cfg = {
.ucode_api_max = IWL5150_UCODE_API_MAX,
.ucode_api_min = IWL5150_UCODE_API_MIN,
.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
.ops = &iwl5000_ops,
.ops = &iwl5150_ops,
.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
.eeprom_ver = EEPROM_5050_EEPROM_VERSION,
.eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,

28
drivers/net/wireless/iwlwifi/iwl-core.h
View File

@ -112,6 +112,19 @@ struct iwl_hcmd_utils_ops {
struct iwl_rx_phy_res *rx_resp);
};
struct iwl_apm_ops {
int (*init)(struct iwl_priv *priv);
int (*reset)(struct iwl_priv *priv);
void (*stop)(struct iwl_priv *priv);
void (*config)(struct iwl_priv *priv);
int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
};
struct iwl_temp_ops {
void (*temperature)(struct iwl_priv *priv);
void (*set_ct_kill)(struct iwl_priv *priv);
};
struct iwl_lib_ops {
/* set hw dependent parameters */
int (*set_hw_params)(struct iwl_priv *priv);
@ -149,23 +162,20 @@ struct iwl_lib_ops {
int (*is_valid_rtc_data_addr)(u32 addr);
/* 1st ucode load */
int (*load_ucode)(struct iwl_priv *priv);
/* power management */
struct {
int (*init)(struct iwl_priv *priv);
int (*reset)(struct iwl_priv *priv);
void (*stop)(struct iwl_priv *priv);
void (*config)(struct iwl_priv *priv);
int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
} apm_ops;
/* power management */
struct iwl_apm_ops apm_ops;
/* power */
int (*send_tx_power) (struct iwl_priv *priv);
void (*update_chain_flags)(struct iwl_priv *priv);
void (*temperature) (struct iwl_priv *priv);
void (*post_associate) (struct iwl_priv *priv);
void (*config_ap) (struct iwl_priv *priv);
/* eeprom operations (as defined in iwl-eeprom.h) */
struct iwl_eeprom_ops eeprom_ops;
/* temperature */
struct iwl_temp_ops temp_ops;
};
struct iwl_ops {

4
drivers/net/wireless/iwlwifi/iwl-rx.c
View File

@ -582,8 +582,8 @@ void iwl_rx_statistics(struct iwl_priv *priv,
iwl_leds_background(priv);
if (priv->cfg->ops->lib->temperature && change)
priv->cfg->ops->lib->temperature(priv);
if (priv->cfg->ops->lib->temp_ops.temperature && change)
priv->cfg->ops->lib->temp_ops.temperature(priv);
}
EXPORT_SYMBOL(iwl_rx_statistics);