diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000.c | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-eeprom.h | 1 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index c1e7a426408..26e04eccaa8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -426,6 +426,17 @@ 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) +{ + 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; +} + /* * Calibration */ @@ -859,7 +870,7 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) case CSR_HW_REV_TYPE_5150: /* 5150 wants in Kelvin */ priv->hw_params.ct_kill_threshold = - CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD); + iwl5150_get_ct_threshold(priv); break; } diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h index 997f23c8db2..8f6b05fa233 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h @@ -147,6 +147,7 @@ struct iwl_eeprom_channel { /*5000 calibrations */ #define EEPROM_5000_CALIB_ALL (INDIRECT_ADDRESS | INDIRECT_CALIBRATION) #define EEPROM_5000_XTAL ((2*0x128) | EEPROM_5000_CALIB_ALL) +#define EEPROM_5000_TEMPERATURE ((2*0x12A) | EEPROM_5000_CALIB_ALL) /* 5000 links */ #define EEPROM_5000_LINK_HOST (2*0x64) |