diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/eeprom.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c index 0512397a293c..971d770722cf 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.c +++ b/drivers/net/wireless/ath/ath9k/eeprom.c @@ -113,9 +113,34 @@ void ath9k_hw_usb_gen_fill_eeprom(struct ath_hw *ah, u16 *eep_data, } } -bool ath9k_hw_nvram_read(struct ath_common *common, u32 off, u16 *data) +static bool ath9k_hw_nvram_read_blob(struct ath_hw *ah, u32 off, + u16 *data) { - return common->bus_ops->eeprom_read(common, off, data); + u16 *blob_data; + + if (off * sizeof(u16) > ah->eeprom_blob->size) + return false; + + blob_data = (u16 *)ah->eeprom_blob->data; + *data = blob_data[off]; + return true; +} + +bool ath9k_hw_nvram_read(struct ath_hw *ah, u32 off, u16 *data) +{ + struct ath_common *common = ath9k_hw_common(ah); + bool ret; + + if (ah->eeprom_blob) + ret = ath9k_hw_nvram_read_blob(ah, off, data); + else + ret = common->bus_ops->eeprom_read(common, off, data); + + if (!ret) + ath_dbg(common, EEPROM, + "unable to read eeprom region at offset %u\n", off); + + return ret; } void ath9k_hw_fill_vpd_table(u8 pwrMin, u8 pwrMax, u8 *pPwrList, |