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path: root/drivers/net/wireless/ath/ath9k/eeprom.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/eeprom.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/eeprom.c29
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,