iwmc3200wifi: Parse HT channels EEPROM entries
The fat channels eeprom entries let us know if 11n is enabled or not. We
update our wiphy supported bands based on that.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwmc3200wifi/eeprom.c b/drivers/net/wireless/iwmc3200wifi/eeprom.c
index 365910f..c574f58 100644
--- a/drivers/net/wireless/iwmc3200wifi/eeprom.c
+++ b/drivers/net/wireless/iwmc3200wifi/eeprom.c
@@ -66,6 +66,10 @@
[IWM_EEPROM_SKU_CAP] =
{"SKU capabilities", IWM_EEPROM_SKU_CAP_OFF, IWM_EEPROM_SKU_CAP_LEN},
+ [IWM_EEPROM_FAT_CHANNELS_CAP] =
+ {"HT channels capabilities", IWM_EEPROM_FAT_CHANNELS_CAP_OFF,
+ IWM_EEPROM_FAT_CHANNELS_CAP_LEN},
+
[IWM_EEPROM_CALIB_RXIQ_OFFSET] =
{"RX IQ offset", IWM_EEPROM_CALIB_RXIQ_OFF, IWM_EEPROM_INDIRECT_LEN},
@@ -146,6 +150,32 @@
return iwm->eeprom + eeprom_map[eeprom_id].offset;
}
+int iwm_eeprom_fat_channels(struct iwm_priv *iwm)
+{
+ struct wiphy *wiphy = iwm_to_wiphy(iwm);
+ struct ieee80211_supported_band *band;
+ u16 *channels, i;
+
+ channels = (u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_FAT_CHANNELS_CAP);
+ if (IS_ERR(channels))
+ return PTR_ERR(channels);
+
+ band = wiphy->bands[IEEE80211_BAND_2GHZ];
+ band->ht_cap.ht_supported = true;
+
+ for (i = 0; i < IWM_EEPROM_FAT_CHANNELS_24; i++)
+ if (!(channels[i] & IWM_EEPROM_FAT_CHANNEL_ENABLED))
+ band->ht_cap.ht_supported = false;
+
+ band = wiphy->bands[IEEE80211_BAND_5GHZ];
+ band->ht_cap.ht_supported = true;
+ for (i = IWM_EEPROM_FAT_CHANNELS_24; i < IWM_EEPROM_FAT_CHANNELS; i++)
+ if (!(channels[i] & IWM_EEPROM_FAT_CHANNEL_ENABLED))
+ band->ht_cap.ht_supported = false;
+
+ return 0;
+}
+
int iwm_eeprom_init(struct iwm_priv *iwm)
{
int i, ret = 0;