summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/iwmc3200wifi/eeprom.c
diff options
context:
space:
mode:
authorSamuel Ortiz <sameo@linux.intel.com>2009-11-24 11:33:27 +0800
committerJohn W. Linville <linville@tuxdriver.com>2009-11-28 15:04:40 -0500
commit902b6667d3d17ac53ec62c036cd2bcf713c29d86 (patch)
tree95f6d93fc8b0b3f9f021aadc493db27aa3ca0948 /drivers/net/wireless/iwmc3200wifi/eeprom.c
parentf6cd53c6a4204a3d4a274546449a70a766a99b6e (diff)
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>
Diffstat (limited to 'drivers/net/wireless/iwmc3200wifi/eeprom.c')
-rw-r--r--drivers/net/wireless/iwmc3200wifi/eeprom.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwmc3200wifi/eeprom.c b/drivers/net/wireless/iwmc3200wifi/eeprom.c
index 365910fbe01e..c574f58dfb20 100644
--- a/drivers/net/wireless/iwmc3200wifi/eeprom.c
+++ b/drivers/net/wireless/iwmc3200wifi/eeprom.c
@@ -66,6 +66,10 @@ static struct iwm_eeprom_entry eeprom_map[] = {
[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 @@ u8 *iwm_eeprom_access(struct iwm_priv *iwm, u8 eeprom_id)
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;