cfg80211/mac80211: Update set_tx_power to use mBm instead of dBm units
In preparation for a TX power setting interface in the nl80211, change the
.set_tx_power function to use mBm units instead of dBm for greater accuracy and
smaller power levels.
Also, already in advance move the tx_power_setting enumeration to nl80211.
This change affects the .tx_set_power function prototype. As a result, the
corresponding changes are needed to modules using it. These are mac80211,
iwmc3200wifi and rndis_wlan.
Cc: Samuel Ortiz <samuel.ortiz@intel.com>
Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Acked-by: Samuel Ortiz <samuel.ortiz@intel.com>
Acked-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwmc3200wifi/cfg80211.c b/drivers/net/wireless/iwmc3200wifi/cfg80211.c
index 902e95f..6061967 100644
--- a/drivers/net/wireless/iwmc3200wifi/cfg80211.c
+++ b/drivers/net/wireless/iwmc3200wifi/cfg80211.c
@@ -670,20 +670,24 @@
}
static int iwm_cfg80211_set_txpower(struct wiphy *wiphy,
- enum tx_power_setting type, int dbm)
+ enum nl80211_tx_power_setting type, int mbm)
{
struct iwm_priv *iwm = wiphy_to_iwm(wiphy);
int ret;
switch (type) {
- case TX_POWER_AUTOMATIC:
+ case NL80211_TX_POWER_AUTOMATIC:
return 0;
- case TX_POWER_FIXED:
+ case NL80211_TX_POWER_FIXED:
+ if (mbm < 0 || (mbm % 100))
+ return -EOPNOTSUPP;
+
if (!test_bit(IWM_STATUS_READY, &iwm->status))
return 0;
ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
- CFG_TX_PWR_LIMIT_USR, dbm * 2);
+ CFG_TX_PWR_LIMIT_USR,
+ MBM_TO_DBM(mbm) * 2);
if (ret < 0)
return ret;