diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2019-06-11 08:38:52 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-06-27 12:58:13 +0200 |
| commit | 391ff7ffd149da87019d652cd678d9e76103e415 (patch) | |
| tree | 7f96699b842b15415fecf725f2e11a1694a1de9c /drivers/net/wireless/mediatek/mt76/mt7615 | |
| parent | bf92e76851009e6bf082db9e9de9b0ab9320cf26 (diff) | |
mt76: mt7615: init per-channel target power
Set per-channel target power as the minimum between the regulatory
tx power and the value configured in the eeprom
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/init.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c index 693e597a3230..3f826e4f1cd6 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -165,6 +165,46 @@ static int mt7615_init_debugfs(struct mt7615_dev *dev) return 0; } +static void +mt7615_init_txpower(struct mt7615_dev *dev, + struct ieee80211_supported_band *sband) +{ + int i, n_chains = hweight8(dev->mt76.antenna_mask); + u8 *eep = (u8 *)dev->mt76.eeprom.data; + + for (i = 0; i < sband->n_channels; i++) { + struct ieee80211_channel *chan = &sband->channels[i]; + u8 target_power = 0; + int j; + + for (j = 0; j < n_chains; j++) { + int index; + + index = mt7615_eeprom_get_power_index(chan, j); + target_power = max(target_power, eep[index]); + } + + target_power = DIV_ROUND_UP(target_power, 2); + switch (n_chains) { + case 4: + target_power += 6; + break; + case 3: + target_power += 4; + break; + case 2: + target_power += 3; + break; + default: + break; + } + + chan->max_power = min_t(int, chan->max_reg_power, + target_power); + chan->orig_mpwr = target_power; + } +} + int mt7615_register_device(struct mt7615_dev *dev) { struct ieee80211_hw *hw = mt76_hw(dev); @@ -212,6 +252,9 @@ int mt7615_register_device(struct mt7615_dev *dev) if (ret) return ret; + mt7615_init_txpower(dev, &dev->mt76.sband_2g.sband); + mt7615_init_txpower(dev, &dev->mt76.sband_5g.sband); + hw->max_tx_fragments = MT_TXP_MAX_BUF_NUM; return mt7615_init_debugfs(dev); |