From: Lorenzo Bianconi Date: Sun, 21 Nov 2021 12:12:24 +0000 (+0100) Subject: mt76: move sar utilities to mt76-core module X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=b3cb885e56d5f64880109da9516ef2df1e9db7b9;p=uclinux-h8%2Flinux.git mt76: move sar utilities to mt76-core module Move mt76_get_sar_power and mt76_init_sar_power in the common code. This is a preliminary patch to add sar support to mt76x02 drivers. Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau --- diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 825b6e98a818..acf400fa8469 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -1348,6 +1348,59 @@ int mt76_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif, } EXPORT_SYMBOL_GPL(mt76_get_txpower); +int mt76_init_sar_power(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar) +{ + struct mt76_phy *phy = hw->priv; + const struct cfg80211_sar_capa *capa = hw->wiphy->sar_capa; + int i; + + if (sar->type != NL80211_SAR_TYPE_POWER || !sar->num_sub_specs) + return -EINVAL; + + for (i = 0; i < sar->num_sub_specs; i++) { + u32 index = sar->sub_specs[i].freq_range_index; + /* SAR specifies power limitaton in 0.25dbm */ + s32 power = sar->sub_specs[i].power >> 1; + + if (power > 127 || power < -127) + power = 127; + + phy->frp[index].range = &capa->freq_ranges[index]; + phy->frp[index].power = power; + } + + return 0; +} +EXPORT_SYMBOL_GPL(mt76_init_sar_power); + +int mt76_get_sar_power(struct mt76_phy *phy, + struct ieee80211_channel *chan, + int power) +{ + const struct cfg80211_sar_capa *capa = phy->hw->wiphy->sar_capa; + int freq, i; + + if (!capa || !phy->frp) + return power; + + if (power > 127 || power < -127) + power = 127; + + freq = ieee80211_channel_to_frequency(chan->hw_value, chan->band); + for (i = 0 ; i < capa->num_freq_ranges; i++) { + if (phy->frp[i].range && + freq >= phy->frp[i].range->start_freq && + freq < phy->frp[i].range->end_freq) { + power = min_t(int, phy->frp[i].power, power); + break; + } + } + + return power; +} +EXPORT_SYMBOL_GPL(mt76_get_sar_power); + static void __mt76_csa_finish(void *priv, u8 *mac, struct ieee80211_vif *vif) { diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index e7ced9487711..3acb00840d03 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -1159,6 +1159,11 @@ int mt76_get_min_avg_rssi(struct mt76_dev *dev, bool ext_phy); int mt76_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int *dbm); +int mt76_init_sar_power(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar); +int mt76_get_sar_power(struct mt76_phy *phy, + struct ieee80211_channel *chan, + int power); void mt76_csa_check(struct mt76_dev *dev); void mt76_csa_finish(struct mt76_dev *dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index eba827f99790..92b45e98dbc1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -1881,30 +1881,6 @@ mt76_connac_mcu_build_sku(struct mt76_dev *dev, s8 *sku, } } -static s8 mt76_connac_get_sar_power(struct mt76_phy *phy, - struct ieee80211_channel *chan, - s8 target_power) -{ - const struct cfg80211_sar_capa *capa = phy->hw->wiphy->sar_capa; - struct mt76_freq_range_power *frp = phy->frp; - int freq, i; - - if (!capa || !frp) - return target_power; - - freq = ieee80211_channel_to_frequency(chan->hw_value, chan->band); - for (i = 0 ; i < capa->num_freq_ranges; i++) { - if (frp[i].range && - freq >= frp[i].range->start_freq && - freq < frp[i].range->end_freq) { - target_power = min_t(s8, frp[i].power, target_power); - break; - } - } - - return target_power; -} - static s8 mt76_connac_get_ch_power(struct mt76_phy *phy, struct ieee80211_channel *chan, s8 target_power) @@ -2049,8 +2025,7 @@ mt76_connac_mcu_rate_txpower_band(struct mt76_phy *phy, reg_power = mt76_connac_get_ch_power(phy, &chan, tx_power); - sar_power = mt76_connac_get_sar_power(phy, &chan, - reg_power); + sar_power = mt76_get_sar_power(phy, &chan, reg_power); mt76_get_rate_power_limits(phy, &chan, &limits, sar_power); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c index 5d0b0c18e786..db34af1b693a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c @@ -1350,35 +1350,17 @@ static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, static int mt7921_set_sar_specs(struct ieee80211_hw *hw, const struct cfg80211_sar_specs *sar) { - const struct cfg80211_sar_capa *capa = hw->wiphy->sar_capa; struct mt7921_dev *dev = mt7921_hw_dev(hw); - struct mt76_freq_range_power *data, *frp; struct mt76_phy *mphy = hw->priv; int err; - u32 i; - - if (sar->type != NL80211_SAR_TYPE_POWER || !sar->num_sub_specs) - return -EINVAL; mt7921_mutex_acquire(dev); - - data = mphy->frp; - - for (i = 0; i < sar->num_sub_specs; i++) { - u32 index = sar->sub_specs[i].freq_range_index; - /* SAR specifies power limitaton in 0.25dbm */ - s32 power = sar->sub_specs[i].power >> 1; - - if (power > 127 || power < -127) - power = 127; - - frp = &data[index]; - frp->range = &capa->freq_ranges[index]; - frp->power = power; - } + err = mt76_init_sar_power(hw, sar); + if (err) + goto out; err = mt76_connac_mcu_set_rate_txpower(mphy); - +out: mt7921_mutex_release(dev); return err;