[2/2] mt76: mt76x02: introduce SAR support

Message ID	9e479a1e69f078de9986cca8c8901d5d83a12f0b.1637496644.git.lorenzo@kernel.org (mailing list archive)
State	Accepted
Delegated to:	Felix Fietkau
Headers	show Return-Path: <linux-wireless-owner@kernel.org> From: Lorenzo Bianconi <lorenzo@kernel.org> To: nbd@nbd.name Cc: linux-wireless@vger.kernel.org, lorenzo.bianconi@redhat.com Subject: [PATCH 2/2] mt76: mt76x02: introduce SAR support Date: Sun, 21 Nov 2021 13:12:25 +0100 Message-Id: <9e479a1e69f078de9986cca8c8901d5d83a12f0b.1637496644.git.lorenzo@kernel.org> In-Reply-To: <cover.1637496643.git.lorenzo@kernel.org> References: <cover.1637496643.git.lorenzo@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	introduce SAR support to mt76x02 drivers \| expand [0/2] introduce SAR support to mt76x02 drivers [1/2] mt76: move sar utilities to mt76-core module [2/2] mt76: mt76x02: introduce SAR support

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/init.c b/drivers/net/wireless/mediatek/mt76/mt76x0/init.c index 0bac39bf3b66..66d47c70111a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/init.c @@ -237,7 +237,10 @@ int mt76x0_register_device(struct mt76x02_dev *dev) { int ret; - mt76x02_init_device(dev); + ret = mt76x02_init_device(dev); + if (ret) + return ret; + mt76x02_config_mac_addr_list(dev); ret = mt76_register_device(&dev->mt76, true, mt76x02_rates, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c index 700ae9c12f1d..07380cce8755 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c @@ -31,6 +31,32 @@ mt76x0_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef) mt76_txq_schedule_all(&dev->mphy); } +int mt76x0_set_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar) +{ + int err = -EINVAL, power = hw->conf.power_level * 2; + struct mt76x02_dev *dev = hw->priv; + struct mt76_phy *mphy = &dev->mphy; + + mutex_lock(&dev->mt76.mutex); + if (!cfg80211_chandef_valid(&mphy->chandef)) + goto out; + + err = mt76_init_sar_power(hw, sar); + if (err) + goto out; + + dev->txpower_conf = mt76_get_sar_power(mphy, mphy->chandef.chan, + power); + if (test_bit(MT76_STATE_RUNNING, &mphy->state)) + mt76x0_phy_set_txpower(dev); +out: + mutex_unlock(&dev->mt76.mutex); + + return err; +} +EXPORT_SYMBOL_GPL(mt76x0_set_sar_specs); + int mt76x0_config(struct ieee80211_hw *hw, u32 changed) { struct mt76x02_dev *dev = hw->priv; @@ -44,9 +70,13 @@ int mt76x0_config(struct ieee80211_hw *hw, u32 changed) } if (changed & IEEE80211_CONF_CHANGE_POWER) { - dev->txpower_conf = hw->conf.power_level * 2; + struct mt76_phy *mphy = &dev->mphy; - if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) + dev->txpower_conf = hw->conf.power_level * 2; + dev->txpower_conf = mt76_get_sar_power(mphy, + mphy->chandef.chan, + dev->txpower_conf); + if (test_bit(MT76_STATE_RUNNING, &mphy->state)) mt76x0_phy_set_txpower(dev); } diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h index 6953f253a28a..99dcb8feb9f7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h @@ -49,6 +49,8 @@ void mt76x0_chip_onoff(struct mt76x02_dev *dev, bool enable, bool reset); void mt76x0_mac_stop(struct mt76x02_dev *dev); int mt76x0_config(struct ieee80211_hw *hw, u32 changed); +int mt76x0_set_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar); /* PHY */ void mt76x0_phy_init(struct mt76x02_dev *dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c index f19228fc5a70..9277ff38b7a2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c @@ -85,6 +85,7 @@ static const struct ieee80211_ops mt76x0e_ops = { .set_rts_threshold = mt76x02_set_rts_threshold, .get_antenna = mt76_get_antenna, .reconfig_complete = mt76x02_reconfig_complete, + .set_sar_specs = mt76x0_set_sar_specs, }; static int mt76x0e_init_hardware(struct mt76x02_dev *dev, bool resume) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c index f2b2fa733845..436daf6d6d86 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c @@ -141,6 +141,7 @@ static const struct ieee80211_ops mt76x0u_ops = { .set_tim = mt76_set_tim, .release_buffered_frames = mt76_release_buffered_frames, .get_antenna = mt76_get_antenna, + .set_sar_specs = mt76x0_set_sar_specs, }; static int mt76x0u_init_hardware(struct mt76x02_dev *dev, bool reset) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02.h b/drivers/net/wireless/mediatek/mt76/mt76x02.h index 4d58c2c1c0ac..44d1a92d9a90 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02.h @@ -133,7 +133,7 @@ struct mt76x02_dev { extern struct ieee80211_rate mt76x02_rates[12]; -void mt76x02_init_device(struct mt76x02_dev *dev); +int mt76x02_init_device(struct mt76x02_dev *dev); void mt76x02_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, u64 multicast); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c index 1f17d86ff755..06f8fb883ead 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c @@ -138,7 +138,7 @@ mt76x02_led_set_brightness(struct led_classdev *led_cdev, mt76x02_led_set_config(mdev, 0xff, 0); } -void mt76x02_init_device(struct mt76x02_dev *dev) +int mt76x02_init_device(struct mt76x02_dev *dev) { struct ieee80211_hw *hw = mt76_hw(dev); struct wiphy *wiphy = hw->wiphy; @@ -174,6 +174,13 @@ void mt76x02_init_device(struct mt76x02_dev *dev) } wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); + wiphy->sar_capa = &mt76_sar_capa; + dev->mt76.phy.frp = devm_kcalloc(dev->mt76.dev, + wiphy->sar_capa->num_freq_ranges, + sizeof(struct mt76_freq_range_power), + GFP_KERNEL); + if (!dev->mt76.phy.frp) + return -ENOMEM; hw->sta_data_size = sizeof(struct mt76x02_sta); hw->vif_data_size = sizeof(struct mt76x02_vif); @@ -197,6 +204,8 @@ void mt76x02_init_device(struct mt76x02_dev *dev) dev->mphy.chainmask = 0x101; dev->mphy.antenna_mask = 1; } + + return 0; } EXPORT_SYMBOL_GPL(mt76x02_init_device); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/init.c b/drivers/net/wireless/mediatek/mt76/mt76x2/init.c index a92a479aebaa..7b01a06d7f8d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/init.c @@ -8,6 +8,35 @@ #include "eeprom.h" #include "../mt76x02_phy.h" +int mt76x2_set_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar) +{ + int err = -EINVAL, power = hw->conf.power_level * 2; + struct mt76x02_dev *dev = hw->priv; + struct mt76_phy *mphy = &dev->mphy; + + mutex_lock(&dev->mt76.mutex); + if (!cfg80211_chandef_valid(&mphy->chandef)) + goto out; + + err = mt76_init_sar_power(hw, sar); + if (err) + goto out; + + dev->txpower_conf = mt76_get_sar_power(mphy, mphy->chandef.chan, + power); + /* convert to per-chain power for 2x2 devices */ + dev->txpower_conf -= 6; + + if (test_bit(MT76_STATE_RUNNING, &mphy->state)) + mt76x2_phy_set_txpower(dev); +out: + mutex_unlock(&dev->mt76.mutex); + + return err; +} +EXPORT_SYMBOL_GPL(mt76x2_set_sar_specs); + static void mt76x2_set_wlan_state(struct mt76x02_dev *dev, bool enable) { diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2.h b/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2.h index d01f47c83eb1..be1217329a77 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2.h @@ -41,6 +41,8 @@ extern const struct ieee80211_ops mt76x2_ops; int mt76x2_register_device(struct mt76x02_dev *dev); int mt76x2_resume_device(struct mt76x02_dev *dev); +int mt76x2_set_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar); void mt76x2_phy_power_on(struct mt76x02_dev *dev); void mt76x2_stop_hardware(struct mt76x02_dev *dev); int mt76x2_eeprom_init(struct mt76x02_dev *dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c index c6fa8cf92529..e38e8e5685c2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c @@ -292,8 +292,9 @@ int mt76x2_register_device(struct mt76x02_dev *dev) int ret; INIT_DELAYED_WORK(&dev->cal_work, mt76x2_phy_calibrate); - - mt76x02_init_device(dev); + ret = mt76x02_init_device(dev); + if (ret) + return ret; ret = mt76x2_init_hardware(dev); if (ret) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c index 933125b07ea3..b38bb7a2362b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c @@ -78,8 +78,12 @@ mt76x2_config(struct ieee80211_hw *hw, u32 changed) } if (changed & IEEE80211_CONF_CHANGE_POWER) { - dev->txpower_conf = hw->conf.power_level * 2; + struct mt76_phy *mphy = &dev->mphy; + dev->txpower_conf = hw->conf.power_level * 2; + dev->txpower_conf = mt76_get_sar_power(mphy, + mphy->chandef.chan, + dev->txpower_conf); /* convert to per-chain power for 2x2 devices */ dev->txpower_conf -= 6; @@ -155,5 +159,6 @@ const struct ieee80211_ops mt76x2_ops = { .get_antenna = mt76_get_antenna, .set_rts_threshold = mt76x02_set_rts_threshold, .reconfig_complete = mt76x02_reconfig_complete, + .set_sar_specs = mt76x2_set_sar_specs, }; diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c index 85dcdc22fbeb..33a14365ec9b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c @@ -194,7 +194,9 @@ int mt76x2u_register_device(struct mt76x02_dev *dev) int err; INIT_DELAYED_WORK(&dev->cal_work, mt76x2u_phy_calibrate); - mt76x02_init_device(dev); + err = mt76x02_init_device(dev); + if (err) + return err; err = mt76x2u_init_eeprom(dev); if (err < 0) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c index b66836928d9d..ac07ed1f63a3 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c @@ -78,12 +78,16 @@ mt76x2u_config(struct ieee80211_hw *hw, u32 changed) } if (changed & IEEE80211_CONF_CHANGE_POWER) { - dev->txpower_conf = hw->conf.power_level * 2; + struct mt76_phy *mphy = &dev->mphy; + dev->txpower_conf = hw->conf.power_level * 2; + dev->txpower_conf = mt76_get_sar_power(mphy, + mphy->chandef.chan, + dev->txpower_conf); /* convert to per-chain power for 2x2 devices */ dev->txpower_conf -= 6; - if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) + if (test_bit(MT76_STATE_RUNNING, &mphy->state)) mt76x2_phy_set_txpower(dev); } @@ -121,4 +125,5 @@ const struct ieee80211_ops mt76x2u_ops = { .set_tim = mt76_set_tim, .release_buffered_frames = mt76_release_buffered_frames, .get_antenna = mt76_get_antenna, + .set_sar_specs = mt76x2_set_sar_specs, };

[2/2] mt76: mt76x02: introduce SAR support

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