diff options
author | Ming Yen Hsieh <mingyen.hsieh@mediatek.com> | 2023-09-30 05:25:09 +0300 |
---|---|---|
committer | Felix Fietkau <nbd@nbd.name> | 2023-09-30 21:17:18 +0300 |
commit | 09382d8f8641bc12fffc41a93eb9b37be0e653c0 (patch) | |
tree | acb9d8d97d1fd2f61504bceb73bfc42fc4abf6a7 | |
parent | 4fc8df50fd41c2762d893211487be0ecb24c6a05 (diff) | |
download | linux-09382d8f8641bc12fffc41a93eb9b37be0e653c0.tar.xz |
wifi: mt76: mt7921: update the channel usage when the regd domain changed
The 5.9/6GHz channel license of a certain platform device has been
regulated in various countries. That may be difference with standard
Liunx regulatory domain settings. In this case, when .reg_notifier()
called for regulatory change, mt792x chipset should update the channel
usage based on clc or dts configurations.
Channel would be disabled by following cases.
* clc report the particular UNII-x is disabled.
* dts enabled and the channel is not configured.
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/eeprom.c | 7 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76.h | 5 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/init.c | 51 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 3 |
4 files changed, 64 insertions, 2 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c index 36564930aef1..7725dd6763ef 100644 --- a/drivers/net/wireless/mediatek/mt76/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/eeprom.c @@ -188,7 +188,7 @@ static bool mt76_string_prop_find(struct property *prop, const char *str) return false; } -static struct device_node * +struct device_node * mt76_find_power_limits_node(struct mt76_dev *dev) { struct device_node *np = dev->dev->of_node; @@ -227,6 +227,7 @@ mt76_find_power_limits_node(struct mt76_dev *dev) of_node_put(np); return fallback; } +EXPORT_SYMBOL_GPL(mt76_find_power_limits_node); static const __be32 * mt76_get_of_array(struct device_node *np, char *name, size_t *len, int min) @@ -241,7 +242,7 @@ mt76_get_of_array(struct device_node *np, char *name, size_t *len, int min) return prop->value; } -static struct device_node * +struct device_node * mt76_find_channel_node(struct device_node *np, struct ieee80211_channel *chan) { struct device_node *cur; @@ -265,6 +266,8 @@ mt76_find_channel_node(struct device_node *np, struct ieee80211_channel *chan) return NULL; } +EXPORT_SYMBOL_GPL(mt76_find_channel_node); + static s8 mt76_get_txs_delta(struct device_node *np, u8 nss) diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index fede40cf86b7..3730c5e7d702 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -1537,6 +1537,11 @@ mt76_mcu_skb_send_msg(struct mt76_dev *dev, struct sk_buff *skb, int cmd, void mt76_set_irq_mask(struct mt76_dev *dev, u32 addr, u32 clear, u32 set); +struct device_node * +mt76_find_power_limits_node(struct mt76_dev *dev); +struct device_node * +mt76_find_channel_node(struct device_node *np, struct ieee80211_channel *chan); + s8 mt76_get_rate_power_limits(struct mt76_phy *phy, struct ieee80211_channel *chan, struct mt76_power_limits *dest, diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index 534c7bee5ef1..55baac70860b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -59,6 +59,55 @@ static int mt7921_thermal_init(struct mt792x_phy *phy) } static void +mt7921_regd_channel_update(struct wiphy *wiphy, struct mt792x_dev *dev) +{ +#define IS_UNII_INVALID(idx, sfreq, efreq) \ + (!(dev->phy.clc_chan_conf & BIT(idx)) && (cfreq) >= (sfreq) && (cfreq) <= (efreq)) + struct ieee80211_supported_band *sband; + struct mt76_dev *mdev = &dev->mt76; + struct device_node *np, *band_np; + struct ieee80211_channel *ch; + int i, cfreq; + + np = mt76_find_power_limits_node(mdev); + + sband = wiphy->bands[NL80211_BAND_5GHZ]; + band_np = np ? of_get_child_by_name(np, "txpower-5g") : NULL; + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + cfreq = ch->center_freq; + + if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) { + ch->flags |= IEEE80211_CHAN_DISABLED; + continue; + } + + /* UNII-4 */ + if (IS_UNII_INVALID(0, 5850, 5925)) + ch->flags |= IEEE80211_CHAN_DISABLED; + } + + sband = wiphy->bands[NL80211_BAND_6GHZ]; + band_np = np ? of_get_child_by_name(np, "txpower-6g") : NULL; + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + cfreq = ch->center_freq; + + if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) { + ch->flags |= IEEE80211_CHAN_DISABLED; + continue; + } + + /* UNII-5/6/7/8 */ + if (IS_UNII_INVALID(1, 5925, 6425) || + IS_UNII_INVALID(2, 6425, 6525) || + IS_UNII_INVALID(3, 6525, 6875) || + IS_UNII_INVALID(4, 6875, 7125)) + ch->flags |= IEEE80211_CHAN_DISABLED; + } +} + +static void mt7921_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request) { @@ -74,6 +123,8 @@ mt7921_regd_notifier(struct wiphy *wiphy, mt76_connac_mcu_set_channel_domain(hw->priv); mt7921_set_tx_sar_pwr(hw, NULL); mt792x_mutex_release(dev); + + mt7921_regd_channel_update(wiphy, dev); } int mt7921_mac_init(struct mt792x_dev *dev) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 4f66e27aa43a..63f3d4a5c9aa 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -1247,6 +1247,7 @@ int __mt7921_mcu_set_clc(struct mt792x_dev *dev, u8 *alpha2, u8 idx) { #define CLC_CAP_EVT_EN BIT(0) +#define CLC_CAP_DTS_EN BIT(1) struct sk_buff *skb, *ret_skb = NULL; struct { u8 ver; @@ -1274,6 +1275,8 @@ int __mt7921_mcu_set_clc(struct mt792x_dev *dev, u8 *alpha2, if (dev->phy.chip_cap & MT792x_CHIP_CAP_CLC_EVT_EN) req.cap |= CLC_CAP_EVT_EN; + if (mt76_find_power_limits_node(&dev->mt76)) + req.cap |= CLC_CAP_DTS_EN; pos = clc->data; for (i = 0; i < clc->nr_country; i++) { |