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Sat, 30 Sep 2023 10:25:20 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sat, 30 Sep 2023 10:25:20 +0800 From: Deren Wu To: Felix Fietkau , Lorenzo Bianconi CC: Sean Wang , Soul Huang , Ming Yen Hsieh , Leon Yen , Eric-SY Chang , KM Lin , Robin Chiu , CH Yeh , Posh Sun , Stella Chang , Quan Zhou , Ryder Lee , Shayne Chen , linux-wireless , linux-mediatek , Deren Wu Subject: [PATCH v2 5/6] wifi: mt76: mt7921: update the channel usage when the regd domain changed Date: Sat, 30 Sep 2023 10:25:09 +0800 Message-ID: <14b7b24fbe0029cac43d2c0c9e471b118419ad8e.1696039301.git.deren.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--8.414400-8.000000 X-TMASE-MatchedRID: UY2dYc6cHYBufzckypRuvVPjo7D4SFg4j5hUmqusTPhtw+n+iKWyyMCS 2AMm1nQC8SXQ3wH4DTvx3J/N9EDof6NRZuU/UXSEA9lly13c/gFflOpBqBHTtzUsHjosUACSF8G YXulqwlpW8GYwJHfmJb1StHOhKPXDw4mZjhdFeRUMH4SsGvRsA2f6wD367VgtVo+424uIBNJQqT fsthoSXBK6ln2QPA181KYQd0FRUGwC2AMD5zMCJ6z+FzWjUOLz8kp9oxB/3WUkt9BigJAcVpNTR tQG6yy33wRvo7D+BFl0CabJqrYNnB8TzIzimOwPC24oEZ6SpSk6XEE7Yhw4FmgMXkuX9YB58BMq Gly5dbccgv7fKXL5VEHo49cqLjgH81wpaX+DBgtDDKa3G4nrLQ== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--8.414400-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 671DC97ACB4F51EFCB24F9BE8DADC605E5791F49F8B4E55131C169A049362A002000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230929_192531_306231_FA955CD9 X-CRM114-Status: GOOD ( 15.77 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Ming Yen Hsieh 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 Co-developed-by: Deren Wu Signed-off-by: Deren Wu --- drivers/net/wireless/mediatek/mt76/eeprom.c | 7 ++- drivers/net/wireless/mediatek/mt76/mt76.h | 5 ++ .../net/wireless/mediatek/mt76/mt7921/init.c | 51 +++++++++++++++++++ .../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 @@ -58,6 +58,55 @@ static int mt7921_thermal_init(struct mt792x_phy *phy) return PTR_ERR_OR_ZERO(hwmon); } +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++) {