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-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7915/init.c73
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7915/mcu.c80
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7915/mcu.h35
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h6
4 files changed, 194 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index ff7c38b87ed1..39f3639aa096 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -4,6 +4,7 @@
#include <linux/etherdevice.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/thermal.h>
#include "mt7915.h"
#include "mac.h"
#include "mcu.h"
@@ -65,11 +66,81 @@ static struct attribute *mt7915_hwmon_attrs[] = {
};
ATTRIBUTE_GROUPS(mt7915_hwmon);
+static int
+mt7915_thermal_get_max_throttle_state(struct thermal_cooling_device *cdev,
+ unsigned long *state)
+{
+ *state = MT7915_THERMAL_THROTTLE_MAX;
+
+ return 0;
+}
+
+static int
+mt7915_thermal_get_cur_throttle_state(struct thermal_cooling_device *cdev,
+ unsigned long *state)
+{
+ struct mt7915_phy *phy = cdev->devdata;
+
+ *state = phy->throttle_state;
+
+ return 0;
+}
+
+static int
+mt7915_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev,
+ unsigned long state)
+{
+ struct mt7915_phy *phy = cdev->devdata;
+ int ret;
+
+ if (state > MT7915_THERMAL_THROTTLE_MAX)
+ return -EINVAL;
+
+ if (state == phy->throttle_state)
+ return 0;
+
+ ret = mt7915_mcu_set_thermal_throttling(phy, state);
+ if (ret)
+ return ret;
+
+ phy->throttle_state = state;
+
+ return 0;
+}
+
+static const struct thermal_cooling_device_ops mt7915_thermal_ops = {
+ .get_max_state = mt7915_thermal_get_max_throttle_state,
+ .get_cur_state = mt7915_thermal_get_cur_throttle_state,
+ .set_cur_state = mt7915_thermal_set_cur_throttle_state,
+};
+
+static void mt7915_unregister_thermal(struct mt7915_phy *phy)
+{
+ struct wiphy *wiphy = phy->mt76->hw->wiphy;
+
+ if (!phy->cdev)
+ return;
+
+ sysfs_remove_link(&wiphy->dev.kobj, "cooling_device");
+ thermal_cooling_device_unregister(phy->cdev);
+}
+
static int mt7915_thermal_init(struct mt7915_phy *phy)
{
struct wiphy *wiphy = phy->mt76->hw->wiphy;
+ struct thermal_cooling_device *cdev;
struct device *hwmon;
+ cdev = thermal_cooling_device_register(wiphy_name(wiphy), phy,
+ &mt7915_thermal_ops);
+ if (!IS_ERR(cdev)) {
+ if (sysfs_create_link(&wiphy->dev.kobj, &cdev->device.kobj,
+ "cooling_device") < 0)
+ thermal_cooling_device_unregister(cdev);
+ else
+ phy->cdev = cdev;
+ }
+
if (!IS_REACHABLE(CONFIG_HWMON))
return 0;
@@ -709,6 +780,7 @@ static void mt7915_unregister_ext_phy(struct mt7915_dev *dev)
if (!phy)
return;
+ mt7915_unregister_thermal(phy);
mt76_unregister_phy(mphy);
ieee80211_free_hw(mphy->hw);
}
@@ -771,6 +843,7 @@ int mt7915_register_device(struct mt7915_dev *dev)
void mt7915_unregister_device(struct mt7915_dev *dev)
{
mt7915_unregister_ext_phy(dev);
+ mt7915_unregister_thermal(&dev->phy);
mt76_unregister_device(&dev->mt76);
mt7915_mcu_exit(dev);
mt7915_tx_token_put(dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index f40a2090837f..05ba45d0b3e1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -456,6 +456,24 @@ mt7915_mcu_rx_csa_notify(struct mt7915_dev *dev, struct sk_buff *skb)
}
static void
+mt7915_mcu_rx_thermal_notify(struct mt7915_dev *dev, struct sk_buff *skb)
+{
+ struct mt76_phy *mphy = &dev->mt76.phy;
+ struct mt7915_mcu_thermal_notify *t;
+ struct mt7915_phy *phy;
+
+ t = (struct mt7915_mcu_thermal_notify *)skb->data;
+ if (t->ctrl.ctrl_id != THERMAL_PROTECT_ENABLE)
+ return;
+
+ if (t->ctrl.band_idx && dev->mt76.phy2)
+ mphy = dev->mt76.phy2;
+
+ phy = (struct mt7915_phy *)mphy->priv;
+ phy->throttle_state = t->ctrl.duty.duty_cycle;
+}
+
+static void
mt7915_mcu_rx_radar_detected(struct mt7915_dev *dev, struct sk_buff *skb)
{
struct mt76_phy *mphy = &dev->mt76.phy;
@@ -645,6 +663,9 @@ mt7915_mcu_rx_ext_event(struct mt7915_dev *dev, struct sk_buff *skb)
struct mt7915_mcu_rxd *rxd = (struct mt7915_mcu_rxd *)skb->data;
switch (rxd->ext_eid) {
+ case MCU_EXT_EVENT_THERMAL_PROTECT:
+ mt7915_mcu_rx_thermal_notify(dev, skb);
+ break;
case MCU_EXT_EVENT_RDD_REPORT:
mt7915_mcu_rx_radar_detected(dev, skb);
break;
@@ -3576,6 +3597,65 @@ int mt7915_mcu_get_temperature(struct mt7915_phy *phy)
sizeof(req), true);
}
+int mt7915_mcu_set_thermal_throttling(struct mt7915_phy *phy, u8 state)
+{
+ struct mt7915_dev *dev = phy->dev;
+ struct {
+ struct mt7915_mcu_thermal_ctrl ctrl;
+
+ __le32 trigger_temp;
+ __le32 restore_temp;
+ __le16 sustain_time;
+ u8 rsv[2];
+ } __packed req = {
+ .ctrl = {
+ .band_idx = phy != &dev->phy,
+ },
+ };
+ int level;
+
+#define TRIGGER_TEMPERATURE 122
+#define RESTORE_TEMPERATURE 116
+#define SUSTAIN_PERIOD 10
+
+ if (!state) {
+ req.ctrl.ctrl_id = THERMAL_PROTECT_DISABLE;
+ goto out;
+ }
+
+ /* set duty cycle and level */
+ for (level = 0; level < 4; level++) {
+ int ret;
+
+ req.ctrl.ctrl_id = THERMAL_PROTECT_DUTY_CONFIG;
+ req.ctrl.duty.duty_level = level;
+ req.ctrl.duty.duty_cycle = state;
+ state = state * 4 / 5;
+
+ ret = mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(THERMAL_PROT),
+ &req, sizeof(req.ctrl), false);
+ if (ret)
+ return ret;
+ }
+
+ /* currently use fixed values for throttling, and would be better
+ * to implement thermal zone for dynamic trip in the long run.
+ */
+
+ /* set high-temperature trigger threshold */
+ req.ctrl.ctrl_id = THERMAL_PROTECT_ENABLE;
+ req.trigger_temp = cpu_to_le32(TRIGGER_TEMPERATURE);
+ req.restore_temp = cpu_to_le32(RESTORE_TEMPERATURE);
+ req.sustain_time = cpu_to_le16(SUSTAIN_PERIOD);
+
+out:
+ req.ctrl.type.protect_type = 1;
+ req.ctrl.type.trigger_type = 1;
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(THERMAL_PROT),
+ &req, sizeof(req), false);
+}
+
int mt7915_mcu_get_tx_rate(struct mt7915_dev *dev, u32 cmd, u16 wlan_idx)
{
struct {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index f95920d58a40..7e3432384633 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -68,6 +68,29 @@ struct mt7915_mcu_rxd {
u8 s2d_index;
};
+struct mt7915_mcu_thermal_ctrl {
+ u8 ctrl_id;
+ u8 band_idx;
+ union {
+ struct {
+ u8 protect_type; /* 1: duty admit, 2: radio off */
+ u8 trigger_type; /* 0: low, 1: high */
+ } __packed type;
+ struct {
+ u8 duty_level; /* level 0~3 */
+ u8 duty_cycle;
+ } __packed duty;
+ };
+} __packed;
+
+struct mt7915_mcu_thermal_notify {
+ struct mt7915_mcu_rxd rxd;
+
+ struct mt7915_mcu_thermal_ctrl ctrl;
+ __le32 temperature;
+ u8 rsv[8];
+} __packed;
+
struct mt7915_mcu_csa_notify {
struct mt7915_mcu_rxd rxd;
@@ -262,6 +285,7 @@ enum {
MCU_EXT_CMD_FW_LOG_2_HOST = 0x13,
MCU_EXT_CMD_TXBF_ACTION = 0x1e,
MCU_EXT_CMD_EFUSE_BUFFER_MODE = 0x21,
+ MCU_EXT_CMD_THERMAL_PROT = 0x23,
MCU_EXT_CMD_STA_REC_UPDATE = 0x25,
MCU_EXT_CMD_BSS_INFO_UPDATE = 0x26,
MCU_EXT_CMD_EDCA_UPDATE = 0x27,
@@ -1067,6 +1091,17 @@ enum {
};
enum {
+ THERMAL_PROTECT_PARAMETER_CTRL,
+ THERMAL_PROTECT_BASIC_INFO,
+ THERMAL_PROTECT_ENABLE,
+ THERMAL_PROTECT_DISABLE,
+ THERMAL_PROTECT_DUTY_CONFIG,
+ THERMAL_PROTECT_MECH_INFO,
+ THERMAL_PROTECT_DUTY_INFO,
+ THERMAL_PROTECT_STATE_ACT,
+};
+
+enum {
MT_EBF = BIT(0), /* explicit beamforming */
MT_IBF = BIT(1) /* implicit beamforming */
};
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index 3ff549577574..f3ffa907bf87 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -38,6 +38,8 @@
#define MT7915_5G_RATE_DEFAULT 0x4b /* OFDM 6M */
#define MT7915_2G_RATE_DEFAULT 0x0 /* CCK 1M */
+#define MT7915_THERMAL_THROTTLE_MAX 100
+
struct mt7915_vif;
struct mt7915_sta;
struct mt7915_dfs_pulse;
@@ -127,6 +129,9 @@ struct mt7915_phy {
struct ieee80211_vif *monitor_vif;
+ struct thermal_cooling_device *cdev;
+ u8 throttle_state;
+
u32 rxfilter;
u64 omac_mask;
@@ -357,6 +362,7 @@ int mt7915_mcu_set_radar_th(struct mt7915_dev *dev, int index,
int mt7915_mcu_apply_group_cal(struct mt7915_dev *dev);
int mt7915_mcu_apply_tx_dpd(struct mt7915_phy *phy);
int mt7915_mcu_get_temperature(struct mt7915_phy *phy);
+int mt7915_mcu_set_thermal_throttling(struct mt7915_phy *phy, u8 state);
int mt7915_mcu_get_tx_rate(struct mt7915_dev *dev, u32 cmd, u16 wlan_idx);
int mt7915_mcu_get_rx_rate(struct mt7915_phy *phy, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct rate_info *rate);
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-27 02:58:02 +0000