+#define ACER_PREDATOR_V4_SENSOR_INDEX_BIT_MASK GENMASK_ULL(15, 8)
+#define ACER_PREDATOR_V4_SENSOR_READING_BIT_MASK GENMASK_ULL(23, 8)
+#define ACER_PREDATOR_V4_SUPPORTED_SENSORS_BIT_MASK GENMASK_ULL(39, 24)
/*
* Acer ACPI method GUIDs
@@ -99,9 +103,17 @@ enum acer_wmi_event_ids {
};
enum acer_wmi_predator_v4_sys_info_command {
- ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS = 0x02,
- ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED = 0x0201,
- ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED = 0x0601,
+ ACER_WMID_CMD_GET_PREDATOR_V4_SUPPORTED_SENSORS = 0x0000,
+ ACER_WMID_CMD_GET_PREDATOR_V4_SENSOR_READING = 0x0001,
+ ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS = 0x0002,
+};
+
+enum acer_wmi_predator_v4_sensor_id {
+ ACER_WMID_SENSOR_CPU_TEMPERATURE = 0x01,
+ ACER_WMID_SENSOR_CPU_FAN_SPEED = 0x02,
+ ACER_WMID_SENSOR_EXTERNAL_TEMPERATURE_2 = 0x03,
+ ACER_WMID_SENSOR_GPU_FAN_SPEED = 0x06,
+ ACER_WMID_SENSOR_GPU_TEMPERATURE = 0x0A,
};
static const struct key_entry acer_wmi_keymap[] __initconst = {
@@ -272,6 +284,7 @@ static u16 commun_func_bitmap;
static u8 commun_fn_key_number;
static bool cycle_gaming_thermal_profile = true;
static bool predator_v4;
+static u64 supported_sensors;
module_param(mailled, int, 0444);
module_param(brightness, int, 0444);
@@ -1779,27 +1792,6 @@ static int acer_gsensor_event(void)
return 0;
}
-static int acer_get_fan_speed(int fan)
-{
- u64 fanspeed;
- u32 command;
- int ret;
-
- if (!quirks->predator_v4)
- return -EOPNOTSUPP;
-
- if (fan == 0)
- command = ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED;
- else
- command = ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED;
-
- ret = WMID_gaming_get_sys_info(command, &fanspeed);
- if (ret < 0)
- return ret;
-
- return FIELD_GET(ACER_PREDATOR_V4_FAN_SPEED_READ_BIT_MASK, fanspeed);
-}
-
/*
* Predator series turbo button
*/
@@ -2688,43 +2680,86 @@ static void __init create_debugfs(void)
&interface->debug.wmid_devices);
}
+static const enum acer_wmi_predator_v4_sensor_id acer_wmi_temp_channel_to_sensor_id[] = {
+ [0] = ACER_WMID_SENSOR_CPU_TEMPERATURE,
+ [1] = ACER_WMID_SENSOR_GPU_TEMPERATURE,
+ [2] = ACER_WMID_SENSOR_EXTERNAL_TEMPERATURE_2,
+};
+
+static const enum acer_wmi_predator_v4_sensor_id acer_wmi_fan_channel_to_sensor_id[] = {
+ [0] = ACER_WMID_SENSOR_CPU_FAN_SPEED,
+ [1] = ACER_WMID_SENSOR_GPU_FAN_SPEED,
+};
+
static umode_t acer_wmi_hwmon_is_visible(const void *data,
enum hwmon_sensor_types type, u32 attr,
int channel)
{
+ enum acer_wmi_predator_v4_sensor_id sensor_id;
+ const u64 *supported_sensors = data;
+
switch (type) {
+ case hwmon_temp:
+ sensor_id = acer_wmi_temp_channel_to_sensor_id[channel];
+ break;
case hwmon_fan:
- if (acer_get_fan_speed(channel) >= 0)
- return 0444;
+ sensor_id = acer_wmi_fan_channel_to_sensor_id[channel];
break;
default:
return 0;
}
+ if (*supported_sensors & BIT(sensor_id - 1))
+ return 0444;
+
return 0;
}
static int acer_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *val)
{
+ u64 command = ACER_WMID_CMD_GET_PREDATOR_V4_SENSOR_READING;
+ u64 result;
int ret;
switch (type) {
+ case hwmon_temp:
+ command |= FIELD_PREP(ACER_PREDATOR_V4_SENSOR_INDEX_BIT_MASK,
+ acer_wmi_temp_channel_to_sensor_id[channel]);
+
+ ret = WMID_gaming_get_sys_info(command, &result);
+ if (ret < 0)
+ return ret;
+
+ result = FIELD_GET(ACER_PREDATOR_V4_SENSOR_READING_BIT_MASK, result);
+ *val = result * MILLIDEGREE_PER_DEGREE;
+ return 0;
case hwmon_fan:
- ret = acer_get_fan_speed(channel);
+ command |= FIELD_PREP(ACER_PREDATOR_V4_SENSOR_INDEX_BIT_MASK,
+ acer_wmi_fan_channel_to_sensor_id[channel]);
+
+ ret = WMID_gaming_get_sys_info(command, &result);
if (ret < 0)
return ret;
- *val = ret;
- break;
+
+ *val = FIELD_GET(ACER_PREDATOR_V4_SENSOR_READING_BIT_MASK, result);
+ return 0;
default:
return -EOPNOTSUPP;
}
-
- return 0;
}
static const struct hwmon_channel_info *const acer_wmi_hwmon_info[] = {
- HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT), NULL
+ HWMON_CHANNEL_INFO(temp,
+ HWMON_T_INPUT,
+ HWMON_T_INPUT,
+ HWMON_T_INPUT
+ ),
+ HWMON_CHANNEL_INFO(fan,
+ HWMON_F_INPUT,
+ HWMON_F_INPUT
+ ),
+ NULL
};
static const struct hwmon_ops acer_wmi_hwmon_ops = {
@@ -2741,9 +2776,20 @@ static int acer_wmi_hwmon_init(void)
{
struct device *dev = &acer_platform_device->dev;
struct device *hwmon;
+ u64 result;
+ int ret;
+
+ ret = WMID_gaming_get_sys_info(ACER_WMID_CMD_GET_PREDATOR_V4_SUPPORTED_SENSORS, &result);
+ if (ret < 0)
+ return ret;
+
+ /* Return early if no sensors are available */
+ supported_sensors = FIELD_GET(ACER_PREDATOR_V4_SUPPORTED_SENSORS_BIT_MASK, result);
+ if (!supported_sensors)
+ return 0;
hwmon = devm_hwmon_device_register_with_info(dev, "acer",
- &acer_platform_driver,
+ &supported_sensors,
&acer_wmi_hwmon_chip_info,
NULL);
--
2.39.5
