Commit d0450fc1 authored by Leonard Anderweit's avatar Leonard Anderweit Committed by Guenter Roeck
Browse files

hwmon: (aquacomputer_d5next) Support one byte control values 



Add support for one byte control values. This extends aqc_set_ctrl_val()
and aqc_get_ctrl_val() with a type. Currently supported types are AQC_8
(one byte) and AQC_BE16 (two bytes big endian). More types will be added
in the future.

Signed-off-by: default avatarLeonard Anderweit <leonard.anderweit@gmail.com>
Link: https://lore.kernel.org/r/20230214220221.15003-2-leonard.anderweit@gmail.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 90b86248

drivers/hwmon/aquacomputer_d5next.c

+38 −10
Original line number Diff line number Diff line
@@ -70,6 +70,10 @@ static u8 secondary_ctrl_report[] = { 
/* Report IDs for legacy devices */

#define POWERADJUST3_STATUS_REPORT_ID	0x03



/* Data types for reading and writing control reports */

#define AQC_8		0

#define AQC_BE16	1



/* Info, sensor sizes and offsets for most Aquacomputer devices */

#define AQC_SERIAL_START		0x3

#define AQC_FIRMWARE_VERSION		0xD
@@ -544,7 +548,7 @@ static int aqc_send_ctrl_data(struct aqc_data *priv) 
}



/* Refreshes the control buffer and stores value at offset in val */

static int aqc_get_ctrl_val(struct aqc_data *priv, int offset, long *val)

static int aqc_get_ctrl_val(struct aqc_data *priv, int offset, long *val, int type)

{

	int ret;
@@ -554,14 +558,23 @@ static int aqc_get_ctrl_val(struct aqc_data *priv, int offset, long *val) 
	if (ret < 0)

		goto unlock_and_return;



	switch (type) {

	case AQC_BE16:

		*val = (s16)get_unaligned_be16(priv->buffer + offset);

		break;

	case AQC_8:

		*val = priv->buffer[offset];

		break;

	default:

		ret = -EINVAL;

	}



unlock_and_return:

	mutex_unlock(&priv->mutex);

	return ret;

}



static int aqc_set_ctrl_val(struct aqc_data *priv, int offset, long val)

static int aqc_set_ctrl_val(struct aqc_data *priv, int offset, long val, int type)

{

	int ret;
@@ -571,7 +584,19 @@ static int aqc_set_ctrl_val(struct aqc_data *priv, int offset, long val) 
	if (ret < 0)

		goto unlock_and_return;



	switch (type) {

	case AQC_BE16:

		put_unaligned_be16((s16)val, priv->buffer + offset);

		break;

	case AQC_8:

		priv->buffer[offset] = (u8)val;

		break;

	default:

		ret = -EINVAL;

	}



	if (ret < 0)

		goto unlock_and_return;



	ret = aqc_send_ctrl_data(priv);
@@ -775,7 +800,7 @@ static int aqc_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
		case hwmon_temp_offset:

			ret =

			    aqc_get_ctrl_val(priv, priv->temp_ctrl_offset +

					     channel * AQC_SENSOR_SIZE, val);

					     channel * AQC_SENSOR_SIZE, val, AQC_BE16);

			if (ret < 0)

				return ret;
@@ -791,7 +816,8 @@ static int aqc_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
			*val = priv->speed_input[channel];

			break;

		case hwmon_fan_pulses:

			ret = aqc_get_ctrl_val(priv, priv->flow_pulses_ctrl_offset, val);

			ret = aqc_get_ctrl_val(priv, priv->flow_pulses_ctrl_offset,

					       val, AQC_BE16);

			if (ret < 0)

				return ret;

			break;
@@ -804,7 +830,8 @@ static int aqc_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
		break;

	case hwmon_pwm:

		if (priv->fan_ctrl_offsets) {

			ret = aqc_get_ctrl_val(priv, priv->fan_ctrl_offsets[channel], val);

			ret = aqc_get_ctrl_val(priv, priv->fan_ctrl_offsets[channel],

					       val, AQC_BE16);

			if (ret < 0)

				return ret;
@@ -877,7 +904,7 @@ static int aqc_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
			val = clamp_val(val, -15000, 15000) / 10;

			ret =

			    aqc_set_ctrl_val(priv, priv->temp_ctrl_offset +

					     channel * AQC_SENSOR_SIZE, val);

					     channel * AQC_SENSOR_SIZE, val, AQC_BE16);

			if (ret < 0)

				return ret;

			break;
@@ -889,7 +916,8 @@ static int aqc_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
		switch (attr) {

		case hwmon_fan_pulses:

			val = clamp_val(val, 10, 1000);

			ret = aqc_set_ctrl_val(priv, priv->flow_pulses_ctrl_offset, val);

			ret = aqc_set_ctrl_val(priv, priv->flow_pulses_ctrl_offset,

					       val, AQC_BE16);

			if (ret < 0)

				return ret;

			break;
@@ -906,7 +934,7 @@ static int aqc_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
					return pwm_value;



				ret = aqc_set_ctrl_val(priv, priv->fan_ctrl_offsets[channel],

						       pwm_value);

						       pwm_value, AQC_BE16);

				if (ret < 0)

					return ret;

			}