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hwmon: (aquacomputer_d5next) Add support for Aquacomputer Poweradjust 3 

Extend aquacomputer_d5next driver to expose the temp sensor of the
Aquacomputer Poweradjust 3 fan controller, which communicates
through a proprietary USB HID protocol.

The Poweradjust 3 is not currently known to expose firmware version
and serial number, so don't create debugfs entries if their values
can't be retrieved.

Tested by a user on Github [1].

[1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/issues/57

Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20230131101210.8095-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Aleksa Savic 2023-01-31 11:12:09 +01:00 committed by Guenter Roeck
parent 1c999af509
commit e0f6c370f0
2 changed files with 84 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/hwmon/aquacomputer_d5next.rst
View File

@ -12,6 +12,7 @@ Supported devices:
* Aquacomputer Octo fan controller
* Aquacomputer Quadro fan controller
* Aquacomputer High Flow Next sensor
* Aquacomputer Poweradjust 3 fan controller
Author: Aleksa Savic
@ -53,6 +54,8 @@ The High Flow Next exposes +5V voltages, water quality, conductivity and flow re
A temperature sensor can be connected to it, in which case it provides its reading
and an estimation of the dissipated/absorbed power in the liquid cooling loop.
The Poweradjust 3 controller exposes a single external temperature sensor.
Depending on the device, not all sysfs and debugfs entries will be available.
Writing to virtual temperature sensors is not currently supported.

88
drivers/hwmon/aquacomputer_d5next.c
View File

@ -4,7 +4,8 @@
* Quadro, High Flow Next, Aquaero)
*
* Aquacomputer devices send HID reports (with ID 0x01) every second to report
* sensor values.
* sensor values, except for devices that communicate through the
* legacy way (currently, Poweradjust 3).
*
* Copyright 2021 Aleksa Savic <savicaleksa83@gmail.com>
* Copyright 2022 Jack Doan <me@jackdoan.com>
@ -28,8 +29,9 @@
#define USB_PRODUCT_ID_FARBWERK360 0xf010
#define USB_PRODUCT_ID_OCTO 0xf011
#define USB_PRODUCT_ID_HIGHFLOWNEXT 0xf012
#define USB_PRODUCT_ID_POWERADJUST3 0xf0bd
enum kinds { d5next, farbwerk, farbwerk360, octo, quadro, highflownext, aquaero };
enum kinds { d5next, farbwerk, farbwerk360, octo, quadro, highflownext, aquaero, poweradjust3 };
static const char *const aqc_device_names[] = {
[d5next] = "d5next",
@ -38,7 +40,8 @@ static const char *const aqc_device_names[] = {
[octo] = "octo",
[quadro] = "quadro",
[highflownext] = "highflownext",
[aquaero] = "aquaero"
[aquaero] = "aquaero",
[poweradjust3] = "poweradjust3"
};
#define DRIVER_NAME "aquacomputer_d5next"
@ -59,6 +62,9 @@ static u8 secondary_ctrl_report[] = {
0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x34, 0xC6
};
/* Report IDs for legacy devices */
#define POWERADJUST3_STATUS_REPORT_ID 0x03
/* Info, sensor sizes and offsets for most Aquacomputer devices */
#define AQC_SERIAL_START 0x3
#define AQC_FIRMWARE_VERSION 0xD
@ -176,6 +182,13 @@ static u16 quadro_ctrl_fan_offsets[] = { 0x37, 0x8c, 0xe1, 0x136 }; /* Fan speed
#define HIGHFLOWNEXT_5V_VOLTAGE 97
#define HIGHFLOWNEXT_5V_VOLTAGE_USB 99
/* Specs of the Poweradjust 3 */
#define POWERADJUST3_NUM_SENSORS 1
#define POWERADJUST3_SENSOR_REPORT_SIZE 0x32
/* Sensor report offsets for the Poweradjust 3 */
#define POWERADJUST3_SENSOR_START 0x03
/* Labels for D5 Next */
static const char *const label_d5next_temp[] = {
"Coolant temp"
@ -326,6 +339,11 @@ static const char *const label_highflownext_voltage[] = {
"+5V USB voltage"
};
/* Labels for Poweradjust 3 */
static const char *const label_poweradjust3_temp_sensors[] = {
"External sensor"
};
struct aqc_fan_structure_offsets {
u8 voltage;
u8 curr;
@ -357,6 +375,8 @@ struct aqc_data {
enum kinds kind;
const char *name;
int status_report_id; /* Used for legacy devices, report is stored in buffer */
int buffer_size;
u8 *buffer;
int checksum_start;
@ -615,14 +635,49 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
return 0;
}
/* Read device sensors by manually requesting the sensor report (legacy way) */
static int aqc_legacy_read(struct aqc_data *priv)
{
int ret, i, sensor_value;
mutex_lock(&priv->mutex);
memset(priv->buffer, 0x00, priv->buffer_size);
ret = hid_hw_raw_request(priv->hdev, priv->status_report_id, priv->buffer,
priv->buffer_size, HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0)
goto unlock_and_return;
/* Temperature sensor readings */
for (i = 0; i < priv->num_temp_sensors; i++) {
sensor_value = get_unaligned_le16(priv->buffer + priv->temp_sensor_start_offset +
i * AQC_SENSOR_SIZE);
priv->temp_input[i] = sensor_value * 10;
}
priv->updated = jiffies;
unlock_and_return:
mutex_unlock(&priv->mutex);
return ret;
}
static int aqc_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
int channel, long *val)
{
int ret;
struct aqc_data *priv = dev_get_drvdata(dev);
if (time_after(jiffies, priv->updated + STATUS_UPDATE_INTERVAL))
return -ENODATA;
if (time_after(jiffies, priv->updated + STATUS_UPDATE_INTERVAL)) {
if (priv->status_report_id != 0) {
/* Legacy devices require manual reads */
ret = aqc_legacy_read(priv);
if (ret < 0)
return -ENODATA;
} else {
return -ENODATA;
}
}
switch (type) {
case hwmon_temp:
@ -1014,9 +1069,13 @@ static void aqc_debugfs_init(struct aqc_data *priv)
dev_name(&priv->hdev->dev));
priv->debugfs = debugfs_create_dir(name, NULL);
debugfs_create_file("serial_number", 0444, priv->debugfs, priv, &serial_number_fops);
debugfs_create_file("firmware_version", 0444, priv->debugfs, priv, &firmware_version_fops);
if (priv->serial_number_start_offset != 0)
debugfs_create_file("serial_number", 0444, priv->debugfs, priv,
&serial_number_fops);
if (priv->firmware_version_offset != 0)
debugfs_create_file("firmware_version", 0444, priv->debugfs, priv,
&firmware_version_fops);
if (priv->power_cycle_count_offset != 0)
debugfs_create_file("power_cycles", 0444, priv->debugfs, priv, &power_cycles_fops);
}
@ -1214,6 +1273,17 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
priv->power_label = label_highflownext_power;
priv->voltage_label = label_highflownext_voltage;
break;
case USB_PRODUCT_ID_POWERADJUST3:
priv->kind = poweradjust3;
priv->num_fans = 0;
priv->num_temp_sensors = POWERADJUST3_NUM_SENSORS;
priv->temp_sensor_start_offset = POWERADJUST3_SENSOR_START;
priv->buffer_size = POWERADJUST3_SENSOR_REPORT_SIZE;
priv->temp_label = label_poweradjust3_temp_sensors;
break;
default:
break;
}
@ -1225,6 +1295,9 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
priv->fan_structure = &aqc_aquaero_fan_structure;
break;
case poweradjust3:
priv->status_report_id = POWERADJUST3_STATUS_REPORT_ID;
break;
default:
priv->serial_number_start_offset = AQC_SERIAL_START;
priv->firmware_version_offset = AQC_FIRMWARE_VERSION;
@ -1287,6 +1360,7 @@ static const struct hid_device_id aqc_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_OCTO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_QUADRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_HIGHFLOWNEXT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_POWERADJUST3) },
{ }
};