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hwmon: (aquacomputer_d5next) Add support for Aquacomputer Farbwerk 

Extend aquacomputer_d5next driver to expose hardware
temperature sensors of the Aquacomputer Farbwerk RGB controller, which
communicates through a proprietary USB HID protocol.

Four temperature sensors are available. Additionally, serial number and
firmware version are exposed through debugfs.

Also, add Jack Doan to MAINTAINERS for this driver.

Signed-off-by: Jack Doan <me@jackdoan.com>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/YmTcrq8Gzel0zYYD@jackdesk
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Jack Doan 2022-04-24 00:14:22 -05:00 коммит произвёл Guenter Roeck
Родитель c8e5e37a60
Коммит 229b159c50
4 изменённых файлов: 38 добавлений и 8 удалений
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3
Documentation/hwmon/aquacomputer_d5next.rst
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@ -6,6 +6,7 @@ Kernel driver aquacomputer-d5next
Supported devices:
* Aquacomputer D5 Next watercooling pump
* Aquacomputer Farbwerk RGB controller
* Aquacomputer Farbwerk 360 RGB controller
* Aquacomputer Octo fan controller
@ -32,7 +33,7 @@ better suited for userspace tools.
The Octo exposes four temperature sensors and eight PWM controllable fans, along
with their speed (in RPM), power, voltage and current.
The Farbwerk 360 exposes four temperature sensors. Depending on the device,
The Farbwerk and Farbwerk 360 expose four temperature sensors. Depending on the device,
not all sysfs and debugfs entries will be available.
Usage notes

1
MAINTAINERS
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@ -1447,6 +1447,7 @@ F: drivers/media/i2c/aptina-pll.*
AQUACOMPUTER D5 NEXT PUMP SENSOR DRIVER
M: Aleksa Savic <savicaleksa83@gmail.com>
M: Jack Doan <me@jackdoan.com>
L: linux-hwmon@vger.kernel.org
S: Maintained
F: Documentation/hwmon/aquacomputer_d5next.rst

5
drivers/hwmon/Kconfig
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@ -256,13 +256,14 @@ config SENSORS_AHT10
will be called aht10.
config SENSORS_AQUACOMPUTER_D5NEXT
tristate "Aquacomputer D5 Next, Octo and Farbwerk 360"
tristate "Aquacomputer D5 Next, Octo, Farbwerk, and Farbwerk 360"
depends on USB_HID
select CRC16
help
If you say yes here you get support for sensors and fans of
the Aquacomputer D5 Next watercooling pump, Octo fan
controller and Farbwerk 360 RGB controller, where available.
controller, Farbwerk and Farbwerk 360 RGB controllers, where
available.
This driver can also be built as a module. If so, the module
will be called aquacomputer_d5next.

37
drivers/hwmon/aquacomputer_d5next.c
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@ -1,11 +1,12 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* hwmon driver for Aquacomputer devices (D5 Next, Farbwerk 360, Octo)
* hwmon driver for Aquacomputer devices (D5 Next, Farbwerk, Farbwerk 360, Octo)
*
* Aquacomputer devices send HID reports (with ID 0x01) every second to report
* sensor values.
*
* Copyright 2021 Aleksa Savic <savicaleksa83@gmail.com>
* Copyright 2022 Jack Doan <me@jackdoan.com>
*/
#include <linux/crc16.h>
@ -19,14 +20,16 @@
#include <asm/unaligned.h>
#define USB_VENDOR_ID_AQUACOMPUTER 0x0c70
#define USB_PRODUCT_ID_FARBWERK 0xf00a
#define USB_PRODUCT_ID_D5NEXT 0xf00e
#define USB_PRODUCT_ID_FARBWERK360 0xf010
#define USB_PRODUCT_ID_OCTO 0xf011
enum kinds { d5next, farbwerk360, octo };
enum kinds { d5next, farbwerk, farbwerk360, octo };
static const char *const aqc_device_names[] = {
[d5next] = "d5next",
[farbwerk] = "farbwerk",
[farbwerk360] = "farbwerk360",
[octo] = "octo"
};
@ -69,6 +72,12 @@ static u8 secondary_ctrl_report[] = {
#define D5NEXT_PUMP_CURRENT 112
#define D5NEXT_FAN_CURRENT 99
/* Register offsets for the Farbwerk RGB controller */
#define FARBWERK_NUM_SENSORS 4
#define FARBWERK_SENSOR_START 0x2f
#define FARBWERK_SENSOR_SIZE 0x02
#define FARBWERK_SENSOR_DISCONNECTED 0x7FFF
/* Register offsets for the Farbwerk 360 RGB controller */
#define FARBWERK360_NUM_SENSORS 4
#define FARBWERK360_SENSOR_START 0x32
@ -125,7 +134,7 @@ static const char *const label_d5next_current[] = {
"Fan current"
};
/* Labels for Farbwerk 360 and Octo temperature sensors */
/* Labels for Farbwerk, Farbwerk 360 and Octo temperature sensors */
static const char *const label_temp_sensors[] = {
"Sensor 1",
"Sensor 2",
@ -319,6 +328,7 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
if (channel == 0)
return 0444;
break;
case farbwerk:
case farbwerk360:
case octo:
return 0444;
@ -551,8 +561,7 @@ static const struct hwmon_chip_info aqc_chip_info = {
.info = aqc_info,
};
static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data,
int size)
static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size)
{
int i, sensor_value;
struct aqc_data *priv;
@ -587,6 +596,17 @@ static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8
priv->current_input[0] = get_unaligned_be16(data + D5NEXT_PUMP_CURRENT);
priv->current_input[1] = get_unaligned_be16(data + D5NEXT_FAN_CURRENT);
break;
case farbwerk:
/* Temperature sensor readings */
for (i = 0; i < FARBWERK_NUM_SENSORS; i++) {
sensor_value = get_unaligned_be16(data + FARBWERK_SENSOR_START +
i * FARBWERK_SENSOR_SIZE);
if (sensor_value == FARBWERK_SENSOR_DISCONNECTED)
priv->temp_input[i] = -ENODATA;
else
priv->temp_input[i] = sensor_value * 10;
}
break;
case farbwerk360:
/* Temperature sensor readings */
for (i = 0; i < FARBWERK360_NUM_SENSORS; i++) {
@ -733,6 +753,11 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
priv->voltage_label = label_d5next_voltages;
priv->current_label = label_d5next_current;
break;
case USB_PRODUCT_ID_FARBWERK:
priv->kind = farbwerk;
priv->temp_label = label_temp_sensors;
break;
case USB_PRODUCT_ID_FARBWERK360:
priv->kind = farbwerk360;
@ -795,6 +820,7 @@ static void aqc_remove(struct hid_device *hdev)
static const struct hid_device_id aqc_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_D5NEXT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_FARBWERK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_FARBWERK360) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_OCTO) },
{ }
@ -826,4 +852,5 @@ module_exit(aqc_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Aleksa Savic <savicaleksa83@gmail.com>");
MODULE_AUTHOR("Jack Doan <me@jackdoan.com>");
MODULE_DESCRIPTION("Hwmon driver for Aquacomputer devices");