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hwmon: (aquacomputer_d5next) Add support for Aquacomputer High Flow Next

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Extend aquacomputer_d5next driver to expose various hardware
sensors of the Aquacomputer High Flow Next flow sensor, which
communicates through a proprietary USB HID protocol.

The High Flow Next exposes +5V voltages, water quality, conductivity
and flow readings. 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.

Additionally, serial number and firmware version are exposed through
debugfs.

Registry offsets were discovered and tested by users on Github [1] [2].

[1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/issues/8
[2] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/34

Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20220907100739.806571-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Aleksa Savic 2022-09-07 12:07:39 +02:00 committed by Guenter Roeck
parent 856361b397
commit aed80bb91d
3 changed files with 96 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/hwmon/aquacomputer_d5next.rst
View File

@ -10,6 +10,7 @@ Supported devices:
* Aquacomputer Farbwerk 360 RGB controller
* Aquacomputer Octo fan controller
* Aquacomputer Quadro fan controller
* Aquacomputer High Flow Next sensor
Author: Aleksa Savic
@ -43,6 +44,10 @@ voltage and current.
The Farbwerk and Farbwerk 360 expose four temperature sensors. Additionally,
sixteen virtual temperature sensors of the Farbwerk 360 are exposed.
The High Flow Next exposes +5V voltages, water quality, conductivity and flow readings.
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.
Depending on the device, not all sysfs and debugfs entries will be available.
Writing to virtual temperature sensors is not currently supported.

6
drivers/hwmon/Kconfig
View File

@ -257,14 +257,14 @@ config SENSORS_AHT10
will be called aht10.
config SENSORS_AQUACOMPUTER_D5NEXT
tristate "Aquacomputer D5 Next, Octo, Quadro, Farbwerk, and Farbwerk 360"
tristate "Aquacomputer D5 Next, Octo, Quadro, Farbwerk, Farbwerk 360, High Flow Next"
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 and Quadro fan
controllers, Farbwerk and Farbwerk 360 RGB controllers, where
available.
controllers, Farbwerk and Farbwerk 360 RGB controllers, High Flow
Next sensor, where available.
This driver can also be built as a module. If so, the module
will be called aquacomputer_d5next.

91
drivers/hwmon/aquacomputer_d5next.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* hwmon driver for Aquacomputer devices (D5 Next, Farbwerk, Farbwerk 360, Octo,
* Quadro)
* Quadro, High Flow Next)
*
* Aquacomputer devices send HID reports (with ID 0x01) every second to report
* sensor values.
@ -26,15 +26,17 @@
#define USB_PRODUCT_ID_D5NEXT 0xf00e
#define USB_PRODUCT_ID_FARBWERK360 0xf010
#define USB_PRODUCT_ID_OCTO 0xf011
#define USB_PRODUCT_ID_HIGHFLOWNEXT 0xf012
enum kinds { d5next, farbwerk, farbwerk360, octo, quadro };
enum kinds { d5next, farbwerk, farbwerk360, octo, quadro, highflownext };
static const char *const aqc_device_names[] = {
[d5next] = "d5next",
[farbwerk] = "farbwerk",
[farbwerk360] = "farbwerk360",
[octo] = "octo",
[quadro] = "quadro"
[quadro] = "quadro",
[highflownext] = "highflownext"
};
#define DRIVER_NAME "aquacomputer_d5next"
@ -120,6 +122,16 @@ static u8 quadro_sensor_fan_offsets[] = { 0x70, 0x7D, 0x8A, 0x97 };
/* Fan speed registers in Quadro control report (from 0-100%) */
static u16 quadro_ctrl_fan_offsets[] = { 0x37, 0x8c, 0xe1, 0x136 };
/* Register offsets for the High Flow Next */
#define HIGHFLOWNEXT_NUM_SENSORS 2
#define HIGHFLOWNEXT_SENSOR_START 85
#define HIGHFLOWNEXT_FLOW 81
#define HIGHFLOWNEXT_WATER_QUALITY 89
#define HIGHFLOWNEXT_POWER 91
#define HIGHFLOWNEXT_CONDUCTIVITY 95
#define HIGHFLOWNEXT_5V_VOLTAGE 97
#define HIGHFLOWNEXT_5V_VOLTAGE_USB 99
/* Labels for D5 Next */
static const char *const label_d5next_temp[] = {
"Coolant temp"
@ -228,6 +240,27 @@ static const char *const label_quadro_speeds[] = {
"Flow speed [dL/h]"
};
/* Labels for High Flow Next */
static const char *const label_highflownext_temp_sensors[] = {
"Coolant temp",
"External sensor"
};
static const char *const label_highflownext_fan_speed[] = {
"Flow [dL/h]",
"Water quality [%]",
"Conductivity [nS/cm]",
};
static const char *const label_highflownext_power[] = {
"Dissipated power",
};
static const char *const label_highflownext_voltage[] = {
"+5V voltage",
"+5V USB voltage"
};
struct aqc_data {
struct hid_device *hdev;
struct device *hwmon_dev;
@ -390,6 +423,11 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
break;
case hwmon_fan:
switch (priv->kind) {
case highflownext:
/* Special case to support flow sensor, water quality and conductivity */
if (channel < 3)
return 0444;
break;
case quadro:
/* Special case to support flow sensor */
if (channel < priv->num_fans + 1)
@ -402,6 +440,18 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
}
break;
case hwmon_power:
switch (priv->kind) {
case highflownext:
/* Special case to support one power sensor */
if (channel == 0)
return 0444;
break;
default:
if (channel < priv->num_fans)
return 0444;
break;
}
break;
case hwmon_curr:
if (channel < priv->num_fans)
return 0444;
@ -413,6 +463,11 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
if (channel < priv->num_fans + 2)
return 0444;
break;
case highflownext:
/* Special case to support two voltage sensors */
if (channel < 2)
return 0444;
break;
default:
if (channel < priv->num_fans)
return 0444;
@ -679,6 +734,22 @@ static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8
case quadro:
priv->speed_input[4] = get_unaligned_be16(data + priv->flow_sensor_offset);
break;
case highflownext:
/* If external temp sensor is not connected, its power reading is also N/A */
if (priv->temp_input[1] == -ENODATA)
priv->power_input[0] = -ENODATA;
else
priv->power_input[0] =
get_unaligned_be16(data + HIGHFLOWNEXT_POWER) * 1000000;
priv->voltage_input[0] = get_unaligned_be16(data + HIGHFLOWNEXT_5V_VOLTAGE) * 10;
priv->voltage_input[1] =
get_unaligned_be16(data + HIGHFLOWNEXT_5V_VOLTAGE_USB) * 10;
priv->speed_input[0] = get_unaligned_be16(data + HIGHFLOWNEXT_FLOW);
priv->speed_input[1] = get_unaligned_be16(data + HIGHFLOWNEXT_WATER_QUALITY);
priv->speed_input[2] = get_unaligned_be16(data + HIGHFLOWNEXT_CONDUCTIVITY);
break;
default:
break;
}
@ -851,6 +922,19 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
priv->voltage_label = label_fan_voltage;
priv->current_label = label_fan_current;
break;
case USB_PRODUCT_ID_HIGHFLOWNEXT:
priv->kind = highflownext;
priv->num_fans = 0;
priv->num_temp_sensors = HIGHFLOWNEXT_NUM_SENSORS;
priv->temp_sensor_start_offset = HIGHFLOWNEXT_SENSOR_START;
priv->power_cycle_count_offset = QUADRO_POWER_CYCLES;
priv->temp_label = label_highflownext_temp_sensors;
priv->speed_label = label_highflownext_fan_speed;
priv->power_label = label_highflownext_power;
priv->voltage_label = label_highflownext_voltage;
break;
default:
break;
}
@ -907,6 +991,7 @@ static const struct hid_device_id aqc_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_FARBWERK360) },
{ 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) },
{ }
};