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hwmon: (aquacomputer_d5next) Add support for Aquacomputer Leakshield
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Extend aquacomputer_d5next driver to expose various hardware sensors of the
Aquacomputer Leakshield leak prevention system, which communicates
through a proprietary USB HID protocol. Implemented by Noah Bergbauer [1].

Two temperature sensors are exposed, along with pressure (current, min, max
and target), reservoir volume (total and filled), pump speed and flow. Pump
speed and flow values are user provided and allow the Leakshield to optimize
its operation. Writing them to the device is subject of future patches.

[1] #41

Originally-by: Noah Bergbauer <[email protected]>
Signed-off-by: Aleksa Savic <[email protected]>
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aleksamagicka committed Apr 18, 2023
1 parent 839eb1d commit baddb2c
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Showing 2 changed files with 116 additions and 6 deletions.
113 changes: 107 additions & 6 deletions aquacomputer_d5next.c
Original file line number Diff line number Diff line change
Expand Up @@ -29,14 +29,15 @@
#define USB_PRODUCT_ID_FARBWERK360 0xf010
#define USB_PRODUCT_ID_OCTO 0xf011
#define USB_PRODUCT_ID_HIGHFLOWNEXT 0xf012
#define USB_PRODUCT_ID_LEAKSHIELD 0xf014
#define USB_PRODUCT_ID_AQUASTREAMXT 0xf0b6
#define USB_PRODUCT_ID_AQUASTREAMULT 0xf00b
#define USB_PRODUCT_ID_POWERADJUST3 0xf0bd

enum kinds {
d5next, farbwerk, farbwerk360, octo, quadro,
highflownext, aquaero, poweradjust3, aquastreamult,
aquastreamxt
aquastreamxt, leakshield
};

static const char *const aqc_device_names[] = {
Expand All @@ -46,6 +47,7 @@ static const char *const aqc_device_names[] = {
[octo] = "octo",
[quadro] = "quadro",
[highflownext] = "highflownext",
[leakshield] = "leakshield",
[aquastreamxt] = "aquastreamxt",
[aquaero] = "aquaero",
[aquastreamult] = "aquastreamultimate",
Expand Down Expand Up @@ -93,7 +95,7 @@ static u8 aquaero_secondary_ctrl_report[] = {
#define AQC_FIRMWARE_VERSION 0xD

#define AQC_SENSOR_SIZE 0x02
#define AQC_TEMP_SENSOR_DISCONNECTED 0x7FFF
#define AQC_SENSOR_NA 0x7FFF
#define AQC_FAN_PERCENT_OFFSET 0x00
#define AQC_FAN_VOLTAGE_OFFSET 0x02
#define AQC_FAN_CURRENT_OFFSET 0x04
Expand Down Expand Up @@ -236,6 +238,21 @@ 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 Leakshield */
#define LEAKSHIELD_NUM_SENSORS 2

/* Sensor report offsets for Leakshield */
#define LEAKSHIELD_PRESSURE_ADJUSTED 285
#define LEAKSHIELD_TEMPERATURE_1 265
#define LEAKSHIELD_TEMPERATURE_2 287
#define LEAKSHIELD_PRESSURE_MIN 291
#define LEAKSHIELD_PRESSURE_TARGET 293
#define LEAKSHIELD_PRESSURE_MAX 295
#define LEAKSHIELD_PUMP_RPM_IN 101
#define LEAKSHIELD_FLOW_IN 111
#define LEAKSHIELD_RESERVOIR_VOLUME 313
#define LEAKSHIELD_RESERVOIR_FILLED 311

/* Specs of the Aquastream XT pump */
#define AQUASTREAMXT_SERIAL_START 0x3a
#define AQUASTREAMXT_FIRMWARE_VERSION 0x32
Expand Down Expand Up @@ -411,6 +428,20 @@ static const char *const label_highflownext_voltage[] = {
"+5V USB voltage"
};

/* Labels for Leakshield */
static const char *const label_leakshield_temp_sensors[] = {
"Temperature 1",
"Temperature 2"
};

static const char *const label_leakshield_fan_speed[] = {
"Pressure [ubar]",
"User-Provided Pump Speed",
"User-Provided Flow [dL/h]",
"Reservoir Volume [ml]",
"Reservoir Filled [ml]",
};

/* Labels for Aquastream XT */
static const char *const label_aquastreamxt_temp_sensors[] = {
"Fan IC temp",
Expand Down Expand Up @@ -530,6 +561,9 @@ struct aqc_data {
/* Sensor values */
s32 temp_input[20]; /* Max 4 physical and 16 virtual or 8 physical and 12 virtual */
u16 speed_input[8];
u32 speed_input_min[1];
u32 speed_input_target[1];
u32 speed_input_max[1];
u32 power_input[8];
u16 voltage_input[8];
u16 current_input[8];
Expand Down Expand Up @@ -747,6 +781,11 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
if (channel < 3)
return 0444;
break;
case leakshield:
/* Special case for Leakshield sensors */
if (channel < 5)
return 0444;
break;
case aquaero:
case quadro:
/* Special case to support flow sensors */
Expand All @@ -764,6 +803,13 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
if (priv->kind == quadro && channel == priv->num_fans)
return 0644;
break;
case hwmon_fan_min:
case hwmon_fan_max:
case hwmon_fan_target:
/* Special case for Leakshield pressure sensor */
if (priv->kind == leakshield && channel == 0)
return 0444;
break;
default:
break;
}
Expand Down Expand Up @@ -938,8 +984,20 @@ static int aqc_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
case hwmon_fan:
switch (attr) {
case hwmon_fan_input:
if (priv->speed_input[channel] == -ENODATA)
return -ENODATA;

*val = priv->speed_input[channel];
break;
case hwmon_fan_min:
*val = priv->speed_input_min[channel];
break;
case hwmon_fan_max:
*val = priv->speed_input_max[channel];
break;
case hwmon_fan_target:
*val = priv->speed_input_target[channel];
break;
case hwmon_fan_pulses:
ret = aqc_get_ctrl_val(priv, priv->flow_pulses_ctrl_offset,
val, AQC_BE16);
Expand Down Expand Up @@ -1151,7 +1209,8 @@ static const struct hwmon_channel_info *aqc_info[] = {
HWMON_T_INPUT | HWMON_T_LABEL,
HWMON_T_INPUT | HWMON_T_LABEL),
HWMON_CHANNEL_INFO(fan,
HWMON_F_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MIN | HWMON_F_MAX |
HWMON_F_TARGET,
HWMON_F_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL,
Expand Down Expand Up @@ -1224,7 +1283,7 @@ static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8
sensor_value = get_unaligned_be16(data +
priv->temp_sensor_start_offset +
i * AQC_SENSOR_SIZE);
if (sensor_value == AQC_TEMP_SENSOR_DISCONNECTED)
if (sensor_value == AQC_SENSOR_NA)
priv->temp_input[i] = -ENODATA;
else
priv->temp_input[i] = sensor_value * 10;
Expand All @@ -1235,7 +1294,7 @@ static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8
sensor_value = get_unaligned_be16(data +
priv->virtual_temp_sensor_start_offset +
j * AQC_SENSOR_SIZE);
if (sensor_value == AQC_TEMP_SENSOR_DISCONNECTED)
if (sensor_value == AQC_SENSOR_NA)
priv->temp_input[i] = -ENODATA;
else
priv->temp_input[i] = sensor_value * 10;
Expand Down Expand Up @@ -1277,7 +1336,7 @@ static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8
sensor_value = get_unaligned_be16(data +
priv->calc_virt_temp_sensor_start_offset +
j * AQC_SENSOR_SIZE);
if (sensor_value == AQC_TEMP_SENSOR_DISCONNECTED)
if (sensor_value == AQC_SENSOR_NA)
priv->temp_input[i] = -ENODATA;
else
priv->temp_input[i] = sensor_value * 10;
Expand Down Expand Up @@ -1314,6 +1373,28 @@ static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8
priv->speed_input[1] = get_unaligned_be16(data + HIGHFLOWNEXT_WATER_QUALITY);
priv->speed_input[2] = get_unaligned_be16(data + HIGHFLOWNEXT_CONDUCTIVITY);
break;
case leakshield:
priv->speed_input[0] =
((s16)get_unaligned_be16(data + LEAKSHIELD_PRESSURE_ADJUSTED)) * 100;
priv->speed_input_min[0] = get_unaligned_be16(data + LEAKSHIELD_PRESSURE_MIN) * 100;
priv->speed_input_target[0] =
get_unaligned_be16(data + LEAKSHIELD_PRESSURE_TARGET) * 100;
priv->speed_input_max[0] = get_unaligned_be16(data + LEAKSHIELD_PRESSURE_MAX) * 100;

priv->speed_input[1] = get_unaligned_be16(data + LEAKSHIELD_PUMP_RPM_IN);
if (priv->speed_input[1] == AQC_SENSOR_NA)
priv->speed_input[1] = -ENODATA;

priv->speed_input[2] = get_unaligned_be16(data + LEAKSHIELD_FLOW_IN);
if (priv->speed_input[2] == AQC_SENSOR_NA)
priv->speed_input[2] = -ENODATA;

priv->speed_input[3] = get_unaligned_be16(data + LEAKSHIELD_RESERVOIR_VOLUME);
priv->speed_input[4] = get_unaligned_be16(data + LEAKSHIELD_RESERVOIR_FILLED);

/* Second temp sensor is not positioned after the first one, read it here */
priv->temp_input[1] = get_unaligned_be16(data + LEAKSHIELD_TEMPERATURE_2) * 10;
break;
default:
break;
}
Expand Down Expand Up @@ -1571,6 +1652,25 @@ 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_LEAKSHIELD:
/*
* Choose the right Leakshield device, because
* the other one acts as a keyboard
*/
if (hdev->type != 2) {
ret = -ENODEV;
goto fail_and_close;
}

priv->kind = leakshield;

priv->num_fans = 0;
priv->num_temp_sensors = LEAKSHIELD_NUM_SENSORS;
priv->temp_sensor_start_offset = LEAKSHIELD_TEMPERATURE_1;

priv->temp_label = label_leakshield_temp_sensors;
priv->speed_label = label_leakshield_fan_speed;
break;
case USB_PRODUCT_ID_AQUASTREAMXT:
priv->kind = aquastreamxt;

Expand Down Expand Up @@ -1707,6 +1807,7 @@ 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_LEAKSHIELD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_AQUASTREAMXT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_AQUASTREAMULT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_POWERADJUST3) },
Expand Down
9 changes: 9 additions & 0 deletions docs/aquacomputer_d5next.rst
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ Supported devices:
* Aquacomputer Octo fan controller
* Aquacomputer Quadro fan controller
* Aquacomputer High Flow Next sensor
* Aquacomputer Leakshield leak prevention system
* Aquacomputer Aquastream XT watercooling pump
* Aquacomputer Aquastream Ultimate watercooling pump
* Aquacomputer Poweradjust 3 fan controller
Expand Down Expand Up @@ -57,6 +58,11 @@ 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 Leakshield exposes two temperature sensors and coolant pressure (current, min, max and
target readings). It also exposes the estimated reservoir volume and how much of it is
filled with coolant. Pump RPM and flow can be set to enhance on-device calculations,
but this is not yet implemented here.

The Aquastream XT pump exposes temperature readings for the coolant, external sensor
and fan IC. It also exposes pump and fan speeds (in RPM), voltages, as well as pump
current.
Expand All @@ -83,6 +89,9 @@ Sysfs entries
temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius)
temp[1-8]_offset Temperature sensor correction offset (in millidegrees Celsius)
fan[1-8]_input Pump/fan speed (in RPM) / Flow speed (in dL/h)
fan[1-4]_min Minimal fan speed (in RPM)
fan[1-4]_max Maximal fan speed (in RPM)
fan1_target Target fan speed (in RPM)
fan5_pulses Quadro flow sensor pulses
power[1-8]_input Pump/fan power (in micro Watts)
in[0-7]_input Pump/fan voltage (in milli Volts)
Expand Down

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