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Date: Thu, 29 Dec 2022 06:20:38 -0800
From: Guenter Roeck <linux@...ck-us.net>
To: Leonard Anderweit <leonard.anderweit@...il.com>
Cc: linux-hwmon@...r.kernel.org,
Aleksa Savic <savicaleksa83@...il.com>,
Jack Doan <me@...kdoan.com>, Jean Delvare <jdelvare@...e.com>,
Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] hwmon: (aquacomputer_d5next) Support sensors for
Aquacomputer Aquaero
On Sun, Dec 18, 2022 at 12:31:31PM +0100, Leonard Anderweit wrote:
> Add support for reading sensors of the Aquacomputer Aquaero 5/6 fan
> controllers. These fan controllers supports 4 fans, 8 physical
> temperature sensors, 8 virtual temperature sensors and 2 flow sensors.
> Temperature and flow sensor reading implemented by Aleksa Savic [1] [2]
> [3].
>
> [1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/31
> [2] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/51
> [3] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/55
>
> Originally-from: Aleksa Savic <savicaleksa83@...il.com>
> Signed-off-by: Leonard Anderweit <leonard.anderweit@...il.com>
Series applied to hwmon-next.
Thanks,
Guenter
> ---
> Documentation/hwmon/aquacomputer_d5next.rst | 5 +
> drivers/hwmon/aquacomputer_d5next.c | 108 ++++++++++++++++++--
> 2 files changed, 104 insertions(+), 9 deletions(-)
>
> diff --git a/Documentation/hwmon/aquacomputer_d5next.rst b/Documentation/hwmon/aquacomputer_d5next.rst
> index 637bdbc8fcad..b94ff08080bf 100644
> --- a/Documentation/hwmon/aquacomputer_d5next.rst
> +++ b/Documentation/hwmon/aquacomputer_d5next.rst
> @@ -5,6 +5,7 @@ Kernel driver aquacomputer-d5next
>
> Supported devices:
>
> +* Aquacomputer Aquaero 5/6 fan controllers
> * Aquacomputer D5 Next watercooling pump
> * Aquacomputer Farbwerk RGB controller
> * Aquacomputer Farbwerk 360 RGB controller
> @@ -20,6 +21,10 @@ Description
> This driver exposes hardware sensors of listed Aquacomputer devices, which
> communicate through proprietary USB HID protocols.
>
> +The Aquaero devices expose eight temperature sensors, eight virtual temperature
> +sensors and two flow senors. The fans expose their speed (in RPM), power,
> +voltage and current.
> +
> For the D5 Next pump, available sensors are pump and fan speed, power, voltage
> and current, as well as coolant temperature and eight virtual temp sensors. Also
> available through debugfs are the serial number, firmware version and power-on
> diff --git a/drivers/hwmon/aquacomputer_d5next.c b/drivers/hwmon/aquacomputer_d5next.c
> index d28d7079917a..0fd00cfb86c8 100644
> --- a/drivers/hwmon/aquacomputer_d5next.c
> +++ b/drivers/hwmon/aquacomputer_d5next.c
> @@ -1,7 +1,7 @@
> // SPDX-License-Identifier: GPL-2.0+
> /*
> * hwmon driver for Aquacomputer devices (D5 Next, Farbwerk, Farbwerk 360, Octo,
> - * Quadro, High Flow Next)
> + * Quadro, High Flow Next, Aquaero)
> *
> * Aquacomputer devices send HID reports (with ID 0x01) every second to report
> * sensor values.
> @@ -21,6 +21,7 @@
> #include <asm/unaligned.h>
>
> #define USB_VENDOR_ID_AQUACOMPUTER 0x0c70
> +#define USB_PRODUCT_ID_AQUAERO 0xf001
> #define USB_PRODUCT_ID_FARBWERK 0xf00a
> #define USB_PRODUCT_ID_QUADRO 0xf00d
> #define USB_PRODUCT_ID_D5NEXT 0xf00e
> @@ -28,7 +29,7 @@
> #define USB_PRODUCT_ID_OCTO 0xf011
> #define USB_PRODUCT_ID_HIGHFLOWNEXT 0xf012
>
> -enum kinds { d5next, farbwerk, farbwerk360, octo, quadro, highflownext };
> +enum kinds { d5next, farbwerk, farbwerk360, octo, quadro, highflownext, aquaero };
>
> static const char *const aqc_device_names[] = {
> [d5next] = "d5next",
> @@ -36,7 +37,8 @@ static const char *const aqc_device_names[] = {
> [farbwerk360] = "farbwerk360",
> [octo] = "octo",
> [quadro] = "quadro",
> - [highflownext] = "highflownext"
> + [highflownext] = "highflownext",
> + [aquaero] = "aquaero"
> };
>
> #define DRIVER_NAME "aquacomputer_d5next"
> @@ -57,7 +59,7 @@ static u8 secondary_ctrl_report[] = {
> 0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x34, 0xC6
> };
>
> -/* Info, sensor sizes and offsets for all Aquacomputer devices */
> +/* Info, sensor sizes and offsets for most Aquacomputer devices */
> #define AQC_SERIAL_START 0x3
> #define AQC_FIRMWARE_VERSION 0xD
>
> @@ -69,6 +71,24 @@ static u8 secondary_ctrl_report[] = {
> #define AQC_FAN_POWER_OFFSET 0x06
> #define AQC_FAN_SPEED_OFFSET 0x08
>
> +/* Specs of the Aquaero fan controllers */
> +#define AQUAERO_SERIAL_START 0x07
> +#define AQUAERO_FIRMWARE_VERSION 0x0B
> +#define AQUAERO_NUM_FANS 4
> +#define AQUAERO_NUM_SENSORS 8
> +#define AQUAERO_NUM_VIRTUAL_SENSORS 8
> +#define AQUAERO_NUM_FLOW_SENSORS 2
> +
> +/* Sensor report offsets for Aquaero fan controllers */
> +#define AQUAERO_SENSOR_START 0x65
> +#define AQUAERO_VIRTUAL_SENSOR_START 0x85
> +#define AQUAERO_FLOW_SENSORS_START 0xF9
> +#define AQUAERO_FAN_VOLTAGE_OFFSET 0x04
> +#define AQUAERO_FAN_CURRENT_OFFSET 0x06
> +#define AQUAERO_FAN_POWER_OFFSET 0x08
> +#define AQUAERO_FAN_SPEED_OFFSET 0x00
> +static u16 aquaero_sensor_fan_offsets[] = { 0x167, 0x173, 0x17f, 0x18B };
> +
> /* Specs of the D5 Next pump */
> #define D5NEXT_NUM_FANS 2
> #define D5NEXT_NUM_SENSORS 1
> @@ -181,12 +201,16 @@ static const char *const label_d5next_current[] = {
> "Fan current"
> };
>
> -/* Labels for Farbwerk, Farbwerk 360 and Octo and Quadro temperature sensors */
> +/* Labels for Aquaero, Farbwerk, Farbwerk 360 and Octo and Quadro temperature sensors */
> static const char *const label_temp_sensors[] = {
> "Sensor 1",
> "Sensor 2",
> "Sensor 3",
> - "Sensor 4"
> + "Sensor 4",
> + "Sensor 5",
> + "Sensor 6",
> + "Sensor 7",
> + "Sensor 8"
> };
>
> static const char *const label_virtual_temp_sensors[] = {
> @@ -262,6 +286,16 @@ static const char *const label_quadro_speeds[] = {
> "Flow speed [dL/h]"
> };
>
> +/* Labels for Aquaero fan speeds */
> +static const char *const label_aquaero_speeds[] = {
> + "Fan 1 speed",
> + "Fan 2 speed",
> + "Fan 3 speed",
> + "Fan 4 speed",
> + "Flow sensor 1 [dL/h]",
> + "Flow sensor 2 [dL/h]"
> +};
> +
> /* Labels for High Flow Next */
> static const char *const label_highflownext_temp_sensors[] = {
> "Coolant temp",
> @@ -290,6 +324,14 @@ struct aqc_fan_structure_offsets {
> u8 speed;
> };
>
> +/* Fan structure offsets for Aquaero */
> +static struct aqc_fan_structure_offsets aqc_aquaero_fan_structure = {
> + .voltage = AQUAERO_FAN_VOLTAGE_OFFSET,
> + .curr = AQUAERO_FAN_CURRENT_OFFSET,
> + .power = AQUAERO_FAN_POWER_OFFSET,
> + .speed = AQUAERO_FAN_SPEED_OFFSET
> +};
> +
> /* Fan structure offsets for all devices except Aquaero */
> static struct aqc_fan_structure_offsets aqc_general_fan_structure = {
> .voltage = AQC_FAN_VOLTAGE_OFFSET,
> @@ -496,6 +538,7 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
> if (channel < 3)
> return 0444;
> break;
> + case aquaero:
> case quadro:
> /* Special case to support flow sensors */
> if (channel < priv->num_fans + priv->num_flow_sensors)
> @@ -977,6 +1020,42 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
> goto fail_and_stop;
>
> switch (hdev->product) {
> + case USB_PRODUCT_ID_AQUAERO:
> + /*
> + * Aquaero presents itself as three HID devices under the same product ID:
> + * "aquaero keyboard/mouse", "aquaero System Control" and "aquaero Device",
> + * which is the one we want to communicate with. Unlike most other Aquacomputer
> + * devices, Aquaero does not return meaningful data when explicitly requested
> + * using GET_FEATURE_REPORT.
> + *
> + * The difference between "aquaero Device" and the other two is in the collections
> + * they present. The two other devices have the type of the second element in
> + * their respective collections set to 1, while the real device has it set to 0.
> + */
> + if (hdev->collection[1].type != 0) {
> + ret = -ENODEV;
> + goto fail_and_close;
> + }
> +
> + priv->kind = aquaero;
> +
> + priv->num_fans = AQUAERO_NUM_FANS;
> + priv->fan_sensor_offsets = aquaero_sensor_fan_offsets;
> +
> + priv->num_temp_sensors = AQUAERO_NUM_SENSORS;
> + priv->temp_sensor_start_offset = AQUAERO_SENSOR_START;
> + priv->num_virtual_temp_sensors = AQUAERO_NUM_VIRTUAL_SENSORS;
> + priv->virtual_temp_sensor_start_offset = AQUAERO_VIRTUAL_SENSOR_START;
> + priv->num_flow_sensors = AQUAERO_NUM_FLOW_SENSORS;
> + priv->flow_sensors_start_offset = AQUAERO_FLOW_SENSORS_START;
> +
> + priv->temp_label = label_temp_sensors;
> + priv->virtual_temp_label = label_virtual_temp_sensors;
> + priv->speed_label = label_aquaero_speeds;
> + priv->power_label = label_fan_power;
> + priv->voltage_label = label_fan_voltage;
> + priv->current_label = label_fan_current;
> + break;
> case USB_PRODUCT_ID_D5NEXT:
> priv->kind = d5next;
>
> @@ -1100,10 +1179,20 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
> break;
> }
>
> - priv->serial_number_start_offset = AQC_SERIAL_START;
> - priv->firmware_version_offset = AQC_FIRMWARE_VERSION;
> + switch (priv->kind) {
> + case aquaero:
> + priv->serial_number_start_offset = AQUAERO_SERIAL_START;
> + priv->firmware_version_offset = AQUAERO_FIRMWARE_VERSION;
> +
> + priv->fan_structure = &aqc_aquaero_fan_structure;
> + break;
> + default:
> + priv->serial_number_start_offset = AQC_SERIAL_START;
> + priv->firmware_version_offset = AQC_FIRMWARE_VERSION;
>
> - priv->fan_structure = &aqc_general_fan_structure;
> + priv->fan_structure = &aqc_general_fan_structure;
> + break;
> + }
>
> if (priv->buffer_size != 0) {
> priv->checksum_start = 0x01;
> @@ -1152,6 +1241,7 @@ 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_AQUAERO) },
> { 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) },
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