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OpenCloudOS-Kernel/drivers/hwmon/aquacomputer_d5next.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* hwmon driver for Aquacomputer devices (D5 Next, Farbwerk, Farbwerk 360, Octo,
* Quadro)
*
* 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>
#include <linux/debugfs.h>
#include <linux/hid.h>
#include <linux/hwmon.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/seq_file.h>
#include <asm/unaligned.h>
#define USB_VENDOR_ID_AQUACOMPUTER 0x0c70
#define USB_PRODUCT_ID_FARBWERK 0xf00a
#define USB_PRODUCT_ID_QUADRO 0xf00d
#define USB_PRODUCT_ID_D5NEXT 0xf00e
#define USB_PRODUCT_ID_FARBWERK360 0xf010
#define USB_PRODUCT_ID_OCTO 0xf011
enum kinds { d5next, farbwerk, farbwerk360, octo, quadro };
static const char *const aqc_device_names[] = {
[d5next] = "d5next",
[farbwerk] = "farbwerk",
[farbwerk360] = "farbwerk360",
[octo] = "octo",
[quadro] = "quadro"
};
#define DRIVER_NAME "aquacomputer_d5next"
#define STATUS_REPORT_ID 0x01
#define STATUS_UPDATE_INTERVAL (2 * HZ) /* In seconds */
#define SERIAL_FIRST_PART 3
#define SERIAL_SECOND_PART 5
#define FIRMWARE_VERSION 13
#define CTRL_REPORT_ID 0x03
/* The HID report that the official software always sends
* after writing values, currently same for all devices
*/
#define SECONDARY_CTRL_REPORT_ID 0x02
#define SECONDARY_CTRL_REPORT_SIZE 0x0B
static u8 secondary_ctrl_report[] = {
0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x34, 0xC6
};
/* Register offsets for all Aquacomputer devices */
#define AQC_TEMP_SENSOR_SIZE 0x02
#define AQC_TEMP_SENSOR_DISCONNECTED 0x7FFF
#define AQC_FAN_PERCENT_OFFSET 0x00
#define AQC_FAN_VOLTAGE_OFFSET 0x02
#define AQC_FAN_CURRENT_OFFSET 0x04
#define AQC_FAN_POWER_OFFSET 0x06
#define AQC_FAN_SPEED_OFFSET 0x08
/* Register offsets for the D5 Next pump */
#define D5NEXT_POWER_CYCLES 0x18
#define D5NEXT_COOLANT_TEMP 0x57
#define D5NEXT_NUM_FANS 2
#define D5NEXT_NUM_SENSORS 1
#define D5NEXT_PUMP_OFFSET 0x6c
#define D5NEXT_FAN_OFFSET 0x5f
#define D5NEXT_5V_VOLTAGE 0x39
#define D5NEXT_12V_VOLTAGE 0x37
#define D5NEXT_CTRL_REPORT_SIZE 0x329
static u8 d5next_sensor_fan_offsets[] = { D5NEXT_PUMP_OFFSET, D5NEXT_FAN_OFFSET };
/* Pump and fan speed registers in D5 Next control report (from 0-100%) */
static u16 d5next_ctrl_fan_offsets[] = { 0x97, 0x42 };
/* Register offsets for the Farbwerk RGB controller */
#define FARBWERK_NUM_SENSORS 4
#define FARBWERK_SENSOR_START 0x2f
/* Register offsets for the Farbwerk 360 RGB controller */
#define FARBWERK360_NUM_SENSORS 4
#define FARBWERK360_SENSOR_START 0x32
/* Register offsets for the Octo fan controller */
#define OCTO_POWER_CYCLES 0x18
#define OCTO_NUM_FANS 8
#define OCTO_NUM_SENSORS 4
#define OCTO_SENSOR_START 0x3D
#define OCTO_CTRL_REPORT_SIZE 0x65F
static u8 octo_sensor_fan_offsets[] = { 0x7D, 0x8A, 0x97, 0xA4, 0xB1, 0xBE, 0xCB, 0xD8 };
/* Fan speed registers in Octo control report (from 0-100%) */
static u16 octo_ctrl_fan_offsets[] = { 0x5B, 0xB0, 0x105, 0x15A, 0x1AF, 0x204, 0x259, 0x2AE };
/* Register offsets for the Quadro fan controller */
#define QUADRO_POWER_CYCLES 0x18
#define QUADRO_NUM_FANS 4
#define QUADRO_NUM_SENSORS 4
#define QUADRO_SENSOR_START 0x34
#define QUADRO_CTRL_REPORT_SIZE 0x3c1
#define QUADRO_FLOW_SENSOR_OFFSET 0x6e
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[] = { 0x36, 0x8b, 0xe0, 0x135 };
/* Labels for D5 Next */
static const char *const label_d5next_temp[] = {
"Coolant temp"
};
static const char *const label_d5next_speeds[] = {
"Pump speed",
"Fan speed"
};
static const char *const label_d5next_power[] = {
"Pump power",
"Fan power"
};
static const char *const label_d5next_voltages[] = {
"Pump voltage",
"Fan voltage",
"+5V voltage",
"+12V voltage"
};
static const char *const label_d5next_current[] = {
"Pump current",
"Fan current"
};
/* Labels for Farbwerk, Farbwerk 360 and Octo and Quadro temperature sensors */
static const char *const label_temp_sensors[] = {
"Sensor 1",
"Sensor 2",
"Sensor 3",
"Sensor 4"
};
/* Labels for Octo and Quadro (except speed) */
static const char *const label_fan_speed[] = {
"Fan 1 speed",
"Fan 2 speed",
"Fan 3 speed",
"Fan 4 speed",
"Fan 5 speed",
"Fan 6 speed",
"Fan 7 speed",
"Fan 8 speed"
};
static const char *const label_fan_power[] = {
"Fan 1 power",
"Fan 2 power",
"Fan 3 power",
"Fan 4 power",
"Fan 5 power",
"Fan 6 power",
"Fan 7 power",
"Fan 8 power"
};
static const char *const label_fan_voltage[] = {
"Fan 1 voltage",
"Fan 2 voltage",
"Fan 3 voltage",
"Fan 4 voltage",
"Fan 5 voltage",
"Fan 6 voltage",
"Fan 7 voltage",
"Fan 8 voltage"
};
static const char *const label_fan_current[] = {
"Fan 1 current",
"Fan 2 current",
"Fan 3 current",
"Fan 4 current",
"Fan 5 current",
"Fan 6 current",
"Fan 7 current",
"Fan 8 current"
};
/* Labels for Quadro fan speeds */
static const char *const label_quadro_speeds[] = {
"Fan 1 speed",
"Fan 2 speed",
"Fan 3 speed",
"Fan 4 speed",
"Flow speed [dL/h]"
};
struct aqc_data {
struct hid_device *hdev;
struct device *hwmon_dev;
struct dentry *debugfs;
struct mutex mutex; /* Used for locking access when reading and writing PWM values */
enum kinds kind;
const char *name;
int buffer_size;
u8 *buffer;
int checksum_start;
int checksum_length;
int checksum_offset;
int num_fans;
u8 *fan_sensor_offsets;
u16 *fan_ctrl_offsets;
int num_temp_sensors;
int temp_sensor_start_offset;
u16 power_cycle_count_offset;
u8 flow_sensor_offset;
/* General info, same across all devices */
u32 serial_number[2];
u16 firmware_version;
/* How many times the device was powered on, if available */
u32 power_cycles;
/* Sensor values */
s32 temp_input[4];
u16 speed_input[8];
u32 power_input[8];
u16 voltage_input[8];
u16 current_input[8];
/* Label values */
const char *const *temp_label;
const char *const *speed_label;
const char *const *power_label;
const char *const *voltage_label;
const char *const *current_label;
unsigned long updated;
};
/* Converts from centi-percent */
static int aqc_percent_to_pwm(u16 val)
{
return DIV_ROUND_CLOSEST(val * 255, 100 * 100);
}
/* Converts to centi-percent */
static int aqc_pwm_to_percent(long val)
{
if (val < 0 || val > 255)
return -EINVAL;
return DIV_ROUND_CLOSEST(val * 100 * 100, 255);
}
/* Expects the mutex to be locked */
static int aqc_get_ctrl_data(struct aqc_data *priv)
{
int ret;
memset(priv->buffer, 0x00, priv->buffer_size);
ret = hid_hw_raw_request(priv->hdev, CTRL_REPORT_ID, priv->buffer, priv->buffer_size,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0)
ret = -ENODATA;
return ret;
}
/* Expects the mutex to be locked */
static int aqc_send_ctrl_data(struct aqc_data *priv)
{
int ret;
u16 checksum;
/* Init and xorout value for CRC-16/USB is 0xffff */
checksum = crc16(0xffff, priv->buffer + priv->checksum_start, priv->checksum_length);
checksum ^= 0xffff;
/* Place the new checksum at the end of the report */
put_unaligned_be16(checksum, priv->buffer + priv->checksum_offset);
/* Send the patched up report back to the device */
ret = hid_hw_raw_request(priv->hdev, CTRL_REPORT_ID, priv->buffer, priv->buffer_size,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret < 0)
return ret;
/* The official software sends this report after every change, so do it here as well */
ret = hid_hw_raw_request(priv->hdev, SECONDARY_CTRL_REPORT_ID, secondary_ctrl_report,
SECONDARY_CTRL_REPORT_SIZE, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
return ret;
}
/* Refreshes the control buffer and returns value at offset */
static int aqc_get_ctrl_val(struct aqc_data *priv, int offset)
{
int ret;
mutex_lock(&priv->mutex);
ret = aqc_get_ctrl_data(priv);
if (ret < 0)
goto unlock_and_return;
ret = get_unaligned_be16(priv->buffer + offset);
unlock_and_return:
mutex_unlock(&priv->mutex);
return ret;
}
static int aqc_set_ctrl_val(struct aqc_data *priv, int offset, long val)
{
int ret;
mutex_lock(&priv->mutex);
ret = aqc_get_ctrl_data(priv);
if (ret < 0)
goto unlock_and_return;
put_unaligned_be16((u16)val, priv->buffer + offset);
ret = aqc_send_ctrl_data(priv);
unlock_and_return:
mutex_unlock(&priv->mutex);
return ret;
}
static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr, int channel)
{
const struct aqc_data *priv = data;
switch (type) {
case hwmon_temp:
if (channel < priv->num_temp_sensors)
return 0444;
break;
case hwmon_pwm:
if (priv->fan_ctrl_offsets && channel < priv->num_fans) {
switch (attr) {
case hwmon_pwm_input:
return 0644;
default:
break;
}
}
break;
case hwmon_fan:
switch (priv->kind) {
case quadro:
/* Special case to support flow sensor */
if (channel < priv->num_fans + 1)
return 0444;
break;
default:
if (channel < priv->num_fans)
return 0444;
break;
}
break;
case hwmon_power:
case hwmon_curr:
if (channel < priv->num_fans)
return 0444;
break;
case hwmon_in:
switch (priv->kind) {
case d5next:
/* Special case to support +5V and +12V voltage sensors */
if (channel < priv->num_fans + 2)
return 0444;
break;
default:
if (channel < priv->num_fans)
return 0444;
break;
}
break;
default:
break;
}
return 0;
}
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;
switch (type) {
case hwmon_temp:
if (priv->temp_input[channel] == -ENODATA)
return -ENODATA;
*val = priv->temp_input[channel];
break;
case hwmon_fan:
*val = priv->speed_input[channel];
break;
case hwmon_power:
*val = priv->power_input[channel];
break;
case hwmon_pwm:
if (priv->fan_ctrl_offsets) {
ret = aqc_get_ctrl_val(priv, priv->fan_ctrl_offsets[channel]);
if (ret < 0)
return ret;
*val = aqc_percent_to_pwm(ret);
}
break;
case hwmon_in:
*val = priv->voltage_input[channel];
break;
case hwmon_curr:
*val = priv->current_input[channel];
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int aqc_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr,
int channel, const char **str)
{
struct aqc_data *priv = dev_get_drvdata(dev);
switch (type) {
case hwmon_temp:
*str = priv->temp_label[channel];
break;
case hwmon_fan:
*str = priv->speed_label[channel];
break;
case hwmon_power:
*str = priv->power_label[channel];
break;
case hwmon_in:
*str = priv->voltage_label[channel];
break;
case hwmon_curr:
*str = priv->current_label[channel];
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int aqc_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
long val)
{
int ret, pwm_value;
struct aqc_data *priv = dev_get_drvdata(dev);
switch (type) {
case hwmon_pwm:
switch (attr) {
case hwmon_pwm_input:
if (priv->fan_ctrl_offsets) {
pwm_value = aqc_pwm_to_percent(val);
if (pwm_value < 0)
return pwm_value;
ret = aqc_set_ctrl_val(priv, priv->fan_ctrl_offsets[channel],
pwm_value);
if (ret < 0)
return ret;
}
break;
default:
break;
}
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static const struct hwmon_ops aqc_hwmon_ops = {
.is_visible = aqc_is_visible,
.read = aqc_read,
.read_string = aqc_read_string,
.write = aqc_write
};
static const struct hwmon_channel_info *aqc_info[] = {
HWMON_CHANNEL_INFO(temp,
HWMON_T_INPUT | HWMON_T_LABEL,
HWMON_T_INPUT | HWMON_T_LABEL,
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_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL,
HWMON_F_INPUT | HWMON_F_LABEL),
HWMON_CHANNEL_INFO(power,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL),
HWMON_CHANNEL_INFO(pwm,
HWMON_PWM_INPUT,
HWMON_PWM_INPUT,
HWMON_PWM_INPUT,
HWMON_PWM_INPUT,
HWMON_PWM_INPUT,
HWMON_PWM_INPUT,
HWMON_PWM_INPUT,
HWMON_PWM_INPUT),
HWMON_CHANNEL_INFO(in,
HWMON_I_INPUT | HWMON_I_LABEL,
HWMON_I_INPUT | HWMON_I_LABEL,
HWMON_I_INPUT | HWMON_I_LABEL,
HWMON_I_INPUT | HWMON_I_LABEL,
HWMON_I_INPUT | HWMON_I_LABEL,
HWMON_I_INPUT | HWMON_I_LABEL,
HWMON_I_INPUT | HWMON_I_LABEL,
HWMON_I_INPUT | HWMON_I_LABEL),
HWMON_CHANNEL_INFO(curr,
HWMON_C_INPUT | HWMON_C_LABEL,
HWMON_C_INPUT | HWMON_C_LABEL,
HWMON_C_INPUT | HWMON_C_LABEL,
HWMON_C_INPUT | HWMON_C_LABEL,
HWMON_C_INPUT | HWMON_C_LABEL,
HWMON_C_INPUT | HWMON_C_LABEL,
HWMON_C_INPUT | HWMON_C_LABEL,
HWMON_C_INPUT | HWMON_C_LABEL),
NULL
};
static const struct hwmon_chip_info aqc_chip_info = {
.ops = &aqc_hwmon_ops,
.info = aqc_info,
};
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;
if (report->id != STATUS_REPORT_ID)
return 0;
priv = hid_get_drvdata(hdev);
/* Info provided with every report */
priv->serial_number[0] = get_unaligned_be16(data + SERIAL_FIRST_PART);
priv->serial_number[1] = get_unaligned_be16(data + SERIAL_SECOND_PART);
priv->firmware_version = get_unaligned_be16(data + FIRMWARE_VERSION);
/* Temperature sensor readings */
for (i = 0; i < priv->num_temp_sensors; i++) {
sensor_value = get_unaligned_be16(data +
priv->temp_sensor_start_offset +
i * AQC_TEMP_SENSOR_SIZE);
if (sensor_value == AQC_TEMP_SENSOR_DISCONNECTED)
priv->temp_input[i] = -ENODATA;
else
priv->temp_input[i] = sensor_value * 10;
}
/* Fan speed and related readings */
for (i = 0; i < priv->num_fans; i++) {
priv->speed_input[i] =
get_unaligned_be16(data + priv->fan_sensor_offsets[i] + AQC_FAN_SPEED_OFFSET);
priv->power_input[i] =
get_unaligned_be16(data + priv->fan_sensor_offsets[i] +
AQC_FAN_POWER_OFFSET) * 10000;
priv->voltage_input[i] =
get_unaligned_be16(data + priv->fan_sensor_offsets[i] +
AQC_FAN_VOLTAGE_OFFSET) * 10;
priv->current_input[i] =
get_unaligned_be16(data + priv->fan_sensor_offsets[i] + AQC_FAN_CURRENT_OFFSET);
}
if (priv->power_cycle_count_offset != 0)
priv->power_cycles = get_unaligned_be32(data + priv->power_cycle_count_offset);
/* Special-case sensor readings */
switch (priv->kind) {
case d5next:
priv->voltage_input[2] = get_unaligned_be16(data + D5NEXT_5V_VOLTAGE) * 10;
priv->voltage_input[3] = get_unaligned_be16(data + D5NEXT_12V_VOLTAGE) * 10;
break;
case quadro:
priv->speed_input[4] = get_unaligned_be16(data + priv->flow_sensor_offset);
break;
default:
break;
}
priv->updated = jiffies;
return 0;
}
#ifdef CONFIG_DEBUG_FS
static int serial_number_show(struct seq_file *seqf, void *unused)
{
struct aqc_data *priv = seqf->private;
seq_printf(seqf, "%05u-%05u\n", priv->serial_number[0], priv->serial_number[1]);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(serial_number);
static int firmware_version_show(struct seq_file *seqf, void *unused)
{
struct aqc_data *priv = seqf->private;
seq_printf(seqf, "%u\n", priv->firmware_version);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(firmware_version);
static int power_cycles_show(struct seq_file *seqf, void *unused)
{
struct aqc_data *priv = seqf->private;
seq_printf(seqf, "%u\n", priv->power_cycles);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(power_cycles);
static void aqc_debugfs_init(struct aqc_data *priv)
{
char name[64];
scnprintf(name, sizeof(name), "%s_%s-%s", "aquacomputer", priv->name,
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->power_cycle_count_offset != 0)
debugfs_create_file("power_cycles", 0444, priv->debugfs, priv, &power_cycles_fops);
}
#else
static void aqc_debugfs_init(struct aqc_data *priv)
{
}
#endif
static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct aqc_data *priv;
int ret;
priv = devm_kzalloc(&hdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->hdev = hdev;
hid_set_drvdata(hdev, priv);
priv->updated = jiffies - STATUS_UPDATE_INTERVAL;
ret = hid_parse(hdev);
if (ret)
return ret;
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret)
return ret;
ret = hid_hw_open(hdev);
if (ret)
goto fail_and_stop;
switch (hdev->product) {
case USB_PRODUCT_ID_D5NEXT:
priv->kind = d5next;
priv->num_fans = D5NEXT_NUM_FANS;
priv->fan_sensor_offsets = d5next_sensor_fan_offsets;
priv->fan_ctrl_offsets = d5next_ctrl_fan_offsets;
priv->num_temp_sensors = D5NEXT_NUM_SENSORS;
priv->temp_sensor_start_offset = D5NEXT_COOLANT_TEMP;
priv->power_cycle_count_offset = D5NEXT_POWER_CYCLES;
priv->buffer_size = D5NEXT_CTRL_REPORT_SIZE;
priv->temp_label = label_d5next_temp;
priv->speed_label = label_d5next_speeds;
priv->power_label = label_d5next_power;
priv->voltage_label = label_d5next_voltages;
priv->current_label = label_d5next_current;
break;
case USB_PRODUCT_ID_FARBWERK:
priv->kind = farbwerk;
priv->num_fans = 0;
priv->num_temp_sensors = FARBWERK_NUM_SENSORS;
priv->temp_sensor_start_offset = FARBWERK_SENSOR_START;
priv->temp_label = label_temp_sensors;
break;
case USB_PRODUCT_ID_FARBWERK360:
priv->kind = farbwerk360;
priv->num_fans = 0;
priv->num_temp_sensors = FARBWERK360_NUM_SENSORS;
priv->temp_sensor_start_offset = FARBWERK360_SENSOR_START;
priv->temp_label = label_temp_sensors;
break;
case USB_PRODUCT_ID_OCTO:
priv->kind = octo;
priv->num_fans = OCTO_NUM_FANS;
priv->fan_sensor_offsets = octo_sensor_fan_offsets;
priv->fan_ctrl_offsets = octo_ctrl_fan_offsets;
priv->num_temp_sensors = OCTO_NUM_SENSORS;
priv->temp_sensor_start_offset = OCTO_SENSOR_START;
priv->power_cycle_count_offset = OCTO_POWER_CYCLES;
priv->buffer_size = OCTO_CTRL_REPORT_SIZE;
priv->temp_label = label_temp_sensors;
priv->speed_label = label_fan_speed;
priv->power_label = label_fan_power;
priv->voltage_label = label_fan_voltage;
priv->current_label = label_fan_current;
break;
case USB_PRODUCT_ID_QUADRO:
priv->kind = quadro;
priv->num_fans = QUADRO_NUM_FANS;
priv->fan_sensor_offsets = quadro_sensor_fan_offsets;
priv->fan_ctrl_offsets = quadro_ctrl_fan_offsets;
priv->num_temp_sensors = QUADRO_NUM_SENSORS;
priv->temp_sensor_start_offset = QUADRO_SENSOR_START;
priv->power_cycle_count_offset = QUADRO_POWER_CYCLES;
priv->buffer_size = QUADRO_CTRL_REPORT_SIZE;
priv->flow_sensor_offset = QUADRO_FLOW_SENSOR_OFFSET;
priv->temp_label = label_temp_sensors;
priv->speed_label = label_quadro_speeds;
priv->power_label = label_fan_power;
priv->voltage_label = label_fan_voltage;
priv->current_label = label_fan_current;
break;
default:
break;
}
if (priv->buffer_size != 0) {
priv->checksum_start = 0x01;
priv->checksum_length = priv->buffer_size - 3;
priv->checksum_offset = priv->buffer_size - 2;
}
priv->name = aqc_device_names[priv->kind];
priv->buffer = devm_kzalloc(&hdev->dev, priv->buffer_size, GFP_KERNEL);
if (!priv->buffer) {
ret = -ENOMEM;
goto fail_and_close;
}
mutex_init(&priv->mutex);
priv->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, priv->name, priv,
&aqc_chip_info, NULL);
if (IS_ERR(priv->hwmon_dev)) {
ret = PTR_ERR(priv->hwmon_dev);
goto fail_and_close;
}
aqc_debugfs_init(priv);
return 0;
fail_and_close:
hid_hw_close(hdev);
fail_and_stop:
hid_hw_stop(hdev);
return ret;
}
static void aqc_remove(struct hid_device *hdev)
{
struct aqc_data *priv = hid_get_drvdata(hdev);
debugfs_remove_recursive(priv->debugfs);
hwmon_device_unregister(priv->hwmon_dev);
hid_hw_close(hdev);
hid_hw_stop(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) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_QUADRO) },
{ }
};
MODULE_DEVICE_TABLE(hid, aqc_table);
static struct hid_driver aqc_driver = {
.name = DRIVER_NAME,
.id_table = aqc_table,
.probe = aqc_probe,
.remove = aqc_remove,
.raw_event = aqc_raw_event,
};
static int __init aqc_init(void)
{
return hid_register_driver(&aqc_driver);
}
static void __exit aqc_exit(void)
{
hid_unregister_driver(&aqc_driver);
}
/* Request to initialize after the HID bus to ensure it's not being loaded before */
late_initcall(aqc_init);
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");
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