linux/drivers/gpu/drm/nouveau/nouveau_hwmon.c

/*
 * Copyright 2010 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */

#ifdef CONFIG_ACPI
#include <linux/acpi.h>
#endif
#include <linux/power_supply.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>

#include "nouveau_drv.h"
#include "nouveau_hwmon.h"

#include <nvkm/subdev/iccsense.h>
#include <nvkm/subdev/volt.h>

#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))

static ssize_t
nouveau_hwmon_show_temp1_auto_point1_pwm(struct device *d,
					 struct device_attribute *a, char *buf)
{ … }
static SENSOR_DEVICE_ATTR(temp1_auto_point1_pwm, 0444,
			  nouveau_hwmon_show_temp1_auto_point1_pwm, NULL, 0);

static ssize_t
nouveau_hwmon_temp1_auto_point1_temp(struct device *d,
				     struct device_attribute *a, char *buf)
{ … }
static ssize_t
nouveau_hwmon_set_temp1_auto_point1_temp(struct device *d,
					 struct device_attribute *a,
					 const char *buf, size_t count)
{ … }
static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, 0644,
			  nouveau_hwmon_temp1_auto_point1_temp,
			  nouveau_hwmon_set_temp1_auto_point1_temp, 0);

static ssize_t
nouveau_hwmon_temp1_auto_point1_temp_hyst(struct device *d,
					  struct device_attribute *a, char *buf)
{ … }
static ssize_t
nouveau_hwmon_set_temp1_auto_point1_temp_hyst(struct device *d,
					      struct device_attribute *a,
					      const char *buf, size_t count)
{ … }
static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp_hyst, 0644,
			  nouveau_hwmon_temp1_auto_point1_temp_hyst,
			  nouveau_hwmon_set_temp1_auto_point1_temp_hyst, 0);

static ssize_t
nouveau_hwmon_get_pwm1_max(struct device *d,
			   struct device_attribute *a, char *buf)
{ … }

static ssize_t
nouveau_hwmon_get_pwm1_min(struct device *d,
			   struct device_attribute *a, char *buf)
{ … }

static ssize_t
nouveau_hwmon_set_pwm1_min(struct device *d, struct device_attribute *a,
			   const char *buf, size_t count)
{ … }
static SENSOR_DEVICE_ATTR(pwm1_min, 0644,
			  nouveau_hwmon_get_pwm1_min,
			  nouveau_hwmon_set_pwm1_min, 0);

static ssize_t
nouveau_hwmon_set_pwm1_max(struct device *d, struct device_attribute *a,
			   const char *buf, size_t count)
{ … }
static SENSOR_DEVICE_ATTR(pwm1_max, 0644,
			  nouveau_hwmon_get_pwm1_max,
			  nouveau_hwmon_set_pwm1_max, 0);

static struct attribute *pwm_fan_sensor_attrs[] = …;
static const struct attribute_group pwm_fan_sensor_group = …;

static struct attribute *temp1_auto_point_sensor_attrs[] = …;
static const struct attribute_group temp1_auto_point_sensor_group = …;

#define N_ATTR_GROUPS …

static const struct hwmon_channel_info * const nouveau_info[] = …;

static umode_t
nouveau_chip_is_visible(const void *data, u32 attr, int channel)
{ … }

static umode_t
nouveau_power_is_visible(const void *data, u32 attr, int channel)
{ … }

static umode_t
nouveau_temp_is_visible(const void *data, u32 attr, int channel)
{ … }

static umode_t
nouveau_pwm_is_visible(const void *data, u32 attr, int channel)
{ … }

static umode_t
nouveau_input_is_visible(const void *data, u32 attr, int channel)
{ … }

static umode_t
nouveau_fan_is_visible(const void *data, u32 attr, int channel)
{ … }

static int
nouveau_chip_read(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int
nouveau_temp_read(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int
nouveau_fan_read(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int
nouveau_in_read(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int
nouveau_pwm_read(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int
nouveau_power_read(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int
nouveau_temp_write(struct device *dev, u32 attr, int channel, long val)
{ … }

static int
nouveau_pwm_write(struct device *dev, u32 attr, int channel, long val)
{ … }

static umode_t
nouveau_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr,
			int channel)
{ … }

static const char input_label[] = …;

static int
nouveau_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr,
		    int channel, const char **buf)
{ … }

static int
nouveau_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
							int channel, long *val)
{ … }

static int
nouveau_write(struct device *dev, enum hwmon_sensor_types type, u32 attr,
							int channel, long val)
{ … }

static const struct hwmon_ops nouveau_hwmon_ops = …;

static const struct hwmon_chip_info nouveau_chip_info = …;
#endif

int
nouveau_hwmon_init(struct drm_device *dev)
{ … }

void
nouveau_hwmon_fini(struct drm_device *dev)
{ … }