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#pragma once
#include "interface.hpp"
#include "sysfs.hpp"
namespace hwmon
{
/**
* @class FanSpeed
* @brief Target fan speed control implementation
* @details Derived FanSpeedObject type that writes the target value to sysfs
* which in turn sets the fan speed to that target value
*/
class FanSpeed : public FanSpeedObject
{
public:
/**
* @brief Constructs FanSpeed Object
*
* @param[in] instancePath - The hwmon instance path
* (ex. /sys/class/hwmon/hwmon1)
* @param[in] devPath - The /sys/devices sysfs path
* @param[in] id - The hwmon id
* @param[in] bus - Dbus bus object
* @param[in] objPath - Dbus object path
* @param[in] defer - Dbus object registration defer
* @param[in] target - initial target speed value
*/
FanSpeed(const std::string& instancePath,
const std::string& devPath,
const std::string& id,
sdbusplus::bus::bus& bus,
const char* objPath,
bool defer,
uint64_t target) : FanSpeedObject(bus, objPath, defer),
id(id),
ioAccess(instancePath),
devPath(devPath)
{
FanSpeedObject::target(target);
}
/**
* @brief Set the value of target
*
* @return Value of target
*/
uint64_t target(uint64_t value) override;
/**
* @brief Writes the pwm_enable sysfs entry if the
* env var with the value to write is present
*/
void enable();
private:
/** @brief hwmon type */
static constexpr auto type = "fan";
/** @brief hwmon id */
std::string id;
/** @brief Hwmon sysfs access. */
sysfs::hwmonio::HwmonIO ioAccess;
/** @brief Physical device path. */
std::string devPath;
};
} // namespace hwmon
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