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#pragma once
#include "sysfs.hpp"
#include <fstream>
#include <sdbusplus/bus.hpp>
#include <sdbusplus/server/object.hpp>
#include <string>
#include <xyz/openbmc_project/Led/Physical/server.hpp>
namespace phosphor
{
namespace led
{
/** @brief De-assert value */
constexpr unsigned long DEASSERT = 0;
/** @class Physical
* @brief Responsible for applying actions on a particular physical LED
*/
class Physical : public sdbusplus::server::object::object<
sdbusplus::xyz::openbmc_project::Led::server::Physical>
{
public:
Physical() = delete;
~Physical() = default;
Physical(const Physical&) = delete;
Physical& operator=(const Physical&) = delete;
Physical(Physical&&) = delete;
Physical& operator=(Physical&&) = delete;
/** @brief Constructs LED object. Argument 'true' says that we hold off
* from sending the signals since we need to do some house keeping and
* only when we finish that, we are considered active and can then
* broadcast the signal.
*
* @param[in] bus - system dbus handler
* @param[in] objPath - The Dbus path that hosts physical LED
* @param[in] ledPath - sysfs path where this LED is exported
*/
Physical(sdbusplus::bus::bus& bus, const std::string& objPath,
SysfsLed& led) :
sdbusplus::server::object::object<
sdbusplus::xyz::openbmc_project::Led::server::Physical>(
bus, objPath.c_str(), true),
led(led)
{
// Suppose this is getting launched as part of BMC reboot, then we
// need to save what the micro-controller currently has.
setInitialState();
// We are now ready.
emit_object_added();
}
/** @brief Overloaded State Property Setter function
*
* @param[in] value - One of OFF / ON / BLINK
* @return - Success or exception thrown
*/
Action state(Action value) override;
private:
/** @brief Associated LED implementation
*/
SysfsLed& led;
/** @brief The value that will assert the LED */
unsigned long assert;
/** @brief The period that the LED will operate on, in milliseconds
* Will be removed when periodicity is put into interface
*/
uint32_t periodMs;
/** @brief reads sysfs and then setsup the parameteres accordingly
*
* @return None
*/
void setInitialState();
/** @brief Applies the user triggered action on the LED
* by writing to sysfs
*
* @param [in] current - Current state of LED
* @param [in] request - Requested state
*
* @return None
*/
void driveLED(Action current, Action request);
/** @brief Sets the LED to either ON or OFF state
*
* @param [in] action - Requested action. Could be OFF or ON
* @return None
*/
void stableStateOperation(Action action);
/** @brief Sets the LED to BLINKING
*
* @return None
*/
void blinkOperation();
};
} // namespace led
} // namespace phosphor
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