#pragma once #include "sysfs.hpp" #include #include #include #include #include namespace phosphor { namespace led { /** @brief Assert LED by writing 255 */ constexpr auto ASSERT = 255; /** @brief De-assert by writing "0" */ constexpr auto 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 Frequency range that the LED can operate on. * Will be removed when frequency is put into interface */ uint32_t frequency; /** @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