blob: 0670876618873e90a41a4d0d77545e7934dd79d9 [file] [log] [blame]
#pragma once
#include "power_interface.hpp"
#include "power_sequencer_monitor.hpp"
#include "utility.hpp"
#include <gpiod.hpp>
#include <sdbusplus/bus.hpp>
#include <sdbusplus/bus/match.hpp>
#include <sdbusplus/message.hpp>
#include <sdbusplus/server/object.hpp>
#include <sdeventplus/clock.hpp>
#include <sdeventplus/event.hpp>
#include <sdeventplus/utility/timer.hpp>
#include <chrono>
namespace phosphor::power::sequencer
{
using PowerObject = sdbusplus::server::object::object<PowerInterface>;
/**
* @class PowerControl
* This class implements GPIO control of power on / off, and monitoring of the
* chassis power good.
*/
class PowerControl : public PowerObject
{
public:
PowerControl() = delete;
PowerControl(const PowerControl&) = delete;
PowerControl& operator=(const PowerControl&) = delete;
PowerControl(PowerControl&&) = delete;
PowerControl& operator=(PowerControl&&) = delete;
~PowerControl() = default;
/**
* Creates a controller object for power on and off.
* @param[in] bus D-Bus bus object
* @param[in] event event object
*/
PowerControl(sdbusplus::bus::bus& bus, const sdeventplus::Event& event);
/** @copydoc PowerInterface::getPgood() */
int getPgood() const override;
/** @copydoc PowerInterface::getPgoodTimeout() */
int getPgoodTimeout() const override;
/** @copydoc PowerInterface::getState() */
int getState() const override;
/**
* Callback function to handle interfacesAdded D-Bus signals
* @param msg Expanded sdbusplus message data
*/
void interfacesAddedHandler(sdbusplus::message::message& msg);
/** @copydoc PowerInterface::setPgoodTimeout() */
void setPgoodTimeout(int timeout) override;
/** @copydoc PowerInterface::setState() */
void setState(int state) override;
/** @copydoc PowerInterface::setPowerSupplyError() */
void setPowerSupplyError(const std::string& error) override;
private:
/**
* The D-Bus bus object
*/
sdbusplus::bus::bus& bus;
/**
* The power sequencer device to monitor.
*/
std::unique_ptr<PowerSequencerMonitor> device;
/**
* Indicates if a specific power sequencer device has already been found.
*/
bool deviceFound{false};
/**
* Indicates if a failure has already been found. Cleared at power on.
*/
bool failureFound{false};
/**
* Indicates if a state transition is taking place
*/
bool inStateTransition{false};
/**
* The match to Entity Manager interfaces added.
*/
sdbusplus::bus::match_t match;
/**
* Minimum time from cold start to power on constant
*/
static constexpr std::chrono::seconds minimumColdStartTime{15};
/**
* Minimum time from power off to power on constant
*/
static constexpr std::chrono::seconds minimumPowerOffTime{25};
/**
* Power good
*/
int pgood{0};
/**
* GPIO line object for chassis power good
*/
gpiod::line pgoodLine;
/**
* Power good timeout constant
*/
static constexpr std::chrono::seconds pgoodTimeout{10};
/**
* Point in time at which power good timeout will take place
*/
std::chrono::time_point<std::chrono::steady_clock> pgoodTimeoutTime;
/**
* Poll interval constant
*/
static constexpr std::chrono::milliseconds pollInterval{3000};
/**
* GPIO line object for power-on / power-off control
*/
gpiod::line powerControlLine;
/**
* Point in time at which minumum power off time will have passed
*/
std::chrono::time_point<std::chrono::steady_clock> powerOnAllowedTime;
/**
* Power supply error. Cleared at power on.
*/
std::string powerSupplyError;
/**
* Power state
*/
int state{0};
/**
* Power good timeout
*/
std::chrono::seconds timeout{pgoodTimeout};
/**
* Timer to poll the pgood
*/
sdeventplus::utility::Timer<sdeventplus::ClockId::Monotonic> timer;
/**
* Get the device properties
* @param[in] properties A map of property names and values
*/
void getDeviceProperties(util::DbusPropertyMap& properties);
/**
* Polling method for monitoring the system power good
*/
void pollPgood();
/**
* Set up power sequencer device
*/
void setUpDevice();
/**
* Set up GPIOs
*/
void setUpGpio();
};
} // namespace phosphor::power::sequencer