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#pragma once
#include <string>
#include <sdbusplus/bus.hpp>
#include <sdbusplus/server/object.hpp>
#include <org/open_power/OCC/PassThrough/server.hpp>
namespace open_power
{
namespace occ
{
using Iface = sdbusplus::server::object::object<
sdbusplus::org::open_power::OCC::server::PassThrough>;
// For waiting on signals
namespace sdbusRule = sdbusplus::bus::match::rules;
/** @class PassThrough
* @brief Implements org.open_power.OCC.PassThrough
*/
class PassThrough : public Iface
{
public:
PassThrough() = delete;
PassThrough(const PassThrough&) = delete;
PassThrough& operator=(const PassThrough&) = delete;
PassThrough(PassThrough&&) = default;
PassThrough& operator=(PassThrough&&) = default;
/** @brief Ctor to put pass-through d-bus object on the bus
* @param[in] bus - Bus to attach to
* @param[in] path - Path to attach at
*/
PassThrough(sdbusplus::bus::bus& bus,
const char* path);
~PassThrough()
{
closeDevice();
}
/** @brief Pass through command to OCC
* @param[in] command - command to pass-through
* @returns OCC response as an array
*/
std::vector<std::int32_t>
send(std::vector<std::int32_t> command) override;
private:
/** @brief Pass-through occ path on the bus */
std::string path;
/** @brief OCC device path
* For now, here is the hard-coded mapping until
* the udev rule is in.
* occ0 --> /dev/occ1
* occ1 --> /dev/occ2
* ...
*/
std::string devicePath;
/** brief file descriptor associated with occ device */
int fd = -1;
/** @brief Subscribe to OCC Status signal
*
* Once the OCC status gets to active, only then we will get /dev/occ2
* populated and hence need to wait on that before opening that
*/
sdbusplus::bus::match_t activeStatusSignal;
/** Opens devicePath and populates file descritor */
void openDevice();
/** Closed the fd associated with opened device */
void closeDevice();
/** @brief Callback function on OCC Status change signals
*
* @param[in] msg - Data associated with subscribed signal
*/
void activeStatusEvent(sdbusplus::message::message& msg);
};
} // namespace occ
} // namespace open_power
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