1 #pragma once 2 #include "button_factory.hpp" 3 #include "button_interface.hpp" 4 #include "common.hpp" 5 #include "gpio.hpp" 6 #include "xyz/openbmc_project/Chassis/Buttons/HostSelector/server.hpp" 7 #include "xyz/openbmc_project/Chassis/Common/error.hpp" 8 9 #include <unistd.h> 10 11 #include <fstream> 12 #include <iostream> 13 #include <nlohmann/json.hpp> 14 #include <phosphor-logging/elog-errors.hpp> 15 16 static constexpr std::string_view HOST_SELECTOR = "HOST_SELECTOR"; 17 18 static constexpr auto INVALID_INDEX = std::numeric_limits<size_t>::max(); 19 20 enum class GpioState 21 { 22 low, 23 high 24 }; 25 26 class HostSelector final : public sdbusplus::server::object_t< 27 sdbusplus::xyz::openbmc_project::Chassis:: 28 Buttons::server::HostSelector>, 29 public ButtonIface 30 { 31 public: 32 HostSelector(sdbusplus::bus::bus& bus, const char* path, EventPtr& event, 33 buttonConfig& buttonCfg) : 34 sdbusplus::server::object_t<sdbusplus::xyz::openbmc_project::Chassis:: 35 Buttons::server::HostSelector>( 36 bus, path, action::defer_emit), 37 ButtonIface(bus, event, buttonCfg) 38 { 39 init(); 40 // read and store the host selector position Map 41 hsPosMap = buttonCfg.extraJsonInfo.at("host_selector_map") 42 .get<std::map<std::string, int>>(); 43 maxPosition(buttonCfg.extraJsonInfo["max_position"], true); 44 gpioLineCount = buttonCfg.gpios.size(); 45 setInitialHostSelectorValue(); 46 emit_object_added(); 47 } 48 49 ~HostSelector() 50 { 51 deInit(); 52 } 53 54 static constexpr std::string_view getFormFactorName() 55 { 56 return HOST_SELECTOR; 57 } 58 59 static const char* getDbusObjectPath() 60 { 61 return HS_DBUS_OBJECT_NAME; 62 } 63 void handleEvent(sd_event_source* es, int fd, uint32_t revents) override; 64 size_t getMappedHSConfig(size_t hsPosition); 65 size_t getGpioIndex(int fd); 66 void setInitialHostSelectorValue(void); 67 void setHostSelectorValue(int fd, GpioState state); 68 69 protected: 70 size_t hostSelectorPosition = 0; 71 size_t gpioLineCount; 72 73 // map of read Host selector switch value and corresponding host number 74 // value. 75 std::map<std::string, int> hsPosMap; 76 }; 77