blob: dc98739bbced8ef43a674b81e16392916572a85b [file] [log] [blame]
Naveen Moses3bd1cfc2022-02-14 18:04:20 +05301#pragma once
George Liud6a1bae2022-06-20 13:47:31 +08002#include "config.h"
3
Naveen Moses3bd1cfc2022-02-14 18:04:20 +05304#include "button_factory.hpp"
5#include "button_interface.hpp"
6#include "common.hpp"
7#include "gpio.hpp"
8#include "xyz/openbmc_project/Chassis/Buttons/HostSelector/server.hpp"
9#include "xyz/openbmc_project/Chassis/Common/error.hpp"
10
11#include <unistd.h>
12
Naveen Moses3bd1cfc2022-02-14 18:04:20 +053013#include <nlohmann/json.hpp>
14#include <phosphor-logging/elog-errors.hpp>
15
George Liu5b98f4d2022-06-20 13:31:14 +080016#include <fstream>
17#include <iostream>
18
Naveen Moses3bd1cfc2022-02-14 18:04:20 +053019static constexpr std::string_view HOST_SELECTOR = "HOST_SELECTOR";
20
21static constexpr auto INVALID_INDEX = std::numeric_limits<size_t>::max();
22
23enum class GpioState
24{
25 low,
26 high
27};
28
George Liu5b98f4d2022-06-20 13:31:14 +080029class HostSelector final :
30 public sdbusplus::server::object_t<
31 sdbusplus::xyz::openbmc_project::Chassis::Buttons::server::
32 HostSelector>,
33 public ButtonIface
Naveen Moses3bd1cfc2022-02-14 18:04:20 +053034{
35 public:
Patrick Williams9a529a62022-07-22 19:26:54 -050036 HostSelector(sdbusplus::bus_t& bus, const char* path, EventPtr& event,
Naveen Moses3bd1cfc2022-02-14 18:04:20 +053037 buttonConfig& buttonCfg) :
38 sdbusplus::server::object_t<sdbusplus::xyz::openbmc_project::Chassis::
39 Buttons::server::HostSelector>(
40 bus, path, action::defer_emit),
41 ButtonIface(bus, event, buttonCfg)
42 {
43 init();
44 // read and store the host selector position Map
45 hsPosMap = buttonCfg.extraJsonInfo.at("host_selector_map")
46 .get<std::map<std::string, int>>();
47 maxPosition(buttonCfg.extraJsonInfo["max_position"], true);
48 gpioLineCount = buttonCfg.gpios.size();
49 setInitialHostSelectorValue();
50 emit_object_added();
51 }
52
53 ~HostSelector()
54 {
55 deInit();
56 }
57
58 static constexpr std::string_view getFormFactorName()
59 {
60 return HOST_SELECTOR;
61 }
62
63 static const char* getDbusObjectPath()
64 {
65 return HS_DBUS_OBJECT_NAME;
66 }
67 void handleEvent(sd_event_source* es, int fd, uint32_t revents) override;
68 size_t getMappedHSConfig(size_t hsPosition);
69 size_t getGpioIndex(int fd);
70 void setInitialHostSelectorValue(void);
71 void setHostSelectorValue(int fd, GpioState state);
72
73 protected:
74 size_t hostSelectorPosition = 0;
75 size_t gpioLineCount;
76
77 // map of read Host selector switch value and corresponding host number
78 // value.
79 std::map<std::string, int> hsPosMap;
80};