blob: 75ecb805cbc88541b1fbf06216ef9a4b58f164a4 [file] [log] [blame]
/**
* Copyright © 2017 IBM Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "utility.hpp"
#include "types.hpp"
#include <fstream>
namespace phosphor
{
namespace power
{
namespace util
{
constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper";
constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper";
constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
using namespace phosphor::logging;
using json = nlohmann::json;
std::string getService(const std::string& path, const std::string& interface,
sdbusplus::bus::bus& bus)
{
auto method = bus.new_method_call(MAPPER_BUSNAME, MAPPER_PATH,
MAPPER_INTERFACE, "GetObject");
method.append(path);
method.append(std::vector<std::string>({interface}));
auto reply = bus.call(method);
std::map<std::string, std::vector<std::string>> response;
reply.read(response);
if (response.empty())
{
log<level::ERR>("Error in mapper response for getting service name",
entry("PATH=%s", path.c_str()),
entry("INTERFACE=%s", interface.c_str()));
return std::string{};
}
return response.begin()->first;
}
json loadJSONFromFile(const char* path)
{
std::ifstream ifs(path);
if (!ifs.good())
{
log<level::ERR>("Unable to open file", entry("PATH=%s", path));
return nullptr;
}
auto data = json::parse(ifs, nullptr, false);
if (data.is_discarded())
{
log<level::ERR>("Failed to parse json", entry("PATH=%s", path));
return nullptr;
}
return data;
}
phosphor::pmbus::Type getPMBusAccessType(const json& json)
{
using namespace phosphor::pmbus;
Type type;
auto typeStr = json.at("inventoryPMBusAccessType");
if (typeStr == "Hwmon")
{
type = Type::Hwmon;
}
else if (typeStr == "DeviceDebug")
{
type = Type::DeviceDebug;
}
else if (typeStr == "Debug")
{
type = Type::Debug;
}
else if (typeStr == "HwmonDeviceDebug")
{
type = Type::HwmonDeviceDebug;
}
else
{
type = Type::Base;
}
return type;
}
bool isPoweredOn(sdbusplus::bus::bus& bus, bool defaultState)
{
int32_t state = defaultState;
try
{
// When state = 1, system is powered on
auto service = util::getService(POWER_OBJ_PATH, POWER_IFACE, bus);
getProperty<int32_t>(POWER_IFACE, "state", POWER_OBJ_PATH, service, bus,
state);
}
catch (std::exception& e)
{
log<level::INFO>("Failed to get power state.");
}
return state != 0;
}
std::vector<std::string> getPSUInventoryPaths(sdbusplus::bus::bus& bus)
{
std::vector<std::string> paths;
auto method = bus.new_method_call(MAPPER_BUSNAME, MAPPER_PATH,
MAPPER_INTERFACE, "GetSubTreePaths");
method.append(INVENTORY_OBJ_PATH);
method.append(0); // Depth 0 to search all
method.append(std::vector<std::string>({PSU_INVENTORY_IFACE}));
auto reply = bus.call(method);
reply.read(paths);
return paths;
}
} // namespace util
} // namespace power
} // namespace phosphor