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#include "gpio_handle.hpp"
#include <cstdlib>
#include <gpioplus/chip.hpp>
#include <gpioplus/handle.hpp>
#include <memory>
#include <phosphor-logging/log.hpp>
#include <string>
namespace gpio
{
using namespace phosphor::logging;
std::unique_ptr<gpioplus::HandleInterface>
BuildGpioHandle(const std::string& gpiochip, const std::string& line)
{
char *gpioEnd, *lineEnd;
unsigned long chipId = std::strtoul(gpiochip.c_str(), &gpioEnd, 10);
unsigned long lineOffset = std::strtoul(line.c_str(), &lineEnd, 10);
if (!gpioEnd || gpioEnd != &gpiochip.c_str()[gpiochip.length()])
{
log<level::ERR>("Unable to handle giochip entry",
entry("GPIOCHIP=%s", gpiochip.c_str()));
return nullptr;
}
if (!lineEnd || lineEnd != &line.c_str()[line.length()])
{
log<level::ERR>("Unable to handle line entry",
entry("LINE=%s", line.c_str()));
return nullptr;
}
try
{
gpioplus::Chip chip(chipId);
gpioplus::HandleFlags flags(chip.getLineInfo(lineOffset).flags);
flags.output = true;
std::vector<gpioplus::Handle::Line> lines = {
{static_cast<uint32_t>(lineOffset), 0}};
return std::make_unique<gpioplus::Handle>(chip, lines, flags,
"phosphor-hwmon");
}
catch (const std::exception& e)
{
log<level::ERR>("Unable to set up GPIO handle",
entry("ERROR=%s", e.what()));
return nullptr;
}
}
} // namespace gpio
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