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#pragma once
#include <cstdint>
#include <optional>
#include <string>
namespace veye {
namespace imx287m {
class i2c
{
public:
explicit i2c(const std::string &name = "/dev/i2c-2",
const int address = 0x3b);
~i2c();
public:
/*!
* \brief open - open i2c device with `name` passed to constructor
* \return - true on success or if already open, false otherwise
*/
bool open();
std::optional<uint32_t> read(uint16_t reg);
bool write(uint16_t reg, const uint32_t value);
private:
int m_fd{-1};
std::string m_name;
int m_address{-1};
};
/*!
* \brief i2c_read - read device registers using i2c
* \param fd - device file descriptor
* \param i2c_addr - i2c adderr
* \param reg - register
* \param value - value to set
* \return non-empty register value on success, empty value on failure
*/
std::optional<uint32_t> i2c_read(int fd, uint8_t i2c_addr, uint16_t reg);
bool i2c_write(int fd, uint16_t reg, const uint32_t value);
} // namespace imx287m
} // namespace veye
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