io_expander.h

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#ifndef IO_EXPANDER_H
#define IO_EXPANDER_H
 
#include <mbed.h>
#include <vitroio-sdk/debug.h>
#include <vitroio-sdk/consts.h>
 
#define IOEXPANDER_CMD_READ_0           0x00
#define IOEXPANDER_CMD_READ_1           0x01
#define IOEXPANDER_CMD_WRITE_0          0x02
#define IOEXPANDER_CMD_WRITE_1          0x03
#define IOEXPANDER_CMD_CONFIGURE_0      0x06
#define IOEXPANDER_CMD_CONFIGURE_1      0x07
 
namespace vitroio
{
 
namespace sdk
{
 
namespace impl
{
 
class IOExpander {
public:
 
    IOExpander(PinName sda_pin, PinName scl_pin);
 
    ~IOExpander();
 
    int configurePort(int address, uint8_t port_number, char config);
 
    int readInputPort(int address, uint8_t port_number, char *portState);
 
    int writeOutputPort(int address, uint8_t port_number, char data);
 
private:
    I2C* i2c_;
};
 
} // namespace impl
 
} // namespace sdk
 
} // namespace vitroio
#endif // IO_EXPANDER_H