gpio.h

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#ifndef GPIO_H
#define GPIO_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdbool.h>
#include <stdint.h>
 
#define PI_HAT_PATH "/dev/ttyS0"
#define CHIP_NAME "/dev/gpiochip0"
#define POWER_ENABLE_PIN 24U
#define IRIDIUM_ENABLE_PIN 16U
#define IRIDIUM_BOOTED_PIN 23U
 
#define GPIO_CHIP_MAX_LEN 20U
 
typedef struct
{
    const char chip[GPIO_CHIP_MAX_LEN];
    uint8_t pin;
} gpioPin_t;
 
typedef struct
{
    gpioPin_t powerEnable;
    gpioPin_t iridiumEnable;
    gpioPin_t booted;
} rbGpioTable_t;
 
extern const rbGpioTable_t gpioTable;
 
bool gpioToggle(const char * selectedChip, int selectedPin, int value);
bool gpioDriveHigh(const char * selectedChip, int selectedPin);
bool gpioDriveLow(const char * selectedChip, int selectedPin);
int gpioReceive(const char * selectedChip, int selectedPin);
bool gpioListenIridBooted(const char * selectedChip, int selectedPin, const int timeout);
 
#ifdef __cplusplus
}
#endif
 
#endif