#ifndef BUTTON_H_INCLUDED
#define BUTTON_H_INCLUDED


void button_init(void);
int button_poll(void (*callback)(uint8_t press, int hold));
int input_get_swr(void);

#define N_BUTTONS 12
#define BUTTON_0        4
#define BUTTON_1        5
#define BUTTON_2        6
#define BUTTON_3        7
#define BUTTON_4        0
#define BUTTON_5        1
#define BUTTON_6        2
#define BUTTON_7        8
#define BUTTON_8        9
#define BUTTON_9        10
#define BUTTON_SCROLL   11
#define BUTTON_ENTER    3

static inline char bu2c(uint8_t btn)
{
    switch(btn) {
        case BUTTON_0:
            return '0';
        case BUTTON_1:
            return '1';
        case BUTTON_2:
            return '2';
        case BUTTON_3:
            return '3';
        case BUTTON_4:
            return '4';
        case BUTTON_5:
            return '5';
        case BUTTON_6:
            return '6';
        case BUTTON_7:
            return '7';
        case BUTTON_8:
            return '8';
        case BUTTON_9:
            return '9';
        case BUTTON_SCROLL:
            return ' ';
        case BUTTON_ENTER:
            return '\r';
    }
    return 0;
}
#endif