hif.h

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#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <b8/type.h>
#include <b8/register.h>
#include <stddef.h>
 
/* Gamepad button status bits */
#define B8_HIF_PAD_STATUS_START   (1 << 0)
#define B8_HIF_PAD_STATUS_SELECT  (1 << 1)
#define B8_HIF_PAD_STATUS_LEFT    (1 << 2)
#define B8_HIF_PAD_STATUS_UP      (1 << 3)
#define B8_HIF_PAD_STATUS_RIGHT   (1 << 4)
#define B8_HIF_PAD_STATUS_DOWN    (1 << 5)
#define B8_HIF_PAD_STATUS_BTN_A   (1 << 6)
#define B8_HIF_PAD_STATUS_BTN_B   (1 << 7)
 
/* Alias for button names */
#define B8_HIF_PAD_STATUS_BTN_X B8_HIF_PAD_STATUS_BTN_A
#define B8_HIF_PAD_STATUS_BTN_Z B8_HIF_PAD_STATUS_BTN_B
 
#define B8_HIF_ADDR (0xffffa000)
 
#define B8_HIF_PAD(n) _B8_REG(B8_HIF_ADDR + (n)*4)
#define B8_HIF_PAD0   B8_HIF_PAD(0)
#define B8_HIF_PAD1   B8_HIF_PAD(1)
#define B8_HIF_PAD2   B8_HIF_PAD(2)
#define B8_HIF_PAD3   B8_HIF_PAD(3)
 
/* Touch and mouse control registers */
#define B8_HIF_TOUCH_CTRL    _B8_REG(B8_HIF_ADDR + 0x40)
#define B8_HIF_TOUCH_CONNECT _B8_REG(B8_HIF_ADDR + 0x44)
 
/* Keyboard input registers */
#define B8_HIF_KB_ADDR  (B8_HIF_ADDR + 0x20)
#define B8_HIF_KB_RX    _B8_REG(B8_HIF_KB_ADDR + 0x00)
#define B8_HIF_KB_LEN   _B8_REG(B8_HIF_KB_ADDR + 0x08)
 
/* Keyboard status bits */
#define B8_HIF_KB_STATUS        _B8_REG(B8_HIF_KB_ADDR + 0x10)
#define B8_HIF_KB_STATUS_ALT      (1 << 0)
#define B8_HIF_KB_STATUS_SHIFT    (1 << 1)
#define B8_HIF_KB_STATUS_META     (1 << 2)
#define B8_HIF_KB_STATUS_CONTROL  (1 << 3)
 
/* Keyboard special key codes */
#define B8_HIF_KB_CODE_BACKSPACE   (8)
#define B8_HIF_KB_CODE_TAB         (9)
#define B8_HIF_KB_CODE_ENTER       (10)
#define B8_HIF_KB_CODE_ESCAPE      (27)
#define B8_HIF_KB_CODE_ARROW_LEFT  (128)
#define B8_HIF_KB_CODE_ARROW_RIGHT (129)
#define B8_HIF_KB_CODE_ARROW_UP    (130)
#define B8_HIF_KB_CODE_ARROW_DOWN  (131)
 
typedef enum {
    B8_HIF_EV_TOUCH_START = 0xf0,
    B8_HIF_EV_TOUCH_MOVE,
    B8_HIF_EV_TOUCH_CANCEL,
    B8_HIF_EV_TOUCH_END,
    B8_HIF_EV_MOUSE_DOWN,
    B8_HIF_EV_MOUSE_MOVE,
    B8_HIF_EV_MOUSE_UP,
    B8_HIF_EV_MOUSE_HOVER_MOVE,
} b8HifEventType;
 
typedef struct _b8HifEvent {
    b8HifEventType type; 
  s16 xp; 
  s16 yp; 
  u8 identifier; //**< `identifier`: A unique identifier for the event (useful for tracking touch points). */
} b8HifEvent;
 
#define B8_HIF_MAX_TOUCH_EVENTS (32)
 
typedef struct _b8HifEvents {
    size_t num;                          
    b8HifEvent events[B8_HIF_MAX_TOUCH_EVENTS]; 
} b8HifEvents;
 
extern int b8HifGetEvents(b8HifEvents* result);
 
typedef struct _b8HifMouseStatus {
    s16 mouse_x;    
    s16 mouse_y;    
    u8 is_dragging; 
} b8HifMouseStatus;
 
 
extern const b8HifMouseStatus* b8HifGetMouseStatus(void);
 
#ifdef __cplusplus
}
#endif