mouse.h

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#ifndef _MOUSE_H_
#define _MOUSE_H

enum _mouse_commands {
    MOUSE_RESET = 0xff,             
    MOUSE_RESEND = 0xfe,            
    MOUSE_SETDEFAULTS = 0xf6,       
    MOUSE_DDR = 0xf5,               
    MOUSE_EDR = 0xf4,               
    MOUSE_SSR = 0xf3,               
    MOUSE_GETID = 0xf2,             
    MOUSE_SETREMOTE = 0xf0,         
    MOUSE_SETWRAP = 0xee,           
    MOUSE_RESETWRAP = 0xec,         
    MOUSE_READDATA = 0xeb,          
    MOUSE_SETSTREAM = 0xea,         
    MOUSE_STATUSRQ = 0xe9,          
    MOUSE_SETRES = 0xe8,            
    MOUSE_SETSCALE21 = 0xe7,        
    MOUSE_SETSCALE11 = 0xe6,        
};

enum _mouse_response {
    MOUSE_ACK = 0xfa,               
    MOUSE_NAK = 0xfe,               
    MOUSE_ERROR = 0xfc,             
    MOUSE_RESETOK = 0xaa,           
};

#define YOVERFLOW   7               
#define XOVERFLOW   6               
#define YSIGN       5               
#define XSIGN       4               
#define BUTTON3     2               
#define BUTTON2     1               
#define BUTTON1     0               

typedef union _mouse_movt {
    struct {
        uint8_t bits;               
        uint8_t dx;                 
        uint8_t dy;                 
    } fields;
    
    uint8_t byte[3];                
} MouseMovt;

typedef struct _decoded_movt {
    int16_t dx;                     
    int16_t dy;                     
    uint8_t buttons;                
} DecodedMovt;

uint8_t mouse_boot();

void mouse_setres(uint8_t res);

#endif

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