cdrom.c File Reference

#include <stdio.h>
#include <stdarg.h>
#include <psx.h>

Macros
#define	CDREG(x)   *((unsigned char*)(0x1f801800+x))
#define	IMASK   *((unsigned int*)0x1f801074)

Functions
void	_internal_cdrom_handler ()
void	CdSendCommand (int cmd, int num,...)
int	CdReadResults (unsigned char *out, int max)
	Reads the results of a low-level CDROM command.
void	_internal_cdromlib_callback ()
void	_internal_cdromlib_init ()
int	CdGetStatus ()
	Gets CDROM drive status.
int	CdPlayTrack (unsigned int track)
	Play an Audio CD track.
unsigned char	CdRamRead (unsigned short addr)

Variables
void(*	cdrom_handler_callback )()
volatile int	cdrom_command_direct = 0
volatile int	cdrom_command_done = 0
volatile int	cdrom_direct_cmd
volatile int	cdrom_command_dpos = 0
volatile unsigned char	cdrom_last_command
volatile unsigned char	cdrom_command_stat [2]
unsigned int	cdrom_queue_buf [4]

Macro Definition Documentation

#define CDREG

(

x

)

*((unsigned char*)(0x1f801800+x))

#define IMASK   *((unsigned int*)0x1f801074)

Function Documentation

void _internal_cdrom_handler

(

)

void _internal_cdromlib_callback

(

)

void _internal_cdromlib_init

(

void

)

int CdGetStatus

(

void

)

Gets CDROM drive status.

Returns

CDROM drive status bitmask

int CdPlayTrack

(

unsigned int

track

)

Play an Audio CD track.

Returns

1 on success, 0 on failure

unsigned char CdRamRead

(

unsigned short

addr

)

int CdReadResults	(	unsigned char *	out,
		int	max
	)

Reads the results of a low-level CDROM command.

Parameters

out	Pointer to array of chars where the output will be stored
max	Maximum number of bytes to store

Return value: number of results.

void CdSendCommand	(	int	cmd,
		int	num,
			...
	)

Variable Documentation

volatile int cdrom_command_direct = 0

volatile int cdrom_command_done = 0

volatile int cdrom_command_dpos = 0

volatile unsigned char cdrom_command_stat[2]

volatile int cdrom_direct_cmd

void(* cdrom_handler_callback)()

volatile unsigned char cdrom_last_command

unsigned int cdrom_queue_buf[4]

Initial value:

= {0x0, 
                                    0x0, 
                    (unsigned int)_internal_cdrom_handler, 
                    0x0, 
                   }