/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public

    License along with this library; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

#ifdef SDL_CDROM_DC

/* Functions for system-level CD-ROM audio control */

#include <dc/cdrom.h>

#include <dc/spu.h>

#include "SDL_cdrom.h"

#include "../SDL_syscdrom.h"

/* The system-dependent CD control functions */

static const char *SDL_SYS_CDName(int drive);

static int SDL_SYS_CDOpen(int drive);

static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);

static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);

static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);

static int SDL_SYS_CDPause(SDL_CD *cdrom);

static int SDL_SYS_CDResume(SDL_CD *cdrom);

static int SDL_SYS_CDStop(SDL_CD *cdrom);

static int SDL_SYS_CDEject(SDL_CD *cdrom);

static void SDL_SYS_CDClose(SDL_CD *cdrom);

int  SDL_SYS_CDInit(void)

{

	/* Fill in our driver capabilities */

	SDL_CDcaps.Name = SDL_SYS_CDName;

	SDL_CDcaps.Open = SDL_SYS_CDOpen;

	SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;

	SDL_CDcaps.Status = SDL_SYS_CDStatus;

	SDL_CDcaps.Play = SDL_SYS_CDPlay;

	SDL_CDcaps.Pause = SDL_SYS_CDPause;

	SDL_CDcaps.Resume = SDL_SYS_CDResume;

	SDL_CDcaps.Stop = SDL_SYS_CDStop;

	SDL_CDcaps.Eject = SDL_SYS_CDEject;

	SDL_CDcaps.Close = SDL_SYS_CDClose;

	return(0);

}

static const char *SDL_SYS_CDName(int drive)

{

	return "/cd";

}

static int SDL_SYS_CDOpen(int drive)

{

	return(drive);

}

#define	TRACK_CDDA	0

static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)

{

	CDROM_TOC toc;

	int ret,i;

	ret = cdrom_read_toc(&toc,0);

	if (ret!=ERR_OK) {

		return -1;

	}

	cdrom->numtracks = TOC_TRACK(toc.last)-TOC_TRACK(toc.first)+1;

	for(i=0;i<cdrom->numtracks;i++) {

		unsigned long entry = toc.entry[i];

		cdrom->track[i].id = i+1;

		cdrom->track[i].type = (TOC_CTRL(toc.entry[i])==TRACK_CDDA)?SDL_AUDIO_TRACK:SDL_DATA_TRACK;

		cdrom->track[i].offset = TOC_LBA(entry)-150;

		cdrom->track[i].length = TOC_LBA((i+1<toc.last)?toc.entry[i+1]:toc.leadout_sector)-TOC_LBA(entry);

	}

	return 0;

}

/* Get CD-ROM status */

static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)

{

	int ret,dc_status,disc_type;

	ret = cdrom_get_status(&dc_status,&disc_type);

	if (ret!=ERR_OK) return CD_ERROR;

	switch(dc_status) {

//	case CD_STATUS_BUSY:

	case CD_STATUS_PAUSED:

		return CD_PAUSED;

	case CD_STATUS_STANDBY:

		return CD_STOPPED;

	case CD_STATUS_PLAYING:

		return CD_PLAYING;

//	case CD_STATUS_SEEKING:

//	case CD_STATUS_SCANING:

	case CD_STATUS_OPEN:

	case CD_STATUS_NO_DISC:

		return CD_TRAYEMPTY;

	default:

		return	CD_ERROR;

	}

}

/* Start play */

static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)

{

	int ret = cdrom_cdda_play(start-150,start-150+length,1,CDDA_SECTORS);

	return ret==ERR_OK?0:-1;

}

/* Pause play */

static int SDL_SYS_CDPause(SDL_CD *cdrom)

{

	int ret=cdrom_cdda_pause();

	return ret==ERR_OK?0:-1;

}

/* Resume play */

static int SDL_SYS_CDResume(SDL_CD *cdrom)

{

	int ret=cdrom_cdda_resume();

	return ret==ERR_OK?0:-1;

}

/* Stop play */

static int SDL_SYS_CDStop(SDL_CD *cdrom)

{

	int ret=cdrom_spin_down();

	return ret==ERR_OK?0:-1;

}

/* Eject the CD-ROM */

static int SDL_SYS_CDEject(SDL_CD *cdrom)

{

	return -1;

}

/* Close the CD-ROM handle */

static void SDL_SYS_CDClose(SDL_CD *cdrom)

{

}

void SDL_SYS_CDQuit(void)

{

}

#endif /* SDL_CDROM_DC */