1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 Sam Lantinga
4
5    This library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with this library; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24#ifdef SDL_CDROM_DC
25
26/* Functions for system-level CD-ROM audio control */
27
28#include <dc/cdrom.h>
29#include <dc/spu.h>
30
31#include "SDL_cdrom.h"
32#include "../SDL_syscdrom.h"
33
34/* The system-dependent CD control functions */
35static const char *SDL_SYS_CDName(int drive);
36static int SDL_SYS_CDOpen(int drive);
37static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
38static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
39static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
40static int SDL_SYS_CDPause(SDL_CD *cdrom);
41static int SDL_SYS_CDResume(SDL_CD *cdrom);
42static int SDL_SYS_CDStop(SDL_CD *cdrom);
43static int SDL_SYS_CDEject(SDL_CD *cdrom);
44static void SDL_SYS_CDClose(SDL_CD *cdrom);
45
46
47int  SDL_SYS_CDInit(void)
48{
49	/* Fill in our driver capabilities */
50	SDL_CDcaps.Name = SDL_SYS_CDName;
51	SDL_CDcaps.Open = SDL_SYS_CDOpen;
52	SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
53	SDL_CDcaps.Status = SDL_SYS_CDStatus;
54	SDL_CDcaps.Play = SDL_SYS_CDPlay;
55	SDL_CDcaps.Pause = SDL_SYS_CDPause;
56	SDL_CDcaps.Resume = SDL_SYS_CDResume;
57	SDL_CDcaps.Stop = SDL_SYS_CDStop;
58	SDL_CDcaps.Eject = SDL_SYS_CDEject;
59	SDL_CDcaps.Close = SDL_SYS_CDClose;
60
61	return(0);
62}
63
64static const char *SDL_SYS_CDName(int drive)
65{
66	return "/cd";
67}
68
69static int SDL_SYS_CDOpen(int drive)
70{
71	return(drive);
72}
73
74#define	TRACK_CDDA	0
75static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
76{
77	CDROM_TOC toc;
78	int ret,i;
79
80	ret = cdrom_read_toc(&toc,0);
81	if (ret!=ERR_OK) {
82		return -1;
83	}
84
85	cdrom->numtracks = TOC_TRACK(toc.last)-TOC_TRACK(toc.first)+1;
86	for(i=0;i<cdrom->numtracks;i++) {
87		unsigned long entry = toc.entry[i];
88		cdrom->track[i].id = i+1;
89		cdrom->track[i].type = (TOC_CTRL(toc.entry[i])==TRACK_CDDA)?SDL_AUDIO_TRACK:SDL_DATA_TRACK;
90		cdrom->track[i].offset = TOC_LBA(entry)-150;
91		cdrom->track[i].length = TOC_LBA((i+1<toc.last)?toc.entry[i+1]:toc.leadout_sector)-TOC_LBA(entry);
92	}
93
94	return 0;
95}
96
97/* Get CD-ROM status */
98static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
99{
100	int ret,dc_status,disc_type;
101
102	ret = cdrom_get_status(&dc_status,&disc_type);
103	if (ret!=ERR_OK) return CD_ERROR;
104
105	switch(dc_status) {
106//	case CD_STATUS_BUSY:
107	case CD_STATUS_PAUSED:
108		return CD_PAUSED;
109	case CD_STATUS_STANDBY:
110		return CD_STOPPED;
111	case CD_STATUS_PLAYING:
112		return CD_PLAYING;
113//	case CD_STATUS_SEEKING:
114//	case CD_STATUS_SCANING:
115	case CD_STATUS_OPEN:
116	case CD_STATUS_NO_DISC:
117		return CD_TRAYEMPTY;
118	default:
119		return	CD_ERROR;
120	}
121}
122
123/* Start play */
124static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
125{
126	int ret = cdrom_cdda_play(start-150,start-150+length,1,CDDA_SECTORS);
127	return ret==ERR_OK?0:-1;
128}
129
130/* Pause play */
131static int SDL_SYS_CDPause(SDL_CD *cdrom)
132{
133	int ret=cdrom_cdda_pause();
134	return ret==ERR_OK?0:-1;
135}
136
137/* Resume play */
138static int SDL_SYS_CDResume(SDL_CD *cdrom)
139{
140	int ret=cdrom_cdda_resume();
141	return ret==ERR_OK?0:-1;
142}
143
144/* Stop play */
145static int SDL_SYS_CDStop(SDL_CD *cdrom)
146{
147	int ret=cdrom_spin_down();
148	return ret==ERR_OK?0:-1;
149}
150
151/* Eject the CD-ROM */
152static int SDL_SYS_CDEject(SDL_CD *cdrom)
153{
154	return -1;
155}
156
157/* Close the CD-ROM handle */
158static void SDL_SYS_CDClose(SDL_CD *cdrom)
159{
160}
161
162void SDL_SYS_CDQuit(void)
163{
164
165}
166
167#endif /* SDL_CDROM_DC */
168