1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 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 */
35 static const char *SDL_SYS_CDName(int drive);
36 static int SDL_SYS_CDOpen(int drive);
37 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
38 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
39 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
40 static int SDL_SYS_CDPause(SDL_CD *cdrom);
41 static int SDL_SYS_CDResume(SDL_CD *cdrom);
42 static int SDL_SYS_CDStop(SDL_CD *cdrom);
43 static int SDL_SYS_CDEject(SDL_CD *cdrom);
44 static void SDL_SYS_CDClose(SDL_CD *cdrom);
45
46
SDL_SYS_CDInit(void)47 int 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
SDL_SYS_CDName(int drive)64 static const char *SDL_SYS_CDName(int drive)
65 {
66 return "/cd";
67 }
68
SDL_SYS_CDOpen(int drive)69 static int SDL_SYS_CDOpen(int drive)
70 {
71 return(drive);
72 }
73
74 #define TRACK_CDDA 0
SDL_SYS_CDGetTOC(SDL_CD * cdrom)75 static 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 */
SDL_SYS_CDStatus(SDL_CD * cdrom,int * position)98 static 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 */
SDL_SYS_CDPlay(SDL_CD * cdrom,int start,int length)124 static 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 */
SDL_SYS_CDPause(SDL_CD * cdrom)131 static 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 */
SDL_SYS_CDResume(SDL_CD * cdrom)138 static 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 */
SDL_SYS_CDStop(SDL_CD * cdrom)145 static 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 */
SDL_SYS_CDEject(SDL_CD * cdrom)152 static int SDL_SYS_CDEject(SDL_CD *cdrom)
153 {
154 return -1;
155 }
156
157 /* Close the CD-ROM handle */
SDL_SYS_CDClose(SDL_CD * cdrom)158 static void SDL_SYS_CDClose(SDL_CD *cdrom)
159 {
160 }
161
SDL_SYS_CDQuit(void)162 void SDL_SYS_CDQuit(void)
163 {
164
165 }
166
167 #endif /* SDL_CDROM_DC */
168