e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 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 | |
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 | |
64 | static const char *SDL_SYS_CDName(int drive) |
65 | { |
66 | return "/cd"; |
67 | } |
68 | |
69 | static int SDL_SYS_CDOpen(int drive) |
70 | { |
71 | return(drive); |
72 | } |
73 | |
74 | #define TRACK_CDDA 0 |
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 */ |
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 */ |
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 */ |
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 */ |
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 */ |
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 */ |
152 | static int SDL_SYS_CDEject(SDL_CD *cdrom) |
153 | { |
154 | return -1; |
155 | } |
156 | |
157 | /* Close the CD-ROM handle */ |
158 | static void SDL_SYS_CDClose(SDL_CD *cdrom) |
159 | { |
160 | } |
161 | |
162 | void SDL_SYS_CDQuit(void) |
163 | { |
164 | |
165 | } |
166 | |
167 | #endif /* SDL_CDROM_DC */ |