| 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 */ |