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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 #ifdef SDL_CDROM_DC |
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25 |
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26 /* Functions for system-level CD-ROM audio control */ |
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27 |
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28 #include <dc/cdrom.h> |
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29 #include <dc/spu.h> |
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30 |
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31 #include "SDL_cdrom.h" |
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32 #include "../SDL_syscdrom.h" |
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33 |
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34 /* The system-dependent CD control functions */ |
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35 static const char *SDL_SYS_CDName(int drive); |
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36 static int SDL_SYS_CDOpen(int drive); |
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37 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); |
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38 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); |
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39 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); |
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40 static int SDL_SYS_CDPause(SDL_CD *cdrom); |
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41 static int SDL_SYS_CDResume(SDL_CD *cdrom); |
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42 static int SDL_SYS_CDStop(SDL_CD *cdrom); |
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43 static int SDL_SYS_CDEject(SDL_CD *cdrom); |
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44 static void SDL_SYS_CDClose(SDL_CD *cdrom); |
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45 |
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46 |
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47 int SDL_SYS_CDInit(void) |
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48 { |
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49 /* Fill in our driver capabilities */ |
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50 SDL_CDcaps.Name = SDL_SYS_CDName; |
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51 SDL_CDcaps.Open = SDL_SYS_CDOpen; |
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52 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; |
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53 SDL_CDcaps.Status = SDL_SYS_CDStatus; |
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54 SDL_CDcaps.Play = SDL_SYS_CDPlay; |
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55 SDL_CDcaps.Pause = SDL_SYS_CDPause; |
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56 SDL_CDcaps.Resume = SDL_SYS_CDResume; |
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57 SDL_CDcaps.Stop = SDL_SYS_CDStop; |
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58 SDL_CDcaps.Eject = SDL_SYS_CDEject; |
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59 SDL_CDcaps.Close = SDL_SYS_CDClose; |
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60 |
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61 return(0); |
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62 } |
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63 |
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64 static const char *SDL_SYS_CDName(int drive) |
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65 { |
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66 return "/cd"; |
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67 } |
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68 |
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69 static int SDL_SYS_CDOpen(int drive) |
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70 { |
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71 return(drive); |
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72 } |
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73 |
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74 #define TRACK_CDDA 0 |
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75 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) |
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76 { |
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77 CDROM_TOC toc; |
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78 int ret,i; |
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79 |
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80 ret = cdrom_read_toc(&toc,0); |
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81 if (ret!=ERR_OK) { |
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82 return -1; |
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83 } |
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84 |
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85 cdrom->numtracks = TOC_TRACK(toc.last)-TOC_TRACK(toc.first)+1; |
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86 for(i=0;i<cdrom->numtracks;i++) { |
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87 unsigned long entry = toc.entry[i]; |
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88 cdrom->track[i].id = i+1; |
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89 cdrom->track[i].type = (TOC_CTRL(toc.entry[i])==TRACK_CDDA)?SDL_AUDIO_TRACK:SDL_DATA_TRACK; |
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90 cdrom->track[i].offset = TOC_LBA(entry)-150; |
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91 cdrom->track[i].length = TOC_LBA((i+1<toc.last)?toc.entry[i+1]:toc.leadout_sector)-TOC_LBA(entry); |
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92 } |
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93 |
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94 return 0; |
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95 } |
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96 |
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97 /* Get CD-ROM status */ |
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98 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) |
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99 { |
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100 int ret,dc_status,disc_type; |
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101 |
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102 ret = cdrom_get_status(&dc_status,&disc_type); |
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103 if (ret!=ERR_OK) return CD_ERROR; |
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104 |
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105 switch(dc_status) { |
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106 // case CD_STATUS_BUSY: |
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107 case CD_STATUS_PAUSED: |
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108 return CD_PAUSED; |
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109 case CD_STATUS_STANDBY: |
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110 return CD_STOPPED; |
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111 case CD_STATUS_PLAYING: |
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112 return CD_PLAYING; |
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113 // case CD_STATUS_SEEKING: |
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114 // case CD_STATUS_SCANING: |
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115 case CD_STATUS_OPEN: |
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116 case CD_STATUS_NO_DISC: |
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117 return CD_TRAYEMPTY; |
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118 default: |
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119 return CD_ERROR; |
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120 } |
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121 } |
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122 |
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123 /* Start play */ |
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124 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) |
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125 { |
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126 int ret = cdrom_cdda_play(start-150,start-150+length,1,CDDA_SECTORS); |
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127 return ret==ERR_OK?0:-1; |
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128 } |
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129 |
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130 /* Pause play */ |
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131 static int SDL_SYS_CDPause(SDL_CD *cdrom) |
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132 { |
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133 int ret=cdrom_cdda_pause(); |
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134 return ret==ERR_OK?0:-1; |
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135 } |
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136 |
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137 /* Resume play */ |
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138 static int SDL_SYS_CDResume(SDL_CD *cdrom) |
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139 { |
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140 int ret=cdrom_cdda_resume(); |
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141 return ret==ERR_OK?0:-1; |
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142 } |
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143 |
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144 /* Stop play */ |
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145 static int SDL_SYS_CDStop(SDL_CD *cdrom) |
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146 { |
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147 int ret=cdrom_spin_down(); |
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148 return ret==ERR_OK?0:-1; |
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149 } |
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150 |
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151 /* Eject the CD-ROM */ |
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152 static int SDL_SYS_CDEject(SDL_CD *cdrom) |
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153 { |
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154 return -1; |
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155 } |
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156 |
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157 /* Close the CD-ROM handle */ |
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158 static void SDL_SYS_CDClose(SDL_CD *cdrom) |
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159 { |
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160 } |
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161 |
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162 void SDL_SYS_CDQuit(void) |
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163 { |
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164 |
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165 } |
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166 |
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167 #endif /* SDL_CDROM_DC */ |