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0
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1 /*
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2 AIX audio module for SDL (Simple DirectMedia Layer)
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3 Copyright (C) 2000 Carsten Griwodz
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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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Carsten Griwodz
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20 griff@kom.tu-darmstadt.de
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21
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22 based on linux/SDL_syscdrom.c by Sam Lantinga
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23 */
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24
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25 #ifdef SAVE_RCSID
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26 static char rcsid =
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27 "@(#) $Id$";
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28 #endif
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29
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30 /* Functions for system-level CD-ROM audio control */
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31
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32 #define DEBUG_CDROM 1
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33
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34 #include <sys/types.h>
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35 #include <stdlib.h>
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36 #include <sys/stat.h>
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37 #include <fcntl.h>
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38 #include <stdio.h>
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39 #include <string.h>
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40 #include <errno.h>
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41 #include <unistd.h>
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42
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43 #include <sys/ioctl.h>
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44 #include <sys/devinfo.h>
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45 #include <sys/mntctl.h>
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46 #include <sys/statfs.h>
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47 #include <sys/vmount.h>
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48 #include <fstab.h>
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49 #include <sys/scdisk.h>
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50
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51 #include "SDL_error.h"
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52 #include "SDL_cdrom.h"
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53 #include "SDL_syscdrom.h"
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54
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55 /* The maximum number of CD-ROM drives we'll detect */
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56 #define MAX_DRIVES 16
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57
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58 /* A list of available CD-ROM drives */
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59 static char *SDL_cdlist[MAX_DRIVES];
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60 static dev_t SDL_cdmode[MAX_DRIVES];
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61
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62 /* The system-dependent CD control functions */
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63 static const char *SDL_SYS_CDName(int drive);
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64 static int SDL_SYS_CDOpen(int drive);
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65 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
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66 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
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67 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
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68 static int SDL_SYS_CDPause(SDL_CD *cdrom);
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69 static int SDL_SYS_CDResume(SDL_CD *cdrom);
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70 static int SDL_SYS_CDStop(SDL_CD *cdrom);
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71 static int SDL_SYS_CDEject(SDL_CD *cdrom);
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72 static void SDL_SYS_CDClose(SDL_CD *cdrom);
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73 static int SDL_SYS_CDioctl(int id, int command, void *arg);
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74
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75 /* Check a drive to see if it is a CD-ROM */
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76 static int CheckDrive(char *drive, struct stat *stbuf)
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77 {
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78 int is_cd;
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79 int cdfd;
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80 int ret;
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81 struct devinfo info;
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82
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83 /* If it doesn't exist, return -1 */
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84 if ( stat(drive, stbuf) < 0 ) {
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85 return -1;
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86 }
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87
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88 /* If it does exist, verify that it's an available CD-ROM */
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89 is_cd = 0;
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90 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) {
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91 cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0);
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92 if ( cdfd >= 0 ) {
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93 ret = SDL_SYS_CDioctl( cdfd, IOCINFO, &info );
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94 if ( ret < 0 ) {
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95 /* Some kind of error */
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96 is_cd = 0;
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97 } else {
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98 if ( info.devtype == DD_CDROM ) {
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99 is_cd = 1;
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100 } else {
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101 is_cd = 0;
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102 }
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103 }
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104 close(cdfd);
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105 }
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106 #ifdef DEBUG_CDROM
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107 else
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108 {
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109 fprintf(stderr, "Could not open drive %s (%s)\n", drive, strerror(errno));
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110 }
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111 #endif
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112 }
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113 return is_cd;
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114 }
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115
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116 /* Add a CD-ROM drive to our list of valid drives */
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117 static void AddDrive(char *drive, struct stat *stbuf)
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118 {
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119 int i;
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120
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121 if ( SDL_numcds < MAX_DRIVES ) {
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122 /* Check to make sure it's not already in our list.
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123 This can happen when we see a drive via symbolic link.
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124 */
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125 for ( i=0; i<SDL_numcds; ++i ) {
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126 if ( stbuf->st_rdev == SDL_cdmode[i] ) {
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127 #ifdef DEBUG_CDROM
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128 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]);
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129 #endif
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130 return;
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131 }
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132 }
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133
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134 /* Add this drive to our list */
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135 i = SDL_numcds;
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136 SDL_cdlist[i] = (char *)malloc(strlen(drive)+1);
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137 if ( SDL_cdlist[i] == NULL ) {
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138 SDL_OutOfMemory();
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139 return;
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140 }
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141 strcpy(SDL_cdlist[i], drive);
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142 SDL_cdmode[i] = stbuf->st_rdev;
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143 ++SDL_numcds;
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144 #ifdef DEBUG_CDROM
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145 fprintf(stderr, "Added CD-ROM drive: %s\n", drive);
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146 #endif
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147 }
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148 }
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149
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150 static void CheckMounts()
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151 {
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152 char* buffer;
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153 int bufsz;
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154 struct vmount* ptr;
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155 int ret;
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156
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157 buffer = (char*)malloc(10);
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158 bufsz = 10;
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159 if ( buffer==NULL )
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160 {
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161 fprintf(stderr, "Could not allocate 10 bytes in aix/SDL_syscdrom.c:CheckMounts\n" );
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162 exit ( -10 );
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163 }
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164
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165 do
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166 {
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167 /* mntctrl() returns an array of all mounted filesystems */
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168 ret = mntctl ( MCTL_QUERY, bufsz, buffer );
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169 if ( ret == 0 )
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170 {
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171 /* Buffer was too small, realloc. */
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172 bufsz = *(int*)buffer; /* Required size is in first word. */
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173 /* (whatever a word is in AIX 4.3.3) */
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174 /* int seems to be OK in 32bit mode. */
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175 free(buffer);
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176 buffer = (char*)malloc(bufsz);
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177 if ( buffer==NULL )
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178 {
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179 fprintf(stderr,
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180 "Could not allocate %d bytes in aix/SDL_syscdrom.c:CheckMounts\n",
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181 bufsz );
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182 exit ( -10 );
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183 }
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184 }
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185 else if ( ret < 0 )
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186 {
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187 #ifdef DEBUG_CDROM
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188 fprintf(stderr, "Error reading vmount structures\n");
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189 #endif
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190 return;
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191 }
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192 }
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193 while ( ret == 0 );
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194
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195 #ifdef DEBUG_CDROM
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196 fprintf ( stderr, "Read %d vmount structures\n",ret );
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197 #endif
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198 ptr = (struct vmount*)buffer;
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199 do
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200 {
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201 switch(ptr->vmt_gfstype)
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202 {
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203 case MNT_CDROM :
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204 {
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205 struct stat stbuf;
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206 char* text;
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207
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208 text = (char*)ptr + ptr->vmt_data[VMT_OBJECT].vmt_off;
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209 #ifdef DEBUG_CDROM
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210 fprintf(stderr, "Checking mount path: %s mounted on %s\n",
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211 text, (char*)ptr + ptr->vmt_data[VMT_STUB].vmt_off );
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212 #endif
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213 if ( CheckDrive( text, &stbuf) > 0)
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214 {
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215 AddDrive( text, &stbuf);
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216 }
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217 }
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218 break;
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219 default :
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220 break;
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221 }
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222 ptr = (struct vmount*)((char*)ptr + ptr->vmt_length);
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223 ret--;
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224 }
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225 while ( ret > 0 );
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226
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227 free ( buffer );
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228 }
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229
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230 static int CheckNonmounts()
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231 {
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232 #ifdef _THREAD_SAFE
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233 AFILE_t fsFile = NULL;
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234 int passNo = 0;
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235 int ret;
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236 struct fstab entry;
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237 struct stat stbuf;
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238
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239 ret = setfsent_r( &fsFile, &passNo );
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240 if ( ret != 0 ) return -1;
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241 do
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242 {
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243 ret = getfsent_r ( &entry, &fsFile, &passNo );
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244 if ( ret == 0 ) {
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245 char* l = strrchr(entry.fs_spec,'/');
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246 if ( l != NULL ) {
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247 if ( !strncmp("cd",++l,2) ) {
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248 #ifdef DEBUG_CDROM
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249 fprintf(stderr,
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250 "Found unmounted CD ROM drive with device name %s\n",
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251 entry.fs_spec);
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252 #endif
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253 if ( CheckDrive( entry.fs_spec, &stbuf) > 0)
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254 {
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255 AddDrive( entry.fs_spec, &stbuf);
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256 }
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257 }
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258 }
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259 }
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260 }
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261 while ( ret == 0 );
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262 ret = endfsent_r ( &fsFile );
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263 if ( ret != 0 ) return -1;
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264 return 0;
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265 #else
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266 struct fstab* entry;
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267 struct stat stbuf;
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268
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269 setfsent();
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270 do
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271 {
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272 entry = getfsent();
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273 if ( entry != NULL ) {
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274 char* l = strrchr(entry->fs_spec,'/');
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275 if ( l != NULL ) {
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276 if ( !strncmp("cd",++l,2) ) {
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277 #ifdef DEBUG_CDROM
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278 fprintf(stderr,"Found unmounted CD ROM drive with device name %s", entry->fs_spec);
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279 #endif
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280 if ( CheckDrive( entry->fs_spec, &stbuf) > 0)
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281 {
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282 AddDrive( entry->fs_spec, &stbuf);
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283 }
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284 }
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285 }
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286 }
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287 }
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288 while ( entry != NULL );
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289 endfsent();
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290 #endif
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291 }
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292
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293 int SDL_SYS_CDInit(void)
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294 {
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295 char *SDLcdrom;
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296 struct stat stbuf;
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297
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298 /* Fill in our driver capabilities */
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299 SDL_CDcaps.Name = SDL_SYS_CDName;
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300 SDL_CDcaps.Open = SDL_SYS_CDOpen;
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301 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
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302 SDL_CDcaps.Status = SDL_SYS_CDStatus;
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303 SDL_CDcaps.Play = SDL_SYS_CDPlay;
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304 SDL_CDcaps.Pause = SDL_SYS_CDPause;
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305 SDL_CDcaps.Resume = SDL_SYS_CDResume;
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306 SDL_CDcaps.Stop = SDL_SYS_CDStop;
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307 SDL_CDcaps.Eject = SDL_SYS_CDEject;
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308 SDL_CDcaps.Close = SDL_SYS_CDClose;
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309
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310 /* Look in the environment for our CD-ROM drive list */
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311 SDLcdrom = getenv("SDL_CDROM"); /* ':' separated list of devices */
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312 if ( SDLcdrom != NULL ) {
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313 char *cdpath, *delim;
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314 cdpath = malloc(strlen(SDLcdrom)+1);
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315 if ( cdpath != NULL ) {
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316 strcpy(cdpath, SDLcdrom);
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317 SDLcdrom = cdpath;
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318 do {
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319 delim = strchr(SDLcdrom, ':');
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320 if ( delim ) {
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321 *delim++ = '\0';
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322 }
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323 #ifdef DEBUG_CDROM
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324 fprintf(stderr, "Checking CD-ROM drive from SDL_CDROM: %s\n", SDLcdrom);
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325 #endif
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326 if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) {
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327 AddDrive(SDLcdrom, &stbuf);
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328 }
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329 if ( delim ) {
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330 SDLcdrom = delim;
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331 } else {
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332 SDLcdrom = NULL;
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333 }
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334 } while ( SDLcdrom );
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335 free(cdpath);
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336 }
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337
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338 /* If we found our drives, there's nothing left to do */
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339 if ( SDL_numcds > 0 ) {
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340 return(0);
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341 }
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342 }
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343
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344 CheckMounts();
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345 CheckNonmounts();
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346
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347 return 0;
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348 }
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349
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350 /* General ioctl() CD-ROM command function */
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351 static int SDL_SYS_CDioctl(int id, int command, void *arg)
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352 {
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353 int retval;
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354
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355 retval = ioctl(id, command, arg);
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356 if ( retval < 0 ) {
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357 SDL_SetError("ioctl() error: %s", strerror(errno));
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358 }
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359 return retval;
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360 }
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361
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362 static const char *SDL_SYS_CDName(int drive)
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363 {
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364 return(SDL_cdlist[drive]);
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365 }
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366
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367 static int SDL_SYS_CDOpen(int drive)
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368 {
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369 int fd;
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370 char* lastsl;
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371 char* cdromname;
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372
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373 /*
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374 * We found /dev/cd? drives and that is in our list. But we can
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375 * open only the /dev/rcd? versions of those devices for Audio CD.
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376 */
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377 cdromname = (char*)malloc( strlen(SDL_cdlist[drive]+2) );
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378 strcpy(cdromname,SDL_cdlist[drive]);
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379 lastsl = strrchr(cdromname,'/');
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380 if (lastsl) {
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381 *lastsl = 0;
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382 strcat(cdromname,"/r");
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383 lastsl = strrchr(SDL_cdlist[drive],'/');
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384 if (lastsl) {
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385 lastsl++;
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386 strcat(cdromname,lastsl);
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387 }
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388 }
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389
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390 #ifdef DEBUG_CDROM
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391 fprintf(stderr, "Should open drive %s, opening %s\n", SDL_cdlist[drive], cdromname);
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392 #endif
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393
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394 /*
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395 * Use exclusive access. Don't use SC_DIAGNOSTICS as xmcd does because they
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396 * require root priviledges, and we don't want that. SC_SINGLE provides
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397 * exclusive access with less trouble.
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398 */
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399 fd = openx(cdromname, O_RDONLY, NULL, SC_SINGLE);
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400 if ( fd < 0 )
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401 {
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402 #ifdef DEBUG_CDROM
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403 fprintf(stderr, "Could not open drive %s (%s)\n", cdromname, strerror(errno));
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404 #endif
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405 }
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406 else
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407 {
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408 struct mode_form_op cdMode;
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409 int ret;
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410 #ifdef DEBUG_CDROM
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411 cdMode.action = CD_GET_MODE;
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412 ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode);
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413 if ( ret < 0 ) {
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414 fprintf(stderr,
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415 "Could not get drive mode for %s (%s)\n",
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416 cdromname, strerror(errno));
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417 } else {
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418 switch(cdMode.cd_mode_form) {
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419 case CD_MODE1 :
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420 fprintf(stderr,
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421 "Drive mode for %s is %s\n",
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422 cdromname, "CD-ROM Data Mode 1");
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423 break;
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424 case CD_MODE2_FORM1 :
|
|
|
425 fprintf(stderr,
|
|
|
426 "Drive mode for %s is %s\n",
|
|
|
427 cdromname, "CD-ROM XA Data Mode 2 Form 1");
|
|
|
428 break;
|
|
|
429 case CD_MODE2_FORM2 :
|
|
|
430 fprintf(stderr,
|
|
|
431 "Drive mode for %s is %s\n",
|
|
|
432 cdromname, "CD-ROM XA Data Mode 2 Form 2");
|
|
|
433 break;
|
|
|
434 case CD_DA :
|
|
|
435 fprintf(stderr,
|
|
|
436 "Drive mode for %s is %s\n",
|
|
|
437 cdromname, "CD-DA");
|
|
|
438 break;
|
|
|
439 default :
|
|
|
440 fprintf(stderr,
|
|
|
441 "Drive mode for %s is %s\n",
|
|
|
442 cdromname, "unknown");
|
|
|
443 break;
|
|
|
444 }
|
|
|
445 }
|
|
|
446 #endif
|
|
|
447
|
|
|
448 cdMode.action = CD_CHG_MODE;
|
|
|
449 cdMode.cd_mode_form = CD_DA;
|
|
|
450 ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode);
|
|
|
451 if ( ret < 0 ) {
|
|
|
452 #ifdef DEBUG_CDROM
|
|
|
453 fprintf(stderr,
|
|
|
454 "Could not set drive mode for %s (%s)\n",
|
|
|
455 cdromname, strerror(errno));
|
|
|
456 #endif
|
|
|
457 SDL_SetError("ioctl() error: Could not set CD drive mode, %s",
|
|
|
458 strerror(errno));
|
|
|
459 } else {
|
|
|
460 #ifdef DEBUG_CDROM
|
|
|
461 fprintf(stderr,
|
|
|
462 "Drive mode for %s set to CD_DA\n",
|
|
|
463 cdromname);
|
|
|
464 #endif
|
|
|
465 }
|
|
|
466 }
|
|
|
467 free(cdromname);
|
|
|
468 return fd;
|
|
|
469 }
|
|
|
470
|
|
|
471 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
|
|
|
472 {
|
|
|
473 struct cd_audio_cmd cmd;
|
|
|
474 struct cd_audio_cmd entry;
|
|
|
475 int i;
|
|
|
476 int okay;
|
|
|
477
|
|
|
478 cmd.audio_cmds = CD_TRK_INFO_AUDIO;
|
|
|
479 cmd.msf_flag = FALSE;
|
|
|
480 if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) {
|
|
|
481 return -1;
|
|
|
482 }
|
|
|
483
|
|
|
484 okay = 0;
|
|
|
485 cdrom->numtracks = cmd.indexing.track_index.last_track
|
|
|
486 - cmd.indexing.track_index.first_track+1;
|
|
|
487 if ( cdrom->numtracks > SDL_MAX_TRACKS ) {
|
|
|
488 cdrom->numtracks = SDL_MAX_TRACKS;
|
|
|
489 }
|
|
|
490
|
|
|
491 /* Read all the track TOC entries */
|
|
|
492 for ( i=0; i<=cdrom->numtracks; ++i ) {
|
|
|
493 if ( i == cdrom->numtracks ) {
|
|
|
494 cdrom->track[i].id = 0xAA;;
|
|
|
495 } else {
|
|
|
496 cdrom->track[i].id = cmd.indexing.track_index.first_track+i;
|
|
|
497 }
|
|
|
498 entry.audio_cmds = CD_GET_TRK_MSF;
|
|
|
499 entry.indexing.track_msf.track = cdrom->track[i].id;
|
|
|
500 if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &entry) < 0 ) {
|
|
|
501 break;
|
|
|
502 } else {
|
|
|
503 cdrom->track[i].type = 0; /* don't know how to detect 0x04 data track */
|
|
|
504 cdrom->track[i].offset = MSF_TO_FRAMES(
|
|
|
505 entry.indexing.track_msf.mins,
|
|
|
506 entry.indexing.track_msf.secs,
|
|
|
507 entry.indexing.track_msf.frames);
|
|
|
508 cdrom->track[i].length = 0;
|
|
|
509 if ( i > 0 ) {
|
|
|
510 cdrom->track[i-1].length = cdrom->track[i].offset
|
|
|
511 - cdrom->track[i-1].offset;
|
|
|
512 }
|
|
|
513 }
|
|
|
514 }
|
|
|
515 if ( i == (cdrom->numtracks+1) ) {
|
|
|
516 okay = 1;
|
|
|
517 }
|
|
|
518 return(okay ? 0 : -1);
|
|
|
519 }
|
|
|
520
|
|
|
521 /* Get CD-ROM status */
|
|
|
522 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
|
|
|
523 {
|
|
|
524 CDstatus status;
|
|
|
525 struct cd_audio_cmd cmd;
|
|
|
526 cmd.audio_cmds = CD_INFO_AUDIO;
|
|
|
527
|
|
|
528 if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) {
|
|
|
529 #ifdef DEBUG_CDROM
|
|
|
530 fprintf(stderr, "ioctl failed in SDL_SYS_CDStatus (%s)\n", SDL_GetError());
|
|
|
531 #endif
|
|
|
532 status = CD_ERROR;
|
|
|
533 } else {
|
|
|
534 switch (cmd.status) {
|
|
|
535 case CD_NO_AUDIO:
|
|
|
536 case CD_COMPLETED:
|
|
|
537 status = CD_STOPPED;
|
|
|
538 break;
|
|
|
539 case CD_PLAY_AUDIO:
|
|
|
540 status = CD_PLAYING;
|
|
|
541 break;
|
|
|
542 case CD_PAUSE_AUDIO:
|
|
|
543 status = CD_PAUSED;
|
|
|
544 break;
|
|
|
545 case CD_NOT_VALID:
|
|
|
546 #ifdef DEBUG_CDROM
|
|
|
547 fprintf(stderr, "cdStatus failed with CD_NOT_VALID\n");
|
|
|
548 #endif
|
|
|
549 status = CD_ERROR;
|
|
|
550 break;
|
|
|
551 case CD_STATUS_ERROR:
|
|
|
552 #ifdef DEBUG_CDROM
|
|
|
553 fprintf(stderr, "cdStatus failed with CD_STATUS_ERROR\n");
|
|
|
554 #endif
|
|
|
555 status = CD_ERROR;
|
|
|
556 break;
|
|
|
557 default:
|
|
|
558 #ifdef DEBUG_CDROM
|
|
|
559 fprintf(stderr, "cdStatus failed with unknown error\n");
|
|
|
560 #endif
|
|
|
561 status = CD_ERROR;
|
|
|
562 break;
|
|
|
563 }
|
|
|
564 }
|
|
|
565 if ( position ) {
|
|
|
566 if ( status == CD_PLAYING || (status == CD_PAUSED) ) {
|
|
|
567 *position = MSF_TO_FRAMES( cmd.indexing.info_audio.current_mins,
|
|
|
568 cmd.indexing.info_audio.current_secs,
|
|
|
569 cmd.indexing.info_audio.current_frames);
|
|
|
570 } else {
|
|
|
571 *position = 0;
|
|
|
572 }
|
|
|
573 }
|
|
|
574 return status;
|
|
|
575 }
|
|
|
576
|
|
|
577 /* Start play */
|
|
|
578 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
|
|
|
579 {
|
|
|
580 struct cd_audio_cmd cmd;
|
|
|
581
|
|
|
582 /*
|
|
|
583 * My CD Rom is muted by default. I think I read that this is new with
|
|
|
584 * AIX 4.3. SDL does not change the volume, so I need a kludge. Maybe
|
|
|
585 * its better to do this elsewhere?
|
|
|
586 */
|
|
|
587 cmd.audio_cmds = CD_PLAY_AUDIO | CD_SET_VOLUME;
|
|
|
588 cmd.msf_flag = TRUE;
|
|
|
589 FRAMES_TO_MSF(start,
|
|
|
590 &cmd.indexing.msf.first_mins,
|
|
|
591 &cmd.indexing.msf.first_secs,
|
|
|
592 &cmd.indexing.msf.first_frames);
|
|
|
593 FRAMES_TO_MSF(start+length,
|
|
|
594 &cmd.indexing.msf.last_mins,
|
|
|
595 &cmd.indexing.msf.last_secs,
|
|
|
596 &cmd.indexing.msf.last_frames);
|
|
|
597 cmd.volume_type = CD_VOLUME_ALL;
|
|
|
598 cmd.all_channel_vol = 255; /* This is a uchar. What is a good value? No docu! */
|
|
|
599 cmd.out_port_0_sel = CD_AUDIO_CHNL_0;
|
|
|
600 cmd.out_port_1_sel = CD_AUDIO_CHNL_1;
|
|
|
601 cmd.out_port_2_sel = CD_AUDIO_CHNL_2;
|
|
|
602 cmd.out_port_3_sel = CD_AUDIO_CHNL_3;
|
|
|
603
|
|
|
604 #ifdef DEBUG_CDROM
|
|
|
605 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n",
|
|
|
606 cmd.indexing.msf.first_mins,
|
|
|
607 cmd.indexing.msf.first_secs,
|
|
|
608 cmd.indexing.msf.first_frames,
|
|
|
609 cmd.indexing.msf.last_mins,
|
|
|
610 cmd.indexing.msf.last_secs,
|
|
|
611 cmd.indexing.msf.last_frames);
|
|
|
612 #endif
|
|
|
613 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd));
|
|
|
614 }
|
|
|
615
|
|
|
616 /* Pause play */
|
|
|
617 static int SDL_SYS_CDPause(SDL_CD *cdrom)
|
|
|
618 {
|
|
|
619 struct cd_audio_cmd cmd;
|
|
|
620 cmd.audio_cmds = CD_PAUSE_AUDIO;
|
|
|
621 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd));
|
|
|
622 }
|
|
|
623
|
|
|
624 /* Resume play */
|
|
|
625 static int SDL_SYS_CDResume(SDL_CD *cdrom)
|
|
|
626 {
|
|
|
627 struct cd_audio_cmd cmd;
|
|
|
628 cmd.audio_cmds = CD_RESUME_AUDIO;
|
|
|
629 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd));
|
|
|
630 }
|
|
|
631
|
|
|
632 /* Stop play */
|
|
|
633 static int SDL_SYS_CDStop(SDL_CD *cdrom)
|
|
|
634 {
|
|
|
635 struct cd_audio_cmd cmd;
|
|
|
636 cmd.audio_cmds = CD_STOP_AUDIO;
|
|
|
637 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd));
|
|
|
638 }
|
|
|
639
|
|
|
640 /* Eject the CD-ROM */
|
|
|
641 static int SDL_SYS_CDEject(SDL_CD *cdrom)
|
|
|
642 {
|
|
|
643 return(SDL_SYS_CDioctl(cdrom->id, DKEJECT, 0));
|
|
|
644 }
|
|
|
645
|
|
|
646 /* Close the CD-ROM handle */
|
|
|
647 static void SDL_SYS_CDClose(SDL_CD *cdrom)
|
|
|
648 {
|
|
|
649 close(cdrom->id);
|
|
|
650 }
|
|
|
651
|
|
|
652 void SDL_SYS_CDQuit(void)
|
|
|
653 {
|
|
|
654 int i;
|
|
|
655
|
|
|
656 if ( SDL_numcds > 0 ) {
|
|
|
657 for ( i=0; i<SDL_numcds; ++i ) {
|
|
|
658 free(SDL_cdlist[i]);
|
|
|
659 }
|
|
|
660 SDL_numcds = 0;
|
|
|
661 }
|
|
|
662 }
|
|
|
663
|
