annotate src/cdrom/openbsd/SDL_syscdrom.c @ 1402:d910939febfa

Use consistent identifiers for the various platforms we support. Make sure every source file includes SDL_config.h, so the proper system headers are chosen.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 21 Feb 2006 08:46:50 +0000
parents c0a74f199ecf
children 92947e3a18db
rev   line source
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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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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 /* Functions for system-level CD-ROM audio control */
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25
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26 #include <sys/types.h>
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27 #include <sys/ioctl.h>
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28 #include <sys/stat.h>
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29 #include <fcntl.h>
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30 #include <errno.h>
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31 #include <unistd.h>
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32 #include <sys/ioctl.h>
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33 #include <sys/cdio.h>
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34
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35 #include "SDL_cdrom.h"
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36 #include "../SDL_syscdrom.h"
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37
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38
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39 /* The maximum number of CD-ROM drives we'll detect */
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40 #define MAX_DRIVES 16
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41
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42 /* A list of available CD-ROM drives */
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43 static char *SDL_cdlist[MAX_DRIVES];
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44 static dev_t SDL_cdmode[MAX_DRIVES];
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45
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46 /* The system-dependent CD control functions */
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47 static const char *SDL_SYS_CDName(int drive);
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48 static int SDL_SYS_CDOpen(int drive);
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49 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
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50 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
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51 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
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52 static int SDL_SYS_CDPause(SDL_CD *cdrom);
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53 static int SDL_SYS_CDResume(SDL_CD *cdrom);
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54 static int SDL_SYS_CDStop(SDL_CD *cdrom);
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55 static int SDL_SYS_CDEject(SDL_CD *cdrom);
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56 static void SDL_SYS_CDClose(SDL_CD *cdrom);
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57
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58 /* Some ioctl() errno values which occur when the tray is empty */
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59 #define ERRNO_TRAYEMPTY(errno) \
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60 ((errno == EIO) || (errno == ENOENT) || (errno == EINVAL) || \
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61 (errno == ENODEV))
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62
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63 /* Check a drive to see if it is a CD-ROM */
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64 static int CheckDrive(char *drive, struct stat *stbuf)
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65 {
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66 int is_cd, cdfd;
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67 struct ioc_read_subchannel info;
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68
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69 /* If it doesn't exist, return -1 */
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70 if ( stat(drive, stbuf) < 0 ) {
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71 return(-1);
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72 }
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73
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74 /* If it does exist, verify that it's an available CD-ROM */
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75 is_cd = 0;
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76 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) {
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77 cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0);
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78 if ( cdfd >= 0 ) {
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79 info.address_format = CD_MSF_FORMAT;
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80 info.data_format = CD_CURRENT_POSITION;
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81 info.data_len = 0;
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82 info.data = NULL;
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83 /* Under Linux, EIO occurs when a disk is not present.
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84 This isn't 100% reliable, so we use the USE_MNTENT
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85 code above instead.
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86 */
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87 if ( (ioctl(cdfd, CDIOCREADSUBCHANNEL, &info) == 0) ||
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88 ERRNO_TRAYEMPTY(errno) ) {
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89 is_cd = 1;
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90 }
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91 close(cdfd);
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92 }
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93 else if (ERRNO_TRAYEMPTY(errno))
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94 is_cd = 1;
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95 }
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96 return(is_cd);
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97 }
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98
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99 /* Add a CD-ROM drive to our list of valid drives */
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100 static void AddDrive(char *drive, struct stat *stbuf)
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101 {
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102 int i;
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103
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104 if ( SDL_numcds < MAX_DRIVES ) {
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105 /* Check to make sure it's not already in our list.
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106 This can happen when we see a drive via symbolic link.
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107 */
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108 for ( i=0; i<SDL_numcds; ++i ) {
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109 if ( stbuf->st_rdev == SDL_cdmode[i] ) {
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110 #ifdef DEBUG_CDROM
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111 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]);
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112 #endif
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113 return;
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114 }
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115 }
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116
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117 /* Add this drive to our list */
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118 i = SDL_numcds;
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119 SDL_cdlist[i] = SDL_strdup(drive);
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120 if ( SDL_cdlist[i] == NULL ) {
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121 SDL_OutOfMemory();
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122 return;
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123 }
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124 SDL_cdmode[i] = stbuf->st_rdev;
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125 ++SDL_numcds;
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126 #ifdef DEBUG_CDROM
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127 fprintf(stderr, "Added CD-ROM drive: %s\n", drive);
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128 #endif
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129 }
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130 }
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131
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132 int SDL_SYS_CDInit(void)
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133 {
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134 static char *checklist[] = {
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135 #if defined(__OPENBSD__)
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136 "?0 cd?c", "cdrom", NULL
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137 #elif defined(__NETBSD__)
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138 "?0 cd?d", "?0 cd?c", "cdrom", NULL
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139 #else
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140 "?0 cd?c", "?0 acd?c", "cdrom", NULL
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141 #endif
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142 };
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143 char *SDLcdrom;
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144 int i, j, exists;
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145 char drive[32];
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146 struct stat stbuf;
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147
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148 /* Fill in our driver capabilities */
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149 SDL_CDcaps.Name = SDL_SYS_CDName;
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150 SDL_CDcaps.Open = SDL_SYS_CDOpen;
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151 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
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152 SDL_CDcaps.Status = SDL_SYS_CDStatus;
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153 SDL_CDcaps.Play = SDL_SYS_CDPlay;
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154 SDL_CDcaps.Pause = SDL_SYS_CDPause;
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155 SDL_CDcaps.Resume = SDL_SYS_CDResume;
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156 SDL_CDcaps.Stop = SDL_SYS_CDStop;
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157 SDL_CDcaps.Eject = SDL_SYS_CDEject;
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parents:
diff changeset
158 SDL_CDcaps.Close = SDL_SYS_CDClose;
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parents:
diff changeset
159
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parents:
diff changeset
160 /* Look in the environment for our CD-ROM drive list */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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parents: 1312
diff changeset
161 SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */
0
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parents:
diff changeset
162 if ( SDLcdrom != NULL ) {
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parents:
diff changeset
163 char *cdpath, *delim;
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
164 size_t len = SDL_strlen(SDLcdrom)+1;
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parents: 1361
diff changeset
165 cdpath = SDL_stack_alloc(char, len);
0
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parents:
diff changeset
166 if ( cdpath != NULL ) {
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
167 SDL_strlcpy(cdpath, SDLcdrom, len);
0
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parents:
diff changeset
168 SDLcdrom = cdpath;
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parents:
diff changeset
169 do {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
170 delim = SDL_strchr(SDLcdrom, ':');
0
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parents:
diff changeset
171 if ( delim ) {
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parents:
diff changeset
172 *delim++ = '\0';
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parents:
diff changeset
173 }
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parents:
diff changeset
174 if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) {
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parents:
diff changeset
175 AddDrive(SDLcdrom, &stbuf);
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parents:
diff changeset
176 }
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parents:
diff changeset
177 if ( delim ) {
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parents:
diff changeset
178 SDLcdrom = delim;
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parents:
diff changeset
179 } else {
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parents:
diff changeset
180 SDLcdrom = NULL;
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parents:
diff changeset
181 }
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parents:
diff changeset
182 } while ( SDLcdrom );
1379
c0a74f199ecf Use only safe string functions
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diff changeset
183 SDL_stack_free(cdpath);
0
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parents:
diff changeset
184 }
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parents:
diff changeset
185
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parents:
diff changeset
186 /* If we found our drives, there's nothing left to do */
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parents:
diff changeset
187 if ( SDL_numcds > 0 ) {
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parents:
diff changeset
188 return(0);
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parents:
diff changeset
189 }
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parents:
diff changeset
190 }
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parents:
diff changeset
191
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parents:
diff changeset
192 /* Scan the system for CD-ROM drives */
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parents:
diff changeset
193 for ( i=0; checklist[i]; ++i ) {
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parents:
diff changeset
194 if ( checklist[i][0] == '?' ) {
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parents:
diff changeset
195 char *insert;
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parents:
diff changeset
196 exists = 1;
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parents:
diff changeset
197 for ( j=checklist[i][1]; exists; ++j ) {
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604d73db6802 Removed uses of stdlib.h and string.h
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parents: 1336
diff changeset
198 SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", &checklist[i][3]);
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3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
199 insert = SDL_strchr(drive, '?');
0
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parents:
diff changeset
200 if ( insert != NULL ) {
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parents:
diff changeset
201 *insert = j;
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parents:
diff changeset
202 }
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parents:
diff changeset
203 switch (CheckDrive(drive, &stbuf)) {
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parents:
diff changeset
204 /* Drive exists and is a CD-ROM */
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parents:
diff changeset
205 case 1:
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parents:
diff changeset
206 AddDrive(drive, &stbuf);
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parents:
diff changeset
207 break;
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parents:
diff changeset
208 /* Drive exists, but isn't a CD-ROM */
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parents:
diff changeset
209 case 0:
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parents:
diff changeset
210 break;
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parents:
diff changeset
211 /* Drive doesn't exist */
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parents:
diff changeset
212 case -1:
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parents:
diff changeset
213 exists = 0;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
214 break;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217 } else {
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
218 SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", checklist[i]);
0
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parents:
diff changeset
219 if ( CheckDrive(drive, &stbuf) > 0 ) {
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parents:
diff changeset
220 AddDrive(drive, &stbuf);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
221 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
222 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
223 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 return(0);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
226
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parents:
diff changeset
227 /* General ioctl() CD-ROM command function */
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parents:
diff changeset
228 static int SDL_SYS_CDioctl(int id, int command, void *arg)
74212992fb08 Initial revision
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parents:
diff changeset
229 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
230 int retval;
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parents:
diff changeset
231
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parents:
diff changeset
232 retval = ioctl(id, command, arg);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233 if ( retval < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234 SDL_SetError("ioctl() error: %s", strerror(errno));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 return(retval);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
239 static const char *SDL_SYS_CDName(int drive)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241 return(SDL_cdlist[drive]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
244 static int SDL_SYS_CDOpen(int drive)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
246 return(open(SDL_cdlist[drive], (O_RDONLY|O_EXCL|O_NONBLOCK), 0));
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
249 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 struct ioc_toc_header toc;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
252 int i, okay;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
253 struct ioc_read_toc_entry entry;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 struct cd_toc_entry data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
256 okay = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
257 if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCHEADER, &toc) == 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
258 cdrom->numtracks = toc.ending_track-toc.starting_track+1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
259 if ( cdrom->numtracks > SDL_MAX_TRACKS ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
260 cdrom->numtracks = SDL_MAX_TRACKS;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 /* Read all the track TOC entries */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 for ( i=0; i<=cdrom->numtracks; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 if ( i == cdrom->numtracks ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 cdrom->track[i].id = 0xAA; /* CDROM_LEADOUT */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 cdrom->track[i].id = toc.starting_track+i;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 entry.starting_track = cdrom->track[i].id;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270 entry.address_format = CD_MSF_FORMAT;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 entry.data_len = sizeof(data);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 entry.data = &data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCENTRYS,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 &entry) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 cdrom->track[i].type = data.control;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 cdrom->track[i].offset = MSF_TO_FRAMES(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 data.addr.msf.minute,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 data.addr.msf.second,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 data.addr.msf.frame);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 cdrom->track[i].length = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 if ( i > 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 cdrom->track[i-1].length =
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 cdrom->track[i].offset-
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 cdrom->track[i-1].offset;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 if ( i == (cdrom->numtracks+1) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 okay = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 return(okay ? 0 : -1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 /* Get CD-ROM status */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 CDstatus status;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 struct ioc_toc_header toc;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302 struct ioc_read_subchannel info;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 struct cd_sub_channel_info data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 info.address_format = CD_MSF_FORMAT;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 info.data_format = CD_CURRENT_POSITION;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307 info.track = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 info.data_len = sizeof(data);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 info.data = &data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 if ( ioctl(cdrom->id, CDIOCREADSUBCHANNEL, &info) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 if ( ERRNO_TRAYEMPTY(errno) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 status = CD_TRAYEMPTY;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314 status = CD_ERROR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 switch (data.header.audio_status) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318 case CD_AS_AUDIO_INVALID:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
319 case CD_AS_NO_STATUS:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 /* Try to determine if there's a CD available */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 if (ioctl(cdrom->id,CDIOREADTOCHEADER,&toc)==0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 status = CD_STOPPED;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323 else
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324 status = CD_TRAYEMPTY;
74212992fb08 Initial revision
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325 break;
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326 case CD_AS_PLAY_COMPLETED:
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327 status = CD_STOPPED;
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328 break;
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329 case CD_AS_PLAY_IN_PROGRESS:
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330 status = CD_PLAYING;
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331 break;
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332 case CD_AS_PLAY_PAUSED:
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333 status = CD_PAUSED;
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334 break;
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335 default:
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336 status = CD_ERROR;
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337 break;
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338 }
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339 }
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340 if ( position ) {
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341 if ( status == CD_PLAYING || (status == CD_PAUSED) ) {
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342 *position = MSF_TO_FRAMES(
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343 data.what.position.absaddr.msf.minute,
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344 data.what.position.absaddr.msf.second,
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345 data.what.position.absaddr.msf.frame);
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346 } else {
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347 *position = 0;
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348 }
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349 }
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350 return(status);
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351 }
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352
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353 /* Start play */
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354 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
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355 {
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356 struct ioc_play_msf playtime;
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357
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358 FRAMES_TO_MSF(start,
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359 &playtime.start_m, &playtime.start_s, &playtime.start_f);
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360 FRAMES_TO_MSF(start+length,
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parents:
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361 &playtime.end_m, &playtime.end_s, &playtime.end_f);
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362 #ifdef DEBUG_CDROM
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363 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n",
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364 playtime.start_m, playtime.start_s, playtime.start_f,
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365 playtime.end_m, playtime.end_s, playtime.end_f);
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366 #endif
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367 ioctl(cdrom->id, CDIOCSTART, 0);
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368 return(SDL_SYS_CDioctl(cdrom->id, CDIOCPLAYMSF, &playtime));
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369 }
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370
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parents:
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371 /* Pause play */
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parents:
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372 static int SDL_SYS_CDPause(SDL_CD *cdrom)
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373 {
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parents:
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374 return(SDL_SYS_CDioctl(cdrom->id, CDIOCPAUSE, 0));
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parents:
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375 }
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parents:
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376
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parents:
diff changeset
377 /* Resume play */
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parents:
diff changeset
378 static int SDL_SYS_CDResume(SDL_CD *cdrom)
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parents:
diff changeset
379 {
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parents:
diff changeset
380 return(SDL_SYS_CDioctl(cdrom->id, CDIOCRESUME, 0));
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parents:
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381 }
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parents:
diff changeset
382
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parents:
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383 /* Stop play */
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parents:
diff changeset
384 static int SDL_SYS_CDStop(SDL_CD *cdrom)
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parents:
diff changeset
385 {
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parents:
diff changeset
386 return(SDL_SYS_CDioctl(cdrom->id, CDIOCSTOP, 0));
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parents:
diff changeset
387 }
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parents:
diff changeset
388
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parents:
diff changeset
389 /* Eject the CD-ROM */
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parents:
diff changeset
390 static int SDL_SYS_CDEject(SDL_CD *cdrom)
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parents:
diff changeset
391 {
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parents:
diff changeset
392 return(SDL_SYS_CDioctl(cdrom->id, CDIOCEJECT, 0));
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parents:
diff changeset
393 }
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parents:
diff changeset
394
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parents:
diff changeset
395 /* Close the CD-ROM handle */
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parents:
diff changeset
396 static void SDL_SYS_CDClose(SDL_CD *cdrom)
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parents:
diff changeset
397 {
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parents:
diff changeset
398 close(cdrom->id);
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parents:
diff changeset
399 }
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parents:
diff changeset
400
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parents:
diff changeset
401 void SDL_SYS_CDQuit(void)
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parents:
diff changeset
402 {
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parents:
diff changeset
403 int i;
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parents:
diff changeset
404
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parents:
diff changeset
405 if ( SDL_numcds > 0 ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 for ( i=0; i<SDL_numcds; ++i ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
407 SDL_free(SDL_cdlist[i]);
0
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parents:
diff changeset
408 }
74212992fb08 Initial revision
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parents:
diff changeset
409 SDL_numcds = 0;
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parents:
diff changeset
410 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412