annotate src/cdrom/openbsd/SDL_syscdrom.c @ 1338:604d73db6802

Removed uses of stdlib.h and string.h
author Sam Lantinga <slouken@libsdl.org>
date Tue, 07 Feb 2006 09:29:18 +0000
parents 3692456e7b0f
children c71e05b4dc2e
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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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
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23 /* Functions for system-level CD-ROM audio control */
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24
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25 #include <sys/types.h>
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26 #include <sys/ioctl.h>
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27 #include <sys/stat.h>
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28 #include <fcntl.h>
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29 #include <errno.h>
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30 #include <unistd.h>
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31 #include <sys/ioctl.h>
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32 #include <sys/cdio.h>
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33
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34 #include "SDL_stdlib.h"
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35 #include "SDL_string.h"
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36 #include "SDL_error.h"
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37 #include "SDL_cdrom.h"
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38 #include "SDL_syscdrom.h"
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39
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40
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41 /* The maximum number of CD-ROM drives we'll detect */
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42 #define MAX_DRIVES 16
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43
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44 /* A list of available CD-ROM drives */
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45 static char *SDL_cdlist[MAX_DRIVES];
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46 static dev_t SDL_cdmode[MAX_DRIVES];
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47
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48 /* The system-dependent CD control functions */
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49 static const char *SDL_SYS_CDName(int drive);
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50 static int SDL_SYS_CDOpen(int drive);
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51 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
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52 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
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53 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
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54 static int SDL_SYS_CDPause(SDL_CD *cdrom);
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55 static int SDL_SYS_CDResume(SDL_CD *cdrom);
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56 static int SDL_SYS_CDStop(SDL_CD *cdrom);
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57 static int SDL_SYS_CDEject(SDL_CD *cdrom);
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58 static void SDL_SYS_CDClose(SDL_CD *cdrom);
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59
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60 /* Some ioctl() errno values which occur when the tray is empty */
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61 #define ERRNO_TRAYEMPTY(errno) \
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62 ((errno == EIO) || (errno == ENOENT) || (errno == EINVAL) || \
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63 (errno == ENODEV))
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64
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65 /* Check a drive to see if it is a CD-ROM */
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66 static int CheckDrive(char *drive, struct stat *stbuf)
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67 {
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68 int is_cd, cdfd;
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69 struct ioc_read_subchannel info;
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70
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71 /* If it doesn't exist, return -1 */
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72 if ( stat(drive, stbuf) < 0 ) {
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73 return(-1);
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74 }
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75
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76 /* If it does exist, verify that it's an available CD-ROM */
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77 is_cd = 0;
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78 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) {
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79 cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0);
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80 if ( cdfd >= 0 ) {
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81 info.address_format = CD_MSF_FORMAT;
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82 info.data_format = CD_CURRENT_POSITION;
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83 info.data_len = 0;
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84 info.data = NULL;
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85 /* Under Linux, EIO occurs when a disk is not present.
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86 This isn't 100% reliable, so we use the USE_MNTENT
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87 code above instead.
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88 */
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89 if ( (ioctl(cdfd, CDIOCREADSUBCHANNEL, &info) == 0) ||
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90 ERRNO_TRAYEMPTY(errno) ) {
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91 is_cd = 1;
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92 }
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93 close(cdfd);
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94 }
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95 else if (ERRNO_TRAYEMPTY(errno))
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96 is_cd = 1;
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97 }
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98 return(is_cd);
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99 }
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100
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101 /* Add a CD-ROM drive to our list of valid drives */
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102 static void AddDrive(char *drive, struct stat *stbuf)
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103 {
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104 int i;
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105
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106 if ( SDL_numcds < MAX_DRIVES ) {
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107 /* Check to make sure it's not already in our list.
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108 This can happen when we see a drive via symbolic link.
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109 */
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110 for ( i=0; i<SDL_numcds; ++i ) {
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111 if ( stbuf->st_rdev == SDL_cdmode[i] ) {
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112 #ifdef DEBUG_CDROM
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113 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]);
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114 #endif
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115 return;
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116 }
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117 }
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118
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119 /* Add this drive to our list */
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120 i = SDL_numcds;
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121 SDL_cdlist[i] = (char *)SDL_malloc(SDL_strlen(drive)+1);
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122 if ( SDL_cdlist[i] == NULL ) {
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123 SDL_OutOfMemory();
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124 return;
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125 }
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126 SDL_strcpy(SDL_cdlist[i], drive);
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127 SDL_cdmode[i] = stbuf->st_rdev;
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128 ++SDL_numcds;
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129 #ifdef DEBUG_CDROM
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130 fprintf(stderr, "Added CD-ROM drive: %s\n", drive);
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131 #endif
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132 }
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133 }
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134
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135 int SDL_SYS_CDInit(void)
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136 {
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137 static char *checklist[] = {
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138 #ifdef __OpenBSD__
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139 "?0 cd?c", "cdrom", NULL
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140 #elif defined(__NetBSD__)
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141 "?0 cd?d", "?0 cd?c", "cdrom", NULL
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142 #else
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143 "?0 cd?c", "?0 acd?c", "cdrom", NULL
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144 #endif
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145 };
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146 char *SDLcdrom;
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147 int i, j, exists;
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148 char drive[32];
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149 struct stat stbuf;
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150
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151 /* Fill in our driver capabilities */
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152 SDL_CDcaps.Name = SDL_SYS_CDName;
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153 SDL_CDcaps.Open = SDL_SYS_CDOpen;
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154 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
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155 SDL_CDcaps.Status = SDL_SYS_CDStatus;
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156 SDL_CDcaps.Play = SDL_SYS_CDPlay;
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157 SDL_CDcaps.Pause = SDL_SYS_CDPause;
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parents:
diff changeset
158 SDL_CDcaps.Resume = SDL_SYS_CDResume;
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parents:
diff changeset
159 SDL_CDcaps.Stop = SDL_SYS_CDStop;
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parents:
diff changeset
160 SDL_CDcaps.Eject = SDL_SYS_CDEject;
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parents:
diff changeset
161 SDL_CDcaps.Close = SDL_SYS_CDClose;
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parents:
diff changeset
162
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parents:
diff changeset
163 /* 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
164 SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */
0
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parents:
diff changeset
165 if ( SDLcdrom != NULL ) {
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parents:
diff changeset
166 char *cdpath, *delim;
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
167 cdpath = SDL_malloc(SDL_strlen(SDLcdrom)+1);
0
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parents:
diff changeset
168 if ( cdpath != NULL ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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parents: 1312
diff changeset
169 SDL_strcpy(cdpath, SDLcdrom);
0
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parents:
diff changeset
170 SDLcdrom = cdpath;
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parents:
diff changeset
171 do {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
172 delim = SDL_strchr(SDLcdrom, ':');
0
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parents:
diff changeset
173 if ( delim ) {
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parents:
diff changeset
174 *delim++ = '\0';
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parents:
diff changeset
175 }
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parents:
diff changeset
176 if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) {
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parents:
diff changeset
177 AddDrive(SDLcdrom, &stbuf);
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parents:
diff changeset
178 }
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parents:
diff changeset
179 if ( delim ) {
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parents:
diff changeset
180 SDLcdrom = delim;
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parents:
diff changeset
181 } else {
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parents:
diff changeset
182 SDLcdrom = NULL;
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parents:
diff changeset
183 }
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parents:
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184 } while ( SDLcdrom );
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3692456e7b0f Use SDL_ prefixed versions of C library functions.
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diff changeset
185 SDL_free(cdpath);
0
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parents:
diff changeset
186 }
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parents:
diff changeset
187
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parents:
diff changeset
188 /* If we found our drives, there's nothing left to do */
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parents:
diff changeset
189 if ( SDL_numcds > 0 ) {
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parents:
diff changeset
190 return(0);
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parents:
diff changeset
191 }
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parents:
diff changeset
192 }
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parents:
diff changeset
193
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parents:
diff changeset
194 /* Scan the system for CD-ROM drives */
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parents:
diff changeset
195 for ( i=0; checklist[i]; ++i ) {
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parents:
diff changeset
196 if ( checklist[i][0] == '?' ) {
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parents:
diff changeset
197 char *insert;
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parents:
diff changeset
198 exists = 1;
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parents:
diff changeset
199 for ( j=checklist[i][1]; exists; ++j ) {
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
200 SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", &checklist[i][3]);
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
201 insert = SDL_strchr(drive, '?');
0
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parents:
diff changeset
202 if ( insert != NULL ) {
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parents:
diff changeset
203 *insert = j;
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parents:
diff changeset
204 }
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parents:
diff changeset
205 switch (CheckDrive(drive, &stbuf)) {
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parents:
diff changeset
206 /* Drive exists and is a CD-ROM */
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parents:
diff changeset
207 case 1:
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parents:
diff changeset
208 AddDrive(drive, &stbuf);
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parents:
diff changeset
209 break;
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parents:
diff changeset
210 /* Drive exists, but isn't a CD-ROM */
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parents:
diff changeset
211 case 0:
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parents:
diff changeset
212 break;
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parents:
diff changeset
213 /* Drive doesn't exist */
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parents:
diff changeset
214 case -1:
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parents:
diff changeset
215 exists = 0;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 break;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
218 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219 } else {
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
220 SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", checklist[i]);
0
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parents:
diff changeset
221 if ( CheckDrive(drive, &stbuf) > 0 ) {
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parents:
diff changeset
222 AddDrive(drive, &stbuf);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
223 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
226 return(0);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
228
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parents:
diff changeset
229 /* General ioctl() CD-ROM command function */
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parents:
diff changeset
230 static int SDL_SYS_CDioctl(int id, int command, void *arg)
74212992fb08 Initial revision
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parents:
diff changeset
231 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232 int retval;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233
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parents:
diff changeset
234 retval = ioctl(id, command, arg);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 if ( retval < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 SDL_SetError("ioctl() error: %s", strerror(errno));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 return(retval);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
239 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241 static const char *SDL_SYS_CDName(int 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 return(SDL_cdlist[drive]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
244 }
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 static int SDL_SYS_CDOpen(int drive)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 return(open(SDL_cdlist[drive], (O_RDONLY|O_EXCL|O_NONBLOCK), 0));
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
249 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
252 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
253 struct ioc_toc_header toc;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 int i, okay;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 struct ioc_read_toc_entry entry;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
256 struct cd_toc_entry data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
257
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
258 okay = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
259 if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCHEADER, &toc) == 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
260 cdrom->numtracks = toc.ending_track-toc.starting_track+1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 if ( cdrom->numtracks > SDL_MAX_TRACKS ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 cdrom->numtracks = SDL_MAX_TRACKS;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 /* Read all the track TOC entries */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 for ( i=0; i<=cdrom->numtracks; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 if ( i == cdrom->numtracks ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 cdrom->track[i].id = 0xAA; /* CDROM_LEADOUT */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 cdrom->track[i].id = toc.starting_track+i;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 entry.starting_track = cdrom->track[i].id;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 entry.address_format = CD_MSF_FORMAT;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 entry.data_len = sizeof(data);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 entry.data = &data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCENTRYS,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 &entry) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 cdrom->track[i].type = data.control;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 cdrom->track[i].offset = MSF_TO_FRAMES(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 data.addr.msf.minute,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 data.addr.msf.second,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 data.addr.msf.frame);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 cdrom->track[i].length = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 if ( i > 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 cdrom->track[i-1].length =
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287 cdrom->track[i].offset-
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 cdrom->track[i-1].offset;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 if ( i == (cdrom->numtracks+1) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 okay = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 return(okay ? 0 : -1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 /* Get CD-ROM status */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302 CDstatus status;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 struct ioc_toc_header toc;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 struct ioc_read_subchannel info;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 struct cd_sub_channel_info data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307 info.address_format = CD_MSF_FORMAT;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 info.data_format = CD_CURRENT_POSITION;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 info.track = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 info.data_len = sizeof(data);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 info.data = &data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 if ( ioctl(cdrom->id, CDIOCREADSUBCHANNEL, &info) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 if ( ERRNO_TRAYEMPTY(errno) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314 status = CD_TRAYEMPTY;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316 status = CD_ERROR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
319 switch (data.header.audio_status) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 case CD_AS_AUDIO_INVALID:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 case CD_AS_NO_STATUS:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 /* Try to determine if there's a CD available */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323 if (ioctl(cdrom->id,CDIOREADTOCHEADER,&toc)==0)
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Sam Lantinga <slouken@lokigames.com>
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324 status = CD_STOPPED;
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325 else
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326 status = CD_TRAYEMPTY;
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327 break;
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328 case CD_AS_PLAY_COMPLETED:
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329 status = CD_STOPPED;
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330 break;
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331 case CD_AS_PLAY_IN_PROGRESS:
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332 status = CD_PLAYING;
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333 break;
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334 case CD_AS_PLAY_PAUSED:
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335 status = CD_PAUSED;
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336 break;
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337 default:
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338 status = CD_ERROR;
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339 break;
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340 }
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341 }
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342 if ( position ) {
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343 if ( status == CD_PLAYING || (status == CD_PAUSED) ) {
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344 *position = MSF_TO_FRAMES(
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345 data.what.position.absaddr.msf.minute,
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346 data.what.position.absaddr.msf.second,
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347 data.what.position.absaddr.msf.frame);
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348 } else {
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349 *position = 0;
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350 }
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351 }
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352 return(status);
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353 }
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354
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parents:
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355 /* Start play */
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356 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
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357 {
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358 struct ioc_play_msf playtime;
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359
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360 FRAMES_TO_MSF(start,
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parents:
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361 &playtime.start_m, &playtime.start_s, &playtime.start_f);
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parents:
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362 FRAMES_TO_MSF(start+length,
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parents:
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363 &playtime.end_m, &playtime.end_s, &playtime.end_f);
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parents:
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364 #ifdef DEBUG_CDROM
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parents:
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365 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n",
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parents:
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366 playtime.start_m, playtime.start_s, playtime.start_f,
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parents:
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367 playtime.end_m, playtime.end_s, playtime.end_f);
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parents:
diff changeset
368 #endif
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parents:
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369 ioctl(cdrom->id, CDIOCSTART, 0);
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parents:
diff changeset
370 return(SDL_SYS_CDioctl(cdrom->id, CDIOCPLAYMSF, &playtime));
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parents:
diff changeset
371 }
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parents:
diff changeset
372
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parents:
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373 /* Pause play */
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parents:
diff changeset
374 static int SDL_SYS_CDPause(SDL_CD *cdrom)
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parents:
diff changeset
375 {
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parents:
diff changeset
376 return(SDL_SYS_CDioctl(cdrom->id, CDIOCPAUSE, 0));
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parents:
diff changeset
377 }
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parents:
diff changeset
378
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parents:
diff changeset
379 /* Resume play */
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parents:
diff changeset
380 static int SDL_SYS_CDResume(SDL_CD *cdrom)
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parents:
diff changeset
381 {
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parents:
diff changeset
382 return(SDL_SYS_CDioctl(cdrom->id, CDIOCRESUME, 0));
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parents:
diff changeset
383 }
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parents:
diff changeset
384
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parents:
diff changeset
385 /* Stop play */
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parents:
diff changeset
386 static int SDL_SYS_CDStop(SDL_CD *cdrom)
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parents:
diff changeset
387 {
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parents:
diff changeset
388 return(SDL_SYS_CDioctl(cdrom->id, CDIOCSTOP, 0));
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parents:
diff changeset
389 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390
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parents:
diff changeset
391 /* Eject the CD-ROM */
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parents:
diff changeset
392 static int SDL_SYS_CDEject(SDL_CD *cdrom)
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 return(SDL_SYS_CDioctl(cdrom->id, CDIOCEJECT, 0));
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 /* Close the CD-ROM handle */
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parents:
diff changeset
398 static void SDL_SYS_CDClose(SDL_CD *cdrom)
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 close(cdrom->id);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 void SDL_SYS_CDQuit(void)
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 int i;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407 if ( SDL_numcds > 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408 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
409 SDL_free(SDL_cdlist[i]);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 SDL_numcds = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414