Mercurial > sdl-ios-xcode
annotate src/cdrom/linux/SDL_syscdrom.c @ 1336:3692456e7b0f
Use SDL_ prefixed versions of C library functions.
FIXME:
Change #include <stdlib.h> to #include "SDL_stdlib.h"
Change #include <string.h> to #include "SDL_string.h"
Make sure nothing else broke because of this...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 07 Feb 2006 06:59:48 +0000 |
| parents | c9b51268668f |
| children | 604d73db6802 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1062
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1062
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1062
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1062
diff
changeset
|
13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1062
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1062
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1062
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
247
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* Functions for system-level CD-ROM audio control */ | |
| 24 | |
| 25 #include <sys/types.h> | |
| 26 #include <stdlib.h> | |
| 27 #include <sys/stat.h> | |
| 28 #include <sys/ioctl.h> | |
| 29 #include <fcntl.h> | |
| 30 #include <stdio.h> | |
| 31 #include <string.h> | |
| 32 #include <errno.h> | |
| 33 #include <unistd.h> | |
| 34 #ifdef __linux__ | |
|
1062
3e637850c02b
Date: Tue, 22 Mar 2005 23:50:20 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
1051
diff
changeset
|
35 #ifdef HAVE_LINUX_VERSION_H |
|
998
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
36 /* linux 2.6.9 workaround */ |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
37 #include <linux/version.h> |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
38 #if LINUX_VERSION_CODE == KERNEL_VERSION(2,6,9) |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
39 #include <asm/types.h> |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
40 #define __le64 __u64 |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
41 #define __le32 __u32 |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
42 #define __le16 __u16 |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
43 #define __be64 __u64 |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
44 #define __be32 __u32 |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
45 #define __be16 __u16 |
|
0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
46 #endif /* linux 2.6.9 workaround */ |
|
1062
3e637850c02b
Date: Tue, 22 Mar 2005 23:50:20 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
1051
diff
changeset
|
47 #endif /* HAVE_LINUX_VERSION_H */ |
| 0 | 48 #include <linux/cdrom.h> |
| 49 #endif | |
| 50 #ifdef __SVR4 | |
| 51 #include <sys/cdio.h> | |
| 52 #endif | |
| 53 | |
| 54 /* Define this to use the alternative getmntent() code */ | |
| 55 #ifndef __SVR4 | |
| 56 #define USE_MNTENT | |
| 57 #endif | |
| 58 | |
| 59 #ifdef USE_MNTENT | |
| 60 #if defined(__USLC__) | |
| 61 #include <sys/mntent.h> | |
| 62 #else | |
| 63 #include <mntent.h> | |
| 64 #endif | |
| 65 | |
| 66 #ifndef _PATH_MNTTAB | |
| 67 #ifdef MNTTAB | |
| 68 #define _PATH_MNTTAB MNTTAB | |
| 69 #else | |
| 70 #define _PATH_MNTTAB "/etc/fstab" | |
| 71 #endif | |
| 72 #endif /* !_PATH_MNTTAB */ | |
| 73 | |
| 74 #ifndef _PATH_MOUNTED | |
| 75 #define _PATH_MOUNTED "/etc/mtab" | |
| 76 #endif /* !_PATH_MOUNTED */ | |
| 77 | |
| 78 #ifndef MNTTYPE_CDROM | |
| 79 #define MNTTYPE_CDROM "iso9660" | |
| 80 #endif | |
| 81 #ifndef MNTTYPE_SUPER | |
| 82 #define MNTTYPE_SUPER "supermount" | |
| 83 #endif | |
| 84 #endif /* USE_MNTENT */ | |
| 85 | |
| 86 #include "SDL_error.h" | |
| 87 #include "SDL_cdrom.h" | |
| 88 #include "SDL_syscdrom.h" | |
| 89 | |
| 90 | |
| 91 /* The maximum number of CD-ROM drives we'll detect */ | |
| 92 #define MAX_DRIVES 16 | |
| 93 | |
| 94 /* A list of available CD-ROM drives */ | |
| 95 static char *SDL_cdlist[MAX_DRIVES]; | |
| 96 static dev_t SDL_cdmode[MAX_DRIVES]; | |
| 97 | |
| 98 /* The system-dependent CD control functions */ | |
| 99 static const char *SDL_SYS_CDName(int drive); | |
| 100 static int SDL_SYS_CDOpen(int drive); | |
| 101 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 102 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 103 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 104 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 105 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 106 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 107 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 108 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 109 | |
| 110 /* Some ioctl() errno values which occur when the tray is empty */ | |
|
396
11d6eed68dba
Added check for ENOMEDIUM to the Linux CDROM code
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
111 #ifndef ENOMEDIUM |
|
11d6eed68dba
Added check for ENOMEDIUM to the Linux CDROM code
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
112 #define ENOMEDIUM ENOENT |
|
11d6eed68dba
Added check for ENOMEDIUM to the Linux CDROM code
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
113 #endif |
| 0 | 114 #define ERRNO_TRAYEMPTY(errno) \ |
|
396
11d6eed68dba
Added check for ENOMEDIUM to the Linux CDROM code
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
115 ((errno == EIO) || (errno == ENOENT) || \ |
|
11d6eed68dba
Added check for ENOMEDIUM to the Linux CDROM code
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
116 (errno == EINVAL) || (errno == ENOMEDIUM)) |
| 0 | 117 |
| 118 /* Check a drive to see if it is a CD-ROM */ | |
| 119 static int CheckDrive(char *drive, char *mnttype, struct stat *stbuf) | |
| 120 { | |
| 121 int is_cd, cdfd; | |
| 122 struct cdrom_subchnl info; | |
| 123 | |
| 124 /* If it doesn't exist, return -1 */ | |
| 125 if ( stat(drive, stbuf) < 0 ) { | |
| 126 return(-1); | |
| 127 } | |
| 128 | |
| 129 /* If it does exist, verify that it's an available CD-ROM */ | |
| 130 is_cd = 0; | |
| 131 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { | |
|
1051
091350827e08
SDL_CDOpen() fails on Linux if data track on disc is mounted in the
Ryan C. Gordon <icculus@icculus.org>
parents:
998
diff
changeset
|
132 cdfd = open(drive, (O_RDONLY|O_NONBLOCK), 0); |
| 0 | 133 if ( cdfd >= 0 ) { |
| 134 info.cdsc_format = CDROM_MSF; | |
| 135 /* Under Linux, EIO occurs when a disk is not present. | |
| 136 */ | |
| 137 if ( (ioctl(cdfd, CDROMSUBCHNL, &info) == 0) || | |
| 138 ERRNO_TRAYEMPTY(errno) ) { | |
| 139 is_cd = 1; | |
| 140 } | |
| 141 close(cdfd); | |
| 142 } | |
| 143 #ifdef USE_MNTENT | |
| 144 /* Even if we can't read it, it might be mounted */ | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
145 else if ( mnttype && (SDL_strcmp(mnttype, MNTTYPE_CDROM) == 0) ) { |
| 0 | 146 is_cd = 1; |
| 147 } | |
| 148 #endif | |
| 149 } | |
| 150 return(is_cd); | |
| 151 } | |
| 152 | |
| 153 /* Add a CD-ROM drive to our list of valid drives */ | |
| 154 static void AddDrive(char *drive, struct stat *stbuf) | |
| 155 { | |
| 156 int i; | |
| 157 | |
| 158 if ( SDL_numcds < MAX_DRIVES ) { | |
| 159 /* Check to make sure it's not already in our list. | |
| 160 This can happen when we see a drive via symbolic link. | |
| 161 */ | |
| 162 for ( i=0; i<SDL_numcds; ++i ) { | |
| 163 if ( stbuf->st_rdev == SDL_cdmode[i] ) { | |
| 164 #ifdef DEBUG_CDROM | |
| 165 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); | |
| 166 #endif | |
| 167 return; | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 /* Add this drive to our list */ | |
| 172 i = SDL_numcds; | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
173 SDL_cdlist[i] = (char *)SDL_malloc(SDL_strlen(drive)+1); |
| 0 | 174 if ( SDL_cdlist[i] == NULL ) { |
| 175 SDL_OutOfMemory(); | |
| 176 return; | |
| 177 } | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
178 SDL_strcpy(SDL_cdlist[i], drive); |
| 0 | 179 SDL_cdmode[i] = stbuf->st_rdev; |
| 180 ++SDL_numcds; | |
| 181 #ifdef DEBUG_CDROM | |
| 182 fprintf(stderr, "Added CD-ROM drive: %s\n", drive); | |
| 183 #endif | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 #ifdef USE_MNTENT | |
| 188 static void CheckMounts(const char *mtab) | |
| 189 { | |
| 190 FILE *mntfp; | |
| 191 struct mntent *mntent; | |
| 192 struct stat stbuf; | |
| 193 | |
| 194 mntfp = setmntent(mtab, "r"); | |
| 195 if ( mntfp != NULL ) { | |
|
139
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
196 char *tmp; |
|
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
197 char *mnt_type; |
|
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
198 char *mnt_dev; |
| 0 | 199 |
| 200 while ( (mntent=getmntent(mntfp)) != NULL ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
201 mnt_type = SDL_malloc(SDL_strlen(mntent->mnt_type) + 1); |
|
139
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
202 if (mnt_type == NULL) |
|
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
203 continue; /* maybe you'll get lucky next time. */ |
|
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
204 |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
205 mnt_dev = SDL_malloc(SDL_strlen(mntent->mnt_fsname) + 1); |
|
139
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
206 if (mnt_dev == NULL) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
207 SDL_free(mnt_type); |
|
139
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
208 continue; |
|
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
209 } |
|
ef23a1bf1244
Fixed potential buffer overflow in Linux CD code (thanks Ryan!)
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
210 |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
211 SDL_strcpy(mnt_type, mntent->mnt_type); |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
212 SDL_strcpy(mnt_dev, mntent->mnt_fsname); |
| 0 | 213 |
| 214 /* Handle "supermount" filesystem mounts */ | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
215 if ( SDL_strcmp(mnt_type, MNTTYPE_SUPER) == 0 ) { |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
216 tmp = SDL_strstr(mntent->mnt_opts, "fs="); |
| 0 | 217 if ( tmp ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
218 SDL_free(mnt_type); |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
219 mnt_type = strdup(tmp + SDL_strlen("fs=")); |
|
247
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
220 if ( mnt_type ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
221 tmp = SDL_strchr(mnt_type, ','); |
|
247
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
222 if ( tmp ) { |
|
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
223 *tmp = '\0'; |
|
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
224 } |
| 0 | 225 } |
| 226 } | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
227 tmp = SDL_strstr(mntent->mnt_opts, "dev="); |
| 0 | 228 if ( tmp ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
229 SDL_free(mnt_dev); |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
230 mnt_dev = strdup(tmp + SDL_strlen("dev=")); |
|
247
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
231 if ( mnt_dev ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
232 tmp = SDL_strchr(mnt_dev, ','); |
|
247
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
233 if ( tmp ) { |
|
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
234 *tmp = '\0'; |
|
b0f09f86378d
Fix crash with Linux supermount fstab entries (thanks Erno!)
Sam Lantinga <slouken@libsdl.org>
parents:
139
diff
changeset
|
235 } |
| 0 | 236 } |
| 237 } | |
| 238 } | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
239 if ( SDL_strcmp(mnt_type, MNTTYPE_CDROM) == 0 ) { |
| 0 | 240 #ifdef DEBUG_CDROM |
| 241 fprintf(stderr, "Checking mount path from %s: %s mounted on %s of %s\n", | |
| 242 mtab, mnt_dev, mntent->mnt_dir, mnt_type); | |
| 243 #endif | |
| 244 if (CheckDrive(mnt_dev, mnt_type, &stbuf) > 0) { | |
| 245 AddDrive(mnt_dev, &stbuf); | |
| 246 } | |
| 247 } | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
248 SDL_free(mnt_dev); |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
249 SDL_free(mnt_type); |
| 0 | 250 } |
| 251 endmntent(mntfp); | |
| 252 } | |
| 253 } | |
| 254 #endif /* USE_MNTENT */ | |
| 255 | |
| 256 int SDL_SYS_CDInit(void) | |
| 257 { | |
| 258 /* checklist: /dev/cdrom, /dev/hd?, /dev/scd? /dev/sr? */ | |
| 259 static char *checklist[] = { | |
| 260 "cdrom", "?a hd?", "?0 scd?", "?0 sr?", NULL | |
| 261 }; | |
| 262 char *SDLcdrom; | |
| 263 int i, j, exists; | |
| 264 char drive[32]; | |
| 265 struct stat stbuf; | |
| 266 | |
| 267 /* Fill in our driver capabilities */ | |
| 268 SDL_CDcaps.Name = SDL_SYS_CDName; | |
| 269 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
| 270 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
| 271 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
| 272 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
| 273 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
| 274 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
| 275 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
| 276 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
| 277 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
| 278 | |
| 279 /* Look in the environment for our CD-ROM drive list */ | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
280 SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */ |
| 0 | 281 if ( SDLcdrom != NULL ) { |
| 282 char *cdpath, *delim; | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
283 cdpath = SDL_malloc(SDL_strlen(SDLcdrom)+1); |
| 0 | 284 if ( cdpath != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
285 SDL_strcpy(cdpath, SDLcdrom); |
| 0 | 286 SDLcdrom = cdpath; |
| 287 do { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
288 delim = SDL_strchr(SDLcdrom, ':'); |
| 0 | 289 if ( delim ) { |
| 290 *delim++ = '\0'; | |
| 291 } | |
| 292 #ifdef DEBUG_CDROM | |
| 293 fprintf(stderr, "Checking CD-ROM drive from SDL_CDROM: %s\n", SDLcdrom); | |
| 294 #endif | |
| 295 if ( CheckDrive(SDLcdrom, NULL, &stbuf) > 0 ) { | |
| 296 AddDrive(SDLcdrom, &stbuf); | |
| 297 } | |
| 298 if ( delim ) { | |
| 299 SDLcdrom = delim; | |
| 300 } else { | |
| 301 SDLcdrom = NULL; | |
| 302 } | |
| 303 } while ( SDLcdrom ); | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
304 SDL_free(cdpath); |
| 0 | 305 } |
| 306 | |
| 307 /* If we found our drives, there's nothing left to do */ | |
| 308 if ( SDL_numcds > 0 ) { | |
| 309 return(0); | |
| 310 } | |
| 311 } | |
| 312 | |
| 313 #ifdef USE_MNTENT | |
| 314 /* Check /dev/cdrom first :-) */ | |
| 315 if (CheckDrive("/dev/cdrom", NULL, &stbuf) > 0) { | |
| 316 AddDrive("/dev/cdrom", &stbuf); | |
| 317 } | |
| 318 | |
| 319 /* Now check the currently mounted CD drives */ | |
| 320 CheckMounts(_PATH_MOUNTED); | |
| 321 | |
| 322 /* Finally check possible mountable drives in /etc/fstab */ | |
| 323 CheckMounts(_PATH_MNTTAB); | |
| 324 | |
| 325 /* If we found our drives, there's nothing left to do */ | |
| 326 if ( SDL_numcds > 0 ) { | |
| 327 return(0); | |
| 328 } | |
| 329 #endif /* USE_MNTENT */ | |
| 330 | |
| 331 /* Scan the system for CD-ROM drives. | |
| 332 Not always 100% reliable, so use the USE_MNTENT code above first. | |
| 333 */ | |
| 334 for ( i=0; checklist[i]; ++i ) { | |
| 335 if ( checklist[i][0] == '?' ) { | |
| 336 char *insert; | |
| 337 exists = 1; | |
| 338 for ( j=checklist[i][1]; exists; ++j ) { | |
| 339 sprintf(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
|
340 insert = SDL_strchr(drive, '?'); |
| 0 | 341 if ( insert != NULL ) { |
| 342 *insert = j; | |
| 343 } | |
| 344 #ifdef DEBUG_CDROM | |
| 345 fprintf(stderr, "Checking possible CD-ROM drive: %s\n", drive); | |
| 346 #endif | |
| 347 switch (CheckDrive(drive, NULL, &stbuf)) { | |
| 348 /* Drive exists and is a CD-ROM */ | |
| 349 case 1: | |
| 350 AddDrive(drive, &stbuf); | |
| 351 break; | |
| 352 /* Drive exists, but isn't a CD-ROM */ | |
| 353 case 0: | |
| 354 break; | |
| 355 /* Drive doesn't exist */ | |
| 356 case -1: | |
| 357 exists = 0; | |
| 358 break; | |
| 359 } | |
| 360 } | |
| 361 } else { | |
| 362 sprintf(drive, "/dev/%s", checklist[i]); | |
| 363 #ifdef DEBUG_CDROM | |
| 364 fprintf(stderr, "Checking possible CD-ROM drive: %s\n", drive); | |
| 365 #endif | |
| 366 if ( CheckDrive(drive, NULL, &stbuf) > 0 ) { | |
| 367 AddDrive(drive, &stbuf); | |
| 368 } | |
| 369 } | |
| 370 } | |
| 371 return(0); | |
| 372 } | |
| 373 | |
| 374 /* General ioctl() CD-ROM command function */ | |
| 375 static int SDL_SYS_CDioctl(int id, int command, void *arg) | |
| 376 { | |
| 377 int retval; | |
| 378 | |
| 379 retval = ioctl(id, command, arg); | |
| 380 if ( retval < 0 ) { | |
| 381 SDL_SetError("ioctl() error: %s", strerror(errno)); | |
| 382 } | |
| 383 return(retval); | |
| 384 } | |
| 385 | |
| 386 static const char *SDL_SYS_CDName(int drive) | |
| 387 { | |
| 388 return(SDL_cdlist[drive]); | |
| 389 } | |
| 390 | |
| 391 static int SDL_SYS_CDOpen(int drive) | |
| 392 { | |
|
1051
091350827e08
SDL_CDOpen() fails on Linux if data track on disc is mounted in the
Ryan C. Gordon <icculus@icculus.org>
parents:
998
diff
changeset
|
393 return(open(SDL_cdlist[drive], (O_RDONLY|O_NONBLOCK), 0)); |
| 0 | 394 } |
| 395 | |
| 396 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 397 { | |
| 398 struct cdrom_tochdr toc; | |
| 399 int i, okay; | |
| 400 struct cdrom_tocentry entry; | |
| 401 | |
| 402 okay = 0; | |
| 403 if ( SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCHDR, &toc) == 0 ) { | |
| 404 cdrom->numtracks = toc.cdth_trk1-toc.cdth_trk0+1; | |
| 405 if ( cdrom->numtracks > SDL_MAX_TRACKS ) { | |
| 406 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 407 } | |
| 408 /* Read all the track TOC entries */ | |
| 409 for ( i=0; i<=cdrom->numtracks; ++i ) { | |
| 410 if ( i == cdrom->numtracks ) { | |
| 411 cdrom->track[i].id = CDROM_LEADOUT; | |
| 412 } else { | |
| 413 cdrom->track[i].id = toc.cdth_trk0+i; | |
| 414 } | |
| 415 entry.cdte_track = cdrom->track[i].id; | |
| 416 entry.cdte_format = CDROM_MSF; | |
| 417 if ( SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCENTRY, | |
| 418 &entry) < 0 ) { | |
| 419 break; | |
| 420 } else { | |
| 421 if ( entry.cdte_ctrl & CDROM_DATA_TRACK ) { | |
| 422 cdrom->track[i].type = SDL_DATA_TRACK; | |
| 423 } else { | |
| 424 cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 425 } | |
| 426 cdrom->track[i].offset = MSF_TO_FRAMES( | |
| 427 entry.cdte_addr.msf.minute, | |
| 428 entry.cdte_addr.msf.second, | |
| 429 entry.cdte_addr.msf.frame); | |
| 430 cdrom->track[i].length = 0; | |
| 431 if ( i > 0 ) { | |
| 432 cdrom->track[i-1].length = | |
| 433 cdrom->track[i].offset- | |
| 434 cdrom->track[i-1].offset; | |
| 435 } | |
| 436 } | |
| 437 } | |
| 438 if ( i == (cdrom->numtracks+1) ) { | |
| 439 okay = 1; | |
| 440 } | |
| 441 } | |
| 442 return(okay ? 0 : -1); | |
| 443 } | |
| 444 | |
| 445 /* Get CD-ROM status */ | |
| 446 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 447 { | |
| 448 CDstatus status; | |
| 449 struct cdrom_tochdr toc; | |
| 450 struct cdrom_subchnl info; | |
| 451 | |
| 452 info.cdsc_format = CDROM_MSF; | |
| 453 if ( ioctl(cdrom->id, CDROMSUBCHNL, &info) < 0 ) { | |
| 454 if ( ERRNO_TRAYEMPTY(errno) ) { | |
| 455 status = CD_TRAYEMPTY; | |
| 456 } else { | |
| 457 status = CD_ERROR; | |
| 458 } | |
| 459 } else { | |
| 460 switch (info.cdsc_audiostatus) { | |
| 461 case CDROM_AUDIO_INVALID: | |
| 462 case CDROM_AUDIO_NO_STATUS: | |
| 463 /* Try to determine if there's a CD available */ | |
| 464 if (ioctl(cdrom->id, CDROMREADTOCHDR, &toc)==0) | |
| 465 status = CD_STOPPED; | |
| 466 else | |
| 467 status = CD_TRAYEMPTY; | |
| 468 break; | |
| 469 case CDROM_AUDIO_COMPLETED: | |
| 470 status = CD_STOPPED; | |
| 471 break; | |
| 472 case CDROM_AUDIO_PLAY: | |
| 473 status = CD_PLAYING; | |
| 474 break; | |
| 475 case CDROM_AUDIO_PAUSED: | |
| 476 /* Workaround buggy CD-ROM drive */ | |
| 477 if ( info.cdsc_trk == CDROM_LEADOUT ) { | |
| 478 status = CD_STOPPED; | |
| 479 } else { | |
| 480 status = CD_PAUSED; | |
| 481 } | |
| 482 break; | |
| 483 default: | |
| 484 status = CD_ERROR; | |
| 485 break; | |
| 486 } | |
| 487 } | |
| 488 if ( position ) { | |
| 489 if ( status == CD_PLAYING || (status == CD_PAUSED) ) { | |
| 490 *position = MSF_TO_FRAMES( | |
| 491 info.cdsc_absaddr.msf.minute, | |
| 492 info.cdsc_absaddr.msf.second, | |
| 493 info.cdsc_absaddr.msf.frame); | |
| 494 } else { | |
| 495 *position = 0; | |
| 496 } | |
| 497 } | |
| 498 return(status); | |
| 499 } | |
| 500 | |
| 501 /* Start play */ | |
| 502 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 503 { | |
| 504 struct cdrom_msf playtime; | |
| 505 | |
| 506 FRAMES_TO_MSF(start, | |
| 507 &playtime.cdmsf_min0, &playtime.cdmsf_sec0, &playtime.cdmsf_frame0); | |
| 508 FRAMES_TO_MSF(start+length, | |
| 509 &playtime.cdmsf_min1, &playtime.cdmsf_sec1, &playtime.cdmsf_frame1); | |
| 510 #ifdef DEBUG_CDROM | |
| 511 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", | |
| 512 playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, | |
| 513 playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); | |
| 514 #endif | |
| 515 return(SDL_SYS_CDioctl(cdrom->id, CDROMPLAYMSF, &playtime)); | |
| 516 } | |
| 517 | |
| 518 /* Pause play */ | |
| 519 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 520 { | |
| 521 return(SDL_SYS_CDioctl(cdrom->id, CDROMPAUSE, 0)); | |
| 522 } | |
| 523 | |
| 524 /* Resume play */ | |
| 525 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 526 { | |
| 527 return(SDL_SYS_CDioctl(cdrom->id, CDROMRESUME, 0)); | |
| 528 } | |
| 529 | |
| 530 /* Stop play */ | |
| 531 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 532 { | |
| 533 return(SDL_SYS_CDioctl(cdrom->id, CDROMSTOP, 0)); | |
| 534 } | |
| 535 | |
| 536 /* Eject the CD-ROM */ | |
| 537 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 538 { | |
| 539 return(SDL_SYS_CDioctl(cdrom->id, CDROMEJECT, 0)); | |
| 540 } | |
| 541 | |
| 542 /* Close the CD-ROM handle */ | |
| 543 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 544 { | |
| 545 close(cdrom->id); | |
| 546 } | |
| 547 | |
| 548 void SDL_SYS_CDQuit(void) | |
| 549 { | |
| 550 int i; | |
| 551 | |
| 552 if ( SDL_numcds > 0 ) { | |
| 553 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
|
554 SDL_free(SDL_cdlist[i]); |
| 0 | 555 } |
| 556 SDL_numcds = 0; | |
| 557 } | |
| 558 } | |
| 559 |