diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/cdrom/aix/SDL_syscdrom.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/cdrom/aix/SDL_syscdrom.c | 660 |
1 files changed, 0 insertions, 660 deletions
diff --git a/distrib/sdl-1.2.12/src/cdrom/aix/SDL_syscdrom.c b/distrib/sdl-1.2.12/src/cdrom/aix/SDL_syscdrom.c deleted file mode 100644 index 41f23a9..0000000 --- a/distrib/sdl-1.2.12/src/cdrom/aix/SDL_syscdrom.c +++ /dev/null @@ -1,660 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Carsten Griwodz - griff@kom.tu-darmstadt.de - - based on linux/SDL_syscdrom.c by Sam Lantinga -*/ -#include "SDL_config.h" - -#ifdef SDL_CDROM_AIX - -/* Functions for system-level CD-ROM audio control */ - -/*#define DEBUG_CDROM 1*/ - -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <errno.h> -#include <unistd.h> - -#include <sys/ioctl.h> -#include <sys/devinfo.h> -#include <sys/mntctl.h> -#include <sys/statfs.h> -#include <sys/vmount.h> -#include <fstab.h> -#include <sys/scdisk.h> - -#include "SDL_cdrom.h" -#include "../SDL_syscdrom.h" - -/* The maximum number of CD-ROM drives we'll detect */ -#define MAX_DRIVES 16 - -/* A list of available CD-ROM drives */ -static char *SDL_cdlist[MAX_DRIVES]; -static dev_t SDL_cdmode[MAX_DRIVES]; - -/* The system-dependent CD control functions */ -static const char *SDL_SYS_CDName(int drive); -static int SDL_SYS_CDOpen(int drive); -static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); -static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); -static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); -static int SDL_SYS_CDPause(SDL_CD *cdrom); -static int SDL_SYS_CDResume(SDL_CD *cdrom); -static int SDL_SYS_CDStop(SDL_CD *cdrom); -static int SDL_SYS_CDEject(SDL_CD *cdrom); -static void SDL_SYS_CDClose(SDL_CD *cdrom); -static int SDL_SYS_CDioctl(int id, int command, void *arg); - -/* Check a drive to see if it is a CD-ROM */ -static int CheckDrive(char *drive, struct stat *stbuf) -{ - int is_cd; - int cdfd; - int ret; - struct devinfo info; - - /* If it doesn't exist, return -1 */ - if ( stat(drive, stbuf) < 0 ) { - return -1; - } - - /* If it does exist, verify that it's an available CD-ROM */ - is_cd = 0; - if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { - cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0); - if ( cdfd >= 0 ) { - ret = SDL_SYS_CDioctl( cdfd, IOCINFO, &info ); - if ( ret < 0 ) { - /* Some kind of error */ - is_cd = 0; - } else { - if ( info.devtype == DD_CDROM ) { - is_cd = 1; - } else { - is_cd = 0; - } - } - close(cdfd); - } -#ifdef DEBUG_CDROM - else - { - fprintf(stderr, "Could not open drive %s (%s)\n", drive, strerror(errno)); - } -#endif - } - return is_cd; -} - -/* Add a CD-ROM drive to our list of valid drives */ -static void AddDrive(char *drive, struct stat *stbuf) -{ - int i; - - if ( SDL_numcds < MAX_DRIVES ) { - /* Check to make sure it's not already in our list. - This can happen when we see a drive via symbolic link. - */ - for ( i=0; i<SDL_numcds; ++i ) { - if ( stbuf->st_rdev == SDL_cdmode[i] ) { -#ifdef DEBUG_CDROM - fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); -#endif - return; - } - } - - /* Add this drive to our list */ - i = SDL_numcds; - SDL_cdlist[i] = SDL_strdup(drive); - if ( SDL_cdlist[i] == NULL ) { - SDL_OutOfMemory(); - return; - } - SDL_cdmode[i] = stbuf->st_rdev; - ++SDL_numcds; -#ifdef DEBUG_CDROM - fprintf(stderr, "Added CD-ROM drive: %s\n", drive); -#endif - } -} - -static void CheckMounts() -{ - char* buffer; - int bufsz; - struct vmount* ptr; - int ret; - - buffer = (char*)SDL_malloc(10); - bufsz = 10; - if ( buffer==NULL ) - { - fprintf(stderr, "Could not allocate 10 bytes in aix/SDL_syscdrom.c:CheckMounts\n" ); - exit ( -10 ); - } - - do - { - /* mntctrl() returns an array of all mounted filesystems */ - ret = mntctl ( MCTL_QUERY, bufsz, buffer ); - if ( ret == 0 ) - { - /* Buffer was too small, realloc. */ - bufsz = *(int*)buffer; /* Required size is in first word. */ - /* (whatever a word is in AIX 4.3.3) */ - /* int seems to be OK in 32bit mode. */ - SDL_free(buffer); - buffer = (char*)SDL_malloc(bufsz); - if ( buffer==NULL ) - { - fprintf(stderr, - "Could not allocate %d bytes in aix/SDL_syscdrom.c:CheckMounts\n", - bufsz ); - exit ( -10 ); - } - } - else if ( ret < 0 ) - { -#ifdef DEBUG_CDROM - fprintf(stderr, "Error reading vmount structures\n"); -#endif - return; - } - } - while ( ret == 0 ); - -#ifdef DEBUG_CDROM - fprintf ( stderr, "Read %d vmount structures\n",ret ); -#endif - ptr = (struct vmount*)buffer; - do - { - switch(ptr->vmt_gfstype) - { - case MNT_CDROM : - { - struct stat stbuf; - char* text; - - text = (char*)ptr + ptr->vmt_data[VMT_OBJECT].vmt_off; -#ifdef DEBUG_CDROM - fprintf(stderr, "Checking mount path: %s mounted on %s\n", - text, (char*)ptr + ptr->vmt_data[VMT_STUB].vmt_off ); -#endif - if ( CheckDrive( text, &stbuf) > 0) - { - AddDrive( text, &stbuf); - } - } - break; - default : - break; - } - ptr = (struct vmount*)((char*)ptr + ptr->vmt_length); - ret--; - } - while ( ret > 0 ); - - free ( buffer ); -} - -static int CheckNonmounts() -{ -#ifdef _THREAD_SAFE - AFILE_t fsFile = NULL; - int passNo = 0; - int ret; - struct fstab entry; - struct stat stbuf; - - ret = setfsent_r( &fsFile, &passNo ); - if ( ret != 0 ) return -1; - do - { - ret = getfsent_r ( &entry, &fsFile, &passNo ); - if ( ret == 0 ) { - char* l = SDL_strrchr(entry.fs_spec,'/'); - if ( l != NULL ) { - if ( !SDL_strncmp("cd",++l,2) ) { -#ifdef DEBUG_CDROM - fprintf(stderr, - "Found unmounted CD ROM drive with device name %s\n", - entry.fs_spec); -#endif - if ( CheckDrive( entry.fs_spec, &stbuf) > 0) - { - AddDrive( entry.fs_spec, &stbuf); - } - } - } - } - } - while ( ret == 0 ); - ret = endfsent_r ( &fsFile ); - if ( ret != 0 ) return -1; - return 0; -#else - struct fstab* entry; - struct stat stbuf; - - setfsent(); - do - { - entry = getfsent(); - if ( entry != NULL ) { - char* l = SDL_strrchr(entry->fs_spec,'/'); - if ( l != NULL ) { - if ( !SDL_strncmp("cd",++l,2) ) { -#ifdef DEBUG_CDROM - fprintf(stderr,"Found unmounted CD ROM drive with device name %s", entry->fs_spec); -#endif - if ( CheckDrive( entry->fs_spec, &stbuf) > 0) - { - AddDrive( entry->fs_spec, &stbuf); - } - } - } - } - } - while ( entry != NULL ); - endfsent(); -#endif -} - -int SDL_SYS_CDInit(void) -{ - char *SDLcdrom; - struct stat stbuf; - - /* Fill in our driver capabilities */ - SDL_CDcaps.Name = SDL_SYS_CDName; - SDL_CDcaps.Open = SDL_SYS_CDOpen; - SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; - SDL_CDcaps.Status = SDL_SYS_CDStatus; - SDL_CDcaps.Play = SDL_SYS_CDPlay; - SDL_CDcaps.Pause = SDL_SYS_CDPause; - SDL_CDcaps.Resume = SDL_SYS_CDResume; - SDL_CDcaps.Stop = SDL_SYS_CDStop; - SDL_CDcaps.Eject = SDL_SYS_CDEject; - SDL_CDcaps.Close = SDL_SYS_CDClose; - - /* Look in the environment for our CD-ROM drive list */ - SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */ - if ( SDLcdrom != NULL ) { - char *cdpath, *delim; - size_t len = SDL_strlen(SDLcdrom)+1; - cdpath = SDL_stack_alloc(char, len); - if ( cdpath != NULL ) { - SDL_strlcpy(cdpath, SDLcdrom, len); - SDLcdrom = cdpath; - do { - delim = SDL_strchr(SDLcdrom, ':'); - if ( delim ) { - *delim++ = '\0'; - } -#ifdef DEBUG_CDROM - fprintf(stderr, "Checking CD-ROM drive from SDL_CDROM: %s\n", SDLcdrom); -#endif - if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) { - AddDrive(SDLcdrom, &stbuf); - } - if ( delim ) { - SDLcdrom = delim; - } else { - SDLcdrom = NULL; - } - } while ( SDLcdrom ); - SDL_stack_free(cdpath); - } - - /* If we found our drives, there's nothing left to do */ - if ( SDL_numcds > 0 ) { - return(0); - } - } - - CheckMounts(); - CheckNonmounts(); - - return 0; -} - -/* General ioctl() CD-ROM command function */ -static int SDL_SYS_CDioctl(int id, int command, void *arg) -{ - int retval; - - retval = ioctl(id, command, arg); - if ( retval < 0 ) { - SDL_SetError("ioctl() error: %s", strerror(errno)); - } - return retval; -} - -static const char *SDL_SYS_CDName(int drive) -{ - return(SDL_cdlist[drive]); -} - -static int SDL_SYS_CDOpen(int drive) -{ - int fd; - char* lastsl; - char* cdromname; - size_t len; - - /* - * We found /dev/cd? drives and that is in our list. But we can - * open only the /dev/rcd? versions of those devices for Audio CD. - */ - len = SDL_strlen(SDL_cdlist[drive])+2; - cdromname = (char*)SDL_malloc(len); - SDL_strlcpy(cdromname,SDL_cdlist[drive],len); - lastsl = SDL_strrchr(cdromname,'/'); - if (lastsl) { - *lastsl = 0; - SDL_strlcat(cdromname,"/r",len); - lastsl = SDL_strrchr(SDL_cdlist[drive],'/'); - if (lastsl) { - lastsl++; - SDL_strlcat(cdromname,lastsl,len); - } - } - -#ifdef DEBUG_CDROM - fprintf(stderr, "Should open drive %s, opening %s\n", SDL_cdlist[drive], cdromname); -#endif - - /* - * Use exclusive access. Don't use SC_DIAGNOSTICS as xmcd does because they - * require root priviledges, and we don't want that. SC_SINGLE provides - * exclusive access with less trouble. - */ - fd = openx(cdromname, O_RDONLY, NULL, SC_SINGLE); - if ( fd < 0 ) - { -#ifdef DEBUG_CDROM - fprintf(stderr, "Could not open drive %s (%s)\n", cdromname, strerror(errno)); -#endif - } - else - { - struct mode_form_op cdMode; - int ret; -#ifdef DEBUG_CDROM - cdMode.action = CD_GET_MODE; - ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode); - if ( ret < 0 ) { - fprintf(stderr, - "Could not get drive mode for %s (%s)\n", - cdromname, strerror(errno)); - } else { - switch(cdMode.cd_mode_form) { - case CD_MODE1 : - fprintf(stderr, - "Drive mode for %s is %s\n", - cdromname, "CD-ROM Data Mode 1"); - break; - case CD_MODE2_FORM1 : - fprintf(stderr, - "Drive mode for %s is %s\n", - cdromname, "CD-ROM XA Data Mode 2 Form 1"); - break; - case CD_MODE2_FORM2 : - fprintf(stderr, - "Drive mode for %s is %s\n", - cdromname, "CD-ROM XA Data Mode 2 Form 2"); - break; - case CD_DA : - fprintf(stderr, - "Drive mode for %s is %s\n", - cdromname, "CD-DA"); - break; - default : - fprintf(stderr, - "Drive mode for %s is %s\n", - cdromname, "unknown"); - break; - } - } -#endif - - cdMode.action = CD_CHG_MODE; - cdMode.cd_mode_form = CD_DA; - ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode); - if ( ret < 0 ) { -#ifdef DEBUG_CDROM - fprintf(stderr, - "Could not set drive mode for %s (%s)\n", - cdromname, strerror(errno)); -#endif - SDL_SetError("ioctl() error: Could not set CD drive mode, %s", - strerror(errno)); - } else { -#ifdef DEBUG_CDROM - fprintf(stderr, - "Drive mode for %s set to CD_DA\n", - cdromname); -#endif - } - } - SDL_free(cdromname); - return fd; -} - -static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) -{ - struct cd_audio_cmd cmd; - struct cd_audio_cmd entry; - int i; - int okay; - - cmd.audio_cmds = CD_TRK_INFO_AUDIO; - cmd.msf_flag = FALSE; - if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) { - return -1; - } - - okay = 0; - cdrom->numtracks = cmd.indexing.track_index.last_track - - cmd.indexing.track_index.first_track+1; - if ( cdrom->numtracks > SDL_MAX_TRACKS ) { - cdrom->numtracks = SDL_MAX_TRACKS; - } - - /* Read all the track TOC entries */ - for ( i=0; i<=cdrom->numtracks; ++i ) { - if ( i == cdrom->numtracks ) { - cdrom->track[i].id = 0xAA;; - } else { - cdrom->track[i].id = cmd.indexing.track_index.first_track+i; - } - entry.audio_cmds = CD_GET_TRK_MSF; - entry.indexing.track_msf.track = cdrom->track[i].id; - if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &entry) < 0 ) { - break; - } else { - cdrom->track[i].type = 0; /* don't know how to detect 0x04 data track */ - cdrom->track[i].offset = MSF_TO_FRAMES( - entry.indexing.track_msf.mins, - entry.indexing.track_msf.secs, - entry.indexing.track_msf.frames); - cdrom->track[i].length = 0; - if ( i > 0 ) { - cdrom->track[i-1].length = cdrom->track[i].offset - - cdrom->track[i-1].offset; - } - } - } - if ( i == (cdrom->numtracks+1) ) { - okay = 1; - } - return(okay ? 0 : -1); -} - -/* Get CD-ROM status */ -static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) -{ - CDstatus status; - struct cd_audio_cmd cmd; - cmd.audio_cmds = CD_INFO_AUDIO; - - if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) { -#ifdef DEBUG_CDROM - fprintf(stderr, "ioctl failed in SDL_SYS_CDStatus (%s)\n", SDL_GetError()); -#endif - status = CD_ERROR; - } else { - switch (cmd.status) { - case CD_NO_AUDIO: - case CD_COMPLETED: - status = CD_STOPPED; - break; - case CD_PLAY_AUDIO: - status = CD_PLAYING; - break; - case CD_PAUSE_AUDIO: - status = CD_PAUSED; - break; - case CD_NOT_VALID: -#ifdef DEBUG_CDROM - fprintf(stderr, "cdStatus failed with CD_NOT_VALID\n"); -#endif - status = CD_ERROR; - break; - case CD_STATUS_ERROR: -#ifdef DEBUG_CDROM - fprintf(stderr, "cdStatus failed with CD_STATUS_ERROR\n"); -#endif - status = CD_ERROR; - break; - default: -#ifdef DEBUG_CDROM - fprintf(stderr, "cdStatus failed with unknown error\n"); -#endif - status = CD_ERROR; - break; - } - } - if ( position ) { - if ( status == CD_PLAYING || (status == CD_PAUSED) ) { - *position = MSF_TO_FRAMES( cmd.indexing.info_audio.current_mins, - cmd.indexing.info_audio.current_secs, - cmd.indexing.info_audio.current_frames); - } else { - *position = 0; - } - } - return status; -} - -/* Start play */ -static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) -{ - struct cd_audio_cmd cmd; - - /* - * My CD Rom is muted by default. I think I read that this is new with - * AIX 4.3. SDL does not change the volume, so I need a kludge. Maybe - * its better to do this elsewhere? - */ - cmd.audio_cmds = CD_PLAY_AUDIO | CD_SET_VOLUME; - cmd.msf_flag = TRUE; - FRAMES_TO_MSF(start, - &cmd.indexing.msf.first_mins, - &cmd.indexing.msf.first_secs, - &cmd.indexing.msf.first_frames); - FRAMES_TO_MSF(start+length, - &cmd.indexing.msf.last_mins, - &cmd.indexing.msf.last_secs, - &cmd.indexing.msf.last_frames); - cmd.volume_type = CD_VOLUME_ALL; - cmd.all_channel_vol = 255; /* This is a uchar. What is a good value? No docu! */ - cmd.out_port_0_sel = CD_AUDIO_CHNL_0; - cmd.out_port_1_sel = CD_AUDIO_CHNL_1; - cmd.out_port_2_sel = CD_AUDIO_CHNL_2; - cmd.out_port_3_sel = CD_AUDIO_CHNL_3; - -#ifdef DEBUG_CDROM - fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", - cmd.indexing.msf.first_mins, - cmd.indexing.msf.first_secs, - cmd.indexing.msf.first_frames, - cmd.indexing.msf.last_mins, - cmd.indexing.msf.last_secs, - cmd.indexing.msf.last_frames); -#endif - return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); -} - -/* Pause play */ -static int SDL_SYS_CDPause(SDL_CD *cdrom) -{ - struct cd_audio_cmd cmd; - cmd.audio_cmds = CD_PAUSE_AUDIO; - return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); -} - -/* Resume play */ -static int SDL_SYS_CDResume(SDL_CD *cdrom) -{ - struct cd_audio_cmd cmd; - cmd.audio_cmds = CD_RESUME_AUDIO; - return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); -} - -/* Stop play */ -static int SDL_SYS_CDStop(SDL_CD *cdrom) -{ - struct cd_audio_cmd cmd; - cmd.audio_cmds = CD_STOP_AUDIO; - return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); -} - -/* Eject the CD-ROM */ -static int SDL_SYS_CDEject(SDL_CD *cdrom) -{ - return(SDL_SYS_CDioctl(cdrom->id, DKEJECT, 0)); -} - -/* Close the CD-ROM handle */ -static void SDL_SYS_CDClose(SDL_CD *cdrom) -{ - close(cdrom->id); -} - -void SDL_SYS_CDQuit(void) -{ - int i; - - if ( SDL_numcds > 0 ) { - for ( i=0; i<SDL_numcds; ++i ) { - SDL_free(SDL_cdlist[i]); - } - SDL_numcds = 0; - } -} - -#endif /* SDL_CDROM_AIX */ |