File indexing completed on 2024-04-21 04:54:22

 /*
  * This file is part of WorkMan, the civilized CD player library
  * Copyright (C) 1991-1997 by Steven Grimm <koreth@midwinter.com>
  * Copyright (C) by Dirk Försterling <milliByte@DeathsDoor.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the Free
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  *
  * plat_aix - AIX 4.x IDE and SCSI support  16 Dec 1998
  *
  * AIX 4.x Port: Erik O'Shaughnessy
  * Original AIX IDE Code: Cloyce Spradling (xmcd libdi_d/aixioc.c )
  *
  * Taken from the ascd distribution.
  *
  */
 
 #if defined(AIXV3) || defined(__AIXV3)
 
 #include <stdio.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/cdrom.h>
 #include <sys/devinfo.h>
 #include <sys/scsi.h>
 #include <sys/scdisk.h>
 
 #include "include/wm_config.h"
 #include "include/wm_struct.h"
 #include "include/wm_cdtext.h"
 
 #define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
 
 #define LEADOUT 0xaa
 
 int min_volume = 128;
 int max_volume = 255;
 
 
 
 /* NAME: gen_init
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_init(struct wm_drive *d)
 {
   return 0;
 } /* gen_init() */
 
 
 /* NAME: gen_open
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_open(struct wm_drive *d)
 {
   int fd;
 
   if( ! d )
     {
       errno = EFAULT;
       return -1;
     }
 
   if(d->fd > -1)            /* device already open? */
     {
       wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "gen_open(): [device is open (fd=%d)]\n", d->fd);
       return 0;
     }
 
   if( (fd = openx(d->cd_device,O_RDONLY,NULL,SC_SINGLE)) < 0 )
     {
       perror("openx");
       return -6;
       /* return 1 */
     }
 
   d->fd = fd;
 
   return 0;
 }
 
 /* NAME: gen_scsi
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_scsi(struct wm_drive *d,
     uchar_t *cdb, int cdblen,
     void *retbuf, int retbuflen,
     int getreply)
 {
   return -1;
 } /* gen_scsi() */
 
 int
 gen_close( struct wm_drive *d )
 {
   if(d->fd != -1) {
     wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closing the device\n");
     close(d->fd);
     d->fd = -1;
   }
   return 0;
 }
 
 /* NAME: gen_get_drive_status
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_get_drive_status(struct wm_drive *d,
     int oldmode,
     int *mode,
     int *pos,
     int *track,
     int *index)
 {
   struct cd_audio_cmd cmd;
 
   *mode = WM_CDM_EJECTED;
 
   if(d->fd < 0)
     switch(d->proto.open(d))
       {
       case -1:
     return -1;
       case 1:
     return 0;
       }
 
   cmd.audio_cmds = CD_INFO_AUDIO;
 
   if( ioctl(d->fd,DKAUDIO,&cmd) < 0)
     return -1;
 
   switch(cmd.status)
     {
     case CD_PLAY_AUDIO:
       *mode = WM_CDM_PLAYING;
       *track = cmd.indexing.info_audio.current_track;
       *index = cmd.indexing.info_audio.current_index;
       *pos = cmd.indexing.info_audio.current_mins * 60 * 75 +
     cmd.indexing.info_audio.current_secs * 75 +
     cmd.indexing.info_audio.current_frames;
       break;
 
     case CD_PAUSE_AUDIO:
       *mode = WM_CDM_PAUSED;
       *track = cmd.indexing.info_audio.current_track;
       *index = cmd.indexing.info_audio.current_index;
       *pos = cmd.indexing.info_audio.current_mins * 60 * 75 +
     cmd.indexing.info_audio.current_secs * 75 +
     cmd.indexing.info_audio.current_frames;
 
       break;
     case CD_NO_AUDIO:       /* no play audio in progress */
     case CD_COMPLETED:      /* play operation completed successfully */
     case CD_STATUS_ERROR:   /* invalid status or play stopped due to err */
     case CD_NOT_VALID:      /* audio status is invalid or not supported */
       *mode = WM_CDM_STOPPED;
       break;
     default:
       *mode = WM_CDM_UNKNOWN;
       break;
     }
 
   return 0;
 } /* gen_get_drive_status() */
 
 
 
 /* NAME: gen_get_trackcount
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_get_trackcount(struct wm_drive *d,int *tracks)
 {
   struct cd_audio_cmd cmd;
 
   cmd.audio_cmds = CD_TRK_INFO_AUDIO;
   cmd.msf_flag = 0;
 
   if( ioctl(d->fd,DKAUDIO,&cmd) < 0)
     {
       perror("DKAUDIO");
       return -1;
     }
 
   *tracks = cmd.indexing.track_index.last_track;
 
   return 0;
 } /* gen_get_trackcount() */
 
 /* NAME: gen_get_trackinfo
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_get_trackinfo(struct wm_drive *d,int track,int *data,int *startframe)
 {
   struct cd_audio_cmd cmd;
 
   cmd.audio_cmds = CD_GET_TRK_MSF;
   cmd.msf_flag = 1;
 
   cmd.indexing.track_msf.track = track;
 
   if( ioctl(d->fd,DKAUDIO,&cmd) < 0)
     return -1;
 
   *startframe = cmd.indexing.track_msf.mins * 60 * 75 +
     cmd.indexing.track_msf.secs * 75 +
     cmd.indexing.track_msf.frames;
 
   *data = 0;
 
   return 0;
 } /* gen_get_trackinfo() */
 
 /* NAME: gen_get_cdlen
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_get_cdlen(struct wm_drive *d,int *frames)
 {
   int tmp;
 
   return gen_get_trackinfo(d,LEADOUT,&tmp,frames);
 } /* gen_get_cdlen() */
 
 
 /* NAME: gen_play
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_play(struct wm_drive *d,int start,int end)
 {
   struct cd_audio_cmd cmd;
 
   cmd.audio_cmds = CD_PLAY_AUDIO;
   cmd.msf_flag = 1;
 
   cmd.indexing.msf.first_mins = start / (60*75);
   cmd.indexing.msf.first_secs = (start % (60*75)) / 75;
   cmd.indexing.msf.first_frames = start % 75;
 
   cmd.indexing.msf.last_mins = end / (60*75);
   cmd.indexing.msf.last_secs = (end % (60*75)) / 75;
   cmd.indexing.msf.last_frames = end % 75;
 
   if( ioctl(d->fd,DKAUDIO,&cmd) < 0)
     {
       perror("DKAUDIO:CD_PLAY_AUDIO");
       return -1;
     }
   return 0;
 } /* gen_play() */
 
 /* NAME: gen_pause
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_pause(struct wm_drive *d)
 {
   struct cd_audio_cmd cmd;
 
   cmd.audio_cmds = CD_PAUSE_AUDIO;
 
   return ioctl(d->fd,DKAUDIO,&cmd);
 } /* gen_pause() */
 
 
 /* NAME: gen_resume
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_resume(struct wm_drive *d)
 {
   struct cd_audio_cmd cmd;
 
   cmd.audio_cmds = CD_RESUME_AUDIO;
   return ioctl(d->fd,DKAUDIO,&cmd);
 } /* gen_resume() */
 
 /* NAME: gen_stop
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_stop(struct wm_drive *d)
 {
   struct cd_audio_cmd cmd;
 
   cmd.audio_cmds = CD_STOP_AUDIO;
   return ioctl(d->fd,DKAUDIO,&cmd);
 } /* gen_stop() */
 
 /* NAME: gen_eject
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_eject(struct wm_drive *d)
 {
   return ioctl(d->fd,DKEJECT,NULL);
 }
 
 /*----------------------------------------*
  * Close the CD tray
  *----------------------------------------*/
 int
 gen_closetray(struct wm_drive *d)
 {
   return -1;
 } /* gen_closetray() */
 
 
 int
 scale_volume(int vol,int max)
 {
   return ((vol * (max_volume - min_volume)) / max + min_volume);
 }
 
 int
 unscale_volume(int vol,int max)
 {
   int n;
   n = ( vol - min_volume ) * max_volume / (max - min_volume);
   return (n <0)?0:n;
 }
 
 /* NAME: gen_set_volume
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_set_volume(struct wm_drive *d,int left,int right)
 {
   struct cd_audio_cmd cmd;
 
   cmd.audio_cmds = CD_SET_VOLUME;
   cmd.volume_type = CD_VOLUME_CHNLS;
 
   cmd.out_port_0_vol = scale_volume(left,100);
   cmd.out_port_1_vol = scale_volume(right,100);
 
   if( ioctl(d->fd,DKAUDIO,&cmd) < 0)
     {
       perror("CD_SET_VOLUME");
       return -1;
     }
 
   return 0;
 } /* gen_set_volume() */
 
 /* NAME: gen_get_volume
  *
  * FUNCTION:
  *
  * RETURNS:
  */
 int
 gen_get_volume(struct wm_drive *d,int *left,int *right)
 {
   struct cd_audio_cmd cmd;
   int l,r;
 
   fprintf(stderr,"gen_get_volume\n");
 
   cmd.audio_cmds = CD_INFO_AUDIO;
   if( ioctl(d->fd,DKAUDIO,&cmd) < 0)
     return -1;
 
   *left = unscale_volume(cmd.out_port_0_vol,100);
   *right = unscale_volume(cmd.out_port_1_vol,100);
 
   return 0;
 } /* gen_get_volume() */
 
 #endif /* _AIX */