d5d093bd10
Obtained from: https://web.archive.org/web/20090620082249/http://worldserver.oleane.com/rsn/ascd-en.html
475 lines
8.9 KiB
C
475 lines
8.9 KiB
C
/*
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* $Id: plat_news.c,v 1.7 1999/03/07 08:36:40 dirk Exp $
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*
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* This file is part of WorkMan, the civilized CD player library
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* (c) 1991-1997 by Steven Grimm (original author)
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* (c) by Dirk Försterling (current 'author' = maintainer)
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* The maintainer can be contacted by his e-mail address:
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* milliByte@DeathsDoor.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* Sony NEWS-specific drive control routines.
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*/
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#if defined( __sony_news) || defined(sony_news)
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static char plat_news_id[] = "$Id: plat_news.c,v 1.7 1999/03/07 08:36:40 dirk Exp $";
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#include <errno.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <ustat.h>
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#include <CD.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include "include/wm_config.h"
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#include "include/wm_struct.h"
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#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
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void *malloc();
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char *strchr();
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extern char *cd_device;
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extern int intermittent_dev;
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int min_volume = 128;
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int max_volume = 255;
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/*
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* Initialize the drive. A no-op for the generic driver.
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*/
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int
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gen_init(d)
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struct wm_drive *d;
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{
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return (0);
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}
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/*
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* Get the number of tracks on the CD.
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*/
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int
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gen_get_trackcount(d, tracks)
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struct wm_drive *d;
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int *tracks;
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{
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struct CD_Capacity cc;
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if (CD_GetCapacity(d->fd, &cc))
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return (-1);
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*tracks = cc.etrack - 1;
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return (0);
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}
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/*
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* Get the start time and mode (data or audio) of a track.
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*/
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int
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gen_get_trackinfo(d, track, data, startframe)
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struct wm_drive *d;
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int track, *data, *startframe;
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{
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struct CD_TOCinfo hdr;
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struct CD_TOCdata ent;
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hdr.strack = track;
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hdr.ntrack = 1;
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hdr.data = &ent;
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if (CD_ReadTOC(d->fd, &hdr))
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return (-1);
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*data = (ent.control & 4) ? 1 : 0;
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*startframe = ent.baddr;
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return (0);
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}
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/*
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* Get the number of frames on the CD.
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*/
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int
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gen_get_cdlen(d, frames)
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struct wm_drive *d;
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int *frames;
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{
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int tmp;
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if ((d->get_trackcount)(d, &tmp))
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return (-1);
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return (gen_get_trackinfo(d, tmp + 1, &tmp, frames));
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}
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/*
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* Get the current status of the drive: the current play mode, the absolute
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* position from start of disc (in frames), and the current track and index
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* numbers if the CD is playing or paused.
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*/
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int
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gen_get_drive_status(d, oldmode, mode, pos, track, index)
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struct wm_drive *d;
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enum wm_cd_modes oldmode, *mode;
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int *pos, *track, *index;
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{
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struct CD_Status sc;
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/* If we can't get status, the CD is ejected, so default to that. */
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*mode = WM_CDM_EJECTED;
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/* Is the device open? */
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if (d->fd < 0)
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{
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switch (wmcd_open(d)) {
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case -1: /* error */
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return (-1);
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case 1: /* retry */
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return (0);
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}
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}
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/* Disc is ejected. Close the device. */
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if (CD_GetStatus(d->fd, &sc))
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{
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WMclose(d->fd);
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d->fd = -1;
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return (0);
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}
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switch (sc.status) {
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case CDSTAT_PLAY:
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*mode = PLAYING;
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*track = sc.tno;
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*index = sc.index;
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*pos = sc.baddr;
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break;
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case CDSTAT_PAUSE:
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if (oldmode == WM_CDM_PLAYING || oldmode == WM_CDM_PAUSED)
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{
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*mode = WM_CDM_PAUSED;
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*track = sc.tno;
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*index = sc.index;
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*pos = sc.baddr;
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}
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else
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*mode = WM_CDM_STOPPED;
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break;
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case CDSTAT_STOP:
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if (oldmode == WM_CDM_PLAYING)
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{
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*mode = WM_CDM_TRACK_DONE; /* waiting for next track. */
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break;
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}
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/* fall through */
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default:
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*mode = WM_CDM_STOPPED;
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break;
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}
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return (0);
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}
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/*
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* Set the volume level for the left and right channels. Their values
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* range from 0 to 100.
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*/
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int
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gen_set_volume(d, left, right)
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struct wm_drive *d;
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int left, right;
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{
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/* NEWS can't adjust volume! */
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return (0);
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}
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/*
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* Pause the CD.
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*/
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int
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gen_pause(d)
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struct wm_drive *d;
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{
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CD_Pause(d->fd);
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return (0);
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}
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/*
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* Resume playing the CD (assuming it was paused.)
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*/
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int
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gen_resume(d)
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struct wm_drive *d;
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{
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CD_Restart(d->fd);
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return (0);
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}
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/*
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* Stop the CD.
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*/
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int
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gen_stop(d)
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struct wm_drive *d;
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{
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CD_Stop(d->fd);
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return (0);
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}
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/*
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* Play the CD from one position to another (both in frames.)
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*/
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int
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gen_play(d, start, end)
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struct wm_drive *d;
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int start, end;
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{
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struct CD_PlayAddr msf;
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msf.addrmode = CD_MSF;
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msf.addr.msf.startmsf.min = start / (60*75);
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msf.addr.msf.startmsf.sec = (start % (60*75)) / 75;
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msf.addr.msf.startmsf.frame = start % 75;
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msf.addr.msf.endmsf.min = end / (60*75);
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msf.addr.msf.endmsf.sec = (end % (60*75)) / 75;
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msf.addr.msf.endmsf.frame = end % 75;
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if (CD_Play(d->fd, &msf))
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{
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printf("wm_cd_play_chunk(%d,%d)\n",start,end);
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printf("msf = %d:%d:%d %d:%d:%d\n",
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msf.addr.msf.startmsf.min,
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msf.addr.msf.startmsf.sec,
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msf.addr.msf.startmsf.frame,
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msf.addr.msf.endmsf.min,
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msf.addr.msf.endmsf.sec,
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msf.addr.msf.endmsf.frame);
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perror("CD_Play");
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return (-1);
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}
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return (0);
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}
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/*
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* Eject the current CD, if there is one.
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*/
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int
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gen_eject(d)
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struct wm_drive *d;
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{
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struct stat stbuf;
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struct ustat ust;
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if (fstat(d->fd, &stbuf) != 0)
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return (-2);
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/* Is this a mounted filesystem? */
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if (ustat(stbuf.st_rdev, &ust) == 0)
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return (-3);
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if (CD_AutoEject(d->fd))
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return (-1);
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/* Close the device if it needs to vanish. */
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if (intermittent_dev)
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{
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WMclose(d->fd);
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d->fd = -1;
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}
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return (0);
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}
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/*----------------------------------------*
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* Close the CD tray
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*
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* Please edit and send changes to
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* milliByte@DeathsDoor.com
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*----------------------------------------*/
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int gen_closetray(struct wm_drive *d)
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{
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#ifdef CAN_CLOSE
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if(!close(d->fd))
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{
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d->fd=-1;
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return(wmcd_reopen(d));
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} else {
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return(-1);
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}
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#else
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/* Always succeed if the drive can't close */
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return(0);
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#endif /* CAN_CLOSE */
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} /* gen_closetray() */
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/*
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* Close the CD device.
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*/
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int
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WMclose(fd)
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int fd;
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{
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int ret;
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ret = CD_Close(fd);
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wm_susleep(3000000);
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return (ret);
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}
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/*
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* Read the initial volume from the drive, if available. Each channel
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* ranges from 0 to 100, with -1 indicating data not available.
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*/
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int
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gen_get_volume(d, left, right)
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struct wm_drive *d;
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int *left, *right;
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{
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/* Suns, HPs, Linux, NEWS can't read the volume; oh well */
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*left = *right = -1;
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return (0);
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}
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/*
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* Pass SCSI commands to the device.
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*/
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int
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wm_scsi(d, cdb, cdblen, buf, buflen, getreply)
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struct wm_drive *d;
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unsigned char *cdb, *buf;
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int cdblen, buflen, getreply;
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{
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/* NEWS can't do SCSI passthrough... or can it? */
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return (-1);
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}
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/*
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* Open the CD device and figure out what kind of drive is attached.
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*/
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int
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wmcd_open(d)
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struct wm_drive *d;
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{
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int fd;
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static int warned = 0;
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char vendor[32] = WM_STR_GENVENDOR;
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char model[32] = WM_STR_GENMODEL;
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char rev[32] = WM_STR_GENREV;
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if (d->fd >= 0) /* Device already open? */
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return (0);
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intermittent_dev = 1;
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if (cd_device == NULL)
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cd_device = DEFAULT_CD_DEVICE;
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if ((d->fd = CD_Open(cd_device, 0)) < 0)
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{
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/* Solaris 2.2 volume manager moves links around */
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if (errno == ENOENT && intermittent_dev)
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return (0);
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if (errno == EACCES)
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{
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if (!warned)
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{
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char realname[MAXPATHLEN];
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if (realpath(cd_device, realname) == NULL)
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{
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perror("realpath");
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return (0);
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}
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fprintf(stderr,
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"As root, please run\n\nchmod 666 %s\n\n%s\n", realname,
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"to give yourself permission to access the CD-ROM device.");
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warned++;
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}
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}
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else if (errno != EIO) /* defined at top */
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{
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perror(cd_device);
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exit(1);
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}
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/* No CD in drive. */
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return (1);
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}
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if (warned)
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{
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warned = 0;
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fprintf(stderr, "Thank you.\n");
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}
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/* Now fill in the relevant parts of the wm_drive structure. */
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fd = d->fd;
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/* Figure out the drive type, if possible */
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wm_scsi_get_drive_type(d, vendor, model, rev);
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*d = *(find_drive_struct(vendor, model, rev));
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wm_drive_settype(vendor, model, rev);
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d->fd = fd;
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(d->init)(d);
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return (0);
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} /* wmcd_open() */
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/*
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* Re-Open the device if it is open.
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*/
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int
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wmcd_reopen( struct wm_drive *d )
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{
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int status;
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do {
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_reopen ");
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if (d->fd >= 0) /* Device really open? */
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{
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closes the device and ");
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status = close( d->fd ); /* close it! */
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/* we know, that the file is closed, do we? */
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d->fd = -1;
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}
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wm_susleep( 1000 );
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "calls wmcd_open()\n");
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status = wmcd_open( d ); /* open it as usual */
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wm_susleep( 1000 );
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} while ( status != 0 );
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return status;
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} /* wmcd_reopen() */
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#endif
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