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427 lines
8.5 KiB
427 lines
8.5 KiB
/*
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* $Id$
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*
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* SCO Openserver R5 specific. Derived from the KSCD plat_scor5.c
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*
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*/
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static char plat_linux_id[] = "$Id$";
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#if defined(M_UNIX) || defined(__M_UNIX)
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#include "include/wm_config.h"
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#include <sys/types.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/stat.h>
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#include <sys/scsi.h>
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#include <sys/scsicmd.h>
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#include <errno.h>
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#include <macros.h>
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#include "include/wm_struct.h"
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#include "include/wm_scsi.h"
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#include "include/wm_cdtext.h"
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#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
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#define SENSE_SZ EXTD_SENSE_LEN
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void *malloc();
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char *strchr();
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int min_volume = 0;
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int max_volume = 255;
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/*
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* platformspecific internal function
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*/
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static int
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create_cdrom_node(char *dev_name)
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{
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char pass_through[100];
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int file_des;
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struct stat sbuf;
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int err;
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int ccode;
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strncpy(pass_through, dev_name, sizeof(pass_through)-2);
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strcat(pass_through, "p" );
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if (setreuid(-1,0) < 0)
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{
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perror("setregid/setreuid/access");
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return -1;
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}
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ccode = access(pass_through, F_OK);
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if (ccode < 0)
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{
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if (stat(dev_name, &sbuf) < 0)
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{
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perror("Call to get pass-through device number failed");
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return -1;
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}
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if (mknod(pass_through, (S_IFCHR | S_IREAD | S_IWRITE),
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sbuf.st_rdev) < 0)
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{
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perror("Unable to make pass-through node");
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return -1;
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}
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if (chown(pass_through, 0 , 0) < 0)
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{
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perror("chown");
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return -1;
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}
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if (chmod(pass_through, 0660 ) < 0)
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{
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perror("chmod");
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return -1;
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}
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}
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file_des = open( pass_through, O_RDONLY);
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err = errno;
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/*
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if ( (setreuid(-1,getuid()) < 0) || (setregid(-1,getgid()) < 0) )
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{
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perror("setreuid/setregid");
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exit(1);
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}
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*/
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errno = err;
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return file_des;
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} /* create_cdrom_node() */
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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( struct wm_drive *d )
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{
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return (0);
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} /* gen_init() */
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/*
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* Open the CD and figure out which kind of drive is attached.
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*/
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int
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wmcd_open( 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[9], model[17], rev[5];
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if (d->fd >= 0) /* Device already open? */
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{
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): [device is open (fd=%d)]\n", d->fd);
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return (0);
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}
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if (d->cd_device == NULL)
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{
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fprintf(stderr,"cd_device string empty\n");
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return (-1);
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}
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d->fd = create_cdrom_node(d->cd_device); /* this will do open */
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if (d->fd < 0)
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{
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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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fprintf(stderr,"Cannot access %s\n",d->cd_device);
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warned++;
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}
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}
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else if (errno != EINTR)
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{
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perror(d->cd_device);
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return( -6 );
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}
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/* can not acces CDROM device */
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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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if (wm_scsi_get_drive_type(d, vendor, model, rev) < 0)
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{
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perror("Cannot inquiry drive for it's type");
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return (-1);
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}
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find_drive_struct(vendor, model, rev);
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d->fd = fd;
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return (0);
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} /* wmcd_open */
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/*
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* Re-Open the device
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*/
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wmcd_reopen( struct wm_drive *d )
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{
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int status;
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int tries = 0;
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do {
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gen_close(d);
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susleep( 1000 );
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status = wmcd_open( d );
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susleep( 1000 );
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tries++;
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} while ( (status != 0) && (tries < 10) );
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return status;
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} /* wmcd_reopen() */
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/*
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* Send a SCSI command out the bus.
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*/
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int
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wm_scsi(struct wm_drive *d, unsigned char *xcdb, int cdblen,
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char *retbuf, int retbuflen, int getreply)
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{
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int ccode;
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int file_des = d->fd;
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unsigned char sense_buffer[ SENSE_SZ ];
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/* getreply == 1 is read, == 0 is write */
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struct scsicmd2 sb; /* Use command with automatic sense */
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if (cdblen > SCSICMDLEN)
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{
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fprintf(stderr,"Cannot handle longer commands than %d bytes.\n", SCSICMDLEN);
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exit(-1);
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}
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/* Get the command */
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memcpy(sb.cmd.cdb, xcdb, cdblen);
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sb.cmd.cdb_len = cdblen;
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/* Point to data buffer */
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sb.cmd.data_ptr = retbuf;
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sb.cmd.data_len = retbuflen;
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/* Is this write or read ? */
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sb.cmd.is_write = (getreply==1) ? 0 : 1;
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/* Zero out return status fields */
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sb.cmd.host_sts = 0;
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sb.cmd.target_sts = 0;
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/* Set up for possible sense info */
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sb.sense_ptr = sense_buffer;
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sb.sense_len = sizeof(sense_buffer);
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ccode = ioctl(file_des, SCSIUSERCMD2, &sb);
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if ( sb.cmd.target_sts != 02 )
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return ccode;
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return 0;
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} /* wm_scsi() */
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int
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gen_close( struct wm_drive *d )
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{
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if(d->fd != -1) {
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closing the device\n");
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close(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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void
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keep_cd_open() { }
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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(wm_drive *d, int oldmode, int *mode,
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int *pos, int *track, int *index)
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{
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return (wm_scsi2_get_drive_status(d, oldmode, mode, pos, track, index));
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} /* gen_get_drive_status() */
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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(struct wm_drive *d, int *tracks)
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{
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return (wm_scsi2_get_trackcount(d, tracks));
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} /* gen_get_trackcount() */
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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(struct wm_drive *d, int track, int *data, int *startframe)
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{
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return (wm_scsi2_get_trackinfo(d, track, data, startframe));
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} /* gen_get_trackinfo() */
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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(struct wm_drive *d, int *frames)
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{
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return (wm_scsi2_get_cdlen(d, frames));
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} /* gen_get_cdlen() */
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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(struct wm_drive *d, int start, int end)
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{
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return (wm_scsi2_play(d, start, end));
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} /* gen_play() */
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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( struct wm_drive *d )
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{
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return (wm_scsi2_pause(d));
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} /* gen_pause() */
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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( struct wm_drive *d )
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{
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return (wm_scsi2_resume(d));
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} /* gen_resume() */
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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(struct wm_drive *d)
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{
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return (wm_scsi2_stop(d));
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} /* gen_stop() */
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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(struct wm_drive *d)
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{
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int stat;
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stat = wm_scsi2_eject(d);
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sleep(2);
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return (stat);
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} /* gen_eject() */
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int
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gen_closetray(struct wm_drive *d)
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{
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return(wm_scsi2_closetray(d));
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} /* gen_closetray() */
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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(struct wm_drive *d, int left, int right)
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{
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return (wm_scsi2_set_volume(d, left, right));
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} /* gen_set_volume() */
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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(struct wm_drive *d, int *left, int *right)
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{
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return (wm_scsi2_get_volume(d, left, right));
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} /* gen_get_volume() */
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/*------------------------------------------------------------------------*
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* gen_get_cdtext(drive, buffer, length)
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*------------------------------------------------------------------------*/
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int
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gen_get_cdtext(struct wm_drive *d, unsigned char **pp_buffer, int *p_buffer_length)
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{
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/* This needs to be tested! */
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return wm_scsi_get_cdtext(d, pp_buffer, p_buffer_length);
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} /* gen_get_cdtext() */
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#endif /* M_UNIX */
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