cdr102_read_cdda.c

对SCSI设备 直接存取的通用库

/*
  cdr102_read_cdda -- read digital audio data
  Copyright (C) 1996 Dieter Baron and Armin Obersteiner

  This file is part of libscsi, a library for direct scsi device access
  The authors can be contacted at
	<[e-mail]>
	<[e-mail]>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <stddef.h>
#include <scsi/da.h>



int
sc_cdr102_read_cdda(SCSI *fd, int subq, u_long lba,
		    u_long tl, size_t len, u_char *data)
{
    static unsigned char cmd[12] = { 0xd8 };
    int result;

    sc_store_l(cmd+2, lba);
    sc_store_l(cmd+6, tl);
    cmd[10] = (subq ? 1 : 0);
    
    return sc_send(fd, SC_READ, 12, cmd, len, data);
}