sys/i386/isa/mcdreg.h

/*
 * Copyright 1993 by Holger Veit (data part)
 * Copyright 1993 by Brian Moore (audio part)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This software was developed by Holger Veit and Brian Moore
 *      for use with "386BSD" and similar operating systems.
 *    "Similar operating systems" includes mainly non-profit oriented
 *    systems for research and education, including but not restricted to
 *    "NetBSD", "FreeBSD", "Mach" (by CMU).
 * 4. Neither the name of the developer(s) nor the name "386BSD"
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER(S) BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This file contains definitions for some cdrom control commands
 * and status codes. This info was "inherited" from the DOS MTMCDE.SYS
 * driver, and is thus not complete (and may even be wrong). Some day
 * the manufacturer or anyone else might provide better documentation,
 * so this file (and the driver) will then have a better quality.
 *
 *      $Id$
 */

#ifndef MCD_H
#define MCD_H

#ifdef __GNUC__
#if __GNUC__ >= 2
#pragma pack(1)
#endif
#endif

typedef unsigned char   bcd_t;
#define M_msf(msf)      msf[0]
#define S_msf(msf)      msf[1]
#define F_msf(msf)      msf[2]

/* io lines used */
#define MCD_IO_BASE     0x300

#define mcd_command     0
#define mcd_status      0
#define mcd_rdata       0

#define mcd_reset       1
#define mcd_xfer        1
#define mcd_ctl2        2 /* XXX Is this right? */

#define mcd_config      3
#define MCD_MASK_DMA    0x07    /* bits 2-0 = DMA channel */
#define MCD_MASK_IRQ    0x70    /* bits 6-4 = INT number */
                                /* 001 = int 2,9 */
                                /* 010 = int 3 */
                                /* 011 = int 5 */
                                /* 100 = int 10 */
                                /* 101 = int 11 */
/* flags */
#define STATUS_AVAIL    0xb
#define DATA_AVAIL      0xf

/* ports */
#define MCD_DATA        0
#define MCD_FLAGS       1
#define MCD_DONT_KNOW   2       /* What are these two ports for??? */
#define CHANNEL         3

/* Status bits */
#define MCD_ST_DOOROPEN         0x80
#define MCD_ST_DSKIN            0x40
#define MCD_ST_DSKCHNG          0x20
#define MCD_ST_BUSY             0x04
#define MCD_ST_AUDIOBSY         0x02

/* commands known by the controller */
#define MCD_CMDRESET            0x00
#define MCD_CMDGETVOLINFO       0x10    /* gets mcd_volinfo */
#define MCD_CMDGETQCHN          0x20    /* gets mcd_qchninfo */
#define MCD_CMDGETSTAT          0x40    /* gets a byte of status */
#define MCD_CMDSETMODE          0x50    /* set transmission mode, needs byte */
#define MCD_MD_RAW              0x60
#define MCD_MD_COOKED           0x01
#define MCD_MD_TOC              0x05
#define MCD_CMDSTOPAUDIO        0x70
#define MCD_CMDGETVOLUME        0x8E    /* gets mcd_volume */
#define MCD_CMDSETVOLUME        0xAE    /* sets mcd_volume */
#define MCD_CMDREAD1            0xB0    /* read n sectors */
#define MCD_CMDREAD2            0xC0    /* read from-to */
#define MCD_CMDCONTINFO         0xDC    /* Get controller info */
#define MCD_CMDEJECTDISK        0xF6
#define MCD_CMDCLOSETRAY        0xF8
#define MCD_CMDLOCKDRV          0xFE    /* needs byte */
#define MCD_LK_UNLOCK   0x00
#define MCD_LK_LOCK     0x01
#define MCD_LK_TEST     0x02

struct mcd_volinfo {
        bcd_t   trk_low;
        bcd_t   trk_high;
        bcd_t   vol_msf[3];
        bcd_t   trk1_msf[3];
};

struct mcd_qchninfo {
        u_char  ctrl_adr;
        u_char  trk_no;
        u_char  idx_no;
        bcd_t   trk_size_msf[3];
        u_char  :8;
        bcd_t   hd_pos_msf[3];
};

struct mcd_volume {
        u_char  v0l;
        u_char  v0rs;
        u_char  v0r;
        u_char  v0ls;
};

struct mcd_read1 {
        bcd_t   start_msf[3];
        u_char  nsec[3];
};

struct mcd_read2 {
        bcd_t   start_msf[3];
        bcd_t   end_msf[3];
};
#endif /* MCD_H */