Home | History | Annotate | Line # | Download | only in isa
mcdreg.h revision 1.5 
      1 /*	$NetBSD: mcdreg.h,v 1.5 1994/10/27 04:17:59 cgd Exp $	*/
      2 
      3 /*
      4  * Copyright 1993 by Holger Veit (data part)
      5  * Copyright 1993 by Brian Moore (audio part)
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This software was developed by Holger Veit and Brian Moore
     19  *      for use with "386BSD" and similar operating systems.
     20  *    "Similar operating systems" includes mainly non-profit oriented
     21  *    systems for research and education, including but not restricted to
     22  *    "NetBSD", "FreeBSD", "Mach" (by CMU).
     23  * 4. Neither the name of the developer(s) nor the name "386BSD"
     24  *    may be used to endorse or promote products derived from this
     25  *    software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
     28  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER(S) BE
     31  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     32  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
     33  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     34  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     35  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     36  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     37  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     38  *
     39  * This file contains definitions for some cdrom control commands
     40  * and status codes. This info was "inherited" from the DOS MTMCDE.SYS
     41  * driver, and is thus not complete (and may even be wrong). Some day
     42  * the manufacturer or anyone else might provide better documentation,
     43  * so this file (and the driver) will then have a better quality.
     44  */
     45 
     46 #ifdef __GNUC__
     47 #if __GNUC__ >= 2
     48 #pragma pack(1)
     49 #endif
     50 #endif
     51 
     52 typedef unsigned char	bcd_t;
     53 #define	M_msf(msf)	msf[0]
     54 #define	S_msf(msf)	msf[1]
     55 #define	F_msf(msf)	msf[2]
     56 
     57 /* io lines used */
     58 #define	MCD_IO_BASE	0x300
     59 
     60 #define	mcd_command	0
     61 #define	mcd_status	0
     62 #define	mcd_rdata	0
     63 
     64 #define	mcd_reset	1
     65 #define	mcd_xfer	1
     66 #define	mcd_ctl2	2 /* XXX Is this right? */
     67 
     68 #define	mcd_config	3
     69 #define	MCD_MASK_DMA	0x07	/* bits 2-0 = DMA channel */
     70 #define	MCD_MASK_IRQ	0x70	/* bits 6-4 = INT number */
     71 				/* 001 = int 2,9 */
     72 				/* 010 = int 3 */
     73 				/* 011 = int 5 */
     74 				/* 100 = int 10 */
     75 				/* 101 = int 11 */
     76 
     77 /* Status bits */
     78 #define	MCD_ST_DOOROPEN		0x80
     79 #define	MCD_ST_DSKIN		0x40
     80 #define	MCD_ST_DSKCHNG		0x20
     81 #define	MCD_ST_BUSY		0x04
     82 #define	MCD_ST_AUDIOBSY		0x02
     83 
     84 /* commands known by the controller */
     85 #define	MCD_CMDRESET		0x00
     86 #define	MCD_CMDGETVOLINFO	0x10	/* gets mcd_volinfo */
     87 #define	MCD_CMDGETQCHN		0x20	/* gets mcd_qchninfo */
     88 #define	MCD_CMDGETSTAT		0x40	/* gets a byte of status */
     89 #define	MCD_CMDSETMODE		0x50	/* set transmission mode, needs byte */
     90 #define	MCD_MD_RAW		0x60
     91 #define	MCD_MD_COOKED		0x01
     92 #define	MCD_MD_TOC		0x05
     93 #define	MCD_CMDSTOPAUDIO	0x70
     94 #define	MCD_CMDGETVOLUME	0x8E	/* gets mcd_volume */
     95 #define	MCD_CMDSETVOLUME	0xAE	/* sets mcd_volume */
     96 #define	MCD_CMDREAD1		0xB0	/* read n sectors */
     97 #define	MCD_CMDREAD2		0xC0	/* read from-to */
     98 #define	MCD_CMDCONTINFO		0xDC	/* Get controller info */
     99 #define	MCD_CMDEJECTDISK	0xF6
    100 #define	MCD_CMDCLOSETRAY	0xF8
    101 #define	MCD_CMDLOCKDRV		0xFE	/* needs byte */
    102 #define	MCD_LK_UNLOCK	0x00
    103 #define	MCD_LK_LOCK	0x01
    104 #define	MCD_LK_TEST	0x02
    105 
    106 struct mcd_volinfo {
    107 	bcd_t	trk_low;
    108 	bcd_t	trk_high;
    109 	bcd_t	vol_msf[3];
    110 	bcd_t	trk1_msf[3];
    111 };
    112 
    113 struct mcd_qchninfo {
    114 	u_char	ctrl_adr;
    115 	u_char	trk_no;
    116 	u_char	idx_no;
    117 	bcd_t	trk_size_msf[3];
    118 	u_char	:8;
    119 	bcd_t	hd_pos_msf[3];
    120 };
    121 
    122 struct mcd_volume {
    123 	u_char	v0l;
    124 	u_char	v0rs;
    125 	u_char	v0r;
    126 	u_char	v0ls;
    127 };
    128 
    129 struct mcd_read1 {
    130 	bcd_t	start_msf[3];
    131 	u_char	nsec[3];
    132 };
    133 
    134 struct mcd_read2 {
    135 	bcd_t	start_msf[3];
    136 	bcd_t	end_msf[3];
    137 };
    138