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/drivers/cdrom/mcdx.h

https://bitbucket.org/evzijst/gittest
C Header | 185 lines | 83 code | 22 blank | 80 comment | 1 complexity | 9317574b4b1e54e681f5f095d0dd0ffc MD5 | raw file
  1/*
  2 * Definitions for the Mitsumi CDROM interface
  3 * Copyright (C) 1995 1996 Heiko Schlittermann <heiko@lotte.sax.de>
  4 * VERSION: @VERSION@
  5 * 
  6 * This program is free software; you can redistribute it and/or modify
  7 * it under the terms of the GNU General Public License as published by
  8 * the Free Software Foundation; either version 2, or (at your option)
  9 * any later version.
 10 * 
 11 * This program is distributed in the hope that it will be useful,
 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14 * GNU General Public License for more details.
 15 * 
 16 * You should have received a copy of the GNU General Public License
 17 * along with this program; see the file COPYING.  If not, write to
 18 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 19 *
 20 * Thanks to
 21 *  The Linux Community at all and ...
 22 *  Martin Harris (he wrote the first Mitsumi Driver)
 23 *  Eberhard Moenkeberg (he gave me much support and the initial kick)
 24 *  Bernd Huebner, Ruediger Helsch (Unifix-Software Gmbh, they
 25 *      improved the original driver)
 26 *  Jon Tombs, Bjorn Ekwall (module support)
 27 *  Daniel v. Mosnenck (he sent me the Technical and Programming Reference)
 28 *  Gerd Knorr (he lent me his PhotoCD)
 29 *  Nils Faerber and Roger E. Wolff (extensively tested the LU portion)
 30 *  Andreas Kies (testing the mysterious hang up's)
 31 *  ... somebody forgotten?
 32 *  Marcin Dalecki
 33 *  
 34 */
 35
 36/*
 37 *	The following lines are for user configuration
 38 *	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 39 *
 40 *	{0|1} -- 1 if you want the driver detect your drive, may crash and
 41 *	needs a long time to seek.  The higher the address the longer the
 42 *	seek.
 43 *
 44 *  WARNING: AUTOPROBE doesn't work.
 45 */
 46#define MCDX_AUTOPROBE 0
 47
 48/*
 49 *	Drive specific settings according to the jumpers on the controller
 50 *	board(s).
 51 *	o	MCDX_NDRIVES  :  number of used entries of the following table
 52 *	o	MCDX_DRIVEMAP :  table of {i/o base, irq} per controller
 53 *
 54 *	NOTE: I didn't get a drive at irq 9(2) working.  Not even alone.
 55 */
 56#if MCDX_AUTOPROBE == 0
 57	#define MCDX_NDRIVES 1
 58	#define MCDX_DRIVEMAP {		\
 59			{0x300, 11},	\
 60			{0x304, 05},  	\
 61			{0x000, 00},  	\
 62			{0x000, 00},  	\
 63			{0x000, 00},  	\
 64	  	}
 65#else
 66	#error Autoprobing is not implemented yet.
 67#endif
 68
 69#ifndef MCDX_QUIET
 70#define MCDX_QUIET   1
 71#endif
 72
 73#ifndef MCDX_DEBUG
 74#define MCDX_DEBUG   0
 75#endif
 76
 77/* *** make the following line uncommented, if you're sure,
 78 * *** all configuration is done */
 79/* #define I_WAS_HERE */
 80
 81/*	The name of the device */
 82#define MCDX "mcdx"	
 83
 84/* Flags for DEBUGGING */
 85#define INIT 		0
 86#define MALLOC 		0
 87#define IOCTL 		0
 88#define PLAYTRK     0
 89#define SUBCHNL     0
 90#define TOCHDR      0
 91#define MS          0
 92#define PLAYMSF     0
 93#define READTOC     0
 94#define OPENCLOSE 	0
 95#define HW		    0
 96#define TALK		0
 97#define IRQ 		0
 98#define XFER 		0
 99#define REQUEST	 	0
100#define SLEEP		0
101
102/*	The following addresses are taken from the Mitsumi Reference 
103 *  and describe the possible i/o range for the controller.
104 */
105#define MCDX_IO_BEGIN	((char*) 0x300)	/* first base of i/o addr */
106#define MCDX_IO_END		((char*) 0x3fc)	/* last base of i/o addr */
107
108/*	Per controller 4 bytes i/o are needed. */
109#define MCDX_IO_SIZE		4
110
111/*
112 *	Bits
113 */
114
115/* The status byte, returned from every command, set if
116 * the description is true */
117#define MCDX_RBIT_OPEN       0x80	/* door is open */
118#define MCDX_RBIT_DISKSET    0x40	/* disk set (recognised) */
119#define MCDX_RBIT_CHANGED    0x20	/* disk was changed */
120#define MCDX_RBIT_CHECK      0x10	/* disk rotates, servo is on */
121#define MCDX_RBIT_AUDIOTR    0x08   /* current track is audio */
122#define MCDX_RBIT_RDERR      0x04	/* read error, refer SENSE KEY */
123#define MCDX_RBIT_AUDIOBS    0x02	/* currently playing audio */
124#define MCDX_RBIT_CMDERR     0x01	/* command, param or format error */
125
126/* The I/O Register holding the h/w status of the drive,
127 * can be read at i/o base + 1 */
128#define MCDX_RBIT_DOOR       0x10	/* door is open */
129#define MCDX_RBIT_STEN       0x04	/* if 0, i/o base contains drive status */
130#define MCDX_RBIT_DTEN       0x02	/* if 0, i/o base contains data */
131
132/*
133 *	The commands.
134 */
135
136#define OPCODE	1		/* offset of opcode */
137#define MCDX_CMD_REQUEST_TOC		1, 0x10
138#define MCDX_CMD_REQUEST_STATUS		1, 0x40 
139#define MCDX_CMD_RESET				1, 0x60
140#define MCDX_CMD_REQUEST_DRIVE_MODE	1, 0xc2
141#define MCDX_CMD_SET_INTERLEAVE		2, 0xc8, 0
142#define MCDX_CMD_DATAMODE_SET		2, 0xa0, 0
143	#define MCDX_DATAMODE1		0x01
144	#define MCDX_DATAMODE2		0x02
145#define MCDX_CMD_LOCK_DOOR		2, 0xfe, 0
146
147#define READ_AHEAD			4	/* 8 Sectors (4K) */
148
149/*	Useful macros */
150#define e_door(x)		((x) & MCDX_RBIT_OPEN)
151#define e_check(x)		(~(x) & MCDX_RBIT_CHECK)
152#define e_notset(x)		(~(x) & MCDX_RBIT_DISKSET)
153#define e_changed(x)	((x) & MCDX_RBIT_CHANGED)
154#define e_audio(x)		((x) & MCDX_RBIT_AUDIOTR)
155#define e_audiobusy(x)	((x) & MCDX_RBIT_AUDIOBS)
156#define e_cmderr(x)		((x) & MCDX_RBIT_CMDERR)
157#define e_readerr(x)	((x) & MCDX_RBIT_RDERR)
158
159/**	no drive specific */
160#define MCDX_CDBLK	2048	/* 2048 cooked data each blk */
161
162#define MCDX_DATA_TIMEOUT	(HZ/10)	/* 0.1 second */
163
164/*
165 * Access to the msf array
166 */
167#define MSF_MIN		0			/* minute */
168#define MSF_SEC		1			/* second */
169#define MSF_FRM		2			/* frame  */
170
171/*
172 * Errors
173 */
174#define MCDX_E		1			/* unspec error */
175#define MCDX_ST_EOM 0x0100		/* end of media */
176#define MCDX_ST_DRV 0x00ff		/* mask to query the drive status */
177
178#ifndef I_WAS_HERE
179#ifndef MODULE
180#warning You have not edited mcdx.h
181#warning Perhaps irq and i/o settings are wrong.
182#endif
183#endif
184
185/* ex:set ts=4 sw=4: */