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-rw-r--r--drivers/cdrom/mcdx.h185
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diff --git a/drivers/cdrom/mcdx.h b/drivers/cdrom/mcdx.h
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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: */
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