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: */
186
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