1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
185 lines
5.5 KiB
C
185 lines
5.5 KiB
C
/*
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* Definitions for the Mitsumi CDROM interface
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* Copyright (C) 1995 1996 Heiko Schlittermann <heiko@lotte.sax.de>
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* VERSION: @VERSION@
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Thanks to
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* The Linux Community at all and ...
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* Martin Harris (he wrote the first Mitsumi Driver)
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* Eberhard Moenkeberg (he gave me much support and the initial kick)
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* Bernd Huebner, Ruediger Helsch (Unifix-Software Gmbh, they
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* improved the original driver)
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* Jon Tombs, Bjorn Ekwall (module support)
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* Daniel v. Mosnenck (he sent me the Technical and Programming Reference)
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* Gerd Knorr (he lent me his PhotoCD)
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* Nils Faerber and Roger E. Wolff (extensively tested the LU portion)
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* Andreas Kies (testing the mysterious hang up's)
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* ... somebody forgotten?
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* Marcin Dalecki
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*
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*/
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/*
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* The following lines are for user configuration
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* {0|1} -- 1 if you want the driver detect your drive, may crash and
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* needs a long time to seek. The higher the address the longer the
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* seek.
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*
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* WARNING: AUTOPROBE doesn't work.
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*/
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#define MCDX_AUTOPROBE 0
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/*
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* Drive specific settings according to the jumpers on the controller
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* board(s).
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* o MCDX_NDRIVES : number of used entries of the following table
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* o MCDX_DRIVEMAP : table of {i/o base, irq} per controller
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*
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* NOTE: I didn't get a drive at irq 9(2) working. Not even alone.
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*/
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#if MCDX_AUTOPROBE == 0
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#define MCDX_NDRIVES 1
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#define MCDX_DRIVEMAP { \
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{0x300, 11}, \
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{0x304, 05}, \
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{0x000, 00}, \
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{0x000, 00}, \
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{0x000, 00}, \
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}
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#else
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#error Autoprobing is not implemented yet.
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#endif
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#ifndef MCDX_QUIET
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#define MCDX_QUIET 1
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#endif
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#ifndef MCDX_DEBUG
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#define MCDX_DEBUG 0
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#endif
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/* *** make the following line uncommented, if you're sure,
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* *** all configuration is done */
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/* #define I_WAS_HERE */
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/* The name of the device */
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#define MCDX "mcdx"
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/* Flags for DEBUGGING */
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#define INIT 0
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#define MALLOC 0
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#define IOCTL 0
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#define PLAYTRK 0
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#define SUBCHNL 0
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#define TOCHDR 0
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#define MS 0
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#define PLAYMSF 0
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#define READTOC 0
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#define OPENCLOSE 0
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#define HW 0
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#define TALK 0
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#define IRQ 0
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#define XFER 0
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#define REQUEST 0
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#define SLEEP 0
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/* The following addresses are taken from the Mitsumi Reference
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* and describe the possible i/o range for the controller.
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*/
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#define MCDX_IO_BEGIN ((char*) 0x300) /* first base of i/o addr */
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#define MCDX_IO_END ((char*) 0x3fc) /* last base of i/o addr */
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/* Per controller 4 bytes i/o are needed. */
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#define MCDX_IO_SIZE 4
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/*
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* Bits
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*/
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/* The status byte, returned from every command, set if
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* the description is true */
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#define MCDX_RBIT_OPEN 0x80 /* door is open */
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#define MCDX_RBIT_DISKSET 0x40 /* disk set (recognised) */
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#define MCDX_RBIT_CHANGED 0x20 /* disk was changed */
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#define MCDX_RBIT_CHECK 0x10 /* disk rotates, servo is on */
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#define MCDX_RBIT_AUDIOTR 0x08 /* current track is audio */
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#define MCDX_RBIT_RDERR 0x04 /* read error, refer SENSE KEY */
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#define MCDX_RBIT_AUDIOBS 0x02 /* currently playing audio */
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#define MCDX_RBIT_CMDERR 0x01 /* command, param or format error */
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/* The I/O Register holding the h/w status of the drive,
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* can be read at i/o base + 1 */
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#define MCDX_RBIT_DOOR 0x10 /* door is open */
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#define MCDX_RBIT_STEN 0x04 /* if 0, i/o base contains drive status */
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#define MCDX_RBIT_DTEN 0x02 /* if 0, i/o base contains data */
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/*
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* The commands.
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*/
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#define OPCODE 1 /* offset of opcode */
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#define MCDX_CMD_REQUEST_TOC 1, 0x10
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#define MCDX_CMD_REQUEST_STATUS 1, 0x40
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#define MCDX_CMD_RESET 1, 0x60
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#define MCDX_CMD_REQUEST_DRIVE_MODE 1, 0xc2
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#define MCDX_CMD_SET_INTERLEAVE 2, 0xc8, 0
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#define MCDX_CMD_DATAMODE_SET 2, 0xa0, 0
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#define MCDX_DATAMODE1 0x01
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#define MCDX_DATAMODE2 0x02
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#define MCDX_CMD_LOCK_DOOR 2, 0xfe, 0
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#define READ_AHEAD 4 /* 8 Sectors (4K) */
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/* Useful macros */
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#define e_door(x) ((x) & MCDX_RBIT_OPEN)
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#define e_check(x) (~(x) & MCDX_RBIT_CHECK)
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#define e_notset(x) (~(x) & MCDX_RBIT_DISKSET)
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#define e_changed(x) ((x) & MCDX_RBIT_CHANGED)
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#define e_audio(x) ((x) & MCDX_RBIT_AUDIOTR)
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#define e_audiobusy(x) ((x) & MCDX_RBIT_AUDIOBS)
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#define e_cmderr(x) ((x) & MCDX_RBIT_CMDERR)
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#define e_readerr(x) ((x) & MCDX_RBIT_RDERR)
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/** no drive specific */
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#define MCDX_CDBLK 2048 /* 2048 cooked data each blk */
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#define MCDX_DATA_TIMEOUT (HZ/10) /* 0.1 second */
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/*
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* Access to the msf array
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*/
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#define MSF_MIN 0 /* minute */
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#define MSF_SEC 1 /* second */
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#define MSF_FRM 2 /* frame */
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/*
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* Errors
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*/
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#define MCDX_E 1 /* unspec error */
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#define MCDX_ST_EOM 0x0100 /* end of media */
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#define MCDX_ST_DRV 0x00ff /* mask to query the drive status */
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#ifndef I_WAS_HERE
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#ifndef MODULE
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#warning You have not edited mcdx.h
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#warning Perhaps irq and i/o settings are wrong.
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#endif
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#endif
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/* ex:set ts=4 sw=4: */
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