106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*
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* Definitions for a Mitsumi CD-ROM interface
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*
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* Copyright (C) 1992 Martin Harriss
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*
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* martin@bdsi.com
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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 of the License, or
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* (at your option) 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; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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/* *** change this to set the I/O port address */
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#define MCD_BASE_ADDR 0x300
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/* *** change this to set the interrupt number */
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#define MCD_INTR_NR 11
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/* Increase this if you get lots of timeouts */
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#define MCD_STATUS_DELAY 100
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/* number of times to retry a command before giving up */
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#define MCD_RETRY_ATTEMPTS 3
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/* port access macro */
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#define MCDPORT(x) (mcd_port + (x))
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/* status bits */
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#define MST_CMD_CHECK 0x01 /* command error */
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#define MST_BUSY 0x02 /* now playing */
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#define MST_READ_ERR 0x04 /* read error */
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#define MST_DSK_TYPE 0x08
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#define MST_SERVO_CHECK 0x10
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#define MST_DSK_CHG 0x20 /* disk removed or changed */
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#define MST_READY 0x40 /* disk in the drive */
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#define MST_DOOR_OPEN 0x80 /* door is open */
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/* flag bits */
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#define MFL_DATA 0x02 /* data available */
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#define MFL_STATUS 0x04 /* status available */
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/* commands */
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#define MCMD_GET_DISK_INFO 0x10 /* read info from disk */
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#define MCMD_GET_Q_CHANNEL 0x20 /* read info from q channel */
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#define MCMD_GET_STATUS 0x40
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#define MCMD_SET_MODE 0x50
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#define MCMD_SOFT_RESET 0x60
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#define MCMD_STOP 0x70 /* stop play */
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#define MCMD_CONFIG_DRIVE 0x90
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#define MCMD_SET_VOLUME 0xAE /* set audio level */
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#define MCMD_PLAY_READ 0xC0 /* play or read data */
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#define MCMD_GET_VERSION 0xDC
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/* borrowed from hd.c */
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#define READ_DATA(port, buf, nr) \
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insb(port, buf, nr)
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#define SET_TIMER(func, jifs) \
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((timer_table[MCD_TIMER].expires = jiffies + jifs), \
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(timer_table[MCD_TIMER].fn = func), \
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(timer_active |= 1<<MCD_TIMER))
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#define CLEAR_TIMER timer_active &= ~(1<<MCD_TIMER)
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#define MAX_TRACKS 104
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struct msf {
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unsigned char min;
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unsigned char sec;
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unsigned char frame;
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};
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struct mcd_Play_msf {
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struct msf start;
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struct msf end;
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};
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struct mcd_DiskInfo {
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unsigned char first;
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unsigned char last;
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struct msf diskLength;
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struct msf firstTrack;
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};
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struct mcd_Toc {
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unsigned char ctrl_addr;
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unsigned char track;
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unsigned char pointIndex;
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struct msf trackTime;
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struct msf diskTime;
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};
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