sjcd.h
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上传日期:2013-04-10
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- /*
- * Definitions for a Sanyo CD-ROM interface.
- *
- * Copyright (C) 1995 Vadim V. Model
- * model@cecmow.enet.dec.com
- * vadim@rbrf.msk.su
- * vadim@ipsun.ras.ru
- * Eric van der Maarel
- * H.T.M.v.d.Maarel@marin.nl
- *
- * This information is based on mcd.c from M. Harriss and sjcd102.lst from
- * E. Moenkeberg.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- #ifndef __SJCD_H__
- #define __SJCD_H__
- /*
- * Change this to set the I/O port address as default. More flexibility
- * come with setup implementation.
- */
- #define SJCD_BASE_ADDR 0x340
- /*
- * Change this to set the irq as default. Really SANYO do not use interrupts
- * at all.
- */
- #define SJCD_INTR_NR 0
- /*
- * Change this to set the dma as default value. really SANYO does not use
- * direct memory access at all.
- */
- #define SJCD_DMA_NR 0
- /*
- * Macros which allow us to find out the status of the drive.
- */
- #define SJCD_STATUS_AVAILABLE( x ) (((x)&0x02)==0)
- #define SJCD_DATA_AVAILABLE( x ) (((x)&0x01)==0)
- /*
- * Port access macro. Three ports are available: S-data port (command port),
- * status port (read only) and D-data port (read only).
- */
- #define SJCDPORT( x ) ( sjcd_base + ( x ) )
- #define SJCD_STATUS_PORT SJCDPORT( 1 )
- #define SJCD_S_DATA_PORT SJCDPORT( 0 )
- #define SJCD_COMMAND_PORT SJCDPORT( 0 )
- #define SJCD_D_DATA_PORT SJCDPORT( 2 )
- /*
- * Drive info bits. Drive info available as first (mandatory) byte of
- * command completion status.
- */
- #define SST_NOT_READY 0x10 /* no disk in the drive (???) */
- #define SST_MEDIA_CHANGED 0x20 /* disk is changed */
- #define SST_DOOR_OPENED 0x40 /* door is open */
- /* commands */
- #define SCMD_EJECT_TRAY 0xD0 /* eject tray if not locked */
- #define SCMD_LOCK_TRAY 0xD2 /* lock tray when in */
- #define SCMD_UNLOCK_TRAY 0xD4 /* unlock tray when in */
- #define SCMD_CLOSE_TRAY 0xD6 /* load tray in */
- #define SCMD_RESET 0xFA /* soft reset */
- #define SCMD_GET_STATUS 0x80
- #define SCMD_GET_VERSION 0xCC
- #define SCMD_DATA_READ 0xA0 /* are the same, depend on mode&args */
- #define SCMD_SEEK 0xA0
- #define SCMD_PLAY 0xA0
- #define SCMD_GET_QINFO 0xA8
- #define SCMD_SET_MODE 0xC4
- #define SCMD_MODE_PLAY 0xE0
- #define SCMD_MODE_COOKED (0xF8 & ~0x20)
- #define SCMD_MODE_RAW 0xF9
- #define SCMD_MODE_x20_BIT 0x20 /* What is it for ? */
- #define SCMD_SET_VOLUME 0xAE
- #define SCMD_PAUSE 0xE0
- #define SCMD_STOP 0xE0
- #define SCMD_GET_DISK_INFO 0xAA
- /*
- * Some standard arguments for SCMD_GET_DISK_INFO.
- */
- #define SCMD_GET_1_TRACK 0xA0 /* get the first track information */
- #define SCMD_GET_L_TRACK 0xA1 /* get the last track information */
- #define SCMD_GET_D_SIZE 0xA2 /* get the whole disk information */
- /*
- * Borrowed from hd.c. Allows to optimize multiple port read commands.
- */
- #define S_READ_DATA( port, buf, nr ) insb( port, buf, nr )
- /*
- * We assume that there are no audio disks with TOC length more than this
- * number (I personally have never seen disks with more than 20 fragments).
- */
- #define SJCD_MAX_TRACKS 100
- struct msf {
- unsigned char min;
- unsigned char sec;
- unsigned char frame;
- };
- struct sjcd_hw_disk_info {
- unsigned char track_control;
- unsigned char track_no;
- unsigned char x, y, z;
- union {
- unsigned char track_no;
- struct msf track_msf;
- } un;
- };
- struct sjcd_hw_qinfo {
- unsigned char track_control;
- unsigned char track_no;
- unsigned char x;
- struct msf rel;
- struct msf abs;
- };
- struct sjcd_play_msf {
- struct msf start;
- struct msf end;
- };
- struct sjcd_disk_info {
- unsigned char first;
- unsigned char last;
- struct msf disk_length;
- struct msf first_track;
- };
- struct sjcd_toc {
- unsigned char ctrl_addr;
- unsigned char track;
- unsigned char point_index;
- struct msf track_time;
- struct msf disk_time;
- };
- #if defined( SJCD_GATHER_STAT )
- struct sjcd_stat {
- int ticks;
- int tticks[ 8 ];
- int idle_ticks;
- int start_ticks;
- int mode_ticks;
- int read_ticks;
- int data_ticks;
- int stop_ticks;
- int stopping_ticks;
- };
- #endif
- #endif