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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