root/include/linux/mcd.h

/* */

INCLUDED FROM

   1 /*
   2  * Definitions for a Mitsumi CD-ROM interface
   3  *
   4  *      Copyright (C) 1992  Martin Harriss
   5  *
   6  *      martin@bdsi.com
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23 
  24 /* *** change this to set the I/O port address */
  25 #define MCD_BASE_ADDR           0x300
  26 
  27 /* *** change this to set the interrupt number */
  28 #define MCD_INTR_NR             11
  29 
  30 /* Increase this if you get lots of timeouts */
  31 #define MCD_STATUS_DELAY        100
  32 
  33 /* number of times to retry a command before giving up */
  34 #define MCD_RETRY_ATTEMPTS      5
  35 
  36 /* port access macro */
  37 #define MCDPORT(x)              (mcd_port + (x))
  38 
  39 /* status bits */
  40 
  41 #define MST_CMD_CHECK           0x01            /* command error */
  42 #define MST_BUSY                0x02            /* now playing */
  43 #define MST_READ_ERR            0x04            /* read error */
  44 #define MST_DSK_TYPE            0x08
  45 #define MST_SERVO_CHECK         0x10
  46 #define MST_DSK_CHG             0x20            /* disk removed or changed */
  47 #define MST_READY               0x40            /* disk in the drive */
  48 #define MST_DOOR_OPEN           0x80            /* door is open */
  49 
  50 /* flag bits */
  51 
  52 #define MFL_DATA                0x02            /* data available */
  53 #define MFL_STATUS              0x04            /* status available */
  54 
  55 /* commands */
  56 
  57 #define MCMD_GET_DISK_INFO      0x10            /* read info from disk */
  58 #define MCMD_GET_Q_CHANNEL      0x20            /* read info from q channel */
  59 #define MCMD_GET_STATUS         0x40
  60 #define MCMD_SET_MODE           0x50
  61 #define MCMD_SOFT_RESET         0x60
  62 #define MCMD_STOP               0x70            /* stop play */
  63 #define MCMD_CONFIG_DRIVE       0x90
  64 #define MCMD_SET_VOLUME         0xAE            /* set audio level */
  65 #define MCMD_PLAY_READ          0xC0            /* play or read data */
  66 #define MCMD_GET_VERSION        0xDC
  67 #define MCMD_EJECT              0xF6            /* eject (FX drive) */
  68 
  69 /* borrowed from hd.c */
  70 
  71 #define READ_DATA(port, buf, nr) \
  72 insb(port, buf, nr)
  73 
  74 #define SET_TIMER(func, jifs) \
  75         ((timer_table[MCD_TIMER].expires = jiffies + jifs), \
  76         (timer_table[MCD_TIMER].fn = func), \
  77         (timer_active |= 1<<MCD_TIMER))
  78 
  79 #define CLEAR_TIMER             timer_active &= ~(1<<MCD_TIMER)
  80 
  81 #define MAX_TRACKS              104
  82 
  83 struct msf {
  84         unsigned char   min;
  85         unsigned char   sec;
  86         unsigned char   frame;
  87 };
  88 
  89 struct mcd_Play_msf {
  90         struct msf      start;
  91         struct msf      end;
  92 };
  93 
  94 struct mcd_DiskInfo {
  95         unsigned char   first;
  96         unsigned char   last;
  97         struct msf      diskLength;
  98         struct msf      firstTrack;
  99 };
 100 
 101 struct mcd_Toc {
 102         unsigned char   ctrl_addr;
 103         unsigned char   track;
 104         unsigned char   pointIndex;
 105         struct msf      trackTime;
 106         struct msf      diskTime;
 107 };

/* */