i386/linux/linux-2.3.21/drivers/cdrom/mcd.h

   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 /* Increase this if you get lots of timeouts */
  25 #define MCD_STATUS_DELAY        1000
  26
  27 /* number of times to retry a command before giving up */
  28 #define MCD_RETRY_ATTEMPTS      10
  29
  30 /* port access macro */
  31 #define MCDPORT(x)              (mcd_port + (x))
  32
  33 /* How many sectors to read at 1x when an error at 2x speed occurs. */
  34 /* You can change this to anything from 2 to 32767, but 30 seems to */
  35 /* work best for me.  I have found that when the drive has problems */
  36 /* reading one sector, it will have troubles reading the next few.  */
  37 #define SINGLE_HOLD_SECTORS 30
  38
  39 #define MCMD_2X_READ 0xC1       /* Double Speed Read DON'T TOUCH! */
  40
  41 /* status bits */
  42
  43 #define MST_CMD_CHECK           0x01            /* command error */
  44 #define MST_BUSY                0x02            /* now playing */
  45 #define MST_READ_ERR            0x04            /* read error */
  46 #define MST_DSK_TYPE            0x08
  47 #define MST_SERVO_CHECK         0x10
  48 #define MST_DSK_CHG             0x20            /* disk removed or changed */
  49 #define MST_READY               0x40            /* disk in the drive */
  50 #define MST_DOOR_OPEN           0x80            /* door is open */
  51
  52 /* flag bits */
  53
  54 #define MFL_DATA                0x02            /* data available */
  55 #define MFL_STATUS              0x04            /* status available */
  56
  57 /* commands */
  58
  59 #define MCMD_GET_DISK_INFO      0x10            /* read info from disk */
  60 #define MCMD_GET_Q_CHANNEL      0x20            /* read info from q channel */
  61 #define MCMD_GET_STATUS         0x40
  62 #define MCMD_SET_MODE           0x50
  63 #define MCMD_SOFT_RESET         0x60
  64 #define MCMD_STOP               0x70            /* stop play */
  65 #define MCMD_CONFIG_DRIVE       0x90
  66 #define MCMD_SET_VOLUME         0xAE            /* set audio level */
  67 #define MCMD_PLAY_READ          0xC0            /* play or read data */
  68 #define MCMD_GET_VERSION        0xDC
  69 #define MCMD_EJECT              0xF6            /* eject (FX drive) */
  70
  71 /* borrowed from hd.c */
  72
  73 #define READ_DATA(port, buf, nr) \
  74 insb(port, buf, nr)
  75
  76 #define SET_TIMER(func, jifs) \
  77         ((timer_table[MCD_TIMER].expires = jiffies + jifs), \
  78         (timer_table[MCD_TIMER].fn = func), \
  79         (timer_active |= 1<<MCD_TIMER))
  80
  81 #define CLEAR_TIMER             timer_active &= ~(1<<MCD_TIMER)
  82
  83 #define MAX_TRACKS              104
  84
  85 struct msf {
  86         unsigned char   min;
  87         unsigned char   sec;
  88         unsigned char   frame;
  89 };
  90
  91 struct mcd_Play_msf {
  92         struct msf      start;
  93         struct msf      end;
  94 };
  95
  96 struct mcd_DiskInfo {
  97         unsigned char   first;
  98         unsigned char   last;
  99         struct msf      diskLength;
 100         struct msf      firstTrack;
 101 };
 102
 103 struct mcd_Toc {
 104         unsigned char   ctrl_addr;
 105         unsigned char   track;
 106         unsigned char   pointIndex;
 107         struct msf      trackTime;
 108         struct msf      diskTime;
 109 };