drivers/cdrom/sjcd.h

   1 /*
   2  * Definitions for a Sanyo CD-ROM interface.
   3  *
   4  *   Copyright (C) 1995  Vadim V. Model
   5  *                                       model@cecmow.enet.dec.com
   6  *                                       vadim@rbrf.msk.su
   7  *                                       vadim@ipsun.ras.ru
   8  *                       Eric van der Maarel
   9  *                                       H.T.M.v.d.Maarel@marin.nl
  10  *
  11  *  This information is based on mcd.c from M. Harriss and sjcd102.lst from
  12  *  E. Moenkeberg.
  13  *
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License as published by
  16  *  the Free Software Foundation; either version 2 of the License, or
  17  *  (at your option) any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful,
  20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23  *
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software
  26  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #ifndef __SJCD_H__
  30 #define __SJCD_H__
  31
  32 /*
  33  * Change this to set the I/O port address as default. More flexibility
  34  * come with setup implementation.
  35  */
  36 #define SJCD_BASE_ADDR      0x340
  37
  38 /*
  39  * Change this to set the irq as default. Really SANYO do not use interrupts
  40  * at all.
  41  */
  42 #define SJCD_INTR_NR        0
  43
  44 /*
  45  * Change this to set the dma as default value. really SANYO does not use
  46  * direct memory access at all.
  47  */
  48 #define SJCD_DMA_NR         0
  49
  50 /*
  51  * Macros which allow us to find out the status of the drive.
  52  */
  53 #define SJCD_STATUS_AVAILABLE( x ) (((x)&0x02)==0)
  54 #define SJCD_DATA_AVAILABLE( x )   (((x)&0x01)==0)
  55
  56 /*
  57  * Port access macro. Three ports are available: S-data port (command port),
  58  * status port (read only) and D-data port (read only).
  59  */
  60 #define SJCDPORT( x )       ( sjcd_base + ( x ) )
  61 #define SJCD_STATUS_PORT    SJCDPORT( 1 )
  62 #define SJCD_S_DATA_PORT    SJCDPORT( 0 )
  63 #define SJCD_COMMAND_PORT   SJCDPORT( 0 )
  64 #define SJCD_D_DATA_PORT    SJCDPORT( 2 )
  65
  66 /*
  67  * Drive info bits. Drive info available as first (mandatory) byte of
  68  * command completion status.
  69  */
  70 #define SST_NOT_READY       0x10        /* no disk in the drive (???) */
  71 #define SST_MEDIA_CHANGED   0x20        /* disk is changed */
  72 #define SST_DOOR_OPENED     0x40        /* door is open */
  73
  74 /* commands */
  75
  76 #define SCMD_EJECT_TRAY     0xD0        /* eject tray if not locked */
  77 #define SCMD_LOCK_TRAY      0xD2        /* lock tray when in */
  78 #define SCMD_UNLOCK_TRAY    0xD4        /* unlock tray when in */
  79 #define SCMD_CLOSE_TRAY     0xD6        /* load tray in */
  80
  81 #define SCMD_RESET          0xFA        /* soft reset */
  82 #define SCMD_GET_STATUS     0x80
  83 #define SCMD_GET_VERSION    0xCC
  84
  85 #define SCMD_DATA_READ      0xA0        /* are the same, depend on mode&args */
  86 #define SCMD_SEEK           0xA0
  87 #define SCMD_PLAY           0xA0
  88
  89 #define SCMD_GET_QINFO      0xA8
  90
  91 #define SCMD_SET_MODE       0xC4
  92 #define SCMD_MODE_PLAY      0xE0
  93 #define SCMD_MODE_COOKED    (0xF8 & ~0x20)
  94 #define SCMD_MODE_RAW       0xF9
  95 #define SCMD_MODE_x20_BIT   0x20        /* What is it for ? */
  96
  97 #define SCMD_SET_VOLUME     0xAE
  98 #define SCMD_PAUSE          0xE0
  99 #define SCMD_STOP           0xE0
 100
 101 #define SCMD_GET_DISK_INFO  0xAA
 102
 103 /*
 104  * Some standard arguments for SCMD_GET_DISK_INFO.
 105  */
 106 #define SCMD_GET_1_TRACK    0xA0    /* get the first track information */
 107 #define SCMD_GET_L_TRACK    0xA1    /* get the last track information */
 108 #define SCMD_GET_D_SIZE     0xA2    /* get the whole disk information */
 109
 110 /*
 111  * Borrowed from hd.c. Allows to optimize multiple port read commands.
 112  */
 113 #define S_READ_DATA( port, buf, nr )      insb( port, buf, nr )
 114
 115 /*
 116  * We assume that there are no audio disks with TOC length more than this
 117  * number (I personally have never seen disks with more than 20 fragments).
 118  */
 119 #define SJCD_MAX_TRACKS         100
 120
 121 struct msf {
 122   unsigned char   min;
 123   unsigned char   sec;
 124   unsigned char   frame;
 125 };
 126
 127 struct sjcd_hw_disk_info {
 128   unsigned char track_control;
 129   unsigned char track_no;
 130   unsigned char x, y, z;
 131   union {
 132     unsigned char track_no;
 133     struct msf track_msf;
 134   } un;
 135 };
 136
 137 struct sjcd_hw_qinfo {
 138   unsigned char track_control;
 139   unsigned char track_no;
 140   unsigned char x;
 141   struct msf rel;
 142   struct msf abs;
 143 };
 144
 145 struct sjcd_play_msf {
 146   struct msf  start;
 147   struct msf  end;
 148 };
 149
 150 struct sjcd_disk_info {
 151   unsigned char   first;
 152   unsigned char   last;
 153   struct msf      disk_length;
 154   struct msf      first_track;
 155 };
 156
 157 struct sjcd_toc {
 158   unsigned char   ctrl_addr;
 159   unsigned char   track;
 160   unsigned char   point_index;
 161   struct msf      track_time;
 162   struct msf      disk_time;
 163 };
 164
 165 #if defined( SJCD_GATHER_STAT )
 166
 167 struct sjcd_stat {
 168   int ticks;
 169   int tticks[ 8 ];
 170   int idle_ticks;
 171   int start_ticks;
 172   int mode_ticks;
 173   int read_ticks;
 174   int data_ticks;
 175   int stop_ticks;
 176   int stopping_ticks;
 177 };
 178
 179 #endif
 180
 181 #endif