diff --git a/drivers/cdrom/sjcd.h b/drivers/cdrom/sjcd.h
new file mode 100644
index 0000000..0aa5e71
--- /dev/null
+++ b/drivers/cdrom/sjcd.h
@@ -0,0 +1,181 @@
+/*
+ * 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