diff --git a/include/scsi.h b/include/scsi.h
new file mode 100644
index 0000000..8929318
--- /dev/null
+++ b/include/scsi.h
@@ -0,0 +1,215 @@
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+ #ifndef _SCSI_H
+ #define _SCSI_H
+
+typedef struct SCSI_cmd_block{
+	unsigned char		cmd[16];					/* command				   */
+	unsigned char		sense_buf[64];		/* for request sense */
+	unsigned char		status;						/* SCSI Status			 */
+	unsigned char		target;						/* Target ID				 */
+	unsigned char		lun;							/* Target LUN        */
+	unsigned char		cmdlen;						/* command len				*/
+	unsigned long		datalen;					/* Total data length	*/
+	unsigned char	*	pdata; 						/* pointer to data		*/
+	unsigned char		msgout[12];				/* Messge out buffer (NOT USED) */
+	unsigned char		msgin[12];				/* Message in buffer	*/
+	unsigned char		sensecmdlen;			/* Sense command len	*/
+	unsigned long		sensedatalen;			/* Sense data len			*/
+	unsigned char		sensecmd[6];			/* Sense command			*/
+	unsigned long		contr_stat;				/* Controller Status	*/
+	unsigned long		trans_bytes;			/* tranfered bytes		*/
+
+	unsigned int		priv;
+}ccb;
+
+/*-----------------------------------------------------------
+**
+**	SCSI  constants.
+**
+**-----------------------------------------------------------
+*/
+
+/*
+**	Messages
+*/
+
+#define	M_COMPLETE	(0x00)
+#define	M_EXTENDED	(0x01)
+#define	M_SAVE_DP	(0x02)
+#define	M_RESTORE_DP	(0x03)
+#define	M_DISCONNECT	(0x04)
+#define	M_ID_ERROR	(0x05)
+#define	M_ABORT		(0x06)
+#define	M_REJECT	(0x07)
+#define	M_NOOP		(0x08)
+#define	M_PARITY	(0x09)
+#define	M_LCOMPLETE	(0x0a)
+#define	M_FCOMPLETE	(0x0b)
+#define	M_RESET		(0x0c)
+#define	M_ABORT_TAG	(0x0d)
+#define	M_CLEAR_QUEUE	(0x0e)
+#define	M_INIT_REC	(0x0f)
+#define	M_REL_REC	(0x10)
+#define	M_TERMINATE	(0x11)
+#define	M_SIMPLE_TAG	(0x20)
+#define	M_HEAD_TAG	(0x21)
+#define	M_ORDERED_TAG	(0x22)
+#define	M_IGN_RESIDUE	(0x23)
+#define	M_IDENTIFY   	(0x80)
+
+#define	M_X_MODIFY_DP	(0x00)
+#define	M_X_SYNC_REQ	(0x01)
+#define	M_X_WIDE_REQ	(0x03)
+#define	M_X_PPR_REQ	(0x04)
+
+
+/*
+**	Status
+*/
+
+#define	S_GOOD		(0x00)
+#define	S_CHECK_COND	(0x02)
+#define	S_COND_MET	(0x04)
+#define	S_BUSY		(0x08)
+#define	S_INT		(0x10)
+#define	S_INT_COND_MET	(0x14)
+#define	S_CONFLICT	(0x18)
+#define	S_TERMINATED	(0x20)
+#define	S_QUEUE_FULL	(0x28)
+#define	S_ILLEGAL	(0xff)
+#define	S_SENSE		(0x80)
+
+/*
+ * Sense_keys
+ */
+
+#define SENSE_NO_SENSE				0x0
+#define SENSE_RECOVERED_ERROR	0x1
+#define SENSE_NOT_READY				0x2
+#define SENSE_MEDIUM_ERROR		0x3
+#define SENSE_HARDWARE_ERROR	0x4
+#define SENSE_ILLEGAL_REQUEST	0x5
+#define SENSE_UNIT_ATTENTION	0x6
+#define SENSE_DATA_PROTECT		0x7
+#define SENSE_BLANK_CHECK			0x8
+#define SENSE_VENDOR_SPECIFIC	0x9
+#define SENSE_COPY_ABORTED		0xA
+#define SENSE_ABORTED_COMMAND	0xB
+#define SENSE_VOLUME_OVERFLOW	0xD
+#define SENSE_MISCOMPARE			0xE
+
+
+#define SCSI_CHANGE_DEF	0x40		/* Change Definition (Optional) */
+#define SCSI_COMPARE		0x39		/* Compare (O) */
+#define SCSI_COPY			0x18		/* Copy (O) */
+#define SCSI_COP_VERIFY	0x3A		/* Copy and Verify (O) */
+#define SCSI_INQUIRY		0x12		/* Inquiry (MANDATORY) */
+#define SCSI_LOG_SELECT	0x4C		/* Log Select (O) */
+#define SCSI_LOG_SENSE	0x4D		/* Log Sense (O) */
+#define SCSI_MODE_SEL6	0x15		/* Mode Select 6-byte (Device Specific) */
+#define SCSI_MODE_SEL10	0x55		/* Mode Select 10-byte (Device Specific) */
+#define SCSI_MODE_SEN6	0x1A		/* Mode Sense 6-byte (Device Specific) */
+#define SCSI_MODE_SEN10	0x5A		/* Mode Sense 10-byte (Device Specific) */
+#define SCSI_READ_BUFF	0x3C		/* Read Buffer (O) */
+#define SCSI_REQ_SENSE	0x03		/* Request Sense (MANDATORY) */
+#define SCSI_SEND_DIAG	0x1D		/* Send Diagnostic (O) */
+#define SCSI_TST_U_RDY	0x00		/* Test Unit Ready (MANDATORY) */
+#define SCSI_WRITE_BUFF	0x3B		/* Write Buffer (O) */
+/***************************************************************************
+ *			  %%% Commands Unique to Direct Access Devices %%%
+ ***************************************************************************/
+#define SCSI_COMPARE		0x39		/* Compare (O) */
+#define SCSI_FORMAT		0x04		/* Format Unit (MANDATORY) */
+#define SCSI_LCK_UN_CAC	0x36		/* Lock Unlock Cache (O) */
+#define SCSI_PREFETCH	0x34		/* Prefetch (O) */
+#define SCSI_MED_REMOVL	0x1E		/* Prevent/Allow medium Removal (O) */
+#define SCSI_READ6		0x08		/* Read 6-byte (MANDATORY) */
+#define SCSI_READ10		0x28		/* Read 10-byte (MANDATORY) */
+#define SCSI_RD_CAPAC	0x25		/* Read Capacity (MANDATORY) */
+#define SCSI_RD_DEFECT	0x37		/* Read Defect Data (O) */
+#define SCSI_READ_LONG	0x3E		/* Read Long (O) */
+#define SCSI_REASS_BLK	0x07		/* Reassign Blocks (O) */
+#define SCSI_RCV_DIAG	0x1C		/* Receive Diagnostic Results (O) */
+#define SCSI_RELEASE	0x17		/* Release Unit (MANDATORY) */
+#define SCSI_REZERO		0x01		/* Rezero Unit (O) */
+#define SCSI_SRCH_DAT_E	0x31		/* Search Data Equal (O) */
+#define SCSI_SRCH_DAT_H	0x30		/* Search Data High (O) */
+#define SCSI_SRCH_DAT_L	0x32		/* Search Data Low (O) */
+#define SCSI_SEEK6		0x0B		/* Seek 6-Byte (O) */
+#define SCSI_SEEK10		0x2B		/* Seek 10-Byte (O) */
+#define SCSI_SEND_DIAG	0x1D		/* Send Diagnostics (MANDATORY) */
+#define SCSI_SET_LIMIT	0x33		/* Set Limits (O) */
+#define SCSI_START_STP	0x1B		/* Start/Stop Unit (O) */
+#define SCSI_SYNC_CACHE	0x35		/* Synchronize Cache (O) */
+#define SCSI_VERIFY		0x2F		/* Verify (O) */
+#define SCSI_WRITE6		0x0A		/* Write 6-Byte (MANDATORY) */
+#define SCSI_WRITE10	0x2A		/* Write 10-Byte (MANDATORY) */
+#define SCSI_WRT_VERIFY	0x2E		/* Write and Verify (O) */
+#define SCSI_WRITE_LONG	0x3F		/* Write Long (O) */
+#define SCSI_WRITE_SAME	0x41		/* Write Same (O) */
+
+
+/****************************************************************************
+ * decleration of functions which have to reside in the LowLevel Part Driver
+ */
+
+void scsi_print_error(ccb *pccb);
+int scsi_exec(ccb *pccb);
+void scsi_bus_reset(void);
+void scsi_low_level_init(int busdevfunc);
+
+
+/***************************************************************************
+ * functions residing inside cmd_scsi.c
+ */
+void scsi_init(void);
+
+
+
+#define SCSI_IDENTIFY					0xC0  /* not used */
+
+/* Hardware errors  */
+#define SCSI_SEL_TIME_OUT			 0x00000101	 /* Selection time out */
+#define SCSI_HNS_TIME_OUT			 0x00000102  /* Handshake */
+#define SCSI_MA_TIME_OUT	 		 0x00000103  /* Phase error */
+#define SCSI_UNEXP_DIS				 0x00000104  /* unexpected disconnect */
+
+#define SCSI_INT_STATE				 0x00010000  /* unknown Interrupt number is stored in 16 LSB */
+
+
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+
+
+
+
+#endif /* _SCSI_H */
+