text: #ifndef A3000_H
  #define A3000_H
  
  /* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $
   *
   * Header file for the Amiga 3000 built-in SCSI controller for Linux
   *
   * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
   *
   */
  
  #include <linux/types.h>
  
  int a3000_detect(struct scsi_host_template *);
  int a3000_release(struct Scsi_Host *);
  
  #ifndef CMD_PER_LUN
  #define CMD_PER_LUN 2
  #endif
  
  #ifndef CAN_QUEUE
  #define CAN_QUEUE 16
  #endif
  
  /*
   * if the transfer address ANDed with this results in a non-zero
   * result, then we can't use DMA.
   */
  #define A3000_XFER_MASK  (0x00000003)
  
  typedef struct {
               unsigned char      pad1[2];
      volatile unsigned short     DAWR;
      volatile unsigned int       WTC;
               unsigned char      pad2[2];
      volatile unsigned short     CNTR;
      volatile unsigned long      ACR;
               unsigned char      pad3[2];
      volatile unsigned short     ST_DMA;
               unsigned char      pad4[2];
      volatile unsigned short     FLUSH;
               unsigned char      pad5[2];
      volatile unsigned short     CINT;
               unsigned char      pad6[2];
      volatile unsigned short     ISTR;
  	     unsigned char      pad7[30];
      volatile unsigned short     SP_DMA;
               unsigned char      pad8;
      volatile unsigned char      SASR;
               unsigned char      pad9;
      volatile unsigned char      SCMD;
  } a3000_scsiregs;
  
  #define DAWR_A3000		(3)
  
  /* CNTR bits. */
  #define CNTR_TCEN		(1<<5)
  #define CNTR_PREST		(1<<4)
  #define CNTR_PDMD		(1<<3)
  #define CNTR_INTEN		(1<<2)
  #define CNTR_DDIR		(1<<1)
  #define CNTR_IO_DX		(1<<0)
  
  /* ISTR bits. */
  #define ISTR_INTX		(1<<8)
  #define ISTR_INT_F		(1<<7)
  #define ISTR_INTS		(1<<6)
  #define ISTR_E_INT		(1<<5)
  #define ISTR_INT_P		(1<<4)
  #define ISTR_UE_INT		(1<<3)
  #define ISTR_OE_INT		(1<<2)
  #define ISTR_FF_FLG		(1<<1)
  #define ISTR_FE_FLG		(1<<0)
  
  #endif /* A3000_H */
  