Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#ifndef A2091_H

#define A2091_H

/* $Id: a2091.h,v 1.4 1997/01/19 23:07:09 davem Exp $

 *

 * Header file for the Commodore A2091 Zorro II SCSI controller for Linux

 *

 * Written and (C) 1993, Hamish Macdonald, see a2091.c for more info

 *

 */

#include <linux/types.h>

int a2091_detect(struct scsi_host_template *);

int a2091_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 A2091_XFER_MASK  (0xff000001)

typedef struct {

             unsigned char      pad1[64];

    volatile unsigned short     ISTR;

    volatile unsigned short     CNTR;

             unsigned char      pad2[60];

    volatile unsigned int       WTC;

    volatile unsigned long      ACR;

             unsigned char      pad3[6];

    volatile unsigned short     DAWR;

             unsigned char      pad4;

    volatile unsigned char      SASR;

             unsigned char      pad5;

    volatile unsigned char      SCMD;

             unsigned char      pad6[76];

    volatile unsigned short     ST_DMA;

    volatile unsigned short     SP_DMA;

    volatile unsigned short     CINT;

             unsigned char      pad7[2];

    volatile unsigned short     FLUSH;

} a2091_scsiregs;

#define DAWR_A2091              (3)

/* CNTR bits. */

#define CNTR_TCEN               (1<<7)

#define CNTR_PREST              (1<<6)

#define CNTR_PDMD               (1<<5)

#define CNTR_INTEN              (1<<4)

#define CNTR_DDIR               (1<<3)

/* 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 /* A2091_H */