/* SPDX-License-Identifier: GPL-2.0 */
#ifndef GVP11_H

/* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $
 *
 * Header file for the GVP Series II SCSI controller for Linux
 *
 * Written and (C) 1993, Ralf Baechle, see gvp11.c for more info
 * based on a2091.h (C) 1993 by Hamish Macdonald
 *
 */

#include <linux/types.h>

#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 GVP11_XFER_MASK         (0xff000001)

struct gvp11_scsiregs {
                 unsigned char  pad1[64];
        volatile unsigned short CNTR;
                 unsigned char  pad2[31];
        volatile unsigned char  SASR;
                 unsigned char  pad3;
        volatile unsigned char  SCMD;
                 unsigned char  pad4[4];
        volatile unsigned short BANK;
                 unsigned char  pad5[6];
        volatile unsigned long  ACR;
        volatile unsigned short secret1; /* store 0 here */
        volatile unsigned short ST_DMA;
        volatile unsigned short SP_DMA;
        volatile unsigned short secret2; /* store 1 here */
        volatile unsigned short secret3; /* store 15 here */
};

/* bits in CNTR */
#define GVP11_DMAC_BUSY         (1<<0)
#define GVP11_DMAC_INT_PENDING  (1<<1)
#define GVP11_DMAC_INT_ENABLE   (1<<3)
#define GVP11_DMAC_DIR_WRITE    (1<<4)

#endif /* GVP11_H */