LXR linux/drivers/scsi/gvp11.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef GVP11_H
   3
   4/* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $
   5 *
   6 * Header file for the GVP Series II SCSI controller for Linux
   7 *
   8 * Written and (C) 1993, Ralf Baechle, see gvp11.c for more info
   9 * based on a2091.h (C) 1993 by Hamish Macdonald
  10 *
  11 */
  12
  13#include <linux/types.h>
  14
  15#ifndef CMD_PER_LUN
  16#define CMD_PER_LUN             2
  17#endif
  18
  19#ifndef CAN_QUEUE
  20#define CAN_QUEUE               16
  21#endif
  22
  23/*
  24 * if the transfer address ANDed with this results in a non-zero
  25 * result, then we can't use DMA.
  26 */
  27#define GVP11_XFER_MASK         (0xff000001)
  28
  29struct gvp11_scsiregs {
  30                 unsigned char  pad1[64];
  31        volatile unsigned short CNTR;
  32                 unsigned char  pad2[31];
  33        volatile unsigned char  SASR;
  34                 unsigned char  pad3;
  35        volatile unsigned char  SCMD;
  36                 unsigned char  pad4[4];
  37        volatile unsigned short BANK;
  38                 unsigned char  pad5[6];
  39        volatile unsigned long  ACR;
  40        volatile unsigned short secret1; /* store 0 here */
  41        volatile unsigned short ST_DMA;
  42        volatile unsigned short SP_DMA;
  43        volatile unsigned short secret2; /* store 1 here */
  44        volatile unsigned short secret3; /* store 15 here */
  45};
  46
  47/* bits in CNTR */
  48#define GVP11_DMAC_BUSY         (1<<0)
  49#define GVP11_DMAC_INT_PENDING  (1<<1)
  50#define GVP11_DMAC_INT_ENABLE   (1<<3)
  51#define GVP11_DMAC_DIR_WRITE    (1<<4)
  52
  53#endif /* GVP11_H */
  54