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