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
  29 struct 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 */