drivers/scsi/gvp11.h

   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
  28 struct 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 */