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 int gvp11_detect(struct scsi_host_template *);
  15 int gvp11_release(struct Scsi_Host *);
  16
  17 #ifndef CMD_PER_LUN
  18 #define CMD_PER_LUN 2
  19 #endif
  20
  21 #ifndef CAN_QUEUE
  22 #define CAN_QUEUE 16
  23 #endif
  24
  25 #ifndef HOSTS_C
  26
  27 /*
  28  * if the transfer address ANDed with this results in a non-zero
  29  * result, then we can't use DMA.
  30  */
  31 #define GVP11_XFER_MASK  (0xff000001)
  32
  33 typedef struct {
  34              unsigned char      pad1[64];
  35     volatile unsigned short     CNTR;
  36              unsigned char      pad2[31];
  37     volatile unsigned char      SASR;
  38              unsigned char      pad3;
  39     volatile unsigned char      SCMD;
  40              unsigned char      pad4[4];
  41     volatile unsigned short     BANK;
  42              unsigned char      pad5[6];
  43     volatile unsigned long      ACR;
  44     volatile unsigned short     secret1; /* store 0 here */
  45     volatile unsigned short     ST_DMA;
  46     volatile unsigned short     SP_DMA;
  47     volatile unsigned short     secret2; /* store 1 here */
  48     volatile unsigned short     secret3; /* store 15 here */
  49 } gvp11_scsiregs;
  50
  51 /* bits in CNTR */
  52 #define GVP11_DMAC_BUSY         (1<<0)
  53 #define GVP11_DMAC_INT_PENDING  (1<<1)
  54 #define GVP11_DMAC_INT_ENABLE   (1<<3)
  55 #define GVP11_DMAC_DIR_WRITE    (1<<4)
  56
  57 #endif /* else def HOSTS_C */
  58
  59 #endif /* GVP11_H */