drivers/scsi/a2091.h

   1 #ifndef A2091_H
   2 #define A2091_H
   3
   4 /* $Id: a2091.h,v 1.4 1997/01/19 23:07:09 davem Exp $
   5  *
   6  * Header file for the Commodore A2091 Zorro II SCSI controller for Linux
   7  *
   8  * Written and (C) 1993, Hamish Macdonald, see a2091.c for more info
   9  *
  10  */
  11
  12 #include <linux/types.h>
  13
  14 int a2091_detect(Scsi_Host_Template *);
  15 int a2091_release(struct Scsi_Host *);
  16 const char *wd33c93_info(void);
  17 int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
  18 int wd33c93_abort(Scsi_Cmnd *);
  19 int wd33c93_reset(Scsi_Cmnd *, unsigned int);
  20
  21 #ifndef NULL
  22 #define NULL 0
  23 #endif
  24
  25 #ifndef CMD_PER_LUN
  26 #define CMD_PER_LUN 2
  27 #endif
  28
  29 #ifndef CAN_QUEUE
  30 #define CAN_QUEUE 16
  31 #endif
  32
  33 #define A2091_SCSI {  proc_name:           "A2901", \
  34                       name:                "Commodore A2091/A590 SCSI", \
  35                       detect:              a2091_detect,    \
  36                       release:             a2091_release,   \
  37                       queuecommand:        wd33c93_queuecommand, \
  38                       abort:               wd33c93_abort,   \
  39                       reset:               wd33c93_reset,   \
  40                       can_queue:           CAN_QUEUE,       \
  41                       this_id:             7,               \
  42                       sg_tablesize:        SG_ALL,          \
  43                       cmd_per_lun:         CMD_PER_LUN,     \
  44                       use_clustering:      DISABLE_CLUSTERING }
  45
  46 /*
  47  * if the transfer address ANDed with this results in a non-zero
  48  * result, then we can't use DMA.
  49  */
  50 #define A2091_XFER_MASK  (0xff000001)
  51
  52 typedef struct {
  53              unsigned char      pad1[64];
  54     volatile unsigned short     ISTR;
  55     volatile unsigned short     CNTR;
  56              unsigned char      pad2[60];
  57     volatile unsigned int       WTC;
  58     volatile unsigned long      ACR;
  59              unsigned char      pad3[6];
  60     volatile unsigned short     DAWR;
  61              unsigned char      pad4;
  62     volatile unsigned char      SASR;
  63              unsigned char      pad5;
  64     volatile unsigned char      SCMD;
  65              unsigned char      pad6[76];
  66     volatile unsigned short     ST_DMA;
  67     volatile unsigned short     SP_DMA;
  68     volatile unsigned short     CINT;
  69              unsigned char      pad7[2];
  70     volatile unsigned short     FLUSH;
  71 } a2091_scsiregs;
  72
  73 #define DAWR_A2091              (3)
  74
  75 /* CNTR bits. */
  76 #define CNTR_TCEN               (1<<7)
  77 #define CNTR_PREST              (1<<6)
  78 #define CNTR_PDMD               (1<<5)
  79 #define CNTR_INTEN              (1<<4)
  80 #define CNTR_DDIR               (1<<3)
  81
  82 /* ISTR bits. */
  83 #define ISTR_INTX               (1<<8)
  84 #define ISTR_INT_F              (1<<7)
  85 #define ISTR_INTS               (1<<6)
  86 #define ISTR_E_INT              (1<<5)
  87 #define ISTR_INT_P              (1<<4)
  88 #define ISTR_UE_INT             (1<<3)
  89 #define ISTR_OE_INT             (1<<2)
  90 #define ISTR_FF_FLG             (1<<1)
  91 #define ISTR_FE_FLG             (1<<0)
  92
  93 #endif /* A2091_H */