drivers/scsi/a2091.h

   1 #ifndef A2091_H
   2
   3 /* $Id: a2091.h,v 1.4 1997/01/19 23:07:09 davem Exp $
   4  *
   5  * Header file for the Commodore A2091 Zorro II SCSI controller for Linux
   6  *
   7  * Written and (C) 1993, Hamish Macdonald, see a2091.c for more info
   8  *
   9  */
  10
  11 #include <linux/types.h>
  12
  13 int a2091_detect(Scsi_Host_Template *);
  14 int a2091_release(struct Scsi_Host *);
  15 const char *wd33c93_info(void);
  16 int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
  17 int wd33c93_abort(Scsi_Cmnd *);
  18 int wd33c93_reset(Scsi_Cmnd *, unsigned int);
  19
  20 #ifndef NULL
  21 #define NULL 0
  22 #endif
  23
  24 #ifndef CMD_PER_LUN
  25 #define CMD_PER_LUN 2
  26 #endif
  27
  28 #ifndef CAN_QUEUE
  29 #define CAN_QUEUE 16
  30 #endif
  31
  32 #ifdef HOSTS_C
  33
  34 extern struct proc_dir_entry proc_scsi_a2091;
  35
  36 #define A2091_SCSI {  proc_dir:            &proc_scsi_a2091, \
  37                       name:                "Commodore A2091/A590 SCSI", \
  38                       detect:              a2091_detect,    \
  39                       release:             a2091_release,   \
  40                       queuecommand:        wd33c93_queuecommand, \
  41                       abort:               wd33c93_abort,   \
  42                       reset:               wd33c93_reset,   \
  43                       can_queue:           CAN_QUEUE,       \
  44                       this_id:             7,               \
  45                       sg_tablesize:        SG_ALL,          \
  46                       cmd_per_lun:         CMD_PER_LUN,     \
  47                       use_clustering:      DISABLE_CLUSTERING }
  48 #else
  49
  50 /*
  51  * if the transfer address ANDed with this results in a non-zero
  52  * result, then we can't use DMA.
  53  */
  54 #define A2091_XFER_MASK  (0xff000001)
  55
  56 typedef struct {
  57              unsigned char      pad1[64];
  58     volatile unsigned short     ISTR;
  59     volatile unsigned short     CNTR;
  60              unsigned char      pad2[60];
  61     volatile unsigned int       WTC;
  62     volatile unsigned long      ACR;
  63              unsigned char      pad3[6];
  64     volatile unsigned short     DAWR;
  65              unsigned char      pad4;
  66     volatile unsigned char      SASR;
  67              unsigned char      pad5;
  68     volatile unsigned char      SCMD;
  69              unsigned char      pad6[76];
  70     volatile unsigned short     ST_DMA;
  71     volatile unsigned short     SP_DMA;
  72     volatile unsigned short     CINT;
  73              unsigned char      pad7[2];
  74     volatile unsigned short     FLUSH;
  75 } a2091_scsiregs;
  76
  77 #define DAWR_A2091              (3)
  78
  79 /* CNTR bits. */
  80 #define CNTR_TCEN               (1<<7)
  81 #define CNTR_PREST              (1<<6)
  82 #define CNTR_PDMD               (1<<5)
  83 #define CNTR_INTEN              (1<<4)
  84 #define CNTR_DDIR               (1<<3)
  85
  86 /* ISTR bits. */
  87 #define ISTR_INTX               (1<<8)
  88 #define ISTR_INT_F              (1<<7)
  89 #define ISTR_INTS               (1<<6)
  90 #define ISTR_E_INT              (1<<5)
  91 #define ISTR_INT_P              (1<<4)
  92 #define ISTR_UE_INT             (1<<3)
  93 #define ISTR_OE_INT             (1<<2)
  94 #define ISTR_FF_FLG             (1<<1)
  95 #define ISTR_FE_FLG             (1<<0)
  96
  97 #endif /* else def HOSTS_C */
  98
  99 #endif /* A2091_H */