drivers/scsi/a3000.h

   1 #ifndef A3000_H
   2
   3 /* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $
   4  *
   5  * Header file for the Amiga 3000 built-in SCSI controller for Linux
   6  *
   7  * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
   8  *
   9  */
  10
  11 #include <linux/types.h>
  12
  13 int a3000_detect(Scsi_Host_Template *);
  14 int a3000_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_a3000;
  35
  36 #define A3000_SCSI {  proc_dir:            &proc_scsi_a3000,            \
  37                       proc_info:           NULL,                        \
  38                       name:                "Amiga 3000 built-in SCSI",  \
  39                       detect:              a3000_detect,                \
  40                       release:             a3000_release,               \
  41                       queuecommand:        wd33c93_queuecommand,        \
  42                       abort:               wd33c93_abort,               \
  43                       reset:               wd33c93_reset,               \
  44                       can_queue:           CAN_QUEUE,                   \
  45                       this_id:             7,                           \
  46                       sg_tablesize:        SG_ALL,                      \
  47                       cmd_per_lun:         CMD_PER_LUN,                 \
  48                       use_clustering:      ENABLE_CLUSTERING }
  49 #else
  50
  51 /*
  52  * if the transfer address ANDed with this results in a non-zero
  53  * result, then we can't use DMA.
  54  */
  55 #define A3000_XFER_MASK  (0x00000003)
  56
  57 typedef struct {
  58              unsigned char      pad1[2];
  59     volatile unsigned short     DAWR;
  60     volatile unsigned int       WTC;
  61              unsigned char      pad2[2];
  62     volatile unsigned short     CNTR;
  63     volatile unsigned long      ACR;
  64              unsigned char      pad3[2];
  65     volatile unsigned short     ST_DMA;
  66              unsigned char      pad4[2];
  67     volatile unsigned short     FLUSH;
  68              unsigned char      pad5[2];
  69     volatile unsigned short     CINT;
  70              unsigned char      pad6[2];
  71     volatile unsigned short     ISTR;
  72              unsigned char      pad7[30];
  73     volatile unsigned short     SP_DMA;
  74              unsigned char      pad8;
  75     volatile unsigned char      SASR;
  76              unsigned char      pad9;
  77     volatile unsigned char      SCMD;
  78 } a3000_scsiregs;
  79
  80 #define DAWR_A3000              (3)
  81
  82 /* CNTR bits. */
  83 #define CNTR_TCEN               (1<<5)
  84 #define CNTR_PREST              (1<<4)
  85 #define CNTR_PDMD               (1<<3)
  86 #define CNTR_INTEN              (1<<2)
  87 #define CNTR_DDIR               (1<<1)
  88 #define CNTR_IO_DX              (1<<0)
  89
  90 /* ISTR bits. */
  91 #define ISTR_INTX               (1<<8)
  92 #define ISTR_INT_F              (1<<7)
  93 #define ISTR_INTS               (1<<6)
  94 #define ISTR_E_INT              (1<<5)
  95 #define ISTR_INT_P              (1<<4)
  96 #define ISTR_UE_INT             (1<<3)
  97 #define ISTR_OE_INT             (1<<2)
  98 #define ISTR_FF_FLG             (1<<1)
  99 #define ISTR_FE_FLG             (1<<0)
 100
 101 #endif /* else def HOSTS_C */
 102
 103 #endif /* A3000_H */