drivers/scsi/a3000.h

   1 #ifndef A3000_H
   2 #define A3000_H
   3
   4 /* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $
   5  *
   6  * Header file for the Amiga 3000 built-in SCSI controller for Linux
   7  *
   8  * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
   9  *
  10  */
  11
  12 #include <linux/types.h>
  13
  14 int a3000_detect(Scsi_Host_Template *);
  15 int a3000_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 _A3000_SCSI { proc_name:           "A3000",                     \
  34                       proc_info:           NULL,                        \
  35                       name:                "Amiga 3000 built-in SCSI",  \
  36                       detect:              a3000_detect,                \
  37                       release:             a3000_release,               \
  38                       queuecommand:        wd33c93_queuecommand,        \
  39                       abort:               wd33c93_abort,               \
  40                       reset:               wd33c93_reset,               \
  41                       can_queue:           CAN_QUEUE,                   \
  42                       this_id:             7,                           \
  43                       sg_tablesize:        SG_ALL,                      \
  44                       cmd_per_lun:         CMD_PER_LUN,                 \
  45                       use_clustering:      ENABLE_CLUSTERING }
  46
  47 /*
  48  * if the transfer address ANDed with this results in a non-zero
  49  * result, then we can't use DMA.
  50  */
  51 #define A3000_XFER_MASK  (0x00000003)
  52
  53 typedef struct {
  54              unsigned char      pad1[2];
  55     volatile unsigned short     DAWR;
  56     volatile unsigned int       WTC;
  57              unsigned char      pad2[2];
  58     volatile unsigned short     CNTR;
  59     volatile unsigned long      ACR;
  60              unsigned char      pad3[2];
  61     volatile unsigned short     ST_DMA;
  62              unsigned char      pad4[2];
  63     volatile unsigned short     FLUSH;
  64              unsigned char      pad5[2];
  65     volatile unsigned short     CINT;
  66              unsigned char      pad6[2];
  67     volatile unsigned short     ISTR;
  68              unsigned char      pad7[30];
  69     volatile unsigned short     SP_DMA;
  70              unsigned char      pad8;
  71     volatile unsigned char      SASR;
  72              unsigned char      pad9;
  73     volatile unsigned char      SCMD;
  74 } a3000_scsiregs;
  75
  76 #define DAWR_A3000              (3)
  77
  78 /* CNTR bits. */
  79 #define CNTR_TCEN               (1<<5)
  80 #define CNTR_PREST              (1<<4)
  81 #define CNTR_PDMD               (1<<3)
  82 #define CNTR_INTEN              (1<<2)
  83 #define CNTR_DDIR               (1<<1)
  84 #define CNTR_IO_DX              (1<<0)
  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 /* A3000_H */