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(struct 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 CMD_PER_LUN
  22 #define CMD_PER_LUN 2
  23 #endif
  24
  25 #ifndef CAN_QUEUE
  26 #define CAN_QUEUE 16
  27 #endif
  28
  29 /*
  30  * if the transfer address ANDed with this results in a non-zero
  31  * result, then we can't use DMA.
  32  */
  33 #define A3000_XFER_MASK  (0x00000003)
  34
  35 typedef struct {
  36              unsigned char      pad1[2];
  37     volatile unsigned short     DAWR;
  38     volatile unsigned int       WTC;
  39              unsigned char      pad2[2];
  40     volatile unsigned short     CNTR;
  41     volatile unsigned long      ACR;
  42              unsigned char      pad3[2];
  43     volatile unsigned short     ST_DMA;
  44              unsigned char      pad4[2];
  45     volatile unsigned short     FLUSH;
  46              unsigned char      pad5[2];
  47     volatile unsigned short     CINT;
  48              unsigned char      pad6[2];
  49     volatile unsigned short     ISTR;
  50              unsigned char      pad7[30];
  51     volatile unsigned short     SP_DMA;
  52              unsigned char      pad8;
  53     volatile unsigned char      SASR;
  54              unsigned char      pad9;
  55     volatile unsigned char      SCMD;
  56 } a3000_scsiregs;
  57
  58 #define DAWR_A3000              (3)
  59
  60 /* CNTR bits. */
  61 #define CNTR_TCEN               (1<<5)
  62 #define CNTR_PREST              (1<<4)
  63 #define CNTR_PDMD               (1<<3)
  64 #define CNTR_INTEN              (1<<2)
  65 #define CNTR_DDIR               (1<<1)
  66 #define CNTR_IO_DX              (1<<0)
  67
  68 /* ISTR bits. */
  69 #define ISTR_INTX               (1<<8)
  70 #define ISTR_INT_F              (1<<7)
  71 #define ISTR_INTS               (1<<6)
  72 #define ISTR_E_INT              (1<<5)
  73 #define ISTR_INT_P              (1<<4)
  74 #define ISTR_UE_INT             (1<<3)
  75 #define ISTR_OE_INT             (1<<2)
  76 #define ISTR_FF_FLG             (1<<1)
  77 #define ISTR_FE_FLG             (1<<0)
  78
  79 #endif /* A3000_H */