73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
|
#ifndef A3000_H
|
||
|
|
#define A3000_H
|
||
|
|
|
||
|
|
/* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $
|
||
|
|
*
|
||
|
|
* Header file for the Amiga 3000 built-in SCSI controller for Linux
|
||
|
|
*
|
||
|
|
* Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
#ifndef CMD_PER_LUN
|
||
|
|
#define CMD_PER_LUN 2
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef CAN_QUEUE
|
||
|
|
#define CAN_QUEUE 16
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* if the transfer address ANDed with this results in a non-zero
|
||
|
|
* result, then we can't use DMA.
|
||
|
|
*/
|
||
|
|
#define A3000_XFER_MASK (0x00000003)
|
||
|
|
|
||
|
|
struct a3000_scsiregs {
|
||
|
|
unsigned char pad1[2];
|
||
|
|
volatile unsigned short DAWR;
|
||
|
|
volatile unsigned int WTC;
|
||
|
|
unsigned char pad2[2];
|
||
|
|
volatile unsigned short CNTR;
|
||
|
|
volatile unsigned long ACR;
|
||
|
|
unsigned char pad3[2];
|
||
|
|
volatile unsigned short ST_DMA;
|
||
|
|
unsigned char pad4[2];
|
||
|
|
volatile unsigned short FLUSH;
|
||
|
|
unsigned char pad5[2];
|
||
|
|
volatile unsigned short CINT;
|
||
|
|
unsigned char pad6[2];
|
||
|
|
volatile unsigned short ISTR;
|
||
|
|
unsigned char pad7[30];
|
||
|
|
volatile unsigned short SP_DMA;
|
||
|
|
unsigned char pad8;
|
||
|
|
volatile unsigned char SASR;
|
||
|
|
unsigned char pad9;
|
||
|
|
volatile unsigned char SCMD;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define DAWR_A3000 (3)
|
||
|
|
|
||
|
|
/* CNTR bits. */
|
||
|
|
#define CNTR_TCEN (1<<5)
|
||
|
|
#define CNTR_PREST (1<<4)
|
||
|
|
#define CNTR_PDMD (1<<3)
|
||
|
|
#define CNTR_INTEN (1<<2)
|
||
|
|
#define CNTR_DDIR (1<<1)
|
||
|
|
#define CNTR_IO_DX (1<<0)
|
||
|
|
|
||
|
|
/* ISTR bits. */
|
||
|
|
#define ISTR_INTX (1<<8)
|
||
|
|
#define ISTR_INT_F (1<<7)
|
||
|
|
#define ISTR_INTS (1<<6)
|
||
|
|
#define ISTR_E_INT (1<<5)
|
||
|
|
#define ISTR_INT_P (1<<4)
|
||
|
|
#define ISTR_UE_INT (1<<3)
|
||
|
|
#define ISTR_OE_INT (1<<2)
|
||
|
|
#define ISTR_FF_FLG (1<<1)
|
||
|
|
#define ISTR_FE_FLG (1<<0)
|
||
|
|
|
||
|
|
#endif /* A3000_H */
|