forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
1.5 KiB
70 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
#ifndef A2091_H |
|
#define A2091_H |
|
|
|
/* $Id: a2091.h,v 1.4 1997/01/19 23:07:09 davem Exp $ |
|
* |
|
* Header file for the Commodore A2091 Zorro II SCSI controller for Linux |
|
* |
|
* Written and (C) 1993, Hamish Macdonald, see a2091.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 A2091_XFER_MASK (0xff000001) |
|
|
|
struct a2091_scsiregs { |
|
unsigned char pad1[64]; |
|
volatile unsigned short ISTR; |
|
volatile unsigned short CNTR; |
|
unsigned char pad2[60]; |
|
volatile unsigned int WTC; |
|
volatile unsigned long ACR; |
|
unsigned char pad3[6]; |
|
volatile unsigned short DAWR; |
|
unsigned char pad4; |
|
volatile unsigned char SASR; |
|
unsigned char pad5; |
|
volatile unsigned char SCMD; |
|
unsigned char pad6[76]; |
|
volatile unsigned short ST_DMA; |
|
volatile unsigned short SP_DMA; |
|
volatile unsigned short CINT; |
|
unsigned char pad7[2]; |
|
volatile unsigned short FLUSH; |
|
}; |
|
|
|
#define DAWR_A2091 (3) |
|
|
|
/* CNTR bits. */ |
|
#define CNTR_TCEN (1<<7) |
|
#define CNTR_PREST (1<<6) |
|
#define CNTR_PDMD (1<<5) |
|
#define CNTR_INTEN (1<<4) |
|
#define CNTR_DDIR (1<<3) |
|
|
|
/* 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 /* A2091_H */
|
|
|