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#ifndef 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>
int a2091_detect(Scsi_Host_Template *);
int a2091_release(struct Scsi_Host *);
const char *wd33c93_info(void);
int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
int wd33c93_abort(Scsi_Cmnd *);
int wd33c93_reset(Scsi_Cmnd *, unsigned int);
#ifndef NULL
#define NULL 0
#endif
#ifndef CMD_PER_LUN
#define CMD_PER_LUN 2
#endif
#ifndef CAN_QUEUE
#define CAN_QUEUE 16
#endif
#ifdef HOSTS_C
extern struct proc_dir_entry proc_scsi_a2091;
#define A2091_SCSI { proc_dir: &proc_scsi_a2091, \
name: "Commodore A2091/A590 SCSI", \
detect: a2091_detect, \
release: a2091_release, \
queuecommand: wd33c93_queuecommand, \
abort: wd33c93_abort, \
reset: wd33c93_reset, \
can_queue: CAN_QUEUE, \
this_id: 7, \
sg_tablesize: SG_ALL, \
cmd_per_lun: CMD_PER_LUN, \
use_clustering: DISABLE_CLUSTERING }
#else
/*
* if the transfer address ANDed with this results in a non-zero
* result, then we can't use DMA.
*/
#define A2091_XFER_MASK (0xff000001)
typedef struct {
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;
} a2091_scsiregs;
#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 /* else def HOSTS_C */
#endif /* A2091_H */
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