tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef A2091_H
2#define A2091_H
3
4/* $Id: a2091.h,v 1.4 1997/01/19 23:07:09 davem Exp $
5 *
6 * Header file for the Commodore A2091 Zorro II SCSI controller for Linux
7 *
8 * Written and (C) 1993, Hamish Macdonald, see a2091.c for more info
9 *
10 */
11
12#include <linux/types.h>
13
14int a2091_detect(struct scsi_host_template *);
15int a2091_release(struct Scsi_Host *);
16const char *wd33c93_info(void);
17int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
18int wd33c93_abort(Scsi_Cmnd *);
19int 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 A2091_XFER_MASK (0xff000001)
34
35typedef struct {
36 unsigned char pad1[64];
37 volatile unsigned short ISTR;
38 volatile unsigned short CNTR;
39 unsigned char pad2[60];
40 volatile unsigned int WTC;
41 volatile unsigned long ACR;
42 unsigned char pad3[6];
43 volatile unsigned short DAWR;
44 unsigned char pad4;
45 volatile unsigned char SASR;
46 unsigned char pad5;
47 volatile unsigned char SCMD;
48 unsigned char pad6[76];
49 volatile unsigned short ST_DMA;
50 volatile unsigned short SP_DMA;
51 volatile unsigned short CINT;
52 unsigned char pad7[2];
53 volatile unsigned short FLUSH;
54} a2091_scsiregs;
55
56#define DAWR_A2091 (3)
57
58/* CNTR bits. */
59#define CNTR_TCEN (1<<7)
60#define CNTR_PREST (1<<6)
61#define CNTR_PDMD (1<<5)
62#define CNTR_INTEN (1<<4)
63#define CNTR_DDIR (1<<3)
64
65/* ISTR bits. */
66#define ISTR_INTX (1<<8)
67#define ISTR_INT_F (1<<7)
68#define ISTR_INTS (1<<6)
69#define ISTR_E_INT (1<<5)
70#define ISTR_INT_P (1<<4)
71#define ISTR_UE_INT (1<<3)
72#define ISTR_OE_INT (1<<2)
73#define ISTR_FF_FLG (1<<1)
74#define ISTR_FE_FLG (1<<0)
75
76#endif /* A2091_H */