1#ifndef A2091_H
2#define A2091_H
3
4/* $Id: a2091.h,v 1.1.1.1 2008/10/15 03:26:49 james26_jang 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(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 NULL
22#define NULL 0
23#endif
24
25#ifndef CMD_PER_LUN
26#define CMD_PER_LUN 2
27#endif
28
29#ifndef CAN_QUEUE
30#define CAN_QUEUE 16
31#endif
32
33#define A2091_SCSI {  proc_name:	   "A2901", \
34		      name:                "Commodore A2091/A590 SCSI", \
35		      detect:              a2091_detect,    \
36		      release:             a2091_release,   \
37		      queuecommand:        wd33c93_queuecommand, \
38		      abort:               wd33c93_abort,   \
39		      reset:               wd33c93_reset,   \
40		      can_queue:           CAN_QUEUE,       \
41		      this_id:             7,               \
42		      sg_tablesize:        SG_ALL,          \
43		      cmd_per_lun:	   CMD_PER_LUN,     \
44		      use_clustering:      DISABLE_CLUSTERING }
45
46/*
47 * if the transfer address ANDed with this results in a non-zero
48 * result, then we can't use DMA.
49 */
50#define A2091_XFER_MASK  (0xff000001)
51
52typedef struct {
53             unsigned char      pad1[64];
54    volatile unsigned short     ISTR;
55    volatile unsigned short     CNTR;
56             unsigned char      pad2[60];
57    volatile unsigned int       WTC;
58    volatile unsigned long      ACR;
59             unsigned char      pad3[6];
60    volatile unsigned short     DAWR;
61             unsigned char      pad4;
62    volatile unsigned char      SASR;
63             unsigned char      pad5;
64    volatile unsigned char      SCMD;
65             unsigned char      pad6[76];
66    volatile unsigned short     ST_DMA;
67    volatile unsigned short     SP_DMA;
68    volatile unsigned short     CINT;
69             unsigned char      pad7[2];
70    volatile unsigned short     FLUSH;
71} a2091_scsiregs;
72
73#define DAWR_A2091		(3)
74
75/* CNTR bits. */
76#define CNTR_TCEN		(1<<7)
77#define CNTR_PREST		(1<<6)
78#define CNTR_PDMD		(1<<5)
79#define CNTR_INTEN		(1<<4)
80#define CNTR_DDIR		(1<<3)
81
82/* ISTR bits. */
83#define ISTR_INTX		(1<<8)
84#define ISTR_INT_F		(1<<7)
85#define ISTR_INTS		(1<<6)
86#define ISTR_E_INT		(1<<5)
87#define ISTR_INT_P		(1<<4)
88#define ISTR_UE_INT		(1<<3)
89#define ISTR_OE_INT		(1<<2)
90#define ISTR_FF_FLG		(1<<1)
91#define ISTR_FE_FLG		(1<<0)
92
93#endif /* A2091_H */
94