File: /usr/src/linux/drivers/scsi/a2091.h

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     
14     int a2091_detect(Scsi_Host_Template *);
15     int a2091_release(struct Scsi_Host *);
16     const char *wd33c93_info(void);
17     int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
18     int wd33c93_abort(Scsi_Cmnd *);
19     int 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     
52     typedef 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