File: /usr/src/linux/drivers/scsi/a3000.h

1     #ifndef A3000_H
2     #define A3000_H
3     
4     /* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $
5      *
6      * Header file for the Amiga 3000 built-in SCSI controller for Linux
7      *
8      * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
9      *
10      */
11     
12     #include <linux/types.h>
13     
14     int a3000_detect(Scsi_Host_Template *);
15     int a3000_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 _A3000_SCSI { proc_name:	   "A3000",			\
34     		      proc_info:           NULL,			\
35     		      name:                "Amiga 3000 built-in SCSI",	\
36     		      detect:              a3000_detect,		\
37     		      release:             a3000_release,		\
38     		      queuecommand:        wd33c93_queuecommand,	\
39     		      abort:               wd33c93_abort,		\
40     		      reset:               wd33c93_reset,		\
41     		      can_queue:           CAN_QUEUE,			\
42     		      this_id:             7,				\
43     		      sg_tablesize:        SG_ALL,			\
44     		      cmd_per_lun:	   CMD_PER_LUN,			\
45     		      use_clustering:      ENABLE_CLUSTERING }
46     
47     /*
48      * if the transfer address ANDed with this results in a non-zero
49      * result, then we can't use DMA.
50      */
51     #define A3000_XFER_MASK  (0x00000003)
52     
53     typedef struct {
54                  unsigned char      pad1[2];
55         volatile unsigned short     DAWR;
56         volatile unsigned int       WTC;
57                  unsigned char      pad2[2];
58         volatile unsigned short     CNTR;
59         volatile unsigned long      ACR;
60                  unsigned char      pad3[2];
61         volatile unsigned short     ST_DMA;
62                  unsigned char      pad4[2];
63         volatile unsigned short     FLUSH;
64                  unsigned char      pad5[2];
65         volatile unsigned short     CINT;
66                  unsigned char      pad6[2];
67         volatile unsigned short     ISTR;
68     	     unsigned char      pad7[30];
69         volatile unsigned short     SP_DMA;
70                  unsigned char      pad8;
71         volatile unsigned char      SASR;
72                  unsigned char      pad9;
73         volatile unsigned char      SCMD;
74     } a3000_scsiregs;
75     
76     #define DAWR_A3000		(3)
77     
78     /* CNTR bits. */
79     #define CNTR_TCEN		(1<<5)
80     #define CNTR_PREST		(1<<4)
81     #define CNTR_PDMD		(1<<3)
82     #define CNTR_INTEN		(1<<2)
83     #define CNTR_DDIR		(1<<1)
84     #define CNTR_IO_DX		(1<<0)
85     
86     /* ISTR bits. */
87     #define ISTR_INTX		(1<<8)
88     #define ISTR_INT_F		(1<<7)
89     #define ISTR_INTS		(1<<6)
90     #define ISTR_E_INT		(1<<5)
91     #define ISTR_INT_P		(1<<4)
92     #define ISTR_UE_INT		(1<<3)
93     #define ISTR_OE_INT		(1<<2)
94     #define ISTR_FF_FLG		(1<<1)
95     #define ISTR_FE_FLG		(1<<0)
96     
97     #endif /* A3000_H */
98