xref: /openbmc/linux/drivers/scsi/gvp11.h (revision 384740dc)
1 #ifndef GVP11_H
2 
3 /* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $
4  *
5  * Header file for the GVP Series II SCSI controller for Linux
6  *
7  * Written and (C) 1993, Ralf Baechle, see gvp11.c for more info
8  * based on a2091.h (C) 1993 by Hamish Macdonald
9  *
10  */
11 
12 #include <linux/types.h>
13 
14 int gvp11_detect(struct scsi_host_template *);
15 int gvp11_release(struct Scsi_Host *);
16 
17 #ifndef CMD_PER_LUN
18 #define CMD_PER_LUN 2
19 #endif
20 
21 #ifndef CAN_QUEUE
22 #define CAN_QUEUE 16
23 #endif
24 
25 #ifndef HOSTS_C
26 
27 /*
28  * if the transfer address ANDed with this results in a non-zero
29  * result, then we can't use DMA.
30  */
31 #define GVP11_XFER_MASK  (0xff000001)
32 
33 typedef struct {
34              unsigned char      pad1[64];
35     volatile unsigned short     CNTR;
36              unsigned char      pad2[31];
37     volatile unsigned char      SASR;
38              unsigned char      pad3;
39     volatile unsigned char      SCMD;
40              unsigned char      pad4[4];
41     volatile unsigned short     BANK;
42              unsigned char      pad5[6];
43     volatile unsigned long      ACR;
44     volatile unsigned short     secret1; /* store 0 here */
45     volatile unsigned short     ST_DMA;
46     volatile unsigned short     SP_DMA;
47     volatile unsigned short     secret2; /* store 1 here */
48     volatile unsigned short     secret3; /* store 15 here */
49 } gvp11_scsiregs;
50 
51 /* bits in CNTR */
52 #define GVP11_DMAC_BUSY		(1<<0)
53 #define GVP11_DMAC_INT_PENDING	(1<<1)
54 #define GVP11_DMAC_INT_ENABLE	(1<<3)
55 #define GVP11_DMAC_DIR_WRITE	(1<<4)
56 
57 #endif /* else def HOSTS_C */
58 
59 #endif /* GVP11_H */
60