1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * das08.h
4  *
5  * Header for common DAS08 support (used by ISA/PCI/PCMCIA drivers)
6  *
7  * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
8  */
9 
10 #ifndef _DAS08_H
11 #define _DAS08_H
12 
13 #include <linux/types.h>
14 
15 struct comedi_device;
16 
17 /* different ways ai data is encoded in first two registers */
18 enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
19 /* types of ai range table used by different boards */
20 enum das08_lrange {
21 	das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl, das08_pgm
22 };
23 
24 struct das08_board_struct {
25 	const char *name;
26 	bool is_jr;		/* true for 'JR' boards */
27 	unsigned int ai_nbits;
28 	enum das08_lrange ai_pg;
29 	enum das08_ai_encoding ai_encoding;
30 	unsigned int ao_nbits;
31 	unsigned int di_nchan;
32 	unsigned int do_nchan;
33 	unsigned int i8255_offset;
34 	unsigned int i8254_offset;
35 	unsigned int iosize;	/* number of ioports used */
36 };
37 
38 struct das08_private_struct {
39 	/* bits for do/mux register on boards without separate do register */
40 	unsigned int do_mux_bits;
41 	const unsigned int *pg_gainlist;
42 };
43 
44 int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
45 
46 #endif /* _DAS08_H */
47