das08.h revision 0882eaa6432daef1ec1b586cda9044df6352633f 
1/*
2    das08.h
3
4    Header for das08.c and das08_cs.c
5
6    Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
7
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 2 of the License, or
11    (at your option) any later version.
12
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software
20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22*/
23
24#ifndef _DAS08_H
25#define _DAS08_H
26
27enum das08_bustype { isa, pci, pcmcia, pc104 };
28// different ways ai data is encoded in first two registers
29enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
30enum das08_lrange { das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl,
31		das08_pgm };
32
33typedef struct das08_board_struct {
34	const char *name;
35	unsigned int id;	// id for pci/pcmcia boards
36	enum das08_bustype bustype;
37	void *ai;
38	unsigned int ai_nbits;
39	enum das08_lrange ai_pg;
40	enum das08_ai_encoding ai_encoding;
41	void *ao;
42	unsigned int ao_nbits;
43	void *di;
44	void *do_;
45	unsigned int do_nchan;
46	unsigned int i8255_offset;
47	unsigned int i8254_offset;
48	unsigned int iosize;	// number of ioports used
49} das08_board;
50
51struct i8254_struct {
52	int channels;		// available channels. Some could be used internally.
53	int logic2phys[3];	// to know which physical channel is.
54	int mode[3];		// the index is the real counter.
55	unsigned int iobase;
56};
57
58#define I8254_CNT0 0
59#define I8254_CNT1 1
60#define I8254_CNT2 2
61#define I8254_CTRL 3
62
63struct das08_private_struct {
64	unsigned int do_mux_bits;	// bits for do/mux register on boards without seperate do register
65	unsigned int do_bits;	// bits for do register on boards with register dedicated to digital out only
66	const unsigned int *pg_gainlist;
67	struct pci_dev *pdev;	// struct for pci-das08
68	unsigned int pci_iobase;	// additional base address for pci-das08
69	struct i8254_struct i8254;
70};
71
72#define NUM_DAS08_CS_BOARDS 2
73extern struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS];
74
75int das08_common_attach(comedi_device * dev, unsigned long iobase);
76int das08_common_detach(comedi_device * dev);
77
78#endif /* _DAS08_H */
79