das08.h revision 935e99fb0739aa64d0dd7e8a0bc82faec5d8f830 
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};
33
34struct das08_board_struct {
35	const char *name;
36	unsigned int id;	/*  id for pci/pcmcia boards */
37	enum das08_bustype bustype;
38	void *ai;
39	unsigned int ai_nbits;
40	enum das08_lrange ai_pg;
41	enum das08_ai_encoding ai_encoding;
42	void *ao;
43	unsigned int ao_nbits;
44	void *di;
45	void *do_;
46	unsigned int do_nchan;
47	unsigned int i8255_offset;
48	unsigned int i8254_offset;
49	unsigned int iosize;	/*  number of ioports used */
50};
51
52struct i8254_struct {
53	int channels;		/*  available channels. Some could be used internally. */
54	int logic2phys[3];	/*  to know which physical channel is. */
55	int mode[3];		/*  the index is the real counter. */
56	unsigned int iobase;
57};
58
59#define I8254_CNT0 0
60#define I8254_CNT1 1
61#define I8254_CNT2 2
62#define I8254_CTRL 3
63
64struct das08_private_struct {
65	unsigned int do_mux_bits;	/*  bits for do/mux register on boards without separate do register */
66	unsigned int do_bits;	/*  bits for do register on boards with register dedicated to digital out only */
67	const unsigned int *pg_gainlist;
68	struct pci_dev *pdev;	/*  struct for pci-das08 */
69	unsigned int pci_iobase;	/*  additional base address for pci-das08 */
70	struct i8254_struct i8254;
71};
72
73#define NUM_DAS08_CS_BOARDS 2
74extern struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS];
75
76int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
77int das08_common_detach(struct comedi_device *dev);
78
79#endif /* _DAS08_H */
80