4 Header for das08.c and das08_cs.c
6 Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
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.
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.
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.
27 /* different ways ai data is encoded in first two registers */
28 enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
29 enum das08_lrange { das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl,
33 struct das08_board_struct {
35 bool is_jr; /* true for 'JR' boards */
36 unsigned int ai_nbits;
37 enum das08_lrange ai_pg;
38 enum das08_ai_encoding ai_encoding;
39 unsigned int ao_nbits;
40 unsigned int di_nchan;
41 unsigned int do_nchan;
42 unsigned int i8255_offset;
43 unsigned int i8254_offset;
44 unsigned int iosize; /* number of ioports used */
47 struct das08_private_struct {
48 unsigned int do_mux_bits; /* bits for do/mux register on boards without separate do register */
49 unsigned int do_bits; /* bits for do register on boards with register dedicated to digital out only */
50 const unsigned int *pg_gainlist;
51 unsigned int ao_readback[2]; /* assume 2 AO channels */
54 int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
55 void das08_common_detach(struct comedi_device *dev);