linux/drivers/staging/comedi/drivers/das08.h
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   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
  19#ifndef _DAS08_H
  20#define _DAS08_H
  21
  22/* different ways ai data is encoded in first two registers */
  23enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
  24enum das08_lrange { das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl,
  25        das08_pgm
  26};
  27
  28struct das08_board_struct {
  29        const char *name;
  30        bool is_jr;             /* true for 'JR' boards */
  31        unsigned int ai_nbits;
  32        enum das08_lrange ai_pg;
  33        enum das08_ai_encoding ai_encoding;
  34        unsigned int ao_nbits;
  35        unsigned int di_nchan;
  36        unsigned int do_nchan;
  37        unsigned int i8255_offset;
  38        unsigned int i8254_offset;
  39        unsigned int iosize;    /*  number of ioports used */
  40};
  41
  42struct das08_private_struct {
  43        unsigned int do_mux_bits;       /*  bits for do/mux register on boards
  44                                         *  without separate do register
  45                                         */
  46        const unsigned int *pg_gainlist;
  47};
  48
  49int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
  50
  51#endif /* _DAS08_H */
  52