linux/drivers/staging/comedi/drivers/das08.h
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   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
  15struct comedi_device;
  16
  17/* different ways ai data is encoded in first two registers */
  18enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
  19/* types of ai range table used by different boards */
  20enum das08_lrange {
  21        das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl, das08_pgm
  22};
  23
  24struct 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
  38struct 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
  44int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
  45
  46#endif /* _DAS08_H */
  47