root/drivers/staging/comedi/drivers/das08.h

INCLUDED FROM

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