LXR linux/drivers/staging/comedi/drivers/das08.h

   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 seperate 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