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
  27 enum das08_bustype { isa, pci, pcmcia, pc104 };
  28 /* different ways ai data is encoded in first two registers */
  29 enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
  30 enum das08_lrange { das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl,
  31         das08_pgm
  32 };
  33
  34 struct 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
  52 struct 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
  64 struct das08_private_struct {
  65         unsigned int do_mux_bits;       /*  bits for do/mux register on boards without separate 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
  74 extern struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS];
  75
  76 int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
  77 int das08_common_detach(struct comedi_device *dev);
  78
  79 #endif /* _DAS08_H */