drivers/staging/comedi/drivers/amplc_dio200.h

   1 /*
   2     comedi/drivers/amplc_dio.h
   3
   4     Header for amplc_dio200.c, amplc_dio200_common.c and
   5     amplc_dio200_pci.c.
   6
   7     Copyright (C) 2005-2013 MEV Ltd. <http://www.mev.co.uk/>
   8
   9     COMEDI - Linux Control and Measurement Device Interface
  10     Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org>
  11
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; either version 2 of the License, or
  15     (at your option) any later version.
  16
  17     This program is distributed in the hope that it will be useful,
  18     but WITHOUT ANY WARRANTY; without even the implied warranty of
  19     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20     GNU General Public License for more details.
  21
  22     You should have received a copy of the GNU General Public License
  23     along with this program; if not, write to the Free Software
  24     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25
  26 */
  27
  28 #ifndef AMPLC_DIO200_H_INCLUDED
  29 #define AMPLC_DIO200_H_INCLUDED
  30
  31 /* 200 series register area sizes */
  32 #define DIO200_IO_SIZE          0x20
  33 #define DIO200_PCIE_IO_SIZE     0x4000
  34
  35 /*
  36  * Register region.
  37  */
  38 enum dio200_regtype { no_regtype = 0, io_regtype, mmio_regtype };
  39 struct dio200_region {
  40         union {
  41                 unsigned long iobase;           /* I/O base address */
  42                 unsigned char __iomem *membase; /* mapped MMIO base address */
  43         } u;
  44         enum dio200_regtype regtype;
  45 };
  46
  47 /*
  48  * Subdevice types.
  49  */
  50 enum dio200_sdtype { sd_none, sd_intr, sd_8255, sd_8254, sd_timer };
  51
  52 #define DIO200_MAX_SUBDEVS      8
  53 #define DIO200_MAX_ISNS         6
  54
  55 /*
  56  * Board descriptions.
  57  */
  58
  59 struct dio200_layout {
  60         unsigned short n_subdevs;       /* number of subdevices */
  61         unsigned char sdtype[DIO200_MAX_SUBDEVS];       /* enum dio200_sdtype */
  62         unsigned char sdinfo[DIO200_MAX_SUBDEVS];       /* depends on sdtype */
  63         bool has_int_sce:1;             /* has interrupt enable/status reg */
  64         bool has_clk_gat_sce:1;         /* has clock/gate selection registers */
  65         bool has_enhancements:1;        /* has enhanced features */
  66 };
  67
  68 enum dio200_bustype { isa_bustype, pci_bustype };
  69
  70 struct dio200_board {
  71         const char *name;
  72         struct dio200_layout layout;
  73         enum dio200_bustype bustype;
  74         unsigned char mainbar;
  75         unsigned char mainshift;
  76         unsigned int mainsize;
  77 };
  78
  79 /*
  80  * Comedi device private data.
  81  */
  82 struct dio200_private {
  83         struct dio200_region io;        /* Register region */
  84         int intr_sd;
  85 };
  86
  87 int amplc_dio200_common_attach(struct comedi_device *dev, unsigned int irq,
  88                                unsigned long req_irq_flags);
  89
  90 void amplc_dio200_common_detach(struct comedi_device *dev);
  91
  92 /* Used by initialization of PCIe boards. */
  93 void amplc_dio200_set_enhance(struct comedi_device *dev, unsigned char val);
  94
  95 #endif