LXR linux/drivers/staging/comedi/drivers/amplc

   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 */
  38enum dio200_regtype { no_regtype = 0, io_regtype, mmio_regtype };
  39struct 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 */
  50enum 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
  59struct 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
  68enum dio200_bustype { isa_bustype, pci_bustype };
  69
  70struct 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 */
  82struct dio200_private {
  83        struct dio200_region io;        /* Register region */
  84        int intr_sd;
  85};
  86
  87int amplc_dio200_common_attach(struct comedi_device *dev, unsigned int irq,
  88                               unsigned long req_irq_flags);
  89
  90void amplc_dio200_common_detach(struct comedi_device *dev);
  91
  92/* Used by initialization of PCIe boards. */
  93void amplc_dio200_set_enhance(struct comedi_device *dev, unsigned char val);
  94
  95#endif
  96