linux/drivers/staging/comedi/drivers/addi_apci_2200.c
<<
>>
Prefs
   1/*
   2 * addi_apci_2200.c
   3 * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
   4 * Project manager: Eric Stolz
   5 *
   6 *      ADDI-DATA GmbH
   7 *      Dieselstrasse 3
   8 *      D-77833 Ottersweier
   9 *      Tel: +19(0)7223/9493-0
  10 *      Fax: +49(0)7223/9493-92
  11 *      http://www.addi-data.com
  12 *      info@addi-data.com
  13 *
  14 * This program is free software; you can redistribute it and/or modify it
  15 * under the terms of the GNU General Public License as published by the
  16 * Free Software Foundation; either version 2 of the License, or (at your
  17 * option) any later version.
  18 *
  19 * This program is distributed in the hope that it will be useful, but WITHOUT
  20 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  21 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  22 * more details.
  23 */
  24
  25#include <linux/module.h>
  26#include <linux/pci.h>
  27
  28#include "../comedidev.h"
  29#include "addi_watchdog.h"
  30
  31/*
  32 * I/O Register Map
  33 */
  34#define APCI2200_DI_REG                 0x00
  35#define APCI2200_DO_REG                 0x04
  36#define APCI2200_WDOG_REG               0x08
  37
  38static int apci2200_di_insn_bits(struct comedi_device *dev,
  39                                 struct comedi_subdevice *s,
  40                                 struct comedi_insn *insn,
  41                                 unsigned int *data)
  42{
  43        data[1] = inw(dev->iobase + APCI2200_DI_REG);
  44
  45        return insn->n;
  46}
  47
  48static int apci2200_do_insn_bits(struct comedi_device *dev,
  49                                 struct comedi_subdevice *s,
  50                                 struct comedi_insn *insn,
  51                                 unsigned int *data)
  52{
  53        s->state = inw(dev->iobase + APCI2200_DO_REG);
  54
  55        if (comedi_dio_update_state(s, data))
  56                outw(s->state, dev->iobase + APCI2200_DO_REG);
  57
  58        data[1] = s->state;
  59
  60        return insn->n;
  61}
  62
  63static int apci2200_reset(struct comedi_device *dev)
  64{
  65        outw(0x0, dev->iobase + APCI2200_DO_REG);
  66
  67        addi_watchdog_reset(dev->iobase + APCI2200_WDOG_REG);
  68
  69        return 0;
  70}
  71
  72static int apci2200_auto_attach(struct comedi_device *dev,
  73                                unsigned long context_unused)
  74{
  75        struct pci_dev *pcidev = comedi_to_pci_dev(dev);
  76        struct comedi_subdevice *s;
  77        int ret;
  78
  79        ret = comedi_pci_enable(dev);
  80        if (ret)
  81                return ret;
  82
  83        dev->iobase = pci_resource_start(pcidev, 1);
  84
  85        ret = comedi_alloc_subdevices(dev, 3);
  86        if (ret)
  87                return ret;
  88
  89        /* Initialize the digital input subdevice */
  90        s = &dev->subdevices[0];
  91        s->type         = COMEDI_SUBD_DI;
  92        s->subdev_flags = SDF_READABLE;
  93        s->n_chan       = 8;
  94        s->maxdata      = 1;
  95        s->range_table  = &range_digital;
  96        s->insn_bits    = apci2200_di_insn_bits;
  97
  98        /* Initialize the digital output subdevice */
  99        s = &dev->subdevices[1];
 100        s->type         = COMEDI_SUBD_DO;
 101        s->subdev_flags = SDF_WRITABLE;
 102        s->n_chan       = 16;
 103        s->maxdata      = 1;
 104        s->range_table  = &range_digital;
 105        s->insn_bits    = apci2200_do_insn_bits;
 106
 107        /* Initialize the watchdog subdevice */
 108        s = &dev->subdevices[2];
 109        ret = addi_watchdog_init(s, dev->iobase + APCI2200_WDOG_REG);
 110        if (ret)
 111                return ret;
 112
 113        apci2200_reset(dev);
 114        return 0;
 115}
 116
 117static void apci2200_detach(struct comedi_device *dev)
 118{
 119        if (dev->iobase)
 120                apci2200_reset(dev);
 121        comedi_pci_detach(dev);
 122}
 123
 124static struct comedi_driver apci2200_driver = {
 125        .driver_name    = "addi_apci_2200",
 126        .module         = THIS_MODULE,
 127        .auto_attach    = apci2200_auto_attach,
 128        .detach         = apci2200_detach,
 129};
 130
 131static int apci2200_pci_probe(struct pci_dev *dev,
 132                              const struct pci_device_id *id)
 133{
 134        return comedi_pci_auto_config(dev, &apci2200_driver, id->driver_data);
 135}
 136
 137static const struct pci_device_id apci2200_pci_table[] = {
 138        { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1005) },
 139        { 0 }
 140};
 141MODULE_DEVICE_TABLE(pci, apci2200_pci_table);
 142
 143static struct pci_driver apci2200_pci_driver = {
 144        .name           = "addi_apci_2200",
 145        .id_table       = apci2200_pci_table,
 146        .probe          = apci2200_pci_probe,
 147        .remove         = comedi_pci_auto_unconfig,
 148};
 149module_comedi_pci_driver(apci2200_driver, apci2200_pci_driver);
 150
 151MODULE_DESCRIPTION("ADDI-DATA APCI-2200 Relay board, optically isolated");
 152MODULE_AUTHOR("Comedi http://www.comedi.org");
 153MODULE_LICENSE("GPL");
 154
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.