drivers/staging/comedi/drivers/ni_daq_dio24.c

   1 /*
   2     comedi/drivers/ni_daq_dio24.c
   3     Driver for National Instruments PCMCIA DAQ-Card DIO-24
   4     Copyright (C) 2002 Daniel Vecino Castel <dvecino@able.es>
   5
   6     PCMCIA crap at end of file is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13
   7     from the pcmcia package.
   8     The initial developer of the pcmcia dummy_cs.c code is David A. Hinds
   9     <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  10     are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  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 /*
  29 Driver: ni_daq_dio24
  30 Description: National Instruments PCMCIA DAQ-Card DIO-24
  31 Author: Daniel Vecino Castel <dvecino@able.es>
  32 Devices: [National Instruments] PCMCIA DAQ-Card DIO-24 (ni_daq_dio24)
  33 Status: ?
  34 Updated: Thu, 07 Nov 2002 21:53:06 -0800
  35
  36 This is just a wrapper around the 8255.o driver to properly handle
  37 the PCMCIA interface.
  38 */
  39
  40 #include "../comedidev.h"
  41
  42 #include <pcmcia/cistpl.h>
  43 #include <pcmcia/cisreg.h>
  44 #include <pcmcia/ds.h>
  45
  46 #include "8255.h"
  47
  48 static int dio24_auto_attach(struct comedi_device *dev,
  49                              unsigned long context)
  50 {
  51         struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
  52         struct comedi_subdevice *s;
  53         int ret;
  54
  55         link->config_flags |= CONF_AUTO_SET_IO;
  56         ret = comedi_pcmcia_enable(dev, NULL);
  57         if (ret)
  58                 return ret;
  59         dev->iobase = link->resource[0]->start;
  60
  61         ret = comedi_alloc_subdevices(dev, 1);
  62         if (ret)
  63                 return ret;
  64
  65         /* 8255 dio */
  66         s = &dev->subdevices[0];
  67         ret = subdev_8255_init(dev, s, NULL, dev->iobase);
  68         if (ret)
  69                 return ret;
  70
  71         return 0;
  72 }
  73
  74 static void dio24_detach(struct comedi_device *dev)
  75 {
  76         comedi_spriv_free(dev, 0);
  77         comedi_pcmcia_disable(dev);
  78 }
  79
  80 static struct comedi_driver driver_dio24 = {
  81         .driver_name    = "ni_daq_dio24",
  82         .module         = THIS_MODULE,
  83         .auto_attach    = dio24_auto_attach,
  84         .detach         = dio24_detach,
  85 };
  86
  87 static int dio24_cs_attach(struct pcmcia_device *link)
  88 {
  89         return comedi_pcmcia_auto_config(link, &driver_dio24);
  90 }
  91
  92 static const struct pcmcia_device_id dio24_cs_ids[] = {
  93         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x475c),        /* daqcard-dio24 */
  94         PCMCIA_DEVICE_NULL
  95 };
  96 MODULE_DEVICE_TABLE(pcmcia, dio24_cs_ids);
  97
  98 static struct pcmcia_driver dio24_cs_driver = {
  99         .name           = "ni_daq_dio24",
 100         .owner          = THIS_MODULE,
 101         .id_table       = dio24_cs_ids,
 102         .probe          = dio24_cs_attach,
 103         .remove         = comedi_pcmcia_auto_unconfig,
 104 };
 105 module_comedi_pcmcia_driver(driver_dio24, dio24_cs_driver);
 106
 107 MODULE_AUTHOR("Daniel Vecino Castel <dvecino@able.es>");
 108 MODULE_DESCRIPTION(
 109         "Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24");
 110 MODULE_LICENSE("GPL");