root/drivers/comedi/drivers/ni_daq_dio24.c
// SPDX-License-Identifier: GPL-2.0+
/*
 * Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24
 * Copyright (C) 2002 Daniel Vecino Castel <dvecino@able.es>
 *
 * PCMCIA crap at end of file is adapted from dummy_cs.c 1.31
 * 2001/08/24 12:13:13 from the pcmcia package.
 * The initial developer of the pcmcia dummy_cs.c code is David A. Hinds
 * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
 * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
 */

/*
 * Driver: ni_daq_dio24
 * Description: National Instruments PCMCIA DAQ-Card DIO-24
 * Author: Daniel Vecino Castel <dvecino@able.es>
 * Devices: [National Instruments] PCMCIA DAQ-Card DIO-24 (ni_daq_dio24)
 * Status: ?
 * Updated: Thu, 07 Nov 2002 21:53:06 -0800
 *
 * This is just a wrapper around the 8255.o driver to properly handle
 * the PCMCIA interface.
 */

#include <linux/module.h>
#include <linux/comedi/comedi_pcmcia.h>
#include <linux/comedi/comedi_8255.h>

static int dio24_auto_attach(struct comedi_device *dev,
                             unsigned long context)
{
        struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
        struct comedi_subdevice *s;
        int ret;

        link->config_flags |= CONF_AUTO_SET_IO;
        ret = comedi_pcmcia_enable(dev, NULL);
        if (ret)
                return ret;
        dev->iobase = link->resource[0]->start;

        ret = comedi_alloc_subdevices(dev, 1);
        if (ret)
                return ret;

        /* 8255 dio */
        s = &dev->subdevices[0];
        return subdev_8255_io_init(dev, s, 0x00);
}

static struct comedi_driver driver_dio24 = {
        .driver_name    = "ni_daq_dio24",
        .module         = THIS_MODULE,
        .auto_attach    = dio24_auto_attach,
        .detach         = comedi_pcmcia_disable,
};

static int dio24_cs_attach(struct pcmcia_device *link)
{
        return comedi_pcmcia_auto_config(link, &driver_dio24);
}

static const struct pcmcia_device_id dio24_cs_ids[] = {
        PCMCIA_DEVICE_MANF_CARD(0x010b, 0x475c),        /* daqcard-dio24 */
        PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, dio24_cs_ids);

static struct pcmcia_driver dio24_cs_driver = {
        .name           = "ni_daq_dio24",
        .owner          = THIS_MODULE,
        .id_table       = dio24_cs_ids,
        .probe          = dio24_cs_attach,
        .remove         = comedi_pcmcia_auto_unconfig,
};
module_comedi_pcmcia_driver(driver_dio24, dio24_cs_driver);

MODULE_AUTHOR("Daniel Vecino Castel <dvecino@able.es>");
MODULE_DESCRIPTION(
        "Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24");
MODULE_LICENSE("GPL");