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Some of the header files in "drivers/comedi/drivers/" are common enough to be useful to out-of-tree comedi driver modules. Using them for out-of-tree module builds is hampered by the headers being outside the "include/" directory so it is desirable to move them. There are about a couple of dozen Comedi device drivers that use the "comedi_8255" module to add digital I/O subdevices based on the venerable 8255 Programmable Peripheral Interface chip. The macros and declarations to use that module are in the "8255.h" header file in the comedi "drivers" directory. Move it into "include/linux/comedi/" and rename it to "comedi_8255.h" for naming consistency reasons. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20211117120604.117740-4-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24
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* Copyright (C) 2002 Daniel Vecino Castel <dvecino@able.es>
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*
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* PCMCIA crap at end of file is adapted from dummy_cs.c 1.31
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* 2001/08/24 12:13:13 from the pcmcia package.
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* The initial developer of the pcmcia dummy_cs.c code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*/
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/*
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* Driver: ni_daq_dio24
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* Description: National Instruments PCMCIA DAQ-Card DIO-24
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* Author: Daniel Vecino Castel <dvecino@able.es>
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* Devices: [National Instruments] PCMCIA DAQ-Card DIO-24 (ni_daq_dio24)
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* Status: ?
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* Updated: Thu, 07 Nov 2002 21:53:06 -0800
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*
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* This is just a wrapper around the 8255.o driver to properly handle
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* the PCMCIA interface.
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*/
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#include <linux/module.h>
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#include <linux/comedi/comedi_pcmcia.h>
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#include <linux/comedi/comedi_8255.h>
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static int dio24_auto_attach(struct comedi_device *dev,
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unsigned long context)
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{
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struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
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struct comedi_subdevice *s;
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int ret;
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link->config_flags |= CONF_AUTO_SET_IO;
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ret = comedi_pcmcia_enable(dev, NULL);
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if (ret)
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return ret;
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dev->iobase = link->resource[0]->start;
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ret = comedi_alloc_subdevices(dev, 1);
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if (ret)
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return ret;
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/* 8255 dio */
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s = &dev->subdevices[0];
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return subdev_8255_init(dev, s, NULL, 0x00);
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}
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static struct comedi_driver driver_dio24 = {
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.driver_name = "ni_daq_dio24",
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.module = THIS_MODULE,
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.auto_attach = dio24_auto_attach,
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.detach = comedi_pcmcia_disable,
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};
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static int dio24_cs_attach(struct pcmcia_device *link)
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{
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return comedi_pcmcia_auto_config(link, &driver_dio24);
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}
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static const struct pcmcia_device_id dio24_cs_ids[] = {
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PCMCIA_DEVICE_MANF_CARD(0x010b, 0x475c), /* daqcard-dio24 */
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PCMCIA_DEVICE_NULL
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};
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MODULE_DEVICE_TABLE(pcmcia, dio24_cs_ids);
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static struct pcmcia_driver dio24_cs_driver = {
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.name = "ni_daq_dio24",
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.owner = THIS_MODULE,
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.id_table = dio24_cs_ids,
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.probe = dio24_cs_attach,
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.remove = comedi_pcmcia_auto_unconfig,
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};
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module_comedi_pcmcia_driver(driver_dio24, dio24_cs_driver);
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MODULE_AUTHOR("Daniel Vecino Castel <dvecino@able.es>");
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MODULE_DESCRIPTION(
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"Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24");
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MODULE_LICENSE("GPL");
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