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Comedi drivers can initialize an 8255 subdevice in I/O space by calling `subdev_8255_init()`, or in memory-mapped I/O space by calling `subdev_8255_mm_init()`, or by supplying a call-back function pointer and context to either of those functions. Change it so that a new function `subdev_8255_cb_init()` shall be called instead when supplying a callback function and context, and remove the call-back function parameter from `subdev_8255_init()` and `subdev_8255_mm_init()`. Also rename `subdev_8255_init()` to `subdev_8255_io_init()`. The parameters are changing, so might as well rename it at the same time. Also rename the `regbase` member of `struct subdev_8255_private` to `context` since this holds the context for the call-back function call. Cc: Arnd Bergmann <arnd@kernel.org> Cc: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20230913170712.111719-7-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_io_init(dev, s, 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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