linux/drivers/comedi/drivers/8255_pci.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * COMEDI driver for generic PCI based 8255 digital i/o boards
 * Copyright (C) 2012 H Hartley Sweeten <[email protected]>
 *
 * Based on the tested adl_pci7296 driver written by:
 *	Jon Grierson <[email protected]>
 * and the experimental cb_pcidio driver written by:
 *	Yoshiya Matsuzaka
 *
 * COMEDI - Linux Control and Measurement Device Interface
 * Copyright (C) 2000 David A. Schleef <[email protected]>
 */

/*
 * Driver: 8255_pci
 * Description: Generic PCI based 8255 Digital I/O boards
 * Devices: [ADLink] PCI-7224 (adl_pci-7224), PCI-7248 (adl_pci-7248),
 *   PCI-7296 (adl_pci-7296),
 *   [Measurement Computing] PCI-DIO24 (cb_pci-dio24),
 *   PCI-DIO24H (cb_pci-dio24h), PCI-DIO48H (cb_pci-dio48h),
 *   PCI-DIO96H (cb_pci-dio96h),
 *   [National Instruments] PCI-DIO-96 (ni_pci-dio-96),
 *   PCI-DIO-96B (ni_pci-dio-96b), PXI-6508 (ni_pxi-6508),
 *   PCI-6503 (ni_pci-6503), PCI-6503B (ni_pci-6503b),
 *   PCI-6503X (ni_pci-6503x), PXI-6503 (ni_pxi-6503)
 * Author: H Hartley Sweeten <[email protected]>
 * Updated: Wed, 12 Sep 2012 11:52:01 -0700
 * Status: untested
 *
 * These boards have one or more 8255 digital I/O chips, each of which
 * is supported as a separate 24-channel DIO subdevice.
 *
 * Boards with 24 DIO channels (1 DIO subdevice):
 *
 *   PCI-7224, PCI-DIO24, PCI-DIO24H, PCI-6503, PCI-6503B, PCI-6503X,
 *   PXI-6503
 *
 * Boards with 48 DIO channels (2 DIO subdevices):
 *
 *   PCI-7248, PCI-DIO48H
 *
 * Boards with 96 DIO channels (4 DIO subdevices):
 *
 *   PCI-7296, PCI-DIO96H, PCI-DIO-96, PCI-DIO-96B, PXI-6508
 *
 * Some of these boards also have an 8254 programmable timer/counter
 * chip.  This chip is not currently supported by this driver.
 *
 * Interrupt support for these boards is also not currently supported.
 *
 * Configuration Options: not applicable, uses PCI auto config.
 */

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

enum pci_8255_boardid { … };

struct pci_8255_boardinfo { … };

static const struct pci_8255_boardinfo pci_8255_boards[] = …;

/* ripped from mite.h and mite_setup2() to avoid mite dependency */
#define MITE_IODWBSR …
#define WENAB …

static int pci_8255_mite_init(struct pci_dev *pcidev)
{ … }

static int pci_8255_auto_attach(struct comedi_device *dev,
				unsigned long context)
{ … }

static struct comedi_driver pci_8255_driver = …;

static int pci_8255_pci_probe(struct pci_dev *dev,
			      const struct pci_device_id *id)
{ … }

static const struct pci_device_id pci_8255_pci_table[] = …;
MODULE_DEVICE_TABLE(pci, pci_8255_pci_table);

static struct pci_driver pci_8255_pci_driver = …;
module_comedi_pci_driver(…);

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;