linux/drivers/input/serio/apbps2.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2013 Aeroflex Gaisler
 *
 * This driver supports the APBPS2 PS/2 core available in the GRLIB
 * VHDL IP core library.
 *
 * Full documentation of the APBPS2 core can be found here:
 * http://www.gaisler.com/products/grlib/grip.pdf
 *
 * See "Documentation/devicetree/bindings/input/ps2keyb-mouse-apbps2.txt" for
 * information on open firmware properties.
 *
 * Contributors: Daniel Hellstrom <[email protected]>
 */
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/serio.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/io.h>

struct apbps2_regs { … };

#define APBPS2_STATUS_DR …
#define APBPS2_STATUS_PE …
#define APBPS2_STATUS_FE …
#define APBPS2_STATUS_KI …
#define APBPS2_STATUS_RF …
#define APBPS2_STATUS_TF …
#define APBPS2_STATUS_TCNT …
#define APBPS2_STATUS_RCNT …

#define APBPS2_CTRL_RE …
#define APBPS2_CTRL_TE …
#define APBPS2_CTRL_RI …
#define APBPS2_CTRL_TI …

struct apbps2_priv { … };

static int apbps2_idx;

static irqreturn_t apbps2_isr(int irq, void *dev_id)
{ … }

static int apbps2_write(struct serio *io, unsigned char val)
{ … }

static int apbps2_open(struct serio *io)
{ … }

static void apbps2_close(struct serio *io)
{ … }

/* Initialize one APBPS2 PS/2 core */
static int apbps2_of_probe(struct platform_device *ofdev)
{ … }

static void apbps2_of_remove(struct platform_device *of_dev)
{ … }

static const struct of_device_id apbps2_of_match[] = …;

MODULE_DEVICE_TABLE(of, apbps2_of_match);

static struct platform_driver apbps2_of_driver = …;

module_platform_driver(…) …;

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