linux/drivers/input/keyboard/sh_keysc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * SuperH KEYSC Keypad Driver
 *
 * Copyright (C) 2008 Magnus Damm
 *
 * Based on gpio_keys.c, Copyright 2005 Phil Blundell
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/bitmap.h>
#include <linux/pm_runtime.h>
#include <linux/io.h>
#include <linux/slab.h>

static const struct { … } sh_keysc_mode[] = …;

struct sh_keysc_priv { … };

#define KYCR1 …
#define KYCR2 …
#define KYINDR …
#define KYOUTDR …

#define KYCR2_IRQ_LEVEL …
#define KYCR2_IRQ_DISABLED …

static unsigned long sh_keysc_read(struct sh_keysc_priv *p, int reg_nr)
{ … }

static void sh_keysc_write(struct sh_keysc_priv *p, int reg_nr,
			   unsigned long value)
{ … }

static void sh_keysc_level_mode(struct sh_keysc_priv *p,
				unsigned long keys_set)
{ … }

static void sh_keysc_map_dbg(struct device *dev, unsigned long *map,
			     const char *str)
{ … }

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

static int sh_keysc_probe(struct platform_device *pdev)
{ … }

static void sh_keysc_remove(struct platform_device *pdev)
{ … }

static int sh_keysc_suspend(struct device *dev)
{ … }

static int sh_keysc_resume(struct device *dev)
{ … }

static DEFINE_SIMPLE_DEV_PM_OPS(sh_keysc_dev_pm_ops,
				sh_keysc_suspend, sh_keysc_resume);

static struct platform_driver sh_keysc_device_driver = …;
module_platform_driver(…) …;

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