linux/drivers/watchdog/rdc321x_wdt.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * RDC321x watchdog driver
 *
 * Copyright (C) 2007-2010 Florian Fainelli <[email protected]>
 *
 * This driver is highly inspired from the cpu5_wdt driver
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/miscdevice.h>
#include <linux/fs.h>
#include <linux/ioport.h>
#include <linux/timer.h>
#include <linux/completion.h>
#include <linux/jiffies.h>
#include <linux/platform_device.h>
#include <linux/watchdog.h>
#include <linux/io.h>
#include <linux/uaccess.h>
#include <linux/mfd/rdc321x.h>

#define RDC_WDT_MASK …
#define RDC_WDT_EN …
#define RDC_WDT_WTI …
#define RDC_WDT_RST …
#define RDC_WDT_WIF …
#define RDC_WDT_IRT …
#define RDC_WDT_CNT …

#define RDC_CLS_TMR …

#define RDC_WDT_INTERVAL …

static int ticks = …;

/* some device data */

static struct { … } rdc321x_wdt_device;

/* generic helper functions */

static void rdc321x_wdt_trigger(struct timer_list *unused)
{ … }

static void rdc321x_wdt_reset(void)
{ … }

static void rdc321x_wdt_start(void)
{ … }

static int rdc321x_wdt_stop(void)
{ … }

/* filesystem operations */
static int rdc321x_wdt_open(struct inode *inode, struct file *file)
{ … }

static int rdc321x_wdt_release(struct inode *inode, struct file *file)
{ … }

static long rdc321x_wdt_ioctl(struct file *file, unsigned int cmd,
				unsigned long arg)
{ … }

static ssize_t rdc321x_wdt_write(struct file *file, const char __user *buf,
				size_t count, loff_t *ppos)
{ … }

static const struct file_operations rdc321x_wdt_fops = …;

static struct miscdevice rdc321x_wdt_misc = …;

static int rdc321x_wdt_probe(struct platform_device *pdev)
{ … }

static void rdc321x_wdt_remove(struct platform_device *pdev)
{ … }

static struct platform_driver rdc321x_wdt_driver = …;

module_platform_driver(…) …;

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