linux/drivers/rtc/rtc-ds1553.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * An rtc driver for the Dallas DS1553
 *
 * Copyright (C) 2006 Atsushi Nemoto <[email protected]>
 */

#include <linux/bcd.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/gfp.h>
#include <linux/delay.h>
#include <linux/jiffies.h>
#include <linux/interrupt.h>
#include <linux/rtc.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/module.h>

#define RTC_REG_SIZE …
#define RTC_OFFSET …

#define RTC_FLAGS …
#define RTC_SECONDS_ALARM …
#define RTC_MINUTES_ALARM …
#define RTC_HOURS_ALARM …
#define RTC_DATE_ALARM …
#define RTC_INTERRUPTS …
#define RTC_WATCHDOG …
#define RTC_CONTROL …
#define RTC_CENTURY …
#define RTC_SECONDS …
#define RTC_MINUTES …
#define RTC_HOURS …
#define RTC_DAY …
#define RTC_DATE …
#define RTC_MONTH …
#define RTC_YEAR …

#define RTC_CENTURY_MASK …
#define RTC_SECONDS_MASK …
#define RTC_DAY_MASK …

/* Bits in the Control/Century register */
#define RTC_WRITE …
#define RTC_READ …

/* Bits in the Seconds register */
#define RTC_STOP …

/* Bits in the Flags register */
#define RTC_FLAGS_AF …
#define RTC_FLAGS_BLF …

/* Bits in the Interrupts register */
#define RTC_INTS_AE …

struct rtc_plat_data { … };

static int ds1553_rtc_set_time(struct device *dev, struct rtc_time *tm)
{ … }

static int ds1553_rtc_read_time(struct device *dev, struct rtc_time *tm)
{ … }

static void ds1553_rtc_update_alarm(struct rtc_plat_data *pdata)
{ … }

static int ds1553_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{ … }

static int ds1553_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{ … }

static irqreturn_t ds1553_rtc_interrupt(int irq, void *dev_id)
{ … }

static int ds1553_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
{ … }

static const struct rtc_class_ops ds1553_rtc_ops = …;

static int ds1553_nvram_read(void *priv, unsigned int pos, void *val,
			     size_t bytes)
{ … }

static int ds1553_nvram_write(void *priv, unsigned int pos, void *val,
			      size_t bytes)
{ … }

static int ds1553_rtc_probe(struct platform_device *pdev)
{ … }

/* work with hotplug and coldplug */
MODULE_ALIAS(…) …;

static struct platform_driver ds1553_rtc_driver = …;

module_platform_driver(…) …;

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