linux/drivers/rtc/rtc-stk17ta8.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * A RTC driver for the Simtek STK17TA8
 *
 * By Thomas Hommel <[email protected]>
 *
 * Based on the DS1553 driver from
 * 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_CENTURY …
#define RTC_SECONDS_ALARM …
#define RTC_MINUTES_ALARM …
#define RTC_HOURS_ALARM …
#define RTC_DATE_ALARM …
#define RTC_INTERRUPTS …
#define RTC_WATCHDOG …
#define RTC_CALIBRATION …
#define RTC_SECONDS …
#define RTC_MINUTES …
#define RTC_HOURS …
#define RTC_DAY …
#define RTC_DATE …
#define RTC_MONTH …
#define RTC_YEAR …

#define RTC_SECONDS_MASK …
#define RTC_DAY_MASK …
#define RTC_CAL_MASK …

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

/* Bits in the Flags register */
#define RTC_FLAGS_AF …
#define RTC_FLAGS_PF …
#define RTC_WRITE …
#define RTC_READ …

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

struct rtc_plat_data { … };

static int stk17ta8_rtc_set_time(struct device *dev, struct rtc_time *tm)
{ … }

static int stk17ta8_rtc_read_time(struct device *dev, struct rtc_time *tm)
{ … }

static void stk17ta8_rtc_update_alarm(struct rtc_plat_data *pdata)
{ … }

static int stk17ta8_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{ … }

static int stk17ta8_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{ … }

static irqreturn_t stk17ta8_rtc_interrupt(int irq, void *dev_id)
{ … }

static int stk17ta8_rtc_alarm_irq_enable(struct device *dev,
	unsigned int enabled)
{ … }

static const struct rtc_class_ops stk17ta8_rtc_ops = …;

static int stk17ta8_nvram_read(void *priv, unsigned int pos, void *val,
			       size_t bytes)
{ … }

static int stk17ta8_nvram_write(void *priv, unsigned int pos, void *val,
				size_t bytes)
{ … }

static int stk17ta8_rtc_probe(struct platform_device *pdev)
{ … }

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

static struct platform_driver stk17ta8_rtc_driver = …;

module_platform_driver(…) …;

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