// SPDX-License-Identifier: GPL-2.0-or-later /* * An RTC driver for Allwinner A10/A20 * * Copyright (c) 2013, Carlo Caione <[email protected]> */ #include <linux/delay.h> #include <linux/err.h> #include <linux/fs.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/rtc.h> #include <linux/types.h> #define SUNXI_LOSC_CTRL … #define SUNXI_LOSC_CTRL_RTC_HMS_ACC … #define SUNXI_LOSC_CTRL_RTC_YMD_ACC … #define SUNXI_RTC_YMD … #define SUNXI_RTC_HMS … #define SUNXI_ALRM_DHMS … #define SUNXI_ALRM_EN … #define SUNXI_ALRM_EN_CNT_EN … #define SUNXI_ALRM_IRQ_EN … #define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN … #define SUNXI_ALRM_IRQ_STA … #define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND … #define SUNXI_MASK_DH … #define SUNXI_MASK_SM … #define SUNXI_MASK_M … #define SUNXI_MASK_LY … #define SUNXI_MASK_D … #define SUNXI_MASK_M … #define SUNXI_GET(x, mask, shift) … #define SUNXI_SET(x, mask, shift) … /* * Get date values */ #define SUNXI_DATE_GET_DAY_VALUE(x) … #define SUNXI_DATE_GET_MON_VALUE(x) … #define SUNXI_DATE_GET_YEAR_VALUE(x, mask) … /* * Get time values */ #define SUNXI_TIME_GET_SEC_VALUE(x) … #define SUNXI_TIME_GET_MIN_VALUE(x) … #define SUNXI_TIME_GET_HOUR_VALUE(x) … /* * Get alarm values */ #define SUNXI_ALRM_GET_SEC_VALUE(x) … #define SUNXI_ALRM_GET_MIN_VALUE(x) … #define SUNXI_ALRM_GET_HOUR_VALUE(x) … /* * Set date values */ #define SUNXI_DATE_SET_DAY_VALUE(x) … #define SUNXI_DATE_SET_MON_VALUE(x) … #define SUNXI_DATE_SET_YEAR_VALUE(x, mask) … #define SUNXI_LEAP_SET_VALUE(x, shift) … /* * Set time values */ #define SUNXI_TIME_SET_SEC_VALUE(x) … #define SUNXI_TIME_SET_MIN_VALUE(x) … #define SUNXI_TIME_SET_HOUR_VALUE(x) … /* * Set alarm values */ #define SUNXI_ALRM_SET_SEC_VALUE(x) … #define SUNXI_ALRM_SET_MIN_VALUE(x) … #define SUNXI_ALRM_SET_HOUR_VALUE(x) … #define SUNXI_ALRM_SET_DAY_VALUE(x) … /* * Time unit conversions */ #define SEC_IN_MIN … #define SEC_IN_HOUR … #define SEC_IN_DAY … /* * The year parameter passed to the driver is usually an offset relative to * the year 1900. This macro is used to convert this offset to another one * relative to the minimum year allowed by the hardware. */ #define SUNXI_YEAR_OFF(x) … /* * min and max year are arbitrary set considering the limited range of the * hardware register field */ struct sunxi_rtc_data_year { … }; static const struct sunxi_rtc_data_year data_year_param[] = …; struct sunxi_rtc_dev { … }; static irqreturn_t sunxi_rtc_alarmirq(int irq, void *id) { … } static void sunxi_rtc_setaie(unsigned int to, struct sunxi_rtc_dev *chip) { … } static int sunxi_rtc_getalarm(struct device *dev, struct rtc_wkalrm *wkalrm) { … } static int sunxi_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) { … } static int sunxi_rtc_setalarm(struct device *dev, struct rtc_wkalrm *wkalrm) { … } static int sunxi_rtc_wait(struct sunxi_rtc_dev *chip, int offset, unsigned int mask, unsigned int ms_timeout) { … } static int sunxi_rtc_settime(struct device *dev, struct rtc_time *rtc_tm) { … } static int sunxi_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { … } static const struct rtc_class_ops sunxi_rtc_ops = …; static const struct of_device_id sunxi_rtc_dt_ids[] = …; MODULE_DEVICE_TABLE(of, sunxi_rtc_dt_ids); static int sunxi_rtc_probe(struct platform_device *pdev) { … } static struct platform_driver sunxi_rtc_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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