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Diffstat (limited to 'libcpu/arm/s3c24x0/rtc.c')
-rw-r--r--libcpu/arm/s3c24x0/rtc.c206
1 files changed, 103 insertions, 103 deletions
diff --git a/libcpu/arm/s3c24x0/rtc.c b/libcpu/arm/s3c24x0/rtc.c
index d0c80bce6b..653bb09f77 100644
--- a/libcpu/arm/s3c24x0/rtc.c
+++ b/libcpu/arm/s3c24x0/rtc.c
@@ -1,14 +1,14 @@
/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
- * 2009-04-26 yi.qiu first version
- * 2010-03-18 Gary Lee add functions such as GregorianDay
- * and rtc_time_to_tm
- * 2009-03-20 yi.qiu clean up
+ * 2009-04-26 yi.qiu first version
+ * 2010-03-18 Gary Lee add functions such as GregorianDay
+ * and rtc_time_to_tm
+ * 2009-03-20 yi.qiu clean up
*/
#include <rtthread.h>
@@ -17,50 +17,50 @@
// #define RTC_DEBUG
-#define RTC_ENABLE RTCCON |= 0x01; /*RTC read and write enable */
-#define RTC_DISABLE RTCCON &= ~0x01; /* RTC read and write disable */
-#define BCD2BIN(n) (((((n) >> 4) & 0x0F) * 10) + ((n) & 0x0F))
-#define BIN2BCD(n) ((((n) / 10) << 4) | ((n) % 10))
+#define RTC_ENABLE RTCCON |= 0x01; /*RTC read and write enable */
+#define RTC_DISABLE RTCCON &= ~0x01; /* RTC read and write disable */
+#define BCD2BIN(n) (((((n) >> 4) & 0x0F) * 10) + ((n) & 0x0F))
+#define BIN2BCD(n) ((((n) / 10) << 4) | ((n) % 10))
/**
* This function get rtc time
*/
void rt_hw_rtc_get(struct tm *ti)
{
- rt_uint8_t sec, min, hour, mday, wday, mon, year;
+ rt_uint8_t sec, min, hour, mday, wday, mon, year;
- /* enable access to RTC registers */
- RTCCON |= RTC_ENABLE;
+ /* enable access to RTC registers */
+ RTCCON |= RTC_ENABLE;
- /* read RTC registers */
- do
- {
- sec = BCDSEC;
- min = BCDMIN;
- hour = BCDHOUR;
- mday = BCDDATE;
- wday = BCDDAY;
- mon = BCDMON;
- year = BCDYEAR;
+ /* read RTC registers */
+ do
+ {
+ sec = BCDSEC;
+ min = BCDMIN;
+ hour = BCDHOUR;
+ mday = BCDDATE;
+ wday = BCDDAY;
+ mon = BCDMON;
+ year = BCDYEAR;
} while (sec != BCDSEC);
#ifdef RTC_DEBUG
- rt_kprintf("sec:%x min:%x hour:%x mday:%x wday:%x mon:%x year:%x\n",
- sec, min, hour, mday, wday, mon, year);
+ rt_kprintf("sec:%x min:%x hour:%x mday:%x wday:%x mon:%x year:%x\n",
+ sec, min, hour, mday, wday, mon, year);
#endif
- /* disable access to RTC registers */
- RTC_DISABLE
+ /* disable access to RTC registers */
+ RTC_DISABLE
- ti->tm_sec = BCD2BIN(sec & 0x7F);
- ti->tm_min = BCD2BIN(min & 0x7F);
- ti->tm_hour = BCD2BIN(hour & 0x3F);
- ti->tm_mday = BCD2BIN(mday & 0x3F);
- ti->tm_mon = BCD2BIN(mon & 0x1F);
- ti->tm_year = BCD2BIN(year);
- ti->tm_wday = BCD2BIN(wday & 0x07);
- ti->tm_yday = 0;
- ti->tm_isdst = 0;
+ ti->tm_sec = BCD2BIN(sec & 0x7F);
+ ti->tm_min = BCD2BIN(min & 0x7F);
+ ti->tm_hour = BCD2BIN(hour & 0x3F);
+ ti->tm_mday = BCD2BIN(mday & 0x3F);
+ ti->tm_mon = BCD2BIN(mon & 0x1F);
+ ti->tm_year = BCD2BIN(year);
+ ti->tm_wday = BCD2BIN(wday & 0x07);
+ ti->tm_yday = 0;
+ ti->tm_isdst = 0;
}
/**
@@ -68,32 +68,32 @@ void rt_hw_rtc_get(struct tm *ti)
*/
void rt_hw_rtc_set(struct tm *ti)
{
- rt_uint8_t sec, min, hour, mday, wday, mon, year;
+ rt_uint8_t sec, min, hour, mday, wday, mon, year;
- year = BIN2BCD(ti->tm_year);
- mon = BIN2BCD(ti->tm_mon);
- wday = BIN2BCD(ti->tm_wday);
- mday = BIN2BCD(ti->tm_mday);
- hour = BIN2BCD(ti->tm_hour);
- min = BIN2BCD(ti->tm_min);
- sec = BIN2BCD(ti->tm_sec);
+ year = BIN2BCD(ti->tm_year);
+ mon = BIN2BCD(ti->tm_mon);
+ wday = BIN2BCD(ti->tm_wday);
+ mday = BIN2BCD(ti->tm_mday);
+ hour = BIN2BCD(ti->tm_hour);
+ min = BIN2BCD(ti->tm_min);
+ sec = BIN2BCD(ti->tm_sec);
- /* enable access to RTC registers */
- RTC_ENABLE
+ /* enable access to RTC registers */
+ RTC_ENABLE
- do{
- /* write RTC registers */
- BCDSEC = sec;
- BCDMIN = min;
- BCDHOUR = hour;
- BCDDATE = mday;
- BCDDAY = wday;
- BCDMON = mon;
- BCDYEAR = year;
- }while (sec != BCDSEC);
-
- /* disable access to RTC registers */
- RTC_DISABLE
+ do{
+ /* write RTC registers */
+ BCDSEC = sec;
+ BCDMIN = min;
+ BCDHOUR = hour;
+ BCDDATE = mday;
+ BCDDAY = wday;
+ BCDMON = mon;
+ BCDYEAR = year;
+ }while (sec != BCDSEC);
+
+ /* disable access to RTC registers */
+ RTC_DISABLE
}
/**
@@ -101,85 +101,85 @@ void rt_hw_rtc_set(struct tm *ti)
*/
void rt_hw_rtc_reset (void)
{
- RTCCON = (RTCCON & ~0x06) | 0x08;
- RTCCON &= ~(0x08|0x01);
+ RTCCON = (RTCCON & ~0x06) | 0x08;
+ RTCCON &= ~(0x08|0x01);
}
static struct rt_device rtc;
static rt_err_t rtc_open(rt_device_t dev, rt_uint16_t oflag)
{
- RTC_ENABLE
- return RT_EOK;
+ RTC_ENABLE
+ return RT_EOK;
}
static rt_err_t rtc_close(rt_device_t dev)
{
- RTC_DISABLE
- return RT_EOK;
+ RTC_DISABLE
+ return RT_EOK;
}
static rt_size_t rtc_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
{
- return RT_EOK;
+ return RT_EOK;
}
static rt_err_t rtc_control(rt_device_t dev, int cmd, void *args)
{
- struct tm tm, *tm_ptr;
+ struct tm tm, *tm_ptr;
time_t *time;
- RT_ASSERT(dev != RT_NULL);
+ RT_ASSERT(dev != RT_NULL);
- time = (time_t *)args;
- switch (cmd)
- {
- case RT_DEVICE_CTRL_RTC_GET_TIME:
- /* read device */
- rt_hw_rtc_get(&tm);
- *((rt_time_t *)args) = mktime(&tm);
- break;
+ time = (time_t *)args;
+ switch (cmd)
+ {
+ case RT_DEVICE_CTRL_RTC_GET_TIME:
+ /* read device */
+ rt_hw_rtc_get(&tm);
+ *((rt_time_t *)args) = mktime(&tm);
+ break;
- case RT_DEVICE_CTRL_RTC_SET_TIME:
- tm_ptr = localtime(time);
- /* write device */
- rt_hw_rtc_set(tm_ptr);
- break;
- }
+ case RT_DEVICE_CTRL_RTC_SET_TIME:
+ tm_ptr = localtime(time);
+ /* write device */
+ rt_hw_rtc_set(tm_ptr);
+ break;
+ }
- return RT_EOK;
+ return RT_EOK;
}
void rt_hw_rtc_init(void)
{
- rtc.type = RT_Device_Class_RTC;
+ rtc.type = RT_Device_Class_RTC;
+
+ /* register rtc device */
+ rtc.init = RT_NULL;
+ rtc.open = rtc_open;
+ rtc.close = rtc_close;
+ rtc.read = rtc_read;
+ rtc.write = RT_NULL;
+ rtc.control = rtc_control;
+
+ /* no private */
+ rtc.user_data = RT_NULL;
- /* register rtc device */
- rtc.init = RT_NULL;
- rtc.open = rtc_open;
- rtc.close = rtc_close;
- rtc.read = rtc_read;
- rtc.write = RT_NULL;
- rtc.control = rtc_control;
-
- /* no private */
- rtc.user_data = RT_NULL;
-
- rt_device_register(&rtc, "rtc", RT_DEVICE_FLAG_RDWR);
+ rt_device_register(&rtc, "rtc", RT_DEVICE_FLAG_RDWR);
}
#ifdef RT_USING_FINSH
#include <finsh.h>
void list_date()
{
- time_t time;
- rt_device_t device;
+ time_t time;
+ rt_device_t device;
- device = rt_device_find("rtc");
- if (device != RT_NULL)
- {
- rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time);
+ device = rt_device_find("rtc");
+ if (device != RT_NULL)
+ {
+ rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time);
- rt_kprintf("%d, %s\n", time, ctime(&time));
- }
+ rt_kprintf("%d, %s\n", time, ctime(&time));
+ }
}
FINSH_FUNCTION_EXPORT(list_date, list date);
#endif
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