mirror of
https://github.com/RT-Thread/rt-thread.git
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update rtc driver
add webserver support git-svn-id: https://rt-thread.googlecode.com/svn/trunk@295 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
qiuyiuestc
@@ -12,133 +12,78 @@
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* 2009-04-26 yi.qiu first version
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*/
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#include "rtc.h"
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#include <rtthread.h>
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#include <time.h>
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#include <s3c24x0.h>
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/**
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* This function access to rtc
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*/
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rt_inline void rt_hw_rtc_access(int a)
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{
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switch (a)
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{
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case RTC_ENABLE:
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RTCCON |= 0x01;
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break;
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case RTC_DISABLE:
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RTCCON &= ~0x01;
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break;
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}
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}
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rt_inline rt_uint32_t BCD2BIN(rt_uint8_t n)
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{
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return ((((n >> 4) & 0x0F) * 10) + (n & 0x0F));
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}
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rt_inline rt_uint8_t BIN2BCD(rt_uint32_t n)
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{
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return (((n / 10) << 4) | (n % 10));
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}
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#define BCD2BIN(n) (((((n) >> 4) & 0x0F) * 10) + ((n) & 0x0F))
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#define BIN2BCD(n) ((((n) / 10) << 4) | ((n) % 10))
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/**
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* This function get rtc time
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*/
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void rt_hw_rtc_get (struct rtc_time *tmp)
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void rt_hw_rtc_get(struct tm *ti)
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{
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rt_uint8_t sec, min, hour, mday, wday, mon, year;
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rt_uint8_t a_sec,a_min, a_hour, a_date, a_mon, a_year, a_armed;
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/* enable access to RTC registers */
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rt_hw_rtc_access(RTC_ENABLE);
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RTCCON |= 0x01;
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/* read RTC registers */
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do
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{
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sec = BCDSEC;
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min = BCDMIN;
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hour = BCDHOUR;
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mday = BCDDATE;
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wday = BCDDAY;
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mon = BCDMON;
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year = BCDYEAR;
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sec = BCDSEC;
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min = BCDMIN;
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hour = BCDHOUR;
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mday = BCDDATE;
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wday = BCDDAY;
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mon = BCDMON;
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year = BCDYEAR;
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} while (sec != BCDSEC);
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/* read ALARM registers */
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a_sec = ALMSEC;
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a_min = ALMMIN;
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a_hour = ALMHOUR;
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a_date = ALMDATE;
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a_mon = ALMMON;
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a_year = ALMYEAR;
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a_armed = RTCALM;
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/* disable access to RTC registers */
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rt_hw_rtc_access(RTC_DISABLE);
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RTCCON &= ~0x01;
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#ifdef RTC_DEBUG
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rt_kprintf ( "Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
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"hr: %02x min: %02x sec: %02x\n",
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year, mon, mday, wday,
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hour, min, sec);
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rt_kprintf ( "Alarms: %02x: year: %02x month: %02x date: %02x hour: %02x min: %02x sec: %02x\n",
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a_armed,
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a_year, a_mon, a_date,
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a_hour, a_min, a_sec);
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#endif
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tmp->tm_sec = BCD2BIN(sec & 0x7F);
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tmp->tm_min = BCD2BIN(min & 0x7F);
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tmp->tm_hour = BCD2BIN(hour & 0x3F);
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tmp->tm_mday = BCD2BIN(mday & 0x3F);
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tmp->tm_mon = BCD2BIN(mon & 0x1F);
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tmp->tm_year = BCD2BIN(year);
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tmp->tm_wday = BCD2BIN(wday & 0x07);
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if(tmp->tm_year < 70) tmp->tm_year += 2000;
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else tmp->tm_year += 1900;
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tmp->tm_yday = 0;
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tmp->tm_isdst = 0;
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#ifdef RTC_DEBUG
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rt_kprintf ( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
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tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
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tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
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#endif
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ti->tm_sec = BCD2BIN(sec & 0x7F);
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ti->tm_min = BCD2BIN(min & 0x7F);
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ti->tm_hour = BCD2BIN(hour & 0x3F);
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ti->tm_mday = BCD2BIN(mday & 0x3F);
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ti->tm_mon = BCD2BIN(mon & 0x1F);
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ti->tm_year = BCD2BIN(year);
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ti->tm_wday = BCD2BIN(wday & 0x07);
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ti->tm_yday = 0;
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ti->tm_isdst = 0;
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}
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/**
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* This function set rtc time
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*/
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void rt_hw_rtc_set (struct rtc_time *tmp)
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void rt_hw_rtc_set(struct tm *ti)
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{
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rt_uint8_t sec, min, hour, mday, wday, mon, year;
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#ifdef RTC_DEBUG
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rt_kprintf ( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
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tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
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tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
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#endif
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year = BIN2BCD(tmp->tm_year % 100);
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mon = BIN2BCD(tmp->tm_mon);
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wday = BIN2BCD(tmp->tm_wday);
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mday = BIN2BCD(tmp->tm_mday);
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hour = BIN2BCD(tmp->tm_hour);
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min = BIN2BCD(tmp->tm_min);
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sec = BIN2BCD(tmp->tm_sec);
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year = BIN2BCD(ti->tm_year);
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mon = BIN2BCD(ti->tm_mon);
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wday = BIN2BCD(ti->tm_wday);
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mday = BIN2BCD(ti->tm_mday);
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hour = BIN2BCD(ti->tm_hour);
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min = BIN2BCD(ti->tm_min);
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sec = BIN2BCD(ti->tm_sec);
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/* enable access to RTC registers */
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rt_hw_rtc_access(RTC_ENABLE);
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RTCCON |= 0x01;
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/* write RTC registers */
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BCDSEC = sec;
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BCDMIN = min;
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BCDHOUR = hour;
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BCDDATE = mday;
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BCDDAY = wday;
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BCDMON = mon;
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BCDYEAR = year;
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BCDSEC = sec;
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BCDMIN = min;
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BCDHOUR = hour;
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BCDDATE = mday;
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BCDDAY = wday;
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BCDMON = mon;
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BCDYEAR = year;
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/* disable access to RTC registers */
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rt_hw_rtc_access(RTC_DISABLE);
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RTCCON &= ~0x01;
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}
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/**
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@@ -150,3 +95,122 @@ void rt_hw_rtc_reset (void)
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RTCCON &= ~(0x08|0x01);
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}
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static struct rt_device rtc;
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static rt_err_t rt_rtc_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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static rt_size_t rt_rtc_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
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{
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return 0;
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}
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static rt_err_t rt_rtc_control(rt_device_t dev, rt_uint8_t cmd, void *args)
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{
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struct tm* ti;
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RT_ASSERT(dev != RT_NULL);
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ti = (struct tm*)args;
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switch (cmd)
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{
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case RT_DEVICE_CTRL_RTC_GET_TIME:
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/* read device */
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rt_hw_rtc_get(ti);
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break;
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case RT_DEVICE_CTRL_RTC_SET_TIME:
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/* write device */
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rt_hw_rtc_set(ti);
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break;
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}
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return RT_EOK;
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}
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void rt_hw_rtc_init(void)
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{
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rtc.type = RT_Device_Class_RTC;
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/* register rtc device */
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rtc.init = RT_NULL;
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rtc.open = rt_rtc_open;
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rtc.close = RT_NULL;
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rtc.read = rt_rtc_read;
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rtc.write = RT_NULL;
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rtc.control = rt_rtc_control;
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/* no private */
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rtc.private = RT_NULL;
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rt_device_register(&rtc, "rtc", RT_DEVICE_FLAG_RDWR);
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return;
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}
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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time_t time(time_t* t)
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{
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rt_device_t device;
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struct tm ti;
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time_t time;
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device = rt_device_find("rtc");
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if (device != RT_NULL)
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{
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rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &ti);
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if (t != RT_NULL)
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{
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time = mktime(&ti);
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*t = time;
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}
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}
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return time;
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}
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void set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day)
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{
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struct tm ti;
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rt_device_t device;
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device = rt_device_find("rtc");
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if (device != RT_NULL)
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{
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rt_rtc_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &ti);
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ti.tm_year = year - 1900;
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ti.tm_mon = month - 1;
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ti.tm_mday = day;
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rt_rtc_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &ti);
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}
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}
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FINSH_FUNCTION_EXPORT(set_date, set date)
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void set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second)
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{
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struct tm ti;
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rt_device_t device;
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device = rt_device_find("rtc");
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if (device != RT_NULL)
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{
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rt_rtc_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &ti);
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ti.tm_hour = hour;
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ti.tm_min = minute;
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ti.tm_sec = second;
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rt_rtc_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &ti);
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}
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}
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FINSH_FUNCTION_EXPORT(set_time, set second)
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void list_date()
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{
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time_t now;
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time(&now);
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rt_kprintf("%s\n", ctime(&now));
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}
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FINSH_FUNCTION_EXPORT(list_date, set date)
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#endif
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