355 lines
9.9 KiB
C
355 lines
9.9 KiB
C
/**************************************************************************//**
|
|
*
|
|
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2020-02-10 klcheng First version
|
|
*
|
|
******************************************************************************/
|
|
#include <rtconfig.h>
|
|
|
|
#if defined (BSP_USING_RTC)
|
|
|
|
#include <rtdevice.h>
|
|
#include <sys/time.h>
|
|
#include "NuMicro.h"
|
|
|
|
/* Private define ---------------------------------------------------------------*/
|
|
|
|
/* convert the real year and month value to the format of struct tm. */
|
|
#define CONV_TO_TM_YEAR(year) ((year) - 1900)
|
|
#define CONV_TO_TM_MON(mon) ((mon) - 1)
|
|
|
|
/* convert the tm_year and tm_mon from struct tm to the real value. */
|
|
#define CONV_FROM_TM_YEAR(tm_year) ((tm_year) + 1900)
|
|
#define CONV_FROM_TM_MON(tm_mon) ((tm_mon) + 1)
|
|
|
|
/* rtc date upper bound reaches the year of 2099. */
|
|
#define RTC_TM_UPPER_BOUND \
|
|
{ .tm_year = CONV_TO_TM_YEAR(2099), \
|
|
.tm_mon = CONV_TO_TM_MON(12), \
|
|
.tm_mday = 31, \
|
|
.tm_hour = 23, \
|
|
.tm_min = 59, \
|
|
.tm_sec = 59, \
|
|
}
|
|
|
|
/* rtc date lower bound reaches the year of 2000. */
|
|
#define RTC_TM_LOWER_BOUND \
|
|
{ .tm_year = CONV_TO_TM_YEAR(2000), \
|
|
.tm_mon = CONV_TO_TM_MON(1), \
|
|
.tm_mday = 1, \
|
|
.tm_hour = 0, \
|
|
.tm_min = 0, \
|
|
.tm_sec = 0, \
|
|
}
|
|
|
|
/* Private typedef --------------------------------------------------------------*/
|
|
|
|
/* Private functions ------------------------------------------------------------*/
|
|
static rt_err_t nu_rtc_control(rt_device_t dev, int cmd, void *args);
|
|
|
|
#if defined (NU_RTC_SUPPORT_IO_RW)
|
|
static rt_size_t nu_rtc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
|
|
static rt_size_t nu_rtc_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size);
|
|
#endif
|
|
|
|
static rt_err_t nu_rtc_is_date_valid(const time_t *const t);
|
|
static void nu_rtc_init(void);
|
|
|
|
#if defined(RT_USING_ALARM)
|
|
static void nu_rtc_alarm_reset(void);
|
|
#endif
|
|
|
|
/* Public functions -------------------------------------------------------------*/
|
|
#if defined (NU_RTC_SUPPORT_MSH_CMD)
|
|
extern rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day);
|
|
extern rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second);
|
|
#endif
|
|
|
|
/* Private variables ------------------------------------------------------------*/
|
|
static struct rt_device device_rtc;
|
|
|
|
|
|
static void nu_rtc_init(void)
|
|
{
|
|
/* hw rtc initialise */
|
|
RTC_Open(NULL);
|
|
RTC_DisableInt(RTC_INTEN_ALMIEN_Msk | RTC_INTEN_TICKIEN_Msk | RTC_INTEN_TAMP0IEN_Msk |
|
|
RTC_INTEN_TAMP1IEN_Msk | RTC_INTEN_TAMP2IEN_Msk | RTC_INTEN_TAMP3IEN_Msk |
|
|
RTC_INTEN_TAMP4IEN_Msk | RTC_INTEN_TAMP5IEN_Msk);
|
|
|
|
#if defined(RT_USING_ALARM)
|
|
|
|
nu_rtc_alarm_reset();
|
|
RTC_EnableInt(RTC_INTEN_ALMIEN_Msk);
|
|
NVIC_EnableIRQ(RTC_IRQn);
|
|
#endif
|
|
}
|
|
|
|
|
|
#if defined(RT_USING_ALARM)
|
|
/* Reset alarm settings to avoid the unwanted values remain in rtc registers. */
|
|
static void nu_rtc_alarm_reset(void)
|
|
{
|
|
S_RTC_TIME_DATA_T alarm;
|
|
|
|
/* Reset alarm time and calendar. */
|
|
alarm.u32Year = RTC_YEAR2000;
|
|
alarm.u32Month = 0;
|
|
alarm.u32Day = 0;
|
|
alarm.u32Hour = 0;
|
|
alarm.u32Minute = 0;
|
|
alarm.u32Second = 0;
|
|
alarm.u32TimeScale = RTC_CLOCK_24;
|
|
|
|
RTC_SetAlarmDateAndTime(&alarm);
|
|
|
|
/* Reset alarm time mask and calendar mask. */
|
|
RTC_SetAlarmDateMask(0, 0, 0, 0, 0, 0);
|
|
RTC_SetAlarmTimeMask(0, 0, 0, 0, 0, 0);
|
|
|
|
/* Clear alarm flag for safe */
|
|
RTC_CLEAR_ALARM_INT_FLAG();
|
|
}
|
|
#endif
|
|
|
|
|
|
/* rtc device driver initialise. */
|
|
int rt_hw_rtc_init(void)
|
|
{
|
|
rt_err_t ret;
|
|
|
|
nu_rtc_init();
|
|
|
|
/* register rtc device IO operations */
|
|
device_rtc.type = RT_Device_Class_RTC;
|
|
device_rtc.init = NULL;
|
|
device_rtc.open = NULL;
|
|
device_rtc.close = NULL;
|
|
device_rtc.control = nu_rtc_control;
|
|
|
|
#if defined (NU_RTC_SUPPORT_IO_RW)
|
|
device_rtc.read = nu_rtc_read;
|
|
device_rtc.write = nu_rtc_write;
|
|
#else
|
|
device_rtc.read = NULL;
|
|
device_rtc.write = NULL;
|
|
#endif
|
|
|
|
device_rtc.user_data = RT_NULL;
|
|
device_rtc.rx_indicate = RT_NULL;
|
|
device_rtc.tx_complete = RT_NULL;
|
|
|
|
ret = rt_device_register(&device_rtc, "rtc", RT_DEVICE_FLAG_RDWR);
|
|
|
|
return (int)ret;
|
|
}
|
|
INIT_BOARD_EXPORT(rt_hw_rtc_init);
|
|
|
|
|
|
#if defined (NU_RTC_SUPPORT_IO_RW)
|
|
/* Register rt-thread device.read() entry. */
|
|
static rt_size_t nu_rtc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
|
|
{
|
|
(void) pos;
|
|
nu_rtc_control(dev, RT_DEVICE_CTRL_RTC_GET_TIME, buffer);
|
|
|
|
return size;
|
|
}
|
|
#endif
|
|
|
|
|
|
#if defined (NU_RTC_SUPPORT_IO_RW)
|
|
/* Register rt-thread device.write() entry. */
|
|
static rt_size_t nu_rtc_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
|
|
{
|
|
(void) pos;
|
|
nu_rtc_control(dev, RT_DEVICE_CTRL_RTC_SET_TIME, (void *)buffer);
|
|
|
|
return size;
|
|
}
|
|
#endif
|
|
|
|
|
|
static rt_err_t nu_rtc_is_date_valid(const time_t *const t)
|
|
{
|
|
static struct tm tm_upper = RTC_TM_UPPER_BOUND;
|
|
static struct tm tm_lower = RTC_TM_LOWER_BOUND;
|
|
static time_t t_upper, t_lower;
|
|
static rt_bool_t initialised = RT_FALSE;
|
|
|
|
if (!initialised)
|
|
{
|
|
t_upper = timegm((struct tm *)&tm_upper);
|
|
t_lower = timegm((struct tm *)&tm_lower);
|
|
initialised = RT_TRUE;
|
|
}
|
|
|
|
/* check the date is supported by rtc. */
|
|
if ((*t > t_upper) || (*t < t_lower))
|
|
return -(RT_EINVAL);
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
|
|
/* Register rt-thread device.control() entry. */
|
|
static rt_err_t nu_rtc_control(rt_device_t dev, int cmd, void *args)
|
|
{
|
|
struct tm tm_out, *tm_in;
|
|
time_t *time;
|
|
S_RTC_TIME_DATA_T hw_time;
|
|
|
|
#if defined(RT_USING_ALARM)
|
|
|
|
struct rt_rtc_wkalarm *wkalarm;
|
|
S_RTC_TIME_DATA_T hw_alarm;
|
|
#endif
|
|
|
|
if ((dev == NULL) || (args == NULL))
|
|
return -(RT_EINVAL);
|
|
|
|
switch (cmd)
|
|
{
|
|
case RT_DEVICE_CTRL_RTC_GET_TIME:
|
|
|
|
time = (time_t *)args;
|
|
RTC_GetDateAndTime(&hw_time);
|
|
|
|
tm_out.tm_year = CONV_TO_TM_YEAR(hw_time.u32Year);
|
|
tm_out.tm_mon = CONV_TO_TM_MON(hw_time.u32Month);
|
|
tm_out.tm_mday = hw_time.u32Day;
|
|
tm_out.tm_hour = hw_time.u32Hour;
|
|
tm_out.tm_min = hw_time.u32Minute;
|
|
tm_out.tm_sec = hw_time.u32Second;
|
|
*time = timegm(&tm_out);
|
|
break;
|
|
|
|
case RT_DEVICE_CTRL_RTC_SET_TIME:
|
|
|
|
time = (time_t *) args;
|
|
tm_in = gmtime(time);
|
|
|
|
if (nu_rtc_is_date_valid(time) != RT_EOK)
|
|
return RT_ERROR;
|
|
|
|
hw_time.u32Year = CONV_FROM_TM_YEAR(tm_in->tm_year);
|
|
hw_time.u32Month = CONV_FROM_TM_MON(tm_in->tm_mon);
|
|
hw_time.u32Day = tm_in->tm_mday;
|
|
hw_time.u32Hour = tm_in->tm_hour;
|
|
hw_time.u32Minute = tm_in->tm_min;
|
|
hw_time.u32Second = tm_in->tm_sec;
|
|
hw_time.u32TimeScale = RTC_CLOCK_24;
|
|
hw_time.u32AmPm = 0;
|
|
|
|
RTC_SetDateAndTime(&hw_time);
|
|
break;
|
|
|
|
#if defined(RT_USING_ALARM)
|
|
case RT_DEVICE_CTRL_RTC_GET_ALARM:
|
|
|
|
wkalarm = (struct rt_rtc_wkalarm *) args;
|
|
RTC_GetAlarmDateAndTime(&hw_alarm);
|
|
|
|
wkalarm->tm_hour = hw_alarm.u32Hour;
|
|
wkalarm->tm_min = hw_alarm.u32Minute;
|
|
wkalarm->tm_sec = hw_alarm.u32Second;
|
|
break;
|
|
|
|
case RT_DEVICE_CTRL_RTC_SET_ALARM:
|
|
|
|
wkalarm = (struct rt_rtc_wkalarm *) args;
|
|
hw_alarm.u32Hour = wkalarm->tm_hour;
|
|
hw_alarm.u32Minute = wkalarm->tm_min;
|
|
hw_alarm.u32Second = wkalarm->tm_sec;
|
|
|
|
RTC_SetAlarmDateMask(1, 1, 1, 1, 1, 1);
|
|
RTC_SetAlarmDateAndTime(&hw_alarm);
|
|
break;
|
|
|
|
default:
|
|
return -(RT_EINVAL);
|
|
#endif
|
|
}
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
|
|
#if defined (NU_RTC_SUPPORT_MSH_CMD)
|
|
|
|
/* Support "rtc_det_date" command line in msh mode */
|
|
static rt_err_t msh_rtc_set_date(int argc, char **argv)
|
|
{
|
|
rt_uint32_t index, len, arg[3];
|
|
|
|
rt_memset(arg, 0, sizeof(arg));
|
|
len = (argc >= 4) ? 4 : argc;
|
|
|
|
/* The date information stored in argv is represented by the following order :
|
|
argv[0,1,2,3] = [cmd, year, month, day] */
|
|
for (index = 0; index < (len - 1); index ++)
|
|
{
|
|
arg[index] = atol(argv[index + 1]);
|
|
}
|
|
|
|
return set_date(arg[0], arg[1], arg[2]);
|
|
}
|
|
MSH_CMD_EXPORT_ALIAS(msh_rtc_set_date, rtc_set_date, e.g: rtc_set_date 2020 1 20);
|
|
#endif
|
|
|
|
|
|
#if defined (NU_RTC_SUPPORT_MSH_CMD)
|
|
|
|
/* Support "rtc_det_time" command line in msh mode */
|
|
static rt_err_t msh_rtc_set_time(int argc, char **argv)
|
|
{
|
|
rt_uint32_t index, len, arg[3];
|
|
|
|
rt_memset(arg, 0, sizeof(arg));
|
|
len = (argc >= 4) ? 4 : argc;
|
|
|
|
/* The time information stored in argv is represented by the following order :
|
|
argv[0,1,2,3] = [cmd, hour, minute, second] */
|
|
for (index = 0; index < (len - 1); index ++)
|
|
{
|
|
arg[index] = atol(argv[index + 1]);
|
|
}
|
|
|
|
return set_time(arg[0], arg[1], arg[2]);
|
|
}
|
|
MSH_CMD_EXPORT_ALIAS(msh_rtc_set_time, rtc_set_time, e.g: rtc_set_time 18 30 00);
|
|
#endif
|
|
|
|
|
|
/* rtc interrupt entry */
|
|
void RTC_IRQHandler(void)
|
|
{
|
|
rt_interrupt_enter();
|
|
|
|
if (RTC_GET_TICK_INT_FLAG())
|
|
{
|
|
RTC_CLEAR_TICK_INT_FLAG();
|
|
}
|
|
|
|
#if defined(RT_USING_ALARM)
|
|
|
|
if (RTC_GET_ALARM_INT_FLAG())
|
|
{
|
|
RTC_CLEAR_ALARM_INT_FLAG();
|
|
|
|
/* Send an alarm event to notify rt-thread alarm service. */
|
|
rt_alarm_update(&device_rtc, NULL);
|
|
}
|
|
#endif
|
|
|
|
rt_interrupt_leave();
|
|
}
|
|
|
|
#endif /* BSP_USING_RTC */
|
|
|