forked from Imagelibrary/rtems
3ac0e3c77e
The function stm32u5_rtc_get_time is only used locally and therefore should be static. Update #5289
144 lines
4.4 KiB
C
144 lines
4.4 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
|
|
|
|
/**
|
|
* @file
|
|
*
|
|
* @ingroup RTEMSBSPsARMSTM32U5
|
|
*
|
|
* @brief Implementation of the RTC driver for the STM32U5
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2024 embedded brains GmbH & Co. KG
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <bsp.h>
|
|
#include <bsp/fatal.h>
|
|
#include <bsp/start.h>
|
|
#include <libchip/rtc.h>
|
|
#include <rtems/rtems/clockimpl.h>
|
|
#include <rtems/score/todimpl.h>
|
|
#include <stm32u5/hal.h>
|
|
|
|
RTC_HandleTypeDef hrtc = { 0 };
|
|
RTC_TimeTypeDef sTime = { 0 };
|
|
RTC_DateTypeDef sDate = { 0 };
|
|
|
|
static void stm32u5_rtc_get_time( rtems_time_of_day *tod )
|
|
{
|
|
if ( HAL_RTC_GetTime( &hrtc, &sTime, RTC_FORMAT_BIN ) != HAL_OK ) {
|
|
bsp_fatal( STM32U5_FATAL_RTC );
|
|
}
|
|
|
|
if ( HAL_RTC_GetDate( &hrtc, &sDate, RTC_FORMAT_BIN ) != HAL_OK ) {
|
|
bsp_fatal( STM32U5_FATAL_RTC );
|
|
}
|
|
|
|
tod->ticks = 0;
|
|
tod->second = sTime.Seconds;
|
|
tod->minute = sTime.Minutes;
|
|
tod->hour = sTime.Hours;
|
|
tod->day = sDate.Date;
|
|
tod->month = sDate.Month;
|
|
tod->year = TOD_BASE_YEAR + sDate.Year;
|
|
}
|
|
|
|
static void stm32u5_rtc_device_initialize( int minor )
|
|
{
|
|
hrtc.Instance = RTC;
|
|
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
|
|
hrtc.Init.AsynchPrediv = 127;
|
|
hrtc.Init.SynchPrediv = 255;
|
|
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
|
|
hrtc.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE;
|
|
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
|
|
hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
|
|
hrtc.Init.OutPutPullUp = RTC_OUTPUT_PULLUP_NONE;
|
|
hrtc.Init.BinMode = RTC_BINARY_MIX;
|
|
if ( HAL_RTC_Init( &hrtc ) != HAL_OK ) {
|
|
bsp_fatal( STM32U5_FATAL_RTC );
|
|
}
|
|
}
|
|
|
|
static int stm32u5_rtc_device_get_time( int minor, rtems_time_of_day *tod )
|
|
{
|
|
stm32u5_rtc_get_time( tod );
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stm32u5_rtc_device_set_time(
|
|
int minor,
|
|
const rtems_time_of_day *tod
|
|
)
|
|
{
|
|
sTime.Hours = (uint8_t) tod->hour;
|
|
sTime.Minutes = (uint8_t) tod->minute;
|
|
sTime.Seconds = (uint8_t) tod->second;
|
|
sDate.Date = (uint8_t) tod->day;
|
|
sDate.Month = (uint8_t) tod->month;
|
|
sDate.Year = (uint8_t) tod->year - TOD_BASE_YEAR;
|
|
|
|
if ( HAL_RTC_SetTime( &hrtc, &sTime, RTC_FORMAT_BIN ) != HAL_OK ) {
|
|
bsp_fatal( STM32U5_FATAL_RTC );
|
|
}
|
|
|
|
if ( HAL_RTC_SetDate( &hrtc, &sDate, RTC_FORMAT_BIN ) != HAL_OK ) {
|
|
bsp_fatal( STM32U5_FATAL_RTC );
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool stm32u5_rtc_device_probe( int minor )
|
|
{
|
|
return true;
|
|
}
|
|
|
|
const rtc_fns stm32u5_rtc_device_ops = {
|
|
.deviceInitialize = stm32u5_rtc_device_initialize,
|
|
.deviceGetTime = stm32u5_rtc_device_get_time,
|
|
.deviceSetTime = stm32u5_rtc_device_set_time
|
|
};
|
|
|
|
rtc_tbl RTC_Table[] = {
|
|
{ .sDeviceName = "/dev/rtc",
|
|
.deviceType = RTC_CUSTOM,
|
|
.pDeviceFns = &stm32u5_rtc_device_ops,
|
|
.deviceProbe = stm32u5_rtc_device_probe }
|
|
};
|
|
|
|
void BSP_START_TEXT_SECTION HAL_RTC_MspInit( RTC_HandleTypeDef *hrtc )
|
|
{
|
|
/* Enable peripheral clocks and battery backup. */
|
|
__HAL_RCC_PWR_CLK_ENABLE();
|
|
HAL_PWR_EnableBkUpAccess();
|
|
__HAL_RCC_RTC_CONFIG( RCC_RTCCLKSOURCE_LSE );
|
|
__HAL_RCC_RTC_ENABLE();
|
|
__HAL_RCC_RTCAPB_CLK_ENABLE();
|
|
__HAL_RCC_RTCAPB_CLKAM_ENABLE();
|
|
}
|
|
|
|
size_t RTC_Count = RTEMS_ARRAY_SIZE( RTC_Table );
|