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Diffstat (limited to 'os/hal/platforms/STM32/RTCv2/rtc_lld.c')
-rw-r--r--os/hal/platforms/STM32/RTCv2/rtc_lld.c322
1 files changed, 0 insertions, 322 deletions
diff --git a/os/hal/platforms/STM32/RTCv2/rtc_lld.c b/os/hal/platforms/STM32/RTCv2/rtc_lld.c
deleted file mode 100644
index 17ae46ccf..000000000
--- a/os/hal/platforms/STM32/RTCv2/rtc_lld.c
+++ /dev/null
@@ -1,322 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-/*
- Concepts and parts of this file have been contributed by Uladzimir Pylinsky
- aka barthess.
- */
-
-/**
- * @file STM32/RTCv2/rtc_lld.c
- * @brief STM32L1xx/STM32F2xx/STM32F4xx RTC low level driver.
- *
- * @addtogroup RTC
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-
-#if HAL_USE_RTC || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver local definitions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/**
- * @brief RTC driver identifier.
- */
-RTCDriver RTCD1;
-
-/*===========================================================================*/
-/* Driver local variables and types. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-/**
- * @brief Wait for synchronization of RTC registers with APB1 bus.
- * @details This function must be invoked before trying to read RTC registers.
- *
- * @notapi
- */
-#define rtc_lld_apb1_sync() {while ((RTCD1.id_rtc->ISR & RTC_ISR_RSF) == 0);}
-
-/**
- * @brief Beginning of configuration procedure.
- *
- * @notapi
- */
-#define rtc_lld_enter_init() { \
- RTCD1.id_rtc->ISR |= RTC_ISR_INIT; \
- while ((RTCD1.id_rtc->ISR & RTC_ISR_INITF) == 0) \
- ; \
-}
-
-/**
- * @brief Finalizing of configuration procedure.
- *
- * @notapi
- */
-#define rtc_lld_exit_init() {RTCD1.id_rtc->ISR &= ~RTC_ISR_INIT;}
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Enable access to registers.
- *
- * @api
- */
-void rtc_lld_init(void){
- RTCD1.id_rtc = RTC;
-
- /* Asynchronous part of preloader. Set it to maximum value. */
- uint32_t prediv_a = 0x7F;
-
- /* Disable write protection. */
- RTCD1.id_rtc->WPR = 0xCA;
- RTCD1.id_rtc->WPR = 0x53;
-
- /* If calendar not init yet. */
- if (!(RTC->ISR & RTC_ISR_INITS)){
- rtc_lld_enter_init();
-
- /* Prescaler register must be written in two SEPARATE writes. */
- prediv_a = (prediv_a << 16) |
- (((STM32_RTCCLK / (prediv_a + 1)) - 1) & 0x7FFF);
- RTCD1.id_rtc->PRER = prediv_a;
- RTCD1.id_rtc->PRER = prediv_a;
- rtc_lld_exit_init();
- }
-}
-
-/**
- * @brief Set current time.
- * @note Fractional part will be silently ignored. There is no possibility
- * to set it on STM32 platform.
- *
- * @param[in] rtcp pointer to RTC driver structure
- * @param[in] timespec pointer to a @p RTCTime structure
- *
- * @api
- */
-void rtc_lld_set_time(RTCDriver *rtcp, const RTCTime *timespec) {
- (void)rtcp;
-
- rtc_lld_enter_init();
- if (timespec->h12)
- RTCD1.id_rtc->CR |= RTC_CR_FMT;
- else
- RTCD1.id_rtc->CR &= ~RTC_CR_FMT;
- RTCD1.id_rtc->TR = timespec->tv_time;
- RTCD1.id_rtc->DR = timespec->tv_date;
- rtc_lld_exit_init();
-}
-
-/**
- * @brief Get current time.
- *
- * @param[in] rtcp pointer to RTC driver structure
- * @param[out] timespec pointer to a @p RTCTime structure
- *
- * @api
- */
-void rtc_lld_get_time(RTCDriver *rtcp, RTCTime *timespec) {
- (void)rtcp;
-
- rtc_lld_apb1_sync();
-
-#if STM32_RTC_HAS_SUBSECONDS
- timespec->tv_msec =
- (1000 * ((RTCD1.id_rtc->PRER & 0x7FFF) - RTCD1.id_rtc->SSR)) /
- ((RTCD1.id_rtc->PRER & 0x7FFF) + 1);
-#endif /* STM32_RTC_HAS_SUBSECONDS */
- timespec->tv_time = RTCD1.id_rtc->TR;
- timespec->tv_date = RTCD1.id_rtc->DR;
-}
-
-/**
- * @brief Set alarm time.
- *
- * @note Default value after BKP domain reset for both comparators is 0.
- * @note Function does not performs any checks of alarm time validity.
- *
- * @param[in] rtcp Pointer to RTC driver structure.
- * @param[in] alarm Alarm identifier. Can be 1 or 2.
- * @param[in] alarmspec Pointer to a @p RTCAlarm structure.
- *
- * @api
- */
-void rtc_lld_set_alarm(RTCDriver *rtcp,
- rtcalarm_t alarm,
- const RTCAlarm *alarmspec) {
- if (alarm == 1){
- if (alarmspec != NULL){
- rtcp->id_rtc->CR &= ~RTC_CR_ALRAE;
- while(!(rtcp->id_rtc->ISR & RTC_ISR_ALRAWF))
- ;
- rtcp->id_rtc->ALRMAR = alarmspec->tv_datetime;
- rtcp->id_rtc->CR |= RTC_CR_ALRAE;
- rtcp->id_rtc->CR |= RTC_CR_ALRAIE;
- }
- else {
- rtcp->id_rtc->CR &= ~RTC_CR_ALRAIE;
- rtcp->id_rtc->CR &= ~RTC_CR_ALRAE;
- }
- }
- else{
- if (alarmspec != NULL){
- rtcp->id_rtc->CR &= ~RTC_CR_ALRBE;
- while(!(rtcp->id_rtc->ISR & RTC_ISR_ALRBWF))
- ;
- rtcp->id_rtc->ALRMBR = alarmspec->tv_datetime;
- rtcp->id_rtc->CR |= RTC_CR_ALRBE;
- rtcp->id_rtc->CR |= RTC_CR_ALRBIE;
- }
- else {
- rtcp->id_rtc->CR &= ~RTC_CR_ALRBIE;
- rtcp->id_rtc->CR &= ~RTC_CR_ALRBE;
- }
- }
-}
-
-/**
- * @brief Get alarm time.
- *
- * @param[in] rtcp pointer to RTC driver structure
- * @param[in] alarm alarm identifier
- * @param[out] alarmspec pointer to a @p RTCAlarm structure
- *
- * @api
- */
-void rtc_lld_get_alarm(RTCDriver *rtcp,
- rtcalarm_t alarm,
- RTCAlarm *alarmspec) {
- if (alarm == 1)
- alarmspec->tv_datetime = rtcp->id_rtc->ALRMAR;
- else
- alarmspec->tv_datetime = rtcp->id_rtc->ALRMBR;
-}
-
-/**
- * @brief Sets time of periodic wakeup.
- *
- * @note Default value after BKP domain reset is 0x0000FFFF
- *
- * @param[in] rtcp pointer to RTC driver structure
- * @param[in] wakeupspec pointer to a @p RTCWakeup structure
- *
- * @api
- */
-void rtcSetPeriodicWakeup_v2(RTCDriver *rtcp, RTCWakeup *wakeupspec){
- chDbgCheck((wakeupspec->wakeup != 0x30000),
- "rtc_lld_set_periodic_wakeup, forbidden combination");
-
- if (wakeupspec != NULL){
- rtcp->id_rtc->CR &= ~RTC_CR_WUTE;
- while(!(rtcp->id_rtc->ISR & RTC_ISR_WUTWF))
- ;
- rtcp->id_rtc->WUTR = wakeupspec->wakeup & 0xFFFF;
- rtcp->id_rtc->CR = (wakeupspec->wakeup >> 16) & 0x7;
- rtcp->id_rtc->CR |= RTC_CR_WUTIE;
- rtcp->id_rtc->CR |= RTC_CR_WUTE;
- }
- else {
- rtcp->id_rtc->CR &= ~RTC_CR_WUTIE;
- rtcp->id_rtc->CR &= ~RTC_CR_WUTE;
- }
-}
-
-/**
- * @brief Gets time of periodic wakeup.
- *
- * @note Default value after BKP domain reset is 0x0000FFFF
- *
- * @param[in] rtcp pointer to RTC driver structure
- * @param[out] wakeupspec pointer to a @p RTCWakeup structure
- *
- * @api
- */
-void rtcGetPeriodicWakeup_v2(RTCDriver *rtcp, RTCWakeup *wakeupspec){
- wakeupspec->wakeup = 0;
- wakeupspec->wakeup |= rtcp->id_rtc->WUTR;
- wakeupspec->wakeup |= (((uint32_t)rtcp->id_rtc->CR) & 0x7) << 16;
-}
-
-/**
- * @brief Get current time in format suitable for usage in FatFS.
- *
- * @param[in] rtcp pointer to RTC driver structure
- * @return FAT time value.
- *
- * @api
- */
-uint32_t rtc_lld_get_time_fat(RTCDriver *rtcp) {
- uint32_t fattime;
- RTCTime timespec;
- uint32_t tv_time;
- uint32_t tv_date;
- uint32_t v;
-
- chSysLock();
- rtcGetTimeI(rtcp, &timespec);
- chSysUnlock();
-
- tv_time = timespec.tv_time;
- tv_date = timespec.tv_date;
-
- v = (tv_time & RTC_TR_SU) >> RTC_TR_SU_OFFSET;
- v += ((tv_time & RTC_TR_ST) >> RTC_TR_ST_OFFSET) * 10;
- fattime = v >> 1;
-
- v = (tv_time & RTC_TR_MNU) >> RTC_TR_MNU_OFFSET;
- v += ((tv_time & RTC_TR_MNT) >> RTC_TR_MNT_OFFSET) * 10;
- fattime |= v << 5;
-
- v = (tv_time & RTC_TR_HU) >> RTC_TR_HU_OFFSET;
- v += ((tv_time & RTC_TR_HT) >> RTC_TR_HT_OFFSET) * 10;
- v += 12 * ((tv_time & RTC_TR_PM) >> RTC_TR_PM_OFFSET);
- fattime |= v << 11;
-
- v = (tv_date & RTC_DR_DU) >> RTC_DR_DU_OFFSET;
- v += ((tv_date & RTC_DR_DT) >> RTC_DR_DT_OFFSET) * 10;
- fattime |= v << 16;
-
- v = (tv_date & RTC_DR_MU) >> RTC_DR_MU_OFFSET;
- v += ((tv_date & RTC_DR_MT) >> RTC_DR_MT_OFFSET) * 10;
- fattime |= v << 21;
-
- v = (tv_date & RTC_DR_YU) >> RTC_DR_YU_OFFSET;
- v += ((tv_date & RTC_DR_YT) >> RTC_DR_YT_OFFSET) * 10;
- v += 2000 - 1900 - 80;
- fattime |= v << 25;
-
- return fattime;
-}
-
-#endif /* HAL_USE_RTC */
-
-/** @} */
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