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New RTCv3 driver for STM32G0xx and STM32G4xx. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@13116 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Giovanni Di Sirio 2019-10-19 07:36:15 +00:00
parent 5749bfc979
commit 68da5e845a
9 changed files with 982 additions and 13 deletions
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9
demos/STM32/RT-STM32G071RB-NUCLEO64/cfg/mcuconf.h
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@ -80,13 +80,14 @@
/*
* Shared IRQ settings.
*/
#define STM32_IRQ_EXTI0_1_PRIORITY 2
#define STM32_IRQ_EXTI2_3_PRIORITY 2
#define STM32_IRQ_EXTI4_15_PRIORITY 2
#define STM32_IRQ_EXTI0_1_PRIORITY 3
#define STM32_IRQ_EXTI2_3_PRIORITY 3
#define STM32_IRQ_EXTI4_15_PRIORITY 3
#define STM32_IRQ_EXTI1921_PRIORITY 3
#define STM32_IRQ_USART1_PRIORITY 2
#define STM32_IRQ_USART2_PRIORITY 2
#define STM32_IRQ_USART3_4_LP1_PRIORITY 1
#define STM32_IRQ_USART3_4_LP1_PRIORITY 2
#define STM32_IRQ_TIM1_UP_PRIORITY 1
#define STM32_IRQ_TIM1_CC_PRIORITY 1

9
os/hal/ports/STM32/LLD/RTCv3/driver.mk Normal file
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@ -0,0 +1,9 @@
ifeq ($(USE_SMART_BUILD),yes)
ifneq ($(findstring HAL_USE_RTC TRUE,$(HALCONF)),)
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/RTCv3/hal_rtc_lld.c
endif
else
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/RTCv3/hal_rtc_lld.c
endif
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/RTCv3

665
os/hal/ports/STM32/LLD/RTCv3/hal_rtc_lld.c Normal file
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/*
ChibiOS - Copyright (C) 2006..2019 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 RTCv3/hal_rtc_lld.c
* @brief STM32 RTC low level driver.
*
* @addtogroup RTC
* @{
*/
#include "hal.h"
#if HAL_USE_RTC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#define RTC_TR_PM_OFFSET RTC_TR_PM_Pos
#define RTC_TR_HT_OFFSET RTC_TR_HT_Pos
#define RTC_TR_HU_OFFSET RTC_TR_HU_Pos
#define RTC_TR_MNT_OFFSET RTC_TR_MNT_Pos
#define RTC_TR_MNU_OFFSET RTC_TR_MNU_Pos
#define RTC_TR_ST_OFFSET RTC_TR_ST_Pos
#define RTC_TR_SU_OFFSET RTC_TR_SU_Pos
#define RTC_DR_YT_OFFSET RTC_DR_YT_Pos
#define RTC_DR_YU_OFFSET RTC_DR_YU_Pos
#define RTC_DR_WDU_OFFSET RTC_DR_WDU_Pos
#define RTC_DR_MT_OFFSET RTC_DR_MT_Pos
#define RTC_DR_MU_OFFSET RTC_DR_MU_Pos
#define RTC_DR_DT_OFFSET RTC_DR_DT_Pos
#define RTC_DR_DU_OFFSET RTC_DR_DU_Pos
#define RTC_CR_BKP_OFFSET RTC_CR_BKP_Pos
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/**
* @brief RTC driver identifier.
*/
RTCDriver RTCD1;
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/**
* @brief Beginning of configuration procedure.
*
* @notapi
*/
static void rtc_enter_init(void) {
RTCD1.rtc->ICSR |= RTC_ICSR_INIT;
while ((RTCD1.rtc->ICSR & RTC_ICSR_INITF) == 0)
;
}
/**
* @brief Finalizing of configuration procedure.
*
* @notapi
*/
static inline void rtc_exit_init(void) {
RTCD1.rtc->ICSR &= ~RTC_ICSR_INIT;
}
/**
* @brief Converts time from TR register encoding to timespec.
*
* @param[in] tr TR register value
* @param[out] timespec pointer to a @p RTCDateTime structure
*
* @notapi
*/
static void rtc_decode_time(uint32_t tr, RTCDateTime *timespec) {
uint32_t n;
n = ((tr >> RTC_TR_HT_OFFSET) & 3) * 36000000;
n += ((tr >> RTC_TR_HU_OFFSET) & 15) * 3600000;
n += ((tr >> RTC_TR_MNT_OFFSET) & 7) * 600000;
n += ((tr >> RTC_TR_MNU_OFFSET) & 15) * 60000;
n += ((tr >> RTC_TR_ST_OFFSET) & 7) * 10000;
n += ((tr >> RTC_TR_SU_OFFSET) & 15) * 1000;
timespec->millisecond = n;
}
/**
* @brief Converts date from DR register encoding to timespec.
*
* @param[in] dr DR register value
* @param[out] timespec pointer to a @p RTCDateTime structure
*
* @notapi
*/
static void rtc_decode_date(uint32_t dr, RTCDateTime *timespec) {
timespec->year = (((dr >> RTC_DR_YT_OFFSET) & 15) * 10) +
((dr >> RTC_DR_YU_OFFSET) & 15);
timespec->month = (((dr >> RTC_TR_MNT_OFFSET) & 1) * 10) +
((dr >> RTC_TR_MNU_OFFSET) & 15);
timespec->day = (((dr >> RTC_DR_DT_OFFSET) & 3) * 10) +
((dr >> RTC_DR_DU_OFFSET) & 15);
timespec->dayofweek = ((dr >> RTC_DR_WDU_OFFSET) & 7) + 1;
}
/**
* @brief Converts time from timespec to TR register encoding.
*
* @param[in] timespec pointer to a @p RTCDateTime structure
* @return the TR register encoding.
*
* @notapi
*/
static uint32_t rtc_encode_time(const RTCDateTime *timespec) {
uint32_t n, tr = 0;
/* Subseconds cannot be set.*/
n = timespec->millisecond / 1000;
/* Seconds conversion.*/
tr = tr | ((n % 10) << RTC_TR_SU_OFFSET);
n /= 10;
tr = tr | ((n % 6) << RTC_TR_ST_OFFSET);
n /= 6;
/* Minutes conversion.*/
tr = tr | ((n % 10) << RTC_TR_MNU_OFFSET);
n /= 10;
tr = tr | ((n % 6) << RTC_TR_MNT_OFFSET);
n /= 6;
/* Hours conversion.*/
tr = tr | ((n % 10) << RTC_TR_HU_OFFSET);
n /= 10;
tr = tr | (n << RTC_TR_HT_OFFSET);
return tr;
}
/**
* @brief Converts a date from timespec to DR register encoding.
*
* @param[in] timespec pointer to a @p RTCDateTime structure
* @return the DR register encoding.
*
* @notapi
*/
static uint32_t rtc_encode_date(const RTCDateTime *timespec) {
uint32_t n, dr = 0;
/* Year conversion. Note, only years last two digits are considered.*/
n = timespec->year;
dr = dr | ((n % 10) << RTC_DR_YU_OFFSET);
n /= 10;
dr = dr | ((n % 10) << RTC_DR_YT_OFFSET);
/* Months conversion.*/
n = timespec->month;
dr = dr | ((n % 10) << RTC_DR_MU_OFFSET);
n /= 10;
dr = dr | ((n % 10) << RTC_DR_MT_OFFSET);
/* Days conversion.*/
n = timespec->day;
dr = dr | ((n % 10) << RTC_DR_DU_OFFSET);
n /= 10;
dr = dr | ((n % 10) << RTC_DR_DT_OFFSET);
/* Days of week conversion.*/
dr = dr | ((timespec->dayofweek) << RTC_DR_WDU_OFFSET);
return dr;
}
#if RTC_HAS_STORAGE == TRUE
static size_t _getsize(void *instance) {
(void)instance;
return (size_t)STM32_RTC_STORAGE_SIZE;
}
static ps_error_t _read(void *instance, ps_offset_t offset,
size_t n, uint8_t *rp) {
volatile uint32_t *bkpr = &((RTCDriver *)instance)->tamp->BKP0R;
unsigned i;
chDbgCheck((instance != NULL) && (rp != NULL));
chDbgCheck((n > 0U) && (n <= STM32_RTC_STORAGE_SIZE));
chDbgCheck((offset < STM32_RTC_STORAGE_SIZE) &&
(offset + n <= STM32_RTC_STORAGE_SIZE));
for (i = 0; i < (unsigned)n; i++) {
unsigned index = ((unsigned)offset + i) / sizeof (uint32_t);
unsigned shift = ((unsigned)offset + i) % sizeof (uint32_t);
*rp++ = (uint8_t)(bkpr[index] >> (shift * 8U));
}
return PS_NO_ERROR;
}
static ps_error_t _write(void *instance, ps_offset_t offset,
size_t n, const uint8_t *wp) {
volatile uint32_t *bkpr = &((RTCDriver *)instance)->tamp->BKP0R;
unsigned i;
chDbgCheck((instance != NULL) && (wp != NULL));
chDbgCheck((n > 0U) && (n <= STM32_RTC_STORAGE_SIZE));
chDbgCheck((offset < STM32_RTC_STORAGE_SIZE) &&
(offset + n <= STM32_RTC_STORAGE_SIZE));
for (i = 0; i < (unsigned)n; i++) {
unsigned index = ((unsigned)offset + i) / sizeof (uint32_t);
unsigned shift = ((unsigned)offset + i) % sizeof (uint32_t);
uint32_t regval = bkpr[index];
regval &= ~(0xFFU << (shift * 8U));
regval |= (uint32_t)*wp++ << (shift * 8U);
bkpr[index] = regval;
}
return PS_NO_ERROR;
}
/**
* @brief VMT for the RTC storage file interface.
*/
struct RTCDriverVMT _rtc_lld_vmt = {
(size_t)0,
_getsize, _read, _write
};
#endif /* RTC_HAS_STORAGE == TRUE */
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
#if defined(STM32_RTC_COMMON_HANDLER)
#if !defined(STM32_RTC_SUPPRESS_COMMON_ISR)
/**
* @brief RTC common interrupt handler.
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_RTC_COMMON_HANDLER) {
uint32_t isr;
OSAL_IRQ_PROLOGUE();
/* Get the interrupt events. */
isr = RTCD1.rtc->MISR;
RTCD1.rtc->SCR = isr;
extiClearGroup1(EXTI_MASK1(STM32_RTC_EVENT_EXTI) |
EXTI_MASK1(STM32_TAMP_EVENT_EXTI));
if (RTCD1.callback != NULL) {
#if defined(RTC_MISR_WUTMF)
if ((isr & RTC_MISR_WUTMF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_WAKEUP);
}
#endif
#if defined(RTC_MISR_ALRAMF)
if ((isr & RTC_MISR_ALRAMF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_ALARM_A);
}
#endif
#if defined(RTC_MISR_ALRBMF)
if ((isr & RTC_MISR_ALRBMF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_ALARM_B);
}
#endif
#if defined(RTC_MISR_ITSMF)
if ((isr & RTC_MISR_ITSMF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TS);
}
#endif
#if defined(RTC_MISR_TSOVMF)
if ((isr & RTC_MISR_TSOVMF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TS_OVF);
}
#endif
/* Next handle the tamper interrupts. */
isr = RTCD1.tamp->MISR;
RTCD1.tamp->SCR = isr;
#if defined(TAMP_MISR_TAMP1MF)
if ((isr & TAMP_MISR_TAMP1MF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TAMP1);
}
#endif
#if defined(TAMP_MISR_TAMP2MF)
if ((isr & TAMP_MISR_TAMP2MF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TAMP2);
}
#endif
#if defined(TAMP_MISR_TAMP3MF)
if ((isr & TAMP_MISR_TAMP3MF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TAMP3);
}
#endif
#if defined(TAMP_MISR_TAMP4MF)
if ((isr & TAMP_MISR_TAMP4MF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TAMP4);
}
#endif
#if defined(TAMP_MISR_TAMP5MF)
if ((isr & TAMP_MISR_TAMP5MF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TAMP5);
}
#endif
#if defined(TAMP_MISR_TAMP6MF)
if ((isr & TAMP_MISR_TAMP6MF) != 0U) {
RTCD1.callback(&RTCD1, RTC_EVENT_TAMP6);
}
#endif
}
OSAL_IRQ_EPILOGUE();
}
#endif /* !defined(STM32_RTC_SUPPRESS_COMMON_ISR) */
#else
#error "missing required RTC handlers definitions in registry"
#endif
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Enable access to registers.
*
* @notapi
*/
void rtc_lld_init(void) {
/* RTC object initialization.*/
rtcObjectInit(&RTCD1);
/* RTC pointer initialization.*/
RTCD1.rtc = RTC;
/* Disable write protection. */
RTCD1.rtc->WPR = 0xCA;
RTCD1.rtc->WPR = 0x53;
/* If calendar has not been initialized yet then proceed with the
initial setup.*/
if (!(RTCD1.rtc->ICSR & RTC_ICSR_INITS)) {
rtc_enter_init();
RTCD1.rtc->CR |= (STM32_RTC_CR_INIT & STM32_RTC_CR_MASK);
RTCD1.rtc->ICSR |= RTC_ICSR_INIT; /* Clearing all but RTC_ISR_INIT. */
RTCD1.rtc->PRER |= (STM32_RTC_PRER_BITS & STM32_RTC_PRER_MASK);
rtc_exit_init();
}
else {
RTCD1.rtc->ICSR &= ~RTC_ICSR_RSF;
}
/* TAMP pointer initialization. */
RTCD1.tamp = TAMP;
/* Initialise TAMP registers. */
RTCD1.tamp->CR1 |= (STM32_TAMP_CR1_INIT & STM32_TAMP_CR1_MASK);
RTCD1.tamp->CR2 |= (STM32_TAMP_CR2_INIT & STM32_TAMP_CR2_MASK);
RTCD1.tamp->FLTCR |= (STM32_TAMP_FLTCR_INIT & STM32_TAMP_FLTCR_MASK);
RTCD1.tamp->IER |= (STM32_TAMP_IER_INIT & STM32_TAMP_IER_MASK);
/* Callback initially disabled.*/
RTCD1.callback = NULL;
/* Enabling RTC-related EXTI lines.*/
extiEnableGroup1(EXTI_MASK1(STM32_RTC_EVENT_EXTI) |
EXTI_MASK1(STM32_TAMP_EVENT_EXTI),
EXTI_MODE_RISING_EDGE | EXTI_MODE_ACTION_INTERRUPT);
/* The EXTI lines are direct. Events enabled by peripheral
and trigger on their rising edge only */
/* IRQ vectors permanently assigned to this driver.*/
STM32_RTC_AND_TAMP_IRQ_ENABLE();
}
/**
* @brief Set current time.
* @note Fractional part will be silently ignored. There is no possibility
* to set it on STM32 platform.
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] timespec pointer to a @p RTCDateTime structure
*
* @notapi
*/
void rtc_lld_set_time(RTCDriver *rtcp, const RTCDateTime *timespec) {
uint32_t dr, tr;
syssts_t sts;
tr = rtc_encode_time(timespec);
dr = rtc_encode_date(timespec);
/* Entering a reentrant critical zone.*/
sts = osalSysGetStatusAndLockX();
/* Writing the registers.*/
rtc_enter_init();
rtcp->rtc->TR = tr;
rtcp->rtc->DR = dr;
rtcp->rtc->CR = (rtcp->rtc->CR & ~(1U << RTC_CR_BKP_OFFSET)) |
(timespec->dstflag << RTC_CR_BKP_OFFSET);
rtc_exit_init();
/* Leaving a reentrant critical zone.*/
osalSysRestoreStatusX(sts);
}
/**
* @brief Get current time.
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[out] timespec pointer to a @p RTCDateTime structure
*
* @notapi
*/
void rtc_lld_get_time(RTCDriver *rtcp, RTCDateTime *timespec) {
uint32_t dr, tr, cr;
uint32_t subs;
#if STM32_RTC_HAS_SUBSECONDS
uint32_t ssr;
#endif /* STM32_RTC_HAS_SUBSECONDS */
syssts_t sts;
/* Entering a reentrant critical zone.*/
sts = osalSysGetStatusAndLockX();
/* Synchronization with the RTC and reading the registers, note
DR must be read last.*/
while ((rtcp->rtc->ICSR & RTC_ICSR_RSF) == 0)
;
#if STM32_RTC_HAS_SUBSECONDS
ssr = rtcp->rtc->SSR;
#endif /* STM32_RTC_HAS_SUBSECONDS */
tr = rtcp->rtc->TR;
dr = rtcp->rtc->DR;
cr = rtcp->rtc->CR;
rtcp->rtc->ICSR &= ~RTC_ICSR_RSF;
/* Leaving a reentrant critical zone.*/
osalSysRestoreStatusX(sts);
/* Decoding day time, this starts the atomic read sequence, see "Reading
the calendar" in the RTC documentation.*/
rtc_decode_time(tr, timespec);
/* If the RTC is capable of sub-second counting then the value is
normalized in milliseconds and added to the time.*/
#if STM32_RTC_HAS_SUBSECONDS
subs = (((STM32_RTC_PRESS_VALUE - 1U) - ssr) * 1000U) / STM32_RTC_PRESS_VALUE;
#else
subs = 0;
#endif /* STM32_RTC_HAS_SUBSECONDS */
timespec->millisecond += subs;
/* Decoding date, this concludes the atomic read sequence.*/
rtc_decode_date(dr, timespec);
/* Retrieving the DST bit.*/
timespec->dstflag = (cr >> RTC_CR_BKP_OFFSET) & 1;
}
#if (RTC_ALARMS > 0) || defined(__DOXYGEN__)
/**
* @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.
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure.
* @param[in] alarm alarm identifier. Can be 0 (=1), 1 or 2.
* @param[in] alarmspec pointer to a @p RTCAlarm structure.
*
* @notapi
*/
void rtc_lld_set_alarm(RTCDriver *rtcp,
rtcalarm_t alarm,
const RTCAlarm *alarmspec) {
syssts_t sts;
/* Entering a reentrant critical zone.*/
sts = osalSysGetStatusAndLockX();
if (alarm == 0) {
if (alarmspec != NULL) {
rtcp->rtc->CR &= ~RTC_CR_ALRAE;
while (!(rtcp->rtc->ICSR & RTC_ICSR_ALRAWF))
;
rtcp->rtc->ALRMAR = alarmspec->alrmr;
rtcp->rtc->CR |= RTC_CR_ALRAE;
rtcp->rtc->CR |= RTC_CR_ALRAIE;
}
else {
rtcp->rtc->CR &= ~RTC_CR_ALRAIE;
rtcp->rtc->CR &= ~RTC_CR_ALRAE;
}
}
#if RTC_ALARMS > 1
else {
if (alarmspec != NULL) {
rtcp->rtc->CR &= ~RTC_CR_ALRBE;
while (!(rtcp->rtc->ICSR & RTC_ICSR_ALRBWF))
;
rtcp->rtc->ALRMBR = alarmspec->alrmr;
rtcp->rtc->CR |= RTC_CR_ALRBE;
rtcp->rtc->CR |= RTC_CR_ALRBIE;
}
else {
rtcp->rtc->CR &= ~RTC_CR_ALRBIE;
rtcp->rtc->CR &= ~RTC_CR_ALRBE;
}
}
#endif /* RTC_ALARMS > 1 */
/* Leaving a reentrant critical zone.*/
osalSysRestoreStatusX(sts);
}
/**
* @brief Get alarm time.
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] alarm alarm identifier. Can be 0 (=1), 1 or 2.
* @param[out] alarmspec pointer to a @p RTCAlarm structure
*
* @notapi
*/
void rtc_lld_get_alarm(RTCDriver *rtcp,
rtcalarm_t alarm,
RTCAlarm *alarmspec) {
if (alarm == 0)
alarmspec->alrmr = rtcp->rtc->ALRMAR;
#if RTC_ALARMS > 1
else
alarmspec->alrmr = rtcp->rtc->ALRMBR;
#endif /* RTC_ALARMS > 1 */
}
#endif /* RTC_ALARMS > 0 */
/**
* @brief Enables or disables RTC callbacks.
* @details This function enables or disables callbacks, use a @p NULL pointer
* in order to disable a callback.
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] callback callback function pointer or @p NULL
*
* @notapi
*/
void rtc_lld_set_callback(RTCDriver *rtcp, rtccb_t callback) {
rtcp->callback = callback;
}
#if STM32_RTC_HAS_PERIODIC_WAKEUPS || defined(__DOXYGEN__)
/**
* @brief Sets time of periodic wakeup.
* @note Default value after BKP domain reset is 0x0000FFFF
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] wakeupspec pointer to a @p RTCWakeup structure
*
* @api
*/
void rtcSTM32SetPeriodicWakeup(RTCDriver *rtcp, const RTCWakeup *wakeupspec) {
syssts_t sts;
/* Entering a reentrant critical zone.*/
sts = osalSysGetStatusAndLockX();
if (wakeupspec != NULL) {
osalDbgCheck(wakeupspec->wutr != 0x30000);
rtcp->rtc->CR &= ~RTC_CR_WUTE;
rtcp->rtc->CR &= ~RTC_CR_WUTIE;
while (!(rtcp->rtc->ICSR & RTC_ICSR_WUTWF))
;
rtcp->rtc->WUTR = wakeupspec->wutr & 0xFFFF;
rtcp->rtc->CR &= ~RTC_CR_WUCKSEL;
rtcp->rtc->CR |= (wakeupspec->wutr >> 16) & RTC_CR_WUCKSEL;
rtcp->rtc->CR |= RTC_CR_WUTIE;
rtcp->rtc->CR |= RTC_CR_WUTE;
}
else {
rtcp->rtc->CR &= ~RTC_CR_WUTE;
rtcp->rtc->CR &= ~RTC_CR_WUTIE;
}
/* Leaving a reentrant critical zone.*/
osalSysRestoreStatusX(sts);
}
/**
* @brief Gets time of periodic wakeup.
* @note Default value after BKP domain reset is 0x0000FFFF
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[out] wakeupspec pointer to a @p RTCWakeup structure
*
* @api
*/
void rtcSTM32GetPeriodicWakeup(RTCDriver *rtcp, RTCWakeup *wakeupspec) {
syssts_t sts;
/* Entering a reentrant critical zone.*/
sts = osalSysGetStatusAndLockX();
wakeupspec->wutr = 0;
wakeupspec->wutr |= rtcp->rtc->WUTR;
wakeupspec->wutr |= (((uint32_t)rtcp->rtc->CR) & 0x7) << 16;
/* Leaving a reentrant critical zone.*/
osalSysRestoreStatusX(sts);
}
#endif /* STM32_RTC_HAS_PERIODIC_WAKEUPS */
#endif /* HAL_USE_RTC */
/** @} */

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os/hal/ports/STM32/LLD/RTCv3/hal_rtc_lld.h Normal file
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/*
ChibiOS - Copyright (C) 2006..2018 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 RTCv3/hal_rtc_lld.h
* @brief STM32 RTC low level driver header.
*
* @addtogroup RTC
* @{
*/
#ifndef HAL_RTC_LLD_H
#define HAL_RTC_LLD_H
#if HAL_USE_RTC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @name Implementation capabilities
*/
/**
* @brief Callback support int the driver.
*/
#define RTC_SUPPORTS_CALLBACKS TRUE
/**
* @brief Number of alarms available.
*/
#define RTC_ALARMS STM32_RTC_NUM_ALARMS
/**
* @brief Presence of a local persistent storage.
*/
#define RTC_HAS_STORAGE (STM32_RTC_STORAGE_SIZE > 0)
/** @} */
/**
* @brief RTC PRER register initializer.
*/
#define RTC_PRER(a, s) ((((a) - 1) << 16) | ((s) - 1))
/**
* @name Alarm helper macros
* @{
*/
#define RTC_ALRM_MSK4 (1U << 31)
#define RTC_ALRM_WDSEL (1U << 30)
#define RTC_ALRM_DT(n) ((n) << 28)
#define RTC_ALRM_DU(n) ((n) << 24)
#define RTC_ALRM_MSK3 (1U << 23)
#define RTC_ALRM_HT(n) ((n) << 20)
#define RTC_ALRM_HU(n) ((n) << 16)
#define RTC_ALRM_MSK2 (1U << 15)
#define RTC_ALRM_MNT(n) ((n) << 12)
#define RTC_ALRM_MNU(n) ((n) << 8)
#define RTC_ALRM_MSK1 (1U << 7)
#define RTC_ALRM_ST(n) ((n) << 4)
#define RTC_ALRM_SU(n) ((n) << 0)
/** @} */
/* Requires services from the EXTI driver.*/
#if !defined(STM32_EXTI_REQUIRED)
#define STM32_EXTI_REQUIRED
#endif
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name Configuration options
* @{
*/
/**
* @brief RTC PRES register initialization.
* @note The default is calculated for a 32768Hz clock.
*/
#if !defined(STM32_RTC_PRESA_VALUE) || defined(__DOXYGEN__)
#define STM32_RTC_PRESA_VALUE 32
#endif
/**
* @brief RTC PRESS divider initialization.
* @note The default is calculated for a 32768Hz clock.
*/
#if !defined(STM32_RTC_PRESS_VALUE) || defined(__DOXYGEN__)
#define STM32_RTC_PRESS_VALUE 1024
#endif
/**
* @brief RTC CR register initialization value.
* @note Use this value to initialize features not directly handled by
* the RTC driver.
*/
#if !defined(STM32_RTC_CR_INIT) || defined(__DOXYGEN__)
#define STM32_RTC_CR_INIT 0
#endif
/**
* @brief TAMP register initialization value.
* @note Use this value to initialize features not directly handled by
* the RTC driver.
* @note On some devices this values goes in the similar TAFCR register.
*/
#if !defined(STM32_TAMP_CR1_INIT) || defined(__DOXYGEN__)
#define STM32_TAMP_CR1_INIT 0
#endif
/**
* @brief TAMP register initialization value.
* @note Use this value to initialize features not directly handled by
* the RTC driver.
* @note On some devices this values goes in the similar TAFCR register.
*/
#if !defined(STM32_TAMP_CR2_INIT) || defined(__DOXYGEN__)
#define STM32_TAMP_CR2_INIT 0
#endif
/**
* @brief TAMP register initialization value.
* @note Use this value to initialize features not directly handled by
* the RTC driver.
* @note On some devices this values goes in the similar TAFCR register.
*/
#if !defined(STM32_TAMP_FLTCR_INIT) || defined(__DOXYGEN__)
#define STM32_TAMP_FLTCR_INIT 0
#endif
/**
* @brief TAMP register initialization value.
* @note Use this value to initialize features not directly handled by
* the RTC driver.
* @note On some devices this values goes in the similar TAFCR register.
*/
#if !defined(STM32_TAMP_IER_INIT) || defined(__DOXYGEN__)
#define STM32_TAMP_IER_INIT 0
#endif
/** @} */
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if HAL_USE_RTC && !STM32_HAS_RTC
#error "RTC not present in the selected device"
#endif
#if defined(STM32_RTC_CK) && !defined(STM32_RTCCLK)
#define STM32_RTCCLK STM32_RTC_CK
#endif
#if !defined(STM32_RTCCLK)
#error "RTC clock not exported by HAL layer"
#endif
#if STM32_PCLK1 < (STM32_RTCCLK * 7)
#error "STM32_PCLK1 frequency is too low"
#endif
/**
* @brief Initialization for the RTC_PRER register.
*/
#define STM32_RTC_PRER_BITS RTC_PRER(STM32_RTC_PRESA_VALUE, \
STM32_RTC_PRESS_VALUE)
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of an RTC event.
*/
typedef enum {
RTC_EVENT_ALARM_A = 0, /** Alarm A. */
RTC_EVENT_ALARM_B = 1, /** Alarm B. */
RTC_EVENT_TS = 2, /** Time stamp. */
RTC_EVENT_TS_OVF = 3, /** Time stamp overflow. */
RTC_EVENT_TAMP1 = 4, /** Tamper 1. */
RTC_EVENT_TAMP2 = 5, /** Tamper 2- */
RTC_EVENT_TAMP3 = 6, /** Tamper 3. */
RTC_EVENT_TAMP4 = 7, /** Tamper 4. */
RTC_EVENT_TAMP5 = 8, /** Tamper 5. */
RTC_EVENT_TAMP6 = 9, /** Tamper 6. */
RTC_EVENT_WAKEUP = 10, /** Wakeup. */
} rtcevent_t;
/**
* @brief Type of a generic RTC callback.
*/
typedef void (*rtccb_t)(RTCDriver *rtcp, rtcevent_t event);
/**
* @brief Type of a structure representing an RTC alarm time stamp.
*/
typedef struct hal_rtc_alarm {
/**
* @brief Type of an alarm as encoded in RTC ALRMxR registers.
*/
uint32_t alrmr;
} RTCAlarm;
#if STM32_RTC_HAS_PERIODIC_WAKEUPS
/**
* @brief Type of a wakeup as encoded in RTC WUTR register.
*/
typedef struct hal_rtc_wakeup {
/**
* @brief Wakeup as encoded in RTC WUTR register.
* @note ((WUTR == 0) || (WUCKSEL == 3)) are a forbidden combination.
* @note Bits 16..18 are copied in the CR bits 0..2 (WUCKSEL).
*/
uint32_t wutr;
} RTCWakeup;
#endif
/**
* @brief Implementation-specific @p RTCDriver fields.
*/
#define rtc_lld_driver_fields \
/* Pointer to the RTC registers block.*/ \
RTC_TypeDef *rtc; \
/* RTC event callback pointer.*/ \
rtccb_t callback; \
/* Pointer to TAMPER registers block. */ \
TAMP_TypeDef *tamp
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void rtc_lld_init(void);
void rtc_lld_set_time(RTCDriver *rtcp, const RTCDateTime *timespec);
void rtc_lld_get_time(RTCDriver *rtcp, RTCDateTime *timespec);
#if RTC_SUPPORTS_CALLBACKS == TRUE
void rtc_lld_set_callback(RTCDriver *rtcp, rtccb_t callback);
#endif
#if RTC_ALARMS > 0
void rtc_lld_set_alarm(RTCDriver *rtcp,
rtcalarm_t alarm,
const RTCAlarm *alarmspec);
void rtc_lld_get_alarm(RTCDriver *rtcp,
rtcalarm_t alarm,
RTCAlarm *alarmspec);
#endif
#if STM32_RTC_HAS_PERIODIC_WAKEUPS
void rtcSTM32SetPeriodicWakeup(RTCDriver *rtcp, const RTCWakeup *wakeupspec);
void rtcSTM32GetPeriodicWakeup(RTCDriver *rtcp, RTCWakeup *wakeupspec);
#endif /* STM32_RTC_HAS_PERIODIC_WAKEUPS */
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_RTC */
#endif /* HAL_RTC_LLD_H */
/** @} */

2
os/hal/ports/STM32/STM32G0xx/platform.mk
View File

@ -32,7 +32,7 @@ include $(CHIBIOS)/os/hal/ports/STM32/LLD/DMAv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/EXTIv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/GPIOv2/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2/driver.mk
#include $(CHIBIOS)/os/hal/ports/STM32/LLD/RTCv2/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/RTCv3/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/TIMv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/USARTv2/driver.mk

19
os/hal/ports/STM32/STM32G0xx/stm32_registry.h
View File

@ -38,7 +38,7 @@
/* Common. */
/*===========================================================================*/
/* RTC attributes.*/
/* RTC and TAMP attributes.*/
#define STM32_HAS_RTC TRUE
#define STM32_RTC_HAS_SUBSECONDS TRUE
#define STM32_RTC_HAS_PERIODIC_WAKEUPS TRUE
@ -46,14 +46,21 @@
#define STM32_RTC_STORAGE_SIZE 20
#define STM32_RTC_COMMON_HANDLER Vector48
#define STM32_RTC_COMMON_NUMBER 2
#define STM32_RTC_ALARM_EXTI 18
#define STM32_RTC_TAMP_STAMP_EXTI 19
#define STM32_RTC_WKUP_EXTI 20
#define STM32_RTC_IRQ_ENABLE() do { \
#define STM32_RTC_EVENT_EXTI 19
#define STM32_TAMP_EVENT_EXTI 21
#define STM32_RTC_AND_TAMP_IRQ_ENABLE() do { \
nvicEnableVector(STM32_RTC_COMMON_NUMBER, \
STM32_IRQ_EXTI19_21_IRQ_PRIORITY); \
STM32_IRQ_EXTI1921_PRIORITY); \
} while (false)
/* Masks used to preserve state of reserved bits. */
#define STM32_RTC_CR_MASK 0xE7FFFF7F
#define STM32_RTC_PRER_MASK 0x007F7FFF
#define STM32_TAMP_CR1_MASK 0x003C0003
#define STM32_TAMP_CR2_MASK 0x030300FF
#define STM32_TAMP_FLTCR_MASK 0x000000FF
#define STM32_TAMP_IER_MASK 0x003C0003
#if defined(STM32G081xx) || defined(__DOXYGEN__)
#define STM32_HAS_RNG1 TRUE
#define STM32_HAS_HASH1 FALSE

2
os/hal/ports/STM32/STM32G4xx/platform.mk
View File

@ -31,7 +31,7 @@ include $(CHIBIOS)/os/hal/ports/STM32/LLD/DMAv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/EXTIv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/GPIOv2/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2/driver.mk
#include $(CHIBIOS)/os/hal/ports/STM32/LLD/RTCv2/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/RTCv3/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/QUADSPIv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/TIMv1/driver.mk

1
readme.txt
View File

@ -74,6 +74,7 @@
*****************************************************************************
*** Next ***
- HAL: New RTCv3 driver for STM32G0xx and STM32G4xx.
- HAL: Added support for DAC3 and DAC4 in STM32 DACv1 driver.
- NIL: New functions: chSemResetWithMessageI() and chSemResetWithMessage().
- RT: New functions: chSemResetWithMessageI() and chSemResetWithMessage().

3
tools/ftl/processors/conf/mcuconf_stm32g071xx/mcuconf.h.ftl
View File

@ -94,10 +94,11 @@
#define STM32_IRQ_EXTI0_1_PRIORITY ${doc.STM32_IRQ_EXTI0_1_PRIORITY!"3"}
#define STM32_IRQ_EXTI2_3_PRIORITY ${doc.STM32_IRQ_EXTI2_3_PRIORITY!"3"}
#define STM32_IRQ_EXTI4_15_PRIORITY ${doc.STM32_IRQ_EXTI4_15_PRIORITY!"3"}
#define STM32_IRQ_EXTI1921_PRIORITY ${doc.STM32_IRQ_EXTI1921_PRIORITY!"3"}
#define STM32_IRQ_USART1_PRIORITY ${doc.STM32_IRQ_USART1_PRIORITY!"2"}
#define STM32_IRQ_USART2_PRIORITY ${doc.STM32_IRQ_USART2_PRIORITY!"2"}
#define STM32_IRQ_USART3_4_LP1_PRIORITY ${doc.STM32_IRQ_USART3_4_LP1_PRIORITY!"1"}
#define STM32_IRQ_USART3_4_LP1_PRIORITY ${doc.STM32_IRQ_USART3_4_LP1_PRIORITY!"2"}
#define STM32_IRQ_TIM1_UP_PRIORITY ${doc.STM32_IRQ_TIM1_UP_PRIORITY!"1"}
#define STM32_IRQ_TIM1_CC_PRIORITY ${doc.STM32_IRQ_TIM1_CC_PRIORITY!"1"}