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Port Boris Astardzhiev RTC change for STM32L4 to STM32F7

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This commit is contained in:
Gregory Nutt 2017-09-03 07:40:38 -06:00
parent b1eceb838b
commit 92b3c9477a
5 changed files with 202 additions and 31 deletions
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26
arch/arm/src/stm32f7/Kconfig
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@ -1828,35 +1828,38 @@ config STM32F7_SAVE_CRASHDUMP
endif # STM32F7_BKPSRAM
config STM32F7_HAVE_RTC_COUNTER
bool
default n
config STM32F7_HAVE_RTC_SUBSECONDS
bool
select ARCH_HAVE_RTC_SUBSECONDS
default y
menu "RTC Configuration"
depends on RTC
config RTC_MAGIC_REG
int "The BKP register used to store/check the Magic value to determine if RTC is set already"
int "BKP register"
default 0
range 0 31
depends on RTC && !STM32F7_HAVE_RTC_COUNTER
---help---
The BKP register used to store/check the Magic value to determine if
RTC is already setup
config RTC_MAGIC
hex "Value used as Magic to determine if RTC is already setup"
hex "RTC Magic 1"
default 0xfacefeee
depends on RTC && !STM32F7_HAVE_RTC_COUNTER
---help---
Value used as Magic to determine if the RTC is already setup
config RTC_MAGIC_TIME_SET
hex "Value used as Magic to determine if RTC is setup and have time set"
hex "RTC Magic 2"
default 0xfacefeef
depends on RTC && !STM32F7_HAVE_RTC_COUNTER
---help---
Value used as Magic to determine if the RTC has been setup and has
time set
choice
prompt "RTC clock source"
default STM32F7_RTC_LSECLOCK
depends on RTC
config STM32F7_RTC_HSECLOCK
bool "HSE clock"
@ -1874,6 +1877,7 @@ config STM32F7_RTC_LSICLOCK
Drive the RTC with the LSI clock
endchoice #"RTC clock source"
endmenu # RTC Configuration
config STM32F7_CUSTOM_CLOCKCONFIG
bool "Custom clock configuration"

24
arch/arm/src/stm32f7/stm32_alarm.h
View File

@ -72,6 +72,14 @@ struct alm_setalarm_s
FAR void *as_arg; /* Argument for callback */
};
/* Structure used to pass parameters to query an alarm */
struct alm_rdalarm_s
{
int as_id; /* enum alm_id_e */
FAR struct rtc_time *as_time; /* Argument for storing ALARM RTC time */
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
@ -92,6 +100,22 @@ struct alm_setalarm_s
int stm32_rtc_setalarm(FAR struct alm_setalarm_s *alminfo);
/************************************************************************************
* Name: stm32_rtc_rdalarm
*
* Description:
* Query an alarm configured in hardware.
*
* Input Parameters:
* alminfo - Information about the alarm configuration.
*
* Returned Value:
* Zero (OK) on success; a negated errno on failure
*
************************************************************************************/
int stm32_rtc_rdalarm(FAR struct alm_rdalarm_s *alminfo);
/****************************************************************************
* Name: stm32_rtc_cancelalarm
*

106
arch/arm/src/stm32f7/stm32_rtc.c
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@ -595,11 +595,11 @@ static void rtc_resume(void)
****************************************************************************/
#ifdef CONFIG_RTC_ALARM
static int stm32_rtc_alarm_handler(int irq, void *context)
static int stm32_rtc_alarm_handler(int irq, void *context, void *arg)
{
FAR struct alm_cbinfo_s *cbinfo;
alm_callback_t cb;
FAR void *arg;
FAR void *cbarg;
uint32_t isr;
uint32_t cr;
int ret = OK;
@ -619,12 +619,12 @@ static int stm32_rtc_alarm_handler(int irq, void *context)
/* Alarm A callback */
cb = cbinfo->ac_cb;
arg = (FAR void *)cbinfo->ac_arg;
cbarg = (FAR void *)cbinfo->ac_arg;
cbinfo->ac_cb = NULL;
cbinfo->ac_arg = NULL;
cb(arg, RTC_ALARMA);
cb(cbarg, RTC_ALARMA);
}
isr = getreg32(STM32_RTC_ISR) & ~RTC_ISR_ALRAF;
@ -644,12 +644,12 @@ static int stm32_rtc_alarm_handler(int irq, void *context)
/* Alarm B callback */
cb = cbinfo->ac_cb;
arg = (FAR void *)cbinfo->ac_arg;
cbarg = (FAR void *)cbinfo->ac_arg;
cbinfo->ac_cb = NULL;
cbinfo->ac_arg = NULL;
cb(arg, RTC_ALARMB);
cb(cbarg, RTC_ALARMB);
}
isr = getreg32(STM32_RTC_ISR) & ~RTC_ISR_ALRBF;
@ -1559,4 +1559,98 @@ errout_with_wprunlock:
}
#endif
#ifdef CONFIG_RTC_ALARM
/************************************************************************************
* Name: stm32_rtc_getalarmdatetime
*
* Description:
* Get the current date and time for a RTC alarm.
*
* Input Parameters:
* reg - RTC alarm register
* tp - The location to return the high resolution time value.
*
* Returned Value:
* Zero (OK) on success; a negated errno on failure
*
************************************************************************************/
int stm32_rtc_getalarmdatetime(rtc_alarmreg_t reg, FAR struct tm *tp)
{
uint32_t data, tmp;
ASSERT(tp != NULL);
/* Sample the data time register. */
data = getreg32(reg);
/* Convert the RTC time to fields in struct tm format. All of the STM32
* All of the ranges of values correspond between struct tm and the time
* register.
*/
tmp = (data & (RTC_ALRMR_SU_MASK | RTC_ALRMR_ST_MASK)) >> RTC_ALRMR_SU_SHIFT;
tp->tm_sec = rtc_bcd2bin(tmp);
tmp = (data & (RTC_ALRMR_MNU_MASK | RTC_ALRMR_MNT_MASK)) >> RTC_ALRMR_MNU_SHIFT;
tp->tm_min = rtc_bcd2bin(tmp);
tmp = (data & (RTC_ALRMR_HU_MASK | RTC_ALRMR_HT_MASK)) >> RTC_ALRMR_HU_SHIFT;
tp->tm_hour = rtc_bcd2bin(tmp);
return OK;
}
#endif
/************************************************************************************
* Name: stm32_rtc_rdalarm
*
* Description:
* Query an alarm configured in hardware.
*
* Input Parameters:
* alminfo - Information about the alarm configuration.
*
* Returned Value:
* Zero (OK) on success; a negated errno on failure
*
************************************************************************************/
#ifdef CONFIG_RTC_ALARM
int stm32_rtc_rdalarm(FAR struct alm_rdalarm_s *alminfo)
{
rtc_alarmreg_t alarmreg;
int ret = -EINVAL;
ASSERT(alminfo != NULL);
DEBUGASSERT(RTC_ALARM_LAST > alminfo->as_id);
switch (alminfo->as_id)
{
case RTC_ALARMA:
{
alarmreg = STM32_RTC_ALRMAR;
ret = stm32_rtc_getalarmdatetime(alarmreg,
(struct tm *)alminfo->as_time);
}
break;
case RTC_ALARMB:
{
alarmreg = STM32_RTC_ALRMBR;
ret = stm32_rtc_getalarmdatetime(alarmreg,
(struct tm *)alminfo->as_time);
}
break;
default:
rtcerr("ERROR: Invalid ALARM%d\n", alminfo->as_id);
break;
}
return ret;
}
#endif
#endif /* CONFIG_RTC */

49
arch/arm/src/stm32f7/stm32_rtc_lowerhalf.c
View File

@ -117,6 +117,8 @@ static int stm32_setrelative(FAR struct rtc_lowerhalf_s *lower,
FAR const struct lower_setrelative_s *alarminfo);
static int stm32_cancelalarm(FAR struct rtc_lowerhalf_s *lower,
int alarmid);
static int stm32_rdalarm(FAR struct rtc_lowerhalf_s *lower,
FAR struct lower_rdalarm_s *alarminfo);
#endif
/****************************************************************************
@ -133,6 +135,7 @@ static const struct rtc_ops_s g_rtc_ops =
.setalarm = stm32_setalarm,
.setrelative = stm32_setrelative,
.cancelalarm = stm32_cancelalarm,
.rdalarm = stm32_rdalarm,
#endif
#ifdef CONFIG_RTC_IOCTL
.ioctl = NULL,
@ -519,6 +522,52 @@ static int stm32_cancelalarm(FAR struct rtc_lowerhalf_s *lower, int alarmid)
}
#endif
/****************************************************************************
* Name: stm32_rdalarm
*
* Description:
* Query the RTC alarm.
*
* Input Parameters:
* lower - A reference to RTC lower half driver state structure
* alarminfo - Provided information needed to query the alarm
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned
* on any failure.
*
****************************************************************************/
#ifdef CONFIG_RTC_ALARM
static int stm32_rdalarm(FAR struct rtc_lowerhalf_s *lower,
FAR struct lower_rdalarm_s *alarminfo)
{
struct alm_rdalarm_s lowerinfo;
int ret = -EINVAL;
ASSERT(lower != NULL && alarminfo != NULL && alarminfo->time != NULL);
DEBUGASSERT(alarminfo->id == RTC_ALARMA || alarminfo->id == RTC_ALARMB);
if (alarminfo->id == RTC_ALARMA || alarminfo->id == RTC_ALARMB)
{
/* Disable pre-emption while we do this so that we don't have to worry
* about being suspended and working on an old time.
*/
sched_lock();
lowerinfo.as_id = alarminfo->id;
lowerinfo.as_time = alarminfo->time;
ret = stm32_rtc_rdalarm(&lowerinfo);
sched_unlock();
}
return ret;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/

2
arch/arm/src/stm32l4/stm32l4_rtc.h
View File

@ -91,7 +91,7 @@ struct alm_setalarm_s
struct alm_rdalarm_s
{
int as_id; /* enum alm_id_e */
FAR struct rtc_time *as_time;/* Argument for storing ALARM RTC time */
FAR struct rtc_time *as_time; /* Argument for storing ALARM RTC time */
};
#endif /* CONFIG_RTC_ALARM */