Use recently added SoCs functions to request access to SoC backup
domain resources These function use a reference counter to track these
request and ensure the resources are accessible as long as at least a
consumer requires access.
By the way, move inclusion of stm32_hsem.h header file after inclusion
of the LL header files and Zephyr header standard files.
Fixes issue 90942.
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
RTC alarm is not supported by the driver for now due to the complexity it
would take to work around an hardware erratum. However, it is not possible
to prevent CONFIG_RTC_ALARM from being enabled at Kconfig level.
Modify the RTC driver such that enabling CONFIG_RTC_ALARM on STM32WB0
series does not cause build errors anymore.
Signed-off-by: Mathieu Choplain <mathieu.choplain@st.com>
Add support for HSE as the RTC clock source.
The initial implementation has the following limitations:
- Only whole MHz HSE frequency is supported, e.g. 24.5 MHz will generate a
compile error.
- Frequencies equal or above 64 MHz are not supported and will generate a
compile error.
The implementation has been tested on nucleo_h563zi with:
- 8 MHz (via hse-bypass)
- 25 MHz (via external crystal)
Signed-off-by: Jeppe Odgaard <jeppe.odgaard@prevas.dk>
Replace DIV_ROUND_CLOSEST() with a normal division to simplify
operation and avoid redundant handling of signed integer rounding
as the temp value is an unsigned value. The temp value is in nano
precision, so rounding is largely inconsequencial anyway compared
to the comparatively low precision sync prescaler.
Signed-off-by: Bjarki Arge Andreasen <bjarki@arge-andreasen.me>
Note that the Init of the alarm has no need for BCD2BIN conversion,
the LL_RTC_ALMx_Init will do. Add more log debug
The driver must clear the ALARM enable bit before wrting the alarm
registers.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Set a Calendar using the LL functions LL_RTC_TIME_Init
and LL_RTC_DATE_Init. Add more DBG info
On the stm32F2 serie, check RS Flag after setting calendar registers.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
On STM32WBAX series, there is no bit in BCDR register to enable RTC.
Enabling RTC is done directly via the RCC APB register bit.
Signed-off-by: Abderrahmane Jarmouni <abderrahmane.jarmouni-ext@st.com>
Use LL_RTC_EnterInitMode and LL_RTC_DisableInitMode instead
of rtc_stm32_enter_initialization_mode and
rtc_stm32_leave_initialization_mode.
Signed-off-by: Petr Hlineny <development@hlineny.cz>
When device runtime pm is enabled, Backup Domain protection is active
most of the time. RTC driver need this protection to be disabled in
order to set the time or calibration. This fix disable the protection in
set time and set calibration functions.
Fixes: 62843
Signed-off-by: Petr Hlineny <development@hlineny.cz>
This change marks each instance of the 'rtc_driver_api' as 'static const'.
The rationale is that 'rtc_driver_api' is used for declaring internal
module interfaces and is not intended to be modified at runtime.
By using 'static const', we ensure immutability, leading to usage of only
.rodata and a reduction in the .data area.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
rtc_get_time() on STM32 does not implement the -ENODATA return code.
This prevents testing the initialisation status of the RTC.
Fixed by reading INITS flag and adding a error path in
rtc_stm32_get_time().
Signed-off-by: Adrien Bruant <adrien.bruant@aalberts-hfc.com>
The Cat.1 STM32L1 MCUs do not provide the subsecond feature. This disable
subsecond related code for these MCUs.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
STM32 BBRAM depends on RTC to work. This changes STM32 RTC init stage to
PRE_KERNEL_1 to allow RTC driver to initialize before BBRAM driver.
Some adjustments are made so that kernel API is not used during the init
procedure.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
This driver only supports a single instance. This commit cleans up the
device definition and indicates this.
Signed-off-by: Brett Witherspoon <brett@witherspoon.engineering>
Assert the source clock is defined in the device tree to ensure the
reference is valid.
Signed-off-by: Brett Witherspoon <brett@witherspoon.engineering>
The DT_INST_CLOCKS_CELL macro takes as the first argument the device
instance and not the cell index. This change correctly gets the second
index of the first device as intended.
Signed-off-by: Brett Witherspoon <brett@witherspoon.engineering>
STM32F2 and STM32L1 Cat. 1 only provide the coarse calibration feature
which is not supported by the code yet.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
This replaces the verbose LL_RTC_CONVERT_BCD2BIN and LL_RTC_CONVERT_BIN2BCD
by the bcd2bin and bin2bcd Zephyr provided equivalent
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
This adds mutex a lock in rtc_stm32_set_time and rtc_stm32_get_time to
ensure consistent data reading. Also performs register reading in a single
operation in rtc_stm32_get_calibration for the same reason.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
LL_RTC_Init() internally uses LL_RTC_EnterInitMode() wich uses a blocking
while loop. This rewrite uses the less CPU time wasteful local
rtc_stm32_enter_initialization_mode() instead. As a side effect
LL_RTC_InitTypeDef in rtc_stm32_config is not needed anymore.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
Calling LL_RTC_Init causes the RTC to stop while being configured thus
inducing time drift. This commit avoids doing it at each reset if the RTC
is already properly configured.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
As shadow registers bypass is enabled, an erroneous reading may occur at
each day or second increment. This commit fixes this issue.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
STM32 RTC driver for the new RTC API.
Can't coexist with old COUNTER based RTC
Though supported by HW, RTC_ALARM still to be supported by driver
Signed-off-by: Kim Bøndergaard <kim.bondergaard@prevas.dk>
move misc/util.h to sys/util.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move rtc.h to drivers/rtc.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move clock_control.h to drivers/clock_control.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Found a few annoying typos and figured I better run script and
fix anything it can find, here are the results...
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Per guidelines, all statements should have braces around them. We do not
have a CI check for this, so a few went in unnoticed.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Etienne Carriere
Jeppe Odgaard
Mathieu Choplain
Bjarki Arge Andreasen
Bjarki Arge Andreasen
Francois Ramu
Abderrahmane Jarmouni
Mustafa Abdullah Kus
Petr Hlineny
Pisit Sawangvonganan
Adrien Bruant
Johan Lafon
Brett Witherspoon
Kim Bøndergaard
Kumar Gala
Anas Nashif
Georgij Cernysiov