Commit graph

34 commits

Author SHA1 Message Date
Brett Witherspoon
e363c5e26d drivers: rtc: stm32: use single instance driver
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>
2023-09-18 10:54:04 +01:00
Brett Witherspoon
462a7262be drivers: rtc: stm32: add build assertion for source clock
Assert the source clock is defined in the device tree to ensure the
reference is valid.

Signed-off-by: Brett Witherspoon <brett@witherspoon.engineering>
2023-09-18 10:54:04 +01:00
Brett Witherspoon
0e8e7a0189 drivers: rtc: stm32: fix cell index of source clock
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>
2023-09-18 10:54:04 +01:00
Johan Lafon
24a2b6b004 drivers: rtc: stm32: fix build warning
Use a mem_addr_t cast to avoid build warning.

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-14 14:35:19 +02:00
Johan Lafon
244b437a0d drivers: rtc: stm32: disable calibration for STM32F2 and some STM32L1
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>
2023-09-12 17:23:47 +01:00
Johan Lafon
b06a119f2f drivers: rtc: stm32: fill all rtc_time fields
Set tm_yday and tm_isdst to -1 as theses values are unknown.

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-12 17:23:47 +01:00
Johan Lafon
961c465efb drivers: rtc: stm32: use Zephyr BCD<->bin conversion functions
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>
2023-09-12 17:23:47 +01:00
Johan Lafon
a8b7076099 drivers: rtc: stm32: ensure thread safe operations
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>
2023-09-12 17:23:47 +01:00
Johan Lafon
e46aff5902 drivers: rtc: stm32: avoid using LL_RTC_Init
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>
2023-09-12 17:23:47 +01:00
Johan Lafon
a4f5f87e29 drivers: rtc: stm32: avoid infinite blocking loop
Use the less CPU intensive and timeout capable WAIT_FOR zephyr provided
macro

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-12 17:23:47 +01:00
Johan Lafon
cdab80eece drivers: rtc: stm32: avoid reset induced time drift
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>
2023-09-12 17:23:47 +01:00
Johan Lafon
9e202e57e9 drivers: rtc: stm32: avoid potential erroneous readings
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>
2023-09-12 17:23:47 +01:00
Johan Lafon
4eac3db1b9 drivers: rtc: stm32: check if tm_wday is set
tm/rtc_time structure allow for tm_wday to be set to -1 if unknown but RTC
is expecting it

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-12 17:23:47 +01:00
Johan Lafon
f0b3e4e850 drivers: rtc: stm32: check if year is supported by RTC
RTC does not support year before 2000 while tm/rtc_time structure
reference year is 1900

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-12 17:23:47 +01:00
Johan Lafon
16de401e79 drivers: rtc: stm32: fix day of the week conversion
The conversion used was working but not consistent with values given by
reference manuals.

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-12 17:23:47 +01:00
Johan Lafon
29fa718941 drivers: rtc: stm32: fix wrong nanosecond value
SSR register does not contain direct nanosecond value. This adds the
necessary conversion.

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-12 17:23:47 +01:00
Johan Lafon
8aa6531aed drivers: rtc: stm32: add calibration feature
This adds the set_calibration and get_calibration API functions to the
STM32 RTC driver

Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
2023-09-12 17:23:47 +01:00
Kim Bøndergaard
b3c46083fb drivers: rtc: stm32: New stm32 RTC driver
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>
2023-07-18 11:05:23 +00:00
Kumar Gala
29e55d74e8 rtc: Remove old rtc functionality
Remove the old rtc functionality as its been deprecated for 2 releases
now.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-09-14 07:33:38 -05:00
Anas Nashif
a2fd7d70ec cleanup: include/: move misc/util.h to sys/util.h
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>
2019-06-27 22:55:49 -04:00
Anas Nashif
fd359c21e9 cleanup: include/: move rtc.h to drivers/rtc.h
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>
2019-06-27 22:55:49 -04:00
Anas Nashif
17ddd1714c cleanup: include/: move clock_control.h to drivers/clock_control.h
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>
2019-06-27 22:55:49 -04:00
Anas Nashif
f2cb20c772 docs: fix misspelling across the tree
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>
2019-06-19 15:34:13 -05:00
Anas Nashif
4c32258606 style: add braces around if/while statements
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>
2019-06-06 15:20:21 +02:00
Georgij Cernysiov
bc4825d6bf drivers: rtc: stm32: correct tm_mon conversion
tm_mon valid interval [0,11]
LL_RTC_DateTypeDef.Month valid interval [1,12]

Signed-off-by: Georgij Cernysiov <g.cernysiov@elco-automation.de>
2019-05-27 09:16:30 -04:00
Erwan Gouriou
d2e305491f soc: stm32: Convert CONFIG_RTC leftover to DT_
Convert CONFIG_RTC_0_IRQ_PRI to DT_ namespace.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2019-02-07 16:14:00 -05:00
Kumar Gala
e76ea6cf9d rtc: stm32: Remove trivial endif comment
Removed the endif comment as the Kconfig symbol it referenced didn't
exist.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-01-31 09:06:59 -06:00
Erwan Gouriou
9062e97a45 drivers: stm32: check clock_control_on return value
Check clock_control_on return value now that it is checking appropriate
bus is used in the request.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2018-12-07 11:31:48 -05:00
Andrzej Głąbek
20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Kumar Gala
aa2bdbe322 drivers: Remove board.h include
We either don't need board.h in the driver or we should be include soc.h
instead.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-01 13:21:11 -04:00
Christian Taedcke
2e06fd50fd drivers/rtc: Enable RTC driver for STM32F7 series
Enable RTC driver for STM32F7 series.

Signed-off-by: Christian Taedcke <hacking@taedcke.com>
2018-10-23 09:19:15 +01:00
Yannis Damigos
0c1725116a drivers/rtc: Enable RTC driver for STM32F3 series
Enable RTC driver for STM32F3 series.

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2018-09-14 22:48:54 -05:00
Yannis Damigos
10c763cfbc drivers/rtc: Enable RTC driver for STM32F4 series
Enable RTC driver for STM32F4 series.

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2018-09-14 22:48:54 -05:00
Kiril Zyapkov
0d47ae4fca drivers: rtc: add support for STM32 RTC
Add support for the STM32 Real-Time-Clock leveraging the LL APIs

Signed-off-by: Johannes Hutter <johannes@proglove.de>
Signed-off-by: Kiril Zyapkov <k.zyapkov@allterco.com>
2018-08-16 13:38:43 -07:00