# Kconfig - STM32 RTC configuration options
#
# Copyright (c) 2018 Workaround GmbH
# Copyright (c) 2018 Allterco Robotics
#
# SPDX-License-Identifier: Apache-2.0
#

config RTC_STM32
	bool "STM32 RTC Driver"
	depends on SOC_FAMILY_STM32
	select USE_STM32_LL_RTC
	select USE_STM32_LL_PWR
	select USE_STM32_LL_RCC
	select USE_STM32_LL_EXTI
	select NEWLIB_LIBC
	help
	  Build RTC driver for STM32x4 SoCs. Tested on STM32L4 series.

choice RTC_STM32_CLOCK_SRC
	bool "RTC clock source"
	depends on RTC_STM32

config RTC_STM32_CLOCK_LSI
	bool "LSI"
	help
	  Use LSI as RTC clock

config RTC_STM32_CLOCK_LSE
	bool "LSE"
	help
	  Use LSE as RTC clock

endchoice #RTC_STM32_CLOCK_SRC

choice RTC_STM32_LSE_DRIVE
	prompt "LSE oscillator drive capability"
	depends on RTC_STM32_CLOCK_LSE

config RTC_STM32_LSE_DRIVE_LOW
	bool "Low"
	help
	  Xtal mode lower driving capability

config RTC_STM32_LSE_DRIVE_MEDIUMLOW
	bool "Medium Low"
	help
	  Xtal mode medium low driving capability

config RTC_STM32_LSE_DRIVE_MEDIUMHIGH
	bool "Medium High"
	help
	  Xtal mode medium high driving capability

config RTC_STM32_LSE_DRIVE_HIGH
	bool "High"
	help
	  Xtal mode higher driving capability

endchoice

config RTC_STM32_LSE_DRIVE_STRENGTH
	hex
	default 0x00000000 if RTC_STM32_LSE_DRIVE_LOW
	default 0x00000008 if RTC_STM32_LSE_DRIVE_MEDIUMLOW
	default 0x00000010 if RTC_STM32_LSE_DRIVE_MEDIUMHIGH
	default 0x00000018 if RTC_STM32_LSE_DRIVE_HIGH