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stm32/rtc: restructure

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This commit is contained in:
xoviat
2023-08-06 11:58:28 -05:00
parent 66c1712118
commit 28618d12a1
4 changed files with 35 additions and 40 deletions
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33
embassy-stm32/src/rtc/mod.rs
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@ -33,19 +33,15 @@ pub struct Rtc<'d, T: Instance> {
rtc_config: RtcConfig,
}
pub(crate) fn enable_rtc(clock_source: RtcClockSource) {
// TODO: rewrite the RTC module so that enable is separated from configure
#[allow(dead_code)]
pub(crate) fn enable(clock_source: RtcClockSource) {
Rtc::<crate::peripherals::RTC>::enable(clock_source);
}
assert!(clock_source == RtcClockSource::LSI || clock_source == RtcClockSource::LSE);
let _ = Rtc::new(
unsafe { crate::Peripherals::steal().RTC },
RtcConfig {
clock_config: clock_source,
async_prescaler: 1,
sync_prescaler: 1,
},
);
#[cfg(feature = "time")]
#[allow(dead_code)]
pub(crate) fn set_wakeup_timer(_duration: embassy_time::Duration) {
todo!()
}
#[derive(Copy, Clone, Debug, PartialEq)]
@ -64,7 +60,7 @@ pub enum RtcClockSource {
#[derive(Copy, Clone, PartialEq)]
pub struct RtcConfig {
/// RTC clock source
clock_config: RtcClockSource,
clock_source: RtcClockSource,
/// Asynchronous prescaler factor
/// This is the asynchronous division factor:
/// ck_apre frequency = RTCCLK frequency/(PREDIV_A+1)
@ -82,7 +78,7 @@ impl Default for RtcConfig {
/// Raw sub-seconds in 1/256.
fn default() -> Self {
RtcConfig {
clock_config: RtcClockSource::LSI,
clock_source: RtcClockSource::LSI,
async_prescaler: 127,
sync_prescaler: 255,
}
@ -91,8 +87,8 @@ impl Default for RtcConfig {
impl RtcConfig {
/// Sets the clock source of RTC config
pub fn clock_config(mut self, cfg: RtcClockSource) -> Self {
self.clock_config = cfg;
pub fn clock_source(mut self, clock_source: RtcClockSource) -> Self {
self.clock_source = clock_source;
self
}
@ -135,7 +131,10 @@ impl<'d, T: Instance> Rtc<'d, T> {
rtc_config,
};
rtc_struct.apply_config(rtc_config);
Self::enable(rtc_config.clock_source);
rtc_struct.configure(rtc_config);
rtc_struct.rtc_config = rtc_config;
rtc_struct
}