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stm32/bd: consolidate enable_rtc

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This commit is contained in:
xoviat 2023-08-28 15:34:08 -05:00
parent b315c28d4e
commit 70a5221b2e
1 changed files with 7 additions and 32 deletions
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39
embassy-stm32/src/rcc/bd.rs
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@ -87,13 +87,14 @@ impl BackupDomain {
}
#[cfg(any(
rtc_v2f0, rtc_v2f2, rtc_v2f3, rtc_v2f4, rtc_v2f7, rtc_v2h7, rtc_v2l0, rtc_v2l1, rtc_v2l4, rtc_v2wb
rtc_v2f0, rtc_v2f2, rtc_v2f3, rtc_v2f4, rtc_v2f7, rtc_v2h7, rtc_v2l0, rtc_v2l1, rtc_v2l4, rtc_v2wb, rtc_v3,
rtc_v3u5
))]
#[allow(dead_code)]
pub fn enable_rtc() {
let reg = Self::read();
#[cfg(any(rtc_v2h7, rtc_v2l4, rtc_v2wb))]
#[cfg(any(rtc_v2h7, rtc_v2l4, rtc_v2wb, rtc_v3, rtc_v3u5))]
assert!(!reg.lsecsson(), "RTC is not compatible with LSE CSS, yet.");
if !reg.rtcen() {
@ -102,47 +103,21 @@ impl BackupDomain {
Self::modify(|w| {
// Reset
#[cfg(not(any(rtc_v2l0, rtc_v2l1)))]
#[cfg(not(any(rtc_v2l0, rtc_v2l1, rtc_v2f2)))]
w.set_bdrst(false);
w.set_rtcen(true);
w.set_rtcsel(reg.rtcsel());
// Restore bcdr
#[cfg(any(rtc_v2l4, rtc_v2wb))]
#[cfg(any(rtc_v2l4, rtc_v2wb, rtc_v3, rtc_v3u5))]
w.set_lscosel(reg.lscosel());
#[cfg(any(rtc_v2l4, rtc_v2wb))]
#[cfg(any(rtc_v2l4, rtc_v2wb, rtc_v3, rtc_v3u5))]
w.set_lscoen(reg.lscoen());
w.set_lseon(reg.lseon());
#[cfg(any(rtc_v2f0, rtc_v2f7, rtc_v2h7, rtc_v2l4, rtc_v2wb))]
w.set_lsedrv(reg.lsedrv());
w.set_lsebyp(reg.lsebyp());
});
}
}
#[cfg(any(rtc_v3, rtc_v3u5))]
#[allow(dead_code)]
pub fn enable_rtc() {
let reg = Self::read();
assert!(!reg.lsecsson(), "RTC is not compatible with LSE CSS, yet.");
if !reg.rtcen() {
Self::modify(|w| w.set_bdrst(true));
Self::modify(|w| {
w.set_bdrst(false);
w.set_rtcen(true);
w.set_rtcsel(reg.rtcsel());
// Restore bcdr
w.set_lscosel(reg.lscosel());
w.set_lscoen(reg.lscoen());
w.set_lseon(reg.lseon());
#[cfg(any(rtc_v2f0, rtc_v2f7, rtc_v2h7, rtc_v2l4, rtc_v2wb, rtc_v3, rtc_v3u5))]
w.set_lsedrv(reg.lsedrv());
w.set_lsebyp(reg.lsebyp());
});