From a93714327eb85b02c7c4a419f2a76df579258975 Mon Sep 17 00:00:00 2001
From: Henrik Berg <henrik1965@gmail.com>
Date: Tue, 11 Jul 2023 18:41:45 +0200
Subject: [PATCH] RP: Rename Rtc to match STM32 impl. Remove setting RTC in
 new().

---
 embassy-rp/src/rtc/mod.rs  | 20 +++++++++-----------
 examples/rp/src/bin/rtc.rs | 14 ++++++++++----
 2 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/embassy-rp/src/rtc/mod.rs b/embassy-rp/src/rtc/mod.rs
index b18f12fc..90b796a9 100644
--- a/embassy-rp/src/rtc/mod.rs
+++ b/embassy-rp/src/rtc/mod.rs
@@ -12,26 +12,24 @@ pub use self::datetime::{DateTime, DayOfWeek, Error as DateTimeError};
 use crate::clocks::clk_rtc_freq;
 
 /// A reference to the real time clock of the system
-pub struct RealTimeClock<'d, T: Instance> {
+pub struct Rtc<'d, T: Instance> {
     inner: PeripheralRef<'d, T>,
 }
 
-impl<'d, T: Instance> RealTimeClock<'d, T> {
+impl<'d, T: Instance> Rtc<'d, T> {
     /// Create a new instance of the real time clock, with the given date as an initial value.
     ///
     /// # Errors
     ///
     /// Will return `RtcError::InvalidDateTime` if the datetime is not a valid range.
-    pub fn new(inner: impl Peripheral<P = T> + 'd, initial_date: DateTime) -> Result<Self, RtcError> {
+    pub fn new(inner: impl Peripheral<P = T> + 'd) -> Self {
         into_ref!(inner);
 
         // Set the RTC divider
         inner.regs().clkdiv_m1().write(|w| w.set_clkdiv_m1(clk_rtc_freq() - 1));
 
-        let mut result = Self { inner };
-        result.set_leap_year_check(true); // should be on by default, make sure this is the case.
-        result.set_datetime(initial_date)?;
-        Ok(result)
+        let result = Self { inner };
+        result
     }
 
     /// Enable or disable the leap year check. The rp2040 chip will always add a Feb 29th on every year that is divisable by 4, but this may be incorrect (e.g. on century years). This function allows you to disable this check.
@@ -43,7 +41,7 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
         });
     }
 
-    /// Checks to see if this RealTimeClock is running
+    /// Checks to see if this Rtc is running
     pub fn is_running(&self) -> bool {
         self.inner.regs().ctrl().read().rtc_active()
     }
@@ -113,8 +111,8 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
     /// # fn main() { }
     /// # #[cfg(not(feature = "chrono"))]
     /// # fn main() {
-    /// # use embassy_rp::rtc::{RealTimeClock, DateTimeFilter};
-    /// # let mut real_time_clock: RealTimeClock<embassy_rp::peripherals::RTC> = unsafe { core::mem::zeroed() };
+    /// # use embassy_rp::rtc::{Rtc, DateTimeFilter};
+    /// # let mut real_time_clock: Rtc<embassy_rp::peripherals::RTC> = unsafe { core::mem::zeroed() };
     /// let now = real_time_clock.now().unwrap();
     /// real_time_clock.schedule_alarm(
     ///     DateTimeFilter::default()
@@ -150,7 +148,7 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
     }
 }
 
-/// Errors that can occur on methods on [RealTimeClock]
+/// Errors that can occur on methods on [Rtc]
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum RtcError {
     /// An invalid DateTime was given or stored on the hardware.
diff --git a/examples/rp/src/bin/rtc.rs b/examples/rp/src/bin/rtc.rs
index a49c8f62..6300950d 100644
--- a/examples/rp/src/bin/rtc.rs
+++ b/examples/rp/src/bin/rtc.rs
@@ -4,7 +4,7 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_rp::rtc::{DateTime, DayOfWeek, RealTimeClock};
+use embassy_rp::rtc::{DateTime, DayOfWeek, Rtc};
 use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
@@ -23,11 +23,17 @@ async fn main(_spawner: Spawner) {
         second: 50,
     };
 
-    let rtc_result = RealTimeClock::new(p.RTC, now);
-    if let Ok(rtc) = rtc_result {
+    let mut rtc = Rtc::new(p.RTC);
+    if rtc.set_datetime(now).is_ok() {
         // In reality the delay would be much longer
         Timer::after(Duration::from_millis(20000)).await;
 
-        let _then: DateTime = rtc.now().unwrap();
+        if let Ok(dt) = rtc.now() {
+            info!(
+                "Now: {}-{}-{} {}:{}:{}",
+                dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second,
+            );
+        }
     }
+    info!("Done.");
 }