Implementation of RTC driver

boards/seeed_studio_lora_e5_mini/src/main.rs

@@ -1,6 +1,6 @@
 // Licensed under the Apache License, Version 2.0 or the MIT License.
 // SPDX-License-Identifier: Apache-2.0 OR MIT
-// Copyright Tock Contributors 2025.
+// Copyright Tock Contributors 2026.
 
 //! Board file for STM32WLE5JC Seeed Studio LoRa E5 HF mini development board.
 //!
@@ -104,6 +104,10 @@ struct SeeedStudioLoraE5Mini {
         'static,
         stm32wle5jc::i2c::I2C<'static>,
     >,
+    date_time: &'static capsules_extra::date_time::DateTimeCapsule<
+        'static,
+        stm32wle5jc::rtc::Rtc<'static>,
+    >,
 }
 
 /// Mapping of integer syscalls to objects that implement syscalls.
@@ -119,6 +123,7 @@ impl SyscallDriverLookup for SeeedStudioLoraE5Mini {
             LORA_SPI_DRIVER_NUM => f(Some(self.lora_spi_controller)),
             LORA_GPIO_DRIVER_NUM => f(Some(self.lora_gpio)),
             capsules_core::i2c_master::DRIVER_NUM => f(Some(self.i2c_master)),
+            capsules_extra::date_time::DRIVER_NUM => f(Some(self.date_time)),
             _ => f(None),
         }
     }
@@ -178,6 +183,10 @@ unsafe fn setup_peripherals(tim2: &stm32wle5jc::tim2::Tim2, subghz_spi: &stm32wl
 
     cortexm4::nvic::Nvic::new(stm32wle5jc::nvic::I2C2_EV).enable();
     cortexm4::nvic::Nvic::new(stm32wle5jc::nvic::I2C2_ER).enable();
+
+    // RTC interrupts
+    cortexm4::nvic::Nvic::new(stm32wle5jc::nvic::RTC_WKUP).enable();
+    cortexm4::nvic::Nvic::new(stm32wle5jc::nvic::RTC_Alarm).enable();
 }
 
 /// Statically initialize the core peripherals for the chip.
@@ -205,9 +214,11 @@ unsafe fn create_peripherals() -> &'static mut Stm32wle5jcDefaultPeripherals<'st
         stm32wle5jc::exti::Exti::new(syscfg)
     );
 
+    let pwr = static_init!(stm32wle5jc::pwr::Pwr, stm32wle5jc::pwr::Pwr::new());
+
     let peripherals = static_init!(
         Stm32wle5jcDefaultPeripherals,
-        Stm32wle5jcDefaultPeripherals::new(clocks, exti, syscfg)
+        Stm32wle5jcDefaultPeripherals::new(clocks, exti, syscfg, pwr)
     );
 
     peripherals
@@ -333,7 +344,7 @@ pub unsafe fn main() {
             gpio_ports.get_pin(stm32wle5jc::gpio::PinId::PB08).unwrap(),
         );
 
-    base_peripherals.subghz_spi.set_nss(&base_peripherals.pwr);
+    base_peripherals.subghz_spi.set_nss(base_peripherals.pwr);
 
     let lora_spi_mux = components::spi::SpiMuxComponent::new(&base_peripherals.subghz_spi)
         .finalize(components::spi_mux_component_static!(
@@ -365,7 +376,7 @@ pub unsafe fn main() {
 
     let lora_busy_base = static_init!(
         stm32wle5jc::subghz_radio::SubGhzRadioBusy,
-        stm32wle5jc::subghz_radio::SubGhzRadioBusy::new(&base_peripherals.pwr)
+        stm32wle5jc::subghz_radio::SubGhzRadioBusy::new(base_peripherals.pwr)
     );
     let lora_busy_pin = static_init!(
         stm32wle5jc::subghz_radio::SubGhzRadioVirtualGpio,
@@ -421,7 +432,29 @@ pub unsafe fn main() {
     });
 
     // Uncomment to run I2C scan test
-    //test::i2c_dummy::i2c_scan_slaves(&base_peripherals.i2c2);
+    // test::i2c_dummy::i2c_scan_slaves(&base_peripherals.i2c2);
+
+    //--------------------------------------------------------------------
+    // RTC
+    //--------------------------------------------------------------------
+    if let Err(e) = base_peripherals.rtc.rtc_init() {
+        panic!("RTC init failed: {:?}", e);
+    }
+
+    let rtc = &base_peripherals.rtc;
+
+    let date_time = components::date_time::DateTimeComponent::new(
+        board_kernel,
+        capsules_extra::date_time::DRIVER_NUM,
+        rtc,
+    )
+    .finalize(components::date_time_component_static!(
+        stm32wle5jc::rtc::Rtc<'static>
+    ));
+
+    // Note: this replaces date_time as the RTC client — comment out the `DateTimeComponent``
+    // block above when testing. Uncomment to run RTC test sequence.
+    // test::rtc_dummy::run_complete_rtc_test(rtc);
 
     //--------------------------------------------------------------------
     // PROCESS CONSOLE
@@ -452,6 +485,7 @@ pub unsafe fn main() {
         lora_spi_controller,
         lora_gpio,
         i2c_master,
+        date_time,
     };
 
     assert!(base_peripherals.subghz_spi.is_enabled_clock());

boards/seeed_studio_lora_e5_mini/src/test/mod.rs

@@ -3,3 +3,4 @@
 // Copyright Tock Contributors 2022.
 
 pub(crate) mod i2c_dummy;
+pub(crate) mod rtc_dummy;