bootloader: Mark jump_to_application() as noreturn.

[gps-watch.git] / src / bootloader / main.rs

diff --git a/src/bootloader/main.rs b/src/bootloader/main.rs
index ca459fdc2eccf1c406b52b6423e8d40aab307be9..321166c55a55f9bde891b5ec32db1ae804d3f8ce 100644 (file)
--- a/src/bootloader/main.rs
+++ b/src/bootloader/main.rs
@@ -35,12 +35,16 @@ use common::clock;
 use common::systick;
 use common::port;
 use common::gpio;
+use common::watchdog;
 use common::usb_serial;
 
 type Reg32 = register::Register<u32>;
 
 extern {
-    fn jump_to_application(address: u32);
+    fn enable_interrupts();
+    fn disable_interrupts();
+
+    fn jump_to_application(address: u32) -> !;
 }
 
 #[cfg(bootloader_type = "intermediate")]
@@ -61,6 +65,12 @@ unsafe fn application_missing() -> bool {
     first_app_word.read() == 0xffffffff
 }
 
+#[cfg(bootloader_type = "intermediate")]
+fn bootloader_requested() -> bool {
+    true
+}
+
+#[cfg(bootloader_type = "final")]
 fn bootloader_requested() -> bool {
     let start_ticks = systick::now();
 
@@ -75,6 +85,7 @@ fn bootloader_requested() -> bool {
 
 #[no_mangle]
 pub unsafe extern fn main() {
+    watchdog::disable();
     clock::configure();
     systick::init();
     port::init();
@@ -84,6 +95,8 @@ pub unsafe extern fn main() {
     port::set_af(port::PORTE, 24, 1);
     port::set_pull(port::PORTE, 24, port::Pull::Up);
 
+    enable_interrupts();
+
     if application_missing() || bootloader_requested() {
         usb_serial::init(0xf055, USB_PID);
 
@@ -95,5 +108,9 @@ pub unsafe extern fn main() {
         usb_serial::shutdown();
     }
 
+    disable_interrupts();
+
+    clock::reset();
+
     jump_to_application(APPLICATION_ADDR);
 }