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-rw-r--r--expand_lock.rs114
1 files changed, 114 insertions, 0 deletions
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+#![feature(prelude_import)]
+//! examples/lock2.rs
+#![deny(unsafe_code)]
+#![deny(warnings)]
+#![no_main]
+#![no_std]
+#[prelude_import]
+use core::prelude::v1::*;
+#[macro_use]
+extern crate core;
+#[macro_use]
+extern crate compiler_builtins;
+use cortex_m_semihosting::debug;
+use lm3s6965::Interrupt;
+#[allow(non_snake_case)]
+fn init(_: init::Context) {
+ rtic::pend(Interrupt::GPIOA);
+}
+#[allow(non_snake_case)]
+fn gpioa(mut c: gpioa::Context) {
+ use rtic::Mutex as _;
+ c.resources.shared.lock(|shared| {
+ *shared += 1;
+ rtic::pend(Interrupt::GPIOB);
+ });
+ debug::exit(debug::EXIT_SUCCESS);
+}
+#[allow(non_snake_case)]
+fn gpiob(c: gpiob::Context) {
+ use rtic::Mutex as _;
+ *c.resources.shared += 1;
+}
+#[allow(non_snake_case)]
+///Initialization function
+pub mod init {
+ /// Execution context
+ pub struct Context {
+ /// Core (Cortex-M) peripherals
+ pub core: rtic::export::Peripherals,
+ }
+ impl Context {
+ #[inline(always)]
+ pub unsafe fn new(core: rtic::export::Peripherals) -> Self {
+ Context { core }
+ }
+ }
+}
+mod resources {
+ use rtic::export::Priority;
+ #[allow(non_camel_case_types)]
+ pub struct shared<'a> {
+ priority: &'a Priority,
+ }
+ impl<'a> shared<'a> {
+ #[inline(always)]
+ pub unsafe fn new(priority: &'a Priority) -> Self {
+ shared { priority }
+ }
+ #[inline(always)]
+ pub unsafe fn priority(&self) -> &Priority {
+ self.priority
+ }
+ }
+}
+#[allow(non_snake_case)]
+///Resources `gpioa` has access to
+pub struct gpioaResources<'a> {
+ pub shared: resources::shared<'a>,
+}
+#[allow(non_snake_case)]
+///Hardware task
+pub mod gpioa {
+ #[doc(inline)]
+ pub use super::gpioaResources as Resources;
+ /// Execution context
+ pub struct Context<'a> {
+ /// Resources this task has access to
+ pub resources: Resources<'a>,
+ }
+ impl<'a> Context<'a> {
+ #[inline(always)]
+ pub unsafe fn new(priority: &'a rtic::export::Priority) -> Self {
+ Context {
+ resources: Resources::new(priority),
+ }
+ }
+ }
+}
+#[allow(non_snake_case)]
+///Resources `gpiob` has access to
+pub struct gpiobResources<'a> {
+ pub shared: &'a mut u32,
+}
+#[allow(non_snake_case)]
+///Hardware task
+pub mod gpiob {
+ #[doc(inline)]
+ pub use super::gpiobResources as Resources;
+ /// Execution context
+ pub struct Context<'a> {
+ /// Resources this task has access to
+ pub resources: Resources<'a>,
+ }
+ impl<'a> Context<'a> {
+ #[inline(always)]
+ pub unsafe fn new(priority: &'a rtic::export::Priority) -> Self {
+ Context {
+ resources: Resources::new(priority),
+ }
+ }
+ }
+}
+/// Implementation details
+const APP: () = { # [ doc = r" Always include the device crate which contains the vector table" ] use lm3s6965 as _ ; # [ allow ( non_upper_case_globals ) ] static mut shared : u32 = 0 ; impl < 'a > rtic :: Mutex for resources :: shared < 'a > { type T = u32 ; # [ inline ( always ) ] fn lock < R > ( & mut self , f : impl FnOnce ( & mut u32 ) -> R ) -> R { # [ doc = r" Priority ceiling" ] const CEILING : u8 = 2u8 ; unsafe { rtic :: export :: lock ( & mut shared , self . priority ( ) , CEILING , lm3s6965 :: NVIC_PRIO_BITS , f ) } } } # [ allow ( non_snake_case ) ] # [ no_mangle ] unsafe fn GPIOA ( ) { const PRIORITY : u8 = 1u8 ; rtic :: export :: run ( PRIORITY , | | { crate :: gpioa ( gpioa :: Context :: new ( & rtic :: export :: Priority :: new ( PRIORITY ) ) ) } ) ; } impl < 'a > gpioaResources < 'a > { # [ inline ( always ) ] unsafe fn new ( priority : & 'a rtic :: export :: Priority ) -> Self { gpioaResources { shared : resources :: shared :: new ( priority ) , } } } # [ allow ( non_snake_case ) ] # [ no_mangle ] unsafe fn GPIOB ( ) { const PRIORITY : u8 = 2u8 ; rtic :: export :: run ( PRIORITY , | | { crate :: gpiob ( gpiob :: Context :: new ( & rtic :: export :: Priority :: new ( PRIORITY ) ) ) } ) ; } impl < 'a > gpiobResources < 'a > { # [ inline ( always ) ] unsafe fn new ( priority : & 'a rtic :: export :: Priority ) -> Self { gpiobResources { shared : & mut shared , } } } # [ no_mangle ] unsafe extern "C" fn main ( ) -> ! { let _TODO : ( ) = ( ) ; rtic :: export :: interrupt :: disable ( ) ; let mut core : rtic :: export :: Peripherals = core :: mem :: transmute ( ( ) ) ; let _ = [ ( ) ; ( ( 1 << lm3s6965 :: NVIC_PRIO_BITS ) - 1u8 as usize ) ] ; core . NVIC . set_priority ( lm3s6965 :: Interrupt :: GPIOA , rtic :: export :: logical2hw ( 1u8 , lm3s6965 :: NVIC_PRIO_BITS ) ) ; rtic :: export :: NVIC :: unmask ( lm3s6965 :: Interrupt :: GPIOA ) ; let _ = [ ( ) ; ( ( 1 << lm3s6965 :: NVIC_PRIO_BITS ) - 2u8 as usize ) ] ; core . NVIC . set_priority ( lm3s6965 :: Interrupt :: GPIOB , rtic :: export :: logical2hw ( 2u8 , lm3s6965 :: NVIC_PRIO_BITS ) ) ; rtic :: export :: NVIC :: unmask ( lm3s6965 :: Interrupt :: GPIOB ) ; core . SCB . scr . modify ( | r | r | 1 << 1 ) ; let late = crate :: init ( init :: Context :: new ( core . into ( ) ) ) ; rtic :: export :: interrupt :: enable ( ) ; loop { rtic :: export :: wfi ( ) } } };