From 9e445b3583c15c7701f3167eaa8dfe4afd541691 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Tj=C3=A4der?= <henrik@tjaders.com>
Date: Sat, 4 Feb 2023 16:47:17 +0100
Subject: Move rtic macros to repo root, tune xtask

---
 rtic-macros/src/codegen/async_dispatchers.rs | 89 ++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 rtic-macros/src/codegen/async_dispatchers.rs

(limited to 'rtic-macros/src/codegen/async_dispatchers.rs')

diff --git a/rtic-macros/src/codegen/async_dispatchers.rs b/rtic-macros/src/codegen/async_dispatchers.rs
new file mode 100644
index 0000000..a12ad32
--- /dev/null
+++ b/rtic-macros/src/codegen/async_dispatchers.rs
@@ -0,0 +1,89 @@
+use crate::syntax::ast::App;
+use crate::{analyze::Analysis, codegen::util};
+use proc_macro2::TokenStream as TokenStream2;
+use quote::quote;
+
+/// Generates task dispatchers
+pub fn codegen(app: &App, analysis: &Analysis) -> TokenStream2 {
+    let mut items = vec![];
+
+    let interrupts = &analysis.interrupts;
+
+    // Generate executor definition and priority in global scope
+    for (name, _) in app.software_tasks.iter() {
+        let type_name = util::internal_task_ident(name, "F");
+        let exec_name = util::internal_task_ident(name, "EXEC");
+
+        items.push(quote!(
+            #[allow(non_camel_case_types)]
+            type #type_name = impl core::future::Future;
+            #[allow(non_upper_case_globals)]
+            static #exec_name: rtic::export::executor::AsyncTaskExecutor<#type_name> =
+                rtic::export::executor::AsyncTaskExecutor::new();
+        ));
+    }
+
+    for (&level, channel) in &analysis.channels {
+        let mut stmts = vec![];
+
+        let dispatcher_name = if level > 0 {
+            util::suffixed(&interrupts.get(&level).expect("UNREACHABLE").0.to_string())
+        } else {
+            util::zero_prio_dispatcher_ident()
+        };
+
+        let pend_interrupt = if level > 0 {
+            let device = &app.args.device;
+            let enum_ = util::interrupt_ident();
+
+            quote!(rtic::pend(#device::#enum_::#dispatcher_name);)
+        } else {
+            // For 0 priority tasks we don't need to pend anything
+            quote!()
+        };
+
+        for name in channel.tasks.iter() {
+            let exec_name = util::internal_task_ident(name, "EXEC");
+            // TODO: Fix cfg
+            // let task = &app.software_tasks[name];
+            // let cfgs = &task.cfgs;
+
+            stmts.push(quote!(
+                #exec_name.poll(|| {
+                    #exec_name.set_pending();
+                    #pend_interrupt
+                });
+            ));
+        }
+
+        if level > 0 {
+            let doc = format!("Interrupt handler to dispatch async tasks at priority {level}");
+            let attribute = &interrupts.get(&level).expect("UNREACHABLE").1.attrs;
+            items.push(quote!(
+                #[allow(non_snake_case)]
+                #[doc = #doc]
+                #[no_mangle]
+                #(#attribute)*
+                unsafe fn #dispatcher_name() {
+                    /// The priority of this interrupt handler
+                    const PRIORITY: u8 = #level;
+
+                    rtic::export::run(PRIORITY, || {
+                        #(#stmts)*
+                    });
+                }
+            ));
+        } else {
+            items.push(quote!(
+                #[allow(non_snake_case)]
+                unsafe fn #dispatcher_name() -> ! {
+                    loop {
+                        #(#stmts)*
+                    }
+                }
+            ));
+        }
+    }
+
+    quote!(#(#items)*)
+}
-- 
cgit v1.2.3


From e8cebff69e3fd78ade613829c10dd2328495fa44 Mon Sep 17 00:00:00 2001
From: Emil Fresk <emil.fresk@gmail.com>
Date: Mon, 20 Feb 2023 10:49:09 +0100
Subject: Added support for adding codegen to intrrupt entry and exit (needed
 for RISC-V)

---
 rtic-macros/src/codegen/async_dispatchers.rs | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'rtic-macros/src/codegen/async_dispatchers.rs')

diff --git a/rtic-macros/src/codegen/async_dispatchers.rs b/rtic-macros/src/codegen/async_dispatchers.rs
index a12ad32..bdbfeaa 100644
--- a/rtic-macros/src/codegen/async_dispatchers.rs
+++ b/rtic-macros/src/codegen/async_dispatchers.rs
@@ -1,5 +1,11 @@
 use crate::syntax::ast::App;
-use crate::{analyze::Analysis, codegen::util};
+use crate::{
+    analyze::Analysis,
+    codegen::{
+        bindings::{interrupt_entry, interrupt_exit},
+        util,
+    },
+};
 use proc_macro2::TokenStream as TokenStream2;
 use quote::quote;
 
@@ -59,18 +65,25 @@ pub fn codegen(app: &App, analysis: &Analysis) -> TokenStream2 {
         if level > 0 {
             let doc = format!("Interrupt handler to dispatch async tasks at priority {level}");
             let attribute = &interrupts.get(&level).expect("UNREACHABLE").1.attrs;
+            let entry_stmts = interrupt_entry(app, analysis);
+            let exit_stmts = interrupt_exit(app, analysis);
+
             items.push(quote!(
                 #[allow(non_snake_case)]
                 #[doc = #doc]
                 #[no_mangle]
                 #(#attribute)*
                 unsafe fn #dispatcher_name() {
+                    #(#entry_stmts)*
+
                     /// The priority of this interrupt handler
                     const PRIORITY: u8 = #level;
 
                     rtic::export::run(PRIORITY, || {
                         #(#stmts)*
                     });
+
+                    #(#exit_stmts)*
                 }
             ));
         } else {
-- 
cgit v1.2.3