From f86dab5ff3e9c35e9e68b798b5c4faa08d390085 Mon Sep 17 00:00:00 2001 From: Per Lindgren Date: Fri, 21 Jan 2022 21:49:45 +0100 Subject: Added support for SRP based scheduling for armv6m --- macros/src/codegen/shared_resources.rs | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'macros/src/codegen/shared_resources.rs') diff --git a/macros/src/codegen/shared_resources.rs b/macros/src/codegen/shared_resources.rs index 9e45cff9..a016e453 100644 --- a/macros/src/codegen/shared_resources.rs +++ b/macros/src/codegen/shared_resources.rs @@ -105,5 +105,38 @@ pub fn codegen( }) }; + // Computing mapping of used interrupts to masks + let interrupt_ids = analysis.interrupts.iter().map(|(p, (id, _))| (p, id)); + + use std::collections::HashMap; + let mut masks: HashMap = std::collections::HashMap::new(); + let device = &extra.device; + + for p in 0..3 { + masks.insert(p, quote!(0)); + } + + for (&priority, name) in interrupt_ids.chain(app.hardware_tasks.values().flat_map(|task| { + if !util::is_exception(&task.args.binds) { + Some((&task.args.priority, &task.args.binds)) + } else { + // TODO: exceptions not implemented + None + } + })) { + let name = quote!(#device::Interrupt::#name as u32); + if let Some(v) = masks.get_mut(&(priority - 1)) { + *v = quote!(#v | 1 << #name); + }; + } + + let mut mask_arr: Vec<(_, _)> = masks.iter().collect(); + mask_arr.sort_by_key(|(k, _v)| *k); + let mask_arr: Vec<_> = mask_arr.iter().map(|(_, v)| v).collect(); + + mod_app.push(quote!( + const MASKS: [u32; 3] = [#(#mask_arr),*]; + )); + (mod_app, mod_resources) } -- cgit v1.2.3