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Don't use interrupts reserved by esp-hal

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Excluding the reserved interrupts fixes the task priorities. I also
considered refactoring `rtic/src/export/riscv_esp32c6.rs` to use esp-hal
instead of esp32c6 directly as it has code to do all the pointer
wrangling itself, but decided against it for now. It might be nice to
refactor both esp implentations to use it though.
This commit is contained in:
Eli Hastings 2025-03-21 16:27:58 +00:00 • committed by Henrik Tjäder
parent c6fbbaaae8
commit 0615841cb8
2 changed files with 16 additions and 38 deletions
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18
rtic-macros/src/codegen/bindings/esp32c6.rs
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@ -13,11 +13,10 @@ mod esp32c6 {
use std::collections::HashSet;
use syn::{parse, Attribute, Ident};
// Section 1.6.2 technical reference manual specifies which interrupts can be configured.
const EXTERNAL_INTERRUPTS: [u8; 28] = [
1, 2, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
28, 29, 30, 31,
];
// esp-hal reserves interrupts 1-19:
// https://github.com/esp-rs/esp-hal/blob/esp-hal-v1.0.0-beta.0/esp-hal/src/interrupt/riscv.rs#L200
// https://github.com/esp-rs/esp-hal/blob/esp-hal-v1.0.0-beta.0/esp-hal/src/interrupt/riscv.rs#L725
const EXTERNAL_INTERRUPTS: [u8; 12] = [20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31];
#[allow(clippy::too_many_arguments)]
pub fn impl_mutex(
@ -243,12 +242,9 @@ mod esp32c6 {
)
.zip(EXTERNAL_INTERRUPTS)
{
// interrupt1...interrupt19 are already defined in esp_hal
if curr_cpu_id > 19 {
if *name == dispatcher_name {
let ret = &("interrupt".to_owned() + &curr_cpu_id.to_string());
stmts.push(quote!(#[export_name = #ret]));
}
if *name == dispatcher_name {
let ret = &("interrupt".to_owned() + &curr_cpu_id.to_string());
stmts.push(quote!(#[export_name = #ret]));
}
}