Add GPIO interrupt support and embedded-hal-async trait implementation (#38)

* Add GPIO interrupt support and embedded-hal-async trait implementation

Signed-off-by: Mathis Deroo <[email protected]>

* Run cargo fmt

* Improve GPIO driver interrupt mechanism and example

- GPIO interrupt managed internally at the HAL level,
- Renamed and cleaned gpio_interrupt example; now button_async.rs,
- Use BitIter instead of simple for loop in the irq handler,
- Fix comments and add "rt" wrappen to GPIO IRQ handler.

Signed-off-by: Mathis Deroo <[email protected]>

* Modify INTERRUPT_DETECTED (AtomicBool to AtomicU32) to work with pin number and not only port number interrupt

Signed-off-by: Mathis Deroo <[email protected]>

* add embedded_hal_async::digital::* traits

Signed-off-by: Mathis Deroo <[email protected]>

* Update irq_handler with BitIter loop

Co-authored-by: Felipe Balbi <[email protected]>

* Add suggested changes

Signed-off-by: Mathis Deroo <[email protected]>

* cargo fmt

Signed-off-by: Felipe Balbi <[email protected]>

* WIP: Modify Wakers from AtomicWaker to WaitMap, with pin number (per PORT) as key

Signed-off-by: Mathis Deroo <[email protected]>

* Tweak maitake-sync usage

* Improve docs

* refactor a bit

* Move all of the async+interrupt stuff into a module

* Remove defmt debug traces

Signed-off-by: Mathis Deroo <[email protected]>

* cargo vet

* Move e-hal-async impls into the gated block

* "rt", begone!

---------

Signed-off-by: Mathis Deroo <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
Co-authored-by: Felipe Balbi <[email protected]>
Co-authored-by: Felipe Balbi <[email protected]>
Co-authored-by: Felipe Balbi <[email protected]>
Co-authored-by: James Munns <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index 1022e91df..a1092c416 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -12,7 +12,7 @@ defmt = "1.0"
 defmt-rtt = "1.0"
 embassy-embedded-hal = "0.5.0"
 embassy-executor = { version = "0.9.0", features = ["arch-cortex-m", "executor-interrupt", "executor-thread"], default-features = false }
-embassy-mcxa = { path = "../", features = ["defmt", "rt", "unstable-pac", "time"] }
+embassy-mcxa = { path = "../", features = ["defmt", "unstable-pac", "time"] }
 embassy-sync = "0.7.2"
 embassy-time = "0.5.0"
 embassy-time-driver = "0.2.1"