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Merge branch 'main' of https://github.com/embassy-rs/embassy into can

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xoviat 2023-06-19 15:52:33 -05:00
commit aaad906815
253 changed files with 8629 additions and 8368 deletions
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44
.github/ci/doc.sh vendored Executable file
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@ -0,0 +1,44 @@
#!/bin/bash
## on push branch=main
set -euo pipefail
export RUSTUP_HOME=/ci/cache/rustup
export CARGO_HOME=/ci/cache/cargo
export CARGO_TARGET_DIR=/ci/cache/target
export BUILDER_THREADS=6
export BUILDER_COMPRESS=true
# force rustup to download the toolchain before starting building.
# Otherwise, the docs builder is running multiple instances of cargo rustdoc concurrently.
# They all see the toolchain is not installed and try to install it in parallel
# which makes rustup very sad
rustc --version > /dev/null
docserver-builder -i ./embassy-stm32 -o crates/embassy-stm32/git.zup
docserver-builder -i ./embassy-boot/boot -o crates/embassy-boot/git.zup
docserver-builder -i ./embassy-boot/nrf -o crates/embassy-boot-nrf/git.zup
docserver-builder -i ./embassy-boot/rp -o crates/embassy-boot-rp/git.zup
docserver-builder -i ./embassy-boot/stm32 -o crates/embassy-boot-stm32/git.zup
docserver-builder -i ./embassy-embedded-hal -o crates/embassy-embedded-hal/git.zup
docserver-builder -i ./embassy-executor -o crates/embassy-executor/git.zup
docserver-builder -i ./embassy-futures -o crates/embassy-futures/git.zup
docserver-builder -i ./embassy-lora -o crates/embassy-lora/git.zup
docserver-builder -i ./embassy-net -o crates/embassy-net/git.zup
docserver-builder -i ./embassy-net-driver -o crates/embassy-net-driver/git.zup
docserver-builder -i ./embassy-net-driver-channel -o crates/embassy-net-driver-channel/git.zup
docserver-builder -i ./embassy-nrf -o crates/embassy-nrf/git.zup
docserver-builder -i ./embassy-rp -o crates/embassy-rp/git.zup
docserver-builder -i ./embassy-sync -o crates/embassy-sync/git.zup
docserver-builder -i ./embassy-time -o crates/embassy-time/git.zup
docserver-builder -i ./embassy-usb -o crates/embassy-usb/git.zup
docserver-builder -i ./embassy-usb-driver -o crates/embassy-usb-driver/git.zup
docserver-builder -i ./embassy-usb-logger -o crates/embassy-usb-logger/git.zup
docserver-builder -i ./cyw43 -o crates/cyw43/git.zup
docserver-builder -i ./cyw43-pio -o crates/cyw43-pio/git.zup
docserver-builder -i ./embassy-net-w5500 -o crates/embassy-net-w5500/git.zup
docserver-builder -i ./embassy-stm32-wpan -o crates/embassy-stm32-wpan/git.zup
export KUBECONFIG=/ci/secrets/kubeconfig.yml
POD=$(kubectl -n embassy get po -l app=docserver -o jsonpath={.items[0].metadata.name})
kubectl cp crates $POD:/data

87
.github/workflows/doc.yml vendored
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@ -1,87 +0,0 @@
name: Docs
on:
push:
branches: [main]
env:
BUILDER_THREADS: '1'
jobs:
doc:
runs-on: ubuntu-latest
# Since stm32 crates take SO LONG to build, we split them
# into a separate job. This way it doesn't slow down updating
# the rest.
strategy:
matrix:
crates:
#- stm32 # runs out of disk space...
- rest
# This will ensure at most one doc build job is running at a time
# (for stm32 and non-stm32 independently).
# If another job is already running, the new job will wait.
# If another job is already waiting, it'll be canceled.
# This means some commits will be skipped, but that's fine because
# we only care that the latest gets built.
concurrency: doc-${{ matrix.crates }}
steps:
- uses: actions/checkout@v3
with:
submodules: true
- name: Install Rust targets
run: |
rustup target add x86_64-unknown-linux-gnu
rustup target add wasm32-unknown-unknown
rustup target add thumbv6m-none-eabi
rustup target add thumbv7m-none-eabi
rustup target add thumbv7em-none-eabi
rustup target add thumbv7em-none-eabihf
rustup target add thumbv8m.base-none-eabi
rustup target add thumbv8m.main-none-eabi
rustup target add thumbv8m.main-none-eabihf
- name: Install docserver
run: |
wget -q -O /usr/local/bin/builder "https://github.com/embassy-rs/docserver/releases/download/v0.4/builder"
chmod +x /usr/local/bin/builder
- name: build-stm32
if: ${{ matrix.crates=='stm32' }}
run: |
mkdir crates
builder ./embassy-stm32 crates/embassy-stm32/git.zup
- name: build-rest
if: ${{ matrix.crates=='rest' }}
run: |
mkdir crates
builder ./embassy-boot/boot crates/embassy-boot/git.zup
builder ./embassy-boot/nrf crates/embassy-boot-nrf/git.zup
builder ./embassy-boot/rp crates/embassy-boot-rp/git.zup
builder ./embassy-boot/stm32 crates/embassy-boot-stm32/git.zup
builder ./embassy-cortex-m crates/embassy-cortex-m/git.zup
builder ./embassy-embedded-hal crates/embassy-embedded-hal/git.zup
builder ./embassy-executor crates/embassy-executor/git.zup
builder ./embassy-futures crates/embassy-futures/git.zup
builder ./embassy-lora crates/embassy-lora/git.zup
builder ./embassy-net crates/embassy-net/git.zup
builder ./embassy-net-driver crates/embassy-net-driver/git.zup
builder ./embassy-net-driver-channel crates/embassy-net-driver-channel/git.zup
builder ./embassy-nrf crates/embassy-nrf/git.zup
builder ./embassy-rp crates/embassy-rp/git.zup
builder ./embassy-sync crates/embassy-sync/git.zup
builder ./embassy-time crates/embassy-time/git.zup
builder ./embassy-usb crates/embassy-usb/git.zup
builder ./embassy-usb-driver crates/embassy-usb-driver/git.zup
builder ./embassy-usb-logger crates/embassy-usb-logger/git.zup
- name: upload
run: |
mkdir -p ~/.kube
echo "${{secrets.KUBECONFIG}}" > ~/.kube/config
POD=$(kubectl -n embassy get po -l app=docserver -o jsonpath={.items[0].metadata.name})
kubectl cp crates $POD:/data

16
ci.sh
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@ -3,7 +3,7 @@
set -euo pipefail
export RUSTFLAGS=-Dwarnings
export DEFMT_LOG=trace
export DEFMT_LOG=trace,cyw43=info,cyw43_pio=info,smoltcp=info
# needed by wifi examples
export WIFI_NETWORK=x
@ -25,11 +25,19 @@ cargo batch \
--- build --release --manifest-path embassy-executor/Cargo.toml --target thumbv6m-none-eabi --features nightly,defmt \
--- build --release --manifest-path embassy-sync/Cargo.toml --target thumbv6m-none-eabi --features nightly,defmt \
--- build --release --manifest-path embassy-time/Cargo.toml --target thumbv6m-none-eabi --features nightly,unstable-traits,defmt,defmt-timestamp-uptime,tick-hz-32_768,generic-queue-8 \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv4,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,dhcpv4,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,dhcpv4,medium-ethernet,unstable-traits \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,dhcpv4,medium-ethernet,nightly \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,dhcpv4,medium-ethernet,unstable-traits,nightly \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv6,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv6,medium-ethernet,unstable-traits \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv6,medium-ethernet,nightly \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv6,medium-ethernet,unstable-traits,nightly \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv4,proto-ipv6,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv4,proto-ipv6,medium-ethernet,unstable-traits \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv4,proto-ipv6,medium-ethernet,nightly \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv4,proto-ipv6,medium-ethernet,unstable-traits,nightly \
--- build --release --manifest-path embassy-nrf/Cargo.toml --target thumbv7em-none-eabi --features nightly,nrf52805,gpiote,time-driver-rtc1 \
--- build --release --manifest-path embassy-nrf/Cargo.toml --target thumbv7em-none-eabi --features nightly,nrf52810,gpiote,time-driver-rtc1 \
--- build --release --manifest-path embassy-nrf/Cargo.toml --target thumbv7em-none-eabi --features nightly,nrf52811,gpiote,time-driver-rtc1 \
@ -71,6 +79,7 @@ cargo batch \
--- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features nightly,stm32h755zi-cm7,defmt,exti,time-driver-any,unstable-traits \
--- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features nightly,stm32h7b3ai,defmt,exti,time-driver-any,unstable-traits \
--- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features nightly,stm32l476vg,defmt,exti,time-driver-any,unstable-traits \
--- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features nightly,stm32l422cb,defmt,exti,time-driver-any,unstable-traits \
--- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features nightly,stm32wb15cc,defmt,exti,time-driver-any,unstable-traits \
--- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv6m-none-eabi --features nightly,stm32l072cz,defmt,exti,time-driver-any,unstable-traits \
--- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv6m-none-eabi --features nightly,stm32l041f6,defmt,exti,time-driver-any,unstable-traits \
@ -103,6 +112,7 @@ cargo batch \
--- build --release --manifest-path docs/modules/ROOT/examples/layer-by-layer/blinky-irq/Cargo.toml --target thumbv7em-none-eabi \
--- build --release --manifest-path docs/modules/ROOT/examples/layer-by-layer/blinky-async/Cargo.toml --target thumbv7em-none-eabi \
--- build --release --manifest-path examples/nrf52840/Cargo.toml --target thumbv7em-none-eabi --out-dir out/examples/nrf52840 \
--- build --release --manifest-path examples/nrf52840-rtic/Cargo.toml --target thumbv7em-none-eabi --out-dir out/examples/nrf52840-rtic \
--- build --release --manifest-path examples/nrf5340/Cargo.toml --target thumbv8m.main-none-eabihf --out-dir out/examples/nrf5340 \
--- build --release --manifest-path examples/rp/Cargo.toml --target thumbv6m-none-eabi --out-dir out/examples/rp \
--- build --release --manifest-path examples/stm32f0/Cargo.toml --target thumbv6m-none-eabi --out-dir out/examples/stm32f0 \
@ -158,4 +168,4 @@ if [[ -z "${TELEPROBE_TOKEN-}" ]]; then
exit
fi
teleprobe client run -r out/tests
teleprobe client run -r out/tests

4
ci_stable.sh
View file

@ -14,9 +14,11 @@ cargo batch \
--- build --release --manifest-path embassy-executor/Cargo.toml --target thumbv7em-none-eabi --features log \
--- build --release --manifest-path embassy-executor/Cargo.toml --target thumbv7em-none-eabi --features defmt \
--- build --release --manifest-path embassy-executor/Cargo.toml --target thumbv6m-none-eabi --features defmt \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv4,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,dhcpv4,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,dhcpv4,medium-ethernet,unstable-traits \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv6,medium-ethernet \
--- build --release --manifest-path embassy-net/Cargo.toml --target thumbv7em-none-eabi --features defmt,tcp,udp,dns,proto-ipv6,medium-ethernet,unstable-traits \
--- build --release --manifest-path embassy-nrf/Cargo.toml --target thumbv7em-none-eabi --features nrf52805,gpiote,time-driver-rtc1 \
--- build --release --manifest-path embassy-nrf/Cargo.toml --target thumbv7em-none-eabi --features nrf52810,gpiote,time-driver-rtc1 \
--- build --release --manifest-path embassy-nrf/Cargo.toml --target thumbv7em-none-eabi --features nrf52811,gpiote,time-driver-rtc1 \

5
cyw43-pio/Cargo.toml
View file

@ -15,3 +15,8 @@ pio-proc = "0.2"
pio = "0.2.1"
fixed = "1.23.1"
defmt = { version = "0.3", optional = true }
[package.metadata.embassy_docs]
src_base = "https://github.com/embassy-rs/embassy/blob/cyw43-pio-v$VERSION/cyw43-pio/src/"
src_base_git = "https://github.com/embassy-rs/embassy/blob/$COMMIT/cyw43-pio/src/"
target = "thumbv6m-none-eabi"

6
cyw43/Cargo.toml
View file

@ -26,3 +26,9 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
embedded-hal-1 = { package = "embedded-hal", version = "1.0.0-alpha.10" }
num_enum = { version = "0.5.7", default-features = false }
[package.metadata.embassy_docs]
src_base = "https://github.com/embassy-rs/embassy/blob/cyw43-v$VERSION/cyw43/src/"
src_base_git = "https://github.com/embassy-rs/embassy/blob/$COMMIT/cyw43/src/"
target = "thumbv6m-none-eabi"
features = ["defmt", "firmware-logs"]

5
cyw43/src/control.rs
View file

@ -381,10 +381,7 @@ impl<'a> Control<'a> {
}
let ioctl = CancelOnDrop(self.ioctl_state);
ioctl.0.do_ioctl(kind, cmd, iface, buf).await;
let resp_len = ioctl.0.wait_complete().await;
let resp_len = ioctl.0.do_ioctl(kind, cmd, iface, buf).await;
ioctl.defuse();
resp_len

3
cyw43/src/fmt.rs
View file

@ -197,9 +197,6 @@ macro_rules! unwrap {
}
}
#[cfg(feature = "defmt-timestamp-uptime")]
defmt::timestamp! {"{=u64:us}", crate::time::Instant::now().as_micros() }
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub struct NoneError;

24
docs/modules/ROOT/examples/layer-by-layer/blinky-irq/src/main.rs
View file

@ -20,13 +20,13 @@ fn main() -> ! {
let led = Output::new(p.PB14, Level::Low, Speed::Low);
let mut button = Input::new(p.PC13, Pull::Up);
cortex_m::interrupt::free(|cs| unsafe {
cortex_m::interrupt::free(|cs| {
enable_interrupt(&mut button);
LED.borrow(cs).borrow_mut().replace(led);
BUTTON.borrow(cs).borrow_mut().replace(button);
NVIC::unmask(pac::Interrupt::EXTI15_10);
unsafe { NVIC::unmask(pac::Interrupt::EXTI15_10) };
});
loop {
@ -64,25 +64,21 @@ const PORT: u8 = 2;
const PIN: usize = 13;
fn check_interrupt<P: Pin>(_pin: &mut Input<'static, P>) -> bool {
let exti = pac::EXTI;
unsafe {
let pin = PIN;
let lines = exti.pr(0).read();
lines.line(pin)
}
let pin = PIN;
let lines = exti.pr(0).read();
lines.line(pin)
}
fn clear_interrupt<P: Pin>(_pin: &mut Input<'static, P>) {
let exti = pac::EXTI;
unsafe {
let pin = PIN;
let mut lines = exti.pr(0).read();
lines.set_line(pin, true);
exti.pr(0).write_value(lines);
}
let pin = PIN;
let mut lines = exti.pr(0).read();
lines.set_line(pin, true);
exti.pr(0).write_value(lines);
}
fn enable_interrupt<P: Pin>(_pin: &mut Input<'static, P>) {
cortex_m::interrupt::free(|_| unsafe {
cortex_m::interrupt::free(|_| {
let rcc = pac::RCC;
rcc.apb2enr().modify(|w| w.set_syscfgen(true));

47
embassy-cortex-m/Cargo.toml
View file

@ -1,47 +0,0 @@
[package]
name = "embassy-cortex-m"
version = "0.1.0"
edition = "2021"
license = "MIT OR Apache-2.0"
[package.metadata.embassy_docs]
src_base = "https://github.com/embassy-rs/embassy/blob/embassy-cortex-m-v$VERSION/embassy-cortex-m/src/"
src_base_git = "https://github.com/embassy-rs/embassy/blob/$COMMIT/embassy-cortex-m/src/"
features = ["prio-bits-3"]
flavors = [
{ name = "thumbv6m-none-eabi", target = "thumbv6m-none-eabi", features = [] },
{ name = "thumbv7m-none-eabi", target = "thumbv7m-none-eabi", features = [] },
{ name = "thumbv7em-none-eabi", target = "thumbv7em-none-eabi", features = [] },
{ name = "thumbv7em-none-eabihf", target = "thumbv7em-none-eabihf", features = [] },
{ name = "thumbv8m.base-none-eabi", target = "thumbv8m.base-none-eabi", features = [] },
{ name = "thumbv8m.main-none-eabi", target = "thumbv8m.main-none-eabi", features = [] },
{ name = "thumbv8m.main-none-eabihf", target = "thumbv8m.main-none-eabihf", features = [] },
]
[features]
default = []
# Define the number of NVIC priority bits.
prio-bits-0 = []
prio-bits-1 = []
prio-bits-2 = []
prio-bits-3 = []
prio-bits-4 = []
prio-bits-5 = []
prio-bits-6 = []
prio-bits-7 = []
prio-bits-8 = []
[dependencies]
defmt = { version = "0.3", optional = true }
log = { version = "0.4.14", optional = true }
embassy-sync = { version = "0.2.0", path = "../embassy-sync" }
embassy-executor = { version = "0.2.0", path = "../embassy-executor"}
embassy-macros = { version = "0.2.0", path = "../embassy-macros"}
embassy-hal-common = { version = "0.1.0", path = "../embassy-hal-common"}
atomic-polyfill = "1.0.1"
critical-section = "1.1"
cfg-if = "1.0.0"
cortex-m = "0.7.6"

10
embassy-cortex-m/src/lib.rs
View file

@ -1,10 +0,0 @@
//! Embassy executor and interrupt handling specific to cortex-m devices.
#![no_std]
#![warn(missing_docs)]
// This mod MUST go first, so that the others see its macros.
pub(crate) mod fmt;
pub use embassy_executor as executor;
pub mod interrupt;
pub mod peripheral;

144
embassy-cortex-m/src/peripheral.rs
View file

@ -1,144 +0,0 @@
//! Peripheral interrupt handling specific to cortex-m devices.
use core::mem::MaybeUninit;
use cortex_m::peripheral::scb::VectActive;
use cortex_m::peripheral::{NVIC, SCB};
use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
use crate::interrupt::{Interrupt, InterruptExt, Priority};
/// A type which can be used as state with `PeripheralMutex`.
///
/// It needs to be `Send` because `&mut` references are sent back and forth between the 'thread' which owns the `PeripheralMutex` and the interrupt,
/// and `&mut T` is only `Send` where `T: Send`.
pub trait PeripheralState: Send {
/// The interrupt that is used for this peripheral.
type Interrupt: Interrupt;
/// The interrupt handler that should be invoked for the peripheral. Implementations need to clear the appropriate interrupt flags to ensure the handle will not be called again.
fn on_interrupt(&mut self);
}
/// A type for storing the state of a peripheral that can be stored in a static.
pub struct StateStorage<S>(MaybeUninit<S>);
impl<S> StateStorage<S> {
/// Create a new instance for storing peripheral state.
pub const fn new() -> Self {
Self(MaybeUninit::uninit())
}
}
/// A type for a peripheral that keeps the state of a peripheral that can be accessed from thread mode and an interrupt handler in
/// a safe way.
pub struct PeripheralMutex<'a, S: PeripheralState> {
state: *mut S,
irq: PeripheralRef<'a, S::Interrupt>,
}
/// Whether `irq` can be preempted by the current interrupt.
pub(crate) fn can_be_preempted(irq: &impl Interrupt) -> bool {
match SCB::vect_active() {
// Thread mode can't preempt anything.
VectActive::ThreadMode => false,
// Exceptions don't always preempt interrupts,
// but there isn't much of a good reason to be keeping a `PeripheralMutex` in an exception anyway.
VectActive::Exception(_) => true,
VectActive::Interrupt { irqn } => {
#[derive(Clone, Copy)]
struct NrWrap(u16);
unsafe impl cortex_m::interrupt::InterruptNumber for NrWrap {
fn number(self) -> u16 {
self.0
}
}
NVIC::get_priority(NrWrap(irqn.into())) < irq.get_priority().into()
}
}
}
impl<'a, S: PeripheralState> PeripheralMutex<'a, S> {
/// Create a new `PeripheralMutex` wrapping `irq`, with `init` initializing the initial state.
///
/// Registers `on_interrupt` as the `irq`'s handler, and enables it.
pub fn new(
irq: impl Peripheral<P = S::Interrupt> + 'a,
storage: &'a mut StateStorage<S>,
init: impl FnOnce() -> S,
) -> Self {
into_ref!(irq);
if can_be_preempted(&*irq) {
panic!(
"`PeripheralMutex` cannot be created in an interrupt with higher priority than the interrupt it wraps"
);
}
let state_ptr = storage.0.as_mut_ptr();
// Safety: The pointer is valid and not used by anyone else
// because we have the `&mut StateStorage`.
unsafe { state_ptr.write(init()) };
irq.disable();
irq.set_handler(|p| unsafe {
// Safety: it's OK to get a &mut to the state, since
// - We checked that the thread owning the `PeripheralMutex` can't preempt us in `new`.
// Interrupts' priorities can only be changed with raw embassy `Interrupts`,
// which can't safely store a `PeripheralMutex` across invocations.
// - We can't have preempted a with() call because the irq is disabled during it.
let state = &mut *(p as *mut S);
state.on_interrupt();
});
irq.set_handler_context(state_ptr as *mut ());
irq.enable();
Self { irq, state: state_ptr }
}
/// Access the peripheral state ensuring interrupts are disabled so that the state can be
/// safely accessed.
pub fn with<R>(&mut self, f: impl FnOnce(&mut S) -> R) -> R {
self.irq.disable();
// Safety: it's OK to get a &mut to the state, since the irq is disabled.
let state = unsafe { &mut *self.state };
let r = f(state);
self.irq.enable();
r
}
/// Returns whether the wrapped interrupt is currently in a pending state.
pub fn is_pending(&self) -> bool {
self.irq.is_pending()
}
/// Forces the wrapped interrupt into a pending state.
pub fn pend(&self) {
self.irq.pend()
}
/// Forces the wrapped interrupt out of a pending state.
pub fn unpend(&self) {
self.irq.unpend()
}
/// Gets the priority of the wrapped interrupt.
pub fn priority(&self) -> Priority {
self.irq.get_priority()
}
}
impl<'a, S: PeripheralState> Drop for PeripheralMutex<'a, S> {
fn drop(&mut self) {
self.irq.disable();
self.irq.remove_handler();
// safety:
// - we initialized the state in `new`, so we know it's initialized.
// - the irq is disabled, so it won't preempt us while dropping.
unsafe { self.state.drop_in_place() }
}
}

2
embassy-executor/Cargo.toml
View file

@ -65,7 +65,7 @@ embassy-macros = { version = "0.2.0", path = "../embassy-macros" }
embassy-time = { version = "0.1.0", path = "../embassy-time", optional = true}
atomic-polyfill = "1.0.1"
critical-section = "1.1"
static_cell = "1.0"
static_cell = "1.1"
# arch-cortex-m dependencies
cortex-m = { version = "0.7.6", optional = true }

15
embassy-executor/src/arch/cortex_m.rs
View file

@ -205,5 +205,20 @@ mod interrupt {
executor.spawner().make_send()
}
/// Get a SendSpawner for this executor
///
/// This returns a [`SendSpawner`] you can use to spawn tasks on this
/// executor.
///
/// This MUST only be called on an executor that has already been spawned.
/// The function will panic otherwise.
pub fn spawner(&'static self) -> crate::SendSpawner {
if !self.started.load(Ordering::Acquire) {
panic!("InterruptExecutor::spawner() called on uninitialized executor.");
}
let executor = unsafe { (&*self.executor.get()).assume_init_ref() };
executor.spawner().make_send()
}
}
}

12
embassy-futures/src/block_on.rs
View file

@ -31,3 +31,15 @@ pub fn block_on<F: Future>(mut fut: F) -> F::Output {
}
}
}
/// Poll a future once.
pub fn poll_once<F: Future>(mut fut: F) -> Poll<F::Output> {
// safety: we don't move the future after this line.
let mut fut = unsafe { Pin::new_unchecked(&mut fut) };
let raw_waker = RawWaker::new(ptr::null(), &VTABLE);
let waker = unsafe { Waker::from_raw(raw_waker) };
let mut cx = Context::from_waker(&waker);
fut.as_mut().poll(&mut cx)
}

3
embassy-futures/src/fmt.rs
View file

@ -195,9 +195,6 @@ macro_rules! unwrap {
}
}
#[cfg(feature = "defmt-timestamp-uptime")]
defmt::timestamp! {"{=u64:us}", crate::time::Instant::now().as_micros() }
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub struct NoneError;

16
embassy-hal-common/Cargo.toml
View file

@ -6,8 +6,24 @@ license = "MIT OR Apache-2.0"
[features]
# Define the number of NVIC priority bits.
prio-bits-0 = []
prio-bits-1 = []
prio-bits-2 = []
prio-bits-3 = []
prio-bits-4 = []
prio-bits-5 = []
prio-bits-6 = []
prio-bits-7 = []
prio-bits-8 = []
cortex-m = ["dep:cortex-m", "dep:critical-section"]
[dependencies]
defmt = { version = "0.3", optional = true }
log = { version = "0.4.14", optional = true }
num-traits = { version = "0.2.14", default-features = false }
cortex-m = { version = "0.7.6", optional = true }
critical-section = { version = "1", optional = true }

0
embassy-cortex-m/build.rs → embassy-hal-common/build.rs
View file

348
embassy-cortex-m/src/interrupt.rs → embassy-hal-common/src/interrupt.rs
View file

@ -1,215 +1,209 @@
//! Interrupt handling for cortex-m devices.
use core::{mem, ptr};
use core::mem;
use core::sync::atomic::{compiler_fence, Ordering};
use atomic_polyfill::{compiler_fence, AtomicPtr, Ordering};
use cortex_m::interrupt::InterruptNumber;
use cortex_m::peripheral::NVIC;
use embassy_hal_common::Peripheral;
pub use embassy_macros::cortex_m_interrupt_take as take;
/// Do not use. Used for macros and HALs only. Not covered by semver guarantees.
#[doc(hidden)]
pub mod _export {
pub use atomic_polyfill as atomic;
pub use embassy_macros::{cortex_m_interrupt as interrupt, cortex_m_interrupt_declare as declare};
}
/// Generate a standard `mod interrupt` for a HAL.
#[macro_export]
macro_rules! interrupt_mod {
($($irqs:ident),* $(,)?) => {
#[cfg(feature = "rt")]
pub use cortex_m_rt::interrupt;
/// Interrupt handler trait.
///
/// Drivers that need to handle interrupts implement this trait.
/// The user must ensure `on_interrupt()` is called every time the interrupt fires.
/// Drivers must use use [`Binding`] to assert at compile time that the user has done so.
pub trait Handler<I: Interrupt> {
/// Interrupt handler function.
///
/// Must be called every time the `I` interrupt fires, synchronously from
/// the interrupt handler context.
///
/// # Safety
///
/// This function must ONLY be called from the interrupt handler for `I`.
unsafe fn on_interrupt();
}
/// Interrupt definitions.
pub mod interrupt {
pub use $crate::interrupt::{InterruptExt, Priority};
pub use crate::pac::Interrupt::*;
pub use crate::pac::Interrupt;
/// Compile-time assertion that an interrupt has been bound to a handler.
///
/// For the vast majority of cases, you should use the `bind_interrupts!`
/// macro instead of writing `unsafe impl`s of this trait.
///
/// # Safety
///
/// By implementing this trait, you are asserting that you have arranged for `H::on_interrupt()`
/// to be called every time the `I` interrupt fires.
///
/// This allows drivers to check bindings at compile-time.
pub unsafe trait Binding<I: Interrupt, H: Handler<I>> {}
/// Type-level interrupt infrastructure.
///
/// This module contains one *type* per interrupt. This is used for checking at compile time that
/// the interrupts are correctly bound to HAL drivers.
///
/// As an end user, you shouldn't need to use this module directly. Use the [`crate::bind_interrupts!`] macro
/// to bind interrupts, and the [`crate::interrupt`] module to manually register interrupt handlers and manipulate
/// interrupts directly (pending/unpending, enabling/disabling, setting the priority, etc...)
pub mod typelevel {
use super::InterruptExt;
/// Implementation detail, do not use outside embassy crates.
#[doc(hidden)]
pub struct DynHandler {
pub func: AtomicPtr<()>,
pub ctx: AtomicPtr<()>,
}
mod sealed {
pub trait Interrupt {}
}
impl DynHandler {
pub const fn new() -> Self {
Self {
func: AtomicPtr::new(ptr::null_mut()),
ctx: AtomicPtr::new(ptr::null_mut()),
/// Type-level interrupt.
///
/// This trait is implemented for all typelevel interrupt types in this module.
pub trait Interrupt: sealed::Interrupt {
/// Interrupt enum variant.
///
/// This allows going from typelevel interrupts (one type per interrupt) to
/// non-typelevel interrupts (a single `Interrupt` enum type, with one variant per interrupt).
const IRQ: super::Interrupt;
/// Enable the interrupt.
#[inline]
unsafe fn enable() {
Self::IRQ.enable()
}
/// Disable the interrupt.
#[inline]
fn disable() {
Self::IRQ.disable()
}
/// Check if interrupt is enabled.
#[inline]
fn is_enabled() -> bool {
Self::IRQ.is_enabled()
}
/// Check if interrupt is pending.
#[inline]
fn is_pending() -> bool {
Self::IRQ.is_pending()
}
/// Set interrupt pending.
#[inline]
fn pend() {
Self::IRQ.pend()
}
/// Unset interrupt pending.
#[inline]
fn unpend() {
Self::IRQ.unpend()
}
/// Get the priority of the interrupt.
#[inline]
fn get_priority() -> crate::interrupt::Priority {
Self::IRQ.get_priority()
}
/// Set the interrupt priority.
#[inline]
fn set_priority(prio: crate::interrupt::Priority) {
Self::IRQ.set_priority(prio)
}
}
$(
#[allow(non_camel_case_types)]
#[doc=stringify!($irqs)]
#[doc=" typelevel interrupt."]
pub enum $irqs {}
impl sealed::Interrupt for $irqs{}
impl Interrupt for $irqs {
const IRQ: super::Interrupt = super::Interrupt::$irqs;
}
)*
/// Interrupt handler trait.
///
/// Drivers that need to handle interrupts implement this trait.
/// The user must ensure `on_interrupt()` is called every time the interrupt fires.
/// Drivers must use use [`Binding`] to assert at compile time that the user has done so.
pub trait Handler<I: Interrupt> {
/// Interrupt handler function.
///
/// Must be called every time the `I` interrupt fires, synchronously from
/// the interrupt handler context.
///
/// # Safety
///
/// This function must ONLY be called from the interrupt handler for `I`.
unsafe fn on_interrupt();
}
/// Compile-time assertion that an interrupt has been bound to a handler.
///
/// For the vast majority of cases, you should use the `bind_interrupts!`
/// macro instead of writing `unsafe impl`s of this trait.
///
/// # Safety
///
/// By implementing this trait, you are asserting that you have arranged for `H::on_interrupt()`
/// to be called every time the `I` interrupt fires.
///
/// This allows drivers to check bindings at compile-time.
pub unsafe trait Binding<I: Interrupt, H: Handler<I>> {}
}
}
}
}
#[derive(Clone, Copy)]
pub(crate) struct NrWrap(pub(crate) u16);
unsafe impl cortex_m::interrupt::InterruptNumber for NrWrap {
fn number(self) -> u16 {
self.0
}
};
}
/// Represents an interrupt type that can be configured by embassy to handle
/// interrupts.
pub unsafe trait Interrupt: Peripheral<P = Self> {
/// Return the NVIC interrupt number for this interrupt.
fn number(&self) -> u16;
/// Steal an instance of this interrupt
///
/// # Safety
///
/// This may panic if the interrupt has already been stolen and configured.
unsafe fn steal() -> Self;
/// Implementation detail, do not use outside embassy crates.
#[doc(hidden)]
unsafe fn __handler(&self) -> &'static DynHandler;
}
/// Represents additional behavior for all interrupts.
pub trait InterruptExt: Interrupt {
/// Configure the interrupt handler for this interrupt.
///
/// # Safety
///
/// It is the responsibility of the caller to ensure the handler
/// points to a valid handler as long as interrupts are enabled.
fn set_handler(&self, func: unsafe fn(*mut ()));
/// Remove the interrupt handler for this interrupt.
fn remove_handler(&self);
/// Set point to a context that is passed to the interrupt handler when
/// an interrupt is pending.
///
/// # Safety
///
/// It is the responsibility of the caller to ensure the context
/// points to a valid handler as long as interrupts are enabled.
fn set_handler_context(&self, ctx: *mut ());
/// Enable the interrupt. Once enabled, the interrupt handler may
/// be called "any time".
fn enable(&self);
pub unsafe trait InterruptExt: InterruptNumber + Copy {
/// Enable the interrupt.
#[inline]
unsafe fn enable(self) {
compiler_fence(Ordering::SeqCst);
NVIC::unmask(self)
}
/// Disable the interrupt.
fn disable(&self);
#[inline]
fn disable(self) {
NVIC::mask(self);
compiler_fence(Ordering::SeqCst);
}
/// Check if interrupt is being handled.
#[inline]
#[cfg(not(armv6m))]
fn is_active(&self) -> bool;
fn is_active(self) -> bool {
NVIC::is_active(self)
}
/// Check if interrupt is enabled.
fn is_enabled(&self) -> bool;
#[inline]
fn is_enabled(self) -> bool {
NVIC::is_enabled(self)
}
/// Check if interrupt is pending.
fn is_pending(&self) -> bool;
#[inline]
fn is_pending(self) -> bool {
NVIC::is_pending(self)
}
/// Set interrupt pending.
fn pend(&self);
#[inline]
fn pend(self) {
NVIC::pend(self)
}
/// Unset interrupt pending.
fn unpend(&self);
#[inline]
fn unpend(self) {
NVIC::unpend(self)
}
/// Get the priority of the interrupt.
fn get_priority(&self) -> Priority;
#[inline]
fn get_priority(self) -> Priority {
Priority::from(NVIC::get_priority(self))
}
/// Set the interrupt priority.
fn set_priority(&self, prio: Priority);
}
impl<T: Interrupt + ?Sized> InterruptExt for T {
fn set_handler(&self, func: unsafe fn(*mut ())) {
compiler_fence(Ordering::SeqCst);
let handler = unsafe { self.__handler() };
handler.func.store(func as *mut (), Ordering::Relaxed);
compiler_fence(Ordering::SeqCst);
}
fn remove_handler(&self) {
compiler_fence(Ordering::SeqCst);
let handler = unsafe { self.__handler() };
handler.func.store(ptr::null_mut(), Ordering::Relaxed);
compiler_fence(Ordering::SeqCst);
}
fn set_handler_context(&self, ctx: *mut ()) {
let handler = unsafe { self.__handler() };
handler.ctx.store(ctx, Ordering::Relaxed);
}
#[inline]
fn enable(&self) {
compiler_fence(Ordering::SeqCst);
unsafe {
NVIC::unmask(NrWrap(self.number()));
}
}
#[inline]
fn disable(&self) {
NVIC::mask(NrWrap(self.number()));
compiler_fence(Ordering::SeqCst);
}
#[inline]
#[cfg(not(armv6m))]
fn is_active(&self) -> bool {
NVIC::is_active(NrWrap(self.number()))
}
#[inline]
fn is_enabled(&self) -> bool {
NVIC::is_enabled(NrWrap(self.number()))
}
#[inline]
fn is_pending(&self) -> bool {
NVIC::is_pending(NrWrap(self.number()))
}
#[inline]
fn pend(&self) {
NVIC::pend(NrWrap(self.number()))
}
#[inline]
fn unpend(&self) {
NVIC::unpend(NrWrap(self.number()))
}
#[inline]
fn get_priority(&self) -> Priority {
Priority::from(NVIC::get_priority(NrWrap(self.number())))
}
#[inline]
fn set_priority(&self, prio: Priority) {
unsafe {
fn set_priority(self, prio: Priority) {
critical_section::with(|_| unsafe {
let mut nvic: cortex_m::peripheral::NVIC = mem::transmute(());
nvic.set_priority(NrWrap(self.number()), prio.into())
}
nvic.set_priority(self, prio.into())
})
}
}
unsafe impl<T: InterruptNumber + Copy> InterruptExt for T {}
impl From<u8> for Priority {
fn from(priority: u8) -> Self {
unsafe { mem::transmute(priority & PRIO_MASK) }

3
embassy-hal-common/src/lib.rs
View file

@ -11,3 +11,6 @@ mod peripheral;
pub mod ratio;
pub mod ring_buffer;
pub use peripheral::{Peripheral, PeripheralRef};
#[cfg(feature = "cortex-m")]
pub mod interrupt;

28
embassy-lora/src/iv.rs
View file

@ -1,7 +1,7 @@
#[cfg(feature = "stm32wl")]
use embassy_stm32::interrupt;
#[cfg(feature = "stm32wl")]
use embassy_stm32::interrupt::*;
use embassy_stm32::interrupt::InterruptExt;
#[cfg(feature = "stm32wl")]
use embassy_stm32::pac;
#[cfg(feature = "stm32wl")]
@ -20,9 +20,9 @@ use lora_phy::mod_traits::InterfaceVariant;
pub struct InterruptHandler {}
#[cfg(feature = "stm32wl")]
impl interrupt::Handler<interrupt::SUBGHZ_RADIO> for InterruptHandler {
impl interrupt::typelevel::Handler<interrupt::typelevel::SUBGHZ_RADIO> for InterruptHandler {
unsafe fn on_interrupt() {
unsafe { SUBGHZ_RADIO::steal() }.disable();
interrupt::SUBGHZ_RADIO.disable();
IRQ_SIGNAL.signal(());
}
}
@ -45,11 +45,11 @@ where
{
/// Create an InterfaceVariant instance for an stm32wl/sx1262 combination
pub fn new(
_irq: impl interrupt::Binding<interrupt::SUBGHZ_RADIO, InterruptHandler>,
_irq: impl interrupt::typelevel::Binding<interrupt::typelevel::SUBGHZ_RADIO, InterruptHandler>,
rf_switch_rx: Option<CTRL>,
rf_switch_tx: Option<CTRL>,
) -> Result<Self, RadioError> {
unsafe { interrupt::SUBGHZ_RADIO::steal() }.disable();
interrupt::SUBGHZ_RADIO.disable();
Ok(Self {
board_type: BoardType::Stm32wlSx1262, // updated when associated with a specific LoRa board
rf_switch_rx,
@ -68,34 +68,28 @@ where
}
async fn set_nss_low(&mut self) -> Result<(), RadioError> {
let pwr = pac::PWR;
unsafe {
pwr.subghzspicr().modify(|w| w.set_nss(pac::pwr::vals::Nss::LOW));
}
pwr.subghzspicr().modify(|w| w.set_nss(pac::pwr::vals::Nss::LOW));
Ok(())
}
async fn set_nss_high(&mut self) -> Result<(), RadioError> {
let pwr = pac::PWR;
unsafe {
pwr.subghzspicr().modify(|w| w.set_nss(pac::pwr::vals::Nss::HIGH));
}
pwr.subghzspicr().modify(|w| w.set_nss(pac::pwr::vals::Nss::HIGH));
Ok(())
}
async fn reset(&mut self, _delay: &mut impl DelayUs) -> Result<(), RadioError> {
let rcc = pac::RCC;
unsafe {
rcc.csr().modify(|w| w.set_rfrst(true));
rcc.csr().modify(|w| w.set_rfrst(false));
}
rcc.csr().modify(|w| w.set_rfrst(true));
rcc.csr().modify(|w| w.set_rfrst(false));
Ok(())
}
async fn wait_on_busy(&mut self) -> Result<(), RadioError> {
let pwr = pac::PWR;
while unsafe { pwr.sr2().read().rfbusys() == pac::pwr::vals::Rfbusys::BUSY } {}
while pwr.sr2().read().rfbusys() == pac::pwr::vals::Rfbusys::BUSY {}
Ok(())
}
async fn await_irq(&mut self) -> Result<(), RadioError> {
unsafe { interrupt::SUBGHZ_RADIO::steal() }.enable();
unsafe { interrupt::SUBGHZ_RADIO.enable() };
IRQ_SIGNAL.wait().await;
Ok(())
}

24
embassy-macros/src/lib.rs
View file

@ -156,27 +156,3 @@ pub fn main_wasm(args: TokenStream, item: TokenStream) -> TokenStream {
let f = syn::parse_macro_input!(item as syn::ItemFn);
main::run(args, f, main::wasm()).unwrap_or_else(|x| x).into()
}
#[proc_macro_attribute]
pub fn cortex_m_interrupt(args: TokenStream, item: TokenStream) -> TokenStream {
let args = syn::parse_macro_input!(args as syn::AttributeArgs);
let f = syn::parse_macro_input!(item as syn::ItemFn);
cortex_m_interrupt::run(args, f).unwrap_or_else(|x| x).into()
}
#[proc_macro]
pub fn cortex_m_interrupt_declare(item: TokenStream) -> TokenStream {
let name = syn::parse_macro_input!(item as syn::Ident);
cortex_m_interrupt_declare::run(name).unwrap_or_else(|x| x).into()
}
/// # interrupt_take procedural macro
///
/// core::panic! is used as a default way to panic in this macro as there is no sensible way of enabling/disabling defmt for macro generation.
/// We are aware that this brings bloat in the form of core::fmt, but the bloat is already included with e.g. array indexing panics.
/// To get rid of this bloat, use the compiler flags `-Zbuild-std=core -Zbuild-std-features=panic_immediate_abort`.
#[proc_macro]
pub fn cortex_m_interrupt_take(item: TokenStream) -> TokenStream {
let name = syn::parse_macro_input!(item as syn::Ident);
cortex_m_interrupt_take::run(name).unwrap_or_else(|x| x).into()
}

66
embassy-macros/src/macros/cortex_m_interrupt.rs
View file

@ -1,66 +0,0 @@
use std::iter;
use darling::FromMeta;
use proc_macro2::TokenStream;
use quote::quote;
use syn::{ReturnType, Type, Visibility};
use crate::util::ctxt::Ctxt;
#[derive(Debug, FromMeta)]
struct Args {}
pub fn run(args: syn::AttributeArgs, mut f: syn::ItemFn) -> Result<TokenStream, TokenStream> {
let _args = Args::from_list(&args).map_err(|e| e.write_errors())?;
let ident = f.sig.ident.clone();
let ident_s = ident.to_string();
// XXX should we blacklist other attributes?
let valid_signature = f.sig.constness.is_none()
&& f.vis == Visibility::Inherited
&& f.sig.abi.is_none()
&& f.sig.inputs.is_empty()
&& f.sig.generics.params.is_empty()
&& f.sig.generics.where_clause.is_none()
&& f.sig.variadic.is_none()
&& match f.sig.output {
ReturnType::Default => true,
ReturnType::Type(_, ref ty) => match **ty {
Type::Tuple(ref tuple) => tuple.elems.is_empty(),
Type::Never(..) => true,
_ => false,
},
};
let ctxt = Ctxt::new();
if !valid_signature {
ctxt.error_spanned_by(
&f.sig,
"`#[interrupt]` handlers must have signature `[unsafe] fn() [-> !]`",
);
}
ctxt.check()?;
f.block.stmts = iter::once(
syn::parse2(quote! {{
// Check that this interrupt actually exists
let __irq_exists_check: interrupt::#ident;
}})
.unwrap(),
)
.chain(f.block.stmts)
.collect();
let result = quote!(
#[doc(hidden)]
#[export_name = #ident_s]
#[allow(non_snake_case)]
#f
);
Ok(result)
}

34
embassy-macros/src/macros/cortex_m_interrupt_declare.rs
View file

@ -1,34 +0,0 @@
use proc_macro2::TokenStream;
use quote::{format_ident, quote};
pub fn run(name: syn::Ident) -> Result<TokenStream, TokenStream> {
let name = format_ident!("{}", name);
let name_interrupt = format_ident!("{}", name);
let name_handler = format!("__EMBASSY_{}_HANDLER", name);
let doc = format!("{} interrupt singleton.", name);
let result = quote! {
#[doc = #doc]
#[allow(non_camel_case_types)]
pub struct #name_interrupt(());
unsafe impl ::embassy_cortex_m::interrupt::Interrupt for #name_interrupt {
fn number(&self) -> u16 {
use cortex_m::interrupt::InterruptNumber;
let irq = InterruptEnum::#name;
irq.number() as u16
}
unsafe fn steal() -> Self {
Self(())
}
unsafe fn __handler(&self) -> &'static ::embassy_cortex_m::interrupt::DynHandler {
#[export_name = #name_handler]
static HANDLER: ::embassy_cortex_m::interrupt::DynHandler = ::embassy_cortex_m::interrupt::DynHandler::new();
&HANDLER
}
}
::embassy_hal_common::impl_peripheral!(#name_interrupt);
};
Ok(result)
}

57
embassy-macros/src/macros/cortex_m_interrupt_take.rs
View file

@ -1,57 +0,0 @@
use proc_macro2::TokenStream;
use quote::{format_ident, quote};
pub fn run(name: syn::Ident) -> Result<TokenStream, TokenStream> {
let name = format!("{}", name);
let name_interrupt = format_ident!("{}", name);
let name_handler = format!("__EMBASSY_{}_HANDLER", name);
#[cfg(feature = "rtos-trace-interrupt")]
let (isr_enter, isr_exit) = (
quote! {
::embassy_executor::rtos_trace_interrupt! {
::embassy_executor::_export::trace::isr_enter();
}
},
quote! {
::embassy_executor::rtos_trace_interrupt! {
::embassy_executor::_export::trace::isr_exit();
}
},
);
#[cfg(not(feature = "rtos-trace-interrupt"))]
let (isr_enter, isr_exit) = (quote! {}, quote! {});
let result = quote! {
{
#[allow(non_snake_case)]
#[export_name = #name]
pub unsafe extern "C" fn trampoline() {
extern "C" {
#[link_name = #name_handler]
static HANDLER: interrupt::DynHandler;
}
let func = HANDLER.func.load(interrupt::_export::atomic::Ordering::Relaxed);
let ctx = HANDLER.ctx.load(interrupt::_export::atomic::Ordering::Relaxed);
let func: fn(*mut ()) = ::core::mem::transmute(func);
#isr_enter
func(ctx);
#isr_exit
}
static TAKEN: interrupt::_export::atomic::AtomicBool = interrupt::_export::atomic::AtomicBool::new(false);
if TAKEN.compare_exchange(false, true, interrupt::_export::atomic::Ordering::AcqRel, interrupt::_export::atomic::Ordering::Acquire).is_err() {
core::panic!("IRQ Already taken");
}
let irq: interrupt::#name_interrupt = unsafe { ::core::mem::transmute(()) };
irq
}
};
Ok(result)
}

3
embassy-macros/src/macros/mod.rs
View file

@ -1,5 +1,2 @@
pub mod cortex_m_interrupt;
pub mod cortex_m_interrupt_declare;
pub mod cortex_m_interrupt_take;
pub mod main;
pub mod task;

5
embassy-net-w5500/Cargo.toml
View file

@ -14,3 +14,8 @@ embassy-net-driver-channel = { version = "0.1.0", path = "../embassy-net-driver-
embassy-time = { version = "0.1.0" }
embassy-futures = { version = "0.1.0" }
defmt = { version = "0.3", optional = true }
[package.metadata.embassy_docs]
src_base = "https://github.com/embassy-rs/embassy/blob/embassy-net-w5500-v$VERSION/embassy-net-w5500/src/"
src_base_git = "https://github.com/embassy-rs/embassy/blob/$COMMIT/embassy-net-w5500/src/"
target = "thumbv7em-none-eabi"

4
embassy-net/Cargo.toml
View file

@ -26,7 +26,8 @@ unstable-traits = []
udp = ["smoltcp/socket-udp"]
tcp = ["smoltcp/socket-tcp"]
dns = ["smoltcp/socket-dns", "smoltcp/proto-dns"]
dhcpv4 = ["medium-ethernet", "smoltcp/socket-dhcpv4"]
dhcpv4 = ["proto-ipv4", "medium-ethernet", "smoltcp/socket-dhcpv4"]
proto-ipv4 = ["smoltcp/proto-ipv4"]
proto-ipv6 = ["smoltcp/proto-ipv6"]
medium-ethernet = ["smoltcp/medium-ethernet"]
medium-ip = ["smoltcp/medium-ip"]
@ -38,7 +39,6 @@ defmt = { version = "0.3", optional = true }
log = { version = "0.4.14", optional = true }
smoltcp = { version = "0.9.0", default-features = false, features = [
"proto-ipv4",
"socket",
"async",
]}

5
embassy-net/src/device.rs
View file

@ -59,7 +59,10 @@ where
smolcaps.checksum.ipv4 = convert(caps.checksum.ipv4);
smolcaps.checksum.tcp = convert(caps.checksum.tcp);
smolcaps.checksum.udp = convert(caps.checksum.udp);
smolcaps.checksum.icmpv4 = convert(caps.checksum.icmpv4);
#[cfg(feature = "proto-ipv4")]
{
smolcaps.checksum.icmpv4 = convert(caps.checksum.icmpv4);
}
#[cfg(feature = "proto-ipv6")]
{
smolcaps.checksum.icmpv6 = convert(caps.checksum.icmpv6);

1
embassy-net/src/dns.rs
View file

@ -88,6 +88,7 @@ where
let addrs = self.query(host, qtype).await?;
if let Some(first) = addrs.get(0) {
Ok(match first {
#[cfg(feature = "proto-ipv4")]
IpAddress::Ipv4(addr) => IpAddr::V4(addr.0.into()),
#[cfg(feature = "proto-ipv6")]
IpAddress::Ipv6(addr) => IpAddr::V6(addr.0.into()),

245
embassy-net/src/lib.rs
View file

@ -34,7 +34,9 @@ use smoltcp::socket::dhcpv4::{self, RetryConfig};
pub use smoltcp::wire::IpListenEndpoint;
#[cfg(feature = "medium-ethernet")]
pub use smoltcp::wire::{EthernetAddress, HardwareAddress};
pub use smoltcp::wire::{IpAddress, IpCidr, Ipv4Address, Ipv4Cidr};
pub use smoltcp::wire::{IpAddress, IpCidr};
#[cfg(feature = "proto-ipv4")]
pub use smoltcp::wire::{Ipv4Address, Ipv4Cidr};
#[cfg(feature = "proto-ipv6")]
pub use smoltcp::wire::{Ipv6Address, Ipv6Cidr};
@ -67,8 +69,9 @@ impl<const SOCK: usize> StackResources<SOCK> {
}
/// Static IP address configuration.
#[cfg(feature = "proto-ipv4")]
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct StaticConfig {
pub struct StaticConfigV4 {
/// IP address and subnet mask.
pub address: Ipv4Cidr,
/// Default gateway.
@ -77,6 +80,18 @@ pub struct StaticConfig {
pub dns_servers: Vec<Ipv4Address, 3>,
}
/// Static IPv6 address configuration
#[cfg(feature = "proto-ipv6")]
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct StaticConfigV6 {
/// IP address and subnet mask.
pub address: Ipv6Cidr,
/// Default gateway.
pub gateway: Option<Ipv6Address>,
/// DNS servers.
pub dns_servers: Vec<Ipv6Address, 3>,
}
/// DHCP configuration.
#[cfg(feature = "dhcpv4")]
#[derive(Debug, Clone, PartialEq, Eq)]
@ -112,12 +127,71 @@ impl Default for DhcpConfig {
}
/// Network stack configuration.
pub enum Config {
/// Use a static IP address configuration.
Static(StaticConfig),
pub struct Config {
/// IPv4 configuration
#[cfg(feature = "proto-ipv4")]
pub ipv4: ConfigV4,
/// IPv6 configuration
#[cfg(feature = "proto-ipv6")]
pub ipv6: ConfigV6,
}
impl Config {
/// IPv4 configuration with static addressing.
#[cfg(feature = "proto-ipv4")]
pub fn ipv4_static(config: StaticConfigV4) -> Self {
Self {
ipv4: ConfigV4::Static(config),
#[cfg(feature = "proto-ipv6")]
ipv6: ConfigV6::None,
}
}
/// IPv6 configuration with static addressing.
#[cfg(feature = "proto-ipv6")]
pub fn ipv6_static(config: StaticConfigV6) -> Self {
Self {
#[cfg(feature = "proto-ipv4")]
ipv4: ConfigV4::None,
ipv6: ConfigV6::Static(config),
}
}
/// IPv6 configuration with dynamic addressing.
///
/// # Example
/// ```rust
/// let _cfg = Config::dhcpv4(Default::default());
/// ```
#[cfg(feature = "dhcpv4")]
pub fn dhcpv4(config: DhcpConfig) -> Self {
Self {
ipv4: ConfigV4::Dhcp(config),
#[cfg(feature = "proto-ipv6")]
ipv6: ConfigV6::None,
}
}
}
/// Network stack IPv4 configuration.
#[cfg(feature = "proto-ipv4")]
pub enum ConfigV4 {
/// Use a static IPv4 address configuration.
Static(StaticConfigV4),
/// Use DHCP to obtain an IP address configuration.
#[cfg(feature = "dhcpv4")]
Dhcp(DhcpConfig),
/// Do not configure IPv6.
None,
}
/// Network stack IPv6 configuration.
#[cfg(feature = "proto-ipv6")]
pub enum ConfigV6 {
/// Use a static IPv6 address configuration.
Static(StaticConfigV6),
/// Do not configure IPv6.
None,
}
/// A network stack.
@ -131,7 +205,10 @@ pub struct Stack<D: Driver> {
struct Inner<D: Driver> {
device: D,
link_up: bool,
config: Option<StaticConfig>,
#[cfg(feature = "proto-ipv4")]
static_v4: Option<StaticConfigV4>,
#[cfg(feature = "proto-ipv6")]
static_v6: Option<StaticConfigV6>,
#[cfg(feature = "dhcpv4")]
dhcp_socket: Option<SocketHandle>,
#[cfg(feature = "dns")]
@ -187,7 +264,10 @@ impl<D: Driver + 'static> Stack<D> {
let mut inner = Inner {
device,
link_up: false,
config: None,
#[cfg(feature = "proto-ipv4")]
static_v4: None,
#[cfg(feature = "proto-ipv6")]
static_v6: None,
#[cfg(feature = "dhcpv4")]
dhcp_socket: None,
#[cfg(feature = "dns")]
@ -199,17 +279,26 @@ impl<D: Driver + 'static> Stack<D> {
dns_waker: WakerRegistration::new(),
};
match config {
Config::Static(config) => {
inner.apply_config(&mut socket, config);
#[cfg(feature = "proto-ipv4")]
match config.ipv4 {
ConfigV4::Static(config) => {
inner.apply_config_v4(&mut socket, config);
}
#[cfg(feature = "dhcpv4")]
Config::Dhcp(config) => {
ConfigV4::Dhcp(config) => {
let mut dhcp_socket = smoltcp::socket::dhcpv4::Socket::new();
inner.apply_dhcp_config(&mut dhcp_socket, config);
let handle = socket.sockets.add(dhcp_socket);
inner.dhcp_socket = Some(handle);
}
ConfigV4::None => {}
}
#[cfg(feature = "proto-ipv6")]
match config.ipv6 {
ConfigV6::Static(config) => {
inner.apply_config_v6(&mut socket, config);
}
ConfigV6::None => {}
}
Self {
@ -239,12 +328,40 @@ impl<D: Driver + 'static> Stack<D> {
/// Get whether the network stack has a valid IP configuration.
/// This is true if the network stack has a static IP configuration or if DHCP has completed
pub fn is_config_up(&self) -> bool {
self.with(|_s, i| i.config.is_some())
let v4_up;
let v6_up;
#[cfg(feature = "proto-ipv4")]
{
v4_up = self.config_v4().is_some();
}
#[cfg(not(feature = "proto-ipv4"))]
{
v4_up = false;
}
#[cfg(feature = "proto-ipv6")]
{
v6_up = self.config_v6().is_some();
}
#[cfg(not(feature = "proto-ipv6"))]
{
v6_up = false;
}
v4_up || v6_up
}
/// Get the current IP configuration.
pub fn config(&self) -> Option<StaticConfig> {
self.with(|_s, i| i.config.clone())
/// Get the current IPv4 configuration.
#[cfg(feature = "proto-ipv4")]
pub fn config_v4(&self) -> Option<StaticConfigV4> {
self.with(|_s, i| i.static_v4.clone())
}
/// Get the current IPv6 configuration.
#[cfg(feature = "proto-ipv6")]
pub fn config_v6(&self) -> Option<StaticConfigV6> {
self.with(|_s, i| i.static_v6.clone())
}
/// Run the network stack.
@ -264,6 +381,7 @@ impl<D: Driver + 'static> Stack<D> {
pub async fn dns_query(&self, name: &str, qtype: dns::DnsQueryType) -> Result<Vec<IpAddress, 1>, dns::Error> {
// For A and AAAA queries we try detect whether `name` is just an IP address
match qtype {
#[cfg(feature = "proto-ipv4")]
dns::DnsQueryType::A => {
if let Ok(ip) = name.parse().map(IpAddress::Ipv4) {
return Ok([ip].into_iter().collect());
@ -374,7 +492,8 @@ impl SocketStack {
}
impl<D: Driver + 'static> Inner<D> {
fn apply_config(&mut self, s: &mut SocketStack, config: StaticConfig) {
#[cfg(feature = "proto-ipv4")]
fn apply_config_v4(&mut self, s: &mut SocketStack, config: StaticConfigV4) {
#[cfg(feature = "medium-ethernet")]
let medium = self.device.capabilities().medium;
@ -403,14 +522,86 @@ impl<D: Driver + 'static> Inner<D> {
debug!(" DNS server {}: {}", i, s);
}
self.static_v4 = Some(config);
#[cfg(feature = "dns")]
{
let socket = s.sockets.get_mut::<smoltcp::socket::dns::Socket>(self.dns_socket);
let servers: Vec<IpAddress, 3> = config.dns_servers.iter().map(|c| IpAddress::Ipv4(*c)).collect();
socket.update_servers(&servers[..]);
self.update_dns_servers(s)
}
}
/// Replaces the current IPv6 static configuration with a newly supplied config.
#[cfg(feature = "proto-ipv6")]
fn apply_config_v6(&mut self, s: &mut SocketStack, config: StaticConfigV6) {
#[cfg(feature = "medium-ethernet")]
let medium = self.device.capabilities().medium;
debug!("Acquired IPv6 configuration:");
debug!(" IP address: {}", config.address);
s.iface.update_ip_addrs(|addrs| {
if addrs.is_empty() {
addrs.push(IpCidr::Ipv6(config.address)).unwrap();
} else {
addrs[0] = IpCidr::Ipv6(config.address);
}
});
#[cfg(feature = "medium-ethernet")]
if Medium::Ethernet == medium {
if let Some(gateway) = config.gateway {
debug!(" Default gateway: {}", gateway);
s.iface.routes_mut().add_default_ipv6_route(gateway).unwrap();
} else {
debug!(" Default gateway: None");
s.iface.routes_mut().remove_default_ipv6_route();
}
}
for (i, s) in config.dns_servers.iter().enumerate() {
debug!(" DNS server {}: {}", i, s);
}
self.config = Some(config)
self.static_v6 = Some(config);
#[cfg(feature = "dns")]
{
self.update_dns_servers(s)
}
}
#[cfg(feature = "dns")]
fn update_dns_servers(&mut self, s: &mut SocketStack) {
let socket = s.sockets.get_mut::<smoltcp::socket::dns::Socket>(self.dns_socket);
let servers_v4;
#[cfg(feature = "proto-ipv4")]
{
servers_v4 = self
.static_v4
.iter()
.flat_map(|cfg| cfg.dns_servers.iter().map(|c| IpAddress::Ipv4(*c)));
};
#[cfg(not(feature = "proto-ipv4"))]
{
servers_v4 = core::iter::empty();
}
let servers_v6;
#[cfg(feature = "proto-ipv6")]
{
servers_v6 = self
.static_v6
.iter()
.flat_map(|cfg| cfg.dns_servers.iter().map(|c| IpAddress::Ipv6(*c)));
}
#[cfg(not(feature = "proto-ipv6"))]
{
servers_v6 = core::iter::empty();
}
// Prefer the v6 DNS servers over the v4 servers
let servers: Vec<IpAddress, 6> = servers_v6.chain(servers_v4).collect();
socket.update_servers(&servers[..]);
}
#[cfg(feature = "dhcpv4")]
@ -430,9 +621,15 @@ impl<D: Driver + 'static> Inner<D> {
s.iface.update_ip_addrs(|ip_addrs| ip_addrs.clear());
#[cfg(feature = "medium-ethernet")]
if medium == Medium::Ethernet {
s.iface.routes_mut().remove_default_ipv4_route();
#[cfg(feature = "proto-ipv4")]
{
s.iface.routes_mut().remove_default_ipv4_route();
}
}
#[cfg(feature = "proto-ipv4")]
{
self.static_v4 = None
}
self.config = None
}
fn poll(&mut self, cx: &mut Context<'_>, s: &mut SocketStack) {
@ -470,12 +667,12 @@ impl<D: Driver + 'static> Inner<D> {
None => {}
Some(dhcpv4::Event::Deconfigured) => self.unapply_config(s),
Some(dhcpv4::Event::Configured(config)) => {
let config = StaticConfig {
let config = StaticConfigV4 {
address: config.address,
gateway: config.router,
dns_servers: config.dns_servers,
};
self.apply_config(s, config)
self.apply_config_v4(s, config)
}
}
} else if old_link_up {

13
embassy-net/src/tcp.rs
View file

@ -278,10 +278,18 @@ impl<'a> TcpSocket<'a> {
self.io.with(|s, _| s.may_send())
}
/// Get whether the socket is ready to receive data, i.e. whether there is some pending data in the receive buffer.
/// return whether the recieve half of the full-duplex connection is open.
/// This function returns true if it’s possible to receive data from the remote endpoint.
/// It will return true while there is data in the receive buffer, and if there isn’t,
/// as long as the remote endpoint has not closed the connection.
pub fn may_recv(&self) -> bool {
self.io.with(|s, _| s.may_recv())
}
/// Get whether the socket is ready to receive data, i.e. whether there is some pending data in the receive buffer.
pub fn can_recv(&self) -> bool {
self.io.with(|s, _| s.can_recv())
}
}
impl<'a> Drop for TcpSocket<'a> {
@ -472,7 +480,10 @@ pub mod client {
Self: 'a,
{
let addr: crate::IpAddress = match remote.ip() {
#[cfg(feature = "proto-ipv4")]
IpAddr::V4(addr) => crate::IpAddress::Ipv4(crate::Ipv4Address::from_bytes(&addr.octets())),
#[cfg(not(feature = "proto-ipv4"))]
IpAddr::V4(_) => panic!("ipv4 support not enabled"),
#[cfg(feature = "proto-ipv6")]
IpAddr::V6(addr) => crate::IpAddress::Ipv6(crate::Ipv6Address::from_bytes(&addr.octets())),
#[cfg(not(feature = "proto-ipv6"))]

9
embassy-nrf/Cargo.toml
View file

@ -16,7 +16,8 @@ flavors = [
]
[features]
default = [
default = ["rt"]
rt = [
"nrf52805-pac?/rt",
"nrf52810-pac?/rt",
"nrf52811-pac?/rt",
@ -31,7 +32,7 @@ default = [
time = ["dep:embassy-time"]
defmt = ["dep:defmt", "embassy-executor/defmt", "embassy-sync/defmt", "embassy-usb-driver?/defmt", "embedded-io?/defmt", "embassy-embedded-hal/defmt"]
defmt = ["dep:defmt", "embassy-sync/defmt", "embassy-usb-driver?/defmt", "embedded-io?/defmt", "embassy-embedded-hal/defmt"]
# Enable nightly-only features
nightly = ["embedded-hal-1", "embedded-hal-async", "dep:embassy-usb-driver", "embedded-storage-async", "dep:embedded-io", "embassy-embedded-hal/nightly"]
@ -90,11 +91,9 @@ _dppi = []
_gpio-p1 = []
[dependencies]
embassy-executor = { version = "0.2.0", path = "../embassy-executor", optional = true }
embassy-time = { version = "0.1.0", path = "../embassy-time", optional = true }
embassy-sync = { version = "0.2.0", path = "../embassy-sync" }
embassy-cortex-m = { version = "0.1.0", path = "../embassy-cortex-m", features = ["prio-bits-3"]}
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common" }
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common", features = ["cortex-m", "prio-bits-3"] }
embassy-embedded-hal = {version = "0.1.0", path = "../embassy-embedded-hal" }
embassy-usb-driver = {version = "0.1.0", path = "../embassy-usb-driver", optional=true }

17
embassy-nrf/src/buffered_uarte.rs
View file

@ -15,7 +15,6 @@ use core::slice;
use core::sync::atomic::{compiler_fence, AtomicU8, AtomicUsize, Ordering};
use core::task::Poll;
use embassy_cortex_m::interrupt::Interrupt;
use embassy_hal_common::atomic_ring_buffer::RingBuffer;
use embassy_hal_common::{into_ref, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
@ -24,13 +23,13 @@ pub use pac::uarte0::{baudrate::BAUDRATE_A as Baudrate, config::PARITY_A as Pari
use crate::gpio::sealed::Pin;
use crate::gpio::{self, AnyPin, Pin as GpioPin, PselBits};
use crate::interrupt::{self, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
use crate::ppi::{
self, AnyConfigurableChannel, AnyGroup, Channel, ConfigurableChannel, Event, Group, Ppi, PpiGroup, Task,
};
use crate::timer::{Instance as TimerInstance, Timer};
use crate::uarte::{apply_workaround_for_enable_anomaly, Config, Instance as UarteInstance};
use crate::{pac, Peripheral};
use crate::{interrupt, pac, Peripheral};
mod sealed {
use super::*;
@ -77,7 +76,7 @@ pub struct InterruptHandler<U: UarteInstance> {
_phantom: PhantomData<U>,
}
impl<U: UarteInstance> interrupt::Handler<U::Interrupt> for InterruptHandler<U> {
impl<U: UarteInstance> interrupt::typelevel::Handler<U::Interrupt> for InterruptHandler<U> {
unsafe fn on_interrupt() {
//trace!("irq: start");
let r = U::regs();
@ -202,7 +201,7 @@ impl<'d, U: UarteInstance, T: TimerInstance> BufferedUarte<'d, U, T> {
ppi_ch1: impl Peripheral<P = impl ConfigurableChannel> + 'd,
ppi_ch2: impl Peripheral<P = impl ConfigurableChannel> + 'd,
ppi_group: impl Peripheral<P = impl Group> + 'd,
_irq: impl interrupt::Binding<U::Interrupt, InterruptHandler<U>> + 'd,
_irq: impl interrupt::typelevel::Binding<U::Interrupt, InterruptHandler<U>> + 'd,
rxd: impl Peripheral<P = impl GpioPin> + 'd,
txd: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -237,7 +236,7 @@ impl<'d, U: UarteInstance, T: TimerInstance> BufferedUarte<'d, U, T> {
ppi_ch1: impl Peripheral<P = impl ConfigurableChannel> + 'd,
ppi_ch2: impl Peripheral<P = impl ConfigurableChannel> + 'd,
ppi_group: impl Peripheral<P = impl Group> + 'd,
_irq: impl interrupt::Binding<U::Interrupt, InterruptHandler<U>> + 'd,
_irq: impl interrupt::typelevel::Binding<U::Interrupt, InterruptHandler<U>> + 'd,
rxd: impl Peripheral<P = impl GpioPin> + 'd,
txd: impl Peripheral<P = impl GpioPin> + 'd,
cts: impl Peripheral<P = impl GpioPin> + 'd,
@ -362,8 +361,8 @@ impl<'d, U: UarteInstance, T: TimerInstance> BufferedUarte<'d, U, T> {
ppi_ch2.disable();
ppi_group.add_channel(&ppi_ch2);
unsafe { U::Interrupt::steal() }.pend();
unsafe { U::Interrupt::steal() }.enable();
U::Interrupt::pend();
unsafe { U::Interrupt::enable() };
Self {
_peri: peri,
@ -375,7 +374,7 @@ impl<'d, U: UarteInstance, T: TimerInstance> BufferedUarte<'d, U, T> {
}
fn pend_irq() {
unsafe { <U::Interrupt as Interrupt>::steal() }.pend()
U::Interrupt::pend()
}
/// Adjust the baud rate to the provided value.

56
embassy-nrf/src/chips/nrf52805.rs
View file

@ -208,33 +208,29 @@ impl_ppi_channel!(PPI_CH31, 31 => static);
impl_saadc_input!(P0_04, ANALOG_INPUT2);
impl_saadc_input!(P0_05, ANALOG_INPUT3);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0);
declare!(SPIM0_SPIS0_SPI0);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
}
embassy_hal_common::interrupt_mod!(
POWER_CLOCK,
RADIO,
UARTE0_UART0,
TWIM0_TWIS0_TWI0,
SPIM0_SPIS0_SPI0,
GPIOTE,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
TEMP,
RNG,
ECB,
CCM_AAR,
WDT,
RTC1,
QDEC,
SWI0_EGU0,
SWI1_EGU1,
SWI2,
SWI3,
SWI4,
SWI5,
);

62
embassy-nrf/src/chips/nrf52810.rs
View file

@ -234,36 +234,32 @@ impl_saadc_input!(P0_29, ANALOG_INPUT5);
impl_saadc_input!(P0_30, ANALOG_INPUT6);
impl_saadc_input!(P0_31, ANALOG_INPUT7);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0);
declare!(SPIM0_SPIS0_SPI0);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
declare!(PWM0);
declare!(PDM);
}
embassy_hal_common::interrupt_mod!(
POWER_CLOCK,
RADIO,
UARTE0_UART0,
TWIM0_TWIS0_TWI0,
SPIM0_SPIS0_SPI0,
GPIOTE,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
TEMP,
RNG,
ECB,
CCM_AAR,
WDT,
RTC1,
QDEC,
COMP,
SWI0_EGU0,
SWI1_EGU1,
SWI2,
SWI3,
SWI4,
SWI5,
PWM0,
PDM,
);

62
embassy-nrf/src/chips/nrf52811.rs
View file

@ -236,36 +236,32 @@ impl_saadc_input!(P0_29, ANALOG_INPUT5);
impl_saadc_input!(P0_30, ANALOG_INPUT6);
impl_saadc_input!(P0_31, ANALOG_INPUT7);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0_SPIM0_SPIS0_SPI0);
declare!(SPIM1_SPIS1_SPI1);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
declare!(PWM0);
declare!(PDM);
}
embassy_hal_common::interrupt_mod!(
POWER_CLOCK,
RADIO,
UARTE0_UART0,
TWIM0_TWIS0_TWI0_SPIM0_SPIS0_SPI0,
SPIM1_SPIS1_SPI1,
GPIOTE,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
TEMP,
RNG,
ECB,
CCM_AAR,
WDT,
RTC1,
QDEC,
COMP,
SWI0_EGU0,
SWI1_EGU1,
SWI2,
SWI3,
SWI4,
SWI5,
PWM0,
PDM,
);

60
embassy-nrf/src/chips/nrf52820.rs
View file

@ -224,35 +224,31 @@ impl_ppi_channel!(PPI_CH29, 29 => static);
impl_ppi_channel!(PPI_CH30, 30 => static);
impl_ppi_channel!(PPI_CH31, 31 => static);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(GPIOTE);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(USBD);
}
embassy_hal_common::interrupt_mod!(
POWER_CLOCK,
RADIO,
UARTE0_UART0,
SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0,
SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1,
GPIOTE,
TIMER0,
TIMER1,
TIMER2,
RTC0,
TEMP,
RNG,
ECB,
CCM_AAR,
WDT,
RTC1,
QDEC,
COMP,
SWI0_EGU0,
SWI1_EGU1,
SWI2_EGU2,
SWI3_EGU3,
SWI4_EGU4,
SWI5_EGU5,
TIMER3,
USBD,
);

82
embassy-nrf/src/chips/nrf52832.rs
View file

@ -263,46 +263,42 @@ impl_saadc_input!(P0_31, ANALOG_INPUT7);
impl_i2s!(I2S, I2S, I2S);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(FPU);
declare!(I2S);
}
embassy_hal_common::interrupt_mod!(
POWER_CLOCK,
RADIO,
UARTE0_UART0,
SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0,
SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1,
NFCT,
GPIOTE,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
TEMP,
RNG,
ECB,
CCM_AAR,
WDT,
RTC1,
QDEC,
COMP_LPCOMP,
SWI0_EGU0,
SWI1_EGU1,
SWI2_EGU2,
SWI3_EGU3,
SWI4_EGU4,
SWI5_EGU5,
TIMER3,
TIMER4,
PWM0,
PDM,
MWU,
PWM1,
PWM2,
SPIM2_SPIS2_SPI2,
RTC2,
FPU,
I2S,
);

90
embassy-nrf/src/chips/nrf52833.rs
View file

@ -306,50 +306,46 @@ impl_saadc_input!(P0_31, ANALOG_INPUT7);
impl_i2s!(I2S, I2S, I2S);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(FPU);
declare!(USBD);
declare!(UARTE1);
declare!(PWM3);
declare!(SPIM3);
declare!(I2S);
}
embassy_hal_common::interrupt_mod!(
POWER_CLOCK,
RADIO,
UARTE0_UART0,
SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0,
SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1,
NFCT,
GPIOTE,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
TEMP,
RNG,
ECB,
CCM_AAR,
WDT,
RTC1,
QDEC,
COMP_LPCOMP,
SWI0_EGU0,
SWI1_EGU1,
SWI2_EGU2,
SWI3_EGU3,
SWI4_EGU4,
SWI5_EGU5,
TIMER3,
TIMER4,
PWM0,
PDM,
MWU,
PWM1,
PWM2,
SPIM2_SPIS2_SPI2,
RTC2,
FPU,
USBD,
UARTE1,
PWM3,
SPIM3,
I2S,
);

94
embassy-nrf/src/chips/nrf52840.rs
View file

@ -311,52 +311,48 @@ impl_saadc_input!(P0_31, ANALOG_INPUT7);
impl_i2s!(I2S, I2S, I2S);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(FPU);
declare!(USBD);
declare!(UARTE1);
declare!(QSPI);
declare!(CRYPTOCELL);
declare!(PWM3);
declare!(SPIM3);
declare!(I2S);
}
embassy_hal_common::interrupt_mod!(
POWER_CLOCK,
RADIO,
UARTE0_UART0,
SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0,
SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1,
NFCT,
GPIOTE,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
TEMP,
RNG,
ECB,
CCM_AAR,
WDT,
RTC1,
QDEC,
COMP_LPCOMP,
SWI0_EGU0,
SWI1_EGU1,
SWI2_EGU2,
SWI3_EGU3,
SWI4_EGU4,
SWI5_EGU5,
TIMER3,
TIMER4,
PWM0,
PDM,
MWU,
PWM1,
PWM2,
SPIM2_SPIS2_SPI2,
RTC2,
FPU,
USBD,
UARTE1,
QSPI,
CRYPTOCELL,
PWM3,
SPIM3,
I2S,
);

92
embassy-nrf/src/chips/nrf5340_app.rs
View file

@ -5,6 +5,8 @@ pub mod pac {
// The nRF5340 has a secure and non-secure (NS) mode.
// To avoid cfg spam, we remove _ns or _s suffixes here.
pub use nrf5340_app_pac::NVIC_PRIO_BITS;
#[doc(no_inline)]
pub use nrf5340_app_pac::{
interrupt,
@ -504,50 +506,46 @@ impl_saadc_input!(P0_18, ANALOG_INPUT5);
impl_saadc_input!(P0_19, ANALOG_INPUT6);
impl_saadc_input!(P0_20, ANALOG_INPUT7);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(FPU);
declare!(CACHE);
declare!(SPU);
declare!(CLOCK_POWER);
declare!(SERIAL0);
declare!(SERIAL1);
declare!(SPIM4);
declare!(SERIAL2);
declare!(SERIAL3);
declare!(GPIOTE0);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(RTC1);
declare!(WDT0);
declare!(WDT1);
declare!(COMP_LPCOMP);
declare!(EGU0);
declare!(EGU1);
declare!(EGU2);
declare!(EGU3);
declare!(EGU4);
declare!(EGU5);
declare!(PWM0);
declare!(PWM1);
declare!(PWM2);
declare!(PWM3);
declare!(PDM0);
declare!(I2S0);
declare!(IPC);
declare!(QSPI);
declare!(NFCT);
declare!(GPIOTE1);
declare!(QDEC0);
declare!(QDEC1);
declare!(USBD);
declare!(USBREGULATOR);
declare!(KMU);
declare!(CRYPTOCELL);
}
embassy_hal_common::interrupt_mod!(
FPU,
CACHE,
SPU,
CLOCK_POWER,
SERIAL0,
SERIAL1,
SPIM4,
SERIAL2,
SERIAL3,
GPIOTE0,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
RTC1,
WDT0,
WDT1,
COMP_LPCOMP,
EGU0,
EGU1,
EGU2,
EGU3,
EGU4,
EGU5,
PWM0,
PWM1,
PWM2,
PWM3,
PDM0,
I2S0,
IPC,
QSPI,
NFCT,
GPIOTE1,
QDEC0,
QDEC1,
USBD,
USBREGULATOR,
KMU,
CRYPTOCELL,
);

50
embassy-nrf/src/chips/nrf5340_net.rs
View file

@ -5,6 +5,8 @@ pub mod pac {
// The nRF5340 has a secure and non-secure (NS) mode.
// To avoid cfg spam, we remove _ns or _s suffixes here.
pub use nrf5340_net_pac::NVIC_PRIO_BITS;
#[doc(no_inline)]
pub use nrf5340_net_pac::{
interrupt,
@ -340,29 +342,25 @@ impl_ppi_channel!(PPI_CH29, 29 => configurable);
impl_ppi_channel!(PPI_CH30, 30 => configurable);
impl_ppi_channel!(PPI_CH31, 31 => configurable);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(CLOCK_POWER);
declare!(RADIO);
declare!(RNG);
declare!(GPIOTE);
declare!(WDT);
declare!(TIMER0);
declare!(ECB);
declare!(AAR_CCM);
declare!(TEMP);
declare!(RTC0);
declare!(IPC);
declare!(SERIAL0);
declare!(EGU0);
declare!(RTC1);
declare!(TIMER1);
declare!(TIMER2);
declare!(SWI0);
declare!(SWI1);
declare!(SWI2);
declare!(SWI3);
}
embassy_hal_common::interrupt_mod!(
CLOCK_POWER,
RADIO,
RNG,
GPIOTE,
WDT,
TIMER0,
ECB,
AAR_CCM,
TEMP,
RTC0,
IPC,
SERIAL0,
EGU0,
RTC1,
TIMER1,
TIMER2,
SWI0,
SWI1,
SWI2,
SWI3,
);

72
embassy-nrf/src/chips/nrf9160.rs
View file

@ -5,6 +5,8 @@ pub mod pac {
// The nRF9160 has a secure and non-secure (NS) mode.
// To avoid cfg spam, we remove _ns or _s suffixes here.
pub use nrf9160_pac::NVIC_PRIO_BITS;
#[doc(no_inline)]
pub use nrf9160_pac::{
interrupt,
@ -366,40 +368,36 @@ impl_saadc_input!(P0_18, ANALOG_INPUT5);
impl_saadc_input!(P0_19, ANALOG_INPUT6);
impl_saadc_input!(P0_20, ANALOG_INPUT7);
pub mod irqs {
use embassy_cortex_m::interrupt::_export::declare;
use crate::pac::Interrupt as InterruptEnum;
declare!(SPU);
declare!(CLOCK_POWER);
declare!(UARTE0_SPIM0_SPIS0_TWIM0_TWIS0);
declare!(UARTE1_SPIM1_SPIS1_TWIM1_TWIS1);
declare!(UARTE2_SPIM2_SPIS2_TWIM2_TWIS2);
declare!(UARTE3_SPIM3_SPIS3_TWIM3_TWIS3);
declare!(GPIOTE0);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(RTC1);
declare!(WDT);
declare!(EGU0);
declare!(EGU1);
declare!(EGU2);
declare!(EGU3);
declare!(EGU4);
declare!(EGU5);
declare!(PWM0);
declare!(PWM1);
declare!(PWM2);
declare!(PDM);
declare!(PWM3);
declare!(I2S);
declare!(IPC);
declare!(FPU);
declare!(GPIOTE1);
declare!(KMU);
declare!(CRYPTOCELL);
}
embassy_hal_common::interrupt_mod!(
SPU,
CLOCK_POWER,
UARTE0_SPIM0_SPIS0_TWIM0_TWIS0,
UARTE1_SPIM1_SPIS1_TWIM1_TWIS1,
UARTE2_SPIM2_SPIS2_TWIM2_TWIS2,
UARTE3_SPIM3_SPIS3_TWIM3_TWIS3,
GPIOTE0,
SAADC,
TIMER0,
TIMER1,
TIMER2,
RTC0,
RTC1,
WDT,
EGU0,
EGU1,
EGU2,
EGU3,
EGU4,
EGU5,
PWM0,
PWM1,
PWM2,
PDM,
PWM3,
I2S,
IPC,
FPU,
GPIOTE1,
KMU,
CRYPTOCELL,
);

55
embassy-nrf/src/gpiote.rs
View file

@ -9,7 +9,7 @@ use embassy_sync::waitqueue::AtomicWaker;
use crate::gpio::sealed::Pin as _;
use crate::gpio::{AnyPin, Flex, Input, Output, Pin as GpioPin};
use crate::interrupt::{Interrupt, InterruptExt};
use crate::interrupt::InterruptExt;
use crate::ppi::{Event, Task};
use crate::{interrupt, pac, peripherals};
@ -74,42 +74,41 @@ pub(crate) fn init(irq_prio: crate::interrupt::Priority) {
}
// Enable interrupts
cfg_if::cfg_if! {
if #[cfg(any(feature="nrf5340-app-s", feature="nrf9160-s"))] {
let irq = unsafe { interrupt::GPIOTE0::steal() };
} else if #[cfg(any(feature="nrf5340-app-ns", feature="nrf9160-ns"))] {
let irq = unsafe { interrupt::GPIOTE1::steal() };
} else {
let irq = unsafe { interrupt::GPIOTE::steal() };
}
}
#[cfg(any(feature = "nrf5340-app-s", feature = "nrf9160-s"))]
let irq = interrupt::GPIOTE0;
#[cfg(any(feature = "nrf5340-app-ns", feature = "nrf9160-ns"))]
let irq = interrupt::GPIOTE1;
#[cfg(any(feature = "_nrf52", feature = "nrf5340-net"))]
let irq = interrupt::GPIOTE;
irq.unpend();
irq.set_priority(irq_prio);
irq.enable();
unsafe { irq.enable() };
let g = regs();
g.events_port.write(|w| w);
g.intenset.write(|w| w.port().set());
}
cfg_if::cfg_if! {
if #[cfg(any(feature="nrf5340-app-s", feature="nrf9160-s"))] {
#[interrupt]
fn GPIOTE0() {
unsafe { handle_gpiote_interrupt() };
}
} else if #[cfg(any(feature="nrf5340-app-ns", feature="nrf9160-ns"))] {
#[interrupt]
fn GPIOTE1() {
unsafe { handle_gpiote_interrupt() };
}
} else {
#[interrupt]
fn GPIOTE() {
unsafe { handle_gpiote_interrupt() };
}
}
#[cfg(any(feature = "nrf5340-app-s", feature = "nrf9160-s"))]
#[cfg(feature = "rt")]
#[interrupt]
fn GPIOTE0() {
unsafe { handle_gpiote_interrupt() };
}
#[cfg(any(feature = "nrf5340-app-ns", feature = "nrf9160-ns"))]
#[cfg(feature = "rt")]
#[interrupt]
fn GPIOTE1() {
unsafe { handle_gpiote_interrupt() };
}
#[cfg(any(feature = "_nrf52", feature = "nrf5340-net"))]
#[cfg(feature = "rt")]
#[interrupt]
fn GPIOTE() {
unsafe { handle_gpiote_interrupt() };
}
unsafe fn handle_gpiote_interrupt() {

19
embassy-nrf/src/i2s.rs
View file

@ -9,15 +9,14 @@ use core::ops::{Deref, DerefMut};
use core::sync::atomic::{compiler_fence, Ordering};
use core::task::Poll;
use embassy_cortex_m::interrupt::InterruptExt;
use embassy_hal_common::drop::OnDrop;
use embassy_hal_common::{into_ref, PeripheralRef};
use crate::gpio::{AnyPin, Pin as GpioPin};
use crate::interrupt::{self, Interrupt};
use crate::interrupt::typelevel::Interrupt;
use crate::pac::i2s::RegisterBlock;
use crate::util::{slice_in_ram_or, slice_ptr_parts};
use crate::{Peripheral, EASY_DMA_SIZE};
use crate::{interrupt, Peripheral, EASY_DMA_SIZE};
/// Type alias for `MultiBuffering` with 2 buffers.
pub type DoubleBuffering<S, const NS: usize> = MultiBuffering<S, 2, NS>;
@ -368,7 +367,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let device = Device::<T>::new();
let s = T::state();
@ -409,7 +408,7 @@ impl<'d, T: Instance> I2S<'d, T> {
/// Create a new I2S in master mode
pub fn new_master(
i2s: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
mck: impl Peripheral<P = impl GpioPin> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
lrck: impl Peripheral<P = impl GpioPin> + 'd,
@ -432,7 +431,7 @@ impl<'d, T: Instance> I2S<'d, T> {
/// Create a new I2S in slave mode
pub fn new_slave(
i2s: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
lrck: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -564,8 +563,8 @@ impl<'d, T: Instance> I2S<'d, T> {
}
fn setup_interrupt(&self) {
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
let device = Device::<T>::new();
device.disable_tx_ptr_interrupt();
@ -1174,7 +1173,7 @@ pub(crate) mod sealed {
/// I2S peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_i2s {
@ -1189,7 +1188,7 @@ macro_rules! impl_i2s {
}
}
impl crate::i2s::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

33
embassy-nrf/src/lib.rs
View file

@ -93,21 +93,14 @@ pub mod wdt;
#[cfg_attr(feature = "_nrf9160", path = "chips/nrf9160.rs")]
mod chip;
pub mod interrupt {
//! Interrupt definitions and macros to bind them.
pub use cortex_m::interrupt::{CriticalSection, Mutex};
pub use embassy_cortex_m::interrupt::{Binding, Handler, Interrupt, InterruptExt, Priority};
pub use crate::chip::irqs::*;
/// Macro to bind interrupts to handlers.
///
/// This defines the right interrupt handlers, and creates a unit struct (like `struct Irqs;`)
/// and implements the right [`Binding`]s for it. You can pass this struct to drivers to
/// prove at compile-time that the right interrupts have been bound.
// developer note: this macro can't be in `embassy-cortex-m` due to the use of `$crate`.
#[macro_export]
macro_rules! bind_interrupts {
/// Macro to bind interrupts to handlers.
///
/// This defines the right interrupt handlers, and creates a unit struct (like `struct Irqs;`)
/// and implements the right [`Binding`]s for it. You can pass this struct to drivers to
/// prove at compile-time that the right interrupts have been bound.
// developer note: this macro can't be in `embassy-hal-common` due to the use of `$crate`.
#[macro_export]
macro_rules! bind_interrupts {
($vis:vis struct $name:ident { $($irq:ident => $($handler:ty),*;)* }) => {
$vis struct $name;
@ -116,17 +109,16 @@ pub mod interrupt {
#[no_mangle]
unsafe extern "C" fn $irq() {
$(
<$handler as $crate::interrupt::Handler<$crate::interrupt::$irq>>::on_interrupt();
<$handler as $crate::interrupt::typelevel::Handler<$crate::interrupt::typelevel::$irq>>::on_interrupt();
)*
}
$(
unsafe impl $crate::interrupt::Binding<$crate::interrupt::$irq, $handler> for $name {}
unsafe impl $crate::interrupt::typelevel::Binding<$crate::interrupt::typelevel::$irq, $handler> for $name {}
)*
)*
};
}
}
// Reexports
@ -135,10 +127,11 @@ pub use chip::pac;
#[cfg(not(feature = "unstable-pac"))]
pub(crate) use chip::pac;
pub use chip::{peripherals, Peripherals, EASY_DMA_SIZE};
pub use embassy_cortex_m::executor;
pub use embassy_cortex_m::interrupt::_export::interrupt;
pub use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
pub use crate::chip::interrupt;
pub use crate::pac::NVIC_PRIO_BITS;
pub mod config {
//! Configuration options used when initializing the HAL.

17
embassy-nrf/src/pdm.rs
View file

@ -6,7 +6,6 @@ use core::marker::PhantomData;
use core::sync::atomic::{compiler_fence, Ordering};
use core::task::Poll;
use embassy_cortex_m::interrupt::Interrupt;
use embassy_hal_common::drop::OnDrop;
use embassy_hal_common::{into_ref, PeripheralRef};
use futures::future::poll_fn;
@ -14,15 +13,15 @@ use futures::future::poll_fn;
use crate::chip::EASY_DMA_SIZE;
use crate::gpio::sealed::Pin;
use crate::gpio::{AnyPin, Pin as GpioPin};
use crate::interrupt::{self, InterruptExt};
use crate::Peripheral;
use crate::interrupt::typelevel::Interrupt;
use crate::{interrupt, Peripheral};
/// Interrupt handler.
pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
T::regs().intenclr.write(|w| w.end().clear());
T::state().waker.wake();
@ -53,7 +52,7 @@ impl<'d, T: Instance> Pdm<'d, T> {
/// Create PDM driver
pub fn new(
pdm: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
clk: impl Peripheral<P = impl GpioPin> + 'd,
din: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -94,8 +93,8 @@ impl<'d, T: Instance> Pdm<'d, T> {
r.gainr.write(|w| w.gainr().default_gain());
// IRQ
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
r.enable.write(|w| w.enable().set_bit());
@ -274,7 +273,7 @@ pub(crate) mod sealed {
/// PDM peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_pdm {
@ -289,7 +288,7 @@ macro_rules! impl_pdm {
}
}
impl crate::pdm::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

7
embassy-nrf/src/pwm.rs
View file

@ -8,10 +8,9 @@ use embassy_hal_common::{into_ref, PeripheralRef};
use crate::gpio::sealed::Pin as _;
use crate::gpio::{AnyPin, Pin as GpioPin, PselBits};
use crate::interrupt::Interrupt;
use crate::ppi::{Event, Task};
use crate::util::slice_in_ram_or;
use crate::{pac, Peripheral};
use crate::{interrupt, pac, Peripheral};
/// SimplePwm is the traditional pwm interface you're probably used to, allowing
/// to simply set a duty cycle across up to four channels.
@ -843,7 +842,7 @@ pub(crate) mod sealed {
/// PWM peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_pwm {
@ -854,7 +853,7 @@ macro_rules! impl_pwm {
}
}
impl crate::pwm::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

17
embassy-nrf/src/qdec.rs
View file

@ -6,12 +6,11 @@ use core::future::poll_fn;
use core::marker::PhantomData;
use core::task::Poll;
use embassy_cortex_m::interrupt::Interrupt;
use embassy_hal_common::{into_ref, PeripheralRef};
use crate::gpio::sealed::Pin as _;
use crate::gpio::{AnyPin, Pin as GpioPin};
use crate::interrupt::InterruptExt;
use crate::interrupt::typelevel::Interrupt;
use crate::{interrupt, Peripheral};
/// Quadrature decoder driver.
@ -51,7 +50,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
T::regs().intenclr.write(|w| w.reportrdy().clear());
T::state().waker.wake();
@ -62,7 +61,7 @@ impl<'d, T: Instance> Qdec<'d, T> {
/// Create a new QDEC.
pub fn new(
qdec: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
a: impl Peripheral<P = impl GpioPin> + 'd,
b: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -74,7 +73,7 @@ impl<'d, T: Instance> Qdec<'d, T> {
/// Create a new QDEC, with a pin for LED output.
pub fn new_with_led(
qdec: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
a: impl Peripheral<P = impl GpioPin> + 'd,
b: impl Peripheral<P = impl GpioPin> + 'd,
led: impl Peripheral<P = impl GpioPin> + 'd,
@ -134,8 +133,8 @@ impl<'d, T: Instance> Qdec<'d, T> {
SamplePeriod::_131ms => w.sampleper()._131ms(),
});
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
// Enable peripheral
r.enable.write(|w| w.enable().set_bit());
@ -272,7 +271,7 @@ pub(crate) mod sealed {
/// qdec peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_qdec {
@ -287,7 +286,7 @@ macro_rules! impl_qdec {
}
}
impl crate::qdec::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

16
embassy-nrf/src/qspi.rs
View file

@ -12,12 +12,12 @@ use embassy_hal_common::{into_ref, PeripheralRef};
use embedded_storage::nor_flash::{ErrorType, NorFlash, NorFlashError, NorFlashErrorKind, ReadNorFlash};
use crate::gpio::{self, Pin as GpioPin};
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
pub use crate::pac::qspi::ifconfig0::{
ADDRMODE_A as AddressMode, PPSIZE_A as WritePageSize, READOC_A as ReadOpcode, WRITEOC_A as WriteOpcode,
};
pub use crate::pac::qspi::ifconfig1::SPIMODE_A as SpiMode;
use crate::Peripheral;
use crate::{interrupt, Peripheral};
/// Deep power-down config.
pub struct DeepPowerDownConfig {
@ -120,7 +120,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let r = T::regs();
let s = T::state();
@ -143,7 +143,7 @@ impl<'d, T: Instance> Qspi<'d, T> {
/// Create a new QSPI driver.
pub fn new(
qspi: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
csn: impl Peripheral<P = impl GpioPin> + 'd,
io0: impl Peripheral<P = impl GpioPin> + 'd,
@ -207,8 +207,8 @@ impl<'d, T: Instance> Qspi<'d, T> {
w
});
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
// Enable it
r.enable.write(|w| w.enable().enabled());
@ -644,7 +644,7 @@ pub(crate) mod sealed {
/// QSPI peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_qspi {
@ -659,7 +659,7 @@ macro_rules! impl_qspi {
}
}
impl crate::qspi::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

15
embassy-nrf/src/rng.rs
View file

@ -8,12 +8,11 @@ use core::ptr;
use core::sync::atomic::{AtomicPtr, Ordering};
use core::task::Poll;
use embassy_cortex_m::interrupt::Interrupt;
use embassy_hal_common::drop::OnDrop;
use embassy_hal_common::{into_ref, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
use crate::interrupt::InterruptExt;
use crate::interrupt::typelevel::Interrupt;
use crate::{interrupt, Peripheral};
/// Interrupt handler.
@ -21,7 +20,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let s = T::state();
let r = T::regs();
@ -90,7 +89,7 @@ impl<'d, T: Instance> Rng<'d, T> {
/// The synchronous API is safe.
pub fn new(
rng: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
) -> Self {
into_ref!(rng);
@ -99,8 +98,8 @@ impl<'d, T: Instance> Rng<'d, T> {
this.stop();
this.disable_irq();
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
this
}
@ -256,7 +255,7 @@ pub(crate) mod sealed {
/// RNG peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_rng {
@ -271,7 +270,7 @@ macro_rules! impl_rng {
}
}
impl crate::rng::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

10
embassy-nrf/src/saadc.rs
View file

@ -6,7 +6,6 @@ use core::future::poll_fn;
use core::sync::atomic::{compiler_fence, Ordering};
use core::task::Poll;
use embassy_cortex_m::interrupt::{Interrupt, InterruptExt};
use embassy_hal_common::drop::OnDrop;
use embassy_hal_common::{impl_peripheral, into_ref, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
@ -18,6 +17,7 @@ use saadc::oversample::OVERSAMPLE_A;
use saadc::resolution::VAL_A;
use self::sealed::Input as _;
use crate::interrupt::InterruptExt;
use crate::ppi::{ConfigurableChannel, Event, Ppi, Task};
use crate::timer::{Frequency, Instance as TimerInstance, Timer};
use crate::{interrupt, pac, peripherals, Peripheral};
@ -33,7 +33,7 @@ pub struct InterruptHandler {
_private: (),
}
impl interrupt::Handler<interrupt::SAADC> for InterruptHandler {
impl interrupt::typelevel::Handler<interrupt::typelevel::SAADC> for InterruptHandler {
unsafe fn on_interrupt() {
let r = unsafe { &*SAADC::ptr() };
@ -144,7 +144,7 @@ impl<'d, const N: usize> Saadc<'d, N> {
/// Create a new SAADC driver.
pub fn new(
saadc: impl Peripheral<P = peripherals::SAADC> + 'd,
_irq: impl interrupt::Binding<interrupt::SAADC, InterruptHandler> + 'd,
_irq: impl interrupt::typelevel::Binding<interrupt::typelevel::SAADC, InterruptHandler> + 'd,
config: Config,
channel_configs: [ChannelConfig; N],
) -> Self {
@ -189,8 +189,8 @@ impl<'d, const N: usize> Saadc<'d, N> {
// Disable all events interrupts
r.intenclr.write(|w| unsafe { w.bits(0x003F_FFFF) });
unsafe { interrupt::SAADC::steal() }.unpend();
unsafe { interrupt::SAADC::steal() }.enable();
interrupt::SAADC.unpend();
unsafe { interrupt::SAADC.enable() };
Self { _p: saadc }
}

20
embassy-nrf/src/spim.rs
View file

@ -15,9 +15,9 @@ pub use pac::spim0::frequency::FREQUENCY_A as Frequency;
use crate::chip::FORCE_COPY_BUFFER_SIZE;
use crate::gpio::sealed::Pin as _;
use crate::gpio::{self, AnyPin, Pin as GpioPin, PselBits};
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
use crate::util::{slice_in_ram_or, slice_ptr_parts, slice_ptr_parts_mut};
use crate::{pac, Peripheral};
use crate::{interrupt, pac, Peripheral};
/// SPIM error
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
@ -63,7 +63,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let r = T::regs();
let s = T::state();
@ -84,7 +84,7 @@ impl<'d, T: Instance> Spim<'d, T> {
/// Create a new SPIM driver.
pub fn new(
spim: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
miso: impl Peripheral<P = impl GpioPin> + 'd,
mosi: impl Peripheral<P = impl GpioPin> + 'd,
@ -103,7 +103,7 @@ impl<'d, T: Instance> Spim<'d, T> {
/// Create a new SPIM driver, capable of TX only (MOSI only).
pub fn new_txonly(
spim: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
mosi: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -115,7 +115,7 @@ impl<'d, T: Instance> Spim<'d, T> {
/// Create a new SPIM driver, capable of RX only (MISO only).
pub fn new_rxonly(
spim: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
miso: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -207,8 +207,8 @@ impl<'d, T: Instance> Spim<'d, T> {
// Disable all events interrupts
r.intenclr.write(|w| unsafe { w.bits(0xFFFF_FFFF) });
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
Self { _p: spim }
}
@ -408,7 +408,7 @@ pub(crate) mod sealed {
/// SPIM peripheral instance
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_spim {
@ -423,7 +423,7 @@ macro_rules! impl_spim {
}
}
impl crate::spim::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

20
embassy-nrf/src/spis.rs
View file

@ -13,9 +13,9 @@ pub use embedded_hal_02::spi::{Mode, Phase, Polarity, MODE_0, MODE_1, MODE_2, MO
use crate::chip::FORCE_COPY_BUFFER_SIZE;
use crate::gpio::sealed::Pin as _;
use crate::gpio::{self, AnyPin, Pin as GpioPin};
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
use crate::util::{slice_in_ram_or, slice_ptr_parts, slice_ptr_parts_mut};
use crate::{pac, Peripheral};
use crate::{interrupt, pac, Peripheral};
/// SPIS error
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
@ -68,7 +68,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let r = T::regs();
let s = T::state();
@ -94,7 +94,7 @@ impl<'d, T: Instance> Spis<'d, T> {
/// Create a new SPIS driver.
pub fn new(
spis: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
cs: impl Peripheral<P = impl GpioPin> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
miso: impl Peripheral<P = impl GpioPin> + 'd,
@ -115,7 +115,7 @@ impl<'d, T: Instance> Spis<'d, T> {
/// Create a new SPIS driver, capable of TX only (MISO only).
pub fn new_txonly(
spis: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
cs: impl Peripheral<P = impl GpioPin> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
miso: impl Peripheral<P = impl GpioPin> + 'd,
@ -128,7 +128,7 @@ impl<'d, T: Instance> Spis<'d, T> {
/// Create a new SPIS driver, capable of RX only (MOSI only).
pub fn new_rxonly(
spis: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
cs: impl Peripheral<P = impl GpioPin> + 'd,
sck: impl Peripheral<P = impl GpioPin> + 'd,
mosi: impl Peripheral<P = impl GpioPin> + 'd,
@ -214,8 +214,8 @@ impl<'d, T: Instance> Spis<'d, T> {
// Disable all events interrupts.
r.intenclr.write(|w| unsafe { w.bits(0xFFFF_FFFF) });
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
Self { _p: spis }
}
@ -480,7 +480,7 @@ pub(crate) mod sealed {
/// SPIS peripheral instance
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_spis {
@ -495,7 +495,7 @@ macro_rules! impl_spis {
}
}
impl crate::spis::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

9
embassy-nrf/src/temp.rs
View file

@ -3,7 +3,6 @@
use core::future::poll_fn;
use core::task::Poll;
use embassy_cortex_m::interrupt::Interrupt;
use embassy_hal_common::drop::OnDrop;
use embassy_hal_common::{into_ref, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
@ -18,7 +17,7 @@ pub struct InterruptHandler {
_private: (),
}
impl interrupt::Handler<interrupt::TEMP> for InterruptHandler {
impl interrupt::typelevel::Handler<interrupt::typelevel::TEMP> for InterruptHandler {
unsafe fn on_interrupt() {
let r = unsafe { &*pac::TEMP::PTR };
r.intenclr.write(|w| w.datardy().clear());
@ -37,13 +36,13 @@ impl<'d> Temp<'d> {
/// Create a new temperature sensor driver.
pub fn new(
_peri: impl Peripheral<P = TEMP> + 'd,
_irq: impl interrupt::Binding<interrupt::TEMP, InterruptHandler> + 'd,
_irq: impl interrupt::typelevel::Binding<interrupt::typelevel::TEMP, InterruptHandler> + 'd,
) -> Self {
into_ref!(_peri);
// Enable interrupt that signals temperature values
unsafe { interrupt::TEMP::steal() }.unpend();
unsafe { interrupt::TEMP::steal() }.enable();
interrupt::TEMP.unpend();
unsafe { interrupt::TEMP.enable() };
Self { _peri }
}

8
embassy-nrf/src/time_driver.rs
View file

@ -7,7 +7,7 @@ use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
use embassy_sync::blocking_mutex::CriticalSectionMutex as Mutex;
use embassy_time::driver::{AlarmHandle, Driver};
use crate::interrupt::{Interrupt, InterruptExt};
use crate::interrupt::InterruptExt;
use crate::{interrupt, pac};
fn rtc() -> &'static pac::rtc0::RegisterBlock {
@ -142,9 +142,8 @@ impl RtcDriver {
// Wait for clear
while r.counter.read().bits() != 0 {}
let irq = unsafe { interrupt::RTC1::steal() };
irq.set_priority(irq_prio);
irq.enable();
interrupt::RTC1.set_priority(irq_prio);
unsafe { interrupt::RTC1.enable() };
}
fn on_interrupt(&self) {
@ -296,6 +295,7 @@ impl Driver for RtcDriver {
}
}
#[cfg(feature = "rt")]
#[interrupt]
fn RTC1() {
DRIVER.on_interrupt()

5
embassy-nrf/src/timer.rs
View file

@ -8,7 +8,6 @@
use embassy_hal_common::{into_ref, PeripheralRef};
use crate::interrupt::Interrupt;
use crate::ppi::{Event, Task};
use crate::{pac, Peripheral};
@ -29,7 +28,7 @@ pub(crate) mod sealed {
/// Basic Timer instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: crate::interrupt::typelevel::Interrupt;
}
/// Extended timer instance.
@ -44,7 +43,7 @@ macro_rules! impl_timer {
}
}
impl crate::timer::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
($type:ident, $pac_type:ident, $irq:ident) => {

16
embassy-nrf/src/twim.rs
View file

@ -16,9 +16,9 @@ use embassy_time::{Duration, Instant};
use crate::chip::{EASY_DMA_SIZE, FORCE_COPY_BUFFER_SIZE};
use crate::gpio::Pin as GpioPin;
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
use crate::util::{slice_in_ram, slice_in_ram_or};
use crate::{gpio, pac, Peripheral};
use crate::{gpio, interrupt, pac, Peripheral};
/// TWI frequency
#[derive(Clone, Copy)]
@ -98,7 +98,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let r = T::regs();
let s = T::state();
@ -123,7 +123,7 @@ impl<'d, T: Instance> Twim<'d, T> {
/// Create a new TWI driver.
pub fn new(
twim: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
sda: impl Peripheral<P = impl GpioPin> + 'd,
scl: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -174,8 +174,8 @@ impl<'d, T: Instance> Twim<'d, T> {
// Disable all events interrupts
r.intenclr.write(|w| unsafe { w.bits(0xFFFF_FFFF) });
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
Self { _p: twim }
}
@ -750,7 +750,7 @@ pub(crate) mod sealed {
/// TWIM peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_twim {
@ -765,7 +765,7 @@ macro_rules! impl_twim {
}
}
impl crate::twim::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

16
embassy-nrf/src/twis.rs
View file

@ -15,9 +15,9 @@ use embassy_time::{Duration, Instant};
use crate::chip::{EASY_DMA_SIZE, FORCE_COPY_BUFFER_SIZE};
use crate::gpio::Pin as GpioPin;
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
use crate::util::slice_in_ram_or;
use crate::{gpio, pac, Peripheral};
use crate::{gpio, interrupt, pac, Peripheral};
/// TWIS config.
#[non_exhaustive]
@ -114,7 +114,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let r = T::regs();
let s = T::state();
@ -143,7 +143,7 @@ impl<'d, T: Instance> Twis<'d, T> {
/// Create a new TWIS driver.
pub fn new(
twis: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
sda: impl Peripheral<P = impl GpioPin> + 'd,
scl: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -204,8 +204,8 @@ impl<'d, T: Instance> Twis<'d, T> {
// Generate suspend on read event
r.shorts.write(|w| w.read_suspend().enabled());
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
Self { _p: twis }
}
@ -778,7 +778,7 @@ pub(crate) mod sealed {
/// TWIS peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_twis {
@ -793,7 +793,7 @@ macro_rules! impl_twis {
}
}
impl crate::twis::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

129
embassy-nrf/src/uarte.rs
View file

@ -27,11 +27,11 @@ pub use pac::uarte0::{baudrate::BAUDRATE_A as Baudrate, config::PARITY_A as Pari
use crate::chip::{EASY_DMA_SIZE, FORCE_COPY_BUFFER_SIZE};
use crate::gpio::sealed::Pin as _;
use crate::gpio::{self, AnyPin, Pin as GpioPin, PselBits};
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
use crate::ppi::{AnyConfigurableChannel, ConfigurableChannel, Event, Ppi, Task};
use crate::timer::{Frequency, Instance as TimerInstance, Timer};
use crate::util::slice_in_ram_or;
use crate::{pac, Peripheral};
use crate::{interrupt, pac, Peripheral};
/// UARTE config.
#[derive(Clone)]
@ -68,7 +68,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let r = T::regs();
let s = T::state();
@ -108,7 +108,7 @@ impl<'d, T: Instance> Uarte<'d, T> {
/// Create a new UARTE without hardware flow control
pub fn new(
uarte: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
rxd: impl Peripheral<P = impl GpioPin> + 'd,
txd: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -120,7 +120,7 @@ impl<'d, T: Instance> Uarte<'d, T> {
/// Create a new UARTE with hardware flow control (RTS/CTS)
pub fn new_with_rtscts(
uarte: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
rxd: impl Peripheral<P = impl GpioPin> + 'd,
txd: impl Peripheral<P = impl GpioPin> + 'd,
cts: impl Peripheral<P = impl GpioPin> + 'd,
@ -168,8 +168,8 @@ impl<'d, T: Instance> Uarte<'d, T> {
}
r.psel.rts.write(|w| unsafe { w.bits(rts.psel_bits()) });
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
let hardware_flow_control = match (rts.is_some(), cts.is_some()) {
(false, false) => false,
@ -205,50 +205,7 @@ impl<'d, T: Instance> Uarte<'d, T> {
ppi_ch1: impl Peripheral<P = impl ConfigurableChannel + 'd> + 'd,
ppi_ch2: impl Peripheral<P = impl ConfigurableChannel + 'd> + 'd,
) -> (UarteTx<'d, T>, UarteRxWithIdle<'d, T, U>) {
let timer = Timer::new(timer);
into_ref!(ppi_ch1, ppi_ch2);
let r = T::regs();
// BAUDRATE register values are `baudrate * 2^32 / 16000000`
// source: https://devzone.nordicsemi.com/f/nordic-q-a/391/uart-baudrate-register-values
//
// We want to stop RX if line is idle for 2 bytes worth of time
// That is 20 bits (each byte is 1 start bit + 8 data bits + 1 stop bit)
// This gives us the amount of 16M ticks for 20 bits.
let baudrate = r.baudrate.read().baudrate().variant().unwrap();
let timeout = 0x8000_0000 / (baudrate as u32 / 40);
timer.set_frequency(Frequency::F16MHz);
timer.cc(0).write(timeout);
timer.cc(0).short_compare_clear();
timer.cc(0).short_compare_stop();
let mut ppi_ch1 = Ppi::new_one_to_two(
ppi_ch1.map_into(),
Event::from_reg(&r.events_rxdrdy),
timer.task_clear(),
timer.task_start(),
);
ppi_ch1.enable();
let mut ppi_ch2 = Ppi::new_one_to_one(
ppi_ch2.map_into(),
timer.cc(0).event_compare(),
Task::from_reg(&r.tasks_stoprx),
);
ppi_ch2.enable();
(
self.tx,
UarteRxWithIdle {
rx: self.rx,
timer,
ppi_ch1: ppi_ch1,
_ppi_ch2: ppi_ch2,
},
)
(self.tx, self.rx.with_idle(timer, ppi_ch1, ppi_ch2))
}
/// Return the endtx event for use with PPI
@ -313,7 +270,7 @@ impl<'d, T: Instance> UarteTx<'d, T> {
/// Create a new tx-only UARTE without hardware flow control
pub fn new(
uarte: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
txd: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
) -> Self {
@ -324,7 +281,7 @@ impl<'d, T: Instance> UarteTx<'d, T> {
/// Create a new tx-only UARTE with hardware flow control (RTS/CTS)
pub fn new_with_rtscts(
uarte: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
txd: impl Peripheral<P = impl GpioPin> + 'd,
cts: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -358,8 +315,8 @@ impl<'d, T: Instance> UarteTx<'d, T> {
let hardware_flow_control = cts.is_some();
configure(r, config, hardware_flow_control);
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
let s = T::state();
s.tx_rx_refcount.store(1, Ordering::Relaxed);
@ -509,7 +466,7 @@ impl<'d, T: Instance> UarteRx<'d, T> {
/// Create a new rx-only UARTE without hardware flow control
pub fn new(
uarte: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
rxd: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
) -> Self {
@ -520,7 +477,7 @@ impl<'d, T: Instance> UarteRx<'d, T> {
/// Create a new rx-only UARTE with hardware flow control (RTS/CTS)
pub fn new_with_rtscts(
uarte: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
rxd: impl Peripheral<P = impl GpioPin> + 'd,
rts: impl Peripheral<P = impl GpioPin> + 'd,
config: Config,
@ -551,8 +508,8 @@ impl<'d, T: Instance> UarteRx<'d, T> {
r.psel.txd.write(|w| w.connect().disconnected());
r.psel.cts.write(|w| w.connect().disconnected());
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
let hardware_flow_control = rts.is_some();
configure(r, config, hardware_flow_control);
@ -563,6 +520,56 @@ impl<'d, T: Instance> UarteRx<'d, T> {
Self { _p: uarte }
}
/// Upgrade to an instance that supports idle line detection.
pub fn with_idle<U: TimerInstance>(
self,
timer: impl Peripheral<P = U> + 'd,
ppi_ch1: impl Peripheral<P = impl ConfigurableChannel + 'd> + 'd,
ppi_ch2: impl Peripheral<P = impl ConfigurableChannel + 'd> + 'd,
) -> UarteRxWithIdle<'d, T, U> {
let timer = Timer::new(timer);
into_ref!(ppi_ch1, ppi_ch2);
let r = T::regs();
// BAUDRATE register values are `baudrate * 2^32 / 16000000`
// source: https://devzone.nordicsemi.com/f/nordic-q-a/391/uart-baudrate-register-values
//
// We want to stop RX if line is idle for 2 bytes worth of time
// That is 20 bits (each byte is 1 start bit + 8 data bits + 1 stop bit)
// This gives us the amount of 16M ticks for 20 bits.
let baudrate = r.baudrate.read().baudrate().variant().unwrap();
let timeout = 0x8000_0000 / (baudrate as u32 / 40);
timer.set_frequency(Frequency::F16MHz);
timer.cc(0).write(timeout);
timer.cc(0).short_compare_clear();
timer.cc(0).short_compare_stop();
let mut ppi_ch1 = Ppi::new_one_to_two(
ppi_ch1.map_into(),
Event::from_reg(&r.events_rxdrdy),
timer.task_clear(),
timer.task_start(),
);
ppi_ch1.enable();
let mut ppi_ch2 = Ppi::new_one_to_one(
ppi_ch2.map_into(),
timer.cc(0).event_compare(),
Task::from_reg(&r.tasks_stoprx),
);
ppi_ch2.enable();
UarteRxWithIdle {
rx: self,
timer,
ppi_ch1: ppi_ch1,
_ppi_ch2: ppi_ch2,
}
}
/// Read bytes until the buffer is filled.
pub async fn read(&mut self, buffer: &mut [u8]) -> Result<(), Error> {
if buffer.len() == 0 {
@ -889,7 +896,7 @@ pub(crate) mod sealed {
/// UARTE peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_uarte {
@ -908,7 +915,7 @@ macro_rules! impl_uarte {
}
}
impl crate::uarte::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

16
embassy-nrf/src/usb/mod.rs
View file

@ -18,9 +18,9 @@ use embassy_usb_driver::{Direction, EndpointAddress, EndpointError, EndpointInfo
use pac::usbd::RegisterBlock;
use self::vbus_detect::VbusDetect;
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::interrupt::typelevel::Interrupt;
use crate::util::slice_in_ram;
use crate::{pac, Peripheral};
use crate::{interrupt, pac, Peripheral};
const NEW_AW: AtomicWaker = AtomicWaker::new();
static BUS_WAKER: AtomicWaker = NEW_AW;
@ -34,7 +34,7 @@ pub struct InterruptHandler<T: Instance> {
_phantom: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let regs = T::regs();
@ -98,13 +98,13 @@ impl<'d, T: Instance, V: VbusDetect> Driver<'d, T, V> {
/// Create a new USB driver.
pub fn new(
usb: impl Peripheral<P = T> + 'd,
_irq: impl interrupt::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
_irq: impl interrupt::typelevel::Binding<T::Interrupt, InterruptHandler<T>> + 'd,
vbus_detect: V,
) -> Self {
into_ref!(usb);
unsafe { T::Interrupt::steal() }.unpend();
unsafe { T::Interrupt::steal() }.enable();
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
Self {
_p: usb,
@ -804,7 +804,7 @@ pub(crate) mod sealed {
/// USB peripheral instance.
pub trait Instance: Peripheral<P = Self> + sealed::Instance + 'static + Send {
/// Interrupt for this peripheral.
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
macro_rules! impl_usb {
@ -815,7 +815,7 @@ macro_rules! impl_usb {
}
}
impl crate::usb::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
}
};
}

16
embassy-nrf/src/usb/vbus_detect.rs
View file

@ -7,8 +7,8 @@ use core::task::Poll;
use embassy_sync::waitqueue::AtomicWaker;
use super::BUS_WAKER;
use crate::interrupt::{self, Interrupt, InterruptExt};
use crate::pac;
use crate::interrupt::typelevel::Interrupt;
use crate::{interrupt, pac};
/// Trait for detecting USB VBUS power.
///
@ -29,9 +29,9 @@ pub trait VbusDetect {
}
#[cfg(not(feature = "_nrf5340"))]
type UsbRegIrq = interrupt::POWER_CLOCK;
type UsbRegIrq = interrupt::typelevel::POWER_CLOCK;
#[cfg(feature = "_nrf5340")]
type UsbRegIrq = interrupt::USBREGULATOR;
type UsbRegIrq = interrupt::typelevel::USBREGULATOR;
#[cfg(not(feature = "_nrf5340"))]
type UsbRegPeri = pac::POWER;
@ -43,7 +43,7 @@ pub struct InterruptHandler {
_private: (),
}
impl interrupt::Handler<UsbRegIrq> for InterruptHandler {
impl interrupt::typelevel::Handler<UsbRegIrq> for InterruptHandler {
unsafe fn on_interrupt() {
let regs = unsafe { &*UsbRegPeri::ptr() };
@ -77,11 +77,11 @@ static POWER_WAKER: AtomicWaker = AtomicWaker::new();
impl HardwareVbusDetect {
/// Create a new `VbusDetectNative`.
pub fn new(_irq: impl interrupt::Binding<UsbRegIrq, InterruptHandler> + 'static) -> Self {
pub fn new(_irq: impl interrupt::typelevel::Binding<UsbRegIrq, InterruptHandler> + 'static) -> Self {
let regs = unsafe { &*UsbRegPeri::ptr() };
unsafe { UsbRegIrq::steal() }.unpend();
unsafe { UsbRegIrq::steal() }.enable();
UsbRegIrq::unpend();
unsafe { UsbRegIrq::enable() };
regs.intenset
.write(|w| w.usbdetected().set().usbremoved().set().usbpwrrdy().set());

20
embassy-rp/Cargo.toml
View file

@ -13,7 +13,8 @@ flavors = [
]
[features]
default = [ "rp-pac/rt" ]
default = [ "rt" ]
rt = [ "rp-pac/rt" ]
defmt = ["dep:defmt", "embassy-usb-driver?/defmt", "embassy-hal-common/defmt"]
@ -41,8 +42,13 @@ boot2-ram-memcpy = []
boot2-w25q080 = []
boot2-w25x10cl = []
# Indicate code is running from RAM.
# Set this if all code is in RAM, and the cores never access memory-mapped flash memory through XIP.
# This allows the flash driver to not force pausing execution on both cores when doing flash operations.
run-from-ram = []
# Enable nightly-only features
nightly = ["embassy-executor/nightly", "embedded-hal-1", "embedded-hal-async", "embassy-embedded-hal/nightly", "dep:embassy-usb-driver", "dep:embedded-io"]
nightly = ["embedded-hal-1", "embedded-hal-async", "embassy-embedded-hal/nightly", "dep:embassy-usb-driver", "dep:embedded-io"]
# Implement embedded-hal 1.0 alpha traits.
# Implement embedded-hal-async traits if `nightly` is set as well.
@ -50,11 +56,9 @@ unstable-traits = ["embedded-hal-1", "embedded-hal-nb"]
[dependencies]
embassy-sync = { version = "0.2.0", path = "../embassy-sync" }
embassy-executor = { version = "0.2.0", path = "../embassy-executor" }
embassy-time = { version = "0.1.0", path = "../embassy-time", features = [ "tick-hz-1_000_000" ] }
embassy-futures = { version = "0.1.0", path = "../embassy-futures" }
embassy-cortex-m = { version = "0.1.0", path = "../embassy-cortex-m", features = ["prio-bits-2"]}
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common" }
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common", features = ["cortex-m", "prio-bits-2"] }
embassy-embedded-hal = {version = "0.1.0", path = "../embassy-embedded-hal" }
embassy-usb-driver = {version = "0.1.0", path = "../embassy-usb-driver", optional = true }
atomic-polyfill = "1.0.1"
@ -72,7 +76,7 @@ embedded-storage = { version = "0.3" }
rand_core = "0.6.4"
fixed = "1.23.1"
rp-pac = { version = "4" }
rp-pac = { version = "5" }
embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["unproven"] }
embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.10", optional = true}
@ -85,5 +89,5 @@ pio = {version= "0.2.1" }
rp2040-boot2 = "0.3"
[dev-dependencies]
embassy-executor = { version = "0.2.0", path = "../embassy-executor", features = ["arch-std", "executor-thread"] }
static_cell = "1.0"
embassy-executor = { version = "0.2.0", path = "../embassy-executor", features = ["nightly", "arch-std", "executor-thread"] }
static_cell = "1.1"

136
embassy-rp/src/adc.rs
View file

@ -3,14 +3,14 @@ use core::marker::PhantomData;
use core::sync::atomic::{compiler_fence, Ordering};
use core::task::Poll;
use embassy_cortex_m::interrupt::{Binding, Interrupt};
use embassy_sync::waitqueue::AtomicWaker;
use embedded_hal_02::adc::{Channel, OneShot};
use crate::gpio::Pin;
use crate::interrupt::{self, InterruptExt, ADC_IRQ_FIFO};
use crate::interrupt::typelevel::Binding;
use crate::interrupt::InterruptExt;
use crate::peripherals::ADC;
use crate::{pac, peripherals, Peripheral};
use crate::{interrupt, pac, peripherals, Peripheral};
static WAKER: AtomicWaker = AtomicWaker::new();
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
@ -47,105 +47,91 @@ impl<'d> Adc<'d> {
pub fn new(
_inner: impl Peripheral<P = ADC> + 'd,
_irq: impl Binding<ADC_IRQ_FIFO, InterruptHandler>,
_irq: impl Binding<interrupt::typelevel::ADC_IRQ_FIFO, InterruptHandler>,
_config: Config,
) -> Self {
unsafe {
let reset = Self::reset();
crate::reset::reset(reset);
crate::reset::unreset_wait(reset);
let r = Self::regs();
// Enable ADC
r.cs().write(|w| w.set_en(true));
// Wait for ADC ready
while !r.cs().read().ready() {}
}
let reset = Self::reset();
crate::reset::reset(reset);
crate::reset::unreset_wait(reset);
let r = Self::regs();
// Enable ADC
r.cs().write(|w| w.set_en(true));
// Wait for ADC ready
while !r.cs().read().ready() {}
// Setup IRQ
unsafe {
ADC_IRQ_FIFO::steal().unpend();
ADC_IRQ_FIFO::steal().enable();
};
interrupt::ADC_IRQ_FIFO.unpend();
unsafe { interrupt::ADC_IRQ_FIFO.enable() };
Self { phantom: PhantomData }
}
async fn wait_for_ready() {
let r = Self::regs();
unsafe {
r.inte().write(|w| w.set_fifo(true));
compiler_fence(Ordering::SeqCst);
poll_fn(|cx| {
WAKER.register(cx.waker());
if r.cs().read().ready() {
return Poll::Ready(());
}
Poll::Pending
})
.await;
}
r.inte().write(|w| w.set_fifo(true));
compiler_fence(Ordering::SeqCst);
poll_fn(|cx| {
WAKER.register(cx.waker());
if r.cs().read().ready() {
return Poll::Ready(());
}
Poll::Pending
})
.await;
}
pub async fn read<PIN: Channel<Adc<'d>, ID = u8> + Pin>(&mut self, pin: &mut PIN) -> u16 {
let r = Self::regs();
unsafe {
// disable pull-down and pull-up resistors
// pull-down resistors are enabled by default
pin.pad_ctrl().modify(|w| {
w.set_ie(true);
let (pu, pd) = (false, false);
w.set_pue(pu);
w.set_pde(pd);
});
r.cs().modify(|w| {
w.set_ainsel(PIN::channel());
w.set_start_once(true)
});
Self::wait_for_ready().await;
r.result().read().result().into()
}
// disable pull-down and pull-up resistors
// pull-down resistors are enabled by default
pin.pad_ctrl().modify(|w| {
w.set_ie(true);
let (pu, pd) = (false, false);
w.set_pue(pu);
w.set_pde(pd);
});
r.cs().modify(|w| {
w.set_ainsel(PIN::channel());
w.set_start_once(true)
});
Self::wait_for_ready().await;
r.result().read().result().into()
}
pub async fn read_temperature(&mut self) -> u16 {
let r = Self::regs();
unsafe {
r.cs().modify(|w| w.set_ts_en(true));
if !r.cs().read().ready() {
Self::wait_for_ready().await;
}
r.cs().modify(|w| {
w.set_ainsel(4);
w.set_start_once(true)
});
r.cs().modify(|w| w.set_ts_en(true));
if !r.cs().read().ready() {
Self::wait_for_ready().await;
r.result().read().result().into()
}
r.cs().modify(|w| {
w.set_ainsel(4);
w.set_start_once(true)
});
Self::wait_for_ready().await;
r.result().read().result().into()
}
pub fn blocking_read<PIN: Channel<Adc<'d>, ID = u8>>(&mut self, _pin: &mut PIN) -> u16 {
let r = Self::regs();
unsafe {
r.cs().modify(|w| {
w.set_ainsel(PIN::channel());
w.set_start_once(true)
});
while !r.cs().read().ready() {}
r.result().read().result().into()
}
r.cs().modify(|w| {
w.set_ainsel(PIN::channel());
w.set_start_once(true)
});
while !r.cs().read().ready() {}
r.result().read().result().into()
}
pub fn blocking_read_temperature(&mut self) -> u16 {
let r = Self::regs();
unsafe {
r.cs().modify(|w| w.set_ts_en(true));
while !r.cs().read().ready() {}
r.cs().modify(|w| {
w.set_ainsel(4);
w.set_start_once(true)
});
while !r.cs().read().ready() {}
r.result().read().result().into()
}
r.cs().modify(|w| w.set_ts_en(true));
while !r.cs().read().ready() {}
r.cs().modify(|w| {
w.set_ainsel(4);
w.set_start_once(true)
});
while !r.cs().read().ready() {}
r.result().read().result().into()
}
}
@ -164,7 +150,7 @@ pub struct InterruptHandler {
_empty: (),
}
impl interrupt::Handler<ADC_IRQ_FIFO> for InterruptHandler {
impl interrupt::typelevel::Handler<interrupt::typelevel::ADC_IRQ_FIFO> for InterruptHandler {
unsafe fn on_interrupt() {
let r = Adc::regs();
r.inte().write(|w| w.set_fifo(false));

82
embassy-rp/src/clocks.rs
View file

@ -542,7 +542,7 @@ pub(crate) unsafe fn init(config: ClockConfig) {
reset::unreset_wait(peris);
}
unsafe fn configure_rosc(config: RoscConfig) -> u32 {
fn configure_rosc(config: RoscConfig) -> u32 {
let p = pac::ROSC;
p.freqa().write(|w| {
@ -620,7 +620,7 @@ pub fn clk_rtc_freq() -> u16 {
CLOCKS.rtc.load(Ordering::Relaxed)
}
unsafe fn start_xosc(crystal_hz: u32) {
fn start_xosc(crystal_hz: u32) {
pac::XOSC
.ctrl()
.write(|w| w.set_freq_range(pac::xosc::vals::CtrlFreqRange::_1_15MHZ));
@ -635,7 +635,7 @@ unsafe fn start_xosc(crystal_hz: u32) {
}
#[inline(always)]
unsafe fn configure_pll(p: pac::pll::Pll, input_freq: u32, config: PllConfig) -> u32 {
fn configure_pll(p: pac::pll::Pll, input_freq: u32, config: PllConfig) -> u32 {
let ref_freq = input_freq / config.refdiv as u32;
assert!(config.fbdiv >= 16 && config.fbdiv <= 320);
assert!(config.post_div1 >= 1 && config.post_div1 <= 7);
@ -700,9 +700,7 @@ impl<'d, T: Pin> Gpin<'d, T> {
pub fn new<P: GpinPin>(gpin: impl Peripheral<P = P> + 'd) -> Gpin<'d, P> {
into_ref!(gpin);
unsafe {
gpin.io().ctrl().write(|w| w.set_funcsel(0x08));
}
gpin.io().ctrl().write(|w| w.set_funcsel(0x08));
Gpin {
gpin: gpin.map_into(),
@ -717,12 +715,10 @@ impl<'d, T: Pin> Gpin<'d, T> {
impl<'d, T: Pin> Drop for Gpin<'d, T> {
fn drop(&mut self) {
unsafe {
self.gpin
.io()
.ctrl()
.write(|w| w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::NULL.0));
}
self.gpin
.io()
.ctrl()
.write(|w| w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::NULL.0));
}
}
@ -768,53 +764,43 @@ impl<'d, T: GpoutPin> Gpout<'d, T> {
pub fn new(gpout: impl Peripheral<P = T> + 'd) -> Self {
into_ref!(gpout);
unsafe {
gpout.io().ctrl().write(|w| w.set_funcsel(0x08));
}
gpout.io().ctrl().write(|w| w.set_funcsel(0x08));
Self { gpout }
}
pub fn set_div(&self, int: u32, frac: u8) {
unsafe {
let c = pac::CLOCKS;
c.clk_gpout_div(self.gpout.number()).write(|w| {
w.set_int(int);
w.set_frac(frac);
});
}
let c = pac::CLOCKS;
c.clk_gpout_div(self.gpout.number()).write(|w| {
w.set_int(int);
w.set_frac(frac);
});
}
pub fn set_src(&self, src: GpoutSrc) {
unsafe {
let c = pac::CLOCKS;
c.clk_gpout_ctrl(self.gpout.number()).modify(|w| {
w.set_auxsrc(ClkGpoutCtrlAuxsrc(src as _));
});
}
let c = pac::CLOCKS;
c.clk_gpout_ctrl(self.gpout.number()).modify(|w| {
w.set_auxsrc(ClkGpoutCtrlAuxsrc(src as _));
});
}
pub fn enable(&self) {
unsafe {
let c = pac::CLOCKS;
c.clk_gpout_ctrl(self.gpout.number()).modify(|w| {
w.set_enable(true);
});
}
let c = pac::CLOCKS;
c.clk_gpout_ctrl(self.gpout.number()).modify(|w| {
w.set_enable(true);
});
}
pub fn disable(&self) {
unsafe {
let c = pac::CLOCKS;
c.clk_gpout_ctrl(self.gpout.number()).modify(|w| {
w.set_enable(false);
});
}
let c = pac::CLOCKS;
c.clk_gpout_ctrl(self.gpout.number()).modify(|w| {
w.set_enable(false);
});
}
pub fn get_freq(&self) -> u32 {
let c = pac::CLOCKS;
let src = unsafe { c.clk_gpout_ctrl(self.gpout.number()).read().auxsrc() };
let src = c.clk_gpout_ctrl(self.gpout.number()).read().auxsrc();
let base = match src {
ClkGpoutCtrlAuxsrc::CLKSRC_PLL_SYS => pll_sys_freq(),
@ -831,7 +817,7 @@ impl<'d, T: GpoutPin> Gpout<'d, T> {
_ => unreachable!(),
};
let div = unsafe { c.clk_gpout_div(self.gpout.number()).read() };
let div = c.clk_gpout_div(self.gpout.number()).read();
let int = if div.int() == 0 { 65536 } else { div.int() } as u64;
let frac = div.frac() as u64;
@ -842,12 +828,10 @@ impl<'d, T: GpoutPin> Gpout<'d, T> {
impl<'d, T: GpoutPin> Drop for Gpout<'d, T> {
fn drop(&mut self) {
self.disable();
unsafe {
self.gpout
.io()
.ctrl()
.write(|w| w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::NULL.0));
}
self.gpout
.io()
.ctrl()
.write(|w| w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::NULL.0));
}
}
@ -864,7 +848,7 @@ impl RoscRng {
let mut acc = 0;
for _ in 0..u8::BITS {
acc <<= 1;
acc |= unsafe { random_reg.read().randombit() as u8 };
acc |= random_reg.read().randombit() as u8;
}
acc
}

19
embassy-rp/src/critical_section_impl.rs
View file

@ -103,14 +103,11 @@ where
/// Try to claim the spinlock. Will return `Some(Self)` if the lock is obtained, and `None` if the lock is
/// already in use somewhere else.
pub fn try_claim() -> Option<Self> {
// Safety: We're only reading from this register
unsafe {
let lock = pac::SIO.spinlock(N).read();
if lock > 0 {
Some(Self(core::marker::PhantomData))
} else {
None
}
let lock = pac::SIO.spinlock(N).read();
if lock > 0 {
Some(Self(core::marker::PhantomData))
} else {
None
}
}
@ -120,10 +117,8 @@ where
///
/// Only call this function if you hold the spin-lock.
pub unsafe fn release() {
unsafe {
// Write (any value): release the lock
pac::SIO.spinlock(N).write_value(1);
}
// Write (any value): release the lock
pac::SIO.spinlock(N).write_value(1);
}
}

63
embassy-rp/src/dma.rs
View file

@ -4,16 +4,17 @@ use core::pin::Pin;
use core::sync::atomic::{compiler_fence, Ordering};
use core::task::{Context, Poll};
use embassy_cortex_m::interrupt::{Interrupt, InterruptExt};
use embassy_hal_common::{impl_peripheral, into_ref, Peripheral, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
use pac::dma::vals::DataSize;
use crate::interrupt::InterruptExt;
use crate::pac::dma::vals;
use crate::{interrupt, pac, peripherals};
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn DMA_IRQ_0() {
fn DMA_IRQ_0() {
let ints0 = pac::DMA.ints0().read().ints0();
for channel in 0..CHANNEL_COUNT {
let ctrl_trig = pac::DMA.ch(channel).ctrl_trig().read();
@ -29,13 +30,12 @@ unsafe fn DMA_IRQ_0() {
}
pub(crate) unsafe fn init() {
let irq = interrupt::DMA_IRQ_0::steal();
irq.disable();
irq.set_priority(interrupt::Priority::P3);
interrupt::DMA_IRQ_0.disable();
interrupt::DMA_IRQ_0.set_priority(interrupt::Priority::P3);
pac::DMA.inte0().write(|w| w.set_inte0(0xFFFF));
irq.enable();
interrupt::DMA_IRQ_0.enable();
}
pub unsafe fn read<'a, C: Channel, W: Word>(
@ -76,16 +76,17 @@ pub unsafe fn write<'a, C: Channel, W: Word>(
)
}
static DUMMY: u32 = 0;
pub unsafe fn write_repeated<'a, C: Channel, W: Word>(
ch: impl Peripheral<P = C> + 'a,
to: *mut W,
len: usize,
dreq: u8,
) -> Transfer<'a, C> {
let dummy: u32 = 0;
copy_inner(
ch,
&dummy as *const u32,
&DUMMY as *const u32,
to as *mut u32,
len,
W::size(),
@ -127,28 +128,26 @@ fn copy_inner<'a, C: Channel>(
) -> Transfer<'a, C> {
into_ref!(ch);
unsafe {
let p = ch.regs();
let p = ch.regs();
p.read_addr().write_value(from as u32);
p.write_addr().write_value(to as u32);
p.trans_count().write_value(len as u32);
p.read_addr().write_value(from as u32);
p.write_addr().write_value(to as u32);
p.trans_count().write_value(len as u32);
compiler_fence(Ordering::SeqCst);
compiler_fence(Ordering::SeqCst);
p.ctrl_trig().write(|w| {
// TODO: Add all DREQ options to pac vals::TreqSel, and use
// `set_treq:sel`
w.0 = ((dreq as u32) & 0x3f) << 15usize;
w.set_data_size(data_size);
w.set_incr_read(incr_read);
w.set_incr_write(incr_write);
w.set_chain_to(ch.number());
w.set_en(true);
});
p.ctrl_trig().write(|w| {
// TODO: Add all DREQ options to pac vals::TreqSel, and use
// `set_treq:sel`
w.0 = ((dreq as u32) & 0x3f) << 15usize;
w.set_data_size(data_size);
w.set_incr_read(incr_read);
w.set_incr_write(incr_write);
w.set_chain_to(ch.number());
w.set_en(true);
});
compiler_fence(Ordering::SeqCst);
}
compiler_fence(Ordering::SeqCst);
Transfer::new(ch)
}
@ -168,12 +167,10 @@ impl<'a, C: Channel> Transfer<'a, C> {
impl<'a, C: Channel> Drop for Transfer<'a, C> {
fn drop(&mut self) {
let p = self.channel.regs();
unsafe {
pac::DMA
.chan_abort()
.modify(|m| m.set_chan_abort(1 << self.channel.number()));
while p.ctrl_trig().read().busy() {}
}
pac::DMA
.chan_abort()
.modify(|m| m.set_chan_abort(1 << self.channel.number()));
while p.ctrl_trig().read().busy() {}
}
}
@ -185,7 +182,7 @@ impl<'a, C: Channel> Future for Transfer<'a, C> {
// calls to wake will deregister the waker.
CHANNEL_WAKERS[self.channel.number() as usize].register(cx.waker());
if unsafe { self.channel.regs().ctrl_trig().read().busy() } {
if self.channel.regs().ctrl_trig().read().busy() {
Poll::Pending
} else {
Poll::Ready(())

84
embassy-rp/src/flash.rs
View file

@ -9,7 +9,11 @@ use embedded_storage::nor_flash::{
use crate::pac;
use crate::peripherals::FLASH;
pub const FLASH_BASE: usize = 0x10000000;
pub const FLASH_BASE: *const u32 = 0x10000000 as _;
// If running from RAM, we might have no boot2. Use bootrom `flash_enter_cmd_xip` instead.
// TODO: when run-from-ram is set, completely skip the "pause cores and jumpp to RAM" dance.
pub const USE_BOOT2: bool = !cfg!(feature = "run-from-ram");
// **NOTE**:
//
@ -63,8 +67,8 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
pub fn read(&mut self, offset: u32, bytes: &mut [u8]) -> Result<(), Error> {
trace!(
"Reading from 0x{:x} to 0x{:x}",
FLASH_BASE + offset as usize,
FLASH_BASE + offset as usize + bytes.len()
FLASH_BASE as u32 + offset,
FLASH_BASE as u32 + offset + bytes.len() as u32
);
check_read(self, offset, bytes.len())?;
@ -89,7 +93,7 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
let len = to - from;
unsafe { self.in_ram(|| ram_helpers::flash_range_erase(from, len, true))? };
unsafe { self.in_ram(|| ram_helpers::flash_range_erase(from, len))? };
Ok(())
}
@ -114,7 +118,7 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
let unaligned_offset = offset as usize - start;
unsafe { self.in_ram(|| ram_helpers::flash_range_program(unaligned_offset as u32, &pad_buf, true))? }
unsafe { self.in_ram(|| ram_helpers::flash_range_program(unaligned_offset as u32, &pad_buf))? }
}
let remaining_len = bytes.len() - start_padding;
@ -132,12 +136,12 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
if bytes.as_ptr() as usize >= 0x2000_0000 {
let aligned_data = &bytes[start_padding..end_padding];
unsafe { self.in_ram(|| ram_helpers::flash_range_program(aligned_offset as u32, aligned_data, true))? }
unsafe { self.in_ram(|| ram_helpers::flash_range_program(aligned_offset as u32, aligned_data))? }
} else {
for chunk in bytes[start_padding..end_padding].chunks_exact(PAGE_SIZE) {
let mut ram_buf = [0xFF_u8; PAGE_SIZE];
ram_buf.copy_from_slice(chunk);
unsafe { self.in_ram(|| ram_helpers::flash_range_program(aligned_offset as u32, &ram_buf, true))? }
unsafe { self.in_ram(|| ram_helpers::flash_range_program(aligned_offset as u32, &ram_buf))? }
aligned_offset += PAGE_SIZE;
}
}
@ -152,7 +156,7 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
let unaligned_offset = end_offset - (PAGE_SIZE - rem_offset);
unsafe { self.in_ram(|| ram_helpers::flash_range_program(unaligned_offset as u32, &pad_buf, true))? }
unsafe { self.in_ram(|| ram_helpers::flash_range_program(unaligned_offset as u32, &pad_buf))? }
}
Ok(())
@ -163,7 +167,7 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
/// - DMA must not access flash memory
unsafe fn in_ram(&mut self, operation: impl FnOnce()) -> Result<(), Error> {
// Make sure we're running on CORE0
let core_id: u32 = unsafe { pac::SIO.cpuid().read() };
let core_id: u32 = pac::SIO.cpuid().read();
if core_id != 0 {
return Err(Error::InvalidCore);
}
@ -190,7 +194,7 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
/// Read SPI flash unique ID
pub fn unique_id(&mut self, uid: &mut [u8]) -> Result<(), Error> {
unsafe { self.in_ram(|| ram_helpers::flash_unique_id(uid, true))? };
unsafe { self.in_ram(|| ram_helpers::flash_unique_id(uid))? };
Ok(())
}
@ -199,7 +203,7 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> Flash<'d, T, FLASH_SIZE> {
let mut jedec = None;
unsafe {
self.in_ram(|| {
jedec.replace(ram_helpers::flash_jedec_id(true));
jedec.replace(ram_helpers::flash_jedec_id());
})?;
};
Ok(jedec.unwrap())
@ -242,6 +246,7 @@ impl<'d, T: Instance, const FLASH_SIZE: usize> NorFlash for Flash<'d, T, FLASH_S
mod ram_helpers {
use core::marker::PhantomData;
use super::*;
use crate::rom_data;
#[repr(C)]
@ -306,7 +311,7 @@ mod ram_helpers {
///
/// `addr` and `len` must be multiples of 4096
///
/// If `use_boot2` is `true`, a copy of the 2nd stage boot loader
/// If `USE_BOOT2` is `true`, a copy of the 2nd stage boot loader
/// is used to re-initialize the XIP engine after flashing.
///
/// # Safety
@ -318,10 +323,10 @@ mod ram_helpers {
/// - DMA must not access flash memory
///
/// `addr` and `len` parameters must be valid and are not checked.
pub unsafe fn flash_range_erase(addr: u32, len: u32, use_boot2: bool) {
pub unsafe fn flash_range_erase(addr: u32, len: u32) {
let mut boot2 = [0u32; 256 / 4];
let ptrs = if use_boot2 {
rom_data::memcpy44(&mut boot2 as *mut _, super::FLASH_BASE as *const _, 256);
let ptrs = if USE_BOOT2 {
rom_data::memcpy44(&mut boot2 as *mut _, FLASH_BASE, 256);
flash_function_pointers_with_boot2(true, false, &boot2)
} else {
flash_function_pointers(true, false)
@ -336,7 +341,7 @@ mod ram_helpers {
///
/// `addr` and `data.len()` must be multiples of 4096
///
/// If `use_boot2` is `true`, a copy of the 2nd stage boot loader
/// If `USE_BOOT2` is `true`, a copy of the 2nd stage boot loader
/// is used to re-initialize the XIP engine after flashing.
///
/// # Safety
@ -348,10 +353,10 @@ mod ram_helpers {
/// - DMA must not access flash memory
///
/// `addr` and `len` parameters must be valid and are not checked.
pub unsafe fn flash_range_erase_and_program(addr: u32, data: &[u8], use_boot2: bool) {
pub unsafe fn flash_range_erase_and_program(addr: u32, data: &[u8]) {
let mut boot2 = [0u32; 256 / 4];
let ptrs = if use_boot2 {
rom_data::memcpy44(&mut boot2 as *mut _, super::FLASH_BASE as *const _, 256);
let ptrs = if USE_BOOT2 {
rom_data::memcpy44(&mut boot2 as *mut _, FLASH_BASE, 256);
flash_function_pointers_with_boot2(true, true, &boot2)
} else {
flash_function_pointers(true, true)
@ -371,7 +376,7 @@ mod ram_helpers {
///
/// `addr` and `data.len()` must be multiples of 256
///
/// If `use_boot2` is `true`, a copy of the 2nd stage boot loader
/// If `USE_BOOT2` is `true`, a copy of the 2nd stage boot loader
/// is used to re-initialize the XIP engine after flashing.
///
/// # Safety
@ -383,10 +388,10 @@ mod ram_helpers {
/// - DMA must not access flash memory
///
/// `addr` and `len` parameters must be valid and are not checked.
pub unsafe fn flash_range_program(addr: u32, data: &[u8], use_boot2: bool) {
pub unsafe fn flash_range_program(addr: u32, data: &[u8]) {
let mut boot2 = [0u32; 256 / 4];
let ptrs = if use_boot2 {
rom_data::memcpy44(&mut boot2 as *mut _, super::FLASH_BASE as *const _, 256);
let ptrs = if USE_BOOT2 {
rom_data::memcpy44(&mut boot2 as *mut _, FLASH_BASE, 256);
flash_function_pointers_with_boot2(false, true, &boot2)
} else {
flash_function_pointers(false, true)
@ -508,10 +513,10 @@ mod ram_helpers {
/// - DMA must not access flash memory
///
/// Credit: taken from `rp2040-flash` (also licensed Apache+MIT)
pub unsafe fn flash_unique_id(out: &mut [u8], use_boot2: bool) {
pub unsafe fn flash_unique_id(out: &mut [u8]) {
let mut boot2 = [0u32; 256 / 4];
let ptrs = if use_boot2 {
rom_data::memcpy44(&mut boot2 as *mut _, 0x10000000 as *const _, 256);
let ptrs = if USE_BOOT2 {
rom_data::memcpy44(&mut boot2 as *mut _, FLASH_BASE, 256);
flash_function_pointers_with_boot2(false, false, &boot2)
} else {
flash_function_pointers(false, false)
@ -536,10 +541,10 @@ mod ram_helpers {
/// - DMA must not access flash memory
///
/// Credit: taken from `rp2040-flash` (also licensed Apache+MIT)
pub unsafe fn flash_jedec_id(use_boot2: bool) -> u32 {
pub unsafe fn flash_jedec_id() -> u32 {
let mut boot2 = [0u32; 256 / 4];
let ptrs = if use_boot2 {
rom_data::memcpy44(&mut boot2 as *mut _, 0x10000000 as *const _, 256);
let ptrs = if USE_BOOT2 {
rom_data::memcpy44(&mut boot2 as *mut _, FLASH_BASE, 256);
flash_function_pointers_with_boot2(false, false, &boot2)
} else {
flash_function_pointers(false, false)
@ -586,7 +591,6 @@ mod ram_helpers {
"ldr r4, [r5, #4]",
"blx r4", // flash_exit_xip()
"mov r7, r10", // cmd
"movs r4, #0x18",
"lsls r4, r4, #24", // 0x18000000, SSI, RP2040 datasheet 4.10.13
@ -603,8 +607,9 @@ mod ram_helpers {
"str r1, [r4, #0]",
// Write ctrlr1 with len-1
"ldr r0, [r7, #8]", // dummy_len
"ldr r1, [r7, #16]", // data_len
"mov r3, r10", // cmd
"ldr r0, [r3, #8]", // dummy_len
"ldr r1, [r3, #16]", // data_len
"add r0, r1",
"subs r0, #1",
"str r0, [r4, #0x04]", // CTRLR1
@ -616,8 +621,8 @@ mod ram_helpers {
// Write cmd/addr phase to DR
"mov r2, r4",
"adds r2, 0x60", // &DR
"ldr r0, [r7, #0]", // cmd_addr
"ldr r1, [r7, #4]", // cmd_addr_len
"ldr r0, [r3, #0]", // cmd_addr
"ldr r1, [r3, #4]", // cmd_addr_len
"10:",
"ldrb r3, [r0]",
"strb r3, [r2]", // DR
@ -626,7 +631,8 @@ mod ram_helpers {
"bne 10b",
// Skip any dummy cycles
"ldr r1, [r7, #8]", // dummy_len
"mov r3, r10", // cmd
"ldr r1, [r3, #8]", // dummy_len
"cmp r1, #0",
"beq 9f",
"4:",
@ -643,8 +649,9 @@ mod ram_helpers {
// Read RX fifo
"9:",
"ldr r0, [r7, #12]", // data
"ldr r1, [r7, #16]", // data_len
"mov r2, r10", // cmd
"ldr r0, [r2, #12]", // data
"ldr r1, [r2, #16]", // data_len
"2:",
"ldr r3, [r4, #0x28]", // SR
@ -678,13 +685,12 @@ mod ram_helpers {
out("r2") _,
out("r3") _,
out("r4") _,
out("r5") _,
// Registers r8-r10 are used to store values
// from r0-r2 in registers not clobbered by
// function calls.
// The values can't be passed in using r8-r10 directly
// due to https://github.com/rust-lang/rust/issues/99071
out("r8") _,
out("r9") _,
out("r10") _,
clobber_abi("C"),
);

70
embassy-rp/src/float/div.rs
View file

@ -17,45 +17,43 @@ where
{
let sio = rp_pac::SIO;
unsafe {
// Since we can't save the signed-ness of the calculation, we have to make
// sure that there's at least an 8 cycle delay before we read the result.
// The Pico SDK ensures this by using a 6 cycle push and two 1 cycle reads.
// Since we can't be sure the Rust implementation will optimize to the same,
// just use an explicit wait.
while !sio.div().csr().read().ready() {}
// Since we can't save the signed-ness of the calculation, we have to make
// sure that there's at least an 8 cycle delay before we read the result.
// The Pico SDK ensures this by using a 6 cycle push and two 1 cycle reads.
// Since we can't be sure the Rust implementation will optimize to the same,
// just use an explicit wait.
while !sio.div().csr().read().ready() {}
// Read the quotient last, since that's what clears the dirty flag
let dividend = sio.div().udividend().read();
let divisor = sio.div().udivisor().read();
let remainder = sio.div().remainder().read();
let quotient = sio.div().quotient().read();
// Read the quotient last, since that's what clears the dirty flag
let dividend = sio.div().udividend().read();
let divisor = sio.div().udivisor().read();
let remainder = sio.div().remainder().read();
let quotient = sio.div().quotient().read();
// If we get interrupted here (before a write sets the DIRTY flag) its fine, since
// we have the full state, so the interruptor doesn't have to restore it. Once the
// write happens and the DIRTY flag is set, the interruptor becomes responsible for
// restoring our state.
let result = f();
// If we get interrupted here (before a write sets the DIRTY flag) its fine, since
// we have the full state, so the interruptor doesn't have to restore it. Once the
// write happens and the DIRTY flag is set, the interruptor becomes responsible for
// restoring our state.
let result = f();
// If we are interrupted here, then the interruptor will start an incorrect calculation
// using a wrong divisor, but we'll restore the divisor and result ourselves correctly.
// This sets DIRTY, so any interruptor will save the state.
sio.div().udividend().write_value(dividend);
// If we are interrupted here, the the interruptor may start the calculation using
// incorrectly signed inputs, but we'll restore the result ourselves.
// This sets DIRTY, so any interruptor will save the state.
sio.div().udivisor().write_value(divisor);
// If we are interrupted here, the interruptor will have restored everything but the
// quotient may be wrongly signed. If the calculation started by the above writes is
// still ongoing it is stopped, so it won't replace the result we're restoring.
// DIRTY and READY set, but only DIRTY matters to make the interruptor save the state.
sio.div().remainder().write_value(remainder);
// State fully restored after the quotient write. This sets both DIRTY and READY, so
// whatever we may have interrupted can read the result.
sio.div().quotient().write_value(quotient);
// If we are interrupted here, then the interruptor will start an incorrect calculation
// using a wrong divisor, but we'll restore the divisor and result ourselves correctly.
// This sets DIRTY, so any interruptor will save the state.
sio.div().udividend().write_value(dividend);
// If we are interrupted here, the the interruptor may start the calculation using
// incorrectly signed inputs, but we'll restore the result ourselves.
// This sets DIRTY, so any interruptor will save the state.
sio.div().udivisor().write_value(divisor);
// If we are interrupted here, the interruptor will have restored everything but the
// quotient may be wrongly signed. If the calculation started by the above writes is
// still ongoing it is stopped, so it won't replace the result we're restoring.
// DIRTY and READY set, but only DIRTY matters to make the interruptor save the state.
sio.div().remainder().write_value(remainder);
// State fully restored after the quotient write. This sets both DIRTY and READY, so
// whatever we may have interrupted can read the result.
sio.div().quotient().write_value(quotient);
result
}
result
}
fn save_divider<F, R>(f: F) -> R
@ -63,7 +61,7 @@ where
F: FnOnce() -> R,
{
let sio = rp_pac::SIO;
if unsafe { !sio.div().csr().read().dirty() } {
if !sio.div().csr().read().dirty() {
// Not dirty, so nothing is waiting for the calculation. So we can just
// issue it directly without a save/restore.
f()

186
embassy-rp/src/gpio.rs
View file

@ -3,10 +3,10 @@ use core::future::Future;
use core::pin::Pin as FuturePin;
use core::task::{Context, Poll};
use embassy_cortex_m::interrupt::{Interrupt, InterruptExt};
use embassy_hal_common::{impl_peripheral, into_ref, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
use crate::interrupt::InterruptExt;
use crate::pac::common::{Reg, RW};
use crate::pac::SIO;
use crate::{interrupt, pac, peripherals, Peripheral, RegExt};
@ -31,9 +31,9 @@ impl From<bool> for Level {
}
}
impl Into<bool> for Level {
fn into(self) -> bool {
match self {
impl From<Level> for bool {
fn from(level: Level) -> bool {
match level {
Level::Low => false,
Level::High => true,
}
@ -137,14 +137,14 @@ pub enum InterruptTrigger {
}
pub(crate) unsafe fn init() {
let irq = interrupt::IO_IRQ_BANK0::steal();
irq.disable();
irq.set_priority(interrupt::Priority::P3);
irq.enable();
interrupt::IO_IRQ_BANK0.disable();
interrupt::IO_IRQ_BANK0.set_priority(interrupt::Priority::P3);
interrupt::IO_IRQ_BANK0.enable();
}
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn IO_IRQ_BANK0() {
fn IO_IRQ_BANK0() {
let cpu = SIO.cpuid().read() as usize;
// There are two sets of interrupt registers, one for cpu0 and one for cpu1
// and here we are selecting the set that belongs to the currently executing
@ -185,46 +185,44 @@ struct InputFuture<'a, T: Pin> {
impl<'d, T: Pin> InputFuture<'d, T> {
pub fn new(pin: impl Peripheral<P = T> + 'd, level: InterruptTrigger) -> Self {
into_ref!(pin);
unsafe {
let pin_group = (pin.pin() % 8) as usize;
// first, clear the INTR register bits. without this INTR will still
// contain reports of previous edges, causing the IRQ to fire early
// on stale state. clearing these means that we can only detect edges
// that occur *after* the clear happened, but since both this and the
// alternative are fundamentally racy it's probably fine.
// (the alternative being checking the current level and waiting for
// its inverse, but that requires reading the current level and thus
// missing anything that happened before the level was read.)
pac::IO_BANK0.intr(pin.pin() as usize / 8).write(|w| {
w.set_edge_high(pin_group, true);
w.set_edge_low(pin_group, true);
});
let pin_group = (pin.pin() % 8) as usize;
// first, clear the INTR register bits. without this INTR will still
// contain reports of previous edges, causing the IRQ to fire early
// on stale state. clearing these means that we can only detect edges
// that occur *after* the clear happened, but since both this and the
// alternative are fundamentally racy it's probably fine.
// (the alternative being checking the current level and waiting for
// its inverse, but that requires reading the current level and thus
// missing anything that happened before the level was read.)
pac::IO_BANK0.intr(pin.pin() as usize / 8).write(|w| {
w.set_edge_high(pin_group, true);
w.set_edge_low(pin_group, true);
});
// Each INTR register is divided into 8 groups, one group for each
// pin, and each group consists of LEVEL_LOW, LEVEL_HIGH, EDGE_LOW,
// and EGDE_HIGH.
pin.int_proc()
.inte((pin.pin() / 8) as usize)
.write_set(|w| match level {
InterruptTrigger::LevelHigh => {
trace!("InputFuture::new enable LevelHigh for pin {}", pin.pin());
w.set_level_high(pin_group, true);
}
InterruptTrigger::LevelLow => {
w.set_level_low(pin_group, true);
}
InterruptTrigger::EdgeHigh => {
w.set_edge_high(pin_group, true);
}
InterruptTrigger::EdgeLow => {
w.set_edge_low(pin_group, true);
}
InterruptTrigger::AnyEdge => {
w.set_edge_high(pin_group, true);
w.set_edge_low(pin_group, true);
}
});
}
// Each INTR register is divided into 8 groups, one group for each
// pin, and each group consists of LEVEL_LOW, LEVEL_HIGH, EDGE_LOW,
// and EGDE_HIGH.
pin.int_proc()
.inte((pin.pin() / 8) as usize)
.write_set(|w| match level {
InterruptTrigger::LevelHigh => {
trace!("InputFuture::new enable LevelHigh for pin {}", pin.pin());
w.set_level_high(pin_group, true);
}
InterruptTrigger::LevelLow => {
w.set_level_low(pin_group, true);
}
InterruptTrigger::EdgeHigh => {
w.set_edge_high(pin_group, true);
}
InterruptTrigger::EdgeLow => {
w.set_edge_low(pin_group, true);
}
InterruptTrigger::AnyEdge => {
w.set_edge_high(pin_group, true);
w.set_edge_low(pin_group, true);
}
});
Self { pin, level }
}
@ -242,7 +240,7 @@ impl<'d, T: Pin> Future for InputFuture<'d, T> {
// then we want to access the interrupt enable register for our
// pin (there are 4 of these PROC0_INTE0, PROC0_INTE1, PROC0_INTE2, and
// PROC0_INTE3 per cpu).
let inte: pac::io::regs::Int = unsafe { self.pin.int_proc().inte((self.pin.pin() / 8) as usize).read() };
let inte: pac::io::regs::Int = self.pin.int_proc().inte((self.pin.pin() / 8) as usize).read();
// The register is divided into groups of four, one group for
// each pin. Each group consists of four trigger levels LEVEL_LOW,
// LEVEL_HIGH, EDGE_LOW, and EDGE_HIGH for each pin.
@ -449,15 +447,13 @@ impl<'d, T: Pin> Flex<'d, T> {
pub fn new(pin: impl Peripheral<P = T> + 'd) -> Self {
into_ref!(pin);
unsafe {
pin.pad_ctrl().write(|w| {
w.set_ie(true);
});
pin.pad_ctrl().write(|w| {
w.set_ie(true);
});
pin.io().ctrl().write(|w| {
w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::SIO_0.0);
});
}
pin.io().ctrl().write(|w| {
w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::SIO_0.0);
});
Self { pin }
}
@ -470,43 +466,37 @@ impl<'d, T: Pin> Flex<'d, T> {
/// Set the pin's pull.
#[inline]
pub fn set_pull(&mut self, pull: Pull) {
unsafe {
self.pin.pad_ctrl().modify(|w| {
w.set_ie(true);
let (pu, pd) = match pull {
Pull::Up => (true, false),
Pull::Down => (false, true),
Pull::None => (false, false),
};
w.set_pue(pu);
w.set_pde(pd);
});
}
self.pin.pad_ctrl().modify(|w| {
w.set_ie(true);
let (pu, pd) = match pull {
Pull::Up => (true, false),
Pull::Down => (false, true),
Pull::None => (false, false),
};
w.set_pue(pu);
w.set_pde(pd);
});
}
/// Set the pin's drive strength.
#[inline]
pub fn set_drive_strength(&mut self, strength: Drive) {
unsafe {
self.pin.pad_ctrl().modify(|w| {
w.set_drive(match strength {
Drive::_2mA => pac::pads::vals::Drive::_2MA,
Drive::_4mA => pac::pads::vals::Drive::_4MA,
Drive::_8mA => pac::pads::vals::Drive::_8MA,
Drive::_12mA => pac::pads::vals::Drive::_12MA,
});
self.pin.pad_ctrl().modify(|w| {
w.set_drive(match strength {
Drive::_2mA => pac::pads::vals::Drive::_2MA,
Drive::_4mA => pac::pads::vals::Drive::_4MA,
Drive::_8mA => pac::pads::vals::Drive::_8MA,
Drive::_12mA => pac::pads::vals::Drive::_12MA,
});
}
});
}
// Set the pin's slew rate.
#[inline]
pub fn set_slew_rate(&mut self, slew_rate: SlewRate) {
unsafe {
self.pin.pad_ctrl().modify(|w| {
w.set_slewfast(slew_rate == SlewRate::Fast);
});
}
self.pin.pad_ctrl().modify(|w| {
w.set_slewfast(slew_rate == SlewRate::Fast);
});
}
/// Put the pin into input mode.
@ -514,7 +504,7 @@ impl<'d, T: Pin> Flex<'d, T> {
/// The pull setting is left unchanged.
#[inline]
pub fn set_as_input(&mut self) {
unsafe { self.pin.sio_oe().value_clr().write_value(self.bit()) }
self.pin.sio_oe().value_clr().write_value(self.bit())
}
/// Put the pin into output mode.
@ -523,17 +513,17 @@ impl<'d, T: Pin> Flex<'d, T> {
/// at a specific level, call `set_high`/`set_low` on the pin first.
#[inline]
pub fn set_as_output(&mut self) {
unsafe { self.pin.sio_oe().value_set().write_value(self.bit()) }
self.pin.sio_oe().value_set().write_value(self.bit())
}
#[inline]
fn is_set_as_output(&self) -> bool {
unsafe { (self.pin.sio_oe().value().read() & self.bit()) != 0 }
(self.pin.sio_oe().value().read() & self.bit()) != 0
}
#[inline]
pub fn toggle_set_as_output(&mut self) {
unsafe { self.pin.sio_oe().value_xor().write_value(self.bit()) }
self.pin.sio_oe().value_xor().write_value(self.bit())
}
#[inline]
@ -543,7 +533,7 @@ impl<'d, T: Pin> Flex<'d, T> {
#[inline]
pub fn is_low(&self) -> bool {
unsafe { self.pin.sio_in().read() & self.bit() == 0 }
self.pin.sio_in().read() & self.bit() == 0
}
/// Returns current pin level
@ -555,13 +545,13 @@ impl<'d, T: Pin> Flex<'d, T> {
/// Set the output as high.
#[inline]
pub fn set_high(&mut self) {
unsafe { self.pin.sio_out().value_set().write_value(self.bit()) }
self.pin.sio_out().value_set().write_value(self.bit())
}
/// Set the output as low.
#[inline]
pub fn set_low(&mut self) {
unsafe { self.pin.sio_out().value_clr().write_value(self.bit()) }
self.pin.sio_out().value_clr().write_value(self.bit())
}
/// Set the output level.
@ -576,7 +566,7 @@ impl<'d, T: Pin> Flex<'d, T> {
/// Is the output level high?
#[inline]
pub fn is_set_high(&self) -> bool {
unsafe { (self.pin.sio_out().value().read() & self.bit()) == 0 }
(self.pin.sio_out().value().read() & self.bit()) == 0
}
/// Is the output level low?
@ -594,7 +584,7 @@ impl<'d, T: Pin> Flex<'d, T> {
/// Toggle pin output
#[inline]
pub fn toggle(&mut self) {
unsafe { self.pin.sio_out().value_xor().write_value(self.bit()) }
self.pin.sio_out().value_xor().write_value(self.bit())
}
#[inline]
@ -626,12 +616,10 @@ impl<'d, T: Pin> Flex<'d, T> {
impl<'d, T: Pin> Drop for Flex<'d, T> {
#[inline]
fn drop(&mut self) {
unsafe {
self.pin.pad_ctrl().write(|_| {});
self.pin.io().ctrl().write(|w| {
w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::NULL.0);
});
}
self.pin.pad_ctrl().write(|_| {});
self.pin.io().ctrl().write(|w| {
w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::NULL.0);
});
}
}
@ -688,7 +676,7 @@ pub(crate) mod sealed {
Bank::Bank0 => crate::pac::IO_BANK0,
Bank::Qspi => crate::pac::IO_QSPI,
};
let proc = unsafe { SIO.cpuid().read() };
let proc = SIO.cpuid().read();
io_block.int_proc(proc as _)
}
}

335
embassy-rp/src/i2c.rs
View file

@ -2,14 +2,14 @@ use core::future;
use core::marker::PhantomData;
use core::task::Poll;
use embassy_cortex_m::interrupt::{self, Binding, Interrupt, InterruptExt};
use embassy_hal_common::{into_ref, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
use pac::i2c;
use crate::gpio::sealed::Pin;
use crate::gpio::AnyPin;
use crate::{pac, peripherals, Peripheral};
use crate::interrupt::typelevel::{Binding, Interrupt};
use crate::{interrupt, pac, peripherals, Peripheral};
/// I2C error abort reason
#[derive(Debug)]
@ -82,14 +82,12 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
let i2c = Self::new_inner(peri, scl.map_into(), sda.map_into(), config);
unsafe {
let i2c = T::regs();
let r = T::regs();
// mask everything initially
i2c.ic_intr_mask().write_value(i2c::regs::IcIntrMask(0));
T::Interrupt::steal().unpend();
T::Interrupt::steal().enable();
}
// mask everything initially
r.ic_intr_mask().write_value(i2c::regs::IcIntrMask(0));
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
i2c
}
@ -137,13 +135,11 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
let last = remaining_queue == 0;
batch += 1;
unsafe {
p.ic_data_cmd().write(|w| {
w.set_restart(restart && remaining_queue == buffer.len() - 1);
w.set_stop(last && send_stop);
w.set_cmd(true);
});
}
p.ic_data_cmd().write(|w| {
w.set_restart(restart && remaining_queue == buffer.len() - 1);
w.set_stop(last && send_stop);
w.set_cmd(true);
});
}
// We've either run out of txfifo or just plain finished setting up
@ -163,7 +159,7 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
Poll::Pending
}
},
|_me| unsafe {
|_me| {
// Set the read threshold to the number of bytes we're
// expecting so we don't get spurious interrupts.
p.ic_rx_tl().write(|w| w.set_rx_tl(batch - 1));
@ -187,7 +183,7 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
let rxbytes = (rxfifo as usize).min(remaining);
let received = buffer.len() - remaining;
for b in &mut buffer[received..received + rxbytes] {
*b = unsafe { p.ic_data_cmd().read().dat() };
*b = p.ic_data_cmd().read().dat();
}
remaining -= rxbytes;
}
@ -213,13 +209,11 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
if let Some(byte) = bytes.next() {
let last = bytes.peek().is_none();
unsafe {
p.ic_data_cmd().write(|w| {
w.set_stop(last && send_stop);
w.set_cmd(false);
w.set_dat(byte);
});
}
p.ic_data_cmd().write(|w| {
w.set_stop(last && send_stop);
w.set_cmd(false);
w.set_dat(byte);
});
} else {
break 'xmit Ok(());
}
@ -237,7 +231,7 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
Poll::Pending
}
},
|_me| unsafe {
|_me| {
// Set tx "free" threshold a little high so that we get
// woken before the fifo completely drains to minimize
// transfer stalls.
@ -269,7 +263,7 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
let had_abort2 = self
.wait_on(
|me| unsafe {
|me| {
// We could see an abort while processing fifo backlog,
// so handle it here.
let abort = me.read_and_clear_abort_reason();
@ -281,7 +275,7 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
Poll::Pending
}
},
|_me| unsafe {
|_me| {
p.ic_intr_mask().modify(|w| {
w.set_m_stop_det(true);
w.set_m_tx_abrt(true);
@ -289,9 +283,7 @@ impl<'d, T: Instance> I2c<'d, T, Async> {
},
)
.await;
unsafe {
p.ic_clr_stop_det().read();
}
p.ic_clr_stop_det().read();
had_abort.and(had_abort2)
} else {
@ -314,7 +306,7 @@ pub struct InterruptHandler<T: Instance> {
_uart: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
// Mask interrupts and wake any task waiting for this interrupt
unsafe fn on_interrupt() {
let i2c = T::regs();
@ -338,95 +330,93 @@ impl<'d, T: Instance + 'd, M: Mode> I2c<'d, T, M> {
let p = T::regs();
unsafe {
let reset = T::reset();
crate::reset::reset(reset);
crate::reset::unreset_wait(reset);
let reset = T::reset();
crate::reset::reset(reset);
crate::reset::unreset_wait(reset);
p.ic_enable().write(|w| w.set_enable(false));
p.ic_enable().write(|w| w.set_enable(false));
// Select controller mode & speed
p.ic_con().modify(|w| {
// Always use "fast" mode (<= 400 kHz, works fine for standard
// mode too)
w.set_speed(i2c::vals::Speed::FAST);
w.set_master_mode(true);
w.set_ic_slave_disable(true);
w.set_ic_restart_en(true);
w.set_tx_empty_ctrl(true);
});
// Select controller mode & speed
p.ic_con().modify(|w| {
// Always use "fast" mode (<= 400 kHz, works fine for standard
// mode too)
w.set_speed(i2c::vals::Speed::FAST);
w.set_master_mode(true);
w.set_ic_slave_disable(true);
w.set_ic_restart_en(true);
w.set_tx_empty_ctrl(true);
});
// Set FIFO watermarks to 1 to make things simpler. This is encoded
// by a register value of 0.
p.ic_tx_tl().write(|w| w.set_tx_tl(0));
p.ic_rx_tl().write(|w| w.set_rx_tl(0));
// Set FIFO watermarks to 1 to make things simpler. This is encoded
// by a register value of 0.
p.ic_tx_tl().write(|w| w.set_tx_tl(0));
p.ic_rx_tl().write(|w| w.set_rx_tl(0));
// Configure SCL & SDA pins
scl.io().ctrl().write(|w| w.set_funcsel(3));
sda.io().ctrl().write(|w| w.set_funcsel(3));
// Configure SCL & SDA pins
scl.io().ctrl().write(|w| w.set_funcsel(3));
sda.io().ctrl().write(|w| w.set_funcsel(3));
scl.pad_ctrl().write(|w| {
w.set_schmitt(true);
w.set_ie(true);
w.set_od(false);
w.set_pue(true);
w.set_pde(false);
});
sda.pad_ctrl().write(|w| {
w.set_schmitt(true);
w.set_ie(true);
w.set_od(false);
w.set_pue(true);
w.set_pde(false);
});
scl.pad_ctrl().write(|w| {
w.set_schmitt(true);
w.set_ie(true);
w.set_od(false);
w.set_pue(true);
w.set_pde(false);
});
sda.pad_ctrl().write(|w| {
w.set_schmitt(true);
w.set_ie(true);
w.set_od(false);
w.set_pue(true);
w.set_pde(false);
});
// Configure baudrate
// Configure baudrate
// There are some subtleties to I2C timing which we are completely
// ignoring here See:
// https://github.com/raspberrypi/pico-sdk/blob/bfcbefafc5d2a210551a4d9d80b4303d4ae0adf7/src/rp2_common/hardware_i2c/i2c.c#L69
let clk_base = crate::clocks::clk_peri_freq();
// There are some subtleties to I2C timing which we are completely
// ignoring here See:
// https://github.com/raspberrypi/pico-sdk/blob/bfcbefafc5d2a210551a4d9d80b4303d4ae0adf7/src/rp2_common/hardware_i2c/i2c.c#L69
let clk_base = crate::clocks::clk_peri_freq();
let period = (clk_base + config.frequency / 2) / config.frequency;
let lcnt = period * 3 / 5; // spend 3/5 (60%) of the period low
let hcnt = period - lcnt; // and 2/5 (40%) of the period high
let period = (clk_base + config.frequency / 2) / config.frequency;
let lcnt = period * 3 / 5; // spend 3/5 (60%) of the period low
let hcnt = period - lcnt; // and 2/5 (40%) of the period high
// Check for out-of-range divisors:
assert!(hcnt <= 0xffff);
assert!(lcnt <= 0xffff);
assert!(hcnt >= 8);
assert!(lcnt >= 8);
// Check for out-of-range divisors:
assert!(hcnt <= 0xffff);
assert!(lcnt <= 0xffff);
assert!(hcnt >= 8);
assert!(lcnt >= 8);
// Per I2C-bus specification a device in standard or fast mode must
// internally provide a hold time of at least 300ns for the SDA
// signal to bridge the undefined region of the falling edge of SCL.
// A smaller hold time of 120ns is used for fast mode plus.
let sda_tx_hold_count = if config.frequency < 1_000_000 {
// sda_tx_hold_count = clk_base [cycles/s] * 300ns * (1s /
// 1e9ns) Reduce 300/1e9 to 3/1e7 to avoid numbers that don't
// fit in uint. Add 1 to avoid division truncation.
((clk_base * 3) / 10_000_000) + 1
} else {
// fast mode plus requires a clk_base > 32MHz
assert!(clk_base >= 32_000_000);
// Per I2C-bus specification a device in standard or fast mode must
// internally provide a hold time of at least 300ns for the SDA
// signal to bridge the undefined region of the falling edge of SCL.
// A smaller hold time of 120ns is used for fast mode plus.
let sda_tx_hold_count = if config.frequency < 1_000_000 {
// sda_tx_hold_count = clk_base [cycles/s] * 300ns * (1s /
// 1e9ns) Reduce 300/1e9 to 3/1e7 to avoid numbers that don't
// fit in uint. Add 1 to avoid division truncation.
((clk_base * 3) / 10_000_000) + 1
} else {
// fast mode plus requires a clk_base > 32MHz
assert!(clk_base >= 32_000_000);
// sda_tx_hold_count = clk_base [cycles/s] * 120ns * (1s /
// 1e9ns) Reduce 120/1e9 to 3/25e6 to avoid numbers that don't
// fit in uint. Add 1 to avoid division truncation.
((clk_base * 3) / 25_000_000) + 1
};
assert!(sda_tx_hold_count <= lcnt - 2);
// sda_tx_hold_count = clk_base [cycles/s] * 120ns * (1s /
// 1e9ns) Reduce 120/1e9 to 3/25e6 to avoid numbers that don't
// fit in uint. Add 1 to avoid division truncation.
((clk_base * 3) / 25_000_000) + 1
};
assert!(sda_tx_hold_count <= lcnt - 2);
p.ic_fs_scl_hcnt().write(|w| w.set_ic_fs_scl_hcnt(hcnt as u16));
p.ic_fs_scl_lcnt().write(|w| w.set_ic_fs_scl_lcnt(lcnt as u16));
p.ic_fs_spklen()
.write(|w| w.set_ic_fs_spklen(if lcnt < 16 { 1 } else { (lcnt / 16) as u8 }));
p.ic_sda_hold()
.modify(|w| w.set_ic_sda_tx_hold(sda_tx_hold_count as u16));
p.ic_fs_scl_hcnt().write(|w| w.set_ic_fs_scl_hcnt(hcnt as u16));
p.ic_fs_scl_lcnt().write(|w| w.set_ic_fs_scl_lcnt(lcnt as u16));
p.ic_fs_spklen()
.write(|w| w.set_ic_fs_spklen(if lcnt < 16 { 1 } else { (lcnt / 16) as u8 }));
p.ic_sda_hold()
.modify(|w| w.set_ic_sda_tx_hold(sda_tx_hold_count as u16));
// Enable I2C block
p.ic_enable().write(|w| w.set_enable(true));
}
// Enable I2C block
p.ic_enable().write(|w| w.set_enable(true));
Self { phantom: PhantomData }
}
@ -441,11 +431,9 @@ impl<'d, T: Instance + 'd, M: Mode> I2c<'d, T, M> {
}
let p = T::regs();
unsafe {
p.ic_enable().write(|w| w.set_enable(false));
p.ic_tar().write(|w| w.set_ic_tar(addr));
p.ic_enable().write(|w| w.set_enable(true));
}
p.ic_enable().write(|w| w.set_enable(false));
p.ic_tar().write(|w| w.set_ic_tar(addr));
p.ic_enable().write(|w| w.set_enable(true));
Ok(())
}
@ -457,40 +445,38 @@ impl<'d, T: Instance + 'd, M: Mode> I2c<'d, T, M> {
#[inline]
fn tx_fifo_capacity() -> u8 {
let p = T::regs();
unsafe { FIFO_SIZE - p.ic_txflr().read().txflr() }
FIFO_SIZE - p.ic_txflr().read().txflr()
}
#[inline]
fn rx_fifo_len() -> u8 {
let p = T::regs();
unsafe { p.ic_rxflr().read().rxflr() }
p.ic_rxflr().read().rxflr()
}
fn read_and_clear_abort_reason(&mut self) -> Result<(), Error> {
let p = T::regs();
unsafe {
let abort_reason = p.ic_tx_abrt_source().read();
if abort_reason.0 != 0 {
// Note clearing the abort flag also clears the reason, and this
// instance of flag is clear-on-read! Note also the
// IC_CLR_TX_ABRT register always reads as 0.
p.ic_clr_tx_abrt().read();
let abort_reason = p.ic_tx_abrt_source().read();
if abort_reason.0 != 0 {
// Note clearing the abort flag also clears the reason, and this
// instance of flag is clear-on-read! Note also the
// IC_CLR_TX_ABRT register always reads as 0.
p.ic_clr_tx_abrt().read();
let reason = if abort_reason.abrt_7b_addr_noack()
| abort_reason.abrt_10addr1_noack()
| abort_reason.abrt_10addr2_noack()
{
AbortReason::NoAcknowledge
} else if abort_reason.arb_lost() {
AbortReason::ArbitrationLoss
} else {
AbortReason::Other(abort_reason.0)
};
Err(Error::Abort(reason))
let reason = if abort_reason.abrt_7b_addr_noack()
| abort_reason.abrt_10addr1_noack()
| abort_reason.abrt_10addr2_noack()
{
AbortReason::NoAcknowledge
} else if abort_reason.arb_lost() {
AbortReason::ArbitrationLoss
} else {
Ok(())
}
AbortReason::Other(abort_reason.0)
};
Err(Error::Abort(reason))
} else {
Ok(())
}
}
@ -505,24 +491,21 @@ impl<'d, T: Instance + 'd, M: Mode> I2c<'d, T, M> {
let first = i == 0;
let last = i == lastindex;
// NOTE(unsafe) We have &mut self
unsafe {
// wait until there is space in the FIFO to write the next byte
while Self::tx_fifo_full() {}
// wait until there is space in the FIFO to write the next byte
while Self::tx_fifo_full() {}
p.ic_data_cmd().write(|w| {
w.set_restart(restart && first);
w.set_stop(send_stop && last);
p.ic_data_cmd().write(|w| {
w.set_restart(restart && first);
w.set_stop(send_stop && last);
w.set_cmd(true);
});
w.set_cmd(true);
});
while Self::rx_fifo_len() == 0 {
self.read_and_clear_abort_reason()?;
}
*byte = p.ic_data_cmd().read().dat();
while Self::rx_fifo_len() == 0 {
self.read_and_clear_abort_reason()?;
}
*byte = p.ic_data_cmd().read().dat();
}
Ok(())
@ -538,36 +521,33 @@ impl<'d, T: Instance + 'd, M: Mode> I2c<'d, T, M> {
for (i, byte) in write.iter().enumerate() {
let last = i == write.len() - 1;
// NOTE(unsafe) We have &mut self
unsafe {
p.ic_data_cmd().write(|w| {
w.set_stop(send_stop && last);
w.set_dat(*byte);
});
p.ic_data_cmd().write(|w| {
w.set_stop(send_stop && last);
w.set_dat(*byte);
});
// Wait until the transmission of the address/data from the
// internal shift register has completed. For this to function
// correctly, the TX_EMPTY_CTRL flag in IC_CON must be set. The
// TX_EMPTY_CTRL flag was set in i2c_init.
while !p.ic_raw_intr_stat().read().tx_empty() {}
// Wait until the transmission of the address/data from the
// internal shift register has completed. For this to function
// correctly, the TX_EMPTY_CTRL flag in IC_CON must be set. The
// TX_EMPTY_CTRL flag was set in i2c_init.
while !p.ic_raw_intr_stat().read().tx_empty() {}
let abort_reason = self.read_and_clear_abort_reason();
let abort_reason = self.read_and_clear_abort_reason();
if abort_reason.is_err() || (send_stop && last) {
// If the transaction was aborted or if it completed
// successfully wait until the STOP condition has occurred.
if abort_reason.is_err() || (send_stop && last) {
// If the transaction was aborted or if it completed
// successfully wait until the STOP condition has occurred.
while !p.ic_raw_intr_stat().read().stop_det() {}
while !p.ic_raw_intr_stat().read().stop_det() {}
p.ic_clr_stop_det().read().clr_stop_det();
}
// Note the hardware issues a STOP automatically on an abort
// condition. Note also the hardware clears RX FIFO as well as
// TX on abort, ecause we set hwparam
// IC_AVOID_RX_FIFO_FLUSH_ON_TX_ABRT to 0.
abort_reason?;
p.ic_clr_stop_det().read().clr_stop_det();
}
// Note the hardware issues a STOP automatically on an abort
// condition. Note also the hardware clears RX FIFO as well as
// TX on abort, ecause we set hwparam
// IC_AVOID_RX_FIFO_FLUSH_ON_TX_ABRT to 0.
abort_reason?;
}
Ok(())
}
@ -762,14 +742,15 @@ fn i2c_reserved_addr(addr: u16) -> bool {
}
mod sealed {
use embassy_cortex_m::interrupt::Interrupt;
use embassy_sync::waitqueue::AtomicWaker;
use crate::interrupt;
pub trait Instance {
const TX_DREQ: u8;
const RX_DREQ: u8;
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
fn regs() -> crate::pac::i2c::I2c;
fn reset() -> crate::pac::resets::regs::Peripherals;
@ -805,7 +786,7 @@ macro_rules! impl_instance {
const TX_DREQ: u8 = $tx_dreq;
const RX_DREQ: u8 = $rx_dreq;
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
#[inline]
fn regs() -> pac::i2c::I2c {

65
embassy-rp/src/interrupt.rs
View file

@ -1,65 +0,0 @@
//! Interrupt definitions and macros to bind them.
pub use cortex_m::interrupt::{CriticalSection, Mutex};
use embassy_cortex_m::interrupt::_export::declare;
pub use embassy_cortex_m::interrupt::{Binding, Handler, Interrupt, InterruptExt, Priority};
use crate::pac::Interrupt as InterruptEnum;
declare!(TIMER_IRQ_0);
declare!(TIMER_IRQ_1);
declare!(TIMER_IRQ_2);
declare!(TIMER_IRQ_3);
declare!(PWM_IRQ_WRAP);
declare!(USBCTRL_IRQ);
declare!(XIP_IRQ);
declare!(PIO0_IRQ_0);
declare!(PIO0_IRQ_1);
declare!(PIO1_IRQ_0);
declare!(PIO1_IRQ_1);
declare!(DMA_IRQ_0);
declare!(DMA_IRQ_1);
declare!(IO_IRQ_BANK0);
declare!(IO_IRQ_QSPI);
declare!(SIO_IRQ_PROC0);
declare!(SIO_IRQ_PROC1);
declare!(CLOCKS_IRQ);
declare!(SPI0_IRQ);
declare!(SPI1_IRQ);
declare!(UART0_IRQ);
declare!(UART1_IRQ);
declare!(ADC_IRQ_FIFO);
declare!(I2C0_IRQ);
declare!(I2C1_IRQ);
declare!(RTC_IRQ);
declare!(SWI_IRQ_0);
declare!(SWI_IRQ_1);
declare!(SWI_IRQ_2);
declare!(SWI_IRQ_3);
declare!(SWI_IRQ_4);
declare!(SWI_IRQ_5);
/// Macro to bind interrupts to handlers.
///
/// This defines the right interrupt handlers, and creates a unit struct (like `struct Irqs;`)
/// and implements the right [`Binding`]s for it. You can pass this struct to drivers to
/// prove at compile-time that the right interrupts have been bound.
// developer note: this macro can't be in `embassy-cortex-m` due to the use of `$crate`.
#[macro_export]
macro_rules! bind_interrupts {
($vis:vis struct $name:ident { $($irq:ident => $($handler:ty),*;)* }) => {
$vis struct $name;
$(
#[allow(non_snake_case)]
#[no_mangle]
unsafe extern "C" fn $irq() {
$(
<$handler as $crate::interrupt::Handler<$crate::interrupt::$irq>>::on_interrupt();
)*
}
$(
unsafe impl $crate::interrupt::Binding<$crate::interrupt::$irq, $handler> for $name {}
)*
)*
};
}

98
embassy-rp/src/lib.rs
View file

@ -16,7 +16,6 @@ pub mod flash;
mod float;
pub mod gpio;
pub mod i2c;
pub mod interrupt;
pub mod multicore;
pub mod pwm;
mod reset;
@ -37,14 +36,77 @@ pub mod pio_instr_util;
pub mod relocate;
// Reexports
pub use embassy_cortex_m::executor;
pub use embassy_cortex_m::interrupt::_export::interrupt;
pub use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
#[cfg(feature = "unstable-pac")]
pub use rp_pac as pac;
#[cfg(not(feature = "unstable-pac"))]
pub(crate) use rp_pac as pac;
#[cfg(feature = "rt")]
pub use crate::pac::NVIC_PRIO_BITS;
embassy_hal_common::interrupt_mod!(
TIMER_IRQ_0,
TIMER_IRQ_1,
TIMER_IRQ_2,
TIMER_IRQ_3,
PWM_IRQ_WRAP,
USBCTRL_IRQ,
XIP_IRQ,
PIO0_IRQ_0,
PIO0_IRQ_1,
PIO1_IRQ_0,
PIO1_IRQ_1,
DMA_IRQ_0,
DMA_IRQ_1,
IO_IRQ_BANK0,
IO_IRQ_QSPI,
SIO_IRQ_PROC0,
SIO_IRQ_PROC1,
CLOCKS_IRQ,
SPI0_IRQ,
SPI1_IRQ,
UART0_IRQ,
UART1_IRQ,
ADC_IRQ_FIFO,
I2C0_IRQ,
I2C1_IRQ,
RTC_IRQ,
SWI_IRQ_0,
SWI_IRQ_1,
SWI_IRQ_2,
SWI_IRQ_3,
SWI_IRQ_4,
SWI_IRQ_5,
);
/// Macro to bind interrupts to handlers.
///
/// This defines the right interrupt handlers, and creates a unit struct (like `struct Irqs;`)
/// and implements the right [`Binding`]s for it. You can pass this struct to drivers to
/// prove at compile-time that the right interrupts have been bound.
// developer note: this macro can't be in `embassy-hal-common` due to the use of `$crate`.
#[macro_export]
macro_rules! bind_interrupts {
($vis:vis struct $name:ident { $($irq:ident => $($handler:ty),*;)* }) => {
$vis struct $name;
$(
#[allow(non_snake_case)]
#[no_mangle]
unsafe extern "C" fn $irq() {
$(
<$handler as $crate::interrupt::typelevel::Handler<$crate::interrupt::typelevel::$irq>>::on_interrupt();
)*
}
$(
unsafe impl $crate::interrupt::typelevel::Binding<$crate::interrupt::typelevel::$irq, $handler> for $name {}
)*
)*
};
}
embassy_hal_common::peripherals! {
PIN_0,
PIN_1,
@ -199,33 +261,39 @@ pub fn init(config: config::Config) -> Peripherals {
/// Extension trait for PAC regs, adding atomic xor/bitset/bitclear writes.
trait RegExt<T: Copy> {
unsafe fn write_xor<R>(&self, f: impl FnOnce(&mut T) -> R) -> R;
unsafe fn write_set<R>(&self, f: impl FnOnce(&mut T) -> R) -> R;
unsafe fn write_clear<R>(&self, f: impl FnOnce(&mut T) -> R) -> R;
fn write_xor<R>(&self, f: impl FnOnce(&mut T) -> R) -> R;
fn write_set<R>(&self, f: impl FnOnce(&mut T) -> R) -> R;
fn write_clear<R>(&self, f: impl FnOnce(&mut T) -> R) -> R;
}
impl<T: Default + Copy, A: pac::common::Write> RegExt<T> for pac::common::Reg<T, A> {
unsafe fn write_xor<R>(&self, f: impl FnOnce(&mut T) -> R) -> R {
fn write_xor<R>(&self, f: impl FnOnce(&mut T) -> R) -> R {
let mut val = Default::default();
let res = f(&mut val);
let ptr = (self.ptr() as *mut u8).add(0x1000) as *mut T;
ptr.write_volatile(val);
unsafe {
let ptr = (self.as_ptr() as *mut u8).add(0x1000) as *mut T;
ptr.write_volatile(val);
}
res
}
unsafe fn write_set<R>(&self, f: impl FnOnce(&mut T) -> R) -> R {
fn write_set<R>(&self, f: impl FnOnce(&mut T) -> R) -> R {
let mut val = Default::default();
let res = f(&mut val);
let ptr = (self.ptr() as *mut u8).add(0x2000) as *mut T;
ptr.write_volatile(val);
unsafe {
let ptr = (self.as_ptr() as *mut u8).add(0x2000) as *mut T;
ptr.write_volatile(val);
}
res
}
unsafe fn write_clear<R>(&self, f: impl FnOnce(&mut T) -> R) -> R {
fn write_clear<R>(&self, f: impl FnOnce(&mut T) -> R) -> R {
let mut val = Default::default();
let res = f(&mut val);
let ptr = (self.ptr() as *mut u8).add(0x3000) as *mut T;
ptr.write_volatile(val);
unsafe {
let ptr = (self.as_ptr() as *mut u8).add(0x3000) as *mut T;
ptr.write_volatile(val);
}
res
}
}

63
embassy-rp/src/multicore.rs
View file

@ -50,7 +50,7 @@
use core::mem::ManuallyDrop;
use core::sync::atomic::{compiler_fence, AtomicBool, Ordering};
use crate::interrupt::{Interrupt, InterruptExt};
use crate::interrupt::InterruptExt;
use crate::peripherals::CORE1;
use crate::{gpio, interrupt, pac};
@ -106,6 +106,7 @@ impl<const SIZE: usize> Stack<SIZE> {
}
}
#[cfg(feature = "rt")]
#[interrupt]
#[link_section = ".data.ram_func"]
unsafe fn SIO_IRQ_PROC1() {
@ -156,21 +157,18 @@ where
IS_CORE1_INIT.store(true, Ordering::Release);
// Enable fifo interrupt on CORE1 for `pause` functionality.
let irq = unsafe { interrupt::SIO_IRQ_PROC1::steal() };
irq.enable();
unsafe { interrupt::SIO_IRQ_PROC1.enable() };
entry()
}
// Reset the core
unsafe {
let psm = pac::PSM;
psm.frce_off().modify(|w| w.set_proc1(true));
while !psm.frce_off().read().proc1() {
cortex_m::asm::nop();
}
psm.frce_off().modify(|w| w.set_proc1(false));
let psm = pac::PSM;
psm.frce_off().modify(|w| w.set_proc1(true));
while !psm.frce_off().read().proc1() {
cortex_m::asm::nop();
}
psm.frce_off().modify(|w| w.set_proc1(false));
// The ARM AAPCS ABI requires 8-byte stack alignment.
// #[align] on `struct Stack` ensures the bottom is aligned, but the top could still be
@ -270,14 +268,12 @@ pub fn resume_core1() {
// Push a value to the inter-core FIFO, block until space is available
#[inline(always)]
fn fifo_write(value: u32) {
unsafe {
let sio = pac::SIO;
// Wait for the FIFO to have enough space
while !sio.fifo().st().read().rdy() {
cortex_m::asm::nop();
}
sio.fifo().wr().write_value(value);
let sio = pac::SIO;
// Wait for the FIFO to have enough space
while !sio.fifo().st().read().rdy() {
cortex_m::asm::nop();
}
sio.fifo().wr().write_value(value);
// Fire off an event to the other core.
// This is required as the other core may be `wfe` (waiting for event)
cortex_m::asm::sev();
@ -286,37 +282,32 @@ fn fifo_write(value: u32) {
// Pop a value from inter-core FIFO, block until available
#[inline(always)]
fn fifo_read() -> u32 {
unsafe {
let sio = pac::SIO;
// Wait until FIFO has data
while !sio.fifo().st().read().vld() {
cortex_m::asm::nop();
}
sio.fifo().rd().read()
let sio = pac::SIO;
// Wait until FIFO has data
while !sio.fifo().st().read().vld() {
cortex_m::asm::nop();
}
sio.fifo().rd().read()
}
// Pop a value from inter-core FIFO, `wfe` until available
#[inline(always)]
#[allow(unused)]
fn fifo_read_wfe() -> u32 {
unsafe {
let sio = pac::SIO;
// Wait until FIFO has data
while !sio.fifo().st().read().vld() {
cortex_m::asm::wfe();
}
sio.fifo().rd().read()
let sio = pac::SIO;
// Wait until FIFO has data
while !sio.fifo().st().read().vld() {
cortex_m::asm::wfe();
}
sio.fifo().rd().read()
}
// Drain inter-core FIFO
#[inline(always)]
fn fifo_drain() {
unsafe {
let sio = pac::SIO;
while sio.fifo().st().read().vld() {
let _ = sio.fifo().rd().read();
}
let sio = pac::SIO;
while sio.fifo().st().read().vld() {
let _ = sio.fifo().rd().read();
}
}

468
embassy-rp/src/pio.rs
View file

@ -5,7 +5,6 @@ use core::sync::atomic::{compiler_fence, Ordering};
use core::task::{Context, Poll};
use atomic_polyfill::{AtomicU32, AtomicU8};
use embassy_cortex_m::interrupt::{Interrupt, InterruptExt};
use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
use fixed::types::extra::U8;
@ -17,6 +16,7 @@ use pio::{SideSet, Wrap};
use crate::dma::{Channel, Transfer, Word};
use crate::gpio::sealed::Pin as SealedPin;
use crate::gpio::{self, AnyPin, Drive, Level, Pull, SlewRate};
use crate::interrupt::InterruptExt;
use crate::pac::dma::vals::TreqSel;
use crate::relocate::RelocatedProgram;
use crate::{interrupt, pac, peripherals, pio_instr_util, RegExt};
@ -85,8 +85,9 @@ const RXNEMPTY_MASK: u32 = 1 << 0;
const TXNFULL_MASK: u32 = 1 << 4;
const SMIRQ_MASK: u32 = 1 << 8;
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn PIO0_IRQ_0() {
fn PIO0_IRQ_0() {
use crate::pac;
let ints = pac::PIO0.irqs(0).ints().read().0;
for bit in 0..12 {
@ -97,8 +98,9 @@ unsafe fn PIO0_IRQ_0() {
pac::PIO0.irqs(0).inte().write_clear(|m| m.0 = ints);
}
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn PIO1_IRQ_0() {
fn PIO1_IRQ_0() {
use crate::pac;
let ints = pac::PIO1.irqs(0).ints().read().0;
for bit in 0..12 {
@ -110,17 +112,15 @@ unsafe fn PIO1_IRQ_0() {
}
pub(crate) unsafe fn init() {
let irq = interrupt::PIO0_IRQ_0::steal();
irq.disable();
irq.set_priority(interrupt::Priority::P3);
interrupt::PIO0_IRQ_0.disable();
interrupt::PIO0_IRQ_0.set_priority(interrupt::Priority::P3);
pac::PIO0.irqs(0).inte().write(|m| m.0 = 0);
irq.enable();
interrupt::PIO0_IRQ_0.enable();
let irq = interrupt::PIO1_IRQ_0::steal();
irq.disable();
irq.set_priority(interrupt::Priority::P3);
interrupt::PIO1_IRQ_0.disable();
interrupt::PIO1_IRQ_0.set_priority(interrupt::Priority::P3);
pac::PIO1.irqs(0).inte().write(|m| m.0 = 0);
irq.enable();
interrupt::PIO1_IRQ_0.enable();
}
/// Future that waits for TX-FIFO to become writable
@ -145,11 +145,9 @@ impl<'a, 'd, PIO: Instance, const SM: usize> Future for FifoOutFuture<'a, 'd, PI
Poll::Ready(())
} else {
WAKERS[PIO::PIO_NO as usize].fifo_out()[SM].register(cx.waker());
unsafe {
PIO::PIO.irqs(0).inte().write_set(|m| {
m.0 = TXNFULL_MASK << SM;
});
}
PIO::PIO.irqs(0).inte().write_set(|m| {
m.0 = TXNFULL_MASK << SM;
});
// debug!("Pending");
Poll::Pending
}
@ -158,11 +156,9 @@ impl<'a, 'd, PIO: Instance, const SM: usize> Future for FifoOutFuture<'a, 'd, PI
impl<'a, 'd, PIO: Instance, const SM: usize> Drop for FifoOutFuture<'a, 'd, PIO, SM> {
fn drop(&mut self) {
unsafe {
PIO::PIO.irqs(0).inte().write_clear(|m| {
m.0 = TXNFULL_MASK << SM;
});
}
PIO::PIO.irqs(0).inte().write_clear(|m| {
m.0 = TXNFULL_MASK << SM;
});
}
}
@ -186,11 +182,9 @@ impl<'a, 'd, PIO: Instance, const SM: usize> Future for FifoInFuture<'a, 'd, PIO
Poll::Ready(v)
} else {
WAKERS[PIO::PIO_NO as usize].fifo_in()[SM].register(cx.waker());
unsafe {
PIO::PIO.irqs(0).inte().write_set(|m| {
m.0 = RXNEMPTY_MASK << SM;
});
}
PIO::PIO.irqs(0).inte().write_set(|m| {
m.0 = RXNEMPTY_MASK << SM;
});
//debug!("Pending");
Poll::Pending
}
@ -199,11 +193,9 @@ impl<'a, 'd, PIO: Instance, const SM: usize> Future for FifoInFuture<'a, 'd, PIO
impl<'a, 'd, PIO: Instance, const SM: usize> Drop for FifoInFuture<'a, 'd, PIO, SM> {
fn drop(&mut self) {
unsafe {
PIO::PIO.irqs(0).inte().write_clear(|m| {
m.0 = RXNEMPTY_MASK << SM;
});
}
PIO::PIO.irqs(0).inte().write_clear(|m| {
m.0 = RXNEMPTY_MASK << SM;
});
}
}
@ -220,30 +212,24 @@ impl<'a, 'd, PIO: Instance> Future for IrqFuture<'a, 'd, PIO> {
//debug!("Poll {},{}", PIO::PIO_NO, SM);
// Check if IRQ flag is already set
if unsafe { PIO::PIO.irq().read().0 & (1 << self.irq_no) != 0 } {
unsafe {
PIO::PIO.irq().write(|m| m.0 = 1 << self.irq_no);
}
if PIO::PIO.irq().read().0 & (1 << self.irq_no) != 0 {
PIO::PIO.irq().write(|m| m.0 = 1 << self.irq_no);
return Poll::Ready(());
}
WAKERS[PIO::PIO_NO as usize].irq()[self.irq_no as usize].register(cx.waker());
unsafe {
PIO::PIO.irqs(0).inte().write_set(|m| {
m.0 = SMIRQ_MASK << self.irq_no;
});
}
PIO::PIO.irqs(0).inte().write_set(|m| {
m.0 = SMIRQ_MASK << self.irq_no;
});
Poll::Pending
}
}
impl<'a, 'd, PIO: Instance> Drop for IrqFuture<'a, 'd, PIO> {
fn drop(&mut self) {
unsafe {
PIO::PIO.irqs(0).inte().write_clear(|m| {
m.0 = SMIRQ_MASK << self.irq_no;
});
}
PIO::PIO.irqs(0).inte().write_clear(|m| {
m.0 = SMIRQ_MASK << self.irq_no;
});
}
}
@ -256,57 +242,47 @@ impl<'l, PIO: Instance> Pin<'l, PIO> {
/// Set the pin's drive strength.
#[inline]
pub fn set_drive_strength(&mut self, strength: Drive) {
unsafe {
self.pin.pad_ctrl().modify(|w| {
w.set_drive(match strength {
Drive::_2mA => pac::pads::vals::Drive::_2MA,
Drive::_4mA => pac::pads::vals::Drive::_4MA,
Drive::_8mA => pac::pads::vals::Drive::_8MA,
Drive::_12mA => pac::pads::vals::Drive::_12MA,
});
self.pin.pad_ctrl().modify(|w| {
w.set_drive(match strength {
Drive::_2mA => pac::pads::vals::Drive::_2MA,
Drive::_4mA => pac::pads::vals::Drive::_4MA,
Drive::_8mA => pac::pads::vals::Drive::_8MA,
Drive::_12mA => pac::pads::vals::Drive::_12MA,
});
}
});
}
// Set the pin's slew rate.
#[inline]
pub fn set_slew_rate(&mut self, slew_rate: SlewRate) {
unsafe {
self.pin.pad_ctrl().modify(|w| {
w.set_slewfast(slew_rate == SlewRate::Fast);
});
}
self.pin.pad_ctrl().modify(|w| {
w.set_slewfast(slew_rate == SlewRate::Fast);
});
}
/// Set the pin's pull.
#[inline]
pub fn set_pull(&mut self, pull: Pull) {
unsafe {
self.pin.pad_ctrl().modify(|w| {
w.set_pue(pull == Pull::Up);
w.set_pde(pull == Pull::Down);
});
}
self.pin.pad_ctrl().modify(|w| {
w.set_pue(pull == Pull::Up);
w.set_pde(pull == Pull::Down);
});
}
/// Set the pin's schmitt trigger.
#[inline]
pub fn set_schmitt(&mut self, enable: bool) {
unsafe {
self.pin.pad_ctrl().modify(|w| {
w.set_schmitt(enable);
});
}
self.pin.pad_ctrl().modify(|w| {
w.set_schmitt(enable);
});
}
pub fn set_input_sync_bypass<'a>(&mut self, bypass: bool) {
let mask = 1 << self.pin();
unsafe {
if bypass {
PIO::PIO.input_sync_bypass().write_set(|w| *w = mask);
} else {
PIO::PIO.input_sync_bypass().write_clear(|w| *w = mask);
}
if bypass {
PIO::PIO.input_sync_bypass().write_set(|w| *w = mask);
} else {
PIO::PIO.input_sync_bypass().write_clear(|w| *w = mask);
}
}
@ -321,41 +297,37 @@ pub struct StateMachineRx<'d, PIO: Instance, const SM: usize> {
impl<'d, PIO: Instance, const SM: usize> StateMachineRx<'d, PIO, SM> {
pub fn empty(&self) -> bool {
unsafe { PIO::PIO.fstat().read().rxempty() & (1u8 << SM) != 0 }
PIO::PIO.fstat().read().rxempty() & (1u8 << SM) != 0
}
pub fn full(&self) -> bool {
unsafe { PIO::PIO.fstat().read().rxfull() & (1u8 << SM) != 0 }
PIO::PIO.fstat().read().rxfull() & (1u8 << SM) != 0
}
pub fn level(&self) -> u8 {
unsafe { (PIO::PIO.flevel().read().0 >> (SM * 8 + 4)) as u8 & 0x0f }
(PIO::PIO.flevel().read().0 >> (SM * 8 + 4)) as u8 & 0x0f
}
pub fn stalled(&self) -> bool {
unsafe {
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().rxstall() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_rxstall(1 << SM));
}
ret
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().rxstall() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_rxstall(1 << SM));
}
ret
}
pub fn underflowed(&self) -> bool {
unsafe {
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().rxunder() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_rxunder(1 << SM));
}
ret
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().rxunder() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_rxunder(1 << SM));
}
ret
}
pub fn pull(&mut self) -> u32 {
unsafe { PIO::PIO.rxf(SM).read() }
PIO::PIO.rxf(SM).read()
}
pub fn try_pull(&mut self) -> Option<u32> {
@ -374,24 +346,22 @@ impl<'d, PIO: Instance, const SM: usize> StateMachineRx<'d, PIO, SM> {
ch: PeripheralRef<'a, C>,
data: &'a mut [W],
) -> Transfer<'a, C> {
unsafe {
let pio_no = PIO::PIO_NO;
let p = ch.regs();
p.write_addr().write_value(data.as_ptr() as u32);
p.read_addr().write_value(PIO::PIO.rxf(SM).ptr() as u32);
p.trans_count().write_value(data.len() as u32);
compiler_fence(Ordering::SeqCst);
p.ctrl_trig().write(|w| {
// Set RX DREQ for this statemachine
w.set_treq_sel(TreqSel(pio_no * 8 + SM as u8 + 4));
w.set_data_size(W::size());
w.set_chain_to(ch.number());
w.set_incr_read(false);
w.set_incr_write(true);
w.set_en(true);
});
compiler_fence(Ordering::SeqCst);
}
let pio_no = PIO::PIO_NO;
let p = ch.regs();
p.write_addr().write_value(data.as_ptr() as u32);
p.read_addr().write_value(PIO::PIO.rxf(SM).as_ptr() as u32);
p.trans_count().write_value(data.len() as u32);
compiler_fence(Ordering::SeqCst);
p.ctrl_trig().write(|w| {
// Set RX DREQ for this statemachine
w.set_treq_sel(TreqSel(pio_no * 8 + SM as u8 + 4));
w.set_data_size(W::size());
w.set_chain_to(ch.number());
w.set_incr_read(false);
w.set_incr_write(true);
w.set_en(true);
});
compiler_fence(Ordering::SeqCst);
Transfer::new(ch)
}
}
@ -402,42 +372,36 @@ pub struct StateMachineTx<'d, PIO: Instance, const SM: usize> {
impl<'d, PIO: Instance, const SM: usize> StateMachineTx<'d, PIO, SM> {
pub fn empty(&self) -> bool {
unsafe { PIO::PIO.fstat().read().txempty() & (1u8 << SM) != 0 }
PIO::PIO.fstat().read().txempty() & (1u8 << SM) != 0
}
pub fn full(&self) -> bool {
unsafe { PIO::PIO.fstat().read().txfull() & (1u8 << SM) != 0 }
PIO::PIO.fstat().read().txfull() & (1u8 << SM) != 0
}
pub fn level(&self) -> u8 {
unsafe { (PIO::PIO.flevel().read().0 >> (SM * 8)) as u8 & 0x0f }
(PIO::PIO.flevel().read().0 >> (SM * 8)) as u8 & 0x0f
}
pub fn stalled(&self) -> bool {
unsafe {
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().txstall() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_txstall(1 << SM));
}
ret
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().txstall() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_txstall(1 << SM));
}
ret
}
pub fn overflowed(&self) -> bool {
unsafe {
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().txover() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_txover(1 << SM));
}
ret
let fdebug = PIO::PIO.fdebug();
let ret = fdebug.read().txover() & (1 << SM) != 0;
if ret {
fdebug.write(|w| w.set_txover(1 << SM));
}
ret
}
pub fn push(&mut self, v: u32) {
unsafe {
PIO::PIO.txf(SM).write_value(v);
}
PIO::PIO.txf(SM).write_value(v);
}
pub fn try_push(&mut self, v: u32) -> bool {
@ -453,24 +417,22 @@ impl<'d, PIO: Instance, const SM: usize> StateMachineTx<'d, PIO, SM> {
}
pub fn dma_push<'a, C: Channel, W: Word>(&'a mut self, ch: PeripheralRef<'a, C>, data: &'a [W]) -> Transfer<'a, C> {
unsafe {
let pio_no = PIO::PIO_NO;
let p = ch.regs();
p.read_addr().write_value(data.as_ptr() as u32);
p.write_addr().write_value(PIO::PIO.txf(SM).ptr() as u32);
p.trans_count().write_value(data.len() as u32);
compiler_fence(Ordering::SeqCst);
p.ctrl_trig().write(|w| {
// Set TX DREQ for this statemachine
w.set_treq_sel(TreqSel(pio_no * 8 + SM as u8));
w.set_data_size(W::size());
w.set_chain_to(ch.number());
w.set_incr_read(true);
w.set_incr_write(false);
w.set_en(true);
});
compiler_fence(Ordering::SeqCst);
}
let pio_no = PIO::PIO_NO;
let p = ch.regs();
p.read_addr().write_value(data.as_ptr() as u32);
p.write_addr().write_value(PIO::PIO.txf(SM).as_ptr() as u32);
p.trans_count().write_value(data.len() as u32);
compiler_fence(Ordering::SeqCst);
p.ctrl_trig().write(|w| {
// Set TX DREQ for this statemachine
w.set_treq_sel(TreqSel(pio_no * 8 + SM as u8));
w.set_data_size(W::size());
w.set_chain_to(ch.number());
w.set_incr_read(true);
w.set_incr_write(false);
w.set_en(true);
});
compiler_fence(Ordering::SeqCst);
Transfer::new(ch)
}
}
@ -482,9 +444,7 @@ pub struct StateMachine<'d, PIO: Instance, const SM: usize> {
impl<'d, PIO: Instance, const SM: usize> Drop for StateMachine<'d, PIO, SM> {
fn drop(&mut self) {
unsafe {
PIO::PIO.ctrl().write_clear(|w| w.set_sm_enable(1 << SM));
}
PIO::PIO.ctrl().write_clear(|w| w.set_sm_enable(1 << SM));
on_pio_drop::<PIO>();
}
}
@ -647,45 +607,43 @@ impl<'d, PIO: Instance + 'd, const SM: usize> StateMachine<'d, PIO, SM> {
assert!(config.shift_in.threshold <= 32, "shift_in.threshold must be <= 32");
assert!(config.shift_out.threshold <= 32, "shift_out.threshold must be <= 32");
let sm = Self::this_sm();
unsafe {
sm.clkdiv().write(|w| w.0 = config.clock_divider.to_bits() << 8);
sm.execctrl().write(|w| {
w.set_side_en(config.exec.side_en);
w.set_side_pindir(config.exec.side_pindir);
w.set_jmp_pin(config.exec.jmp_pin);
w.set_out_en_sel(config.out_en_sel);
w.set_inline_out_en(config.inline_out_en);
w.set_out_sticky(config.out_sticky);
w.set_wrap_top(config.exec.wrap_top);
w.set_wrap_bottom(config.exec.wrap_bottom);
w.set_status_sel(match config.status_sel {
StatusSource::TxFifoLevel => SmExecctrlStatusSel::TXLEVEL,
StatusSource::RxFifoLevel => SmExecctrlStatusSel::RXLEVEL,
});
w.set_status_n(config.status_n);
sm.clkdiv().write(|w| w.0 = config.clock_divider.to_bits() << 8);
sm.execctrl().write(|w| {
w.set_side_en(config.exec.side_en);
w.set_side_pindir(config.exec.side_pindir);
w.set_jmp_pin(config.exec.jmp_pin);
w.set_out_en_sel(config.out_en_sel);
w.set_inline_out_en(config.inline_out_en);
w.set_out_sticky(config.out_sticky);
w.set_wrap_top(config.exec.wrap_top);
w.set_wrap_bottom(config.exec.wrap_bottom);
w.set_status_sel(match config.status_sel {
StatusSource::TxFifoLevel => SmExecctrlStatusSel::TXLEVEL,
StatusSource::RxFifoLevel => SmExecctrlStatusSel::RXLEVEL,
});
sm.shiftctrl().write(|w| {
w.set_fjoin_rx(config.fifo_join == FifoJoin::RxOnly);
w.set_fjoin_tx(config.fifo_join == FifoJoin::TxOnly);
w.set_pull_thresh(config.shift_out.threshold);
w.set_push_thresh(config.shift_in.threshold);
w.set_out_shiftdir(config.shift_out.direction == ShiftDirection::Right);
w.set_in_shiftdir(config.shift_in.direction == ShiftDirection::Right);
w.set_autopull(config.shift_out.auto_fill);
w.set_autopush(config.shift_in.auto_fill);
});
sm.pinctrl().write(|w| {
w.set_sideset_count(config.pins.sideset_count);
w.set_set_count(config.pins.set_count);
w.set_out_count(config.pins.out_count);
w.set_in_base(config.pins.in_base);
w.set_sideset_base(config.pins.sideset_base);
w.set_set_base(config.pins.set_base);
w.set_out_base(config.pins.out_base);
});
if let Some(origin) = config.origin {
pio_instr_util::exec_jmp(self, origin);
}
w.set_status_n(config.status_n);
});
sm.shiftctrl().write(|w| {
w.set_fjoin_rx(config.fifo_join == FifoJoin::RxOnly);
w.set_fjoin_tx(config.fifo_join == FifoJoin::TxOnly);
w.set_pull_thresh(config.shift_out.threshold);
w.set_push_thresh(config.shift_in.threshold);
w.set_out_shiftdir(config.shift_out.direction == ShiftDirection::Right);
w.set_in_shiftdir(config.shift_in.direction == ShiftDirection::Right);
w.set_autopull(config.shift_out.auto_fill);
w.set_autopush(config.shift_in.auto_fill);
});
sm.pinctrl().write(|w| {
w.set_sideset_count(config.pins.sideset_count);
w.set_set_count(config.pins.set_count);
w.set_out_count(config.pins.out_count);
w.set_in_base(config.pins.in_base);
w.set_sideset_base(config.pins.sideset_base);
w.set_set_base(config.pins.set_base);
w.set_out_base(config.pins.out_base);
});
if let Some(origin) = config.origin {
unsafe { pio_instr_util::exec_jmp(self, origin) }
}
}
@ -696,45 +654,35 @@ impl<'d, PIO: Instance + 'd, const SM: usize> StateMachine<'d, PIO, SM> {
pub fn restart(&mut self) {
let mask = 1u8 << SM;
unsafe {
PIO::PIO.ctrl().write_set(|w| w.set_sm_restart(mask));
}
PIO::PIO.ctrl().write_set(|w| w.set_sm_restart(mask));
}
pub fn set_enable(&mut self, enable: bool) {
let mask = 1u8 << SM;
unsafe {
if enable {
PIO::PIO.ctrl().write_set(|w| w.set_sm_enable(mask));
} else {
PIO::PIO.ctrl().write_clear(|w| w.set_sm_enable(mask));
}
if enable {
PIO::PIO.ctrl().write_set(|w| w.set_sm_enable(mask));
} else {
PIO::PIO.ctrl().write_clear(|w| w.set_sm_enable(mask));
}
}
pub fn is_enabled(&self) -> bool {
unsafe { PIO::PIO.ctrl().read().sm_enable() & (1u8 << SM) != 0 }
PIO::PIO.ctrl().read().sm_enable() & (1u8 << SM) != 0
}
pub fn clkdiv_restart(&mut self) {
let mask = 1u8 << SM;
unsafe {
PIO::PIO.ctrl().write_set(|w| w.set_clkdiv_restart(mask));
}
PIO::PIO.ctrl().write_set(|w| w.set_clkdiv_restart(mask));
}
fn with_paused(&mut self, f: impl FnOnce(&mut Self)) {
let enabled = self.is_enabled();
self.set_enable(false);
let pincfg = unsafe { Self::this_sm().pinctrl().read() };
let execcfg = unsafe { Self::this_sm().execctrl().read() };
unsafe {
Self::this_sm().execctrl().write_clear(|w| w.set_out_sticky(true));
}
let pincfg = Self::this_sm().pinctrl().read();
let execcfg = Self::this_sm().execctrl().read();
Self::this_sm().execctrl().write_clear(|w| w.set_out_sticky(true));
f(self);
unsafe {
Self::this_sm().pinctrl().write_value(pincfg);
Self::this_sm().execctrl().write_value(execcfg);
}
Self::this_sm().pinctrl().write_value(pincfg);
Self::this_sm().execctrl().write_value(execcfg);
self.set_enable(enabled);
}
@ -743,14 +691,12 @@ impl<'d, PIO: Instance + 'd, const SM: usize> StateMachine<'d, PIO, SM> {
pub fn set_pin_dirs(&mut self, dir: Direction, pins: &[&Pin<'d, PIO>]) {
self.with_paused(|sm| {
for pin in pins {
unsafe {
Self::this_sm().pinctrl().write(|w| {
w.set_set_base(pin.pin());
w.set_set_count(1);
});
// SET PINDIRS, (dir)
sm.exec_instr(0b111_00000_100_00000 | dir as u16);
}
Self::this_sm().pinctrl().write(|w| {
w.set_set_base(pin.pin());
w.set_set_count(1);
});
// SET PINDIRS, (dir)
unsafe { sm.exec_instr(0b111_00000_100_00000 | dir as u16) };
}
});
}
@ -760,29 +706,25 @@ impl<'d, PIO: Instance + 'd, const SM: usize> StateMachine<'d, PIO, SM> {
pub fn set_pins(&mut self, level: Level, pins: &[&Pin<'d, PIO>]) {
self.with_paused(|sm| {
for pin in pins {
unsafe {
Self::this_sm().pinctrl().write(|w| {
w.set_set_base(pin.pin());
w.set_set_count(1);
});
// SET PINS, (dir)
sm.exec_instr(0b111_00000_000_00000 | level as u16);
}
Self::this_sm().pinctrl().write(|w| {
w.set_set_base(pin.pin());
w.set_set_count(1);
});
// SET PINS, (dir)
unsafe { sm.exec_instr(0b111_00000_000_00000 | level as u16) };
}
});
}
pub fn clear_fifos(&mut self) {
// Toggle FJOIN_RX to flush FIFOs
unsafe {
let shiftctrl = Self::this_sm().shiftctrl();
shiftctrl.modify(|w| {
w.set_fjoin_rx(!w.fjoin_rx());
});
shiftctrl.modify(|w| {
w.set_fjoin_rx(!w.fjoin_rx());
});
}
let shiftctrl = Self::this_sm().shiftctrl();
shiftctrl.modify(|w| {
w.set_fjoin_rx(!w.fjoin_rx());
});
shiftctrl.modify(|w| {
w.set_fjoin_rx(!w.fjoin_rx());
});
}
pub unsafe fn exec_instr(&mut self, instr: u16) {
@ -856,11 +798,9 @@ impl<'d, PIO: Instance> Common<'d, PIO> {
if (self.instructions_used | used_mask) & mask != 0 {
return Err(addr);
}
unsafe {
PIO::PIO.instr_mem(addr).write(|w| {
w.set_instr_mem(instr);
});
}
PIO::PIO.instr_mem(addr).write(|w| {
w.set_instr_mem(instr);
});
used_mask |= mask;
}
self.instructions_used |= used_mask;
@ -877,17 +817,15 @@ impl<'d, PIO: Instance> Common<'d, PIO> {
}
pub fn set_input_sync_bypass<'a>(&'a mut self, bypass: u32, mask: u32) {
unsafe {
// this can interfere with per-pin bypass functions. splitting the
// modification is going to be fine since nothing that relies on
// it can reasonably run before we finish.
PIO::PIO.input_sync_bypass().write_set(|w| *w = mask & bypass);
PIO::PIO.input_sync_bypass().write_clear(|w| *w = mask & !bypass);
}
// this can interfere with per-pin bypass functions. splitting the
// modification is going to be fine since nothing that relies on
// it can reasonably run before we finish.
PIO::PIO.input_sync_bypass().write_set(|w| *w = mask & bypass);
PIO::PIO.input_sync_bypass().write_clear(|w| *w = mask & !bypass);
}
pub fn get_input_sync_bypass(&self) -> u32 {
unsafe { PIO::PIO.input_sync_bypass().read() }
PIO::PIO.input_sync_bypass().read()
}
/// Register a pin for PIO usage. Pins will be released from the PIO block
@ -896,9 +834,7 @@ impl<'d, PIO: Instance> Common<'d, PIO> {
/// of [`Pio`] do not keep pin registrations alive.**
pub fn make_pio_pin(&mut self, pin: impl Peripheral<P = impl PioPin + 'd> + 'd) -> Pin<'d, PIO> {
into_ref!(pin);
unsafe {
pin.io().ctrl().write(|w| w.set_funcsel(PIO::FUNCSEL.0));
}
pin.io().ctrl().write(|w| w.set_funcsel(PIO::FUNCSEL.0));
// we can be relaxed about this because we're &mut here and nothing is cached
PIO::state().used_pins.fetch_or(1 << pin.pin_bank(), Ordering::Relaxed);
Pin {
@ -916,13 +852,11 @@ impl<'d, PIO: Instance> Common<'d, PIO> {
_pio: PhantomData,
};
f(&mut batch);
unsafe {
PIO::PIO.ctrl().modify(|w| {
w.set_clkdiv_restart(batch.clkdiv_restart);
w.set_sm_restart(batch.sm_restart);
w.set_sm_enable((w.sm_enable() & !batch.sm_enable_mask) | batch.sm_enable);
});
}
PIO::PIO.ctrl().modify(|w| {
w.set_clkdiv_restart(batch.clkdiv_restart);
w.set_sm_restart(batch.sm_restart);
w.set_sm_enable((w.sm_enable() & !batch.sm_enable_mask) | batch.sm_enable);
});
}
}
@ -974,11 +908,11 @@ impl<'d, PIO: Instance> IrqFlags<'d, PIO> {
}
pub fn check_any(&self, irqs: u8) -> bool {
unsafe { PIO::PIO.irq().read().irq() & irqs != 0 }
PIO::PIO.irq().read().irq() & irqs != 0
}
pub fn check_all(&self, irqs: u8) -> bool {
unsafe { PIO::PIO.irq().read().irq() & irqs == irqs }
PIO::PIO.irq().read().irq() & irqs == irqs
}
pub fn clear(&self, irq_no: usize) {
@ -987,7 +921,7 @@ impl<'d, PIO: Instance> IrqFlags<'d, PIO> {
}
pub fn clear_all(&self, irqs: u8) {
unsafe { PIO::PIO.irq().write(|w| w.set_irq(irqs)) }
PIO::PIO.irq().write(|w| w.set_irq(irqs))
}
pub fn set(&self, irq_no: usize) {
@ -996,7 +930,7 @@ impl<'d, PIO: Instance> IrqFlags<'d, PIO> {
}
pub fn set_all(&self, irqs: u8) {
unsafe { PIO::PIO.irq_force().write(|w| w.set_irq_force(irqs)) }
PIO::PIO.irq_force().write(|w| w.set_irq_force(irqs))
}
}
@ -1068,9 +1002,7 @@ fn on_pio_drop<PIO: Instance>() {
// we only have 30 pins. don't test the other two since gpio() asserts.
for i in 0..30 {
if used_pins & (1 << i) != 0 {
unsafe {
pac::IO_BANK0.gpio(i).ctrl().write(|w| w.set_funcsel(null));
}
pac::IO_BANK0.gpio(i).ctrl().write(|w| w.set_funcsel(null));
}
}
}

88
embassy-rp/src/pwm.rs
View file

@ -71,20 +71,18 @@ impl<'d, T: Channel> Pwm<'d, T> {
into_ref!(inner);
let p = inner.regs();
unsafe {
p.csr().modify(|w| {
w.set_divmode(divmode);
w.set_en(false);
});
p.ctr().write(|w| w.0 = 0);
Self::configure(p, &config);
p.csr().modify(|w| {
w.set_divmode(divmode);
w.set_en(false);
});
p.ctr().write(|w| w.0 = 0);
Self::configure(p, &config);
if let Some(pin) = &a {
pin.io().ctrl().write(|w| w.set_funcsel(4));
}
if let Some(pin) = &b {
pin.io().ctrl().write(|w| w.set_funcsel(4));
}
if let Some(pin) = &a {
pin.io().ctrl().write(|w| w.set_funcsel(4));
}
if let Some(pin) = &b {
pin.io().ctrl().write(|w| w.set_funcsel(4));
}
Self {
inner,
@ -161,31 +159,29 @@ impl<'d, T: Channel> Pwm<'d, T> {
panic!("Requested divider is too large");
}
unsafe {
p.div().write_value(ChDiv(config.divider.to_bits() as u32));
p.cc().write(|w| {
w.set_a(config.compare_a);
w.set_b(config.compare_b);
});
p.top().write(|w| w.set_top(config.top));
p.csr().modify(|w| {
w.set_a_inv(config.invert_a);
w.set_b_inv(config.invert_b);
w.set_ph_correct(config.phase_correct);
w.set_en(config.enable);
});
}
p.div().write_value(ChDiv(config.divider.to_bits() as u32));
p.cc().write(|w| {
w.set_a(config.compare_a);
w.set_b(config.compare_b);
});
p.top().write(|w| w.set_top(config.top));
p.csr().modify(|w| {
w.set_a_inv(config.invert_a);
w.set_b_inv(config.invert_b);
w.set_ph_correct(config.phase_correct);
w.set_en(config.enable);
});
}
#[inline]
pub unsafe fn phase_advance(&mut self) {
pub fn phase_advance(&mut self) {
let p = self.inner.regs();
p.csr().write_set(|w| w.set_ph_adv(true));
while p.csr().read().ph_adv() {}
}
#[inline]
pub unsafe fn phase_retard(&mut self) {
pub fn phase_retard(&mut self) {
let p = self.inner.regs();
p.csr().write_set(|w| w.set_ph_ret(true));
while p.csr().read().ph_ret() {}
@ -193,12 +189,12 @@ impl<'d, T: Channel> Pwm<'d, T> {
#[inline]
pub fn counter(&self) -> u16 {
unsafe { self.inner.regs().ctr().read().ctr() }
self.inner.regs().ctr().read().ctr()
}
#[inline]
pub fn set_counter(&self, ctr: u16) {
unsafe { self.inner.regs().ctr().write(|w| w.set_ctr(ctr)) }
self.inner.regs().ctr().write(|w| w.set_ctr(ctr))
}
#[inline]
@ -209,14 +205,12 @@ impl<'d, T: Channel> Pwm<'d, T> {
#[inline]
pub fn wrapped(&mut self) -> bool {
unsafe { pac::PWM.intr().read().0 & self.bit() != 0 }
pac::PWM.intr().read().0 & self.bit() != 0
}
#[inline]
pub fn clear_wrapped(&mut self) {
unsafe {
pac::PWM.intr().write_value(Intr(self.bit() as _));
}
pac::PWM.intr().write_value(Intr(self.bit() as _));
}
#[inline]
@ -237,26 +231,22 @@ impl PwmBatch {
pub fn set_enabled(enabled: bool, batch: impl FnOnce(&mut PwmBatch)) {
let mut en = PwmBatch(0);
batch(&mut en);
unsafe {
if enabled {
pac::PWM.en().write_set(|w| w.0 = en.0);
} else {
pac::PWM.en().write_clear(|w| w.0 = en.0);
}
if enabled {
pac::PWM.en().write_set(|w| w.0 = en.0);
} else {
pac::PWM.en().write_clear(|w| w.0 = en.0);
}
}
}
impl<'d, T: Channel> Drop for Pwm<'d, T> {
fn drop(&mut self) {
unsafe {
self.inner.regs().csr().write_clear(|w| w.set_en(false));
if let Some(pin) = &self.pin_a {
pin.io().ctrl().write(|w| w.set_funcsel(31));
}
if let Some(pin) = &self.pin_b {
pin.io().ctrl().write(|w| w.set_funcsel(31));
}
self.inner.regs().csr().write_clear(|w| w.set_en(false));
if let Some(pin) = &self.pin_a {
pin.io().ctrl().write(|w| w.set_funcsel(31));
}
if let Some(pin) = &self.pin_b {
pin.io().ctrl().write(|w| w.set_funcsel(31));
}
}
}

4
embassy-rp/src/reset.rs
View file

@ -4,11 +4,11 @@ use crate::pac;
pub const ALL_PERIPHERALS: Peripherals = Peripherals(0x01ffffff);
pub unsafe fn reset(peris: Peripherals) {
pub(crate) fn reset(peris: Peripherals) {
pac::RESETS.reset().write_value(peris);
}
pub unsafe fn unreset_wait(peris: Peripherals) {
pub(crate) fn unreset_wait(peris: Peripherals) {
// TODO use the "atomic clear" register version
pac::RESETS.reset().modify(|v| *v = Peripherals(v.0 & !peris.0));
while ((!pac::RESETS.reset_done().read().0) & peris.0) != 0 {}

81
embassy-rp/src/rtc/mod.rs
View file

@ -26,7 +26,7 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
into_ref!(inner);
// Set the RTC divider
unsafe { inner.regs().clkdiv_m1().write(|w| w.set_clkdiv_m1(clk_rtc_freq() - 1)) };
inner.regs().clkdiv_m1().write(|w| w.set_clkdiv_m1(clk_rtc_freq() - 1));
let mut result = Self { inner };
result.set_leap_year_check(true); // should be on by default, make sure this is the case.
@ -38,17 +38,14 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
///
/// Leap year checking is enabled by default.
pub fn set_leap_year_check(&mut self, leap_year_check_enabled: bool) {
unsafe {
self.inner
.regs()
.ctrl()
.modify(|w| w.set_force_notleapyear(!leap_year_check_enabled))
};
self.inner.regs().ctrl().modify(|w| {
w.set_force_notleapyear(!leap_year_check_enabled);
});
}
/// Checks to see if this RealTimeClock is running
pub fn is_running(&self) -> bool {
unsafe { self.inner.regs().ctrl().read().rtc_active() }
self.inner.regs().ctrl().read().rtc_active()
}
/// Set the datetime to a new value.
@ -60,25 +57,23 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
self::datetime::validate_datetime(&t).map_err(RtcError::InvalidDateTime)?;
// disable RTC while we configure it
unsafe {
self.inner.regs().ctrl().modify(|w| w.set_rtc_enable(false));
while self.inner.regs().ctrl().read().rtc_active() {
core::hint::spin_loop();
}
self.inner.regs().ctrl().modify(|w| w.set_rtc_enable(false));
while self.inner.regs().ctrl().read().rtc_active() {
core::hint::spin_loop();
}
self.inner.regs().setup_0().write(|w| {
self::datetime::write_setup_0(&t, w);
});
self.inner.regs().setup_1().write(|w| {
self::datetime::write_setup_1(&t, w);
});
self.inner.regs().setup_0().write(|w| {
self::datetime::write_setup_0(&t, w);
});
self.inner.regs().setup_1().write(|w| {
self::datetime::write_setup_1(&t, w);
});
// Load the new datetime and re-enable RTC
self.inner.regs().ctrl().write(|w| w.set_load(true));
self.inner.regs().ctrl().write(|w| w.set_rtc_enable(true));
while !self.inner.regs().ctrl().read().rtc_active() {
core::hint::spin_loop();
}
// Load the new datetime and re-enable RTC
self.inner.regs().ctrl().write(|w| w.set_load(true));
self.inner.regs().ctrl().write(|w| w.set_rtc_enable(true));
while !self.inner.regs().ctrl().read().rtc_active() {
core::hint::spin_loop();
}
Ok(())
}
@ -93,8 +88,8 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
return Err(RtcError::NotRunning);
}
let rtc_0 = unsafe { self.inner.regs().rtc_0().read() };
let rtc_1 = unsafe { self.inner.regs().rtc_1().read() };
let rtc_0 = self.inner.regs().rtc_0().read();
let rtc_1 = self.inner.regs().rtc_1().read();
self::datetime::datetime_from_registers(rtc_0, rtc_1).map_err(RtcError::InvalidDateTime)
}
@ -103,12 +98,10 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
///
/// [`schedule_alarm`]: #method.schedule_alarm
pub fn disable_alarm(&mut self) {
unsafe {
self.inner.regs().irq_setup_0().modify(|s| s.set_match_ena(false));
self.inner.regs().irq_setup_0().modify(|s| s.set_match_ena(false));
while self.inner.regs().irq_setup_0().read().match_active() {
core::hint::spin_loop();
}
while self.inner.regs().irq_setup_0().read().match_active() {
core::hint::spin_loop();
}
}
@ -132,21 +125,19 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
pub fn schedule_alarm(&mut self, filter: DateTimeFilter) {
self.disable_alarm();
unsafe {
self.inner.regs().irq_setup_0().write(|w| {
filter.write_setup_0(w);
});
self.inner.regs().irq_setup_1().write(|w| {
filter.write_setup_1(w);
});
self.inner.regs().irq_setup_0().write(|w| {
filter.write_setup_0(w);
});
self.inner.regs().irq_setup_1().write(|w| {
filter.write_setup_1(w);
});
self.inner.regs().inte().modify(|w| w.set_rtc(true));
self.inner.regs().inte().modify(|w| w.set_rtc(true));
// Set the enable bit and check if it is set
self.inner.regs().irq_setup_0().modify(|w| w.set_match_ena(true));
while !self.inner.regs().irq_setup_0().read().match_active() {
core::hint::spin_loop();
}
// Set the enable bit and check if it is set
self.inner.regs().irq_setup_0().modify(|w| w.set_match_ena(true));
while !self.inner.regs().irq_setup_0().read().match_active() {
core::hint::spin_loop();
}
}

244
embassy-rp/src/spi.rs
View file

@ -79,33 +79,37 @@ impl<'d, T: Instance, M: Mode> Spi<'d, T, M> {
) -> Self {
into_ref!(inner);
unsafe {
let p = inner.regs();
let (presc, postdiv) = calc_prescs(config.frequency);
let p = inner.regs();
let (presc, postdiv) = calc_prescs(config.frequency);
p.cpsr().write(|w| w.set_cpsdvsr(presc));
p.cr0().write(|w| {
w.set_dss(0b0111); // 8bit
w.set_spo(config.polarity == Polarity::IdleHigh);
w.set_sph(config.phase == Phase::CaptureOnSecondTransition);
w.set_scr(postdiv);
});
p.cr1().write(|w| {
w.set_sse(true); // enable
});
p.cpsr().write(|w| w.set_cpsdvsr(presc));
p.cr0().write(|w| {
w.set_dss(0b0111); // 8bit
w.set_spo(config.polarity == Polarity::IdleHigh);
w.set_sph(config.phase == Phase::CaptureOnSecondTransition);
w.set_scr(postdiv);
});
if let Some(pin) = &clk {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
if let Some(pin) = &mosi {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
if let Some(pin) = &miso {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
if let Some(pin) = &cs {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
// Always enable DREQ signals -- harmless if DMA is not listening
p.dmacr().write(|reg| {
reg.set_rxdmae(true);
reg.set_txdmae(true);
});
// finally, enable.
p.cr1().write(|w| w.set_sse(true));
if let Some(pin) = &clk {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
if let Some(pin) = &mosi {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
if let Some(pin) = &miso {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
if let Some(pin) = &cs {
pin.io().ctrl().write(|w| w.set_funcsel(1));
}
Self {
inner,
@ -116,60 +120,52 @@ impl<'d, T: Instance, M: Mode> Spi<'d, T, M> {
}
pub fn blocking_write(&mut self, data: &[u8]) -> Result<(), Error> {
unsafe {
let p = self.inner.regs();
for &b in data {
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(b as _));
while !p.sr().read().rne() {}
let _ = p.dr().read();
}
let p = self.inner.regs();
for &b in data {
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(b as _));
while !p.sr().read().rne() {}
let _ = p.dr().read();
}
self.flush()?;
Ok(())
}
pub fn blocking_transfer_in_place(&mut self, data: &mut [u8]) -> Result<(), Error> {
unsafe {
let p = self.inner.regs();
for b in data {
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(*b as _));
while !p.sr().read().rne() {}
*b = p.dr().read().data() as u8;
}
let p = self.inner.regs();
for b in data {
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(*b as _));
while !p.sr().read().rne() {}
*b = p.dr().read().data() as u8;
}
self.flush()?;
Ok(())
}
pub fn blocking_read(&mut self, data: &mut [u8]) -> Result<(), Error> {
unsafe {
let p = self.inner.regs();
for b in data {
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(0));
while !p.sr().read().rne() {}
*b = p.dr().read().data() as u8;
}
let p = self.inner.regs();
for b in data {
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(0));
while !p.sr().read().rne() {}
*b = p.dr().read().data() as u8;
}
self.flush()?;
Ok(())
}
pub fn blocking_transfer(&mut self, read: &mut [u8], write: &[u8]) -> Result<(), Error> {
unsafe {
let p = self.inner.regs();
let len = read.len().max(write.len());
for i in 0..len {
let wb = write.get(i).copied().unwrap_or(0);
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(wb as _));
while !p.sr().read().rne() {}
let rb = p.dr().read().data() as u8;
if let Some(r) = read.get_mut(i) {
*r = rb;
}
let p = self.inner.regs();
let len = read.len().max(write.len());
for i in 0..len {
let wb = write.get(i).copied().unwrap_or(0);
while !p.sr().read().tnf() {}
p.dr().write(|w| w.set_data(wb as _));
while !p.sr().read().rne() {}
let rb = p.dr().read().data() as u8;
if let Some(r) = read.get_mut(i) {
*r = rb;
}
}
self.flush()?;
@ -177,29 +173,25 @@ impl<'d, T: Instance, M: Mode> Spi<'d, T, M> {
}
pub fn flush(&mut self) -> Result<(), Error> {
unsafe {
let p = self.inner.regs();
while p.sr().read().bsy() {}
}
let p = self.inner.regs();
while p.sr().read().bsy() {}
Ok(())
}
pub fn set_frequency(&mut self, freq: u32) {
let (presc, postdiv) = calc_prescs(freq);
let p = self.inner.regs();
unsafe {
// disable
p.cr1().write(|w| w.set_sse(false));
// disable
p.cr1().write(|w| w.set_sse(false));
// change stuff
p.cpsr().write(|w| w.set_cpsdvsr(presc));
p.cr0().modify(|w| {
w.set_scr(postdiv);
});
// change stuff
p.cpsr().write(|w| w.set_cpsdvsr(presc));
p.cr0().modify(|w| {
w.set_scr(postdiv);
});
// enable
p.cr1().write(|w| w.set_sse(true));
}
// enable
p.cr1().write(|w| w.set_sse(true));
}
}
@ -329,48 +321,45 @@ impl<'d, T: Instance> Spi<'d, T, Async> {
pub async fn write(&mut self, buffer: &[u8]) -> Result<(), Error> {
let tx_ch = self.tx_dma.as_mut().unwrap();
let tx_transfer = unsafe {
self.inner.regs().dmacr().modify(|reg| {
reg.set_txdmae(true);
});
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::write(tx_ch, buffer, self.inner.regs().dr().ptr() as *mut _, T::TX_DREQ)
crate::dma::write(tx_ch, buffer, self.inner.regs().dr().as_ptr() as *mut _, T::TX_DREQ)
};
tx_transfer.await;
let p = self.inner.regs();
unsafe {
while p.sr().read().bsy() {}
while p.sr().read().bsy() {}
// clear RX FIFO contents to prevent stale reads
while p.sr().read().rne() {
let _: u16 = p.dr().read().data();
}
// clear RX overrun interrupt
p.icr().write(|w| w.set_roric(true));
// clear RX FIFO contents to prevent stale reads
while p.sr().read().rne() {
let _: u16 = p.dr().read().data();
}
// clear RX overrun interrupt
p.icr().write(|w| w.set_roric(true));
Ok(())
}
pub async fn read(&mut self, buffer: &mut [u8]) -> Result<(), Error> {
unsafe {
self.inner.regs().dmacr().write(|reg| {
reg.set_rxdmae(true);
reg.set_txdmae(true);
})
};
let tx_ch = self.tx_dma.as_mut().unwrap();
let tx_transfer = unsafe {
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::write_repeated(tx_ch, self.inner.regs().dr().ptr() as *mut u8, buffer.len(), T::TX_DREQ)
};
// Start RX first. Transfer starts when TX starts, if RX
// is not started yet we might lose bytes.
let rx_ch = self.rx_dma.as_mut().unwrap();
let rx_transfer = unsafe {
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::read(rx_ch, self.inner.regs().dr().ptr() as *const _, buffer, T::RX_DREQ)
crate::dma::read(rx_ch, self.inner.regs().dr().as_ptr() as *const _, buffer, T::RX_DREQ)
};
let tx_ch = self.tx_dma.as_mut().unwrap();
let tx_transfer = unsafe {
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::write_repeated(
tx_ch,
self.inner.regs().dr().as_ptr() as *mut u8,
buffer.len(),
T::TX_DREQ,
)
};
join(tx_transfer, rx_transfer).await;
Ok(())
@ -388,11 +377,13 @@ impl<'d, T: Instance> Spi<'d, T, Async> {
let (_, tx_len) = crate::dma::slice_ptr_parts(tx_ptr);
let (_, rx_len) = crate::dma::slice_ptr_parts_mut(rx_ptr);
unsafe {
self.inner.regs().dmacr().write(|reg| {
reg.set_rxdmae(true);
reg.set_txdmae(true);
})
// Start RX first. Transfer starts when TX starts, if RX
// is not started yet we might lose bytes.
let rx_ch = self.rx_dma.as_mut().unwrap();
let rx_transfer = unsafe {
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::read(rx_ch, self.inner.regs().dr().as_ptr() as *const _, rx_ptr, T::RX_DREQ)
};
let mut tx_ch = self.tx_dma.as_mut().unwrap();
@ -401,38 +392,29 @@ impl<'d, T: Instance> Spi<'d, T, Async> {
let tx_transfer = async {
let p = self.inner.regs();
unsafe {
crate::dma::write(&mut tx_ch, tx_ptr, p.dr().ptr() as *mut _, T::TX_DREQ).await;
crate::dma::write(&mut tx_ch, tx_ptr, p.dr().as_ptr() as *mut _, T::TX_DREQ).await;
if rx_len > tx_len {
let write_bytes_len = rx_len - tx_len;
// write dummy data
// this will disable incrementation of the buffers
crate::dma::write_repeated(tx_ch, p.dr().ptr() as *mut u8, write_bytes_len, T::TX_DREQ).await
crate::dma::write_repeated(tx_ch, p.dr().as_ptr() as *mut u8, write_bytes_len, T::TX_DREQ).await
}
}
};
let rx_ch = self.rx_dma.as_mut().unwrap();
let rx_transfer = unsafe {
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::read(rx_ch, self.inner.regs().dr().ptr() as *const _, rx_ptr, T::RX_DREQ)
};
join(tx_transfer, rx_transfer).await;
// if tx > rx we should clear any overflow of the FIFO SPI buffer
if tx_len > rx_len {
let p = self.inner.regs();
unsafe {
while p.sr().read().bsy() {}
while p.sr().read().bsy() {}
// clear RX FIFO contents to prevent stale reads
while p.sr().read().rne() {
let _: u16 = p.dr().read().data();
}
// clear RX overrun interrupt
p.icr().write(|w| w.set_roric(true));
// clear RX FIFO contents to prevent stale reads
while p.sr().read().rne() {
let _: u16 = p.dr().read().data();
}
// clear RX overrun interrupt
p.icr().write(|w| w.set_roric(true));
}
Ok(())
@ -630,14 +612,12 @@ impl<'d, T: Instance, M: Mode> SetConfig for Spi<'d, T, M> {
fn set_config(&mut self, config: &Self::Config) {
let p = self.inner.regs();
let (presc, postdiv) = calc_prescs(config.frequency);
unsafe {
p.cpsr().write(|w| w.set_cpsdvsr(presc));
p.cr0().write(|w| {
w.set_dss(0b0111); // 8bit
w.set_spo(config.polarity == Polarity::IdleHigh);
w.set_sph(config.phase == Phase::CaptureOnSecondTransition);
w.set_scr(postdiv);
});
}
p.cpsr().write(|w| w.set_cpsdvsr(presc));
p.cr0().write(|w| {
w.set_dss(0b0111); // 8bit
w.set_spo(config.polarity == Polarity::IdleHigh);
w.set_sph(config.phase == Phase::CaptureOnSecondTransition);
w.set_scr(postdiv);
});
}
}

44
embassy-rp/src/timer.rs
View file

@ -6,7 +6,7 @@ use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
use embassy_sync::blocking_mutex::Mutex;
use embassy_time::driver::{AlarmHandle, Driver};
use crate::interrupt::{Interrupt, InterruptExt};
use crate::interrupt::InterruptExt;
use crate::{interrupt, pac};
struct AlarmState {
@ -34,13 +34,11 @@ embassy_time::time_driver_impl!(static DRIVER: TimerDriver = TimerDriver{
impl Driver for TimerDriver {
fn now(&self) -> u64 {
loop {
unsafe {
let hi = pac::TIMER.timerawh().read();
let lo = pac::TIMER.timerawl().read();
let hi2 = pac::TIMER.timerawh().read();
if hi == hi2 {
return (hi as u64) << 32 | (lo as u64);
}
let hi = pac::TIMER.timerawh().read();
let lo = pac::TIMER.timerawl().read();
let hi2 = pac::TIMER.timerawh().read();
if hi == hi2 {
return (hi as u64) << 32 | (lo as u64);
}
}
}
@ -78,13 +76,13 @@ impl Driver for TimerDriver {
// Note that we're not checking the high bits at all. This means the irq may fire early
// if the alarm is more than 72 minutes (2^32 us) in the future. This is OK, since on irq fire
// it is checked if the alarm time has passed.
unsafe { pac::TIMER.alarm(n).write_value(timestamp as u32) };
pac::TIMER.alarm(n).write_value(timestamp as u32);
let now = self.now();
if timestamp <= now {
// If alarm timestamp has passed the alarm will not fire.
// Disarm the alarm and return `false` to indicate that.
unsafe { pac::TIMER.armed().write(|w| w.set_armed(1 << n)) }
pac::TIMER.armed().write(|w| w.set_armed(1 << n));
alarm.timestamp.set(u64::MAX);
@ -106,17 +104,17 @@ impl TimerDriver {
} else {
// Not elapsed, arm it again.
// This can happen if it was set more than 2^32 us in the future.
unsafe { pac::TIMER.alarm(n).write_value(timestamp as u32) };
pac::TIMER.alarm(n).write_value(timestamp as u32);
}
});
// clear the irq
unsafe { pac::TIMER.intr().write(|w| w.set_alarm(n, true)) }
pac::TIMER.intr().write(|w| w.set_alarm(n, true));
}
fn trigger_alarm(&self, n: usize, cs: CriticalSection) {
// disarm
unsafe { pac::TIMER.armed().write(|w| w.set_armed(1 << n)) }
pac::TIMER.armed().write(|w| w.set_armed(1 << n));
let alarm = &self.alarms.borrow(cs)[n];
alarm.timestamp.set(u64::MAX);
@ -145,28 +143,32 @@ pub unsafe fn init() {
w.set_alarm(2, true);
w.set_alarm(3, true);
});
interrupt::TIMER_IRQ_0::steal().enable();
interrupt::TIMER_IRQ_1::steal().enable();
interrupt::TIMER_IRQ_2::steal().enable();
interrupt::TIMER_IRQ_3::steal().enable();
interrupt::TIMER_IRQ_0.enable();
interrupt::TIMER_IRQ_1.enable();
interrupt::TIMER_IRQ_2.enable();
interrupt::TIMER_IRQ_3.enable();
}
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn TIMER_IRQ_0() {
fn TIMER_IRQ_0() {
DRIVER.check_alarm(0)
}
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn TIMER_IRQ_1() {
fn TIMER_IRQ_1() {
DRIVER.check_alarm(1)
}
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn TIMER_IRQ_2() {
fn TIMER_IRQ_2() {
DRIVER.check_alarm(2)
}
#[cfg(feature = "rt")]
#[interrupt]
unsafe fn TIMER_IRQ_3() {
fn TIMER_IRQ_3() {
DRIVER.check_alarm(3)
}

285
embassy-rp/src/uart/buffered.rs
View file

@ -3,14 +3,14 @@ use core::slice;
use core::task::Poll;
use atomic_polyfill::{AtomicU8, Ordering};
use embassy_cortex_m::interrupt::{self, Binding, Interrupt, InterruptExt};
use embassy_hal_common::atomic_ring_buffer::RingBuffer;
use embassy_sync::waitqueue::AtomicWaker;
use embassy_time::{Duration, Timer};
use super::*;
use crate::clocks::clk_peri_freq;
use crate::RegExt;
use crate::interrupt::typelevel::{Binding, Interrupt};
use crate::{interrupt, RegExt};
pub struct State {
tx_waker: AtomicWaker,
@ -73,16 +73,14 @@ pub(crate) fn init_buffers<'d, T: Instance + 'd>(
// we clear it after it happens. The downside is that the we manually have
// to pend the ISR when we want data transmission to start.
let regs = T::regs();
unsafe {
regs.uartimsc().write(|w| {
w.set_rxim(true);
w.set_rtim(true);
w.set_txim(true);
});
regs.uartimsc().write(|w| {
w.set_rxim(true);
w.set_rtim(true);
w.set_txim(true);
});
T::Interrupt::steal().unpend();
T::Interrupt::steal().enable();
};
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
}
impl<'d, T: Instance> BufferedUart<'d, T> {
@ -247,12 +245,10 @@ impl<'d, T: Instance> BufferedUartRx<'d, T> {
// (Re-)Enable the interrupt to receive more data in case it was
// disabled because the buffer was full or errors were detected.
let regs = T::regs();
unsafe {
regs.uartimsc().write_set(|w| {
w.set_rxim(true);
w.set_rtim(true);
});
}
regs.uartimsc().write_set(|w| {
w.set_rxim(true);
w.set_rtim(true);
});
Poll::Ready(result)
}
@ -299,12 +295,10 @@ impl<'d, T: Instance> BufferedUartRx<'d, T> {
// (Re-)Enable the interrupt to receive more data in case it was
// disabled because the buffer was full or errors were detected.
let regs = T::regs();
unsafe {
regs.uartimsc().write_set(|w| {
w.set_rxim(true);
w.set_rtim(true);
});
}
regs.uartimsc().write_set(|w| {
w.set_rxim(true);
w.set_rtim(true);
});
}
}
@ -362,7 +356,7 @@ impl<'d, T: Instance> BufferedUartTx<'d, T> {
// FIFO and the number of bytes drops below a threshold. When the
// FIFO was empty we have to manually pend the interrupt to shovel
// TX data from the buffer into the FIFO.
unsafe { T::Interrupt::steal() }.pend();
T::Interrupt::pend();
Poll::Ready(Ok(n))
})
}
@ -398,7 +392,7 @@ impl<'d, T: Instance> BufferedUartTx<'d, T> {
// FIFO and the number of bytes drops below a threshold. When the
// FIFO was empty we have to manually pend the interrupt to shovel
// TX data from the buffer into the FIFO.
unsafe { T::Interrupt::steal() }.pend();
T::Interrupt::pend();
return Ok(n);
}
}
@ -414,7 +408,7 @@ impl<'d, T: Instance> BufferedUartTx<'d, T> {
}
pub fn busy(&self) -> bool {
unsafe { T::regs().uartfr().read().busy() }
T::regs().uartfr().read().busy()
}
/// Assert a break condition after waiting for the transmit buffers to empty,
@ -426,42 +420,35 @@ impl<'d, T: Instance> BufferedUartTx<'d, T> {
/// for the transmit fifo to empty, which may take a while on slow links.
pub async fn send_break(&mut self, bits: u32) {
let regs = T::regs();
let bits = bits.max(unsafe {
let bits = bits.max({
let lcr = regs.uartlcr_h().read();
let width = lcr.wlen() as u32 + 5;
let parity = lcr.pen() as u32;
let stops = 1 + lcr.stp2() as u32;
2 * (1 + width + parity + stops)
});
let divx64 = unsafe {
((regs.uartibrd().read().baud_divint() as u32) << 6) + regs.uartfbrd().read().baud_divfrac() as u32
} as u64;
let divx64 = (((regs.uartibrd().read().baud_divint() as u32) << 6)
+ regs.uartfbrd().read().baud_divfrac() as u32) as u64;
let div_clk = clk_peri_freq() as u64 * 64;
let wait_usecs = (1_000_000 * bits as u64 * divx64 * 16 + div_clk - 1) / div_clk;
Self::flush().await.unwrap();
while self.busy() {}
unsafe {
regs.uartlcr_h().write_set(|w| w.set_brk(true));
}
regs.uartlcr_h().write_set(|w| w.set_brk(true));
Timer::after(Duration::from_micros(wait_usecs)).await;
unsafe {
regs.uartlcr_h().write_clear(|w| w.set_brk(true));
}
regs.uartlcr_h().write_clear(|w| w.set_brk(true));
}
}
impl<'d, T: Instance> Drop for BufferedUartRx<'d, T> {
fn drop(&mut self) {
let state = T::buffered_state();
unsafe {
state.rx_buf.deinit();
unsafe { state.rx_buf.deinit() }
// TX is inactive if the the buffer is not available.
// We can now unregister the interrupt handler
if state.tx_buf.len() == 0 {
T::Interrupt::steal().disable();
}
// TX is inactive if the the buffer is not available.
// We can now unregister the interrupt handler
if state.tx_buf.len() == 0 {
T::Interrupt::disable();
}
}
}
@ -469,14 +456,12 @@ impl<'d, T: Instance> Drop for BufferedUartRx<'d, T> {
impl<'d, T: Instance> Drop for BufferedUartTx<'d, T> {
fn drop(&mut self) {
let state = T::buffered_state();
unsafe {
state.tx_buf.deinit();
unsafe { state.tx_buf.deinit() }
// RX is inactive if the the buffer is not available.
// We can now unregister the interrupt handler
if state.rx_buf.len() == 0 {
T::Interrupt::steal().disable();
}
// RX is inactive if the the buffer is not available.
// We can now unregister the interrupt handler
if state.rx_buf.len() == 0 {
T::Interrupt::disable();
}
}
}
@ -485,7 +470,7 @@ pub struct BufferedInterruptHandler<T: Instance> {
_uart: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for BufferedInterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for BufferedInterruptHandler<T> {
unsafe fn on_interrupt() {
let r = T::regs();
if r.uartdmacr().read().rxdmae() {
@ -494,94 +479,92 @@ impl<T: Instance> interrupt::Handler<T::Interrupt> for BufferedInterruptHandler<
let s = T::buffered_state();
unsafe {
// Clear TX and error interrupt flags
// RX interrupt flags are cleared by reading from the FIFO.
let ris = r.uartris().read();
r.uarticr().write(|w| {
w.set_txic(ris.txris());
w.set_feic(ris.feris());
w.set_peic(ris.peris());
w.set_beic(ris.beris());
w.set_oeic(ris.oeris());
});
// Clear TX and error interrupt flags
// RX interrupt flags are cleared by reading from the FIFO.
let ris = r.uartris().read();
r.uarticr().write(|w| {
w.set_txic(ris.txris());
w.set_feic(ris.feris());
w.set_peic(ris.peris());
w.set_beic(ris.beris());
w.set_oeic(ris.oeris());
});
trace!("on_interrupt ris={:#X}", ris.0);
trace!("on_interrupt ris={:#X}", ris.0);
// Errors
if ris.feris() {
warn!("Framing error");
}
if ris.peris() {
warn!("Parity error");
}
if ris.beris() {
warn!("Break error");
}
if ris.oeris() {
warn!("Overrun error");
}
// RX
let mut rx_writer = s.rx_buf.writer();
let rx_buf = rx_writer.push_slice();
let mut n_read = 0;
let mut error = false;
for rx_byte in rx_buf {
if r.uartfr().read().rxfe() {
break;
}
let dr = r.uartdr().read();
if (dr.0 >> 8) != 0 {
s.rx_error.fetch_or((dr.0 >> 8) as u8, Ordering::Relaxed);
error = true;
// only fill the buffer with valid characters. the current character is fine
// if the error is an overrun, but if we add it to the buffer we'll report
// the overrun one character too late. drop it instead and pretend we were
// a bit slower at draining the rx fifo than we actually were.
// this is consistent with blocking uart error reporting.
break;
}
*rx_byte = dr.data();
n_read += 1;
}
if n_read > 0 {
rx_writer.push_done(n_read);
s.rx_waker.wake();
} else if error {
s.rx_waker.wake();
}
// Disable any further RX interrupts when the buffer becomes full or
// errors have occurred. This lets us buffer additional errors in the
// fifo without needing more error storage locations, and most applications
// will want to do a full reset of their uart state anyway once an error
// has happened.
if s.rx_buf.is_full() || error {
r.uartimsc().write_clear(|w| {
w.set_rxim(true);
w.set_rtim(true);
});
}
// TX
let mut tx_reader = s.tx_buf.reader();
let tx_buf = tx_reader.pop_slice();
let mut n_written = 0;
for tx_byte in tx_buf.iter_mut() {
if r.uartfr().read().txff() {
break;
}
r.uartdr().write(|w| w.set_data(*tx_byte));
n_written += 1;
}
if n_written > 0 {
tx_reader.pop_done(n_written);
s.tx_waker.wake();
}
// The TX interrupt only triggers once when the FIFO threshold is
// crossed. No need to disable it when the buffer becomes empty
// as it does re-trigger anymore once we have cleared it.
// Errors
if ris.feris() {
warn!("Framing error");
}
if ris.peris() {
warn!("Parity error");
}
if ris.beris() {
warn!("Break error");
}
if ris.oeris() {
warn!("Overrun error");
}
// RX
let mut rx_writer = unsafe { s.rx_buf.writer() };
let rx_buf = rx_writer.push_slice();
let mut n_read = 0;
let mut error = false;
for rx_byte in rx_buf {
if r.uartfr().read().rxfe() {
break;
}
let dr = r.uartdr().read();
if (dr.0 >> 8) != 0 {
s.rx_error.fetch_or((dr.0 >> 8) as u8, Ordering::Relaxed);
error = true;
// only fill the buffer with valid characters. the current character is fine
// if the error is an overrun, but if we add it to the buffer we'll report
// the overrun one character too late. drop it instead and pretend we were
// a bit slower at draining the rx fifo than we actually were.
// this is consistent with blocking uart error reporting.
break;
}
*rx_byte = dr.data();
n_read += 1;
}
if n_read > 0 {
rx_writer.push_done(n_read);
s.rx_waker.wake();
} else if error {
s.rx_waker.wake();
}
// Disable any further RX interrupts when the buffer becomes full or
// errors have occurred. This lets us buffer additional errors in the
// fifo without needing more error storage locations, and most applications
// will want to do a full reset of their uart state anyway once an error
// has happened.
if s.rx_buf.is_full() || error {
r.uartimsc().write_clear(|w| {
w.set_rxim(true);
w.set_rtim(true);
});
}
// TX
let mut tx_reader = unsafe { s.tx_buf.reader() };
let tx_buf = tx_reader.pop_slice();
let mut n_written = 0;
for tx_byte in tx_buf.iter_mut() {
if r.uartfr().read().txff() {
break;
}
r.uartdr().write(|w| w.set_data(*tx_byte));
n_written += 1;
}
if n_written > 0 {
tx_reader.pop_done(n_written);
s.tx_waker.wake();
}
// The TX interrupt only triggers once when the FIFO threshold is
// crossed. No need to disable it when the buffer becomes empty
// as it does re-trigger anymore once we have cleared it.
}
}
@ -695,24 +678,22 @@ mod eh02 {
fn read(&mut self) -> Result<u8, nb::Error<Self::Error>> {
let r = T::regs();
unsafe {
if r.uartfr().read().rxfe() {
return Err(nb::Error::WouldBlock);
}
if r.uartfr().read().rxfe() {
return Err(nb::Error::WouldBlock);
}
let dr = r.uartdr().read();
let dr = r.uartdr().read();
if dr.oe() {
Err(nb::Error::Other(Error::Overrun))
} else if dr.be() {
Err(nb::Error::Other(Error::Break))
} else if dr.pe() {
Err(nb::Error::Other(Error::Parity))
} else if dr.fe() {
Err(nb::Error::Other(Error::Framing))
} else {
Ok(dr.data())
}
if dr.oe() {
Err(nb::Error::Other(Error::Overrun))
} else if dr.be() {
Err(nb::Error::Other(Error::Break))
} else if dr.pe() {
Err(nb::Error::Other(Error::Parity))
} else if dr.fe() {
Err(nb::Error::Other(Error::Framing))
} else {
Ok(dr.data())
}
}
}

335
embassy-rp/src/uart/mod.rs
View file

@ -3,7 +3,6 @@ use core::marker::PhantomData;
use core::task::Poll;
use atomic_polyfill::{AtomicU16, Ordering};
use embassy_cortex_m::interrupt::{self, Binding, Interrupt, InterruptExt};
use embassy_futures::select::{select, Either};
use embassy_hal_common::{into_ref, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
@ -14,8 +13,9 @@ use crate::clocks::clk_peri_freq;
use crate::dma::{AnyChannel, Channel};
use crate::gpio::sealed::Pin;
use crate::gpio::AnyPin;
use crate::interrupt::typelevel::{Binding, Interrupt};
use crate::pac::io::vals::{Inover, Outover};
use crate::{pac, peripherals, Peripheral, RegExt};
use crate::{interrupt, pac, peripherals, Peripheral, RegExt};
#[cfg(feature = "nightly")]
mod buffered;
@ -146,23 +146,21 @@ impl<'d, T: Instance, M: Mode> UartTx<'d, T, M> {
pub fn blocking_write(&mut self, buffer: &[u8]) -> Result<(), Error> {
let r = T::regs();
unsafe {
for &b in buffer {
while r.uartfr().read().txff() {}
r.uartdr().write(|w| w.set_data(b));
}
for &b in buffer {
while r.uartfr().read().txff() {}
r.uartdr().write(|w| w.set_data(b));
}
Ok(())
}
pub fn blocking_flush(&mut self) -> Result<(), Error> {
let r = T::regs();
unsafe { while !r.uartfr().read().txfe() {} }
while !r.uartfr().read().txfe() {}
Ok(())
}
pub fn busy(&self) -> bool {
unsafe { T::regs().uartfr().read().busy() }
T::regs().uartfr().read().busy()
}
/// Assert a break condition after waiting for the transmit buffers to empty,
@ -174,28 +172,23 @@ impl<'d, T: Instance, M: Mode> UartTx<'d, T, M> {
/// for the transmit fifo to empty, which may take a while on slow links.
pub async fn send_break(&mut self, bits: u32) {
let regs = T::regs();
let bits = bits.max(unsafe {
let bits = bits.max({
let lcr = regs.uartlcr_h().read();
let width = lcr.wlen() as u32 + 5;
let parity = lcr.pen() as u32;
let stops = 1 + lcr.stp2() as u32;
2 * (1 + width + parity + stops)
});
let divx64 = unsafe {
((regs.uartibrd().read().baud_divint() as u32) << 6) + regs.uartfbrd().read().baud_divfrac() as u32
} as u64;
let divx64 = (((regs.uartibrd().read().baud_divint() as u32) << 6)
+ regs.uartfbrd().read().baud_divfrac() as u32) as u64;
let div_clk = clk_peri_freq() as u64 * 64;
let wait_usecs = (1_000_000 * bits as u64 * divx64 * 16 + div_clk - 1) / div_clk;
self.blocking_flush().unwrap();
while self.busy() {}
unsafe {
regs.uartlcr_h().write_set(|w| w.set_brk(true));
}
regs.uartlcr_h().write_set(|w| w.set_brk(true));
Timer::after(Duration::from_micros(wait_usecs)).await;
unsafe {
regs.uartlcr_h().write_clear(|w| w.set_brk(true));
}
regs.uartlcr_h().write_clear(|w| w.set_brk(true));
}
}
@ -221,7 +214,7 @@ impl<'d, T: Instance> UartTx<'d, T, Async> {
});
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::write(ch, buffer, T::regs().uartdr().ptr() as *mut _, T::TX_DREQ)
crate::dma::write(ch, buffer, T::regs().uartdr().as_ptr() as *mut _, T::TX_DREQ)
};
transfer.await;
Ok(())
@ -245,12 +238,10 @@ impl<'d, T: Instance, M: Mode> UartRx<'d, T, M> {
fn new_inner(has_irq: bool, rx_dma: Option<PeripheralRef<'d, AnyChannel>>) -> Self {
debug_assert_eq!(has_irq, rx_dma.is_some());
if has_irq {
unsafe {
// disable all error interrupts initially
T::regs().uartimsc().write(|w| w.0 = 0);
T::Interrupt::steal().unpend();
T::Interrupt::steal().enable();
}
// disable all error interrupts initially
T::regs().uartimsc().write(|w| w.0 = 0);
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
}
Self {
rx_dma,
@ -269,11 +260,11 @@ impl<'d, T: Instance, M: Mode> UartRx<'d, T, M> {
fn drain_fifo(&mut self, buffer: &mut [u8]) -> Result<usize, Error> {
let r = T::regs();
for (i, b) in buffer.iter_mut().enumerate() {
if unsafe { r.uartfr().read().rxfe() } {
if r.uartfr().read().rxfe() {
return Ok(i);
}
let dr = unsafe { r.uartdr().read() };
let dr = r.uartdr().read();
if dr.oe() {
return Err(Error::Overrun);
@ -294,15 +285,13 @@ impl<'d, T: Instance, M: Mode> UartRx<'d, T, M> {
impl<'d, T: Instance, M: Mode> Drop for UartRx<'d, T, M> {
fn drop(&mut self) {
if let Some(_) = self.rx_dma {
unsafe {
T::Interrupt::steal().disable();
// clear dma flags. irq handlers use these to disambiguate among themselves.
T::regs().uartdmacr().write_clear(|reg| {
reg.set_rxdmae(true);
reg.set_txdmae(true);
reg.set_dmaonerr(true);
});
}
T::Interrupt::disable();
// clear dma flags. irq handlers use these to disambiguate among themselves.
T::regs().uartdmacr().write_clear(|reg| {
reg.set_rxdmae(true);
reg.set_txdmae(true);
reg.set_dmaonerr(true);
});
}
}
}
@ -334,7 +323,7 @@ pub struct InterruptHandler<T: Instance> {
_uart: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let uart = T::regs();
if !uart.uartdmacr().read().rxdmae() {
@ -357,14 +346,12 @@ impl<'d, T: Instance> UartRx<'d, T, Async> {
// clear error flags before we drain the fifo. errors that have accumulated
// in the flags will also be present in the fifo.
T::dma_state().rx_errs.store(0, Ordering::Relaxed);
unsafe {
T::regs().uarticr().write(|w| {
w.set_oeic(true);
w.set_beic(true);
w.set_peic(true);
w.set_feic(true);
});
}
T::regs().uarticr().write(|w| {
w.set_oeic(true);
w.set_beic(true);
w.set_peic(true);
w.set_feic(true);
});
// then drain the fifo. we need to read at most 32 bytes. errors that apply
// to fifo bytes will be reported directly.
@ -381,20 +368,20 @@ impl<'d, T: Instance> UartRx<'d, T, Async> {
// interrupt flags will have been raised, and those will be picked up immediately
// by the interrupt handler.
let ch = self.rx_dma.as_mut().unwrap();
T::regs().uartimsc().write_set(|w| {
w.set_oeim(true);
w.set_beim(true);
w.set_peim(true);
w.set_feim(true);
});
T::regs().uartdmacr().write_set(|reg| {
reg.set_rxdmae(true);
reg.set_dmaonerr(true);
});
let transfer = unsafe {
T::regs().uartimsc().write_set(|w| {
w.set_oeim(true);
w.set_beim(true);
w.set_peim(true);
w.set_feim(true);
});
T::regs().uartdmacr().write_set(|reg| {
reg.set_rxdmae(true);
reg.set_dmaonerr(true);
});
// If we don't assign future to a variable, the data register pointer
// is held across an await and makes the future non-Send.
crate::dma::read(ch, T::regs().uartdr().ptr() as *const _, buffer, T::RX_DREQ)
crate::dma::read(ch, T::regs().uartdr().as_ptr() as *const _, buffer, T::RX_DREQ)
};
// wait for either the transfer to complete or an error to happen.
@ -577,81 +564,79 @@ impl<'d, T: Instance + 'd, M: Mode> Uart<'d, T, M> {
config: Config,
) {
let r = T::regs();
unsafe {
if let Some(pin) = &tx {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_outover(if config.invert_tx {
Outover::INVERT
} else {
Outover::NORMAL
});
if let Some(pin) = &tx {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_outover(if config.invert_tx {
Outover::INVERT
} else {
Outover::NORMAL
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
if let Some(pin) = &rx {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_inover(if config.invert_rx {
Inover::INVERT
} else {
Inover::NORMAL
});
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
if let Some(pin) = &cts {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_inover(if config.invert_cts {
Inover::INVERT
} else {
Inover::NORMAL
});
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
if let Some(pin) = &rts {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_outover(if config.invert_rts {
Outover::INVERT
} else {
Outover::NORMAL
});
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
Self::set_baudrate_inner(config.baudrate);
let (pen, eps) = match config.parity {
Parity::ParityNone => (false, false),
Parity::ParityOdd => (true, false),
Parity::ParityEven => (true, true),
};
r.uartlcr_h().write(|w| {
w.set_wlen(config.data_bits.bits());
w.set_stp2(config.stop_bits == StopBits::STOP2);
w.set_pen(pen);
w.set_eps(eps);
w.set_fen(true);
});
r.uartifls().write(|w| {
w.set_rxiflsel(0b000);
w.set_txiflsel(0b000);
});
r.uartcr().write(|w| {
w.set_uarten(true);
w.set_rxe(true);
w.set_txe(true);
w.set_ctsen(cts.is_some());
w.set_rtsen(rts.is_some());
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
if let Some(pin) = &rx {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_inover(if config.invert_rx {
Inover::INVERT
} else {
Inover::NORMAL
});
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
if let Some(pin) = &cts {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_inover(if config.invert_cts {
Inover::INVERT
} else {
Inover::NORMAL
});
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
if let Some(pin) = &rts {
pin.io().ctrl().write(|w| {
w.set_funcsel(2);
w.set_outover(if config.invert_rts {
Outover::INVERT
} else {
Outover::NORMAL
});
});
pin.pad_ctrl().write(|w| w.set_ie(true));
}
Self::set_baudrate_inner(config.baudrate);
let (pen, eps) = match config.parity {
Parity::ParityNone => (false, false),
Parity::ParityOdd => (true, false),
Parity::ParityEven => (true, true),
};
r.uartlcr_h().write(|w| {
w.set_wlen(config.data_bits.bits());
w.set_stp2(config.stop_bits == StopBits::STOP2);
w.set_pen(pen);
w.set_eps(eps);
w.set_fen(true);
});
r.uartifls().write(|w| {
w.set_rxiflsel(0b000);
w.set_txiflsel(0b000);
});
r.uartcr().write(|w| {
w.set_uarten(true);
w.set_rxe(true);
w.set_txe(true);
w.set_ctsen(cts.is_some());
w.set_rtsen(rts.is_some());
});
}
/// sets baudrate on runtime
@ -676,15 +661,13 @@ impl<'d, T: Instance + 'd, M: Mode> Uart<'d, T, M> {
baud_fbrd = 0;
}
unsafe {
// Load PL011's baud divisor registers
r.uartibrd().write_value(pac::uart::regs::Uartibrd(baud_ibrd));
r.uartfbrd().write_value(pac::uart::regs::Uartfbrd(baud_fbrd));
// Load PL011's baud divisor registers
r.uartibrd().write_value(pac::uart::regs::Uartibrd(baud_ibrd));
r.uartfbrd().write_value(pac::uart::regs::Uartfbrd(baud_fbrd));
// PL011 needs a (dummy) line control register write to latch in the
// divisors. We don't want to actually change LCR contents here.
r.uartlcr_h().modify(|_| {});
}
// PL011 needs a (dummy) line control register write to latch in the
// divisors. We don't want to actually change LCR contents here.
r.uartlcr_h().modify(|_| {});
}
}
@ -733,24 +716,22 @@ mod eh02 {
type Error = Error;
fn read(&mut self) -> Result<u8, nb::Error<Self::Error>> {
let r = T::regs();
unsafe {
if r.uartfr().read().rxfe() {
return Err(nb::Error::WouldBlock);
}
if r.uartfr().read().rxfe() {
return Err(nb::Error::WouldBlock);
}
let dr = r.uartdr().read();
let dr = r.uartdr().read();
if dr.oe() {
Err(nb::Error::Other(Error::Overrun))
} else if dr.be() {
Err(nb::Error::Other(Error::Break))
} else if dr.pe() {
Err(nb::Error::Other(Error::Parity))
} else if dr.fe() {
Err(nb::Error::Other(Error::Framing))
} else {
Ok(dr.data())
}
if dr.oe() {
Err(nb::Error::Other(Error::Overrun))
} else if dr.be() {
Err(nb::Error::Other(Error::Break))
} else if dr.pe() {
Err(nb::Error::Other(Error::Parity))
} else if dr.fe() {
Err(nb::Error::Other(Error::Framing))
} else {
Ok(dr.data())
}
}
}
@ -760,22 +741,18 @@ mod eh02 {
fn write(&mut self, word: u8) -> Result<(), nb::Error<Self::Error>> {
let r = T::regs();
unsafe {
if r.uartfr().read().txff() {
return Err(nb::Error::WouldBlock);
}
r.uartdr().write(|w| w.set_data(word));
if r.uartfr().read().txff() {
return Err(nb::Error::WouldBlock);
}
r.uartdr().write(|w| w.set_data(word));
Ok(())
}
fn flush(&mut self) -> Result<(), nb::Error<Self::Error>> {
let r = T::regs();
unsafe {
if !r.uartfr().read().txfe() {
return Err(nb::Error::WouldBlock);
}
if !r.uartfr().read().txfe() {
return Err(nb::Error::WouldBlock);
}
Ok(())
}
@ -856,22 +833,20 @@ mod eh1 {
impl<'d, T: Instance, M: Mode> embedded_hal_nb::serial::Read for UartRx<'d, T, M> {
fn read(&mut self) -> nb::Result<u8, Self::Error> {
let r = T::regs();
unsafe {
let dr = r.uartdr().read();
let dr = r.uartdr().read();
if dr.oe() {
Err(nb::Error::Other(Error::Overrun))
} else if dr.be() {
Err(nb::Error::Other(Error::Break))
} else if dr.pe() {
Err(nb::Error::Other(Error::Parity))
} else if dr.fe() {
Err(nb::Error::Other(Error::Framing))
} else if dr.fe() {
Ok(dr.data())
} else {
Err(nb::Error::WouldBlock)
}
if dr.oe() {
Err(nb::Error::Other(Error::Overrun))
} else if dr.be() {
Err(nb::Error::Other(Error::Break))
} else if dr.pe() {
Err(nb::Error::Other(Error::Parity))
} else if dr.fe() {
Err(nb::Error::Other(Error::Framing))
} else if dr.fe() {
Ok(dr.data())
} else {
Err(nb::Error::WouldBlock)
}
}
}
@ -932,7 +907,7 @@ mod sealed {
const TX_DREQ: u8;
const RX_DREQ: u8;
type Interrupt: crate::interrupt::Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
fn regs() -> pac::uart::Uart;
@ -970,7 +945,7 @@ macro_rules! impl_instance {
const TX_DREQ: u8 = $tx_dreq;
const RX_DREQ: u8 = $rx_dreq;
type Interrupt = crate::interrupt::$irq;
type Interrupt = crate::interrupt::typelevel::$irq;
fn regs() -> pac::uart::Uart {
pac::$inst

316
embassy-rp/src/usb.rs
View file

@ -4,15 +4,14 @@ use core::slice;
use core::sync::atomic::{compiler_fence, Ordering};
use core::task::Poll;
use embassy_cortex_m::interrupt::{self, Binding};
use embassy_sync::waitqueue::AtomicWaker;
use embassy_usb_driver as driver;
use embassy_usb_driver::{
Direction, EndpointAddress, EndpointAllocError, EndpointError, EndpointInfo, EndpointType, Event, Unsupported,
};
use crate::interrupt::{Interrupt, InterruptExt};
use crate::{pac, peripherals, Peripheral, RegExt};
use crate::interrupt::typelevel::{Binding, Interrupt};
use crate::{interrupt, pac, peripherals, Peripheral, RegExt};
pub(crate) mod sealed {
pub trait Instance {
@ -22,7 +21,7 @@ pub(crate) mod sealed {
}
pub trait Instance: sealed::Instance + 'static {
type Interrupt: Interrupt;
type Interrupt: interrupt::typelevel::Interrupt;
}
impl crate::usb::sealed::Instance for peripherals::USB {
@ -35,12 +34,12 @@ impl crate::usb::sealed::Instance for peripherals::USB {
}
impl crate::usb::Instance for peripherals::USB {
type Interrupt = crate::interrupt::USBCTRL_IRQ;
type Interrupt = crate::interrupt::typelevel::USBCTRL_IRQ;
}
const EP_COUNT: usize = 16;
const EP_MEMORY_SIZE: usize = 4096;
const EP_MEMORY: *mut u8 = pac::USBCTRL_DPRAM.0;
const EP_MEMORY: *mut u8 = pac::USBCTRL_DPRAM.as_ptr() as *mut u8;
const NEW_AW: AtomicWaker = AtomicWaker::new();
static BUS_WAKER: AtomicWaker = NEW_AW;
@ -106,15 +105,13 @@ pub struct Driver<'d, T: Instance> {
impl<'d, T: Instance> Driver<'d, T> {
pub fn new(_usb: impl Peripheral<P = T> + 'd, _irq: impl Binding<T::Interrupt, InterruptHandler<T>>) -> Self {
unsafe {
T::Interrupt::steal().unpend();
T::Interrupt::steal().enable();
}
T::Interrupt::unpend();
unsafe { T::Interrupt::enable() };
let regs = T::regs();
unsafe {
// zero fill regs
let p = regs.0 as *mut u32;
let p = regs.as_ptr() as *mut u32;
for i in 0..0x9c / 4 {
p.add(i).write_volatile(0)
}
@ -124,20 +121,20 @@ impl<'d, T: Instance> Driver<'d, T> {
for i in 0..0x100 / 4 {
p.add(i).write_volatile(0)
}
regs.usb_muxing().write(|w| {
w.set_to_phy(true);
w.set_softcon(true);
});
regs.usb_pwr().write(|w| {
w.set_vbus_detect(true);
w.set_vbus_detect_override_en(true);
});
regs.main_ctrl().write(|w| {
w.set_controller_en(true);
});
}
regs.usb_muxing().write(|w| {
w.set_to_phy(true);
w.set_softcon(true);
});
regs.usb_pwr().write(|w| {
w.set_vbus_detect(true);
w.set_vbus_detect_override_en(true);
});
regs.main_ctrl().write(|w| {
w.set_controller_en(true);
});
// Initialize the bus so that it signals that power is available
BUS_WAKER.wake();
@ -216,22 +213,18 @@ impl<'d, T: Instance> Driver<'d, T> {
};
match D::dir() {
Direction::Out => unsafe {
T::dpram().ep_out_control(index - 1).write(|w| {
w.set_enable(false);
w.set_buffer_address(addr);
w.set_interrupt_per_buff(true);
w.set_endpoint_type(ep_type_reg);
})
},
Direction::In => unsafe {
T::dpram().ep_in_control(index - 1).write(|w| {
w.set_enable(false);
w.set_buffer_address(addr);
w.set_interrupt_per_buff(true);
w.set_endpoint_type(ep_type_reg);
})
},
Direction::Out => T::dpram().ep_out_control(index - 1).write(|w| {
w.set_enable(false);
w.set_buffer_address(addr);
w.set_interrupt_per_buff(true);
w.set_endpoint_type(ep_type_reg);
}),
Direction::In => T::dpram().ep_in_control(index - 1).write(|w| {
w.set_enable(false);
w.set_buffer_address(addr);
w.set_interrupt_per_buff(true);
w.set_endpoint_type(ep_type_reg);
}),
}
Ok(Endpoint {
@ -251,7 +244,7 @@ pub struct InterruptHandler<T: Instance> {
_uart: PhantomData<T>,
}
impl<T: Instance> interrupt::Handler<T::Interrupt> for InterruptHandler<T> {
impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandler<T> {
unsafe fn on_interrupt() {
let regs = T::regs();
//let x = regs.istr().read().0;
@ -318,22 +311,21 @@ impl<'d, T: Instance> driver::Driver<'d> for Driver<'d, T> {
fn start(self, control_max_packet_size: u16) -> (Self::Bus, Self::ControlPipe) {
let regs = T::regs();
unsafe {
regs.inte().write(|w| {
w.set_bus_reset(true);
w.set_buff_status(true);
w.set_dev_resume_from_host(true);
w.set_dev_suspend(true);
w.set_setup_req(true);
});
regs.int_ep_ctrl().write(|w| {
w.set_int_ep_active(0xFFFE); // all EPs
});
regs.sie_ctrl().write(|w| {
w.set_ep0_int_1buf(true);
w.set_pullup_en(true);
})
}
regs.inte().write(|w| {
w.set_bus_reset(true);
w.set_buff_status(true);
w.set_dev_resume_from_host(true);
w.set_dev_suspend(true);
w.set_setup_req(true);
});
regs.int_ep_ctrl().write(|w| {
w.set_int_ep_active(0xFFFE); // all EPs
});
regs.sie_ctrl().write(|w| {
w.set_ep0_int_1buf(true);
w.set_pullup_en(true);
});
trace!("enabled");
(
@ -358,7 +350,7 @@ pub struct Bus<'d, T: Instance> {
impl<'d, T: Instance> driver::Bus for Bus<'d, T> {
async fn poll(&mut self) -> Event {
poll_fn(move |cx| unsafe {
poll_fn(move |cx| {
BUS_WAKER.register(cx.waker());
if !self.inited {
@ -428,14 +420,14 @@ impl<'d, T: Instance> driver::Bus for Bus<'d, T> {
let n = ep_addr.index();
match ep_addr.direction() {
Direction::In => unsafe {
Direction::In => {
T::dpram().ep_in_control(n - 1).modify(|w| w.set_enable(enabled));
T::dpram().ep_in_buffer_control(ep_addr.index()).write(|w| {
w.set_pid(0, true); // first packet is DATA0, but PID is flipped before
});
EP_IN_WAKERS[n].wake();
},
Direction::Out => unsafe {
}
Direction::Out => {
T::dpram().ep_out_control(n - 1).modify(|w| w.set_enable(enabled));
T::dpram().ep_out_buffer_control(ep_addr.index()).write(|w| {
@ -449,7 +441,7 @@ impl<'d, T: Instance> driver::Bus for Bus<'d, T> {
w.set_available(0, true);
});
EP_OUT_WAKERS[n].wake();
},
}
}
}
@ -507,7 +499,7 @@ impl<'d, T: Instance> driver::Endpoint for Endpoint<'d, T, In> {
let index = self.info.addr.index();
poll_fn(|cx| {
EP_IN_WAKERS[index].register(cx.waker());
let val = unsafe { T::dpram().ep_in_control(self.info.addr.index() - 1).read() };
let val = T::dpram().ep_in_control(self.info.addr.index() - 1).read();
if val.enable() {
Poll::Ready(())
} else {
@ -529,7 +521,7 @@ impl<'d, T: Instance> driver::Endpoint for Endpoint<'d, T, Out> {
let index = self.info.addr.index();
poll_fn(|cx| {
EP_OUT_WAKERS[index].register(cx.waker());
let val = unsafe { T::dpram().ep_out_control(self.info.addr.index() - 1).read() };
let val = T::dpram().ep_out_control(self.info.addr.index() - 1).read();
if val.enable() {
Poll::Ready(())
} else {
@ -545,7 +537,7 @@ impl<'d, T: Instance> driver::EndpointOut for Endpoint<'d, T, Out> {
async fn read(&mut self, buf: &mut [u8]) -> Result<usize, EndpointError> {
trace!("READ WAITING, buf.len() = {}", buf.len());
let index = self.info.addr.index();
let val = poll_fn(|cx| unsafe {
let val = poll_fn(|cx| {
EP_OUT_WAKERS[index].register(cx.waker());
let val = T::dpram().ep_out_buffer_control(index).read();
if val.available(0) {
@ -564,19 +556,17 @@ impl<'d, T: Instance> driver::EndpointOut for Endpoint<'d, T, Out> {
trace!("READ OK, rx_len = {}", rx_len);
unsafe {
let pid = !val.pid(0);
T::dpram().ep_out_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, self.info.max_packet_size);
});
cortex_m::asm::delay(12);
T::dpram().ep_out_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, self.info.max_packet_size);
w.set_available(0, true);
});
}
let pid = !val.pid(0);
T::dpram().ep_out_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, self.info.max_packet_size);
});
cortex_m::asm::delay(12);
T::dpram().ep_out_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, self.info.max_packet_size);
w.set_available(0, true);
});
Ok(rx_len)
}
@ -591,7 +581,7 @@ impl<'d, T: Instance> driver::EndpointIn for Endpoint<'d, T, In> {
trace!("WRITE WAITING");
let index = self.info.addr.index();
let val = poll_fn(|cx| unsafe {
let val = poll_fn(|cx| {
EP_IN_WAKERS[index].register(cx.waker());
let val = T::dpram().ep_in_buffer_control(index).read();
if val.available(0) {
@ -604,21 +594,19 @@ impl<'d, T: Instance> driver::EndpointIn for Endpoint<'d, T, In> {
self.buf.write(buf);
unsafe {
let pid = !val.pid(0);
T::dpram().ep_in_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, buf.len() as _);
w.set_full(0, true);
});
cortex_m::asm::delay(12);
T::dpram().ep_in_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, buf.len() as _);
w.set_full(0, true);
w.set_available(0, true);
});
}
let pid = !val.pid(0);
T::dpram().ep_in_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, buf.len() as _);
w.set_full(0, true);
});
cortex_m::asm::delay(12);
T::dpram().ep_in_buffer_control(index).write(|w| {
w.set_pid(0, pid);
w.set_length(0, buf.len() as _);
w.set_full(0, true);
w.set_available(0, true);
});
trace!("WRITE OK");
@ -640,9 +628,9 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
loop {
trace!("SETUP read waiting");
let regs = T::regs();
unsafe { regs.inte().write_set(|w| w.set_setup_req(true)) };
regs.inte().write_set(|w| w.set_setup_req(true));
poll_fn(|cx| unsafe {
poll_fn(|cx| {
EP_OUT_WAKERS[0].register(cx.waker());
let regs = T::regs();
if regs.sie_status().read().setup_rec() {
@ -657,13 +645,11 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
EndpointBuffer::<T>::new(0, 8).read(&mut buf);
let regs = T::regs();
unsafe {
regs.sie_status().write(|w| w.set_setup_rec(true));
regs.sie_status().write(|w| w.set_setup_rec(true));
// set PID to 0, so (after toggling) first DATA is PID 1
T::dpram().ep_in_buffer_control(0).write(|w| w.set_pid(0, false));
T::dpram().ep_out_buffer_control(0).write(|w| w.set_pid(0, false));
}
// set PID to 0, so (after toggling) first DATA is PID 1
T::dpram().ep_in_buffer_control(0).write(|w| w.set_pid(0, false));
T::dpram().ep_out_buffer_control(0).write(|w| w.set_pid(0, false));
trace!("SETUP read ok");
return buf;
@ -671,23 +657,21 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
}
async fn data_out(&mut self, buf: &mut [u8], first: bool, last: bool) -> Result<usize, EndpointError> {
unsafe {
let bufcontrol = T::dpram().ep_out_buffer_control(0);
let pid = !bufcontrol.read().pid(0);
bufcontrol.write(|w| {
w.set_length(0, self.max_packet_size);
w.set_pid(0, pid);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, self.max_packet_size);
w.set_pid(0, pid);
w.set_available(0, true);
});
}
let bufcontrol = T::dpram().ep_out_buffer_control(0);
let pid = !bufcontrol.read().pid(0);
bufcontrol.write(|w| {
w.set_length(0, self.max_packet_size);
w.set_pid(0, pid);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, self.max_packet_size);
w.set_pid(0, pid);
w.set_available(0, true);
});
trace!("control: data_out len={} first={} last={}", buf.len(), first, last);
let val = poll_fn(|cx| unsafe {
let val = poll_fn(|cx| {
EP_OUT_WAKERS[0].register(cx.waker());
let val = T::dpram().ep_out_buffer_control(0).read();
if val.available(0) {
@ -717,24 +701,22 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
}
EndpointBuffer::<T>::new(0x100, 64).write(data);
unsafe {
let bufcontrol = T::dpram().ep_in_buffer_control(0);
let pid = !bufcontrol.read().pid(0);
bufcontrol.write(|w| {
w.set_length(0, data.len() as _);
w.set_pid(0, pid);
w.set_full(0, true);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, data.len() as _);
w.set_pid(0, pid);
w.set_full(0, true);
w.set_available(0, true);
});
}
let bufcontrol = T::dpram().ep_in_buffer_control(0);
let pid = !bufcontrol.read().pid(0);
bufcontrol.write(|w| {
w.set_length(0, data.len() as _);
w.set_pid(0, pid);
w.set_full(0, true);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, data.len() as _);
w.set_pid(0, pid);
w.set_full(0, true);
w.set_available(0, true);
});
poll_fn(|cx| unsafe {
poll_fn(|cx| {
EP_IN_WAKERS[0].register(cx.waker());
let bufcontrol = T::dpram().ep_in_buffer_control(0);
if bufcontrol.read().available(0) {
@ -748,19 +730,17 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
if last {
// prepare status phase right away.
unsafe {
let bufcontrol = T::dpram().ep_out_buffer_control(0);
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
w.set_available(0, true);
});
}
let bufcontrol = T::dpram().ep_out_buffer_control(0);
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
w.set_available(0, true);
});
}
Ok(())
@ -770,26 +750,24 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
trace!("control: accept");
let bufcontrol = T::dpram().ep_in_buffer_control(0);
unsafe {
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
w.set_full(0, true);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
w.set_full(0, true);
w.set_available(0, true);
});
}
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
w.set_full(0, true);
});
cortex_m::asm::delay(12);
bufcontrol.write(|w| {
w.set_length(0, 0);
w.set_pid(0, true);
w.set_full(0, true);
w.set_available(0, true);
});
// wait for completion before returning, needed so
// set_address() doesn't happen early.
poll_fn(|cx| {
EP_IN_WAKERS[0].register(cx.waker());
if unsafe { bufcontrol.read().available(0) } {
if bufcontrol.read().available(0) {
Poll::Pending
} else {
Poll::Ready(())
@ -802,14 +780,12 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
trace!("control: reject");
let regs = T::regs();
unsafe {
regs.ep_stall_arm().write_set(|w| {
w.set_ep0_in(true);
w.set_ep0_out(true);
});
T::dpram().ep_out_buffer_control(0).write(|w| w.set_stall(true));
T::dpram().ep_in_buffer_control(0).write(|w| w.set_stall(true));
}
regs.ep_stall_arm().write_set(|w| {
w.set_ep0_in(true);
w.set_ep0_out(true);
});
T::dpram().ep_out_buffer_control(0).write(|w| w.set_stall(true));
T::dpram().ep_in_buffer_control(0).write(|w| w.set_stall(true));
}
async fn accept_set_address(&mut self, addr: u8) {
@ -817,6 +793,6 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
let regs = T::regs();
trace!("setting addr: {}", addr);
unsafe { regs.addr_endp().write(|w| w.set_address(addr)) }
regs.addr_endp().write(|w| w.set_address(addr))
}
}

60
embassy-rp/src/watchdog.rs
View file

@ -35,45 +35,37 @@ impl Watchdog {
/// * `cycles` - Total number of tick cycles before the next tick is generated.
/// It is expected to be the frequency in MHz of clk_ref.
pub fn enable_tick_generation(&mut self, cycles: u8) {
unsafe {
let watchdog = pac::WATCHDOG;
watchdog.tick().write(|w| {
w.set_enable(true);
w.set_cycles(cycles.into())
});
}
let watchdog = pac::WATCHDOG;
watchdog.tick().write(|w| {
w.set_enable(true);
w.set_cycles(cycles.into())
});
}
/// Defines whether or not the watchdog timer should be paused when processor(s) are in debug mode
/// or when JTAG is accessing bus fabric
pub fn pause_on_debug(&mut self, pause: bool) {
unsafe {
let watchdog = pac::WATCHDOG;
watchdog.ctrl().write(|w| {
w.set_pause_dbg0(pause);
w.set_pause_dbg1(pause);
w.set_pause_jtag(pause);
})
}
let watchdog = pac::WATCHDOG;
watchdog.ctrl().write(|w| {
w.set_pause_dbg0(pause);
w.set_pause_dbg1(pause);
w.set_pause_jtag(pause);
})
}
fn load_counter(&self, counter: u32) {
unsafe {
let watchdog = pac::WATCHDOG;
watchdog.load().write_value(pac::watchdog::regs::Load(counter));
}
let watchdog = pac::WATCHDOG;
watchdog.load().write_value(pac::watchdog::regs::Load(counter));
}
fn enable(&self, bit: bool) {
unsafe {
let watchdog = pac::WATCHDOG;
watchdog.ctrl().write(|w| w.set_enable(bit))
}
let watchdog = pac::WATCHDOG;
watchdog.ctrl().write(|w| w.set_enable(bit))
}
// Configure which hardware will be reset by the watchdog
// (everything except ROSC, XOSC)
unsafe fn configure_wdog_reset_triggers(&self) {
fn configure_wdog_reset_triggers(&self) {
let psm = pac::PSM;
psm.wdsel().write_value(pac::psm::regs::Wdsel(
0x0001ffff & !(0x01 << 0usize) & !(0x01 << 1usize),
@ -100,23 +92,19 @@ impl Watchdog {
self.load_value = delay_us * 2;
self.enable(false);
unsafe {
self.configure_wdog_reset_triggers();
}
self.configure_wdog_reset_triggers();
self.load_counter(self.load_value);
self.enable(true);
}
/// Trigger a system reset
pub fn trigger_reset(&mut self) {
unsafe {
self.configure_wdog_reset_triggers();
self.pause_on_debug(false);
self.enable(true);
let watchdog = pac::WATCHDOG;
watchdog.ctrl().write(|w| {
w.set_trigger(true);
})
}
self.configure_wdog_reset_triggers();
self.pause_on_debug(false);
self.enable(true);
let watchdog = pac::WATCHDOG;
watchdog.ctrl().write(|w| {
w.set_trigger(true);
})
}
}

45
embassy-stm32-wpan/Cargo.toml Normal file
View file

@ -0,0 +1,45 @@
[package]
name = "embassy-stm32-wpan"
version = "0.1.0"
edition = "2021"
license = "MIT OR Apache-2.0"
[package.metadata.embassy_docs]
src_base = "https://github.com/embassy-rs/embassy/blob/embassy-stm32-wpan-v$VERSION/embassy-stm32-wpan/src"
src_base_git = "https://github.com/embassy-rs/embassy/blob/$COMMIT/embassy-stm32-wpan/src"
target = "thumbv7em-none-eabihf"
features = ["stm32wb55rg"]
[dependencies]
embassy-stm32 = { version = "0.1.0", path = "../embassy-stm32" }
embassy-sync = { version = "0.2.0", path = "../embassy-sync" }
embassy-time = { version = "0.1.0", path = "../embassy-time", optional = true }
embassy-futures = { version = "0.1.0", path = "../embassy-futures" }
embassy-hal-common = { version = "0.1.0", path = "../embassy-hal-common" }
embassy-embedded-hal = { version = "0.1.0", path = "../embassy-embedded-hal" }
defmt = { version = "0.3", optional = true }
cortex-m = "0.7.6"
heapless = "0.7.16"
bit_field = "0.10.2"
[features]
defmt = ["dep:defmt", "embassy-sync/defmt", "embassy-embedded-hal/defmt", "embassy-hal-common/defmt"]
stm32wb10cc = [ "embassy-stm32/stm32wb10cc" ]
stm32wb15cc = [ "embassy-stm32/stm32wb15cc" ]
stm32wb30ce = [ "embassy-stm32/stm32wb30ce" ]
stm32wb35cc = [ "embassy-stm32/stm32wb35cc" ]
stm32wb35ce = [ "embassy-stm32/stm32wb35ce" ]
stm32wb50cg = [ "embassy-stm32/stm32wb50cg" ]
stm32wb55cc = [ "embassy-stm32/stm32wb55cc" ]
stm32wb55ce = [ "embassy-stm32/stm32wb55ce" ]
stm32wb55cg = [ "embassy-stm32/stm32wb55cg" ]
stm32wb55rc = [ "embassy-stm32/stm32wb55rc" ]
stm32wb55re = [ "embassy-stm32/stm32wb55re" ]
stm32wb55rg = [ "embassy-stm32/stm32wb55rg" ]
stm32wb55vc = [ "embassy-stm32/stm32wb55vc" ]
stm32wb55ve = [ "embassy-stm32/stm32wb55ve" ]
stm32wb55vg = [ "embassy-stm32/stm32wb55vg" ]
stm32wb55vy = [ "embassy-stm32/stm32wb55vy" ]

34
embassy-stm32-wpan/build.rs Normal file
View file

@ -0,0 +1,34 @@
use std::env;
fn main() {
match env::vars()
.map(|(a, _)| a)
.filter(|x| x.starts_with("CARGO_FEATURE_STM32"))
.get_one()
{
Ok(_) => {}
Err(GetOneError::None) => panic!("No stm32xx Cargo feature enabled"),
Err(GetOneError::Multiple) => panic!("Multiple stm32xx Cargo features enabled"),
}
}
enum GetOneError {
None,
Multiple,
}
trait IteratorExt: Iterator {
fn get_one(self) -> Result<Self::Item, GetOneError>;
}
impl<T: Iterator> IteratorExt for T {
fn get_one(mut self) -> Result<Self::Item, GetOneError> {
match self.next() {
None => Err(GetOneError::None),
Some(res) => match self.next() {
Some(_) => Err(GetOneError::Multiple),
None => Ok(res),
},
}
}
}

63
embassy-stm32-wpan/src/ble.rs Normal file
View file

@ -0,0 +1,63 @@
use core::marker::PhantomData;
use embassy_stm32::ipcc::Ipcc;
use crate::cmd::CmdPacket;
use crate::consts::TlPacketType;
use crate::evt::EvtBox;
use crate::tables::BleTable;
use crate::unsafe_linked_list::LinkedListNode;
use crate::{channels, BLE_CMD_BUFFER, CS_BUFFER, EVT_QUEUE, HCI_ACL_DATA_BUFFER, TL_BLE_TABLE};
pub struct Ble {
phantom: PhantomData<Ble>,
}
impl Ble {
pub(crate) fn new() -> Self {
unsafe {
LinkedListNode::init_head(EVT_QUEUE.as_mut_ptr());
TL_BLE_TABLE.as_mut_ptr().write_volatile(BleTable {
pcmd_buffer: BLE_CMD_BUFFER.as_mut_ptr().cast(),
pcs_buffer: CS_BUFFER.as_ptr().cast(),
pevt_queue: EVT_QUEUE.as_ptr().cast(),
phci_acl_data_buffer: HCI_ACL_DATA_BUFFER.as_mut_ptr().cast(),
});
}
Self { phantom: PhantomData }
}
/// `HW_IPCC_BLE_EvtNot`
pub async fn read(&self) -> EvtBox {
Ipcc::receive(channels::cpu2::IPCC_BLE_EVENT_CHANNEL, || unsafe {
if let Some(node_ptr) = LinkedListNode::remove_head(EVT_QUEUE.as_mut_ptr()) {
Some(EvtBox::new(node_ptr.cast()))
} else {
None
}
})
.await
}
/// `TL_BLE_SendCmd`
pub async fn write(&self, opcode: u16, payload: &[u8]) {
Ipcc::send(channels::cpu1::IPCC_BLE_CMD_CHANNEL, || unsafe {
CmdPacket::write_into(BLE_CMD_BUFFER.as_mut_ptr(), TlPacketType::BleCmd, opcode, payload);
})
.await;
}
/// `TL_BLE_SendAclData`
pub async fn acl_write(&self, handle: u16, payload: &[u8]) {
Ipcc::send(channels::cpu1::IPCC_HCI_ACL_DATA_CHANNEL, || unsafe {
CmdPacket::write_into(
HCI_ACL_DATA_BUFFER.as_mut_ptr() as *mut _,
TlPacketType::AclData,
handle,
payload,
);
})
.await;
}
}

16
embassy-stm32/src/tl_mbox/channels.rs → embassy-stm32-wpan/src/channels.rs
View file

@ -50,36 +50,30 @@
//!
pub mod cpu1 {
use crate::tl_mbox::ipcc::IpccChannel;
use embassy_stm32::ipcc::IpccChannel;
// Not used currently but reserved
pub const IPCC_BLE_CMD_CHANNEL: IpccChannel = IpccChannel::Channel1;
// Not used currently but reserved
pub const IPCC_SYSTEM_CMD_RSP_CHANNEL: IpccChannel = IpccChannel::Channel2;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_THREAD_OT_CMD_RSP_CHANNEL: IpccChannel = IpccChannel::Channel3;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_ZIGBEE_CMD_APPLI_CHANNEL: IpccChannel = IpccChannel::Channel3;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_MAC_802_15_4_CMD_RSP_CHANNEL: IpccChannel = IpccChannel::Channel3;
// Not used currently but reserved
pub const IPCC_MM_RELEASE_BUFFER_CHANNEL: IpccChannel = IpccChannel::Channel4;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_MM_RELEASE_BUFFER_CHANNEL: IpccChannel = IpccChannel::Channel4;
pub const IPCC_THREAD_CLI_CMD_CHANNEL: IpccChannel = IpccChannel::Channel5;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_LLDTESTS_CLI_CMD_CHANNEL: IpccChannel = IpccChannel::Channel5;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_BLE_LLD_CMD_CHANNEL: IpccChannel = IpccChannel::Channel5;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_HCI_ACL_DATA_CHANNEL: IpccChannel = IpccChannel::Channel6;
}
pub mod cpu2 {
use crate::tl_mbox::ipcc::IpccChannel;
use embassy_stm32::ipcc::IpccChannel;
pub const IPCC_BLE_EVENT_CHANNEL: IpccChannel = IpccChannel::Channel1;
pub const IPCC_SYSTEM_EVENT_CHANNEL: IpccChannel = IpccChannel::Channel2;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_THREAD_NOTIFICATION_ACK_CHANNEL: IpccChannel = IpccChannel::Channel3;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_ZIGBEE_APPLI_NOTIF_ACK_CHANNEL: IpccChannel = IpccChannel::Channel3;
@ -88,10 +82,8 @@ pub mod cpu2 {
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_LDDTESTS_M0_CMD_CHANNEL: IpccChannel = IpccChannel::Channel3;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_BLE_LLD_M0_CMD_CHANNEL: IpccChannel = IpccChannel::Channel3;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_BLE_LLDÇM0_CMD_CHANNEL: IpccChannel = IpccChannel::Channel3;
pub const IPCC_TRACES_CHANNEL: IpccChannel = IpccChannel::Channel4;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_THREAD_CLI_NOTIFICATION_ACK_CHANNEL: IpccChannel = IpccChannel::Channel5;
#[allow(dead_code)] // Not used currently but reserved
pub const IPCC_LLDTESTS_CLI_RSP_CHANNEL: IpccChannel = IpccChannel::Channel5;

104
embassy-stm32-wpan/src/cmd.rs Normal file
View file

@ -0,0 +1,104 @@
use core::ptr;
use crate::consts::TlPacketType;
use crate::PacketHeader;
#[derive(Copy, Clone)]
#[repr(C, packed)]
pub struct Cmd {
pub cmd_code: u16,
pub payload_len: u8,
pub payload: [u8; 255],
}
impl Default for Cmd {
fn default() -> Self {
Self {
cmd_code: 0,
payload_len: 0,
payload: [0u8; 255],
}
}
}
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct CmdSerial {
pub ty: u8,
pub cmd: Cmd,
}
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct CmdSerialStub {
pub ty: u8,
pub cmd_code: u16,
pub payload_len: u8,
}
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct CmdPacket {
pub header: PacketHeader,
pub cmdserial: CmdSerial,
}
impl CmdPacket {
pub unsafe fn write_into(cmd_buf: *mut CmdPacket, packet_type: TlPacketType, cmd_code: u16, payload: &[u8]) {
let p_cmd_serial = &mut (*cmd_buf).cmdserial as *mut _ as *mut CmdSerialStub;
let p_payload = &mut (*cmd_buf).cmdserial.cmd.payload as *mut _;
ptr::write_volatile(
p_cmd_serial,
CmdSerialStub {
ty: packet_type as u8,
cmd_code: cmd_code,
payload_len: payload.len() as u8,
},
);
ptr::copy_nonoverlapping(payload as *const _ as *const u8, p_payload, payload.len());
}
}
#[derive(Copy, Clone)]
#[repr(C, packed)]
pub struct AclDataSerial {
pub ty: u8,
pub handle: u16,
pub length: u16,
pub acl_data: [u8; 1],
}
#[derive(Copy, Clone)]
#[repr(C, packed)]
pub struct AclDataSerialStub {
pub ty: u8,
pub handle: u16,
pub length: u16,
}
#[derive(Copy, Clone)]
#[repr(C, packed)]
pub struct AclDataPacket {
pub header: PacketHeader,
pub acl_data_serial: AclDataSerial,
}
impl AclDataPacket {
pub unsafe fn write_into(cmd_buf: *mut AclDataPacket, packet_type: TlPacketType, handle: u16, payload: &[u8]) {
let p_cmd_serial = &mut (*cmd_buf).acl_data_serial as *mut _ as *mut AclDataSerialStub;
let p_payload = &mut (*cmd_buf).acl_data_serial.acl_data as *mut _;
ptr::write_volatile(
p_cmd_serial,
AclDataSerialStub {
ty: packet_type as u8,
handle: handle,
length: payload.len() as u16,
},
);
ptr::copy_nonoverlapping(payload as *const _ as *const u8, p_payload, payload.len());
}
}

4
embassy-stm32/src/tl_mbox/consts.rs → embassy-stm32-wpan/src/consts.rs
View file

@ -1,4 +1,6 @@
#[derive(PartialEq)]
use core::convert::TryFrom;
#[derive(Debug)]
#[repr(C)]
pub enum TlPacketType {
BleCmd = 0x01,

195
embassy-stm32-wpan/src/evt.rs Normal file
View file

@ -0,0 +1,195 @@
use core::{ptr, slice};
use super::PacketHeader;
use crate::mm;
/**
* The payload of `Evt` for a command status event
*/
#[derive(Copy, Clone)]
#[repr(C, packed)]
pub struct CsEvt {
pub status: u8,
pub num_cmd: u8,
pub cmd_code: u16,
}
/**
* The payload of `Evt` for a command complete event
*/
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct CcEvt {
pub num_cmd: u8,
pub cmd_code: u16,
pub payload: [u8; 1],
}
impl CcEvt {
pub fn write(&self, buf: &mut [u8]) {
unsafe {
let len = core::mem::size_of::<CcEvt>();
assert!(buf.len() >= len);
let self_ptr: *const CcEvt = self;
let self_buf_ptr: *const u8 = self_ptr.cast();
core::ptr::copy(self_buf_ptr, buf.as_mut_ptr(), len);
}
}
}
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct AsynchEvt {
sub_evt_code: u16,
payload: [u8; 1],
}
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct Evt {
pub evt_code: u8,
pub payload_len: u8,
pub payload: [u8; 1],
}
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct EvtSerial {
pub kind: u8,
pub evt: Evt,
}
#[derive(Copy, Clone, Default)]
pub struct EvtStub {
pub kind: u8,
pub evt_code: u8,
}
/// This format shall be used for all events (asynchronous and command response) reported
/// by the CPU2 except for the command response of a system command where the header is not there
/// and the format to be used shall be `EvtSerial`.
///
/// ### Note:
/// Be careful that the asynchronous events reported by the CPU2 on the system channel do
/// include the header and shall use `EvtPacket` format. Only the command response format on the
/// system channel is different.
#[derive(Copy, Clone, Default)]
#[repr(C, packed)]
pub struct EvtPacket {
pub header: PacketHeader,
pub evt_serial: EvtSerial,
}
impl EvtPacket {
pub fn kind(&self) -> u8 {
self.evt_serial.kind
}
pub fn evt(&self) -> &Evt {
&self.evt_serial.evt
}
}
/// smart pointer to the [`EvtPacket`] that will dispose of [`EvtPacket`] buffer automatically
/// on [`Drop`]
#[derive(Debug)]
pub struct EvtBox {
ptr: *mut EvtPacket,
}
unsafe impl Send for EvtBox {}
impl EvtBox {
pub(super) fn new(ptr: *mut EvtPacket) -> Self {
Self { ptr }
}
/// Returns information about the event
pub fn stub(&self) -> EvtStub {
unsafe {
let p_evt_stub = &(*self.ptr).evt_serial as *const _ as *const EvtStub;
ptr::read_volatile(p_evt_stub)
}
}
pub fn payload<'a>(&self) -> &'a [u8] {
unsafe {
let p_payload_len = &(*self.ptr).evt_serial.evt.payload_len as *const u8;
let p_payload = &(*self.ptr).evt_serial.evt.payload as *const u8;
let payload_len = ptr::read_volatile(p_payload_len);
slice::from_raw_parts(p_payload, payload_len as usize)
}
}
// TODO: bring back acl
// /// writes an underlying [`EvtPacket`] into the provided buffer.
// /// Returns the number of bytes that were written.
// /// Returns an error if event kind is unknown or if provided buffer size is not enough.
// #[allow(clippy::result_unit_err)]
// pub fn write(&self, buf: &mut [u8]) -> Result<usize, ()> {
// unsafe {
// let evt_kind = TlPacketType::try_from((*self.ptr).evt_serial.kind)?;
//
// let evt_data: *const EvtPacket = self.ptr.cast();
// let evt_serial: *const EvtSerial = &(*evt_data).evt_serial;
// let evt_serial_buf: *const u8 = evt_serial.cast();
//
// let acl_data: *const AclDataPacket = self.ptr.cast();
// let acl_serial: *const AclDataSerial = &(*acl_data).acl_data_serial;
// let acl_serial_buf: *const u8 = acl_serial.cast();
//
// if let TlPacketType::AclData = evt_kind {
// let len = (*acl_serial).length as usize + 5;
// if len > buf.len() {
// return Err(());
// }
//
// core::ptr::copy(evt_serial_buf, buf.as_mut_ptr(), len);
//
// Ok(len)
// } else {
// let len = (*evt_serial).evt.payload_len as usize + TL_EVT_HEADER_SIZE;
// if len > buf.len() {
// return Err(());
// }
//
// core::ptr::copy(acl_serial_buf, buf.as_mut_ptr(), len);
//
// Ok(len)
// }
// }
// }
//
// /// returns the size of a buffer required to hold this event
// #[allow(clippy::result_unit_err)]
// pub fn size(&self) -> Result<usize, ()> {
// unsafe {
// let evt_kind = TlPacketType::try_from((*self.ptr).evt_serial.kind)?;
//
// let evt_data: *const EvtPacket = self.ptr.cast();
// let evt_serial: *const EvtSerial = &(*evt_data).evt_serial;
//
// let acl_data: *const AclDataPacket = self.ptr.cast();
// let acl_serial: *const AclDataSerial = &(*acl_data).acl_data_serial;
//
// if let TlPacketType::AclData = evt_kind {
// Ok((*acl_serial).length as usize + 5)
// } else {
// Ok((*evt_serial).evt.payload_len as usize + TL_EVT_HEADER_SIZE)
// }
// }
// }
}
impl Drop for EvtBox {
fn drop(&mut self) {
trace!("evt box drop packet");
unsafe { mm::MemoryManager::drop_event_packet(self.ptr) };
}
}

3
embassy-cortex-m/src/fmt.rs → embassy-stm32-wpan/src/fmt.rs
View file

@ -195,9 +195,6 @@ macro_rules! unwrap {
}
}
#[cfg(feature = "defmt-timestamp-uptime")]
defmt::timestamp! {"{=u64:us}", crate::time::Instant::now().as_micros() }
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub struct NoneError;

255
embassy-stm32-wpan/src/lib.rs Normal file
View file

@ -0,0 +1,255 @@
#![no_std]
// This must go FIRST so that all the other modules see its macros.
pub mod fmt;
use core::mem::MaybeUninit;
use core::sync::atomic::{compiler_fence, Ordering};
use ble::Ble;
use cmd::CmdPacket;
use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
use embassy_stm32::interrupt;
use embassy_stm32::interrupt::typelevel::Interrupt;
use embassy_stm32::ipcc::{Config, Ipcc, ReceiveInterruptHandler, TransmitInterruptHandler};
use embassy_stm32::peripherals::IPCC;
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
use embassy_sync::channel::Channel;
use embassy_sync::signal::Signal;
use evt::{CcEvt, EvtBox};
use mm::MemoryManager;
use sys::Sys;
use tables::{
BleTable, DeviceInfoTable, Mac802_15_4Table, MemManagerTable, RefTable, SysTable, ThreadTable, TracesTable,
};
use unsafe_linked_list::LinkedListNode;
pub mod ble;
pub mod channels;
pub mod cmd;
pub mod consts;
pub mod evt;
pub mod mm;
pub mod shci;
pub mod sys;
pub mod tables;
pub mod unsafe_linked_list;
#[link_section = "TL_REF_TABLE"]
pub static mut TL_REF_TABLE: MaybeUninit<RefTable> = MaybeUninit::uninit();
#[link_section = "MB_MEM1"]
static mut TL_DEVICE_INFO_TABLE: MaybeUninit<DeviceInfoTable> = MaybeUninit::uninit();
#[link_section = "MB_MEM1"]
static mut TL_BLE_TABLE: MaybeUninit<BleTable> = MaybeUninit::uninit();
#[link_section = "MB_MEM1"]
static mut TL_THREAD_TABLE: MaybeUninit<ThreadTable> = MaybeUninit::uninit();
#[link_section = "MB_MEM1"]
static mut TL_SYS_TABLE: MaybeUninit<SysTable> = MaybeUninit::uninit();
#[link_section = "MB_MEM1"]
static mut TL_MEM_MANAGER_TABLE: MaybeUninit<MemManagerTable> = MaybeUninit::uninit();
#[link_section = "MB_MEM1"]
static mut TL_TRACES_TABLE: MaybeUninit<TracesTable> = MaybeUninit::uninit();
#[link_section = "MB_MEM1"]
static mut TL_MAC_802_15_4_TABLE: MaybeUninit<Mac802_15_4Table> = MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
static mut FREE_BUF_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
// Not in shared RAM
static mut LOCAL_FREE_BUF_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
#[allow(dead_code)] // Not used currently but reserved
#[link_section = "MB_MEM2"]
static mut TRACES_EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
type PacketHeader = LinkedListNode;
const TL_PACKET_HEADER_SIZE: usize = core::mem::size_of::<PacketHeader>();
const TL_EVT_HEADER_SIZE: usize = 3;
const TL_CS_EVT_SIZE: usize = core::mem::size_of::<evt::CsEvt>();
#[link_section = "MB_MEM2"]
static mut CS_BUFFER: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + TL_CS_EVT_SIZE]> =
MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
static mut EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
static mut SYSTEM_EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
pub static mut SYS_CMD_BUF: MaybeUninit<CmdPacket> = MaybeUninit::uninit();
/**
* Queue length of BLE Event
* This parameter defines the number of asynchronous events that can be stored in the HCI layer before
* being reported to the application. When a command is sent to the BLE core coprocessor, the HCI layer
* is waiting for the event with the Num_HCI_Command_Packets set to 1. The receive queue shall be large
* enough to store all asynchronous events received in between.
* When CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE is set to 27, this allow to store three 255 bytes long asynchronous events
* between the HCI command and its event.
* This parameter depends on the value given to CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE. When the queue size is to small,
* the system may hang if the queue is full with asynchronous events and the HCI layer is still waiting
* for a CC/CS event, In that case, the notification TL_BLE_HCI_ToNot() is called to indicate
* to the application a HCI command did not receive its command event within 30s (Default HCI Timeout).
*/
const CFG_TLBLE_EVT_QUEUE_LENGTH: usize = 5;
const CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE: usize = 255;
const TL_BLE_EVENT_FRAME_SIZE: usize = TL_EVT_HEADER_SIZE + CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE;
const fn divc(x: usize, y: usize) -> usize {
((x) + (y) - 1) / (y)
}
const POOL_SIZE: usize = CFG_TLBLE_EVT_QUEUE_LENGTH * 4 * divc(TL_PACKET_HEADER_SIZE + TL_BLE_EVENT_FRAME_SIZE, 4);
#[link_section = "MB_MEM2"]
static mut EVT_POOL: MaybeUninit<[u8; POOL_SIZE]> = MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
static mut SYS_SPARE_EVT_BUF: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + 255]> =
MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
static mut BLE_SPARE_EVT_BUF: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + 255]> =
MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
static mut BLE_CMD_BUFFER: MaybeUninit<CmdPacket> = MaybeUninit::uninit();
#[link_section = "MB_MEM2"]
// fuck these "magic" numbers from ST ---v---v
static mut HCI_ACL_DATA_BUFFER: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + 5 + 251]> = MaybeUninit::uninit();
// TODO: remove these items
#[allow(dead_code)]
/// current event that is produced during IPCC IRQ handler execution
/// on SYS channel
static EVT_CHANNEL: Channel<CriticalSectionRawMutex, EvtBox, 32> = Channel::new();
#[allow(dead_code)]
/// last received Command Complete event
static LAST_CC_EVT: Signal<CriticalSectionRawMutex, CcEvt> = Signal::new();
static STATE: Signal<CriticalSectionRawMutex, ()> = Signal::new();
pub struct TlMbox<'d> {
_ipcc: PeripheralRef<'d, IPCC>,
pub sys_subsystem: Sys,
pub mm_subsystem: MemoryManager,
pub ble_subsystem: Ble,
}
impl<'d> TlMbox<'d> {
pub fn init(
ipcc: impl Peripheral<P = IPCC> + 'd,
_irqs: impl interrupt::typelevel::Binding<interrupt::typelevel::IPCC_C1_RX, ReceiveInterruptHandler>
+ interrupt::typelevel::Binding<interrupt::typelevel::IPCC_C1_TX, TransmitInterruptHandler>,
config: Config,
) -> Self {
into_ref!(ipcc);
unsafe {
TL_REF_TABLE.as_mut_ptr().write_volatile(RefTable {
device_info_table: TL_DEVICE_INFO_TABLE.as_ptr(),
ble_table: TL_BLE_TABLE.as_ptr(),
thread_table: TL_THREAD_TABLE.as_ptr(),
sys_table: TL_SYS_TABLE.as_ptr(),
mem_manager_table: TL_MEM_MANAGER_TABLE.as_ptr(),
traces_table: TL_TRACES_TABLE.as_ptr(),
mac_802_15_4_table: TL_MAC_802_15_4_TABLE.as_ptr(),
// zigbee_table: TL_ZIGBEE_TABLE.as_ptr(),
// lld_tests_table: TL_LLD_TESTS_TABLE.as_ptr(),
// ble_lld_table: TL_BLE_LLD_TABLE.as_ptr(),
});
TL_SYS_TABLE
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
TL_DEVICE_INFO_TABLE
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
TL_BLE_TABLE
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
TL_THREAD_TABLE
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
TL_MEM_MANAGER_TABLE
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
TL_TRACES_TABLE
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
TL_MAC_802_15_4_TABLE
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
// TL_ZIGBEE_TABLE
// .as_mut_ptr()
// .write_volatile(MaybeUninit::zeroed().assume_init());
// TL_LLD_TESTS_TABLE
// .as_mut_ptr()
// .write_volatile(MaybeUninit::zeroed().assume_init());
// TL_BLE_LLD_TABLE
// .as_mut_ptr()
// .write_volatile(MaybeUninit::zeroed().assume_init());
EVT_POOL
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
SYS_SPARE_EVT_BUF
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
BLE_SPARE_EVT_BUF
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
{
BLE_CMD_BUFFER
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
HCI_ACL_DATA_BUFFER
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
CS_BUFFER
.as_mut_ptr()
.write_volatile(MaybeUninit::zeroed().assume_init());
}
}
compiler_fence(Ordering::SeqCst);
Ipcc::enable(config);
let sys = sys::Sys::new();
let ble = ble::Ble::new();
let mm = mm::MemoryManager::new();
// enable interrupts
interrupt::typelevel::IPCC_C1_RX::unpend();
interrupt::typelevel::IPCC_C1_TX::unpend();
unsafe { interrupt::typelevel::IPCC_C1_RX::enable() };
unsafe { interrupt::typelevel::IPCC_C1_TX::enable() };
STATE.reset();
Self {
_ipcc: ipcc,
sys_subsystem: sys,
ble_subsystem: ble,
mm_subsystem: mm,
}
}
}

77
embassy-stm32-wpan/src/mm.rs Normal file
View file

@ -0,0 +1,77 @@
//! Memory manager routines
use core::future::poll_fn;
use core::marker::PhantomData;
use core::task::Poll;
use cortex_m::interrupt;
use embassy_stm32::ipcc::Ipcc;
use embassy_sync::waitqueue::AtomicWaker;
use crate::evt::EvtPacket;
use crate::tables::MemManagerTable;
use crate::unsafe_linked_list::LinkedListNode;
use crate::{
channels, BLE_SPARE_EVT_BUF, EVT_POOL, FREE_BUF_QUEUE, LOCAL_FREE_BUF_QUEUE, POOL_SIZE, SYS_SPARE_EVT_BUF,
TL_MEM_MANAGER_TABLE,
};
static MM_WAKER: AtomicWaker = AtomicWaker::new();
pub struct MemoryManager {
phantom: PhantomData<MemoryManager>,
}
impl MemoryManager {
pub(crate) fn new() -> Self {
unsafe {
LinkedListNode::init_head(FREE_BUF_QUEUE.as_mut_ptr());
LinkedListNode::init_head(LOCAL_FREE_BUF_QUEUE.as_mut_ptr());
TL_MEM_MANAGER_TABLE.as_mut_ptr().write_volatile(MemManagerTable {
spare_ble_buffer: BLE_SPARE_EVT_BUF.as_ptr().cast(),
spare_sys_buffer: SYS_SPARE_EVT_BUF.as_ptr().cast(),
blepool: EVT_POOL.as_ptr().cast(),
blepoolsize: POOL_SIZE as u32,
pevt_free_buffer_queue: FREE_BUF_QUEUE.as_mut_ptr(),
traces_evt_pool: core::ptr::null(),
tracespoolsize: 0,
});
}
Self { phantom: PhantomData }
}
/// SAFETY: passing a pointer to something other than an event packet is UB
pub(crate) unsafe fn drop_event_packet(evt: *mut EvtPacket) {
interrupt::free(|_| unsafe {
LinkedListNode::insert_head(LOCAL_FREE_BUF_QUEUE.as_mut_ptr(), evt as *mut _);
});
MM_WAKER.wake();
}
pub async fn run_queue(&self) {
loop {
poll_fn(|cx| unsafe {
MM_WAKER.register(cx.waker());
if LinkedListNode::is_empty(LOCAL_FREE_BUF_QUEUE.as_mut_ptr()) {
Poll::Pending
} else {
Poll::Ready(())
}
})
.await;
Ipcc::send(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL, || {
interrupt::free(|_| unsafe {
// CS required while moving nodes
while let Some(node_ptr) = LinkedListNode::remove_head(LOCAL_FREE_BUF_QUEUE.as_mut_ptr()) {
LinkedListNode::insert_head(FREE_BUF_QUEUE.as_mut_ptr(), node_ptr);
}
})
})
.await;
}
}
}

54
embassy-stm32/src/tl_mbox/shci.rs → embassy-stm32-wpan/src/shci.rs
View file

@ -1,16 +1,10 @@
//! HCI commands for system channel
use core::{mem, slice};
use super::cmd::CmdPacket;
use super::consts::TlPacketType;
use super::{channels, TL_CS_EVT_SIZE, TL_EVT_HEADER_SIZE, TL_PACKET_HEADER_SIZE, TL_SYS_TABLE};
use crate::tl_mbox::ipcc::Ipcc;
use super::{TL_CS_EVT_SIZE, TL_EVT_HEADER_SIZE, TL_PACKET_HEADER_SIZE};
const SCHI_OPCODE_BLE_INIT: u16 = 0xfc66;
pub const TL_BLE_EVT_CS_PACKET_SIZE: usize = TL_EVT_HEADER_SIZE + TL_CS_EVT_SIZE;
#[allow(dead_code)]
const TL_BLE_EVT_CS_BUFFER_SIZE: usize = TL_PACKET_HEADER_SIZE + TL_BLE_EVT_CS_PACKET_SIZE;
pub const SCHI_OPCODE_BLE_INIT: u16 = 0xfc66;
#[derive(Clone, Copy)]
#[derive(Debug, Clone, Copy)]
#[repr(C, packed)]
pub struct ShciBleInitCmdParam {
/// NOT USED CURRENTLY
@ -38,6 +32,12 @@ pub struct ShciBleInitCmdParam {
pub hw_version: u8,
}
impl ShciBleInitCmdParam {
pub fn payload<'a>(&self) -> &'a [u8] {
unsafe { slice::from_raw_parts(self as *const _ as *const u8, mem::size_of::<Self>()) }
}
}
impl Default for ShciBleInitCmdParam {
fn default() -> Self {
Self {
@ -63,39 +63,19 @@ impl Default for ShciBleInitCmdParam {
}
}
#[derive(Clone, Copy, Default)]
#[derive(Debug, Clone, Copy, Default)]
#[repr(C, packed)]
pub struct ShciHeader {
metadata: [u32; 3],
}
#[derive(Clone, Copy)]
#[derive(Debug, Clone, Copy)]
#[repr(C, packed)]
pub struct ShciBleInitCmdPacket {
header: ShciHeader,
param: ShciBleInitCmdParam,
pub header: ShciHeader,
pub param: ShciBleInitCmdParam,
}
pub fn shci_ble_init(param: ShciBleInitCmdParam) {
let mut packet = ShciBleInitCmdPacket {
header: ShciHeader::default(),
param,
};
let packet_ptr: *mut ShciBleInitCmdPacket = &mut packet;
unsafe {
let cmd_ptr: *mut CmdPacket = packet_ptr.cast();
(*cmd_ptr).cmd_serial.cmd.cmd_code = SCHI_OPCODE_BLE_INIT;
(*cmd_ptr).cmd_serial.cmd.payload_len = core::mem::size_of::<ShciBleInitCmdParam>() as u8;
let cmd_buf = &mut *(*TL_SYS_TABLE.as_mut_ptr()).pcmd_buffer;
core::ptr::write(cmd_buf, *cmd_ptr);
cmd_buf.cmd_serial.ty = TlPacketType::SysCmd as u8;
Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL);
Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL, true);
}
}
pub const TL_BLE_EVT_CS_PACKET_SIZE: usize = TL_EVT_HEADER_SIZE + TL_CS_EVT_SIZE;
#[allow(dead_code)] // Not used currently but reserved
const TL_BLE_EVT_CS_BUFFER_SIZE: usize = TL_PACKET_HEADER_SIZE + TL_BLE_EVT_CS_PACKET_SIZE;

70
embassy-stm32-wpan/src/sys.rs Normal file
View file

@ -0,0 +1,70 @@
use core::marker::PhantomData;
use crate::cmd::CmdPacket;
use crate::consts::TlPacketType;
use crate::evt::EvtBox;
use crate::shci::{ShciBleInitCmdParam, SCHI_OPCODE_BLE_INIT};
use crate::tables::{SysTable, WirelessFwInfoTable};
use crate::unsafe_linked_list::LinkedListNode;
use crate::{channels, Ipcc, SYSTEM_EVT_QUEUE, SYS_CMD_BUF, TL_DEVICE_INFO_TABLE, TL_SYS_TABLE};
pub struct Sys {
phantom: PhantomData<Sys>,
}
impl Sys {
/// TL_Sys_Init
pub(crate) fn new() -> Self {
unsafe {
LinkedListNode::init_head(SYSTEM_EVT_QUEUE.as_mut_ptr());
TL_SYS_TABLE.as_mut_ptr().write_volatile(SysTable {
pcmd_buffer: SYS_CMD_BUF.as_mut_ptr(),
sys_queue: SYSTEM_EVT_QUEUE.as_ptr(),
});
}
Self { phantom: PhantomData }
}
/// Returns CPU2 wireless firmware information (if present).
pub fn wireless_fw_info(&self) -> Option<WirelessFwInfoTable> {
let info = unsafe { TL_DEVICE_INFO_TABLE.as_mut_ptr().read_volatile().wireless_fw_info_table };
// Zero version indicates that CPU2 wasn't active and didn't fill the information table
if info.version != 0 {
Some(info)
} else {
None
}
}
pub fn write(&self, opcode: u16, payload: &[u8]) {
unsafe {
CmdPacket::write_into(SYS_CMD_BUF.as_mut_ptr(), TlPacketType::SysCmd, opcode, payload);
}
}
pub async fn shci_c2_ble_init(&self, param: ShciBleInitCmdParam) {
debug!("sending SHCI");
Ipcc::send(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL, || {
self.write(SCHI_OPCODE_BLE_INIT, param.payload());
})
.await;
Ipcc::flush(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL).await;
}
/// `HW_IPCC_SYS_EvtNot`
pub async fn read(&self) -> EvtBox {
Ipcc::receive(channels::cpu2::IPCC_SYSTEM_EVENT_CHANNEL, || unsafe {
if let Some(node_ptr) = LinkedListNode::remove_head(SYSTEM_EVT_QUEUE.as_mut_ptr()) {
Some(EvtBox::new(node_ptr.cast()))
} else {
None
}
})
.await
}
}

175
embassy-stm32-wpan/src/tables.rs Normal file
View file

@ -0,0 +1,175 @@
use bit_field::BitField;
use crate::cmd::{AclDataPacket, CmdPacket};
use crate::unsafe_linked_list::LinkedListNode;
#[derive(Debug, Copy, Clone)]
#[repr(C, packed)]
pub struct SafeBootInfoTable {
version: u32,
}
#[derive(Debug, Copy, Clone)]
#[repr(C, packed)]
pub struct RssInfoTable {
pub version: u32,
pub memory_size: u32,
pub rss_info: u32,
}
/**
* Version
* [0:3] = Build - 0: Untracked - 15:Released - x: Tracked version
* [4:7] = branch - 0: Mass Market - x: ...
* [8:15] = Subversion
* [16:23] = Version minor
* [24:31] = Version major
*
* Memory Size
* [0:7] = Flash ( Number of 4k sector)
* [8:15] = Reserved ( Shall be set to 0 - may be used as flash extension )
* [16:23] = SRAM2b ( Number of 1k sector)
* [24:31] = SRAM2a ( Number of 1k sector)
*/
#[derive(Debug, Copy, Clone)]
#[repr(C, packed)]
pub struct WirelessFwInfoTable {
pub version: u32,
pub memory_size: u32,
pub thread_info: u32,
pub ble_info: u32,
}
impl WirelessFwInfoTable {
pub fn version_major(&self) -> u8 {
let version = self.version;
(version.get_bits(24..31) & 0xff) as u8
}
pub fn version_minor(&self) -> u8 {
let version = self.version;
(version.clone().get_bits(16..23) & 0xff) as u8
}
pub fn subversion(&self) -> u8 {
let version = self.version;
(version.clone().get_bits(8..15) & 0xff) as u8
}
/// Size of FLASH, expressed in number of 4K sectors.
pub fn flash_size(&self) -> u8 {
let memory_size = self.memory_size;
(memory_size.clone().get_bits(0..7) & 0xff) as u8
}
/// Size of SRAM2a, expressed in number of 1K sectors.
pub fn sram2a_size(&self) -> u8 {
let memory_size = self.memory_size;
(memory_size.clone().get_bits(24..31) & 0xff) as u8
}
/// Size of SRAM2b, expressed in number of 1K sectors.
pub fn sram2b_size(&self) -> u8 {
let memory_size = self.memory_size;
(memory_size.clone().get_bits(16..23) & 0xff) as u8
}
}
#[derive(Debug, Clone)]
#[repr(C, align(4))]
pub struct DeviceInfoTable {
pub safe_boot_info_table: SafeBootInfoTable,
pub rss_info_table: RssInfoTable,
pub wireless_fw_info_table: WirelessFwInfoTable,
}
#[derive(Debug)]
#[repr(C, align(4))]
pub struct BleTable {
pub pcmd_buffer: *mut CmdPacket,
pub pcs_buffer: *const u8,
pub pevt_queue: *const u8,
pub phci_acl_data_buffer: *mut AclDataPacket,
}
#[derive(Debug)]
#[repr(C, align(4))]
pub struct ThreadTable {
pub nostack_buffer: *const u8,
pub clicmdrsp_buffer: *const u8,
pub otcmdrsp_buffer: *const u8,
}
// TODO: use later
#[derive(Debug)]
#[repr(C, align(4))]
pub struct LldTestsTable {
pub clicmdrsp_buffer: *const u8,
pub m0cmd_buffer: *const u8,
}
// TODO: use later
#[derive(Debug)]
#[repr(C, align(4))]
pub struct BleLldTable {
pub cmdrsp_buffer: *const u8,
pub m0cmd_buffer: *const u8,
}
// TODO: use later
#[derive(Debug)]
#[repr(C, align(4))]
pub struct ZigbeeTable {
pub notif_m0_to_m4_buffer: *const u8,
pub appli_cmd_m4_to_m0_bufer: *const u8,
pub request_m0_to_m4_buffer: *const u8,
}
#[derive(Debug)]
#[repr(C, align(4))]
pub struct SysTable {
pub pcmd_buffer: *mut CmdPacket,
pub sys_queue: *const LinkedListNode,
}
#[derive(Debug)]
#[repr(C, align(4))]
pub struct MemManagerTable {
pub spare_ble_buffer: *const u8,
pub spare_sys_buffer: *const u8,
pub blepool: *const u8,
pub blepoolsize: u32,
pub pevt_free_buffer_queue: *mut LinkedListNode,
pub traces_evt_pool: *const u8,
pub tracespoolsize: u32,
}
#[derive(Debug)]
#[repr(C, align(4))]
pub struct TracesTable {
pub traces_queue: *const u8,
}
#[derive(Debug)]
#[repr(C, align(4))]
pub struct Mac802_15_4Table {
pub p_cmdrsp_buffer: *const u8,
pub p_notack_buffer: *const u8,
pub evt_queue: *const u8,
}
/// Reference table. Contains pointers to all other tables.
#[derive(Debug, Copy, Clone)]
#[repr(C)]
pub struct RefTable {
pub device_info_table: *const DeviceInfoTable,
pub ble_table: *const BleTable,
pub thread_table: *const ThreadTable,
pub sys_table: *const SysTable,
pub mem_manager_table: *const MemManagerTable,
pub traces_table: *const TracesTable,
pub mac_802_15_4_table: *const Mac802_15_4Table,
}

257
embassy-stm32-wpan/src/unsafe_linked_list.rs Normal file
View file

@ -0,0 +1,257 @@
//! Unsafe linked list.
//! Translated from ST's C by `c2rust` tool.
#![allow(
dead_code,
mutable_transmutes,
non_camel_case_types,
non_snake_case,
non_upper_case_globals,
unused_assignments,
unused_mut
)]
use core::ptr;
use cortex_m::interrupt;
#[derive(Copy, Clone)]
#[repr(C, packed(4))]
pub struct LinkedListNode {
pub next: *mut LinkedListNode,
pub prev: *mut LinkedListNode,
}
impl Default for LinkedListNode {
fn default() -> Self {
LinkedListNode {
next: core::ptr::null_mut(),
prev: core::ptr::null_mut(),
}
}
}
impl LinkedListNode {
pub unsafe fn init_head(mut p_list_head: *mut LinkedListNode) {
ptr::write_volatile(
p_list_head,
LinkedListNode {
next: p_list_head,
prev: p_list_head,
},
);
}
pub unsafe fn is_empty(mut p_list_head: *mut LinkedListNode) -> bool {
interrupt::free(|_| ptr::read_volatile(p_list_head).next == p_list_head)
}
/// Insert `node` after `list_head` and before the next node
pub unsafe fn insert_head(mut p_list_head: *mut LinkedListNode, mut p_node: *mut LinkedListNode) {
interrupt::free(|_| {
let mut list_head = ptr::read_volatile(p_list_head);
if p_list_head != list_head.next {
let mut node_next = ptr::read_volatile(list_head.next);
let node = LinkedListNode {
next: list_head.next,
prev: p_list_head,
};
list_head.next = p_node;
node_next.prev = p_node;
// All nodes must be written because they will all be seen by another core
ptr::write_volatile(p_node, node);
ptr::write_volatile(node.next, node_next);
ptr::write_volatile(p_list_head, list_head);
} else {
let node = LinkedListNode {
next: list_head.next,
prev: p_list_head,
};
list_head.next = p_node;
list_head.prev = p_node;
// All nodes must be written because they will all be seen by another core
ptr::write_volatile(p_node, node);
ptr::write_volatile(p_list_head, list_head);
}
});
}
/// Insert `node` before `list_tail` and after the second-to-last node
pub unsafe fn insert_tail(mut p_list_tail: *mut LinkedListNode, mut p_node: *mut LinkedListNode) {
interrupt::free(|_| {
let mut list_tail = ptr::read_volatile(p_list_tail);
if p_list_tail != list_tail.prev {
let mut node_prev = ptr::read_volatile(list_tail.prev);
let node = LinkedListNode {
next: p_list_tail,
prev: list_tail.prev,
};
list_tail.prev = p_node;
node_prev.next = p_node;
// All nodes must be written because they will all be seen by another core
ptr::write_volatile(p_node, node);
ptr::write_volatile(node.prev, node_prev);
ptr::write_volatile(p_list_tail, list_tail);
} else {
let node = LinkedListNode {
next: p_list_tail,
prev: list_tail.prev,
};
list_tail.prev = p_node;
list_tail.next = p_node;
// All nodes must be written because they will all be seen by another core
ptr::write_volatile(p_node, node);
ptr::write_volatile(p_list_tail, list_tail);
}
});
}
/// Remove `node` from the linked list
pub unsafe fn remove_node(mut p_node: *mut LinkedListNode) {
interrupt::free(|_| {
// trace!("remove node: {:x}", p_node);
// apparently linked list nodes are not always aligned.
// if more hardfaults occur, more of these may need to be converted to unaligned.
let node = ptr::read_unaligned(p_node);
// trace!("remove node: prev/next {:x}/{:x}", node.prev, node.next);
if node.next != node.prev {
let mut node_next = ptr::read_volatile(node.next);
let mut node_prev = ptr::read_volatile(node.prev);
node_prev.next = node.next;
node_next.prev = node.prev;
ptr::write_volatile(node.next, node_next);
ptr::write_volatile(node.prev, node_prev);
} else {
let mut node_next = ptr::read_volatile(node.next);
node_next.next = node.next;
node_next.prev = node.prev;
ptr::write_volatile(node.next, node_next);
}
});
}
/// Remove `list_head` and return a pointer to the `node`.
pub unsafe fn remove_head(mut p_list_head: *mut LinkedListNode) -> Option<*mut LinkedListNode> {
interrupt::free(|_| {
let list_head = ptr::read_volatile(p_list_head);
if list_head.next == p_list_head {
None
} else {
// Allowed because a removed node is not seen by another core
let p_node = list_head.next;
Self::remove_node(p_node);
Some(p_node)
}
})
}
/// Remove `list_tail` and return a pointer to the `node`.
pub unsafe fn remove_tail(mut p_list_tail: *mut LinkedListNode) -> Option<*mut LinkedListNode> {
interrupt::free(|_| {
let list_tail = ptr::read_volatile(p_list_tail);
if list_tail.prev == p_list_tail {
None
} else {
// Allowed because a removed node is not seen by another core
let p_node = list_tail.prev;
Self::remove_node(p_node);
Some(p_node)
}
})
}
pub unsafe fn insert_node_after(mut node: *mut LinkedListNode, mut ref_node: *mut LinkedListNode) {
interrupt::free(|_| {
(*node).next = (*ref_node).next;
(*node).prev = ref_node;
(*ref_node).next = node;
(*(*node).next).prev = node;
});
todo!("this function has not been converted to volatile semantics");
}
pub unsafe fn insert_node_before(mut node: *mut LinkedListNode, mut ref_node: *mut LinkedListNode) {
interrupt::free(|_| {
(*node).next = ref_node;
(*node).prev = (*ref_node).prev;
(*ref_node).prev = node;
(*(*node).prev).next = node;
});
todo!("this function has not been converted to volatile semantics");
}
pub unsafe fn get_size(mut list_head: *mut LinkedListNode) -> usize {
interrupt::free(|_| {
let mut size = 0;
let mut temp: *mut LinkedListNode = core::ptr::null_mut::<LinkedListNode>();
temp = (*list_head).next;
while temp != list_head {
size += 1;
temp = (*temp).next
}
size
});
todo!("this function has not been converted to volatile semantics");
}
pub unsafe fn get_next_node(mut p_ref_node: *mut LinkedListNode) -> *mut LinkedListNode {
interrupt::free(|_| {
let ref_node = ptr::read_volatile(p_ref_node);
// Allowed because a removed node is not seen by another core
ref_node.next
})
}
pub unsafe fn get_prev_node(mut p_ref_node: *mut LinkedListNode) -> *mut LinkedListNode {
interrupt::free(|_| {
let ref_node = ptr::read_volatile(p_ref_node);
// Allowed because a removed node is not seen by another core
ref_node.prev
})
}
}
#[allow(dead_code)]
unsafe fn debug_linked_list(mut p_node: *mut LinkedListNode) {
info!("iterating list from node: {:x}", p_node);
let mut p_current_node = p_node;
let mut i = 0;
loop {
let current_node = ptr::read_volatile(p_current_node);
info!(
"node (prev, current, next): {:x}, {:x}, {:x}",
current_node.prev, p_current_node, current_node.next
);
i += 1;
if i > 10 || current_node.next == p_node {
break;
}
p_current_node = current_node.next;
}
}

16
embassy-stm32/Cargo.toml
View file

@ -32,11 +32,9 @@ flavors = [
[dependencies]
embassy-sync = { version = "0.2.0", path = "../embassy-sync" }
embassy-executor = { version = "0.2.0", path = "../embassy-executor" }
embassy-time = { version = "0.1.0", path = "../embassy-time", optional = true }
embassy-futures = { version = "0.1.0", path = "../embassy-futures" }
embassy-cortex-m = { version = "0.1.0", path = "../embassy-cortex-m", features = ["prio-bits-4"]}
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common" }
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common", features = ["cortex-m", "prio-bits-4"] }
embassy-embedded-hal = {version = "0.1.0", path = "../embassy-embedded-hal" }
embassy-net-driver = { version = "0.1.0", path = "../embassy-net-driver" }
embassy-usb-driver = {version = "0.1.0", path = "../embassy-usb-driver", optional = true }
@ -59,7 +57,7 @@ sdio-host = "0.5.0"
embedded-sdmmc = { git = "https://github.com/embassy-rs/embedded-sdmmc-rs", rev = "a4f293d3a6f72158385f79c98634cb8a14d0d2fc", optional = true }
critical-section = "1.1"
atomic-polyfill = "1.0.1"
stm32-metapac = "9"
stm32-metapac = "10"
vcell = "0.1.3"
bxcan = "0.7.0"
nb = "1.0.0"
@ -76,11 +74,13 @@ critical-section = { version = "1.1", features = ["std"] }
[build-dependencies]
proc-macro2 = "1.0.36"
quote = "1.0.15"
stm32-metapac = { version = "9", default-features = false, features = ["metadata"]}
stm32-metapac = { version = "10", default-features = false, features = ["metadata"]}
[features]
default = ["stm32-metapac/rt"]
defmt = ["dep:defmt", "bxcan/unstable-defmt", "embassy-sync/defmt", "embassy-executor/defmt", "embassy-embedded-hal/defmt", "embassy-hal-common/defmt", "embedded-io?/defmt", "embassy-usb-driver?/defmt", "embassy-net-driver/defmt"]
default = ["rt"]
rt = ["stm32-metapac/rt"]
defmt = ["dep:defmt", "bxcan/unstable-defmt", "embassy-sync/defmt", "embassy-embedded-hal/defmt", "embassy-hal-common/defmt", "embedded-io?/defmt", "embassy-usb-driver?/defmt", "embassy-net-driver/defmt"]
memory-x = ["stm32-metapac/memory-x"]
exti = []
@ -99,7 +99,7 @@ time-driver-tim12 = ["_time-driver"]
time-driver-tim15 = ["_time-driver"]
# Enable nightly-only features
nightly = ["embassy-executor/nightly", "embedded-hal-1", "embedded-hal-async", "embedded-storage-async", "dep:embedded-io", "dep:embassy-usb-driver", "embassy-embedded-hal/nightly"]
nightly = ["embedded-hal-1", "embedded-hal-async", "embedded-storage-async", "dep:embedded-io", "dep:embassy-usb-driver", "embassy-embedded-hal/nightly"]
# Reexport stm32-metapac at `embassy_stm32::pac`.
# This is unstable because semver-minor (non-breaking) releases of embassy-stm32 may major-bump (breaking) the stm32-metapac version.

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