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|
#![macro_use]
macro_rules! peri_trait {
(
$(irqs: [$($irq:ident),*],)?
) => {
#[allow(private_interfaces)]
pub(crate) trait SealedInstance {
#[allow(unused)]
fn info() -> &'static Info;
#[allow(unused)]
fn state() -> &'static State;
}
/// Peripheral instance trait.
#[allow(private_bounds)]
pub trait Instance: SealedInstance + crate::PeripheralType + crate::rcc::RccPeripheral {
$($(
/// Interrupt for this peripheral.
type $irq: crate::interrupt::typelevel::Interrupt;
)*)?
}
};
}
macro_rules! peri_trait_impl {
($instance:ident, $info:expr) => {
#[allow(private_interfaces)]
impl SealedInstance for crate::peripherals::$instance {
fn info() -> &'static Info {
static INFO: Info = $info;
&INFO
}
fn state() -> &'static State {
static STATE: State = State::new();
&STATE
}
}
impl Instance for crate::peripherals::$instance {}
};
}
macro_rules! pin_trait {
($signal:ident, $instance:path $(, $mode:path)?) => {
#[doc = concat!(stringify!($signal), " pin trait")]
pub trait $signal<T: $instance $(, M: $mode)?>: crate::gpio::Pin {
#[doc = concat!("Get the AF number needed to use this pin as ", stringify!($signal))]
fn af_num(&self) -> u8;
}
};
}
macro_rules! pin_trait_impl {
(crate::$mod:ident::$trait:ident$(<$mode:ident>)?, $instance:ident, $pin:ident, $af:expr) => {
impl crate::$mod::$trait<crate::peripherals::$instance $(, crate::$mod::$mode)?> for crate::peripherals::$pin {
fn af_num(&self) -> u8 {
$af
}
}
};
}
#[allow(unused_macros)]
macro_rules! sel_trait_impl {
(crate::$mod:ident::$trait:ident$(<$mode:ident>)?, $instance:ident, $pin:ident, $sel:expr) => {
impl crate::$mod::$trait<crate::peripherals::$instance $(, crate::$mod::$mode)?> for crate::peripherals::$pin {
fn sel(&self) -> u8 {
$sel
}
}
};
}
// ====================
macro_rules! dma_trait {
($signal:ident, $instance:path$(, $mode:path)?) => {
#[doc = concat!(stringify!($signal), " DMA request trait")]
pub trait $signal<T: $instance $(, M: $mode)?>: crate::dma::Channel {
#[doc = concat!("Get the DMA request number needed to use this channel as", stringify!($signal))]
/// Note: in some chips, ST calls this the "channel", and calls channels "streams".
/// `embassy-stm32` always uses the "channel" and "request number" names.
fn request(&self) -> crate::dma::Request;
#[doc = "Remap the DMA channel"]
fn remap(&self);
}
};
}
#[allow(unused)]
macro_rules! dma_trait_impl {
(crate::$mod:ident::$trait:ident$(<$mode:ident>)?, $instance:ident, $channel:ident, $request:expr, $remap:expr) => {
impl crate::$mod::$trait<crate::peripherals::$instance $(, crate::$mod::$mode)?> for crate::peripherals::$channel {
fn request(&self) -> crate::dma::Request {
$request
}
fn remap(&self) {
critical_section::with(|_| {
#[allow(unused_unsafe)]
unsafe {
$remap;
}
});
}
}
};
}
#[allow(unused)]
macro_rules! new_dma_nonopt {
($name:ident) => {{
let dma = $name;
let request = dma.request();
crate::dma::ChannelAndRequest {
channel: dma.into(),
request,
}
}};
}
macro_rules! new_dma {
($name:ident) => {{
let dma = $name;
dma.remap();
let request = dma.request();
Some(crate::dma::ChannelAndRequest {
channel: dma.into(),
request,
})
}};
}
macro_rules! new_pin {
($name:ident, $af_type:expr) => {{
let pin = $name;
pin.set_as_af(pin.af_num(), $af_type);
Some(pin.into())
}};
}
|
