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Move regs trait implementation into generated pac

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This allows handling devices that don't have DMA2
This commit is contained in:
Ulf Lilleengen 2021-05-19 10:42:10 +02:00 committed by Dario Nieuwenhuis
parent 0cd3236fa3
commit 9fa5a2920f
2 changed files with 7 additions and 9 deletions
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2
embassy-stm32/gen.py
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@ -151,7 +151,7 @@ for chip in chips.values():
for ch_num in range(8):
channel = f'{name}_CH{ch_num}'
peripheral_names.append(channel)
f.write(f'impl_dma_channel!({channel}, {dma_num}, {ch_num});')
f.write(f'impl_dma_channel!({name}, {channel}, {dma_num}, {ch_num});')
if peri['block'] == 'sdmmc_v2/SDMMC':
f.write(f'impl_sdmmc!({name});')

14
embassy-stm32/src/dma/mod.rs
View File

@ -20,26 +20,24 @@ pub(crate) mod sealed {
fn ch_num(&self) -> u8 {
self.num() % 8
}
fn regs(&self) -> pac::dma::Dma {
match self.dma_num() {
0 => pac::DMA1,
_ => pac::DMA2,
}
}
fn regs(&self) -> pac::dma::Dma;
}
}
pub trait Channel: sealed::Channel + Sized {}
macro_rules! impl_dma_channel {
($type:ident, $dma_num:expr, $ch_num:expr) => {
($name:ident, $type:ident, $dma_num:expr, $ch_num:expr) => {
impl crate::dma::Channel for peripherals::$type {}
impl crate::dma::sealed::Channel for peripherals::$type {
#[inline]
fn num(&self) -> u8 {
$dma_num * 8 + $ch_num
}
fn regs(&self) -> dma::Dma {
$name
}
}
};
}