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Move most of DMA out of gen.py.

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This commit is contained in:
Bob McWhirter 2021-06-03 14:53:48 -04:00
parent 240616aa72
commit b4dca64e20
2 changed files with 27 additions and 7 deletions
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5
embassy-stm32/gen.py
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@ -60,15 +60,10 @@ with open(output_file, 'w') as f:
if block_mod == 'dma': if block_mod == 'dma':
custom_singletons = True custom_singletons = True
num_dmas += 1
dma_num = int(name[3:])-1 # substract 1 because we want DMA1=0, DMA2=1
for ch_num in range(8): for ch_num in range(8):
channel = f'{name}_CH{ch_num}' channel = f'{name}_CH{ch_num}'
singletons.append(channel) singletons.append(channel)
f.write(f'impl_dma_channel!({channel}, {dma_num}, {ch_num});')
if not custom_singletons: if not custom_singletons:
singletons.append(name) singletons.append(name)

29
embassy-stm32/src/dma/mod.rs
View File

@ -8,6 +8,7 @@ mod _version;
pub use _version::*; pub use _version::*;
use crate::pac; use crate::pac;
use crate::peripherals;
pub(crate) mod sealed { pub(crate) mod sealed {
use super::*; use super::*;
@ -31,8 +32,8 @@ pub trait Channel: sealed::Channel + Sized {}
macro_rules! impl_dma_channel { macro_rules! impl_dma_channel {
($type:ident, $dma_num:expr, $ch_num:expr) => { ($type:ident, $dma_num:expr, $ch_num:expr) => {
impl crate::dma::Channel for peripherals::$type {} impl Channel for peripherals::$type {}
impl crate::dma::sealed::Channel for peripherals::$type { impl sealed::Channel for peripherals::$type {
#[inline] #[inline]
fn num(&self) -> u8 { fn num(&self) -> u8 {
$dma_num * 8 + $ch_num $dma_num * 8 + $ch_num
@ -40,3 +41,27 @@ macro_rules! impl_dma_channel {
} }
}; };
} }
crate::pac::peripherals!(
(dma,DMA1) => {
impl_dma_channel!(DMA1_CH0, 0, 0);
impl_dma_channel!(DMA1_CH1, 0, 1);
impl_dma_channel!(DMA1_CH2, 0, 2);
impl_dma_channel!(DMA1_CH3, 0, 3);
impl_dma_channel!(DMA1_CH4, 0, 4);
impl_dma_channel!(DMA1_CH5, 0, 5);
impl_dma_channel!(DMA1_CH6, 0, 6);
impl_dma_channel!(DMA1_CH7, 0, 7);
};
(dma,DMA2) => {
impl_dma_channel!(DMA2_CH0, 1, 0);
impl_dma_channel!(DMA2_CH1, 1, 1);
impl_dma_channel!(DMA2_CH2, 1, 2);
impl_dma_channel!(DMA2_CH3, 1, 3);
impl_dma_channel!(DMA2_CH4, 1, 4);
impl_dma_channel!(DMA2_CH5, 1, 5);
impl_dma_channel!(DMA2_CH6, 1, 6);
impl_dma_channel!(DMA2_CH7, 1, 7);
};
);