max/embassy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove Drop on Flash and FlashLayout and propage lifetime to region types

Browse Source 
This allows the user to "split" the FlashRegions struct into each region
This commit is contained in:
Rasmus Melchior Jacobsen
2023-04-05 10:27:13 +02:00
parent e2e15e436a
commit 95b31cf2db
3 changed files with 31 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
embassy-stm32/src/flash/f4.rs
View File

@ -45,34 +45,36 @@ mod alt_regions {
&ALT_BANK2_REGION3,
];
pub type AltBank1Region1 = Bank1Region1;
pub type AltBank1Region2 = Bank1Region2;
pub struct AltBank1Region3(&'static FlashRegion);
pub struct AltBank2Region1(&'static FlashRegion);
pub struct AltBank2Region2(&'static FlashRegion);
pub struct AltBank2Region3(&'static FlashRegion);
pub type AltBank1Region1<'d> = Bank1Region1<'d>;
pub type AltBank1Region2<'d> = Bank1Region2<'d>;
pub struct AltBank1Region3<'d>(pub &'static FlashRegion, PeripheralRef<'d, FLASH>);
pub struct AltBank2Region1<'d>(pub &'static FlashRegion, PeripheralRef<'d, FLASH>);
pub struct AltBank2Region2<'d>(pub &'static FlashRegion, PeripheralRef<'d, FLASH>);
pub struct AltBank2Region3<'d>(pub &'static FlashRegion, PeripheralRef<'d, FLASH>);
pub struct AltFlashLayout<'d> {
_inner: PeripheralRef<'d, FLASH>,
pub bank1_region1: AltBank1Region1,
pub bank1_region2: AltBank1Region2,
pub bank1_region3: AltBank1Region3,
pub bank2_region1: AltBank2Region1,
pub bank2_region2: AltBank2Region2,
pub bank2_region3: AltBank2Region3,
pub bank1_region1: AltBank1Region1<'d>,
pub bank1_region2: AltBank1Region2<'d>,
pub bank1_region3: AltBank1Region3<'d>,
pub bank2_region1: AltBank2Region1<'d>,
pub bank2_region2: AltBank2Region2<'d>,
pub bank2_region3: AltBank2Region3<'d>,
}
impl<'d> Flash<'d> {
pub fn into_alt_regions(self) -> AltFlashLayout<'d> {
unsafe { crate::pac::FLASH.optcr().modify(|r| r.set_db1m(true)) };
// SAFETY: We never expose the cloned peripheral references, and their instance is not public.
// Also, all flash region operations are protected with a cs.
let mut p = self.release();
AltFlashLayout {
_inner: self.release(),
bank1_region1: Bank1Region1(&BANK1_REGION1),
bank1_region2: Bank1Region2(&BANK1_REGION2),
bank1_region3: AltBank1Region3(&ALT_BANK1_REGION3),
bank2_region1: AltBank2Region1(&ALT_BANK2_REGION1),
bank2_region2: AltBank2Region2(&ALT_BANK2_REGION2),
bank2_region3: AltBank2Region3(&ALT_BANK2_REGION3),
bank1_region1: Bank1Region1(&BANK1_REGION1, unsafe { p.clone_unchecked() }),
bank1_region2: Bank1Region2(&BANK1_REGION2, unsafe { p.clone_unchecked() }),
bank1_region3: AltBank1Region3(&ALT_BANK1_REGION3, unsafe { p.clone_unchecked() }),
bank2_region1: AltBank2Region1(&ALT_BANK2_REGION1, unsafe { p.clone_unchecked() }),
bank2_region2: AltBank2Region2(&ALT_BANK2_REGION2, unsafe { p.clone_unchecked() }),
bank2_region3: AltBank2Region3(&ALT_BANK2_REGION3, unsafe { p.clone_unchecked() }),
}
}
}