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Remove BootFlash borrow

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Compiler will infer a different lifetime for BootFlash than for the
borrowed flash, which makes it require more type annotations than if it
was just owning the type. Since it doesn't really matter if it owns or
borrows in practical use, change it to own so that it simplifies usage.
This commit is contained in:
Ulf Lilleengen 2022-09-20 09:42:40 +02:00
parent 6663390224
commit d0fe654c82
3 changed files with 16 additions and 17 deletions
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24
embassy-boot/boot/src/lib.rs
View File

@ -447,24 +447,24 @@ where
}
/// A flash wrapper implementing the Flash and embedded_storage traits.
pub struct BootFlash<'a, F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8 = 0xFF>
pub struct BootFlash<F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8 = 0xFF>
where
F: NorFlash + ReadNorFlash,
{
flash: &'a mut F,
flash: F,
}
impl<'a, F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> BootFlash<'a, F, BLOCK_SIZE, ERASE_VALUE>
impl<F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> BootFlash<F, BLOCK_SIZE, ERASE_VALUE>
where
F: NorFlash + ReadNorFlash,
{
/// Create a new instance of a bootable flash
pub fn new(flash: &'a mut F) -> Self {
pub fn new(flash: F) -> Self {
Self { flash }
}
}
impl<'a, F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> Flash for BootFlash<'a, F, BLOCK_SIZE, ERASE_VALUE>
impl<F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> Flash for BootFlash<F, BLOCK_SIZE, ERASE_VALUE>
where
F: NorFlash + ReadNorFlash,
{
@ -472,14 +472,14 @@ where
const ERASE_VALUE: u8 = ERASE_VALUE;
}
impl<'a, F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> ErrorType for BootFlash<'a, F, BLOCK_SIZE, ERASE_VALUE>
impl<F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> ErrorType for BootFlash<F, BLOCK_SIZE, ERASE_VALUE>
where
F: ReadNorFlash + NorFlash,
{
type Error = F::Error;
}
impl<'a, F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> NorFlash for BootFlash<'a, F, BLOCK_SIZE, ERASE_VALUE>
impl<F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> NorFlash for BootFlash<F, BLOCK_SIZE, ERASE_VALUE>
where
F: ReadNorFlash + NorFlash,
{
@ -487,26 +487,26 @@ where
const ERASE_SIZE: usize = F::ERASE_SIZE;
fn erase(&mut self, from: u32, to: u32) -> Result<(), Self::Error> {
F::erase(self.flash, from, to)
F::erase(&mut self.flash, from, to)
}
fn write(&mut self, offset: u32, bytes: &[u8]) -> Result<(), Self::Error> {
F::write(self.flash, offset, bytes)
F::write(&mut self.flash, offset, bytes)
}
}
impl<'a, F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> ReadNorFlash for BootFlash<'a, F, BLOCK_SIZE, ERASE_VALUE>
impl<F, const BLOCK_SIZE: usize, const ERASE_VALUE: u8> ReadNorFlash for BootFlash<F, BLOCK_SIZE, ERASE_VALUE>
where
F: ReadNorFlash + NorFlash,
{
const READ_SIZE: usize = F::READ_SIZE;
fn read(&mut self, offset: u32, bytes: &mut [u8]) -> Result<(), Self::Error> {
F::read(self.flash, offset, bytes)
F::read(&mut self.flash, offset, bytes)
}
fn capacity(&self) -> usize {
F::capacity(self.flash)
F::capacity(&self.flash)
}
}

2
examples/boot/bootloader/nrf/src/main.rs
View File

@ -21,7 +21,7 @@ fn main() -> ! {
let mut bl = BootLoader::default();
let start = bl.prepare(&mut SingleFlashConfig::new(&mut BootFlash::<_, 4096>::new(
&mut WatchdogFlash::start(Nvmc::new(p.NVMC), p.WDT, 5),
WatchdogFlash::start(Nvmc::new(p.NVMC), p.WDT, 5),
)));
unsafe { bl.load(start) }
}

7
examples/boot/bootloader/stm32/src/main.rs
View File

@ -20,10 +20,9 @@ fn main() -> ! {
*/
let mut bl: BootLoader<ERASE_SIZE, WRITE_SIZE> = BootLoader::default();
let mut flash = Flash::unlock(p.FLASH);
let start = bl.prepare(&mut SingleFlashConfig::new(
&mut BootFlash::<_, ERASE_SIZE, ERASE_VALUE>::new(&mut flash),
));
let flash = Flash::unlock(p.FLASH);
let mut flash = BootFlash::<_, ERASE_SIZE, ERASE_VALUE>::new(flash);
let start = bl.prepare(&mut SingleFlashConfig::new(&mut flash));
core::mem::drop(flash);
unsafe { bl.load(start) }
}