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Fix unused get_sector and ensure_sector_aligned

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This commit is contained in:
Rasmus Melchior Jacobsen 2023-05-24 12:45:59 +02:00
parent cdb1447569
commit 34a2804b54
2 changed files with 47 additions and 46 deletions
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49
embassy-stm32/src/flash/common.rs
View File

@ -8,8 +8,8 @@ use embassy_sync::mutex::Mutex;
use stm32_metapac::FLASH_BASE;
use super::{
ensure_sector_aligned, family, get_sector, Error, FlashLayout, FlashRegion, FLASH_SIZE, MAX_ERASE_SIZE, READ_SIZE,
WRITE_SIZE,
family, Error, FlashLayout, FlashRegion, FLASH_SIZE, MAX_ERASE_SIZE, READ_SIZE,
WRITE_SIZE, FlashSector, FlashBank,
};
use crate::peripherals::FLASH;
use crate::Peripheral;
@ -118,6 +118,51 @@ pub(super) unsafe fn erase_sectored_blocking(base: u32, from: u32, to: u32) -> R
Ok(())
}
pub(crate) fn get_sector(address: u32, regions: &[&FlashRegion]) -> FlashSector {
let mut current_bank = FlashBank::Bank1;
let mut bank_offset = 0;
for region in regions {
if region.bank != current_bank {
current_bank = region.bank;
bank_offset = 0;
}
if address < region.end() {
let index_in_region = (address - region.base) / region.erase_size;
return FlashSector {
bank: region.bank,
index_in_bank: bank_offset + index_in_region as u8,
start: region.base + index_in_region * region.erase_size,
size: region.erase_size,
};
}
bank_offset += region.sectors();
}
panic!("Flash sector not found");
}
pub(crate) fn ensure_sector_aligned(
start_address: u32,
end_address: u32,
regions: &[&FlashRegion],
) -> Result<(), Error> {
let mut address = start_address;
while address < end_address {
let sector = get_sector(address, regions);
if sector.start != address {
return Err(Error::Unaligned);
}
address += sector.size;
}
if address != end_address {
return Err(Error::Unaligned);
}
Ok(())
}
impl embedded_storage::nor_flash::ErrorType for Flash<'_> {
type Error = Error;
}

44
embassy-stm32/src/flash/mod.rs
View File

@ -92,47 +92,3 @@ impl NorFlashError for Error {
}
}
}
pub(crate) fn get_sector(address: u32, regions: &[&FlashRegion]) -> FlashSector {
let mut current_bank = FlashBank::Bank1;
let mut bank_offset = 0;
for region in regions {
if region.bank != current_bank {
current_bank = region.bank;
bank_offset = 0;
}
if address < region.end() {
let index_in_region = (address - region.base) / region.erase_size;
return FlashSector {
bank: region.bank,
index_in_bank: bank_offset + index_in_region as u8,
start: region.base + index_in_region * region.erase_size,
size: region.erase_size,
};
}
bank_offset += region.sectors();
}
panic!("Flash sector not found");
}
pub(crate) fn ensure_sector_aligned(
start_address: u32,
end_address: u32,
regions: &[&FlashRegion],
) -> Result<(), Error> {
let mut address = start_address;
while address < end_address {
let sector = get_sector(address, regions);
if sector.start != address {
return Err(Error::Unaligned);
}
address += sector.size;
}
if address != end_address {
return Err(Error::Unaligned);
}
Ok(())
}