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SD reader: changed from &mut to owning.

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This commit is contained in:
pca006132 2020-06-18 11:31:46 +08:00
parent f7bb339275
commit 228c0c813d
2 changed files with 11 additions and 11 deletions
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4
src/runtime/src/load_pl.rs
View File

@ -156,8 +156,8 @@ pub fn load_bitstream_from_sd() -> Result<(), PlLoadingError> {
let sdio0 = sdio::SDIO::sdio0(true);
if sdio0.is_card_inserted() {
info!("Card inserted. Mounting file system.");
let mut sd = sdio::sd_card::SdCard::from_sdio(sdio0).unwrap();
let reader = sd_reader::SdReader::new(&mut sd);
let sd = sdio::sd_card::SdCard::from_sdio(sdio0).unwrap();
let reader = sd_reader::SdReader::new(sd);
let fs = reader.mount_fatfs(sd_reader::PartitionEntry::Entry1)?;
let root_dir = fs.root_dir();

18
src/runtime/src/sd_reader.rs
View File

@ -15,9 +15,9 @@ const BLOCK_SIZE: usize = 512;
/// Implementation: all read/writes would be split into unaligned and block-aligned parts,
/// unaligned read/writes would do a buffered read/write using a block-sized internal buffer,
/// while aligned transactions would be sent to the SD card directly for performance reason.
pub struct SdReader<'a> {
pub struct SdReader {
/// Internal SdCard handle.
sd: &'a mut SdCard,
sd: SdCard,
/// Read buffer with the size of 1 block.
buffer: [u8; BLOCK_SIZE],
/// Address for the next byte.
@ -44,9 +44,9 @@ pub enum PartitionEntry {
Entry4 = 0x1EE,
}
impl<'a> SdReader<'a> {
impl SdReader {
/// Create SdReader from SdCard
pub fn new(sd: &'a mut SdCard) -> SdReader<'a> {
pub fn new(sd: SdCard) -> SdReader {
SdReader {
sd,
buffer: [0; BLOCK_SIZE],
@ -171,7 +171,7 @@ impl<'a> SdReader<'a> {
}
}
impl<'a> Read for SdReader<'a> {
impl Read for SdReader {
fn read(&mut self, buf: &mut [u8]) -> IoResult<usize> {
let total_length = buf.len();
let (a, b, c) = self.block_align_mut(buf);
@ -197,7 +197,7 @@ impl<'a> Read for SdReader<'a> {
}
}
impl<'a> BufRead for SdReader<'a> {
impl BufRead for SdReader {
fn fill_buf(&mut self) -> IoResult<&[u8]> {
if self.index == BLOCK_SIZE {
// flush the buffer if it is dirty before overwriting it with new data
@ -219,7 +219,7 @@ impl<'a> BufRead for SdReader<'a> {
}
}
impl<'a> Write for SdReader<'a> {
impl Write for SdReader {
fn write(&mut self, buf: &[u8]) -> IoResult<usize> {
let (a, b, c) = self.block_align(buf);
self.write_unaligned(a)?;
@ -252,7 +252,7 @@ impl<'a> Write for SdReader<'a> {
}
}
impl<'a> Seek for SdReader<'a> {
impl Seek for SdReader {
fn seek(&mut self, pos: SeekFrom) -> IoResult<u64> {
let raw_target = match pos {
SeekFrom::Start(x) => self.offset as i64 + x as i64,
@ -281,7 +281,7 @@ impl<'a> Seek for SdReader<'a> {
}
}
impl<'a> Drop for SdReader<'a> {
impl Drop for SdReader {
fn drop(&mut self) {
// just try to flush it, ignore error if any
self.flush().unwrap_or(());