abdul124
/
nac3
forked from M-Labs/nac3
1
0
Fork 0
Code Pull Requests Activity

subkernel: fix DMA return control to wrong master

This commit is contained in:
mwojcik 2024-01-31 17:08:35 +08:00
parent f0f81dbf8a
commit facc98058c
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/libksupport/src/kernel/dma.rs
View File

@ -170,6 +170,7 @@ pub extern "C" fn dma_playback(timestamp: i64, ptr: i32, _uses_ddma: bool) {
csr::rtio_dma::base_address_write(ptr as u32); csr::rtio_dma::base_address_write(ptr as u32);
csr::rtio_dma::time_offset_write(timestamp as u64); csr::rtio_dma::time_offset_write(timestamp as u64);
let old_cri_master = csr::cri_con::selected_read();
csr::cri_con::selected_write(1); csr::cri_con::selected_write(1);
csr::rtio_dma::enable_write(1); csr::rtio_dma::enable_write(1);
#[cfg(has_drtio)] #[cfg(has_drtio)]
@ -183,7 +184,7 @@ pub extern "C" fn dma_playback(timestamp: i64, ptr: i32, _uses_ddma: bool) {
}); });
} }
while csr::rtio_dma::enable_read() != 0 {} while csr::rtio_dma::enable_read() != 0 {}
csr::cri_con::selected_write(0); csr::cri_con::selected_write(old_cri_master);
let error = csr::rtio_dma::error_read(); let error = csr::rtio_dma::error_read();
if error != 0 { if error != 0 {