RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 12:47:35 +00:00
Code Issues Activity Actions

Kernel: Ignore AC97 non-completion interrupts

Browse source 
Fixes #11094
This commit is contained in:
Jelle Raaijmakers 2021-11-27 13:48:45 +01:00 • committed by Idan Horowitz
parent 689ad0752c
commit 497180a650
1 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

6
Kernel/Devices/Audio/AC97.cpp
View file

@ -69,9 +69,12 @@ bool AC97::handle_irq(RegisterState const&)
bool is_completion_interrupt = (pcm_out_status & AudioStatusRegisterFlag::BufferCompletionInterruptStatus) > 0; bool is_completion_interrupt = (pcm_out_status & AudioStatusRegisterFlag::BufferCompletionInterruptStatus) > 0;
bool is_fifo_error = (pcm_out_status & AudioStatusRegisterFlag::FIFOError) > 0; bool is_fifo_error = (pcm_out_status & AudioStatusRegisterFlag::FIFOError) > 0;
VERIFY(is_completion_interrupt);
VERIFY(!is_fifo_error); VERIFY(!is_fifo_error);
// If there is no buffer completion, we're not going to do anything
if (!is_completion_interrupt)
return false;
// On interrupt, we need to reset PCM interrupt flags by setting their bits // On interrupt, we need to reset PCM interrupt flags by setting their bits
pcm_out_status = AudioStatusRegisterFlag::LastValidBufferCompletionInterrupt pcm_out_status = AudioStatusRegisterFlag::LastValidBufferCompletionInterrupt
| AudioStatusRegisterFlag::BufferCompletionInterruptStatus | AudioStatusRegisterFlag::BufferCompletionInterruptStatus
@ -84,7 +87,6 @@ bool AC97::handle_irq(RegisterState const&)
} else { } else {
m_irq_queue.wake_all(); m_irq_queue.wake_all();
} }
return true; return true;
} }