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Kernel: Ignore AC97 non-completion interrupts

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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
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6
Kernel/Devices/Audio/AC97.cpp
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@ -69,9 +69,12 @@ bool AC97::handle_irq(RegisterState const&)
bool is_completion_interrupt = (pcm_out_status & AudioStatusRegisterFlag::BufferCompletionInterruptStatus) > 0;
bool is_fifo_error = (pcm_out_status & AudioStatusRegisterFlag::FIFOError) > 0;
VERIFY(is_completion_interrupt);
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
pcm_out_status = AudioStatusRegisterFlag::LastValidBufferCompletionInterrupt
| AudioStatusRegisterFlag::BufferCompletionInterruptStatus
@ -84,7 +87,6 @@ bool AC97::handle_irq(RegisterState const&)
} else {
m_irq_queue.wake_all();
}
return true;
}