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Fix to independent playback and capture patch to stop triggering PCM capture interrupts when a capture is not running and PCM playback interrupts when a playback is not running.

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This was causing a possible kernel hang while stopping a capture with an ongoing playback or vice versa.
This commit is contained in:
Andrea Bondavalli 2020-07-20 16:51:30 +02:00
parent af01d7d2f8
commit fe08f3c3bd
1 changed files with 13 additions and 0 deletions
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13
3rdparty/patches/ravenna-alsa-lkm-independent-playback-capture.patch vendored
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@ -169,6 +169,19 @@ index 25b77dc..ec62624 100644
break; break;
} }
case MT_ALSA_Msg_SetSampleRate: case MT_ALSA_Msg_SetSampleRate:
@@ -1468,8 +1502,10 @@ void AudioFrameTIC(void* user)
frame_process_begin(&self->m_RTP_streams_manager);
if(self->m_pALSAChip && self->m_alsa_driver_frontend)
{
- self->m_alsa_driver_frontend->pcm_interrupt(self->m_pALSAChip, 1);
- self->m_alsa_driver_frontend->pcm_interrupt(self->m_pALSAChip, 0);
+ if (self->m_bIsRecordingIO)
+ self->m_alsa_driver_frontend->pcm_interrupt(self->m_pALSAChip, 1);
+ if (self->m_bIsPlaybackIO)
+ self->m_alsa_driver_frontend->pcm_interrupt(self->m_pALSAChip, 0);
}
frame_process_end(&self->m_RTP_streams_manager);
#endif
@@ -1680,20 +1714,25 @@ int get_interrupts_frame_size(void* user, uint32_t *framesize) @@ -1680,20 +1714,25 @@ int get_interrupts_frame_size(void* user, uint32_t *framesize)
return -EINVAL; return -EINVAL;
} }