From adef45403bc05dfc2bae616003fc90d2f40a3da4 Mon Sep 17 00:00:00 2001 From: Jeff Epler Date: Wed, 13 May 2020 10:29:36 -0500 Subject: [PATCH] samd: audio dma: enable/disable supervisor tick as needed --- ports/atmel-samd/audio_dma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/ports/atmel-samd/audio_dma.c b/ports/atmel-samd/audio_dma.c index 352af89802..93cd96b985 100644 --- a/ports/atmel-samd/audio_dma.c +++ b/ports/atmel-samd/audio_dma.c @@ -31,6 +31,7 @@ #include "shared-bindings/audiocore/RawSample.h" #include "shared-bindings/audiocore/WaveFile.h" +#include "supervisor/shared/tick.h" #include "py/mpstate.h" #include "py/runtime.h" @@ -60,6 +61,7 @@ void audio_dma_free_channel(uint8_t channel) { assert(audio_dma_allocated[channel]); audio_dma_disable_channel(channel); audio_dma_allocated[channel] = false; + supervisor_disable_tick(); } void audio_dma_disable_channel(uint8_t channel) { @@ -71,6 +73,7 @@ void audio_dma_disable_channel(uint8_t channel) { void audio_dma_enable_channel(uint8_t channel) { if (channel >= AUDIO_DMA_CHANNEL_COUNT) return; + supervisor_enable_tick(); dma_enable_channel(channel); } @@ -318,6 +321,9 @@ void audio_dma_reset(void) { for (uint8_t i = 0; i < AUDIO_DMA_CHANNEL_COUNT; i++) { audio_dma_state[i] = NULL; audio_dma_pending[i] = false; + if (audio_dma_allocated[i]) { + supervisor_disable_tick(); + } audio_dma_allocated[i] = false; audio_dma_disable_channel(i); dma_descriptor(i)->BTCTRL.bit.VALID = false;