From 90a4f28c2799e3ae5e873f1f34b1e4adb59f77cb Mon Sep 17 00:00:00 2001 From: Solomon Peachy Date: Fri, 4 Sep 2020 15:55:11 -0400 Subject: jz47xx: Audio path tweaks: * Increase audio buffer size to better handle IRQ latency (256->2048) * Ensure DMA engine is idle prior to starting transfers * Set AIC to repeat last sample in case of underflows Change-Id: I9c45c20481ee072e5882b7586fb7d50bd8ef2f35 --- firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c') diff --git a/firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c b/firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c index 00a2b22591..ef2597ae69 100644 --- a/firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c +++ b/firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c @@ -137,6 +137,8 @@ void DMA_CALLBACK(DMA_AIC_TX_CHANNEL)(void) void pcm_play_dma_start(const void *addr, size_t size) { + pcm_play_dma_stop(); + dma_enable(); set_dma(addr, size); -- cgit v1.2.3