From 76a7674272d89fd9dad5919caf14fdbbff5efdd6 Mon Sep 17 00:00:00 2001
From: Bertrand Songis <bsongis@gmail.com>
Date: Mon, 23 Dec 2013 15:18:00 +0100
Subject: [PATCH] [Taranis] Best fix for the audio freeze by Mike, thanks!

---
 src/audio_arm.cpp                    | 6 +++++-
 src/targets/taranis/audio_driver.cpp | 3 ---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/audio_arm.cpp b/src/audio_arm.cpp
index 428e75856..c3d311514 100644
--- a/src/audio_arm.cpp
+++ b/src/audio_arm.cpp
@@ -325,11 +325,15 @@ void AudioQueue::pushBuffer(AudioBuffer *buffer)
 {
   buffer->state = AUDIO_BUFFER_FILLED;
 
+  __disable_irq();
+
+  bufferWIdx = nextBufferIdx(bufferWIdx);
+
   if (dacQueue(buffer)) {
     buffer->state = AUDIO_BUFFER_PLAYING;
   }
 
-  bufferWIdx = nextBufferIdx(bufferWIdx);
+  __enable_irq();
 }
 
 void mix(uint16_t * result, int sample, unsigned int fade)
diff --git a/src/targets/taranis/audio_driver.cpp b/src/targets/taranis/audio_driver.cpp
index 5dc714fd5..d0b0508aa 100644
--- a/src/targets/taranis/audio_driver.cpp
+++ b/src/targets/taranis/audio_driver.cpp
@@ -95,10 +95,8 @@ void dacInit()
 
 bool dacQueue(AudioBuffer *buffer)
 {
-  __disable_irq();
   if (dacIdle) {
     dacIdle = false;
-    __enable_irq();
     DMA1_Stream5->CR &= ~DMA_SxCR_EN ;                              // Disable DMA channel
     DMA1->HIFCR = DMA_HIFCR_CTCIF5 | DMA_HIFCR_CHTIF5 | DMA_HIFCR_CTEIF5 | DMA_HIFCR_CDMEIF5 | DMA_HIFCR_CFEIF5 ; // Write ones to clear bits
     DMA1_Stream5->M0AR = CONVERT_PTR(buffer->data);
@@ -109,7 +107,6 @@ bool dacQueue(AudioBuffer *buffer)
     return true;
   }
   else {
-    __enable_irq();
     return false;
   }
 }