From 79131f4fe38bfd42f6df0765ffbf7f18cf5a862e Mon Sep 17 00:00:00 2001
From: JF <jf@codingfield.com>
Date: Sun, 17 May 2020 09:35:01 +0200
Subject: Improve SPI driver (use a mutex to prevent race conditions).

---
 src/drivers/SpiMaster.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/drivers/SpiMaster.h')

diff --git a/src/drivers/SpiMaster.h b/src/drivers/SpiMaster.h
index 362f480c..8a633b7f 100644
--- a/src/drivers/SpiMaster.h
+++ b/src/drivers/SpiMaster.h
@@ -7,6 +7,8 @@
 #include <task.h>
 
 #include "BufferProvider.h"
+#include <semphr.h>
+
 namespace Pinetime {
   namespace Drivers {
     class SpiMaster {
@@ -51,10 +53,10 @@ namespace Pinetime {
         SpiMaster::SpiModule spi;
         SpiMaster::Parameters params;
 
-        volatile bool busy = false;
         volatile uint32_t currentBufferAddr = 0;
         volatile size_t currentBufferSize = 0;
         volatile TaskHandle_t taskToNotify;
+        SemaphoreHandle_t mutex;
     };
   }
 }
-- 
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