mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

Diff: drivers/SPI.h

Revision:
160:5571c4ff569f
Parent:
156:ff21514d8981
Child:
165:d1b4690b3f8b
--- a/drivers/SPI.h	Thu Nov 23 11:44:04 2017 +0000
+++ b/drivers/SPI.h	Wed Jan 17 16:13:02 2018 +0000
@@ -246,6 +246,14 @@
     */
     void start_transfer(const void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event);
 
+private:
+    /** Lock deep sleep only if it is not yet locked */
+    void lock_deep_sleep();
+
+    /** Unlock deep sleep in case it is locked */
+    void unlock_deep_sleep();
+
+
 #if TRANSACTION_QUEUE_SIZE_SPI
 
     /** Start a new transaction
@@ -274,6 +282,7 @@
     CThunk<SPI> _irq;
     event_callback_t _callback;
     DMAUsage _usage;
+    bool _deep_sleep_locked;
 #endif
 
     void aquire(void);