mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

Diff: drivers/SPI.h

Revision:
180:96ed750bd169
Parent:
174:b96e65c34a4d
Child:
184:08ed48f1de7f
--- a/drivers/SPI.h	Thu Dec 07 14:01:42 2017 +0000
+++ b/drivers/SPI.h	Wed Jan 17 15:23:54 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);