some tweaks to make callback usage more easy

linux/spi/SpiComIF.cpp

@@ -344,7 +344,13 @@ ReturnValue_t SpiComIF::readReceivedMessage(CookieIF *cookie, uint8_t **buffer,
     return HasReturnvaluesIF::RETURN_OK;
 }
 
-MutexIF* SpiComIF::getMutex() {
+MutexIF* SpiComIF::getMutex(MutexIF::TimeoutType* timeoutType, uint32_t* timeoutMs) {
+    if(timeoutType != nullptr) {
+        *timeoutType = this->timeoutType;
+    }
+    if(timeoutMs != nullptr) {
+        *timeoutMs = this->timeoutMs;
+    }
     return spiMutex;
 }
 
@@ -362,6 +368,10 @@ ReturnValue_t SpiComIF::getReadBuffer(address_t spiAddress, uint8_t** buffer) {
     return HasReturnvaluesIF::RETURN_OK;
 }
 
+GpioIF* SpiComIF::getGpioInterface() {
+    return gpioComIF;
+}
+
 void SpiComIF::setSpiSpeedAndMode(int spiFd, spi::SpiModes mode, uint32_t speed) {
     int retval = ioctl(spiFd, SPI_IOC_WR_MODE, reinterpret_cast<uint8_t*>(&mode));
     if(retval != 0) {

linux/spi/SpiComIF.h

@@ -46,7 +46,7 @@ public:
      * @brief   This function returns the mutex which can be used to protect the spi bus when
      *          the chip select must be driven from outside of the com if.
      */
-    MutexIF* getMutex();
+    MutexIF* getMutex(MutexIF::TimeoutType* timeoutType = nullptr, uint32_t* timeoutMs = nullptr);
 
     /**
      * Perform a regular send operation using Linux iotcl. This is public so it can be used
@@ -58,6 +58,10 @@ public:
      */
     ReturnValue_t performRegularSendOperation(SpiCookie* spiCookie, const uint8_t *sendData,
             size_t sendLen);
+
+    GpioIF* getGpioInterface();
+    void setSpiSpeedAndMode(int spiFd, spi::SpiModes mode, uint32_t speed);
+
 private:
 
     struct SpiInstance {
@@ -78,7 +82,7 @@ private:
     ReturnValue_t performHalfDuplexReception(SpiCookie* spiCookie);
 
     ReturnValue_t getReadBuffer(address_t spiAddress, uint8_t** buffer);
-    void setSpiSpeedAndMode(int spiFd, spi::SpiModes mode, uint32_t speed);
+
 };
 
 #endif /* LINUX_SPI_SPICOMIF_H_ */