added gps reset callback

bsp_q7s/callbacks/rwSpiCallback.h

@@ -0,0 +1,44 @@
+#ifndef BSP_Q7S_RW_SPI_CALLBACK_H_
+#define BSP_Q7S_RW_SPI_CALLBACK_H_
+
+#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw_hal/linux/spi/SpiComIF.h"
+#include "fsfw_hal/common/gpio/GpioCookie.h"
+
+
+namespace rwSpiCallback {
+
+/**
+ * @brief   This is the callback function to send commands to the nano avionics reaction wheels and
+ *          receive the replies.
+ *
+ * @details The data to sent are additionally encoded according to the HDLC framing defined in the
+ *          datasheet of the reaction wheels:
+ *          https://eive-cloud.irs.uni-stuttgart.de/index.php/apps/files/?dir=/EIVE_IRS/
+ *          Arbeitsdaten/08_Used%20Components/Nanoavionics_Reactionwheels&fileid=181622
+ *          Each command entails exactly one reply which will also be read in and decoded by this
+ *          function.
+ *          Because the reaction wheels require a spi clock frequency of maximum 300 kHZ and minimum
+ *          150 kHz which is not supported by the processing system SPI peripheral an AXI SPI core
+ *          has been implemented in the programmable logic. This AXI SPI core works with a fixed
+ *          frequency of 250 kHz.
+ *          To allow the parallel usage of the same physical SPI bus, a VHDL module has been
+ *          implemented which is able to disconnect the hard-wired SPI peripheral of the PS and
+ *          route the AXI SPI to the SPI lines.
+ *          To switch between the to SPI peripherals, an EMIO is used which will also be controlled
+ *          by this function.
+ */
+ReturnValue_t spiCallback(SpiComIF* comIf, SpiCookie *cookie, const uint8_t *sendData,
+        size_t sendLen, void* args);
+
+/**
+ * @brief   This function closes a spi session. Pulls the chip select to high an releases the
+ *          mutex.
+ * @param gpioId    Gpio ID of chip select
+ * @param gpioIF    Pointer to gpio interface to drive the chip select
+ * @param mutex     The spi mutex
+ */
+void closeSpi(gpioId_t gpioId, GpioIF* gpioIF, MutexIF* mutex);
+
+}
+#endif /* BSP_Q7S_RW_SPI_CALLBACK_H_ */