added raspberryp i specific code

linux/rpi/CMakeLists.txt

@@ -1 +1,3 @@
-
+target_sources(${LIB_FSFW_HAL_NAME} PRIVATE
+    GpioRPi.cpp
+)

linux/rpi/GpioRPi.cpp

@@ -0,0 +1,37 @@
+#include "GpioRPi.h"
+#include "../GpioCookie.h"
+#include <FSFWConfig.h>
+
+#include <fsfw/serviceinterface/ServiceInterface.h>
+
+
+ReturnValue_t gpio::createRpiGpioConfig(GpioCookie* cookie, gpioId_t gpioId, int bcmPin,
+        std::string consumer, gpio::Direction direction, int initValue) {
+    if(cookie == nullptr) {
+        return HasReturnvaluesIF::RETURN_FAILED;
+    }
+
+    GpiodRegular config;
+    /* Default chipname for Raspberry Pi. There is still gpiochip1 for expansion, but most users
+    will not need this */
+    config.chipname = "gpiochip0";
+
+    config.consumer = consumer;
+    config.direction = direction;
+    config.initValue = initValue;
+
+    /* Sanity check for the BCM pins before assigning it */
+    if(bcmPin > 27) {
+#if FSFW_VERBOSE_LEVEL >= 1
+#if FSFW_CPP_OSTREAM_ENABLED == 1
+        sif::error << "createRpiGpioConfig: BCM pin " << bcmPin << " invalid!" << std::endl;
+#else
+        sif::printError("createRpiGpioConfig: BCM pin %d invalid!\n", bcmPin);
+#endif /* FSFW_CPP_OSTREAM_ENABLED == 1 */
+#endif /* FSFW_VERBOSE_LEVEL >= 1 */
+        return HasReturnvaluesIF::RETURN_FAILED;
+    }
+    config.lineNum = bcmPin;
+    cookie->addGpio(gpioId, config);
+    return HasReturnvaluesIF::RETURN_OK;
+}

linux/rpi/GpioRPi.h

@@ -0,0 +1,26 @@
+#ifndef BSP_RPI_GPIO_GPIORPI_H_
+#define BSP_RPI_GPIO_GPIORPI_H_
+
+#include <fsfw/returnvalues/HasReturnvaluesIF.h>
+#include "../gpioDefinitions.h"
+
+class GpioCookie;
+
+namespace gpio {
+
+/**
+ * Create a GpioConfig_t. This function does a sanity check on the BCM pin number and fails if the
+ * BCM pin is invalid.
+ * @param cookie    Adds the configuration to this cookie directly
+ * @param gpioId    ID which identifies the GPIO configuration
+ * @param bcmPin    Raspberry Pi BCM pin
+ * @param consumer  Information string
+ * @param direction GPIO direction
+ * @param initValue Intial value for output pins, 0 for low, 1 for high
+ * @return
+ */
+ReturnValue_t createRpiGpioConfig(GpioCookie* cookie, gpioId_t gpioId, int bcmPin,
+        std::string consumer, gpio::Direction direction, int initValue);
+}
+
+#endif /* BSP_RPI_GPIO_GPIORPI_H_ */