integrating fsfw_hal

linux/archive/gpio/gpioDefinitions.h

@@ -0,0 +1,92 @@
+#ifndef LINUX_GPIO_GPIODEFINITIONS_H_
+#define LINUX_GPIO_GPIODEFINITIONS_H_
+
+#include <string>
+#include <unordered_map>
+
+using gpioId_t = uint16_t;
+
+namespace gpio {
+enum Direction {
+    IN = 0,
+    OUT = 1
+};
+
+enum GpioOperation {
+    READ,
+    WRITE
+};
+
+enum GpioTypes {
+    NONE,
+    GPIOD_REGULAR,
+    CALLBACK
+};
+
+static constexpr gpioId_t NO_GPIO = -1;
+}
+
+/**
+ * @brief   Struct containing information about the GPIO to use. This is
+ *          required by the libgpiod to access and drive a GPIO.
+ * @param chipname      String of the chipname specifying the group which contains the GPIO to
+ *                      access. E.g. gpiochip0. To detect names of GPIO groups run gpiodetect on
+ *                      the linux command line.
+ * @param lineNum       The offset of the GPIO within the GPIO group.
+ * @param consumer      Name of the consumer. Simply a description of the GPIO configuration.
+ * @param direction     Specifies whether the GPIO should be used as in- or output.
+ * @param initValue     Defines the initial state of the GPIO when configured as output.
+ *                      Only required for output GPIOs.
+ * @param lineHandle    The handle returned by gpiod_chip_get_line will be later written to this
+ *                      pointer.
+ */
+class GpioBase {
+public:
+
+    GpioBase() = default;
+
+    GpioBase(gpio::GpioTypes gpioType, std::string consumer, gpio::Direction direction,
+            int initValue):
+            gpioType(gpioType), consumer(consumer),direction(direction), initValue(initValue) {}
+
+    virtual~ GpioBase() {};
+
+    /* Can be used to cast GpioBase to a concrete child implementation */
+    gpio::GpioTypes gpioType = gpio::GpioTypes::NONE;
+    std::string consumer;
+    gpio::Direction direction = gpio::Direction::IN;
+    int initValue = 0;
+};
+
+class GpiodRegular: public GpioBase {
+public:
+    GpiodRegular(): GpioBase(gpio::GpioTypes::GPIOD_REGULAR, std::string(),
+            gpio::Direction::IN, 0) {};
+
+    GpiodRegular(std::string chipname_, int lineNum_, std::string consumer_,
+            gpio::Direction direction_, int initValue_):
+            GpioBase(gpio::GpioTypes::GPIOD_REGULAR, consumer_, direction_, initValue_),
+            chipname(chipname_), lineNum(lineNum_) {}
+    std::string chipname;
+    int lineNum = 0;
+    struct gpiod_line* lineHandle = nullptr;
+};
+
+class GpioCallback: public GpioBase {
+public:
+    GpioCallback(std::string consumer, gpio::Direction direction_, int initValue_,
+            void (* callback) (gpioId_t gpioId, gpio::GpioOperation gpioOp, int value, void* args),
+            void* callbackArgs):
+            GpioBase(gpio::GpioTypes::CALLBACK, consumer, direction_, initValue_),
+            callback(callback), callbackArgs(callbackArgs) {}
+
+    void (* callback) (gpioId_t gpioId, gpio::GpioOperation gpioOp,
+            int value, void* args) = nullptr;
+    void* callbackArgs = nullptr;
+};
+
+
+using GpioMap = std::unordered_map<gpioId_t, GpioBase*>;
+using GpioMapIter = GpioMap::iterator;
+
+#endif /* LINUX_GPIO_GPIODEFINITIONS_H_ */