moved some archive files

archive/gpio/CMakeLists.txt

@@ -0,0 +1,12 @@
+target_sources(${TARGET_NAME} PUBLIC
+	GpioCookie.cpp
+	LinuxLibgpioIF.cpp
+)
+
+target_link_libraries(${TARGET_NAME} PUBLIC
+    gpiod
+)
+
+
+
+

archive/gpio/GpioCookie.cpp

@@ -0,0 +1,32 @@
+#include "GpioCookie.h"
+
+#include <fsfw/serviceinterface/ServiceInterface.h>
+
+GpioCookie::GpioCookie() {}
+
+ReturnValue_t GpioCookie::addGpio(gpioId_t gpioId, GpioBase* gpioConfig) {
+  if (gpioConfig == nullptr) {
+    sif::debug << "GpioCookie::addGpio: gpioConfig is nullpointer" << std::endl;
+    return HasReturnvaluesIF::RETURN_FAILED;
+  }
+  auto gpioMapIter = gpioMap.find(gpioId);
+  if (gpioMapIter == gpioMap.end()) {
+    auto statusPair = gpioMap.emplace(gpioId, gpioConfig);
+    if (statusPair.second == false) {
+#if FSFW_VERBOSE_LEVEL >= 1
+      sif::error << "GpioCookie::addGpio: Failed to add GPIO " << gpioId << " to GPIO map"
+                 << std::endl;
+#endif
+      return HasReturnvaluesIF::RETURN_FAILED;
+    }
+    return HasReturnvaluesIF::RETURN_OK;
+  }
+#if FSFW_VERBOSE_LEVEL >= 1
+  sif::error << "GpioCookie::addGpio: GPIO already exists in GPIO map " << std::endl;
+#endif
+  return HasReturnvaluesIF::RETURN_FAILED;
+}
+
+GpioMap GpioCookie::getGpioMap() const { return gpioMap; }
+
+GpioCookie::~GpioCookie() {}

archive/gpio/GpioCookie.h

@@ -0,0 +1,39 @@
+#ifndef LINUX_GPIO_GPIOCOOKIE_H_
+#define LINUX_GPIO_GPIOCOOKIE_H_
+
+#include <fsfw/devicehandlers/CookieIF.h>
+#include <fsfw/returnvalues/HasReturnvaluesIF.h>
+
+#include "GpioIF.h"
+#include "gpioDefinitions.h"
+
+/**
+ * @brief   Cookie for the GpioIF. Allows the GpioIF to determine which
+ * 			GPIOs to initialize and whether they should be configured as in- or
+ * 			output.
+ * @details	One GpioCookie can hold multiple GPIO configurations. To add a new
+ * 			GPIO configuration to a GpioCookie use the GpioCookie::addGpio
+ * 			function.
+ *
+ * @author 	J. Meier
+ */
+class GpioCookie : public CookieIF {
+ public:
+  GpioCookie();
+
+  virtual ~GpioCookie();
+
+  ReturnValue_t addGpio(gpioId_t gpioId, GpioBase* gpioConfig);
+  /**
+   * @brief	Get map with registered GPIOs.
+   */
+  GpioMap getGpioMap() const;
+
+ private:
+  /**
+   * Returns a copy of the internal GPIO map.
+   */
+  GpioMap gpioMap;
+};
+
+#endif /* LINUX_GPIO_GPIOCOOKIE_H_ */

archive/gpio/GpioIF.h

@@ -0,0 +1,54 @@
+#ifndef LINUX_GPIO_GPIOIF_H_
+#define LINUX_GPIO_GPIOIF_H_
+
+#include <fsfw/devicehandlers/CookieIF.h>
+#include <fsfw/returnvalues/HasReturnvaluesIF.h>
+
+#include "gpioDefinitions.h"
+
+class GpioCookie;
+
+/**
+ * @brief	This class defines the interface for objects requiring the control
+ * 			over GPIOs.
+ * @author	J. Meier
+ */
+class GpioIF : public HasReturnvaluesIF {
+ public:
+  virtual ~GpioIF(){};
+
+  /**
+   * @brief   Called by the GPIO using object.
+   * @param cookie	Cookie specifying informations of the GPIOs required
+   * 					by a object.
+   */
+  virtual ReturnValue_t addGpios(GpioCookie* cookie) = 0;
+
+  /**
+   * @brief	By implementing this function a child must provide the
+   * 			functionality to pull a certain GPIO to high logic level.
+   *
+   * @param gpioId	A unique number which specifies the GPIO to drive.
+   * @return  Returns RETURN_OK for success. This should never return RETURN_FAILED.
+   */
+  virtual ReturnValue_t pullHigh(gpioId_t gpioId) = 0;
+
+  /**
+   * @brief	By implementing this function a child must provide the
+   * 			functionality to pull a certain GPIO to low logic level.
+   *
+   * @param gpioId	A unique number which specifies the GPIO to drive.
+   */
+  virtual ReturnValue_t pullLow(gpioId_t gpioId) = 0;
+
+  /**
+   * @brief   This function requires a child to implement the functionality to read the state of
+   *          an ouput or input gpio.
+   *
+   * @param gpioId    A unique number which specifies the GPIO to read.
+   * @param gpioState State of GPIO will be written to this pointer.
+   */
+  virtual ReturnValue_t readGpio(gpioId_t gpioId, int* gpioState) = 0;
+};
+
+#endif /* LINUX_GPIO_GPIOIF_H_ */

archive/gpio/LinuxLibgpioIF.cpp

@@ -0,0 +1,295 @@
+#include "LinuxLibgpioIF.h"
+
+#include <fsfw/serviceinterface/ServiceInterface.h>
+#include <gpiod.h>
+#include <linux/gpio/gpioDefinitions.h>
+#include <unistd.h>
+
+#include <utility>
+
+#include "GpioCookie.h"
+
+LinuxLibgpioIF::LinuxLibgpioIF(object_id_t objectId) : SystemObject(objectId) {
+  struct gpiod_chip* chip = gpiod_chip_open_by_label("/amba_pl/gpio@42030000");
+
+  sif::debug << chip->name << std::endl;
+}
+
+LinuxLibgpioIF::~LinuxLibgpioIF() {}
+
+ReturnValue_t LinuxLibgpioIF::addGpios(GpioCookie* gpioCookie) {
+  ReturnValue_t result;
+  if (gpioCookie == nullptr) {
+    sif::error << "LinuxLibgpioIF::initialize: Invalid cookie" << std::endl;
+    return RETURN_FAILED;
+  }
+
+  GpioMap mapToAdd = gpioCookie->getGpioMap();
+
+  /* Check whether this ID already exists in the map and remove duplicates */
+  result = checkForConflicts(mapToAdd);
+  if (result != RETURN_OK) {
+    return result;
+  }
+
+  result = configureGpios(mapToAdd);
+  if (result != RETURN_OK) {
+    return RETURN_FAILED;
+  }
+
+  /* Register new GPIOs in gpioMap */
+  gpioMap.insert(mapToAdd.begin(), mapToAdd.end());
+
+  return RETURN_OK;
+}
+
+ReturnValue_t LinuxLibgpioIF::configureGpios(GpioMap& mapToAdd) {
+  for (auto& gpioConfig : mapToAdd) {
+    switch (gpioConfig.second->gpioType) {
+      case (gpio::GpioTypes::NONE): {
+        return GPIO_INVALID_INSTANCE;
+      }
+      case (gpio::GpioTypes::GPIOD_REGULAR): {
+        GpiodRegular* regularGpio = dynamic_cast<GpiodRegular*>(gpioConfig.second);
+        if (regularGpio == nullptr) {
+          return GPIO_INVALID_INSTANCE;
+        }
+        configureRegularGpio(gpioConfig.first, regularGpio);
+        break;
+      }
+      case (gpio::GpioTypes::CALLBACK): {
+        auto gpioCallback = dynamic_cast<GpioCallback*>(gpioConfig.second);
+        if (gpioCallback->callback == nullptr) {
+          return GPIO_INVALID_INSTANCE;
+        }
+        gpioCallback->callback(gpioConfig.first, gpio::GpioOperation::WRITE,
+                               gpioCallback->initValue, gpioCallback->callbackArgs);
+      }
+    }
+  }
+  return RETURN_OK;
+}
+
+ReturnValue_t LinuxLibgpioIF::configureRegularGpio(gpioId_t gpioId, GpiodRegular* regularGpio) {
+  std::string chipname;
+  unsigned int lineNum;
+  struct gpiod_chip* chip;
+  gpio::Direction direction;
+  std::string consumer;
+  struct gpiod_line* lineHandle;
+  int result = 0;
+
+  chipname = regularGpio->chipname;
+  chip = gpiod_chip_open_by_name(chipname.c_str());
+  if (!chip) {
+    sif::error << "LinuxLibgpioIF::configureGpios: Failed to open chip " << chipname
+               << ". Gpio ID: " << gpioId << std::endl;
+    return RETURN_FAILED;
+  }
+
+  lineNum = regularGpio->lineNum;
+  lineHandle = gpiod_chip_get_line(chip, lineNum);
+  if (!lineHandle) {
+    sif::error << "LinuxLibgpioIF::configureGpios: Failed to open line for GPIO with id " << gpioId
+               << std::endl;
+    gpiod_chip_close(chip);
+    return RETURN_FAILED;
+  }
+
+  direction = regularGpio->direction;
+  consumer = regularGpio->consumer;
+  /* Configure direction and add a description to the GPIO */
+  switch (direction) {
+    case (gpio::OUT): {
+      result = gpiod_line_request_output(lineHandle, consumer.c_str(), regularGpio->initValue);
+      if (result < 0) {
+        sif::error << "LinuxLibgpioIF::configureGpios: Failed to request line " << lineNum
+                   << " from GPIO instance with ID: " << gpioId << std::endl;
+        gpiod_line_release(lineHandle);
+        return RETURN_FAILED;
+      }
+      break;
+    }
+    case (gpio::IN): {
+      result = gpiod_line_request_input(lineHandle, consumer.c_str());
+      if (result < 0) {
+        sif::error << "LinuxLibgpioIF::configureGpios: Failed to request line " << lineNum
+                   << " from GPIO instance with ID: " << gpioId << std::endl;
+        gpiod_line_release(lineHandle);
+        return RETURN_FAILED;
+      }
+      break;
+    }
+    default: {
+      sif::error << "LinuxLibgpioIF::configureGpios: Invalid direction specified" << std::endl;
+      return GPIO_INVALID_INSTANCE;
+    }
+  }
+  /**
+   * Write line handle to GPIO configuration instance so it can later be used to set or
+   * read states of GPIOs.
+   */
+  regularGpio->lineHandle = lineHandle;
+  return RETURN_OK;
+}
+
+ReturnValue_t LinuxLibgpioIF::pullHigh(gpioId_t gpioId) {
+  gpioMapIter = gpioMap.find(gpioId);
+  if (gpioMapIter == gpioMap.end()) {
+    sif::warning << "LinuxLibgpioIF::driveGpio: Unknown GPIOD ID " << gpioId << std::endl;
+    return UNKNOWN_GPIO_ID;
+  }
+
+  if (gpioMapIter->second->gpioType == gpio::GpioTypes::GPIOD_REGULAR) {
+    return driveGpio(gpioId, dynamic_cast<GpiodRegular*>(gpioMapIter->second), 1);
+  } else {
+    auto gpioCallback = dynamic_cast<GpioCallback*>(gpioMapIter->second);
+    if (gpioCallback->callback == nullptr) {
+      return GPIO_INVALID_INSTANCE;
+    }
+    gpioCallback->callback(gpioMapIter->first, gpio::GpioOperation::WRITE, 1,
+                           gpioCallback->callbackArgs);
+  }
+  return GPIO_TYPE_FAILURE;
+}
+
+ReturnValue_t LinuxLibgpioIF::pullLow(gpioId_t gpioId) {
+  gpioMapIter = gpioMap.find(gpioId);
+  if (gpioMapIter == gpioMap.end()) {
+    sif::warning << "LinuxLibgpioIF::driveGpio: Unknown GPIOD ID " << gpioId << std::endl;
+    return UNKNOWN_GPIO_ID;
+  }
+
+  if (gpioMapIter->second->gpioType == gpio::GpioTypes::GPIOD_REGULAR) {
+    return driveGpio(gpioId, dynamic_cast<GpiodRegular*>(gpioMapIter->second), 0);
+  } else {
+    auto gpioCallback = dynamic_cast<GpioCallback*>(gpioMapIter->second);
+    if (gpioCallback->callback == nullptr) {
+      return GPIO_INVALID_INSTANCE;
+    }
+    gpioCallback->callback(gpioMapIter->first, gpio::GpioOperation::WRITE, 0,
+                           gpioCallback->callbackArgs);
+  }
+  return GPIO_TYPE_FAILURE;
+}
+
+ReturnValue_t LinuxLibgpioIF::driveGpio(gpioId_t gpioId, GpiodRegular* regularGpio,
+                                        unsigned int logicLevel) {
+  if (regularGpio == nullptr) {
+    return GPIO_TYPE_FAILURE;
+  }
+
+  int result = gpiod_line_set_value(regularGpio->lineHandle, logicLevel);
+  if (result < 0) {
+    sif::warning << "LinuxLibgpioIF::driveGpio: Failed to pull GPIO with ID " << gpioId
+                 << " to logic level " << logicLevel << std::endl;
+    return DRIVE_GPIO_FAILURE;
+  }
+
+  return RETURN_OK;
+}
+
+ReturnValue_t LinuxLibgpioIF::readGpio(gpioId_t gpioId, int* gpioState) {
+  gpioMapIter = gpioMap.find(gpioId);
+  if (gpioMapIter == gpioMap.end()) {
+    sif::warning << "LinuxLibgpioIF::readGpio: Unknown GPIOD ID " << gpioId << std::endl;
+    return UNKNOWN_GPIO_ID;
+  }
+
+  if (gpioMapIter->second->gpioType == gpio::GpioTypes::GPIOD_REGULAR) {
+    GpiodRegular* regularGpio = dynamic_cast<GpiodRegular*>(gpioMapIter->second);
+    if (regularGpio == nullptr) {
+      return GPIO_TYPE_FAILURE;
+    }
+    *gpioState = gpiod_line_get_value(regularGpio->lineHandle);
+  } else {
+  }
+
+  return RETURN_OK;
+}
+
+ReturnValue_t LinuxLibgpioIF::checkForConflicts(GpioMap& mapToAdd) {
+  ReturnValue_t status = HasReturnvaluesIF::RETURN_OK;
+  ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
+  for (auto& gpioConfig : mapToAdd) {
+    switch (gpioConfig.second->gpioType) {
+      case (gpio::GpioTypes::GPIOD_REGULAR): {
+        auto regularGpio = dynamic_cast<GpiodRegular*>(gpioConfig.second);
+        if (regularGpio == nullptr) {
+          return GPIO_TYPE_FAILURE;
+        }
+        /* Check for conflicts and remove duplicates if necessary */
+        result = checkForConflictsRegularGpio(gpioConfig.first, regularGpio, mapToAdd);
+        if (result != HasReturnvaluesIF::RETURN_OK) {
+          status = result;
+        }
+        break;
+      }
+      case (gpio::GpioTypes::CALLBACK): {
+        auto callbackGpio = dynamic_cast<GpioCallback*>(gpioConfig.second);
+        if (callbackGpio == nullptr) {
+          return GPIO_TYPE_FAILURE;
+        }
+        /* Check for conflicts and remove duplicates if necessary */
+        result = checkForConflictsCallbackGpio(gpioConfig.first, callbackGpio, mapToAdd);
+        if (result != HasReturnvaluesIF::RETURN_OK) {
+          status = result;
+        }
+        break;
+      }
+      default: {
+      }
+    }
+  }
+  return status;
+}
+
+ReturnValue_t LinuxLibgpioIF::checkForConflictsRegularGpio(gpioId_t gpioIdToCheck,
+                                                           GpiodRegular* gpioToCheck,
+                                                           GpioMap& mapToAdd) {
+  /* Cross check with private map */
+  gpioMapIter = gpioMap.find(gpioIdToCheck);
+  if (gpioMapIter != gpioMap.end()) {
+    if (gpioMapIter->second->gpioType != gpio::GpioTypes::GPIOD_REGULAR) {
+      sif::warning << "LinuxLibgpioIF::checkForConflicts: ID already exists for different "
+                      "GPIO type"
+                   << gpioIdToCheck << ". Removing duplicate." << std::endl;
+      mapToAdd.erase(gpioIdToCheck);
+      return HasReturnvaluesIF::RETURN_OK;
+    }
+    auto ownRegularGpio = dynamic_cast<GpiodRegular*>(gpioMapIter->second);
+    if (ownRegularGpio == nullptr) {
+      return GPIO_TYPE_FAILURE;
+    }
+
+    /* Remove element from map to add because a entry for this GPIO
+    already exists */
+    sif::warning << "LinuxLibgpioIF::checkForConflictsRegularGpio: Duplicate GPIO definition"
+                 << " detected. Duplicate will be removed from map to add." << std::endl;
+    mapToAdd.erase(gpioIdToCheck);
+  }
+  return HasReturnvaluesIF::RETURN_OK;
+}
+
+ReturnValue_t LinuxLibgpioIF::checkForConflictsCallbackGpio(gpioId_t gpioIdToCheck,
+                                                            GpioCallback* callbackGpio,
+                                                            GpioMap& mapToAdd) {
+  /* Cross check with private map */
+  gpioMapIter = gpioMap.find(gpioIdToCheck);
+  if (gpioMapIter != gpioMap.end()) {
+    if (gpioMapIter->second->gpioType != gpio::GpioTypes::CALLBACK) {
+      sif::warning << "LinuxLibgpioIF::checkForConflicts: ID already exists for different "
+                      "GPIO type"
+                   << gpioIdToCheck << ". Removing duplicate." << std::endl;
+      mapToAdd.erase(gpioIdToCheck);
+      return HasReturnvaluesIF::RETURN_OK;
+    }
+
+    /* Remove element from map to add because a entry for this GPIO
+    already exists */
+    sif::warning << "LinuxLibgpioIF::checkForConflictsRegularGpio: Duplicate GPIO definition"
+                 << " detected. Duplicate will be removed from map to add." << std::endl;
+    mapToAdd.erase(gpioIdToCheck);
+  }
+  return HasReturnvaluesIF::RETURN_OK;
+}

archive/gpio/LinuxLibgpioIF.h

@@ -0,0 +1,75 @@
+#ifndef LINUX_GPIO_LINUXLIBGPIOIF_H_
+#define LINUX_GPIO_LINUXLIBGPIOIF_H_
+
+#include <fsfw/objectmanager/SystemObject.h>
+#include <fsfwconfig/returnvalues/classIds.h>
+#include <linux/gpio/GpioIF.h>
+
+class GpioCookie;
+
+/**
+ * @brief	This class implements the GpioIF for a linux based system. The
+ * 			implementation is based on the libgpiod lib which requires linux 4.8
+ * 			or higher.
+ * @note	The Petalinux SDK from Xilinx supports libgpiod since Petalinux
+ * 			2019.1.
+ */
+class LinuxLibgpioIF : public GpioIF, public SystemObject {
+ public:
+  static const uint8_t gpioRetvalId = CLASS_ID::LINUX_LIBGPIO_IF;
+
+  static constexpr ReturnValue_t UNKNOWN_GPIO_ID =
+      HasReturnvaluesIF::makeReturnCode(gpioRetvalId, 1);
+  static constexpr ReturnValue_t DRIVE_GPIO_FAILURE =
+      HasReturnvaluesIF::makeReturnCode(gpioRetvalId, 2);
+  static constexpr ReturnValue_t GPIO_TYPE_FAILURE =
+      HasReturnvaluesIF::makeReturnCode(gpioRetvalId, 3);
+  static constexpr ReturnValue_t GPIO_INVALID_INSTANCE =
+      HasReturnvaluesIF::makeReturnCode(gpioRetvalId, 4);
+
+  LinuxLibgpioIF(object_id_t objectId);
+  virtual ~LinuxLibgpioIF();
+
+  ReturnValue_t addGpios(GpioCookie* gpioCookie) override;
+  ReturnValue_t pullHigh(gpioId_t gpioId) override;
+  ReturnValue_t pullLow(gpioId_t gpioId) override;
+  ReturnValue_t readGpio(gpioId_t gpioId, int* gpioState) override;
+
+ private:
+  /* Holds the information and configuration of all used GPIOs */
+  GpioMap gpioMap;
+  GpioMapIter gpioMapIter;
+
+  /**
+   * @brief	This functions drives line of a GPIO specified by the GPIO ID.
+   *
+   * @param gpioId	The GPIO ID of the GPIO to drive.
+   * @param logiclevel	The logic level to set. O or 1.
+   */
+  ReturnValue_t driveGpio(gpioId_t gpioId, GpiodRegularBase& regularGpio, unsigned int logiclevel);
+
+  ReturnValue_t configureRegularGpio(gpioId_t gpioId, GpiodRegularBase& regularGpio);
+
+  /**
+   * @brief	This function checks if GPIOs are already registered and whether
+   * 			there exists a conflict in the GPIO configuration. E.g. the
+   * 			direction.
+   *
+   * @param mapToAdd	The GPIOs which shall be added to the gpioMap.
+   *
+   * @return	RETURN_OK if successful, otherwise RETURN_FAILED
+   */
+  ReturnValue_t checkForConflicts(GpioMap& mapToAdd);
+
+  ReturnValue_t checkForConflictsRegularGpio(gpioId_t gpiodId, GpiodRegular* regularGpio,
+                                             GpioMap& mapToAdd);
+  ReturnValue_t checkForConflictsCallbackGpio(gpioId_t gpiodId, GpioCallback* regularGpio,
+                                              GpioMap& mapToAdd);
+
+  /**
+   * @brief   Performs the initial configuration of all GPIOs specified in the GpioMap mapToAdd.
+   */
+  ReturnValue_t configureGpios(GpioMap& mapToAdd);
+};
+
+#endif /* LINUX_GPIO_LINUXLIBGPIOIF_H_ */

archive/gpio/gpioDefinitions.h

@@ -0,0 +1,83 @@
+#ifndef LINUX_GPIO_GPIODEFINITIONS_H_
+#define LINUX_GPIO_GPIODEFINITIONS_H_
+
+#include <string>
+#include <unordered_map>
+
+using gpioId_t = uint16_t;
+
+namespace gpio {
+
+enum class Levels : uint8_t { LOW = 0, HIGH = 1 };
+
+enum class Direction : uint8_t { IN = 0, OUT = 1 };
+
+enum class GpioOperation { READ, WRITE };
+
+enum class GpioTypes { NONE, GPIOD_REGULAR, CALLBACK };
+
+static constexpr gpioId_t NO_GPIO = -1;
+}  // namespace gpio
+
+/**
+ * @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_ */