1 files changed, 77 insertions, 0 deletions
diff --git a/util/util.h b/util/util.h
new file mode 100644
index 0000000..06ef2fb
--- /dev/null
+++ b/util/util.h
@@ -0,0 +1,77 @@
+#ifndef UTIL_H
+#define UTIL_H
+
+#include "legato.h"
+#include <termios.h>
+
+#define HIGH 1
+#define LOW 0
+
+typedef struct {
+  int i;
+  void* arr;
+  void* ctxp;
+} FunctionalArgs;
+
+typedef struct {
+  int n;                                   // number of elements in array
+  bool (*callback)(FunctionalArgs* args);  // callback applied to arr[i]
+  void* (*derefCallback)(int i, void* j);  // callback used to deference arr[i]
+  FunctionalArgs args;
+} Functional;
+
+// ioutil
+le_result_t readFromFile(const char* path,
+                         void* value,
+                         int (*scanCallback)(FILE* f, void* val));
+int scanDoubleCallback(FILE* f, void* value);
+le_result_t ioutil_readIntFromFile(const char* path, int* value);
+le_result_t ioutil_readDoubleFromFile(const char* filePath, double* value);
+le_result_t ioutil_writeToFile(const char* path,
+                               void* value,
+                               size_t size,
+                               size_t count);
+
+le_result_t ioutil_appendToFile(const char* path,
+                                void* value,
+                                size_t size,
+                                size_t count);
+
+// TODO fix this name (no PascalCase)
+uint64_t GetCurrentTimestamp(void);
+time_t util_getMTime(char* path);
+int util_getUnixDatetime();
+le_result_t util_flattenRes(le_result_t* res, int nRes);
+bool util_fileExists(const char* path);
+bool util_alreadyMounted(const char* devPath);
+double util_avgDouble(double* readings, int nReadings);
+
+// TODO verify this is working
+le_result_t gpio_exportPin(char* pin);
+le_result_t gpio_unexportPin(char* pin);
+void getGpioPath(char* outputStr, char* pin, char* subDir);
+le_result_t gpio_setDirection(char* pin, char* direction);
+le_result_t gpio_setInput(char* pin);
+le_result_t gpio_setOutput(char* pin);
+le_result_t gpio_setActiveState(char* pin, bool isActiveLow);
+le_result_t gpio_isActive(char* pin, bool* isActive);
+le_result_t gpio_setValue(char* pin, bool state);
+le_result_t gpio_setLow(char* pin);
+le_result_t gpio_setHigh(char* pin);
+le_result_t gpio_setPull(char* pin, char* pull);
+le_result_t gpio_pullDown(char* pin);
+le_result_t gpio_pullUp(char* pin);
+
+void* util_find(Functional* f);
+
+void util_listDir(const char* dir, char* dest, size_t size);
+
+int fd_openSerial(const char* device, int baud);
+speed_t fd_convertBaud(int baud);
+int fd_puts(const int fd, const char* s);
+int fd_getChar(const int fd);
+void fd_flush(const int fd);
+int fd_dataAvail(int fd, int* data);
+void fd_flushInput(const int fd);
+
+#endif