devicelist.c

/***********************************************************************************
 * @file        devicelist.c                                                       *
 * @author      Matt Ricci                                                         *
 * @addtogroup  Device_Management                                                  *
 *                                                                                 *
 * @{                                                                              *
 ***********************************************************************************/
 
#include "devicelist.h"
 
#include "stddef.h"
#include "string.h"
 
static DeviceHandle_t *deviceListPtr;
 
/* =============================================================================== */
void DeviceList_init(DeviceHandle_t deviceList[DEVICE_MAX_KEYS]) {
  deviceListPtr = deviceList;
}
 
/* =============================================================================== */
DeviceHandle_t DeviceList_getDeviceHandle(DeviceKey key) {
  // Return empty handle if key is invalid
  if (key >= DEVICE_MAX_KEYS)
    return (DeviceHandle_t){"NOTFOUND", NULL};
 
  // Otherwise, return device
  return deviceListPtr[key];
}
 
/* =============================================================================== */
 
DeviceHandle_t DeviceList_getDeviceHandleFromName(char *name) {
  // Iterate list searching for matching device
  for (int i = 0; i < DEVICE_MAX_KEYS; i++) {
    if (!strcmp(deviceListPtr[i].deviceName, name))
      // Return handle if found
      return deviceListPtr[i];
  }
 
  // Otherwise, return empty handle
  return (DeviceHandle_t){"NOTFOUND", NULL};
}
 
/* =============================================================================== */
DeviceHandle_t *DeviceList_getDeviceHandlePointer(DeviceKey key) {
  // Return null pointer if key is invalid
  if (key >= DEVICE_MAX_KEYS)
    return NULL;
 
  // Otherwise, return requested pointer
  return &deviceListPtr[key];
}
 
/* =============================================================================== */
void DeviceList_printDevices() {
  /* TODO: Must implement printf retarget
  for (int i = 0; i < DEVICE_MAX_KEYS; i++)
    printf("%s\n", deviceListPtr[i].deviceName);
  */
}