text: /****************************************************************************
   *
   *  Copyright (C) 2012 PX4 Development Team. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   * 3. Neither the name NuttX nor the names of its contributors may be
   *    used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   ****************************************************************************/
  
  /****************************************************************************
   * Included Files
   ****************************************************************************/
  
  #include <px4_time.h>
  #include <px4_config.h>
  #include <px4_posix.h>
  
  #include <sys/types.h>
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <unistd.h>
  #include <fcntl.h>
  #include <errno.h>
  
  #include <arch/board/board.h>
  
  #include <drivers/drv_board_led.h>
  
  #include "tests_main.h"
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  
  /****************************************************************************
   * Private Types
   ****************************************************************************/
  
  /****************************************************************************
   * Private Function Prototypes
   ****************************************************************************/
  
  /****************************************************************************
   * Private Data
   ****************************************************************************/
  
  /****************************************************************************
   * Public Data
   ****************************************************************************/
  
  /****************************************************************************
   * Private Functions
   ****************************************************************************/
  
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: test_led
   ****************************************************************************/
  
  int test_led(int argc, char *argv[])
  {
  	int		fd;
  	int		ret = 0;
  
  	fd = px4_open(LED0_DEVICE_PATH, 0);
  
  	if (fd < 0) {
  		printf("\tLED: open fail\n");
  		return ERROR;
  	}
  
  	if (px4_ioctl(fd, LED_ON, LED_BLUE) ||
  	    px4_ioctl(fd, LED_ON, LED_AMBER)) {
  
  		printf("\tLED: ioctl fail\n");
  		return ERROR;
  	}
  
  	/* let them blink for fun */
  
  	int i;
  	uint8_t ledon = 1;
  
  	for (i = 0; i < 10; i++) {
  		if (ledon) {
  			px4_ioctl(fd, LED_ON, LED_BLUE);
  			px4_ioctl(fd, LED_OFF, LED_AMBER);
  
  		} else {
  			px4_ioctl(fd, LED_OFF, LED_BLUE);
  			px4_ioctl(fd, LED_ON, LED_AMBER);
  		}
  
  		ledon = !ledon;
  		px4_usleep(60000);
  	}
  
  	/* Go back to default */
  	px4_ioctl(fd, LED_ON, LED_BLUE);
  	px4_ioctl(fd, LED_OFF, LED_AMBER);
  
  	printf("\t LED test completed, no errors.\n");
  
  	return ret;
  }
  