/*
 * FreeRTOS Kernel V10.3.0
 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * http://www.FreeRTOS.org
 * http://aws.amazon.com/freertos
 *
 * 1 tab == 4 spaces!
 */

/******************************************************************************
 *
 * This demo is described on the following web page:
 * TODO: This link describes the FAT version of this demo.
 * http://www.freertos.org/FreeRTOS-Plus/Fail_Safe_File_System/Fail_Safe_Embedded_File_System_demo.shtml
 *
 ******************************************************************************/

/* Standard includes. */
#include <stdio.h>
#include <stdint.h>

/* FreeRTOS includes. */
#include <FreeRTOS.h>
#include "task.h"
#include "queue.h"
#include "semphr.h"

/* Priorities at which the tasks are created. */
#define mainUDP_CLI_TASK_PRIORITY			( tskIDLE_PRIORITY )

/*-----------------------------------------------------------*/

/*
 * Register the generic commands that can be used with FreeRTOS+CLI.
 */
extern void vRegisterSampleCLICommands( void );

/*
 * Register the file system commands that can be used with FreeRTOS+CLI.
 */
extern void vRegisterFileSystemCLICommands( void );

/*
 * The task that implements the UDP command interpreter using FreeRTOS+CLI.
 */
extern void vUDPCommandInterpreterTask( void *pvParameters );

/*
 * Creates and verifies different files on the volume, demonstrating the use of
 * various different API functions.
 */
extern void vCreateAndVerifySampleFiles( void );

/*-----------------------------------------------------------*/

/* See http://www.freertos.org/FreeRTOS-Plus/Fail_Safe_File_System/Fail_Safe_Embedded_File_System_demo.shtml
for instructions. */

int main( void )
{
const uint32_t ulLongTime_ms = 250UL;

	/* Initialise the drive and file system, then create a few example
	files.  The output from this function just goes to the stdout window,
	allowing the output to be viewed when the UDP command console is not
	connected. */
	vCreateAndVerifySampleFiles();

	/* Register generic commands with the FreeRTOS+CLI command interpreter. */
	vRegisterSampleCLICommands();

	/* Register file system related commands with the FreeRTOS+CLI command
	interpreter. */
	vRegisterFileSystemCLICommands();

	/* Create the task that handles the CLI on a UDP port.  The port number
	is set using the configUDP_CLI_PORT_NUMBER setting in FreeRTOSConfig.h. */
	xTaskCreate( vUDPCommandInterpreterTask, 	/* The function that implements the command interpreter IO handling. */
				"CLI", 							/* The name of the task - just to assist debugging. */
				configMINIMAL_STACK_SIZE, NULL, /* The size of the stack allocated to the task. */
				mainUDP_CLI_TASK_PRIORITY, 		/* The priority at which the task will run. */
				NULL );							/* A handle to the task is not required, so NULL is passed. */

	/* Start the RTOS scheduler. */
	vTaskStartScheduler();

	/* If all is well, the scheduler will now be running, and the following
	line will never be reached.  If the following line does execute, then
	there was insufficient FreeRTOS heap memory available for the idle and/or
	timer tasks	to be created.  See the memory management section on the
	FreeRTOS web site for more details (this is standard text that is not
	really applicable to the Win32 simulator port). */
	for( ;; )
	{
		Sleep( ulLongTime_ms );
	}
}
/*-----------------------------------------------------------*/

void vApplicationIdleHook( void )
{
const unsigned long ulMSToSleep = 5;

	/* This function is called on each cycle of the idle task if
	configUSE_IDLE_HOOK is set to 1 in FreeRTOSConfig.h.  Sleep to reduce CPU
	load. */
	Sleep( ulMSToSleep );
}
/*-----------------------------------------------------------*/

void vAssertCalled( const char *pcFile, unsigned long ulLine )
{
volatile uint32_t ulSetToNonZeroToExitLoop = 0;

	printf( "ASSERT FAILED: File %s, line %u\r\n", pcFile, ulLine );

	taskENTER_CRITICAL();
	{
		while( ulSetToNonZeroToExitLoop == 0 )
		{
			/* Do not leave the assert function unless the debugger is used to
			set ulSetToNonZeroToExitLoop to a non-zero value. */
		}
	}
	taskEXIT_CRITICAL();
}
/*-----------------------------------------------------------*/

void vApplicationMallocFailedHook( void )
{
	/* vApplicationMallocFailedHook() will only be called if
	configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h.  It is a hook
	function that will get called if a call to pvPortMalloc() fails.
	pvPortMalloc() is called internally by the kernel whenever a task, queue,
	timer or semaphore is created.  It is also called by various parts of the
	demo application.  If heap_1.c, heap_2.c or heap_4.c are used, then the
	size of the heap available to pvPortMalloc() is defined by
	configTOTAL_HEAP_SIZE in FreeRTOSConfig.h, and the xPortGetFreeHeapSize()
	API function can be used to query the size of free heap space that remains
	(although it does not provide information on how the remaining heap might
	be fragmented). */
	taskDISABLE_INTERRUPTS();
	for( ;; );
}