/*
 * FreeRTOS Kernel V10.1.1
 * Copyright (C) 2018 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!
 */

/* Standard includes. */
#include <stdio.h>

/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"

/* Platfrom includes. */
#include "platform.h"

/*
 * Configure the hardware as necessary to run this demo.
 */
static void prvSetupHardware( void );
static void AppTaskCreate (void);

/* Prototypes for the standard FreeRTOS callback/hook functions implemented
within this file. */
void vApplicationMallocFailedHook( void );
void vApplicationIdleHook( void );
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
void vApplicationTickHook( void );

/*-----------------------------------------------------------*/
#define CUSTOMER_TEST

int main( void )
{
	/* Configure the hardware ready to run the demo. */
	prvSetupHardware();

#ifdef CUSTOMER_TEST
    AppTaskCreate();

    // start the task
    vTaskStartScheduler();
#endif
    for( ;; );

	/* Don't expect to reach here. */
	return 0;
}

#ifdef CUSTOMER_TEST
static TaskHandle_t xHandleTaskB = NULL;
static TaskHandle_t xHandleTaskC = NULL;

static void vTaskB(void *pvParameters)
{
    static uint16_t TaskBnum=0;
    while(1)
    {
        TaskBnum++;
        printf("Task B : %d \r\n",TaskBnum);
        vTaskDelay(500);
    }
}

static void vTaskC(void *pvParameters)
{
    static uint16_t TaskCnum=0;
    while(1)
    {
        TaskCnum++;
        printf("Task C : %d \r\n",TaskCnum);
        vTaskDelay(500);//退出调度500个ticks
    }
}

static void AppTaskCreate (void)
{
    xTaskCreate(
                vTaskB,         /* 任务函数 */
                "vTaskB",       /* 任务名 */
                128,            /* 任务栈大小，单位 word，也就是 4 字节 */
                NULL,           /* 任务参数 */
                4,              /* 任务优先级*/
                &xHandleTaskB   /* 任务句柄 */
                );

    xTaskCreate(
                vTaskC,
                "vTaskC",
                128,
                NULL,
                3,
                &xHandleTaskC
                );
}
#endif
/*-----------------------------------------------------------*/

static void prvSetupHardware( void )
{
	/* Ensure no interrupts execute while the scheduler is in an inconsistent
	state.  Interrupts are automatically enabled when the scheduler is
	started. */
	portDISABLE_INTERRUPTS();

	/* Enable UART port to output messages. */
    uart_print_config();
}
/*-----------------------------------------------------------*/

void vAssertCalled( const char * pcFile, unsigned long ulLine )
{
volatile unsigned long ul = 0;

	( void ) pcFile;
	( void ) ulLine;

	printf( "ASSERT! Line %d, file %s\r\n", ( int )ulLine, pcFile );

	taskENTER_CRITICAL();
	{
		/* Set ul to a non-zero value using the debugger to step out of this
		function. */
		while( ul == 0 )
		{
			portNOP();
		}
	}
	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 is being 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).  See http://www.freertos.org/a00111.html for more
	information. */
	vAssertCalled( __FILE__, __LINE__ );
}
/*-----------------------------------------------------------*/

void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
{
	( void ) pcTaskName;
	( void ) pxTask;

	/* Run time stack overflow checking is performed if
	configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2.  This hook
	function is called if a stack overflow is detected. */
	vAssertCalled( __FILE__, __LINE__ );
}
/*-----------------------------------------------------------*/

void vApplicationIdleHook( void )
{
volatile size_t xFreeHeapSpace;

	/* This is just a trivial example of an idle hook.  It is called on each
	cycle of the idle task.  It must *NOT* attempt to block.  In this case the
	idle task just queries the amount of FreeRTOS heap that remains.  See the
	memory management section on the http://www.FreeRTOS.org web site for memory
	management options.  If there is a lot of heap memory free then the
	configTOTAL_HEAP_SIZE value in FreeRTOSConfig.h can be reduced to free up
	RAM. */
	xFreeHeapSpace = xPortGetFreeHeapSize();

	/* Remove compiler warning about xFreeHeapSpace being set but never used. */
	( void ) xFreeHeapSpace;
}

/*-----------------------------------------------------------*/

void vApplicationTickHook( void )
{
	#if( mainSELECTED_APPLICATION == 1 )
	{
		/* Only the comprehensive demo actually uses the tick hook. */
		extern void vFullDemoTickHook( void );
		vFullDemoTickHook();
	}
	#endif
}
/*-----------------------------------------------------------*/

/* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
used by the Idle task. */
void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize )
{
/* If the buffers to be provided to the Idle task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xIdleTaskTCB;
static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];

	/* Pass out a pointer to the StaticTask_t structure in which the Idle task's
	state will be stored. */
	*ppxIdleTaskTCBBuffer = &xIdleTaskTCB;

	/* Pass out the array that will be used as the Idle task's stack. */
	*ppxIdleTaskStackBuffer = uxIdleTaskStack;

	/* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.
	Note that, as the array is necessarily of type StackType_t,
	configMINIMAL_STACK_SIZE is specified in words, not bytes. */
	*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
}
/*-----------------------------------------------------------*/

/* configUSE_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the
application must provide an implementation of vApplicationGetTimerTaskMemory()
to provide the memory that is used by the Timer service task. */
void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize )
{
/* If the buffers to be provided to the Timer task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xTimerTaskTCB;
static StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];

	/* Pass out a pointer to the StaticTask_t structure in which the Timer
	task's state will be stored. */
	*ppxTimerTaskTCBBuffer = &xTimerTaskTCB;

	/* Pass out the array that will be used as the Timer task's stack. */
	*ppxTimerTaskStackBuffer = uxTimerTaskStack;

	/* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
	Note that, as the array is necessarily of type StackType_t,
	configMINIMAL_STACK_SIZE is specified in words, not bytes. */
	*pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
}
/*-----------------------------------------------------------*/

void vPreSleepProcessing( unsigned long uxModifiableIdleTime )
{
	/* Called by the kernel before it places the MCU into a sleep mode because
	configPRE_SLEEP_PROCESSING() is #defined to vPreSleepProcessing().

	NOTE:  Additional actions can be taken here to get the power consumption
	even lower.  For example, peripherals can be turned	off here, and then back
	on again in the post sleep processing function.  For maximum power saving
	ensure all unused pins are in their lowest power state. */

	/* Avoid compiler warnings about the unused parameter. */
	( void ) uxModifiableIdleTime;
}
/*-----------------------------------------------------------*/

void vPostSleepProcessing( unsigned long uxModifiableIdleTime )
{
	/* Called by the kernel when the MCU exits a sleep mode because
	configPOST_SLEEP_PROCESSING is #defined to vPostSleepProcessing(). */

	/* Avoid compiler warnings about the unused parameter. */
	( void ) uxModifiableIdleTime;
}