/*----------------------------------------------------------------------------
	
	Designers Guide to the Cortex-M Family
	CMSIS mailbox Example
*----------------------------------------------------------------------------*/
#include "STM32F10x.h"
#include "cmsis_os.h"
#include "Board_LED.h"

typedef struct                                  //define the mail slot format
{																
	uint8_t LED0; 
	uint8_t LED1; 
	uint8_t LED2; 
	uint8_t	LED3;
} mail_format;

osMailQDef(mail_box, 16, mail_format);					//define the mailbox 
osMailQId  mail_box;														//define the mailbox id

void LED_Producer (void const *argument) 
{						
  uint8_t led0[12] = {1,0,0,0,1,1,1,1,0,0,0,0};									//create the patterns to send to the mailbox
  uint8_t led1[12] = {0,2,0,0,0,2,2,2,2,0,0,0};
  uint8_t led2[12] = {0,0,4,0,0,0,4,4,4,4,0,0};
  uint8_t led3[12] = {0,0,0,8,0,0,0,8,8,8,8,0};
  uint8_t index;
  mail_format *LEDtx;																//define a pointer in the mailslot format

  while (1) 
  {
    for(index=0;index<12;index++)
    {
      LEDtx = (mail_format*)osMailAlloc(mail_box, osWaitForever);			//allocate a mailslot
      LEDtx->LED0 = led0[index]; 											//Populate it with data
      LEDtx->LED1 = led1[index];
      LEDtx->LED2 = led2[index];
      LEDtx->LED3 = led3[index];
      osMailPut(mail_box, LEDtx);											//Post the mail to the mailbox
      osDelay(100);
    }
  }
}

void LED_Consumer (void const *argument) 
{
  osEvent evt;																	//declare an osEvent variable
  mail_format *LEDrx;																//define a pointer in the mailslot format
    
  while (1) 
  {
    evt = osMailGet(mail_box, osWaitForever);								//wait until a message arrives
    if(evt.status == osEventMail) 											//Check for a valid message
    {
      LEDrx = (mail_format*)evt.value.p;									//Set the receive pointer to the mailslot
      LED_SetOut(LEDrx->LED0|LEDrx->LED1|LEDrx->LED2|LEDrx->LED3);		//Use the data
      osMailFree(mail_box, LEDrx);										//Free the mailslot
    }
  }	
}

osThreadDef(LED_Producer, osPriorityNormal, 1,0);
osThreadDef(LED_Consumer, osPriorityNormal, 1,0);

int main (void) 
{
	osKernelInitialize ();                    // initialize CMSIS-RTOS
	 
	LED_Initialize ();
	mail_box = osMailCreate(osMailQ(mail_box), NULL);							// Create the mailbox
  osThreadCreate(osThread(LED_Producer), NULL);
	osThreadCreate(osThread(LED_Consumer), NULL);
	
	osKernelStart ();                         // start thread execution 	
}