#include "radio.h"
#include "project_config.h"
#include "stdio.h"
#include "stm32f10x_it.h"
#include "delay.h"
#include "string.h"

/*!
 * Radio events function pointer
 * 这个是传参进入其他函数中了，所以用全局变量(局部变量使用完了内存释放可能导致异常)
 */
static RadioEvents_t SX126xRadioEvents;

static void SX126xOnTxDone( void );
static void SX126xOnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );
static void SX126xOnTxTimeout( void );
static void SX126xOnRxTimeout( void );
static void SX126xOnRxError( void );

static void SX126xOnTxDone( void )
{
	printf("TxDone\r\n");
	Radio.Standby();
	Radio.Rx( LORA_RX_TIMEOUT_VALUE );
}

static void SX126xOnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
{
	uint32_t reciveNumber=0;
	
	Radio.Standby();

	printf("RxDone size:%d <rssi:%d, snr:%d> \r\n",size, rssi, snr);	
	if(size!=4){
		printf("recive size != 4 is error\r\n");
	} else {
		reciveNumber = *(uint32_t *)payload;
		printf("recive u32 data = %d\r\n", reciveNumber);
		reciveNumber += 1;
		Radio.Send((uint8_t *)&reciveNumber, 4);
	}
}

static void SX126xOnTxTimeout( void )
{
	printf("TxTimeout\r\n");
}

static void SX126xOnRxTimeout( void )
{
	Radio.Standby();
	printf("RxTimeout retry recive\r\n");
	Radio.Rx( LORA_RX_TIMEOUT_VALUE ); 
}

static void SX126xOnRxError( void )
{
	Radio.Standby();
	printf("RxError retry recive\r\n");
	Radio.Rx(LORA_RX_TIMEOUT_VALUE); 
}

bool  EnableMaster=true;//主从选择 true为主 false 为从
int lora_test(void)
{
	static uint8_t init = 0;
	uint32_t u32_count=0;
	
	if(init == 0) {
		SX126xRadioEvents.TxDone = SX126xOnTxDone;
		SX126xRadioEvents.RxDone = SX126xOnRxDone;
		SX126xRadioEvents.TxTimeout = SX126xOnTxTimeout;
		SX126xRadioEvents.RxTimeout = SX126xOnRxTimeout;
		SX126xRadioEvents.RxError = SX126xOnRxError;

		Radio.Init( &SX126xRadioEvents );
		Radio.SetChannel(LORA_FRE);
		Radio.SetTxConfig( MODEM_LORA, LORA_TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
	                     LORA_SPREADING_FACTOR, LORA_CODINGRATE,
	                     LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
	                     true, 0, 0, LORA_IQ_INVERSION_ON, 3000 );//参数：lora模式,发射功率,fsk用的lora设置为0就可以，带宽，纠错编码率，前导码长度，固定长度数据包(一般是不固定的所以选false)，crc校验，0表示关闭跳频，跳频之间的符号数(关闭跳频这个参数没有意义)，这个应该是表示是否要翻转中断电平的，超时时间

		Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
	                     LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
	                     LORA_SX126X_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
	                     0, true, 0, 0, LORA_IQ_INVERSION_ON, false );

		if(EnableMaster == true) {
			Radio.Send((uint8_t *)&u32_count, 4);
		} else {
			Radio.Rx( LORA_RX_TIMEOUT_VALUE );
		}
		init = 1;
	}

	Radio.IrqProcess( ); // Process Radio IRQ

	return 0;
}