drivers.c

zigbee 飞思卡尔 音频传输 基于ucos的所有源码

	MCF_GPIO_PORTUB = (MCF_GPIO_PORTUB & 0xFB);
}


/*
 * RTXENAssert : Assert the MC13192 RTXEN pin (initiates programmed cycle)
 *
 * Parameters : None
 *
 * Return : None
 */
void RTXENAssert(void)
{
	MCF_GPIO_PORTUB = (MCF_GPIO_PORTUB | 0x04);
}


/*
 * SPIDrvWrite : Write 1 word to SPI
 *
 * Parameters : u8Addr - SPI address
 * u16Content - Data to send
 *
 * Return : None
 */
void SPIDrvWrite(UINT8 addr, UINT16 content)
{

	/*disable interrupts to avoid double access to zigbee spi*/
	MC13192DisableInterrupts();
	/*Initialize Tx pkt Ram*/
	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x0000;		/*initialize CR for 8 bit xfer*/
	MCF_QSPI_QAR = 0x00;		/*points to TX pkt ram*/
	MCF_QSPI_QDR = addr; 		/*loads address */
	AssertCE();
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (0xD00F | MCF_QSPI_QIR_SPIF);
	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x4000;		/*initialize CR for 16 bit xfer*/
	MCF_QSPI_QAR = 0x00;		/*points to TX pkt ram*/
	MCF_QSPI_QDR = content; 		/*loads high byte */
	MCF_QSPI_QDLYR = 0x8000; 	/*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (0xD00F | MCF_QSPI_QIR_SPIF);
	DeAssertCE();
	/*enable interrupts*/
	MC13192RestoreInterrupts();
}


/*
 * SPIDrvRead : Read 1 word from SPI
 *
 * Parameters : u8Addr - SPI address
 *
 * Return : u16Data -  u16Data[0] is the MSB, u16Data[1] is the LSB
 */
UINT16 SPIDrvRead(UINT8 addr)
{

	UINT16 value;
	
	MC13192DisableInterrupts();
	/*Initialize Tx pkt Ram*/
	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x0000;		/*initialize CR for pkt*/
	MCF_QSPI_QAR = 0x00;		/*points to TX pkt ram*/
	MCF_QSPI_QDR = (addr | 0x80); 		/*sets destination*/
	AssertCE();
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF);
	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x4000;		/*initialize CR for pkt*/
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF);
	MCF_QSPI_QAR = 0x10;
	value = MCF_QSPI_QDR;
	DeAssertCE();
	MC13192RestoreInterrupts();
	return value;	
}

/*
 * SPIDrvRead2 : Read the second word from SPI
 *
 * Parameters : u8Addr - SPI address
 *
 * Return : u16Data -  u16Data[0] is the MSB, u16Data[1] is the LSB
 */
UINT16 SPIDrvRead2(UINT8 addr)
{

	UINT8 tempvalue;
	UINT16 value;
	
	MC13192DisableInterrupts();
	/*Initialize Tx pkt Ram*/
	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x0000;		/*initialize CR for pkt*/
	MCF_QSPI_QAR = 0x00;		/*points to TX pkt ram*/
	MCF_QSPI_QDR = (addr | 0x80); 		/*sets destination*/
	AssertCE();
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF);
	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x4000;		/*initialize CR for pkt*/
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF);
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF);
	MCF_QSPI_QAR = 0x10;
	value = MCF_QSPI_QDR;
	DeAssertCE();
	MC13192RestoreInterrupts();
	return value;	
}



/*
 * MC13192DisableInterrupts : Disable MC13192 interrupts
 *
 * Parameters : None
 *
 * Return : None
 */
void MC13192DisableInterrupts(void)
{
	gu8IRQValue = MCF_EPORT_EPIER;
	MCF_EPORT_EPIER = (gu8IRQValue & 0xFD);
}


/*
 * MC13192RestoreInterrupts : Restore MC13192 interrupts to previous condition
 *
 * Parameters : None
 *
 * Return : None
 */
void MC13192RestoreInterrupts(void)
{
	MCF_EPORT_EPIER = gu8IRQValue;
}


/*
 * RAMDrvWriteTx : Write a block of data to TX packet RAM, whichever is selected
 *
 * Parameters : length - Length of the block of data in bytes
 * *contents - Pointer to the data block
 *
 * Return : None
 */
void RAMDrvWriteTx(tTxPacket *tx_pkt)
{
	UINT16 tmp;
	UINT8 tmp2;
	int i;
	
	/*Prepare the packet length by adding 2 to the total value*/ 
	/*for MDR purposes*/
	tmp = SPIDrvRead(TX_PKT_LEN);
	SPIDrvWrite(TX_PKT_LEN,((tmp & 0xFF80) | (tx_pkt->u8DataLength + 4) ));
	MC13192DisableInterrupts();
	MCF_QSPI_QAR = 0x20;
	MCF_QSPI_QDR = 0x0000;
	MCF_QSPI_QAR = 0x00;			/*points to TX pkt ram*/
	MCF_QSPI_QDR = TX_PKT;
	/*Drop chip select and send address and first byte*/
	AssertCE();
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (0xD00F | MCF_QSPI_QIR_SPIF);
	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x4000;	    /*16 bit transfers*/
	MCF_QSPI_QAR = 0x00;			/*points to TX pkt ram*/
	MCF_QSPI_QDR = 0xFF7E;
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
	MCF_QSPI_QIR = (0xD00F | MCF_QSPI_QIR_SPIF);
	for(i=0; i<=tx_pkt->u8DataLength;)
	//for (i=0; i<((tx_pkt->u8DataLength+1) >> 1); i++)
	{
		MCF_QSPI_QAR = 0x00;
		MCF_QSPI_QDR = (((UINT16)tx_pkt->pu8Data[i+1])<<8|(UINT16)tx_pkt->pu8Data[i]);	/* high byte */
		//MCF_QSPI_QDR = (UINT8)tx_pkt->pu8Data[i+1];	/* high byte */
		MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
		SPIWaitTransferDone ();
		MCF_QSPI_QIR = (0xD00F | MCF_QSPI_QIR_SPIF);
		
		//MCF_QSPI_QAR = 0x00;
		//MCF_QSPI_QDR = (UINT8)tx_pkt->pu8Data[i];	/* low byte */
		//MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
		//SPIWaitTransferDone ();
		//MCF_QSPI_QIR = (0xD00F | MCF_QSPI_QIR_SPIF);
		i = i+2;
	}
	DeAssertCE();
	MC13192RestoreInterrupts();
}


/*
 * RAMDrvReadRx : Read a block of data from RX packet RAM, whichever is selected
 *
 * Parameters : *length - Returned length of the block of data in bytes
 * *contents - Pointer to the data block storage
 *
 * Return : Status
 */
UINT8 RAMDrvReadRx(tRxPacket *rx_pkt)
{
	UINT16 tmp;
	UINT8 tmp2;

	int i;	
	rx_pkt->u8DataLength  = rx_pkt->u8DataLength  - 4;
	
	MC13192DisableInterrupts();	
  	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x0000;		/*initialize CR for pkt*/
  	/*Grab first byte*/
  	MCF_QSPI_QAR = 0x00;		/*points to TX pkt ram*/
	MCF_QSPI_QDR = 0x81; 		/*sets destination*/
  	AssertCE();
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
  	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF); /*clears tsfr status bit*/
  	MCF_QSPI_QAR = 0x20;		/*points to the command ram*/
	MCF_QSPI_QDR = 0x4000;		/*initialize CR for pkt*/
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
  	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF); /*clears tsfr status bit*/
	/*2 bytes have been ignored*/
	MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
	SPIWaitTransferDone ();
  	MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF); /*clears tsfr status bit*/
	/*2byte codes have been ignored*/
	for(i = 0; i<= rx_pkt->u8DataLength ;)
  	{
  		MCF_QSPI_QDLYR = 0x8000; /*will tsfr above info to zigbee*/
		SPIWaitTransferDone ();
  		MCF_QSPI_QIR = (MCF_QSPI_QIR | MCF_QSPI_QIR_SPIF); /*clears tsfr status bit*/
		MCF_QSPI_QAR = 0x10;
		tmp = MCF_QSPI_QDR;
		if(i+1 == rx_pkt->u8DataLength )
		{
			/*do nothing garbage byte*/
		}
		else
		{
			rx_pkt->pu8Data[i+1] = (tmp>>8);
		}
		rx_pkt->pu8Data[i] = tmp;
		i = i + 2;
	}
	DeAssertCE();
	MC13192RestoreInterrupts();
	return SUCCESS;
}