usb_connection.c

silicon wireless开发套件F920+Si4432原理图,源码

/*
** ============================================================================
**
** FILE
**  USB_connection.c
**
** DESCRIPTION
**  realizes the UART command interpreter
**
** CREATED
**  Silicon Laboratories Hungary Ltd
**
** COPYRIGHT
**  Copyright 2008 Silicon Laboratories, Inc.  
**	http://www.silabs.com
**
** ============================================================================
*/
#ifndef USB_CONNECTION_C
#define USB_CONNECTION_C

#include "S8051.h"
#include "uart.h"

/*------------------------------------------------------------------------*/
/*						GLOBAL variables								  */
/*------------------------------------------------------------------------*/
extern idata uint8 UartEcho;
extern code uint8 FirmwareVersion[5];
extern code uint8 HardwareVersion[5];			


/*------------------------------------------------------------------------*/
/*						FUNCTION prototypes								  */
/*------------------------------------------------------------------------*/
void _PrintDataH(uint8 d, uint8 chr);
void _PrintSpiIn(void);
uint8 _GetRegisterContent(uint8 * d, uint16 * command);
uint8 _AsciiTiInt(uint8 d);
uint8 _AsciiToBCD(uint8 d);

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  uint8 USBConnectionSupport(uint8 * uart_buffer)
  +
  + DESCRIPTION:    command interpreter
  +
  +	INPUT:			uart_buffer - pointer to the buffer contains the received command
  +
  + RETURN:         TRUE  - command is valid
  +					FALSE - other case
  +
  + NOTES:          
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
uint8 USBConnectionSupport(uint8 * uart_buffer)
{
	uint8 temp8;
	uint16 temp16;
	UU16 temp,ReceivedWord;

	/*PRINT VERSION INFORMATION*/
	if( uart_buffer[0] == 'i' || uart_buffer[0] == 'I' )
	{
		printf("\n\rSoftware Development Board FW V%s, HW V%s\n\rSilicon Labs., 2008",FirmwareVersion,HardwareVersion);
		printf("\n\rwww.silabs.com");
		return TRUE;
	}
	
	/*SET ECHO*/
	if( uart_buffer[0] == 'e' || uart_buffer[0] == 'E' )		//================================
	{															// echo_mode | 0 | 1 | 2 | 3 | 4 |
		temp8 = uart_buffer[1] - '0';							//--------------------------------
		if( (temp8 < 5) && (uart_buffer[2] == 0) )				// Echo      |   | X |   |   |   |
		{														// "SPI in:" |   | X |   |   |   |
			UartEcho = temp8;									// data read |   | X | X | X |   |
			return TRUE;										// ">"       | X | X | X | X | X |
		}														//================================
	}															

	/*SEND TWO BYTES OF SPI COMMAND*/
	if( (memcmp(&uart_buffer[0], "s2", 2) == 0) || (memcmp(&uart_buffer[0], "S2", 2) == 0) )
	{//set register	
		temp8 = _GetRegisterContent(&uart_buffer[2], &temp16);
		if( temp8 == TRUE )
		{
			temp.U16 = temp16;
			ReceivedWord = SpiRfReadWriteWord(temp);
			_PrintSpiIn();
			_PrintDataH(ReceivedWord.U8[MSB], 0);
			_PrintDataH(ReceivedWord.U8[LSB], 'h');
			return TRUE;
		}		
	}

	/*HELP*/
	if( (memcmp(&uart_buffer[0], "?", 1) == 0) )
	{
		PrintHelp();
		return TRUE;
	}

	return FALSE;
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void PrintHelp(void)
  +
  + DESCRIPTION:    prints out the available functions of the demo board
  +
  + RETURN:         
  +
  + NOTES:          
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void PrintHelp(void)
{
	printf("\r\n----------------------------------HELP----------------------------------\r\n");
	printf("CONTROL FROM WDS\r\n - 'S2xxxx':   send two bytes of SPI command\r\n");
	printf(" - 'Ex':       set echo mode\r\n");
	printf(" - 'I':        get board information\r\n\r\n");
	printf("-------------------------------------------------------------------------\r\n");
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void _PrintSpiIn(void)
  +
  + DESCRIPTION:    prints out SPI IN: according the echo tpye
  +
  + RETURN:         
  +
  + NOTES:          
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void _PrintSpiIn(void)
{
	switch(UartEcho)
   	{
   		case 1: 
	  	 printf("\n\rSPI IN: "); 
		break;

      	default: 
		break;
   	}
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void _PrintDataH(uint8 d, uint8 chr)
  +
  + DESCRIPTION:    prints out data
  +
  + RETURN:         
  +
  + NOTES:          
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void _PrintDataH(uint8 d, uint8 chr)
{
	switch(UartEcho)
   	{
    	case 1: 
		case 2: 
		case 3:
      	 printf("%02bx",d);
      	 if( chr ) 
		 {
			putchar(chr);
		 }
      	break;

      	default: 
		break;
   	}
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  uint8 _GetRegisterContent(uint8 * d, uint16 * command)
  +
  + DESCRIPTION:    get the register value
  +
  + RETURN:         d - value of the register  
  +
  + INPUT:			command - register address
  +
  + NOTES:          
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
uint8 _GetRegisterContent(uint8 * d, uint16 * command)
{
	uint8 temp8, shift, i;
	uint16 temp16;

	temp16 = 0;
	shift = 16;

	for(i=0;i<5;i++)
	{
		if( *d != 0 )
		{
			temp8 = _AsciiToBCD(*d++);
			if( temp8 != 0xFF )
			{
				shift -= 4;
				temp16 += ((uint16)temp8 << shift);
			}
			else
			{
				return FALSE;
			}
		}
		else
		{//no more data
			*command = temp16 >> shift;
			return TRUE;
		}
	}

	//there were no ENTER
	return FALSE;	
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  uint8 _AsciiToBCD(uint8 d)
  +
  + DESCRIPTION:    
  +
  + RETURN:         
  +
  + NOTES:          
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
uint8 _AsciiToBCD(uint8 d)
{
	uint8 temp8;

	temp8 = _AsciiTiInt(d);
	if( temp8 != 0xFF )
		return temp8;
	if( d > 64 && d < 71)
		return ( d - 55 );
	if( d > 96 && d < 103)
		return ( d - 87 );
	
	//not valid character
	return 0xFF;
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME: uint8 _AsciiTiInt(uint8 d)
  +
  + DESCRIPTION:    prints out data
  +
  + RETURN:         
  +
  + NOTES:          
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
uint8 _AsciiTiInt(uint8 d)
{	
	uint8 temp8;

	temp8 = d - 0x30;
	if( temp8 < 10 )
		return temp8;
	else
		return 0xFF;
}

#endif