#ifndef PC_PROTOCOL_H
#define PC_PROTOCOL_H
/*================================================================================================
 
 pcProtocol.h						SiWiCom copyright 2006		       		   v1.0 (2006-06-22)
 
 Name: Christoffer Martinsson 	E-mail: cm@cmtec.se 
 Name: Joakim Nilsson 			E-mail: mail@jopin.se

 Description: Routines for pcProtocol. Uses usart.h as tranceiver
 
	BytePos:	      0          1        2            6       7      
				 ----------- --------- ------       ------ ----------
	Name:		| startbyte | command | data | ... | data | checksum |
				 ----------- --------- ------       ------ ----------
	
	---------------------------------------------------------------------------------------------
	Name:		nrOfBytes:		Value:						PC:			SiWiCom:	
	---------------------------------------------------------------------------------------------
	Start byte 	1				0x0A 						R/W			R/W    

	Command		1				0x11 – GET_LOCAL_DATA		W			R	
								0x22 – LOCAL_DATA			R			W	
								0x33 – REMOTE_DATA			R			W	
								0x44 – LOCAL_UPDATE			W			R
								0x55 – REMOTE_UPDATE		W			R
								0xFE – ACK 					R/W			R/W

	Data		5	Value for the specified command above.	R/W			R/W
	
					GET_LOCAL_DATA	Byte0 – 0x55
									Byte1 – 0x55
									Byte2 – 0x55
									Byte3 – 0x55
									Byte4 – 0x55
			
					LOCAL_DATA:		Byte0 – Device address
									Byte1 – Temp value
									Byte2 – Battery value
									Byte3 – AUX vaule
									Byte4 – 0x00 (not used)
									
					REMOTE_DATA:	Byte0 – Device address
									Byte1 – Temp value
									Byte2 – Battery value
									Byte3 – AUX vaule
									Byte4 – RSSI value

					LOCAL_UPDATE:	Byte0 – New master address (0x00 = no change)
									Byte1 – New device address (0x00 = no change)
									Byte2 – New wakeup time (0x00 = no change)	
									Byte3 – ProgramMode
									
											0x00 = no change
											0x01 = IDLE
											0x02 = MASTER
											0x03 = SLAVE
											0x04 = NOICEMAKER
									
									Byte4 – 0x55 (not used)
									
					REMOTE_UPDATE:	Byte0 – Device address
									Byte1 – New master address (0x00 = no change)
									Byte2 – New device address (0x00 = no change)
									Byte3 – New wakeup time (0x00 = no change)	
									Byte4 – 0x55 (not used)

					ACK:			Byte0 – 0x55
									Byte1 – 0x55
									Byte2 – 0x55
									Byte3 – 0x55
									Byte4 – 0x55 

	Checksum	1	Sum of the previous byte in the packet.	R/W			R/W

 
================================================================================================*/
#define PC_START_BYTE 				0x0A

#define PC_COMMAND_GET_LOCAL_DATA	0x11
#define PC_COMMAND_LOCAL_DATA		0x22
#define PC_COMMAND_REMOTE_DATA		0x33
#define PC_COMMAND_LOCAL_UPDATE		0x44
#define PC_COMMAND_REMOTE_UPDATE	0x55
#define PC_COMMAND_ACK 				0xFE
#define PC_PADDING 					0x55
/*================================================================================================
 Functions
================================================================================================*/
/*================================================================================================
 pcProtocolSendData
 
 Description: Writes a data packet to the usart (command = DATA).

 Input:	dataType (LOCAL_DATA or REMOTE_DATA)
		deviceAddr (address for the slave device), 
		tempValue (value of the temperature sensor),
		batteryValue (value of the battery level),
		rssiValue (value of the RSSI value)
		
 Return: -
------------------------------------------------------------------------------------------------*/
void pcProtocolSendData(uint8_t dataType, uint8_t deviceAddr, uint8_t tempValue, 
						uint8_t batteryValue, uint8_t auxValue, uint8_t rssiValue);
/*================================================================================================
 pcProtocolSendACK
 
 Description: Write a data packet to the usart (command = ACK).

 Input:	-
 Return: -
------------------------------------------------------------------------------------------------*/
void pcProtocolSendACK(void);
/*================================================================================================
 pcProtocolAddByteToBuffer
 
 Description: Add one byte to the input buffer and validate packet when buffer is full. 
 
 Input: data (uint8_t data byte to be added)
 Return: 1 if packet received complete, 0 if not.
------------------------------------------------------------------------------------------------*/
uint8_t pcProtocolAddByteToBuffer(uint8_t data);
/*================================================================================================
 pcProtocolGetData
 
 Description: Return validated incoming data.
 
 Input: *dataBuffer (pointer to buffer storing the data)
 Return: -
------------------------------------------------------------------------------------------------*/
void pcProtocolGetData(uint8_t *dataBuffer);
/*================================================================================================
 pcProtocolClearBuffer
 
 Description: Clear the incoming buffer counter
 
 Input: -
 Return: -
------------------------------------------------------------------------------------------------*/
void pcProtocolClearBuffer(void);
/*================================================================================================
 End
================================================================================================*/
#endif // PC_PROTOCOL_H