X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/cad5e9ffca70f4f5d3b486049088fd77dfa8f0ca..b6a3c78fa3e46fea1dd6f4b93352686837983dfd:/LUFA/Drivers/Peripheral/AVR8/TWI.c

diff --git a/LUFA/Drivers/Peripheral/AVR8/TWI.c b/LUFA/Drivers/Peripheral/AVR8/TWI.c
deleted file mode 100644
index b5f258dd3..000000000
--- a/LUFA/Drivers/Peripheral/AVR8/TWI.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
-     Copyright (C) Dean Camera, 2011.
-
-  dean [at] fourwalledcubicle [dot] com
-           www.lufa-lib.org
-*/
-
-#define  __INCLUDE_FROM_TWI_C
-#include "TWI.h"
-
-uint8_t TWI_StartTransmission(const uint8_t SlaveAddress,
-                              const uint8_t TimeoutMS)
-{
-	for (;;)
-	{
-		bool     BusCaptured = false;
-		uint16_t TimeoutRemaining;
-
-		TWCR = ((1 << TWINT) | (1 << TWSTA) | (1 << TWEN));
-
-		TimeoutRemaining = (TimeoutMS * 100);
-		while (TimeoutRemaining-- && !(BusCaptured))
-		{
-			if (TWCR & (1 << TWINT))
-			{
-				switch (TWSR & TW_STATUS_MASK)
-				{
-					case TW_START:
-					case TW_REP_START:
-						BusCaptured = true;
-						break;
-					case TW_MT_ARB_LOST:
-						TWCR = ((1 << TWINT) | (1 << TWSTA) | (1 << TWEN));
-						continue;
-					default:
-						TWCR = (1 << TWEN);
-						return TWI_ERROR_BusFault;
-				}
-			}
-
-			_delay_us(10);
-		}
-
-		if (!(TimeoutRemaining))
-		{
-			TWCR = (1 << TWEN);
-			return TWI_ERROR_BusCaptureTimeout;
-		}
-
-		TWDR = SlaveAddress;
-		TWCR = ((1 << TWINT) | (1 << TWEN));
-
-		TimeoutRemaining = (TimeoutMS * 100);
-		while (TimeoutRemaining--)
-		{
-			if (TWCR & (1 << TWINT))
-			  break;
-
-			_delay_us(10);
-		}
-
-		if (!(TimeoutRemaining))
-		  return TWI_ERROR_SlaveResponseTimeout;
-
-		switch (TWSR & TW_STATUS_MASK)
-		{
-			case TW_MT_SLA_ACK:
-			case TW_MR_SLA_ACK:
-				return TWI_ERROR_NoError;
-			default:
-				TWCR = ((1 << TWINT) | (1 << TWSTO) | (1 << TWEN));
-				return TWI_ERROR_SlaveNotReady;
-		}
-	}
-}
-
-uint8_t TWI_ReadPacket(const uint8_t SlaveAddress,
-                       const uint8_t TimeoutMS,
-                       const uint8_t* InternalAddress,
-                       uint8_t InternalAddressLen,
-                       uint8_t* Buffer,
-                       uint8_t Length)
-{
-	uint8_t ErrorCode;
-	
-	if ((ErrorCode = TWI_WritePacket(SlaveAddress, TimeoutMS, InternalAddress, InternalAddressLen,
-	                                 NULL, 0)) != TWI_ERROR_NoError)
-	{
-		return ErrorCode;
-	}
-
-	if ((ErrorCode = TWI_StartTransmission((SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_READ,
-										   TimeoutMS)) == TWI_ERROR_NoError)
-	{
-		while (Length--)
-		{
-			if (!(TWI_ReceiveByte(Buffer++, (Length == 0))))
-			{
-				ErrorCode = TWI_ERROR_SlaveNAK;
-				break;
-			}
-		}
-		
-		TWI_StopTransmission();
-	}
-	
-	return ErrorCode;
-}
-
-uint8_t TWI_WritePacket(const uint8_t SlaveAddress,
-                        const uint8_t TimeoutMS,
-                        const uint8_t* InternalAddress,
-                        uint8_t InternalAddressLen,
-                        const uint8_t* Buffer,
-                        uint8_t Length)
-{
-	uint8_t ErrorCode;
-
-	if ((ErrorCode = TWI_StartTransmission((SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_WRITE,
-	                                       TimeoutMS)) == TWI_ERROR_NoError)
-	{
-		while (InternalAddressLen--)
-		{
-			if (!(TWI_SendByte(*(InternalAddress++))))
-			{
-				ErrorCode = TWI_ERROR_SlaveNAK;
-				break;
-			}
-		}
-
-		while (Length--)
-		{
-			if (!(TWI_SendByte(*(Buffer++))))
-			{
-				ErrorCode = TWI_ERROR_SlaveNAK;
-				break;
-			}
-		}
-		
-		TWI_StopTransmission();
-	}
-	
-	return ErrorCode;
-}