Rename architecture specific driver files, to make them appear with uniquely identify...

[pub/lufa.git] / 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 (file)
index b5f258d..0000000
--- 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;
-}