Added V2Protocol handlers to the AVRISP project to enter/exit programming mode, and read/write fuses, lockbits, OSCCAL and Signature bytes.

Added ShutDown functions for all hardware peripheral drivers, so that peripherals can be turned off after use.

LUFA/Drivers/Peripheral/AT90USBXXX67/ADC.h

@@ -122,7 +122,7 @@
 				/** Turns off the ADC. If this is called, any further ADC operations will require a call to
 				 *  \ref ADC_Init() before the ADC can be used again.
 				 */
-				static inline void ADC_Off(void);
+				static inline void ADC_ShutDown(void);
 				
 				/** Indicates if the ADC is currently enabled.
 				 *
@@ -145,7 +145,7 @@
 			#else
 				#define  ADC_Init(mode)          MACROS{ ADCSRA = ((1 << ADEN) | mode);         }MACROE
 
-				#define  ADC_Off()               MACROS{ ADCSRA = 0;                            }MACROE
+				#define  ADC_ShutDown()          MACROS{ ADCSRA = 0;                            }MACROE
 				
 				#define  ADC_GetStatus()               ((ADCSRA & (1 << ADEN)) ? true : false)
 

LUFA/Drivers/Peripheral/SPI.h

@@ -108,6 +108,16 @@
 				  SPSR &= ~(1 << SPI2X);
 			}
 			
+			/** Turns off the SPI driver, disabling and returning used hardware to their default configuration. */
+			static inline void SPI_ShutDown(void)
+			{
+				DDRB  &= ~((1 << 1) | (1 << 2));
+				PORTB &= ~((1 << 0) | (1 << 3));
+				
+				SPCR   = 0;
+				SPSR   = 0;
+			}
+			
 			/** Sends and receives a byte through the SPI interface, blocking until the transfer is complete.
 			 *
 			 *  \param[in] Byte  Byte to send through the SPI interface

LUFA/Drivers/Peripheral/Serial.h

@@ -118,6 +118,19 @@
 				UBRR1  = (DoubleSpeed ? SERIAL_2X_UBBRVAL(BaudRate) : SERIAL_UBBRVAL(BaudRate));
 			}
 
+			/** Turns off the USART driver, disabling and returning used hardware to their default configuration. */
+			static inline void Serial_ShutDown(void)
+			{
+				UCSR1A = 0;
+				UCSR1B = 0;
+				UCSR1C = 0;
+				
+				DDRD  &= ~(1 << 3);	
+				PORTD &= ~(1 << 2);
+				
+				UBRR1  = 0;
+			}
+			
 			/** Transmits a given byte through the USART.
 			 *
 			 *  \param[in] DataByte  Byte to transmit through the USART

LUFA/Drivers/Peripheral/SerialStream.h

@@ -89,6 +89,14 @@
 				stdout = &USARTStream;
 			}
 			
+			/** Turns off the serial stream (and regular USART driver), disabling and returning used hardware to
+			 *  their default configuration.
+			 */
+			static inline void SerialStream_ShutDown(void)
+			{
+				Serial_ShutDown();
+			}			
+
 	/* Disable C linkage for C++ Compilers: */
 		#if defined(__cplusplus)
 			}

LUFA/ManPages/ChangeLog.txt

@@ -15,6 +15,7 @@
   *    USB_Device_DisableSOFEvents() macros to give bus-synchronised millisecond interrupts when in USB device mode
   *  - Added new Endpoint_SetEndpointDirection() macro for bi-directional endpoints
   *  - Added new AVRISP project, a LUFA clone of the Atmel AVRISP-MKII programmer
+  *  - Added ShutDown functions for all hardware peripheral drivers, so that peripherals can be turned off after use
   *  
   *  <b>Changed:</b>
   *  - SetIdle requests to the HID device driver with a 0 idle period (send changes only) now only affect the requested

LUFA/ManPages/MigrationInformation.txt

@@ -11,7 +11,9 @@
  *  areas relevant to making older projects compatible with the API changes of each new release.
  *
  * \section Sec_MigrationXXXXXX Migrating from 090810 to XXXXXX
- * No migration information for this version yet.
+ *
+ *  <b>Non-USB Library Components</b>
+ *    - The ADC_Off() function has been renamed to \ref ADC_ShutDown() to be consistent with the rest of the library.
  *
  * \section Sec_Migration090810 Migrating from 090605 to 090810
  *

Projects/Incomplete/AVRISP/AVRISP.c

@@ -69,7 +69,6 @@ void SetupHardware(void)
 
 	/* Hardware Initialization */
 	SerialStream_Init(9600, false);
-	SPI_Init(0, true);
 	LEDs_Init();
 	USB_Init();
 }

Projects/Incomplete/AVRISP/Lib/V2Protocol.c

@@ -40,7 +40,7 @@ uint32_t CurrentAddress;
 
 
 /* Table of masks for SPI_Init() from a given PARAM_SCK_DURATION value */
-static const uint8_t SPIMaskFromSCKDuration[MAX_SPI_SETTINGS] =
+static const uint8_t SPIMaskFromSCKDuration[] =
 	{
 		#if (F_CPU == 8000000)
 		SPI_SPEED_FCPU_DIV_2,
@@ -52,14 +52,14 @@ static const uint8_t SPIMaskFromSCKDuration[MAX_SPI_SETTINGS] =
 		#endif
 	};
 
-static void V2Protocol_ReconfigureSPI(void)
+static uint8_t V2Protocol_GetSPIPrescalerMask(void)
 {
 	uint8_t SCKDuration = V2Params_GetParameterValue(PARAM_SCK_DURATION);
 
-	if (SCKDuration >= MAX_SPI_SETTINGS)
+	if (SCKDuration >= sizeof(SPIMaskFromSCKDuration))
-	  SCKDuration = (MAX_SPI_SETTINGS - 1);
+	  SCKDuration = (sizeof(SPIMaskFromSCKDuration) - 1);
 	  
-	SPI_Init(SPIMaskFromSCKDuration[SCKDuration], true);	
+	return SPIMaskFromSCKDuration[SCKDuration];
 }
 
 static void V2Protocol_ChangeTargetResetLine(bool ResetTarget)
@@ -78,6 +78,35 @@ static void V2Protocol_ChangeTargetResetLine(bool ResetTarget)
 	}
 }
 
+static void V2Protocol_DelayMS(uint8_t MS)
+{
+	while (MS--)
+	  _delay_ms(1);
+}
+
+static uint8_t V2Protocol_WaitWhileTargetBusy(void)
+{
+	uint8_t TimeoutMS = TARGET_BUST_TIMEOUT_MS;
+	uint8_t ResponseByte;
+	
+	do
+	{
+		V2Protocol_DelayMS(1);
+	
+		SPI_SendByte(0xF0);
+		SPI_SendByte(0x00);
+
+		SPI_SendByte(0x00);
+		ResponseByte = SPI_ReceiveByte();
+	}
+	while ((ResponseByte & 0x01) && (TimeoutMS--));
+
+	if (!(TimeoutMS))
+	  return STATUS_CMD_TOUT;
+	else
+	  return STATUS_CMD_OK;
+}
+
 void V2Protocol_ProcessCommand(void)
 {
 	uint8_t V2Command = Endpoint_Read_Byte();
@@ -94,6 +123,25 @@ void V2Protocol_ProcessCommand(void)
 		case CMD_LOAD_ADDRESS:
 			V2Protocol_Command_LoadAddress();
 			break;
+		case CMD_ENTER_PROGMODE_ISP:
+			V2Protocol_Command_EnterISPMode();
+			break;
+		case CMD_LEAVE_PROGMODE_ISP:
+			V2Protocol_Command_LeaveISPMode();
+			break;
+		case CMD_CHIP_ERASE_ISP:
+			V2Protocol_Command_ChipErase();
+			break;
+		case CMD_READ_FUSE_ISP:
+		case CMD_READ_LOCK_ISP:
+		case CMD_READ_SIGNATURE_ISP:
+		case CMD_READ_OSCCAL_ISP:
+			V2Protocol_Command_ReadFuseLockSigOSCCAL(V2Command);
+			break;
+		case CMD_PROGRAM_FUSE_ISP:
+		case CMD_PROGRAM_LOCK_ISP:
+			V2Protocol_Command_WriteFuseLock(V2Command);
+			break;
 		case CMD_SPI_MULTI:
 			V2Protocol_Command_SPIMulti();
 			break;
@@ -132,38 +180,40 @@ static void V2Protocol_Command_SignOn(void)
 	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
 	Endpoint_WaitUntilReady();
 
-	V2Protocol_ReconfigureSPI();
-	CurrentAddress = 0;
-
 	Endpoint_Write_Byte(CMD_SIGN_ON);
 	Endpoint_Write_Byte(STATUS_CMD_OK);
-	Endpoint_Write_Byte(PROGRAMMER_ID_LEN);
+	Endpoint_Write_Byte(sizeof(PROGRAMMER_ID) - 1);
-	Endpoint_Write_Stream_LE(PROGRAMMER_ID, PROGRAMMER_ID_LEN);
+	Endpoint_Write_Stream_LE(PROGRAMMER_ID, (sizeof(PROGRAMMER_ID) - 1));
 	Endpoint_ClearIN();
 }
 
 static void V2Protocol_Command_GetSetParam(uint8_t V2Command)
 {
-	uint8_t ParamID    = Endpoint_Read_Byte();
+	struct
-	uint8_t ParamValue = Endpoint_Read_Byte();
+	{
+		uint8_t ParamID;
+		uint8_t ParamValue;
+	} Get_Set_Param_Params;
+	
+	Endpoint_Read_Stream_LE(&Get_Set_Param_Params, sizeof(Get_Set_Param_Params));
 
 	Endpoint_ClearOUT();
 	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
 	Endpoint_WaitUntilReady();
 	
-	uint8_t ParamPrivs = V2Params_GetParameterPrivellages(ParamID);
+	uint8_t ParamPrivs = V2Params_GetParameterPrivellages(Get_Set_Param_Params.ParamID);
 	
 	Endpoint_Write_Byte(V2Command);
 	
 	if ((V2Command == CMD_SET_PARAMETER) && (ParamPrivs & PARAM_PRIV_WRITE))
 	{
 		Endpoint_Write_Byte(STATUS_CMD_OK);
-		V2Params_SetParameterValue(ParamID, ParamValue);
+		V2Params_SetParameterValue(Get_Set_Param_Params.ParamID, Get_Set_Param_Params.ParamValue);
 	}
 	else if ((V2Command == CMD_GET_PARAMETER) && (ParamPrivs & PARAM_PRIV_READ))
 	{
 		Endpoint_Write_Byte(STATUS_CMD_OK);
-		Endpoint_Write_Byte(V2Params_GetParameterValue(ParamID));
+		Endpoint_Write_Byte(V2Params_GetParameterValue(Get_Set_Param_Params.ParamID));
 	}
 	else
 	{	
@@ -175,25 +225,194 @@ static void V2Protocol_Command_GetSetParam(uint8_t V2Command)
 
 static void V2Protocol_Command_LoadAddress(void)
 {
-	CurrentAddress = Endpoint_Read_DWord_LE();
+	Endpoint_Read_Stream_LE(&CurrentAddress, sizeof(CurrentAddress));
 
 	Endpoint_ClearOUT();
 	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
 	Endpoint_WaitUntilReady();
 	
+	// TODO: Check for extended address
+
 	Endpoint_Write_Byte(CMD_LOAD_ADDRESS);
 	Endpoint_Write_Byte(STATUS_CMD_OK);
 	Endpoint_ClearIN();
 }
 
+static void V2Protocol_Command_EnterISPMode(void)
+{
+	struct
+	{
+		uint8_t TimeoutMS;
+		uint8_t PinStabDelayMS;
+		uint8_t ExecutionDelayMS;
+		uint8_t SynchLoops;
+		uint8_t ByteDelay;
+		uint8_t PollValue;
+		uint8_t PollIndex;
+		uint8_t EnterProgBytes[4];
+	} Enter_ISP_Params;
+	
+	Endpoint_Read_Stream_LE(&Enter_ISP_Params, sizeof(Enter_ISP_Params));
+
+	Endpoint_ClearOUT();
+	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
+	Endpoint_WaitUntilReady();
+
+	uint8_t SCKDuration = V2Params_GetParameterValue(PARAM_SCK_DURATION);
+	uint8_t ResponseStatus = STATUS_CMD_FAILED;
+
+	Enter_ISP_Params.TimeoutMS -= Enter_ISP_Params.ExecutionDelayMS +
+	                              Enter_ISP_Params.PinStabDelayMS;
+	
+	CurrentAddress = 0;
+
+	if (SCKDuration >= sizeof(SPIMaskFromSCKDuration))
+	  SCKDuration = (sizeof(SPIMaskFromSCKDuration) - 1);
+
+	V2Protocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS);	  
+	SPI_Init(SPIMaskFromSCKDuration[SCKDuration], true);
+	V2Protocol_ChangeTargetResetLine(true);
+	V2Protocol_DelayMS(Enter_ISP_Params.PinStabDelayMS);
+		
+	while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus == STATUS_CMD_FAILED))
+	{
+		uint8_t ResponseBytes[4];
+		
+		for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++)
+		{
+			ResponseBytes[RByte] = SPI_TransferByte(Enter_ISP_Params.EnterProgBytes[RByte]);
+			V2Protocol_DelayMS(Enter_ISP_Params.ByteDelay);
+			
+			if (Enter_ISP_Params.TimeoutMS >= Enter_ISP_Params.ByteDelay)
+			  Enter_ISP_Params.TimeoutMS -= Enter_ISP_Params.ByteDelay;
+			else
+			  ResponseStatus = STATUS_CMD_TOUT;
+		}
+		
+		if (ResponseBytes[Enter_ISP_Params.PollIndex] == Enter_ISP_Params.PollValue)
+		  ResponseStatus = STATUS_CMD_OK;
+	}
+
+	Endpoint_Write_Byte(CMD_ENTER_PROGMODE_ISP);
+	Endpoint_Write_Byte(ResponseStatus);
+	Endpoint_ClearIN();
+}
+
+static void V2Protocol_Command_LeaveISPMode(void)
+{
+	struct
+	{
+		uint8_t PreDelayMS;
+		uint8_t PostDelayMS;
+	} Leave_ISP_Params;
+
+	Endpoint_Read_Stream_LE(&Leave_ISP_Params, sizeof(Leave_ISP_Params));
+	
+	Endpoint_ClearOUT();
+	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
+	Endpoint_WaitUntilReady();
+
+	V2Protocol_DelayMS(Leave_ISP_Params.PreDelayMS);
+	V2Protocol_ChangeTargetResetLine(false);
+	SPI_ShutDown();
+	V2Protocol_DelayMS(Leave_ISP_Params.PostDelayMS);
+
+	Endpoint_Write_Byte(CMD_LEAVE_PROGMODE_ISP);
+	Endpoint_Write_Byte(STATUS_CMD_OK);
+	Endpoint_ClearIN();
+}
+
+static void V2Protocol_Command_ChipErase(void)
+{
+	struct
+	{
+		uint8_t EraseDelayMS;
+		uint8_t PollMethod;
+		uint8_t EraseCommandBytes[4];
+	} Erase_Chip_Params;
+	
+	Endpoint_Read_Stream_LE(&Erase_Chip_Params, sizeof(Erase_Chip_Params));
+	
+	Endpoint_ClearOUT();
+	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
+	Endpoint_WaitUntilReady();
+	
+	uint8_t ResponseStatus = STATUS_CMD_OK;
+	
+	for (uint8_t SByte = 0; SByte < sizeof(Erase_Chip_Params.EraseCommandBytes); SByte++)
+	  SPI_SendByte(Erase_Chip_Params.EraseCommandBytes[SByte]);
+
+	if (Erase_Chip_Params.PollMethod == 0)
+	  V2Protocol_DelayMS(Erase_Chip_Params.EraseDelayMS);
+	else
+	  ResponseStatus = V2Protocol_WaitWhileTargetBusy();
+	  
+	Endpoint_Write_Byte(CMD_CHIP_ERASE_ISP);
+	Endpoint_Write_Byte(ResponseStatus);
+	Endpoint_ClearIN();
+}
+
+static void V2Protocol_Command_ReadFuseLockSigOSCCAL(uint8_t V2Command)
+{
+	struct
+	{
+		uint8_t RetByte;
+		uint8_t ReadCommandBytes[4];
+	} Read_FuseLockSigOSCCAL_Params;
+	
+	Endpoint_Read_Stream_LE(&Read_FuseLockSigOSCCAL_Params, sizeof(Read_FuseLockSigOSCCAL_Params));
+
+	Endpoint_ClearOUT();
+	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
+	Endpoint_WaitUntilReady();
+
+	uint8_t ResponseBytes[4];
+		
+	for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++)
+	  ResponseBytes[RByte] = SPI_TransferByte(Read_FuseLockSigOSCCAL_Params.ReadCommandBytes[RByte]);
+		
+	Endpoint_Write_Byte(V2Command);
+	Endpoint_Write_Byte(STATUS_CMD_OK);
+	Endpoint_Write_Byte(ResponseBytes[Read_FuseLockSigOSCCAL_Params.RetByte]);
+	Endpoint_Write_Byte(STATUS_CMD_OK);
+	Endpoint_ClearIN();
+}
+
+static void V2Protocol_Command_WriteFuseLock(uint8_t V2Command)
+{
+	struct
+	{
+		uint8_t WriteCommandBytes[4];
+	} Write_FuseLockSig_Params;
+	
+	Endpoint_Read_Stream_LE(&Write_FuseLockSig_Params, sizeof(Write_FuseLockSig_Params));
+
+	Endpoint_ClearOUT();
+	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
+	Endpoint_WaitUntilReady();
+
+	for (uint8_t SByte = 0; SByte < sizeof(Write_FuseLockSig_Params.WriteCommandBytes); SByte++)
+	  SPI_SendByte(Write_FuseLockSig_Params.WriteCommandBytes[SByte]);
+		
+	Endpoint_Write_Byte(V2Command);
+	Endpoint_Write_Byte(STATUS_CMD_OK);
+	Endpoint_Write_Byte(STATUS_CMD_OK);
+	Endpoint_ClearIN();
+}
+
 static void V2Protocol_Command_SPIMulti(void)
 {
-	uint8_t TxBytes     = Endpoint_Read_Byte();
+	struct
-	uint8_t RxBytes     = Endpoint_Read_Byte();
+	{
-	uint8_t RxStartAddr = Endpoint_Read_Byte();
+		uint8_t TxBytes;
+		uint8_t RxBytes;
+		uint8_t RxStartAddr;
 		uint8_t TxData[255];
+	} SPI_Multi_Params;
 	
-	Endpoint_Read_Stream_LE(TxData, TxBytes);
+	Endpoint_Read_Stream_LE(&SPI_Multi_Params, sizeof(SPI_Multi_Params) -
+	                                           sizeof(SPI_Multi_Params.TxData));
+	Endpoint_Read_Stream_LE(&SPI_Multi_Params.TxData, SPI_Multi_Params.TxBytes);
 	
 	Endpoint_ClearOUT();
 	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
@@ -206,10 +425,10 @@ static void V2Protocol_Command_SPIMulti(void)
 	uint8_t CurrRxPos = 0;
 
 	/* Write out bytes to transmit until the start of the bytes to receive is met */
-	while (CurrTxPos < RxStartAddr)
+	while (CurrTxPos < SPI_Multi_Params.RxStartAddr)
 	{
-		if (CurrTxPos < TxBytes)
+		if (CurrTxPos < SPI_Multi_Params.TxBytes)
-		  SPI_SendByte(TxData[CurrTxPos]);
+		  SPI_SendByte(SPI_Multi_Params.TxData[CurrTxPos]);
 		else
 		  SPI_SendByte(0);
 		
@@ -217,10 +436,10 @@ static void V2Protocol_Command_SPIMulti(void)
 	}
 
 	/* Transmit remaining bytes with padding as needed, read in response bytes */
-	while (CurrRxPos < RxBytes)
+	while (CurrRxPos < SPI_Multi_Params.RxBytes)
 	{
-		if (CurrTxPos < TxBytes)
+		if (CurrTxPos < SPI_Multi_Params.TxBytes)
-		  Endpoint_Write_Byte(SPI_TransferByte(TxData[CurrTxPos++]));
+		  Endpoint_Write_Byte(SPI_TransferByte(SPI_Multi_Params.TxData[CurrTxPos++]));
 		else
 		  Endpoint_Write_Byte(SPI_ReceiveByte());
 		

Projects/Incomplete/AVRISP/Lib/V2Protocol.h

@@ -38,6 +38,7 @@
 
 	/* Includes: */
 		#include <avr/io.h>
+		#include <util/delay.h>
 
 		#include <LUFA/Drivers/USB/USB.h>
 		#include <LUFA/Drivers/Peripheral/SPI.h>
@@ -48,21 +49,26 @@
 
 	/* Macros: */
 		#define PROGRAMMER_ID             "AVRISP_MK2"
-		#define PROGRAMMER_ID_LEN   (sizeof(PROGRAMMER_ID) - 1)
+		#define TARGET_BUST_TIMEOUT_MS    100
-
-		#define MAX_SPI_SETTINGS    7
 
 	/* Function Prototypes: */
 		void V2Protocol_ProcessCommand(void);
 		
 		#if defined(INCLUDE_FROM_V2PROTOCOL_C)
-			static void    V2Protocol_ReconfigureSPI(void);
+			static uint8_t V2Protocol_GetSPIPrescalerMask(void);
 			static void    V2Protocol_ChangeTargetResetLine(bool ResetTarget);
+			static void    V2Protocol_DelayMS(uint8_t MS);
+			static uint8_t V2Protocol_WaitWhileTargetBusy(void);
 
 			static void V2Protocol_Command_Unknown(uint8_t V2Command);
 			static void V2Protocol_Command_SignOn(void);
 			static void V2Protocol_Command_GetSetParam(uint8_t V2Command);
 			static void V2Protocol_Command_LoadAddress(void);
+			static void V2Protocol_Command_EnterISPMode(void);
+			static void V2Protocol_Command_LeaveISPMode(void);
+			static void V2Protocol_Command_ChipErase(void);
+			static void V2Protocol_Command_ReadFuseLockSigOSCCAL(uint8_t V2Command);
+			static void V2Protocol_Command_WriteFuseLock(uint8_t V2Command);
 			static void V2Protocol_Command_SPIMulti(void);
 		#endif
 

Projects/Incomplete/AVRISP/Lib/V2ProtocolParams.c

@@ -67,7 +67,7 @@ static ParameterItem_t ParameterTable[] =
 		  .ParamPrivellages = PARAM_PRIV_READ                    },
 
 		{ .ParamID          = PARAM_SCK_DURATION,
-		  .ParamValue       = MAX_SPI_SETTINGS,
+		  .ParamValue       = 0,
 		  .ParamPrivellages = PARAM_PRIV_READ | PARAM_PRIV_WRITE },
 
 		{ .ParamID          = PARAM_RESET_POLARITY,