X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/cb779e3d7d32d7c43e0a45bb526de0a04135b0c7..0da99447d3e88e83f9977501bee56af5c7aa56c0:/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h?ds=inline

diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h
index e6ee42d4e..4c0ea8245 100644
--- a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h
+++ b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2012.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
@@ -44,8 +44,10 @@
 		#include <LUFA/Drivers/USB/USB.h>
 		#include <LUFA/Drivers/Peripheral/SPI.h>
 
-		#include "../V2ProtocolParams.h"
-
+		#include "../V2Protocol.h"
+		#include "ISPProtocol.h"
+		#include "Config/AppConfig.h"
+		
 	/* Preprocessor Checks: */
 		#if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
 			#undef ENABLE_ISP_PROTOCOL
@@ -56,18 +58,23 @@
 		#endif
 
 	/* Macros: */
-		/** Low level device command to issue an extended FLASH address, for devices with other 128KB of FLASH. */
+		/** Low level device command to issue an extended FLASH address, for devices with over 128KB of FLASH. */
 		#define LOAD_EXTENDED_ADDRESS_CMD     0x4D
 
-		/** Macro to convert an ISP frequency to a number of timer clock cycles for the software SPI driver */
-		#define TIMER_COMP(freq) ((((F_CPU / 8) / freq) / 2) - 1)
+		/** Macro to convert an ISP frequency to a number of timer clock cycles for the software SPI driver. */
+		#define TIMER_COMP(freq)              (((F_CPU / 8) / 2 / freq) - 1)
+
+		/** ISP rescue clock speed in Hz, for clocking targets with incorrectly set fuses. */
+		#define ISP_RESCUE_CLOCK_SPEED        4000000
 
 	/* External Variables: */
 		extern bool HardwareSPIMode;
 
 	/* Function Prototypes: */
-		void    ISPTarget_Init(void);
-		void    ISPTarget_ShutDown(void);
+		void    ISPTarget_EnableTargetISP(void);
+		void    ISPTarget_DisableTargetISP(void);
+		void    ISPTarget_ConfigureRescueClock(void);
+		void    ISPTarget_ConfigureSoftwareSPI(const uint8_t SCKDuration);
 		uint8_t ISPTarget_TransferSoftSPIByte(const uint8_t Byte);
 		void    ISPTarget_ChangeTargetResetLine(const bool ResetTarget);
 		uint8_t ISPTarget_WaitWhileTargetBusy(void);
@@ -99,10 +106,17 @@
 		 */
 		static inline uint8_t ISPTarget_ReceiveByte(void)
 		{
+			#if !defined(INVERTED_ISP_MISO)
 			if (HardwareSPIMode)
 			  return SPI_ReceiveByte();
 			else
 			  return ISPTarget_TransferSoftSPIByte(0x00);
+			#else
+			if (HardwareSPIMode)
+			  return ~SPI_ReceiveByte();
+			else
+			  return ~ISPTarget_TransferSoftSPIByte(0x00);
+			#endif
 		}
 
 		/** Sends and receives a byte of ISP data to and from the attached target, using the
@@ -114,10 +128,17 @@
 		 */
 		static inline uint8_t ISPTarget_TransferByte(const uint8_t Byte)
 		{
+			#if !defined(INVERTED_ISP_MISO)
 			if (HardwareSPIMode)
 			  return SPI_TransferByte(Byte);
 			else
 			  return ISPTarget_TransferSoftSPIByte(Byte);
+			#else
+			if (HardwareSPIMode)
+			  return ~SPI_TransferByte(Byte);
+			else
+			  return ~ISPTarget_TransferSoftSPIByte(Byte);
+			#endif
 		}
 
 #endif