-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting \r
- documentation, and that the name of the author not be used in \r
- advertising or publicity pertaining to distribution of the \r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Header file for ISPTarget.c.\r
- */\r
-\r
-#ifndef _ISP_TARGET_\r
-#define _ISP_TARGET_\r
-\r
- /* Includes: */\r
- #include <avr/io.h>\r
- #include <util/delay.h>\r
-\r
- #include <LUFA/Drivers/USB/USB.h>\r
- #include <LUFA/Drivers/Peripheral/SPI.h>\r
- \r
- #include "../V2ProtocolParams.h"\r
-\r
- /* Preprocessor Checks: */\r
- #if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))\r
- #undef ENABLE_ISP_PROTOCOL\r
- \r
- #if !defined(ENABLE_XPROG_PROTOCOL)\r
- #define ENABLE_XPROG_PROTOCOL\r
- #endif\r
- #endif\r
-\r
- /* Macros: */\r
- /** Total number of allowable ISP programming speeds supported by the device */\r
- #define TOTAL_ISP_PROGRAMMING_SPEEDS 7\r
- \r
- #define LOAD_EXTENDED_ADDRESS_CMD 0x4D\r
- \r
- /* Function Prototypes: */\r
- uint8_t ISPTarget_GetSPIPrescalerMask(void);\r
- void ISPTarget_ChangeTargetResetLine(const bool ResetTarget);\r
- uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint16_t PollAddress,\r
- const uint8_t PollValue, const uint8_t DelayMS,\r
- const uint8_t ReadMemCommand);\r
- uint8_t ISPTarget_WaitWhileTargetBusy(void);\r
- void ISPTarget_LoadExtendedAddress(void);\r
-\r
-#endif\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2011.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2011 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
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Header file for ISPTarget.c.
+ */
+
+#ifndef _ISP_TARGET_
+#define _ISP_TARGET_
+
+ /* Includes: */
+ #include <avr/io.h>
+ #include <avr/pgmspace.h>
+ #include <util/delay.h>
+
+ #include <LUFA/Drivers/USB/USB.h>
+ #include <LUFA/Drivers/Peripheral/SPI.h>
+
+ #include "../V2ProtocolParams.h"
+
+ /* Preprocessor Checks: */
+ #if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
+ #undef ENABLE_ISP_PROTOCOL
+
+ #if !defined(ENABLE_XPROG_PROTOCOL)
+ #define ENABLE_XPROG_PROTOCOL
+ #endif
+ #endif
+
+ /* Macros: */
+ /** Low level device command to issue an extended FLASH address, for devices with other 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) / 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_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);
+ void ISPTarget_LoadExtendedAddress(void);
+ uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode,
+ const uint16_t PollAddress,
+ const uint8_t PollValue,
+ const uint8_t DelayMS,
+ const uint8_t ReadMemCommand);
+
+ /* Inline Functions: */
+ /** Sends a byte of ISP data to the attached target, using the appropriate SPI hardware or
+ * software routines depending on the selected ISP speed.
+ *
+ * \param[in] Byte Byte of data to send to the attached target
+ */
+ static inline void ISPTarget_SendByte(const uint8_t Byte)
+ {
+ if (HardwareSPIMode)
+ SPI_SendByte(Byte);
+ else
+ ISPTarget_TransferSoftSPIByte(Byte);
+ }
+
+ /** Receives a byte of ISP data from the attached target, using the appropriate
+ * SPI hardware or software routines depending on the selected ISP speed.
+ *
+ * \return Received byte of data from the attached target
+ */
+ static inline uint8_t ISPTarget_ReceiveByte(void)
+ {
+ if (HardwareSPIMode)
+ return SPI_ReceiveByte();
+ else
+ return ISPTarget_TransferSoftSPIByte(0x00);
+ }
+
+ /** Sends and receives a byte of ISP data to and from the attached target, using the
+ * appropriate SPI hardware or software routines depending on the selected ISP speed.
+ *
+ * \param[in] Byte Byte of data to send to the attached target
+ *
+ * \return Received byte of data from the attached target
+ */
+ static inline uint8_t ISPTarget_TransferByte(const uint8_t Byte)
+ {
+ if (HardwareSPIMode)
+ return SPI_TransferByte(Byte);
+ else
+ return ISPTarget_TransferSoftSPIByte(Byte);
+ }
+
+#endif
+
projects / pub / USBasp.git / blobdiff