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/*
             LUFA Library
     Copyright (C) Dean Camera, 2010.

  dean [at] fourwalledcubicle [dot] com
           www.lufa-lib.org
*/

/*
  Copyright 2010  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 XPROGTarget.c.
 */

#ifndef _XPROG_TARGET_
#define _XPROG_TARGET_

	/* Includes: */
		#include <avr/io.h>
		#include <avr/interrupt.h>
		#include <stdbool.h>

		#include <LUFA/Common/Common.h>

		#include "../V2Protocol.h"
		#include "XPROGProtocol.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

		/** Serial carrier TPI/PDI speed when hardware TPI/PDI mode is used. */
		#define XPROG_HARDWARE_SPEED       250000

		/** Total number of bits in a single USART frame. */
		#define BITS_IN_USART_FRAME        12

		#define PDI_CMD_LDS                0x00
		#define PDI_CMD_LD                 0x20
		#define PDI_CMD_STS                0x40
		#define PDI_CMD_ST                 0x60
		#define PDI_CMD_LDCS               0x80
		#define PDI_CMD_REPEAT             0xA0
		#define PDI_CMD_STCS               0xC0
		#define PDI_CMD_KEY                0xE0

		#define PDI_STATUS_REG             0
		#define PDI_RESET_REG              1
		#define PDI_CTRL_REG               2

		#define PDI_STATUS_NVM             (1 << 1)

		#define PDI_RESET_KEY              0x59
		#define PDI_NVMENABLE_KEY          (uint8_t[]){0x12, 0x89, 0xAB, 0x45, 0xCD, 0xD8, 0x88, 0xFF}

		#define PDI_DATSIZE_1BYTE          0
		#define PDI_DATSIZE_2BYTES         1
		#define PDI_DATSIZE_3BYTES         2
		#define PDI_DATSIZE_4BYTES         3

		#define PDI_POINTER_INDIRECT       0
		#define PDI_POINTER_INDIRECT_PI    1
		#define PDI_POINTER_DIRECT         2

		#define TPI_CMD_SLD                0x20
		#define TPI_CMD_SST                0x60
		#define TPI_CMD_SSTPR              0x68
		#define TPI_CMD_SIN                0x10
		#define TPI_CMD_SOUT               0x90
		#define TPI_CMD_SLDCS              0x80
		#define TPI_CMD_SSTCS              0xC0
		#define TPI_CMD_SKEY               0xE0

		#define TPI_STATUS_REG             0x00
		#define TPI_CTRL_REG               0x02
		#define TPI_ID_REG                 0x0F

		#define TPI_STATUS_NVM             (1 << 1)

		#define TPI_NVMENABLE_KEY          (uint8_t[]){0x12, 0x89, 0xAB, 0x45, 0xCD, 0xD8, 0x88, 0xFF}

		#define TPI_POINTER_INDIRECT       0
		#define TPI_POINTER_INDIRECT_PI    4

	/* Function Prototypes: */
		void    XPROGTarget_EnableTargetPDI(void);
		void    XPROGTarget_EnableTargetTPI(void);
		void    XPROGTarget_DisableTargetPDI(void);
		void    XPROGTarget_DisableTargetTPI(void);
		void    XPROGTarget_SendByte(const uint8_t Byte);
		uint8_t XPROGTarget_ReceiveByte(void);
		void    XPROGTarget_SendBreak(void);
		bool    XPROGTarget_WaitWhileNVMBusBusy(void);

		#if (defined(INCLUDE_FROM_XPROGTARGET_C) && defined(ENABLE_XPROG_PROTOCOL))
			static void XPROGTarget_SetTxMode(void);
			static void XPROGTarget_SetRxMode(void);
		#endif

#endif