/* * This file is part of Jelie, * (c) 2002 Julien Pilet <julien.pilet@epfl.ch> and * Stephane Magnenat <stephane.magnenat@epfl.ch> * * Jelie is free software; you can redistribute it * and/or modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the License, * or (at your option) any later version. * * Jelie is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Foobar; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA *//*! This is the main JTAG header that has the JTAG interface * and some constants * * \author Julien Pilet <julien.pilet@epfl.ch> * \author Stephane Magnenat <stephane.magnenat@epfl.ch> */#ifndef _JTAG_H_#define _JTAG_H_//! 5 bits JTAG commands for the Intel PXA250.#define JTAG_IRLENGTH 5//! Low level JTAG control interface./*! Gives access to JTAG instruction register (ireg)	and data register (dreg).	With this interface it is possible to have multiple	JTAG physical implementations. */class JTAGControl {public:	//! Initialize the link with the connection device.	/*!	\param argc number of command line argument	 	\param argv array of char* that contains the arguments	 	\return true on success, false on error. */	virtual bool init(int argc, char **argv)=0;	//! Read and write the jtag instruction register.	/*! \param data a pointer to a buffer which will be exchanged with the	 	JTAG instruction register. It always contains only 5 bit so it's one		byte wide.		\return nothing.	*/	virtual void ireg(unsigned char *data)=0;	//! Read and write the jtag data register.	/*! \param data a pointer to a buffer which will be exchanged with the		JTAG data register.		\param length number of bits to read/write. 		\param writeOnly only write, do not read back		\return nothing.	 */	virtual void dreg(unsigned char *data, unsigned char length, bool writeOnly=false)=0;	//! Put the JTAG in run test/idle mode	/*! \return nothing. */	virtual void jtagReset(void)=0;	//! Assert or deassert the cpu reset line.	/*! \param state logical state of the CPU Reset line		\return nothing.	*/	virtual void cpuReset(bool state)=0;	//! Assert or deassert the TRST (JTAG Reset)	/*! \param state logical state of the TRST line	 	\return nothing.	*/	virtual void trst(bool state)=0;	//! Idle for some TCKs in the run test/idle state.	/*! \param nbTCK number of clock cycle (16 bit width integer).	 	\return nothing.	*/	virtual void idle(unsigned int nbTCK)=0;	//! FLush the write only jtag command queue	virtual void flushQueue(void)=0;	//! Return the name of the Jtag Control (like usb, pp)	virtual const char *getName(void) const =0;};#endif // _JTAG_H_