openocd/src/jtag/minidummy/minidummy.c

/***************************************************************************
 *   Copyright (C) 2007-2008 by Øyvind Harboe                              *
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 *   This program 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 this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "embeddedice.h"
#include "minidriver.h"
#include "interface.h"




jtag_interface_t minidummy_interface =
{
	.name = "minidummy",
	.execute_queue = NULL,
	.speed = NULL,
	.register_commands = NULL,
	.init = NULL,
	.quit = NULL,
	.khz = NULL,
	.speed_div = NULL,
	.power_dropout = NULL,
	.srst_asserted = NULL,
};






int interface_jtag_execute_queue(void)
{
	/* synchronously do the operation here */

	return ERROR_OK;
}





extern int jtag_check_value(uint8_t *captured, void *priv);

int interface_jtag_add_ir_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
{
	/* synchronously do the operation here */

	return ERROR_OK;

}





int interface_jtag_add_plain_ir_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
{
	/* synchronously do the operation here */

	return ERROR_OK;
}

/*extern jtag_command_t **jtag_get_last_command_p(void);*/

int interface_jtag_add_dr_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
{
	/* synchronously do the operation here */

	return ERROR_OK;
}

int interface_jtag_add_plain_dr_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
{
	/* synchronously do the operation here */

	return ERROR_OK;
}


int interface_jtag_add_tlr()
{
	/* synchronously do the operation here */

	return ERROR_OK;
}



int interface_jtag_add_reset(int req_trst, int req_srst)
{
	/* synchronously do the operation here */

	return ERROR_OK;
}


int interface_jtag_add_runtest(int num_cycles, tap_state_t state)
{
	/* synchronously do the operation here */

	return ERROR_OK;
}

int interface_jtag_add_clocks(int num_cycles)
{
	/* synchronously do the operation here */

	return ERROR_OK;
}

int interface_jtag_add_sleep(uint32_t us)
{
	jtag_sleep(us);
	return ERROR_OK;
}

int interface_jtag_add_pathmove(int num_states, const tap_state_t *path)
{
	int state_count;
	int tms = 0;

	state_count = 0;

	tap_state_t cur_state = cmd_queue_cur_state;

	while (num_states)
	{
		if (tap_state_transition(cur_state, false) == path[state_count])
		{
			tms = 0;
		}
		else if (tap_state_transition(cur_state, true) == path[state_count])
		{
			tms = 1;
		}
		else
		{
			LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[state_count]));
			exit(-1);
		}

		/* synchronously do the operation here */

		cur_state = path[state_count];
		state_count++;
		num_states--;
	}


	/* synchronously do the operation here */

	return ERROR_OK;
}



void embeddedice_write_dcc(jtag_tap_t *tap, int reg_addr, uint8_t *buffer, int little, int count)
{
	int i;
	for (i = 0; i < count; i++)
	{
		embeddedice_write_reg_inner(tap, reg_addr, fast_target_buffer_get_u32(buffer, little));
		buffer += 4;
	}
}