/* MSPDebug - debugging tool for MSP430 MCUs
 * Copyright (C) 2009-2012 Daniel Beer
 * Copyright (C) 2012 Peter Bägel
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef JTDEV_H_
#define JTDEV_H_

struct jtdev {
	int		port;
	uint8_t		data_register;
	uint8_t		control_register;
	int		failed;
};

/* Initialize/destroy a parallel-port JTAG interface. jtdev_open()
 * returns 0 on success or -1 if an error occurs.
 *
 * All other JTAG IO functions indicate errors by setting the failed
 * field in the jtdev structure.
 */
int jtdev_open(struct jtdev *p, const char *device);
void jtdev_close(struct jtdev *p);

/* Connect/release JTAG */
void jtdev_power_on(struct jtdev *p);
void jtdev_power_off(struct jtdev *p);
void jtdev_connect(struct jtdev *p);
void jtdev_release(struct jtdev *p);

/* Low-level IO */
void jtdev_tck(struct jtdev *p, int out);
void jtdev_tms(struct jtdev *p, int out);
void jtdev_tdi(struct jtdev *p, int out);
void jtdev_rst(struct jtdev *p, int out);
void jtdev_tst(struct jtdev *p, int out);
int jtdev_tdo_get(struct jtdev *p);

/* TCLK management */
void jtdev_tclk(struct jtdev *p, int out);
int jtdev_tclk_get(struct jtdev *p);
void jtdev_tclk_strobe(struct jtdev *p, unsigned int count);

/* LED indicators */
void jtdev_led_green(struct jtdev *p, int out);
void jtdev_led_red(struct jtdev *p, int out);

#endif
