/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 *
 * Case Closed Debug common implementation
 */

#include "case_closed_debug.h"

#include "common.h"
#include "usb_api.h"
#include "usb_console.h"

#if !defined(CONFIG_USB)
#error "CONFIG_USB must be defined to use Case Closed Debugging"
#endif

#if !defined(CONFIG_USB_CONSOLE)
#error "CONFIG_USB_CONSOLE must be defined to use Case Closed Debugging"
#endif

#if !defined(CONFIG_USB_INHIBIT_INIT)
#error "CONFIG_USB_INHIBIT_INIT must be defined to use Case Closed Debugging"
#endif

static enum ccd_mode current_mode = CCD_MODE_DISABLED;

void ccd_set_mode(enum ccd_mode new_mode)
{
	if (new_mode == current_mode)
		return;

	if (current_mode != CCD_MODE_DISABLED) {
		usb_release();
		ccd_board_disconnect();
	}

	current_mode = new_mode;

	/*
	 * Only enable forwarding the local console over USB if we are now in
	 * the fully enabled mode.
	 */
	usb_console_enable(new_mode == CCD_MODE_ENABLED);

	if (new_mode != CCD_MODE_DISABLED) {
		ccd_board_connect();
		usb_init();
	}
}