/*
 * Copyright (c) 2011 Jan Vesely
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/** @addtogroup drvkbd
 * @{
 */
/** @file
 * @brief XT keyboard driver;
 */

#include <errno.h>
#include <devman.h>
#include <device/char_dev.h>
#include <ddf/log.h>

#include "xtkbd.h"

static int polling(void *);

int xt_kbd_init(xt_kbd_t *kbd, ddf_dev_t *dev)
{
	assert(kbd);
	assert(dev);
	kbd->input_sess = NULL;
	kbd->parent_sess = devman_parent_device_connect(EXCHANGE_SERIALIZE,
	    dev->handle, IPC_FLAG_BLOCKING);
	if (!kbd->parent_sess)
		return ENOMEM;

	kbd->kbd_fun = ddf_fun_create(dev, fun_exposed, "kbd");
	if (!kbd->kbd_fun) {
		async_hangup(kbd->parent_sess);
		return ENOMEM;
	}

	const int ret = ddf_fun_bind(kbd->kbd_fun);
	if (ret != EOK) {
		async_hangup(kbd->parent_sess);
		ddf_fun_destroy(kbd->kbd_fun);
		return ENOMEM;
	}

	kbd->polling_fibril = fibril_create(polling, kbd);
	if (!kbd->polling_fibril) {
		async_hangup(kbd->parent_sess);
		ddf_fun_unbind(kbd->kbd_fun);
		ddf_fun_destroy(kbd->kbd_fun);
		return ENOMEM;
	}
	fibril_add_ready(kbd->polling_fibril);
	return EOK;
}
/*----------------------------------------------------------------------------*/
int polling(void *arg)
{
	assert(arg);
	xt_kbd_t *kbd = arg;

	assert(kbd->parent_sess);
	while (1) {
		uint8_t code = 0;
		ssize_t size = char_dev_read(kbd->parent_sess, &code, 1);
		ddf_msg(LVL_DEBUG, "Got scancode: %hhx, size: %zd", code, size);
	}
}