/*
 * Copyright (c) 2009 Lukas Mejdrech
 * 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 libc
 * @{
 */

/** @file
 * Device identifier, state and usage statistics.
 */

#ifndef LIBC_DEVICE_ID_TYPE_H_
#define LIBC_DEVICE_ID_TYPE_H_

#include <adt/int_map.h>

/** Device identifier to generic type map declaration. */
#define DEVICE_MAP_DECLARE	INT_MAP_DECLARE

/** Device identifier to generic type map implementation. */
#define DEVICE_MAP_IMPLEMENT	INT_MAP_IMPLEMENT

/** Invalid device identifier. */
#define DEVICE_INVALID_ID	(-1)

/** Device identifier type. */
typedef int device_id_t;

/** Device state type. */
typedef enum device_state device_state_t;

/** Type definition of the device usage statistics.
 * @see device_stats
 */
typedef struct device_stats device_stats_t;

/** Device state. */
enum device_state {
	/** Device not present or not initialized. */
	NETIF_NULL = 0,
	/** Device present and stopped. */
	NETIF_STOPPED,
	/** Device present and active. */
	NETIF_ACTIVE,
	/** Device present but unable to transmit. */
	NETIF_CARRIER_LOST
};

/** Device usage statistics. */
struct device_stats {
	/** Total packets received. */
	unsigned long receive_packets;
	/** Total packets transmitted. */
	unsigned long send_packets;
	/** Total bytes received. */
	unsigned long receive_bytes;
	/** Total bytes transmitted. */
	unsigned long send_bytes;
	/** Bad packets received counter. */
	unsigned long receive_errors;
	/** Packet transmition problems counter. */
	unsigned long send_errors;
	/** No space in buffers counter. */
	unsigned long receive_dropped;
	/** No space available counter. */
	unsigned long send_dropped;
	/** Total multicast packets received. */
	unsigned long multicast;
	/** The number of collisions due to congestion on the medium. */
	unsigned long collisions;

	/* detailed receive_errors */

	/** Received packet length error counter. */
	unsigned long receive_length_errors;
	/** Receiver buffer overflow counter. */
	unsigned long receive_over_errors;
	/** Received packet with crc error counter. */
	unsigned long receive_crc_errors;
	/** Received frame alignment error counter. */
	unsigned long receive_frame_errors;
	/** Receiver fifo overrun counter. */
	unsigned long receive_fifo_errors;
	/** Receiver missed packet counter. */
	unsigned long receive_missed_errors;

	/* detailed send_errors */

	/** Transmitter aborted counter. */
	unsigned long send_aborted_errors;
	/** Transmitter carrier errors counter. */
	unsigned long send_carrier_errors;
	/** Transmitter fifo overrun counter. */
	unsigned long send_fifo_errors;
	/** Transmitter carrier errors counter. */
	unsigned long send_heartbeat_errors;
	/** Transmitter window errors counter. */
	unsigned long send_window_errors;

	/* for cslip etc */
	
	/** Total compressed packets received. */
	unsigned long receive_compressed;
	/** Total compressed packet transmitted. */
	unsigned long send_compressed;
};

#endif

/** @}
 */