/* packet-slimp3.c
 * Routines for SliMP3 protocol dissection
 *
 * Ashok Narayanan <ashokn@cisco.com>
 *
 * Adds support for the data packet protocol for the SliMP3
 * See www.slimdevices.com for details.
 *
 * $Id$
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "config.h"

#include <glib.h>
#include <string.h>
#include <ctype.h>
#include <epan/packet.h>
#include <epan/to_str.h>

static int proto_slimp3 = -1;
static int hf_slimp3_opcode = -1;
static int hf_slimp3_control = -1;
static int hf_slimp3_uptime = -1;
static int hf_slimp3_code_id = -1;
static int hf_slimp3_code_bits = -1;
static int hf_slimp3_infrared_slimp3 = -1;
static int hf_slimp3_infrared_jvc = -1;
static int hf_slimp3_infrared = -1;
static int hf_slimp3_device_id = -1;
static int hf_slimp3_fw_rev = -1;
static int hf_slimp3_data_offset = -1;
static int hf_slimp3_data_command = -1;
static int hf_slimp3_data_write_pointer = -1;
static int hf_slimp3_data_sequence = -1;
static int hf_slimp3_disc_rsp_server_ip = -1;
static int hf_slimp3_disc_rsp_server_port = -1;
static int hf_slimp3_data_ack_write_pointer = -1;
static int hf_slimp3_data_ack_read_pointer = -1;
static int hf_slimp3_data_ack_sequence = -1;
static int hf_slimp3_data_req_offset = -1;

static gint ett_slimp3 = -1;

#define UDP_PORT_SLIMP3_V1    1069
#define UDP_PORT_SLIMP3_V2    3483

#define	SLIMP3_IR	'i'
#define	SLIMP3_CONTROL	's'
#define	SLIMP3_HELLO	'h'
#define	SLIMP3_DATA	'm'
#define	SLIMP3_DATA_REQ	'r'
#define	SLIMP3_DISPLAY	'l'
#define	SLIMP3_I2C 	'2'
#define	SLIMP3_DISC_REQ 'd'
#define	SLIMP3_DISC_RSP 'D'
#define SLIMP3_DATA_ACK 'a'

static const value_string slimp3_opcode_vals[] = {
	{ SLIMP3_IR,       "Infrared Remote Code" },
	{ SLIMP3_CONTROL,  "Stream Control" },
	{ SLIMP3_DATA,     "MPEG Data" },
	{ SLIMP3_DATA_REQ, "Data Request" },
	{ SLIMP3_HELLO,    "Hello" },
	{ SLIMP3_DISPLAY,  "Display" },
	{ SLIMP3_I2C,      "I2C" },
	{ SLIMP3_DISC_REQ, "Discovery Request" },
	{ SLIMP3_DISC_RSP, "Discovery Response" },
	{ SLIMP3_DATA_ACK, "Ack" },
	{ 0,               NULL }
};

/* IR remote control types */
static const value_string slimp3_ir_types[] = {
	{ 0x02, "SLIMP3" },
	{ 0xff, "JVC DVD Player" },

	{ 0, NULL }
};

/* IR codes for the custom SLIMP3 remote control */
static const value_string slimp3_ir_codes_slimp3[] = {
	{ 0x76899867, "0" },
	{ 0x7689f00f, "1" },
	{ 0x768908f7, "2" },
	{ 0x76898877, "3" },
	{ 0x768948b7, "4" },
	{ 0x7689c837, "5" },
	{ 0x768928d7, "6" },
	{ 0x7689a857, "7" },
	{ 0x76896897, "8" },
	{ 0x7689e817, "9" },
	{ 0x7689b04f, "arrow_down" },
	{ 0x7689906f, "arrow_left" },
	{ 0x7689d02f, "arrow_right" },
	{ 0x7689e01f, "arrow_up" },
	{ 0x768900ff, "voldown" },
	{ 0x7689807f, "volup" },
	{ 0x768940bf, "power" },
	{ 0x7689c03f, "rew" },
	{ 0x768920df, "pause" },
	{ 0x7689a05f, "fwd" },
	{ 0x7689609f, "add" },
	{ 0x768910ef, "play" },
	{ 0x768958a7, "search" },
	{ 0x7689d827, "shuffle" },
	{ 0x768938c7, "repeat" },
	{ 0x7689b847, "sleep" },
	{ 0x76897887, "now_playing" },
	{ 0x7689f807, "size" },
	{ 0x768904fb, "brightness" },

	{ 0,      NULL }
};

/* IR codes for the JVC remote control */
static const value_string slimp3_ir_codes_jvc[] = {
	{ 0xf786, "One" },
	{ 0xf746, "Two" },
	{ 0xf7c6, "Three" },
	{ 0xf726, "Four" },
	{ 0xf7a6, "Five" },
	{ 0xf766, "Six" },
	{ 0xf7e6, "Seven" },
	{ 0xf716, "Eight" },
	{ 0xf796, "Nine" },
	{ 0xf776, "Ten" },

	{ 0xf7f6, "Picture-In-Picture" },
	/* { 0xf7XX, "Enter" }, */
	{ 0xf70e, "Back" },
	{ 0xf732, "Play" },
	{ 0xf76e, "Forward" },
	{ 0xf743, "Record" },
	{ 0xf7c2, "Stop" },
	{ 0xf7b2, "Pause" },
	/* { 0xf7XX, "TV/Video" }, */
	{ 0xf703, "Display" },
	{ 0xf7b3, "Sleep" },
	{ 0xf7b6, "Guide" },
	{ 0xf70b, "Up" },
	{ 0xf74b, "Left" },
	{ 0xf7cb, "Right" },
	{ 0xf78b, "Down" },
	{ 0xf783, "Menu" },
	{ 0xf72b, "OK" },
	{ 0xf778, "Volume Up" },
	{ 0xf7f8, "Volume Down" },
	{ 0xf70d, "Channel Up" },
	{ 0xf78d, "Channel Down" },
	/* { 0xf7XX, "Mute" },  */
	{ 0xf7ab, "Recall" },
	{ 0xf702, "Power" },

	{ 0,      NULL }
};


static const value_string slimp3_display_commands[] = {
	{  0x1, "Clear Display"},
	{  0x2, "Cursor to 1st Line Home"},

	{  0x4, "Mode: Decrement Address, Shift Cursor"},
	{  0x5, "Mode: Decrement Address, Shift Display"},
	{  0x6, "Mode: Increment Address, Shift Cursor"},
	{  0x7, "Mode: Increment Address, Shift Display"},

	{  0x8, "Display Off"},
	{  0xd, "Display On, With Blinking"},
	{  0xe, "Display On, With Cursor"},
	{  0xf, "Display On, With Cursor And Blinking"},

	{ 0x10, "Move Cursor Left"},
	{ 0x14, "Move Cursor Right"},
	{ 0x18, "Shift Display Left"},
	{ 0x1b, "Shift Display Right"},

	{ 0x30, "Set (8-bit)"},
	{ 0x20, "Set (4-bit)"},

	{ 0xa0, "Cursor to Top Right"},
	{ 0xc0, "Cursor to 2nd Line Home"},

	{    0, NULL},
};

static const value_string slimp3_display_fset8[] = {
	{ 0x0, "Brightness 100%"},
	{ 0x1, "Brightness 75%"},
	{ 0x2, "Brightness 50%"},
	{ 0x3, "Brightness 25%"},

	{   0, NULL },
};

static const value_string slimp3_stream_control[] = {
	{ 1, "Reset buffer, Start New Stream"},
	{ 2, "Pause Playback"},
	{ 4, "Resume Playback"},
	{ 0, NULL },
};


static const value_string slimp3_mpg_control[] = {
	{ 0, "Go"},           /* Run the decoder */
	{ 1, "Stop"},         /* Halt decoder but don't reset rptr */
	{ 3, "Reset"},        /* Halt decoder and reset rptr */

	{ 0, NULL }
};

#define MAX_LCD_STR_LEN 128
static int
dissect_slimp3(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
	const char	*opcode_str;
	proto_tree	*slimp3_tree;
	proto_item	*ti;
	gint		i1;
	gint		offset = 0;
	guint16		opcode;
	guchar		lcd_char;
	char		lcd_str[MAX_LCD_STR_LEN + 1];
	int			to_server = FALSE;
	int			old_protocol = FALSE;
	address		tmp_addr;
	gboolean	in_str;
	int			lcd_strlen;

	/*
	 * If it doesn't begin with a known opcode, reject it, so that
	 * traffic that happens to be do or from one of our ports
	 * doesn't get misidentified as SliMP3 traffic.
	 */
	if (!tvb_bytes_exist(tvb, offset, 1))
		return 0;	/* not even an opcode */
	opcode = tvb_get_guint8(tvb, offset);
	opcode_str = try_val_to_str(opcode, slimp3_opcode_vals);
	if (opcode_str == NULL)
		return 0;

	col_set_str(pinfo->cinfo, COL_PROTOCOL, "SliMP3");
	col_add_str(pinfo->cinfo, COL_INFO, opcode_str);

	ti = proto_tree_add_item(tree, proto_slimp3, tvb, offset, -1, ENC_NA);
	slimp3_tree = proto_item_add_subtree(ti, ett_slimp3);

	proto_tree_add_uint(slimp3_tree, hf_slimp3_opcode, tvb,
				offset, 1, opcode);

	/* The new protocol (v1.3 and later) uses an IANA-assigned port number.
	* It usually uses the same number for both sizes of the conversation, so
	* the port numbers can't always be used to determine client and server.
	* The new protocol places the clients MAC address in the packet, so that
	* is used to identify packets originating at the client.
	*/
	if ((pinfo->destport == UDP_PORT_SLIMP3_V2) && (pinfo->srcport == UDP_PORT_SLIMP3_V2)) {
		TVB_SET_ADDRESS(&tmp_addr, AT_ETHER, tvb, offset+12, 6);
		to_server = ADDRESSES_EQUAL(&tmp_addr, &pinfo->dl_src);
	}
	else if (pinfo->destport == UDP_PORT_SLIMP3_V2) {
		to_server = TRUE;
	}
	else if (pinfo->srcport == UDP_PORT_SLIMP3_V2) {
		to_server = FALSE;
	}
	if (pinfo->destport == UDP_PORT_SLIMP3_V1) {
		to_server = TRUE;
		old_protocol = TRUE;
	}
	else if (pinfo->srcport == UDP_PORT_SLIMP3_V1) {
		to_server = FALSE;
		old_protocol = TRUE;
	}

	switch (opcode) {

	case SLIMP3_IR:
		/* IR code
		*
		* [0]        'i' as in "IR"
		* [1]        0x00
		* [2..5]     player's time since startup in ticks @625 KHz
		* [6]        IR code id, ff=JVC, 02=SLIMP3
		* [7]        number of meaningful bits - 16 for JVC, 32 for SLIMP3
		* [8..11]    the 32-bit IR code
		* [12..17]   reserved
		*/
		if (tree) {
			i1 = tvb_get_ntohl(tvb, offset+2);
			proto_tree_add_uint_format_value(slimp3_tree, hf_slimp3_uptime, tvb, offset+2, 4, i1,
				"%u sec (%u ticks)", i1/625000, i1);

			proto_tree_add_item(slimp3_tree, hf_slimp3_code_id, tvb, offset+6, 1, ENC_BIG_ENDIAN);
			proto_tree_add_item(slimp3_tree, hf_slimp3_code_bits, tvb, offset+7, 1, ENC_BIG_ENDIAN);

			i1 = tvb_get_ntohl(tvb, offset+8);
			/* Check the code to figure out which remote is being used. */
			if (tvb_get_guint8(tvb, offset+6) == 0x02 &&
				tvb_get_guint8(tvb, offset+7) == 32) {
					/* This is the custom SLIMP3 remote. */
				proto_tree_add_item(slimp3_tree, hf_slimp3_infrared_slimp3, tvb, offset+8, 4, ENC_BIG_ENDIAN);
				col_append_fstr(pinfo->cinfo, COL_INFO, ", SLIMP3: %s",
						val_to_str(i1, slimp3_ir_codes_slimp3, "Unknown (0x%0x)"));
			}
			else if (tvb_get_guint8(tvb, offset+6) == 0xff &&
				 tvb_get_guint8(tvb, offset+7) == 16) {
				/* This is a JVC DVD player remote */
				proto_tree_add_item(slimp3_tree, hf_slimp3_infrared_jvc, tvb, offset+8, 4, ENC_BIG_ENDIAN);
				col_append_fstr(pinfo->cinfo, COL_INFO, ", JVC: %s",
						val_to_str(i1, slimp3_ir_codes_jvc, "Unknown (0x%0x)"));
			} else {
				/* Unknown code; just write it */
				proto_tree_add_item(slimp3_tree, hf_slimp3_infrared, tvb, offset+8, 4, ENC_BIG_ENDIAN);
				col_append_fstr(pinfo->cinfo, COL_INFO, ", 0x%0x", i1);
			}
		}
		break;

	case SLIMP3_DISPLAY:
		if (tree) {
			/* Loop through the commands */
			i1 = 18;
			in_str = FALSE;
			lcd_strlen = 0;
			while (i1 < tvb_reported_length_remaining(tvb, offset)) {
				switch(tvb_get_guint8(tvb, offset + i1)) {
				case 0:
					in_str = FALSE;
					lcd_strlen = 0;
					proto_tree_add_text(slimp3_tree, tvb, offset + i1, 2,
							"Delay (%u ms)", tvb_get_guint8(tvb, offset + i1 + 1));
					i1 += 2;
					break;
				case 3:
					lcd_char = tvb_get_guint8(tvb, offset + i1 + 1);
					if (!isprint(lcd_char))
						lcd_char = '.';
					if (ti && in_str) {
						lcd_strlen += 2;
						proto_item_append_text(ti, "%c", lcd_char);
						proto_item_set_len(ti, lcd_strlen);
					} else {
						ti = proto_tree_add_text(slimp3_tree, tvb, offset + i1, 2,
									 "String: %c", lcd_char);
						in_str = TRUE;
						lcd_strlen = 2;
					}
					i1 += 2;
					break;

				case 2:
					in_str = FALSE;
					lcd_strlen = 0;
					ti = proto_tree_add_text(slimp3_tree, tvb, offset + i1, 2,
								 "Command: %s",
								 val_to_str(tvb_get_guint8(tvb, offset + i1 + 1),
									slimp3_display_commands,
									"Unknown (0x%0x)"));
					if ((tvb_get_guint8(tvb, offset + i1 + 1) & 0xf0) == 0x30) {
						proto_item_append_text(ti, ": %s",
									   val_to_str(tvb_get_guint8(tvb, offset + i1 + 2),
										  slimp3_display_fset8,
										  "Unknown (0x%0x)"));
						i1 += 2;
					}
					i1 += 2;
					break;

				default:
					proto_tree_add_text(slimp3_tree, tvb, offset + i1, 2,
							"Unknown 0x%0x, 0x%0x",
							tvb_get_guint8(tvb, offset + i1),
							tvb_get_guint8(tvb, offset + i1 + 1));
					i1 += 2;
					break;
				}
			}
		}

		i1 = 18;
		lcd_strlen = 0;
		while (tvb_offset_exists(tvb, offset + i1) &&
			lcd_strlen < MAX_LCD_STR_LEN) {
			switch (tvb_get_guint8(tvb, offset + i1)) {

			case 0:
				lcd_str[lcd_strlen++] = '.';
				break;

			case 2:
				lcd_str[lcd_strlen++] = '|';
				if (tvb_offset_exists(tvb, offset + i1 + 1) &&
					(tvb_get_guint8(tvb, offset + i1 + 1) & 0xf0) == 0x30)
				i1 += 2;
				break;

			case 3:
				if (tvb_offset_exists(tvb, offset + i1 + 1)) {
					if ((lcd_strlen < 1) ||
						(lcd_str[lcd_strlen-1] != ' ') ||
						(tvb_get_guint8(tvb, offset + i1 + 1) != ' ')) {
							lcd_char = tvb_get_guint8(tvb, offset + i1 + 1);
							lcd_str[lcd_strlen++] = isprint(lcd_char) ? lcd_char : '.';
					}
				}
			}

			i1 += 2;
		}
		lcd_str[lcd_strlen] = '\0';
		if (lcd_strlen > 0)
			col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", lcd_str);
		break;

	case SLIMP3_CONTROL:
		proto_tree_add_item(slimp3_tree, hf_slimp3_control, tvb, offset+1, 1, ENC_BIG_ENDIAN);
		col_append_fstr(pinfo->cinfo, COL_INFO, ", %s",
						val_to_str(tvb_get_guint8(tvb, offset+1),
						slimp3_stream_control, "Unknown (0x%0x)"));
		break;

	case SLIMP3_HELLO:
		if (tree) {
			if (to_server) {
				guint8 fw_ver;
				/* Hello response; client->server */
				proto_tree_add_text(slimp3_tree, tvb, offset, 1, "Hello Response (Client --> Server)");
				proto_tree_add_item(slimp3_tree, hf_slimp3_device_id, tvb, offset+1, 1, ENC_BIG_ENDIAN);
				fw_ver = tvb_get_guint8(tvb, offset+2);
				proto_tree_add_uint_format_value(slimp3_tree, hf_slimp3_fw_rev, tvb, offset+2, 1, fw_ver,
									"%u.%u (0x%0x)", fw_ver>>4, fw_ver & 0xf, fw_ver);
			} else {
				/* Hello request; server->client */
				proto_tree_add_text(slimp3_tree, tvb, offset, 1, "Hello Request (Server --> Client)");
			}
		}
		break;

	case SLIMP3_I2C:
		if (to_server) {
			/* Hello response; client->server */
			proto_tree_add_text(slimp3_tree, tvb, offset, -1,
						"I2C Response (Client --> Server)");
			col_append_str(pinfo->cinfo, COL_INFO, ", Response");
		} else {
			/* Hello request; server->client */
			proto_tree_add_text(slimp3_tree, tvb, offset, -1,
						"I2C Request (Server --> Client)");
			col_append_str(pinfo->cinfo, COL_INFO, ", Request");
		}
		break;

	case SLIMP3_DATA_REQ:
		proto_tree_add_item(slimp3_tree, hf_slimp3_data_req_offset, tvb, offset+2, 2, ENC_BIG_ENDIAN);
		col_append_fstr(pinfo->cinfo, COL_INFO, ", Offset: %u bytes",
					tvb_get_ntohs(tvb, offset+2)*2);
		break;

	case SLIMP3_DATA:
		/* MPEG data (v1.3 and later)
		*
		*  [0]       'm'
		*  [1..5]    reserved
		*  [6..7]    Write pointer (in words)
		*  [8..9]    reserved
		*  [10..11]  Sequence number
		*  [12..17]  reserved
		*  [18..]    MPEG data
		*/
		if (old_protocol) {
			guint offset_buffer;
			proto_tree_add_text(slimp3_tree, tvb, offset, -1,
					"Length: %d bytes",
					tvb_reported_length_remaining(tvb, offset+18));
			offset_buffer = tvb_get_ntohs(tvb, offset+2) * 2;
			proto_tree_add_uint(slimp3_tree, hf_slimp3_data_offset, tvb, offset+2, 2, offset_buffer);

			col_append_fstr(pinfo->cinfo, COL_INFO,
				", Length: %d bytes, Offset: %u bytes.",
				tvb_reported_length_remaining(tvb, offset+18),
				offset_buffer);
		}
		else {
			guint write_pointer;
			proto_tree_add_item(slimp3_tree, hf_slimp3_data_command, tvb, offset+1, 1, ENC_BIG_ENDIAN);
			proto_tree_add_text(slimp3_tree, tvb, offset, -1,
					"Length: %d bytes",
					tvb_reported_length_remaining(tvb, offset+18));
			write_pointer = tvb_get_ntohs(tvb, offset+6) * 2;
			proto_tree_add_uint(slimp3_tree, hf_slimp3_data_write_pointer, tvb, offset+6, 2, write_pointer);
			proto_tree_add_item(slimp3_tree, hf_slimp3_data_sequence, tvb, offset+10, 2, ENC_BIG_ENDIAN);

			col_append_fstr(pinfo->cinfo, COL_INFO,
				", %s, %d bytes at %u, Sequence: %u",
				val_to_str(tvb_get_guint8(tvb, offset+1),
					   slimp3_mpg_control, "Unknown (0x%0x)"),
				tvb_reported_length_remaining(tvb, offset+18),
				write_pointer,
				tvb_get_ntohs(tvb, offset+10));
		}
		break;

	case SLIMP3_DISC_REQ:
		{
		guint8 fw_ver;
		proto_tree_add_item(slimp3_tree, hf_slimp3_device_id, tvb, offset+1, 1, ENC_BIG_ENDIAN);
		fw_ver = tvb_get_guint8(tvb, offset+2);
		proto_tree_add_uint_format_value(slimp3_tree, hf_slimp3_fw_rev, tvb, offset+2, 1, fw_ver,
							"%u.%u (0x%0x)", fw_ver>>4, fw_ver & 0xf, fw_ver);
		col_append_fstr(pinfo->cinfo, COL_INFO, ", Device ID: %u. Firmware: %u.%u",
						tvb_get_guint8(tvb, offset+1), fw_ver>>4, fw_ver & 0xf);
		}
		break;

	case SLIMP3_DISC_RSP:
		if (tree) {
			proto_tree_add_item(slimp3_tree, hf_slimp3_disc_rsp_server_ip, tvb, offset+2, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(slimp3_tree, hf_slimp3_disc_rsp_server_port, tvb, offset+6, 2, ENC_BIG_ENDIAN);
		}

		col_append_fstr(pinfo->cinfo, COL_INFO, ", Server Address: %s. Server Port: %u",
					tvb_ip_to_str(tvb, offset+2),
					tvb_get_ntohs(tvb, offset + 6));
		break;

	case SLIMP3_DATA_ACK:
		/* Acknowledge MPEG data
		*
		*  [0]       'a'
		*  [1..5]
		*  [6..7]    Write pointer (in words)
		*  [8..9]    Read pointer (in words)
		*  [10..11]  Sequence number
		*  [12..17]  client MAC address (v1.3 and later)
		*/
		if (tree) {
			guint pointer;

			pointer = tvb_get_ntohs(tvb, offset+6) * 2;
			proto_tree_add_uint(slimp3_tree, hf_slimp3_data_ack_write_pointer, tvb, offset+6, 2, pointer);
			pointer = tvb_get_ntohs(tvb, offset+8) * 2;
			proto_tree_add_uint(slimp3_tree, hf_slimp3_data_ack_read_pointer, tvb, offset+8, 2, pointer);
			proto_tree_add_item(slimp3_tree, hf_slimp3_data_ack_sequence, tvb, offset+10, 2, ENC_BIG_ENDIAN);
		}

		col_append_fstr(pinfo->cinfo, COL_INFO, ", Sequence: %u",
					tvb_get_ntohs(tvb, offset+10));
		break;

	default:
		if (tree) {
			proto_tree_add_text(slimp3_tree, tvb, offset, -1,
					"Data (%d bytes)", tvb_reported_length_remaining(tvb, offset));
		}
		break;
	}

	return tvb_reported_length(tvb);
}

void
proto_register_slimp3(void)
{
	static hf_register_info hf[] = {
	{ &hf_slimp3_opcode,
	  { "Opcode", "slimp3.opcode",
	FT_UINT8, BASE_DEC, VALS(slimp3_opcode_vals), 0x0,
		"SLIMP3 message type", HFILL }},

	{ &hf_slimp3_control,
	  { "Control Packet", "slimp3.control",
	FT_UINT8, BASE_DEC, VALS(slimp3_stream_control), 0x0,
		"SLIMP3 control", HFILL }},

	{ &hf_slimp3_uptime,
	  { "Uptime", "slimp3.uptime",
	FT_UINT32, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_code_id,
	  { "Code identifier", "slimp3.code_id",
	FT_UINT8, BASE_DEC, VALS(slimp3_ir_types), 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_code_bits,
	  { "Code bits", "slimp3.code_bits",
	FT_UINT8, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_infrared_slimp3,
	  { "Infrared Code", "slimp3.infrared",
	FT_UINT32, BASE_HEX, VALS(slimp3_ir_codes_slimp3), 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_infrared_jvc,
	  { "Infrared Code", "slimp3.infrared",
	FT_UINT32, BASE_HEX, VALS(slimp3_ir_codes_jvc), 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_infrared,
	  { "Infrared Code", "slimp3.infrared",
	FT_UINT32, BASE_HEX, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_device_id,
	  { "Device ID", "slimp3.device_id",
	FT_UINT8, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_fw_rev,
	  { "Firmware Revision", "slimp3.fw_rev",
	FT_UINT8, BASE_HEX, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_offset,
	  { "Buffer offset", "slimp3.data.offset",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_command,
	  { "Command", "slimp3.data.command",
	FT_UINT8, BASE_HEX, VALS(slimp3_mpg_control), 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_write_pointer,
	  { "Write Pointer", "slimp3.data.write_pointer",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_sequence,
	  { "Sequence", "slimp3.data.sequence",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_disc_rsp_server_ip,
	  { "Server Address", "slimp3.disc_rsp.server_ip",
	FT_IPv4, BASE_NONE, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_disc_rsp_server_port,
	  { "Server Port", "slimp3.disc_rsp.server_port",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_ack_write_pointer,
	  { "Write Pointer", "slimp3.data_ack.write_pointer",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_ack_read_pointer,
	  { "Read Pointer", "slimp3.data_ack.read_pointer",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_ack_sequence,
	  { "Sequence", "slimp3.data_ack.sequence",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},

	{ &hf_slimp3_data_req_offset,
	  { "Requested offset", "slimp3.data_req.offset",
	FT_UINT16, BASE_DEC, NULL, 0x0,
		NULL, HFILL }},
	};

	static gint *ett[] = {
		&ett_slimp3,
	};

	proto_slimp3 = proto_register_protocol("SliMP3 Communication Protocol",
						"SliMP3", "slimp3");
	proto_register_field_array(proto_slimp3, hf, array_length(hf));
	proto_register_subtree_array(ett, array_length(ett));
}

void
proto_reg_handoff_slimp3(void)
{
	dissector_handle_t slimp3_handle;

	slimp3_handle = new_create_dissector_handle(dissect_slimp3, proto_slimp3);
	dissector_add_uint("udp.port", UDP_PORT_SLIMP3_V1, slimp3_handle);
	dissector_add_uint("udp.port", UDP_PORT_SLIMP3_V2, slimp3_handle);
}

/*
 * Editor modelines
 *
 * Local Variables:
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 *
 * ex: set shiftwidth=4 tabstop=4 expandtab:
 * :indentSize=4:tabSize=4:noTabs=true:
 */
