mirror of
https://github.com/halleysfifthinc/AVCLAN-Mockingboard.git
synced 2026-08-07 01:13:18 +00:00
Refactor frame dissector to improve readability/future expansion
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Allen Hill
@@ -95,37 +95,16 @@ udlt:add(wtap.USER15, iebusproto)
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local avclanproto = Proto("avclan", "AVCLAN protocol")
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local known_devices_names = {
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["LAN"] = 0x00,
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["COMM_CTRL"] = 0x01,
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["COMMUNICATION v1"] = 0x11,
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["COMMUNICATION v2"] = 0x12,
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["SW"] = 0x21,
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["SW_NAME"] = 0x23,
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["SW_CONVERTING"] = 0x24,
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["CMD_SW"] = 0x25,
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["STATUS"] = 0x31,
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["BEEP_HU"] = 0x28,
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["BEEP_SPEAKERS"] = 0x29,
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["FRONT_PSNG_MONITOR"] = 0x34,
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["CD_CHANGER2"] = 0x43,
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["BLUETOOTH_TEL"] = 0x55,
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["INFO_DRAWING"] = 0x56,
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["NAV_ECU"] = 0x58,
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["CAMERA"] = 0x5C,
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["CLIMATE_DRAWING"] = 0x5D,
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["AUDIO_DRAWING"] = 0x5E,
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["TRIP_INFO_DRAWING"] = 0x5F,
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["TUNER"] = 0x60,
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["TAPE_DECK"] = 0x61,
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["CD"] = 0x62,
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["CD_CHANGER"] = 0x63,
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["AUDIO_AMP"] = 0x74,
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["GPS"] = 0x80,
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["VOICE_CTRL"] = 0x85,
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["CLIMATE_CTRL_DEV"] = 0xE0,
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["TRIP_INFO"] = 0xE5,
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}
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-- Build a reverse {value = key} lookup from a {key = value} table. Lets us keep
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-- a single source-of-truth value->name table (also used as the ProtoField
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-- valuestring) and derive the name->value lookup instead of hand-maintaining two.
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local function invert(t)
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local r = {}
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for k, v in pairs(t) do
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r[v] = k
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end
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return r
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end
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local known_devices = {
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[0x00] = "LAN",
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@@ -158,84 +137,12 @@ local known_devices = {
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[0xE0] = "CLIMATE_CTRL_DEV",
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[0xE5] = "TRIP_INFO",
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}
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local known_devices_names = invert(known_devices)
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local f_from_device = ProtoField.uint8("avclan.from_device", "From device", base.HEX, known_devices)
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local f_to_device = ProtoField.uint8("avclan.to_device", "To device", base.HEX, known_devices)
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local f_active_device = ProtoField.uint8("avclan.active_device", "Active device", base.HEX, known_devices)
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local known_actions_names = {
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-- LAN related
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["LIST_FUNCTIONS_REQ"] = 0x00,
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["LIST_FUNCTIONS_RESP"] = 0x10,
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["RESTART_LAN"] = 0x01,
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["LANCHECK_END_REQ"] = 0x08,
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["LANCHECK_END_RESP"] = 0x18,
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["LANCHECK_SCAN_REQ"] = 0x0a,
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["LANCHECK_SCAN_RESP"] = 0x1a,
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["LANCHECK_REQ"] = 0x0c,
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["LANCHECK_RESP"] = 0x1c,
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["PING_REQ"] = 0x20,
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["PING_RESP"] = 0x30,
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-- Device switching
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["DISABLE_FUNCTION_REQ"] = 0x43,
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["DISABLE_FUNCTION_RESP"] = 0x53,
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["ENABLE_FUNCTION_REQ"] = 0x42,
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["ENABLE_FUNCTION_RESP"] = 0x52,
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-- ADVERTISE_FUNCTION is named Current_Function in src/avclandrv.h
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["ADVERTISE_FUNCTION"] = 0x45,
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["GENERAL_QUERY"] = 0x46,
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["SCREEN_PRESS"] = 0x78,
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["BEEP"] = 0x60,
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-- Physical interface
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["BACKLIGHT_ADJUST"] = 0x59,
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["EJECT"] = 0x80,
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["DISC_UP"] = 0x90,
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["DISC_DOWN"] = 0x91,
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["PWRVOL_KNOB_RIGHTHAND_TURN"] = 0x9c,
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["PWRVOL_KNOB_LEFTHAND_TURN"] = 0x9d,
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["TRACK_SEEK_UP"] = 0x94,
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["TRACK_SEEK_DOWN"] = 0x95,
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["TRACK_FAST_FORWARD"] = 0x98,
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["TRACK_REWIND"] = 0x99,
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["CD_ENABLE_SCAN"] = 0xa6,
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["CD_DISABLE_SCAN"] = 0xa7,
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["CD_ENABLE_DISK_SCAN"] = 0xa9,
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["CD_DISABLE_DISK_SCAN"] = 0xaa,
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["CD_ENABLE_REPEAT"] = 0xa0,
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["CD_DISABLE_REPEAT"] = 0xa1,
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["CD_ENABLE_DISK_REPEAT"] = 0xa3,
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["CD_DISABLE_DISK_REPEAT"] = 0xa4,
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["CD_ENABLE_RANDOM"] = 0xb0,
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["CD_DISABLE_RANDOM"] = 0xb1,
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["CD_ENABLE_DISK_RANDOM"] = 0xb3,
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["CD_DISABLE_DISK_RANDOM"] = 0xb4,
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["TAPE_NOT_READY"] = 0x9f, -- Uncertain guess by @marcin
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-- CD functions
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-- Events
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["INSERTION"] = 0x50,
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["EJECTION"] = 0x51,
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-- Requests
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["INITIAL_REPORT_REQUEST"] = 0xe0,
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["PLAYBACK_REQUEST"] = 0xe2,
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["LOADING_REQUEST2"] = 0xe4,
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["REQUEST_TRACK_NAME"] = 0xed,
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-- Reports
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["INITIAL_REPORT_RESPONSE"] = 0xf0,
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["STATUS_REPORT"] = 0xf1,
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["PLAYBACK_REPORT"] = 0xf2,
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["LOADING_STATUS_REPORT"] = 0xf3,
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["LOADING_RESPONSE2"] = 0xf4,
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["REPORT_TOC"] = 0xf9,
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["REPORT_TRACK_NAME"] = 0xfd,
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}
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local known_actions = {
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-- LAN related
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[0x00] = "LIST_FUNCTIONS_REQ",
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@@ -308,6 +215,7 @@ local known_actions = {
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[0xf9] = "REPORT_TOC",
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[0xfd] = "REPORT_TRACK_NAME",
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}
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local known_actions_names = invert(known_actions)
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local f_action = ProtoField.uint8("avclan.action", "Action", base.HEX, known_actions)
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local f_functions = ProtoField.bytes("avclan.functions", "Functions", base.SPACE, "Device functions")
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@@ -523,6 +431,289 @@ local function mark_undecoded(tree, range)
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tree:add(range, "Undecoded bytes"):add_proto_expert_info(pe_unhandled_msg)
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end
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-- ---------------------------------------------------------------------------
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-- Per-message decoders.
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--
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-- Each decoder receives the message `subtree`, the `buffer`, and `offset` (the
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-- index of the `from` byte, accounting for the leading 0x00 on unicast frames).
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-- Device-state decoders also receive the resolved `action`. The dissector body
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-- below is just a router that selects one of these based on from/to/action,
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-- preserving the historical precedence order.
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-- ---------------------------------------------------------------------------
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-- CMD_SW source. Sub-commands to the amplifier (actions 0x90-0x95) set a
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-- tone/level control; these codes collide with physical-interface actions, so
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-- the CMD_SW -> AUDIO_AMP device pair disambiguates them.
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local function decode_cmd_sw(subtree, buffer, offset, to_device)
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subtree:add(f_action, buffer(offset+2,1))
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local action = field_action().value
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if to_device == known_devices_names["AUDIO_AMP"] then
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local amptree = subtree:add(avclanproto, buffer(offset+2,-1), "Device: Audio amplifier control")
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local param = buffer(offset+3,1)
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if action == 0x90 then -- VOLUME (BCD)
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local vol_raw = param:uint()
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local vol_bcd = bit.rshift(vol_raw, 4) * 10 + bit.band(vol_raw, 0x0F)
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amptree:add(f_amp_volume, param, vol_bcd):append_text(" (VOLUME)")
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elseif action == 0x91 then
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amptree:add(f_amp_balance, param)
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elseif action == 0x92 then
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amptree:add(f_amp_fade, param)
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elseif action == 0x93 then
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amptree:add(f_amp_bass, param)
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elseif action == 0x94 then
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amptree:add(f_amp_mid, param)
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elseif action == 0x95 then
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amptree:add(f_amp_treble, param)
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end
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end
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end
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-- COMMUNICATION v1/v2 source.
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local function decode_from_comm(subtree, buffer, offset, to_device)
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if to_device == known_devices_names["COMM_CTRL"] then
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subtree:add(f_action, buffer(offset+2,1))
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local action = field_action().value
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if action == known_actions_names["ADVERTISE_FUNCTION"] then
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subtree:add(f_active_device, buffer(offset+3,1))
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elseif action == known_actions_names["PING_REQ"] then
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subtree:add(f_ping_count, buffer(offset+3,1))
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subtree:add_proto_expert_info(pe_ping_req, "Ping request " .. buffer(offset+3,1):uint())
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elseif known_actions[action] then
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else
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subtree:add_proto_expert_info(pe_unhandled_msg)
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end
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else
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-- Control actions addressed to a peripheral rather than COMM_CTRL, e.g.
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-- function enable/disable (COMM_v1/v2 -> CD_CHANGER, 0x42/0x43). These
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-- are understood apart from a trailing 0x01 of unknown meaning.
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subtree:add(f_action, buffer(offset+2,1))
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end
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end
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-- COMM_CTRL source.
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local function decode_from_commctrl(subtree, buffer, offset, to_device)
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if to_device == known_devices_names["COMMUNICATION v1"] or
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to_device == known_devices_names["COMMUNICATION v2"] then
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local action_tree = subtree:add(f_action, buffer(offset+2,1))
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local action = field_action().value
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if action == known_actions_names["PING_RESP"] then
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subtree:add(f_ping_count, buffer(offset+3,1))
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subtree:add_proto_expert_info(pe_ping_resp, "Ping response " .. buffer(offset+3,1):uint())
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elseif action == known_actions_names["LIST_FUNCTIONS_RESP"] then
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local functions = action_tree:add(f_functions, buffer(offset+3))
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functions:append_text(" (")
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for v = 0,(buffer:bytes(offset+3)):len()-1 do
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if known_devices[buffer(offset+3+v,1):uint()] then
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functions:append_text(" " .. known_devices[buffer(offset+3+v,1):uint()])
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else
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functions:append_text(" UNKNOWN_DEVICE")
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end
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end
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functions:append_text(" ) ")
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elseif known_actions[action] then
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else
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subtree:add_proto_expert_info(pe_unhandled_msg)
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end
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elseif to_device == known_devices_names["COMM_CTRL"] then
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local action_tree = subtree:add(f_action, buffer(offset+2,1))
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local action = field_action().value
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if action == known_actions_names["BACKLIGHT_ADJUST"] then
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local backlight = subtree:add(f_backlight, buffer(offset+3,1))
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backlight:append_text(" (" .. math.floor(100*(63 - buffer(offset+3,1):uint())/63) .. ")")
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end
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elseif to_device == known_actions_names["LANCHECK_SCAN_REQ"] or
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to_device == known_actions_names["LANCHECK_REQ"] or
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to_device == known_actions_names["LANCHECK_END_REQ"] then
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subtree:add(f_action, buffer(offset+1,1))
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elseif to_device == 0x00 then
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subtree:add(f_action, buffer(offset+2,1))
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else
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subtree:add_proto_expert_info(pe_unhandled_msg)
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end
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end
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-- Beep request (any source -> BEEP_SPEAKERS), action 0x60 with a duration byte.
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local function decode_beep(subtree, buffer, offset)
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subtree:add(f_action, buffer(offset+2,1))
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local action = field_action().value
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if action == known_actions_names["BEEP"] then
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subtree:add(f_beep_duration, buffer(offset+3,1))
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else
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subtree:add_proto_expert_info(pe_unhandled_msg)
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end
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end
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-- TUNER source: radio state dump (regardless of action).
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local function decode_radio(subtree, buffer, offset, action)
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local radiotree = subtree:add(avclanproto, buffer(offset,10), "Device: Radio")
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radiotree:add_le(f_radio_active, buffer(offset+3,1))
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radiotree:add_le(f_radio_status, buffer(offset+4,1))
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radiotree:add_le(f_radio_band, buffer(offset+5,1))
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radiotree:add(f_radio_bandnumber, buffer(offset+5,1))
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local freqtree = radiotree:add(f_radio_freq, buffer(offset+6,2))
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local radio_band = buffer(offset+5,1):uint()
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local freq = field_radio_freq().value
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if bit.band(radio_band, 0xF0) == 0x80 then
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freqtree:append_text(" (" .. 87.5+(freq-1)*.05 .. " MHz)")
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elseif bit.band(radio_band, 0xF0) == 0xC0 then
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freqtree:append_text(" (" .. 153+(freq-1)*1 .. " kHz)")
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elseif bit.band(radio_band, 0xF0) == 0x00 then
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freqtree:append_text(" (" .. 522+(freq-1)*9 .. " kHz)")
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end
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local flags = radiotree:add(f_radio_flags, buffer(15,1))
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flags:add(f_radioflag_st, buffer(15,1))
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flags:add(f_radioflag_ta, buffer(15,1))
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flags:add(f_radioflag_reg, buffer(15,1))
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flags:add(f_radioflag_af, buffer(15,1))
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radiotree:add(f_radio_flags2, buffer(16,1))
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end
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-- AUDIO_AMP source: amplifier state dump (regardless of action).
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local function decode_amp(subtree, buffer, offset, action)
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local amptree = subtree:add(avclanproto, buffer(offset,10), "Device: Audio amplifier")
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local vol_raw = buffer(offset+4,1):uint()
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local vol_bcd = bit.rshift(vol_raw, 4) * 10 + bit.band(vol_raw, 0x0F)
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amptree:add(f_amp_volume, buffer(offset+4,1), vol_bcd)
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amptree:add(f_amp_balance, buffer(offset+5,1))
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amptree:add(f_amp_fade, buffer(offset+6,1))
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amptree:add(f_amp_bass, buffer(offset+7,1))
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amptree:add(f_amp_mid, buffer(offset+8,1))
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amptree:add(f_amp_treble, buffer(offset+9,1))
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end
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-- CD / CD_CHANGER source: payload depends on the report action.
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local function decode_cd(subtree, buffer, offset, action)
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if action == known_actions_names["STATUS_REPORT"] or
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action == known_actions_names["PLAYBACK_REPORT"] then
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local cdtree = subtree:add(avclanproto, buffer(offset,9), "Device: CD player")
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local cd_slots = cdtree:add(f_cd_slots, buffer(offset+3,1))
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cd_slots:add(f_cd_slot1, buffer(offset+3,1))
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cd_slots:add(f_cd_slot2, buffer(offset+3,1))
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cd_slots:add(f_cd_slot3, buffer(offset+3,1))
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cd_slots:add(f_cd_slot4, buffer(offset+3,1))
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cd_slots:add(f_cd_slot5, buffer(offset+3,1))
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cd_slots:add(f_cd_slot6, buffer(offset+3,1))
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local cd_state = cdtree:add(f_cd_state, buffer(offset+4,1))
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cd_state:add(f_cd_open, buffer(offset+4,1))
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cd_state:add(f_cd_err1, buffer(offset+4,1))
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cd_state:add(f_cd_seeking, buffer(offset+4,1))
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cd_state:add(f_cd_playback, buffer(offset+4,1))
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cd_state:add(f_cd_seeking_track, buffer(offset+4,1))
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cd_state:add(f_cd_loading, buffer(offset+4,1))
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local cd_status = cdtree:add(avclanproto, buffer(offset+5,-1), "")
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cd_status:add(f_cd_disc, buffer(offset+5,1))
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cd_status:add(f_cd_track, buffer(offset+6,1))
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cd_status:add(f_cd_min, buffer(offset+7,1))
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cd_status:add(f_cd_sec, buffer(offset+8,1))
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cd_status:append_text("Disc " .. field_cd_disc().value .. ", ")
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cd_status:append_text("track " .. tostring(buffer(offset+6,1)):gsub("(.)(.)", "%1%2") .. ", ")
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cd_status:append_text("time " .. tostring(buffer(offset+7,1)):gsub("0x(.)(.)", "%1%2") .. ":")
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cd_status:append_text(tostring(buffer(offset+8,1)):gsub("(.)(.)", "%1%2"))
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local cd_flags = cdtree:add(f_cd_flags, buffer(offset+9,1))
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cd_flags:add(f_cd_flag_disk_random, buffer(offset+9,1))
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cd_flags:add(f_cd_flag_random, buffer(offset+9,1))
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cd_flags:add(f_cd_flag_disk_repeat, buffer(offset+9,1))
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cd_flags:add(f_cd_flag_repeat, buffer(offset+9,1))
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cd_flags:add(f_cd_flag_disk_scan, buffer(offset+9,1))
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cd_flags:add(f_cd_flag_scan, buffer(offset+9,1))
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elseif action == known_actions_names["LOADING_STATUS_REPORT"] or
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action == known_actions_names["LOADING_RESPONSE2"] then
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local cdtree = subtree:add(avclanproto, buffer(offset,9), "Device: CD player")
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local available_slots = cdtree:add(f_cd_slots, buffer(offset+4,1))
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available_slots:add(f_cd_slot1, buffer(offset+4,1))
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available_slots:add(f_cd_slot2, buffer(offset+4,1))
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available_slots:add(f_cd_slot3, buffer(offset+4,1))
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available_slots:add(f_cd_slot4, buffer(offset+4,1))
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available_slots:add(f_cd_slot5, buffer(offset+4,1))
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available_slots:add(f_cd_slot6, buffer(offset+4,1))
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local occupied_slots = cdtree:add(f_cd_slots, buffer(offset+6,1))
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occupied_slots:add(f_cd_slot1, buffer(offset+6,1))
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occupied_slots:add(f_cd_slot2, buffer(offset+6,1))
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occupied_slots:add(f_cd_slot3, buffer(offset+6,1))
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occupied_slots:add(f_cd_slot4, buffer(offset+6,1))
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occupied_slots:add(f_cd_slot5, buffer(offset+6,1))
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occupied_slots:add(f_cd_slot6, buffer(offset+6,1))
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||||
local redundant_slots = cdtree:add(f_cd_slots, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot1, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot2, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot3, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot4, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot5, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot6, buffer(offset+8,1))
|
||||
|
||||
local cd_state = cdtree:add(f_cd_state, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_open, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_err1, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_seeking, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_playback, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_seeking_track, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_loading, buffer(offset+9,1))
|
||||
elseif action == known_actions_names["ENABLE_FUNCTION_RESP"] or
|
||||
action == known_actions_names["DISABLE_FUNCTION_RESP"] then
|
||||
-- Understood apart from a trailing 0x01 of unknown meaning; not flagged.
|
||||
elseif buffer:len() > offset+3 then
|
||||
-- Recognized CD action (initial report 0xf0, TOC 0xf9, track name
|
||||
-- 0xfd, ...) whose payload layout isn't understood yet. Flag just the
|
||||
-- undecoded bytes, not the whole (correctly-named) message.
|
||||
mark_undecoded(subtree, buffer(offset+3))
|
||||
end
|
||||
end
|
||||
|
||||
-- TAPE_DECK source: tape state dump on STATUS_REPORT.
|
||||
local function decode_tape(subtree, buffer, offset, action)
|
||||
if action == known_actions_names["STATUS_REPORT"] then
|
||||
local tapetree = subtree:add(avclanproto, buffer(offset,4), "Device: Tape deck")
|
||||
tapetree:add(f_tape_present, buffer(offset+3,1))
|
||||
|
||||
local tape_state = tapetree:add(f_tape_state, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_seeking_rev, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_err1, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_playback, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_seeking, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_state1, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_random, buffer(offset+4,1))
|
||||
|
||||
local tape_flags = tapetree:add(f_tape_flags, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_stereo, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_dolby, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag1, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag2, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag3, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag4, buffer(offset+5,2))
|
||||
end
|
||||
end
|
||||
|
||||
-- SW source: touch-screen press (action 0x78) with x,y position pairs.
|
||||
local function decode_touch(subtree, buffer, offset, action)
|
||||
if action == known_actions_names["SCREEN_PRESS"] then
|
||||
subtree:add(f_touch_x, buffer(offset+3,1))
|
||||
subtree:add(f_touch_y, buffer(offset+4,1))
|
||||
if buffer:len() > offset+6 then
|
||||
subtree:add(f_touch_x, buffer(offset+5,1)):append_text(" (2)")
|
||||
subtree:add(f_touch_y, buffer(offset+6,1)):append_text(" (2)")
|
||||
end
|
||||
else
|
||||
subtree:add_proto_expert_info(pe_unhandled_msg)
|
||||
end
|
||||
end
|
||||
|
||||
-- Device-state report decoders, keyed by the originating device. For these,
|
||||
-- the from_device determines the payload format; the action (passed through)
|
||||
-- only matters within CD/tape/touch.
|
||||
local device_decoders = {
|
||||
[known_devices_names["TUNER"]] = decode_radio,
|
||||
[known_devices_names["AUDIO_AMP"]] = decode_amp,
|
||||
[known_devices_names["CD"]] = decode_cd,
|
||||
[known_devices_names["CD_CHANGER"]] = decode_cd,
|
||||
[known_devices_names["TAPE_DECK"]] = decode_tape,
|
||||
[known_devices_names["SW"]] = decode_touch,
|
||||
}
|
||||
|
||||
function avclanproto.dissector(buffer, pinfo, tree)
|
||||
local length = buffer:len()
|
||||
if length == 0 then
|
||||
@@ -532,262 +723,33 @@ function avclanproto.dissector(buffer, pinfo, tree)
|
||||
iebusproto.dissector(buffer, pinfo, tree)
|
||||
|
||||
local subtree = tree:add(avclanproto, buffer(7,-1), "AVCLAN message")
|
||||
-- Unicast device-to-device frames carry a leading 0x00 before the from/to
|
||||
-- bytes; skip it so `offset` always points at the `from` byte.
|
||||
local offset = 7
|
||||
if buffer(7,1):uint() == 0 then
|
||||
offset = 8
|
||||
subtree:add(f_from_device, buffer(offset+0,1))
|
||||
subtree:add(f_to_device, buffer(offset+1,1))
|
||||
else
|
||||
subtree:add(f_from_device, buffer(offset+0,1))
|
||||
subtree:add(f_to_device, buffer(offset+1,1))
|
||||
end
|
||||
subtree:add(f_from_device, buffer(offset+0,1))
|
||||
subtree:add(f_to_device, buffer(offset+1,1))
|
||||
|
||||
local from_device = field_from_device().value
|
||||
local to_device = field_to_device().value
|
||||
|
||||
if from_device == known_devices_names["CMD_SW"] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
if to_device == known_devices_names["AUDIO_AMP"] then
|
||||
local amptree = subtree:add(avclanproto, buffer(offset+2,-1), "Device: Audio amplifier control")
|
||||
local param = buffer(offset+3,1)
|
||||
if action == 0x90 then -- VOLUME (BCD)
|
||||
local vol_raw = param:uint()
|
||||
local vol_bcd = bit.rshift(vol_raw, 4) * 10 + bit.band(vol_raw, 0x0F)
|
||||
amptree:add(f_amp_volume, param, vol_bcd):append_text(" (VOLUME)")
|
||||
elseif action == 0x91 then
|
||||
amptree:add(f_amp_balance, param)
|
||||
elseif action == 0x92 then
|
||||
amptree:add(f_amp_fade, param)
|
||||
elseif action == 0x93 then
|
||||
amptree:add(f_amp_bass, param)
|
||||
elseif action == 0x94 then
|
||||
amptree:add(f_amp_mid, param)
|
||||
elseif action == 0x95 then
|
||||
amptree:add(f_amp_treble, param)
|
||||
end
|
||||
end
|
||||
decode_cmd_sw(subtree, buffer, offset, to_device)
|
||||
elseif from_device == known_devices_names["COMMUNICATION v1"] or
|
||||
from_device == known_devices_names["COMMUNICATION v2"] then
|
||||
if to_device == known_devices_names["COMM_CTRL"] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
if action == known_actions_names["ADVERTISE_FUNCTION"] then
|
||||
subtree:add(f_active_device, buffer(offset+3,1))
|
||||
elseif action == known_actions_names["PING_REQ"] then
|
||||
subtree:add(f_ping_count, buffer(offset+3,1))
|
||||
subtree:add_proto_expert_info(pe_ping_req, "Ping request " .. buffer(offset+3,1):uint())
|
||||
elseif known_actions[action] then
|
||||
else
|
||||
subtree:add_proto_expert_info(pe_unhandled_msg)
|
||||
end
|
||||
else
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
end
|
||||
decode_from_comm(subtree, buffer, offset, to_device)
|
||||
elseif from_device == known_devices_names["COMM_CTRL"] then
|
||||
if to_device == known_devices_names["COMMUNICATION v1"] or
|
||||
to_device == known_devices_names["COMMUNICATION v2"] then
|
||||
local action_tree = subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
if action == known_actions_names["PING_RESP"] then
|
||||
subtree:add(f_ping_count, buffer(offset+3,1))
|
||||
subtree:add_proto_expert_info(pe_ping_resp, "Ping response " .. buffer(offset+3,1):uint())
|
||||
elseif action == known_actions_names["LIST_FUNCTIONS_RESP"] then
|
||||
local functions = action_tree:add(f_functions, buffer(offset+3))
|
||||
functions:append_text(" (")
|
||||
for v = 0,(buffer:bytes(offset+3)):len()-1 do
|
||||
if known_devices[buffer(offset+3+v,1):uint()] then
|
||||
functions:append_text(" " .. known_devices[buffer(offset+3+v,1):uint()])
|
||||
else
|
||||
functions:append_text(" UNKNOWN_DEVICE")
|
||||
end
|
||||
end
|
||||
functions:append_text(" ) ")
|
||||
elseif known_actions[action] then
|
||||
else
|
||||
subtree:add_proto_expert_info(pe_unhandled_msg)
|
||||
end
|
||||
elseif to_device == known_devices_names["COMM_CTRL"] then
|
||||
local action_tree = subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
if action == known_actions_names["BACKLIGHT_ADJUST"] then
|
||||
local backlight = subtree:add(f_backlight, buffer(offset+3,1))
|
||||
backlight:append_text(" (" .. math.floor(100*(63 - buffer(offset+3,1):uint())/63) .. ")")
|
||||
end
|
||||
elseif to_device == known_actions_names["LANCHECK_SCAN_REQ"] or
|
||||
to_device == known_actions_names["LANCHECK_REQ"] or
|
||||
to_device == known_actions_names["LANCHECK_END_REQ"] then
|
||||
subtree:add(f_action, buffer(offset+1,1))
|
||||
elseif to_device == 0x00 then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
else
|
||||
subtree:add_proto_expert_info(pe_unhandled_msg)
|
||||
end
|
||||
decode_from_commctrl(subtree, buffer, offset, to_device)
|
||||
elseif to_device == known_devices_names["BEEP_SPEAKERS"] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
if action == known_actions_names["BEEP"] then
|
||||
subtree:add(f_beep_duration, buffer(offset+3,1))
|
||||
else
|
||||
subtree:add_proto_expert_info(pe_unhandled_msg)
|
||||
end
|
||||
decode_beep(subtree, buffer, offset)
|
||||
elseif from_device == known_devices_names["STATUS"] and
|
||||
known_devices[to_device] ~= nil then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
elseif from_device == known_devices_names["TUNER"] then
|
||||
elseif device_decoders[from_device] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local radiotree = subtree:add(avclanproto, buffer(offset,10), "Device: Radio")
|
||||
radiotree:add_le(f_radio_active, buffer(offset+3,1))
|
||||
radiotree:add_le(f_radio_status, buffer(offset+4,1))
|
||||
radiotree:add_le(f_radio_band, buffer(offset+5,1))
|
||||
radiotree:add(f_radio_bandnumber, buffer(offset+5,1))
|
||||
local freqtree = radiotree:add(f_radio_freq, buffer(offset+6,2))
|
||||
local radio_band = buffer(offset+5,1):uint()
|
||||
local freq = field_radio_freq().value
|
||||
if bit.band(radio_band, 0xF0) == 0x80 then
|
||||
freqtree:append_text(" (" .. 87.5+(freq-1)*.05 .. " MHz)")
|
||||
elseif bit.band(radio_band, 0xF0) == 0xC0 then
|
||||
freqtree:append_text(" (" .. 153+(freq-1)*1 .. " kHz)")
|
||||
elseif bit.band(radio_band, 0xF0) == 0x00 then
|
||||
freqtree:append_text(" (" .. 522+(freq-1)*9 .. " kHz)")
|
||||
end
|
||||
|
||||
local flags = radiotree:add(f_radio_flags, buffer(15,1))
|
||||
flags:add(f_radioflag_st, buffer(15,1))
|
||||
flags:add(f_radioflag_ta, buffer(15,1))
|
||||
flags:add(f_radioflag_reg, buffer(15,1))
|
||||
flags:add(f_radioflag_af, buffer(15,1))
|
||||
radiotree:add(f_radio_flags2, buffer(16,1))
|
||||
elseif from_device == known_devices_names["AUDIO_AMP"] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local amptree = subtree:add(avclanproto, buffer(offset,10), "Device: Audio amplifier")
|
||||
|
||||
local vol_raw = buffer(offset+4,1):uint()
|
||||
local vol_bcd = bit.rshift(vol_raw, 4) * 10 + bit.band(vol_raw, 0x0F)
|
||||
amptree:add(f_amp_volume, buffer(offset+4,1), vol_bcd)
|
||||
amptree:add(f_amp_balance, buffer(offset+5,1))
|
||||
amptree:add(f_amp_fade, buffer(offset+6,1))
|
||||
amptree:add(f_amp_bass, buffer(offset+7,1))
|
||||
amptree:add(f_amp_mid, buffer(offset+8,1))
|
||||
amptree:add(f_amp_treble, buffer(offset+9,1))
|
||||
elseif from_device == known_devices_names["CD"] or
|
||||
from_device == known_devices_names["CD_CHANGER"] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
|
||||
if action == known_actions_names["STATUS_REPORT"] or
|
||||
action == known_actions_names["PLAYBACK_REPORT"] then
|
||||
local cdtree = subtree:add(avclanproto, buffer(offset,9), "Device: CD player")
|
||||
local cd_slots = cdtree:add(f_cd_slots, buffer(offset+3,1))
|
||||
cd_slots:add(f_cd_slot1, buffer(offset+3,1))
|
||||
cd_slots:add(f_cd_slot2, buffer(offset+3,1))
|
||||
cd_slots:add(f_cd_slot3, buffer(offset+3,1))
|
||||
cd_slots:add(f_cd_slot4, buffer(offset+3,1))
|
||||
cd_slots:add(f_cd_slot5, buffer(offset+3,1))
|
||||
cd_slots:add(f_cd_slot6, buffer(offset+3,1))
|
||||
|
||||
local cd_state = cdtree:add(f_cd_state, buffer(offset+4,1))
|
||||
cd_state:add(f_cd_open, buffer(offset+4,1))
|
||||
cd_state:add(f_cd_err1, buffer(offset+4,1))
|
||||
cd_state:add(f_cd_seeking, buffer(offset+4,1))
|
||||
cd_state:add(f_cd_playback, buffer(offset+4,1))
|
||||
cd_state:add(f_cd_seeking_track, buffer(offset+4,1))
|
||||
cd_state:add(f_cd_loading, buffer(offset+4,1))
|
||||
local cd_status = cdtree:add(avclanproto, buffer(offset+5,-1), "")
|
||||
cd_status:add(f_cd_disc, buffer(offset+5,1))
|
||||
cd_status:add(f_cd_track, buffer(offset+6,1))
|
||||
cd_status:add(f_cd_min, buffer(offset+7,1))
|
||||
cd_status:add(f_cd_sec, buffer(offset+8,1))
|
||||
cd_status:append_text("Disc " .. field_cd_disc().value .. ", ")
|
||||
cd_status:append_text("track " .. tostring(buffer(offset+6,1)):gsub("(.)(.)", "%1%2") .. ", ")
|
||||
cd_status:append_text("time " .. tostring(buffer(offset+7,1)):gsub("0x(.)(.)", "%1%2") .. ":")
|
||||
cd_status:append_text(tostring(buffer(offset+8,1)):gsub("(.)(.)", "%1%2"))
|
||||
local cd_flags = cdtree:add(f_cd_flags, buffer(offset+9,1))
|
||||
cd_flags:add(f_cd_flag_disk_random, buffer(offset+9,1))
|
||||
cd_flags:add(f_cd_flag_random, buffer(offset+9,1))
|
||||
cd_flags:add(f_cd_flag_disk_repeat, buffer(offset+9,1))
|
||||
cd_flags:add(f_cd_flag_repeat, buffer(offset+9,1))
|
||||
cd_flags:add(f_cd_flag_disk_scan, buffer(offset+9,1))
|
||||
cd_flags:add(f_cd_flag_scan, buffer(offset+9,1))
|
||||
elseif action == known_actions_names["LOADING_STATUS_REPORT"] or
|
||||
action == known_actions_names["LOADING_RESPONSE2"] then
|
||||
local cdtree = subtree:add(avclanproto, buffer(offset,9), "Device: CD player")
|
||||
local available_slots = cdtree:add(f_cd_slots, buffer(offset+4,1))
|
||||
available_slots:add(f_cd_slot1, buffer(offset+4,1))
|
||||
available_slots:add(f_cd_slot2, buffer(offset+4,1))
|
||||
available_slots:add(f_cd_slot3, buffer(offset+4,1))
|
||||
available_slots:add(f_cd_slot4, buffer(offset+4,1))
|
||||
available_slots:add(f_cd_slot5, buffer(offset+4,1))
|
||||
available_slots:add(f_cd_slot6, buffer(offset+4,1))
|
||||
|
||||
local occupied_slots = cdtree:add(f_cd_slots, buffer(offset+6,1))
|
||||
occupied_slots:add(f_cd_slot1, buffer(offset+6,1))
|
||||
occupied_slots:add(f_cd_slot2, buffer(offset+6,1))
|
||||
occupied_slots:add(f_cd_slot3, buffer(offset+6,1))
|
||||
occupied_slots:add(f_cd_slot4, buffer(offset+6,1))
|
||||
occupied_slots:add(f_cd_slot5, buffer(offset+6,1))
|
||||
occupied_slots:add(f_cd_slot6, buffer(offset+6,1))
|
||||
|
||||
local redundant_slots = cdtree:add(f_cd_slots, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot1, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot2, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot3, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot4, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot5, buffer(offset+8,1))
|
||||
redundant_slots:add(f_cd_slot6, buffer(offset+8,1))
|
||||
|
||||
local cd_state = cdtree:add(f_cd_state, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_open, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_err1, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_seeking, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_playback, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_seeking_track, buffer(offset+9,1))
|
||||
cd_state:add(f_cd_loading, buffer(offset+9,1))
|
||||
elseif action == known_actions_names["ENABLE_FUNCTION_RESP"] or
|
||||
action == known_actions_names["DISABLE_FUNCTION_RESP"] then
|
||||
elseif buffer:len() > offset+3 then
|
||||
-- Recognized CD action (initial report 0xf0, TOC 0xf9, track name
|
||||
-- 0xfd, ...) whose payload layout isn't understood yet. Flag just the
|
||||
-- undecoded bytes, not the whole (correctly-named) message.
|
||||
mark_undecoded(subtree, buffer(offset+3))
|
||||
end
|
||||
elseif from_device == known_devices_names["TAPE_DECK"] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
|
||||
if action == known_actions_names["STATUS_REPORT"] then
|
||||
local tapetree = subtree:add(avclanproto, buffer(offset,4), "Device: Tape deck")
|
||||
tapetree:add(f_tape_present, buffer(offset+3,1))
|
||||
|
||||
local tape_state = tapetree:add(f_tape_state, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_seeking_rev, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_err1, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_playback, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_seeking, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_state1, buffer(offset+4,1))
|
||||
tape_state:add(f_tape_random, buffer(offset+4,1))
|
||||
|
||||
local tape_flags = tapetree:add(f_tape_flags, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_stereo, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_dolby, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag1, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag2, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag3, buffer(offset+5,2))
|
||||
tape_flags:add(f_tape_flag4, buffer(offset+5,2))
|
||||
end
|
||||
elseif from_device == known_devices_names["SW"] then
|
||||
subtree:add(f_action, buffer(offset+2,1))
|
||||
local action = field_action().value
|
||||
if action == known_actions_names["SCREEN_PRESS"] then
|
||||
subtree:add(f_touch_x, buffer(offset+3,1))
|
||||
subtree:add(f_touch_y, buffer(offset+4,1))
|
||||
if buffer:len() > offset+6 then
|
||||
subtree:add(f_touch_x, buffer(offset+5,1)):append_text(" (2)")
|
||||
subtree:add(f_touch_y, buffer(offset+6,1)):append_text(" (2)")
|
||||
end
|
||||
else
|
||||
subtree:add_proto_expert_info(pe_unhandled_msg)
|
||||
end
|
||||
device_decoders[from_device](subtree, buffer, offset, field_action().value)
|
||||
else
|
||||
subtree:add_proto_expert_info(pe_unhandled_msg)
|
||||
end
|
||||
|
||||
Reference in New Issue
Block a user