forked from osmocom/wireshark
8ab6d8ba82
Change-Id: I853bc068cfca477c2ec5968d8b9a17873ec8011c Reviewed-on: https://code.wireshark.org/review/18533 Reviewed-by: Anders Broman <a.broman58@gmail.com>
1332 lines
51 KiB
C
1332 lines
51 KiB
C
/* packet-usb-audio.c
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*
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* usb audio dissector
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* Tomasz Mon 2012
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* the parsing of audio-specific descriptors is based on
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USB Device Class Definition for Audio Devices, Release 2.0 and
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USB Audio Device Class Specification for Basic Audio Devices, Release 1.0 */
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include <epan/reassemble.h>
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#include "packet-usb.h"
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/* XXX - we use the same macro for mpeg sections,
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can we put this in a common include file? */
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#define USB_AUDIO_BCD44_TO_DEC(x) ((((x)&0xf0) >> 4) * 10 + ((x)&0x0f))
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void proto_register_usb_audio(void);
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void proto_reg_handoff_usb_audio(void);
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/* protocols and header fields */
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static int proto_usb_audio = -1;
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static int hf_midi_cable_number = -1;
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static int hf_midi_code_index = -1;
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static int hf_midi_event = -1;
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static int hf_ac_if_desc_subtype = -1;
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static int hf_ac_if_hdr_ver = -1;
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static int hf_ac_if_hdr_total_len = -1;
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static int hf_ac_if_hdr_bInCollection = -1;
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static int hf_ac_if_hdr_if_num = -1;
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static int hf_ac_if_input_terminalid = -1;
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static int hf_ac_if_input_terminaltype = -1;
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static int hf_ac_if_input_assocterminal = -1;
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static int hf_ac_if_input_nrchannels = -1;
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static int hf_ac_if_input_channelconfig = -1;
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static int hf_ac_if_input_channelconfig_d0 = -1;
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static int hf_ac_if_input_channelconfig_d1 = -1;
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static int hf_ac_if_input_channelconfig_d2 = -1;
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static int hf_ac_if_input_channelconfig_d3 = -1;
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static int hf_ac_if_input_channelconfig_d4 = -1;
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static int hf_ac_if_input_channelconfig_d5 = -1;
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static int hf_ac_if_input_channelconfig_d6 = -1;
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static int hf_ac_if_input_channelconfig_d7 = -1;
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static int hf_ac_if_input_channelconfig_d8 = -1;
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static int hf_ac_if_input_channelconfig_d9 = -1;
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static int hf_ac_if_input_channelconfig_d10 = -1;
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static int hf_ac_if_input_channelconfig_d11 = -1;
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static int hf_ac_if_input_channelconfig_rsv = -1;
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static int hf_ac_if_input_channelnames = -1;
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static int hf_ac_if_input_terminal = -1;
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static int hf_ac_if_output_terminalid = -1;
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static int hf_ac_if_output_terminaltype = -1;
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static int hf_ac_if_output_assocterminal = -1;
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static int hf_ac_if_output_sourceid = -1;
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static int hf_ac_if_output_terminal = -1;
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static int hf_ac_if_fu_unitid = -1;
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static int hf_ac_if_fu_sourceid = -1;
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static int hf_ac_if_fu_controlsize = -1;
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static int hf_ac_if_fu_controls = -1;
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static int hf_ac_if_fu_control = -1;
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static int hf_ac_if_fu_controls_d0 = -1;
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static int hf_ac_if_fu_controls_d1 = -1;
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static int hf_ac_if_fu_controls_d2 = -1;
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static int hf_ac_if_fu_controls_d3 = -1;
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static int hf_ac_if_fu_controls_d4 = -1;
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static int hf_ac_if_fu_controls_d5 = -1;
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static int hf_ac_if_fu_controls_d6 = -1;
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static int hf_ac_if_fu_controls_d7 = -1;
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static int hf_ac_if_fu_controls_d8 = -1;
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static int hf_ac_if_fu_controls_d9 = -1;
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static int hf_ac_if_fu_controls_rsv = -1;
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static int hf_ac_if_fu_ifeature = -1;
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static int hf_ac_if_mu_unitid = -1;
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static int hf_ac_if_mu_nrinpins = -1;
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static int hf_ac_if_mu_sourceid = -1;
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static int hf_ac_if_mu_nrchannels = -1;
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static int hf_ac_if_mu_channelconfig = -1;
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static int hf_ac_if_mu_channelconfig_d0 = -1;
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static int hf_ac_if_mu_channelconfig_d1 = -1;
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static int hf_ac_if_mu_channelconfig_d2 = -1;
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static int hf_ac_if_mu_channelconfig_d3 = -1;
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static int hf_ac_if_mu_channelconfig_d4 = -1;
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static int hf_ac_if_mu_channelconfig_d5 = -1;
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static int hf_ac_if_mu_channelconfig_d6 = -1;
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static int hf_ac_if_mu_channelconfig_d7 = -1;
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static int hf_ac_if_mu_channelconfig_d8 = -1;
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static int hf_ac_if_mu_channelconfig_d9 = -1;
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static int hf_ac_if_mu_channelconfig_d10 = -1;
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static int hf_ac_if_mu_channelconfig_d11 = -1;
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static int hf_ac_if_mu_channelconfig_rsv = -1;
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static int hf_ac_if_mu_channelnames = -1;
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static int hf_ac_if_mu_controls = -1;
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static int hf_ac_if_mu_imixer = -1;
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static int hf_as_if_desc_subtype = -1;
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static int hf_as_if_gen_term_id = -1;
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static int hf_as_if_gen_delay = -1;
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static int hf_as_if_gen_format = -1;
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static int hf_as_if_ft_formattype = -1;
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static int hf_as_if_ft_maxbitrate = -1;
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static int hf_as_if_ft_nrchannels = -1;
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static int hf_as_if_ft_subframesize = -1;
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static int hf_as_if_ft_bitresolution = -1;
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static int hf_as_if_ft_samplesperframe = -1;
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static int hf_as_if_ft_samfreqtype = -1;
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static int hf_as_if_ft_lowersamfreq = -1;
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static int hf_as_if_ft_uppersamfreq = -1;
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static int hf_as_if_ft_samfreq = -1;
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static int hf_as_ep_desc_subtype = -1;
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static reassembly_table midi_data_reassembly_table;
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static gint ett_usb_audio = -1;
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static gint ett_usb_audio_desc = -1;
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static gint ett_ac_if_fu_controls = -1;
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static gint ett_ac_if_fu_controls0 = -1;
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static gint ett_ac_if_fu_controls1 = -1;
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static gint ett_ac_if_input_channelconfig = -1;
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static gint ett_ac_if_mu_channelconfig = -1;
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static dissector_handle_t sysex_handle;
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#define AUDIO_IF_SUBCLASS_UNDEFINED 0x00
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#define AUDIO_IF_SUBCLASS_AUDIOCONTROL 0x01
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#define AUDIO_IF_SUBCLASS_AUDIOSTREAMING 0x02
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#define AUDIO_IF_SUBCLASS_MIDISTREAMING 0x03
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#if 0
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static const value_string usb_audio_subclass_vals[] = {
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{AUDIO_IF_SUBCLASS_UNDEFINED, "SUBCLASS_UNDEFINED"},
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{AUDIO_IF_SUBCLASS_AUDIOCONTROL, "AUDIOCONSTROL"},
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{AUDIO_IF_SUBCLASS_AUDIOSTREAMING, "AUDIOSTREAMING"},
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{AUDIO_IF_SUBCLASS_MIDISTREAMING, "MIDISTREAMING"},
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{0, NULL}
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};
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#endif
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static const value_string code_index_vals[] = {
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{ 0x0, "Miscellaneous (Reserved)" },
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{ 0x1, "Cable events (Reserved)" },
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{ 0x2, "Two-byte System Common message" },
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{ 0x3, "Three-byte System Common message" },
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{ 0x4, "SysEx starts or continues" },
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{ 0x5, "SysEx ends with following single byte/Single-byte System Common Message" },
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{ 0x6, "SysEx ends with following two bytes" },
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{ 0x7, "SysEx ends with following three bytes" },
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{ 0x8, "Note-off" },
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{ 0x9, "Note-on" },
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{ 0xA, "Poly-KeyPress" },
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{ 0xB, "Control Change" },
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{ 0xC, "Program Change" },
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{ 0xD, "Channel Pressure" },
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{ 0xE, "PitchBend Change" },
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{ 0xF, "Single Byte" },
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{ 0, NULL }
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};
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/* USB audio specification, section A.8 */
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#define CS_INTERFACE 0x24
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#define CS_ENDPOINT 0x25
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static const value_string aud_descriptor_type_vals[] = {
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{CS_INTERFACE, "audio class interface"},
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{CS_ENDPOINT, "audio class endpoint"},
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{0,NULL}
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};
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static value_string_ext aud_descriptor_type_vals_ext =
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VALUE_STRING_EXT_INIT(aud_descriptor_type_vals);
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#define AC_SUBTYPE_HEADER 0x01
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#define AC_SUBTYPE_INPUT_TERMINAL 0x02
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#define AC_SUBTYPE_OUTPUT_TERMINAL 0x03
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#define AC_SUBTYPE_MIXER_UNIT 0x04
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#define AC_SUBTYPE_SELECTOR_UNIT 0x05
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#define AC_SUBTYPE_FEATURE_UNIT 0x06
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static const value_string ac_subtype_vals[] = {
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{AC_SUBTYPE_HEADER, "Header Descriptor"},
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{AC_SUBTYPE_INPUT_TERMINAL, "Input terminal descriptor"},
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{AC_SUBTYPE_OUTPUT_TERMINAL, "Output terminal descriptor"},
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{AC_SUBTYPE_MIXER_UNIT, "Mixer unit descriptor"},
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{AC_SUBTYPE_SELECTOR_UNIT, "Selector unit descriptor"},
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{AC_SUBTYPE_FEATURE_UNIT, "Feature unit descriptor"},
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{0,NULL}
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};
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static value_string_ext ac_subtype_vals_ext =
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VALUE_STRING_EXT_INIT(ac_subtype_vals);
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#define AS_SUBTYPE_GENERAL 0x01
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#define AS_SUBTYPE_FORMAT_TYPE 0x02
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#define AS_SUBTYPE_ENCODER 0x03
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static const value_string as_subtype_vals[] = {
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{AS_SUBTYPE_GENERAL, "General AS Descriptor"},
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{AS_SUBTYPE_FORMAT_TYPE, "Format type descriptor"},
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{AS_SUBTYPE_ENCODER, "Encoder descriptor"},
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{0,NULL}
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};
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static value_string_ext as_subtype_vals_ext =
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VALUE_STRING_EXT_INIT(as_subtype_vals);
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/* From http://www.usb.org/developers/docs/devclass_docs/termt10.pdf */
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static const value_string terminal_types_vals[] = {
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/* USB Terminal Types */
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{0x0100, "USB Undefined"},
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{0x0101, "USB Streaming"},
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{0x01FF, "USB vendor specific"},
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/* Input Terminal Tyoes */
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{0x0200, "Input Undefined"},
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{0x0201, "Microphone"},
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{0x0202, "Desktop Microphone"},
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{0x0203, "Personal microphone"},
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{0x0204, "Omni-directional icrophone"},
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{0x0205, "Microphone array"},
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{0x0206, "Processing microphone array"},
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{0x0300, "Output Undefined"},
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{0x0301, "Speaker"},
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{0x0302, "Headphones"},
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{0x0303, "Head Mounted Display Audio"},
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{0x0304, "Desktop speaker"},
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{0x0305, "Room speaker"},
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{0x0306, "Communication speaker"},
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{0x0307, "Low frequency effects speaker"},
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/* Bi-directional Terminal Types */
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{0x0400, "Bi-directional Undefined"},
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{0x0401, "Handset"},
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{0x0402, "Headset"},
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{0x0403, "Speakerphone, no echoreduction"},
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{0x0404, "Echo-suppressing speakerphone"},
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{0x0405, "Echo-canceling speakerphone"},
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/* Telephony Terminal Types */
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{0x0500, "Telephony Undefined"},
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{0x0501, "Phone line"},
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{0x0502, "Telephone"},
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{0x0503, "Down Line Pone"},
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/* External Terminal Types */
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{0x0600, "External Undefined"},
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{0x0601, "Analog connector"},
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{0x0602, "Digital audio interface"},
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{0x0603, "Line connector"},
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{0x0604, "Legacy audio connector"},
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{0x0605, "S/PDIF interface"},
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{0x0606, "1394 DA stream"},
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{0x0607, "1394 DV stream soudtrack"},
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/* Embedded Function Terminal Types */
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{0x0700, "Embedded Undefined"},
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{0x0701, "Level Calibration Noise Source"},
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{0x0702, "Equalization Noise"},
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{0x0703, "CD player"},
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{0x0704, "DAT"},
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{0x0705, "DCC"},
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{0x0706, "MiniDisk"},
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{0x0707, "Analog Tape"},
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{0x0708, "Phonograph"},
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{0x0709, "VCR Audio"},
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{0x070A, "Video Disc Audio"},
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{0x070B, "DVD Audio"},
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{0x070C, "TV Tuner Audio"},
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{0x070D, "Satellite Receiver Audio"},
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{0x070E, "cable Tuner Audio"},
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{0x070F, "DSS Audio"},
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{0x0710, "Radio Receiver"},
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{0x0711, "Radio Transmitter"},
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{0x0712, "Multi-track Recorder"},
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{0x0713, "Synthesizer"},
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{0,NULL}
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};
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static value_string_ext terminal_types_vals_ext =
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VALUE_STRING_EXT_INIT(terminal_types_vals);
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typedef struct _audio_conv_info_t {
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/* the major version of the USB audio class specification,
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taken from the AC header descriptor */
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guint8 ver_major;
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} audio_conv_info_t;
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static int hf_sysex_msg_fragments = -1;
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static int hf_sysex_msg_fragment = -1;
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static int hf_sysex_msg_fragment_overlap = -1;
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static int hf_sysex_msg_fragment_overlap_conflicts = -1;
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static int hf_sysex_msg_fragment_multiple_tails = -1;
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static int hf_sysex_msg_fragment_too_long_fragment = -1;
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static int hf_sysex_msg_fragment_error = -1;
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static int hf_sysex_msg_fragment_count = -1;
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static int hf_sysex_msg_reassembled_in = -1;
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static int hf_sysex_msg_reassembled_length = -1;
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static int hf_sysex_msg_reassembled_data = -1;
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static gint ett_sysex_msg_fragment = -1;
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static gint ett_sysex_msg_fragments = -1;
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static expert_field ei_usb_audio_undecoded = EI_INIT;
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static const fragment_items sysex_msg_frag_items = {
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/* Fragment subtrees */
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&ett_sysex_msg_fragment,
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&ett_sysex_msg_fragments,
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/* Fragment fields */
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&hf_sysex_msg_fragments,
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&hf_sysex_msg_fragment,
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&hf_sysex_msg_fragment_overlap,
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&hf_sysex_msg_fragment_overlap_conflicts,
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&hf_sysex_msg_fragment_multiple_tails,
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&hf_sysex_msg_fragment_too_long_fragment,
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&hf_sysex_msg_fragment_error,
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&hf_sysex_msg_fragment_count,
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/* Reassembled in field */
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&hf_sysex_msg_reassembled_in,
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/* Reassembled length field */
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&hf_sysex_msg_reassembled_length,
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&hf_sysex_msg_reassembled_data,
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/* Tag */
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"Message fragments"
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};
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static inline gboolean
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is_sysex_code(guint8 code)
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{
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return (code == 0x04 || code == 0x05 || code == 0x06 || code == 0x07);
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}
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static gboolean
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is_last_sysex_packet_in_tvb(tvbuff_t *tvb, gint offset)
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{
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gboolean last = TRUE;
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gint length = tvb_reported_length(tvb);
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offset += 4;
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while (offset < length)
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{
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guint8 code = tvb_get_guint8(tvb, offset);
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code &= 0x0F;
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if (is_sysex_code(code))
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{
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last = FALSE;
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break;
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}
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offset += 4;
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}
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return last;
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}
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static void
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dissect_usb_midi_event(tvbuff_t *tvb, packet_info *pinfo,
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proto_tree *usb_audio_tree, proto_tree *parent_tree,
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gint offset)
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{
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guint8 code;
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guint8 cable;
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gboolean save_fragmented;
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proto_tree *tree = NULL;
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col_set_str(pinfo->cinfo, COL_INFO, "USB-MIDI Event Packets");
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code = tvb_get_guint8(tvb, offset);
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cable = (code & 0xF0) >> 4;
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code &= 0x0F;
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if (parent_tree)
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{
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proto_item *ti;
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ti = proto_tree_add_protocol_format(usb_audio_tree, proto_usb_audio, tvb, offset, 4, "USB Midi Event Packet");
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tree = proto_item_add_subtree(ti, ett_usb_audio);
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proto_tree_add_item(tree, hf_midi_cable_number, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(tree, hf_midi_code_index, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(tree, hf_midi_event, tvb, offset+1, 3, ENC_BIG_ENDIAN);
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}
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save_fragmented = pinfo->fragmented;
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/* Reassemble SysEx commands */
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if (is_sysex_code(code))
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{
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tvbuff_t* new_tvb = NULL;
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fragment_head *frag_sysex_msg = NULL;
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pinfo->fragmented = TRUE;
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if (code == 0x04)
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{
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frag_sysex_msg = fragment_add_seq_next(&midi_data_reassembly_table,
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tvb, offset+1,
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pinfo,
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cable, /* ID for fragments belonging together */
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NULL,
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3,
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TRUE);
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}
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else
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{
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frag_sysex_msg = fragment_add_seq_next(&midi_data_reassembly_table,
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tvb, offset+1,
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|
pinfo,
|
|
cable, /* ID for fragments belonging together */
|
|
NULL,
|
|
(gint)(code - 4),
|
|
FALSE);
|
|
}
|
|
|
|
if (is_last_sysex_packet_in_tvb(tvb, offset))
|
|
{
|
|
new_tvb = process_reassembled_data(tvb, offset+1, pinfo,
|
|
"Reassembled Message", frag_sysex_msg, &sysex_msg_frag_items,
|
|
NULL, usb_audio_tree);
|
|
|
|
if (code != 0x04) { /* Reassembled */
|
|
col_append_str(pinfo->cinfo, COL_INFO,
|
|
" (SysEx Reassembled)");
|
|
} else { /* Not last packet of reassembled Short Message */
|
|
col_append_str(pinfo->cinfo, COL_INFO,
|
|
" (SysEx fragment)");
|
|
}
|
|
|
|
if (new_tvb)
|
|
{
|
|
call_dissector(sysex_handle, new_tvb, pinfo, parent_tree);
|
|
}
|
|
}
|
|
}
|
|
|
|
pinfo->fragmented = save_fragmented;
|
|
}
|
|
|
|
|
|
/* dissect the body of an AC interface header descriptor
|
|
return the number of bytes dissected (which may be smaller than the
|
|
body's length) */
|
|
static gint
|
|
dissect_ac_if_hdr_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_,
|
|
proto_tree *tree, usb_conv_info_t *usb_conv_info)
|
|
{
|
|
gint offset_start;
|
|
guint16 bcdADC;
|
|
guint8 ver_major;
|
|
double ver;
|
|
guint8 if_in_collection, i;
|
|
audio_conv_info_t *audio_conv_info;
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
bcdADC = tvb_get_letohs(tvb, offset);
|
|
ver_major = USB_AUDIO_BCD44_TO_DEC(bcdADC>>8);
|
|
ver = ver_major + USB_AUDIO_BCD44_TO_DEC(bcdADC&0xFF) / 100.0;
|
|
|
|
proto_tree_add_double_format_value(tree, hf_ac_if_hdr_ver,
|
|
tvb, offset, 2, ver, "%2.2f", ver);
|
|
audio_conv_info = (audio_conv_info_t *)usb_conv_info->class_data;
|
|
if(!audio_conv_info) {
|
|
audio_conv_info = wmem_new(wmem_file_scope(), audio_conv_info_t);
|
|
usb_conv_info->class_data = audio_conv_info;
|
|
usb_conv_info->class_data_type = USB_CONV_AUDIO;
|
|
/* XXX - set reasonable default values for all components
|
|
that are not filled in by this function */
|
|
} else if (usb_conv_info->class_data_type != USB_CONV_AUDIO) {
|
|
/* Don't dissect if another USB type is in the conversation */
|
|
return 0;
|
|
}
|
|
audio_conv_info->ver_major = ver_major;
|
|
offset += 2;
|
|
|
|
/* version 1 refers to the Basic Audio Device specification,
|
|
version 2 is the Audio Device class specification, see above */
|
|
if (ver_major==1) {
|
|
proto_tree_add_item(tree, hf_ac_if_hdr_total_len,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
if_in_collection = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(tree, hf_ac_if_hdr_bInCollection,
|
|
tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset++;
|
|
|
|
for (i=0; i<if_in_collection; i++) {
|
|
proto_tree_add_item(tree, hf_ac_if_hdr_if_num,
|
|
tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset++;
|
|
}
|
|
}
|
|
|
|
return offset-offset_start;
|
|
}
|
|
|
|
static gint
|
|
dissect_ac_if_input_terminal(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_,
|
|
proto_tree *tree, usb_conv_info_t *usb_conv_info _U_)
|
|
{
|
|
gint offset_start;
|
|
|
|
static const int *input_channelconfig[] = {
|
|
&hf_ac_if_input_channelconfig_d0,
|
|
&hf_ac_if_input_channelconfig_d1,
|
|
&hf_ac_if_input_channelconfig_d2,
|
|
&hf_ac_if_input_channelconfig_d3,
|
|
&hf_ac_if_input_channelconfig_d4,
|
|
&hf_ac_if_input_channelconfig_d5,
|
|
&hf_ac_if_input_channelconfig_d6,
|
|
&hf_ac_if_input_channelconfig_d7,
|
|
&hf_ac_if_input_channelconfig_d8,
|
|
&hf_ac_if_input_channelconfig_d9,
|
|
&hf_ac_if_input_channelconfig_d10,
|
|
&hf_ac_if_input_channelconfig_d11,
|
|
&hf_ac_if_input_channelconfig_rsv,
|
|
NULL
|
|
};
|
|
|
|
offset_start = offset;
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_input_terminalid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_input_terminaltype, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_input_assocterminal, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_input_nrchannels, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_input_channelconfig, ett_ac_if_input_channelconfig, input_channelconfig, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_input_channelnames, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_input_terminal, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
return offset-offset_start;
|
|
}
|
|
|
|
static gint
|
|
dissect_ac_if_output_terminal(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_,
|
|
proto_tree *tree, usb_conv_info_t *usb_conv_info _U_)
|
|
{
|
|
gint offset_start;
|
|
offset_start = offset;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_output_terminalid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_output_terminaltype, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_output_assocterminal, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_output_sourceid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_output_terminal, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
return offset-offset_start;
|
|
}
|
|
|
|
static gint
|
|
dissect_ac_if_feature_unit(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_,
|
|
proto_tree *tree, usb_conv_info_t *usb_conv_info _U_)
|
|
{
|
|
gint offset_start;
|
|
guint8 controlsize;
|
|
proto_tree *bitmap_tree;
|
|
proto_item *ti;
|
|
|
|
static const int *fu_controls0[] = {
|
|
&hf_ac_if_fu_controls_d0,
|
|
&hf_ac_if_fu_controls_d1,
|
|
&hf_ac_if_fu_controls_d2,
|
|
&hf_ac_if_fu_controls_d3,
|
|
&hf_ac_if_fu_controls_d4,
|
|
&hf_ac_if_fu_controls_d5,
|
|
&hf_ac_if_fu_controls_d6,
|
|
&hf_ac_if_fu_controls_d7,
|
|
NULL };
|
|
|
|
static const int *fu_controls1[] = {
|
|
&hf_ac_if_fu_controls_d8,
|
|
&hf_ac_if_fu_controls_d9,
|
|
&hf_ac_if_fu_controls_rsv,
|
|
NULL };
|
|
|
|
offset_start = offset;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_fu_unitid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_fu_sourceid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_fu_controlsize, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
controlsize = tvb_get_guint8(tvb, offset) + 1;
|
|
offset += 1;
|
|
|
|
ti = proto_tree_add_item(tree, hf_ac_if_fu_controls, tvb, offset, controlsize, ENC_NA);
|
|
bitmap_tree = proto_item_add_subtree(ti, ett_ac_if_fu_controls);
|
|
|
|
proto_tree_add_bitmask(bitmap_tree, tvb, offset, hf_ac_if_fu_control, ett_ac_if_fu_controls0, fu_controls0, ENC_LITTLE_ENDIAN);
|
|
|
|
if(controlsize >= 1){
|
|
proto_tree_add_bitmask(bitmap_tree, tvb, offset + 1, hf_ac_if_fu_control, ett_ac_if_fu_controls1, fu_controls1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
|
|
offset += controlsize;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_fu_ifeature, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
return offset-offset_start;
|
|
}
|
|
|
|
static gint
|
|
dissect_ac_if_mixed_unit(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_,
|
|
proto_tree *tree, usb_conv_info_t *usb_conv_info _U_)
|
|
{
|
|
gint offset_start;
|
|
guint8 nrinpins;
|
|
|
|
static const int *mu_channelconfig[] = {
|
|
&hf_ac_if_mu_channelconfig_d0,
|
|
&hf_ac_if_mu_channelconfig_d1,
|
|
&hf_ac_if_mu_channelconfig_d2,
|
|
&hf_ac_if_mu_channelconfig_d3,
|
|
&hf_ac_if_mu_channelconfig_d4,
|
|
&hf_ac_if_mu_channelconfig_d5,
|
|
&hf_ac_if_mu_channelconfig_d6,
|
|
&hf_ac_if_mu_channelconfig_d7,
|
|
&hf_ac_if_mu_channelconfig_d8,
|
|
&hf_ac_if_mu_channelconfig_d9,
|
|
&hf_ac_if_mu_channelconfig_d10,
|
|
&hf_ac_if_mu_channelconfig_d11,
|
|
&hf_ac_if_mu_channelconfig_rsv,
|
|
NULL
|
|
};
|
|
|
|
offset_start = offset;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_mu_unitid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_mu_nrinpins, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
nrinpins = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
|
|
while(nrinpins){
|
|
proto_tree_add_item(tree, hf_ac_if_mu_sourceid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
nrinpins--;
|
|
offset += 1;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_mu_nrchannels, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_mu_channelconfig, ett_ac_if_mu_channelconfig, mu_channelconfig, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_mu_channelnames, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_mu_controls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_ac_if_mu_imixer, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
return offset-offset_start;
|
|
}
|
|
|
|
static gint
|
|
dissect_as_if_general_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_,
|
|
proto_tree *tree, usb_conv_info_t *usb_conv_info)
|
|
{
|
|
audio_conv_info_t *audio_conv_info;
|
|
gint offset_start;
|
|
|
|
/* the caller has already checked that usb_conv_info!=NULL */
|
|
audio_conv_info = (audio_conv_info_t *)usb_conv_info->class_data;
|
|
if (!audio_conv_info)
|
|
return 0;
|
|
|
|
offset_start = offset;
|
|
|
|
if (audio_conv_info->ver_major==1) {
|
|
proto_tree_add_item(tree, hf_as_if_gen_term_id,
|
|
tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset++;
|
|
proto_tree_add_item(tree, hf_as_if_gen_delay,
|
|
tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset++;
|
|
proto_tree_add_item(tree, hf_as_if_gen_format,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
}
|
|
|
|
return offset-offset_start;
|
|
}
|
|
|
|
static gint
|
|
dissect_as_if_format_type_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_,
|
|
proto_tree *tree, usb_conv_info_t *usb_conv_info)
|
|
{
|
|
audio_conv_info_t *audio_conv_info;
|
|
gint offset_start;
|
|
guint8 SamFreqType;
|
|
guint8 format_type;
|
|
|
|
/* the caller has already checked that usb_conv_info!=NULL */
|
|
audio_conv_info = (audio_conv_info_t *)usb_conv_info->class_data;
|
|
if (!audio_conv_info)
|
|
return 0;
|
|
|
|
offset_start = offset;
|
|
|
|
proto_tree_add_item(tree, hf_as_if_ft_formattype, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
format_type = tvb_get_guint8(tvb, offset);
|
|
offset++;
|
|
|
|
|
|
switch(format_type){
|
|
case 1:
|
|
proto_tree_add_item(tree, hf_as_if_ft_nrchannels, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_as_if_ft_subframesize, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_as_if_ft_bitresolution, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_as_if_ft_samfreqtype, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
SamFreqType = tvb_get_guint8(tvb, offset);
|
|
offset++;
|
|
|
|
if(SamFreqType == 0){
|
|
proto_tree_add_item(tree, hf_as_if_ft_lowersamfreq, tvb, offset, 3, ENC_LITTLE_ENDIAN);
|
|
offset += 3;
|
|
proto_tree_add_item(tree, hf_as_if_ft_uppersamfreq, tvb, offset, 3, ENC_LITTLE_ENDIAN);
|
|
offset += 3;
|
|
}else {
|
|
while(SamFreqType){
|
|
proto_tree_add_item(tree, hf_as_if_ft_samfreq, tvb, offset, 3, ENC_LITTLE_ENDIAN);
|
|
offset += 3;
|
|
SamFreqType--;
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
proto_tree_add_item(tree, hf_as_if_ft_maxbitrate, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_as_if_ft_samplesperframe, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_as_if_ft_samfreqtype, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
SamFreqType = tvb_get_guint8(tvb, offset);
|
|
offset++;
|
|
|
|
if(SamFreqType == 0){
|
|
proto_tree_add_item(tree, hf_as_if_ft_lowersamfreq, tvb, offset, 3, ENC_LITTLE_ENDIAN);
|
|
offset += 3;
|
|
proto_tree_add_item(tree, hf_as_if_ft_uppersamfreq, tvb, offset, 3, ENC_LITTLE_ENDIAN);
|
|
offset += 3;
|
|
}else {
|
|
while(SamFreqType){
|
|
proto_tree_add_item(tree, hf_as_if_ft_samfreq, tvb, offset, 3, ENC_LITTLE_ENDIAN);
|
|
offset += 3;
|
|
SamFreqType--;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return offset-offset_start;
|
|
}
|
|
|
|
static gint
|
|
dissect_usb_audio_descriptor(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data)
|
|
{
|
|
gint offset = 0;
|
|
usb_conv_info_t *usb_conv_info;
|
|
proto_tree *desc_tree = NULL;
|
|
proto_item *desc_tree_item;
|
|
guint8 desc_len;
|
|
guint8 desc_type;
|
|
guint8 desc_subtype;
|
|
const gchar *subtype_str;
|
|
|
|
usb_conv_info = (usb_conv_info_t *)data;
|
|
if (!usb_conv_info || usb_conv_info->interfaceClass!=IF_CLASS_AUDIO)
|
|
return 0;
|
|
|
|
desc_len = tvb_get_guint8(tvb, offset);
|
|
desc_type = tvb_get_guint8(tvb, offset+1);
|
|
|
|
if (desc_type==CS_INTERFACE &&
|
|
usb_conv_info->interfaceSubclass==AUDIO_IF_SUBCLASS_AUDIOCONTROL) {
|
|
|
|
desc_tree = proto_tree_add_subtree(tree, tvb, offset, desc_len,
|
|
ett_usb_audio_desc, &desc_tree_item,
|
|
"Class-specific Audio Control Interface Descriptor");
|
|
|
|
dissect_usb_descriptor_header(desc_tree, tvb, offset,
|
|
&aud_descriptor_type_vals_ext);
|
|
offset += 2;
|
|
|
|
desc_subtype = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(desc_tree, hf_ac_if_desc_subtype,
|
|
tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
subtype_str = try_val_to_str_ext(desc_subtype, &ac_subtype_vals_ext);
|
|
if (subtype_str)
|
|
proto_item_append_text(desc_tree_item, ": %s", subtype_str);
|
|
offset++;
|
|
|
|
switch(desc_subtype) {
|
|
case AC_SUBTYPE_HEADER:
|
|
/* these subfunctions return the number of bytes dissected,
|
|
this is not necessarily the length of the body
|
|
as some components are not yet dissected
|
|
we rely on the descriptor's length byte instead */
|
|
dissect_ac_if_hdr_body(tvb, offset, pinfo, desc_tree, usb_conv_info);
|
|
break;
|
|
case AC_SUBTYPE_INPUT_TERMINAL:
|
|
dissect_ac_if_input_terminal(tvb, offset, pinfo, desc_tree, usb_conv_info);
|
|
break;
|
|
case AC_SUBTYPE_OUTPUT_TERMINAL:
|
|
dissect_ac_if_output_terminal(tvb, offset, pinfo, desc_tree, usb_conv_info);
|
|
break;
|
|
case AC_SUBTYPE_MIXER_UNIT:
|
|
dissect_ac_if_mixed_unit(tvb, offset, pinfo, desc_tree, usb_conv_info);
|
|
break;
|
|
case AC_SUBTYPE_FEATURE_UNIT:
|
|
dissect_ac_if_feature_unit(tvb, offset, pinfo, desc_tree, usb_conv_info);
|
|
break;
|
|
default:
|
|
proto_tree_add_expert(desc_tree, pinfo, &ei_usb_audio_undecoded, tvb, offset-3, desc_len);
|
|
break;
|
|
}
|
|
|
|
}
|
|
else if (desc_type==CS_INTERFACE &&
|
|
usb_conv_info->interfaceSubclass==AUDIO_IF_SUBCLASS_AUDIOSTREAMING) {
|
|
|
|
desc_tree = proto_tree_add_subtree(tree, tvb, offset, desc_len,
|
|
ett_usb_audio_desc, &desc_tree_item,
|
|
"Class-specific Audio Streaming Interface Descriptor");
|
|
|
|
dissect_usb_descriptor_header(desc_tree, tvb, offset,
|
|
&aud_descriptor_type_vals_ext);
|
|
offset += 2;
|
|
|
|
desc_subtype = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(desc_tree, hf_as_if_desc_subtype,
|
|
tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
subtype_str = try_val_to_str_ext(desc_subtype, &as_subtype_vals_ext);
|
|
if (subtype_str)
|
|
proto_item_append_text(desc_tree_item, ": %s", subtype_str);
|
|
offset++;
|
|
|
|
switch(desc_subtype) {
|
|
case AS_SUBTYPE_GENERAL:
|
|
dissect_as_if_general_body(tvb, offset, pinfo,
|
|
desc_tree, usb_conv_info);
|
|
break;
|
|
case AS_SUBTYPE_FORMAT_TYPE:
|
|
dissect_as_if_format_type_body(tvb, offset, pinfo,
|
|
desc_tree, usb_conv_info);
|
|
break;
|
|
default:
|
|
proto_tree_add_expert(desc_tree, pinfo, &ei_usb_audio_undecoded, tvb, offset-3, desc_len);
|
|
break;
|
|
}
|
|
}
|
|
/* there are no class-specific endpoint descriptors for audio control */
|
|
else if (desc_type == CS_ENDPOINT &&
|
|
usb_conv_info->interfaceSubclass==AUDIO_IF_SUBCLASS_AUDIOSTREAMING) {
|
|
|
|
desc_tree = proto_tree_add_subtree(tree, tvb, offset, desc_len,
|
|
ett_usb_audio_desc, &desc_tree_item,
|
|
"Class-specific Audio Streaming Endpoint Descriptor");
|
|
|
|
dissect_usb_descriptor_header(desc_tree, tvb, offset,
|
|
&aud_descriptor_type_vals_ext);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(desc_tree, hf_as_ep_desc_subtype,
|
|
tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
else
|
|
return 0;
|
|
|
|
return desc_len;
|
|
}
|
|
|
|
|
|
/* dissector for usb midi bulk data */
|
|
static int
|
|
dissect_usb_audio_bulk(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void *data)
|
|
{
|
|
usb_conv_info_t *usb_conv_info;
|
|
proto_tree *tree;
|
|
proto_item *ti;
|
|
gint offset, length;
|
|
gint i;
|
|
|
|
/* Reject the packet if data is NULL */
|
|
if (data == NULL)
|
|
return 0;
|
|
usb_conv_info = (usb_conv_info_t *)data;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "USBAUDIO");
|
|
|
|
ti = proto_tree_add_protocol_format(parent_tree, proto_usb_audio, tvb, 0, -1, "USB Audio");
|
|
tree = proto_item_add_subtree(ti, ett_usb_audio);
|
|
|
|
length = tvb_reported_length(tvb);
|
|
offset = 0;
|
|
|
|
switch (usb_conv_info->interfaceSubclass)
|
|
{
|
|
case AUDIO_IF_SUBCLASS_MIDISTREAMING:
|
|
col_set_str(pinfo->cinfo, COL_INFO, "USB-MIDI Event Packets");
|
|
|
|
for (i = 0; i < length / 4; i++)
|
|
{
|
|
dissect_usb_midi_event(tvb, pinfo, tree, parent_tree, offset);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
default:
|
|
proto_tree_add_expert(tree, pinfo, &ei_usb_audio_undecoded, tvb, offset, length);
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
static void
|
|
midi_data_reassemble_init(void)
|
|
{
|
|
reassembly_table_init(&midi_data_reassembly_table,
|
|
&addresses_reassembly_table_functions);
|
|
}
|
|
|
|
static void
|
|
midi_data_reassemble_cleanup(void)
|
|
{
|
|
reassembly_table_destroy(&midi_data_reassembly_table);
|
|
}
|
|
|
|
void
|
|
proto_register_usb_audio(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_midi_cable_number,
|
|
{ "Cable Number", "usbaudio.midi.cable_number", FT_UINT8, BASE_HEX,
|
|
NULL, 0xF0, NULL, HFILL }},
|
|
{ &hf_midi_code_index,
|
|
{ "Code Index", "usbaudio.midi.code_index", FT_UINT8, BASE_HEX,
|
|
VALS(code_index_vals), 0x0F, NULL, HFILL }},
|
|
{ &hf_midi_event,
|
|
{ "MIDI Event", "usbaudio.midi.event", FT_UINT24, BASE_HEX,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ac_if_desc_subtype,
|
|
{ "Subtype", "usbaudio.ac_if_subtype", FT_UINT8, BASE_HEX|BASE_EXT_STRING,
|
|
&ac_subtype_vals_ext, 0x00, "bDescriptorSubtype", HFILL }},
|
|
{ &hf_ac_if_hdr_ver,
|
|
{ "Version", "usbaudio.ac_if_hdr.bcdADC",
|
|
FT_DOUBLE, BASE_NONE, NULL, 0, "bcdADC", HFILL }},
|
|
{ &hf_ac_if_hdr_total_len,
|
|
{ "Total length", "usbaudio.ac_if_hdr.wTotalLength",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00, "wTotalLength", HFILL }},
|
|
{ &hf_ac_if_hdr_bInCollection,
|
|
{ "Total number of interfaces", "usbaudio.ac_if_hdr.bInCollection",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bInCollection", HFILL }},
|
|
{ &hf_ac_if_hdr_if_num,
|
|
{ "Interface number", "usbaudio.ac_if_hdr.baInterfaceNr",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "baInterfaceNr", HFILL }},
|
|
{ &hf_ac_if_input_terminalid,
|
|
{ "Terminal ID", "usbaudio.ac_if_input.bTerminalID",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bTerminalID", HFILL }},
|
|
{ &hf_ac_if_input_terminaltype,
|
|
{ "Terminal Type", "usbaudio.ac_if_input.wTerminalType", FT_UINT16,
|
|
BASE_HEX|BASE_EXT_STRING, &terminal_types_vals_ext, 0x00, "wTerminalType", HFILL }},
|
|
{ &hf_ac_if_input_assocterminal,
|
|
{ "Assoc Terminal", "usbaudio.ac_if_input.bAssocTerminal",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bAssocTerminal", HFILL }},
|
|
{ &hf_ac_if_input_nrchannels,
|
|
{ "Number Channels", "usbaudio.ac_if_input.bNrChannels",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bNrChannels", HFILL }},
|
|
{ &hf_ac_if_input_channelconfig,
|
|
{ "Channel Config", "usbaudio.ac_if_input.wChannelConfig",
|
|
FT_UINT16, BASE_HEX, NULL, 0x00, "wChannelConfig", HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d0,
|
|
{ "Left Front", "usbaudio.ac_if_input.wChannelConfig.d0",
|
|
FT_BOOLEAN, 16, NULL, 0x0001, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d1,
|
|
{ "Right Front", "usbaudio.ac_if_input.wChannelConfig.d1",
|
|
FT_BOOLEAN, 16, NULL, 0x0002, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d2,
|
|
{ "Center Front", "usbaudio.ac_if_input.wChannelConfig.d2",
|
|
FT_BOOLEAN, 16, NULL, 0x0004, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d3,
|
|
{ "Low Frequency Enhancement", "usbaudio.ac_if_input.wChannelConfig.d3",
|
|
FT_BOOLEAN, 16, NULL, 0x0008, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d4,
|
|
{ "Left Surround", "usbaudio.ac_if_input.wChannelConfig.d4",
|
|
FT_BOOLEAN, 16, NULL, 0x0010, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d5,
|
|
{ "Right Surround", "usbaudio.ac_if_input.wChannelConfig.d5",
|
|
FT_BOOLEAN, 16, NULL, 0x0020, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d6,
|
|
{ "Left of Center", "usbaudio.ac_if_input.wChannelConfig.d6",
|
|
FT_BOOLEAN, 16, NULL, 0x0040, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d7,
|
|
{ "Right of Center", "usbaudio.ac_if_input.wChannelConfig.d7",
|
|
FT_BOOLEAN, 16, NULL, 0x0080, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d8,
|
|
{ "Surround", "usbaudio.ac_if_input.wChannelConfig.d8",
|
|
FT_BOOLEAN, 16, NULL, 0x0100, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d9,
|
|
{ "Side Left", "usbaudio.ac_if_input.wChannelConfig.d9",
|
|
FT_BOOLEAN, 16, NULL, 0x0200, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d10,
|
|
{ "Side Right", "usbaudio.ac_if_input.wChannelConfig.d10",
|
|
FT_BOOLEAN, 16, NULL, 0x0400, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_d11,
|
|
{ "Top", "usbaudio.ac_if_input.wChannelConfig.d11",
|
|
FT_BOOLEAN, 16, NULL, 0x0800, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelconfig_rsv,
|
|
{ "Reserved", "usbaudio.ac_if_input.wChannelConfig.rsv",
|
|
FT_UINT16, BASE_HEX, NULL, 0xF000, NULL, HFILL }},
|
|
{ &hf_ac_if_input_channelnames,
|
|
{ "Channel Names", "usbaudio.ac_if_input.iChannelNames",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "iChannelNames", HFILL }},
|
|
{ &hf_ac_if_input_terminal,
|
|
{ "Terminal", "usbaudio.ac_if_input.iTerminal",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "iTerminal", HFILL }},
|
|
{ &hf_ac_if_output_terminalid,
|
|
{ "Terminal ID", "usbaudio.ac_if_output.bTerminalID",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bTerminalID", HFILL }},
|
|
{ &hf_ac_if_output_terminaltype,
|
|
{ "Terminal Type", "usbaudio.ac_if_output.wTerminalType", FT_UINT16,
|
|
BASE_HEX|BASE_EXT_STRING, &terminal_types_vals_ext, 0x00, "wTerminalType", HFILL }},
|
|
{ &hf_ac_if_output_assocterminal,
|
|
{ "Assoc Terminal", "usbaudio.ac_if_output.bAssocTerminal",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bAssocTerminal", HFILL }},
|
|
{ &hf_ac_if_output_sourceid,
|
|
{ "Source ID", "usbaudio.ac_if_output.bSourceID",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bSourceID", HFILL }},
|
|
{ &hf_ac_if_output_terminal,
|
|
{ "Terminal", "usbaudio.ac_if_output.iTerminal",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "iTerminal", HFILL }},
|
|
{ &hf_ac_if_fu_unitid,
|
|
{ "Unit ID", "usbaudio.ac_if_fu.bUnitID",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bUnitID", HFILL }},
|
|
{ &hf_ac_if_fu_sourceid,
|
|
{ "Source ID", "usbaudio.ac_if_fu.bSourceID",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bSourceID", HFILL }},
|
|
{ &hf_ac_if_fu_controlsize,
|
|
{ "Control Size", "usbaudio.ac_if_fu.bControlSize",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bControlSize", HFILL }},
|
|
{ &hf_ac_if_fu_controls,
|
|
{ "Controls", "usbaudio.ac_if_fu.bmaControls",
|
|
FT_BYTES, BASE_NONE, NULL, 0x00, "bmaControls", HFILL }},
|
|
{ &hf_ac_if_fu_control,
|
|
{ "Control", "usbaudio.ac_if_fu.bmaControl",
|
|
FT_UINT8, BASE_HEX, NULL, 0x00, "bmaControls", HFILL }},
|
|
{ &hf_ac_if_fu_controls_d0,
|
|
{ "Mute", "usbaudio.ac_if_fu.bmaControls.d0",
|
|
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d1,
|
|
{ "Volume", "usbaudio.ac_if_fu.bmaControls.d1",
|
|
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d2,
|
|
{ "Bass", "usbaudio.ac_if_fu.bmaControls.d2",
|
|
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d3,
|
|
{ "Mid", "usbaudio.ac_if_fu.bmaControls.d3",
|
|
FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d4,
|
|
{ "Treble", "usbaudio.ac_if_fu.bmaControls.d4",
|
|
FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d5,
|
|
{ "Graphic Equalizer", "usbaudio.ac_if_fu.bmaControls.d5",
|
|
FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d6,
|
|
{ "Automatic Gain", "usbaudio.ac_if_fu.bmaControls.d6",
|
|
FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d7,
|
|
{ "Delay", "usbaudio.ac_if_fu.bmaControls.d7",
|
|
FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d8,
|
|
{ "Bass Boost", "usbaudio.ac_if_fu.bmaControls.d8",
|
|
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_d9,
|
|
{ "Loudness", "usbaudio.ac_if_fu.bmaControls.d9",
|
|
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL }},
|
|
{ &hf_ac_if_fu_controls_rsv,
|
|
{ "Reserved", "usbaudio.ac_if_fu.bmaControls.rsv",
|
|
FT_UINT8, BASE_HEX, NULL, 0xFC, "Must be zero", HFILL }},
|
|
{ &hf_ac_if_fu_ifeature,
|
|
{ "Feature", "usbaudio.ac_if_fu.iFeature",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "iFeature", HFILL }},
|
|
{ &hf_ac_if_mu_unitid,
|
|
{ "Unit ID", "usbaudio.ac_if_mu.bUnitID",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bUnitID", HFILL }},
|
|
{ &hf_ac_if_mu_nrinpins,
|
|
{ "Number In Pins", "usbaudio.ac_if_mu.bNrInPins",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bNrInPins", HFILL }},
|
|
{ &hf_ac_if_mu_sourceid,
|
|
{ "Source ID", "usbaudio.ac_if_mu.baSourceID",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "baSourceID", HFILL }},
|
|
{ &hf_ac_if_mu_nrchannels,
|
|
{ "Number Channels", "usbaudio.ac_if_mu.bNrChannels",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bNrChannels", HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig,
|
|
{ "Channel Config", "usbaudio.ac_if_mu.wChannelConfig",
|
|
FT_UINT16, BASE_HEX, NULL, 0x00, "wChannelConfig", HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d0,
|
|
{ "Left Front", "usbaudio.ac_if_mu.wChannelConfig.d0",
|
|
FT_BOOLEAN, 16, NULL, 0x0001, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d1,
|
|
{ "Right Front", "usbaudio.ac_if_mu.wChannelConfig.d1",
|
|
FT_BOOLEAN, 16, NULL, 0x0002, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d2,
|
|
{ "Center Front", "usbaudio.ac_if_mu.wChannelConfig.d2",
|
|
FT_BOOLEAN, 16, NULL, 0x0004, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d3,
|
|
{ "Low Frequency Enhancement", "usbaudio.ac_if_mu.wChannelConfig.d3",
|
|
FT_BOOLEAN, 16, NULL, 0x0008, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d4,
|
|
{ "Left Surround", "usbaudio.ac_if_mu.wChannelConfig.d4",
|
|
FT_BOOLEAN, 16, NULL, 0x0010, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d5,
|
|
{ "Right Surround", "usbaudio.ac_if_mu.wChannelConfig.d5",
|
|
FT_BOOLEAN, 16, NULL, 0x0020, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d6,
|
|
{ "Left of Center", "usbaudio.ac_if_mu.wChannelConfig.d6",
|
|
FT_BOOLEAN, 16, NULL, 0x0040, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d7,
|
|
{ "Right of Center", "usbaudio.ac_if_mu.wChannelConfig.d7",
|
|
FT_BOOLEAN, 16, NULL, 0x0080, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d8,
|
|
{ "Surround", "usbaudio.ac_if_mu.wChannelConfig.d8",
|
|
FT_BOOLEAN, 16, NULL, 0x0100, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d9,
|
|
{ "Side Left", "usbaudio.ac_if_mu.wChannelConfig.d9",
|
|
FT_BOOLEAN, 16, NULL, 0x0200, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d10,
|
|
{ "Side Right", "usbaudio.ac_if_mu.wChannelConfig.d10",
|
|
FT_BOOLEAN, 16, NULL, 0x0400, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_d11,
|
|
{ "Top", "usbaudio.ac_if_mu.wChannelConfig.d11",
|
|
FT_BOOLEAN, 16, NULL, 0x0800, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelconfig_rsv,
|
|
{ "Reserved", "usbaudio.ac_if_mu.wChannelConfig.rsv",
|
|
FT_UINT16, BASE_HEX, NULL, 0xF000, NULL, HFILL }},
|
|
{ &hf_ac_if_mu_channelnames,
|
|
{ "Channel Names", "usbaudio.ac_if_mu.iChannelNames",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "iChannelNames", HFILL }},
|
|
{ &hf_ac_if_mu_controls,
|
|
{ "Controls", "usbaudio.ac_if_mu.bmControls",
|
|
FT_UINT8, BASE_HEX, NULL, 0x00, "bmControls", HFILL }},
|
|
{ &hf_ac_if_mu_imixer,
|
|
{ "Mixer", "usbaudio.ac_if_mu.iMixer",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "iMixer", HFILL }},
|
|
{ &hf_as_if_desc_subtype,
|
|
{ "Subtype", "usbaudio.as_if_subtype", FT_UINT8, BASE_HEX|BASE_EXT_STRING,
|
|
&as_subtype_vals_ext, 0x00, "bDescriptorSubtype", HFILL }},
|
|
{ &hf_as_if_gen_term_id,
|
|
{ "Terminal ID", "usbaudio.as_if_gen.bTerminalLink",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bTerminalLink", HFILL }},
|
|
{ &hf_as_if_gen_delay,
|
|
{ "Interface delay in frames", "usbaudio.as_if_gen.bDelay",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bDelay", HFILL }},
|
|
{ &hf_as_if_gen_format,
|
|
{ "Format", "usbaudio.as_if_gen.wFormatTag",
|
|
FT_UINT16, BASE_HEX, NULL, 0x00, "wFormatTag", HFILL }},
|
|
{ &hf_as_if_ft_formattype,
|
|
{ "FormatType", "usbaudio.as_if_ft.bFormatType",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "wFormatType", HFILL }},
|
|
{ &hf_as_if_ft_maxbitrate,
|
|
{ "Max Bit Rate", "usbaudio.as_if_ft.wMaxBitRate",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00, "wMaxBitRate", HFILL }},
|
|
{ &hf_as_if_ft_nrchannels,
|
|
{ "Number Channels", "usbaudio.as_if_ft.bNrChannels",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bNrChannels", HFILL }},
|
|
{ &hf_as_if_ft_subframesize,
|
|
{ "Subframe Size", "usbaudio.as_if_ft.bSubframeSize",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bSubframeSize", HFILL }},
|
|
{ &hf_as_if_ft_bitresolution,
|
|
{ "Bit Resolution", "usbaudio.as_if_ft.bBitResolution",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bBitResolution", HFILL }},
|
|
{ &hf_as_if_ft_samplesperframe,
|
|
{ "Samples Per Frame", "usbaudio.as_if_ft.wSamplesPerFrame",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00, "wSamplesPerFrame", HFILL }},
|
|
{ &hf_as_if_ft_samfreqtype,
|
|
{ "Samples Frequence Type", "usbaudio.as_if_ft.bSamFreqType",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00, "bSamFreqType", HFILL }},
|
|
{ &hf_as_if_ft_lowersamfreq,
|
|
{ "Lower Samples Frequence", "usbaudio.as_if_ft.tLowerSamFreq",
|
|
FT_UINT24, BASE_DEC, NULL, 0x00, "tLowerSamFreq", HFILL }},
|
|
{ &hf_as_if_ft_uppersamfreq,
|
|
{ "Upper Samples Frequence", "usbaudio.as_if_ft.tUpperSamFreq",
|
|
FT_UINT24, BASE_DEC, NULL, 0x00, "tUpperSamFreq", HFILL }},
|
|
{ &hf_as_if_ft_samfreq,
|
|
{ "Samples Frequence", "usbaudio.as_if_ft.tSamFreq",
|
|
FT_UINT24, BASE_DEC, NULL, 0x00, "tSamFreq", HFILL }},
|
|
{ &hf_as_ep_desc_subtype,
|
|
{ "Subtype", "usbaudio.as_ep_subtype", FT_UINT8,
|
|
BASE_HEX, NULL, 0x00, "bDescriptorSubtype", HFILL }},
|
|
|
|
{ &hf_sysex_msg_fragments,
|
|
{ "Message fragments", "usbaudio.sysex.fragments",
|
|
FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_fragment,
|
|
{ "Message fragment", "usbaudio.sysex.fragment",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_fragment_overlap,
|
|
{ "Message fragment overlap", "usbaudio.sysex.fragment.overlap",
|
|
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_fragment_overlap_conflicts,
|
|
{ "Message fragment overlapping with conflicting data",
|
|
"usbaudio.sysex.fragment.overlap.conflicts",
|
|
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_fragment_multiple_tails,
|
|
{ "Message has multiple tail fragments",
|
|
"usbaudio.sysex.fragment.multiple_tails",
|
|
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_fragment_too_long_fragment,
|
|
{ "Message fragment too long", "usbaudio.sysex.fragment.too_long_fragment",
|
|
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_fragment_error,
|
|
{ "Message defragmentation error", "usbaudio.sysex.fragment.error",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_fragment_count,
|
|
{ "Message fragment count", "usbaudio.sysex.fragment.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_reassembled_in,
|
|
{ "Reassembled in", "usbaudio.sysex.reassembled.in",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_reassembled_length,
|
|
{ "Reassembled length", "usbaudio.sysex.reassembled.length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }},
|
|
{ &hf_sysex_msg_reassembled_data,
|
|
{ "Reassembled data", "usbaudio.sysex.reassembled.data",
|
|
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}
|
|
};
|
|
|
|
static gint *usb_audio_subtrees[] = {
|
|
&ett_usb_audio,
|
|
&ett_usb_audio_desc,
|
|
&ett_sysex_msg_fragment,
|
|
&ett_sysex_msg_fragments,
|
|
&ett_ac_if_fu_controls,
|
|
&ett_ac_if_fu_controls0,
|
|
&ett_ac_if_fu_controls1,
|
|
&ett_ac_if_input_channelconfig,
|
|
&ett_ac_if_mu_channelconfig
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_usb_audio_undecoded, { "usbaudio.undecoded", PI_UNDECODED, PI_WARN, "Not dissected yet (report to wireshark.org)", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t *expert_usb_audio;
|
|
|
|
proto_usb_audio = proto_register_protocol("USB Audio", "USBAUDIO", "usbaudio");
|
|
proto_register_field_array(proto_usb_audio, hf, array_length(hf));
|
|
proto_register_subtree_array(usb_audio_subtrees, array_length(usb_audio_subtrees));
|
|
expert_usb_audio = expert_register_protocol(proto_usb_audio);
|
|
expert_register_field_array(expert_usb_audio, ei, array_length(ei));
|
|
register_init_routine(&midi_data_reassemble_init);
|
|
register_cleanup_routine(&midi_data_reassemble_cleanup);
|
|
|
|
register_dissector("usbaudio", dissect_usb_audio_bulk, proto_usb_audio);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_usb_audio(void)
|
|
{
|
|
dissector_handle_t usb_audio_bulk_handle, usb_audio_descr_handle;
|
|
|
|
usb_audio_descr_handle = create_dissector_handle(
|
|
dissect_usb_audio_descriptor, proto_usb_audio);
|
|
dissector_add_uint("usb.descriptor", IF_CLASS_AUDIO, usb_audio_descr_handle);
|
|
|
|
usb_audio_bulk_handle = find_dissector("usbaudio");
|
|
dissector_add_uint("usb.bulk", IF_CLASS_AUDIO, usb_audio_bulk_handle);
|
|
|
|
sysex_handle = find_dissector_add_dependency("sysex", proto_usb_audio);
|
|
}
|
|
/*
|
|
* Editor modelines
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|