diff options
Diffstat (limited to 'epan/dissectors/packet-usb-audio.c')
-rw-r--r-- | epan/dissectors/packet-usb-audio.c | 3159 |
1 files changed, 3159 insertions, 0 deletions
diff --git a/epan/dissectors/packet-usb-audio.c b/epan/dissectors/packet-usb-audio.c new file mode 100644 index 00000000..c69aa4dd --- /dev/null +++ b/epan/dissectors/packet-usb-audio.c @@ -0,0 +1,3159 @@ +/* packet-usb-audio.c + * + * usb audio dissector + * Tomasz Mon 2012 + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +/* the parsing of audio-specific descriptors is based on + USB Audio Device Class Specification for Basic Audio Devices, Release 1.0, + USB Device Class Definition for Audio Devices, Release 2.0 and + USB Device Class Definition for MIDI Devices, Release 1.0 */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/expert.h> +#include <epan/reassemble.h> +#include "packet-usb.h" + +/* XXX - we use the same macro for mpeg sections, + can we put this in a common include file? */ +#define USB_AUDIO_BCD44_TO_DEC(x) ((((x)&0xf0) >> 4) * 10 + ((x)&0x0f)) + +void proto_register_usb_audio(void); +void proto_reg_handoff_usb_audio(void); + +/* protocols and header fields */ +static int proto_usb_audio = -1; +static int hf_midi_cable_number = -1; +static int hf_midi_code_index = -1; +static int hf_midi_event = -1; +static int hf_midi_padding = -1; +static int hf_ac_if_desc_subtype = -1; +static int hf_ac_if_hdr_ver = -1; +static int hf_ac_if_hdr_total_len = -1; +static int hf_ac_if_hdr_bInCollection = -1; +static int hf_ac_if_hdr_if_num = -1; +static int hf_ac_if_hdr_category = -1; +static int hf_ac_if_hdr_controls = -1; +static int hf_ac_if_hdr_controls_latency = -1; +static int hf_ac_if_hdr_controls_rsv = -1; +static int hf_ac_if_input_terminalid = -1; +static int hf_ac_if_input_terminaltype = -1; +static int hf_ac_if_input_assocterminal = -1; +static int hf_ac_if_input_csourceid = -1; +static int hf_ac_if_input_nrchannels = -1; +static int hf_ac_if_input_wchannelconfig = -1; +static int hf_ac_if_input_wchannelconfig_d0 = -1; +static int hf_ac_if_input_wchannelconfig_d1 = -1; +static int hf_ac_if_input_wchannelconfig_d2 = -1; +static int hf_ac_if_input_wchannelconfig_d3 = -1; +static int hf_ac_if_input_wchannelconfig_d4 = -1; +static int hf_ac_if_input_wchannelconfig_d5 = -1; +static int hf_ac_if_input_wchannelconfig_d6 = -1; +static int hf_ac_if_input_wchannelconfig_d7 = -1; +static int hf_ac_if_input_wchannelconfig_d8 = -1; +static int hf_ac_if_input_wchannelconfig_d9 = -1; +static int hf_ac_if_input_wchannelconfig_d10 = -1; +static int hf_ac_if_input_wchannelconfig_d11 = -1; +static int hf_ac_if_input_wchannelconfig_rsv = -1; +static int hf_ac_if_input_bmchannelconfig = -1; +static int hf_ac_if_input_bmchannelconfig_d0 = -1; +static int hf_ac_if_input_bmchannelconfig_d1 = -1; +static int hf_ac_if_input_bmchannelconfig_d2 = -1; +static int hf_ac_if_input_bmchannelconfig_d3 = -1; +static int hf_ac_if_input_bmchannelconfig_d4 = -1; +static int hf_ac_if_input_bmchannelconfig_d5 = -1; +static int hf_ac_if_input_bmchannelconfig_d6 = -1; +static int hf_ac_if_input_bmchannelconfig_d7 = -1; +static int hf_ac_if_input_bmchannelconfig_d8 = -1; +static int hf_ac_if_input_bmchannelconfig_d9 = -1; +static int hf_ac_if_input_bmchannelconfig_d10 = -1; +static int hf_ac_if_input_bmchannelconfig_d11 = -1; +static int hf_ac_if_input_bmchannelconfig_d12 = -1; +static int hf_ac_if_input_bmchannelconfig_d13 = -1; +static int hf_ac_if_input_bmchannelconfig_d14 = -1; +static int hf_ac_if_input_bmchannelconfig_d15 = -1; +static int hf_ac_if_input_bmchannelconfig_d16 = -1; +static int hf_ac_if_input_bmchannelconfig_d17 = -1; +static int hf_ac_if_input_bmchannelconfig_d18 = -1; +static int hf_ac_if_input_bmchannelconfig_d19 = -1; +static int hf_ac_if_input_bmchannelconfig_d20 = -1; +static int hf_ac_if_input_bmchannelconfig_d21 = -1; +static int hf_ac_if_input_bmchannelconfig_d22 = -1; +static int hf_ac_if_input_bmchannelconfig_d23 = -1; +static int hf_ac_if_input_bmchannelconfig_d24 = -1; +static int hf_ac_if_input_bmchannelconfig_d25 = -1; +static int hf_ac_if_input_bmchannelconfig_d26 = -1; +static int hf_ac_if_input_bmchannelconfig_rsv = -1; +static int hf_ac_if_input_bmchannelconfig_d31 = -1; +static int hf_ac_if_input_channelnames = -1; +static int hf_ac_if_input_controls = -1; +static int hf_ac_if_input_controls_copy = -1; +static int hf_ac_if_input_controls_connector = -1; +static int hf_ac_if_input_controls_overload = -1; +static int hf_ac_if_input_controls_cluster = -1; +static int hf_ac_if_input_controls_underflow = -1; +static int hf_ac_if_input_controls_overflow = -1; +static int hf_ac_if_input_controls_rsv = -1; +static int hf_ac_if_input_terminal = -1; +static int hf_ac_if_output_terminalid = -1; +static int hf_ac_if_output_terminaltype = -1; +static int hf_ac_if_output_assocterminal = -1; +static int hf_ac_if_output_sourceid = -1; +static int hf_ac_if_output_clk_sourceid = -1; +static int hf_ac_if_output_controls = -1; +static int hf_ac_if_output_controls_copy = -1; +static int hf_ac_if_output_controls_connector = -1; +static int hf_ac_if_output_controls_overload = -1; +static int hf_ac_if_output_controls_underflow = -1; +static int hf_ac_if_output_controls_overflow = -1; +static int hf_ac_if_output_controls_rsv = -1; +static int hf_ac_if_output_terminal = -1; +static int hf_ac_if_fu_unitid = -1; +static int hf_ac_if_fu_sourceid = -1; +static int hf_ac_if_fu_controlsize = -1; +static int hf_ac_if_fu_controls = -1; +static int hf_ac_if_fu_control = -1; +static int hf_ac_if_fu_controls_d0 = -1; +static int hf_ac_if_fu_controls_d1 = -1; +static int hf_ac_if_fu_controls_d2 = -1; +static int hf_ac_if_fu_controls_d3 = -1; +static int hf_ac_if_fu_controls_d4 = -1; +static int hf_ac_if_fu_controls_d5 = -1; +static int hf_ac_if_fu_controls_d6 = -1; +static int hf_ac_if_fu_controls_d7 = -1; +static int hf_ac_if_fu_controls_d8 = -1; +static int hf_ac_if_fu_controls_d9 = -1; +static int hf_ac_if_fu_controls_rsv = -1; +static int hf_ac_if_fu_controls_v2 = -1; +static int hf_ac_if_fu_control_v2 = -1; +static int hf_ac_if_fu_controls_v2_d0 = -1; +static int hf_ac_if_fu_controls_v2_d1 = -1; +static int hf_ac_if_fu_controls_v2_d2 = -1; +static int hf_ac_if_fu_controls_v2_d3 = -1; +static int hf_ac_if_fu_controls_v2_d4 = -1; +static int hf_ac_if_fu_controls_v2_d5 = -1; +static int hf_ac_if_fu_controls_v2_d6 = -1; +static int hf_ac_if_fu_controls_v2_d7 = -1; +static int hf_ac_if_fu_controls_v2_d8 = -1; +static int hf_ac_if_fu_controls_v2_d9 = -1; +static int hf_ac_if_fu_controls_v2_d10 = -1; +static int hf_ac_if_fu_controls_v2_d11 = -1; +static int hf_ac_if_fu_controls_v2_d12 = -1; +static int hf_ac_if_fu_controls_v2_d13 = -1; +static int hf_ac_if_fu_controls_v2_d14 = -1; +static int hf_ac_if_fu_controls_v2_rsv = -1; +static int hf_ac_if_fu_ifeature = -1; +static int hf_ac_if_su_unitid = -1; +static int hf_ac_if_su_nrinpins = -1; +static int hf_ac_if_su_sourceids = -1; +static int hf_ac_if_su_sourceid = -1; +static int hf_ac_if_su_controls = -1; +static int hf_ac_if_su_controls_d0 = -1; +static int hf_ac_if_su_controls_rsv = -1; +static int hf_ac_if_su_iselector = -1; +static int hf_ac_if_mu_unitid = -1; +static int hf_ac_if_mu_nrinpins = -1; +static int hf_ac_if_mu_sourceid = -1; +static int hf_ac_if_mu_nrchannels = -1; +static int hf_ac_if_mu_channelconfig = -1; +static int hf_ac_if_mu_channelconfig_d0 = -1; +static int hf_ac_if_mu_channelconfig_d1 = -1; +static int hf_ac_if_mu_channelconfig_d2 = -1; +static int hf_ac_if_mu_channelconfig_d3 = -1; +static int hf_ac_if_mu_channelconfig_d4 = -1; +static int hf_ac_if_mu_channelconfig_d5 = -1; +static int hf_ac_if_mu_channelconfig_d6 = -1; +static int hf_ac_if_mu_channelconfig_d7 = -1; +static int hf_ac_if_mu_channelconfig_d8 = -1; +static int hf_ac_if_mu_channelconfig_d9 = -1; +static int hf_ac_if_mu_channelconfig_d10 = -1; +static int hf_ac_if_mu_channelconfig_d11 = -1; +static int hf_ac_if_mu_channelconfig_rsv = -1; +static int hf_ac_if_mu_channelnames = -1; +static int hf_ac_if_mu_controls = -1; +static int hf_ac_if_mu_imixer = -1; +static int hf_ac_if_clksrc_id = -1; +static int hf_ac_if_clksrc_attr = -1; +static int hf_ac_if_clksrc_attr_type = -1; +static int hf_ac_if_clksrc_attr_d2 = -1; +static int hf_ac_if_clksrc_attr_rsv = -1; +static int hf_ac_if_clksrc_controls = -1; +static int hf_ac_if_clksrc_controls_freq = -1; +static int hf_ac_if_clksrc_controls_validity = -1; +static int hf_ac_if_clksrc_controls_rsv = -1; +static int hf_ac_if_clksrc_assocterminal = -1; +static int hf_ac_if_clksrc_clocksource = -1; +static int hf_ac_if_clksel_id = -1; +static int hf_ac_if_clksel_nrpins = -1; +static int hf_ac_if_clksel_sourceid = -1; +static int hf_ac_if_clksel_controls = -1; +static int hf_ac_if_clksel_controls_clksel = -1; +static int hf_ac_if_clksel_controls_rsv = -1; +static int hf_ac_if_clksel_clockselector = -1; +static int hf_as_if_desc_subtype = -1; +static int hf_as_if_gen_term_link = -1; +static int hf_as_if_gen_delay = -1; +static int hf_as_if_gen_wformattag = -1; +static int hf_as_if_gen_controls = -1; +static int hf_as_if_gen_controls_active = -1; +static int hf_as_if_gen_controls_valid = -1; +static int hf_as_if_gen_controls_rsv = -1; +static int hf_as_if_gen_formattype = -1; +static int hf_as_if_gen_formats = -1; +static int hf_as_if_gen_formats_i_d0 = -1; +static int hf_as_if_gen_formats_i_d1 = -1; +static int hf_as_if_gen_formats_i_d2 = -1; +static int hf_as_if_gen_formats_i_d3 = -1; +static int hf_as_if_gen_formats_i_d4 = -1; +static int hf_as_if_gen_formats_i_rsv = -1; +static int hf_as_if_gen_formats_i_d31 = -1; +static int hf_as_if_gen_formats_ii_d0 = -1; +static int hf_as_if_gen_formats_ii_d1 = -1; +static int hf_as_if_gen_formats_ii_d2 = -1; +static int hf_as_if_gen_formats_ii_d3 = -1; +static int hf_as_if_gen_formats_ii_rsv = -1; +static int hf_as_if_gen_formats_ii_d31 = -1; +static int hf_as_if_gen_formats_iii_d0 = -1; +static int hf_as_if_gen_formats_iii_d1 = -1; +static int hf_as_if_gen_formats_iii_d2 = -1; +static int hf_as_if_gen_formats_iii_d3 = -1; +static int hf_as_if_gen_formats_iii_d4 = -1; +static int hf_as_if_gen_formats_iii_d5 = -1; +static int hf_as_if_gen_formats_iii_d6 = -1; +static int hf_as_if_gen_formats_iii_d7 = -1; +static int hf_as_if_gen_formats_iii_d8 = -1; +static int hf_as_if_gen_formats_iii_d9 = -1; +static int hf_as_if_gen_formats_iii_d10 = -1; +static int hf_as_if_gen_formats_iii_d11 = -1; +static int hf_as_if_gen_formats_iii_d12 = -1; +static int hf_as_if_gen_formats_iii_rsv = -1; +static int hf_as_if_gen_formats_iv_d0 = -1; +static int hf_as_if_gen_formats_iv_d1 = -1; +static int hf_as_if_gen_formats_iv_d2 = -1; +static int hf_as_if_gen_formats_iv_d3 = -1; +static int hf_as_if_gen_formats_iv_d4 = -1; +static int hf_as_if_gen_formats_iv_d5 = -1; +static int hf_as_if_gen_formats_iv_d6 = -1; +static int hf_as_if_gen_formats_iv_d7 = -1; +static int hf_as_if_gen_formats_iv_d8 = -1; +static int hf_as_if_gen_formats_iv_d9 = -1; +static int hf_as_if_gen_formats_iv_d10 = -1; +static int hf_as_if_gen_formats_iv_d11 = -1; +static int hf_as_if_gen_formats_iv_d12 = -1; +static int hf_as_if_gen_formats_iv_d13 = -1; +static int hf_as_if_gen_formats_iv_d14 = -1; +static int hf_as_if_gen_formats_iv_d15 = -1; +static int hf_as_if_gen_formats_iv_d16 = -1; +static int hf_as_if_gen_formats_iv_d17 = -1; +static int hf_as_if_gen_formats_iv_d18 = -1; +static int hf_as_if_gen_formats_iv_d19 = -1; +static int hf_as_if_gen_formats_iv_d20 = -1; +static int hf_as_if_gen_formats_iv_d21 = -1; +static int hf_as_if_gen_formats_iv_rsv = -1; +static int hf_as_if_gen_nrchannels = -1; +static int hf_as_if_gen_bmchannelconfig = -1; +static int hf_as_if_gen_bmchannelconfig_d0 = -1; +static int hf_as_if_gen_bmchannelconfig_d1 = -1; +static int hf_as_if_gen_bmchannelconfig_d2 = -1; +static int hf_as_if_gen_bmchannelconfig_d3 = -1; +static int hf_as_if_gen_bmchannelconfig_d4 = -1; +static int hf_as_if_gen_bmchannelconfig_d5 = -1; +static int hf_as_if_gen_bmchannelconfig_d6 = -1; +static int hf_as_if_gen_bmchannelconfig_d7 = -1; +static int hf_as_if_gen_bmchannelconfig_d8 = -1; +static int hf_as_if_gen_bmchannelconfig_d9 = -1; +static int hf_as_if_gen_bmchannelconfig_d10 = -1; +static int hf_as_if_gen_bmchannelconfig_d11 = -1; +static int hf_as_if_gen_bmchannelconfig_d12 = -1; +static int hf_as_if_gen_bmchannelconfig_d13 = -1; +static int hf_as_if_gen_bmchannelconfig_d14 = -1; +static int hf_as_if_gen_bmchannelconfig_d15 = -1; +static int hf_as_if_gen_bmchannelconfig_d16 = -1; +static int hf_as_if_gen_bmchannelconfig_d17 = -1; +static int hf_as_if_gen_bmchannelconfig_d18 = -1; +static int hf_as_if_gen_bmchannelconfig_d19 = -1; +static int hf_as_if_gen_bmchannelconfig_d20 = -1; +static int hf_as_if_gen_bmchannelconfig_d21 = -1; +static int hf_as_if_gen_bmchannelconfig_d22 = -1; +static int hf_as_if_gen_bmchannelconfig_d23 = -1; +static int hf_as_if_gen_bmchannelconfig_d24 = -1; +static int hf_as_if_gen_bmchannelconfig_d25 = -1; +static int hf_as_if_gen_bmchannelconfig_d26 = -1; +static int hf_as_if_gen_bmchannelconfig_rsv = -1; +static int hf_as_if_gen_bmchannelconfig_d31 = -1; +static int hf_as_if_gen_channelnames = -1; +static int hf_as_if_ft_formattype = -1; +static int hf_as_if_ft_maxbitrate = -1; +static int hf_as_if_ft_nrchannels = -1; +static int hf_as_if_ft_subframesize = -1; +static int hf_as_if_ft_subslotsize = -1; +static int hf_as_if_ft_bitresolution = -1; +static int hf_as_if_ft_samplesperframe = -1; +static int hf_as_if_ft_samfreqtype = -1; +static int hf_as_if_ft_lowersamfreq = -1; +static int hf_as_if_ft_uppersamfreq = -1; +static int hf_as_if_ft_samfreq = -1; +static int hf_as_ep_desc_subtype = -1; +static int hf_as_ep_gen_bmattributes = -1; +static int hf_as_ep_gen_bmattributes_d0 = -1; +static int hf_as_ep_gen_bmattributes_d1 = -1; +static int hf_as_ep_gen_bmattributes_rsv = -1; +static int hf_as_ep_gen_bmattributes_d7 = -1; +static int hf_as_ep_gen_controls = -1; +static int hf_as_ep_gen_controls_pitch = -1; +static int hf_as_ep_gen_controls_data_overrun = -1; +static int hf_as_ep_gen_controls_data_underrun = -1; +static int hf_as_ep_gen_controls_rsv = -1; +static int hf_as_ep_gen_lockdelayunits = -1; +static int hf_as_ep_gen_lockdelay = -1; +static int hf_ms_if_desc_subtype = -1; +static int hf_ms_if_hdr_ver = -1; +static int hf_ms_if_hdr_total_len = -1; +static int hf_ms_if_midi_in_bjacktype = -1; +static int hf_ms_if_midi_in_bjackid = -1; +static int hf_ms_if_midi_in_ijack = -1; +static int hf_ms_if_midi_out_bjacktype = -1; +static int hf_ms_if_midi_out_bjackid = -1; +static int hf_ms_if_midi_out_bnrinputpins = -1; +static int hf_ms_if_midi_out_basourceid = -1; +static int hf_ms_if_midi_out_basourcepin = -1; +static int hf_ms_if_midi_out_ijack = -1; +static int hf_ms_ep_gen_numjacks = -1; +static int hf_ms_ep_gen_baassocjackid = -1; +static int hf_ms_ep_desc_subtype = -1; + +static reassembly_table midi_data_reassembly_table; + +static gint ett_usb_audio = -1; +static gint ett_usb_audio_desc = -1; + +static gint ett_ac_if_hdr_controls = -1; +static gint ett_ac_if_fu_controls = -1; +static gint ett_ac_if_fu_controls0 = -1; +static gint ett_ac_if_fu_controls1 = -1; +static gint ett_ac_if_fu_controls_v2 = -1; +static gint ett_ac_if_fu_control_v2 = -1; +static gint ett_ac_if_su_sourceids = -1; +static gint ett_ac_if_su_controls = -1; +static gint ett_ac_if_input_wchannelconfig = -1; +static gint ett_ac_if_input_bmchannelconfig = -1; +static gint ett_ac_if_input_controls = -1; +static gint ett_ac_if_output_controls = -1; +static gint ett_ac_if_mu_channelconfig = -1; +static gint ett_ac_if_clksrc_attr = -1; +static gint ett_ac_if_clksrc_controls = -1; +static gint ett_ac_if_clksel_controls = -1; +static gint ett_as_if_gen_controls = -1; +static gint ett_as_if_gen_formats = -1; +static gint ett_as_if_gen_bmchannelconfig = -1; +static gint ett_as_ep_gen_attributes = -1; +static gint ett_as_ep_gen_controls = -1; + +static dissector_handle_t sysex_handle; +static dissector_handle_t usb_audio_bulk_handle; +static dissector_handle_t usb_audio_descr_handle; + + +#define AUDIO_IF_SUBCLASS_UNDEFINED 0x00 +#define AUDIO_IF_SUBCLASS_AUDIOCONTROL 0x01 +#define AUDIO_IF_SUBCLASS_AUDIOSTREAMING 0x02 +#define AUDIO_IF_SUBCLASS_MIDISTREAMING 0x03 + +static const value_string usb_audio_subclass_vals[] = { + {AUDIO_IF_SUBCLASS_UNDEFINED, "Undefined"}, + {AUDIO_IF_SUBCLASS_AUDIOCONTROL, "Audio Control"}, + {AUDIO_IF_SUBCLASS_AUDIOSTREAMING, "Audio Streaming"}, + {AUDIO_IF_SUBCLASS_MIDISTREAMING, "MIDI Streaming"}, + {0,NULL} +}; +value_string_ext ext_usb_audio_subclass_vals = + VALUE_STRING_EXT_INIT(usb_audio_subclass_vals); + +static const value_string code_index_vals[] = { + { 0x0, "Miscellaneous (Reserved)" }, + { 0x1, "Cable events (Reserved)" }, + { 0x2, "Two-byte System Common message" }, + { 0x3, "Three-byte System Common message" }, + { 0x4, "SysEx starts or continues" }, + { 0x5, "SysEx ends with following single byte/Single-byte System Common Message" }, + { 0x6, "SysEx ends with following two bytes" }, + { 0x7, "SysEx ends with following three bytes" }, + { 0x8, "Note-off" }, + { 0x9, "Note-on" }, + { 0xA, "Poly-KeyPress" }, + { 0xB, "Control Change" }, + { 0xC, "Program Change" }, + { 0xD, "Channel Pressure" }, + { 0xE, "PitchBend Change" }, + { 0xF, "Single Byte" }, + { 0, NULL } +}; + +/* USB audio specification, section A.8 */ +#define CS_INTERFACE 0x24 +#define CS_ENDPOINT 0x25 + +static const value_string aud_descriptor_type_vals[] = { + {CS_INTERFACE, "audio class interface"}, + {CS_ENDPOINT, "audio class endpoint"}, + {0,NULL} +}; +static value_string_ext aud_descriptor_type_vals_ext = + VALUE_STRING_EXT_INIT(aud_descriptor_type_vals); + +#define AC_SUBTYPE_HEADER 0x01 +#define AC_SUBTYPE_INPUT_TERMINAL 0x02 +#define AC_SUBTYPE_OUTPUT_TERMINAL 0x03 +#define AC_SUBTYPE_MIXER_UNIT 0x04 +#define AC_SUBTYPE_SELECTOR_UNIT 0x05 +#define AC_SUBTYPE_FEATURE_UNIT 0x06 +#define AC_SUBTYPE_EFFECT_UNIT 0x07 +#define AC_SUBTYPE_PROCESSING_UNIT 0x08 +#define AC_SUBTYPE_EXTENSION_UNIT 0x09 +#define AC_SUBTYPE_CLOCK_SOURCE 0x0A +#define AC_SUBTYPE_CLOCK_SELECTOR 0x0B +#define AC_SUBTYPE_CLOCK_MULTIPLIER 0x0C +#define AC_SUBTYPE_SAMPLE_RATE_CONVERTER 0x0D + +static const value_string ac_subtype_vals[] = { + {AC_SUBTYPE_HEADER, "Header Descriptor"}, + {AC_SUBTYPE_INPUT_TERMINAL, "Input terminal descriptor"}, + {AC_SUBTYPE_OUTPUT_TERMINAL, "Output terminal descriptor"}, + {AC_SUBTYPE_MIXER_UNIT, "Mixer unit descriptor"}, + {AC_SUBTYPE_SELECTOR_UNIT, "Selector unit descriptor"}, + {AC_SUBTYPE_FEATURE_UNIT, "Feature unit descriptor"}, + {AC_SUBTYPE_EFFECT_UNIT, "Effect unit descriptor"}, + {AC_SUBTYPE_PROCESSING_UNIT, "Processing unit descriptor"}, + {AC_SUBTYPE_EXTENSION_UNIT, "Extension unit descriptor"}, + {AC_SUBTYPE_CLOCK_SOURCE, "Clock source descriptor"}, + {AC_SUBTYPE_CLOCK_SELECTOR, "Clock selector descriptor"}, + {AC_SUBTYPE_CLOCK_MULTIPLIER, "Clock multiplier descriptor"}, + {AC_SUBTYPE_SAMPLE_RATE_CONVERTER, "Sample rate converter descriptor"}, + {0,NULL} +}; +static value_string_ext ac_subtype_vals_ext = + VALUE_STRING_EXT_INIT(ac_subtype_vals); + +#define AS_SUBTYPE_GENERAL 0x01 +#define AS_SUBTYPE_FORMAT_TYPE 0x02 +#define AS_SUBTYPE_ENCODER 0x03 + +static const value_string as_subtype_vals[] = { + {AS_SUBTYPE_GENERAL, "General AS Descriptor"}, + {AS_SUBTYPE_FORMAT_TYPE, "Format type descriptor"}, + {AS_SUBTYPE_ENCODER, "Encoder descriptor"}, + {0,NULL} +}; +static value_string_ext as_subtype_vals_ext = + VALUE_STRING_EXT_INIT(as_subtype_vals); + +#define AS_EP_SUBTYPE_GENERAL 0x01 +static const value_string as_ep_subtype_vals[] = { + {AS_EP_SUBTYPE_GENERAL, "General Descriptor"}, + {0,NULL} +}; + +#define MS_IF_SUBTYPE_HEADER 0x01 +#define MS_IF_SUBTYPE_MIDI_IN_JACK 0x02 +#define MS_IF_SUBTYPE_MIDI_OUT_JACK 0x03 +#define MS_IF_SUBTYPE_ELEMENT 0x04 +static const value_string ms_if_subtype_vals[] = { + {MS_IF_SUBTYPE_HEADER, "Header Descriptor"}, + {MS_IF_SUBTYPE_MIDI_IN_JACK, "MIDI IN Jack descriptor"}, + {MS_IF_SUBTYPE_MIDI_OUT_JACK, "MIDI OUT Jack descriptor"}, + {MS_IF_SUBTYPE_ELEMENT, "MIDI Element descriptor"}, + {0,NULL} +}; +static value_string_ext ms_if_subtype_vals_ext = + VALUE_STRING_EXT_INIT(ms_if_subtype_vals); + +#define MS_MIDI_JACK_TYPE_EMBEDDED 0x01 +#define MS_MIDI_JACK_TYPE_EXTERNAL 0x02 +static const value_string ms_midi_jack_type_vals[] = { + {MS_MIDI_JACK_TYPE_EMBEDDED, "Embedded"}, + {MS_MIDI_JACK_TYPE_EXTERNAL, "External"}, + {0,NULL} +}; + +#define MS_EP_SUBTYPE_GENERAL 0x01 +static const value_string ms_ep_subtype_vals[] = { + {MS_EP_SUBTYPE_GENERAL, "General Descriptor"}, + {0,NULL} +}; + +/* Table A-7: Audio Function Category Codes */ +static const value_string audio_function_categories_vals[] = { + {0x00, "Undefined"}, + {0x01, "Desktop speaker"}, + {0x02, "Home theater"}, + {0x03, "Microphone"}, + {0x04, "Headset"}, + {0x05, "Telephone"}, + {0x06, "Converter"}, + {0x07, "Voice/Sound recorder"}, + {0x08, "I/O box"}, + {0x09, "Musical instrument"}, + {0x0A, "Pro-audio"}, + {0x0B, "Audio/Video"}, + {0x0C, "Control panel"}, + {0xFF, "Other"}, + {0,NULL} +}; +static value_string_ext audio_function_categories_vals_ext = + VALUE_STRING_EXT_INIT(audio_function_categories_vals); + +/* Described in 4.7.2 Class-Specific AC Interface Descriptor */ +static const value_string controls_capabilities_vals[] = { + {0x00, "Not present"}, + {0x01, "Present, read-only"}, + {0x02, "Value not allowed"}, + {0x03, "Host programmable"}, + {0,NULL} +}; +static value_string_ext controls_capabilities_vals_ext = + VALUE_STRING_EXT_INIT(controls_capabilities_vals); + +/* Described in 4.9.2 Class-Specific AS Interface Descriptor */ +static const value_string controls_capabilities_read_only_vals[] = { + {0x00, "Not present"}, + {0x01, "Present, read-only"}, + {0x02, "Value not allowed"}, + {0x03, "Value not allowed"}, + {0,NULL} +}; +static value_string_ext controls_capabilities_read_only_vals_ext = + VALUE_STRING_EXT_INIT(controls_capabilities_read_only_vals); + +/* Described in 4.7.2.1 Clock Source Descriptor */ +static const value_string clock_types_vals[] = { + {0x00, "External clock"}, + {0x01, "Internal fixed clock"}, + {0x02, "Internal variable clock"}, + {0x03, "Internal programmable clock"}, + {0,NULL} +}; + +static const value_string clock_sync_vals[] = { + {0x00, "Free running"}, + {0x01, "Synchronized to the Start of Frame"}, + {0,NULL} +}; + +static const value_string lock_delay_unit_vals[] = { + {0, "Undefined"}, + {1, "Milliseconds"}, + {2, "Decoded PCM samples"}, + {0,NULL} +}; + +/* From https://www.usb.org/sites/default/files/termt10.pdf */ +static const value_string terminal_types_vals[] = { + /* USB Terminal Types */ + {0x0100, "USB Undefined"}, + {0x0101, "USB Streaming"}, + {0x01FF, "USB vendor specific"}, + /* Input Terminal Tyoes */ + {0x0200, "Input Undefined"}, + {0x0201, "Microphone"}, + {0x0202, "Desktop Microphone"}, + {0x0203, "Personal microphone"}, + {0x0204, "Omni-directional microphone"}, + {0x0205, "Microphone array"}, + {0x0206, "Processing microphone array"}, + {0x0300, "Output Undefined"}, + {0x0301, "Speaker"}, + {0x0302, "Headphones"}, + {0x0303, "Head Mounted Display Audio"}, + {0x0304, "Desktop speaker"}, + {0x0305, "Room speaker"}, + {0x0306, "Communication speaker"}, + {0x0307, "Low frequency effects speaker"}, + /* Bi-directional Terminal Types */ + {0x0400, "Bi-directional Undefined"}, + {0x0401, "Handset"}, + {0x0402, "Headset"}, + {0x0403, "Speakerphone, no echoreduction"}, + {0x0404, "Echo-suppressing speakerphone"}, + {0x0405, "Echo-canceling speakerphone"}, + /* Telephony Terminal Types */ + {0x0500, "Telephony Undefined"}, + {0x0501, "Phone line"}, + {0x0502, "Telephone"}, + {0x0503, "Down Line Pone"}, + /* External Terminal Types */ + {0x0600, "External Undefined"}, + {0x0601, "Analog connector"}, + {0x0602, "Digital audio interface"}, + {0x0603, "Line connector"}, + {0x0604, "Legacy audio connector"}, + {0x0605, "S/PDIF interface"}, + {0x0606, "1394 DA stream"}, + {0x0607, "1394 DV stream soundtrack"}, + /* Embedded Function Terminal Types */ + {0x0700, "Embedded Undefined"}, + {0x0701, "Level Calibration Noise Source"}, + {0x0702, "Equalization Noise"}, + {0x0703, "CD player"}, + {0x0704, "DAT"}, + {0x0705, "DCC"}, + {0x0706, "MiniDisk"}, + {0x0707, "Analog Tape"}, + {0x0708, "Phonograph"}, + {0x0709, "VCR Audio"}, + {0x070A, "Video Disc Audio"}, + {0x070B, "DVD Audio"}, + {0x070C, "TV Tuner Audio"}, + {0x070D, "Satellite Receiver Audio"}, + {0x070E, "Cable Tuner Audio"}, + {0x070F, "DSS Audio"}, + {0x0710, "Radio Receiver"}, + {0x0711, "Radio Transmitter"}, + {0x0712, "Multi-track Recorder"}, + {0x0713, "Synthesizer"}, + {0,NULL} +}; +static value_string_ext terminal_types_vals_ext = + VALUE_STRING_EXT_INIT(terminal_types_vals); + +/* From https://usb.org/sites/default/files/frmts10.pdf */ +static const value_string audio_data_format_tag_vals[] = { + /* Audio Data Format Type I Codes */ + {0x0000, "Type I Undefined"}, + {0x0001, "PCM"}, + {0x0002, "PCM8"}, + {0x0003, "IEEE Float"}, + {0x0004, "ALAW"}, + {0x0005, "MULAW"}, + /* Audio Data Format Type II Codes */ + {0x1000, "Type II Undefined"}, + {0x1001, "MPEG"}, + {0x1002, "AC-3"}, + /* Audio Data Format Type III Codes */ + {0x2000, "Type III Undefined"}, + {0x2001, "IEC1937 AC-3"}, + {0x2002, "IEC1937 MPEG-1 Layer1"}, + {0x2003, "IEC1937 MPEG-1 Layer2/3 or IEC1937 MPEG-2 NOEXT"}, + {0x2004, "IEC1937 MPEG-2 EXT"}, + {0x2005, "IEC1937 MPEG-2 Layer1 LS"}, + {0x2006, "IEC1937 MPEG-2 Layer2/3 LS"}, + {0,NULL} +}; +static value_string_ext audio_data_format_tag_vals_ext = + VALUE_STRING_EXT_INIT(audio_data_format_tag_vals); + +typedef struct _audio_conv_info_t { + /* the major version of the USB audio class specification, + taken from the AC header descriptor */ + guint8 audio_ver_major; + /* the major version of the USB Device Class Definition for + MIDI Devices, taken from the MS header descriptor */ + guint8 midi_ver_major; +} audio_conv_info_t; + +static int hf_sysex_msg_fragments = -1; +static int hf_sysex_msg_fragment = -1; +static int hf_sysex_msg_fragment_overlap = -1; +static int hf_sysex_msg_fragment_overlap_conflicts = -1; +static int hf_sysex_msg_fragment_multiple_tails = -1; +static int hf_sysex_msg_fragment_too_long_fragment = -1; +static int hf_sysex_msg_fragment_error = -1; +static int hf_sysex_msg_fragment_count = -1; +static int hf_sysex_msg_reassembled_in = -1; +static int hf_sysex_msg_reassembled_length = -1; +static int hf_sysex_msg_reassembled_data = -1; + +static gint ett_sysex_msg_fragment = -1; +static gint ett_sysex_msg_fragments = -1; + +static expert_field ei_usb_audio_undecoded = EI_INIT; +static expert_field ei_usb_audio_invalid_feature_unit_length = EI_INIT; +static expert_field ei_usb_audio_invalid_type_3_ft_nrchannels = EI_INIT; +static expert_field ei_usb_audio_invalid_type_3_ft_subframesize = EI_INIT; +static expert_field ei_usb_audio_invalid_type_3_ft_bitresolution = EI_INIT; + +static const fragment_items sysex_msg_frag_items = { + /* Fragment subtrees */ + &ett_sysex_msg_fragment, + &ett_sysex_msg_fragments, + /* Fragment fields */ + &hf_sysex_msg_fragments, + &hf_sysex_msg_fragment, + &hf_sysex_msg_fragment_overlap, + &hf_sysex_msg_fragment_overlap_conflicts, + &hf_sysex_msg_fragment_multiple_tails, + &hf_sysex_msg_fragment_too_long_fragment, + &hf_sysex_msg_fragment_error, + &hf_sysex_msg_fragment_count, + /* Reassembled in field */ + &hf_sysex_msg_reassembled_in, + /* Reassembled length field */ + &hf_sysex_msg_reassembled_length, + &hf_sysex_msg_reassembled_data, + /* Tag */ + "Message fragments" +}; + +static gint +get_midi_event_size(guint8 code) +{ + switch (code) + { + case 0x0: /* Miscellaneous function codes. Reserved for future extensions. */ + case 0x1: /* Cable events. Reserved for future expansion. */ + /* The Event size can be 1, 2 or 3 bytes. Assume 3. */ + return 3; + case 0x5: /* Single-byte System Common Message or SysEx ends with following single byte. */ + case 0xF: /* Single Byte */ + return 1; + case 0x2: /* 2 Two-byte System Common messages like MTC, SongSelect, etc. */ + case 0x6: /* SysEx ends with following two bytes. */ + case 0xC: /* Program Change */ + case 0xD: /* Channel Pressure */ + return 2; + case 0x3: /* Three-byte System Common messages like SPP, etc. */ + case 0x4: /* SysEx starts or continues */ + case 0x7: /* SysEx ends with following three bytes. */ + case 0x8: /* Note-off */ + case 0x9: /* Note-on */ + case 0xA: /* Poly-KeyPress */ + case 0xB: /* Control Change */ + case 0xE: /* PitchBend Change */ + return 3; + default: + /* Invalid Code Index Number */ + return 0; + } +} + +static inline gboolean +is_sysex_code(guint8 code) +{ + return (code == 0x04 || code == 0x05 || code == 0x06 || code == 0x07); +} + +static gboolean +is_last_sysex_packet_in_tvb(tvbuff_t *tvb, gint offset) +{ + gboolean last = TRUE; + gint length = tvb_reported_length(tvb); + + offset += 4; + while (offset < length) + { + guint8 code = tvb_get_guint8(tvb, offset); + code &= 0x0F; + + if (is_sysex_code(code)) + { + last = FALSE; + break; + } + + offset += 4; + } + + return last; +} + +static void +dissect_usb_midi_event(tvbuff_t *tvb, packet_info *pinfo, + proto_tree *parent_tree, + gint offset) +{ + guint8 code; + guint8 cable; + gboolean save_fragmented; + proto_tree *tree = NULL; + + code = tvb_get_guint8(tvb, offset); + cable = (code & 0xF0) >> 4; + code &= 0x0F; + + if (parent_tree) + { + proto_item *ti; + gint event_size, padding_size; + + ti = proto_tree_add_protocol_format(parent_tree, proto_usb_audio, tvb, offset, 4, "USB Midi Event Packet: %s", + try_val_to_str(code, code_index_vals)); + tree = proto_item_add_subtree(ti, ett_usb_audio); + proto_tree_add_item(tree, hf_midi_cable_number, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_midi_code_index, tvb, offset, 1, ENC_BIG_ENDIAN); + + event_size = get_midi_event_size(code); + padding_size = 3 - event_size; + if (event_size > 0) + { + /* TODO: Create MIDI dissector and pass the event data to it */ + const guint8 *event_data = tvb_get_ptr(tvb, offset+1, event_size); + proto_tree_add_bytes(tree, hf_midi_event, tvb, offset+1, event_size, event_data); + } + if (padding_size > 0) + { + const guint8 *padding = tvb_get_ptr(tvb, offset+1+event_size, padding_size); + proto_tree_add_bytes(tree, hf_midi_padding, tvb, offset+1+event_size, padding_size, padding); + } + } + + save_fragmented = pinfo->fragmented; + + /* Reassemble SysEx commands */ + if (is_sysex_code(code)) + { + tvbuff_t* new_tvb = NULL; + fragment_head *frag_sysex_msg = NULL; + + pinfo->fragmented = TRUE; + + if (code == 0x04) + { + frag_sysex_msg = fragment_add_seq_next(&midi_data_reassembly_table, + tvb, offset+1, + pinfo, + cable, /* ID for fragments belonging together */ + NULL, + 3, + TRUE); + } + else + { + frag_sysex_msg = fragment_add_seq_next(&midi_data_reassembly_table, + tvb, offset+1, + 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, 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; +} + +static audio_conv_info_t* +allocate_audio_conv_info(void) +{ + audio_conv_info_t *info = wmem_new(wmem_file_scope(), audio_conv_info_t); + info->audio_ver_major = 0; + info->midi_ver_major = 0; + return info; +} + +/* 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; + + static int * const bm_controls[] = { + &hf_ac_if_hdr_controls_latency, + &hf_ac_if_hdr_controls_rsv, + NULL + }; + + 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 = allocate_audio_conv_info(); + 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->audio_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++; + } + } + else if (ver_major==2) { + proto_tree_add_item(tree, hf_ac_if_hdr_category, + tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + proto_tree_add_item(tree, hf_ac_if_hdr_total_len, + tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_hdr_controls, + ett_ac_if_hdr_controls, bm_controls, 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) +{ + audio_conv_info_t *audio_conv_info; + gint offset_start; + + static int * const input_wchannelconfig[] = { + &hf_ac_if_input_wchannelconfig_d0, + &hf_ac_if_input_wchannelconfig_d1, + &hf_ac_if_input_wchannelconfig_d2, + &hf_ac_if_input_wchannelconfig_d3, + &hf_ac_if_input_wchannelconfig_d4, + &hf_ac_if_input_wchannelconfig_d5, + &hf_ac_if_input_wchannelconfig_d6, + &hf_ac_if_input_wchannelconfig_d7, + &hf_ac_if_input_wchannelconfig_d8, + &hf_ac_if_input_wchannelconfig_d9, + &hf_ac_if_input_wchannelconfig_d10, + &hf_ac_if_input_wchannelconfig_d11, + &hf_ac_if_input_wchannelconfig_rsv, + NULL + }; + + static int * const input_bmchannelconfig[] = { + &hf_ac_if_input_bmchannelconfig_d0, + &hf_ac_if_input_bmchannelconfig_d1, + &hf_ac_if_input_bmchannelconfig_d2, + &hf_ac_if_input_bmchannelconfig_d3, + &hf_ac_if_input_bmchannelconfig_d4, + &hf_ac_if_input_bmchannelconfig_d5, + &hf_ac_if_input_bmchannelconfig_d6, + &hf_ac_if_input_bmchannelconfig_d7, + &hf_ac_if_input_bmchannelconfig_d8, + &hf_ac_if_input_bmchannelconfig_d9, + &hf_ac_if_input_bmchannelconfig_d10, + &hf_ac_if_input_bmchannelconfig_d11, + &hf_ac_if_input_bmchannelconfig_d12, + &hf_ac_if_input_bmchannelconfig_d13, + &hf_ac_if_input_bmchannelconfig_d14, + &hf_ac_if_input_bmchannelconfig_d15, + &hf_ac_if_input_bmchannelconfig_d16, + &hf_ac_if_input_bmchannelconfig_d17, + &hf_ac_if_input_bmchannelconfig_d18, + &hf_ac_if_input_bmchannelconfig_d19, + &hf_ac_if_input_bmchannelconfig_d20, + &hf_ac_if_input_bmchannelconfig_d21, + &hf_ac_if_input_bmchannelconfig_d22, + &hf_ac_if_input_bmchannelconfig_d23, + &hf_ac_if_input_bmchannelconfig_d24, + &hf_ac_if_input_bmchannelconfig_d25, + &hf_ac_if_input_bmchannelconfig_d26, + &hf_ac_if_input_bmchannelconfig_rsv, + &hf_ac_if_input_bmchannelconfig_d31, + NULL + }; + + static int * const controls[] = { + &hf_ac_if_input_controls_copy, + &hf_ac_if_input_controls_connector, + &hf_ac_if_input_controls_overload, + &hf_ac_if_input_controls_cluster, + &hf_ac_if_input_controls_underflow, + &hf_ac_if_input_controls_overflow, + &hf_ac_if_input_controls_rsv, + NULL + }; + + /* 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; + + /* do not try to dissect unknown versions */ + if (!((audio_conv_info->audio_ver_major==1) || (audio_conv_info->audio_ver_major==2))) + return 0; + + 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; + + if (audio_conv_info->audio_ver_major == 2) { + proto_tree_add_item(tree, hf_ac_if_input_csourceid, 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; + + if (audio_conv_info->audio_ver_major==1) { + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_input_wchannelconfig, ett_ac_if_input_wchannelconfig, input_wchannelconfig, ENC_LITTLE_ENDIAN); + offset += 2; + } else if (audio_conv_info->audio_ver_major==2) { + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_input_bmchannelconfig, ett_ac_if_input_bmchannelconfig, input_bmchannelconfig, ENC_LITTLE_ENDIAN); + offset += 4; + } + + proto_tree_add_item(tree, hf_ac_if_input_channelnames, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + if (audio_conv_info->audio_ver_major==2) { + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_input_controls, ett_ac_if_input_controls, controls, ENC_LITTLE_ENDIAN); + offset += 2; + } + + 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) +{ + audio_conv_info_t *audio_conv_info; + gint offset_start; + + static int * const controls[] = { + &hf_ac_if_output_controls_copy, + &hf_ac_if_output_controls_connector, + &hf_ac_if_output_controls_overload, + &hf_ac_if_output_controls_underflow, + &hf_ac_if_output_controls_overflow, + &hf_ac_if_output_controls_rsv, + NULL + }; + + /* 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; + + /* do not try to dissect unknown versions */ + if (!((audio_conv_info->audio_ver_major==1) || (audio_conv_info->audio_ver_major==2))) + return 0; + + 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; + + if (audio_conv_info->audio_ver_major==2) { + proto_tree_add_item(tree, hf_ac_if_output_clk_sourceid, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_output_controls, ett_ac_if_output_controls, controls, ENC_LITTLE_ENDIAN); + offset += 2; + } + + 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_, guint8 desc_len) +{ + audio_conv_info_t *audio_conv_info; + gint offset_start; + gint i; + gint ch; + guint8 controlsize; + proto_tree *bitmap_tree; + proto_item *ti; + + static int * const 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 int * const fu_controls1[] = { + &hf_ac_if_fu_controls_d8, + &hf_ac_if_fu_controls_d9, + &hf_ac_if_fu_controls_rsv, + NULL }; + + static int * const v2_fu_controls[] = { + &hf_ac_if_fu_controls_v2_d0, + &hf_ac_if_fu_controls_v2_d1, + &hf_ac_if_fu_controls_v2_d2, + &hf_ac_if_fu_controls_v2_d3, + &hf_ac_if_fu_controls_v2_d4, + &hf_ac_if_fu_controls_v2_d5, + &hf_ac_if_fu_controls_v2_d6, + &hf_ac_if_fu_controls_v2_d7, + &hf_ac_if_fu_controls_v2_d8, + &hf_ac_if_fu_controls_v2_d9, + &hf_ac_if_fu_controls_v2_d10, + &hf_ac_if_fu_controls_v2_d11, + &hf_ac_if_fu_controls_v2_d12, + &hf_ac_if_fu_controls_v2_d13, + &hf_ac_if_fu_controls_v2_d14, + &hf_ac_if_fu_controls_v2_rsv, + NULL }; + + /* 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; + + /* do not try to dissect unknown versions */ + if (!((audio_conv_info->audio_ver_major==1) || (audio_conv_info->audio_ver_major==2))) + return 0; + + 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; + + if (audio_conv_info->audio_ver_major==1) { + proto_tree_add_item(tree, hf_ac_if_fu_controlsize, tvb, offset, 1, ENC_LITTLE_ENDIAN); + controlsize = tvb_get_guint8(tvb, offset); + offset += 1; + + /* Descriptor size is 7+(ch+1)*n where n is controlsize, calculate and validate ch */ + ch = (controlsize > 0) ? (((desc_len - 7) / (controlsize)) - 1) : 0; + if (((7 + ((ch + 1) * controlsize)) != desc_len) || (ch < 0) || (controlsize == 0)){ + /* Report malformed packet, do not attempt further dissection */ + proto_tree_add_expert(tree, pinfo, &ei_usb_audio_invalid_feature_unit_length, tvb, offset, desc_len-offset); + offset += desc_len-offset; + return offset-offset_start; + } + + ti = proto_tree_add_item(tree, hf_ac_if_fu_controls, tvb, offset, controlsize * (ch + 1), ENC_NA); + bitmap_tree = proto_item_add_subtree(ti, ett_ac_if_fu_controls); + + /* bmaControls has 1 master channel 0 controls, and variable number of logical channel controls */ + for (i = 0; i < (ch + 1); i++) { + ti = proto_tree_add_bitmask(bitmap_tree, tvb, offset, hf_ac_if_fu_control, ett_ac_if_fu_controls0, fu_controls0, ENC_LITTLE_ENDIAN); + proto_item_prepend_text(ti, "%s channel %d ", (i == 0) ? "Master" : "Logical", i); + if (controlsize > 1) { + ti = proto_tree_add_bitmask(bitmap_tree, tvb, offset + 1, hf_ac_if_fu_control, ett_ac_if_fu_controls1, fu_controls1, ENC_LITTLE_ENDIAN); + proto_item_prepend_text(ti, "%s channel %d", (i == 0) ? "Master" : "Logical", i); + } + offset += controlsize; + } + + } else if (audio_conv_info->audio_ver_major==2) { + /* Descriptor size is 6+(ch+1)*4, calculate and validate ch */ + ch = (desc_len - 6) / 4 - 1; + if (((6 + (ch + 1) * 4) != desc_len) || (ch < 0)) { + /* Report malformed packet, do not attempt further dissection */ + proto_tree_add_expert(tree, pinfo, &ei_usb_audio_invalid_feature_unit_length, tvb, offset, desc_len-offset); + offset += desc_len-offset; + return offset-offset_start; + } + + ti = proto_tree_add_item(tree, hf_ac_if_fu_controls_v2, tvb, offset, 4 * (ch + 1), ENC_NA); + bitmap_tree = proto_item_add_subtree(ti, ett_ac_if_fu_controls_v2); + + for (i = 0; i < (ch + 1); i++) { + ti = proto_tree_add_bitmask(bitmap_tree, tvb, offset, hf_ac_if_fu_control_v2, ett_ac_if_fu_control_v2, v2_fu_controls, ENC_LITTLE_ENDIAN); + proto_item_prepend_text(ti, "%s channel %d ", (i == 0) ? "Master" : "Logical", i); + offset += 4; + } + + } + + 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_selector_unit(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree, usb_conv_info_t *usb_conv_info _U_) +{ + audio_conv_info_t *audio_conv_info; + gint offset_start; + guint32 nrinpins,i; + guint32 source_id; + proto_item *ti; + proto_tree *subtree; + + static int * const controls[] = { + &hf_ac_if_su_controls_d0, + &hf_ac_if_su_controls_rsv, + NULL + }; + + /* 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; + + /* do not try to dissect unknown versions */ + if (!((audio_conv_info->audio_ver_major==1) || (audio_conv_info->audio_ver_major==2))) + return 0; + + offset_start = offset; + + proto_tree_add_item(tree, hf_ac_if_su_unitid, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_item_ret_uint(tree, hf_ac_if_su_nrinpins, tvb, offset, 1, ENC_LITTLE_ENDIAN, &nrinpins); + offset += 1; + + ti = proto_tree_add_bytes_format_value(tree, hf_ac_if_su_sourceids, tvb, offset, nrinpins, NULL, "%s", ""); + subtree = proto_item_add_subtree(ti, ett_ac_if_su_sourceids); + + for (i = 0; i < nrinpins; ++i) { + proto_tree_add_item_ret_uint(subtree, hf_ac_if_su_sourceid, tvb, offset, 1, ENC_LITTLE_ENDIAN, &source_id); + offset += 1; + proto_item_append_text(ti, "%s%d", (i > 0) ? ", " : "", source_id); + } + + if (audio_conv_info->audio_ver_major==2) { + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_su_controls, ett_ac_if_su_controls, controls, ENC_LITTLE_ENDIAN); + offset += 1; + } + + proto_tree_add_item(tree, hf_ac_if_su_iselector, 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 int * const 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_ac_if_clock_source(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, + proto_tree *tree, usb_conv_info_t *usb_conv_info _U_) +{ + gint offset_start; + static int * const cs_attributes[] = { + &hf_ac_if_clksrc_attr_type, + &hf_ac_if_clksrc_attr_d2, + &hf_ac_if_clksrc_attr_rsv, + NULL + }; + static int * const cs_controls[] = { + &hf_ac_if_clksrc_controls_freq, + &hf_ac_if_clksrc_controls_validity, + &hf_ac_if_clksrc_controls_rsv, + NULL + }; + offset_start = offset; + + proto_tree_add_item(tree, hf_ac_if_clksrc_id, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_clksrc_attr, ett_ac_if_clksrc_attr, cs_attributes, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_clksrc_controls, ett_ac_if_clksrc_controls, cs_controls, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_item(tree, hf_ac_if_clksrc_assocterminal, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_item(tree, hf_ac_if_clksrc_clocksource, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + return offset-offset_start; +} + +static gint +dissect_ac_if_clock_selector(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 int * const cs_controls[] = { + &hf_ac_if_clksel_controls_clksel, + &hf_ac_if_clksel_controls_rsv, + NULL + }; + offset_start = offset; + + proto_tree_add_item(tree, hf_ac_if_clksel_id, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_item(tree, hf_ac_if_clksel_nrpins, tvb, offset, 1, ENC_LITTLE_ENDIAN); + nrinpins = tvb_get_guint8(tvb, offset); + offset += 1; + + while (nrinpins) { + proto_tree_add_item(tree, hf_ac_if_clksel_sourceid, tvb, offset, 1, ENC_LITTLE_ENDIAN); + nrinpins--; + offset += 1; + } + + proto_tree_add_bitmask(tree, tvb, offset, hf_ac_if_clksel_controls, ett_ac_if_clksel_controls, cs_controls, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_item(tree, hf_ac_if_clksel_clockselector, 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; + + static int * const v2_controls[] = { + &hf_as_if_gen_controls_active, + &hf_as_if_gen_controls_valid, + &hf_as_if_gen_controls_rsv, + NULL + }; + + static int * const v2_formats_type_i[] = { + &hf_as_if_gen_formats_i_d0, + &hf_as_if_gen_formats_i_d1, + &hf_as_if_gen_formats_i_d2, + &hf_as_if_gen_formats_i_d3, + &hf_as_if_gen_formats_i_d4, + &hf_as_if_gen_formats_i_rsv, + &hf_as_if_gen_formats_i_d31, + NULL + }; + + static int * const v2_formats_type_ii[] = { + &hf_as_if_gen_formats_ii_d0, + &hf_as_if_gen_formats_ii_d1, + &hf_as_if_gen_formats_ii_d2, + &hf_as_if_gen_formats_ii_d3, + &hf_as_if_gen_formats_ii_rsv, + &hf_as_if_gen_formats_ii_d31, + NULL + }; + + static int * const v2_formats_type_iii[] = { + &hf_as_if_gen_formats_iii_d0, + &hf_as_if_gen_formats_iii_d1, + &hf_as_if_gen_formats_iii_d2, + &hf_as_if_gen_formats_iii_d3, + &hf_as_if_gen_formats_iii_d4, + &hf_as_if_gen_formats_iii_d5, + &hf_as_if_gen_formats_iii_d6, + &hf_as_if_gen_formats_iii_d7, + &hf_as_if_gen_formats_iii_d8, + &hf_as_if_gen_formats_iii_d9, + &hf_as_if_gen_formats_iii_d10, + &hf_as_if_gen_formats_iii_d11, + &hf_as_if_gen_formats_iii_d12, + &hf_as_if_gen_formats_iii_rsv, + NULL + }; + + static int * const v2_formats_type_iv[] = { + &hf_as_if_gen_formats_iv_d0, + &hf_as_if_gen_formats_iv_d1, + &hf_as_if_gen_formats_iv_d2, + &hf_as_if_gen_formats_iv_d3, + &hf_as_if_gen_formats_iv_d4, + &hf_as_if_gen_formats_iv_d5, + &hf_as_if_gen_formats_iv_d6, + &hf_as_if_gen_formats_iv_d7, + &hf_as_if_gen_formats_iv_d8, + &hf_as_if_gen_formats_iv_d9, + &hf_as_if_gen_formats_iv_d10, + &hf_as_if_gen_formats_iv_d11, + &hf_as_if_gen_formats_iv_d12, + &hf_as_if_gen_formats_iv_d13, + &hf_as_if_gen_formats_iv_d14, + &hf_as_if_gen_formats_iv_d15, + &hf_as_if_gen_formats_iv_d16, + &hf_as_if_gen_formats_iv_d17, + &hf_as_if_gen_formats_iv_d18, + &hf_as_if_gen_formats_iv_d19, + &hf_as_if_gen_formats_iv_d20, + &hf_as_if_gen_formats_iv_d21, + &hf_as_if_gen_formats_iv_rsv, + NULL + }; + + static int * const v2_channels[] = { + &hf_as_if_gen_bmchannelconfig_d0, + &hf_as_if_gen_bmchannelconfig_d1, + &hf_as_if_gen_bmchannelconfig_d2, + &hf_as_if_gen_bmchannelconfig_d3, + &hf_as_if_gen_bmchannelconfig_d4, + &hf_as_if_gen_bmchannelconfig_d5, + &hf_as_if_gen_bmchannelconfig_d6, + &hf_as_if_gen_bmchannelconfig_d7, + &hf_as_if_gen_bmchannelconfig_d8, + &hf_as_if_gen_bmchannelconfig_d9, + &hf_as_if_gen_bmchannelconfig_d10, + &hf_as_if_gen_bmchannelconfig_d11, + &hf_as_if_gen_bmchannelconfig_d12, + &hf_as_if_gen_bmchannelconfig_d13, + &hf_as_if_gen_bmchannelconfig_d14, + &hf_as_if_gen_bmchannelconfig_d15, + &hf_as_if_gen_bmchannelconfig_d16, + &hf_as_if_gen_bmchannelconfig_d17, + &hf_as_if_gen_bmchannelconfig_d18, + &hf_as_if_gen_bmchannelconfig_d19, + &hf_as_if_gen_bmchannelconfig_d20, + &hf_as_if_gen_bmchannelconfig_d21, + &hf_as_if_gen_bmchannelconfig_d22, + &hf_as_if_gen_bmchannelconfig_d23, + &hf_as_if_gen_bmchannelconfig_d24, + &hf_as_if_gen_bmchannelconfig_d25, + &hf_as_if_gen_bmchannelconfig_d26, + &hf_as_if_gen_bmchannelconfig_rsv, + &hf_as_if_gen_bmchannelconfig_d31, + NULL + }; + + /* 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->audio_ver_major==1) { + proto_tree_add_item(tree, hf_as_if_gen_term_link, 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_wformattag, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + } else if (audio_conv_info->audio_ver_major==2) { + guint8 format_type; + int * const *formats_bitmask; + + proto_tree_add_item(tree, hf_as_if_gen_term_link, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + proto_tree_add_bitmask(tree, tvb, offset, hf_as_if_gen_controls, ett_as_if_gen_controls, v2_controls, ENC_LITTLE_ENDIAN); + offset++; + proto_tree_add_item(tree, hf_as_if_gen_formattype, tvb, offset, 1, ENC_LITTLE_ENDIAN); + format_type = tvb_get_guint8(tvb, offset); + offset++; + switch(format_type) + { + case 1: + formats_bitmask = v2_formats_type_i; + break; + case 2: + formats_bitmask = v2_formats_type_ii; + break; + case 3: + formats_bitmask = v2_formats_type_iii; + break; + case 4: + formats_bitmask = v2_formats_type_iv; + break; + default: + formats_bitmask = NULL; + break; + } + if (formats_bitmask) { + proto_tree_add_bitmask(tree, tvb, offset, hf_as_if_gen_formats, ett_as_if_gen_formats, formats_bitmask, ENC_LITTLE_ENDIAN); + } else { + proto_tree_add_item(tree, hf_as_if_gen_formats, tvb, offset, 4, ENC_LITTLE_ENDIAN); + } + offset += 4; + proto_tree_add_item(tree, hf_as_if_gen_nrchannels, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + proto_tree_add_bitmask(tree, tvb, offset, hf_as_if_gen_bmchannelconfig, ett_as_if_gen_bmchannelconfig, v2_channels, ENC_LITTLE_ENDIAN); + offset += 4; + proto_tree_add_item(tree, hf_as_if_gen_channelnames, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + } + + return offset-offset_start; +} + +static gint +dissect_as_if_format_type_ver1_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, + proto_tree *tree, audio_conv_info_t *audio_conv_info _U_) +{ + gint offset_start; + guint8 SamFreqType; + guint8 format_type; + guint32 nrchannels; + guint32 subframesize; + guint32 bitresolution; + proto_item *desc_tree_item; + + 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; + case 3: + desc_tree_item = proto_tree_add_item_ret_uint(tree, hf_as_if_ft_nrchannels, tvb, offset, 1, ENC_LITTLE_ENDIAN, &nrchannels); + offset += 1; + + if(nrchannels != 2){ + expert_add_info(pinfo, desc_tree_item, &ei_usb_audio_invalid_type_3_ft_nrchannels); + } + + desc_tree_item = proto_tree_add_item_ret_uint(tree, hf_as_if_ft_subframesize, tvb, offset, 1, ENC_LITTLE_ENDIAN, &subframesize); + offset += 1; + + if(subframesize != 2){ + expert_add_info(pinfo, desc_tree_item, &ei_usb_audio_invalid_type_3_ft_subframesize); + } + + desc_tree_item = proto_tree_add_item_ret_uint(tree, hf_as_if_ft_bitresolution, tvb, offset, 1, ENC_LITTLE_ENDIAN, &bitresolution); + offset += 1; + + if(bitresolution != 16){ + expert_add_info(pinfo, desc_tree_item, &ei_usb_audio_invalid_type_3_ft_bitresolution); + } + + 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_as_if_format_type_ver2_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, + proto_tree *tree, audio_conv_info_t *audio_conv_info _U_) +{ + gint offset_start; + guint8 format_type; + + 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++; + + if (format_type==1) { + proto_tree_add_item(tree, hf_as_if_ft_subslotsize, 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; + } + + return offset-offset_start; +} + +static gint +dissect_as_if_format_type_body(tvbuff_t *tvb, gint offset, packet_info *pinfo, + proto_tree *tree, usb_conv_info_t *usb_conv_info) +{ + audio_conv_info_t *audio_conv_info; + + /* 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; + + if (audio_conv_info->audio_ver_major==1) { + return dissect_as_if_format_type_ver1_body(tvb, offset, pinfo, tree, audio_conv_info); + } else if (audio_conv_info->audio_ver_major==2) { + return dissect_as_if_format_type_ver2_body(tvb, offset, pinfo, tree, audio_conv_info); + } + + return 0; +} + +static gint +dissect_as_ep_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 = offset; + + static int * const v1_attributes[] = { + &hf_as_ep_gen_bmattributes_d0, + &hf_as_ep_gen_bmattributes_d1, + &hf_as_ep_gen_bmattributes_rsv, + &hf_as_ep_gen_bmattributes_d7, + NULL + }; + static int * const v2_attributes[] = { + &hf_as_ep_gen_bmattributes_d7, + NULL + }; + static int * const controls[] = { + &hf_as_ep_gen_controls_pitch, + &hf_as_ep_gen_controls_data_overrun, + &hf_as_ep_gen_controls_data_underrun, + &hf_as_ep_gen_controls_rsv, + NULL + }; + + /* 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; + + /* do not try to dissect unknown versions */ + if (!((audio_conv_info->audio_ver_major==1) || (audio_conv_info->audio_ver_major==2))) + return 0; + + if (audio_conv_info->audio_ver_major==1) { + proto_tree_add_bitmask(tree, tvb, offset, hf_as_ep_gen_bmattributes, ett_as_ep_gen_attributes, v1_attributes, ENC_LITTLE_ENDIAN); + offset++; + } else if (audio_conv_info->audio_ver_major==2) { + proto_tree_add_bitmask(tree, tvb, offset, hf_as_ep_gen_bmattributes, ett_as_ep_gen_attributes, v2_attributes, ENC_LITTLE_ENDIAN); + offset++; + proto_tree_add_bitmask(tree, tvb, offset, hf_as_ep_gen_controls, ett_as_ep_gen_controls, controls, ENC_LITTLE_ENDIAN); + offset++; + } + + proto_tree_add_item(tree, hf_as_ep_gen_lockdelayunits, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + proto_tree_add_item(tree, hf_as_ep_gen_lockdelay, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + + return offset-offset_start; +} + +static gint +dissect_ms_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; + 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_ms_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 = allocate_audio_conv_info(); + usb_conv_info->class_data = audio_conv_info; + usb_conv_info->class_data_type = USB_CONV_AUDIO; + } 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->midi_ver_major = ver_major; + offset += 2; + + proto_tree_add_item(tree, hf_ms_if_hdr_total_len, + tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + + return offset-offset_start; +} + +static gint +dissect_ms_if_midi_in_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, + proto_tree *tree, usb_conv_info_t *usb_conv_info _U_) +{ + gint offset_start = offset; + + proto_tree_add_item(tree, hf_ms_if_midi_in_bjacktype, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + proto_tree_add_item(tree, hf_ms_if_midi_in_bjackid, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + proto_tree_add_item(tree, hf_ms_if_midi_in_ijack, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + return offset-offset_start; +} + +static gint +dissect_ms_if_midi_out_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, + proto_tree *tree, usb_conv_info_t *usb_conv_info _U_) +{ + gint offset_start = offset; + guint8 nrinputpins; + + proto_tree_add_item(tree, hf_ms_if_midi_out_bjacktype, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + proto_tree_add_item(tree, hf_ms_if_midi_out_bjackid, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + proto_tree_add_item(tree, hf_ms_if_midi_out_bnrinputpins, tvb, offset, 1, ENC_LITTLE_ENDIAN); + nrinputpins = tvb_get_guint8(tvb, offset); + offset += 1; + while (nrinputpins) + { + proto_tree_add_item(tree, hf_ms_if_midi_out_basourceid, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + proto_tree_add_item(tree, hf_ms_if_midi_out_basourcepin, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + nrinputpins--; + } + + proto_tree_add_item(tree, hf_ms_if_midi_out_ijack, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + + return offset-offset_start; +} + +static gint +dissect_ms_ep_general_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, + proto_tree *tree, usb_conv_info_t *usb_conv_info _U_) +{ + gint offset_start = offset; + guint8 numjacks; + + proto_tree_add_item(tree, hf_ms_ep_gen_numjacks, tvb, offset, 1, ENC_LITTLE_ENDIAN); + numjacks = tvb_get_guint8(tvb, offset); + offset += 1; + while (numjacks) + { + proto_tree_add_item(tree, hf_ms_ep_gen_baassocjackid, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + numjacks--; + } + + return offset-offset_start; +} + +static gint +dissect_usb_audio_descriptor(tvbuff_t *tvb, packet_info *pinfo, + proto_tree *tree, void *data) +{ + gint offset = 0; + gint bytes_dissected = 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++; + + bytes_dissected = 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 */ + bytes_dissected += dissect_ac_if_hdr_body(tvb, offset, pinfo, desc_tree, usb_conv_info); + break; + case AC_SUBTYPE_INPUT_TERMINAL: + bytes_dissected += dissect_ac_if_input_terminal(tvb, offset, pinfo, desc_tree, usb_conv_info); + break; + case AC_SUBTYPE_OUTPUT_TERMINAL: + bytes_dissected += dissect_ac_if_output_terminal(tvb, offset, pinfo, desc_tree, usb_conv_info); + break; + case AC_SUBTYPE_MIXER_UNIT: + bytes_dissected += dissect_ac_if_mixed_unit(tvb, offset, pinfo, desc_tree, usb_conv_info); + break; + case AC_SUBTYPE_SELECTOR_UNIT: + bytes_dissected += dissect_ac_if_selector_unit(tvb, offset, pinfo, desc_tree, usb_conv_info); + break; + case AC_SUBTYPE_FEATURE_UNIT: + bytes_dissected += dissect_ac_if_feature_unit(tvb, offset, pinfo, desc_tree, usb_conv_info, desc_len); + break; + case AC_SUBTYPE_CLOCK_SOURCE: + bytes_dissected += dissect_ac_if_clock_source(tvb, offset, pinfo, desc_tree, usb_conv_info); + break; + case AC_SUBTYPE_CLOCK_SELECTOR: + bytes_dissected += dissect_ac_if_clock_selector(tvb, offset, pinfo, desc_tree, usb_conv_info); + break; + default: + 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++; + + bytes_dissected = offset; + switch(desc_subtype) { + case AS_SUBTYPE_GENERAL: + bytes_dissected += dissect_as_if_general_body(tvb, offset, pinfo, + desc_tree, usb_conv_info); + break; + case AS_SUBTYPE_FORMAT_TYPE: + bytes_dissected += dissect_as_if_format_type_body(tvb, offset, pinfo, + desc_tree, usb_conv_info); + break; + default: + 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; + + desc_subtype = tvb_get_guint8(tvb, offset); + proto_tree_add_item(desc_tree, hf_as_ep_desc_subtype, + tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + + bytes_dissected = offset; + switch(desc_subtype) { + case AS_EP_SUBTYPE_GENERAL: + bytes_dissected += dissect_as_ep_general_body(tvb, offset, pinfo, + desc_tree, usb_conv_info); + break; + default: + break; + } + } + else if (desc_type==CS_INTERFACE && + usb_conv_info->interfaceSubclass==AUDIO_IF_SUBCLASS_MIDISTREAMING) { + desc_tree = proto_tree_add_subtree(tree, tvb, offset, desc_len, + ett_usb_audio_desc, &desc_tree_item, + "Class-specific MIDI 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_ms_if_desc_subtype, + tvb, offset, 1, ENC_LITTLE_ENDIAN); + subtype_str = try_val_to_str_ext(desc_subtype, &ms_if_subtype_vals_ext); + if (subtype_str) + proto_item_append_text(desc_tree_item, ": %s", subtype_str); + offset++; + + bytes_dissected = offset; + switch(desc_subtype) { + case MS_IF_SUBTYPE_HEADER: + bytes_dissected += dissect_ms_if_hdr_body(tvb, offset, pinfo, + desc_tree, usb_conv_info); + break; + case MS_IF_SUBTYPE_MIDI_IN_JACK: + bytes_dissected += dissect_ms_if_midi_in_body(tvb, offset, pinfo, + desc_tree, usb_conv_info); + break; + case MS_IF_SUBTYPE_MIDI_OUT_JACK: + bytes_dissected += dissect_ms_if_midi_out_body(tvb, offset, pinfo, + desc_tree, usb_conv_info); + break; + default: + break; + } + } + else if (desc_type==CS_ENDPOINT && + usb_conv_info->interfaceSubclass==AUDIO_IF_SUBCLASS_MIDISTREAMING) { + desc_tree = proto_tree_add_subtree(tree, tvb, offset, desc_len, + ett_usb_audio_desc, &desc_tree_item, + "Class-specific MIDI Streaming Endpoint 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_ms_ep_desc_subtype, + tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + + bytes_dissected = offset; + switch(desc_subtype) { + case MS_EP_SUBTYPE_GENERAL: + bytes_dissected += dissect_ms_ep_general_body(tvb, offset, pinfo, + desc_tree, usb_conv_info); + break; + default: + break; + } + } + else + return 0; + + if (bytes_dissected < desc_len) { + proto_tree_add_expert(desc_tree, pinfo, &ei_usb_audio_undecoded, tvb, bytes_dissected, desc_len-bytes_dissected); + } + 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; + 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"); + + 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, parent_tree, offset); + offset += 4; + } + break; + default: + proto_tree_add_expert(parent_tree, pinfo, &ei_usb_audio_undecoded, tvb, offset, length); + } + + return length; +} + +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_BYTES, BASE_NONE, + NULL, 0x0, NULL, HFILL }}, + { &hf_midi_padding, + { "Padding", "usbaudio.midi.padding", FT_BYTES, BASE_NONE, + NULL, 0x0, "Must be zero", HFILL }}, + + { &hf_ac_if_desc_subtype, + { "Subtype", "usbaudio.ac_if_subtype", FT_UINT8, BASE_HEX|BASE_EXT_STRING, + &ac_subtype_vals_ext, 0x0, "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, 0x0, "wTotalLength", HFILL }}, + { &hf_ac_if_hdr_bInCollection, + { "Total number of interfaces", "usbaudio.ac_if_hdr.bInCollection", + FT_UINT8, BASE_DEC, NULL, 0x0, "bInCollection", HFILL }}, + { &hf_ac_if_hdr_if_num, + { "Interface number", "usbaudio.ac_if_hdr.baInterfaceNr", + FT_UINT8, BASE_DEC, NULL, 0x0, "baInterfaceNr", HFILL }}, + { &hf_ac_if_hdr_category, + { "Category", "usbaudio.ac_if_hdr.bCategory", + FT_UINT8, BASE_HEX|BASE_EXT_STRING, &audio_function_categories_vals_ext, 0x00, "bCategory", HFILL }}, + { &hf_ac_if_hdr_controls, + { "Controls", "usbaudio.ac_if_hdr.bmControls", + FT_UINT8, BASE_HEX, NULL, 0x0, "bmControls", HFILL }}, + { &hf_ac_if_hdr_controls_latency, + { "Latency Control", "usbaudio.ac_if_hdr.bmControls.latency", + FT_UINT8, BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x03, NULL, HFILL }}, + { &hf_ac_if_hdr_controls_rsv, + { "Reserved", "usbaudio.ac_if_hdr.bmControls.rsv", + FT_UINT8, BASE_HEX, NULL, 0xFC, "Must be zero", HFILL }}, + { &hf_ac_if_input_terminalid, + { "Terminal ID", "usbaudio.ac_if_input.bTerminalID", + FT_UINT8, BASE_DEC, NULL, 0x0, "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, 0x0, "bAssocTerminal", HFILL }}, + { &hf_ac_if_input_csourceid, + { "Connected Clock Entity", "usbaudio.ac_if_input.bCSourceID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bCSourceID", HFILL }}, + { &hf_ac_if_input_nrchannels, + { "Number Channels", "usbaudio.ac_if_input.bNrChannels", + FT_UINT8, BASE_DEC, NULL, 0x0, "bNrChannels", HFILL }}, + { &hf_ac_if_input_wchannelconfig, + { "Channel Config", "usbaudio.ac_if_input.wChannelConfig", + FT_UINT16, BASE_HEX, NULL, 0x0, "wChannelConfig", HFILL }}, + { &hf_ac_if_input_wchannelconfig_d0, + { "Left Front", "usbaudio.ac_if_input.wChannelConfig.d0", + FT_BOOLEAN, 16, NULL, 0x0001, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d1, + { "Right Front", "usbaudio.ac_if_input.wChannelConfig.d1", + FT_BOOLEAN, 16, NULL, 0x0002, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d2, + { "Center Front", "usbaudio.ac_if_input.wChannelConfig.d2", + FT_BOOLEAN, 16, NULL, 0x0004, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d3, + { "Low Frequency Enhancement", "usbaudio.ac_if_input.wChannelConfig.d3", + FT_BOOLEAN, 16, NULL, 0x0008, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d4, + { "Left Surround", "usbaudio.ac_if_input.wChannelConfig.d4", + FT_BOOLEAN, 16, NULL, 0x0010, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d5, + { "Right Surround", "usbaudio.ac_if_input.wChannelConfig.d5", + FT_BOOLEAN, 16, NULL, 0x0020, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d6, + { "Left of Center", "usbaudio.ac_if_input.wChannelConfig.d6", + FT_BOOLEAN, 16, NULL, 0x0040, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d7, + { "Right of Center", "usbaudio.ac_if_input.wChannelConfig.d7", + FT_BOOLEAN, 16, NULL, 0x0080, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d8, + { "Surround", "usbaudio.ac_if_input.wChannelConfig.d8", + FT_BOOLEAN, 16, NULL, 0x0100, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d9, + { "Side Left", "usbaudio.ac_if_input.wChannelConfig.d9", + FT_BOOLEAN, 16, NULL, 0x0200, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d10, + { "Side Right", "usbaudio.ac_if_input.wChannelConfig.d10", + FT_BOOLEAN, 16, NULL, 0x0400, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_d11, + { "Top", "usbaudio.ac_if_input.wChannelConfig.d11", + FT_BOOLEAN, 16, NULL, 0x0800, NULL, HFILL }}, + { &hf_ac_if_input_wchannelconfig_rsv, + { "Reserved", "usbaudio.ac_if_input.wChannelConfig.rsv", + FT_UINT16, BASE_HEX, NULL, 0xF000, NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig, + { "Channel Config", "usbaudio.ac_if_input.bmChannelConfig", + FT_UINT32, BASE_HEX, NULL, 0x0, "bmChannelConfig", HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d0, + { "Front Left", "usbaudio.ac_if_input.bmChannelConfig.d0", + FT_BOOLEAN, 32, NULL, (1u << 0), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d1, + { "Front Right", "usbaudio.ac_if_input.bmChannelConfig.d1", + FT_BOOLEAN, 32, NULL, (1u << 1), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d2, + { "Front Center", "usbaudio.ac_if_input.bmChannelConfig.d2", + FT_BOOLEAN, 32, NULL, (1u << 2), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d3, + { "Low Frequency Effects", "usbaudio.ac_if_input.bmChannelConfig.d3", + FT_BOOLEAN, 32, NULL, (1u << 3), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d4, + { "Back Left", "usbaudio.ac_if_input.bmChannelConfig.d4", + FT_BOOLEAN, 32, NULL, (1u << 4), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d5, + { "Back Right", "usbaudio.ac_if_input.bmChannelConfig.d5", + FT_BOOLEAN, 32, NULL, (1u << 5), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d6, + { "Front Left of Center", "usbaudio.ac_if_input.bmChannelConfig.d6", + FT_BOOLEAN, 32, NULL, (1u << 6), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d7, + { "Front Right of Center", "usbaudio.ac_if_input.bmChannelConfig.d7", + FT_BOOLEAN, 32, NULL, (1u << 7), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d8, + { "Back Center", "usbaudio.ac_if_input.bmChannelConfig.d8", + FT_BOOLEAN, 32, NULL, (1u << 8), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d9, + { "Side Left", "usbaudio.ac_if_input.bmChannelConfig.d9", + FT_BOOLEAN, 32, NULL, (1u << 9), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d10, + { "Side Right", "usbaudio.ac_if_input.bmChannelConfig.d10", + FT_BOOLEAN, 32, NULL, (1u << 10), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d11, + { "Top Center", "usbaudio.ac_if_input.bmChannelConfig.d11", + FT_BOOLEAN, 32, NULL, (1u << 11), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d12, + { "Top Front Left", "usbaudio.ac_if_input.bmChannelConfig.d12", + FT_BOOLEAN, 32, NULL, (1u << 12), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d13, + { "Top Front Center", "usbaudio.ac_if_input.bmChannelConfig.d13", + FT_BOOLEAN, 32, NULL, (1u << 13), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d14, + { "Top Front Right", "usbaudio.ac_if_input.bmChannelConfig.d14", + FT_BOOLEAN, 32, NULL, (1u << 14), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d15, + { "Top Back Left", "usbaudio.ac_if_input.bmChannelConfig.d15", + FT_BOOLEAN, 32, NULL, (1u << 15), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d16, + { "Top Back Center", "usbaudio.ac_if_input.bmChannelConfig.d16", + FT_BOOLEAN, 32, NULL, (1u << 16), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d17, + { "Top Back Right", "usbaudio.ac_if_input.bmChannelConfig.d17", + FT_BOOLEAN, 32, NULL, (1u << 17), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d18, + { "Top Front Left of Center", "usbaudio.ac_if_input.bmChannelConfig.d18", + FT_BOOLEAN, 32, NULL, (1u << 18), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d19, + { "Top Front Right of Center", "usbaudio.ac_if_input.bmChannelConfig.d19", + FT_BOOLEAN, 32, NULL, (1u << 19), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d20, + { "Left Low Frequency Effects", "usbaudio.ac_if_input.bmChannelConfig.d20", + FT_BOOLEAN, 32, NULL, (1u << 20), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d21, + { "Right Low Frequency Effects", "usbaudio.ac_if_input.bmChannelConfig.d21", + FT_BOOLEAN, 32, NULL, (1u << 21), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d22, + { "Top Side Left", "usbaudio.ac_if_input.bmChannelConfig.d22", + FT_BOOLEAN, 32, NULL, (1u << 22), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d23, + { "Top Side Right", "usbaudio.ac_if_input.bmChannelConfig.d23", + FT_BOOLEAN, 32, NULL, (1u << 23), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d24, + { "Bottom Center", "usbaudio.ac_if_input.bmChannelConfig.d24", + FT_BOOLEAN, 32, NULL, (1u << 24), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d25, + { "Back Left of Center", "usbaudio.ac_if_input.bmChannelConfig.d25", + FT_BOOLEAN, 32, NULL, (1u << 25), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d26, + { "Back Right of Center", "usbaudio.ac_if_input.bmChannelConfig.d26", + FT_BOOLEAN, 32, NULL, (1u << 26), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_rsv, + { "Reserved", "usbaudio.ac_if_input.bmChannelConfig.rsv", + FT_BOOLEAN, 32, NULL, (0xFu << 27), NULL, HFILL }}, + { &hf_ac_if_input_bmchannelconfig_d31, + { "Raw Data", "usbaudio.ac_if_input.bmChannelConfig.d31", + FT_BOOLEAN, 32, NULL, (1u << 31), NULL, HFILL }}, + { &hf_ac_if_input_channelnames, + { "Channel Names", "usbaudio.ac_if_input.iChannelNames", + FT_UINT8, BASE_DEC, NULL, 0x0, "iChannelNames", HFILL }}, + { &hf_ac_if_input_controls, + { "Controls", "usbaudio.ac_if_input.bmControls", + FT_UINT16, BASE_HEX, NULL, 0x0, "bmControls", HFILL }}, + { &hf_ac_if_input_controls_copy, + { "Copy Protect Control", "usbaudio.ac_if_input.bmControls.copy", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0003, NULL, HFILL }}, + { &hf_ac_if_input_controls_connector, + { "Connector Control", "usbaudio.ac_if_input.bmControls.connector", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x000C, NULL, HFILL }}, + { &hf_ac_if_input_controls_overload, + { "Overload Control", "usbaudio.ac_if_input.bmControls.overload", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0030, NULL, HFILL }}, + { &hf_ac_if_input_controls_cluster, + { "Cluster Control", "usbaudio.ac_if_input.bmControls.cluster", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x00C0, NULL, HFILL }}, + { &hf_ac_if_input_controls_underflow, + { "Underflow Control", "usbaudio.ac_if_input.bmControls.underflow", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0300, NULL, HFILL }}, + { &hf_ac_if_input_controls_overflow, + { "Overflow Control", "usbaudio.ac_if_input.bmControls.overflow", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0C00, NULL, HFILL }}, + { &hf_ac_if_input_controls_rsv, + { "Reserved", "usbaudio.ac_if_input.bmControls.rsv", + FT_UINT16, BASE_HEX, NULL, 0xF000, "Must be zero", HFILL }}, + { &hf_ac_if_input_terminal, + { "String descriptor index", "usbaudio.ac_if_input.iTerminal", + FT_UINT8, BASE_DEC, NULL, 0x0, "iTerminal", HFILL }}, + { &hf_ac_if_output_terminalid, + { "Terminal ID", "usbaudio.ac_if_output.bTerminalID", + FT_UINT8, BASE_DEC, NULL, 0x0, "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, 0x0, "bAssocTerminal", HFILL }}, + { &hf_ac_if_output_sourceid, + { "Source ID", "usbaudio.ac_if_output.bSourceID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bSourceID", HFILL }}, + { &hf_ac_if_output_clk_sourceid, + { "Connected Clock Entity", "usbaudio.ac_if_output.bCSourceID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bCSourceID", HFILL }}, + { &hf_ac_if_output_controls, + { "Controls", "usbaudio.ac_if_output.bmControls", + FT_UINT16, BASE_HEX, NULL, 0x0, "bmControls", HFILL }}, + { &hf_ac_if_output_controls_copy, + { "Copy Protect Control", "usbaudio.ac_if_output.bmControls.copy", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0003, NULL, HFILL }}, + { &hf_ac_if_output_controls_connector, + { "Connector Control", "usbaudio.ac_if_output.bmControls.connector", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x000C, NULL, HFILL }}, + { &hf_ac_if_output_controls_overload, + { "Overload Control", "usbaudio.ac_if_output.bmControls.overload", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0030, NULL, HFILL }}, + { &hf_ac_if_output_controls_underflow, + { "Underflow Control", "usbaudio.ac_if_output.bmControls.underflow", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x00C0, NULL, HFILL }}, + { &hf_ac_if_output_controls_overflow, + { "Overflow Control", "usbaudio.ac_if_output.bmControls.overflow", FT_UINT16, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0300, NULL, HFILL }}, + { &hf_ac_if_output_controls_rsv, + { "Reserved", "usbaudio.ac_if_output.bmControls.rsv", + FT_UINT16, BASE_HEX, NULL, 0xFC00, "Must be zero", HFILL }}, + { &hf_ac_if_output_terminal, + { "String descriptor index", "usbaudio.ac_if_output.iTerminal", + FT_UINT8, BASE_DEC, NULL, 0x0, "iTerminal", HFILL }}, + { &hf_ac_if_fu_unitid, + { "Unit ID", "usbaudio.ac_if_fu.bUnitID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bUnitID", HFILL }}, + { &hf_ac_if_fu_sourceid, + { "Source ID", "usbaudio.ac_if_fu.bSourceID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bSourceID", HFILL }}, + { &hf_ac_if_fu_controlsize, + { "Control Size", "usbaudio.ac_if_fu.bControlSize", + FT_UINT8, BASE_DEC, NULL, 0x0, "bControlSize", HFILL }}, + { &hf_ac_if_fu_controls, + { "Controls", "usbaudio.ac_if_fu.bmaControls", + FT_BYTES, BASE_NONE, NULL, 0x0, "bmaControls", HFILL }}, + { &hf_ac_if_fu_control, + { "Control", "usbaudio.ac_if_fu.bmaControl", + FT_UINT8, BASE_HEX, NULL, 0x0, "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_controls_v2, + { "Controls", "usbaudio.ac_if_fu.bmaControls_v2", + FT_BYTES, BASE_NONE, NULL, 0x0, "bmaControls", HFILL }}, + { &hf_ac_if_fu_control_v2, + { "Control", "usbaudio.ac_if_fu.bmaControl_v2", + FT_UINT32, BASE_HEX, NULL, 0x0, "bmaControls", HFILL }}, + { &hf_ac_if_fu_controls_v2_d0, + { "Mute", "usbaudio.ac_if_fu.bmaControls_v2.d0", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 0), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d1, + { "Volume", "usbaudio.ac_if_fu.bmaControls_v2.d1", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 2), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d2, + { "Bass", "usbaudio.ac_if_fu.bmaControls_v2.d2", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 4), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d3, + { "Mid", "usbaudio.ac_if_fu.bmaControls_v2.d3", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 6), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d4, + { "Treble", "usbaudio.ac_if_fu.bmaControls_v2.d4", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 8), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d5, + { "Graphic Equalizer", "usbaudio.ac_if_fu.bmaControls_v2.d5", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 10), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d6, + { "Automatic Gain", "usbaudio.ac_if_fu.bmaControls_v2.d6", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 12), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d7, + { "Delay", "usbaudio.ac_if_fu.bmaControl_v2s.d7", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 14), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d8, + { "Bass Boost", "usbaudio.ac_if_fu.bmaControls_v2.d8", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 16), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d9, + { "Loudness", "usbaudio.ac_if_fu.bmaControls_v2.d9", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 18), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d10, + { "Input Gain", "usbaudio.ac_if_fu.bmaControls_v2.d10", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 20), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d11, + { "Input Gain Pad", "usbaudio.ac_if_fu.bmaControls_v2.d11", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 22), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d12, + { "Phase Inverter", "usbaudio.ac_if_fu.bmaControls_v2.d12", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 24), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d13, + { "Underflow", "usbaudio.ac_if_fu.bmaControls_v2.d13", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 26), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_d14, + { "Overflow", "usbaudio.ac_if_fu.bmaControls_v2.d14", FT_UINT32, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, (3u << 28), NULL, HFILL }}, + { &hf_ac_if_fu_controls_v2_rsv, + { "Reserved", "usbaudio.ac_if_fu.bmaControls_v2.rsv", FT_UINT32, + BASE_HEX, NULL, (3u << 30), "Must be zero", HFILL }}, + { &hf_ac_if_fu_ifeature, + { "Feature", "usbaudio.ac_if_fu.iFeature", + FT_UINT8, BASE_DEC, NULL, 0x0, "iFeature", HFILL }}, + { &hf_ac_if_su_unitid, + { "Unit ID", "usbaudio.ac_if_su.bUnitID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bUnitID", HFILL }}, + { &hf_ac_if_su_nrinpins, + { "Input Pins", "usbaudio.ac_if_su.bNrInPins", + FT_UINT8, BASE_DEC, NULL, 0x0, "bNrInPins", HFILL }}, + { &hf_ac_if_su_sourceids, + { "Source IDs", "usbaudio.ac_if_su.baSourceIDs", + FT_BYTES, BASE_NONE, NULL, 0x0, "baSourceIDs", HFILL }}, + { &hf_ac_if_su_sourceid, + { "Source ID", "usbaudio.ac_if_su.baSourceID", + FT_UINT8, BASE_DEC, NULL, 0x0, "baSourceID", HFILL}}, + { &hf_ac_if_su_controls, + { "Controls", "usbaudio.ac_if_su.bmControls", + FT_UINT8, BASE_HEX, NULL, 0x0, "bmControls", HFILL}}, + { &hf_ac_if_su_controls_d0, + { "Selector Control", "usbaudio.ac_if_su.bmControls.d0", + FT_UINT8, BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x03, NULL, HFILL}}, + { &hf_ac_if_su_controls_rsv, + { "Reserved", "usbaudio.ac_if_su.bmControls.rsv", + FT_UINT8, BASE_HEX, NULL, 0xFC, "Must be zero", HFILL}}, + { &hf_ac_if_su_iselector, + { "Selector Index", "usbaudio.ac_if_su.iSelector", + FT_UINT8, BASE_DEC, NULL, 0x0, "iSelector", HFILL }}, + { &hf_ac_if_mu_unitid, + { "Unit ID", "usbaudio.ac_if_mu.bUnitID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bUnitID", HFILL }}, + { &hf_ac_if_mu_nrinpins, + { "Number In Pins", "usbaudio.ac_if_mu.bNrInPins", + FT_UINT8, BASE_DEC, NULL, 0x0, "bNrInPins", HFILL }}, + { &hf_ac_if_mu_sourceid, + { "Source ID", "usbaudio.ac_if_mu.baSourceID", + FT_UINT8, BASE_DEC, NULL, 0x0, "baSourceID", HFILL }}, + { &hf_ac_if_mu_nrchannels, + { "Number Channels", "usbaudio.ac_if_mu.bNrChannels", + FT_UINT8, BASE_DEC, NULL, 0x0, "bNrChannels", HFILL }}, + { &hf_ac_if_mu_channelconfig, + { "Channel Config", "usbaudio.ac_if_mu.wChannelConfig", + FT_UINT16, BASE_HEX, NULL, 0x0, "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, 0x0, "iChannelNames", HFILL }}, + { &hf_ac_if_mu_controls, + { "Controls", "usbaudio.ac_if_mu.bmControls", + FT_UINT8, BASE_HEX, NULL, 0x0, "bmControls", HFILL }}, + { &hf_ac_if_mu_imixer, + { "Mixer", "usbaudio.ac_if_mu.iMixer", + FT_UINT8, BASE_DEC, NULL, 0x0, "iMixer", HFILL }}, + { &hf_ac_if_clksrc_id, + { "Clock Source Entity", "usbaudio.ac_if_clksrc.bClockID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bClockID", HFILL }}, + { &hf_ac_if_clksrc_attr, + { "Attributes", "usbaudio.ac_if_clksrc.bmAttributes", + FT_UINT8, BASE_HEX, NULL, 0x0, "bmAttributes", HFILL }}, + { &hf_ac_if_clksrc_attr_type, + { "Type", "usbaudio.ac_if_clksrc.bmAttributes.type", FT_UINT8, + BASE_HEX, VALS(clock_types_vals), 0x03, NULL, HFILL }}, + { &hf_ac_if_clksrc_attr_d2, + { "Synchronization", "usbaudio.ac_if_clksrc.bmAttributes.d2", FT_UINT8, + BASE_HEX, VALS(clock_sync_vals), 0x04, NULL, HFILL }}, + { &hf_ac_if_clksrc_attr_rsv, + { "Reserved", "usbaudio.ac_if_clksrc.bmAttributes.rsv", + FT_UINT8, BASE_HEX, NULL, 0xF8, "Must be zero", HFILL }}, + { &hf_ac_if_clksrc_controls, + { "Controls", "usbaudio.ac_if_clksrc.bmControls", + FT_UINT8, BASE_HEX, NULL, 0x0, "bmControls", HFILL }}, + { &hf_ac_if_clksrc_controls_freq, + { "Clock Frequency Control", "usbaudio.ac_if_clksrc.bmControls.freq", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x03, NULL, HFILL }}, + { &hf_ac_if_clksrc_controls_validity, + { "Clock Validity Control", "usbaudio.ac_if_clksrc.bmControls.validity", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x0C, NULL, HFILL }}, + { &hf_ac_if_clksrc_controls_rsv, + { "Reserved", "usbaudio.ac_if_clksrc.bmControls.rsv", + FT_UINT8, BASE_HEX, NULL, 0xF0, "Must be zero", HFILL }}, + { &hf_ac_if_clksrc_assocterminal, + { "Terminal", "usbaudio.ac_if_clksrc.bAssocTerminal", + FT_UINT8, BASE_DEC, NULL, 0x0, "bAssocTerminal", HFILL }}, + { &hf_ac_if_clksrc_clocksource, + { "String descriptor index", "usbaudio.ac_if_clksrc.iClockSource", + FT_UINT8, BASE_DEC, NULL, 0x0, "iClockSource", HFILL }}, + { &hf_ac_if_clksel_id, + { "Clock Selector Entity", "usbaudio.ac_if_clksel.bClockID", + FT_UINT8, BASE_DEC, NULL, 0x0, "bClockID", HFILL }}, + { &hf_ac_if_clksel_nrpins, + { "Number of Input Pins", "usbaudio.ac_if_clksel.bNrInPins", + FT_UINT8, BASE_DEC, NULL, 0x0, "bNrInPins", HFILL }}, + { &hf_ac_if_clksel_sourceid, + { "Connected Clock Entity", "usbaudio.ac_if_clksel.baCSourceID", + FT_UINT8, BASE_DEC, NULL, 0x0, "baCSourceID", HFILL }}, + { &hf_ac_if_clksel_controls, + { "Controls", "usbaudio.ac_if_clksel.bmControls", + FT_UINT8, BASE_HEX, NULL, 0x0, "bmControls", HFILL }}, + { &hf_ac_if_clksel_controls_clksel, + { "Clock Selector Control", "usbaudio.ac_if_clksel.bmControls.clksel", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_vals_ext, 0x03, NULL, HFILL }}, + { &hf_ac_if_clksel_controls_rsv, + { "Reserved", "usbaudio.ac_if_clksel.bmControls.rsv", + FT_UINT8, BASE_HEX, NULL, 0xFC, "Must be zero", HFILL }}, + { &hf_ac_if_clksel_clockselector, + { "String descriptor index", "usbaudio.ac_if_clksel.iClockSelector", + FT_UINT8, BASE_DEC, NULL, 0x0, "iClockSelector", HFILL }}, + { &hf_as_if_desc_subtype, + { "Subtype", "usbaudio.as_if_subtype", FT_UINT8, BASE_HEX|BASE_EXT_STRING, + &as_subtype_vals_ext, 0x0, "bDescriptorSubtype", HFILL }}, + { &hf_as_if_gen_term_link, + { "Connected Terminal ID", "usbaudio.as_if_gen.bTerminalLink", + FT_UINT8, BASE_DEC, NULL, 0x0, "bTerminalLink", HFILL }}, + { &hf_as_if_gen_delay, + { "Interface delay in frames", "usbaudio.as_if_gen.bDelay", + FT_UINT8, BASE_DEC, NULL, 0x0, "bDelay", HFILL }}, + { &hf_as_if_gen_wformattag, + { "Format", "usbaudio.as_if_gen.wFormatTag", FT_UINT16, BASE_HEX|BASE_EXT_STRING, + &audio_data_format_tag_vals_ext, 0x0, "wFormatTag", HFILL }}, + { &hf_as_if_gen_controls, + { "Controls", "usbaudio.as_if_gen.bmControls", + FT_UINT8, BASE_HEX, NULL, 0x0, "bmControls", HFILL }}, + { &hf_as_if_gen_controls_active, + { "Active Alternate Setting Control", "usbaudio.as_if_gen.bmControls.active", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_read_only_vals_ext, 0x03, NULL, HFILL }}, + { &hf_as_if_gen_controls_valid, + { "Valid Alternate Settings Control", "usbaudio.as_if_gen.bmControls.valid", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_read_only_vals_ext, 0x0C, NULL, HFILL }}, + { &hf_as_if_gen_controls_rsv, + { "Reserved", "usbaudio.as_if_gen.bmControls.rsv", + FT_UINT8, BASE_HEX, NULL, 0xF0, "Must be zero", HFILL }}, + { &hf_as_if_gen_formattype, + { "Format Type", "usbaudio.as_if_gen.bFormatType", + FT_UINT8, BASE_DEC, NULL, 0x0, "bFormatType", HFILL }}, + { &hf_as_if_gen_formats, + { "Formats", "usbaudio.as_if_gen.bmFormats", + FT_UINT32, BASE_HEX, NULL, 0x0, "bmFormats", HFILL }}, + + { &hf_as_if_gen_formats_i_d0, + { "PCM", "usbaudio.as_if_gen.bmFormats.d0", + FT_BOOLEAN, 32, NULL, (1u << 0), NULL, HFILL }}, + { &hf_as_if_gen_formats_i_d1, + { "PCM8", "usbaudio.as_if_gen.bmFormats.d1", + FT_BOOLEAN, 32, NULL, (1u << 1), NULL, HFILL }}, + { &hf_as_if_gen_formats_i_d2, + { "IEEE Float", "usbaudio.as_if_gen.bmFormats.d2", + FT_BOOLEAN, 32, NULL, (1u << 2), NULL, HFILL }}, + { &hf_as_if_gen_formats_i_d3, + { "ALAW", "usbaudio.as_if_gen.bmFormats.d3", + FT_BOOLEAN, 32, NULL, (1u << 3), NULL, HFILL }}, + { &hf_as_if_gen_formats_i_d4, + { "MULAW", "usbaudio.as_if_gen.bmFormats.d4", + FT_BOOLEAN, 32, NULL, (1u << 4), NULL, HFILL }}, + { &hf_as_if_gen_formats_i_rsv, + { "Reserved", "usbaudio.as_if_gen.bmFormats.rsv", + FT_UINT32, BASE_HEX, NULL, (0x7FFFFFE0u), "Must be zero", HFILL }}, + { &hf_as_if_gen_formats_i_d31, + { "Type I Raw Data", "usbaudio.as_if_gen.bmFormats.d31", + FT_BOOLEAN, 32, NULL, (1u << 31), NULL, HFILL }}, + + { &hf_as_if_gen_formats_ii_d0, + { "MPEG", "usbaudio.as_if_gen.bmFormats.d0", + FT_BOOLEAN, 32, NULL, (1u << 0), NULL, HFILL }}, + { &hf_as_if_gen_formats_ii_d1, + { "AC-3", "usbaudio.as_if_gen.bmFormats.d1", + FT_BOOLEAN, 32, NULL, (1u << 1), NULL, HFILL }}, + { &hf_as_if_gen_formats_ii_d2, + { "WMA", "usbaudio.as_if_gen.bmFormats.d2", + FT_BOOLEAN, 32, NULL, (1u << 2), NULL, HFILL }}, + { &hf_as_if_gen_formats_ii_d3, + { "DTS", "usbaudio.as_if_gen.bmFormats.d3", + FT_BOOLEAN, 32, NULL, (1u << 3), NULL, HFILL }}, + { &hf_as_if_gen_formats_ii_rsv, + { "Reserved", "usbaudio.as_if_gen.bmFormats.rsv", + FT_UINT32, BASE_HEX, NULL, (0x7FFFFFF0u), "Must be zero", HFILL }}, + { &hf_as_if_gen_formats_ii_d31, + { "Type II Raw Data", "usbaudio.as_if_gen.bmFormats.d31", + FT_BOOLEAN, 32, NULL, (1u << 31), NULL, HFILL }}, + + { &hf_as_if_gen_formats_iii_d0, + { "IEC61937 AC-3", "usbaudio.as_if_gen.bmFormats.d0", + FT_BOOLEAN, 32, NULL, (1u << 0), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d1, + { "IEC61937 MPEG-1 Layer1", "usbaudio.as_if_gen.bmFormats.d1", + FT_BOOLEAN, 32, NULL, (1u << 1), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d2, + { "IEC61937 MPEG-1 Layer2/3 or IEC61937 MPEG-2 NOEXT", "usbaudio.as_if_gen.bmFormats.d2", + FT_BOOLEAN, 32, NULL, (1u << 2), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d3, + { "IEC61937 MPEG-2 EXT", "usbaudio.as_if_gen.bmFormats.d3", + FT_BOOLEAN, 32, NULL, (1u << 3), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d4, + { "IEC61937 MPEG-2 AAC ADTS", "usbaudio.as_if_gen.bmFormats.d4", + FT_BOOLEAN, 32, NULL, (1u << 4), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d5, + { "IEC61937 MPEG-2 Layer1 LS", "usbaudio.as_if_gen.bmFormats.d5", + FT_BOOLEAN, 32, NULL, (1u << 5), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d6, + { "IEC61937 MPEG-2 Layer2/3 LS", "usbaudio.as_if_gen.bmFormats.d6", + FT_BOOLEAN, 32, NULL, (1u << 6), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d7, + { "IEC61937 DTS-I", "usbaudio.as_if_gen.bmFormats.d7", + FT_BOOLEAN, 32, NULL, (1u << 7), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d8, + { "IEC61937 DTS-II", "usbaudio.as_if_gen.bmFormats.d8", + FT_BOOLEAN, 32, NULL, (1u << 8), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d9, + { "IEC61937 DTS-III", "usbaudio.as_if_gen.bmFormats.d9", + FT_BOOLEAN, 32, NULL, (1u << 9), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d10, + { "IEC61937 ATRAC", "usbaudio.as_if_gen.bmFormats.d10", + FT_BOOLEAN, 32, NULL, (1u << 10), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d11, + { "IEC61937 ATRAC2/3", "usbaudio.as_if_gen.bmFormats.d11", + FT_BOOLEAN, 32, NULL, (1u << 11), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_d12, + { "Type III WMA", "usbaudio.as_if_gen.bmFormats.d12", + FT_BOOLEAN, 32, NULL, (1u << 12), NULL, HFILL }}, + { &hf_as_if_gen_formats_iii_rsv, + { "Reserved", "usbaudio.as_if_gen.bmFormats.rsv", + FT_UINT32, BASE_HEX, NULL, (0xFFFFE000u), "Must be zero", HFILL }}, + + { &hf_as_if_gen_formats_iv_d0, + { "PCM", "usbaudio.as_if_gen.bmFormats.d0", + FT_BOOLEAN, 32, NULL, (1u << 0), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d1, + { "PCM8", "usbaudio.as_if_gen.bmFormats.d1", + FT_BOOLEAN, 32, NULL, (1u << 1), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d2, + { "IEEE Float", "usbaudio.as_if_gen.bmFormats.d2", + FT_BOOLEAN, 32, NULL, (1u << 2), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d3, + { "ALAW", "usbaudio.as_if_gen.bmFormats.d3", + FT_BOOLEAN, 32, NULL, (1u << 3), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d4, + { "MULAW", "usbaudio.as_if_gen.bmFormats.d4", + FT_BOOLEAN, 32, NULL, (1u << 4), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d5, + { "MPEG", "usbaudio.as_if_gen.bmFormats.d5", + FT_BOOLEAN, 32, NULL, (1u << 5), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d6, + { "AC-3", "usbaudio.as_if_gen.bmFormats.d6", + FT_BOOLEAN, 32, NULL, (1u << 6), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d7, + { "WMA", "usbaudio.as_if_gen.bmFormats.d7", + FT_BOOLEAN, 32, NULL, (1u << 7), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d8, + { "IEC61937 AC-3", "usbaudio.as_if_gen.bmFormats.d8", + FT_BOOLEAN, 32, NULL, (1u << 8), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d9, + { "IEC61937 MPEG-1 Layer1", "usbaudio.as_if_gen.bmFormats.d9", + FT_BOOLEAN, 32, NULL, (1u << 9), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d10, + { "IEC61937 MPEG-1 Layer2/3 or IEC61937 MPEG-2 NOEXT", "usbaudio.as_if_gen.bmFormats.d10", + FT_BOOLEAN, 32, NULL, (1u << 10), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d11, + { "IEC61937 MPEG-2 EXT", "usbaudio.as_if_gen.bmFormats.d11", + FT_BOOLEAN, 32, NULL, (1u << 11), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d12, + { "IEC61937 MPEG-2 AAC ADTS", "usbaudio.as_if_gen.bmFormats.d12", + FT_BOOLEAN, 32, NULL, (1u << 12), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d13, + { "IEC61937 MPEG-2 Layer1 LS", "usbaudio.as_if_gen.bmFormats.d13", + FT_BOOLEAN, 32, NULL, (1u << 13), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d14, + { "IEC61937 MPEG-2 Layer2/3 LS", "usbaudio.as_if_gen.bmFormats.d14", + FT_BOOLEAN, 32, NULL, (1u << 14), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d15, + { "IEC61937 DTS-I", "usbaudio.as_if_gen.bmFormats.d15", + FT_BOOLEAN, 32, NULL, (1u << 15), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d16, + { "IEC61937 DTS-II", "usbaudio.as_if_gen.bmFormats.d16", + FT_BOOLEAN, 32, NULL, (1u << 16), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d17, + { "IEC61937 DTS-III", "usbaudio.as_if_gen.bmFormats.d17", + FT_BOOLEAN, 32, NULL, (1u << 17), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d18, + { "IEC61937 ATRAC", "usbaudio.as_if_gen.bmFormats.d18", + FT_BOOLEAN, 32, NULL, (1u << 18), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d19, + { "IEC61937 ATRAC2/3", "usbaudio.as_if_gen.bmFormats.d19", + FT_BOOLEAN, 32, NULL, (1u << 19), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d20, + { "Type III WMA", "usbaudio.as_if_gen.bmFormats.d20", + FT_BOOLEAN, 32, NULL, (1u << 20), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_d21, + { "IEC60958 PCM", "usbaudio.as_if_gen.bmFormats.d21", + FT_BOOLEAN, 32, NULL, (1u << 21), NULL, HFILL }}, + { &hf_as_if_gen_formats_iv_rsv, + { "Reserved", "usbaudio.as_if_gen.bmFormats.rsv", + FT_UINT32, BASE_HEX, NULL, (0xFFE00000u), "Must be zero", HFILL }}, + + { &hf_as_if_gen_nrchannels, + { "Number of channels", "usbaudio.as_if_gen.bNrChannels", + FT_UINT8, BASE_DEC, NULL, 0x00, "bNrChannels", HFILL }}, + { &hf_as_if_gen_bmchannelconfig, + { "Channel Config", "usbaudio.as_if_gen.bmChannelConfig", + FT_UINT32, BASE_HEX, NULL, 0x0, "bmChannelConfig", HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d0, + { "Front Left", "usbaudio.as_if_gen.bmChannelConfig.d0", + FT_BOOLEAN, 32, NULL, (1u << 0), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d1, + { "Front Right", "usbaudio.as_if_gen.bmChannelConfig.d1", + FT_BOOLEAN, 32, NULL, (1u << 1), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d2, + { "Front Center", "usbaudio.as_if_gen.bmChannelConfig.d2", + FT_BOOLEAN, 32, NULL, (1u << 2), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d3, + { "Low Frequency Effects", "usbaudio.as_if_gen.bmChannelConfig.d3", + FT_BOOLEAN, 32, NULL, (1u << 3), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d4, + { "Back Left", "usbaudio.as_if_gen.bmChannelConfig.d4", + FT_BOOLEAN, 32, NULL, (1u << 4), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d5, + { "Back Right", "usbaudio.as_if_gen.bmChannelConfig.d5", + FT_BOOLEAN, 32, NULL, (1u << 5), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d6, + { "Front Left of Center", "usbaudio.as_if_gen.bmChannelConfig.d6", + FT_BOOLEAN, 32, NULL, (1u << 6), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d7, + { "Front Right of Center", "usbaudio.as_if_gen.bmChannelConfig.d7", + FT_BOOLEAN, 32, NULL, (1u << 7), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d8, + { "Back Center", "usbaudio.as_if_gen.bmChannelConfig.d8", + FT_BOOLEAN, 32, NULL, (1u << 8), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d9, + { "Side Left", "usbaudio.as_if_gen.bmChannelConfig.d9", + FT_BOOLEAN, 32, NULL, (1u << 9), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d10, + { "Side Right", "usbaudio.as_if_gen.bmChannelConfig.d10", + FT_BOOLEAN, 32, NULL, (1u << 10), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d11, + { "Top Center", "usbaudio.as_if_gen.bmChannelConfig.d11", + FT_BOOLEAN, 32, NULL, (1u << 11), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d12, + { "Top Front Left", "usbaudio.as_if_gen.bmChannelConfig.d12", + FT_BOOLEAN, 32, NULL, (1u << 12), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d13, + { "Top Front Center", "usbaudio.as_if_gen.bmChannelConfig.d13", + FT_BOOLEAN, 32, NULL, (1u << 13), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d14, + { "Top Front Right", "usbaudio.as_if_gen.bmChannelConfig.d14", + FT_BOOLEAN, 32, NULL, (1u << 14), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d15, + { "Top Back Left", "usbaudio.as_if_gen.bmChannelConfig.d15", + FT_BOOLEAN, 32, NULL, (1u << 15), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d16, + { "Top Back Center", "usbaudio.as_if_gen.bmChannelConfig.d16", + FT_BOOLEAN, 32, NULL, (1u << 16), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d17, + { "Top Back Right", "usbaudio.as_if_gen.bmChannelConfig.d17", + FT_BOOLEAN, 32, NULL, (1u << 17), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d18, + { "Top Front Left of Center", "usbaudio.as_if_gen.bmChannelConfig.d18", + FT_BOOLEAN, 32, NULL, (1u << 18), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d19, + { "Top Front Right of Center", "usbaudio.as_if_gen.bmChannelConfig.d19", + FT_BOOLEAN, 32, NULL, (1u << 19), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d20, + { "Left Low Frequency Effects", "usbaudio.as_if_gen.bmChannelConfig.d20", + FT_BOOLEAN, 32, NULL, (1u << 20), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d21, + { "Right Low Frequency Effects", "usbaudio.as_if_gen.bmChannelConfig.d21", + FT_BOOLEAN, 32, NULL, (1u << 21), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d22, + { "Top Side Left", "usbaudio.as_if_gen.bmChannelConfig.d22", + FT_BOOLEAN, 32, NULL, (1u << 22), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d23, + { "Top Side Right", "usbaudio.as_if_gen.bmChannelConfig.d23", + FT_BOOLEAN, 32, NULL, (1u << 23), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d24, + { "Bottom Center", "usbaudio.as_if_gen.bmChannelConfig.d24", + FT_BOOLEAN, 32, NULL, (1u << 24), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d25, + { "Back Left of Center", "usbaudio.as_if_gen.bmChannelConfig.d25", + FT_BOOLEAN, 32, NULL, (1u << 25), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d26, + { "Back Right of Center", "usbaudio.as_if_gen.bmChannelConfig.d26", + FT_BOOLEAN, 32, NULL, (1u << 26), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_rsv, + { "Reserved", "usbaudio.as_if_gen.bmChannelConfig.rsv", + FT_BOOLEAN, 32, NULL, (0xFu << 27), NULL, HFILL }}, + { &hf_as_if_gen_bmchannelconfig_d31, + { "Raw Data", "usbaudio.as_if_gen.bmChannelConfig.d31", + FT_BOOLEAN, 32, NULL, (1u << 31), NULL, HFILL }}, + { &hf_as_if_gen_channelnames, + { "String descriptor index", "usbaudio.as_if_gen.iChannelNames", + FT_UINT8, BASE_DEC, NULL, 0x00, "iChannelNames", 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_subslotsize, + { "Subslot Size", "usbaudio.as_if_ft.bSubslotSize", + FT_UINT8, BASE_DEC, NULL, 0x00, "bSubslotSize", 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, VALS(as_ep_subtype_vals), 0x00, "bDescriptorSubtype", HFILL }}, + { &hf_as_ep_gen_bmattributes, + { "Attributes", "usbaudio.as_ep_gen.bmAttributes", FT_UINT8, + BASE_HEX, NULL, 0x00, "bmAttributes", HFILL }}, + { &hf_as_ep_gen_bmattributes_d0, + { "Sampling Frequency Control", "usbaudio.as_ep_gen.bmAttributes.d0", FT_BOOLEAN, + 8, NULL, (1u << 0), NULL, HFILL }}, + { &hf_as_ep_gen_bmattributes_d1, + { "Pitch Control", "usbaudio.as_ep_gen.bmAttributes.d1", FT_BOOLEAN, + 8, NULL, (1u << 1), NULL, HFILL }}, + { &hf_as_ep_gen_bmattributes_rsv, + { "Reserved", "usbaudio.as_ep_gen.bmAttributes.rsv", FT_UINT8, + BASE_HEX, NULL, 0x7C, NULL, HFILL }}, + { &hf_as_ep_gen_bmattributes_d7, + { "MaxPacketsOnly", "usbaudio.as_ep_gen.bmAttributes.d7", FT_BOOLEAN, + 8, NULL, (1u << 7), NULL, HFILL }}, + { &hf_as_ep_gen_controls, + { "Controls", "usbaudio.as_ep_gen.bmControls", + FT_UINT8, BASE_HEX, NULL, 0x00, "bmControls", HFILL }}, + { &hf_as_ep_gen_controls_pitch, + { "Pitch Control", "usbaudio.as_ep_gen.bmControls.pitch", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_read_only_vals_ext, 0x03, NULL, HFILL }}, + { &hf_as_ep_gen_controls_data_overrun, + { "Data Overrun Control", "usbaudio.as_ep_gen.bmControls.overrun", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_read_only_vals_ext, 0x0C, NULL, HFILL }}, + { &hf_as_ep_gen_controls_data_underrun, + { "Valid Alternate Settings Control", "usbaudio.as_ep_gen.bmControls.underrun", FT_UINT8, + BASE_HEX|BASE_EXT_STRING, &controls_capabilities_read_only_vals_ext, 0x30, NULL, HFILL }}, + { &hf_as_ep_gen_controls_rsv, + { "Reserved", "usbaudio.as_ep_gen.bmControls.bmControls.rsv", + FT_UINT8, BASE_HEX, NULL, 0xC0, "Must be zero", HFILL }}, + { &hf_as_ep_gen_lockdelayunits, + { "Lock Delay Units", "usbaudio.as_ep_gen.bLockDelayUnits", + FT_UINT8, BASE_DEC, VALS(lock_delay_unit_vals), 0x00, NULL, HFILL }}, + { &hf_as_ep_gen_lockdelay, + { "Lock Delay", "usbaudio.as_ep_gen.wLockDelay", + FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + + { &hf_ms_if_desc_subtype, + { "Subtype", "usbaudio.ms_if_subtype", FT_UINT8, BASE_HEX|BASE_EXT_STRING, + &ms_if_subtype_vals_ext, 0x0, "bDescriptorSubtype", HFILL }}, + { &hf_ms_if_hdr_ver, + { "Version", "usbaudio.ms_if_hdr.bcdADC", + FT_DOUBLE, BASE_NONE, NULL, 0, "bcdADC", HFILL }}, + { &hf_ms_if_hdr_total_len, + { "Total length", "usbaudio.ms_if_hdr.wTotalLength", + FT_UINT16, BASE_DEC, NULL, 0x00, "wTotalLength", HFILL }}, + { &hf_ms_if_midi_in_bjacktype, + { "Jack Type", "usbaudio.ms_if_midi_in.bJackType", + FT_UINT8, BASE_HEX, VALS(ms_midi_jack_type_vals), 0x00, "bJackType", HFILL }}, + { &hf_ms_if_midi_in_bjackid, + { "Jack ID", "usbaudio.ms_if_midi_in.bJackID", + FT_UINT8, BASE_DEC, NULL, 0x00, "bJackID", HFILL }}, + { &hf_ms_if_midi_in_ijack, + { "String descriptor index", "usbaudio.ms_if_midi_in.iJack", + FT_UINT8, BASE_DEC, NULL, 0x00, "iJack", HFILL }}, + { &hf_ms_if_midi_out_bjacktype, + { "Jack Type", "usbaudio.ms_if_midi_out.bJackType", + FT_UINT8, BASE_HEX, VALS(ms_midi_jack_type_vals), 0x00, "bJackType", HFILL }}, + { &hf_ms_if_midi_out_bjackid, + { "Jack ID", "usbaudio.ms_if_midi_out.bJackID", + FT_UINT8, BASE_DEC, NULL, 0x00, "bJackID", HFILL }}, + { &hf_ms_if_midi_out_bnrinputpins, + { "Number of Input Pins", "usbaudio.ms_if_midi_out.bNrInputPins", + FT_UINT8, BASE_DEC, NULL, 0x00, "bNrInputPins", HFILL }}, + { &hf_ms_if_midi_out_basourceid, + { "Connected MIDI Entity", "usbaudio.ms_if_midi_out.baSourceID", + FT_UINT8, BASE_DEC, NULL, 0x00, "baSourceID", HFILL }}, + { &hf_ms_if_midi_out_basourcepin, + { "Entity Output Pin", "usbaudio.ms_if_midi_out.BaSourcePin", + FT_UINT8, BASE_DEC, NULL, 0x00, "BaSourcePin", HFILL }}, + { &hf_ms_if_midi_out_ijack, + { "String descriptor index", "usbaudio.ms_if_midi_out.iJack", + FT_UINT8, BASE_DEC, NULL, 0x00, "iJack", HFILL }}, + + { &hf_ms_ep_desc_subtype, + { "Subtype", "usbaudio.ms_ep_subtype", FT_UINT8, + BASE_HEX, VALS(ms_ep_subtype_vals), 0x00, "bDescriptorSubtype", HFILL }}, + { &hf_ms_ep_gen_numjacks, + { "Number of Embedded MIDI Jacks", "usbaudio.ms_ep_gen.bNumEmbMIDIJack", FT_UINT8, + BASE_DEC, NULL, 0x00, "bNumEmbMIDIJack", HFILL }}, + { &hf_ms_ep_gen_baassocjackid, + { "Associated Embedded Jack ID", "usbaudio.ms_ep_gen.baAssocJackID", FT_UINT8, + BASE_DEC, NULL, 0x00, "baAssocJackID", 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_hdr_controls, + &ett_ac_if_fu_controls, + &ett_ac_if_fu_controls0, + &ett_ac_if_fu_controls1, + &ett_ac_if_fu_controls_v2, + &ett_ac_if_fu_control_v2, + &ett_ac_if_su_sourceids, + &ett_ac_if_su_controls, + &ett_ac_if_input_wchannelconfig, + &ett_ac_if_input_bmchannelconfig, + &ett_ac_if_input_controls, + &ett_ac_if_output_controls, + &ett_ac_if_mu_channelconfig, + &ett_ac_if_clksrc_attr, + &ett_ac_if_clksrc_controls, + &ett_ac_if_clksel_controls, + &ett_as_if_gen_controls, + &ett_as_if_gen_formats, + &ett_as_if_gen_bmchannelconfig, + &ett_as_ep_gen_attributes, + &ett_as_ep_gen_controls + }; + + static ei_register_info ei[] = { + { &ei_usb_audio_undecoded, { "usbaudio.undecoded", PI_UNDECODED, PI_WARN, "Not dissected yet (report to wireshark.org)", EXPFILL }}, + { &ei_usb_audio_invalid_feature_unit_length, { "usbaudio.ac_if_fu.invalid_length", PI_MALFORMED, PI_ERROR, "Descriptor size is not 7+(ch+1)*n where n=bControlSize", EXPFILL }}, + { &ei_usb_audio_invalid_type_3_ft_nrchannels, { "usbaudio.as_if_ft.bNrChannels.invalid_value", PI_MALFORMED, PI_ERROR, "bNrChannels must be 2 for Type III Format Type descriptors", EXPFILL }}, + { &ei_usb_audio_invalid_type_3_ft_subframesize, { "usbaudio.as_if_ft.subframesize.invalid_value", PI_MALFORMED, PI_ERROR, "bSubFrameSize must be 2 for Type III Format Type descriptors", EXPFILL }}, + { &ei_usb_audio_invalid_type_3_ft_bitresolution, { "usbaudio.hf_as_if_ft_bitresolution.invalid_value", PI_MALFORMED, PI_ERROR, "bBitResolution must be 16 for Type III Format Type descriptors", 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)); + reassembly_table_register(&midi_data_reassembly_table, + &addresses_reassembly_table_functions); + + usb_audio_bulk_handle = register_dissector("usbaudio", dissect_usb_audio_bulk, proto_usb_audio); + usb_audio_descr_handle = register_dissector("usbaudio.bulk", dissect_usb_audio_descriptor, proto_usb_audio); +} + +void +proto_reg_handoff_usb_audio(void) +{ + dissector_add_uint("usb.descriptor", IF_CLASS_AUDIO, usb_audio_descr_handle); + + 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: + */ |