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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * USB descriptor definitions
+ *
+ * Copyright (C) 2017-2018 Michael Drake <michael.drake@codethink.co.uk>
+ */
+
+#include "config.h"
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "desc-defs.h"
+
+/** Macro for computing number of elements in array. */
+#define ARRAY_LEN(a) ((sizeof(a)) / (sizeof(a[0])))
+
+/**
+ * Undefined descriptor
+ *
+ * Ensures remaining data is dumped as garbage at end of descriptor.
+ */
+const struct desc desc_undefined[] = {
+ { .field = NULL }
+};
+
+/** USB Audio Device Class 1 Channel Names. (Note: Order matters.) */
+static const char * const uac1_channel_names[] = {
+ "Left Front (L)", "Right Front (R)", "Center Front (C)",
+ "Low Frequency Enhancement (LFE)", "Left Surround (LS)",
+ "Right Surround (RS)", "Left of Center (LC)", "Right of Center (RC)",
+ "Surround (S)", "Side Left (SL)", "Side Right (SR)", "Top (T)"
+};
+
+/** USB Audio Device Class 2 Channel Names. (Note: Order matters.) */
+static const char * const uac2_channel_names[] = {
+ "Front Left (FL)", "Front Right (FR)", "Front Center (FC)",
+ "Low Frequency Effects (LFE)", "Back Left (BL)", "Back Right (BR)",
+ "Front Left of Center (FLC)", "Front Right of Center (FRC)",
+ "Back Center (BC)", "Side Left (SL)", "Side Right (SR)",
+ "Top Center (TC)", "Top Front Left (TFL)", "Top Front Center (TFC)",
+ "Top Front Right (TFR)", "Top Back Left (TBL)", "Top Back Center (TBC)",
+ "Top Back Right (TBR)", "Top Front Left of Center (TFLC)",
+ "Top Front Right of Center (TFRC)", "Left Low Frequency Effects (LLFE)",
+ "Right Low Frequency Effects (RLFE)", "Top Side Left (TSL)",
+ "Top Side Right (TSR)", "Bottom Center (BC)",
+ "Back Left of Center (BLC)", "Back Right of Center (BRC)"
+};
+
+/** Audio Control Interface Header bmControls; Human readable bit meanings. */
+static const char * const uac2_interface_header_bmcontrols[] = {
+ [0] = "Latency control",
+ [1] = NULL
+};
+
+/** UAC1: 4.3.2 Class-Specific AC Interface Descriptor; Table 4-2. */
+static const struct desc desc_audio_1_ac_header[] = {
+ { .field = "bcdADC", .size = 2, .type = DESC_BCD },
+ { .field = "wTotalLength", .size = 2, .type = DESC_CONSTANT },
+ { .field = "bInCollection", .size = 1, .type = DESC_CONSTANT },
+ { .field = "baInterfaceNr", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true } },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2 Class-Specific AC Interface Descriptor; Table 4-5. */
+static const struct desc desc_audio_2_ac_header[] = {
+ { .field = "bcdADC", .size = 2, .type = DESC_BCD },
+ { .field = "bCategory", .size = 1, .type = DESC_CONSTANT },
+ { .field = "wTotalLength", .size = 2, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_interface_header_bmcontrols },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2 Class-Specific AC Interface Descriptor; Table 4-15. */
+static const struct desc desc_audio_3_ac_header[] = {
+ { .field = "bCategory", .size = 1, .type = DESC_CONSTANT },
+ { .field = "wTotalLength", .size = 2, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_interface_header_bmcontrols },
+ { .field = NULL }
+};
+
+/** AudioControl Header descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_header[3] = {
+ desc_audio_1_ac_header,
+ desc_audio_2_ac_header,
+ desc_audio_3_ac_header,
+};
+
+/** UAC2: 4.7.2.10 Effect Unit Descriptor; Table 4-15. */
+static const struct desc desc_audio_2_ac_effect_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wEffectType", .size = 2, .type = DESC_CONSTANT },
+ { .field = "bSourceID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bmaControls", .size = 4, .type = DESC_BITMAP,
+ .array = { .array = true } },
+ { .field = "iEffects", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.9 Effect Unit Descriptor; Table 4-33. */
+static const struct desc desc_audio_3_ac_effect_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wEffectType", .size = 2, .type = DESC_CONSTANT },
+ { .field = "bSourceID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bmaControls", .size = 4, .type = DESC_BITMAP,
+ .array = { .array = true } },
+ { .field = "wEffectsDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Effect Unit descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_effect_unit[3] = {
+ NULL, /* UAC1 not supported */
+ desc_audio_2_ac_effect_unit,
+ desc_audio_3_ac_effect_unit,
+};
+
+/** UAC2 Input Terminal bmControls; Human readable bit meanings. */
+static const char * const uac2_input_term_bmcontrols[] = {
+ [0] = "Copy Protect",
+ [1] = "Connector",
+ [2] = "Overload",
+ [3] = "Cluster",
+ [4] = "Underflow",
+ [5] = "Overflow",
+ [6] = NULL
+};
+
+/** UAC3 Input Terminal bmControls; Human readable bit meanings. */
+static const char * const uac3_input_term_bmcontrols[] = {
+ [0] = "Insertion",
+ [1] = "Overload",
+ [2] = "Underflow",
+ [3] = "Overflow",
+ [4] = "Underflow",
+ [5] = NULL
+};
+
+/** UAC1: 4.3.2.1 Input Terminal Descriptor; Table 4-3. */
+static const struct desc desc_audio_1_ac_input_terminal[] = {
+ { .field = "bTerminalID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wTerminalType", .size = 2, .type = DESC_TERMINAL_STR },
+ { .field = "bAssocTerminal", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "wChannelConfig", .size = 2, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac1_channel_names, .count = 12 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "iTerminal", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.4 Input Terminal Descriptor; Table 4-9. */
+static const struct desc desc_audio_2_ac_input_terminal[] = {
+ { .field = "bTerminalID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wTerminalType", .size = 2, .type = DESC_TERMINAL_STR },
+ { .field = "bAssocTerminal", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bCSourceID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmChannelConfig", .size = 4, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac2_channel_names, .count = 26 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "bmControls", .size = 2, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_input_term_bmcontrols },
+ { .field = "iTerminal", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.1 Input Terminal Descriptor; Table 4-16. */
+static const struct desc desc_audio_3_ac_input_terminal[] = {
+ { .field = "bTerminalID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wTerminalType", .size = 2, .type = DESC_TERMINAL_STR },
+ { .field = "bAssocTerminal", .size = 1, .type = DESC_NUMBER },
+ { .field = "bCSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_input_term_bmcontrols },
+ { .field = "wClusterDescrID", .size = 2, .type = DESC_NUMBER },
+ { .field = "wExTerminalDescrID", .size = 2, .type = DESC_NUMBER },
+ { .field = "wConnectorsDescrID", .size = 2, .type = DESC_NUMBER },
+ { .field = "wTerminalDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Input Terminal descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_input_terminal[3] = {
+ desc_audio_1_ac_input_terminal,
+ desc_audio_2_ac_input_terminal,
+ desc_audio_3_ac_input_terminal,
+};
+
+/** UAC2 Output Terminal bmControls; Human readable bit meanings. */
+static const char * const uac2_output_term_bmcontrols[] = {
+ [0] = "Copy Protect",
+ [1] = "Connector",
+ [2] = "Overload",
+ [3] = "Underflow",
+ [4] = "Overflow",
+ [5] = NULL
+};
+
+/** UAC3 Output Terminal bmControls; Human readable bit meanings. */
+static const char * const uac3_output_term_bmcontrols[] = {
+ [0] = "Insertion",
+ [1] = "Overload",
+ [2] = "Underflow",
+ [3] = "Overflow",
+ [4] = NULL
+};
+
+/** UAC1: 4.3.2.2 Output Terminal Descriptor; Table 4-4. */
+static const struct desc desc_audio_1_ac_output_terminal[] = {
+ { .field = "bTerminalID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wTerminalType", .size = 2, .type = DESC_TERMINAL_STR },
+ { .field = "bAssocTerminal", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "iTerminal", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.5 Output Terminal Descriptor; Table 4-10. */
+static const struct desc desc_audio_2_ac_output_terminal[] = {
+ { .field = "bTerminalID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wTerminalType", .size = 2, .type = DESC_TERMINAL_STR },
+ { .field = "bAssocTerminal", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bCSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 2, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_output_term_bmcontrols },
+ { .field = "iTerminal", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.2 Output Terminal Descriptor; Table 4-17. */
+static const struct desc desc_audio_3_ac_output_terminal[] = {
+ { .field = "bTerminalID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wTerminalType", .size = 2, .type = DESC_TERMINAL_STR },
+ { .field = "bAssocTerminal", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bCSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_output_term_bmcontrols },
+ { .field = "wExTerminalDescrID", .size = 2, .type = DESC_NUMBER },
+ { .field = "wConnectorsDescrID", .size = 2, .type = DESC_NUMBER },
+ { .field = "wTerminalDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Output Terminal descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_output_terminal[3] = {
+ desc_audio_1_ac_output_terminal,
+ desc_audio_2_ac_output_terminal,
+ desc_audio_3_ac_output_terminal,
+};
+
+/** UAC3: 4.5.2.3.1 Extended Terminal Header Descriptor; Table 4-18. */
+static const struct desc desc_audio_3_ac_extended_terminal_header[] = {
+ { .field = "wDescriptorID", .size = 2, .type = DESC_NUMBER },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = NULL }
+};
+
+/** Extended Terminal descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_extended_terminal[3] = {
+ NULL, /* UAC1 not supported */
+ NULL, /* UAC2 not supported */
+ desc_audio_3_ac_extended_terminal_header,
+};
+
+/** UAC3: 4.5.2.15 Power Domain Descriptor; Table 4-46. */
+static const struct desc desc_audio_3_ac_power_domain[] = {
+ { .field = "bPowerDomainID", .size = 1, .type = DESC_NUMBER },
+ { .field = "waRecoveryTime(1)", .size = 2, .type = DESC_NUMBER },
+ { .field = "waRecoveryTime(2)", .size = 2, .type = DESC_NUMBER },
+ { .field = "bNrEntities", .size = 1, .type = DESC_NUMBER },
+ { .field = "baEntityID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrEntities" } },
+ { .field = "wPDomainDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Power Domain descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_power_domain[3] = {
+ NULL, /* UAC1 not supported */
+ NULL, /* UAC2 not supported */
+ desc_audio_3_ac_power_domain,
+};
+
+/** UAC2 Mixer Unit bmControls; Human readable bit meanings. */
+static const char * const uac2_mixer_unit_bmcontrols[] = {
+ [0] = "Cluster",
+ [1] = "Underflow",
+ [2] = "Overflow",
+ [3] = NULL
+};
+
+/** UAC3 Mixer Unit bmControls; Human readable bit meanings. */
+static const char * const uac3_mixer_unit_bmcontrols[] = {
+ [0] = "Underflow",
+ [1] = "Overflow",
+ [2] = NULL
+};
+
+/** UAC1: 4.3.2.3 Mixer Unit Descriptor; Table 4-5. */
+static const struct desc desc_audio_1_ac_mixer_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "wChannelConfig", .size = 2, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac1_channel_names, .count = 12 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "bmControls", .size = 1, .type = DESC_BITMAP,
+ .array = { .array = true, .bits = true,
+ .length_field1 = "bNrInPins",
+ .length_field2 = "bNrChannels" } },
+ { .field = "iMixer", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.6 Mixer Unit Descriptor; Table 4-11. */
+static const struct desc desc_audio_2_ac_mixer_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmChannelConfig",.size = 4, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac2_channel_names, .count = 26 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "bmMixerControls",.size = 1, .type = DESC_BITMAP,
+ .array = { .array = true, .bits = true,
+ .length_field1 = "bNrInPins",
+ .length_field2 = "bNrChannels" } },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_mixer_unit_bmcontrols },
+ { .field = "iMixer", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.5 Mixer Unit Descriptor; Table 4-29. */
+static const struct desc desc_audio_3_ac_mixer_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "wClusterDescrID",.size = 2, .type = DESC_NUMBER },
+ { .field = "bmMixerControls",.size = 1, .type = DESC_BITMAP,
+ .array = { .array = true } },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_mixer_unit_bmcontrols },
+ { .field = "wMixerDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Mixer Unit descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_mixer_unit[3] = {
+ desc_audio_1_ac_mixer_unit,
+ desc_audio_2_ac_mixer_unit,
+ desc_audio_3_ac_mixer_unit,
+};
+
+/** Selector Unit bmControls; Human readable bit meanings. */
+static const char * const uac2_selector_unit_bmcontrols[] = {
+ [0] = "Selector",
+ [1] = NULL
+};
+
+/** UAC1: 4.3.2.4 Selector Unit Descriptor; Table 4-6. */
+static const struct desc desc_audio_1_ac_selector_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "iSelector", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.7 Selector Unit Descriptor; Table 4-12. */
+static const struct desc desc_audio_2_ac_selector_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_selector_unit_bmcontrols },
+ { .field = "iSelector", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.6 Selector Unit Descriptor; Table 4-30. */
+static const struct desc desc_audio_3_ac_selector_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_selector_unit_bmcontrols },
+ { .field = "wSelectorDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Selector Unit descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_selector_unit[3] = {
+ desc_audio_1_ac_selector_unit,
+ desc_audio_2_ac_selector_unit,
+ desc_audio_3_ac_selector_unit,
+};
+
+/** UAC1: Table A-7: Processing Unit Process Types */
+static const char * const uac1_proc_unit_types[] = {
+ [0] = "Undefined",
+ [1] = "Up/Down-mix",
+ [2] = "Dolby Prologic",
+ [3] = "3D Stereo Extender",
+ [4] = "Reverberation",
+ [5] = "Chorus",
+ [6] = "Dyn Range Comp",
+ [7] = NULL
+};
+
+/** UAC1: Up/Down-mix and Dolby Prologic proc unit descriptor extensions Table 4-9, Table 4-10. */
+static const struct desc desc_audio_1_ac_proc_unit_extended[] = {
+ { .field = "bNrModes", .size = 1, .type = DESC_NUMBER },
+ { .field = "waModes", .size = 2, .type = DESC_BITMAP,
+ .array = { .array = true, .length_field1 = "bNrModes" } },
+ { .field = NULL }
+};
+
+/** UAC1: Table A-7: Processing Unit Process Types */
+static const struct desc_ext desc_audio_1_ac_proc_unit_specific[] = {
+ { .type = 1, .desc = desc_audio_1_ac_proc_unit_extended },
+ { .type = 2, .desc = desc_audio_1_ac_proc_unit_extended },
+ { .desc = NULL }
+};
+
+/** UAC1: 4.3.2.6 Processing Unit Descriptor; Table 4-8. */
+static const struct desc desc_audio_1_ac_processing_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wProcessType", .size = 2, .type = DESC_NUMBER_STRINGS,
+ .number_strings = uac1_proc_unit_types },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "wChannelConfig", .size = 2, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac1_channel_names, .count = 12 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "bControlSize", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 1, .type = DESC_BITMAP,
+ .array = { .array = true, .length_field1 = "bControlSize" } },
+ { .field = "iProcessing", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "Process-specific", .size = 1, .type = DESC_EXTENSION,
+ .extension = { .type_field = "wProcessType", .d = desc_audio_1_ac_proc_unit_specific } },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.11.1 Up/Down-mix Processing Unit Descriptor; Table 4-21. */
+static const struct desc desc_audio_2_ac_proc_unit_up_down_mix[] = {
+ { .field = "bNrModes", .size = 1, .type = DESC_NUMBER },
+ { .field = "daModes", .size = 4, .type = DESC_BITMAP,
+ .array = { .array = true, .length_field1 = "bNrModes" } },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.11.2 Dolby prologic Processing Unit Descriptor; Table 4-22. */
+static const struct desc desc_audio_2_ac_proc_unit_dolby_prologic[] = {
+ { .field = "bNrModes", .size = 1, .type = DESC_NUMBER },
+ { .field = "daModes", .size = 4, .type = DESC_BITMAP,
+ .array = { .array = true, .length_field1 = "bNrModes" } },
+ { .field = NULL }
+};
+
+/** UAC2: Table A-12: Processing Unit Process Types */
+static const struct desc_ext desc_audio_2_ac_proc_unit_specific[] = {
+ { .type = 1, .desc = desc_audio_2_ac_proc_unit_up_down_mix },
+ { .type = 2, .desc = desc_audio_2_ac_proc_unit_dolby_prologic },
+ { .desc = NULL }
+};
+
+/** UAC2: Table A-12: Processing Unit Process Types */
+static const char * const uac2_proc_unit_types[] = {
+ [0] = "Undefined",
+ [1] = "Up/Down-mix",
+ [2] = "Dolby Prologic",
+ [3] = "Stereo Extender",
+ [4] = NULL
+};
+
+/** UAC2: 4.7.2.11 Processing Unit Descriptor; Table 4-20. */
+static const struct desc desc_audio_2_ac_processing_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wProcessType", .size = 2, .type = DESC_NUMBER_STRINGS,
+ .number_strings = uac2_proc_unit_types },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmChannelConfig", .size = 4, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac2_channel_names, .count = 26 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "bmControls", .size = 2, .type = DESC_BITMAP },
+ { .field = "iProcessing", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "Process-specific", .size = 1, .type = DESC_EXTENSION,
+ .extension = { .type_field = "wProcessType", .d = desc_audio_2_ac_proc_unit_specific } },
+ { .field = NULL }
+};
+
+/** Processor unit Up/Down-mix bmControls; Human readable bit meanings. */
+static const char * const uac3_proc_unit_up_down_mix_bmcontrols[] = {
+ [0] = "Mode Select",
+ [1] = "Underflow",
+ [2] = "Overflow",
+ [3] = NULL
+};
+
+/** UAC3: 4.5.2.10.1 Up/Down-mix Processing Unit Descriptor; Table 4-39. */
+static const struct desc desc_audio_3_ac_proc_unit_up_down_mix[] = {
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_proc_unit_up_down_mix_bmcontrols },
+ { .field = "bNrModes", .size = 1, .type = DESC_NUMBER },
+ { .field = "waClusterDescrID", .size = 2, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrModes" } },
+ { .field = NULL }
+};
+
+/** Processor unit stereo extender bmControls; Human readable bit meanings. */
+static const char * const uac3_proc_unit_stereo_extender_bmcontrols[] = {
+ [0] = "Width",
+ [1] = "Underflow",
+ [2] = "Overflow",
+ [3] = NULL
+};
+
+/** UAC3: 4.5.2.10.2 Stereo Extender Processing Unit Descriptor; Table 4-40. */
+static const struct desc desc_audio_3_ac_proc_unit_stereo_extender[] = {
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_proc_unit_stereo_extender_bmcontrols },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.10.3 Multi Func Proc Unit Descriptor; Algorithms; Table 4-41. */
+static const char *uac3_proc_unit_multi_func_algorithms[] = {
+ [0] = "Algorithm Undefined.",
+ [1] = "Beam Forming.",
+ [2] = "Acoustic Echo Cancellation.",
+ [3] = "Active Noise Cancellation.",
+ [4] = "Blind Source Separation.",
+ [5] = "Noise Suppression/Reduction.",
+ [6] = NULL
+};
+
+/** Processor unit Multi Func bmControls; Human readable bit meanings. */
+static const char * const uac3_proc_unit_multi_func_bmcontrols[] = {
+ [0] = "Underflow",
+ [1] = "Overflow",
+ [2] = NULL
+};
+
+/** UAC3: 4.5.2.10.3 Multi Function Processing Unit Descriptor; Table 4-41. */
+static const struct desc desc_audio_3_ac_proc_unit_multi_function[] = {
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_proc_unit_multi_func_bmcontrols },
+ { .field = "wClusterDescrID", .size = 2, .type = DESC_NUMBER, },
+ { .field = "bmAlgorithms", .size = 4, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = {
+ .strings = uac3_proc_unit_multi_func_algorithms,
+ .count = 6
+ } },
+ { .field = NULL }
+};
+
+/** UAC3: Table A-20: Processing Unit Process Types */
+static const char * const uac3_proc_unit_types[] = {
+ [0] = "Undefined",
+ [1] = "Up/Down-mix",
+ [2] = "Stereo Extender",
+ [3] = "Multi-Function",
+ [4] = NULL
+};
+
+/** UAC3: Table A-20: Processing Unit Process Types */
+static const struct desc_ext desc_audio_3_ac_proc_unit_specific[] = {
+ { .type = 1, .desc = desc_audio_3_ac_proc_unit_up_down_mix },
+ { .type = 2, .desc = desc_audio_3_ac_proc_unit_stereo_extender },
+ { .type = 3, .desc = desc_audio_3_ac_proc_unit_multi_function },
+ { .desc = NULL }
+};
+
+/** UAC3: 4.5.2.10 Processing Unit Descriptor; Table 4-38. */
+static const struct desc desc_audio_3_ac_processing_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wProcessType", .size = 2, .type = DESC_NUMBER_STRINGS,
+ .number_strings = uac3_proc_unit_types },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "wProcessingDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = "Process-specific", .size = 1, .type = DESC_EXTENSION,
+ .extension = { .type_field = "wProcessType", .d = desc_audio_3_ac_proc_unit_specific } },
+ { .field = NULL }
+};
+
+/** Processing Unit descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_processing_unit[3] = {
+ desc_audio_1_ac_processing_unit,
+ desc_audio_2_ac_processing_unit,
+ desc_audio_3_ac_processing_unit,
+};
+
+/** Audio Control Feature Unit bmControls; Human readable bit meanings. */
+static const char * const uac_feature_unit_bmcontrols[] = {
+ [ 0] = "Mute",
+ [ 1] = "Volume",
+ [ 2] = "Bass",
+ [ 3] = "Mid",
+ [ 4] = "Treble",
+ [ 5] = "Graphic Equalizer",
+ [ 6] = "Automatic Gain",
+ [ 7] = "Delay",
+ [ 8] = "Bass Boost",
+ [ 9] = "Loudness",
+ [10] = "Input gain",
+ [11] = "Input gain pad",
+ [12] = "Phase inverter",
+ [13] = NULL
+};
+
+/** UAC1: 4.3.2.5 Feature Unit Descriptor; Table 4-7. */
+static const struct desc desc_audio_1_ac_feature_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSourceID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bControlSize", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmaControls", .size_field = "bControlSize", .type = DESC_BMCONTROL_1,
+ .bmcontrol = uac_feature_unit_bmcontrols, .array = { .array = true } },
+ { .field = "iFeature", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.8 Feature Unit Descriptor; Table 4-13. */
+static const struct desc desc_audio_2_ac_feature_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSourceID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bmaControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac_feature_unit_bmcontrols, .array = { .array = true } },
+ { .field = "iFeature", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.7 Feature Unit Descriptor; Table 4-31. */
+static const struct desc desc_audio_3_ac_feature_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmaControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac_feature_unit_bmcontrols, .array = { .array = true } },
+ { .field = "wFeatureDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Feature Unit descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_feature_unit[3] = {
+ desc_audio_1_ac_feature_unit,
+ desc_audio_2_ac_feature_unit,
+ desc_audio_3_ac_feature_unit,
+};
+
+/** UAC2 Extension Unit bmControls; Human readable bit meanings. */
+static const char * const uac2_extension_unit_bmcontrols[] = {
+ [0] = "Enable",
+ [1] = "Cluster",
+ [2] = "Underflow",
+ [3] = "Overflow",
+ [4] = NULL
+};
+
+/** UAC3 Extension Unit bmControls; Human readable bit meanings. */
+static const char * const uac3_extension_unit_bmcontrols[] = {
+ [0] = "Underflow",
+ [1] = "Overflow",
+ [2] = NULL
+};
+
+/** UAC1: 4.3.2.7 Extension Unit Descriptor; Table 4-15. */
+static const struct desc desc_audio_1_ac_extension_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wExtensionCode", .size = 2, .type = DESC_CONSTANT },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "wChannelConfig", .size = 2, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac1_channel_names, .count = 12 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "bControlSize", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 1, .type = DESC_BITMAP,
+ .array = { .array = true, .length_field1 = "bControlSize" } },
+ { .field = "iExtension", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC2: 4.7.2.12 Extension Unit Descriptor; Table 4-24. */
+static const struct desc desc_audio_2_ac_extension_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wExtensionCode", .size = 2, .type = DESC_CONSTANT },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmChannelConfig", .size = 4, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac2_channel_names, .count = 26 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_extension_unit_bmcontrols },
+ { .field = "iExtension", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.11 Extension Unit Descriptor; Table 4-42. */
+static const struct desc desc_audio_3_ac_extension_unit[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wExtensionCode", .size = 2, .type = DESC_CONSTANT },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "wExtensionDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_extension_unit_bmcontrols },
+ { .field = "wClusterDescrID", .size = 2, .type = DESC_NUMBER },
+ { .field = NULL }
+};
+
+/** Extension Unit descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_extension_unit[3] = {
+ desc_audio_1_ac_extension_unit,
+ desc_audio_2_ac_extension_unit,
+ desc_audio_3_ac_extension_unit,
+};
+
+/** UAC2 Clock Source bmControls; Human readable bit meanings. */
+static const char * const uac2_clock_source_bmcontrols[] = {
+ [0] = "Clock Frequency",
+ [1] = "Clock Validity",
+ [2] = NULL
+};
+
+static const char * const uac2_clk_src_bmattr[] = {
+ [0] = "External",
+ [1] = "Internal fixed",
+ [2] = "Internal variable",
+ [3] = "Internal programmable"
+};
+
+static const char * const uac3_clk_src_bmattr[] = {
+ [0] = "External",
+ [1] = "Internal",
+ [2] = "(asynchronous)",
+ [3] = "(synchronized to SOF)"
+};
+
+/** Special rendering function for UAC2 clock source bmAttributes */
+static void desc_snowflake_dump_uac2_clk_src_bmattr(
+ unsigned long long value,
+ unsigned int indent)
+{
+ printf(" %s clock %s\n",
+ uac2_clk_src_bmattr[value & 0x3],
+ (value & 0x4) ? uac3_clk_src_bmattr[3] : "");
+}
+
+/** Special rendering function for UAC3 clock source bmAttributes */
+static void desc_snowflake_dump_uac3_clk_src_bmattr(
+ unsigned long long value,
+ unsigned int indent)
+{
+ printf(" %s clock %s\n",
+ uac3_clk_src_bmattr[(value & 0x1)],
+ uac3_clk_src_bmattr[0x2 | ((value & 0x2) >> 1)]);
+}
+
+/** UAC2: 4.7.2.1 Clock Source Descriptor; Table 4-6. */
+static const struct desc desc_audio_2_ac_clock_source[] = {
+ { .field = "bClockID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bmAttributes", .size = 1, .type = DESC_SNOWFLAKE,
+ .snowflake = desc_snowflake_dump_uac2_clk_src_bmattr },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_clock_source_bmcontrols },
+ { .field = "bAssocTerminal", .size = 1, .type = DESC_CONSTANT },
+ { .field = "iClockSource", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.12 Clock Source Descriptor; Table 4-43. */
+static const struct desc desc_audio_3_ac_clock_source[] = {
+ { .field = "bClockID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmAttributes", .size = 1, .type = DESC_SNOWFLAKE,
+ .snowflake = desc_snowflake_dump_uac3_clk_src_bmattr },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_clock_source_bmcontrols },
+ { .field = "bReferenceTerminal", .size = 1, .type = DESC_NUMBER },
+ { .field = "wClockSourceStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Clock Source descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_clock_source[3] = {
+ NULL, /* UAC1 not supported */
+ desc_audio_2_ac_clock_source,
+ desc_audio_3_ac_clock_source,
+};
+
+/** UAC2 Clock Selector bmControls; Human readable bit meanings. */
+static const char * const uac2_clock_selector_bmcontrols[] = {
+ [0] = "Clock Selector",
+ [1] = NULL
+};
+
+/** UAC2: 4.7.2.2 Clock Selector Descriptor; Table 4-7. */
+static const struct desc desc_audio_2_ac_clock_selector[] = {
+ { .field = "bClockID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baCSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_clock_selector_bmcontrols },
+ { .field = "iClockSelector", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.13 Clock Selector Descriptor; Table 4-44. */
+static const struct desc desc_audio_3_ac_clock_selector[] = {
+ { .field = "bClockID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bNrInPins", .size = 1, .type = DESC_NUMBER },
+ { .field = "baCSourceID", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bNrInPins" } },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_clock_selector_bmcontrols },
+ { .field = "wCSelectorDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Clock Selector descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_clock_selector[3] = {
+ NULL, /* UAC1 not supported */
+ desc_audio_2_ac_clock_selector,
+ desc_audio_3_ac_clock_selector,
+};
+
+/** UAC2 Clock Multiplier bmControls; Human readable bit meanings. */
+static const char * const uac2_clock_multiplier_bmcontrols[] = {
+ [0] = "Clock Numerator",
+ [1] = "Clock Denominator",
+ [2] = NULL
+};
+
+/** UAC2: 4.7.2.3 Clock Multiplier Descriptor; Table 4-8. */
+static const struct desc desc_audio_2_ac_clock_multiplier[] = {
+ { .field = "bClockID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bCSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_clock_multiplier_bmcontrols },
+ { .field = "iClockMultiplier", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.14 Clock Multiplier Descriptor; Table 4-45. */
+static const struct desc desc_audio_3_ac_clock_multiplier[] = {
+ { .field = "bClockID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bCSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_clock_multiplier_bmcontrols },
+ { .field = "wCMultiplierDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Clock Multiplier descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_clock_multiplier[3] = {
+ NULL, /* UAC1 not supported */
+ desc_audio_2_ac_clock_multiplier,
+ desc_audio_3_ac_clock_multiplier,
+};
+
+/** UAC2: 4.7.2.9 Sampling Rate Converter Descriptor; Table 4-14. */
+static const struct desc desc_audio_2_ac_sample_rate_converter[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bSourceID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bCSourceInID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bCSourceOutID", .size = 1, .type = DESC_CONSTANT },
+ { .field = "iSRC", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.5.2.8 Sampling Rate Converter Descriptor; Table 4-32. */
+static const struct desc desc_audio_3_ac_sample_rate_converter[] = {
+ { .field = "bUnitID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSourceID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bCSourceInID", .size = 1, .type = DESC_NUMBER },
+ { .field = "bCSourceOutID", .size = 1, .type = DESC_NUMBER },
+ { .field = "wSRCDescrStr", .size = 2, .type = DESC_CS_STR_DESC_ID },
+ { .field = NULL }
+};
+
+/** Sample Rate Converter descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_ac_sample_rate_converter[3] = {
+ NULL, /* UAC1 not supported */
+ desc_audio_2_ac_sample_rate_converter,
+ desc_audio_3_ac_sample_rate_converter,
+};
+
+/** UAC2 AudioStreaming Interface bmControls; Human readable bit meanings. */
+static const char * const uac2_as_interface_bmcontrols[] = {
+ [0] = "Active Alternate Setting",
+ [1] = "Valid Alternate Setting",
+ [2] = NULL
+};
+
+/** UAC3 AudioStreaming Interface bmControls; Human readable bit meanings. */
+static const char * const uac3_as_interface_bmcontrols[] = {
+ [0] = "Active Alternate Setting",
+ [1] = "Valid Alternate Setting",
+ [2] = "Audio Data Format Control",
+ [3] = NULL
+};
+
+/* wFormatTag hex prefix for format type */
+#define UAC_FORMAT_TYPE_I 0x0
+#define UAC_FORMAT_TYPE_II 0x1
+#define UAC_FORMAT_TYPE_III 0x2
+
+/** Format type I codes; Human-readable values. */
+static const char * const audio_data_format_type_i[] = {
+ [0] = "TYPE_I_UNDEFINED",
+ [1] = "PCM",
+ [2] = "PCM8",
+ [3] = "IEEE_FLOAT",
+ [4] = "ALAW",
+ [5] = "MULAW"
+};
+
+/** Format type II codes; Human-readable values. */
+static const char * const audio_data_format_type_ii[] = {
+ [0] = "TYPE_II_UNDEFINED",
+ [1] = "MPEG",
+ [2] = "AC-3"
+};
+
+/** Format type III codes; Human-readable values. */
+static const char * const audio_data_format_type_iii[] = {
+ [0] = "TYPE_III_UNDEFINED",
+ [1] = "IEC1937_AC-3",
+ [2] = "IEC1937_MPEG-1_Layer1",
+ [3] = "IEC1937_MPEG-Layer2/3/NOEXT",
+ [4] = "IEC1937_MPEG-2_EXT",
+ [5] = "IEC1937_MPEG-2_Layer1_LS",
+ [6] = "IEC1937_MPEG-2_Layer2/3_LS"
+};
+
+/** Special rendering function for UAC1 AS interface wFormatTag */
+static void desc_snowflake_dump_uac1_as_interface_wformattag(
+ unsigned long long value,
+ unsigned int indent)
+{
+ const char *format_string = "undefined";
+
+ /* Format codes are 0xTNNN, where T=Type prefix, NNN = format code. */
+
+ if (value <= ((UAC_FORMAT_TYPE_I << 12) +
+ ARRAY_LEN(audio_data_format_type_i))) {
+ format_string = audio_data_format_type_i[value];
+
+ } else if ((value >= (UAC_FORMAT_TYPE_II << 12)) &&
+ (value <= ((UAC_FORMAT_TYPE_II << 12) +
+ ARRAY_LEN(audio_data_format_type_ii)))) {
+ format_string = audio_data_format_type_ii[value & 0xfff];
+
+ } else if ((value >= (UAC_FORMAT_TYPE_III << 12)) &&
+ (value <= ((UAC_FORMAT_TYPE_III << 12) +
+ ARRAY_LEN(audio_data_format_type_iii)))) {
+ format_string = audio_data_format_type_iii[value & 0xfff];
+ }
+
+ printf(" %s\n", format_string);
+}
+
+/** Special rendering function for UAC2 AS interface bmFormats */
+static void desc_snowflake_dump_uac2_as_interface_bmformats(
+ unsigned long long value,
+ unsigned int indent)
+{
+ unsigned int i;
+
+ printf("\n");
+ for (i = 0; i < 5; i++) {
+ if ((value >> i) & 0x1) {
+ printf("%*s%s\n", indent * 2, "",
+ audio_data_format_type_i[i + 1]);
+ }
+ }
+
+}
+
+/** UAC1: 4.5.2 Class-Specific AS Interface Descriptor; Table 4-19. */
+static const struct desc desc_audio_1_as_interface[] = {
+ { .field = "bTerminalLink", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bDelay", .size = 1, .type = DESC_NUMBER_POSTFIX,
+ .number_postfix = " frames" },
+ { .field = "wFormatTag", .size = 2, .type = DESC_SNOWFLAKE,
+ .snowflake = desc_snowflake_dump_uac1_as_interface_wformattag },
+ { .field = NULL }
+};
+
+/** UAC2: 4.9.2 Class-Specific AS Interface Descriptor; Table 4-27. */
+static const struct desc desc_audio_2_as_interface[] = {
+ { .field = "bTerminalLink", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_as_interface_bmcontrols },
+ { .field = "bFormatType", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bmFormats", .size = 4, .type = DESC_SNOWFLAKE,
+ .snowflake = desc_snowflake_dump_uac2_as_interface_bmformats },
+ { .field = "bNrChannels", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmChannelConfig", .size = 4, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac2_channel_names, .count = 26 } },
+ { .field = "iChannelNames", .size = 1, .type = DESC_STR_DESC_INDEX },
+ { .field = NULL }
+};
+
+/** UAC3: 4.7.2 Class-Specific AS Interface Descriptor; Table 4-49. */
+static const struct desc desc_audio_3_as_interface[] = {
+ { .field = "bTerminalLink", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac3_as_interface_bmcontrols },
+ { .field = "wClusterDescrID", .size = 2, .type = DESC_NUMBER },
+ { .field = "bmFormats", .size = 8, .type = DESC_BITMAP },
+ { .field = "bSubslotSize", .size = 1, .type = DESC_NUMBER },
+ { .field = "bBitResolution", .size = 1, .type = DESC_NUMBER },
+ { .field = "bmAuxProtocols", .size = 2, .type = DESC_BITMAP },
+ { .field = "bControlSize", .size = 1, .type = DESC_NUMBER },
+ { .field = NULL }
+};
+
+/** AudioStreaming Interface descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_as_interface[3] = {
+ desc_audio_1_as_interface,
+ desc_audio_2_as_interface,
+ desc_audio_3_as_interface,
+};
+
+/** UAC1: Data Endpoint bmAttributes; Human readable bit meanings. */
+static const char * const uac1_as_endpoint_bmattributes[] = {
+ [0] = "Sampling Frequency",
+ [1] = "Pitch",
+ [2] = "Audio Data Format Control",
+ [7] = "MaxPacketsOnly"
+};
+
+/** UAC2: Data Endpoint bmAttributes; Human readable bit meanings. */
+static const char * const uac2_as_endpoint_bmattributes[] = {
+ [7] = "MaxPacketsOnly",
+};
+
+/** UAC2 AudioStreaming Interface bmControls; Human readable bit meanings. */
+static const char * const uac2_as_isochronous_audio_data_endpoint_bmcontrols[] = {
+ [0] = "Pitch",
+ [1] = "Data Overrun",
+ [2] = "Data Underrun",
+ [3] = NULL
+};
+
+/** Audio Data Endpoint bLockDelayUnits; Human readable value meanings. */
+static const char * const uac_as_isochronous_audio_data_endpoint_blockdelayunits[] = {
+ [0] = "Undefined",
+ [1] = "Milliseconds",
+ [2] = "Decoded PCM samples",
+ [3] = NULL
+};
+
+/** UAC1: 4.6.1.2 Class-Specific AS Isochronous Audio Data Endpoint Descriptor; Table 4-21. */
+static const struct desc desc_audio_1_as_isochronous_audio_data_endpoint[] = {
+ { .field = "bmAttributes", .size = 1, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac1_as_endpoint_bmattributes, .count = 8 } },
+ { .field = "bLockDelayUnits", .size = 1, .type = DESC_NUMBER_STRINGS,
+ .number_strings = uac_as_isochronous_audio_data_endpoint_blockdelayunits },
+ { .field = "wLockDelay", .size = 2, .type = DESC_NUMBER },
+ { .field = NULL }
+};
+
+/** UAC2: 4.10.1.2 Class-Specific AS Isochronous Audio Data Endpoint Descriptor; Table 4-34. */
+static const struct desc desc_audio_2_as_isochronous_audio_data_endpoint[] = {
+ { .field = "bmAttributes", .size = 1, .type = DESC_BITMAP_STRINGS,
+ .bitmap_strings = { .strings = uac2_as_endpoint_bmattributes, .count = 8 } },
+ { .field = "bmControls", .size = 1, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_as_isochronous_audio_data_endpoint_bmcontrols },
+ { .field = "bLockDelayUnits", .size = 1, .type = DESC_NUMBER_STRINGS,
+ .number_strings = uac_as_isochronous_audio_data_endpoint_blockdelayunits },
+ { .field = "wLockDelay", .size = 2, .type = DESC_NUMBER },
+ { .field = NULL }
+};
+
+/** UAC3: 4.8.1.2 Class-Specific AS Isochronous Audio Data Endpoint Descriptor; Table 4-52. */
+static const struct desc desc_audio_3_as_isochronous_audio_data_endpoint[] = {
+ { .field = "bmControls", .size = 4, .type = DESC_BMCONTROL_2,
+ .bmcontrol = uac2_as_isochronous_audio_data_endpoint_bmcontrols },
+ { .field = "bLockDelayUnits", .size = 1, .type = DESC_NUMBER_STRINGS,
+ .number_strings = uac_as_isochronous_audio_data_endpoint_blockdelayunits },
+ { .field = "wLockDelay", .size = 2, .type = DESC_NUMBER },
+ { .field = NULL }
+};
+
+/** Isochronous Audio Data Endpoint descriptor definitions for the three Audio Device Class protocols */
+const struct desc * const desc_audio_as_isochronous_audio_data_endpoint[3] = {
+ desc_audio_1_as_isochronous_audio_data_endpoint,
+ desc_audio_2_as_isochronous_audio_data_endpoint,
+ desc_audio_3_as_isochronous_audio_data_endpoint,
+};
+
+/** USB3: 9.6.2.7 Configuration Summary Descriptor; Table 9-21. */
+const struct desc desc_usb3_dc_configuration_summary[] = {
+ { .field = "bLength", .size = 1, .type = DESC_NUMBER },
+ { .field = "bDescriptorType", .size = 1, .type = DESC_CONSTANT },
+ { .field = "bDevCapabilityType", .size = 1, .type = DESC_NUMBER },
+ { .field = "bcdVersion", .size = 2, .type = DESC_BCD },
+ { .field = "bClass", .size = 1, .type = DESC_NUMBER },
+ { .field = "bSubClass", .size = 1, .type = DESC_NUMBER },
+ { .field = "bProtocol", .size = 1, .type = DESC_NUMBER },
+ { .field = "bConfigurationCount", .size = 1, .type = DESC_NUMBER },
+ { .field = "bConfigurationIndex", .size = 1, .type = DESC_NUMBER,
+ .array = { .array = true, .length_field1 = "bConfigurationCount" } },
+ { .field = NULL }
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 17:24:01 +0000