1 files changed, 312 insertions, 0 deletions

diff --git a/lib/lufa/Demos/Device/ClassDriver/AudioInput/Descriptors.c b/lib/lufa/Demos/Device/ClassDriver/AudioInput/Descriptors.c
new file mode 100644
index 000000000..82cb337da
--- /dev/null
+++ b/lib/lufa/Demos/Device/ClassDriver/AudioInput/Descriptors.c
@@ -0,0 +1,312 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  USB Device Descriptors, for library use when in USB device mode. Descriptors are special
+ *  computer-readable structures which the host requests upon device enumeration, to determine
+ *  the device's capabilities and functions.
+ */
+
+#include "Descriptors.h"
+
+/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
+ *  device characteristics, including the supported USB version, control endpoint size and the
+ *  number of device configurations. The descriptor is read out by the USB host when the enumeration
+ *  process begins.
+ */
+const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
+{
+        .Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
+
+        .USBSpecification       = VERSION_BCD(2,0,0),
+        .Class                  = USB_CSCP_NoDeviceClass,
+        .SubClass               = USB_CSCP_NoDeviceSubclass,
+        .Protocol               = USB_CSCP_NoDeviceProtocol,
+
+        .Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,
+
+        .VendorID               = 0x03EB,
+        .ProductID              = 0x2047,
+        .ReleaseNumber          = VERSION_BCD(0,0,2),
+
+        .ManufacturerStrIndex   = STRING_ID_Manufacturer,
+        .ProductStrIndex        = STRING_ID_Product,
+        .SerialNumStrIndex      = NO_DESCRIPTOR,
+
+        .NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
+};
+
+/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
+ *  of the device in one of its supported configurations, including information about any device interfaces
+ *  and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
+ *  a configuration so that the host may correctly communicate with the USB device.
+ */
+const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
+{
+        .Config =
+                {
+                        .Header                   = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
+
+                        .TotalConfigurationSize   = sizeof(USB_Descriptor_Configuration_t),
+                        .TotalInterfaces          = 2,
+
+                        .ConfigurationNumber      = 1,
+                        .ConfigurationStrIndex    = NO_DESCRIPTOR,
+
+                        .ConfigAttributes         = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED),
+
+                        .MaxPowerConsumption      = USB_CONFIG_POWER_MA(100)
+                },
+
+        .Audio_ControlInterface =
+                {
+                        .Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
+
+                        .InterfaceNumber          = INTERFACE_ID_AudioControl,
+                        .AlternateSetting         = 0,
+
+                        .TotalEndpoints           = 0,
+
+                        .Class                    = AUDIO_CSCP_AudioClass,
+                        .SubClass                 = AUDIO_CSCP_ControlSubclass,
+                        .Protocol                 = AUDIO_CSCP_ControlProtocol,
+
+                        .InterfaceStrIndex        = NO_DESCRIPTOR
+                },
+
+        .Audio_ControlInterface_SPC =
+                {
+                        .Header                   = {.Size = sizeof(USB_Audio_Descriptor_Interface_AC_t), .Type = DTYPE_CSInterface},
+                        .Subtype                  = AUDIO_DSUBTYPE_CSInterface_Header,
+
+                        .ACSpecification          = VERSION_BCD(1,0,0),
+                        .TotalLength              = (sizeof(USB_Audio_Descriptor_Interface_AC_t) +
+                                                     sizeof(USB_Audio_Descriptor_InputTerminal_t) +
+                                                     sizeof(USB_Audio_Descriptor_OutputTerminal_t)),
+
+                        .InCollection             = 1,
+                        .InterfaceNumber          = INTERFACE_ID_AudioStream,
+                },
+
+        .Audio_InputTerminal =
+                {
+                        .Header                   = {.Size = sizeof(USB_Audio_Descriptor_InputTerminal_t), .Type = DTYPE_CSInterface},
+                        .Subtype                  = AUDIO_DSUBTYPE_CSInterface_InputTerminal,
+
+                        .TerminalID               = 0x01,
+                        .TerminalType             = AUDIO_TERMINAL_IN_MIC,
+                        .AssociatedOutputTerminal = 0x00,
+
+                        .TotalChannels            = 1,
+                        .ChannelConfig            = 0,
+
+                        .ChannelStrIndex          = NO_DESCRIPTOR,
+                        .TerminalStrIndex         = NO_DESCRIPTOR
+                },
+
+        .Audio_OutputTerminal =
+                {
+                        .Header                   = {.Size = sizeof(USB_Audio_Descriptor_OutputTerminal_t), .Type = DTYPE_CSInterface},
+                        .Subtype                  = AUDIO_DSUBTYPE_CSInterface_OutputTerminal,
+
+                        .TerminalID               = 0x02,
+                        .TerminalType             = AUDIO_TERMINAL_STREAMING,
+                        .AssociatedInputTerminal  = 0x00,
+
+                        .SourceID                 = 0x01,
+
+                        .TerminalStrIndex         = NO_DESCRIPTOR
+                },
+
+        .Audio_StreamInterface_Alt0 =
+                {
+                        .Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
+
+                        .InterfaceNumber          = INTERFACE_ID_AudioStream,
+                        .AlternateSetting         = 0,
+
+                        .TotalEndpoints           = 0,
+
+                        .Class                    = AUDIO_CSCP_AudioClass,
+                        .SubClass                 = AUDIO_CSCP_AudioStreamingSubclass,
+                        .Protocol                 = AUDIO_CSCP_StreamingProtocol,
+
+                        .InterfaceStrIndex        = NO_DESCRIPTOR
+                },
+
+        .Audio_StreamInterface_Alt1 =
+                {
+                        .Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
+
+                        .InterfaceNumber          = INTERFACE_ID_AudioStream,
+                        .AlternateSetting         = 1,
+
+                        .TotalEndpoints           = 1,
+
+                        .Class                    = AUDIO_CSCP_AudioClass,
+                        .SubClass                 = AUDIO_CSCP_AudioStreamingSubclass,
+                        .Protocol                 = AUDIO_CSCP_StreamingProtocol,
+
+                        .InterfaceStrIndex        = NO_DESCRIPTOR
+                },
+
+        .Audio_StreamInterface_SPC =
+                {
+                        .Header                   = {.Size = sizeof(USB_Audio_Descriptor_Interface_AS_t), .Type = DTYPE_CSInterface},
+                        .Subtype                  = AUDIO_DSUBTYPE_CSInterface_General,
+
+                        .TerminalLink             = 0x02,
+
+                        .FrameDelay               = 1,
+                        .AudioFormat              = 0x0001
+                },
+
+        .Audio_AudioFormat =
+                {
+                        .Header                   = {.Size = sizeof(USB_Audio_Descriptor_Format_t) +
+                                                             sizeof(ConfigurationDescriptor.Audio_AudioFormatSampleRates),
+                                                     .Type = DTYPE_CSInterface},
+                        .Subtype                  = AUDIO_DSUBTYPE_CSInterface_FormatType,
+
+                        .FormatType               = 0x01,
+                        .Channels                 = 0x01,
+
+                        .SubFrameSize             = 0x02,
+                        .BitResolution            = 16,
+
+                        .TotalDiscreteSampleRates = (sizeof(ConfigurationDescriptor.Audio_AudioFormatSampleRates) / sizeof(USB_Audio_SampleFreq_t))
+                },
+
+        .Audio_AudioFormatSampleRates =
+                {
+                        AUDIO_SAMPLE_FREQ(8000),
+                        AUDIO_SAMPLE_FREQ(11025),
+                        AUDIO_SAMPLE_FREQ(22050),
+                        AUDIO_SAMPLE_FREQ(44100),
+                        AUDIO_SAMPLE_FREQ(48000),
+                },
+
+        .Audio_StreamEndpoint =
+                {
+                        .Endpoint =
+                                {
+                                        .Header              = {.Size = sizeof(USB_Audio_Descriptor_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},
+
+                                        .EndpointAddress     = AUDIO_STREAM_EPADDR,
+                                        .Attributes          = (EP_TYPE_ISOCHRONOUS | ENDPOINT_ATTR_SYNC | ENDPOINT_USAGE_DATA),
+                                        .EndpointSize        = AUDIO_STREAM_EPSIZE,
+                                        .PollingIntervalMS   = 0x01
+                                },
+
+                        .Refresh                  = 0,
+                        .SyncEndpointNumber       = 0
+                },
+
+        .Audio_StreamEndpoint_SPC =
+                {
+                        .Header                   = {.Size = sizeof(USB_Audio_Descriptor_StreamEndpoint_Spc_t), .Type = DTYPE_CSEndpoint},
+                        .Subtype                  = AUDIO_DSUBTYPE_CSEndpoint_General,
+
+                        .Attributes               = (AUDIO_EP_ACCEPTS_SMALL_PACKETS | AUDIO_EP_SAMPLE_FREQ_CONTROL),
+
+                        .LockDelayUnits           = 0x00,
+                        .LockDelay                = 0x0000
+                }
+};
+
+/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
+ *  the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
+ *  via the language ID table available at USB.org what languages the device supports for its string descriptors.
+ */
+const USB_Descriptor_String_t PROGMEM LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG);
+
+/** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable
+ *  form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
+ *  Descriptor.
+ */
+const USB_Descriptor_String_t PROGMEM ManufacturerString = USB_STRING_DESCRIPTOR(L"Dean Camera");
+
+/** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
+ *  and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
+ *  Descriptor.
+ */
+const USB_Descriptor_String_t PROGMEM ProductString = USB_STRING_DESCRIPTOR(L"LUFA Audio In Demo");
+
+/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
+ *  documentation) by the application code so that the address and size of a requested descriptor can be given
+ *  to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
+ *  is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
+ *  USB host.
+ */
+uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+                                    const uint16_t wIndex,
+                                    const void** const DescriptorAddress)
+{
+        const uint8_t  DescriptorType   = (wValue >> 8);
+        const uint8_t  DescriptorNumber = (wValue & 0xFF);
+
+        const void* Address = NULL;
+        uint16_t    Size    = NO_DESCRIPTOR;
+
+        switch (DescriptorType)
+        {
+                case DTYPE_Device:
+                        Address = &DeviceDescriptor;
+                        Size    = sizeof(USB_Descriptor_Device_t);
+                        break;
+                case DTYPE_Configuration:
+                        Address = &ConfigurationDescriptor;
+                        Size    = sizeof(USB_Descriptor_Configuration_t);
+                        break;
+                case DTYPE_String:
+                        switch (DescriptorNumber)
+                        {
+                                case STRING_ID_Language:
+                                        Address = &LanguageString;
+                                        Size    = pgm_read_byte(&LanguageString.Header.Size);
+                                        break;
+                                case STRING_ID_Manufacturer:
+                                        Address = &ManufacturerString;
+                                        Size    = pgm_read_byte(&ManufacturerString.Header.Size);
+                                        break;
+                                case STRING_ID_Product:
+                                        Address = &ProductString;
+                                        Size    = pgm_read_byte(&ProductString.Header.Size);
+                                        break;
+                        }
+
+                        break;
+        }
+
+        *DescriptorAddress = Address;
+        return Size;
+}
+