--- /dev/null
+/*
+ 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(1,1,0),
+ .Class = USB_CSCP_NoDeviceClass,
+ .SubClass = USB_CSCP_NoDeviceSubclass,
+ .Protocol = USB_CSCP_NoDeviceProtocol,
+
+ .Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
+
+ .VendorID = 0x03EB,
+ .ProductID = 0x2046,
+ .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_STREAMING,
+ .AssociatedOutputTerminal = 0x00,
+
+ .TotalChannels = 2,
+ .ChannelConfig = (AUDIO_CHANNEL_LEFT_FRONT | AUDIO_CHANNEL_RIGHT_FRONT),
+
+ .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_OUT_SPEAKER,
+ .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 = 0x01,
+
+ .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 = 0x02,
+
+ .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 Out 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;
+}
+
projects / qmk_firmware.git / blobdiff