📄 f320_usb_descriptors.c
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//-----------------------------------------------------------------------------
// F320_USB_Descriptors.c
//-----------------------------------------------------------------------------
// Copyright 2005 Silicon Laboratories, Inc.
// http://www.silabs.com
//
// Program Description:
//
// This is the module contains USB descriptor definitions used for USB
// device enumeration.
//
// FID: 32X000071
// Target: C8051F320
// Tool chain: KEIL C51 7.0.0.1 / KEIL A51 7.0.0.1
// Silicon Laboratories IDE version 2.3
// Command Line: See Readme.txt
// Project Name: F320_TONE_GENERATOR
//
// Release 1.0
// -Initial Revision (PD)
// -05 JUL 2006
//
//
//-----------------------------------------------------------------------------
// Includes
//-----------------------------------------------------------------------------
#include "c8051f320.h" // SFR declarations
#include "F320_Tone_Generator_Main.h" // Main project header
#include "F320_USB_Descriptor.h" // USB descriptor definitions
//-----------------------------------------------------------------------------
// Variable Declaration
//-----------------------------------------------------------------------------
// Descriptor Declarations
code const device_descriptor DeviceDesc =
{ 0x12, // bLength (18) 0x01, // bDescriptorType (DEVICE) 0x1001, // bcdUSB (1.1) 0x00, // bDeviceClass (none) 0x00, // bDeviceSubClass (none) 0x00, // bDeviceProtocol (none) EP0_PACKET_SIZE, // bMaxPacketSize0 (64) LE(VID), // idVendor LE(PID), // idProduct 0x0001, // bcdDevice (1.0) 0x01, // iManufacturer (index 1) 0x02, // iProduct (index 2) 0x00, // iSerialNumber (none) 0x01 // bNumConfigurations (1)
}; // End of DeviceDesc
// This device has one configuration containing 4 total interfaces, three of
// which are active at any one time.
code const complete_configuration ConfigDesc =
{
{ // Standard configuration descriptor
0x09, // bLength (9)
0x02, // bDescriptorType (CONFIGURATION)
0x9100, // wTotallength (145)
0x03, // bNumInterfaces (3)
0x01, // bConfigurationValue (1)
0x00, // iConfiguration (none)
0x80, // bmAttributes (bus-powered)
0x32, // bMaxPower (100 mA)
},
{ // Audio control interface
0x09, // bLength (9)
0x04, // bDescriptorType (INTERFACE)
0x00, // bInterfaceNumber (0)
0x00, // bAlternateSetting (none)
0x00, // bNumEndpoints (none)
0x01, // bInterfaceClass (AUDIO)
0x01, // bInterfaceSubClass (AUDIO_CONTROL)
0x00, // bInterfaceProtocol (none)
0x00 // iInterface (none)
},
{ // Audio class-specific interface header
0x09, // bLength (9)
0x24, // bDescriptorType (CS_INTERFACE)
0x01, // bDescriptorSubtype (HEADER)
0x0001, // bcdADC (1.0)
0x2B00, // wTotalLength (43)
0x01, // bInCollection (1 streaming interface)
0x01 // baInterfaceNr (interface 1 is stream)
},
{ // Audio class-specific input terminal
0x0C, // bLength (12)
0x24, // bDescriptorType (CS_INTERFACE)
0x02, // bDescriptorSubtype (INPUT_TERMINAL)
0x01, // bTerminalID (1)
0x1007, // wTerminalType (radio receiver)
0x00, // bAssocTerminal (none)
0x02, // bNrChannels (2)
0x0300, // wChannelConfig (left, right)
0x00, // iChannelNames (none)
0x00 // iTerminal (none)
},
{ // Audio class-specific feature unit
0x0D, // bLength (13)
0x24, // bDescriptorType (CS_INTERFACE)
0x06, // bDescriptorSubtype (FEATURE_UNIT)
0x02, // bUnitID (2)
0x01, // bSourceID (input terminal 1)
0x02, // bControlSize (2 bytes)
0x0100, // Master controls
0x0000, // Channel 0 controls
0x0000, // Channel 1 controls
0x00 // iFeature (none)
},
{ // Audio class-specific output terminal
0x09, // bLength (9)
0x24, // bDescriptorType (CS_INTERFACE)
0x03, // bDescriptorSubtype (OUTPUT_TERMINAL)
0x03, // bTerminalID (3)
0x0101, // wTerminalType (USB streaming)
0x00, // bAssocTerminal (none)
0x02, // bSourceID (feature unit 2)
0x00 // iTerminal (none)
},
{ // Audio zero-bandwidth interface
0x09, // bLength (9)
0x04, // bDescriptorType (INTERFACE)
0x01, // bInterfaceNumber (1)
0x00, // bAlternateSetting (0)
0x00, // bNumEndpoints (0)
0x01, // bInterfaceClass (AUDIO)
0x02, // bInterfaceSubClass (AUDIO_STREAMING)
0x00, // bInterfaceProtocol (none)
0x00 // iInterface (none)
},
{ // Audio streaming interface (alternate)
0x09, // bLength (9)
0x04, // bDescriptorType (INTERFACE)
0x01, // bInterfaceNumber (1)
0x01, // bAlternateSetting (1)
0x01, // bNumEndpoints (1)
0x01, // bInterfaceClass (AUDIO)
0x02, // bInterfaceSubClass (AUDIO_STREAMING)
0x00, // bInterfaceProtocol (none)
0x00 // iInterface (none)
},
{ // Audio class-specific stream interface
0x07, // bLength (7)
0x24, // bDescriptorType (CS_INTERFACE)
0x01, // bDescriptorSubtype (AS_GENERAL)
0x03, // bTerminalLink (terminal 3)
0x00, // bDelay (none)
0x0100 // wFormatTag (PCM format)
},
{ // Audio class-specific type I format
0x0B, // bLength (11)
0x24, // bDescriptorType (CS_INTERFACE)
0x02, // bDescriptorSubtype (FORMAT_TYPE)
0x01, // bFormatType (TYPE_I)
0x02, // bNrChannels (2)
0x02, // bSubFrameSize (2)
// The next field should be 10, but 16 works with more standard software
0x10, // bBitResolution (16)
0x01, // bSamFreqType (1 sampling frequency)
0x80, // 48,000 Hz (byte 0)
0xBB, // 48,000 Hz (byte 1)
0x00 // 48,000 Hz (byte 2)
},
{ // Audio streaming isochronous endpoint
0x09, // bLength (9)
0x05, // bDescriptorType (ENDPOINT)
0x83, // bEndpointAddress (EP3 in)
0x05, // bmAttributes (asynchronous)
0x0002, // wMaxPacketSize (512)
0x01, // bInterval (1 millisecond)
0x00, // bRefresh (0)
0x00 // bSynchAddress (no synchronization)
},
{ // Audio isochronous endpoint
0x07, // bLength (7)
0x25, // bDescriptorType (CS_ENDPOINT)
0x01, // bDescriptorSubtype (EP_GENERAL)
0x00, // bmAttributes (none)
0x02, // bLockDelayUnits (PCM samples)
0x0000 // wLockDelay (0)
},
{ // HID interface
0x09, // bLength (9)
0x04, // bDescriptorType (INTERFACE)
0x02, // bInterfaceNumber (2)
0x00, // bAlternateSetting (0)
0x02, // bNumEndpoints (2)
0x03, // bInterfaceClass (HID)
0x00, // bInterfaceSubClass (none)
0x00, // bInterfaceProtocol (none)
0x00 // iInterface (none)
},
{ // HID descriptor
0x09, // bLength (9)
0x21, // bDescriptorType (HID_DESCRIPTOR)
0x1101, // bcdHID (1.11)
0x00, // bCountryCode (none)
0x01, // bNumDescriptors (1 class descriptor)
0x22, // bClassDescriptorType (report descr.)
LE(HID_REPORT_SIZE) // wDescriptorLength (203)
},
{ // HID interrupt in endpoint
0x07, // bLength (7)
0x05, // bDescriptorType (ENDPOINT)
0x81, // bEndpointAddress (EP1 in)
0x03, // bmAttributes (interrupt)
0x4000, // wMaxPacketSize (64)
0x0A // bInterval (10 milliseconds)
},
{ // HID interrupt out endpoint
0x07, // bLength (7)
0x05, // bDescriptorType (ENDPOINT)
0x02, // bEndpointAddress (EP2 out)
0x03, // bmAttributes (interrupt)
0x4000, // wMaxPacketSize (64)
0x01 // bInterval (1 millisecond)
}
}; // End of ConfigDesc
code const hid_report_descriptor HidReportDesc =
{
0x06, 0x00, 0xFF, // USAGE_PAGE (Vendor Defined Page 1)
0x09, 0x01, // USAGE (Vendor Usage 1)
0xA1, 0x01, // COLLECTION (Application)
0xC0 // END_COLLECTION
}; // End of hid_report_descriptor
#define STR0LEN 4
code const BYTE String0Desc[STR0LEN] =
{
STR0LEN, 0x03, 0x09, 0x04
}; // End of String0Desc
#define STR1LEN sizeof("SILICON LABORATORIES INC.")*2
code const BYTE String1Desc[STR1LEN] =
{
STR1LEN, 0x03,
'S', 0,
'I', 0,
'L', 0,
'I', 0,
'C', 0,
'O', 0,
'N', 0,
' ', 0,
'L', 0,
'A', 0,
'B', 0,
'O', 0,
'R', 0,
'A', 0,
'T', 0,
'O', 0,
'R', 0,
'I', 0,
'E', 0,
'S', 0,
' ', 0,
'I', 0,
'N', 0,
'C', 0,
'.', 0
}; // End of String1Desc
#define STR2LEN sizeof("TONE GENERATOR")*2
code const BYTE String2Desc[STR2LEN] =
{
STR2LEN, 0x03,
'T', 0,
'O', 0,
'N', 0,
'E', 0,
' ', 0,
'G', 0,
'E', 0,
'N', 0,
'E', 0,
'R', 0,
'A', 0,
'T', 0,
'O', 0,
'R', 0
}; // End of String2Desc
code const BYTE* StringDescTable[] =
{
String0Desc,
String1Desc,
String2Desc
};
// These are response packets used for communication with host
code const BYTE ONES_PACKET[2] = {0x01, 0x00};
code const BYTE ZERO_PACKET[2] = {0x00, 0x00};
//-----------------------------------------------------------------------------
// End Of File
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