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/*
    Title: CDCCallManagementDescriptor

    About: Purpose
        Definition of a class for managing CDC call management descriptors.

    About: Usage
        Should be included in a list of configuration descriptors for a USB
        device.
*/

#ifndef CDCCALLMANAGEMENTDESCRIPTOR_H
#define CDCCALLMANAGEMENTDESCRIPTOR_H

//------------------------------------------------------------------------------
//         Definitions
//------------------------------------------------------------------------------
/*
    Constants: Capabilities
        CDCCallManagementDescriptor_SELFCALLMANAGEMENT - Device handles call
            management itself.
        CDCCallManagementDescriptor_DATACALLMANAGEMENT - Device can exchange
            call management information over a Data class interface.
*/
#define CDCCallManagementDescriptor_SELFCALLMANAGEMENT      (1 << 0)
#define CDCCallManagementDescriptor_DATACALLMANAGEMENT      (1 << 1)

//------------------------------------------------------------------------------
//         Types
//------------------------------------------------------------------------------

#ifdef __ICCARM__          // IAR
#pragma pack(1)            // IAR
#define __attribute__(...) // IAR
#endif                     // IAR

/*
    Type: CDCCallManagementDescriptor
        Describes the processing of calls for the communication class interface.

    Variables:
        bFunctionLength - Size of this descriptor in bytes.
        bDescriptorType - Descriptor type (<CDCDescriptors_INTERFACE>).
        bDescriptorSubtype - Descriptor sub-type (<CDCDescriptors_CALLMANAGEMENT>).
        bmCapabilities - Configuration capabilities (see <Capabilities).
        bDataInterface - Interface number of the data class interface used for
            call management (optional).
*/
typedef struct {

    unsigned char bFunctionLength;
    unsigned char bDescriptorType;
    unsigned char bDescriptorSubtype;
    unsigned char bmCapabilities;
    unsigned char bDataInterface;

} __attribute__ ((packed)) CDCCallManagementDescriptor; // GCC

#ifdef __ICCARM__          // IAR
#pragma pack()             // IAR
#endif                     // IAR

#endif //#ifndef CDCCALLMANAGEMENTDESCRIPTOR_H