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@ -42,21 +42,6 @@
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#include <avr/pgmspace.h>
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/* Macros: */
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/** Macro to define a CDC class-specific functional descriptor. CDC functional descriptors have a
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* uniform structure but variable sized data payloads, thus cannot be represented accurately by
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* a single typedef struct. A macro is used instead so that functional descriptors can be created
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* easily by specifying the size of the payload. This allows sizeof() to work correctly.
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*
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* \param[in] DataSize Size in bytes of the CDC functional descriptor's data payload
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*/
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#define CDC_FUNCTIONAL_DESCRIPTOR(DataSize) \
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struct \
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{ \
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USB_Descriptor_Header_t Header; \
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uint8_t SubType; \
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uint8_t Data[DataSize]; \
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}
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/** Endpoint number of the first CDC interface's device-to-host notification IN endpoint. */
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#define CDC1_NOTIFICATION_EPNUM 3
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@ -82,6 +67,40 @@
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#define CDC_TXRX_EPSIZE 16
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/* Type Defines: */
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/** Type define for a CDC class-specific functional header descriptor. This indicates to the host that the device
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* contains one or more CDC functional data descriptors, which give the CDC interface's capabilities and configuration.
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* See the CDC class specification for more details.
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*/
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typedef struct
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{
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USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
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uint8_t Subtype; /**< Sub type value used to distinguish between CDC class-specific descriptors. */
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uint16_t CDCSpecification; /**< Version number of the CDC specification implemented by the device,
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* encoded in BCD format.
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*/
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} USB_Descriptor_CDC_FunctionalHeader_t;
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/** Type define for a CDC class-specific functional ACM descriptor. This indicates to the host that the CDC interface
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* supports the CDC ACM subclass of the CDC specification. See the CDC class specification for more details.
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*/
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typedef struct
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{
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USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
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uint8_t Subtype; /**< Sub type value used to distinguish between CDC class-specific descriptors. */
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uint8_t Capabilities; /**< Capabilities of the ACM interface, given as a bit mask. */
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} USB_Descriptor_CDC_FunctionalACM_t;
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/** Type define for a CDC class-specific functional Union descriptor. This indicates to the host that specific
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* CDC control and data interfaces are related. See the CDC class specification for more details.
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*/
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typedef struct
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{
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USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
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uint8_t Subtype; /**< Sub type value used to distinguish between CDC class-specific descriptors. */
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uint8_t MasterInterfaceNumber; /**< Interface number of the CDC Control interface. */
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uint8_t SlaveInterfaceNumber; /**< Interface number of the CDC Data interface. */
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} USB_Descriptor_CDC_FunctionalUnion_t;
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/** Type define for the device configuration descriptor structure. This must be defined in the
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* application code, as the configuration descriptor contains several sub-descriptors which
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* vary between devices, and which describe the device's usage to the host.
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@ -91,18 +110,18 @@
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USB_Descriptor_Configuration_Header_t Config;
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USB_Descriptor_Interface_Association_t CDC1_IAD;
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USB_Descriptor_Interface_t CDC1_CCI_Interface;
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CDC_FUNCTIONAL_DESCRIPTOR(2) CDC1_Functional_IntHeader;
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CDC_FUNCTIONAL_DESCRIPTOR(1) CDC1_Functional_AbstractControlManagement;
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CDC_FUNCTIONAL_DESCRIPTOR(2) CDC1_Functional_Union;
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USB_Descriptor_CDC_FunctionalHeader_t CDC1_Functional_Header;
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USB_Descriptor_CDC_FunctionalACM_t CDC1_Functional_ACM;
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USB_Descriptor_CDC_FunctionalUnion_t CDC1_Functional_Union;
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USB_Descriptor_Endpoint_t CDC1_ManagementEndpoint;
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USB_Descriptor_Interface_t CDC1_DCI_Interface;
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USB_Descriptor_Endpoint_t CDC1_DataOutEndpoint;
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USB_Descriptor_Endpoint_t CDC1_DataInEndpoint;
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USB_Descriptor_Interface_Association_t CDC2_IAD;
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USB_Descriptor_Interface_t CDC2_CCI_Interface;
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CDC_FUNCTIONAL_DESCRIPTOR(2) CDC2_Functional_IntHeader;
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CDC_FUNCTIONAL_DESCRIPTOR(1) CDC2_Functional_AbstractControlManagement;
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CDC_FUNCTIONAL_DESCRIPTOR(2) CDC2_Functional_Union;
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USB_Descriptor_CDC_FunctionalHeader_t CDC2_Functional_Header;
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USB_Descriptor_CDC_FunctionalACM_t CDC2_Functional_ACM;
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USB_Descriptor_CDC_FunctionalUnion_t CDC2_Functional_Union;
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USB_Descriptor_Endpoint_t CDC2_ManagementEndpoint;
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USB_Descriptor_Interface_t CDC2_DCI_Interface;
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USB_Descriptor_Endpoint_t CDC2_DataOutEndpoint;
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Dean Camera
14 years ago