diff options
Diffstat (limited to 'Demos/Host/LowLevel/VirtualSerialHost')
-rw-r--r-- | Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c b/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c index d702771eb..7a8f97235 100644 --- a/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c +++ b/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c @@ -157,12 +157,16 @@ uint8_t ProcessConfigurationDescriptor(void) */ uint8_t DComp_NextCDCControlInterface(void* CurrentDescriptor) { - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Interface) { + USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t); + /* Check the CDC descriptor class, subclass and protocol, break out if correct control interface found */ - if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == CDC_CSCP_CDCClass) && - (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == CDC_CSCP_ACMSubclass) && - (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == CDC_CSCP_ATCommandProtocol)) + if ((Interface->Class == CDC_CSCP_CDCClass) && + (Interface->SubClass == CDC_CSCP_ACMSubclass) && + (Interface->Protocol == CDC_CSCP_ATCommandProtocol)) { return DESCRIPTOR_SEARCH_Found; } @@ -181,12 +185,16 @@ uint8_t DComp_NextCDCControlInterface(void* CurrentDescriptor) */ uint8_t DComp_NextCDCDataInterface(void* CurrentDescriptor) { - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Interface) { + USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t); + /* Check the CDC descriptor class, subclass and protocol, break out if correct data interface found */ - if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == CDC_CSCP_CDCDataClass) && - (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == CDC_CSCP_NoDataSubclass) && - (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == CDC_CSCP_NoDataProtocol)) + if ((Interface->Class == CDC_CSCP_CDCDataClass) && + (Interface->SubClass == CDC_CSCP_NoDataSubclass) && + (Interface->Protocol == CDC_CSCP_NoDataProtocol)) { return DESCRIPTOR_SEARCH_Found; } @@ -207,15 +215,19 @@ uint8_t DComp_NextCDCDataInterface(void* CurrentDescriptor) */ uint8_t DComp_NextCDCDataInterfaceEndpoint(void* CurrentDescriptor) { - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Endpoint) { - uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor, - USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK); + USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t); - if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) - return DESCRIPTOR_SEARCH_Found; + if (((Endpoint->Attributes & EP_TYPE_MASK) == EP_TYPE_BULK) || + ((Endpoint->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)) + { + return DESCRIPTOR_SEARCH_Found; + } } - else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) + else if (Header->Type == DTYPE_Interface) { return DESCRIPTOR_SEARCH_Fail; } |