\r
uint8_t ProcessConfigurationDescriptor(void)\r
{\r
- uint8_t* ConfigDescriptorData;\r
- uint16_t ConfigDescriptorSize;\r
+ uint8_t ConfigDescriptorData[512];\r
+ void* CurrConfigLocation = ConfigDescriptorData;\r
+ uint16_t CurrConfigBytesRem;\r
uint8_t FoundEndpoints = 0;\r
- \r
- /* Get Configuration Descriptor size from the device */\r
- if (USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)\r
- return ControlErrorDuringConfigRead;\r
- \r
- /* Ensure that the Configuration Descriptor isn't too large */\r
- if (ConfigDescriptorSize > MAX_CONFIG_DESCRIPTOR_SIZE)\r
- return DescriptorTooLarge;\r
- \r
- /* Allocate enough memory for the entire config descriptor */\r
- ConfigDescriptorData = alloca(ConfigDescriptorSize);\r
\r
/* Retrieve the entire configuration descriptor into the allocated buffer */\r
- USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, ConfigDescriptorData);\r
+ switch (USB_Host_GetDeviceConfigDescriptor(1, &CurrConfigBytesRem, ConfigDescriptorData, sizeof(ConfigDescriptorData)))\r
+ {\r
+ case HOST_GETCONFIG_Successful:\r
+ break;\r
+ case HOST_GETCONFIG_InvalidData:\r
+ return InvalidConfigDataReturned;\r
+ case HOST_GETCONFIG_BuffOverflow:\r
+ return DescriptorTooLarge;\r
+ default:\r
+ return ControlErrorDuringConfigRead;\r
+ }\r
\r
- /* Validate returned data - ensure first entry is a configuration header descriptor */\r
- if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)\r
- return InvalidConfigDataReturned;\r
-\r
- /* The bluetooth USB transport addendium mandates that the data (not streaming voice) endpoints\r
+ /* The bluetooth USB transport addendum mandates that the data (not streaming voice) endpoints\r
be in the first interface descriptor (interface 0) */\r
- USB_GetNextDescriptorOfType(&ConfigDescriptorSize, &ConfigDescriptorData, DTYPE_Interface);\r
+ USB_GetNextDescriptorOfType(&CurrConfigBytesRem, &CurrConfigLocation, DTYPE_Interface);\r
\r
/* Ensure that an interface was found, and the end of the descriptor was not reached */\r
- if (!(ConfigDescriptorSize))\r
+ if (!(CurrConfigBytesRem))\r
return NoInterfaceFound;\r
\r
/* Get the data IN, data OUT and event notification endpoints for the bluetooth interface */\r
(1 << BLUETOOTH_EVENTS_PIPE)))\r
{\r
/* Fetch the next endpoint from the current bluetooth interface */\r
- if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
- NextInterfaceBluetoothDataEndpoint))\r
+ if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,\r
+ NextInterfaceBluetoothDataEndpoint))\r
{\r
/* Descriptor not found, error out */\r
return NoEndpointFound;\r
}\r
\r
- USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);\r
+ USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);\r
\r
/* Check if the endpoint is a bulk or interrupt type endpoint */\r
if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)\r
EndpointData->EndpointAddress, EndpointData->EndpointSize,\r
PIPE_BANK_SINGLE);\r
\r
- Pipe_SetInfiniteINRequests();\r
Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS);\r
\r
/* Set the flag indicating that the events notification pipe has been found */\r
EndpointData->EndpointAddress, EndpointData->EndpointSize,\r
PIPE_BANK_SINGLE);\r
\r
- Pipe_SetInfiniteINRequests();\r
-\r
/* Set the flag indicating that the data IN pipe has been found */\r
FoundEndpoints |= (1 << BLUETOOTH_DATA_IN_PIPE);\r
}\r