diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/MassStorage.c')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/MassStorage.c | 82 |
1 files changed, 51 insertions, 31 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/MassStorage.c b/LUFA/Drivers/USB/Class/Host/MassStorage.c index 0366703bb..104a358ce 100644 --- a/LUFA/Drivers/USB/Class/Host/MassStorage.c +++ b/LUFA/Drivers/USB/Class/Host/MassStorage.c @@ -38,58 +38,78 @@ uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, uint16_t ConfigDescriptorSize, - void* DeviceConfigDescriptor) + void* ConfigDescriptorData) { - uint8_t FoundEndpoints = 0; - + USB_Descriptor_Endpoint_t* DataINEndpoint = NULL; + USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL; + memset(&MSInterfaceInfo->State, 0x00, sizeof(MSInterfaceInfo->State)); - if (DESCRIPTOR_TYPE(DeviceConfigDescriptor) != DTYPE_Configuration) + if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) return MS_ENUMERROR_InvalidConfigDescriptor; - - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor, - DCOMP_MS_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found) + + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_MS_Host_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found) { - return MS_ENUMERROR_NoMSInterfaceFound; + return MS_ENUMERROR_NoCompatibleInterfaceFound; } - - MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t)->InterfaceNumber; - while (FoundEndpoints != (MS_FOUND_DATAPIPE_IN | MS_FOUND_DATAPIPE_OUT)) + MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t)->InterfaceNumber; + + while (!(DataINEndpoint) || !(DataOUTEndpoint)) { - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor, - DCOMP_MS_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_MS_Host_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) { - return MS_ENUMERROR_EndpointsNotFound; + DataINEndpoint = NULL; + DataOUTEndpoint = NULL; + + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_MS_Host_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found) + { + return MS_ENUMERROR_NoCompatibleInterfaceFound; + } + + MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData, + USB_Descriptor_Interface_t)->InterfaceNumber; + + continue; } - USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Endpoint_t); + USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t); if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) + DataINEndpoint = EndpointData; + else + DataOUTEndpoint = EndpointData; + } + + for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++) + { + if (PipeNum == MSInterfaceInfo->Config.DataINPipeNumber) { - Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - MSInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - MSInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= MS_FOUND_DATAPIPE_IN; + Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_IN, + DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, + MSInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); + + MSInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize; } - else + else if (PipeNum == MSInterfaceInfo->Config.DataOUTPipeNumber) { - Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - MSInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - MSInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= MS_FOUND_DATAPIPE_OUT; - } + Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_OUT, + DataOUTEndpoint->EndpointAddress, DataOUTEndpoint->EndpointSize, + MSInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); + + MSInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize; + } } MSInterfaceInfo->State.IsActive = true; + return MS_ENUMERROR_NoError; } -static uint8_t DCOMP_MS_NextMSInterface(void* const CurrentDescriptor) +static uint8_t DCOMP_MS_Host_NextMSInterface(void* const CurrentDescriptor) { if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) { @@ -107,7 +127,7 @@ static uint8_t DCOMP_MS_NextMSInterface(void* const CurrentDescriptor) return DESCRIPTOR_SEARCH_NotFound; } -static uint8_t DCOMP_MS_NextMSInterfaceEndpoint(void* const CurrentDescriptor) +static uint8_t DCOMP_MS_Host_NextMSInterfaceEndpoint(void* const CurrentDescriptor) { if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) { |