/** * Handles the given request if it is standard, otherwise STALLs it. * \param pDriver Pointer to a USBDDriver instance. * \param pRequest Pointer to a USBGenericRequest instance. */ void USBDDriver_RequestHandler( USBDDriver *pDriver, const USBGenericRequest *pRequest) { uint8_t cfgnum; uint8_t infnum; uint8_t eptnum; uint8_t setting; uint8_t type; uint8_t indexDesc; uint32_t length; uint32_t address; TRACE_INFO_WP("Std "); /* Check request code */ switch (USBGenericRequest_GetRequest(pRequest)) { case USBGenericRequest_GETDESCRIPTOR: TRACE_INFO_WP("gDesc "); /* Send the requested descriptor */ type = USBGetDescriptorRequest_GetDescriptorType(pRequest); indexDesc = USBGetDescriptorRequest_GetDescriptorIndex(pRequest); length = USBGenericRequest_GetLength(pRequest); GetDescriptor(pDriver, type, indexDesc, length); break; case USBGenericRequest_SETADDRESS: TRACE_INFO_WP("sAddr "); /* Sends a zero-length packet and then set the device address */ address = USBSetAddressRequest_GetAddress(pRequest); USBD_Write(0, 0, 0, (TransferCallback) USBD_SetAddress, (void *) address); break; case USBGenericRequest_SETCONFIGURATION: TRACE_INFO_WP("sCfg "); /* Set the requested configuration */ cfgnum = USBSetConfigurationRequest_GetConfiguration(pRequest); SetConfiguration(pDriver, cfgnum); break; case USBGenericRequest_GETCONFIGURATION: TRACE_INFO_WP("gCfg "); /* Send the current configuration number */ GetConfiguration(pDriver); break; case USBGenericRequest_GETSTATUS: TRACE_INFO_WP("gSta "); /* Check who is the recipient */ switch (USBGenericRequest_GetRecipient(pRequest)) { case USBGenericRequest_DEVICE: TRACE_INFO_WP("Dev "); /* Send the device status */ GetDeviceStatus(pDriver); break; case USBGenericRequest_ENDPOINT: TRACE_INFO_WP("Ept "); /* Send the endpoint status */ eptnum = USBGenericRequest_GetEndpointNumber(pRequest); GetEndpointStatus(eptnum); break; default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown recipient (%d)\n\r", USBGenericRequest_GetRecipient(pRequest)); USBD_Stall(0); } break; case USBGenericRequest_CLEARFEATURE: TRACE_INFO_WP("cFeat "); /* Check which is the requested feature */ switch (USBFeatureRequest_GetFeatureSelector(pRequest)) { case USBFeatureRequest_ENDPOINTHALT: TRACE_INFO_WP("Hlt "); /* Unhalt endpoint and send a zero-length packet */ USBD_Unhalt(USBGenericRequest_GetEndpointNumber(pRequest)); USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_DEVICEREMOTEWAKEUP: TRACE_INFO_WP("RmWU "); /* Disable remote wake-up and send a zero-length packet */ pDriver->isRemoteWakeUpEnabled = 0; USBD_Write(0, 0, 0, 0, 0); break; default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown feature selector (%d)\n\r", USBFeatureRequest_GetFeatureSelector(pRequest)); USBD_Stall(0); } break; case USBGenericRequest_SETFEATURE: TRACE_INFO_WP("sFeat "); /* Check which is the selected feature */ switch (USBFeatureRequest_GetFeatureSelector(pRequest)) { case USBFeatureRequest_DEVICEREMOTEWAKEUP: TRACE_INFO_WP("RmWU "); /* Enable remote wake-up and send a ZLP */ pDriver->isRemoteWakeUpEnabled = 1; USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_ENDPOINTHALT: TRACE_INFO_WP("Halt "); /* Halt endpoint */ USBD_Halt(USBGenericRequest_GetEndpointNumber(pRequest)); USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_OTG_B_HNP_ENABLE: TRACE_INFO_WP("OTG_B_HNP_ENABLE "); pDriver->otg_features_supported |= 1<<USBFeatureRequest_OTG_B_HNP_ENABLE; USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_OTG_A_HNP_SUPPORT: TRACE_INFO_WP("OTG_A_HNP_SUPPORT "); pDriver->otg_features_supported |= 1<<USBFeatureRequest_OTG_A_HNP_SUPPORT; USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_OTG_A_ALT_HNP_SUPPORT: TRACE_INFO_WP("OTG_A_ALT_HNP_SUPPORT "); pDriver->otg_features_supported |= 1<<USBFeatureRequest_OTG_A_ALT_HNP_SUPPORT; USBD_Write(0, 0, 0, 0, 0); break; default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown feature selector (%d)\n\r", USBFeatureRequest_GetFeatureSelector(pRequest)); USBD_Stall(0); } break; case USBGenericRequest_SETINTERFACE: TRACE_INFO_WP("sInterface "); infnum = USBInterfaceRequest_GetInterface(pRequest); setting = USBInterfaceRequest_GetAlternateSetting(pRequest); SetInterface(pDriver, infnum, setting); break; case USBGenericRequest_GETINTERFACE: TRACE_INFO_WP("gInterface "); infnum = USBInterfaceRequest_GetInterface(pRequest); GetInterface(pDriver, infnum); break; default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown request code (%d)\n\r", USBGenericRequest_GetRequest(pRequest)); USBD_Stall(0); } }
//------------------------------------------------------------------------------ /// Handles the given request if it is standard, otherwise STALLs it. /// \param pDriver Pointer to a USBDDriver instance. /// \param pRequest Pointer to a USBGenericRequest instance. //------------------------------------------------------------------------------ void USBDDriver_RequestHandler( USBDDriver *pDriver, const USBGenericRequest *pRequest) { unsigned char cfgnum; unsigned char infnum; unsigned char eptnum; unsigned char setting; unsigned char type; unsigned char indexDesc; unsigned int length; unsigned int address; TRACE_INFO_WP("Std "); // Check request code switch (USBGenericRequest_GetRequest(pRequest)) { case USBGenericRequest_GETDESCRIPTOR: TRACE_INFO_WP("gDesc "); // Send the requested descriptor type = USBGetDescriptorRequest_GetDescriptorType(pRequest); indexDesc = USBGetDescriptorRequest_GetDescriptorIndex(pRequest); length = USBGenericRequest_GetLength(pRequest); GetDescriptor(pDriver, type, indexDesc, length); break; case USBGenericRequest_SETADDRESS: TRACE_INFO_WP("sAddr "); // Sends a zero-length packet and then set the device address address = USBSetAddressRequest_GetAddress(pRequest); USBD_Write(0, 0, 0, (TransferCallback) USBD_SetAddress, (void *) address); break; case USBGenericRequest_SETCONFIGURATION: TRACE_INFO_WP("sCfg "); // Set the requested configuration cfgnum = USBSetConfigurationRequest_GetConfiguration(pRequest); SetConfiguration(pDriver, cfgnum); break; case USBGenericRequest_GETCONFIGURATION: TRACE_INFO_WP("gCfg "); // Send the current configuration number GetConfiguration(pDriver); break; case USBGenericRequest_GETSTATUS: TRACE_INFO_WP("gSta "); // Check who is the recipient switch (USBGenericRequest_GetRecipient(pRequest)) { case USBGenericRequest_DEVICE: TRACE_INFO_WP("Dev "); // Send the device status GetDeviceStatus(pDriver); break; case USBGenericRequest_ENDPOINT: TRACE_INFO_WP("Ept "); // Send the endpoint status eptnum = USBGenericRequest_GetEndpointNumber(pRequest); GetEndpointStatus(eptnum); break; default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown recipient (%d)\n\r", USBGenericRequest_GetRecipient(pRequest)); USBD_Stall(0); } break; case USBGenericRequest_CLEARFEATURE: TRACE_INFO_WP("cFeat "); // Check which is the requested feature switch (USBFeatureRequest_GetFeatureSelector(pRequest)) { case USBFeatureRequest_ENDPOINTHALT: TRACE_INFO_WP("Hlt "); // Unhalt endpoint and send a zero-length packet USBD_Unhalt(USBGenericRequest_GetEndpointNumber(pRequest)); USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_DEVICEREMOTEWAKEUP: TRACE_INFO_WP("RmWU "); // Disable remote wake-up and send a zero-length packet pDriver->isRemoteWakeUpEnabled = 0; USBD_Write(0, 0, 0, 0, 0); break; default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown feature selector (%d)\n\r", USBFeatureRequest_GetFeatureSelector(pRequest)); USBD_Stall(0); } break; case USBGenericRequest_SETFEATURE: TRACE_INFO_WP("sFeat "); // Check which is the selected feature switch (USBFeatureRequest_GetFeatureSelector(pRequest)) { case USBFeatureRequest_DEVICEREMOTEWAKEUP: TRACE_INFO_WP("RmWU "); // Enable remote wake-up and send a ZLP pDriver->isRemoteWakeUpEnabled = 1; USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_ENDPOINTHALT: TRACE_INFO_WP("Halt "); // Halt endpoint USBD_Halt(USBGenericRequest_GetEndpointNumber(pRequest)); USBD_Write(0, 0, 0, 0, 0); break; #if defined(CHIP_USB_UDPHS) || defined(CHIP_USB_OTGHS) case USBFeatureRequest_TESTMODE: // 7.1.20 Test Mode Support if ((USBGenericRequest_GetType(pRequest) == USBGenericRequest_DEVICE) && ((USBGenericRequest_GetIndex(pRequest) & 0x000F) == 0)) { // Handle test request USBDDriver_Test(USBFeatureRequest_GetTestSelector(pRequest)); } else { USBD_Stall(0); } break; #endif #if defined(CHIP_USB_OTGHS) case USBFeatureRequest_OTG_B_HNP_ENABLE: TRACE_INFO_WP("OTG_B_HNP_ENABLE "); otg_features_supported |= 1<<USBFeatureRequest_OTG_B_HNP_ENABLE; USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_OTG_A_HNP_SUPPORT: TRACE_INFO_WP("OTG_A_HNP_SUPPORT "); otg_features_supported |= 1<<USBFeatureRequest_OTG_A_HNP_SUPPORT; USBD_Write(0, 0, 0, 0, 0); break; case USBFeatureRequest_OTG_A_ALT_HNP_SUPPORT: TRACE_INFO_WP("OTG_A_ALT_HNP_SUPPORT "); otg_features_supported |= 1<<USBFeatureRequest_OTG_A_ALT_HNP_SUPPORT; USBD_Write(0, 0, 0, 0, 0); break; #endif default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown feature selector (%d)\n\r", USBFeatureRequest_GetFeatureSelector(pRequest)); USBD_Stall(0); } break; case USBGenericRequest_SETINTERFACE: TRACE_INFO_WP("sInterface "); infnum = USBInterfaceRequest_GetInterface(pRequest); setting = USBInterfaceRequest_GetAlternateSetting(pRequest); SetInterface(pDriver, infnum, setting); break; case USBGenericRequest_GETINTERFACE: TRACE_INFO_WP("gInterface "); infnum = USBInterfaceRequest_GetInterface(pRequest); GetInterface(pDriver, infnum); break; default: TRACE_WARNING( "USBDDriver_RequestHandler: Unknown request code (%d)\n\r", USBGenericRequest_GetRequest(pRequest)); USBD_Stall(0); } }
/** * Handles HID-specific SETUP request sent by the host. * \param request Pointer to a USBGenericRequest instance */ void HIDDTransferDriver_RequestHandler(const USBGenericRequest *request) { HIDDTransferDriver *pDrv = &hiddTransferDriver; HIDDFunction *pHidd = &pDrv->hidFunction; TRACE_INFO("NewReq "); /* Check if this is a standard request */ if (USBGenericRequest_GetType(request) == USBGenericRequest_STANDARD) { /* This is a standard request */ switch (USBGenericRequest_GetRequest(request)) { case USBGenericRequest_GETDESCRIPTOR: /* Check if this is a HID descriptor, otherwise forward it to the standard driver */ if (!HIDDTransferDriver_GetDescriptor( USBGetDescriptorRequest_GetDescriptorType(request), USBGenericRequest_GetLength(request))) { USBDDriver_RequestHandler(pHidd->pUsbd, request); } return; /* Handled, no need to do others */ case USBGenericRequest_CLEARFEATURE: /* Check which is the requested feature */ switch (USBFeatureRequest_GetFeatureSelector(request)) { case USBFeatureRequest_ENDPOINTHALT: { uint8_t ep = USBGenericRequest_GetEndpointNumber(request); if (USBD_IsHalted(ep)) { /* Unhalt endpoint restart OUT EP */ USBD_Unhalt(ep); if (ep == pHidd->bPipeOUT) { HIDDFunction_StartPollingOutputs(pHidd); } } /* and send a zero-length packet */ USBD_Write(0, 0, 0, 0, 0); return; /* Handled, no need to do others */ } } break; } } /* We use different buffer for SetReport */ else if (USBGenericRequest_GetType(request) == USBGenericRequest_CLASS) { switch (USBGenericRequest_GetRequest(request)) { case HIDGenericRequest_SETREPORT: { uint16_t length = USBGenericRequest_GetLength(request); uint8_t type = HIDReportRequest_GetReportType(request); if (type == HIDReportRequest_OUTPUT) { if (length > HIDDTransferDriver_REPORTSIZE) length = HIDDTransferDriver_REPORTSIZE; USBD_Read(0, pDrv->iReportBuf, length, HIDDTransferDriver_ReportReceived, 0); /* No argument to the callback function */ } else { USBD_Stall(0); } } return; /* Handled, no need do others */ } } /* Process HID requests */ if (USBRC_SUCCESS == HIDDFunction_RequestHandler(pHidd, request)) { return; } else USBDDriver_RequestHandler(pHidd->pUsbd, request); }