void CDC_Device_ProcessControlRequest(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) { if (!(Endpoint_IsSETUPReceived())) return; if (USB_ControlRequest.wIndex != CDCInterfaceInfo->Config.ControlInterfaceNumber) return; switch (USB_ControlRequest.bRequest) { case CDC_REQ_GetLineEncoding: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); Endpoint_Write_Control_Stream_LE(&CDCInterfaceInfo->State.LineEncoding, sizeof(CDCInterfaceInfo->State.LineEncoding)); Endpoint_ClearOUT(); } break; case CDC_REQ_SetLineEncoding: if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); Endpoint_Read_Control_Stream_LE(&CDCInterfaceInfo->State.LineEncoding, sizeof(CDCInterfaceInfo->State.LineEncoding)); Endpoint_ClearIN(); EVENT_CDC_Device_LineEncodingChanged(CDCInterfaceInfo); } break; case CDC_REQ_SetControlLineState: if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); Endpoint_ClearStatusStage(); CDCInterfaceInfo->State.ControlLineStates.HostToDevice = USB_ControlRequest.wValue; EVENT_CDC_Device_ControLineStateChanged(CDCInterfaceInfo); } break; case CDC_REQ_SendBreak: if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); Endpoint_ClearStatusStage(); EVENT_CDC_Device_BreakSent(CDCInterfaceInfo, (uint8_t)USB_ControlRequest.wValue); } break; } }
void CDC_Device_ProcessControlRequest(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) { if (!(Endpoint_IsSETUPReceived())) return; if (USB_ControlRequest.wIndex != CDCInterfaceInfo->Config.ControlInterfaceNumber) return; switch (USB_ControlRequest.bRequest) { case CDC_REQ_GetLineEncoding: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); while (!(Endpoint_IsINReady())); Endpoint_Write_32_LE(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS); Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.CharFormat); Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.ParityType); Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.DataBits); Endpoint_ClearIN(); Endpoint_ClearStatusStage(); } break; case CDC_REQ_SetLineEncoding: if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); while (!(Endpoint_IsOUTReceived())) { if (USB_DeviceState == DEVICE_STATE_Unattached) return; } CDCInterfaceInfo->State.LineEncoding.BaudRateBPS = Endpoint_Read_32_LE(); CDCInterfaceInfo->State.LineEncoding.CharFormat = Endpoint_Read_8(); CDCInterfaceInfo->State.LineEncoding.ParityType = Endpoint_Read_8(); CDCInterfaceInfo->State.LineEncoding.DataBits = Endpoint_Read_8(); Endpoint_ClearOUT(); Endpoint_ClearStatusStage(); EVENT_CDC_Device_LineEncodingChanged(CDCInterfaceInfo); } break; case CDC_REQ_SetControlLineState: if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); Endpoint_ClearStatusStage(); CDCInterfaceInfo->State.ControlLineStates.HostToDevice = USB_ControlRequest.wValue; EVENT_CDC_Device_ControLineStateChanged(CDCInterfaceInfo); } break; case CDC_REQ_SendBreak: if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) { Endpoint_ClearSETUP(); Endpoint_ClearStatusStage(); EVENT_CDC_Device_BreakSent(CDCInterfaceInfo, (uint8_t)USB_ControlRequest.wValue); } break; } }