512 lines
15 KiB
C
512 lines
15 KiB
C
/*
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LUFA Library
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Copyright (C) Dean Camera, 2017.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaims all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#define __INCLUDE_FROM_USB_DRIVER
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#include "../../Core/USBMode.h"
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#if defined(USB_CAN_BE_HOST)
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#define __INCLUDE_FROM_CDC_DRIVER
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#define __INCLUDE_FROM_CDC_HOST_C
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#include "CDCClassHost.h"
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uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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uint16_t ConfigDescriptorSize,
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void* ConfigDescriptorData)
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{
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USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
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USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
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USB_Descriptor_Endpoint_t* NotificationEndpoint = NULL;
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USB_Descriptor_Interface_t* CDCControlInterface = NULL;
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memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
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if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
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return CDC_ENUMERROR_InvalidConfigDescriptor;
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while (!(DataINEndpoint) || !(DataOUTEndpoint) || !(NotificationEndpoint))
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{
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if (!(CDCControlInterface) ||
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USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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DCOMP_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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if (NotificationEndpoint)
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{
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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DCOMP_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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return CDC_ENUMERROR_NoCompatibleInterfaceFound;
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}
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DataINEndpoint = NULL;
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DataOUTEndpoint = NULL;
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}
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else
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{
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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DCOMP_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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return CDC_ENUMERROR_NoCompatibleInterfaceFound;
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}
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CDCControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
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NotificationEndpoint = NULL;
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}
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continue;
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}
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USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
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if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN)
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{
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if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)
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NotificationEndpoint = EndpointData;
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else
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DataINEndpoint = EndpointData;
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}
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else
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{
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DataOUTEndpoint = EndpointData;
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}
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}
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CDCInterfaceInfo->Config.DataINPipe.Size = le16_to_cpu(DataINEndpoint->EndpointSize);
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CDCInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
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CDCInterfaceInfo->Config.DataINPipe.Type = EP_TYPE_BULK;
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CDCInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
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CDCInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
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CDCInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_BULK;
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CDCInterfaceInfo->Config.NotificationPipe.Size = le16_to_cpu(NotificationEndpoint->EndpointSize);
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CDCInterfaceInfo->Config.NotificationPipe.EndpointAddress = NotificationEndpoint->EndpointAddress;
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CDCInterfaceInfo->Config.NotificationPipe.Type = EP_TYPE_INTERRUPT;
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if (!(Pipe_ConfigurePipeTable(&CDCInterfaceInfo->Config.DataINPipe, 1)))
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return CDC_ENUMERROR_PipeConfigurationFailed;
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if (!(Pipe_ConfigurePipeTable(&CDCInterfaceInfo->Config.DataOUTPipe, 1)))
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return CDC_ENUMERROR_PipeConfigurationFailed;
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if (!(Pipe_ConfigurePipeTable(&CDCInterfaceInfo->Config.NotificationPipe, 1)))
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return CDC_ENUMERROR_PipeConfigurationFailed;
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CDCInterfaceInfo->State.ControlInterfaceNumber = CDCControlInterface->InterfaceNumber;
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CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR);
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CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD | CDC_CONTROL_LINE_IN_DSR);
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CDCInterfaceInfo->State.IsActive = true;
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return CDC_ENUMERROR_NoError;
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}
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static uint8_t DCOMP_CDC_Host_NextCDCControlInterface(void* const CurrentDescriptor)
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{
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USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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if (Header->Type == DTYPE_Interface)
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{
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USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
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if ((Interface->Class == CDC_CSCP_CDCClass) &&
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(Interface->SubClass == CDC_CSCP_ACMSubclass) &&
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(Interface->Protocol == CDC_CSCP_ATCommandProtocol))
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{
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return DESCRIPTOR_SEARCH_Found;
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}
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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static uint8_t DCOMP_CDC_Host_NextCDCDataInterface(void* const CurrentDescriptor)
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{
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USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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if (Header->Type == DTYPE_Interface)
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{
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USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
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if ((Interface->Class == CDC_CSCP_CDCDataClass) &&
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(Interface->SubClass == CDC_CSCP_NoDataSubclass) &&
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(Interface->Protocol == CDC_CSCP_NoDataProtocol))
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{
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return DESCRIPTOR_SEARCH_Found;
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}
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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static uint8_t DCOMP_CDC_Host_NextCDCInterfaceEndpoint(void* const CurrentDescriptor)
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{
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USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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if (Header->Type == DTYPE_Endpoint)
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{
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USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
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uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
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if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) &&
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!(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
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{
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return DESCRIPTOR_SEARCH_Found;
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}
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}
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else if (Header->Type == DTYPE_Interface)
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{
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return DESCRIPTOR_SEARCH_Fail;
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipe.Address);
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Pipe_Unfreeze();
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if (Pipe_IsINReceived())
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{
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USB_Request_Header_t Notification;
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Pipe_Read_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NULL);
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if ((Notification.bRequest == CDC_NOTIF_SerialState) &&
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(Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)))
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{
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Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
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sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
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NULL);
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Pipe_ClearIN();
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EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo);
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}
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else
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{
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Pipe_ClearIN();
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}
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}
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Pipe_Freeze();
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#if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
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CDC_Host_Flush(CDCInterfaceInfo);
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#endif
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}
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uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
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{
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USB_ControlRequest = (USB_Request_Header_t)
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{
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.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
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.bRequest = CDC_REQ_SetLineEncoding,
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.wValue = 0,
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.wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber,
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.wLength = sizeof(CDCInterfaceInfo->State.LineEncoding),
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};
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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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return USB_Host_SendControlRequest(&CDCInterfaceInfo->State.LineEncoding);
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}
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uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
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{
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USB_ControlRequest = (USB_Request_Header_t)
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{
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.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
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.bRequest = CDC_REQ_SetControlLineState,
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.wValue = CDCInterfaceInfo->State.ControlLineStates.HostToDevice,
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.wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber,
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.wLength = 0,
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};
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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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return USB_Host_SendControlRequest(NULL);
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}
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uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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const uint8_t Duration)
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{
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USB_ControlRequest = (USB_Request_Header_t)
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{
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.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
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.bRequest = CDC_REQ_SendBreak,
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.wValue = Duration,
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.wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber,
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.wLength = 0,
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};
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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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return USB_Host_SendControlRequest(NULL);
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}
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uint8_t CDC_Host_SendData(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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const void* const Buffer,
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const uint16_t Length)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL);
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Pipe_Freeze();
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return ErrorCode;
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}
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uint8_t CDC_Host_SendData_P(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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const void* const Buffer,
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const uint16_t Length)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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ErrorCode = Pipe_Write_PStream_LE(Buffer, Length, NULL);
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Pipe_Freeze();
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return ErrorCode;
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}
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uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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const char* const String)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL);
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Pipe_Freeze();
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return ErrorCode;
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}
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uint8_t CDC_Host_SendString_P(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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const char* const String)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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ErrorCode = Pipe_Write_PStream_LE(String, strlen_P(String), NULL);
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Pipe_Freeze();
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return ErrorCode;
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}
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uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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const uint8_t Data)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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if (!(Pipe_IsReadWriteAllowed()))
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{
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Pipe_ClearOUT();
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if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
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return ErrorCode;
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}
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Pipe_Write_8(Data);
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Pipe_Freeze();
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return PIPE_READYWAIT_NoError;
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}
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uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return 0;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipe.Address);
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Pipe_Unfreeze();
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if (Pipe_IsINReceived())
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{
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if (!(Pipe_BytesInPipe()))
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{
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Pipe_ClearIN();
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Pipe_Freeze();
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return 0;
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}
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else
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{
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Pipe_Freeze();
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return Pipe_BytesInPipe();
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}
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}
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else
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{
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Pipe_Freeze();
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return 0;
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}
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}
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int16_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return -1;
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int16_t ReceivedByte = -1;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipe.Address);
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Pipe_Unfreeze();
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if (Pipe_IsINReceived())
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{
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if (Pipe_BytesInPipe())
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ReceivedByte = Pipe_Read_8();
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if (!(Pipe_BytesInPipe()))
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Pipe_ClearIN();
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}
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Pipe_Freeze();
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return ReceivedByte;
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}
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uint8_t CDC_Host_Flush(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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if (!(Pipe_BytesInPipe()))
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return PIPE_READYWAIT_NoError;
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bool BankFull = !(Pipe_IsReadWriteAllowed());
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Pipe_ClearOUT();
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if (BankFull)
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{
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if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
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return ErrorCode;
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Pipe_ClearOUT();
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}
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Pipe_Freeze();
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return PIPE_READYWAIT_NoError;
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}
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#if defined(FDEV_SETUP_STREAM)
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void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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FILE* const Stream)
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{
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*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar, _FDEV_SETUP_RW);
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fdev_set_udata(Stream, CDCInterfaceInfo);
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}
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void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
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FILE* const Stream)
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{
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*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar_Blocking, _FDEV_SETUP_RW);
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fdev_set_udata(Stream, CDCInterfaceInfo);
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}
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static int CDC_Host_putchar(char c,
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FILE* Stream)
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{
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return CDC_Host_SendByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
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}
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static int CDC_Host_getchar(FILE* Stream)
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{
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int16_t ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
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if (ReceivedByte < 0)
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return _FDEV_EOF;
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return ReceivedByte;
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}
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static int CDC_Host_getchar_Blocking(FILE* Stream)
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{
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int16_t ReceivedByte;
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while ((ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))) < 0)
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{
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if (USB_HostState == HOST_STATE_Unattached)
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return _FDEV_EOF;
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CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
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USB_USBTask();
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}
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return ReceivedByte;
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}
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#endif
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void CDC_Host_Event_Stub(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
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{
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}
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#endif
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