423 lines
12 KiB
C
423 lines
12 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_AOA_DRIVER
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#define __INCLUDE_FROM_ANDROIDACCESSORY_HOST_C
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#include "AndroidAccessoryClassHost.h"
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bool AOA_Host_ValidateAccessoryDevice(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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const USB_Descriptor_Device_t* const DeviceDescriptor,
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bool* const NeedModeSwitch)
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{
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(void)AOAInterfaceInfo;
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if (DeviceDescriptor->Header.Type != DTYPE_Device)
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return false;
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*NeedModeSwitch = ((DeviceDescriptor->ProductID != ANDROID_ACCESSORY_PRODUCT_ID) &&
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(DeviceDescriptor->ProductID != ANDROID_ACCESSORY_ADB_PRODUCT_ID));
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return true;
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}
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uint8_t AOA_Host_ConfigurePipes(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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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_Interface_t* AOAInterface = NULL;
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memset(&AOAInterfaceInfo->State, 0x00, sizeof(AOAInterfaceInfo->State));
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if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
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return AOA_ENUMERROR_InvalidConfigDescriptor;
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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DCOMP_AOA_Host_NextAndroidAccessoryInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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return AOA_ENUMERROR_NoCompatibleInterfaceFound;
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}
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AOAInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
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while (!(DataINEndpoint) || !(DataOUTEndpoint))
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{
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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DCOMP_AOA_Host_NextInterfaceBulkEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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return AOA_ENUMERROR_NoCompatibleInterfaceFound;
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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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DataINEndpoint = EndpointData;
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else
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DataOUTEndpoint = EndpointData;
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}
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AOAInterfaceInfo->Config.DataINPipe.Size = le16_to_cpu(DataINEndpoint->EndpointSize);
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AOAInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
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AOAInterfaceInfo->Config.DataINPipe.Type = EP_TYPE_BULK;
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AOAInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
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AOAInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
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AOAInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_BULK;
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if (!(Pipe_ConfigurePipeTable(&AOAInterfaceInfo->Config.DataINPipe, 1)))
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return AOA_ENUMERROR_PipeConfigurationFailed;
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if (!(Pipe_ConfigurePipeTable(&AOAInterfaceInfo->Config.DataOUTPipe, 1)))
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return AOA_ENUMERROR_PipeConfigurationFailed;
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AOAInterfaceInfo->State.IsActive = true;
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AOAInterfaceInfo->State.InterfaceNumber = AOAInterface->InterfaceNumber;
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return AOA_ENUMERROR_NoError;
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}
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static uint8_t DCOMP_AOA_Host_NextAndroidAccessoryInterface(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 == AOA_CSCP_AOADataClass) &&
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(Interface->SubClass == AOA_CSCP_AOADataSubclass) &&
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(Interface->Protocol == AOA_CSCP_AOADataProtocol))
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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_AOA_Host_NextInterfaceBulkEndpoint(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) && (!(Pipe_IsEndpointBound(Endpoint->EndpointAddress))))
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return DESCRIPTOR_SEARCH_Found;
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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 AOA_Host_USBTask(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
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return;
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#if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
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AOA_Host_Flush(AOAInterfaceInfo);
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#endif
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}
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uint8_t AOA_Host_StartAccessoryMode(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
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{
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uint8_t ErrorCode;
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uint16_t AccessoryProtocol;
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if ((ErrorCode = AOA_Host_GetAccessoryProtocol(&AccessoryProtocol)) != HOST_WAITERROR_Successful)
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return ErrorCode;
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if ((AccessoryProtocol != CPU_TO_LE16(AOA_PROTOCOL_AccessoryV1)) && (AccessoryProtocol != CPU_TO_LE16(AOA_PROTOCOL_AccessoryV2)))
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return AOA_ERROR_LOGICAL_CMD_FAILED;
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for (uint8_t PropertyIndex = 0; PropertyIndex < AOA_STRING_TOTAL_STRINGS; PropertyIndex++)
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{
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if ((ErrorCode = AOA_Host_SendPropertyString(AOAInterfaceInfo, PropertyIndex)) != HOST_WAITERROR_Successful)
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return ErrorCode;
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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_VENDOR | REQREC_DEVICE),
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.bRequest = AOA_REQ_StartAccessoryMode,
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.wValue = 0,
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.wIndex = 0,
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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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static uint8_t AOA_Host_GetAccessoryProtocol(uint16_t* const Protocol)
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{
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USB_ControlRequest = (USB_Request_Header_t)
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{
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.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_VENDOR | REQREC_DEVICE),
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.bRequest = AOA_REQ_GetAccessoryProtocol,
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.wValue = 0,
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.wIndex = 0,
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.wLength = sizeof(uint16_t),
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};
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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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return USB_Host_SendControlRequest(Protocol);
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}
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static uint8_t AOA_Host_SendPropertyString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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const uint8_t StringIndex)
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{
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const char* String = AOAInterfaceInfo->Config.PropertyStrings[StringIndex];
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if (String == NULL)
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String = "";
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USB_ControlRequest = (USB_Request_Header_t)
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{
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.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
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.bRequest = AOA_REQ_SendString,
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.wValue = 0,
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.wIndex = StringIndex,
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.wLength = (strlen(String) + 1),
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};
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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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return USB_Host_SendControlRequest((char*)String);
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}
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uint8_t AOA_Host_SendData(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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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) || !(AOAInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(AOAInterfaceInfo->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 AOA_Host_SendString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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const char* const String)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(AOAInterfaceInfo->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 AOA_Host_SendByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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const uint8_t Data)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(AOAInterfaceInfo->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 AOA_Host_BytesReceived(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
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return 0;
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Pipe_SelectPipe(AOAInterfaceInfo->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 AOA_Host_ReceiveByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
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return -1;
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int16_t ReceivedByte = -1;
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Pipe_SelectPipe(AOAInterfaceInfo->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 AOA_Host_Flush(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
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{
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if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
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return PIPE_READYWAIT_DeviceDisconnected;
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uint8_t ErrorCode;
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Pipe_SelectPipe(AOAInterfaceInfo->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 AOA_Host_CreateStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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FILE* const Stream)
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{
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*Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar, _FDEV_SETUP_RW);
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fdev_set_udata(Stream, AOAInterfaceInfo);
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}
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void AOA_Host_CreateBlockingStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
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FILE* const Stream)
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{
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*Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar_Blocking, _FDEV_SETUP_RW);
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fdev_set_udata(Stream, AOAInterfaceInfo);
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}
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static int AOA_Host_putchar(char c,
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FILE* Stream)
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{
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return AOA_Host_SendByte((USB_ClassInfo_AOA_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
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}
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static int AOA_Host_getchar(FILE* Stream)
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{
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int16_t ReceivedByte = AOA_Host_ReceiveByte((USB_ClassInfo_AOA_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 AOA_Host_getchar_Blocking(FILE* Stream)
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{
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int16_t ReceivedByte;
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while ((ReceivedByte = AOA_Host_ReceiveByte((USB_ClassInfo_AOA_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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AOA_Host_USBTask((USB_ClassInfo_AOA_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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#endif
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