--- /dev/null
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2017.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaims all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+#define __INCLUDE_FROM_USB_DRIVER
+#include "../../Core/USBMode.h"
+
+#if defined(USB_CAN_BE_HOST)
+
+#define __INCLUDE_FROM_AOA_DRIVER
+#define __INCLUDE_FROM_ANDROIDACCESSORY_HOST_C
+#include "AndroidAccessoryClassHost.h"
+
+bool AOA_Host_ValidateAccessoryDevice(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ const USB_Descriptor_Device_t* const DeviceDescriptor,
+ bool* const NeedModeSwitch)
+{
+ (void)AOAInterfaceInfo;
+
+ if (DeviceDescriptor->Header.Type != DTYPE_Device)
+ return false;
+
+ *NeedModeSwitch = ((DeviceDescriptor->ProductID != ANDROID_ACCESSORY_PRODUCT_ID) &&
+ (DeviceDescriptor->ProductID != ANDROID_ACCESSORY_ADB_PRODUCT_ID));
+
+ return true;
+}
+
+uint8_t AOA_Host_ConfigurePipes(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ uint16_t ConfigDescriptorSize,
+ void* ConfigDescriptorData)
+{
+ USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
+ USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
+ USB_Descriptor_Interface_t* AOAInterface = NULL;
+
+ memset(&AOAInterfaceInfo->State, 0x00, sizeof(AOAInterfaceInfo->State));
+
+ if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
+ return AOA_ENUMERROR_InvalidConfigDescriptor;
+
+ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ DCOMP_AOA_Host_NextAndroidAccessoryInterface) != DESCRIPTOR_SEARCH_COMP_Found)
+ {
+ return AOA_ENUMERROR_NoCompatibleInterfaceFound;
+ }
+
+ AOAInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
+
+ while (!(DataINEndpoint) || !(DataOUTEndpoint))
+ {
+ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ DCOMP_AOA_Host_NextInterfaceBulkEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
+ {
+ return AOA_ENUMERROR_NoCompatibleInterfaceFound;
+ }
+
+ USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
+
+ if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN)
+ DataINEndpoint = EndpointData;
+ else
+ DataOUTEndpoint = EndpointData;
+ }
+
+ AOAInterfaceInfo->Config.DataINPipe.Size = le16_to_cpu(DataINEndpoint->EndpointSize);
+ AOAInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
+ AOAInterfaceInfo->Config.DataINPipe.Type = EP_TYPE_BULK;
+
+ AOAInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
+ AOAInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
+ AOAInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_BULK;
+
+ if (!(Pipe_ConfigurePipeTable(&AOAInterfaceInfo->Config.DataINPipe, 1)))
+ return AOA_ENUMERROR_PipeConfigurationFailed;
+
+ if (!(Pipe_ConfigurePipeTable(&AOAInterfaceInfo->Config.DataOUTPipe, 1)))
+ return AOA_ENUMERROR_PipeConfigurationFailed;
+
+ AOAInterfaceInfo->State.IsActive = true;
+ AOAInterfaceInfo->State.InterfaceNumber = AOAInterface->InterfaceNumber;
+
+ return AOA_ENUMERROR_NoError;
+}
+
+static uint8_t DCOMP_AOA_Host_NextAndroidAccessoryInterface(void* const CurrentDescriptor)
+{
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+ if (Header->Type == DTYPE_Interface)
+ {
+ USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
+
+ if ((Interface->Class == AOA_CSCP_AOADataClass) &&
+ (Interface->SubClass == AOA_CSCP_AOADataSubclass) &&
+ (Interface->Protocol == AOA_CSCP_AOADataProtocol))
+ {
+ return DESCRIPTOR_SEARCH_Found;
+ }
+ }
+
+ return DESCRIPTOR_SEARCH_NotFound;
+}
+
+static uint8_t DCOMP_AOA_Host_NextInterfaceBulkEndpoint(void* const CurrentDescriptor)
+{
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+ if (Header->Type == DTYPE_Endpoint)
+ {
+ USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
+
+ uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
+
+ if ((EndpointType == EP_TYPE_BULK) && (!(Pipe_IsEndpointBound(Endpoint->EndpointAddress))))
+ return DESCRIPTOR_SEARCH_Found;
+ }
+ else if (Header->Type == DTYPE_Interface)
+ {
+ return DESCRIPTOR_SEARCH_Fail;
+ }
+
+ return DESCRIPTOR_SEARCH_NotFound;
+}
+
+void AOA_Host_USBTask(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
+ return;
+
+ #if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
+ AOA_Host_Flush(AOAInterfaceInfo);
+ #endif
+}
+
+uint8_t AOA_Host_StartAccessoryMode(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
+{
+ uint8_t ErrorCode;
+
+ uint16_t AccessoryProtocol;
+ if ((ErrorCode = AOA_Host_GetAccessoryProtocol(&AccessoryProtocol)) != HOST_WAITERROR_Successful)
+ return ErrorCode;
+
+ if ((AccessoryProtocol != CPU_TO_LE16(AOA_PROTOCOL_AccessoryV1)) && (AccessoryProtocol != CPU_TO_LE16(AOA_PROTOCOL_AccessoryV2)))
+ return AOA_ERROR_LOGICAL_CMD_FAILED;
+
+ for (uint8_t PropertyIndex = 0; PropertyIndex < AOA_STRING_TOTAL_STRINGS; PropertyIndex++)
+ {
+ if ((ErrorCode = AOA_Host_SendPropertyString(AOAInterfaceInfo, PropertyIndex)) != HOST_WAITERROR_Successful)
+ return ErrorCode;
+ }
+
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
+ .bRequest = AOA_REQ_StartAccessoryMode,
+ .wValue = 0,
+ .wIndex = 0,
+ .wLength = 0,
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+ return USB_Host_SendControlRequest(NULL);
+}
+
+static uint8_t AOA_Host_GetAccessoryProtocol(uint16_t* const Protocol)
+{
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_VENDOR | REQREC_DEVICE),
+ .bRequest = AOA_REQ_GetAccessoryProtocol,
+ .wValue = 0,
+ .wIndex = 0,
+ .wLength = sizeof(uint16_t),
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+ return USB_Host_SendControlRequest(Protocol);
+}
+
+static uint8_t AOA_Host_SendPropertyString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ const uint8_t StringIndex)
+{
+ const char* String = AOAInterfaceInfo->Config.PropertyStrings[StringIndex];
+
+ if (String == NULL)
+ String = "";
+
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
+ .bRequest = AOA_REQ_SendString,
+ .wValue = 0,
+ .wIndex = StringIndex,
+ .wLength = (strlen(String) + 1),
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+ return USB_Host_SendControlRequest((char*)String);
+}
+
+uint8_t AOA_Host_SendData(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ const void* const Buffer,
+ const uint16_t Length)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipe.Address);
+
+ Pipe_Unfreeze();
+ ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL);
+ Pipe_Freeze();
+
+ return ErrorCode;
+}
+
+uint8_t AOA_Host_SendString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ const char* const String)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipe.Address);
+
+ Pipe_Unfreeze();
+ ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL);
+ Pipe_Freeze();
+
+ return ErrorCode;
+}
+
+uint8_t AOA_Host_SendByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ const uint8_t Data)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipe.Address);
+ Pipe_Unfreeze();
+
+ if (!(Pipe_IsReadWriteAllowed()))
+ {
+ Pipe_ClearOUT();
+
+ if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
+ return ErrorCode;
+ }
+
+ Pipe_Write_8(Data);
+ Pipe_Freeze();
+
+ return PIPE_READYWAIT_NoError;
+}
+
+uint16_t AOA_Host_BytesReceived(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
+ return 0;
+
+ Pipe_SelectPipe(AOAInterfaceInfo->Config.DataINPipe.Address);
+ Pipe_Unfreeze();
+
+ if (Pipe_IsINReceived())
+ {
+ if (!(Pipe_BytesInPipe()))
+ {
+ Pipe_ClearIN();
+ Pipe_Freeze();
+ return 0;
+ }
+ else
+ {
+ Pipe_Freeze();
+ return Pipe_BytesInPipe();
+ }
+ }
+ else
+ {
+ Pipe_Freeze();
+
+ return 0;
+ }
+}
+
+int16_t AOA_Host_ReceiveByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
+ return -1;
+
+ int16_t ReceivedByte = -1;
+
+ Pipe_SelectPipe(AOAInterfaceInfo->Config.DataINPipe.Address);
+ Pipe_Unfreeze();
+
+ if (Pipe_IsINReceived())
+ {
+ if (Pipe_BytesInPipe())
+ ReceivedByte = Pipe_Read_8();
+
+ if (!(Pipe_BytesInPipe()))
+ Pipe_ClearIN();
+ }
+
+ Pipe_Freeze();
+
+ return ReceivedByte;
+}
+
+uint8_t AOA_Host_Flush(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipe.Address);
+ Pipe_Unfreeze();
+
+ if (!(Pipe_BytesInPipe()))
+ return PIPE_READYWAIT_NoError;
+
+ bool BankFull = !(Pipe_IsReadWriteAllowed());
+
+ Pipe_ClearOUT();
+
+ if (BankFull)
+ {
+ if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
+ return ErrorCode;
+
+ Pipe_ClearOUT();
+ }
+
+ Pipe_Freeze();
+
+ return PIPE_READYWAIT_NoError;
+}
+
+#if defined(FDEV_SETUP_STREAM)
+void AOA_Host_CreateStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ FILE* const Stream)
+{
+ *Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar, _FDEV_SETUP_RW);
+ fdev_set_udata(Stream, AOAInterfaceInfo);
+}
+
+void AOA_Host_CreateBlockingStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
+ FILE* const Stream)
+{
+ *Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar_Blocking, _FDEV_SETUP_RW);
+ fdev_set_udata(Stream, AOAInterfaceInfo);
+}
+
+static int AOA_Host_putchar(char c,
+ FILE* Stream)
+{
+ return AOA_Host_SendByte((USB_ClassInfo_AOA_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
+}
+
+static int AOA_Host_getchar(FILE* Stream)
+{
+ int16_t ReceivedByte = AOA_Host_ReceiveByte((USB_ClassInfo_AOA_Host_t*)fdev_get_udata(Stream));
+
+ if (ReceivedByte < 0)
+ return _FDEV_EOF;
+
+ return ReceivedByte;
+}
+
+static int AOA_Host_getchar_Blocking(FILE* Stream)
+{
+ int16_t ReceivedByte;
+
+ while ((ReceivedByte = AOA_Host_ReceiveByte((USB_ClassInfo_AOA_Host_t*)fdev_get_udata(Stream))) < 0)
+ {
+ if (USB_HostState == HOST_STATE_Unattached)
+ return _FDEV_EOF;
+
+ AOA_Host_USBTask((USB_ClassInfo_AOA_Host_t*)fdev_get_udata(Stream));
+ USB_USBTask();
+ }
+
+ return ReceivedByte;
+}
+#endif
+
+#endif
+
+
projects / qmk_firmware.git / blobdiff