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Diffstat (limited to 'lib/lufa/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c')
-rw-r--r--lib/lufa/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c362
1 files changed, 362 insertions, 0 deletions
diff --git a/lib/lufa/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c b/lib/lufa/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
new file mode 100644
index 000000000..867548c00
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
@@ -0,0 +1,362 @@
+/*
+ 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_DEVICE)
+
+#define __INCLUDE_FROM_CDC_DRIVER
+#define __INCLUDE_FROM_CDC_DEVICE_C
+#include "CDCClassDevice.h"
+
+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;
+ }
+}
+
+bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
+
+ CDCInterfaceInfo->Config.DataINEndpoint.Type = EP_TYPE_BULK;
+ CDCInterfaceInfo->Config.DataOUTEndpoint.Type = EP_TYPE_BULK;
+ CDCInterfaceInfo->Config.NotificationEndpoint.Type = EP_TYPE_INTERRUPT;
+
+ if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.DataINEndpoint, 1)))
+ return false;
+
+ if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.DataOUTEndpoint, 1)))
+ return false;
+
+ if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.NotificationEndpoint, 1)))
+ return false;
+
+ return true;
+}
+
+void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return;
+
+ #if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+
+ if (Endpoint_IsINReady())
+ CDC_Device_Flush(CDCInterfaceInfo);
+ #endif
+}
+
+uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ const char* const String)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+ return Endpoint_Write_Stream_LE(String, strlen(String), NULL);
+}
+
+uint8_t CDC_Device_SendString_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ const char* const String)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+ return Endpoint_Write_PStream_LE(String, strlen_P(String), NULL);
+}
+
+uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ const void* const Buffer,
+ const uint16_t Length)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+ return Endpoint_Write_Stream_LE(Buffer, Length, NULL);
+}
+
+uint8_t CDC_Device_SendData_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ const void* const Buffer,
+ const uint16_t Length)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+ return Endpoint_Write_PStream_LE(Buffer, Length, NULL);
+}
+
+uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ const uint8_t Data)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+
+ if (!(Endpoint_IsReadWriteAllowed()))
+ {
+ Endpoint_ClearIN();
+
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
+ return ErrorCode;
+ }
+
+ Endpoint_Write_8(Data);
+ return ENDPOINT_READYWAIT_NoError;
+}
+
+uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+
+ if (!(Endpoint_BytesInEndpoint()))
+ return ENDPOINT_READYWAIT_NoError;
+
+ bool BankFull = !(Endpoint_IsReadWriteAllowed());
+
+ Endpoint_ClearIN();
+
+ if (BankFull)
+ {
+ if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
+ return ErrorCode;
+
+ Endpoint_ClearIN();
+ }
+
+ return ENDPOINT_READYWAIT_NoError;
+}
+
+uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return 0;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpoint.Address);
+
+ if (Endpoint_IsOUTReceived())
+ {
+ if (!(Endpoint_BytesInEndpoint()))
+ {
+ Endpoint_ClearOUT();
+ return 0;
+ }
+ else
+ {
+ return Endpoint_BytesInEndpoint();
+ }
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+int16_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return -1;
+
+ int16_t ReceivedByte = -1;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpoint.Address);
+
+ if (Endpoint_IsOUTReceived())
+ {
+ if (Endpoint_BytesInEndpoint())
+ ReceivedByte = Endpoint_Read_8();
+
+ if (!(Endpoint_BytesInEndpoint()))
+ Endpoint_ClearOUT();
+ }
+
+ return ReceivedByte;
+}
+
+void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return;
+
+ Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.NotificationEndpoint.Address);
+
+ USB_Request_Header_t Notification = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
+ .bRequest = CDC_NOTIF_SerialState,
+ .wValue = CPU_TO_LE16(0),
+ .wIndex = CPU_TO_LE16(0),
+ .wLength = CPU_TO_LE16(sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost)),
+ };
+
+ Endpoint_Write_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NULL);
+ Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
+ sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
+ NULL);
+ Endpoint_ClearIN();
+}
+
+#if defined(FDEV_SETUP_STREAM)
+void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ FILE* const Stream)
+{
+ *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar, _FDEV_SETUP_RW);
+ fdev_set_udata(Stream, CDCInterfaceInfo);
+}
+
+void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ FILE* const Stream)
+{
+ *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar_Blocking, _FDEV_SETUP_RW);
+ fdev_set_udata(Stream, CDCInterfaceInfo);
+}
+
+static int CDC_Device_putchar(char c,
+ FILE* Stream)
+{
+ return CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
+}
+
+static int CDC_Device_getchar(FILE* Stream)
+{
+ int16_t ReceivedByte = CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
+
+ if (ReceivedByte < 0)
+ return _FDEV_EOF;
+
+ return ReceivedByte;
+}
+
+static int CDC_Device_getchar_Blocking(FILE* Stream)
+{
+ int16_t ReceivedByte;
+
+ while ((ReceivedByte = CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))) < 0)
+ {
+ if (USB_DeviceState == DEVICE_STATE_Unattached)
+ return _FDEV_EOF;
+
+ CDC_Device_USBTask((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
+ USB_USBTask();
+ }
+
+ return ReceivedByte;
+}
+#endif
+
+void CDC_Device_Event_Stub(void)
+{
+
+}
+
+#endif
+
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-27 04:42:05 +0000