X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/c1782ac024a42c06680f511c939e653aacdb411d..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/LUFA/Drivers/USB/Class/Device/CDC.c diff --git a/LUFA/Drivers/USB/Class/Device/CDC.c b/LUFA/Drivers/USB/Class/Device/CDC.c index d0cb29ecf..da880abd8 100644 --- a/LUFA/Drivers/USB/Class/Device/CDC.c +++ b/LUFA/Drivers/USB/Class/Device/CDC.c @@ -1,257 +1,345 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, 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 disclaim 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. -*/ - -#include "../../HighLevel/USBMode.h" -#if defined(USB_CAN_BE_DEVICE) - -#define INCLUDE_FROM_CDC_CLASS_DEVICE_C -#include "CDC.h" - -void CDC_Device_Event_Stub(void) -{ - -} - -void CDC_Device_ProcessControlRequest(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo) -{ - if (!(Endpoint_IsSETUPReceived())) - return; - - if (USB_ControlRequest.wIndex != CDCInterfaceInfo->Config.ControlInterfaceNumber) - return; - - switch (USB_ControlRequest.bRequest) - { - case 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 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 REQ_SetControlLineState: - if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) - { - Endpoint_ClearSETUP(); - - CDCInterfaceInfo->State.ControlLineStates.HostToDevice = USB_ControlRequest.wValue; - - EVENT_CDC_Device_ControLineStateChanged(CDCInterfaceInfo); - - Endpoint_ClearStatusStage(); - } - - break; - } -} - -bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo) -{ - memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State)); - - if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber, EP_TYPE_BULK, - ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.DataINEndpointSize, - CDCInterfaceInfo->Config.DataINEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) - { - return false; - } - - if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber, EP_TYPE_BULK, - ENDPOINT_DIR_OUT, CDCInterfaceInfo->Config.DataOUTEndpointSize, - CDCInterfaceInfo->Config.DataOUTEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) - { - return false; - } - - if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.NotificationEndpointNumber, EP_TYPE_INTERRUPT, - ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.NotificationEndpointSize, - CDCInterfaceInfo->Config.NotificationEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) - { - return false; - } - - return true; -} - -void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo) -{ - if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS)) - return; - - Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber); - - if (Endpoint_IsOUTReceived() && !(Endpoint_BytesInEndpoint())) - Endpoint_ClearOUT(); - - CDC_Device_Flush(CDCInterfaceInfo); -} - -uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, char* const Data, const uint16_t Length) -{ - if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS)) - return ENDPOINT_READYWAIT_NoError; - - Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber); - return Endpoint_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK); -} - -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_READYWAIT_NoError; - - Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber); - - if (!(Endpoint_IsReadWriteAllowed())) - { - Endpoint_ClearIN(); - - uint8_t ErrorCode; - - if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError) - return ErrorCode; - } - - Endpoint_Write_Byte(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_READYWAIT_NoError; - - uint8_t ErrorCode; - - Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber); - - 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.DataOUTEndpointNumber); - - if (Endpoint_IsOUTReceived() && !(Endpoint_BytesInEndpoint())) - Endpoint_ClearOUT(); - - return Endpoint_BytesInEndpoint(); -} - -uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo) -{ - if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS)) - return 0; - - Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber); - - uint8_t DataByte = Endpoint_Read_Byte(); - - if (!(Endpoint_BytesInEndpoint())) - Endpoint_ClearOUT(); - - return DataByte; -} - -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.NotificationEndpointNumber); - - USB_Request_Header_t Notification = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), - .bRequest = NOTIF_SerialState, - .wValue = 0, - .wIndex = 0, - .wLength = sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), - }; - - Endpoint_Write_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK); - Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost, - sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), - NO_STREAM_CALLBACK); - Endpoint_ClearIN(); -} - -void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream) -{ - *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar, _FDEV_SETUP_RW); - fdev_set_udata(Stream, CDCInterfaceInfo); -} - -static int CDC_Device_putchar(char c, FILE* Stream) -{ - CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c); - return 0; -} - -static int CDC_Device_getchar(FILE* Stream) -{ - if (!(CDC_Device_BytesReceived((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream)))) - return -1; - - return CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream)); -} - -#endif +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 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 disclaim 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 "CDC.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(); + 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; + } +} + +bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) +{ + memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State)); + + for (uint8_t EndpointNum = 1; EndpointNum < ENDPOINT_TOTAL_ENDPOINTS; EndpointNum++) + { + uint16_t Size; + uint8_t Type; + uint8_t Direction; + bool DoubleBanked; + + if (EndpointNum == CDCInterfaceInfo->Config.DataINEndpointNumber) + { + Size = CDCInterfaceInfo->Config.DataINEndpointSize; + Direction = ENDPOINT_DIR_IN; + Type = EP_TYPE_BULK; + DoubleBanked = CDCInterfaceInfo->Config.DataINEndpointDoubleBank; + } + else if (EndpointNum == CDCInterfaceInfo->Config.DataOUTEndpointNumber) + { + Size = CDCInterfaceInfo->Config.DataOUTEndpointSize; + Direction = ENDPOINT_DIR_OUT; + Type = EP_TYPE_BULK; + DoubleBanked = CDCInterfaceInfo->Config.DataOUTEndpointDoubleBank; + } + else if (EndpointNum == CDCInterfaceInfo->Config.NotificationEndpointNumber) + { + Size = CDCInterfaceInfo->Config.NotificationEndpointSize; + Direction = ENDPOINT_DIR_IN; + Type = EP_TYPE_INTERRUPT; + DoubleBanked = CDCInterfaceInfo->Config.NotificationEndpointDoubleBank; + } + else + { + continue; + } + + if (!(Endpoint_ConfigureEndpoint(EndpointNum, Type, Direction, Size, + DoubleBanked ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) + { + 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) + 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.DataINEndpointNumber); + return Endpoint_Write_Stream_LE(String, strlen(String), NULL); +} + +uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, + const char* const Buffer, + const uint16_t Length) +{ + if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS)) + return ENDPOINT_RWSTREAM_DeviceDisconnected; + + Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber); + return Endpoint_Write_Stream_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.DataINEndpointNumber); + + 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.DataINEndpointNumber); + + 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.DataOUTEndpointNumber); + + 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.DataOUTEndpointNumber); + + 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.NotificationEndpointNumber); + + 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 +