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[pub/USBasp.git] / 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 a6e5e26..b8a673f 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/CDC.c
+++ b/LUFA/Drivers/USB/Class/Device/CDC.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -91,21 +91,21 @@ bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)
 \r
        if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber, EP_TYPE_BULK,\r
                                                                 ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.DataINEndpointSize,\r
 \r
        if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber, EP_TYPE_BULK,\r
                                                                 ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.DataINEndpointSize,\r

-                                                                ENDPOINT_BANK_SINGLE)))\r
+                                                                CDCInterfaceInfo->Config.DataINEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE)))\r

        {\r
                return false;\r
        }\r
 \r
        if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber, EP_TYPE_BULK,\r
                                         ENDPOINT_DIR_OUT, CDCInterfaceInfo->Config.DataOUTEndpointSize,\r
        {\r
                return false;\r
        }\r
 \r
        if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber, EP_TYPE_BULK,\r
                                         ENDPOINT_DIR_OUT, CDCInterfaceInfo->Config.DataOUTEndpointSize,\r

-                                        ENDPOINT_BANK_SINGLE)))\r
+                                        CDCInterfaceInfo->Config.DataOUTEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE)))\r

        {\r
                return false;\r
        }\r
 \r
        if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.NotificationEndpointNumber, EP_TYPE_INTERRUPT,\r
                                         ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.NotificationEndpointSize,\r
        {\r
                return false;\r
        }\r
 \r
        if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.NotificationEndpointNumber, EP_TYPE_INTERRUPT,\r
                                         ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.NotificationEndpointSize,\r

-                                        ENDPOINT_BANK_SINGLE)))\r
+                                        CDCInterfaceInfo->Config.NotificationEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE)))\r

        {\r
                return false;\r
        }\r
        {\r
                return false;\r
        }\r


@@ -115,61 +115,97 @@ bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)
 \r
 void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)\r
 {\r
 \r
 void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)\r
 {\r

-       if (USB_DeviceState != DEVICE_STATE_Configured)\r
+       if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r

          return;\r
 \r
          return;\r
 \r

-       Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r
+       Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);\r

 \r
 \r

-       if (!(Endpoint_BytesInEndpoint()))\r
-         return;\r
+       if (Endpoint_IsOUTReceived() && !(Endpoint_BytesInEndpoint()))\r
+         Endpoint_ClearOUT();\r

          \r
          \r

-       if (!(Endpoint_IsReadWriteAllowed()))\r
-       {\r
-               Endpoint_ClearIN();\r
-               Endpoint_WaitUntilReady();\r
-       }       \r
-       \r
-       Endpoint_ClearIN();\r
+       CDC_Device_Flush(CDCInterfaceInfo);\r

 }\r
 \r
 }\r
 \r

-void CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, char* const Data, const uint16_t Length)\r
+uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, char* const Data, const uint16_t Length)\r

 {\r
        if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r
 {\r
        if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r

-         return;\r
+         return ENDPOINT_RWSTREAM_DeviceDisconnected;\r

        \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r
        \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r

-       Endpoint_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK);\r
+       return Endpoint_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK);\r

 }\r
 \r
 }\r
 \r

-void CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Data)\r
+uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Data)\r

 {\r
        if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r
 {\r
        if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r

-         return;\r
+         return ENDPOINT_RWSTREAM_DeviceDisconnected;\r

 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r
 \r
        if (!(Endpoint_IsReadWriteAllowed()))\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r
 \r
        if (!(Endpoint_IsReadWriteAllowed()))\r

-       {\r
+       {       \r

                Endpoint_ClearIN();\r
                Endpoint_ClearIN();\r

-               Endpoint_WaitUntilReady();\r
+\r
+               uint8_t ErrorCode;\r
+\r
+               if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)\r
+                 return ErrorCode;\r

        }\r
 \r
        }\r
 \r

-       Endpoint_Write_Byte(Data);      \r
+       Endpoint_Write_Byte(Data);\r
+       return ENDPOINT_READYWAIT_NoError;\r
+}\r
+\r
+uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
+{\r
+       if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r
+         return ENDPOINT_RWSTREAM_DeviceDisconnected;\r
+\r
+       uint8_t ErrorCode;\r
+\r
+       Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r
+\r
+       if (!(Endpoint_BytesInEndpoint()))\r
+         return ENDPOINT_READYWAIT_NoError;\r
+       \r
+       bool BankFull = !(Endpoint_IsReadWriteAllowed());\r
+       \r
+       Endpoint_ClearIN();\r
+       \r
+       if (BankFull)\r
+       {\r
+               if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)\r
+                 return ErrorCode;\r
+\r
+               Endpoint_ClearIN();\r
+       }\r
+       \r
+       return ENDPOINT_READYWAIT_NoError;\r

 }\r
 \r
 uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
 {\r
 }\r
 \r
 uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
 {\r

+       if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r
+         return 0;\r
+\r

        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);\r
 \r

-       if (Endpoint_IsOUTReceived() && !(Endpoint_BytesInEndpoint()))\r
-         Endpoint_ClearOUT();\r
+       if (Endpoint_IsOUTReceived())\r
+       {\r
+               if (!(Endpoint_BytesInEndpoint()))\r
+                 Endpoint_ClearOUT();\r

 \r
 \r

-       return Endpoint_BytesInEndpoint();\r
+               return Endpoint_BytesInEndpoint();\r
+       }\r
+       else\r
+       {\r
+               return 0;\r
+       }\r

 }\r
 \r
 uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)\r
 {\r
 }\r
 \r
 uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)\r
 {\r

-       if (USB_DeviceState != DEVICE_STATE_Configured)\r
+       if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r

          return 0;\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);\r
          return 0;\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);\r


@@ -184,7 +220,7 @@ uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)
 \r
 void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
 {\r
 \r
 void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
 {\r

-       if (USB_DeviceState != DEVICE_STATE_Configured)\r
+       if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))\r

          return;\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.NotificationEndpointNumber);\r
          return;\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.NotificationEndpointNumber);\r


@@ -198,11 +234,50 @@ void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDC
                        .wLength       = sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),\r
                };\r
 \r
                        .wLength       = sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),\r
                };\r
 \r

-       Endpoint_Write_Stream_LE(&Notification, sizeof(Notification), NO_STREAM_CALLBACK);\r
+       Endpoint_Write_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK);\r

        Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,\r
                                 sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),\r
                                 NO_STREAM_CALLBACK);\r
        Endpoint_ClearIN();\r
 }\r
 \r
        Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,\r
                                 sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),\r
                                 NO_STREAM_CALLBACK);\r
        Endpoint_ClearIN();\r
 }\r
 \r

+void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream)\r
+{\r
+       *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar, _FDEV_SETUP_RW);\r
+       fdev_set_udata(Stream, CDCInterfaceInfo);\r
+}\r
+\r
+void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream)\r
+{\r
+       *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar_Blocking, _FDEV_SETUP_RW);\r
+       fdev_set_udata(Stream, CDCInterfaceInfo);\r
+}\r
+\r
+static int CDC_Device_putchar(char c, FILE* Stream)\r
+{\r
+       return CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;\r
+}\r
+\r
+static int CDC_Device_getchar(FILE* Stream)\r
+{\r
+       if (!(CDC_Device_BytesReceived((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))))\r
+         return _FDEV_EOF;\r
+\r
+       return CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));\r
+}\r
+\r
+static int CDC_Device_getchar_Blocking(FILE* Stream)\r
+{\r
+       while (!(CDC_Device_BytesReceived((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))))\r
+       {\r
+               if (USB_DeviceState == DEVICE_STATE_Unattached)\r
+                 return _FDEV_EOF;\r
+       \r
+               CDC_Device_USBTask((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));\r
+               USB_USBTask();\r
+       }\r
+\r
+       return CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));\r
+}\r
+\r

 #endif\r
 #endif\r