Added return values to the CDC and MIDI class driver transmit functions.

diff --git a/LUFA/Drivers/USB/Class/Device/CDC.c b/LUFA/Drivers/USB/Class/Device/CDC.c
index cbb9a85..003a6b3 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/CDC.c
+++ b/LUFA/Drivers/USB/Class/Device/CDC.c
@@ -121,46 +121,55 @@ void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)
        CDC_Device_Flush(CDCInterfaceInfo);\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
-         return;\r
+         return ENDPOINT_READYWAIT_NoError;\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
-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
-         return;\r
+         return ENDPOINT_READYWAIT_NoError;\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r
 \r
        if (!(Endpoint_IsReadWriteAllowed()))\r
        {\r
+               uint8_t ErrorCode;\r
+       \r
                Endpoint_ClearIN();\r
-               Endpoint_WaitUntilReady();\r
+\r
+               if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)\r
+                 return ErrorCode;\r
        }\r
 \r
-       Endpoint_Write_Byte(Data);      \r
+       Endpoint_Write_Byte(Data);\r
+       return ENDPOINT_READYWAIT_NoError;\r
 }\r
 \r
-void CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\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;\r
+         return ENDPOINT_READYWAIT_NoError;\r
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);\r
        \r
        if (Endpoint_BytesInEndpoint())\r
        {\r
+               uint8_t ErrorCode;\r
+\r
                Endpoint_ClearIN();\r
-               Endpoint_WaitUntilReady();\r
+               \r
+               if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)\r
+                 return ErrorCode;\r
        }\r
        \r
        Endpoint_ClearIN();\r
-       Endpoint_WaitUntilReady();      \r
+       return Endpoint_WaitUntilReady();\r
 }\r
 \r
 uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
@@ -175,7 +184,7 @@ uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterface
 \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
@@ -190,7 +199,7 @@ 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
-       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

diff --git a/LUFA/Drivers/USB/Class/Device/CDC.h b/LUFA/Drivers/USB/Class/Device/CDC.h
index a58bea2..99f8eb2 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/CDC.h
+++ b/LUFA/Drivers/USB/Class/Device/CDC.h
@@ -156,16 +156,20 @@
                         *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class configuration and state.\r
                         *  \param[in] Data  Pointer to the string to send to the host\r
                         *  \param[in] Length  Size in bytes of the string to send to the host\r
+                        *\r
+                        *  \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum\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
                        /** Sends a given byte to the attached USB host, if connected. If a host is not connected when the function is called, the\r
                         *  byte is discarded.\r
                         *\r
                         *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class configuration and state.\r
                         *  \param[in] Data  Byte of data to send to the host\r
+                        *\r
+                        *  \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum\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
                        /** Determines the number of bytes received by the CDC interface from the host, waiting to be read.\r
                         *\r
@@ -188,8 +192,10 @@
                        /** Flushes any data waiting to be sent, ensuring that the send buffer is cleared.\r
                         *\r
                         *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class configuration and state.\r
+                        *\r
+                        *  \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum\r
                         */\r
-                       void CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo);\r
+                       uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo);\r
                        \r
                        /** Sends a Serial Control Line State Change notification to the host. This should be called when the virtual serial\r
                         *  control lines (DCD, DSR, etc.) have changed states, or to give BREAK notfications to the host. Line states persist\r

diff --git a/LUFA/Drivers/USB/Class/Device/MIDI.c b/LUFA/Drivers/USB/Class/Device/MIDI.c
index 76583b1..79d9e74 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/MIDI.c
+++ b/LUFA/Drivers/USB/Class/Device/MIDI.c
@@ -70,18 +70,24 @@ void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
 \r
 }\r
 \r
-void MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
+uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
 {\r
        if (USB_DeviceState != DEVICE_STATE_Configured)\r
-         return;\r
+         return ENDPOINT_RWSTREAM_NoError;\r
        \r
        Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpointNumber);\r
 \r
        if (Endpoint_IsReadWriteAllowed());\r
        {\r
-               Endpoint_Write_Stream_LE(Event, sizeof(Event), NO_STREAM_CALLBACK);\r
+               uint8_t ErrorCode;\r
+\r
+               if ((ErrorCode = Endpoint_Write_Stream_LE(Event, sizeof(Event), NO_STREAM_CALLBACK)) != ENDPOINT_RWSTREAM_NoError)\r
+                 return ErrorCode;\r
+\r
                Endpoint_ClearIN();\r
        }\r
+       \r
+       return ENDPOINT_RWSTREAM_NoError;\r
 }\r
 \r
 bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r

diff --git a/LUFA/Drivers/USB/Class/Device/MIDI.h b/LUFA/Drivers/USB/Class/Device/MIDI.h
index c7e46ba..ce6778f 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/MIDI.h
+++ b/LUFA/Drivers/USB/Class/Device/MIDI.h
@@ -113,8 +113,10 @@
                         *\r
                         *  \param[in,out] MIDIInterfaceInfo  Pointer to a structure containing a MIDI Class configuration and state.\r
                         *  \param[in] Event  Pointer to a populated USB_MIDI_EventPacket_t structure containing the MIDI event to send\r
+                        *\r
+                        *  \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum                   \r
                         */\r
-                       void MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event);\r
+                       uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event);\r
 \r
                        /** Receives a MIDI event packet from the host.\r
                         *\r

diff --git a/LUFA/ManPages/ChangeLog.txt b/LUFA/ManPages/ChangeLog.txt
index 11c21f0..8952337 100644 (file)
--- a/LUFA/ManPages/ChangeLog.txt
+++ b/LUFA/ManPages/ChangeLog.txt
@@ -19,6 +19,7 @@
   *    HID interface within the device, not all HID interfaces\r
   *  - Added new CDC_Device_Flush() command to the device mode CDC Class driver\r
   *  - Added explicit attribute masks to the device mode demos' descriptors\r
+  *  - Added return values to the CDC and MIDI class driver transmit functions\r
   *\r
   *  <b>Fixed:</b>\r
   *  - Fixed possible lockup in the CDC device class driver, when the host sends data that is a multiple of the\r

diff --git a/LUFA/ManPages/FutureChanges.txt b/LUFA/ManPages/FutureChanges.txt
index 319e95d..daabcea 100644 (file)
--- a/LUFA/ManPages/FutureChanges.txt
+++ b/LUFA/ManPages/FutureChanges.txt
@@ -13,11 +13,6 @@
   *\r
   *  <b>Targeted for This Release:</b>\r
   *  - Host Mode Class Drivers\r
-  *     -# Make new host class drivers\r
-  *     -# Document new host class drivers\r
-  *     -# Convert Host mode demos to class drivers\r
-  *     -# Re-enable Host mode Class driver builds after completion\r
-  *     -# Update Host mode Class Driver demo .txt files\r
   *  - Add overviews of each of the officially supported boards to the manual\r
   *  - Add hub support to match Atmel's stack\r
   *\r