+#ifdef RAW_ENABLE
+
+void raw_hid_send( uint8_t *data, uint8_t length )
+{
+ // TODO: implement variable size packet
+ if ( length != RAW_EPSIZE )
+ {
+ return;
+ }
+
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ {
+ return;
+ }
+
+ // TODO: decide if we allow calls to raw_hid_send() in the middle
+ // of other endpoint usage.
+ uint8_t ep = Endpoint_GetCurrentEndpoint();
+
+ Endpoint_SelectEndpoint(RAW_IN_EPNUM);
+
+ // Check to see if the host is ready to accept another packet
+ if (Endpoint_IsINReady())
+ {
+ // Write data
+ Endpoint_Write_Stream_LE(data, RAW_EPSIZE, NULL);
+ // Finalize the stream transfer to send the last packet
+ Endpoint_ClearIN();
+ }
+
+ Endpoint_SelectEndpoint(ep);
+}
+
+__attribute__ ((weak))
+void raw_hid_receive( uint8_t *data, uint8_t length )
+{
+ // Users should #include "raw_hid.h" in their own code
+ // and implement this function there. Leave this as weak linkage
+ // so users can opt to not handle data coming in.
+}
+
+static void raw_hid_task(void)
+{
+ // Create a temporary buffer to hold the read in data from the host
+ uint8_t data[RAW_EPSIZE];
+ bool data_read = false;
+
+ // Device must be connected and configured for the task to run
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return;
+
+ Endpoint_SelectEndpoint(RAW_OUT_EPNUM);
+
+ // Check to see if a packet has been sent from the host
+ if (Endpoint_IsOUTReceived())
+ {
+ // Check to see if the packet contains data
+ if (Endpoint_IsReadWriteAllowed())
+ {
+ /* Read data */
+ Endpoint_Read_Stream_LE(data, sizeof(data), NULL);
+ data_read = true;
+ }
+
+ // Finalize the stream transfer to receive the last packet
+ Endpoint_ClearOUT();
+
+ if ( data_read )
+ {
+ raw_hid_receive( data, sizeof(data) );
+ }
+ }
+}
+#endif