Fix "grep: Version.h: No such file or directory" error when including the core LUFA...

[pub/USBasp.git] / Demos / Device / ClassDriver / RNDISEthernet / Lib / Ethernet.c

diff --git a/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c b/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c
index a3a42e2..e8c2595 100644 (file)
--- a/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c
+++ b/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c
@@ -1,24 +1,24 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
-              
+     Copyright (C) Dean Camera, 2013.
+
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
-  Permission to use, copy, modify, distribute, and sell this 
+  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 
+  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 
+  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
+  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
@@ -31,10 +31,10 @@
 /** \file
  *
  *  Ethernet frame packet handling routines. This protocol handles the processing of raw Ethernet
- *  frames sent and received, deferring the processing of subpacket protocols to the appropriate
+ *  frames sent and received, deferring the processing of sub-packet protocols to the appropriate
  *  protocol handlers, such as DHCP or ARP.
  */
- 
+
 #include "Ethernet.h"
 
 /** Constant for convenience when checking against or setting a MAC address to the virtual server MAC address. */
@@ -56,16 +56,17 @@ const IP_Address_t  ClientIPAddress     = {CLIENT_IP_ADDRESS};
 /** Processes an incoming Ethernet frame, and writes the appropriate response to the output Ethernet
  *  frame buffer if the sub protocol handlers create a valid response.
  */
-void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* FrameIN, Ethernet_Frame_Info_t* FrameOUT)
+void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* const FrameIN,
+                            Ethernet_Frame_Info_t* const FrameOUT)
 {
-       DecodeEthernetFrameHeader(FrameIN);
+       DecodeEthernetFrameHeader(FrameIN->FrameData);
 
        /* Cast the incoming Ethernet frame to the Ethernet header type */
        Ethernet_Frame_Header_t* FrameINHeader  = (Ethernet_Frame_Header_t*)&FrameIN->FrameData;
        Ethernet_Frame_Header_t* FrameOUTHeader = (Ethernet_Frame_Header_t*)&FrameOUT->FrameData;
-       
+
        int16_t                  RetSize        = NO_RESPONSE;
-       
+
        /* Ensure frame is addressed to either all (broadcast) or the virtual webserver, and is a type II frame */
        if ((MAC_COMPARE(&FrameINHeader->Destination, &ServerMACAddress) ||
             MAC_COMPARE(&FrameINHeader->Destination, &BroadcastMACAddress)) &&
@@ -77,14 +78,14 @@ void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* FrameIN, Ethernet_Frame_Info_
                        case ETHERTYPE_ARP:
                                RetSize = ARP_ProcessARPPacket(&FrameIN->FrameData[sizeof(Ethernet_Frame_Header_t)],
                                                               &FrameOUT->FrameData[sizeof(Ethernet_Frame_Header_t)]);
-                               break;          
+                               break;
                        case ETHERTYPE_IPV4:
                                RetSize = IP_ProcessIPPacket(FrameIN,
                                                             &FrameIN->FrameData[sizeof(Ethernet_Frame_Header_t)],
                                                             &FrameOUT->FrameData[sizeof(Ethernet_Frame_Header_t)]);
                                break;
                }
-               
+
                /* Protocol processing routine has filled a response, complete the ethernet frame header */
                if (RetSize > 0)
                {
@@ -92,10 +93,9 @@ void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* FrameIN, Ethernet_Frame_Info_
                        FrameOUTHeader->Source          = ServerMACAddress;
                        FrameOUTHeader->Destination     = FrameINHeader->Source;
                        FrameOUTHeader->EtherType       = FrameINHeader->EtherType;
-                       
+
                        /* Set the response length in the buffer and indicate that a response is ready to be sent */
                        FrameOUT->FrameLength           = (sizeof(Ethernet_Frame_Header_t) + RetSize);
-                       FrameOUT->FrameInBuffer         = true;
                }
        }
 
@@ -103,7 +103,7 @@ void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* FrameIN, Ethernet_Frame_Info_
        if (RetSize != NO_PROCESS)
        {
                /* Clear the frame buffer */
-               FrameIN->FrameInBuffer = false;
+               FrameIN->FrameLength = 0;
        }
 }
 
@@ -115,16 +115,18 @@ void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* FrameIN, Ethernet_Frame_Info_
  *
  *  \return A 16-bit Ethernet checksum value
  */
-uint16_t Ethernet_Checksum16(void* Data, uint16_t Bytes)
+uint16_t Ethernet_Checksum16(void* Data,
+                             uint16_t Bytes)
 {
        uint16_t* Words    = (uint16_t*)Data;
        uint32_t  Checksum = 0;
 
-       for (uint8_t CurrWord = 0; CurrWord < (Bytes >> 1); CurrWord++)
+       for (uint16_t CurrWord = 0; CurrWord < (Bytes >> 1); CurrWord++)
          Checksum += Words[CurrWord];
-         
+
        while (Checksum & 0xFFFF0000)
          Checksum = ((Checksum & 0xFFFF) + (Checksum >> 16));
-       
+
        return ~Checksum;
 }
+