Diff: snet.cpp

Revision:

2:397316d97354

Parent:

1:9c211ac06a12

Child:

3:59f3c806f127

diff -r 9c211ac06a12 -r 397316d97354 snet.cpp
--- a/snet.cpp	Thu Mar 05 00:18:25 2015 +0000
+++ b/snet.cpp	Tue Mar 31 22:27:25 2015 +0000
@@ -1,17 +1,51 @@
+/*
+    The MIT License (MIT)
+    
+    Copyright (c) 2015 Tom Soulanille
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+    
+    @file          snet.cpp
+    @purpose       simple networking
+    @version       0.1
+    @date          31 March 2015
+    @author        Tom Soulanille    
+*/
+
 #include "snet.h"
 
-//extern MODSERIAL pc;
-
-//extern void print_hex(uint8_t *p, int len);
-
-//volatile uint32_t enet_rx_cnt;
-//volatile int enet_rx_balance;
+#if 0
+// if not otherwise available, use this to print memory in hex
+void print_hex(const uint8_t *p, int len) {
+    while (len > 0) {
+        for (int i=0; i<16 && len-->0; i++) {
+            printf(" 0x%02x", *p++);
+        }
+        printf("\r\n");
+    }
+}
+#endif
 
 const uint8_t Snet::broadcast_mac[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 const uint8_t Snet::ipEtherType[] = { 0x08, 0x00 };
 const uint8_t Snet::arp_req_payload_prefix[] = { 0x0, 0x1, 0x8, 0x0, 0x6, 0x4, 0x0, 0x1 };
 
-
 Snet::Snet(): eth()
 {
     eth.address((char *) my_mac);
@@ -73,7 +107,8 @@
 };
 
 void Snet::got_unicast(uint8_t *buf, int len) {
-    if (memcmp(&buf[ENET_ETHERTYPE_O], ipEtherType, 2)) return; // IP packets only from this point
+    if (memcmp(&buf[ENET_ETHERTYPE_O], ipEtherType, 2)) return;
+    // IP packets only from this point
 //    printf("Unicast from: %02x:%02x:%02x:%02x:%02x:%02x %d\r\n",
 //            buf[6], buf[7], buf[8], buf[9], buf[10], buf[11], enet_rx_int_cnt);
     memcpy(correspondent_mac, &buf[ENET_SMAC_O], sizeof(correspondent_mac));