YX ZHANG / WIZnet_Library

This is WIZnet Ethernet Interface using Hardware TCP/IP chip, W5500, W5200 and W5100. One of them can be selected by enabling it in wiznet.h.

Fork of WIZnet_Library by WIZnet

Files at this revision

API Documentation at this revision

Revision 8:cb8808b47e69, committed 2015-05-31

Comitter:
Bongjun
Date:
Sun May 31 10:25:40 2015 +0000
Parent:
7:7c67a8922ec5
Child:
9:f390679a0468
Commit message:
fix some codes of reading Sn_RX_RSR, Sn_TX_FSR in W5100.cpp, W5200.cpp; added is_fin_received() in W5100, W5200 files

Changed in this revision

WIZnetInterface/WIZnet/W5100.cpp Show annotated file Show diff for this revision Revisions of this file
WIZnetInterface/WIZnet/W5100.h Show annotated file Show diff for this revision Revisions of this file
WIZnetInterface/WIZnet/W5200.cpp Show annotated file Show diff for this revision Revisions of this file
WIZnetInterface/WIZnet/W5200.h Show annotated file Show diff for this revision Revisions of this file 
--- a/WIZnetInterface/WIZnet/W5100.cpp	Sun May 31 10:06:41 2015 +0000
+++ b/WIZnetInterface/WIZnet/W5100.cpp	Sun May 31 10:25:40 2015 +0000
@@ -140,6 +140,18 @@
     return false;
 }
 
+
+bool WIZnet_Chip::is_fin_received(int socket)
+{
+    uint8_t tmpSn_SR;
+    tmpSn_SR = sreg<uint8_t>(socket, Sn_SR);
+    // packet sending is possible, when state is SOCK_CLOSE_WAIT.
+    if (tmpSn_SR == SOCK_CLOSE_WAIT) {
+        return true;
+    }
+    return false;
+}
+
 void WIZnet_Chip::reset()
 {
     reset_pin = 1;
@@ -202,7 +214,14 @@
     t.reset();
     t.start();
     while(1) {
-        int size = sreg<uint16_t>(socket, Sn_TX_FSR);
+        //int size = sreg<uint16_t>(socket, Sn_TX_FSR);
+        // during the reading Sn_TX_FSR, it has the possible change of this register.
+        // so read twice and get same value then use size information.
+        int size, size2;
+        do {
+            size = sreg<uint16_t>(socket, Sn_TX_FSR);
+            size2 = sreg<uint16_t>(socket, Sn_TX_FSR);
+        } while (size != size2);
         if (size > req_size) {
             return size;
         }

--- a/WIZnetInterface/WIZnet/W5100.h	Sun May 31 10:06:41 2015 +0000
+++ b/WIZnetInterface/WIZnet/W5100.h	Sun May 31 10:25:40 2015 +0000
@@ -145,6 +145,13 @@
     */
     bool is_connected(int socket);
 
+	/*
+    * Check if FIN received.
+    *
+    * @returns true if successful
+    */
+    bool is_fin_received(int socket);
+    
     /*
     * Close a tcp connection
     *

--- a/WIZnetInterface/WIZnet/W5200.cpp	Sun May 31 10:06:41 2015 +0000
+++ b/WIZnetInterface/WIZnet/W5200.cpp	Sun May 31 10:25:40 2015 +0000
@@ -102,6 +102,18 @@
     return true;
 }
 
+
+bool WIZnet_Chip::is_fin_received(int socket)
+{
+    uint8_t tmpSn_SR;
+    tmpSn_SR = sreg<uint8_t>(socket, Sn_SR);
+    // packet sending is possible, when state is SOCK_CLOSE_WAIT.
+    if (tmpSn_SR == SOCK_CLOSE_WAIT) {
+        return true;
+    }
+    return false;
+}
+
 bool WIZnet_Chip::gethostbyname(const char* host, uint32_t* ip)
 {
     uint32_t addr = str_to_ip(host);
@@ -171,7 +183,15 @@
     t.reset();
     t.start();
     while(1) {
-        int size = sreg<uint16_t>(socket, Sn_RX_RSR);
+        //int size = sreg<uint16_t>(socket, Sn_RX_RSR);
+        // during the reading Sn_RX_RXR, it has the possible change of this register.
+        // so read twice and get same value then use size information.
+        int size, size2;
+        do {
+            size = sreg<uint16_t>(socket, Sn_RX_RSR);
+            size2 = sreg<uint16_t>(socket, Sn_RX_RSR);
+        } while (size != size2);
+
         if (size > req_size) {
             return size;
         }
@@ -191,7 +211,15 @@
     t.reset();
     t.start();
     while(1) {
-        int size = sreg<uint16_t>(socket, Sn_TX_FSR);
+        //int size = sreg<uint16_t>(socket, Sn_TX_FSR);
+        // during the reading Sn_TX_FSR, it has the possible change of this register.
+        // so read twice and get same value then use size information.
+        int size, size2;
+        do {
+            size = sreg<uint16_t>(socket, Sn_TX_FSR);
+            size2 = sreg<uint16_t>(socket, Sn_TX_FSR);
+        } while (size != size2);
+        
         if (size > req_size) {
             return size;
         }

--- a/WIZnetInterface/WIZnet/W5200.h	Sun May 31 10:06:41 2015 +0000
+++ b/WIZnetInterface/WIZnet/W5200.h	Sun May 31 10:25:40 2015 +0000
@@ -147,6 +147,13 @@
     */
     bool is_connected(int socket);
 
+	/*
+    * Check if FIN received.
+    *
+    * @returns true if successful
+    */
+    bool is_fin_received(int socket);
+    
     /*
     * Close a tcp connection
     *