Diff: Ethernet.h

Revision:

0:a8fa94490a0a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Ethernet.h	Sat Sep 22 10:32:07 2012 +0000
@@ -0,0 +1,173 @@
+/* mbed Microcontroller Library - Ethernet
+ * Copyright (c) 2009-2011 ARM Limited. All rights reserved.
+ */ 
+ 
+#ifndef MBED_ETHERNET_H
+#define MBED_ETHERNET_H
+
+#include "device.h"
+
+#if DEVICE_ETHERNET
+
+#include "Base.h"
+
+namespace mbed {
+
+/* Class: Ethernet
+ *  An ethernet interface, to use with the ethernet pins.
+ *
+ * Example:
+ * > // Read destination and source from every ethernet packet
+ * >
+ * > #include "mbed.h"
+ * >
+ * > Ethernet eth;
+ * > 
+ * > int main() {
+ * >     char buf[0x600];
+ * >     
+ * >     while(1) {
+ * >         int size = eth.receive();
+ * >         if(size > 0) {
+ * >             eth.read(buf, size);
+ * >             printf("Destination:  %02X:%02X:%02X:%02X:%02X:%02X\n",
+ * >                     buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
+ * >             printf("Source: %02X:%02X:%02X:%02X:%02X:%02X\n",
+ * >                     buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
+ * >         }
+ * >         
+ * >         wait(1);
+ * >     }
+ * > }
+ *
+ */
+class Ethernet : public Base {
+
+public:
+    
+    /* Constructor: Ethernet
+     *  Initialise the ethernet interface.
+     */
+    Ethernet();
+
+    /* Destructor: Ethernet
+     *  Powers the hardware down.
+     */
+    virtual ~Ethernet();
+
+    enum Mode {
+        AutoNegotiate
+        , HalfDuplex10
+        , FullDuplex10
+        , HalfDuplex100
+        , FullDuplex100
+    };
+
+    /* Function: write
+     *  Writes into an outgoing ethernet packet.
+     *
+     *  It will append size bytes of data to the previously written bytes.
+     *  
+     *  Variables:
+     *   data - An array to write.
+     *   size - The size of data.
+     *
+     *  Returns:
+     *   The number of written bytes.
+     */
+    int write(const char *data, int size);
+
+    /* Function: send
+     *  Send an outgoing ethernet packet.
+     *
+     *  After filling in the data in an ethernet packet it must be send.
+     *  Send will provide a new packet to write to.
+     *
+     * Returns:
+     *  0 - If the sending was failed.
+     *  1 - If the package is successfully sent.
+     */
+    int send();
+
+    /* Function: receive
+     *  Recevies an arrived ethernet packet.
+     *
+     *  Receiving an ethernet packet will drop the last received ethernet packet 
+     *  and make a new ethernet packet ready to read.
+     *  If no ethernet packet is arrived it will return 0.
+     *
+     * Returns:
+     *  0 - If no ethernet packet is arrived.
+     *  The size of the arrived packet.
+     */
+    int receive();
+
+    /* Function: read
+     *  Read from an recevied ethernet packet.
+     *
+     *  After receive returnd a number bigger than 0it is
+     *  possible to read bytes from this packet.
+     *  Read will write up to size bytes into data.
+     *
+     *  It is possible to use read multible times. 
+     *  Each time read will start reading after the last read byte before.
+     *
+     * Returns:
+     *  The number of byte read.
+     */
+    int read(char *data, int size);
+    
+    /* Function: address
+     *  Gives the ethernet address of the mbed.
+     *
+     * Variables:
+     *  mac - Must be a pointer to a 6 byte char array to copy the ethernet address in.
+     */
+    void address(char *mac);
+
+    /* Function: link
+     *  Returns if an ethernet link is pressent or not. It takes a wile after Ethernet initializion to show up.
+     * 
+     * Returns:
+     *  0 - If no ethernet link is pressent.
+     *  1 - If an ethernet link is pressent.
+     *
+     * Example:
+     * > // Using the Ethernet link function
+     * > #include "mbed.h"
+     * >
+     * > Ethernet eth;
+     * >
+     * > int main() {
+     * >     wait(1); // Needed after startup.
+     * >     if(eth.link()) {
+     * >         printf("online\n");
+     * >     } else {
+     * >          printf("offline\n");
+     * >     }
+     * > }
+     *
+     */
+    int link();
+
+    /* Function: set_link
+     *  Sets the speed and duplex parameters of an ethernet link
+     *
+     *  Variables:
+     *   mode - the speed and duplex mode to set the link to:
+     *
+     * > AutoNegotiate      Auto negotiate speed and duplex
+     * > HalfDuplex10       10 Mbit, half duplex
+     * > FullDuplex10       10 Mbit, full duplex
+     * > HalfDuplex100      100 Mbit, half duplex
+     * > FullDuplex100      100 Mbit, full duplex
+     */
+    void set_link(Mode mode);
+
+};
+
+} // namespace mbed
+
+#endif
+
+#endif