[BSP][qemu-a9] auto generate mac address from host

bsp/qemu-vexpress-a9/.gitignore

@@ -41,3 +41,4 @@ settings/
 *.uvguix*
 cconfig.h
 .settings
+drivers/automac.h

bsp/qemu-vexpress-a9/drivers/automac.h

+
+#ifndef __MAC_AUTO_GENERATE_H__
+#define __MAC_AUTO_GENERATE_H__
+
+/* Automatically generated file; DO NOT EDIT. */
+/* mac configure file for RT-Thread qemu */
+
+#define AUTOMAC0  0x52
+#define AUTOMAC1  0x54
+#define AUTOMAC2  0x00
+#define AUTOMAC3  0x28
+#define AUTOMAC4  0xae
+#define AUTOMAC5  0xeb
+
+#endif

bsp/qemu-vexpress-a9/drivers/drv_smc911x.c

@@ -2,6 +2,7 @@
 #include <rtthread.h>
 #include <netif/ethernetif.h>
 #include <lwipopts.h>
+#include <automac.h>
 
 #define MAX_ADDR_LEN                6
 #define SMC911X_EMAC_DEVICE(eth)    (struct eth_device_smc911x*)(eth)
@@ -512,12 +513,12 @@ int smc911x_emac_hw_init(void)
     smc911x_reg_write(&_emac, INT_CFG, INT_CFG_IRQ_POL | INT_CFG_IRQ_TYPE);
 
     /* test MAC address */
-    _emac.enetaddr[0] = 0x52;
-    _emac.enetaddr[1] = 0x54;
-    _emac.enetaddr[2] = 0x00;
-    _emac.enetaddr[3] = 0x11;
-    _emac.enetaddr[4] = 0x22;
-    _emac.enetaddr[5] = 0x33;
+    _emac.enetaddr[0] = AUTOMAC0;
+    _emac.enetaddr[1] = AUTOMAC1;
+    _emac.enetaddr[2] = AUTOMAC2;
+    _emac.enetaddr[3] = AUTOMAC3;
+    _emac.enetaddr[4] = AUTOMAC4;
+    _emac.enetaddr[5] = AUTOMAC5;
 
 #ifdef RT_USING_DEVICE_OPS
     _emac.parent.parent.ops        = &smc911x_emac_ops;

bsp/qemu-vexpress-a9/rtconfig.py

 import os
 
+import uuid
+def get_mac_address(): 
+    mac=uuid.UUID(int = uuid.getnode()).hex[-12:] 
+    return "#define AUTOMAC".join([str(e/2 + 1) + '  0x' + mac[e:e+2] + '\n' for e in range(5,11,2)])
+
+header = '''
+#ifndef __MAC_AUTO_GENERATE_H__
+#define __MAC_AUTO_GENERATE_H__
+
+/* Automatically generated file; DO NOT EDIT. */
+/* mac configure file for RT-Thread qemu */
+
+#define AUTOMAC0  0x52
+#define AUTOMAC1  0x54
+#define AUTOMAC2  0x00
+#define AUTOMAC'''
+
+end = '''
+#endif
+'''
+
+with open('drivers/automac.h', 'w') as f:
+    f.write(header + get_mac_address() + end)
+
 # toolchains options
 ARCH='arm'
 CPU='cortex-a'