1、在/etc/config/wireless文件添加多个WIFI网卡的方法。
2、修改WIFI驱动，在src/embedded/ap/ap.c文件里面，从系统文件信息来修改ra1网卡的MAC内容，添加红色部分源代码。
RTMP_IO_WRITE32(pAd, RMAC_RMACDR, Value);
if (idx > 0)
{
struct file *file;
file = filp_open("/etc/mac.bin", O_RDONLY, 0);
if (IS_ERR(file))
{
/* MT7603, bit1 in byte0 shall always be b'1 for Multiple BSSID */
wdev->if_addr0 |= 0x2;
switch (MacByte) {
case 0x1: /* choose bit23:20*/
wdev->if_addr2 = wdev->if_addr2 & MacMask;//clear high 4 bits,
wdev->if_addr2 = (wdev->if_addr2 | (idx << 4));
break;
case 0x2: /* choose bit31:28*/
wdev->if_addr3 = wdev->if_addr3 & MacMask;//clear high 4 bits,
wdev->if_addr3 = (wdev->if_addr3 | (idx << 4));
break;
case 0x3: /* choose bit39:36*/
wdev->if_addr4 = wdev->if_addr4 & MacMask;//clear high 4 bits,
wdev->if_addr4 = (wdev->if_addr4 | (idx << 4));
break;
case 0x4: /* choose bit 47:44*/
wdev->if_addr5 = wdev->if_addr5 & MacMask;//clear high 4 bits,
wdev->if_addr5 = (wdev->if_addr5 | (idx << 4));
break;
default: /* choose bit15:12*/
wdev->if_addr1 = wdev->if_addr1 & MacMask;//clear high 4 bits,
wdev->if_addr1 = (wdev->if_addr1 | (idx << 4));
break;
}
}
else
{
unsigned char buf8={0};
if (kernel_read(file, 0, buf, 8) > 0)
{
wdev->if_addr0 =buf0 ;
wdev->if_addr1 =buf1;
wdev->if_addr2 =buf2;
wdev->if_addr3 =buf3;
wdev->if_addr4 =buf4 ;
wdev->if_addr5 =buf5;
printk("%d.mac-addr=%x:%x:%x:%x:%x:%x\n",idx,buf0,buf1,buf2,buf3,buf4,buf5);
}
}
}
}
3、开发应用程序，用于写MAC信息到文件里面。
libra@SVN:~/openwrt_mtk_4G/ra1_MAC$ cat Write_MAC.c
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <netdb.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#define MAC_ADDR_DATA "/etc/mac.bin"
int main()
{
unsigned char mac_addr8={0};
FILE *outfile=NULL;
int rc=0;
printf("Please enter the MAC data(0x20 0x15 0x12 0x07 0x00 0x00):\n");
scanf("%x%x%x%x%x%x",&mac_addr0,&mac_addr1,&mac_addr2,&mac_addr3,&mac_addr4,&mac_addr5);
outfile = fopen(MAC_ADDR_DATA, "wb" );
if( outfile == NULL)
{
printf("fopen %s, %s\n",MAC_ADDR_DATA,"not exit/n");
return -1;
}
fseek(outfile,0x0,SEEK_SET);
rc=fwrite(mac_addr, 1, 6, outfile );
fclose(outfile);
printf("The starting position of MAC is:%x:%x:%x:%x:%x:%x\n",mac_addr0,mac_addr1,mac_addr2,mac_addr3,mac_addr4,mac_addr5);
return rc;
}
libra@SVN:~/openwrt_mtk_4G/ra1_MAC cat make.sh
rm -rf Write_MAC
/home/libra/openwrt_mtk_4G/openwrt-sdk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.8-linaro_uClibc-0.9.33.2/bin/mipsel-openwrt-linux-gcc Write_MAC.c -o Write_MAC
libra@SVN:\~/openwrt_mtk_4G/ra1_MAC