有玩过wifi模块的没 - 软件编程/OS - 电子工程师俱乐部

2dmin

There are some steps to make the SDIO WIFI module work.
1.configure the kernel
a.select Network stack
Networking--->
   

Networking support
   Wireless--->
       <*> Improved wireless configuration API
        

nl80211 new netlink interface support
        -*- Wireless extensions
       <*> Generic IEEE 802.11 Networking Stack (mac80211)
      

Enable mac80211 mesh networking (pre-802.11s) support
b.select Blackfin SDH driver
Device Drivers--->
    <*> MMC/SD card support--->
       *** MMC/SD Card Drivers ***
       <*> MMC block device driver
      

Use bounce buffer for simple hosts
       *** MMC/SD Host Controller Drivers ***
        <*> Blackfin Secure Digital Host support
        

Blackfin EZkit Rev 1.3 Missing SDH_CMD Pull Up Resistor Workaround
c.select libertas driver
Device Drivers--->
   

Network device support--->
       Wireless LAN--->  
           

Wireless LAN (IEEE 802.11)
           <M> Marvell 8xxx Libertas WLAN driver support
           <M> Marvell Libertas 8385 and 8686 SDIO 802.11b/g cards
           

Enable full debugging output in the Libertas module.
            
2.patch the kernel
cd uclinux-dist/linux-2.6.x
...uclinux-dist/linux-2.6.x$ patch -p0< sdio_wifi.patch

3.copy firmwares and hotplug script to romfs
cd uclinux-dist
.../uclinux-dist$mkdir romfs/lib/firmware
.../uclinux-dist$cp sd8686.bin romfs/lib/firmware
.../uclinux-dist$cp sd8686_helper.bin romfs/lib/firmware
.../uclinux-dist$cp .../hotplug /romfs/sbin/
.../uclinux-dist$cd /romfs/sbin/;chmod +x hotplug

4.install libertas module
After doing above job,then compile the source and download the image to BF548-EZKIT board
SDIO card should be showed after the image is downloaded to the board.
mmc0: new SDIO card at address 0001

root:/> echo /sbin/hotplug > /proc/sys/kernel/hotplug
root:/> modprobe libertas                        
root:/> modprobe libertas_sdio helper_name=sd8686_helper.bin fw_name=sd8686.bin
libertas_sdio: Libertas SDIO driver
libertas_sdio: Copyright Pierre Ossman
firmware: requesting sd8686_helper.bin
firmware: requesting sd8686.bin
libertas: 00:13:e0:a1:69:92, fw 9.70.3p24, cap 0x00000303
libertas: unidentified region code; using the default (USA)
libertas: PREP_CMD: command 0x0022 failed: 2
libertas: PREP_CMD: command 0x00a3 failed: 2
libertas: PREP_CMD: command 0x00a3 failed: 2
libertas: eth1: Marvell WLAN 802.11 adapter



Following is my steps to connect this wifi module to my AP
root:/> iwconfig eth1
Warning: Driver for device eth1 has been compiled with version 22
of Wireless Extension, while this program supports up to version 17.
Some things may be broken...

g eth1 192.168.1.101 up
route add default gw 192.168.1.1eth1  IEEE 802.11b/gESSID:""
    Mode:ManagedFrequency:2.412 GHzAccess Point: 00:00:00:00:00:00
    Bit Rate:0 kb/s Tx-Power=18 dBm
    Retry limit:8 RTS thr=2347 B Fragment thr=2346 B
    Encryption keyff
    Power Managementff
    Link Quality:0Signal level:0Noise level:0
    Rx invalid nwid:0Rx invalid crypt:0Rx invalid frag:0
    Tx excessive retries:0Invalid misc:0 Missed beacon:0

root:/> ifconfig eth1 up
root:/> iwlist eth1 scan
Warning: Driver for device eth1 has been compiled with version 22
of Wireless Extension, while this program supports up to version 17.
Some things may be broken...

eth1  Scan completed :
    Cell 01 - Address: 00:19:A9:FD:2B:01
      ESSID:"ADICHINA"
      Mode:Managed
      Frequency:2.412 GHz (Channel 1)
      Quality=43/100Signal level=-88 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 02 - Address: 00:1C:F9:C02:E0
      ESSID:"ADIWLAN"
      Mode:Managed
      Frequency:2.412 GHz (Channel 1)
      Quality=89/100Signal level=-61 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 03 - Address: 00:1C:F9:C02:E1
      ESSID:"ADICHINA"
      Mode:Managed
      Frequency:2.412 GHz (Channel 1)
      Quality=89/100Signal level=-61 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 04 - Address: 00:19:A9:FD:2B:00
      ESSID:"ADIWLAN"
      Mode:Managed
      Frequency:2.412 GHz (Channel 1)
      Quality=43/100Signal level=-88 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 05 - Address: 00:1A:704:94:C7
      ESSID:"linksys"
      Mode:Managed
      Frequency:2.437 GHz (Channel 6)
      Quality=98/100Signal level=-31 dBmNoise level=-96 dBm
      Encryption keyff
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:54 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:48 Mb/s
    Cell 06 - Address: 00:1C:F9:C0B:E0
      ESSID:"ADIWLAN"
      Mode:Managed
      Frequency:2.437 GHz (Channel 6)
      Quality=91/100Signal level=-59 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 07 - Address: 00:1C:F9:C0B:E1
      ESSID:"ADICHINA"
      Mode:Managed
      Frequency:2.437 GHz (Channel 6)
      Quality=91/100Signal level=-59 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 08 - Address: 00:1C:F9:C05:A0
      ESSID:"ADIWLAN"
      Mode:Managed
      Frequency:2.437 GHz (Channel 6)
      Quality=46/100Signal level=-87 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 09 - Address: 00:1C:F9:C05:A1
      ESSID:"ADICHINA"
      Mode:Managed
      Frequency:2.437 GHz (Channel 6)
      Quality=48/100Signal level=-86 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 10 - Address: 00:0F:E2:90:15:50
      ESSID:"ChinaNet"
      Mode:Managed
      Frequency:2.437 GHz (Channel 6)
      Quality=50/100Signal level=-85 dBmNoise level=-96 dBm
      Encryption keyff
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
    Cell 11 - Address: 02D:B2:FA8:E5
      ESSID:"hpsetup"
      Mode:Ad-Hoc
      Frequency:2.457 GHz (Channel 10)
      Quality=68/100Signal level=-76 dBmNoise level=-96 dBm
      Encryption keyff
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:11 Mb/s
    Cell 12 - Address: 00:1C:F9:C0:73:00
      ESSID:"ADIWLAN"
      Mode:Managed
      Frequency:2.462 GHz (Channel 11)
      Quality=89/100Signal level=-61 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 13 - Address: 00:1C:F9:C0:73:01
      ESSID:"ADICHINA"
      Mode:Managed
      Frequency:2.462 GHz (Channel 11)
      Quality=89/100Signal level=-61 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 14 - Address: 00:19:A9:FD:2F:01
      ESSID:"ADICHINA"
      Mode:Managed
      Frequency:2.462 GHz (Channel 11)
      Quality=57/100Signal level=-82 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)
    Cell 15 - Address: 00:50:18:1F:81:42
      ESSID:"Lilly"
      Mode:Managed
      Frequency:2.462 GHz (Channel 11)
      Quality=43/100Signal level=-88 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:11 Mb/s
    Cell 16 - Address: 00:19:A9:FD:2F:00
      ESSID:"ADIWLAN"
      Mode:Managed
      Frequency:2.462 GHz (Channel 11)
      Quality=54/100Signal level=-83 dBmNoise level=-96 dBm
      Encryption keyn
      Bit Rate:1 Mb/s
      Bit Rate:2 Mb/s
      Bit Rate:5.5 Mb/s
      Bit Rate:6 Mb/s
      Bit Rate:9 Mb/s
      Bit Rate:11 Mb/s
      Bit Rate:12 Mb/s
      Bit Rate:18 Mb/s
      Bit Rate:24 Mb/s
      Bit Rate:36 Mb/s
      Bit Rate:48 Mb/s
      Bit Rate:54 Mb/s
      (Unknown Wireless Token 0x8C05)

root:/> iwconfig eth1 essid linksys
root:/> ifconfig eth1 192.168.1.101 up
root:/> route add default gw 192.168.1.1
root:/> ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: seq=0 ttl=64 time=24.000 ms
64 bytes from 192.168.1.1: seq=1 ttl=64 time=12.000 ms
64 bytes from 192.168.1.1: seq=2 ttl=64 time=12.000 ms
64 bytes from 192.168.1.1: seq=3 ttl=64 time=16.000 ms
64 bytes from 192.168.1.1: seq=4 ttl=64 time=12.000 ms
64 bytes from 192.168.1.1: seq=5 ttl=64 time=12.000 ms