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1. Files for test:
a. 88W8864.bin,88W8897.bin: F/W binary. Please put this file under directory '/lib/firmware/mwlwifi'.
b. mwlwifi.ko: 88W8864/88W8897 mac80211 driver kernel module.
c. hostapd.conf: configuration file used to configure hostapd.
d. wpa_supplicant.conf: configuration file used to configure wpa_supplicant.
e. openwrt-mvebu-armada-xp-mamba-squashfs-factory.img: OpenWRT download image (built with kernel cfg80211/mac80211, iw, hostapd and wpa_supplicant).
2. Bring up driver:
a. iw reg set US
--> set regulatory domain (Note: cfg80211 will disable DFS channels).
b. insmod mwlwifi.ko
--> After module is inserted, physical interfaces phy0 and phy1 and network device wlan0 and wlan1
will be created. You can issue "iw dev" to check them.
c. hostapd -B ./hostapd.conf
--> There are few sample configuration files under this directory. Please use them to do test.
d. brctl addif br-lan wlan1
--> Make sure wlan1 is the interface specified in hostapd.conf.
Note: you can run script file 'setup.sh' instead of issuing these commands one by one.
3. Change configuration:
After hostapd and driver is running, the way to change configuration:
1. Change configuration file hostapd.conf
2. Run "killall hostapd" then "hostapd -B ./hostapd.conf" to run hostapd with new configuration.
4. The way to change channel via hostpad.conf for 80 MHz:
a. You must check regulatory domain first to see if the channel you setting is allowable for 80 MHz.
You can use ��iw reg get�� and ��iw reg set�� to get and set regulatory domain. For script file ��setup.sh��,
it sets the regulatory domain to US.
If you use ��iw reg get�� to check setting regulatory domain:
country US: DFS-UNSET
(2402 - 2472 @ 40), (30, 0)
(5170 - 5250 @ 80), (17, 0)
(5250 - 5330 @ 80), (23, 0)
(5735 - 5835 @ 80), (30, 0)
(57240 - 63720 @ 2160), (40, 0)
It allows you to use three ranges to do 80 MHz operation (36 ~ 48), (52 ~ 64) and (149 ~ 161).
If you use ��iw reg set TW�� to set regulatory domain to TW:
country TW: DFS-UNSET
(2402 - 2472 @ 40), (30, 0)
(5270 - 5330 @ 40), (17, 0)
(5490 - 5590 @ 80), (30, 0)
(5650 - 5710 @ 40), (30, 0)
(5735 - 5835 @ 80), (30, 0)
It allows you to use two ranges to do 80 MHz operation (100 ~ 116) and (149 ~ 161).
b. After regulatory is set and make sure the channel range you want to use is allowable by the
setting regulatory, you can modify hostapd.conf to run 80 Mhz as:
channel=36 -> decide active primary channel.
ht_capab=[LDPC][HT40+][SHORT-GI-20][SHORT-GI-40] -> decide primary 40 MHz.
vht_oper_centr_freq_seg0_idx=42 -> center channel for this 80 MHz.
Test sample:
a. 149 to 161:
channel=149
ht_capab=[LDPC][HT40+][SHORT-GI-20][SHORT-GI-40]
vht_oper_centr_freq_seg0_idx=155
channel=153
ht_capab=[LDPC][HT40-][SHORT-GI-20][SHORT-GI-40]
vht_oper_centr_freq_seg0_idx=155
b. 100 to 112:
Use ��iw reg set TW�� to change regulatory domain to allow to use this range for 80 Mhz.
channel=100
ht_capab=[LDPC][HT40+][SHORT-GI-20][SHORT-GI-40]
vht_oper_centr_freq_seg0_idx=106
channel=104
ht_capab=[LDPC][HT40-][SHORT-GI-20][SHORT-GI-40]
vht_oper_centr_freq_seg0_idx=106
5. Station mode:
a. Use iw utlity to set correct regulatory domain.
b. Make sure dirver is loaded.
c. wpa_supplicant -B -D nl80211 -i wlan1 -c wpa_supplicant.conf
--> There are few sample configuration files under this directory. Please use them to do test.
d. There are two ways to change configuration for wpa_supplicant:
* Kill and rerun
killall wpa_supplicant
<Modify configuration file for new setting>
wpa_supplicant -B -D nl80211 -i wlan1 -c wpa_supplicant.conf
* Reload configuration file
<Modify configuration file for new setting>
kill -1 <PID of wpa_supplicant>
6. Debug mode:
a. hostapd:
hostapd -d[dd] ./hostapd.conf
b. wpa_supplicant:
wpa_supplicant -ddK -D nl80211 -i wlan1 -c wpa_supplicant.conf
7. Add/Delete interface via iw:
iw dev <devname> del
iw dev <devname> interface add <name> type <type>
You can omit the 'phy' or 'dev' if the identification is unique,
e.g. "iw wlan0 info" or "iw phy0 info". (Don't when scripting.)
Example:
root@OpenWrt:/test# iw dev
phy#1
Interface wlan1
ifindex 6
wdev 0x100000001
addr 00:25:9c:13:01:9a
type managed
phy#0
Interface wlan0
ifindex 8
wdev 0x3
addr 00:25:9c:13:01:99
type AP
root@OpenWrt:/test# iw wlan0 del
root@OpenWrt:/test# iw dev
phy#1
Interface wlan1
ifindex 6
wdev 0x100000001
addr 00:25:9c:13:01:9a
type managed
root@OpenWrt:/test# iw phy0 interface add wlan0 type managed
root@OpenWrt:/test# iw dev
phy#1
Interface wlan1
ifindex 6
wdev 0x100000001
addr 00:25:9c:13:01:9a
type managed
phy#0
Interface wlan0
ifindex 9
wdev 0x4
addr 00:25:9c:13:01:99
type managed
root@OpenWrt:/test#
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