Date: Tue, 13 Mar 2012 20:00:25 +0800 (CST) From: saint <saint_bxg@126.com> To: freebsd-wireless@freebsd.org Subject: Freebsd9.0 TDMA: stuck beacon problem Message-ID: <4ef315ef.141dd.1360bee4368.Coremail.saint_bxg@126.com>
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Hi Adrian:
This is Michael.
I'm trying to implement TDMA connection with two Atheros cards(AR5416 and AR9285) working on freebsd 9.0-release.
After reading the handbook, I added the build option IEEE80211_SUPPORT_TDMA, and modified loader.conf as:
if_ath_load="YES"
if_ath_pci_load="YES"
I rebuilt and reinstalled the kernel, reboot ...
After that, the ath driver can be loaded and I could configure two cards as adhoc mode and connect each other successfully. :)
But, when I configured the card as tdma mode and set it as a master(tdmaslot 0), a few seconds later, the screen was full of:
"ath0: stuck beacon; resetting( bmiss count 4)"
config commands:
ifconfig wlan0 create wlandev ath0 wlanmode tdma
ifconfig wlan0 ssid freebsd-tdma tdmaslotlen 2500 tdmaslot 0
ifconfig wlan0 up (after this, "ath0: stuck beacon..." appears)
If I set the card as a slave( tdmaslot 1), no these output messages. :(
I tried to find the result from the code, it pointed to ath_hal_numtxpending(). (That means there are still frames pending in the QCU(AR5416)). But I didn't know why.
I searched it on the internet, many people experienced it, but none of them was the same case as mine.
Then I reinstalled the OS with freebsd8.2-release. There was no "ath0: stuck beacon..." :)
But under freebsd8.2, I could not connect two cards as tdma mode either(no beacons send out). Oh~~ :(:(
Card not support? OS not support? TDMA not support in 9.0 release?
Could you give me some advise, thanks a lot!
Best Wishes
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