Messages in this thread | | | Date | Sat, 12 Jul 2008 21:20:07 -0300 | From | Rogério Brito <> | Subject | Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd) |
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Hi, Ivo, John, Linus and all the people at the mailing lists.
It seems that I'm flooded with bad luck. :-( I tried the modifications in the script attached (progressively uncommenting the commands, as you asked me), but it seems that I had the bad luck that nothing worked with kernel 2.6.26-rc5. I also tried with kernel 2.6.26-rc9, but again, nothing worked [*].
The only thing that gave a signal of life was when I imitated what you did and set the led register to the value that was present on the 2.6.25.x kernel. Then, a "iwconfig wlan0 ap any" gave me blinks on the "Act" led each time that I issued the command.
Attached also is the "meat" of the dmesg of my system. You may notice that after some time, I tried simply "ifdown wlan0" and "ifup wlan0" in my Debian system. These commands are responsible, as you should guess, for bringing an interface down and up.
I have not checked closely, but it seems that the modifications to the registers are lost when you bring the interface down---is that right? From the dmesg logs, this seems to be the case.
On Jul 08 2008, Ivo van Doorn wrote: > Hi, > > Could you try some of the following tests to control the registers: > I have grouped each test together, please don't do them all in one single shot, > since that will not help narrowing down the exact register which > breaks everything.
Again, I didn't do everything in one single shot. I tested your directions one at a time (first the 1st one, then, the 1st set and the 2nd set, then the 1st, 2nd, and 3rd set etc).
> > > 11 :0x0005 | 11 :0x000a MAC_CSR11: SIFS. > > > 12 :0x016c | 12 :0x013a MAC_CSR12: EIFS. > > echo 11 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset > echo 5 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value > echo 12 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset > echo 364 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value > > --- > > > > 33 :0xb11a | 33 :0xb162 TXRX_CSR1: TX configuration. > > echo 33 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset > echo 45338 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value > > --- > > > > 42 :0x000e | 42 :0x000a TXRX_CSR10: Auto responder control. > > > 43 :0x015f | 43 :0x0000 TXRX_CSR11: Auto responder basic rate. > > echo 42 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset > echo 14 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value > echo 43 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset > echo 351 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value > > --- > > > > 2 :0x1e | 2 :0x06 R2: TX antenna control > > echo 2 > /<debugfsroot>/<mac80211>/rt2500usb/register/bbp_offset > echo 30 > /<debugfsroot>/<mac80211>/rt2500usb/register/bbp_value
I attach to this message the commands that I used. As you can see, I tried some which seemed to me (as a layman) that would make some difference, but they did nothing. :-( My commands were based on some of the differences that you narrowed down in the last message.
Thank you very much, Rogério Brito.
[*] Actually, I got it once to work/authenticate with kernel 2.6.26-rc9, but I couldn't reproduce the steps to that. I tried loading all the registers this time with the script that I attach here, and I was so sad that it didn't work a second time (and a third, etc) that I was running a script that did:
"ifconfig wlan0 up; iwconfig wlan0 key s:xxx; iwconfig wlan0 essid default" && iwconfig wlan0
Not even once it showed that it was associated with the ap, but once in a while (not every time) that I run the line above the "act" led blinked and the messages generated on the dmesg were slightly different from one time to another (compressed, the log is quite small). -- Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8 http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org #!/bin/sh
echo 11 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 5 > /debug/ieee80211/phy0/rt2500usb/register/csr_value echo 12 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 364 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 33 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 45338 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 42 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 14 > /debug/ieee80211/phy0/rt2500usb/register/csr_value echo 43 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 351 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 2 > /debug/ieee80211/phy0/rt2500usb/register/bbp_offset echo 30 > /debug/ieee80211/phy0/rt2500usb/register/bbp_value
# My modifications echo 20 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 3 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 103 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 37216 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 51 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset echo 3 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 3 > /debug/ieee80211/phy0/rt2500usb/register/rf_offset echo 407313 > /debug/ieee80211/phy0/rt2500usb/register/rf_value phy0 -> rt2500usb_init_bbp: Debug - Start initialization from EEPROM... phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x11, value: 0x2c. phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x15, value: 0x18. phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x16, value: 0x18. phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x3e, value: 0x00. phy0 -> rt2500usb_init_bbp: Debug - ...End initialization from EEPROM. HW CONFIG: channel=1 freq=2412 phymode=2 phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 4, CWmax: 10, Aifs: 2. phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 4, CWmax: 10, Aifs: 2. phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 7 - CWmin: 5, CWmax: 10, Aifs: 2. HW CONFIG: channel=1 freq=2412 phymode=2 HW CONFIG: channel=2 freq=2417 phymode=2 HW CONFIG: channel=3 freq=2422 phymode=2 HW CONFIG: channel=4 freq=2427 phymode=2 HW CONFIG: channel=5 freq=2432 phymode=2 HW CONFIG: channel=6 freq=2437 phymode=2 HW CONFIG: channel=7 freq=2442 phymode=2 HW CONFIG: channel=8 freq=2447 phymode=2 HW CONFIG: channel=9 freq=2452 phymode=2 HW CONFIG: channel=10 freq=2457 phymode=2 HW CONFIG: channel=11 freq=2462 phymode=2 HW CONFIG: channel=1 freq=2412 phymode=2 HW CONFIG: channel=6 freq=2437 phymode=2 wlan0: Initial auth_alg=0 wlan0: authenticate with AP 00:13:46:51:10:65 wlan0: RX authentication from 00:13:46:51:10:65 (alg=0 transaction=2 status=0) wlan0: authenticated wlan0: associate with AP 00:13:46:51:10:65 wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=0 aid=1) wlan0: associated wlan0: switched to short barker preamble (BSSID=00:13:46:51:10:65) phy0: Added STA 00:13:46:51:10:65 [unhandled content-type:application/octet-stream] | |