hi luis! adding the following patch lets us log the calling function names as well! which makes it much easier to make sense to the traces :) and i added ALQ=1 MMIOTRACE=1 and the objdump command to the Makefile as well to avoid forgetting that. cheers, bruno On Saturday 20 October 2007 04:55:18 Luis R. Rodriguez wrote: > We have initial support for AR5210s (still needs work), AR5211 and > AR5212. To add support for other hardware we'll need register dumps of > the HAL. Fortunately we have a way to do this. It's still hard to > figure out what we're supposed to do but at least we can get the some > idea of what to do this way. > > Below are instructions, you can find later instructions on the URL: > > http://kernel.org/pub/linux/kernel/people/mcgrof/madwifi-regdumps/README > > MadWifi HAL Register dumping > ---------------------------- > > You can use these instructions to get register dumps of HAL register > reads and writes. For this we build the alq and mmio trap modules and > make some use of them. > > This is based on patches and information from: > > http://madwifi.org/ticket/1380 > http://nouveau.freedesktop.org/wiki/MmioTrace > > -- Steps to take --- > > 0. Get MadWifi svn trunk, patches, pach up and build: > > svn export http://svn.madwifi.org/madwifi/trunk trunk > wget > http://kernel.org/pub/linux/kernel/people/mcgrof/madwifi-regdumps/alq.diff > wget > http://kernel.org/pub/linux/kernel/people/mcgrof/madwifi-regdumps/mmio.diff > wget > http://kernel.org/pub/linux/kernel/people/mcgrof/madwifi-regdumps/var.diff > > cd trunk/ > patch -p1 < ../alq.patch > patch -p1 < ../mmio.patch > patch -p1 < ../var.diff > > make ALQ=1 MMIOTRACE=1 > > 1. Alter the ath_pci.ko module with this command and then install modules: > > mv ath/ath_pci.ko ath/ath_pci.ko.old > objcopy --redefine-sym __ioremap=__ioremap_trace --redefine-sym \ > iounmap=iounmap_trace --redefine-sym \ > ioremap_nocache=ioremap_nocache_trace \ > ath/ath_pci.ko.old ath/ath_pci.ko > > sudo make install ALQ=1 MMIOTRACE=1 > > 2. Load mmio, alq, ath_hal > > sudo modprobe mmio > sudo modprobe alq > sudo modprobe ath_hal > > 3. Proc stuff: > > sudo su - > echo 2 > /proc/sys/dev/ath/hal/debug > echo 1 > /proc/sys/dev/ath/hal/alq > > 4. Load ath_pci > > modprobe ath_pci > > 5. Check reg dump file exists > > ls -l /tmp/ath_hal.log > > As you do things with the driver it should increase in size: > > root@pogo:~# wc -l /tmp/ath_hal.log > 14236 /tmp/ath_hal.log > > root@pogo:~# iwconfig wlan3 > wlan3 IEEE 802.11b ESSID:"" Nickname:"" > Mode:Managed Channel:0 Access Point: Not-Associated > Bit Rate:0 kb/s Tx-Power:0 dBm Sensitivity=1/1 > Retry:off RTS thr:off Fragment thr:off > Encryption key:off > Power Management:off > Link Quality=0/70 Signal level=-256 dBm Noise level=-256 dBm > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:0 Invalid misc:0 Missed beacon:0 > > root@pogo:~# wc -l /tmp/ath_hal.log > 14425 /tmp/ath_hal.log > > 6. Parse the regdump stuff, it looks nasty: > > perl -pe 's,\x00,,g' < /tmp/ath_hal.log > /tmp/ath_hal.log.txt > > In the end you should see lines like this: > > R:0x04004 = 0x00010000 - unknown > W:0x04004 = 0x00000000 - unknown > R:0x04010 = 0x00010014 - unknown > R:0x04004 = 0x00000000 - unknown > W:0x04004 = 0x00000000 - unknown > ... > > -- Sending dumps -- > > Please feel free to post dumps of hardware to ath5k-devel@xxxxxxxxxxxxxxx > > In doing so you should also provide ath_info dump: > > cd trunk/tools > make > lspci -v > # look for the line like: > # Memory at b8000000 (32-bit, non-prefetchable) [size=64K] > # for your card, put 0x in front of it as and fun ath_info with it: > sudo ./ath_info 0xb8000000 > > You should get something like: > > --- > > -==Device Information==- > MAC Version: 5212 (0x50) > MAC Revision: 5213A(0x59) > PHY Revision: 5112a(0x36) > -==EEPROM Information==- > EEPROM Version: 5.2 > EEPROM Size: 16K > Regulatory Domain: 0x10 > -==== Capabilities ====- > > | 802.11a Support: yes | > | 802.11b Support: yes | > | 802.11g Support: yes | > | RFKill Support: no | > | 32KHz Crystal: yes | > > ======================== > GPIO registers: CR 00000000 DO 00000000 DI 00000000 > > --- > > Other tips: > > If you are sending dumps please add stuff to the regdump which > indicates what you did to trigger a section of reg reads/writes. > > The dumps can be pretty big so please compress the file with bzip2. If > you can host the file somewhere and just send us the URL that may > help. > > Luis > _______________________________________________ > ath5k-devel mailing list > ath5k-devel@xxxxxxxxxxxxxxx > https://lists.ath5k.org/mailman/listinfo/ath5k-devel - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
