On Tuesday 31 March 2009, Nick Kossifidis wrote: > 2009/3/31 Fabio Rossi <ross...@inwind.it>: > > On Tuesday 31 March 2009, Nick Kossifidis wrote: > >> > 2009/3/30 Fabio Rossi <ross...@inwind.it>: > >> > I have discovered the problem. Inside ath5k_hx_txpower() it's called > >> > ath5k_setup_channel_powertable() where the gain curves of frequency > >> > piers are scanned (if I have understood correctly) to extract the data > >> > for the calibration of the current channel. > >> > > >> > In particular, for the 5180MHz channel (the first of the A band), the > >> > function ath5k_get_linear_pcdac_min() is called with some critical > >> > data which generate an endless while loop. > >> > > >> > Here are the bad numbers passed to ath5k_get_linear_pcdac_min(): > >> > * pwrL[0] = 4 > >> > * pwrL[1] = 4 > >> > * stepL[0] = 20 > >> > * stepL[1] = 35 > >> > and with this configuration the variable 'tmp' is never decremented > >> > inside the first while loop. > >> > > >> > I suppose the data comes from the EEPROM. Is there an easy way to read > >> > the contents of the EEPROM regarding the calibration data for all the > >> > channels? > >> > > >> > Fabio > >> > >> Nice catch ;-) > >> > >> It's weird that your EEPROM contains a value twice, both pwrL[0] and > >> pwrL[1] are 4 so interpolation always returns 4 and tmp is always > 1 > >> so you have an endless loop. This is not what we expect to have on > >> EEPROM (we are supposed to have a monotonicaly increasing curve and in > >> your case it should be almost linear). Anyway since we have such cards > >> we just need to put a check there and where pwrL[0] == pwrL[1], we set > >> tmp = stepL[0] or if pwrR[0] == pwrR[1], we set tmp = stepR[0]. Try > >> this out and see how it goes... > > > > Here is the full dump of the power levels inside my board EEPROM: > > > > channel freq 2412, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-119, pwrR[1]=-96, > > stepR[0]=20, stepR[1]=35 channel freq 2417, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2422, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2427, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2432, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2437, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2442, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2447, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2452, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2457, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2462, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2467, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2472, > > ath5k_get_linear_pcdac_min pwrL[0]=-119, pwrL[1]=-96, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 2484, > > ath5k_get_linear_pcdac_min pwrL[0]=-106, pwrL[1]=-58, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=-106, pwrR[1]=-58, > > stepR[0]=20, stepR[1]=35 channel freq 5180, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5185, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5190, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5195, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5200, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5205, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5210, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5215, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5220, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5225, > > ath5k_get_linear_pcdac_min pwrL[0]=4, pwrL[1]=4, stepL[0]=20, stepL[1]=35 > > ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, stepR[0]=20, > > stepR[1]=35 channel freq 5230, > > ath5k_get_linear_pcdac_min pwrL[0]=13, pwrL[1]=13, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=13, pwrR[1]=13, > > stepR[0]=20, stepR[1]=35 channel freq 5235, > > ath5k_get_linear_pcdac_min pwrL[0]=13, pwrL[1]=13, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=8, pwrR[1]=9, stepR[0]=20, > > stepR[1]=35 channel freq 5240, > > ath5k_get_linear_pcdac_min pwrL[0]=13, pwrL[1]=13, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=8, pwrR[1]=9, stepR[0]=20, > > stepR[1]=35 channel freq 5745, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5750, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5755, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5760, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5765, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5770, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5775, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5780, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5785, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5790, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5795, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5800, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5805, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5810, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5815, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5820, > > ath5k_get_linear_pcdac_min pwrL[0]=8, pwrL[1]=26, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 channel freq 5825, > > ath5k_get_linear_pcdac_min pwrL[0]=11, pwrL[1]=28, stepL[0]=20, > > stepL[1]=35 ath5k_get_linear_pcdac_min pwrR[0]=11, pwrR[1]=28, > > stepR[0]=20, stepR[1]=35 > > > > As you can see the problem is related only to the frequency range > > 5180-5240MHz. I'll post a separate patch to solve the issue, please add > > your favourite tag. > > > > Fabio > > Any other issues after the patch ?
I have other issues regarding the "stability" of the connection getting this log cfg80211: Calling CRDA to update world regulatory domain ath5k 0000:00:0b.0: PCI INT A -> Link[LNKB] -> GSI 10 (level, low) -> IRQ 10 ath5k 0000:00:0b.0: registered as 'phy0' phy0: Selected rate control algorithm 'minstrel' ath5k phy0: Atheros AR5212 chip found (MAC: 0x56, PHY: 0x41) ath5k phy0: RF5112B multiband radio found (0x36) udev: renamed network interface wlan0 to ath0 ath0: authenticate with AP 00:0c:f6:xx:xx:xx ath0: authenticated ath0: associate with AP 00:0c:f6:xx:xx:xx ath0: RX AssocResp from 00:0c:f6:xx:xx:xx (capab=0x411 status=0 aid=2) ath0: associated phy0: Allocated STA 00:0c:f6:xx:xx:xx phy0: Inserted STA 00:0c:f6:xx:xx:xx ath0: switched to short slot time (BSSID=00:0c:f6:xx:xx:xx) ath0: no probe response from AP 00:0c:f6:xx:xx:xx - disassociating phy0: Removed STA 00:0c:f6:xx:xx:xx phy0: Destroyed STA 00:0c:f6:xx:xx:xx i.e. soon after the association with the AP I'm also disassociated. The problem is that I cannot associate anymore with the "iwconfig ath0 essid" command, I have to remove and load again the ath5k module. I haven't investigated about this problem yet but it doesn't seem strictly related to your tx power calibration patch. Fabio _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
