#306: madwifi-ng + chipset 5211 not setting txpower, but madwifi-old/r1417 works
fine(Can't set txpower by iwconfig command)
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Reporter: [EMAIL PROTECTED] | Owner: dyqith
Type: defect | Status: assigned
Priority: major | Milestone:
Component: madwifi: other | Version: trunk
Resolution: | Keywords: txpower
Patch_attached: 0 |
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Comment (by [EMAIL PROTECTED]):
Hi All,
I think there is a bug in ath_update_txpow() function.
The way in which the maximum txpower of chip is calculated is wrong.
/********* original code *******************/
u_int32_t maxtxpowlimit = 9999;
u_int32_t clamped_txpow = 0;
/*
* Find the maxtxpow of the card and regulatory constraints
*/
(void)ath_hal_getmaxtxpow(ah, &txpowlimit);
ath_hal_settxpowlimit(ah, maxtxpowlimit);
(void)ath_hal_getmaxtxpow(ah, &maxtxpowlimit);
ic->ic_txpowlimit = maxtxpowlimit;
ath_hal_settxpowlimit(ah, txpowlimit);
/********************************************/
In the above lines of code, a very high value of 9999 is set to
txpowlimit using ath_hal_settxpowlimit()function.
The logic is that the hal will put in a sane value instead of 9999.
but while reading back the values --> ath_hal_getmaxtxpow() is used.
For .11b mode the hal is returning a very low value for
ath_hal_getmaxtxpow().
Replacing ath_hal_getmaxtxpow() with ath_hal_gettxpowlimit() is working
fine
for me with ar5312A soc.
Regards,
Vinay
--
Ticket URL: <http://madwifi.org/ticket/306>
MadWifi <http://madwifi.org/>
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