i found such fragments:

        if (!ath_hal_setuptxdesc(ah, ds
                , m->m_pkthdr.len + IEEE80211_CRC_LEN   /* packet length
*/
                , sizeof(struct ieee80211_frame)        /* header length
*/
                , HAL_PKT_TYPE_BEACON           /* Atheros packet type */
                , 0x20                          /* txpower XXX */
                , rate, 1                       /* series 0 rate/tries */
                , HAL_TXKEYIX_INVALID           /* no encryption */
                , 0                             /* antenna mode */
                , HAL_TXDESC_NOACK              /* no ack for beacons */
                , 0                             /* rts/cts rate */
                , 0                             /* rts/cts duration */
        )) {


and

        ath_hal_setuptxdesc(ah, ds
                , pktlen                /* packet length */
                , hdrlen                /* header length */
                , atype                 /* Atheros packet type */
                , 60                    /* txpower XXX */
                , txrate, 1+10          /* series 0 rate/tries */
                , iswep ? sc->sc_ic.ic_wep_txkey : HAL_TXKEYIX_INVALID
                , antenna               /* antenna mode */
                , flags                 /* flags */
                , ctsrate               /* rts/cts rate */
                , ctsduration           /* rts/cts duration */
        );





first sets 0x20 as power output level second sets 60 (=0x3C).

is there any description for how this numbers translates to dBm?

is there any interface already done in NetBSD 802.11 routines to set power
output through ifconfig/wiconfig or should i add something.


what are antenna and flags numbers?


finally - is there athhal-elf.o somewhere documented?