Date: Wed, 26 Apr 2017 11:41:26 +0200 (CEST) From: Valentin VERGEZ <valentin.vergez@stormshield.eu> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: freebsd-wireless@freebsd.org Subject: Re: [PHY] Adaptive equipment Message-ID: <2059229927.50320865.1493199686278.JavaMail.zimbra@stormshield.eu> In-Reply-To: <CAJ-VmomiafpnpCJUfU-s%2BxvhxZmCXPyruyu13Me73JKNgQU9Cw@mail.gmail.com> References: <159600163.49355995.1492610180223.JavaMail.zimbra@stormshield.eu> <CAJ-VmomiafpnpCJUfU-s%2BxvhxZmCXPyruyu13Me73JKNgQU9Cw@mail.gmail.com>
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Hi, Thanks adrian for the answers ! I wonder who provides the ATH HAL (for 93000) ? Qualcomm ? The linux ath9k do not use any HAL, so does Qualcomm provide an HAL only fo= r BSD ? Valentin, ----- Mail original ----- > De: "Adrian Chadd" <adrian.chadd@gmail.com> > =C3=80: "Valentin VERGEZ" <valentin.vergez@stormshield.eu> > Cc: freebsd-wireless@freebsd.org > Envoy=C3=A9: Mercredi 19 Avril 2017 17:23:25 > Objet: Re: [PHY] Adaptive equipment > hiya, >=20 > there's no DFS mode publicly available for ath. Everything but the > radar detector is in freebsd-head. >=20 > Oh, if it's talking about adaptive being "transmit rate" then yes, you > can configure a static transmit rate (ifconfig wlanX ucastrate Y). >=20 > Listen before talk is normal atheros CCA. it's done by the chip, > programmed by the HAL and can be driver controlled if you know what > code to add. By default it's set to the -62dBm level that you need for > CCA. >=20 > Thanks! >=20 >=20 >=20 > -adrian >=20 >=20 > On 19 April 2017 at 06:56, Valentin VERGEZ > <valentin.vergez@stormshield.eu> wrote: >> Hi, >> >> Do you guys know if the "Adaptive" aspect on a FreeBSD wifi product is >> manageable ? >> For an ETSI compliance certification, on a FreeBSD wifi Access Point wit= h >> Atheros AR9380 NIC, the certifying authority needs to know if the equipm= ent is >> adaptive or non-adaptive. And if it's an adaptive equipment, if it has t= he >> possibility to switch to a non-adaptive mode. >> >> Regarding ETSI EN 300 328 V1.9.1 section 4.2.2, Adaptive could correspon= d to DFS >> ... which, on hostap mode, is not fully implemented ? >> >> I thought that adaptive was for auto-selecting modulation depending on >> Signal/Noise ratio. But now, i'm confused. >> >> However, it is my understanding that these aspects are operated by the Q= ualcomm >> HAL and therefore not manageable. I seek confirmation on this point. >> >> While I am on the subject, I wonder if the "Listen Before Talk" is Frame= Based >> or Load Based. And again, is it operated by the HAL or an upper layer ? >> >> Thanks, >> --- >> >> >> Valentin VERGEZ >> _______________________________________________ >> freebsd-wireless@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-wireless > > To unsubscribe, send any mail to "freebsd-wireless-unsubscribe@freebsd.= org"
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