From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:41448 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751760AbYGDLDq (ORCPT ); Fri, 4 Jul 2008 07:03:46 -0400 Subject: Re: rt61 and TSF reporting? From: Johannes Berg To: Ivo van Doorn Cc: linux-wireless In-Reply-To: <200807041302.44288.IvDoorn@gmail.com> (sfid-20080704_125645_560925_85131DEE) References: <1214907990.7763.40.camel@johannes.berg> <200807041302.44288.IvDoorn@gmail.com> (sfid-20080704_125645_560925_85131DEE) Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-poQs5n91C2GrDGDcNmYA" Date: Fri, 04 Jul 2008 13:02:42 +0200 Message-Id: <1215169362.19862.2.camel@johannes.berg> (sfid-20080704_130351_545531_7C69BFB1) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-poQs5n91C2GrDGDcNmYA Content-Type: text/plain Content-Transfer-Encoding: quoted-printable > I just received an answer from Ralink about this issue, Cool. > 1. For 11b/g based chips rt2500, rt2570, rt61, rt73 doesn't impleme= nt this. Oh, too bad. > 2. For 11n based chips, there is one MAC register have to enable to= have this feature. > But, Word 2 of RXWI will put the timestamp and the RSSI will put to Wo= rd 3. > The original Word 3 SNR will disappear and replace by RSSI. Nice. > As for the timestamps in 2400 and rt2800, they are both in 32bits, so I a= m not sure how > reliable they will be for IBSS. Well 32-bits is plenty if you can also read the TSF to extend it to 64, b43 only gets 16 by the firmware and we just extend it on packet RX. johannes --=-poQs5n91C2GrDGDcNmYA Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJIbgNNAAoJEKVg1VMiehFYeaYP/iC2SGwxKvjRhdfl9UMY5Dtu 0v1bh0jVRexz0KVwbHTNvKgcdUlGmCZj9q2YpQcuuNrn4b2qkQILcI+q9a3dMaTW yKMZyay/8dKehNBZ81VNWbgxrhm+FWH1c5FUHqs77oti9Q4osOD7EQhK2ijWUeyR 7Vg3FipJ0HuCtYCmoh78Y6eAmnHMR676SPGOPl8lFCZErpiHKxgy2dGurEMzEblo qv2plnSJ2xaoCwhtdsj8Azhv9/BBVl5ok+Ihs+vlbx/hsBp61m3EsKGDUKfGKG/E MrnmJiWciR80F3XgpoOxL2BGlA1N6ldCIuv/UvlhKOnvYvnoYbZKMGs/vgqUcYa0 sRpep5CfFXSHtKmtBUHjJ4J4APk/NaRSaljOtz9nhJXUThaf81j/Ui+RNCcKNttT K8vFNN5PBxY5WNuy7y73WgXd8dKLlb6fwE6IbZjJDw0RQAjK/4c7p6t2wD2M9kbv /v1SBZWhg3sSVSLZAqqEX8mXxy82DTi0erfzRJ9ignRaI/0AaOwncVE4KH04RhEp U0JH9bbKLtJd8ezntwHrs+RrBQB6Y4fVcy471euFezUtb7iLBDzmMZVhQeXSkI5O s63TGNL997n4dlcwp4OamEiGKiK1hd2RXIKG5kGTu+X6KlKDuF70qYCuO2O7q2R2 hCDAhjqtc5ZO1lCSKfok =bJgr -----END PGP SIGNATURE----- --=-poQs5n91C2GrDGDcNmYA--