From: Akihiro TSUKADA <tskd08@gmail.com>
To: Antti Palosaari <crope@iki.fi>, linux-media@vger.kernel.org
Cc: m.chehab@samsung.com
Subject: Re: [PATCH v2 1/5] dvb-core: add a new tuner ops to dvb_frontend for APIv5
Date: Thu, 28 Aug 2014 18:07:16 +0900 [thread overview]
Message-ID: <53FEF144.6060106@gmail.com> (raw)
In-Reply-To: <53FE1EF5.5060007@iki.fi>
moikka,
thanks for the comment.
> I have feeling DVBv5 API is aimed to transfer data via property cached.
> I haven't done much driver for DVBv5 statistics, but recently I
> implemented CNR (DVBv5 stats) to Si2168 driver and it just writes all
> the values directly to property cache. I expect RF strength (RSSI) is
> just similar.
Currently, the demod of PT3 card (tc90522) gets RSSI data from
the connected tuner (mxl301rf) via tuner_ops.get_signal_strength_dbm()
and sets property cache in fe->ops.get_frontend() (which is called
before returning property cache value by dvb_frontend_ioctl_properties()).
If the tuner driver should set property cache directly,
when is the right timing to do so?
In fe->ops.tuner_ops.get_status() ?
or in the old fe->ops.tuner_ops.get_signal_strength()?
or Should I change get_signal_strength_dbm(fe, s64 *) to
update_signal_strength(fe) and let the tuner driver set property cache there?
--
akihiro
next prev parent reply other threads:[~2014-08-28 9:07 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-27 15:29 [PATCH v2 0/5] dvb: Add support for PT3 ISDB-S/T card tskd08
2014-08-27 15:29 ` [PATCH v2 1/5] dvb-core: add a new tuner ops to dvb_frontend for APIv5 tskd08
2014-08-27 18:09 ` Antti Palosaari
2014-08-28 9:07 ` Akihiro TSUKADA [this message]
2014-08-29 1:05 ` Antti Palosaari
2014-08-29 10:45 ` Akihiro TSUKADA
2014-09-06 2:09 ` Antti Palosaari
2014-09-06 2:51 ` Mauro Carvalho Chehab
2014-09-06 2:54 ` Mauro Carvalho Chehab
2014-09-06 3:10 ` Antti Palosaari
2014-09-06 3:17 ` Mauro Carvalho Chehab
2014-09-06 3:34 ` Antti Palosaari
2014-09-06 12:35 ` Mauro Carvalho Chehab
2014-09-06 4:08 ` Akihiro TSUKADA
2014-09-06 10:36 ` Antti Palosaari
2014-09-06 12:49 ` Mauro Carvalho Chehab
2014-09-06 16:24 ` Malcolm Priestley
2014-09-06 16:31 ` Malcolm Priestley
2014-09-06 21:37 ` Malcolm Priestley
2014-09-06 22:37 ` Mauro Carvalho Chehab
2014-09-06 23:38 ` Antti Palosaari
2014-09-07 9:35 ` Malcolm Priestley
2014-08-27 15:29 ` [PATCH v2 2/5] mxl301rf: add driver for MaxLinear MxL301RF OFDM tuner tskd08
2014-08-27 15:29 ` [PATCH v2 3/5] qm1d1c0042: add driver for Sharp QM1D1C0042 ISDB-S tuner tskd08
2014-08-27 15:29 ` [PATCH v2 4/5] tc90522: add driver for Toshiba TC90522 quad demodulator tskd08
2014-08-31 10:29 ` Matthias Schwarzott
2014-08-31 13:32 ` Akihiro TSUKADA
2014-08-31 19:48 ` Antti Palosaari
2014-09-01 9:54 ` Akihiro TSUKADA
2014-09-06 2:02 ` Antti Palosaari
2014-09-06 2:27 ` Mauro Carvalho Chehab
2014-09-06 3:00 ` DVB clock source (Re: [PATCH v2 4/5] tc90522: add driver for Toshiba TC90522 quad demodulator) Antti Palosaari
2014-09-06 3:11 ` Mauro Carvalho Chehab
2014-09-06 3:20 ` Antti Palosaari
2014-09-06 6:09 ` [PATCH v2 4/5] tc90522: add driver for Toshiba TC90522 quad demodulator Akihiro TSUKADA
2014-09-06 6:51 ` Antti Palosaari
2014-09-06 19:35 ` Akihiro TSUKADA
2014-09-07 1:05 ` Antti Palosaari
2014-09-06 7:13 ` Antti Palosaari
2014-08-27 15:29 ` [PATCH v2 5/5] pt3: add support for Earthsoft PT3 ISDB-S/T receiver card tskd08
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