From: Antti Palosaari <crope@iki.fi>
To: Olli Salonen <olli.salonen@iki.fi>, linux-media@vger.kernel.org
Subject: Re: [PATCH 5/6] si2157: Set delivery system and bandwidth before tuning
Date: Sun, 13 Jul 2014 20:15:04 +0300 [thread overview]
Message-ID: <53C2BE98.1050606@iki.fi> (raw)
In-Reply-To: <1405259542-32529-6-git-send-email-olli.salonen@iki.fi>
Applied!
http://git.linuxtv.org/cgit.cgi/anttip/media_tree.git/log/?h=silabs
Antti
On 07/13/2014 04:52 PM, Olli Salonen wrote:
> Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
> ---
> drivers/media/tuners/si2157.c | 31 +++++++++++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
>
> diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
> index 58c5ef5..b656f9b 100644
> --- a/drivers/media/tuners/si2157.c
> +++ b/drivers/media/tuners/si2157.c
> @@ -209,6 +209,7 @@ static int si2157_set_params(struct dvb_frontend *fe)
> struct dtv_frontend_properties *c = &fe->dtv_property_cache;
> int ret;
> struct si2157_cmd cmd;
> + u8 bandwidth, delivery_system;
>
> dev_dbg(&s->client->dev,
> "%s: delivery_system=%d frequency=%u bandwidth_hz=%u\n",
> @@ -220,6 +221,36 @@ static int si2157_set_params(struct dvb_frontend *fe)
> goto err;
> }
>
> + if (c->bandwidth_hz <= 6000000)
> + bandwidth = 0x06;
> + else if (c->bandwidth_hz <= 7000000)
> + bandwidth = 0x07;
> + else if (c->bandwidth_hz <= 8000000)
> + bandwidth = 0x08;
> + else
> + bandwidth = 0x0f;
> +
> + switch (c->delivery_system) {
> + case SYS_DVBT:
> + case SYS_DVBT2: /* it seems DVB-T and DVB-T2 both are 0x20 here */
> + delivery_system = 0x20;
> + break;
> + case SYS_DVBC_ANNEX_A:
> + delivery_system = 0x30;
> + break;
> + default:
> + ret = -EINVAL;
> + goto err;
> + }
> +
> + memcpy(cmd.args, "\x14\x00\x03\x07\x00\x00", 6);
> + cmd.args[4] = delivery_system | bandwidth;
> + cmd.wlen = 6;
> + cmd.rlen = 1;
> + ret = si2157_cmd_execute(s, &cmd);
> + if (ret)
> + goto err;
> +
> /* set frequency */
> memcpy(cmd.args, "\x41\x00\x00\x00\x00\x00\x00\x00", 8);
> cmd.args[4] = (c->frequency >> 0) & 0xff;
>
--
http://palosaari.fi/
next prev parent reply other threads:[~2014-07-13 17:15 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-13 13:52 [PATCH 0/6] [0b48:3014] TechnoTrend TVStick CT2-4400 Olli Salonen
2014-07-13 13:52 ` [PATCH 1/6] si2168: Small typo fix (SI2157 -> SI2168) Olli Salonen
2014-07-13 17:14 ` Antti Palosaari
2014-07-13 13:52 ` [PATCH 2/6] si2168: Add handling for different chip revisions and firmwares Olli Salonen
2014-07-13 17:14 ` Antti Palosaari
2014-07-13 13:52 ` [PATCH 3/6] si2157: Move chip initialization to si2157_init Olli Salonen
2014-07-13 17:14 ` Antti Palosaari
2014-07-13 13:52 ` [PATCH 4/6] si2157: Add support for Si2158 chip Olli Salonen
2014-07-13 17:14 ` Antti Palosaari
2014-07-13 13:52 ` [PATCH 5/6] si2157: Set delivery system and bandwidth before tuning Olli Salonen
2014-07-13 17:15 ` Antti Palosaari [this message]
2014-07-13 13:52 ` [PATCH 6/6] cxusb: TechnoTrend CT2-4400 USB DVB-T2/C tuner support Olli Salonen
2014-07-13 17:15 ` Antti Palosaari
2014-07-13 17:14 ` [PATCH 0/6] [0b48:3014] TechnoTrend TVStick CT2-4400 Antti Palosaari
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