* [PATCH] dvb-core: set default properties of ISDB-S
@ 2014-10-26 12:01 tskd08
2014-10-26 12:13 ` Antti Palosaari
0 siblings, 1 reply; 3+ messages in thread
From: tskd08 @ 2014-10-26 12:01 UTC (permalink / raw)
To: linux-media; +Cc: m.chehab, Akihiro Tsukada
From: Akihiro Tsukada <tskd08@gmail.com>
delsys-fixed props should be set in dvb-core instead of in each driver.
---
drivers/media/dvb-core/dvb_frontend.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index c862ad7..1e9b814 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -962,6 +962,10 @@ static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
case SYS_ATSC:
c->modulation = VSB_8;
break;
+ case SYS_ISDBS:
+ c->symbol_rate = 28860000;
+ c->rolloff = ROLLOFF_35;
+ break;
default:
c->modulation = QAM_AUTO;
break;
@@ -2074,6 +2078,7 @@ static int dtv_set_frontend(struct dvb_frontend *fe)
break;
case SYS_DVBS:
case SYS_TURBO:
+ case SYS_ISDBS:
rolloff = 135;
break;
case SYS_DVBS2:
--
2.1.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] dvb-core: set default properties of ISDB-S
2014-10-26 12:01 [PATCH] dvb-core: set default properties of ISDB-S tskd08
@ 2014-10-26 12:13 ` Antti Palosaari
[not found] ` <544CF97D.80109@gmail.com>
0 siblings, 1 reply; 3+ messages in thread
From: Antti Palosaari @ 2014-10-26 12:13 UTC (permalink / raw)
To: tskd08, linux-media; +Cc: m.chehab
Moikka
How is channel bandwidth defined? Is it static? 38961000 Hz?
regards
Antti
On 10/26/2014 02:01 PM, tskd08@gmail.com wrote:
> From: Akihiro Tsukada <tskd08@gmail.com>
>
> delsys-fixed props should be set in dvb-core instead of in each driver.
> ---
> drivers/media/dvb-core/dvb_frontend.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
> index c862ad7..1e9b814 100644
> --- a/drivers/media/dvb-core/dvb_frontend.c
> +++ b/drivers/media/dvb-core/dvb_frontend.c
> @@ -962,6 +962,10 @@ static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
> case SYS_ATSC:
> c->modulation = VSB_8;
> break;
> + case SYS_ISDBS:
> + c->symbol_rate = 28860000;
> + c->rolloff = ROLLOFF_35;
> + break;
> default:
> c->modulation = QAM_AUTO;
> break;
> @@ -2074,6 +2078,7 @@ static int dtv_set_frontend(struct dvb_frontend *fe)
> break;
> case SYS_DVBS:
> case SYS_TURBO:
> + case SYS_ISDBS:
> rolloff = 135;
> break;
> case SYS_DVBS2:
>
--
http://palosaari.fi/
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] dvb-core: set default properties of ISDB-S
[not found] ` <544D2271.6050800@iki.fi>
@ 2014-10-27 12:15 ` Akihiro TSUKADA
0 siblings, 0 replies; 3+ messages in thread
From: Akihiro TSUKADA @ 2014-10-27 12:15 UTC (permalink / raw)
To: Antti Palosaari; +Cc: linux-media
On 2014年10月27日 01:33, Antti Palosaari wrote:
> You should calculate bw too as tuners needs set filters according to
> used channel bw. You could calculate nominal needed be using formula:
> bandwidth = roll-off factor * symbol rate
I'll include it in the next version.
thx
--
Akihiro
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-10-27 12:15 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-10-26 12:01 [PATCH] dvb-core: set default properties of ISDB-S tskd08
2014-10-26 12:13 ` Antti Palosaari
[not found] ` <544CF97D.80109@gmail.com>
[not found] ` <544D2271.6050800@iki.fi>
2014-10-27 12:15 ` Akihiro TSUKADA
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).