On 01/15/2012 08:37 PM, Antti Palosaari wrote:
On 01/11/2012 12:00 AM, Mauro Carvalho Chehab wrote:
On 10-01-2012 19:36, Antti Palosaari wrote:
Behaviour of new FE is strange for my eyes. Could you look and
explain if it is intentional?

I still see that it changes delivery system automatically to the DVB-T.


That is the latest commit:

commit 149709f5b8a4a8678401facb5c670119751f6087
Author: Mauro Carvalho Chehab <mche...@redhat.com>
Date: Fri Jan 13 11:46:36 2012 -0200

[media] dvb-core: preserve the delivery system at cache clear

The changeset 240ab508aa is incomplete, as the first thing that
happens at cache clear is to do a memset with 0 to the cache.

So, the delivery system needs to be explicitly preserved there.

Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com>


And here is log:

[crope@localhost code]$ ./tmp/v4l-utils/utils/dvb/dvb-fe-tool
--set-delsys=DVBC/ANNEX_A
Device Sony CXD2820R (DVB-T/T2) (/dev/dvb/adapter0/frontend0) capabilities:
CAN_2G_MODULATION CAN_FEC_1_2 CAN_FEC_2_3 CAN_FEC_3_4 CAN_FEC_5_6
CAN_FEC_7_8 CAN_FEC_AUTO CAN_GUARD_INTERVAL_AUTO CAN_HIERARCHY_AUTO
CAN_INVERSION_AUTO CAN_MUTE_TS CAN_QAM_16 CAN_QAM_64 CAN_QAM_256
CAN_QAM_AUTO CAN_QPSK CAN_TRANSMISSION_MODE_AUTO
DVB API Version 5.5, Current v5 delivery system: DVBT
Supported delivery systems: [DVBT] DVBT2 DVBC/ANNEX_A
Changing delivery system to: DVBC/ANNEX_A
[crope@localhost code]$ scan ../fi-Oulu-c
scanning ../fi-Oulu-c
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 330000000 6875000 0 4
initial transponder 370000000 6875000 0 4
initial transponder 362000000 6875000 0 4
initial transponder 354000000 6875000 0 4
initial transponder 346000000 6875000 0 4
initial transponder 338000000 6875000 0 4
initial transponder 322000000 6875000 0 4
initial transponder 314000000 6875000 0 4
initial transponder 378000000 6875000 0 4
initial transponder 306000000 6875000 0 4
initial transponder 298000000 6875000 0 4
initial transponder 290000000 6875000 0 5
initial transponder 274000000 6875000 0 5
initial transponder 266000000 6875000 0 5
initial transponder 258000000 6875000 0 5
initial transponder 250000000 6875000 0 5
initial transponder 242000000 6875000 0 5
 >>> tune to: 330000000:INVERSION_AUTO:6875000:FEC_NONE:QAM_128
^CERROR: interrupted by SIGINT, dumping partial result...
dumping lists (0 services)
Done.
[crope@localhost code]$ scan ../fi-Oulu-c
scanning ../fi-Oulu-c
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 330000000 6875000 0 4
initial transponder 370000000 6875000 0 4
initial transponder 362000000 6875000 0 4
initial transponder 354000000 6875000 0 4
initial transponder 346000000 6875000 0 4
initial transponder 338000000 6875000 0 4
initial transponder 322000000 6875000 0 4
initial transponder 314000000 6875000 0 4
initial transponder 378000000 6875000 0 4
initial transponder 306000000 6875000 0 4
initial transponder 298000000 6875000 0 4
initial transponder 290000000 6875000 0 5
initial transponder 274000000 6875000 0 5
initial transponder 266000000 6875000 0 5
initial transponder 258000000 6875000 0 5
initial transponder 250000000 6875000 0 5
initial transponder 242000000 6875000 0 5
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
WARNING: frontend type (OFDM) is not compatible with requested tuning
type (QAM)
ERROR: initial tuning failed
dumping lists (0 services)
Done.
[crope@localhost code]$ ./tmp/v4l-utils/utils/dvb/dvb-fe-tool
--set-delsys=DVBC/ANNEX_A
Device Sony CXD2820R (DVB-T/T2) (/dev/dvb/adapter0/frontend0) capabilities:
CAN_2G_MODULATION CAN_FEC_1_2 CAN_FEC_2_3 CAN_FEC_3_4 CAN_FEC_5_6
CAN_FEC_7_8 CAN_FEC_AUTO CAN_GUARD_INTERVAL_AUTO CAN_HIERARCHY_AUTO
CAN_INVERSION_AUTO CAN_MUTE_TS CAN_QAM_16 CAN_QAM_64 CAN_QAM_256
CAN_QAM_AUTO CAN_QPSK CAN_TRANSMISSION_MODE_AUTO
DVB API Version 5.5, Current v5 delivery system: DVBT
Supported delivery systems: [DVBT] DVBT2 DVBC/ANNEX_A
Changing delivery system to: DVBC/ANNEX_A
[crope@localhost code]$

That seems to be due to cxd2820r bug introduced by multi-frontend to single-frontend change.


But now I got that error:
[crope@localhost code]$ ./tmp/v4l-utils/utils/dvb/dvb-fe-tool --set-delsys=DVBC/ANNEX_A
Device or resource busy while opening /dev/dvb/adapter0/frontend0
Changing delivery system to: DVBC/ANNEX_A
Segmentation fault (core dumped)
[crope@localhost code]$

I opened device using VLC and then try to switch it to correct mode. But it crash and no picture.

Antti


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