Hi all
Sorry for late reply, it's because only I can do during my free time.
El 04/03/13 23:30, Mauro Carvalho Chehab escribió:
I test, but not work.
Before the latest patches, obtained as follows, for example:
dmesg
[ 397.076641] mb86a20s: mb86a20s_read_status:
[ 397.077129] mb86a20s: mb86a20s_read_status: val = X, status = 0xXX
I did a cleanup at the printk messages. Also, the debug ones now use
dynamic_printk. That means that they're disabled by default. They can
be enabled in runtime (and per-line). If you want to enable all messages,
you can do:
To enable all debug messages on mb86a20s:
echo "file drivers/media/dvb-frontends/mb86a20s.c +p" > /sys/kernel/debug/dynamic_debug/control
To clean all debug messages
echo "-p" > /sys/kernel/debug/dynamic_debug/control
I think I made something wrong, because I only get this:
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:2089
[mb86a20s]mb86a20s_attach =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:2117
[mb86a20s]mb86a20s_attach =_ "Frontend revision %d is unknown -
aborting.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1970
[mb86a20s]mb86a20s_read_status_and_stats =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:327
[mb86a20s]mb86a20s_read_status =_ "%s: Status = 0x%02x (state = %d)\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:381
[mb86a20s]mb86a20s_read_signal_strength =_ "%s: signal strength = %d (%d
< RF=%d < %d)\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:526
[mb86a20s]mb86a20s_reset_frontend_cache =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:653
[mb86a20s]mb86a20s_get_frontend =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:671
[mb86a20s]mb86a20s_get_frontend =_ "%s: getting data for layer %c.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:688
[mb86a20s]mb86a20s_get_frontend =_ "%s: modulation %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:694
[mb86a20s]mb86a20s_get_frontend =_ "%s: FEC %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:700
[mb86a20s]mb86a20s_get_frontend =_ "%s: interleaving %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:503
[mb86a20s]mb86a20s_get_segment_count =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:516
[mb86a20s]mb86a20s_get_segment_count =_ "%s: segments: %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:641
[mb86a20s]mb86a20s_layer_bitrate =_ "%s: layer %c bitrate: %d kbps;
counter = %d (0x%06x)\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1605
[mb86a20s]mb86a20s_get_stats =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1419
[mb86a20s]mb86a20s_get_main_CNR =_ "%s: CNR is not available yet.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1441
[mb86a20s]mb86a20s_get_main_CNR =_ "%s: CNR is %d.%03d dB (%d)\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1461
[mb86a20s]mb86a20s_get_blk_error_layer_CNR =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1474
[mb86a20s]mb86a20s_get_blk_error_layer_CNR =_ "%s: MER measures aren't
available yet.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1530
[mb86a20s]mb86a20s_get_blk_error_layer_CNR =_ "%s: CNR for layer %c is
%d.%03d dB (MER = %d).\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:829
[mb86a20s]mb86a20s_get_pre_ber =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:843
[mb86a20s]mb86a20s_get_pre_ber =_ "%s: preBER for layer %c is not
available yet.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:863
[mb86a20s]mb86a20s_get_pre_ber =_ "%s: bit error before Viterbi for
layer %c: %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:890
[mb86a20s]mb86a20s_get_pre_ber =_ "%s: bit count before Viterbi for
layer %c: %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:904
[mb86a20s]mb86a20s_get_pre_ber =_ "%s: updating layer %c preBER counter
to %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:963
[mb86a20s]mb86a20s_get_post_ber =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:977
[mb86a20s]mb86a20s_get_post_ber =_ "%s: post BER for layer %c is not
available yet.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:997
[mb86a20s]mb86a20s_get_post_ber =_ "%s: post bit error for layer %c:
%d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1018
[mb86a20s]mb86a20s_get_post_ber =_ "%s: post bit count for layer %c:
%d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1038
[mb86a20s]mb86a20s_get_post_ber =_ "%s: updating postBER counter on
layer %c to %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1090
[mb86a20s]mb86a20s_get_blk_error =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1108
[mb86a20s]mb86a20s_get_blk_error =_ "%s: block counts for layer %c
aren't available yet.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1128
[mb86a20s]mb86a20s_get_blk_error =_ "%s: block error for layer %c: %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1148
[mb86a20s]mb86a20s_get_blk_error =_ "%s: block count for layer %c: %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1169
[mb86a20s]mb86a20s_get_blk_error =_ "%s: updating PER counter on layer
%c to %d.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1560
[mb86a20s]mb86a20s_stats_not_ready =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1895
[mb86a20s]mb86a20s_set_frontend =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:764
[mb86a20s]mb86a20s_reset_counters =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:2061
[mb86a20s]mb86a20s_tune =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1782
[mb86a20s]mb86a20s_initfe =_ "%s called.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1840
[mb86a20s]mb86a20s_initfe =_ "%s: fclk=%d, IF=%d, clock reg=0x%06llx\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1858
[mb86a20s]mb86a20s_initfe =_ "%s: IF=%d, IF reg=0x%06llx\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:1885
[mb86a20s]mb86a20s_initfe =_ "Initialization succeeded.\012"
/home/alfredo/ISDB/Nuevo_Driver/git/media_build/v4l/mb86a20s.c:2076
[mb86a20s]mb86a20s_release =_ "%s called.\012"
I have read dynamic-debug-howto.txt and I put the beginning on "GRUB!"
the following:
dyndbg=mb86a20s or
dyndbg_query=mb86a20s or
mb86a20s.dyndbg="QUERY" or
dyndbg="QUERY"
But no change. Something I'm misinterpreting.
To enable just the *ber* or *BER* ones:
for i in $(cat /sys/kernel/debug/dynamic_debug/control|grep mb86a20s.c|grep -i ber|cut -d' ' -f 1|cut -d: -f2); do
echo "file drivers/media/dvb-frontends/mb86a20s.c line $i +p" > /sys/kernel/debug/dynamic_debug/control
done
and now, I don't get anything. But if I use VLC I get this:
dtvdebug: frontend status: 0x00
dtvdebug: frontend status: 0x03
dtvdebug: frontend status: 0x07
dtvdebug: frontend status: 0x01
Ok, that means that it is trying to sync Viterbi. You're better served if you
use dvbv5-scan[1], instead, as it will provide you more information (eventually
CNR - if it can keep status = 0x07 for a while, or if you have a zap file:
$ dvbv5-zap -I zap -c ~/isdb_channel.conf "globo 1seg"
using demux '/dev/dvb/adapter0/demux0'
reading channels from file '/home/mchehab/isdb_channel.conf'
tuning to 485142857 Hz
video pid 529
dvb_set_pesfilter 529
audio pid 530
dvb_set_pesfilter 530
RF (0x01) Signal= 0.00%
RF (0x01) Signal= 0.00%
RF (0x01) Signal= 0.00%
Carrier(0x03) Signal= 0.00%
RF (0x01) Signal= 0.00%
RF (0x01) Signal= 0.00%
Lock (0x1f) Quality= Poor Signal= 6.25% C/N= 15.57dB UCB= 96965 postBER= 0 preBER= 3.08x10^-3 PER= 1.00
Layer A: Quality= Poor C/N= 15.52dB UCB= 4064 postBER= 0 preBER= 3.08x10^-3 PER= 1.00
Layer B: C/N= 30.00dB
I get this:
alfredo@linux-puon:~> dvbv5-zap -I zap -c ~/channels.conf "Encuentro"
using demux '/dev/dvb/adapter0/demux0'
reading channels from file '/home/alfredo/channels.conf'
CODE_RATE_HP (36) command not found during store
CODE_RATE_LP (37) command not found during store
MODULATION (4) command not found during store
HIERARCHY (40) command not found during store
tuning to 521142857 Hz
video pid 272
audio pid 273
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 07 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 03 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
status 01 | signal 0000 | snr ffff | ber 00000000 | unc 0000ffff |
^C
not good.
I think I asked it already, but eventually, it is just antenna.
My antenna have visual contact with tower of transmission, is only 2 km
away.
The easiest way to discover is to enable the mb86a20s debug:
[ 1443.564782] i2c i2c-3: mb86a20s_initfe: fclk=32571428, IF=4000000, clock reg=0x00ff80
[ 1443.566781] i2c i2c-3: mb86a20s_initfe: IF=4000000, IF reg=0x3ee08f
The IF here come from the tuner, via ops.get_if_frequency().
I made the following tests:
rmmod cx23885
rmmod mb86a20s
modprobe cx23885
and see the traffic of i2c. I made it five times, and got this:
1rm= first rmmod-modprobe
2rm= second rmmod-modprobe
...
"ef (x119)" means that "ef" is repeated 119 times
"E.b.l." means Error byte lenght
1rm 2rm 3rm 4rm 5rm
a0 a0 a0 a0 a0
00 00 00 00 00
a1 a1 a1 a1 a1
08 08 08 08 08
00 00 00 00 00
18 30 18 18 18
03 06 03 03 03
00 00 00 00 00
00 00 00 00 00
03 06 03 03 03
ff fe ff ff ff
20 40 20 20 20
00 00 00 00 00
13 26 13 13 13
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
20 40 20 40 20
00 00 00 00 00
13 26 30 26 13
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
20 00 01 00 20
00 40 00 40 00
13 00 00 00 13
00 26 30 26 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
40 00 02 00 20
00 40 00 40 00
26 00 01 00 13
00 26 60 26 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
40 00 02 00 40
00 40 00 40 00
26 00 01 00 26
00 26 60 4c 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
80 00 02 80 80
00 40 00 00 00
4c 00 01 4c 4c
00 26 60 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 02 80 80
00 40 00 00 00
98 00 01 4c 4c
00 26 60 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 02 80 80
00 40 00 00 00
98 00 01 4c 4c
00 26 60 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 00 00
00 00 00 80 00
00 00 02 00 80
98 40 00 4c 00
00 00 01 00 4c
00 26 60 00 00
00 00 00 00 00
00 00 00 20 00
00 00 00 00 00
40 00 00 60 00
00 00 00 0c 20
c0 10 00 00 00
18 00 01 00 60
00 30 00 0d 0c
00 06 60 74 00
1a 00 00 30 00
e8 00 00 0c 0d
60 06 69 14 74
18 3a a0 00 30
60 18 80 38 0c
00 06 60 04 14
c0 0a 80 00 00
20 00 01 00 38
00 1c 80 80 04
02 04 40 00 00
00 00 00 4c 00
01 00 04 00 80
60 80 00 00 00
00 00 02 00 4c
00 4c c0 00 00
00 00 00 00 00
00 00 00 40 00
05 00 00 0c 00
00 00 00 14 00
60 00 0a 00 40
a0 40 00 11 0c
00 0c c0 00 14
88 14 40 00 00
00 00 00 20 11
00 11 10 b0 00
02 00 01 00 00
80 00 05 14 40
00 20 00 01 60
a0 b0 00 c4 00
0f 00 0f40 50 28
21 14 1e 09 03
80 01 Write to PCF8574 14 88
48 c4 40 30 a0
a0 50 24 0c 12
80 09 50 15 28
60 14 c0 00 60
a8 30 30 38 18
00 0c 54 04 2a
c0 15 00 00 00
20 00 e0 01 70
00 38 10 08 08
08 04 00 04 00
40 00 04 00 02
20 01 20 88 10
02 08 10 e0 10
47 04 01 00 01
00 00 26 00 23
00 88 80 01 80
00 e0 00 fd (x24) 00
0f 00 00 fb (x25) 00
ef (x119) 00 07 f9 (x41) 07
20 01 f7 (x46) ef (x27) f7 (x38)
00 fd (x48) ef (x7) E.b.l. ef (x81)
21 fb (x70) bf (x9) 20
13 20 7f (x37) 00
E.b.l. 21 ff (x20) 21
13 E.b.l. 17
E.b.l. start stop
20
00
21
17
stop
My question: Why I not get every time the same?
First supposition: There is noise. I placed an oscilloscope and the
noise level is below the i2c protocol standard.
Second supposition: The wrong takes logic analyzer waveform. No,the
waveform of the oscilloscope and logic analyzer are equal.
Someone can explain me why?
Thanks,
Alfredo
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