[linux-dvb] activy dvb-t: Card should be recognized but...

Amaury De Ganseman amaury.deganseman at gmail.com
Wed Jan 3 19:52:34 CET 2007


Hello,

I have a dvb-t card Activy DVB-T Budget (based on SAA7146 and lsi l64781).
There's driver for all these chips I think but I have some problems
with this card I explain:

first it wasn't detected by the driver so Christophe (on linuxtv irc
channel) writes me a patch wich makes the card detect (see dmesg
below).

If I do a dvbscan it says:

scanning be-Charleroi
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 754000000 0 2 9 1 1 2 0
>>> tune to: 754000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 754000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.

Params are OK because a friend has the same and it works ;-)

One output of tzap:
status 01 | signal 3535 | snr 0000 | ber 0000ffff | unc 00000000 |

(status is sometimes 03)

Christophe says that bit error rate: 0000ffff should be 0


So my question: all chips should be recognized and detected so why
this doesn't work at all ?


If you want to see the card and chips: http://ato.linux-charleroi.be/dvbt/

see the patch in attach (the loop was to be sur about the adress I think)

dmesg:
saa7146: register extension 'budget dvb'.
ACPI: PCI Interrupt 0000:00:0d.0[A] -> GSI 18 (level, low) -> IRQ 18
saa7146: found saa7146 @ mem ffffc20010466000 (revision 1, irq 18)
(0x1131,0x5f61).
saa7146 (0): dma buffer size 192512
DVB: registering new adapter (Fujitsu Siemens Activy Budget-S PCI (rev
GR/grundig frontend)).
adapter failed MAC signature check
encoded MAC from EEPROM was
69:65:6d:65:6e:73:00:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff
DVB: registering frontend 0 (LSI L64781 DVB-T)...


lspci -vn:00:0d.0 0480: 1131:7146 (rev 01)
        Subsystem: 1131:5f61
        Flags: bus master, medium devsel, latency 32, IRQ 18
        Memory at de001000 (32-bit, non-prefetchable) [size=512]

lspci -vvv:
00:0d.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
        Subsystem: Philips Semiconductors Activy DVB-T Budget
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (3750ns min, 9500ns max)
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at de001000 (32-bit, non-prefetchable) [size=512]


I think I have all information needed... ;-)


Thanks for help

De Ganseman Amaury
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