[linux-dvb] SetTopBox Samsung SMT7020s with onboard conexant cx23880

[UDDP]Vitalogy vitalogy at uddp.de
Mon Jan 8 14:33:36 CET 2007


hi,

at first sorry for a probably bad english!

for a few month i have bought a set-top-box from samsung on ebay, exatly 
a Sasmung Media Receiver SMT 7020S.
this box has a dvb-s tuner and can also be used for vod from t-online 
(the box ist printed with Ready for T-Online Vision).

here are the specs:

Mobile Intel(R) Celeron(TM) CPU          733MHz
128MB RAM
Intel Corporation 82815 CGC [Chipset Graphics Controller]
Intel Corporation 82801BA/BAM AC'97
Intel Corporation 82801BA IDE U100
VIA Technologies, Inc. USB 2.0
Intel Corporation 82801BA/BAM/CA/CAM Ethernet Controller
Conexant CX23880/1/2/3 PCI Video and Audio Decoder
Conexant CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port]

all chips are placed on one board.
the box has no vga or dvi output, only scart is available.
so the i815 and maybe the cx88 are connect to a focus fs454 (over DVO 
output, see http://216.103.204.9/corporate/pr_new/170903_intel.htm).
the focus fs454 chip is placed on the underside of the board and is 
probably connected via i2c to the i801 and can switch beetween the intel 
and conexant.
or does the conexant write direkt to the buffer from the i815?

pictures are available from 
http://smue.org/gallery/v/vdr/samsung_smt7020s, an i have send some self 
made pics to Gunther Mayer (the email is from
http://www.linuxtv.org/v4lwiki/index.php/How_to_add_support_for_a_new_card)

the box runs original wince from a 32mb dom, but i will see linux 
running on this box

this is the output from lspci -vv

01:04.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video 
and Audio Decoder (rev 05)
   Subsystem: DViCO Corporation Unknown device dc00
   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: 165 (5000ns min, 13750ns max), Cache Line Size: 32 bytes
   Interrupt: pin A routed to IRQ 11
   Region 0: Memory at f5000000 (32-bit, non-prefetchable) [size=16M]
   Capabilities: [44] Vital Product Data
   Capabilities: [4c] Power Management version 2
       Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
       Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:04.2 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and 
Audio Decoder [MPEG Port] (rev 05)
   Subsystem: DViCO Corporation Unknown device dc00
   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: 64 (1500ns min, 22000ns max), Cache Line Size: 32 bytes
   Interrupt: pin A routed to IRQ 11
   Region 0: Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
   Capabilities: [4c] Power Management version 2
       Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
       Status: D0 PME-Enable- DSel=0 DScale=0 PME-

lspci -vn

01:04.0 0400: 14f1:8800 (rev 05)
   Subsystem: 18ac:dc00
   Flags: bus master, medium devsel, latency 165, IRQ 11
   Memory at f5000000 (32-bit, non-prefetchable) [size=16M]
   Capabilities: [44] Vital Product Data
   Capabilities: [4c] Power Management version 2

01:04.2 0480: 14f1:8802 (rev 05)
   Subsystem: 18ac:dc00
   Flags: bus master, medium devsel, latency 64, IRQ 11
   Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
   Capabilities: [4c] Power Management version 2

additional there are a STV6412A, a ISL6421AER, an ATMEL042 24C02N and 
the tuner TDQF-S001F.
there is also a winbond w83627hf.
can anyone please point me to the right way, or can help to get this box 
work?

on the backside is a 6-pin connector called console near the tuner. ???

best regards
MichaeL




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