[linux-dvb] Compro VideoMate T750

John Newbigin jnewbigin at optusnet.com.au
Fri Apr 6 09:01:30 CEST 2007


This is more of a status update than any major breakthrough.

I got the IR working under linux by using an existing card type.  I also 
got regspy on windows working but it only shows some GPSTATUS bits 
changing when the IR program is running.  The only other change seen was 
in SAA7134_TS_PARALLEL but more on that below.

The Compro windows software will not run without a sound card.  That 
took some time to figure out and solve :-(  It is also buggy and prone 
to lock up and crashe, but hey, that is why I use linux.

I found the regspy tool from DScaler but it does not officially support 
the 7135.  It did however work and show the following:
SAA7133 Card - State 0:
SAA7134_GPIO_GPMODE:             8082c000   (10000000 10000010 11000000 
00000000)
SAA7134_GPIO_GPSTATUS:           0494c700 * (00000100 10010100 11000111 
00000000)
SAA7134_ANALOG_IN_CTRL1:         c1         (11000001)
SAA7133_ANALOG_IO_SELECT:        34         (00110100)
SAA7133_AUDIO_CLOCK_NOMINAL:     01187de7   (00000001 00011000 01111101 
11100111)
SAA7133_PLL_CONTROL:             01         (00000001)
SAA7133_AUDIO_CLOCKS_PER_FIELD:  0001e066   (00000000 00000001 11100000 
01100110)
SAA7134_VIDEO_PORT_CTRL0:        00000000   (00000000 00000000 00000000 
00000000)
SAA7134_VIDEO_PORT_CTRL4:        00000000   (00000000 00000000 00000000 
00000000)
SAA7134_VIDEO_PORT_CTRL8:        00         (00000000)
SAA7134_I2S_OUTPUT_SELECT:       00         (00000000)
SAA7134_I2S_OUTPUT_FORMAT:       00         (00000000)
SAA7134_I2S_OUTPUT_LEVEL:        00         (00000000)
SAA7134_I2S_AUDIO_OUTPUT:        11         (00010001)
SAA7134_TS_PARALLEL:             e4         (11100100)
SAA7134_TS_PARALLEL_SERIAL:      b9         (10111001)
SAA7134_TS_SERIAL0:              40         (01000000)
SAA7134_TS_SERIAL1:              00         (00000000)
SAA7134_TS_DMA0:                 35         (00110101)
SAA7134_TS_DMA1:                 01         (00000001)
SAA7134_TS_DMA2:                 00         (00000000)
SAA7134_SPECIAL_MODE:            01         (00000001)

The only bits of GPSTATUS which change are
0084c700
0084c700
0284c700
0684c700
0884c700
0894c700

Unfortunately it changes too quick to capture the sequence and regspy 
logging is a bit limited.  Still, it shows the bits, and IR seems to 
work already under Linux.  Perhaps a conclusion that this has the same 
or similar GPIO layout to other compro cards.

When changing from analog to digital, the SAA7134_TS_PARALLEL changed.  
e4 was for DVB but I didn't capture the analog :-(

I think I'll put the card back into a linux box and try hacking some 
things together.

John.

John Newbigin wrote:
> I pulled the card and found the following chips:
> SAA7135HL/203 (CG2548 13 TSG06302)
> COMPRO PRO1A 0643D
> WJCE6353 (W620AA17) (Codfam decoder?)
> ATMEL642 (EEPROM?)
>
> Plus 2 ICs which have been defaced.
> One is a SO-14 package and looks like it might have a Philips logo on 
> it  It might be a 74HC74N.  The 74 can be read.  The letters are a bit 
> harder to make out. I don't know why they would need to deface that.
> One is a SO-8 package and although you can see writing, it can't be read.
>
> There are also 2 metal enclosures.  Much smaller than any I have seen 
> before.  They are both 36mm x 26mm x 5mm. I have not tried opening them.
>
> I forgot that the card also has a wake up clock.  You can connect it 
> to the atx power switch and it can wake up the machine at a specified 
> time. (Might also support PCI wake up).
>
> Other interesting things (all might be crystals):
> 4.0F6L
> 32.1F6L
> S6X3
> NSK 6JLA Z 20.4800
>
> John.
>
> John Newbigin wrote:
>> I have recently been given a Compro VideoMate T750 to get working 
>> with Linux.  Unfortunately it is not yet supported by the v4l-dvb 
>> drivers.
>>
>> This is an Australian card has the following features:
>> - Analog TV Tuner (PAL-BG?)
>> - Analog TV Capture (SVideo & Composite)
>> - FM Radio
>> - IR
>> - DVB-T * 2
>>
>> I have tested a few similar cards using the Mercurial drivers and the 
>> analog capture works.  I have not been able to get the DVB working 
>> (which is what I want the most).
>>
>> I am prepared to do whatever testing is required to get this working 
>> but I was hoping there was a saa7134 expert who could suggest the 
>> best way to go about it.
>>
>> The card is currently installed in my linux dev box but I can pull it 
>> and/or stick it in a windows box if necessary.
>>
>> I have used btspy under windows in the past to figure out bt878 based 
>> cards.  Is there a similar saaspy?
>>
>> T750 Card details:
>> 02:02.0 Class 0480: 1131:7133 (rev d1)
>>       Subsystem: 185b:c900
>>       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 (21000ns min, 8000ns max)
>>       Interrupt: pin A routed to IRQ 217
>>       Region 0: Memory at f6004000 (32-bit, non-prefetchable) [size=2K]
>>       Capabilities: [40] Power Management version 2
>>               Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA 
>> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>>               Status: D0 PME-Enable- DSel=0 DScale=1 PME-
>>
>> saa7133[0]: i2c eeprom 00: 5b 18 00 c9 54 20 1c 00 43 43 a9 1c 55 d2 
>> b2 92
>> saa7133[0]: i2c eeprom 10: 00 ff 86 0f ff 20 ff ff ff ff ff ff ff ff 
>> ff ff
>> saa7133[0]: i2c eeprom 20: 01 40 01 03 03 01 03 01 08 ff 00 89 ff ff 
>> ff ff
>> saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
>> ff ff
>> saa7133[0]: i2c eeprom 40: ff d7 00 c4 86 1e 05 ff 02 c2 ff 01 ff ff 
>> ff ff
>> saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
>> ff cb
>> saa7133[0]: i2c eeprom 60: 30 ff ff ff ff ff ff ff ff ff ff ff ff ff 
>> ff ff
>> saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
>> ff ff
>>
>>
>> Loading the wrong card type (70) results in:
>> saa7133[0]: board init: gpio is 84bf00
>> input: saa7134 IR (Compro Videomate DV as /class/input/input8
>> tuner 1-0062: chip found @ 0xc4 (saa7133[0])
>> tuner 1-0063: chip found @ 0xc6 (saa7133[0])
>> tuner 1-0068: chip found @ 0xd0 (saa7133[0])
>>
>> see also 
>> http://lists-archives.org/video4linux/16606-driver-for-compro-videomate-t750-saa7135-card.html 
>>
>>
>> Any help would be much appreciated.
>>
>> John.
>>
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>
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