Conexant Fusion 878A - based TV card

lalev at uni-svishtov.bg lalev at uni-svishtov.bg
Thu May 4 22:40:30 UTC 2006


I've lost it's box and there are no other inscriptions on the card,
except for a big "PixelView" sticker overlapping the sticker with
the model of the tuner itself. I believe that the exact model
is PlayTV 2, but I'm not absolutely sure on this.

The chip is inscribed Conexant Fusion 878A and the sticker of the tuner
is TNF-9935-B/DFF.

The only 2 visible chips on the card are labeled 0451CIRUS
(I couldn't lookup this) and 74HC405D (multiplexor of some kind).


scanpci output:

pci bus 0x0002 cardnum 0x00 function 0x00: vendor 0x109e device 0x036e
 Brooktree Corporation Bt878 Video Capture

pci bus 0x0002 cardnum 0x00 function 0x01: vendor 0x109e device 0x0878
 Brooktree Corporation Bt878 Audio Capture


bktr driver initialization

May  4 12:54:03 fence kernel: bktr0: [GIANT-LOCKED]
May  4 12:54:03 fence kernel: bktr0: Card has no configuration EEPROM.
Cannot determine card make.
May  4 12:54:03 fence kernel: bktr0: MT2032: Companycode=3c3c Part=3c
Revision=3c
May  4 12:54:03 fence kernel: bktr0: MT2032 not found or unknown type
May  4 12:54:03 fence kernel: bktr0: Pinnacle/Miro TV, Temic PAL I tuner.


The xawtv and fxtv both reported error initializing bktr.

Being a complete layman,
I'm almost sure the next section will make someone laugh, but anyway
I hope it may contain some useful information.

I've determined that the function
locate_eeprom_address in bktr_card.c
fails to detect the eeprom address on the I2C bus.

After hardcoding the address A0 for the I2C EEPROM address, which I
think is consistent with an example in the documentation of the chip
(See http://www.conexant.com/servlets/DownloadServlet/100600B.pdf?FileId=443,
3.5. Serial I2C EEPROM Interface

I ve got the following output at the initialization time:

bktr0: <BrookTree 878A> mem 0xf4000000-0xf4000fff irq 18 at device 0.0 on
pci2
bktr0: [GIANT-LOCKED]
bktr0: Warning - card vendor 0x0000 (model 0x6403) unknown.
bktr0: MT2032: Companycode=3c3c Part=3c Revision=3c
bktr0: MT2032 not found or unknown type
bktr0: Pinnacle/Miro TV, Temic PAL I tuner.

So, If anyone give me a hint what's next I'll be thankful :-))

Btw, is it possible that there is no eeprom at all ?



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