On Wed, Aug 09, 2006 at 12:51:03AM +0200, Tobias Stoeber wrote: [...] > says, that there is a driver for the BaluTV-based PCMCIA DVB-T cards > (Viola Digitelmo1 and Technisat Moditel1) under development. > > How far is the progress in this project? Are there any usable (alpha) > drivers available and where are these to be found? [...] hi there. i'm still in the process of working out if its my buffering code or a bug in the (as far as i can see mask programmed) fpga used on the balutv card. unfortunatly the vendor says its no bug and cannot help further. but i got some docs and are willing to complete the driver as soon as i find the time. it comes down to this: the card has one 16bit register which is used to read out the hardware-fifo, 2 bytes at a time. so i should get 94 words, the first byte should be 0x47 (mpeg ts start) but i get 'something' which looks like the last byte from the previous ts-package and 0x47 in the second byte. thus the packages are one byte shifted to the right which is totally contrary to any docs and reasonable thinking. if nothing helps i propably have to read 2 packages before beeing able to submit one into the softdemux (needed because the hw can only filter 8 pids, no sections) and i didn't try this yet. to the process: the i2c works, tuning works, the demod locks, the fpga signals a valid ts. to be worked out: getting data into the computer you can download a old version here http://yamato.hyte.de/balutv/balutv_cs.diff but be warned that it propably only applies to the hg from end of june and needs some changes to work with current hg the docs i got are massively unsorted and sometimes are not consistant to itself so they propably will not help much. but i put all registerdefinitions i could find into the driver, so reading them and the comments is propably a good start. the pll code is copied from some other frontends and should be refactored to share the code (a tda8272 is used here together with a tda10046) please be aware that the driver is really not finished, touches a few things it does not really need to and spits out huge amounts of debug stuff, so it is only usable if you have a bit of a clue about hardware, dvb, and kerneldebugging. but if you are ready for such an adventure, feel free to play around with it and please report back if you get any further than me ;) if you really want to help, write me a mail. -- kind regards Joachim Steiger _______________________________________________ linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
