Am 25.01.2010 15:35, schrieb Mauro Carvalho Chehab: > Stefan Ringel wrote: > >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Hi Davin, >> I have a question. How are loaded the base firmware into xc3028, in >> once or in a split ? It's importent for TM6010, the USB-Analyzer said >> that it load it in once and then send a quitting reqeuest. >> > The way the original driver for tm6000/tm6010 does varies from firmware > version to firmware version. That part of the driver works fine for > both tm6000 and tm6010, with the devices I used here, with firmwares 1.e > and 2.7. However, on tm6000, it sends the firmware on packages with > up to 12 or 13 bytes, and it requires a delay before sending the next > packet, otherwise the tm6000 hangs. > > Another problem is that the firmware load may fail (due to the bad > implementation of the i2c on tm6000/tm6010). So, the code should ideally > check if the firmware were loaded, by reading the firmware version at the > end. However, reading from i2c is very problematic, since it sometimes > read from the wrong place. On the tests I did here, the original drivers > weren't reading back the firmware version, probably due to this bug. > My hybrid-stick with tm6010 chip use a special request ( requests 0x32 + 0x33) for quitting i2c transfer. so it can write correct the firmware and can read tuner number and versions. Actually I tested next patch for sync between tuner and demodulator and I have data by scanning digital channels (one time), but other test dos not data. I've test firmware load 13, 64 and 3500 bytes and all works. Cheers, Stefan Ringel -- Stefan Ringel <stefan.ringel@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
