diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/dvb/bt8xx.txt | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'Documentation/dvb/bt8xx.txt')
-rw-r--r-- | Documentation/dvb/bt8xx.txt | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/Documentation/dvb/bt8xx.txt b/Documentation/dvb/bt8xx.txt new file mode 100644 index 000000000000..e3cacf4f2345 --- /dev/null +++ b/Documentation/dvb/bt8xx.txt @@ -0,0 +1,90 @@ +How to get the Nebula, PCTV and Twinhan DST cards working +========================================================= + +This class of cards has a bt878a as the PCI interface, and +require the bttv driver. + +Please pay close attention to the warning about the bttv module +options below for the DST card. + +1) General informations +======================= + +These drivers require the bttv driver to provide the means to access +the i2c bus and the gpio pins of the bt8xx chipset. + +Because of this, you need to enable +"Device drivers" => "Multimedia devices" + => "Video For Linux" => "BT848 Video For Linux" + +2) Loading Modules +================== + +In general you need to load the bttv driver, which will handle the gpio and +i2c communication for us. Next you need the common dvb-bt8xx device driver +and one frontend driver. + +The bttv driver will HANG YOUR SYSTEM IF YOU DO NOT SPECIFY THE CORRECT +CARD ID! + +(If you don't get your card running and you suspect that the card id you're +using is wrong, have a look at "bttv-cards.c" for a list of possible card +ids.) + +Pay attention to failures when you load the frontend drivers +(e.g. dmesg, /var/log/messages). + +3a) Nebula / Pinnacle PCTV +-------------------------- + + $ modprobe bttv i2c_hw=1 card=0x68 + $ modprobe dvb-bt8xx + +For Nebula cards use the "nxt6000" frontend driver: + $ modprobe nxt6000 + +For Pinnacle PCTV cards use the "cx24110" frontend driver: + $ modprobe cx24110 + +3b) TwinHan +----------- + + $ modprobe bttv i2c_hw=1 card=0x71 + $ modprobe dvb-bt8xx + $ modprobe dst + +The value 0x71 will override the PCI type detection for dvb-bt8xx, which +is necessary for TwinHan cards.# + +If you're having an older card (blue color circuit) and card=0x71 locks your +machine, try using 0x68, too. If that does not work, ask on the DVB mailing list. + +The DST module takes a couple of useful parameters, in case the +dst drivers fails to detect your type of card correctly. + +dst_type takes values 0 (satellite), 1 (terrestial TV), 2 (cable). + +dst_type_flags takes bit combined values: +1 = new tuner type packets. You can use this if your card is detected + and you have debug and you continually see the tuner packets not + working (make sure not a basic problem like dish alignment etc.) + +2 = TS 204. If your card tunes OK, but the picture is terrible, seemingly + breaking up in one half continually, and crc fails a lot, then + this is worth a try (or trying to turn off) + +4 = has symdiv. Some cards, mostly without new tuner packets, require + a symbol division algorithm. Doesn't apply to terrestial TV. + +You can also specify a value to have the autodetected values turned off +(e.g. 0). The autodected values are determined bythe cards 'response +string' which you can see in your logs e.g. + +dst_check_ci: recognize DST-MOT + +or + +dst_check_ci: unable to recognize DSTXCI or STXCI + +-- +Authors: Richard Walker, Jamie Honan, Michael Hunold |