Hi Jurgen, Torbjörn, I've noticed that there is currently a small confusion about the firmware versions for the Si2168-A20 demodulator. This is used in the older versions of DVBSky T680C (TechnoTrend CT2-4650 CI) and DVBSky T980C (TechnoTrend CT2-4500 CI). The version 2.0.5 does not support PLP handling and seems to work very badly with the Linux driver - at least for me. Version 2.0.35 on the other hand seems to find all DVB-T/T2 channels for me just fine with both dvbv5-scan and w_scan (devices used for this test: TechnoTrend CT2-4650 CI and TechnoTrend CT2-4500 CI new version). Versions used: dvbv5-scan version 1.7.0 w_scan version 20150111 (compiled for DVB API 5.10) So if you are running these Si2168-A20 based devices, make sure you've got the firmware 2.0.35 that can be downloaded for example here: http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-A20/32e06713b33915f674bfb2c209beaea5/ Cheers, -olli On 20 February 2016 at 19:20, Jurgen Kramer <gtmkramer@xxxxxxxxx> wrote: > Hi, > > On Sat, 2016-02-20 at 16:57 +0100, Torbjorn Jansson wrote: >> i have tested your patch with my dvbsky dvb-t2 card. >> testing was done by compiling a custom kernel with your patch >> included. >> test was done against fedora 22 4.3.4-200 kernel >> >> with the patch included the CI slot is found. >> so there is some progress for sure >> ----- >> [ 10.189408] cx25840 11-0044: loaded v4l-cx23885-avcore-01.fw >> firmware >> (16382 bytes) >> [ 10.206683] cx23885_dvb_register() allocating 1 frontend(s) >> [ 10.207968] cx23885[0]: cx23885 based dvb card >> [ 10.224306] i2c i2c-10: Added multiplexed i2c bus 12 >> [ 10.225633] si2168 10-0064: Silicon Labs Si2168 successfully >> attached >> [ 10.243310] si2157 12-0060: Silicon Labs Si2147/2148/2157/2158 >> successfully attached >> [ 10.244560] DVB: registering new adapter (cx23885[0]) >> [ 10.245807] cx23885 0000:07:00.0: DVB: registering adapter 0 >> frontend >> 0 (Silicon Labs Si2168)... >> [ 10.417402] sp2 9-0040: CIMaX SP2 successfully attached >> [ 10.447120] DVBSky T980C MAC address: 00:17:42:54:09:85 >> [ 10.448844] cx23885_dev_checkrevision() Hardware revision = 0xa5 >> [ 10.450550] cx23885[0]/0: found at 0000:07:00.0, rev: 4, irq: 19, >> latency: 0, mmio: 0xf6e00000 >> >> later when tuning: >> >> [ 67.728109] si2168 10-0064: found a 'Silicon Labs Si2168-A20' >> [ 67.802203] si2168 10-0064: downloading firmware from file >> 'dvb-demod-si2168-a20-01.fw' >> [ 68.968336] si2168 10-0064: firmware version: 2.0.5 >> [ 68.977071] si2157 12-0060: found a 'Silicon Labs Si2158-A20' >> [ 69.961057] si2157 12-0060: downloading firmware from file >> 'dvb-tuner-si2158-a20-01.fw' >> [ 70.969094] si2157 12-0060: firmware version: 2.1.9 >> ---- >> >> but using dvbv5-scan to scan it doesn't find any channel. >> all i get is this: >> ---- >> Scanning frequency #1 770000000 >> (0x00) Signal= -114.00dBm >> Scanning frequency #2 754000000 >> (0x00) Signal= -27.00dBm C/N= 32.50dB >> Scanning frequency #3 546000000 >> (0x00) Signal= -25.00dBm C/N= 33.75dB >> Scanning frequency #4 650000000 >> (0x00) Signal= -18.00dBm C/N= 36.00dB >> Scanning frequency #5 522000000 >> (0x00) Signal= -28.00dBm C/N= 33.00dB >> ---- >> >> so something else is broken too. >> > I have been using the patches for a few days. So far everything works > great (using MythTV). Scanning with dvbv5_scan does indeed not work > (never did for me). w_scan works though. > > Can these patches please be included in the stable kernels ? > > Jurgen > > >> On 2016-02-16 21:20, Olli Salonen wrote: >> > Hi all, >> > >> > Found the issue and submitted a patch. >> > >> > The I2C buses for T980C/T2-4500CI were crossed when CI registration >> > was moved to its own function. >> > >> > Cheers, >> > -olli >> > >> > On 31 January 2016 at 10:55, Torbjorn Jansson >> > <torbjorn.jansson@xxxxxxxxxxxxxxxxxx> wrote: >> > > this ci problem is the reason i decided to buy the CT2-4650 usb >> > > based device >> > > instead. >> > > but the 4650 was a slightly newer revision needing a patch i >> > > submitted >> > > earlier. >> > > and also this 4650 device does not have auto switching between >> > > dvb-t and t2 >> > > like the dvbsky card have, so i also need an updated version of >> > > mythtv. >> > > >> > > my long term wish is to not have to patch things or build custom >> > > kernels or >> > > modules. >> > > so anything done to improve the dvbsky card or the 4650 is much >> > > appreciated. >> > > >> > > >> > > On 2016-01-28 20:42, Olli Salonen wrote: >> > > > >> > > > Hi Jürgen & Mauro, >> > > > >> > > > I did bisect this and it seems this rather big patch broke it: >> > > > >> > > > 2b0aac3011bc7a9db27791bed4978554263ef079 is the first bad >> > > > commit >> > > > commit 2b0aac3011bc7a9db27791bed4978554263ef079 >> > > > Author: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> >> > > > Date: Tue Dec 23 13:48:07 2014 -0200 >> > > > >> > > > [media] cx23885: move CI/MAC registration to a separate >> > > > function >> > > > >> > > > As reported by smatch: >> > > > drivers/media/pci/cx23885/cx23885-dvb.c:2080 >> > > > dvb_register() >> > > > Function too hairy. Giving up. >> > > > >> > > > This is indeed a too complex function, with lots of stuff >> > > > inside. >> > > > Breaking this into two functions makes it a little bit >> > > > less hairy. >> > > > >> > > > Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung >> > > > .com> >> > > > >> > > > It's getting a bit late, so I'll call it a day now and have a >> > > > look at >> > > > the patch to see what goes wrong there. >> > > > >> > > > Cheers, >> > > > -olli >> > > > >> > > > On 28 January 2016 at 20:57, Jurgen Kramer <gtmkramer@xxxxxxxxx >> > > > > wrote: >> > > > > >> > > > > Hi Olli, >> > > > > >> > > > > On Thu, 2016-01-28 at 19:26 +0200, Olli Salonen wrote: >> > > > > > >> > > > > > Hi Jürgen, >> > > > > > >> > > > > > Did you get anywhere with this? >> > > > > > >> > > > > > I have a clone of your card and was just starting to look >> > > > > > at this >> > > > > > issue. Kernel 3.19 seems to work ok, but 4.3 not. Did you >> > > > > > have any >> > > > > > time to try to pinpoint this more? >> > > > > >> > > > > No, unfortunately not. I have spend a few hours adding >> > > > > printk's but it >> > > > > did not get me any closer what causes the issue. This really >> > > > > needs >> > > > > investigation from someone who is more familiar with linux >> > > > > media. >> > > > > >> > > > > Last thing I tried was the latest (semi open) drivers from >> > > > > dvbsky on a >> > > > > 4.3 kernel. Here the CI and CAM registered successfully. >> > > > > >> > > > > Greetings, >> > > > > Jurgen >> > > > > >> > > > > > Cheers, >> > > > > > -olli >> > > > > > >> > > > > > On 12 September 2015 at 10:02, Jurgen Kramer <gtmkramer@xs4 >> > > > > > all.nl> >> > > > > > wrote: >> > > > > > > >> > > > > > > On Fri, 2015-09-11 at 22:01 +0200, Torbjorn Jansson >> > > > > > > wrote: >> > > > > > > > >> > > > > > > > On 2015-08-23 19:50, Jurgen Kramer wrote: >> > > > > > > > > >> > > > > > > > > >> > > > > > > > > On Sun, 2015-07-12 at 12:38 +0200, Jurgen Kramer >> > > > > > > > > wrote: >> > > > > > > > > > >> > > > > > > > > > I have been running a couple of DVBSky T980C's with >> > > > > > > > > > CIs with >> > > > > > > > > > success >> > > > > > > > > > using an older kernel (3.17.8) with media-build and >> > > > > > > > > > some >> > > > > > > > > > added patches >> > > > > > > > > > from the mailing list. >> > > > > > > > > > >> > > > > > > > > > I thought lets try a current 4.0 kernel to see if I >> > > > > > > > > > no longer >> > > > > > > > > > need to be >> > > > > > > > > > running a custom kernel. Everything works just fine >> > > > > > > > > > except >> > > > > > > > > > the CAM >> > > > > > > > > > module. I am seeing these: >> > > > > > > > > > >> > > > > > > > > > [ 456.574969] dvb_ca adapter 0: Invalid PC card >> > > > > > > > > > inserted :( >> > > > > > > > > > [ 456.626943] dvb_ca adapter 1: Invalid PC card >> > > > > > > > > > inserted :( >> > > > > > > > > > [ 456.666932] dvb_ca adapter 2: Invalid PC card >> > > > > > > > > > inserted :( >> > > > > > > > > > >> > > > > > > > > > The normal 'CAM detected and initialised' messages >> > > > > > > > > > to do show >> > > > > > > > > > up with >> > > > > > > > > > 4.0.8 >> > > > > > > > > > >> > > > > > > > > > I am not sure what changed in the recent kernels, >> > > > > > > > > > what is >> > > > > > > > > > needed to >> > > > > > > > > > debug this? >> > > > > > > > > > >> > > > > > > > > > Jurgen >> > > > > > > > > >> > > > > > > > > Retest. I've isolated one T980C on another PC with >> > > > > > > > > kernel >> > > > > > > > > 4.1.5, still the same 'Invalid PC card inserted :(' >> > > > > > > > > message. >> > > > > > > > > Even after installed today's media_build from git no >> > > > > > > > > improvement. >> > > > > > > > > >> > > > > > > > > Any hints where to start looking would be >> > > > > > > > > appreciated! >> > > > > > > > > >> > > > > > > > > cimax2.c|h do not seem to have changed. There are >> > > > > > > > > changes to >> > > > > > > > > dvb_ca_en50221.c >> > > > > > > > > >> > > > > > > > > Jurgen >> > > > > > > > > >> > > > > > > > >> > > > > > > > did you get it to work? >> > > > > > > >> > > > > > > >> > > > > > > No, it needs a thorough debug session. So far no one >> > > > > > > seems able to >> > > > > > > help... >> > > > > > > >> > > > > > > > i got a dvbsky T980C too for dvb-t2 reception and so >> > > > > > > > far the only >> > > > > > > > drivers that have worked at all is the ones from dvbsky >> > > > > > > > directly. >> > > > > > > > >> > > > > > > > i was very happy when i noticed that recent kernels >> > > > > > > > have support >> > > > > > > > for it >> > > > > > > > built in but unfortunately only the modules and >> > > > > > > > firmware loads >> > > > > > > > but then >> > > > > > > > nothing actually works. >> > > > > > > > i use mythtv and it complains a lot about the signal, >> > > > > > > > running >> > > > > > > > femon also >> > > > > > > > produces lots of errors. >> > > > > > > > >> > > > > > > > so i had to switch back to kernel 4.0.4 with mediabuild >> > > > > > > > from >> > > > > > > > dvbsky. >> > > > > > > > >> > > > > > > > if there were any other dvb-t2 card with ci support >> > > > > > > > that had >> > > > > > > > better >> > > > > > > > drivers i would change right away. >> > > > > > > > >> > > > > > > > one problem i have with the mediabuilt from dvbsky is >> > > > > > > > that at >> > > > > > > > boot the >> > > > > > > > cam never works and i have to first tune a channel, >> > > > > > > > then remove >> > > > > > > > and >> > > > > > > > reinstert the cam to get it to work. >> > > > > > > > without that nothing works. >> > > > > > > > >> > > > > > > > and finally a problem i ran into when i tried >> > > > > > > > mediabuilt from >> > > > > > > > linuxtv.org. >> > > > > > > > fedora uses kernel modules with .ko.xz extension so >> > > > > > > > when you >> > > > > > > > install the >> > > > > > > > mediabuilt modulels you get one modulename.ko and one >> > > > > > > > modulename.ko.xz >> > > > > > > > >> > > > > > > > before a make install from mediabuild overwrote the >> > > > > > > > needed >> > > > > > > > modules. >> > > > > > > > any advice on how to handle this now? >> > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > > >> > > > > > > -- >> > > > > > > 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 >> -- 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
