[SOLVED] Le Potato (S905X), adamg's 8.90.3 build, WinTV dualHD near success - what's missing?

Hauke · February 16, 2018 at 10:41 PM

Hi all,

I've a WinTV Hauppauge dualHD DVB-T/T2/C USB card, and I set it up under Raspberry Pi/xbian/tvheadend successfully, could scan DVB-C and DVB-T2 and watch TV - i.e. card works in principle (only one tuner, but that's OK at the moment). Now I attached the same card to the Libre Computer Le Potato, and have only partial success. From dmesg I see that even both tuners are recognized, but they do not show up as devices in /dev - there isn't even a /dev/dvb folder! dmesg looks very similar to Raspberry/xbian, with three notable exceptions: First, the i2c-bus is not added on Le Potato. Second, potentially as a result of the first, the firmware file dvb-demod-si2168-b40-01.fw, although present, is not loaded. Third: There's a warning that this is a downport of the driver, which is originally created for kernel v4, not v3. Hauppauge itself claims support only for v4. Of course as a result of all this tvheadend does not see any tuner. Still, it looks like I'm almost there - anyone can help me do the final step?

More details -

I did:

Install LibreELEC-LePotato.arm-8.90.3 from ~~kszaq~~ adamg with updated kernel 3.14.29
Added the LibeELEC Modules config (or it was already there; dunno anymore...)
Started the latter and selected the WinTV Hauppauge DVB-drivers
Installed tvheadend 4.3 and the HTSP client
At some point tried to put above's firmware file into /usr/lib/kernel-overlays/base/lib/firmware/updates

Here's the dmesg output (Le Potato):

Code

[   14.416196@3] em28xx 1-1.1:1.0: EEPROM ID = 26 00 01 00, EEPROM hash = 0x16e6c5c8
[   14.416208@3] em28xx 1-1.1:1.0: EEPROM info:
[   14.416213@3] em28xx 1-1.1:1.0:      microcode start address = 0x0004, boot configuration = 0x01
[   14.422833@0] em28xx 1-1.1:1.0:      AC97 audio (5 sample rates)
[   14.422846@0] em28xx 1-1.1:1.0:      500mA max power
[   14.422852@0] em28xx 1-1.1:1.0:      Table at offset 0x27, strings=0x0e6a, 0x1888, 0x087e
[   14.423650@3] em28xx 1-1.1:1.0: Identified as Hauppauge WinTV-dualHD DVB (card=99)
[   14.426389@3] tveeprom: Hauppauge model 204109, rev B3I6, serial# 13886631
[   14.426398@3] tveeprom: tuner model is SiLabs Si2157 (idx 186, type 4)
[   14.426403@3] tveeprom: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc)
[   14.426407@3] tveeprom: audio processor is None (idx 0)
[   14.426411@3] tveeprom: has no radio, has IR receiver, has no IR transmitter
[   14.426422@3] em28xx 1-1.1:1.0: dvb set to isoc mode.
[   14.426498@3] em28xx 1-1.1:1.0: chip ID is em28174
[   14.826656@0] libphy: stmmac-0:08 - Link is Up - 100/Full
[   15.626378@3] em28xx 1-1.1:1.0: EEPROM ID = 26 00 01 00, EEPROM hash = 0x16e6c5c8
[   15.626389@3] em28xx 1-1.1:1.0: EEPROM info:
[   15.626395@3] em28xx 1-1.1:1.0:      microcode start address = 0x0004, boot configuration = 0x01
[   15.634435@3] em28xx 1-1.1:1.0:      AC97 audio (5 sample rates)
[   15.634450@3] em28xx 1-1.1:1.0:      500mA max power
[   15.634457@3] em28xx 1-1.1:1.0:      Table at offset 0x27, strings=0x0e6a, 0x1888, 0x087e
[   15.635644@3] em28xx 1-1.1:1.0: Identified as Hauppauge WinTV-dualHD DVB (card=99)
[   15.642480@3] tveeprom: Hauppauge model 204109, rev B3I6, serial# 13886631
[   15.642494@3] tveeprom: tuner model is SiLabs Si2157 (idx 186, type 4)
[   15.642499@3] tveeprom: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc)
[   15.642503@3] tveeprom: audio processor is None (idx 0)
[   15.642507@3] tveeprom: has no radio, has IR receiver, has no IR transmitter
[   15.642518@3] em28xx 1-1.1:1.0: dvb ts2 set to isoc mode.
[   15.843930@3] usbcore: registered new interface driver em28xx
[   15.847501@2] WARNING: You are using an experimental version of the media stack.
[   15.847501@2]        As the driver is backported to an older kernel, it doesn't offer
[   15.847501@2]        enough quality for its usage in production.
[   15.847501@2]        Use it with care.
[   15.847501@2] Latest git patches (needed if you report a bug to linux-media@vger.kernel.org):
[   15.847501@2]        b32a2b42f76cdfd06b4b58a1ddf987ba329ae34e media: ddbridge: improve error handling logic on fe attach failures
[   15.847501@2]        6738d3bbab999d7d9d77a185d62bd146d9a257f2 media: drivers: media: remove duplicate includes
[   15.847501@2]        9ed785a926843ca5a954d3324082afa2b96f5824 media: platform: sti: Adopt SPDX identifier
[   15.848721@2] em28xx 1-1.1:1.0: Binding DVB extension
[   15.860406@2] em28xx 1-1.1:1.0: Binding DVB extension
[   15.864730@3] em28xx: Registered (Em28xx dvb Extension) extension
[   15.868624@0] em28xx 1-1.1:1.0: Registering input extension
[   15.899572@0] Registered IR keymap rc-hauppauge
[   15.899972@2] rc rc1: 1-1.1:1.0 IR as /devices/c9000000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1.1/1-1.1:1.0/rc/rc1
[   15.900190@2] input: 1-1.1:1.0 IR as /devices/c9000000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1.1/1-1.1:1.0/rc/rc1/input3
[   15.900445@2] em28xx 1-1.1:1.0: Input extension successfully initialized
[   15.900459@2] em28xx 1-1.1:1.0: Remote control support is not available for this card.
[   15.900463@2] em28xx: Registered (Em28xx Input Extension) extension

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For comparison, here's dmesg from the xbian/Raspberry:

Code

[   14.844653] em28174 #0: EEPROM ID = 26 00 01 00, EEPROM hash = 0x16e6c5c8
[   14.844668] em28174 #0: EEPROM info:
[   14.844679] em28174 #0:      microcode start address = 0x0004, boot configuration = 0x01
[   14.852600] em28174 #0:      AC97 audio (5 sample rates)
[   14.852615] em28174 #0:      500mA max power
[   14.852632] em28174 #0:      Table at offset 0x27, strings=0x0e6a, 0x1888, 0x087e
[   14.853068] em28174 #0: Identified as Hauppauge WinTV-dualHD DVB (card=99)
[   14.860852] tveeprom 4-0050: Hauppauge model 204109, rev B3I6, serial# 13886631
[   14.860873] tveeprom 4-0050: tuner model is SiLabs Si2157 (idx 186, type 4)
[   14.860887] tveeprom 4-0050: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc)
[   14.860900] tveeprom 4-0050: audio processor is None (idx 0)
[   14.860912] tveeprom 4-0050: has no radio, has IR receiver, has no IR transmitter
[   14.860924] em28174 #0: dvb set to isoc mode.
[   14.861601] usbcore: registered new interface driver em28xx
[   14.862760] snd-rpi-cirrus soc:sound: ASoC: CODEC DAI wm5102-aif1 not registered - will retry
[   14.907896] em28174 #0: Binding DVB extension
[   15.002024] i2c i2c-4: Added multiplexed i2c bus 5
[   15.002057] si2168 4-0064: Silicon Labs Si2168-B40 successfully identified
[   15.002076] si2168 4-0064: firmware version: B 4.0.2
[   15.002639] snd-rpi-cirrus soc:sound: ASoC: CODEC DAI wm5102-aif1 not registered - will retry
[   15.043260] si2157 5-0060: Silicon Labs Si2147/2148/2157/2158 successfully attached
[   15.043363] DVB: registering new adapter (em28174 #0)
[   15.043404] usb 1-1.5: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)...
[   15.044164] snd-rpi-cirrus soc:sound: ASoC: CODEC DAI wm5102-aif1 not registered - will retry
[   15.047208] em28174 #0: DVB extension successfully initialized
[   15.047229] em28xx: Registered (Em28xx dvb Extension) extension
[   15.095899] em28174 #0: Registering input extension
[   15.253160] Registered IR keymap rc-hauppauge
[   15.254164] input: em28xx IR (em28174 #0) as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/rc/rc0/input0
[   15.254765] rc rc0: em28xx IR (em28174 #0) as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/rc/rc0
[   15.262050] em28174 #0: Input extension successfully initalized
[   15.262071] em28xx: Registered (Em28xx Input Extension) extension
[   16.509324] si2168 4-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
[   17.024833] si2168 4-0064: firmware version: B 4.0.11
[   17.035803] si2157 5-0060: found a 'Silicon Labs Si2157-A30'
[   17.087464] si2157 5-0060: firmware version: 3.0.5
[   17.087617] usb 1-1.5: DVB: adapter 0 frontend 0 frequency 0 out of range (42000000..870000000)

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EDIT here's also lsmod from the Le Potato:

Code

Module                  Size  Used by
xt_nat                  2015  1
xt_tcpudp               3293  3
veth                    5005  0
ipt_MASQUERADE          2256  2
nf_conntrack_netlink    20028  0
nfnetlink               5227  2 nf_conntrack_netlink
iptable_nat             3308  1
nf_conntrack_ipv4       9101  2
nf_defrag_ipv4          1457  1 nf_conntrack_ipv4
nf_nat_ipv4             3582  1 iptable_nat
xt_addrtype             2899  2
iptable_filter          1478  1
ip_tables              17688  2 iptable_filter,iptable_nat
xt_conntrack            3247  1
x_tables               18411  7 ip_tables,xt_tcpudp,ipt_MASQUERADE,xt_conntrack,xt_nat,iptable_filter,xt_addrtype
nf_nat                 13203  4 ipt_MASQUERADE,nf_nat_ipv4,xt_nat,iptable_nat
nf_conntrack           60627  7 ipt_MASQUERADE,nf_nat,nf_nat_ipv4,xt_conntrack,nf_conntrack_netlink,iptable_nat,nf_conntrack_ipv4
bridge                 96995  0
stp                     1680  1 bridge
llc                     3773  2 stp,bridge
rc_hauppauge            2193  0
em28xx_rc               8362  0
em28xx_dvb             22440  0
dvb_core              103890  1 em28xx_dvb
8021q                  19007  0
ir_rc6_decoder          3557  0
mali                  192729  5
em28xx                 71682  2 em28xx_dvb,em28xx_rc
tveeprom               13844  1 em28xx
v4l2_common             4001  1 em28xx
ir_nec_decoder          2429  0
ipheth                  6743  0
wifi_dummy               806  0
ir_lirc_codec           4209  0
lirc_dev                7264  2 ir_lirc_codec
meson_ir                3997  0
rc_core                23955  9 lirc_dev,meson_ir,ir_lirc_codec,rc_hauppauge,ir_nec_decoder,ir_rc6_decoder,em28xx_rc
amlvideodri            12674  0
videobuf_res            5378  1 amlvideodri
videobuf_core          16643  2 amlvideodri,videobuf_res
videodev              150841  2 amlvideodri,v4l2_common
media                  25461  3 em28xx,videodev,dvb_core
dwc_otg               233217  0
fbcon                  38031  0
bitblit                 4468  1 fbcon
softcursor              1168  1 bitblit
font                    7327  1 fbcon

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Would be glad to get this up'n'running...

kszaq: Any chance to go for kernel v4?

Thanks!

Hauke

**kszaq** · February 17, 2018 at 7:29 AM

I have never released any 8.9 build, please correct that.
Mainline kernel is possible but without hardware video decoding.

Hauke · February 17, 2018 at 11:39 AM

Hi kszaq,

sorry, indeed I did not look properly, I took admag's image, this is the one linked by Libre Computer. Honestly, I was not aware that there are actually at least three community builds! It's good to learn this - will try out the other builds and see if i'm more successful.

GDPR-2: Sorry for denying you the credit due Thanks for your work!

kszaq: With regard to the kernel I understand that it comes from amlogic directly - but is it not that there are blobs for their GPU etc., and you could build other kernels around? Sorry for asking stupid questions - I've no experience with kernel development...

Cheers

Hauke

Hauke · February 17, 2018 at 12:13 PM

Update: just tried the LibreELEC-S905.arm-8.2-8.2.3.1-LePotato from kszaq (this time it's right ), and lo and behold, the WinTV is working - as it looks only one tuner, but still, better than nothing. Indeed it seems to be the i2c bus that somehow goes AWOL with adamg's build.

Here's dmesg from kszaq's image:

Code

[   15.124638@3] em28xx 1-1.1:1.0: EEPROM ID = 26 00 01 00, EEPROM hash = 0x16e6c5c8
[   15.124650@3] em28xx 1-1.1:1.0: EEPROM info:
[   15.124656@3] em28xx 1-1.1:1.0:      microcode start address = 0x0004, boot configuration = 0x01
[   15.130976@3] em28xx 1-1.1:1.0:      AC97 audio (5 sample rates)
[   15.130989@3] em28xx 1-1.1:1.0:      500mA max power
[   15.130995@3] em28xx 1-1.1:1.0:      Table at offset 0x27, strings=0x0e6a, 0x1888, 0x087e
[   15.131701@3] em28xx 1-1.1:1.0: Identified as Hauppauge WinTV-dualHD DVB (card=99)
[   15.134597@3] tveeprom: Hauppauge model 204109, rev B3I6, serial# 13886631
[   15.134608@3] tveeprom: tuner model is SiLabs Si2157 (idx 186, type 4)
[   15.134613@3] tveeprom: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc)
[   15.134617@3] tveeprom: audio processor is None (idx 0)
[   15.134621@3] tveeprom: has no radio, has IR receiver, has no IR transmitter
[   15.134630@3] em28xx 1-1.1:1.0: dvb set to isoc mode.
[   15.135531@3] usbcore: registered new interface driver em28xx
[   15.148868@3] WARNING: You are using an experimental version of the media stack.
[   15.148868@3]        As the driver is backported to an older kernel, it doesn't offer
[   15.148868@3]        enough quality for its usage in production.
[   15.148868@3]        Use it with care.
[   15.148868@3] Latest git patches (needed if you report a bug to linux-media@vger.kernel.org):
[   15.148868@3]        a83dbc951051ded0ec728f65cc918b7320600b55 Remove unused stv6120 headers.
[   15.152386@3] em28xx 1-1.1:1.0: Binding DVB extension
[   15.168159@3] i2c i2c-2: Added multiplexed i2c bus 3
[   15.168173@3] si2168 2-0064: Silicon Labs Si2168-B40 successfully identified
[   15.168179@3] si2168 2-0064: firmware version: B 4.0.2
[   15.174594@3] si2157 3-0060: Silicon Labs Si2147/2148/2157/2158 successfully attached
[   15.174624@3] dvbdev: DVB: registering new adapter (1-1.1:1.0)
[   15.174634@3] em28xx 1-1.1:1.0: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)...
[   15.174647@3] dvbdev: dvb_create_media_entity: media entity 'Silicon Labs Si2168' registered.
[   15.176634@3] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[   15.183346@3] em28xx 1-1.1:1.0: DVB extension successfully initialized
[   15.183361@3] em28xx: Registered (Em28xx dvb Extension) extension
[   15.190426@0] em28xx 1-1.1:1.0: Registering input extension
[   15.191545@0] rc rc1: 1-1.1:1.0 IR as /devices/c9000000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1.1/1-1.1:1.0/rc/rc1
[   15.217768@0] Registered IR keymap rc-hauppauge
[   15.218236@0] input: 1-1.1:1.0 IR as /devices/c9000000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1.1/1-1.1:1.0/rc/rc1/input3
[   15.218539@0] em28xx 1-1.1:1.0: Input extension successfully initalized
[   15.218550@0] em28xx: Registered (Em28xx Input Extension) extension

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**chewitt** · February 17, 2018 at 12:22 PM Official Post

Amlogic does not provide a V4L2 driver for any of their current hardware. In the long-term they will probably write one for their next generation AX chips but I doubt they will ever spend $$ to create one for the current GX series. To support GX era chips the focus will be an FFmpeg module which allows Kodi to handle rendering while FFmpeg deals with decoding - this is how the Rockchip RKMPP pipeline is being implemented.

At the moment i'm experimenting with a WeTek Hub on 4.14 kernel, but mostly to find/fix build system quirks and ensure the mainline device trees are correct. I can look at the Kodi GUI, but there is only software decoding, which isn't practical for real-world use.

Hauke · February 17, 2018 at 7:40 PM

Played around a bit with kszaq's image: Channel scan works, but as soon as I watch a DVB-T2 HVEC channel (I have no others ), tvheadend drowns in continuity errors and image and sound are stuttering or even breaking down. On Raspberry Rev 2 with kernel 4.something/xbian it worked flawlessly. When I use the Raspberry for the card and connect the HTS PVR client on Le Potato to it, I can watch the channel with not problems. So, it is not a problem of hardware acceleration of HVEC, i'd say. It's either the experimaltal downport of the Hauppauge driver, or the USB of Le Potato is not performing.

Anyone an idea how to figure it out?

Can hardly believe it's USB - USB can hardly be worse as compared to the Raspberry. Honestly, I was quite surprised that it worked so well on the Raspberry.

Hauke · February 17, 2018 at 7:44 PM

chewitt: Oh, that doesn't sound too promising... I was not aware that amlogic is that unsupportive... Thanks for explaining.

Hauke · February 19, 2018 at 10:31 PM

Quick update: I finally figured out that picking the "hauppauge" drivers is not the best idea - I picked now "DVB drivers for TBS (CrazyCat)", and both tuners are recognized now - happy me! Thought "TBS" is for "TurboSight" DVB-cards - a little confusing to me.

Just running a scan, lets see how good it works.

EDIT: Scan's through, watching TV works nicely and stable, both tuners can be used - perfect! Thanks to crazycat for this!

**crazycat** · February 20, 2018 at 1:17 AM

"Officia V4L DVB drivers + some specific/experimental for TBS, Geniatech and etc" This more correct definition

**afl1** · February 20, 2018 at 9:36 PM

Quote from Hauke

Quick update: I finally figured out that picking the "hauppauge" drivers is not the best idea - I picked now "DVB drivers for TBS (CrazyCat)", and both tuners are recognized now - happy me! Thought "TBS" is for "TurboSight" DVB-cards - a little confusing to me.

Just running a scan, lets see how good it works.

EDIT: Scan's through, watching TV works nicely and stable, both tuners can be used - perfect! Thanks to crazycat for this!

The reason why you see both tuner is patch added by me to crazycat driver addons.

http://github.com/LibreELEC-AML/…r_support.patch

Hauke · February 20, 2018 at 10:07 PM

For me it works rock solid as of now - so thanks for the great work! I'll see how stable it is long term with doing recordings etc.

**chewitt** · February 21, 2018 at 1:59 AM Official Post

Quote from Hauke

Oh, that doesn't sound too promising... I was not aware that amlogic is that unsupportive... Thanks for explaining.

Amlogic aren't at the front of the charge towards V4L2 but they aren't last in the race either and I wouldn't call them unsupportive. There is ongoing effort from them, but as is often the case, their "open source" development is done behind closed doors and even when you have direct contact with Engineering staff (as we do) it can be difficult to track where things are and things often just appear without announcement.