August DVB-T210

derp derp · 2014-02-11T22:48:40+00:00

Hi. Was wondering if this was compatible with tvheadend as there's not much information from users about this device. Does anyone have one? Is it working wel...

Gavin Ridgway

I've taken a quick look and it's not quite the same - it is a copy of media_build from March 2015. However, 'cxusb' (the Connexant USB driver) has had the original T230 properties and attach functions commented out.

They've been replaced by code tagged with 'rmidt2' (whatever this means). This appears to setup an si2168 demod and a si2148 tuner. These drivers are not the same ones as those normally found in 'media_build'. The device USB PID/VID codes used are the same as for an original T230 (when warm), but the code indicates that the PID is 0xc687 when cold. It would appear that the FX2 loads a firmware file 'dvb-usb-rmtd-t2.fw' (which I can't locate in the archive) and this is presumably responsible for the VID change when warm.

If this 'rmidt2 device' is a T230 Rev C then I would guess that the VID has changed to 0xc689 on the final production model and the firmware is now embedded in the FX2 bridge.

I guess now it all comes down to why the si2148 driver is used and how this differs to the si2157 driver normally found in 'media_build'. We need to make si2157 driver work for this device - which I think is where Crazycat was 12 days ago by his last post.

Cheers.

P.S. lord slash: You never did say where you got the device from. It might be useful to know as the more of us with one, the more likely we are to discover a solution.

Olli Salonen

The si2157.c header says: "Silicon Labs Si2146/2147/2148/2157/2158 silicon tuner driver"

Si2148 is already supported. However, it might be a different version of the tuner. There are 2 things that would make it probably a lot easier to make a driver for this device:

- Open the case and have a look at the chips used in the device (there should be something like "2168 40" for Si2168-B40 chip for example).

- Install the Windows drivers the manufacturer provides and capture the USB bus with a software like "USBlyzer" when you plug in the device and tune to a channel.

lord slash

sorry I thought I posted the link. I bought it here: http://www.ebay.it/itm/GENIATECH-MyGica-USB-TV-Stick-T230-DVB-T2-DVB-T-DVB-C-Tuner-for-Laptop-PC-/162135041930

I captured the USB bus with USBLyzer as requested, in attachment you can find the HTML report. I will open the stick and take a picture later.
If there's something else that I can do let me know!

Olli Salonen

Thanks for the capture, but it looks like you had the stream running already when the capture was started. In other words, we're missing the important initialization sequence. Do it this way:

- unplug the device
- open USBlyzer
- make sure the option Capture -> Capture hot-plugged is enabled
- start capture
- plug in the device
- start a program to watch TV.

- as soon as you get the picture, stop the capture (we don't need more than 1 second of captured TV stream, it just keeps filling the trace)

Send the capture file over.

lord slash

ok this time I followed the procedure you mentioned, in attachment the report

Olli Salonen

Hi,

The second attachment contains the s same trace as the first attachment. :)

lord slash

for some reasons i cannot save the ulz file, but the html file that I attached was the right one.. I will attach it again.. is it enough or do you need the ulz file?

Olli Salonen

That report is fine. I can now tell that the device contains the following two components:

Tuner (I2C address 0x60): Si2141-A10

Demodulator (I2C address 0x64): Si2168-D60

There's also firmware loaded into the Si2141. Otherwise it looks like it could work with the si2157 driver.

It'd be easy to add support for this device, if I had the device. Maybe CrazyCat can do it as he seems to have the device?

Crazy Cat

yes, today CrazyCat receive this device :) Some debug output from windows BDA driver on init:
> CSI2168_SI2141Tuner::~CSI2168_SI2141Tuner
> Driver Build: Jul 13 2016 , 02:47:44
> CSI2168BDemod Build: Jun 13 2016 , 01:04:25
> CSI2168_SI2141Tuner::CSI2168_SI2141Tuner()
> CSI2168BDemod::initHardware
> CSI2168BDemod::initDemodHardware
> Si2183_L2_EVB_SW_Init starting...
>
> --------------------------------------
> Demod Si2183 at 0x00
> Demod Source code V0.2.1.0
> TER clock from TER Tuner (24 MHz)
> TER clock input CLKIO
> FEF mode 'SLOW NORMAL AGC'
> --------------------------------------
>
> Si2183_L2_EVB_SW_Init complete
> dvb_i2c_WriteRegister
> CSI2168BDemod::initHardware
> CSI2168BDemod::initDemodHardware : hw_init is already running
> dvb_i2c_WriteRegister -------[c8]<<<<<<<<--c0 0d 01..(3)
> dvb_i2c_ReadRegister
> dvb_i2c_ReadRegister -------[c8]-->>>>>>>>80
> DEMOD Communication OK
> dvb_i2c_WriteRegister
> dvb_i2c_WriteRegister -------[c8]<<<<<<<<--c0 0d 00..(3)
> dvb_i2c_WriteRegister
> dvb_i2c_WriteRegister -------[c8]<<<<<<<<--c0 0d 01..(3)
> CSI2168BDemod::initDemodHardware()
> Si2141_Init starting...
> dvb_i2c_ReadRegister
> dvb_i2c_ReadRegister -------[c0]-->>>>>>>>fe
> Si2141 RESET_HW
>
> dvb_i2c_WriteRegister
> dvb_i2c_WriteRegister -------[c0]<<<<<<<<--c0..(4)
> dvb_i2c_ReadRegister
> dvb_i2c_ReadRegister -------[c0]-->>>>>>>>fe
> Si2141 POWER_UP
>
> dvb_i2c_WriteRegister
> dvb_i2c_WriteRegister -------[c0]<<<<<<<<--c0..(10)
> dvb_i2c_ReadRegister
> dvb_i2c_ReadRegister -------[c0]-->>>>>>>>80
> dvb_i2c_ReadRegister
> dvb_i2c_ReadRegister -------[c0]-->>>>>>>>80
> Si2141 WAKE_UP
>
> dvb_i2c_WriteRegister
> dvb_i2c_WriteRegister -------[c0]<<<<<<<<--c0..(7)
> dvb_i2c_ReadRegister
> dvb_i2c_ReadRegister -------[c0]-->>>>>>>>80
> Si2141 PART_INFO
>
> dvb_i2c_WriteRegister
> dvb_i2c_WriteRegister -------[c0]<<<<<<<<--02..(1)
> dvb_i2c_ReadRegister
> dvb_i2c_ReadRegister -------[c0]-->>>>>>>>80..(14)
> chiprev 1
> part Si2141
> romid 97
> pmajor 49
> pminor 48
> pbuild 1
> pmajor '1'
> pminor '0'
> Full Info 'Si2141-A10 ROM61 NVM1_0b1'
>
>
> Si2141_LoadFirmware_16 starting...
> Si2141_LoadFirmware_16 nbLines 98
>

Crazy Cat

btw latest PadTV HD 2.1.7.4beta for Android (from Google Play market) also not support T230C :)

lord slash

Hi CrazyCat! I see on GooglePlay Market that the last version of PadTV HD is 2.1.7.7 updated on the 20th of September.
Moreover on this AliExpress page https://www.aliexpress.com/store/product/DVB-T2-receiver-Geniatech-T230-DVB-T2-DVB-T-USB-TV-Stick/1263392_1857742736.html?spm=2114.12010108.0.99.v5IdTt it's mentioned that the 230C supports Android: "Android OS 4.1 or higher (only usable with Geniatech Android Box & firmware)"
Anyway did you give a look at the media_build_for_14.10.tar.bz2 driver that the device producer sent me? Let me know if there's something that I can ask them because I am in contact with them and they seem kind of helpful

Crazy Cat

lord slash wrote:

> Anyway did you give a look at the media_build_for_14.10.tar.bz2 driver that the device producer sent me? Let me know if there's something that I can ask them because I am in contact with them and they seem kind of helpful

This is old sources, for T230 (0xc6887/0xc688) and X9330 (VID = 0xd230 - 0xd233)

PadTV HD 2.1.7.7 support T230C :)

lord slash

cool! does this mean that you are getting closer to the support of the T230C for linux?

Crazy Cat

please check T230C support

my linux_media using my media_build @git clone https://bitbucket.org/CrazyCat/media_build cd media_build ./build --main-git sudo make install

required tuner/demod firmwares attached and also included in dvb-firmwares.tar.bz2 @ my media_build

P.S. Look like my T230C sample now have brocken LNA before tuner and can't lock anything from my outdoor ant for low-power transmitter (500W and 40Km dist).

lord slash

oh that's great! Now I am trying to figure out how to install it on my RaspberryPi 2 with OpenElec (the file-system is read only) so any help would be appreciated!

lord slash

I ended up installing it on my Raspbian system: I installed the media build from CrazyCat and the Stick is finally recognized by my Linux! I still do have a problem: TVHeadend doesn't detect my T230C stick.
Let's start with dmesg:

[    7.376640] dvb-usb: found a 'Mygica T230C DVB-T/T2/C' in warm state.
[    7.624033] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[    7.624255] DVB: registering new adapter (Mygica T230C DVB-T/T2/C)
[    7.624290] usb 1-1.5: media controller created
[    7.632782] dvb_create_media_entity: media entity 'dvb-demux' registered.
[    7.664157] i2c i2c-3: Added multiplexed i2c bus 4
[    7.664192] si2168 3-0064: Silicon Labs Si2168-D60 successfully identified
[    7.664211] si2168 3-0064: firmware version: D 6.0.1
[    7.671857] dvb-usb: no frontend was attached by 'Mygica T230C DVB-T/T2/C'
[    7.672603] input: IR-receiver inside an USB DVB receiver as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/input/input0
[    7.672640] dvb-usb: schedule remote query interval to 100 msecs.
[    7.672770] dvb-usb: Mygica T230C DVB-T/T2/C successfully initialized and connected.
[    7.672964] usbcore: registered new interface driver dvb_usb_cxusb
[    8.499721] Adding 102396k swap on /var/swap.  Priority:-1 extents:1 across:102396k SSFS
[    8.512050] cfg80211: World regulatory domain updated:
[    8.512091] cfg80211:  DFS Master region: unset
[    8.512105] cfg80211:   (start_freq - end_freq

bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 8.512133] cfg80211: (2402000 KHz - 2472000 KHz

 40000 KHz), (N/A, 2000 mBm), (N/A)
[    8.512161] cfg80211:   (2457000 KHz - 2482000 KHz

40000 KHz), (N/A, 2000 mBm), (N/A)
[ 8.512186] cfg80211: (2474000 KHz - 2494000 KHz

 20000 KHz), (N/A, 2000 mBm), (N/A)
[    8.512213] cfg80211:   (5170000 KHz - 5250000 KHz

80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 8.512227] cfg80211: (5250000 KHz - 5330000 KHz

 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[    8.512241] cfg80211:   (5490000 KHz - 5730000 KHz

160000 KHz), (N/A, 2000 mBm), (0 s)
[ 8.512252] cfg80211: (5735000 KHz - 5835000 KHz

 80000 KHz), (N/A, 2000 mBm), (N/A)
[    8.512285] cfg80211:   (57240000 KHz - 63720000 KHz

2160000 KHz), (N/A, 0 mBm), (N/A)

but then when i go on the web interface of TVHeadend Configuration-DVB Inputs-TV Adapters the list is empty :-( What am I missing now? By the way, HTS Tvheadend 4.0.8~jessie

Thanks again!

Crazy Cat

[ 7.664192] si2168 3-0064: Silicon Labs Si2168-D60 successfully identified
[ 7.664211] si2168 3-0064: firmware version: D 6.0.1
[ 7.671857] dvb-usb: no frontend was attached by 'Mygica T230C DVB-T/T2/C'

oops, minor bug :) just reconnect device or rebuild driver with fix
https://github.com/crazycat69/linux_media/commit/02fbba7099437238ac617423fdff7e341ee2ce3d

lord slash

thanks, I didn't rebuild with the fix, I only reconnected the device and now the stick is recognized (Silicon Labs Si2168 : DVB-C #0 and Silicon Labs Si2168 : DVB-T #0 ).

DVB-T services are detected, but no DVB-T2. I am following this guide https://tvheadend.org/d/3877-howto-setup-german-dvb-t2-beta-channels:

I have created a new network named DVB-T2 for this purpose and assigned it to my both receiver. Afterwards, I created manually a new mux with the following data: frequency (Hz): 650000000 Bandwidth: 8Mhz Constellation: QAM/AUTO Delivery System: DVBT2 I left any other value by default (or AUTO). I went back to Networks and selected the new network "DVB-T2" and clicked on "Force Scan".

but the scan result is always "fail". I tried to activate the debugging logs but it doesn't write anything.

What am I doing wrong this time?

Edit: I compiled the TVHeadend 4.1 but i get the same result.. (HTS Tvheadend 4.1-2247~gb23686a)

Crazy Cat

What Signal strength and SNR on dvb-t mux ?
You can test your t230c on windows or android ?

lord slash

SNR 31 dB and Signal Strength -55dBm (average, it depends on the channel)
I can test my t230c on windows, I already did a scan some days ago and I found two DVB-T2 HD channels (ARD and ZDF)

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