CXD2820 & PCTV nanoStick T2 290e bringup

CXD2820 & PCTV nanoStick T2 290e bringup

[Steve Kerrison]

Hello everyone,

I've done some work on bringup of this device in Linux, and now have a
stub for the CXD2820 demod that includes the capability to pass I2C
commands through to the tuner that sits behind it.

The focus was on bringup, not compatibility with linux-media or Linus'
coding guidelines, but hopefully it's not so horrendous that it makes
you want to cry. This isn't a formal patch submission, but anyone with
an interest is welcome to read more and grab the patch here:
http://stevekerrison.com/290e/index.html#20110227 taking heed of the
warnings and advice where necessary :)

Only I2C passthrough is supported - none of the other demodulator or
frontend functions work, and it doesn't detach properly.

I'd like to know what the best approach would be for me to allow others
to contribute to this if they so wish?

Many thanks,
-- 
Steve Kerrison MEng Hons.
http://www.stevekerrison.com/ 

Re: CXD2820 & PCTV nanoStick T2 290e bringup

[Antti Palosaari]

Hello Steve at all,
Here it is, feel free to test:
http://git.linuxtv.org/anttip/media_tree.git?a=shortlog;h=refs/heads/pctv_290e

Now I *need* help for adding proper DVB-T2 support for the API. I added 
fe_delivery_system_t SYS_DVBT2, but there is no app knowing that yet. 
Since there is also module param to set DVB-T2 frequencies.
For example here is DVB-T2 transmission on channels 570 MHz and 586 MHz. 
You can just type:
echo 570,586 > /sys/module/cxd2820r/parameters/dvbt2_freq
as root, or load driver module following way:
modprobe cxd2820r dvbt2_freq=570,586
for the same.

Also em28xx driver MFE needs review and comments, since I am not sure 
about its correctness.

Antti


On 02/27/2011 09:49 PM, Steve Kerrison wrote:
> Hello everyone,
>
> I've done some work on bringup of this device in Linux, and now have a
> stub for the CXD2820 demod that includes the capability to pass I2C
> commands through to the tuner that sits behind it.
>
> The focus was on bringup, not compatibility with linux-media or Linus'
> coding guidelines, but hopefully it's not so horrendous that it makes
> you want to cry. This isn't a formal patch submission, but anyone with
> an interest is welcome to read more and grab the patch here:
> http://stevekerrison.com/290e/index.html#20110227 taking heed of the
> warnings and advice where necessary :)
>
> Only I2C passthrough is supported - none of the other demodulator or
> frontend functions work, and it doesn't detach properly.
>
> I'd like to know what the best approach would be for me to allow others
> to contribute to this if they so wish?
>
> Many thanks,


-- 
http://palosaari.fi/