On Sun, Jun 14, 2020 at 5:45 PM Christian Mauderer <o...@c-mauderer.de> wrote: > > On 14/06/2020 13:26, Vijay Kumar Banerjee wrote: > > On Sat, Jun 6, 2020 at 4:58 PM Christian Mauderer <o...@c-mauderer.de> > > wrote: > >> > >> On 06/06/2020 13:09, Vijay Kumar Banerjee wrote: > >>> On Fri, Jun 5, 2020 at 8:30 PM Christian Mauderer <o...@c-mauderer.de> > >>> wrote: > >>>> > >>>> Hello Vijay, > >>>> > >>>> On 04/06/2020 21:36, Vijay Kumar Banerjee wrote: > >>>>> Hi! > >>>>> > >>>>> I had been looking for an opportunity to do this for a long time and I'm > >>>>> excited to post that LVGL apps on RTEMS can now use input devices > >>>>> through the evdev interface! > >>>> > >>>> Sounds like a nice feature. > >>>> > >>>>> > >>>>> I prepared some BSD evdev patches for lvgl repository and managed to get > >>>>> them merged upstream. The patchset that I recently send to devel for > >>>>> libbsd[1] and rtems-littlevgl[2], updates the rtems-libbsd and > >>>>> rtems-littlevgl repository to adapt to the latest lvgl changes upstream > >>>>> and adds the evdev support to rtems-littlevgl. > >>>>> > >>>>> I wrote an example lvgl application that uses the mouse, connected > >>>>> through USB port of Beaglebone black. The example application uses the > >>>>> RTEMS logo, which makes it a bit heavier patch for the devel. I have > >>>>> posted the commit on my github fork [3] and would really appreciate it > >>>>> if someone can review and approve it to merge upstream. > >>>> > >>>> Although most likely touch screens are more common in embedded systems, > >>>> it's a good example. A lot of touchscreens should work via evdev too. > >>>> > >>> I couldn't work on the touchscreen due to the lack of hardware. The > >>> intention is indeed to enable the use of a touchscreen or mouse > >>> through evdev interface. > >>> Can you please test if the touchscreen works on BBB with evdev01.exe > >>> test in libbsd? If this works, I'll try to get the touchscreen model > >>> that you have (most probably after the lockdown is over :) ) and will > >>> integrate it into the same demo app. > >> > >> I would have to try first whether the touch is supported in FreeBSD. I'm > >> not sure about that. But if you have tested one evdev device, another > >> one should work too. You did test that the interface between libbsd and > >> littelvgl works with the mouse. > >> > >>> > >>>> Regarding the logo size: Also an RTEMS logo is a nice idea, maybe > >>>> something smaller would be better to avoid that big file in the repo? > >>>> Depending on how you generated the image: Maybe some run length encoding > >>>> could reduce the size too (for example GIMP offers an option for that > >>>> when exporting images to C sources). > >>>> > >>> Thanks for pointing this out. This indeed lowered the size by half. > >>> I'm trying to get it working with lvgl and will post a patch to the > >>> list once I get it done. > >> > > Hi Christian, > > > > I tried a few times to work out the run-length encoding with lvgl but > > it's not working quite as expected. I can have a deeper look at it > > later. The C file I generated with the logo is 282 KB currently, is it > > too big for the repo? If not, I'd like to make a fresh patch by > > changing it into a header file and would like to push after a review > > from the list. If it's big, then I would like to post a patch without > > any image so that we at least have some example code that uses evdev. > > We can improve it later when we have time. What do you suggest? > > Hi Vijay, > > go on with your patch set. We have other big files too. If soeone else > is unhappy too after you send the whole patch set: Shrink the logo to > reduce the size. >
Thanks! Sent the patch. :) > Best regards > > Christian > > > > > > > Best regards, > > Vijay > >> Great. > >> > >>> > >>>>> > >>>>> Finally, please have a look at this very short video that shows the > >>>>> example application running. It uses many features of lvgl, including > >>>>> image, button, and input: > >>>>> https://blog.thelunatic.dev/assets/video/lvgl_rtems_logo.mp4 > >>>> > >>>> Looks great. > >>>> > >>> Thanks. > >>> > >>> Best regards, > >>> Vijay > >>>> Best regards > >>>> > >>>> Christian > >>>> > >>>>> > >>>>> We can now make full-fledged GUI applications with LVGL on RTEMS. :) > >>>>> > >>>>> [1]: https://lists.rtems.org/pipermail/devel/2020-June/060049.html > >>>>> [2]: https://lists.rtems.org/pipermail/devel/2020-June/060050.html > >>>>> [3]: > >>>>> https://github.com/thelunatic/rtems-examples/commit/c526d3c06a69591dc36e62af32728c51012ea6c1 > >>>>> > >>>>> Thanks! > >>>>> Vijay > >>>>> > >>>>> _______________________________________________ > >>>>> devel mailing list > >>>>> devel@rtems.org > >>>>> http://lists.rtems.org/mailman/listinfo/devel > >>>>> > >>> > > _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
