On Tue, Jun 25, 2019 at 10:36 AM Vijay Kumar Banerjee <vijaykumar9...@gmail.com> wrote: > > > > On Tue, Jun 25, 2019 at 9:32 PM Gedare Bloom <ged...@rtems.org> wrote: >> >> On Tue, Jun 25, 2019 at 5:34 AM Vijay Kumar Banerjee >> <vijaykumar9...@gmail.com> wrote: >> > >> > Hello, >> > >> > The First Evaluation is going on and I here I would summarize all the >> > progress >> > that the project has made in the first Phase. >> > >> > 1. The major progress is the completion of the I2C adaptation layer in the >> > libbsd >> > along with the iicbus driver imports. The v4 of the driver [1] has >> > been tested to be >> > working with the bbb-i2c driver patch [2]. After the RTEMS driver is >> > updated in the >> > master, the adaptation layer will be mergeable. >> > >> > 2. I am getting EDID reading from the imported tda drivers. I have checked >> > this using >> > the ti_i2c driver but now as we have an updated version of the >> > driver, I'll pull this all >> > with the adaptation layer and will continue from there. >> > >> > 3. I found a sample app from the freebsd mailing list, that draws a basic >> > shape on the >> > screen. I have made it a standalone app with only single source and >> > have tested it >> > to be working with the FreeBSD. The only issue with the code is that >> > it uses mmap >> > and RTEMS doesn't use mmap so I'm rewriting the app with pread and >> > pwrtie on >> > to write to the /dev/fb0 directly. This app work is ongoing. >> > >> We have a rudimentary mmap() support available. I would expect this >> might be important to investigate for graphics applications in general >> might be trying to mmap() device memory. >> > At this moment, my objective is to just test that the fb device is working. > For that, as I said, I'm trying to rewrite the mmap with pread instead. So > far I couldn't get anything on screen with it though but if the writes work > then I'm expecting to see something on the screen. > As you have pointed out that most graphics applications will be using > mmap(). Do you suggest trying to improve mmap() support as a part > of this project? Is that expected to take a lot of time? >
I leave this decision up to you and your mentors whether (and why) to re-prioritize any of your work. >> > Next Up: >> > 1. merge the ported TDA driver and using it with the adaptation layer. >> > 2. Import and port the fbd dirver to create an fb0 device. >> > 3. complete the sample app and convert it into a libbsd sample app to test >> > the device. >> > >> > 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
