On Wed, Apr 10, 2019 at 12:50 PM Christian Mauderer < christian.maude...@embedded-brains.de> wrote:
> Am 09.04.19 um 18:12 schrieb Vijay Kumar Banerjee: > > Hi, > > > > I have imported and ported the the drivers in 2 pairs(import and port) > > of commits > > for each one. Please have a look at this branch > > https://github.com/thelunatic/rtems-libbsd/commits/tda19988 > > One detail: You have a commit named "tda19988.c: import from FreeBSD". > Please remove the ".c". > > Noted. > Maybe it would be a good idea to split of the I2C part and put it in > front of the other two parts. You can develop and test that independent > with a test that just accesses some of the I2C devices on the board via > the FreeBSD API and the translation driver discussed below. > > This is a good idea, I'll import iicbus separately and add the other two on top of it. > > > > I have also tried running the media01.exe and have seen it running fine > > without > > throwing any exceptions. > > > > I have used the fb.c and iicbus.c codes from the freebsd source. From > > what I > > understand, I think the next big steps would be to write an RTEMS > > implementation layer for these portions of the code? And then a test in > the > > libbsd, like media01, to write to the /dev/fb0 > > > > Can you please help me chalk out a rough outline of the next set of > > actions? :) > > As far as I can tell, there are two possible I2C buses here: > > 1. The one between the AM335x and the TDA19988. > > 2. The one directly on the HDMI connector (called HDMI_DSCL and > HDMI_DSDA). I assume that's an I2C bus too. > > For 1. the RTEMS driver should be used. You'll need some code that > translates the FreeBSD API to the one used in RTEMS. Basically that will > just be a FreeBSD-I2C-driver. > > For 2: If that even is an independent I2C bus, you can use the driver > provided by FreeBSD. I don't think that it is necessary to translate to > the RTEMS API here. > > I had a look at the iic and iicbus codes in freebsd and the bbb-i2c.c This looks very confusing to me. Are we looking for something like a rtems-iicbus.c in the rtemsbsd that works like a wrapper to the bbb-i2c code, and uses the freebsd api of DEVMETHODs? I've not been able to figure out at one look, how to relate them and get a wrapper like that. Any suggestions on how to approach this? Can we not totally use the iicbus in the freebsd source? > > > > Thanks > > > > On Tue, Apr 9, 2019 at 5:28 AM Chris Johns <chr...@rtems.org > > <mailto:chr...@rtems.org>> wrote: > > > > On 8/4/19 12:30 am, Vijay Kumar Banerjee wrote: > > > On Sun, Apr 7, 2019 at 6:24 PM Christian Mauderer > > <l...@c-mauderer.de <mailto:l...@c-mauderer.de> > > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de>>> wrote: > > > Am 07.04.19 um 14:50 schrieb Vijay Kumar Banerjee: > > > > On Sun, Apr 7, 2019 at 6:08 PM Christian Mauderer > > <l...@c-mauderer.de <mailto:l...@c-mauderer.de> > > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de>> > > > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de> > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de>>>> wrote: > > > > Am 07.04.19 um 14:35 schrieb Vijay Kumar Banerjee: > > > > > On Sun, Apr 7, 2019 at 5:37 PM Christian Mauderer > > > > <l...@c-mauderer.de <mailto:l...@c-mauderer.de> > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de>> > > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de> > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de>>> > > > > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de> > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de>> > > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de> > > <mailto:l...@c-mauderer.de <mailto:l...@c-mauderer.de>>>>> wrote: > > > > > Am 07.04.19 um 13:08 schrieb Vijay Kumar Banerjee: > > > > > > I don't think that there are a lot of docs for how to test. > > Although I'm > > > sure that there are some scripts to run a number of libbsd > > tests, I'm > > > not sure where. Maybe in the RTEMS tester but I think that is > > mainly for > > > the core tests? > > > > The documentation for testing can be found here ... > > > > https://docs.rtems.org/branches/master/user/testing/index.html > > > > > so far I know, RTEMS Tester is only for core tests. > > > > The `rtems-test` command checks the for test start and end banners. > > I am not > > sure if libbsd supports the test banners. Maybe it could now with > > Sebastian's > > movement of the test support code into libtest. > > > > > I'll ask in the devel if there's some way to run libbsd test with > > the tester. > > > > There is the `rtems-run` command which has similar args to > > `rtems-test`. It does > > suffer from a limitation I have not fixed which is stdin is not > > passed through > > to the console of the target. I also think the command has a timeout > > running, > > but I am not sure about this one. > > > > Chris > > > > -- > -------------------------------------------- > embedded brains GmbH > Herr Christian Mauderer > Dornierstr. 4 > D-82178 Puchheim > Germany > email: christian.maude...@embedded-brains.de > Phone: +49-89-18 94 741 - 18 > Fax: +49-89-18 94 741 - 08 > PGP: Public key available on request. > > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. >
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