On Mon, Jan 30, 2012 at 12:49 AM, NeilBrown <neilb@xxxxxxx> wrote: > > [resending to devel@ because it seems prjmgr@ is deprecated] > > Hello to the Linux driver project.... > > You might have heard of the Openmoko smartphone that was released some years > ago and faded a bit. > > You may not have heard of the "GTA04" replacement motherboard. This is board > which goes into the case for an Openmoko Freerunner or Neo 1973 and gives it > better capabilities like 3G, USB-2.0, 512Meg RAM, faster (OMAP) processor, > etc. > > We do have Linux running on this device but could use some help making it run > better - hence this request. > > We do have an offer to provide a small number of boards to developers who > commit to make them work better. They would be most suitable for someone who > already has an Openmoko phone (maybe gathering dust in a draw) as it could > ultimately be used as a fully functional phone. It is possible to do a lot > of development with just the bare board, a battery, a serial cable and a USB > cable though. > > There may be a delay in getting the boards as we are hoping to get enough > pre-orders for a modest (350) manufacturing run and the boards on offer would > come from that run. However if we could line someone up now, that will > reduce delays once the boards are ready. > > > The particular needs are: > > Drivers for sensors. > The board has an accelerometer, gyroscope, magnetometer, barometer. > We do have simplistic drivers for these but there is room for improvement. > Particularly the accelerometer can generate interrupts on certain > conditions like taps or re-orientations but this functionality is not made > available by the driver. > Also some of the drivers provide ad-hoc interfaces and it might be good to > provide IIO interfaces (maybe). > > FM radio: > The board has an FM radio transceiver. This should be integrated with V4L2 > I suspect. > > Battery charging / USB power > Basic battery charging works, however it always tries to draw 600mA which > is contrary to USB spec. There needs to be some negotiation with the > host to determine how much current is available, and then only draw that > much current for charging. (Also device doesn't charge while in suspend, > but this is probably an easy fix). > > IrDA / CIR: > This is an infrared interface which has not received any attention yet. > It is connected to the OMAP3 UART3 which can drive these directly. > > Power management: > This isn't exactly a driver issue, but current usage during suspend is > still too high (60mA instead of below 10mA). I believe this is due to > something in the OMAP3 not being turned off properly but it could be > something else completely. Getting this resolved would be excellent. > I can help with any kind of driver. I'm also owner of FreeRunner. Thanks for doing that. > We currently have two separate software stacks which provide mobile phone > functionality on this hardware and kernel: QtMoko and FSO > (Freesmartphone.org). > > Other info is available at: > > http://www.gta04.org > > http://projects.goldelico.com/p/gta04-main/downloads/37/get/ > This is a PDF which contains lots of details including links > to data sheets for most components, plus schematics. > > > http://projects.goldelico.com/p/gta04-kernel/page/Mainline-Status/ > overview of current status of the kernel > > > (detailed specification for cases are also available, so using a 3D printer to > build a case for the motherboard could also be a fun side-project). > > Thanks for any help you can provide, > > NeilBrown - on behalf of the GTA04 project. > > _______________________________________________ > devel mailing list > devel@xxxxxxxxxxxxxxxxxxxxxx > http://driverdev.linuxdriverproject.org/mailman/listinfo/devel > good luck, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite twitter: #opennandra web: http://open-nandra.com _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
