[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. 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.
Attachment:
signature.asc
Description: PGP signature
_______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
