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Tips : how to support ARM target for Jack / ALSA

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	Tips : how to support ARM target for Jack / ALSA by Fabien Comte :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Some parts of this message have been removed. Learn more about Nabble's security policy. Hi, Most of ARM processors doesn’t have a FPU. If you want to get jack working with alsa src and sink (aplay, arecord…), you have to force lfloat support in alsa-lib (in configure.ac, search for softfloat keyword). It works fine. Fabien _______________________________________________ Jack-Devel mailing list Jack-Devel@... http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
	Re: Tips : how to support ARM target for Jack / ALSA by Jussi Laako-2 :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Fabien Comte wrote: > Most of ARM processors doesn’t have a FPU. If you want to get jack > working with alsa src and sink (aplay, arecord…), you have to force > lfloat support in alsa-lib (in configure.ac, search for softfloat keyword). Most recent ARM CPUs/SOCs have floating point -capable vector units. See: http://www.arm.com/products/multimedia/neon/ It would be fairly simple to add support for these to JACKv1 as it already has placeholder and a system to deal with SIMD extensions. _______________________________________________ Jack-Devel mailing list Jack-Devel@... http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
	Re: Tips : how to support ARM target for Jack / ALSA by Fabien Comte :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Yes indeed, but that's a high end arm with a high cost :-) With this tips, I was able to get jack working on an Atmel AT91SAM9 -> Arm ARM926EJ-S core -> low cost, low consumption, very often used in devices (http://en.wikipedia.org/wiki/ARM_architecture) Yes It could be useful for embedded designs. Fabien -----Message d'origine----- De : Jussi Laako [mailto:jussi@...] Envoyé : mercredi 23 septembre 2009 23:06 À : Fabien Comte Cc : jack-devel@... Objet : Re: [Jack-Devel] Tips : how to support ARM target for Jack / ALSA Fabien Comte wrote: > Most of ARM processors doesn’t have a FPU. If you want to get jack > working with alsa src and sink (aplay, arecord…), you have to force > lfloat support in alsa-lib (in configure.ac, search for softfloat keyword). Most recent ARM CPUs/SOCs have floating point -capable vector units. See: http://www.arm.com/products/multimedia/neon/ It would be fairly simple to add support for these to JACKv1 as it already has placeholder and a system to deal with SIMD extensions. _______________________________________________ Jack-Devel mailing list Jack-Devel@... http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org