Hi Emilio, what did you change to fix this?
Tobias Am Dienstag, 3. Februar 2015 23:47:35 UTC+1 schrieb Emilio López: > > El 03/02/15 a las 17:18, Emilio López escibió: > > Hi, > > > > El 03/02/15 a las 16:39, [email protected] <javascript:> escibió: > >> Did you fix multiple simultaneous DMA transfers in this? And easy test > >> is to start jack audio. Jack will start simultaneous cyclic transfers > >> on both the ALSA input and output. Since cyclic transfers never end, > >> multiple simultaneous transfers has to work. Last time I tried it I > >> got an immediate GPF when the second cyclic transfer was started. > > > > I didn't get a chance to test with jack yet, but I don't see any reason > > why two cyclic transfers wouldn't work, assuming they're on different > > vchans. > > > > Were you by any chance booting off of NAND by the way? That caused a GPF > > because the bootloader left the hardware in a dirty state, but it should > > be fixed now. > > A quick followup on this; I tried jack and found a bug on the way > channels are terminated, it turns out sometimes IRQs can still trigger > after the termination. Once I fixed that, I was able to get jack to > produce a deafening tone with the following: > > # jackd -dalsa --playback & > # jackdmp 1.9.10 > Copyright 2001-2005 Paul Davis and others. > Copyright 2004-2014 Grame. > jackdmp comes with ABSOLUTELY NO WARRANTY > This is free software, and you are welcome to redistribute it > under certain conditions; see the file COPYING for details > JACK server starting in realtime mode with priority 10 > self-connect-mode is "Don't restrict self connect requests" > creating alsa driver ... hw:0|-|1024|2|48000|0|0|nomon|swmeter|-|32bit > configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 > periods > ALSA: final selected sample format for playback: 32bit integer > little-endian > ALSA: use 2 periods for playback > # jack_simple_client > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
