[alsa-devel] MPC5200 I2S driver for ASoC
timur at freescale.com
Wed Aug 1 19:53:33 CEST 2007
> I'm integrating a ALSA driver for an MPC5200 into the ASoC layer,
> similar to my successful effort for a PXA255 board.
Can you provide your code? I'm working on ASoC support for another MPC SOC, so we need to
synchronize our development.
> I'm modeling the
> DMA and ALSA interfaces per ac97mgt driver found in the Lite5200B BSP,
> rather than the BestComm API example in the 2.4 kernel. The
> speaker-test with 400Hz sine wave is working, but has a slight audible
> jitter. A wav file output using aplay produces white noise.
What kind of audio samples are you trying to play? Since the MPC5200 is typically
big-endian, you probably can only play S16_BE samples instead of S16_LE samples.
Linux Kernel Developer @ Freescale
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