Has anyone heard of this BridgeCo DM850 chip? It seems powerful, but I'm not sure if there is any ALSA support from the company.. from the datasheet:
"There are up to four Audio I/O ports, each with four I2S/I8S interfaces operating at up to 192 kHz in both I2S and I8S modes.
There are up to eight SPDIF interfaces operating at up to 192 kHz."
http://www.bridgeco.com/pdfs/850/adp_dm850_02_pma_chip-overv.pdf
-Andrew
On Thu, May 8, 2008 at 10:22 AM, Liam Girdwood lg@opensource.wolfsonmicro.com wrote:
On Thu, 2008-05-08 at 15:08 +0100, Mark Brown wrote:
On Thu, May 08, 2008 at 09:50:32AM -0400, Andrew Paprocki wrote:
Is anyone aware of a Linux/ALSA capable chip that can drive 192khz I2S? I poked through the ASoC code and could only see 96khz capability.
The PowerPC code in sound/soc/fsl (as of 2.6.25) supports up to 192kHz, though it appears to require the codec to clock the bus. The SuperH and Alchemy code in:
git://opensource.wolfsonmicro.com/linux-2.6-asoc
says they support up to 192kHz too. PXA3xx should support this too when it's done.
heh, shows how much attention I've been paying lately to commits.
PX2xx (SSP) and i.MX3x (SSI) should also do 192kHz too. Interestingly pxa2xx I2S almost manages (datasheet max is 48kHz) 192kHz but underruns a bit!