[alsa-devel] [PATCH v3 1/1] ASoC: mxs-saif: add record function

[Girdwood, Liam]

On 7 September 2011 13:51, Dong Aisheng <b29396 at freescale.com> wrote:

> 1. add different clkmux mode handling
> SAIF can use two instances to implement full duplex (playback &
> recording) and record saif may work on EXTMASTER mode which is
> using other saif's BITCLK&LRCLK.
>
> The clkmux mode could be set in pdata->init() in mach-specific code.
> For generic saif driver, it only needs to know who is his master
> and the master id is also provided in mach-specific code.
>
> 2. support playback and capture simutaneously however the sample
> rates can not be different due to hw limitation.
>
> Signed-off-by: Dong Aisheng <b29396 at freescale.com>
> Cc: Mark Brown <broonie at opensource.wolfsonmicro.com>
> Cc: Liam Girdwood <lrg at ti.com>
> Cc: Sascha Hauer <s.hauer at pengutronix.de>
> Cc: Wolfram Sang <w.sang at pengutronix.de>
>
> ---
> Changes since v2:
>  * remove mach-specific code(clkmux in DIGCTL) out of saif driver
>  For supporting EXTMASTER mode, SAIF only nees to know who's
>  its master and the master id is provided by mach layer according
>  to different clkmux setting.
>  So we need to add a pdata->get_master_id();
>
> Changes since v1:
>  * calc the delay based on the rate
>  * change the saif.h #ifndef micro to match the directory
> ---
>  include/sound/saif.h     |   16 +++++
>  sound/soc/mxs/mxs-saif.c |  145
> +++++++++++++++++++++++++++++++++++++++++-----
>  sound/soc/mxs/mxs-saif.h |    4 +
>  3 files changed, 151 insertions(+), 14 deletions(-)
>
>
Acked-by Liam Girdwood <lrg at ti.com>