[Sound-open-firmware] [PATCH 1/2] uapi: ipc: Add lbm in sof_ipc_dai_config

[Liam Girdwood]

On Mon, 2018-06-04 at 14:38 +0800, Xiuli Pan wrote:
> From: Pan Xiuli <xiuli.pan at linux.intel.com>
> 
> Add loopback mode filed lbm in sof_ipc_dai_config to condif BE dai
> loobback mode.
> 
> Signed-off-by: Pan Xiuli <xiuli.pan at linux.intel.com>
> ---
> Work with patch set:
> SOF-Kernel:
>   ASoC: SOF: upai: ipc: Add lbm in sof_ipc_dai_config
>   ASoC: SOF: uapi: topology: Add SOF_TKN_DAI_LBM for ssp loopback mode
>   ASoC: SOF: topology: Add topology handler for dai config loopback mode
> SOF:
>   uapi: ipc: Add lbm in sof_ipc_dai_config
>   IPC: Add IPC handler for dai config loopback mode
> SOF-Tools:
>   topology: Add SOF_TKN_DAI_LBM for ssp loopback mode
>   topology: m4: Add option for loopback mode in DAI config
>   topology: test: Add loopback topology
> 
> test & santity test with:
> Mininow max rt5651 and UP2 Hifiberry PRO and CNL nocodec
> SOF master: 65ddcddfcc9a20f5b622cf3ba93dc326387a9d5d
> SOF-Tool master: 07d290c8ac6026af28bada021ac2215e3453fa88
> https://github.com/plbossart/sound/tree/topic/sof-v4.14:
> 3ffd39334cb53aced88b8aba17cae3df9ee2736f
> 
> ---
>  src/include/uapi/ipc.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/include/uapi/ipc.h b/src/include/uapi/ipc.h
> index 9b1063f..06498fb 100644
> --- a/src/include/uapi/ipc.h
> +++ b/src/include/uapi/ipc.h
> @@ -345,7 +345,7 @@ struct sof_ipc_dai_config {
>  
>  	/* physical protocol and clocking */
>  	uint16_t format;	/* SOF_DAI_FMT_ */
> -	uint16_t reserved;	/* alignment */
> +	uint16_t lbm;		/* loopback mode*/
>  
> 

loopback is not tied to HW config, it can be enabled/disable at runtime so
should use the standard IPC for component commands like volume.

Liam