Commit 3a7438c8 authored by Bingbu Cao's avatar Bingbu Cao Committed by Mauro Carvalho Chehab
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media: staging: document that Imgu not output auto-exposure statistics 



Currently, Imgu can not support output the auto-exposure statistics into
ae_raw_buffer in 3A stats buffer, this patch document it.

Signed-off-by: default avatarBingbu Cao <bingbu.cao@intel.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 311a839a

drivers/staging/media/ipu3/include/uapi/intel-ipu3.h

+6 −1
Original line number Diff line number Diff line
@@ -234,7 +234,9 @@ struct ipu3_uapi_ae_ccm { 
 * struct ipu3_uapi_ae_config - AE config

 *

 * @grid_cfg:	config for auto exposure statistics grid. See struct

 *		&ipu3_uapi_ae_grid_config

 *		&ipu3_uapi_ae_grid_config, as Imgu did not support output

 *		auto exposure statistics, so user can ignore this configuration

 *		and use the RGB table in auto-whitebalance statistics instead.

 * @weights:	&IPU3_UAPI_AE_WEIGHTS is based on 32x24 blocks in the grid.

 *		Each grid cell has a corresponding value in weights LUT called

 *		grid value, global histogram is updated based on grid value and
@@ -534,6 +536,9 @@ struct ipu3_uapi_ff_status { 
 *

 * @awb_raw_buffer: auto white balance meta data &ipu3_uapi_awb_raw_buffer

 * @ae_raw_buffer: auto exposure raw data &ipu3_uapi_ae_raw_buffer_aligned

 *                 current Imgu does not output the auto exposure statistics

 *                 to ae_raw_buffer, the user such as 3A algorithm can use the

 *                 RGB table in &ipu3_uapi_awb_raw_buffer to do auto-exposure.

 * @af_raw_buffer: &ipu3_uapi_af_raw_buffer for auto focus meta data

 * @awb_fr_raw_buffer: value as specified by &ipu3_uapi_awb_fr_raw_buffer

 * @stats_4a_config: 4a statistics config as defined by &ipu3_uapi_4a_config.