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: Bingbu Cao <bingbu.cao@xxxxxxxxx>
---
drivers/staging/media/ipu3/include/uapi/intel-ipu3.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h b/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h
index fa3d6ee5adf2..585f55981c86 100644
--- a/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h
+++ b/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h
@@ -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.
--
2.7.4
