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/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* RP1 PiSP Front End statistics definitions
*
* Copyright (C) 2021 - Raspberry Pi Ltd.
*
*/
#ifndef _UAPI_PISP_FE_STATISTICS_H_
#define _UAPI_PISP_FE_STATISTICS_H_
#include <linux/types.h>
#define PISP_FLOATING_STATS_NUM_ZONES 4
#define PISP_AGC_STATS_NUM_BINS 1024
#define PISP_AGC_STATS_SIZE 16
#define PISP_AGC_STATS_NUM_ZONES (PISP_AGC_STATS_SIZE * PISP_AGC_STATS_SIZE)
#define PISP_AGC_STATS_NUM_ROW_SUMS 512
struct pisp_agc_statistics_zone {
__u64 Y_sum;
__u32 counted;
__u32 pad;
} __attribute__((packed));
struct pisp_agc_statistics {
__u32 row_sums[PISP_AGC_STATS_NUM_ROW_SUMS];
/*
* 32-bits per bin means an image (just less than) 16384x16384 pixels
* in size can weight every pixel from 0 to 15.
*/
__u32 histogram[PISP_AGC_STATS_NUM_BINS];
struct pisp_agc_statistics_zone floating[PISP_FLOATING_STATS_NUM_ZONES];
} __attribute__((packed));
#define PISP_AWB_STATS_SIZE 32
#define PISP_AWB_STATS_NUM_ZONES (PISP_AWB_STATS_SIZE * PISP_AWB_STATS_SIZE)
struct pisp_awb_statistics_zone {
__u32 R_sum;
__u32 G_sum;
__u32 B_sum;
__u32 counted;
} __attribute__((packed));
struct pisp_awb_statistics {
struct pisp_awb_statistics_zone zones[PISP_AWB_STATS_NUM_ZONES];
struct pisp_awb_statistics_zone floating[PISP_FLOATING_STATS_NUM_ZONES];
} __attribute__((packed));
#define PISP_CDAF_STATS_SIZE 8
#define PISP_CDAF_STATS_NUM_FOMS (PISP_CDAF_STATS_SIZE * PISP_CDAF_STATS_SIZE)
struct pisp_cdaf_statistics {
__u64 foms[PISP_CDAF_STATS_NUM_FOMS];
__u64 floating[PISP_FLOATING_STATS_NUM_ZONES];
} __attribute__((packed));
struct pisp_statistics {
struct pisp_awb_statistics awb;
struct pisp_agc_statistics agc;
struct pisp_cdaf_statistics cdaf;
} __attribute__((packed));
#endif /* _UAPI_PISP_FE_STATISTICS_H_ */
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