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/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* RP1 PiSP Front End Driver Configuration structures
*
* Copyright (C) 2021 - Raspberry Pi Ltd.
*
*/
#ifndef _UAPI_PISP_FE_CONFIG_
#define _UAPI_PISP_FE_CONFIG_
#include <linux/types.h>
#include "pisp_common.h"
#include "pisp_fe_statistics.h"
#define PISP_FE_NUM_OUTPUTS 2
enum pisp_fe_enable {
PISP_FE_ENABLE_INPUT = 0x000001,
PISP_FE_ENABLE_DECOMPRESS = 0x000002,
PISP_FE_ENABLE_DECOMPAND = 0x000004,
PISP_FE_ENABLE_BLA = 0x000008,
PISP_FE_ENABLE_DPC = 0x000010,
PISP_FE_ENABLE_STATS_CROP = 0x000020,
PISP_FE_ENABLE_DECIMATE = 0x000040,
PISP_FE_ENABLE_BLC = 0x000080,
PISP_FE_ENABLE_CDAF_STATS = 0x000100,
PISP_FE_ENABLE_AWB_STATS = 0x000200,
PISP_FE_ENABLE_RGBY = 0x000400,
PISP_FE_ENABLE_LSC = 0x000800,
PISP_FE_ENABLE_AGC_STATS = 0x001000,
PISP_FE_ENABLE_CROP0 = 0x010000,
PISP_FE_ENABLE_DOWNSCALE0 = 0x020000,
PISP_FE_ENABLE_COMPRESS0 = 0x040000,
PISP_FE_ENABLE_OUTPUT0 = 0x080000,
PISP_FE_ENABLE_CROP1 = 0x100000,
PISP_FE_ENABLE_DOWNSCALE1 = 0x200000,
PISP_FE_ENABLE_COMPRESS1 = 0x400000,
PISP_FE_ENABLE_OUTPUT1 = 0x800000
};
#define PISP_FE_ENABLE_CROP(i) (PISP_FE_ENABLE_CROP0 << (4 * (i)))
#define PISP_FE_ENABLE_DOWNSCALE(i) (PISP_FE_ENABLE_DOWNSCALE0 << (4 * (i)))
#define PISP_FE_ENABLE_COMPRESS(i) (PISP_FE_ENABLE_COMPRESS0 << (4 * (i)))
#define PISP_FE_ENABLE_OUTPUT(i) (PISP_FE_ENABLE_OUTPUT0 << (4 * (i)))
/*
* We use the enable flags to show when blocks are "dirty", but we need some
* extra ones too.
*/
enum pisp_fe_dirty {
PISP_FE_DIRTY_GLOBAL = 0x0001,
PISP_FE_DIRTY_FLOATING = 0x0002,
PISP_FE_DIRTY_OUTPUT_AXI = 0x0004
};
struct pisp_fe_global_config {
__u32 enables;
__u8 bayer_order;
__u8 pad[3];
} __attribute__((packed));
struct pisp_fe_input_axi_config {
/* burst length minus one, in the range 0..15; OR'd with flags */
__u8 maxlen_flags;
/* { prot[2:0], cache[3:0] } fields */
__u8 cache_prot;
/* QoS (only 4 LS bits are used) */
__u16 qos;
} __attribute__((packed));
struct pisp_fe_output_axi_config {
/* burst length minus one, in the range 0..15; OR'd with flags */
__u8 maxlen_flags;
/* { prot[2:0], cache[3:0] } fields */
__u8 cache_prot;
/* QoS (4 bitfields of 4 bits each for different panic levels) */
__u16 qos;
/* For Panic mode: Output FIFO panic threshold */
__u16 thresh;
/* For Panic mode: Output FIFO statistics throttle threshold */
__u16 throttle;
} __attribute__((packed));
struct pisp_fe_input_config {
__u8 streaming;
__u8 pad[3];
struct pisp_image_format_config format;
struct pisp_fe_input_axi_config axi;
/* Extra cycles delay before issuing each burst request */
__u8 holdoff;
__u8 pad2[3];
} __attribute__((packed));
struct pisp_fe_output_config {
struct pisp_image_format_config format;
__u16 ilines;
__u8 pad[2];
} __attribute__((packed));
struct pisp_fe_input_buffer_config {
__u32 addr_lo;
__u32 addr_hi;
__u16 frame_id;
__u16 pad;
} __attribute__((packed));
#define PISP_FE_DECOMPAND_LUT_SIZE 65
struct pisp_fe_decompand_config {
__u16 lut[PISP_FE_DECOMPAND_LUT_SIZE];
__u16 pad;
} __attribute__((packed));
struct pisp_fe_dpc_config {
__u8 coeff_level;
__u8 coeff_range;
__u8 coeff_range2;
#define PISP_FE_DPC_FLAG_FOLDBACK 1
#define PISP_FE_DPC_FLAG_VFLAG 2
__u8 flags;
} __attribute__((packed));
#define PISP_FE_LSC_LUT_SIZE 16
struct pisp_fe_lsc_config {
__u8 shift;
__u8 pad0;
__u16 scale;
__u16 centre_x;
__u16 centre_y;
__u16 lut[PISP_FE_LSC_LUT_SIZE];
} __attribute__((packed));
struct pisp_fe_rgby_config {
__u16 gain_r;
__u16 gain_g;
__u16 gain_b;
__u8 maxflag;
__u8 pad;
} __attribute__((packed));
struct pisp_fe_agc_stats_config {
__u16 offset_x;
__u16 offset_y;
__u16 size_x;
__u16 size_y;
/* each weight only 4 bits */
__u8 weights[PISP_AGC_STATS_NUM_ZONES / 2];
__u16 row_offset_x;
__u16 row_offset_y;
__u16 row_size_x;
__u16 row_size_y;
__u8 row_shift;
__u8 float_shift;
__u8 pad1[2];
} __attribute__((packed));
struct pisp_fe_awb_stats_config {
__u16 offset_x;
__u16 offset_y;
__u16 size_x;
__u16 size_y;
__u8 shift;
__u8 pad[3];
__u16 r_lo;
__u16 r_hi;
__u16 g_lo;
__u16 g_hi;
__u16 b_lo;
__u16 b_hi;
} __attribute__((packed));
struct pisp_fe_floating_stats_region {
__u16 offset_x;
__u16 offset_y;
__u16 size_x;
__u16 size_y;
} __attribute__((packed));
struct pisp_fe_floating_stats_config {
struct pisp_fe_floating_stats_region
regions[PISP_FLOATING_STATS_NUM_ZONES];
} __attribute__((packed));
#define PISP_FE_CDAF_NUM_WEIGHTS 8
struct pisp_fe_cdaf_stats_config {
__u16 noise_constant;
__u16 noise_slope;
__u16 offset_x;
__u16 offset_y;
__u16 size_x;
__u16 size_y;
__u16 skip_x;
__u16 skip_y;
__u32 mode;
} __attribute__((packed));
struct pisp_fe_stats_buffer_config {
__u32 addr_lo;
__u32 addr_hi;
} __attribute__((packed));
struct pisp_fe_crop_config {
__u16 offset_x;
__u16 offset_y;
__u16 width;
__u16 height;
} __attribute__((packed));
enum pisp_fe_downscale_flags {
/* downscale the four Bayer components independently... */
DOWNSCALE_BAYER = 1,
/* ...without trying to preserve their spatial relationship */
DOWNSCALE_BIN = 2,
};
struct pisp_fe_downscale_config {
__u8 xin;
__u8 xout;
__u8 yin;
__u8 yout;
__u8 flags; /* enum pisp_fe_downscale_flags */
__u8 pad[3];
__u16 output_width;
__u16 output_height;
} __attribute__((packed));
struct pisp_fe_output_buffer_config {
__u32 addr_lo;
__u32 addr_hi;
} __attribute__((packed));
/* Each of the two output channels/branches: */
struct pisp_fe_output_branch_config {
struct pisp_fe_crop_config crop;
struct pisp_fe_downscale_config downscale;
struct pisp_compress_config compress;
struct pisp_fe_output_config output;
__u32 pad;
} __attribute__((packed));
/* And finally one to rule them all: */
struct pisp_fe_config {
/* I/O configuration: */
struct pisp_fe_stats_buffer_config stats_buffer;
struct pisp_fe_output_buffer_config output_buffer[PISP_FE_NUM_OUTPUTS];
struct pisp_fe_input_buffer_config input_buffer;
/* processing configuration: */
struct pisp_fe_global_config global;
struct pisp_fe_input_config input;
struct pisp_decompress_config decompress;
struct pisp_fe_decompand_config decompand;
struct pisp_bla_config bla;
struct pisp_fe_dpc_config dpc;
struct pisp_fe_crop_config stats_crop;
__u32 spare1; /* placeholder for future decimate configuration */
struct pisp_bla_config blc;
struct pisp_fe_rgby_config rgby;
struct pisp_fe_lsc_config lsc;
struct pisp_fe_agc_stats_config agc_stats;
struct pisp_fe_awb_stats_config awb_stats;
struct pisp_fe_cdaf_stats_config cdaf_stats;
struct pisp_fe_floating_stats_config floating_stats;
struct pisp_fe_output_axi_config output_axi;
struct pisp_fe_output_branch_config ch[PISP_FE_NUM_OUTPUTS];
/* non-register fields: */
__u32 dirty_flags; /* these use pisp_fe_enable */
__u32 dirty_flags_extra; /* these use pisp_fe_dirty */
} __attribute__((packed));
#endif /* _UAPI_PISP_FE_CONFIG_ */
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