/* 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 _PISP_FE_CONFIG_ #define _PISP_FE_CONFIG_ #include "pisp_common.h" #include "pisp_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]; }; 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; }; 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; }; 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]; }; struct pisp_fe_output_config { struct pisp_image_format_config format; u16 ilines; u8 pad[2]; }; struct pisp_fe_input_buffer_config { u32 addr_lo; u32 addr_hi; u16 frame_id; u16 pad; }; #define PISP_FE_DECOMPAND_LUT_SIZE 65 struct pisp_fe_decompand_config { u16 lut[PISP_FE_DECOMPAND_LUT_SIZE]; u16 pad; }; 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; }; #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]; }; struct pisp_fe_rgby_config { u16 gain_r; u16 gain_g; u16 gain_b; u8 maxflag; u8 pad; }; 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]; }; 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; }; struct pisp_fe_floating_stats_region { u16 offset_x; u16 offset_y; u16 size_x; u16 size_y; }; struct pisp_fe_floating_stats_config { struct pisp_fe_floating_stats_region regions[PISP_FLOATING_STATS_NUM_ZONES]; }; #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; }; struct pisp_fe_stats_buffer_config { u32 addr_lo; u32 addr_hi; }; struct pisp_fe_crop_config { u16 offset_x; u16 offset_y; u16 width; u16 height; }; enum pisp_fe_downscale_flags { DOWNSCALE_BAYER = 1, /* downscale the four Bayer components independently... */ DOWNSCALE_BIN = 2 /* ...without trying to preserve their spatial relationship */ }; 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; }; struct pisp_fe_output_buffer_config { u32 addr_lo; u32 addr_hi; }; /* 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; }; /* 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 */ }; #endif /* _PISP_FE_CONFIG_ */