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pisp_common.h
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/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ /* * RP1 PiSP common definitions. * * Copyright (C) 2021 - Raspberry Pi Ltd. * */ #ifndef _PISP_COMMON_H_ #define _PISP_COMMON_H_ #include <linux/types.h> struct pisp_image_format_config { /* size in pixels */ __u16 width; __u16 height; /* must match struct pisp_image_format below */ __u32 format; __s32 stride; /* some planar image formats will need a second stride */ __s32 stride2; } __attribute__((packed)); enum pisp_bayer_order { /* * Note how bayer_order&1 tells you if G is on the even pixels of the * checkerboard or not, and bayer_order&2 tells you if R is on the even * rows or is swapped with B. Note that if the top (of the 8) bits is * set, this denotes a monochrome or greyscale image, and the lower bits * should all be ignored. */ PISP_BAYER_ORDER_RGGB = 0, PISP_BAYER_ORDER_GBRG = 1, PISP_BAYER_ORDER_BGGR = 2, PISP_BAYER_ORDER_GRBG = 3, PISP_BAYER_ORDER_GREYSCALE = 128 }; enum pisp_image_format { /* * Precise values are mostly tbd. Generally these will be portmanteau * values comprising bit fields and flags. This format must be shared * throughout the PiSP. */ PISP_IMAGE_FORMAT_BPS_8 = 0x00000000, PISP_IMAGE_FORMAT_BPS_10 = 0x00000001, PISP_IMAGE_FORMAT_BPS_12 = 0x00000002, PISP_IMAGE_FORMAT_BPS_16 = 0x00000003, PISP_IMAGE_FORMAT_BPS_MASK = 0x00000003, PISP_IMAGE_FORMAT_PLANARITY_INTERLEAVED = 0x00000000, PISP_IMAGE_FORMAT_PLANARITY_SEMI_PLANAR = 0x00000010, PISP_IMAGE_FORMAT_PLANARITY_PLANAR = 0x00000020, PISP_IMAGE_FORMAT_PLANARITY_MASK = 0x00000030, PISP_IMAGE_FORMAT_SAMPLING_444 = 0x00000000, PISP_IMAGE_FORMAT_SAMPLING_422 = 0x00000100, PISP_IMAGE_FORMAT_SAMPLING_420 = 0x00000200, PISP_IMAGE_FORMAT_SAMPLING_MASK = 0x00000300, PISP_IMAGE_FORMAT_ORDER_NORMAL = 0x00000000, PISP_IMAGE_FORMAT_ORDER_SWAPPED = 0x00001000, PISP_IMAGE_FORMAT_SHIFT_0 = 0x00000000, PISP_IMAGE_FORMAT_SHIFT_1 = 0x00010000, PISP_IMAGE_FORMAT_SHIFT_2 = 0x00020000, PISP_IMAGE_FORMAT_SHIFT_3 = 0x00030000, PISP_IMAGE_FORMAT_SHIFT_4 = 0x00040000, PISP_IMAGE_FORMAT_SHIFT_5 = 0x00050000, PISP_IMAGE_FORMAT_SHIFT_6 = 0x00060000, PISP_IMAGE_FORMAT_SHIFT_7 = 0x00070000, PISP_IMAGE_FORMAT_SHIFT_8 = 0x00080000, PISP_IMAGE_FORMAT_SHIFT_MASK = 0x000f0000, PISP_IMAGE_FORMAT_BPP_32 = 0x00100000, PISP_IMAGE_FORMAT_UNCOMPRESSED = 0x00000000, PISP_IMAGE_FORMAT_COMPRESSION_MODE_1 = 0x01000000, PISP_IMAGE_FORMAT_COMPRESSION_MODE_2 = 0x02000000, PISP_IMAGE_FORMAT_COMPRESSION_MODE_3 = 0x03000000, PISP_IMAGE_FORMAT_COMPRESSION_MASK = 0x03000000, PISP_IMAGE_FORMAT_HOG_SIGNED = 0x04000000, PISP_IMAGE_FORMAT_HOG_UNSIGNED = 0x08000000, PISP_IMAGE_FORMAT_INTEGRAL_IMAGE = 0x10000000, PISP_IMAGE_FORMAT_WALLPAPER_ROLL = 0x20000000, PISP_IMAGE_FORMAT_THREE_CHANNEL = 0x40000000, /* Lastly a few specific instantiations of the above. */ PISP_IMAGE_FORMAT_SINGLE_16 = PISP_IMAGE_FORMAT_BPS_16, PISP_IMAGE_FORMAT_THREE_16 = PISP_IMAGE_FORMAT_BPS_16 | PISP_IMAGE_FORMAT_THREE_CHANNEL }; #define PISP_IMAGE_FORMAT_BPS_8(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_8) #define PISP_IMAGE_FORMAT_BPS_10(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_10) #define PISP_IMAGE_FORMAT_BPS_12(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_12) #define PISP_IMAGE_FORMAT_BPS_16(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_16) #define PISP_IMAGE_FORMAT_BPS(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) ? \ 8 + (2 << (((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) - 1)) : 8) #define PISP_IMAGE_FORMAT_SHIFT(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_SHIFT_MASK) / PISP_IMAGE_FORMAT_SHIFT_1) #define PISP_IMAGE_FORMAT_THREE_CHANNEL(fmt) \ ((fmt) & PISP_IMAGE_FORMAT_THREE_CHANNEL) #define PISP_IMAGE_FORMAT_SINGLE_CHANNEL(fmt) \ (!((fmt) & PISP_IMAGE_FORMAT_THREE_CHANNEL)) #define PISP_IMAGE_FORMAT_COMPRESSED(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_COMPRESSION_MASK) != \ PISP_IMAGE_FORMAT_UNCOMPRESSED) #define PISP_IMAGE_FORMAT_SAMPLING_444(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_SAMPLING_MASK) == \ PISP_IMAGE_FORMAT_SAMPLING_444) #define PISP_IMAGE_FORMAT_SAMPLING_422(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_SAMPLING_MASK) == \ PISP_IMAGE_FORMAT_SAMPLING_422) #define PISP_IMAGE_FORMAT_SAMPLING_420(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_SAMPLING_MASK) == \ PISP_IMAGE_FORMAT_SAMPLING_420) #define PISP_IMAGE_FORMAT_ORDER_NORMAL(fmt) \ (!((fmt) & PISP_IMAGE_FORMAT_ORDER_SWAPPED)) #define PISP_IMAGE_FORMAT_ORDER_SWAPPED(fmt) \ ((fmt) & PISP_IMAGE_FORMAT_ORDER_SWAPPED) #define PISP_IMAGE_FORMAT_INTERLEAVED(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_PLANARITY_MASK) == \ PISP_IMAGE_FORMAT_PLANARITY_INTERLEAVED) #define PISP_IMAGE_FORMAT_SEMIPLANAR(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_PLANARITY_MASK) == \ PISP_IMAGE_FORMAT_PLANARITY_SEMI_PLANAR) #define PISP_IMAGE_FORMAT_PLANAR(fmt) \ (((fmt) & PISP_IMAGE_FORMAT_PLANARITY_MASK) == \ PISP_IMAGE_FORMAT_PLANARITY_PLANAR) #define PISP_IMAGE_FORMAT_WALLPAPER(fmt) \ ((fmt) & PISP_IMAGE_FORMAT_WALLPAPER_ROLL) #define PISP_IMAGE_FORMAT_BPP_32(fmt) ((fmt) & PISP_IMAGE_FORMAT_BPP_32) #define PISP_IMAGE_FORMAT_HOG(fmt) \ ((fmt) & \ (PISP_IMAGE_FORMAT_HOG_SIGNED | PISP_IMAGE_FORMAT_HOG_UNSIGNED)) #define PISP_WALLPAPER_WIDTH 128 /* in bytes */ struct pisp_bla_config { __u16 black_level_r; __u16 black_level_gr; __u16 black_level_gb; __u16 black_level_b; __u16 output_black_level; __u8 pad[2]; } __attribute__((packed)); struct pisp_wbg_config { __u16 gain_r; __u16 gain_g; __u16 gain_b; __u8 pad[2]; } __attribute__((packed)); struct pisp_compress_config { /* value subtracted from incoming data */ __u16 offset; __u8 pad; /* 1 => Companding; 2 => Delta (recommended); 3 => Combined (for HDR) */ __u8 mode; } __attribute__((packed)); struct pisp_decompress_config { /* value added to reconstructed data */ __u16 offset; __u8 pad; /* 1 => Companding; 2 => Delta (recommended); 3 => Combined (for HDR) */ __u8 mode; } __attribute__((packed)); enum pisp_axi_flags { /* * round down bursts to end at a 32-byte boundary, to align following * bursts */ PISP_AXI_FLAG_ALIGN = 128, /* for FE writer: force WSTRB high, to pad output to 16-byte boundary */ PISP_AXI_FLAG_PAD = 64, /* for FE writer: Use Output FIFO level to trigger "panic" */ PISP_AXI_FLAG_PANIC = 32, }; struct pisp_axi_config { /* * burst length minus one, which must be in the range 0:15; OR'd with * flags */ __u8 maxlen_flags; /* { prot[2:0], cache[3:0] } fields, echoed on AXI bus */ __u8 cache_prot; /* QoS field(s) (4x4 bits for FE writer; 4 bits for other masters) */ __u16 qos; } __attribute__((packed)); #endif /* _PISP_COMMON_H_ */