1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Support for Intel Camera Imaging ISP subsystem. 4 * Copyright (c) 2015, Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 */ 15 16 #ifndef __IA_CSS_GC_TYPES_H 17 #define __IA_CSS_GC_TYPES_H 18 19 /* @file 20 * CSS-API header file for Gamma Correction parameters. 21 */ 22 23 #include "isp/kernels/ctc/ctc_1.0/ia_css_ctc_types.h" /* FIXME: Needed for ia_css_vamem_type */ 24 25 /* Fractional bits for GAMMA gain */ 26 #define IA_CSS_GAMMA_GAIN_K_SHIFT 13 27 28 /* Number of elements in the gamma table. */ 29 #define IA_CSS_VAMEM_1_GAMMA_TABLE_SIZE_LOG2 10 30 #define IA_CSS_VAMEM_1_GAMMA_TABLE_SIZE BIT(IA_CSS_VAMEM_1_GAMMA_TABLE_SIZE_LOG2) 31 32 /* Number of elements in the gamma table. */ 33 #define IA_CSS_VAMEM_2_GAMMA_TABLE_SIZE_LOG2 8 34 #define IA_CSS_VAMEM_2_GAMMA_TABLE_SIZE ((1U << IA_CSS_VAMEM_2_GAMMA_TABLE_SIZE_LOG2) + 1) 35 36 /* Gamma table, used for Y(Luma) Gamma Correction. 37 * 38 * ISP block: GC1 (YUV Gamma Correction) 39 * ISP1: GC1 is used. 40 * (ISP2: GC2(sRGB Gamma Correction) is used.) 41 */ 42 /** IA_CSS_VAMEM_TYPE_1(ISP2300) or 43 IA_CSS_VAMEM_TYPE_2(ISP2400) */ 44 union ia_css_gc_data { 45 u16 vamem_1[IA_CSS_VAMEM_1_GAMMA_TABLE_SIZE]; 46 /** Y(Luma) Gamma table on vamem type 1. u0.8, [0,255] */ 47 u16 vamem_2[IA_CSS_VAMEM_2_GAMMA_TABLE_SIZE]; 48 /** Y(Luma) Gamma table on vamem type 2. u0.8, [0,255] */ 49 }; 50 51 struct ia_css_gamma_table { 52 enum ia_css_vamem_type vamem_type; 53 union ia_css_gc_data data; 54 }; 55 56 /* Gamma Correction configuration (used only for YUV Gamma Correction). 57 * 58 * ISP block: GC1 (YUV Gamma Correction) 59 * ISP1: GC1 is used. 60 * (ISP2: GC2 (sRGB Gamma Correction) is used.) 61 */ 62 struct ia_css_gc_config { 63 u16 gain_k1; /** Gain to adjust U after YUV Gamma Correction. 64 u0.16, [0,65535], 65 default/ineffective 19000(0.29) */ 66 u16 gain_k2; /** Gain to adjust V after YUV Gamma Correction. 67 u0.16, [0,65535], 68 default/ineffective 19000(0.29) */ 69 }; 70 71 /* Chroma Enhancement configuration. 72 * 73 * This parameter specifies range of chroma output level. 74 * The standard range is [0,255] or [16,240]. 75 * 76 * ISP block: CE1 77 * ISP1: CE1 is used. 78 * (ISP2: CE1 is not used.) 79 */ 80 struct ia_css_ce_config { 81 u8 uv_level_min; /** Minimum of chroma output level. 82 u0.8, [0,255], default/ineffective 0 */ 83 u8 uv_level_max; /** Maximum of chroma output level. 84 u0.8, [0,255], default/ineffective 255 */ 85 }; 86 87 /* Multi-Axes Color Correction (MACC) configuration. 88 * 89 * ISP block: MACC2 (MACC by matrix and exponent(ia_css_macc_config)) 90 * (ISP1: MACC1 (MACC by only matrix) is used.) 91 * ISP2: MACC2 is used. 92 */ 93 struct ia_css_macc_config { 94 u8 exp; /** Common exponent of ia_css_macc_table. 95 u8.0, [0,13], default 1, ineffective 1 */ 96 }; 97 98 #endif /* __IA_CSS_GC_TYPES_H */ 99