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_CNR2_TYPES_H 17 #define __IA_CSS_CNR2_TYPES_H 18 19 /* @file 20 * CSS-API header file for Chroma Noise Reduction (CNR) parameters 21 */ 22 23 /* Chroma Noise Reduction configuration. 24 * 25 * Small sensitivity of edge means strong smoothness and NR performance. 26 * If you see blurred color on vertical edges, 27 * set higher values on sense_gain_h*. 28 * If you see blurred color on horizontal edges, 29 * set higher values on sense_gain_v*. 30 * 31 * ISP block: CNR2 32 * (ISP1: CNR1 is used.) 33 * (ISP2: CNR1 is used for Preview/Video.) 34 * ISP2: CNR2 is used for Still. 35 */ 36 struct ia_css_cnr_config { 37 u16 coring_u; /** Coring level of U. 38 u0.13, [0,8191], default/ineffective 0 */ 39 u16 coring_v; /** Coring level of V. 40 u0.13, [0,8191], default/ineffective 0 */ 41 u16 sense_gain_vy; /** Sensitivity of horizontal edge of Y. 42 u13.0, [0,8191], default 100, ineffective 8191 */ 43 u16 sense_gain_vu; /** Sensitivity of horizontal edge of U. 44 u13.0, [0,8191], default 100, ineffective 8191 */ 45 u16 sense_gain_vv; /** Sensitivity of horizontal edge of V. 46 u13.0, [0,8191], default 100, ineffective 8191 */ 47 u16 sense_gain_hy; /** Sensitivity of vertical edge of Y. 48 u13.0, [0,8191], default 50, ineffective 8191 */ 49 u16 sense_gain_hu; /** Sensitivity of vertical edge of U. 50 u13.0, [0,8191], default 50, ineffective 8191 */ 51 u16 sense_gain_hv; /** Sensitivity of vertical edge of V. 52 u13.0, [0,8191], default 50, ineffective 8191 */ 53 }; 54 55 #endif /* __IA_CSS_CNR2_TYPES_H */ 56