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_YNR_TYPES_H
17#define __IA_CSS_YNR_TYPES_H
18
19/* @file
20* CSS-API header file for Noise Reduction (BNR) and YCC Noise Reduction (YNR,CNR).
21*/
22
23/* Configuration used by Bayer Noise Reduction (BNR) and
24 *  YCC Noise Reduction (YNR,CNR).
25 *
26 *  ISP block: BNR1, YNR1, CNR1
27 *  ISP1: BNR1,YNR1,CNR1 are used.
28 *  ISP2: BNR1,YNR1,CNR1 are used for Preview/Video.
29 *        BNR1,YNR2,CNR2 are used for Still.
30 */
31struct ia_css_nr_config {
32	ia_css_u0_16 bnr_gain;	   /** Strength of noise reduction (BNR).
33				u0.16, [0,65535],
34				default 14336(0.21875), ineffective 0 */
35	ia_css_u0_16 ynr_gain;	   /** Strength of noise reduction (YNR).
36				u0.16, [0,65535],
37				default 14336(0.21875), ineffective 0 */
38	ia_css_u0_16 direction;    /** Sensitivity of edge (BNR).
39				u0.16, [0,65535],
40				default 512(0.0078125), ineffective 0 */
41	ia_css_u0_16 threshold_cb; /** Coring threshold for Cb (CNR).
42				This is the same as
43				de_config.c1_coring_threshold.
44				u0.16, [0,65535],
45				default 0(0), ineffective 0 */
46	ia_css_u0_16 threshold_cr; /** Coring threshold for Cr (CNR).
47				This is the same as
48				de_config.c2_coring_threshold.
49				u0.16, [0,65535],
50				default 0(0), ineffective 0 */
51};
52
53/* Edge Enhancement (sharpen) configuration.
54 *
55 *  ISP block: YEE1
56 *  ISP1: YEE1 is used.
57 *  ISP2: YEE1 is used for Preview/Video.
58 *       (YEE2 is used for Still.)
59 */
60struct ia_css_ee_config {
61	ia_css_u5_11 gain;	  /** The strength of sharpness.
62					u5.11, [0,65535],
63					default 8192(4.0), ineffective 0 */
64	ia_css_u8_8 threshold;    /** The threshold that divides noises from
65					edge.
66					u8.8, [0,65535],
67					default 256(1.0), ineffective 65535 */
68	ia_css_u5_11 detail_gain; /** The strength of sharpness in pell-mell
69					area.
70					u5.11, [0,65535],
71					default 2048(1.0), ineffective 0 */
72};
73
74/* YNR and YEE (sharpen) configuration.
75 */
76struct ia_css_yee_config {
77	struct ia_css_nr_config nr; /** The NR configuration. */
78	struct ia_css_ee_config ee; /** The EE configuration. */
79};
80
81#endif /* __IA_CSS_YNR_TYPES_H */
82