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 #include "ia_css_types.h"
17 #include "ia_css_frame.h"
18 #include "sh_css_defs.h"
19 #include "ia_css_debug.h"
20 #include "sh_css_frac.h"
21 #include "assert_support.h"
22 #define IA_CSS_INCLUDE_CONFIGURATIONS
23 #include "ia_css_isp_configs.h"
24 #include "isp.h"
25 
26 #include "ia_css_tnr.host.h"
27 const struct ia_css_tnr_config default_tnr_config = {
28 	32768,
29 	32,
30 	32,
31 };
32 
33 void
34 ia_css_tnr_encode(
35     struct sh_css_isp_tnr_params *to,
36     const struct ia_css_tnr_config *from,
37     unsigned int size)
38 {
39 	(void)size;
40 	to->coef =
41 	    uDIGIT_FITTING(from->gain, 16, SH_CSS_TNR_COEF_SHIFT);
42 	to->threshold_Y =
43 	    uDIGIT_FITTING(from->threshold_y, 16, SH_CSS_ISP_YUV_BITS);
44 	to->threshold_C =
45 	    uDIGIT_FITTING(from->threshold_uv, 16, SH_CSS_ISP_YUV_BITS);
46 }
47 
48 void
49 ia_css_tnr_dump(
50     const struct sh_css_isp_tnr_params *tnr,
51     unsigned int level)
52 {
53 	if (!tnr) return;
54 	ia_css_debug_dtrace(level, "Temporal Noise Reduction:\n");
55 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
56 			    "tnr_coef", tnr->coef);
57 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
58 			    "tnr_threshold_Y", tnr->threshold_Y);
59 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
60 			    "tnr_threshold_C", tnr->threshold_C);
61 }
62 
63 void
64 ia_css_tnr_debug_dtrace(
65     const struct ia_css_tnr_config *config,
66     unsigned int level)
67 {
68 	ia_css_debug_dtrace(level,
69 			    "config.gain=%d, config.threshold_y=%d, config.threshold_uv=%d\n",
70 			    config->gain,
71 			    config->threshold_y, config->threshold_uv);
72 }
73 
74 void
75 ia_css_tnr_config(
76     struct sh_css_isp_tnr_isp_config *to,
77     const struct ia_css_tnr_configuration *from,
78     unsigned int size)
79 {
80 	unsigned int elems_a = ISP_VEC_NELEMS;
81 	unsigned int i;
82 
83 	(void)size;
84 	ia_css_dma_configure_from_info(&to->port_b, &from->tnr_frames[0]->info);
85 	to->width_a_over_b = elems_a / to->port_b.elems;
86 	to->frame_height = from->tnr_frames[0]->info.res.height;
87 	for (i = 0; i < NUM_TNR_FRAMES; i++) {
88 		to->tnr_frame_addr[i] = from->tnr_frames[i]->data +
89 					from->tnr_frames[i]->planes.yuyv.offset;
90 	}
91 
92 	/* Assume divisiblity here, may need to generalize to fixed point. */
93 	assert(elems_a % to->port_b.elems == 0);
94 }
95 
96 void
97 ia_css_tnr_configure(
98     const struct ia_css_binary     *binary,
99     const struct ia_css_frame * const *frames)
100 {
101 	struct ia_css_tnr_configuration config;
102 	unsigned int i;
103 
104 	for (i = 0; i < NUM_TNR_FRAMES; i++)
105 		config.tnr_frames[i] = frames[i];
106 
107 	ia_css_configure_tnr(binary, &config);
108 }
109 
110 void
111 ia_css_init_tnr_state(
112     struct sh_css_isp_tnr_dmem_state *state,
113     size_t size)
114 {
115 	(void)size;
116 
117 	assert(NUM_TNR_FRAMES >= 2);
118 	assert(sizeof(*state) == size);
119 	state->tnr_in_buf_idx = 0;
120 	state->tnr_out_buf_idx = 1;
121 }
122