1 /*
2  * Support for Intel Camera Imaging ISP subsystem.
3  * Copyright (c) 2015, Intel Corporation.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms and conditions of the GNU General Public License,
7  * version 2, as published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  */
14 
15 #include "ia_css_types.h"
16 #include "ia_css_frame.h"
17 #include "sh_css_defs.h"
18 #include "ia_css_debug.h"
19 #include "sh_css_frac.h"
20 #include "assert_support.h"
21 #define IA_CSS_INCLUDE_CONFIGURATIONS
22 #include "ia_css_isp_configs.h"
23 #include "isp.h"
24 
25 #include "ia_css_tnr.host.h"
26 const struct ia_css_tnr_config default_tnr_config = {
27 	32768,
28 	32,
29 	32,
30 };
31 
32 void
33 ia_css_tnr_encode(
34     struct sh_css_isp_tnr_params *to,
35     const struct ia_css_tnr_config *from,
36     unsigned int size)
37 {
38 	(void)size;
39 	to->coef =
40 	    uDIGIT_FITTING(from->gain, 16, SH_CSS_TNR_COEF_SHIFT);
41 	to->threshold_Y =
42 	    uDIGIT_FITTING(from->threshold_y, 16, SH_CSS_ISP_YUV_BITS);
43 	to->threshold_C =
44 	    uDIGIT_FITTING(from->threshold_uv, 16, SH_CSS_ISP_YUV_BITS);
45 }
46 
47 void
48 ia_css_tnr_dump(
49     const struct sh_css_isp_tnr_params *tnr,
50     unsigned int level)
51 {
52 	if (!tnr) return;
53 	ia_css_debug_dtrace(level, "Temporal Noise Reduction:\n");
54 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
55 			    "tnr_coef", tnr->coef);
56 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
57 			    "tnr_threshold_Y", tnr->threshold_Y);
58 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
59 			    "tnr_threshold_C", tnr->threshold_C);
60 }
61 
62 void
63 ia_css_tnr_debug_dtrace(
64     const struct ia_css_tnr_config *config,
65     unsigned int level)
66 {
67 	ia_css_debug_dtrace(level,
68 			    "config.gain=%d, config.threshold_y=%d, config.threshold_uv=%d\n",
69 			    config->gain,
70 			    config->threshold_y, config->threshold_uv);
71 }
72 
73 void
74 ia_css_tnr_config(
75     struct sh_css_isp_tnr_isp_config *to,
76     const struct ia_css_tnr_configuration *from,
77     unsigned int size)
78 {
79 	unsigned int elems_a = ISP_VEC_NELEMS;
80 	unsigned int i;
81 
82 	(void)size;
83 	ia_css_dma_configure_from_info(&to->port_b, &from->tnr_frames[0]->info);
84 	to->width_a_over_b = elems_a / to->port_b.elems;
85 	to->frame_height = from->tnr_frames[0]->info.res.height;
86 	for (i = 0; i < NUM_TNR_FRAMES; i++) {
87 		to->tnr_frame_addr[i] = from->tnr_frames[i]->data +
88 					from->tnr_frames[i]->planes.yuyv.offset;
89 	}
90 
91 	/* Assume divisiblity here, may need to generalize to fixed point. */
92 	assert(elems_a % to->port_b.elems == 0);
93 }
94 
95 void
96 ia_css_tnr_configure(
97     const struct ia_css_binary     *binary,
98     const struct ia_css_frame * const *frames)
99 {
100 	struct ia_css_tnr_configuration config;
101 	unsigned int i;
102 
103 	for (i = 0; i < NUM_TNR_FRAMES; i++)
104 		config.tnr_frames[i] = frames[i];
105 
106 	ia_css_configure_tnr(binary, &config);
107 }
108 
109 void
110 ia_css_init_tnr_state(
111     struct sh_css_isp_tnr_dmem_state *state,
112     size_t size)
113 {
114 	(void)size;
115 
116 	assert(NUM_TNR_FRAMES >= 2);
117 	assert(sizeof(*state) == size);
118 	state->tnr_in_buf_idx = 0;
119 	state->tnr_out_buf_idx = 1;
120 }
121