xref: /linux/drivers/staging/media/atomisp/pci/isp/kernels/bnr/bnr_1.0/ia_css_bnr.host.c (revision 3fd6c59042dbba50391e30862beac979491145fe)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Support for Intel Camera Imaging ISP subsystem.
4  * Copyright (c) 2015, Intel Corporation.
5  */
6 
7 #include "ia_css_types.h"
8 #include "sh_css_defs.h"
9 #include "ia_css_debug.h"
10 #include "sh_css_frac.h"
11 
12 #include "ia_css_bnr.host.h"
13 
14 void
ia_css_bnr_encode(struct sh_css_isp_bnr_params * to,const struct ia_css_nr_config * from,unsigned int size)15 ia_css_bnr_encode(
16     struct sh_css_isp_bnr_params *to,
17     const struct ia_css_nr_config *from,
18     unsigned int size)
19 {
20 	(void)size;
21 	/* BNR (Bayer Noise Reduction) */
22 	to->threshold_low =
23 	    uDIGIT_FITTING(from->direction, 16, SH_CSS_BAYER_BITS);
24 	to->threshold_width_log2 = uFRACTION_BITS_FITTING(8);
25 	to->threshold_width =
26 	    1 << to->threshold_width_log2;
27 	to->gain_all =
28 	    uDIGIT_FITTING(from->bnr_gain, 16, SH_CSS_BNR_GAIN_SHIFT);
29 	to->gain_dir =
30 	    uDIGIT_FITTING(from->bnr_gain, 16, SH_CSS_BNR_GAIN_SHIFT);
31 	to->clip = uDIGIT_FITTING(16384U, 16, SH_CSS_BAYER_BITS);
32 }
33 
34 void
ia_css_bnr_dump(const struct sh_css_isp_bnr_params * bnr,unsigned int level)35 ia_css_bnr_dump(
36     const struct sh_css_isp_bnr_params *bnr,
37     unsigned int level)
38 {
39 	if (!bnr)
40 		return;
41 	ia_css_debug_dtrace(level, "Bayer Noise Reduction:\n");
42 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
43 			    "bnr_gain_all", bnr->gain_all);
44 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
45 			    "bnr_gain_dir", bnr->gain_dir);
46 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
47 			    "bnr_threshold_low",
48 			    bnr->threshold_low);
49 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
50 			    "bnr_threshold_width_log2",
51 			    bnr->threshold_width_log2);
52 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
53 			    "bnr_threshold_width",
54 			    bnr->threshold_width);
55 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
56 			    "bnr_clip", bnr->clip);
57 }
58