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 <assert_support.h>
17#include <ia_css_frame_public.h>
18#include <ia_css_frame.h>
19#include <ia_css_binary.h>
20#include <ia_css_types.h>
21#include <sh_css_defs.h>
22#include <ia_css_debug.h>
23
24#define IA_CSS_INCLUDE_CONFIGURATIONS
25#include "ia_css_isp_configs.h"
26#include "isp.h"
27
28#include "ia_css_fpn.host.h"
29
30void
31ia_css_fpn_encode(
32    struct sh_css_isp_fpn_params *to,
33    const struct ia_css_fpn_table *from,
34    unsigned int size)
35{
36	(void)size;
37	to->shift = from->shift;
38	to->enabled = from->data != NULL;
39}
40
41void
42ia_css_fpn_dump(
43    const struct sh_css_isp_fpn_params *fpn,
44    unsigned int level)
45{
46	if (!fpn) return;
47	ia_css_debug_dtrace(level, "Fixed Pattern Noise Reduction:\n");
48	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
49			    "fpn_shift", fpn->shift);
50	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
51			    "fpn_enabled", fpn->enabled);
52}
53
54int ia_css_fpn_config(struct sh_css_isp_fpn_isp_config *to,
55		      const struct ia_css_fpn_configuration *from,
56		      unsigned int size)
57{
58	unsigned int elems_a = ISP_VEC_NELEMS;
59	int ret;
60
61	ret = ia_css_dma_configure_from_info(&to->port_b, from->info);
62	if (ret)
63		return ret;
64
65	to->width_a_over_b = elems_a / to->port_b.elems;
66
67	/* Assume divisiblity here, may need to generalize to fixed point. */
68	if (elems_a % to->port_b.elems != 0)
69		return -EINVAL;
70
71	return 0;
72}
73
74int ia_css_fpn_configure(const struct ia_css_binary     *binary,
75			 const struct ia_css_frame_info *info)
76{
77	struct ia_css_frame_info my_info = IA_CSS_BINARY_DEFAULT_FRAME_INFO;
78	const struct ia_css_fpn_configuration config = {
79		&my_info
80	};
81
82	my_info.res.width       = CEIL_DIV(info->res.width, 2);		/* Packed by 2x */
83	my_info.res.height      = info->res.height;
84	my_info.padded_width    = CEIL_DIV(info->padded_width, 2);	/* Packed by 2x */
85	my_info.format          = info->format;
86	my_info.raw_bit_depth   = FPN_BITS_PER_PIXEL;
87	my_info.raw_bayer_order = info->raw_bayer_order;
88	my_info.crop_info       = info->crop_info;
89
90	return ia_css_configure_fpn(binary, &config);
91}
92