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#define IA_CSS_INCLUDE_CONFIGURATIONS
21#include "ia_css_isp_configs.h"
22#include "isp.h"
23#include "ia_css_ref.host.h"
24
25int ia_css_ref_config(struct sh_css_isp_ref_isp_config *to,
26		      const struct ia_css_ref_configuration  *from,
27		      unsigned int size)
28{
29	unsigned int elems_a = ISP_VEC_NELEMS, i;
30	int ret;
31
32	if (from->ref_frames[0]) {
33		ret = ia_css_dma_configure_from_info(&to->port_b, &from->ref_frames[0]->frame_info);
34		if (ret)
35			return ret;
36		to->width_a_over_b = elems_a / to->port_b.elems;
37		to->dvs_frame_delay = from->dvs_frame_delay;
38	} else {
39		to->width_a_over_b = 1;
40		to->dvs_frame_delay = 0;
41		to->port_b.elems = elems_a;
42	}
43	for (i = 0; i < MAX_NUM_VIDEO_DELAY_FRAMES; i++) {
44		if (from->ref_frames[i]) {
45			to->ref_frame_addr_y[i] = from->ref_frames[i]->data +
46						  from->ref_frames[i]->planes.yuv.y.offset;
47			to->ref_frame_addr_c[i] = from->ref_frames[i]->data +
48						  from->ref_frames[i]->planes.yuv.u.offset;
49		} else {
50			to->ref_frame_addr_y[i] = 0;
51			to->ref_frame_addr_c[i] = 0;
52		}
53	}
54
55	/* Assume divisiblity here, may need to generalize to fixed point. */
56	if (elems_a % to->port_b.elems != 0)
57		return -EINVAL;
58
59	return 0;
60}
61
62int ia_css_ref_configure(const struct ia_css_binary        *binary,
63			 const struct ia_css_frame * const *ref_frames,
64			 const uint32_t dvs_frame_delay)
65{
66	struct ia_css_ref_configuration config;
67	unsigned int i;
68
69	for (i = 0; i < MAX_NUM_VIDEO_DELAY_FRAMES; i++)
70		config.ref_frames[i] = ref_frames[i];
71
72	config.dvs_frame_delay = dvs_frame_delay;
73
74	return ia_css_configure_ref(binary, &config);
75}
76
77void
78ia_css_init_ref_state(
79    struct sh_css_isp_ref_dmem_state *state,
80    unsigned int size)
81{
82	(void)size;
83	assert(MAX_NUM_VIDEO_DELAY_FRAMES >= 2);
84	state->ref_in_buf_idx = 0;
85	state->ref_out_buf_idx = 1;
86}
87