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