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 <linux/math.h>
8
9 #include <assert_support.h>
10 #include <ia_css_frame_public.h>
11 #include <ia_css_frame.h>
12 #include <ia_css_binary.h>
13 #include <ia_css_types.h>
14 #include <sh_css_defs.h>
15 #include <ia_css_debug.h>
16
17 #define IA_CSS_INCLUDE_CONFIGURATIONS
18 #include "ia_css_isp_configs.h"
19 #include "isp.h"
20
21 #include "ia_css_fpn.host.h"
22
23 void
ia_css_fpn_encode(struct sh_css_isp_fpn_params * to,const struct ia_css_fpn_table * from,unsigned int size)24 ia_css_fpn_encode(
25 struct sh_css_isp_fpn_params *to,
26 const struct ia_css_fpn_table *from,
27 unsigned int size)
28 {
29 (void)size;
30 to->shift = from->shift;
31 to->enabled = from->data != NULL;
32 }
33
34 void
ia_css_fpn_dump(const struct sh_css_isp_fpn_params * fpn,unsigned int level)35 ia_css_fpn_dump(
36 const struct sh_css_isp_fpn_params *fpn,
37 unsigned int level)
38 {
39 if (!fpn)
40 return;
41 ia_css_debug_dtrace(level, "Fixed Pattern Noise Reduction:\n");
42 ia_css_debug_dtrace(level, "\t%-32s = %d\n",
43 "fpn_shift", fpn->shift);
44 ia_css_debug_dtrace(level, "\t%-32s = %d\n",
45 "fpn_enabled", fpn->enabled);
46 }
47
ia_css_fpn_config(struct sh_css_isp_fpn_isp_config * to,const struct ia_css_fpn_configuration * from,unsigned int size)48 int ia_css_fpn_config(struct sh_css_isp_fpn_isp_config *to,
49 const struct ia_css_fpn_configuration *from,
50 unsigned int size)
51 {
52 unsigned int elems_a = ISP_VEC_NELEMS;
53 int ret;
54
55 ret = ia_css_dma_configure_from_info(&to->port_b, from->info);
56 if (ret)
57 return ret;
58
59 to->width_a_over_b = elems_a / to->port_b.elems;
60
61 /* Assume divisiblity here, may need to generalize to fixed point. */
62 if (elems_a % to->port_b.elems != 0)
63 return -EINVAL;
64
65 return 0;
66 }
67
ia_css_fpn_configure(const struct ia_css_binary * binary,const struct ia_css_frame_info * info)68 int ia_css_fpn_configure(const struct ia_css_binary *binary,
69 const struct ia_css_frame_info *info)
70 {
71 struct ia_css_frame_info my_info = IA_CSS_BINARY_DEFAULT_FRAME_INFO;
72 const struct ia_css_fpn_configuration config = {
73 &my_info
74 };
75
76 my_info.res.width = DIV_ROUND_UP(info->res.width, 2); /* Packed by 2x */
77 my_info.res.height = info->res.height;
78 my_info.padded_width = DIV_ROUND_UP(info->padded_width, 2); /* Packed by 2x */
79 my_info.format = info->format;
80 my_info.raw_bit_depth = FPN_BITS_PER_PIXEL;
81 my_info.raw_bayer_order = info->raw_bayer_order;
82 my_info.crop_info = info->crop_info;
83
84 return ia_css_configure_fpn(binary, &config);
85 }
86