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_util.h"
8 #include <ia_css_frame.h>
9 #include <assert_support.h>
10 #include <math_support.h>
11
12 /* for ia_css_binary_max_vf_width() */
13 #include "ia_css_binary.h"
14
15 /* MW: Table look-up ??? */
ia_css_util_input_format_bpp(enum atomisp_input_format format,bool two_ppc)16 unsigned int ia_css_util_input_format_bpp(
17 enum atomisp_input_format format,
18 bool two_ppc)
19 {
20 unsigned int rval = 0;
21
22 switch (format) {
23 case ATOMISP_INPUT_FORMAT_YUV420_8_LEGACY:
24 case ATOMISP_INPUT_FORMAT_YUV420_8:
25 case ATOMISP_INPUT_FORMAT_YUV422_8:
26 case ATOMISP_INPUT_FORMAT_RGB_888:
27 case ATOMISP_INPUT_FORMAT_RAW_8:
28 case ATOMISP_INPUT_FORMAT_BINARY_8:
29 case ATOMISP_INPUT_FORMAT_EMBEDDED:
30 rval = 8;
31 break;
32 case ATOMISP_INPUT_FORMAT_YUV420_10:
33 case ATOMISP_INPUT_FORMAT_YUV422_10:
34 case ATOMISP_INPUT_FORMAT_RAW_10:
35 rval = 10;
36 break;
37 case ATOMISP_INPUT_FORMAT_YUV420_16:
38 case ATOMISP_INPUT_FORMAT_YUV422_16:
39 rval = 16;
40 break;
41 case ATOMISP_INPUT_FORMAT_RGB_444:
42 rval = 4;
43 break;
44 case ATOMISP_INPUT_FORMAT_RGB_555:
45 rval = 5;
46 break;
47 case ATOMISP_INPUT_FORMAT_RGB_565:
48 rval = 65;
49 break;
50 case ATOMISP_INPUT_FORMAT_RGB_666:
51 case ATOMISP_INPUT_FORMAT_RAW_6:
52 rval = 6;
53 break;
54 case ATOMISP_INPUT_FORMAT_RAW_7:
55 rval = 7;
56 break;
57 case ATOMISP_INPUT_FORMAT_RAW_12:
58 rval = 12;
59 break;
60 case ATOMISP_INPUT_FORMAT_RAW_14:
61 if (two_ppc)
62 rval = 14;
63 else
64 rval = 12;
65 break;
66 case ATOMISP_INPUT_FORMAT_RAW_16:
67 if (two_ppc)
68 rval = 16;
69 else
70 rval = 12;
71 break;
72 default:
73 rval = 0;
74 break;
75 }
76 return rval;
77 }
78
ia_css_util_check_vf_info(const struct ia_css_frame_info * const info)79 int ia_css_util_check_vf_info(
80 const struct ia_css_frame_info *const info)
81 {
82 int err;
83 unsigned int max_vf_width;
84
85 assert(info);
86 err = ia_css_frame_check_info(info);
87 if (err)
88 return err;
89 max_vf_width = ia_css_binary_max_vf_width();
90 if (max_vf_width != 0 && info->res.width > max_vf_width * 2)
91 return -EINVAL;
92 return 0;
93 }
94
ia_css_util_check_vf_out_info(const struct ia_css_frame_info * const out_info,const struct ia_css_frame_info * const vf_info)95 int ia_css_util_check_vf_out_info(
96 const struct ia_css_frame_info *const out_info,
97 const struct ia_css_frame_info *const vf_info)
98 {
99 int err;
100
101 assert(out_info);
102 assert(vf_info);
103
104 err = ia_css_frame_check_info(out_info);
105 if (err)
106 return err;
107 err = ia_css_util_check_vf_info(vf_info);
108 if (err)
109 return err;
110 return 0;
111 }
112
113 /* ISP2401 */
ia_css_util_res_leq(struct ia_css_resolution a,struct ia_css_resolution b)114 bool ia_css_util_res_leq(struct ia_css_resolution a, struct ia_css_resolution b)
115 {
116 return a.width <= b.width && a.height <= b.height;
117 }
118
119 /* ISP2401 */
ia_css_util_resolution_is_zero(const struct ia_css_resolution resolution)120 bool ia_css_util_resolution_is_zero(const struct ia_css_resolution resolution)
121 {
122 return (resolution.width == 0) || (resolution.height == 0);
123 }
124
ia_css_util_check_res(unsigned int width,unsigned int height)125 int ia_css_util_check_res(unsigned int width, unsigned int height)
126 {
127 const struct ia_css_resolution resolution = { .width = width, .height = height };
128
129 if (ia_css_util_resolution_is_zero(resolution))
130 return -EINVAL;
131
132 /* height can be odd number for jpeg/embedded data from ISYS2401 */
133 if (width & 1)
134 return -EINVAL;
135
136 return 0;
137 }
138
ia_css_util_is_input_format_raw(enum atomisp_input_format format)139 bool ia_css_util_is_input_format_raw(enum atomisp_input_format format)
140 {
141 return ((format == ATOMISP_INPUT_FORMAT_RAW_6) ||
142 (format == ATOMISP_INPUT_FORMAT_RAW_7) ||
143 (format == ATOMISP_INPUT_FORMAT_RAW_8) ||
144 (format == ATOMISP_INPUT_FORMAT_RAW_10) ||
145 (format == ATOMISP_INPUT_FORMAT_RAW_12));
146 /* raw_14 and raw_16 are not supported as input formats to the ISP.
147 * They can only be copied to a frame in memory using the
148 * copy binary.
149 */
150 }
151
ia_css_util_is_input_format_yuv(enum atomisp_input_format format)152 bool ia_css_util_is_input_format_yuv(enum atomisp_input_format format)
153 {
154 return format == ATOMISP_INPUT_FORMAT_YUV420_8_LEGACY ||
155 format == ATOMISP_INPUT_FORMAT_YUV420_8 ||
156 format == ATOMISP_INPUT_FORMAT_YUV420_10 ||
157 format == ATOMISP_INPUT_FORMAT_YUV420_16 ||
158 format == ATOMISP_INPUT_FORMAT_YUV422_8 ||
159 format == ATOMISP_INPUT_FORMAT_YUV422_10 ||
160 format == ATOMISP_INPUT_FORMAT_YUV422_16;
161 }
162
ia_css_util_check_input(const struct ia_css_stream_config * const stream_config,bool must_be_raw,bool must_be_yuv)163 int ia_css_util_check_input(
164 const struct ia_css_stream_config *const stream_config,
165 bool must_be_raw,
166 bool must_be_yuv)
167 {
168 assert(stream_config);
169
170 if (!stream_config)
171 return -EINVAL;
172
173 if (stream_config->input_config.effective_res.width == 0 ||
174 stream_config->input_config.effective_res.height == 0)
175 return -EINVAL;
176 if (must_be_raw &&
177 !ia_css_util_is_input_format_raw(stream_config->input_config.format))
178 return -EINVAL;
179
180 if (must_be_yuv &&
181 !ia_css_util_is_input_format_yuv(stream_config->input_config.format))
182 return -EINVAL;
183
184 return 0;
185 }
186