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 #ifndef __IA_CSS_UTIL_H__
8 #define __IA_CSS_UTIL_H__
9 
10 #include <linux/errno.h>
11 
12 #include <ia_css_err.h>
13 #include <type_support.h>
14 #include <ia_css_frame_public.h>
15 #include <ia_css_stream_public.h>
16 #include <ia_css_stream_format.h>
17 
18 /* @brief convert "errno" error code to "ia_css_err" error code
19  *
20  * @param[in]	"errno" error code
21  * @return	"ia_css_err" error code
22  *
23  */
24 int ia_css_convert_errno(
25     int in_err);
26 
27 /* @brief check vf frame info.
28  *
29  * @param[in] info
30  * @return	0 or error code upon error.
31  *
32  */
33 int ia_css_util_check_vf_info(
34     const struct ia_css_frame_info *const info);
35 
36 /* @brief check input configuration.
37  *
38  * @param[in] stream_config
39  * @param[in] must_be_raw
40  * @return	0 or error code upon error.
41  *
42  */
43 int ia_css_util_check_input(
44     const struct ia_css_stream_config *const stream_config,
45     bool must_be_raw,
46     bool must_be_yuv);
47 
48 /* @brief check vf and out frame info.
49  *
50  * @param[in] out_info
51  * @param[in] vf_info
52  * @return	0 or error code upon error.
53  *
54  */
55 int ia_css_util_check_vf_out_info(
56     const struct ia_css_frame_info *const out_info,
57     const struct ia_css_frame_info *const vf_info);
58 
59 /* @brief check width and height
60  *
61  * @param[in] width
62  * @param[in] height
63  * @return	0 or error code upon error.
64  *
65  */
66 int ia_css_util_check_res(
67     unsigned int width,
68     unsigned int height);
69 
70 /* ISP2401 */
71 /* @brief compare resolutions (less or equal)
72  *
73  * @param[in] a resolution
74  * @param[in] b resolution
75  * @return    true if both dimensions of a are less or
76  *            equal than those of b, false otherwise
77  *
78  */
79 bool ia_css_util_res_leq(
80     struct ia_css_resolution a,
81     struct ia_css_resolution b);
82 
83 /* ISP2401 */
84 /**
85  * @brief Check if resolution is zero
86  *
87  * @param[in] resolution The resolution to check
88  *
89  * @returns true if resolution is zero
90  */
91 bool ia_css_util_resolution_is_zero(
92     const struct ia_css_resolution resolution);
93 
94 /* @brief check width and height
95  *
96  * @param[in] stream_format
97  * @param[in] two_ppc
98  * @return bits per pixel based on given parameters.
99  *
100  */
101 unsigned int ia_css_util_input_format_bpp(
102     enum atomisp_input_format stream_format,
103     bool two_ppc);
104 
105 /* @brief check if input format it raw
106  *
107  * @param[in] stream_format
108  * @return true if the input format is raw or false otherwise
109  *
110  */
111 bool ia_css_util_is_input_format_raw(
112     enum atomisp_input_format stream_format);
113 
114 /* @brief check if input format it yuv
115  *
116  * @param[in] stream_format
117  * @return true if the input format is yuv or false otherwise
118  *
119  */
120 bool ia_css_util_is_input_format_yuv(
121     enum atomisp_input_format stream_format);
122 
123 #endif /* __IA_CSS_UTIL_H__ */
124