1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2015, Intel Corporation.
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.
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
16 #ifndef __IA_CSS_FRAME_FORMAT_H
17 #define __IA_CSS_FRAME_FORMAT_H
20 * This file contains information about formats supported in the ISP
23 /* Frame formats, some of these come from fourcc.org, others are
24 better explained by video4linux2. The NV11 seems to be described only
25 on MSDN pages, but even those seem to be gone now.
26 Frames can come in many forms, the main categories are RAW, RGB and YUV
27 (or YCbCr). The YUV frames come in 4 flavors, determined by how the U and V
28 values are subsampled:
29 1. YUV420: hor = 2, ver = 2
30 2. YUV411: hor = 4, ver = 1
31 3. YUV422: hor = 2, ver = 1
32 4. YUV444: hor = 1, ver = 1
34 Warning: not all frame formats are supported as input or output to/from ISP.
35 Some of these formats are therefore not defined in the output table module.
36 Modifications in below frame format enum can require modifications in the
39 Warning2: Throughout the CSS code assumptions are made on the order
40 of formats in this enumeration type, or some sort of copy is maintained.
41 The following files are identified:
43 - css/isp/kernels/fc/fc_1.0/formats.isp.c
44 - css/isp/kernels/output/output_1.0/output_table.isp.c
45 - css/isp/kernels/output/sc_output_1.0/formats.hive.c
46 - css/isp/modes/interface/isp_formats.isp.h
47 - css/bxt_sandbox/psyspoc/interface/ia_css_pg_info.h
48 - css/bxt_sandbox/psysapi/data/interface/ia_css_program_group_data.h
49 - css/bxt_sandbox/isysapi/interface/ia_css_isysapi_fw_types.h
51 enum ia_css_frame_format {
52 IA_CSS_FRAME_FORMAT_NV11 = 0, /** 12 bit YUV 411, Y, UV plane */
53 IA_CSS_FRAME_FORMAT_NV12, /** 12 bit YUV 420, Y, UV plane */
54 IA_CSS_FRAME_FORMAT_NV12_16, /** 16 bit YUV 420, Y, UV plane */
55 IA_CSS_FRAME_FORMAT_NV12_TILEY, /** 12 bit YUV 420, Intel proprietary tiled format, TileY */
56 IA_CSS_FRAME_FORMAT_NV16, /** 16 bit YUV 422, Y, UV plane */
57 IA_CSS_FRAME_FORMAT_NV21, /** 12 bit YUV 420, Y, VU plane */
58 IA_CSS_FRAME_FORMAT_NV61, /** 16 bit YUV 422, Y, VU plane */
59 IA_CSS_FRAME_FORMAT_YV12, /** 12 bit YUV 420, Y, V, U plane */
60 IA_CSS_FRAME_FORMAT_YV16, /** 16 bit YUV 422, Y, V, U plane */
61 IA_CSS_FRAME_FORMAT_YUV420, /** 12 bit YUV 420, Y, U, V plane */
62 IA_CSS_FRAME_FORMAT_YUV420_16, /** yuv420, 16 bits per subpixel */
63 IA_CSS_FRAME_FORMAT_YUV422, /** 16 bit YUV 422, Y, U, V plane */
64 IA_CSS_FRAME_FORMAT_YUV422_16, /** yuv422, 16 bits per subpixel */
65 IA_CSS_FRAME_FORMAT_UYVY, /** 16 bit YUV 422, UYVY interleaved */
66 IA_CSS_FRAME_FORMAT_YUYV, /** 16 bit YUV 422, YUYV interleaved */
67 IA_CSS_FRAME_FORMAT_YUV444, /** 24 bit YUV 444, Y, U, V plane */
68 IA_CSS_FRAME_FORMAT_YUV_LINE, /** Internal format, 2 y lines followed
69 by a uvinterleaved line */
70 IA_CSS_FRAME_FORMAT_RAW, /** RAW, 1 plane */
71 IA_CSS_FRAME_FORMAT_RGB565, /** 16 bit RGB, 1 plane. Each 3 sub
72 pixels are packed into one 16 bit
73 value, 5 bits for R, 6 bits for G
75 IA_CSS_FRAME_FORMAT_PLANAR_RGB888, /** 24 bit RGB, 3 planes */
76 IA_CSS_FRAME_FORMAT_RGBA888, /** 32 bit RGBA, 1 plane, A=Alpha
78 IA_CSS_FRAME_FORMAT_QPLANE6, /** Internal, for advanced ISP */
79 IA_CSS_FRAME_FORMAT_BINARY_8, /** byte stream, used for jpeg. For
80 frames of this type, we set the
81 height to 1 and the width to the
82 number of allocated bytes. */
83 IA_CSS_FRAME_FORMAT_MIPI, /** MIPI frame, 1 plane */
84 IA_CSS_FRAME_FORMAT_RAW_PACKED, /** RAW, 1 plane, packed */
85 IA_CSS_FRAME_FORMAT_CSI_MIPI_YUV420_8, /** 8 bit per Y/U/V.
87 interleaved even line */
88 IA_CSS_FRAME_FORMAT_CSI_MIPI_LEGACY_YUV420_8, /** Legacy YUV420. UY odd
90 IA_CSS_FRAME_FORMAT_CSI_MIPI_YUV420_10 /** 10 bit per Y/U/V. Y odd
91 line; UYVY interleaved
95 /* NOTE: IA_CSS_FRAME_FORMAT_NUM was purposely defined outside of enum type ia_css_frame_format, */
96 /* because of issues this would cause with the Clockwork code checking tool. */
97 #define IA_CSS_FRAME_FORMAT_NUM (IA_CSS_FRAME_FORMAT_CSI_MIPI_YUV420_10 + 1)
99 /* Number of valid output frame formats for ISP **/
100 #define IA_CSS_FRAME_OUT_FORMAT_NUM (IA_CSS_FRAME_FORMAT_RGBA888 + 1)
102 #endif /* __IA_CSS_FRAME_FORMAT_H */