Commit | Line | Data |
---|---|---|
bb677f3a AP |
1 | /* linux/drivers/media/video/s5p-jpeg/jpeg-core.h |
2 | * | |
3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. | |
4 | * http://www.samsung.com | |
5 | * | |
6 | * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #ifndef JPEG_CORE_H_ | |
14 | #define JPEG_CORE_H_ | |
15 | ||
16 | #include <media/v4l2-device.h> | |
275de24d | 17 | #include <media/v4l2-fh.h> |
15f4bc3b | 18 | #include <media/v4l2-ctrls.h> |
bb677f3a AP |
19 | |
20 | #define S5P_JPEG_M2M_NAME "s5p-jpeg" | |
21 | ||
22 | /* JPEG compression quality setting */ | |
23 | #define S5P_JPEG_COMPR_QUAL_BEST 0 | |
24 | #define S5P_JPEG_COMPR_QUAL_WORST 3 | |
25 | ||
26 | /* JPEG RGB to YCbCr conversion matrix coefficients */ | |
27 | #define S5P_JPEG_COEF11 0x4d | |
28 | #define S5P_JPEG_COEF12 0x97 | |
29 | #define S5P_JPEG_COEF13 0x1e | |
30 | #define S5P_JPEG_COEF21 0x2c | |
31 | #define S5P_JPEG_COEF22 0x57 | |
32 | #define S5P_JPEG_COEF23 0x83 | |
33 | #define S5P_JPEG_COEF31 0x83 | |
34 | #define S5P_JPEG_COEF32 0x6e | |
35 | #define S5P_JPEG_COEF33 0x13 | |
36 | ||
37 | /* a selection of JPEG markers */ | |
38 | #define TEM 0x01 | |
39 | #define SOF0 0xc0 | |
40 | #define RST 0xd0 | |
41 | #define SOI 0xd8 | |
42 | #define EOI 0xd9 | |
43 | #define DHP 0xde | |
44 | ||
45 | /* Flags that indicate a format can be used for capture/output */ | |
46 | #define MEM2MEM_CAPTURE (1 << 0) | |
47 | #define MEM2MEM_OUTPUT (1 << 1) | |
48 | ||
49 | /** | |
50 | * struct s5p_jpeg - JPEG IP abstraction | |
51 | * @lock: the mutex protecting this structure | |
15f4bc3b | 52 | * @slock: spinlock protecting the device contexts |
bb677f3a AP |
53 | * @v4l2_dev: v4l2 device for mem2mem mode |
54 | * @vfd_encoder: video device node for encoder mem2mem mode | |
55 | * @vfd_decoder: video device node for decoder mem2mem mode | |
56 | * @m2m_dev: v4l2 mem2mem device data | |
bb677f3a AP |
57 | * @regs: JPEG IP registers mapping |
58 | * @irq: JPEG IP irq | |
59 | * @clk: JPEG IP clock | |
60 | * @dev: JPEG IP struct device | |
61 | * @alloc_ctx: videobuf2 memory allocator's context | |
62 | */ | |
63 | struct s5p_jpeg { | |
64 | struct mutex lock; | |
15f4bc3b | 65 | struct spinlock slock; |
bb677f3a AP |
66 | |
67 | struct v4l2_device v4l2_dev; | |
68 | struct video_device *vfd_encoder; | |
69 | struct video_device *vfd_decoder; | |
70 | struct v4l2_m2m_dev *m2m_dev; | |
71 | ||
bb677f3a AP |
72 | void __iomem *regs; |
73 | unsigned int irq; | |
74 | struct clk *clk; | |
75 | struct device *dev; | |
76 | void *alloc_ctx; | |
77 | }; | |
78 | ||
79 | /** | |
80 | * struct jpeg_fmt - driver's internal color format data | |
81 | * @name: format descritpion | |
82 | * @fourcc: the fourcc code, 0 if not applicable | |
83 | * @depth: number of bits per pixel | |
84 | * @colplanes: number of color planes (1 for packed formats) | |
85 | * @h_align: horizontal alignment order (align to 2^h_align) | |
86 | * @v_align: vertical alignment order (align to 2^v_align) | |
87 | * @types: types of queue this format is applicable to | |
88 | */ | |
89 | struct s5p_jpeg_fmt { | |
90 | char *name; | |
91 | u32 fourcc; | |
92 | int depth; | |
93 | int colplanes; | |
94 | int h_align; | |
95 | int v_align; | |
96 | u32 types; | |
97 | }; | |
98 | ||
99 | /** | |
100 | * s5p_jpeg_q_data - parameters of one queue | |
101 | * @fmt: driver-specific format of this queue | |
102 | * @w: image width | |
103 | * @h: image height | |
104 | * @size: image buffer size in bytes | |
105 | */ | |
106 | struct s5p_jpeg_q_data { | |
107 | struct s5p_jpeg_fmt *fmt; | |
108 | u32 w; | |
109 | u32 h; | |
110 | u32 size; | |
111 | }; | |
112 | ||
113 | /** | |
114 | * s5p_jpeg_ctx - the device context data | |
115 | * @jpeg: JPEG IP device for this context | |
116 | * @mode: compression (encode) operation or decompression (decode) | |
117 | * @compr_quality: destination image quality in compression (encode) mode | |
118 | * @m2m_ctx: mem2mem device context | |
119 | * @out_q: source (output) queue information | |
120 | * @cap_fmt: destination (capture) queue queue information | |
121 | * @hdr_parsed: set if header has been parsed during decompression | |
15f4bc3b | 122 | * @ctrl_handler: controls handler |
bb677f3a AP |
123 | */ |
124 | struct s5p_jpeg_ctx { | |
125 | struct s5p_jpeg *jpeg; | |
126 | unsigned int mode; | |
15f4bc3b SN |
127 | unsigned short compr_quality; |
128 | unsigned short restart_interval; | |
129 | unsigned short subsampling; | |
bb677f3a AP |
130 | struct v4l2_m2m_ctx *m2m_ctx; |
131 | struct s5p_jpeg_q_data out_q; | |
132 | struct s5p_jpeg_q_data cap_q; | |
275de24d | 133 | struct v4l2_fh fh; |
bb677f3a | 134 | bool hdr_parsed; |
15f4bc3b | 135 | struct v4l2_ctrl_handler ctrl_handler; |
bb677f3a AP |
136 | }; |
137 | ||
138 | /** | |
139 | * s5p_jpeg_buffer - description of memory containing input JPEG data | |
140 | * @size: buffer size | |
141 | * @curr: current position in the buffer | |
142 | * @data: pointer to the data | |
143 | */ | |
144 | struct s5p_jpeg_buffer { | |
145 | unsigned long size; | |
146 | unsigned long curr; | |
147 | unsigned long data; | |
148 | }; | |
149 | ||
150 | #endif /* JPEG_CORE_H */ |