Mauro Carvalho Chehab | 2c3fb08 | 2012-08-14 17:31:16 -0300 | [diff] [blame] | 1 | /* linux/drivers/media/platform/s5p-jpeg/jpeg-core.h |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 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 | |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 16 | #include <linux/interrupt.h> |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 17 | #include <media/v4l2-device.h> |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 18 | #include <media/v4l2-fh.h> |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 19 | #include <media/v4l2-ctrls.h> |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 20 | |
| 21 | #define S5P_JPEG_M2M_NAME "s5p-jpeg" |
| 22 | |
| 23 | /* JPEG compression quality setting */ |
| 24 | #define S5P_JPEG_COMPR_QUAL_BEST 0 |
| 25 | #define S5P_JPEG_COMPR_QUAL_WORST 3 |
| 26 | |
| 27 | /* JPEG RGB to YCbCr conversion matrix coefficients */ |
| 28 | #define S5P_JPEG_COEF11 0x4d |
| 29 | #define S5P_JPEG_COEF12 0x97 |
| 30 | #define S5P_JPEG_COEF13 0x1e |
| 31 | #define S5P_JPEG_COEF21 0x2c |
| 32 | #define S5P_JPEG_COEF22 0x57 |
| 33 | #define S5P_JPEG_COEF23 0x83 |
| 34 | #define S5P_JPEG_COEF31 0x83 |
| 35 | #define S5P_JPEG_COEF32 0x6e |
| 36 | #define S5P_JPEG_COEF33 0x13 |
| 37 | |
| 38 | /* a selection of JPEG markers */ |
| 39 | #define TEM 0x01 |
| 40 | #define SOF0 0xc0 |
| 41 | #define RST 0xd0 |
| 42 | #define SOI 0xd8 |
| 43 | #define EOI 0xd9 |
| 44 | #define DHP 0xde |
| 45 | |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 46 | /* Flags that indicate a format can be used for capture/output */ |
| 47 | #define SJPEG_FMT_FLAG_ENC_CAPTURE (1 << 0) |
| 48 | #define SJPEG_FMT_FLAG_ENC_OUTPUT (1 << 1) |
| 49 | #define SJPEG_FMT_FLAG_DEC_CAPTURE (1 << 2) |
| 50 | #define SJPEG_FMT_FLAG_DEC_OUTPUT (1 << 3) |
| 51 | #define SJPEG_FMT_FLAG_S5P (1 << 4) |
| 52 | #define SJPEG_FMT_FLAG_EXYNOS4 (1 << 5) |
| 53 | #define SJPEG_FMT_RGB (1 << 6) |
| 54 | #define SJPEG_FMT_NON_RGB (1 << 7) |
| 55 | |
Jacek Anaszewski | 9f7b62d | 2013-12-18 09:32:50 -0300 | [diff] [blame] | 56 | #define S5P_JPEG_ENCODE 0 |
| 57 | #define S5P_JPEG_DECODE 1 |
| 58 | |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 59 | #define FMT_TYPE_OUTPUT 0 |
| 60 | #define FMT_TYPE_CAPTURE 1 |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 61 | |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 62 | #define SJPEG_SUBSAMPLING_444 0x11 |
| 63 | #define SJPEG_SUBSAMPLING_422 0x21 |
| 64 | #define SJPEG_SUBSAMPLING_420 0x22 |
Jacek Anaszewski | 9f7b62d | 2013-12-18 09:32:50 -0300 | [diff] [blame] | 65 | |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 66 | /* Version numbers */ |
| 67 | |
| 68 | #define SJPEG_S5P 1 |
| 69 | #define SJPEG_EXYNOS4 2 |
| 70 | |
| 71 | enum exynos4_jpeg_result { |
| 72 | OK_ENC_OR_DEC, |
| 73 | ERR_PROT, |
| 74 | ERR_DEC_INVALID_FORMAT, |
| 75 | ERR_MULTI_SCAN, |
| 76 | ERR_FRAME, |
| 77 | ERR_UNKNOWN, |
| 78 | }; |
| 79 | |
| 80 | enum exynos4_jpeg_img_quality_level { |
| 81 | QUALITY_LEVEL_1 = 0, /* high */ |
| 82 | QUALITY_LEVEL_2, |
| 83 | QUALITY_LEVEL_3, |
| 84 | QUALITY_LEVEL_4, /* low */ |
| 85 | }; |
Jacek Anaszewski | 9f7b62d | 2013-12-18 09:32:50 -0300 | [diff] [blame] | 86 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 87 | /** |
| 88 | * struct s5p_jpeg - JPEG IP abstraction |
| 89 | * @lock: the mutex protecting this structure |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 90 | * @slock: spinlock protecting the device contexts |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 91 | * @v4l2_dev: v4l2 device for mem2mem mode |
| 92 | * @vfd_encoder: video device node for encoder mem2mem mode |
| 93 | * @vfd_decoder: video device node for decoder mem2mem mode |
| 94 | * @m2m_dev: v4l2 mem2mem device data |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 95 | * @regs: JPEG IP registers mapping |
| 96 | * @irq: JPEG IP irq |
| 97 | * @clk: JPEG IP clock |
| 98 | * @dev: JPEG IP struct device |
| 99 | * @alloc_ctx: videobuf2 memory allocator's context |
| 100 | */ |
| 101 | struct s5p_jpeg { |
| 102 | struct mutex lock; |
Luis R. Rodriguez | a75831f | 2012-11-29 16:45:08 -0300 | [diff] [blame] | 103 | spinlock_t slock; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 104 | |
| 105 | struct v4l2_device v4l2_dev; |
| 106 | struct video_device *vfd_encoder; |
| 107 | struct video_device *vfd_decoder; |
| 108 | struct v4l2_m2m_dev *m2m_dev; |
| 109 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 110 | void __iomem *regs; |
| 111 | unsigned int irq; |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 112 | enum exynos4_jpeg_result irq_ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 113 | struct clk *clk; |
| 114 | struct device *dev; |
| 115 | void *alloc_ctx; |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 116 | struct s5p_jpeg_variant *variant; |
| 117 | }; |
| 118 | |
| 119 | struct s5p_jpeg_variant { |
Jacek Anaszewski | bf689bb | 2014-04-10 04:32:13 -0300 | [diff] [blame^] | 120 | unsigned int version; |
| 121 | unsigned int fmt_ver_flag; |
| 122 | struct v4l2_m2m_ops *m2m_ops; |
| 123 | irqreturn_t (*jpeg_irq)(int irq, void *priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 124 | }; |
| 125 | |
| 126 | /** |
| 127 | * struct jpeg_fmt - driver's internal color format data |
| 128 | * @name: format descritpion |
| 129 | * @fourcc: the fourcc code, 0 if not applicable |
| 130 | * @depth: number of bits per pixel |
| 131 | * @colplanes: number of color planes (1 for packed formats) |
| 132 | * @h_align: horizontal alignment order (align to 2^h_align) |
| 133 | * @v_align: vertical alignment order (align to 2^v_align) |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 134 | * @flags: flags describing format applicability |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 135 | */ |
| 136 | struct s5p_jpeg_fmt { |
| 137 | char *name; |
| 138 | u32 fourcc; |
| 139 | int depth; |
| 140 | int colplanes; |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 141 | int memplanes; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 142 | int h_align; |
| 143 | int v_align; |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 144 | int subsampling; |
| 145 | u32 flags; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 146 | }; |
| 147 | |
| 148 | /** |
| 149 | * s5p_jpeg_q_data - parameters of one queue |
| 150 | * @fmt: driver-specific format of this queue |
| 151 | * @w: image width |
| 152 | * @h: image height |
| 153 | * @size: image buffer size in bytes |
| 154 | */ |
| 155 | struct s5p_jpeg_q_data { |
| 156 | struct s5p_jpeg_fmt *fmt; |
| 157 | u32 w; |
| 158 | u32 h; |
| 159 | u32 size; |
| 160 | }; |
| 161 | |
| 162 | /** |
| 163 | * s5p_jpeg_ctx - the device context data |
| 164 | * @jpeg: JPEG IP device for this context |
| 165 | * @mode: compression (encode) operation or decompression (decode) |
| 166 | * @compr_quality: destination image quality in compression (encode) mode |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 167 | * @out_q: source (output) queue information |
| 168 | * @cap_fmt: destination (capture) queue queue information |
| 169 | * @hdr_parsed: set if header has been parsed during decompression |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 170 | * @ctrl_handler: controls handler |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 171 | */ |
| 172 | struct s5p_jpeg_ctx { |
| 173 | struct s5p_jpeg *jpeg; |
| 174 | unsigned int mode; |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 175 | unsigned short compr_quality; |
| 176 | unsigned short restart_interval; |
| 177 | unsigned short subsampling; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 178 | struct s5p_jpeg_q_data out_q; |
| 179 | struct s5p_jpeg_q_data cap_q; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 180 | struct v4l2_fh fh; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 181 | bool hdr_parsed; |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 182 | struct v4l2_ctrl_handler ctrl_handler; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 183 | }; |
| 184 | |
| 185 | /** |
| 186 | * s5p_jpeg_buffer - description of memory containing input JPEG data |
| 187 | * @size: buffer size |
| 188 | * @curr: current position in the buffer |
| 189 | * @data: pointer to the data |
| 190 | */ |
| 191 | struct s5p_jpeg_buffer { |
| 192 | unsigned long size; |
| 193 | unsigned long curr; |
| 194 | unsigned long data; |
| 195 | }; |
| 196 | |
Jacek Anaszewski | 80529ae | 2013-12-18 11:04:44 -0300 | [diff] [blame] | 197 | /** |
| 198 | * struct s5p_jpeg_addr - JPEG converter physical address set for DMA |
| 199 | * @y: luminance plane physical address |
| 200 | * @cb: Cb plane physical address |
| 201 | * @cr: Cr plane physical address |
| 202 | */ |
| 203 | struct s5p_jpeg_addr { |
| 204 | u32 y; |
| 205 | u32 cb; |
| 206 | u32 cr; |
| 207 | }; |
| 208 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 209 | #endif /* JPEG_CORE_H */ |