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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 | /* SPDX-License-Identifier: GPL-2.0-only */ /* linux/drivers/media/platform/samsung/s5p-jpeg/jpeg-core.h * * Copyright (c) 2011 Samsung Electronics Co., Ltd. * http://www.samsung.com * * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> */ #ifndef JPEG_CORE_H_ #define JPEG_CORE_H_ #include <linux/interrupt.h> #include <media/jpeg.h> #include <media/v4l2-device.h> #include <media/v4l2-fh.h> #include <media/v4l2-ctrls.h> #define S5P_JPEG_M2M_NAME "s5p-jpeg" #define JPEG_MAX_CLOCKS 4 /* JPEG compression quality setting */ #define S5P_JPEG_COMPR_QUAL_BEST 0 #define S5P_JPEG_COMPR_QUAL_WORST 3 /* JPEG RGB to YCbCr conversion matrix coefficients */ #define S5P_JPEG_COEF11 0x4d #define S5P_JPEG_COEF12 0x97 #define S5P_JPEG_COEF13 0x1e #define S5P_JPEG_COEF21 0x2c #define S5P_JPEG_COEF22 0x57 #define S5P_JPEG_COEF23 0x83 #define S5P_JPEG_COEF31 0x83 #define S5P_JPEG_COEF32 0x6e #define S5P_JPEG_COEF33 0x13 #define EXYNOS3250_IRQ_TIMEOUT 0x10000000 /* Flags that indicate a format can be used for capture/output */ #define SJPEG_FMT_FLAG_ENC_CAPTURE (1 << 0) #define SJPEG_FMT_FLAG_ENC_OUTPUT (1 << 1) #define SJPEG_FMT_FLAG_DEC_CAPTURE (1 << 2) #define SJPEG_FMT_FLAG_DEC_OUTPUT (1 << 3) #define SJPEG_FMT_FLAG_S5P (1 << 4) #define SJPEG_FMT_FLAG_EXYNOS3250 (1 << 5) #define SJPEG_FMT_FLAG_EXYNOS4 (1 << 6) #define SJPEG_FMT_RGB (1 << 7) #define SJPEG_FMT_NON_RGB (1 << 8) #define S5P_JPEG_ENCODE 0 #define S5P_JPEG_DECODE 1 #define S5P_JPEG_DISABLE -1 #define FMT_TYPE_OUTPUT 0 #define FMT_TYPE_CAPTURE 1 #define SJPEG_SUBSAMPLING_444 0x11 #define SJPEG_SUBSAMPLING_422 0x21 #define SJPEG_SUBSAMPLING_420 0x22 #define S5P_JPEG_MAX_MARKER 4 /* Version numbers */ enum sjpeg_version { SJPEG_S5P, SJPEG_EXYNOS3250, SJPEG_EXYNOS4, SJPEG_EXYNOS5420, SJPEG_EXYNOS5433, }; enum exynos4_jpeg_result { OK_ENC_OR_DEC, ERR_PROT, ERR_DEC_INVALID_FORMAT, ERR_MULTI_SCAN, ERR_FRAME, ERR_UNKNOWN, }; enum exynos4_jpeg_img_quality_level { QUALITY_LEVEL_1 = 0, /* high */ QUALITY_LEVEL_2, QUALITY_LEVEL_3, QUALITY_LEVEL_4, /* low */ }; enum s5p_jpeg_ctx_state { JPEGCTX_RUNNING = 0, JPEGCTX_RESOLUTION_CHANGE, }; /** * struct s5p_jpeg - JPEG IP abstraction * @lock: the mutex protecting this structure * @slock: spinlock protecting the device contexts * @v4l2_dev: v4l2 device for mem2mem mode * @vfd_encoder: video device node for encoder mem2mem mode * @vfd_decoder: video device node for decoder mem2mem mode * @m2m_dev: v4l2 mem2mem device data * @regs: JPEG IP registers mapping * @irq: JPEG IP irq * @irq_ret: JPEG IP irq result value * @clocks: JPEG IP clock(s) * @dev: JPEG IP struct device * @variant: driver variant to be used * @irq_status: interrupt flags set during single encode/decode * operation */ struct s5p_jpeg { struct mutex lock; spinlock_t slock; struct v4l2_device v4l2_dev; struct video_device *vfd_encoder; struct video_device *vfd_decoder; struct v4l2_m2m_dev *m2m_dev; void __iomem *regs; unsigned int irq; enum exynos4_jpeg_result irq_ret; struct clk *clocks[JPEG_MAX_CLOCKS]; struct device *dev; struct s5p_jpeg_variant *variant; u32 irq_status; }; struct s5p_jpeg_variant { unsigned int version; unsigned int fmt_ver_flag; unsigned int hw3250_compat:1; unsigned int htbl_reinit:1; unsigned int hw_ex4_compat:1; const struct v4l2_m2m_ops *m2m_ops; irqreturn_t (*jpeg_irq)(int irq, void *priv); const char *clk_names[JPEG_MAX_CLOCKS]; int num_clocks; }; /** * struct s5p_jpeg_fmt - driver's internal color format data * @fourcc: the fourcc code, 0 if not applicable * @depth: number of bits per pixel * @colplanes: number of color planes (1 for packed formats) * @memplanes: number of memory planes (1 for packed formats) * @h_align: horizontal alignment order (align to 2^h_align) * @v_align: vertical alignment order (align to 2^v_align) * @subsampling:subsampling of a raw format or a JPEG * @flags: flags describing format applicability */ struct s5p_jpeg_fmt { u32 fourcc; int depth; int colplanes; int memplanes; int h_align; int v_align; int subsampling; u32 flags; }; /** * struct s5p_jpeg_marker - collection of markers from jpeg header * @marker: markers' positions relative to the buffer beginning * @len: markers' payload lengths (without length field) * @n: number of markers in collection */ struct s5p_jpeg_marker { u32 marker[S5P_JPEG_MAX_MARKER]; u32 len[S5P_JPEG_MAX_MARKER]; u32 n; }; /** * struct s5p_jpeg_q_data - parameters of one queue * @fmt: driver-specific format of this queue * @w: image width * @h: image height * @sos: JPEG_MARKER_SOS's position relative to the buffer beginning * @dht: JPEG_MARKER_DHT' positions relative to the buffer beginning * @dqt: JPEG_MARKER_DQT' positions relative to the buffer beginning * @sof: JPEG_MARKER_SOF0's position relative to the buffer beginning * @sof_len: JPEG_MARKER_SOF0's payload length (without length field itself) * @size: image buffer size in bytes */ struct s5p_jpeg_q_data { struct s5p_jpeg_fmt *fmt; u32 w; u32 h; u32 sos; struct s5p_jpeg_marker dht; struct s5p_jpeg_marker dqt; u32 sof; u32 sof_len; u32 size; }; /** * struct s5p_jpeg_ctx - the device context data * @jpeg: JPEG IP device for this context * @mode: compression (encode) operation or decompression (decode) * @compr_quality: destination image quality in compression (encode) mode * @restart_interval: JPEG restart interval for JPEG encoding * @subsampling: subsampling of a raw format or a JPEG * @out_q: source (output) queue information * @cap_q: destination (capture) queue queue information * @scale_factor: scale factor for JPEG decoding * @crop_rect: a rectangle representing crop area of the output buffer * @fh: V4L2 file handle * @hdr_parsed: set if header has been parsed during decompression * @crop_altered: set if crop rectangle has been altered by the user space * @ctrl_handler: controls handler * @state: state of the context */ struct s5p_jpeg_ctx { struct s5p_jpeg *jpeg; unsigned int mode; unsigned short compr_quality; unsigned short restart_interval; unsigned short subsampling; struct s5p_jpeg_q_data out_q; struct s5p_jpeg_q_data cap_q; unsigned int scale_factor; struct v4l2_rect crop_rect; struct v4l2_fh fh; bool hdr_parsed; bool crop_altered; struct v4l2_ctrl_handler ctrl_handler; enum s5p_jpeg_ctx_state state; }; /** * struct s5p_jpeg_buffer - description of memory containing input JPEG data * @size: buffer size * @curr: current position in the buffer * @data: pointer to the data */ struct s5p_jpeg_buffer { unsigned long size; unsigned long curr; unsigned long data; }; /** * struct s5p_jpeg_addr - JPEG converter physical address set for DMA * @y: luminance plane physical address * @cb: Cb plane physical address * @cr: Cr plane physical address */ struct s5p_jpeg_addr { u32 y; u32 cb; u32 cr; }; #endif /* JPEG_CORE_H */ |