Mauro Carvalho Chehab | 2c3fb08 | 2012-08-14 17:31:16 -0300 | [diff] [blame] | 1 | /* linux/drivers/media/platform/s5p-jpeg/jpeg-core.c |
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 | #include <linux/clk.h> |
| 14 | #include <linux/err.h> |
| 15 | #include <linux/gfp.h> |
| 16 | #include <linux/interrupt.h> |
| 17 | #include <linux/io.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/module.h> |
Sylwester Nawrocki | f7074ab | 2013-08-18 16:14:27 -0300 | [diff] [blame^] | 20 | #include <linux/of.h> |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 21 | #include <linux/platform_device.h> |
| 22 | #include <linux/pm_runtime.h> |
| 23 | #include <linux/slab.h> |
| 24 | #include <linux/spinlock.h> |
| 25 | #include <linux/string.h> |
| 26 | #include <media/v4l2-mem2mem.h> |
| 27 | #include <media/v4l2-ioctl.h> |
| 28 | #include <media/videobuf2-core.h> |
| 29 | #include <media/videobuf2-dma-contig.h> |
| 30 | |
| 31 | #include "jpeg-core.h" |
| 32 | #include "jpeg-hw.h" |
| 33 | |
| 34 | static struct s5p_jpeg_fmt formats_enc[] = { |
| 35 | { |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 36 | .name = "JPEG JFIF", |
| 37 | .fourcc = V4L2_PIX_FMT_JPEG, |
| 38 | .colplanes = 1, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 39 | .types = MEM2MEM_CAPTURE, |
| 40 | }, |
| 41 | { |
| 42 | .name = "YUV 4:2:2 packed, YCbYCr", |
| 43 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 44 | .depth = 16, |
| 45 | .colplanes = 1, |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 46 | .types = MEM2MEM_OUTPUT, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 47 | }, |
| 48 | { |
| 49 | .name = "RGB565", |
| 50 | .fourcc = V4L2_PIX_FMT_RGB565, |
| 51 | .depth = 16, |
| 52 | .colplanes = 1, |
| 53 | .types = MEM2MEM_OUTPUT, |
| 54 | }, |
| 55 | }; |
| 56 | #define NUM_FORMATS_ENC ARRAY_SIZE(formats_enc) |
| 57 | |
| 58 | static struct s5p_jpeg_fmt formats_dec[] = { |
| 59 | { |
| 60 | .name = "YUV 4:2:0 planar, YCbCr", |
| 61 | .fourcc = V4L2_PIX_FMT_YUV420, |
| 62 | .depth = 12, |
| 63 | .colplanes = 3, |
| 64 | .h_align = 4, |
| 65 | .v_align = 4, |
| 66 | .types = MEM2MEM_CAPTURE, |
| 67 | }, |
| 68 | { |
| 69 | .name = "YUV 4:2:2 packed, YCbYCr", |
| 70 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 71 | .depth = 16, |
| 72 | .colplanes = 1, |
| 73 | .h_align = 4, |
| 74 | .v_align = 3, |
| 75 | .types = MEM2MEM_CAPTURE, |
| 76 | }, |
| 77 | { |
| 78 | .name = "JPEG JFIF", |
| 79 | .fourcc = V4L2_PIX_FMT_JPEG, |
| 80 | .colplanes = 1, |
| 81 | .types = MEM2MEM_OUTPUT, |
| 82 | }, |
| 83 | }; |
| 84 | #define NUM_FORMATS_DEC ARRAY_SIZE(formats_dec) |
| 85 | |
| 86 | static const unsigned char qtbl_luminance[4][64] = { |
| 87 | {/* level 1 - high quality */ |
| 88 | 8, 6, 6, 8, 12, 14, 16, 17, |
| 89 | 6, 6, 6, 8, 10, 13, 12, 15, |
| 90 | 6, 6, 7, 8, 13, 14, 18, 24, |
| 91 | 8, 8, 8, 14, 13, 19, 24, 35, |
| 92 | 12, 10, 13, 13, 20, 26, 34, 39, |
| 93 | 14, 13, 14, 19, 26, 34, 39, 39, |
| 94 | 16, 12, 18, 24, 34, 39, 39, 39, |
| 95 | 17, 15, 24, 35, 39, 39, 39, 39 |
| 96 | }, |
| 97 | {/* level 2 */ |
| 98 | 12, 8, 8, 12, 17, 21, 24, 23, |
| 99 | 8, 9, 9, 11, 15, 19, 18, 23, |
| 100 | 8, 9, 10, 12, 19, 20, 27, 36, |
| 101 | 12, 11, 12, 21, 20, 28, 36, 53, |
| 102 | 17, 15, 19, 20, 30, 39, 51, 59, |
| 103 | 21, 19, 20, 28, 39, 51, 59, 59, |
| 104 | 24, 18, 27, 36, 51, 59, 59, 59, |
| 105 | 23, 23, 36, 53, 59, 59, 59, 59 |
| 106 | }, |
| 107 | {/* level 3 */ |
| 108 | 16, 11, 11, 16, 23, 27, 31, 30, |
| 109 | 11, 12, 12, 15, 20, 23, 23, 30, |
| 110 | 11, 12, 13, 16, 23, 26, 35, 47, |
| 111 | 16, 15, 16, 23, 26, 37, 47, 64, |
| 112 | 23, 20, 23, 26, 39, 51, 64, 64, |
| 113 | 27, 23, 26, 37, 51, 64, 64, 64, |
| 114 | 31, 23, 35, 47, 64, 64, 64, 64, |
| 115 | 30, 30, 47, 64, 64, 64, 64, 64 |
| 116 | }, |
| 117 | {/*level 4 - low quality */ |
| 118 | 20, 16, 25, 39, 50, 46, 62, 68, |
| 119 | 16, 18, 23, 38, 38, 53, 65, 68, |
| 120 | 25, 23, 31, 38, 53, 65, 68, 68, |
| 121 | 39, 38, 38, 53, 65, 68, 68, 68, |
| 122 | 50, 38, 53, 65, 68, 68, 68, 68, |
| 123 | 46, 53, 65, 68, 68, 68, 68, 68, |
| 124 | 62, 65, 68, 68, 68, 68, 68, 68, |
| 125 | 68, 68, 68, 68, 68, 68, 68, 68 |
| 126 | } |
| 127 | }; |
| 128 | |
| 129 | static const unsigned char qtbl_chrominance[4][64] = { |
| 130 | {/* level 1 - high quality */ |
| 131 | 9, 8, 9, 11, 14, 17, 19, 24, |
| 132 | 8, 10, 9, 11, 14, 13, 17, 22, |
| 133 | 9, 9, 13, 14, 13, 15, 23, 26, |
| 134 | 11, 11, 14, 14, 15, 20, 26, 33, |
| 135 | 14, 14, 13, 15, 20, 24, 33, 39, |
| 136 | 17, 13, 15, 20, 24, 32, 39, 39, |
| 137 | 19, 17, 23, 26, 33, 39, 39, 39, |
| 138 | 24, 22, 26, 33, 39, 39, 39, 39 |
| 139 | }, |
| 140 | {/* level 2 */ |
| 141 | 13, 11, 13, 16, 20, 20, 29, 37, |
| 142 | 11, 14, 14, 14, 16, 20, 26, 32, |
| 143 | 13, 14, 15, 17, 20, 23, 35, 40, |
| 144 | 16, 14, 17, 21, 23, 30, 40, 50, |
| 145 | 20, 16, 20, 23, 30, 37, 50, 59, |
| 146 | 20, 20, 23, 30, 37, 48, 59, 59, |
| 147 | 29, 26, 35, 40, 50, 59, 59, 59, |
| 148 | 37, 32, 40, 50, 59, 59, 59, 59 |
| 149 | }, |
| 150 | {/* level 3 */ |
| 151 | 17, 15, 17, 21, 20, 26, 38, 48, |
| 152 | 15, 19, 18, 17, 20, 26, 35, 43, |
| 153 | 17, 18, 20, 22, 26, 30, 46, 53, |
| 154 | 21, 17, 22, 28, 30, 39, 53, 64, |
| 155 | 20, 20, 26, 30, 39, 48, 64, 64, |
| 156 | 26, 26, 30, 39, 48, 63, 64, 64, |
| 157 | 38, 35, 46, 53, 64, 64, 64, 64, |
| 158 | 48, 43, 53, 64, 64, 64, 64, 64 |
| 159 | }, |
| 160 | {/*level 4 - low quality */ |
| 161 | 21, 25, 32, 38, 54, 68, 68, 68, |
| 162 | 25, 28, 24, 38, 54, 68, 68, 68, |
| 163 | 32, 24, 32, 43, 66, 68, 68, 68, |
| 164 | 38, 38, 43, 53, 68, 68, 68, 68, |
| 165 | 54, 54, 66, 68, 68, 68, 68, 68, |
| 166 | 68, 68, 68, 68, 68, 68, 68, 68, |
| 167 | 68, 68, 68, 68, 68, 68, 68, 68, |
| 168 | 68, 68, 68, 68, 68, 68, 68, 68 |
| 169 | } |
| 170 | }; |
| 171 | |
| 172 | static const unsigned char hdctbl0[16] = { |
| 173 | 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 |
| 174 | }; |
| 175 | |
| 176 | static const unsigned char hdctblg0[12] = { |
| 177 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb |
| 178 | }; |
| 179 | static const unsigned char hactbl0[16] = { |
| 180 | 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d |
| 181 | }; |
| 182 | static const unsigned char hactblg0[162] = { |
| 183 | 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, |
| 184 | 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, |
| 185 | 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, |
| 186 | 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, |
| 187 | 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, |
| 188 | 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, |
| 189 | 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, |
| 190 | 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, |
| 191 | 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, |
| 192 | 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, |
| 193 | 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, |
| 194 | 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, |
| 195 | 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, |
| 196 | 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, |
| 197 | 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, |
| 198 | 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, |
| 199 | 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, |
| 200 | 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, |
| 201 | 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, |
| 202 | 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, |
| 203 | 0xf9, 0xfa |
| 204 | }; |
| 205 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 206 | static inline struct s5p_jpeg_ctx *ctrl_to_ctx(struct v4l2_ctrl *c) |
| 207 | { |
| 208 | return container_of(c->handler, struct s5p_jpeg_ctx, ctrl_handler); |
| 209 | } |
| 210 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 211 | static inline struct s5p_jpeg_ctx *fh_to_ctx(struct v4l2_fh *fh) |
| 212 | { |
| 213 | return container_of(fh, struct s5p_jpeg_ctx, fh); |
| 214 | } |
| 215 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 216 | static inline void jpeg_set_qtbl(void __iomem *regs, const unsigned char *qtbl, |
| 217 | unsigned long tab, int len) |
| 218 | { |
| 219 | int i; |
| 220 | |
| 221 | for (i = 0; i < len; i++) |
| 222 | writel((unsigned int)qtbl[i], regs + tab + (i * 0x04)); |
| 223 | } |
| 224 | |
| 225 | static inline void jpeg_set_qtbl_lum(void __iomem *regs, int quality) |
| 226 | { |
| 227 | /* this driver fills quantisation table 0 with data for luma */ |
| 228 | jpeg_set_qtbl(regs, qtbl_luminance[quality], S5P_JPG_QTBL_CONTENT(0), |
| 229 | ARRAY_SIZE(qtbl_luminance[quality])); |
| 230 | } |
| 231 | |
| 232 | static inline void jpeg_set_qtbl_chr(void __iomem *regs, int quality) |
| 233 | { |
| 234 | /* this driver fills quantisation table 1 with data for chroma */ |
| 235 | jpeg_set_qtbl(regs, qtbl_chrominance[quality], S5P_JPG_QTBL_CONTENT(1), |
| 236 | ARRAY_SIZE(qtbl_chrominance[quality])); |
| 237 | } |
| 238 | |
| 239 | static inline void jpeg_set_htbl(void __iomem *regs, const unsigned char *htbl, |
| 240 | unsigned long tab, int len) |
| 241 | { |
| 242 | int i; |
| 243 | |
| 244 | for (i = 0; i < len; i++) |
| 245 | writel((unsigned int)htbl[i], regs + tab + (i * 0x04)); |
| 246 | } |
| 247 | |
| 248 | static inline void jpeg_set_hdctbl(void __iomem *regs) |
| 249 | { |
| 250 | /* this driver fills table 0 for this component */ |
| 251 | jpeg_set_htbl(regs, hdctbl0, S5P_JPG_HDCTBL(0), ARRAY_SIZE(hdctbl0)); |
| 252 | } |
| 253 | |
| 254 | static inline void jpeg_set_hdctblg(void __iomem *regs) |
| 255 | { |
| 256 | /* this driver fills table 0 for this component */ |
| 257 | jpeg_set_htbl(regs, hdctblg0, S5P_JPG_HDCTBLG(0), ARRAY_SIZE(hdctblg0)); |
| 258 | } |
| 259 | |
| 260 | static inline void jpeg_set_hactbl(void __iomem *regs) |
| 261 | { |
| 262 | /* this driver fills table 0 for this component */ |
| 263 | jpeg_set_htbl(regs, hactbl0, S5P_JPG_HACTBL(0), ARRAY_SIZE(hactbl0)); |
| 264 | } |
| 265 | |
| 266 | static inline void jpeg_set_hactblg(void __iomem *regs) |
| 267 | { |
| 268 | /* this driver fills table 0 for this component */ |
| 269 | jpeg_set_htbl(regs, hactblg0, S5P_JPG_HACTBLG(0), ARRAY_SIZE(hactblg0)); |
| 270 | } |
| 271 | |
| 272 | /* |
| 273 | * ============================================================================ |
| 274 | * Device file operations |
| 275 | * ============================================================================ |
| 276 | */ |
| 277 | |
| 278 | static int queue_init(void *priv, struct vb2_queue *src_vq, |
| 279 | struct vb2_queue *dst_vq); |
| 280 | static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode, |
| 281 | __u32 pixelformat); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 282 | static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 283 | |
| 284 | static int s5p_jpeg_open(struct file *file) |
| 285 | { |
| 286 | struct s5p_jpeg *jpeg = video_drvdata(file); |
| 287 | struct video_device *vfd = video_devdata(file); |
| 288 | struct s5p_jpeg_ctx *ctx; |
| 289 | struct s5p_jpeg_fmt *out_fmt; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 290 | int ret = 0; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 291 | |
Sachin Kamat | b5146c9 | 2012-08-16 08:52:58 -0300 | [diff] [blame] | 292 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 293 | if (!ctx) |
| 294 | return -ENOMEM; |
| 295 | |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 296 | if (mutex_lock_interruptible(&jpeg->lock)) { |
| 297 | ret = -ERESTARTSYS; |
| 298 | goto free; |
| 299 | } |
| 300 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 301 | v4l2_fh_init(&ctx->fh, vfd); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 302 | /* Use separate control handler per file handle */ |
| 303 | ctx->fh.ctrl_handler = &ctx->ctrl_handler; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 304 | file->private_data = &ctx->fh; |
| 305 | v4l2_fh_add(&ctx->fh); |
| 306 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 307 | ctx->jpeg = jpeg; |
| 308 | if (vfd == jpeg->vfd_encoder) { |
| 309 | ctx->mode = S5P_JPEG_ENCODE; |
| 310 | out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_RGB565); |
| 311 | } else { |
| 312 | ctx->mode = S5P_JPEG_DECODE; |
| 313 | out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_JPEG); |
| 314 | } |
| 315 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 316 | ret = s5p_jpeg_controls_create(ctx); |
| 317 | if (ret < 0) |
| 318 | goto error; |
| 319 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 320 | ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init); |
| 321 | if (IS_ERR(ctx->fh.m2m_ctx)) { |
| 322 | ret = PTR_ERR(ctx->fh.m2m_ctx); |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 323 | goto error; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 324 | } |
| 325 | |
| 326 | ctx->out_q.fmt = out_fmt; |
| 327 | ctx->cap_q.fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_YUYV); |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 328 | mutex_unlock(&jpeg->lock); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 329 | return 0; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 330 | |
| 331 | error: |
| 332 | v4l2_fh_del(&ctx->fh); |
| 333 | v4l2_fh_exit(&ctx->fh); |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 334 | mutex_unlock(&jpeg->lock); |
| 335 | free: |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 336 | kfree(ctx); |
| 337 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 338 | } |
| 339 | |
| 340 | static int s5p_jpeg_release(struct file *file) |
| 341 | { |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 342 | struct s5p_jpeg *jpeg = video_drvdata(file); |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 343 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 344 | |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 345 | mutex_lock(&jpeg->lock); |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 346 | v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 347 | mutex_unlock(&jpeg->lock); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 348 | v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 349 | v4l2_fh_del(&ctx->fh); |
| 350 | v4l2_fh_exit(&ctx->fh); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 351 | kfree(ctx); |
| 352 | |
| 353 | return 0; |
| 354 | } |
| 355 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 356 | static const struct v4l2_file_operations s5p_jpeg_fops = { |
| 357 | .owner = THIS_MODULE, |
| 358 | .open = s5p_jpeg_open, |
| 359 | .release = s5p_jpeg_release, |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 360 | .poll = v4l2_m2m_fop_poll, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 361 | .unlocked_ioctl = video_ioctl2, |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 362 | .mmap = v4l2_m2m_fop_mmap, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 363 | }; |
| 364 | |
| 365 | /* |
| 366 | * ============================================================================ |
| 367 | * video ioctl operations |
| 368 | * ============================================================================ |
| 369 | */ |
| 370 | |
| 371 | static int get_byte(struct s5p_jpeg_buffer *buf) |
| 372 | { |
| 373 | if (buf->curr >= buf->size) |
| 374 | return -1; |
| 375 | |
| 376 | return ((unsigned char *)buf->data)[buf->curr++]; |
| 377 | } |
| 378 | |
| 379 | static int get_word_be(struct s5p_jpeg_buffer *buf, unsigned int *word) |
| 380 | { |
| 381 | unsigned int temp; |
| 382 | int byte; |
| 383 | |
| 384 | byte = get_byte(buf); |
| 385 | if (byte == -1) |
| 386 | return -1; |
| 387 | temp = byte << 8; |
| 388 | byte = get_byte(buf); |
| 389 | if (byte == -1) |
| 390 | return -1; |
| 391 | *word = (unsigned int)byte | temp; |
| 392 | return 0; |
| 393 | } |
| 394 | |
| 395 | static void skip(struct s5p_jpeg_buffer *buf, long len) |
| 396 | { |
| 397 | if (len <= 0) |
| 398 | return; |
| 399 | |
| 400 | while (len--) |
| 401 | get_byte(buf); |
| 402 | } |
| 403 | |
| 404 | static bool s5p_jpeg_parse_hdr(struct s5p_jpeg_q_data *result, |
| 405 | unsigned long buffer, unsigned long size) |
| 406 | { |
| 407 | int c, components, notfound; |
| 408 | unsigned int height, width, word; |
| 409 | long length; |
| 410 | struct s5p_jpeg_buffer jpeg_buffer; |
| 411 | |
| 412 | jpeg_buffer.size = size; |
| 413 | jpeg_buffer.data = buffer; |
| 414 | jpeg_buffer.curr = 0; |
| 415 | |
| 416 | notfound = 1; |
| 417 | while (notfound) { |
| 418 | c = get_byte(&jpeg_buffer); |
| 419 | if (c == -1) |
| 420 | break; |
| 421 | if (c != 0xff) |
| 422 | continue; |
| 423 | do |
| 424 | c = get_byte(&jpeg_buffer); |
| 425 | while (c == 0xff); |
| 426 | if (c == -1) |
| 427 | break; |
| 428 | if (c == 0) |
| 429 | continue; |
| 430 | length = 0; |
| 431 | switch (c) { |
| 432 | /* SOF0: baseline JPEG */ |
| 433 | case SOF0: |
| 434 | if (get_word_be(&jpeg_buffer, &word)) |
| 435 | break; |
| 436 | if (get_byte(&jpeg_buffer) == -1) |
| 437 | break; |
| 438 | if (get_word_be(&jpeg_buffer, &height)) |
| 439 | break; |
| 440 | if (get_word_be(&jpeg_buffer, &width)) |
| 441 | break; |
| 442 | components = get_byte(&jpeg_buffer); |
| 443 | if (components == -1) |
| 444 | break; |
| 445 | notfound = 0; |
| 446 | |
| 447 | skip(&jpeg_buffer, components * 3); |
| 448 | break; |
| 449 | |
| 450 | /* skip payload-less markers */ |
| 451 | case RST ... RST + 7: |
| 452 | case SOI: |
| 453 | case EOI: |
| 454 | case TEM: |
| 455 | break; |
| 456 | |
| 457 | /* skip uninteresting payload markers */ |
| 458 | default: |
| 459 | if (get_word_be(&jpeg_buffer, &word)) |
| 460 | break; |
| 461 | length = (long)word - 2; |
| 462 | skip(&jpeg_buffer, length); |
| 463 | break; |
| 464 | } |
| 465 | } |
| 466 | result->w = width; |
| 467 | result->h = height; |
| 468 | result->size = components; |
| 469 | return !notfound; |
| 470 | } |
| 471 | |
| 472 | static int s5p_jpeg_querycap(struct file *file, void *priv, |
| 473 | struct v4l2_capability *cap) |
| 474 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 475 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 476 | |
| 477 | if (ctx->mode == S5P_JPEG_ENCODE) { |
| 478 | strlcpy(cap->driver, S5P_JPEG_M2M_NAME " encoder", |
| 479 | sizeof(cap->driver)); |
| 480 | strlcpy(cap->card, S5P_JPEG_M2M_NAME " encoder", |
| 481 | sizeof(cap->card)); |
| 482 | } else { |
| 483 | strlcpy(cap->driver, S5P_JPEG_M2M_NAME " decoder", |
| 484 | sizeof(cap->driver)); |
| 485 | strlcpy(cap->card, S5P_JPEG_M2M_NAME " decoder", |
| 486 | sizeof(cap->card)); |
| 487 | } |
| 488 | cap->bus_info[0] = 0; |
Sylwester Nawrocki | f0476a8 | 2012-07-26 09:30:00 -0300 | [diff] [blame] | 489 | /* |
| 490 | * This is only a mem-to-mem video device. The capture and output |
| 491 | * device capability flags are left only for backward compatibility |
| 492 | * and are scheduled for removal. |
| 493 | */ |
| 494 | cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M | |
| 495 | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 496 | return 0; |
| 497 | } |
| 498 | |
| 499 | static int enum_fmt(struct s5p_jpeg_fmt *formats, int n, |
| 500 | struct v4l2_fmtdesc *f, u32 type) |
| 501 | { |
| 502 | int i, num = 0; |
| 503 | |
| 504 | for (i = 0; i < n; ++i) { |
| 505 | if (formats[i].types & type) { |
| 506 | /* index-th format of type type found ? */ |
| 507 | if (num == f->index) |
| 508 | break; |
| 509 | /* Correct type but haven't reached our index yet, |
| 510 | * just increment per-type index */ |
| 511 | ++num; |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | /* Format not found */ |
| 516 | if (i >= n) |
| 517 | return -EINVAL; |
| 518 | |
| 519 | strlcpy(f->description, formats[i].name, sizeof(f->description)); |
| 520 | f->pixelformat = formats[i].fourcc; |
| 521 | |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | static int s5p_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, |
| 526 | struct v4l2_fmtdesc *f) |
| 527 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 528 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 529 | |
| 530 | if (ctx->mode == S5P_JPEG_ENCODE) |
| 531 | return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, |
| 532 | MEM2MEM_CAPTURE); |
| 533 | |
| 534 | return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_CAPTURE); |
| 535 | } |
| 536 | |
| 537 | static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv, |
| 538 | struct v4l2_fmtdesc *f) |
| 539 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 540 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 541 | |
| 542 | if (ctx->mode == S5P_JPEG_ENCODE) |
| 543 | return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, |
| 544 | MEM2MEM_OUTPUT); |
| 545 | |
| 546 | return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_OUTPUT); |
| 547 | } |
| 548 | |
| 549 | static struct s5p_jpeg_q_data *get_q_data(struct s5p_jpeg_ctx *ctx, |
| 550 | enum v4l2_buf_type type) |
| 551 | { |
| 552 | if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT) |
| 553 | return &ctx->out_q; |
| 554 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 555 | return &ctx->cap_q; |
| 556 | |
| 557 | return NULL; |
| 558 | } |
| 559 | |
| 560 | static int s5p_jpeg_g_fmt(struct file *file, void *priv, struct v4l2_format *f) |
| 561 | { |
| 562 | struct vb2_queue *vq; |
| 563 | struct s5p_jpeg_q_data *q_data = NULL; |
| 564 | struct v4l2_pix_format *pix = &f->fmt.pix; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 565 | struct s5p_jpeg_ctx *ct = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 566 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 567 | vq = v4l2_m2m_get_vq(ct->fh.m2m_ctx, f->type); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 568 | if (!vq) |
| 569 | return -EINVAL; |
| 570 | |
| 571 | if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && |
| 572 | ct->mode == S5P_JPEG_DECODE && !ct->hdr_parsed) |
| 573 | return -EINVAL; |
| 574 | q_data = get_q_data(ct, f->type); |
| 575 | BUG_ON(q_data == NULL); |
| 576 | |
| 577 | pix->width = q_data->w; |
| 578 | pix->height = q_data->h; |
| 579 | pix->field = V4L2_FIELD_NONE; |
| 580 | pix->pixelformat = q_data->fmt->fourcc; |
| 581 | pix->bytesperline = 0; |
| 582 | if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) { |
| 583 | u32 bpl = q_data->w; |
| 584 | if (q_data->fmt->colplanes == 1) |
| 585 | bpl = (bpl * q_data->fmt->depth) >> 3; |
| 586 | pix->bytesperline = bpl; |
| 587 | } |
| 588 | pix->sizeimage = q_data->size; |
| 589 | |
| 590 | return 0; |
| 591 | } |
| 592 | |
| 593 | static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode, |
| 594 | u32 pixelformat) |
| 595 | { |
| 596 | unsigned int k; |
| 597 | struct s5p_jpeg_fmt *formats; |
| 598 | int n; |
| 599 | |
| 600 | if (mode == S5P_JPEG_ENCODE) { |
| 601 | formats = formats_enc; |
| 602 | n = NUM_FORMATS_ENC; |
| 603 | } else { |
| 604 | formats = formats_dec; |
| 605 | n = NUM_FORMATS_DEC; |
| 606 | } |
| 607 | |
| 608 | for (k = 0; k < n; k++) { |
| 609 | struct s5p_jpeg_fmt *fmt = &formats[k]; |
| 610 | if (fmt->fourcc == pixelformat) |
| 611 | return fmt; |
| 612 | } |
| 613 | |
| 614 | return NULL; |
| 615 | |
| 616 | } |
| 617 | |
| 618 | static void jpeg_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax, |
| 619 | unsigned int walign, |
| 620 | u32 *h, unsigned int hmin, unsigned int hmax, |
| 621 | unsigned int halign) |
| 622 | { |
| 623 | int width, height, w_step, h_step; |
| 624 | |
| 625 | width = *w; |
| 626 | height = *h; |
| 627 | |
| 628 | w_step = 1 << walign; |
| 629 | h_step = 1 << halign; |
| 630 | v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); |
| 631 | |
| 632 | if (*w < width && (*w + w_step) < wmax) |
| 633 | *w += w_step; |
| 634 | if (*h < height && (*h + h_step) < hmax) |
| 635 | *h += h_step; |
| 636 | |
| 637 | } |
| 638 | |
| 639 | static int vidioc_try_fmt(struct v4l2_format *f, struct s5p_jpeg_fmt *fmt, |
| 640 | struct s5p_jpeg_ctx *ctx, int q_type) |
| 641 | { |
| 642 | struct v4l2_pix_format *pix = &f->fmt.pix; |
| 643 | |
| 644 | if (pix->field == V4L2_FIELD_ANY) |
| 645 | pix->field = V4L2_FIELD_NONE; |
| 646 | else if (pix->field != V4L2_FIELD_NONE) |
| 647 | return -EINVAL; |
| 648 | |
| 649 | /* V4L2 specification suggests the driver corrects the format struct |
| 650 | * if any of the dimensions is unsupported */ |
| 651 | if (q_type == MEM2MEM_OUTPUT) |
| 652 | jpeg_bound_align_image(&pix->width, S5P_JPEG_MIN_WIDTH, |
| 653 | S5P_JPEG_MAX_WIDTH, 0, |
| 654 | &pix->height, S5P_JPEG_MIN_HEIGHT, |
| 655 | S5P_JPEG_MAX_HEIGHT, 0); |
| 656 | else |
| 657 | jpeg_bound_align_image(&pix->width, S5P_JPEG_MIN_WIDTH, |
| 658 | S5P_JPEG_MAX_WIDTH, fmt->h_align, |
| 659 | &pix->height, S5P_JPEG_MIN_HEIGHT, |
| 660 | S5P_JPEG_MAX_HEIGHT, fmt->v_align); |
| 661 | |
| 662 | if (fmt->fourcc == V4L2_PIX_FMT_JPEG) { |
| 663 | if (pix->sizeimage <= 0) |
| 664 | pix->sizeimage = PAGE_SIZE; |
| 665 | pix->bytesperline = 0; |
| 666 | } else { |
| 667 | u32 bpl = pix->bytesperline; |
| 668 | |
| 669 | if (fmt->colplanes > 1 && bpl < pix->width) |
| 670 | bpl = pix->width; /* planar */ |
| 671 | |
| 672 | if (fmt->colplanes == 1 && /* packed */ |
| 673 | (bpl << 3) * fmt->depth < pix->width) |
| 674 | bpl = (pix->width * fmt->depth) >> 3; |
| 675 | |
| 676 | pix->bytesperline = bpl; |
| 677 | pix->sizeimage = (pix->width * pix->height * fmt->depth) >> 3; |
| 678 | } |
| 679 | |
| 680 | return 0; |
| 681 | } |
| 682 | |
| 683 | static int s5p_jpeg_try_fmt_vid_cap(struct file *file, void *priv, |
| 684 | struct v4l2_format *f) |
| 685 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 686 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 687 | struct s5p_jpeg_fmt *fmt; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 688 | |
| 689 | fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat); |
| 690 | if (!fmt || !(fmt->types & MEM2MEM_CAPTURE)) { |
| 691 | v4l2_err(&ctx->jpeg->v4l2_dev, |
| 692 | "Fourcc format (0x%08x) invalid.\n", |
| 693 | f->fmt.pix.pixelformat); |
| 694 | return -EINVAL; |
| 695 | } |
| 696 | |
| 697 | return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_CAPTURE); |
| 698 | } |
| 699 | |
| 700 | static int s5p_jpeg_try_fmt_vid_out(struct file *file, void *priv, |
| 701 | struct v4l2_format *f) |
| 702 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 703 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 704 | struct s5p_jpeg_fmt *fmt; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 705 | |
| 706 | fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat); |
| 707 | if (!fmt || !(fmt->types & MEM2MEM_OUTPUT)) { |
| 708 | v4l2_err(&ctx->jpeg->v4l2_dev, |
| 709 | "Fourcc format (0x%08x) invalid.\n", |
| 710 | f->fmt.pix.pixelformat); |
| 711 | return -EINVAL; |
| 712 | } |
| 713 | |
| 714 | return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_OUTPUT); |
| 715 | } |
| 716 | |
| 717 | static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx *ct, struct v4l2_format *f) |
| 718 | { |
| 719 | struct vb2_queue *vq; |
| 720 | struct s5p_jpeg_q_data *q_data = NULL; |
| 721 | struct v4l2_pix_format *pix = &f->fmt.pix; |
| 722 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 723 | vq = v4l2_m2m_get_vq(ct->fh.m2m_ctx, f->type); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 724 | if (!vq) |
| 725 | return -EINVAL; |
| 726 | |
| 727 | q_data = get_q_data(ct, f->type); |
| 728 | BUG_ON(q_data == NULL); |
| 729 | |
| 730 | if (vb2_is_busy(vq)) { |
| 731 | v4l2_err(&ct->jpeg->v4l2_dev, "%s queue busy\n", __func__); |
| 732 | return -EBUSY; |
| 733 | } |
| 734 | |
| 735 | q_data->fmt = s5p_jpeg_find_format(ct->mode, pix->pixelformat); |
| 736 | q_data->w = pix->width; |
| 737 | q_data->h = pix->height; |
| 738 | if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) |
| 739 | q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; |
| 740 | else |
| 741 | q_data->size = pix->sizeimage; |
| 742 | |
| 743 | return 0; |
| 744 | } |
| 745 | |
| 746 | static int s5p_jpeg_s_fmt_vid_cap(struct file *file, void *priv, |
| 747 | struct v4l2_format *f) |
| 748 | { |
| 749 | int ret; |
| 750 | |
| 751 | ret = s5p_jpeg_try_fmt_vid_cap(file, priv, f); |
| 752 | if (ret) |
| 753 | return ret; |
| 754 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 755 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | static int s5p_jpeg_s_fmt_vid_out(struct file *file, void *priv, |
| 759 | struct v4l2_format *f) |
| 760 | { |
| 761 | int ret; |
| 762 | |
| 763 | ret = s5p_jpeg_try_fmt_vid_out(file, priv, f); |
| 764 | if (ret) |
| 765 | return ret; |
| 766 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 767 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 768 | } |
| 769 | |
Sachin Kamat | 9f3bd32 | 2012-05-10 03:38:40 -0300 | [diff] [blame] | 770 | static int s5p_jpeg_g_selection(struct file *file, void *priv, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 771 | struct v4l2_selection *s) |
| 772 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 773 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 774 | |
| 775 | if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| 776 | s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 777 | return -EINVAL; |
| 778 | |
| 779 | /* For JPEG blob active == default == bounds */ |
| 780 | switch (s->target) { |
Sylwester Nawrocki | c133482 | 2012-05-20 11:17:12 -0300 | [diff] [blame] | 781 | case V4L2_SEL_TGT_CROP: |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 782 | case V4L2_SEL_TGT_CROP_BOUNDS: |
| 783 | case V4L2_SEL_TGT_CROP_DEFAULT: |
Sylwester Nawrocki | c133482 | 2012-05-20 11:17:12 -0300 | [diff] [blame] | 784 | case V4L2_SEL_TGT_COMPOSE: |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 785 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: |
| 786 | s->r.width = ctx->out_q.w; |
| 787 | s->r.height = ctx->out_q.h; |
| 788 | break; |
| 789 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: |
| 790 | case V4L2_SEL_TGT_COMPOSE_PADDED: |
| 791 | s->r.width = ctx->cap_q.w; |
| 792 | s->r.height = ctx->cap_q.h; |
| 793 | break; |
| 794 | default: |
| 795 | return -EINVAL; |
| 796 | } |
| 797 | s->r.left = 0; |
| 798 | s->r.top = 0; |
| 799 | return 0; |
| 800 | } |
| 801 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 802 | /* |
| 803 | * V4L2 controls |
| 804 | */ |
| 805 | |
| 806 | static int s5p_jpeg_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 807 | { |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 808 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
| 809 | struct s5p_jpeg *jpeg = ctx->jpeg; |
| 810 | unsigned long flags; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 811 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 812 | switch (ctrl->id) { |
| 813 | case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: |
| 814 | spin_lock_irqsave(&jpeg->slock, flags); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 815 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 816 | WARN_ON(ctx->subsampling > S5P_SUBSAMPLING_MODE_GRAY); |
| 817 | if (ctx->subsampling > 2) |
| 818 | ctrl->val = V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY; |
| 819 | else |
| 820 | ctrl->val = ctx->subsampling; |
| 821 | spin_unlock_irqrestore(&jpeg->slock, flags); |
| 822 | break; |
| 823 | } |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 824 | |
| 825 | return 0; |
| 826 | } |
| 827 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 828 | static int s5p_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 829 | { |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 830 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
| 831 | unsigned long flags; |
| 832 | |
| 833 | spin_lock_irqsave(&ctx->jpeg->slock, flags); |
| 834 | |
| 835 | switch (ctrl->id) { |
| 836 | case V4L2_CID_JPEG_COMPRESSION_QUALITY: |
| 837 | ctx->compr_quality = S5P_JPEG_COMPR_QUAL_WORST - ctrl->val; |
| 838 | break; |
| 839 | case V4L2_CID_JPEG_RESTART_INTERVAL: |
| 840 | ctx->restart_interval = ctrl->val; |
| 841 | break; |
| 842 | case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: |
| 843 | ctx->subsampling = ctrl->val; |
| 844 | break; |
| 845 | } |
| 846 | |
| 847 | spin_unlock_irqrestore(&ctx->jpeg->slock, flags); |
| 848 | return 0; |
| 849 | } |
| 850 | |
| 851 | static const struct v4l2_ctrl_ops s5p_jpeg_ctrl_ops = { |
| 852 | .g_volatile_ctrl = s5p_jpeg_g_volatile_ctrl, |
| 853 | .s_ctrl = s5p_jpeg_s_ctrl, |
| 854 | }; |
| 855 | |
| 856 | static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx) |
| 857 | { |
| 858 | unsigned int mask = ~0x27; /* 444, 422, 420, GRAY */ |
| 859 | struct v4l2_ctrl *ctrl; |
| 860 | |
| 861 | v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3); |
| 862 | |
| 863 | if (ctx->mode == S5P_JPEG_ENCODE) { |
| 864 | v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| 865 | V4L2_CID_JPEG_COMPRESSION_QUALITY, |
| 866 | 0, 3, 1, 3); |
| 867 | |
| 868 | v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| 869 | V4L2_CID_JPEG_RESTART_INTERVAL, |
| 870 | 0, 3, 0xffff, 0); |
| 871 | mask = ~0x06; /* 422, 420 */ |
| 872 | } |
| 873 | |
| 874 | ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| 875 | V4L2_CID_JPEG_CHROMA_SUBSAMPLING, |
| 876 | V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY, mask, |
| 877 | V4L2_JPEG_CHROMA_SUBSAMPLING_422); |
| 878 | |
| 879 | if (ctx->ctrl_handler.error) |
| 880 | return ctx->ctrl_handler.error; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 881 | |
| 882 | if (ctx->mode == S5P_JPEG_DECODE) |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 883 | ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE | |
| 884 | V4L2_CTRL_FLAG_READ_ONLY; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 885 | return 0; |
| 886 | } |
| 887 | |
| 888 | static const struct v4l2_ioctl_ops s5p_jpeg_ioctl_ops = { |
| 889 | .vidioc_querycap = s5p_jpeg_querycap, |
| 890 | |
| 891 | .vidioc_enum_fmt_vid_cap = s5p_jpeg_enum_fmt_vid_cap, |
| 892 | .vidioc_enum_fmt_vid_out = s5p_jpeg_enum_fmt_vid_out, |
| 893 | |
| 894 | .vidioc_g_fmt_vid_cap = s5p_jpeg_g_fmt, |
| 895 | .vidioc_g_fmt_vid_out = s5p_jpeg_g_fmt, |
| 896 | |
| 897 | .vidioc_try_fmt_vid_cap = s5p_jpeg_try_fmt_vid_cap, |
| 898 | .vidioc_try_fmt_vid_out = s5p_jpeg_try_fmt_vid_out, |
| 899 | |
| 900 | .vidioc_s_fmt_vid_cap = s5p_jpeg_s_fmt_vid_cap, |
| 901 | .vidioc_s_fmt_vid_out = s5p_jpeg_s_fmt_vid_out, |
| 902 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 903 | .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, |
| 904 | .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, |
| 905 | .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, |
| 906 | .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 907 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 908 | .vidioc_streamon = v4l2_m2m_ioctl_streamon, |
| 909 | .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 910 | |
| 911 | .vidioc_g_selection = s5p_jpeg_g_selection, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 912 | }; |
| 913 | |
| 914 | /* |
| 915 | * ============================================================================ |
| 916 | * mem2mem callbacks |
| 917 | * ============================================================================ |
| 918 | */ |
| 919 | |
| 920 | static void s5p_jpeg_device_run(void *priv) |
| 921 | { |
| 922 | struct s5p_jpeg_ctx *ctx = priv; |
| 923 | struct s5p_jpeg *jpeg = ctx->jpeg; |
| 924 | struct vb2_buffer *src_buf, *dst_buf; |
| 925 | unsigned long src_addr, dst_addr; |
| 926 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 927 | src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| 928 | dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 929 | src_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); |
| 930 | dst_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0); |
| 931 | |
| 932 | jpeg_reset(jpeg->regs); |
| 933 | jpeg_poweron(jpeg->regs); |
| 934 | jpeg_proc_mode(jpeg->regs, ctx->mode); |
| 935 | if (ctx->mode == S5P_JPEG_ENCODE) { |
| 936 | if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB565) |
| 937 | jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_565); |
| 938 | else |
| 939 | jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_422); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 940 | jpeg_subsampling_mode(jpeg->regs, ctx->subsampling); |
| 941 | jpeg_dri(jpeg->regs, ctx->restart_interval); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 942 | jpeg_x(jpeg->regs, ctx->out_q.w); |
| 943 | jpeg_y(jpeg->regs, ctx->out_q.h); |
| 944 | jpeg_imgadr(jpeg->regs, src_addr); |
| 945 | jpeg_jpgadr(jpeg->regs, dst_addr); |
| 946 | |
| 947 | /* ultimately comes from sizeimage from userspace */ |
| 948 | jpeg_enc_stream_int(jpeg->regs, ctx->cap_q.size); |
| 949 | |
| 950 | /* JPEG RGB to YCbCr conversion matrix */ |
| 951 | jpeg_coef(jpeg->regs, 1, 1, S5P_JPEG_COEF11); |
| 952 | jpeg_coef(jpeg->regs, 1, 2, S5P_JPEG_COEF12); |
| 953 | jpeg_coef(jpeg->regs, 1, 3, S5P_JPEG_COEF13); |
| 954 | jpeg_coef(jpeg->regs, 2, 1, S5P_JPEG_COEF21); |
| 955 | jpeg_coef(jpeg->regs, 2, 2, S5P_JPEG_COEF22); |
| 956 | jpeg_coef(jpeg->regs, 2, 3, S5P_JPEG_COEF23); |
| 957 | jpeg_coef(jpeg->regs, 3, 1, S5P_JPEG_COEF31); |
| 958 | jpeg_coef(jpeg->regs, 3, 2, S5P_JPEG_COEF32); |
| 959 | jpeg_coef(jpeg->regs, 3, 3, S5P_JPEG_COEF33); |
| 960 | |
| 961 | /* |
| 962 | * JPEG IP allows storing 4 quantization tables |
| 963 | * We fill table 0 for luma and table 1 for chroma |
| 964 | */ |
| 965 | jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality); |
| 966 | jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality); |
| 967 | /* use table 0 for Y */ |
| 968 | jpeg_qtbl(jpeg->regs, 1, 0); |
| 969 | /* use table 1 for Cb and Cr*/ |
| 970 | jpeg_qtbl(jpeg->regs, 2, 1); |
| 971 | jpeg_qtbl(jpeg->regs, 3, 1); |
| 972 | |
| 973 | /* Y, Cb, Cr use Huffman table 0 */ |
| 974 | jpeg_htbl_ac(jpeg->regs, 1); |
| 975 | jpeg_htbl_dc(jpeg->regs, 1); |
| 976 | jpeg_htbl_ac(jpeg->regs, 2); |
| 977 | jpeg_htbl_dc(jpeg->regs, 2); |
| 978 | jpeg_htbl_ac(jpeg->regs, 3); |
| 979 | jpeg_htbl_dc(jpeg->regs, 3); |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 980 | } else { /* S5P_JPEG_DECODE */ |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 981 | jpeg_rst_int_enable(jpeg->regs, true); |
| 982 | jpeg_data_num_int_enable(jpeg->regs, true); |
| 983 | jpeg_final_mcu_num_int_enable(jpeg->regs, true); |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 984 | if (ctx->cap_q.fmt->fourcc == V4L2_PIX_FMT_YUYV) |
| 985 | jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_422); |
| 986 | else |
| 987 | jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_420); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 988 | jpeg_jpgadr(jpeg->regs, src_addr); |
| 989 | jpeg_imgadr(jpeg->regs, dst_addr); |
| 990 | } |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 991 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 992 | jpeg_start(jpeg->regs); |
| 993 | } |
| 994 | |
| 995 | static int s5p_jpeg_job_ready(void *priv) |
| 996 | { |
| 997 | struct s5p_jpeg_ctx *ctx = priv; |
| 998 | |
| 999 | if (ctx->mode == S5P_JPEG_DECODE) |
| 1000 | return ctx->hdr_parsed; |
| 1001 | return 1; |
| 1002 | } |
| 1003 | |
| 1004 | static void s5p_jpeg_job_abort(void *priv) |
| 1005 | { |
| 1006 | } |
| 1007 | |
| 1008 | static struct v4l2_m2m_ops s5p_jpeg_m2m_ops = { |
| 1009 | .device_run = s5p_jpeg_device_run, |
| 1010 | .job_ready = s5p_jpeg_job_ready, |
| 1011 | .job_abort = s5p_jpeg_job_abort, |
| 1012 | }; |
| 1013 | |
| 1014 | /* |
| 1015 | * ============================================================================ |
| 1016 | * Queue operations |
| 1017 | * ============================================================================ |
| 1018 | */ |
| 1019 | |
Marek Szyprowski | 719c174 | 2012-01-13 05:12:38 -0300 | [diff] [blame] | 1020 | static int s5p_jpeg_queue_setup(struct vb2_queue *vq, |
| 1021 | const struct v4l2_format *fmt, |
| 1022 | unsigned int *nbuffers, unsigned int *nplanes, |
| 1023 | unsigned int sizes[], void *alloc_ctxs[]) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1024 | { |
| 1025 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); |
| 1026 | struct s5p_jpeg_q_data *q_data = NULL; |
| 1027 | unsigned int size, count = *nbuffers; |
| 1028 | |
| 1029 | q_data = get_q_data(ctx, vq->type); |
| 1030 | BUG_ON(q_data == NULL); |
| 1031 | |
| 1032 | size = q_data->size; |
| 1033 | |
| 1034 | /* |
| 1035 | * header is parsed during decoding and parsed information stored |
| 1036 | * in the context so we do not allow another buffer to overwrite it |
| 1037 | */ |
| 1038 | if (ctx->mode == S5P_JPEG_DECODE) |
| 1039 | count = 1; |
| 1040 | |
| 1041 | *nbuffers = count; |
| 1042 | *nplanes = 1; |
| 1043 | sizes[0] = size; |
| 1044 | alloc_ctxs[0] = ctx->jpeg->alloc_ctx; |
| 1045 | |
| 1046 | return 0; |
| 1047 | } |
| 1048 | |
| 1049 | static int s5p_jpeg_buf_prepare(struct vb2_buffer *vb) |
| 1050 | { |
| 1051 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| 1052 | struct s5p_jpeg_q_data *q_data = NULL; |
| 1053 | |
| 1054 | q_data = get_q_data(ctx, vb->vb2_queue->type); |
| 1055 | BUG_ON(q_data == NULL); |
| 1056 | |
| 1057 | if (vb2_plane_size(vb, 0) < q_data->size) { |
| 1058 | pr_err("%s data will not fit into plane (%lu < %lu)\n", |
| 1059 | __func__, vb2_plane_size(vb, 0), |
| 1060 | (long)q_data->size); |
| 1061 | return -EINVAL; |
| 1062 | } |
| 1063 | |
| 1064 | vb2_set_plane_payload(vb, 0, q_data->size); |
| 1065 | |
| 1066 | return 0; |
| 1067 | } |
| 1068 | |
| 1069 | static void s5p_jpeg_buf_queue(struct vb2_buffer *vb) |
| 1070 | { |
| 1071 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| 1072 | |
| 1073 | if (ctx->mode == S5P_JPEG_DECODE && |
| 1074 | vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { |
| 1075 | struct s5p_jpeg_q_data tmp, *q_data; |
| 1076 | ctx->hdr_parsed = s5p_jpeg_parse_hdr(&tmp, |
| 1077 | (unsigned long)vb2_plane_vaddr(vb, 0), |
| 1078 | min((unsigned long)ctx->out_q.size, |
| 1079 | vb2_get_plane_payload(vb, 0))); |
| 1080 | if (!ctx->hdr_parsed) { |
| 1081 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); |
| 1082 | return; |
| 1083 | } |
| 1084 | |
| 1085 | q_data = &ctx->out_q; |
| 1086 | q_data->w = tmp.w; |
| 1087 | q_data->h = tmp.h; |
| 1088 | |
| 1089 | q_data = &ctx->cap_q; |
| 1090 | q_data->w = tmp.w; |
| 1091 | q_data->h = tmp.h; |
| 1092 | |
| 1093 | jpeg_bound_align_image(&q_data->w, S5P_JPEG_MIN_WIDTH, |
| 1094 | S5P_JPEG_MAX_WIDTH, q_data->fmt->h_align, |
| 1095 | &q_data->h, S5P_JPEG_MIN_HEIGHT, |
| 1096 | S5P_JPEG_MAX_HEIGHT, q_data->fmt->v_align |
| 1097 | ); |
| 1098 | q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; |
| 1099 | } |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1100 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 1101 | v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1102 | } |
| 1103 | |
| 1104 | static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) |
| 1105 | { |
| 1106 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| 1107 | int ret; |
| 1108 | |
| 1109 | ret = pm_runtime_get_sync(ctx->jpeg->dev); |
| 1110 | |
| 1111 | return ret > 0 ? 0 : ret; |
| 1112 | } |
| 1113 | |
| 1114 | static int s5p_jpeg_stop_streaming(struct vb2_queue *q) |
| 1115 | { |
| 1116 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| 1117 | |
| 1118 | pm_runtime_put(ctx->jpeg->dev); |
| 1119 | |
| 1120 | return 0; |
| 1121 | } |
| 1122 | |
| 1123 | static struct vb2_ops s5p_jpeg_qops = { |
| 1124 | .queue_setup = s5p_jpeg_queue_setup, |
| 1125 | .buf_prepare = s5p_jpeg_buf_prepare, |
| 1126 | .buf_queue = s5p_jpeg_buf_queue, |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 1127 | .wait_prepare = vb2_ops_wait_prepare, |
| 1128 | .wait_finish = vb2_ops_wait_finish, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1129 | .start_streaming = s5p_jpeg_start_streaming, |
| 1130 | .stop_streaming = s5p_jpeg_stop_streaming, |
| 1131 | }; |
| 1132 | |
| 1133 | static int queue_init(void *priv, struct vb2_queue *src_vq, |
| 1134 | struct vb2_queue *dst_vq) |
| 1135 | { |
| 1136 | struct s5p_jpeg_ctx *ctx = priv; |
| 1137 | int ret; |
| 1138 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1139 | src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| 1140 | src_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| 1141 | src_vq->drv_priv = ctx; |
| 1142 | src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| 1143 | src_vq->ops = &s5p_jpeg_qops; |
| 1144 | src_vq->mem_ops = &vb2_dma_contig_memops; |
Kamil Debski | aca326a | 2013-04-24 10:08:02 -0300 | [diff] [blame] | 1145 | src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 1146 | src_vq->lock = &ctx->jpeg->lock; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1147 | |
| 1148 | ret = vb2_queue_init(src_vq); |
| 1149 | if (ret) |
| 1150 | return ret; |
| 1151 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1152 | dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1153 | dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| 1154 | dst_vq->drv_priv = ctx; |
| 1155 | dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| 1156 | dst_vq->ops = &s5p_jpeg_qops; |
| 1157 | dst_vq->mem_ops = &vb2_dma_contig_memops; |
Kamil Debski | aca326a | 2013-04-24 10:08:02 -0300 | [diff] [blame] | 1158 | dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 1159 | dst_vq->lock = &ctx->jpeg->lock; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1160 | |
| 1161 | return vb2_queue_init(dst_vq); |
| 1162 | } |
| 1163 | |
| 1164 | /* |
| 1165 | * ============================================================================ |
| 1166 | * ISR |
| 1167 | * ============================================================================ |
| 1168 | */ |
| 1169 | |
| 1170 | static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id) |
| 1171 | { |
| 1172 | struct s5p_jpeg *jpeg = dev_id; |
| 1173 | struct s5p_jpeg_ctx *curr_ctx; |
| 1174 | struct vb2_buffer *src_buf, *dst_buf; |
| 1175 | unsigned long payload_size = 0; |
| 1176 | enum vb2_buffer_state state = VB2_BUF_STATE_DONE; |
| 1177 | bool enc_jpeg_too_large = false; |
| 1178 | bool timer_elapsed = false; |
| 1179 | bool op_completed = false; |
| 1180 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1181 | spin_lock(&jpeg->slock); |
| 1182 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1183 | curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); |
| 1184 | |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 1185 | src_buf = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx); |
| 1186 | dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1187 | |
| 1188 | if (curr_ctx->mode == S5P_JPEG_ENCODE) |
| 1189 | enc_jpeg_too_large = jpeg_enc_stream_stat(jpeg->regs); |
| 1190 | timer_elapsed = jpeg_timer_stat(jpeg->regs); |
| 1191 | op_completed = jpeg_result_stat_ok(jpeg->regs); |
| 1192 | if (curr_ctx->mode == S5P_JPEG_DECODE) |
| 1193 | op_completed = op_completed && jpeg_stream_stat_ok(jpeg->regs); |
| 1194 | |
| 1195 | if (enc_jpeg_too_large) { |
| 1196 | state = VB2_BUF_STATE_ERROR; |
| 1197 | jpeg_clear_enc_stream_stat(jpeg->regs); |
| 1198 | } else if (timer_elapsed) { |
| 1199 | state = VB2_BUF_STATE_ERROR; |
| 1200 | jpeg_clear_timer_stat(jpeg->regs); |
| 1201 | } else if (!op_completed) { |
| 1202 | state = VB2_BUF_STATE_ERROR; |
| 1203 | } else { |
| 1204 | payload_size = jpeg_compressed_size(jpeg->regs); |
| 1205 | } |
| 1206 | |
Kamil Debski | aca326a | 2013-04-24 10:08:02 -0300 | [diff] [blame] | 1207 | dst_buf->v4l2_buf.timecode = src_buf->v4l2_buf.timecode; |
| 1208 | dst_buf->v4l2_buf.timestamp = src_buf->v4l2_buf.timestamp; |
| 1209 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1210 | v4l2_m2m_buf_done(src_buf, state); |
| 1211 | if (curr_ctx->mode == S5P_JPEG_ENCODE) |
| 1212 | vb2_set_plane_payload(dst_buf, 0, payload_size); |
| 1213 | v4l2_m2m_buf_done(dst_buf, state); |
Sylwester Nawrocki | 718cf4a | 2013-08-25 17:16:56 -0300 | [diff] [blame] | 1214 | v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->fh.m2m_ctx); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1215 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1216 | curr_ctx->subsampling = jpeg_get_subsampling_mode(jpeg->regs); |
| 1217 | spin_unlock(&jpeg->slock); |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 1218 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1219 | jpeg_clear_int(jpeg->regs); |
| 1220 | |
| 1221 | return IRQ_HANDLED; |
| 1222 | } |
| 1223 | |
| 1224 | /* |
| 1225 | * ============================================================================ |
| 1226 | * Driver basic infrastructure |
| 1227 | * ============================================================================ |
| 1228 | */ |
| 1229 | |
| 1230 | static int s5p_jpeg_probe(struct platform_device *pdev) |
| 1231 | { |
| 1232 | struct s5p_jpeg *jpeg; |
| 1233 | struct resource *res; |
| 1234 | int ret; |
| 1235 | |
| 1236 | /* JPEG IP abstraction struct */ |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1237 | jpeg = devm_kzalloc(&pdev->dev, sizeof(struct s5p_jpeg), GFP_KERNEL); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1238 | if (!jpeg) |
| 1239 | return -ENOMEM; |
| 1240 | |
| 1241 | mutex_init(&jpeg->lock); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1242 | spin_lock_init(&jpeg->slock); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1243 | jpeg->dev = &pdev->dev; |
| 1244 | |
| 1245 | /* memory-mapped registers */ |
| 1246 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1247 | |
Thierry Reding | f23999e | 2013-01-21 06:09:07 -0300 | [diff] [blame] | 1248 | jpeg->regs = devm_ioremap_resource(&pdev->dev, res); |
| 1249 | if (IS_ERR(jpeg->regs)) |
| 1250 | return PTR_ERR(jpeg->regs); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1251 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1252 | /* interrupt service routine registration */ |
| 1253 | jpeg->irq = ret = platform_get_irq(pdev, 0); |
| 1254 | if (ret < 0) { |
| 1255 | dev_err(&pdev->dev, "cannot find IRQ\n"); |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1256 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1257 | } |
| 1258 | |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1259 | ret = devm_request_irq(&pdev->dev, jpeg->irq, s5p_jpeg_irq, 0, |
| 1260 | dev_name(&pdev->dev), jpeg); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1261 | if (ret) { |
| 1262 | dev_err(&pdev->dev, "cannot claim IRQ %d\n", jpeg->irq); |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1263 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1264 | } |
| 1265 | |
| 1266 | /* clocks */ |
| 1267 | jpeg->clk = clk_get(&pdev->dev, "jpeg"); |
| 1268 | if (IS_ERR(jpeg->clk)) { |
| 1269 | dev_err(&pdev->dev, "cannot get clock\n"); |
| 1270 | ret = PTR_ERR(jpeg->clk); |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1271 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1272 | } |
| 1273 | dev_dbg(&pdev->dev, "clock source %p\n", jpeg->clk); |
Thomas Abraham | 2c4c03f | 2012-10-02 20:55:02 -0300 | [diff] [blame] | 1274 | clk_prepare_enable(jpeg->clk); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1275 | |
| 1276 | /* v4l2 device */ |
| 1277 | ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev); |
| 1278 | if (ret) { |
| 1279 | dev_err(&pdev->dev, "Failed to register v4l2 device\n"); |
| 1280 | goto clk_get_rollback; |
| 1281 | } |
| 1282 | |
| 1283 | /* mem2mem device */ |
| 1284 | jpeg->m2m_dev = v4l2_m2m_init(&s5p_jpeg_m2m_ops); |
| 1285 | if (IS_ERR(jpeg->m2m_dev)) { |
| 1286 | v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n"); |
| 1287 | ret = PTR_ERR(jpeg->m2m_dev); |
| 1288 | goto device_register_rollback; |
| 1289 | } |
| 1290 | |
| 1291 | jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); |
| 1292 | if (IS_ERR(jpeg->alloc_ctx)) { |
| 1293 | v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n"); |
| 1294 | ret = PTR_ERR(jpeg->alloc_ctx); |
| 1295 | goto m2m_init_rollback; |
| 1296 | } |
| 1297 | |
| 1298 | /* JPEG encoder /dev/videoX node */ |
| 1299 | jpeg->vfd_encoder = video_device_alloc(); |
| 1300 | if (!jpeg->vfd_encoder) { |
| 1301 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); |
| 1302 | ret = -ENOMEM; |
| 1303 | goto vb2_allocator_rollback; |
| 1304 | } |
Seung-Woo Kim | baaf046 | 2013-10-10 04:45:56 -0300 | [diff] [blame] | 1305 | snprintf(jpeg->vfd_encoder->name, sizeof(jpeg->vfd_encoder->name), |
| 1306 | "%s-enc", S5P_JPEG_M2M_NAME); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1307 | jpeg->vfd_encoder->fops = &s5p_jpeg_fops; |
| 1308 | jpeg->vfd_encoder->ioctl_ops = &s5p_jpeg_ioctl_ops; |
| 1309 | jpeg->vfd_encoder->minor = -1; |
| 1310 | jpeg->vfd_encoder->release = video_device_release; |
| 1311 | jpeg->vfd_encoder->lock = &jpeg->lock; |
| 1312 | jpeg->vfd_encoder->v4l2_dev = &jpeg->v4l2_dev; |
Hans Verkuil | 954f340 | 2012-09-05 06:05:50 -0300 | [diff] [blame] | 1313 | jpeg->vfd_encoder->vfl_dir = VFL_DIR_M2M; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1314 | |
| 1315 | ret = video_register_device(jpeg->vfd_encoder, VFL_TYPE_GRABBER, -1); |
| 1316 | if (ret) { |
| 1317 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); |
| 1318 | goto enc_vdev_alloc_rollback; |
| 1319 | } |
| 1320 | |
| 1321 | video_set_drvdata(jpeg->vfd_encoder, jpeg); |
| 1322 | v4l2_info(&jpeg->v4l2_dev, |
| 1323 | "encoder device registered as /dev/video%d\n", |
| 1324 | jpeg->vfd_encoder->num); |
| 1325 | |
| 1326 | /* JPEG decoder /dev/videoX node */ |
| 1327 | jpeg->vfd_decoder = video_device_alloc(); |
| 1328 | if (!jpeg->vfd_decoder) { |
| 1329 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); |
| 1330 | ret = -ENOMEM; |
| 1331 | goto enc_vdev_register_rollback; |
| 1332 | } |
Seung-Woo Kim | baaf046 | 2013-10-10 04:45:56 -0300 | [diff] [blame] | 1333 | snprintf(jpeg->vfd_decoder->name, sizeof(jpeg->vfd_decoder->name), |
| 1334 | "%s-dec", S5P_JPEG_M2M_NAME); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1335 | jpeg->vfd_decoder->fops = &s5p_jpeg_fops; |
| 1336 | jpeg->vfd_decoder->ioctl_ops = &s5p_jpeg_ioctl_ops; |
| 1337 | jpeg->vfd_decoder->minor = -1; |
| 1338 | jpeg->vfd_decoder->release = video_device_release; |
| 1339 | jpeg->vfd_decoder->lock = &jpeg->lock; |
| 1340 | jpeg->vfd_decoder->v4l2_dev = &jpeg->v4l2_dev; |
Jacek Anaszewski | 7f7d8fe | 2013-09-11 06:17:45 -0300 | [diff] [blame] | 1341 | jpeg->vfd_decoder->vfl_dir = VFL_DIR_M2M; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1342 | |
| 1343 | ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1); |
| 1344 | if (ret) { |
| 1345 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); |
| 1346 | goto dec_vdev_alloc_rollback; |
| 1347 | } |
| 1348 | |
| 1349 | video_set_drvdata(jpeg->vfd_decoder, jpeg); |
| 1350 | v4l2_info(&jpeg->v4l2_dev, |
| 1351 | "decoder device registered as /dev/video%d\n", |
| 1352 | jpeg->vfd_decoder->num); |
| 1353 | |
| 1354 | /* final statements & power management */ |
| 1355 | platform_set_drvdata(pdev, jpeg); |
| 1356 | |
| 1357 | pm_runtime_enable(&pdev->dev); |
| 1358 | |
| 1359 | v4l2_info(&jpeg->v4l2_dev, "Samsung S5P JPEG codec\n"); |
| 1360 | |
| 1361 | return 0; |
| 1362 | |
| 1363 | dec_vdev_alloc_rollback: |
| 1364 | video_device_release(jpeg->vfd_decoder); |
| 1365 | |
| 1366 | enc_vdev_register_rollback: |
| 1367 | video_unregister_device(jpeg->vfd_encoder); |
| 1368 | |
| 1369 | enc_vdev_alloc_rollback: |
| 1370 | video_device_release(jpeg->vfd_encoder); |
| 1371 | |
| 1372 | vb2_allocator_rollback: |
| 1373 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); |
| 1374 | |
| 1375 | m2m_init_rollback: |
| 1376 | v4l2_m2m_release(jpeg->m2m_dev); |
| 1377 | |
| 1378 | device_register_rollback: |
| 1379 | v4l2_device_unregister(&jpeg->v4l2_dev); |
| 1380 | |
| 1381 | clk_get_rollback: |
Thomas Abraham | 2c4c03f | 2012-10-02 20:55:02 -0300 | [diff] [blame] | 1382 | clk_disable_unprepare(jpeg->clk); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1383 | clk_put(jpeg->clk); |
| 1384 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1385 | return ret; |
| 1386 | } |
| 1387 | |
| 1388 | static int s5p_jpeg_remove(struct platform_device *pdev) |
| 1389 | { |
| 1390 | struct s5p_jpeg *jpeg = platform_get_drvdata(pdev); |
| 1391 | |
| 1392 | pm_runtime_disable(jpeg->dev); |
| 1393 | |
| 1394 | video_unregister_device(jpeg->vfd_decoder); |
| 1395 | video_device_release(jpeg->vfd_decoder); |
| 1396 | video_unregister_device(jpeg->vfd_encoder); |
| 1397 | video_device_release(jpeg->vfd_encoder); |
| 1398 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); |
| 1399 | v4l2_m2m_release(jpeg->m2m_dev); |
| 1400 | v4l2_device_unregister(&jpeg->v4l2_dev); |
| 1401 | |
Thomas Abraham | 2c4c03f | 2012-10-02 20:55:02 -0300 | [diff] [blame] | 1402 | clk_disable_unprepare(jpeg->clk); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1403 | clk_put(jpeg->clk); |
| 1404 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1405 | return 0; |
| 1406 | } |
| 1407 | |
| 1408 | static int s5p_jpeg_runtime_suspend(struct device *dev) |
| 1409 | { |
| 1410 | return 0; |
| 1411 | } |
| 1412 | |
| 1413 | static int s5p_jpeg_runtime_resume(struct device *dev) |
| 1414 | { |
| 1415 | struct s5p_jpeg *jpeg = dev_get_drvdata(dev); |
| 1416 | /* |
| 1417 | * JPEG IP allows storing two Huffman tables for each component |
| 1418 | * We fill table 0 for each component |
| 1419 | */ |
| 1420 | jpeg_set_hdctbl(jpeg->regs); |
| 1421 | jpeg_set_hdctblg(jpeg->regs); |
| 1422 | jpeg_set_hactbl(jpeg->regs); |
| 1423 | jpeg_set_hactblg(jpeg->regs); |
| 1424 | return 0; |
| 1425 | } |
| 1426 | |
| 1427 | static const struct dev_pm_ops s5p_jpeg_pm_ops = { |
| 1428 | .runtime_suspend = s5p_jpeg_runtime_suspend, |
| 1429 | .runtime_resume = s5p_jpeg_runtime_resume, |
| 1430 | }; |
| 1431 | |
Sylwester Nawrocki | f7074ab | 2013-08-18 16:14:27 -0300 | [diff] [blame^] | 1432 | #ifdef CONFIG_OF |
| 1433 | static const struct of_device_id s5p_jpeg_of_match[] = { |
| 1434 | { .compatible = "samsung,s5pv210-jpeg" }, |
| 1435 | { .compatible = "samsung,exynos4210-jpeg" }, |
| 1436 | { /* sentinel */ }, |
| 1437 | }; |
| 1438 | MODULE_DEVICE_TABLE(of, s5p_jpeg_of_match); |
| 1439 | #endif |
| 1440 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1441 | static struct platform_driver s5p_jpeg_driver = { |
| 1442 | .probe = s5p_jpeg_probe, |
| 1443 | .remove = s5p_jpeg_remove, |
| 1444 | .driver = { |
Sylwester Nawrocki | f7074ab | 2013-08-18 16:14:27 -0300 | [diff] [blame^] | 1445 | .of_match_table = of_match_ptr(s5p_jpeg_of_match), |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1446 | .owner = THIS_MODULE, |
| 1447 | .name = S5P_JPEG_M2M_NAME, |
| 1448 | .pm = &s5p_jpeg_pm_ops, |
| 1449 | }, |
| 1450 | }; |
| 1451 | |
Sachin Kamat | 87e9429 | 2012-07-03 05:54:33 -0300 | [diff] [blame] | 1452 | module_platform_driver(s5p_jpeg_driver); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1453 | |
| 1454 | MODULE_AUTHOR("Andrzej Pietrasiewicz <andrzej.p@samsung.com>"); |
| 1455 | MODULE_DESCRIPTION("Samsung JPEG codec driver"); |
| 1456 | MODULE_LICENSE("GPL"); |