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> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/pm_runtime.h> |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/spinlock.h> |
| 24 | #include <linux/string.h> |
| 25 | #include <media/v4l2-mem2mem.h> |
| 26 | #include <media/v4l2-ioctl.h> |
| 27 | #include <media/videobuf2-core.h> |
| 28 | #include <media/videobuf2-dma-contig.h> |
| 29 | |
| 30 | #include "jpeg-core.h" |
| 31 | #include "jpeg-hw.h" |
| 32 | |
| 33 | static struct s5p_jpeg_fmt formats_enc[] = { |
| 34 | { |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 35 | .name = "JPEG JFIF", |
| 36 | .fourcc = V4L2_PIX_FMT_JPEG, |
| 37 | .colplanes = 1, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 38 | .types = MEM2MEM_CAPTURE, |
| 39 | }, |
| 40 | { |
| 41 | .name = "YUV 4:2:2 packed, YCbYCr", |
| 42 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 43 | .depth = 16, |
| 44 | .colplanes = 1, |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 45 | .types = MEM2MEM_OUTPUT, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 46 | }, |
| 47 | { |
| 48 | .name = "RGB565", |
| 49 | .fourcc = V4L2_PIX_FMT_RGB565, |
| 50 | .depth = 16, |
| 51 | .colplanes = 1, |
| 52 | .types = MEM2MEM_OUTPUT, |
| 53 | }, |
| 54 | }; |
| 55 | #define NUM_FORMATS_ENC ARRAY_SIZE(formats_enc) |
| 56 | |
| 57 | static struct s5p_jpeg_fmt formats_dec[] = { |
| 58 | { |
| 59 | .name = "YUV 4:2:0 planar, YCbCr", |
| 60 | .fourcc = V4L2_PIX_FMT_YUV420, |
| 61 | .depth = 12, |
| 62 | .colplanes = 3, |
| 63 | .h_align = 4, |
| 64 | .v_align = 4, |
| 65 | .types = MEM2MEM_CAPTURE, |
| 66 | }, |
| 67 | { |
| 68 | .name = "YUV 4:2:2 packed, YCbYCr", |
| 69 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 70 | .depth = 16, |
| 71 | .colplanes = 1, |
| 72 | .h_align = 4, |
| 73 | .v_align = 3, |
| 74 | .types = MEM2MEM_CAPTURE, |
| 75 | }, |
| 76 | { |
| 77 | .name = "JPEG JFIF", |
| 78 | .fourcc = V4L2_PIX_FMT_JPEG, |
| 79 | .colplanes = 1, |
| 80 | .types = MEM2MEM_OUTPUT, |
| 81 | }, |
| 82 | }; |
| 83 | #define NUM_FORMATS_DEC ARRAY_SIZE(formats_dec) |
| 84 | |
| 85 | static const unsigned char qtbl_luminance[4][64] = { |
| 86 | {/* level 1 - high quality */ |
| 87 | 8, 6, 6, 8, 12, 14, 16, 17, |
| 88 | 6, 6, 6, 8, 10, 13, 12, 15, |
| 89 | 6, 6, 7, 8, 13, 14, 18, 24, |
| 90 | 8, 8, 8, 14, 13, 19, 24, 35, |
| 91 | 12, 10, 13, 13, 20, 26, 34, 39, |
| 92 | 14, 13, 14, 19, 26, 34, 39, 39, |
| 93 | 16, 12, 18, 24, 34, 39, 39, 39, |
| 94 | 17, 15, 24, 35, 39, 39, 39, 39 |
| 95 | }, |
| 96 | {/* level 2 */ |
| 97 | 12, 8, 8, 12, 17, 21, 24, 23, |
| 98 | 8, 9, 9, 11, 15, 19, 18, 23, |
| 99 | 8, 9, 10, 12, 19, 20, 27, 36, |
| 100 | 12, 11, 12, 21, 20, 28, 36, 53, |
| 101 | 17, 15, 19, 20, 30, 39, 51, 59, |
| 102 | 21, 19, 20, 28, 39, 51, 59, 59, |
| 103 | 24, 18, 27, 36, 51, 59, 59, 59, |
| 104 | 23, 23, 36, 53, 59, 59, 59, 59 |
| 105 | }, |
| 106 | {/* level 3 */ |
| 107 | 16, 11, 11, 16, 23, 27, 31, 30, |
| 108 | 11, 12, 12, 15, 20, 23, 23, 30, |
| 109 | 11, 12, 13, 16, 23, 26, 35, 47, |
| 110 | 16, 15, 16, 23, 26, 37, 47, 64, |
| 111 | 23, 20, 23, 26, 39, 51, 64, 64, |
| 112 | 27, 23, 26, 37, 51, 64, 64, 64, |
| 113 | 31, 23, 35, 47, 64, 64, 64, 64, |
| 114 | 30, 30, 47, 64, 64, 64, 64, 64 |
| 115 | }, |
| 116 | {/*level 4 - low quality */ |
| 117 | 20, 16, 25, 39, 50, 46, 62, 68, |
| 118 | 16, 18, 23, 38, 38, 53, 65, 68, |
| 119 | 25, 23, 31, 38, 53, 65, 68, 68, |
| 120 | 39, 38, 38, 53, 65, 68, 68, 68, |
| 121 | 50, 38, 53, 65, 68, 68, 68, 68, |
| 122 | 46, 53, 65, 68, 68, 68, 68, 68, |
| 123 | 62, 65, 68, 68, 68, 68, 68, 68, |
| 124 | 68, 68, 68, 68, 68, 68, 68, 68 |
| 125 | } |
| 126 | }; |
| 127 | |
| 128 | static const unsigned char qtbl_chrominance[4][64] = { |
| 129 | {/* level 1 - high quality */ |
| 130 | 9, 8, 9, 11, 14, 17, 19, 24, |
| 131 | 8, 10, 9, 11, 14, 13, 17, 22, |
| 132 | 9, 9, 13, 14, 13, 15, 23, 26, |
| 133 | 11, 11, 14, 14, 15, 20, 26, 33, |
| 134 | 14, 14, 13, 15, 20, 24, 33, 39, |
| 135 | 17, 13, 15, 20, 24, 32, 39, 39, |
| 136 | 19, 17, 23, 26, 33, 39, 39, 39, |
| 137 | 24, 22, 26, 33, 39, 39, 39, 39 |
| 138 | }, |
| 139 | {/* level 2 */ |
| 140 | 13, 11, 13, 16, 20, 20, 29, 37, |
| 141 | 11, 14, 14, 14, 16, 20, 26, 32, |
| 142 | 13, 14, 15, 17, 20, 23, 35, 40, |
| 143 | 16, 14, 17, 21, 23, 30, 40, 50, |
| 144 | 20, 16, 20, 23, 30, 37, 50, 59, |
| 145 | 20, 20, 23, 30, 37, 48, 59, 59, |
| 146 | 29, 26, 35, 40, 50, 59, 59, 59, |
| 147 | 37, 32, 40, 50, 59, 59, 59, 59 |
| 148 | }, |
| 149 | {/* level 3 */ |
| 150 | 17, 15, 17, 21, 20, 26, 38, 48, |
| 151 | 15, 19, 18, 17, 20, 26, 35, 43, |
| 152 | 17, 18, 20, 22, 26, 30, 46, 53, |
| 153 | 21, 17, 22, 28, 30, 39, 53, 64, |
| 154 | 20, 20, 26, 30, 39, 48, 64, 64, |
| 155 | 26, 26, 30, 39, 48, 63, 64, 64, |
| 156 | 38, 35, 46, 53, 64, 64, 64, 64, |
| 157 | 48, 43, 53, 64, 64, 64, 64, 64 |
| 158 | }, |
| 159 | {/*level 4 - low quality */ |
| 160 | 21, 25, 32, 38, 54, 68, 68, 68, |
| 161 | 25, 28, 24, 38, 54, 68, 68, 68, |
| 162 | 32, 24, 32, 43, 66, 68, 68, 68, |
| 163 | 38, 38, 43, 53, 68, 68, 68, 68, |
| 164 | 54, 54, 66, 68, 68, 68, 68, 68, |
| 165 | 68, 68, 68, 68, 68, 68, 68, 68, |
| 166 | 68, 68, 68, 68, 68, 68, 68, 68, |
| 167 | 68, 68, 68, 68, 68, 68, 68, 68 |
| 168 | } |
| 169 | }; |
| 170 | |
| 171 | static const unsigned char hdctbl0[16] = { |
| 172 | 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 |
| 173 | }; |
| 174 | |
| 175 | static const unsigned char hdctblg0[12] = { |
| 176 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb |
| 177 | }; |
| 178 | static const unsigned char hactbl0[16] = { |
| 179 | 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d |
| 180 | }; |
| 181 | static const unsigned char hactblg0[162] = { |
| 182 | 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, |
| 183 | 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, |
| 184 | 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, |
| 185 | 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, |
| 186 | 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, |
| 187 | 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, |
| 188 | 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, |
| 189 | 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, |
| 190 | 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, |
| 191 | 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, |
| 192 | 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, |
| 193 | 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, |
| 194 | 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, |
| 195 | 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, |
| 196 | 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, |
| 197 | 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, |
| 198 | 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, |
| 199 | 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, |
| 200 | 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, |
| 201 | 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, |
| 202 | 0xf9, 0xfa |
| 203 | }; |
| 204 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 205 | static inline struct s5p_jpeg_ctx *ctrl_to_ctx(struct v4l2_ctrl *c) |
| 206 | { |
| 207 | return container_of(c->handler, struct s5p_jpeg_ctx, ctrl_handler); |
| 208 | } |
| 209 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 210 | static inline struct s5p_jpeg_ctx *fh_to_ctx(struct v4l2_fh *fh) |
| 211 | { |
| 212 | return container_of(fh, struct s5p_jpeg_ctx, fh); |
| 213 | } |
| 214 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 215 | static inline void jpeg_set_qtbl(void __iomem *regs, const unsigned char *qtbl, |
| 216 | unsigned long tab, int len) |
| 217 | { |
| 218 | int i; |
| 219 | |
| 220 | for (i = 0; i < len; i++) |
| 221 | writel((unsigned int)qtbl[i], regs + tab + (i * 0x04)); |
| 222 | } |
| 223 | |
| 224 | static inline void jpeg_set_qtbl_lum(void __iomem *regs, int quality) |
| 225 | { |
| 226 | /* this driver fills quantisation table 0 with data for luma */ |
| 227 | jpeg_set_qtbl(regs, qtbl_luminance[quality], S5P_JPG_QTBL_CONTENT(0), |
| 228 | ARRAY_SIZE(qtbl_luminance[quality])); |
| 229 | } |
| 230 | |
| 231 | static inline void jpeg_set_qtbl_chr(void __iomem *regs, int quality) |
| 232 | { |
| 233 | /* this driver fills quantisation table 1 with data for chroma */ |
| 234 | jpeg_set_qtbl(regs, qtbl_chrominance[quality], S5P_JPG_QTBL_CONTENT(1), |
| 235 | ARRAY_SIZE(qtbl_chrominance[quality])); |
| 236 | } |
| 237 | |
| 238 | static inline void jpeg_set_htbl(void __iomem *regs, const unsigned char *htbl, |
| 239 | unsigned long tab, int len) |
| 240 | { |
| 241 | int i; |
| 242 | |
| 243 | for (i = 0; i < len; i++) |
| 244 | writel((unsigned int)htbl[i], regs + tab + (i * 0x04)); |
| 245 | } |
| 246 | |
| 247 | static inline void jpeg_set_hdctbl(void __iomem *regs) |
| 248 | { |
| 249 | /* this driver fills table 0 for this component */ |
| 250 | jpeg_set_htbl(regs, hdctbl0, S5P_JPG_HDCTBL(0), ARRAY_SIZE(hdctbl0)); |
| 251 | } |
| 252 | |
| 253 | static inline void jpeg_set_hdctblg(void __iomem *regs) |
| 254 | { |
| 255 | /* this driver fills table 0 for this component */ |
| 256 | jpeg_set_htbl(regs, hdctblg0, S5P_JPG_HDCTBLG(0), ARRAY_SIZE(hdctblg0)); |
| 257 | } |
| 258 | |
| 259 | static inline void jpeg_set_hactbl(void __iomem *regs) |
| 260 | { |
| 261 | /* this driver fills table 0 for this component */ |
| 262 | jpeg_set_htbl(regs, hactbl0, S5P_JPG_HACTBL(0), ARRAY_SIZE(hactbl0)); |
| 263 | } |
| 264 | |
| 265 | static inline void jpeg_set_hactblg(void __iomem *regs) |
| 266 | { |
| 267 | /* this driver fills table 0 for this component */ |
| 268 | jpeg_set_htbl(regs, hactblg0, S5P_JPG_HACTBLG(0), ARRAY_SIZE(hactblg0)); |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | * ============================================================================ |
| 273 | * Device file operations |
| 274 | * ============================================================================ |
| 275 | */ |
| 276 | |
| 277 | static int queue_init(void *priv, struct vb2_queue *src_vq, |
| 278 | struct vb2_queue *dst_vq); |
| 279 | static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode, |
| 280 | __u32 pixelformat); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 281 | static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 282 | |
| 283 | static int s5p_jpeg_open(struct file *file) |
| 284 | { |
| 285 | struct s5p_jpeg *jpeg = video_drvdata(file); |
| 286 | struct video_device *vfd = video_devdata(file); |
| 287 | struct s5p_jpeg_ctx *ctx; |
| 288 | struct s5p_jpeg_fmt *out_fmt; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 289 | int ret = 0; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 290 | |
Sachin Kamat | b5146c9 | 2012-08-16 08:52:58 -0300 | [diff] [blame] | 291 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 292 | if (!ctx) |
| 293 | return -ENOMEM; |
| 294 | |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 295 | if (mutex_lock_interruptible(&jpeg->lock)) { |
| 296 | ret = -ERESTARTSYS; |
| 297 | goto free; |
| 298 | } |
| 299 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 300 | v4l2_fh_init(&ctx->fh, vfd); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 301 | /* Use separate control handler per file handle */ |
| 302 | ctx->fh.ctrl_handler = &ctx->ctrl_handler; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 303 | file->private_data = &ctx->fh; |
| 304 | v4l2_fh_add(&ctx->fh); |
| 305 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 306 | ctx->jpeg = jpeg; |
| 307 | if (vfd == jpeg->vfd_encoder) { |
| 308 | ctx->mode = S5P_JPEG_ENCODE; |
| 309 | out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_RGB565); |
| 310 | } else { |
| 311 | ctx->mode = S5P_JPEG_DECODE; |
| 312 | out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_JPEG); |
| 313 | } |
| 314 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 315 | ret = s5p_jpeg_controls_create(ctx); |
| 316 | if (ret < 0) |
| 317 | goto error; |
| 318 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 319 | ctx->m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init); |
| 320 | if (IS_ERR(ctx->m2m_ctx)) { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 321 | ret = PTR_ERR(ctx->m2m_ctx); |
| 322 | goto error; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | ctx->out_q.fmt = out_fmt; |
| 326 | 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] | 327 | mutex_unlock(&jpeg->lock); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 328 | return 0; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 329 | |
| 330 | error: |
| 331 | v4l2_fh_del(&ctx->fh); |
| 332 | v4l2_fh_exit(&ctx->fh); |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 333 | mutex_unlock(&jpeg->lock); |
| 334 | free: |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 335 | kfree(ctx); |
| 336 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | static int s5p_jpeg_release(struct file *file) |
| 340 | { |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 341 | struct s5p_jpeg *jpeg = video_drvdata(file); |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 342 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 343 | |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 344 | mutex_lock(&jpeg->lock); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 345 | v4l2_m2m_ctx_release(ctx->m2m_ctx); |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 346 | mutex_unlock(&jpeg->lock); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 347 | v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 348 | v4l2_fh_del(&ctx->fh); |
| 349 | v4l2_fh_exit(&ctx->fh); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 350 | kfree(ctx); |
| 351 | |
| 352 | return 0; |
| 353 | } |
| 354 | |
| 355 | static unsigned int s5p_jpeg_poll(struct file *file, |
| 356 | struct poll_table_struct *wait) |
| 357 | { |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 358 | struct s5p_jpeg *jpeg = video_drvdata(file); |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 359 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 360 | unsigned int res; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 361 | |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 362 | mutex_lock(&jpeg->lock); |
| 363 | res = v4l2_m2m_poll(file, ctx->m2m_ctx, wait); |
| 364 | mutex_unlock(&jpeg->lock); |
| 365 | return res; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | static int s5p_jpeg_mmap(struct file *file, struct vm_area_struct *vma) |
| 369 | { |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 370 | struct s5p_jpeg *jpeg = video_drvdata(file); |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 371 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 372 | int ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 373 | |
Hans Verkuil | b0d5cd6 | 2012-06-24 06:54:18 -0300 | [diff] [blame] | 374 | if (mutex_lock_interruptible(&jpeg->lock)) |
| 375 | return -ERESTARTSYS; |
| 376 | ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); |
| 377 | mutex_unlock(&jpeg->lock); |
| 378 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 379 | } |
| 380 | |
| 381 | static const struct v4l2_file_operations s5p_jpeg_fops = { |
| 382 | .owner = THIS_MODULE, |
| 383 | .open = s5p_jpeg_open, |
| 384 | .release = s5p_jpeg_release, |
| 385 | .poll = s5p_jpeg_poll, |
| 386 | .unlocked_ioctl = video_ioctl2, |
| 387 | .mmap = s5p_jpeg_mmap, |
| 388 | }; |
| 389 | |
| 390 | /* |
| 391 | * ============================================================================ |
| 392 | * video ioctl operations |
| 393 | * ============================================================================ |
| 394 | */ |
| 395 | |
| 396 | static int get_byte(struct s5p_jpeg_buffer *buf) |
| 397 | { |
| 398 | if (buf->curr >= buf->size) |
| 399 | return -1; |
| 400 | |
| 401 | return ((unsigned char *)buf->data)[buf->curr++]; |
| 402 | } |
| 403 | |
| 404 | static int get_word_be(struct s5p_jpeg_buffer *buf, unsigned int *word) |
| 405 | { |
| 406 | unsigned int temp; |
| 407 | int byte; |
| 408 | |
| 409 | byte = get_byte(buf); |
| 410 | if (byte == -1) |
| 411 | return -1; |
| 412 | temp = byte << 8; |
| 413 | byte = get_byte(buf); |
| 414 | if (byte == -1) |
| 415 | return -1; |
| 416 | *word = (unsigned int)byte | temp; |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | static void skip(struct s5p_jpeg_buffer *buf, long len) |
| 421 | { |
| 422 | if (len <= 0) |
| 423 | return; |
| 424 | |
| 425 | while (len--) |
| 426 | get_byte(buf); |
| 427 | } |
| 428 | |
| 429 | static bool s5p_jpeg_parse_hdr(struct s5p_jpeg_q_data *result, |
| 430 | unsigned long buffer, unsigned long size) |
| 431 | { |
| 432 | int c, components, notfound; |
| 433 | unsigned int height, width, word; |
| 434 | long length; |
| 435 | struct s5p_jpeg_buffer jpeg_buffer; |
| 436 | |
| 437 | jpeg_buffer.size = size; |
| 438 | jpeg_buffer.data = buffer; |
| 439 | jpeg_buffer.curr = 0; |
| 440 | |
| 441 | notfound = 1; |
| 442 | while (notfound) { |
| 443 | c = get_byte(&jpeg_buffer); |
| 444 | if (c == -1) |
| 445 | break; |
| 446 | if (c != 0xff) |
| 447 | continue; |
| 448 | do |
| 449 | c = get_byte(&jpeg_buffer); |
| 450 | while (c == 0xff); |
| 451 | if (c == -1) |
| 452 | break; |
| 453 | if (c == 0) |
| 454 | continue; |
| 455 | length = 0; |
| 456 | switch (c) { |
| 457 | /* SOF0: baseline JPEG */ |
| 458 | case SOF0: |
| 459 | if (get_word_be(&jpeg_buffer, &word)) |
| 460 | break; |
| 461 | if (get_byte(&jpeg_buffer) == -1) |
| 462 | break; |
| 463 | if (get_word_be(&jpeg_buffer, &height)) |
| 464 | break; |
| 465 | if (get_word_be(&jpeg_buffer, &width)) |
| 466 | break; |
| 467 | components = get_byte(&jpeg_buffer); |
| 468 | if (components == -1) |
| 469 | break; |
| 470 | notfound = 0; |
| 471 | |
| 472 | skip(&jpeg_buffer, components * 3); |
| 473 | break; |
| 474 | |
| 475 | /* skip payload-less markers */ |
| 476 | case RST ... RST + 7: |
| 477 | case SOI: |
| 478 | case EOI: |
| 479 | case TEM: |
| 480 | break; |
| 481 | |
| 482 | /* skip uninteresting payload markers */ |
| 483 | default: |
| 484 | if (get_word_be(&jpeg_buffer, &word)) |
| 485 | break; |
| 486 | length = (long)word - 2; |
| 487 | skip(&jpeg_buffer, length); |
| 488 | break; |
| 489 | } |
| 490 | } |
| 491 | result->w = width; |
| 492 | result->h = height; |
| 493 | result->size = components; |
| 494 | return !notfound; |
| 495 | } |
| 496 | |
| 497 | static int s5p_jpeg_querycap(struct file *file, void *priv, |
| 498 | struct v4l2_capability *cap) |
| 499 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 500 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 501 | |
| 502 | if (ctx->mode == S5P_JPEG_ENCODE) { |
| 503 | strlcpy(cap->driver, S5P_JPEG_M2M_NAME " encoder", |
| 504 | sizeof(cap->driver)); |
| 505 | strlcpy(cap->card, S5P_JPEG_M2M_NAME " encoder", |
| 506 | sizeof(cap->card)); |
| 507 | } else { |
| 508 | strlcpy(cap->driver, S5P_JPEG_M2M_NAME " decoder", |
| 509 | sizeof(cap->driver)); |
| 510 | strlcpy(cap->card, S5P_JPEG_M2M_NAME " decoder", |
| 511 | sizeof(cap->card)); |
| 512 | } |
| 513 | cap->bus_info[0] = 0; |
Sylwester Nawrocki | f0476a8 | 2012-07-26 09:30:00 -0300 | [diff] [blame] | 514 | /* |
| 515 | * This is only a mem-to-mem video device. The capture and output |
| 516 | * device capability flags are left only for backward compatibility |
| 517 | * and are scheduled for removal. |
| 518 | */ |
| 519 | cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M | |
| 520 | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 521 | return 0; |
| 522 | } |
| 523 | |
| 524 | static int enum_fmt(struct s5p_jpeg_fmt *formats, int n, |
| 525 | struct v4l2_fmtdesc *f, u32 type) |
| 526 | { |
| 527 | int i, num = 0; |
| 528 | |
| 529 | for (i = 0; i < n; ++i) { |
| 530 | if (formats[i].types & type) { |
| 531 | /* index-th format of type type found ? */ |
| 532 | if (num == f->index) |
| 533 | break; |
| 534 | /* Correct type but haven't reached our index yet, |
| 535 | * just increment per-type index */ |
| 536 | ++num; |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | /* Format not found */ |
| 541 | if (i >= n) |
| 542 | return -EINVAL; |
| 543 | |
| 544 | strlcpy(f->description, formats[i].name, sizeof(f->description)); |
| 545 | f->pixelformat = formats[i].fourcc; |
| 546 | |
| 547 | return 0; |
| 548 | } |
| 549 | |
| 550 | static int s5p_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, |
| 551 | struct v4l2_fmtdesc *f) |
| 552 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 553 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 554 | |
| 555 | if (ctx->mode == S5P_JPEG_ENCODE) |
| 556 | return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, |
| 557 | MEM2MEM_CAPTURE); |
| 558 | |
| 559 | return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_CAPTURE); |
| 560 | } |
| 561 | |
| 562 | static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv, |
| 563 | struct v4l2_fmtdesc *f) |
| 564 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 565 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 566 | |
| 567 | if (ctx->mode == S5P_JPEG_ENCODE) |
| 568 | return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, |
| 569 | MEM2MEM_OUTPUT); |
| 570 | |
| 571 | return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_OUTPUT); |
| 572 | } |
| 573 | |
| 574 | static struct s5p_jpeg_q_data *get_q_data(struct s5p_jpeg_ctx *ctx, |
| 575 | enum v4l2_buf_type type) |
| 576 | { |
| 577 | if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT) |
| 578 | return &ctx->out_q; |
| 579 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 580 | return &ctx->cap_q; |
| 581 | |
| 582 | return NULL; |
| 583 | } |
| 584 | |
| 585 | static int s5p_jpeg_g_fmt(struct file *file, void *priv, struct v4l2_format *f) |
| 586 | { |
| 587 | struct vb2_queue *vq; |
| 588 | struct s5p_jpeg_q_data *q_data = NULL; |
| 589 | struct v4l2_pix_format *pix = &f->fmt.pix; |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 590 | struct s5p_jpeg_ctx *ct = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 591 | |
| 592 | vq = v4l2_m2m_get_vq(ct->m2m_ctx, f->type); |
| 593 | if (!vq) |
| 594 | return -EINVAL; |
| 595 | |
| 596 | if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && |
| 597 | ct->mode == S5P_JPEG_DECODE && !ct->hdr_parsed) |
| 598 | return -EINVAL; |
| 599 | q_data = get_q_data(ct, f->type); |
| 600 | BUG_ON(q_data == NULL); |
| 601 | |
| 602 | pix->width = q_data->w; |
| 603 | pix->height = q_data->h; |
| 604 | pix->field = V4L2_FIELD_NONE; |
| 605 | pix->pixelformat = q_data->fmt->fourcc; |
| 606 | pix->bytesperline = 0; |
| 607 | if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) { |
| 608 | u32 bpl = q_data->w; |
| 609 | if (q_data->fmt->colplanes == 1) |
| 610 | bpl = (bpl * q_data->fmt->depth) >> 3; |
| 611 | pix->bytesperline = bpl; |
| 612 | } |
| 613 | pix->sizeimage = q_data->size; |
| 614 | |
| 615 | return 0; |
| 616 | } |
| 617 | |
| 618 | static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode, |
| 619 | u32 pixelformat) |
| 620 | { |
| 621 | unsigned int k; |
| 622 | struct s5p_jpeg_fmt *formats; |
| 623 | int n; |
| 624 | |
| 625 | if (mode == S5P_JPEG_ENCODE) { |
| 626 | formats = formats_enc; |
| 627 | n = NUM_FORMATS_ENC; |
| 628 | } else { |
| 629 | formats = formats_dec; |
| 630 | n = NUM_FORMATS_DEC; |
| 631 | } |
| 632 | |
| 633 | for (k = 0; k < n; k++) { |
| 634 | struct s5p_jpeg_fmt *fmt = &formats[k]; |
| 635 | if (fmt->fourcc == pixelformat) |
| 636 | return fmt; |
| 637 | } |
| 638 | |
| 639 | return NULL; |
| 640 | |
| 641 | } |
| 642 | |
| 643 | static void jpeg_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax, |
| 644 | unsigned int walign, |
| 645 | u32 *h, unsigned int hmin, unsigned int hmax, |
| 646 | unsigned int halign) |
| 647 | { |
| 648 | int width, height, w_step, h_step; |
| 649 | |
| 650 | width = *w; |
| 651 | height = *h; |
| 652 | |
| 653 | w_step = 1 << walign; |
| 654 | h_step = 1 << halign; |
| 655 | v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); |
| 656 | |
| 657 | if (*w < width && (*w + w_step) < wmax) |
| 658 | *w += w_step; |
| 659 | if (*h < height && (*h + h_step) < hmax) |
| 660 | *h += h_step; |
| 661 | |
| 662 | } |
| 663 | |
| 664 | static int vidioc_try_fmt(struct v4l2_format *f, struct s5p_jpeg_fmt *fmt, |
| 665 | struct s5p_jpeg_ctx *ctx, int q_type) |
| 666 | { |
| 667 | struct v4l2_pix_format *pix = &f->fmt.pix; |
| 668 | |
| 669 | if (pix->field == V4L2_FIELD_ANY) |
| 670 | pix->field = V4L2_FIELD_NONE; |
| 671 | else if (pix->field != V4L2_FIELD_NONE) |
| 672 | return -EINVAL; |
| 673 | |
| 674 | /* V4L2 specification suggests the driver corrects the format struct |
| 675 | * if any of the dimensions is unsupported */ |
| 676 | if (q_type == MEM2MEM_OUTPUT) |
| 677 | jpeg_bound_align_image(&pix->width, S5P_JPEG_MIN_WIDTH, |
| 678 | S5P_JPEG_MAX_WIDTH, 0, |
| 679 | &pix->height, S5P_JPEG_MIN_HEIGHT, |
| 680 | S5P_JPEG_MAX_HEIGHT, 0); |
| 681 | else |
| 682 | jpeg_bound_align_image(&pix->width, S5P_JPEG_MIN_WIDTH, |
| 683 | S5P_JPEG_MAX_WIDTH, fmt->h_align, |
| 684 | &pix->height, S5P_JPEG_MIN_HEIGHT, |
| 685 | S5P_JPEG_MAX_HEIGHT, fmt->v_align); |
| 686 | |
| 687 | if (fmt->fourcc == V4L2_PIX_FMT_JPEG) { |
| 688 | if (pix->sizeimage <= 0) |
| 689 | pix->sizeimage = PAGE_SIZE; |
| 690 | pix->bytesperline = 0; |
| 691 | } else { |
| 692 | u32 bpl = pix->bytesperline; |
| 693 | |
| 694 | if (fmt->colplanes > 1 && bpl < pix->width) |
| 695 | bpl = pix->width; /* planar */ |
| 696 | |
| 697 | if (fmt->colplanes == 1 && /* packed */ |
| 698 | (bpl << 3) * fmt->depth < pix->width) |
| 699 | bpl = (pix->width * fmt->depth) >> 3; |
| 700 | |
| 701 | pix->bytesperline = bpl; |
| 702 | pix->sizeimage = (pix->width * pix->height * fmt->depth) >> 3; |
| 703 | } |
| 704 | |
| 705 | return 0; |
| 706 | } |
| 707 | |
| 708 | static int s5p_jpeg_try_fmt_vid_cap(struct file *file, void *priv, |
| 709 | struct v4l2_format *f) |
| 710 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 711 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 712 | struct s5p_jpeg_fmt *fmt; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 713 | |
| 714 | fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat); |
| 715 | if (!fmt || !(fmt->types & MEM2MEM_CAPTURE)) { |
| 716 | v4l2_err(&ctx->jpeg->v4l2_dev, |
| 717 | "Fourcc format (0x%08x) invalid.\n", |
| 718 | f->fmt.pix.pixelformat); |
| 719 | return -EINVAL; |
| 720 | } |
| 721 | |
| 722 | return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_CAPTURE); |
| 723 | } |
| 724 | |
| 725 | static int s5p_jpeg_try_fmt_vid_out(struct file *file, void *priv, |
| 726 | struct v4l2_format *f) |
| 727 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 728 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 729 | struct s5p_jpeg_fmt *fmt; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 730 | |
| 731 | fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat); |
| 732 | if (!fmt || !(fmt->types & MEM2MEM_OUTPUT)) { |
| 733 | v4l2_err(&ctx->jpeg->v4l2_dev, |
| 734 | "Fourcc format (0x%08x) invalid.\n", |
| 735 | f->fmt.pix.pixelformat); |
| 736 | return -EINVAL; |
| 737 | } |
| 738 | |
| 739 | return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_OUTPUT); |
| 740 | } |
| 741 | |
| 742 | static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx *ct, struct v4l2_format *f) |
| 743 | { |
| 744 | struct vb2_queue *vq; |
| 745 | struct s5p_jpeg_q_data *q_data = NULL; |
| 746 | struct v4l2_pix_format *pix = &f->fmt.pix; |
| 747 | |
| 748 | vq = v4l2_m2m_get_vq(ct->m2m_ctx, f->type); |
| 749 | if (!vq) |
| 750 | return -EINVAL; |
| 751 | |
| 752 | q_data = get_q_data(ct, f->type); |
| 753 | BUG_ON(q_data == NULL); |
| 754 | |
| 755 | if (vb2_is_busy(vq)) { |
| 756 | v4l2_err(&ct->jpeg->v4l2_dev, "%s queue busy\n", __func__); |
| 757 | return -EBUSY; |
| 758 | } |
| 759 | |
| 760 | q_data->fmt = s5p_jpeg_find_format(ct->mode, pix->pixelformat); |
| 761 | q_data->w = pix->width; |
| 762 | q_data->h = pix->height; |
| 763 | if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) |
| 764 | q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; |
| 765 | else |
| 766 | q_data->size = pix->sizeimage; |
| 767 | |
| 768 | return 0; |
| 769 | } |
| 770 | |
| 771 | static int s5p_jpeg_s_fmt_vid_cap(struct file *file, void *priv, |
| 772 | struct v4l2_format *f) |
| 773 | { |
| 774 | int ret; |
| 775 | |
| 776 | ret = s5p_jpeg_try_fmt_vid_cap(file, priv, f); |
| 777 | if (ret) |
| 778 | return ret; |
| 779 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 780 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 781 | } |
| 782 | |
| 783 | static int s5p_jpeg_s_fmt_vid_out(struct file *file, void *priv, |
| 784 | struct v4l2_format *f) |
| 785 | { |
| 786 | int ret; |
| 787 | |
| 788 | ret = s5p_jpeg_try_fmt_vid_out(file, priv, f); |
| 789 | if (ret) |
| 790 | return ret; |
| 791 | |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 792 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 793 | } |
| 794 | |
| 795 | static int s5p_jpeg_reqbufs(struct file *file, void *priv, |
| 796 | struct v4l2_requestbuffers *reqbufs) |
| 797 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 798 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 799 | |
| 800 | return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); |
| 801 | } |
| 802 | |
| 803 | static int s5p_jpeg_querybuf(struct file *file, void *priv, |
| 804 | struct v4l2_buffer *buf) |
| 805 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 806 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 807 | |
| 808 | return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); |
| 809 | } |
| 810 | |
| 811 | static int s5p_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) |
| 812 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 813 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 814 | |
| 815 | return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); |
| 816 | } |
| 817 | |
| 818 | static int s5p_jpeg_dqbuf(struct file *file, void *priv, |
| 819 | struct v4l2_buffer *buf) |
| 820 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 821 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 822 | |
| 823 | return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); |
| 824 | } |
| 825 | |
| 826 | static int s5p_jpeg_streamon(struct file *file, void *priv, |
| 827 | enum v4l2_buf_type type) |
| 828 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 829 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 830 | |
| 831 | return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); |
| 832 | } |
| 833 | |
| 834 | static int s5p_jpeg_streamoff(struct file *file, void *priv, |
| 835 | enum v4l2_buf_type type) |
| 836 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 837 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 838 | |
| 839 | return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); |
| 840 | } |
| 841 | |
Sachin Kamat | 9f3bd32 | 2012-05-10 03:38:40 -0300 | [diff] [blame] | 842 | static int s5p_jpeg_g_selection(struct file *file, void *priv, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 843 | struct v4l2_selection *s) |
| 844 | { |
Sylwester Nawrocki | 275de24 | 2012-02-17 11:38:09 -0300 | [diff] [blame] | 845 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 846 | |
| 847 | if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| 848 | s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 849 | return -EINVAL; |
| 850 | |
| 851 | /* For JPEG blob active == default == bounds */ |
| 852 | switch (s->target) { |
Sylwester Nawrocki | c133482 | 2012-05-20 11:17:12 -0300 | [diff] [blame] | 853 | case V4L2_SEL_TGT_CROP: |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 854 | case V4L2_SEL_TGT_CROP_BOUNDS: |
| 855 | case V4L2_SEL_TGT_CROP_DEFAULT: |
Sylwester Nawrocki | c133482 | 2012-05-20 11:17:12 -0300 | [diff] [blame] | 856 | case V4L2_SEL_TGT_COMPOSE: |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 857 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: |
| 858 | s->r.width = ctx->out_q.w; |
| 859 | s->r.height = ctx->out_q.h; |
| 860 | break; |
| 861 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: |
| 862 | case V4L2_SEL_TGT_COMPOSE_PADDED: |
| 863 | s->r.width = ctx->cap_q.w; |
| 864 | s->r.height = ctx->cap_q.h; |
| 865 | break; |
| 866 | default: |
| 867 | return -EINVAL; |
| 868 | } |
| 869 | s->r.left = 0; |
| 870 | s->r.top = 0; |
| 871 | return 0; |
| 872 | } |
| 873 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 874 | /* |
| 875 | * V4L2 controls |
| 876 | */ |
| 877 | |
| 878 | static int s5p_jpeg_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 879 | { |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 880 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
| 881 | struct s5p_jpeg *jpeg = ctx->jpeg; |
| 882 | unsigned long flags; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 883 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 884 | switch (ctrl->id) { |
| 885 | case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: |
| 886 | spin_lock_irqsave(&jpeg->slock, flags); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 887 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 888 | WARN_ON(ctx->subsampling > S5P_SUBSAMPLING_MODE_GRAY); |
| 889 | if (ctx->subsampling > 2) |
| 890 | ctrl->val = V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY; |
| 891 | else |
| 892 | ctrl->val = ctx->subsampling; |
| 893 | spin_unlock_irqrestore(&jpeg->slock, flags); |
| 894 | break; |
| 895 | } |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 896 | |
| 897 | return 0; |
| 898 | } |
| 899 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 900 | static int s5p_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 901 | { |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 902 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
| 903 | unsigned long flags; |
| 904 | |
| 905 | spin_lock_irqsave(&ctx->jpeg->slock, flags); |
| 906 | |
| 907 | switch (ctrl->id) { |
| 908 | case V4L2_CID_JPEG_COMPRESSION_QUALITY: |
| 909 | ctx->compr_quality = S5P_JPEG_COMPR_QUAL_WORST - ctrl->val; |
| 910 | break; |
| 911 | case V4L2_CID_JPEG_RESTART_INTERVAL: |
| 912 | ctx->restart_interval = ctrl->val; |
| 913 | break; |
| 914 | case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: |
| 915 | ctx->subsampling = ctrl->val; |
| 916 | break; |
| 917 | } |
| 918 | |
| 919 | spin_unlock_irqrestore(&ctx->jpeg->slock, flags); |
| 920 | return 0; |
| 921 | } |
| 922 | |
| 923 | static const struct v4l2_ctrl_ops s5p_jpeg_ctrl_ops = { |
| 924 | .g_volatile_ctrl = s5p_jpeg_g_volatile_ctrl, |
| 925 | .s_ctrl = s5p_jpeg_s_ctrl, |
| 926 | }; |
| 927 | |
| 928 | static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx) |
| 929 | { |
| 930 | unsigned int mask = ~0x27; /* 444, 422, 420, GRAY */ |
| 931 | struct v4l2_ctrl *ctrl; |
| 932 | |
| 933 | v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3); |
| 934 | |
| 935 | if (ctx->mode == S5P_JPEG_ENCODE) { |
| 936 | v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| 937 | V4L2_CID_JPEG_COMPRESSION_QUALITY, |
| 938 | 0, 3, 1, 3); |
| 939 | |
| 940 | v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| 941 | V4L2_CID_JPEG_RESTART_INTERVAL, |
| 942 | 0, 3, 0xffff, 0); |
| 943 | mask = ~0x06; /* 422, 420 */ |
| 944 | } |
| 945 | |
| 946 | ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| 947 | V4L2_CID_JPEG_CHROMA_SUBSAMPLING, |
| 948 | V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY, mask, |
| 949 | V4L2_JPEG_CHROMA_SUBSAMPLING_422); |
| 950 | |
| 951 | if (ctx->ctrl_handler.error) |
| 952 | return ctx->ctrl_handler.error; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 953 | |
| 954 | if (ctx->mode == S5P_JPEG_DECODE) |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 955 | ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE | |
| 956 | V4L2_CTRL_FLAG_READ_ONLY; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 957 | return 0; |
| 958 | } |
| 959 | |
| 960 | static const struct v4l2_ioctl_ops s5p_jpeg_ioctl_ops = { |
| 961 | .vidioc_querycap = s5p_jpeg_querycap, |
| 962 | |
| 963 | .vidioc_enum_fmt_vid_cap = s5p_jpeg_enum_fmt_vid_cap, |
| 964 | .vidioc_enum_fmt_vid_out = s5p_jpeg_enum_fmt_vid_out, |
| 965 | |
| 966 | .vidioc_g_fmt_vid_cap = s5p_jpeg_g_fmt, |
| 967 | .vidioc_g_fmt_vid_out = s5p_jpeg_g_fmt, |
| 968 | |
| 969 | .vidioc_try_fmt_vid_cap = s5p_jpeg_try_fmt_vid_cap, |
| 970 | .vidioc_try_fmt_vid_out = s5p_jpeg_try_fmt_vid_out, |
| 971 | |
| 972 | .vidioc_s_fmt_vid_cap = s5p_jpeg_s_fmt_vid_cap, |
| 973 | .vidioc_s_fmt_vid_out = s5p_jpeg_s_fmt_vid_out, |
| 974 | |
| 975 | .vidioc_reqbufs = s5p_jpeg_reqbufs, |
| 976 | .vidioc_querybuf = s5p_jpeg_querybuf, |
| 977 | |
| 978 | .vidioc_qbuf = s5p_jpeg_qbuf, |
| 979 | .vidioc_dqbuf = s5p_jpeg_dqbuf, |
| 980 | |
| 981 | .vidioc_streamon = s5p_jpeg_streamon, |
| 982 | .vidioc_streamoff = s5p_jpeg_streamoff, |
| 983 | |
| 984 | .vidioc_g_selection = s5p_jpeg_g_selection, |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 985 | }; |
| 986 | |
| 987 | /* |
| 988 | * ============================================================================ |
| 989 | * mem2mem callbacks |
| 990 | * ============================================================================ |
| 991 | */ |
| 992 | |
| 993 | static void s5p_jpeg_device_run(void *priv) |
| 994 | { |
| 995 | struct s5p_jpeg_ctx *ctx = priv; |
| 996 | struct s5p_jpeg *jpeg = ctx->jpeg; |
| 997 | struct vb2_buffer *src_buf, *dst_buf; |
| 998 | unsigned long src_addr, dst_addr; |
| 999 | |
| 1000 | src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); |
| 1001 | dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); |
| 1002 | src_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); |
| 1003 | dst_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0); |
| 1004 | |
| 1005 | jpeg_reset(jpeg->regs); |
| 1006 | jpeg_poweron(jpeg->regs); |
| 1007 | jpeg_proc_mode(jpeg->regs, ctx->mode); |
| 1008 | if (ctx->mode == S5P_JPEG_ENCODE) { |
| 1009 | if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB565) |
| 1010 | jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_565); |
| 1011 | else |
| 1012 | jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_422); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1013 | jpeg_subsampling_mode(jpeg->regs, ctx->subsampling); |
| 1014 | jpeg_dri(jpeg->regs, ctx->restart_interval); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1015 | jpeg_x(jpeg->regs, ctx->out_q.w); |
| 1016 | jpeg_y(jpeg->regs, ctx->out_q.h); |
| 1017 | jpeg_imgadr(jpeg->regs, src_addr); |
| 1018 | jpeg_jpgadr(jpeg->regs, dst_addr); |
| 1019 | |
| 1020 | /* ultimately comes from sizeimage from userspace */ |
| 1021 | jpeg_enc_stream_int(jpeg->regs, ctx->cap_q.size); |
| 1022 | |
| 1023 | /* JPEG RGB to YCbCr conversion matrix */ |
| 1024 | jpeg_coef(jpeg->regs, 1, 1, S5P_JPEG_COEF11); |
| 1025 | jpeg_coef(jpeg->regs, 1, 2, S5P_JPEG_COEF12); |
| 1026 | jpeg_coef(jpeg->regs, 1, 3, S5P_JPEG_COEF13); |
| 1027 | jpeg_coef(jpeg->regs, 2, 1, S5P_JPEG_COEF21); |
| 1028 | jpeg_coef(jpeg->regs, 2, 2, S5P_JPEG_COEF22); |
| 1029 | jpeg_coef(jpeg->regs, 2, 3, S5P_JPEG_COEF23); |
| 1030 | jpeg_coef(jpeg->regs, 3, 1, S5P_JPEG_COEF31); |
| 1031 | jpeg_coef(jpeg->regs, 3, 2, S5P_JPEG_COEF32); |
| 1032 | jpeg_coef(jpeg->regs, 3, 3, S5P_JPEG_COEF33); |
| 1033 | |
| 1034 | /* |
| 1035 | * JPEG IP allows storing 4 quantization tables |
| 1036 | * We fill table 0 for luma and table 1 for chroma |
| 1037 | */ |
| 1038 | jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality); |
| 1039 | jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality); |
| 1040 | /* use table 0 for Y */ |
| 1041 | jpeg_qtbl(jpeg->regs, 1, 0); |
| 1042 | /* use table 1 for Cb and Cr*/ |
| 1043 | jpeg_qtbl(jpeg->regs, 2, 1); |
| 1044 | jpeg_qtbl(jpeg->regs, 3, 1); |
| 1045 | |
| 1046 | /* Y, Cb, Cr use Huffman table 0 */ |
| 1047 | jpeg_htbl_ac(jpeg->regs, 1); |
| 1048 | jpeg_htbl_dc(jpeg->regs, 1); |
| 1049 | jpeg_htbl_ac(jpeg->regs, 2); |
| 1050 | jpeg_htbl_dc(jpeg->regs, 2); |
| 1051 | jpeg_htbl_ac(jpeg->regs, 3); |
| 1052 | jpeg_htbl_dc(jpeg->regs, 3); |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 1053 | } else { /* S5P_JPEG_DECODE */ |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1054 | jpeg_rst_int_enable(jpeg->regs, true); |
| 1055 | jpeg_data_num_int_enable(jpeg->regs, true); |
| 1056 | jpeg_final_mcu_num_int_enable(jpeg->regs, true); |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 1057 | if (ctx->cap_q.fmt->fourcc == V4L2_PIX_FMT_YUYV) |
| 1058 | jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_422); |
| 1059 | else |
| 1060 | jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_420); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1061 | jpeg_jpgadr(jpeg->regs, src_addr); |
| 1062 | jpeg_imgadr(jpeg->regs, dst_addr); |
| 1063 | } |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1064 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1065 | jpeg_start(jpeg->regs); |
| 1066 | } |
| 1067 | |
| 1068 | static int s5p_jpeg_job_ready(void *priv) |
| 1069 | { |
| 1070 | struct s5p_jpeg_ctx *ctx = priv; |
| 1071 | |
| 1072 | if (ctx->mode == S5P_JPEG_DECODE) |
| 1073 | return ctx->hdr_parsed; |
| 1074 | return 1; |
| 1075 | } |
| 1076 | |
| 1077 | static void s5p_jpeg_job_abort(void *priv) |
| 1078 | { |
| 1079 | } |
| 1080 | |
| 1081 | static struct v4l2_m2m_ops s5p_jpeg_m2m_ops = { |
| 1082 | .device_run = s5p_jpeg_device_run, |
| 1083 | .job_ready = s5p_jpeg_job_ready, |
| 1084 | .job_abort = s5p_jpeg_job_abort, |
| 1085 | }; |
| 1086 | |
| 1087 | /* |
| 1088 | * ============================================================================ |
| 1089 | * Queue operations |
| 1090 | * ============================================================================ |
| 1091 | */ |
| 1092 | |
Marek Szyprowski | 719c174 | 2012-01-13 05:12:38 -0300 | [diff] [blame] | 1093 | static int s5p_jpeg_queue_setup(struct vb2_queue *vq, |
| 1094 | const struct v4l2_format *fmt, |
| 1095 | unsigned int *nbuffers, unsigned int *nplanes, |
| 1096 | unsigned int sizes[], void *alloc_ctxs[]) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1097 | { |
| 1098 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); |
| 1099 | struct s5p_jpeg_q_data *q_data = NULL; |
| 1100 | unsigned int size, count = *nbuffers; |
| 1101 | |
| 1102 | q_data = get_q_data(ctx, vq->type); |
| 1103 | BUG_ON(q_data == NULL); |
| 1104 | |
| 1105 | size = q_data->size; |
| 1106 | |
| 1107 | /* |
| 1108 | * header is parsed during decoding and parsed information stored |
| 1109 | * in the context so we do not allow another buffer to overwrite it |
| 1110 | */ |
| 1111 | if (ctx->mode == S5P_JPEG_DECODE) |
| 1112 | count = 1; |
| 1113 | |
| 1114 | *nbuffers = count; |
| 1115 | *nplanes = 1; |
| 1116 | sizes[0] = size; |
| 1117 | alloc_ctxs[0] = ctx->jpeg->alloc_ctx; |
| 1118 | |
| 1119 | return 0; |
| 1120 | } |
| 1121 | |
| 1122 | static int s5p_jpeg_buf_prepare(struct vb2_buffer *vb) |
| 1123 | { |
| 1124 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| 1125 | struct s5p_jpeg_q_data *q_data = NULL; |
| 1126 | |
| 1127 | q_data = get_q_data(ctx, vb->vb2_queue->type); |
| 1128 | BUG_ON(q_data == NULL); |
| 1129 | |
| 1130 | if (vb2_plane_size(vb, 0) < q_data->size) { |
| 1131 | pr_err("%s data will not fit into plane (%lu < %lu)\n", |
| 1132 | __func__, vb2_plane_size(vb, 0), |
| 1133 | (long)q_data->size); |
| 1134 | return -EINVAL; |
| 1135 | } |
| 1136 | |
| 1137 | vb2_set_plane_payload(vb, 0, q_data->size); |
| 1138 | |
| 1139 | return 0; |
| 1140 | } |
| 1141 | |
| 1142 | static void s5p_jpeg_buf_queue(struct vb2_buffer *vb) |
| 1143 | { |
| 1144 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| 1145 | |
| 1146 | if (ctx->mode == S5P_JPEG_DECODE && |
| 1147 | vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { |
| 1148 | struct s5p_jpeg_q_data tmp, *q_data; |
| 1149 | ctx->hdr_parsed = s5p_jpeg_parse_hdr(&tmp, |
| 1150 | (unsigned long)vb2_plane_vaddr(vb, 0), |
| 1151 | min((unsigned long)ctx->out_q.size, |
| 1152 | vb2_get_plane_payload(vb, 0))); |
| 1153 | if (!ctx->hdr_parsed) { |
| 1154 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); |
| 1155 | return; |
| 1156 | } |
| 1157 | |
| 1158 | q_data = &ctx->out_q; |
| 1159 | q_data->w = tmp.w; |
| 1160 | q_data->h = tmp.h; |
| 1161 | |
| 1162 | q_data = &ctx->cap_q; |
| 1163 | q_data->w = tmp.w; |
| 1164 | q_data->h = tmp.h; |
| 1165 | |
| 1166 | jpeg_bound_align_image(&q_data->w, S5P_JPEG_MIN_WIDTH, |
| 1167 | S5P_JPEG_MAX_WIDTH, q_data->fmt->h_align, |
| 1168 | &q_data->h, S5P_JPEG_MIN_HEIGHT, |
| 1169 | S5P_JPEG_MAX_HEIGHT, q_data->fmt->v_align |
| 1170 | ); |
| 1171 | q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; |
| 1172 | } |
| 1173 | if (ctx->m2m_ctx) |
| 1174 | v4l2_m2m_buf_queue(ctx->m2m_ctx, vb); |
| 1175 | } |
| 1176 | |
| 1177 | static void s5p_jpeg_wait_prepare(struct vb2_queue *vq) |
| 1178 | { |
| 1179 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); |
| 1180 | |
| 1181 | mutex_unlock(&ctx->jpeg->lock); |
| 1182 | } |
| 1183 | |
| 1184 | static void s5p_jpeg_wait_finish(struct vb2_queue *vq) |
| 1185 | { |
| 1186 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); |
| 1187 | |
| 1188 | mutex_lock(&ctx->jpeg->lock); |
| 1189 | } |
| 1190 | |
| 1191 | static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) |
| 1192 | { |
| 1193 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| 1194 | int ret; |
| 1195 | |
| 1196 | ret = pm_runtime_get_sync(ctx->jpeg->dev); |
| 1197 | |
| 1198 | return ret > 0 ? 0 : ret; |
| 1199 | } |
| 1200 | |
| 1201 | static int s5p_jpeg_stop_streaming(struct vb2_queue *q) |
| 1202 | { |
| 1203 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| 1204 | |
| 1205 | pm_runtime_put(ctx->jpeg->dev); |
| 1206 | |
| 1207 | return 0; |
| 1208 | } |
| 1209 | |
| 1210 | static struct vb2_ops s5p_jpeg_qops = { |
| 1211 | .queue_setup = s5p_jpeg_queue_setup, |
| 1212 | .buf_prepare = s5p_jpeg_buf_prepare, |
| 1213 | .buf_queue = s5p_jpeg_buf_queue, |
| 1214 | .wait_prepare = s5p_jpeg_wait_prepare, |
| 1215 | .wait_finish = s5p_jpeg_wait_finish, |
| 1216 | .start_streaming = s5p_jpeg_start_streaming, |
| 1217 | .stop_streaming = s5p_jpeg_stop_streaming, |
| 1218 | }; |
| 1219 | |
| 1220 | static int queue_init(void *priv, struct vb2_queue *src_vq, |
| 1221 | struct vb2_queue *dst_vq) |
| 1222 | { |
| 1223 | struct s5p_jpeg_ctx *ctx = priv; |
| 1224 | int ret; |
| 1225 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1226 | src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| 1227 | src_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| 1228 | src_vq->drv_priv = ctx; |
| 1229 | src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| 1230 | src_vq->ops = &s5p_jpeg_qops; |
| 1231 | src_vq->mem_ops = &vb2_dma_contig_memops; |
Kamil Debski | aca326a | 2013-04-24 10:08:02 -0300 | [diff] [blame] | 1232 | src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1233 | |
| 1234 | ret = vb2_queue_init(src_vq); |
| 1235 | if (ret) |
| 1236 | return ret; |
| 1237 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1238 | dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1239 | dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| 1240 | dst_vq->drv_priv = ctx; |
| 1241 | dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| 1242 | dst_vq->ops = &s5p_jpeg_qops; |
| 1243 | dst_vq->mem_ops = &vb2_dma_contig_memops; |
Kamil Debski | aca326a | 2013-04-24 10:08:02 -0300 | [diff] [blame] | 1244 | dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1245 | |
| 1246 | return vb2_queue_init(dst_vq); |
| 1247 | } |
| 1248 | |
| 1249 | /* |
| 1250 | * ============================================================================ |
| 1251 | * ISR |
| 1252 | * ============================================================================ |
| 1253 | */ |
| 1254 | |
| 1255 | static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id) |
| 1256 | { |
| 1257 | struct s5p_jpeg *jpeg = dev_id; |
| 1258 | struct s5p_jpeg_ctx *curr_ctx; |
| 1259 | struct vb2_buffer *src_buf, *dst_buf; |
| 1260 | unsigned long payload_size = 0; |
| 1261 | enum vb2_buffer_state state = VB2_BUF_STATE_DONE; |
| 1262 | bool enc_jpeg_too_large = false; |
| 1263 | bool timer_elapsed = false; |
| 1264 | bool op_completed = false; |
| 1265 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1266 | spin_lock(&jpeg->slock); |
| 1267 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1268 | curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); |
| 1269 | |
| 1270 | src_buf = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx); |
| 1271 | dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx); |
| 1272 | |
| 1273 | if (curr_ctx->mode == S5P_JPEG_ENCODE) |
| 1274 | enc_jpeg_too_large = jpeg_enc_stream_stat(jpeg->regs); |
| 1275 | timer_elapsed = jpeg_timer_stat(jpeg->regs); |
| 1276 | op_completed = jpeg_result_stat_ok(jpeg->regs); |
| 1277 | if (curr_ctx->mode == S5P_JPEG_DECODE) |
| 1278 | op_completed = op_completed && jpeg_stream_stat_ok(jpeg->regs); |
| 1279 | |
| 1280 | if (enc_jpeg_too_large) { |
| 1281 | state = VB2_BUF_STATE_ERROR; |
| 1282 | jpeg_clear_enc_stream_stat(jpeg->regs); |
| 1283 | } else if (timer_elapsed) { |
| 1284 | state = VB2_BUF_STATE_ERROR; |
| 1285 | jpeg_clear_timer_stat(jpeg->regs); |
| 1286 | } else if (!op_completed) { |
| 1287 | state = VB2_BUF_STATE_ERROR; |
| 1288 | } else { |
| 1289 | payload_size = jpeg_compressed_size(jpeg->regs); |
| 1290 | } |
| 1291 | |
Kamil Debski | aca326a | 2013-04-24 10:08:02 -0300 | [diff] [blame] | 1292 | dst_buf->v4l2_buf.timecode = src_buf->v4l2_buf.timecode; |
| 1293 | dst_buf->v4l2_buf.timestamp = src_buf->v4l2_buf.timestamp; |
| 1294 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1295 | v4l2_m2m_buf_done(src_buf, state); |
| 1296 | if (curr_ctx->mode == S5P_JPEG_ENCODE) |
| 1297 | vb2_set_plane_payload(dst_buf, 0, payload_size); |
| 1298 | v4l2_m2m_buf_done(dst_buf, state); |
| 1299 | v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->m2m_ctx); |
| 1300 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1301 | curr_ctx->subsampling = jpeg_get_subsampling_mode(jpeg->regs); |
| 1302 | spin_unlock(&jpeg->slock); |
Andrzej Pietrasiewicz | fb6f8c0 | 2012-02-20 07:32:25 -0300 | [diff] [blame] | 1303 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1304 | jpeg_clear_int(jpeg->regs); |
| 1305 | |
| 1306 | return IRQ_HANDLED; |
| 1307 | } |
| 1308 | |
| 1309 | /* |
| 1310 | * ============================================================================ |
| 1311 | * Driver basic infrastructure |
| 1312 | * ============================================================================ |
| 1313 | */ |
| 1314 | |
| 1315 | static int s5p_jpeg_probe(struct platform_device *pdev) |
| 1316 | { |
| 1317 | struct s5p_jpeg *jpeg; |
| 1318 | struct resource *res; |
| 1319 | int ret; |
| 1320 | |
| 1321 | /* JPEG IP abstraction struct */ |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1322 | jpeg = devm_kzalloc(&pdev->dev, sizeof(struct s5p_jpeg), GFP_KERNEL); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1323 | if (!jpeg) |
| 1324 | return -ENOMEM; |
| 1325 | |
| 1326 | mutex_init(&jpeg->lock); |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 1327 | spin_lock_init(&jpeg->slock); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1328 | jpeg->dev = &pdev->dev; |
| 1329 | |
| 1330 | /* memory-mapped registers */ |
| 1331 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1332 | |
Thierry Reding | f23999e | 2013-01-21 06:09:07 -0300 | [diff] [blame] | 1333 | jpeg->regs = devm_ioremap_resource(&pdev->dev, res); |
| 1334 | if (IS_ERR(jpeg->regs)) |
| 1335 | return PTR_ERR(jpeg->regs); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1336 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1337 | /* interrupt service routine registration */ |
| 1338 | jpeg->irq = ret = platform_get_irq(pdev, 0); |
| 1339 | if (ret < 0) { |
| 1340 | dev_err(&pdev->dev, "cannot find IRQ\n"); |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1341 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1342 | } |
| 1343 | |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1344 | ret = devm_request_irq(&pdev->dev, jpeg->irq, s5p_jpeg_irq, 0, |
| 1345 | dev_name(&pdev->dev), jpeg); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1346 | if (ret) { |
| 1347 | dev_err(&pdev->dev, "cannot claim IRQ %d\n", jpeg->irq); |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1348 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1349 | } |
| 1350 | |
| 1351 | /* clocks */ |
| 1352 | jpeg->clk = clk_get(&pdev->dev, "jpeg"); |
| 1353 | if (IS_ERR(jpeg->clk)) { |
| 1354 | dev_err(&pdev->dev, "cannot get clock\n"); |
| 1355 | ret = PTR_ERR(jpeg->clk); |
Sachin Kamat | 5b58b95 | 2012-05-14 06:33:34 -0300 | [diff] [blame] | 1356 | return ret; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1357 | } |
| 1358 | dev_dbg(&pdev->dev, "clock source %p\n", jpeg->clk); |
Thomas Abraham | 2c4c03f | 2012-10-02 20:55:02 -0300 | [diff] [blame] | 1359 | clk_prepare_enable(jpeg->clk); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1360 | |
| 1361 | /* v4l2 device */ |
| 1362 | ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev); |
| 1363 | if (ret) { |
| 1364 | dev_err(&pdev->dev, "Failed to register v4l2 device\n"); |
| 1365 | goto clk_get_rollback; |
| 1366 | } |
| 1367 | |
| 1368 | /* mem2mem device */ |
| 1369 | jpeg->m2m_dev = v4l2_m2m_init(&s5p_jpeg_m2m_ops); |
| 1370 | if (IS_ERR(jpeg->m2m_dev)) { |
| 1371 | v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n"); |
| 1372 | ret = PTR_ERR(jpeg->m2m_dev); |
| 1373 | goto device_register_rollback; |
| 1374 | } |
| 1375 | |
| 1376 | jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); |
| 1377 | if (IS_ERR(jpeg->alloc_ctx)) { |
| 1378 | v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n"); |
| 1379 | ret = PTR_ERR(jpeg->alloc_ctx); |
| 1380 | goto m2m_init_rollback; |
| 1381 | } |
| 1382 | |
| 1383 | /* JPEG encoder /dev/videoX node */ |
| 1384 | jpeg->vfd_encoder = video_device_alloc(); |
| 1385 | if (!jpeg->vfd_encoder) { |
| 1386 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); |
| 1387 | ret = -ENOMEM; |
| 1388 | goto vb2_allocator_rollback; |
| 1389 | } |
| 1390 | strlcpy(jpeg->vfd_encoder->name, S5P_JPEG_M2M_NAME, |
| 1391 | sizeof(jpeg->vfd_encoder->name)); |
| 1392 | jpeg->vfd_encoder->fops = &s5p_jpeg_fops; |
| 1393 | jpeg->vfd_encoder->ioctl_ops = &s5p_jpeg_ioctl_ops; |
| 1394 | jpeg->vfd_encoder->minor = -1; |
| 1395 | jpeg->vfd_encoder->release = video_device_release; |
| 1396 | jpeg->vfd_encoder->lock = &jpeg->lock; |
| 1397 | jpeg->vfd_encoder->v4l2_dev = &jpeg->v4l2_dev; |
Hans Verkuil | 954f340 | 2012-09-05 06:05:50 -0300 | [diff] [blame] | 1398 | jpeg->vfd_encoder->vfl_dir = VFL_DIR_M2M; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1399 | |
| 1400 | ret = video_register_device(jpeg->vfd_encoder, VFL_TYPE_GRABBER, -1); |
| 1401 | if (ret) { |
| 1402 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); |
| 1403 | goto enc_vdev_alloc_rollback; |
| 1404 | } |
| 1405 | |
| 1406 | video_set_drvdata(jpeg->vfd_encoder, jpeg); |
| 1407 | v4l2_info(&jpeg->v4l2_dev, |
| 1408 | "encoder device registered as /dev/video%d\n", |
| 1409 | jpeg->vfd_encoder->num); |
| 1410 | |
| 1411 | /* JPEG decoder /dev/videoX node */ |
| 1412 | jpeg->vfd_decoder = video_device_alloc(); |
| 1413 | if (!jpeg->vfd_decoder) { |
| 1414 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); |
| 1415 | ret = -ENOMEM; |
| 1416 | goto enc_vdev_register_rollback; |
| 1417 | } |
| 1418 | strlcpy(jpeg->vfd_decoder->name, S5P_JPEG_M2M_NAME, |
| 1419 | sizeof(jpeg->vfd_decoder->name)); |
| 1420 | jpeg->vfd_decoder->fops = &s5p_jpeg_fops; |
| 1421 | jpeg->vfd_decoder->ioctl_ops = &s5p_jpeg_ioctl_ops; |
| 1422 | jpeg->vfd_decoder->minor = -1; |
| 1423 | jpeg->vfd_decoder->release = video_device_release; |
| 1424 | jpeg->vfd_decoder->lock = &jpeg->lock; |
| 1425 | jpeg->vfd_decoder->v4l2_dev = &jpeg->v4l2_dev; |
Jacek Anaszewski | 7f7d8fe | 2013-09-11 06:17:45 -0300 | [diff] [blame^] | 1426 | jpeg->vfd_decoder->vfl_dir = VFL_DIR_M2M; |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1427 | |
| 1428 | ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1); |
| 1429 | if (ret) { |
| 1430 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); |
| 1431 | goto dec_vdev_alloc_rollback; |
| 1432 | } |
| 1433 | |
| 1434 | video_set_drvdata(jpeg->vfd_decoder, jpeg); |
| 1435 | v4l2_info(&jpeg->v4l2_dev, |
| 1436 | "decoder device registered as /dev/video%d\n", |
| 1437 | jpeg->vfd_decoder->num); |
| 1438 | |
| 1439 | /* final statements & power management */ |
| 1440 | platform_set_drvdata(pdev, jpeg); |
| 1441 | |
| 1442 | pm_runtime_enable(&pdev->dev); |
| 1443 | |
| 1444 | v4l2_info(&jpeg->v4l2_dev, "Samsung S5P JPEG codec\n"); |
| 1445 | |
| 1446 | return 0; |
| 1447 | |
| 1448 | dec_vdev_alloc_rollback: |
| 1449 | video_device_release(jpeg->vfd_decoder); |
| 1450 | |
| 1451 | enc_vdev_register_rollback: |
| 1452 | video_unregister_device(jpeg->vfd_encoder); |
| 1453 | |
| 1454 | enc_vdev_alloc_rollback: |
| 1455 | video_device_release(jpeg->vfd_encoder); |
| 1456 | |
| 1457 | vb2_allocator_rollback: |
| 1458 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); |
| 1459 | |
| 1460 | m2m_init_rollback: |
| 1461 | v4l2_m2m_release(jpeg->m2m_dev); |
| 1462 | |
| 1463 | device_register_rollback: |
| 1464 | v4l2_device_unregister(&jpeg->v4l2_dev); |
| 1465 | |
| 1466 | clk_get_rollback: |
Thomas Abraham | 2c4c03f | 2012-10-02 20:55:02 -0300 | [diff] [blame] | 1467 | clk_disable_unprepare(jpeg->clk); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1468 | clk_put(jpeg->clk); |
| 1469 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1470 | return ret; |
| 1471 | } |
| 1472 | |
| 1473 | static int s5p_jpeg_remove(struct platform_device *pdev) |
| 1474 | { |
| 1475 | struct s5p_jpeg *jpeg = platform_get_drvdata(pdev); |
| 1476 | |
| 1477 | pm_runtime_disable(jpeg->dev); |
| 1478 | |
| 1479 | video_unregister_device(jpeg->vfd_decoder); |
| 1480 | video_device_release(jpeg->vfd_decoder); |
| 1481 | video_unregister_device(jpeg->vfd_encoder); |
| 1482 | video_device_release(jpeg->vfd_encoder); |
| 1483 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); |
| 1484 | v4l2_m2m_release(jpeg->m2m_dev); |
| 1485 | v4l2_device_unregister(&jpeg->v4l2_dev); |
| 1486 | |
Thomas Abraham | 2c4c03f | 2012-10-02 20:55:02 -0300 | [diff] [blame] | 1487 | clk_disable_unprepare(jpeg->clk); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1488 | clk_put(jpeg->clk); |
| 1489 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1490 | return 0; |
| 1491 | } |
| 1492 | |
| 1493 | static int s5p_jpeg_runtime_suspend(struct device *dev) |
| 1494 | { |
| 1495 | return 0; |
| 1496 | } |
| 1497 | |
| 1498 | static int s5p_jpeg_runtime_resume(struct device *dev) |
| 1499 | { |
| 1500 | struct s5p_jpeg *jpeg = dev_get_drvdata(dev); |
| 1501 | /* |
| 1502 | * JPEG IP allows storing two Huffman tables for each component |
| 1503 | * We fill table 0 for each component |
| 1504 | */ |
| 1505 | jpeg_set_hdctbl(jpeg->regs); |
| 1506 | jpeg_set_hdctblg(jpeg->regs); |
| 1507 | jpeg_set_hactbl(jpeg->regs); |
| 1508 | jpeg_set_hactblg(jpeg->regs); |
| 1509 | return 0; |
| 1510 | } |
| 1511 | |
| 1512 | static const struct dev_pm_ops s5p_jpeg_pm_ops = { |
| 1513 | .runtime_suspend = s5p_jpeg_runtime_suspend, |
| 1514 | .runtime_resume = s5p_jpeg_runtime_resume, |
| 1515 | }; |
| 1516 | |
| 1517 | static struct platform_driver s5p_jpeg_driver = { |
| 1518 | .probe = s5p_jpeg_probe, |
| 1519 | .remove = s5p_jpeg_remove, |
| 1520 | .driver = { |
| 1521 | .owner = THIS_MODULE, |
| 1522 | .name = S5P_JPEG_M2M_NAME, |
| 1523 | .pm = &s5p_jpeg_pm_ops, |
| 1524 | }, |
| 1525 | }; |
| 1526 | |
Sachin Kamat | 87e9429 | 2012-07-03 05:54:33 -0300 | [diff] [blame] | 1527 | module_platform_driver(s5p_jpeg_driver); |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 1528 | |
| 1529 | MODULE_AUTHOR("Andrzej Pietrasiewicz <andrzej.p@samsung.com>"); |
| 1530 | MODULE_DESCRIPTION("Samsung JPEG codec driver"); |
| 1531 | MODULE_LICENSE("GPL"); |
| 1532 | |