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bb677f3a AP |
1 | /* linux/drivers/media/video/s5p-jpeg/jpeg-core.c |
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 | { | |
fb6f8c02 AP |
35 | .name = "JPEG JFIF", |
36 | .fourcc = V4L2_PIX_FMT_JPEG, | |
37 | .colplanes = 1, | |
bb677f3a AP |
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, | |
fb6f8c02 | 45 | .types = MEM2MEM_OUTPUT, |
bb677f3a AP |
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 | ||
15f4bc3b SN |
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 | ||
275de24d SN |
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 | ||
bb677f3a AP |
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); | |
15f4bc3b | 281 | static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx); |
bb677f3a AP |
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; | |
275de24d | 289 | int ret = 0; |
bb677f3a AP |
290 | |
291 | ctx = kzalloc(sizeof *ctx, GFP_KERNEL); | |
292 | if (!ctx) | |
293 | return -ENOMEM; | |
294 | ||
b0d5cd6b HV |
295 | if (mutex_lock_interruptible(&jpeg->lock)) { |
296 | ret = -ERESTARTSYS; | |
297 | goto free; | |
298 | } | |
299 | ||
275de24d | 300 | v4l2_fh_init(&ctx->fh, vfd); |
15f4bc3b SN |
301 | /* Use separate control handler per file handle */ |
302 | ctx->fh.ctrl_handler = &ctx->ctrl_handler; | |
275de24d SN |
303 | file->private_data = &ctx->fh; |
304 | v4l2_fh_add(&ctx->fh); | |
305 | ||
bb677f3a AP |
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 | ||
15f4bc3b SN |
315 | ret = s5p_jpeg_controls_create(ctx); |
316 | if (ret < 0) | |
317 | goto error; | |
318 | ||
bb677f3a AP |
319 | ctx->m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init); |
320 | if (IS_ERR(ctx->m2m_ctx)) { | |
275de24d SN |
321 | ret = PTR_ERR(ctx->m2m_ctx); |
322 | goto error; | |
bb677f3a AP |
323 | } |
324 | ||
325 | ctx->out_q.fmt = out_fmt; | |
326 | ctx->cap_q.fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_YUYV); | |
b0d5cd6b | 327 | mutex_unlock(&jpeg->lock); |
bb677f3a | 328 | return 0; |
275de24d SN |
329 | |
330 | error: | |
331 | v4l2_fh_del(&ctx->fh); | |
332 | v4l2_fh_exit(&ctx->fh); | |
b0d5cd6b HV |
333 | mutex_unlock(&jpeg->lock); |
334 | free: | |
275de24d SN |
335 | kfree(ctx); |
336 | return ret; | |
bb677f3a AP |
337 | } |
338 | ||
339 | static int s5p_jpeg_release(struct file *file) | |
340 | { | |
b0d5cd6b | 341 | struct s5p_jpeg *jpeg = video_drvdata(file); |
275de24d | 342 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
bb677f3a | 343 | |
b0d5cd6b | 344 | mutex_lock(&jpeg->lock); |
bb677f3a | 345 | v4l2_m2m_ctx_release(ctx->m2m_ctx); |
b0d5cd6b | 346 | mutex_unlock(&jpeg->lock); |
15f4bc3b | 347 | v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
275de24d SN |
348 | v4l2_fh_del(&ctx->fh); |
349 | v4l2_fh_exit(&ctx->fh); | |
bb677f3a AP |
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 | { | |
b0d5cd6b | 358 | struct s5p_jpeg *jpeg = video_drvdata(file); |
275de24d | 359 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
b0d5cd6b | 360 | unsigned int res; |
bb677f3a | 361 | |
b0d5cd6b HV |
362 | mutex_lock(&jpeg->lock); |
363 | res = v4l2_m2m_poll(file, ctx->m2m_ctx, wait); | |
364 | mutex_unlock(&jpeg->lock); | |
365 | return res; | |
bb677f3a AP |
366 | } |
367 | ||
368 | static int s5p_jpeg_mmap(struct file *file, struct vm_area_struct *vma) | |
369 | { | |
b0d5cd6b | 370 | struct s5p_jpeg *jpeg = video_drvdata(file); |
275de24d | 371 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
b0d5cd6b | 372 | int ret; |
bb677f3a | 373 | |
b0d5cd6b HV |
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; | |
bb677f3a AP |
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 | { | |
275de24d | 500 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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; | |
f0476a83 SN |
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; | |
bb677f3a AP |
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 | { | |
275de24d | 553 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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 | { | |
275de24d | 565 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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; | |
275de24d | 590 | struct s5p_jpeg_ctx *ct = fh_to_ctx(priv); |
bb677f3a AP |
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 | { | |
275de24d | 711 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a | 712 | struct s5p_jpeg_fmt *fmt; |
bb677f3a AP |
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 | { | |
275de24d | 728 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a | 729 | struct s5p_jpeg_fmt *fmt; |
bb677f3a AP |
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 | ||
275de24d | 780 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
bb677f3a AP |
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 | ||
275de24d | 792 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
bb677f3a AP |
793 | } |
794 | ||
795 | static int s5p_jpeg_reqbufs(struct file *file, void *priv, | |
796 | struct v4l2_requestbuffers *reqbufs) | |
797 | { | |
275de24d | 798 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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 | { | |
275de24d | 806 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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 | { | |
275de24d | 813 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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 | { | |
275de24d | 821 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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 | { | |
275de24d | 829 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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 | { | |
275de24d | 837 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
838 | |
839 | return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); | |
840 | } | |
841 | ||
9f3bd320 | 842 | static int s5p_jpeg_g_selection(struct file *file, void *priv, |
bb677f3a AP |
843 | struct v4l2_selection *s) |
844 | { | |
275de24d | 845 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
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) { | |
c1334823 | 853 | case V4L2_SEL_TGT_CROP: |
bb677f3a AP |
854 | case V4L2_SEL_TGT_CROP_BOUNDS: |
855 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
c1334823 | 856 | case V4L2_SEL_TGT_COMPOSE: |
bb677f3a AP |
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 | ||
15f4bc3b SN |
874 | /* |
875 | * V4L2 controls | |
876 | */ | |
877 | ||
878 | static int s5p_jpeg_g_volatile_ctrl(struct v4l2_ctrl *ctrl) | |
bb677f3a | 879 | { |
15f4bc3b SN |
880 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
881 | struct s5p_jpeg *jpeg = ctx->jpeg; | |
882 | unsigned long flags; | |
bb677f3a | 883 | |
15f4bc3b SN |
884 | switch (ctrl->id) { |
885 | case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: | |
886 | spin_lock_irqsave(&jpeg->slock, flags); | |
bb677f3a | 887 | |
15f4bc3b SN |
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 | } | |
bb677f3a AP |
896 | |
897 | return 0; | |
898 | } | |
899 | ||
15f4bc3b | 900 | static int s5p_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) |
bb677f3a | 901 | { |
15f4bc3b SN |
902 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
903 | unsigned long flags; | |
bb677f3a | 904 | |
15f4bc3b | 905 | spin_lock_irqsave(&ctx->jpeg->slock, flags); |
bb677f3a | 906 | |
15f4bc3b SN |
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); | |
bb677f3a | 934 | |
15f4bc3b SN |
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); | |
bb677f3a | 950 | |
15f4bc3b SN |
951 | if (ctx->ctrl_handler.error) |
952 | return ctx->ctrl_handler.error; | |
953 | ||
954 | if (ctx->mode == S5P_JPEG_DECODE) | |
955 | ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE | | |
956 | V4L2_CTRL_FLAG_READ_ONLY; | |
bb677f3a AP |
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, | |
bb677f3a AP |
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); | |
15f4bc3b SN |
1013 | jpeg_subsampling_mode(jpeg->regs, ctx->subsampling); |
1014 | jpeg_dri(jpeg->regs, ctx->restart_interval); | |
bb677f3a AP |
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); | |
fb6f8c02 | 1053 | } else { /* S5P_JPEG_DECODE */ |
bb677f3a AP |
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); | |
fb6f8c02 AP |
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); | |
bb677f3a AP |
1061 | jpeg_jpgadr(jpeg->regs, src_addr); |
1062 | jpeg_imgadr(jpeg->regs, dst_addr); | |
1063 | } | |
15f4bc3b | 1064 | |
bb677f3a AP |
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 | ||
719c174e MS |
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[]) | |
bb677f3a AP |
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 | ||
1226 | memset(src_vq, 0, sizeof(*src_vq)); | |
1227 | src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
1228 | src_vq->io_modes = VB2_MMAP | VB2_USERPTR; | |
1229 | src_vq->drv_priv = ctx; | |
1230 | src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1231 | src_vq->ops = &s5p_jpeg_qops; | |
1232 | src_vq->mem_ops = &vb2_dma_contig_memops; | |
1233 | ||
1234 | ret = vb2_queue_init(src_vq); | |
1235 | if (ret) | |
1236 | return ret; | |
1237 | ||
1238 | memset(dst_vq, 0, sizeof(*dst_vq)); | |
1239 | dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1240 | dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; | |
1241 | dst_vq->drv_priv = ctx; | |
1242 | dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1243 | dst_vq->ops = &s5p_jpeg_qops; | |
1244 | dst_vq->mem_ops = &vb2_dma_contig_memops; | |
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 | ||
15f4bc3b SN |
1266 | spin_lock(&jpeg->slock); |
1267 | ||
bb677f3a AP |
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 | ||
1292 | v4l2_m2m_buf_done(src_buf, state); | |
1293 | if (curr_ctx->mode == S5P_JPEG_ENCODE) | |
1294 | vb2_set_plane_payload(dst_buf, 0, payload_size); | |
1295 | v4l2_m2m_buf_done(dst_buf, state); | |
1296 | v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->m2m_ctx); | |
1297 | ||
15f4bc3b SN |
1298 | curr_ctx->subsampling = jpeg_get_subsampling_mode(jpeg->regs); |
1299 | spin_unlock(&jpeg->slock); | |
fb6f8c02 | 1300 | |
bb677f3a AP |
1301 | jpeg_clear_int(jpeg->regs); |
1302 | ||
1303 | return IRQ_HANDLED; | |
1304 | } | |
1305 | ||
1306 | /* | |
1307 | * ============================================================================ | |
1308 | * Driver basic infrastructure | |
1309 | * ============================================================================ | |
1310 | */ | |
1311 | ||
1312 | static int s5p_jpeg_probe(struct platform_device *pdev) | |
1313 | { | |
1314 | struct s5p_jpeg *jpeg; | |
1315 | struct resource *res; | |
1316 | int ret; | |
1317 | ||
1318 | /* JPEG IP abstraction struct */ | |
5b58b954 | 1319 | jpeg = devm_kzalloc(&pdev->dev, sizeof(struct s5p_jpeg), GFP_KERNEL); |
bb677f3a AP |
1320 | if (!jpeg) |
1321 | return -ENOMEM; | |
1322 | ||
1323 | mutex_init(&jpeg->lock); | |
15f4bc3b | 1324 | spin_lock_init(&jpeg->slock); |
bb677f3a AP |
1325 | jpeg->dev = &pdev->dev; |
1326 | ||
1327 | /* memory-mapped registers */ | |
1328 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
bb677f3a | 1329 | |
5b58b954 SK |
1330 | jpeg->regs = devm_request_and_ioremap(&pdev->dev, res); |
1331 | if (jpeg->regs == NULL) { | |
1332 | dev_err(&pdev->dev, "Failed to obtain io memory\n"); | |
1333 | return -ENOENT; | |
bb677f3a AP |
1334 | } |
1335 | ||
bb677f3a AP |
1336 | /* interrupt service routine registration */ |
1337 | jpeg->irq = ret = platform_get_irq(pdev, 0); | |
1338 | if (ret < 0) { | |
1339 | dev_err(&pdev->dev, "cannot find IRQ\n"); | |
5b58b954 | 1340 | return ret; |
bb677f3a AP |
1341 | } |
1342 | ||
5b58b954 SK |
1343 | ret = devm_request_irq(&pdev->dev, jpeg->irq, s5p_jpeg_irq, 0, |
1344 | dev_name(&pdev->dev), jpeg); | |
bb677f3a AP |
1345 | if (ret) { |
1346 | dev_err(&pdev->dev, "cannot claim IRQ %d\n", jpeg->irq); | |
5b58b954 | 1347 | return ret; |
bb677f3a AP |
1348 | } |
1349 | ||
1350 | /* clocks */ | |
1351 | jpeg->clk = clk_get(&pdev->dev, "jpeg"); | |
1352 | if (IS_ERR(jpeg->clk)) { | |
1353 | dev_err(&pdev->dev, "cannot get clock\n"); | |
1354 | ret = PTR_ERR(jpeg->clk); | |
5b58b954 | 1355 | return ret; |
bb677f3a AP |
1356 | } |
1357 | dev_dbg(&pdev->dev, "clock source %p\n", jpeg->clk); | |
1358 | clk_enable(jpeg->clk); | |
1359 | ||
1360 | /* v4l2 device */ | |
1361 | ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev); | |
1362 | if (ret) { | |
1363 | dev_err(&pdev->dev, "Failed to register v4l2 device\n"); | |
1364 | goto clk_get_rollback; | |
1365 | } | |
1366 | ||
1367 | /* mem2mem device */ | |
1368 | jpeg->m2m_dev = v4l2_m2m_init(&s5p_jpeg_m2m_ops); | |
1369 | if (IS_ERR(jpeg->m2m_dev)) { | |
1370 | v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n"); | |
1371 | ret = PTR_ERR(jpeg->m2m_dev); | |
1372 | goto device_register_rollback; | |
1373 | } | |
1374 | ||
1375 | jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); | |
1376 | if (IS_ERR(jpeg->alloc_ctx)) { | |
1377 | v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n"); | |
1378 | ret = PTR_ERR(jpeg->alloc_ctx); | |
1379 | goto m2m_init_rollback; | |
1380 | } | |
1381 | ||
1382 | /* JPEG encoder /dev/videoX node */ | |
1383 | jpeg->vfd_encoder = video_device_alloc(); | |
1384 | if (!jpeg->vfd_encoder) { | |
1385 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); | |
1386 | ret = -ENOMEM; | |
1387 | goto vb2_allocator_rollback; | |
1388 | } | |
1389 | strlcpy(jpeg->vfd_encoder->name, S5P_JPEG_M2M_NAME, | |
1390 | sizeof(jpeg->vfd_encoder->name)); | |
1391 | jpeg->vfd_encoder->fops = &s5p_jpeg_fops; | |
1392 | jpeg->vfd_encoder->ioctl_ops = &s5p_jpeg_ioctl_ops; | |
1393 | jpeg->vfd_encoder->minor = -1; | |
1394 | jpeg->vfd_encoder->release = video_device_release; | |
1395 | jpeg->vfd_encoder->lock = &jpeg->lock; | |
1396 | jpeg->vfd_encoder->v4l2_dev = &jpeg->v4l2_dev; | |
1397 | ||
1398 | ret = video_register_device(jpeg->vfd_encoder, VFL_TYPE_GRABBER, -1); | |
1399 | if (ret) { | |
1400 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); | |
1401 | goto enc_vdev_alloc_rollback; | |
1402 | } | |
1403 | ||
1404 | video_set_drvdata(jpeg->vfd_encoder, jpeg); | |
1405 | v4l2_info(&jpeg->v4l2_dev, | |
1406 | "encoder device registered as /dev/video%d\n", | |
1407 | jpeg->vfd_encoder->num); | |
1408 | ||
1409 | /* JPEG decoder /dev/videoX node */ | |
1410 | jpeg->vfd_decoder = video_device_alloc(); | |
1411 | if (!jpeg->vfd_decoder) { | |
1412 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); | |
1413 | ret = -ENOMEM; | |
1414 | goto enc_vdev_register_rollback; | |
1415 | } | |
1416 | strlcpy(jpeg->vfd_decoder->name, S5P_JPEG_M2M_NAME, | |
1417 | sizeof(jpeg->vfd_decoder->name)); | |
1418 | jpeg->vfd_decoder->fops = &s5p_jpeg_fops; | |
1419 | jpeg->vfd_decoder->ioctl_ops = &s5p_jpeg_ioctl_ops; | |
1420 | jpeg->vfd_decoder->minor = -1; | |
1421 | jpeg->vfd_decoder->release = video_device_release; | |
1422 | jpeg->vfd_decoder->lock = &jpeg->lock; | |
1423 | jpeg->vfd_decoder->v4l2_dev = &jpeg->v4l2_dev; | |
1424 | ||
1425 | ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1); | |
1426 | if (ret) { | |
1427 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); | |
1428 | goto dec_vdev_alloc_rollback; | |
1429 | } | |
1430 | ||
1431 | video_set_drvdata(jpeg->vfd_decoder, jpeg); | |
1432 | v4l2_info(&jpeg->v4l2_dev, | |
1433 | "decoder device registered as /dev/video%d\n", | |
1434 | jpeg->vfd_decoder->num); | |
1435 | ||
1436 | /* final statements & power management */ | |
1437 | platform_set_drvdata(pdev, jpeg); | |
1438 | ||
1439 | pm_runtime_enable(&pdev->dev); | |
1440 | ||
1441 | v4l2_info(&jpeg->v4l2_dev, "Samsung S5P JPEG codec\n"); | |
1442 | ||
1443 | return 0; | |
1444 | ||
1445 | dec_vdev_alloc_rollback: | |
1446 | video_device_release(jpeg->vfd_decoder); | |
1447 | ||
1448 | enc_vdev_register_rollback: | |
1449 | video_unregister_device(jpeg->vfd_encoder); | |
1450 | ||
1451 | enc_vdev_alloc_rollback: | |
1452 | video_device_release(jpeg->vfd_encoder); | |
1453 | ||
1454 | vb2_allocator_rollback: | |
1455 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); | |
1456 | ||
1457 | m2m_init_rollback: | |
1458 | v4l2_m2m_release(jpeg->m2m_dev); | |
1459 | ||
1460 | device_register_rollback: | |
1461 | v4l2_device_unregister(&jpeg->v4l2_dev); | |
1462 | ||
1463 | clk_get_rollback: | |
1464 | clk_disable(jpeg->clk); | |
1465 | clk_put(jpeg->clk); | |
1466 | ||
bb677f3a AP |
1467 | return ret; |
1468 | } | |
1469 | ||
1470 | static int s5p_jpeg_remove(struct platform_device *pdev) | |
1471 | { | |
1472 | struct s5p_jpeg *jpeg = platform_get_drvdata(pdev); | |
1473 | ||
1474 | pm_runtime_disable(jpeg->dev); | |
1475 | ||
1476 | video_unregister_device(jpeg->vfd_decoder); | |
1477 | video_device_release(jpeg->vfd_decoder); | |
1478 | video_unregister_device(jpeg->vfd_encoder); | |
1479 | video_device_release(jpeg->vfd_encoder); | |
1480 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); | |
1481 | v4l2_m2m_release(jpeg->m2m_dev); | |
1482 | v4l2_device_unregister(&jpeg->v4l2_dev); | |
1483 | ||
1484 | clk_disable(jpeg->clk); | |
1485 | clk_put(jpeg->clk); | |
1486 | ||
bb677f3a AP |
1487 | return 0; |
1488 | } | |
1489 | ||
1490 | static int s5p_jpeg_runtime_suspend(struct device *dev) | |
1491 | { | |
1492 | return 0; | |
1493 | } | |
1494 | ||
1495 | static int s5p_jpeg_runtime_resume(struct device *dev) | |
1496 | { | |
1497 | struct s5p_jpeg *jpeg = dev_get_drvdata(dev); | |
1498 | /* | |
1499 | * JPEG IP allows storing two Huffman tables for each component | |
1500 | * We fill table 0 for each component | |
1501 | */ | |
1502 | jpeg_set_hdctbl(jpeg->regs); | |
1503 | jpeg_set_hdctblg(jpeg->regs); | |
1504 | jpeg_set_hactbl(jpeg->regs); | |
1505 | jpeg_set_hactblg(jpeg->regs); | |
1506 | return 0; | |
1507 | } | |
1508 | ||
1509 | static const struct dev_pm_ops s5p_jpeg_pm_ops = { | |
1510 | .runtime_suspend = s5p_jpeg_runtime_suspend, | |
1511 | .runtime_resume = s5p_jpeg_runtime_resume, | |
1512 | }; | |
1513 | ||
1514 | static struct platform_driver s5p_jpeg_driver = { | |
1515 | .probe = s5p_jpeg_probe, | |
1516 | .remove = s5p_jpeg_remove, | |
1517 | .driver = { | |
1518 | .owner = THIS_MODULE, | |
1519 | .name = S5P_JPEG_M2M_NAME, | |
1520 | .pm = &s5p_jpeg_pm_ops, | |
1521 | }, | |
1522 | }; | |
1523 | ||
87e94294 | 1524 | module_platform_driver(s5p_jpeg_driver); |
bb677f3a AP |
1525 | |
1526 | MODULE_AUTHOR("Andrzej Pietrasiewicz <andrzej.p@samsung.com>"); | |
1527 | MODULE_DESCRIPTION("Samsung JPEG codec driver"); | |
1528 | MODULE_LICENSE("GPL"); | |
1529 |