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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
33static struct s5p_jpeg_fmt formats_enc[] = {
34 {
35 .name = "JPEG JFIF",
36 .fourcc = V4L2_PIX_FMT_JPEG,
37 .colplanes = 1,
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,
45 .types = MEM2MEM_OUTPUT,
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
57static 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
85static const unsigned char qtbl_luminance[4][64] = {
86 {
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 {
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 {
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 {
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
128static const unsigned char qtbl_chrominance[4][64] = {
129 {
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 {
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 {
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 {
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
171static const unsigned char hdctbl0[16] = {
172 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0
173};
174
175static const unsigned char hdctblg0[12] = {
176 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb
177};
178static const unsigned char hactbl0[16] = {
179 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d
180};
181static 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
205static 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
210static 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
215static 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
224static inline void jpeg_set_qtbl_lum(void __iomem *regs, int quality)
225{
226
227 jpeg_set_qtbl(regs, qtbl_luminance[quality], S5P_JPG_QTBL_CONTENT(0),
228 ARRAY_SIZE(qtbl_luminance[quality]));
229}
230
231static inline void jpeg_set_qtbl_chr(void __iomem *regs, int quality)
232{
233
234 jpeg_set_qtbl(regs, qtbl_chrominance[quality], S5P_JPG_QTBL_CONTENT(1),
235 ARRAY_SIZE(qtbl_chrominance[quality]));
236}
237
238static 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
247static inline void jpeg_set_hdctbl(void __iomem *regs)
248{
249
250 jpeg_set_htbl(regs, hdctbl0, S5P_JPG_HDCTBL(0), ARRAY_SIZE(hdctbl0));
251}
252
253static inline void jpeg_set_hdctblg(void __iomem *regs)
254{
255
256 jpeg_set_htbl(regs, hdctblg0, S5P_JPG_HDCTBLG(0), ARRAY_SIZE(hdctblg0));
257}
258
259static inline void jpeg_set_hactbl(void __iomem *regs)
260{
261
262 jpeg_set_htbl(regs, hactbl0, S5P_JPG_HACTBL(0), ARRAY_SIZE(hactbl0));
263}
264
265static inline void jpeg_set_hactblg(void __iomem *regs)
266{
267
268 jpeg_set_htbl(regs, hactblg0, S5P_JPG_HACTBLG(0), ARRAY_SIZE(hactblg0));
269}
270
271
272
273
274
275
276
277static int queue_init(void *priv, struct vb2_queue *src_vq,
278 struct vb2_queue *dst_vq);
279static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode,
280 __u32 pixelformat);
281static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx);
282
283static 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;
289 int ret = 0;
290
291 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
292 if (!ctx)
293 return -ENOMEM;
294
295 if (mutex_lock_interruptible(&jpeg->lock)) {
296 ret = -ERESTARTSYS;
297 goto free;
298 }
299
300 v4l2_fh_init(&ctx->fh, vfd);
301
302 ctx->fh.ctrl_handler = &ctx->ctrl_handler;
303 file->private_data = &ctx->fh;
304 v4l2_fh_add(&ctx->fh);
305
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
315 ret = s5p_jpeg_controls_create(ctx);
316 if (ret < 0)
317 goto error;
318
319 ctx->m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init);
320 if (IS_ERR(ctx->m2m_ctx)) {
321 ret = PTR_ERR(ctx->m2m_ctx);
322 goto error;
323 }
324
325 ctx->out_q.fmt = out_fmt;
326 ctx->cap_q.fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_YUYV);
327 mutex_unlock(&jpeg->lock);
328 return 0;
329
330error:
331 v4l2_fh_del(&ctx->fh);
332 v4l2_fh_exit(&ctx->fh);
333 mutex_unlock(&jpeg->lock);
334free:
335 kfree(ctx);
336 return ret;
337}
338
339static int s5p_jpeg_release(struct file *file)
340{
341 struct s5p_jpeg *jpeg = video_drvdata(file);
342 struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data);
343
344 mutex_lock(&jpeg->lock);
345 v4l2_m2m_ctx_release(ctx->m2m_ctx);
346 mutex_unlock(&jpeg->lock);
347 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
348 v4l2_fh_del(&ctx->fh);
349 v4l2_fh_exit(&ctx->fh);
350 kfree(ctx);
351
352 return 0;
353}
354
355static unsigned int s5p_jpeg_poll(struct file *file,
356 struct poll_table_struct *wait)
357{
358 struct s5p_jpeg *jpeg = video_drvdata(file);
359 struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data);
360 unsigned int res;
361
362 mutex_lock(&jpeg->lock);
363 res = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
364 mutex_unlock(&jpeg->lock);
365 return res;
366}
367
368static int s5p_jpeg_mmap(struct file *file, struct vm_area_struct *vma)
369{
370 struct s5p_jpeg *jpeg = video_drvdata(file);
371 struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data);
372 int ret;
373
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;
379}
380
381static 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
393
394
395
396static 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
404static 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
420static 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
429static 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
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
476 case RST ... RST + 7:
477 case SOI:
478 case EOI:
479 case TEM:
480 break;
481
482
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
497static int s5p_jpeg_querycap(struct file *file, void *priv,
498 struct v4l2_capability *cap)
499{
500 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
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;
514
515
516
517
518
519 cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M |
520 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT;
521 return 0;
522}
523
524static 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
532 if (num == f->index)
533 break;
534
535
536 ++num;
537 }
538 }
539
540
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
550static int s5p_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
551 struct v4l2_fmtdesc *f)
552{
553 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
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
562static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv,
563 struct v4l2_fmtdesc *f)
564{
565 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
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
574static 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
585static 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;
590 struct s5p_jpeg_ctx *ct = fh_to_ctx(priv);
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
618static 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
643static 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
664static 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
675
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;
696
697 if (fmt->colplanes == 1 &&
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
708static int s5p_jpeg_try_fmt_vid_cap(struct file *file, void *priv,
709 struct v4l2_format *f)
710{
711 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
712 struct s5p_jpeg_fmt *fmt;
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
725static int s5p_jpeg_try_fmt_vid_out(struct file *file, void *priv,
726 struct v4l2_format *f)
727{
728 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
729 struct s5p_jpeg_fmt *fmt;
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
742static 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
771static 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
780 return s5p_jpeg_s_fmt(fh_to_ctx(priv), f);
781}
782
783static 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
792 return s5p_jpeg_s_fmt(fh_to_ctx(priv), f);
793}
794
795static int s5p_jpeg_reqbufs(struct file *file, void *priv,
796 struct v4l2_requestbuffers *reqbufs)
797{
798 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
799
800 return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
801}
802
803static int s5p_jpeg_querybuf(struct file *file, void *priv,
804 struct v4l2_buffer *buf)
805{
806 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
807
808 return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
809}
810
811static int s5p_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
812{
813 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
814
815 return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
816}
817
818static int s5p_jpeg_dqbuf(struct file *file, void *priv,
819 struct v4l2_buffer *buf)
820{
821 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
822
823 return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
824}
825
826static int s5p_jpeg_streamon(struct file *file, void *priv,
827 enum v4l2_buf_type type)
828{
829 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
830
831 return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
832}
833
834static int s5p_jpeg_streamoff(struct file *file, void *priv,
835 enum v4l2_buf_type type)
836{
837 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
838
839 return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
840}
841
842static int s5p_jpeg_g_selection(struct file *file, void *priv,
843 struct v4l2_selection *s)
844{
845 struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
846
847 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
848 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
849 return -EINVAL;
850
851
852 switch (s->target) {
853 case V4L2_SEL_TGT_CROP:
854 case V4L2_SEL_TGT_CROP_BOUNDS:
855 case V4L2_SEL_TGT_CROP_DEFAULT:
856 case V4L2_SEL_TGT_COMPOSE:
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
874
875
876
877
878static int s5p_jpeg_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
879{
880 struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl);
881 struct s5p_jpeg *jpeg = ctx->jpeg;
882 unsigned long flags;
883
884 switch (ctrl->id) {
885 case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
886 spin_lock_irqsave(&jpeg->slock, flags);
887
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 }
896
897 return 0;
898}
899
900static int s5p_jpeg_s_ctrl(struct v4l2_ctrl *ctrl)
901{
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
923static 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
928static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx)
929{
930 unsigned int mask = ~0x27;
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;
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;
953
954 if (ctx->mode == S5P_JPEG_DECODE)
955 ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE |
956 V4L2_CTRL_FLAG_READ_ONLY;
957 return 0;
958}
959
960static 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,
985};
986
987
988
989
990
991
992
993static 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);
1013 jpeg_subsampling_mode(jpeg->regs, ctx->subsampling);
1014 jpeg_dri(jpeg->regs, ctx->restart_interval);
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
1021 jpeg_enc_stream_int(jpeg->regs, ctx->cap_q.size);
1022
1023
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
1036
1037
1038 jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality);
1039 jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality);
1040
1041 jpeg_qtbl(jpeg->regs, 1, 0);
1042
1043 jpeg_qtbl(jpeg->regs, 2, 1);
1044 jpeg_qtbl(jpeg->regs, 3, 1);
1045
1046
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);
1053 } else {
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);
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);
1061 jpeg_jpgadr(jpeg->regs, src_addr);
1062 jpeg_imgadr(jpeg->regs, dst_addr);
1063 }
1064
1065 jpeg_start(jpeg->regs);
1066}
1067
1068static 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
1077static void s5p_jpeg_job_abort(void *priv)
1078{
1079}
1080
1081static 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
1090
1091
1092
1093static 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[])
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
1109
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
1122static 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
1142static 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
1177static 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
1184static 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
1191static 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
1201static 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
1210static 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
1220static 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 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;
1232
1233 ret = vb2_queue_init(src_vq);
1234 if (ret)
1235 return ret;
1236
1237 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1238 dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
1239 dst_vq->drv_priv = ctx;
1240 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1241 dst_vq->ops = &s5p_jpeg_qops;
1242 dst_vq->mem_ops = &vb2_dma_contig_memops;
1243
1244 return vb2_queue_init(dst_vq);
1245}
1246
1247
1248
1249
1250
1251
1252
1253static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id)
1254{
1255 struct s5p_jpeg *jpeg = dev_id;
1256 struct s5p_jpeg_ctx *curr_ctx;
1257 struct vb2_buffer *src_buf, *dst_buf;
1258 unsigned long payload_size = 0;
1259 enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1260 bool enc_jpeg_too_large = false;
1261 bool timer_elapsed = false;
1262 bool op_completed = false;
1263
1264 spin_lock(&jpeg->slock);
1265
1266 curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
1267
1268 src_buf = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx);
1269 dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx);
1270
1271 if (curr_ctx->mode == S5P_JPEG_ENCODE)
1272 enc_jpeg_too_large = jpeg_enc_stream_stat(jpeg->regs);
1273 timer_elapsed = jpeg_timer_stat(jpeg->regs);
1274 op_completed = jpeg_result_stat_ok(jpeg->regs);
1275 if (curr_ctx->mode == S5P_JPEG_DECODE)
1276 op_completed = op_completed && jpeg_stream_stat_ok(jpeg->regs);
1277
1278 if (enc_jpeg_too_large) {
1279 state = VB2_BUF_STATE_ERROR;
1280 jpeg_clear_enc_stream_stat(jpeg->regs);
1281 } else if (timer_elapsed) {
1282 state = VB2_BUF_STATE_ERROR;
1283 jpeg_clear_timer_stat(jpeg->regs);
1284 } else if (!op_completed) {
1285 state = VB2_BUF_STATE_ERROR;
1286 } else {
1287 payload_size = jpeg_compressed_size(jpeg->regs);
1288 }
1289
1290 v4l2_m2m_buf_done(src_buf, state);
1291 if (curr_ctx->mode == S5P_JPEG_ENCODE)
1292 vb2_set_plane_payload(dst_buf, 0, payload_size);
1293 v4l2_m2m_buf_done(dst_buf, state);
1294 v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->m2m_ctx);
1295
1296 curr_ctx->subsampling = jpeg_get_subsampling_mode(jpeg->regs);
1297 spin_unlock(&jpeg->slock);
1298
1299 jpeg_clear_int(jpeg->regs);
1300
1301 return IRQ_HANDLED;
1302}
1303
1304
1305
1306
1307
1308
1309
1310static int s5p_jpeg_probe(struct platform_device *pdev)
1311{
1312 struct s5p_jpeg *jpeg;
1313 struct resource *res;
1314 int ret;
1315
1316
1317 jpeg = devm_kzalloc(&pdev->dev, sizeof(struct s5p_jpeg), GFP_KERNEL);
1318 if (!jpeg)
1319 return -ENOMEM;
1320
1321 mutex_init(&jpeg->lock);
1322 spin_lock_init(&jpeg->slock);
1323 jpeg->dev = &pdev->dev;
1324
1325
1326 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1327
1328 jpeg->regs = devm_ioremap_resource(&pdev->dev, res);
1329 if (IS_ERR(jpeg->regs))
1330 return PTR_ERR(jpeg->regs);
1331
1332
1333 jpeg->irq = ret = platform_get_irq(pdev, 0);
1334 if (ret < 0) {
1335 dev_err(&pdev->dev, "cannot find IRQ\n");
1336 return ret;
1337 }
1338
1339 ret = devm_request_irq(&pdev->dev, jpeg->irq, s5p_jpeg_irq, 0,
1340 dev_name(&pdev->dev), jpeg);
1341 if (ret) {
1342 dev_err(&pdev->dev, "cannot claim IRQ %d\n", jpeg->irq);
1343 return ret;
1344 }
1345
1346
1347 jpeg->clk = clk_get(&pdev->dev, "jpeg");
1348 if (IS_ERR(jpeg->clk)) {
1349 dev_err(&pdev->dev, "cannot get clock\n");
1350 ret = PTR_ERR(jpeg->clk);
1351 return ret;
1352 }
1353 dev_dbg(&pdev->dev, "clock source %p\n", jpeg->clk);
1354 clk_prepare_enable(jpeg->clk);
1355
1356
1357 ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
1358 if (ret) {
1359 dev_err(&pdev->dev, "Failed to register v4l2 device\n");
1360 goto clk_get_rollback;
1361 }
1362
1363
1364 jpeg->m2m_dev = v4l2_m2m_init(&s5p_jpeg_m2m_ops);
1365 if (IS_ERR(jpeg->m2m_dev)) {
1366 v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n");
1367 ret = PTR_ERR(jpeg->m2m_dev);
1368 goto device_register_rollback;
1369 }
1370
1371 jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
1372 if (IS_ERR(jpeg->alloc_ctx)) {
1373 v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n");
1374 ret = PTR_ERR(jpeg->alloc_ctx);
1375 goto m2m_init_rollback;
1376 }
1377
1378
1379 jpeg->vfd_encoder = video_device_alloc();
1380 if (!jpeg->vfd_encoder) {
1381 v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n");
1382 ret = -ENOMEM;
1383 goto vb2_allocator_rollback;
1384 }
1385 strlcpy(jpeg->vfd_encoder->name, S5P_JPEG_M2M_NAME,
1386 sizeof(jpeg->vfd_encoder->name));
1387 jpeg->vfd_encoder->fops = &s5p_jpeg_fops;
1388 jpeg->vfd_encoder->ioctl_ops = &s5p_jpeg_ioctl_ops;
1389 jpeg->vfd_encoder->minor = -1;
1390 jpeg->vfd_encoder->release = video_device_release;
1391 jpeg->vfd_encoder->lock = &jpeg->lock;
1392 jpeg->vfd_encoder->v4l2_dev = &jpeg->v4l2_dev;
1393 jpeg->vfd_encoder->vfl_dir = VFL_DIR_M2M;
1394
1395 ret = video_register_device(jpeg->vfd_encoder, VFL_TYPE_GRABBER, -1);
1396 if (ret) {
1397 v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
1398 goto enc_vdev_alloc_rollback;
1399 }
1400
1401 video_set_drvdata(jpeg->vfd_encoder, jpeg);
1402 v4l2_info(&jpeg->v4l2_dev,
1403 "encoder device registered as /dev/video%d\n",
1404 jpeg->vfd_encoder->num);
1405
1406
1407 jpeg->vfd_decoder = video_device_alloc();
1408 if (!jpeg->vfd_decoder) {
1409 v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n");
1410 ret = -ENOMEM;
1411 goto enc_vdev_register_rollback;
1412 }
1413 strlcpy(jpeg->vfd_decoder->name, S5P_JPEG_M2M_NAME,
1414 sizeof(jpeg->vfd_decoder->name));
1415 jpeg->vfd_decoder->fops = &s5p_jpeg_fops;
1416 jpeg->vfd_decoder->ioctl_ops = &s5p_jpeg_ioctl_ops;
1417 jpeg->vfd_decoder->minor = -1;
1418 jpeg->vfd_decoder->release = video_device_release;
1419 jpeg->vfd_decoder->lock = &jpeg->lock;
1420 jpeg->vfd_decoder->v4l2_dev = &jpeg->v4l2_dev;
1421
1422 ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1);
1423 if (ret) {
1424 v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
1425 goto dec_vdev_alloc_rollback;
1426 }
1427
1428 video_set_drvdata(jpeg->vfd_decoder, jpeg);
1429 v4l2_info(&jpeg->v4l2_dev,
1430 "decoder device registered as /dev/video%d\n",
1431 jpeg->vfd_decoder->num);
1432
1433
1434 platform_set_drvdata(pdev, jpeg);
1435
1436 pm_runtime_enable(&pdev->dev);
1437
1438 v4l2_info(&jpeg->v4l2_dev, "Samsung S5P JPEG codec\n");
1439
1440 return 0;
1441
1442dec_vdev_alloc_rollback:
1443 video_device_release(jpeg->vfd_decoder);
1444
1445enc_vdev_register_rollback:
1446 video_unregister_device(jpeg->vfd_encoder);
1447
1448enc_vdev_alloc_rollback:
1449 video_device_release(jpeg->vfd_encoder);
1450
1451vb2_allocator_rollback:
1452 vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx);
1453
1454m2m_init_rollback:
1455 v4l2_m2m_release(jpeg->m2m_dev);
1456
1457device_register_rollback:
1458 v4l2_device_unregister(&jpeg->v4l2_dev);
1459
1460clk_get_rollback:
1461 clk_disable_unprepare(jpeg->clk);
1462 clk_put(jpeg->clk);
1463
1464 return ret;
1465}
1466
1467static int s5p_jpeg_remove(struct platform_device *pdev)
1468{
1469 struct s5p_jpeg *jpeg = platform_get_drvdata(pdev);
1470
1471 pm_runtime_disable(jpeg->dev);
1472
1473 video_unregister_device(jpeg->vfd_decoder);
1474 video_device_release(jpeg->vfd_decoder);
1475 video_unregister_device(jpeg->vfd_encoder);
1476 video_device_release(jpeg->vfd_encoder);
1477 vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx);
1478 v4l2_m2m_release(jpeg->m2m_dev);
1479 v4l2_device_unregister(&jpeg->v4l2_dev);
1480
1481 clk_disable_unprepare(jpeg->clk);
1482 clk_put(jpeg->clk);
1483
1484 return 0;
1485}
1486
1487static int s5p_jpeg_runtime_suspend(struct device *dev)
1488{
1489 return 0;
1490}
1491
1492static int s5p_jpeg_runtime_resume(struct device *dev)
1493{
1494 struct s5p_jpeg *jpeg = dev_get_drvdata(dev);
1495
1496
1497
1498
1499 jpeg_set_hdctbl(jpeg->regs);
1500 jpeg_set_hdctblg(jpeg->regs);
1501 jpeg_set_hactbl(jpeg->regs);
1502 jpeg_set_hactblg(jpeg->regs);
1503 return 0;
1504}
1505
1506static const struct dev_pm_ops s5p_jpeg_pm_ops = {
1507 .runtime_suspend = s5p_jpeg_runtime_suspend,
1508 .runtime_resume = s5p_jpeg_runtime_resume,
1509};
1510
1511static struct platform_driver s5p_jpeg_driver = {
1512 .probe = s5p_jpeg_probe,
1513 .remove = s5p_jpeg_remove,
1514 .driver = {
1515 .owner = THIS_MODULE,
1516 .name = S5P_JPEG_M2M_NAME,
1517 .pm = &s5p_jpeg_pm_ops,
1518 },
1519};
1520
1521module_platform_driver(s5p_jpeg_driver);
1522
1523MODULE_AUTHOR("Andrzej Pietrasiewicz <andrzej.p@samsung.com>");
1524MODULE_DESCRIPTION("Samsung JPEG codec driver");
1525MODULE_LICENSE("GPL");
1526
1527
