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[media] coda: fix bitstream preloading for MPEG4 decoding
[deliverable/linux.git] / drivers / media / platform / coda / coda-common.c
1 /*
2 * Coda multi-standard codec IP
3 *
4 * Copyright (C) 2012 Vista Silicon S.L.
5 * Javier Martin, <javier.martin@vista-silicon.com>
6 * Xavier Duret
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 as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14 #include <linux/clk.h>
15 #include <linux/debugfs.h>
16 #include <linux/delay.h>
17 #include <linux/firmware.h>
18 #include <linux/genalloc.h>
19 #include <linux/interrupt.h>
20 #include <linux/io.h>
21 #include <linux/irq.h>
22 #include <linux/kfifo.h>
23 #include <linux/module.h>
24 #include <linux/of_device.h>
25 #include <linux/platform_device.h>
26 #include <linux/pm_runtime.h>
27 #include <linux/slab.h>
28 #include <linux/videodev2.h>
29 #include <linux/of.h>
30 #include <linux/platform_data/coda.h>
31 #include <linux/reset.h>
32
33 #include <media/v4l2-ctrls.h>
34 #include <media/v4l2-device.h>
35 #include <media/v4l2-event.h>
36 #include <media/v4l2-ioctl.h>
37 #include <media/v4l2-mem2mem.h>
38 #include <media/videobuf2-core.h>
39 #include <media/videobuf2-dma-contig.h>
40 #include <media/videobuf2-vmalloc.h>
41
42 #include "coda.h"
43
44 #define CODA_NAME "coda"
45
46 #define CODADX6_MAX_INSTANCES 4
47 #define CODA_MAX_FORMATS 4
48
49 #define CODA_ISRAM_SIZE (2048 * 2)
50
51 #define MIN_W 176
52 #define MIN_H 144
53
54 #define S_ALIGN 1 /* multiple of 2 */
55 #define W_ALIGN 1 /* multiple of 2 */
56 #define H_ALIGN 1 /* multiple of 2 */
57
58 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
59
60 int coda_debug;
61 module_param(coda_debug, int, 0644);
62 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
63
64 struct coda_fmt {
65 char *name;
66 u32 fourcc;
67 };
68
69 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
70 {
71 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
72 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
73 writel(data, dev->regs_base + reg);
74 }
75
76 unsigned int coda_read(struct coda_dev *dev, u32 reg)
77 {
78 u32 data;
79
80 data = readl(dev->regs_base + reg);
81 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
82 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
83 return data;
84 }
85
86 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
87 struct vb2_buffer *buf, unsigned int reg_y)
88 {
89 u32 base_y = vb2_dma_contig_plane_dma_addr(buf, 0);
90 u32 base_cb, base_cr;
91
92 switch (q_data->fourcc) {
93 case V4L2_PIX_FMT_YVU420:
94 /* Switch Cb and Cr for YVU420 format */
95 base_cr = base_y + q_data->bytesperline * q_data->height;
96 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
97 break;
98 case V4L2_PIX_FMT_YUV420:
99 case V4L2_PIX_FMT_NV12:
100 default:
101 base_cb = base_y + q_data->bytesperline * q_data->height;
102 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
103 break;
104 case V4L2_PIX_FMT_YUV422P:
105 base_cb = base_y + q_data->bytesperline * q_data->height;
106 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
107 }
108
109 coda_write(ctx->dev, base_y, reg_y);
110 coda_write(ctx->dev, base_cb, reg_y + 4);
111 coda_write(ctx->dev, base_cr, reg_y + 8);
112 }
113
114 /*
115 * Array of all formats supported by any version of Coda:
116 */
117 static const struct coda_fmt coda_formats[] = {
118 {
119 .name = "YUV 4:2:0 Planar, YCbCr",
120 .fourcc = V4L2_PIX_FMT_YUV420,
121 },
122 {
123 .name = "YUV 4:2:0 Planar, YCrCb",
124 .fourcc = V4L2_PIX_FMT_YVU420,
125 },
126 {
127 .name = "YUV 4:2:0 Partial interleaved Y/CbCr",
128 .fourcc = V4L2_PIX_FMT_NV12,
129 },
130 {
131 .name = "YUV 4:2:2 Planar, YCbCr",
132 .fourcc = V4L2_PIX_FMT_YUV422P,
133 },
134 {
135 .name = "H264 Encoded Stream",
136 .fourcc = V4L2_PIX_FMT_H264,
137 },
138 {
139 .name = "MPEG4 Encoded Stream",
140 .fourcc = V4L2_PIX_FMT_MPEG4,
141 },
142 {
143 .name = "JPEG Encoded Images",
144 .fourcc = V4L2_PIX_FMT_JPEG,
145 },
146 };
147
148 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
149 { mode, src_fourcc, dst_fourcc, max_w, max_h }
150
151 /*
152 * Arrays of codecs supported by each given version of Coda:
153 * i.MX27 -> codadx6
154 * i.MX5x -> coda7
155 * i.MX6 -> coda960
156 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
157 */
158 static const struct coda_codec codadx6_codecs[] = {
159 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
160 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
161 };
162
163 static const struct coda_codec coda7_codecs[] = {
164 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
165 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
166 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
167 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
168 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
169 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
170 };
171
172 static const struct coda_codec coda9_codecs[] = {
173 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
174 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
175 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
176 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
177 };
178
179 struct coda_video_device {
180 const char *name;
181 enum coda_inst_type type;
182 const struct coda_context_ops *ops;
183 bool direct;
184 u32 src_formats[CODA_MAX_FORMATS];
185 u32 dst_formats[CODA_MAX_FORMATS];
186 };
187
188 static const struct coda_video_device coda_bit_encoder = {
189 .name = "coda-encoder",
190 .type = CODA_INST_ENCODER,
191 .ops = &coda_bit_encode_ops,
192 .src_formats = {
193 V4L2_PIX_FMT_YUV420,
194 V4L2_PIX_FMT_YVU420,
195 V4L2_PIX_FMT_NV12,
196 },
197 .dst_formats = {
198 V4L2_PIX_FMT_H264,
199 V4L2_PIX_FMT_MPEG4,
200 },
201 };
202
203 static const struct coda_video_device coda_bit_jpeg_encoder = {
204 .name = "coda-jpeg-encoder",
205 .type = CODA_INST_ENCODER,
206 .ops = &coda_bit_encode_ops,
207 .src_formats = {
208 V4L2_PIX_FMT_YUV420,
209 V4L2_PIX_FMT_YVU420,
210 V4L2_PIX_FMT_NV12,
211 V4L2_PIX_FMT_YUV422P,
212 },
213 .dst_formats = {
214 V4L2_PIX_FMT_JPEG,
215 },
216 };
217
218 static const struct coda_video_device coda_bit_decoder = {
219 .name = "coda-decoder",
220 .type = CODA_INST_DECODER,
221 .ops = &coda_bit_decode_ops,
222 .src_formats = {
223 V4L2_PIX_FMT_H264,
224 V4L2_PIX_FMT_MPEG4,
225 },
226 .dst_formats = {
227 V4L2_PIX_FMT_YUV420,
228 V4L2_PIX_FMT_YVU420,
229 V4L2_PIX_FMT_NV12,
230 },
231 };
232
233 static const struct coda_video_device coda_bit_jpeg_decoder = {
234 .name = "coda-jpeg-decoder",
235 .type = CODA_INST_DECODER,
236 .ops = &coda_bit_decode_ops,
237 .src_formats = {
238 V4L2_PIX_FMT_JPEG,
239 },
240 .dst_formats = {
241 V4L2_PIX_FMT_YUV420,
242 V4L2_PIX_FMT_YVU420,
243 V4L2_PIX_FMT_NV12,
244 V4L2_PIX_FMT_YUV422P,
245 },
246 };
247
248 static const struct coda_video_device *codadx6_video_devices[] = {
249 &coda_bit_encoder,
250 };
251
252 static const struct coda_video_device *coda7_video_devices[] = {
253 &coda_bit_jpeg_encoder,
254 &coda_bit_jpeg_decoder,
255 &coda_bit_encoder,
256 &coda_bit_decoder,
257 };
258
259 static const struct coda_video_device *coda9_video_devices[] = {
260 &coda_bit_encoder,
261 &coda_bit_decoder,
262 };
263
264 static bool coda_format_is_yuv(u32 fourcc)
265 {
266 switch (fourcc) {
267 case V4L2_PIX_FMT_YUV420:
268 case V4L2_PIX_FMT_YVU420:
269 case V4L2_PIX_FMT_NV12:
270 case V4L2_PIX_FMT_YUV422P:
271 return true;
272 default:
273 return false;
274 }
275 }
276
277 static const char *coda_format_name(u32 fourcc)
278 {
279 int i;
280
281 for (i = 0; i < ARRAY_SIZE(coda_formats); i++) {
282 if (coda_formats[i].fourcc == fourcc)
283 return coda_formats[i].name;
284 }
285
286 return NULL;
287 }
288
289 /*
290 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
291 * tables.
292 */
293 static u32 coda_format_normalize_yuv(u32 fourcc)
294 {
295 return coda_format_is_yuv(fourcc) ? V4L2_PIX_FMT_YUV420 : fourcc;
296 }
297
298 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
299 int src_fourcc, int dst_fourcc)
300 {
301 const struct coda_codec *codecs = dev->devtype->codecs;
302 int num_codecs = dev->devtype->num_codecs;
303 int k;
304
305 src_fourcc = coda_format_normalize_yuv(src_fourcc);
306 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
307 if (src_fourcc == dst_fourcc)
308 return NULL;
309
310 for (k = 0; k < num_codecs; k++) {
311 if (codecs[k].src_fourcc == src_fourcc &&
312 codecs[k].dst_fourcc == dst_fourcc)
313 break;
314 }
315
316 if (k == num_codecs)
317 return NULL;
318
319 return &codecs[k];
320 }
321
322 static void coda_get_max_dimensions(struct coda_dev *dev,
323 const struct coda_codec *codec,
324 int *max_w, int *max_h)
325 {
326 const struct coda_codec *codecs = dev->devtype->codecs;
327 int num_codecs = dev->devtype->num_codecs;
328 unsigned int w, h;
329 int k;
330
331 if (codec) {
332 w = codec->max_w;
333 h = codec->max_h;
334 } else {
335 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
336 w = max(w, codecs[k].max_w);
337 h = max(h, codecs[k].max_h);
338 }
339 }
340
341 if (max_w)
342 *max_w = w;
343 if (max_h)
344 *max_h = h;
345 }
346
347 const struct coda_video_device *to_coda_video_device(struct video_device *vdev)
348 {
349 struct coda_dev *dev = video_get_drvdata(vdev);
350 unsigned int i = vdev - dev->vfd;
351
352 if (i >= dev->devtype->num_vdevs)
353 return NULL;
354
355 return dev->devtype->vdevs[i];
356 }
357
358 const char *coda_product_name(int product)
359 {
360 static char buf[9];
361
362 switch (product) {
363 case CODA_DX6:
364 return "CodaDx6";
365 case CODA_7541:
366 return "CODA7541";
367 case CODA_960:
368 return "CODA960";
369 default:
370 snprintf(buf, sizeof(buf), "(0x%04x)", product);
371 return buf;
372 }
373 }
374
375 /*
376 * V4L2 ioctl() operations.
377 */
378 static int coda_querycap(struct file *file, void *priv,
379 struct v4l2_capability *cap)
380 {
381 struct coda_ctx *ctx = fh_to_ctx(priv);
382
383 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
384 strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
385 sizeof(cap->card));
386 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
387 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
388 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
389
390 return 0;
391 }
392
393 static int coda_enum_fmt(struct file *file, void *priv,
394 struct v4l2_fmtdesc *f)
395 {
396 struct video_device *vdev = video_devdata(file);
397 const struct coda_video_device *cvd = to_coda_video_device(vdev);
398 const u32 *formats;
399 const char *name;
400
401 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
402 formats = cvd->src_formats;
403 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
404 formats = cvd->dst_formats;
405 else
406 return -EINVAL;
407
408 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
409 return -EINVAL;
410
411 name = coda_format_name(formats[f->index]);
412 strlcpy(f->description, name, sizeof(f->description));
413 f->pixelformat = formats[f->index];
414 if (!coda_format_is_yuv(formats[f->index]))
415 f->flags |= V4L2_FMT_FLAG_COMPRESSED;
416
417 return 0;
418 }
419
420 static int coda_g_fmt(struct file *file, void *priv,
421 struct v4l2_format *f)
422 {
423 struct coda_q_data *q_data;
424 struct coda_ctx *ctx = fh_to_ctx(priv);
425
426 q_data = get_q_data(ctx, f->type);
427 if (!q_data)
428 return -EINVAL;
429
430 f->fmt.pix.field = V4L2_FIELD_NONE;
431 f->fmt.pix.pixelformat = q_data->fourcc;
432 f->fmt.pix.width = q_data->width;
433 f->fmt.pix.height = q_data->height;
434 f->fmt.pix.bytesperline = q_data->bytesperline;
435
436 f->fmt.pix.sizeimage = q_data->sizeimage;
437 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG)
438 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
439 else
440 f->fmt.pix.colorspace = ctx->colorspace;
441
442 return 0;
443 }
444
445 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
446 {
447 struct coda_q_data *q_data;
448 const u32 *formats;
449 int i;
450
451 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
452 formats = ctx->cvd->src_formats;
453 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
454 formats = ctx->cvd->dst_formats;
455 else
456 return -EINVAL;
457
458 for (i = 0; i < CODA_MAX_FORMATS; i++) {
459 if (formats[i] == f->fmt.pix.pixelformat) {
460 f->fmt.pix.pixelformat = formats[i];
461 return 0;
462 }
463 }
464
465 /* Fall back to currently set pixelformat */
466 q_data = get_q_data(ctx, f->type);
467 f->fmt.pix.pixelformat = q_data->fourcc;
468
469 return 0;
470 }
471
472 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
473 u32 width, u32 height)
474 {
475 /*
476 * This is a rough estimate for sensible compressed buffer
477 * sizes (between 1 and 16 bits per pixel). This could be
478 * improved by better format specific worst case estimates.
479 */
480 return round_up(clamp(sizeimage, width * height / 8,
481 width * height * 2), PAGE_SIZE);
482 }
483
484 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
485 struct v4l2_format *f)
486 {
487 struct coda_dev *dev = ctx->dev;
488 unsigned int max_w, max_h;
489 enum v4l2_field field;
490
491 field = f->fmt.pix.field;
492 if (field == V4L2_FIELD_ANY)
493 field = V4L2_FIELD_NONE;
494 else if (V4L2_FIELD_NONE != field)
495 return -EINVAL;
496
497 /* V4L2 specification suggests the driver corrects the format struct
498 * if any of the dimensions is unsupported */
499 f->fmt.pix.field = field;
500
501 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
502 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
503 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
504 S_ALIGN);
505
506 switch (f->fmt.pix.pixelformat) {
507 case V4L2_PIX_FMT_YUV420:
508 case V4L2_PIX_FMT_YVU420:
509 case V4L2_PIX_FMT_NV12:
510 /*
511 * Frame stride must be at least multiple of 8,
512 * but multiple of 16 for h.264 or JPEG 4:2:x
513 */
514 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
515 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
516 f->fmt.pix.height * 3 / 2;
517 break;
518 case V4L2_PIX_FMT_YUV422P:
519 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
520 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
521 f->fmt.pix.height * 2;
522 break;
523 case V4L2_PIX_FMT_JPEG:
524 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
525 /* fallthrough */
526 case V4L2_PIX_FMT_H264:
527 case V4L2_PIX_FMT_MPEG4:
528 f->fmt.pix.bytesperline = 0;
529 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
530 f->fmt.pix.sizeimage,
531 f->fmt.pix.width,
532 f->fmt.pix.height);
533 break;
534 default:
535 BUG();
536 }
537
538 return 0;
539 }
540
541 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
542 struct v4l2_format *f)
543 {
544 struct coda_ctx *ctx = fh_to_ctx(priv);
545 const struct coda_q_data *q_data_src;
546 const struct coda_codec *codec;
547 struct vb2_queue *src_vq;
548 int ret;
549
550 ret = coda_try_pixelformat(ctx, f);
551 if (ret < 0)
552 return ret;
553
554 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
555
556 /*
557 * If the source format is already fixed, only allow the same output
558 * resolution
559 */
560 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
561 if (vb2_is_streaming(src_vq)) {
562 f->fmt.pix.width = q_data_src->width;
563 f->fmt.pix.height = q_data_src->height;
564 }
565
566 f->fmt.pix.colorspace = ctx->colorspace;
567
568 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
569 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
570 f->fmt.pix.pixelformat);
571 if (!codec)
572 return -EINVAL;
573
574 ret = coda_try_fmt(ctx, codec, f);
575 if (ret < 0)
576 return ret;
577
578 /* The h.264 decoder only returns complete 16x16 macroblocks */
579 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
580 f->fmt.pix.width = f->fmt.pix.width;
581 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
582 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
583 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
584 f->fmt.pix.height * 3 / 2;
585 }
586
587 return 0;
588 }
589
590 static int coda_try_fmt_vid_out(struct file *file, void *priv,
591 struct v4l2_format *f)
592 {
593 struct coda_ctx *ctx = fh_to_ctx(priv);
594 struct coda_dev *dev = ctx->dev;
595 const struct coda_q_data *q_data_dst;
596 const struct coda_codec *codec;
597 int ret;
598
599 ret = coda_try_pixelformat(ctx, f);
600 if (ret < 0)
601 return ret;
602
603 switch (f->fmt.pix.colorspace) {
604 case V4L2_COLORSPACE_REC709:
605 case V4L2_COLORSPACE_JPEG:
606 break;
607 default:
608 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG)
609 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
610 else
611 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
612 }
613
614 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
615 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
616
617 return coda_try_fmt(ctx, codec, f);
618 }
619
620 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
621 {
622 struct coda_q_data *q_data;
623 struct vb2_queue *vq;
624
625 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
626 if (!vq)
627 return -EINVAL;
628
629 q_data = get_q_data(ctx, f->type);
630 if (!q_data)
631 return -EINVAL;
632
633 if (vb2_is_busy(vq)) {
634 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
635 return -EBUSY;
636 }
637
638 q_data->fourcc = f->fmt.pix.pixelformat;
639 q_data->width = f->fmt.pix.width;
640 q_data->height = f->fmt.pix.height;
641 q_data->bytesperline = f->fmt.pix.bytesperline;
642 q_data->sizeimage = f->fmt.pix.sizeimage;
643 q_data->rect.left = 0;
644 q_data->rect.top = 0;
645 q_data->rect.width = f->fmt.pix.width;
646 q_data->rect.height = f->fmt.pix.height;
647
648 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
649 "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
650 f->type, q_data->width, q_data->height, q_data->fourcc);
651
652 return 0;
653 }
654
655 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
656 struct v4l2_format *f)
657 {
658 struct coda_ctx *ctx = fh_to_ctx(priv);
659 int ret;
660
661 ret = coda_try_fmt_vid_cap(file, priv, f);
662 if (ret)
663 return ret;
664
665 return coda_s_fmt(ctx, f);
666 }
667
668 static int coda_s_fmt_vid_out(struct file *file, void *priv,
669 struct v4l2_format *f)
670 {
671 struct coda_ctx *ctx = fh_to_ctx(priv);
672 struct v4l2_format f_cap;
673 int ret;
674
675 ret = coda_try_fmt_vid_out(file, priv, f);
676 if (ret)
677 return ret;
678
679 ret = coda_s_fmt(ctx, f);
680 if (ret)
681 return ret;
682
683 ctx->colorspace = f->fmt.pix.colorspace;
684
685 memset(&f_cap, 0, sizeof(f_cap));
686 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
687 coda_g_fmt(file, priv, &f_cap);
688 f_cap.fmt.pix.width = f->fmt.pix.width;
689 f_cap.fmt.pix.height = f->fmt.pix.height;
690
691 ret = coda_try_fmt_vid_cap(file, priv, &f_cap);
692 if (ret)
693 return ret;
694
695 return coda_s_fmt(ctx, &f_cap);
696 }
697
698 static int coda_reqbufs(struct file *file, void *priv,
699 struct v4l2_requestbuffers *rb)
700 {
701 struct coda_ctx *ctx = fh_to_ctx(priv);
702 int ret;
703
704 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
705 if (ret)
706 return ret;
707
708 /*
709 * Allow to allocate instance specific per-context buffers, such as
710 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
711 */
712 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
713 return ctx->ops->reqbufs(ctx, rb);
714
715 return 0;
716 }
717
718 static int coda_qbuf(struct file *file, void *priv,
719 struct v4l2_buffer *buf)
720 {
721 struct coda_ctx *ctx = fh_to_ctx(priv);
722
723 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
724 }
725
726 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
727 struct vb2_buffer *buf)
728 {
729 struct vb2_queue *src_vq;
730
731 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
732
733 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
734 (buf->v4l2_buf.sequence == (ctx->qsequence - 1)));
735 }
736
737 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_buffer *buf,
738 enum vb2_buffer_state state)
739 {
740 const struct v4l2_event eos_event = {
741 .type = V4L2_EVENT_EOS
742 };
743
744 if (coda_buf_is_end_of_stream(ctx, buf)) {
745 buf->v4l2_buf.flags |= V4L2_BUF_FLAG_LAST;
746
747 v4l2_event_queue_fh(&ctx->fh, &eos_event);
748 }
749
750 v4l2_m2m_buf_done(buf, state);
751 }
752
753 static int coda_g_selection(struct file *file, void *fh,
754 struct v4l2_selection *s)
755 {
756 struct coda_ctx *ctx = fh_to_ctx(fh);
757 struct coda_q_data *q_data;
758 struct v4l2_rect r, *rsel;
759
760 q_data = get_q_data(ctx, s->type);
761 if (!q_data)
762 return -EINVAL;
763
764 r.left = 0;
765 r.top = 0;
766 r.width = q_data->width;
767 r.height = q_data->height;
768 rsel = &q_data->rect;
769
770 switch (s->target) {
771 case V4L2_SEL_TGT_CROP_DEFAULT:
772 case V4L2_SEL_TGT_CROP_BOUNDS:
773 rsel = &r;
774 /* fallthrough */
775 case V4L2_SEL_TGT_CROP:
776 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
777 return -EINVAL;
778 break;
779 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
780 case V4L2_SEL_TGT_COMPOSE_PADDED:
781 rsel = &r;
782 /* fallthrough */
783 case V4L2_SEL_TGT_COMPOSE:
784 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
785 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
786 return -EINVAL;
787 break;
788 default:
789 return -EINVAL;
790 }
791
792 s->r = *rsel;
793
794 return 0;
795 }
796
797 static int coda_try_decoder_cmd(struct file *file, void *fh,
798 struct v4l2_decoder_cmd *dc)
799 {
800 if (dc->cmd != V4L2_DEC_CMD_STOP)
801 return -EINVAL;
802
803 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
804 return -EINVAL;
805
806 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
807 return -EINVAL;
808
809 return 0;
810 }
811
812 static int coda_decoder_cmd(struct file *file, void *fh,
813 struct v4l2_decoder_cmd *dc)
814 {
815 struct coda_ctx *ctx = fh_to_ctx(fh);
816 int ret;
817
818 ret = coda_try_decoder_cmd(file, fh, dc);
819 if (ret < 0)
820 return ret;
821
822 /* Ignore decoder stop command silently in encoder context */
823 if (ctx->inst_type != CODA_INST_DECODER)
824 return 0;
825
826 /* Set the stream-end flag on this context */
827 coda_bit_stream_end_flag(ctx);
828 ctx->hold = false;
829 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
830
831 return 0;
832 }
833
834 static int coda_subscribe_event(struct v4l2_fh *fh,
835 const struct v4l2_event_subscription *sub)
836 {
837 switch (sub->type) {
838 case V4L2_EVENT_EOS:
839 return v4l2_event_subscribe(fh, sub, 0, NULL);
840 default:
841 return v4l2_ctrl_subscribe_event(fh, sub);
842 }
843 }
844
845 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
846 .vidioc_querycap = coda_querycap,
847
848 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
849 .vidioc_g_fmt_vid_cap = coda_g_fmt,
850 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
851 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
852
853 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
854 .vidioc_g_fmt_vid_out = coda_g_fmt,
855 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
856 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
857
858 .vidioc_reqbufs = coda_reqbufs,
859 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
860
861 .vidioc_qbuf = coda_qbuf,
862 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
863 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
864 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
865
866 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
867 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
868
869 .vidioc_g_selection = coda_g_selection,
870
871 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
872 .vidioc_decoder_cmd = coda_decoder_cmd,
873
874 .vidioc_subscribe_event = coda_subscribe_event,
875 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
876 };
877
878 void coda_set_gdi_regs(struct coda_ctx *ctx)
879 {
880 struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
881 struct coda_dev *dev = ctx->dev;
882 int i;
883
884 for (i = 0; i < 16; i++)
885 coda_write(dev, tiled_map->xy2ca_map[i],
886 CODA9_GDI_XY2_CAS_0 + 4 * i);
887 for (i = 0; i < 4; i++)
888 coda_write(dev, tiled_map->xy2ba_map[i],
889 CODA9_GDI_XY2_BA_0 + 4 * i);
890 for (i = 0; i < 16; i++)
891 coda_write(dev, tiled_map->xy2ra_map[i],
892 CODA9_GDI_XY2_RAS_0 + 4 * i);
893 coda_write(dev, tiled_map->xy2rbc_config, CODA9_GDI_XY2_RBC_CONFIG);
894 for (i = 0; i < 32; i++)
895 coda_write(dev, tiled_map->rbc2axi_map[i],
896 CODA9_GDI_RBC2_AXI_0 + 4 * i);
897 }
898
899 /*
900 * Mem-to-mem operations.
901 */
902
903 static void coda_device_run(void *m2m_priv)
904 {
905 struct coda_ctx *ctx = m2m_priv;
906 struct coda_dev *dev = ctx->dev;
907
908 queue_work(dev->workqueue, &ctx->pic_run_work);
909 }
910
911 static void coda_pic_run_work(struct work_struct *work)
912 {
913 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
914 struct coda_dev *dev = ctx->dev;
915 int ret;
916
917 mutex_lock(&ctx->buffer_mutex);
918 mutex_lock(&dev->coda_mutex);
919
920 ret = ctx->ops->prepare_run(ctx);
921 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
922 mutex_unlock(&dev->coda_mutex);
923 mutex_unlock(&ctx->buffer_mutex);
924 /* job_finish scheduled by prepare_decode */
925 return;
926 }
927
928 if (!wait_for_completion_timeout(&ctx->completion,
929 msecs_to_jiffies(1000))) {
930 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
931
932 ctx->hold = true;
933
934 coda_hw_reset(ctx);
935 } else if (!ctx->aborting) {
936 ctx->ops->finish_run(ctx);
937 }
938
939 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
940 ctx->ops->seq_end_work)
941 queue_work(dev->workqueue, &ctx->seq_end_work);
942
943 mutex_unlock(&dev->coda_mutex);
944 mutex_unlock(&ctx->buffer_mutex);
945
946 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
947 }
948
949 static int coda_job_ready(void *m2m_priv)
950 {
951 struct coda_ctx *ctx = m2m_priv;
952
953 /*
954 * For both 'P' and 'key' frame cases 1 picture
955 * and 1 frame are needed. In the decoder case,
956 * the compressed frame can be in the bitstream.
957 */
958 if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
959 ctx->inst_type != CODA_INST_DECODER) {
960 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
961 "not ready: not enough video buffers.\n");
962 return 0;
963 }
964
965 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
966 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
967 "not ready: not enough video capture buffers.\n");
968 return 0;
969 }
970
971 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
972 struct list_head *meta;
973 bool stream_end;
974 int num_metas;
975 int src_bufs;
976
977 if (ctx->hold && !v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx)) {
978 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
979 "%d: not ready: on hold for more buffers.\n",
980 ctx->idx);
981 return 0;
982 }
983
984 stream_end = ctx->bit_stream_param &
985 CODA_BIT_STREAM_END_FLAG;
986
987 num_metas = 0;
988 list_for_each(meta, &ctx->buffer_meta_list)
989 num_metas++;
990
991 src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
992
993 if (!stream_end && (num_metas + src_bufs) < 2) {
994 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
995 "%d: not ready: need 2 buffers available (%d, %d)\n",
996 ctx->idx, num_metas, src_bufs);
997 return 0;
998 }
999
1000
1001 if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
1002 !stream_end && (coda_get_bitstream_payload(ctx) < 512)) {
1003 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1004 "%d: not ready: not enough bitstream data (%d).\n",
1005 ctx->idx, coda_get_bitstream_payload(ctx));
1006 return 0;
1007 }
1008 }
1009
1010 if (ctx->aborting) {
1011 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1012 "not ready: aborting\n");
1013 return 0;
1014 }
1015
1016 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1017 "job ready\n");
1018 return 1;
1019 }
1020
1021 static void coda_job_abort(void *priv)
1022 {
1023 struct coda_ctx *ctx = priv;
1024
1025 ctx->aborting = 1;
1026
1027 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1028 "Aborting task\n");
1029 }
1030
1031 static void coda_lock(void *m2m_priv)
1032 {
1033 struct coda_ctx *ctx = m2m_priv;
1034 struct coda_dev *pcdev = ctx->dev;
1035
1036 mutex_lock(&pcdev->dev_mutex);
1037 }
1038
1039 static void coda_unlock(void *m2m_priv)
1040 {
1041 struct coda_ctx *ctx = m2m_priv;
1042 struct coda_dev *pcdev = ctx->dev;
1043
1044 mutex_unlock(&pcdev->dev_mutex);
1045 }
1046
1047 static const struct v4l2_m2m_ops coda_m2m_ops = {
1048 .device_run = coda_device_run,
1049 .job_ready = coda_job_ready,
1050 .job_abort = coda_job_abort,
1051 .lock = coda_lock,
1052 .unlock = coda_unlock,
1053 };
1054
1055 static void coda_set_tiled_map_type(struct coda_ctx *ctx, int tiled_map_type)
1056 {
1057 struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
1058 int luma_map, chro_map, i;
1059
1060 memset(tiled_map, 0, sizeof(*tiled_map));
1061
1062 luma_map = 64;
1063 chro_map = 64;
1064 tiled_map->map_type = tiled_map_type;
1065 for (i = 0; i < 16; i++)
1066 tiled_map->xy2ca_map[i] = luma_map << 8 | chro_map;
1067 for (i = 0; i < 4; i++)
1068 tiled_map->xy2ba_map[i] = luma_map << 8 | chro_map;
1069 for (i = 0; i < 16; i++)
1070 tiled_map->xy2ra_map[i] = luma_map << 8 | chro_map;
1071
1072 if (tiled_map_type == GDI_LINEAR_FRAME_MAP) {
1073 tiled_map->xy2rbc_config = 0;
1074 } else {
1075 dev_err(&ctx->dev->plat_dev->dev, "invalid map type: %d\n",
1076 tiled_map_type);
1077 return;
1078 }
1079 }
1080
1081 static void set_default_params(struct coda_ctx *ctx)
1082 {
1083 unsigned int max_w, max_h, usize, csize;
1084
1085 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1086 ctx->cvd->dst_formats[0]);
1087 max_w = min(ctx->codec->max_w, 1920U);
1088 max_h = min(ctx->codec->max_h, 1088U);
1089 usize = max_w * max_h * 3 / 2;
1090 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1091
1092 ctx->params.codec_mode = ctx->codec->mode;
1093 ctx->colorspace = V4L2_COLORSPACE_REC709;
1094 ctx->params.framerate = 30;
1095
1096 /* Default formats for output and input queues */
1097 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
1098 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
1099 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1100 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1101 ctx->q_data[V4L2_M2M_DST].width = max_w;
1102 ctx->q_data[V4L2_M2M_DST].height = max_h;
1103 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1104 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1105 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1106 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1107 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1108 } else {
1109 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1110 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1111 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1112 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1113 }
1114 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1115 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1116 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1117 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1118
1119 if (ctx->dev->devtype->product == CODA_960)
1120 coda_set_tiled_map_type(ctx, GDI_LINEAR_FRAME_MAP);
1121 }
1122
1123 /*
1124 * Queue operations
1125 */
1126 static int coda_queue_setup(struct vb2_queue *vq,
1127 const struct v4l2_format *fmt,
1128 unsigned int *nbuffers, unsigned int *nplanes,
1129 unsigned int sizes[], void *alloc_ctxs[])
1130 {
1131 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1132 struct coda_q_data *q_data;
1133 unsigned int size;
1134
1135 q_data = get_q_data(ctx, vq->type);
1136 size = q_data->sizeimage;
1137
1138 *nplanes = 1;
1139 sizes[0] = size;
1140
1141 /* Set to vb2-dma-contig allocator context, ignored by vb2-vmalloc */
1142 alloc_ctxs[0] = ctx->dev->alloc_ctx;
1143
1144 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1145 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1146
1147 return 0;
1148 }
1149
1150 static int coda_buf_prepare(struct vb2_buffer *vb)
1151 {
1152 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1153 struct coda_q_data *q_data;
1154
1155 q_data = get_q_data(ctx, vb->vb2_queue->type);
1156
1157 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1158 v4l2_warn(&ctx->dev->v4l2_dev,
1159 "%s data will not fit into plane (%lu < %lu)\n",
1160 __func__, vb2_plane_size(vb, 0),
1161 (long)q_data->sizeimage);
1162 return -EINVAL;
1163 }
1164
1165 return 0;
1166 }
1167
1168 static void coda_buf_queue(struct vb2_buffer *vb)
1169 {
1170 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1171 struct vb2_queue *vq = vb->vb2_queue;
1172 struct coda_q_data *q_data;
1173
1174 q_data = get_q_data(ctx, vb->vb2_queue->type);
1175
1176 /*
1177 * In the decoder case, immediately try to copy the buffer into the
1178 * bitstream ringbuffer and mark it as ready to be dequeued.
1179 */
1180 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1181 /*
1182 * For backwards compatibility, queuing an empty buffer marks
1183 * the stream end
1184 */
1185 if (vb2_get_plane_payload(vb, 0) == 0)
1186 coda_bit_stream_end_flag(ctx);
1187 mutex_lock(&ctx->bitstream_mutex);
1188 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
1189 if (vb2_is_streaming(vb->vb2_queue))
1190 coda_fill_bitstream(ctx, true);
1191 mutex_unlock(&ctx->bitstream_mutex);
1192 } else {
1193 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
1194 }
1195 }
1196
1197 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1198 size_t size, const char *name, struct dentry *parent)
1199 {
1200 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1201 GFP_KERNEL);
1202 if (!buf->vaddr) {
1203 v4l2_err(&dev->v4l2_dev,
1204 "Failed to allocate %s buffer of size %u\n",
1205 name, size);
1206 return -ENOMEM;
1207 }
1208
1209 buf->size = size;
1210
1211 if (name && parent) {
1212 buf->blob.data = buf->vaddr;
1213 buf->blob.size = size;
1214 buf->dentry = debugfs_create_blob(name, 0644, parent,
1215 &buf->blob);
1216 if (!buf->dentry)
1217 dev_warn(&dev->plat_dev->dev,
1218 "failed to create debugfs entry %s\n", name);
1219 }
1220
1221 return 0;
1222 }
1223
1224 void coda_free_aux_buf(struct coda_dev *dev,
1225 struct coda_aux_buf *buf)
1226 {
1227 if (buf->vaddr) {
1228 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1229 buf->vaddr, buf->paddr);
1230 buf->vaddr = NULL;
1231 buf->size = 0;
1232 debugfs_remove(buf->dentry);
1233 buf->dentry = NULL;
1234 }
1235 }
1236
1237 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1238 {
1239 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1240 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1241 struct coda_q_data *q_data_src, *q_data_dst;
1242 struct vb2_buffer *buf;
1243 int ret = 0;
1244
1245 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1246 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1247 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1248 /* copy the buffers that were queued before streamon */
1249 mutex_lock(&ctx->bitstream_mutex);
1250 coda_fill_bitstream(ctx, false);
1251 mutex_unlock(&ctx->bitstream_mutex);
1252
1253 if (coda_get_bitstream_payload(ctx) < 512) {
1254 ret = -EINVAL;
1255 goto err;
1256 }
1257 } else {
1258 if (count < 1) {
1259 ret = -EINVAL;
1260 goto err;
1261 }
1262 }
1263
1264 ctx->streamon_out = 1;
1265 } else {
1266 if (count < 1) {
1267 ret = -EINVAL;
1268 goto err;
1269 }
1270
1271 ctx->streamon_cap = 1;
1272 }
1273
1274 /* Don't start the coda unless both queues are on */
1275 if (!(ctx->streamon_out & ctx->streamon_cap))
1276 return 0;
1277
1278 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1279 if ((q_data_src->width != q_data_dst->width &&
1280 round_up(q_data_src->width, 16) != q_data_dst->width) ||
1281 (q_data_src->height != q_data_dst->height &&
1282 round_up(q_data_src->height, 16) != q_data_dst->height)) {
1283 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1284 q_data_src->width, q_data_src->height,
1285 q_data_dst->width, q_data_dst->height);
1286 ret = -EINVAL;
1287 goto err;
1288 }
1289
1290 /* Allow BIT decoder device_run with no new buffers queued */
1291 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1292 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1293
1294 ctx->gopcounter = ctx->params.gop_size - 1;
1295
1296 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1297 q_data_dst->fourcc);
1298 if (!ctx->codec) {
1299 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1300 ret = -EINVAL;
1301 goto err;
1302 }
1303
1304 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1305 ctx->params.gop_size = 1;
1306 ctx->gopcounter = ctx->params.gop_size - 1;
1307
1308 ret = ctx->ops->start_streaming(ctx);
1309 if (ctx->inst_type == CODA_INST_DECODER) {
1310 if (ret == -EAGAIN)
1311 return 0;
1312 else if (ret < 0)
1313 goto err;
1314 }
1315
1316 ctx->initialized = 1;
1317 return ret;
1318
1319 err:
1320 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1321 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1322 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1323 } else {
1324 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1325 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1326 }
1327 return ret;
1328 }
1329
1330 static void coda_stop_streaming(struct vb2_queue *q)
1331 {
1332 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1333 struct coda_dev *dev = ctx->dev;
1334 struct vb2_buffer *buf;
1335 bool stop;
1336
1337 stop = ctx->streamon_out && ctx->streamon_cap;
1338
1339 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1340 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1341 "%s: output\n", __func__);
1342 ctx->streamon_out = 0;
1343
1344 coda_bit_stream_end_flag(ctx);
1345
1346 ctx->qsequence = 0;
1347
1348 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1349 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1350 } else {
1351 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1352 "%s: capture\n", __func__);
1353 ctx->streamon_cap = 0;
1354
1355 ctx->osequence = 0;
1356 ctx->sequence_offset = 0;
1357
1358 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1359 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1360 }
1361
1362 if (stop) {
1363 struct coda_buffer_meta *meta;
1364
1365 if (ctx->ops->seq_end_work) {
1366 queue_work(dev->workqueue, &ctx->seq_end_work);
1367 flush_work(&ctx->seq_end_work);
1368 }
1369 mutex_lock(&ctx->bitstream_mutex);
1370 while (!list_empty(&ctx->buffer_meta_list)) {
1371 meta = list_first_entry(&ctx->buffer_meta_list,
1372 struct coda_buffer_meta, list);
1373 list_del(&meta->list);
1374 kfree(meta);
1375 }
1376 mutex_unlock(&ctx->bitstream_mutex);
1377 kfifo_init(&ctx->bitstream_fifo,
1378 ctx->bitstream.vaddr, ctx->bitstream.size);
1379 ctx->initialized = 0;
1380 ctx->runcounter = 0;
1381 ctx->aborting = 0;
1382 }
1383 }
1384
1385 static const struct vb2_ops coda_qops = {
1386 .queue_setup = coda_queue_setup,
1387 .buf_prepare = coda_buf_prepare,
1388 .buf_queue = coda_buf_queue,
1389 .start_streaming = coda_start_streaming,
1390 .stop_streaming = coda_stop_streaming,
1391 .wait_prepare = vb2_ops_wait_prepare,
1392 .wait_finish = vb2_ops_wait_finish,
1393 };
1394
1395 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
1396 {
1397 struct coda_ctx *ctx =
1398 container_of(ctrl->handler, struct coda_ctx, ctrls);
1399
1400 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1401 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
1402
1403 switch (ctrl->id) {
1404 case V4L2_CID_HFLIP:
1405 if (ctrl->val)
1406 ctx->params.rot_mode |= CODA_MIR_HOR;
1407 else
1408 ctx->params.rot_mode &= ~CODA_MIR_HOR;
1409 break;
1410 case V4L2_CID_VFLIP:
1411 if (ctrl->val)
1412 ctx->params.rot_mode |= CODA_MIR_VER;
1413 else
1414 ctx->params.rot_mode &= ~CODA_MIR_VER;
1415 break;
1416 case V4L2_CID_MPEG_VIDEO_BITRATE:
1417 ctx->params.bitrate = ctrl->val / 1000;
1418 break;
1419 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1420 ctx->params.gop_size = ctrl->val;
1421 break;
1422 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
1423 ctx->params.h264_intra_qp = ctrl->val;
1424 break;
1425 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
1426 ctx->params.h264_inter_qp = ctrl->val;
1427 break;
1428 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1429 ctx->params.h264_min_qp = ctrl->val;
1430 break;
1431 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
1432 ctx->params.h264_max_qp = ctrl->val;
1433 break;
1434 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
1435 ctx->params.h264_deblk_alpha = ctrl->val;
1436 break;
1437 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
1438 ctx->params.h264_deblk_beta = ctrl->val;
1439 break;
1440 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
1441 ctx->params.h264_deblk_enabled = (ctrl->val ==
1442 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1443 break;
1444 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
1445 ctx->params.mpeg4_intra_qp = ctrl->val;
1446 break;
1447 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
1448 ctx->params.mpeg4_inter_qp = ctrl->val;
1449 break;
1450 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
1451 ctx->params.slice_mode = ctrl->val;
1452 break;
1453 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
1454 ctx->params.slice_max_mb = ctrl->val;
1455 break;
1456 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
1457 ctx->params.slice_max_bits = ctrl->val * 8;
1458 break;
1459 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
1460 break;
1461 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
1462 ctx->params.intra_refresh = ctrl->val;
1463 break;
1464 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1465 coda_set_jpeg_compression_quality(ctx, ctrl->val);
1466 break;
1467 case V4L2_CID_JPEG_RESTART_INTERVAL:
1468 ctx->params.jpeg_restart_interval = ctrl->val;
1469 break;
1470 default:
1471 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1472 "Invalid control, id=%d, val=%d\n",
1473 ctrl->id, ctrl->val);
1474 return -EINVAL;
1475 }
1476
1477 return 0;
1478 }
1479
1480 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
1481 .s_ctrl = coda_s_ctrl,
1482 };
1483
1484 static void coda_encode_ctrls(struct coda_ctx *ctx)
1485 {
1486 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1487 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
1488 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1489 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
1490 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1491 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
1492 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1493 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
1494 if (ctx->dev->devtype->product != CODA_960) {
1495 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1496 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
1497 }
1498 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1499 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
1500 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1501 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
1502 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1503 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
1504 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1505 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
1506 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
1507 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1508 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1509 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
1510 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1511 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
1512 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1513 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
1514 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
1515 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
1516 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1517 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
1518 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1519 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
1520 500);
1521 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1522 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1523 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1524 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
1525 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
1526 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1527 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
1528 1920 * 1088 / 256, 1, 0);
1529 }
1530
1531 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
1532 {
1533 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1534 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
1535 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1536 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
1537 }
1538
1539 static int coda_ctrls_setup(struct coda_ctx *ctx)
1540 {
1541 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
1542
1543 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1544 V4L2_CID_HFLIP, 0, 1, 1, 0);
1545 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1546 V4L2_CID_VFLIP, 0, 1, 1, 0);
1547 if (ctx->inst_type == CODA_INST_ENCODER) {
1548 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
1549 coda_jpeg_encode_ctrls(ctx);
1550 else
1551 coda_encode_ctrls(ctx);
1552 }
1553
1554 if (ctx->ctrls.error) {
1555 v4l2_err(&ctx->dev->v4l2_dev,
1556 "control initialization error (%d)",
1557 ctx->ctrls.error);
1558 return -EINVAL;
1559 }
1560
1561 return v4l2_ctrl_handler_setup(&ctx->ctrls);
1562 }
1563
1564 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
1565 {
1566 vq->drv_priv = ctx;
1567 vq->ops = &coda_qops;
1568 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1569 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1570 vq->lock = &ctx->dev->dev_mutex;
1571 /* One way to indicate end-of-stream for coda is to set the
1572 * bytesused == 0. However by default videobuf2 handles bytesused
1573 * equal to 0 as a special case and changes its value to the size
1574 * of the buffer. Set the allow_zero_bytesused flag, so
1575 * that videobuf2 will keep the value of bytesused intact.
1576 */
1577 vq->allow_zero_bytesused = 1;
1578
1579 return vb2_queue_init(vq);
1580 }
1581
1582 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
1583 struct vb2_queue *dst_vq)
1584 {
1585 int ret;
1586
1587 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1588 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1589 src_vq->mem_ops = &vb2_dma_contig_memops;
1590
1591 ret = coda_queue_init(priv, src_vq);
1592 if (ret)
1593 return ret;
1594
1595 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1596 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1597 dst_vq->mem_ops = &vb2_dma_contig_memops;
1598
1599 return coda_queue_init(priv, dst_vq);
1600 }
1601
1602 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
1603 struct vb2_queue *dst_vq)
1604 {
1605 int ret;
1606
1607 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1608 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1609 src_vq->mem_ops = &vb2_vmalloc_memops;
1610
1611 ret = coda_queue_init(priv, src_vq);
1612 if (ret)
1613 return ret;
1614
1615 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1616 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1617 dst_vq->mem_ops = &vb2_dma_contig_memops;
1618
1619 return coda_queue_init(priv, dst_vq);
1620 }
1621
1622 static int coda_next_free_instance(struct coda_dev *dev)
1623 {
1624 int idx = ffz(dev->instance_mask);
1625
1626 if ((idx < 0) ||
1627 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
1628 return -EBUSY;
1629
1630 return idx;
1631 }
1632
1633 /*
1634 * File operations
1635 */
1636
1637 static int coda_open(struct file *file)
1638 {
1639 struct video_device *vdev = video_devdata(file);
1640 struct coda_dev *dev = video_get_drvdata(vdev);
1641 struct coda_ctx *ctx = NULL;
1642 char *name;
1643 int ret;
1644 int idx;
1645
1646 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1647 if (!ctx)
1648 return -ENOMEM;
1649
1650 idx = coda_next_free_instance(dev);
1651 if (idx < 0) {
1652 ret = idx;
1653 goto err_coda_max;
1654 }
1655 set_bit(idx, &dev->instance_mask);
1656
1657 name = kasprintf(GFP_KERNEL, "context%d", idx);
1658 if (!name) {
1659 ret = -ENOMEM;
1660 goto err_coda_name_init;
1661 }
1662
1663 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
1664 kfree(name);
1665
1666 ctx->cvd = to_coda_video_device(vdev);
1667 ctx->inst_type = ctx->cvd->type;
1668 ctx->ops = ctx->cvd->ops;
1669 ctx->use_bit = !ctx->cvd->direct;
1670 init_completion(&ctx->completion);
1671 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
1672 if (ctx->ops->seq_end_work)
1673 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
1674 v4l2_fh_init(&ctx->fh, video_devdata(file));
1675 file->private_data = &ctx->fh;
1676 v4l2_fh_add(&ctx->fh);
1677 ctx->dev = dev;
1678 ctx->idx = idx;
1679 switch (dev->devtype->product) {
1680 case CODA_960:
1681 ctx->frame_mem_ctrl = 1 << 12;
1682 /* fallthrough */
1683 case CODA_7541:
1684 ctx->reg_idx = 0;
1685 break;
1686 default:
1687 ctx->reg_idx = idx;
1688 }
1689
1690 /* Power up and upload firmware if necessary */
1691 ret = pm_runtime_get_sync(&dev->plat_dev->dev);
1692 if (ret < 0) {
1693 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
1694 goto err_pm_get;
1695 }
1696
1697 ret = clk_prepare_enable(dev->clk_per);
1698 if (ret)
1699 goto err_clk_per;
1700
1701 ret = clk_prepare_enable(dev->clk_ahb);
1702 if (ret)
1703 goto err_clk_ahb;
1704
1705 set_default_params(ctx);
1706 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
1707 ctx->ops->queue_init);
1708 if (IS_ERR(ctx->fh.m2m_ctx)) {
1709 ret = PTR_ERR(ctx->fh.m2m_ctx);
1710
1711 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
1712 __func__, ret);
1713 goto err_ctx_init;
1714 }
1715
1716 ret = coda_ctrls_setup(ctx);
1717 if (ret) {
1718 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
1719 goto err_ctrls_setup;
1720 }
1721
1722 ctx->fh.ctrl_handler = &ctx->ctrls;
1723
1724 mutex_init(&ctx->bitstream_mutex);
1725 mutex_init(&ctx->buffer_mutex);
1726 INIT_LIST_HEAD(&ctx->buffer_meta_list);
1727
1728 coda_lock(ctx);
1729 list_add(&ctx->list, &dev->instances);
1730 coda_unlock(ctx);
1731
1732 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
1733 ctx->idx, ctx);
1734
1735 return 0;
1736
1737 err_ctrls_setup:
1738 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
1739 err_ctx_init:
1740 clk_disable_unprepare(dev->clk_ahb);
1741 err_clk_ahb:
1742 clk_disable_unprepare(dev->clk_per);
1743 err_clk_per:
1744 pm_runtime_put_sync(&dev->plat_dev->dev);
1745 err_pm_get:
1746 v4l2_fh_del(&ctx->fh);
1747 v4l2_fh_exit(&ctx->fh);
1748 clear_bit(ctx->idx, &dev->instance_mask);
1749 err_coda_name_init:
1750 err_coda_max:
1751 kfree(ctx);
1752 return ret;
1753 }
1754
1755 static int coda_release(struct file *file)
1756 {
1757 struct coda_dev *dev = video_drvdata(file);
1758 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
1759
1760 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
1761 ctx);
1762
1763 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1764 coda_bit_stream_end_flag(ctx);
1765
1766 /* If this instance is running, call .job_abort and wait for it to end */
1767 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
1768
1769 /* In case the instance was not running, we still need to call SEQ_END */
1770 if (ctx->initialized && ctx->ops->seq_end_work) {
1771 queue_work(dev->workqueue, &ctx->seq_end_work);
1772 flush_work(&ctx->seq_end_work);
1773 }
1774
1775 coda_lock(ctx);
1776 list_del(&ctx->list);
1777 coda_unlock(ctx);
1778
1779 if (ctx->dev->devtype->product == CODA_DX6)
1780 coda_free_aux_buf(dev, &ctx->workbuf);
1781
1782 v4l2_ctrl_handler_free(&ctx->ctrls);
1783 clk_disable_unprepare(dev->clk_ahb);
1784 clk_disable_unprepare(dev->clk_per);
1785 pm_runtime_put_sync(&dev->plat_dev->dev);
1786 v4l2_fh_del(&ctx->fh);
1787 v4l2_fh_exit(&ctx->fh);
1788 clear_bit(ctx->idx, &dev->instance_mask);
1789 if (ctx->ops->release)
1790 ctx->ops->release(ctx);
1791 debugfs_remove_recursive(ctx->debugfs_entry);
1792 kfree(ctx);
1793
1794 return 0;
1795 }
1796
1797 static const struct v4l2_file_operations coda_fops = {
1798 .owner = THIS_MODULE,
1799 .open = coda_open,
1800 .release = coda_release,
1801 .poll = v4l2_m2m_fop_poll,
1802 .unlocked_ioctl = video_ioctl2,
1803 .mmap = v4l2_m2m_fop_mmap,
1804 };
1805
1806 static int coda_hw_init(struct coda_dev *dev)
1807 {
1808 u32 data;
1809 u16 *p;
1810 int i, ret;
1811
1812 ret = clk_prepare_enable(dev->clk_per);
1813 if (ret)
1814 goto err_clk_per;
1815
1816 ret = clk_prepare_enable(dev->clk_ahb);
1817 if (ret)
1818 goto err_clk_ahb;
1819
1820 if (dev->rstc)
1821 reset_control_reset(dev->rstc);
1822
1823 /*
1824 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
1825 * The 16-bit chars in the code buffer are in memory access
1826 * order, re-sort them to CODA order for register download.
1827 * Data in this SRAM survives a reboot.
1828 */
1829 p = (u16 *)dev->codebuf.vaddr;
1830 if (dev->devtype->product == CODA_DX6) {
1831 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
1832 data = CODA_DOWN_ADDRESS_SET(i) |
1833 CODA_DOWN_DATA_SET(p[i ^ 1]);
1834 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
1835 }
1836 } else {
1837 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
1838 data = CODA_DOWN_ADDRESS_SET(i) |
1839 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
1840 3 - (i % 4)]);
1841 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
1842 }
1843 }
1844
1845 /* Clear registers */
1846 for (i = 0; i < 64; i++)
1847 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
1848
1849 /* Tell the BIT where to find everything it needs */
1850 if (dev->devtype->product == CODA_960 ||
1851 dev->devtype->product == CODA_7541) {
1852 coda_write(dev, dev->tempbuf.paddr,
1853 CODA_REG_BIT_TEMP_BUF_ADDR);
1854 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1855 } else {
1856 coda_write(dev, dev->workbuf.paddr,
1857 CODA_REG_BIT_WORK_BUF_ADDR);
1858 }
1859 coda_write(dev, dev->codebuf.paddr,
1860 CODA_REG_BIT_CODE_BUF_ADDR);
1861 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
1862
1863 /* Set default values */
1864 switch (dev->devtype->product) {
1865 case CODA_DX6:
1866 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
1867 CODA_REG_BIT_STREAM_CTRL);
1868 break;
1869 default:
1870 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
1871 CODA_REG_BIT_STREAM_CTRL);
1872 }
1873 if (dev->devtype->product == CODA_960)
1874 coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL);
1875 else
1876 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
1877
1878 if (dev->devtype->product != CODA_DX6)
1879 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
1880
1881 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
1882 CODA_REG_BIT_INT_ENABLE);
1883
1884 /* Reset VPU and start processor */
1885 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
1886 data |= CODA_REG_RESET_ENABLE;
1887 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
1888 udelay(10);
1889 data &= ~CODA_REG_RESET_ENABLE;
1890 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
1891 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
1892
1893 clk_disable_unprepare(dev->clk_ahb);
1894 clk_disable_unprepare(dev->clk_per);
1895
1896 return 0;
1897
1898 err_clk_ahb:
1899 clk_disable_unprepare(dev->clk_per);
1900 err_clk_per:
1901 return ret;
1902 }
1903
1904 static int coda_register_device(struct coda_dev *dev, int i)
1905 {
1906 struct video_device *vfd = &dev->vfd[i];
1907
1908 if (i >= dev->devtype->num_vdevs)
1909 return -EINVAL;
1910
1911 strlcpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
1912 vfd->fops = &coda_fops;
1913 vfd->ioctl_ops = &coda_ioctl_ops;
1914 vfd->release = video_device_release_empty,
1915 vfd->lock = &dev->dev_mutex;
1916 vfd->v4l2_dev = &dev->v4l2_dev;
1917 vfd->vfl_dir = VFL_DIR_M2M;
1918 video_set_drvdata(vfd, dev);
1919
1920 /* Not applicable, use the selection API instead */
1921 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
1922 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
1923 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
1924
1925 return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
1926 }
1927
1928 static void coda_fw_callback(const struct firmware *fw, void *context)
1929 {
1930 struct coda_dev *dev = context;
1931 struct platform_device *pdev = dev->plat_dev;
1932 int i, ret;
1933
1934 if (!fw) {
1935 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
1936 goto put_pm;
1937 }
1938
1939 /* allocate auxiliary per-device code buffer for the BIT processor */
1940 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
1941 dev->debugfs_root);
1942 if (ret < 0)
1943 goto put_pm;
1944
1945 /* Copy the whole firmware image to the code buffer */
1946 memcpy(dev->codebuf.vaddr, fw->data, fw->size);
1947 release_firmware(fw);
1948
1949 ret = coda_hw_init(dev);
1950 if (ret < 0) {
1951 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
1952 goto put_pm;
1953 }
1954
1955 ret = coda_check_firmware(dev);
1956 if (ret < 0)
1957 goto put_pm;
1958
1959 dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
1960 if (IS_ERR(dev->alloc_ctx)) {
1961 v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
1962 goto put_pm;
1963 }
1964
1965 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
1966 if (IS_ERR(dev->m2m_dev)) {
1967 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
1968 goto rel_ctx;
1969 }
1970
1971 for (i = 0; i < dev->devtype->num_vdevs; i++) {
1972 ret = coda_register_device(dev, i);
1973 if (ret) {
1974 v4l2_err(&dev->v4l2_dev,
1975 "Failed to register %s video device: %d\n",
1976 dev->devtype->vdevs[i]->name, ret);
1977 goto rel_vfd;
1978 }
1979 }
1980
1981 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
1982 dev->vfd[0].num, dev->vfd[i - 1].num);
1983
1984 pm_runtime_put_sync(&pdev->dev);
1985 return;
1986
1987 rel_vfd:
1988 while (--i >= 0)
1989 video_unregister_device(&dev->vfd[i]);
1990 v4l2_m2m_release(dev->m2m_dev);
1991 rel_ctx:
1992 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
1993 put_pm:
1994 pm_runtime_put_sync(&pdev->dev);
1995 }
1996
1997 static int coda_firmware_request(struct coda_dev *dev)
1998 {
1999 char *fw = dev->devtype->firmware;
2000
2001 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
2002 coda_product_name(dev->devtype->product));
2003
2004 return request_firmware_nowait(THIS_MODULE, true,
2005 fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback);
2006 }
2007
2008 enum coda_platform {
2009 CODA_IMX27,
2010 CODA_IMX53,
2011 CODA_IMX6Q,
2012 CODA_IMX6DL,
2013 };
2014
2015 static const struct coda_devtype coda_devdata[] = {
2016 [CODA_IMX27] = {
2017 .firmware = "v4l-codadx6-imx27.bin",
2018 .product = CODA_DX6,
2019 .codecs = codadx6_codecs,
2020 .num_codecs = ARRAY_SIZE(codadx6_codecs),
2021 .vdevs = codadx6_video_devices,
2022 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
2023 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2024 .iram_size = 0xb000,
2025 },
2026 [CODA_IMX53] = {
2027 .firmware = "v4l-coda7541-imx53.bin",
2028 .product = CODA_7541,
2029 .codecs = coda7_codecs,
2030 .num_codecs = ARRAY_SIZE(coda7_codecs),
2031 .vdevs = coda7_video_devices,
2032 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
2033 .workbuf_size = 128 * 1024,
2034 .tempbuf_size = 304 * 1024,
2035 .iram_size = 0x14000,
2036 },
2037 [CODA_IMX6Q] = {
2038 .firmware = "v4l-coda960-imx6q.bin",
2039 .product = CODA_960,
2040 .codecs = coda9_codecs,
2041 .num_codecs = ARRAY_SIZE(coda9_codecs),
2042 .vdevs = coda9_video_devices,
2043 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2044 .workbuf_size = 80 * 1024,
2045 .tempbuf_size = 204 * 1024,
2046 .iram_size = 0x21000,
2047 },
2048 [CODA_IMX6DL] = {
2049 .firmware = "v4l-coda960-imx6dl.bin",
2050 .product = CODA_960,
2051 .codecs = coda9_codecs,
2052 .num_codecs = ARRAY_SIZE(coda9_codecs),
2053 .vdevs = coda9_video_devices,
2054 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2055 .workbuf_size = 80 * 1024,
2056 .tempbuf_size = 204 * 1024,
2057 .iram_size = 0x20000,
2058 },
2059 };
2060
2061 static struct platform_device_id coda_platform_ids[] = {
2062 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2063 { /* sentinel */ }
2064 };
2065 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2066
2067 #ifdef CONFIG_OF
2068 static const struct of_device_id coda_dt_ids[] = {
2069 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2070 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2071 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2072 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2073 { /* sentinel */ }
2074 };
2075 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2076 #endif
2077
2078 static int coda_probe(struct platform_device *pdev)
2079 {
2080 const struct of_device_id *of_id =
2081 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2082 const struct platform_device_id *pdev_id;
2083 struct coda_platform_data *pdata = pdev->dev.platform_data;
2084 struct device_node *np = pdev->dev.of_node;
2085 struct gen_pool *pool;
2086 struct coda_dev *dev;
2087 struct resource *res;
2088 int ret, irq;
2089
2090 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2091 if (!dev)
2092 return -ENOMEM;
2093
2094 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2095
2096 if (of_id) {
2097 dev->devtype = of_id->data;
2098 } else if (pdev_id) {
2099 dev->devtype = &coda_devdata[pdev_id->driver_data];
2100 } else {
2101 ret = -EINVAL;
2102 goto err_v4l2_register;
2103 }
2104
2105 spin_lock_init(&dev->irqlock);
2106 INIT_LIST_HEAD(&dev->instances);
2107
2108 dev->plat_dev = pdev;
2109 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2110 if (IS_ERR(dev->clk_per)) {
2111 dev_err(&pdev->dev, "Could not get per clock\n");
2112 return PTR_ERR(dev->clk_per);
2113 }
2114
2115 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2116 if (IS_ERR(dev->clk_ahb)) {
2117 dev_err(&pdev->dev, "Could not get ahb clock\n");
2118 return PTR_ERR(dev->clk_ahb);
2119 }
2120
2121 /* Get memory for physical registers */
2122 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2123 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
2124 if (IS_ERR(dev->regs_base))
2125 return PTR_ERR(dev->regs_base);
2126
2127 /* IRQ */
2128 irq = platform_get_irq_byname(pdev, "bit");
2129 if (irq < 0)
2130 irq = platform_get_irq(pdev, 0);
2131 if (irq < 0) {
2132 dev_err(&pdev->dev, "failed to get irq resource\n");
2133 return irq;
2134 }
2135
2136 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
2137 IRQF_ONESHOT, dev_name(&pdev->dev), dev);
2138 if (ret < 0) {
2139 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2140 return ret;
2141 }
2142
2143 dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
2144 if (IS_ERR(dev->rstc)) {
2145 ret = PTR_ERR(dev->rstc);
2146 if (ret == -ENOENT || ret == -ENOSYS) {
2147 dev->rstc = NULL;
2148 } else {
2149 dev_err(&pdev->dev, "failed get reset control: %d\n",
2150 ret);
2151 return ret;
2152 }
2153 }
2154
2155 /* Get IRAM pool from device tree or platform data */
2156 pool = of_gen_pool_get(np, "iram", 0);
2157 if (!pool && pdata)
2158 pool = gen_pool_get(pdata->iram_dev);
2159 if (!pool) {
2160 dev_err(&pdev->dev, "iram pool not available\n");
2161 return -ENOMEM;
2162 }
2163 dev->iram_pool = pool;
2164
2165 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
2166 if (ret)
2167 return ret;
2168
2169 mutex_init(&dev->dev_mutex);
2170 mutex_init(&dev->coda_mutex);
2171
2172 dev->debugfs_root = debugfs_create_dir("coda", NULL);
2173 if (!dev->debugfs_root)
2174 dev_warn(&pdev->dev, "failed to create debugfs root\n");
2175
2176 /* allocate auxiliary per-device buffers for the BIT processor */
2177 if (dev->devtype->product == CODA_DX6) {
2178 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
2179 dev->devtype->workbuf_size, "workbuf",
2180 dev->debugfs_root);
2181 if (ret < 0)
2182 goto err_v4l2_register;
2183 }
2184
2185 if (dev->devtype->tempbuf_size) {
2186 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
2187 dev->devtype->tempbuf_size, "tempbuf",
2188 dev->debugfs_root);
2189 if (ret < 0)
2190 goto err_v4l2_register;
2191 }
2192
2193 dev->iram.size = dev->devtype->iram_size;
2194 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
2195 &dev->iram.paddr);
2196 if (!dev->iram.vaddr) {
2197 dev_warn(&pdev->dev, "unable to alloc iram\n");
2198 } else {
2199 memset(dev->iram.vaddr, 0, dev->iram.size);
2200 dev->iram.blob.data = dev->iram.vaddr;
2201 dev->iram.blob.size = dev->iram.size;
2202 dev->iram.dentry = debugfs_create_blob("iram", 0644,
2203 dev->debugfs_root,
2204 &dev->iram.blob);
2205 }
2206
2207 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
2208 if (!dev->workqueue) {
2209 dev_err(&pdev->dev, "unable to alloc workqueue\n");
2210 ret = -ENOMEM;
2211 goto err_v4l2_register;
2212 }
2213
2214 platform_set_drvdata(pdev, dev);
2215
2216 /*
2217 * Start activated so we can directly call coda_hw_init in
2218 * coda_fw_callback regardless of whether CONFIG_PM is
2219 * enabled or whether the device is associated with a PM domain.
2220 */
2221 pm_runtime_get_noresume(&pdev->dev);
2222 pm_runtime_set_active(&pdev->dev);
2223 pm_runtime_enable(&pdev->dev);
2224
2225 return coda_firmware_request(dev);
2226
2227 err_v4l2_register:
2228 v4l2_device_unregister(&dev->v4l2_dev);
2229 return ret;
2230 }
2231
2232 static int coda_remove(struct platform_device *pdev)
2233 {
2234 struct coda_dev *dev = platform_get_drvdata(pdev);
2235 int i;
2236
2237 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
2238 if (video_get_drvdata(&dev->vfd[i]))
2239 video_unregister_device(&dev->vfd[i]);
2240 }
2241 if (dev->m2m_dev)
2242 v4l2_m2m_release(dev->m2m_dev);
2243 pm_runtime_disable(&pdev->dev);
2244 if (dev->alloc_ctx)
2245 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
2246 v4l2_device_unregister(&dev->v4l2_dev);
2247 destroy_workqueue(dev->workqueue);
2248 if (dev->iram.vaddr)
2249 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
2250 dev->iram.size);
2251 coda_free_aux_buf(dev, &dev->codebuf);
2252 coda_free_aux_buf(dev, &dev->tempbuf);
2253 coda_free_aux_buf(dev, &dev->workbuf);
2254 debugfs_remove_recursive(dev->debugfs_root);
2255 return 0;
2256 }
2257
2258 #ifdef CONFIG_PM
2259 static int coda_runtime_resume(struct device *dev)
2260 {
2261 struct coda_dev *cdev = dev_get_drvdata(dev);
2262 int ret = 0;
2263
2264 if (dev->pm_domain && cdev->codebuf.vaddr) {
2265 ret = coda_hw_init(cdev);
2266 if (ret)
2267 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
2268 }
2269
2270 return ret;
2271 }
2272 #endif
2273
2274 static const struct dev_pm_ops coda_pm_ops = {
2275 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
2276 };
2277
2278 static struct platform_driver coda_driver = {
2279 .probe = coda_probe,
2280 .remove = coda_remove,
2281 .driver = {
2282 .name = CODA_NAME,
2283 .of_match_table = of_match_ptr(coda_dt_ids),
2284 .pm = &coda_pm_ops,
2285 },
2286 .id_table = coda_platform_ids,
2287 };
2288
2289 module_platform_driver(coda_driver);
2290
2291 MODULE_LICENSE("GPL");
2292 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
2293 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
Linux kernel - Deliverables
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