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