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[mirror_ubuntu-jammy-kernel.git] / drivers / media / platform / coda / coda-common.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Coda multi-standard codec IP
4 *
5 * Copyright (C) 2012 Vista Silicon S.L.
6 * Javier Martin, <javier.martin@vista-silicon.com>
7 * Xavier Duret
8 */
9
10 #include <linux/clk.h>
11 #include <linux/debugfs.h>
12 #include <linux/delay.h>
13 #include <linux/firmware.h>
14 #include <linux/gcd.h>
15 #include <linux/genalloc.h>
16 #include <linux/idr.h>
17 #include <linux/interrupt.h>
18 #include <linux/io.h>
19 #include <linux/irq.h>
20 #include <linux/kfifo.h>
21 #include <linux/module.h>
22 #include <linux/of_device.h>
23 #include <linux/platform_device.h>
24 #include <linux/pm_runtime.h>
25 #include <linux/slab.h>
26 #include <linux/videodev2.h>
27 #include <linux/of.h>
28 #include <linux/ratelimit.h>
29 #include <linux/reset.h>
30
31 #include <media/v4l2-ctrls.h>
32 #include <media/v4l2-device.h>
33 #include <media/v4l2-event.h>
34 #include <media/v4l2-ioctl.h>
35 #include <media/v4l2-mem2mem.h>
36 #include <media/videobuf2-v4l2.h>
37 #include <media/videobuf2-dma-contig.h>
38 #include <media/videobuf2-vmalloc.h>
39
40 #include "coda.h"
41 #include "imx-vdoa.h"
42
43 #define CODA_NAME "coda"
44
45 #define CODADX6_MAX_INSTANCES 4
46 #define CODA_MAX_FORMATS 4
47
48 #define CODA_ISRAM_SIZE (2048 * 2)
49
50 #define MIN_W 48
51 #define MIN_H 16
52
53 #define S_ALIGN 1 /* multiple of 2 */
54 #define W_ALIGN 1 /* multiple of 2 */
55 #define H_ALIGN 1 /* multiple of 2 */
56
57 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
58
59 int coda_debug;
60 module_param(coda_debug, int, 0644);
61 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
62
63 static int disable_tiling;
64 module_param(disable_tiling, int, 0644);
65 MODULE_PARM_DESC(disable_tiling, "Disable tiled frame buffers");
66
67 static int disable_vdoa;
68 module_param(disable_vdoa, int, 0644);
69 MODULE_PARM_DESC(disable_vdoa, "Disable Video Data Order Adapter tiled to raster-scan conversion");
70
71 static int enable_bwb = 0;
72 module_param(enable_bwb, int, 0644);
73 MODULE_PARM_DESC(enable_bwb, "Enable BWB unit for decoding, may crash on certain streams");
74
75 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
76 {
77 v4l2_dbg(3, coda_debug, &dev->v4l2_dev,
78 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
79 writel(data, dev->regs_base + reg);
80 }
81
82 unsigned int coda_read(struct coda_dev *dev, u32 reg)
83 {
84 u32 data;
85
86 data = readl(dev->regs_base + reg);
87 v4l2_dbg(3, coda_debug, &dev->v4l2_dev,
88 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
89 return data;
90 }
91
92 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
93 struct vb2_v4l2_buffer *buf, unsigned int reg_y)
94 {
95 u32 base_y = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
96 u32 base_cb, base_cr;
97
98 switch (q_data->fourcc) {
99 case V4L2_PIX_FMT_YUYV:
100 /* Fallthrough: IN -H264-> CODA -NV12 MB-> VDOA -YUYV-> OUT */
101 case V4L2_PIX_FMT_NV12:
102 case V4L2_PIX_FMT_YUV420:
103 default:
104 base_cb = base_y + q_data->bytesperline * q_data->height;
105 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
106 break;
107 case V4L2_PIX_FMT_YVU420:
108 /* Switch Cb and Cr for YVU420 format */
109 base_cr = base_y + q_data->bytesperline * q_data->height;
110 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
111 break;
112 case V4L2_PIX_FMT_YUV422P:
113 base_cb = base_y + q_data->bytesperline * q_data->height;
114 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
115 }
116
117 coda_write(ctx->dev, base_y, reg_y);
118 coda_write(ctx->dev, base_cb, reg_y + 4);
119 coda_write(ctx->dev, base_cr, reg_y + 8);
120 }
121
122 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
123 { mode, src_fourcc, dst_fourcc, max_w, max_h }
124
125 /*
126 * Arrays of codecs supported by each given version of Coda:
127 * i.MX27 -> codadx6
128 * i.MX51 -> codahx4
129 * i.MX53 -> coda7
130 * i.MX6 -> coda960
131 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
132 */
133 static const struct coda_codec codadx6_codecs[] = {
134 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
135 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
136 };
137
138 static const struct coda_codec codahx4_codecs[] = {
139 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
140 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
141 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
142 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1280, 720),
143 };
144
145 static const struct coda_codec coda7_codecs[] = {
146 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
147 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
148 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
149 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
150 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
151 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
152 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
153 };
154
155 static const struct coda_codec coda9_codecs[] = {
156 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
157 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
158 CODA_CODEC(CODA9_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
159 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
160 CODA_CODEC(CODA9_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
161 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
162 CODA_CODEC(CODA9_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
163 };
164
165 struct coda_video_device {
166 const char *name;
167 enum coda_inst_type type;
168 const struct coda_context_ops *ops;
169 bool direct;
170 u32 src_formats[CODA_MAX_FORMATS];
171 u32 dst_formats[CODA_MAX_FORMATS];
172 };
173
174 static const struct coda_video_device coda_bit_encoder = {
175 .name = "coda-video-encoder",
176 .type = CODA_INST_ENCODER,
177 .ops = &coda_bit_encode_ops,
178 .src_formats = {
179 V4L2_PIX_FMT_NV12,
180 V4L2_PIX_FMT_YUV420,
181 V4L2_PIX_FMT_YVU420,
182 },
183 .dst_formats = {
184 V4L2_PIX_FMT_H264,
185 V4L2_PIX_FMT_MPEG4,
186 },
187 };
188
189 static const struct coda_video_device coda_bit_jpeg_encoder = {
190 .name = "coda-jpeg-encoder",
191 .type = CODA_INST_ENCODER,
192 .ops = &coda_bit_encode_ops,
193 .src_formats = {
194 V4L2_PIX_FMT_NV12,
195 V4L2_PIX_FMT_YUV420,
196 V4L2_PIX_FMT_YVU420,
197 V4L2_PIX_FMT_YUV422P,
198 },
199 .dst_formats = {
200 V4L2_PIX_FMT_JPEG,
201 },
202 };
203
204 static const struct coda_video_device coda_bit_decoder = {
205 .name = "coda-video-decoder",
206 .type = CODA_INST_DECODER,
207 .ops = &coda_bit_decode_ops,
208 .src_formats = {
209 V4L2_PIX_FMT_H264,
210 V4L2_PIX_FMT_MPEG2,
211 V4L2_PIX_FMT_MPEG4,
212 },
213 .dst_formats = {
214 V4L2_PIX_FMT_NV12,
215 V4L2_PIX_FMT_YUV420,
216 V4L2_PIX_FMT_YVU420,
217 /*
218 * If V4L2_PIX_FMT_YUYV should be default,
219 * set_default_params() must be adjusted.
220 */
221 V4L2_PIX_FMT_YUYV,
222 },
223 };
224
225 static const struct coda_video_device coda_bit_jpeg_decoder = {
226 .name = "coda-jpeg-decoder",
227 .type = CODA_INST_DECODER,
228 .ops = &coda_bit_decode_ops,
229 .src_formats = {
230 V4L2_PIX_FMT_JPEG,
231 },
232 .dst_formats = {
233 V4L2_PIX_FMT_NV12,
234 V4L2_PIX_FMT_YUV420,
235 V4L2_PIX_FMT_YVU420,
236 V4L2_PIX_FMT_YUV422P,
237 },
238 };
239
240 static const struct coda_video_device coda9_jpeg_encoder = {
241 .name = "coda-jpeg-encoder",
242 .type = CODA_INST_ENCODER,
243 .ops = &coda9_jpeg_encode_ops,
244 .direct = true,
245 .src_formats = {
246 V4L2_PIX_FMT_NV12,
247 V4L2_PIX_FMT_YUV420,
248 V4L2_PIX_FMT_YVU420,
249 V4L2_PIX_FMT_YUV422P,
250 },
251 .dst_formats = {
252 V4L2_PIX_FMT_JPEG,
253 },
254 };
255
256 static const struct coda_video_device coda9_jpeg_decoder = {
257 .name = "coda-jpeg-decoder",
258 .type = CODA_INST_DECODER,
259 .ops = &coda9_jpeg_decode_ops,
260 .direct = true,
261 .src_formats = {
262 V4L2_PIX_FMT_JPEG,
263 },
264 .dst_formats = {
265 V4L2_PIX_FMT_NV12,
266 V4L2_PIX_FMT_YUV420,
267 V4L2_PIX_FMT_YVU420,
268 V4L2_PIX_FMT_YUV422P,
269 },
270 };
271
272 static const struct coda_video_device *codadx6_video_devices[] = {
273 &coda_bit_encoder,
274 };
275
276 static const struct coda_video_device *codahx4_video_devices[] = {
277 &coda_bit_encoder,
278 &coda_bit_decoder,
279 };
280
281 static const struct coda_video_device *coda7_video_devices[] = {
282 &coda_bit_jpeg_encoder,
283 &coda_bit_jpeg_decoder,
284 &coda_bit_encoder,
285 &coda_bit_decoder,
286 };
287
288 static const struct coda_video_device *coda9_video_devices[] = {
289 &coda9_jpeg_encoder,
290 &coda9_jpeg_decoder,
291 &coda_bit_encoder,
292 &coda_bit_decoder,
293 };
294
295 /*
296 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
297 * tables.
298 */
299 static u32 coda_format_normalize_yuv(u32 fourcc)
300 {
301 switch (fourcc) {
302 case V4L2_PIX_FMT_NV12:
303 case V4L2_PIX_FMT_YUV420:
304 case V4L2_PIX_FMT_YVU420:
305 case V4L2_PIX_FMT_YUV422P:
306 case V4L2_PIX_FMT_YUYV:
307 return V4L2_PIX_FMT_YUV420;
308 default:
309 return fourcc;
310 }
311 }
312
313 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
314 int src_fourcc, int dst_fourcc)
315 {
316 const struct coda_codec *codecs = dev->devtype->codecs;
317 int num_codecs = dev->devtype->num_codecs;
318 int k;
319
320 src_fourcc = coda_format_normalize_yuv(src_fourcc);
321 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
322 if (src_fourcc == dst_fourcc)
323 return NULL;
324
325 for (k = 0; k < num_codecs; k++) {
326 if (codecs[k].src_fourcc == src_fourcc &&
327 codecs[k].dst_fourcc == dst_fourcc)
328 break;
329 }
330
331 if (k == num_codecs)
332 return NULL;
333
334 return &codecs[k];
335 }
336
337 static void coda_get_max_dimensions(struct coda_dev *dev,
338 const struct coda_codec *codec,
339 int *max_w, int *max_h)
340 {
341 const struct coda_codec *codecs = dev->devtype->codecs;
342 int num_codecs = dev->devtype->num_codecs;
343 unsigned int w, h;
344 int k;
345
346 if (codec) {
347 w = codec->max_w;
348 h = codec->max_h;
349 } else {
350 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
351 w = max(w, codecs[k].max_w);
352 h = max(h, codecs[k].max_h);
353 }
354 }
355
356 if (max_w)
357 *max_w = w;
358 if (max_h)
359 *max_h = h;
360 }
361
362 static const struct coda_video_device *to_coda_video_device(struct video_device
363 *vdev)
364 {
365 struct coda_dev *dev = video_get_drvdata(vdev);
366 unsigned int i = vdev - dev->vfd;
367
368 if (i >= dev->devtype->num_vdevs)
369 return NULL;
370
371 return dev->devtype->vdevs[i];
372 }
373
374 const char *coda_product_name(int product)
375 {
376 static char buf[9];
377
378 switch (product) {
379 case CODA_DX6:
380 return "CodaDx6";
381 case CODA_HX4:
382 return "CodaHx4";
383 case CODA_7541:
384 return "CODA7541";
385 case CODA_960:
386 return "CODA960";
387 default:
388 snprintf(buf, sizeof(buf), "(0x%04x)", product);
389 return buf;
390 }
391 }
392
393 static struct vdoa_data *coda_get_vdoa_data(void)
394 {
395 struct device_node *vdoa_node;
396 struct platform_device *vdoa_pdev;
397 struct vdoa_data *vdoa_data = NULL;
398
399 vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
400 if (!vdoa_node)
401 return NULL;
402
403 vdoa_pdev = of_find_device_by_node(vdoa_node);
404 if (!vdoa_pdev)
405 goto out;
406
407 vdoa_data = platform_get_drvdata(vdoa_pdev);
408 if (!vdoa_data)
409 vdoa_data = ERR_PTR(-EPROBE_DEFER);
410
411 out:
412 of_node_put(vdoa_node);
413
414 return vdoa_data;
415 }
416
417 /*
418 * V4L2 ioctl() operations.
419 */
420 static int coda_querycap(struct file *file, void *priv,
421 struct v4l2_capability *cap)
422 {
423 struct coda_ctx *ctx = fh_to_ctx(priv);
424
425 strscpy(cap->driver, CODA_NAME, sizeof(cap->driver));
426 strscpy(cap->card, coda_product_name(ctx->dev->devtype->product),
427 sizeof(cap->card));
428 strscpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
429 return 0;
430 }
431
432 static const u32 coda_formats_420[CODA_MAX_FORMATS] = {
433 V4L2_PIX_FMT_NV12,
434 V4L2_PIX_FMT_YUV420,
435 V4L2_PIX_FMT_YVU420,
436 };
437
438 static int coda_enum_fmt(struct file *file, void *priv,
439 struct v4l2_fmtdesc *f)
440 {
441 struct video_device *vdev = video_devdata(file);
442 const struct coda_video_device *cvd = to_coda_video_device(vdev);
443 struct coda_ctx *ctx = fh_to_ctx(priv);
444 const u32 *formats;
445
446 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
447 formats = cvd->src_formats;
448 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
449 struct coda_q_data *q_data_src;
450 struct vb2_queue *src_vq;
451
452 formats = cvd->dst_formats;
453
454 /*
455 * If the source format is already fixed, only allow the same
456 * chroma subsampling.
457 */
458 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
459 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
460 V4L2_BUF_TYPE_VIDEO_OUTPUT);
461 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG &&
462 vb2_is_streaming(src_vq)) {
463 if (ctx->params.jpeg_chroma_subsampling ==
464 V4L2_JPEG_CHROMA_SUBSAMPLING_420) {
465 formats = coda_formats_420;
466 } else if (ctx->params.jpeg_chroma_subsampling ==
467 V4L2_JPEG_CHROMA_SUBSAMPLING_422) {
468 f->pixelformat = V4L2_PIX_FMT_YUV422P;
469 return f->index ? -EINVAL : 0;
470 }
471 }
472 } else {
473 return -EINVAL;
474 }
475
476 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
477 return -EINVAL;
478
479 /* Skip YUYV if the vdoa is not available */
480 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
481 formats[f->index] == V4L2_PIX_FMT_YUYV)
482 return -EINVAL;
483
484 f->pixelformat = formats[f->index];
485
486 return 0;
487 }
488
489 static int coda_g_fmt(struct file *file, void *priv,
490 struct v4l2_format *f)
491 {
492 struct coda_q_data *q_data;
493 struct coda_ctx *ctx = fh_to_ctx(priv);
494
495 q_data = get_q_data(ctx, f->type);
496 if (!q_data)
497 return -EINVAL;
498
499 f->fmt.pix.field = V4L2_FIELD_NONE;
500 f->fmt.pix.pixelformat = q_data->fourcc;
501 f->fmt.pix.width = q_data->width;
502 f->fmt.pix.height = q_data->height;
503 f->fmt.pix.bytesperline = q_data->bytesperline;
504
505 f->fmt.pix.sizeimage = q_data->sizeimage;
506 f->fmt.pix.colorspace = ctx->colorspace;
507 f->fmt.pix.xfer_func = ctx->xfer_func;
508 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
509 f->fmt.pix.quantization = ctx->quantization;
510
511 return 0;
512 }
513
514 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
515 {
516 struct coda_q_data *q_data;
517 const u32 *formats;
518 int i;
519
520 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
521 formats = ctx->cvd->src_formats;
522 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
523 formats = ctx->cvd->dst_formats;
524 else
525 return -EINVAL;
526
527 for (i = 0; i < CODA_MAX_FORMATS; i++) {
528 /* Skip YUYV if the vdoa is not available */
529 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
530 formats[i] == V4L2_PIX_FMT_YUYV)
531 continue;
532
533 if (formats[i] == f->fmt.pix.pixelformat) {
534 f->fmt.pix.pixelformat = formats[i];
535 return 0;
536 }
537 }
538
539 /* Fall back to currently set pixelformat */
540 q_data = get_q_data(ctx, f->type);
541 f->fmt.pix.pixelformat = q_data->fourcc;
542
543 return 0;
544 }
545
546 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
547 bool *use_vdoa)
548 {
549 int err;
550
551 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
552 return -EINVAL;
553
554 if (!use_vdoa)
555 return -EINVAL;
556
557 if (!ctx->vdoa) {
558 *use_vdoa = false;
559 return 0;
560 }
561
562 err = vdoa_context_configure(NULL, round_up(f->fmt.pix.width, 16),
563 f->fmt.pix.height, f->fmt.pix.pixelformat);
564 if (err) {
565 *use_vdoa = false;
566 return 0;
567 }
568
569 *use_vdoa = true;
570 return 0;
571 }
572
573 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
574 u32 width, u32 height)
575 {
576 /*
577 * This is a rough estimate for sensible compressed buffer
578 * sizes (between 1 and 16 bits per pixel). This could be
579 * improved by better format specific worst case estimates.
580 */
581 return round_up(clamp(sizeimage, width * height / 8,
582 width * height * 2), PAGE_SIZE);
583 }
584
585 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
586 struct v4l2_format *f)
587 {
588 struct coda_dev *dev = ctx->dev;
589 unsigned int max_w, max_h;
590 enum v4l2_field field;
591
592 field = f->fmt.pix.field;
593 if (field == V4L2_FIELD_ANY)
594 field = V4L2_FIELD_NONE;
595 else if (V4L2_FIELD_NONE != field)
596 return -EINVAL;
597
598 /* V4L2 specification suggests the driver corrects the format struct
599 * if any of the dimensions is unsupported */
600 f->fmt.pix.field = field;
601
602 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
603 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
604 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
605 S_ALIGN);
606
607 switch (f->fmt.pix.pixelformat) {
608 case V4L2_PIX_FMT_NV12:
609 case V4L2_PIX_FMT_YUV420:
610 case V4L2_PIX_FMT_YVU420:
611 /*
612 * Frame stride must be at least multiple of 8,
613 * but multiple of 16 for h.264 or JPEG 4:2:x
614 */
615 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
616 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
617 f->fmt.pix.height * 3 / 2;
618 break;
619 case V4L2_PIX_FMT_YUYV:
620 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
621 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
622 f->fmt.pix.height;
623 break;
624 case V4L2_PIX_FMT_YUV422P:
625 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
626 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
627 f->fmt.pix.height * 2;
628 break;
629 case V4L2_PIX_FMT_JPEG:
630 case V4L2_PIX_FMT_H264:
631 case V4L2_PIX_FMT_MPEG4:
632 case V4L2_PIX_FMT_MPEG2:
633 f->fmt.pix.bytesperline = 0;
634 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
635 f->fmt.pix.sizeimage,
636 f->fmt.pix.width,
637 f->fmt.pix.height);
638 break;
639 default:
640 BUG();
641 }
642
643 return 0;
644 }
645
646 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
647 struct v4l2_format *f)
648 {
649 struct coda_ctx *ctx = fh_to_ctx(priv);
650 const struct coda_q_data *q_data_src;
651 const struct coda_codec *codec;
652 struct vb2_queue *src_vq;
653 int ret;
654 bool use_vdoa;
655
656 ret = coda_try_pixelformat(ctx, f);
657 if (ret < 0)
658 return ret;
659
660 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
661
662 /*
663 * If the source format is already fixed, only allow the same output
664 * resolution. When decoding JPEG images, we also have to make sure to
665 * use the same chroma subsampling.
666 */
667 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
668 if (vb2_is_streaming(src_vq)) {
669 f->fmt.pix.width = q_data_src->width;
670 f->fmt.pix.height = q_data_src->height;
671
672 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG) {
673 if (ctx->params.jpeg_chroma_subsampling ==
674 V4L2_JPEG_CHROMA_SUBSAMPLING_420 &&
675 f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV422P)
676 f->fmt.pix.pixelformat = V4L2_PIX_FMT_NV12;
677 else if (ctx->params.jpeg_chroma_subsampling ==
678 V4L2_JPEG_CHROMA_SUBSAMPLING_422)
679 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
680 }
681 }
682
683 f->fmt.pix.colorspace = ctx->colorspace;
684 f->fmt.pix.xfer_func = ctx->xfer_func;
685 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
686 f->fmt.pix.quantization = ctx->quantization;
687
688 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
689 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
690 f->fmt.pix.pixelformat);
691 if (!codec)
692 return -EINVAL;
693
694 ret = coda_try_fmt(ctx, codec, f);
695 if (ret < 0)
696 return ret;
697
698 /* The decoders always write complete macroblocks or MCUs */
699 if (ctx->inst_type == CODA_INST_DECODER) {
700 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
701 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
702 if (codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
703 f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV422P) {
704 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
705 f->fmt.pix.height * 2;
706 } else {
707 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
708 f->fmt.pix.height * 3 / 2;
709 }
710
711 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
712 if (ret < 0)
713 return ret;
714
715 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
716 if (!use_vdoa)
717 return -EINVAL;
718
719 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
720 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
721 f->fmt.pix.height;
722 }
723 }
724
725 return 0;
726 }
727
728 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
729 {
730 enum v4l2_colorspace colorspace;
731
732 if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
733 colorspace = V4L2_COLORSPACE_JPEG;
734 else if (fmt->width <= 720 && fmt->height <= 576)
735 colorspace = V4L2_COLORSPACE_SMPTE170M;
736 else
737 colorspace = V4L2_COLORSPACE_REC709;
738
739 fmt->colorspace = colorspace;
740 fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
741 fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
742 fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
743 }
744
745 static int coda_try_fmt_vid_out(struct file *file, void *priv,
746 struct v4l2_format *f)
747 {
748 struct coda_ctx *ctx = fh_to_ctx(priv);
749 struct coda_dev *dev = ctx->dev;
750 const struct coda_q_data *q_data_dst;
751 const struct coda_codec *codec;
752 int ret;
753
754 ret = coda_try_pixelformat(ctx, f);
755 if (ret < 0)
756 return ret;
757
758 if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
759 coda_set_default_colorspace(&f->fmt.pix);
760
761 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
762 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
763
764 return coda_try_fmt(ctx, codec, f);
765 }
766
767 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
768 struct v4l2_rect *r)
769 {
770 struct coda_q_data *q_data;
771 struct vb2_queue *vq;
772
773 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
774 if (!vq)
775 return -EINVAL;
776
777 q_data = get_q_data(ctx, f->type);
778 if (!q_data)
779 return -EINVAL;
780
781 if (vb2_is_busy(vq)) {
782 v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
783 __func__, v4l2_type_names[f->type], vq->num_buffers);
784 return -EBUSY;
785 }
786
787 q_data->fourcc = f->fmt.pix.pixelformat;
788 q_data->width = f->fmt.pix.width;
789 q_data->height = f->fmt.pix.height;
790 q_data->bytesperline = f->fmt.pix.bytesperline;
791 q_data->sizeimage = f->fmt.pix.sizeimage;
792 if (r) {
793 q_data->rect = *r;
794 } else {
795 q_data->rect.left = 0;
796 q_data->rect.top = 0;
797 q_data->rect.width = f->fmt.pix.width;
798 q_data->rect.height = f->fmt.pix.height;
799 }
800
801 switch (f->fmt.pix.pixelformat) {
802 case V4L2_PIX_FMT_YUYV:
803 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
804 break;
805 case V4L2_PIX_FMT_NV12:
806 if (!disable_tiling && ctx->use_bit &&
807 ctx->dev->devtype->product == CODA_960) {
808 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
809 break;
810 }
811 fallthrough;
812 case V4L2_PIX_FMT_YUV420:
813 case V4L2_PIX_FMT_YVU420:
814 case V4L2_PIX_FMT_YUV422P:
815 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
816 break;
817 default:
818 break;
819 }
820
821 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
822 !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
823 ctx->use_vdoa)
824 vdoa_context_configure(ctx->vdoa,
825 round_up(f->fmt.pix.width, 16),
826 f->fmt.pix.height,
827 f->fmt.pix.pixelformat);
828 else
829 ctx->use_vdoa = false;
830
831 coda_dbg(1, ctx, "Setting %s format, wxh: %dx%d, fmt: %4.4s %c\n",
832 v4l2_type_names[f->type], q_data->width, q_data->height,
833 (char *)&q_data->fourcc,
834 (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
835
836 return 0;
837 }
838
839 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
840 struct v4l2_format *f)
841 {
842 struct coda_ctx *ctx = fh_to_ctx(priv);
843 struct coda_q_data *q_data_src;
844 const struct coda_codec *codec;
845 struct v4l2_rect r;
846 int ret;
847
848 ret = coda_try_fmt_vid_cap(file, priv, f);
849 if (ret)
850 return ret;
851
852 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
853 r.left = 0;
854 r.top = 0;
855 r.width = q_data_src->width;
856 r.height = q_data_src->height;
857
858 ret = coda_s_fmt(ctx, f, &r);
859 if (ret)
860 return ret;
861
862 if (ctx->inst_type != CODA_INST_ENCODER)
863 return 0;
864
865 /* Setting the coded format determines the selected codec */
866 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
867 f->fmt.pix.pixelformat);
868 if (!codec) {
869 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
870 return -EINVAL;
871 }
872 ctx->codec = codec;
873
874 ctx->colorspace = f->fmt.pix.colorspace;
875 ctx->xfer_func = f->fmt.pix.xfer_func;
876 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
877 ctx->quantization = f->fmt.pix.quantization;
878
879 return 0;
880 }
881
882 static int coda_s_fmt_vid_out(struct file *file, void *priv,
883 struct v4l2_format *f)
884 {
885 struct coda_ctx *ctx = fh_to_ctx(priv);
886 const struct coda_codec *codec;
887 struct v4l2_format f_cap;
888 struct vb2_queue *dst_vq;
889 int ret;
890
891 ret = coda_try_fmt_vid_out(file, priv, f);
892 if (ret)
893 return ret;
894
895 ret = coda_s_fmt(ctx, f, NULL);
896 if (ret)
897 return ret;
898
899 ctx->colorspace = f->fmt.pix.colorspace;
900 ctx->xfer_func = f->fmt.pix.xfer_func;
901 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
902 ctx->quantization = f->fmt.pix.quantization;
903
904 if (ctx->inst_type != CODA_INST_DECODER)
905 return 0;
906
907 /* Setting the coded format determines the selected codec */
908 codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
909 V4L2_PIX_FMT_YUV420);
910 if (!codec) {
911 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
912 return -EINVAL;
913 }
914 ctx->codec = codec;
915
916 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
917 if (!dst_vq)
918 return -EINVAL;
919
920 /*
921 * Setting the capture queue format is not possible while the capture
922 * queue is still busy. This is not an error, but the user will have to
923 * make sure themselves that the capture format is set correctly before
924 * starting the output queue again.
925 */
926 if (vb2_is_busy(dst_vq))
927 return 0;
928
929 memset(&f_cap, 0, sizeof(f_cap));
930 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
931 coda_g_fmt(file, priv, &f_cap);
932 f_cap.fmt.pix.width = f->fmt.pix.width;
933 f_cap.fmt.pix.height = f->fmt.pix.height;
934
935 return coda_s_fmt_vid_cap(file, priv, &f_cap);
936 }
937
938 static int coda_reqbufs(struct file *file, void *priv,
939 struct v4l2_requestbuffers *rb)
940 {
941 struct coda_ctx *ctx = fh_to_ctx(priv);
942 int ret;
943
944 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
945 if (ret)
946 return ret;
947
948 /*
949 * Allow to allocate instance specific per-context buffers, such as
950 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
951 */
952 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
953 return ctx->ops->reqbufs(ctx, rb);
954
955 return 0;
956 }
957
958 static int coda_qbuf(struct file *file, void *priv,
959 struct v4l2_buffer *buf)
960 {
961 struct coda_ctx *ctx = fh_to_ctx(priv);
962
963 if (ctx->inst_type == CODA_INST_DECODER &&
964 buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
965 buf->flags &= ~V4L2_BUF_FLAG_LAST;
966
967 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
968 }
969
970 static int coda_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
971 {
972 struct coda_ctx *ctx = fh_to_ctx(priv);
973 int ret;
974
975 ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
976
977 if (ctx->inst_type == CODA_INST_DECODER &&
978 buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
979 buf->flags &= ~V4L2_BUF_FLAG_LAST;
980
981 return ret;
982 }
983
984 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
985 enum vb2_buffer_state state)
986 {
987 const struct v4l2_event eos_event = {
988 .type = V4L2_EVENT_EOS
989 };
990
991 if (buf->flags & V4L2_BUF_FLAG_LAST)
992 v4l2_event_queue_fh(&ctx->fh, &eos_event);
993
994 v4l2_m2m_buf_done(buf, state);
995 }
996
997 static int coda_g_selection(struct file *file, void *fh,
998 struct v4l2_selection *s)
999 {
1000 struct coda_ctx *ctx = fh_to_ctx(fh);
1001 struct coda_q_data *q_data;
1002 struct v4l2_rect r, *rsel;
1003
1004 q_data = get_q_data(ctx, s->type);
1005 if (!q_data)
1006 return -EINVAL;
1007
1008 r.left = 0;
1009 r.top = 0;
1010 r.width = q_data->width;
1011 r.height = q_data->height;
1012 rsel = &q_data->rect;
1013
1014 switch (s->target) {
1015 case V4L2_SEL_TGT_CROP_DEFAULT:
1016 case V4L2_SEL_TGT_CROP_BOUNDS:
1017 rsel = &r;
1018 fallthrough;
1019 case V4L2_SEL_TGT_CROP:
1020 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT ||
1021 ctx->inst_type == CODA_INST_DECODER)
1022 return -EINVAL;
1023 break;
1024 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1025 case V4L2_SEL_TGT_COMPOSE_PADDED:
1026 rsel = &r;
1027 fallthrough;
1028 case V4L2_SEL_TGT_COMPOSE:
1029 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
1030 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1031 ctx->inst_type == CODA_INST_ENCODER)
1032 return -EINVAL;
1033 break;
1034 default:
1035 return -EINVAL;
1036 }
1037
1038 s->r = *rsel;
1039
1040 return 0;
1041 }
1042
1043 static int coda_s_selection(struct file *file, void *fh,
1044 struct v4l2_selection *s)
1045 {
1046 struct coda_ctx *ctx = fh_to_ctx(fh);
1047 struct coda_q_data *q_data;
1048
1049 switch (s->target) {
1050 case V4L2_SEL_TGT_CROP:
1051 if (ctx->inst_type == CODA_INST_ENCODER &&
1052 s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1053 q_data = get_q_data(ctx, s->type);
1054 if (!q_data)
1055 return -EINVAL;
1056
1057 s->r.left = 0;
1058 s->r.top = 0;
1059 s->r.width = clamp(s->r.width, 2U, q_data->width);
1060 s->r.height = clamp(s->r.height, 2U, q_data->height);
1061
1062 if (s->flags & V4L2_SEL_FLAG_LE) {
1063 s->r.width = round_up(s->r.width, 2);
1064 s->r.height = round_up(s->r.height, 2);
1065 } else {
1066 s->r.width = round_down(s->r.width, 2);
1067 s->r.height = round_down(s->r.height, 2);
1068 }
1069
1070 q_data->rect = s->r;
1071
1072 coda_dbg(1, ctx, "Setting crop rectangle: %dx%d\n",
1073 s->r.width, s->r.height);
1074
1075 return 0;
1076 }
1077 fallthrough;
1078 case V4L2_SEL_TGT_NATIVE_SIZE:
1079 case V4L2_SEL_TGT_COMPOSE:
1080 return coda_g_selection(file, fh, s);
1081 default:
1082 /* v4l2-compliance expects this to fail for read-only targets */
1083 return -EINVAL;
1084 }
1085 }
1086
1087 static int coda_try_encoder_cmd(struct file *file, void *fh,
1088 struct v4l2_encoder_cmd *ec)
1089 {
1090 struct coda_ctx *ctx = fh_to_ctx(fh);
1091
1092 if (ctx->inst_type != CODA_INST_ENCODER)
1093 return -ENOTTY;
1094
1095 return v4l2_m2m_ioctl_try_encoder_cmd(file, fh, ec);
1096 }
1097
1098 static void coda_wake_up_capture_queue(struct coda_ctx *ctx)
1099 {
1100 struct vb2_queue *dst_vq;
1101
1102 coda_dbg(1, ctx, "waking up capture queue\n");
1103
1104 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1105 dst_vq->last_buffer_dequeued = true;
1106 wake_up(&dst_vq->done_wq);
1107 }
1108
1109 static int coda_encoder_cmd(struct file *file, void *fh,
1110 struct v4l2_encoder_cmd *ec)
1111 {
1112 struct coda_ctx *ctx = fh_to_ctx(fh);
1113 struct vb2_v4l2_buffer *buf;
1114 int ret;
1115
1116 ret = coda_try_encoder_cmd(file, fh, ec);
1117 if (ret < 0)
1118 return ret;
1119
1120 mutex_lock(&ctx->wakeup_mutex);
1121 buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1122 if (buf) {
1123 /*
1124 * If the last output buffer is still on the queue, make sure
1125 * that decoder finish_run will see the last flag and report it
1126 * to userspace.
1127 */
1128 buf->flags |= V4L2_BUF_FLAG_LAST;
1129 } else {
1130 /* Set the stream-end flag on this context */
1131 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1132
1133 /*
1134 * If the last output buffer has already been taken from the
1135 * queue, wake up the capture queue and signal end of stream
1136 * via the -EPIPE mechanism.
1137 */
1138 coda_wake_up_capture_queue(ctx);
1139 }
1140 mutex_unlock(&ctx->wakeup_mutex);
1141
1142 return 0;
1143 }
1144
1145 static int coda_try_decoder_cmd(struct file *file, void *fh,
1146 struct v4l2_decoder_cmd *dc)
1147 {
1148 struct coda_ctx *ctx = fh_to_ctx(fh);
1149
1150 if (ctx->inst_type != CODA_INST_DECODER)
1151 return -ENOTTY;
1152
1153 return v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc);
1154 }
1155
1156 static bool coda_mark_last_meta(struct coda_ctx *ctx)
1157 {
1158 struct coda_buffer_meta *meta;
1159
1160 coda_dbg(1, ctx, "marking last meta\n");
1161
1162 spin_lock(&ctx->buffer_meta_lock);
1163 if (list_empty(&ctx->buffer_meta_list)) {
1164 spin_unlock(&ctx->buffer_meta_lock);
1165 return false;
1166 }
1167
1168 meta = list_last_entry(&ctx->buffer_meta_list, struct coda_buffer_meta,
1169 list);
1170 meta->last = true;
1171
1172 spin_unlock(&ctx->buffer_meta_lock);
1173 return true;
1174 }
1175
1176 static bool coda_mark_last_dst_buf(struct coda_ctx *ctx)
1177 {
1178 struct vb2_v4l2_buffer *buf;
1179 struct vb2_buffer *dst_vb;
1180 struct vb2_queue *dst_vq;
1181 unsigned long flags;
1182
1183 coda_dbg(1, ctx, "marking last capture buffer\n");
1184
1185 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1186 spin_lock_irqsave(&dst_vq->done_lock, flags);
1187 if (list_empty(&dst_vq->done_list)) {
1188 spin_unlock_irqrestore(&dst_vq->done_lock, flags);
1189 return false;
1190 }
1191
1192 dst_vb = list_last_entry(&dst_vq->done_list, struct vb2_buffer,
1193 done_entry);
1194 buf = to_vb2_v4l2_buffer(dst_vb);
1195 buf->flags |= V4L2_BUF_FLAG_LAST;
1196
1197 spin_unlock_irqrestore(&dst_vq->done_lock, flags);
1198 return true;
1199 }
1200
1201 static int coda_decoder_cmd(struct file *file, void *fh,
1202 struct v4l2_decoder_cmd *dc)
1203 {
1204 struct coda_ctx *ctx = fh_to_ctx(fh);
1205 struct coda_dev *dev = ctx->dev;
1206 struct vb2_v4l2_buffer *buf;
1207 struct vb2_queue *dst_vq;
1208 bool stream_end;
1209 bool wakeup;
1210 int ret;
1211
1212 ret = coda_try_decoder_cmd(file, fh, dc);
1213 if (ret < 0)
1214 return ret;
1215
1216 switch (dc->cmd) {
1217 case V4L2_DEC_CMD_START:
1218 mutex_lock(&dev->coda_mutex);
1219 mutex_lock(&ctx->bitstream_mutex);
1220 coda_bitstream_flush(ctx);
1221 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
1222 V4L2_BUF_TYPE_VIDEO_CAPTURE);
1223 vb2_clear_last_buffer_dequeued(dst_vq);
1224 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1225 coda_fill_bitstream(ctx, NULL);
1226 mutex_unlock(&ctx->bitstream_mutex);
1227 mutex_unlock(&dev->coda_mutex);
1228 break;
1229 case V4L2_DEC_CMD_STOP:
1230 stream_end = false;
1231 wakeup = false;
1232
1233 mutex_lock(&ctx->wakeup_mutex);
1234
1235 buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1236 if (buf) {
1237 coda_dbg(1, ctx, "marking last pending buffer\n");
1238
1239 /* Mark last buffer */
1240 buf->flags |= V4L2_BUF_FLAG_LAST;
1241
1242 if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) == 0) {
1243 coda_dbg(1, ctx, "all remaining buffers queued\n");
1244 stream_end = true;
1245 }
1246 } else {
1247 if (ctx->use_bit)
1248 if (coda_mark_last_meta(ctx))
1249 stream_end = true;
1250 else
1251 wakeup = true;
1252 else
1253 if (!coda_mark_last_dst_buf(ctx))
1254 wakeup = true;
1255 }
1256
1257 if (stream_end) {
1258 coda_dbg(1, ctx, "all remaining buffers queued\n");
1259
1260 /* Set the stream-end flag on this context */
1261 coda_bit_stream_end_flag(ctx);
1262 ctx->hold = false;
1263 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
1264 }
1265
1266 if (wakeup) {
1267 /* If there is no buffer in flight, wake up */
1268 coda_wake_up_capture_queue(ctx);
1269 }
1270
1271 mutex_unlock(&ctx->wakeup_mutex);
1272 break;
1273 default:
1274 return -EINVAL;
1275 }
1276
1277 return 0;
1278 }
1279
1280 static int coda_enum_framesizes(struct file *file, void *fh,
1281 struct v4l2_frmsizeenum *fsize)
1282 {
1283 struct coda_ctx *ctx = fh_to_ctx(fh);
1284 struct coda_q_data *q_data_dst;
1285 const struct coda_codec *codec;
1286
1287 if (ctx->inst_type != CODA_INST_ENCODER)
1288 return -ENOTTY;
1289
1290 if (fsize->index)
1291 return -EINVAL;
1292
1293 if (coda_format_normalize_yuv(fsize->pixel_format) ==
1294 V4L2_PIX_FMT_YUV420) {
1295 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1296 codec = coda_find_codec(ctx->dev, fsize->pixel_format,
1297 q_data_dst->fourcc);
1298 } else {
1299 codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
1300 fsize->pixel_format);
1301 }
1302 if (!codec)
1303 return -EINVAL;
1304
1305 fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
1306 fsize->stepwise.min_width = MIN_W;
1307 fsize->stepwise.max_width = codec->max_w;
1308 fsize->stepwise.step_width = 1;
1309 fsize->stepwise.min_height = MIN_H;
1310 fsize->stepwise.max_height = codec->max_h;
1311 fsize->stepwise.step_height = 1;
1312
1313 return 0;
1314 }
1315
1316 static int coda_enum_frameintervals(struct file *file, void *fh,
1317 struct v4l2_frmivalenum *f)
1318 {
1319 struct coda_ctx *ctx = fh_to_ctx(fh);
1320 int i;
1321
1322 if (f->index)
1323 return -EINVAL;
1324
1325 /* Disallow YUYV if the vdoa is not available */
1326 if (!ctx->vdoa && f->pixel_format == V4L2_PIX_FMT_YUYV)
1327 return -EINVAL;
1328
1329 for (i = 0; i < CODA_MAX_FORMATS; i++) {
1330 if (f->pixel_format == ctx->cvd->src_formats[i] ||
1331 f->pixel_format == ctx->cvd->dst_formats[i])
1332 break;
1333 }
1334 if (i == CODA_MAX_FORMATS)
1335 return -EINVAL;
1336
1337 f->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
1338 f->stepwise.min.numerator = 1;
1339 f->stepwise.min.denominator = 65535;
1340 f->stepwise.max.numerator = 65536;
1341 f->stepwise.max.denominator = 1;
1342 f->stepwise.step.numerator = 1;
1343 f->stepwise.step.denominator = 1;
1344
1345 return 0;
1346 }
1347
1348 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1349 {
1350 struct coda_ctx *ctx = fh_to_ctx(fh);
1351 struct v4l2_fract *tpf;
1352
1353 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1354 return -EINVAL;
1355
1356 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1357 tpf = &a->parm.output.timeperframe;
1358 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
1359 tpf->numerator = 1 + (ctx->params.framerate >>
1360 CODA_FRATE_DIV_OFFSET);
1361
1362 return 0;
1363 }
1364
1365 /*
1366 * Approximate timeperframe v4l2_fract with values that can be written
1367 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1368 */
1369 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1370 {
1371 struct v4l2_fract s = *timeperframe;
1372 struct v4l2_fract f0;
1373 struct v4l2_fract f1 = { 1, 0 };
1374 struct v4l2_fract f2 = { 0, 1 };
1375 unsigned int i, div, s_denominator;
1376
1377 /* Lower bound is 1/65535 */
1378 if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1379 timeperframe->numerator = 1;
1380 timeperframe->denominator = 65535;
1381 return;
1382 }
1383
1384 /* Upper bound is 65536/1 */
1385 if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1386 timeperframe->numerator = 65536;
1387 timeperframe->denominator = 1;
1388 return;
1389 }
1390
1391 /* Reduce fraction to lowest terms */
1392 div = gcd(s.numerator, s.denominator);
1393 if (div > 1) {
1394 s.numerator /= div;
1395 s.denominator /= div;
1396 }
1397
1398 if (s.numerator <= 65536 && s.denominator < 65536) {
1399 *timeperframe = s;
1400 return;
1401 }
1402
1403 /* Find successive convergents from continued fraction expansion */
1404 while (f2.numerator <= 65536 && f2.denominator < 65536) {
1405 f0 = f1;
1406 f1 = f2;
1407
1408 /* Stop when f2 exactly equals timeperframe */
1409 if (s.numerator == 0)
1410 break;
1411
1412 i = s.denominator / s.numerator;
1413
1414 f2.numerator = f0.numerator + i * f1.numerator;
1415 f2.denominator = f0.denominator + i * f2.denominator;
1416
1417 s_denominator = s.numerator;
1418 s.numerator = s.denominator % s.numerator;
1419 s.denominator = s_denominator;
1420 }
1421
1422 *timeperframe = f1;
1423 }
1424
1425 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1426 {
1427 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1428 timeperframe->denominator;
1429 }
1430
1431 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1432 {
1433 struct coda_ctx *ctx = fh_to_ctx(fh);
1434 struct v4l2_fract *tpf;
1435
1436 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1437 return -EINVAL;
1438
1439 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1440 tpf = &a->parm.output.timeperframe;
1441 coda_approximate_timeperframe(tpf);
1442 ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1443 ctx->params.framerate_changed = true;
1444
1445 return 0;
1446 }
1447
1448 static int coda_subscribe_event(struct v4l2_fh *fh,
1449 const struct v4l2_event_subscription *sub)
1450 {
1451 struct coda_ctx *ctx = fh_to_ctx(fh);
1452
1453 switch (sub->type) {
1454 case V4L2_EVENT_EOS:
1455 return v4l2_event_subscribe(fh, sub, 0, NULL);
1456 case V4L2_EVENT_SOURCE_CHANGE:
1457 if (ctx->inst_type == CODA_INST_DECODER)
1458 return v4l2_event_subscribe(fh, sub, 0, NULL);
1459 else
1460 return -EINVAL;
1461 default:
1462 return v4l2_ctrl_subscribe_event(fh, sub);
1463 }
1464 }
1465
1466 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1467 .vidioc_querycap = coda_querycap,
1468
1469 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1470 .vidioc_g_fmt_vid_cap = coda_g_fmt,
1471 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1472 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
1473
1474 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1475 .vidioc_g_fmt_vid_out = coda_g_fmt,
1476 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1477 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
1478
1479 .vidioc_reqbufs = coda_reqbufs,
1480 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1481
1482 .vidioc_qbuf = coda_qbuf,
1483 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1484 .vidioc_dqbuf = coda_dqbuf,
1485 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1486 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
1487
1488 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
1489 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1490
1491 .vidioc_g_selection = coda_g_selection,
1492 .vidioc_s_selection = coda_s_selection,
1493
1494 .vidioc_try_encoder_cmd = coda_try_encoder_cmd,
1495 .vidioc_encoder_cmd = coda_encoder_cmd,
1496 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
1497 .vidioc_decoder_cmd = coda_decoder_cmd,
1498
1499 .vidioc_g_parm = coda_g_parm,
1500 .vidioc_s_parm = coda_s_parm,
1501
1502 .vidioc_enum_framesizes = coda_enum_framesizes,
1503 .vidioc_enum_frameintervals = coda_enum_frameintervals,
1504
1505 .vidioc_subscribe_event = coda_subscribe_event,
1506 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1507 };
1508
1509 /*
1510 * Mem-to-mem operations.
1511 */
1512
1513 static void coda_device_run(void *m2m_priv)
1514 {
1515 struct coda_ctx *ctx = m2m_priv;
1516 struct coda_dev *dev = ctx->dev;
1517
1518 queue_work(dev->workqueue, &ctx->pic_run_work);
1519 }
1520
1521 static void coda_pic_run_work(struct work_struct *work)
1522 {
1523 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1524 struct coda_dev *dev = ctx->dev;
1525 int ret;
1526
1527 mutex_lock(&ctx->buffer_mutex);
1528 mutex_lock(&dev->coda_mutex);
1529
1530 ret = ctx->ops->prepare_run(ctx);
1531 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
1532 mutex_unlock(&dev->coda_mutex);
1533 mutex_unlock(&ctx->buffer_mutex);
1534 /* job_finish scheduled by prepare_decode */
1535 return;
1536 }
1537
1538 if (!wait_for_completion_timeout(&ctx->completion,
1539 msecs_to_jiffies(1000))) {
1540 if (ctx->use_bit) {
1541 dev_err(dev->dev, "CODA PIC_RUN timeout\n");
1542
1543 ctx->hold = true;
1544
1545 coda_hw_reset(ctx);
1546 }
1547
1548 if (ctx->ops->run_timeout)
1549 ctx->ops->run_timeout(ctx);
1550 } else {
1551 ctx->ops->finish_run(ctx);
1552 }
1553
1554 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1555 ctx->ops->seq_end_work)
1556 queue_work(dev->workqueue, &ctx->seq_end_work);
1557
1558 mutex_unlock(&dev->coda_mutex);
1559 mutex_unlock(&ctx->buffer_mutex);
1560
1561 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1562 }
1563
1564 static int coda_job_ready(void *m2m_priv)
1565 {
1566 struct coda_ctx *ctx = m2m_priv;
1567 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1568
1569 /*
1570 * For both 'P' and 'key' frame cases 1 picture
1571 * and 1 frame are needed. In the decoder case,
1572 * the compressed frame can be in the bitstream.
1573 */
1574 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1575 coda_dbg(1, ctx, "not ready: not enough vid-out buffers.\n");
1576 return 0;
1577 }
1578
1579 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1580 coda_dbg(1, ctx, "not ready: not enough vid-cap buffers.\n");
1581 return 0;
1582 }
1583
1584 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1585 bool stream_end = ctx->bit_stream_param &
1586 CODA_BIT_STREAM_END_FLAG;
1587 int num_metas = ctx->num_metas;
1588 struct coda_buffer_meta *meta;
1589 unsigned int count;
1590
1591 count = hweight32(ctx->frm_dis_flg);
1592 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1593 coda_dbg(1, ctx,
1594 "not ready: all internal buffers in use: %d/%d (0x%x)",
1595 count, ctx->num_internal_frames,
1596 ctx->frm_dis_flg);
1597 return 0;
1598 }
1599
1600 if (ctx->hold && !src_bufs) {
1601 coda_dbg(1, ctx,
1602 "not ready: on hold for more buffers.\n");
1603 return 0;
1604 }
1605
1606 if (!stream_end && (num_metas + src_bufs) < 2) {
1607 coda_dbg(1, ctx,
1608 "not ready: need 2 buffers available (queue:%d + bitstream:%d)\n",
1609 num_metas, src_bufs);
1610 return 0;
1611 }
1612
1613 meta = list_first_entry(&ctx->buffer_meta_list,
1614 struct coda_buffer_meta, list);
1615 if (!coda_bitstream_can_fetch_past(ctx, meta->end) &&
1616 !stream_end) {
1617 coda_dbg(1, ctx,
1618 "not ready: not enough bitstream data to read past %u (%u)\n",
1619 meta->end, ctx->bitstream_fifo.kfifo.in);
1620 return 0;
1621 }
1622 }
1623
1624 if (ctx->aborting) {
1625 coda_dbg(1, ctx, "not ready: aborting\n");
1626 return 0;
1627 }
1628
1629 coda_dbg(2, ctx, "job ready\n");
1630
1631 return 1;
1632 }
1633
1634 static void coda_job_abort(void *priv)
1635 {
1636 struct coda_ctx *ctx = priv;
1637
1638 ctx->aborting = 1;
1639
1640 coda_dbg(1, ctx, "job abort\n");
1641 }
1642
1643 static const struct v4l2_m2m_ops coda_m2m_ops = {
1644 .device_run = coda_device_run,
1645 .job_ready = coda_job_ready,
1646 .job_abort = coda_job_abort,
1647 };
1648
1649 static void set_default_params(struct coda_ctx *ctx)
1650 {
1651 unsigned int max_w, max_h, usize, csize;
1652
1653 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1654 ctx->cvd->dst_formats[0]);
1655 max_w = min(ctx->codec->max_w, 1920U);
1656 max_h = min(ctx->codec->max_h, 1088U);
1657 usize = max_w * max_h * 3 / 2;
1658 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1659
1660 ctx->params.codec_mode = ctx->codec->mode;
1661 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
1662 ctx->colorspace = V4L2_COLORSPACE_JPEG;
1663 else
1664 ctx->colorspace = V4L2_COLORSPACE_REC709;
1665 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1666 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1667 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1668 ctx->params.framerate = 30;
1669
1670 /* Default formats for output and input queues */
1671 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1672 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1673 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1674 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1675 ctx->q_data[V4L2_M2M_DST].width = max_w;
1676 ctx->q_data[V4L2_M2M_DST].height = max_h;
1677 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1678 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1679 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1680 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1681 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1682 } else {
1683 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1684 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1685 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1686 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1687 }
1688 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1689 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1690 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1691 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1692
1693 /*
1694 * Since the RBC2AXI logic only supports a single chroma plane,
1695 * macroblock tiling only works for to NV12 pixel format.
1696 */
1697 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1698 }
1699
1700 /*
1701 * Queue operations
1702 */
1703 static int coda_queue_setup(struct vb2_queue *vq,
1704 unsigned int *nbuffers, unsigned int *nplanes,
1705 unsigned int sizes[], struct device *alloc_devs[])
1706 {
1707 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1708 struct coda_q_data *q_data;
1709 unsigned int size;
1710
1711 q_data = get_q_data(ctx, vq->type);
1712 size = q_data->sizeimage;
1713
1714 if (*nplanes)
1715 return sizes[0] < size ? -EINVAL : 0;
1716
1717 *nplanes = 1;
1718 sizes[0] = size;
1719
1720 coda_dbg(1, ctx, "get %d buffer(s) of size %d each.\n", *nbuffers,
1721 size);
1722
1723 return 0;
1724 }
1725
1726 static int coda_buf_prepare(struct vb2_buffer *vb)
1727 {
1728 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1729 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1730 struct coda_q_data *q_data;
1731
1732 q_data = get_q_data(ctx, vb->vb2_queue->type);
1733 if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
1734 if (vbuf->field == V4L2_FIELD_ANY)
1735 vbuf->field = V4L2_FIELD_NONE;
1736 if (vbuf->field != V4L2_FIELD_NONE) {
1737 v4l2_warn(&ctx->dev->v4l2_dev,
1738 "%s field isn't supported\n", __func__);
1739 return -EINVAL;
1740 }
1741 }
1742
1743 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1744 v4l2_warn(&ctx->dev->v4l2_dev,
1745 "%s data will not fit into plane (%lu < %lu)\n",
1746 __func__, vb2_plane_size(vb, 0),
1747 (long)q_data->sizeimage);
1748 return -EINVAL;
1749 }
1750
1751 return 0;
1752 }
1753
1754 static void coda_update_menu_ctrl(struct v4l2_ctrl *ctrl, int value)
1755 {
1756 if (!ctrl)
1757 return;
1758
1759 v4l2_ctrl_lock(ctrl);
1760
1761 /*
1762 * Extend the control range if the parsed stream contains a known but
1763 * unsupported value or level.
1764 */
1765 if (value > ctrl->maximum) {
1766 __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, value,
1767 ctrl->menu_skip_mask & ~(1 << value),
1768 ctrl->default_value);
1769 } else if (value < ctrl->minimum) {
1770 __v4l2_ctrl_modify_range(ctrl, value, ctrl->maximum,
1771 ctrl->menu_skip_mask & ~(1 << value),
1772 ctrl->default_value);
1773 }
1774
1775 __v4l2_ctrl_s_ctrl(ctrl, value);
1776
1777 v4l2_ctrl_unlock(ctrl);
1778 }
1779
1780 void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
1781 u8 level_idc)
1782 {
1783 const char * const *profile_names;
1784 const char * const *level_names;
1785 struct v4l2_ctrl *profile_ctrl;
1786 struct v4l2_ctrl *level_ctrl;
1787 const char *codec_name;
1788 u32 profile_cid;
1789 u32 level_cid;
1790 int profile;
1791 int level;
1792
1793 switch (ctx->codec->src_fourcc) {
1794 case V4L2_PIX_FMT_H264:
1795 codec_name = "H264";
1796 profile_cid = V4L2_CID_MPEG_VIDEO_H264_PROFILE;
1797 level_cid = V4L2_CID_MPEG_VIDEO_H264_LEVEL;
1798 profile_ctrl = ctx->h264_profile_ctrl;
1799 level_ctrl = ctx->h264_level_ctrl;
1800 profile = coda_h264_profile(profile_idc);
1801 level = coda_h264_level(level_idc);
1802 break;
1803 case V4L2_PIX_FMT_MPEG2:
1804 codec_name = "MPEG-2";
1805 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE;
1806 level_cid = V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL;
1807 profile_ctrl = ctx->mpeg2_profile_ctrl;
1808 level_ctrl = ctx->mpeg2_level_ctrl;
1809 profile = coda_mpeg2_profile(profile_idc);
1810 level = coda_mpeg2_level(level_idc);
1811 break;
1812 case V4L2_PIX_FMT_MPEG4:
1813 codec_name = "MPEG-4";
1814 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE;
1815 level_cid = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL;
1816 profile_ctrl = ctx->mpeg4_profile_ctrl;
1817 level_ctrl = ctx->mpeg4_level_ctrl;
1818 profile = coda_mpeg4_profile(profile_idc);
1819 level = coda_mpeg4_level(level_idc);
1820 break;
1821 default:
1822 return;
1823 }
1824
1825 profile_names = v4l2_ctrl_get_menu(profile_cid);
1826 level_names = v4l2_ctrl_get_menu(level_cid);
1827
1828 if (profile < 0) {
1829 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s profile: %u\n",
1830 codec_name, profile_idc);
1831 } else {
1832 coda_dbg(1, ctx, "Parsed %s profile: %s\n", codec_name,
1833 profile_names[profile]);
1834 coda_update_menu_ctrl(profile_ctrl, profile);
1835 }
1836
1837 if (level < 0) {
1838 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s level: %u\n",
1839 codec_name, level_idc);
1840 } else {
1841 coda_dbg(1, ctx, "Parsed %s level: %s\n", codec_name,
1842 level_names[level]);
1843 coda_update_menu_ctrl(level_ctrl, level);
1844 }
1845 }
1846
1847 static void coda_queue_source_change_event(struct coda_ctx *ctx)
1848 {
1849 static const struct v4l2_event source_change_event = {
1850 .type = V4L2_EVENT_SOURCE_CHANGE,
1851 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
1852 };
1853
1854 v4l2_event_queue_fh(&ctx->fh, &source_change_event);
1855 }
1856
1857 static void coda_buf_queue(struct vb2_buffer *vb)
1858 {
1859 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1860 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1861 struct vb2_queue *vq = vb->vb2_queue;
1862 struct coda_q_data *q_data;
1863
1864 q_data = get_q_data(ctx, vb->vb2_queue->type);
1865
1866 /*
1867 * In the decoder case, immediately try to copy the buffer into the
1868 * bitstream ringbuffer and mark it as ready to be dequeued.
1869 */
1870 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1871 /*
1872 * For backwards compatibility, queuing an empty buffer marks
1873 * the stream end
1874 */
1875 if (vb2_get_plane_payload(vb, 0) == 0)
1876 coda_bit_stream_end_flag(ctx);
1877
1878 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1879 /*
1880 * Unless already done, try to obtain profile_idc and
1881 * level_idc from the SPS header. This allows to decide
1882 * whether to enable reordering during sequence
1883 * initialization.
1884 */
1885 if (!ctx->params.h264_profile_idc) {
1886 coda_sps_parse_profile(ctx, vb);
1887 coda_update_profile_level_ctrls(ctx,
1888 ctx->params.h264_profile_idc,
1889 ctx->params.h264_level_idc);
1890 }
1891 }
1892
1893 mutex_lock(&ctx->bitstream_mutex);
1894 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1895 if (vb2_is_streaming(vb->vb2_queue))
1896 /* This set buf->sequence = ctx->qsequence++ */
1897 coda_fill_bitstream(ctx, NULL);
1898 mutex_unlock(&ctx->bitstream_mutex);
1899
1900 if (!ctx->initialized) {
1901 /*
1902 * Run sequence initialization in case the queued
1903 * buffer contained headers.
1904 */
1905 if (vb2_is_streaming(vb->vb2_queue) &&
1906 ctx->ops->seq_init_work) {
1907 queue_work(ctx->dev->workqueue,
1908 &ctx->seq_init_work);
1909 flush_work(&ctx->seq_init_work);
1910 }
1911
1912 if (ctx->initialized)
1913 coda_queue_source_change_event(ctx);
1914 }
1915 } else {
1916 if ((ctx->inst_type == CODA_INST_ENCODER || !ctx->use_bit) &&
1917 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1918 vbuf->sequence = ctx->qsequence++;
1919 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1920 }
1921 }
1922
1923 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1924 size_t size, const char *name, struct dentry *parent)
1925 {
1926 buf->vaddr = dma_alloc_coherent(dev->dev, size, &buf->paddr,
1927 GFP_KERNEL);
1928 if (!buf->vaddr) {
1929 v4l2_err(&dev->v4l2_dev,
1930 "Failed to allocate %s buffer of size %zu\n",
1931 name, size);
1932 return -ENOMEM;
1933 }
1934
1935 buf->size = size;
1936
1937 if (name && parent) {
1938 buf->blob.data = buf->vaddr;
1939 buf->blob.size = size;
1940 buf->dentry = debugfs_create_blob(name, 0444, parent,
1941 &buf->blob);
1942 }
1943
1944 return 0;
1945 }
1946
1947 void coda_free_aux_buf(struct coda_dev *dev,
1948 struct coda_aux_buf *buf)
1949 {
1950 if (buf->vaddr) {
1951 dma_free_coherent(dev->dev, buf->size, buf->vaddr, buf->paddr);
1952 buf->vaddr = NULL;
1953 buf->size = 0;
1954 debugfs_remove(buf->dentry);
1955 buf->dentry = NULL;
1956 }
1957 }
1958
1959 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1960 {
1961 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1962 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1963 struct coda_q_data *q_data_src, *q_data_dst;
1964 struct v4l2_m2m_buffer *m2m_buf, *tmp;
1965 struct vb2_v4l2_buffer *buf;
1966 struct list_head list;
1967 int ret = 0;
1968
1969 if (count < 1)
1970 return -EINVAL;
1971
1972 coda_dbg(1, ctx, "start streaming %s\n", v4l2_type_names[q->type]);
1973
1974 INIT_LIST_HEAD(&list);
1975
1976 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1977 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1978 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1979 /* copy the buffers that were queued before streamon */
1980 mutex_lock(&ctx->bitstream_mutex);
1981 coda_fill_bitstream(ctx, &list);
1982 mutex_unlock(&ctx->bitstream_mutex);
1983
1984 if (ctx->dev->devtype->product != CODA_960 &&
1985 coda_get_bitstream_payload(ctx) < 512) {
1986 v4l2_err(v4l2_dev, "start payload < 512\n");
1987 ret = -EINVAL;
1988 goto err;
1989 }
1990
1991 if (!ctx->initialized) {
1992 /* Run sequence initialization */
1993 if (ctx->ops->seq_init_work) {
1994 queue_work(ctx->dev->workqueue,
1995 &ctx->seq_init_work);
1996 flush_work(&ctx->seq_init_work);
1997 }
1998 }
1999 }
2000
2001 /*
2002 * Check the first input JPEG buffer to determine chroma
2003 * subsampling.
2004 */
2005 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG) {
2006 buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
2007 ret = coda_jpeg_decode_header(ctx, &buf->vb2_buf);
2008 if (ret < 0) {
2009 v4l2_err(v4l2_dev,
2010 "failed to decode JPEG header: %d\n",
2011 ret);
2012 goto err;
2013 }
2014
2015 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2016 q_data_dst->width = round_up(q_data_src->width, 16);
2017 q_data_dst->height = round_up(q_data_src->height, 16);
2018 q_data_dst->bytesperline = q_data_dst->width;
2019 if (ctx->params.jpeg_chroma_subsampling ==
2020 V4L2_JPEG_CHROMA_SUBSAMPLING_420) {
2021 q_data_dst->sizeimage =
2022 q_data_dst->bytesperline *
2023 q_data_dst->height * 3 / 2;
2024 if (q_data_dst->fourcc != V4L2_PIX_FMT_YUV420)
2025 q_data_dst->fourcc = V4L2_PIX_FMT_NV12;
2026 } else {
2027 q_data_dst->sizeimage =
2028 q_data_dst->bytesperline *
2029 q_data_dst->height * 2;
2030 q_data_dst->fourcc = V4L2_PIX_FMT_YUV422P;
2031 }
2032 q_data_dst->rect.left = 0;
2033 q_data_dst->rect.top = 0;
2034 q_data_dst->rect.width = q_data_src->width;
2035 q_data_dst->rect.height = q_data_src->height;
2036 }
2037 ctx->streamon_out = 1;
2038 } else {
2039 ctx->streamon_cap = 1;
2040 }
2041
2042 /* Don't start the coda unless both queues are on */
2043 if (!(ctx->streamon_out && ctx->streamon_cap))
2044 goto out;
2045
2046 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2047 if ((q_data_src->rect.width != q_data_dst->width &&
2048 round_up(q_data_src->rect.width, 16) != q_data_dst->width) ||
2049 (q_data_src->rect.height != q_data_dst->height &&
2050 round_up(q_data_src->rect.height, 16) != q_data_dst->height)) {
2051 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
2052 q_data_src->rect.width, q_data_src->rect.height,
2053 q_data_dst->width, q_data_dst->height);
2054 ret = -EINVAL;
2055 goto err;
2056 }
2057
2058 /* Allow BIT decoder device_run with no new buffers queued */
2059 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2060 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
2061
2062 ctx->gopcounter = ctx->params.gop_size - 1;
2063
2064 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
2065 ctx->params.gop_size = 1;
2066 ctx->gopcounter = ctx->params.gop_size - 1;
2067 /* Only decoders have this control */
2068 if (ctx->mb_err_cnt_ctrl)
2069 v4l2_ctrl_s_ctrl(ctx->mb_err_cnt_ctrl, 0);
2070
2071 ret = ctx->ops->start_streaming(ctx);
2072 if (ctx->inst_type == CODA_INST_DECODER) {
2073 if (ret == -EAGAIN)
2074 goto out;
2075 }
2076 if (ret < 0)
2077 goto err;
2078
2079 out:
2080 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
2081 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
2082 list_del(&m2m_buf->list);
2083 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
2084 }
2085 }
2086 return 0;
2087
2088 err:
2089 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
2090 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
2091 list_del(&m2m_buf->list);
2092 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
2093 }
2094 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
2095 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
2096 } else {
2097 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
2098 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
2099 }
2100 return ret;
2101 }
2102
2103 static void coda_stop_streaming(struct vb2_queue *q)
2104 {
2105 struct coda_ctx *ctx = vb2_get_drv_priv(q);
2106 struct coda_dev *dev = ctx->dev;
2107 struct vb2_v4l2_buffer *buf;
2108 bool stop;
2109
2110 stop = ctx->streamon_out && ctx->streamon_cap;
2111
2112 coda_dbg(1, ctx, "stop streaming %s\n", v4l2_type_names[q->type]);
2113
2114 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
2115 ctx->streamon_out = 0;
2116
2117 coda_bit_stream_end_flag(ctx);
2118
2119 ctx->qsequence = 0;
2120
2121 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
2122 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
2123 } else {
2124 ctx->streamon_cap = 0;
2125
2126 ctx->osequence = 0;
2127 ctx->sequence_offset = 0;
2128
2129 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
2130 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
2131 }
2132
2133 if (stop) {
2134 struct coda_buffer_meta *meta;
2135
2136 if (ctx->ops->seq_end_work) {
2137 queue_work(dev->workqueue, &ctx->seq_end_work);
2138 flush_work(&ctx->seq_end_work);
2139 }
2140 spin_lock(&ctx->buffer_meta_lock);
2141 while (!list_empty(&ctx->buffer_meta_list)) {
2142 meta = list_first_entry(&ctx->buffer_meta_list,
2143 struct coda_buffer_meta, list);
2144 list_del(&meta->list);
2145 kfree(meta);
2146 }
2147 ctx->num_metas = 0;
2148 spin_unlock(&ctx->buffer_meta_lock);
2149 kfifo_init(&ctx->bitstream_fifo,
2150 ctx->bitstream.vaddr, ctx->bitstream.size);
2151 ctx->runcounter = 0;
2152 ctx->aborting = 0;
2153 ctx->hold = false;
2154 }
2155
2156 if (!ctx->streamon_out && !ctx->streamon_cap)
2157 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
2158 }
2159
2160 static const struct vb2_ops coda_qops = {
2161 .queue_setup = coda_queue_setup,
2162 .buf_prepare = coda_buf_prepare,
2163 .buf_queue = coda_buf_queue,
2164 .start_streaming = coda_start_streaming,
2165 .stop_streaming = coda_stop_streaming,
2166 .wait_prepare = vb2_ops_wait_prepare,
2167 .wait_finish = vb2_ops_wait_finish,
2168 };
2169
2170 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
2171 {
2172 const char * const *val_names = v4l2_ctrl_get_menu(ctrl->id);
2173 struct coda_ctx *ctx =
2174 container_of(ctrl->handler, struct coda_ctx, ctrls);
2175
2176 if (val_names)
2177 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d (\"%s\")\n",
2178 ctrl->id, ctrl->name, ctrl->val, val_names[ctrl->val]);
2179 else
2180 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d\n",
2181 ctrl->id, ctrl->name, ctrl->val);
2182
2183 switch (ctrl->id) {
2184 case V4L2_CID_HFLIP:
2185 if (ctrl->val)
2186 ctx->params.rot_mode |= CODA_MIR_HOR;
2187 else
2188 ctx->params.rot_mode &= ~CODA_MIR_HOR;
2189 break;
2190 case V4L2_CID_VFLIP:
2191 if (ctrl->val)
2192 ctx->params.rot_mode |= CODA_MIR_VER;
2193 else
2194 ctx->params.rot_mode &= ~CODA_MIR_VER;
2195 break;
2196 case V4L2_CID_MPEG_VIDEO_BITRATE:
2197 ctx->params.bitrate = ctrl->val / 1000;
2198 ctx->params.bitrate_changed = true;
2199 break;
2200 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
2201 ctx->params.gop_size = ctrl->val;
2202 break;
2203 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
2204 ctx->params.h264_intra_qp = ctrl->val;
2205 ctx->params.h264_intra_qp_changed = true;
2206 break;
2207 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
2208 ctx->params.h264_inter_qp = ctrl->val;
2209 break;
2210 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
2211 ctx->params.h264_min_qp = ctrl->val;
2212 break;
2213 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
2214 ctx->params.h264_max_qp = ctrl->val;
2215 break;
2216 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
2217 ctx->params.h264_slice_alpha_c0_offset_div2 = ctrl->val;
2218 break;
2219 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
2220 ctx->params.h264_slice_beta_offset_div2 = ctrl->val;
2221 break;
2222 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
2223 ctx->params.h264_disable_deblocking_filter_idc = ctrl->val;
2224 break;
2225 case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
2226 ctx->params.h264_constrained_intra_pred_flag = ctrl->val;
2227 break;
2228 case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
2229 ctx->params.frame_rc_enable = ctrl->val;
2230 break;
2231 case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE:
2232 ctx->params.mb_rc_enable = ctrl->val;
2233 break;
2234 case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET:
2235 ctx->params.h264_chroma_qp_index_offset = ctrl->val;
2236 break;
2237 case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
2238 /* TODO: switch between baseline and constrained baseline */
2239 if (ctx->inst_type == CODA_INST_ENCODER)
2240 ctx->params.h264_profile_idc = 66;
2241 break;
2242 case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
2243 /* nothing to do, this is set by the encoder */
2244 break;
2245 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
2246 ctx->params.mpeg4_intra_qp = ctrl->val;
2247 break;
2248 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
2249 ctx->params.mpeg4_inter_qp = ctrl->val;
2250 break;
2251 case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE:
2252 case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL:
2253 case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
2254 case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
2255 /* nothing to do, these are fixed */
2256 break;
2257 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
2258 ctx->params.slice_mode = ctrl->val;
2259 ctx->params.slice_mode_changed = true;
2260 break;
2261 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
2262 ctx->params.slice_max_mb = ctrl->val;
2263 ctx->params.slice_mode_changed = true;
2264 break;
2265 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
2266 ctx->params.slice_max_bits = ctrl->val * 8;
2267 ctx->params.slice_mode_changed = true;
2268 break;
2269 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
2270 break;
2271 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
2272 ctx->params.intra_refresh = ctrl->val;
2273 ctx->params.intra_refresh_changed = true;
2274 break;
2275 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
2276 ctx->params.force_ipicture = true;
2277 break;
2278 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
2279 coda_set_jpeg_compression_quality(ctx, ctrl->val);
2280 break;
2281 case V4L2_CID_JPEG_RESTART_INTERVAL:
2282 ctx->params.jpeg_restart_interval = ctrl->val;
2283 break;
2284 case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
2285 ctx->params.vbv_delay = ctrl->val;
2286 break;
2287 case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
2288 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
2289 break;
2290 default:
2291 coda_dbg(1, ctx, "Invalid control, id=%d, val=%d\n",
2292 ctrl->id, ctrl->val);
2293 return -EINVAL;
2294 }
2295
2296 return 0;
2297 }
2298
2299 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
2300 .s_ctrl = coda_s_ctrl,
2301 };
2302
2303 static void coda_encode_ctrls(struct coda_ctx *ctx)
2304 {
2305 int max_gop_size = (ctx->dev->devtype->product == CODA_DX6) ? 60 : 99;
2306
2307 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2308 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
2309 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2310 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, max_gop_size, 1, 16);
2311 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2312 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
2313 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2314 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
2315 if (ctx->dev->devtype->product != CODA_960) {
2316 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2317 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
2318 }
2319 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2320 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
2321 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2322 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, -6, 6, 1, 0);
2323 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2324 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, -6, 6, 1, 0);
2325 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2326 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
2327 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY,
2328 0x0, V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
2329 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2330 V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION, 0, 1, 1,
2331 0);
2332 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2333 V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE, 0, 1, 1, 1);
2334 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2335 V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE, 0, 1, 1, 1);
2336 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2337 V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET, -12, 12, 1, 0);
2338 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2339 V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2340 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE, 0x0,
2341 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE);
2342 if (ctx->dev->devtype->product == CODA_HX4 ||
2343 ctx->dev->devtype->product == CODA_7541) {
2344 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2345 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2346 V4L2_MPEG_VIDEO_H264_LEVEL_3_1,
2347 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2348 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2349 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1)),
2350 V4L2_MPEG_VIDEO_H264_LEVEL_3_1);
2351 }
2352 if (ctx->dev->devtype->product == CODA_960) {
2353 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2354 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2355 V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
2356 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2357 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2358 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
2359 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
2360 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0)),
2361 V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
2362 }
2363 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2364 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
2365 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2366 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
2367 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2368 V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2369 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, 0x0,
2370 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE);
2371 if (ctx->dev->devtype->product == CODA_HX4 ||
2372 ctx->dev->devtype->product == CODA_7541 ||
2373 ctx->dev->devtype->product == CODA_960) {
2374 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2375 V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2376 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
2377 ~(1 << V4L2_MPEG_VIDEO_MPEG4_LEVEL_5),
2378 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2379 }
2380 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2381 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
2382 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES, 0x0,
2383 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
2384 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2385 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
2386 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2387 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
2388 500);
2389 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2390 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
2391 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
2392 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
2393 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
2394 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2395 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
2396 1920 * 1088 / 256, 1, 0);
2397 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2398 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
2399 /*
2400 * The maximum VBV size value is 0x7fffffff bits,
2401 * one bit less than 262144 KiB
2402 */
2403 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2404 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
2405 }
2406
2407 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
2408 {
2409 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2410 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
2411 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2412 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
2413 }
2414
2415 static void coda_decode_ctrls(struct coda_ctx *ctx)
2416 {
2417 u8 max;
2418
2419 ctx->h264_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2420 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2421 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
2422 ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
2423 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
2424 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
2425 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
2426 if (ctx->h264_profile_ctrl)
2427 ctx->h264_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2428
2429 if (ctx->dev->devtype->product == CODA_HX4 ||
2430 ctx->dev->devtype->product == CODA_7541)
2431 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
2432 else if (ctx->dev->devtype->product == CODA_960)
2433 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
2434 else
2435 return;
2436 ctx->h264_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2437 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL, max, 0, max);
2438 if (ctx->h264_level_ctrl)
2439 ctx->h264_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2440
2441 ctx->mpeg2_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2442 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE,
2443 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH, 0,
2444 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH);
2445 if (ctx->mpeg2_profile_ctrl)
2446 ctx->mpeg2_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2447
2448 ctx->mpeg2_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2449 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL,
2450 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH, 0,
2451 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH);
2452 if (ctx->mpeg2_level_ctrl)
2453 ctx->mpeg2_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2454
2455 ctx->mpeg4_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2456 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2457 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY, 0,
2458 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY);
2459 if (ctx->mpeg4_profile_ctrl)
2460 ctx->mpeg4_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2461
2462 ctx->mpeg4_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2463 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2464 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5, 0,
2465 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2466 if (ctx->mpeg4_level_ctrl)
2467 ctx->mpeg4_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2468 }
2469
2470 static const struct v4l2_ctrl_config coda_mb_err_cnt_ctrl_config = {
2471 .id = V4L2_CID_CODA_MB_ERR_CNT,
2472 .name = "Macroblocks Error Count",
2473 .type = V4L2_CTRL_TYPE_INTEGER,
2474 .min = 0,
2475 .max = 0x7fffffff,
2476 .step = 1,
2477 };
2478
2479 static int coda_ctrls_setup(struct coda_ctx *ctx)
2480 {
2481 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
2482
2483 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2484 V4L2_CID_HFLIP, 0, 1, 1, 0);
2485 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2486 V4L2_CID_VFLIP, 0, 1, 1, 0);
2487 if (ctx->inst_type == CODA_INST_ENCODER) {
2488 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2489 V4L2_CID_MIN_BUFFERS_FOR_OUTPUT,
2490 1, 1, 1, 1);
2491 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
2492 coda_jpeg_encode_ctrls(ctx);
2493 else
2494 coda_encode_ctrls(ctx);
2495 } else {
2496 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2497 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
2498 1, 1, 1, 1);
2499 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_H264)
2500 coda_decode_ctrls(ctx);
2501
2502 ctx->mb_err_cnt_ctrl = v4l2_ctrl_new_custom(&ctx->ctrls,
2503 &coda_mb_err_cnt_ctrl_config,
2504 NULL);
2505 if (ctx->mb_err_cnt_ctrl)
2506 ctx->mb_err_cnt_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2507 }
2508
2509 if (ctx->ctrls.error) {
2510 v4l2_err(&ctx->dev->v4l2_dev,
2511 "control initialization error (%d)",
2512 ctx->ctrls.error);
2513 return -EINVAL;
2514 }
2515
2516 return v4l2_ctrl_handler_setup(&ctx->ctrls);
2517 }
2518
2519 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
2520 {
2521 vq->drv_priv = ctx;
2522 vq->ops = &coda_qops;
2523 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2524 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2525 vq->lock = &ctx->dev->dev_mutex;
2526 /* One way to indicate end-of-stream for coda is to set the
2527 * bytesused == 0. However by default videobuf2 handles bytesused
2528 * equal to 0 as a special case and changes its value to the size
2529 * of the buffer. Set the allow_zero_bytesused flag, so
2530 * that videobuf2 will keep the value of bytesused intact.
2531 */
2532 vq->allow_zero_bytesused = 1;
2533 /*
2534 * We might be fine with no buffers on some of the queues, but that
2535 * would need to be reflected in job_ready(). Currently we expect all
2536 * queues to have at least one buffer queued.
2537 */
2538 vq->min_buffers_needed = 1;
2539 vq->dev = ctx->dev->dev;
2540
2541 return vb2_queue_init(vq);
2542 }
2543
2544 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
2545 struct vb2_queue *dst_vq)
2546 {
2547 int ret;
2548
2549 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2550 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2551 src_vq->mem_ops = &vb2_dma_contig_memops;
2552
2553 ret = coda_queue_init(priv, src_vq);
2554 if (ret)
2555 return ret;
2556
2557 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2558 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2559 dst_vq->mem_ops = &vb2_dma_contig_memops;
2560
2561 return coda_queue_init(priv, dst_vq);
2562 }
2563
2564 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
2565 struct vb2_queue *dst_vq)
2566 {
2567 int ret;
2568
2569 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2570 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2571 src_vq->mem_ops = &vb2_vmalloc_memops;
2572
2573 ret = coda_queue_init(priv, src_vq);
2574 if (ret)
2575 return ret;
2576
2577 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2578 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2579 dst_vq->dma_attrs = DMA_ATTR_NO_KERNEL_MAPPING;
2580 dst_vq->mem_ops = &vb2_dma_contig_memops;
2581
2582 return coda_queue_init(priv, dst_vq);
2583 }
2584
2585 /*
2586 * File operations
2587 */
2588
2589 static int coda_open(struct file *file)
2590 {
2591 struct video_device *vdev = video_devdata(file);
2592 struct coda_dev *dev = video_get_drvdata(vdev);
2593 struct coda_ctx *ctx;
2594 unsigned int max = ~0;
2595 char *name;
2596 int ret;
2597 int idx;
2598
2599 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2600 if (!ctx)
2601 return -ENOMEM;
2602
2603 if (dev->devtype->product == CODA_DX6)
2604 max = CODADX6_MAX_INSTANCES - 1;
2605 idx = ida_alloc_max(&dev->ida, max, GFP_KERNEL);
2606 if (idx < 0) {
2607 ret = idx;
2608 goto err_coda_max;
2609 }
2610
2611 name = kasprintf(GFP_KERNEL, "context%d", idx);
2612 if (!name) {
2613 ret = -ENOMEM;
2614 goto err_coda_name_init;
2615 }
2616
2617 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
2618 kfree(name);
2619
2620 ctx->cvd = to_coda_video_device(vdev);
2621 ctx->inst_type = ctx->cvd->type;
2622 ctx->ops = ctx->cvd->ops;
2623 ctx->use_bit = !ctx->cvd->direct;
2624 init_completion(&ctx->completion);
2625 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
2626 if (ctx->ops->seq_init_work)
2627 INIT_WORK(&ctx->seq_init_work, ctx->ops->seq_init_work);
2628 if (ctx->ops->seq_end_work)
2629 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
2630 v4l2_fh_init(&ctx->fh, video_devdata(file));
2631 file->private_data = &ctx->fh;
2632 v4l2_fh_add(&ctx->fh);
2633 ctx->dev = dev;
2634 ctx->idx = idx;
2635
2636 coda_dbg(1, ctx, "open instance (%p)\n", ctx);
2637
2638 switch (dev->devtype->product) {
2639 case CODA_960:
2640 /*
2641 * Enabling the BWB when decoding can hang the firmware with
2642 * certain streams. The issue was tracked as ENGR00293425 by
2643 * Freescale. As a workaround, disable BWB for all decoders.
2644 * The enable_bwb module parameter allows to override this.
2645 */
2646 if (enable_bwb || ctx->inst_type == CODA_INST_ENCODER)
2647 ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
2648 fallthrough;
2649 case CODA_HX4:
2650 case CODA_7541:
2651 ctx->reg_idx = 0;
2652 break;
2653 default:
2654 ctx->reg_idx = idx;
2655 }
2656 if (ctx->dev->vdoa && !disable_vdoa) {
2657 ctx->vdoa = vdoa_context_create(dev->vdoa);
2658 if (!ctx->vdoa)
2659 v4l2_warn(&dev->v4l2_dev,
2660 "Failed to create vdoa context: not using vdoa");
2661 }
2662 ctx->use_vdoa = false;
2663
2664 /* Power up and upload firmware if necessary */
2665 ret = pm_runtime_resume_and_get(dev->dev);
2666 if (ret < 0) {
2667 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
2668 goto err_pm_get;
2669 }
2670
2671 ret = clk_prepare_enable(dev->clk_per);
2672 if (ret)
2673 goto err_clk_enable;
2674
2675 ret = clk_prepare_enable(dev->clk_ahb);
2676 if (ret)
2677 goto err_clk_ahb;
2678
2679 set_default_params(ctx);
2680 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2681 ctx->ops->queue_init);
2682 if (IS_ERR(ctx->fh.m2m_ctx)) {
2683 ret = PTR_ERR(ctx->fh.m2m_ctx);
2684
2685 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2686 __func__, ret);
2687 goto err_ctx_init;
2688 }
2689
2690 ret = coda_ctrls_setup(ctx);
2691 if (ret) {
2692 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
2693 goto err_ctrls_setup;
2694 }
2695
2696 ctx->fh.ctrl_handler = &ctx->ctrls;
2697
2698 mutex_init(&ctx->bitstream_mutex);
2699 mutex_init(&ctx->buffer_mutex);
2700 mutex_init(&ctx->wakeup_mutex);
2701 INIT_LIST_HEAD(&ctx->buffer_meta_list);
2702 spin_lock_init(&ctx->buffer_meta_lock);
2703
2704 return 0;
2705
2706 err_ctrls_setup:
2707 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2708 err_ctx_init:
2709 clk_disable_unprepare(dev->clk_ahb);
2710 err_clk_ahb:
2711 clk_disable_unprepare(dev->clk_per);
2712 err_clk_enable:
2713 pm_runtime_put_sync(dev->dev);
2714 err_pm_get:
2715 v4l2_fh_del(&ctx->fh);
2716 v4l2_fh_exit(&ctx->fh);
2717 err_coda_name_init:
2718 ida_free(&dev->ida, ctx->idx);
2719 err_coda_max:
2720 kfree(ctx);
2721 return ret;
2722 }
2723
2724 static int coda_release(struct file *file)
2725 {
2726 struct coda_dev *dev = video_drvdata(file);
2727 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2728
2729 coda_dbg(1, ctx, "release instance (%p)\n", ctx);
2730
2731 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2732 coda_bit_stream_end_flag(ctx);
2733
2734 /* If this instance is running, call .job_abort and wait for it to end */
2735 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2736
2737 if (ctx->vdoa)
2738 vdoa_context_destroy(ctx->vdoa);
2739
2740 /* In case the instance was not running, we still need to call SEQ_END */
2741 if (ctx->ops->seq_end_work) {
2742 queue_work(dev->workqueue, &ctx->seq_end_work);
2743 flush_work(&ctx->seq_end_work);
2744 }
2745
2746 if (ctx->dev->devtype->product == CODA_DX6)
2747 coda_free_aux_buf(dev, &ctx->workbuf);
2748
2749 v4l2_ctrl_handler_free(&ctx->ctrls);
2750 clk_disable_unprepare(dev->clk_ahb);
2751 clk_disable_unprepare(dev->clk_per);
2752 pm_runtime_put_sync(dev->dev);
2753 v4l2_fh_del(&ctx->fh);
2754 v4l2_fh_exit(&ctx->fh);
2755 ida_free(&dev->ida, ctx->idx);
2756 if (ctx->ops->release)
2757 ctx->ops->release(ctx);
2758 debugfs_remove_recursive(ctx->debugfs_entry);
2759 kfree(ctx);
2760
2761 return 0;
2762 }
2763
2764 static const struct v4l2_file_operations coda_fops = {
2765 .owner = THIS_MODULE,
2766 .open = coda_open,
2767 .release = coda_release,
2768 .poll = v4l2_m2m_fop_poll,
2769 .unlocked_ioctl = video_ioctl2,
2770 .mmap = v4l2_m2m_fop_mmap,
2771 };
2772
2773 static int coda_hw_init(struct coda_dev *dev)
2774 {
2775 u32 data;
2776 u16 *p;
2777 int i, ret;
2778
2779 ret = clk_prepare_enable(dev->clk_per);
2780 if (ret)
2781 goto err_clk_per;
2782
2783 ret = clk_prepare_enable(dev->clk_ahb);
2784 if (ret)
2785 goto err_clk_ahb;
2786
2787 reset_control_reset(dev->rstc);
2788
2789 /*
2790 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2791 * The 16-bit chars in the code buffer are in memory access
2792 * order, re-sort them to CODA order for register download.
2793 * Data in this SRAM survives a reboot.
2794 */
2795 p = (u16 *)dev->codebuf.vaddr;
2796 if (dev->devtype->product == CODA_DX6) {
2797 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2798 data = CODA_DOWN_ADDRESS_SET(i) |
2799 CODA_DOWN_DATA_SET(p[i ^ 1]);
2800 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2801 }
2802 } else {
2803 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2804 data = CODA_DOWN_ADDRESS_SET(i) |
2805 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2806 3 - (i % 4)]);
2807 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2808 }
2809 }
2810
2811 /* Clear registers */
2812 for (i = 0; i < 64; i++)
2813 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2814
2815 /* Tell the BIT where to find everything it needs */
2816 if (dev->devtype->product == CODA_960 ||
2817 dev->devtype->product == CODA_7541 ||
2818 dev->devtype->product == CODA_HX4) {
2819 coda_write(dev, dev->tempbuf.paddr,
2820 CODA_REG_BIT_TEMP_BUF_ADDR);
2821 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2822 } else {
2823 coda_write(dev, dev->workbuf.paddr,
2824 CODA_REG_BIT_WORK_BUF_ADDR);
2825 }
2826 coda_write(dev, dev->codebuf.paddr,
2827 CODA_REG_BIT_CODE_BUF_ADDR);
2828 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2829
2830 /* Set default values */
2831 switch (dev->devtype->product) {
2832 case CODA_DX6:
2833 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2834 CODA_REG_BIT_STREAM_CTRL);
2835 break;
2836 default:
2837 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2838 CODA_REG_BIT_STREAM_CTRL);
2839 }
2840 if (dev->devtype->product == CODA_960)
2841 coda_write(dev, CODA9_FRAME_ENABLE_BWB,
2842 CODA_REG_BIT_FRAME_MEM_CTRL);
2843 else
2844 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2845
2846 if (dev->devtype->product != CODA_DX6)
2847 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2848
2849 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2850 CODA_REG_BIT_INT_ENABLE);
2851
2852 /* Reset VPU and start processor */
2853 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2854 data |= CODA_REG_RESET_ENABLE;
2855 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2856 udelay(10);
2857 data &= ~CODA_REG_RESET_ENABLE;
2858 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2859 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2860
2861 clk_disable_unprepare(dev->clk_ahb);
2862 clk_disable_unprepare(dev->clk_per);
2863
2864 return 0;
2865
2866 err_clk_ahb:
2867 clk_disable_unprepare(dev->clk_per);
2868 err_clk_per:
2869 return ret;
2870 }
2871
2872 static int coda_register_device(struct coda_dev *dev, int i)
2873 {
2874 struct video_device *vfd = &dev->vfd[i];
2875 const char *name;
2876 int ret;
2877
2878 if (i >= dev->devtype->num_vdevs)
2879 return -EINVAL;
2880 name = dev->devtype->vdevs[i]->name;
2881
2882 strscpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2883 vfd->fops = &coda_fops;
2884 vfd->ioctl_ops = &coda_ioctl_ops;
2885 vfd->release = video_device_release_empty;
2886 vfd->lock = &dev->dev_mutex;
2887 vfd->v4l2_dev = &dev->v4l2_dev;
2888 vfd->vfl_dir = VFL_DIR_M2M;
2889 vfd->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
2890 video_set_drvdata(vfd, dev);
2891
2892 /* Not applicable, use the selection API instead */
2893 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2894 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2895 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2896
2897 ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0);
2898 if (!ret)
2899 v4l2_info(&dev->v4l2_dev, "%s registered as %s\n",
2900 name, video_device_node_name(vfd));
2901 return ret;
2902 }
2903
2904 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2905 size_t size)
2906 {
2907 u32 *src = (u32 *)buf;
2908
2909 /* Check if the firmware has a 16-byte Freescale header, skip it */
2910 if (buf[0] == 'M' && buf[1] == 'X')
2911 src += 4;
2912 /*
2913 * Check whether the firmware is in native order or pre-reordered for
2914 * memory access. The first instruction opcode always is 0xe40e.
2915 */
2916 if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2917 u32 *dst = dev->codebuf.vaddr;
2918 int i;
2919
2920 /* Firmware in native order, reorder while copying */
2921 if (dev->devtype->product == CODA_DX6) {
2922 for (i = 0; i < (size - 16) / 4; i++)
2923 dst[i] = (src[i] << 16) | (src[i] >> 16);
2924 } else {
2925 for (i = 0; i < (size - 16) / 4; i += 2) {
2926 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2927 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2928 }
2929 }
2930 } else {
2931 /* Copy the already reordered firmware image */
2932 memcpy(dev->codebuf.vaddr, src, size);
2933 }
2934 }
2935
2936 static void coda_fw_callback(const struct firmware *fw, void *context);
2937
2938 static int coda_firmware_request(struct coda_dev *dev)
2939 {
2940 char *fw;
2941
2942 if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2943 return -EINVAL;
2944
2945 fw = dev->devtype->firmware[dev->firmware];
2946
2947 dev_dbg(dev->dev, "requesting firmware '%s' for %s\n", fw,
2948 coda_product_name(dev->devtype->product));
2949
2950 return request_firmware_nowait(THIS_MODULE, true, fw, dev->dev,
2951 GFP_KERNEL, dev, coda_fw_callback);
2952 }
2953
2954 static void coda_fw_callback(const struct firmware *fw, void *context)
2955 {
2956 struct coda_dev *dev = context;
2957 int i, ret;
2958
2959 if (!fw) {
2960 dev->firmware++;
2961 ret = coda_firmware_request(dev);
2962 if (ret < 0) {
2963 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2964 goto put_pm;
2965 }
2966 return;
2967 }
2968 if (dev->firmware > 0) {
2969 /*
2970 * Since we can't suppress warnings for failed asynchronous
2971 * firmware requests, report that the fallback firmware was
2972 * found.
2973 */
2974 dev_info(dev->dev, "Using fallback firmware %s\n",
2975 dev->devtype->firmware[dev->firmware]);
2976 }
2977
2978 /* allocate auxiliary per-device code buffer for the BIT processor */
2979 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
2980 dev->debugfs_root);
2981 if (ret < 0)
2982 goto put_pm;
2983
2984 coda_copy_firmware(dev, fw->data, fw->size);
2985 release_firmware(fw);
2986
2987 ret = coda_hw_init(dev);
2988 if (ret < 0) {
2989 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
2990 goto put_pm;
2991 }
2992
2993 ret = coda_check_firmware(dev);
2994 if (ret < 0)
2995 goto put_pm;
2996
2997 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
2998 if (IS_ERR(dev->m2m_dev)) {
2999 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
3000 goto put_pm;
3001 }
3002
3003 for (i = 0; i < dev->devtype->num_vdevs; i++) {
3004 ret = coda_register_device(dev, i);
3005 if (ret) {
3006 v4l2_err(&dev->v4l2_dev,
3007 "Failed to register %s video device: %d\n",
3008 dev->devtype->vdevs[i]->name, ret);
3009 goto rel_vfd;
3010 }
3011 }
3012
3013 pm_runtime_put_sync(dev->dev);
3014 return;
3015
3016 rel_vfd:
3017 while (--i >= 0)
3018 video_unregister_device(&dev->vfd[i]);
3019 v4l2_m2m_release(dev->m2m_dev);
3020 put_pm:
3021 pm_runtime_put_sync(dev->dev);
3022 }
3023
3024 enum coda_platform {
3025 CODA_IMX27,
3026 CODA_IMX51,
3027 CODA_IMX53,
3028 CODA_IMX6Q,
3029 CODA_IMX6DL,
3030 };
3031
3032 static const struct coda_devtype coda_devdata[] = {
3033 [CODA_IMX27] = {
3034 .firmware = {
3035 "vpu_fw_imx27_TO2.bin",
3036 "vpu/vpu_fw_imx27_TO2.bin",
3037 "v4l-codadx6-imx27.bin"
3038 },
3039 .product = CODA_DX6,
3040 .codecs = codadx6_codecs,
3041 .num_codecs = ARRAY_SIZE(codadx6_codecs),
3042 .vdevs = codadx6_video_devices,
3043 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
3044 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
3045 .iram_size = 0xb000,
3046 },
3047 [CODA_IMX51] = {
3048 .firmware = {
3049 "vpu_fw_imx51.bin",
3050 "vpu/vpu_fw_imx51.bin",
3051 "v4l-codahx4-imx51.bin"
3052 },
3053 .product = CODA_HX4,
3054 .codecs = codahx4_codecs,
3055 .num_codecs = ARRAY_SIZE(codahx4_codecs),
3056 .vdevs = codahx4_video_devices,
3057 .num_vdevs = ARRAY_SIZE(codahx4_video_devices),
3058 .workbuf_size = 128 * 1024,
3059 .tempbuf_size = 304 * 1024,
3060 .iram_size = 0x14000,
3061 },
3062 [CODA_IMX53] = {
3063 .firmware = {
3064 "vpu_fw_imx53.bin",
3065 "vpu/vpu_fw_imx53.bin",
3066 "v4l-coda7541-imx53.bin"
3067 },
3068 .product = CODA_7541,
3069 .codecs = coda7_codecs,
3070 .num_codecs = ARRAY_SIZE(coda7_codecs),
3071 .vdevs = coda7_video_devices,
3072 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
3073 .workbuf_size = 128 * 1024,
3074 .tempbuf_size = 304 * 1024,
3075 .iram_size = 0x14000,
3076 },
3077 [CODA_IMX6Q] = {
3078 .firmware = {
3079 "vpu_fw_imx6q.bin",
3080 "vpu/vpu_fw_imx6q.bin",
3081 "v4l-coda960-imx6q.bin"
3082 },
3083 .product = CODA_960,
3084 .codecs = coda9_codecs,
3085 .num_codecs = ARRAY_SIZE(coda9_codecs),
3086 .vdevs = coda9_video_devices,
3087 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
3088 .workbuf_size = 80 * 1024,
3089 .tempbuf_size = 204 * 1024,
3090 .iram_size = 0x21000,
3091 },
3092 [CODA_IMX6DL] = {
3093 .firmware = {
3094 "vpu_fw_imx6d.bin",
3095 "vpu/vpu_fw_imx6d.bin",
3096 "v4l-coda960-imx6dl.bin"
3097 },
3098 .product = CODA_960,
3099 .codecs = coda9_codecs,
3100 .num_codecs = ARRAY_SIZE(coda9_codecs),
3101 .vdevs = coda9_video_devices,
3102 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
3103 .workbuf_size = 80 * 1024,
3104 .tempbuf_size = 204 * 1024,
3105 .iram_size = 0x1f000, /* leave 4k for suspend code */
3106 },
3107 };
3108
3109 static const struct of_device_id coda_dt_ids[] = {
3110 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
3111 { .compatible = "fsl,imx51-vpu", .data = &coda_devdata[CODA_IMX51] },
3112 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
3113 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
3114 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
3115 { /* sentinel */ }
3116 };
3117 MODULE_DEVICE_TABLE(of, coda_dt_ids);
3118
3119 static int coda_probe(struct platform_device *pdev)
3120 {
3121 struct device_node *np = pdev->dev.of_node;
3122 struct gen_pool *pool;
3123 struct coda_dev *dev;
3124 int ret, irq;
3125
3126 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
3127 if (!dev)
3128 return -ENOMEM;
3129
3130 dev->devtype = of_device_get_match_data(&pdev->dev);
3131
3132 dev->dev = &pdev->dev;
3133 dev->clk_per = devm_clk_get(&pdev->dev, "per");
3134 if (IS_ERR(dev->clk_per)) {
3135 dev_err(&pdev->dev, "Could not get per clock\n");
3136 return PTR_ERR(dev->clk_per);
3137 }
3138
3139 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
3140 if (IS_ERR(dev->clk_ahb)) {
3141 dev_err(&pdev->dev, "Could not get ahb clock\n");
3142 return PTR_ERR(dev->clk_ahb);
3143 }
3144
3145 /* Get memory for physical registers */
3146 dev->regs_base = devm_platform_ioremap_resource(pdev, 0);
3147 if (IS_ERR(dev->regs_base))
3148 return PTR_ERR(dev->regs_base);
3149
3150 /* IRQ */
3151 irq = platform_get_irq_byname(pdev, "bit");
3152 if (irq < 0)
3153 irq = platform_get_irq(pdev, 0);
3154 if (irq < 0)
3155 return irq;
3156
3157 ret = devm_request_irq(&pdev->dev, irq, coda_irq_handler, 0,
3158 CODA_NAME "-video", dev);
3159 if (ret < 0) {
3160 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
3161 return ret;
3162 }
3163
3164 /* JPEG IRQ */
3165 if (dev->devtype->product == CODA_960) {
3166 irq = platform_get_irq_byname(pdev, "jpeg");
3167 if (irq < 0)
3168 return irq;
3169
3170 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
3171 coda9_jpeg_irq_handler,
3172 IRQF_ONESHOT, CODA_NAME "-jpeg",
3173 dev);
3174 if (ret < 0) {
3175 dev_err(&pdev->dev, "failed to request jpeg irq\n");
3176 return ret;
3177 }
3178 }
3179
3180 dev->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev,
3181 NULL);
3182 if (IS_ERR(dev->rstc)) {
3183 ret = PTR_ERR(dev->rstc);
3184 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
3185 return ret;
3186 }
3187
3188 /* Get IRAM pool from device tree */
3189 pool = of_gen_pool_get(np, "iram", 0);
3190 if (!pool) {
3191 dev_err(&pdev->dev, "iram pool not available\n");
3192 return -ENOMEM;
3193 }
3194 dev->iram_pool = pool;
3195
3196 /* Get vdoa_data if supported by the platform */
3197 dev->vdoa = coda_get_vdoa_data();
3198 if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
3199 return -EPROBE_DEFER;
3200
3201 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
3202 if (ret)
3203 return ret;
3204
3205 ratelimit_default_init(&dev->mb_err_rs);
3206 mutex_init(&dev->dev_mutex);
3207 mutex_init(&dev->coda_mutex);
3208 ida_init(&dev->ida);
3209
3210 dev->debugfs_root = debugfs_create_dir("coda", NULL);
3211
3212 /* allocate auxiliary per-device buffers for the BIT processor */
3213 if (dev->devtype->product == CODA_DX6) {
3214 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
3215 dev->devtype->workbuf_size, "workbuf",
3216 dev->debugfs_root);
3217 if (ret < 0)
3218 goto err_v4l2_register;
3219 }
3220
3221 if (dev->devtype->tempbuf_size) {
3222 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
3223 dev->devtype->tempbuf_size, "tempbuf",
3224 dev->debugfs_root);
3225 if (ret < 0)
3226 goto err_v4l2_register;
3227 }
3228
3229 dev->iram.size = dev->devtype->iram_size;
3230 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
3231 &dev->iram.paddr);
3232 if (!dev->iram.vaddr) {
3233 dev_warn(&pdev->dev, "unable to alloc iram\n");
3234 } else {
3235 memset(dev->iram.vaddr, 0, dev->iram.size);
3236 dev->iram.blob.data = dev->iram.vaddr;
3237 dev->iram.blob.size = dev->iram.size;
3238 dev->iram.dentry = debugfs_create_blob("iram", 0444,
3239 dev->debugfs_root,
3240 &dev->iram.blob);
3241 }
3242
3243 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
3244 if (!dev->workqueue) {
3245 dev_err(&pdev->dev, "unable to alloc workqueue\n");
3246 ret = -ENOMEM;
3247 goto err_v4l2_register;
3248 }
3249
3250 platform_set_drvdata(pdev, dev);
3251
3252 /*
3253 * Start activated so we can directly call coda_hw_init in
3254 * coda_fw_callback regardless of whether CONFIG_PM is
3255 * enabled or whether the device is associated with a PM domain.
3256 */
3257 pm_runtime_get_noresume(&pdev->dev);
3258 pm_runtime_set_active(&pdev->dev);
3259 pm_runtime_enable(&pdev->dev);
3260
3261 ret = coda_firmware_request(dev);
3262 if (ret)
3263 goto err_alloc_workqueue;
3264 return 0;
3265
3266 err_alloc_workqueue:
3267 pm_runtime_disable(&pdev->dev);
3268 pm_runtime_put_noidle(&pdev->dev);
3269 destroy_workqueue(dev->workqueue);
3270 err_v4l2_register:
3271 v4l2_device_unregister(&dev->v4l2_dev);
3272 return ret;
3273 }
3274
3275 static int coda_remove(struct platform_device *pdev)
3276 {
3277 struct coda_dev *dev = platform_get_drvdata(pdev);
3278 int i;
3279
3280 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
3281 if (video_get_drvdata(&dev->vfd[i]))
3282 video_unregister_device(&dev->vfd[i]);
3283 }
3284 if (dev->m2m_dev)
3285 v4l2_m2m_release(dev->m2m_dev);
3286 pm_runtime_disable(&pdev->dev);
3287 v4l2_device_unregister(&dev->v4l2_dev);
3288 destroy_workqueue(dev->workqueue);
3289 if (dev->iram.vaddr)
3290 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
3291 dev->iram.size);
3292 coda_free_aux_buf(dev, &dev->codebuf);
3293 coda_free_aux_buf(dev, &dev->tempbuf);
3294 coda_free_aux_buf(dev, &dev->workbuf);
3295 debugfs_remove_recursive(dev->debugfs_root);
3296 ida_destroy(&dev->ida);
3297 return 0;
3298 }
3299
3300 #ifdef CONFIG_PM
3301 static int coda_runtime_resume(struct device *dev)
3302 {
3303 struct coda_dev *cdev = dev_get_drvdata(dev);
3304 int ret = 0;
3305
3306 if (dev->pm_domain && cdev->codebuf.vaddr) {
3307 ret = coda_hw_init(cdev);
3308 if (ret)
3309 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
3310 }
3311
3312 return ret;
3313 }
3314 #endif
3315
3316 static const struct dev_pm_ops coda_pm_ops = {
3317 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
3318 };
3319
3320 static struct platform_driver coda_driver = {
3321 .probe = coda_probe,
3322 .remove = coda_remove,
3323 .driver = {
3324 .name = CODA_NAME,
3325 .of_match_table = coda_dt_ids,
3326 .pm = &coda_pm_ops,
3327 },
3328 };
3329
3330 module_platform_driver(coda_driver);
3331
3332 MODULE_LICENSE("GPL");
3333 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
3334 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
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