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WIP FPC-III support
[linux/fpc-iii.git] / drivers / media / platform / qcom / venus / vdec.c
blob8488411204c3021a9676e28cf96c3beb4f6e60b9
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
4 * Copyright (C) 2017 Linaro Ltd.
5 */
6 #include <linux/clk.h>
7 #include <linux/module.h>
8 #include <linux/mod_devicetable.h>
9 #include <linux/platform_device.h>
10 #include <linux/pm_runtime.h>
11 #include <linux/slab.h>
12 #include <media/v4l2-ioctl.h>
13 #include <media/v4l2-event.h>
14 #include <media/v4l2-ctrls.h>
15 #include <media/v4l2-mem2mem.h>
16 #include <media/videobuf2-dma-sg.h>
17
18 #include "hfi_venus_io.h"
19 #include "hfi_parser.h"
20 #include "core.h"
21 #include "helpers.h"
22 #include "vdec.h"
23 #include "pm_helpers.h"
24
25 /*
26 * Three resons to keep MPLANE formats (despite that the number of planes
27 * currently is one):
28 * - the MPLANE formats allow only one plane to be used
29 * - the downstream driver use MPLANE formats too
30 * - future firmware versions could add support for >1 planes
31 */
32 static const struct venus_format vdec_formats[] = {
33 {
34 .pixfmt = V4L2_PIX_FMT_NV12,
35 .num_planes = 1,
36 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
37 }, {
38 .pixfmt = V4L2_PIX_FMT_MPEG4,
39 .num_planes = 1,
40 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
41 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
42 }, {
43 .pixfmt = V4L2_PIX_FMT_MPEG2,
44 .num_planes = 1,
45 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
46 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
47 }, {
48 .pixfmt = V4L2_PIX_FMT_H263,
49 .num_planes = 1,
50 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
51 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
52 }, {
53 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
54 .num_planes = 1,
55 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
56 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
57 }, {
58 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
59 .num_planes = 1,
60 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
61 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
62 }, {
63 .pixfmt = V4L2_PIX_FMT_H264,
64 .num_planes = 1,
65 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
66 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
67 }, {
68 .pixfmt = V4L2_PIX_FMT_VP8,
69 .num_planes = 1,
70 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
71 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
72 }, {
73 .pixfmt = V4L2_PIX_FMT_VP9,
74 .num_planes = 1,
75 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
76 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
77 }, {
78 .pixfmt = V4L2_PIX_FMT_XVID,
79 .num_planes = 1,
80 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
81 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
82 }, {
83 .pixfmt = V4L2_PIX_FMT_HEVC,
84 .num_planes = 1,
85 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
86 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
87 },
88 };
89
90 static const struct venus_format *
91 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
92 {
93 const struct venus_format *fmt = vdec_formats;
94 unsigned int size = ARRAY_SIZE(vdec_formats);
95 unsigned int i;
96
97 for (i = 0; i < size; i++) {
98 if (fmt[i].pixfmt == pixfmt)
99 break;
100 }
101
102 if (i == size || fmt[i].type != type)
103 return NULL;
104
105 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
106 !venus_helper_check_codec(inst, fmt[i].pixfmt))
107 return NULL;
108
109 return &fmt[i];
110 }
111
112 static const struct venus_format *
113 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
114 {
115 const struct venus_format *fmt = vdec_formats;
116 unsigned int size = ARRAY_SIZE(vdec_formats);
117 unsigned int i, k = 0;
118
119 if (index > size)
120 return NULL;
121
122 for (i = 0; i < size; i++) {
123 bool valid;
124
125 if (fmt[i].type != type)
126 continue;
127 valid = type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE ||
128 venus_helper_check_codec(inst, fmt[i].pixfmt);
129 if (k == index && valid)
130 break;
131 if (valid)
132 k++;
133 }
134
135 if (i == size)
136 return NULL;
137
138 return &fmt[i];
139 }
140
141 static const struct venus_format *
142 vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
143 {
144 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
145 struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
146 const struct venus_format *fmt;
147 u32 szimage;
148
149 memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
150 memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
151
152 fmt = find_format(inst, pixmp->pixelformat, f->type);
153 if (!fmt) {
154 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
155 pixmp->pixelformat = V4L2_PIX_FMT_NV12;
156 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
157 pixmp->pixelformat = V4L2_PIX_FMT_H264;
158 else
159 return NULL;
160 fmt = find_format(inst, pixmp->pixelformat, f->type);
161 }
162
163 pixmp->width = clamp(pixmp->width, frame_width_min(inst),
164 frame_width_max(inst));
165 pixmp->height = clamp(pixmp->height, frame_height_min(inst),
166 frame_height_max(inst));
167
168 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
169 pixmp->height = ALIGN(pixmp->height, 32);
170
171 if (pixmp->field == V4L2_FIELD_ANY)
172 pixmp->field = V4L2_FIELD_NONE;
173 pixmp->num_planes = fmt->num_planes;
174 pixmp->flags = 0;
175
176 szimage = venus_helper_get_framesz(pixmp->pixelformat, pixmp->width,
177 pixmp->height);
178
179 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
180 pfmt[0].sizeimage = szimage;
181 pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
182 } else {
183 pfmt[0].sizeimage = clamp_t(u32, pfmt[0].sizeimage, 0, SZ_8M);
184 pfmt[0].sizeimage = max(pfmt[0].sizeimage, szimage);
185 pfmt[0].bytesperline = 0;
186 }
187
188 return fmt;
189 }
190
191 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
192 {
193 struct venus_inst *inst = to_inst(file);
194
195 vdec_try_fmt_common(inst, f);
196
197 return 0;
198 }
199
200 static int vdec_check_src_change(struct venus_inst *inst)
201 {
202 int ret;
203
204 if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE &&
205 inst->codec_state == VENUS_DEC_STATE_INIT &&
206 !inst->reconfig)
207 return -EINVAL;
208
209 if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE)
210 return 0;
211
212 /*
213 * The code snippet below is a workaround for backward compatibility
214 * with applications which doesn't support V4L2 events. It will be
215 * dropped in future once those applications are fixed.
216 */
217
218 if (inst->codec_state != VENUS_DEC_STATE_INIT)
219 goto done;
220
221 ret = wait_event_timeout(inst->reconf_wait, inst->reconfig,
222 msecs_to_jiffies(100));
223 if (!ret)
224 return -EINVAL;
225
226 if (!(inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) ||
227 !inst->reconfig)
228 dev_dbg(inst->core->dev, VDBGH "wrong state\n");
229
230 done:
231 return 0;
232 }
233
234 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
235 {
236 struct venus_inst *inst = to_inst(file);
237 const struct venus_format *fmt = NULL;
238 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
239 int ret;
240
241 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
242 fmt = inst->fmt_cap;
243 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
244 fmt = inst->fmt_out;
245
246 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
247 ret = vdec_check_src_change(inst);
248 if (ret)
249 return ret;
250 }
251
252 pixmp->pixelformat = fmt->pixfmt;
253
254 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
255 pixmp->width = inst->width;
256 pixmp->height = inst->height;
257 pixmp->colorspace = inst->colorspace;
258 pixmp->ycbcr_enc = inst->ycbcr_enc;
259 pixmp->quantization = inst->quantization;
260 pixmp->xfer_func = inst->xfer_func;
261 } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
262 pixmp->width = inst->out_width;
263 pixmp->height = inst->out_height;
264 }
265
266 vdec_try_fmt_common(inst, f);
267
268 return 0;
269 }
270
271 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
272 {
273 struct venus_inst *inst = to_inst(file);
274 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
275 struct v4l2_pix_format_mplane orig_pixmp;
276 const struct venus_format *fmt;
277 struct v4l2_format format;
278 u32 pixfmt_out = 0, pixfmt_cap = 0;
279 struct vb2_queue *q;
280
281 q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
282 if (!q)
283 return -EINVAL;
284
285 if (vb2_is_busy(q))
286 return -EBUSY;
287
288 orig_pixmp = *pixmp;
289
290 fmt = vdec_try_fmt_common(inst, f);
291
292 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
293 pixfmt_out = pixmp->pixelformat;
294 pixfmt_cap = inst->fmt_cap->pixfmt;
295 } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
296 pixfmt_cap = pixmp->pixelformat;
297 pixfmt_out = inst->fmt_out->pixfmt;
298 }
299
300 memset(&format, 0, sizeof(format));
301
302 format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
303 format.fmt.pix_mp.pixelformat = pixfmt_out;
304 format.fmt.pix_mp.width = orig_pixmp.width;
305 format.fmt.pix_mp.height = orig_pixmp.height;
306 vdec_try_fmt_common(inst, &format);
307
308 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
309 inst->out_width = format.fmt.pix_mp.width;
310 inst->out_height = format.fmt.pix_mp.height;
311 inst->colorspace = pixmp->colorspace;
312 inst->ycbcr_enc = pixmp->ycbcr_enc;
313 inst->quantization = pixmp->quantization;
314 inst->xfer_func = pixmp->xfer_func;
315 inst->input_buf_size = pixmp->plane_fmt[0].sizeimage;
316 }
317
318 memset(&format, 0, sizeof(format));
319
320 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
321 format.fmt.pix_mp.pixelformat = pixfmt_cap;
322 format.fmt.pix_mp.width = orig_pixmp.width;
323 format.fmt.pix_mp.height = orig_pixmp.height;
324 vdec_try_fmt_common(inst, &format);
325
326 inst->width = format.fmt.pix_mp.width;
327 inst->height = format.fmt.pix_mp.height;
328 inst->crop.top = 0;
329 inst->crop.left = 0;
330 inst->crop.width = inst->width;
331 inst->crop.height = inst->height;
332
333 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
334 inst->fmt_out = fmt;
335 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
336 inst->fmt_cap = fmt;
337
338 return 0;
339 }
340
341 static int
342 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
343 {
344 struct venus_inst *inst = to_inst(file);
345
346 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
347 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
348 return -EINVAL;
349
350 s->r.top = 0;
351 s->r.left = 0;
352
353 switch (s->target) {
354 case V4L2_SEL_TGT_CROP_BOUNDS:
355 case V4L2_SEL_TGT_CROP_DEFAULT:
356 case V4L2_SEL_TGT_CROP:
357 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
358 return -EINVAL;
359 s->r.width = inst->out_width;
360 s->r.height = inst->out_height;
361 break;
362 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
363 case V4L2_SEL_TGT_COMPOSE_PADDED:
364 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
365 return -EINVAL;
366 s->r.width = inst->width;
367 s->r.height = inst->height;
368 break;
369 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
370 case V4L2_SEL_TGT_COMPOSE:
371 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
372 return -EINVAL;
373 s->r = inst->crop;
374 break;
375 default:
376 return -EINVAL;
377 }
378
379 return 0;
380 }
381
382 static int
383 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
384 {
385 strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
386 strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
387 strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
388
389 return 0;
390 }
391
392 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
393 {
394 struct venus_inst *inst = to_inst(file);
395 const struct venus_format *fmt;
396
397 memset(f->reserved, 0, sizeof(f->reserved));
398
399 fmt = find_format_by_index(inst, f->index, f->type);
400 if (!fmt)
401 return -EINVAL;
402
403 f->pixelformat = fmt->pixfmt;
404 f->flags = fmt->flags;
405
406 return 0;
407 }
408
409 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
410 {
411 struct venus_inst *inst = to_inst(file);
412 struct v4l2_captureparm *cap = &a->parm.capture;
413 struct v4l2_fract *timeperframe = &cap->timeperframe;
414 u64 us_per_frame, fps;
415
416 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
417 a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
418 return -EINVAL;
419
420 memset(cap->reserved, 0, sizeof(cap->reserved));
421 if (!timeperframe->denominator)
422 timeperframe->denominator = inst->timeperframe.denominator;
423 if (!timeperframe->numerator)
424 timeperframe->numerator = inst->timeperframe.numerator;
425 cap->readbuffers = 0;
426 cap->extendedmode = 0;
427 cap->capability = V4L2_CAP_TIMEPERFRAME;
428 us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
429 do_div(us_per_frame, timeperframe->denominator);
430
431 if (!us_per_frame)
432 return -EINVAL;
433
434 fps = (u64)USEC_PER_SEC;
435 do_div(fps, us_per_frame);
436
437 inst->fps = fps;
438 inst->timeperframe = *timeperframe;
439
440 return 0;
441 }
442
443 static int vdec_enum_framesizes(struct file *file, void *fh,
444 struct v4l2_frmsizeenum *fsize)
445 {
446 struct venus_inst *inst = to_inst(file);
447 const struct venus_format *fmt;
448
449 fmt = find_format(inst, fsize->pixel_format,
450 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
451 if (!fmt) {
452 fmt = find_format(inst, fsize->pixel_format,
453 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
454 if (!fmt)
455 return -EINVAL;
456 }
457
458 if (fsize->index)
459 return -EINVAL;
460
461 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
462
463 fsize->stepwise.min_width = frame_width_min(inst);
464 fsize->stepwise.max_width = frame_width_max(inst);
465 fsize->stepwise.step_width = frame_width_step(inst);
466 fsize->stepwise.min_height = frame_height_min(inst);
467 fsize->stepwise.max_height = frame_height_max(inst);
468 fsize->stepwise.step_height = frame_height_step(inst);
469
470 return 0;
471 }
472
473 static int vdec_subscribe_event(struct v4l2_fh *fh,
474 const struct v4l2_event_subscription *sub)
475 {
476 struct venus_inst *inst = container_of(fh, struct venus_inst, fh);
477 int ret;
478
479 switch (sub->type) {
480 case V4L2_EVENT_EOS:
481 return v4l2_event_subscribe(fh, sub, 2, NULL);
482 case V4L2_EVENT_SOURCE_CHANGE:
483 ret = v4l2_src_change_event_subscribe(fh, sub);
484 if (ret)
485 return ret;
486 inst->subscriptions |= V4L2_EVENT_SOURCE_CHANGE;
487 return 0;
488 case V4L2_EVENT_CTRL:
489 return v4l2_ctrl_subscribe_event(fh, sub);
490 default:
491 return -EINVAL;
492 }
493 }
494
495 static int
496 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
497 {
498 struct venus_inst *inst = to_inst(file);
499 struct hfi_frame_data fdata = {0};
500 int ret;
501
502 ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
503 if (ret)
504 return ret;
505
506 mutex_lock(&inst->lock);
507
508 if (cmd->cmd == V4L2_DEC_CMD_STOP) {
509 /*
510 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on
511 * decoder input to signal EOS.
512 */
513 if (!(inst->streamon_out && inst->streamon_cap))
514 goto unlock;
515
516 fdata.buffer_type = HFI_BUFFER_INPUT;
517 fdata.flags |= HFI_BUFFERFLAG_EOS;
518 fdata.device_addr = 0xdeadb000;
519
520 ret = hfi_session_process_buf(inst, &fdata);
521
522 if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING)
523 inst->codec_state = VENUS_DEC_STATE_DRAIN;
524 }
525
526 unlock:
527 mutex_unlock(&inst->lock);
528 return ret;
529 }
530
531 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
532 .vidioc_querycap = vdec_querycap,
533 .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
534 .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
535 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
536 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
537 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
538 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
539 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
540 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
541 .vidioc_g_selection = vdec_g_selection,
542 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
543 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
544 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
545 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
546 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
547 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
548 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
549 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
550 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
551 .vidioc_s_parm = vdec_s_parm,
552 .vidioc_enum_framesizes = vdec_enum_framesizes,
553 .vidioc_subscribe_event = vdec_subscribe_event,
554 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
555 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
556 .vidioc_decoder_cmd = vdec_decoder_cmd,
557 };
558
559 static int vdec_pm_get(struct venus_inst *inst)
560 {
561 struct venus_core *core = inst->core;
562 struct device *dev = core->dev_dec;
563 int ret;
564
565 mutex_lock(&core->pm_lock);
566 ret = pm_runtime_get_sync(dev);
567 mutex_unlock(&core->pm_lock);
568
569 return ret < 0 ? ret : 0;
570 }
571
572 static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
573 {
574 struct venus_core *core = inst->core;
575 struct device *dev = core->dev_dec;
576 int ret;
577
578 mutex_lock(&core->pm_lock);
579
580 if (autosuspend)
581 ret = pm_runtime_put_autosuspend(dev);
582 else
583 ret = pm_runtime_put_sync(dev);
584
585 mutex_unlock(&core->pm_lock);
586
587 return ret < 0 ? ret : 0;
588 }
589
590 static int vdec_pm_get_put(struct venus_inst *inst)
591 {
592 struct venus_core *core = inst->core;
593 struct device *dev = core->dev_dec;
594 int ret = 0;
595
596 mutex_lock(&core->pm_lock);
597
598 if (pm_runtime_suspended(dev)) {
599 ret = pm_runtime_get_sync(dev);
600 if (ret < 0)
601 goto error;
602
603 ret = pm_runtime_put_autosuspend(dev);
604 }
605
606 error:
607 mutex_unlock(&core->pm_lock);
608
609 return ret < 0 ? ret : 0;
610 }
611
612 static void vdec_pm_touch(struct venus_inst *inst)
613 {
614 pm_runtime_mark_last_busy(inst->core->dev_dec);
615 }
616
617 static int vdec_set_properties(struct venus_inst *inst)
618 {
619 struct vdec_controls *ctr = &inst->controls.dec;
620 struct hfi_enable en = { .enable = 1 };
621 u32 ptype;
622 int ret;
623
624 if (ctr->post_loop_deb_mode) {
625 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
626 ret = hfi_session_set_property(inst, ptype, &en);
627 if (ret)
628 return ret;
629 }
630
631 return 0;
632 }
633
634 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
635
636 static int vdec_output_conf(struct venus_inst *inst)
637 {
638 struct venus_core *core = inst->core;
639 struct hfi_enable en = { .enable = 1 };
640 u32 width = inst->out_width;
641 u32 height = inst->out_height;
642 u32 out_fmt, out2_fmt;
643 bool ubwc = false;
644 u32 ptype;
645 int ret;
646
647 ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
648 if (ret)
649 return ret;
650
651 if (core->res->hfi_version == HFI_VERSION_1XX) {
652 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
653 ret = hfi_session_set_property(inst, ptype, &en);
654 if (ret)
655 return ret;
656 }
657
658 /* Force searching UBWC formats for bigger then HD resolutions */
659 if (width > 1920 && height > ALIGN(1080, 32))
660 ubwc = true;
661
662 /* For Venus v4 UBWC format is mandatory */
663 if (IS_V4(core))
664 ubwc = true;
665
666 ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
667 &out2_fmt, ubwc);
668 if (ret)
669 return ret;
670
671 inst->output_buf_size =
672 venus_helper_get_framesz_raw(out_fmt, width, height);
673 inst->output2_buf_size =
674 venus_helper_get_framesz_raw(out2_fmt, width, height);
675
676 if (is_ubwc_fmt(out_fmt)) {
677 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
678 inst->opb_fmt = out2_fmt;
679 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
680 inst->dpb_fmt = out_fmt;
681 } else if (is_ubwc_fmt(out2_fmt)) {
682 inst->opb_buftype = HFI_BUFFER_OUTPUT;
683 inst->opb_fmt = out_fmt;
684 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
685 inst->dpb_fmt = out2_fmt;
686 } else {
687 inst->opb_buftype = HFI_BUFFER_OUTPUT;
688 inst->opb_fmt = out_fmt;
689 inst->dpb_buftype = 0;
690 inst->dpb_fmt = 0;
691 }
692
693 ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
694 inst->opb_buftype);
695 if (ret)
696 return ret;
697
698 if (inst->dpb_fmt) {
699 ret = venus_helper_set_multistream(inst, false, true);
700 if (ret)
701 return ret;
702
703 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
704 inst->dpb_buftype);
705 if (ret)
706 return ret;
707
708 ret = venus_helper_set_output_resolution(inst, width, height,
709 HFI_BUFFER_OUTPUT2);
710 if (ret)
711 return ret;
712 }
713
714 if (IS_V3(core) || IS_V4(core)) {
715 if (inst->output2_buf_size) {
716 ret = venus_helper_set_bufsize(inst,
717 inst->output2_buf_size,
718 HFI_BUFFER_OUTPUT2);
719 if (ret)
720 return ret;
721 }
722
723 if (inst->output_buf_size) {
724 ret = venus_helper_set_bufsize(inst,
725 inst->output_buf_size,
726 HFI_BUFFER_OUTPUT);
727 if (ret)
728 return ret;
729 }
730 }
731
732 ret = venus_helper_set_dyn_bufmode(inst);
733 if (ret)
734 return ret;
735
736 return 0;
737 }
738
739 static int vdec_session_init(struct venus_inst *inst)
740 {
741 int ret;
742
743 ret = hfi_session_init(inst, inst->fmt_out->pixfmt);
744 if (ret == -EINVAL)
745 return 0;
746 else if (ret)
747 return ret;
748
749 ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
750 frame_height_min(inst));
751 if (ret)
752 goto deinit;
753
754 ret = venus_helper_init_codec_freq_data(inst);
755 if (ret)
756 goto deinit;
757
758 return 0;
759 deinit:
760 hfi_session_deinit(inst);
761 return ret;
762 }
763
764 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
765 unsigned int *out_num)
766 {
767 enum hfi_version ver = inst->core->res->hfi_version;
768 struct hfi_buffer_requirements bufreq;
769 int ret;
770
771 *in_num = *out_num = 0;
772
773 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
774 if (ret)
775 return ret;
776
777 *in_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
778
779 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
780 if (ret)
781 return ret;
782
783 *out_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
784
785 return 0;
786 }
787
788 static int vdec_queue_setup(struct vb2_queue *q,
789 unsigned int *num_buffers, unsigned int *num_planes,
790 unsigned int sizes[], struct device *alloc_devs[])
791 {
792 struct venus_inst *inst = vb2_get_drv_priv(q);
793 unsigned int in_num, out_num;
794 int ret = 0;
795
796 if (*num_planes) {
797 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
798
799 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
800 *num_planes != inst->fmt_out->num_planes)
801 return -EINVAL;
802
803 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
804 *num_planes != inst->fmt_cap->num_planes)
805 return -EINVAL;
806
807 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
808 sizes[0] < inst->input_buf_size)
809 return -EINVAL;
810
811 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
812 sizes[0] < output_buf_size)
813 return -EINVAL;
814
815 return 0;
816 }
817
818 ret = vdec_pm_get(inst);
819 if (ret)
820 return ret;
821
822 ret = vdec_session_init(inst);
823 if (ret)
824 goto put_power;
825
826 ret = vdec_num_buffers(inst, &in_num, &out_num);
827 if (ret)
828 goto put_power;
829
830 ret = vdec_pm_put(inst, false);
831 if (ret)
832 return ret;
833
834 switch (q->type) {
835 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
836 *num_planes = inst->fmt_out->num_planes;
837 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
838 inst->out_width,
839 inst->out_height);
840 sizes[0] = max(sizes[0], inst->input_buf_size);
841 inst->input_buf_size = sizes[0];
842 *num_buffers = max(*num_buffers, in_num);
843 inst->num_input_bufs = *num_buffers;
844 inst->num_output_bufs = out_num;
845 break;
846 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
847 *num_planes = inst->fmt_cap->num_planes;
848 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
849 inst->width,
850 inst->height);
851 inst->output_buf_size = sizes[0];
852 *num_buffers = max(*num_buffers, out_num);
853 inst->num_output_bufs = *num_buffers;
854
855 mutex_lock(&inst->lock);
856 if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
857 inst->codec_state = VENUS_DEC_STATE_STOPPED;
858 mutex_unlock(&inst->lock);
859 break;
860 default:
861 ret = -EINVAL;
862 break;
863 }
864
865 return ret;
866
867 put_power:
868 vdec_pm_put(inst, false);
869 return ret;
870 }
871
872 static int vdec_verify_conf(struct venus_inst *inst)
873 {
874 enum hfi_version ver = inst->core->res->hfi_version;
875 struct hfi_buffer_requirements bufreq;
876 int ret;
877
878 if (!inst->num_input_bufs || !inst->num_output_bufs)
879 return -EINVAL;
880
881 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
882 if (ret)
883 return ret;
884
885 if (inst->num_output_bufs < bufreq.count_actual ||
886 inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
887 return -EINVAL;
888
889 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
890 if (ret)
891 return ret;
892
893 if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
894 return -EINVAL;
895
896 return 0;
897 }
898
899 static int vdec_start_capture(struct venus_inst *inst)
900 {
901 int ret;
902
903 if (!inst->streamon_out)
904 return 0;
905
906 if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
907 if (inst->reconfig)
908 goto reconfigure;
909
910 venus_helper_queue_dpb_bufs(inst);
911 venus_helper_process_initial_cap_bufs(inst);
912 inst->streamon_cap = 1;
913 return 0;
914 }
915
916 if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
917 return 0;
918
919 reconfigure:
920 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
921 if (ret)
922 return ret;
923
924 ret = vdec_output_conf(inst);
925 if (ret)
926 return ret;
927
928 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
929 VB2_MAX_FRAME, VB2_MAX_FRAME);
930 if (ret)
931 return ret;
932
933 ret = venus_helper_intbufs_realloc(inst);
934 if (ret)
935 goto err;
936
937 ret = venus_helper_alloc_dpb_bufs(inst);
938 if (ret)
939 goto err;
940
941 ret = venus_helper_queue_dpb_bufs(inst);
942 if (ret)
943 goto free_dpb_bufs;
944
945 ret = venus_helper_process_initial_cap_bufs(inst);
946 if (ret)
947 goto free_dpb_bufs;
948
949 venus_pm_load_scale(inst);
950
951 ret = hfi_session_continue(inst);
952 if (ret)
953 goto free_dpb_bufs;
954
955 inst->codec_state = VENUS_DEC_STATE_DECODING;
956
957 inst->streamon_cap = 1;
958 inst->sequence_cap = 0;
959 inst->reconfig = false;
960
961 return 0;
962
963 free_dpb_bufs:
964 venus_helper_free_dpb_bufs(inst);
965 err:
966 return ret;
967 }
968
969 static int vdec_start_output(struct venus_inst *inst)
970 {
971 int ret;
972
973 if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
974 ret = venus_helper_process_initial_out_bufs(inst);
975 inst->codec_state = VENUS_DEC_STATE_DECODING;
976 goto done;
977 }
978
979 if (inst->codec_state == VENUS_DEC_STATE_INIT ||
980 inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
981 ret = venus_helper_process_initial_out_bufs(inst);
982 goto done;
983 }
984
985 if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
986 return -EINVAL;
987
988 venus_helper_init_instance(inst);
989 inst->sequence_out = 0;
990 inst->reconfig = false;
991
992 ret = vdec_set_properties(inst);
993 if (ret)
994 return ret;
995
996 ret = vdec_output_conf(inst);
997 if (ret)
998 return ret;
999
1000 ret = vdec_verify_conf(inst);
1001 if (ret)
1002 return ret;
1003
1004 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1005 VB2_MAX_FRAME, VB2_MAX_FRAME);
1006 if (ret)
1007 return ret;
1008
1009 ret = venus_helper_vb2_start_streaming(inst);
1010 if (ret)
1011 return ret;
1012
1013 ret = venus_helper_process_initial_out_bufs(inst);
1014 if (ret)
1015 return ret;
1016
1017 inst->codec_state = VENUS_DEC_STATE_INIT;
1018
1019 done:
1020 inst->streamon_out = 1;
1021 return ret;
1022 }
1023
1024 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1025 {
1026 struct venus_inst *inst = vb2_get_drv_priv(q);
1027 int ret;
1028
1029 mutex_lock(&inst->lock);
1030
1031 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1032 ret = vdec_start_capture(inst);
1033 } else {
1034 ret = vdec_pm_get(inst);
1035 if (ret)
1036 goto error;
1037
1038 ret = venus_pm_acquire_core(inst);
1039 if (ret)
1040 goto put_power;
1041
1042 ret = vdec_pm_put(inst, true);
1043 if (ret)
1044 goto error;
1045
1046 ret = vdec_start_output(inst);
1047 }
1048
1049 if (ret)
1050 goto error;
1051
1052 mutex_unlock(&inst->lock);
1053 return 0;
1054
1055 put_power:
1056 vdec_pm_put(inst, false);
1057 error:
1058 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1059 mutex_unlock(&inst->lock);
1060 return ret;
1061 }
1062
1063 static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1064 {
1065 struct vb2_v4l2_buffer *buf;
1066
1067 while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1068 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1069 }
1070
1071 static int vdec_stop_capture(struct venus_inst *inst)
1072 {
1073 int ret = 0;
1074
1075 switch (inst->codec_state) {
1076 case VENUS_DEC_STATE_DECODING:
1077 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1078 fallthrough;
1079 case VENUS_DEC_STATE_DRAIN:
1080 vdec_cancel_dst_buffers(inst);
1081 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1082 break;
1083 case VENUS_DEC_STATE_DRC:
1084 WARN_ON(1);
1085 fallthrough;
1086 case VENUS_DEC_STATE_DRC_FLUSH_DONE:
1087 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1088 venus_helper_free_dpb_bufs(inst);
1089 break;
1090 default:
1091 break;
1092 }
1093
1094 return ret;
1095 }
1096
1097 static int vdec_stop_output(struct venus_inst *inst)
1098 {
1099 int ret = 0;
1100
1101 switch (inst->codec_state) {
1102 case VENUS_DEC_STATE_DECODING:
1103 case VENUS_DEC_STATE_DRAIN:
1104 case VENUS_DEC_STATE_STOPPED:
1105 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1106 inst->codec_state = VENUS_DEC_STATE_SEEK;
1107 break;
1108 case VENUS_DEC_STATE_INIT:
1109 case VENUS_DEC_STATE_CAPTURE_SETUP:
1110 ret = hfi_session_flush(inst, HFI_FLUSH_INPUT, true);
1111 break;
1112 default:
1113 break;
1114 }
1115
1116 return ret;
1117 }
1118
1119 static void vdec_stop_streaming(struct vb2_queue *q)
1120 {
1121 struct venus_inst *inst = vb2_get_drv_priv(q);
1122 int ret = -EINVAL;
1123
1124 mutex_lock(&inst->lock);
1125
1126 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1127 ret = vdec_stop_capture(inst);
1128 else
1129 ret = vdec_stop_output(inst);
1130
1131 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1132
1133 if (ret)
1134 goto unlock;
1135
1136 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1137 inst->streamon_out = 0;
1138 else
1139 inst->streamon_cap = 0;
1140
1141 unlock:
1142 mutex_unlock(&inst->lock);
1143 }
1144
1145 static void vdec_session_release(struct venus_inst *inst)
1146 {
1147 struct venus_core *core = inst->core;
1148 int ret, abort = 0;
1149
1150 vdec_pm_get(inst);
1151
1152 mutex_lock(&inst->lock);
1153 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1154
1155 ret = hfi_session_stop(inst);
1156 abort = (ret && ret != -EINVAL) ? 1 : 0;
1157 ret = hfi_session_unload_res(inst);
1158 abort = (ret && ret != -EINVAL) ? 1 : 0;
1159 ret = venus_helper_unregister_bufs(inst);
1160 abort = (ret && ret != -EINVAL) ? 1 : 0;
1161 ret = venus_helper_intbufs_free(inst);
1162 abort = (ret && ret != -EINVAL) ? 1 : 0;
1163 ret = hfi_session_deinit(inst);
1164 abort = (ret && ret != -EINVAL) ? 1 : 0;
1165
1166 if (inst->session_error || core->sys_error)
1167 abort = 1;
1168
1169 if (abort)
1170 hfi_session_abort(inst);
1171
1172 venus_helper_free_dpb_bufs(inst);
1173 venus_pm_load_scale(inst);
1174 INIT_LIST_HEAD(&inst->registeredbufs);
1175 mutex_unlock(&inst->lock);
1176
1177 venus_pm_release_core(inst);
1178 vdec_pm_put(inst, false);
1179 }
1180
1181 static int vdec_buf_init(struct vb2_buffer *vb)
1182 {
1183 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1184
1185 inst->buf_count++;
1186
1187 return venus_helper_vb2_buf_init(vb);
1188 }
1189
1190 static void vdec_buf_cleanup(struct vb2_buffer *vb)
1191 {
1192 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1193 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1194 struct venus_buffer *buf = to_venus_buffer(vbuf);
1195
1196 mutex_lock(&inst->lock);
1197 if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1198 if (!list_empty(&inst->registeredbufs))
1199 list_del_init(&buf->reg_list);
1200 mutex_unlock(&inst->lock);
1201
1202 inst->buf_count--;
1203 if (!inst->buf_count)
1204 vdec_session_release(inst);
1205 }
1206
1207 static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1208 {
1209 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1210
1211 vdec_pm_get_put(inst);
1212
1213 venus_helper_vb2_buf_queue(vb);
1214 }
1215
1216 static const struct vb2_ops vdec_vb2_ops = {
1217 .queue_setup = vdec_queue_setup,
1218 .buf_init = vdec_buf_init,
1219 .buf_cleanup = vdec_buf_cleanup,
1220 .buf_prepare = venus_helper_vb2_buf_prepare,
1221 .start_streaming = vdec_start_streaming,
1222 .stop_streaming = vdec_stop_streaming,
1223 .buf_queue = vdec_vb2_buf_queue,
1224 };
1225
1226 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1227 u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1228 u32 hfi_flags, u64 timestamp_us)
1229 {
1230 enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1231 struct vb2_v4l2_buffer *vbuf;
1232 struct vb2_buffer *vb;
1233 unsigned int type;
1234
1235 vdec_pm_touch(inst);
1236
1237 if (buf_type == HFI_BUFFER_INPUT)
1238 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1239 else
1240 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1241
1242 vbuf = venus_helper_find_buf(inst, type, tag);
1243 if (!vbuf)
1244 return;
1245
1246 vbuf->flags = flags;
1247 vbuf->field = V4L2_FIELD_NONE;
1248 vb = &vbuf->vb2_buf;
1249
1250 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1251 vb2_set_plane_payload(vb, 0, bytesused);
1252 vb->planes[0].data_offset = data_offset;
1253 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1254 vbuf->sequence = inst->sequence_cap++;
1255
1256 if (inst->last_buf == vb) {
1257 inst->last_buf = NULL;
1258 vbuf->flags |= V4L2_BUF_FLAG_LAST;
1259 vb2_set_plane_payload(vb, 0, 0);
1260 vb->timestamp = 0;
1261 }
1262
1263 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1264 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1265
1266 v4l2_event_queue_fh(&inst->fh, &ev);
1267
1268 if (inst->codec_state == VENUS_DEC_STATE_DRAIN)
1269 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1270 }
1271
1272 if (!bytesused)
1273 state = VB2_BUF_STATE_ERROR;
1274 } else {
1275 vbuf->sequence = inst->sequence_out++;
1276 }
1277
1278 venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1279
1280 if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1281 venus_helper_acquire_buf_ref(vbuf);
1282
1283 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1284 state = VB2_BUF_STATE_ERROR;
1285
1286 if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1287 state = VB2_BUF_STATE_ERROR;
1288 vb2_set_plane_payload(vb, 0, 0);
1289 vb->timestamp = 0;
1290 }
1291
1292 v4l2_m2m_buf_done(vbuf, state);
1293 }
1294
1295 static void vdec_event_change(struct venus_inst *inst,
1296 struct hfi_event_data *ev_data, bool sufficient)
1297 {
1298 static const struct v4l2_event ev = {
1299 .type = V4L2_EVENT_SOURCE_CHANGE,
1300 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1301 struct device *dev = inst->core->dev_dec;
1302 struct v4l2_format format = {};
1303
1304 mutex_lock(&inst->lock);
1305
1306 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1307 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1308 format.fmt.pix_mp.width = ev_data->width;
1309 format.fmt.pix_mp.height = ev_data->height;
1310
1311 vdec_try_fmt_common(inst, &format);
1312
1313 inst->width = format.fmt.pix_mp.width;
1314 inst->height = format.fmt.pix_mp.height;
1315 /*
1316 * Some versions of the firmware do not report crop information for
1317 * all codecs. For these cases, set the crop to the coded resolution.
1318 */
1319 if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
1320 inst->crop.left = ev_data->input_crop.left;
1321 inst->crop.top = ev_data->input_crop.top;
1322 inst->crop.width = ev_data->input_crop.width;
1323 inst->crop.height = ev_data->input_crop.height;
1324 } else {
1325 inst->crop.left = 0;
1326 inst->crop.top = 0;
1327 inst->crop.width = ev_data->width;
1328 inst->crop.height = ev_data->height;
1329 }
1330
1331 inst->out_width = ev_data->width;
1332 inst->out_height = ev_data->height;
1333
1334 if (inst->bit_depth != ev_data->bit_depth)
1335 inst->bit_depth = ev_data->bit_depth;
1336
1337 dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1338 sufficient ? "" : "not", ev_data->width, ev_data->height);
1339
1340 if (sufficient) {
1341 hfi_session_continue(inst);
1342 } else {
1343 switch (inst->codec_state) {
1344 case VENUS_DEC_STATE_INIT:
1345 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1346 break;
1347 case VENUS_DEC_STATE_DECODING:
1348 inst->codec_state = VENUS_DEC_STATE_DRC;
1349 break;
1350 default:
1351 break;
1352 }
1353 }
1354
1355 /*
1356 * The assumption is that the firmware have to return the last buffer
1357 * before this event is received in the v4l2 driver. Also the firmware
1358 * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1359 */
1360
1361 if (!sufficient && inst->codec_state == VENUS_DEC_STATE_DRC) {
1362 struct vb2_v4l2_buffer *last;
1363 int ret;
1364
1365 last = v4l2_m2m_last_dst_buf(inst->m2m_ctx);
1366 if (last)
1367 inst->last_buf = &last->vb2_buf;
1368
1369 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1370 if (ret)
1371 dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1372 }
1373
1374 inst->reconfig = true;
1375 v4l2_event_queue_fh(&inst->fh, &ev);
1376 wake_up(&inst->reconf_wait);
1377
1378 mutex_unlock(&inst->lock);
1379 }
1380
1381 static void vdec_event_notify(struct venus_inst *inst, u32 event,
1382 struct hfi_event_data *data)
1383 {
1384 struct venus_core *core = inst->core;
1385 struct device *dev = core->dev_dec;
1386
1387 vdec_pm_touch(inst);
1388
1389 switch (event) {
1390 case EVT_SESSION_ERROR:
1391 inst->session_error = true;
1392 dev_err(dev, "dec: event session error %x\n", inst->error);
1393 break;
1394 case EVT_SYS_EVENT_CHANGE:
1395 switch (data->event_type) {
1396 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1397 vdec_event_change(inst, data, true);
1398 break;
1399 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1400 vdec_event_change(inst, data, false);
1401 break;
1402 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1403 venus_helper_release_buf_ref(inst, data->tag);
1404 break;
1405 default:
1406 break;
1407 }
1408 break;
1409 default:
1410 break;
1411 }
1412 }
1413
1414 static void vdec_flush_done(struct venus_inst *inst)
1415 {
1416 if (inst->codec_state == VENUS_DEC_STATE_DRC)
1417 inst->codec_state = VENUS_DEC_STATE_DRC_FLUSH_DONE;
1418 }
1419
1420 static const struct hfi_inst_ops vdec_hfi_ops = {
1421 .buf_done = vdec_buf_done,
1422 .event_notify = vdec_event_notify,
1423 .flush_done = vdec_flush_done,
1424 };
1425
1426 static void vdec_inst_init(struct venus_inst *inst)
1427 {
1428 inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1429 inst->fmt_out = &vdec_formats[6];
1430 inst->fmt_cap = &vdec_formats[0];
1431 inst->width = frame_width_min(inst);
1432 inst->height = ALIGN(frame_height_min(inst), 32);
1433 inst->crop.left = 0;
1434 inst->crop.top = 0;
1435 inst->crop.width = inst->width;
1436 inst->crop.height = inst->height;
1437 inst->out_width = frame_width_min(inst);
1438 inst->out_height = frame_height_min(inst);
1439 inst->fps = 30;
1440 inst->timeperframe.numerator = 1;
1441 inst->timeperframe.denominator = 30;
1442 inst->opb_buftype = HFI_BUFFER_OUTPUT;
1443 }
1444
1445 static void vdec_m2m_device_run(void *priv)
1446 {
1447 }
1448
1449 static const struct v4l2_m2m_ops vdec_m2m_ops = {
1450 .device_run = vdec_m2m_device_run,
1451 .job_abort = venus_helper_m2m_job_abort,
1452 };
1453
1454 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1455 struct vb2_queue *dst_vq)
1456 {
1457 struct venus_inst *inst = priv;
1458 int ret;
1459
1460 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1461 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1462 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1463 src_vq->ops = &vdec_vb2_ops;
1464 src_vq->mem_ops = &vb2_dma_sg_memops;
1465 src_vq->drv_priv = inst;
1466 src_vq->buf_struct_size = sizeof(struct venus_buffer);
1467 src_vq->allow_zero_bytesused = 1;
1468 src_vq->min_buffers_needed = 0;
1469 src_vq->dev = inst->core->dev;
1470 ret = vb2_queue_init(src_vq);
1471 if (ret)
1472 return ret;
1473
1474 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1475 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1476 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1477 dst_vq->ops = &vdec_vb2_ops;
1478 dst_vq->mem_ops = &vb2_dma_sg_memops;
1479 dst_vq->drv_priv = inst;
1480 dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1481 dst_vq->allow_zero_bytesused = 1;
1482 dst_vq->min_buffers_needed = 0;
1483 dst_vq->dev = inst->core->dev;
1484 return vb2_queue_init(dst_vq);
1485 }
1486
1487 static int vdec_open(struct file *file)
1488 {
1489 struct venus_core *core = video_drvdata(file);
1490 struct venus_inst *inst;
1491 int ret;
1492
1493 inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1494 if (!inst)
1495 return -ENOMEM;
1496
1497 INIT_LIST_HEAD(&inst->dpbbufs);
1498 INIT_LIST_HEAD(&inst->registeredbufs);
1499 INIT_LIST_HEAD(&inst->internalbufs);
1500 INIT_LIST_HEAD(&inst->list);
1501 mutex_init(&inst->lock);
1502
1503 inst->core = core;
1504 inst->session_type = VIDC_SESSION_TYPE_DEC;
1505 inst->num_output_bufs = 1;
1506 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1507 inst->buf_count = 0;
1508 inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1509 inst->core_acquired = false;
1510 inst->bit_depth = VIDC_BITDEPTH_8;
1511 init_waitqueue_head(&inst->reconf_wait);
1512 venus_helper_init_instance(inst);
1513
1514 ret = vdec_ctrl_init(inst);
1515 if (ret)
1516 goto err_free;
1517
1518 ret = hfi_session_create(inst, &vdec_hfi_ops);
1519 if (ret)
1520 goto err_ctrl_deinit;
1521
1522 vdec_inst_init(inst);
1523
1524 /*
1525 * create m2m device for every instance, the m2m context scheduling
1526 * is made by firmware side so we do not need to care about.
1527 */
1528 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1529 if (IS_ERR(inst->m2m_dev)) {
1530 ret = PTR_ERR(inst->m2m_dev);
1531 goto err_session_destroy;
1532 }
1533
1534 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1535 if (IS_ERR(inst->m2m_ctx)) {
1536 ret = PTR_ERR(inst->m2m_ctx);
1537 goto err_m2m_release;
1538 }
1539
1540 v4l2_fh_init(&inst->fh, core->vdev_dec);
1541
1542 inst->fh.ctrl_handler = &inst->ctrl_handler;
1543 v4l2_fh_add(&inst->fh);
1544 inst->fh.m2m_ctx = inst->m2m_ctx;
1545 file->private_data = &inst->fh;
1546
1547 return 0;
1548
1549 err_m2m_release:
1550 v4l2_m2m_release(inst->m2m_dev);
1551 err_session_destroy:
1552 hfi_session_destroy(inst);
1553 err_ctrl_deinit:
1554 vdec_ctrl_deinit(inst);
1555 err_free:
1556 kfree(inst);
1557 return ret;
1558 }
1559
1560 static int vdec_close(struct file *file)
1561 {
1562 struct venus_inst *inst = to_inst(file);
1563
1564 vdec_pm_get(inst);
1565
1566 v4l2_m2m_ctx_release(inst->m2m_ctx);
1567 v4l2_m2m_release(inst->m2m_dev);
1568 vdec_ctrl_deinit(inst);
1569 hfi_session_destroy(inst);
1570 mutex_destroy(&inst->lock);
1571 v4l2_fh_del(&inst->fh);
1572 v4l2_fh_exit(&inst->fh);
1573
1574 vdec_pm_put(inst, false);
1575
1576 kfree(inst);
1577 return 0;
1578 }
1579
1580 static const struct v4l2_file_operations vdec_fops = {
1581 .owner = THIS_MODULE,
1582 .open = vdec_open,
1583 .release = vdec_close,
1584 .unlocked_ioctl = video_ioctl2,
1585 .poll = v4l2_m2m_fop_poll,
1586 .mmap = v4l2_m2m_fop_mmap,
1587 };
1588
1589 static int vdec_probe(struct platform_device *pdev)
1590 {
1591 struct device *dev = &pdev->dev;
1592 struct video_device *vdev;
1593 struct venus_core *core;
1594 int ret;
1595
1596 if (!dev->parent)
1597 return -EPROBE_DEFER;
1598
1599 core = dev_get_drvdata(dev->parent);
1600 if (!core)
1601 return -EPROBE_DEFER;
1602
1603 platform_set_drvdata(pdev, core);
1604
1605 if (core->pm_ops->vdec_get) {
1606 ret = core->pm_ops->vdec_get(dev);
1607 if (ret)
1608 return ret;
1609 }
1610
1611 vdev = video_device_alloc();
1612 if (!vdev)
1613 return -ENOMEM;
1614
1615 strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1616 vdev->release = video_device_release;
1617 vdev->fops = &vdec_fops;
1618 vdev->ioctl_ops = &vdec_ioctl_ops;
1619 vdev->vfl_dir = VFL_DIR_M2M;
1620 vdev->v4l2_dev = &core->v4l2_dev;
1621 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1622
1623 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1624 if (ret)
1625 goto err_vdev_release;
1626
1627 core->vdev_dec = vdev;
1628 core->dev_dec = dev;
1629
1630 video_set_drvdata(vdev, core);
1631 pm_runtime_set_autosuspend_delay(dev, 2000);
1632 pm_runtime_use_autosuspend(dev);
1633 pm_runtime_enable(dev);
1634
1635 return 0;
1636
1637 err_vdev_release:
1638 video_device_release(vdev);
1639 return ret;
1640 }
1641
1642 static int vdec_remove(struct platform_device *pdev)
1643 {
1644 struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1645
1646 video_unregister_device(core->vdev_dec);
1647 pm_runtime_disable(core->dev_dec);
1648
1649 if (core->pm_ops->vdec_put)
1650 core->pm_ops->vdec_put(core->dev_dec);
1651
1652 return 0;
1653 }
1654
1655 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1656 {
1657 struct venus_core *core = dev_get_drvdata(dev);
1658 const struct venus_pm_ops *pm_ops = core->pm_ops;
1659 int ret = 0;
1660
1661 if (pm_ops->vdec_power)
1662 ret = pm_ops->vdec_power(dev, POWER_OFF);
1663
1664 return ret;
1665 }
1666
1667 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1668 {
1669 struct venus_core *core = dev_get_drvdata(dev);
1670 const struct venus_pm_ops *pm_ops = core->pm_ops;
1671 int ret = 0;
1672
1673 if (pm_ops->vdec_power)
1674 ret = pm_ops->vdec_power(dev, POWER_ON);
1675
1676 return ret;
1677 }
1678
1679 static const struct dev_pm_ops vdec_pm_ops = {
1680 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1681 pm_runtime_force_resume)
1682 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1683 };
1684
1685 static const struct of_device_id vdec_dt_match[] = {
1686 { .compatible = "venus-decoder" },
1687 { }
1688 };
1689 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1690
1691 static struct platform_driver qcom_venus_dec_driver = {
1692 .probe = vdec_probe,
1693 .remove = vdec_remove,
1694 .driver = {
1695 .name = "qcom-venus-decoder",
1696 .of_match_table = vdec_dt_match,
1697 .pm = &vdec_pm_ops,
1698 },
1699 };
1700 module_platform_driver(qcom_venus_dec_driver);
1701
1702 MODULE_ALIAS("platform:qcom-venus-decoder");
1703 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1704 MODULE_LICENSE("GPL v2");
Linux with added FPC-III support