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-contig.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 *
find_format(struct venus_inst * inst,u32 pixfmt,u32 type)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 *
find_format_by_index(struct venus_inst * inst,unsigned int index,u32 type)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 *
vdec_try_fmt_common(struct venus_inst * inst,struct v4l2_format * f)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
vdec_try_fmt(struct file * file,void * fh,struct v4l2_format * f)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
vdec_check_src_change(struct venus_inst * inst)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
vdec_g_fmt(struct file * file,void * fh,struct v4l2_format * f)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
vdec_s_fmt(struct file * file,void * fh,struct v4l2_format * f)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 inst->output2_buf_size =
338 venus_helper_get_framesz(pixfmt_cap, orig_pixmp.width, orig_pixmp.height);
339 }
340
341 return 0;
342 }
343
344 static int
vdec_g_selection(struct file * file,void * fh,struct v4l2_selection * s)345 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
346 {
347 struct venus_inst *inst = to_inst(file);
348
349 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
350 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
351 return -EINVAL;
352
353 s->r.top = 0;
354 s->r.left = 0;
355
356 switch (s->target) {
357 case V4L2_SEL_TGT_CROP_BOUNDS:
358 case V4L2_SEL_TGT_CROP_DEFAULT:
359 case V4L2_SEL_TGT_CROP:
360 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
361 return -EINVAL;
362 s->r.width = inst->out_width;
363 s->r.height = inst->out_height;
364 break;
365 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
366 case V4L2_SEL_TGT_COMPOSE_PADDED:
367 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
368 return -EINVAL;
369 s->r.width = inst->width;
370 s->r.height = inst->height;
371 break;
372 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
373 case V4L2_SEL_TGT_COMPOSE:
374 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
375 return -EINVAL;
376 s->r = inst->crop;
377 break;
378 default:
379 return -EINVAL;
380 }
381
382 return 0;
383 }
384
385 static int
vdec_querycap(struct file * file,void * fh,struct v4l2_capability * cap)386 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
387 {
388 strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
389 strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
390 strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
391
392 return 0;
393 }
394
vdec_enum_fmt(struct file * file,void * fh,struct v4l2_fmtdesc * f)395 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
396 {
397 struct venus_inst *inst = to_inst(file);
398 const struct venus_format *fmt;
399
400 memset(f->reserved, 0, sizeof(f->reserved));
401
402 fmt = find_format_by_index(inst, f->index, f->type);
403 if (!fmt)
404 return -EINVAL;
405
406 f->pixelformat = fmt->pixfmt;
407 f->flags = fmt->flags;
408
409 return 0;
410 }
411
vdec_s_parm(struct file * file,void * fh,struct v4l2_streamparm * a)412 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
413 {
414 struct venus_inst *inst = to_inst(file);
415 struct v4l2_captureparm *cap = &a->parm.capture;
416 struct v4l2_fract *timeperframe = &cap->timeperframe;
417 u64 us_per_frame, fps;
418
419 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
420 a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
421 return -EINVAL;
422
423 memset(cap->reserved, 0, sizeof(cap->reserved));
424 if (!timeperframe->denominator)
425 timeperframe->denominator = inst->timeperframe.denominator;
426 if (!timeperframe->numerator)
427 timeperframe->numerator = inst->timeperframe.numerator;
428 cap->readbuffers = 0;
429 cap->extendedmode = 0;
430 cap->capability = V4L2_CAP_TIMEPERFRAME;
431 us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
432 do_div(us_per_frame, timeperframe->denominator);
433
434 if (!us_per_frame)
435 return -EINVAL;
436
437 fps = (u64)USEC_PER_SEC;
438 do_div(fps, us_per_frame);
439
440 inst->fps = fps;
441 inst->timeperframe = *timeperframe;
442
443 return 0;
444 }
445
vdec_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)446 static int vdec_enum_framesizes(struct file *file, void *fh,
447 struct v4l2_frmsizeenum *fsize)
448 {
449 struct venus_inst *inst = to_inst(file);
450 const struct venus_format *fmt;
451
452 fmt = find_format(inst, fsize->pixel_format,
453 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
454 if (!fmt) {
455 fmt = find_format(inst, fsize->pixel_format,
456 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
457 if (!fmt)
458 return -EINVAL;
459 }
460
461 if (fsize->index)
462 return -EINVAL;
463
464 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
465
466 fsize->stepwise.min_width = frame_width_min(inst);
467 fsize->stepwise.max_width = frame_width_max(inst);
468 fsize->stepwise.step_width = frame_width_step(inst);
469 fsize->stepwise.min_height = frame_height_min(inst);
470 fsize->stepwise.max_height = frame_height_max(inst);
471 fsize->stepwise.step_height = frame_height_step(inst);
472
473 return 0;
474 }
475
vdec_subscribe_event(struct v4l2_fh * fh,const struct v4l2_event_subscription * sub)476 static int vdec_subscribe_event(struct v4l2_fh *fh,
477 const struct v4l2_event_subscription *sub)
478 {
479 struct venus_inst *inst = container_of(fh, struct venus_inst, fh);
480 int ret;
481
482 switch (sub->type) {
483 case V4L2_EVENT_EOS:
484 return v4l2_event_subscribe(fh, sub, 2, NULL);
485 case V4L2_EVENT_SOURCE_CHANGE:
486 ret = v4l2_src_change_event_subscribe(fh, sub);
487 if (ret)
488 return ret;
489 inst->subscriptions |= V4L2_EVENT_SOURCE_CHANGE;
490 return 0;
491 case V4L2_EVENT_CTRL:
492 return v4l2_ctrl_subscribe_event(fh, sub);
493 default:
494 return -EINVAL;
495 }
496 }
497
498 static int
vdec_decoder_cmd(struct file * file,void * fh,struct v4l2_decoder_cmd * cmd)499 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
500 {
501 struct venus_inst *inst = to_inst(file);
502 struct hfi_frame_data fdata = {0};
503 int ret;
504
505 ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
506 if (ret)
507 return ret;
508
509 mutex_lock(&inst->lock);
510
511 if (cmd->cmd == V4L2_DEC_CMD_STOP) {
512 /*
513 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on
514 * decoder input to signal EOS.
515 */
516 if (!(inst->streamon_out && inst->streamon_cap))
517 goto unlock;
518
519 fdata.buffer_type = HFI_BUFFER_INPUT;
520 fdata.flags |= HFI_BUFFERFLAG_EOS;
521 if (IS_V6(inst->core))
522 fdata.device_addr = 0;
523 else
524 fdata.device_addr = 0xdeadb000;
525
526 ret = hfi_session_process_buf(inst, &fdata);
527
528 if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
529 inst->codec_state = VENUS_DEC_STATE_DRAIN;
530 inst->drain_active = true;
531 }
532 }
533
534 unlock:
535 mutex_unlock(&inst->lock);
536 return ret;
537 }
538
539 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
540 .vidioc_querycap = vdec_querycap,
541 .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
542 .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
543 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
544 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
545 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
546 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
547 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
548 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
549 .vidioc_g_selection = vdec_g_selection,
550 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
551 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
552 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
553 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
554 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
555 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
556 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
557 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
558 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
559 .vidioc_s_parm = vdec_s_parm,
560 .vidioc_enum_framesizes = vdec_enum_framesizes,
561 .vidioc_subscribe_event = vdec_subscribe_event,
562 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
563 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
564 .vidioc_decoder_cmd = vdec_decoder_cmd,
565 };
566
vdec_pm_get(struct venus_inst * inst)567 static int vdec_pm_get(struct venus_inst *inst)
568 {
569 struct venus_core *core = inst->core;
570 struct device *dev = core->dev_dec;
571 int ret;
572
573 mutex_lock(&core->pm_lock);
574 ret = pm_runtime_resume_and_get(dev);
575 mutex_unlock(&core->pm_lock);
576
577 return ret;
578 }
579
vdec_pm_put(struct venus_inst * inst,bool autosuspend)580 static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
581 {
582 struct venus_core *core = inst->core;
583 struct device *dev = core->dev_dec;
584 int ret;
585
586 mutex_lock(&core->pm_lock);
587
588 if (autosuspend)
589 ret = pm_runtime_put_autosuspend(dev);
590 else
591 ret = pm_runtime_put_sync(dev);
592
593 mutex_unlock(&core->pm_lock);
594
595 return ret < 0 ? ret : 0;
596 }
597
vdec_pm_get_put(struct venus_inst * inst)598 static int vdec_pm_get_put(struct venus_inst *inst)
599 {
600 struct venus_core *core = inst->core;
601 struct device *dev = core->dev_dec;
602 int ret = 0;
603
604 mutex_lock(&core->pm_lock);
605
606 if (pm_runtime_suspended(dev)) {
607 ret = pm_runtime_resume_and_get(dev);
608 if (ret < 0)
609 goto error;
610
611 ret = pm_runtime_put_autosuspend(dev);
612 }
613
614 error:
615 mutex_unlock(&core->pm_lock);
616
617 return ret < 0 ? ret : 0;
618 }
619
vdec_pm_touch(struct venus_inst * inst)620 static void vdec_pm_touch(struct venus_inst *inst)
621 {
622 pm_runtime_mark_last_busy(inst->core->dev_dec);
623 }
624
vdec_set_properties(struct venus_inst * inst)625 static int vdec_set_properties(struct venus_inst *inst)
626 {
627 struct vdec_controls *ctr = &inst->controls.dec;
628 struct hfi_enable en = { .enable = 1 };
629 u32 ptype, decode_order, conceal;
630 int ret;
631
632 if (ctr->post_loop_deb_mode) {
633 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
634 ret = hfi_session_set_property(inst, ptype, &en);
635 if (ret)
636 return ret;
637 }
638
639 if (ctr->display_delay_enable && ctr->display_delay == 0) {
640 ptype = HFI_PROPERTY_PARAM_VDEC_OUTPUT_ORDER;
641 decode_order = HFI_OUTPUT_ORDER_DECODE;
642 ret = hfi_session_set_property(inst, ptype, &decode_order);
643 if (ret)
644 return ret;
645 }
646
647 ptype = HFI_PROPERTY_PARAM_VDEC_CONCEAL_COLOR;
648 conceal = ctr->conceal_color & 0xffff;
649 conceal |= ((ctr->conceal_color >> 16) & 0xffff) << 10;
650 conceal |= ((ctr->conceal_color >> 32) & 0xffff) << 20;
651
652 ret = hfi_session_set_property(inst, ptype, &conceal);
653 if (ret)
654 return ret;
655
656 return 0;
657 }
658
vdec_set_work_route(struct venus_inst * inst)659 static int vdec_set_work_route(struct venus_inst *inst)
660 {
661 u32 ptype = HFI_PROPERTY_PARAM_WORK_ROUTE;
662 struct hfi_video_work_route wr;
663
664 if (!IS_V6(inst->core))
665 return 0;
666
667 wr.video_work_route = inst->core->res->num_vpp_pipes;
668
669 return hfi_session_set_property(inst, ptype, &wr);
670 }
671
672 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
673
vdec_output_conf(struct venus_inst * inst)674 static int vdec_output_conf(struct venus_inst *inst)
675 {
676 struct venus_core *core = inst->core;
677 struct hfi_enable en = { .enable = 1 };
678 struct hfi_buffer_requirements bufreq;
679 u32 width = inst->out_width;
680 u32 height = inst->out_height;
681 u32 out_fmt, out2_fmt;
682 bool ubwc = false;
683 u32 ptype;
684 int ret;
685
686 ret = venus_helper_set_work_mode(inst);
687 if (ret)
688 return ret;
689
690 if (core->res->hfi_version == HFI_VERSION_1XX) {
691 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
692 ret = hfi_session_set_property(inst, ptype, &en);
693 if (ret)
694 return ret;
695 }
696
697 /* Force searching UBWC formats for bigger then HD resolutions */
698 if (width > 1920 && height > ALIGN(1080, 32))
699 ubwc = true;
700
701 /* For Venus v4/v6 UBWC format is mandatory */
702 if (IS_V4(core) || IS_V6(core))
703 ubwc = true;
704
705 ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
706 &out2_fmt, ubwc);
707 if (ret)
708 return ret;
709
710 inst->output_buf_size =
711 venus_helper_get_framesz_raw(out_fmt, width, height);
712 inst->output2_buf_size =
713 venus_helper_get_framesz_raw(out2_fmt, width, height);
714
715 if (is_ubwc_fmt(out_fmt)) {
716 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
717 inst->opb_fmt = out2_fmt;
718 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
719 inst->dpb_fmt = out_fmt;
720 } else if (is_ubwc_fmt(out2_fmt)) {
721 inst->opb_buftype = HFI_BUFFER_OUTPUT;
722 inst->opb_fmt = out_fmt;
723 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
724 inst->dpb_fmt = out2_fmt;
725 } else {
726 inst->opb_buftype = HFI_BUFFER_OUTPUT;
727 inst->opb_fmt = out_fmt;
728 inst->dpb_buftype = 0;
729 inst->dpb_fmt = 0;
730 }
731
732 ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
733 inst->opb_buftype);
734 if (ret)
735 return ret;
736
737 ret = venus_helper_set_format_constraints(inst);
738 if (ret)
739 return ret;
740
741 if (inst->dpb_fmt) {
742 ret = venus_helper_set_multistream(inst, false, true);
743 if (ret)
744 return ret;
745
746 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
747 inst->dpb_buftype);
748 if (ret)
749 return ret;
750
751 ret = venus_helper_set_output_resolution(inst, width, height,
752 HFI_BUFFER_OUTPUT2);
753 if (ret)
754 return ret;
755 }
756
757 if (IS_V3(core) || IS_V4(core) || IS_V6(core)) {
758 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
759 if (ret)
760 return ret;
761
762 if (bufreq.size > inst->output_buf_size)
763 return -EINVAL;
764
765 if (inst->dpb_fmt) {
766 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT2,
767 &bufreq);
768 if (ret)
769 return ret;
770
771 if (bufreq.size > inst->output2_buf_size)
772 return -EINVAL;
773 }
774
775 if (inst->output2_buf_size) {
776 ret = venus_helper_set_bufsize(inst,
777 inst->output2_buf_size,
778 HFI_BUFFER_OUTPUT2);
779 if (ret)
780 return ret;
781 }
782
783 if (inst->output_buf_size) {
784 ret = venus_helper_set_bufsize(inst,
785 inst->output_buf_size,
786 HFI_BUFFER_OUTPUT);
787 if (ret)
788 return ret;
789 }
790 }
791
792 ret = venus_helper_set_dyn_bufmode(inst);
793 if (ret)
794 return ret;
795
796 return 0;
797 }
798
vdec_session_init(struct venus_inst * inst)799 static int vdec_session_init(struct venus_inst *inst)
800 {
801 int ret;
802
803 ret = venus_helper_session_init(inst);
804 if (ret == -EALREADY)
805 return 0;
806 else if (ret)
807 return ret;
808
809 ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
810 frame_height_min(inst));
811 if (ret)
812 goto deinit;
813
814 return 0;
815 deinit:
816 hfi_session_deinit(inst);
817 return ret;
818 }
819
vdec_num_buffers(struct venus_inst * inst,unsigned int * in_num,unsigned int * out_num)820 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
821 unsigned int *out_num)
822 {
823 enum hfi_version ver = inst->core->res->hfi_version;
824 struct hfi_buffer_requirements bufreq;
825 int ret;
826
827 *in_num = *out_num = 0;
828
829 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
830 if (ret)
831 return ret;
832
833 *in_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
834
835 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
836 if (ret)
837 return ret;
838
839 *out_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
840
841 return 0;
842 }
843
vdec_queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])844 static int vdec_queue_setup(struct vb2_queue *q,
845 unsigned int *num_buffers, unsigned int *num_planes,
846 unsigned int sizes[], struct device *alloc_devs[])
847 {
848 struct venus_inst *inst = vb2_get_drv_priv(q);
849 struct venus_core *core = inst->core;
850 unsigned int in_num, out_num;
851 int ret = 0;
852
853 if (*num_planes) {
854 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
855
856 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
857 *num_planes != inst->fmt_out->num_planes)
858 return -EINVAL;
859
860 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
861 *num_planes != inst->fmt_cap->num_planes)
862 return -EINVAL;
863
864 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
865 sizes[0] < inst->input_buf_size)
866 return -EINVAL;
867
868 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
869 sizes[0] < output_buf_size)
870 return -EINVAL;
871
872 return 0;
873 }
874
875 if (test_bit(0, &core->sys_error)) {
876 if (inst->nonblock)
877 return -EAGAIN;
878
879 ret = wait_event_interruptible(core->sys_err_done,
880 !test_bit(0, &core->sys_error));
881 if (ret)
882 return ret;
883 }
884
885 ret = vdec_pm_get(inst);
886 if (ret)
887 return ret;
888
889 ret = vdec_session_init(inst);
890 if (ret)
891 goto put_power;
892
893 ret = vdec_num_buffers(inst, &in_num, &out_num);
894 if (ret)
895 goto put_power;
896
897 ret = vdec_pm_put(inst, false);
898 if (ret)
899 return ret;
900
901 switch (q->type) {
902 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
903 *num_planes = inst->fmt_out->num_planes;
904 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
905 inst->out_width,
906 inst->out_height);
907 sizes[0] = max(sizes[0], inst->input_buf_size);
908 inst->input_buf_size = sizes[0];
909 *num_buffers = max(*num_buffers, in_num);
910 inst->num_input_bufs = *num_buffers;
911 inst->num_output_bufs = out_num;
912 break;
913 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
914 *num_planes = inst->fmt_cap->num_planes;
915 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
916 inst->width,
917 inst->height);
918 inst->output_buf_size = sizes[0];
919 *num_buffers = max(*num_buffers, out_num);
920 inst->num_output_bufs = *num_buffers;
921
922 mutex_lock(&inst->lock);
923 if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
924 inst->codec_state = VENUS_DEC_STATE_STOPPED;
925 mutex_unlock(&inst->lock);
926 break;
927 default:
928 ret = -EINVAL;
929 break;
930 }
931
932 return ret;
933
934 put_power:
935 vdec_pm_put(inst, false);
936 return ret;
937 }
938
vdec_verify_conf(struct venus_inst * inst)939 static int vdec_verify_conf(struct venus_inst *inst)
940 {
941 enum hfi_version ver = inst->core->res->hfi_version;
942 struct hfi_buffer_requirements bufreq;
943 int ret;
944
945 if (!inst->num_input_bufs || !inst->num_output_bufs)
946 return -EINVAL;
947
948 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
949 if (ret)
950 return ret;
951
952 if (inst->num_output_bufs < bufreq.count_actual ||
953 inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
954 return -EINVAL;
955
956 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
957 if (ret)
958 return ret;
959
960 if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
961 return -EINVAL;
962
963 return 0;
964 }
965
vdec_start_capture(struct venus_inst * inst)966 static int vdec_start_capture(struct venus_inst *inst)
967 {
968 int ret;
969
970 if (!inst->streamon_out)
971 return 0;
972
973 if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
974 if (inst->reconfig)
975 goto reconfigure;
976
977 venus_helper_queue_dpb_bufs(inst);
978 venus_helper_process_initial_cap_bufs(inst);
979 inst->streamon_cap = 1;
980 return 0;
981 }
982
983 if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
984 return 0;
985
986 reconfigure:
987 ret = vdec_output_conf(inst);
988 if (ret)
989 return ret;
990
991 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
992 VB2_MAX_FRAME, VB2_MAX_FRAME);
993 if (ret)
994 return ret;
995
996 ret = venus_helper_intbufs_realloc(inst);
997 if (ret)
998 goto err;
999
1000 venus_pm_load_scale(inst);
1001
1002 inst->next_buf_last = false;
1003
1004 ret = venus_helper_alloc_dpb_bufs(inst);
1005 if (ret)
1006 goto err;
1007
1008 ret = hfi_session_continue(inst);
1009 if (ret)
1010 goto free_dpb_bufs;
1011
1012 ret = venus_helper_queue_dpb_bufs(inst);
1013 if (ret)
1014 goto free_dpb_bufs;
1015
1016 ret = venus_helper_process_initial_cap_bufs(inst);
1017 if (ret)
1018 goto free_dpb_bufs;
1019
1020 inst->codec_state = VENUS_DEC_STATE_DECODING;
1021
1022 if (inst->drain_active)
1023 inst->codec_state = VENUS_DEC_STATE_DRAIN;
1024
1025 inst->streamon_cap = 1;
1026 inst->sequence_cap = 0;
1027 inst->reconfig = false;
1028 inst->drain_active = false;
1029
1030 return 0;
1031
1032 free_dpb_bufs:
1033 venus_helper_free_dpb_bufs(inst);
1034 err:
1035 return ret;
1036 }
1037
vdec_start_output(struct venus_inst * inst)1038 static int vdec_start_output(struct venus_inst *inst)
1039 {
1040 int ret;
1041
1042 if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
1043 ret = venus_helper_process_initial_out_bufs(inst);
1044 if (inst->next_buf_last)
1045 inst->codec_state = VENUS_DEC_STATE_DRC;
1046 else
1047 inst->codec_state = VENUS_DEC_STATE_DECODING;
1048 goto done;
1049 }
1050
1051 if (inst->codec_state == VENUS_DEC_STATE_INIT ||
1052 inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
1053 ret = venus_helper_process_initial_out_bufs(inst);
1054 goto done;
1055 }
1056
1057 if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
1058 return -EINVAL;
1059
1060 venus_helper_init_instance(inst);
1061 inst->sequence_out = 0;
1062 inst->reconfig = false;
1063 inst->next_buf_last = false;
1064
1065 ret = vdec_set_properties(inst);
1066 if (ret)
1067 return ret;
1068
1069 ret = vdec_set_work_route(inst);
1070 if (ret)
1071 return ret;
1072
1073 ret = vdec_output_conf(inst);
1074 if (ret)
1075 return ret;
1076
1077 ret = vdec_verify_conf(inst);
1078 if (ret)
1079 return ret;
1080
1081 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1082 VB2_MAX_FRAME, VB2_MAX_FRAME);
1083 if (ret)
1084 return ret;
1085
1086 ret = venus_helper_vb2_start_streaming(inst);
1087 if (ret)
1088 return ret;
1089
1090 ret = venus_helper_process_initial_out_bufs(inst);
1091 if (ret)
1092 return ret;
1093
1094 inst->codec_state = VENUS_DEC_STATE_INIT;
1095
1096 done:
1097 inst->streamon_out = 1;
1098 return ret;
1099 }
1100
vdec_start_streaming(struct vb2_queue * q,unsigned int count)1101 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1102 {
1103 struct venus_inst *inst = vb2_get_drv_priv(q);
1104 int ret;
1105
1106 mutex_lock(&inst->lock);
1107
1108 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1109 ret = vdec_start_capture(inst);
1110 } else {
1111 ret = vdec_pm_get(inst);
1112 if (ret)
1113 goto error;
1114
1115 ret = venus_pm_acquire_core(inst);
1116 if (ret)
1117 goto put_power;
1118
1119 ret = vdec_pm_put(inst, true);
1120 if (ret)
1121 goto error;
1122
1123 ret = vdec_start_output(inst);
1124 }
1125
1126 if (ret)
1127 goto error;
1128
1129 mutex_unlock(&inst->lock);
1130 return 0;
1131
1132 put_power:
1133 vdec_pm_put(inst, false);
1134 error:
1135 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1136 mutex_unlock(&inst->lock);
1137 return ret;
1138 }
1139
vdec_cancel_dst_buffers(struct venus_inst * inst)1140 static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1141 {
1142 struct vb2_v4l2_buffer *buf;
1143
1144 while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1145 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1146 }
1147
vdec_stop_capture(struct venus_inst * inst)1148 static int vdec_stop_capture(struct venus_inst *inst)
1149 {
1150 int ret = 0;
1151
1152 switch (inst->codec_state) {
1153 case VENUS_DEC_STATE_DECODING:
1154 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1155 fallthrough;
1156 case VENUS_DEC_STATE_DRAIN:
1157 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1158 inst->drain_active = false;
1159 fallthrough;
1160 case VENUS_DEC_STATE_SEEK:
1161 vdec_cancel_dst_buffers(inst);
1162 break;
1163 case VENUS_DEC_STATE_DRC:
1164 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
1165 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1166 venus_helper_free_dpb_bufs(inst);
1167 break;
1168 default:
1169 break;
1170 }
1171
1172 return ret;
1173 }
1174
vdec_stop_output(struct venus_inst * inst)1175 static int vdec_stop_output(struct venus_inst *inst)
1176 {
1177 int ret = 0;
1178
1179 switch (inst->codec_state) {
1180 case VENUS_DEC_STATE_DECODING:
1181 case VENUS_DEC_STATE_DRAIN:
1182 case VENUS_DEC_STATE_STOPPED:
1183 case VENUS_DEC_STATE_DRC:
1184 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1185 inst->codec_state = VENUS_DEC_STATE_SEEK;
1186 break;
1187 case VENUS_DEC_STATE_INIT:
1188 case VENUS_DEC_STATE_CAPTURE_SETUP:
1189 ret = hfi_session_flush(inst, HFI_FLUSH_INPUT, true);
1190 break;
1191 default:
1192 break;
1193 }
1194
1195 return ret;
1196 }
1197
vdec_stop_streaming(struct vb2_queue * q)1198 static void vdec_stop_streaming(struct vb2_queue *q)
1199 {
1200 struct venus_inst *inst = vb2_get_drv_priv(q);
1201 int ret = -EINVAL;
1202
1203 mutex_lock(&inst->lock);
1204
1205 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1206 ret = vdec_stop_capture(inst);
1207 else
1208 ret = vdec_stop_output(inst);
1209
1210 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1211
1212 inst->session_error = 0;
1213
1214 if (ret)
1215 goto unlock;
1216
1217 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1218 inst->streamon_out = 0;
1219 else
1220 inst->streamon_cap = 0;
1221
1222 unlock:
1223 mutex_unlock(&inst->lock);
1224 }
1225
vdec_session_release(struct venus_inst * inst)1226 static void vdec_session_release(struct venus_inst *inst)
1227 {
1228 struct venus_core *core = inst->core;
1229 int ret, abort = 0;
1230
1231 vdec_pm_get(inst);
1232
1233 mutex_lock(&inst->lock);
1234 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1235
1236 ret = hfi_session_stop(inst);
1237 abort = (ret && ret != -EINVAL) ? 1 : 0;
1238 ret = hfi_session_unload_res(inst);
1239 abort = (ret && ret != -EINVAL) ? 1 : 0;
1240 ret = venus_helper_unregister_bufs(inst);
1241 abort = (ret && ret != -EINVAL) ? 1 : 0;
1242 ret = venus_helper_intbufs_free(inst);
1243 abort = (ret && ret != -EINVAL) ? 1 : 0;
1244 ret = hfi_session_deinit(inst);
1245 abort = (ret && ret != -EINVAL) ? 1 : 0;
1246
1247 if (inst->session_error || test_bit(0, &core->sys_error))
1248 abort = 1;
1249
1250 if (abort)
1251 hfi_session_abort(inst);
1252
1253 venus_helper_free_dpb_bufs(inst);
1254 venus_pm_load_scale(inst);
1255 INIT_LIST_HEAD(&inst->registeredbufs);
1256 mutex_unlock(&inst->lock);
1257
1258 venus_pm_release_core(inst);
1259 vdec_pm_put(inst, false);
1260 }
1261
vdec_buf_init(struct vb2_buffer * vb)1262 static int vdec_buf_init(struct vb2_buffer *vb)
1263 {
1264 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1265
1266 inst->buf_count++;
1267
1268 return venus_helper_vb2_buf_init(vb);
1269 }
1270
vdec_buf_cleanup(struct vb2_buffer * vb)1271 static void vdec_buf_cleanup(struct vb2_buffer *vb)
1272 {
1273 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1274 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1275 struct venus_buffer *buf = to_venus_buffer(vbuf);
1276
1277 mutex_lock(&inst->lock);
1278 if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1279 if (!list_empty(&inst->registeredbufs))
1280 list_del_init(&buf->reg_list);
1281 mutex_unlock(&inst->lock);
1282
1283 inst->buf_count--;
1284 if (!inst->buf_count)
1285 vdec_session_release(inst);
1286 }
1287
vdec_vb2_buf_queue(struct vb2_buffer * vb)1288 static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1289 {
1290 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1291 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1292 static const struct v4l2_event eos = { .type = V4L2_EVENT_EOS };
1293
1294 vdec_pm_get_put(inst);
1295
1296 mutex_lock(&inst->lock);
1297
1298 if (inst->next_buf_last && V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
1299 inst->codec_state == VENUS_DEC_STATE_DRC) {
1300 vbuf->flags |= V4L2_BUF_FLAG_LAST;
1301 vbuf->sequence = inst->sequence_cap++;
1302 vbuf->field = V4L2_FIELD_NONE;
1303 vb2_set_plane_payload(vb, 0, 0);
1304 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1305 v4l2_event_queue_fh(&inst->fh, &eos);
1306 inst->next_buf_last = false;
1307 mutex_unlock(&inst->lock);
1308 return;
1309 }
1310
1311 venus_helper_vb2_buf_queue(vb);
1312 mutex_unlock(&inst->lock);
1313 }
1314
1315 static const struct vb2_ops vdec_vb2_ops = {
1316 .queue_setup = vdec_queue_setup,
1317 .buf_init = vdec_buf_init,
1318 .buf_cleanup = vdec_buf_cleanup,
1319 .buf_prepare = venus_helper_vb2_buf_prepare,
1320 .start_streaming = vdec_start_streaming,
1321 .stop_streaming = vdec_stop_streaming,
1322 .buf_queue = vdec_vb2_buf_queue,
1323 };
1324
vdec_buf_done(struct venus_inst * inst,unsigned int buf_type,u32 tag,u32 bytesused,u32 data_offset,u32 flags,u32 hfi_flags,u64 timestamp_us)1325 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1326 u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1327 u32 hfi_flags, u64 timestamp_us)
1328 {
1329 enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1330 struct vb2_v4l2_buffer *vbuf;
1331 struct vb2_buffer *vb;
1332 unsigned int type;
1333
1334 vdec_pm_touch(inst);
1335
1336 if (buf_type == HFI_BUFFER_INPUT)
1337 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1338 else
1339 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1340
1341 vbuf = venus_helper_find_buf(inst, type, tag);
1342 if (!vbuf) {
1343 venus_helper_change_dpb_owner(inst, vbuf, type, buf_type, tag);
1344 return;
1345 }
1346
1347 vbuf->flags = flags;
1348 vbuf->field = V4L2_FIELD_NONE;
1349 vb = &vbuf->vb2_buf;
1350
1351 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1352 vb2_set_plane_payload(vb, 0, bytesused);
1353 vb->planes[0].data_offset = data_offset;
1354 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1355 vbuf->sequence = inst->sequence_cap++;
1356
1357 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1358 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1359
1360 v4l2_event_queue_fh(&inst->fh, &ev);
1361
1362 if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
1363 inst->drain_active = false;
1364 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1365 }
1366 }
1367
1368 if (!bytesused)
1369 state = VB2_BUF_STATE_ERROR;
1370 } else {
1371 vbuf->sequence = inst->sequence_out++;
1372 }
1373
1374 venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1375
1376 if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1377 venus_helper_acquire_buf_ref(vbuf);
1378
1379 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1380 state = VB2_BUF_STATE_ERROR;
1381
1382 if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1383 state = VB2_BUF_STATE_ERROR;
1384 vb2_set_plane_payload(vb, 0, 0);
1385 vb->timestamp = 0;
1386 }
1387
1388 v4l2_m2m_buf_done(vbuf, state);
1389 }
1390
vdec_event_change(struct venus_inst * inst,struct hfi_event_data * ev_data,bool sufficient)1391 static void vdec_event_change(struct venus_inst *inst,
1392 struct hfi_event_data *ev_data, bool sufficient)
1393 {
1394 static const struct v4l2_event ev = {
1395 .type = V4L2_EVENT_SOURCE_CHANGE,
1396 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1397 struct device *dev = inst->core->dev_dec;
1398 struct v4l2_format format = {};
1399
1400 mutex_lock(&inst->lock);
1401
1402 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1403 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1404 format.fmt.pix_mp.width = ev_data->width;
1405 format.fmt.pix_mp.height = ev_data->height;
1406
1407 vdec_try_fmt_common(inst, &format);
1408
1409 inst->width = format.fmt.pix_mp.width;
1410 inst->height = format.fmt.pix_mp.height;
1411 /*
1412 * Some versions of the firmware do not report crop information for
1413 * all codecs. For these cases, set the crop to the coded resolution.
1414 */
1415 if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
1416 inst->crop.left = ev_data->input_crop.left;
1417 inst->crop.top = ev_data->input_crop.top;
1418 inst->crop.width = ev_data->input_crop.width;
1419 inst->crop.height = ev_data->input_crop.height;
1420 } else {
1421 inst->crop.left = 0;
1422 inst->crop.top = 0;
1423 inst->crop.width = ev_data->width;
1424 inst->crop.height = ev_data->height;
1425 }
1426
1427 inst->fw_min_cnt = ev_data->buf_count;
1428 /* overwriting this to 11 for vp9 due to fw bug */
1429 if (inst->hfi_codec == HFI_VIDEO_CODEC_VP9)
1430 inst->fw_min_cnt = 11;
1431
1432 inst->out_width = ev_data->width;
1433 inst->out_height = ev_data->height;
1434
1435 if (inst->bit_depth != ev_data->bit_depth)
1436 inst->bit_depth = ev_data->bit_depth;
1437
1438 if (inst->pic_struct != ev_data->pic_struct)
1439 inst->pic_struct = ev_data->pic_struct;
1440
1441 dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1442 sufficient ? "" : "not", ev_data->width, ev_data->height);
1443
1444 switch (inst->codec_state) {
1445 case VENUS_DEC_STATE_INIT:
1446 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1447 break;
1448 case VENUS_DEC_STATE_DECODING:
1449 case VENUS_DEC_STATE_DRAIN:
1450 inst->codec_state = VENUS_DEC_STATE_DRC;
1451 break;
1452 default:
1453 break;
1454 }
1455
1456 /*
1457 * The assumption is that the firmware have to return the last buffer
1458 * before this event is received in the v4l2 driver. Also the firmware
1459 * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1460 */
1461
1462 if (inst->codec_state == VENUS_DEC_STATE_DRC) {
1463 int ret;
1464
1465 inst->next_buf_last = true;
1466
1467 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1468 if (ret)
1469 dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1470 }
1471
1472 inst->next_buf_last = true;
1473 inst->reconfig = true;
1474 v4l2_event_queue_fh(&inst->fh, &ev);
1475 wake_up(&inst->reconf_wait);
1476
1477 mutex_unlock(&inst->lock);
1478 }
1479
vdec_event_notify(struct venus_inst * inst,u32 event,struct hfi_event_data * data)1480 static void vdec_event_notify(struct venus_inst *inst, u32 event,
1481 struct hfi_event_data *data)
1482 {
1483 struct venus_core *core = inst->core;
1484 struct device *dev = core->dev_dec;
1485
1486 vdec_pm_touch(inst);
1487
1488 switch (event) {
1489 case EVT_SESSION_ERROR:
1490 inst->session_error = true;
1491 venus_helper_vb2_queue_error(inst);
1492 dev_err(dev, "dec: event session error %x\n", inst->error);
1493 break;
1494 case EVT_SYS_EVENT_CHANGE:
1495 switch (data->event_type) {
1496 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1497 vdec_event_change(inst, data, true);
1498 break;
1499 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1500 vdec_event_change(inst, data, false);
1501 break;
1502 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1503 venus_helper_release_buf_ref(inst, data->tag);
1504 break;
1505 default:
1506 break;
1507 }
1508 break;
1509 default:
1510 break;
1511 }
1512 }
1513
vdec_flush_done(struct venus_inst * inst)1514 static void vdec_flush_done(struct venus_inst *inst)
1515 {
1516 dev_dbg(inst->core->dev_dec, VDBGH "flush done\n");
1517 }
1518
1519 static const struct hfi_inst_ops vdec_hfi_ops = {
1520 .buf_done = vdec_buf_done,
1521 .event_notify = vdec_event_notify,
1522 .flush_done = vdec_flush_done,
1523 };
1524
vdec_inst_init(struct venus_inst * inst)1525 static void vdec_inst_init(struct venus_inst *inst)
1526 {
1527 inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1528 inst->fmt_out = &vdec_formats[6];
1529 inst->fmt_cap = &vdec_formats[0];
1530 inst->width = frame_width_min(inst);
1531 inst->height = ALIGN(frame_height_min(inst), 32);
1532 inst->crop.left = 0;
1533 inst->crop.top = 0;
1534 inst->crop.width = inst->width;
1535 inst->crop.height = inst->height;
1536 inst->fw_min_cnt = 8;
1537 inst->out_width = frame_width_min(inst);
1538 inst->out_height = frame_height_min(inst);
1539 inst->fps = 30;
1540 inst->timeperframe.numerator = 1;
1541 inst->timeperframe.denominator = 30;
1542 inst->opb_buftype = HFI_BUFFER_OUTPUT;
1543 }
1544
vdec_m2m_device_run(void * priv)1545 static void vdec_m2m_device_run(void *priv)
1546 {
1547 }
1548
1549 static const struct v4l2_m2m_ops vdec_m2m_ops = {
1550 .device_run = vdec_m2m_device_run,
1551 .job_abort = venus_helper_m2m_job_abort,
1552 };
1553
m2m_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)1554 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1555 struct vb2_queue *dst_vq)
1556 {
1557 struct venus_inst *inst = priv;
1558 int ret;
1559
1560 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1561 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1562 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1563 src_vq->ops = &vdec_vb2_ops;
1564 src_vq->mem_ops = &vb2_dma_contig_memops;
1565 src_vq->drv_priv = inst;
1566 src_vq->buf_struct_size = sizeof(struct venus_buffer);
1567 src_vq->allow_zero_bytesused = 1;
1568 src_vq->min_buffers_needed = 0;
1569 src_vq->dev = inst->core->dev;
1570 ret = vb2_queue_init(src_vq);
1571 if (ret)
1572 return ret;
1573
1574 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1575 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1576 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1577 dst_vq->ops = &vdec_vb2_ops;
1578 dst_vq->mem_ops = &vb2_dma_contig_memops;
1579 dst_vq->drv_priv = inst;
1580 dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1581 dst_vq->allow_zero_bytesused = 1;
1582 dst_vq->min_buffers_needed = 0;
1583 dst_vq->dev = inst->core->dev;
1584 return vb2_queue_init(dst_vq);
1585 }
1586
vdec_open(struct file * file)1587 static int vdec_open(struct file *file)
1588 {
1589 struct venus_core *core = video_drvdata(file);
1590 struct venus_inst *inst;
1591 int ret;
1592
1593 inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1594 if (!inst)
1595 return -ENOMEM;
1596
1597 INIT_LIST_HEAD(&inst->dpbbufs);
1598 INIT_LIST_HEAD(&inst->registeredbufs);
1599 INIT_LIST_HEAD(&inst->internalbufs);
1600 INIT_LIST_HEAD(&inst->list);
1601 mutex_init(&inst->lock);
1602
1603 inst->core = core;
1604 inst->session_type = VIDC_SESSION_TYPE_DEC;
1605 inst->num_output_bufs = 1;
1606 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1607 inst->buf_count = 0;
1608 inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1609 inst->core_acquired = false;
1610 inst->bit_depth = VIDC_BITDEPTH_8;
1611 inst->pic_struct = HFI_INTERLACE_FRAME_PROGRESSIVE;
1612 init_waitqueue_head(&inst->reconf_wait);
1613 inst->nonblock = file->f_flags & O_NONBLOCK;
1614
1615 venus_helper_init_instance(inst);
1616
1617 ret = vdec_ctrl_init(inst);
1618 if (ret)
1619 goto err_free;
1620
1621 ret = hfi_session_create(inst, &vdec_hfi_ops);
1622 if (ret)
1623 goto err_ctrl_deinit;
1624
1625 vdec_inst_init(inst);
1626
1627 ida_init(&inst->dpb_ids);
1628
1629 /*
1630 * create m2m device for every instance, the m2m context scheduling
1631 * is made by firmware side so we do not need to care about.
1632 */
1633 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1634 if (IS_ERR(inst->m2m_dev)) {
1635 ret = PTR_ERR(inst->m2m_dev);
1636 goto err_session_destroy;
1637 }
1638
1639 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1640 if (IS_ERR(inst->m2m_ctx)) {
1641 ret = PTR_ERR(inst->m2m_ctx);
1642 goto err_m2m_release;
1643 }
1644
1645 v4l2_fh_init(&inst->fh, core->vdev_dec);
1646
1647 inst->fh.ctrl_handler = &inst->ctrl_handler;
1648 v4l2_fh_add(&inst->fh);
1649 inst->fh.m2m_ctx = inst->m2m_ctx;
1650 file->private_data = &inst->fh;
1651
1652 return 0;
1653
1654 err_m2m_release:
1655 v4l2_m2m_release(inst->m2m_dev);
1656 err_session_destroy:
1657 hfi_session_destroy(inst);
1658 err_ctrl_deinit:
1659 vdec_ctrl_deinit(inst);
1660 err_free:
1661 kfree(inst);
1662 return ret;
1663 }
1664
vdec_close(struct file * file)1665 static int vdec_close(struct file *file)
1666 {
1667 struct venus_inst *inst = to_inst(file);
1668
1669 vdec_pm_get(inst);
1670
1671 v4l2_m2m_ctx_release(inst->m2m_ctx);
1672 v4l2_m2m_release(inst->m2m_dev);
1673 vdec_ctrl_deinit(inst);
1674 ida_destroy(&inst->dpb_ids);
1675 hfi_session_destroy(inst);
1676 mutex_destroy(&inst->lock);
1677 v4l2_fh_del(&inst->fh);
1678 v4l2_fh_exit(&inst->fh);
1679
1680 vdec_pm_put(inst, false);
1681
1682 kfree(inst);
1683 return 0;
1684 }
1685
1686 static const struct v4l2_file_operations vdec_fops = {
1687 .owner = THIS_MODULE,
1688 .open = vdec_open,
1689 .release = vdec_close,
1690 .unlocked_ioctl = video_ioctl2,
1691 .poll = v4l2_m2m_fop_poll,
1692 .mmap = v4l2_m2m_fop_mmap,
1693 };
1694
vdec_probe(struct platform_device * pdev)1695 static int vdec_probe(struct platform_device *pdev)
1696 {
1697 struct device *dev = &pdev->dev;
1698 struct video_device *vdev;
1699 struct venus_core *core;
1700 int ret;
1701
1702 if (!dev->parent)
1703 return -EPROBE_DEFER;
1704
1705 core = dev_get_drvdata(dev->parent);
1706 if (!core)
1707 return -EPROBE_DEFER;
1708
1709 platform_set_drvdata(pdev, core);
1710
1711 if (core->pm_ops->vdec_get) {
1712 ret = core->pm_ops->vdec_get(dev);
1713 if (ret)
1714 return ret;
1715 }
1716
1717 vdev = video_device_alloc();
1718 if (!vdev)
1719 return -ENOMEM;
1720
1721 strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1722 vdev->release = video_device_release;
1723 vdev->fops = &vdec_fops;
1724 vdev->ioctl_ops = &vdec_ioctl_ops;
1725 vdev->vfl_dir = VFL_DIR_M2M;
1726 vdev->v4l2_dev = &core->v4l2_dev;
1727 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1728
1729 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1730 if (ret)
1731 goto err_vdev_release;
1732
1733 core->vdev_dec = vdev;
1734 core->dev_dec = dev;
1735
1736 video_set_drvdata(vdev, core);
1737 pm_runtime_set_autosuspend_delay(dev, 2000);
1738 pm_runtime_use_autosuspend(dev);
1739 pm_runtime_enable(dev);
1740
1741 return 0;
1742
1743 err_vdev_release:
1744 video_device_release(vdev);
1745 return ret;
1746 }
1747
vdec_remove(struct platform_device * pdev)1748 static int vdec_remove(struct platform_device *pdev)
1749 {
1750 struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1751
1752 video_unregister_device(core->vdev_dec);
1753 pm_runtime_disable(core->dev_dec);
1754
1755 if (core->pm_ops->vdec_put)
1756 core->pm_ops->vdec_put(core->dev_dec);
1757
1758 return 0;
1759 }
1760
vdec_runtime_suspend(struct device * dev)1761 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1762 {
1763 struct venus_core *core = dev_get_drvdata(dev);
1764 const struct venus_pm_ops *pm_ops = core->pm_ops;
1765 int ret = 0;
1766
1767 if (pm_ops->vdec_power)
1768 ret = pm_ops->vdec_power(dev, POWER_OFF);
1769
1770 return ret;
1771 }
1772
vdec_runtime_resume(struct device * dev)1773 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1774 {
1775 struct venus_core *core = dev_get_drvdata(dev);
1776 const struct venus_pm_ops *pm_ops = core->pm_ops;
1777 int ret = 0;
1778
1779 if (pm_ops->vdec_power)
1780 ret = pm_ops->vdec_power(dev, POWER_ON);
1781
1782 return ret;
1783 }
1784
1785 static const struct dev_pm_ops vdec_pm_ops = {
1786 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1787 pm_runtime_force_resume)
1788 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1789 };
1790
1791 static const struct of_device_id vdec_dt_match[] = {
1792 { .compatible = "venus-decoder" },
1793 { }
1794 };
1795 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1796
1797 static struct platform_driver qcom_venus_dec_driver = {
1798 .probe = vdec_probe,
1799 .remove = vdec_remove,
1800 .driver = {
1801 .name = "qcom-venus-decoder",
1802 .of_match_table = vdec_dt_match,
1803 .pm = &vdec_pm_ops,
1804 },
1805 };
1806 module_platform_driver(qcom_venus_dec_driver);
1807
1808 MODULE_ALIAS("platform:qcom-venus-decoder");
1809 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1810 MODULE_LICENSE("GPL v2");
1811