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