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