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 vb2_queue *dst_vq;
499 struct hfi_frame_data fdata = {0};
500 int ret;
501
502 ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
503 if (ret)
504 return ret;
505
506 mutex_lock(&inst->lock);
507
508 if (cmd->cmd == V4L2_DEC_CMD_STOP) {
509 /*
510 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on
511 * decoder input to signal EOS.
512 */
513 if (!(inst->streamon_out && inst->streamon_cap))
514 goto unlock;
515
516 fdata.buffer_type = HFI_BUFFER_INPUT;
517 fdata.flags |= HFI_BUFFERFLAG_EOS;
518 fdata.device_addr = 0xdeadb000;
519
520 ret = hfi_session_process_buf(inst, &fdata);
521
522 if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
523 inst->codec_state = VENUS_DEC_STATE_DRAIN;
524 inst->drain_active = true;
525 }
526 } else if (cmd->cmd == V4L2_DEC_CMD_START &&
527 inst->codec_state == VENUS_DEC_STATE_STOPPED) {
528 dst_vq = v4l2_m2m_get_vq(inst->fh.m2m_ctx,
529 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
530 vb2_clear_last_buffer_dequeued(dst_vq);
531
532 inst->codec_state = VENUS_DEC_STATE_DECODING;
533 }
534
535 unlock:
536 mutex_unlock(&inst->lock);
537 return ret;
538 }
539
540 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
541 .vidioc_querycap = vdec_querycap,
542 .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
543 .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
544 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
545 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
546 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
547 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
548 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
549 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
550 .vidioc_g_selection = vdec_g_selection,
551 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
552 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
553 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
554 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
555 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
556 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
557 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
558 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
559 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
560 .vidioc_s_parm = vdec_s_parm,
561 .vidioc_enum_framesizes = vdec_enum_framesizes,
562 .vidioc_subscribe_event = vdec_subscribe_event,
563 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
564 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
565 .vidioc_decoder_cmd = vdec_decoder_cmd,
566 };
567
vdec_pm_get(struct venus_inst *inst)568 static int vdec_pm_get(struct venus_inst *inst)
569 {
570 struct venus_core *core = inst->core;
571 struct device *dev = core->dev_dec;
572 int ret;
573
574 mutex_lock(&core->pm_lock);
575 ret = pm_runtime_get_sync(dev);
576 mutex_unlock(&core->pm_lock);
577
578 return ret < 0 ? ret : 0;
579 }
580
vdec_pm_put(struct venus_inst *inst, bool autosuspend)581 static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
582 {
583 struct venus_core *core = inst->core;
584 struct device *dev = core->dev_dec;
585 int ret;
586
587 mutex_lock(&core->pm_lock);
588
589 if (autosuspend)
590 ret = pm_runtime_put_autosuspend(dev);
591 else
592 ret = pm_runtime_put_sync(dev);
593
594 mutex_unlock(&core->pm_lock);
595
596 return ret < 0 ? ret : 0;
597 }
598
vdec_pm_get_put(struct venus_inst *inst)599 static int vdec_pm_get_put(struct venus_inst *inst)
600 {
601 struct venus_core *core = inst->core;
602 struct device *dev = core->dev_dec;
603 int ret = 0;
604
605 mutex_lock(&core->pm_lock);
606
607 if (pm_runtime_suspended(dev)) {
608 ret = pm_runtime_get_sync(dev);
609 if (ret < 0)
610 goto error;
611
612 ret = pm_runtime_put_autosuspend(dev);
613 }
614
615 error:
616 mutex_unlock(&core->pm_lock);
617
618 return ret < 0 ? ret : 0;
619 }
620
vdec_pm_touch(struct venus_inst *inst)621 static void vdec_pm_touch(struct venus_inst *inst)
622 {
623 pm_runtime_mark_last_busy(inst->core->dev_dec);
624 }
625
vdec_set_properties(struct venus_inst *inst)626 static int vdec_set_properties(struct venus_inst *inst)
627 {
628 struct vdec_controls *ctr = &inst->controls.dec;
629 struct hfi_enable en = { .enable = 1 };
630 u32 ptype;
631 int ret;
632
633 if (ctr->post_loop_deb_mode) {
634 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
635 ret = hfi_session_set_property(inst, ptype, &en);
636 if (ret)
637 return ret;
638 }
639
640 return 0;
641 }
642
643 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
644
vdec_output_conf(struct venus_inst *inst)645 static int vdec_output_conf(struct venus_inst *inst)
646 {
647 struct venus_core *core = inst->core;
648 struct hfi_enable en = { .enable = 1 };
649 struct hfi_buffer_requirements bufreq;
650 u32 width = inst->out_width;
651 u32 height = inst->out_height;
652 u32 out_fmt, out2_fmt;
653 bool ubwc = false;
654 u32 ptype;
655 int ret;
656
657 ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
658 if (ret)
659 return ret;
660
661 if (core->res->hfi_version == HFI_VERSION_1XX) {
662 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
663 ret = hfi_session_set_property(inst, ptype, &en);
664 if (ret)
665 return ret;
666 }
667
668 /* Force searching UBWC formats for bigger then HD resolutions */
669 if (width > 1920 && height > ALIGN(1080, 32))
670 ubwc = true;
671
672 /* For Venus v4 UBWC format is mandatory */
673 if (IS_V4(core))
674 ubwc = true;
675
676 ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
677 &out2_fmt, ubwc);
678 if (ret)
679 return ret;
680
681 inst->output_buf_size =
682 venus_helper_get_framesz_raw(out_fmt, width, height);
683 inst->output2_buf_size =
684 venus_helper_get_framesz_raw(out2_fmt, width, height);
685
686 if (is_ubwc_fmt(out_fmt)) {
687 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
688 inst->opb_fmt = out2_fmt;
689 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
690 inst->dpb_fmt = out_fmt;
691 } else if (is_ubwc_fmt(out2_fmt)) {
692 inst->opb_buftype = HFI_BUFFER_OUTPUT;
693 inst->opb_fmt = out_fmt;
694 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
695 inst->dpb_fmt = out2_fmt;
696 } else {
697 inst->opb_buftype = HFI_BUFFER_OUTPUT;
698 inst->opb_fmt = out_fmt;
699 inst->dpb_buftype = 0;
700 inst->dpb_fmt = 0;
701 }
702
703 ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
704 inst->opb_buftype);
705 if (ret)
706 return ret;
707
708 if (inst->dpb_fmt) {
709 ret = venus_helper_set_multistream(inst, false, true);
710 if (ret)
711 return ret;
712
713 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
714 inst->dpb_buftype);
715 if (ret)
716 return ret;
717
718 ret = venus_helper_set_output_resolution(inst, width, height,
719 HFI_BUFFER_OUTPUT2);
720 if (ret)
721 return ret;
722 }
723
724 if (IS_V3(core) || IS_V4(core)) {
725 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
726 if (ret)
727 return ret;
728
729 if (bufreq.size > inst->output_buf_size)
730 return -EINVAL;
731
732 if (inst->dpb_fmt) {
733 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT2,
734 &bufreq);
735 if (ret)
736 return ret;
737
738 if (bufreq.size > inst->output2_buf_size)
739 return -EINVAL;
740 }
741
742 if (inst->output2_buf_size) {
743 ret = venus_helper_set_bufsize(inst,
744 inst->output2_buf_size,
745 HFI_BUFFER_OUTPUT2);
746 if (ret)
747 return ret;
748 }
749
750 if (inst->output_buf_size) {
751 ret = venus_helper_set_bufsize(inst,
752 inst->output_buf_size,
753 HFI_BUFFER_OUTPUT);
754 if (ret)
755 return ret;
756 }
757 }
758
759 ret = venus_helper_set_dyn_bufmode(inst);
760 if (ret)
761 return ret;
762
763 return 0;
764 }
765
vdec_session_init(struct venus_inst *inst)766 static int vdec_session_init(struct venus_inst *inst)
767 {
768 int ret;
769
770 ret = hfi_session_init(inst, inst->fmt_out->pixfmt);
771 if (ret == -EINVAL)
772 return 0;
773 else if (ret)
774 return ret;
775
776 ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
777 frame_height_min(inst));
778 if (ret)
779 goto deinit;
780
781 ret = venus_helper_init_codec_freq_data(inst);
782 if (ret)
783 goto deinit;
784
785 return 0;
786 deinit:
787 hfi_session_deinit(inst);
788 return ret;
789 }
790
vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num, unsigned int *out_num)791 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
792 unsigned int *out_num)
793 {
794 enum hfi_version ver = inst->core->res->hfi_version;
795 struct hfi_buffer_requirements bufreq;
796 int ret;
797
798 *in_num = *out_num = 0;
799
800 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
801 if (ret)
802 return ret;
803
804 *in_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
805
806 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
807 if (ret)
808 return ret;
809
810 *out_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
811
812 return 0;
813 }
814
vdec_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, unsigned int *num_planes, unsigned int sizes[], struct device *alloc_devs[])815 static int vdec_queue_setup(struct vb2_queue *q,
816 unsigned int *num_buffers, unsigned int *num_planes,
817 unsigned int sizes[], struct device *alloc_devs[])
818 {
819 struct venus_inst *inst = vb2_get_drv_priv(q);
820 unsigned int in_num, out_num;
821 int ret = 0;
822
823 if (*num_planes) {
824 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
825
826 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
827 *num_planes != inst->fmt_out->num_planes)
828 return -EINVAL;
829
830 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
831 *num_planes != inst->fmt_cap->num_planes)
832 return -EINVAL;
833
834 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
835 sizes[0] < inst->input_buf_size)
836 return -EINVAL;
837
838 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
839 sizes[0] < output_buf_size)
840 return -EINVAL;
841
842 return 0;
843 }
844
845 ret = vdec_pm_get(inst);
846 if (ret)
847 return ret;
848
849 ret = vdec_session_init(inst);
850 if (ret)
851 goto put_power;
852
853 ret = vdec_num_buffers(inst, &in_num, &out_num);
854 if (ret)
855 goto put_power;
856
857 ret = vdec_pm_put(inst, false);
858 if (ret)
859 return ret;
860
861 switch (q->type) {
862 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
863 *num_planes = inst->fmt_out->num_planes;
864 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
865 inst->out_width,
866 inst->out_height);
867 sizes[0] = max(sizes[0], inst->input_buf_size);
868 inst->input_buf_size = sizes[0];
869 *num_buffers = max(*num_buffers, in_num);
870 inst->num_input_bufs = *num_buffers;
871 inst->num_output_bufs = out_num;
872 break;
873 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
874 *num_planes = inst->fmt_cap->num_planes;
875 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
876 inst->width,
877 inst->height);
878 inst->output_buf_size = sizes[0];
879 *num_buffers = max(*num_buffers, out_num);
880 inst->num_output_bufs = *num_buffers;
881
882 mutex_lock(&inst->lock);
883 if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
884 inst->codec_state = VENUS_DEC_STATE_STOPPED;
885 mutex_unlock(&inst->lock);
886 break;
887 default:
888 ret = -EINVAL;
889 break;
890 }
891
892 return ret;
893
894 put_power:
895 vdec_pm_put(inst, false);
896 return ret;
897 }
898
vdec_verify_conf(struct venus_inst *inst)899 static int vdec_verify_conf(struct venus_inst *inst)
900 {
901 enum hfi_version ver = inst->core->res->hfi_version;
902 struct hfi_buffer_requirements bufreq;
903 int ret;
904
905 if (!inst->num_input_bufs || !inst->num_output_bufs)
906 return -EINVAL;
907
908 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
909 if (ret)
910 return ret;
911
912 if (inst->num_output_bufs < bufreq.count_actual ||
913 inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
914 return -EINVAL;
915
916 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
917 if (ret)
918 return ret;
919
920 if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
921 return -EINVAL;
922
923 return 0;
924 }
925
vdec_start_capture(struct venus_inst *inst)926 static int vdec_start_capture(struct venus_inst *inst)
927 {
928 int ret;
929
930 if (!inst->streamon_out)
931 return 0;
932
933 if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
934 if (inst->reconfig)
935 goto reconfigure;
936
937 venus_helper_queue_dpb_bufs(inst);
938 venus_helper_process_initial_cap_bufs(inst);
939 inst->streamon_cap = 1;
940 return 0;
941 }
942
943 if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
944 return 0;
945
946 reconfigure:
947 ret = vdec_output_conf(inst);
948 if (ret)
949 return ret;
950
951 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
952 VB2_MAX_FRAME, VB2_MAX_FRAME);
953 if (ret)
954 return ret;
955
956 ret = venus_helper_intbufs_realloc(inst);
957 if (ret)
958 goto err;
959
960 ret = venus_helper_alloc_dpb_bufs(inst);
961 if (ret)
962 goto err;
963
964 ret = venus_helper_queue_dpb_bufs(inst);
965 if (ret)
966 goto free_dpb_bufs;
967
968 ret = venus_helper_process_initial_cap_bufs(inst);
969 if (ret)
970 goto free_dpb_bufs;
971
972 venus_pm_load_scale(inst);
973
974 inst->next_buf_last = false;
975
976 ret = hfi_session_continue(inst);
977 if (ret)
978 goto free_dpb_bufs;
979
980 inst->codec_state = VENUS_DEC_STATE_DECODING;
981
982 if (inst->drain_active)
983 inst->codec_state = VENUS_DEC_STATE_DRAIN;
984
985 inst->streamon_cap = 1;
986 inst->sequence_cap = 0;
987 inst->reconfig = false;
988 inst->drain_active = false;
989
990 return 0;
991
992 free_dpb_bufs:
993 venus_helper_free_dpb_bufs(inst);
994 err:
995 return ret;
996 }
997
vdec_start_output(struct venus_inst *inst)998 static int vdec_start_output(struct venus_inst *inst)
999 {
1000 int ret;
1001
1002 if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
1003 ret = venus_helper_process_initial_out_bufs(inst);
1004 if (inst->next_buf_last)
1005 inst->codec_state = VENUS_DEC_STATE_DRC;
1006 else
1007 inst->codec_state = VENUS_DEC_STATE_DECODING;
1008 goto done;
1009 }
1010
1011 if (inst->codec_state == VENUS_DEC_STATE_INIT ||
1012 inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
1013 ret = venus_helper_process_initial_out_bufs(inst);
1014 goto done;
1015 }
1016
1017 if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
1018 return -EINVAL;
1019
1020 venus_helper_init_instance(inst);
1021 inst->sequence_out = 0;
1022 inst->reconfig = false;
1023 inst->next_buf_last = false;
1024
1025 ret = vdec_set_properties(inst);
1026 if (ret)
1027 return ret;
1028
1029 ret = vdec_output_conf(inst);
1030 if (ret)
1031 return ret;
1032
1033 ret = vdec_verify_conf(inst);
1034 if (ret)
1035 return ret;
1036
1037 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1038 VB2_MAX_FRAME, VB2_MAX_FRAME);
1039 if (ret)
1040 return ret;
1041
1042 ret = venus_helper_vb2_start_streaming(inst);
1043 if (ret)
1044 return ret;
1045
1046 ret = venus_helper_process_initial_out_bufs(inst);
1047 if (ret)
1048 return ret;
1049
1050 inst->codec_state = VENUS_DEC_STATE_INIT;
1051
1052 done:
1053 inst->streamon_out = 1;
1054 return ret;
1055 }
1056
vdec_start_streaming(struct vb2_queue *q, unsigned int count)1057 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1058 {
1059 struct venus_inst *inst = vb2_get_drv_priv(q);
1060 int ret;
1061
1062 mutex_lock(&inst->lock);
1063
1064 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1065 ret = vdec_start_capture(inst);
1066 } else {
1067 ret = vdec_pm_get(inst);
1068 if (ret)
1069 goto error;
1070
1071 ret = venus_pm_acquire_core(inst);
1072 if (ret)
1073 goto put_power;
1074
1075 ret = vdec_pm_put(inst, true);
1076 if (ret)
1077 goto error;
1078
1079 ret = vdec_start_output(inst);
1080 }
1081
1082 if (ret)
1083 goto error;
1084
1085 mutex_unlock(&inst->lock);
1086 return 0;
1087
1088 put_power:
1089 vdec_pm_put(inst, false);
1090 error:
1091 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1092 mutex_unlock(&inst->lock);
1093 return ret;
1094 }
1095
vdec_cancel_dst_buffers(struct venus_inst *inst)1096 static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1097 {
1098 struct vb2_v4l2_buffer *buf;
1099
1100 while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1101 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1102 }
1103
vdec_stop_capture(struct venus_inst *inst)1104 static int vdec_stop_capture(struct venus_inst *inst)
1105 {
1106 int ret = 0;
1107
1108 switch (inst->codec_state) {
1109 case VENUS_DEC_STATE_DECODING:
1110 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1111 fallthrough;
1112 case VENUS_DEC_STATE_DRAIN:
1113 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1114 inst->drain_active = false;
1115 fallthrough;
1116 case VENUS_DEC_STATE_SEEK:
1117 vdec_cancel_dst_buffers(inst);
1118 break;
1119 case VENUS_DEC_STATE_DRC:
1120 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
1121 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1122 venus_helper_free_dpb_bufs(inst);
1123 break;
1124 default:
1125 break;
1126 }
1127
1128 return ret;
1129 }
1130
vdec_stop_output(struct venus_inst *inst)1131 static int vdec_stop_output(struct venus_inst *inst)
1132 {
1133 int ret = 0;
1134
1135 switch (inst->codec_state) {
1136 case VENUS_DEC_STATE_DECODING:
1137 case VENUS_DEC_STATE_DRAIN:
1138 case VENUS_DEC_STATE_STOPPED:
1139 case VENUS_DEC_STATE_DRC:
1140 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1141 inst->codec_state = VENUS_DEC_STATE_SEEK;
1142 break;
1143 case VENUS_DEC_STATE_INIT:
1144 case VENUS_DEC_STATE_CAPTURE_SETUP:
1145 ret = hfi_session_flush(inst, HFI_FLUSH_INPUT, true);
1146 break;
1147 default:
1148 break;
1149 }
1150
1151 return ret;
1152 }
1153
vdec_stop_streaming(struct vb2_queue *q)1154 static void vdec_stop_streaming(struct vb2_queue *q)
1155 {
1156 struct venus_inst *inst = vb2_get_drv_priv(q);
1157 int ret = -EINVAL;
1158
1159 mutex_lock(&inst->lock);
1160
1161 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1162 ret = vdec_stop_capture(inst);
1163 else
1164 ret = vdec_stop_output(inst);
1165
1166 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1167
1168 if (ret)
1169 goto unlock;
1170
1171 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1172 inst->streamon_out = 0;
1173 else
1174 inst->streamon_cap = 0;
1175
1176 unlock:
1177 mutex_unlock(&inst->lock);
1178 }
1179
vdec_session_release(struct venus_inst *inst)1180 static void vdec_session_release(struct venus_inst *inst)
1181 {
1182 struct venus_core *core = inst->core;
1183 int ret, abort = 0;
1184
1185 vdec_pm_get(inst);
1186
1187 mutex_lock(&inst->lock);
1188 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1189
1190 ret = hfi_session_stop(inst);
1191 abort = (ret && ret != -EINVAL) ? 1 : 0;
1192 ret = hfi_session_unload_res(inst);
1193 abort = (ret && ret != -EINVAL) ? 1 : 0;
1194 ret = venus_helper_unregister_bufs(inst);
1195 abort = (ret && ret != -EINVAL) ? 1 : 0;
1196 ret = venus_helper_intbufs_free(inst);
1197 abort = (ret && ret != -EINVAL) ? 1 : 0;
1198 ret = hfi_session_deinit(inst);
1199 abort = (ret && ret != -EINVAL) ? 1 : 0;
1200
1201 if (inst->session_error || core->sys_error)
1202 abort = 1;
1203
1204 if (abort)
1205 hfi_session_abort(inst);
1206
1207 venus_helper_free_dpb_bufs(inst);
1208 venus_pm_load_scale(inst);
1209 INIT_LIST_HEAD(&inst->registeredbufs);
1210 mutex_unlock(&inst->lock);
1211
1212 venus_pm_release_core(inst);
1213 vdec_pm_put(inst, false);
1214 }
1215
vdec_buf_init(struct vb2_buffer *vb)1216 static int vdec_buf_init(struct vb2_buffer *vb)
1217 {
1218 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1219
1220 inst->buf_count++;
1221
1222 return venus_helper_vb2_buf_init(vb);
1223 }
1224
vdec_buf_cleanup(struct vb2_buffer *vb)1225 static void vdec_buf_cleanup(struct vb2_buffer *vb)
1226 {
1227 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1228 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1229 struct venus_buffer *buf = to_venus_buffer(vbuf);
1230
1231 mutex_lock(&inst->lock);
1232 if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1233 if (!list_empty(&inst->registeredbufs))
1234 list_del_init(&buf->reg_list);
1235 mutex_unlock(&inst->lock);
1236
1237 inst->buf_count--;
1238 if (!inst->buf_count)
1239 vdec_session_release(inst);
1240 }
1241
vdec_vb2_buf_queue(struct vb2_buffer *vb)1242 static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1243 {
1244 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1245 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1246 static const struct v4l2_event eos = { .type = V4L2_EVENT_EOS };
1247
1248 vdec_pm_get_put(inst);
1249
1250 mutex_lock(&inst->lock);
1251
1252 if (inst->next_buf_last && V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
1253 inst->codec_state == VENUS_DEC_STATE_DRC) {
1254 vbuf->flags |= V4L2_BUF_FLAG_LAST;
1255 vbuf->sequence = inst->sequence_cap++;
1256 vbuf->field = V4L2_FIELD_NONE;
1257 vb2_set_plane_payload(vb, 0, 0);
1258 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1259 v4l2_event_queue_fh(&inst->fh, &eos);
1260 inst->next_buf_last = false;
1261 mutex_unlock(&inst->lock);
1262 return;
1263 }
1264
1265 mutex_unlock(&inst->lock);
1266
1267 venus_helper_vb2_buf_queue(vb);
1268 }
1269
1270 static const struct vb2_ops vdec_vb2_ops = {
1271 .queue_setup = vdec_queue_setup,
1272 .buf_init = vdec_buf_init,
1273 .buf_cleanup = vdec_buf_cleanup,
1274 .buf_prepare = venus_helper_vb2_buf_prepare,
1275 .start_streaming = vdec_start_streaming,
1276 .stop_streaming = vdec_stop_streaming,
1277 .buf_queue = vdec_vb2_buf_queue,
1278 };
1279
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)1280 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1281 u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1282 u32 hfi_flags, u64 timestamp_us)
1283 {
1284 enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1285 struct vb2_v4l2_buffer *vbuf;
1286 struct vb2_buffer *vb;
1287 unsigned int type;
1288
1289 vdec_pm_touch(inst);
1290
1291 if (buf_type == HFI_BUFFER_INPUT)
1292 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1293 else
1294 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1295
1296 vbuf = venus_helper_find_buf(inst, type, tag);
1297 if (!vbuf)
1298 return;
1299
1300 vbuf->flags = flags;
1301 vbuf->field = V4L2_FIELD_NONE;
1302 vb = &vbuf->vb2_buf;
1303
1304 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1305 vb2_set_plane_payload(vb, 0, bytesused);
1306 vb->planes[0].data_offset = data_offset;
1307 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1308 vbuf->sequence = inst->sequence_cap++;
1309
1310 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1311 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1312
1313 v4l2_event_queue_fh(&inst->fh, &ev);
1314
1315 if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
1316 inst->drain_active = false;
1317 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1318 }
1319 }
1320
1321 if (!bytesused)
1322 state = VB2_BUF_STATE_ERROR;
1323 } else {
1324 vbuf->sequence = inst->sequence_out++;
1325 }
1326
1327 venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1328
1329 if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1330 venus_helper_acquire_buf_ref(vbuf);
1331
1332 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1333 state = VB2_BUF_STATE_ERROR;
1334
1335 if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1336 state = VB2_BUF_STATE_ERROR;
1337 vb2_set_plane_payload(vb, 0, 0);
1338 vb->timestamp = 0;
1339 }
1340
1341 v4l2_m2m_buf_done(vbuf, state);
1342 }
1343
vdec_event_change(struct venus_inst *inst, struct hfi_event_data *ev_data, bool sufficient)1344 static void vdec_event_change(struct venus_inst *inst,
1345 struct hfi_event_data *ev_data, bool sufficient)
1346 {
1347 static const struct v4l2_event ev = {
1348 .type = V4L2_EVENT_SOURCE_CHANGE,
1349 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1350 struct device *dev = inst->core->dev_dec;
1351 struct v4l2_format format = {};
1352
1353 mutex_lock(&inst->lock);
1354
1355 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1356 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1357 format.fmt.pix_mp.width = ev_data->width;
1358 format.fmt.pix_mp.height = ev_data->height;
1359
1360 vdec_try_fmt_common(inst, &format);
1361
1362 inst->width = format.fmt.pix_mp.width;
1363 inst->height = format.fmt.pix_mp.height;
1364
1365 inst->out_width = ev_data->width;
1366 inst->out_height = ev_data->height;
1367
1368 if (inst->bit_depth != ev_data->bit_depth)
1369 inst->bit_depth = ev_data->bit_depth;
1370
1371 dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1372 sufficient ? "" : "not", ev_data->width, ev_data->height);
1373
1374 switch (inst->codec_state) {
1375 case VENUS_DEC_STATE_INIT:
1376 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1377 break;
1378 case VENUS_DEC_STATE_DECODING:
1379 case VENUS_DEC_STATE_DRAIN:
1380 inst->codec_state = VENUS_DEC_STATE_DRC;
1381 break;
1382 default:
1383 break;
1384 }
1385
1386 /*
1387 * The assumption is that the firmware have to return the last buffer
1388 * before this event is received in the v4l2 driver. Also the firmware
1389 * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1390 */
1391
1392 if (inst->codec_state == VENUS_DEC_STATE_DRC) {
1393 int ret;
1394
1395 inst->next_buf_last = true;
1396
1397 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1398 if (ret)
1399 dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1400 }
1401
1402 inst->next_buf_last = true;
1403 inst->reconfig = true;
1404 v4l2_event_queue_fh(&inst->fh, &ev);
1405 wake_up(&inst->reconf_wait);
1406
1407 mutex_unlock(&inst->lock);
1408 }
1409
vdec_event_notify(struct venus_inst *inst, u32 event, struct hfi_event_data *data)1410 static void vdec_event_notify(struct venus_inst *inst, u32 event,
1411 struct hfi_event_data *data)
1412 {
1413 struct venus_core *core = inst->core;
1414 struct device *dev = core->dev_dec;
1415
1416 vdec_pm_touch(inst);
1417
1418 switch (event) {
1419 case EVT_SESSION_ERROR:
1420 inst->session_error = true;
1421 dev_err(dev, "dec: event session error %x\n", inst->error);
1422 break;
1423 case EVT_SYS_EVENT_CHANGE:
1424 switch (data->event_type) {
1425 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1426 vdec_event_change(inst, data, true);
1427 break;
1428 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1429 vdec_event_change(inst, data, false);
1430 break;
1431 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1432 venus_helper_release_buf_ref(inst, data->tag);
1433 break;
1434 default:
1435 break;
1436 }
1437 break;
1438 default:
1439 break;
1440 }
1441 }
1442
vdec_flush_done(struct venus_inst *inst)1443 static void vdec_flush_done(struct venus_inst *inst)
1444 {
1445 dev_dbg(inst->core->dev_dec, VDBGH "flush done\n");
1446 }
1447
1448 static const struct hfi_inst_ops vdec_hfi_ops = {
1449 .buf_done = vdec_buf_done,
1450 .event_notify = vdec_event_notify,
1451 .flush_done = vdec_flush_done,
1452 };
1453
vdec_inst_init(struct venus_inst *inst)1454 static void vdec_inst_init(struct venus_inst *inst)
1455 {
1456 inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1457 inst->fmt_out = &vdec_formats[6];
1458 inst->fmt_cap = &vdec_formats[0];
1459 inst->width = frame_width_min(inst);
1460 inst->height = ALIGN(frame_height_min(inst), 32);
1461 inst->out_width = frame_width_min(inst);
1462 inst->out_height = frame_height_min(inst);
1463 inst->fps = 30;
1464 inst->timeperframe.numerator = 1;
1465 inst->timeperframe.denominator = 30;
1466 inst->opb_buftype = HFI_BUFFER_OUTPUT;
1467 }
1468
vdec_m2m_device_run(void *priv)1469 static void vdec_m2m_device_run(void *priv)
1470 {
1471 }
1472
1473 static const struct v4l2_m2m_ops vdec_m2m_ops = {
1474 .device_run = vdec_m2m_device_run,
1475 .job_abort = venus_helper_m2m_job_abort,
1476 };
1477
m2m_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)1478 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1479 struct vb2_queue *dst_vq)
1480 {
1481 struct venus_inst *inst = priv;
1482 int ret;
1483
1484 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1485 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1486 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1487 src_vq->ops = &vdec_vb2_ops;
1488 src_vq->mem_ops = &vb2_dma_sg_memops;
1489 src_vq->drv_priv = inst;
1490 src_vq->buf_struct_size = sizeof(struct venus_buffer);
1491 src_vq->allow_zero_bytesused = 1;
1492 src_vq->min_buffers_needed = 0;
1493 src_vq->dev = inst->core->dev;
1494 ret = vb2_queue_init(src_vq);
1495 if (ret)
1496 return ret;
1497
1498 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1499 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1500 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1501 dst_vq->ops = &vdec_vb2_ops;
1502 dst_vq->mem_ops = &vb2_dma_sg_memops;
1503 dst_vq->drv_priv = inst;
1504 dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1505 dst_vq->allow_zero_bytesused = 1;
1506 dst_vq->min_buffers_needed = 0;
1507 dst_vq->dev = inst->core->dev;
1508 return vb2_queue_init(dst_vq);
1509 }
1510
vdec_open(struct file *file)1511 static int vdec_open(struct file *file)
1512 {
1513 struct venus_core *core = video_drvdata(file);
1514 struct venus_inst *inst;
1515 int ret;
1516
1517 inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1518 if (!inst)
1519 return -ENOMEM;
1520
1521 INIT_LIST_HEAD(&inst->dpbbufs);
1522 INIT_LIST_HEAD(&inst->registeredbufs);
1523 INIT_LIST_HEAD(&inst->internalbufs);
1524 INIT_LIST_HEAD(&inst->list);
1525 mutex_init(&inst->lock);
1526
1527 inst->core = core;
1528 inst->session_type = VIDC_SESSION_TYPE_DEC;
1529 inst->num_output_bufs = 1;
1530 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1531 inst->buf_count = 0;
1532 inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1533 inst->core_acquired = false;
1534 inst->bit_depth = VIDC_BITDEPTH_8;
1535 init_waitqueue_head(&inst->reconf_wait);
1536 venus_helper_init_instance(inst);
1537
1538 ret = vdec_ctrl_init(inst);
1539 if (ret)
1540 goto err_free;
1541
1542 ret = hfi_session_create(inst, &vdec_hfi_ops);
1543 if (ret)
1544 goto err_ctrl_deinit;
1545
1546 vdec_inst_init(inst);
1547
1548 /*
1549 * create m2m device for every instance, the m2m context scheduling
1550 * is made by firmware side so we do not need to care about.
1551 */
1552 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1553 if (IS_ERR(inst->m2m_dev)) {
1554 ret = PTR_ERR(inst->m2m_dev);
1555 goto err_session_destroy;
1556 }
1557
1558 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1559 if (IS_ERR(inst->m2m_ctx)) {
1560 ret = PTR_ERR(inst->m2m_ctx);
1561 goto err_m2m_release;
1562 }
1563
1564 v4l2_fh_init(&inst->fh, core->vdev_dec);
1565
1566 inst->fh.ctrl_handler = &inst->ctrl_handler;
1567 v4l2_fh_add(&inst->fh);
1568 inst->fh.m2m_ctx = inst->m2m_ctx;
1569 file->private_data = &inst->fh;
1570
1571 return 0;
1572
1573 err_m2m_release:
1574 v4l2_m2m_release(inst->m2m_dev);
1575 err_session_destroy:
1576 hfi_session_destroy(inst);
1577 err_ctrl_deinit:
1578 vdec_ctrl_deinit(inst);
1579 err_free:
1580 kfree(inst);
1581 return ret;
1582 }
1583
vdec_close(struct file *file)1584 static int vdec_close(struct file *file)
1585 {
1586 struct venus_inst *inst = to_inst(file);
1587
1588 vdec_pm_get(inst);
1589
1590 v4l2_m2m_ctx_release(inst->m2m_ctx);
1591 v4l2_m2m_release(inst->m2m_dev);
1592 vdec_ctrl_deinit(inst);
1593 hfi_session_destroy(inst);
1594 mutex_destroy(&inst->lock);
1595 v4l2_fh_del(&inst->fh);
1596 v4l2_fh_exit(&inst->fh);
1597
1598 vdec_pm_put(inst, false);
1599
1600 kfree(inst);
1601 return 0;
1602 }
1603
1604 static const struct v4l2_file_operations vdec_fops = {
1605 .owner = THIS_MODULE,
1606 .open = vdec_open,
1607 .release = vdec_close,
1608 .unlocked_ioctl = video_ioctl2,
1609 .poll = v4l2_m2m_fop_poll,
1610 .mmap = v4l2_m2m_fop_mmap,
1611 };
1612
vdec_probe(struct platform_device *pdev)1613 static int vdec_probe(struct platform_device *pdev)
1614 {
1615 struct device *dev = &pdev->dev;
1616 struct video_device *vdev;
1617 struct venus_core *core;
1618 int ret;
1619
1620 if (!dev->parent)
1621 return -EPROBE_DEFER;
1622
1623 core = dev_get_drvdata(dev->parent);
1624 if (!core)
1625 return -EPROBE_DEFER;
1626
1627 platform_set_drvdata(pdev, core);
1628
1629 if (core->pm_ops->vdec_get) {
1630 ret = core->pm_ops->vdec_get(dev);
1631 if (ret)
1632 return ret;
1633 }
1634
1635 vdev = video_device_alloc();
1636 if (!vdev)
1637 return -ENOMEM;
1638
1639 strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1640 vdev->release = video_device_release;
1641 vdev->fops = &vdec_fops;
1642 vdev->ioctl_ops = &vdec_ioctl_ops;
1643 vdev->vfl_dir = VFL_DIR_M2M;
1644 vdev->v4l2_dev = &core->v4l2_dev;
1645 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1646
1647 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1648 if (ret)
1649 goto err_vdev_release;
1650
1651 core->vdev_dec = vdev;
1652 core->dev_dec = dev;
1653
1654 video_set_drvdata(vdev, core);
1655 pm_runtime_set_autosuspend_delay(dev, 2000);
1656 pm_runtime_use_autosuspend(dev);
1657 pm_runtime_enable(dev);
1658
1659 return 0;
1660
1661 err_vdev_release:
1662 video_device_release(vdev);
1663 return ret;
1664 }
1665
vdec_remove(struct platform_device *pdev)1666 static int vdec_remove(struct platform_device *pdev)
1667 {
1668 struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1669
1670 video_unregister_device(core->vdev_dec);
1671 pm_runtime_disable(core->dev_dec);
1672
1673 if (core->pm_ops->vdec_put)
1674 core->pm_ops->vdec_put(core->dev_dec);
1675
1676 return 0;
1677 }
1678
vdec_runtime_suspend(struct device *dev)1679 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1680 {
1681 struct venus_core *core = dev_get_drvdata(dev);
1682 const struct venus_pm_ops *pm_ops = core->pm_ops;
1683 int ret = 0;
1684
1685 if (pm_ops->vdec_power)
1686 ret = pm_ops->vdec_power(dev, POWER_OFF);
1687
1688 return ret;
1689 }
1690
vdec_runtime_resume(struct device *dev)1691 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1692 {
1693 struct venus_core *core = dev_get_drvdata(dev);
1694 const struct venus_pm_ops *pm_ops = core->pm_ops;
1695 int ret = 0;
1696
1697 if (pm_ops->vdec_power)
1698 ret = pm_ops->vdec_power(dev, POWER_ON);
1699
1700 return ret;
1701 }
1702
1703 static const struct dev_pm_ops vdec_pm_ops = {
1704 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1705 pm_runtime_force_resume)
1706 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1707 };
1708
1709 static const struct of_device_id vdec_dt_match[] = {
1710 { .compatible = "venus-decoder" },
1711 { }
1712 };
1713 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1714
1715 static struct platform_driver qcom_venus_dec_driver = {
1716 .probe = vdec_probe,
1717 .remove = vdec_remove,
1718 .driver = {
1719 .name = "qcom-venus-decoder",
1720 .of_match_table = vdec_dt_match,
1721 .pm = &vdec_pm_ops,
1722 },
1723 };
1724 module_platform_driver(qcom_venus_dec_driver);
1725
1726 MODULE_ALIAS("platform:qcom-venus-decoder");
1727 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1728 MODULE_LICENSE("GPL v2");
1729