1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
4 * Copyright (C) 2017 Linaro Ltd.
5 */
6 #include <linux/clk.h>
7 #include <linux/module.h>
8 #include <linux/mod_devicetable.h>
9 #include <linux/platform_device.h>
10 #include <linux/pm_runtime.h>
11 #include <linux/slab.h>
12 #include <media/v4l2-ioctl.h>
13 #include <media/v4l2-event.h>
14 #include <media/v4l2-ctrls.h>
15 #include <media/v4l2-mem2mem.h>
16 #include <media/videobuf2-dma-contig.h>
17
18 #include "hfi_venus_io.h"
19 #include "hfi_parser.h"
20 #include "core.h"
21 #include "helpers.h"
22 #include "vdec.h"
23 #include "pm_helpers.h"
24
25 /*
26 * Three resons to keep MPLANE formats (despite that the number of planes
27 * currently is one):
28 * - the MPLANE formats allow only one plane to be used
29 * - the downstream driver use MPLANE formats too
30 * - future firmware versions could add support for >1 planes
31 */
32 static const struct venus_format vdec_formats[] = {
33 [VENUS_FMT_NV12] = {
34 .pixfmt = V4L2_PIX_FMT_NV12,
35 .num_planes = 1,
36 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
37 },
38 [VENUS_FMT_QC08C] = {
39 .pixfmt = V4L2_PIX_FMT_QC08C,
40 .num_planes = 1,
41 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
42 },
43 [VENUS_FMT_QC10C] = {
44 .pixfmt = V4L2_PIX_FMT_QC10C,
45 .num_planes = 1,
46 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
47 },
48 [VENUS_FMT_P010] = {
49 .pixfmt = V4L2_PIX_FMT_P010,
50 .num_planes = 1,
51 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
52 },
53 [VENUS_FMT_H264] = {
54 .pixfmt = V4L2_PIX_FMT_H264,
55 .num_planes = 1,
56 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
57 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
58 },
59 [VENUS_FMT_VP8] = {
60 .pixfmt = V4L2_PIX_FMT_VP8,
61 .num_planes = 1,
62 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
63 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
64 },
65 [VENUS_FMT_VP9] = {
66 .pixfmt = V4L2_PIX_FMT_VP9,
67 .num_planes = 1,
68 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
69 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
70 },
71 [VENUS_FMT_HEVC] = {
72 .pixfmt = V4L2_PIX_FMT_HEVC,
73 .num_planes = 1,
74 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
75 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
76 },
77 [VENUS_FMT_VC1_ANNEX_G] = {
78 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
79 .num_planes = 1,
80 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
81 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
82 },
83 [VENUS_FMT_VC1_ANNEX_L] = {
84 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
85 .num_planes = 1,
86 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
87 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
88 },
89 [VENUS_FMT_MPEG4] = {
90 .pixfmt = V4L2_PIX_FMT_MPEG4,
91 .num_planes = 1,
92 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
93 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
94 },
95 [VENUS_FMT_MPEG2] = {
96 .pixfmt = V4L2_PIX_FMT_MPEG2,
97 .num_planes = 1,
98 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
99 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
100 },
101 [VENUS_FMT_H263] = {
102 .pixfmt = V4L2_PIX_FMT_H263,
103 .num_planes = 1,
104 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
105 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
106 },
107 [VENUS_FMT_XVID] = {
108 .pixfmt = V4L2_PIX_FMT_XVID,
109 .num_planes = 1,
110 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
111 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
112 },
113
114 };
115
116 static const struct venus_format *
find_format(struct venus_inst * inst,u32 pixfmt,u32 type)117 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
118 {
119 const struct venus_format *fmt = vdec_formats;
120 unsigned int size = ARRAY_SIZE(vdec_formats);
121 unsigned int i;
122
123 for (i = 0; i < size; i++) {
124 if (fmt[i].pixfmt == pixfmt)
125 break;
126 }
127
128 if (i == size || fmt[i].type != type)
129 return NULL;
130
131 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
132 !venus_helper_check_codec(inst, fmt[i].pixfmt))
133 return NULL;
134
135 if (V4L2_TYPE_IS_CAPTURE(type) &&
136 !venus_helper_check_format(inst, fmt[i].pixfmt))
137 return NULL;
138
139 if (V4L2_TYPE_IS_CAPTURE(type) && fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
140 !(inst->bit_depth == VIDC_BITDEPTH_10))
141 return NULL;
142
143 return &fmt[i];
144 }
145
146 static const struct venus_format *
find_format_by_index(struct venus_inst * inst,unsigned int index,u32 type)147 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
148 {
149 const struct venus_format *fmt = vdec_formats;
150 unsigned int size = ARRAY_SIZE(vdec_formats);
151 unsigned int i, k = 0;
152
153 if (index > size)
154 return NULL;
155
156 for (i = 0; i < size; i++) {
157 bool valid;
158
159 if (fmt[i].type != type)
160 continue;
161
162 if (V4L2_TYPE_IS_OUTPUT(type)) {
163 valid = venus_helper_check_codec(inst, fmt[i].pixfmt);
164 } else if (V4L2_TYPE_IS_CAPTURE(type)) {
165 valid = venus_helper_check_format(inst, fmt[i].pixfmt);
166
167 if (fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
168 !(inst->bit_depth == VIDC_BITDEPTH_10))
169 valid = false;
170 }
171
172 if (k == index && valid)
173 break;
174 if (valid)
175 k++;
176 }
177
178 if (i == size)
179 return NULL;
180
181 return &fmt[i];
182 }
183
184 static const struct venus_format *
vdec_try_fmt_common(struct venus_inst * inst,struct v4l2_format * f)185 vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
186 {
187 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
188 struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
189 const struct venus_format *fmt;
190 u32 szimage;
191
192 memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
193 memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
194
195 fmt = find_format(inst, pixmp->pixelformat, f->type);
196 if (!fmt) {
197 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
198 pixmp->pixelformat = V4L2_PIX_FMT_NV12;
199 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
200 pixmp->pixelformat = V4L2_PIX_FMT_H264;
201 else
202 return NULL;
203 fmt = find_format(inst, pixmp->pixelformat, f->type);
204 if (!fmt)
205 return NULL;
206 }
207
208 pixmp->width = clamp(pixmp->width, frame_width_min(inst),
209 frame_width_max(inst));
210 pixmp->height = clamp(pixmp->height, frame_height_min(inst),
211 frame_height_max(inst));
212
213 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
214 pixmp->height = ALIGN(pixmp->height, 32);
215
216 if (pixmp->field == V4L2_FIELD_ANY)
217 pixmp->field = V4L2_FIELD_NONE;
218 pixmp->num_planes = fmt->num_planes;
219 pixmp->flags = 0;
220
221 szimage = venus_helper_get_framesz(pixmp->pixelformat, pixmp->width,
222 pixmp->height);
223
224 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
225 unsigned int stride = pixmp->width;
226
227 if (pixmp->pixelformat == V4L2_PIX_FMT_P010)
228 stride *= 2;
229
230 pfmt[0].sizeimage = szimage;
231 pfmt[0].bytesperline = ALIGN(stride, 128);
232 } else {
233 pfmt[0].sizeimage = clamp_t(u32, pfmt[0].sizeimage, 0, SZ_8M);
234 pfmt[0].sizeimage = max(pfmt[0].sizeimage, szimage);
235 pfmt[0].bytesperline = 0;
236 }
237
238 return fmt;
239 }
240
vdec_try_fmt(struct file * file,void * fh,struct v4l2_format * f)241 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
242 {
243 struct venus_inst *inst = to_inst(file);
244
245 vdec_try_fmt_common(inst, f);
246
247 return 0;
248 }
249
vdec_check_src_change(struct venus_inst * inst)250 static int vdec_check_src_change(struct venus_inst *inst)
251 {
252 int ret;
253
254 if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE &&
255 inst->codec_state == VENUS_DEC_STATE_INIT &&
256 !inst->reconfig)
257 return -EINVAL;
258
259 if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE)
260 return 0;
261
262 /*
263 * The code snippet below is a workaround for backward compatibility
264 * with applications which doesn't support V4L2 events. It will be
265 * dropped in future once those applications are fixed.
266 */
267
268 if (inst->codec_state != VENUS_DEC_STATE_INIT)
269 goto done;
270
271 ret = wait_event_timeout(inst->reconf_wait, inst->reconfig,
272 msecs_to_jiffies(100));
273 if (!ret)
274 return -EINVAL;
275
276 if (!(inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) ||
277 !inst->reconfig)
278 dev_dbg(inst->core->dev, VDBGH "wrong state\n");
279
280 done:
281 return 0;
282 }
283
vdec_g_fmt(struct file * file,void * fh,struct v4l2_format * f)284 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
285 {
286 struct venus_inst *inst = to_inst(file);
287 const struct venus_format *fmt = NULL;
288 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
289 int ret;
290
291 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
292 fmt = inst->fmt_cap;
293 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
294 fmt = inst->fmt_out;
295
296 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
297 ret = vdec_check_src_change(inst);
298 if (ret)
299 return ret;
300 }
301
302 pixmp->pixelformat = fmt->pixfmt;
303
304 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
305 pixmp->width = inst->width;
306 pixmp->height = inst->height;
307 pixmp->colorspace = inst->colorspace;
308 pixmp->ycbcr_enc = inst->ycbcr_enc;
309 pixmp->quantization = inst->quantization;
310 pixmp->xfer_func = inst->xfer_func;
311 } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
312 pixmp->width = inst->out_width;
313 pixmp->height = inst->out_height;
314 }
315
316 vdec_try_fmt_common(inst, f);
317
318 return 0;
319 }
320
vdec_s_fmt(struct file * file,void * fh,struct v4l2_format * f)321 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
322 {
323 struct venus_inst *inst = to_inst(file);
324 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
325 struct v4l2_pix_format_mplane orig_pixmp;
326 const struct venus_format *fmt;
327 struct v4l2_format format;
328 u32 pixfmt_out = 0, pixfmt_cap = 0;
329 struct vb2_queue *q;
330
331 q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
332 if (!q)
333 return -EINVAL;
334
335 if (vb2_is_busy(q))
336 return -EBUSY;
337
338 orig_pixmp = *pixmp;
339
340 fmt = vdec_try_fmt_common(inst, f);
341
342 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
343 pixfmt_out = pixmp->pixelformat;
344 pixfmt_cap = inst->fmt_cap->pixfmt;
345 } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
346 pixfmt_cap = pixmp->pixelformat;
347 pixfmt_out = inst->fmt_out->pixfmt;
348 }
349
350 memset(&format, 0, sizeof(format));
351
352 format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
353 format.fmt.pix_mp.pixelformat = pixfmt_out;
354 format.fmt.pix_mp.width = orig_pixmp.width;
355 format.fmt.pix_mp.height = orig_pixmp.height;
356 vdec_try_fmt_common(inst, &format);
357
358 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
359 inst->out_width = format.fmt.pix_mp.width;
360 inst->out_height = format.fmt.pix_mp.height;
361 inst->colorspace = pixmp->colorspace;
362 inst->ycbcr_enc = pixmp->ycbcr_enc;
363 inst->quantization = pixmp->quantization;
364 inst->xfer_func = pixmp->xfer_func;
365 inst->input_buf_size = pixmp->plane_fmt[0].sizeimage;
366 }
367
368 memset(&format, 0, sizeof(format));
369
370 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
371 format.fmt.pix_mp.pixelformat = pixfmt_cap;
372 format.fmt.pix_mp.width = orig_pixmp.width;
373 format.fmt.pix_mp.height = orig_pixmp.height;
374 vdec_try_fmt_common(inst, &format);
375
376 inst->width = format.fmt.pix_mp.width;
377 inst->height = format.fmt.pix_mp.height;
378 inst->crop.top = 0;
379 inst->crop.left = 0;
380 inst->crop.width = inst->width;
381 inst->crop.height = inst->height;
382
383 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
384 inst->fmt_out = fmt;
385 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
386 inst->fmt_cap = fmt;
387 inst->output2_buf_size =
388 venus_helper_get_framesz(pixfmt_cap, orig_pixmp.width, orig_pixmp.height);
389 }
390
391 return 0;
392 }
393
394 static int
vdec_g_selection(struct file * file,void * fh,struct v4l2_selection * s)395 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
396 {
397 struct venus_inst *inst = to_inst(file);
398
399 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
400 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
401 return -EINVAL;
402
403 s->r.top = 0;
404 s->r.left = 0;
405
406 switch (s->target) {
407 case V4L2_SEL_TGT_CROP_BOUNDS:
408 case V4L2_SEL_TGT_CROP_DEFAULT:
409 case V4L2_SEL_TGT_CROP:
410 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
411 return -EINVAL;
412 s->r.width = inst->out_width;
413 s->r.height = inst->out_height;
414 break;
415 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
416 case V4L2_SEL_TGT_COMPOSE_PADDED:
417 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
418 return -EINVAL;
419 s->r.width = inst->width;
420 s->r.height = inst->height;
421 break;
422 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
423 case V4L2_SEL_TGT_COMPOSE:
424 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
425 return -EINVAL;
426 s->r = inst->crop;
427 break;
428 default:
429 return -EINVAL;
430 }
431
432 return 0;
433 }
434
435 static int
vdec_querycap(struct file * file,void * fh,struct v4l2_capability * cap)436 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
437 {
438 strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
439 strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
440 strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
441
442 return 0;
443 }
444
vdec_enum_fmt(struct file * file,void * fh,struct v4l2_fmtdesc * f)445 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
446 {
447 struct venus_inst *inst = to_inst(file);
448 const struct venus_format *fmt;
449
450 memset(f->reserved, 0, sizeof(f->reserved));
451
452 fmt = find_format_by_index(inst, f->index, f->type);
453 if (!fmt)
454 return -EINVAL;
455
456 f->pixelformat = fmt->pixfmt;
457 f->flags = fmt->flags;
458
459 return 0;
460 }
461
vdec_s_parm(struct file * file,void * fh,struct v4l2_streamparm * a)462 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
463 {
464 struct venus_inst *inst = to_inst(file);
465 struct v4l2_captureparm *cap = &a->parm.capture;
466 struct v4l2_fract *timeperframe = &cap->timeperframe;
467 u64 us_per_frame, fps;
468
469 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
470 a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
471 return -EINVAL;
472
473 memset(cap->reserved, 0, sizeof(cap->reserved));
474 if (!timeperframe->denominator)
475 timeperframe->denominator = inst->timeperframe.denominator;
476 if (!timeperframe->numerator)
477 timeperframe->numerator = inst->timeperframe.numerator;
478 cap->readbuffers = 0;
479 cap->extendedmode = 0;
480 cap->capability = V4L2_CAP_TIMEPERFRAME;
481 us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
482 do_div(us_per_frame, timeperframe->denominator);
483
484 if (!us_per_frame)
485 return -EINVAL;
486
487 fps = (u64)USEC_PER_SEC;
488 do_div(fps, us_per_frame);
489
490 inst->fps = fps;
491 inst->timeperframe = *timeperframe;
492
493 return 0;
494 }
495
vdec_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)496 static int vdec_enum_framesizes(struct file *file, void *fh,
497 struct v4l2_frmsizeenum *fsize)
498 {
499 struct venus_inst *inst = to_inst(file);
500 const struct venus_format *fmt;
501
502 fmt = find_format(inst, fsize->pixel_format,
503 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
504 if (!fmt) {
505 fmt = find_format(inst, fsize->pixel_format,
506 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
507 if (!fmt)
508 return -EINVAL;
509 }
510
511 if (fsize->index)
512 return -EINVAL;
513
514 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
515
516 fsize->stepwise.min_width = frame_width_min(inst);
517 fsize->stepwise.max_width = frame_width_max(inst);
518 fsize->stepwise.step_width = frame_width_step(inst);
519 fsize->stepwise.min_height = frame_height_min(inst);
520 fsize->stepwise.max_height = frame_height_max(inst);
521 fsize->stepwise.step_height = frame_height_step(inst);
522
523 return 0;
524 }
525
vdec_subscribe_event(struct v4l2_fh * fh,const struct v4l2_event_subscription * sub)526 static int vdec_subscribe_event(struct v4l2_fh *fh,
527 const struct v4l2_event_subscription *sub)
528 {
529 struct venus_inst *inst = container_of(fh, struct venus_inst, fh);
530 int ret;
531
532 switch (sub->type) {
533 case V4L2_EVENT_EOS:
534 return v4l2_event_subscribe(fh, sub, 2, NULL);
535 case V4L2_EVENT_SOURCE_CHANGE:
536 ret = v4l2_src_change_event_subscribe(fh, sub);
537 if (ret)
538 return ret;
539 inst->subscriptions |= V4L2_EVENT_SOURCE_CHANGE;
540 return 0;
541 case V4L2_EVENT_CTRL:
542 return v4l2_ctrl_subscribe_event(fh, sub);
543 default:
544 return -EINVAL;
545 }
546 }
547
548 static int
vdec_decoder_cmd(struct file * file,void * fh,struct v4l2_decoder_cmd * cmd)549 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
550 {
551 struct venus_inst *inst = to_inst(file);
552 struct vb2_queue *dst_vq;
553 struct hfi_frame_data fdata = {0};
554 int ret;
555
556 ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
557 if (ret)
558 return ret;
559
560 mutex_lock(&inst->lock);
561
562 if (cmd->cmd == V4L2_DEC_CMD_STOP) {
563 /*
564 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on
565 * decoder input to signal EOS.
566 */
567 if (!(inst->streamon_out && inst->streamon_cap))
568 goto unlock;
569
570 fdata.buffer_type = HFI_BUFFER_INPUT;
571 fdata.flags |= HFI_BUFFERFLAG_EOS;
572 if (IS_V6(inst->core) && is_fw_rev_or_older(inst->core, 1, 0, 87))
573 fdata.device_addr = 0;
574 else
575 fdata.device_addr = 0xdeadb000;
576
577 ret = hfi_session_process_buf(inst, &fdata);
578
579 if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
580 inst->codec_state = VENUS_DEC_STATE_DRAIN;
581 inst->drain_active = true;
582 }
583 } else if (cmd->cmd == V4L2_DEC_CMD_START &&
584 inst->codec_state == VENUS_DEC_STATE_STOPPED) {
585 dst_vq = v4l2_m2m_get_vq(inst->fh.m2m_ctx,
586 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
587 vb2_clear_last_buffer_dequeued(dst_vq);
588
589 inst->codec_state = VENUS_DEC_STATE_DECODING;
590 }
591
592 unlock:
593 mutex_unlock(&inst->lock);
594 return ret;
595 }
596
597 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
598 .vidioc_querycap = vdec_querycap,
599 .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
600 .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
601 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
602 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
603 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
604 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
605 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
606 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
607 .vidioc_g_selection = vdec_g_selection,
608 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
609 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
610 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
611 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
612 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
613 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
614 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
615 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
616 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
617 .vidioc_s_parm = vdec_s_parm,
618 .vidioc_enum_framesizes = vdec_enum_framesizes,
619 .vidioc_subscribe_event = vdec_subscribe_event,
620 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
621 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
622 .vidioc_decoder_cmd = vdec_decoder_cmd,
623 };
624
vdec_pm_get(struct venus_inst * inst)625 static int vdec_pm_get(struct venus_inst *inst)
626 {
627 struct venus_core *core = inst->core;
628 struct device *dev = core->dev_dec;
629 int ret;
630
631 mutex_lock(&core->pm_lock);
632 ret = pm_runtime_resume_and_get(dev);
633 mutex_unlock(&core->pm_lock);
634
635 return ret;
636 }
637
vdec_pm_put(struct venus_inst * inst,bool autosuspend)638 static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
639 {
640 struct venus_core *core = inst->core;
641 struct device *dev = core->dev_dec;
642 int ret;
643
644 mutex_lock(&core->pm_lock);
645
646 if (autosuspend)
647 ret = pm_runtime_put_autosuspend(dev);
648 else
649 ret = pm_runtime_put_sync(dev);
650
651 mutex_unlock(&core->pm_lock);
652
653 return ret < 0 ? ret : 0;
654 }
655
vdec_pm_get_put(struct venus_inst * inst)656 static int vdec_pm_get_put(struct venus_inst *inst)
657 {
658 struct venus_core *core = inst->core;
659 struct device *dev = core->dev_dec;
660 int ret = 0;
661
662 mutex_lock(&core->pm_lock);
663
664 if (pm_runtime_suspended(dev)) {
665 ret = pm_runtime_resume_and_get(dev);
666 if (ret < 0)
667 goto error;
668
669 ret = pm_runtime_put_autosuspend(dev);
670 }
671
672 error:
673 mutex_unlock(&core->pm_lock);
674
675 return ret < 0 ? ret : 0;
676 }
677
vdec_pm_touch(struct venus_inst * inst)678 static void vdec_pm_touch(struct venus_inst *inst)
679 {
680 pm_runtime_mark_last_busy(inst->core->dev_dec);
681 }
682
vdec_set_properties(struct venus_inst * inst)683 static int vdec_set_properties(struct venus_inst *inst)
684 {
685 struct vdec_controls *ctr = &inst->controls.dec;
686 struct hfi_enable en = { .enable = 1 };
687 u32 ptype, decode_order, conceal;
688 int ret;
689
690 if (ctr->post_loop_deb_mode) {
691 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
692 ret = hfi_session_set_property(inst, ptype, &en);
693 if (ret)
694 return ret;
695 }
696
697 if (ctr->display_delay_enable && ctr->display_delay == 0) {
698 ptype = HFI_PROPERTY_PARAM_VDEC_OUTPUT_ORDER;
699 decode_order = HFI_OUTPUT_ORDER_DECODE;
700 ret = hfi_session_set_property(inst, ptype, &decode_order);
701 if (ret)
702 return ret;
703 }
704
705 /* Enabling sufficient sequence change support for VP9 */
706 if (is_fw_rev_or_newer(inst->core, 5, 4, 51)) {
707 ptype = HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT;
708 ret = hfi_session_set_property(inst, ptype, &en);
709 if (ret)
710 return ret;
711 }
712
713 ptype = HFI_PROPERTY_PARAM_VDEC_CONCEAL_COLOR;
714 conceal = ctr->conceal_color & 0xffff;
715 conceal |= ((ctr->conceal_color >> 16) & 0xffff) << 10;
716 conceal |= ((ctr->conceal_color >> 32) & 0xffff) << 20;
717
718 ret = hfi_session_set_property(inst, ptype, &conceal);
719 if (ret)
720 return ret;
721
722 return 0;
723 }
724
vdec_set_work_route(struct venus_inst * inst)725 static int vdec_set_work_route(struct venus_inst *inst)
726 {
727 u32 ptype = HFI_PROPERTY_PARAM_WORK_ROUTE;
728 struct hfi_video_work_route wr;
729
730 if (!(IS_IRIS2(inst->core) || IS_IRIS2_1(inst->core)))
731 return 0;
732
733 wr.video_work_route = inst->core->res->num_vpp_pipes;
734
735 return hfi_session_set_property(inst, ptype, &wr);
736 }
737
738 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
739 #define is_10bit_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_10_BIT_BASE & \
740 HFI_COLOR_FORMAT_UBWC_BASE))
741
742
vdec_output_conf(struct venus_inst * inst)743 static int vdec_output_conf(struct venus_inst *inst)
744 {
745 struct venus_core *core = inst->core;
746 struct hfi_enable en = { .enable = 1 };
747 struct hfi_buffer_requirements bufreq;
748 u32 width = inst->width;
749 u32 height = inst->height;
750 u32 out_fmt, out2_fmt;
751 bool ubwc = false;
752 u32 ptype;
753 int ret;
754
755 ret = venus_helper_set_work_mode(inst);
756 if (ret)
757 return ret;
758
759 if (core->res->hfi_version == HFI_VERSION_1XX) {
760 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
761 ret = hfi_session_set_property(inst, ptype, &en);
762 if (ret)
763 return ret;
764 }
765
766 /* Force searching UBWC formats for bigger then HD resolutions */
767 if (width > 1920 && height > ALIGN(1080, 32))
768 ubwc = true;
769
770 /* For Venus v4/v6 UBWC format is mandatory */
771 if (IS_V4(core) || IS_V6(core))
772 ubwc = true;
773
774 ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
775 &out2_fmt, ubwc);
776 if (ret)
777 return ret;
778
779 inst->output_buf_size =
780 venus_helper_get_framesz_raw(out_fmt, width, height);
781 inst->output2_buf_size =
782 venus_helper_get_framesz_raw(out2_fmt, width, height);
783
784 if (is_ubwc_fmt(out_fmt)) {
785 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
786 inst->opb_fmt = out2_fmt;
787 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
788 inst->dpb_fmt = out_fmt;
789 } else if (is_ubwc_fmt(out2_fmt) || is_10bit_ubwc_fmt(out_fmt)) {
790 inst->opb_buftype = HFI_BUFFER_OUTPUT;
791 inst->opb_fmt = out_fmt;
792 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
793 inst->dpb_fmt = out2_fmt;
794 } else {
795 inst->opb_buftype = HFI_BUFFER_OUTPUT;
796 inst->opb_fmt = out_fmt;
797 inst->dpb_buftype = 0;
798 inst->dpb_fmt = 0;
799 }
800
801 ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
802 inst->opb_buftype);
803 if (ret)
804 return ret;
805
806 ret = venus_helper_set_format_constraints(inst);
807 if (ret)
808 return ret;
809
810 if (inst->dpb_fmt) {
811 ret = venus_helper_set_multistream(inst, false, true);
812 if (ret)
813 return ret;
814
815 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
816 inst->dpb_buftype);
817 if (ret)
818 return ret;
819
820 ret = venus_helper_set_output_resolution(inst, width, height,
821 HFI_BUFFER_OUTPUT2);
822 if (ret)
823 return ret;
824 }
825
826 if (IS_V3(core) || IS_V4(core) || IS_V6(core)) {
827 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
828 if (ret)
829 return ret;
830
831 if (bufreq.size > inst->output_buf_size)
832 return -EINVAL;
833
834 if (inst->dpb_fmt) {
835 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT2,
836 &bufreq);
837 if (ret)
838 return ret;
839
840 if (bufreq.size > inst->output2_buf_size)
841 return -EINVAL;
842 }
843
844 if (inst->output2_buf_size) {
845 ret = venus_helper_set_bufsize(inst,
846 inst->output2_buf_size,
847 HFI_BUFFER_OUTPUT2);
848 if (ret)
849 return ret;
850 }
851
852 if (inst->output_buf_size) {
853 ret = venus_helper_set_bufsize(inst,
854 inst->output_buf_size,
855 HFI_BUFFER_OUTPUT);
856 if (ret)
857 return ret;
858 }
859 }
860
861 ret = venus_helper_set_dyn_bufmode(inst);
862 if (ret)
863 return ret;
864
865 return 0;
866 }
867
vdec_session_init(struct venus_inst * inst)868 static int vdec_session_init(struct venus_inst *inst)
869 {
870 int ret;
871
872 ret = venus_helper_session_init(inst);
873 if (ret == -EALREADY)
874 return 0;
875 else if (ret)
876 return ret;
877
878 ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
879 frame_height_min(inst));
880 if (ret)
881 goto deinit;
882
883 return 0;
884 deinit:
885 hfi_session_deinit(inst);
886 return ret;
887 }
888
vdec_num_buffers(struct venus_inst * inst,unsigned int * in_num,unsigned int * out_num)889 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
890 unsigned int *out_num)
891 {
892 enum hfi_version ver = inst->core->res->hfi_version;
893 struct hfi_buffer_requirements bufreq;
894 int ret;
895
896 *in_num = *out_num = 0;
897
898 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
899 if (ret)
900 return ret;
901
902 *in_num = hfi_bufreq_get_count_min(&bufreq, ver);
903
904 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
905 if (ret)
906 return ret;
907
908 *out_num = hfi_bufreq_get_count_min(&bufreq, ver);
909
910 return 0;
911 }
912
vdec_queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])913 static int vdec_queue_setup(struct vb2_queue *q,
914 unsigned int *num_buffers, unsigned int *num_planes,
915 unsigned int sizes[], struct device *alloc_devs[])
916 {
917 struct venus_inst *inst = vb2_get_drv_priv(q);
918 struct venus_core *core = inst->core;
919 unsigned int in_num, out_num;
920 int ret = 0;
921
922 if (*num_planes) {
923 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
924
925 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
926 *num_planes != inst->fmt_out->num_planes)
927 return -EINVAL;
928
929 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
930 *num_planes != inst->fmt_cap->num_planes)
931 return -EINVAL;
932
933 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
934 sizes[0] < inst->input_buf_size)
935 return -EINVAL;
936
937 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
938 sizes[0] < output_buf_size)
939 return -EINVAL;
940
941 return 0;
942 }
943
944 if (test_bit(0, &core->sys_error)) {
945 if (inst->nonblock)
946 return -EAGAIN;
947
948 ret = wait_event_interruptible(core->sys_err_done,
949 !test_bit(0, &core->sys_error));
950 if (ret)
951 return ret;
952 }
953
954 ret = vdec_pm_get(inst);
955 if (ret)
956 return ret;
957
958 ret = vdec_session_init(inst);
959 if (ret)
960 goto put_power;
961
962 ret = vdec_num_buffers(inst, &in_num, &out_num);
963 if (ret)
964 goto put_power;
965
966 ret = vdec_pm_put(inst, false);
967 if (ret)
968 return ret;
969
970 switch (q->type) {
971 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
972 *num_planes = inst->fmt_out->num_planes;
973 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
974 inst->out_width,
975 inst->out_height);
976 sizes[0] = max(sizes[0], inst->input_buf_size);
977 inst->input_buf_size = sizes[0];
978 *num_buffers = max(*num_buffers, in_num);
979 inst->num_input_bufs = *num_buffers;
980 inst->num_output_bufs = out_num;
981 break;
982 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
983 *num_planes = inst->fmt_cap->num_planes;
984 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
985 inst->width,
986 inst->height);
987 inst->output_buf_size = sizes[0];
988 *num_buffers = max(*num_buffers, out_num);
989 inst->num_output_bufs = *num_buffers;
990
991 mutex_lock(&inst->lock);
992 if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
993 inst->codec_state = VENUS_DEC_STATE_STOPPED;
994 mutex_unlock(&inst->lock);
995 break;
996 default:
997 ret = -EINVAL;
998 break;
999 }
1000
1001 return ret;
1002
1003 put_power:
1004 vdec_pm_put(inst, false);
1005 return ret;
1006 }
1007
vdec_verify_conf(struct venus_inst * inst)1008 static int vdec_verify_conf(struct venus_inst *inst)
1009 {
1010 enum hfi_version ver = inst->core->res->hfi_version;
1011 struct hfi_buffer_requirements bufreq;
1012 int ret;
1013
1014 if (!inst->num_input_bufs || !inst->num_output_bufs)
1015 return -EINVAL;
1016
1017 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1018 if (ret)
1019 return ret;
1020
1021 if (inst->num_output_bufs < bufreq.count_actual ||
1022 inst->num_output_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1023 return -EINVAL;
1024
1025 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1026 if (ret)
1027 return ret;
1028
1029 if (inst->num_input_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1030 return -EINVAL;
1031
1032 return 0;
1033 }
1034
vdec_start_capture(struct venus_inst * inst)1035 static int vdec_start_capture(struct venus_inst *inst)
1036 {
1037 int ret;
1038
1039 if (!inst->streamon_out)
1040 return 0;
1041
1042 if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
1043 if (inst->reconfig)
1044 goto reconfigure;
1045
1046 venus_helper_queue_dpb_bufs(inst);
1047 venus_helper_process_initial_cap_bufs(inst);
1048 inst->streamon_cap = 1;
1049 return 0;
1050 }
1051
1052 if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
1053 return 0;
1054
1055 reconfigure:
1056 ret = vdec_output_conf(inst);
1057 if (ret)
1058 return ret;
1059
1060 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1061 VB2_MAX_FRAME, VB2_MAX_FRAME);
1062 if (ret)
1063 return ret;
1064
1065 ret = venus_helper_intbufs_realloc(inst);
1066 if (ret)
1067 goto err;
1068
1069 venus_pm_load_scale(inst);
1070
1071 inst->next_buf_last = false;
1072
1073 ret = venus_helper_alloc_dpb_bufs(inst);
1074 if (ret)
1075 goto err;
1076
1077 ret = hfi_session_continue(inst);
1078 if (ret)
1079 goto free_dpb_bufs;
1080
1081 ret = venus_helper_queue_dpb_bufs(inst);
1082 if (ret)
1083 goto free_dpb_bufs;
1084
1085 ret = venus_helper_process_initial_cap_bufs(inst);
1086 if (ret)
1087 goto free_dpb_bufs;
1088
1089 inst->codec_state = VENUS_DEC_STATE_DECODING;
1090
1091 if (inst->drain_active)
1092 inst->codec_state = VENUS_DEC_STATE_DRAIN;
1093
1094 inst->streamon_cap = 1;
1095 inst->sequence_cap = 0;
1096 inst->reconfig = false;
1097 inst->drain_active = false;
1098
1099 return 0;
1100
1101 free_dpb_bufs:
1102 venus_helper_free_dpb_bufs(inst);
1103 err:
1104 return ret;
1105 }
1106
vdec_start_output(struct venus_inst * inst)1107 static int vdec_start_output(struct venus_inst *inst)
1108 {
1109 int ret;
1110
1111 if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
1112 ret = venus_helper_process_initial_out_bufs(inst);
1113 if (inst->next_buf_last)
1114 inst->codec_state = VENUS_DEC_STATE_DRC;
1115 else
1116 inst->codec_state = VENUS_DEC_STATE_DECODING;
1117 goto done;
1118 }
1119
1120 if (inst->codec_state == VENUS_DEC_STATE_INIT ||
1121 inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
1122 ret = venus_helper_process_initial_out_bufs(inst);
1123 goto done;
1124 }
1125
1126 if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
1127 return -EINVAL;
1128
1129 venus_helper_init_instance(inst);
1130 inst->sequence_out = 0;
1131 inst->reconfig = false;
1132 inst->next_buf_last = false;
1133
1134 ret = vdec_set_properties(inst);
1135 if (ret)
1136 return ret;
1137
1138 ret = vdec_set_work_route(inst);
1139 if (ret)
1140 return ret;
1141
1142 ret = vdec_output_conf(inst);
1143 if (ret)
1144 return ret;
1145
1146 ret = vdec_verify_conf(inst);
1147 if (ret)
1148 return ret;
1149
1150 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1151 VB2_MAX_FRAME, VB2_MAX_FRAME);
1152 if (ret)
1153 return ret;
1154
1155 ret = venus_helper_vb2_start_streaming(inst);
1156 if (ret)
1157 return ret;
1158
1159 ret = venus_helper_process_initial_out_bufs(inst);
1160 if (ret)
1161 return ret;
1162
1163 inst->codec_state = VENUS_DEC_STATE_INIT;
1164
1165 done:
1166 inst->streamon_out = 1;
1167 return ret;
1168 }
1169
vdec_start_streaming(struct vb2_queue * q,unsigned int count)1170 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1171 {
1172 struct venus_inst *inst = vb2_get_drv_priv(q);
1173 int ret;
1174
1175 mutex_lock(&inst->lock);
1176
1177 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1178 ret = vdec_start_capture(inst);
1179 } else {
1180 ret = vdec_pm_get(inst);
1181 if (ret)
1182 goto error;
1183
1184 ret = venus_pm_acquire_core(inst);
1185 if (ret)
1186 goto put_power;
1187
1188 ret = vdec_pm_put(inst, true);
1189 if (ret)
1190 goto error;
1191
1192 ret = vdec_start_output(inst);
1193 }
1194
1195 if (ret)
1196 goto error;
1197
1198 mutex_unlock(&inst->lock);
1199 return 0;
1200
1201 put_power:
1202 vdec_pm_put(inst, false);
1203 error:
1204 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1205 mutex_unlock(&inst->lock);
1206 return ret;
1207 }
1208
vdec_cancel_dst_buffers(struct venus_inst * inst)1209 static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1210 {
1211 struct vb2_v4l2_buffer *buf;
1212
1213 while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1214 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1215 }
1216
vdec_stop_capture(struct venus_inst * inst)1217 static int vdec_stop_capture(struct venus_inst *inst)
1218 {
1219 int ret = 0;
1220
1221 switch (inst->codec_state) {
1222 case VENUS_DEC_STATE_DECODING:
1223 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1224 fallthrough;
1225 case VENUS_DEC_STATE_DRAIN:
1226 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1227 inst->drain_active = false;
1228 fallthrough;
1229 case VENUS_DEC_STATE_SEEK:
1230 vdec_cancel_dst_buffers(inst);
1231 break;
1232 case VENUS_DEC_STATE_DRC:
1233 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
1234 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1235 venus_helper_free_dpb_bufs(inst);
1236 break;
1237 default:
1238 break;
1239 }
1240
1241 return ret;
1242 }
1243
vdec_stop_output(struct venus_inst * inst)1244 static int vdec_stop_output(struct venus_inst *inst)
1245 {
1246 int ret = 0;
1247
1248 switch (inst->codec_state) {
1249 case VENUS_DEC_STATE_DECODING:
1250 case VENUS_DEC_STATE_DRAIN:
1251 case VENUS_DEC_STATE_STOPPED:
1252 case VENUS_DEC_STATE_DRC:
1253 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1254 inst->codec_state = VENUS_DEC_STATE_SEEK;
1255 break;
1256 case VENUS_DEC_STATE_INIT:
1257 case VENUS_DEC_STATE_CAPTURE_SETUP:
1258 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1259 break;
1260 default:
1261 break;
1262 }
1263
1264 return ret;
1265 }
1266
vdec_stop_streaming(struct vb2_queue * q)1267 static void vdec_stop_streaming(struct vb2_queue *q)
1268 {
1269 struct venus_inst *inst = vb2_get_drv_priv(q);
1270 int ret = -EINVAL;
1271
1272 vdec_pm_get_put(inst);
1273
1274 mutex_lock(&inst->lock);
1275
1276 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1277 ret = vdec_stop_capture(inst);
1278 else
1279 ret = vdec_stop_output(inst);
1280
1281 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1282
1283 inst->session_error = 0;
1284
1285 if (ret)
1286 goto unlock;
1287
1288 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1289 inst->streamon_out = 0;
1290 else
1291 inst->streamon_cap = 0;
1292
1293 unlock:
1294 mutex_unlock(&inst->lock);
1295 }
1296
vdec_session_release(struct venus_inst * inst)1297 static void vdec_session_release(struct venus_inst *inst)
1298 {
1299 struct venus_core *core = inst->core;
1300 int ret, abort = 0;
1301
1302 vdec_pm_get(inst);
1303
1304 mutex_lock(&inst->lock);
1305 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1306
1307 ret = hfi_session_stop(inst);
1308 abort = (ret && ret != -EINVAL) ? 1 : 0;
1309 ret = hfi_session_unload_res(inst);
1310 abort = (ret && ret != -EINVAL) ? 1 : 0;
1311 ret = venus_helper_unregister_bufs(inst);
1312 abort = (ret && ret != -EINVAL) ? 1 : 0;
1313 ret = venus_helper_intbufs_free(inst);
1314 abort = (ret && ret != -EINVAL) ? 1 : 0;
1315 ret = hfi_session_deinit(inst);
1316 abort = (ret && ret != -EINVAL) ? 1 : 0;
1317
1318 if (inst->session_error || test_bit(0, &core->sys_error))
1319 abort = 1;
1320
1321 if (abort)
1322 hfi_session_abort(inst);
1323
1324 venus_helper_free_dpb_bufs(inst);
1325 venus_pm_load_scale(inst);
1326 INIT_LIST_HEAD(&inst->registeredbufs);
1327 mutex_unlock(&inst->lock);
1328
1329 venus_pm_release_core(inst);
1330 vdec_pm_put(inst, false);
1331 }
1332
vdec_buf_init(struct vb2_buffer * vb)1333 static int vdec_buf_init(struct vb2_buffer *vb)
1334 {
1335 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1336
1337 inst->buf_count++;
1338
1339 return venus_helper_vb2_buf_init(vb);
1340 }
1341
vdec_buf_cleanup(struct vb2_buffer * vb)1342 static void vdec_buf_cleanup(struct vb2_buffer *vb)
1343 {
1344 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1345 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1346 struct venus_buffer *buf = to_venus_buffer(vbuf);
1347
1348 mutex_lock(&inst->lock);
1349 if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1350 if (!list_empty(&inst->registeredbufs))
1351 list_del_init(&buf->reg_list);
1352 mutex_unlock(&inst->lock);
1353
1354 inst->buf_count--;
1355 if (!inst->buf_count)
1356 vdec_session_release(inst);
1357 }
1358
vdec_vb2_buf_queue(struct vb2_buffer * vb)1359 static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1360 {
1361 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1362 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1363 static const struct v4l2_event eos = { .type = V4L2_EVENT_EOS };
1364
1365 vdec_pm_get_put(inst);
1366
1367 mutex_lock(&inst->lock);
1368
1369 if (inst->next_buf_last && V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
1370 inst->codec_state == VENUS_DEC_STATE_DRC) {
1371 vbuf->flags |= V4L2_BUF_FLAG_LAST;
1372 vbuf->sequence = inst->sequence_cap++;
1373 vbuf->field = V4L2_FIELD_NONE;
1374 vb2_set_plane_payload(vb, 0, 0);
1375 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1376 v4l2_event_queue_fh(&inst->fh, &eos);
1377 inst->next_buf_last = false;
1378 mutex_unlock(&inst->lock);
1379 return;
1380 }
1381
1382 venus_helper_vb2_buf_queue(vb);
1383 mutex_unlock(&inst->lock);
1384 }
1385
1386 static const struct vb2_ops vdec_vb2_ops = {
1387 .queue_setup = vdec_queue_setup,
1388 .buf_init = vdec_buf_init,
1389 .buf_cleanup = vdec_buf_cleanup,
1390 .buf_prepare = venus_helper_vb2_buf_prepare,
1391 .start_streaming = vdec_start_streaming,
1392 .stop_streaming = vdec_stop_streaming,
1393 .buf_queue = vdec_vb2_buf_queue,
1394 };
1395
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)1396 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1397 u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1398 u32 hfi_flags, u64 timestamp_us)
1399 {
1400 enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1401 struct vb2_v4l2_buffer *vbuf;
1402 struct vb2_buffer *vb;
1403 unsigned int type;
1404
1405 vdec_pm_touch(inst);
1406
1407 if (buf_type == HFI_BUFFER_INPUT)
1408 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1409 else
1410 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1411
1412 vbuf = venus_helper_find_buf(inst, type, tag);
1413 if (!vbuf) {
1414 venus_helper_change_dpb_owner(inst, vbuf, type, buf_type, tag);
1415 return;
1416 }
1417
1418 vbuf->flags = flags;
1419 vbuf->field = V4L2_FIELD_NONE;
1420 vb = &vbuf->vb2_buf;
1421
1422 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1423 vb2_set_plane_payload(vb, 0, bytesused);
1424 vb->planes[0].data_offset = data_offset;
1425 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1426 vbuf->sequence = inst->sequence_cap++;
1427
1428 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1429 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1430
1431 v4l2_event_queue_fh(&inst->fh, &ev);
1432
1433 if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
1434 inst->drain_active = false;
1435 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1436 }
1437 }
1438
1439 if (!bytesused)
1440 state = VB2_BUF_STATE_ERROR;
1441 } else {
1442 vbuf->sequence = inst->sequence_out++;
1443 }
1444
1445 venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1446
1447 if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1448 venus_helper_acquire_buf_ref(vbuf);
1449
1450 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1451 state = VB2_BUF_STATE_ERROR;
1452
1453 if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1454 state = VB2_BUF_STATE_ERROR;
1455 vb2_set_plane_payload(vb, 0, 0);
1456 vb->timestamp = 0;
1457 }
1458
1459 v4l2_m2m_buf_done(vbuf, state);
1460 }
1461
vdec_event_change(struct venus_inst * inst,struct hfi_event_data * ev_data,bool sufficient)1462 static void vdec_event_change(struct venus_inst *inst,
1463 struct hfi_event_data *ev_data, bool sufficient)
1464 {
1465 static const struct v4l2_event ev = {
1466 .type = V4L2_EVENT_SOURCE_CHANGE,
1467 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1468 struct device *dev = inst->core->dev_dec;
1469 struct v4l2_format format = {};
1470
1471 mutex_lock(&inst->lock);
1472
1473 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1474 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1475 format.fmt.pix_mp.width = ev_data->width;
1476 format.fmt.pix_mp.height = ev_data->height;
1477
1478 vdec_try_fmt_common(inst, &format);
1479
1480 inst->width = format.fmt.pix_mp.width;
1481 inst->height = format.fmt.pix_mp.height;
1482 /*
1483 * Some versions of the firmware do not report crop information for
1484 * all codecs. For these cases, set the crop to the coded resolution.
1485 */
1486 if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
1487 inst->crop.left = ev_data->input_crop.left;
1488 inst->crop.top = ev_data->input_crop.top;
1489 inst->crop.width = ev_data->input_crop.width;
1490 inst->crop.height = ev_data->input_crop.height;
1491 } else {
1492 inst->crop.left = 0;
1493 inst->crop.top = 0;
1494 inst->crop.width = ev_data->width;
1495 inst->crop.height = ev_data->height;
1496 }
1497
1498 inst->fw_min_cnt = ev_data->buf_count;
1499 /* overwriting this to 11 for vp9 due to fw bug */
1500 if (inst->hfi_codec == HFI_VIDEO_CODEC_VP9)
1501 inst->fw_min_cnt = 11;
1502
1503 inst->out_width = ev_data->width;
1504 inst->out_height = ev_data->height;
1505
1506 if (inst->bit_depth != ev_data->bit_depth) {
1507 inst->bit_depth = ev_data->bit_depth;
1508 if (inst->bit_depth == VIDC_BITDEPTH_10)
1509 inst->fmt_cap = &vdec_formats[VENUS_FMT_P010];
1510 else
1511 inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1512 }
1513
1514 if (inst->pic_struct != ev_data->pic_struct)
1515 inst->pic_struct = ev_data->pic_struct;
1516
1517 dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1518 sufficient ? "" : "not", ev_data->width, ev_data->height);
1519
1520 switch (inst->codec_state) {
1521 case VENUS_DEC_STATE_INIT:
1522 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1523 break;
1524 case VENUS_DEC_STATE_DECODING:
1525 case VENUS_DEC_STATE_DRAIN:
1526 inst->codec_state = VENUS_DEC_STATE_DRC;
1527 break;
1528 default:
1529 break;
1530 }
1531
1532 /*
1533 * The assumption is that the firmware have to return the last buffer
1534 * before this event is received in the v4l2 driver. Also the firmware
1535 * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1536 */
1537
1538 if (inst->codec_state == VENUS_DEC_STATE_DRC) {
1539 int ret;
1540
1541 inst->next_buf_last = true;
1542
1543 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1544 if (ret)
1545 dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1546 }
1547
1548 inst->next_buf_last = true;
1549 inst->reconfig = true;
1550 v4l2_event_queue_fh(&inst->fh, &ev);
1551 wake_up(&inst->reconf_wait);
1552
1553 mutex_unlock(&inst->lock);
1554 }
1555
vdec_event_notify(struct venus_inst * inst,u32 event,struct hfi_event_data * data)1556 static void vdec_event_notify(struct venus_inst *inst, u32 event,
1557 struct hfi_event_data *data)
1558 {
1559 struct venus_core *core = inst->core;
1560 struct device *dev = core->dev_dec;
1561
1562 vdec_pm_touch(inst);
1563
1564 switch (event) {
1565 case EVT_SESSION_ERROR:
1566 inst->session_error = true;
1567 venus_helper_vb2_queue_error(inst);
1568 dev_err(dev, "dec: event session error %x\n", inst->error);
1569 break;
1570 case EVT_SYS_EVENT_CHANGE:
1571 switch (data->event_type) {
1572 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1573 vdec_event_change(inst, data, true);
1574 break;
1575 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1576 vdec_event_change(inst, data, false);
1577 break;
1578 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1579 venus_helper_release_buf_ref(inst, data->tag);
1580 break;
1581 default:
1582 break;
1583 }
1584 break;
1585 default:
1586 break;
1587 }
1588 }
1589
vdec_flush_done(struct venus_inst * inst)1590 static void vdec_flush_done(struct venus_inst *inst)
1591 {
1592 dev_dbg(inst->core->dev_dec, VDBGH "flush done\n");
1593 }
1594
1595 static const struct hfi_inst_ops vdec_hfi_ops = {
1596 .buf_done = vdec_buf_done,
1597 .event_notify = vdec_event_notify,
1598 .flush_done = vdec_flush_done,
1599 };
1600
vdec_inst_init(struct venus_inst * inst)1601 static void vdec_inst_init(struct venus_inst *inst)
1602 {
1603 inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1604 inst->fmt_out = &vdec_formats[VENUS_FMT_H264];
1605 inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1606 inst->width = frame_width_min(inst);
1607 inst->height = ALIGN(frame_height_min(inst), 32);
1608 inst->crop.left = 0;
1609 inst->crop.top = 0;
1610 inst->crop.width = inst->width;
1611 inst->crop.height = inst->height;
1612 inst->fw_min_cnt = 8;
1613 inst->out_width = frame_width_min(inst);
1614 inst->out_height = frame_height_min(inst);
1615 inst->fps = 30;
1616 inst->timeperframe.numerator = 1;
1617 inst->timeperframe.denominator = 30;
1618 inst->opb_buftype = HFI_BUFFER_OUTPUT;
1619 }
1620
vdec_m2m_device_run(void * priv)1621 static void vdec_m2m_device_run(void *priv)
1622 {
1623 }
1624
1625 static const struct v4l2_m2m_ops vdec_m2m_ops = {
1626 .device_run = vdec_m2m_device_run,
1627 .job_abort = venus_helper_m2m_job_abort,
1628 };
1629
m2m_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)1630 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1631 struct vb2_queue *dst_vq)
1632 {
1633 struct venus_inst *inst = priv;
1634 int ret;
1635
1636 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1637 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1638 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1639 src_vq->ops = &vdec_vb2_ops;
1640 src_vq->mem_ops = &vb2_dma_contig_memops;
1641 src_vq->drv_priv = inst;
1642 src_vq->buf_struct_size = sizeof(struct venus_buffer);
1643 src_vq->allow_zero_bytesused = 1;
1644 src_vq->min_queued_buffers = 0;
1645 src_vq->dev = inst->core->dev;
1646 src_vq->lock = &inst->ctx_q_lock;
1647 ret = vb2_queue_init(src_vq);
1648 if (ret)
1649 return ret;
1650
1651 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1652 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1653 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1654 dst_vq->ops = &vdec_vb2_ops;
1655 dst_vq->mem_ops = &vb2_dma_contig_memops;
1656 dst_vq->drv_priv = inst;
1657 dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1658 dst_vq->allow_zero_bytesused = 1;
1659 dst_vq->min_queued_buffers = 0;
1660 dst_vq->dev = inst->core->dev;
1661 dst_vq->lock = &inst->ctx_q_lock;
1662 return vb2_queue_init(dst_vq);
1663 }
1664
vdec_open(struct file * file)1665 static int vdec_open(struct file *file)
1666 {
1667 struct venus_core *core = video_drvdata(file);
1668 struct venus_inst *inst;
1669 int ret;
1670
1671 inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1672 if (!inst)
1673 return -ENOMEM;
1674
1675 INIT_LIST_HEAD(&inst->dpbbufs);
1676 INIT_LIST_HEAD(&inst->registeredbufs);
1677 INIT_LIST_HEAD(&inst->internalbufs);
1678 INIT_LIST_HEAD(&inst->list);
1679 mutex_init(&inst->lock);
1680 mutex_init(&inst->ctx_q_lock);
1681
1682 inst->core = core;
1683 inst->session_type = VIDC_SESSION_TYPE_DEC;
1684 inst->num_output_bufs = 1;
1685 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1686 inst->buf_count = 0;
1687 inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1688 inst->core_acquired = false;
1689 inst->bit_depth = VIDC_BITDEPTH_8;
1690 inst->pic_struct = HFI_INTERLACE_FRAME_PROGRESSIVE;
1691 init_waitqueue_head(&inst->reconf_wait);
1692 inst->nonblock = file->f_flags & O_NONBLOCK;
1693
1694 venus_helper_init_instance(inst);
1695
1696 ret = vdec_ctrl_init(inst);
1697 if (ret)
1698 goto err_free;
1699
1700 ret = hfi_session_create(inst, &vdec_hfi_ops);
1701 if (ret)
1702 goto err_ctrl_deinit;
1703
1704 vdec_inst_init(inst);
1705
1706 ida_init(&inst->dpb_ids);
1707
1708 /*
1709 * create m2m device for every instance, the m2m context scheduling
1710 * is made by firmware side so we do not need to care about.
1711 */
1712 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1713 if (IS_ERR(inst->m2m_dev)) {
1714 ret = PTR_ERR(inst->m2m_dev);
1715 goto err_session_destroy;
1716 }
1717
1718 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1719 if (IS_ERR(inst->m2m_ctx)) {
1720 ret = PTR_ERR(inst->m2m_ctx);
1721 goto err_m2m_release;
1722 }
1723
1724 v4l2_fh_init(&inst->fh, core->vdev_dec);
1725
1726 inst->fh.ctrl_handler = &inst->ctrl_handler;
1727 v4l2_fh_add(&inst->fh);
1728 inst->fh.m2m_ctx = inst->m2m_ctx;
1729 file->private_data = &inst->fh;
1730
1731 return 0;
1732
1733 err_m2m_release:
1734 v4l2_m2m_release(inst->m2m_dev);
1735 err_session_destroy:
1736 hfi_session_destroy(inst);
1737 err_ctrl_deinit:
1738 vdec_ctrl_deinit(inst);
1739 err_free:
1740 kfree(inst);
1741 return ret;
1742 }
1743
vdec_close(struct file * file)1744 static int vdec_close(struct file *file)
1745 {
1746 struct venus_inst *inst = to_inst(file);
1747
1748 vdec_pm_get(inst);
1749
1750 cancel_work_sync(&inst->delayed_process_work);
1751 v4l2_m2m_ctx_release(inst->m2m_ctx);
1752 v4l2_m2m_release(inst->m2m_dev);
1753 vdec_ctrl_deinit(inst);
1754 ida_destroy(&inst->dpb_ids);
1755 hfi_session_destroy(inst);
1756 mutex_destroy(&inst->lock);
1757 mutex_destroy(&inst->ctx_q_lock);
1758 v4l2_fh_del(&inst->fh);
1759 v4l2_fh_exit(&inst->fh);
1760
1761 vdec_pm_put(inst, false);
1762
1763 kfree(inst);
1764 return 0;
1765 }
1766
1767 static const struct v4l2_file_operations vdec_fops = {
1768 .owner = THIS_MODULE,
1769 .open = vdec_open,
1770 .release = vdec_close,
1771 .unlocked_ioctl = video_ioctl2,
1772 .poll = v4l2_m2m_fop_poll,
1773 .mmap = v4l2_m2m_fop_mmap,
1774 };
1775
vdec_probe(struct platform_device * pdev)1776 static int vdec_probe(struct platform_device *pdev)
1777 {
1778 struct device *dev = &pdev->dev;
1779 struct video_device *vdev;
1780 struct venus_core *core;
1781 int ret;
1782
1783 if (!dev->parent)
1784 return -EPROBE_DEFER;
1785
1786 core = dev_get_drvdata(dev->parent);
1787 if (!core)
1788 return -EPROBE_DEFER;
1789
1790 platform_set_drvdata(pdev, core);
1791
1792 if (core->pm_ops->vdec_get) {
1793 ret = core->pm_ops->vdec_get(dev);
1794 if (ret)
1795 return ret;
1796 }
1797
1798 vdev = video_device_alloc();
1799 if (!vdev)
1800 return -ENOMEM;
1801
1802 strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1803 vdev->release = video_device_release;
1804 vdev->fops = &vdec_fops;
1805 vdev->ioctl_ops = &vdec_ioctl_ops;
1806 vdev->vfl_dir = VFL_DIR_M2M;
1807 vdev->v4l2_dev = &core->v4l2_dev;
1808 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1809
1810 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1811 if (ret)
1812 goto err_vdev_release;
1813
1814 core->vdev_dec = vdev;
1815 core->dev_dec = dev;
1816
1817 video_set_drvdata(vdev, core);
1818 pm_runtime_set_autosuspend_delay(dev, 2000);
1819 pm_runtime_use_autosuspend(dev);
1820 pm_runtime_enable(dev);
1821
1822 return 0;
1823
1824 err_vdev_release:
1825 video_device_release(vdev);
1826 return ret;
1827 }
1828
vdec_remove(struct platform_device * pdev)1829 static void vdec_remove(struct platform_device *pdev)
1830 {
1831 struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1832
1833 video_unregister_device(core->vdev_dec);
1834 pm_runtime_disable(core->dev_dec);
1835
1836 if (core->pm_ops->vdec_put)
1837 core->pm_ops->vdec_put(core->dev_dec);
1838 }
1839
vdec_runtime_suspend(struct device * dev)1840 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1841 {
1842 struct venus_core *core = dev_get_drvdata(dev);
1843 const struct venus_pm_ops *pm_ops = core->pm_ops;
1844 int ret = 0;
1845
1846 if (pm_ops->vdec_power)
1847 ret = pm_ops->vdec_power(dev, POWER_OFF);
1848
1849 return ret;
1850 }
1851
vdec_runtime_resume(struct device * dev)1852 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1853 {
1854 struct venus_core *core = dev_get_drvdata(dev);
1855 const struct venus_pm_ops *pm_ops = core->pm_ops;
1856 int ret = 0;
1857
1858 if (pm_ops->vdec_power)
1859 ret = pm_ops->vdec_power(dev, POWER_ON);
1860
1861 return ret;
1862 }
1863
1864 static const struct dev_pm_ops vdec_pm_ops = {
1865 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1866 pm_runtime_force_resume)
1867 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1868 };
1869
1870 static const struct of_device_id vdec_dt_match[] = {
1871 { .compatible = "venus-decoder" },
1872 { }
1873 };
1874 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1875
1876 static struct platform_driver qcom_venus_dec_driver = {
1877 .probe = vdec_probe,
1878 .remove_new = vdec_remove,
1879 .driver = {
1880 .name = "qcom-venus-decoder",
1881 .of_match_table = vdec_dt_match,
1882 .pm = &vdec_pm_ops,
1883 },
1884 };
1885 module_platform_driver(qcom_venus_dec_driver);
1886
1887 MODULE_ALIAS("platform:qcom-venus-decoder");
1888 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1889 MODULE_LICENSE("GPL v2");
1890