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 = false;
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 {
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 us_per_frame = clamp(us_per_frame, 1, USEC_PER_SEC);
485 fps = USEC_PER_SEC / (u32)us_per_frame;
486 fps = min(VENUS_MAX_FPS, fps);
487
488 inst->fps = fps;
489 inst->timeperframe = *timeperframe;
490
491 return 0;
492 }
493
vdec_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)494 static int vdec_enum_framesizes(struct file *file, void *fh,
495 struct v4l2_frmsizeenum *fsize)
496 {
497 struct venus_inst *inst = to_inst(file);
498 const struct venus_format *fmt;
499
500 fmt = find_format(inst, fsize->pixel_format,
501 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
502 if (!fmt) {
503 fmt = find_format(inst, fsize->pixel_format,
504 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
505 if (!fmt)
506 return -EINVAL;
507 }
508
509 if (fsize->index)
510 return -EINVAL;
511
512 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
513
514 fsize->stepwise.min_width = frame_width_min(inst);
515 fsize->stepwise.max_width = frame_width_max(inst);
516 fsize->stepwise.step_width = frame_width_step(inst);
517 fsize->stepwise.min_height = frame_height_min(inst);
518 fsize->stepwise.max_height = frame_height_max(inst);
519 fsize->stepwise.step_height = frame_height_step(inst);
520
521 return 0;
522 }
523
vdec_subscribe_event(struct v4l2_fh * fh,const struct v4l2_event_subscription * sub)524 static int vdec_subscribe_event(struct v4l2_fh *fh,
525 const struct v4l2_event_subscription *sub)
526 {
527 struct venus_inst *inst = container_of(fh, struct venus_inst, fh);
528 int ret;
529
530 switch (sub->type) {
531 case V4L2_EVENT_EOS:
532 return v4l2_event_subscribe(fh, sub, 2, NULL);
533 case V4L2_EVENT_SOURCE_CHANGE:
534 ret = v4l2_src_change_event_subscribe(fh, sub);
535 if (ret)
536 return ret;
537 inst->subscriptions |= V4L2_EVENT_SOURCE_CHANGE;
538 return 0;
539 case V4L2_EVENT_CTRL:
540 return v4l2_ctrl_subscribe_event(fh, sub);
541 default:
542 return -EINVAL;
543 }
544 }
545
546 static int
vdec_decoder_cmd(struct file * file,void * fh,struct v4l2_decoder_cmd * cmd)547 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
548 {
549 struct venus_inst *inst = to_inst(file);
550 struct vb2_queue *dst_vq;
551 struct hfi_frame_data fdata = {0};
552 int ret;
553
554 ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
555 if (ret)
556 return ret;
557
558 mutex_lock(&inst->lock);
559
560 if (cmd->cmd == V4L2_DEC_CMD_STOP) {
561 /*
562 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on
563 * decoder input to signal EOS.
564 */
565 if (!(inst->streamon_out && inst->streamon_cap))
566 goto unlock;
567
568 fdata.buffer_type = HFI_BUFFER_INPUT;
569 fdata.flags |= HFI_BUFFERFLAG_EOS;
570 if (IS_V6(inst->core) && is_fw_rev_or_older(inst->core, 1, 0, 87))
571 fdata.device_addr = 0;
572 else
573 fdata.device_addr = 0xdeadb000;
574
575 ret = hfi_session_process_buf(inst, &fdata);
576
577 if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
578 inst->codec_state = VENUS_DEC_STATE_DRAIN;
579 inst->drain_active = true;
580 }
581 } else if (cmd->cmd == V4L2_DEC_CMD_START &&
582 inst->codec_state == VENUS_DEC_STATE_STOPPED) {
583 dst_vq = v4l2_m2m_get_vq(inst->fh.m2m_ctx,
584 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
585 vb2_clear_last_buffer_dequeued(dst_vq);
586
587 inst->codec_state = VENUS_DEC_STATE_DECODING;
588 }
589
590 unlock:
591 mutex_unlock(&inst->lock);
592 return ret;
593 }
594
595 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
596 .vidioc_querycap = vdec_querycap,
597 .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
598 .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
599 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
600 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
601 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
602 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
603 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
604 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
605 .vidioc_g_selection = vdec_g_selection,
606 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
607 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
608 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
609 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
610 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
611 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
612 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
613 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
614 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
615 .vidioc_s_parm = vdec_s_parm,
616 .vidioc_enum_framesizes = vdec_enum_framesizes,
617 .vidioc_subscribe_event = vdec_subscribe_event,
618 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
619 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
620 .vidioc_decoder_cmd = vdec_decoder_cmd,
621 };
622
vdec_pm_get(struct venus_inst * inst)623 static int vdec_pm_get(struct venus_inst *inst)
624 {
625 struct venus_core *core = inst->core;
626 struct device *dev = core->dev_dec;
627 int ret;
628
629 mutex_lock(&core->pm_lock);
630 ret = pm_runtime_resume_and_get(dev);
631 mutex_unlock(&core->pm_lock);
632
633 return ret;
634 }
635
vdec_pm_put(struct venus_inst * inst,bool autosuspend)636 static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
637 {
638 struct venus_core *core = inst->core;
639 struct device *dev = core->dev_dec;
640 int ret;
641
642 mutex_lock(&core->pm_lock);
643
644 if (autosuspend)
645 ret = pm_runtime_put_autosuspend(dev);
646 else
647 ret = pm_runtime_put_sync(dev);
648
649 mutex_unlock(&core->pm_lock);
650
651 return ret < 0 ? ret : 0;
652 }
653
vdec_pm_get_put(struct venus_inst * inst)654 static int vdec_pm_get_put(struct venus_inst *inst)
655 {
656 struct venus_core *core = inst->core;
657 struct device *dev = core->dev_dec;
658 int ret = 0;
659
660 mutex_lock(&core->pm_lock);
661
662 if (pm_runtime_suspended(dev)) {
663 ret = pm_runtime_resume_and_get(dev);
664 if (ret < 0)
665 goto error;
666
667 ret = pm_runtime_put_autosuspend(dev);
668 }
669
670 error:
671 mutex_unlock(&core->pm_lock);
672
673 return ret < 0 ? ret : 0;
674 }
675
vdec_pm_touch(struct venus_inst * inst)676 static void vdec_pm_touch(struct venus_inst *inst)
677 {
678 pm_runtime_mark_last_busy(inst->core->dev_dec);
679 }
680
vdec_set_properties(struct venus_inst * inst)681 static int vdec_set_properties(struct venus_inst *inst)
682 {
683 struct vdec_controls *ctr = &inst->controls.dec;
684 struct hfi_enable en = { .enable = 1 };
685 u32 ptype, decode_order, conceal;
686 int ret;
687
688 if (ctr->post_loop_deb_mode) {
689 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
690 ret = hfi_session_set_property(inst, ptype, &en);
691 if (ret)
692 return ret;
693 }
694
695 if (ctr->display_delay_enable && ctr->display_delay == 0) {
696 ptype = HFI_PROPERTY_PARAM_VDEC_OUTPUT_ORDER;
697 decode_order = HFI_OUTPUT_ORDER_DECODE;
698 ret = hfi_session_set_property(inst, ptype, &decode_order);
699 if (ret)
700 return ret;
701 }
702
703 /* Enabling sufficient sequence change support for VP9 */
704 if (is_fw_rev_or_newer(inst->core, 5, 4, 51)) {
705 ptype = HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT;
706 ret = hfi_session_set_property(inst, ptype, &en);
707 if (ret)
708 return ret;
709 }
710
711 ptype = HFI_PROPERTY_PARAM_VDEC_CONCEAL_COLOR;
712 conceal = ctr->conceal_color & 0xffff;
713 conceal |= ((ctr->conceal_color >> 16) & 0xffff) << 10;
714 conceal |= ((ctr->conceal_color >> 32) & 0xffff) << 20;
715
716 ret = hfi_session_set_property(inst, ptype, &conceal);
717 if (ret)
718 return ret;
719
720 return 0;
721 }
722
vdec_set_work_route(struct venus_inst * inst)723 static int vdec_set_work_route(struct venus_inst *inst)
724 {
725 u32 ptype = HFI_PROPERTY_PARAM_WORK_ROUTE;
726 struct hfi_video_work_route wr;
727
728 if (!(IS_IRIS2(inst->core) || IS_IRIS2_1(inst->core)))
729 return 0;
730
731 wr.video_work_route = inst->core->res->num_vpp_pipes;
732
733 return hfi_session_set_property(inst, ptype, &wr);
734 }
735
736 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
737 #define is_10bit_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_10_BIT_BASE & \
738 HFI_COLOR_FORMAT_UBWC_BASE))
739
740
vdec_output_conf(struct venus_inst * inst)741 static int vdec_output_conf(struct venus_inst *inst)
742 {
743 struct venus_core *core = inst->core;
744 struct hfi_enable en = { .enable = 1 };
745 struct hfi_buffer_requirements bufreq;
746 u32 width = inst->width;
747 u32 height = inst->height;
748 u32 out_fmt, out2_fmt;
749 bool ubwc = false;
750 u32 ptype;
751 int ret;
752
753 ret = venus_helper_set_work_mode(inst);
754 if (ret)
755 return ret;
756
757 if (core->res->hfi_version == HFI_VERSION_1XX) {
758 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
759 ret = hfi_session_set_property(inst, ptype, &en);
760 if (ret)
761 return ret;
762 }
763
764 /* Force searching UBWC formats for bigger then HD resolutions */
765 if (width > 1920 && height > ALIGN(1080, 32))
766 ubwc = true;
767
768 /* For Venus v4/v6 UBWC format is mandatory */
769 if (IS_V4(core) || IS_V6(core))
770 ubwc = true;
771
772 ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
773 &out2_fmt, ubwc);
774 if (ret)
775 return ret;
776
777 inst->output_buf_size =
778 venus_helper_get_framesz_raw(out_fmt, width, height);
779 inst->output2_buf_size =
780 venus_helper_get_framesz_raw(out2_fmt, width, height);
781
782 if (is_ubwc_fmt(out_fmt)) {
783 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
784 inst->opb_fmt = out2_fmt;
785 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
786 inst->dpb_fmt = out_fmt;
787 } else if (is_ubwc_fmt(out2_fmt) || is_10bit_ubwc_fmt(out_fmt)) {
788 inst->opb_buftype = HFI_BUFFER_OUTPUT;
789 inst->opb_fmt = out_fmt;
790 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
791 inst->dpb_fmt = out2_fmt;
792 } else {
793 inst->opb_buftype = HFI_BUFFER_OUTPUT;
794 inst->opb_fmt = out_fmt;
795 inst->dpb_buftype = 0;
796 inst->dpb_fmt = 0;
797 }
798
799 ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
800 inst->opb_buftype);
801 if (ret)
802 return ret;
803
804 ret = venus_helper_set_format_constraints(inst);
805 if (ret)
806 return ret;
807
808 if (inst->dpb_fmt) {
809 ret = venus_helper_set_multistream(inst, false, true);
810 if (ret)
811 return ret;
812
813 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
814 inst->dpb_buftype);
815 if (ret)
816 return ret;
817
818 ret = venus_helper_set_output_resolution(inst, width, height,
819 HFI_BUFFER_OUTPUT2);
820 if (ret)
821 return ret;
822 }
823
824 if (IS_V3(core) || IS_V4(core) || IS_V6(core)) {
825 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
826 if (ret)
827 return ret;
828
829 if (bufreq.size > inst->output_buf_size)
830 return -EINVAL;
831
832 if (inst->dpb_fmt) {
833 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT2,
834 &bufreq);
835 if (ret)
836 return ret;
837
838 if (bufreq.size > inst->output2_buf_size)
839 return -EINVAL;
840 }
841
842 if (inst->output2_buf_size) {
843 ret = venus_helper_set_bufsize(inst,
844 inst->output2_buf_size,
845 HFI_BUFFER_OUTPUT2);
846 if (ret)
847 return ret;
848 }
849
850 if (inst->output_buf_size) {
851 ret = venus_helper_set_bufsize(inst,
852 inst->output_buf_size,
853 HFI_BUFFER_OUTPUT);
854 if (ret)
855 return ret;
856 }
857 }
858
859 ret = venus_helper_set_dyn_bufmode(inst);
860 if (ret)
861 return ret;
862
863 return 0;
864 }
865
vdec_session_init(struct venus_inst * inst)866 static int vdec_session_init(struct venus_inst *inst)
867 {
868 int ret;
869
870 ret = venus_helper_session_init(inst);
871 if (ret == -EALREADY)
872 return 0;
873 else if (ret)
874 return ret;
875
876 ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
877 frame_height_min(inst));
878 if (ret)
879 goto deinit;
880
881 return 0;
882 deinit:
883 hfi_session_deinit(inst);
884 return ret;
885 }
886
vdec_num_buffers(struct venus_inst * inst,unsigned int * in_num,unsigned int * out_num)887 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
888 unsigned int *out_num)
889 {
890 enum hfi_version ver = inst->core->res->hfi_version;
891 struct hfi_buffer_requirements bufreq;
892 int ret;
893
894 *in_num = *out_num = 0;
895
896 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
897 if (ret)
898 return ret;
899
900 *in_num = hfi_bufreq_get_count_min(&bufreq, ver);
901
902 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
903 if (ret)
904 return ret;
905
906 *out_num = hfi_bufreq_get_count_min(&bufreq, ver);
907
908 return 0;
909 }
910
vdec_queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])911 static int vdec_queue_setup(struct vb2_queue *q,
912 unsigned int *num_buffers, unsigned int *num_planes,
913 unsigned int sizes[], struct device *alloc_devs[])
914 {
915 struct venus_inst *inst = vb2_get_drv_priv(q);
916 struct venus_core *core = inst->core;
917 unsigned int in_num, out_num;
918 int ret = 0;
919
920 if (*num_planes) {
921 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
922
923 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
924 *num_planes != inst->fmt_out->num_planes)
925 return -EINVAL;
926
927 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
928 *num_planes != inst->fmt_cap->num_planes)
929 return -EINVAL;
930
931 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
932 sizes[0] < inst->input_buf_size)
933 return -EINVAL;
934
935 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
936 sizes[0] < output_buf_size)
937 return -EINVAL;
938
939 return 0;
940 }
941
942 if (test_bit(0, &core->sys_error)) {
943 if (inst->nonblock)
944 return -EAGAIN;
945
946 ret = wait_event_interruptible(core->sys_err_done,
947 !test_bit(0, &core->sys_error));
948 if (ret)
949 return ret;
950 }
951
952 ret = vdec_pm_get(inst);
953 if (ret)
954 return ret;
955
956 ret = vdec_session_init(inst);
957 if (ret)
958 goto put_power;
959
960 ret = vdec_num_buffers(inst, &in_num, &out_num);
961 if (ret)
962 goto put_power;
963
964 ret = vdec_pm_put(inst, false);
965 if (ret)
966 return ret;
967
968 switch (q->type) {
969 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
970 *num_planes = inst->fmt_out->num_planes;
971 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
972 inst->out_width,
973 inst->out_height);
974 sizes[0] = max(sizes[0], inst->input_buf_size);
975 inst->input_buf_size = sizes[0];
976 *num_buffers = max(*num_buffers, in_num);
977 inst->num_input_bufs = *num_buffers;
978 inst->num_output_bufs = out_num;
979 break;
980 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
981 *num_planes = inst->fmt_cap->num_planes;
982 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
983 inst->width,
984 inst->height);
985 inst->output_buf_size = sizes[0];
986 *num_buffers = max(*num_buffers, out_num);
987 inst->num_output_bufs = *num_buffers;
988
989 mutex_lock(&inst->lock);
990 if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
991 inst->codec_state = VENUS_DEC_STATE_STOPPED;
992 mutex_unlock(&inst->lock);
993 break;
994 default:
995 ret = -EINVAL;
996 break;
997 }
998
999 return ret;
1000
1001 put_power:
1002 vdec_pm_put(inst, false);
1003 return ret;
1004 }
1005
vdec_verify_conf(struct venus_inst * inst)1006 static int vdec_verify_conf(struct venus_inst *inst)
1007 {
1008 enum hfi_version ver = inst->core->res->hfi_version;
1009 struct hfi_buffer_requirements bufreq;
1010 int ret;
1011
1012 if (!inst->num_input_bufs || !inst->num_output_bufs)
1013 return -EINVAL;
1014
1015 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1016 if (ret)
1017 return ret;
1018
1019 if (inst->num_output_bufs < bufreq.count_actual ||
1020 inst->num_output_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1021 return -EINVAL;
1022
1023 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1024 if (ret)
1025 return ret;
1026
1027 if (inst->num_input_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1028 return -EINVAL;
1029
1030 return 0;
1031 }
1032
vdec_start_capture(struct venus_inst * inst)1033 static int vdec_start_capture(struct venus_inst *inst)
1034 {
1035 int ret;
1036
1037 if (!inst->streamon_out)
1038 return 0;
1039
1040 if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
1041 if (inst->reconfig)
1042 goto reconfigure;
1043
1044 venus_helper_queue_dpb_bufs(inst);
1045 venus_helper_process_initial_cap_bufs(inst);
1046 inst->streamon_cap = 1;
1047 return 0;
1048 }
1049
1050 if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
1051 return 0;
1052
1053 reconfigure:
1054 ret = vdec_output_conf(inst);
1055 if (ret)
1056 return ret;
1057
1058 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1059 VB2_MAX_FRAME, VB2_MAX_FRAME);
1060 if (ret)
1061 return ret;
1062
1063 ret = venus_helper_intbufs_realloc(inst);
1064 if (ret)
1065 goto err;
1066
1067 venus_pm_load_scale(inst);
1068
1069 inst->next_buf_last = false;
1070
1071 ret = venus_helper_alloc_dpb_bufs(inst);
1072 if (ret)
1073 goto err;
1074
1075 ret = hfi_session_continue(inst);
1076 if (ret)
1077 goto free_dpb_bufs;
1078
1079 ret = venus_helper_queue_dpb_bufs(inst);
1080 if (ret)
1081 goto free_dpb_bufs;
1082
1083 ret = venus_helper_process_initial_cap_bufs(inst);
1084 if (ret)
1085 goto free_dpb_bufs;
1086
1087 inst->codec_state = VENUS_DEC_STATE_DECODING;
1088
1089 if (inst->drain_active)
1090 inst->codec_state = VENUS_DEC_STATE_DRAIN;
1091
1092 inst->streamon_cap = 1;
1093 inst->sequence_cap = 0;
1094 inst->reconfig = false;
1095 inst->drain_active = false;
1096
1097 return 0;
1098
1099 free_dpb_bufs:
1100 venus_helper_free_dpb_bufs(inst);
1101 err:
1102 return ret;
1103 }
1104
vdec_start_output(struct venus_inst * inst)1105 static int vdec_start_output(struct venus_inst *inst)
1106 {
1107 int ret;
1108
1109 if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
1110 ret = venus_helper_process_initial_out_bufs(inst);
1111 if (ret)
1112 return ret;
1113
1114 if (inst->next_buf_last) {
1115 inst->codec_state = VENUS_DEC_STATE_DRC;
1116 } else {
1117 inst->codec_state = VENUS_DEC_STATE_DECODING;
1118
1119 if (inst->streamon_cap) {
1120 ret = venus_helper_queue_dpb_bufs(inst);
1121 if (ret)
1122 return ret;
1123 }
1124 }
1125 goto done;
1126 }
1127
1128 if (inst->codec_state == VENUS_DEC_STATE_INIT ||
1129 inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
1130 ret = venus_helper_process_initial_out_bufs(inst);
1131 goto done;
1132 }
1133
1134 if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
1135 return -EINVAL;
1136
1137 venus_helper_init_instance(inst);
1138 inst->sequence_out = 0;
1139 inst->reconfig = false;
1140 inst->next_buf_last = false;
1141
1142 ret = vdec_set_properties(inst);
1143 if (ret)
1144 return ret;
1145
1146 ret = vdec_set_work_route(inst);
1147 if (ret)
1148 return ret;
1149
1150 ret = vdec_output_conf(inst);
1151 if (ret)
1152 return ret;
1153
1154 ret = vdec_verify_conf(inst);
1155 if (ret)
1156 return ret;
1157
1158 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1159 VB2_MAX_FRAME, VB2_MAX_FRAME);
1160 if (ret)
1161 return ret;
1162
1163 ret = venus_helper_vb2_start_streaming(inst);
1164 if (ret)
1165 return ret;
1166
1167 ret = venus_helper_process_initial_out_bufs(inst);
1168 if (ret)
1169 return ret;
1170
1171 inst->codec_state = VENUS_DEC_STATE_INIT;
1172
1173 done:
1174 inst->streamon_out = 1;
1175 return ret;
1176 }
1177
vdec_start_streaming(struct vb2_queue * q,unsigned int count)1178 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1179 {
1180 struct venus_inst *inst = vb2_get_drv_priv(q);
1181 int ret;
1182
1183 mutex_lock(&inst->lock);
1184
1185 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1186 ret = vdec_start_capture(inst);
1187 } else {
1188 ret = vdec_pm_get(inst);
1189 if (ret)
1190 goto error;
1191
1192 ret = venus_pm_acquire_core(inst);
1193 if (ret)
1194 goto put_power;
1195
1196 ret = vdec_pm_put(inst, true);
1197 if (ret)
1198 goto error;
1199
1200 ret = vdec_start_output(inst);
1201 }
1202
1203 if (ret)
1204 goto error;
1205
1206 mutex_unlock(&inst->lock);
1207 return 0;
1208
1209 put_power:
1210 vdec_pm_put(inst, false);
1211 error:
1212 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1213 mutex_unlock(&inst->lock);
1214 return ret;
1215 }
1216
vdec_cancel_dst_buffers(struct venus_inst * inst)1217 static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1218 {
1219 struct vb2_v4l2_buffer *buf;
1220
1221 while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1222 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1223 }
1224
vdec_stop_capture(struct venus_inst * inst)1225 static int vdec_stop_capture(struct venus_inst *inst)
1226 {
1227 int ret = 0;
1228
1229 switch (inst->codec_state) {
1230 case VENUS_DEC_STATE_DECODING:
1231 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1232 fallthrough;
1233 case VENUS_DEC_STATE_DRAIN:
1234 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1235 inst->drain_active = false;
1236 fallthrough;
1237 case VENUS_DEC_STATE_SEEK:
1238 vdec_cancel_dst_buffers(inst);
1239 break;
1240 case VENUS_DEC_STATE_DRC:
1241 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
1242 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1243 venus_helper_free_dpb_bufs(inst);
1244 break;
1245 default:
1246 break;
1247 }
1248
1249 return ret;
1250 }
1251
vdec_stop_output(struct venus_inst * inst)1252 static int vdec_stop_output(struct venus_inst *inst)
1253 {
1254 int ret = 0;
1255
1256 switch (inst->codec_state) {
1257 case VENUS_DEC_STATE_DECODING:
1258 case VENUS_DEC_STATE_DRAIN:
1259 case VENUS_DEC_STATE_STOPPED:
1260 case VENUS_DEC_STATE_DRC:
1261 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1262 inst->codec_state = VENUS_DEC_STATE_SEEK;
1263 break;
1264 case VENUS_DEC_STATE_INIT:
1265 case VENUS_DEC_STATE_CAPTURE_SETUP:
1266 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1267 break;
1268 default:
1269 break;
1270 }
1271
1272 return ret;
1273 }
1274
vdec_stop_streaming(struct vb2_queue * q)1275 static void vdec_stop_streaming(struct vb2_queue *q)
1276 {
1277 struct venus_inst *inst = vb2_get_drv_priv(q);
1278 int ret = -EINVAL;
1279
1280 vdec_pm_get_put(inst);
1281
1282 mutex_lock(&inst->lock);
1283
1284 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1285 ret = vdec_stop_capture(inst);
1286 else
1287 ret = vdec_stop_output(inst);
1288
1289 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1290
1291 inst->session_error = 0;
1292
1293 if (ret)
1294 goto unlock;
1295
1296 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1297 inst->streamon_out = 0;
1298 else
1299 inst->streamon_cap = 0;
1300
1301 unlock:
1302 mutex_unlock(&inst->lock);
1303 }
1304
vdec_session_release(struct venus_inst * inst)1305 static void vdec_session_release(struct venus_inst *inst)
1306 {
1307 struct venus_core *core = inst->core;
1308 int ret, abort = 0;
1309
1310 vdec_pm_get(inst);
1311
1312 mutex_lock(&inst->lock);
1313 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1314
1315 ret = hfi_session_stop(inst);
1316 abort = (ret && ret != -EINVAL) ? 1 : 0;
1317 ret = hfi_session_unload_res(inst);
1318 abort = (ret && ret != -EINVAL) ? 1 : 0;
1319 ret = venus_helper_unregister_bufs(inst);
1320 abort = (ret && ret != -EINVAL) ? 1 : 0;
1321 ret = venus_helper_intbufs_free(inst);
1322 abort = (ret && ret != -EINVAL) ? 1 : 0;
1323 ret = hfi_session_deinit(inst);
1324 abort = (ret && ret != -EINVAL) ? 1 : 0;
1325
1326 if (inst->session_error || test_bit(0, &core->sys_error))
1327 abort = 1;
1328
1329 if (abort)
1330 hfi_session_abort(inst);
1331
1332 venus_helper_free_dpb_bufs(inst);
1333 venus_pm_load_scale(inst);
1334 INIT_LIST_HEAD(&inst->registeredbufs);
1335 mutex_unlock(&inst->lock);
1336
1337 venus_pm_release_core(inst);
1338 vdec_pm_put(inst, false);
1339 }
1340
vdec_buf_init(struct vb2_buffer * vb)1341 static int vdec_buf_init(struct vb2_buffer *vb)
1342 {
1343 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1344
1345 inst->buf_count++;
1346
1347 return venus_helper_vb2_buf_init(vb);
1348 }
1349
vdec_buf_cleanup(struct vb2_buffer * vb)1350 static void vdec_buf_cleanup(struct vb2_buffer *vb)
1351 {
1352 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1353 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1354 struct venus_buffer *buf = to_venus_buffer(vbuf);
1355
1356 mutex_lock(&inst->lock);
1357 if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1358 if (!list_empty(&inst->registeredbufs))
1359 list_del_init(&buf->reg_list);
1360 mutex_unlock(&inst->lock);
1361
1362 inst->buf_count--;
1363 if (!inst->buf_count)
1364 vdec_session_release(inst);
1365 }
1366
vdec_vb2_buf_queue(struct vb2_buffer * vb)1367 static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1368 {
1369 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1370 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1371 static const struct v4l2_event eos = { .type = V4L2_EVENT_EOS };
1372
1373 vdec_pm_get_put(inst);
1374
1375 mutex_lock(&inst->lock);
1376
1377 if (inst->next_buf_last && V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
1378 inst->codec_state == VENUS_DEC_STATE_DRC) {
1379 vbuf->flags |= V4L2_BUF_FLAG_LAST;
1380 vbuf->sequence = inst->sequence_cap++;
1381 vbuf->field = V4L2_FIELD_NONE;
1382 vb2_set_plane_payload(vb, 0, 0);
1383 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1384 v4l2_event_queue_fh(&inst->fh, &eos);
1385 inst->next_buf_last = false;
1386 mutex_unlock(&inst->lock);
1387 return;
1388 }
1389
1390 venus_helper_vb2_buf_queue(vb);
1391 mutex_unlock(&inst->lock);
1392 }
1393
1394 static const struct vb2_ops vdec_vb2_ops = {
1395 .queue_setup = vdec_queue_setup,
1396 .buf_init = vdec_buf_init,
1397 .buf_cleanup = vdec_buf_cleanup,
1398 .buf_prepare = venus_helper_vb2_buf_prepare,
1399 .start_streaming = vdec_start_streaming,
1400 .stop_streaming = vdec_stop_streaming,
1401 .buf_queue = vdec_vb2_buf_queue,
1402 };
1403
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)1404 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1405 u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1406 u32 hfi_flags, u64 timestamp_us)
1407 {
1408 enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1409 struct vb2_v4l2_buffer *vbuf;
1410 struct vb2_buffer *vb;
1411 unsigned int type;
1412
1413 vdec_pm_touch(inst);
1414
1415 if (buf_type == HFI_BUFFER_INPUT)
1416 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1417 else
1418 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1419
1420 vbuf = venus_helper_find_buf(inst, type, tag);
1421 if (!vbuf) {
1422 venus_helper_change_dpb_owner(inst, vbuf, type, buf_type, tag);
1423 return;
1424 }
1425
1426 vbuf->flags = flags;
1427 vbuf->field = V4L2_FIELD_NONE;
1428 vb = &vbuf->vb2_buf;
1429
1430 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1431 vb2_set_plane_payload(vb, 0, bytesused);
1432 vb->planes[0].data_offset = data_offset;
1433 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1434 vbuf->sequence = inst->sequence_cap++;
1435
1436 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1437 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1438
1439 v4l2_event_queue_fh(&inst->fh, &ev);
1440
1441 if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
1442 inst->drain_active = false;
1443 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1444 }
1445 }
1446
1447 if (!bytesused)
1448 state = VB2_BUF_STATE_ERROR;
1449 } else {
1450 vbuf->sequence = inst->sequence_out++;
1451 }
1452
1453 venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1454
1455 if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1456 venus_helper_acquire_buf_ref(vbuf);
1457
1458 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1459 state = VB2_BUF_STATE_ERROR;
1460
1461 if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1462 state = VB2_BUF_STATE_ERROR;
1463 vb2_set_plane_payload(vb, 0, 0);
1464 vb->timestamp = 0;
1465 }
1466
1467 v4l2_m2m_buf_done(vbuf, state);
1468 }
1469
vdec_event_change(struct venus_inst * inst,struct hfi_event_data * ev_data,bool sufficient)1470 static void vdec_event_change(struct venus_inst *inst,
1471 struct hfi_event_data *ev_data, bool sufficient)
1472 {
1473 static const struct v4l2_event ev = {
1474 .type = V4L2_EVENT_SOURCE_CHANGE,
1475 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1476 struct device *dev = inst->core->dev_dec;
1477 struct v4l2_format format = {};
1478
1479 mutex_lock(&inst->lock);
1480
1481 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1482 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1483 format.fmt.pix_mp.width = ev_data->width;
1484 format.fmt.pix_mp.height = ev_data->height;
1485
1486 vdec_try_fmt_common(inst, &format);
1487
1488 inst->width = format.fmt.pix_mp.width;
1489 inst->height = format.fmt.pix_mp.height;
1490 /*
1491 * Some versions of the firmware do not report crop information for
1492 * all codecs. For these cases, set the crop to the coded resolution.
1493 */
1494 if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
1495 inst->crop.left = ev_data->input_crop.left;
1496 inst->crop.top = ev_data->input_crop.top;
1497 inst->crop.width = ev_data->input_crop.width;
1498 inst->crop.height = ev_data->input_crop.height;
1499 } else {
1500 inst->crop.left = 0;
1501 inst->crop.top = 0;
1502 inst->crop.width = ev_data->width;
1503 inst->crop.height = ev_data->height;
1504 }
1505
1506 inst->fw_min_cnt = ev_data->buf_count;
1507 /* overwriting this to 11 for vp9 due to fw bug */
1508 if (inst->hfi_codec == HFI_VIDEO_CODEC_VP9)
1509 inst->fw_min_cnt = 11;
1510
1511 inst->out_width = ev_data->width;
1512 inst->out_height = ev_data->height;
1513
1514 if (inst->bit_depth != ev_data->bit_depth) {
1515 inst->bit_depth = ev_data->bit_depth;
1516 if (inst->bit_depth == VIDC_BITDEPTH_10)
1517 inst->fmt_cap = &vdec_formats[VENUS_FMT_P010];
1518 else
1519 inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1520 }
1521
1522 if (inst->pic_struct != ev_data->pic_struct)
1523 inst->pic_struct = ev_data->pic_struct;
1524
1525 dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1526 sufficient ? "" : "not", ev_data->width, ev_data->height);
1527
1528 switch (inst->codec_state) {
1529 case VENUS_DEC_STATE_INIT:
1530 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1531 break;
1532 case VENUS_DEC_STATE_DECODING:
1533 case VENUS_DEC_STATE_DRAIN:
1534 inst->codec_state = VENUS_DEC_STATE_DRC;
1535 break;
1536 default:
1537 break;
1538 }
1539
1540 /*
1541 * The assumption is that the firmware have to return the last buffer
1542 * before this event is received in the v4l2 driver. Also the firmware
1543 * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1544 */
1545
1546 if (inst->codec_state == VENUS_DEC_STATE_DRC) {
1547 int ret;
1548
1549 inst->next_buf_last = true;
1550
1551 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1552 if (ret)
1553 dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1554 }
1555
1556 inst->next_buf_last = true;
1557 inst->reconfig = true;
1558 v4l2_event_queue_fh(&inst->fh, &ev);
1559 wake_up(&inst->reconf_wait);
1560
1561 mutex_unlock(&inst->lock);
1562 }
1563
vdec_event_notify(struct venus_inst * inst,u32 event,struct hfi_event_data * data)1564 static void vdec_event_notify(struct venus_inst *inst, u32 event,
1565 struct hfi_event_data *data)
1566 {
1567 struct venus_core *core = inst->core;
1568 struct device *dev = core->dev_dec;
1569
1570 vdec_pm_touch(inst);
1571
1572 switch (event) {
1573 case EVT_SESSION_ERROR:
1574 inst->session_error = true;
1575 venus_helper_vb2_queue_error(inst);
1576 dev_err(dev, "dec: event session error %x\n", inst->error);
1577 break;
1578 case EVT_SYS_EVENT_CHANGE:
1579 switch (data->event_type) {
1580 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1581 vdec_event_change(inst, data, true);
1582 break;
1583 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1584 vdec_event_change(inst, data, false);
1585 break;
1586 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1587 venus_helper_release_buf_ref(inst, data->tag);
1588 break;
1589 default:
1590 break;
1591 }
1592 break;
1593 default:
1594 break;
1595 }
1596 }
1597
vdec_flush_done(struct venus_inst * inst)1598 static void vdec_flush_done(struct venus_inst *inst)
1599 {
1600 dev_dbg(inst->core->dev_dec, VDBGH "flush done\n");
1601 }
1602
1603 static const struct hfi_inst_ops vdec_hfi_ops = {
1604 .buf_done = vdec_buf_done,
1605 .event_notify = vdec_event_notify,
1606 .flush_done = vdec_flush_done,
1607 };
1608
vdec_inst_init(struct venus_inst * inst)1609 static void vdec_inst_init(struct venus_inst *inst)
1610 {
1611 inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1612 inst->fmt_out = &vdec_formats[VENUS_FMT_H264];
1613 inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1614 inst->width = frame_width_min(inst);
1615 inst->height = ALIGN(frame_height_min(inst), 32);
1616 inst->crop.left = 0;
1617 inst->crop.top = 0;
1618 inst->crop.width = inst->width;
1619 inst->crop.height = inst->height;
1620 inst->fw_min_cnt = 8;
1621 inst->out_width = frame_width_min(inst);
1622 inst->out_height = frame_height_min(inst);
1623 inst->fps = 30;
1624 inst->timeperframe.numerator = 1;
1625 inst->timeperframe.denominator = 30;
1626 inst->opb_buftype = HFI_BUFFER_OUTPUT;
1627 }
1628
vdec_m2m_device_run(void * priv)1629 static void vdec_m2m_device_run(void *priv)
1630 {
1631 }
1632
1633 static const struct v4l2_m2m_ops vdec_m2m_ops = {
1634 .device_run = vdec_m2m_device_run,
1635 .job_abort = venus_helper_m2m_job_abort,
1636 };
1637
m2m_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)1638 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1639 struct vb2_queue *dst_vq)
1640 {
1641 struct venus_inst *inst = priv;
1642 int ret;
1643
1644 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1645 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1646 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1647 src_vq->ops = &vdec_vb2_ops;
1648 src_vq->mem_ops = &vb2_dma_contig_memops;
1649 src_vq->drv_priv = inst;
1650 src_vq->buf_struct_size = sizeof(struct venus_buffer);
1651 src_vq->allow_zero_bytesused = 1;
1652 src_vq->min_queued_buffers = 0;
1653 src_vq->dev = inst->core->dev;
1654 src_vq->lock = &inst->ctx_q_lock;
1655 ret = vb2_queue_init(src_vq);
1656 if (ret)
1657 return ret;
1658
1659 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1660 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1661 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1662 dst_vq->ops = &vdec_vb2_ops;
1663 dst_vq->mem_ops = &vb2_dma_contig_memops;
1664 dst_vq->drv_priv = inst;
1665 dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1666 dst_vq->allow_zero_bytesused = 1;
1667 dst_vq->min_queued_buffers = 0;
1668 dst_vq->dev = inst->core->dev;
1669 dst_vq->lock = &inst->ctx_q_lock;
1670 return vb2_queue_init(dst_vq);
1671 }
1672
vdec_open(struct file * file)1673 static int vdec_open(struct file *file)
1674 {
1675 struct venus_core *core = video_drvdata(file);
1676 struct venus_inst *inst;
1677 int ret;
1678
1679 inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1680 if (!inst)
1681 return -ENOMEM;
1682
1683 INIT_LIST_HEAD(&inst->dpbbufs);
1684 INIT_LIST_HEAD(&inst->registeredbufs);
1685 INIT_LIST_HEAD(&inst->internalbufs);
1686 INIT_LIST_HEAD(&inst->list);
1687 mutex_init(&inst->lock);
1688 mutex_init(&inst->ctx_q_lock);
1689
1690 inst->core = core;
1691 inst->session_type = VIDC_SESSION_TYPE_DEC;
1692 inst->num_output_bufs = 1;
1693 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1694 inst->buf_count = 0;
1695 inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1696 inst->core_acquired = false;
1697 inst->bit_depth = VIDC_BITDEPTH_8;
1698 inst->pic_struct = HFI_INTERLACE_FRAME_PROGRESSIVE;
1699 init_waitqueue_head(&inst->reconf_wait);
1700 inst->nonblock = file->f_flags & O_NONBLOCK;
1701
1702 venus_helper_init_instance(inst);
1703
1704 ret = vdec_ctrl_init(inst);
1705 if (ret)
1706 goto err_free;
1707
1708 vdec_inst_init(inst);
1709
1710 ida_init(&inst->dpb_ids);
1711
1712 /*
1713 * create m2m device for every instance, the m2m context scheduling
1714 * is made by firmware side so we do not need to care about.
1715 */
1716 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1717 if (IS_ERR(inst->m2m_dev)) {
1718 ret = PTR_ERR(inst->m2m_dev);
1719 goto err_ctrl_deinit;
1720 }
1721
1722 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1723 if (IS_ERR(inst->m2m_ctx)) {
1724 ret = PTR_ERR(inst->m2m_ctx);
1725 goto err_m2m_dev_release;
1726 }
1727
1728 ret = hfi_session_create(inst, &vdec_hfi_ops);
1729 if (ret)
1730 goto err_m2m_ctx_release;
1731
1732 v4l2_fh_init(&inst->fh, core->vdev_dec);
1733
1734 inst->fh.ctrl_handler = &inst->ctrl_handler;
1735 v4l2_fh_add(&inst->fh);
1736 inst->fh.m2m_ctx = inst->m2m_ctx;
1737 file->private_data = &inst->fh;
1738
1739 return 0;
1740
1741 err_m2m_ctx_release:
1742 v4l2_m2m_ctx_release(inst->m2m_ctx);
1743 err_m2m_dev_release:
1744 v4l2_m2m_release(inst->m2m_dev);
1745 err_ctrl_deinit:
1746 v4l2_ctrl_handler_free(&inst->ctrl_handler);
1747 err_free:
1748 kfree(inst);
1749 return ret;
1750 }
1751
vdec_close(struct file * file)1752 static int vdec_close(struct file *file)
1753 {
1754 struct venus_inst *inst = to_inst(file);
1755
1756 vdec_pm_get(inst);
1757 cancel_work_sync(&inst->delayed_process_work);
1758 venus_close_common(inst);
1759 ida_destroy(&inst->dpb_ids);
1760 vdec_pm_put(inst, false);
1761
1762 kfree(inst);
1763 return 0;
1764 }
1765
1766 static const struct v4l2_file_operations vdec_fops = {
1767 .owner = THIS_MODULE,
1768 .open = vdec_open,
1769 .release = vdec_close,
1770 .unlocked_ioctl = video_ioctl2,
1771 .poll = v4l2_m2m_fop_poll,
1772 .mmap = v4l2_m2m_fop_mmap,
1773 };
1774
vdec_probe(struct platform_device * pdev)1775 static int vdec_probe(struct platform_device *pdev)
1776 {
1777 struct device *dev = &pdev->dev;
1778 struct video_device *vdev;
1779 struct venus_core *core;
1780 int ret;
1781
1782 if (!dev->parent)
1783 return -EPROBE_DEFER;
1784
1785 core = dev_get_drvdata(dev->parent);
1786 if (!core)
1787 return -EPROBE_DEFER;
1788
1789 platform_set_drvdata(pdev, core);
1790
1791 if (core->pm_ops->vdec_get) {
1792 ret = core->pm_ops->vdec_get(dev);
1793 if (ret)
1794 return ret;
1795 }
1796
1797 vdev = video_device_alloc();
1798 if (!vdev)
1799 return -ENOMEM;
1800
1801 strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1802 vdev->release = video_device_release;
1803 vdev->fops = &vdec_fops;
1804 vdev->ioctl_ops = &vdec_ioctl_ops;
1805 vdev->vfl_dir = VFL_DIR_M2M;
1806 vdev->v4l2_dev = &core->v4l2_dev;
1807 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1808
1809 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1810 if (ret)
1811 goto err_vdev_release;
1812
1813 core->vdev_dec = vdev;
1814 core->dev_dec = dev;
1815
1816 video_set_drvdata(vdev, core);
1817 pm_runtime_set_autosuspend_delay(dev, 2000);
1818 pm_runtime_use_autosuspend(dev);
1819 pm_runtime_enable(dev);
1820
1821 return 0;
1822
1823 err_vdev_release:
1824 video_device_release(vdev);
1825 return ret;
1826 }
1827
vdec_remove(struct platform_device * pdev)1828 static void vdec_remove(struct platform_device *pdev)
1829 {
1830 struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1831
1832 video_unregister_device(core->vdev_dec);
1833 pm_runtime_disable(core->dev_dec);
1834
1835 if (core->pm_ops->vdec_put)
1836 core->pm_ops->vdec_put(core->dev_dec);
1837 }
1838
vdec_runtime_suspend(struct device * dev)1839 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1840 {
1841 struct venus_core *core = dev_get_drvdata(dev);
1842 const struct venus_pm_ops *pm_ops = core->pm_ops;
1843 int ret = 0;
1844
1845 if (pm_ops->vdec_power)
1846 ret = pm_ops->vdec_power(dev, POWER_OFF);
1847
1848 return ret;
1849 }
1850
vdec_runtime_resume(struct device * dev)1851 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1852 {
1853 struct venus_core *core = dev_get_drvdata(dev);
1854 const struct venus_pm_ops *pm_ops = core->pm_ops;
1855 int ret = 0;
1856
1857 if (pm_ops->vdec_power)
1858 ret = pm_ops->vdec_power(dev, POWER_ON);
1859
1860 return ret;
1861 }
1862
1863 static const struct dev_pm_ops vdec_pm_ops = {
1864 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1865 pm_runtime_force_resume)
1866 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1867 };
1868
1869 static const struct of_device_id vdec_dt_match[] = {
1870 { .compatible = "venus-decoder" },
1871 { }
1872 };
1873 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1874
1875 static struct platform_driver qcom_venus_dec_driver = {
1876 .probe = vdec_probe,
1877 .remove = vdec_remove,
1878 .driver = {
1879 .name = "qcom-venus-decoder",
1880 .of_match_table = vdec_dt_match,
1881 .pm = &vdec_pm_ops,
1882 },
1883 };
1884 module_platform_driver(qcom_venus_dec_driver);
1885
1886 MODULE_ALIAS("platform:qcom-venus-decoder");
1887 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1888 MODULE_LICENSE("GPL v2");
1889