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
333 if (vb2_is_busy(q))
334 return -EBUSY;
335
336 orig_pixmp = *pixmp;
337
338 fmt = vdec_try_fmt_common(inst, f);
339
340 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
341 pixfmt_out = pixmp->pixelformat;
342 pixfmt_cap = inst->fmt_cap->pixfmt;
343 } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
344 pixfmt_cap = pixmp->pixelformat;
345 pixfmt_out = inst->fmt_out->pixfmt;
346 }
347
348 memset(&format, 0, sizeof(format));
349
350 format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
351 format.fmt.pix_mp.pixelformat = pixfmt_out;
352 format.fmt.pix_mp.width = orig_pixmp.width;
353 format.fmt.pix_mp.height = orig_pixmp.height;
354 vdec_try_fmt_common(inst, &format);
355
356 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
357 inst->out_width = format.fmt.pix_mp.width;
358 inst->out_height = format.fmt.pix_mp.height;
359 inst->colorspace = pixmp->colorspace;
360 inst->ycbcr_enc = pixmp->ycbcr_enc;
361 inst->quantization = pixmp->quantization;
362 inst->xfer_func = pixmp->xfer_func;
363 inst->input_buf_size = pixmp->plane_fmt[0].sizeimage;
364 }
365
366 memset(&format, 0, sizeof(format));
367
368 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
369 format.fmt.pix_mp.pixelformat = pixfmt_cap;
370 format.fmt.pix_mp.width = orig_pixmp.width;
371 format.fmt.pix_mp.height = orig_pixmp.height;
372 vdec_try_fmt_common(inst, &format);
373
374 inst->width = format.fmt.pix_mp.width;
375 inst->height = format.fmt.pix_mp.height;
376 inst->crop.top = 0;
377 inst->crop.left = 0;
378 inst->crop.width = inst->width;
379 inst->crop.height = inst->height;
380
381 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
382 inst->fmt_out = fmt;
383 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
384 inst->fmt_cap = fmt;
385 inst->output2_buf_size =
386 venus_helper_get_framesz(pixfmt_cap, orig_pixmp.width, orig_pixmp.height);
387 }
388
389 return 0;
390 }
391
392 static int
vdec_g_selection(struct file * file,void * fh,struct v4l2_selection * s)393 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
394 {
395 struct venus_inst *inst = to_inst(file);
396
397 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
398 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
399 return -EINVAL;
400
401 s->r.top = 0;
402 s->r.left = 0;
403
404 switch (s->target) {
405 case V4L2_SEL_TGT_CROP_BOUNDS:
406 case V4L2_SEL_TGT_CROP_DEFAULT:
407 case V4L2_SEL_TGT_CROP:
408 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
409 return -EINVAL;
410 s->r.width = inst->out_width;
411 s->r.height = inst->out_height;
412 break;
413 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
414 case V4L2_SEL_TGT_COMPOSE_PADDED:
415 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
416 return -EINVAL;
417 s->r.width = inst->width;
418 s->r.height = inst->height;
419 break;
420 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
421 case V4L2_SEL_TGT_COMPOSE:
422 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
423 return -EINVAL;
424 s->r = inst->crop;
425 break;
426 default:
427 return -EINVAL;
428 }
429
430 return 0;
431 }
432
433 static int
vdec_querycap(struct file * file,void * fh,struct v4l2_capability * cap)434 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
435 {
436 struct venus_inst *inst = to_inst(file);
437 struct venus_core *core = inst->core;
438
439 strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
440 strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
441 snprintf(cap->bus_info, sizeof(cap->bus_info),
442 "plat:%s:dec", dev_name(core->dev));
443
444 return 0;
445 }
446
vdec_enum_fmt(struct file * file,void * fh,struct v4l2_fmtdesc * f)447 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
448 {
449 struct venus_inst *inst = to_inst(file);
450 const struct venus_format *fmt;
451
452 memset(f->reserved, 0, sizeof(f->reserved));
453
454 fmt = find_format_by_index(inst, f->index, f->type);
455 if (!fmt)
456 return -EINVAL;
457
458 f->pixelformat = fmt->pixfmt;
459 f->flags = fmt->flags;
460
461 return 0;
462 }
463
vdec_s_parm(struct file * file,void * fh,struct v4l2_streamparm * a)464 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
465 {
466 struct venus_inst *inst = to_inst(file);
467 struct v4l2_captureparm *cap = &a->parm.capture;
468 struct v4l2_fract *timeperframe = &cap->timeperframe;
469 u64 us_per_frame, fps;
470
471 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
472 a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
473 return -EINVAL;
474
475 memset(cap->reserved, 0, sizeof(cap->reserved));
476 if (!timeperframe->denominator)
477 timeperframe->denominator = inst->timeperframe.denominator;
478 if (!timeperframe->numerator)
479 timeperframe->numerator = inst->timeperframe.numerator;
480 cap->readbuffers = 0;
481 cap->extendedmode = 0;
482 cap->capability = V4L2_CAP_TIMEPERFRAME;
483 us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
484 do_div(us_per_frame, timeperframe->denominator);
485
486 us_per_frame = clamp(us_per_frame, 1, USEC_PER_SEC);
487 fps = USEC_PER_SEC / (u32)us_per_frame;
488 fps = min(VENUS_MAX_FPS, fps);
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
573 /* Send NULL EOS addr for only IRIS2 (SM8250),for firmware <= 1.0.87.
574 * SC7280 also reports "1.0.<hash>" parsed as 1.0.0; restricting to IRIS2
575 * avoids misapplying this quirk and breaking VP9 decode on SC7280.
576 */
577
578 if (IS_IRIS2(inst->core) && is_fw_rev_or_older(inst->core, 1, 0, 87))
579 fdata.device_addr = 0;
580 else
581 fdata.device_addr = 0xdeadb000;
582
583 ret = hfi_session_process_buf(inst, &fdata);
584
585 if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
586 inst->codec_state = VENUS_DEC_STATE_DRAIN;
587 inst->drain_active = true;
588 }
589 } else if (cmd->cmd == V4L2_DEC_CMD_START &&
590 inst->codec_state == VENUS_DEC_STATE_STOPPED) {
591 dst_vq = v4l2_m2m_get_vq(inst->fh.m2m_ctx,
592 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
593 vb2_clear_last_buffer_dequeued(dst_vq);
594
595 inst->codec_state = VENUS_DEC_STATE_DECODING;
596 }
597
598 unlock:
599 mutex_unlock(&inst->lock);
600 return ret;
601 }
602
603 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
604 .vidioc_querycap = vdec_querycap,
605 .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
606 .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
607 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
608 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
609 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
610 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
611 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
612 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
613 .vidioc_g_selection = vdec_g_selection,
614 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
615 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
616 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
617 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
618 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
619 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
620 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
621 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
622 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
623 .vidioc_s_parm = vdec_s_parm,
624 .vidioc_enum_framesizes = vdec_enum_framesizes,
625 .vidioc_subscribe_event = vdec_subscribe_event,
626 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
627 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
628 .vidioc_decoder_cmd = vdec_decoder_cmd,
629 };
630
vdec_pm_get(struct venus_inst * inst)631 static int vdec_pm_get(struct venus_inst *inst)
632 {
633 struct venus_core *core = inst->core;
634 struct device *dev = core->dev_dec;
635 int ret;
636
637 mutex_lock(&core->pm_lock);
638 ret = pm_runtime_resume_and_get(dev);
639 mutex_unlock(&core->pm_lock);
640
641 return ret;
642 }
643
vdec_pm_put(struct venus_inst * inst,bool autosuspend)644 static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
645 {
646 struct venus_core *core = inst->core;
647 struct device *dev = core->dev_dec;
648 int ret;
649
650 mutex_lock(&core->pm_lock);
651
652 if (autosuspend)
653 ret = pm_runtime_put_autosuspend(dev);
654 else
655 ret = pm_runtime_put_sync(dev);
656
657 mutex_unlock(&core->pm_lock);
658
659 return ret < 0 ? ret : 0;
660 }
661
vdec_pm_get_put(struct venus_inst * inst)662 static int vdec_pm_get_put(struct venus_inst *inst)
663 {
664 struct venus_core *core = inst->core;
665 struct device *dev = core->dev_dec;
666 int ret = 0;
667
668 mutex_lock(&core->pm_lock);
669
670 if (pm_runtime_suspended(dev)) {
671 ret = pm_runtime_resume_and_get(dev);
672 if (ret < 0)
673 goto error;
674
675 ret = pm_runtime_put_autosuspend(dev);
676 }
677
678 error:
679 mutex_unlock(&core->pm_lock);
680
681 return ret < 0 ? ret : 0;
682 }
683
vdec_pm_touch(struct venus_inst * inst)684 static void vdec_pm_touch(struct venus_inst *inst)
685 {
686 pm_runtime_mark_last_busy(inst->core->dev_dec);
687 }
688
vdec_set_properties(struct venus_inst * inst)689 static int vdec_set_properties(struct venus_inst *inst)
690 {
691 struct vdec_controls *ctr = &inst->controls.dec;
692 struct hfi_enable en = { .enable = 1 };
693 u32 ptype, decode_order, conceal;
694 int ret;
695
696 if (ctr->post_loop_deb_mode) {
697 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
698 ret = hfi_session_set_property(inst, ptype, &en);
699 if (ret)
700 return ret;
701 }
702
703 if (ctr->display_delay_enable && ctr->display_delay == 0) {
704 ptype = HFI_PROPERTY_PARAM_VDEC_OUTPUT_ORDER;
705 decode_order = HFI_OUTPUT_ORDER_DECODE;
706 ret = hfi_session_set_property(inst, ptype, &decode_order);
707 if (ret)
708 return ret;
709 }
710
711 /* Enabling sufficient sequence change support for VP9 */
712 if (is_fw_rev_or_newer(inst->core, 5, 4, 51)) {
713 ptype = HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT;
714 ret = hfi_session_set_property(inst, ptype, &en);
715 if (ret)
716 return ret;
717 }
718
719 ptype = HFI_PROPERTY_PARAM_VDEC_CONCEAL_COLOR;
720 conceal = ctr->conceal_color & 0xffff;
721 conceal |= ((ctr->conceal_color >> 16) & 0xffff) << 10;
722 conceal |= ((ctr->conceal_color >> 32) & 0xffff) << 20;
723
724 ret = hfi_session_set_property(inst, ptype, &conceal);
725 if (ret)
726 return ret;
727
728 return 0;
729 }
730
vdec_set_work_route(struct venus_inst * inst)731 static int vdec_set_work_route(struct venus_inst *inst)
732 {
733 u32 ptype = HFI_PROPERTY_PARAM_WORK_ROUTE;
734 struct hfi_video_work_route wr;
735
736 if (!(IS_IRIS2(inst->core) || IS_IRIS2_1(inst->core)))
737 return 0;
738
739 wr.video_work_route = inst->core->res->num_vpp_pipes;
740
741 return hfi_session_set_property(inst, ptype, &wr);
742 }
743
744 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
745 #define is_10bit_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_10_BIT_BASE & \
746 HFI_COLOR_FORMAT_UBWC_BASE))
747
748
vdec_output_conf(struct venus_inst * inst)749 static int vdec_output_conf(struct venus_inst *inst)
750 {
751 struct venus_core *core = inst->core;
752 struct hfi_enable en = { .enable = 1 };
753 struct hfi_buffer_requirements bufreq;
754 u32 width = inst->width;
755 u32 height = inst->height;
756 u32 out_fmt, out2_fmt;
757 bool ubwc = false;
758 u32 ptype;
759 int ret;
760
761 ret = venus_helper_set_work_mode(inst);
762 if (ret)
763 return ret;
764
765 if (core->res->hfi_version == HFI_VERSION_1XX) {
766 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
767 ret = hfi_session_set_property(inst, ptype, &en);
768 if (ret)
769 return ret;
770 }
771
772 /* Force searching UBWC formats for bigger then HD resolutions */
773 if (width > 1920 && height > ALIGN(1080, 32))
774 ubwc = true;
775
776 /* For Venus v4/v6 UBWC format is mandatory */
777 if (IS_V4(core) || IS_V6(core))
778 ubwc = true;
779
780 ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
781 &out2_fmt, ubwc);
782 if (ret)
783 return ret;
784
785 inst->output_buf_size =
786 venus_helper_get_framesz_raw(out_fmt, width, height);
787 inst->output2_buf_size =
788 venus_helper_get_framesz_raw(out2_fmt, width, height);
789
790 if (is_ubwc_fmt(out_fmt)) {
791 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
792 inst->opb_fmt = out2_fmt;
793 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
794 inst->dpb_fmt = out_fmt;
795 } else if (is_ubwc_fmt(out2_fmt) || is_10bit_ubwc_fmt(out_fmt)) {
796 inst->opb_buftype = HFI_BUFFER_OUTPUT;
797 inst->opb_fmt = out_fmt;
798 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
799 inst->dpb_fmt = out2_fmt;
800 } else {
801 inst->opb_buftype = HFI_BUFFER_OUTPUT;
802 inst->opb_fmt = out_fmt;
803 inst->dpb_buftype = 0;
804 inst->dpb_fmt = 0;
805 }
806
807 ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
808 inst->opb_buftype);
809 if (ret)
810 return ret;
811
812 ret = venus_helper_set_format_constraints(inst);
813 if (ret)
814 return ret;
815
816 if (inst->dpb_fmt) {
817 ret = venus_helper_set_multistream(inst, false, true);
818 if (ret)
819 return ret;
820
821 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
822 inst->dpb_buftype);
823 if (ret)
824 return ret;
825
826 ret = venus_helper_set_output_resolution(inst, width, height,
827 HFI_BUFFER_OUTPUT2);
828 if (ret)
829 return ret;
830 }
831
832 if (IS_V3(core) || IS_V4(core) || IS_V6(core)) {
833 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
834 if (ret)
835 return ret;
836
837 if (bufreq.size > inst->output_buf_size)
838 return -EINVAL;
839
840 if (inst->dpb_fmt) {
841 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT2,
842 &bufreq);
843 if (ret)
844 return ret;
845
846 if (bufreq.size > inst->output2_buf_size)
847 return -EINVAL;
848 }
849
850 if (inst->output2_buf_size) {
851 ret = venus_helper_set_bufsize(inst,
852 inst->output2_buf_size,
853 HFI_BUFFER_OUTPUT2);
854 if (ret)
855 return ret;
856 }
857
858 if (inst->output_buf_size) {
859 ret = venus_helper_set_bufsize(inst,
860 inst->output_buf_size,
861 HFI_BUFFER_OUTPUT);
862 if (ret)
863 return ret;
864 }
865 }
866
867 ret = venus_helper_set_dyn_bufmode(inst);
868 if (ret)
869 return ret;
870
871 return 0;
872 }
873
vdec_session_init(struct venus_inst * inst)874 static int vdec_session_init(struct venus_inst *inst)
875 {
876 int ret;
877
878 ret = venus_helper_session_init(inst);
879 if (ret == -EALREADY)
880 return 0;
881 else if (ret)
882 return ret;
883
884 ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
885 frame_height_min(inst));
886 if (ret)
887 goto deinit;
888
889 return 0;
890 deinit:
891 hfi_session_deinit(inst);
892 return ret;
893 }
894
vdec_num_buffers(struct venus_inst * inst,unsigned int * in_num,unsigned int * out_num)895 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
896 unsigned int *out_num)
897 {
898 enum hfi_version ver = inst->core->res->hfi_version;
899 struct hfi_buffer_requirements bufreq;
900 int ret;
901
902 *in_num = *out_num = 0;
903
904 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
905 if (ret)
906 return ret;
907
908 *in_num = hfi_bufreq_get_count_min(&bufreq, ver);
909
910 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
911 if (ret)
912 return ret;
913
914 *out_num = hfi_bufreq_get_count_min(&bufreq, ver);
915
916 return 0;
917 }
918
vdec_queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])919 static int vdec_queue_setup(struct vb2_queue *q,
920 unsigned int *num_buffers, unsigned int *num_planes,
921 unsigned int sizes[], struct device *alloc_devs[])
922 {
923 struct venus_inst *inst = vb2_get_drv_priv(q);
924 struct venus_core *core = inst->core;
925 unsigned int in_num, out_num;
926 int ret = 0;
927
928 if (*num_planes) {
929 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
930
931 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
932 *num_planes != inst->fmt_out->num_planes)
933 return -EINVAL;
934
935 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
936 *num_planes != inst->fmt_cap->num_planes)
937 return -EINVAL;
938
939 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
940 sizes[0] < inst->input_buf_size)
941 return -EINVAL;
942
943 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
944 sizes[0] < output_buf_size)
945 return -EINVAL;
946
947 return 0;
948 }
949
950 if (test_bit(0, &core->sys_error)) {
951 if (inst->nonblock)
952 return -EAGAIN;
953
954 ret = wait_event_interruptible(core->sys_err_done,
955 !test_bit(0, &core->sys_error));
956 if (ret)
957 return ret;
958 }
959
960 ret = vdec_pm_get(inst);
961 if (ret)
962 return ret;
963
964 ret = vdec_session_init(inst);
965 if (ret)
966 goto put_power;
967
968 ret = vdec_num_buffers(inst, &in_num, &out_num);
969 if (ret)
970 goto put_power;
971
972 ret = vdec_pm_put(inst, false);
973 if (ret)
974 return ret;
975
976 switch (q->type) {
977 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
978 *num_planes = inst->fmt_out->num_planes;
979 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
980 inst->out_width,
981 inst->out_height);
982 sizes[0] = max(sizes[0], inst->input_buf_size);
983 inst->input_buf_size = sizes[0];
984 *num_buffers = max(*num_buffers, in_num);
985 inst->num_input_bufs = *num_buffers;
986 inst->num_output_bufs = out_num;
987 break;
988 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
989 *num_planes = inst->fmt_cap->num_planes;
990 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
991 inst->width,
992 inst->height);
993 inst->output_buf_size = sizes[0];
994 *num_buffers = max(*num_buffers, out_num);
995 inst->num_output_bufs = *num_buffers;
996
997 mutex_lock(&inst->lock);
998 if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
999 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1000 mutex_unlock(&inst->lock);
1001 break;
1002 default:
1003 ret = -EINVAL;
1004 break;
1005 }
1006
1007 return ret;
1008
1009 put_power:
1010 vdec_pm_put(inst, false);
1011 return ret;
1012 }
1013
vdec_verify_conf(struct venus_inst * inst)1014 static int vdec_verify_conf(struct venus_inst *inst)
1015 {
1016 enum hfi_version ver = inst->core->res->hfi_version;
1017 struct hfi_buffer_requirements bufreq;
1018 int ret;
1019
1020 if (!inst->num_input_bufs || !inst->num_output_bufs)
1021 return -EINVAL;
1022
1023 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1024 if (ret)
1025 return ret;
1026
1027 if (inst->num_output_bufs < bufreq.count_actual ||
1028 inst->num_output_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1029 return -EINVAL;
1030
1031 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1032 if (ret)
1033 return ret;
1034
1035 if (inst->num_input_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1036 return -EINVAL;
1037
1038 return 0;
1039 }
1040
vdec_start_capture(struct venus_inst * inst)1041 static int vdec_start_capture(struct venus_inst *inst)
1042 {
1043 int ret;
1044
1045 if (!inst->streamon_out)
1046 return 0;
1047
1048 if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
1049 if (inst->reconfig)
1050 goto reconfigure;
1051
1052 venus_helper_queue_dpb_bufs(inst);
1053 venus_helper_process_initial_cap_bufs(inst);
1054 inst->streamon_cap = 1;
1055 return 0;
1056 }
1057
1058 if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
1059 return 0;
1060
1061 reconfigure:
1062 ret = vdec_output_conf(inst);
1063 if (ret)
1064 return ret;
1065
1066 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1067 VB2_MAX_FRAME, VB2_MAX_FRAME);
1068 if (ret)
1069 return ret;
1070
1071 ret = venus_helper_intbufs_realloc(inst);
1072 if (ret)
1073 goto err;
1074
1075 venus_pm_load_scale(inst);
1076
1077 inst->next_buf_last = false;
1078
1079 ret = venus_helper_alloc_dpb_bufs(inst);
1080 if (ret)
1081 goto err;
1082
1083 ret = hfi_session_continue(inst);
1084 if (ret)
1085 goto free_dpb_bufs;
1086
1087 ret = venus_helper_queue_dpb_bufs(inst);
1088 if (ret)
1089 goto free_dpb_bufs;
1090
1091 ret = venus_helper_process_initial_cap_bufs(inst);
1092 if (ret)
1093 goto free_dpb_bufs;
1094
1095 inst->codec_state = VENUS_DEC_STATE_DECODING;
1096
1097 if (inst->drain_active)
1098 inst->codec_state = VENUS_DEC_STATE_DRAIN;
1099
1100 inst->streamon_cap = 1;
1101 inst->sequence_cap = 0;
1102 inst->reconfig = false;
1103 inst->drain_active = false;
1104
1105 return 0;
1106
1107 free_dpb_bufs:
1108 venus_helper_free_dpb_bufs(inst);
1109 err:
1110 return ret;
1111 }
1112
vdec_start_output(struct venus_inst * inst)1113 static int vdec_start_output(struct venus_inst *inst)
1114 {
1115 int ret;
1116
1117 if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
1118 ret = venus_helper_process_initial_out_bufs(inst);
1119 if (ret)
1120 return ret;
1121
1122 if (inst->next_buf_last) {
1123 inst->codec_state = VENUS_DEC_STATE_DRC;
1124 } else {
1125 inst->codec_state = VENUS_DEC_STATE_DECODING;
1126
1127 if (inst->streamon_cap) {
1128 ret = venus_helper_queue_dpb_bufs(inst);
1129 if (ret)
1130 return ret;
1131 }
1132 }
1133 goto done;
1134 }
1135
1136 if (inst->codec_state == VENUS_DEC_STATE_INIT ||
1137 inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
1138 ret = venus_helper_process_initial_out_bufs(inst);
1139 goto done;
1140 }
1141
1142 if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
1143 return -EINVAL;
1144
1145 venus_helper_init_instance(inst);
1146 inst->sequence_out = 0;
1147 inst->reconfig = false;
1148 inst->next_buf_last = false;
1149
1150 ret = vdec_set_properties(inst);
1151 if (ret)
1152 return ret;
1153
1154 ret = vdec_set_work_route(inst);
1155 if (ret)
1156 return ret;
1157
1158 ret = vdec_output_conf(inst);
1159 if (ret)
1160 return ret;
1161
1162 ret = vdec_verify_conf(inst);
1163 if (ret)
1164 return ret;
1165
1166 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1167 VB2_MAX_FRAME, VB2_MAX_FRAME);
1168 if (ret)
1169 return ret;
1170
1171 ret = venus_helper_vb2_start_streaming(inst);
1172 if (ret)
1173 return ret;
1174
1175 ret = venus_helper_process_initial_out_bufs(inst);
1176 if (ret)
1177 return ret;
1178
1179 inst->codec_state = VENUS_DEC_STATE_INIT;
1180
1181 done:
1182 inst->streamon_out = 1;
1183 return ret;
1184 }
1185
vdec_start_streaming(struct vb2_queue * q,unsigned int count)1186 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1187 {
1188 struct venus_inst *inst = vb2_get_drv_priv(q);
1189 int ret;
1190
1191 mutex_lock(&inst->lock);
1192
1193 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1194 ret = vdec_start_capture(inst);
1195 } else {
1196 ret = vdec_pm_get(inst);
1197 if (ret)
1198 goto error;
1199
1200 ret = venus_pm_acquire_core(inst);
1201 if (ret)
1202 goto put_power;
1203
1204 ret = vdec_pm_put(inst, true);
1205 if (ret)
1206 goto error;
1207
1208 ret = vdec_start_output(inst);
1209 }
1210
1211 if (ret)
1212 goto error;
1213
1214 mutex_unlock(&inst->lock);
1215 return 0;
1216
1217 put_power:
1218 vdec_pm_put(inst, false);
1219 error:
1220 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1221 mutex_unlock(&inst->lock);
1222 return ret;
1223 }
1224
vdec_cancel_dst_buffers(struct venus_inst * inst)1225 static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1226 {
1227 struct vb2_v4l2_buffer *buf;
1228
1229 while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1230 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1231 }
1232
vdec_stop_capture(struct venus_inst * inst)1233 static int vdec_stop_capture(struct venus_inst *inst)
1234 {
1235 int ret = 0;
1236
1237 switch (inst->codec_state) {
1238 case VENUS_DEC_STATE_DECODING:
1239 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1240 fallthrough;
1241 case VENUS_DEC_STATE_DRAIN:
1242 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1243 inst->drain_active = false;
1244 fallthrough;
1245 case VENUS_DEC_STATE_SEEK:
1246 vdec_cancel_dst_buffers(inst);
1247 break;
1248 case VENUS_DEC_STATE_DRC:
1249 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
1250 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1251 venus_helper_free_dpb_bufs(inst);
1252 break;
1253 default:
1254 break;
1255 }
1256
1257 return ret;
1258 }
1259
vdec_stop_output(struct venus_inst * inst)1260 static int vdec_stop_output(struct venus_inst *inst)
1261 {
1262 int ret = 0;
1263
1264 switch (inst->codec_state) {
1265 case VENUS_DEC_STATE_DECODING:
1266 case VENUS_DEC_STATE_DRAIN:
1267 case VENUS_DEC_STATE_STOPPED:
1268 case VENUS_DEC_STATE_DRC:
1269 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1270 inst->codec_state = VENUS_DEC_STATE_SEEK;
1271 break;
1272 case VENUS_DEC_STATE_INIT:
1273 case VENUS_DEC_STATE_CAPTURE_SETUP:
1274 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1275 break;
1276 default:
1277 break;
1278 }
1279
1280 return ret;
1281 }
1282
vdec_stop_streaming(struct vb2_queue * q)1283 static void vdec_stop_streaming(struct vb2_queue *q)
1284 {
1285 struct venus_inst *inst = vb2_get_drv_priv(q);
1286 int ret = -EINVAL;
1287
1288 vdec_pm_get_put(inst);
1289
1290 mutex_lock(&inst->lock);
1291
1292 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1293 ret = vdec_stop_capture(inst);
1294 else
1295 ret = vdec_stop_output(inst);
1296
1297 venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1298
1299 inst->session_error = 0;
1300
1301 if (ret)
1302 goto unlock;
1303
1304 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1305 inst->streamon_out = 0;
1306 else
1307 inst->streamon_cap = 0;
1308
1309 unlock:
1310 mutex_unlock(&inst->lock);
1311 }
1312
vdec_session_release(struct venus_inst * inst)1313 static void vdec_session_release(struct venus_inst *inst)
1314 {
1315 struct venus_core *core = inst->core;
1316 int ret, abort = 0;
1317
1318 vdec_pm_get(inst);
1319
1320 mutex_lock(&inst->lock);
1321 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1322
1323 ret = hfi_session_stop(inst);
1324 abort = (ret && ret != -EINVAL) ? 1 : 0;
1325 ret = hfi_session_unload_res(inst);
1326 abort = (ret && ret != -EINVAL) ? 1 : 0;
1327 ret = venus_helper_unregister_bufs(inst);
1328 abort = (ret && ret != -EINVAL) ? 1 : 0;
1329 ret = venus_helper_intbufs_free(inst);
1330 abort = (ret && ret != -EINVAL) ? 1 : 0;
1331 ret = hfi_session_deinit(inst);
1332 abort = (ret && ret != -EINVAL) ? 1 : 0;
1333
1334 if (inst->session_error || test_bit(0, &core->sys_error))
1335 abort = 1;
1336
1337 if (abort)
1338 hfi_session_abort(inst);
1339
1340 venus_helper_free_dpb_bufs(inst);
1341 venus_pm_load_scale(inst);
1342 INIT_LIST_HEAD(&inst->registeredbufs);
1343 mutex_unlock(&inst->lock);
1344
1345 venus_pm_release_core(inst);
1346 vdec_pm_put(inst, false);
1347 }
1348
vdec_buf_init(struct vb2_buffer * vb)1349 static int vdec_buf_init(struct vb2_buffer *vb)
1350 {
1351 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1352
1353 inst->buf_count++;
1354
1355 return venus_helper_vb2_buf_init(vb);
1356 }
1357
vdec_buf_cleanup(struct vb2_buffer * vb)1358 static void vdec_buf_cleanup(struct vb2_buffer *vb)
1359 {
1360 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1361 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1362 struct venus_buffer *buf = to_venus_buffer(vbuf);
1363
1364 mutex_lock(&inst->lock);
1365 if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1366 if (!list_empty(&inst->registeredbufs))
1367 list_del_init(&buf->reg_list);
1368 mutex_unlock(&inst->lock);
1369
1370 inst->buf_count--;
1371 if (!inst->buf_count)
1372 vdec_session_release(inst);
1373 }
1374
vdec_vb2_buf_queue(struct vb2_buffer * vb)1375 static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1376 {
1377 struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1378 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1379 static const struct v4l2_event eos = { .type = V4L2_EVENT_EOS };
1380
1381 vdec_pm_get_put(inst);
1382
1383 mutex_lock(&inst->lock);
1384
1385 if (inst->next_buf_last && V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
1386 inst->codec_state == VENUS_DEC_STATE_DRC) {
1387 vbuf->flags |= V4L2_BUF_FLAG_LAST;
1388 vbuf->sequence = inst->sequence_cap++;
1389 vbuf->field = V4L2_FIELD_NONE;
1390 vb2_set_plane_payload(vb, 0, 0);
1391 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1392 v4l2_event_queue_fh(&inst->fh, &eos);
1393 inst->next_buf_last = false;
1394 mutex_unlock(&inst->lock);
1395 return;
1396 }
1397
1398 venus_helper_vb2_buf_queue(vb);
1399 mutex_unlock(&inst->lock);
1400 }
1401
1402 static const struct vb2_ops vdec_vb2_ops = {
1403 .queue_setup = vdec_queue_setup,
1404 .buf_init = vdec_buf_init,
1405 .buf_cleanup = vdec_buf_cleanup,
1406 .buf_prepare = venus_helper_vb2_buf_prepare,
1407 .start_streaming = vdec_start_streaming,
1408 .stop_streaming = vdec_stop_streaming,
1409 .buf_queue = vdec_vb2_buf_queue,
1410 };
1411
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)1412 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1413 u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1414 u32 hfi_flags, u64 timestamp_us)
1415 {
1416 enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1417 struct vb2_v4l2_buffer *vbuf;
1418 struct vb2_buffer *vb;
1419 unsigned int type;
1420
1421 vdec_pm_touch(inst);
1422
1423 if (buf_type == HFI_BUFFER_INPUT)
1424 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1425 else
1426 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1427
1428 vbuf = venus_helper_find_buf(inst, type, tag);
1429 if (!vbuf) {
1430 venus_helper_change_dpb_owner(inst, vbuf, type, buf_type, tag);
1431 return;
1432 }
1433
1434 vbuf->flags = flags;
1435 vbuf->field = V4L2_FIELD_NONE;
1436 vb = &vbuf->vb2_buf;
1437
1438 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1439 vb2_set_plane_payload(vb, 0, bytesused);
1440 vb->planes[0].data_offset = data_offset;
1441 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1442 vbuf->sequence = inst->sequence_cap++;
1443
1444 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1445 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1446
1447 v4l2_event_queue_fh(&inst->fh, &ev);
1448
1449 if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
1450 inst->drain_active = false;
1451 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1452 }
1453 } else {
1454 if (!bytesused)
1455 state = VB2_BUF_STATE_ERROR;
1456 }
1457 } else {
1458 vbuf->sequence = inst->sequence_out++;
1459 }
1460
1461 venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1462
1463 if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1464 venus_helper_acquire_buf_ref(vbuf);
1465
1466 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1467 state = VB2_BUF_STATE_ERROR;
1468
1469 if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1470 state = VB2_BUF_STATE_ERROR;
1471 vb2_set_plane_payload(vb, 0, 0);
1472 vb->timestamp = 0;
1473 }
1474
1475 v4l2_m2m_buf_done(vbuf, state);
1476 }
1477
vdec_event_change(struct venus_inst * inst,struct hfi_event_data * ev_data,bool sufficient)1478 static void vdec_event_change(struct venus_inst *inst,
1479 struct hfi_event_data *ev_data, bool sufficient)
1480 {
1481 static const struct v4l2_event ev = {
1482 .type = V4L2_EVENT_SOURCE_CHANGE,
1483 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1484 struct device *dev = inst->core->dev_dec;
1485 struct v4l2_format format = {};
1486
1487 mutex_lock(&inst->lock);
1488
1489 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1490 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1491 format.fmt.pix_mp.width = ev_data->width;
1492 format.fmt.pix_mp.height = ev_data->height;
1493
1494 vdec_try_fmt_common(inst, &format);
1495
1496 inst->width = format.fmt.pix_mp.width;
1497 inst->height = format.fmt.pix_mp.height;
1498 /*
1499 * Some versions of the firmware do not report crop information for
1500 * all codecs. For these cases, set the crop to the coded resolution.
1501 */
1502 if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
1503 inst->crop.left = ev_data->input_crop.left;
1504 inst->crop.top = ev_data->input_crop.top;
1505 inst->crop.width = ev_data->input_crop.width;
1506 inst->crop.height = ev_data->input_crop.height;
1507 } else {
1508 inst->crop.left = 0;
1509 inst->crop.top = 0;
1510 inst->crop.width = ev_data->width;
1511 inst->crop.height = ev_data->height;
1512 }
1513
1514 inst->fw_min_cnt = ev_data->buf_count;
1515 /* overwriting this to 11 for vp9 due to fw bug */
1516 if (inst->hfi_codec == HFI_VIDEO_CODEC_VP9)
1517 inst->fw_min_cnt = 11;
1518
1519 inst->out_width = ev_data->width;
1520 inst->out_height = ev_data->height;
1521
1522 if (inst->bit_depth != ev_data->bit_depth) {
1523 inst->bit_depth = ev_data->bit_depth;
1524 if (inst->bit_depth == VIDC_BITDEPTH_10)
1525 inst->fmt_cap = &vdec_formats[VENUS_FMT_P010];
1526 else
1527 inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1528 }
1529
1530 if (inst->pic_struct != ev_data->pic_struct)
1531 inst->pic_struct = ev_data->pic_struct;
1532
1533 dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1534 sufficient ? "" : "not", ev_data->width, ev_data->height);
1535
1536 switch (inst->codec_state) {
1537 case VENUS_DEC_STATE_INIT:
1538 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1539 break;
1540 case VENUS_DEC_STATE_DECODING:
1541 case VENUS_DEC_STATE_DRAIN:
1542 inst->codec_state = VENUS_DEC_STATE_DRC;
1543 break;
1544 default:
1545 break;
1546 }
1547
1548 /*
1549 * The assumption is that the firmware have to return the last buffer
1550 * before this event is received in the v4l2 driver. Also the firmware
1551 * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1552 */
1553
1554 if (inst->codec_state == VENUS_DEC_STATE_DRC) {
1555 int ret;
1556
1557 inst->next_buf_last = true;
1558
1559 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1560 if (ret)
1561 dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1562 }
1563
1564 inst->next_buf_last = true;
1565 inst->reconfig = true;
1566 v4l2_event_queue_fh(&inst->fh, &ev);
1567 wake_up(&inst->reconf_wait);
1568
1569 mutex_unlock(&inst->lock);
1570 }
1571
vdec_event_notify(struct venus_inst * inst,u32 event,struct hfi_event_data * data)1572 static void vdec_event_notify(struct venus_inst *inst, u32 event,
1573 struct hfi_event_data *data)
1574 {
1575 struct venus_core *core = inst->core;
1576 struct device *dev = core->dev_dec;
1577
1578 vdec_pm_touch(inst);
1579
1580 switch (event) {
1581 case EVT_SESSION_ERROR:
1582 inst->session_error = true;
1583 venus_helper_vb2_queue_error(inst);
1584 dev_err(dev, "dec: event session error %x\n", inst->error);
1585 break;
1586 case EVT_SYS_EVENT_CHANGE:
1587 switch (data->event_type) {
1588 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1589 vdec_event_change(inst, data, true);
1590 break;
1591 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1592 vdec_event_change(inst, data, false);
1593 break;
1594 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1595 venus_helper_release_buf_ref(inst, data->tag);
1596 break;
1597 default:
1598 break;
1599 }
1600 break;
1601 default:
1602 break;
1603 }
1604 }
1605
vdec_flush_done(struct venus_inst * inst)1606 static void vdec_flush_done(struct venus_inst *inst)
1607 {
1608 dev_dbg(inst->core->dev_dec, VDBGH "flush done\n");
1609 }
1610
1611 static const struct hfi_inst_ops vdec_hfi_ops = {
1612 .buf_done = vdec_buf_done,
1613 .event_notify = vdec_event_notify,
1614 .flush_done = vdec_flush_done,
1615 };
1616
vdec_inst_init(struct venus_inst * inst)1617 static void vdec_inst_init(struct venus_inst *inst)
1618 {
1619 inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1620 inst->fmt_out = &vdec_formats[VENUS_FMT_H264];
1621 inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1622 inst->width = frame_width_min(inst);
1623 inst->height = ALIGN(frame_height_min(inst), 32);
1624 inst->crop.left = 0;
1625 inst->crop.top = 0;
1626 inst->crop.width = inst->width;
1627 inst->crop.height = inst->height;
1628 inst->fw_min_cnt = 8;
1629 inst->out_width = frame_width_min(inst);
1630 inst->out_height = frame_height_min(inst);
1631 inst->fps = 30;
1632 inst->timeperframe.numerator = 1;
1633 inst->timeperframe.denominator = 30;
1634 inst->opb_buftype = HFI_BUFFER_OUTPUT;
1635 }
1636
vdec_m2m_device_run(void * priv)1637 static void vdec_m2m_device_run(void *priv)
1638 {
1639 }
1640
1641 static const struct v4l2_m2m_ops vdec_m2m_ops = {
1642 .device_run = vdec_m2m_device_run,
1643 .job_abort = venus_helper_m2m_job_abort,
1644 };
1645
m2m_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)1646 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1647 struct vb2_queue *dst_vq)
1648 {
1649 struct venus_inst *inst = priv;
1650 int ret;
1651
1652 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1653 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1654 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1655 src_vq->ops = &vdec_vb2_ops;
1656 src_vq->mem_ops = &vb2_dma_contig_memops;
1657 src_vq->drv_priv = inst;
1658 src_vq->buf_struct_size = sizeof(struct venus_buffer);
1659 src_vq->allow_zero_bytesused = 1;
1660 src_vq->min_queued_buffers = 0;
1661 src_vq->dev = inst->core->dev;
1662 src_vq->lock = &inst->ctx_q_lock;
1663 ret = vb2_queue_init(src_vq);
1664 if (ret)
1665 return ret;
1666
1667 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1668 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1669 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1670 dst_vq->ops = &vdec_vb2_ops;
1671 dst_vq->mem_ops = &vb2_dma_contig_memops;
1672 dst_vq->drv_priv = inst;
1673 dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1674 dst_vq->allow_zero_bytesused = 1;
1675 dst_vq->min_queued_buffers = 0;
1676 dst_vq->dev = inst->core->dev;
1677 dst_vq->lock = &inst->ctx_q_lock;
1678 return vb2_queue_init(dst_vq);
1679 }
1680
vdec_open(struct file * file)1681 static int vdec_open(struct file *file)
1682 {
1683 struct venus_core *core = video_drvdata(file);
1684 struct venus_inst *inst;
1685 int ret;
1686
1687 inst = kzalloc_obj(*inst);
1688 if (!inst)
1689 return -ENOMEM;
1690
1691 INIT_LIST_HEAD(&inst->dpbbufs);
1692 INIT_LIST_HEAD(&inst->registeredbufs);
1693 INIT_LIST_HEAD(&inst->internalbufs);
1694 INIT_LIST_HEAD(&inst->list);
1695 mutex_init(&inst->lock);
1696 mutex_init(&inst->ctx_q_lock);
1697
1698 inst->core = core;
1699 inst->session_type = VIDC_SESSION_TYPE_DEC;
1700 inst->num_output_bufs = 1;
1701 inst->codec_state = VENUS_DEC_STATE_DEINIT;
1702 inst->buf_count = 0;
1703 inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1704 inst->core_acquired = false;
1705 inst->bit_depth = VIDC_BITDEPTH_8;
1706 inst->pic_struct = HFI_INTERLACE_FRAME_PROGRESSIVE;
1707 init_waitqueue_head(&inst->reconf_wait);
1708 inst->nonblock = file->f_flags & O_NONBLOCK;
1709
1710 venus_helper_init_instance(inst);
1711
1712 ret = vdec_ctrl_init(inst);
1713 if (ret)
1714 goto err_free;
1715
1716 vdec_inst_init(inst);
1717
1718 ida_init(&inst->dpb_ids);
1719
1720 /*
1721 * create m2m device for every instance, the m2m context scheduling
1722 * is made by firmware side so we do not need to care about.
1723 */
1724 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1725 if (IS_ERR(inst->m2m_dev)) {
1726 ret = PTR_ERR(inst->m2m_dev);
1727 goto err_ctrl_deinit;
1728 }
1729
1730 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1731 if (IS_ERR(inst->m2m_ctx)) {
1732 ret = PTR_ERR(inst->m2m_ctx);
1733 goto err_m2m_dev_release;
1734 }
1735
1736 ret = hfi_session_create(inst, &vdec_hfi_ops);
1737 if (ret)
1738 goto err_m2m_ctx_release;
1739
1740 v4l2_fh_init(&inst->fh, core->vdev_dec);
1741
1742 inst->fh.ctrl_handler = &inst->ctrl_handler;
1743 v4l2_fh_add(&inst->fh, file);
1744 inst->fh.m2m_ctx = inst->m2m_ctx;
1745
1746 return 0;
1747
1748 err_m2m_ctx_release:
1749 v4l2_m2m_ctx_release(inst->m2m_ctx);
1750 err_m2m_dev_release:
1751 v4l2_m2m_release(inst->m2m_dev);
1752 err_ctrl_deinit:
1753 v4l2_ctrl_handler_free(&inst->ctrl_handler);
1754 err_free:
1755 kfree(inst);
1756 return ret;
1757 }
1758
vdec_close(struct file * file)1759 static int vdec_close(struct file *file)
1760 {
1761 struct venus_inst *inst = to_inst(file);
1762
1763 vdec_pm_get(inst);
1764 cancel_work_sync(&inst->delayed_process_work);
1765 venus_close_common(inst, file);
1766 ida_destroy(&inst->dpb_ids);
1767 vdec_pm_put(inst, false);
1768
1769 kfree(inst);
1770 return 0;
1771 }
1772
1773 static const struct v4l2_file_operations vdec_fops = {
1774 .owner = THIS_MODULE,
1775 .open = vdec_open,
1776 .release = vdec_close,
1777 .unlocked_ioctl = video_ioctl2,
1778 .poll = v4l2_m2m_fop_poll,
1779 .mmap = v4l2_m2m_fop_mmap,
1780 };
1781
vdec_probe(struct platform_device * pdev)1782 static int vdec_probe(struct platform_device *pdev)
1783 {
1784 struct device *dev = &pdev->dev;
1785 struct video_device *vdev;
1786 struct venus_core *core;
1787 int ret;
1788
1789 core = dev_get_drvdata(dev->parent);
1790 if (!core)
1791 return -EINVAL;
1792
1793 platform_set_drvdata(pdev, core);
1794
1795 if (core->pm_ops->vdec_get) {
1796 ret = core->pm_ops->vdec_get(dev);
1797 if (ret)
1798 return ret;
1799 }
1800
1801 vdev = video_device_alloc();
1802 if (!vdev)
1803 return -ENOMEM;
1804
1805 strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1806 vdev->release = video_device_release;
1807 vdev->fops = &vdec_fops;
1808 vdev->ioctl_ops = &vdec_ioctl_ops;
1809 vdev->vfl_dir = VFL_DIR_M2M;
1810 vdev->v4l2_dev = &core->v4l2_dev;
1811 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1812
1813 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1814 if (ret)
1815 goto err_vdev_release;
1816
1817 core->vdev_dec = vdev;
1818 core->dev_dec = dev;
1819
1820 video_set_drvdata(vdev, core);
1821 pm_runtime_set_autosuspend_delay(dev, 2000);
1822 pm_runtime_use_autosuspend(dev);
1823 pm_runtime_enable(dev);
1824
1825 return 0;
1826
1827 err_vdev_release:
1828 video_device_release(vdev);
1829 return ret;
1830 }
1831
vdec_remove(struct platform_device * pdev)1832 static void vdec_remove(struct platform_device *pdev)
1833 {
1834 struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1835
1836 video_unregister_device(core->vdev_dec);
1837 pm_runtime_disable(core->dev_dec);
1838
1839 if (core->pm_ops->vdec_put)
1840 core->pm_ops->vdec_put(core->dev_dec);
1841 }
1842
vdec_runtime_suspend(struct device * dev)1843 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1844 {
1845 struct venus_core *core = dev_get_drvdata(dev);
1846 const struct venus_pm_ops *pm_ops = core->pm_ops;
1847 int ret = 0;
1848
1849 if (pm_ops->vdec_power)
1850 ret = pm_ops->vdec_power(dev, POWER_OFF);
1851
1852 return ret;
1853 }
1854
vdec_runtime_resume(struct device * dev)1855 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1856 {
1857 struct venus_core *core = dev_get_drvdata(dev);
1858 const struct venus_pm_ops *pm_ops = core->pm_ops;
1859 int ret = 0;
1860
1861 if (pm_ops->vdec_power)
1862 ret = pm_ops->vdec_power(dev, POWER_ON);
1863
1864 return ret;
1865 }
1866
1867 static const struct dev_pm_ops vdec_pm_ops = {
1868 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1869 pm_runtime_force_resume)
1870 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1871 };
1872
1873 static const struct of_device_id vdec_dt_match[] = {
1874 { .compatible = "venus-decoder" },
1875 { }
1876 };
1877 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1878
1879 static struct platform_driver qcom_venus_dec_driver = {
1880 .probe = vdec_probe,
1881 .remove = vdec_remove,
1882 .driver = {
1883 .name = "qcom-venus-decoder",
1884 .of_match_table = vdec_dt_match,
1885 .pm = &vdec_pm_ops,
1886 },
1887 };
1888 module_platform_driver(qcom_venus_dec_driver);
1889
1890 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1891 MODULE_LICENSE("GPL v2");
1892