1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved. 4 * Copyright (C) 2017 Linaro Ltd. 5 */ 6 #include <linux/clk.h> 7 #include <linux/module.h> 8 #include <linux/mod_devicetable.h> 9 #include <linux/platform_device.h> 10 #include <linux/pm_runtime.h> 11 #include <linux/slab.h> 12 #include <media/v4l2-ioctl.h> 13 #include <media/v4l2-event.h> 14 #include <media/v4l2-ctrls.h> 15 #include <media/v4l2-mem2mem.h> 16 #include <media/videobuf2-dma-sg.h> 17 18 #include "hfi_venus_io.h" 19 #include "hfi_parser.h" 20 #include "core.h" 21 #include "helpers.h" 22 #include "vdec.h" 23 24 /* 25 * Three resons to keep MPLANE formats (despite that the number of planes 26 * currently is one): 27 * - the MPLANE formats allow only one plane to be used 28 * - the downstream driver use MPLANE formats too 29 * - future firmware versions could add support for >1 planes 30 */ 31 static const struct venus_format vdec_formats[] = { 32 { 33 .pixfmt = V4L2_PIX_FMT_NV12, 34 .num_planes = 1, 35 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, 36 }, { 37 .pixfmt = V4L2_PIX_FMT_MPEG4, 38 .num_planes = 1, 39 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 40 }, { 41 .pixfmt = V4L2_PIX_FMT_MPEG2, 42 .num_planes = 1, 43 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 44 }, { 45 .pixfmt = V4L2_PIX_FMT_H263, 46 .num_planes = 1, 47 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 48 }, { 49 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G, 50 .num_planes = 1, 51 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 52 }, { 53 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L, 54 .num_planes = 1, 55 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 56 }, { 57 .pixfmt = V4L2_PIX_FMT_H264, 58 .num_planes = 1, 59 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 60 }, { 61 .pixfmt = V4L2_PIX_FMT_VP8, 62 .num_planes = 1, 63 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 64 }, { 65 .pixfmt = V4L2_PIX_FMT_VP9, 66 .num_planes = 1, 67 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 68 }, { 69 .pixfmt = V4L2_PIX_FMT_XVID, 70 .num_planes = 1, 71 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 72 }, { 73 .pixfmt = V4L2_PIX_FMT_HEVC, 74 .num_planes = 1, 75 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 76 }, 77 }; 78 79 static const struct venus_format * 80 find_format(struct venus_inst *inst, u32 pixfmt, u32 type) 81 { 82 const struct venus_format *fmt = vdec_formats; 83 unsigned int size = ARRAY_SIZE(vdec_formats); 84 unsigned int i; 85 86 for (i = 0; i < size; i++) { 87 if (fmt[i].pixfmt == pixfmt) 88 break; 89 } 90 91 if (i == size || fmt[i].type != type) 92 return NULL; 93 94 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 95 !venus_helper_check_codec(inst, fmt[i].pixfmt)) 96 return NULL; 97 98 return &fmt[i]; 99 } 100 101 static const struct venus_format * 102 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type) 103 { 104 const struct venus_format *fmt = vdec_formats; 105 unsigned int size = ARRAY_SIZE(vdec_formats); 106 unsigned int i, k = 0; 107 108 if (index > size) 109 return NULL; 110 111 for (i = 0; i < size; i++) { 112 bool valid; 113 114 if (fmt[i].type != type) 115 continue; 116 valid = type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE || 117 venus_helper_check_codec(inst, fmt[i].pixfmt); 118 if (k == index && valid) 119 break; 120 if (valid) 121 k++; 122 } 123 124 if (i == size) 125 return NULL; 126 127 return &fmt[i]; 128 } 129 130 static const struct venus_format * 131 vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f) 132 { 133 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; 134 struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt; 135 const struct venus_format *fmt; 136 137 memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved)); 138 memset(pixmp->reserved, 0, sizeof(pixmp->reserved)); 139 140 fmt = find_format(inst, pixmp->pixelformat, f->type); 141 if (!fmt) { 142 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 143 pixmp->pixelformat = V4L2_PIX_FMT_NV12; 144 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 145 pixmp->pixelformat = V4L2_PIX_FMT_H264; 146 else 147 return NULL; 148 fmt = find_format(inst, pixmp->pixelformat, f->type); 149 } 150 151 pixmp->width = clamp(pixmp->width, frame_width_min(inst), 152 frame_width_max(inst)); 153 pixmp->height = clamp(pixmp->height, frame_height_min(inst), 154 frame_height_max(inst)); 155 156 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 157 pixmp->height = ALIGN(pixmp->height, 32); 158 159 if (pixmp->field == V4L2_FIELD_ANY) 160 pixmp->field = V4L2_FIELD_NONE; 161 pixmp->num_planes = fmt->num_planes; 162 pixmp->flags = 0; 163 164 pfmt[0].sizeimage = venus_helper_get_framesz(pixmp->pixelformat, 165 pixmp->width, 166 pixmp->height); 167 168 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 169 pfmt[0].bytesperline = ALIGN(pixmp->width, 128); 170 else 171 pfmt[0].bytesperline = 0; 172 173 return fmt; 174 } 175 176 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f) 177 { 178 struct venus_inst *inst = to_inst(file); 179 180 vdec_try_fmt_common(inst, f); 181 182 return 0; 183 } 184 185 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f) 186 { 187 struct venus_inst *inst = to_inst(file); 188 const struct venus_format *fmt = NULL; 189 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; 190 191 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 192 fmt = inst->fmt_cap; 193 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 194 fmt = inst->fmt_out; 195 196 if (inst->reconfig) { 197 struct v4l2_format format = {}; 198 199 inst->out_width = inst->reconfig_width; 200 inst->out_height = inst->reconfig_height; 201 inst->reconfig = false; 202 203 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 204 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt; 205 format.fmt.pix_mp.width = inst->out_width; 206 format.fmt.pix_mp.height = inst->out_height; 207 208 vdec_try_fmt_common(inst, &format); 209 210 inst->width = format.fmt.pix_mp.width; 211 inst->height = format.fmt.pix_mp.height; 212 } 213 214 pixmp->pixelformat = fmt->pixfmt; 215 216 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 217 pixmp->width = inst->width; 218 pixmp->height = inst->height; 219 pixmp->colorspace = inst->colorspace; 220 pixmp->ycbcr_enc = inst->ycbcr_enc; 221 pixmp->quantization = inst->quantization; 222 pixmp->xfer_func = inst->xfer_func; 223 } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { 224 pixmp->width = inst->out_width; 225 pixmp->height = inst->out_height; 226 } 227 228 vdec_try_fmt_common(inst, f); 229 230 return 0; 231 } 232 233 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f) 234 { 235 struct venus_inst *inst = to_inst(file); 236 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; 237 struct v4l2_pix_format_mplane orig_pixmp; 238 const struct venus_format *fmt; 239 struct v4l2_format format; 240 u32 pixfmt_out = 0, pixfmt_cap = 0; 241 242 orig_pixmp = *pixmp; 243 244 fmt = vdec_try_fmt_common(inst, f); 245 246 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { 247 pixfmt_out = pixmp->pixelformat; 248 pixfmt_cap = inst->fmt_cap->pixfmt; 249 } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 250 pixfmt_cap = pixmp->pixelformat; 251 pixfmt_out = inst->fmt_out->pixfmt; 252 } 253 254 memset(&format, 0, sizeof(format)); 255 256 format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 257 format.fmt.pix_mp.pixelformat = pixfmt_out; 258 format.fmt.pix_mp.width = orig_pixmp.width; 259 format.fmt.pix_mp.height = orig_pixmp.height; 260 vdec_try_fmt_common(inst, &format); 261 262 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { 263 inst->out_width = format.fmt.pix_mp.width; 264 inst->out_height = format.fmt.pix_mp.height; 265 inst->colorspace = pixmp->colorspace; 266 inst->ycbcr_enc = pixmp->ycbcr_enc; 267 inst->quantization = pixmp->quantization; 268 inst->xfer_func = pixmp->xfer_func; 269 } 270 271 memset(&format, 0, sizeof(format)); 272 273 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 274 format.fmt.pix_mp.pixelformat = pixfmt_cap; 275 format.fmt.pix_mp.width = orig_pixmp.width; 276 format.fmt.pix_mp.height = orig_pixmp.height; 277 vdec_try_fmt_common(inst, &format); 278 279 inst->width = format.fmt.pix_mp.width; 280 inst->height = format.fmt.pix_mp.height; 281 282 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 283 inst->fmt_out = fmt; 284 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 285 inst->fmt_cap = fmt; 286 287 return 0; 288 } 289 290 static int 291 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s) 292 { 293 struct venus_inst *inst = to_inst(file); 294 295 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 296 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 297 return -EINVAL; 298 299 switch (s->target) { 300 case V4L2_SEL_TGT_CROP_BOUNDS: 301 case V4L2_SEL_TGT_CROP_DEFAULT: 302 case V4L2_SEL_TGT_CROP: 303 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 304 return -EINVAL; 305 s->r.width = inst->out_width; 306 s->r.height = inst->out_height; 307 break; 308 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 309 case V4L2_SEL_TGT_COMPOSE_PADDED: 310 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 311 return -EINVAL; 312 s->r.width = inst->width; 313 s->r.height = inst->height; 314 break; 315 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 316 case V4L2_SEL_TGT_COMPOSE: 317 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 318 return -EINVAL; 319 s->r.width = inst->out_width; 320 s->r.height = inst->out_height; 321 break; 322 default: 323 return -EINVAL; 324 } 325 326 s->r.top = 0; 327 s->r.left = 0; 328 329 return 0; 330 } 331 332 static int 333 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap) 334 { 335 strscpy(cap->driver, "qcom-venus", sizeof(cap->driver)); 336 strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card)); 337 strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info)); 338 339 return 0; 340 } 341 342 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f) 343 { 344 struct venus_inst *inst = to_inst(file); 345 const struct venus_format *fmt; 346 347 memset(f->reserved, 0, sizeof(f->reserved)); 348 349 fmt = find_format_by_index(inst, f->index, f->type); 350 if (!fmt) 351 return -EINVAL; 352 353 f->pixelformat = fmt->pixfmt; 354 355 return 0; 356 } 357 358 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) 359 { 360 struct venus_inst *inst = to_inst(file); 361 struct v4l2_captureparm *cap = &a->parm.capture; 362 struct v4l2_fract *timeperframe = &cap->timeperframe; 363 u64 us_per_frame, fps; 364 365 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 366 a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 367 return -EINVAL; 368 369 memset(cap->reserved, 0, sizeof(cap->reserved)); 370 if (!timeperframe->denominator) 371 timeperframe->denominator = inst->timeperframe.denominator; 372 if (!timeperframe->numerator) 373 timeperframe->numerator = inst->timeperframe.numerator; 374 cap->readbuffers = 0; 375 cap->extendedmode = 0; 376 cap->capability = V4L2_CAP_TIMEPERFRAME; 377 us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC; 378 do_div(us_per_frame, timeperframe->denominator); 379 380 if (!us_per_frame) 381 return -EINVAL; 382 383 fps = (u64)USEC_PER_SEC; 384 do_div(fps, us_per_frame); 385 386 inst->fps = fps; 387 inst->timeperframe = *timeperframe; 388 389 return 0; 390 } 391 392 static int vdec_enum_framesizes(struct file *file, void *fh, 393 struct v4l2_frmsizeenum *fsize) 394 { 395 struct venus_inst *inst = to_inst(file); 396 const struct venus_format *fmt; 397 398 fmt = find_format(inst, fsize->pixel_format, 399 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 400 if (!fmt) { 401 fmt = find_format(inst, fsize->pixel_format, 402 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 403 if (!fmt) 404 return -EINVAL; 405 } 406 407 if (fsize->index) 408 return -EINVAL; 409 410 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 411 412 fsize->stepwise.min_width = frame_width_min(inst); 413 fsize->stepwise.max_width = frame_width_max(inst); 414 fsize->stepwise.step_width = frame_width_step(inst); 415 fsize->stepwise.min_height = frame_height_min(inst); 416 fsize->stepwise.max_height = frame_height_max(inst); 417 fsize->stepwise.step_height = frame_height_step(inst); 418 419 return 0; 420 } 421 422 static int vdec_subscribe_event(struct v4l2_fh *fh, 423 const struct v4l2_event_subscription *sub) 424 { 425 switch (sub->type) { 426 case V4L2_EVENT_EOS: 427 return v4l2_event_subscribe(fh, sub, 2, NULL); 428 case V4L2_EVENT_SOURCE_CHANGE: 429 return v4l2_src_change_event_subscribe(fh, sub); 430 case V4L2_EVENT_CTRL: 431 return v4l2_ctrl_subscribe_event(fh, sub); 432 default: 433 return -EINVAL; 434 } 435 } 436 437 static int 438 vdec_try_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd) 439 { 440 switch (cmd->cmd) { 441 case V4L2_DEC_CMD_STOP: 442 if (cmd->flags & V4L2_DEC_CMD_STOP_TO_BLACK) 443 return -EINVAL; 444 break; 445 default: 446 return -EINVAL; 447 } 448 449 return 0; 450 } 451 452 static int 453 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd) 454 { 455 struct venus_inst *inst = to_inst(file); 456 struct hfi_frame_data fdata = {0}; 457 int ret; 458 459 ret = vdec_try_decoder_cmd(file, fh, cmd); 460 if (ret) 461 return ret; 462 463 mutex_lock(&inst->lock); 464 465 /* 466 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on decoder 467 * input to signal EOS. 468 */ 469 if (!(inst->streamon_out & inst->streamon_cap)) 470 goto unlock; 471 472 fdata.buffer_type = HFI_BUFFER_INPUT; 473 fdata.flags |= HFI_BUFFERFLAG_EOS; 474 fdata.device_addr = 0xdeadbeef; 475 476 ret = hfi_session_process_buf(inst, &fdata); 477 478 unlock: 479 mutex_unlock(&inst->lock); 480 return ret; 481 } 482 483 static const struct v4l2_ioctl_ops vdec_ioctl_ops = { 484 .vidioc_querycap = vdec_querycap, 485 .vidioc_enum_fmt_vid_cap_mplane = vdec_enum_fmt, 486 .vidioc_enum_fmt_vid_out_mplane = vdec_enum_fmt, 487 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt, 488 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt, 489 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt, 490 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt, 491 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt, 492 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt, 493 .vidioc_g_selection = vdec_g_selection, 494 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, 495 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 496 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 497 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, 498 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 499 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 500 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 501 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 502 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 503 .vidioc_s_parm = vdec_s_parm, 504 .vidioc_enum_framesizes = vdec_enum_framesizes, 505 .vidioc_subscribe_event = vdec_subscribe_event, 506 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 507 .vidioc_try_decoder_cmd = vdec_try_decoder_cmd, 508 .vidioc_decoder_cmd = vdec_decoder_cmd, 509 }; 510 511 static int vdec_set_properties(struct venus_inst *inst) 512 { 513 struct vdec_controls *ctr = &inst->controls.dec; 514 struct hfi_enable en = { .enable = 1 }; 515 u32 ptype; 516 int ret; 517 518 if (ctr->post_loop_deb_mode) { 519 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER; 520 ret = hfi_session_set_property(inst, ptype, &en); 521 if (ret) 522 return ret; 523 } 524 525 return 0; 526 } 527 528 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE)) 529 530 static int vdec_output_conf(struct venus_inst *inst) 531 { 532 struct venus_core *core = inst->core; 533 struct hfi_enable en = { .enable = 1 }; 534 u32 width = inst->out_width; 535 u32 height = inst->out_height; 536 u32 out_fmt, out2_fmt; 537 bool ubwc = false; 538 u32 ptype; 539 int ret; 540 541 ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2); 542 if (ret) 543 return ret; 544 545 ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_1); 546 if (ret) 547 return ret; 548 549 if (core->res->hfi_version == HFI_VERSION_1XX) { 550 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER; 551 ret = hfi_session_set_property(inst, ptype, &en); 552 if (ret) 553 return ret; 554 } 555 556 /* Force searching UBWC formats for bigger then HD resolutions */ 557 if (width > 1920 && height > ALIGN(1080, 32)) 558 ubwc = true; 559 560 /* For Venus v4 UBWC format is mandatory */ 561 if (IS_V4(core)) 562 ubwc = true; 563 564 ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt, 565 &out2_fmt, ubwc); 566 if (ret) 567 return ret; 568 569 inst->output_buf_size = 570 venus_helper_get_framesz_raw(out_fmt, width, height); 571 inst->output2_buf_size = 572 venus_helper_get_framesz_raw(out2_fmt, width, height); 573 574 if (is_ubwc_fmt(out_fmt)) { 575 inst->opb_buftype = HFI_BUFFER_OUTPUT2; 576 inst->opb_fmt = out2_fmt; 577 inst->dpb_buftype = HFI_BUFFER_OUTPUT; 578 inst->dpb_fmt = out_fmt; 579 } else if (is_ubwc_fmt(out2_fmt)) { 580 inst->opb_buftype = HFI_BUFFER_OUTPUT; 581 inst->opb_fmt = out_fmt; 582 inst->dpb_buftype = HFI_BUFFER_OUTPUT2; 583 inst->dpb_fmt = out2_fmt; 584 } else { 585 inst->opb_buftype = HFI_BUFFER_OUTPUT; 586 inst->opb_fmt = out_fmt; 587 inst->dpb_buftype = 0; 588 inst->dpb_fmt = 0; 589 } 590 591 ret = venus_helper_set_raw_format(inst, inst->opb_fmt, 592 inst->opb_buftype); 593 if (ret) 594 return ret; 595 596 if (inst->dpb_fmt) { 597 ret = venus_helper_set_multistream(inst, false, true); 598 if (ret) 599 return ret; 600 601 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt, 602 inst->dpb_buftype); 603 if (ret) 604 return ret; 605 606 ret = venus_helper_set_output_resolution(inst, width, height, 607 HFI_BUFFER_OUTPUT2); 608 if (ret) 609 return ret; 610 } 611 612 if (IS_V3(core) || IS_V4(core)) { 613 if (inst->output2_buf_size) { 614 ret = venus_helper_set_bufsize(inst, 615 inst->output2_buf_size, 616 HFI_BUFFER_OUTPUT2); 617 if (ret) 618 return ret; 619 } 620 621 if (inst->output_buf_size) { 622 ret = venus_helper_set_bufsize(inst, 623 inst->output_buf_size, 624 HFI_BUFFER_OUTPUT); 625 if (ret) 626 return ret; 627 } 628 } 629 630 ret = venus_helper_set_dyn_bufmode(inst); 631 if (ret) 632 return ret; 633 634 return 0; 635 } 636 637 static int vdec_init_session(struct venus_inst *inst) 638 { 639 int ret; 640 641 ret = hfi_session_init(inst, inst->fmt_out->pixfmt); 642 if (ret) 643 return ret; 644 645 ret = venus_helper_set_input_resolution(inst, inst->out_width, 646 inst->out_height); 647 if (ret) 648 goto deinit; 649 650 ret = venus_helper_set_color_format(inst, inst->fmt_cap->pixfmt); 651 if (ret) 652 goto deinit; 653 654 return 0; 655 deinit: 656 hfi_session_deinit(inst); 657 return ret; 658 } 659 660 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num, 661 unsigned int *out_num) 662 { 663 enum hfi_version ver = inst->core->res->hfi_version; 664 struct hfi_buffer_requirements bufreq; 665 int ret; 666 667 *in_num = *out_num = 0; 668 669 ret = vdec_init_session(inst); 670 if (ret) 671 return ret; 672 673 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq); 674 if (ret) 675 goto deinit; 676 677 *in_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver); 678 679 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq); 680 if (ret) 681 goto deinit; 682 683 *out_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver); 684 685 deinit: 686 hfi_session_deinit(inst); 687 688 return ret; 689 } 690 691 static int vdec_queue_setup(struct vb2_queue *q, 692 unsigned int *num_buffers, unsigned int *num_planes, 693 unsigned int sizes[], struct device *alloc_devs[]) 694 { 695 struct venus_inst *inst = vb2_get_drv_priv(q); 696 unsigned int in_num, out_num; 697 int ret = 0; 698 699 if (*num_planes) { 700 unsigned int output_buf_size = venus_helper_get_opb_size(inst); 701 702 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 703 *num_planes != inst->fmt_out->num_planes) 704 return -EINVAL; 705 706 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 707 *num_planes != inst->fmt_cap->num_planes) 708 return -EINVAL; 709 710 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 711 sizes[0] < inst->input_buf_size) 712 return -EINVAL; 713 714 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 715 sizes[0] < output_buf_size) 716 return -EINVAL; 717 718 return 0; 719 } 720 721 ret = vdec_num_buffers(inst, &in_num, &out_num); 722 if (ret) 723 return ret; 724 725 switch (q->type) { 726 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 727 *num_planes = inst->fmt_out->num_planes; 728 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt, 729 inst->out_width, 730 inst->out_height); 731 inst->input_buf_size = sizes[0]; 732 *num_buffers = max(*num_buffers, in_num); 733 inst->num_input_bufs = *num_buffers; 734 inst->num_output_bufs = out_num; 735 break; 736 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 737 *num_planes = inst->fmt_cap->num_planes; 738 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt, 739 inst->width, 740 inst->height); 741 inst->output_buf_size = sizes[0]; 742 *num_buffers = max(*num_buffers, out_num); 743 inst->num_output_bufs = *num_buffers; 744 break; 745 default: 746 ret = -EINVAL; 747 break; 748 } 749 750 return ret; 751 } 752 753 static int vdec_verify_conf(struct venus_inst *inst) 754 { 755 enum hfi_version ver = inst->core->res->hfi_version; 756 struct hfi_buffer_requirements bufreq; 757 int ret; 758 759 if (!inst->num_input_bufs || !inst->num_output_bufs) 760 return -EINVAL; 761 762 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq); 763 if (ret) 764 return ret; 765 766 if (inst->num_output_bufs < bufreq.count_actual || 767 inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver)) 768 return -EINVAL; 769 770 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq); 771 if (ret) 772 return ret; 773 774 if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver)) 775 return -EINVAL; 776 777 return 0; 778 } 779 780 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count) 781 { 782 struct venus_inst *inst = vb2_get_drv_priv(q); 783 int ret; 784 785 mutex_lock(&inst->lock); 786 787 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 788 inst->streamon_out = 1; 789 else 790 inst->streamon_cap = 1; 791 792 if (!(inst->streamon_out & inst->streamon_cap)) { 793 mutex_unlock(&inst->lock); 794 return 0; 795 } 796 797 venus_helper_init_instance(inst); 798 799 inst->reconfig = false; 800 inst->sequence_cap = 0; 801 inst->sequence_out = 0; 802 803 ret = vdec_init_session(inst); 804 if (ret) 805 goto bufs_done; 806 807 ret = vdec_set_properties(inst); 808 if (ret) 809 goto deinit_sess; 810 811 ret = vdec_output_conf(inst); 812 if (ret) 813 goto deinit_sess; 814 815 ret = vdec_verify_conf(inst); 816 if (ret) 817 goto deinit_sess; 818 819 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs, 820 VB2_MAX_FRAME, VB2_MAX_FRAME); 821 if (ret) 822 goto deinit_sess; 823 824 ret = venus_helper_alloc_dpb_bufs(inst); 825 if (ret) 826 goto deinit_sess; 827 828 ret = venus_helper_vb2_start_streaming(inst); 829 if (ret) 830 goto deinit_sess; 831 832 mutex_unlock(&inst->lock); 833 834 return 0; 835 836 deinit_sess: 837 hfi_session_deinit(inst); 838 bufs_done: 839 venus_helper_buffers_done(inst, VB2_BUF_STATE_QUEUED); 840 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 841 inst->streamon_out = 0; 842 else 843 inst->streamon_cap = 0; 844 mutex_unlock(&inst->lock); 845 return ret; 846 } 847 848 static const struct vb2_ops vdec_vb2_ops = { 849 .queue_setup = vdec_queue_setup, 850 .buf_init = venus_helper_vb2_buf_init, 851 .buf_prepare = venus_helper_vb2_buf_prepare, 852 .start_streaming = vdec_start_streaming, 853 .stop_streaming = venus_helper_vb2_stop_streaming, 854 .buf_queue = venus_helper_vb2_buf_queue, 855 }; 856 857 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type, 858 u32 tag, u32 bytesused, u32 data_offset, u32 flags, 859 u32 hfi_flags, u64 timestamp_us) 860 { 861 enum vb2_buffer_state state = VB2_BUF_STATE_DONE; 862 struct vb2_v4l2_buffer *vbuf; 863 struct vb2_buffer *vb; 864 unsigned int type; 865 866 if (buf_type == HFI_BUFFER_INPUT) 867 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 868 else 869 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 870 871 vbuf = venus_helper_find_buf(inst, type, tag); 872 if (!vbuf) 873 return; 874 875 vbuf->flags = flags; 876 vbuf->field = V4L2_FIELD_NONE; 877 878 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 879 vb = &vbuf->vb2_buf; 880 vb2_set_plane_payload(vb, 0, bytesused); 881 vb->planes[0].data_offset = data_offset; 882 vb->timestamp = timestamp_us * NSEC_PER_USEC; 883 vbuf->sequence = inst->sequence_cap++; 884 885 if (vbuf->flags & V4L2_BUF_FLAG_LAST) { 886 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS }; 887 888 v4l2_event_queue_fh(&inst->fh, &ev); 889 } 890 } else { 891 vbuf->sequence = inst->sequence_out++; 892 } 893 894 if (hfi_flags & HFI_BUFFERFLAG_READONLY) 895 venus_helper_acquire_buf_ref(vbuf); 896 897 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT) 898 state = VB2_BUF_STATE_ERROR; 899 900 v4l2_m2m_buf_done(vbuf, state); 901 } 902 903 static void vdec_event_notify(struct venus_inst *inst, u32 event, 904 struct hfi_event_data *data) 905 { 906 struct venus_core *core = inst->core; 907 struct device *dev = core->dev_dec; 908 static const struct v4l2_event ev = { 909 .type = V4L2_EVENT_SOURCE_CHANGE, 910 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION }; 911 912 switch (event) { 913 case EVT_SESSION_ERROR: 914 inst->session_error = true; 915 dev_err(dev, "dec: event session error %x\n", inst->error); 916 break; 917 case EVT_SYS_EVENT_CHANGE: 918 switch (data->event_type) { 919 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES: 920 hfi_session_continue(inst); 921 dev_dbg(dev, "event sufficient resources\n"); 922 break; 923 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES: 924 inst->reconfig_height = data->height; 925 inst->reconfig_width = data->width; 926 inst->reconfig = true; 927 928 v4l2_event_queue_fh(&inst->fh, &ev); 929 930 dev_dbg(dev, "event not sufficient resources (%ux%u)\n", 931 data->width, data->height); 932 break; 933 case HFI_EVENT_RELEASE_BUFFER_REFERENCE: 934 venus_helper_release_buf_ref(inst, data->tag); 935 break; 936 default: 937 break; 938 } 939 break; 940 default: 941 break; 942 } 943 } 944 945 static const struct hfi_inst_ops vdec_hfi_ops = { 946 .buf_done = vdec_buf_done, 947 .event_notify = vdec_event_notify, 948 }; 949 950 static void vdec_inst_init(struct venus_inst *inst) 951 { 952 inst->fmt_out = &vdec_formats[6]; 953 inst->fmt_cap = &vdec_formats[0]; 954 inst->width = 1280; 955 inst->height = ALIGN(720, 32); 956 inst->out_width = 1280; 957 inst->out_height = 720; 958 inst->fps = 30; 959 inst->timeperframe.numerator = 1; 960 inst->timeperframe.denominator = 30; 961 inst->hfi_codec = HFI_VIDEO_CODEC_H264; 962 } 963 964 static const struct v4l2_m2m_ops vdec_m2m_ops = { 965 .device_run = venus_helper_m2m_device_run, 966 .job_abort = venus_helper_m2m_job_abort, 967 }; 968 969 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, 970 struct vb2_queue *dst_vq) 971 { 972 struct venus_inst *inst = priv; 973 int ret; 974 975 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 976 src_vq->io_modes = VB2_MMAP | VB2_DMABUF; 977 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 978 src_vq->ops = &vdec_vb2_ops; 979 src_vq->mem_ops = &vb2_dma_sg_memops; 980 src_vq->drv_priv = inst; 981 src_vq->buf_struct_size = sizeof(struct venus_buffer); 982 src_vq->allow_zero_bytesused = 1; 983 src_vq->min_buffers_needed = 1; 984 src_vq->dev = inst->core->dev; 985 ret = vb2_queue_init(src_vq); 986 if (ret) 987 return ret; 988 989 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 990 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; 991 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 992 dst_vq->ops = &vdec_vb2_ops; 993 dst_vq->mem_ops = &vb2_dma_sg_memops; 994 dst_vq->drv_priv = inst; 995 dst_vq->buf_struct_size = sizeof(struct venus_buffer); 996 dst_vq->allow_zero_bytesused = 1; 997 dst_vq->min_buffers_needed = 1; 998 dst_vq->dev = inst->core->dev; 999 ret = vb2_queue_init(dst_vq); 1000 if (ret) { 1001 vb2_queue_release(src_vq); 1002 return ret; 1003 } 1004 1005 return 0; 1006 } 1007 1008 static int vdec_open(struct file *file) 1009 { 1010 struct venus_core *core = video_drvdata(file); 1011 struct venus_inst *inst; 1012 int ret; 1013 1014 inst = kzalloc(sizeof(*inst), GFP_KERNEL); 1015 if (!inst) 1016 return -ENOMEM; 1017 1018 INIT_LIST_HEAD(&inst->dpbbufs); 1019 INIT_LIST_HEAD(&inst->registeredbufs); 1020 INIT_LIST_HEAD(&inst->internalbufs); 1021 INIT_LIST_HEAD(&inst->list); 1022 mutex_init(&inst->lock); 1023 1024 inst->core = core; 1025 inst->session_type = VIDC_SESSION_TYPE_DEC; 1026 inst->num_output_bufs = 1; 1027 1028 venus_helper_init_instance(inst); 1029 1030 ret = pm_runtime_get_sync(core->dev_dec); 1031 if (ret < 0) 1032 goto err_free_inst; 1033 1034 ret = vdec_ctrl_init(inst); 1035 if (ret) 1036 goto err_put_sync; 1037 1038 ret = hfi_session_create(inst, &vdec_hfi_ops); 1039 if (ret) 1040 goto err_ctrl_deinit; 1041 1042 vdec_inst_init(inst); 1043 1044 /* 1045 * create m2m device for every instance, the m2m context scheduling 1046 * is made by firmware side so we do not need to care about. 1047 */ 1048 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops); 1049 if (IS_ERR(inst->m2m_dev)) { 1050 ret = PTR_ERR(inst->m2m_dev); 1051 goto err_session_destroy; 1052 } 1053 1054 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init); 1055 if (IS_ERR(inst->m2m_ctx)) { 1056 ret = PTR_ERR(inst->m2m_ctx); 1057 goto err_m2m_release; 1058 } 1059 1060 v4l2_fh_init(&inst->fh, core->vdev_dec); 1061 1062 inst->fh.ctrl_handler = &inst->ctrl_handler; 1063 v4l2_fh_add(&inst->fh); 1064 inst->fh.m2m_ctx = inst->m2m_ctx; 1065 file->private_data = &inst->fh; 1066 1067 return 0; 1068 1069 err_m2m_release: 1070 v4l2_m2m_release(inst->m2m_dev); 1071 err_session_destroy: 1072 hfi_session_destroy(inst); 1073 err_ctrl_deinit: 1074 vdec_ctrl_deinit(inst); 1075 err_put_sync: 1076 pm_runtime_put_sync(core->dev_dec); 1077 err_free_inst: 1078 kfree(inst); 1079 return ret; 1080 } 1081 1082 static int vdec_close(struct file *file) 1083 { 1084 struct venus_inst *inst = to_inst(file); 1085 1086 v4l2_m2m_ctx_release(inst->m2m_ctx); 1087 v4l2_m2m_release(inst->m2m_dev); 1088 vdec_ctrl_deinit(inst); 1089 hfi_session_destroy(inst); 1090 mutex_destroy(&inst->lock); 1091 v4l2_fh_del(&inst->fh); 1092 v4l2_fh_exit(&inst->fh); 1093 1094 pm_runtime_put_sync(inst->core->dev_dec); 1095 1096 kfree(inst); 1097 return 0; 1098 } 1099 1100 static const struct v4l2_file_operations vdec_fops = { 1101 .owner = THIS_MODULE, 1102 .open = vdec_open, 1103 .release = vdec_close, 1104 .unlocked_ioctl = video_ioctl2, 1105 .poll = v4l2_m2m_fop_poll, 1106 .mmap = v4l2_m2m_fop_mmap, 1107 #ifdef CONFIG_COMPAT 1108 .compat_ioctl32 = v4l2_compat_ioctl32, 1109 #endif 1110 }; 1111 1112 static int vdec_probe(struct platform_device *pdev) 1113 { 1114 struct device *dev = &pdev->dev; 1115 struct video_device *vdev; 1116 struct venus_core *core; 1117 int ret; 1118 1119 if (!dev->parent) 1120 return -EPROBE_DEFER; 1121 1122 core = dev_get_drvdata(dev->parent); 1123 if (!core) 1124 return -EPROBE_DEFER; 1125 1126 if (IS_V3(core) || IS_V4(core)) { 1127 core->core0_clk = devm_clk_get(dev, "core"); 1128 if (IS_ERR(core->core0_clk)) 1129 return PTR_ERR(core->core0_clk); 1130 } 1131 1132 if (IS_V4(core)) { 1133 core->core0_bus_clk = devm_clk_get(dev, "bus"); 1134 if (IS_ERR(core->core0_bus_clk)) 1135 return PTR_ERR(core->core0_bus_clk); 1136 } 1137 1138 platform_set_drvdata(pdev, core); 1139 1140 vdev = video_device_alloc(); 1141 if (!vdev) 1142 return -ENOMEM; 1143 1144 strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name)); 1145 vdev->release = video_device_release; 1146 vdev->fops = &vdec_fops; 1147 vdev->ioctl_ops = &vdec_ioctl_ops; 1148 vdev->vfl_dir = VFL_DIR_M2M; 1149 vdev->v4l2_dev = &core->v4l2_dev; 1150 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; 1151 1152 ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 1153 if (ret) 1154 goto err_vdev_release; 1155 1156 core->vdev_dec = vdev; 1157 core->dev_dec = dev; 1158 1159 video_set_drvdata(vdev, core); 1160 pm_runtime_enable(dev); 1161 1162 return 0; 1163 1164 err_vdev_release: 1165 video_device_release(vdev); 1166 return ret; 1167 } 1168 1169 static int vdec_remove(struct platform_device *pdev) 1170 { 1171 struct venus_core *core = dev_get_drvdata(pdev->dev.parent); 1172 1173 video_unregister_device(core->vdev_dec); 1174 pm_runtime_disable(core->dev_dec); 1175 1176 return 0; 1177 } 1178 1179 static __maybe_unused int vdec_runtime_suspend(struct device *dev) 1180 { 1181 struct venus_core *core = dev_get_drvdata(dev); 1182 int ret; 1183 1184 if (IS_V1(core)) 1185 return 0; 1186 1187 ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true); 1188 if (ret) 1189 return ret; 1190 1191 if (IS_V4(core)) 1192 clk_disable_unprepare(core->core0_bus_clk); 1193 1194 clk_disable_unprepare(core->core0_clk); 1195 1196 return venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false); 1197 } 1198 1199 static __maybe_unused int vdec_runtime_resume(struct device *dev) 1200 { 1201 struct venus_core *core = dev_get_drvdata(dev); 1202 int ret; 1203 1204 if (IS_V1(core)) 1205 return 0; 1206 1207 ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true); 1208 if (ret) 1209 return ret; 1210 1211 ret = clk_prepare_enable(core->core0_clk); 1212 if (ret) 1213 goto err_power_disable; 1214 1215 if (IS_V4(core)) 1216 ret = clk_prepare_enable(core->core0_bus_clk); 1217 1218 if (ret) 1219 goto err_unprepare_core0; 1220 1221 return venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false); 1222 1223 err_unprepare_core0: 1224 clk_disable_unprepare(core->core0_clk); 1225 err_power_disable: 1226 venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false); 1227 return ret; 1228 } 1229 1230 static const struct dev_pm_ops vdec_pm_ops = { 1231 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 1232 pm_runtime_force_resume) 1233 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL) 1234 }; 1235 1236 static const struct of_device_id vdec_dt_match[] = { 1237 { .compatible = "venus-decoder" }, 1238 { } 1239 }; 1240 MODULE_DEVICE_TABLE(of, vdec_dt_match); 1241 1242 static struct platform_driver qcom_venus_dec_driver = { 1243 .probe = vdec_probe, 1244 .remove = vdec_remove, 1245 .driver = { 1246 .name = "qcom-venus-decoder", 1247 .of_match_table = vdec_dt_match, 1248 .pm = &vdec_pm_ops, 1249 }, 1250 }; 1251 module_platform_driver(qcom_venus_dec_driver); 1252 1253 MODULE_ALIAS("platform:qcom-venus-decoder"); 1254 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver"); 1255 MODULE_LICENSE("GPL v2"); 1256