1 /* 2 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved. 3 * Copyright (C) 2017 Linaro Ltd. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 and 7 * only version 2 as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 */ 15 #include <linux/clk.h> 16 #include <linux/module.h> 17 #include <linux/platform_device.h> 18 #include <linux/pm_runtime.h> 19 #include <linux/slab.h> 20 #include <media/v4l2-ioctl.h> 21 #include <media/v4l2-event.h> 22 #include <media/v4l2-ctrls.h> 23 #include <media/v4l2-mem2mem.h> 24 #include <media/videobuf2-dma-sg.h> 25 26 #include "hfi_venus_io.h" 27 #include "core.h" 28 #include "helpers.h" 29 #include "vdec.h" 30 31 static u32 get_framesize_uncompressed(unsigned int plane, u32 width, u32 height) 32 { 33 u32 y_stride, uv_stride, y_plane; 34 u32 y_sclines, uv_sclines, uv_plane; 35 u32 size; 36 37 y_stride = ALIGN(width, 128); 38 uv_stride = ALIGN(width, 128); 39 y_sclines = ALIGN(height, 32); 40 uv_sclines = ALIGN(((height + 1) >> 1), 16); 41 42 y_plane = y_stride * y_sclines; 43 uv_plane = uv_stride * uv_sclines + SZ_4K; 44 size = y_plane + uv_plane + SZ_8K; 45 46 return ALIGN(size, SZ_4K); 47 } 48 49 static u32 get_framesize_compressed(unsigned int width, unsigned int height) 50 { 51 return ((width * height * 3 / 2) / 2) + 128; 52 } 53 54 /* 55 * Three resons to keep MPLANE formats (despite that the number of planes 56 * currently is one): 57 * - the MPLANE formats allow only one plane to be used 58 * - the downstream driver use MPLANE formats too 59 * - future firmware versions could add support for >1 planes 60 */ 61 static const struct venus_format vdec_formats[] = { 62 { 63 .pixfmt = V4L2_PIX_FMT_NV12, 64 .num_planes = 1, 65 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, 66 }, { 67 .pixfmt = V4L2_PIX_FMT_MPEG4, 68 .num_planes = 1, 69 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 70 }, { 71 .pixfmt = V4L2_PIX_FMT_MPEG2, 72 .num_planes = 1, 73 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 74 }, { 75 .pixfmt = V4L2_PIX_FMT_H263, 76 .num_planes = 1, 77 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 78 }, { 79 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G, 80 .num_planes = 1, 81 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 82 }, { 83 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L, 84 .num_planes = 1, 85 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 86 }, { 87 .pixfmt = V4L2_PIX_FMT_H264, 88 .num_planes = 1, 89 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 90 }, { 91 .pixfmt = V4L2_PIX_FMT_VP8, 92 .num_planes = 1, 93 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 94 }, { 95 .pixfmt = V4L2_PIX_FMT_VP9, 96 .num_planes = 1, 97 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 98 }, { 99 .pixfmt = V4L2_PIX_FMT_XVID, 100 .num_planes = 1, 101 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, 102 }, 103 }; 104 105 static const struct venus_format * 106 find_format(struct venus_inst *inst, u32 pixfmt, u32 type) 107 { 108 const struct venus_format *fmt = vdec_formats; 109 unsigned int size = ARRAY_SIZE(vdec_formats); 110 unsigned int i; 111 112 for (i = 0; i < size; i++) { 113 if (fmt[i].pixfmt == pixfmt) 114 break; 115 } 116 117 if (i == size || fmt[i].type != type) 118 return NULL; 119 120 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 121 !venus_helper_check_codec(inst, fmt[i].pixfmt)) 122 return NULL; 123 124 return &fmt[i]; 125 } 126 127 static const struct venus_format * 128 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type) 129 { 130 const struct venus_format *fmt = vdec_formats; 131 unsigned int size = ARRAY_SIZE(vdec_formats); 132 unsigned int i, k = 0; 133 134 if (index > size) 135 return NULL; 136 137 for (i = 0; i < size; i++) { 138 if (fmt[i].type != type) 139 continue; 140 if (k == index) 141 break; 142 k++; 143 } 144 145 if (i == size) 146 return NULL; 147 148 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 149 !venus_helper_check_codec(inst, fmt[i].pixfmt)) 150 return NULL; 151 152 return &fmt[i]; 153 } 154 155 static const struct venus_format * 156 vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f) 157 { 158 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; 159 struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt; 160 const struct venus_format *fmt; 161 unsigned int p; 162 163 memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved)); 164 memset(pixmp->reserved, 0, sizeof(pixmp->reserved)); 165 166 fmt = find_format(inst, pixmp->pixelformat, f->type); 167 if (!fmt) { 168 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 169 pixmp->pixelformat = V4L2_PIX_FMT_NV12; 170 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 171 pixmp->pixelformat = V4L2_PIX_FMT_H264; 172 else 173 return NULL; 174 fmt = find_format(inst, pixmp->pixelformat, f->type); 175 pixmp->width = 1280; 176 pixmp->height = 720; 177 } 178 179 pixmp->width = clamp(pixmp->width, inst->cap_width.min, 180 inst->cap_width.max); 181 pixmp->height = clamp(pixmp->height, inst->cap_height.min, 182 inst->cap_height.max); 183 184 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 185 pixmp->height = ALIGN(pixmp->height, 32); 186 187 if (pixmp->field == V4L2_FIELD_ANY) 188 pixmp->field = V4L2_FIELD_NONE; 189 pixmp->num_planes = fmt->num_planes; 190 pixmp->flags = 0; 191 192 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 193 for (p = 0; p < pixmp->num_planes; p++) { 194 pfmt[p].sizeimage = 195 get_framesize_uncompressed(p, pixmp->width, 196 pixmp->height); 197 pfmt[p].bytesperline = ALIGN(pixmp->width, 128); 198 } 199 } else { 200 pfmt[0].sizeimage = get_framesize_compressed(pixmp->width, 201 pixmp->height); 202 pfmt[0].bytesperline = 0; 203 } 204 205 return fmt; 206 } 207 208 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f) 209 { 210 struct venus_inst *inst = to_inst(file); 211 212 vdec_try_fmt_common(inst, f); 213 214 return 0; 215 } 216 217 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f) 218 { 219 struct venus_inst *inst = to_inst(file); 220 const struct venus_format *fmt = NULL; 221 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; 222 223 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 224 fmt = inst->fmt_cap; 225 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 226 fmt = inst->fmt_out; 227 228 if (inst->reconfig) { 229 struct v4l2_format format = {}; 230 231 inst->out_width = inst->reconfig_width; 232 inst->out_height = inst->reconfig_height; 233 inst->reconfig = false; 234 235 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 236 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt; 237 format.fmt.pix_mp.width = inst->out_width; 238 format.fmt.pix_mp.height = inst->out_height; 239 240 vdec_try_fmt_common(inst, &format); 241 242 inst->width = format.fmt.pix_mp.width; 243 inst->height = format.fmt.pix_mp.height; 244 } 245 246 pixmp->pixelformat = fmt->pixfmt; 247 248 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 249 pixmp->width = inst->width; 250 pixmp->height = inst->height; 251 pixmp->colorspace = inst->colorspace; 252 pixmp->ycbcr_enc = inst->ycbcr_enc; 253 pixmp->quantization = inst->quantization; 254 pixmp->xfer_func = inst->xfer_func; 255 } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { 256 pixmp->width = inst->out_width; 257 pixmp->height = inst->out_height; 258 } 259 260 vdec_try_fmt_common(inst, f); 261 262 return 0; 263 } 264 265 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f) 266 { 267 struct venus_inst *inst = to_inst(file); 268 struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; 269 struct v4l2_pix_format_mplane orig_pixmp; 270 const struct venus_format *fmt; 271 struct v4l2_format format; 272 u32 pixfmt_out = 0, pixfmt_cap = 0; 273 274 orig_pixmp = *pixmp; 275 276 fmt = vdec_try_fmt_common(inst, f); 277 278 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { 279 pixfmt_out = pixmp->pixelformat; 280 pixfmt_cap = inst->fmt_cap->pixfmt; 281 } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 282 pixfmt_cap = pixmp->pixelformat; 283 pixfmt_out = inst->fmt_out->pixfmt; 284 } 285 286 memset(&format, 0, sizeof(format)); 287 288 format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 289 format.fmt.pix_mp.pixelformat = pixfmt_out; 290 format.fmt.pix_mp.width = orig_pixmp.width; 291 format.fmt.pix_mp.height = orig_pixmp.height; 292 vdec_try_fmt_common(inst, &format); 293 294 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { 295 inst->out_width = format.fmt.pix_mp.width; 296 inst->out_height = format.fmt.pix_mp.height; 297 inst->colorspace = pixmp->colorspace; 298 inst->ycbcr_enc = pixmp->ycbcr_enc; 299 inst->quantization = pixmp->quantization; 300 inst->xfer_func = pixmp->xfer_func; 301 } 302 303 memset(&format, 0, sizeof(format)); 304 305 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 306 format.fmt.pix_mp.pixelformat = pixfmt_cap; 307 format.fmt.pix_mp.width = orig_pixmp.width; 308 format.fmt.pix_mp.height = orig_pixmp.height; 309 vdec_try_fmt_common(inst, &format); 310 311 inst->width = format.fmt.pix_mp.width; 312 inst->height = format.fmt.pix_mp.height; 313 314 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 315 inst->fmt_out = fmt; 316 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 317 inst->fmt_cap = fmt; 318 319 return 0; 320 } 321 322 static int 323 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s) 324 { 325 struct venus_inst *inst = to_inst(file); 326 327 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 328 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 329 return -EINVAL; 330 331 switch (s->target) { 332 case V4L2_SEL_TGT_CROP_BOUNDS: 333 case V4L2_SEL_TGT_CROP_DEFAULT: 334 case V4L2_SEL_TGT_CROP: 335 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 336 return -EINVAL; 337 s->r.width = inst->out_width; 338 s->r.height = inst->out_height; 339 break; 340 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 341 case V4L2_SEL_TGT_COMPOSE_PADDED: 342 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 343 return -EINVAL; 344 s->r.width = inst->width; 345 s->r.height = inst->height; 346 break; 347 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 348 case V4L2_SEL_TGT_COMPOSE: 349 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 350 return -EINVAL; 351 s->r.width = inst->out_width; 352 s->r.height = inst->out_height; 353 break; 354 default: 355 return -EINVAL; 356 } 357 358 s->r.top = 0; 359 s->r.left = 0; 360 361 return 0; 362 } 363 364 static int 365 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap) 366 { 367 strlcpy(cap->driver, "qcom-venus", sizeof(cap->driver)); 368 strlcpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card)); 369 strlcpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info)); 370 371 return 0; 372 } 373 374 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f) 375 { 376 struct venus_inst *inst = to_inst(file); 377 const struct venus_format *fmt; 378 379 memset(f->reserved, 0, sizeof(f->reserved)); 380 381 fmt = find_format_by_index(inst, f->index, f->type); 382 if (!fmt) 383 return -EINVAL; 384 385 f->pixelformat = fmt->pixfmt; 386 387 return 0; 388 } 389 390 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) 391 { 392 struct venus_inst *inst = to_inst(file); 393 struct v4l2_captureparm *cap = &a->parm.capture; 394 struct v4l2_fract *timeperframe = &cap->timeperframe; 395 u64 us_per_frame, fps; 396 397 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 398 a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 399 return -EINVAL; 400 401 memset(cap->reserved, 0, sizeof(cap->reserved)); 402 if (!timeperframe->denominator) 403 timeperframe->denominator = inst->timeperframe.denominator; 404 if (!timeperframe->numerator) 405 timeperframe->numerator = inst->timeperframe.numerator; 406 cap->readbuffers = 0; 407 cap->extendedmode = 0; 408 cap->capability = V4L2_CAP_TIMEPERFRAME; 409 us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC; 410 do_div(us_per_frame, timeperframe->denominator); 411 412 if (!us_per_frame) 413 return -EINVAL; 414 415 fps = (u64)USEC_PER_SEC; 416 do_div(fps, us_per_frame); 417 418 inst->fps = fps; 419 inst->timeperframe = *timeperframe; 420 421 return 0; 422 } 423 424 static int vdec_enum_framesizes(struct file *file, void *fh, 425 struct v4l2_frmsizeenum *fsize) 426 { 427 struct venus_inst *inst = to_inst(file); 428 const struct venus_format *fmt; 429 430 fmt = find_format(inst, fsize->pixel_format, 431 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 432 if (!fmt) { 433 fmt = find_format(inst, fsize->pixel_format, 434 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 435 if (!fmt) 436 return -EINVAL; 437 } 438 439 if (fsize->index) 440 return -EINVAL; 441 442 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 443 444 fsize->stepwise.min_width = inst->cap_width.min; 445 fsize->stepwise.max_width = inst->cap_width.max; 446 fsize->stepwise.step_width = inst->cap_width.step_size; 447 fsize->stepwise.min_height = inst->cap_height.min; 448 fsize->stepwise.max_height = inst->cap_height.max; 449 fsize->stepwise.step_height = inst->cap_height.step_size; 450 451 return 0; 452 } 453 454 static int vdec_subscribe_event(struct v4l2_fh *fh, 455 const struct v4l2_event_subscription *sub) 456 { 457 switch (sub->type) { 458 case V4L2_EVENT_EOS: 459 return v4l2_event_subscribe(fh, sub, 2, NULL); 460 case V4L2_EVENT_SOURCE_CHANGE: 461 return v4l2_src_change_event_subscribe(fh, sub); 462 case V4L2_EVENT_CTRL: 463 return v4l2_ctrl_subscribe_event(fh, sub); 464 default: 465 return -EINVAL; 466 } 467 } 468 469 static int 470 vdec_try_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd) 471 { 472 switch (cmd->cmd) { 473 case V4L2_DEC_CMD_STOP: 474 if (cmd->flags & V4L2_DEC_CMD_STOP_TO_BLACK) 475 return -EINVAL; 476 break; 477 default: 478 return -EINVAL; 479 } 480 481 return 0; 482 } 483 484 static int 485 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd) 486 { 487 struct venus_inst *inst = to_inst(file); 488 struct hfi_frame_data fdata = {0}; 489 int ret; 490 491 ret = vdec_try_decoder_cmd(file, fh, cmd); 492 if (ret) 493 return ret; 494 495 mutex_lock(&inst->lock); 496 497 /* 498 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on decoder 499 * input to signal EOS. 500 */ 501 if (!(inst->streamon_out & inst->streamon_cap)) 502 goto unlock; 503 504 fdata.buffer_type = HFI_BUFFER_INPUT; 505 fdata.flags |= HFI_BUFFERFLAG_EOS; 506 fdata.device_addr = 0xdeadbeef; 507 508 ret = hfi_session_process_buf(inst, &fdata); 509 510 unlock: 511 mutex_unlock(&inst->lock); 512 return ret; 513 } 514 515 static const struct v4l2_ioctl_ops vdec_ioctl_ops = { 516 .vidioc_querycap = vdec_querycap, 517 .vidioc_enum_fmt_vid_cap_mplane = vdec_enum_fmt, 518 .vidioc_enum_fmt_vid_out_mplane = vdec_enum_fmt, 519 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt, 520 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt, 521 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt, 522 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt, 523 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt, 524 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt, 525 .vidioc_g_selection = vdec_g_selection, 526 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, 527 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 528 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 529 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, 530 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 531 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 532 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 533 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 534 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 535 .vidioc_s_parm = vdec_s_parm, 536 .vidioc_enum_framesizes = vdec_enum_framesizes, 537 .vidioc_subscribe_event = vdec_subscribe_event, 538 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 539 .vidioc_try_decoder_cmd = vdec_try_decoder_cmd, 540 .vidioc_decoder_cmd = vdec_decoder_cmd, 541 }; 542 543 static int vdec_set_properties(struct venus_inst *inst) 544 { 545 struct vdec_controls *ctr = &inst->controls.dec; 546 struct venus_core *core = inst->core; 547 struct hfi_enable en = { .enable = 1 }; 548 u32 ptype; 549 int ret; 550 551 if (core->res->hfi_version == HFI_VERSION_1XX) { 552 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER; 553 ret = hfi_session_set_property(inst, ptype, &en); 554 if (ret) 555 return ret; 556 } 557 558 if (core->res->hfi_version == HFI_VERSION_3XX || 559 inst->cap_bufs_mode_dynamic) { 560 struct hfi_buffer_alloc_mode mode; 561 562 ptype = HFI_PROPERTY_PARAM_BUFFER_ALLOC_MODE; 563 mode.type = HFI_BUFFER_OUTPUT; 564 mode.mode = HFI_BUFFER_MODE_DYNAMIC; 565 566 ret = hfi_session_set_property(inst, ptype, &mode); 567 if (ret) 568 return ret; 569 } 570 571 if (ctr->post_loop_deb_mode) { 572 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER; 573 en.enable = 1; 574 ret = hfi_session_set_property(inst, ptype, &en); 575 if (ret) 576 return ret; 577 } 578 579 return 0; 580 } 581 582 static int vdec_init_session(struct venus_inst *inst) 583 { 584 int ret; 585 586 ret = hfi_session_init(inst, inst->fmt_out->pixfmt); 587 if (ret) 588 return ret; 589 590 ret = venus_helper_set_input_resolution(inst, inst->out_width, 591 inst->out_height); 592 if (ret) 593 goto deinit; 594 595 ret = venus_helper_set_color_format(inst, inst->fmt_cap->pixfmt); 596 if (ret) 597 goto deinit; 598 599 return 0; 600 deinit: 601 hfi_session_deinit(inst); 602 return ret; 603 } 604 605 static int vdec_cap_num_buffers(struct venus_inst *inst, unsigned int *num) 606 { 607 struct hfi_buffer_requirements bufreq; 608 int ret; 609 610 ret = vdec_init_session(inst); 611 if (ret) 612 return ret; 613 614 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq); 615 616 *num = bufreq.count_actual; 617 618 hfi_session_deinit(inst); 619 620 return ret; 621 } 622 623 static int vdec_queue_setup(struct vb2_queue *q, 624 unsigned int *num_buffers, unsigned int *num_planes, 625 unsigned int sizes[], struct device *alloc_devs[]) 626 { 627 struct venus_inst *inst = vb2_get_drv_priv(q); 628 unsigned int p, num; 629 int ret = 0; 630 631 if (*num_planes) { 632 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 633 *num_planes != inst->fmt_out->num_planes) 634 return -EINVAL; 635 636 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 637 *num_planes != inst->fmt_cap->num_planes) 638 return -EINVAL; 639 640 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 641 sizes[0] < inst->input_buf_size) 642 return -EINVAL; 643 644 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 645 sizes[0] < inst->output_buf_size) 646 return -EINVAL; 647 648 return 0; 649 } 650 651 switch (q->type) { 652 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 653 *num_planes = inst->fmt_out->num_planes; 654 sizes[0] = get_framesize_compressed(inst->out_width, 655 inst->out_height); 656 inst->input_buf_size = sizes[0]; 657 inst->num_input_bufs = *num_buffers; 658 659 ret = vdec_cap_num_buffers(inst, &num); 660 if (ret) 661 break; 662 663 inst->num_output_bufs = num; 664 break; 665 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 666 *num_planes = inst->fmt_cap->num_planes; 667 668 ret = vdec_cap_num_buffers(inst, &num); 669 if (ret) 670 break; 671 672 *num_buffers = max(*num_buffers, num); 673 674 for (p = 0; p < *num_planes; p++) 675 sizes[p] = get_framesize_uncompressed(p, inst->width, 676 inst->height); 677 678 inst->num_output_bufs = *num_buffers; 679 inst->output_buf_size = sizes[0]; 680 break; 681 default: 682 ret = -EINVAL; 683 break; 684 } 685 686 return ret; 687 } 688 689 static int vdec_verify_conf(struct venus_inst *inst) 690 { 691 struct hfi_buffer_requirements bufreq; 692 int ret; 693 694 if (!inst->num_input_bufs || !inst->num_output_bufs) 695 return -EINVAL; 696 697 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq); 698 if (ret) 699 return ret; 700 701 if (inst->num_output_bufs < bufreq.count_actual || 702 inst->num_output_bufs < bufreq.count_min) 703 return -EINVAL; 704 705 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq); 706 if (ret) 707 return ret; 708 709 if (inst->num_input_bufs < bufreq.count_min) 710 return -EINVAL; 711 712 return 0; 713 } 714 715 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count) 716 { 717 struct venus_inst *inst = vb2_get_drv_priv(q); 718 struct venus_core *core = inst->core; 719 u32 ptype; 720 int ret; 721 722 mutex_lock(&inst->lock); 723 724 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 725 inst->streamon_out = 1; 726 else 727 inst->streamon_cap = 1; 728 729 if (!(inst->streamon_out & inst->streamon_cap)) { 730 mutex_unlock(&inst->lock); 731 return 0; 732 } 733 734 venus_helper_init_instance(inst); 735 736 inst->reconfig = false; 737 inst->sequence_cap = 0; 738 inst->sequence_out = 0; 739 740 ret = vdec_init_session(inst); 741 if (ret) 742 goto bufs_done; 743 744 ret = vdec_set_properties(inst); 745 if (ret) 746 goto deinit_sess; 747 748 if (core->res->hfi_version == HFI_VERSION_3XX) { 749 struct hfi_buffer_size_actual buf_sz; 750 751 ptype = HFI_PROPERTY_PARAM_BUFFER_SIZE_ACTUAL; 752 buf_sz.type = HFI_BUFFER_OUTPUT; 753 buf_sz.size = inst->output_buf_size; 754 755 ret = hfi_session_set_property(inst, ptype, &buf_sz); 756 if (ret) 757 goto deinit_sess; 758 } 759 760 ret = vdec_verify_conf(inst); 761 if (ret) 762 goto deinit_sess; 763 764 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs, 765 VB2_MAX_FRAME); 766 if (ret) 767 goto deinit_sess; 768 769 ret = venus_helper_vb2_start_streaming(inst); 770 if (ret) 771 goto deinit_sess; 772 773 mutex_unlock(&inst->lock); 774 775 return 0; 776 777 deinit_sess: 778 hfi_session_deinit(inst); 779 bufs_done: 780 venus_helper_buffers_done(inst, VB2_BUF_STATE_QUEUED); 781 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 782 inst->streamon_out = 0; 783 else 784 inst->streamon_cap = 0; 785 mutex_unlock(&inst->lock); 786 return ret; 787 } 788 789 static const struct vb2_ops vdec_vb2_ops = { 790 .queue_setup = vdec_queue_setup, 791 .buf_init = venus_helper_vb2_buf_init, 792 .buf_prepare = venus_helper_vb2_buf_prepare, 793 .start_streaming = vdec_start_streaming, 794 .stop_streaming = venus_helper_vb2_stop_streaming, 795 .buf_queue = venus_helper_vb2_buf_queue, 796 }; 797 798 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type, 799 u32 tag, u32 bytesused, u32 data_offset, u32 flags, 800 u32 hfi_flags, u64 timestamp_us) 801 { 802 enum vb2_buffer_state state = VB2_BUF_STATE_DONE; 803 struct vb2_v4l2_buffer *vbuf; 804 struct vb2_buffer *vb; 805 unsigned int type; 806 807 if (buf_type == HFI_BUFFER_INPUT) 808 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 809 else 810 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 811 812 vbuf = venus_helper_find_buf(inst, type, tag); 813 if (!vbuf) 814 return; 815 816 vbuf->flags = flags; 817 vbuf->field = V4L2_FIELD_NONE; 818 819 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 820 vb = &vbuf->vb2_buf; 821 vb->planes[0].bytesused = 822 max_t(unsigned int, inst->output_buf_size, bytesused); 823 vb->planes[0].data_offset = data_offset; 824 vb->timestamp = timestamp_us * NSEC_PER_USEC; 825 vbuf->sequence = inst->sequence_cap++; 826 827 if (vbuf->flags & V4L2_BUF_FLAG_LAST) { 828 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS }; 829 830 v4l2_event_queue_fh(&inst->fh, &ev); 831 } 832 } else { 833 vbuf->sequence = inst->sequence_out++; 834 } 835 836 if (hfi_flags & HFI_BUFFERFLAG_READONLY) 837 venus_helper_acquire_buf_ref(vbuf); 838 839 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT) 840 state = VB2_BUF_STATE_ERROR; 841 842 v4l2_m2m_buf_done(vbuf, state); 843 } 844 845 static void vdec_event_notify(struct venus_inst *inst, u32 event, 846 struct hfi_event_data *data) 847 { 848 struct venus_core *core = inst->core; 849 struct device *dev = core->dev_dec; 850 static const struct v4l2_event ev = { 851 .type = V4L2_EVENT_SOURCE_CHANGE, 852 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION }; 853 854 switch (event) { 855 case EVT_SESSION_ERROR: 856 inst->session_error = true; 857 dev_err(dev, "dec: event session error %x\n", inst->error); 858 break; 859 case EVT_SYS_EVENT_CHANGE: 860 switch (data->event_type) { 861 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES: 862 hfi_session_continue(inst); 863 dev_dbg(dev, "event sufficient resources\n"); 864 break; 865 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES: 866 inst->reconfig_height = data->height; 867 inst->reconfig_width = data->width; 868 inst->reconfig = true; 869 870 v4l2_event_queue_fh(&inst->fh, &ev); 871 872 dev_dbg(dev, "event not sufficient resources (%ux%u)\n", 873 data->width, data->height); 874 break; 875 case HFI_EVENT_RELEASE_BUFFER_REFERENCE: 876 venus_helper_release_buf_ref(inst, data->tag); 877 break; 878 default: 879 break; 880 } 881 break; 882 default: 883 break; 884 } 885 } 886 887 static const struct hfi_inst_ops vdec_hfi_ops = { 888 .buf_done = vdec_buf_done, 889 .event_notify = vdec_event_notify, 890 }; 891 892 static void vdec_inst_init(struct venus_inst *inst) 893 { 894 inst->fmt_out = &vdec_formats[6]; 895 inst->fmt_cap = &vdec_formats[0]; 896 inst->width = 1280; 897 inst->height = ALIGN(720, 32); 898 inst->out_width = 1280; 899 inst->out_height = 720; 900 inst->fps = 30; 901 inst->timeperframe.numerator = 1; 902 inst->timeperframe.denominator = 30; 903 904 inst->cap_width.min = 64; 905 inst->cap_width.max = 1920; 906 if (inst->core->res->hfi_version == HFI_VERSION_3XX) 907 inst->cap_width.max = 3840; 908 inst->cap_width.step_size = 1; 909 inst->cap_height.min = 64; 910 inst->cap_height.max = ALIGN(1080, 32); 911 if (inst->core->res->hfi_version == HFI_VERSION_3XX) 912 inst->cap_height.max = ALIGN(2160, 32); 913 inst->cap_height.step_size = 1; 914 inst->cap_framerate.min = 1; 915 inst->cap_framerate.max = 30; 916 inst->cap_framerate.step_size = 1; 917 inst->cap_mbs_per_frame.min = 16; 918 inst->cap_mbs_per_frame.max = 8160; 919 } 920 921 static const struct v4l2_m2m_ops vdec_m2m_ops = { 922 .device_run = venus_helper_m2m_device_run, 923 .job_abort = venus_helper_m2m_job_abort, 924 }; 925 926 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, 927 struct vb2_queue *dst_vq) 928 { 929 struct venus_inst *inst = priv; 930 int ret; 931 932 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 933 src_vq->io_modes = VB2_MMAP | VB2_DMABUF; 934 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 935 src_vq->ops = &vdec_vb2_ops; 936 src_vq->mem_ops = &vb2_dma_sg_memops; 937 src_vq->drv_priv = inst; 938 src_vq->buf_struct_size = sizeof(struct venus_buffer); 939 src_vq->allow_zero_bytesused = 1; 940 src_vq->min_buffers_needed = 1; 941 src_vq->dev = inst->core->dev; 942 ret = vb2_queue_init(src_vq); 943 if (ret) 944 return ret; 945 946 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 947 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; 948 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 949 dst_vq->ops = &vdec_vb2_ops; 950 dst_vq->mem_ops = &vb2_dma_sg_memops; 951 dst_vq->drv_priv = inst; 952 dst_vq->buf_struct_size = sizeof(struct venus_buffer); 953 dst_vq->allow_zero_bytesused = 1; 954 dst_vq->min_buffers_needed = 1; 955 dst_vq->dev = inst->core->dev; 956 ret = vb2_queue_init(dst_vq); 957 if (ret) { 958 vb2_queue_release(src_vq); 959 return ret; 960 } 961 962 return 0; 963 } 964 965 static int vdec_open(struct file *file) 966 { 967 struct venus_core *core = video_drvdata(file); 968 struct venus_inst *inst; 969 int ret; 970 971 inst = kzalloc(sizeof(*inst), GFP_KERNEL); 972 if (!inst) 973 return -ENOMEM; 974 975 INIT_LIST_HEAD(&inst->registeredbufs); 976 INIT_LIST_HEAD(&inst->internalbufs); 977 INIT_LIST_HEAD(&inst->list); 978 mutex_init(&inst->lock); 979 980 inst->core = core; 981 inst->session_type = VIDC_SESSION_TYPE_DEC; 982 inst->num_output_bufs = 1; 983 984 venus_helper_init_instance(inst); 985 986 ret = pm_runtime_get_sync(core->dev_dec); 987 if (ret < 0) 988 goto err_free_inst; 989 990 ret = vdec_ctrl_init(inst); 991 if (ret) 992 goto err_put_sync; 993 994 ret = hfi_session_create(inst, &vdec_hfi_ops); 995 if (ret) 996 goto err_ctrl_deinit; 997 998 vdec_inst_init(inst); 999 1000 /* 1001 * create m2m device for every instance, the m2m context scheduling 1002 * is made by firmware side so we do not need to care about. 1003 */ 1004 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops); 1005 if (IS_ERR(inst->m2m_dev)) { 1006 ret = PTR_ERR(inst->m2m_dev); 1007 goto err_session_destroy; 1008 } 1009 1010 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init); 1011 if (IS_ERR(inst->m2m_ctx)) { 1012 ret = PTR_ERR(inst->m2m_ctx); 1013 goto err_m2m_release; 1014 } 1015 1016 v4l2_fh_init(&inst->fh, core->vdev_dec); 1017 1018 inst->fh.ctrl_handler = &inst->ctrl_handler; 1019 v4l2_fh_add(&inst->fh); 1020 inst->fh.m2m_ctx = inst->m2m_ctx; 1021 file->private_data = &inst->fh; 1022 1023 return 0; 1024 1025 err_m2m_release: 1026 v4l2_m2m_release(inst->m2m_dev); 1027 err_session_destroy: 1028 hfi_session_destroy(inst); 1029 err_ctrl_deinit: 1030 vdec_ctrl_deinit(inst); 1031 err_put_sync: 1032 pm_runtime_put_sync(core->dev_dec); 1033 err_free_inst: 1034 kfree(inst); 1035 return ret; 1036 } 1037 1038 static int vdec_close(struct file *file) 1039 { 1040 struct venus_inst *inst = to_inst(file); 1041 1042 v4l2_m2m_ctx_release(inst->m2m_ctx); 1043 v4l2_m2m_release(inst->m2m_dev); 1044 vdec_ctrl_deinit(inst); 1045 hfi_session_destroy(inst); 1046 mutex_destroy(&inst->lock); 1047 v4l2_fh_del(&inst->fh); 1048 v4l2_fh_exit(&inst->fh); 1049 1050 pm_runtime_put_sync(inst->core->dev_dec); 1051 1052 kfree(inst); 1053 return 0; 1054 } 1055 1056 static const struct v4l2_file_operations vdec_fops = { 1057 .owner = THIS_MODULE, 1058 .open = vdec_open, 1059 .release = vdec_close, 1060 .unlocked_ioctl = video_ioctl2, 1061 .poll = v4l2_m2m_fop_poll, 1062 .mmap = v4l2_m2m_fop_mmap, 1063 #ifdef CONFIG_COMPAT 1064 .compat_ioctl32 = v4l2_compat_ioctl32, 1065 #endif 1066 }; 1067 1068 static int vdec_probe(struct platform_device *pdev) 1069 { 1070 struct device *dev = &pdev->dev; 1071 struct video_device *vdev; 1072 struct venus_core *core; 1073 int ret; 1074 1075 if (!dev->parent) 1076 return -EPROBE_DEFER; 1077 1078 core = dev_get_drvdata(dev->parent); 1079 if (!core) 1080 return -EPROBE_DEFER; 1081 1082 if (core->res->hfi_version == HFI_VERSION_3XX) { 1083 core->core0_clk = devm_clk_get(dev, "core"); 1084 if (IS_ERR(core->core0_clk)) 1085 return PTR_ERR(core->core0_clk); 1086 } 1087 1088 platform_set_drvdata(pdev, core); 1089 1090 vdev = video_device_alloc(); 1091 if (!vdev) 1092 return -ENOMEM; 1093 1094 strlcpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name)); 1095 vdev->release = video_device_release; 1096 vdev->fops = &vdec_fops; 1097 vdev->ioctl_ops = &vdec_ioctl_ops; 1098 vdev->vfl_dir = VFL_DIR_M2M; 1099 vdev->v4l2_dev = &core->v4l2_dev; 1100 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; 1101 1102 ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 1103 if (ret) 1104 goto err_vdev_release; 1105 1106 core->vdev_dec = vdev; 1107 core->dev_dec = dev; 1108 1109 video_set_drvdata(vdev, core); 1110 pm_runtime_enable(dev); 1111 1112 return 0; 1113 1114 err_vdev_release: 1115 video_device_release(vdev); 1116 return ret; 1117 } 1118 1119 static int vdec_remove(struct platform_device *pdev) 1120 { 1121 struct venus_core *core = dev_get_drvdata(pdev->dev.parent); 1122 1123 video_unregister_device(core->vdev_dec); 1124 pm_runtime_disable(core->dev_dec); 1125 1126 return 0; 1127 } 1128 1129 static __maybe_unused int vdec_runtime_suspend(struct device *dev) 1130 { 1131 struct venus_core *core = dev_get_drvdata(dev); 1132 1133 if (core->res->hfi_version == HFI_VERSION_1XX) 1134 return 0; 1135 1136 writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1137 clk_disable_unprepare(core->core0_clk); 1138 writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1139 1140 return 0; 1141 } 1142 1143 static __maybe_unused int vdec_runtime_resume(struct device *dev) 1144 { 1145 struct venus_core *core = dev_get_drvdata(dev); 1146 int ret; 1147 1148 if (core->res->hfi_version == HFI_VERSION_1XX) 1149 return 0; 1150 1151 writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1152 ret = clk_prepare_enable(core->core0_clk); 1153 writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1154 1155 return ret; 1156 } 1157 1158 static const struct dev_pm_ops vdec_pm_ops = { 1159 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 1160 pm_runtime_force_resume) 1161 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL) 1162 }; 1163 1164 static const struct of_device_id vdec_dt_match[] = { 1165 { .compatible = "venus-decoder" }, 1166 { } 1167 }; 1168 MODULE_DEVICE_TABLE(of, vdec_dt_match); 1169 1170 static struct platform_driver qcom_venus_dec_driver = { 1171 .probe = vdec_probe, 1172 .remove = vdec_remove, 1173 .driver = { 1174 .name = "qcom-venus-decoder", 1175 .of_match_table = vdec_dt_match, 1176 .pm = &vdec_pm_ops, 1177 }, 1178 }; 1179 module_platform_driver(qcom_venus_dec_driver); 1180 1181 MODULE_ALIAS("platform:qcom-venus-decoder"); 1182 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver"); 1183 MODULE_LICENSE("GPL v2"); 1184