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 if (cmd->cmd != V4L2_DEC_CMD_STOP) 473 return -EINVAL; 474 475 return 0; 476 } 477 478 static int 479 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd) 480 { 481 struct venus_inst *inst = to_inst(file); 482 int ret; 483 484 ret = vdec_try_decoder_cmd(file, fh, cmd); 485 if (ret) 486 return ret; 487 488 mutex_lock(&inst->lock); 489 inst->cmd_stop = true; 490 mutex_unlock(&inst->lock); 491 492 hfi_session_flush(inst); 493 494 return 0; 495 } 496 497 static const struct v4l2_ioctl_ops vdec_ioctl_ops = { 498 .vidioc_querycap = vdec_querycap, 499 .vidioc_enum_fmt_vid_cap_mplane = vdec_enum_fmt, 500 .vidioc_enum_fmt_vid_out_mplane = vdec_enum_fmt, 501 .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt, 502 .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt, 503 .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt, 504 .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt, 505 .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt, 506 .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt, 507 .vidioc_g_selection = vdec_g_selection, 508 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, 509 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 510 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 511 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, 512 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 513 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 514 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 515 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 516 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 517 .vidioc_s_parm = vdec_s_parm, 518 .vidioc_enum_framesizes = vdec_enum_framesizes, 519 .vidioc_subscribe_event = vdec_subscribe_event, 520 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 521 .vidioc_try_decoder_cmd = vdec_try_decoder_cmd, 522 .vidioc_decoder_cmd = vdec_decoder_cmd, 523 }; 524 525 static int vdec_set_properties(struct venus_inst *inst) 526 { 527 struct vdec_controls *ctr = &inst->controls.dec; 528 struct venus_core *core = inst->core; 529 struct hfi_enable en = { .enable = 1 }; 530 u32 ptype; 531 int ret; 532 533 if (core->res->hfi_version == HFI_VERSION_1XX) { 534 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER; 535 ret = hfi_session_set_property(inst, ptype, &en); 536 if (ret) 537 return ret; 538 } 539 540 if (core->res->hfi_version == HFI_VERSION_3XX || 541 inst->cap_bufs_mode_dynamic) { 542 struct hfi_buffer_alloc_mode mode; 543 544 ptype = HFI_PROPERTY_PARAM_BUFFER_ALLOC_MODE; 545 mode.type = HFI_BUFFER_OUTPUT; 546 mode.mode = HFI_BUFFER_MODE_DYNAMIC; 547 548 ret = hfi_session_set_property(inst, ptype, &mode); 549 if (ret) 550 return ret; 551 } 552 553 if (ctr->post_loop_deb_mode) { 554 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER; 555 en.enable = 1; 556 ret = hfi_session_set_property(inst, ptype, &en); 557 if (ret) 558 return ret; 559 } 560 561 return 0; 562 } 563 564 static int vdec_init_session(struct venus_inst *inst) 565 { 566 int ret; 567 568 ret = hfi_session_init(inst, inst->fmt_out->pixfmt); 569 if (ret) 570 return ret; 571 572 ret = venus_helper_set_input_resolution(inst, inst->out_width, 573 inst->out_height); 574 if (ret) 575 goto deinit; 576 577 ret = venus_helper_set_color_format(inst, inst->fmt_cap->pixfmt); 578 if (ret) 579 goto deinit; 580 581 return 0; 582 deinit: 583 hfi_session_deinit(inst); 584 return ret; 585 } 586 587 static int vdec_cap_num_buffers(struct venus_inst *inst, unsigned int *num) 588 { 589 struct hfi_buffer_requirements bufreq; 590 int ret; 591 592 ret = vdec_init_session(inst); 593 if (ret) 594 return ret; 595 596 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq); 597 598 *num = bufreq.count_actual; 599 600 hfi_session_deinit(inst); 601 602 return ret; 603 } 604 605 static int vdec_queue_setup(struct vb2_queue *q, 606 unsigned int *num_buffers, unsigned int *num_planes, 607 unsigned int sizes[], struct device *alloc_devs[]) 608 { 609 struct venus_inst *inst = vb2_get_drv_priv(q); 610 unsigned int p, num; 611 int ret = 0; 612 613 if (*num_planes) { 614 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 615 *num_planes != inst->fmt_out->num_planes) 616 return -EINVAL; 617 618 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 619 *num_planes != inst->fmt_cap->num_planes) 620 return -EINVAL; 621 622 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && 623 sizes[0] < inst->input_buf_size) 624 return -EINVAL; 625 626 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && 627 sizes[0] < inst->output_buf_size) 628 return -EINVAL; 629 630 return 0; 631 } 632 633 switch (q->type) { 634 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 635 *num_planes = inst->fmt_out->num_planes; 636 sizes[0] = get_framesize_compressed(inst->out_width, 637 inst->out_height); 638 inst->input_buf_size = sizes[0]; 639 inst->num_input_bufs = *num_buffers; 640 641 ret = vdec_cap_num_buffers(inst, &num); 642 if (ret) 643 break; 644 645 inst->num_output_bufs = num; 646 break; 647 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 648 *num_planes = inst->fmt_cap->num_planes; 649 650 ret = vdec_cap_num_buffers(inst, &num); 651 if (ret) 652 break; 653 654 *num_buffers = max(*num_buffers, num); 655 656 for (p = 0; p < *num_planes; p++) 657 sizes[p] = get_framesize_uncompressed(p, inst->width, 658 inst->height); 659 660 inst->num_output_bufs = *num_buffers; 661 inst->output_buf_size = sizes[0]; 662 break; 663 default: 664 ret = -EINVAL; 665 break; 666 } 667 668 return ret; 669 } 670 671 static int vdec_verify_conf(struct venus_inst *inst) 672 { 673 struct hfi_buffer_requirements bufreq; 674 int ret; 675 676 if (!inst->num_input_bufs || !inst->num_output_bufs) 677 return -EINVAL; 678 679 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq); 680 if (ret) 681 return ret; 682 683 if (inst->num_output_bufs < bufreq.count_actual || 684 inst->num_output_bufs < bufreq.count_min) 685 return -EINVAL; 686 687 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq); 688 if (ret) 689 return ret; 690 691 if (inst->num_input_bufs < bufreq.count_min) 692 return -EINVAL; 693 694 return 0; 695 } 696 697 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count) 698 { 699 struct venus_inst *inst = vb2_get_drv_priv(q); 700 struct venus_core *core = inst->core; 701 u32 ptype; 702 int ret; 703 704 mutex_lock(&inst->lock); 705 706 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 707 inst->streamon_out = 1; 708 else 709 inst->streamon_cap = 1; 710 711 if (!(inst->streamon_out & inst->streamon_cap)) { 712 mutex_unlock(&inst->lock); 713 return 0; 714 } 715 716 venus_helper_init_instance(inst); 717 718 inst->reconfig = false; 719 inst->sequence_cap = 0; 720 inst->sequence_out = 0; 721 inst->cmd_stop = false; 722 723 ret = vdec_init_session(inst); 724 if (ret) 725 goto bufs_done; 726 727 ret = vdec_set_properties(inst); 728 if (ret) 729 goto deinit_sess; 730 731 if (core->res->hfi_version == HFI_VERSION_3XX) { 732 struct hfi_buffer_size_actual buf_sz; 733 734 ptype = HFI_PROPERTY_PARAM_BUFFER_SIZE_ACTUAL; 735 buf_sz.type = HFI_BUFFER_OUTPUT; 736 buf_sz.size = inst->output_buf_size; 737 738 ret = hfi_session_set_property(inst, ptype, &buf_sz); 739 if (ret) 740 goto deinit_sess; 741 } 742 743 ret = vdec_verify_conf(inst); 744 if (ret) 745 goto deinit_sess; 746 747 ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs, 748 VB2_MAX_FRAME); 749 if (ret) 750 goto deinit_sess; 751 752 ret = venus_helper_vb2_start_streaming(inst); 753 if (ret) 754 goto deinit_sess; 755 756 mutex_unlock(&inst->lock); 757 758 return 0; 759 760 deinit_sess: 761 hfi_session_deinit(inst); 762 bufs_done: 763 venus_helper_buffers_done(inst, VB2_BUF_STATE_QUEUED); 764 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 765 inst->streamon_out = 0; 766 else 767 inst->streamon_cap = 0; 768 mutex_unlock(&inst->lock); 769 return ret; 770 } 771 772 static const struct vb2_ops vdec_vb2_ops = { 773 .queue_setup = vdec_queue_setup, 774 .buf_init = venus_helper_vb2_buf_init, 775 .buf_prepare = venus_helper_vb2_buf_prepare, 776 .start_streaming = vdec_start_streaming, 777 .stop_streaming = venus_helper_vb2_stop_streaming, 778 .buf_queue = venus_helper_vb2_buf_queue, 779 }; 780 781 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type, 782 u32 tag, u32 bytesused, u32 data_offset, u32 flags, 783 u32 hfi_flags, u64 timestamp_us) 784 { 785 enum vb2_buffer_state state = VB2_BUF_STATE_DONE; 786 struct vb2_v4l2_buffer *vbuf; 787 struct vb2_buffer *vb; 788 unsigned int type; 789 790 if (buf_type == HFI_BUFFER_INPUT) 791 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 792 else 793 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 794 795 vbuf = venus_helper_find_buf(inst, type, tag); 796 if (!vbuf) 797 return; 798 799 vbuf->flags = flags; 800 vbuf->field = V4L2_FIELD_NONE; 801 802 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 803 vb = &vbuf->vb2_buf; 804 vb->planes[0].bytesused = 805 max_t(unsigned int, inst->output_buf_size, bytesused); 806 vb->planes[0].data_offset = data_offset; 807 vb->timestamp = timestamp_us * NSEC_PER_USEC; 808 vbuf->sequence = inst->sequence_cap++; 809 810 if (inst->cmd_stop) { 811 vbuf->flags |= V4L2_BUF_FLAG_LAST; 812 inst->cmd_stop = false; 813 } 814 815 if (vbuf->flags & V4L2_BUF_FLAG_LAST) { 816 const struct v4l2_event ev = { .type = V4L2_EVENT_EOS }; 817 818 v4l2_event_queue_fh(&inst->fh, &ev); 819 } 820 } else { 821 vbuf->sequence = inst->sequence_out++; 822 } 823 824 if (hfi_flags & HFI_BUFFERFLAG_READONLY) 825 venus_helper_acquire_buf_ref(vbuf); 826 827 if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT) 828 state = VB2_BUF_STATE_ERROR; 829 830 v4l2_m2m_buf_done(vbuf, state); 831 } 832 833 static void vdec_event_notify(struct venus_inst *inst, u32 event, 834 struct hfi_event_data *data) 835 { 836 struct venus_core *core = inst->core; 837 struct device *dev = core->dev_dec; 838 static const struct v4l2_event ev = { 839 .type = V4L2_EVENT_SOURCE_CHANGE, 840 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION }; 841 842 switch (event) { 843 case EVT_SESSION_ERROR: 844 inst->session_error = true; 845 dev_err(dev, "dec: event session error %x\n", inst->error); 846 break; 847 case EVT_SYS_EVENT_CHANGE: 848 switch (data->event_type) { 849 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES: 850 hfi_session_continue(inst); 851 dev_dbg(dev, "event sufficient resources\n"); 852 break; 853 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES: 854 inst->reconfig_height = data->height; 855 inst->reconfig_width = data->width; 856 inst->reconfig = true; 857 858 v4l2_event_queue_fh(&inst->fh, &ev); 859 860 dev_dbg(dev, "event not sufficient resources (%ux%u)\n", 861 data->width, data->height); 862 break; 863 case HFI_EVENT_RELEASE_BUFFER_REFERENCE: 864 venus_helper_release_buf_ref(inst, data->tag); 865 break; 866 default: 867 break; 868 } 869 break; 870 default: 871 break; 872 } 873 } 874 875 static const struct hfi_inst_ops vdec_hfi_ops = { 876 .buf_done = vdec_buf_done, 877 .event_notify = vdec_event_notify, 878 }; 879 880 static void vdec_inst_init(struct venus_inst *inst) 881 { 882 inst->fmt_out = &vdec_formats[6]; 883 inst->fmt_cap = &vdec_formats[0]; 884 inst->width = 1280; 885 inst->height = ALIGN(720, 32); 886 inst->out_width = 1280; 887 inst->out_height = 720; 888 inst->fps = 30; 889 inst->timeperframe.numerator = 1; 890 inst->timeperframe.denominator = 30; 891 892 inst->cap_width.min = 64; 893 inst->cap_width.max = 1920; 894 if (inst->core->res->hfi_version == HFI_VERSION_3XX) 895 inst->cap_width.max = 3840; 896 inst->cap_width.step_size = 1; 897 inst->cap_height.min = 64; 898 inst->cap_height.max = ALIGN(1080, 32); 899 if (inst->core->res->hfi_version == HFI_VERSION_3XX) 900 inst->cap_height.max = ALIGN(2160, 32); 901 inst->cap_height.step_size = 1; 902 inst->cap_framerate.min = 1; 903 inst->cap_framerate.max = 30; 904 inst->cap_framerate.step_size = 1; 905 inst->cap_mbs_per_frame.min = 16; 906 inst->cap_mbs_per_frame.max = 8160; 907 } 908 909 static const struct v4l2_m2m_ops vdec_m2m_ops = { 910 .device_run = venus_helper_m2m_device_run, 911 .job_abort = venus_helper_m2m_job_abort, 912 }; 913 914 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, 915 struct vb2_queue *dst_vq) 916 { 917 struct venus_inst *inst = priv; 918 int ret; 919 920 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 921 src_vq->io_modes = VB2_MMAP | VB2_DMABUF; 922 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 923 src_vq->ops = &vdec_vb2_ops; 924 src_vq->mem_ops = &vb2_dma_sg_memops; 925 src_vq->drv_priv = inst; 926 src_vq->buf_struct_size = sizeof(struct venus_buffer); 927 src_vq->allow_zero_bytesused = 1; 928 src_vq->min_buffers_needed = 1; 929 src_vq->dev = inst->core->dev; 930 ret = vb2_queue_init(src_vq); 931 if (ret) 932 return ret; 933 934 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 935 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; 936 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 937 dst_vq->ops = &vdec_vb2_ops; 938 dst_vq->mem_ops = &vb2_dma_sg_memops; 939 dst_vq->drv_priv = inst; 940 dst_vq->buf_struct_size = sizeof(struct venus_buffer); 941 dst_vq->allow_zero_bytesused = 1; 942 dst_vq->min_buffers_needed = 1; 943 dst_vq->dev = inst->core->dev; 944 ret = vb2_queue_init(dst_vq); 945 if (ret) { 946 vb2_queue_release(src_vq); 947 return ret; 948 } 949 950 return 0; 951 } 952 953 static int vdec_open(struct file *file) 954 { 955 struct venus_core *core = video_drvdata(file); 956 struct venus_inst *inst; 957 int ret; 958 959 inst = kzalloc(sizeof(*inst), GFP_KERNEL); 960 if (!inst) 961 return -ENOMEM; 962 963 INIT_LIST_HEAD(&inst->registeredbufs); 964 INIT_LIST_HEAD(&inst->internalbufs); 965 INIT_LIST_HEAD(&inst->list); 966 mutex_init(&inst->lock); 967 968 inst->core = core; 969 inst->session_type = VIDC_SESSION_TYPE_DEC; 970 inst->num_output_bufs = 1; 971 972 venus_helper_init_instance(inst); 973 974 ret = pm_runtime_get_sync(core->dev_dec); 975 if (ret < 0) 976 goto err_free_inst; 977 978 ret = vdec_ctrl_init(inst); 979 if (ret) 980 goto err_put_sync; 981 982 ret = hfi_session_create(inst, &vdec_hfi_ops); 983 if (ret) 984 goto err_ctrl_deinit; 985 986 vdec_inst_init(inst); 987 988 /* 989 * create m2m device for every instance, the m2m context scheduling 990 * is made by firmware side so we do not need to care about. 991 */ 992 inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops); 993 if (IS_ERR(inst->m2m_dev)) { 994 ret = PTR_ERR(inst->m2m_dev); 995 goto err_session_destroy; 996 } 997 998 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init); 999 if (IS_ERR(inst->m2m_ctx)) { 1000 ret = PTR_ERR(inst->m2m_ctx); 1001 goto err_m2m_release; 1002 } 1003 1004 v4l2_fh_init(&inst->fh, core->vdev_dec); 1005 1006 inst->fh.ctrl_handler = &inst->ctrl_handler; 1007 v4l2_fh_add(&inst->fh); 1008 inst->fh.m2m_ctx = inst->m2m_ctx; 1009 file->private_data = &inst->fh; 1010 1011 return 0; 1012 1013 err_m2m_release: 1014 v4l2_m2m_release(inst->m2m_dev); 1015 err_session_destroy: 1016 hfi_session_destroy(inst); 1017 err_ctrl_deinit: 1018 vdec_ctrl_deinit(inst); 1019 err_put_sync: 1020 pm_runtime_put_sync(core->dev_dec); 1021 err_free_inst: 1022 kfree(inst); 1023 return ret; 1024 } 1025 1026 static int vdec_close(struct file *file) 1027 { 1028 struct venus_inst *inst = to_inst(file); 1029 1030 v4l2_m2m_ctx_release(inst->m2m_ctx); 1031 v4l2_m2m_release(inst->m2m_dev); 1032 vdec_ctrl_deinit(inst); 1033 hfi_session_destroy(inst); 1034 mutex_destroy(&inst->lock); 1035 v4l2_fh_del(&inst->fh); 1036 v4l2_fh_exit(&inst->fh); 1037 1038 pm_runtime_put_sync(inst->core->dev_dec); 1039 1040 kfree(inst); 1041 return 0; 1042 } 1043 1044 static const struct v4l2_file_operations vdec_fops = { 1045 .owner = THIS_MODULE, 1046 .open = vdec_open, 1047 .release = vdec_close, 1048 .unlocked_ioctl = video_ioctl2, 1049 .poll = v4l2_m2m_fop_poll, 1050 .mmap = v4l2_m2m_fop_mmap, 1051 #ifdef CONFIG_COMPAT 1052 .compat_ioctl32 = v4l2_compat_ioctl32, 1053 #endif 1054 }; 1055 1056 static int vdec_probe(struct platform_device *pdev) 1057 { 1058 struct device *dev = &pdev->dev; 1059 struct video_device *vdev; 1060 struct venus_core *core; 1061 int ret; 1062 1063 if (!dev->parent) 1064 return -EPROBE_DEFER; 1065 1066 core = dev_get_drvdata(dev->parent); 1067 if (!core) 1068 return -EPROBE_DEFER; 1069 1070 if (core->res->hfi_version == HFI_VERSION_3XX) { 1071 core->core0_clk = devm_clk_get(dev, "core"); 1072 if (IS_ERR(core->core0_clk)) 1073 return PTR_ERR(core->core0_clk); 1074 } 1075 1076 platform_set_drvdata(pdev, core); 1077 1078 vdev = video_device_alloc(); 1079 if (!vdev) 1080 return -ENOMEM; 1081 1082 strlcpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name)); 1083 vdev->release = video_device_release; 1084 vdev->fops = &vdec_fops; 1085 vdev->ioctl_ops = &vdec_ioctl_ops; 1086 vdev->vfl_dir = VFL_DIR_M2M; 1087 vdev->v4l2_dev = &core->v4l2_dev; 1088 vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; 1089 1090 ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 1091 if (ret) 1092 goto err_vdev_release; 1093 1094 core->vdev_dec = vdev; 1095 core->dev_dec = dev; 1096 1097 video_set_drvdata(vdev, core); 1098 pm_runtime_enable(dev); 1099 1100 return 0; 1101 1102 err_vdev_release: 1103 video_device_release(vdev); 1104 return ret; 1105 } 1106 1107 static int vdec_remove(struct platform_device *pdev) 1108 { 1109 struct venus_core *core = dev_get_drvdata(pdev->dev.parent); 1110 1111 video_unregister_device(core->vdev_dec); 1112 pm_runtime_disable(core->dev_dec); 1113 1114 return 0; 1115 } 1116 1117 static __maybe_unused int vdec_runtime_suspend(struct device *dev) 1118 { 1119 struct venus_core *core = dev_get_drvdata(dev); 1120 1121 if (core->res->hfi_version == HFI_VERSION_1XX) 1122 return 0; 1123 1124 writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1125 clk_disable_unprepare(core->core0_clk); 1126 writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1127 1128 return 0; 1129 } 1130 1131 static __maybe_unused int vdec_runtime_resume(struct device *dev) 1132 { 1133 struct venus_core *core = dev_get_drvdata(dev); 1134 int ret; 1135 1136 if (core->res->hfi_version == HFI_VERSION_1XX) 1137 return 0; 1138 1139 writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1140 ret = clk_prepare_enable(core->core0_clk); 1141 writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL); 1142 1143 return ret; 1144 } 1145 1146 static const struct dev_pm_ops vdec_pm_ops = { 1147 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 1148 pm_runtime_force_resume) 1149 SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL) 1150 }; 1151 1152 static const struct of_device_id vdec_dt_match[] = { 1153 { .compatible = "venus-decoder" }, 1154 { } 1155 }; 1156 MODULE_DEVICE_TABLE(of, vdec_dt_match); 1157 1158 static struct platform_driver qcom_venus_dec_driver = { 1159 .probe = vdec_probe, 1160 .remove = vdec_remove, 1161 .driver = { 1162 .name = "qcom-venus-decoder", 1163 .of_match_table = vdec_dt_match, 1164 .pm = &vdec_pm_ops, 1165 }, 1166 }; 1167 module_platform_driver(qcom_venus_dec_driver); 1168 1169 MODULE_ALIAS("platform:qcom-venus-decoder"); 1170 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver"); 1171 MODULE_LICENSE("GPL v2"); 1172