root/drivers/media/platform/qcom/venus/venc.c

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DEFINITIONS

This source file includes following definitions.
  1. find_format
  2. find_format_by_index
  3. venc_v4l2_to_hfi
  4. venc_querycap
  5. venc_enum_fmt
  6. venc_try_fmt_common
  7. venc_try_fmt
  8. venc_s_fmt
  9. venc_g_fmt
  10. venc_g_selection
  11. venc_s_selection
  12. venc_s_parm
  13. venc_g_parm
  14. venc_enum_framesizes
  15. venc_enum_frameintervals
  16. venc_set_properties
  17. venc_init_session
  18. venc_out_num_buffers
  19. venc_queue_setup
  20. venc_verify_conf
  21. venc_start_streaming
  22. venc_buf_done
  23. venc_event_notify
  24. m2m_queue_init
  25. venc_inst_init
  26. venc_open
  27. venc_close
  28. venc_probe
  29. venc_remove
  30. venc_runtime_suspend
  31. venc_runtime_resume

   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-mem2mem.h>
  13 #include <media/videobuf2-dma-sg.h>
  14 #include <media/v4l2-ioctl.h>
  15 #include <media/v4l2-event.h>
  16 #include <media/v4l2-ctrls.h>
  17 
  18 #include "hfi_venus_io.h"
  19 #include "hfi_parser.h"
  20 #include "core.h"
  21 #include "helpers.h"
  22 #include "venc.h"
  23 
  24 #define NUM_B_FRAMES_MAX        4
  25 
  26 /*
  27  * Three resons to keep MPLANE formats (despite that the number of planes
  28  * currently is one):
  29  * - the MPLANE formats allow only one plane to be used
  30  * - the downstream driver use MPLANE formats too
  31  * - future firmware versions could add support for >1 planes
  32  */
  33 static const struct venus_format venc_formats[] = {
  34         {
  35                 .pixfmt = V4L2_PIX_FMT_NV12,
  36                 .num_planes = 1,
  37                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  38         }, {
  39                 .pixfmt = V4L2_PIX_FMT_MPEG4,
  40                 .num_planes = 1,
  41                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  42         }, {
  43                 .pixfmt = V4L2_PIX_FMT_H263,
  44                 .num_planes = 1,
  45                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  46         }, {
  47                 .pixfmt = V4L2_PIX_FMT_H264,
  48                 .num_planes = 1,
  49                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  50         }, {
  51                 .pixfmt = V4L2_PIX_FMT_VP8,
  52                 .num_planes = 1,
  53                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  54         }, {
  55                 .pixfmt = V4L2_PIX_FMT_HEVC,
  56                 .num_planes = 1,
  57                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  58         },
  59 };
  60 
  61 static const struct venus_format *
  62 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
  63 {
  64         const struct venus_format *fmt = venc_formats;
  65         unsigned int size = ARRAY_SIZE(venc_formats);
  66         unsigned int i;
  67 
  68         for (i = 0; i < size; i++) {
  69                 if (fmt[i].pixfmt == pixfmt)
  70                         break;
  71         }
  72 
  73         if (i == size || fmt[i].type != type)
  74                 return NULL;
  75 
  76         if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
  77             !venus_helper_check_codec(inst, fmt[i].pixfmt))
  78                 return NULL;
  79 
  80         return &fmt[i];
  81 }
  82 
  83 static const struct venus_format *
  84 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
  85 {
  86         const struct venus_format *fmt = venc_formats;
  87         unsigned int size = ARRAY_SIZE(venc_formats);
  88         unsigned int i, k = 0;
  89 
  90         if (index > size)
  91                 return NULL;
  92 
  93         for (i = 0; i < size; i++) {
  94                 bool valid;
  95 
  96                 if (fmt[i].type != type)
  97                         continue;
  98                 valid = type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
  99                         venus_helper_check_codec(inst, fmt[i].pixfmt);
 100                 if (k == index && valid)
 101                         break;
 102                 if (valid)
 103                         k++;
 104         }
 105 
 106         if (i == size)
 107                 return NULL;
 108 
 109         return &fmt[i];
 110 }
 111 
 112 static int venc_v4l2_to_hfi(int id, int value)
 113 {
 114         switch (id) {
 115         case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
 116                 switch (value) {
 117                 case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0:
 118                 default:
 119                         return HFI_MPEG4_LEVEL_0;
 120                 case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B:
 121                         return HFI_MPEG4_LEVEL_0b;
 122                 case V4L2_MPEG_VIDEO_MPEG4_LEVEL_1:
 123                         return HFI_MPEG4_LEVEL_1;
 124                 case V4L2_MPEG_VIDEO_MPEG4_LEVEL_2:
 125                         return HFI_MPEG4_LEVEL_2;
 126                 case V4L2_MPEG_VIDEO_MPEG4_LEVEL_3:
 127                         return HFI_MPEG4_LEVEL_3;
 128                 case V4L2_MPEG_VIDEO_MPEG4_LEVEL_4:
 129                         return HFI_MPEG4_LEVEL_4;
 130                 case V4L2_MPEG_VIDEO_MPEG4_LEVEL_5:
 131                         return HFI_MPEG4_LEVEL_5;
 132                 }
 133         case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
 134                 switch (value) {
 135                 case V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE:
 136                 default:
 137                         return HFI_MPEG4_PROFILE_SIMPLE;
 138                 case V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE:
 139                         return HFI_MPEG4_PROFILE_ADVANCEDSIMPLE;
 140                 }
 141         case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
 142                 switch (value) {
 143                 case V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE:
 144                         return HFI_H264_PROFILE_BASELINE;
 145                 case V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE:
 146                         return HFI_H264_PROFILE_CONSTRAINED_BASE;
 147                 case V4L2_MPEG_VIDEO_H264_PROFILE_MAIN:
 148                         return HFI_H264_PROFILE_MAIN;
 149                 case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH:
 150                 default:
 151                         return HFI_H264_PROFILE_HIGH;
 152                 }
 153         case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
 154                 switch (value) {
 155                 case V4L2_MPEG_VIDEO_H264_LEVEL_1_0:
 156                         return HFI_H264_LEVEL_1;
 157                 case V4L2_MPEG_VIDEO_H264_LEVEL_1B:
 158                         return HFI_H264_LEVEL_1b;
 159                 case V4L2_MPEG_VIDEO_H264_LEVEL_1_1:
 160                         return HFI_H264_LEVEL_11;
 161                 case V4L2_MPEG_VIDEO_H264_LEVEL_1_2:
 162                         return HFI_H264_LEVEL_12;
 163                 case V4L2_MPEG_VIDEO_H264_LEVEL_1_3:
 164                         return HFI_H264_LEVEL_13;
 165                 case V4L2_MPEG_VIDEO_H264_LEVEL_2_0:
 166                         return HFI_H264_LEVEL_2;
 167                 case V4L2_MPEG_VIDEO_H264_LEVEL_2_1:
 168                         return HFI_H264_LEVEL_21;
 169                 case V4L2_MPEG_VIDEO_H264_LEVEL_2_2:
 170                         return HFI_H264_LEVEL_22;
 171                 case V4L2_MPEG_VIDEO_H264_LEVEL_3_0:
 172                         return HFI_H264_LEVEL_3;
 173                 case V4L2_MPEG_VIDEO_H264_LEVEL_3_1:
 174                         return HFI_H264_LEVEL_31;
 175                 case V4L2_MPEG_VIDEO_H264_LEVEL_3_2:
 176                         return HFI_H264_LEVEL_32;
 177                 case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
 178                         return HFI_H264_LEVEL_4;
 179                 case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
 180                         return HFI_H264_LEVEL_41;
 181                 case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
 182                         return HFI_H264_LEVEL_42;
 183                 case V4L2_MPEG_VIDEO_H264_LEVEL_5_0:
 184                 default:
 185                         return HFI_H264_LEVEL_5;
 186                 case V4L2_MPEG_VIDEO_H264_LEVEL_5_1:
 187                         return HFI_H264_LEVEL_51;
 188                 }
 189         case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
 190                 switch (value) {
 191                 case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC:
 192                 default:
 193                         return HFI_H264_ENTROPY_CAVLC;
 194                 case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC:
 195                         return HFI_H264_ENTROPY_CABAC;
 196                 }
 197         case V4L2_CID_MPEG_VIDEO_VP8_PROFILE:
 198                 switch (value) {
 199                 case 0:
 200                 default:
 201                         return HFI_VPX_PROFILE_VERSION_0;
 202                 case 1:
 203                         return HFI_VPX_PROFILE_VERSION_1;
 204                 case 2:
 205                         return HFI_VPX_PROFILE_VERSION_2;
 206                 case 3:
 207                         return HFI_VPX_PROFILE_VERSION_3;
 208                 }
 209         case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
 210                 switch (value) {
 211                 case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED:
 212                 default:
 213                         return HFI_H264_DB_MODE_ALL_BOUNDARY;
 214                 case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED:
 215                         return HFI_H264_DB_MODE_DISABLE;
 216                 case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY:
 217                         return HFI_H264_DB_MODE_SKIP_SLICE_BOUNDARY;
 218                 }
 219         case V4L2_CID_MPEG_VIDEO_HEVC_PROFILE:
 220                 switch (value) {
 221                 case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN:
 222                 default:
 223                         return HFI_HEVC_PROFILE_MAIN;
 224                 case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_STILL_PICTURE:
 225                         return HFI_HEVC_PROFILE_MAIN_STILL_PIC;
 226                 case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10:
 227                         return HFI_HEVC_PROFILE_MAIN10;
 228                 }
 229         case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL:
 230                 switch (value) {
 231                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_1:
 232                 default:
 233                         return HFI_HEVC_LEVEL_1;
 234                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_2:
 235                         return HFI_HEVC_LEVEL_2;
 236                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_2_1:
 237                         return HFI_HEVC_LEVEL_21;
 238                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_3:
 239                         return HFI_HEVC_LEVEL_3;
 240                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_3_1:
 241                         return HFI_HEVC_LEVEL_31;
 242                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_4:
 243                         return HFI_HEVC_LEVEL_4;
 244                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_4_1:
 245                         return HFI_HEVC_LEVEL_41;
 246                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_5:
 247                         return HFI_HEVC_LEVEL_5;
 248                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1:
 249                         return HFI_HEVC_LEVEL_51;
 250                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_2:
 251                         return HFI_HEVC_LEVEL_52;
 252                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_6:
 253                         return HFI_HEVC_LEVEL_6;
 254                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_1:
 255                         return HFI_HEVC_LEVEL_61;
 256                 case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_2:
 257                         return HFI_HEVC_LEVEL_62;
 258                 }
 259         }
 260 
 261         return 0;
 262 }
 263 
 264 static int
 265 venc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
 266 {
 267         strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
 268         strscpy(cap->card, "Qualcomm Venus video encoder", sizeof(cap->card));
 269         strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
 270 
 271         return 0;
 272 }
 273 
 274 static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
 275 {
 276         struct venus_inst *inst = to_inst(file);
 277         const struct venus_format *fmt;
 278 
 279         fmt = find_format_by_index(inst, f->index, f->type);
 280 
 281         memset(f->reserved, 0, sizeof(f->reserved));
 282 
 283         if (!fmt)
 284                 return -EINVAL;
 285 
 286         f->pixelformat = fmt->pixfmt;
 287 
 288         return 0;
 289 }
 290 
 291 static const struct venus_format *
 292 venc_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
 293 {
 294         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 295         struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
 296         const struct venus_format *fmt;
 297         u32 sizeimage;
 298 
 299         memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
 300         memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
 301 
 302         fmt = find_format(inst, pixmp->pixelformat, f->type);
 303         if (!fmt) {
 304                 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 305                         pixmp->pixelformat = V4L2_PIX_FMT_H264;
 306                 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 307                         pixmp->pixelformat = V4L2_PIX_FMT_NV12;
 308                 else
 309                         return NULL;
 310                 fmt = find_format(inst, pixmp->pixelformat, f->type);
 311         }
 312 
 313         pixmp->width = clamp(pixmp->width, frame_width_min(inst),
 314                              frame_width_max(inst));
 315         pixmp->height = clamp(pixmp->height, frame_height_min(inst),
 316                               frame_height_max(inst));
 317 
 318         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 319                 pixmp->height = ALIGN(pixmp->height, 32);
 320 
 321         pixmp->width = ALIGN(pixmp->width, 2);
 322         pixmp->height = ALIGN(pixmp->height, 2);
 323 
 324         if (pixmp->field == V4L2_FIELD_ANY)
 325                 pixmp->field = V4L2_FIELD_NONE;
 326         pixmp->num_planes = fmt->num_planes;
 327         pixmp->flags = 0;
 328 
 329         sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
 330                                              pixmp->width,
 331                                              pixmp->height);
 332         pfmt[0].sizeimage = max(ALIGN(pfmt[0].sizeimage, SZ_4K), sizeimage);
 333 
 334         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 335                 pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
 336         else
 337                 pfmt[0].bytesperline = 0;
 338 
 339         return fmt;
 340 }
 341 
 342 static int venc_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
 343 {
 344         struct venus_inst *inst = to_inst(file);
 345 
 346         venc_try_fmt_common(inst, f);
 347 
 348         return 0;
 349 }
 350 
 351 static int venc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
 352 {
 353         struct venus_inst *inst = to_inst(file);
 354         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 355         struct v4l2_pix_format_mplane orig_pixmp;
 356         const struct venus_format *fmt;
 357         struct v4l2_format format;
 358         u32 pixfmt_out = 0, pixfmt_cap = 0;
 359 
 360         orig_pixmp = *pixmp;
 361 
 362         fmt = venc_try_fmt_common(inst, f);
 363         if (!fmt)
 364                 return -EINVAL;
 365 
 366         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 367                 pixfmt_out = pixmp->pixelformat;
 368                 pixfmt_cap = inst->fmt_cap->pixfmt;
 369         } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 370                 pixfmt_cap = pixmp->pixelformat;
 371                 pixfmt_out = inst->fmt_out->pixfmt;
 372         }
 373 
 374         memset(&format, 0, sizeof(format));
 375 
 376         format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 377         format.fmt.pix_mp.pixelformat = pixfmt_out;
 378         format.fmt.pix_mp.width = orig_pixmp.width;
 379         format.fmt.pix_mp.height = orig_pixmp.height;
 380         venc_try_fmt_common(inst, &format);
 381 
 382         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 383                 inst->out_width = format.fmt.pix_mp.width;
 384                 inst->out_height = format.fmt.pix_mp.height;
 385                 inst->colorspace = pixmp->colorspace;
 386                 inst->ycbcr_enc = pixmp->ycbcr_enc;
 387                 inst->quantization = pixmp->quantization;
 388                 inst->xfer_func = pixmp->xfer_func;
 389         }
 390 
 391         memset(&format, 0, sizeof(format));
 392 
 393         format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 394         format.fmt.pix_mp.pixelformat = pixfmt_cap;
 395         format.fmt.pix_mp.width = orig_pixmp.width;
 396         format.fmt.pix_mp.height = orig_pixmp.height;
 397         venc_try_fmt_common(inst, &format);
 398 
 399         inst->width = format.fmt.pix_mp.width;
 400         inst->height = format.fmt.pix_mp.height;
 401 
 402         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 403                 inst->fmt_out = fmt;
 404         else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 405                 inst->fmt_cap = fmt;
 406                 inst->output_buf_size = pixmp->plane_fmt[0].sizeimage;
 407         }
 408 
 409         return 0;
 410 }
 411 
 412 static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
 413 {
 414         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 415         struct venus_inst *inst = to_inst(file);
 416         const struct venus_format *fmt;
 417 
 418         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 419                 fmt = inst->fmt_cap;
 420         else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 421                 fmt = inst->fmt_out;
 422         else
 423                 return -EINVAL;
 424 
 425         pixmp->pixelformat = fmt->pixfmt;
 426 
 427         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 428                 pixmp->width = inst->width;
 429                 pixmp->height = inst->height;
 430                 pixmp->colorspace = inst->colorspace;
 431                 pixmp->ycbcr_enc = inst->ycbcr_enc;
 432                 pixmp->quantization = inst->quantization;
 433                 pixmp->xfer_func = inst->xfer_func;
 434         } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 435                 pixmp->width = inst->out_width;
 436                 pixmp->height = inst->out_height;
 437         }
 438 
 439         venc_try_fmt_common(inst, f);
 440 
 441         return 0;
 442 }
 443 
 444 static int
 445 venc_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
 446 {
 447         struct venus_inst *inst = to_inst(file);
 448 
 449         if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 450                 return -EINVAL;
 451 
 452         switch (s->target) {
 453         case V4L2_SEL_TGT_CROP_DEFAULT:
 454         case V4L2_SEL_TGT_CROP_BOUNDS:
 455                 s->r.width = inst->width;
 456                 s->r.height = inst->height;
 457                 break;
 458         case V4L2_SEL_TGT_CROP:
 459                 s->r.width = inst->out_width;
 460                 s->r.height = inst->out_height;
 461                 break;
 462         default:
 463                 return -EINVAL;
 464         }
 465 
 466         s->r.top = 0;
 467         s->r.left = 0;
 468 
 469         return 0;
 470 }
 471 
 472 static int
 473 venc_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 474 {
 475         struct venus_inst *inst = to_inst(file);
 476 
 477         if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 478                 return -EINVAL;
 479 
 480         switch (s->target) {
 481         case V4L2_SEL_TGT_CROP:
 482                 if (s->r.width != inst->out_width ||
 483                     s->r.height != inst->out_height ||
 484                     s->r.top != 0 || s->r.left != 0)
 485                         return -EINVAL;
 486                 break;
 487         default:
 488                 return -EINVAL;
 489         }
 490 
 491         return 0;
 492 }
 493 
 494 static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 495 {
 496         struct venus_inst *inst = to_inst(file);
 497         struct v4l2_outputparm *out = &a->parm.output;
 498         struct v4l2_fract *timeperframe = &out->timeperframe;
 499         u64 us_per_frame, fps;
 500 
 501         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 502             a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 503                 return -EINVAL;
 504 
 505         memset(out->reserved, 0, sizeof(out->reserved));
 506 
 507         if (!timeperframe->denominator)
 508                 timeperframe->denominator = inst->timeperframe.denominator;
 509         if (!timeperframe->numerator)
 510                 timeperframe->numerator = inst->timeperframe.numerator;
 511 
 512         out->capability = V4L2_CAP_TIMEPERFRAME;
 513 
 514         us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
 515         do_div(us_per_frame, timeperframe->denominator);
 516 
 517         if (!us_per_frame)
 518                 return -EINVAL;
 519 
 520         fps = (u64)USEC_PER_SEC;
 521         do_div(fps, us_per_frame);
 522 
 523         inst->timeperframe = *timeperframe;
 524         inst->fps = fps;
 525 
 526         return 0;
 527 }
 528 
 529 static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 530 {
 531         struct venus_inst *inst = to_inst(file);
 532 
 533         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 534             a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 535                 return -EINVAL;
 536 
 537         a->parm.output.capability |= V4L2_CAP_TIMEPERFRAME;
 538         a->parm.output.timeperframe = inst->timeperframe;
 539 
 540         return 0;
 541 }
 542 
 543 static int venc_enum_framesizes(struct file *file, void *fh,
 544                                 struct v4l2_frmsizeenum *fsize)
 545 {
 546         struct venus_inst *inst = to_inst(file);
 547         const struct venus_format *fmt;
 548 
 549         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
 550 
 551         fmt = find_format(inst, fsize->pixel_format,
 552                           V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 553         if (!fmt) {
 554                 fmt = find_format(inst, fsize->pixel_format,
 555                                   V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 556                 if (!fmt)
 557                         return -EINVAL;
 558         }
 559 
 560         if (fsize->index)
 561                 return -EINVAL;
 562 
 563         fsize->stepwise.min_width = frame_width_min(inst);
 564         fsize->stepwise.max_width = frame_width_max(inst);
 565         fsize->stepwise.step_width = frame_width_step(inst);
 566         fsize->stepwise.min_height = frame_height_min(inst);
 567         fsize->stepwise.max_height = frame_height_max(inst);
 568         fsize->stepwise.step_height = frame_height_step(inst);
 569 
 570         return 0;
 571 }
 572 
 573 static int venc_enum_frameintervals(struct file *file, void *fh,
 574                                     struct v4l2_frmivalenum *fival)
 575 {
 576         struct venus_inst *inst = to_inst(file);
 577         const struct venus_format *fmt;
 578 
 579         fival->type = V4L2_FRMIVAL_TYPE_STEPWISE;
 580 
 581         fmt = find_format(inst, fival->pixel_format,
 582                           V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 583         if (!fmt) {
 584                 fmt = find_format(inst, fival->pixel_format,
 585                                   V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 586                 if (!fmt)
 587                         return -EINVAL;
 588         }
 589 
 590         if (fival->index)
 591                 return -EINVAL;
 592 
 593         if (!fival->width || !fival->height)
 594                 return -EINVAL;
 595 
 596         if (fival->width > frame_width_max(inst) ||
 597             fival->width < frame_width_min(inst) ||
 598             fival->height > frame_height_max(inst) ||
 599             fival->height < frame_height_min(inst))
 600                 return -EINVAL;
 601 
 602         fival->stepwise.min.numerator = 1;
 603         fival->stepwise.min.denominator = frate_max(inst);
 604         fival->stepwise.max.numerator = 1;
 605         fival->stepwise.max.denominator = frate_min(inst);
 606         fival->stepwise.step.numerator = 1;
 607         fival->stepwise.step.denominator = frate_max(inst);
 608 
 609         return 0;
 610 }
 611 
 612 static const struct v4l2_ioctl_ops venc_ioctl_ops = {
 613         .vidioc_querycap = venc_querycap,
 614         .vidioc_enum_fmt_vid_cap = venc_enum_fmt,
 615         .vidioc_enum_fmt_vid_out = venc_enum_fmt,
 616         .vidioc_s_fmt_vid_cap_mplane = venc_s_fmt,
 617         .vidioc_s_fmt_vid_out_mplane = venc_s_fmt,
 618         .vidioc_g_fmt_vid_cap_mplane = venc_g_fmt,
 619         .vidioc_g_fmt_vid_out_mplane = venc_g_fmt,
 620         .vidioc_try_fmt_vid_cap_mplane = venc_try_fmt,
 621         .vidioc_try_fmt_vid_out_mplane = venc_try_fmt,
 622         .vidioc_g_selection = venc_g_selection,
 623         .vidioc_s_selection = venc_s_selection,
 624         .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
 625         .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
 626         .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
 627         .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
 628         .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
 629         .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
 630         .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
 631         .vidioc_streamon = v4l2_m2m_ioctl_streamon,
 632         .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
 633         .vidioc_s_parm = venc_s_parm,
 634         .vidioc_g_parm = venc_g_parm,
 635         .vidioc_enum_framesizes = venc_enum_framesizes,
 636         .vidioc_enum_frameintervals = venc_enum_frameintervals,
 637         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
 638         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 639 };
 640 
 641 static int venc_set_properties(struct venus_inst *inst)
 642 {
 643         struct venc_controls *ctr = &inst->controls.enc;
 644         struct hfi_intra_period intra_period;
 645         struct hfi_profile_level pl;
 646         struct hfi_framerate frate;
 647         struct hfi_bitrate brate;
 648         struct hfi_idr_period idrp;
 649         struct hfi_quantization quant;
 650         struct hfi_quantization_range quant_range;
 651         u32 ptype, rate_control, bitrate, profile = 0, level = 0;
 652         int ret;
 653 
 654         ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
 655         if (ret)
 656                 return ret;
 657 
 658         ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_2);
 659         if (ret)
 660                 return ret;
 661 
 662         ptype = HFI_PROPERTY_CONFIG_FRAME_RATE;
 663         frate.buffer_type = HFI_BUFFER_OUTPUT;
 664         frate.framerate = inst->fps * (1 << 16);
 665 
 666         ret = hfi_session_set_property(inst, ptype, &frate);
 667         if (ret)
 668                 return ret;
 669 
 670         if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264) {
 671                 struct hfi_h264_vui_timing_info info;
 672                 struct hfi_h264_entropy_control entropy;
 673                 struct hfi_h264_db_control deblock;
 674 
 675                 ptype = HFI_PROPERTY_PARAM_VENC_H264_VUI_TIMING_INFO;
 676                 info.enable = 1;
 677                 info.fixed_framerate = 1;
 678                 info.time_scale = NSEC_PER_SEC;
 679 
 680                 ret = hfi_session_set_property(inst, ptype, &info);
 681                 if (ret)
 682                         return ret;
 683 
 684                 ptype = HFI_PROPERTY_PARAM_VENC_H264_ENTROPY_CONTROL;
 685                 entropy.entropy_mode = venc_v4l2_to_hfi(
 686                                           V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE,
 687                                           ctr->h264_entropy_mode);
 688                 entropy.cabac_model = HFI_H264_CABAC_MODEL_0;
 689 
 690                 ret = hfi_session_set_property(inst, ptype, &entropy);
 691                 if (ret)
 692                         return ret;
 693 
 694                 ptype = HFI_PROPERTY_PARAM_VENC_H264_DEBLOCK_CONTROL;
 695                 deblock.mode = venc_v4l2_to_hfi(
 696                                       V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
 697                                       ctr->h264_loop_filter_mode);
 698                 deblock.slice_alpha_offset = ctr->h264_loop_filter_alpha;
 699                 deblock.slice_beta_offset = ctr->h264_loop_filter_beta;
 700 
 701                 ret = hfi_session_set_property(inst, ptype, &deblock);
 702                 if (ret)
 703                         return ret;
 704         }
 705 
 706         /* IDR periodicity, n:
 707          * n = 0 - only the first I-frame is IDR frame
 708          * n = 1 - all I-frames will be IDR frames
 709          * n > 1 - every n-th I-frame will be IDR frame
 710          */
 711         ptype = HFI_PROPERTY_CONFIG_VENC_IDR_PERIOD;
 712         idrp.idr_period = 0;
 713         ret = hfi_session_set_property(inst, ptype, &idrp);
 714         if (ret)
 715                 return ret;
 716 
 717         if (ctr->num_b_frames) {
 718                 u32 max_num_b_frames = NUM_B_FRAMES_MAX;
 719 
 720                 ptype = HFI_PROPERTY_PARAM_VENC_MAX_NUM_B_FRAMES;
 721                 ret = hfi_session_set_property(inst, ptype, &max_num_b_frames);
 722                 if (ret)
 723                         return ret;
 724         }
 725 
 726         ptype = HFI_PROPERTY_CONFIG_VENC_INTRA_PERIOD;
 727         intra_period.pframes = ctr->num_p_frames;
 728         intra_period.bframes = ctr->num_b_frames;
 729 
 730         ret = hfi_session_set_property(inst, ptype, &intra_period);
 731         if (ret)
 732                 return ret;
 733 
 734         if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR)
 735                 rate_control = HFI_RATE_CONTROL_VBR_CFR;
 736         else
 737                 rate_control = HFI_RATE_CONTROL_CBR_CFR;
 738 
 739         ptype = HFI_PROPERTY_PARAM_VENC_RATE_CONTROL;
 740         ret = hfi_session_set_property(inst, ptype, &rate_control);
 741         if (ret)
 742                 return ret;
 743 
 744         if (!ctr->bitrate)
 745                 bitrate = 64000;
 746         else
 747                 bitrate = ctr->bitrate;
 748 
 749         ptype = HFI_PROPERTY_CONFIG_VENC_TARGET_BITRATE;
 750         brate.bitrate = bitrate;
 751         brate.layer_id = 0;
 752 
 753         ret = hfi_session_set_property(inst, ptype, &brate);
 754         if (ret)
 755                 return ret;
 756 
 757         if (!ctr->bitrate_peak)
 758                 bitrate *= 2;
 759         else
 760                 bitrate = ctr->bitrate_peak;
 761 
 762         ptype = HFI_PROPERTY_CONFIG_VENC_MAX_BITRATE;
 763         brate.bitrate = bitrate;
 764         brate.layer_id = 0;
 765 
 766         ret = hfi_session_set_property(inst, ptype, &brate);
 767         if (ret)
 768                 return ret;
 769 
 770         ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP;
 771         quant.qp_i = ctr->h264_i_qp;
 772         quant.qp_p = ctr->h264_p_qp;
 773         quant.qp_b = ctr->h264_b_qp;
 774         quant.layer_id = 0;
 775         ret = hfi_session_set_property(inst, ptype, &quant);
 776         if (ret)
 777                 return ret;
 778 
 779         ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP_RANGE;
 780         quant_range.min_qp = ctr->h264_min_qp;
 781         quant_range.max_qp = ctr->h264_max_qp;
 782         quant_range.layer_id = 0;
 783         ret = hfi_session_set_property(inst, ptype, &quant_range);
 784         if (ret)
 785                 return ret;
 786 
 787         if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264) {
 788                 profile = venc_v4l2_to_hfi(V4L2_CID_MPEG_VIDEO_H264_PROFILE,
 789                                            ctr->profile.h264);
 790                 level = venc_v4l2_to_hfi(V4L2_CID_MPEG_VIDEO_H264_LEVEL,
 791                                          ctr->level.h264);
 792         } else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_VP8) {
 793                 profile = venc_v4l2_to_hfi(V4L2_CID_MPEG_VIDEO_VP8_PROFILE,
 794                                            ctr->profile.vpx);
 795                 level = 0;
 796         } else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_MPEG4) {
 797                 profile = venc_v4l2_to_hfi(V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
 798                                            ctr->profile.mpeg4);
 799                 level = venc_v4l2_to_hfi(V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
 800                                          ctr->level.mpeg4);
 801         } else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H263) {
 802                 profile = 0;
 803                 level = 0;
 804         } else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
 805                 profile = venc_v4l2_to_hfi(V4L2_CID_MPEG_VIDEO_HEVC_PROFILE,
 806                                            ctr->profile.hevc);
 807                 level = venc_v4l2_to_hfi(V4L2_CID_MPEG_VIDEO_HEVC_LEVEL,
 808                                          ctr->level.hevc);
 809         }
 810 
 811         ptype = HFI_PROPERTY_PARAM_PROFILE_LEVEL_CURRENT;
 812         pl.profile = profile;
 813         pl.level = level;
 814 
 815         ret = hfi_session_set_property(inst, ptype, &pl);
 816         if (ret)
 817                 return ret;
 818 
 819         return 0;
 820 }
 821 
 822 static int venc_init_session(struct venus_inst *inst)
 823 {
 824         int ret;
 825 
 826         ret = hfi_session_init(inst, inst->fmt_cap->pixfmt);
 827         if (ret)
 828                 return ret;
 829 
 830         ret = venus_helper_set_input_resolution(inst, inst->width,
 831                                                 inst->height);
 832         if (ret)
 833                 goto deinit;
 834 
 835         ret = venus_helper_set_output_resolution(inst, inst->width,
 836                                                  inst->height,
 837                                                  HFI_BUFFER_OUTPUT);
 838         if (ret)
 839                 goto deinit;
 840 
 841         ret = venus_helper_set_color_format(inst, inst->fmt_out->pixfmt);
 842         if (ret)
 843                 goto deinit;
 844 
 845         ret = venc_set_properties(inst);
 846         if (ret)
 847                 goto deinit;
 848 
 849         return 0;
 850 deinit:
 851         hfi_session_deinit(inst);
 852         return ret;
 853 }
 854 
 855 static int venc_out_num_buffers(struct venus_inst *inst, unsigned int *num)
 856 {
 857         struct hfi_buffer_requirements bufreq;
 858         int ret;
 859 
 860         ret = venc_init_session(inst);
 861         if (ret)
 862                 return ret;
 863 
 864         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 865 
 866         *num = bufreq.count_actual;
 867 
 868         hfi_session_deinit(inst);
 869 
 870         return ret;
 871 }
 872 
 873 static int venc_queue_setup(struct vb2_queue *q,
 874                             unsigned int *num_buffers, unsigned int *num_planes,
 875                             unsigned int sizes[], struct device *alloc_devs[])
 876 {
 877         struct venus_inst *inst = vb2_get_drv_priv(q);
 878         unsigned int num, min = 4;
 879         int ret = 0;
 880 
 881         if (*num_planes) {
 882                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 883                     *num_planes != inst->fmt_out->num_planes)
 884                         return -EINVAL;
 885 
 886                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 887                     *num_planes != inst->fmt_cap->num_planes)
 888                         return -EINVAL;
 889 
 890                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 891                     sizes[0] < inst->input_buf_size)
 892                         return -EINVAL;
 893 
 894                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 895                     sizes[0] < inst->output_buf_size)
 896                         return -EINVAL;
 897 
 898                 return 0;
 899         }
 900 
 901         switch (q->type) {
 902         case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
 903                 *num_planes = inst->fmt_out->num_planes;
 904 
 905                 ret = venc_out_num_buffers(inst, &num);
 906                 if (ret)
 907                         break;
 908 
 909                 num = max(num, min);
 910                 *num_buffers = max(*num_buffers, num);
 911                 inst->num_input_bufs = *num_buffers;
 912 
 913                 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
 914                                                     inst->width,
 915                                                     inst->height);
 916                 inst->input_buf_size = sizes[0];
 917                 break;
 918         case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
 919                 *num_planes = inst->fmt_cap->num_planes;
 920                 *num_buffers = max(*num_buffers, min);
 921                 inst->num_output_bufs = *num_buffers;
 922                 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
 923                                                     inst->width,
 924                                                     inst->height);
 925                 sizes[0] = max(sizes[0], inst->output_buf_size);
 926                 inst->output_buf_size = sizes[0];
 927                 break;
 928         default:
 929                 ret = -EINVAL;
 930                 break;
 931         }
 932 
 933         return ret;
 934 }
 935 
 936 static int venc_verify_conf(struct venus_inst *inst)
 937 {
 938         enum hfi_version ver = inst->core->res->hfi_version;
 939         struct hfi_buffer_requirements bufreq;
 940         int ret;
 941 
 942         if (!inst->num_input_bufs || !inst->num_output_bufs)
 943                 return -EINVAL;
 944 
 945         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 946         if (ret)
 947                 return ret;
 948 
 949         if (inst->num_output_bufs < bufreq.count_actual ||
 950             inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
 951                 return -EINVAL;
 952 
 953         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 954         if (ret)
 955                 return ret;
 956 
 957         if (inst->num_input_bufs < bufreq.count_actual ||
 958             inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
 959                 return -EINVAL;
 960 
 961         return 0;
 962 }
 963 
 964 static int venc_start_streaming(struct vb2_queue *q, unsigned int count)
 965 {
 966         struct venus_inst *inst = vb2_get_drv_priv(q);
 967         int ret;
 968 
 969         mutex_lock(&inst->lock);
 970 
 971         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 972                 inst->streamon_out = 1;
 973         else
 974                 inst->streamon_cap = 1;
 975 
 976         if (!(inst->streamon_out & inst->streamon_cap)) {
 977                 mutex_unlock(&inst->lock);
 978                 return 0;
 979         }
 980 
 981         venus_helper_init_instance(inst);
 982 
 983         inst->sequence_cap = 0;
 984         inst->sequence_out = 0;
 985 
 986         ret = venc_init_session(inst);
 987         if (ret)
 988                 goto bufs_done;
 989 
 990         ret = venc_set_properties(inst);
 991         if (ret)
 992                 goto deinit_sess;
 993 
 994         ret = venc_verify_conf(inst);
 995         if (ret)
 996                 goto deinit_sess;
 997 
 998         ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
 999                                         inst->num_output_bufs, 0);
1000         if (ret)
1001                 goto deinit_sess;
1002 
1003         ret = venus_helper_vb2_start_streaming(inst);
1004         if (ret)
1005                 goto deinit_sess;
1006 
1007         mutex_unlock(&inst->lock);
1008 
1009         return 0;
1010 
1011 deinit_sess:
1012         hfi_session_deinit(inst);
1013 bufs_done:
1014         venus_helper_buffers_done(inst, VB2_BUF_STATE_QUEUED);
1015         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1016                 inst->streamon_out = 0;
1017         else
1018                 inst->streamon_cap = 0;
1019         mutex_unlock(&inst->lock);
1020         return ret;
1021 }
1022 
1023 static const struct vb2_ops venc_vb2_ops = {
1024         .queue_setup = venc_queue_setup,
1025         .buf_init = venus_helper_vb2_buf_init,
1026         .buf_prepare = venus_helper_vb2_buf_prepare,
1027         .start_streaming = venc_start_streaming,
1028         .stop_streaming = venus_helper_vb2_stop_streaming,
1029         .buf_queue = venus_helper_vb2_buf_queue,
1030 };
1031 
1032 static void venc_buf_done(struct venus_inst *inst, unsigned int buf_type,
1033                           u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1034                           u32 hfi_flags, u64 timestamp_us)
1035 {
1036         struct vb2_v4l2_buffer *vbuf;
1037         struct vb2_buffer *vb;
1038         unsigned int type;
1039 
1040         if (buf_type == HFI_BUFFER_INPUT)
1041                 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1042         else
1043                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1044 
1045         vbuf = venus_helper_find_buf(inst, type, tag);
1046         if (!vbuf)
1047                 return;
1048 
1049         vbuf->flags = flags;
1050 
1051         if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1052                 vb = &vbuf->vb2_buf;
1053                 vb2_set_plane_payload(vb, 0, bytesused + data_offset);
1054                 vb->planes[0].data_offset = data_offset;
1055                 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1056                 vbuf->sequence = inst->sequence_cap++;
1057         } else {
1058                 vbuf->sequence = inst->sequence_out++;
1059         }
1060 
1061         v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1062 }
1063 
1064 static void venc_event_notify(struct venus_inst *inst, u32 event,
1065                               struct hfi_event_data *data)
1066 {
1067         struct device *dev = inst->core->dev_enc;
1068 
1069         if (event == EVT_SESSION_ERROR) {
1070                 inst->session_error = true;
1071                 dev_err(dev, "enc: event session error %x\n", inst->error);
1072         }
1073 }
1074 
1075 static const struct hfi_inst_ops venc_hfi_ops = {
1076         .buf_done = venc_buf_done,
1077         .event_notify = venc_event_notify,
1078 };
1079 
1080 static const struct v4l2_m2m_ops venc_m2m_ops = {
1081         .device_run = venus_helper_m2m_device_run,
1082         .job_abort = venus_helper_m2m_job_abort,
1083 };
1084 
1085 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1086                           struct vb2_queue *dst_vq)
1087 {
1088         struct venus_inst *inst = priv;
1089         int ret;
1090 
1091         src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1092         src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1093         src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1094         src_vq->ops = &venc_vb2_ops;
1095         src_vq->mem_ops = &vb2_dma_sg_memops;
1096         src_vq->drv_priv = inst;
1097         src_vq->buf_struct_size = sizeof(struct venus_buffer);
1098         src_vq->allow_zero_bytesused = 1;
1099         src_vq->min_buffers_needed = 1;
1100         src_vq->dev = inst->core->dev;
1101         if (inst->core->res->hfi_version == HFI_VERSION_1XX)
1102                 src_vq->bidirectional = 1;
1103         ret = vb2_queue_init(src_vq);
1104         if (ret)
1105                 return ret;
1106 
1107         dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1108         dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1109         dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1110         dst_vq->ops = &venc_vb2_ops;
1111         dst_vq->mem_ops = &vb2_dma_sg_memops;
1112         dst_vq->drv_priv = inst;
1113         dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1114         dst_vq->allow_zero_bytesused = 1;
1115         dst_vq->min_buffers_needed = 1;
1116         dst_vq->dev = inst->core->dev;
1117         ret = vb2_queue_init(dst_vq);
1118         if (ret) {
1119                 vb2_queue_release(src_vq);
1120                 return ret;
1121         }
1122 
1123         return 0;
1124 }
1125 
1126 static void venc_inst_init(struct venus_inst *inst)
1127 {
1128         inst->fmt_cap = &venc_formats[2];
1129         inst->fmt_out = &venc_formats[0];
1130         inst->width = 1280;
1131         inst->height = ALIGN(720, 32);
1132         inst->out_width = 1280;
1133         inst->out_height = 720;
1134         inst->fps = 15;
1135         inst->timeperframe.numerator = 1;
1136         inst->timeperframe.denominator = 15;
1137         inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1138 }
1139 
1140 static int venc_open(struct file *file)
1141 {
1142         struct venus_core *core = video_drvdata(file);
1143         struct venus_inst *inst;
1144         int ret;
1145 
1146         inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1147         if (!inst)
1148                 return -ENOMEM;
1149 
1150         INIT_LIST_HEAD(&inst->dpbbufs);
1151         INIT_LIST_HEAD(&inst->registeredbufs);
1152         INIT_LIST_HEAD(&inst->internalbufs);
1153         INIT_LIST_HEAD(&inst->list);
1154         mutex_init(&inst->lock);
1155 
1156         inst->core = core;
1157         inst->session_type = VIDC_SESSION_TYPE_ENC;
1158 
1159         venus_helper_init_instance(inst);
1160 
1161         ret = pm_runtime_get_sync(core->dev_enc);
1162         if (ret < 0)
1163                 goto err_free_inst;
1164 
1165         ret = venc_ctrl_init(inst);
1166         if (ret)
1167                 goto err_put_sync;
1168 
1169         ret = hfi_session_create(inst, &venc_hfi_ops);
1170         if (ret)
1171                 goto err_ctrl_deinit;
1172 
1173         venc_inst_init(inst);
1174 
1175         /*
1176          * create m2m device for every instance, the m2m context scheduling
1177          * is made by firmware side so we do not need to care about.
1178          */
1179         inst->m2m_dev = v4l2_m2m_init(&venc_m2m_ops);
1180         if (IS_ERR(inst->m2m_dev)) {
1181                 ret = PTR_ERR(inst->m2m_dev);
1182                 goto err_session_destroy;
1183         }
1184 
1185         inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1186         if (IS_ERR(inst->m2m_ctx)) {
1187                 ret = PTR_ERR(inst->m2m_ctx);
1188                 goto err_m2m_release;
1189         }
1190 
1191         v4l2_fh_init(&inst->fh, core->vdev_enc);
1192 
1193         inst->fh.ctrl_handler = &inst->ctrl_handler;
1194         v4l2_fh_add(&inst->fh);
1195         inst->fh.m2m_ctx = inst->m2m_ctx;
1196         file->private_data = &inst->fh;
1197 
1198         return 0;
1199 
1200 err_m2m_release:
1201         v4l2_m2m_release(inst->m2m_dev);
1202 err_session_destroy:
1203         hfi_session_destroy(inst);
1204 err_ctrl_deinit:
1205         venc_ctrl_deinit(inst);
1206 err_put_sync:
1207         pm_runtime_put_sync(core->dev_enc);
1208 err_free_inst:
1209         kfree(inst);
1210         return ret;
1211 }
1212 
1213 static int venc_close(struct file *file)
1214 {
1215         struct venus_inst *inst = to_inst(file);
1216 
1217         v4l2_m2m_ctx_release(inst->m2m_ctx);
1218         v4l2_m2m_release(inst->m2m_dev);
1219         venc_ctrl_deinit(inst);
1220         hfi_session_destroy(inst);
1221         mutex_destroy(&inst->lock);
1222         v4l2_fh_del(&inst->fh);
1223         v4l2_fh_exit(&inst->fh);
1224 
1225         pm_runtime_put_sync(inst->core->dev_enc);
1226 
1227         kfree(inst);
1228         return 0;
1229 }
1230 
1231 static const struct v4l2_file_operations venc_fops = {
1232         .owner = THIS_MODULE,
1233         .open = venc_open,
1234         .release = venc_close,
1235         .unlocked_ioctl = video_ioctl2,
1236         .poll = v4l2_m2m_fop_poll,
1237         .mmap = v4l2_m2m_fop_mmap,
1238 };
1239 
1240 static int venc_probe(struct platform_device *pdev)
1241 {
1242         struct device *dev = &pdev->dev;
1243         struct video_device *vdev;
1244         struct venus_core *core;
1245         int ret;
1246 
1247         if (!dev->parent)
1248                 return -EPROBE_DEFER;
1249 
1250         core = dev_get_drvdata(dev->parent);
1251         if (!core)
1252                 return -EPROBE_DEFER;
1253 
1254         if (IS_V3(core) || IS_V4(core)) {
1255                 core->core1_clk = devm_clk_get(dev, "core");
1256                 if (IS_ERR(core->core1_clk))
1257                         return PTR_ERR(core->core1_clk);
1258         }
1259 
1260         if (IS_V4(core)) {
1261                 core->core1_bus_clk = devm_clk_get(dev, "bus");
1262                 if (IS_ERR(core->core1_bus_clk))
1263                         return PTR_ERR(core->core1_bus_clk);
1264         }
1265 
1266         platform_set_drvdata(pdev, core);
1267 
1268         vdev = video_device_alloc();
1269         if (!vdev)
1270                 return -ENOMEM;
1271 
1272         strscpy(vdev->name, "qcom-venus-encoder", sizeof(vdev->name));
1273         vdev->release = video_device_release;
1274         vdev->fops = &venc_fops;
1275         vdev->ioctl_ops = &venc_ioctl_ops;
1276         vdev->vfl_dir = VFL_DIR_M2M;
1277         vdev->v4l2_dev = &core->v4l2_dev;
1278         vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1279 
1280         ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
1281         if (ret)
1282                 goto err_vdev_release;
1283 
1284         core->vdev_enc = vdev;
1285         core->dev_enc = dev;
1286 
1287         video_set_drvdata(vdev, core);
1288         pm_runtime_enable(dev);
1289 
1290         return 0;
1291 
1292 err_vdev_release:
1293         video_device_release(vdev);
1294         return ret;
1295 }
1296 
1297 static int venc_remove(struct platform_device *pdev)
1298 {
1299         struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1300 
1301         video_unregister_device(core->vdev_enc);
1302         pm_runtime_disable(core->dev_enc);
1303 
1304         return 0;
1305 }
1306 
1307 static __maybe_unused int venc_runtime_suspend(struct device *dev)
1308 {
1309         struct venus_core *core = dev_get_drvdata(dev);
1310         int ret;
1311 
1312         if (IS_V1(core))
1313                 return 0;
1314 
1315         ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, true);
1316         if (ret)
1317                 return ret;
1318 
1319         if (IS_V4(core))
1320                 clk_disable_unprepare(core->core1_bus_clk);
1321 
1322         clk_disable_unprepare(core->core1_clk);
1323 
1324         return venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, false);
1325 }
1326 
1327 static __maybe_unused int venc_runtime_resume(struct device *dev)
1328 {
1329         struct venus_core *core = dev_get_drvdata(dev);
1330         int ret;
1331 
1332         if (IS_V1(core))
1333                 return 0;
1334 
1335         ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, true);
1336         if (ret)
1337                 return ret;
1338 
1339         ret = clk_prepare_enable(core->core1_clk);
1340         if (ret)
1341                 goto err_power_disable;
1342 
1343         if (IS_V4(core))
1344                 ret = clk_prepare_enable(core->core1_bus_clk);
1345 
1346         if (ret)
1347                 goto err_unprepare_core1;
1348 
1349         return venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, false);
1350 
1351 err_unprepare_core1:
1352         clk_disable_unprepare(core->core1_clk);
1353 err_power_disable:
1354         venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, false);
1355         return ret;
1356 }
1357 
1358 static const struct dev_pm_ops venc_pm_ops = {
1359         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1360                                 pm_runtime_force_resume)
1361         SET_RUNTIME_PM_OPS(venc_runtime_suspend, venc_runtime_resume, NULL)
1362 };
1363 
1364 static const struct of_device_id venc_dt_match[] = {
1365         { .compatible = "venus-encoder" },
1366         { }
1367 };
1368 MODULE_DEVICE_TABLE(of, venc_dt_match);
1369 
1370 static struct platform_driver qcom_venus_enc_driver = {
1371         .probe = venc_probe,
1372         .remove = venc_remove,
1373         .driver = {
1374                 .name = "qcom-venus-encoder",
1375                 .of_match_table = venc_dt_match,
1376                 .pm = &venc_pm_ops,
1377         },
1378 };
1379 module_platform_driver(qcom_venus_enc_driver);
1380 
1381 MODULE_ALIAS("platform:qcom-venus-encoder");
1382 MODULE_DESCRIPTION("Qualcomm Venus video encoder driver");
1383 MODULE_LICENSE("GPL v2");

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