1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * A virtual codec example device. 4 * 5 * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. 6 * 7 * This is a virtual codec device driver for testing the codec framework. 8 * It simulates a device that uses memory buffers for both source and 9 * destination and encodes or decodes the data. 10 */ 11 12 #include <linux/module.h> 13 #include <linux/delay.h> 14 #include <linux/fs.h> 15 #include <linux/sched.h> 16 #include <linux/slab.h> 17 18 #include <linux/platform_device.h> 19 #include <media/v4l2-mem2mem.h> 20 #include <media/v4l2-device.h> 21 #include <media/v4l2-ioctl.h> 22 #include <media/v4l2-ctrls.h> 23 #include <media/v4l2-event.h> 24 #include <media/videobuf2-vmalloc.h> 25 26 #include "codec-v4l2-fwht.h" 27 28 MODULE_DESCRIPTION("Virtual codec device"); 29 MODULE_AUTHOR("Hans Verkuil <hverkuil@kernel.org>"); 30 MODULE_LICENSE("GPL v2"); 31 32 static bool multiplanar; 33 module_param(multiplanar, bool, 0444); 34 MODULE_PARM_DESC(multiplanar, 35 " use multi-planar API instead of single-planar API"); 36 37 static unsigned int debug; 38 module_param(debug, uint, 0644); 39 MODULE_PARM_DESC(debug, " activates debug info"); 40 41 #define VICODEC_NAME "vicodec" 42 #define MAX_WIDTH 4096U 43 #define MIN_WIDTH 640U 44 #define MAX_HEIGHT 2160U 45 #define MIN_HEIGHT 360U 46 /* Recommended number of buffers for the stateful codecs */ 47 #define VICODEC_REC_BUFS 2 48 49 #define dprintk(dev, fmt, arg...) \ 50 v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) 51 52 53 struct pixfmt_info { 54 u32 id; 55 unsigned int bytesperline_mult; 56 unsigned int sizeimage_mult; 57 unsigned int sizeimage_div; 58 unsigned int luma_step; 59 unsigned int chroma_step; 60 /* Chroma plane subsampling */ 61 unsigned int width_div; 62 unsigned int height_div; 63 }; 64 65 static const struct v4l2_fwht_pixfmt_info pixfmt_fwht = { 66 V4L2_PIX_FMT_FWHT, 0, 3, 1, 1, 1, 1, 1, 0, 1 67 }; 68 69 static const struct v4l2_fwht_pixfmt_info pixfmt_stateless_fwht = { 70 V4L2_PIX_FMT_FWHT_STATELESS, 0, 3, 1, 1, 1, 1, 1, 0, 1 71 }; 72 73 static void vicodec_dev_release(struct device *dev) 74 { 75 } 76 77 static struct platform_device vicodec_pdev = { 78 .name = VICODEC_NAME, 79 .dev.release = vicodec_dev_release, 80 }; 81 82 /* Per-queue, driver-specific private data */ 83 struct vicodec_q_data { 84 unsigned int coded_width; 85 unsigned int coded_height; 86 unsigned int visible_width; 87 unsigned int visible_height; 88 unsigned int sizeimage; 89 unsigned int vb2_sizeimage; 90 unsigned int sequence; 91 const struct v4l2_fwht_pixfmt_info *info; 92 }; 93 94 enum { 95 V4L2_M2M_SRC = 0, 96 V4L2_M2M_DST = 1, 97 }; 98 99 struct vicodec_dev_instance { 100 struct video_device vfd; 101 struct mutex mutex; 102 spinlock_t lock; 103 struct v4l2_m2m_dev *m2m_dev; 104 }; 105 106 struct vicodec_dev { 107 struct v4l2_device v4l2_dev; 108 struct vicodec_dev_instance stateful_enc; 109 struct vicodec_dev_instance stateful_dec; 110 struct vicodec_dev_instance stateless_dec; 111 #ifdef CONFIG_MEDIA_CONTROLLER 112 struct media_device mdev; 113 #endif 114 115 }; 116 117 struct vicodec_ctx { 118 struct v4l2_fh fh; 119 struct vicodec_dev *dev; 120 bool is_enc; 121 bool is_stateless; 122 spinlock_t *lock; 123 124 struct v4l2_ctrl_handler hdl; 125 126 /* Source and destination queue data */ 127 struct vicodec_q_data q_data[2]; 128 struct v4l2_fwht_state state; 129 130 u32 cur_buf_offset; 131 u32 comp_max_size; 132 u32 comp_size; 133 u32 header_size; 134 u32 comp_magic_cnt; 135 bool comp_has_frame; 136 bool comp_has_next_frame; 137 bool first_source_change_sent; 138 bool source_changed; 139 }; 140 141 static const struct v4l2_event vicodec_eos_event = { 142 .type = V4L2_EVENT_EOS 143 }; 144 145 static inline struct vicodec_ctx *file2ctx(struct file *file) 146 { 147 return container_of(file_to_v4l2_fh(file), struct vicodec_ctx, fh); 148 } 149 150 static struct vicodec_q_data *get_q_data(struct vicodec_ctx *ctx, 151 enum v4l2_buf_type type) 152 { 153 switch (type) { 154 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 155 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 156 return &ctx->q_data[V4L2_M2M_SRC]; 157 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 158 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 159 return &ctx->q_data[V4L2_M2M_DST]; 160 default: 161 break; 162 } 163 return NULL; 164 } 165 166 static void copy_cap_to_ref(const u8 *cap, const struct v4l2_fwht_pixfmt_info *info, 167 struct v4l2_fwht_state *state) 168 { 169 int plane_idx; 170 u8 *p_ref = state->ref_frame.buf; 171 unsigned int cap_stride = state->stride; 172 unsigned int ref_stride = state->ref_stride; 173 174 for (plane_idx = 0; plane_idx < info->planes_num; plane_idx++) { 175 int i; 176 unsigned int h_div = (plane_idx == 1 || plane_idx == 2) ? 177 info->height_div : 1; 178 const u8 *row_cap = cap; 179 u8 *row_ref = p_ref; 180 181 if (info->planes_num == 3 && plane_idx == 1) { 182 cap_stride /= 2; 183 ref_stride /= 2; 184 } 185 186 if (plane_idx == 1 && 187 (info->id == V4L2_PIX_FMT_NV24 || 188 info->id == V4L2_PIX_FMT_NV42)) { 189 cap_stride *= 2; 190 ref_stride *= 2; 191 } 192 193 for (i = 0; i < state->visible_height / h_div; i++) { 194 memcpy(row_ref, row_cap, ref_stride); 195 row_ref += ref_stride; 196 row_cap += cap_stride; 197 } 198 cap += cap_stride * (state->coded_height / h_div); 199 p_ref += ref_stride * (state->coded_height / h_div); 200 } 201 } 202 203 static bool validate_by_version(unsigned int flags, unsigned int version) 204 { 205 if (!version || version > V4L2_FWHT_VERSION) 206 return false; 207 208 if (version >= 2) { 209 unsigned int components_num = 1 + 210 ((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >> 211 V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); 212 unsigned int pixenc = flags & V4L2_FWHT_FL_PIXENC_MSK; 213 214 if (components_num == 0 || components_num > 4 || !pixenc) 215 return false; 216 } 217 return true; 218 } 219 220 static bool validate_stateless_params_flags(const struct v4l2_ctrl_fwht_params *params, 221 const struct v4l2_fwht_pixfmt_info *cur_info) 222 { 223 unsigned int width_div = 224 (params->flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; 225 unsigned int height_div = 226 (params->flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; 227 unsigned int components_num = 3; 228 unsigned int pixenc = 0; 229 230 if (params->version < 3) 231 return false; 232 233 components_num = 1 + ((params->flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >> 234 V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); 235 pixenc = (params->flags & V4L2_FWHT_FL_PIXENC_MSK); 236 if (v4l2_fwht_validate_fmt(cur_info, width_div, height_div, 237 components_num, pixenc)) 238 return true; 239 return false; 240 } 241 242 243 static void update_state_from_header(struct vicodec_ctx *ctx) 244 { 245 const struct fwht_cframe_hdr *p_hdr = &ctx->state.header; 246 247 ctx->state.visible_width = ntohl(p_hdr->width); 248 ctx->state.visible_height = ntohl(p_hdr->height); 249 ctx->state.colorspace = ntohl(p_hdr->colorspace); 250 ctx->state.xfer_func = ntohl(p_hdr->xfer_func); 251 ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc); 252 ctx->state.quantization = ntohl(p_hdr->quantization); 253 } 254 255 static int device_process(struct vicodec_ctx *ctx, 256 struct vb2_v4l2_buffer *src_vb, 257 struct vb2_v4l2_buffer *dst_vb) 258 { 259 struct vicodec_dev *dev = ctx->dev; 260 struct v4l2_fwht_state *state = &ctx->state; 261 u8 *p_src, *p_dst; 262 int ret = 0; 263 264 if (ctx->is_enc || ctx->is_stateless) 265 p_src = vb2_plane_vaddr(&src_vb->vb2_buf, 0); 266 else 267 p_src = state->compressed_frame; 268 269 if (ctx->is_stateless) { 270 struct media_request *src_req = src_vb->vb2_buf.req_obj.req; 271 272 ret = v4l2_ctrl_request_setup(src_req, &ctx->hdl); 273 if (ret) 274 return ret; 275 update_state_from_header(ctx); 276 277 ctx->state.header.size = 278 htonl(vb2_get_plane_payload(&src_vb->vb2_buf, 0)); 279 /* 280 * set the reference buffer from the reference timestamp 281 * only if this is a P-frame 282 */ 283 if (!(ntohl(ctx->state.header.flags) & V4L2_FWHT_FL_I_FRAME)) { 284 struct vb2_buffer *ref_vb2_buf; 285 struct vb2_queue *vq_cap = 286 v4l2_m2m_get_vq(ctx->fh.m2m_ctx, 287 V4L2_BUF_TYPE_VIDEO_CAPTURE); 288 289 ref_vb2_buf = vb2_find_buffer(vq_cap, ctx->state.ref_frame_ts); 290 if (!ref_vb2_buf) 291 return -EINVAL; 292 if (ref_vb2_buf->state == VB2_BUF_STATE_ERROR) 293 ret = -EINVAL; 294 ctx->state.ref_frame.buf = 295 vb2_plane_vaddr(ref_vb2_buf, 0); 296 } else { 297 ctx->state.ref_frame.buf = NULL; 298 } 299 } 300 p_dst = vb2_plane_vaddr(&dst_vb->vb2_buf, 0); 301 if (!p_src || !p_dst) { 302 v4l2_err(&dev->v4l2_dev, 303 "Acquiring kernel pointers to buffers failed\n"); 304 return -EFAULT; 305 } 306 307 if (ctx->is_enc) { 308 struct vicodec_q_data *q_src; 309 int comp_sz_or_errcode; 310 311 q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 312 state->info = q_src->info; 313 comp_sz_or_errcode = v4l2_fwht_encode(state, p_src, p_dst); 314 if (comp_sz_or_errcode < 0) 315 return comp_sz_or_errcode; 316 vb2_set_plane_payload(&dst_vb->vb2_buf, 0, comp_sz_or_errcode); 317 } else { 318 struct vicodec_q_data *q_dst; 319 unsigned int comp_frame_size = ntohl(ctx->state.header.size); 320 321 q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); 322 if (comp_frame_size > ctx->comp_max_size) 323 return -EINVAL; 324 state->info = q_dst->info; 325 ret = v4l2_fwht_decode(state, p_src, p_dst); 326 if (ret < 0) 327 return ret; 328 if (!ctx->is_stateless) 329 copy_cap_to_ref(p_dst, ctx->state.info, &ctx->state); 330 331 vb2_set_plane_payload(&dst_vb->vb2_buf, 0, q_dst->sizeimage); 332 if (ntohl(ctx->state.header.flags) & V4L2_FWHT_FL_I_FRAME) 333 dst_vb->flags |= V4L2_BUF_FLAG_KEYFRAME; 334 else 335 dst_vb->flags |= V4L2_BUF_FLAG_PFRAME; 336 } 337 return ret; 338 } 339 340 /* 341 * mem2mem callbacks 342 */ 343 static enum vb2_buffer_state get_next_header(struct vicodec_ctx *ctx, 344 u8 **pp, u32 sz) 345 { 346 static const u8 magic[] = { 347 0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff 348 }; 349 u8 *p = *pp; 350 u32 state; 351 u8 *header = (u8 *)&ctx->state.header; 352 353 state = VB2_BUF_STATE_DONE; 354 355 if (!ctx->header_size) { 356 state = VB2_BUF_STATE_ERROR; 357 for (; p < *pp + sz; p++) { 358 u32 copy; 359 360 p = memchr(p, magic[ctx->comp_magic_cnt], 361 *pp + sz - p); 362 if (!p) { 363 ctx->comp_magic_cnt = 0; 364 p = *pp + sz; 365 break; 366 } 367 copy = sizeof(magic) - ctx->comp_magic_cnt; 368 if (*pp + sz - p < copy) 369 copy = *pp + sz - p; 370 371 memcpy(header + ctx->comp_magic_cnt, p, copy); 372 ctx->comp_magic_cnt += copy; 373 if (!memcmp(header, magic, ctx->comp_magic_cnt)) { 374 p += copy; 375 state = VB2_BUF_STATE_DONE; 376 break; 377 } 378 ctx->comp_magic_cnt = 0; 379 } 380 if (ctx->comp_magic_cnt < sizeof(magic)) { 381 *pp = p; 382 return state; 383 } 384 ctx->header_size = sizeof(magic); 385 } 386 387 if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { 388 u32 copy = sizeof(struct fwht_cframe_hdr) - ctx->header_size; 389 390 if (*pp + sz - p < copy) 391 copy = *pp + sz - p; 392 393 memcpy(header + ctx->header_size, p, copy); 394 p += copy; 395 ctx->header_size += copy; 396 } 397 *pp = p; 398 return state; 399 } 400 401 /* device_run() - prepares and starts the device */ 402 static void device_run(void *priv) 403 { 404 struct vicodec_ctx *ctx = priv; 405 struct vicodec_dev *dev = ctx->dev; 406 struct vb2_v4l2_buffer *src_buf, *dst_buf; 407 struct vicodec_q_data *q_src, *q_dst; 408 u32 state; 409 struct media_request *src_req; 410 411 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); 412 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); 413 src_req = src_buf->vb2_buf.req_obj.req; 414 415 q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 416 q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); 417 418 state = VB2_BUF_STATE_DONE; 419 if (device_process(ctx, src_buf, dst_buf)) 420 state = VB2_BUF_STATE_ERROR; 421 else 422 dst_buf->sequence = q_dst->sequence++; 423 dst_buf->flags &= ~V4L2_BUF_FLAG_LAST; 424 v4l2_m2m_buf_copy_metadata(src_buf, dst_buf); 425 426 spin_lock(ctx->lock); 427 if (!ctx->comp_has_next_frame && 428 v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, src_buf)) { 429 dst_buf->flags |= V4L2_BUF_FLAG_LAST; 430 v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); 431 v4l2_m2m_mark_stopped(ctx->fh.m2m_ctx); 432 } 433 if (ctx->is_enc || ctx->is_stateless) { 434 src_buf->sequence = q_src->sequence++; 435 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); 436 v4l2_m2m_buf_done(src_buf, state); 437 } else if (vb2_get_plane_payload(&src_buf->vb2_buf, 0) == ctx->cur_buf_offset) { 438 src_buf->sequence = q_src->sequence++; 439 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); 440 v4l2_m2m_buf_done(src_buf, state); 441 ctx->cur_buf_offset = 0; 442 ctx->comp_has_next_frame = false; 443 } 444 v4l2_m2m_buf_done(dst_buf, state); 445 446 ctx->comp_size = 0; 447 ctx->header_size = 0; 448 ctx->comp_magic_cnt = 0; 449 ctx->comp_has_frame = false; 450 spin_unlock(ctx->lock); 451 if (ctx->is_stateless && src_req) 452 v4l2_ctrl_request_complete(src_req, &ctx->hdl); 453 454 if (ctx->is_enc) 455 v4l2_m2m_job_finish(dev->stateful_enc.m2m_dev, ctx->fh.m2m_ctx); 456 else if (ctx->is_stateless) 457 v4l2_m2m_job_finish(dev->stateless_dec.m2m_dev, 458 ctx->fh.m2m_ctx); 459 else 460 v4l2_m2m_job_finish(dev->stateful_dec.m2m_dev, ctx->fh.m2m_ctx); 461 } 462 463 static void job_remove_src_buf(struct vicodec_ctx *ctx, u32 state) 464 { 465 struct vb2_v4l2_buffer *src_buf; 466 struct vicodec_q_data *q_src; 467 468 q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 469 spin_lock(ctx->lock); 470 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); 471 src_buf->sequence = q_src->sequence++; 472 v4l2_m2m_buf_done(src_buf, state); 473 ctx->cur_buf_offset = 0; 474 spin_unlock(ctx->lock); 475 } 476 477 static const struct v4l2_fwht_pixfmt_info * 478 info_from_header(const struct fwht_cframe_hdr *p_hdr) 479 { 480 unsigned int flags = ntohl(p_hdr->flags); 481 unsigned int width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; 482 unsigned int height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; 483 unsigned int components_num = 3; 484 unsigned int pixenc = 0; 485 unsigned int version = ntohl(p_hdr->version); 486 487 if (version >= 2) { 488 components_num = 1 + ((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >> 489 V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); 490 pixenc = (flags & V4L2_FWHT_FL_PIXENC_MSK); 491 } 492 return v4l2_fwht_find_nth_fmt(width_div, height_div, 493 components_num, pixenc, 0); 494 } 495 496 static bool is_header_valid(const struct fwht_cframe_hdr *p_hdr) 497 { 498 const struct v4l2_fwht_pixfmt_info *info; 499 unsigned int w = ntohl(p_hdr->width); 500 unsigned int h = ntohl(p_hdr->height); 501 unsigned int version = ntohl(p_hdr->version); 502 unsigned int flags = ntohl(p_hdr->flags); 503 504 if (w < MIN_WIDTH || w > MAX_WIDTH || h < MIN_HEIGHT || h > MAX_HEIGHT) 505 return false; 506 507 if (!validate_by_version(flags, version)) 508 return false; 509 510 info = info_from_header(p_hdr); 511 if (!info) 512 return false; 513 return true; 514 } 515 516 static void update_capture_data_from_header(struct vicodec_ctx *ctx) 517 { 518 struct vicodec_q_data *q_dst = get_q_data(ctx, 519 V4L2_BUF_TYPE_VIDEO_CAPTURE); 520 const struct fwht_cframe_hdr *p_hdr = &ctx->state.header; 521 const struct v4l2_fwht_pixfmt_info *info = info_from_header(p_hdr); 522 unsigned int flags = ntohl(p_hdr->flags); 523 unsigned int hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; 524 unsigned int hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; 525 526 /* 527 * This function should not be used by a stateless codec since 528 * it changes values in q_data that are not request specific 529 */ 530 WARN_ON(ctx->is_stateless); 531 532 q_dst->info = info; 533 q_dst->visible_width = ntohl(p_hdr->width); 534 q_dst->visible_height = ntohl(p_hdr->height); 535 q_dst->coded_width = vic_round_dim(q_dst->visible_width, hdr_width_div); 536 q_dst->coded_height = vic_round_dim(q_dst->visible_height, 537 hdr_height_div); 538 539 q_dst->sizeimage = q_dst->coded_width * q_dst->coded_height * 540 q_dst->info->sizeimage_mult / q_dst->info->sizeimage_div; 541 ctx->state.colorspace = ntohl(p_hdr->colorspace); 542 543 ctx->state.xfer_func = ntohl(p_hdr->xfer_func); 544 ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc); 545 ctx->state.quantization = ntohl(p_hdr->quantization); 546 } 547 548 static void set_last_buffer(struct vb2_v4l2_buffer *dst_buf, 549 const struct vb2_v4l2_buffer *src_buf, 550 struct vicodec_ctx *ctx) 551 { 552 struct vicodec_q_data *q_dst = get_q_data(ctx, 553 V4L2_BUF_TYPE_VIDEO_CAPTURE); 554 555 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0); 556 dst_buf->sequence = q_dst->sequence++; 557 558 v4l2_m2m_buf_copy_metadata(src_buf, dst_buf); 559 dst_buf->flags |= V4L2_BUF_FLAG_LAST; 560 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE); 561 } 562 563 static int job_ready(void *priv) 564 { 565 static const u8 magic[] = { 566 0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff 567 }; 568 struct vicodec_ctx *ctx = priv; 569 struct vb2_v4l2_buffer *src_buf; 570 u8 *p_src; 571 u8 *p; 572 u32 sz; 573 u32 state; 574 struct vicodec_q_data *q_dst = get_q_data(ctx, 575 V4L2_BUF_TYPE_VIDEO_CAPTURE); 576 unsigned int flags; 577 unsigned int hdr_width_div; 578 unsigned int hdr_height_div; 579 unsigned int max_to_copy; 580 unsigned int comp_frame_size; 581 582 if (ctx->source_changed) 583 return 0; 584 if (ctx->is_stateless || ctx->is_enc || ctx->comp_has_frame) 585 return 1; 586 587 restart: 588 ctx->comp_has_next_frame = false; 589 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); 590 if (!src_buf) 591 return 0; 592 p_src = vb2_plane_vaddr(&src_buf->vb2_buf, 0); 593 sz = vb2_get_plane_payload(&src_buf->vb2_buf, 0); 594 p = p_src + ctx->cur_buf_offset; 595 596 state = VB2_BUF_STATE_DONE; 597 598 if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { 599 state = get_next_header(ctx, &p, p_src + sz - p); 600 if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { 601 if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, 602 src_buf)) 603 return 1; 604 job_remove_src_buf(ctx, state); 605 goto restart; 606 } 607 } 608 609 comp_frame_size = ntohl(ctx->state.header.size); 610 611 /* 612 * The current scanned frame might be the first frame of a new 613 * resolution so its size might be larger than ctx->comp_max_size. 614 * In that case it is copied up to the current buffer capacity and 615 * the copy will continue after allocating new large enough buffer 616 * when restreaming 617 */ 618 max_to_copy = min(comp_frame_size, ctx->comp_max_size); 619 620 if (ctx->comp_size < max_to_copy) { 621 u32 copy = max_to_copy - ctx->comp_size; 622 623 if (copy > p_src + sz - p) 624 copy = p_src + sz - p; 625 626 memcpy(ctx->state.compressed_frame + ctx->comp_size, 627 p, copy); 628 p += copy; 629 ctx->comp_size += copy; 630 if (ctx->comp_size < max_to_copy) { 631 if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, 632 src_buf)) 633 return 1; 634 job_remove_src_buf(ctx, state); 635 goto restart; 636 } 637 } 638 ctx->cur_buf_offset = p - p_src; 639 if (ctx->comp_size == comp_frame_size) 640 ctx->comp_has_frame = true; 641 ctx->comp_has_next_frame = false; 642 if (ctx->comp_has_frame && sz - ctx->cur_buf_offset >= 643 sizeof(struct fwht_cframe_hdr)) { 644 struct fwht_cframe_hdr *p_hdr = (struct fwht_cframe_hdr *)p; 645 u32 frame_size = ntohl(p_hdr->size); 646 u32 remaining = sz - ctx->cur_buf_offset - sizeof(*p_hdr); 647 648 if (!memcmp(p, magic, sizeof(magic))) 649 ctx->comp_has_next_frame = remaining >= frame_size; 650 } 651 /* 652 * if the header is invalid the device_run will just drop the frame 653 * with an error 654 */ 655 if (!is_header_valid(&ctx->state.header) && ctx->comp_has_frame) 656 return 1; 657 flags = ntohl(ctx->state.header.flags); 658 hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; 659 hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; 660 661 if (ntohl(ctx->state.header.width) != q_dst->visible_width || 662 ntohl(ctx->state.header.height) != q_dst->visible_height || 663 !q_dst->info || 664 hdr_width_div != q_dst->info->width_div || 665 hdr_height_div != q_dst->info->height_div) { 666 static const struct v4l2_event rs_event = { 667 .type = V4L2_EVENT_SOURCE_CHANGE, 668 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, 669 }; 670 671 struct vb2_v4l2_buffer *dst_buf = 672 v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); 673 674 update_capture_data_from_header(ctx); 675 v4l2_event_queue_fh(&ctx->fh, &rs_event); 676 set_last_buffer(dst_buf, src_buf, ctx); 677 ctx->source_changed = true; 678 return 0; 679 } 680 return 1; 681 } 682 683 /* 684 * video ioctls 685 */ 686 687 static const struct v4l2_fwht_pixfmt_info *find_fmt(u32 fmt) 688 { 689 const struct v4l2_fwht_pixfmt_info *info = 690 v4l2_fwht_find_pixfmt(fmt); 691 692 if (!info) 693 info = v4l2_fwht_get_pixfmt(0); 694 return info; 695 } 696 697 static int vidioc_querycap(struct file *file, void *priv, 698 struct v4l2_capability *cap) 699 { 700 strscpy(cap->driver, VICODEC_NAME, sizeof(cap->driver)); 701 strscpy(cap->card, VICODEC_NAME, sizeof(cap->card)); 702 snprintf(cap->bus_info, sizeof(cap->bus_info), 703 "platform:%s", VICODEC_NAME); 704 return 0; 705 } 706 707 static int enum_fmt(struct v4l2_fmtdesc *f, struct vicodec_ctx *ctx, 708 bool is_out) 709 { 710 bool is_uncomp = (ctx->is_enc && is_out) || (!ctx->is_enc && !is_out); 711 712 if (V4L2_TYPE_IS_MULTIPLANAR(f->type) && !multiplanar) 713 return -EINVAL; 714 if (!V4L2_TYPE_IS_MULTIPLANAR(f->type) && multiplanar) 715 return -EINVAL; 716 717 if (is_uncomp) { 718 const struct v4l2_fwht_pixfmt_info *info = 719 get_q_data(ctx, f->type)->info; 720 721 if (ctx->is_enc || 722 !vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q)) 723 info = v4l2_fwht_get_pixfmt(f->index); 724 else 725 info = v4l2_fwht_find_nth_fmt(info->width_div, 726 info->height_div, 727 info->components_num, 728 info->pixenc, 729 f->index); 730 if (!info) 731 return -EINVAL; 732 f->pixelformat = info->id; 733 } else { 734 if (f->index) 735 return -EINVAL; 736 f->pixelformat = ctx->is_stateless ? 737 V4L2_PIX_FMT_FWHT_STATELESS : V4L2_PIX_FMT_FWHT; 738 if (!ctx->is_enc && !ctx->is_stateless) 739 f->flags = V4L2_FMT_FLAG_DYN_RESOLUTION | 740 V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM; 741 } 742 return 0; 743 } 744 745 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 746 struct v4l2_fmtdesc *f) 747 { 748 struct vicodec_ctx *ctx = file2ctx(file); 749 750 return enum_fmt(f, ctx, false); 751 } 752 753 static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, 754 struct v4l2_fmtdesc *f) 755 { 756 struct vicodec_ctx *ctx = file2ctx(file); 757 758 return enum_fmt(f, ctx, true); 759 } 760 761 static int vidioc_g_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) 762 { 763 struct vicodec_q_data *q_data; 764 struct v4l2_pix_format_mplane *pix_mp; 765 struct v4l2_pix_format *pix; 766 const struct v4l2_fwht_pixfmt_info *info; 767 768 q_data = get_q_data(ctx, f->type); 769 info = q_data->info; 770 771 switch (f->type) { 772 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 773 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 774 if (multiplanar) 775 return -EINVAL; 776 pix = &f->fmt.pix; 777 pix->width = q_data->coded_width; 778 pix->height = q_data->coded_height; 779 pix->field = V4L2_FIELD_NONE; 780 pix->pixelformat = info->id; 781 pix->bytesperline = q_data->coded_width * 782 info->bytesperline_mult; 783 pix->sizeimage = q_data->sizeimage; 784 pix->colorspace = ctx->state.colorspace; 785 pix->xfer_func = ctx->state.xfer_func; 786 pix->ycbcr_enc = ctx->state.ycbcr_enc; 787 pix->quantization = ctx->state.quantization; 788 break; 789 790 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 791 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 792 if (!multiplanar) 793 return -EINVAL; 794 pix_mp = &f->fmt.pix_mp; 795 pix_mp->width = q_data->coded_width; 796 pix_mp->height = q_data->coded_height; 797 pix_mp->field = V4L2_FIELD_NONE; 798 pix_mp->pixelformat = info->id; 799 pix_mp->num_planes = 1; 800 pix_mp->plane_fmt[0].bytesperline = 801 q_data->coded_width * info->bytesperline_mult; 802 pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage; 803 pix_mp->colorspace = ctx->state.colorspace; 804 pix_mp->xfer_func = ctx->state.xfer_func; 805 pix_mp->ycbcr_enc = ctx->state.ycbcr_enc; 806 pix_mp->quantization = ctx->state.quantization; 807 break; 808 default: 809 return -EINVAL; 810 } 811 return 0; 812 } 813 814 static int vidioc_g_fmt_vid_out(struct file *file, void *priv, 815 struct v4l2_format *f) 816 { 817 return vidioc_g_fmt(file2ctx(file), f); 818 } 819 820 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 821 struct v4l2_format *f) 822 { 823 return vidioc_g_fmt(file2ctx(file), f); 824 } 825 826 static int vidioc_try_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) 827 { 828 struct v4l2_pix_format_mplane *pix_mp; 829 struct v4l2_pix_format *pix; 830 struct v4l2_plane_pix_format *plane; 831 const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ? 832 &pixfmt_stateless_fwht : &pixfmt_fwht; 833 834 switch (f->type) { 835 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 836 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 837 pix = &f->fmt.pix; 838 if (pix->pixelformat != V4L2_PIX_FMT_FWHT && 839 pix->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS) 840 info = find_fmt(pix->pixelformat); 841 842 pix->width = clamp(pix->width, MIN_WIDTH, MAX_WIDTH); 843 pix->width = vic_round_dim(pix->width, info->width_div); 844 845 pix->height = clamp(pix->height, MIN_HEIGHT, MAX_HEIGHT); 846 pix->height = vic_round_dim(pix->height, info->height_div); 847 848 pix->field = V4L2_FIELD_NONE; 849 pix->bytesperline = 850 pix->width * info->bytesperline_mult; 851 pix->sizeimage = pix->width * pix->height * 852 info->sizeimage_mult / info->sizeimage_div; 853 if (pix->pixelformat == V4L2_PIX_FMT_FWHT) 854 pix->sizeimage += sizeof(struct fwht_cframe_hdr); 855 break; 856 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 857 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 858 pix_mp = &f->fmt.pix_mp; 859 plane = pix_mp->plane_fmt; 860 if (pix_mp->pixelformat != V4L2_PIX_FMT_FWHT && 861 pix_mp->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS) 862 info = find_fmt(pix_mp->pixelformat); 863 pix_mp->num_planes = 1; 864 865 pix_mp->width = clamp(pix_mp->width, MIN_WIDTH, MAX_WIDTH); 866 pix_mp->width = vic_round_dim(pix_mp->width, info->width_div); 867 868 pix_mp->height = clamp(pix_mp->height, MIN_HEIGHT, MAX_HEIGHT); 869 pix_mp->height = vic_round_dim(pix_mp->height, 870 info->height_div); 871 872 pix_mp->field = V4L2_FIELD_NONE; 873 plane->bytesperline = 874 pix_mp->width * info->bytesperline_mult; 875 plane->sizeimage = pix_mp->width * pix_mp->height * 876 info->sizeimage_mult / info->sizeimage_div; 877 if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT) 878 plane->sizeimage += sizeof(struct fwht_cframe_hdr); 879 break; 880 default: 881 return -EINVAL; 882 } 883 884 return 0; 885 } 886 887 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 888 struct v4l2_format *f) 889 { 890 struct vicodec_ctx *ctx = file2ctx(file); 891 struct v4l2_pix_format_mplane *pix_mp; 892 struct v4l2_pix_format *pix; 893 894 switch (f->type) { 895 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 896 if (multiplanar) 897 return -EINVAL; 898 pix = &f->fmt.pix; 899 pix->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : 900 find_fmt(f->fmt.pix.pixelformat)->id; 901 pix->colorspace = ctx->state.colorspace; 902 pix->xfer_func = ctx->state.xfer_func; 903 pix->ycbcr_enc = ctx->state.ycbcr_enc; 904 pix->quantization = ctx->state.quantization; 905 break; 906 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 907 if (!multiplanar) 908 return -EINVAL; 909 pix_mp = &f->fmt.pix_mp; 910 pix_mp->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : 911 find_fmt(pix_mp->pixelformat)->id; 912 pix_mp->colorspace = ctx->state.colorspace; 913 pix_mp->xfer_func = ctx->state.xfer_func; 914 pix_mp->ycbcr_enc = ctx->state.ycbcr_enc; 915 pix_mp->quantization = ctx->state.quantization; 916 break; 917 default: 918 return -EINVAL; 919 } 920 921 return vidioc_try_fmt(ctx, f); 922 } 923 924 static int vidioc_try_fmt_vid_out(struct file *file, void *priv, 925 struct v4l2_format *f) 926 { 927 struct vicodec_ctx *ctx = file2ctx(file); 928 struct v4l2_pix_format_mplane *pix_mp; 929 struct v4l2_pix_format *pix; 930 931 switch (f->type) { 932 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 933 if (multiplanar) 934 return -EINVAL; 935 pix = &f->fmt.pix; 936 if (ctx->is_enc) 937 pix->pixelformat = find_fmt(pix->pixelformat)->id; 938 else if (ctx->is_stateless) 939 pix->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS; 940 else 941 pix->pixelformat = V4L2_PIX_FMT_FWHT; 942 if (!pix->colorspace) 943 pix->colorspace = V4L2_COLORSPACE_REC709; 944 break; 945 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 946 if (!multiplanar) 947 return -EINVAL; 948 pix_mp = &f->fmt.pix_mp; 949 if (ctx->is_enc) 950 pix_mp->pixelformat = find_fmt(pix_mp->pixelformat)->id; 951 else if (ctx->is_stateless) 952 pix_mp->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS; 953 else 954 pix_mp->pixelformat = V4L2_PIX_FMT_FWHT; 955 if (!pix_mp->colorspace) 956 pix_mp->colorspace = V4L2_COLORSPACE_REC709; 957 break; 958 default: 959 return -EINVAL; 960 } 961 962 return vidioc_try_fmt(ctx, f); 963 } 964 965 static int vidioc_s_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) 966 { 967 struct vicodec_q_data *q_data; 968 struct vb2_queue *vq; 969 bool fmt_changed = true; 970 struct v4l2_pix_format_mplane *pix_mp; 971 struct v4l2_pix_format *pix; 972 973 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); 974 975 q_data = get_q_data(ctx, f->type); 976 if (!q_data) 977 return -EINVAL; 978 979 switch (f->type) { 980 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 981 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 982 pix = &f->fmt.pix; 983 if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) 984 fmt_changed = 985 !q_data->info || 986 q_data->info->id != pix->pixelformat || 987 q_data->coded_width != pix->width || 988 q_data->coded_height != pix->height; 989 990 if (vb2_is_busy(vq) && fmt_changed) 991 return -EBUSY; 992 993 if (pix->pixelformat == V4L2_PIX_FMT_FWHT) 994 q_data->info = &pixfmt_fwht; 995 else if (pix->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS) 996 q_data->info = &pixfmt_stateless_fwht; 997 else 998 q_data->info = find_fmt(pix->pixelformat); 999 q_data->coded_width = pix->width; 1000 q_data->coded_height = pix->height; 1001 q_data->sizeimage = pix->sizeimage; 1002 break; 1003 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: 1004 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 1005 pix_mp = &f->fmt.pix_mp; 1006 if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) 1007 fmt_changed = 1008 !q_data->info || 1009 q_data->info->id != pix_mp->pixelformat || 1010 q_data->coded_width != pix_mp->width || 1011 q_data->coded_height != pix_mp->height; 1012 1013 if (vb2_is_busy(vq) && fmt_changed) 1014 return -EBUSY; 1015 1016 if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT) 1017 q_data->info = &pixfmt_fwht; 1018 else if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS) 1019 q_data->info = &pixfmt_stateless_fwht; 1020 else 1021 q_data->info = find_fmt(pix_mp->pixelformat); 1022 q_data->coded_width = pix_mp->width; 1023 q_data->coded_height = pix_mp->height; 1024 q_data->sizeimage = pix_mp->plane_fmt[0].sizeimage; 1025 break; 1026 default: 1027 return -EINVAL; 1028 } 1029 1030 dprintk(ctx->dev, 1031 "Setting format for type %d, coded wxh: %dx%d, fourcc: 0x%08x\n", 1032 f->type, q_data->coded_width, q_data->coded_height, 1033 q_data->info->id); 1034 1035 return 0; 1036 } 1037 1038 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1039 struct v4l2_format *f) 1040 { 1041 int ret; 1042 1043 ret = vidioc_try_fmt_vid_cap(file, priv, f); 1044 if (ret) 1045 return ret; 1046 1047 return vidioc_s_fmt(file2ctx(file), f); 1048 } 1049 1050 static int vidioc_s_fmt_vid_out(struct file *file, void *priv, 1051 struct v4l2_format *f) 1052 { 1053 struct vicodec_ctx *ctx = file2ctx(file); 1054 struct vicodec_q_data *q_data; 1055 struct vicodec_q_data *q_data_cap; 1056 struct v4l2_pix_format *pix; 1057 struct v4l2_pix_format_mplane *pix_mp; 1058 u32 coded_w = 0, coded_h = 0; 1059 unsigned int size = 0; 1060 int ret; 1061 1062 q_data = get_q_data(ctx, f->type); 1063 q_data_cap = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); 1064 1065 ret = vidioc_try_fmt_vid_out(file, priv, f); 1066 if (ret) 1067 return ret; 1068 1069 if (ctx->is_enc) { 1070 struct vb2_queue *vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); 1071 struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, 1072 V4L2_BUF_TYPE_VIDEO_CAPTURE); 1073 const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ? 1074 &pixfmt_stateless_fwht : &pixfmt_fwht; 1075 1076 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 1077 coded_w = f->fmt.pix.width; 1078 coded_h = f->fmt.pix.height; 1079 } else { 1080 coded_w = f->fmt.pix_mp.width; 1081 coded_h = f->fmt.pix_mp.height; 1082 } 1083 if (vb2_is_busy(vq) && (coded_w != q_data->coded_width || 1084 coded_h != q_data->coded_height)) 1085 return -EBUSY; 1086 size = coded_w * coded_h * 1087 info->sizeimage_mult / info->sizeimage_div; 1088 if (!ctx->is_stateless) 1089 size += sizeof(struct fwht_cframe_hdr); 1090 1091 if (vb2_is_busy(vq_cap) && size > q_data_cap->sizeimage) 1092 return -EBUSY; 1093 } 1094 1095 ret = vidioc_s_fmt(file2ctx(file), f); 1096 if (!ret) { 1097 if (ctx->is_enc) { 1098 q_data->visible_width = coded_w; 1099 q_data->visible_height = coded_h; 1100 q_data_cap->coded_width = coded_w; 1101 q_data_cap->coded_height = coded_h; 1102 q_data_cap->sizeimage = size; 1103 } 1104 1105 switch (f->type) { 1106 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 1107 pix = &f->fmt.pix; 1108 ctx->state.colorspace = pix->colorspace; 1109 ctx->state.xfer_func = pix->xfer_func; 1110 ctx->state.ycbcr_enc = pix->ycbcr_enc; 1111 ctx->state.quantization = pix->quantization; 1112 break; 1113 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: 1114 pix_mp = &f->fmt.pix_mp; 1115 ctx->state.colorspace = pix_mp->colorspace; 1116 ctx->state.xfer_func = pix_mp->xfer_func; 1117 ctx->state.ycbcr_enc = pix_mp->ycbcr_enc; 1118 ctx->state.quantization = pix_mp->quantization; 1119 break; 1120 default: 1121 break; 1122 } 1123 } 1124 return ret; 1125 } 1126 1127 static int vidioc_g_selection(struct file *file, void *priv, 1128 struct v4l2_selection *s) 1129 { 1130 struct vicodec_ctx *ctx = file2ctx(file); 1131 struct vicodec_q_data *q_data; 1132 1133 q_data = get_q_data(ctx, s->type); 1134 if (!q_data) 1135 return -EINVAL; 1136 /* 1137 * encoder supports only cropping on the OUTPUT buffer 1138 * decoder supports only composing on the CAPTURE buffer 1139 */ 1140 if (ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 1141 switch (s->target) { 1142 case V4L2_SEL_TGT_CROP: 1143 s->r.left = 0; 1144 s->r.top = 0; 1145 s->r.width = q_data->visible_width; 1146 s->r.height = q_data->visible_height; 1147 return 0; 1148 case V4L2_SEL_TGT_CROP_DEFAULT: 1149 case V4L2_SEL_TGT_CROP_BOUNDS: 1150 s->r.left = 0; 1151 s->r.top = 0; 1152 s->r.width = q_data->coded_width; 1153 s->r.height = q_data->coded_height; 1154 return 0; 1155 } 1156 } else if (!ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 1157 switch (s->target) { 1158 case V4L2_SEL_TGT_COMPOSE: 1159 s->r.left = 0; 1160 s->r.top = 0; 1161 s->r.width = q_data->visible_width; 1162 s->r.height = q_data->visible_height; 1163 return 0; 1164 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 1165 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 1166 s->r.left = 0; 1167 s->r.top = 0; 1168 s->r.width = q_data->coded_width; 1169 s->r.height = q_data->coded_height; 1170 return 0; 1171 } 1172 } 1173 return -EINVAL; 1174 } 1175 1176 static int vidioc_s_selection(struct file *file, void *priv, 1177 struct v4l2_selection *s) 1178 { 1179 struct vicodec_ctx *ctx = file2ctx(file); 1180 struct vicodec_q_data *q_data; 1181 1182 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 1183 return -EINVAL; 1184 1185 q_data = get_q_data(ctx, s->type); 1186 if (!q_data) 1187 return -EINVAL; 1188 1189 if (!ctx->is_enc || s->target != V4L2_SEL_TGT_CROP) 1190 return -EINVAL; 1191 1192 s->r.left = 0; 1193 s->r.top = 0; 1194 q_data->visible_width = clamp(s->r.width, MIN_WIDTH, 1195 q_data->coded_width); 1196 s->r.width = q_data->visible_width; 1197 q_data->visible_height = clamp(s->r.height, MIN_HEIGHT, 1198 q_data->coded_height); 1199 s->r.height = q_data->visible_height; 1200 return 0; 1201 } 1202 1203 static int vicodec_encoder_cmd(struct file *file, void *priv, 1204 struct v4l2_encoder_cmd *ec) 1205 { 1206 struct vicodec_ctx *ctx = file2ctx(file); 1207 int ret; 1208 1209 ret = v4l2_m2m_ioctl_try_encoder_cmd(file, priv, ec); 1210 if (ret < 0) 1211 return ret; 1212 1213 if (!vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q)) 1214 return 0; 1215 1216 ret = v4l2_m2m_ioctl_encoder_cmd(file, priv, ec); 1217 if (ret < 0) 1218 return ret; 1219 1220 if (ec->cmd == V4L2_ENC_CMD_STOP && 1221 v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) 1222 v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); 1223 1224 if (ec->cmd == V4L2_ENC_CMD_START && 1225 v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) 1226 vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q); 1227 1228 return 0; 1229 } 1230 1231 static int vicodec_decoder_cmd(struct file *file, void *priv, 1232 struct v4l2_decoder_cmd *dc) 1233 { 1234 struct vicodec_ctx *ctx = file2ctx(file); 1235 int ret; 1236 1237 /* 1238 * This ioctl should not be used with a stateless codec that doesn't 1239 * support holding buffers and the associated flush command. 1240 */ 1241 WARN_ON(ctx->is_stateless); 1242 1243 ret = v4l2_m2m_ioctl_try_decoder_cmd(file, priv, dc); 1244 if (ret < 0) 1245 return ret; 1246 1247 if (!vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q)) 1248 return 0; 1249 1250 ret = v4l2_m2m_ioctl_decoder_cmd(file, priv, dc); 1251 if (ret < 0) 1252 return ret; 1253 1254 if (dc->cmd == V4L2_DEC_CMD_STOP && 1255 v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) 1256 v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); 1257 1258 if (dc->cmd == V4L2_DEC_CMD_START && 1259 v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) 1260 vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q); 1261 1262 return 0; 1263 } 1264 1265 static int vicodec_enum_framesizes(struct file *file, void *priv, 1266 struct v4l2_frmsizeenum *fsize) 1267 { 1268 switch (fsize->pixel_format) { 1269 case V4L2_PIX_FMT_FWHT_STATELESS: 1270 break; 1271 case V4L2_PIX_FMT_FWHT: 1272 break; 1273 default: 1274 if (find_fmt(fsize->pixel_format)->id == fsize->pixel_format) 1275 break; 1276 return -EINVAL; 1277 } 1278 1279 if (fsize->index) 1280 return -EINVAL; 1281 1282 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 1283 1284 fsize->stepwise.min_width = MIN_WIDTH; 1285 fsize->stepwise.max_width = MAX_WIDTH; 1286 fsize->stepwise.step_width = 8; 1287 fsize->stepwise.min_height = MIN_HEIGHT; 1288 fsize->stepwise.max_height = MAX_HEIGHT; 1289 fsize->stepwise.step_height = 8; 1290 1291 return 0; 1292 } 1293 1294 static int vicodec_subscribe_event(struct v4l2_fh *fh, 1295 const struct v4l2_event_subscription *sub) 1296 { 1297 struct vicodec_ctx *ctx = container_of(fh, struct vicodec_ctx, fh); 1298 1299 switch (sub->type) { 1300 case V4L2_EVENT_SOURCE_CHANGE: 1301 if (ctx->is_enc) 1302 return -EINVAL; 1303 fallthrough; 1304 case V4L2_EVENT_EOS: 1305 if (ctx->is_stateless) 1306 return -EINVAL; 1307 return v4l2_event_subscribe(fh, sub, 0, NULL); 1308 default: 1309 return v4l2_ctrl_subscribe_event(fh, sub); 1310 } 1311 } 1312 1313 static const struct v4l2_ioctl_ops vicodec_ioctl_ops = { 1314 .vidioc_querycap = vidioc_querycap, 1315 1316 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1317 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1318 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1319 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1320 1321 .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap, 1322 .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap, 1323 .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt_vid_cap, 1324 1325 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, 1326 .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, 1327 .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, 1328 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, 1329 1330 .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt_vid_out, 1331 .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out, 1332 .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt_vid_out, 1333 1334 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, 1335 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 1336 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 1337 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 1338 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, 1339 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 1340 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 1341 .vidioc_remove_bufs = v4l2_m2m_ioctl_remove_bufs, 1342 1343 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 1344 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 1345 1346 .vidioc_g_selection = vidioc_g_selection, 1347 .vidioc_s_selection = vidioc_s_selection, 1348 1349 .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd, 1350 .vidioc_encoder_cmd = vicodec_encoder_cmd, 1351 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd, 1352 .vidioc_decoder_cmd = vicodec_decoder_cmd, 1353 .vidioc_enum_framesizes = vicodec_enum_framesizes, 1354 1355 .vidioc_subscribe_event = vicodec_subscribe_event, 1356 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1357 }; 1358 1359 1360 /* 1361 * Queue operations 1362 */ 1363 1364 static int vicodec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, 1365 unsigned int *nplanes, unsigned int sizes[], 1366 struct device *alloc_devs[]) 1367 { 1368 struct vicodec_ctx *ctx = vb2_get_drv_priv(vq); 1369 struct vicodec_q_data *q_data = get_q_data(ctx, vq->type); 1370 unsigned int size = q_data->sizeimage; 1371 1372 if (*nplanes) 1373 return sizes[0] < size ? -EINVAL : 0; 1374 1375 *nplanes = 1; 1376 sizes[0] = size; 1377 q_data->vb2_sizeimage = size; 1378 return 0; 1379 } 1380 1381 static int vicodec_buf_out_validate(struct vb2_buffer *vb) 1382 { 1383 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 1384 1385 vbuf->field = V4L2_FIELD_NONE; 1386 return 0; 1387 } 1388 1389 static int vicodec_buf_prepare(struct vb2_buffer *vb) 1390 { 1391 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 1392 struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 1393 struct vicodec_q_data *q_data; 1394 1395 dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type); 1396 1397 q_data = get_q_data(ctx, vb->vb2_queue->type); 1398 if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) { 1399 if (vbuf->field == V4L2_FIELD_ANY) 1400 vbuf->field = V4L2_FIELD_NONE; 1401 if (vbuf->field != V4L2_FIELD_NONE) { 1402 dprintk(ctx->dev, "%s field isn't supported\n", 1403 __func__); 1404 return -EINVAL; 1405 } 1406 } 1407 1408 if (vb2_plane_size(vb, 0) < q_data->vb2_sizeimage) { 1409 dprintk(ctx->dev, 1410 "%s data will not fit into plane (%lu < %lu)\n", 1411 __func__, vb2_plane_size(vb, 0), 1412 (long)q_data->vb2_sizeimage); 1413 return -EINVAL; 1414 } 1415 1416 return 0; 1417 } 1418 1419 static void vicodec_buf_queue(struct vb2_buffer *vb) 1420 { 1421 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 1422 struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 1423 unsigned int sz = vb2_get_plane_payload(&vbuf->vb2_buf, 0); 1424 u8 *p_src = vb2_plane_vaddr(&vbuf->vb2_buf, 0); 1425 u8 *p = p_src; 1426 struct vb2_queue *vq_out = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, 1427 V4L2_BUF_TYPE_VIDEO_OUTPUT); 1428 struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, 1429 V4L2_BUF_TYPE_VIDEO_CAPTURE); 1430 bool header_valid = false; 1431 static const struct v4l2_event rs_event = { 1432 .type = V4L2_EVENT_SOURCE_CHANGE, 1433 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, 1434 }; 1435 1436 if (V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) && 1437 vb2_is_streaming(vb->vb2_queue) && 1438 v4l2_m2m_dst_buf_is_last(ctx->fh.m2m_ctx)) { 1439 unsigned int i; 1440 1441 for (i = 0; i < vb->num_planes; i++) 1442 vb2_set_plane_payload(vb, i, 0); 1443 1444 vbuf->field = V4L2_FIELD_NONE; 1445 vbuf->sequence = 1446 get_q_data(ctx, vb->vb2_queue->type)->sequence++; 1447 1448 v4l2_m2m_last_buffer_done(ctx->fh.m2m_ctx, vbuf); 1449 v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); 1450 return; 1451 } 1452 1453 /* buf_queue handles only the first source change event */ 1454 if (ctx->first_source_change_sent) { 1455 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); 1456 return; 1457 } 1458 1459 /* 1460 * if both queues are streaming, the source change event is 1461 * handled in job_ready 1462 */ 1463 if (vb2_is_streaming(vq_cap) && vb2_is_streaming(vq_out)) { 1464 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); 1465 return; 1466 } 1467 1468 /* 1469 * source change event is relevant only for the stateful decoder 1470 * in the compressed stream 1471 */ 1472 if (ctx->is_stateless || ctx->is_enc || 1473 V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type)) { 1474 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); 1475 return; 1476 } 1477 1478 do { 1479 enum vb2_buffer_state state = 1480 get_next_header(ctx, &p, p_src + sz - p); 1481 1482 if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { 1483 v4l2_m2m_buf_done(vbuf, state); 1484 return; 1485 } 1486 header_valid = is_header_valid(&ctx->state.header); 1487 /* 1488 * p points right after the end of the header in the 1489 * buffer. If the header is invalid we set p to point 1490 * to the next byte after the start of the header 1491 */ 1492 if (!header_valid) { 1493 p = p - sizeof(struct fwht_cframe_hdr) + 1; 1494 if (p < p_src) 1495 p = p_src; 1496 ctx->header_size = 0; 1497 ctx->comp_magic_cnt = 0; 1498 } 1499 1500 } while (!header_valid); 1501 1502 ctx->cur_buf_offset = p - p_src; 1503 update_capture_data_from_header(ctx); 1504 ctx->first_source_change_sent = true; 1505 v4l2_event_queue_fh(&ctx->fh, &rs_event); 1506 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); 1507 } 1508 1509 static void vicodec_return_bufs(struct vb2_queue *q, u32 state) 1510 { 1511 struct vicodec_ctx *ctx = vb2_get_drv_priv(q); 1512 struct vb2_v4l2_buffer *vbuf; 1513 1514 for (;;) { 1515 if (V4L2_TYPE_IS_OUTPUT(q->type)) 1516 vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); 1517 else 1518 vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); 1519 if (vbuf == NULL) 1520 return; 1521 v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req, 1522 &ctx->hdl); 1523 spin_lock(ctx->lock); 1524 v4l2_m2m_buf_done(vbuf, state); 1525 spin_unlock(ctx->lock); 1526 } 1527 } 1528 1529 static unsigned int total_frame_size(struct vicodec_q_data *q_data) 1530 { 1531 unsigned int size; 1532 unsigned int chroma_div; 1533 1534 if (!q_data->info) { 1535 WARN_ON(1); 1536 return 0; 1537 } 1538 size = q_data->coded_width * q_data->coded_height; 1539 chroma_div = q_data->info->width_div * q_data->info->height_div; 1540 1541 if (q_data->info->components_num == 4) 1542 return 2 * size + 2 * (size / chroma_div); 1543 else if (q_data->info->components_num == 3) 1544 return size + 2 * (size / chroma_div); 1545 return size; 1546 } 1547 1548 static int vicodec_start_streaming(struct vb2_queue *q, 1549 unsigned int count) 1550 { 1551 struct vicodec_ctx *ctx = vb2_get_drv_priv(q); 1552 struct vicodec_q_data *q_data = get_q_data(ctx, q->type); 1553 struct v4l2_fwht_state *state = &ctx->state; 1554 const struct v4l2_fwht_pixfmt_info *info = q_data->info; 1555 unsigned int size = q_data->coded_width * q_data->coded_height; 1556 unsigned int chroma_div; 1557 unsigned int total_planes_size; 1558 u8 *new_comp_frame = NULL; 1559 1560 chroma_div = info->width_div * info->height_div; 1561 q_data->sequence = 0; 1562 1563 v4l2_m2m_update_start_streaming_state(ctx->fh.m2m_ctx, q); 1564 1565 state->gop_cnt = 0; 1566 1567 if ((V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) || 1568 (V4L2_TYPE_IS_CAPTURE(q->type) && ctx->is_enc)) 1569 return 0; 1570 1571 if (info->id == V4L2_PIX_FMT_FWHT || 1572 info->id == V4L2_PIX_FMT_FWHT_STATELESS) { 1573 vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED); 1574 return -EINVAL; 1575 } 1576 total_planes_size = total_frame_size(q_data); 1577 ctx->comp_max_size = total_planes_size; 1578 1579 state->visible_width = q_data->visible_width; 1580 state->visible_height = q_data->visible_height; 1581 state->coded_width = q_data->coded_width; 1582 state->coded_height = q_data->coded_height; 1583 state->stride = q_data->coded_width * 1584 info->bytesperline_mult; 1585 1586 if (ctx->is_stateless) { 1587 state->ref_stride = state->stride; 1588 return 0; 1589 } 1590 state->ref_stride = q_data->coded_width * info->luma_alpha_step; 1591 1592 state->ref_frame.buf = kvmalloc(total_planes_size, GFP_KERNEL); 1593 state->ref_frame.luma = state->ref_frame.buf; 1594 new_comp_frame = kvmalloc(ctx->comp_max_size, GFP_KERNEL); 1595 1596 if (!state->ref_frame.luma || !new_comp_frame) { 1597 kvfree(state->ref_frame.luma); 1598 kvfree(new_comp_frame); 1599 vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED); 1600 return -ENOMEM; 1601 } 1602 /* 1603 * if state->compressed_frame was already allocated then 1604 * it contain data of the first frame of the new resolution 1605 */ 1606 if (state->compressed_frame) { 1607 if (ctx->comp_size > ctx->comp_max_size) 1608 ctx->comp_size = ctx->comp_max_size; 1609 1610 memcpy(new_comp_frame, 1611 state->compressed_frame, ctx->comp_size); 1612 } 1613 1614 kvfree(state->compressed_frame); 1615 state->compressed_frame = new_comp_frame; 1616 1617 if (info->components_num < 3) { 1618 state->ref_frame.cb = NULL; 1619 state->ref_frame.cr = NULL; 1620 state->ref_frame.alpha = NULL; 1621 return 0; 1622 } 1623 1624 state->ref_frame.cb = state->ref_frame.luma + size; 1625 state->ref_frame.cr = state->ref_frame.cb + size / chroma_div; 1626 1627 if (info->components_num == 4) 1628 state->ref_frame.alpha = 1629 state->ref_frame.cr + size / chroma_div; 1630 else 1631 state->ref_frame.alpha = NULL; 1632 1633 return 0; 1634 } 1635 1636 static void vicodec_stop_streaming(struct vb2_queue *q) 1637 { 1638 struct vicodec_ctx *ctx = vb2_get_drv_priv(q); 1639 1640 vicodec_return_bufs(q, VB2_BUF_STATE_ERROR); 1641 1642 v4l2_m2m_update_stop_streaming_state(ctx->fh.m2m_ctx, q); 1643 1644 if (V4L2_TYPE_IS_OUTPUT(q->type) && 1645 v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) 1646 v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); 1647 1648 if (!ctx->is_enc && V4L2_TYPE_IS_OUTPUT(q->type)) 1649 ctx->first_source_change_sent = false; 1650 1651 if ((!V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) || 1652 (V4L2_TYPE_IS_OUTPUT(q->type) && ctx->is_enc)) { 1653 if (!ctx->is_stateless) 1654 kvfree(ctx->state.ref_frame.buf); 1655 ctx->state.ref_frame.buf = NULL; 1656 ctx->state.ref_frame.luma = NULL; 1657 ctx->comp_max_size = 0; 1658 ctx->source_changed = false; 1659 } 1660 if (V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) { 1661 ctx->cur_buf_offset = 0; 1662 ctx->comp_size = 0; 1663 ctx->header_size = 0; 1664 ctx->comp_magic_cnt = 0; 1665 ctx->comp_has_frame = false; 1666 ctx->comp_has_next_frame = false; 1667 } 1668 } 1669 1670 static void vicodec_buf_request_complete(struct vb2_buffer *vb) 1671 { 1672 struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 1673 1674 v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl); 1675 } 1676 1677 1678 static const struct vb2_ops vicodec_qops = { 1679 .queue_setup = vicodec_queue_setup, 1680 .buf_out_validate = vicodec_buf_out_validate, 1681 .buf_prepare = vicodec_buf_prepare, 1682 .buf_queue = vicodec_buf_queue, 1683 .buf_request_complete = vicodec_buf_request_complete, 1684 .start_streaming = vicodec_start_streaming, 1685 .stop_streaming = vicodec_stop_streaming, 1686 }; 1687 1688 static int queue_init(void *priv, struct vb2_queue *src_vq, 1689 struct vb2_queue *dst_vq) 1690 { 1691 struct vicodec_ctx *ctx = priv; 1692 int ret; 1693 1694 src_vq->type = (multiplanar ? 1695 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : 1696 V4L2_BUF_TYPE_VIDEO_OUTPUT); 1697 src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1698 src_vq->drv_priv = ctx; 1699 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); 1700 src_vq->ops = &vicodec_qops; 1701 src_vq->mem_ops = &vb2_vmalloc_memops; 1702 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 1703 if (ctx->is_enc) { 1704 src_vq->lock = &ctx->dev->stateful_enc.mutex; 1705 src_vq->min_reqbufs_allocation = VICODEC_REC_BUFS; 1706 } else if (ctx->is_stateless) { 1707 src_vq->lock = &ctx->dev->stateless_dec.mutex; 1708 } else { 1709 src_vq->lock = &ctx->dev->stateful_dec.mutex; 1710 } 1711 src_vq->supports_requests = ctx->is_stateless; 1712 src_vq->requires_requests = ctx->is_stateless; 1713 ret = vb2_queue_init(src_vq); 1714 if (ret) 1715 return ret; 1716 1717 dst_vq->type = (multiplanar ? 1718 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : 1719 V4L2_BUF_TYPE_VIDEO_CAPTURE); 1720 dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1721 dst_vq->max_num_buffers = 64; 1722 dst_vq->drv_priv = ctx; 1723 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); 1724 dst_vq->ops = &vicodec_qops; 1725 dst_vq->mem_ops = &vb2_vmalloc_memops; 1726 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 1727 dst_vq->lock = src_vq->lock; 1728 if (!ctx->is_stateless && !ctx->is_enc) 1729 dst_vq->min_reqbufs_allocation = VICODEC_REC_BUFS; 1730 1731 return vb2_queue_init(dst_vq); 1732 } 1733 1734 static int vicodec_try_ctrl(struct v4l2_ctrl *ctrl) 1735 { 1736 struct vicodec_ctx *ctx = container_of(ctrl->handler, 1737 struct vicodec_ctx, hdl); 1738 const struct v4l2_ctrl_fwht_params *params; 1739 struct vicodec_q_data *q_dst = get_q_data(ctx, 1740 V4L2_BUF_TYPE_VIDEO_CAPTURE); 1741 1742 switch (ctrl->id) { 1743 case V4L2_CID_STATELESS_FWHT_PARAMS: 1744 if (!q_dst->info) 1745 return -EINVAL; 1746 params = ctrl->p_new.p_fwht_params; 1747 if (params->width > q_dst->coded_width || 1748 params->width < MIN_WIDTH || 1749 params->height > q_dst->coded_height || 1750 params->height < MIN_HEIGHT) 1751 return -EINVAL; 1752 if (!validate_by_version(params->flags, params->version)) 1753 return -EINVAL; 1754 if (!validate_stateless_params_flags(params, q_dst->info)) 1755 return -EINVAL; 1756 return 0; 1757 default: 1758 return 0; 1759 } 1760 return 0; 1761 } 1762 1763 static void update_header_from_stateless_params(struct vicodec_ctx *ctx, 1764 const struct v4l2_ctrl_fwht_params *params) 1765 { 1766 struct fwht_cframe_hdr *p_hdr = &ctx->state.header; 1767 1768 p_hdr->magic1 = FWHT_MAGIC1; 1769 p_hdr->magic2 = FWHT_MAGIC2; 1770 p_hdr->version = htonl(params->version); 1771 p_hdr->width = htonl(params->width); 1772 p_hdr->height = htonl(params->height); 1773 p_hdr->flags = htonl(params->flags); 1774 p_hdr->colorspace = htonl(params->colorspace); 1775 p_hdr->xfer_func = htonl(params->xfer_func); 1776 p_hdr->ycbcr_enc = htonl(params->ycbcr_enc); 1777 p_hdr->quantization = htonl(params->quantization); 1778 } 1779 1780 static int vicodec_s_ctrl(struct v4l2_ctrl *ctrl) 1781 { 1782 struct vicodec_ctx *ctx = container_of(ctrl->handler, 1783 struct vicodec_ctx, hdl); 1784 const struct v4l2_ctrl_fwht_params *params; 1785 1786 switch (ctrl->id) { 1787 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 1788 ctx->state.gop_size = ctrl->val; 1789 return 0; 1790 case V4L2_CID_FWHT_I_FRAME_QP: 1791 ctx->state.i_frame_qp = ctrl->val; 1792 return 0; 1793 case V4L2_CID_FWHT_P_FRAME_QP: 1794 ctx->state.p_frame_qp = ctrl->val; 1795 return 0; 1796 case V4L2_CID_STATELESS_FWHT_PARAMS: 1797 params = ctrl->p_new.p_fwht_params; 1798 update_header_from_stateless_params(ctx, params); 1799 ctx->state.ref_frame_ts = params->backward_ref_ts; 1800 return 0; 1801 } 1802 return -EINVAL; 1803 } 1804 1805 static const struct v4l2_ctrl_ops vicodec_ctrl_ops = { 1806 .s_ctrl = vicodec_s_ctrl, 1807 .try_ctrl = vicodec_try_ctrl, 1808 }; 1809 1810 static const struct v4l2_ctrl_config vicodec_ctrl_stateless_state = { 1811 .ops = &vicodec_ctrl_ops, 1812 .id = V4L2_CID_STATELESS_FWHT_PARAMS, 1813 .elem_size = sizeof(struct v4l2_ctrl_fwht_params), 1814 }; 1815 1816 /* 1817 * File operations 1818 */ 1819 static int vicodec_open(struct file *file) 1820 { 1821 const struct v4l2_fwht_pixfmt_info *info = v4l2_fwht_get_pixfmt(0); 1822 struct video_device *vfd = video_devdata(file); 1823 struct vicodec_dev *dev = video_drvdata(file); 1824 struct vicodec_ctx *ctx = NULL; 1825 struct v4l2_ctrl_handler *hdl; 1826 unsigned int raw_size; 1827 unsigned int comp_size; 1828 int rc = 0; 1829 1830 if (mutex_lock_interruptible(vfd->lock)) 1831 return -ERESTARTSYS; 1832 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 1833 if (!ctx) { 1834 rc = -ENOMEM; 1835 goto open_unlock; 1836 } 1837 1838 if (vfd == &dev->stateful_enc.vfd) 1839 ctx->is_enc = true; 1840 else if (vfd == &dev->stateless_dec.vfd) 1841 ctx->is_stateless = true; 1842 1843 v4l2_fh_init(&ctx->fh, video_devdata(file)); 1844 ctx->dev = dev; 1845 hdl = &ctx->hdl; 1846 v4l2_ctrl_handler_init(hdl, 5); 1847 v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1848 1, 16, 1, 10); 1849 v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_I_FRAME_QP, 1850 1, 31, 1, 20); 1851 v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_P_FRAME_QP, 1852 1, 31, 1, 20); 1853 1854 if (ctx->is_stateless) 1855 v4l2_ctrl_new_custom(hdl, &vicodec_ctrl_stateless_state, NULL); 1856 else 1857 v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, ctx->is_enc ? 1858 V4L2_CID_MIN_BUFFERS_FOR_OUTPUT : 1859 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1860 VICODEC_REC_BUFS, VICODEC_REC_BUFS, 1, 1861 VICODEC_REC_BUFS); 1862 1863 if (hdl->error) { 1864 rc = hdl->error; 1865 v4l2_ctrl_handler_free(hdl); 1866 kfree(ctx); 1867 goto open_unlock; 1868 } 1869 ctx->fh.ctrl_handler = hdl; 1870 v4l2_ctrl_handler_setup(hdl); 1871 1872 if (ctx->is_enc) 1873 ctx->q_data[V4L2_M2M_SRC].info = info; 1874 else if (ctx->is_stateless) 1875 ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_stateless_fwht; 1876 else 1877 ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_fwht; 1878 ctx->q_data[V4L2_M2M_SRC].coded_width = 1280; 1879 ctx->q_data[V4L2_M2M_SRC].coded_height = 720; 1880 ctx->q_data[V4L2_M2M_SRC].visible_width = 1280; 1881 ctx->q_data[V4L2_M2M_SRC].visible_height = 720; 1882 raw_size = 1280 * 720 * info->sizeimage_mult / info->sizeimage_div; 1883 comp_size = 1280 * 720 * pixfmt_fwht.sizeimage_mult / 1884 pixfmt_fwht.sizeimage_div; 1885 if (ctx->is_enc) 1886 ctx->q_data[V4L2_M2M_SRC].sizeimage = raw_size; 1887 else if (ctx->is_stateless) 1888 ctx->q_data[V4L2_M2M_SRC].sizeimage = comp_size; 1889 else 1890 ctx->q_data[V4L2_M2M_SRC].sizeimage = 1891 comp_size + sizeof(struct fwht_cframe_hdr); 1892 ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC]; 1893 if (ctx->is_enc) { 1894 ctx->q_data[V4L2_M2M_DST].info = &pixfmt_fwht; 1895 ctx->q_data[V4L2_M2M_DST].sizeimage = 1896 comp_size + sizeof(struct fwht_cframe_hdr); 1897 } else { 1898 ctx->q_data[V4L2_M2M_DST].info = info; 1899 ctx->q_data[V4L2_M2M_DST].sizeimage = raw_size; 1900 } 1901 1902 ctx->state.colorspace = V4L2_COLORSPACE_REC709; 1903 1904 if (ctx->is_enc) { 1905 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_enc.m2m_dev, 1906 ctx, &queue_init); 1907 ctx->lock = &dev->stateful_enc.lock; 1908 } else if (ctx->is_stateless) { 1909 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateless_dec.m2m_dev, 1910 ctx, &queue_init); 1911 ctx->lock = &dev->stateless_dec.lock; 1912 } else { 1913 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_dec.m2m_dev, 1914 ctx, &queue_init); 1915 ctx->lock = &dev->stateful_dec.lock; 1916 } 1917 1918 if (IS_ERR(ctx->fh.m2m_ctx)) { 1919 rc = PTR_ERR(ctx->fh.m2m_ctx); 1920 1921 v4l2_ctrl_handler_free(hdl); 1922 v4l2_fh_exit(&ctx->fh); 1923 kfree(ctx); 1924 goto open_unlock; 1925 } 1926 1927 v4l2_fh_add(&ctx->fh, file); 1928 1929 open_unlock: 1930 mutex_unlock(vfd->lock); 1931 return rc; 1932 } 1933 1934 static int vicodec_release(struct file *file) 1935 { 1936 struct video_device *vfd = video_devdata(file); 1937 struct vicodec_ctx *ctx = file2ctx(file); 1938 1939 mutex_lock(vfd->lock); 1940 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); 1941 mutex_unlock(vfd->lock); 1942 v4l2_fh_del(&ctx->fh, file); 1943 v4l2_fh_exit(&ctx->fh); 1944 v4l2_ctrl_handler_free(&ctx->hdl); 1945 kvfree(ctx->state.compressed_frame); 1946 kfree(ctx); 1947 1948 return 0; 1949 } 1950 1951 static int vicodec_request_validate(struct media_request *req) 1952 { 1953 struct media_request_object *obj; 1954 struct v4l2_ctrl_handler *parent_hdl, *hdl; 1955 struct vicodec_ctx *ctx = NULL; 1956 struct v4l2_ctrl *ctrl; 1957 unsigned int count; 1958 1959 list_for_each_entry(obj, &req->objects, list) { 1960 struct vb2_buffer *vb; 1961 1962 if (vb2_request_object_is_buffer(obj)) { 1963 vb = container_of(obj, struct vb2_buffer, req_obj); 1964 ctx = vb2_get_drv_priv(vb->vb2_queue); 1965 1966 break; 1967 } 1968 } 1969 1970 if (!ctx) { 1971 pr_err("No buffer was provided with the request\n"); 1972 return -ENOENT; 1973 } 1974 1975 count = vb2_request_buffer_cnt(req); 1976 if (!count) { 1977 v4l2_info(&ctx->dev->v4l2_dev, 1978 "No buffer was provided with the request\n"); 1979 return -ENOENT; 1980 } else if (count > 1) { 1981 v4l2_info(&ctx->dev->v4l2_dev, 1982 "More than one buffer was provided with the request\n"); 1983 return -EINVAL; 1984 } 1985 1986 parent_hdl = &ctx->hdl; 1987 1988 hdl = v4l2_ctrl_request_hdl_find(req, parent_hdl); 1989 if (!hdl) { 1990 v4l2_info(&ctx->dev->v4l2_dev, "Missing codec control\n"); 1991 return -ENOENT; 1992 } 1993 ctrl = v4l2_ctrl_request_hdl_ctrl_find(hdl, 1994 vicodec_ctrl_stateless_state.id); 1995 v4l2_ctrl_request_hdl_put(hdl); 1996 if (!ctrl) { 1997 v4l2_info(&ctx->dev->v4l2_dev, 1998 "Missing required codec control\n"); 1999 return -ENOENT; 2000 } 2001 2002 return vb2_request_validate(req); 2003 } 2004 2005 static const struct v4l2_file_operations vicodec_fops = { 2006 .owner = THIS_MODULE, 2007 .open = vicodec_open, 2008 .release = vicodec_release, 2009 .poll = v4l2_m2m_fop_poll, 2010 .unlocked_ioctl = video_ioctl2, 2011 .mmap = v4l2_m2m_fop_mmap, 2012 }; 2013 2014 static const struct video_device vicodec_videodev = { 2015 .name = VICODEC_NAME, 2016 .vfl_dir = VFL_DIR_M2M, 2017 .fops = &vicodec_fops, 2018 .ioctl_ops = &vicodec_ioctl_ops, 2019 .minor = -1, 2020 .release = video_device_release_empty, 2021 }; 2022 2023 static const struct media_device_ops vicodec_m2m_media_ops = { 2024 .req_validate = vicodec_request_validate, 2025 .req_queue = v4l2_m2m_request_queue, 2026 }; 2027 2028 static const struct v4l2_m2m_ops m2m_ops = { 2029 .device_run = device_run, 2030 .job_ready = job_ready, 2031 }; 2032 2033 static int register_instance(struct vicodec_dev *dev, 2034 struct vicodec_dev_instance *dev_instance, 2035 const char *name, bool is_enc, bool is_stateless) 2036 { 2037 struct video_device *vfd; 2038 int ret; 2039 2040 spin_lock_init(&dev_instance->lock); 2041 mutex_init(&dev_instance->mutex); 2042 dev_instance->m2m_dev = v4l2_m2m_init(&m2m_ops); 2043 if (IS_ERR(dev_instance->m2m_dev)) { 2044 v4l2_err(&dev->v4l2_dev, "Failed to init vicodec enc device\n"); 2045 return PTR_ERR(dev_instance->m2m_dev); 2046 } 2047 2048 dev_instance->vfd = vicodec_videodev; 2049 vfd = &dev_instance->vfd; 2050 vfd->lock = &dev_instance->mutex; 2051 vfd->v4l2_dev = &dev->v4l2_dev; 2052 strscpy(vfd->name, name, sizeof(vfd->name)); 2053 vfd->device_caps = V4L2_CAP_STREAMING | 2054 (multiplanar ? V4L2_CAP_VIDEO_M2M_MPLANE : V4L2_CAP_VIDEO_M2M); 2055 if (is_enc || is_stateless) { 2056 v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD); 2057 v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD); 2058 } 2059 if (!is_enc) { 2060 v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD); 2061 v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD); 2062 } 2063 video_set_drvdata(vfd, dev); 2064 2065 ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0); 2066 if (ret) { 2067 v4l2_err(&dev->v4l2_dev, "Failed to register video device '%s'\n", name); 2068 v4l2_m2m_release(dev_instance->m2m_dev); 2069 return ret; 2070 } 2071 v4l2_info(&dev->v4l2_dev, "Device '%s' registered as /dev/video%d\n", 2072 name, vfd->num); 2073 return 0; 2074 } 2075 2076 static void vicodec_v4l2_dev_release(struct v4l2_device *v4l2_dev) 2077 { 2078 struct vicodec_dev *dev = container_of(v4l2_dev, struct vicodec_dev, v4l2_dev); 2079 2080 v4l2_device_unregister(&dev->v4l2_dev); 2081 v4l2_m2m_release(dev->stateful_enc.m2m_dev); 2082 v4l2_m2m_release(dev->stateful_dec.m2m_dev); 2083 v4l2_m2m_release(dev->stateless_dec.m2m_dev); 2084 #ifdef CONFIG_MEDIA_CONTROLLER 2085 media_device_cleanup(&dev->mdev); 2086 #endif 2087 kfree(dev); 2088 } 2089 2090 static int vicodec_probe(struct platform_device *pdev) 2091 { 2092 struct vicodec_dev *dev; 2093 int ret; 2094 2095 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 2096 if (!dev) 2097 return -ENOMEM; 2098 2099 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); 2100 if (ret) 2101 goto free_dev; 2102 2103 dev->v4l2_dev.release = vicodec_v4l2_dev_release; 2104 2105 #ifdef CONFIG_MEDIA_CONTROLLER 2106 dev->mdev.dev = &pdev->dev; 2107 strscpy(dev->mdev.model, "vicodec", sizeof(dev->mdev.model)); 2108 strscpy(dev->mdev.bus_info, "platform:vicodec", 2109 sizeof(dev->mdev.bus_info)); 2110 media_device_init(&dev->mdev); 2111 dev->mdev.ops = &vicodec_m2m_media_ops; 2112 dev->v4l2_dev.mdev = &dev->mdev; 2113 #endif 2114 2115 platform_set_drvdata(pdev, dev); 2116 2117 ret = register_instance(dev, &dev->stateful_enc, "stateful-encoder", 2118 true, false); 2119 if (ret) 2120 goto unreg_dev; 2121 2122 ret = register_instance(dev, &dev->stateful_dec, "stateful-decoder", 2123 false, false); 2124 if (ret) 2125 goto unreg_sf_enc; 2126 2127 ret = register_instance(dev, &dev->stateless_dec, "stateless-decoder", 2128 false, true); 2129 if (ret) 2130 goto unreg_sf_dec; 2131 2132 #ifdef CONFIG_MEDIA_CONTROLLER 2133 ret = v4l2_m2m_register_media_controller(dev->stateful_enc.m2m_dev, 2134 &dev->stateful_enc.vfd, 2135 MEDIA_ENT_F_PROC_VIDEO_ENCODER); 2136 if (ret) { 2137 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for enc\n"); 2138 goto unreg_m2m; 2139 } 2140 2141 ret = v4l2_m2m_register_media_controller(dev->stateful_dec.m2m_dev, 2142 &dev->stateful_dec.vfd, 2143 MEDIA_ENT_F_PROC_VIDEO_DECODER); 2144 if (ret) { 2145 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for dec\n"); 2146 goto unreg_m2m_sf_enc_mc; 2147 } 2148 2149 ret = v4l2_m2m_register_media_controller(dev->stateless_dec.m2m_dev, 2150 &dev->stateless_dec.vfd, 2151 MEDIA_ENT_F_PROC_VIDEO_DECODER); 2152 if (ret) { 2153 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for stateless dec\n"); 2154 goto unreg_m2m_sf_dec_mc; 2155 } 2156 2157 ret = media_device_register(&dev->mdev); 2158 if (ret) { 2159 v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n"); 2160 goto unreg_m2m_sl_dec_mc; 2161 } 2162 #endif 2163 return 0; 2164 2165 #ifdef CONFIG_MEDIA_CONTROLLER 2166 unreg_m2m_sl_dec_mc: 2167 v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev); 2168 unreg_m2m_sf_dec_mc: 2169 v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev); 2170 unreg_m2m_sf_enc_mc: 2171 v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev); 2172 unreg_m2m: 2173 video_unregister_device(&dev->stateless_dec.vfd); 2174 v4l2_m2m_release(dev->stateless_dec.m2m_dev); 2175 #endif 2176 unreg_sf_dec: 2177 video_unregister_device(&dev->stateful_dec.vfd); 2178 v4l2_m2m_release(dev->stateful_dec.m2m_dev); 2179 unreg_sf_enc: 2180 video_unregister_device(&dev->stateful_enc.vfd); 2181 v4l2_m2m_release(dev->stateful_enc.m2m_dev); 2182 unreg_dev: 2183 v4l2_device_unregister(&dev->v4l2_dev); 2184 free_dev: 2185 kfree(dev); 2186 2187 return ret; 2188 } 2189 2190 static void vicodec_remove(struct platform_device *pdev) 2191 { 2192 struct vicodec_dev *dev = platform_get_drvdata(pdev); 2193 2194 v4l2_info(&dev->v4l2_dev, "Removing " VICODEC_NAME); 2195 2196 #ifdef CONFIG_MEDIA_CONTROLLER 2197 media_device_unregister(&dev->mdev); 2198 v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev); 2199 v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev); 2200 v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev); 2201 #endif 2202 2203 video_unregister_device(&dev->stateful_enc.vfd); 2204 video_unregister_device(&dev->stateful_dec.vfd); 2205 video_unregister_device(&dev->stateless_dec.vfd); 2206 v4l2_device_put(&dev->v4l2_dev); 2207 } 2208 2209 static struct platform_driver vicodec_pdrv = { 2210 .probe = vicodec_probe, 2211 .remove = vicodec_remove, 2212 .driver = { 2213 .name = VICODEC_NAME, 2214 }, 2215 }; 2216 2217 static void __exit vicodec_exit(void) 2218 { 2219 platform_driver_unregister(&vicodec_pdrv); 2220 platform_device_unregister(&vicodec_pdev); 2221 } 2222 2223 static int __init vicodec_init(void) 2224 { 2225 int ret; 2226 2227 ret = platform_device_register(&vicodec_pdev); 2228 if (ret) 2229 return ret; 2230 2231 ret = platform_driver_register(&vicodec_pdrv); 2232 if (ret) 2233 platform_device_unregister(&vicodec_pdev); 2234 2235 return ret; 2236 } 2237 2238 module_init(vicodec_init); 2239 module_exit(vicodec_exit); 2240