1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2015-2016 MediaTek Inc. 4 * Author: Houlong Wei <houlong.wei@mediatek.com> 5 * Ming Hsiu Tsai <minghsiu.tsai@mediatek.com> 6 */ 7 8 #include <linux/device.h> 9 #include <linux/errno.h> 10 #include <linux/kernel.h> 11 #include <linux/pm_runtime.h> 12 #include <linux/slab.h> 13 #include <linux/workqueue.h> 14 #include <media/v4l2-event.h> 15 #include <media/v4l2-ioctl.h> 16 17 #include "mtk_mdp_core.h" 18 #include "mtk_mdp_m2m.h" 19 #include "mtk_mdp_regs.h" 20 #include "mtk_vpu.h" 21 22 23 /** 24 * struct mtk_mdp_pix_limit - image pixel size limits 25 * @org_w: source pixel width 26 * @org_h: source pixel height 27 * @target_rot_dis_w: pixel dst scaled width with the rotator is off 28 * @target_rot_dis_h: pixel dst scaled height with the rotator is off 29 * @target_rot_en_w: pixel dst scaled width with the rotator is on 30 * @target_rot_en_h: pixel dst scaled height with the rotator is on 31 */ 32 struct mtk_mdp_pix_limit { 33 u16 org_w; 34 u16 org_h; 35 u16 target_rot_dis_w; 36 u16 target_rot_dis_h; 37 u16 target_rot_en_w; 38 u16 target_rot_en_h; 39 }; 40 41 static struct mtk_mdp_pix_align mtk_mdp_size_align = { 42 .org_w = 16, 43 .org_h = 16, 44 .target_w = 2, 45 .target_h = 2, 46 }; 47 48 static const struct mtk_mdp_fmt mtk_mdp_formats[] = { 49 { 50 .pixelformat = V4L2_PIX_FMT_MT21C, 51 .depth = { 8, 4 }, 52 .row_depth = { 8, 8 }, 53 .num_planes = 2, 54 .num_comp = 2, 55 .align = &mtk_mdp_size_align, 56 .flags = MTK_MDP_FMT_FLAG_OUTPUT, 57 }, { 58 .pixelformat = V4L2_PIX_FMT_NV12M, 59 .depth = { 8, 4 }, 60 .row_depth = { 8, 8 }, 61 .num_planes = 2, 62 .num_comp = 2, 63 .flags = MTK_MDP_FMT_FLAG_OUTPUT | 64 MTK_MDP_FMT_FLAG_CAPTURE, 65 }, { 66 .pixelformat = V4L2_PIX_FMT_YUV420M, 67 .depth = { 8, 2, 2 }, 68 .row_depth = { 8, 4, 4 }, 69 .num_planes = 3, 70 .num_comp = 3, 71 .flags = MTK_MDP_FMT_FLAG_OUTPUT | 72 MTK_MDP_FMT_FLAG_CAPTURE, 73 }, { 74 .pixelformat = V4L2_PIX_FMT_YVU420, 75 .depth = { 12 }, 76 .row_depth = { 8 }, 77 .num_planes = 1, 78 .num_comp = 3, 79 .flags = MTK_MDP_FMT_FLAG_OUTPUT | 80 MTK_MDP_FMT_FLAG_CAPTURE, 81 } 82 }; 83 84 static struct mtk_mdp_pix_limit mtk_mdp_size_max = { 85 .target_rot_dis_w = 4096, 86 .target_rot_dis_h = 4096, 87 .target_rot_en_w = 4096, 88 .target_rot_en_h = 4096, 89 }; 90 91 static struct mtk_mdp_pix_limit mtk_mdp_size_min = { 92 .org_w = 16, 93 .org_h = 16, 94 .target_rot_dis_w = 16, 95 .target_rot_dis_h = 16, 96 .target_rot_en_w = 16, 97 .target_rot_en_h = 16, 98 }; 99 100 /* align size for normal raster scan pixel format */ 101 static struct mtk_mdp_pix_align mtk_mdp_rs_align = { 102 .org_w = 2, 103 .org_h = 2, 104 .target_w = 2, 105 .target_h = 2, 106 }; 107 108 static struct mtk_mdp_variant mtk_mdp_default_variant = { 109 .pix_max = &mtk_mdp_size_max, 110 .pix_min = &mtk_mdp_size_min, 111 .pix_align = &mtk_mdp_rs_align, 112 .h_scale_up_max = 32, 113 .v_scale_up_max = 32, 114 .h_scale_down_max = 32, 115 .v_scale_down_max = 128, 116 }; 117 118 static const struct mtk_mdp_fmt *mtk_mdp_find_fmt(u32 pixelformat, u32 type) 119 { 120 u32 i, flag; 121 122 flag = V4L2_TYPE_IS_OUTPUT(type) ? MTK_MDP_FMT_FLAG_OUTPUT : 123 MTK_MDP_FMT_FLAG_CAPTURE; 124 125 for (i = 0; i < ARRAY_SIZE(mtk_mdp_formats); ++i) { 126 if (!(mtk_mdp_formats[i].flags & flag)) 127 continue; 128 if (mtk_mdp_formats[i].pixelformat == pixelformat) 129 return &mtk_mdp_formats[i]; 130 } 131 return NULL; 132 } 133 134 static const struct mtk_mdp_fmt *mtk_mdp_find_fmt_by_index(u32 index, u32 type) 135 { 136 u32 i, flag, num = 0; 137 138 flag = V4L2_TYPE_IS_OUTPUT(type) ? MTK_MDP_FMT_FLAG_OUTPUT : 139 MTK_MDP_FMT_FLAG_CAPTURE; 140 141 for (i = 0; i < ARRAY_SIZE(mtk_mdp_formats); ++i) { 142 if (!(mtk_mdp_formats[i].flags & flag)) 143 continue; 144 if (index == num) 145 return &mtk_mdp_formats[i]; 146 num++; 147 } 148 return NULL; 149 } 150 151 static void mtk_mdp_bound_align_image(u32 *w, unsigned int wmin, 152 unsigned int wmax, unsigned int align_w, 153 u32 *h, unsigned int hmin, 154 unsigned int hmax, unsigned int align_h) 155 { 156 int org_w, org_h, step_w, step_h; 157 int walign, halign; 158 159 org_w = *w; 160 org_h = *h; 161 walign = ffs(align_w) - 1; 162 halign = ffs(align_h) - 1; 163 v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); 164 165 step_w = 1 << walign; 166 step_h = 1 << halign; 167 if (*w < org_w && (*w + step_w) <= wmax) 168 *w += step_w; 169 if (*h < org_h && (*h + step_h) <= hmax) 170 *h += step_h; 171 } 172 173 static const struct mtk_mdp_fmt *mtk_mdp_try_fmt_mplane(struct mtk_mdp_ctx *ctx, 174 struct v4l2_format *f) 175 { 176 struct mtk_mdp_dev *mdp = ctx->mdp_dev; 177 struct mtk_mdp_variant *variant = mdp->variant; 178 struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; 179 const struct mtk_mdp_fmt *fmt; 180 u32 max_w, max_h, align_w, align_h; 181 u32 min_w, min_h, org_w, org_h; 182 int i; 183 184 fmt = mtk_mdp_find_fmt(pix_mp->pixelformat, f->type); 185 if (!fmt) 186 fmt = mtk_mdp_find_fmt_by_index(0, f->type); 187 if (!fmt) { 188 dev_dbg(&ctx->mdp_dev->pdev->dev, 189 "pixelformat format 0x%X invalid\n", 190 pix_mp->pixelformat); 191 return NULL; 192 } 193 194 pix_mp->field = V4L2_FIELD_NONE; 195 pix_mp->pixelformat = fmt->pixelformat; 196 if (V4L2_TYPE_IS_CAPTURE(f->type)) { 197 pix_mp->colorspace = ctx->colorspace; 198 pix_mp->xfer_func = ctx->xfer_func; 199 pix_mp->ycbcr_enc = ctx->ycbcr_enc; 200 pix_mp->quantization = ctx->quant; 201 } 202 203 max_w = variant->pix_max->target_rot_dis_w; 204 max_h = variant->pix_max->target_rot_dis_h; 205 206 if (fmt->align == NULL) { 207 /* use default alignment */ 208 align_w = variant->pix_align->org_w; 209 align_h = variant->pix_align->org_h; 210 } else { 211 align_w = fmt->align->org_w; 212 align_h = fmt->align->org_h; 213 } 214 215 if (V4L2_TYPE_IS_OUTPUT(f->type)) { 216 min_w = variant->pix_min->org_w; 217 min_h = variant->pix_min->org_h; 218 } else { 219 min_w = variant->pix_min->target_rot_dis_w; 220 min_h = variant->pix_min->target_rot_dis_h; 221 } 222 223 mtk_mdp_dbg(2, "[%d] type:%d, wxh:%ux%u, align:%ux%u, max:%ux%u", 224 ctx->id, f->type, pix_mp->width, pix_mp->height, 225 align_w, align_h, max_w, max_h); 226 /* 227 * To check if image size is modified to adjust parameter against 228 * hardware abilities 229 */ 230 org_w = pix_mp->width; 231 org_h = pix_mp->height; 232 233 mtk_mdp_bound_align_image(&pix_mp->width, min_w, max_w, align_w, 234 &pix_mp->height, min_h, max_h, align_h); 235 236 if (org_w != pix_mp->width || org_h != pix_mp->height) 237 mtk_mdp_dbg(1, "[%d] size change:%ux%u to %ux%u", ctx->id, 238 org_w, org_h, pix_mp->width, pix_mp->height); 239 pix_mp->num_planes = fmt->num_planes; 240 241 for (i = 0; i < pix_mp->num_planes; ++i) { 242 int bpl = (pix_mp->width * fmt->row_depth[i]) / 8; 243 int sizeimage = (pix_mp->width * pix_mp->height * 244 fmt->depth[i]) / 8; 245 246 pix_mp->plane_fmt[i].bytesperline = bpl; 247 if (pix_mp->plane_fmt[i].sizeimage < sizeimage) 248 pix_mp->plane_fmt[i].sizeimage = sizeimage; 249 mtk_mdp_dbg(2, "[%d] p%d, bpl:%d, sizeimage:%u (%u)", ctx->id, 250 i, bpl, pix_mp->plane_fmt[i].sizeimage, sizeimage); 251 } 252 253 return fmt; 254 } 255 256 static struct mtk_mdp_frame *mtk_mdp_ctx_get_frame(struct mtk_mdp_ctx *ctx, 257 enum v4l2_buf_type type) 258 { 259 if (V4L2_TYPE_IS_OUTPUT(type)) 260 return &ctx->s_frame; 261 return &ctx->d_frame; 262 } 263 264 static void mtk_mdp_check_crop_change(u32 new_w, u32 new_h, u32 *w, u32 *h) 265 { 266 if (new_w != *w || new_h != *h) { 267 mtk_mdp_dbg(1, "size change:%dx%d to %dx%d", 268 *w, *h, new_w, new_h); 269 270 *w = new_w; 271 *h = new_h; 272 } 273 } 274 275 static int mtk_mdp_try_crop(struct mtk_mdp_ctx *ctx, u32 type, 276 struct v4l2_rect *r) 277 { 278 struct mtk_mdp_frame *frame; 279 struct mtk_mdp_dev *mdp = ctx->mdp_dev; 280 struct mtk_mdp_variant *variant = mdp->variant; 281 u32 align_w, align_h, new_w, new_h; 282 u32 min_w, min_h, max_w, max_h; 283 284 if (r->top < 0 || r->left < 0) { 285 dev_err(&ctx->mdp_dev->pdev->dev, 286 "doesn't support negative values for top & left\n"); 287 return -EINVAL; 288 } 289 290 mtk_mdp_dbg(2, "[%d] type:%d, set wxh:%dx%d", ctx->id, type, 291 r->width, r->height); 292 293 frame = mtk_mdp_ctx_get_frame(ctx, type); 294 max_w = frame->width; 295 max_h = frame->height; 296 new_w = r->width; 297 new_h = r->height; 298 299 if (V4L2_TYPE_IS_OUTPUT(type)) { 300 align_w = 1; 301 align_h = 1; 302 min_w = 64; 303 min_h = 32; 304 } else { 305 align_w = variant->pix_align->target_w; 306 align_h = variant->pix_align->target_h; 307 if (ctx->ctrls.rotate->val == 90 || 308 ctx->ctrls.rotate->val == 270) { 309 max_w = frame->height; 310 max_h = frame->width; 311 min_w = variant->pix_min->target_rot_en_w; 312 min_h = variant->pix_min->target_rot_en_h; 313 new_w = r->height; 314 new_h = r->width; 315 } else { 316 min_w = variant->pix_min->target_rot_dis_w; 317 min_h = variant->pix_min->target_rot_dis_h; 318 } 319 } 320 321 mtk_mdp_dbg(2, "[%d] align:%dx%d, min:%dx%d, new:%dx%d", ctx->id, 322 align_w, align_h, min_w, min_h, new_w, new_h); 323 324 mtk_mdp_bound_align_image(&new_w, min_w, max_w, align_w, 325 &new_h, min_h, max_h, align_h); 326 327 if (V4L2_TYPE_IS_CAPTURE(type) && 328 (ctx->ctrls.rotate->val == 90 || ctx->ctrls.rotate->val == 270)) 329 mtk_mdp_check_crop_change(new_h, new_w, 330 &r->width, &r->height); 331 else 332 mtk_mdp_check_crop_change(new_w, new_h, 333 &r->width, &r->height); 334 335 /* adjust left/top if cropping rectangle is out of bounds */ 336 /* Need to add code to algin left value with 2's multiple */ 337 if (r->left + new_w > max_w) 338 r->left = max_w - new_w; 339 if (r->top + new_h > max_h) 340 r->top = max_h - new_h; 341 342 if (r->left & 1) 343 r->left -= 1; 344 345 mtk_mdp_dbg(2, "[%d] crop l,t,w,h:%d,%d,%d,%d, max:%dx%d", ctx->id, 346 r->left, r->top, r->width, 347 r->height, max_w, max_h); 348 return 0; 349 } 350 351 static inline struct mtk_mdp_ctx *fh_to_ctx(struct v4l2_fh *fh) 352 { 353 return container_of(fh, struct mtk_mdp_ctx, fh); 354 } 355 356 static inline struct mtk_mdp_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl) 357 { 358 return container_of(ctrl->handler, struct mtk_mdp_ctx, ctrl_handler); 359 } 360 361 void mtk_mdp_ctx_state_lock_set(struct mtk_mdp_ctx *ctx, u32 state) 362 { 363 mutex_lock(&ctx->slock); 364 ctx->state |= state; 365 mutex_unlock(&ctx->slock); 366 } 367 368 static bool mtk_mdp_ctx_state_is_set(struct mtk_mdp_ctx *ctx, u32 mask) 369 { 370 bool ret; 371 372 mutex_lock(&ctx->slock); 373 ret = (ctx->state & mask) == mask; 374 mutex_unlock(&ctx->slock); 375 return ret; 376 } 377 378 static void mtk_mdp_set_frame_size(struct mtk_mdp_frame *frame, int width, 379 int height) 380 { 381 frame->width = width; 382 frame->height = height; 383 frame->crop.width = width; 384 frame->crop.height = height; 385 frame->crop.left = 0; 386 frame->crop.top = 0; 387 } 388 389 static int mtk_mdp_m2m_start_streaming(struct vb2_queue *q, unsigned int count) 390 { 391 struct mtk_mdp_ctx *ctx = q->drv_priv; 392 int ret; 393 394 ret = pm_runtime_resume_and_get(&ctx->mdp_dev->pdev->dev); 395 if (ret < 0) 396 mtk_mdp_dbg(1, "[%d] pm_runtime_resume_and_get failed:%d", 397 ctx->id, ret); 398 399 return ret; 400 } 401 402 static void *mtk_mdp_m2m_buf_remove(struct mtk_mdp_ctx *ctx, 403 enum v4l2_buf_type type) 404 { 405 if (V4L2_TYPE_IS_OUTPUT(type)) 406 return v4l2_m2m_src_buf_remove(ctx->m2m_ctx); 407 else 408 return v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); 409 } 410 411 static void mtk_mdp_m2m_stop_streaming(struct vb2_queue *q) 412 { 413 struct mtk_mdp_ctx *ctx = q->drv_priv; 414 struct vb2_buffer *vb; 415 416 vb = mtk_mdp_m2m_buf_remove(ctx, q->type); 417 while (vb != NULL) { 418 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_ERROR); 419 vb = mtk_mdp_m2m_buf_remove(ctx, q->type); 420 } 421 422 pm_runtime_put(&ctx->mdp_dev->pdev->dev); 423 } 424 425 /* The color format (num_planes) must be already configured. */ 426 static void mtk_mdp_prepare_addr(struct mtk_mdp_ctx *ctx, 427 struct vb2_buffer *vb, 428 struct mtk_mdp_frame *frame, 429 struct mtk_mdp_addr *addr) 430 { 431 u32 pix_size, planes, i; 432 433 pix_size = frame->width * frame->height; 434 planes = min_t(u32, frame->fmt->num_planes, ARRAY_SIZE(addr->addr)); 435 for (i = 0; i < planes; i++) 436 addr->addr[i] = vb2_dma_contig_plane_dma_addr(vb, i); 437 438 if (planes == 1) { 439 if (frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420) { 440 addr->addr[1] = (dma_addr_t)(addr->addr[0] + pix_size); 441 addr->addr[2] = (dma_addr_t)(addr->addr[1] + 442 (pix_size >> 2)); 443 } else { 444 dev_err(&ctx->mdp_dev->pdev->dev, 445 "Invalid pixelformat:0x%x\n", 446 frame->fmt->pixelformat); 447 } 448 } 449 mtk_mdp_dbg(3, "[%d] planes:%d, size:%d, addr:%p,%p,%p", 450 ctx->id, planes, pix_size, (void *)addr->addr[0], 451 (void *)addr->addr[1], (void *)addr->addr[2]); 452 } 453 454 static void mtk_mdp_m2m_get_bufs(struct mtk_mdp_ctx *ctx) 455 { 456 struct mtk_mdp_frame *s_frame, *d_frame; 457 struct vb2_v4l2_buffer *src_vbuf, *dst_vbuf; 458 459 s_frame = &ctx->s_frame; 460 d_frame = &ctx->d_frame; 461 462 src_vbuf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); 463 mtk_mdp_prepare_addr(ctx, &src_vbuf->vb2_buf, s_frame, &s_frame->addr); 464 465 dst_vbuf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); 466 mtk_mdp_prepare_addr(ctx, &dst_vbuf->vb2_buf, d_frame, &d_frame->addr); 467 468 dst_vbuf->vb2_buf.timestamp = src_vbuf->vb2_buf.timestamp; 469 } 470 471 static void mtk_mdp_process_done(void *priv, int vb_state) 472 { 473 struct mtk_mdp_dev *mdp = priv; 474 struct mtk_mdp_ctx *ctx; 475 struct vb2_v4l2_buffer *src_vbuf, *dst_vbuf; 476 477 ctx = v4l2_m2m_get_curr_priv(mdp->m2m_dev); 478 if (!ctx) 479 return; 480 481 src_vbuf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); 482 dst_vbuf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); 483 484 dst_vbuf->vb2_buf.timestamp = src_vbuf->vb2_buf.timestamp; 485 dst_vbuf->timecode = src_vbuf->timecode; 486 dst_vbuf->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK; 487 dst_vbuf->flags |= src_vbuf->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK; 488 489 v4l2_m2m_buf_done(src_vbuf, vb_state); 490 v4l2_m2m_buf_done(dst_vbuf, vb_state); 491 v4l2_m2m_job_finish(ctx->mdp_dev->m2m_dev, ctx->m2m_ctx); 492 } 493 494 static void mtk_mdp_m2m_worker(struct work_struct *work) 495 { 496 struct mtk_mdp_ctx *ctx = 497 container_of(work, struct mtk_mdp_ctx, work); 498 struct mtk_mdp_dev *mdp = ctx->mdp_dev; 499 enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR; 500 int ret; 501 502 if (mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_CTX_ERROR)) { 503 dev_err(&mdp->pdev->dev, "ctx is in error state"); 504 goto worker_end; 505 } 506 507 mtk_mdp_m2m_get_bufs(ctx); 508 509 mtk_mdp_hw_set_input_addr(ctx, &ctx->s_frame.addr); 510 mtk_mdp_hw_set_output_addr(ctx, &ctx->d_frame.addr); 511 512 mtk_mdp_hw_set_in_size(ctx); 513 mtk_mdp_hw_set_in_image_format(ctx); 514 515 mtk_mdp_hw_set_out_size(ctx); 516 mtk_mdp_hw_set_out_image_format(ctx); 517 518 mtk_mdp_hw_set_rotation(ctx); 519 mtk_mdp_hw_set_global_alpha(ctx); 520 521 ret = mtk_mdp_vpu_process(&ctx->vpu); 522 if (ret) { 523 dev_err(&mdp->pdev->dev, "processing failed: %d", ret); 524 goto worker_end; 525 } 526 527 buf_state = VB2_BUF_STATE_DONE; 528 529 worker_end: 530 mtk_mdp_process_done(mdp, buf_state); 531 } 532 533 static void mtk_mdp_m2m_device_run(void *priv) 534 { 535 struct mtk_mdp_ctx *ctx = priv; 536 537 queue_work(ctx->mdp_dev->job_wq, &ctx->work); 538 } 539 540 static int mtk_mdp_m2m_queue_setup(struct vb2_queue *vq, 541 unsigned int *num_buffers, unsigned int *num_planes, 542 unsigned int sizes[], struct device *alloc_devs[]) 543 { 544 struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vq); 545 struct mtk_mdp_frame *frame; 546 int i; 547 548 frame = mtk_mdp_ctx_get_frame(ctx, vq->type); 549 *num_planes = frame->fmt->num_planes; 550 for (i = 0; i < frame->fmt->num_planes; i++) 551 sizes[i] = frame->payload[i]; 552 mtk_mdp_dbg(2, "[%d] type:%d, planes:%d, buffers:%d, size:%u,%u", 553 ctx->id, vq->type, *num_planes, *num_buffers, 554 sizes[0], sizes[1]); 555 return 0; 556 } 557 558 static int mtk_mdp_m2m_buf_prepare(struct vb2_buffer *vb) 559 { 560 struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 561 struct mtk_mdp_frame *frame; 562 int i; 563 564 frame = mtk_mdp_ctx_get_frame(ctx, vb->vb2_queue->type); 565 566 if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) { 567 for (i = 0; i < frame->fmt->num_planes; i++) 568 vb2_set_plane_payload(vb, i, frame->payload[i]); 569 } 570 571 return 0; 572 } 573 574 static void mtk_mdp_m2m_buf_queue(struct vb2_buffer *vb) 575 { 576 struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 577 578 v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb)); 579 } 580 581 static const struct vb2_ops mtk_mdp_m2m_qops = { 582 .queue_setup = mtk_mdp_m2m_queue_setup, 583 .buf_prepare = mtk_mdp_m2m_buf_prepare, 584 .buf_queue = mtk_mdp_m2m_buf_queue, 585 .stop_streaming = mtk_mdp_m2m_stop_streaming, 586 .start_streaming = mtk_mdp_m2m_start_streaming, 587 }; 588 589 static int mtk_mdp_m2m_querycap(struct file *file, void *fh, 590 struct v4l2_capability *cap) 591 { 592 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 593 struct mtk_mdp_dev *mdp = ctx->mdp_dev; 594 595 strscpy(cap->driver, MTK_MDP_MODULE_NAME, sizeof(cap->driver)); 596 strscpy(cap->card, mdp->pdev->name, sizeof(cap->card)); 597 strscpy(cap->bus_info, "platform:mt8173", sizeof(cap->bus_info)); 598 599 return 0; 600 } 601 602 static int mtk_mdp_enum_fmt(struct v4l2_fmtdesc *f, u32 type) 603 { 604 const struct mtk_mdp_fmt *fmt; 605 606 fmt = mtk_mdp_find_fmt_by_index(f->index, type); 607 if (!fmt) 608 return -EINVAL; 609 610 f->pixelformat = fmt->pixelformat; 611 612 return 0; 613 } 614 615 static int mtk_mdp_m2m_enum_fmt_vid_cap(struct file *file, void *priv, 616 struct v4l2_fmtdesc *f) 617 { 618 return mtk_mdp_enum_fmt(f, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 619 } 620 621 static int mtk_mdp_m2m_enum_fmt_vid_out(struct file *file, void *priv, 622 struct v4l2_fmtdesc *f) 623 { 624 return mtk_mdp_enum_fmt(f, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 625 } 626 627 static int mtk_mdp_m2m_g_fmt_mplane(struct file *file, void *fh, 628 struct v4l2_format *f) 629 { 630 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 631 struct mtk_mdp_frame *frame; 632 struct v4l2_pix_format_mplane *pix_mp; 633 int i; 634 635 mtk_mdp_dbg(2, "[%d] type:%d", ctx->id, f->type); 636 637 frame = mtk_mdp_ctx_get_frame(ctx, f->type); 638 pix_mp = &f->fmt.pix_mp; 639 640 pix_mp->width = frame->width; 641 pix_mp->height = frame->height; 642 pix_mp->field = V4L2_FIELD_NONE; 643 pix_mp->pixelformat = frame->fmt->pixelformat; 644 pix_mp->num_planes = frame->fmt->num_planes; 645 pix_mp->colorspace = ctx->colorspace; 646 pix_mp->xfer_func = ctx->xfer_func; 647 pix_mp->ycbcr_enc = ctx->ycbcr_enc; 648 pix_mp->quantization = ctx->quant; 649 mtk_mdp_dbg(2, "[%d] wxh:%dx%d", ctx->id, 650 pix_mp->width, pix_mp->height); 651 652 for (i = 0; i < pix_mp->num_planes; ++i) { 653 pix_mp->plane_fmt[i].bytesperline = (frame->width * 654 frame->fmt->row_depth[i]) / 8; 655 pix_mp->plane_fmt[i].sizeimage = (frame->width * 656 frame->height * frame->fmt->depth[i]) / 8; 657 658 mtk_mdp_dbg(2, "[%d] p%d, bpl:%d, sizeimage:%d", ctx->id, i, 659 pix_mp->plane_fmt[i].bytesperline, 660 pix_mp->plane_fmt[i].sizeimage); 661 } 662 663 return 0; 664 } 665 666 static int mtk_mdp_m2m_try_fmt_mplane(struct file *file, void *fh, 667 struct v4l2_format *f) 668 { 669 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 670 671 if (!mtk_mdp_try_fmt_mplane(ctx, f)) 672 return -EINVAL; 673 return 0; 674 } 675 676 static int mtk_mdp_m2m_s_fmt_mplane(struct file *file, void *fh, 677 struct v4l2_format *f) 678 { 679 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 680 struct vb2_queue *vq; 681 struct mtk_mdp_frame *frame; 682 struct v4l2_pix_format_mplane *pix_mp; 683 const struct mtk_mdp_fmt *fmt; 684 int i; 685 686 mtk_mdp_dbg(2, "[%d] type:%d", ctx->id, f->type); 687 688 frame = mtk_mdp_ctx_get_frame(ctx, f->type); 689 fmt = mtk_mdp_try_fmt_mplane(ctx, f); 690 if (!fmt) { 691 mtk_mdp_err("[%d] try_fmt failed, type:%d", ctx->id, f->type); 692 return -EINVAL; 693 } 694 frame->fmt = fmt; 695 696 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); 697 if (vb2_is_streaming(vq)) { 698 dev_info(&ctx->mdp_dev->pdev->dev, "queue %d busy", f->type); 699 return -EBUSY; 700 } 701 702 pix_mp = &f->fmt.pix_mp; 703 for (i = 0; i < frame->fmt->num_planes; i++) { 704 frame->payload[i] = pix_mp->plane_fmt[i].sizeimage; 705 frame->pitch[i] = pix_mp->plane_fmt[i].bytesperline; 706 } 707 708 mtk_mdp_set_frame_size(frame, pix_mp->width, pix_mp->height); 709 if (V4L2_TYPE_IS_OUTPUT(f->type)) { 710 ctx->colorspace = pix_mp->colorspace; 711 ctx->xfer_func = pix_mp->xfer_func; 712 ctx->ycbcr_enc = pix_mp->ycbcr_enc; 713 ctx->quant = pix_mp->quantization; 714 } 715 716 mtk_mdp_dbg(2, "[%d] type:%d, frame:%dx%d", ctx->id, f->type, 717 frame->width, frame->height); 718 719 return 0; 720 } 721 722 static int mtk_mdp_m2m_reqbufs(struct file *file, void *fh, 723 struct v4l2_requestbuffers *reqbufs) 724 { 725 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 726 727 return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); 728 } 729 730 static int mtk_mdp_m2m_streamon(struct file *file, void *fh, 731 enum v4l2_buf_type type) 732 { 733 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 734 int ret; 735 736 if (!mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_VPU_INIT)) { 737 ret = mtk_mdp_vpu_init(&ctx->vpu); 738 if (ret < 0) { 739 dev_err(&ctx->mdp_dev->pdev->dev, 740 "vpu init failed %d\n", 741 ret); 742 return -EINVAL; 743 } 744 mtk_mdp_ctx_state_lock_set(ctx, MTK_MDP_VPU_INIT); 745 } 746 747 return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); 748 } 749 750 static inline bool mtk_mdp_is_target_compose(u32 target) 751 { 752 if (target == V4L2_SEL_TGT_COMPOSE_DEFAULT 753 || target == V4L2_SEL_TGT_COMPOSE_BOUNDS 754 || target == V4L2_SEL_TGT_COMPOSE) 755 return true; 756 return false; 757 } 758 759 static inline bool mtk_mdp_is_target_crop(u32 target) 760 { 761 if (target == V4L2_SEL_TGT_CROP_DEFAULT 762 || target == V4L2_SEL_TGT_CROP_BOUNDS 763 || target == V4L2_SEL_TGT_CROP) 764 return true; 765 return false; 766 } 767 768 static int mtk_mdp_m2m_g_selection(struct file *file, void *fh, 769 struct v4l2_selection *s) 770 { 771 struct mtk_mdp_frame *frame; 772 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 773 bool valid = false; 774 775 if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 776 if (mtk_mdp_is_target_compose(s->target)) 777 valid = true; 778 } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 779 if (mtk_mdp_is_target_crop(s->target)) 780 valid = true; 781 } 782 if (!valid) { 783 mtk_mdp_dbg(1, "[%d] invalid type:%d,%u", ctx->id, s->type, 784 s->target); 785 return -EINVAL; 786 } 787 788 frame = mtk_mdp_ctx_get_frame(ctx, s->type); 789 790 switch (s->target) { 791 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 792 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 793 case V4L2_SEL_TGT_CROP_BOUNDS: 794 case V4L2_SEL_TGT_CROP_DEFAULT: 795 s->r.left = 0; 796 s->r.top = 0; 797 s->r.width = frame->width; 798 s->r.height = frame->height; 799 return 0; 800 801 case V4L2_SEL_TGT_COMPOSE: 802 case V4L2_SEL_TGT_CROP: 803 s->r.left = frame->crop.left; 804 s->r.top = frame->crop.top; 805 s->r.width = frame->crop.width; 806 s->r.height = frame->crop.height; 807 return 0; 808 } 809 810 return -EINVAL; 811 } 812 813 static int mtk_mdp_check_scaler_ratio(struct mtk_mdp_variant *var, int src_w, 814 int src_h, int dst_w, int dst_h, int rot) 815 { 816 int tmp_w, tmp_h; 817 818 if (rot == 90 || rot == 270) { 819 tmp_w = dst_h; 820 tmp_h = dst_w; 821 } else { 822 tmp_w = dst_w; 823 tmp_h = dst_h; 824 } 825 826 if ((src_w / tmp_w) > var->h_scale_down_max || 827 (src_h / tmp_h) > var->v_scale_down_max || 828 (tmp_w / src_w) > var->h_scale_up_max || 829 (tmp_h / src_h) > var->v_scale_up_max) 830 return -EINVAL; 831 832 return 0; 833 } 834 835 static int mtk_mdp_m2m_s_selection(struct file *file, void *fh, 836 struct v4l2_selection *s) 837 { 838 struct mtk_mdp_frame *frame; 839 struct mtk_mdp_ctx *ctx = fh_to_ctx(fh); 840 struct v4l2_rect new_r; 841 struct mtk_mdp_variant *variant = ctx->mdp_dev->variant; 842 int ret; 843 bool valid = false; 844 845 if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 846 if (s->target == V4L2_SEL_TGT_COMPOSE) 847 valid = true; 848 } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 849 if (s->target == V4L2_SEL_TGT_CROP) 850 valid = true; 851 } 852 if (!valid) { 853 mtk_mdp_dbg(1, "[%d] invalid type:%d,%u", ctx->id, s->type, 854 s->target); 855 return -EINVAL; 856 } 857 858 new_r = s->r; 859 ret = mtk_mdp_try_crop(ctx, s->type, &new_r); 860 if (ret) 861 return ret; 862 863 if (mtk_mdp_is_target_crop(s->target)) 864 frame = &ctx->s_frame; 865 else 866 frame = &ctx->d_frame; 867 868 /* Check to see if scaling ratio is within supported range */ 869 if (V4L2_TYPE_IS_OUTPUT(s->type)) 870 ret = mtk_mdp_check_scaler_ratio(variant, new_r.width, 871 new_r.height, ctx->d_frame.crop.width, 872 ctx->d_frame.crop.height, 873 ctx->ctrls.rotate->val); 874 else 875 ret = mtk_mdp_check_scaler_ratio(variant, 876 ctx->s_frame.crop.width, 877 ctx->s_frame.crop.height, new_r.width, 878 new_r.height, ctx->ctrls.rotate->val); 879 880 if (ret) { 881 dev_info(&ctx->mdp_dev->pdev->dev, 882 "Out of scaler range"); 883 return -EINVAL; 884 } 885 886 s->r = new_r; 887 frame->crop = new_r; 888 889 return 0; 890 } 891 892 static const struct v4l2_ioctl_ops mtk_mdp_m2m_ioctl_ops = { 893 .vidioc_querycap = mtk_mdp_m2m_querycap, 894 .vidioc_enum_fmt_vid_cap = mtk_mdp_m2m_enum_fmt_vid_cap, 895 .vidioc_enum_fmt_vid_out = mtk_mdp_m2m_enum_fmt_vid_out, 896 .vidioc_g_fmt_vid_cap_mplane = mtk_mdp_m2m_g_fmt_mplane, 897 .vidioc_g_fmt_vid_out_mplane = mtk_mdp_m2m_g_fmt_mplane, 898 .vidioc_try_fmt_vid_cap_mplane = mtk_mdp_m2m_try_fmt_mplane, 899 .vidioc_try_fmt_vid_out_mplane = mtk_mdp_m2m_try_fmt_mplane, 900 .vidioc_s_fmt_vid_cap_mplane = mtk_mdp_m2m_s_fmt_mplane, 901 .vidioc_s_fmt_vid_out_mplane = mtk_mdp_m2m_s_fmt_mplane, 902 .vidioc_reqbufs = mtk_mdp_m2m_reqbufs, 903 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 904 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 905 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 906 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 907 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 908 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 909 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 910 .vidioc_streamon = mtk_mdp_m2m_streamon, 911 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 912 .vidioc_g_selection = mtk_mdp_m2m_g_selection, 913 .vidioc_s_selection = mtk_mdp_m2m_s_selection 914 }; 915 916 static int mtk_mdp_m2m_queue_init(void *priv, struct vb2_queue *src_vq, 917 struct vb2_queue *dst_vq) 918 { 919 struct mtk_mdp_ctx *ctx = priv; 920 int ret; 921 922 memset(src_vq, 0, sizeof(*src_vq)); 923 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 924 src_vq->io_modes = VB2_MMAP | VB2_DMABUF; 925 src_vq->drv_priv = ctx; 926 src_vq->ops = &mtk_mdp_m2m_qops; 927 src_vq->mem_ops = &vb2_dma_contig_memops; 928 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); 929 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 930 src_vq->dev = &ctx->mdp_dev->pdev->dev; 931 src_vq->lock = &ctx->mdp_dev->lock; 932 933 ret = vb2_queue_init(src_vq); 934 if (ret) 935 return ret; 936 937 memset(dst_vq, 0, sizeof(*dst_vq)); 938 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 939 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; 940 dst_vq->drv_priv = ctx; 941 dst_vq->ops = &mtk_mdp_m2m_qops; 942 dst_vq->mem_ops = &vb2_dma_contig_memops; 943 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); 944 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 945 dst_vq->dev = &ctx->mdp_dev->pdev->dev; 946 dst_vq->lock = &ctx->mdp_dev->lock; 947 948 return vb2_queue_init(dst_vq); 949 } 950 951 static int mtk_mdp_s_ctrl(struct v4l2_ctrl *ctrl) 952 { 953 struct mtk_mdp_ctx *ctx = ctrl_to_ctx(ctrl); 954 struct mtk_mdp_dev *mdp = ctx->mdp_dev; 955 struct mtk_mdp_variant *variant = mdp->variant; 956 int ret = 0; 957 958 if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) 959 return 0; 960 961 switch (ctrl->id) { 962 case V4L2_CID_HFLIP: 963 ctx->hflip = ctrl->val; 964 break; 965 case V4L2_CID_VFLIP: 966 ctx->vflip = ctrl->val; 967 break; 968 case V4L2_CID_ROTATE: 969 ret = mtk_mdp_check_scaler_ratio(variant, 970 ctx->s_frame.crop.width, 971 ctx->s_frame.crop.height, 972 ctx->d_frame.crop.width, 973 ctx->d_frame.crop.height, 974 ctx->ctrls.rotate->val); 975 976 if (ret) 977 return -EINVAL; 978 979 ctx->rotation = ctrl->val; 980 break; 981 case V4L2_CID_ALPHA_COMPONENT: 982 ctx->d_frame.alpha = ctrl->val; 983 break; 984 } 985 986 return 0; 987 } 988 989 static const struct v4l2_ctrl_ops mtk_mdp_ctrl_ops = { 990 .s_ctrl = mtk_mdp_s_ctrl, 991 }; 992 993 static int mtk_mdp_ctrls_create(struct mtk_mdp_ctx *ctx) 994 { 995 v4l2_ctrl_handler_init(&ctx->ctrl_handler, MTK_MDP_MAX_CTRL_NUM); 996 997 ctx->ctrls.rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler, 998 &mtk_mdp_ctrl_ops, V4L2_CID_ROTATE, 0, 270, 90, 0); 999 ctx->ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, 1000 &mtk_mdp_ctrl_ops, 1001 V4L2_CID_HFLIP, 1002 0, 1, 1, 0); 1003 ctx->ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, 1004 &mtk_mdp_ctrl_ops, 1005 V4L2_CID_VFLIP, 1006 0, 1, 1, 0); 1007 ctx->ctrls.global_alpha = v4l2_ctrl_new_std(&ctx->ctrl_handler, 1008 &mtk_mdp_ctrl_ops, 1009 V4L2_CID_ALPHA_COMPONENT, 1010 0, 255, 1, 0); 1011 ctx->ctrls_rdy = ctx->ctrl_handler.error == 0; 1012 1013 if (ctx->ctrl_handler.error) { 1014 int err = ctx->ctrl_handler.error; 1015 1016 v4l2_ctrl_handler_free(&ctx->ctrl_handler); 1017 dev_err(&ctx->mdp_dev->pdev->dev, 1018 "Failed to create control handlers\n"); 1019 return err; 1020 } 1021 1022 return 0; 1023 } 1024 1025 static void mtk_mdp_set_default_params(struct mtk_mdp_ctx *ctx) 1026 { 1027 struct mtk_mdp_dev *mdp = ctx->mdp_dev; 1028 struct mtk_mdp_frame *frame; 1029 1030 frame = mtk_mdp_ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 1031 frame->fmt = mtk_mdp_find_fmt_by_index(0, 1032 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 1033 frame->width = mdp->variant->pix_min->org_w; 1034 frame->height = mdp->variant->pix_min->org_h; 1035 frame->payload[0] = frame->width * frame->height; 1036 frame->payload[1] = frame->payload[0] / 2; 1037 1038 frame = mtk_mdp_ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 1039 frame->fmt = mtk_mdp_find_fmt_by_index(0, 1040 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 1041 frame->width = mdp->variant->pix_min->target_rot_dis_w; 1042 frame->height = mdp->variant->pix_min->target_rot_dis_h; 1043 frame->payload[0] = frame->width * frame->height; 1044 frame->payload[1] = frame->payload[0] / 2; 1045 1046 } 1047 1048 static int mtk_mdp_m2m_open(struct file *file) 1049 { 1050 struct mtk_mdp_dev *mdp = video_drvdata(file); 1051 struct video_device *vfd = video_devdata(file); 1052 struct mtk_mdp_ctx *ctx = NULL; 1053 int ret; 1054 struct v4l2_format default_format; 1055 1056 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 1057 if (!ctx) 1058 return -ENOMEM; 1059 1060 if (mutex_lock_interruptible(&mdp->lock)) { 1061 ret = -ERESTARTSYS; 1062 goto err_lock; 1063 } 1064 1065 mutex_init(&ctx->slock); 1066 ctx->id = mdp->id_counter++; 1067 v4l2_fh_init(&ctx->fh, vfd); 1068 file->private_data = &ctx->fh; 1069 ret = mtk_mdp_ctrls_create(ctx); 1070 if (ret) 1071 goto error_ctrls; 1072 1073 /* Use separate control handler per file handle */ 1074 ctx->fh.ctrl_handler = &ctx->ctrl_handler; 1075 v4l2_fh_add(&ctx->fh); 1076 INIT_LIST_HEAD(&ctx->list); 1077 1078 ctx->mdp_dev = mdp; 1079 mtk_mdp_set_default_params(ctx); 1080 1081 INIT_WORK(&ctx->work, mtk_mdp_m2m_worker); 1082 ctx->m2m_ctx = v4l2_m2m_ctx_init(mdp->m2m_dev, ctx, 1083 mtk_mdp_m2m_queue_init); 1084 if (IS_ERR(ctx->m2m_ctx)) { 1085 dev_err(&mdp->pdev->dev, "Failed to initialize m2m context"); 1086 ret = PTR_ERR(ctx->m2m_ctx); 1087 goto error_m2m_ctx; 1088 } 1089 ctx->fh.m2m_ctx = ctx->m2m_ctx; 1090 if (mdp->ctx_num++ == 0) { 1091 ret = vpu_load_firmware(mdp->vpu_dev); 1092 if (ret < 0) { 1093 dev_err(&mdp->pdev->dev, 1094 "vpu_load_firmware failed %d\n", ret); 1095 goto err_load_vpu; 1096 } 1097 1098 ret = mtk_mdp_vpu_register(mdp->pdev); 1099 if (ret < 0) { 1100 dev_err(&mdp->pdev->dev, 1101 "mdp_vpu register failed %d\n", ret); 1102 goto err_load_vpu; 1103 } 1104 } 1105 1106 list_add(&ctx->list, &mdp->ctx_list); 1107 mutex_unlock(&mdp->lock); 1108 1109 /* Default format */ 1110 memset(&default_format, 0, sizeof(default_format)); 1111 default_format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 1112 default_format.fmt.pix_mp.width = 32; 1113 default_format.fmt.pix_mp.height = 32; 1114 default_format.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_YUV420M; 1115 mtk_mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format); 1116 default_format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 1117 mtk_mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format); 1118 1119 mtk_mdp_dbg(0, "%s [%d]", dev_name(&mdp->pdev->dev), ctx->id); 1120 1121 return 0; 1122 1123 err_load_vpu: 1124 mdp->ctx_num--; 1125 v4l2_m2m_ctx_release(ctx->m2m_ctx); 1126 error_m2m_ctx: 1127 v4l2_ctrl_handler_free(&ctx->ctrl_handler); 1128 error_ctrls: 1129 v4l2_fh_del(&ctx->fh); 1130 v4l2_fh_exit(&ctx->fh); 1131 mutex_unlock(&mdp->lock); 1132 err_lock: 1133 kfree(ctx); 1134 1135 return ret; 1136 } 1137 1138 static int mtk_mdp_m2m_release(struct file *file) 1139 { 1140 struct mtk_mdp_ctx *ctx = fh_to_ctx(file->private_data); 1141 struct mtk_mdp_dev *mdp = ctx->mdp_dev; 1142 1143 flush_workqueue(mdp->job_wq); 1144 mutex_lock(&mdp->lock); 1145 v4l2_m2m_ctx_release(ctx->m2m_ctx); 1146 v4l2_ctrl_handler_free(&ctx->ctrl_handler); 1147 v4l2_fh_del(&ctx->fh); 1148 v4l2_fh_exit(&ctx->fh); 1149 mtk_mdp_vpu_deinit(&ctx->vpu); 1150 mdp->ctx_num--; 1151 list_del_init(&ctx->list); 1152 1153 mtk_mdp_dbg(0, "%s [%d]", dev_name(&mdp->pdev->dev), ctx->id); 1154 1155 mutex_unlock(&mdp->lock); 1156 kfree(ctx); 1157 1158 return 0; 1159 } 1160 1161 static const struct v4l2_file_operations mtk_mdp_m2m_fops = { 1162 .owner = THIS_MODULE, 1163 .open = mtk_mdp_m2m_open, 1164 .release = mtk_mdp_m2m_release, 1165 .poll = v4l2_m2m_fop_poll, 1166 .unlocked_ioctl = video_ioctl2, 1167 .mmap = v4l2_m2m_fop_mmap, 1168 }; 1169 1170 static const struct v4l2_m2m_ops mtk_mdp_m2m_ops = { 1171 .device_run = mtk_mdp_m2m_device_run, 1172 }; 1173 1174 int mtk_mdp_register_m2m_device(struct mtk_mdp_dev *mdp) 1175 { 1176 struct device *dev = &mdp->pdev->dev; 1177 int ret; 1178 1179 mdp->variant = &mtk_mdp_default_variant; 1180 mdp->vdev = video_device_alloc(); 1181 if (!mdp->vdev) { 1182 dev_err(dev, "failed to allocate video device\n"); 1183 ret = -ENOMEM; 1184 goto err_video_alloc; 1185 } 1186 mdp->vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; 1187 mdp->vdev->fops = &mtk_mdp_m2m_fops; 1188 mdp->vdev->ioctl_ops = &mtk_mdp_m2m_ioctl_ops; 1189 mdp->vdev->release = video_device_release; 1190 mdp->vdev->lock = &mdp->lock; 1191 mdp->vdev->vfl_dir = VFL_DIR_M2M; 1192 mdp->vdev->v4l2_dev = &mdp->v4l2_dev; 1193 snprintf(mdp->vdev->name, sizeof(mdp->vdev->name), "%s:m2m", 1194 MTK_MDP_MODULE_NAME); 1195 video_set_drvdata(mdp->vdev, mdp); 1196 1197 mdp->m2m_dev = v4l2_m2m_init(&mtk_mdp_m2m_ops); 1198 if (IS_ERR(mdp->m2m_dev)) { 1199 dev_err(dev, "failed to initialize v4l2-m2m device\n"); 1200 ret = PTR_ERR(mdp->m2m_dev); 1201 goto err_m2m_init; 1202 } 1203 1204 ret = video_register_device(mdp->vdev, VFL_TYPE_VIDEO, 2); 1205 if (ret) { 1206 dev_err(dev, "failed to register video device\n"); 1207 goto err_vdev_register; 1208 } 1209 1210 v4l2_info(&mdp->v4l2_dev, "driver registered as /dev/video%d", 1211 mdp->vdev->num); 1212 return 0; 1213 1214 err_vdev_register: 1215 v4l2_m2m_release(mdp->m2m_dev); 1216 err_m2m_init: 1217 video_device_release(mdp->vdev); 1218 err_video_alloc: 1219 1220 return ret; 1221 } 1222 1223 void mtk_mdp_unregister_m2m_device(struct mtk_mdp_dev *mdp) 1224 { 1225 video_unregister_device(mdp->vdev); 1226 v4l2_m2m_release(mdp->m2m_dev); 1227 } 1228