linux/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
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   1/*
   2 * Copyright (c) 2015-2016 MediaTek Inc.
   3 * Author: Houlong Wei <houlong.wei@mediatek.com>
   4 *         Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2 as
   8 * published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 */
  15
  16#include <linux/device.h>
  17#include <linux/errno.h>
  18#include <linux/kernel.h>
  19#include <linux/pm_runtime.h>
  20#include <linux/slab.h>
  21#include <linux/workqueue.h>
  22#include <media/v4l2-event.h>
  23#include <media/v4l2-ioctl.h>
  24
  25#include "mtk_mdp_core.h"
  26#include "mtk_mdp_m2m.h"
  27#include "mtk_mdp_regs.h"
  28#include "mtk_vpu.h"
  29
  30
  31/**
  32 *  struct mtk_mdp_pix_limit - image pixel size limits
  33 *  @org_w: source pixel width
  34 *  @org_h: source pixel height
  35 *  @target_rot_dis_w: pixel dst scaled width with the rotator is off
  36 *  @target_rot_dis_h: pixel dst scaled height with the rotator is off
  37 *  @target_rot_en_w: pixel dst scaled width with the rotator is on
  38 *  @target_rot_en_h: pixel dst scaled height with the rotator is on
  39 */
  40struct mtk_mdp_pix_limit {
  41        u16 org_w;
  42        u16 org_h;
  43        u16 target_rot_dis_w;
  44        u16 target_rot_dis_h;
  45        u16 target_rot_en_w;
  46        u16 target_rot_en_h;
  47};
  48
  49static struct mtk_mdp_pix_align mtk_mdp_size_align = {
  50        .org_w                  = 16,
  51        .org_h                  = 16,
  52        .target_w               = 2,
  53        .target_h               = 2,
  54};
  55
  56static const struct mtk_mdp_fmt mtk_mdp_formats[] = {
  57        {
  58                .pixelformat    = V4L2_PIX_FMT_MT21C,
  59                .depth          = { 8, 4 },
  60                .row_depth      = { 8, 8 },
  61                .num_planes     = 2,
  62                .num_comp       = 2,
  63                .align          = &mtk_mdp_size_align,
  64                .flags          = MTK_MDP_FMT_FLAG_OUTPUT,
  65        }, {
  66                .pixelformat    = V4L2_PIX_FMT_NV12M,
  67                .depth          = { 8, 4 },
  68                .row_depth      = { 8, 8 },
  69                .num_planes     = 2,
  70                .num_comp       = 2,
  71                .flags          = MTK_MDP_FMT_FLAG_OUTPUT |
  72                                  MTK_MDP_FMT_FLAG_CAPTURE,
  73        }, {
  74                .pixelformat    = V4L2_PIX_FMT_YUV420M,
  75                .depth          = { 8, 2, 2 },
  76                .row_depth      = { 8, 4, 4 },
  77                .num_planes     = 3,
  78                .num_comp       = 3,
  79                .flags          = MTK_MDP_FMT_FLAG_OUTPUT |
  80                                  MTK_MDP_FMT_FLAG_CAPTURE,
  81        }, {
  82                .pixelformat    = V4L2_PIX_FMT_YVU420,
  83                .depth          = { 12 },
  84                .row_depth      = { 8 },
  85                .num_planes     = 1,
  86                .num_comp       = 3,
  87                .flags          = MTK_MDP_FMT_FLAG_OUTPUT |
  88                                  MTK_MDP_FMT_FLAG_CAPTURE,
  89        }
  90};
  91
  92static struct mtk_mdp_pix_limit mtk_mdp_size_max = {
  93        .target_rot_dis_w       = 4096,
  94        .target_rot_dis_h       = 4096,
  95        .target_rot_en_w        = 4096,
  96        .target_rot_en_h        = 4096,
  97};
  98
  99static struct mtk_mdp_pix_limit mtk_mdp_size_min = {
 100        .org_w                  = 16,
 101        .org_h                  = 16,
 102        .target_rot_dis_w       = 16,
 103        .target_rot_dis_h       = 16,
 104        .target_rot_en_w        = 16,
 105        .target_rot_en_h        = 16,
 106};
 107
 108/* align size for normal raster scan pixel format */
 109static struct mtk_mdp_pix_align mtk_mdp_rs_align = {
 110        .org_w                  = 2,
 111        .org_h                  = 2,
 112        .target_w               = 2,
 113        .target_h               = 2,
 114};
 115
 116static struct mtk_mdp_variant mtk_mdp_default_variant = {
 117        .pix_max                = &mtk_mdp_size_max,
 118        .pix_min                = &mtk_mdp_size_min,
 119        .pix_align              = &mtk_mdp_rs_align,
 120        .h_scale_up_max         = 32,
 121        .v_scale_up_max         = 32,
 122        .h_scale_down_max       = 32,
 123        .v_scale_down_max       = 128,
 124};
 125
 126static const struct mtk_mdp_fmt *mtk_mdp_find_fmt(u32 pixelformat, u32 type)
 127{
 128        u32 i, flag;
 129
 130        flag = V4L2_TYPE_IS_OUTPUT(type) ? MTK_MDP_FMT_FLAG_OUTPUT :
 131                                           MTK_MDP_FMT_FLAG_CAPTURE;
 132
 133        for (i = 0; i < ARRAY_SIZE(mtk_mdp_formats); ++i) {
 134                if (!(mtk_mdp_formats[i].flags & flag))
 135                        continue;
 136                if (mtk_mdp_formats[i].pixelformat == pixelformat)
 137                        return &mtk_mdp_formats[i];
 138        }
 139        return NULL;
 140}
 141
 142static const struct mtk_mdp_fmt *mtk_mdp_find_fmt_by_index(u32 index, u32 type)
 143{
 144        u32 i, flag, num = 0;
 145
 146        flag = V4L2_TYPE_IS_OUTPUT(type) ? MTK_MDP_FMT_FLAG_OUTPUT :
 147                                           MTK_MDP_FMT_FLAG_CAPTURE;
 148
 149        for (i = 0; i < ARRAY_SIZE(mtk_mdp_formats); ++i) {
 150                if (!(mtk_mdp_formats[i].flags & flag))
 151                        continue;
 152                if (index == num)
 153                        return &mtk_mdp_formats[i];
 154                num++;
 155        }
 156        return NULL;
 157}
 158
 159static void mtk_mdp_bound_align_image(u32 *w, unsigned int wmin,
 160                                      unsigned int wmax, unsigned int align_w,
 161                                      u32 *h, unsigned int hmin,
 162                                      unsigned int hmax, unsigned int align_h)
 163{
 164        int org_w, org_h, step_w, step_h;
 165        int walign, halign;
 166
 167        org_w = *w;
 168        org_h = *h;
 169        walign = ffs(align_w) - 1;
 170        halign = ffs(align_h) - 1;
 171        v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0);
 172
 173        step_w = 1 << walign;
 174        step_h = 1 << halign;
 175        if (*w < org_w && (*w + step_w) <= wmax)
 176                *w += step_w;
 177        if (*h < org_h && (*h + step_h) <= hmax)
 178                *h += step_h;
 179}
 180
 181static const struct mtk_mdp_fmt *mtk_mdp_try_fmt_mplane(struct mtk_mdp_ctx *ctx,
 182                                                        struct v4l2_format *f)
 183{
 184        struct mtk_mdp_dev *mdp = ctx->mdp_dev;
 185        struct mtk_mdp_variant *variant = mdp->variant;
 186        struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
 187        const struct mtk_mdp_fmt *fmt;
 188        u32 max_w, max_h, align_w, align_h;
 189        u32 min_w, min_h, org_w, org_h;
 190        int i;
 191
 192        fmt = mtk_mdp_find_fmt(pix_mp->pixelformat, f->type);
 193        if (!fmt)
 194                fmt = mtk_mdp_find_fmt_by_index(0, f->type);
 195        if (!fmt) {
 196                dev_dbg(&ctx->mdp_dev->pdev->dev,
 197                        "pixelformat format 0x%X invalid\n",
 198                        pix_mp->pixelformat);
 199                return NULL;
 200        }
 201
 202        pix_mp->field = V4L2_FIELD_NONE;
 203        pix_mp->pixelformat = fmt->pixelformat;
 204        if (!V4L2_TYPE_IS_OUTPUT(f->type)) {
 205                pix_mp->colorspace = ctx->colorspace;
 206                pix_mp->xfer_func = ctx->xfer_func;
 207                pix_mp->ycbcr_enc = ctx->ycbcr_enc;
 208                pix_mp->quantization = ctx->quant;
 209        }
 210        memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
 211
 212        max_w = variant->pix_max->target_rot_dis_w;
 213        max_h = variant->pix_max->target_rot_dis_h;
 214
 215        if (fmt->align == NULL) {
 216                /* use default alignment */
 217                align_w = variant->pix_align->org_w;
 218                align_h = variant->pix_align->org_h;
 219        } else {
 220                align_w = fmt->align->org_w;
 221                align_h = fmt->align->org_h;
 222        }
 223
 224        if (V4L2_TYPE_IS_OUTPUT(f->type)) {
 225                min_w = variant->pix_min->org_w;
 226                min_h = variant->pix_min->org_h;
 227        } else {
 228                min_w = variant->pix_min->target_rot_dis_w;
 229                min_h = variant->pix_min->target_rot_dis_h;
 230        }
 231
 232        mtk_mdp_dbg(2, "[%d] type:%d, wxh:%ux%u, align:%ux%u, max:%ux%u",
 233                    ctx->id, f->type, pix_mp->width, pix_mp->height,
 234                    align_w, align_h, max_w, max_h);
 235        /*
 236         * To check if image size is modified to adjust parameter against
 237         * hardware abilities
 238         */
 239        org_w = pix_mp->width;
 240        org_h = pix_mp->height;
 241
 242        mtk_mdp_bound_align_image(&pix_mp->width, min_w, max_w, align_w,
 243                                  &pix_mp->height, min_h, max_h, align_h);
 244
 245        if (org_w != pix_mp->width || org_h != pix_mp->height)
 246                mtk_mdp_dbg(1, "[%d] size change:%ux%u to %ux%u", ctx->id,
 247                            org_w, org_h, pix_mp->width, pix_mp->height);
 248        pix_mp->num_planes = fmt->num_planes;
 249
 250        for (i = 0; i < pix_mp->num_planes; ++i) {
 251                int bpl = (pix_mp->width * fmt->row_depth[i]) / 8;
 252                int sizeimage = (pix_mp->width * pix_mp->height *
 253                        fmt->depth[i]) / 8;
 254
 255                pix_mp->plane_fmt[i].bytesperline = bpl;
 256                if (pix_mp->plane_fmt[i].sizeimage < sizeimage)
 257                        pix_mp->plane_fmt[i].sizeimage = sizeimage;
 258                memset(pix_mp->plane_fmt[i].reserved, 0,
 259                       sizeof(pix_mp->plane_fmt[i].reserved));
 260                mtk_mdp_dbg(2, "[%d] p%d, bpl:%d, sizeimage:%u (%u)", ctx->id,
 261                            i, bpl, pix_mp->plane_fmt[i].sizeimage, sizeimage);
 262        }
 263
 264        return fmt;
 265}
 266
 267static struct mtk_mdp_frame *mtk_mdp_ctx_get_frame(struct mtk_mdp_ctx *ctx,
 268                                            enum v4l2_buf_type type)
 269{
 270        if (V4L2_TYPE_IS_OUTPUT(type))
 271                return &ctx->s_frame;
 272        return &ctx->d_frame;
 273}
 274
 275static void mtk_mdp_check_crop_change(u32 new_w, u32 new_h, u32 *w, u32 *h)
 276{
 277        if (new_w != *w || new_h != *h) {
 278                mtk_mdp_dbg(1, "size change:%dx%d to %dx%d",
 279                            *w, *h, new_w, new_h);
 280
 281                *w = new_w;
 282                *h = new_h;
 283        }
 284}
 285
 286static int mtk_mdp_try_crop(struct mtk_mdp_ctx *ctx, u32 type,
 287                            struct v4l2_rect *r)
 288{
 289        struct mtk_mdp_frame *frame;
 290        struct mtk_mdp_dev *mdp = ctx->mdp_dev;
 291        struct mtk_mdp_variant *variant = mdp->variant;
 292        u32 align_w, align_h, new_w, new_h;
 293        u32 min_w, min_h, max_w, max_h;
 294
 295        if (r->top < 0 || r->left < 0) {
 296                dev_err(&ctx->mdp_dev->pdev->dev,
 297                        "doesn't support negative values for top & left\n");
 298                return -EINVAL;
 299        }
 300
 301        mtk_mdp_dbg(2, "[%d] type:%d, set wxh:%dx%d", ctx->id, type,
 302                    r->width, r->height);
 303
 304        frame = mtk_mdp_ctx_get_frame(ctx, type);
 305        max_w = frame->width;
 306        max_h = frame->height;
 307        new_w = r->width;
 308        new_h = r->height;
 309
 310        if (V4L2_TYPE_IS_OUTPUT(type)) {
 311                align_w = 1;
 312                align_h = 1;
 313                min_w = 64;
 314                min_h = 32;
 315        } else {
 316                align_w = variant->pix_align->target_w;
 317                align_h = variant->pix_align->target_h;
 318                if (ctx->ctrls.rotate->val == 90 ||
 319                    ctx->ctrls.rotate->val == 270) {
 320                        max_w = frame->height;
 321                        max_h = frame->width;
 322                        min_w = variant->pix_min->target_rot_en_w;
 323                        min_h = variant->pix_min->target_rot_en_h;
 324                        new_w = r->height;
 325                        new_h = r->width;
 326                } else {
 327                        min_w = variant->pix_min->target_rot_dis_w;
 328                        min_h = variant->pix_min->target_rot_dis_h;
 329                }
 330        }
 331
 332        mtk_mdp_dbg(2, "[%d] align:%dx%d, min:%dx%d, new:%dx%d", ctx->id,
 333                    align_w, align_h, min_w, min_h, new_w, new_h);
 334
 335        mtk_mdp_bound_align_image(&new_w, min_w, max_w, align_w,
 336                                  &new_h, min_h, max_h, align_h);
 337
 338        if (!V4L2_TYPE_IS_OUTPUT(type) &&
 339                (ctx->ctrls.rotate->val == 90 ||
 340                ctx->ctrls.rotate->val == 270))
 341                mtk_mdp_check_crop_change(new_h, new_w,
 342                                          &r->width, &r->height);
 343        else
 344                mtk_mdp_check_crop_change(new_w, new_h,
 345                                          &r->width, &r->height);
 346
 347        /* adjust left/top if cropping rectangle is out of bounds */
 348        /* Need to add code to algin left value with 2's multiple */
 349        if (r->left + new_w > max_w)
 350                r->left = max_w - new_w;
 351        if (r->top + new_h > max_h)
 352                r->top = max_h - new_h;
 353
 354        if (r->left & 1)
 355                r->left -= 1;
 356
 357        mtk_mdp_dbg(2, "[%d] crop l,t,w,h:%d,%d,%d,%d, max:%dx%d", ctx->id,
 358                    r->left, r->top, r->width,
 359                    r->height, max_w, max_h);
 360        return 0;
 361}
 362
 363static inline struct mtk_mdp_ctx *fh_to_ctx(struct v4l2_fh *fh)
 364{
 365        return container_of(fh, struct mtk_mdp_ctx, fh);
 366}
 367
 368static inline struct mtk_mdp_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
 369{
 370        return container_of(ctrl->handler, struct mtk_mdp_ctx, ctrl_handler);
 371}
 372
 373void mtk_mdp_ctx_state_lock_set(struct mtk_mdp_ctx *ctx, u32 state)
 374{
 375        mutex_lock(&ctx->slock);
 376        ctx->state |= state;
 377        mutex_unlock(&ctx->slock);
 378}
 379
 380static void mtk_mdp_ctx_state_lock_clear(struct mtk_mdp_ctx *ctx, u32 state)
 381{
 382        mutex_lock(&ctx->slock);
 383        ctx->state &= ~state;
 384        mutex_unlock(&ctx->slock);
 385}
 386
 387static bool mtk_mdp_ctx_state_is_set(struct mtk_mdp_ctx *ctx, u32 mask)
 388{
 389        bool ret;
 390
 391        mutex_lock(&ctx->slock);
 392        ret = (ctx->state & mask) == mask;
 393        mutex_unlock(&ctx->slock);
 394        return ret;
 395}
 396
 397static void mtk_mdp_ctx_lock(struct vb2_queue *vq)
 398{
 399        struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vq);
 400
 401        mutex_lock(&ctx->mdp_dev->lock);
 402}
 403
 404static void mtk_mdp_ctx_unlock(struct vb2_queue *vq)
 405{
 406        struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vq);
 407
 408        mutex_unlock(&ctx->mdp_dev->lock);
 409}
 410
 411static void mtk_mdp_set_frame_size(struct mtk_mdp_frame *frame, int width,
 412                                   int height)
 413{
 414        frame->width = width;
 415        frame->height = height;
 416        frame->crop.width = width;
 417        frame->crop.height = height;
 418        frame->crop.left = 0;
 419        frame->crop.top = 0;
 420}
 421
 422static int mtk_mdp_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
 423{
 424        struct mtk_mdp_ctx *ctx = q->drv_priv;
 425        int ret;
 426
 427        ret = pm_runtime_get_sync(&ctx->mdp_dev->pdev->dev);
 428        if (ret < 0)
 429                mtk_mdp_dbg(1, "[%d] pm_runtime_get_sync failed:%d",
 430                            ctx->id, ret);
 431
 432        return 0;
 433}
 434
 435static void *mtk_mdp_m2m_buf_remove(struct mtk_mdp_ctx *ctx,
 436                                    enum v4l2_buf_type type)
 437{
 438        if (V4L2_TYPE_IS_OUTPUT(type))
 439                return v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
 440        else
 441                return v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
 442}
 443
 444static void mtk_mdp_m2m_stop_streaming(struct vb2_queue *q)
 445{
 446        struct mtk_mdp_ctx *ctx = q->drv_priv;
 447        struct vb2_buffer *vb;
 448
 449        vb = mtk_mdp_m2m_buf_remove(ctx, q->type);
 450        while (vb != NULL) {
 451                v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_ERROR);
 452                vb = mtk_mdp_m2m_buf_remove(ctx, q->type);
 453        }
 454
 455        pm_runtime_put(&ctx->mdp_dev->pdev->dev);
 456}
 457
 458static void mtk_mdp_m2m_job_abort(void *priv)
 459{
 460}
 461
 462/* The color format (num_planes) must be already configured. */
 463static void mtk_mdp_prepare_addr(struct mtk_mdp_ctx *ctx,
 464                                 struct vb2_buffer *vb,
 465                                 struct mtk_mdp_frame *frame,
 466                                 struct mtk_mdp_addr *addr)
 467{
 468        u32 pix_size, planes, i;
 469
 470        pix_size = frame->width * frame->height;
 471        planes = min_t(u32, frame->fmt->num_planes, ARRAY_SIZE(addr->addr));
 472        for (i = 0; i < planes; i++)
 473                addr->addr[i] = vb2_dma_contig_plane_dma_addr(vb, i);
 474
 475        if (planes == 1) {
 476                if (frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420) {
 477                        addr->addr[1] = (dma_addr_t)(addr->addr[0] + pix_size);
 478                        addr->addr[2] = (dma_addr_t)(addr->addr[1] +
 479                                        (pix_size >> 2));
 480                } else {
 481                        dev_err(&ctx->mdp_dev->pdev->dev,
 482                                "Invalid pixelformat:0x%x\n",
 483                                frame->fmt->pixelformat);
 484                }
 485        }
 486        mtk_mdp_dbg(3, "[%d] planes:%d, size:%d, addr:%p,%p,%p",
 487                    ctx->id, planes, pix_size, (void *)addr->addr[0],
 488                    (void *)addr->addr[1], (void *)addr->addr[2]);
 489}
 490
 491static void mtk_mdp_m2m_get_bufs(struct mtk_mdp_ctx *ctx)
 492{
 493        struct mtk_mdp_frame *s_frame, *d_frame;
 494        struct vb2_buffer *src_vb, *dst_vb;
 495        struct vb2_v4l2_buffer *src_vbuf, *dst_vbuf;
 496
 497        s_frame = &ctx->s_frame;
 498        d_frame = &ctx->d_frame;
 499
 500        src_vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
 501        mtk_mdp_prepare_addr(ctx, src_vb, s_frame, &s_frame->addr);
 502
 503        dst_vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
 504        mtk_mdp_prepare_addr(ctx, dst_vb, d_frame, &d_frame->addr);
 505
 506        src_vbuf = to_vb2_v4l2_buffer(src_vb);
 507        dst_vbuf = to_vb2_v4l2_buffer(dst_vb);
 508        dst_vbuf->vb2_buf.timestamp = src_vbuf->vb2_buf.timestamp;
 509}
 510
 511static void mtk_mdp_process_done(void *priv, int vb_state)
 512{
 513        struct mtk_mdp_dev *mdp = priv;
 514        struct mtk_mdp_ctx *ctx;
 515        struct vb2_buffer *src_vb, *dst_vb;
 516        struct vb2_v4l2_buffer *src_vbuf = NULL, *dst_vbuf = NULL;
 517
 518        ctx = v4l2_m2m_get_curr_priv(mdp->m2m_dev);
 519        if (!ctx)
 520                return;
 521
 522        src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
 523        src_vbuf = to_vb2_v4l2_buffer(src_vb);
 524        dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
 525        dst_vbuf = to_vb2_v4l2_buffer(dst_vb);
 526
 527        dst_vbuf->vb2_buf.timestamp = src_vbuf->vb2_buf.timestamp;
 528        dst_vbuf->timecode = src_vbuf->timecode;
 529        dst_vbuf->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
 530        dst_vbuf->flags |= src_vbuf->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
 531
 532        v4l2_m2m_buf_done(src_vbuf, vb_state);
 533        v4l2_m2m_buf_done(dst_vbuf, vb_state);
 534        v4l2_m2m_job_finish(ctx->mdp_dev->m2m_dev, ctx->m2m_ctx);
 535}
 536
 537static void mtk_mdp_m2m_worker(struct work_struct *work)
 538{
 539        struct mtk_mdp_ctx *ctx =
 540                                container_of(work, struct mtk_mdp_ctx, work);
 541        struct mtk_mdp_dev *mdp = ctx->mdp_dev;
 542        enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
 543        int ret;
 544
 545        if (mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_CTX_ERROR)) {
 546                dev_err(&mdp->pdev->dev, "ctx is in error state");
 547                goto worker_end;
 548        }
 549
 550        mtk_mdp_m2m_get_bufs(ctx);
 551
 552        mtk_mdp_hw_set_input_addr(ctx, &ctx->s_frame.addr);
 553        mtk_mdp_hw_set_output_addr(ctx, &ctx->d_frame.addr);
 554
 555        mtk_mdp_hw_set_in_size(ctx);
 556        mtk_mdp_hw_set_in_image_format(ctx);
 557
 558        mtk_mdp_hw_set_out_size(ctx);
 559        mtk_mdp_hw_set_out_image_format(ctx);
 560
 561        mtk_mdp_hw_set_rotation(ctx);
 562        mtk_mdp_hw_set_global_alpha(ctx);
 563
 564        ret = mtk_mdp_vpu_process(&ctx->vpu);
 565        if (ret) {
 566                dev_err(&mdp->pdev->dev, "processing failed: %d", ret);
 567                goto worker_end;
 568        }
 569
 570        buf_state = VB2_BUF_STATE_DONE;
 571
 572worker_end:
 573        mtk_mdp_process_done(mdp, buf_state);
 574}
 575
 576static void mtk_mdp_m2m_device_run(void *priv)
 577{
 578        struct mtk_mdp_ctx *ctx = priv;
 579
 580        queue_work(ctx->mdp_dev->job_wq, &ctx->work);
 581}
 582
 583static int mtk_mdp_m2m_queue_setup(struct vb2_queue *vq,
 584                        unsigned int *num_buffers, unsigned int *num_planes,
 585                        unsigned int sizes[], struct device *alloc_devs[])
 586{
 587        struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vq);
 588        struct mtk_mdp_frame *frame;
 589        int i;
 590
 591        frame = mtk_mdp_ctx_get_frame(ctx, vq->type);
 592        *num_planes = frame->fmt->num_planes;
 593        for (i = 0; i < frame->fmt->num_planes; i++)
 594                sizes[i] = frame->payload[i];
 595        mtk_mdp_dbg(2, "[%d] type:%d, planes:%d, buffers:%d, size:%u,%u",
 596                    ctx->id, vq->type, *num_planes, *num_buffers,
 597                    sizes[0], sizes[1]);
 598        return 0;
 599}
 600
 601static int mtk_mdp_m2m_buf_prepare(struct vb2_buffer *vb)
 602{
 603        struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
 604        struct mtk_mdp_frame *frame;
 605        int i;
 606
 607        frame = mtk_mdp_ctx_get_frame(ctx, vb->vb2_queue->type);
 608
 609        if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
 610                for (i = 0; i < frame->fmt->num_planes; i++)
 611                        vb2_set_plane_payload(vb, i, frame->payload[i]);
 612        }
 613
 614        return 0;
 615}
 616
 617static void mtk_mdp_m2m_buf_queue(struct vb2_buffer *vb)
 618{
 619        struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
 620
 621        v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
 622}
 623
 624static const struct vb2_ops mtk_mdp_m2m_qops = {
 625        .queue_setup     = mtk_mdp_m2m_queue_setup,
 626        .buf_prepare     = mtk_mdp_m2m_buf_prepare,
 627        .buf_queue       = mtk_mdp_m2m_buf_queue,
 628        .wait_prepare    = mtk_mdp_ctx_unlock,
 629        .wait_finish     = mtk_mdp_ctx_lock,
 630        .stop_streaming  = mtk_mdp_m2m_stop_streaming,
 631        .start_streaming = mtk_mdp_m2m_start_streaming,
 632};
 633
 634static int mtk_mdp_m2m_querycap(struct file *file, void *fh,
 635                                struct v4l2_capability *cap)
 636{
 637        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 638        struct mtk_mdp_dev *mdp = ctx->mdp_dev;
 639
 640        strlcpy(cap->driver, MTK_MDP_MODULE_NAME, sizeof(cap->driver));
 641        strlcpy(cap->card, mdp->pdev->name, sizeof(cap->card));
 642        strlcpy(cap->bus_info, "platform:mt8173", sizeof(cap->bus_info));
 643
 644        return 0;
 645}
 646
 647static int mtk_mdp_enum_fmt_mplane(struct v4l2_fmtdesc *f, u32 type)
 648{
 649        const struct mtk_mdp_fmt *fmt;
 650
 651        fmt = mtk_mdp_find_fmt_by_index(f->index, type);
 652        if (!fmt)
 653                return -EINVAL;
 654
 655        f->pixelformat = fmt->pixelformat;
 656
 657        return 0;
 658}
 659
 660static int mtk_mdp_m2m_enum_fmt_mplane_vid_cap(struct file *file, void *priv,
 661                                       struct v4l2_fmtdesc *f)
 662{
 663        return mtk_mdp_enum_fmt_mplane(f, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 664}
 665
 666static int mtk_mdp_m2m_enum_fmt_mplane_vid_out(struct file *file, void *priv,
 667                                       struct v4l2_fmtdesc *f)
 668{
 669        return mtk_mdp_enum_fmt_mplane(f, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 670}
 671
 672static int mtk_mdp_m2m_g_fmt_mplane(struct file *file, void *fh,
 673                                    struct v4l2_format *f)
 674{
 675        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 676        struct mtk_mdp_frame *frame;
 677        struct v4l2_pix_format_mplane *pix_mp;
 678        int i;
 679
 680        mtk_mdp_dbg(2, "[%d] type:%d", ctx->id, f->type);
 681
 682        frame = mtk_mdp_ctx_get_frame(ctx, f->type);
 683        pix_mp = &f->fmt.pix_mp;
 684
 685        pix_mp->width = frame->width;
 686        pix_mp->height = frame->height;
 687        pix_mp->field = V4L2_FIELD_NONE;
 688        pix_mp->pixelformat = frame->fmt->pixelformat;
 689        pix_mp->num_planes = frame->fmt->num_planes;
 690        pix_mp->colorspace = ctx->colorspace;
 691        pix_mp->xfer_func = ctx->xfer_func;
 692        pix_mp->ycbcr_enc = ctx->ycbcr_enc;
 693        pix_mp->quantization = ctx->quant;
 694        mtk_mdp_dbg(2, "[%d] wxh:%dx%d", ctx->id,
 695                    pix_mp->width, pix_mp->height);
 696
 697        for (i = 0; i < pix_mp->num_planes; ++i) {
 698                pix_mp->plane_fmt[i].bytesperline = (frame->width *
 699                        frame->fmt->row_depth[i]) / 8;
 700                pix_mp->plane_fmt[i].sizeimage = (frame->width *
 701                        frame->height * frame->fmt->depth[i]) / 8;
 702
 703                mtk_mdp_dbg(2, "[%d] p%d, bpl:%d, sizeimage:%d", ctx->id, i,
 704                            pix_mp->plane_fmt[i].bytesperline,
 705                            pix_mp->plane_fmt[i].sizeimage);
 706        }
 707
 708        return 0;
 709}
 710
 711static int mtk_mdp_m2m_try_fmt_mplane(struct file *file, void *fh,
 712                                      struct v4l2_format *f)
 713{
 714        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 715
 716        if (!mtk_mdp_try_fmt_mplane(ctx, f))
 717                return -EINVAL;
 718        return 0;
 719}
 720
 721static int mtk_mdp_m2m_s_fmt_mplane(struct file *file, void *fh,
 722                                    struct v4l2_format *f)
 723{
 724        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 725        struct vb2_queue *vq;
 726        struct mtk_mdp_frame *frame;
 727        struct v4l2_pix_format_mplane *pix_mp;
 728        const struct mtk_mdp_fmt *fmt;
 729        int i;
 730
 731        mtk_mdp_dbg(2, "[%d] type:%d", ctx->id, f->type);
 732
 733        frame = mtk_mdp_ctx_get_frame(ctx, f->type);
 734        fmt = mtk_mdp_try_fmt_mplane(ctx, f);
 735        if (!fmt) {
 736                mtk_mdp_err("[%d] try_fmt failed, type:%d", ctx->id, f->type);
 737                return -EINVAL;
 738        }
 739        frame->fmt = fmt;
 740
 741        vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
 742        if (vb2_is_streaming(vq)) {
 743                dev_info(&ctx->mdp_dev->pdev->dev, "queue %d busy", f->type);
 744                return -EBUSY;
 745        }
 746
 747        pix_mp = &f->fmt.pix_mp;
 748        for (i = 0; i < frame->fmt->num_planes; i++) {
 749                frame->payload[i] = pix_mp->plane_fmt[i].sizeimage;
 750                frame->pitch[i] = pix_mp->plane_fmt[i].bytesperline;
 751        }
 752
 753        mtk_mdp_set_frame_size(frame, pix_mp->width, pix_mp->height);
 754        if (V4L2_TYPE_IS_OUTPUT(f->type)) {
 755                ctx->colorspace = pix_mp->colorspace;
 756                ctx->xfer_func = pix_mp->xfer_func;
 757                ctx->ycbcr_enc = pix_mp->ycbcr_enc;
 758                ctx->quant = pix_mp->quantization;
 759        }
 760
 761        if (V4L2_TYPE_IS_OUTPUT(f->type))
 762                mtk_mdp_ctx_state_lock_set(ctx, MTK_MDP_SRC_FMT);
 763        else
 764                mtk_mdp_ctx_state_lock_set(ctx, MTK_MDP_DST_FMT);
 765
 766        mtk_mdp_dbg(2, "[%d] type:%d, frame:%dx%d", ctx->id, f->type,
 767                    frame->width, frame->height);
 768
 769        return 0;
 770}
 771
 772static int mtk_mdp_m2m_reqbufs(struct file *file, void *fh,
 773                               struct v4l2_requestbuffers *reqbufs)
 774{
 775        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 776
 777        if (reqbufs->count == 0) {
 778                if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 779                        mtk_mdp_ctx_state_lock_clear(ctx, MTK_MDP_SRC_FMT);
 780                else
 781                        mtk_mdp_ctx_state_lock_clear(ctx, MTK_MDP_DST_FMT);
 782        }
 783
 784        return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
 785}
 786
 787static int mtk_mdp_m2m_streamon(struct file *file, void *fh,
 788                                enum v4l2_buf_type type)
 789{
 790        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 791        int ret;
 792
 793        /* The source and target color format need to be set */
 794        if (V4L2_TYPE_IS_OUTPUT(type)) {
 795                if (!mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_SRC_FMT))
 796                        return -EINVAL;
 797        } else if (!mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_DST_FMT)) {
 798                return -EINVAL;
 799        }
 800
 801        if (!mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_VPU_INIT)) {
 802                ret = mtk_mdp_vpu_init(&ctx->vpu);
 803                if (ret < 0) {
 804                        dev_err(&ctx->mdp_dev->pdev->dev,
 805                                "vpu init failed %d\n",
 806                                ret);
 807                        return -EINVAL;
 808                }
 809                mtk_mdp_ctx_state_lock_set(ctx, MTK_MDP_VPU_INIT);
 810        }
 811
 812        return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
 813}
 814
 815static inline bool mtk_mdp_is_target_compose(u32 target)
 816{
 817        if (target == V4L2_SEL_TGT_COMPOSE_DEFAULT
 818            || target == V4L2_SEL_TGT_COMPOSE_BOUNDS
 819            || target == V4L2_SEL_TGT_COMPOSE)
 820                return true;
 821        return false;
 822}
 823
 824static inline bool mtk_mdp_is_target_crop(u32 target)
 825{
 826        if (target == V4L2_SEL_TGT_CROP_DEFAULT
 827            || target == V4L2_SEL_TGT_CROP_BOUNDS
 828            || target == V4L2_SEL_TGT_CROP)
 829                return true;
 830        return false;
 831}
 832
 833static int mtk_mdp_m2m_g_selection(struct file *file, void *fh,
 834                                       struct v4l2_selection *s)
 835{
 836        struct mtk_mdp_frame *frame;
 837        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 838        bool valid = false;
 839
 840        if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 841                if (mtk_mdp_is_target_compose(s->target))
 842                        valid = true;
 843        } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
 844                if (mtk_mdp_is_target_crop(s->target))
 845                        valid = true;
 846        }
 847        if (!valid) {
 848                mtk_mdp_dbg(1, "[%d] invalid type:%d,%u", ctx->id, s->type,
 849                            s->target);
 850                return -EINVAL;
 851        }
 852
 853        frame = mtk_mdp_ctx_get_frame(ctx, s->type);
 854
 855        switch (s->target) {
 856        case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 857        case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 858        case V4L2_SEL_TGT_CROP_BOUNDS:
 859        case V4L2_SEL_TGT_CROP_DEFAULT:
 860                s->r.left = 0;
 861                s->r.top = 0;
 862                s->r.width = frame->width;
 863                s->r.height = frame->height;
 864                return 0;
 865
 866        case V4L2_SEL_TGT_COMPOSE:
 867        case V4L2_SEL_TGT_CROP:
 868                s->r.left = frame->crop.left;
 869                s->r.top = frame->crop.top;
 870                s->r.width = frame->crop.width;
 871                s->r.height = frame->crop.height;
 872                return 0;
 873        }
 874
 875        return -EINVAL;
 876}
 877
 878static int mtk_mdp_check_scaler_ratio(struct mtk_mdp_variant *var, int src_w,
 879                                      int src_h, int dst_w, int dst_h, int rot)
 880{
 881        int tmp_w, tmp_h;
 882
 883        if (rot == 90 || rot == 270) {
 884                tmp_w = dst_h;
 885                tmp_h = dst_w;
 886        } else {
 887                tmp_w = dst_w;
 888                tmp_h = dst_h;
 889        }
 890
 891        if ((src_w / tmp_w) > var->h_scale_down_max ||
 892            (src_h / tmp_h) > var->v_scale_down_max ||
 893            (tmp_w / src_w) > var->h_scale_up_max ||
 894            (tmp_h / src_h) > var->v_scale_up_max)
 895                return -EINVAL;
 896
 897        return 0;
 898}
 899
 900static int mtk_mdp_m2m_s_selection(struct file *file, void *fh,
 901                                   struct v4l2_selection *s)
 902{
 903        struct mtk_mdp_frame *frame;
 904        struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
 905        struct v4l2_rect new_r;
 906        struct mtk_mdp_variant *variant = ctx->mdp_dev->variant;
 907        int ret;
 908        bool valid = false;
 909
 910        if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 911                if (s->target == V4L2_SEL_TGT_COMPOSE)
 912                        valid = true;
 913        } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
 914                if (s->target == V4L2_SEL_TGT_CROP)
 915                        valid = true;
 916        }
 917        if (!valid) {
 918                mtk_mdp_dbg(1, "[%d] invalid type:%d,%u", ctx->id, s->type,
 919                            s->target);
 920                return -EINVAL;
 921        }
 922
 923        new_r = s->r;
 924        ret = mtk_mdp_try_crop(ctx, s->type, &new_r);
 925        if (ret)
 926                return ret;
 927
 928        if (mtk_mdp_is_target_crop(s->target))
 929                frame = &ctx->s_frame;
 930        else
 931                frame = &ctx->d_frame;
 932
 933        /* Check to see if scaling ratio is within supported range */
 934        if (mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_DST_FMT | MTK_MDP_SRC_FMT)) {
 935                if (V4L2_TYPE_IS_OUTPUT(s->type)) {
 936                        ret = mtk_mdp_check_scaler_ratio(variant, new_r.width,
 937                                new_r.height, ctx->d_frame.crop.width,
 938                                ctx->d_frame.crop.height,
 939                                ctx->ctrls.rotate->val);
 940                } else {
 941                        ret = mtk_mdp_check_scaler_ratio(variant,
 942                                ctx->s_frame.crop.width,
 943                                ctx->s_frame.crop.height, new_r.width,
 944                                new_r.height, ctx->ctrls.rotate->val);
 945                }
 946
 947                if (ret) {
 948                        dev_info(&ctx->mdp_dev->pdev->dev,
 949                                "Out of scaler range");
 950                        return -EINVAL;
 951                }
 952        }
 953
 954        s->r = new_r;
 955        frame->crop = new_r;
 956
 957        return 0;
 958}
 959
 960static const struct v4l2_ioctl_ops mtk_mdp_m2m_ioctl_ops = {
 961        .vidioc_querycap                = mtk_mdp_m2m_querycap,
 962        .vidioc_enum_fmt_vid_cap_mplane = mtk_mdp_m2m_enum_fmt_mplane_vid_cap,
 963        .vidioc_enum_fmt_vid_out_mplane = mtk_mdp_m2m_enum_fmt_mplane_vid_out,
 964        .vidioc_g_fmt_vid_cap_mplane    = mtk_mdp_m2m_g_fmt_mplane,
 965        .vidioc_g_fmt_vid_out_mplane    = mtk_mdp_m2m_g_fmt_mplane,
 966        .vidioc_try_fmt_vid_cap_mplane  = mtk_mdp_m2m_try_fmt_mplane,
 967        .vidioc_try_fmt_vid_out_mplane  = mtk_mdp_m2m_try_fmt_mplane,
 968        .vidioc_s_fmt_vid_cap_mplane    = mtk_mdp_m2m_s_fmt_mplane,
 969        .vidioc_s_fmt_vid_out_mplane    = mtk_mdp_m2m_s_fmt_mplane,
 970        .vidioc_reqbufs                 = mtk_mdp_m2m_reqbufs,
 971        .vidioc_create_bufs             = v4l2_m2m_ioctl_create_bufs,
 972        .vidioc_expbuf                  = v4l2_m2m_ioctl_expbuf,
 973        .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
 974        .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
 975        .vidioc_querybuf                = v4l2_m2m_ioctl_querybuf,
 976        .vidioc_qbuf                    = v4l2_m2m_ioctl_qbuf,
 977        .vidioc_dqbuf                   = v4l2_m2m_ioctl_dqbuf,
 978        .vidioc_streamon                = mtk_mdp_m2m_streamon,
 979        .vidioc_streamoff               = v4l2_m2m_ioctl_streamoff,
 980        .vidioc_g_selection             = mtk_mdp_m2m_g_selection,
 981        .vidioc_s_selection             = mtk_mdp_m2m_s_selection
 982};
 983
 984static int mtk_mdp_m2m_queue_init(void *priv, struct vb2_queue *src_vq,
 985                                  struct vb2_queue *dst_vq)
 986{
 987        struct mtk_mdp_ctx *ctx = priv;
 988        int ret;
 989
 990        memset(src_vq, 0, sizeof(*src_vq));
 991        src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 992        src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
 993        src_vq->drv_priv = ctx;
 994        src_vq->ops = &mtk_mdp_m2m_qops;
 995        src_vq->mem_ops = &vb2_dma_contig_memops;
 996        src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
 997        src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
 998        src_vq->dev = &ctx->mdp_dev->pdev->dev;
 999
1000        ret = vb2_queue_init(src_vq);
1001        if (ret)
1002                return ret;
1003
1004        memset(dst_vq, 0, sizeof(*dst_vq));
1005        dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1006        dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1007        dst_vq->drv_priv = ctx;
1008        dst_vq->ops = &mtk_mdp_m2m_qops;
1009        dst_vq->mem_ops = &vb2_dma_contig_memops;
1010        dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1011        dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1012        dst_vq->dev = &ctx->mdp_dev->pdev->dev;
1013
1014        return vb2_queue_init(dst_vq);
1015}
1016
1017static int mtk_mdp_s_ctrl(struct v4l2_ctrl *ctrl)
1018{
1019        struct mtk_mdp_ctx *ctx = ctrl_to_ctx(ctrl);
1020        struct mtk_mdp_dev *mdp = ctx->mdp_dev;
1021        struct mtk_mdp_variant *variant = mdp->variant;
1022        u32 state = MTK_MDP_DST_FMT | MTK_MDP_SRC_FMT;
1023        int ret = 0;
1024
1025        if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE)
1026                return 0;
1027
1028        switch (ctrl->id) {
1029        case V4L2_CID_HFLIP:
1030                ctx->hflip = ctrl->val;
1031                break;
1032        case V4L2_CID_VFLIP:
1033                ctx->vflip = ctrl->val;
1034                break;
1035        case V4L2_CID_ROTATE:
1036                if (mtk_mdp_ctx_state_is_set(ctx, state)) {
1037                        ret = mtk_mdp_check_scaler_ratio(variant,
1038                                        ctx->s_frame.crop.width,
1039                                        ctx->s_frame.crop.height,
1040                                        ctx->d_frame.crop.width,
1041                                        ctx->d_frame.crop.height,
1042                                        ctx->ctrls.rotate->val);
1043
1044                        if (ret)
1045                                return -EINVAL;
1046                }
1047
1048                ctx->rotation = ctrl->val;
1049                break;
1050        case V4L2_CID_ALPHA_COMPONENT:
1051                ctx->d_frame.alpha = ctrl->val;
1052                break;
1053        }
1054
1055        return 0;
1056}
1057
1058static const struct v4l2_ctrl_ops mtk_mdp_ctrl_ops = {
1059        .s_ctrl = mtk_mdp_s_ctrl,
1060};
1061
1062static int mtk_mdp_ctrls_create(struct mtk_mdp_ctx *ctx)
1063{
1064        v4l2_ctrl_handler_init(&ctx->ctrl_handler, MTK_MDP_MAX_CTRL_NUM);
1065
1066        ctx->ctrls.rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1067                        &mtk_mdp_ctrl_ops, V4L2_CID_ROTATE, 0, 270, 90, 0);
1068        ctx->ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1069                                             &mtk_mdp_ctrl_ops,
1070                                             V4L2_CID_HFLIP,
1071                                             0, 1, 1, 0);
1072        ctx->ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1073                                             &mtk_mdp_ctrl_ops,
1074                                             V4L2_CID_VFLIP,
1075                                             0, 1, 1, 0);
1076        ctx->ctrls.global_alpha = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1077                                                    &mtk_mdp_ctrl_ops,
1078                                                    V4L2_CID_ALPHA_COMPONENT,
1079                                                    0, 255, 1, 0);
1080        ctx->ctrls_rdy = ctx->ctrl_handler.error == 0;
1081
1082        if (ctx->ctrl_handler.error) {
1083                int err = ctx->ctrl_handler.error;
1084
1085                v4l2_ctrl_handler_free(&ctx->ctrl_handler);
1086                dev_err(&ctx->mdp_dev->pdev->dev,
1087                        "Failed to create control handlers\n");
1088                return err;
1089        }
1090
1091        return 0;
1092}
1093
1094static void mtk_mdp_set_default_params(struct mtk_mdp_ctx *ctx)
1095{
1096        struct mtk_mdp_dev *mdp = ctx->mdp_dev;
1097        struct mtk_mdp_frame *frame;
1098
1099        frame = mtk_mdp_ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
1100        frame->fmt = mtk_mdp_find_fmt_by_index(0,
1101                                        V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
1102        frame->width = mdp->variant->pix_min->org_w;
1103        frame->height = mdp->variant->pix_min->org_h;
1104        frame->payload[0] = frame->width * frame->height;
1105        frame->payload[1] = frame->payload[0] / 2;
1106
1107        frame = mtk_mdp_ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
1108        frame->fmt = mtk_mdp_find_fmt_by_index(0,
1109                                        V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
1110        frame->width = mdp->variant->pix_min->target_rot_dis_w;
1111        frame->height = mdp->variant->pix_min->target_rot_dis_h;
1112        frame->payload[0] = frame->width * frame->height;
1113        frame->payload[1] = frame->payload[0] / 2;
1114
1115}
1116
1117static int mtk_mdp_m2m_open(struct file *file)
1118{
1119        struct mtk_mdp_dev *mdp = video_drvdata(file);
1120        struct video_device *vfd = video_devdata(file);
1121        struct mtk_mdp_ctx *ctx = NULL;
1122        int ret;
1123
1124        ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1125        if (!ctx)
1126                return -ENOMEM;
1127
1128        if (mutex_lock_interruptible(&mdp->lock)) {
1129                ret = -ERESTARTSYS;
1130                goto err_lock;
1131        }
1132
1133        mutex_init(&ctx->slock);
1134        ctx->id = mdp->id_counter++;
1135        v4l2_fh_init(&ctx->fh, vfd);
1136        file->private_data = &ctx->fh;
1137        ret = mtk_mdp_ctrls_create(ctx);
1138        if (ret)
1139                goto error_ctrls;
1140
1141        /* Use separate control handler per file handle */
1142        ctx->fh.ctrl_handler = &ctx->ctrl_handler;
1143        v4l2_fh_add(&ctx->fh);
1144        INIT_LIST_HEAD(&ctx->list);
1145
1146        ctx->mdp_dev = mdp;
1147        mtk_mdp_set_default_params(ctx);
1148
1149        INIT_WORK(&ctx->work, mtk_mdp_m2m_worker);
1150        ctx->m2m_ctx = v4l2_m2m_ctx_init(mdp->m2m_dev, ctx,
1151                                         mtk_mdp_m2m_queue_init);
1152        if (IS_ERR(ctx->m2m_ctx)) {
1153                dev_err(&mdp->pdev->dev, "Failed to initialize m2m context");
1154                ret = PTR_ERR(ctx->m2m_ctx);
1155                goto error_m2m_ctx;
1156        }
1157        ctx->fh.m2m_ctx = ctx->m2m_ctx;
1158        if (mdp->ctx_num++ == 0) {
1159                ret = vpu_load_firmware(mdp->vpu_dev);
1160                if (ret < 0) {
1161                        dev_err(&mdp->pdev->dev,
1162                                "vpu_load_firmware failed %d\n", ret);
1163                        goto err_load_vpu;
1164                }
1165
1166                ret = mtk_mdp_vpu_register(mdp->pdev);
1167                if (ret < 0) {
1168                        dev_err(&mdp->pdev->dev,
1169                                "mdp_vpu register failed %d\n", ret);
1170                        goto err_load_vpu;
1171                }
1172        }
1173
1174        list_add(&ctx->list, &mdp->ctx_list);
1175        mutex_unlock(&mdp->lock);
1176
1177        mtk_mdp_dbg(0, "%s [%d]", dev_name(&mdp->pdev->dev), ctx->id);
1178
1179        return 0;
1180
1181err_load_vpu:
1182        mdp->ctx_num--;
1183        v4l2_m2m_ctx_release(ctx->m2m_ctx);
1184error_m2m_ctx:
1185        v4l2_ctrl_handler_free(&ctx->ctrl_handler);
1186error_ctrls:
1187        v4l2_fh_del(&ctx->fh);
1188        v4l2_fh_exit(&ctx->fh);
1189        mutex_unlock(&mdp->lock);
1190err_lock:
1191        kfree(ctx);
1192
1193        return ret;
1194}
1195
1196static int mtk_mdp_m2m_release(struct file *file)
1197{
1198        struct mtk_mdp_ctx *ctx = fh_to_ctx(file->private_data);
1199        struct mtk_mdp_dev *mdp = ctx->mdp_dev;
1200
1201        flush_workqueue(mdp->job_wq);
1202        mutex_lock(&mdp->lock);
1203        v4l2_m2m_ctx_release(ctx->m2m_ctx);
1204        v4l2_ctrl_handler_free(&ctx->ctrl_handler);
1205        v4l2_fh_del(&ctx->fh);
1206        v4l2_fh_exit(&ctx->fh);
1207        mtk_mdp_vpu_deinit(&ctx->vpu);
1208        mdp->ctx_num--;
1209        list_del_init(&ctx->list);
1210
1211        mtk_mdp_dbg(0, "%s [%d]", dev_name(&mdp->pdev->dev), ctx->id);
1212
1213        mutex_unlock(&mdp->lock);
1214        kfree(ctx);
1215
1216        return 0;
1217}
1218
1219static const struct v4l2_file_operations mtk_mdp_m2m_fops = {
1220        .owner          = THIS_MODULE,
1221        .open           = mtk_mdp_m2m_open,
1222        .release        = mtk_mdp_m2m_release,
1223        .poll           = v4l2_m2m_fop_poll,
1224        .unlocked_ioctl = video_ioctl2,
1225        .mmap           = v4l2_m2m_fop_mmap,
1226};
1227
1228static const struct v4l2_m2m_ops mtk_mdp_m2m_ops = {
1229        .device_run     = mtk_mdp_m2m_device_run,
1230        .job_abort      = mtk_mdp_m2m_job_abort,
1231};
1232
1233int mtk_mdp_register_m2m_device(struct mtk_mdp_dev *mdp)
1234{
1235        struct device *dev = &mdp->pdev->dev;
1236        int ret;
1237
1238        mdp->variant = &mtk_mdp_default_variant;
1239        mdp->vdev = video_device_alloc();
1240        if (!mdp->vdev) {
1241                dev_err(dev, "failed to allocate video device\n");
1242                ret = -ENOMEM;
1243                goto err_video_alloc;
1244        }
1245        mdp->vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1246        mdp->vdev->fops = &mtk_mdp_m2m_fops;
1247        mdp->vdev->ioctl_ops = &mtk_mdp_m2m_ioctl_ops;
1248        mdp->vdev->release = video_device_release;
1249        mdp->vdev->lock = &mdp->lock;
1250        mdp->vdev->vfl_dir = VFL_DIR_M2M;
1251        mdp->vdev->v4l2_dev = &mdp->v4l2_dev;
1252        snprintf(mdp->vdev->name, sizeof(mdp->vdev->name), "%s:m2m",
1253                 MTK_MDP_MODULE_NAME);
1254        video_set_drvdata(mdp->vdev, mdp);
1255
1256        mdp->m2m_dev = v4l2_m2m_init(&mtk_mdp_m2m_ops);
1257        if (IS_ERR(mdp->m2m_dev)) {
1258                dev_err(dev, "failed to initialize v4l2-m2m device\n");
1259                ret = PTR_ERR(mdp->m2m_dev);
1260                goto err_m2m_init;
1261        }
1262
1263        ret = video_register_device(mdp->vdev, VFL_TYPE_GRABBER, 2);
1264        if (ret) {
1265                dev_err(dev, "failed to register video device\n");
1266                goto err_vdev_register;
1267        }
1268
1269        v4l2_info(&mdp->v4l2_dev, "driver registered as /dev/video%d",
1270                  mdp->vdev->num);
1271        return 0;
1272
1273err_vdev_register:
1274        v4l2_m2m_release(mdp->m2m_dev);
1275err_m2m_init:
1276        video_device_release(mdp->vdev);
1277err_video_alloc:
1278
1279        return ret;
1280}
1281
1282void mtk_mdp_unregister_m2m_device(struct mtk_mdp_dev *mdp)
1283{
1284        video_unregister_device(mdp->vdev);
1285        v4l2_m2m_release(mdp->m2m_dev);
1286}
1287