// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2015-2016 MediaTek Inc.
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* Author: Houlong Wei <houlong.wei@mediatek.com>
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* Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
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*/
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <media/v4l2-event.h>
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#include <media/v4l2-ioctl.h>
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#include "mtk_mdp_core.h"
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#include "mtk_mdp_m2m.h"
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#include "mtk_mdp_regs.h"
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#include "mtk_vpu.h"
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/**
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* struct mtk_mdp_pix_limit - image pixel size limits
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* @org_w: source pixel width
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* @org_h: source pixel height
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* @target_rot_dis_w: pixel dst scaled width with the rotator is off
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* @target_rot_dis_h: pixel dst scaled height with the rotator is off
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* @target_rot_en_w: pixel dst scaled width with the rotator is on
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* @target_rot_en_h: pixel dst scaled height with the rotator is on
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*/
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struct mtk_mdp_pix_limit {
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u16 org_w;
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u16 org_h;
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u16 target_rot_dis_w;
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u16 target_rot_dis_h;
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u16 target_rot_en_w;
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u16 target_rot_en_h;
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};
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static struct mtk_mdp_pix_align mtk_mdp_size_align = {
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.org_w = 16,
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.org_h = 16,
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.target_w = 2,
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.target_h = 2,
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};
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static const struct mtk_mdp_fmt mtk_mdp_formats[] = {
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{
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.pixelformat = V4L2_PIX_FMT_MT21C,
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.depth = { 8, 4 },
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.row_depth = { 8, 8 },
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.num_planes = 2,
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.num_comp = 2,
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.align = &mtk_mdp_size_align,
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.flags = MTK_MDP_FMT_FLAG_OUTPUT,
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}, {
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.pixelformat = V4L2_PIX_FMT_NV12M,
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.depth = { 8, 4 },
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.row_depth = { 8, 8 },
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.num_planes = 2,
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.num_comp = 2,
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.flags = MTK_MDP_FMT_FLAG_OUTPUT |
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MTK_MDP_FMT_FLAG_CAPTURE,
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}, {
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.pixelformat = V4L2_PIX_FMT_YUV420M,
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.depth = { 8, 2, 2 },
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.row_depth = { 8, 4, 4 },
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.num_planes = 3,
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.num_comp = 3,
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.flags = MTK_MDP_FMT_FLAG_OUTPUT |
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MTK_MDP_FMT_FLAG_CAPTURE,
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}, {
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.pixelformat = V4L2_PIX_FMT_YVU420,
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.depth = { 12 },
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.row_depth = { 8 },
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.num_planes = 1,
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.num_comp = 3,
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.flags = MTK_MDP_FMT_FLAG_OUTPUT |
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MTK_MDP_FMT_FLAG_CAPTURE,
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}
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};
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static struct mtk_mdp_pix_limit mtk_mdp_size_max = {
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.target_rot_dis_w = 4096,
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.target_rot_dis_h = 4096,
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.target_rot_en_w = 4096,
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.target_rot_en_h = 4096,
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};
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static struct mtk_mdp_pix_limit mtk_mdp_size_min = {
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.org_w = 16,
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.org_h = 16,
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.target_rot_dis_w = 16,
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.target_rot_dis_h = 16,
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.target_rot_en_w = 16,
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.target_rot_en_h = 16,
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};
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/* align size for normal raster scan pixel format */
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static struct mtk_mdp_pix_align mtk_mdp_rs_align = {
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.org_w = 2,
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.org_h = 2,
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.target_w = 2,
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.target_h = 2,
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};
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static struct mtk_mdp_variant mtk_mdp_default_variant = {
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.pix_max = &mtk_mdp_size_max,
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.pix_min = &mtk_mdp_size_min,
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.pix_align = &mtk_mdp_rs_align,
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.h_scale_up_max = 32,
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.v_scale_up_max = 32,
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.h_scale_down_max = 32,
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.v_scale_down_max = 128,
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};
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static const struct mtk_mdp_fmt *mtk_mdp_find_fmt(u32 pixelformat, u32 type)
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{
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u32 i, flag;
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flag = V4L2_TYPE_IS_OUTPUT(type) ? MTK_MDP_FMT_FLAG_OUTPUT :
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MTK_MDP_FMT_FLAG_CAPTURE;
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for (i = 0; i < ARRAY_SIZE(mtk_mdp_formats); ++i) {
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if (!(mtk_mdp_formats[i].flags & flag))
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continue;
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if (mtk_mdp_formats[i].pixelformat == pixelformat)
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return &mtk_mdp_formats[i];
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}
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return NULL;
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}
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static const struct mtk_mdp_fmt *mtk_mdp_find_fmt_by_index(u32 index, u32 type)
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{
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u32 i, flag, num = 0;
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flag = V4L2_TYPE_IS_OUTPUT(type) ? MTK_MDP_FMT_FLAG_OUTPUT :
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MTK_MDP_FMT_FLAG_CAPTURE;
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for (i = 0; i < ARRAY_SIZE(mtk_mdp_formats); ++i) {
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if (!(mtk_mdp_formats[i].flags & flag))
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continue;
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if (index == num)
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return &mtk_mdp_formats[i];
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num++;
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}
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return NULL;
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}
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static void mtk_mdp_bound_align_image(u32 *w, unsigned int wmin,
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unsigned int wmax, unsigned int align_w,
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u32 *h, unsigned int hmin,
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unsigned int hmax, unsigned int align_h)
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{
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int org_w, org_h, step_w, step_h;
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int walign, halign;
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org_w = *w;
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org_h = *h;
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walign = ffs(align_w) - 1;
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halign = ffs(align_h) - 1;
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v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0);
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step_w = 1 << walign;
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step_h = 1 << halign;
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if (*w < org_w && (*w + step_w) <= wmax)
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*w += step_w;
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if (*h < org_h && (*h + step_h) <= hmax)
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*h += step_h;
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}
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static const struct mtk_mdp_fmt *mtk_mdp_try_fmt_mplane(struct mtk_mdp_ctx *ctx,
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struct v4l2_format *f)
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{
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struct mtk_mdp_dev *mdp = ctx->mdp_dev;
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struct mtk_mdp_variant *variant = mdp->variant;
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struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
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const struct mtk_mdp_fmt *fmt;
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u32 max_w, max_h, align_w, align_h;
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u32 min_w, min_h, org_w, org_h;
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int i;
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fmt = mtk_mdp_find_fmt(pix_mp->pixelformat, f->type);
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if (!fmt)
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fmt = mtk_mdp_find_fmt_by_index(0, f->type);
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if (!fmt) {
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dev_dbg(&ctx->mdp_dev->pdev->dev,
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"pixelformat format 0x%X invalid\n",
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pix_mp->pixelformat);
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return NULL;
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}
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pix_mp->field = V4L2_FIELD_NONE;
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pix_mp->pixelformat = fmt->pixelformat;
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if (V4L2_TYPE_IS_CAPTURE(f->type)) {
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pix_mp->colorspace = ctx->colorspace;
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pix_mp->xfer_func = ctx->xfer_func;
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pix_mp->ycbcr_enc = ctx->ycbcr_enc;
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pix_mp->quantization = ctx->quant;
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}
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memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
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max_w = variant->pix_max->target_rot_dis_w;
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max_h = variant->pix_max->target_rot_dis_h;
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if (fmt->align == NULL) {
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/* use default alignment */
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align_w = variant->pix_align->org_w;
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align_h = variant->pix_align->org_h;
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} else {
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align_w = fmt->align->org_w;
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align_h = fmt->align->org_h;
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}
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if (V4L2_TYPE_IS_OUTPUT(f->type)) {
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min_w = variant->pix_min->org_w;
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min_h = variant->pix_min->org_h;
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} else {
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min_w = variant->pix_min->target_rot_dis_w;
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min_h = variant->pix_min->target_rot_dis_h;
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}
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mtk_mdp_dbg(2, "[%d] type:%d, wxh:%ux%u, align:%ux%u, max:%ux%u",
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ctx->id, f->type, pix_mp->width, pix_mp->height,
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align_w, align_h, max_w, max_h);
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/*
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* To check if image size is modified to adjust parameter against
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* hardware abilities
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*/
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org_w = pix_mp->width;
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org_h = pix_mp->height;
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mtk_mdp_bound_align_image(&pix_mp->width, min_w, max_w, align_w,
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&pix_mp->height, min_h, max_h, align_h);
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if (org_w != pix_mp->width || org_h != pix_mp->height)
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mtk_mdp_dbg(1, "[%d] size change:%ux%u to %ux%u", ctx->id,
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org_w, org_h, pix_mp->width, pix_mp->height);
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pix_mp->num_planes = fmt->num_planes;
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for (i = 0; i < pix_mp->num_planes; ++i) {
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int bpl = (pix_mp->width * fmt->row_depth[i]) / 8;
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int sizeimage = (pix_mp->width * pix_mp->height *
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fmt->depth[i]) / 8;
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pix_mp->plane_fmt[i].bytesperline = bpl;
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if (pix_mp->plane_fmt[i].sizeimage < sizeimage)
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pix_mp->plane_fmt[i].sizeimage = sizeimage;
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memset(pix_mp->plane_fmt[i].reserved, 0,
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sizeof(pix_mp->plane_fmt[i].reserved));
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mtk_mdp_dbg(2, "[%d] p%d, bpl:%d, sizeimage:%u (%u)", ctx->id,
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i, bpl, pix_mp->plane_fmt[i].sizeimage, sizeimage);
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}
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return fmt;
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}
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static struct mtk_mdp_frame *mtk_mdp_ctx_get_frame(struct mtk_mdp_ctx *ctx,
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enum v4l2_buf_type type)
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{
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if (V4L2_TYPE_IS_OUTPUT(type))
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return &ctx->s_frame;
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return &ctx->d_frame;
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}
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static void mtk_mdp_check_crop_change(u32 new_w, u32 new_h, u32 *w, u32 *h)
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{
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if (new_w != *w || new_h != *h) {
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mtk_mdp_dbg(1, "size change:%dx%d to %dx%d",
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*w, *h, new_w, new_h);
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*w = new_w;
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*h = new_h;
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}
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}
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static int mtk_mdp_try_crop(struct mtk_mdp_ctx *ctx, u32 type,
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struct v4l2_rect *r)
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{
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struct mtk_mdp_frame *frame;
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struct mtk_mdp_dev *mdp = ctx->mdp_dev;
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struct mtk_mdp_variant *variant = mdp->variant;
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u32 align_w, align_h, new_w, new_h;
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u32 min_w, min_h, max_w, max_h;
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if (r->top < 0 || r->left < 0) {
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dev_err(&ctx->mdp_dev->pdev->dev,
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"doesn't support negative values for top & left\n");
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return -EINVAL;
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}
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mtk_mdp_dbg(2, "[%d] type:%d, set wxh:%dx%d", ctx->id, type,
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r->width, r->height);
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frame = mtk_mdp_ctx_get_frame(ctx, type);
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max_w = frame->width;
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max_h = frame->height;
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new_w = r->width;
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new_h = r->height;
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if (V4L2_TYPE_IS_OUTPUT(type)) {
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align_w = 1;
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align_h = 1;
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min_w = 64;
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min_h = 32;
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} else {
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align_w = variant->pix_align->target_w;
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align_h = variant->pix_align->target_h;
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if (ctx->ctrls.rotate->val == 90 ||
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ctx->ctrls.rotate->val == 270) {
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max_w = frame->height;
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max_h = frame->width;
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min_w = variant->pix_min->target_rot_en_w;
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min_h = variant->pix_min->target_rot_en_h;
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new_w = r->height;
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new_h = r->width;
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} else {
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min_w = variant->pix_min->target_rot_dis_w;
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min_h = variant->pix_min->target_rot_dis_h;
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}
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}
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mtk_mdp_dbg(2, "[%d] align:%dx%d, min:%dx%d, new:%dx%d", ctx->id,
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align_w, align_h, min_w, min_h, new_w, new_h);
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mtk_mdp_bound_align_image(&new_w, min_w, max_w, align_w,
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&new_h, min_h, max_h, align_h);
|
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if (V4L2_TYPE_IS_CAPTURE(type) &&
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(ctx->ctrls.rotate->val == 90 || ctx->ctrls.rotate->val == 270))
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mtk_mdp_check_crop_change(new_h, new_w,
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&r->width, &r->height);
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else
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mtk_mdp_check_crop_change(new_w, new_h,
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&r->width, &r->height);
|
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/* adjust left/top if cropping rectangle is out of bounds */
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/* Need to add code to algin left value with 2's multiple */
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if (r->left + new_w > max_w)
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r->left = max_w - new_w;
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if (r->top + new_h > max_h)
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r->top = max_h - new_h;
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if (r->left & 1)
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r->left -= 1;
|
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mtk_mdp_dbg(2, "[%d] crop l,t,w,h:%d,%d,%d,%d, max:%dx%d", ctx->id,
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r->left, r->top, r->width,
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r->height, max_w, max_h);
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return 0;
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}
|
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static inline struct mtk_mdp_ctx *fh_to_ctx(struct v4l2_fh *fh)
|
{
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return container_of(fh, struct mtk_mdp_ctx, fh);
|
}
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|
static inline struct mtk_mdp_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
|
{
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return container_of(ctrl->handler, struct mtk_mdp_ctx, ctrl_handler);
|
}
|
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void mtk_mdp_ctx_state_lock_set(struct mtk_mdp_ctx *ctx, u32 state)
|
{
|
mutex_lock(&ctx->slock);
|
ctx->state |= state;
|
mutex_unlock(&ctx->slock);
|
}
|
|
static bool mtk_mdp_ctx_state_is_set(struct mtk_mdp_ctx *ctx, u32 mask)
|
{
|
bool ret;
|
|
mutex_lock(&ctx->slock);
|
ret = (ctx->state & mask) == mask;
|
mutex_unlock(&ctx->slock);
|
return ret;
|
}
|
|
static void mtk_mdp_set_frame_size(struct mtk_mdp_frame *frame, int width,
|
int height)
|
{
|
frame->width = width;
|
frame->height = height;
|
frame->crop.width = width;
|
frame->crop.height = height;
|
frame->crop.left = 0;
|
frame->crop.top = 0;
|
}
|
|
static int mtk_mdp_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
|
{
|
struct mtk_mdp_ctx *ctx = q->drv_priv;
|
int ret;
|
|
ret = pm_runtime_resume_and_get(&ctx->mdp_dev->pdev->dev);
|
if (ret < 0)
|
mtk_mdp_dbg(1, "[%d] pm_runtime_resume_and_get failed:%d",
|
ctx->id, ret);
|
|
return ret;
|
}
|
|
static void *mtk_mdp_m2m_buf_remove(struct mtk_mdp_ctx *ctx,
|
enum v4l2_buf_type type)
|
{
|
if (V4L2_TYPE_IS_OUTPUT(type))
|
return v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
|
else
|
return v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
|
}
|
|
static void mtk_mdp_m2m_stop_streaming(struct vb2_queue *q)
|
{
|
struct mtk_mdp_ctx *ctx = q->drv_priv;
|
struct vb2_buffer *vb;
|
|
vb = mtk_mdp_m2m_buf_remove(ctx, q->type);
|
while (vb != NULL) {
|
v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_ERROR);
|
vb = mtk_mdp_m2m_buf_remove(ctx, q->type);
|
}
|
|
pm_runtime_put(&ctx->mdp_dev->pdev->dev);
|
}
|
|
/* The color format (num_planes) must be already configured. */
|
static void mtk_mdp_prepare_addr(struct mtk_mdp_ctx *ctx,
|
struct vb2_buffer *vb,
|
struct mtk_mdp_frame *frame,
|
struct mtk_mdp_addr *addr)
|
{
|
u32 pix_size, planes, i;
|
|
pix_size = frame->width * frame->height;
|
planes = min_t(u32, frame->fmt->num_planes, ARRAY_SIZE(addr->addr));
|
for (i = 0; i < planes; i++)
|
addr->addr[i] = vb2_dma_contig_plane_dma_addr(vb, i);
|
|
if (planes == 1) {
|
if (frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420) {
|
addr->addr[1] = (dma_addr_t)(addr->addr[0] + pix_size);
|
addr->addr[2] = (dma_addr_t)(addr->addr[1] +
|
(pix_size >> 2));
|
} else {
|
dev_err(&ctx->mdp_dev->pdev->dev,
|
"Invalid pixelformat:0x%x\n",
|
frame->fmt->pixelformat);
|
}
|
}
|
mtk_mdp_dbg(3, "[%d] planes:%d, size:%d, addr:%p,%p,%p",
|
ctx->id, planes, pix_size, (void *)addr->addr[0],
|
(void *)addr->addr[1], (void *)addr->addr[2]);
|
}
|
|
static void mtk_mdp_m2m_get_bufs(struct mtk_mdp_ctx *ctx)
|
{
|
struct mtk_mdp_frame *s_frame, *d_frame;
|
struct vb2_v4l2_buffer *src_vbuf, *dst_vbuf;
|
|
s_frame = &ctx->s_frame;
|
d_frame = &ctx->d_frame;
|
|
src_vbuf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
|
mtk_mdp_prepare_addr(ctx, &src_vbuf->vb2_buf, s_frame, &s_frame->addr);
|
|
dst_vbuf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
|
mtk_mdp_prepare_addr(ctx, &dst_vbuf->vb2_buf, d_frame, &d_frame->addr);
|
|
dst_vbuf->vb2_buf.timestamp = src_vbuf->vb2_buf.timestamp;
|
}
|
|
static void mtk_mdp_process_done(void *priv, int vb_state)
|
{
|
struct mtk_mdp_dev *mdp = priv;
|
struct mtk_mdp_ctx *ctx;
|
struct vb2_v4l2_buffer *src_vbuf, *dst_vbuf;
|
|
ctx = v4l2_m2m_get_curr_priv(mdp->m2m_dev);
|
if (!ctx)
|
return;
|
|
src_vbuf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
|
dst_vbuf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
|
|
dst_vbuf->vb2_buf.timestamp = src_vbuf->vb2_buf.timestamp;
|
dst_vbuf->timecode = src_vbuf->timecode;
|
dst_vbuf->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
|
dst_vbuf->flags |= src_vbuf->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
|
|
v4l2_m2m_buf_done(src_vbuf, vb_state);
|
v4l2_m2m_buf_done(dst_vbuf, vb_state);
|
v4l2_m2m_job_finish(ctx->mdp_dev->m2m_dev, ctx->m2m_ctx);
|
}
|
|
static void mtk_mdp_m2m_worker(struct work_struct *work)
|
{
|
struct mtk_mdp_ctx *ctx =
|
container_of(work, struct mtk_mdp_ctx, work);
|
struct mtk_mdp_dev *mdp = ctx->mdp_dev;
|
enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
|
int ret;
|
|
if (mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_CTX_ERROR)) {
|
dev_err(&mdp->pdev->dev, "ctx is in error state");
|
goto worker_end;
|
}
|
|
mtk_mdp_m2m_get_bufs(ctx);
|
|
mtk_mdp_hw_set_input_addr(ctx, &ctx->s_frame.addr);
|
mtk_mdp_hw_set_output_addr(ctx, &ctx->d_frame.addr);
|
|
mtk_mdp_hw_set_in_size(ctx);
|
mtk_mdp_hw_set_in_image_format(ctx);
|
|
mtk_mdp_hw_set_out_size(ctx);
|
mtk_mdp_hw_set_out_image_format(ctx);
|
|
mtk_mdp_hw_set_rotation(ctx);
|
mtk_mdp_hw_set_global_alpha(ctx);
|
|
ret = mtk_mdp_vpu_process(&ctx->vpu);
|
if (ret) {
|
dev_err(&mdp->pdev->dev, "processing failed: %d", ret);
|
goto worker_end;
|
}
|
|
buf_state = VB2_BUF_STATE_DONE;
|
|
worker_end:
|
mtk_mdp_process_done(mdp, buf_state);
|
}
|
|
static void mtk_mdp_m2m_device_run(void *priv)
|
{
|
struct mtk_mdp_ctx *ctx = priv;
|
|
queue_work(ctx->mdp_dev->job_wq, &ctx->work);
|
}
|
|
static int mtk_mdp_m2m_queue_setup(struct vb2_queue *vq,
|
unsigned int *num_buffers, unsigned int *num_planes,
|
unsigned int sizes[], struct device *alloc_devs[])
|
{
|
struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vq);
|
struct mtk_mdp_frame *frame;
|
int i;
|
|
frame = mtk_mdp_ctx_get_frame(ctx, vq->type);
|
*num_planes = frame->fmt->num_planes;
|
for (i = 0; i < frame->fmt->num_planes; i++)
|
sizes[i] = frame->payload[i];
|
mtk_mdp_dbg(2, "[%d] type:%d, planes:%d, buffers:%d, size:%u,%u",
|
ctx->id, vq->type, *num_planes, *num_buffers,
|
sizes[0], sizes[1]);
|
return 0;
|
}
|
|
static int mtk_mdp_m2m_buf_prepare(struct vb2_buffer *vb)
|
{
|
struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
|
struct mtk_mdp_frame *frame;
|
int i;
|
|
frame = mtk_mdp_ctx_get_frame(ctx, vb->vb2_queue->type);
|
|
if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
|
for (i = 0; i < frame->fmt->num_planes; i++)
|
vb2_set_plane_payload(vb, i, frame->payload[i]);
|
}
|
|
return 0;
|
}
|
|
static void mtk_mdp_m2m_buf_queue(struct vb2_buffer *vb)
|
{
|
struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
|
|
v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
|
}
|
|
static const struct vb2_ops mtk_mdp_m2m_qops = {
|
.queue_setup = mtk_mdp_m2m_queue_setup,
|
.buf_prepare = mtk_mdp_m2m_buf_prepare,
|
.buf_queue = mtk_mdp_m2m_buf_queue,
|
.stop_streaming = mtk_mdp_m2m_stop_streaming,
|
.start_streaming = mtk_mdp_m2m_start_streaming,
|
.wait_prepare = vb2_ops_wait_prepare,
|
.wait_finish = vb2_ops_wait_finish,
|
};
|
|
static int mtk_mdp_m2m_querycap(struct file *file, void *fh,
|
struct v4l2_capability *cap)
|
{
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
struct mtk_mdp_dev *mdp = ctx->mdp_dev;
|
|
strscpy(cap->driver, MTK_MDP_MODULE_NAME, sizeof(cap->driver));
|
strscpy(cap->card, mdp->pdev->name, sizeof(cap->card));
|
strscpy(cap->bus_info, "platform:mt8173", sizeof(cap->bus_info));
|
|
return 0;
|
}
|
|
static int mtk_mdp_enum_fmt(struct v4l2_fmtdesc *f, u32 type)
|
{
|
const struct mtk_mdp_fmt *fmt;
|
|
fmt = mtk_mdp_find_fmt_by_index(f->index, type);
|
if (!fmt)
|
return -EINVAL;
|
|
f->pixelformat = fmt->pixelformat;
|
|
return 0;
|
}
|
|
static int mtk_mdp_m2m_enum_fmt_vid_cap(struct file *file, void *priv,
|
struct v4l2_fmtdesc *f)
|
{
|
return mtk_mdp_enum_fmt(f, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
|
}
|
|
static int mtk_mdp_m2m_enum_fmt_vid_out(struct file *file, void *priv,
|
struct v4l2_fmtdesc *f)
|
{
|
return mtk_mdp_enum_fmt(f, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
|
}
|
|
static int mtk_mdp_m2m_g_fmt_mplane(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
struct mtk_mdp_frame *frame;
|
struct v4l2_pix_format_mplane *pix_mp;
|
int i;
|
|
mtk_mdp_dbg(2, "[%d] type:%d", ctx->id, f->type);
|
|
frame = mtk_mdp_ctx_get_frame(ctx, f->type);
|
pix_mp = &f->fmt.pix_mp;
|
|
pix_mp->width = frame->width;
|
pix_mp->height = frame->height;
|
pix_mp->field = V4L2_FIELD_NONE;
|
pix_mp->pixelformat = frame->fmt->pixelformat;
|
pix_mp->num_planes = frame->fmt->num_planes;
|
pix_mp->colorspace = ctx->colorspace;
|
pix_mp->xfer_func = ctx->xfer_func;
|
pix_mp->ycbcr_enc = ctx->ycbcr_enc;
|
pix_mp->quantization = ctx->quant;
|
mtk_mdp_dbg(2, "[%d] wxh:%dx%d", ctx->id,
|
pix_mp->width, pix_mp->height);
|
|
for (i = 0; i < pix_mp->num_planes; ++i) {
|
pix_mp->plane_fmt[i].bytesperline = (frame->width *
|
frame->fmt->row_depth[i]) / 8;
|
pix_mp->plane_fmt[i].sizeimage = (frame->width *
|
frame->height * frame->fmt->depth[i]) / 8;
|
|
mtk_mdp_dbg(2, "[%d] p%d, bpl:%d, sizeimage:%d", ctx->id, i,
|
pix_mp->plane_fmt[i].bytesperline,
|
pix_mp->plane_fmt[i].sizeimage);
|
}
|
|
return 0;
|
}
|
|
static int mtk_mdp_m2m_try_fmt_mplane(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
|
if (!mtk_mdp_try_fmt_mplane(ctx, f))
|
return -EINVAL;
|
return 0;
|
}
|
|
static int mtk_mdp_m2m_s_fmt_mplane(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
struct vb2_queue *vq;
|
struct mtk_mdp_frame *frame;
|
struct v4l2_pix_format_mplane *pix_mp;
|
const struct mtk_mdp_fmt *fmt;
|
int i;
|
|
mtk_mdp_dbg(2, "[%d] type:%d", ctx->id, f->type);
|
|
frame = mtk_mdp_ctx_get_frame(ctx, f->type);
|
fmt = mtk_mdp_try_fmt_mplane(ctx, f);
|
if (!fmt) {
|
mtk_mdp_err("[%d] try_fmt failed, type:%d", ctx->id, f->type);
|
return -EINVAL;
|
}
|
frame->fmt = fmt;
|
|
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
|
if (vb2_is_streaming(vq)) {
|
dev_info(&ctx->mdp_dev->pdev->dev, "queue %d busy", f->type);
|
return -EBUSY;
|
}
|
|
pix_mp = &f->fmt.pix_mp;
|
for (i = 0; i < frame->fmt->num_planes; i++) {
|
frame->payload[i] = pix_mp->plane_fmt[i].sizeimage;
|
frame->pitch[i] = pix_mp->plane_fmt[i].bytesperline;
|
}
|
|
mtk_mdp_set_frame_size(frame, pix_mp->width, pix_mp->height);
|
if (V4L2_TYPE_IS_OUTPUT(f->type)) {
|
ctx->colorspace = pix_mp->colorspace;
|
ctx->xfer_func = pix_mp->xfer_func;
|
ctx->ycbcr_enc = pix_mp->ycbcr_enc;
|
ctx->quant = pix_mp->quantization;
|
}
|
|
mtk_mdp_dbg(2, "[%d] type:%d, frame:%dx%d", ctx->id, f->type,
|
frame->width, frame->height);
|
|
return 0;
|
}
|
|
static int mtk_mdp_m2m_reqbufs(struct file *file, void *fh,
|
struct v4l2_requestbuffers *reqbufs)
|
{
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
|
return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
|
}
|
|
static int mtk_mdp_m2m_streamon(struct file *file, void *fh,
|
enum v4l2_buf_type type)
|
{
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
int ret;
|
|
if (!mtk_mdp_ctx_state_is_set(ctx, MTK_MDP_VPU_INIT)) {
|
ret = mtk_mdp_vpu_init(&ctx->vpu);
|
if (ret < 0) {
|
dev_err(&ctx->mdp_dev->pdev->dev,
|
"vpu init failed %d\n",
|
ret);
|
return -EINVAL;
|
}
|
mtk_mdp_ctx_state_lock_set(ctx, MTK_MDP_VPU_INIT);
|
}
|
|
return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
|
}
|
|
static inline bool mtk_mdp_is_target_compose(u32 target)
|
{
|
if (target == V4L2_SEL_TGT_COMPOSE_DEFAULT
|
|| target == V4L2_SEL_TGT_COMPOSE_BOUNDS
|
|| target == V4L2_SEL_TGT_COMPOSE)
|
return true;
|
return false;
|
}
|
|
static inline bool mtk_mdp_is_target_crop(u32 target)
|
{
|
if (target == V4L2_SEL_TGT_CROP_DEFAULT
|
|| target == V4L2_SEL_TGT_CROP_BOUNDS
|
|| target == V4L2_SEL_TGT_CROP)
|
return true;
|
return false;
|
}
|
|
static int mtk_mdp_m2m_g_selection(struct file *file, void *fh,
|
struct v4l2_selection *s)
|
{
|
struct mtk_mdp_frame *frame;
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
bool valid = false;
|
|
if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
if (mtk_mdp_is_target_compose(s->target))
|
valid = true;
|
} else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
|
if (mtk_mdp_is_target_crop(s->target))
|
valid = true;
|
}
|
if (!valid) {
|
mtk_mdp_dbg(1, "[%d] invalid type:%d,%u", ctx->id, s->type,
|
s->target);
|
return -EINVAL;
|
}
|
|
frame = mtk_mdp_ctx_get_frame(ctx, s->type);
|
|
switch (s->target) {
|
case V4L2_SEL_TGT_COMPOSE_DEFAULT:
|
case V4L2_SEL_TGT_COMPOSE_BOUNDS:
|
case V4L2_SEL_TGT_CROP_BOUNDS:
|
case V4L2_SEL_TGT_CROP_DEFAULT:
|
s->r.left = 0;
|
s->r.top = 0;
|
s->r.width = frame->width;
|
s->r.height = frame->height;
|
return 0;
|
|
case V4L2_SEL_TGT_COMPOSE:
|
case V4L2_SEL_TGT_CROP:
|
s->r.left = frame->crop.left;
|
s->r.top = frame->crop.top;
|
s->r.width = frame->crop.width;
|
s->r.height = frame->crop.height;
|
return 0;
|
}
|
|
return -EINVAL;
|
}
|
|
static int mtk_mdp_check_scaler_ratio(struct mtk_mdp_variant *var, int src_w,
|
int src_h, int dst_w, int dst_h, int rot)
|
{
|
int tmp_w, tmp_h;
|
|
if (rot == 90 || rot == 270) {
|
tmp_w = dst_h;
|
tmp_h = dst_w;
|
} else {
|
tmp_w = dst_w;
|
tmp_h = dst_h;
|
}
|
|
if ((src_w / tmp_w) > var->h_scale_down_max ||
|
(src_h / tmp_h) > var->v_scale_down_max ||
|
(tmp_w / src_w) > var->h_scale_up_max ||
|
(tmp_h / src_h) > var->v_scale_up_max)
|
return -EINVAL;
|
|
return 0;
|
}
|
|
static int mtk_mdp_m2m_s_selection(struct file *file, void *fh,
|
struct v4l2_selection *s)
|
{
|
struct mtk_mdp_frame *frame;
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(fh);
|
struct v4l2_rect new_r;
|
struct mtk_mdp_variant *variant = ctx->mdp_dev->variant;
|
int ret;
|
bool valid = false;
|
|
if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
if (s->target == V4L2_SEL_TGT_COMPOSE)
|
valid = true;
|
} else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
|
if (s->target == V4L2_SEL_TGT_CROP)
|
valid = true;
|
}
|
if (!valid) {
|
mtk_mdp_dbg(1, "[%d] invalid type:%d,%u", ctx->id, s->type,
|
s->target);
|
return -EINVAL;
|
}
|
|
new_r = s->r;
|
ret = mtk_mdp_try_crop(ctx, s->type, &new_r);
|
if (ret)
|
return ret;
|
|
if (mtk_mdp_is_target_crop(s->target))
|
frame = &ctx->s_frame;
|
else
|
frame = &ctx->d_frame;
|
|
/* Check to see if scaling ratio is within supported range */
|
if (V4L2_TYPE_IS_OUTPUT(s->type))
|
ret = mtk_mdp_check_scaler_ratio(variant, new_r.width,
|
new_r.height, ctx->d_frame.crop.width,
|
ctx->d_frame.crop.height,
|
ctx->ctrls.rotate->val);
|
else
|
ret = mtk_mdp_check_scaler_ratio(variant,
|
ctx->s_frame.crop.width,
|
ctx->s_frame.crop.height, new_r.width,
|
new_r.height, ctx->ctrls.rotate->val);
|
|
if (ret) {
|
dev_info(&ctx->mdp_dev->pdev->dev,
|
"Out of scaler range");
|
return -EINVAL;
|
}
|
|
s->r = new_r;
|
frame->crop = new_r;
|
|
return 0;
|
}
|
|
static const struct v4l2_ioctl_ops mtk_mdp_m2m_ioctl_ops = {
|
.vidioc_querycap = mtk_mdp_m2m_querycap,
|
.vidioc_enum_fmt_vid_cap = mtk_mdp_m2m_enum_fmt_vid_cap,
|
.vidioc_enum_fmt_vid_out = mtk_mdp_m2m_enum_fmt_vid_out,
|
.vidioc_g_fmt_vid_cap_mplane = mtk_mdp_m2m_g_fmt_mplane,
|
.vidioc_g_fmt_vid_out_mplane = mtk_mdp_m2m_g_fmt_mplane,
|
.vidioc_try_fmt_vid_cap_mplane = mtk_mdp_m2m_try_fmt_mplane,
|
.vidioc_try_fmt_vid_out_mplane = mtk_mdp_m2m_try_fmt_mplane,
|
.vidioc_s_fmt_vid_cap_mplane = mtk_mdp_m2m_s_fmt_mplane,
|
.vidioc_s_fmt_vid_out_mplane = mtk_mdp_m2m_s_fmt_mplane,
|
.vidioc_reqbufs = mtk_mdp_m2m_reqbufs,
|
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
|
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
|
.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
|
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
|
.vidioc_streamon = mtk_mdp_m2m_streamon,
|
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
|
.vidioc_g_selection = mtk_mdp_m2m_g_selection,
|
.vidioc_s_selection = mtk_mdp_m2m_s_selection
|
};
|
|
static int mtk_mdp_m2m_queue_init(void *priv, struct vb2_queue *src_vq,
|
struct vb2_queue *dst_vq)
|
{
|
struct mtk_mdp_ctx *ctx = priv;
|
int ret;
|
|
memset(src_vq, 0, sizeof(*src_vq));
|
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
|
src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
|
src_vq->drv_priv = ctx;
|
src_vq->ops = &mtk_mdp_m2m_qops;
|
src_vq->mem_ops = &vb2_dma_contig_memops;
|
src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
|
src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
src_vq->dev = &ctx->mdp_dev->pdev->dev;
|
src_vq->lock = &ctx->mdp_dev->lock;
|
|
ret = vb2_queue_init(src_vq);
|
if (ret)
|
return ret;
|
|
memset(dst_vq, 0, sizeof(*dst_vq));
|
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
|
dst_vq->drv_priv = ctx;
|
dst_vq->ops = &mtk_mdp_m2m_qops;
|
dst_vq->mem_ops = &vb2_dma_contig_memops;
|
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
|
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
dst_vq->dev = &ctx->mdp_dev->pdev->dev;
|
dst_vq->lock = &ctx->mdp_dev->lock;
|
|
return vb2_queue_init(dst_vq);
|
}
|
|
static int mtk_mdp_s_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct mtk_mdp_ctx *ctx = ctrl_to_ctx(ctrl);
|
struct mtk_mdp_dev *mdp = ctx->mdp_dev;
|
struct mtk_mdp_variant *variant = mdp->variant;
|
int ret = 0;
|
|
if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE)
|
return 0;
|
|
switch (ctrl->id) {
|
case V4L2_CID_HFLIP:
|
ctx->hflip = ctrl->val;
|
break;
|
case V4L2_CID_VFLIP:
|
ctx->vflip = ctrl->val;
|
break;
|
case V4L2_CID_ROTATE:
|
ret = mtk_mdp_check_scaler_ratio(variant,
|
ctx->s_frame.crop.width,
|
ctx->s_frame.crop.height,
|
ctx->d_frame.crop.width,
|
ctx->d_frame.crop.height,
|
ctx->ctrls.rotate->val);
|
|
if (ret)
|
return -EINVAL;
|
|
ctx->rotation = ctrl->val;
|
break;
|
case V4L2_CID_ALPHA_COMPONENT:
|
ctx->d_frame.alpha = ctrl->val;
|
break;
|
}
|
|
return 0;
|
}
|
|
static const struct v4l2_ctrl_ops mtk_mdp_ctrl_ops = {
|
.s_ctrl = mtk_mdp_s_ctrl,
|
};
|
|
static int mtk_mdp_ctrls_create(struct mtk_mdp_ctx *ctx)
|
{
|
v4l2_ctrl_handler_init(&ctx->ctrl_handler, MTK_MDP_MAX_CTRL_NUM);
|
|
ctx->ctrls.rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler,
|
&mtk_mdp_ctrl_ops, V4L2_CID_ROTATE, 0, 270, 90, 0);
|
ctx->ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
|
&mtk_mdp_ctrl_ops,
|
V4L2_CID_HFLIP,
|
0, 1, 1, 0);
|
ctx->ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
|
&mtk_mdp_ctrl_ops,
|
V4L2_CID_VFLIP,
|
0, 1, 1, 0);
|
ctx->ctrls.global_alpha = v4l2_ctrl_new_std(&ctx->ctrl_handler,
|
&mtk_mdp_ctrl_ops,
|
V4L2_CID_ALPHA_COMPONENT,
|
0, 255, 1, 0);
|
ctx->ctrls_rdy = ctx->ctrl_handler.error == 0;
|
|
if (ctx->ctrl_handler.error) {
|
int err = ctx->ctrl_handler.error;
|
|
v4l2_ctrl_handler_free(&ctx->ctrl_handler);
|
dev_err(&ctx->mdp_dev->pdev->dev,
|
"Failed to create control handlers\n");
|
return err;
|
}
|
|
return 0;
|
}
|
|
static void mtk_mdp_set_default_params(struct mtk_mdp_ctx *ctx)
|
{
|
struct mtk_mdp_dev *mdp = ctx->mdp_dev;
|
struct mtk_mdp_frame *frame;
|
|
frame = mtk_mdp_ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
|
frame->fmt = mtk_mdp_find_fmt_by_index(0,
|
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
|
frame->width = mdp->variant->pix_min->org_w;
|
frame->height = mdp->variant->pix_min->org_h;
|
frame->payload[0] = frame->width * frame->height;
|
frame->payload[1] = frame->payload[0] / 2;
|
|
frame = mtk_mdp_ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
|
frame->fmt = mtk_mdp_find_fmt_by_index(0,
|
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
|
frame->width = mdp->variant->pix_min->target_rot_dis_w;
|
frame->height = mdp->variant->pix_min->target_rot_dis_h;
|
frame->payload[0] = frame->width * frame->height;
|
frame->payload[1] = frame->payload[0] / 2;
|
|
}
|
|
static int mtk_mdp_m2m_open(struct file *file)
|
{
|
struct mtk_mdp_dev *mdp = video_drvdata(file);
|
struct video_device *vfd = video_devdata(file);
|
struct mtk_mdp_ctx *ctx = NULL;
|
int ret;
|
struct v4l2_format default_format;
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
if (!ctx)
|
return -ENOMEM;
|
|
if (mutex_lock_interruptible(&mdp->lock)) {
|
ret = -ERESTARTSYS;
|
goto err_lock;
|
}
|
|
mutex_init(&ctx->slock);
|
ctx->id = mdp->id_counter++;
|
v4l2_fh_init(&ctx->fh, vfd);
|
file->private_data = &ctx->fh;
|
ret = mtk_mdp_ctrls_create(ctx);
|
if (ret)
|
goto error_ctrls;
|
|
/* Use separate control handler per file handle */
|
ctx->fh.ctrl_handler = &ctx->ctrl_handler;
|
v4l2_fh_add(&ctx->fh);
|
INIT_LIST_HEAD(&ctx->list);
|
|
ctx->mdp_dev = mdp;
|
mtk_mdp_set_default_params(ctx);
|
|
INIT_WORK(&ctx->work, mtk_mdp_m2m_worker);
|
ctx->m2m_ctx = v4l2_m2m_ctx_init(mdp->m2m_dev, ctx,
|
mtk_mdp_m2m_queue_init);
|
if (IS_ERR(ctx->m2m_ctx)) {
|
dev_err(&mdp->pdev->dev, "Failed to initialize m2m context");
|
ret = PTR_ERR(ctx->m2m_ctx);
|
goto error_m2m_ctx;
|
}
|
ctx->fh.m2m_ctx = ctx->m2m_ctx;
|
if (mdp->ctx_num++ == 0) {
|
ret = vpu_load_firmware(mdp->vpu_dev);
|
if (ret < 0) {
|
dev_err(&mdp->pdev->dev,
|
"vpu_load_firmware failed %d\n", ret);
|
goto err_load_vpu;
|
}
|
|
ret = mtk_mdp_vpu_register(mdp->pdev);
|
if (ret < 0) {
|
dev_err(&mdp->pdev->dev,
|
"mdp_vpu register failed %d\n", ret);
|
goto err_load_vpu;
|
}
|
}
|
|
list_add(&ctx->list, &mdp->ctx_list);
|
mutex_unlock(&mdp->lock);
|
|
/* Default format */
|
memset(&default_format, 0, sizeof(default_format));
|
default_format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
|
default_format.fmt.pix_mp.width = 32;
|
default_format.fmt.pix_mp.height = 32;
|
default_format.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_YUV420M;
|
mtk_mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format);
|
default_format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
mtk_mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format);
|
|
mtk_mdp_dbg(0, "%s [%d]", dev_name(&mdp->pdev->dev), ctx->id);
|
|
return 0;
|
|
err_load_vpu:
|
mdp->ctx_num--;
|
v4l2_m2m_ctx_release(ctx->m2m_ctx);
|
error_m2m_ctx:
|
v4l2_ctrl_handler_free(&ctx->ctrl_handler);
|
error_ctrls:
|
v4l2_fh_del(&ctx->fh);
|
v4l2_fh_exit(&ctx->fh);
|
mutex_unlock(&mdp->lock);
|
err_lock:
|
kfree(ctx);
|
|
return ret;
|
}
|
|
static int mtk_mdp_m2m_release(struct file *file)
|
{
|
struct mtk_mdp_ctx *ctx = fh_to_ctx(file->private_data);
|
struct mtk_mdp_dev *mdp = ctx->mdp_dev;
|
|
flush_workqueue(mdp->job_wq);
|
mutex_lock(&mdp->lock);
|
v4l2_m2m_ctx_release(ctx->m2m_ctx);
|
v4l2_ctrl_handler_free(&ctx->ctrl_handler);
|
v4l2_fh_del(&ctx->fh);
|
v4l2_fh_exit(&ctx->fh);
|
mtk_mdp_vpu_deinit(&ctx->vpu);
|
mdp->ctx_num--;
|
list_del_init(&ctx->list);
|
|
mtk_mdp_dbg(0, "%s [%d]", dev_name(&mdp->pdev->dev), ctx->id);
|
|
mutex_unlock(&mdp->lock);
|
kfree(ctx);
|
|
return 0;
|
}
|
|
static const struct v4l2_file_operations mtk_mdp_m2m_fops = {
|
.owner = THIS_MODULE,
|
.open = mtk_mdp_m2m_open,
|
.release = mtk_mdp_m2m_release,
|
.poll = v4l2_m2m_fop_poll,
|
.unlocked_ioctl = video_ioctl2,
|
.mmap = v4l2_m2m_fop_mmap,
|
};
|
|
static const struct v4l2_m2m_ops mtk_mdp_m2m_ops = {
|
.device_run = mtk_mdp_m2m_device_run,
|
};
|
|
int mtk_mdp_register_m2m_device(struct mtk_mdp_dev *mdp)
|
{
|
struct device *dev = &mdp->pdev->dev;
|
int ret;
|
|
mdp->variant = &mtk_mdp_default_variant;
|
mdp->vdev = video_device_alloc();
|
if (!mdp->vdev) {
|
dev_err(dev, "failed to allocate video device\n");
|
ret = -ENOMEM;
|
goto err_video_alloc;
|
}
|
mdp->vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
|
mdp->vdev->fops = &mtk_mdp_m2m_fops;
|
mdp->vdev->ioctl_ops = &mtk_mdp_m2m_ioctl_ops;
|
mdp->vdev->release = video_device_release;
|
mdp->vdev->lock = &mdp->lock;
|
mdp->vdev->vfl_dir = VFL_DIR_M2M;
|
mdp->vdev->v4l2_dev = &mdp->v4l2_dev;
|
snprintf(mdp->vdev->name, sizeof(mdp->vdev->name), "%s:m2m",
|
MTK_MDP_MODULE_NAME);
|
video_set_drvdata(mdp->vdev, mdp);
|
|
mdp->m2m_dev = v4l2_m2m_init(&mtk_mdp_m2m_ops);
|
if (IS_ERR(mdp->m2m_dev)) {
|
dev_err(dev, "failed to initialize v4l2-m2m device\n");
|
ret = PTR_ERR(mdp->m2m_dev);
|
goto err_m2m_init;
|
}
|
|
ret = video_register_device(mdp->vdev, VFL_TYPE_VIDEO, 2);
|
if (ret) {
|
dev_err(dev, "failed to register video device\n");
|
goto err_vdev_register;
|
}
|
|
v4l2_info(&mdp->v4l2_dev, "driver registered as /dev/video%d",
|
mdp->vdev->num);
|
return 0;
|
|
err_vdev_register:
|
v4l2_m2m_release(mdp->m2m_dev);
|
err_m2m_init:
|
video_device_release(mdp->vdev);
|
err_video_alloc:
|
|
return ret;
|
}
|
|
void mtk_mdp_unregister_m2m_device(struct mtk_mdp_dev *mdp)
|
{
|
video_unregister_device(mdp->vdev);
|
v4l2_m2m_release(mdp->m2m_dev);
|
}
|
