mirror of https://gitee.com/openkylin/linux.git
media: imx: add csc/scaler mem2mem device
Add a single imx-media mem2mem video device that uses the IPU IC PP (image converter post processing) task for scaling and colorspace conversion. On i.MX6Q/DL SoCs with two IPUs currently only the first IPU is used. The hardware only supports writing to destination buffers up to 1024x1024 pixels in a single pass, arbitrary sizes can be achieved by rendering multiple tiles per frame. [slongerbeam@gmail.com: use ipu_image_convert_adjust(), fix device_run() error handling, add missing media-device header, unregister and remove the mem2mem device in error paths in imx_media_probe_complete() and in imx_media_remove(), updated for sync subdev registration] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: correct two minor checkpatch issues] [hverkuil-cisco@xs4all.nl: sparse warning: make imx6_media_probe_complete static] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Philipp Zabel
Mauro Carvalho Chehab
parent
14d5511691
commit
a8ef0488cc
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@ -7,6 +7,7 @@ config VIDEO_IMX_MEDIA
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_FWNODE
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select V4L2_MEM2MEM_DEV
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help
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Say yes here to enable support for video4linux media controller
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driver for the i.MX5/6 SOC.
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@ -1,6 +1,7 @@
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# SPDX-License-Identifier: GPL-2.0
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imx6-media-objs := imx-media-dev.o imx-media-internal-sd.o \
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imx-ic-common.o imx-ic-prp.o imx-ic-prpencvf.o imx-media-vdic.o
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imx-ic-common.o imx-ic-prp.o imx-ic-prpencvf.o imx-media-vdic.o \
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imx-media-csc-scaler.o
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imx-media-common-objs := imx-media-capture.o imx-media-dev-common.o \
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imx-media-of.o imx-media-utils.o
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@ -0,0 +1,926 @@
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* i.MX IPUv3 IC PP mem2mem CSC/Scaler driver
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*
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* Copyright (C) 2011 Pengutronix, Sascha Hauer
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* Copyright (C) 2018 Pengutronix, Philipp Zabel
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/fs.h>
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#include <linux/version.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <video/imx-ipu-v3.h>
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#include <video/imx-ipu-image-convert.h>
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#include <media/media-device.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-event.h>
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#include <media/v4l2-mem2mem.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <media/videobuf2-dma-contig.h>
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#include "imx-media.h"
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#define fh_to_ctx(__fh) container_of(__fh, struct ipu_csc_scaler_ctx, fh)
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enum {
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V4L2_M2M_SRC = 0,
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V4L2_M2M_DST = 1,
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};
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struct ipu_csc_scaler_priv {
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struct imx_media_video_dev vdev;
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struct v4l2_m2m_dev *m2m_dev;
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struct device *dev;
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struct imx_media_dev *md;
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struct mutex mutex; /* mem2mem device mutex */
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};
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#define vdev_to_priv(v) container_of(v, struct ipu_csc_scaler_priv, vdev)
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/* Per-queue, driver-specific private data */
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struct ipu_csc_scaler_q_data {
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struct v4l2_pix_format cur_fmt;
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struct v4l2_rect rect;
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};
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struct ipu_csc_scaler_ctx {
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struct ipu_csc_scaler_priv *priv;
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struct v4l2_fh fh;
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struct ipu_csc_scaler_q_data q_data[2];
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struct ipu_image_convert_ctx *icc;
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struct v4l2_ctrl_handler ctrl_hdlr;
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int rotate;
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bool hflip;
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bool vflip;
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enum ipu_rotate_mode rot_mode;
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unsigned int sequence;
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};
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static struct ipu_csc_scaler_q_data *get_q_data(struct ipu_csc_scaler_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->q_data[V4L2_M2M_SRC];
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else
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return &ctx->q_data[V4L2_M2M_DST];
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}
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/*
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* mem2mem callbacks
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*/
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static void job_abort(void *_ctx)
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{
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struct ipu_csc_scaler_ctx *ctx = _ctx;
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if (ctx->icc)
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ipu_image_convert_abort(ctx->icc);
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}
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static void ipu_ic_pp_complete(struct ipu_image_convert_run *run, void *_ctx)
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{
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struct ipu_csc_scaler_ctx *ctx = _ctx;
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struct ipu_csc_scaler_priv *priv = ctx->priv;
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struct vb2_v4l2_buffer *src_buf, *dst_buf;
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src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
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dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
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v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
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src_buf->sequence = ctx->sequence++;
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dst_buf->sequence = src_buf->sequence;
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v4l2_m2m_buf_done(src_buf, run->status ? VB2_BUF_STATE_ERROR :
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VB2_BUF_STATE_DONE);
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v4l2_m2m_buf_done(dst_buf, run->status ? VB2_BUF_STATE_ERROR :
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VB2_BUF_STATE_DONE);
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v4l2_m2m_job_finish(priv->m2m_dev, ctx->fh.m2m_ctx);
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kfree(run);
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}
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static void device_run(void *_ctx)
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{
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struct ipu_csc_scaler_ctx *ctx = _ctx;
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struct ipu_csc_scaler_priv *priv = ctx->priv;
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struct vb2_v4l2_buffer *src_buf, *dst_buf;
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struct ipu_image_convert_run *run;
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int ret;
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src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
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dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
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run = kzalloc(sizeof(*run), GFP_KERNEL);
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if (!run)
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goto err;
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run->ctx = ctx->icc;
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run->in_phys = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
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run->out_phys = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
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ret = ipu_image_convert_queue(run);
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if (ret < 0) {
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v4l2_err(ctx->priv->vdev.vfd->v4l2_dev,
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"%s: failed to queue: %d\n", __func__, ret);
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goto err;
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}
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return;
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err:
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v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
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v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
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v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
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v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
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v4l2_m2m_job_finish(priv->m2m_dev, ctx->fh.m2m_ctx);
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}
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/*
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* Video ioctls
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*/
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static int ipu_csc_scaler_querycap(struct file *file, void *priv,
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struct v4l2_capability *cap)
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{
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strscpy(cap->driver, "imx-media-csc-scaler", sizeof(cap->driver));
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strscpy(cap->card, "imx-media-csc-scaler", sizeof(cap->card));
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strscpy(cap->bus_info, "platform:imx-media-csc-scaler",
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sizeof(cap->bus_info));
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return 0;
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}
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static int ipu_csc_scaler_enum_fmt(struct file *file, void *fh,
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struct v4l2_fmtdesc *f)
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{
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u32 fourcc;
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int ret;
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ret = imx_media_enum_format(&fourcc, f->index, CS_SEL_ANY);
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if (ret)
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return ret;
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f->pixelformat = fourcc;
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return 0;
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}
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static int ipu_csc_scaler_g_fmt(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
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struct ipu_csc_scaler_q_data *q_data;
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q_data = get_q_data(ctx, f->type);
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f->fmt.pix = q_data->cur_fmt;
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return 0;
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}
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static int ipu_csc_scaler_try_fmt(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
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struct ipu_csc_scaler_q_data *q_data = get_q_data(ctx, f->type);
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struct ipu_image test_in, test_out;
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enum v4l2_field field;
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field = f->fmt.pix.field;
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if (field == V4L2_FIELD_ANY)
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field = V4L2_FIELD_NONE;
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else if (field != V4L2_FIELD_NONE)
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return -EINVAL;
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if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
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struct ipu_csc_scaler_q_data *q_data_in =
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get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
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test_out.pix = f->fmt.pix;
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test_in.pix = q_data_in->cur_fmt;
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} else {
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struct ipu_csc_scaler_q_data *q_data_out =
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get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
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test_in.pix = f->fmt.pix;
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test_out.pix = q_data_out->cur_fmt;
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}
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ipu_image_convert_adjust(&test_in, &test_out, ctx->rot_mode);
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f->fmt.pix = (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
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test_out.pix : test_in.pix;
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if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
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f->fmt.pix.colorspace = q_data->cur_fmt.colorspace;
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f->fmt.pix.ycbcr_enc = q_data->cur_fmt.ycbcr_enc;
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f->fmt.pix.xfer_func = q_data->cur_fmt.xfer_func;
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f->fmt.pix.quantization = q_data->cur_fmt.quantization;
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} else if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT) {
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f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
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f->fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
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f->fmt.pix.xfer_func = V4L2_XFER_FUNC_DEFAULT;
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f->fmt.pix.quantization = V4L2_QUANTIZATION_DEFAULT;
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}
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return 0;
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}
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static int ipu_csc_scaler_s_fmt(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct ipu_csc_scaler_q_data *q_data;
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struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
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struct vb2_queue *vq;
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int ret;
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vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
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if (vb2_is_busy(vq)) {
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v4l2_err(ctx->priv->vdev.vfd->v4l2_dev, "%s: queue busy\n",
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__func__);
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return -EBUSY;
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}
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q_data = get_q_data(ctx, f->type);
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ret = ipu_csc_scaler_try_fmt(file, priv, f);
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if (ret < 0)
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return ret;
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q_data->cur_fmt.width = f->fmt.pix.width;
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q_data->cur_fmt.height = f->fmt.pix.height;
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q_data->cur_fmt.pixelformat = f->fmt.pix.pixelformat;
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q_data->cur_fmt.field = f->fmt.pix.field;
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q_data->cur_fmt.bytesperline = f->fmt.pix.bytesperline;
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q_data->cur_fmt.sizeimage = f->fmt.pix.sizeimage;
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/* Reset cropping/composing rectangle */
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q_data->rect.left = 0;
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q_data->rect.top = 0;
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q_data->rect.width = q_data->cur_fmt.width;
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q_data->rect.height = q_data->cur_fmt.height;
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if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
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/* Set colorimetry on the output queue */
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q_data->cur_fmt.colorspace = f->fmt.pix.colorspace;
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q_data->cur_fmt.ycbcr_enc = f->fmt.pix.ycbcr_enc;
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q_data->cur_fmt.xfer_func = f->fmt.pix.xfer_func;
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q_data->cur_fmt.quantization = f->fmt.pix.quantization;
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/* Propagate colorimetry to the capture queue */
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q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
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q_data->cur_fmt.colorspace = f->fmt.pix.colorspace;
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q_data->cur_fmt.ycbcr_enc = f->fmt.pix.ycbcr_enc;
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q_data->cur_fmt.xfer_func = f->fmt.pix.xfer_func;
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q_data->cur_fmt.quantization = f->fmt.pix.quantization;
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}
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/*
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* TODO: Setting colorimetry on the capture queue is currently not
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* supported by the V4L2 API
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*/
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return 0;
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}
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static int ipu_csc_scaler_g_selection(struct file *file, void *priv,
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struct v4l2_selection *s)
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{
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struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
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struct ipu_csc_scaler_q_data *q_data;
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switch (s->target) {
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case V4L2_SEL_TGT_CROP:
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case V4L2_SEL_TGT_CROP_DEFAULT:
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case V4L2_SEL_TGT_CROP_BOUNDS:
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if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
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return -EINVAL;
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q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
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break;
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case V4L2_SEL_TGT_COMPOSE:
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case V4L2_SEL_TGT_COMPOSE_DEFAULT:
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case V4L2_SEL_TGT_COMPOSE_BOUNDS:
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if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
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return -EINVAL;
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q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
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break;
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default:
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return -EINVAL;
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}
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if (s->target == V4L2_SEL_TGT_CROP ||
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s->target == V4L2_SEL_TGT_COMPOSE) {
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s->r = q_data->rect;
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} else {
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s->r.left = 0;
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s->r.top = 0;
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s->r.width = q_data->cur_fmt.width;
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s->r.height = q_data->cur_fmt.height;
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}
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return 0;
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}
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static int ipu_csc_scaler_s_selection(struct file *file, void *priv,
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struct v4l2_selection *s)
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{
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struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
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struct ipu_csc_scaler_q_data *q_data;
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switch (s->target) {
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case V4L2_SEL_TGT_CROP:
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if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
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return -EINVAL;
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break;
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case V4L2_SEL_TGT_COMPOSE:
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if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
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return -EINVAL;
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break;
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default:
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return -EINVAL;
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}
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if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
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s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
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return -EINVAL;
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q_data = get_q_data(ctx, s->type);
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/* The input's frame width to the IC must be a multiple of 8 pixels
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* When performing resizing the frame width must be multiple of burst
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* size - 8 or 16 pixels as defined by CB#_BURST_16 parameter.
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*/
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if (s->flags & V4L2_SEL_FLAG_GE)
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s->r.width = round_up(s->r.width, 8);
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if (s->flags & V4L2_SEL_FLAG_LE)
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s->r.width = round_down(s->r.width, 8);
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s->r.width = clamp_t(unsigned int, s->r.width, 8,
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round_down(q_data->cur_fmt.width, 8));
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s->r.height = clamp_t(unsigned int, s->r.height, 1,
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q_data->cur_fmt.height);
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s->r.left = clamp_t(unsigned int, s->r.left, 0,
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q_data->cur_fmt.width - s->r.width);
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s->r.top = clamp_t(unsigned int, s->r.top, 0,
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q_data->cur_fmt.height - s->r.height);
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/* V4L2_SEL_FLAG_KEEP_CONFIG is only valid for subdevices */
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q_data->rect = s->r;
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return 0;
|
||||
}
|
||||
|
||||
static const struct v4l2_ioctl_ops ipu_csc_scaler_ioctl_ops = {
|
||||
.vidioc_querycap = ipu_csc_scaler_querycap,
|
||||
|
||||
.vidioc_enum_fmt_vid_cap = ipu_csc_scaler_enum_fmt,
|
||||
.vidioc_g_fmt_vid_cap = ipu_csc_scaler_g_fmt,
|
||||
.vidioc_try_fmt_vid_cap = ipu_csc_scaler_try_fmt,
|
||||
.vidioc_s_fmt_vid_cap = ipu_csc_scaler_s_fmt,
|
||||
|
||||
.vidioc_enum_fmt_vid_out = ipu_csc_scaler_enum_fmt,
|
||||
.vidioc_g_fmt_vid_out = ipu_csc_scaler_g_fmt,
|
||||
.vidioc_try_fmt_vid_out = ipu_csc_scaler_try_fmt,
|
||||
.vidioc_s_fmt_vid_out = ipu_csc_scaler_s_fmt,
|
||||
|
||||
.vidioc_g_selection = ipu_csc_scaler_g_selection,
|
||||
.vidioc_s_selection = ipu_csc_scaler_s_selection,
|
||||
|
||||
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
|
||||
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
|
||||
|
||||
.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
|
||||
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
|
||||
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
|
||||
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
|
||||
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
|
||||
|
||||
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
|
||||
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
|
||||
|
||||
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
||||
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
||||
};
|
||||
|
||||
/*
|
||||
* Queue operations
|
||||
*/
|
||||
|
||||
static int ipu_csc_scaler_queue_setup(struct vb2_queue *vq,
|
||||
unsigned int *nbuffers,
|
||||
unsigned int *nplanes,
|
||||
unsigned int sizes[],
|
||||
struct device *alloc_devs[])
|
||||
{
|
||||
struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(vq);
|
||||
struct ipu_csc_scaler_q_data *q_data;
|
||||
unsigned int size, count = *nbuffers;
|
||||
|
||||
q_data = get_q_data(ctx, vq->type);
|
||||
|
||||
size = q_data->cur_fmt.sizeimage;
|
||||
|
||||
*nbuffers = count;
|
||||
|
||||
if (*nplanes)
|
||||
return sizes[0] < size ? -EINVAL : 0;
|
||||
|
||||
*nplanes = 1;
|
||||
sizes[0] = size;
|
||||
|
||||
dev_dbg(ctx->priv->dev, "get %d buffer(s) of size %d each.\n",
|
||||
count, size);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ipu_csc_scaler_buf_prepare(struct vb2_buffer *vb)
|
||||
{
|
||||
struct vb2_queue *vq = vb->vb2_queue;
|
||||
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
||||
struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(vq);
|
||||
struct ipu_csc_scaler_q_data *q_data;
|
||||
unsigned long size;
|
||||
|
||||
dev_dbg(ctx->priv->dev, "type: %d\n", vq->type);
|
||||
|
||||
if (V4L2_TYPE_IS_OUTPUT(vq->type)) {
|
||||
if (vbuf->field == V4L2_FIELD_ANY)
|
||||
vbuf->field = V4L2_FIELD_NONE;
|
||||
if (vbuf->field != V4L2_FIELD_NONE) {
|
||||
dev_dbg(ctx->priv->dev, "%s: field isn't supported\n",
|
||||
__func__);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
q_data = get_q_data(ctx, vq->type);
|
||||
size = q_data->cur_fmt.sizeimage;
|
||||
|
||||
if (vb2_plane_size(vb, 0) < size) {
|
||||
dev_dbg(ctx->priv->dev,
|
||||
"%s: data will not fit into plane (%lu < %lu)\n",
|
||||
__func__, vb2_plane_size(vb, 0), size);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
vb2_set_plane_payload(vb, 0, size);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ipu_csc_scaler_buf_queue(struct vb2_buffer *vb)
|
||||
{
|
||||
struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
|
||||
|
||||
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb));
|
||||
}
|
||||
|
||||
static void ipu_image_from_q_data(struct ipu_image *im,
|
||||
struct ipu_csc_scaler_q_data *q_data)
|
||||
{
|
||||
struct v4l2_pix_format *fmt = &q_data->cur_fmt;
|
||||
|
||||
im->pix = *fmt;
|
||||
if (fmt->ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT)
|
||||
im->pix.ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
|
||||
if (fmt->quantization == V4L2_QUANTIZATION_DEFAULT)
|
||||
im->pix.ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
|
||||
im->rect = q_data->rect;
|
||||
}
|
||||
|
||||
static int ipu_csc_scaler_start_streaming(struct vb2_queue *q,
|
||||
unsigned int count)
|
||||
{
|
||||
const enum ipu_ic_task ic_task = IC_TASK_POST_PROCESSOR;
|
||||
struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(q);
|
||||
struct ipu_csc_scaler_priv *priv = ctx->priv;
|
||||
struct ipu_soc *ipu = priv->md->ipu[0];
|
||||
struct ipu_csc_scaler_q_data *q_data;
|
||||
struct vb2_queue *other_q;
|
||||
struct ipu_image in, out;
|
||||
|
||||
other_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
|
||||
(q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
|
||||
V4L2_BUF_TYPE_VIDEO_OUTPUT :
|
||||
V4L2_BUF_TYPE_VIDEO_CAPTURE);
|
||||
if (!vb2_is_streaming(other_q))
|
||||
return 0;
|
||||
|
||||
if (ctx->icc) {
|
||||
v4l2_warn(ctx->priv->vdev.vfd->v4l2_dev, "removing old ICC\n");
|
||||
ipu_image_convert_unprepare(ctx->icc);
|
||||
}
|
||||
|
||||
q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
|
||||
ipu_image_from_q_data(&in, q_data);
|
||||
|
||||
q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
|
||||
ipu_image_from_q_data(&out, q_data);
|
||||
|
||||
ctx->icc = ipu_image_convert_prepare(ipu, ic_task, &in, &out,
|
||||
ctx->rot_mode,
|
||||
ipu_ic_pp_complete, ctx);
|
||||
if (IS_ERR(ctx->icc)) {
|
||||
struct vb2_v4l2_buffer *buf;
|
||||
int ret = PTR_ERR(ctx->icc);
|
||||
|
||||
ctx->icc = NULL;
|
||||
v4l2_err(ctx->priv->vdev.vfd->v4l2_dev, "%s: error %d\n",
|
||||
__func__, ret);
|
||||
while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
|
||||
v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
|
||||
while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
|
||||
v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ipu_csc_scaler_stop_streaming(struct vb2_queue *q)
|
||||
{
|
||||
struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(q);
|
||||
struct vb2_v4l2_buffer *buf;
|
||||
|
||||
if (ctx->icc) {
|
||||
ipu_image_convert_unprepare(ctx->icc);
|
||||
ctx->icc = NULL;
|
||||
}
|
||||
|
||||
ctx->sequence = 0;
|
||||
|
||||
if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
|
||||
while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
|
||||
v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
|
||||
} else {
|
||||
while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
|
||||
v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
|
||||
}
|
||||
}
|
||||
|
||||
static const struct vb2_ops ipu_csc_scaler_qops = {
|
||||
.queue_setup = ipu_csc_scaler_queue_setup,
|
||||
.buf_prepare = ipu_csc_scaler_buf_prepare,
|
||||
.buf_queue = ipu_csc_scaler_buf_queue,
|
||||
.wait_prepare = vb2_ops_wait_prepare,
|
||||
.wait_finish = vb2_ops_wait_finish,
|
||||
.start_streaming = ipu_csc_scaler_start_streaming,
|
||||
.stop_streaming = ipu_csc_scaler_stop_streaming,
|
||||
};
|
||||
|
||||
static int ipu_csc_scaler_queue_init(void *priv, struct vb2_queue *src_vq,
|
||||
struct vb2_queue *dst_vq)
|
||||
{
|
||||
struct ipu_csc_scaler_ctx *ctx = priv;
|
||||
int ret;
|
||||
|
||||
memset(src_vq, 0, sizeof(*src_vq));
|
||||
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
||||
src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
|
||||
src_vq->drv_priv = ctx;
|
||||
src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
|
||||
src_vq->ops = &ipu_csc_scaler_qops;
|
||||
src_vq->mem_ops = &vb2_dma_contig_memops;
|
||||
src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
||||
src_vq->lock = &ctx->priv->mutex;
|
||||
src_vq->dev = ctx->priv->dev;
|
||||
|
||||
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;
|
||||
dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
|
||||
dst_vq->drv_priv = ctx;
|
||||
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
|
||||
dst_vq->ops = &ipu_csc_scaler_qops;
|
||||
dst_vq->mem_ops = &vb2_dma_contig_memops;
|
||||
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
||||
dst_vq->lock = &ctx->priv->mutex;
|
||||
dst_vq->dev = ctx->priv->dev;
|
||||
|
||||
return vb2_queue_init(dst_vq);
|
||||
}
|
||||
|
||||
static int ipu_csc_scaler_s_ctrl(struct v4l2_ctrl *ctrl)
|
||||
{
|
||||
struct ipu_csc_scaler_ctx *ctx = container_of(ctrl->handler,
|
||||
struct ipu_csc_scaler_ctx,
|
||||
ctrl_hdlr);
|
||||
enum ipu_rotate_mode rot_mode;
|
||||
int rotate;
|
||||
bool hflip, vflip;
|
||||
int ret = 0;
|
||||
|
||||
rotate = ctx->rotate;
|
||||
hflip = ctx->hflip;
|
||||
vflip = ctx->vflip;
|
||||
|
||||
switch (ctrl->id) {
|
||||
case V4L2_CID_HFLIP:
|
||||
hflip = ctrl->val;
|
||||
break;
|
||||
case V4L2_CID_VFLIP:
|
||||
vflip = ctrl->val;
|
||||
break;
|
||||
case V4L2_CID_ROTATE:
|
||||
rotate = ctrl->val;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
ret = ipu_degrees_to_rot_mode(&rot_mode, rotate, hflip, vflip);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (rot_mode != ctx->rot_mode) {
|
||||
struct v4l2_pix_format *in_fmt, *out_fmt;
|
||||
struct ipu_image test_in, test_out;
|
||||
|
||||
in_fmt = &ctx->q_data[V4L2_M2M_SRC].cur_fmt;
|
||||
out_fmt = &ctx->q_data[V4L2_M2M_DST].cur_fmt;
|
||||
|
||||
test_in.pix = *in_fmt;
|
||||
test_out.pix = *out_fmt;
|
||||
|
||||
if (ipu_rot_mode_is_irt(rot_mode) !=
|
||||
ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
||||
/* Switch width & height to keep aspect ratio intact */
|
||||
test_out.pix.width = out_fmt->height;
|
||||
test_out.pix.height = out_fmt->width;
|
||||
}
|
||||
|
||||
ipu_image_convert_adjust(&test_in, &test_out, ctx->rot_mode);
|
||||
|
||||
/* Check if output format needs to be changed */
|
||||
if (test_in.pix.width != in_fmt->width ||
|
||||
test_in.pix.height != in_fmt->height ||
|
||||
test_in.pix.bytesperline != in_fmt->bytesperline ||
|
||||
test_in.pix.sizeimage != in_fmt->sizeimage) {
|
||||
struct vb2_queue *out_q;
|
||||
|
||||
out_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
|
||||
V4L2_BUF_TYPE_VIDEO_OUTPUT);
|
||||
if (vb2_is_busy(out_q))
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
/* Check if capture format needs to be changed */
|
||||
if (test_out.pix.width != out_fmt->width ||
|
||||
test_out.pix.height != out_fmt->height ||
|
||||
test_out.pix.bytesperline != out_fmt->bytesperline ||
|
||||
test_out.pix.sizeimage != out_fmt->sizeimage) {
|
||||
struct vb2_queue *cap_q;
|
||||
|
||||
cap_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
|
||||
V4L2_BUF_TYPE_VIDEO_CAPTURE);
|
||||
if (vb2_is_busy(cap_q))
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
*in_fmt = test_in.pix;
|
||||
*out_fmt = test_out.pix;
|
||||
|
||||
ctx->rot_mode = rot_mode;
|
||||
ctx->rotate = rotate;
|
||||
ctx->hflip = hflip;
|
||||
ctx->vflip = vflip;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct v4l2_ctrl_ops ipu_csc_scaler_ctrl_ops = {
|
||||
.s_ctrl = ipu_csc_scaler_s_ctrl,
|
||||
};
|
||||
|
||||
static int ipu_csc_scaler_init_controls(struct ipu_csc_scaler_ctx *ctx)
|
||||
{
|
||||
struct v4l2_ctrl_handler *hdlr = &ctx->ctrl_hdlr;
|
||||
|
||||
v4l2_ctrl_handler_init(hdlr, 3);
|
||||
|
||||
v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_HFLIP,
|
||||
0, 1, 1, 0);
|
||||
v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_VFLIP,
|
||||
0, 1, 1, 0);
|
||||
v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_ROTATE,
|
||||
0, 270, 90, 0);
|
||||
|
||||
if (hdlr->error) {
|
||||
v4l2_ctrl_handler_free(hdlr);
|
||||
return hdlr->error;
|
||||
}
|
||||
|
||||
v4l2_ctrl_handler_setup(hdlr);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define DEFAULT_WIDTH 720
|
||||
#define DEFAULT_HEIGHT 576
|
||||
static const struct ipu_csc_scaler_q_data ipu_csc_scaler_q_data_default = {
|
||||
.cur_fmt = {
|
||||
.width = DEFAULT_WIDTH,
|
||||
.height = DEFAULT_HEIGHT,
|
||||
.pixelformat = V4L2_PIX_FMT_YUV420,
|
||||
.field = V4L2_FIELD_NONE,
|
||||
.bytesperline = DEFAULT_WIDTH,
|
||||
.sizeimage = DEFAULT_WIDTH * DEFAULT_HEIGHT * 3 / 2,
|
||||
.colorspace = V4L2_COLORSPACE_SRGB,
|
||||
},
|
||||
.rect = {
|
||||
.width = DEFAULT_WIDTH,
|
||||
.height = DEFAULT_HEIGHT,
|
||||
},
|
||||
};
|
||||
|
||||
/*
|
||||
* File operations
|
||||
*/
|
||||
static int ipu_csc_scaler_open(struct file *file)
|
||||
{
|
||||
struct ipu_csc_scaler_priv *priv = video_drvdata(file);
|
||||
struct ipu_csc_scaler_ctx *ctx = NULL;
|
||||
int ret;
|
||||
|
||||
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
||||
if (!ctx)
|
||||
return -ENOMEM;
|
||||
|
||||
ctx->rot_mode = IPU_ROTATE_NONE;
|
||||
|
||||
v4l2_fh_init(&ctx->fh, video_devdata(file));
|
||||
file->private_data = &ctx->fh;
|
||||
v4l2_fh_add(&ctx->fh);
|
||||
ctx->priv = priv;
|
||||
|
||||
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(priv->m2m_dev, ctx,
|
||||
&ipu_csc_scaler_queue_init);
|
||||
if (IS_ERR(ctx->fh.m2m_ctx)) {
|
||||
ret = PTR_ERR(ctx->fh.m2m_ctx);
|
||||
goto err_ctx;
|
||||
}
|
||||
|
||||
ret = ipu_csc_scaler_init_controls(ctx);
|
||||
if (ret)
|
||||
goto err_ctrls;
|
||||
|
||||
ctx->fh.ctrl_handler = &ctx->ctrl_hdlr;
|
||||
|
||||
ctx->q_data[V4L2_M2M_SRC] = ipu_csc_scaler_q_data_default;
|
||||
ctx->q_data[V4L2_M2M_DST] = ipu_csc_scaler_q_data_default;
|
||||
|
||||
dev_dbg(priv->dev, "Created instance %p, m2m_ctx: %p\n", ctx,
|
||||
ctx->fh.m2m_ctx);
|
||||
|
||||
return 0;
|
||||
|
||||
err_ctrls:
|
||||
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
|
||||
err_ctx:
|
||||
v4l2_fh_del(&ctx->fh);
|
||||
v4l2_fh_exit(&ctx->fh);
|
||||
kfree(ctx);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ipu_csc_scaler_release(struct file *file)
|
||||
{
|
||||
struct ipu_csc_scaler_priv *priv = video_drvdata(file);
|
||||
struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(file->private_data);
|
||||
|
||||
dev_dbg(priv->dev, "Releasing instance %p\n", ctx);
|
||||
|
||||
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
|
||||
v4l2_fh_del(&ctx->fh);
|
||||
v4l2_fh_exit(&ctx->fh);
|
||||
kfree(ctx);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct v4l2_file_operations ipu_csc_scaler_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = ipu_csc_scaler_open,
|
||||
.release = ipu_csc_scaler_release,
|
||||
.poll = v4l2_m2m_fop_poll,
|
||||
.unlocked_ioctl = video_ioctl2,
|
||||
.mmap = v4l2_m2m_fop_mmap,
|
||||
};
|
||||
|
||||
static struct v4l2_m2m_ops m2m_ops = {
|
||||
.device_run = device_run,
|
||||
.job_abort = job_abort,
|
||||
};
|
||||
|
||||
static void ipu_csc_scaler_video_device_release(struct video_device *vdev)
|
||||
{
|
||||
struct ipu_csc_scaler_priv *priv = video_get_drvdata(vdev);
|
||||
|
||||
v4l2_m2m_release(priv->m2m_dev);
|
||||
video_device_release(vdev);
|
||||
kfree(priv);
|
||||
}
|
||||
|
||||
static const struct video_device ipu_csc_scaler_videodev_template = {
|
||||
.name = "ipu_ic_pp csc/scaler",
|
||||
.fops = &ipu_csc_scaler_fops,
|
||||
.ioctl_ops = &ipu_csc_scaler_ioctl_ops,
|
||||
.minor = -1,
|
||||
.release = ipu_csc_scaler_video_device_release,
|
||||
.vfl_dir = VFL_DIR_M2M,
|
||||
.device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
|
||||
};
|
||||
|
||||
int imx_media_csc_scaler_device_register(struct imx_media_video_dev *vdev)
|
||||
{
|
||||
struct ipu_csc_scaler_priv *priv = vdev_to_priv(vdev);
|
||||
struct video_device *vfd = vdev->vfd;
|
||||
int ret;
|
||||
|
||||
vfd->v4l2_dev = &priv->md->v4l2_dev;
|
||||
|
||||
ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
|
||||
if (ret) {
|
||||
v4l2_err(vfd->v4l2_dev, "Failed to register video device\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
v4l2_info(vfd->v4l2_dev, "Registered %s as /dev/%s\n", vfd->name,
|
||||
video_device_node_name(vfd));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void imx_media_csc_scaler_device_unregister(struct imx_media_video_dev *vdev)
|
||||
{
|
||||
struct ipu_csc_scaler_priv *priv = vdev_to_priv(vdev);
|
||||
struct video_device *vfd = priv->vdev.vfd;
|
||||
|
||||
mutex_lock(&priv->mutex);
|
||||
|
||||
video_unregister_device(vfd);
|
||||
|
||||
mutex_unlock(&priv->mutex);
|
||||
}
|
||||
|
||||
struct imx_media_video_dev *
|
||||
imx_media_csc_scaler_device_init(struct imx_media_dev *md)
|
||||
{
|
||||
struct ipu_csc_scaler_priv *priv;
|
||||
struct video_device *vfd;
|
||||
int ret;
|
||||
|
||||
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
priv->md = md;
|
||||
priv->dev = md->md.dev;
|
||||
|
||||
mutex_init(&priv->mutex);
|
||||
|
||||
vfd = video_device_alloc();
|
||||
if (!vfd) {
|
||||
ret = -ENOMEM;
|
||||
goto err_vfd;
|
||||
}
|
||||
|
||||
*vfd = ipu_csc_scaler_videodev_template;
|
||||
vfd->lock = &priv->mutex;
|
||||
priv->vdev.vfd = vfd;
|
||||
|
||||
INIT_LIST_HEAD(&priv->vdev.list);
|
||||
|
||||
video_set_drvdata(vfd, priv);
|
||||
|
||||
priv->m2m_dev = v4l2_m2m_init(&m2m_ops);
|
||||
if (IS_ERR(priv->m2m_dev)) {
|
||||
ret = PTR_ERR(priv->m2m_dev);
|
||||
v4l2_err(&md->v4l2_dev, "Failed to init mem2mem device: %d\n",
|
||||
ret);
|
||||
goto err_m2m;
|
||||
}
|
||||
|
||||
return &priv->vdev;
|
||||
|
||||
err_m2m:
|
||||
video_set_drvdata(vfd, NULL);
|
||||
err_vfd:
|
||||
kfree(priv);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
MODULE_DESCRIPTION("i.MX IPUv3 mem2mem scaler/CSC driver");
|
||||
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
@ -37,10 +37,35 @@ static int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* async subdev complete notifier */
|
||||
static int imx6_media_probe_complete(struct v4l2_async_notifier *notifier)
|
||||
{
|
||||
struct imx_media_dev *imxmd = notifier2dev(notifier);
|
||||
int ret;
|
||||
|
||||
/* call the imx5/6/7 common probe completion handler */
|
||||
ret = imx_media_probe_complete(notifier);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
mutex_lock(&imxmd->mutex);
|
||||
|
||||
imxmd->m2m_vdev = imx_media_csc_scaler_device_init(imxmd);
|
||||
if (IS_ERR(imxmd->m2m_vdev)) {
|
||||
ret = PTR_ERR(imxmd->m2m_vdev);
|
||||
goto unlock;
|
||||
}
|
||||
|
||||
ret = imx_media_csc_scaler_device_register(imxmd->m2m_vdev);
|
||||
unlock:
|
||||
mutex_unlock(&imxmd->mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* async subdev complete notifier */
|
||||
static const struct v4l2_async_notifier_operations imx_media_notifier_ops = {
|
||||
.bound = imx_media_subdev_bound,
|
||||
.complete = imx_media_probe_complete,
|
||||
.complete = imx6_media_probe_complete,
|
||||
};
|
||||
|
||||
static int imx_media_probe(struct platform_device *pdev)
|
||||
|
|
@ -85,6 +110,7 @@ static int imx_media_remove(struct platform_device *pdev)
|
|||
v4l2_async_notifier_unregister(&imxmd->notifier);
|
||||
imx_media_unregister_ipu_internal_subdevs(imxmd);
|
||||
v4l2_async_notifier_cleanup(&imxmd->notifier);
|
||||
imx_media_csc_scaler_device_unregister(imxmd->m2m_vdev);
|
||||
media_device_unregister(&imxmd->md);
|
||||
v4l2_device_unregister(&imxmd->v4l2_dev);
|
||||
media_device_cleanup(&imxmd->md);
|
||||
|
|
|
|||
|
|
@ -210,6 +210,10 @@ int imx_media_register_ipu_internal_subdevs(struct imx_media_dev *imxmd,
|
|||
|
||||
mutex_lock(&imxmd->mutex);
|
||||
|
||||
/* record this IPU */
|
||||
if (!imxmd->ipu[ipu_id])
|
||||
imxmd->ipu[ipu_id] = ipu;
|
||||
|
||||
/* register the synchronous subdevs */
|
||||
for (i = 0; i < NUM_IPU_SUBDEVS; i++) {
|
||||
intsd = &int_subdev[i];
|
||||
|
|
|
|||
|
|
@ -136,9 +136,15 @@ struct imx_media_dev {
|
|||
/* master video device list */
|
||||
struct list_head vdev_list;
|
||||
|
||||
/* IPUs this media driver control, valid after subdevs bound */
|
||||
struct ipu_soc *ipu[2];
|
||||
|
||||
/* for async subdev registration */
|
||||
struct v4l2_async_notifier notifier;
|
||||
|
||||
/* IC scaler/CSC mem2mem video device */
|
||||
struct imx_media_video_dev *m2m_vdev;
|
||||
|
||||
/* the IPU internal subdev's registered synchronously */
|
||||
struct v4l2_subdev *sync_sd[2][NUM_IPU_SUBDEVS];
|
||||
};
|
||||
|
|
@ -269,6 +275,12 @@ struct imx_media_buffer *
|
|||
imx_media_capture_device_next_buf(struct imx_media_video_dev *vdev);
|
||||
void imx_media_capture_device_error(struct imx_media_video_dev *vdev);
|
||||
|
||||
/* imx-media-csc-scaler.c */
|
||||
struct imx_media_video_dev *
|
||||
imx_media_csc_scaler_device_init(struct imx_media_dev *dev);
|
||||
int imx_media_csc_scaler_device_register(struct imx_media_video_dev *vdev);
|
||||
void imx_media_csc_scaler_device_unregister(struct imx_media_video_dev *vdev);
|
||||
|
||||
/* subdev group ids */
|
||||
#define IMX_MEDIA_GRP_ID_CSI2 BIT(8)
|
||||
#define IMX_MEDIA_GRP_ID_CSI BIT(9)
|
||||
|
|
|
|||
Loading…
Reference in New Issue