media: staging/imx: Re-organize modules
Re-organize modules, and which objects are linked into those modules, so that: - imx6-media (renamed from imx-media) is the media driver module for imx5/6 only, and has no symbol exports. - imx6-media-csi (renamed from imx-media-csi) is the subdev driver module for imx5/6 CSI. It is now linked direcly with imx-media-fim, since only the imx5/6 CSI makes use of the frame interval monitor. - imx-media-common now only contains common code between imx5/6 and imx7 media drivers. It contains imx-media-utils, imx-media-of, imx-media-dev-common, and imx-media-capture. In order to acheive that, some functions common to imx5/6 and imx7 have been moved out of imx-media-dev.c and into imx-media-dev-common.c. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
parent
523759c7bf
commit
6b8952db06
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@ -1,14 +1,16 @@
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# SPDX-License-Identifier: GPL-2.0
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# SPDX-License-Identifier: GPL-2.0
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imx-media-objs := imx-media-dev.o imx-media-internal-sd.o imx-media-of.o \
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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-objs += imx-media-dev-common.o
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imx-media-common-objs := imx-media-utils.o imx-media-fim.o
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obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media.o
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imx-media-common-objs := imx-media-capture.o imx-media-dev-common.o \
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imx-media-of.o imx-media-utils.o
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imx6-media-csi-objs := imx-media-csi.o imx-media-fim.o
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obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx6-media.o
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obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media-common.o
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obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media-common.o
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obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media-capture.o
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obj-$(CONFIG_VIDEO_IMX_CSI) += imx-media-csi.o
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obj-$(CONFIG_VIDEO_IMX_CSI) += imx6-media-csi.o
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obj-$(CONFIG_VIDEO_IMX_CSI) += imx6-mipi-csi2.o
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obj-$(CONFIG_VIDEO_IMX_CSI) += imx6-mipi-csi2.o
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obj-$(CONFIG_VIDEO_IMX7_CSI) += imx7-media-csi.o
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obj-$(CONFIG_VIDEO_IMX7_CSI) += imx7-media-csi.o
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@ -8,9 +8,342 @@
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#include <linux/of_graph.h>
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#include <linux/of_graph.h>
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#include <linux/of_platform.h>
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#include <linux/of_platform.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-ioctl.h>
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#include <media/v4l2-mc.h>
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#include "imx-media.h"
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#include "imx-media.h"
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static const struct v4l2_async_notifier_operations imx_media_subdev_ops = {
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static inline struct imx_media_dev *notifier2dev(struct v4l2_async_notifier *n)
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{
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return container_of(n, struct imx_media_dev, notifier);
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}
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/* async subdev bound notifier */
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static int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
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struct v4l2_subdev *sd,
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struct v4l2_async_subdev *asd)
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{
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v4l2_info(sd->v4l2_dev, "subdev %s bound\n", sd->name);
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return 0;
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}
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/*
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* Create the media links for all subdevs that registered.
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* Called after all async subdevs have bound.
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*/
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static int imx_media_create_links(struct v4l2_async_notifier *notifier)
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{
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struct imx_media_dev *imxmd = notifier2dev(notifier);
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struct v4l2_subdev *sd;
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list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) {
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switch (sd->grp_id) {
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case IMX_MEDIA_GRP_ID_IPU_VDIC:
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case IMX_MEDIA_GRP_ID_IPU_IC_PRP:
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case IMX_MEDIA_GRP_ID_IPU_IC_PRPENC:
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case IMX_MEDIA_GRP_ID_IPU_IC_PRPVF:
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/*
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* links have already been created for the
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* sync-registered subdevs.
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*/
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break;
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case IMX_MEDIA_GRP_ID_IPU_CSI0:
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case IMX_MEDIA_GRP_ID_IPU_CSI1:
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case IMX_MEDIA_GRP_ID_CSI:
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imx_media_create_csi_of_links(imxmd, sd);
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break;
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default:
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/*
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* if this subdev has fwnode links, create media
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* links for them.
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*/
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imx_media_create_of_links(imxmd, sd);
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break;
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}
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}
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return 0;
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}
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/*
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* adds given video device to given imx-media source pad vdev list.
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* Continues upstream from the pad entity's sink pads.
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*/
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static int imx_media_add_vdev_to_pad(struct imx_media_dev *imxmd,
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struct imx_media_video_dev *vdev,
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struct media_pad *srcpad)
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{
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struct media_entity *entity = srcpad->entity;
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struct imx_media_pad_vdev *pad_vdev;
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struct list_head *pad_vdev_list;
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struct media_link *link;
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struct v4l2_subdev *sd;
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int i, ret;
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/* skip this entity if not a v4l2_subdev */
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if (!is_media_entity_v4l2_subdev(entity))
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return 0;
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sd = media_entity_to_v4l2_subdev(entity);
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pad_vdev_list = to_pad_vdev_list(sd, srcpad->index);
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if (!pad_vdev_list) {
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v4l2_warn(&imxmd->v4l2_dev, "%s:%u has no vdev list!\n",
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entity->name, srcpad->index);
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/*
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* shouldn't happen, but no reason to fail driver load,
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* just skip this entity.
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*/
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return 0;
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}
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/* just return if we've been here before */
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list_for_each_entry(pad_vdev, pad_vdev_list, list) {
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if (pad_vdev->vdev == vdev)
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return 0;
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}
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dev_dbg(imxmd->md.dev, "adding %s to pad %s:%u\n",
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vdev->vfd->entity.name, entity->name, srcpad->index);
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pad_vdev = devm_kzalloc(imxmd->md.dev, sizeof(*pad_vdev), GFP_KERNEL);
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if (!pad_vdev)
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return -ENOMEM;
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/* attach this vdev to this pad */
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pad_vdev->vdev = vdev;
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list_add_tail(&pad_vdev->list, pad_vdev_list);
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/* move upstream from this entity's sink pads */
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for (i = 0; i < entity->num_pads; i++) {
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struct media_pad *pad = &entity->pads[i];
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if (!(pad->flags & MEDIA_PAD_FL_SINK))
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continue;
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list_for_each_entry(link, &entity->links, list) {
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if (link->sink != pad)
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continue;
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ret = imx_media_add_vdev_to_pad(imxmd, vdev,
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link->source);
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if (ret)
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return ret;
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}
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}
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return 0;
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}
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/*
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* For every subdevice, allocate an array of list_head's, one list_head
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* for each pad, to hold the list of video devices reachable from that
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* pad.
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*/
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static int imx_media_alloc_pad_vdev_lists(struct imx_media_dev *imxmd)
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{
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struct list_head *vdev_lists;
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struct media_entity *entity;
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struct v4l2_subdev *sd;
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int i;
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list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) {
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entity = &sd->entity;
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vdev_lists = devm_kcalloc(imxmd->md.dev,
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entity->num_pads, sizeof(*vdev_lists),
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GFP_KERNEL);
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if (!vdev_lists)
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return -ENOMEM;
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/* attach to the subdev's host private pointer */
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sd->host_priv = vdev_lists;
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for (i = 0; i < entity->num_pads; i++)
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INIT_LIST_HEAD(to_pad_vdev_list(sd, i));
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}
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return 0;
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}
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/* form the vdev lists in all imx-media source pads */
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static int imx_media_create_pad_vdev_lists(struct imx_media_dev *imxmd)
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{
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struct imx_media_video_dev *vdev;
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struct media_link *link;
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int ret;
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ret = imx_media_alloc_pad_vdev_lists(imxmd);
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if (ret)
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return ret;
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list_for_each_entry(vdev, &imxmd->vdev_list, list) {
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link = list_first_entry(&vdev->vfd->entity.links,
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struct media_link, list);
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ret = imx_media_add_vdev_to_pad(imxmd, vdev, link->source);
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if (ret)
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return ret;
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}
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return 0;
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}
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/* async subdev complete notifier */
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int imx_media_probe_complete(struct v4l2_async_notifier *notifier)
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{
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struct imx_media_dev *imxmd = notifier2dev(notifier);
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int ret;
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mutex_lock(&imxmd->mutex);
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ret = imx_media_create_links(notifier);
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if (ret)
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goto unlock;
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ret = imx_media_create_pad_vdev_lists(imxmd);
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if (ret)
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goto unlock;
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ret = v4l2_device_register_subdev_nodes(&imxmd->v4l2_dev);
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unlock:
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mutex_unlock(&imxmd->mutex);
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if (ret)
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return ret;
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return media_device_register(&imxmd->md);
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}
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EXPORT_SYMBOL_GPL(imx_media_probe_complete);
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/*
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* adds controls to a video device from an entity subdevice.
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* Continues upstream from the entity's sink pads.
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*/
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static int imx_media_inherit_controls(struct imx_media_dev *imxmd,
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struct video_device *vfd,
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struct media_entity *entity)
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{
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int i, ret = 0;
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if (is_media_entity_v4l2_subdev(entity)) {
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struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
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dev_dbg(imxmd->md.dev,
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"adding controls to %s from %s\n",
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vfd->entity.name, sd->entity.name);
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ret = v4l2_ctrl_add_handler(vfd->ctrl_handler,
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sd->ctrl_handler,
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NULL, true);
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if (ret)
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return ret;
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}
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/* move upstream */
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for (i = 0; i < entity->num_pads; i++) {
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struct media_pad *pad, *spad = &entity->pads[i];
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if (!(spad->flags & MEDIA_PAD_FL_SINK))
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continue;
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pad = media_entity_remote_pad(spad);
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if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
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continue;
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ret = imx_media_inherit_controls(imxmd, vfd, pad->entity);
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if (ret)
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break;
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}
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return ret;
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}
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static int imx_media_link_notify(struct media_link *link, u32 flags,
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unsigned int notification)
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{
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struct media_entity *source = link->source->entity;
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struct imx_media_pad_vdev *pad_vdev;
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struct list_head *pad_vdev_list;
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struct imx_media_dev *imxmd;
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struct video_device *vfd;
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struct v4l2_subdev *sd;
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int pad_idx, ret;
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ret = v4l2_pipeline_link_notify(link, flags, notification);
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if (ret)
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return ret;
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/* don't bother if source is not a subdev */
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if (!is_media_entity_v4l2_subdev(source))
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return 0;
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sd = media_entity_to_v4l2_subdev(source);
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pad_idx = link->source->index;
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imxmd = dev_get_drvdata(sd->v4l2_dev->dev);
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pad_vdev_list = to_pad_vdev_list(sd, pad_idx);
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if (!pad_vdev_list) {
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/* nothing to do if source sd has no pad vdev list */
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return 0;
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}
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/*
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* Before disabling a link, reset controls for all video
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* devices reachable from this link.
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*
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* After enabling a link, refresh controls for all video
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* devices reachable from this link.
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*/
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if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH &&
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!(flags & MEDIA_LNK_FL_ENABLED)) {
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list_for_each_entry(pad_vdev, pad_vdev_list, list) {
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vfd = pad_vdev->vdev->vfd;
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dev_dbg(imxmd->md.dev,
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"reset controls for %s\n",
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vfd->entity.name);
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v4l2_ctrl_handler_free(vfd->ctrl_handler);
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v4l2_ctrl_handler_init(vfd->ctrl_handler, 0);
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}
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} else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
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(link->flags & MEDIA_LNK_FL_ENABLED)) {
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list_for_each_entry(pad_vdev, pad_vdev_list, list) {
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vfd = pad_vdev->vdev->vfd;
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dev_dbg(imxmd->md.dev,
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"refresh controls for %s\n",
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vfd->entity.name);
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ret = imx_media_inherit_controls(imxmd, vfd,
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&vfd->entity);
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if (ret)
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break;
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}
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}
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return ret;
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}
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static void imx_media_notify(struct v4l2_subdev *sd, unsigned int notification,
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void *arg)
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{
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struct media_entity *entity = &sd->entity;
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int i;
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if (notification != V4L2_DEVICE_NOTIFY_EVENT)
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return;
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for (i = 0; i < entity->num_pads; i++) {
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struct media_pad *pad = &entity->pads[i];
|
||||||
|
struct imx_media_pad_vdev *pad_vdev;
|
||||||
|
struct list_head *pad_vdev_list;
|
||||||
|
|
||||||
|
pad_vdev_list = to_pad_vdev_list(sd, pad->index);
|
||||||
|
if (!pad_vdev_list)
|
||||||
|
continue;
|
||||||
|
list_for_each_entry(pad_vdev, pad_vdev_list, list)
|
||||||
|
v4l2_event_queue(pad_vdev->vdev->vfd, arg);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct v4l2_async_notifier_operations imx_media_notifier_ops = {
|
||||||
.bound = imx_media_subdev_bound,
|
.bound = imx_media_subdev_bound,
|
||||||
.complete = imx_media_probe_complete,
|
.complete = imx_media_probe_complete,
|
||||||
};
|
};
|
||||||
|
@ -19,7 +352,8 @@ static const struct media_device_ops imx_media_md_ops = {
|
||||||
.link_notify = imx_media_link_notify,
|
.link_notify = imx_media_link_notify,
|
||||||
};
|
};
|
||||||
|
|
||||||
struct imx_media_dev *imx_media_dev_init(struct device *dev)
|
struct imx_media_dev *imx_media_dev_init(struct device *dev,
|
||||||
|
const struct media_device_ops *ops)
|
||||||
{
|
{
|
||||||
struct imx_media_dev *imxmd;
|
struct imx_media_dev *imxmd;
|
||||||
int ret;
|
int ret;
|
||||||
|
@ -31,7 +365,7 @@ struct imx_media_dev *imx_media_dev_init(struct device *dev)
|
||||||
dev_set_drvdata(dev, imxmd);
|
dev_set_drvdata(dev, imxmd);
|
||||||
|
|
||||||
strscpy(imxmd->md.model, "imx-media", sizeof(imxmd->md.model));
|
strscpy(imxmd->md.model, "imx-media", sizeof(imxmd->md.model));
|
||||||
imxmd->md.ops = &imx_media_md_ops;
|
imxmd->md.ops = ops ? ops : &imx_media_md_ops;
|
||||||
imxmd->md.dev = dev;
|
imxmd->md.dev = dev;
|
||||||
|
|
||||||
mutex_init(&imxmd->mutex);
|
mutex_init(&imxmd->mutex);
|
||||||
|
@ -65,7 +399,8 @@ cleanup:
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL_GPL(imx_media_dev_init);
|
EXPORT_SYMBOL_GPL(imx_media_dev_init);
|
||||||
|
|
||||||
int imx_media_dev_notifier_register(struct imx_media_dev *imxmd)
|
int imx_media_dev_notifier_register(struct imx_media_dev *imxmd,
|
||||||
|
const struct v4l2_async_notifier_operations *ops)
|
||||||
{
|
{
|
||||||
int ret;
|
int ret;
|
||||||
|
|
||||||
|
@ -76,7 +411,7 @@ int imx_media_dev_notifier_register(struct imx_media_dev *imxmd)
|
||||||
}
|
}
|
||||||
|
|
||||||
/* prepare the async subdev notifier and register it */
|
/* prepare the async subdev notifier and register it */
|
||||||
imxmd->notifier.ops = &imx_media_subdev_ops;
|
imxmd->notifier.ops = ops ? ops : &imx_media_notifier_ops;
|
||||||
ret = v4l2_async_notifier_register(&imxmd->v4l2_dev,
|
ret = v4l2_async_notifier_register(&imxmd->v4l2_dev,
|
||||||
&imxmd->notifier);
|
&imxmd->notifier);
|
||||||
if (ret) {
|
if (ret) {
|
||||||
|
|
|
@ -2,24 +2,13 @@
|
||||||
/*
|
/*
|
||||||
* V4L2 Media Controller Driver for Freescale i.MX5/6 SOC
|
* V4L2 Media Controller Driver for Freescale i.MX5/6 SOC
|
||||||
*
|
*
|
||||||
* Copyright (c) 2016 Mentor Graphics Inc.
|
* Copyright (c) 2016-2019 Mentor Graphics Inc.
|
||||||
*/
|
*/
|
||||||
#include <linux/delay.h>
|
|
||||||
#include <linux/fs.h>
|
#include <linux/fs.h>
|
||||||
#include <linux/module.h>
|
#include <linux/module.h>
|
||||||
#include <linux/of_graph.h>
|
|
||||||
#include <linux/of_platform.h>
|
|
||||||
#include <linux/pinctrl/consumer.h>
|
|
||||||
#include <linux/platform_device.h>
|
#include <linux/platform_device.h>
|
||||||
#include <linux/sched.h>
|
#include <media/v4l2-async.h>
|
||||||
#include <linux/slab.h>
|
|
||||||
#include <linux/spinlock.h>
|
|
||||||
#include <linux/timer.h>
|
|
||||||
#include <media/v4l2-ctrls.h>
|
|
||||||
#include <media/v4l2-event.h>
|
#include <media/v4l2-event.h>
|
||||||
#include <media/v4l2-ioctl.h>
|
|
||||||
#include <media/v4l2-mc.h>
|
|
||||||
#include <video/imx-ipu-v3.h>
|
|
||||||
#include <media/imx.h>
|
#include <media/imx.h>
|
||||||
#include "imx-media.h"
|
#include "imx-media.h"
|
||||||
|
|
||||||
|
@ -29,9 +18,9 @@ static inline struct imx_media_dev *notifier2dev(struct v4l2_async_notifier *n)
|
||||||
}
|
}
|
||||||
|
|
||||||
/* async subdev bound notifier */
|
/* async subdev bound notifier */
|
||||||
int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
|
static int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
|
||||||
struct v4l2_subdev *sd,
|
struct v4l2_subdev *sd,
|
||||||
struct v4l2_async_subdev *asd)
|
struct v4l2_async_subdev *asd)
|
||||||
{
|
{
|
||||||
struct imx_media_dev *imxmd = notifier2dev(notifier);
|
struct imx_media_dev *imxmd = notifier2dev(notifier);
|
||||||
int ret;
|
int ret;
|
||||||
|
@ -48,318 +37,11 @@ int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
|
||||||
* Create the media links for all subdevs that registered.
|
|
||||||
* Called after all async subdevs have bound.
|
|
||||||
*/
|
|
||||||
static int imx_media_create_links(struct v4l2_async_notifier *notifier)
|
|
||||||
{
|
|
||||||
struct imx_media_dev *imxmd = notifier2dev(notifier);
|
|
||||||
struct v4l2_subdev *sd;
|
|
||||||
|
|
||||||
list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) {
|
|
||||||
switch (sd->grp_id) {
|
|
||||||
case IMX_MEDIA_GRP_ID_IPU_VDIC:
|
|
||||||
case IMX_MEDIA_GRP_ID_IPU_IC_PRP:
|
|
||||||
case IMX_MEDIA_GRP_ID_IPU_IC_PRPENC:
|
|
||||||
case IMX_MEDIA_GRP_ID_IPU_IC_PRPVF:
|
|
||||||
/*
|
|
||||||
* links have already been created for the
|
|
||||||
* sync-registered subdevs.
|
|
||||||
*/
|
|
||||||
break;
|
|
||||||
case IMX_MEDIA_GRP_ID_IPU_CSI0:
|
|
||||||
case IMX_MEDIA_GRP_ID_IPU_CSI1:
|
|
||||||
case IMX_MEDIA_GRP_ID_CSI:
|
|
||||||
imx_media_create_csi_of_links(imxmd, sd);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
/*
|
|
||||||
* if this subdev has fwnode links, create media
|
|
||||||
* links for them.
|
|
||||||
*/
|
|
||||||
imx_media_create_of_links(imxmd, sd);
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* adds given video device to given imx-media source pad vdev list.
|
|
||||||
* Continues upstream from the pad entity's sink pads.
|
|
||||||
*/
|
|
||||||
static int imx_media_add_vdev_to_pad(struct imx_media_dev *imxmd,
|
|
||||||
struct imx_media_video_dev *vdev,
|
|
||||||
struct media_pad *srcpad)
|
|
||||||
{
|
|
||||||
struct media_entity *entity = srcpad->entity;
|
|
||||||
struct imx_media_pad_vdev *pad_vdev;
|
|
||||||
struct list_head *pad_vdev_list;
|
|
||||||
struct media_link *link;
|
|
||||||
struct v4l2_subdev *sd;
|
|
||||||
int i, ret;
|
|
||||||
|
|
||||||
/* skip this entity if not a v4l2_subdev */
|
|
||||||
if (!is_media_entity_v4l2_subdev(entity))
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
sd = media_entity_to_v4l2_subdev(entity);
|
|
||||||
|
|
||||||
pad_vdev_list = to_pad_vdev_list(sd, srcpad->index);
|
|
||||||
if (!pad_vdev_list) {
|
|
||||||
v4l2_warn(&imxmd->v4l2_dev, "%s:%u has no vdev list!\n",
|
|
||||||
entity->name, srcpad->index);
|
|
||||||
/*
|
|
||||||
* shouldn't happen, but no reason to fail driver load,
|
|
||||||
* just skip this entity.
|
|
||||||
*/
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* just return if we've been here before */
|
|
||||||
list_for_each_entry(pad_vdev, pad_vdev_list, list) {
|
|
||||||
if (pad_vdev->vdev == vdev)
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
dev_dbg(imxmd->md.dev, "adding %s to pad %s:%u\n",
|
|
||||||
vdev->vfd->entity.name, entity->name, srcpad->index);
|
|
||||||
|
|
||||||
pad_vdev = devm_kzalloc(imxmd->md.dev, sizeof(*pad_vdev), GFP_KERNEL);
|
|
||||||
if (!pad_vdev)
|
|
||||||
return -ENOMEM;
|
|
||||||
|
|
||||||
/* attach this vdev to this pad */
|
|
||||||
pad_vdev->vdev = vdev;
|
|
||||||
list_add_tail(&pad_vdev->list, pad_vdev_list);
|
|
||||||
|
|
||||||
/* move upstream from this entity's sink pads */
|
|
||||||
for (i = 0; i < entity->num_pads; i++) {
|
|
||||||
struct media_pad *pad = &entity->pads[i];
|
|
||||||
|
|
||||||
if (!(pad->flags & MEDIA_PAD_FL_SINK))
|
|
||||||
continue;
|
|
||||||
|
|
||||||
list_for_each_entry(link, &entity->links, list) {
|
|
||||||
if (link->sink != pad)
|
|
||||||
continue;
|
|
||||||
ret = imx_media_add_vdev_to_pad(imxmd, vdev,
|
|
||||||
link->source);
|
|
||||||
if (ret)
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* For every subdevice, allocate an array of list_head's, one list_head
|
|
||||||
* for each pad, to hold the list of video devices reachable from that
|
|
||||||
* pad.
|
|
||||||
*/
|
|
||||||
static int imx_media_alloc_pad_vdev_lists(struct imx_media_dev *imxmd)
|
|
||||||
{
|
|
||||||
struct list_head *vdev_lists;
|
|
||||||
struct media_entity *entity;
|
|
||||||
struct v4l2_subdev *sd;
|
|
||||||
int i;
|
|
||||||
|
|
||||||
list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) {
|
|
||||||
entity = &sd->entity;
|
|
||||||
vdev_lists = devm_kcalloc(imxmd->md.dev,
|
|
||||||
entity->num_pads, sizeof(*vdev_lists),
|
|
||||||
GFP_KERNEL);
|
|
||||||
if (!vdev_lists)
|
|
||||||
return -ENOMEM;
|
|
||||||
|
|
||||||
/* attach to the subdev's host private pointer */
|
|
||||||
sd->host_priv = vdev_lists;
|
|
||||||
|
|
||||||
for (i = 0; i < entity->num_pads; i++)
|
|
||||||
INIT_LIST_HEAD(to_pad_vdev_list(sd, i));
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* form the vdev lists in all imx-media source pads */
|
|
||||||
static int imx_media_create_pad_vdev_lists(struct imx_media_dev *imxmd)
|
|
||||||
{
|
|
||||||
struct imx_media_video_dev *vdev;
|
|
||||||
struct media_link *link;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
ret = imx_media_alloc_pad_vdev_lists(imxmd);
|
|
||||||
if (ret)
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
list_for_each_entry(vdev, &imxmd->vdev_list, list) {
|
|
||||||
link = list_first_entry(&vdev->vfd->entity.links,
|
|
||||||
struct media_link, list);
|
|
||||||
ret = imx_media_add_vdev_to_pad(imxmd, vdev, link->source);
|
|
||||||
if (ret)
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* async subdev complete notifier */
|
/* async subdev complete notifier */
|
||||||
int imx_media_probe_complete(struct v4l2_async_notifier *notifier)
|
static const struct v4l2_async_notifier_operations imx_media_notifier_ops = {
|
||||||
{
|
.bound = imx_media_subdev_bound,
|
||||||
struct imx_media_dev *imxmd = notifier2dev(notifier);
|
.complete = imx_media_probe_complete,
|
||||||
int ret;
|
};
|
||||||
|
|
||||||
mutex_lock(&imxmd->mutex);
|
|
||||||
|
|
||||||
ret = imx_media_create_links(notifier);
|
|
||||||
if (ret)
|
|
||||||
goto unlock;
|
|
||||||
|
|
||||||
ret = imx_media_create_pad_vdev_lists(imxmd);
|
|
||||||
if (ret)
|
|
||||||
goto unlock;
|
|
||||||
|
|
||||||
ret = v4l2_device_register_subdev_nodes(&imxmd->v4l2_dev);
|
|
||||||
unlock:
|
|
||||||
mutex_unlock(&imxmd->mutex);
|
|
||||||
if (ret)
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
return media_device_register(&imxmd->md);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* adds controls to a video device from an entity subdevice.
|
|
||||||
* Continues upstream from the entity's sink pads.
|
|
||||||
*/
|
|
||||||
static int imx_media_inherit_controls(struct imx_media_dev *imxmd,
|
|
||||||
struct video_device *vfd,
|
|
||||||
struct media_entity *entity)
|
|
||||||
{
|
|
||||||
int i, ret = 0;
|
|
||||||
|
|
||||||
if (is_media_entity_v4l2_subdev(entity)) {
|
|
||||||
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
|
|
||||||
|
|
||||||
dev_dbg(imxmd->md.dev,
|
|
||||||
"adding controls to %s from %s\n",
|
|
||||||
vfd->entity.name, sd->entity.name);
|
|
||||||
|
|
||||||
ret = v4l2_ctrl_add_handler(vfd->ctrl_handler,
|
|
||||||
sd->ctrl_handler,
|
|
||||||
NULL, true);
|
|
||||||
if (ret)
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* move upstream */
|
|
||||||
for (i = 0; i < entity->num_pads; i++) {
|
|
||||||
struct media_pad *pad, *spad = &entity->pads[i];
|
|
||||||
|
|
||||||
if (!(spad->flags & MEDIA_PAD_FL_SINK))
|
|
||||||
continue;
|
|
||||||
|
|
||||||
pad = media_entity_remote_pad(spad);
|
|
||||||
if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
|
|
||||||
continue;
|
|
||||||
|
|
||||||
ret = imx_media_inherit_controls(imxmd, vfd, pad->entity);
|
|
||||||
if (ret)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
int imx_media_link_notify(struct media_link *link, u32 flags,
|
|
||||||
unsigned int notification)
|
|
||||||
{
|
|
||||||
struct media_entity *source = link->source->entity;
|
|
||||||
struct imx_media_pad_vdev *pad_vdev;
|
|
||||||
struct list_head *pad_vdev_list;
|
|
||||||
struct imx_media_dev *imxmd;
|
|
||||||
struct video_device *vfd;
|
|
||||||
struct v4l2_subdev *sd;
|
|
||||||
int pad_idx, ret;
|
|
||||||
|
|
||||||
ret = v4l2_pipeline_link_notify(link, flags, notification);
|
|
||||||
if (ret)
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
/* don't bother if source is not a subdev */
|
|
||||||
if (!is_media_entity_v4l2_subdev(source))
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
sd = media_entity_to_v4l2_subdev(source);
|
|
||||||
pad_idx = link->source->index;
|
|
||||||
|
|
||||||
imxmd = dev_get_drvdata(sd->v4l2_dev->dev);
|
|
||||||
|
|
||||||
pad_vdev_list = to_pad_vdev_list(sd, pad_idx);
|
|
||||||
if (!pad_vdev_list) {
|
|
||||||
/* shouldn't happen, but no reason to fail link setup */
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Before disabling a link, reset controls for all video
|
|
||||||
* devices reachable from this link.
|
|
||||||
*
|
|
||||||
* After enabling a link, refresh controls for all video
|
|
||||||
* devices reachable from this link.
|
|
||||||
*/
|
|
||||||
if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH &&
|
|
||||||
!(flags & MEDIA_LNK_FL_ENABLED)) {
|
|
||||||
list_for_each_entry(pad_vdev, pad_vdev_list, list) {
|
|
||||||
vfd = pad_vdev->vdev->vfd;
|
|
||||||
dev_dbg(imxmd->md.dev,
|
|
||||||
"reset controls for %s\n",
|
|
||||||
vfd->entity.name);
|
|
||||||
v4l2_ctrl_handler_free(vfd->ctrl_handler);
|
|
||||||
v4l2_ctrl_handler_init(vfd->ctrl_handler, 0);
|
|
||||||
}
|
|
||||||
} else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
|
|
||||||
(link->flags & MEDIA_LNK_FL_ENABLED)) {
|
|
||||||
list_for_each_entry(pad_vdev, pad_vdev_list, list) {
|
|
||||||
vfd = pad_vdev->vdev->vfd;
|
|
||||||
dev_dbg(imxmd->md.dev,
|
|
||||||
"refresh controls for %s\n",
|
|
||||||
vfd->entity.name);
|
|
||||||
ret = imx_media_inherit_controls(imxmd, vfd,
|
|
||||||
&vfd->entity);
|
|
||||||
if (ret)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
void imx_media_notify(struct v4l2_subdev *sd, unsigned int notification,
|
|
||||||
void *arg)
|
|
||||||
{
|
|
||||||
struct media_entity *entity = &sd->entity;
|
|
||||||
int i;
|
|
||||||
|
|
||||||
if (notification != V4L2_DEVICE_NOTIFY_EVENT)
|
|
||||||
return;
|
|
||||||
|
|
||||||
for (i = 0; i < entity->num_pads; i++) {
|
|
||||||
struct media_pad *pad = &entity->pads[i];
|
|
||||||
struct imx_media_pad_vdev *pad_vdev;
|
|
||||||
struct list_head *pad_vdev_list;
|
|
||||||
|
|
||||||
pad_vdev_list = to_pad_vdev_list(sd, pad->index);
|
|
||||||
if (!pad_vdev_list)
|
|
||||||
continue;
|
|
||||||
list_for_each_entry(pad_vdev, pad_vdev_list, list)
|
|
||||||
v4l2_event_queue(pad_vdev->vdev->vfd, arg);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static int imx_media_probe(struct platform_device *pdev)
|
static int imx_media_probe(struct platform_device *pdev)
|
||||||
{
|
{
|
||||||
|
@ -368,7 +50,7 @@ static int imx_media_probe(struct platform_device *pdev)
|
||||||
struct imx_media_dev *imxmd;
|
struct imx_media_dev *imxmd;
|
||||||
int ret;
|
int ret;
|
||||||
|
|
||||||
imxmd = imx_media_dev_init(dev);
|
imxmd = imx_media_dev_init(dev, NULL);
|
||||||
if (IS_ERR(imxmd))
|
if (IS_ERR(imxmd))
|
||||||
return PTR_ERR(imxmd);
|
return PTR_ERR(imxmd);
|
||||||
|
|
||||||
|
@ -379,7 +61,7 @@ static int imx_media_probe(struct platform_device *pdev)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
}
|
}
|
||||||
|
|
||||||
ret = imx_media_dev_notifier_register(imxmd);
|
ret = imx_media_dev_notifier_register(imxmd, &imx_media_notifier_ops);
|
||||||
if (ret)
|
if (ret)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
|
|
||||||
|
|
|
@ -416,7 +416,6 @@ void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp)
|
||||||
|
|
||||||
spin_unlock_irqrestore(&fim->lock, flags);
|
spin_unlock_irqrestore(&fim->lock, flags);
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL_GPL(imx_media_fim_eof_monitor);
|
|
||||||
|
|
||||||
/* Called by the subdev in its s_stream callback */
|
/* Called by the subdev in its s_stream callback */
|
||||||
int imx_media_fim_set_stream(struct imx_media_fim *fim,
|
int imx_media_fim_set_stream(struct imx_media_fim *fim,
|
||||||
|
@ -453,7 +452,6 @@ out:
|
||||||
v4l2_ctrl_unlock(fim->ctrl[FIM_CL_ENABLE]);
|
v4l2_ctrl_unlock(fim->ctrl[FIM_CL_ENABLE]);
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL_GPL(imx_media_fim_set_stream);
|
|
||||||
|
|
||||||
int imx_media_fim_add_controls(struct imx_media_fim *fim)
|
int imx_media_fim_add_controls(struct imx_media_fim *fim)
|
||||||
{
|
{
|
||||||
|
@ -461,7 +459,6 @@ int imx_media_fim_add_controls(struct imx_media_fim *fim)
|
||||||
return v4l2_ctrl_add_handler(fim->sd->ctrl_handler,
|
return v4l2_ctrl_add_handler(fim->sd->ctrl_handler,
|
||||||
&fim->ctrl_handler, NULL, false);
|
&fim->ctrl_handler, NULL, false);
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL_GPL(imx_media_fim_add_controls);
|
|
||||||
|
|
||||||
/* Called by the subdev in its subdev registered callback */
|
/* Called by the subdev in its subdev registered callback */
|
||||||
struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd)
|
struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd)
|
||||||
|
@ -485,10 +482,8 @@ struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd)
|
||||||
|
|
||||||
return fim;
|
return fim;
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL_GPL(imx_media_fim_init);
|
|
||||||
|
|
||||||
void imx_media_fim_free(struct imx_media_fim *fim)
|
void imx_media_fim_free(struct imx_media_fim *fim)
|
||||||
{
|
{
|
||||||
v4l2_ctrl_handler_free(&fim->ctrl_handler);
|
v4l2_ctrl_handler_free(&fim->ctrl_handler);
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL_GPL(imx_media_fim_free);
|
|
||||||
|
|
|
@ -73,6 +73,7 @@ err_out:
|
||||||
of_node_put(csi_np);
|
of_node_put(csi_np);
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
EXPORT_SYMBOL_GPL(imx_media_add_of_subdevs);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Create a single media link to/from sd using a fwnode link.
|
* Create a single media link to/from sd using a fwnode link.
|
||||||
|
@ -142,6 +143,7 @@ int imx_media_create_of_links(struct imx_media_dev *imxmd,
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
EXPORT_SYMBOL_GPL(imx_media_create_of_links);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Create media links to the given CSI subdevice's sink pads,
|
* Create media links to the given CSI subdevice's sink pads,
|
||||||
|
@ -185,3 +187,4 @@ int imx_media_create_csi_of_links(struct imx_media_dev *imxmd,
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
EXPORT_SYMBOL_GPL(imx_media_create_csi_of_links);
|
||||||
|
|
|
@ -213,18 +213,12 @@ int imx_media_pipeline_set_stream(struct imx_media_dev *imxmd,
|
||||||
struct media_entity *entity,
|
struct media_entity *entity,
|
||||||
bool on);
|
bool on);
|
||||||
|
|
||||||
/* imx-media-dev.c */
|
/* imx-media-dev-common.c */
|
||||||
int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
|
|
||||||
struct v4l2_subdev *sd,
|
|
||||||
struct v4l2_async_subdev *asd);
|
|
||||||
int imx_media_link_notify(struct media_link *link, u32 flags,
|
|
||||||
unsigned int notification);
|
|
||||||
void imx_media_notify(struct v4l2_subdev *sd, unsigned int notification,
|
|
||||||
void *arg);
|
|
||||||
int imx_media_probe_complete(struct v4l2_async_notifier *notifier);
|
int imx_media_probe_complete(struct v4l2_async_notifier *notifier);
|
||||||
|
struct imx_media_dev *imx_media_dev_init(struct device *dev,
|
||||||
struct imx_media_dev *imx_media_dev_init(struct device *dev);
|
const struct media_device_ops *ops);
|
||||||
int imx_media_dev_notifier_register(struct imx_media_dev *imxmd);
|
int imx_media_dev_notifier_register(struct imx_media_dev *imxmd,
|
||||||
|
const struct v4l2_async_notifier_operations *ops);
|
||||||
|
|
||||||
/* imx-media-fim.c */
|
/* imx-media-fim.c */
|
||||||
struct imx_media_fim;
|
struct imx_media_fim;
|
||||||
|
|
|
@ -1241,7 +1241,7 @@ static int imx7_csi_probe(struct platform_device *pdev)
|
||||||
}
|
}
|
||||||
|
|
||||||
/* add media device */
|
/* add media device */
|
||||||
imxmd = imx_media_dev_init(dev);
|
imxmd = imx_media_dev_init(dev, NULL);
|
||||||
if (IS_ERR(imxmd)) {
|
if (IS_ERR(imxmd)) {
|
||||||
ret = PTR_ERR(imxmd);
|
ret = PTR_ERR(imxmd);
|
||||||
goto destroy_mutex;
|
goto destroy_mutex;
|
||||||
|
@ -1252,7 +1252,7 @@ static int imx7_csi_probe(struct platform_device *pdev)
|
||||||
if (ret < 0 && ret != -ENODEV && ret != -EEXIST)
|
if (ret < 0 && ret != -ENODEV && ret != -EEXIST)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
|
|
||||||
ret = imx_media_dev_notifier_register(imxmd);
|
ret = imx_media_dev_notifier_register(imxmd, NULL);
|
||||||
if (ret < 0)
|
if (ret < 0)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue