// SPDX-License-Identifier: GPL-2.0+ /* * V4L2 Image Converter Subdev for Freescale i.MX5/6 SOC * * Copyright (c) 2014-2016 Mentor Graphics Inc. */ #include <media/v4l2-device.h> #include <media/v4l2-subdev.h> #include "imx-media.h" #include "imx-ic.h" #define IC_TASK_PRP IC_NUM_TASKS #define IC_NUM_OPS (IC_NUM_TASKS + 1) static struct imx_ic_ops *ic_ops[IC_NUM_OPS] = { [IC_TASK_PRP] = &imx_ic_prp_ops, [IC_TASK_ENCODER] = &imx_ic_prpencvf_ops, [IC_TASK_VIEWFINDER] = &imx_ic_prpencvf_ops, }; struct v4l2_subdev *imx_media_ic_register(struct v4l2_device *v4l2_dev, struct device *ipu_dev, struct ipu_soc *ipu, u32 grp_id) { struct imx_ic_priv *priv; int ret; priv = devm_kzalloc(ipu_dev, sizeof(*priv), GFP_KERNEL); if (!priv) return ERR_PTR(-ENOMEM); priv->ipu_dev = ipu_dev; priv->ipu = ipu; /* get our IC task id */ switch (grp_id) { case IMX_MEDIA_GRP_ID_IPU_IC_PRP: priv->task_id = IC_TASK_PRP; break; case IMX_MEDIA_GRP_ID_IPU_IC_PRPENC: priv->task_id = IC_TASK_ENCODER; break; case IMX_MEDIA_GRP_ID_IPU_IC_PRPVF: priv->task_id = IC_TASK_VIEWFINDER; break; default: return ERR_PTR(-EINVAL); } v4l2_subdev_init(&priv->sd, ic_ops[priv->task_id]->subdev_ops); v4l2_set_subdevdata(&priv->sd, priv); priv->sd.internal_ops = ic_ops[priv->task_id]->internal_ops; priv->sd.entity.ops = ic_ops[priv->task_id]->entity_ops; priv->sd.entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER; priv->sd.owner = ipu_dev->driver->owner; priv->sd.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; priv->sd.grp_id = grp_id; imx_media_grp_id_to_sd_name(priv->sd.name, sizeof(priv->sd.name), priv->sd.grp_id, ipu_get_num(ipu)); ret = ic_ops[priv->task_id]->init(priv); if (ret) return ERR_PTR(ret); ret = v4l2_device_register_subdev(v4l2_dev, &priv->sd); if (ret) { ic_ops[priv->task_id]->remove(priv); return ERR_PTR(ret); } return &priv->sd; } int imx_media_ic_unregister(struct v4l2_subdev *sd) { struct imx_ic_priv *priv = container_of(sd, struct imx_ic_priv, sd); v4l2_info(sd, "Removing\n"); ic_ops[priv->task_id]->remove(priv); v4l2_device_unregister_subdev(sd); media_entity_cleanup(&sd->entity); return 0; }