// SPDX-License-Identifier: GPL-2.0+ /* * V4L2 Deinterlacer Subdev for Freescale i.MX5/6 SOC * * Copyright (c) 2017 Mentor Graphics Inc. */ #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-mc.h> #include <media/v4l2-subdev.h> #include <media/imx.h> #include "imx-media.h" /* * This subdev implements two different video pipelines: * * CSI -> VDIC * * In this pipeline, the CSI sends a single interlaced field F(n-1) * directly to the VDIC (and optionally the following field F(n) * can be sent to memory via IDMAC channel 13). This pipeline only works * in VDIC's high motion mode, which only requires a single field for * processing. The other motion modes (low and medium) require three * fields, so this pipeline does not work in those modes. Also, it is * not clear how this pipeline can deal with the various field orders * (sequential BT/TB, interlaced BT/TB). * * MEM -> CH8,9,10 -> VDIC * * In this pipeline, previous field F(n-1), current field F(n), and next * field F(n+1) are transferred to the VDIC via IDMAC channels 8,9,10. * These memory buffers can come from a video output or mem2mem device. * All motion modes are supported by this pipeline. * * The "direct" CSI->VDIC pipeline requires no DMA, but it can only be * used in high motion mode. */ struct vdic_priv; struct vdic_pipeline_ops { … }; /* * Min/Max supported width and heights. */ #define MIN_W … #define MIN_H … #define MAX_W_VDIC … #define MAX_H_VDIC … #define W_ALIGN … #define H_ALIGN … #define S_ALIGN … struct vdic_priv { … }; static void vdic_put_ipu_resources(struct vdic_priv *priv) { … } static int vdic_get_ipu_resources(struct vdic_priv *priv) { … } /* * This function is currently unused, but will be called when the * output/mem2mem device at the IDMAC input pad sends us a new * buffer. It kicks off the IDMAC read channels to bring in the * buffer fields from memory and begin the conversions. */ static void __maybe_unused prepare_vdi_in_buffers(struct vdic_priv *priv, struct imx_media_buffer *curr) { … } static int setup_vdi_channel(struct vdic_priv *priv, struct ipuv3_channel *channel, dma_addr_t phys0, dma_addr_t phys1) { … } static int vdic_setup_direct(struct vdic_priv *priv) { … } static void vdic_start_direct(struct vdic_priv *priv) { … } static void vdic_stop_direct(struct vdic_priv *priv) { … } static void vdic_disable_direct(struct vdic_priv *priv) { … } static int vdic_setup_indirect(struct vdic_priv *priv) { … } static void vdic_start_indirect(struct vdic_priv *priv) { … } static void vdic_stop_indirect(struct vdic_priv *priv) { … } static void vdic_disable_indirect(struct vdic_priv *priv) { … } static struct vdic_pipeline_ops direct_ops = …; static struct vdic_pipeline_ops indirect_ops = …; static int vdic_start(struct vdic_priv *priv) { … } static void vdic_stop(struct vdic_priv *priv) { … } /* * V4L2 subdev operations. */ static int vdic_s_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops vdic_ctrl_ops = …; static const char * const vdic_ctrl_motion_menu[] = …; static int vdic_init_controls(struct vdic_priv *priv) { … } static int vdic_s_stream(struct v4l2_subdev *sd, int enable) { … } static struct v4l2_mbus_framefmt * __vdic_get_fmt(struct vdic_priv *priv, struct v4l2_subdev_state *sd_state, unsigned int pad, enum v4l2_subdev_format_whence which) { … } static int vdic_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int vdic_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { … } static void vdic_try_fmt(struct vdic_priv *priv, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat, const struct imx_media_pixfmt **cc) { … } static int vdic_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { … } static int vdic_link_setup(struct media_entity *entity, const struct media_pad *local, const struct media_pad *remote, u32 flags) { … } static int vdic_link_validate(struct v4l2_subdev *sd, struct media_link *link, struct v4l2_subdev_format *source_fmt, struct v4l2_subdev_format *sink_fmt) { … } static int vdic_get_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *fi) { … } static int vdic_set_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *fi) { … } static int vdic_registered(struct v4l2_subdev *sd) { … } static void vdic_unregistered(struct v4l2_subdev *sd) { … } static const struct v4l2_subdev_pad_ops vdic_pad_ops = …; static const struct v4l2_subdev_video_ops vdic_video_ops = …; static const struct media_entity_operations vdic_entity_ops = …; static const struct v4l2_subdev_ops vdic_subdev_ops = …; static const struct v4l2_subdev_internal_ops vdic_internal_ops = …; struct v4l2_subdev *imx_media_vdic_register(struct v4l2_device *v4l2_dev, struct device *ipu_dev, struct ipu_soc *ipu, u32 grp_id) { … } int imx_media_vdic_unregister(struct v4l2_subdev *sd) { … }
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