On 4/5/19 8:03 AM, Marco Felsch wrote:
> Currently every driver needs to parse the connector endpoints by it self.
> This is the initial work to make this generic. The generic connector has
> some common fields and some connector specific parts. The generic one
> includes:
> - type
> - label
> - remote_port (the port where the connector is connected to)
> - remote_id (the endpoint where the connector is connected to)
>
> The specific fields are within a union, since only one of them can be
> available at the time. Since this is the initial support the patch adds
> only the analog-connector specific ones.
>
> Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> ---
> include/media/v4l2-connector.h | 34 ++++++++++++++++++++++++++++++++++
> include/media/v4l2-fwnode.h | 33 +++++++++++++++++++++++++++++++++
> 2 files changed, 67 insertions(+)
> create mode 100644 include/media/v4l2-connector.h
>
> diff --git a/include/media/v4l2-connector.h b/include/media/v4l2-connector.h
> new file mode 100644
> index 000000000000..967336e38215
> --- /dev/null
> +++ b/include/media/v4l2-connector.h
> @@ -0,0 +1,34 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * v4l2-connector.h
> + *
> + * V4L2 connector types.
> + *
> + * Copyright 2019 Pengutronix, Marco Felsch <kernel@xxxxxxxxxxxxxx>
> + */
> +
> +#ifndef V4L2_CONNECTOR_H
> +#define V4L2_CONNECTOR_H
> +
> +#define V4L2_CONNECTOR_MAX_LABEL 41
> +
> +/**
> + * enum v4l2_connector_type - connector type
> + * @V4L2_CON_UNKNOWN: unknown connector type, no V4L2 connetor configuration
> + * @V4L2_CON_COMPOSITE: analog composite connector
> + * @V4L2_CON_SVIDEO: analog svideo connector
> + * @V4L2_CON_VGA: analog vga connector
> + * @V4L2_CON_DVI: analog or digital dvi connector
I would drop VGA and DVI for now. Only add them if they are needed. These
connectors are rarely seen these days.
> + * @V4L2_CON_HDMI: digital hdmi connetor
connetor -> connector
Regards,
Hans
> + */
> +enum v4l2_connector_type {
> + V4L2_CON_UNKNOWN,
> + V4L2_CON_COMPOSITE,
> + V4L2_CON_SVIDEO,
> + V4L2_CON_VGA,
> + V4L2_CON_DVI,
> + V4L2_CON_HDMI,
> +};
> +
> +#endif /* V4L2_CONNECTOR_H */
> +
> diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
> index 6c07825e18b9..04344b71656f 100644
> --- a/include/media/v4l2-fwnode.h
> +++ b/include/media/v4l2-fwnode.h
> @@ -22,6 +22,7 @@
> #include <linux/list.h>
> #include <linux/types.h>
>
> +#include <media/v4l2-connector.h>
> #include <media/v4l2-mediabus.h>
> #include <media/v4l2-subdev.h>
>
> @@ -126,6 +127,38 @@ struct v4l2_fwnode_link {
> unsigned int remote_port;
> };
>
> +/**
> + * struct v4l2_fwnode_connector_analog - analog connector data structure
> + * @supported_tvnorms: tv norms this connector supports, set to V4L2_STD_ALL
> + * if no restrictions are specified.
> + */
> +struct v4l2_fwnode_connector_analog {
> + v4l2_std_id supported_tvnorms;
> +};
> +
> +/** struct v4l2_fwnode_connector - the connector data structure
> + * @remote_port: identifier of the port the remote endpoint belongs to
> + * @remote_id: identifier of the id the remote endpoint belongs to
> + * @label: connetor label
> + * @type: connector type
> + * @connector: union with connector configuration data struct
> + * @connector.analog: embedded &struct v4l2_fwnode_connector_analog.
> + * Used if connector is of type analog.
> + */
> +struct v4l2_fwnode_connector {
> + /* common fields for all v4l2_fwnode_connectors */
> + unsigned int remote_port;
> + unsigned int remote_id;
> + char label[V4L2_CONNECTOR_MAX_LABEL];
> + enum v4l2_connector_type type;
> +
> + /* connector specific fields */
> + union {
> + struct v4l2_fwnode_connector_analog analog;
> + /* future connectors */
> + } connector;
> +};
> +
> /**
> * v4l2_fwnode_endpoint_parse() - parse all fwnode node properties
> * @fwnode: pointer to the endpoint's fwnode handle
>
