[media] media: i2c: tvp7002: enable TVP7002 decoder for media controller based usage
This patch enables tvp7002 decoder driver for media controller based usage by adding v4l2_subdev_pad_ops operations support for enum_mbus_code, set_pad_format, get_pad_format and media_entity_init() on probe and media_entity_cleanup() on remove. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Lad, Prabhakar
Mauro Carvalho Chehab
parent
f743687690
commit
63eb2ca171
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@ -424,6 +424,7 @@ struct tvp7002 {
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int streaming;
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const struct tvp7002_timings_definition *current_timings;
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struct media_pad pad;
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};
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/*
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@ -880,6 +881,65 @@ static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {
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.s_ctrl = tvp7002_s_ctrl,
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};
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/*
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* tvp7002_enum_mbus_code() - Enum supported digital video format on pad
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* @sd: pointer to standard V4L2 sub-device structure
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* @fh: file handle for the subdev
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* @code: pointer to subdev enum mbus code struct
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*
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* Enumerate supported digital video formats for pad.
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*/
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static int
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tvp7002_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_mbus_code_enum *code)
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{
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/* Check requested format index is within range */
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if (code->index != 0)
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return -EINVAL;
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code->code = V4L2_MBUS_FMT_YUYV10_1X20;
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return 0;
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}
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/*
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* tvp7002_get_pad_format() - get video format on pad
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* @sd: pointer to standard V4L2 sub-device structure
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* @fh: file handle for the subdev
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* @fmt: pointer to subdev format struct
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*
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* get video format for pad.
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*/
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static int
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tvp7002_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_format *fmt)
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{
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struct tvp7002 *tvp7002 = to_tvp7002(sd);
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fmt->format.code = V4L2_MBUS_FMT_YUYV10_1X20;
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fmt->format.width = tvp7002->current_timings->timings.bt.width;
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fmt->format.height = tvp7002->current_timings->timings.bt.height;
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fmt->format.field = tvp7002->current_timings->scanmode;
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fmt->format.colorspace = tvp7002->current_timings->color_space;
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return 0;
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}
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/*
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* tvp7002_set_pad_format() - set video format on pad
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* @sd: pointer to standard V4L2 sub-device structure
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* @fh: file handle for the subdev
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* @fmt: pointer to subdev format struct
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*
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* set video format for pad.
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*/
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static int
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tvp7002_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_format *fmt)
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{
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return tvp7002_get_pad_format(sd, fh, fmt);
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}
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/* V4L2 core operation handlers */
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static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
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.g_chip_ident = tvp7002_g_chip_ident,
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@ -910,10 +970,18 @@ static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
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.enum_mbus_fmt = tvp7002_enum_mbus_fmt,
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};
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/* media pad related operation handlers */
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static const struct v4l2_subdev_pad_ops tvp7002_pad_ops = {
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.enum_mbus_code = tvp7002_enum_mbus_code,
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.get_fmt = tvp7002_get_pad_format,
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.set_fmt = tvp7002_set_pad_format,
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};
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/* V4L2 top level operation handlers */
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static const struct v4l2_subdev_ops tvp7002_ops = {
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.core = &tvp7002_core_ops,
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.video = &tvp7002_video_ops,
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.pad = &tvp7002_pad_ops,
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};
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/*
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@ -993,19 +1061,35 @@ static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
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timings = device->current_timings->timings;
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error = tvp7002_s_dv_timings(sd, &timings);
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#if defined(CONFIG_MEDIA_CONTROLLER)
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strlcpy(sd->name, TVP7002_MODULE_NAME, sizeof(sd->name));
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device->pad.flags = MEDIA_PAD_FL_SOURCE;
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device->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
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device->sd.entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER;
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error = media_entity_init(&device->sd.entity, 1, &device->pad, 0);
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if (error < 0)
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return error;
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#endif
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v4l2_ctrl_handler_init(&device->hdl, 1);
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v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops,
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V4L2_CID_GAIN, 0, 255, 1, 0);
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sd->ctrl_handler = &device->hdl;
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if (device->hdl.error) {
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int err = device->hdl.error;
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v4l2_ctrl_handler_free(&device->hdl);
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return err;
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error = device->hdl.error;
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goto error;
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}
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v4l2_ctrl_handler_setup(&device->hdl);
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return 0;
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error:
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v4l2_ctrl_handler_free(&device->hdl);
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#if defined(CONFIG_MEDIA_CONTROLLER)
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media_entity_cleanup(&device->sd.entity);
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#endif
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return error;
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}
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/*
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@ -1022,7 +1106,9 @@ static int tvp7002_remove(struct i2c_client *c)
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v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter"
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"on address 0x%x\n", c->addr);
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#if defined(CONFIG_MEDIA_CONTROLLER)
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media_entity_cleanup(&device->sd.entity);
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#endif
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v4l2_device_unregister_subdev(sd);
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v4l2_ctrl_handler_free(&device->hdl);
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return 0;
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@ -26,6 +26,8 @@
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#ifndef _TVP7002_H_
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#define _TVP7002_H_
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#define TVP7002_MODULE_NAME "tvp7002"
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/* Platform-dependent data
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*
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* clk_polarity:
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