Commit d5d51a82 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mauro Carvalho Chehab
Browse files

[media] adv7180: Add media controller support 



Add media controller support to the adv7180 driver by registering a media
entity instance for it as well as implementing pad ops for configuring the
format.

As there currently don't seem to be any users of the video ops format
operations those are removed as well in this patch.

Also set the V4L2_SUBDEV_FL_HAS_DEVNODE flag for the subdevice so it is
possible to create a subdevice device node.

Since the driver now depends on VIDEO_V4L2_SUBDEV_API all drivers which
select the driver need to depend on that symbol as well.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Acked-by: default avatarFederico Vaga <federico.vaga@gmail.com>
Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent c18818e9

drivers/media/i2c/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -177,7 +177,7 @@ comment "Video decoders" 


config VIDEO_ADV7180

	tristate "Analog Devices ADV7180 decoder"

	depends on VIDEO_V4L2 && I2C

	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API

	---help---

	  Support for the Analog Devices ADV7180 video decoder.

drivers/media/i2c/adv7180.c

+40 −10
Original line number Diff line number Diff line
@@ -124,6 +124,7 @@ 
struct adv7180_state {

	struct v4l2_ctrl_handler ctrl_hdl;

	struct v4l2_subdev	sd;

	struct media_pad	pad;

	struct mutex		mutex; /* mutual excl. when accessing chip */

	int			irq;

	v4l2_std_id		curr_norm;
@@ -441,13 +442,14 @@ static void adv7180_exit_controls(struct adv7180_state *state) 
	v4l2_ctrl_handler_free(&state->ctrl_hdl);

}



static int adv7180_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index,

				 u32 *code)

static int adv7180_enum_mbus_code(struct v4l2_subdev *sd,

				  struct v4l2_subdev_fh *fh,

				  struct v4l2_subdev_mbus_code_enum *code)

{

	if (index > 0)

	if (code->index != 0)

		return -EINVAL;



	*code = MEDIA_BUS_FMT_YUYV8_2X8;

	code->code = MEDIA_BUS_FMT_YUYV8_2X8;



	return 0;

}
@@ -466,6 +468,20 @@ static int adv7180_mbus_fmt(struct v4l2_subdev *sd, 
	return 0;

}



static int adv7180_get_pad_format(struct v4l2_subdev *sd,

				  struct v4l2_subdev_fh *fh,

				  struct v4l2_subdev_format *format)

{

	return adv7180_mbus_fmt(sd, &format->format);

}



static int adv7180_set_pad_format(struct v4l2_subdev *sd,

				  struct v4l2_subdev_fh *fh,

				  struct v4l2_subdev_format *format)

{

	return adv7180_mbus_fmt(sd, &format->format);

}



static int adv7180_g_mbus_config(struct v4l2_subdev *sd,

				 struct v4l2_mbus_config *cfg)

{
@@ -485,10 +501,6 @@ static const struct v4l2_subdev_video_ops adv7180_video_ops = { 
	.querystd = adv7180_querystd,

	.g_input_status = adv7180_g_input_status,

	.s_routing = adv7180_s_routing,

	.enum_mbus_fmt = adv7180_enum_mbus_fmt,

	.try_mbus_fmt = adv7180_mbus_fmt,

	.g_mbus_fmt = adv7180_mbus_fmt,

	.s_mbus_fmt = adv7180_mbus_fmt,

	.g_mbus_config = adv7180_g_mbus_config,

};
@@ -496,9 +508,16 @@ static const struct v4l2_subdev_core_ops adv7180_core_ops = { 
	.s_power = adv7180_s_power,

};



static const struct v4l2_subdev_pad_ops adv7180_pad_ops = {

	.enum_mbus_code = adv7180_enum_mbus_code,

	.set_fmt = adv7180_set_pad_format,

	.get_fmt = adv7180_get_pad_format,

};



static const struct v4l2_subdev_ops adv7180_ops = {

	.core = &adv7180_core_ops,

	.video = &adv7180_video_ops,

	.pad = &adv7180_pad_ops,

};



static irqreturn_t adv7180_irq(int irq, void *devid)
@@ -627,20 +646,28 @@ static int adv7180_probe(struct i2c_client *client, 
	state->input = 0;

	sd = &state->sd;

	v4l2_i2c_subdev_init(sd, client, &adv7180_ops);

	sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE;



	ret = adv7180_init_controls(state);

	if (ret)

		goto err_unreg_subdev;

	ret = init_device(state);



	state->pad.flags = MEDIA_PAD_FL_SOURCE;

	sd->entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER;

	ret = media_entity_init(&sd->entity, 1, &state->pad, 0);

	if (ret)

		goto err_free_ctrl;



	ret = init_device(state);

	if (ret)

		goto err_media_entity_cleanup;



	if (state->irq) {

		ret = request_threaded_irq(client->irq, NULL, adv7180_irq,

					   IRQF_ONESHOT | IRQF_TRIGGER_FALLING,

					   KBUILD_MODNAME, state);

		if (ret)

			goto err_free_ctrl;

			goto err_media_entity_cleanup;

	}



	ret = v4l2_async_register_subdev(sd);
@@ -652,6 +679,8 @@ static int adv7180_probe(struct i2c_client *client, 
err_free_irq:

	if (state->irq > 0)

		free_irq(client->irq, state);

err_media_entity_cleanup:

	media_entity_cleanup(&sd->entity);

err_free_ctrl:

	adv7180_exit_controls(state);

err_unreg_subdev:
@@ -669,6 +698,7 @@ static int adv7180_remove(struct i2c_client *client) 
	if (state->irq > 0)

		free_irq(client->irq, state);



	media_entity_cleanup(&sd->entity);

	adv7180_exit_controls(state);

	mutex_destroy(&state->mutex);

	return 0;

drivers/media/pci/sta2x11/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ config STA2X11_VIP 
	select VIDEO_ADV7180 if MEDIA_SUBDRV_AUTOSELECT

	select VIDEOBUF2_DMA_CONTIG

	depends on PCI && VIDEO_V4L2 && VIRT_TO_BUS

	depends on VIDEO_V4L2_SUBDEV_API

	depends on I2C

	help

	  Say Y for support for STA2X11 VIP (Video Input Port) capture

drivers/media/platform/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -56,7 +56,7 @@ config VIDEO_VIU 


config VIDEO_TIMBERDALE

	tristate "Support for timberdale Video In/LogiWIN"

	depends on VIDEO_V4L2 && I2C

	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API

	depends on (MFD_TIMBERDALE && TIMB_DMA) || COMPILE_TEST

	select VIDEO_ADV7180

	select VIDEOBUF_DMA_CONTIG

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