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[media] adv7180: Add media controller support

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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: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Federico Vaga <federico.vaga@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Lars-Peter Clausen 2015-01-23 12:52:26 -03:00 committed by Mauro Carvalho Chehab
parent c18818e990
commit d5d51a827b
4 changed files with 43 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/i2c/Kconfig
View File

@ -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.

50
drivers/media/i2c/adv7180.c
View File

@ -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;

1
drivers/media/pci/sta2x11/Kconfig
View File

@ -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

2
drivers/media/platform/Kconfig
View File

@ -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