diff mbox series

[10/10] media: uvcvideo: Populate only active control classes

Message ID 20210311122040.1264410-12-ribalda@chromium.org (mailing list archive)
State New, archived
Headers show
Series uvcvideo: Pass v4l2-compliance test | expand

Commit Message

Ricardo Ribalda March 11, 2021, 12:20 p.m. UTC 
Do not create Control Classes for empty classes.

Fixes v4l2-compliance:

Control ioctls (Input 0):
	                fail: v4l2-test-controls.cpp(255): no controls in class 009d0000
	test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: FAIL

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
 drivers/media/usb/uvc/uvc_ctrl.c   | 11 +++++++++++
 drivers/media/usb/uvc/uvc_driver.c |  1 -
 drivers/media/usb/uvc/uvcvideo.h   |  1 -
 3 files changed, 11 insertions(+), 2 deletions(-)

Comments

Hans Verkuil March 11, 2021, 2:31 p.m. UTC | #1 
On 11/03/2021 13:20, Ricardo Ribalda wrote:
> Do not create Control Classes for empty classes.

Shouldn't this be squashed with patch 06/10?

Regards,

	Hans

> 
> Fixes v4l2-compliance:
> 
> Control ioctls (Input 0):
> 	                fail: v4l2-test-controls.cpp(255): no controls in class 009d0000
> 	test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: FAIL
> 
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> ---
>  drivers/media/usb/uvc/uvc_ctrl.c   | 11 +++++++++++
>  drivers/media/usb/uvc/uvc_driver.c |  1 -
>  drivers/media/usb/uvc/uvcvideo.h   |  1 -
>  3 files changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
> index 433342efc63f..5efbb3b5aa5b 100644
> --- a/drivers/media/usb/uvc/uvc_ctrl.c
> +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> @@ -2128,6 +2128,17 @@ static int __uvc_ctrl_add_mapping(struct uvc_device *dev,
>  	if (map->set == NULL)
>  		map->set = uvc_set_le_value;
>  
> +	switch (V4L2_CTRL_ID2WHICH(map->id)) {
> +	case V4L2_CTRL_ID2WHICH(V4L2_CID_CAMERA_CLASS):
> +		dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
> +						BIT(UVC_CC_CAMERA_CLASS);
> +		break;
> +	case V4L2_CTRL_ID2WHICH(V4L2_CID_USER_CLASS):
> +		dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
> +						BIT(UVC_CC_USER_CLASS);
> +		break;
> +	}
> +
>  	list_add_tail(&map->list, &ctrl->info.mappings);
>  	uvc_dbg(dev, CONTROL, "Adding mapping '%s' to control %pUl/%u\n",
>  		map->name, ctrl->info.entity, ctrl->info.selector);
> diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
> index 996e8bd06ac5..4f368ab3a1f1 100644
> --- a/drivers/media/usb/uvc/uvc_driver.c
> +++ b/drivers/media/usb/uvc/uvc_driver.c
> @@ -1501,7 +1501,6 @@ static int uvc_ctrl_class_parse(struct uvc_device *dev)
>  
>  	unit->ctrl_class.bControlSize = 1;
>  	unit->ctrl_class.bmControls = (u8 *)unit + sizeof(*unit);
> -	unit->ctrl_class.bmControls[0] = (1 << (UVC_CC_LAST_CLASS + 1)) - 1;
>  	unit->get_info = uvc_ctrl_class_get_info;
>  	strncpy(unit->name, "Control Class", sizeof(unit->name) - 1);
>  
> diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
> index 1d59ac10c2eb..cc573d63e459 100644
> --- a/drivers/media/usb/uvc/uvcvideo.h
> +++ b/drivers/media/usb/uvc/uvcvideo.h
> @@ -186,7 +186,6 @@
>   */
>  #define UVC_CC_CAMERA_CLASS	0
>  #define UVC_CC_USER_CLASS	1
> -#define UVC_CC_LAST_CLASS	UVC_CC_USER_CLASS
>  
>  /* ------------------------------------------------------------------------
>   * Driver specific constants.
>
Ricardo Ribalda Delgado March 11, 2021, 3:21 p.m. UTC | #2 
Hi Hans

Thanks for your review!

On Thu, Mar 11, 2021 at 3:32 PM Hans Verkuil <hverkuil@xs4all.nl> wrote:
>
> On 11/03/2021 13:20, Ricardo Ribalda wrote:
> > Do not create Control Classes for empty classes.
>
> Shouldn't this be squashed with patch 06/10?

Most of the cameras I have used have the two classes, So  I am not
sure if squash with 6/10, or remove it. I separated it to feel what
Laurent has to say :)

>
> Regards,
>
>         Hans
>
> >
> > Fixes v4l2-compliance:
> >
> > Control ioctls (Input 0):
> >                       fail: v4l2-test-controls.cpp(255): no controls in class 009d0000
> >       test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: FAIL
> >
> > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> > ---
> >  drivers/media/usb/uvc/uvc_ctrl.c   | 11 +++++++++++
> >  drivers/media/usb/uvc/uvc_driver.c |  1 -
> >  drivers/media/usb/uvc/uvcvideo.h   |  1 -
> >  3 files changed, 11 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
> > index 433342efc63f..5efbb3b5aa5b 100644
> > --- a/drivers/media/usb/uvc/uvc_ctrl.c
> > +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> > @@ -2128,6 +2128,17 @@ static int __uvc_ctrl_add_mapping(struct uvc_device *dev,
> >       if (map->set == NULL)
> >               map->set = uvc_set_le_value;
> >
> > +     switch (V4L2_CTRL_ID2WHICH(map->id)) {
> > +     case V4L2_CTRL_ID2WHICH(V4L2_CID_CAMERA_CLASS):
> > +             dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
> > +                                             BIT(UVC_CC_CAMERA_CLASS);
> > +             break;
> > +     case V4L2_CTRL_ID2WHICH(V4L2_CID_USER_CLASS):
> > +             dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
> > +                                             BIT(UVC_CC_USER_CLASS);
> > +             break;
> > +     }
> > +
> >       list_add_tail(&map->list, &ctrl->info.mappings);
> >       uvc_dbg(dev, CONTROL, "Adding mapping '%s' to control %pUl/%u\n",
> >               map->name, ctrl->info.entity, ctrl->info.selector);
> > diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
> > index 996e8bd06ac5..4f368ab3a1f1 100644
> > --- a/drivers/media/usb/uvc/uvc_driver.c
> > +++ b/drivers/media/usb/uvc/uvc_driver.c
> > @@ -1501,7 +1501,6 @@ static int uvc_ctrl_class_parse(struct uvc_device *dev)
> >
> >       unit->ctrl_class.bControlSize = 1;
> >       unit->ctrl_class.bmControls = (u8 *)unit + sizeof(*unit);
> > -     unit->ctrl_class.bmControls[0] = (1 << (UVC_CC_LAST_CLASS + 1)) - 1;
> >       unit->get_info = uvc_ctrl_class_get_info;
> >       strncpy(unit->name, "Control Class", sizeof(unit->name) - 1);
> >
> > diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
> > index 1d59ac10c2eb..cc573d63e459 100644
> > --- a/drivers/media/usb/uvc/uvcvideo.h
> > +++ b/drivers/media/usb/uvc/uvcvideo.h
> > @@ -186,7 +186,6 @@
> >   */
> >  #define UVC_CC_CAMERA_CLASS  0
> >  #define UVC_CC_USER_CLASS    1
> > -#define UVC_CC_LAST_CLASS    UVC_CC_USER_CLASS
> >
> >  /* ------------------------------------------------------------------------
> >   * Driver specific constants.
> >
>
Laurent Pinchart March 11, 2021, 3:59 p.m. UTC | #3 
Hi Ricardo,

On Thu, Mar 11, 2021 at 04:21:38PM +0100, Ricardo Ribalda Delgado wrote:
> On Thu, Mar 11, 2021 at 3:32 PM Hans Verkuil <hverkuil@xs4all.nl> wrote:
> >
> > On 11/03/2021 13:20, Ricardo Ribalda wrote:
> > > Do not create Control Classes for empty classes.
> >
> > Shouldn't this be squashed with patch 06/10?
> 
> Most of the cameras I have used have the two classes, So  I am not
> sure if squash with 6/10, or remove it. I separated it to feel what
> Laurent has to say :)

I think it makes sense to only expose the classes that are being used,
so the change is good. As it fixes a bug introduced in 06/10, I'd squash
it.

> > > Fixes v4l2-compliance:
> > >
> > > Control ioctls (Input 0):
> > >                       fail: v4l2-test-controls.cpp(255): no controls in class 009d0000
> > >       test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: FAIL
> > >
> > > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> > > ---
> > >  drivers/media/usb/uvc/uvc_ctrl.c   | 11 +++++++++++
> > >  drivers/media/usb/uvc/uvc_driver.c |  1 -
> > >  drivers/media/usb/uvc/uvcvideo.h   |  1 -
> > >  3 files changed, 11 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
> > > index 433342efc63f..5efbb3b5aa5b 100644
> > > --- a/drivers/media/usb/uvc/uvc_ctrl.c
> > > +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> > > @@ -2128,6 +2128,17 @@ static int __uvc_ctrl_add_mapping(struct uvc_device *dev,
> > >       if (map->set == NULL)
> > >               map->set = uvc_set_le_value;
> > >
> > > +     switch (V4L2_CTRL_ID2WHICH(map->id)) {
> > > +     case V4L2_CTRL_ID2WHICH(V4L2_CID_CAMERA_CLASS):
> > > +             dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
> > > +                                             BIT(UVC_CC_CAMERA_CLASS);
> > > +             break;
> > > +     case V4L2_CTRL_ID2WHICH(V4L2_CID_USER_CLASS):
> > > +             dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
> > > +                                             BIT(UVC_CC_USER_CLASS);
> > > +             break;
> > > +     }
> > > +
> > >       list_add_tail(&map->list, &ctrl->info.mappings);
> > >       uvc_dbg(dev, CONTROL, "Adding mapping '%s' to control %pUl/%u\n",
> > >               map->name, ctrl->info.entity, ctrl->info.selector);
> > > diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
> > > index 996e8bd06ac5..4f368ab3a1f1 100644
> > > --- a/drivers/media/usb/uvc/uvc_driver.c
> > > +++ b/drivers/media/usb/uvc/uvc_driver.c
> > > @@ -1501,7 +1501,6 @@ static int uvc_ctrl_class_parse(struct uvc_device *dev)
> > >
> > >       unit->ctrl_class.bControlSize = 1;
> > >       unit->ctrl_class.bmControls = (u8 *)unit + sizeof(*unit);
> > > -     unit->ctrl_class.bmControls[0] = (1 << (UVC_CC_LAST_CLASS + 1)) - 1;
> > >       unit->get_info = uvc_ctrl_class_get_info;
> > >       strncpy(unit->name, "Control Class", sizeof(unit->name) - 1);
> > >
> > > diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
> > > index 1d59ac10c2eb..cc573d63e459 100644
> > > --- a/drivers/media/usb/uvc/uvcvideo.h
> > > +++ b/drivers/media/usb/uvc/uvcvideo.h
> > > @@ -186,7 +186,6 @@
> > >   */
> > >  #define UVC_CC_CAMERA_CLASS  0
> > >  #define UVC_CC_USER_CLASS    1
> > > -#define UVC_CC_LAST_CLASS    UVC_CC_USER_CLASS
> > >
> > >  /* ------------------------------------------------------------------------
> > >   * Driver specific constants.
diff mbox series

Patch

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 433342efc63f..5efbb3b5aa5b 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -2128,6 +2128,17 @@  static int __uvc_ctrl_add_mapping(struct uvc_device *dev,
 	if (map->set == NULL)
 		map->set = uvc_set_le_value;
 
+	switch (V4L2_CTRL_ID2WHICH(map->id)) {
+	case V4L2_CTRL_ID2WHICH(V4L2_CID_CAMERA_CLASS):
+		dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
+						BIT(UVC_CC_CAMERA_CLASS);
+		break;
+	case V4L2_CTRL_ID2WHICH(V4L2_CID_USER_CLASS):
+		dev->ctrl_class_unit->ctrl_class.bmControls[0] |=
+						BIT(UVC_CC_USER_CLASS);
+		break;
+	}
+
 	list_add_tail(&map->list, &ctrl->info.mappings);
 	uvc_dbg(dev, CONTROL, "Adding mapping '%s' to control %pUl/%u\n",
 		map->name, ctrl->info.entity, ctrl->info.selector);
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 996e8bd06ac5..4f368ab3a1f1 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -1501,7 +1501,6 @@  static int uvc_ctrl_class_parse(struct uvc_device *dev)
 
 	unit->ctrl_class.bControlSize = 1;
 	unit->ctrl_class.bmControls = (u8 *)unit + sizeof(*unit);
-	unit->ctrl_class.bmControls[0] = (1 << (UVC_CC_LAST_CLASS + 1)) - 1;
 	unit->get_info = uvc_ctrl_class_get_info;
 	strncpy(unit->name, "Control Class", sizeof(unit->name) - 1);
 
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index 1d59ac10c2eb..cc573d63e459 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -186,7 +186,6 @@ 
  */
 #define UVC_CC_CAMERA_CLASS	0
 #define UVC_CC_USER_CLASS	1
-#define UVC_CC_LAST_CLASS	UVC_CC_USER_CLASS
 
 /* ------------------------------------------------------------------------
  * Driver specific constants.