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Tue, 25 Apr 2023 09:45:26 +0000 From: Michael Riesch Date: Tue, 25 Apr 2023 11:45:14 +0200 Subject: [PATCH RFC v2 4/6] media: v4l2-ctrls: add lens group speed controls for zoom and focus Message-Id: <20230406-feature-controls-lens-v2-4-faa8ad2bc404@wolfvision.net> References: <20230406-feature-controls-lens-v2-0-faa8ad2bc404@wolfvision.net> In-Reply-To: <20230406-feature-controls-lens-v2-0-faa8ad2bc404@wolfvision.net> To: Mauro Carvalho Chehab Cc: libcamera-devel@lists.libcamera.org, Laurent Pinchart , Sakari Ailus , Hans Verkuil , Matthias Fend , Dave Stevenson , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Michael Riesch X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1682415922; l=3264; i=michael.riesch@wolfvision.net; s=20230425; h=from:subject:message-id; bh=B6OiJRa47o14LtJJ73V2E+VFtxvPLWW9YHiaI+U9DCE=; b=JtypR8MO8CEbYK0b+q55Wzuz0OY62YDr3AARmuBx0AF9uIg5IbZwZ8S57w/DXaxkykw2d5KJI VLue5UZQOq0DHIWfSvqtvLD+7Zrn6KwjslShkZGLCNLDlRFVQdYK5dR X-Developer-Key: i=michael.riesch@wolfvision.net; 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Signed-off-by: Michael Riesch --- Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst | 10 ++++++++++ drivers/media/v4l2-core/v4l2-ctrls-defs.c | 2 ++ include/uapi/linux/v4l2-controls.h | 2 ++ 3 files changed, 14 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst index 3ea4175f9619..a17620ab03b9 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst @@ -174,6 +174,11 @@ enum v4l2_exposure_metering - will not transition from this state until another action is performed by an application. +``V4L2_CID_FOCUS_SPEED (integer)`` + Set the speed with which the focus lens group of the camera is moved + (V4L2_CID_FOCUS_ABSOLUTE and V4L2_CID_FOCUS_RELATIVE). The unit is + driver-specific. The value should be a positive integer. + ``V4L2_CID_FOCUS_AUTO (boolean)`` Enables continuous automatic focus adjustments. The effect of manual focus adjustments while this feature is enabled is undefined, @@ -287,6 +292,11 @@ enum v4l2_auto_focus_range - not transition from this state until another action is performed by an application. +``V4L2_CID_ZOOM_SPEED (integer)`` + Set the speed with which the zoom lens group of the camera is moved + (V4L2_CID_ZOOM_ABSOLUTE and V4L2_CID_ZOOM_RELATIVE). The unit is + driver-specific. The value should be a positive integer. + ``V4L2_CID_IRIS_ABSOLUTE (integer)`` This control sets the camera's aperture to the specified value. The unit is undefined. Larger values open the iris wider, smaller values diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c index 794ef3ab0c02..3ef465ba73bd 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c +++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c @@ -1048,6 +1048,8 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_FOCUS_STATUS: return "Focus, Status"; case V4L2_CID_ZOOM_CURRENT: return "Zoom, Current"; case V4L2_CID_ZOOM_STATUS: return "Zoom, Status"; + case V4L2_CID_FOCUS_SPEED: return "Focus, Speed"; + case V4L2_CID_ZOOM_SPEED: return "Zoom, Speed"; /* FM Radio Modulator controls */ /* Keep the order of the 'case's the same as in v4l2-controls.h! */ diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 793ee8c65e87..8d84508d4db8 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -1001,6 +1001,8 @@ enum v4l2_auto_focus_range { #define V4L2_CID_FOCUS_STATUS (V4L2_CID_CAMERA_CLASS_BASE+38) #define V4L2_CID_ZOOM_CURRENT (V4L2_CID_CAMERA_CLASS_BASE+39) #define V4L2_CID_ZOOM_STATUS (V4L2_CID_CAMERA_CLASS_BASE+40) +#define V4L2_CID_FOCUS_SPEED (V4L2_CID_CAMERA_CLASS_BASE+41) +#define V4L2_CID_ZOOM_SPEED (V4L2_CID_CAMERA_CLASS_BASE+42) /* FM Modulator class control IDs */