[PATCH 5/6] media: uvcvideo: Refactor power_line_frequency_controls_limited

From: Ricardo Ribalda
Date: Thu Jan 05 2023 - 07:34:02 EST


Move the control mapping to uvc_ctrl.c. This way we do not have
references to UVC controls or V4L2 controls in uvc_driver.c

Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_ctrl.c | 13 +++++++++++++
drivers/media/usb/uvc/uvc_driver.c | 18 ------------------
drivers/media/usb/uvc/uvcvideo.h | 1 +
3 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 9af64f7a23d3..f559a1ac6e3c 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -723,6 +723,19 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
};

+const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited = {
+ .id = V4L2_CID_POWER_LINE_FREQUENCY,
+ .entity = UVC_GUID_UVC_PROCESSING,
+ .selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
+ .size = 2,
+ .offset = 0,
+ .v4l2_type = V4L2_CTRL_TYPE_MENU,
+ .data_type = UVC_CTRL_DATA_TYPE_ENUM,
+ .menu_info = power_line_frequency_controls,
+ .menu_mask = GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
+ V4L2_CID_POWER_LINE_FREQUENCY_50HZ),
+};
+
static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_uvc11 = {
.id = V4L2_CID_POWER_LINE_FREQUENCY,
.entity = UVC_GUID_UVC_PROCESSING,
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index e659670ea2d8..37d2b08bc8b2 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2378,24 +2378,6 @@ MODULE_PARM_DESC(timeout, "Streaming control requests timeout");
* Driver initialization and cleanup
*/

-static const struct uvc_menu_info power_line_frequency_controls_limited[] = {
- { 1, "50 Hz" },
- { 2, "60 Hz" },
-};
-
-static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited = {
- .id = V4L2_CID_POWER_LINE_FREQUENCY,
- .entity = UVC_GUID_UVC_PROCESSING,
- .selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
- .size = 2,
- .offset = 0,
- .v4l2_type = V4L2_CTRL_TYPE_MENU,
- .data_type = UVC_CTRL_DATA_TYPE_ENUM,
- .menu_info = power_line_frequency_controls_limited,
- .menu_mask =
- GENMASK(ARRAY_SIZE(power_line_frequency_controls_limited) - 1, 0),
-};
-
static const struct uvc_device_info uvc_ctrl_power_line_limited = {
.mappings = (const struct uvc_control_mapping *[]) {
&uvc_ctrl_power_line_mapping_limited,
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index a8eec43cd860..1b2d9f327583 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -747,6 +747,7 @@ int uvc_status_start(struct uvc_device *dev, gfp_t flags);
void uvc_status_stop(struct uvc_device *dev);

/* Controls */
+extern const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited;
extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops;

int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,

--
2.39.0.314.g84b9a713c41-goog-b4-0.11.0-dev-696ae