media: uvcvideo: Add Privacy control based on EXT_GPIO

Add a new control and mapping for Privacy controls connected to
UVC_GUID_EXT_GPIO_CONTROLLERs.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index e0ab55583dd8ea63b4a35106f7718afe9e509a2e..58ad63751baa4ed3353e7460d5302e8cfcbc692f 100644 (file)
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -347,6 +347,14 @@ static const struct uvc_control_info uvc_ctrls[] = {
                                | UVC_CTRL_FLAG_RESTORE
                                | UVC_CTRL_FLAG_AUTO_UPDATE,
        },
+       {
+               .entity         = UVC_GUID_EXT_GPIO_CONTROLLER,
+               .selector       = UVC_CT_PRIVACY_CONTROL,
+               .index          = 0,
+               .size           = 1,
+               .flags          = UVC_CTRL_FLAG_GET_CUR
+                               | UVC_CTRL_FLAG_AUTO_UPDATE,
+       },
 };
 
 static const struct uvc_menu_info power_line_frequency_controls[] = {
@@ -735,6 +743,16 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
                .v4l2_type      = V4L2_CTRL_TYPE_BOOLEAN,
                .data_type      = UVC_CTRL_DATA_TYPE_BOOLEAN,
        },
+       {
+               .id             = V4L2_CID_PRIVACY,
+               .name           = "Privacy",
+               .entity         = UVC_GUID_EXT_GPIO_CONTROLLER,
+               .selector       = UVC_CT_PRIVACY_CONTROL,
+               .size           = 1,
+               .offset         = 0,
+               .v4l2_type      = V4L2_CTRL_TYPE_BOOLEAN,
+               .data_type      = UVC_CTRL_DATA_TYPE_BOOLEAN,
+       },
 };
 
 /* ------------------------------------------------------------------------