linux-kernel - [PATCH v2 09/11] media: cx231xx: Replace s_ctrl with s_ext

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Message-Id: <20241210-queryctrl-v2-9-c0a33d69f416@chromium.org>
Date: Tue, 10 Dec 2024 09:28:53 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Mike Isely <isely@...ox.com>, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Andy Shevchenko <andy@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Hans Verkuil <hverkuil@...all.nl>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-staging@...ts.linux.dev, Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 09/11] media: cx231xx: Replace s_ctrl with s_ext_ctrls

The v4l2 ioctl framework can provide support for s_ctrl. This the last
driver implementing s_ctrl.

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/usb/cx231xx/cx231xx-417.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c
index a4a9781328c5..3c1941709ebf 100644
--- a/drivers/media/usb/cx231xx/cx231xx-417.c
+++ b/drivers/media/usb/cx231xx/cx231xx-417.c
@@ -1538,17 +1538,24 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id)
 	return 0;
 }
 
-static int vidioc_s_ctrl(struct file *file, void *priv,
-				struct v4l2_control *ctl)
+static int cx231xx_s_ext_ctrls(struct file *file, void *priv,
+			       struct v4l2_ext_controls *ctls)
 {
 	struct cx231xx *dev = video_drvdata(file);
+	struct v4l2_control ctl;
 	struct v4l2_subdev *sd;
+	unsigned int i;
 
-	dprintk(3, "enter vidioc_s_ctrl()\n");
+	dprintk(3, "enter vidioc_s_ext_ctrl()\n");
 	/* Update the A/V core */
-	v4l2_device_for_each_subdev(sd, &dev->v4l2_dev)
-		v4l2_s_ctrl(NULL, sd->ctrl_handler, ctl);
-	dprintk(3, "exit vidioc_s_ctrl()\n");
+	for (i = 0; i < ctls->count; i++) {
+		ctl.id = ctls->controls[i].id;
+		ctl.value = ctls->controls[i].value;
+		v4l2_device_for_each_subdev(sd, &dev->v4l2_dev)
+			v4l2_s_ctrl(NULL, sd->ctrl_handler, &ctl);
+		ctls->controls[i].value = ctl.value;
+	}
+	dprintk(3, "exit vidioc_s_ext_ctrl()\n");
 	return 0;
 }
 
@@ -1627,7 +1634,7 @@ static const struct v4l2_ioctl_ops mpeg_ioctl_ops = {
 	.vidioc_enum_input	 = cx231xx_enum_input,
 	.vidioc_g_input		 = cx231xx_g_input,
 	.vidioc_s_input		 = cx231xx_s_input,
-	.vidioc_s_ctrl		 = vidioc_s_ctrl,
+	.vidioc_s_ext_ctrls	 = cx231xx_s_ext_ctrls,
 	.vidioc_g_pixelaspect	 = vidioc_g_pixelaspect,
 	.vidioc_g_selection	 = vidioc_g_selection,
 	.vidioc_querycap	 = cx231xx_querycap,

-- 
2.47.0.338.g60cca15819-goog