V4L/DVB (11435): dsbr100 radio: convert to to v4l2_device

dsbr100: convert to v4l2_device.

Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 36 insertions, 52 deletions

diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index cc54ed4..6135762 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -33,6 +33,9 @@
 
  History:
 
+ Version 0.45:
+	Converted to v4l2_device.
+
  Version 0.44:
 	Add suspend/resume functions, fix unplug of device,
 	a lot of cleanups and fixes by Alexey Klimov <klimov.linux@gmail.com>
@@ -88,7 +91,7 @@
 #include <linux/slab.h>
 #include <linux/input.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 #include <linux/usb.h>
 
@@ -97,39 +100,8 @@
  */
 #include <linux/version.h>	/* for KERNEL_VERSION MACRO	*/
 
-#define DRIVER_VERSION "v0.44"
-#define RADIO_VERSION KERNEL_VERSION(0, 4, 4)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},
-/* HINT: the disabled controls are only here to satify kradio and such apps */
-	{       .id             = V4L2_CID_AUDIO_VOLUME,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_BALANCE,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_BASS,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_TREBLE,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_LOUDNESS,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-};
+#define DRIVER_VERSION "v0.45"
+#define RADIO_VERSION KERNEL_VERSION(0, 4, 5)
 
 #define DRIVER_AUTHOR "Markus Demleitner <msdemlei@tucana.harvard.edu>"
 #define DRIVER_DESC "D-Link DSB-R100 USB FM radio driver"
@@ -167,6 +139,8 @@ module_param(radio_nr, int, 0);
 struct dsbr100_device {
 	struct usb_device *usbdev;
 	struct video_device videodev;
+	struct v4l2_device v4l2_dev;
+
 	u8 *transfer_buffer;
 	struct mutex lock;	/* buffer locking */
 	int curfreq;
@@ -384,6 +358,7 @@ static void usb_dsbr100_disconnect(struct usb_interface *intf)
 	mutex_unlock(&radio->lock);
 
 	video_unregister_device(&radio->videodev);
+	v4l2_device_disconnect(&radio->v4l2_dev);
 }
 
 
@@ -479,14 +454,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_queryctrl(struct file *file, void *priv,
 				struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
 	}
+
 	return -EINVAL;
 }
 
@@ -656,6 +628,7 @@ static void usb_dsbr100_video_device_release(struct video_device *videodev)
 {
 	struct dsbr100_device *radio = videodev_to_radio(videodev);
 
+	v4l2_device_unregister(&radio->v4l2_dev);
 	kfree(radio->transfer_buffer);
 	kfree(radio);
 }
@@ -683,22 +656,15 @@ static const struct v4l2_ioctl_ops usb_dsbr100_ioctl_ops = {
 	.vidioc_s_input     = vidioc_s_input,
 };
 
-/* V4L2 interface */
-static struct video_device dsbr100_videodev_data = {
-	.name		= "D-Link DSB-R 100",
-	.fops		= &usb_dsbr100_fops,
-	.ioctl_ops 	= &usb_dsbr100_ioctl_ops,
-	.release	= usb_dsbr100_video_device_release,
-};
-
 /* check if the device is present and register with v4l and usb if it is */
 static int usb_dsbr100_probe(struct usb_interface *intf,
 				const struct usb_device_id *id)
 {
 	struct dsbr100_device *radio;
+	struct v4l2_device *v4l2_dev;
 	int retval;
 
-	radio = kmalloc(sizeof(struct dsbr100_device), GFP_KERNEL);
+	radio = kzalloc(sizeof(struct dsbr100_device), GFP_KERNEL);
 
 	if (!radio)
 		return -ENOMEM;
@@ -710,17 +676,35 @@ static int usb_dsbr100_probe(struct usb_interface *intf,
 		return -ENOMEM;
 	}
 
+	v4l2_dev = &radio->v4l2_dev;
+
+	retval = v4l2_device_register(&intf->dev, v4l2_dev);
+	if (retval < 0) {
+		v4l2_err(v4l2_dev, "couldn't register v4l2_device\n");
+		kfree(radio->transfer_buffer);
+		kfree(radio);
+		return retval;
+	}
+
+	strlcpy(radio->videodev.name, v4l2_dev->name, sizeof(radio->videodev.name));
+	radio->videodev.v4l2_dev = v4l2_dev;
+	radio->videodev.fops = &usb_dsbr100_fops;
+	radio->videodev.ioctl_ops = &usb_dsbr100_ioctl_ops;
+	radio->videodev.release = usb_dsbr100_video_device_release;
+
 	mutex_init(&radio->lock);
-	radio->videodev = dsbr100_videodev_data;
 
 	radio->removed = 0;
 	radio->users = 0;
 	radio->usbdev = interface_to_usbdev(intf);
 	radio->curfreq = FREQ_MIN * FREQ_MUL;
+
 	video_set_drvdata(&radio->videodev, radio);
+
 	retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr);
 	if (retval < 0) {
-		dev_err(&intf->dev, "couldn't register video device\n");
+		v4l2_err(v4l2_dev, "couldn't register video device\n");
+		v4l2_device_unregister(v4l2_dev);
 		kfree(radio->transfer_buffer);
 		kfree(radio);
 		return -EIO;