V4L/DVB (11436): radio-mr800: convert to to v4l2_device
radio-mr800: convert to to v4l2_device. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -43,6 +43,7 @@
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* Douglas Schilling Landgraf <dougsland@gmail.com> and
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* David Ellingsworth <david@identd.dyndns.org>
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* for discussion, help and support.
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* Version 0.11: Converted to v4l2_device.
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*
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* Many things to do:
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* - Correct power managment of device (suspend & resume)
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@ -59,7 +60,7 @@
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/usb.h>
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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@ -67,8 +68,8 @@
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/* driver and module definitions */
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#define DRIVER_AUTHOR "Alexey Klimov <klimov.linux@gmail.com>"
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#define DRIVER_DESC "AverMedia MR 800 USB FM radio driver"
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#define DRIVER_VERSION "0.10"
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#define RADIO_VERSION KERNEL_VERSION(0, 1, 0)
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#define DRIVER_VERSION "0.11"
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#define RADIO_VERSION KERNEL_VERSION(0, 1, 1)
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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@ -113,38 +114,6 @@ static int radio_nr = -1;
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module_param(radio_nr, int, 0);
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MODULE_PARM_DESC(radio_nr, "Radio Nr");
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static struct v4l2_queryctrl radio_qctrl[] = {
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{
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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},
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/* HINT: the disabled controls are only here to satify kradio and such apps */
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{ .id = V4L2_CID_AUDIO_VOLUME,
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.flags = V4L2_CTRL_FLAG_DISABLED,
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},
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{
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.id = V4L2_CID_AUDIO_BALANCE,
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.flags = V4L2_CTRL_FLAG_DISABLED,
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},
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{
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.id = V4L2_CID_AUDIO_BASS,
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.flags = V4L2_CTRL_FLAG_DISABLED,
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},
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{
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.id = V4L2_CID_AUDIO_TREBLE,
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.flags = V4L2_CTRL_FLAG_DISABLED,
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},
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{
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.id = V4L2_CID_AUDIO_LOUDNESS,
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.flags = V4L2_CTRL_FLAG_DISABLED,
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},
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};
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static int usb_amradio_probe(struct usb_interface *intf,
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const struct usb_device_id *id);
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static void usb_amradio_disconnect(struct usb_interface *intf);
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@ -159,6 +128,7 @@ struct amradio_device {
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/* reference to USB and video device */
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struct usb_device *usbdev;
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struct video_device *videodev;
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struct v4l2_device v4l2_dev;
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unsigned char *buffer;
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struct mutex lock; /* buffer locking */
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@ -329,6 +299,7 @@ static void usb_amradio_disconnect(struct usb_interface *intf)
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usb_set_intfdata(intf, NULL);
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video_unregister_device(radio->videodev);
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v4l2_device_disconnect(&radio->v4l2_dev);
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}
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/* vidioc_querycap - query device capabilities */
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@ -463,14 +434,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
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static int vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
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if (qc->id && qc->id == radio_qctrl[i].id) {
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memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
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return 0;
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}
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switch (qc->id) {
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case V4L2_CID_AUDIO_MUTE:
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return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
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}
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return -EINVAL;
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}
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@ -671,34 +639,29 @@ static const struct v4l2_ioctl_ops usb_amradio_ioctl_ops = {
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.vidioc_s_input = vidioc_s_input,
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};
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static void usb_amradio_device_release(struct video_device *videodev)
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static void usb_amradio_video_device_release(struct video_device *videodev)
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{
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struct amradio_device *radio = video_get_drvdata(videodev);
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/* we call v4l to free radio->videodev */
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video_device_release(videodev);
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v4l2_device_unregister(&radio->v4l2_dev);
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/* free rest memory */
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kfree(radio->buffer);
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kfree(radio);
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}
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/* V4L2 interface */
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static struct video_device amradio_videodev_template = {
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.name = "AverMedia MR 800 USB FM Radio",
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.fops = &usb_amradio_fops,
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.ioctl_ops = &usb_amradio_ioctl_ops,
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.release = usb_amradio_device_release,
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};
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/* check if the device is present and register with v4l and usb if it is */
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static int usb_amradio_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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struct amradio_device *radio;
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struct v4l2_device *v4l2_dev;
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int retval;
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radio = kmalloc(sizeof(struct amradio_device), GFP_KERNEL);
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radio = kzalloc(sizeof(struct amradio_device), GFP_KERNEL);
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if (!radio) {
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dev_err(&intf->dev, "kmalloc for amradio_device failed\n");
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@ -713,6 +676,15 @@ static int usb_amradio_probe(struct usb_interface *intf,
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return -ENOMEM;
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}
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v4l2_dev = &radio->v4l2_dev;
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retval = v4l2_device_register(&intf->dev, v4l2_dev);
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if (retval < 0) {
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dev_err(&intf->dev, "couldn't register v4l2_device\n");
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kfree(radio->buffer);
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kfree(radio);
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return retval;
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}
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radio->videodev = video_device_alloc();
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if (!radio->videodev) {
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@ -722,8 +694,11 @@ static int usb_amradio_probe(struct usb_interface *intf,
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return -ENOMEM;
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}
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memcpy(radio->videodev, &amradio_videodev_template,
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sizeof(amradio_videodev_template));
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strlcpy(radio->videodev->name, v4l2_dev->name, sizeof(radio->videodev->name));
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radio->videodev->v4l2_dev = v4l2_dev;
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radio->videodev->fops = &usb_amradio_fops;
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radio->videodev->ioctl_ops = &usb_amradio_ioctl_ops;
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radio->videodev->release = usb_amradio_video_device_release;
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radio->removed = 0;
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radio->users = 0;
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@ -734,10 +709,12 @@ static int usb_amradio_probe(struct usb_interface *intf,
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mutex_init(&radio->lock);
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video_set_drvdata(radio->videodev, radio);
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retval = video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr);
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if (retval < 0) {
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dev_err(&intf->dev, "could not register video device\n");
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video_device_release(radio->videodev);
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v4l2_device_unregister(v4l2_dev);
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kfree(radio->buffer);
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kfree(radio);
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return -EIO;
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