diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/radio/dsbr100.c | 88 |
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; |