diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 45 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx.h | 1 |
2 files changed, 35 insertions, 11 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index e5066d05697..daa4387a229 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -50,6 +50,8 @@ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); +static LIST_HEAD(em2820_devlist); + static unsigned int card[] = {[0 ... (EM2820_MAXBOARDS - 1)] = UNSET }; module_param_array(card, int, NULL, 0444); @@ -257,10 +259,20 @@ static void em2820_empty_framequeues(struct em2820 *dev) */ static int em2820_v4l2_open(struct inode *inode, struct file *filp) { - struct video_device *vdev = video_devdata(filp); int minor = iminor(inode); - struct em2820 *dev = (struct em2820 *)video_get_drvdata(vdev); int errCode = 0; + struct em2820 *h,*dev = NULL; + struct list_head *list; + + list_for_each(list,&em2820_devlist) { + h = list_entry(list, struct em2820, devlist); + if (h->vdev->minor == minor) { + dev = h; + } + } + + filp->private_data=dev; + em2820_videodbg("users=%d", dev->users); @@ -333,7 +345,7 @@ static void em2820_release_resources(struct em2820 *dev) em2820_info("V4L2 device /dev/video%d deregistered\n", dev->vdev->minor); - video_set_drvdata(dev->vdev, NULL); + list_del(&dev->devlist); video_unregister_device(dev->vdev); /* video_unregister_device(dev->vbi_dev); */ em2820_i2c_unregister(dev); @@ -347,9 +359,18 @@ static void em2820_release_resources(struct em2820 *dev) */ static int em2820_v4l2_close(struct inode *inode, struct file *file) { - struct video_device *vdev = video_devdata(file); - struct em2820 *dev = (struct em2820 *)video_get_drvdata(vdev); int errCode; + int minor = iminor(inode); + struct em2820 *h,*dev = NULL; + struct list_head *list; + + list_for_each(list,&em2820_devlist) { + h = list_entry(list, struct em2820, devlist); + if (h->vdev->minor == minor) { + dev = h; + } + } + em2820_videodbg("users=%d", dev->users); @@ -390,10 +411,10 @@ static ssize_t em2820_v4l2_read(struct file *filp, char __user * buf, size_t count, loff_t * f_pos) { - struct em2820 *dev = video_get_drvdata(video_devdata(filp)); struct em2820_frame_t *f, *i; unsigned long lock_flags; int ret = 0; + struct em2820 *dev = filp->private_data; if (down_interruptible(&dev->fileop_lock)) return -ERESTARTSYS; @@ -482,8 +503,8 @@ em2820_v4l2_read(struct file *filp, char __user * buf, size_t count, */ static unsigned int em2820_v4l2_poll(struct file *filp, poll_table * wait) { - struct em2820 *dev = video_get_drvdata(video_devdata(filp)); unsigned int mask = 0; + struct em2820 *dev = filp->private_data; if (down_interruptible(&dev->fileop_lock)) return POLLERR; @@ -550,10 +571,12 @@ static struct vm_operations_struct em2820_vm_ops = { */ static int em2820_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) { - struct em2820 *dev = video_get_drvdata(video_devdata(filp)); unsigned long size = vma->vm_end - vma->vm_start, start = vma->vm_start, pos, page; u32 i; + + struct em2820 *dev = filp->private_data; + if (down_interruptible(&dev->fileop_lock)) return -ERESTARTSYS; @@ -1491,8 +1514,8 @@ static int em2820_video_do_ioctl(struct inode *inode, struct file *filp, static int em2820_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { - struct em2820 *dev = video_get_drvdata(video_devdata(filp)); int ret = 0; + struct em2820 *dev = filp->private_data; if (down_interruptible(&dev->fileop_lock)) return -ERESTARTSYS; @@ -1669,7 +1692,7 @@ static int em2820_init_dev(struct em2820 **devhandle, struct usb_device *udev, dev->vdev->release = video_device_release; snprintf(dev->vdev->name, sizeof(dev->vdev->name), "%s", "em2820 video"); - video_set_drvdata(dev->vdev, dev); + list_add_tail(&dev->devlist,&em2820_devlist); /* register v4l2 device */ down(&dev->lock); @@ -1677,7 +1700,7 @@ static int em2820_init_dev(struct em2820 **devhandle, struct usb_device *udev, em2820_errdev("unable to register video device (error=%i).\n", retval); up(&dev->lock); - video_set_drvdata(dev->vdev, NULL); + list_del(&dev->devlist); video_device_release(dev->vdev); kfree(dev); return -ENODEV; diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index c48354062eb..5ff308261a7 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -211,6 +211,7 @@ struct em2820 { int model; /* index in the device_data struct */ unsigned int is_em2800; int video_inputs; /* number of video inputs */ + struct list_head devlist; unsigned int has_tuner:1; unsigned int has_msp34xx:1; unsigned int has_tda9887:1; |