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[media] tm6000: rework init code

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Rework device init part. Move common code part to a function.
Usefull for register multiple devices like video, radio, vbi etc.

Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dmitri Belimov 2011-01-13 00:46:07 -03:00 committed by Mauro Carvalho Chehab
parent 2400982a2e
commit 3c61be446a
1 changed files with 37 additions and 11 deletions
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48
drivers/staging/tm6000/tm6000-video.c
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@ -1450,29 +1450,55 @@ static struct video_device tm6000_template = {
* ------------------------------------------------------------------
*/
int tm6000_v4l2_register(struct tm6000_core *dev)
static struct video_device *vdev_init(struct tm6000_core *dev,
const struct video_device
*template, const char *type_name)
{
int ret = -1;
struct video_device *vfd;
vfd = video_device_alloc();
if(!vfd) {
if (NULL == vfd)
return NULL;
*vfd = *template;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->release = video_device_release;
vfd->debug = tm6000_debug;
vfd->lock = &dev->lock;
snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
video_set_drvdata(vfd, dev);
return vfd;
}
int tm6000_v4l2_register(struct tm6000_core *dev)
{
int ret = -1;
dev->vfd = vdev_init(dev, &tm6000_template, "video");
if (!dev->vfd) {
printk(KERN_INFO "%s: can't register video device\n",
dev->name);
return -ENOMEM;
}
dev->vfd = vfd;
/* init video dma queues */
INIT_LIST_HEAD(&dev->vidq.active);
INIT_LIST_HEAD(&dev->vidq.queued);
memcpy(dev->vfd, &tm6000_template, sizeof(*(dev->vfd)));
dev->vfd->debug = tm6000_debug;
dev->vfd->lock = &dev->lock;
vfd->v4l2_dev = &dev->v4l2_dev;
video_set_drvdata(vfd, dev);
ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
if (ret < 0) {
printk(KERN_INFO "%s: can't register video device\n",
dev->name);
return ret;
}
printk(KERN_INFO "%s: registered device %s\n",
dev->name, video_device_node_name(dev->vfd));
printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
return ret;
}