static int ivtv_prep_dev(struct ivtv *itv, int type)
{
struct ivtv_stream *s = &itv->streams[type];
int num_offset = ivtv_stream_info[type].num_offset;
int num = itv->instance + ivtv_first_minor + num_offset;
/* These four fields are always initialized. If vdev == NULL, then
this stream is not in use. In that case no other fields but these
four can be used. */
s->vdev = NULL;
s->itv = itv;
s->type = type;
s->name = ivtv_stream_info[type].name;
/* Check whether the radio is supported */
if (type == IVTV_ENC_STREAM_TYPE_RAD && !(itv->v4l2_cap & V4L2_CAP_RADIO))
return 0;
if (type >= IVTV_DEC_STREAM_TYPE_MPG && !(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return 0;
/* User explicitly selected 0 buffers for these streams, so don't
create them. */
if (ivtv_stream_info[type].dma != PCI_DMA_NONE &&
itv->options.kilobytes[type] == 0) {
IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name);
return 0;
}
ivtv_stream_init(itv, type);
/* allocate and initialize the v4l2 video device structure */
s->vdev = video_device_alloc();
if (s->vdev == NULL) {
IVTV_ERR("Couldn't allocate v4l2 video_device for %s\n", s->name);
return -ENOMEM;
}
snprintf(s->vdev->name, sizeof(s->vdev->name), "%s %s",
itv->v4l2_dev.name, s->name);
s->vdev->num = num;
s->vdev->v4l2_dev = &itv->v4l2_dev;
s->vdev->fops = ivtv_stream_info[type].fops;
s->vdev->ctrl_handler = itv->v4l2_dev.ctrl_handler;
s->vdev->release = video_device_release;
s->vdev->tvnorms = V4L2_STD_ALL;
s->vdev->lock = &itv->serialize_lock;
/* Locking in file operations other than ioctl should be done
by the driver, not the V4L2 core.
This driver needs auditing so that this flag can be removed. */
set_bit(V4L2_FL_LOCK_ALL_FOPS, &s->vdev->flags);
set_bit(V4L2_FL_USE_FH_PRIO, &s->vdev->flags);
ivtv_set_funcs(s->vdev);
return 0;
}
static int ivtv_prep_dev(struct ivtv *itv, int type)
{
struct ivtv_stream *s = &itv->streams[type];
int num_offset = ivtv_stream_info[type].num_offset;
int num = itv->instance + ivtv_first_minor + num_offset;
/*
*/
s->vdev = NULL;
s->itv = itv;
s->type = type;
s->name = ivtv_stream_info[type].name;
/* */
if (type == IVTV_ENC_STREAM_TYPE_RAD && !(itv->v4l2_cap & V4L2_CAP_RADIO))
return 0;
if (type >= IVTV_DEC_STREAM_TYPE_MPG && !(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return 0;
/*
*/
if (ivtv_stream_info[type].dma != PCI_DMA_NONE &&
itv->options.kilobytes[type] == 0) {
IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name);
return 0;
}
ivtv_stream_init(itv, type);
/* */
s->vdev = video_device_alloc();
if (s->vdev == NULL) {
IVTV_ERR("Couldn't allocate v4l2 video_device for %s\n", s->name);
return -ENOMEM;
}
snprintf(s->vdev->name, sizeof(s->vdev->name), "%s %s",
itv->v4l2_dev.name, s->name);
s->vdev->num = num;
s->vdev->v4l2_dev = &itv->v4l2_dev;
s->vdev->fops = ivtv_stream_info[type].fops;
s->vdev->ctrl_handler = itv->v4l2_dev.ctrl_handler;
s->vdev->release = video_device_release;
s->vdev->tvnorms = V4L2_STD_ALL;
s->vdev->lock = &itv->serialize_lock;
set_bit(V4L2_FL_USE_FH_PRIO, &s->vdev->flags);
ivtv_set_funcs(s->vdev);
return 0;
}
static int ivtv_prep_dev(struct ivtv *itv, int type)
{
struct ivtv_stream *s = &itv->streams[type];
int num_offset = ivtv_stream_info[type].num_offset;
int num = itv->instance + ivtv_first_minor + num_offset;
/* These four fields are always initialized. If v4l2dev == NULL, then
this stream is not in use. In that case no other fields but these
four can be used. */
s->v4l2dev = NULL;
s->itv = itv;
s->type = type;
s->name = ivtv_stream_info[type].name;
/* Check whether the radio is supported */
if (type == IVTV_ENC_STREAM_TYPE_RAD && !(itv->v4l2_cap & V4L2_CAP_RADIO))
return 0;
if (type >= IVTV_DEC_STREAM_TYPE_MPG && !(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return 0;
/* User explicitly selected 0 buffers for these streams, so don't
create them. */
if (ivtv_stream_info[type].dma != PCI_DMA_NONE &&
itv->options.kilobytes[type] == 0) {
IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name);
return 0;
}
ivtv_stream_init(itv, type);
/* allocate and initialize the v4l2 video device structure */
s->v4l2dev = video_device_alloc();
if (s->v4l2dev == NULL) {
IVTV_ERR("Couldn't allocate v4l2 video_device for %s\n", s->name);
return -ENOMEM;
}
snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "%s %s",
itv->device.name, s->name);
s->v4l2dev->num = num;
s->v4l2dev->v4l2_dev = &itv->device;
s->v4l2dev->fops = ivtv_stream_info[type].fops;
s->v4l2dev->release = video_device_release;
s->v4l2dev->tvnorms = V4L2_STD_ALL;
ivtv_set_funcs(s->v4l2dev);
return 0;
}
static int ivtv_reg_dev(struct ivtv *itv, int type)
{
struct ivtv_stream *s = &itv->streams[type];
int vfl_type = ivtv_stream_info[type].vfl_type;
int minor_offset = ivtv_stream_info[type].minor_offset;
int minor;
/* These four fields are always initialized. If v4l2dev == NULL, then
this stream is not in use. In that case no other fields but these
four can be used. */
s->v4l2dev = NULL;
s->itv = itv;
s->type = type;
s->name = ivtv_stream_info[type].name;
/* Check whether the radio is supported */
if (type == IVTV_ENC_STREAM_TYPE_RAD && !(itv->v4l2_cap & V4L2_CAP_RADIO))
return 0;
if (type >= IVTV_DEC_STREAM_TYPE_MPG && !(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return 0;
if (minor_offset >= 0)
/* card number + user defined offset + device offset */
minor = itv->num + ivtv_first_minor + minor_offset;
else
minor = -1;
/* User explicitly selected 0 buffers for these streams, so don't
create them. */
if (minor >= 0 && ivtv_stream_info[type].dma != PCI_DMA_NONE &&
itv->options.megabytes[type] == 0) {
IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name);
return 0;
}
ivtv_stream_init(itv, type);
/* allocate and initialize the v4l2 video device structure */
s->v4l2dev = video_device_alloc();
if (s->v4l2dev == NULL) {
IVTV_ERR("Couldn't allocate v4l2 video_device for %s\n", s->name);
return -ENOMEM;
}
s->v4l2dev->type = VID_TYPE_CAPTURE | VID_TYPE_TUNER | VID_TYPE_TELETEXT |
VID_TYPE_CLIPPING | VID_TYPE_SCALES | VID_TYPE_MPEG_ENCODER;
if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
s->v4l2dev->type |= VID_TYPE_MPEG_DECODER;
}
snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "ivtv%d %s",
itv->num, s->name);
s->v4l2dev->minor = minor;
s->v4l2dev->dev = &itv->dev->dev;
s->v4l2dev->fops = ivtv_stream_info[type].fops;
s->v4l2dev->release = video_device_release;
if (minor >= 0) {
/* Register device. First try the desired minor, then any free one. */
if (video_register_device(s->v4l2dev, vfl_type, minor) &&
video_register_device(s->v4l2dev, vfl_type, -1)) {
IVTV_ERR("Couldn't register v4l2 device for %s minor %d\n",
s->name, minor);
video_device_release(s->v4l2dev);
s->v4l2dev = NULL;
return -ENOMEM;
}
}
else {
/* Don't register a 'hidden' stream (OSD) */
IVTV_INFO("Created framebuffer stream for %s\n", s->name);
return 0;
}
switch (vfl_type) {
case VFL_TYPE_GRABBER:
IVTV_INFO("Registered device video%d for %s (%d MB)\n",
s->v4l2dev->minor, s->name, itv->options.megabytes[type]);
break;
case VFL_TYPE_RADIO:
IVTV_INFO("Registered device radio%d for %s\n",
s->v4l2dev->minor - MINOR_VFL_TYPE_RADIO_MIN, s->name);
break;
case VFL_TYPE_VBI:
if (itv->options.megabytes[type])
IVTV_INFO("Registered device vbi%d for %s (%d MB)\n",
s->v4l2dev->minor - MINOR_VFL_TYPE_VBI_MIN,
s->name, itv->options.megabytes[type]);
else
IVTV_INFO("Registered device vbi%d for %s\n",
s->v4l2dev->minor - MINOR_VFL_TYPE_VBI_MIN, s->name);
break;
}
return 0;
}