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path: root/drivers/media/video/ivtv/ivtv-streams.c
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Diffstat (limited to 'drivers/media/video/ivtv/ivtv-streams.c')
-rw-r--r--drivers/media/video/ivtv/ivtv-streams.c40
1 files changed, 22 insertions, 18 deletions
diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c
index 730e85d86fc..24273fbea47 100644
--- a/drivers/media/video/ivtv/ivtv-streams.c
+++ b/drivers/media/video/ivtv/ivtv-streams.c
@@ -75,7 +75,7 @@ static const struct file_operations ivtv_v4l2_dec_fops = {
static struct {
const char *name;
int vfl_type;
- int minor_offset;
+ int num_offset;
int dma, pio;
enum v4l2_buf_type buf_type;
const struct file_operations *fops;
@@ -171,8 +171,8 @@ static void ivtv_stream_init(struct ivtv *itv, int type)
static int ivtv_prep_dev(struct ivtv *itv, int type)
{
struct ivtv_stream *s = &itv->streams[type];
- int minor_offset = ivtv_stream_info[type].minor_offset;
- int minor;
+ int num_offset = ivtv_stream_info[type].num_offset;
+ int num = itv->num + 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
@@ -188,9 +188,6 @@ static int ivtv_prep_dev(struct ivtv *itv, int type)
if (type >= IVTV_DEC_STREAM_TYPE_MPG && !(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return 0;
- /* card number + user defined offset + device offset */
- minor = itv->num + ivtv_first_minor + minor_offset;
-
/* User explicitly selected 0 buffers for these streams, so don't
create them. */
if (ivtv_stream_info[type].dma != PCI_DMA_NONE &&
@@ -211,7 +208,7 @@ static int ivtv_prep_dev(struct ivtv *itv, int type)
snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "ivtv%d %s",
itv->num, s->name);
- s->v4l2dev->minor = minor;
+ s->v4l2dev->num = num;
s->v4l2dev->parent = &itv->dev->dev;
s->v4l2dev->fops = ivtv_stream_info[type].fops;
s->v4l2dev->release = video_device_release;
@@ -250,39 +247,46 @@ 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;
+ int num;
if (s->v4l2dev == NULL)
return 0;
- minor = s->v4l2dev->minor;
+ num = s->v4l2dev->num;
+ /* card number + user defined offset + device offset */
+ if (type != IVTV_ENC_STREAM_TYPE_MPG) {
+ struct ivtv_stream *s_mpg = &itv->streams[IVTV_ENC_STREAM_TYPE_MPG];
+
+ if (s_mpg->v4l2dev)
+ num = s_mpg->v4l2dev->num + ivtv_stream_info[type].num_offset;
+ }
+
/* 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);
+ if (video_register_device(s->v4l2dev, vfl_type, num)) {
+ IVTV_ERR("Couldn't register v4l2 device for %s kernel number %d\n",
+ s->name, num);
video_device_release(s->v4l2dev);
s->v4l2dev = NULL;
return -ENOMEM;
}
+ num = s->v4l2dev->num;
switch (vfl_type) {
case VFL_TYPE_GRABBER:
IVTV_INFO("Registered device video%d for %s (%d kB)\n",
- s->v4l2dev->minor, s->name, itv->options.kilobytes[type]);
+ num, s->name, itv->options.kilobytes[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);
+ num, s->name);
break;
case VFL_TYPE_VBI:
if (itv->options.kilobytes[type])
IVTV_INFO("Registered device vbi%d for %s (%d kB)\n",
- s->v4l2dev->minor - MINOR_VFL_TYPE_VBI_MIN,
- s->name, itv->options.kilobytes[type]);
+ num, s->name, itv->options.kilobytes[type]);
else
IVTV_INFO("Registered device vbi%d for %s\n",
- s->v4l2dev->minor - MINOR_VFL_TYPE_VBI_MIN, s->name);
+ num, s->name);
break;
}
return 0;