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V4L/DVB (7599): em28xx-dvb: videobuf callbacks are waiting for em28xx_fh

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Thanks to Devin Heitmueller <devin.heitmueller@gmail.com> for pointing
this issue.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2008-04-17 21:38:38 -03:00
parent bdfbf95203
commit 52284c3e47
2 changed files with 20 additions and 11 deletions
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8
drivers/media/video/em28xx/em28xx-dvb.c
View File

@ -45,6 +45,7 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
struct em28xx_fh *fh = vq->priv_data;
struct em28xx *dev = fh->dev;
/* FIXME: The better would be to allocate a smaller buffer */
*size = 16 * fh->dev->width * fh->dev->height >> 3;
if (0 == *count)
*count = EM28XX_DEF_BUF;
@ -109,11 +110,16 @@ static int dvb_init(struct em28xx *dev)
dev->qops->buf_setup = buffer_setup;
/* FIXME: Do we need more initialization here? */
memset(&dev->dvb_fh, 0, sizeof (dev->dvb_fh));
dev->dvb_fh.dev = dev;
dev->dvb_fh.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
videobuf_queue_vmalloc_init(&dev->dvb.dvbq, dev->qops,
&dev->udev->dev, &dev->slock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_ALTERNATE,
sizeof(struct em28xx_buffer), dev);
sizeof(struct em28xx_buffer), &dev->dvb_fh);
/* init frontend */
switch (dev->model) {

23
drivers/media/video/em28xx/em28xx.h
View File

@ -304,6 +304,18 @@ struct em28xx_audio {
spinlock_t slock;
};
struct em28xx;
struct em28xx_fh {
struct em28xx *dev;
unsigned int stream_on:1; /* Locks streams */
int radio;
struct videobuf_queue vb_vidq;
enum v4l2_buf_type type;
};
/* main device struct */
struct em28xx {
/* generic device properties */
@ -401,19 +413,10 @@ struct em28xx {
#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
struct videobuf_dvb dvb;
struct videobuf_queue_ops *qops;
struct em28xx_fh dvb_fh;
#endif
};
struct em28xx_fh {
struct em28xx *dev;
unsigned int stream_on:1; /* Locks streams */
int radio;
struct videobuf_queue vb_vidq;
enum v4l2_buf_type type;
};
struct em28xx_ops {
struct list_head next;
char *name;