static void solo_thread_try(struct solo_filehandle *fh)
{
struct videobuf_buffer *vb;
unsigned int cur_write;
for (;;) {
spin_lock(&fh->slock);
if (list_empty(&fh->vidq_active))
break;
vb = list_first_entry(&fh->vidq_active, struct videobuf_buffer,
queue);
if (!waitqueue_active(&vb->done))
break;
cur_write = SOLO_VI_STATUS0_PAGE(solo_reg_read(fh->solo_dev,
SOLO_VI_STATUS0));
if (cur_write == fh->old_write)
break;
fh->old_write = cur_write;
list_del(&vb->queue);
spin_unlock(&fh->slock);
solo_fillbuf(fh, vb);
}
assert_spin_locked(&fh->slock);
spin_unlock(&fh->slock);
}
static void solo_thread_try(struct solo_dev *solo_dev)
{
struct solo_vb2_buf *vb;
/* Only "break" from this loop if slock is held, otherwise
* just return. */
for (;;) {
unsigned int cur_write;
cur_write = SOLO_VI_STATUS0_PAGE(
solo_reg_read(solo_dev, SOLO_VI_STATUS0));
if (cur_write == solo_dev->old_write)
return;
spin_lock(&solo_dev->slock);
if (list_empty(&solo_dev->vidq_active))
break;
vb = list_first_entry(&solo_dev->vidq_active, struct solo_vb2_buf,
list);
solo_dev->old_write = cur_write;
list_del(&vb->list);
spin_unlock(&solo_dev->slock);
solo_fillbuf(solo_dev, &vb->vb);
}
assert_spin_locked(&solo_dev->slock);
spin_unlock(&solo_dev->slock);
}
static void solo_thread_try(struct solo_filehandle *fh)
{
struct videobuf_buffer *vb;
/* Only "break" from this loop if slock is held, otherwise
* just return. */
for (;;) {
unsigned int cur_write;
cur_write = SOLO_VI_STATUS0_PAGE(
solo_reg_read(fh->solo_dev, SOLO_VI_STATUS0));
if (cur_write == fh->old_write)
return;
spin_lock(&fh->slock);
if (list_empty(&fh->vidq_active))
break;
vb = list_first_entry(&fh->vidq_active, struct videobuf_buffer,
queue);
if (!waitqueue_active(&vb->done))
break;
fh->old_write = cur_write;
list_del(&vb->queue);
vb->state = VIDEOBUF_ACTIVE;
spin_unlock(&fh->slock);
solo_fillbuf(fh, vb);
}
assert_spin_locked(&fh->slock);
spin_unlock(&fh->slock);
}