diff options
Diffstat (limited to 'drivers/media/pci/cx18/cx18-fileops.c')
| -rw-r--r-- | drivers/media/pci/cx18/cx18-fileops.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/media/pci/cx18/cx18-fileops.c b/drivers/media/pci/cx18/cx18-fileops.c index d245445eea2d..df837408efd5 100644 --- a/drivers/media/pci/cx18/cx18-fileops.c +++ b/drivers/media/pci/cx18/cx18-fileops.c @@ -34,6 +34,7 @@ #include "cx18-controls.h" #include "cx18-ioctl.h" #include "cx18-cards.h" +#include <media/v4l2-event.h> /* This function tries to claim the stream for a specific file descriptor. If no one else is using this stream then the stream is claimed and @@ -609,13 +610,16 @@ ssize_t cx18_v4l2_read(struct file *filp, char __user *buf, size_t count, unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait) { + unsigned long req_events = poll_requested_events(wait); struct cx18_open_id *id = file2id(filp); struct cx18 *cx = id->cx; struct cx18_stream *s = &cx->streams[id->type]; int eof = test_bit(CX18_F_S_STREAMOFF, &s->s_flags); + unsigned res = 0; /* Start a capture if there is none */ - if (!eof && !test_bit(CX18_F_S_STREAMING, &s->s_flags)) { + if (!eof && !test_bit(CX18_F_S_STREAMING, &s->s_flags) && + (req_events & (POLLIN | POLLRDNORM))) { int rc; mutex_lock(&cx->serialize_lock); @@ -632,21 +636,26 @@ unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait) if ((s->vb_type == V4L2_BUF_TYPE_VIDEO_CAPTURE) && (id->type == CX18_ENC_STREAM_TYPE_YUV)) { int videobuf_poll = videobuf_poll_stream(filp, &s->vbuf_q, wait); + + if (v4l2_event_pending(&id->fh)) + res |= POLLPRI; if (eof && videobuf_poll == POLLERR) - return POLLHUP; - else - return videobuf_poll; + return res | POLLHUP; + return res | videobuf_poll; } /* add stream's waitq to the poll list */ CX18_DEBUG_HI_FILE("Encoder poll\n"); - poll_wait(filp, &s->waitq, wait); + if (v4l2_event_pending(&id->fh)) + res |= POLLPRI; + else + poll_wait(filp, &s->waitq, wait); if (atomic_read(&s->q_full.depth)) - return POLLIN | POLLRDNORM; + return res | POLLIN | POLLRDNORM; if (eof) - return POLLHUP; - return 0; + return res | POLLHUP; + return res; } int cx18_v4l2_mmap(struct file *file, struct vm_area_struct *vma) |