/*
* si470x_fops_poll - poll RDS data
*/
static unsigned int si470x_fops_poll(struct file *file,
struct poll_table_struct *pts)
{
struct si470x_device *radio = video_drvdata(file);
unsigned long req_events = poll_requested_events(pts);
int retval = v4l2_ctrl_poll(file, pts);
if (req_events & (POLLIN | POLLRDNORM)) {
/* switch on rds reception */
if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
si470x_rds_on(radio);
poll_wait(file, &radio->read_queue, pts);
if (radio->rd_index != radio->wr_index)
retval |= POLLIN | POLLRDNORM;
}
return retval;
}
unsigned int vivid_radio_rx_poll(struct file *file, struct poll_table_struct *wait)
{
return POLLIN | POLLRDNORM | v4l2_ctrl_poll(file, wait);
}
unsigned int vivid_radio_tx_poll(struct file *file, struct poll_table_struct *wait)
{
return POLLOUT | POLLWRNORM | v4l2_ctrl_poll(file, wait);
}
