static void *mm_camera_poll_fn(mm_camera_poll_thread_t *poll_cb)
{
int rc = 0, i;
struct pollfd fds[MM_CAMERA_CH_STREAM_MAX+1];
int timeoutms;
CDBG("%s: poll type = %d, num_fd = %d\n",
__func__, poll_cb->data.poll_type, poll_cb->data.num_fds);
do {
for(i = 0; i < poll_cb->data.num_fds; i++) {
fds[i].fd = poll_cb->data.poll_fd[i];
fds[i].events = POLLIN|POLLRDNORM|POLLPRI;
}
timeoutms = poll_cb->data.timeoutms;
rc = poll(fds, poll_cb->data.num_fds, timeoutms);
if(rc > 0) {
if((fds[0].revents & POLLIN) && (fds[0].revents & POLLRDNORM))
mm_camera_poll_proc_pipe(poll_cb);
else
mm_camera_poll_proc_msm(poll_cb, &fds[1]);
} else {
/* in error case sleep 10 us and then continue. hard coded here */
usleep(10);
continue;
}
} while (poll_cb->data.state == MM_CAMERA_POLL_TASK_STATE_POLL);
return NULL;
}
/*===========================================================================
* FUNCTION : mm_camera_poll_fn
*
* DESCRIPTION: polling thread routine
*
* PARAMETERS :
* @poll_cb : ptr to poll thread object
*
* RETURN : none
*==========================================================================*/
static void *mm_camera_poll_fn(mm_camera_poll_thread_t *poll_cb)
{
int rc = 0, i;
if (NULL == poll_cb) {
CDBG_ERROR("%s: poll_cb is NULL!\n", __func__);
return NULL;
}
CDBG("%s: poll type = %d, num_fd = %d poll_cb = %p\n",
__func__, poll_cb->poll_type, poll_cb->num_fds,poll_cb);
do {
for(i = 0; i < poll_cb->num_fds; i++) {
poll_cb->poll_fds[i].events = POLLIN|POLLRDNORM|POLLPRI;
}
rc = poll(poll_cb->poll_fds, poll_cb->num_fds, poll_cb->timeoutms);
if(rc > 0) {
if ((poll_cb->poll_fds[0].revents & POLLIN) &&
(poll_cb->poll_fds[0].revents & POLLRDNORM)) {
/* if we have data on pipe, we only process pipe in this iteration */
CDBG("%s: cmd received on pipe\n", __func__);
mm_camera_poll_proc_pipe(poll_cb);
} else {
for(i=1; i<poll_cb->num_fds; i++) {
/* Checking for ctrl events */
if ((poll_cb->poll_type == MM_CAMERA_POLL_TYPE_EVT) &&
(poll_cb->poll_fds[i].revents & POLLPRI)) {
CDBG("%s: mm_camera_evt_notify\n", __func__);
if (NULL != poll_cb->poll_entries[i-1].notify_cb) {
poll_cb->poll_entries[i-1].notify_cb(poll_cb->poll_entries[i-1].user_data);
}
}
if ((MM_CAMERA_POLL_TYPE_DATA == poll_cb->poll_type) &&
(poll_cb->poll_fds[i].revents & POLLIN) &&
(poll_cb->poll_fds[i].revents & POLLRDNORM)) {
CDBG("%s: mm_stream_data_notify\n", __func__);
if (NULL != poll_cb->poll_entries[i-1].notify_cb) {
poll_cb->poll_entries[i-1].notify_cb(poll_cb->poll_entries[i-1].user_data);
}
}
}
}
} else {
/* in error case sleep 10 us and then continue. hard coded here */
usleep(10);
continue;
}
} while ((poll_cb != NULL) && (poll_cb->state == MM_CAMERA_POLL_TASK_STATE_POLL));
return NULL;
}
