/***************************************************************************//**
* @brief main
*******************************************************************************/
int main(void)
{
int adv7611_subdev_fd;
int adv7511_subdev_fd;
struct v4l2_dv_timings dv_timings;
struct v4l2_queryctrl ctrls[20];
struct v4l2_event_new event;
int ctrls_no;
int index;
int ret;
/* Open subdevices */
adv7611_subdev_fd = open(ADV7611_SUBDEV, O_RDWR | O_NONBLOCK, 0);
if (adv7611_subdev_fd == -1)
return -1;
adv7511_subdev_fd = open(ADV7511_SUBDEV, O_RDWR | O_NONBLOCK, 0);
if (adv7511_subdev_fd == -1)
goto err1;
/* Get the detected timings from ADV7611 */
ret = v4l2_cfg_query_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret)
goto err2;
/* Set the detected timings to both devices: ADV7611 and ADV7511 */
ret = v4l2_cfg_set_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret)
goto err2;
ret = v4l2_cfg_set_dv_timings(adv7511_subdev_fd, &dv_timings);
if (ret)
goto err2;
/* Get the configured timings */
ret = v4l2_cfg_get_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret)
goto err2;
ret = v4l2_cfg_get_dv_timings(adv7511_subdev_fd, &dv_timings);
if (ret)
goto err2;
/* This is an example of subscribing to a source change event */
/* Subscribe to V4L2_EVENT_SOURCE_CHANGE event */
ret = v4l2_cfg_subscribe_event(adv7611_subdev_fd, V4L2_EVENT_SOURCE_CHANGE, 0);
if (ret)
goto err2;
printf("Poll for \"SRC_CH_RESOLUTION\" event...\n");
while (1) {
if (!v4l2_cfg_dequeue_event(adv7611_subdev_fd, &event)) {
/* Get the detected timings from ADV7611 */
while (v4l2_cfg_query_dv_timings(adv7611_subdev_fd, &dv_timings) != 0);
/* Set the detected timings to both devices: ADV7611 and ADV7511 */
ret = v4l2_cfg_set_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret) {
goto err2;
}
ret = v4l2_cfg_set_dv_timings(adv7511_subdev_fd, &dv_timings);
if (ret) {
goto err2;
}
}
}
/* This is an example of subscribing to a control event */
/* Querry and print the ADV7511_SUBDEV's controls */
ret = v4l2_cfg_query_ctrls(adv7511_subdev_fd, ctrls, &ctrls_no);
if (ret)
goto err2;
printf("Controls found:\n");
for (index = 0; index < ctrls_no; index++) {
printf("\t%s (ID: 0x%x)\n", ctrls[index].name, ctrls[index].id);
}
/* Subscribe to "Hotplug Present" control event */
ret = v4l2_cfg_subscribe_event(adv7511_subdev_fd, V4L2_EVENT_CTRL, ctrls[1].id);
if (ret)
goto err2;
printf("Poll for \"%s\" event...\n", ctrls[1].name);
while (1) {
if (!v4l2_cfg_dequeue_event(adv7511_subdev_fd, &event)) {
if (event.u.ctrl.changes & V4L2_EVENT_CTRL_CH_VALUE) {
if (event.u.ctrl.type == V4L2_CTRL_TYPE_INTEGER64)
printf("value = 0x%llx\n", event.u.ctrl.value64);
else
printf("value = 0x%x\n", event.u.ctrl.value);
}
}
}
close(adv7611_subdev_fd);
close(adv7511_subdev_fd);
return 0;
err2:
close(adv7511_subdev_fd);
err1:
close(adv7611_subdev_fd);
return -1;
}
/***************************************************************************//**
* @brief main
*******************************************************************************/
int main(void)
{
int adv7611_subdev_fd;
int adv7511_subdev_fd;
struct v4l2_dv_timings dv_timings;
struct v4l2_queryctrl ctrls[20];
struct v4l2_event_new event;
int ctrls_no;
int index;
int ret;
/* Open subdevices */
adv7611_subdev_fd = open(ADV7611_SUBDEV, O_RDWR | O_NONBLOCK, 0);
if (adv7611_subdev_fd == -1)
return -1;
adv7511_subdev_fd = open(ADV7511_SUBDEV, O_RDWR | O_NONBLOCK, 0);
if (adv7511_subdev_fd == -1)
goto err1;
/* Get the detected timings from ADV7611 */
ret = v4l2_cfg_query_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret)
goto err2;
/* Set the detected timings to both devices: ADV7611 and ADV7511 */
ret = v4l2_cfg_set_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret)
goto err2;
ret = v4l2_cfg_set_dv_timings(adv7511_subdev_fd, &dv_timings);
if (ret)
goto err2;
/* Get the configured timings */
ret = v4l2_cfg_get_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret)
goto err2;
ret = v4l2_cfg_get_dv_timings(adv7511_subdev_fd, &dv_timings);
if (ret)
goto err2;
/*
* This is an example of subscribing to a source change event
*/
/* Subscribe to V4L2_EVENT_SOURCE_CHANGE event */
ret = v4l2_cfg_subscribe_event(adv7611_subdev_fd, V4L2_EVENT_SOURCE_CHANGE, 0);
if (ret)
goto err2;
printf("Poll for \"SRC_CH_RESOLUTION\" event...\n");
while (1) {
if (!v4l2_cfg_dequeue_event(adv7611_subdev_fd, &event)) {
printf("V4L2_EVENT_SOURCE_CHANGE event detected\n");
/* Get the detected timings from ADV7611 */
while (v4l2_cfg_query_dv_timings(adv7611_subdev_fd, &dv_timings) != 0);
/* Set the detected timings to both devices: ADV7611 and ADV7511 */
ret = v4l2_cfg_set_dv_timings(adv7611_subdev_fd, &dv_timings);
if (ret) {
goto err2;
}
ret = v4l2_cfg_set_dv_timings(adv7511_subdev_fd, &dv_timings);
if (ret) {
goto err2;
}
}
}
/*
* This is an example of subscribing to a control event
*/
/* Querry and print the ADV7511_SUBDEV's controls */
ret = v4l2_cfg_query_ctrls(adv7511_subdev_fd, ctrls, &ctrls_no);
if (ret)
goto err2;
printf("Controls found:\n");
for (index = 0; index < ctrls_no; index++) {
printf("\t%s (ID: 0x%x)\n", ctrls[index].name, ctrls[index].id);
}
/* Subscribe to "Hotplug Present" control event */
ret = v4l2_cfg_subscribe_event(adv7511_subdev_fd, V4L2_EVENT_CTRL, ctrls[1].id);
if (ret)
goto err2;
printf("Poll for \"%s\" event...\n", ctrls[1].name);
while (1) {
if (!v4l2_cfg_dequeue_event(adv7511_subdev_fd, &event)) {
if (event.u.ctrl.changes & V4L2_EVENT_CTRL_CH_VALUE) {
if (event.u.ctrl.type == V4L2_CTRL_TYPE_INTEGER64)
printf("value = 0x%llx\n", event.u.ctrl.value64);
else
printf("value = 0x%x\n", event.u.ctrl.value);
}
}
}
/*
* This is an example of setting controls' values
*/
/* Querry and print the ADV7611_SUBDEV's controls */
ret = v4l2_cfg_query_ctrls(adv7611_subdev_fd, ctrls, &ctrls_no);
if (ret)
goto err2;
printf("Controls found:\n");
for (index = 0; index < ctrls_no; index++) {
printf("\t%s (ID: 0x%x)\n", ctrls[index].name, ctrls[index].id);
}
/* Disable free running mode */
ret = v4l2_cfg_set_control_value(adv7611_subdev_fd,
V4L2_CFG_CID_ADV7611_FREE_RUN_MODE, 0);
if (ret)
goto err2;
/* Enable Automatic free running mode */
ret = v4l2_cfg_set_control_value(adv7611_subdev_fd,
V4L2_CFG_CID_ADV7611_FREE_RUN_MODE, 2);
if (ret)
goto err2;
/* Force free running mode */
ret = v4l2_cfg_set_control_value(adv7611_subdev_fd,
V4L2_CFG_CID_ADV7611_FREE_RUN_MODE, 1);
if (ret)
goto err2;
/* Specify your own color for free running mode instead of using the
default blue color */
ret = v4l2_cfg_set_control_value(adv7611_subdev_fd,
V4L2_CFG_CID_ADV7611_FREE_RUN_COLOR_MANUAL, 1);
if (ret)
goto err2;
/* Custom free running color can be set in GRB 24-bit format */
/* Green */
ret = v4l2_cfg_set_control_value(adv7611_subdev_fd,
V4L2_CFG_CID_ADV7611_FREE_RUN_COLOR, 0xFF0000);
if (ret)
goto err2;
/* Red */
ret = v4l2_cfg_set_control_value(adv7611_subdev_fd,
V4L2_CFG_CID_ADV7611_FREE_RUN_COLOR, 0x00FF00);
if (ret)
goto err2;
/* Blue */
ret = v4l2_cfg_set_control_value(adv7611_subdev_fd,
V4L2_CFG_CID_ADV7611_FREE_RUN_COLOR, 0x0000FF);
if (ret)
goto err2;
close(adv7611_subdev_fd);
close(adv7511_subdev_fd);
return 0;
err2:
close(adv7511_subdev_fd);
err1:
close(adv7611_subdev_fd);
return -1;
}