static bool obs_init(void)
{
obs = bmalloc(sizeof(struct obs_subsystem));
memset(obs, 0, sizeof(struct obs_subsystem));
obs_init_data();
if (!obs_init_handlers())
return false;
obs->media = media_open();
if (!obs->media)
return false;
return true;
}
int main(int argc, char **argv)
{
struct media_device *media;
int ret = -1;
if (parse_cmdline(argc, argv))
return EXIT_FAILURE;
/* Open the media device and enumerate entities, pads and links. */
if (media_opts.verbose)
media = media_open_debug(
media_opts.devname,
(void (*)(void *, ...))fprintf, stdout);
else
media = media_open(media_opts.devname);
if (media == NULL) {
printf("Failed to open %s\n", media_opts.devname);
goto out;
}
if (media_opts.print) {
printf("Media controller API version %u.%u.%u\n\n",
(media->info.media_version << 16) & 0xff,
(media->info.media_version << 8) & 0xff,
(media->info.media_version << 0) & 0xff);
printf("Media device information\n"
"------------------------\n"
"driver %s\n"
"model %s\n"
"serial %s\n"
"bus info %s\n"
"hw revision 0x%x\n"
"driver version %u.%u.%u\n\n",
media->info.driver, media->info.model,
media->info.serial, media->info.bus_info,
media->info.hw_revision,
(media->info.driver_version << 16) & 0xff,
(media->info.driver_version << 8) & 0xff,
(media->info.driver_version << 0) & 0xff);
}
if (media_opts.entity) {
struct media_entity *entity;
entity = media_get_entity_by_name(media, media_opts.entity,
strlen(media_opts.entity));
if (entity == NULL) {
printf("Entity '%s' not found\n", media_opts.entity);
goto out;
}
printf("%s\n", entity->devname);
}
if (media_opts.pad) {
struct media_pad *pad;
pad = media_parse_pad(media, media_opts.pad, NULL);
if (pad == NULL) {
printf("Pad '%s' not found\n", media_opts.pad);
goto out;
}
v4l2_subdev_print_format(pad->entity, pad->index,
V4L2_SUBDEV_FORMAT_ACTIVE);
}
if (media_opts.print || media_opts.print_dot) {
media_print_topology(media, media_opts.print_dot);
printf("\n");
}
if (media_opts.reset) {
if (media_opts.verbose)
printf("Resetting all links to inactive\n");
ret = media_reset_links(media);
if (ret) {
printf("Unable to reset links: %s (%d)\n",
strerror(-ret), -ret);
goto out;
}
}
if (media_opts.links) {
ret = media_parse_setup_links(media, media_opts.links);
if (ret) {
printf("Unable to parse link: %s (%d)\n",
strerror(-ret), -ret);
goto out;
}
}
if (media_opts.formats) {
ret = v4l2_subdev_parse_setup_formats(media,
media_opts.formats);
if (ret) {
printf("Unable to parse format: %s (%d)\n",
strerror(-ret), -ret);
goto out;
}
}
if (media_opts.interactive) {
while (1) {
char buffer[32];
char *end;
printf("Enter a link to modify or enter to stop\n");
if (fgets(buffer, sizeof buffer, stdin) == NULL)
break;
if (buffer[0] == '\n')
break;
ret = media_parse_setup_link(media, buffer, &end);
if (ret)
printf("Unable to parse link: %s (%d)\n",
strerror(-ret), -ret);
}
}
ret = 0;
out:
if (media)
media_close(media);
return ret ? EXIT_FAILURE : EXIT_SUCCESS;
}
