void v4l2_overlay_dump_state(int fd)
{
struct v4l2_format format;
struct v4l2_crop crop;
int ret;
LOGI("dumping driver state:");
format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
ret = ioctl(fd, VIDIOC_G_FMT, &format);
if (ret < 0)
return;
LOGI("output pixfmt:\n");
dump_pixfmt(&format.fmt.pix);
format.type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
ret = ioctl(fd, VIDIOC_G_FMT, &format);
if (ret < 0)
return;
LOGI("v4l2_overlay window:\n");
dump_window(&format.fmt.win);
crop.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
ret = ioctl(fd, VIDIOC_G_CROP, &crop);
if (ret < 0)
return;
LOGI("output crop:\n");
dump_crop(&crop);
}
int main(int argc, char **argv)
{
int fd;
parse_args(argc, argv);
memset(&window, 0, sizeof(struct vme_mapping));
if ((window_num < 0) || (window_num > 7)) {
printf("Wrong window number %d_n", window_num);
exit(1);
}
window.window_num = window_num;
window.am = am;
switch (dsize) {
case 16:
window.data_width = VME_D16;
break;
case 32:
window.data_width = VME_D32;
break;
default:
printf("Unsupported data width %d\n", dsize);
exit(1);
}
window.vme_addru = 0;
window.vme_addrl = vmeaddr;
window.sizeu = 0;
window.sizel = length;
printf("Creating window %d\n\tVME addr: 0x%08x size: 0x%08x "
"AM: 0x%02x data width: %d\n\n",
window_num, vmeaddr, length, am, dsize);
if ((fd = open(VME_MWINDOW_DEV, O_RDWR)) < 0) {
printf("Failed to open %s: %s\n", VME_MWINDOW_DEV,
strerror(errno));
exit(1);
}
if (ioctl(fd, VME_IOCTL_CREATE_WINDOW, &window) < 0) {
printf("Failed to create window: %s\n", strerror(errno));
close(fd);
exit(1);
}
memset(&testw, 0, sizeof(struct vme_mapping));
testw.window_num = window_num;
if (ioctl(fd, VME_IOCTL_GET_WINDOW_ATTR, &testw) < 0) {
printf("Failed to get window attributes: %s\n",
strerror(errno));
close(fd);
exit(1);
}
compare_windows(&window, &testw);
dump_window(&window);
close(fd);
return 0;
}