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Support subdevs

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This commit is contained in:
Kamil Trzcinski
2022-04-05 22:25:35 +02:00
parent f109f3f569
commit 1793c59818
5 changed files with 146 additions and 2 deletions
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11
hw/device.c
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@ -7,6 +7,7 @@ device_t *device_open(const char *name, const char *path) {
dev->name = strdup(name);
dev->path = strdup(path);
dev->fd = open(path, O_RDWR|O_NONBLOCK);
dev->subdev_fd = -1;
dev->allow_dma = true;
if(dev->fd < 0) {
E_LOG_ERROR(dev, "Can't open device");
@ -20,6 +21,8 @@ device_t *device_open(const char *name, const char *path) {
}
E_LOG_INFO(dev, "Device path=%s fd=%d opened", dev->path, dev->fd);
dev->subdev_fd = device_open_v4l2_subdev(dev, 0);
return dev;
error:
@ -42,6 +45,10 @@ void device_close(device_t *dev) {
dev->output_list = NULL;
}
if (dev->subdev_fd >= 0) {
close(dev->subdev_fd);
}
if(dev->fd >= 0) {
close(dev->fd);
}
@ -222,8 +229,8 @@ int device_set_option(device_t *dev, const char *name, uint32_t id, int32_t valu
ctl.id = id;
ctl.value = value;
E_LOG_DEBUG(dev, "Configuring option %s (%08x) = %d", name, id, value);
E_XIOCTL(dev, dev->fd, VIDIOC_S_CTRL, &ctl, "Can't set option %s", name);
E_XIOCTL(dev, dev->subdev_fd >= 0 ? dev->subdev_fd : dev->fd, VIDIOC_S_CTRL, &ctl, "Can't set option %s", name);
return 0;
error:
return -1;
}
}