From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Define the public request API.
This adds the new MEDIA_IOC_REQUEST_ALLOC ioctl to allocate a request
and two ioctls that operate on a request in order to queue the
contents of the request to the driver and to re-initialize the
request.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
include/uapi/linux/media.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 36f76e777ef9..cf77f00a0f2d 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -364,11 +364,23 @@ struct media_v2_topology {
/* ioctls */
+struct __attribute__ ((packed)) media_request_alloc {
+ __s32 fd;
+};
+
#define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info)
#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc)
#define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum)
#define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc)
#define MEDIA_IOC_G_TOPOLOGY _IOWR('|', 0x04, struct media_v2_topology)
+#define MEDIA_IOC_REQUEST_ALLOC _IOWR('|', 0x05, struct media_request_alloc)
+
+/*
+ * These ioctls are called on the request file descriptor as returned
+ * by MEDIA_IOC_REQUEST_ALLOC.
+ */
+#define MEDIA_REQUEST_IOC_QUEUE _IO('|', 0x80)
+#define MEDIA_REQUEST_IOC_REINIT _IO('|', 0x81)
#ifndef __KERNEL__
--
2.18.0
