From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from lb2-smtp-cloud8.xs4all.net ([194.109.24.25]:59286 "EHLO lb2-smtp-cloud8.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751399AbeECOxY (ORCPT ); Thu, 3 May 2018 10:53:24 -0400 From: Hans Verkuil To: linux-media@vger.kernel.org Cc: Hans Verkuil Subject: [PATCHv13 02/28] uapi/linux/media.h: add request API Date: Thu, 3 May 2018 16:52:52 +0200 Message-Id: <20180503145318.128315-3-hverkuil@xs4all.nl> In-Reply-To: <20180503145318.128315-1-hverkuil@xs4all.nl> References: <20180503145318.128315-1-hverkuil@xs4all.nl> Sender: linux-media-owner@vger.kernel.org List-ID: From: Hans Verkuil 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 --- 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 c7e9a5cba24e..32883d4d22b2 100644 --- a/include/uapi/linux/media.h +++ b/include/uapi/linux/media.h @@ -342,11 +342,23 @@ 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 from 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) #if !defined(__KERNEL__) || defined(__NEED_MEDIA_LEGACY_API) -- 2.17.0