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      1 /*
      2  * va_drmcommon.h - Common utilities for DRM-based drivers
      3  *
      4  * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the
      8  * "Software"), to deal in the Software without restriction, including
      9  * without limitation the rights to use, copy, modify, merge, publish,
     10  * distribute, sub license, and/or sell copies of the Software, and to
     11  * permit persons to whom the Software is furnished to do so, subject to
     12  * the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial portions
     16  * of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
     21  * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
     22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  */
     26 
     27 #ifndef VA_DRM_COMMON_H
     28 #define VA_DRM_COMMON_H
     29 
     30 /** \brief DRM authentication type. */
     31 enum {
     32     /** \brief Disconnected. */
     33     VA_DRM_AUTH_NONE    = 0,
     34     /**
     35      * \brief Connected. Authenticated with DRI1 protocol.
     36      *
     37      * @deprecated
     38      * This is a deprecated authentication type. All DRI-based drivers have
     39      * been migrated to use the DRI2 protocol. Newly written drivers shall
     40      * use DRI2 protocol only, or a custom authentication means. e.g. opt
     41      * for authenticating on the VA driver side, instead of libva side.
     42      */
     43     VA_DRM_AUTH_DRI1    = 1,
     44     /**
     45      * \brief Connected. Authenticated with DRI2 protocol.
     46      *
     47      * This is only useful to VA/X11 drivers. The libva-x11 library provides
     48      * a helper function VA_DRI2Authenticate() for authenticating the
     49      * connection. However, DRI2 conformant drivers don't need to call that
     50      * function since authentication happens on the libva side, implicitly.
     51      */
     52     VA_DRM_AUTH_DRI2    = 2,
     53     /**
     54      * \brief Connected. Authenticated with some alternate raw protocol.
     55      *
     56      * This authentication mode is mainly used in non-VA/X11 drivers.
     57      * Authentication happens through some alternative method, at the
     58      * discretion of the VA driver implementation.
     59      */
     60     VA_DRM_AUTH_CUSTOM  = 3
     61 };
     62 
     63 /** \brief Base DRM state. */
     64 struct drm_state {
     65     /** \brief DRM connection descriptor. */
     66     int         fd;
     67     /** \brief DRM authentication type. */
     68     int         auth_type;
     69 };
     70 
     71 /** \brief Kernel DRM buffer memory type.  */
     72 #define VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM		0x10000000
     73 /** \brief DRM PRIME memory type. */
     74 #define VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME		0x20000000
     75 
     76 #endif /* VA_DRM_COMMON_H */
     77