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  1. /*
  2.  * va_drm_utils.c - VA/DRM Utilities
  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. #include "sysdeps.h"
  28. #include <xf86drm.h>
  29. #include <sys/stat.h>
  30. #include "va_drm_utils.h"
  31. #include "va_drmcommon.h"
  32.  
  33. /* Returns the VA driver name for the active display */
  34. VAStatus
  35. VA_DRM_GetDriverName(VADriverContextP ctx, char **driver_name_ptr)
  36. {
  37.     char *driver_name = NULL;
  38.  
  39.     *driver_name_ptr = NULL;
  40.  
  41.     driver_name = strdup("i965");
  42.     if (!driver_name)
  43.         return VA_STATUS_ERROR_ALLOCATION_FAILED;
  44.  
  45.     *driver_name_ptr = driver_name;
  46.     return VA_STATUS_SUCCESS;
  47. }
  48.  
  49. #if 0
  50. /* Checks whether the file descriptor is a DRM Render-Nodes one */
  51. int
  52. VA_DRM_IsRenderNodeFd(int fd)
  53. {
  54.     struct stat st;
  55.     const char *name;
  56.  
  57.     /* Check by device node */
  58.     if (fstat(fd, &st) == 0)
  59.         return S_ISCHR(st.st_mode) && (st.st_rdev & 0x80);
  60.  
  61.     /* Check by device name */
  62.     name = drmGetDeviceNameFromFd(fd);
  63.     if (name)
  64.         return strncmp(name, "/dev/dri/renderD", 16) == 0;
  65.  
  66.     /* Unrecoverable error */
  67.     return -1;
  68. }
  69. #endif
  70.