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 "va_drm_utils.h" 30 #include "va_drmcommon.h" 31 32 struct driver_name_map { 33 const char *key; 34 int key_len; 35 const char *name; 36 }; 37 38 static const struct driver_name_map g_driver_name_map[] = { 39 { "i915", 4, "i965" }, // Intel OTC GenX driver 40 { "pvrsrvkm", 8, "pvr" }, // Intel UMG PVR driver 41 { "emgd", 4, "emgd" }, // Intel ECG PVR driver 42 { NULL, } 43 }; 44 45 /* Returns the VA driver name for the active display */ 46 VAStatus 47 VA_DRM_GetDriverName(VADriverContextP ctx, char **driver_name_ptr) 48 { 49 struct drm_state * const drm_state = ctx->drm_state; 50 drmVersionPtr drm_version; 51 char *driver_name = NULL; 52 const struct driver_name_map *m; 53 54 *driver_name_ptr = NULL; 55 56 if (!drm_state || drm_state->fd < 0) 57 return VA_STATUS_ERROR_INVALID_DISPLAY; 58 59 drm_version = drmGetVersion(drm_state->fd); 60 if (!drm_version) 61 return VA_STATUS_ERROR_UNKNOWN; 62 63 for (m = g_driver_name_map; m->key != NULL; m++) { 64 if (drm_version->name_len >= m->key_len && 65 strncmp(drm_version->name, m->key, m->key_len) == 0) 66 break; 67 } 68 drmFreeVersion(drm_version); 69 70 if (!m->name) 71 return VA_STATUS_ERROR_UNKNOWN; 72 73 driver_name = strdup(m->name); 74 if (!driver_name) 75 return VA_STATUS_ERROR_ALLOCATION_FAILED; 76 77 *driver_name_ptr = driver_name; 78 return VA_STATUS_SUCCESS; 79 } 80