1 /*
2 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #include "sysdeps.h"
26 #include <xf86drm.h>
27 #include "va_drm.h"
28 #include "va_backend.h"
29 #include "va_drmcommon.h"
30 #include "va_drm_auth.h"
31 #include "va_drm_utils.h"
32
33 static int
va_DisplayContextIsValid(VADisplayContextP pDisplayContext)34 va_DisplayContextIsValid(VADisplayContextP pDisplayContext)
35 {
36 VADriverContextP const pDriverContext = pDisplayContext->pDriverContext;
37
38 return (pDriverContext &&
39 pDriverContext->display_type == VA_DISPLAY_DRM);
40 }
41
42 static void
va_DisplayContextDestroy(VADisplayContextP pDisplayContext)43 va_DisplayContextDestroy(VADisplayContextP pDisplayContext)
44 {
45 if (!pDisplayContext)
46 return;
47
48 free(pDisplayContext->pDriverContext->drm_state);
49 free(pDisplayContext->pDriverContext);
50 free(pDisplayContext);
51 }
52
53 static VAStatus
va_DisplayContextGetDriverName(VADisplayContextP pDisplayContext,char ** driver_name_ptr)54 va_DisplayContextGetDriverName(
55 VADisplayContextP pDisplayContext,
56 char **driver_name_ptr
57 )
58 {
59
60 VADriverContextP const ctx = pDisplayContext->pDriverContext;
61 struct drm_state * const drm_state = ctx->drm_state;
62 drm_magic_t magic;
63 VAStatus status;
64 int ret;
65
66 status = VA_DRM_GetDriverName(ctx, driver_name_ptr);
67 if (status != VA_STATUS_SUCCESS)
68 return status;
69
70 ret = drmGetMagic(drm_state->fd, &magic);
71 if (ret < 0)
72 return VA_STATUS_ERROR_OPERATION_FAILED;
73
74 if (!va_drm_is_authenticated(drm_state->fd)) {
75 if (!va_drm_authenticate(drm_state->fd, magic))
76 return VA_STATUS_ERROR_OPERATION_FAILED;
77 if (!va_drm_is_authenticated(drm_state->fd))
78 return VA_STATUS_ERROR_OPERATION_FAILED;
79 }
80
81 drm_state->auth_type = VA_DRM_AUTH_CUSTOM;
82
83 return VA_STATUS_SUCCESS;
84 }
85
86 VADisplay
vaGetDisplayDRM(int fd)87 vaGetDisplayDRM(int fd)
88 {
89 VADisplayContextP pDisplayContext = NULL;
90 VADriverContextP pDriverContext = NULL;
91 struct drm_state *drm_state = NULL;
92
93 if (fd < 0)
94 return NULL;
95
96 /* Create new entry */
97 /* XXX: handle cache? */
98 drm_state = calloc(1, sizeof(*drm_state));
99 if (!drm_state)
100 goto error;
101 drm_state->fd = fd;
102
103 pDriverContext = calloc(1, sizeof(*pDriverContext));
104 if (!pDriverContext)
105 goto error;
106 pDriverContext->native_dpy = NULL;
107 pDriverContext->display_type = VA_DISPLAY_DRM;
108 pDriverContext->drm_state = drm_state;
109
110 pDisplayContext = calloc(1, sizeof(*pDisplayContext));
111 if (!pDisplayContext)
112 goto error;
113
114 pDisplayContext->vadpy_magic = VA_DISPLAY_MAGIC;
115 pDisplayContext->pDriverContext = pDriverContext;
116 pDisplayContext->vaIsValid = va_DisplayContextIsValid;
117 pDisplayContext->vaDestroy = va_DisplayContextDestroy;
118 pDisplayContext->vaGetDriverName = va_DisplayContextGetDriverName;
119 return pDisplayContext;
120
121 error:
122 free(pDisplayContext);
123 free(pDriverContext);
124 free(drm_state);
125 return NULL;
126 }
127