1 /*
2 * Copyright © 2023 Google, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 /*
25 * A simple header that either gives you the real libdrm or a no-op shim,
26 * depending on whether HAVE_LIBDRM is defined. This is intended to avoid
27 * the proliferation of #ifdef'ery to support environments without libdrm.
28 */
29
30 #ifdef HAVE_LIBDRM
31 #include <xf86drm.h>
32 #else
33
34 #include <errno.h>
35
36 #define DRM_NODE_PRIMARY 0
37 #define DRM_NODE_CONTROL 1
38 #define DRM_NODE_RENDER 2
39 #define DRM_NODE_MAX 3
40
41 #define DRM_BUS_PCI 0
42 #define DRM_BUS_USB 1
43 #define DRM_BUS_PLATFORM 2
44 #define DRM_BUS_HOST1X 3
45
46 typedef struct _drmDevice {
47 char **nodes; /* DRM_NODE_MAX sized array */
48 int available_nodes; /* DRM_NODE_* bitmask */
49 int bustype;
50 /* ... */
51 } drmDevice, *drmDevicePtr;
52
53 static inline int
drmGetDevices2(uint32_t flags,drmDevicePtr devices[],int max_devices)54 drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices)
55 {
56 return -ENOENT;
57 }
58
59 static inline void
drmFreeDevices(drmDevicePtr devices[],int count)60 drmFreeDevices(drmDevicePtr devices[], int count) {}
61
62 typedef struct _drmVersion {
63 int version_major; /**< Major version */
64 int version_minor; /**< Minor version */
65 int version_patchlevel; /**< Patch level */
66 int name_len; /**< Length of name buffer */
67 char *name; /**< Name of driver */
68 int date_len; /**< Length of date buffer */
69 char *date; /**< User-space buffer to hold date */
70 int desc_len; /**< Length of desc buffer */
71 char *desc; /**< User-space buffer to hold desc */
72 } drmVersion, *drmVersionPtr;
73
74 static inline struct _drmVersion *
drmGetVersion(int fd)75 drmGetVersion(int fd) { return NULL; }
76
77 static inline void
drmFreeVersion(struct _drmVersion * v)78 drmFreeVersion(struct _drmVersion *v) {}
79
80 #endif
81