loader: fallback to kernel name, if PCI fails
[mesa.git] / src / loader / loader.h
1 /*
2 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
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 * Authors:
24 * Rob Clark <robclark@freedesktop.org>
25 */
26
27 #ifndef LOADER_H
28 #define LOADER_H
29
30 #include <stdbool.h>
31
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35
36 struct __DRIextensionRec;
37
38 /* Helpers to figure out driver and device name, eg. from pci-id, etc. */
39
40 int
41 loader_open_device(const char *);
42
43 int
44 loader_open_render_node(const char *name);
45
46 bool
47 loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id);
48
49 char *
50 loader_get_driver_for_fd(int fd);
51
52 const struct __DRIextensionRec **
53 loader_open_driver(const char *driver_name,
54 void **out_driver_handle,
55 const char **search_path_vars);
56
57 char *
58 loader_get_device_name_for_fd(int fd);
59
60 /* Function to get a different device than the one we are to use by default,
61 * if the user requests so and it is possible. The initial fd will be closed
62 * if necessary. The returned fd is potentially a render-node.
63 */
64
65 int
66 loader_get_user_preferred_fd(int default_fd, bool *different_device);
67
68 /* for logging.. keep this aligned with egllog.h so we can just use
69 * _eglLog directly.
70 */
71
72 #define _LOADER_FATAL 0 /* unrecoverable error */
73 #define _LOADER_WARNING 1 /* recoverable error/problem */
74 #define _LOADER_INFO 2 /* just useful info */
75 #define _LOADER_DEBUG 3 /* useful info for debugging */
76
77 typedef void loader_logger(int level, const char *fmt, ...);
78 void
79 loader_set_logger(loader_logger *logger);
80
81 char *
82 loader_get_extensions_name(const char *driver_name);
83
84 #ifdef __cplusplus
85 }
86 #endif
87
88 #endif /* LOADER_H */