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 int
  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 */