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 #include <sys/stat.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 struct __DRIextensionRec; 38 39 /* Helpers to figure out driver and device name, eg. from pci-id, etc. */ 40 41 int 42 loader_open_device(const char *device_name); 43 44 int 45 loader_open_render_node(const char *name); 46 47 char * 48 loader_get_render_node(dev_t device); 49 50 bool 51 loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id); 52 53 char * 54 loader_get_driver_for_fd(int fd); 55 56 void * 57 loader_open_driver_lib(const char *driver_name, 58 const char *lib_suffix, 59 const char **search_path_vars, 60 const char *default_search_path, 61 bool warn_on_fail); 62 63 const struct __DRIextensionRec ** 64 loader_open_driver(const char *driver_name, 65 void **out_driver_handle, 66 const char **search_path_vars); 67 68 char * 69 loader_get_device_name_for_fd(int fd); 70 71 /* Function to get a different device than the one we are to use by default, 72 * if the user requests so and it is possible. The initial fd will be closed 73 * if necessary. The returned fd is potentially a render-node. 74 */ 75 76 int 77 loader_get_user_preferred_fd(int default_fd, bool *different_device); 78 79 /* for logging.. keep this aligned with egllog.h so we can just use 80 * _eglLog directly. 81 */ 82 83 #define _LOADER_FATAL 0 /* unrecoverable error */ 84 #define _LOADER_WARNING 1 /* recoverable error/problem */ 85 #define _LOADER_INFO 2 /* just useful info */ 86 #define _LOADER_DEBUG 3 /* useful info for debugging */ 87 88 typedef void loader_logger(int level, const char *fmt, ...); 89 void 90 loader_set_logger(loader_logger *logger); 91 92 char * 93 loader_get_extensions_name(const char *driver_name); 94 95 #ifdef __cplusplus 96 } 97 #endif 98 99 #endif /* LOADER_H */ 100