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 #include <stddef.h> 33 #include "GL/internal/dri_interface.h" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 struct __DRIextensionRec; 40 41 /* Helpers to figure out driver and device name, eg. from pci-id, etc. */ 42 43 int 44 loader_open_device(const char *); 45 46 char * 47 loader_get_kernel_driver_name(int fd); 48 49 int 50 loader_open_render_node_platform_device(const char * const drivers[], 51 unsigned int n_drivers); 52 53 bool 54 loader_is_device_render_capable(int fd); 55 56 char * 57 loader_get_render_node(dev_t device); 58 59 bool 60 loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id); 61 62 char * 63 loader_get_driver_for_fd(int fd); 64 65 void * 66 loader_open_driver_lib(const char *driver_name, 67 const char *lib_suffix, 68 const char **search_path_vars, 69 const char *default_search_path, 70 bool warn_on_fail); 71 72 const struct __DRIextensionRec ** 73 loader_open_driver(const char *driver_name, 74 void **out_driver_handle, 75 const char **search_path_vars); 76 77 char * 78 loader_get_device_name_for_fd(int fd); 79 80 /* For dri prime gpu offloading this function will take current render fd and possibly 81 * update it with new prime gpu offloading fd. For dri prime gpu offloading optionally 82 * this function can return the original fd. Also this function returns true/false based 83 * on render gpu is different from display gpu. 84 */ 85 86 bool 87 loader_get_user_preferred_fd(int *fd_render_gpu, int *original_fd); 88 89 /* for logging.. keep this aligned with egllog.h so we can just use 90 * _eglLog directly. 91 */ 92 93 #define _LOADER_FATAL 0 /* unrecoverable error */ 94 #define _LOADER_WARNING 1 /* recoverable error/problem */ 95 #define _LOADER_INFO 2 /* just useful info */ 96 #define _LOADER_DEBUG 3 /* useful info for debugging */ 97 98 typedef void loader_logger(int level, const char *fmt, ...); 99 void 100 loader_set_logger(loader_logger *logger); 101 102 char * 103 loader_get_extensions_name(const char *driver_name); 104 105 struct dri_extension_match { 106 /* __DRI_* extension name */ 107 const char *name; 108 109 /* Required minimum version in the extension struct */ 110 int version; 111 112 /* offset in the data arg at which to store a pointer to the extension */ 113 int offset; 114 115 bool optional; 116 }; 117 118 bool loader_bind_extensions(void *data, 119 const struct dri_extension_match *matches, size_t num_matches, 120 const __DRIextension **extensions); 121 122 #ifdef __cplusplus 123 } 124 #endif 125 126 #endif /* LOADER_H */ 127