1 /************************************************************************** 2 * 3 * Copyright 2012 Francisco Jerez 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /** 29 * \file Library that provides device enumeration and creation of 30 * winsys/pipe_screen instances. 31 */ 32 33 #ifndef PIPE_LOADER_H 34 #define PIPE_LOADER_H 35 36 #include "pipe/p_compiler.h" 37 #include "state_tracker/drm_driver.h" 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 struct pipe_screen; 44 struct drisw_loader_funcs; 45 46 enum pipe_loader_device_type { 47 PIPE_LOADER_DEVICE_SOFTWARE, 48 PIPE_LOADER_DEVICE_PCI, 49 PIPE_LOADER_DEVICE_PLATFORM, 50 NUM_PIPE_LOADER_DEVICE_TYPES 51 }; 52 53 /** 54 * A device known to the pipe loader. 55 */ 56 struct pipe_loader_device { 57 enum pipe_loader_device_type type; 58 59 union { 60 struct { 61 int vendor_id; 62 int chip_id; 63 } pci; 64 } u; /**< Discriminated by \a type */ 65 66 char *driver_name; 67 const struct pipe_loader_ops *ops; 68 }; 69 70 /** 71 * Get a list of known devices. 72 * 73 * \param devs Array that will be filled with pointers to the devices 74 * available in the system. 75 * \param ndev Maximum number of devices to return. 76 * \return Number of devices available in the system. 77 */ 78 int 79 pipe_loader_probe(struct pipe_loader_device **devs, int ndev); 80 81 /** 82 * Create a pipe_screen for the specified device. 83 * 84 * \param dev Device the screen will be created for. 85 */ 86 struct pipe_screen * 87 pipe_loader_create_screen(struct pipe_loader_device *dev); 88 89 /** 90 * Query the configuration parameters for the specified device. 91 * 92 * \param dev Device that will be queried. 93 * \param conf The drm_conf id of the option to be queried. 94 */ 95 const struct drm_conf_ret * 96 pipe_loader_configuration(struct pipe_loader_device *dev, 97 enum drm_conf conf); 98 99 /** 100 * Release resources allocated for a list of devices. 101 * 102 * Should be called when the specified devices are no longer in use to 103 * release any resources allocated by pipe_loader_probe. 104 * 105 * \param devs Devices to release. 106 * \param ndev Number of devices to release. 107 */ 108 void 109 pipe_loader_release(struct pipe_loader_device **devs, int ndev); 110 111 /** 112 * Initialize sw dri device give the drisw_loader_funcs. 113 * 114 * This function is platform-specific. 115 * 116 * \sa pipe_loader_probe 117 */ 118 bool 119 pipe_loader_sw_probe_dri(struct pipe_loader_device **devs, 120 struct drisw_loader_funcs *drisw_lf); 121 122 /** 123 * Initialize a kms backed sw device given an fd. 124 * 125 * This function is platform-specific. 126 * 127 * \sa pipe_loader_probe 128 */ 129 bool 130 pipe_loader_sw_probe_kms(struct pipe_loader_device **devs, int fd); 131 132 /** 133 * Initialize a null sw device. 134 * 135 * This function is platform-specific. 136 * 137 * \sa pipe_loader_probe 138 */ 139 bool 140 pipe_loader_sw_probe_null(struct pipe_loader_device **devs); 141 142 /** 143 * Get a list of known software devices. 144 * 145 * This function is platform-specific. 146 * 147 * \sa pipe_loader_probe 148 */ 149 int 150 pipe_loader_sw_probe(struct pipe_loader_device **devs, int ndev); 151 152 /** 153 * Get a software device wrapped atop another device. 154 * 155 * This function is platform-specific. 156 * 157 * \sa pipe_loader_probe 158 */ 159 boolean 160 pipe_loader_sw_probe_wrapped(struct pipe_loader_device **dev, 161 struct pipe_screen *screen); 162 163 /** 164 * Get a list of known DRM devices. 165 * 166 * This function is platform-specific. 167 * 168 * \sa pipe_loader_probe 169 */ 170 int 171 pipe_loader_drm_probe(struct pipe_loader_device **devs, int ndev); 172 173 /** 174 * Initialize a DRM device in an already opened fd. 175 * 176 * This function is platform-specific. 177 * 178 * \sa pipe_loader_probe 179 */ 180 bool 181 pipe_loader_drm_probe_fd(struct pipe_loader_device **dev, int fd); 182 183 #ifdef __cplusplus 184 } 185 #endif 186 187 #endif /* PIPE_LOADER_H */ 188
