1 /* 2 * Copyright 2020 The Chromium OS Authors. All rights reserved. 3 * Use of this source code is governed by a BSD-style license that can be 4 * found in the LICENSE file. 5 */ 6 #ifndef _MINIGBM_HELPERS_H_ 7 #define _MINIGBM_HELPERS_H_ 8 9 #include <stdint.h> 10 11 #ifdef __cplusplus 12 extern "C" { 13 #endif 14 15 #define GBM_DEV_TYPE_FLAG_DISCRETE (1u << 0) /* Discrete GPU. Separate chip, dedicated VRAM. */ 16 #define GBM_DEV_TYPE_FLAG_DISPLAY (1u << 1) /* Device capable of display. */ 17 #define GBM_DEV_TYPE_FLAG_3D (1u << 2) /* Device capable or 3D rendering. */ 18 #define GBM_DEV_TYPE_FLAG_ARMSOC (1u << 3) /* Device on ARM SOC. */ 19 #define GBM_DEV_TYPE_FLAG_USB (1u << 4) /* USB device, udl, evdi. */ 20 #define GBM_DEV_TYPE_FLAG_BLOCKED (1u << 5) /* Unsuitable device e.g. vgem, udl, evdi. */ 21 #define GBM_DEV_TYPE_FLAG_INTERNAL_LCD (1u << 6) /* Device is driving internal LCD. */ 22 23 struct gbm_device; 24 25 struct gbm_device_info { 26 uint32_t dev_type_flags; 27 int dri_node_num; /* DRI node number (0..63), for easy matching of devices. */ 28 unsigned int connectors; 29 unsigned int connected; 30 }; 31 32 #define GBM_DETECT_FLAG_CONNECTED (1u << 0) /* Check if any connectors are connected. SLOW! */ 33 34 int gbm_detect_device_info(unsigned int detect_flags, int fd, struct gbm_device_info *info); 35 int gbm_detect_device_info_path(unsigned int detect_flags, const char *dev_node, 36 struct gbm_device_info *info); 37 38 /* 39 * Create "default" gbm device. 40 */ 41 struct gbm_device *minigbm_create_default_device(int *out_fd); 42 43 #ifdef __cplusplus 44 } 45 #endif 46 47 #endif 48