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/*
* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef _MINIGBM_HELPERS_H_
#define _MINIGBM_HELPERS_H_
#ifdef __cplusplus
extern "C" {
#endif
#define GBM_DEV_TYPE_FLAG_DISCRETE (1u << 0) /* Discrete GPU. Separate chip, dedicated VRAM. */
#define GBM_DEV_TYPE_FLAG_DISPLAY (1u << 1) /* Device capable of display. */
#define GBM_DEV_TYPE_FLAG_3D (1u << 2) /* Device capable or 3D rendering. */
#define GBM_DEV_TYPE_FLAG_ARMSOC (1u << 3) /* Device on ARM SOC. */
#define GBM_DEV_TYPE_FLAG_USB (1u << 4) /* USB device, udl, evdi. */
#define GBM_DEV_TYPE_FLAG_BLOCKED (1u << 5) /* Unsuitable device e.g. vgem, udl, evdi. */
#define GBM_DEV_TYPE_FLAG_INTERNAL_LCD (1u << 6) /* Device is driving internal LCD. */
struct gbm_device_info {
uint32_t dev_type_flags;
int dri_node_num; /* DRI node number (0..63), for easy matching of devices. */
unsigned int connectors;
unsigned int connected;
};
#define GBM_DETECT_FLAG_CONNECTED (1u << 0) /* Check if any connectors are connected. SLOW! */
int gbm_detect_device_info(unsigned int detect_flags, int fd, struct gbm_device_info *info);
int gbm_detect_device_info_path(unsigned int detect_flags, const char *dev_node,
struct gbm_device_info *info);
/*
* Select "default" device to use for graphics memory allocator.
*/
int gbm_get_default_device_fd(void);
#ifdef __cplusplus
}
#endif
#endif