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926 lines
37 KiB
C++
926 lines
37 KiB
C++
/**
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* \file xf86drm.h
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* OS-independent header for DRM user-level library interface.
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*
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* \author Rickard E. (Rik) Faith <faith@valinux.com>
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*/
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/*
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* Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef _XF86DRM_H_
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#define _XF86DRM_H_
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#include <sys/types.h>
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#include <cstdarg>
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#include <cstdint>
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#ifndef __LIBDRM__
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#define __LIBDRM__
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#include <libdrm/drm.h>
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#endif
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#ifndef DRM_MAX_MINOR
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#define DRM_MAX_MINOR 64 /* deprecated */
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#endif
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#if defined(__linux__)
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#define DRM_IOCTL_NR(n) _IOC_NR(n)
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#define DRM_IOC_VOID _IOC_NONE
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#define DRM_IOC_READ _IOC_READ
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#define DRM_IOC_WRITE _IOC_WRITE
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#define DRM_IOC_READWRITE _IOC_READ | _IOC_WRITE
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#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
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#else /* One of the *BSDs */
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#include <sys/ioccom.h>
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#define DRM_IOCTL_NR(n) ((n) & 0xff)
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#define DRM_IOC_VOID IOC_VOID
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#define DRM_IOC_READ IOC_OUT
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#define DRM_IOC_WRITE IOC_IN
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#define DRM_IOC_READWRITE IOC_INOUT
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#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
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#endif
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/* Defaults, if nothing set in xf86config */
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#define DRM_DEV_UID 0
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#define DRM_DEV_GID 0
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/* Default /dev/dri directory permissions 0755 */
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#define DRM_DEV_DIRMODE (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
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#define DRM_DEV_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP)
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#ifdef __OpenBSD__
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#define DRM_DIR_NAME "/dev"
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#define DRM_PRIMARY_MINOR_NAME "drm"
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#define DRM_CONTROL_MINOR_NAME "drmC" /* deprecated */
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#define DRM_RENDER_MINOR_NAME "drmR"
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#else
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#define DRM_DIR_NAME "/dev/dri"
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#define DRM_PRIMARY_MINOR_NAME "card"
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#define DRM_CONTROL_MINOR_NAME "controlD" /* deprecated */
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#define DRM_RENDER_MINOR_NAME "renderD"
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#define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */
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#endif
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#define DRM_DEV_NAME "%s/" DRM_PRIMARY_MINOR_NAME "%d"
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#define DRM_CONTROL_DEV_NAME "%s/" DRM_CONTROL_MINOR_NAME "%d" /* deprecated */
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#define DRM_RENDER_DEV_NAME "%s/" DRM_RENDER_MINOR_NAME "%d"
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#define DRM_NODE_NAME_MAX \
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(sizeof(DRM_DIR_NAME) + 1 /* slash */ \
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+ MAX3(sizeof(DRM_PRIMARY_MINOR_NAME), sizeof(DRM_CONTROL_MINOR_NAME), \
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sizeof(DRM_RENDER_MINOR_NAME)) + \
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sizeof("1048575") /* highest possible node number 2^MINORBITS - 1 */ \
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+ 1) /* NULL-terminator */
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#define DRM_ERR_NO_DEVICE (-1001)
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#define DRM_ERR_NO_ACCESS (-1002)
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#define DRM_ERR_NOT_ROOT (-1003)
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#define DRM_ERR_INVALID (-1004)
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#define DRM_ERR_NO_FD (-1005)
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#define DRM_AGP_NO_HANDLE 0
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typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */
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typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */
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#if (__GNUC__ >= 3)
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#define DRM_PRINTFLIKE(f, a) __attribute__((format(__printf__, f, a)))
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#else
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#define DRM_PRINTFLIKE(f, a)
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#endif
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typedef struct _drmServerInfo {
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int (*debug_print)(const char* format, va_list ap) DRM_PRINTFLIKE(1, 0);
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int (*load_module)(const char* name);
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void (*get_perms)(gid_t*, mode_t*);
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} drmServerInfo, *drmServerInfoPtr;
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typedef struct drmHashEntry {
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int fd;
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void (*f)(int, void*, void*);
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void* tagTable;
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} drmHashEntry;
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extern int drmIoctl(int fd, unsigned long request, void* arg);
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extern void* drmGetHashTable(void);
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extern drmHashEntry* drmGetEntry(int fd);
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/**
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* Driver version information.
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*
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* \sa drmGetVersion() and drmSetVersion().
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*/
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typedef struct _drmVersion {
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int version_major; /**< Major version */
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int version_minor; /**< Minor version */
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int version_patchlevel; /**< Patch level */
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int name_len; /**< Length of name buffer */
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char* name; /**< Name of driver */
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int date_len; /**< Length of date buffer */
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char* date; /**< User-space buffer to hold date */
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int desc_len; /**< Length of desc buffer */
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char* desc; /**< User-space buffer to hold desc */
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} drmVersion, *drmVersionPtr;
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typedef struct _drmStats {
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unsigned long count; /**< Number of data */
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struct {
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unsigned long value; /**< Value from kernel */
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const char* long_format; /**< Suggested format for long_name */
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const char* long_name; /**< Long name for value */
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const char* rate_format; /**< Suggested format for rate_name */
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const char* rate_name; /**< Short name for value per second */
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int isvalue; /**< True if value (vs. counter) */
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const char* mult_names; /**< Multiplier names (e.g., "KGM") */
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int mult; /**< Multiplier value (e.g., 1024) */
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int verbose; /**< Suggest only in verbose output */
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} data[15];
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} drmStatsT;
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/* All of these enums *MUST* match with the
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kernel implementation -- so do *NOT*
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change them! (The drmlib implementation
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will just copy the flags instead of
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translating them.) */
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typedef enum {
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DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */
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DRM_REGISTERS = 1, /**< no caching, no core dump */
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DRM_SHM = 2, /**< shared, cached */
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DRM_AGP = 3, /**< AGP/GART */
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DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */
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DRM_CONSISTENT = 5 /**< PCI consistent */
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} drmMapType;
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typedef enum {
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DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */
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DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */
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DRM_LOCKED = 0x0004, /**< Physical pages locked */
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DRM_KERNEL = 0x0008, /**< Kernel requires access */
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DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */
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DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */
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DRM_REMOVABLE = 0x0040 /**< Removable mapping */
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} drmMapFlags;
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/**
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* \warning These values *MUST* match drm.h
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*/
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typedef enum {
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/** \name Flags for DMA buffer dispatch */
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/*@{*/
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DRM_DMA_BLOCK = 0x01, /**<
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* Block until buffer dispatched.
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*
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* \note the buffer may not yet have been
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* processed by the hardware -- getting a
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* hardware lock with the hardware quiescent
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* will ensure that the buffer has been
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* processed.
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*/
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DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
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DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */
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/*@}*/
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/** \name Flags for DMA buffer request */
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/*@{*/
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DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */
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DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */
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DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */
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/*@}*/
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} drmDMAFlags;
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typedef enum {
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DRM_PAGE_ALIGN = 0x01,
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DRM_AGP_BUFFER = 0x02,
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DRM_SG_BUFFER = 0x04,
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DRM_FB_BUFFER = 0x08,
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DRM_PCI_BUFFER_RO = 0x10
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} drmBufDescFlags;
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typedef enum {
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DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */
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DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */
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DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */
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DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */
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/* These *HALT* flags aren't supported yet
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-- they will be used to support the
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full-screen DGA-like mode. */
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DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
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DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */
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} drmLockFlags;
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typedef enum {
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DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and
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never swapped. */
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DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */
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} drm_context_tFlags,
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*drm_context_tFlagsPtr;
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typedef struct _drmBufDesc {
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int count; /**< Number of buffers of this size */
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int size; /**< Size in bytes */
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int low_mark; /**< Low water mark */
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int high_mark; /**< High water mark */
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} drmBufDesc, *drmBufDescPtr;
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typedef struct _drmBufInfo {
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int count; /**< Number of buffers described in list */
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drmBufDescPtr list; /**< List of buffer descriptions */
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} drmBufInfo, *drmBufInfoPtr;
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typedef struct _drmBuf {
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int idx; /**< Index into the master buffer list */
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int total; /**< Buffer size */
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int used; /**< Amount of buffer in use (for DMA) */
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drmAddress address; /**< Address */
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} drmBuf, *drmBufPtr;
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/**
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* Buffer mapping information.
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*
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* Used by drmMapBufs() and drmUnmapBufs() to store information about the
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* mapped buffers.
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*/
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typedef struct _drmBufMap {
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int count; /**< Number of buffers mapped */
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drmBufPtr list; /**< Buffers */
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} drmBufMap, *drmBufMapPtr;
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typedef struct _drmLock {
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volatile unsigned int lock;
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char padding[60];
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/* This is big enough for most current (and future?) architectures:
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DEC Alpha: 32 bytes
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Intel Merced: ?
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Intel P5/PPro/PII/PIII: 32 bytes
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Intel StrongARM: 32 bytes
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Intel i386/i486: 16 bytes
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MIPS: 32 bytes (?)
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Motorola 68k: 16 bytes
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Motorola PowerPC: 32 bytes
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Sun SPARC: 32 bytes
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*/
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} drmLock, *drmLockPtr;
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/**
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* Indices here refer to the offset into
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* list in drmBufInfo
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*/
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typedef struct _drmDMAReq {
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drm_context_t context; /**< Context handle */
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int send_count; /**< Number of buffers to send */
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int* send_list; /**< List of handles to buffers */
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int* send_sizes; /**< Lengths of data to send, in bytes */
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drmDMAFlags flags; /**< Flags */
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int request_count; /**< Number of buffers requested */
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int request_size; /**< Desired size of buffers requested */
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int* request_list; /**< Buffer information */
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int* request_sizes; /**< Minimum acceptable sizes */
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int granted_count; /**< Number of buffers granted at this size */
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} drmDMAReq, *drmDMAReqPtr;
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typedef struct _drmRegion {
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drm_handle_t handle;
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unsigned int offset;
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drmSize size;
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drmAddress map;
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} drmRegion, *drmRegionPtr;
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typedef struct _drmTextureRegion {
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unsigned char next;
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unsigned char prev;
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unsigned char in_use;
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unsigned char padding; /**< Explicitly pad this out */
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unsigned int age;
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} drmTextureRegion, *drmTextureRegionPtr;
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typedef enum {
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DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
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DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
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/* bits 1-6 are reserved for high crtcs */
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DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,
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DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */
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DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
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DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
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DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
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DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */
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} drmVBlankSeqType;
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#define DRM_VBLANK_HIGH_CRTC_SHIFT 1
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typedef struct _drmVBlankReq {
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drmVBlankSeqType type;
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unsigned int sequence;
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unsigned long signal;
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} drmVBlankReq, *drmVBlankReqPtr;
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typedef struct _drmVBlankReply {
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drmVBlankSeqType type;
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unsigned int sequence;
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long tval_sec;
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long tval_usec;
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} drmVBlankReply, *drmVBlankReplyPtr;
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typedef union _drmVBlank {
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drmVBlankReq request;
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drmVBlankReply reply;
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} drmVBlank, *drmVBlankPtr;
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typedef struct _drmSetVersion {
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int drm_di_major;
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int drm_di_minor;
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int drm_dd_major;
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int drm_dd_minor;
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} drmSetVersion, *drmSetVersionPtr;
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#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int*)lock)
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#define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */
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#define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */
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#if defined(__GNUC__) && (__GNUC__ >= 2)
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#if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__)
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/* Reflect changes here to drmP.h */
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#define DRM_CAS(lock, old, new, __ret) \
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do { \
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int __dummy; /* Can't mark eax as clobbered */ \
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__asm__ __volatile__( \
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"lock ; cmpxchg %4,%1\n\t" \
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"setnz %0" \
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: "=d"(__ret), "=m"(__drm_dummy_lock(lock)), "=a"(__dummy) \
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: "2"(old), "r"(new)); \
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} while (0)
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#elif defined(__alpha__)
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#define DRM_CAS(lock, old, new, ret) \
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do { \
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int tmp, old32; \
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__asm__ __volatile__( \
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" addl $31, %5, %3\n" \
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"1: ldl_l %0, %2\n" \
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" cmpeq %0, %3, %1\n" \
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" beq %1, 2f\n" \
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" mov %4, %0\n" \
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" stl_c %0, %2\n" \
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" beq %0, 3f\n" \
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" mb\n" \
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"2: cmpeq %1, 0, %1\n" \
|
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".subsection 2\n" \
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"3: br 1b\n" \
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".previous" \
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|
: "=&r"(tmp), "=&r"(ret), "=m"(__drm_dummy_lock(lock)), "=&r"(old32) \
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: "r"(new), "r"(old) \
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: "memory"); \
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} while (0)
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#elif defined(__sparc__)
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#define DRM_CAS(lock, old, new, __ret) \
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do { \
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register unsigned int __old __asm("o0"); \
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register unsigned int __new __asm("o1"); \
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register volatile unsigned int* __lock __asm("o2"); \
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__old = old; \
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__new = new; \
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__lock = (volatile unsigned int*)lock; \
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__asm__ __volatile__( /*"cas [%2], %3, %0"*/ \
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".word 0xd3e29008\n\t" /*"membar #StoreStore | #StoreLoad"*/ \
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".word 0x8143e00a" \
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: "=&r"(__new) \
|
|
: "0"(__new), "r"(__lock), "r"(__old) \
|
|
: "memory"); \
|
|
__ret = (__new != __old); \
|
|
} while (0)
|
|
|
|
#elif defined(__ia64__)
|
|
|
|
#ifdef __INTEL_COMPILER
|
|
/* this currently generates bad code (missing stop bits)... */
|
|
#include <ia64intrin.h>
|
|
|
|
#define DRM_CAS(lock, old, new, __ret) \
|
|
do { \
|
|
unsigned long __result, __old = (old) & 0xffffffff; \
|
|
__mf(); \
|
|
__result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old); \
|
|
__ret = (__result) != (__old); \
|
|
/* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \
|
|
(old), (new)) \
|
|
!= (old)); */ \
|
|
} while (0)
|
|
|
|
#else
|
|
#define DRM_CAS(lock, old, new, __ret) \
|
|
do { \
|
|
unsigned int __result, __old = (old); \
|
|
__asm__ __volatile__( \
|
|
"mf\n" \
|
|
"mov ar.ccv=%2\n" \
|
|
";;\n" \
|
|
"cmpxchg4.acq %0=%1,%3,ar.ccv" \
|
|
: "=r"(__result), "=m"(__drm_dummy_lock(lock)) \
|
|
: "r"((unsigned long)__old), "r"(new) \
|
|
: "memory"); \
|
|
__ret = (__result) != (__old); \
|
|
} while (0)
|
|
|
|
#endif
|
|
|
|
#elif defined(__powerpc__)
|
|
|
|
#define DRM_CAS(lock, old, new, __ret) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
"sync;" \
|
|
"0: lwarx %0,0,%1;" \
|
|
" xor. %0,%3,%0;" \
|
|
" bne 1f;" \
|
|
" stwcx. %2,0,%1;" \
|
|
" bne- 0b;" \
|
|
"1: " \
|
|
"sync;" \
|
|
: "=&r"(__ret) \
|
|
: "r"(lock), "r"(new), "r"(old) \
|
|
: "cr0", "memory"); \
|
|
} while (0)
|
|
|
|
#elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6Z__) || \
|
|
defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || \
|
|
defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || \
|
|
defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
|
|
/* excluding ARMv4/ARMv5 and lower (lacking ldrex/strex support) */
|
|
#undef DRM_DEV_MODE
|
|
#define DRM_DEV_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
|
|
|
|
#define DRM_CAS(lock, old, new, __ret) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
"1: ldrex %0, [%1]\n" \
|
|
" teq %0, %2\n" \
|
|
" ite eq\n" \
|
|
" strexeq %0, %3, [%1]\n" \
|
|
" movne %0, #1\n" \
|
|
: "=&r"(__ret) \
|
|
: "r"(lock), "r"(old), "r"(new) \
|
|
: "cc", "memory"); \
|
|
} while (0)
|
|
|
|
#endif /* architecture */
|
|
#endif /* __GNUC__ >= 2 */
|
|
|
|
#ifndef DRM_CAS
|
|
#define DRM_CAS(lock, old, new, ret) \
|
|
do { \
|
|
ret = 1; \
|
|
} while (0) /* FAST LOCK FAILS */
|
|
#endif
|
|
|
|
#if defined(__alpha__)
|
|
#define DRM_CAS_RESULT(_result) long _result
|
|
#elif defined(__powerpc__)
|
|
#define DRM_CAS_RESULT(_result) int _result
|
|
#else
|
|
#define DRM_CAS_RESULT(_result) char _result
|
|
#endif
|
|
|
|
#define DRM_LIGHT_LOCK(fd, lock, context) \
|
|
do { \
|
|
DRM_CAS_RESULT(__ret); \
|
|
DRM_CAS(lock, context, DRM_LOCK_HELD | context, __ret); \
|
|
if (__ret) drmGetLock(fd, context, 0); \
|
|
} while (0)
|
|
|
|
/* This one counts fast locks -- for
|
|
benchmarking only. */
|
|
#define DRM_LIGHT_LOCK_COUNT(fd, lock, context, count) \
|
|
do { \
|
|
DRM_CAS_RESULT(__ret); \
|
|
DRM_CAS(lock, context, DRM_LOCK_HELD | context, __ret); \
|
|
if (__ret) \
|
|
drmGetLock(fd, context, 0); \
|
|
else \
|
|
++count; \
|
|
} while (0)
|
|
|
|
#define DRM_LOCK(fd, lock, context, flags) \
|
|
do { \
|
|
if (flags) \
|
|
drmGetLock(fd, context, flags); \
|
|
else \
|
|
DRM_LIGHT_LOCK(fd, lock, context); \
|
|
} while (0)
|
|
|
|
#define DRM_UNLOCK(fd, lock, context) \
|
|
do { \
|
|
DRM_CAS_RESULT(__ret); \
|
|
DRM_CAS(lock, DRM_LOCK_HELD | context, context, __ret); \
|
|
if (__ret) drmUnlock(fd, context); \
|
|
} while (0)
|
|
|
|
/* Simple spin locks */
|
|
#define DRM_SPINLOCK(spin, val) \
|
|
do { \
|
|
DRM_CAS_RESULT(__ret); \
|
|
do { \
|
|
DRM_CAS(spin, 0, val, __ret); \
|
|
if (__ret) \
|
|
while ((spin)->lock); \
|
|
} while (__ret); \
|
|
} while (0)
|
|
|
|
#define DRM_SPINLOCK_TAKE(spin, val) \
|
|
do { \
|
|
DRM_CAS_RESULT(__ret); \
|
|
int cur; \
|
|
do { \
|
|
cur = (*spin).lock; \
|
|
DRM_CAS(spin, cur, val, __ret); \
|
|
} while (__ret); \
|
|
} while (0)
|
|
|
|
#define DRM_SPINLOCK_COUNT(spin, val, count, __ret) \
|
|
do { \
|
|
int __i; \
|
|
__ret = 1; \
|
|
for (__i = 0; __ret && __i < count; __i++) { \
|
|
DRM_CAS(spin, 0, val, __ret); \
|
|
if (__ret) \
|
|
for (; __i < count && (spin)->lock; __i++); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define DRM_SPINUNLOCK(spin, val) \
|
|
do { \
|
|
DRM_CAS_RESULT(__ret); \
|
|
if ((*spin).lock == val) { /* else server stole lock */ \
|
|
do { \
|
|
DRM_CAS(spin, val, 0, __ret); \
|
|
} while (__ret); \
|
|
} \
|
|
} while (0)
|
|
|
|
/* General user-level programmer's API: unprivileged */
|
|
extern int drmAvailable(void);
|
|
extern int drmOpen(const char* name, const char* busid);
|
|
|
|
#define DRM_NODE_PRIMARY 0
|
|
#define DRM_NODE_CONTROL 1 /* deprecated: never returned */
|
|
#define DRM_NODE_RENDER 2
|
|
#define DRM_NODE_MAX 3
|
|
|
|
extern int drmOpenWithType(const char* name, const char* busid, int type);
|
|
|
|
extern int drmOpenControl(int minor); /* deprecated: always fails */
|
|
extern int drmOpenRender(int minor);
|
|
extern int drmClose(int fd);
|
|
extern drmVersionPtr drmGetVersion(int fd);
|
|
extern drmVersionPtr drmGetLibVersion(int fd);
|
|
extern int drmGetCap(int fd, uint64_t capability, uint64_t* value);
|
|
extern void drmFreeVersion(drmVersionPtr);
|
|
extern int drmGetMagic(int fd, drm_magic_t* magic);
|
|
extern char* drmGetBusid(int fd);
|
|
extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum, int funcnum);
|
|
extern int drmGetMap(int fd, int idx, drm_handle_t* offset, drmSize* size, drmMapType* type,
|
|
drmMapFlags* flags, drm_handle_t* handle, int* mtrr);
|
|
extern int drmGetClient(int fd, int idx, int* auth, int* pid, int* uid, unsigned long* magic,
|
|
unsigned long* iocs);
|
|
extern int drmGetStats(int fd, drmStatsT* stats);
|
|
extern int drmSetInterfaceVersion(int fd, drmSetVersion* version);
|
|
extern int drmCommandNone(int fd, unsigned long drmCommandIndex);
|
|
extern int drmCommandRead(int fd, unsigned long drmCommandIndex, void* data, unsigned long size);
|
|
extern int drmCommandWrite(int fd, unsigned long drmCommandIndex, void* data, unsigned long size);
|
|
extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex, void* data,
|
|
unsigned long size);
|
|
|
|
/* General user-level programmer's API: X server (root) only */
|
|
extern void drmFreeBusid(const char* busid);
|
|
extern int drmSetBusid(int fd, const char* busid);
|
|
extern int drmAuthMagic(int fd, drm_magic_t magic);
|
|
extern int drmAddMap(int fd, drm_handle_t offset, drmSize size, drmMapType type, drmMapFlags flags,
|
|
drm_handle_t* handle);
|
|
extern int drmRmMap(int fd, drm_handle_t handle);
|
|
extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, drm_handle_t handle);
|
|
|
|
extern int drmAddBufs(int fd, int count, int size, drmBufDescFlags flags, int agp_offset);
|
|
extern int drmMarkBufs(int fd, double low, double high);
|
|
extern int drmCreateContext(int fd, drm_context_t* handle);
|
|
extern int drmSetContextFlags(int fd, drm_context_t context, drm_context_tFlags flags);
|
|
extern int drmGetContextFlags(int fd, drm_context_t context, drm_context_tFlagsPtr flags);
|
|
extern int drmAddContextTag(int fd, drm_context_t context, void* tag);
|
|
extern int drmDelContextTag(int fd, drm_context_t context);
|
|
extern void* drmGetContextTag(int fd, drm_context_t context);
|
|
extern drm_context_t* drmGetReservedContextList(int fd, int* count);
|
|
extern void drmFreeReservedContextList(drm_context_t*);
|
|
extern int drmSwitchToContext(int fd, drm_context_t context);
|
|
extern int drmDestroyContext(int fd, drm_context_t handle);
|
|
extern int drmCreateDrawable(int fd, drm_drawable_t* handle);
|
|
extern int drmDestroyDrawable(int fd, drm_drawable_t handle);
|
|
extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle, drm_drawable_info_type_t type,
|
|
unsigned int num, void* data);
|
|
extern int drmCtlInstHandler(int fd, int irq);
|
|
extern int drmCtlUninstHandler(int fd);
|
|
extern int drmSetClientCap(int fd, uint64_t capability, uint64_t value);
|
|
|
|
extern int drmCrtcGetSequence(int fd, uint32_t crtcId, uint64_t* sequence, uint64_t* ns);
|
|
extern int drmCrtcQueueSequence(int fd, uint32_t crtcId, uint32_t flags, uint64_t sequence,
|
|
uint64_t* sequence_queued, uint64_t user_data);
|
|
/* General user-level programmer's API: authenticated client and/or X */
|
|
extern int drmMap(int fd, drm_handle_t handle, drmSize size, drmAddressPtr address);
|
|
extern int drmUnmap(drmAddress address, drmSize size);
|
|
extern drmBufInfoPtr drmGetBufInfo(int fd);
|
|
extern drmBufMapPtr drmMapBufs(int fd);
|
|
extern int drmUnmapBufs(drmBufMapPtr bufs);
|
|
extern int drmDMA(int fd, drmDMAReqPtr request);
|
|
extern int drmFreeBufs(int fd, int count, int* list);
|
|
extern int drmGetLock(int fd, drm_context_t context, drmLockFlags flags);
|
|
extern int drmUnlock(int fd, drm_context_t context);
|
|
extern int drmFinish(int fd, int context, drmLockFlags flags);
|
|
extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, drm_handle_t* handle);
|
|
|
|
/* AGP/GART support: X server (root) only */
|
|
extern int drmAgpAcquire(int fd);
|
|
extern int drmAgpRelease(int fd);
|
|
extern int drmAgpEnable(int fd, unsigned long mode);
|
|
extern int drmAgpAlloc(int fd, unsigned long size, unsigned long type, unsigned long* address,
|
|
drm_handle_t* handle);
|
|
extern int drmAgpFree(int fd, drm_handle_t handle);
|
|
extern int drmAgpBind(int fd, drm_handle_t handle, unsigned long offset);
|
|
extern int drmAgpUnbind(int fd, drm_handle_t handle);
|
|
|
|
/* AGP/GART info: authenticated client and/or X */
|
|
extern int drmAgpVersionMajor(int fd);
|
|
extern int drmAgpVersionMinor(int fd);
|
|
extern unsigned long drmAgpGetMode(int fd);
|
|
extern unsigned long drmAgpBase(int fd); /* Physical location */
|
|
extern unsigned long drmAgpSize(int fd); /* Bytes */
|
|
extern unsigned long drmAgpMemoryUsed(int fd);
|
|
extern unsigned long drmAgpMemoryAvail(int fd);
|
|
extern unsigned int drmAgpVendorId(int fd);
|
|
extern unsigned int drmAgpDeviceId(int fd);
|
|
|
|
/* PCI scatter/gather support: X server (root) only */
|
|
extern int drmScatterGatherAlloc(int fd, unsigned long size, drm_handle_t* handle);
|
|
extern int drmScatterGatherFree(int fd, drm_handle_t handle);
|
|
|
|
extern int drmWaitVBlank(int fd, drmVBlankPtr vbl);
|
|
|
|
/* Support routines */
|
|
extern void drmSetServerInfo(drmServerInfoPtr info);
|
|
extern int drmError(int err, const char* label);
|
|
extern void* drmMalloc(int size);
|
|
extern void drmFree(void* pt);
|
|
|
|
/* Hash table routines */
|
|
extern void* drmHashCreate(void);
|
|
extern int drmHashDestroy(void* t);
|
|
extern int drmHashLookup(void* t, unsigned long key, void** value);
|
|
extern int drmHashInsert(void* t, unsigned long key, void* value);
|
|
extern int drmHashDelete(void* t, unsigned long key);
|
|
extern int drmHashFirst(void* t, unsigned long* key, void** value);
|
|
extern int drmHashNext(void* t, unsigned long* key, void** value);
|
|
|
|
/* PRNG routines */
|
|
extern void* drmRandomCreate(unsigned long seed);
|
|
extern int drmRandomDestroy(void* state);
|
|
extern unsigned long drmRandom(void* state);
|
|
extern double drmRandomDouble(void* state);
|
|
|
|
/* Skip list routines */
|
|
|
|
extern void* drmSLCreate(void);
|
|
extern int drmSLDestroy(void* l);
|
|
extern int drmSLLookup(void* l, unsigned long key, void** value);
|
|
extern int drmSLInsert(void* l, unsigned long key, void* value);
|
|
extern int drmSLDelete(void* l, unsigned long key);
|
|
extern int drmSLNext(void* l, unsigned long* key, void** value);
|
|
extern int drmSLFirst(void* l, unsigned long* key, void** value);
|
|
extern void drmSLDump(void* l);
|
|
extern int drmSLLookupNeighbors(void* l, unsigned long key, unsigned long* prev_key,
|
|
void** prev_value, unsigned long* next_key, void** next_value);
|
|
|
|
extern int drmOpenOnce(void* unused, const char* BusID, int* newlyopened);
|
|
extern int drmOpenOnceWithType(const char* BusID, int* newlyopened, int type);
|
|
extern void drmCloseOnce(int fd);
|
|
extern void drmMsg(const char* format, ...) DRM_PRINTFLIKE(1, 2);
|
|
|
|
extern int drmSetMaster(int fd);
|
|
extern int drmDropMaster(int fd);
|
|
extern int drmIsMaster(int fd);
|
|
|
|
#define DRM_EVENT_CONTEXT_VERSION 4
|
|
|
|
typedef struct _drmEventContext {
|
|
/* This struct is versioned so we can add more pointers if we
|
|
* add more events. */
|
|
int version;
|
|
|
|
void (*vblank_handler)(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec,
|
|
void* user_data);
|
|
|
|
void (*page_flip_handler)(int fd, unsigned int sequence, unsigned int tv_sec,
|
|
unsigned int tv_usec, void* user_data);
|
|
|
|
void (*page_flip_handler2)(int fd, unsigned int sequence, unsigned int tv_sec,
|
|
unsigned int tv_usec, unsigned int crtc_id, void* user_data);
|
|
|
|
void (*sequence_handler)(int fd, uint64_t sequence, uint64_t ns, uint64_t user_data);
|
|
} drmEventContext, *drmEventContextPtr;
|
|
|
|
extern int drmHandleEvent(int fd, drmEventContextPtr evctx);
|
|
|
|
extern char* drmGetDeviceNameFromFd(int fd);
|
|
|
|
/* Improved version of drmGetDeviceNameFromFd which attributes for any type of
|
|
* device/node - card or renderD.
|
|
*/
|
|
extern char* drmGetDeviceNameFromFd2(int fd);
|
|
extern int drmGetNodeTypeFromFd(int fd);
|
|
|
|
/* Convert between GEM handles and DMA-BUF file descriptors.
|
|
*
|
|
* Warning: since GEM handles are not reference-counted and are unique per
|
|
* DRM file description, the caller is expected to perform its own reference
|
|
* counting. drmPrimeFDToHandle is guaranteed to return the same handle for
|
|
* different FDs if they reference the same underlying buffer object. This
|
|
* could even be a buffer object originally created on the same DRM FD.
|
|
*
|
|
* When sharing a DRM FD with an API such as EGL or GBM, the caller must not
|
|
* use drmPrimeHandleToFD nor drmPrimeFDToHandle. A single user-space
|
|
* reference-counting implementation is necessary to avoid double-closing GEM
|
|
* handles.
|
|
*
|
|
* Two processes can't share the same DRM FD and both use it to create or
|
|
* import GEM handles, even when using a single user-space reference-counting
|
|
* implementation like GBM, because GBM doesn't share its state between
|
|
* processes.
|
|
*/
|
|
extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int* prime_fd);
|
|
extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t* handle);
|
|
|
|
extern int drmCloseBufferHandle(int fd, uint32_t handle);
|
|
|
|
extern char* drmGetPrimaryDeviceNameFromFd(int fd);
|
|
extern char* drmGetRenderDeviceNameFromFd(int fd);
|
|
|
|
#define DRM_BUS_PCI 0
|
|
#define DRM_BUS_USB 1
|
|
#define DRM_BUS_PLATFORM 2
|
|
#define DRM_BUS_HOST1X 3
|
|
|
|
typedef struct _drmPciBusInfo {
|
|
uint16_t domain;
|
|
uint8_t bus;
|
|
uint8_t dev;
|
|
uint8_t func;
|
|
} drmPciBusInfo, *drmPciBusInfoPtr;
|
|
|
|
typedef struct _drmPciDeviceInfo {
|
|
uint16_t vendor_id;
|
|
uint16_t device_id;
|
|
uint16_t subvendor_id;
|
|
uint16_t subdevice_id;
|
|
uint8_t revision_id;
|
|
} drmPciDeviceInfo, *drmPciDeviceInfoPtr;
|
|
|
|
typedef struct _drmUsbBusInfo {
|
|
uint8_t bus;
|
|
uint8_t dev;
|
|
} drmUsbBusInfo, *drmUsbBusInfoPtr;
|
|
|
|
typedef struct _drmUsbDeviceInfo {
|
|
uint16_t vendor;
|
|
uint16_t product;
|
|
} drmUsbDeviceInfo, *drmUsbDeviceInfoPtr;
|
|
|
|
#define DRM_PLATFORM_DEVICE_NAME_LEN 512
|
|
|
|
typedef struct _drmPlatformBusInfo {
|
|
char fullname[DRM_PLATFORM_DEVICE_NAME_LEN];
|
|
} drmPlatformBusInfo, *drmPlatformBusInfoPtr;
|
|
|
|
typedef struct _drmPlatformDeviceInfo {
|
|
char** compatible; /* NULL terminated list of compatible strings */
|
|
} drmPlatformDeviceInfo, *drmPlatformDeviceInfoPtr;
|
|
|
|
#define DRM_HOST1X_DEVICE_NAME_LEN 512
|
|
|
|
typedef struct _drmHost1xBusInfo {
|
|
char fullname[DRM_HOST1X_DEVICE_NAME_LEN];
|
|
} drmHost1xBusInfo, *drmHost1xBusInfoPtr;
|
|
|
|
typedef struct _drmHost1xDeviceInfo {
|
|
char** compatible; /* NULL terminated list of compatible strings */
|
|
} drmHost1xDeviceInfo, *drmHost1xDeviceInfoPtr;
|
|
|
|
typedef struct _drmDevice {
|
|
char** nodes; /* DRM_NODE_MAX sized array */
|
|
int available_nodes; /* DRM_NODE_* bitmask */
|
|
int bustype;
|
|
union {
|
|
drmPciBusInfoPtr pci;
|
|
drmUsbBusInfoPtr usb;
|
|
drmPlatformBusInfoPtr platform;
|
|
drmHost1xBusInfoPtr host1x;
|
|
} businfo;
|
|
union {
|
|
drmPciDeviceInfoPtr pci;
|
|
drmUsbDeviceInfoPtr usb;
|
|
drmPlatformDeviceInfoPtr platform;
|
|
drmHost1xDeviceInfoPtr host1x;
|
|
} deviceinfo;
|
|
} drmDevice, *drmDevicePtr;
|
|
|
|
extern int drmGetDevice(int fd, drmDevicePtr* device);
|
|
extern void drmFreeDevice(drmDevicePtr* device);
|
|
|
|
extern int drmGetDevices(drmDevicePtr devices[], int max_devices);
|
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extern void drmFreeDevices(drmDevicePtr devices[], int count);
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#define DRM_DEVICE_GET_PCI_REVISION (1 << 0)
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extern int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr* device);
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extern int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices);
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extern int drmGetDeviceFromDevId(dev_t dev_id, uint32_t flags, drmDevicePtr* device);
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/**
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* Get the node type (DRM_NODE_PRIMARY or DRM_NODE_RENDER) from a device ID.
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*
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* Returns negative errno on error.
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*/
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extern int drmGetNodeTypeFromDevId(dev_t devid);
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/**
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* Check if two drmDevice pointers represent the same DRM device.
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*
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* Returns 1 if the devices are equal, 0 otherwise.
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*/
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extern int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b);
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extern int drmSyncobjCreate(int fd, uint32_t flags, uint32_t* handle);
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extern int drmSyncobjDestroy(int fd, uint32_t handle);
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extern int drmSyncobjHandleToFD(int fd, uint32_t handle, int* obj_fd);
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extern int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t* handle);
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extern int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd);
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extern int drmSyncobjExportSyncFile(int fd, uint32_t handle, int* sync_file_fd);
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extern int drmSyncobjWait(int fd, uint32_t* handles, unsigned num_handles, int64_t timeout_nsec,
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unsigned flags, uint32_t* first_signaled);
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extern int drmSyncobjReset(int fd, const uint32_t* handles, uint32_t handle_count);
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extern int drmSyncobjSignal(int fd, const uint32_t* handles, uint32_t handle_count);
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extern int drmSyncobjTimelineSignal(int fd, const uint32_t* handles, uint64_t* points,
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uint32_t handle_count);
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extern int drmSyncobjTimelineWait(int fd, uint32_t* handles, uint64_t* points, unsigned num_handles,
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int64_t timeout_nsec, unsigned flags, uint32_t* first_signaled);
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extern int drmSyncobjQuery(int fd, uint32_t* handles, uint64_t* points, uint32_t handle_count);
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extern int drmSyncobjQuery2(int fd, uint32_t* handles, uint64_t* points, uint32_t handle_count,
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uint32_t flags);
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extern int drmSyncobjTransfer(int fd, uint32_t dst_handle, uint64_t dst_point, uint32_t src_handle,
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uint64_t src_point, uint32_t flags);
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extern int drmSyncobjEventfd(int fd, uint32_t handle, uint64_t point, int ev_fd, uint32_t flags);
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extern char* drmGetFormatModifierVendor(uint64_t modifier);
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extern char* drmGetFormatModifierName(uint64_t modifier);
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extern char* drmGetFormatName(uint32_t format);
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#ifndef fourcc_mod_get_vendor
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#define fourcc_mod_get_vendor(modifier) (((modifier) >> 56) & 0xff)
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#endif
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#if defined(__cplusplus)
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}
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#endif
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#endif
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