diff options
Diffstat (limited to 'xf86drm.h')
| -rw-r--r-- | xf86drm.h | 978 |
1 files changed, 978 insertions, 0 deletions
diff --git a/xf86drm.h b/xf86drm.h new file mode 100644 index 0000000..2cb1415 --- /dev/null +++ b/xf86drm.h @@ -0,0 +1,978 @@ +/** + * \file xf86drm.h + * OS-independent header for DRM user-level library interface. + * + * \author Rickard E. (Rik) Faith <faith@valinux.com> + */ + +/* + * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + */ + +#ifndef _XF86DRM_H_ +#define _XF86DRM_H_ + +#include <stdarg.h> +#include <sys/types.h> +#include <stdint.h> +#include <drm.h> + +#if defined(__cplusplus) +extern "C" { +#endif + +#ifndef DRM_MAX_MINOR +#define DRM_MAX_MINOR 64 /* deprecated */ +#endif + +#if defined(__linux__) + +#define DRM_IOCTL_NR(n) _IOC_NR(n) +#define DRM_IOC_VOID _IOC_NONE +#define DRM_IOC_READ _IOC_READ +#define DRM_IOC_WRITE _IOC_WRITE +#define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE +#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) + +#else /* One of the *BSDs */ + +#include <sys/ioccom.h> +#define DRM_IOCTL_NR(n) ((n) & 0xff) +#define DRM_IOC_VOID IOC_VOID +#define DRM_IOC_READ IOC_OUT +#define DRM_IOC_WRITE IOC_IN +#define DRM_IOC_READWRITE IOC_INOUT +#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) + +#endif + + /* Defaults, if nothing set in xf86config */ +#define DRM_DEV_UID 0 +#define DRM_DEV_GID 0 +/* Default /dev/dri directory permissions 0755 */ +#define DRM_DEV_DIRMODE \ + (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) +#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) + +#ifdef __OpenBSD__ +#define DRM_DIR_NAME "/dev" +#define DRM_PRIMARY_MINOR_NAME "drm" +#define DRM_CONTROL_MINOR_NAME "drmC" /* deprecated */ +#define DRM_RENDER_MINOR_NAME "drmR" +#else +#define DRM_DIR_NAME "/dev/dri" +#define DRM_PRIMARY_MINOR_NAME "card" +#define DRM_CONTROL_MINOR_NAME "controlD" /* deprecated */ +#define DRM_RENDER_MINOR_NAME "renderD" +#define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */ +#endif + +#define DRM_DEV_NAME "%s/" DRM_PRIMARY_MINOR_NAME "%d" +#define DRM_CONTROL_DEV_NAME "%s/" DRM_CONTROL_MINOR_NAME "%d" /* deprecated */ +#define DRM_RENDER_DEV_NAME "%s/" DRM_RENDER_MINOR_NAME "%d" + +#define DRM_NODE_NAME_MAX \ + (sizeof(DRM_DIR_NAME) + 1 /* slash */ \ + + MAX3(sizeof(DRM_PRIMARY_MINOR_NAME), \ + sizeof(DRM_CONTROL_MINOR_NAME), \ + sizeof(DRM_RENDER_MINOR_NAME)) \ + + sizeof("1048575") /* highest possible node number 2^MINORBITS - 1 */ \ + + 1) /* NULL-terminator */ + +#define DRM_ERR_NO_DEVICE (-1001) +#define DRM_ERR_NO_ACCESS (-1002) +#define DRM_ERR_NOT_ROOT (-1003) +#define DRM_ERR_INVALID (-1004) +#define DRM_ERR_NO_FD (-1005) + +#define DRM_AGP_NO_HANDLE 0 + +typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */ +typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */ + +#if (__GNUC__ >= 3) +#define DRM_PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a))) +#else +#define DRM_PRINTFLIKE(f, a) +#endif + +typedef struct _drmServerInfo { + int (*debug_print)(const char *format, va_list ap) DRM_PRINTFLIKE(1,0); + int (*load_module)(const char *name); + void (*get_perms)(gid_t *, mode_t *); +} drmServerInfo, *drmServerInfoPtr; + +typedef struct drmHashEntry { + int fd; + void (*f)(int, void *, void *); + void *tagTable; +} drmHashEntry; + +extern int drmIoctl(int fd, unsigned long request, void *arg); +extern void *drmGetHashTable(void); +extern drmHashEntry *drmGetEntry(int fd); + +/** + * Driver version information. + * + * \sa drmGetVersion() and drmSetVersion(). + */ +typedef struct _drmVersion { + int version_major; /**< Major version */ + int version_minor; /**< Minor version */ + int version_patchlevel; /**< Patch level */ + int name_len; /**< Length of name buffer */ + char *name; /**< Name of driver */ + int date_len; /**< Length of date buffer */ + char *date; /**< User-space buffer to hold date */ + int desc_len; /**< Length of desc buffer */ + char *desc; /**< User-space buffer to hold desc */ +} drmVersion, *drmVersionPtr; + +typedef struct _drmStats { + unsigned long count; /**< Number of data */ + struct { + unsigned long value; /**< Value from kernel */ + const char *long_format; /**< Suggested format for long_name */ + const char *long_name; /**< Long name for value */ + const char *rate_format; /**< Suggested format for rate_name */ + const char *rate_name; /**< Short name for value per second */ + int isvalue; /**< True if value (vs. counter) */ + const char *mult_names; /**< Multiplier names (e.g., "KGM") */ + int mult; /**< Multiplier value (e.g., 1024) */ + int verbose; /**< Suggest only in verbose output */ + } data[15]; +} drmStatsT; + + + /* All of these enums *MUST* match with the + kernel implementation -- so do *NOT* + change them! (The drmlib implementation + will just copy the flags instead of + translating them.) */ +typedef enum { + DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */ + DRM_REGISTERS = 1, /**< no caching, no core dump */ + DRM_SHM = 2, /**< shared, cached */ + DRM_AGP = 3, /**< AGP/GART */ + DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */ + DRM_CONSISTENT = 5 /**< PCI consistent */ +} drmMapType; + +typedef enum { + DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */ + DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */ + DRM_LOCKED = 0x0004, /**< Physical pages locked */ + DRM_KERNEL = 0x0008, /**< Kernel requires access */ + DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */ + DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */ + DRM_REMOVABLE = 0x0040 /**< Removable mapping */ +} drmMapFlags; + +/** + * \warning These values *MUST* match drm.h + */ +typedef enum { + /** \name Flags for DMA buffer dispatch */ + /*@{*/ + DRM_DMA_BLOCK = 0x01, /**< + * Block until buffer dispatched. + * + * \note the buffer may not yet have been + * processed by the hardware -- getting a + * hardware lock with the hardware quiescent + * will ensure that the buffer has been + * processed. + */ + DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ + DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ + /*@}*/ + + /** \name Flags for DMA buffer request */ + /*@{*/ + DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ + DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ + DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ + /*@}*/ +} drmDMAFlags; + +typedef enum { + DRM_PAGE_ALIGN = 0x01, + DRM_AGP_BUFFER = 0x02, + DRM_SG_BUFFER = 0x04, + DRM_FB_BUFFER = 0x08, + DRM_PCI_BUFFER_RO = 0x10 +} drmBufDescFlags; + +typedef enum { + DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ + DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ + DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ + DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ + /* These *HALT* flags aren't supported yet + -- they will be used to support the + full-screen DGA-like mode. */ + DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ + DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ +} drmLockFlags; + +typedef enum { + DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and + never swapped. */ + DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */ +} drm_context_tFlags, *drm_context_tFlagsPtr; + +typedef struct _drmBufDesc { + int count; /**< Number of buffers of this size */ + int size; /**< Size in bytes */ + int low_mark; /**< Low water mark */ + int high_mark; /**< High water mark */ +} drmBufDesc, *drmBufDescPtr; + +typedef struct _drmBufInfo { + int count; /**< Number of buffers described in list */ + drmBufDescPtr list; /**< List of buffer descriptions */ +} drmBufInfo, *drmBufInfoPtr; + +typedef struct _drmBuf { + int idx; /**< Index into the master buffer list */ + int total; /**< Buffer size */ + int used; /**< Amount of buffer in use (for DMA) */ + drmAddress address; /**< Address */ +} drmBuf, *drmBufPtr; + +/** + * Buffer mapping information. + * + * Used by drmMapBufs() and drmUnmapBufs() to store information about the + * mapped buffers. + */ +typedef struct _drmBufMap { + int count; /**< Number of buffers mapped */ + drmBufPtr list; /**< Buffers */ +} drmBufMap, *drmBufMapPtr; + +typedef struct _drmLock { + volatile unsigned int lock; + char padding[60]; + /* This is big enough for most current (and future?) architectures: + DEC Alpha: 32 bytes + Intel Merced: ? + Intel P5/PPro/PII/PIII: 32 bytes + Intel StrongARM: 32 bytes + Intel i386/i486: 16 bytes + MIPS: 32 bytes (?) + Motorola 68k: 16 bytes + Motorola PowerPC: 32 bytes + Sun SPARC: 32 bytes + */ +} drmLock, *drmLockPtr; + +/** + * Indices here refer to the offset into + * list in drmBufInfo + */ +typedef struct _drmDMAReq { + drm_context_t context; /**< Context handle */ + int send_count; /**< Number of buffers to send */ + int *send_list; /**< List of handles to buffers */ + int *send_sizes; /**< Lengths of data to send, in bytes */ + drmDMAFlags flags; /**< Flags */ + int request_count; /**< Number of buffers requested */ + int request_size; /**< Desired size of buffers requested */ + int *request_list; /**< Buffer information */ + int *request_sizes; /**< Minimum acceptable sizes */ + int granted_count; /**< Number of buffers granted at this size */ +} drmDMAReq, *drmDMAReqPtr; + +typedef struct _drmRegion { + drm_handle_t handle; + unsigned int offset; + drmSize size; + drmAddress map; +} drmRegion, *drmRegionPtr; + +typedef struct _drmTextureRegion { + unsigned char next; + unsigned char prev; + unsigned char in_use; + unsigned char padding; /**< Explicitly pad this out */ + unsigned int age; +} drmTextureRegion, *drmTextureRegionPtr; + + +typedef enum { + DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ + DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ + /* bits 1-6 are reserved for high crtcs */ + DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e, + DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */ + DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ + DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ + DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ + DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */ +} drmVBlankSeqType; +#define DRM_VBLANK_HIGH_CRTC_SHIFT 1 + +typedef struct _drmVBlankReq { + drmVBlankSeqType type; + unsigned int sequence; + unsigned long signal; +} drmVBlankReq, *drmVBlankReqPtr; + +typedef struct _drmVBlankReply { + drmVBlankSeqType type; + unsigned int sequence; + long tval_sec; + long tval_usec; +} drmVBlankReply, *drmVBlankReplyPtr; + +typedef union _drmVBlank { + drmVBlankReq request; + drmVBlankReply reply; +} drmVBlank, *drmVBlankPtr; + +typedef struct _drmSetVersion { + int drm_di_major; + int drm_di_minor; + int drm_dd_major; + int drm_dd_minor; +} drmSetVersion, *drmSetVersionPtr; + +#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock) + +#define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */ +#define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */ + +#if defined(__GNUC__) && (__GNUC__ >= 2) +# if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) + /* Reflect changes here to drmP.h */ +#define DRM_CAS(lock,old,new,__ret) \ + do { \ + int __dummy; /* Can't mark eax as clobbered */ \ + __asm__ __volatile__( \ + "lock ; cmpxchg %4,%1\n\t" \ + "setnz %0" \ + : "=d" (__ret), \ + "=m" (__drm_dummy_lock(lock)), \ + "=a" (__dummy) \ + : "2" (old), \ + "r" (new)); \ + } while (0) + +#elif defined(__alpha__) + +#define DRM_CAS(lock, old, new, ret) \ + do { \ + int tmp, old32; \ + __asm__ __volatile__( \ + " addl $31, %5, %3\n" \ + "1: ldl_l %0, %2\n" \ + " cmpeq %0, %3, %1\n" \ + " beq %1, 2f\n" \ + " mov %4, %0\n" \ + " stl_c %0, %2\n" \ + " beq %0, 3f\n" \ + " mb\n" \ + "2: cmpeq %1, 0, %1\n" \ + ".subsection 2\n" \ + "3: br 1b\n" \ + ".previous" \ + : "=&r"(tmp), "=&r"(ret), \ + "=m"(__drm_dummy_lock(lock)), \ + "=&r"(old32) \ + : "r"(new), "r"(old) \ + : "memory"); \ + } while (0) + +#elif defined(__sparc__) + +#define DRM_CAS(lock,old,new,__ret) \ +do { register unsigned int __old __asm("o0"); \ + register unsigned int __new __asm("o1"); \ + register volatile unsigned int *__lock __asm("o2"); \ + __old = old; \ + __new = new; \ + __lock = (volatile unsigned int *)lock; \ + __asm__ __volatile__( \ + /*"cas [%2], %3, %0"*/ \ + ".word 0xd3e29008\n\t" \ + /*"membar #StoreStore | #StoreLoad"*/ \ + ".word 0x8143e00a" \ + : "=&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); +extern void drmFreeDevices(drmDevicePtr devices[], int count); + +#define DRM_DEVICE_GET_PCI_REVISION (1 << 0) +extern int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device); +extern int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices); + +extern int drmGetDeviceFromDevId(dev_t dev_id, uint32_t flags, drmDevicePtr *device); + +/** + * Get the node type (DRM_NODE_PRIMARY or DRM_NODE_RENDER) from a device ID. + * + * Returns negative errno on error. + */ +extern int drmGetNodeTypeFromDevId(dev_t devid); + +extern int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b); + +extern int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle); +extern int drmSyncobjDestroy(int fd, uint32_t handle); +extern int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd); +extern int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle); + +extern int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd); +extern int drmSyncobjExportSyncFile(int fd, uint32_t handle, int *sync_file_fd); +extern int drmSyncobjWait(int fd, uint32_t *handles, unsigned num_handles, + int64_t timeout_nsec, unsigned flags, + uint32_t *first_signaled); +extern int drmSyncobjReset(int fd, const uint32_t *handles, uint32_t handle_count); +extern int drmSyncobjSignal(int fd, const uint32_t *handles, uint32_t handle_count); +extern int drmSyncobjTimelineSignal(int fd, const uint32_t *handles, + uint64_t *points, uint32_t handle_count); +extern int drmSyncobjTimelineWait(int fd, uint32_t *handles, uint64_t *points, + unsigned num_handles, + int64_t timeout_nsec, unsigned flags, + uint32_t *first_signaled); +extern int drmSyncobjQuery(int fd, uint32_t *handles, uint64_t *points, + uint32_t handle_count); +extern int drmSyncobjQuery2(int fd, uint32_t *handles, uint64_t *points, + uint32_t handle_count, uint32_t flags); +extern int drmSyncobjTransfer(int fd, + uint32_t dst_handle, uint64_t dst_point, + uint32_t src_handle, uint64_t src_point, + uint32_t flags); +extern int drmSyncobjEventfd(int fd, uint32_t handle, uint64_t point, int ev_fd, + uint32_t flags); + +extern char * +drmGetFormatModifierVendor(uint64_t modifier); + +extern char * +drmGetFormatModifierName(uint64_t modifier); + +extern char * +drmGetFormatName(uint32_t format); + +#ifndef fourcc_mod_get_vendor +#define fourcc_mod_get_vendor(modifier) \ + (((modifier) >> 56) & 0xff) +#endif + +#if defined(__cplusplus) +} +#endif + +#endif |