* DEALINGS IN THE SOFTWARE.
*/
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#ifdef XFree86Server
-# include "xf86.h"
-# include "xf86_OSproc.h"
-# include "drm.h"
-# include "xf86_ansic.h"
-# define _DRM_MALLOC xalloc
-# define _DRM_FREE xfree
-# ifndef XFree86LOADER
-# include <sys/mman.h>
-# endif
-#else
-# include <stdio.h>
-# include <stdlib.h>
-# include <unistd.h>
-# include <string.h>
-# include <ctype.h>
-# include <fcntl.h>
-# include <errno.h>
-# include <signal.h>
-# include <sys/types.h>
-# include <sys/stat.h>
-# define stat_t struct stat
-# include <sys/ioctl.h>
-# include <sys/mman.h>
-# include <sys/time.h>
-# include <stdarg.h>
-# define _DRM_MALLOC malloc
-# define _DRM_FREE free
-# include "drm.h"
+#ifdef HAVE_CONFIG_H
+# include <config.h>
#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#define stat_t struct stat
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <stdarg.h>
/* Not all systems have MAP_FAILED defined */
#ifndef MAP_FAILED
#define DRM_MSG_VERBOSITY 3
+static drmServerInfoPtr drm_server_info;
+
+void drmSetServerInfo(drmServerInfoPtr info)
+{
+ drm_server_info = info;
+}
+
/**
* Output a message to stderr.
*
* \internal
* This function is a wrapper around vfprintf().
*/
+
+static int drmDebugPrint(const char *format, va_list ap)
+{
+ return vfprintf(stderr, format, ap);
+}
+
+static int (*drm_debug_print)(const char *format, va_list ap) = drmDebugPrint;
+
static void
drmMsg(const char *format, ...)
{
va_list ap;
-
-#ifndef XFree86Server
const char *env;
- if ((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose"))
-#endif
+ if (((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose")) || drm_server_info)
{
va_start(ap, format);
-#ifdef XFree86Server
- xf86VDrvMsgVerb(-1, X_NONE, DRM_MSG_VERBOSITY, format, ap);
-#else
- vfprintf(stderr, format, ap);
-#endif
+ if (drm_server_info) {
+ drm_server_info->debug_print(format,ap);
+ } else {
+ drm_debug_print(format, ap);
+ }
va_end(ap);
}
}
+void
+drmSetDebugMsgFunction(int (*debug_msg_ptr)(const char *format, va_list ap))
+{
+ drm_debug_print = debug_msg_ptr;
+}
+
static void *drmHashTable = NULL; /* Context switch callbacks */
-typedef struct drmHashEntry {
- int fd;
- void (*f)(int, void *, void *);
- void *tagTable;
-} drmHashEntry;
+void *drmGetHashTable(void)
+{
+ return drmHashTable;
+}
void *drmMalloc(int size)
{
void *pt;
- if ((pt = _DRM_MALLOC(size))) memset(pt, 0, size);
+ if ((pt = malloc(size)))
+ memset(pt, 0, size);
return pt;
}
void drmFree(void *pt)
{
- if (pt) _DRM_FREE(pt);
+ if (pt)
+ free(pt);
}
/* drmStrdup can't use strdup(3), since it doesn't call _DRM_MALLOC... */
if (!s)
return NULL;
- retval = _DRM_MALLOC(strlen(s)+1);
+ retval = malloc(strlen(s)+1);
if (!retval)
return NULL;
return st.st_rdev;
}
-static drmHashEntry *drmGetEntry(int fd)
+drmHashEntry *drmGetEntry(int fd)
{
unsigned long key = drmGetKeyFromFd(fd);
void *value;
drmHashEntry *entry;
- if (!drmHashTable) drmHashTable = drmHashCreate();
+ if (!drmHashTable)
+ drmHashTable = drmHashCreate();
if (drmHashLookup(drmHashTable, key, &value)) {
entry = drmMalloc(sizeof(*entry));
stat_t st;
char buf[64];
int fd;
- mode_t devmode = DRM_DEV_MODE;
+ mode_t devmode = DRM_DEV_MODE, serv_mode;
int isroot = !geteuid();
-#if defined(XFree86Server)
uid_t user = DRM_DEV_UID;
- gid_t group = DRM_DEV_GID;
-#endif
-
+ gid_t group = DRM_DEV_GID, serv_group;
+
sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor);
drmMsg("drmOpenDevice: node name is %s\n", buf);
-#if defined(XFree86Server)
- devmode = xf86ConfigDRI.mode ? xf86ConfigDRI.mode : DRM_DEV_MODE;
- devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH);
- group = (xf86ConfigDRI.group >= 0) ? xf86ConfigDRI.group : DRM_DEV_GID;
-#endif
+ if (drm_server_info) {
+ drm_server_info->get_perms(&serv_group, &serv_mode);
+ devmode = serv_mode ? serv_mode : DRM_DEV_MODE;
+ devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH);
+ group = (serv_group >= 0) ? serv_group : DRM_DEV_GID;
+ }
if (stat(DRM_DIR_NAME, &st)) {
- if (!isroot) return DRM_ERR_NOT_ROOT;
+ if (!isroot)
+ return DRM_ERR_NOT_ROOT;
mkdir(DRM_DIR_NAME, DRM_DEV_DIRMODE);
chown(DRM_DIR_NAME, 0, 0); /* root:root */
chmod(DRM_DIR_NAME, DRM_DEV_DIRMODE);
/* Check if the device node exists and create it if necessary. */
if (stat(buf, &st)) {
- if (!isroot) return DRM_ERR_NOT_ROOT;
+ if (!isroot)
+ return DRM_ERR_NOT_ROOT;
remove(buf);
mknod(buf, S_IFCHR | devmode, dev);
}
-#if defined(XFree86Server)
- chown(buf, user, group);
- chmod(buf, devmode);
-#endif
+
+ if (drm_server_info) {
+ chown(buf, user, group);
+ chmod(buf, devmode);
+ }
fd = open(buf, O_RDWR, 0);
drmMsg("drmOpenDevice: open result is %d, (%s)\n",
fd, fd < 0 ? strerror(errno) : "OK");
- if (fd >= 0) return fd;
+ if (fd >= 0)
+ return fd;
/* Check if the device node is not what we expect it to be, and recreate it
* and try again if so.
*/
if (st.st_rdev != dev) {
- if (!isroot) return DRM_ERR_NOT_ROOT;
+ if (!isroot)
+ return DRM_ERR_NOT_ROOT;
remove(buf);
mknod(buf, S_IFCHR | devmode, dev);
-#if defined(XFree86Server)
- chown(buf, user, group);
- chmod(buf, devmode);
-#endif
+ if (drm_server_info) {
+ chown(buf, user, group);
+ chmod(buf, devmode);
+ }
}
fd = open(buf, O_RDWR, 0);
drmMsg("drmOpenDevice: open result is %d, (%s)\n",
fd, fd < 0 ? strerror(errno) : "OK");
- if (fd >= 0) return fd;
+ if (fd >= 0)
+ return fd;
drmMsg("drmOpenDevice: Open failed\n");
remove(buf);
int fd;
char buf[64];
- if (create) return drmOpenDevice(makedev(DRM_MAJOR, minor), minor);
+ if (create)
+ return drmOpenDevice(makedev(DRM_MAJOR, minor), minor);
sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor);
- if ((fd = open(buf, O_RDWR, 0)) >= 0) return fd;
+ if ((fd = open(buf, O_RDWR, 0)) >= 0)
+ return fd;
return -errno;
}
if ((fd = drmOpenMinor(0, 1)) < 0) {
#ifdef __linux__
/* Try proc for backward Linux compatibility */
- if (!access("/proc/dri/0", R_OK)) return 1;
+ if (!access("/proc/dri/0", R_OK))
+ return 1;
#endif
return 0;
}
drmFreeBusid(buf);
return fd;
}
- if (buf) drmFreeBusid(buf);
+ if (buf)
+ drmFreeBusid(buf);
close(fd);
}
}
char * id;
if (!drmAvailable()) {
-#if !defined(XFree86Server)
- return -1;
-#else
- /* try to load the kernel module now */
- if (!xf86LoadKernelModule(name)) {
- ErrorF("[drm] failed to load kernel module \"%s\"\n",
- name);
- return -1;
- }
-#endif
+ if (!drm_server_info) {
+ return -1;
+ }
+ else {
+ /* try to load the kernel module now */
+ if (!drm_server_info->load_module(name)) {
+ drmMsg("[drm] failed to load kernel module \"%s\"\n", name);
+ return -1;
+ }
+ }
}
/*
*/
int drmOpen(const char *name, const char *busid)
{
-#ifdef XFree86Server
- if (!drmAvailable() && name != NULL) {
+ if (!drmAvailable() && name != NULL && drm_server_info) {
/* try to load the kernel */
- if (!xf86LoadKernelModule(name)) {
- ErrorF("[drm] failed to load kernel module \"%s\"\n",
- name);
+ if (!drm_server_info->load_module(name)) {
+ drmMsg("[drm] failed to load kernel module \"%s\"\n", name);
return -1;
}
}
-#endif
if (busid) {
- int fd;
-
- fd = drmOpenByBusid(busid);
+ int fd = drmOpenByBusid(busid);
if (fd >= 0)
return fd;
}
*/
void drmFreeVersion(drmVersionPtr v)
{
- if (!v) return;
- if (v->name) drmFree(v->name);
- if (v->date) drmFree(v->date);
- if (v->desc) drmFree(v->desc);
+ if (!v)
+ return;
+ drmFree(v->name);
+ drmFree(v->date);
+ drmFree(v->desc);
drmFree(v);
}
*/
static void drmFreeKernelVersion(drm_version_t *v)
{
- if (!v) return;
- if (v->name) drmFree(v->name);
- if (v->date) drmFree(v->date);
- if (v->desc) drmFree(v->desc);
+ if (!v)
+ return;
+ drmFree(v->name);
+ drmFree(v->date);
+ drmFree(v->desc);
drmFree(v);
}
drm_version_t *version = drmMalloc(sizeof(*version));
/* Version history:
+ * NOTE THIS MUST NOT GO ABOVE VERSION 1.X due to drivers needing it
* revision 1.0.x = original DRM interface with no drmGetLibVersion
* entry point and many drm<Device> extensions
* revision 1.1.x = added drmCommand entry points for device extensions
* added drmGetLibVersion to identify libdrm.a version
* revision 1.2.x = added drmSetInterfaceVersion
* modified drmOpen to handle both busid and name
+ * revision 1.3.x = added server + memory manager
*/
version->version_major = 1;
- version->version_minor = 2;
+ version->version_minor = 3;
version->version_patchlevel = 0;
return (drmVersionPtr)version;
u.unique_len = 0;
u.unique = NULL;
- if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) return NULL;
+ if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u))
+ return NULL;
u.unique = drmMalloc(u.unique_len + 1);
- if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) return NULL;
+ if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u))
+ return NULL;
u.unique[u.unique_len] = '\0';
return u.unique;
drm_auth_t auth;
*magic = 0;
- if (ioctl(fd, DRM_IOCTL_GET_MAGIC, &auth)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_GET_MAGIC, &auth))
+ return -errno;
*magic = auth.magic;
return 0;
}
drm_auth_t auth;
auth.magic = magic;
- if (ioctl(fd, DRM_IOCTL_AUTH_MAGIC, &auth)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AUTH_MAGIC, &auth))
+ return -errno;
return 0;
}
map.handle = 0;
map.type = type;
map.flags = flags;
- if (ioctl(fd, DRM_IOCTL_ADD_MAP, &map)) return -errno;
- if (handle) *handle = (drm_handle_t)map.handle;
+ if (ioctl(fd, DRM_IOCTL_ADD_MAP, &map))
+ return -errno;
+ if (handle)
+ *handle = (drm_handle_t)map.handle;
return 0;
}
map.handle = (void *)handle;
- if(ioctl(fd, DRM_IOCTL_RM_MAP, &map)) return -errno;
+ if(ioctl(fd, DRM_IOCTL_RM_MAP, &map))
+ return -errno;
return 0;
}
request.flags = flags;
request.agp_start = agp_offset;
- if (ioctl(fd, DRM_IOCTL_ADD_BUFS, &request)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_ADD_BUFS, &request))
+ return -errno;
return request.count;
}
info.count = 0;
info.list = NULL;
- if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info)) return -EINVAL;
+ if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info))
+ return -EINVAL;
- if (!info.count) return -EINVAL;
+ if (!info.count)
+ return -EINVAL;
if (!(info.list = drmMalloc(info.count * sizeof(*info.list))))
return -ENOMEM;
request.count = count;
request.list = list;
- if (ioctl(fd, DRM_IOCTL_FREE_BUFS, &request)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_FREE_BUFS, &request))
+ return -errno;
return 0;
}
{
static unsigned long pagesize_mask = 0;
- if (fd < 0) return -EINVAL;
+ if (fd < 0)
+ return -EINVAL;
if (!pagesize_mask)
pagesize_mask = getpagesize() - 1;
size = (size + pagesize_mask) & ~pagesize_mask;
*address = mmap(0, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, handle);
- if (*address == MAP_FAILED) return -errno;
+ if (*address == MAP_FAILED)
+ return -errno;
return 0;
}
info.count = 0;
info.list = NULL;
- if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info)) return NULL;
+ if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info))
+ return NULL;
if (info.count) {
if (!(info.list = drmMalloc(info.count * sizeof(*info.list))))
bufs.count = 0;
bufs.list = NULL;
bufs.virtual = NULL;
- if (ioctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) return NULL;
+ if (ioctl(fd, DRM_IOCTL_MAP_BUFS, &bufs))
+ return NULL;
- if (!bufs.count) return NULL;
+ if (!bufs.count)
+ return NULL;
if (!(bufs.list = drmMalloc(bufs.count * sizeof(*bufs.list))))
return NULL;
res.count = 0;
res.contexts = NULL;
- if (ioctl(fd, DRM_IOCTL_RES_CTX, &res)) return NULL;
+ if (ioctl(fd, DRM_IOCTL_RES_CTX, &res))
+ return NULL;
- if (!res.count) return NULL;
+ if (!res.count)
+ return NULL;
- if (!(list = drmMalloc(res.count * sizeof(*list)))) return NULL;
+ if (!(list = drmMalloc(res.count * sizeof(*list))))
+ return NULL;
if (!(retval = drmMalloc(res.count * sizeof(*retval)))) {
drmFree(list);
return NULL;
}
res.contexts = list;
- if (ioctl(fd, DRM_IOCTL_RES_CTX, &res)) return NULL;
+ if (ioctl(fd, DRM_IOCTL_RES_CTX, &res))
+ return NULL;
- for (i = 0; i < res.count; i++) retval[i] = list[i].handle;
+ for (i = 0; i < res.count; i++)
+ retval[i] = list[i].handle;
drmFree(list);
*count = res.count;
drm_ctx_t ctx;
ctx.flags = 0; /* Modified with functions below */
- if (ioctl(fd, DRM_IOCTL_ADD_CTX, &ctx)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_ADD_CTX, &ctx))
+ return -errno;
*handle = ctx.handle;
return 0;
}
drm_ctx_t ctx;
ctx.handle = context;
- if (ioctl(fd, DRM_IOCTL_SWITCH_CTX, &ctx)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_SWITCH_CTX, &ctx))
+ return -errno;
return 0;
}
*/
ctx.handle = context;
ctx.flags = 0;
- if (flags & DRM_CONTEXT_PRESERVED) ctx.flags |= _DRM_CONTEXT_PRESERVED;
- if (flags & DRM_CONTEXT_2DONLY) ctx.flags |= _DRM_CONTEXT_2DONLY;
- if (ioctl(fd, DRM_IOCTL_MOD_CTX, &ctx)) return -errno;
+ if (flags & DRM_CONTEXT_PRESERVED)
+ ctx.flags |= _DRM_CONTEXT_PRESERVED;
+ if (flags & DRM_CONTEXT_2DONLY)
+ ctx.flags |= _DRM_CONTEXT_2DONLY;
+ if (ioctl(fd, DRM_IOCTL_MOD_CTX, &ctx))
+ return -errno;
return 0;
}
drm_ctx_t ctx;
ctx.handle = context;
- if (ioctl(fd, DRM_IOCTL_GET_CTX, &ctx)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_GET_CTX, &ctx))
+ return -errno;
*flags = 0;
- if (ctx.flags & _DRM_CONTEXT_PRESERVED) *flags |= DRM_CONTEXT_PRESERVED;
- if (ctx.flags & _DRM_CONTEXT_2DONLY) *flags |= DRM_CONTEXT_2DONLY;
+ if (ctx.flags & _DRM_CONTEXT_PRESERVED)
+ *flags |= DRM_CONTEXT_PRESERVED;
+ if (ctx.flags & _DRM_CONTEXT_2DONLY)
+ *flags |= DRM_CONTEXT_2DONLY;
return 0;
}
{
drm_ctx_t ctx;
ctx.handle = handle;
- if (ioctl(fd, DRM_IOCTL_RM_CTX, &ctx)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_RM_CTX, &ctx))
+ return -errno;
return 0;
}
int drmCreateDrawable(int fd, drm_drawable_t *handle)
{
drm_draw_t draw;
- if (ioctl(fd, DRM_IOCTL_ADD_DRAW, &draw)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_ADD_DRAW, &draw))
+ return -errno;
*handle = draw.handle;
return 0;
}
{
drm_draw_t draw;
draw.handle = handle;
- if (ioctl(fd, DRM_IOCTL_RM_DRAW, &draw)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_RM_DRAW, &draw))
+ return -errno;
+ return 0;
+}
+
+int drmUpdateDrawableInfo(int fd, drm_drawable_t handle,
+ drm_drawable_info_type_t type, unsigned int num,
+ void *data)
+{
+ drm_update_draw_t update;
+
+ update.handle = handle;
+ update.type = type;
+ update.num = num;
+ update.data = (unsigned long long)(unsigned long)data;
+
+ if (ioctl(fd, DRM_IOCTL_UPDATE_DRAW, &update))
+ return -errno;
+
return 0;
}
*/
int drmAgpAcquire(int fd)
{
- if (ioctl(fd, DRM_IOCTL_AGP_ACQUIRE, NULL)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_ACQUIRE, NULL))
+ return -errno;
return 0;
}
*/
int drmAgpRelease(int fd)
{
- if (ioctl(fd, DRM_IOCTL_AGP_RELEASE, NULL)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_RELEASE, NULL))
+ return -errno;
return 0;
}
drm_agp_mode_t m;
m.mode = mode;
- if (ioctl(fd, DRM_IOCTL_AGP_ENABLE, &m)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_ENABLE, &m))
+ return -errno;
return 0;
}
b.size = size;
b.handle = 0;
b.type = type;
- if (ioctl(fd, DRM_IOCTL_AGP_ALLOC, &b)) return -errno;
- if (address != 0UL) *address = b.physical;
+ if (ioctl(fd, DRM_IOCTL_AGP_ALLOC, &b))
+ return -errno;
+ if (address != 0UL)
+ *address = b.physical;
*handle = b.handle;
return 0;
}
b.size = 0;
b.handle = handle;
- if (ioctl(fd, DRM_IOCTL_AGP_FREE, &b)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_FREE, &b))
+ return -errno;
return 0;
}
b.handle = handle;
b.offset = offset;
- if (ioctl(fd, DRM_IOCTL_AGP_BIND, &b)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_BIND, &b))
+ return -errno;
return 0;
}
b.handle = handle;
b.offset = 0;
- if (ioctl(fd, DRM_IOCTL_AGP_UNBIND, &b)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_UNBIND, &b))
+ return -errno;
return 0;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return -errno;
return i.agp_version_major;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return -errno;
return i.agp_version_minor;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return 0;
return i.mode;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return 0;
return i.aperture_base;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return 0;
return i.aperture_size;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return 0;
return i.memory_used;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return 0;
return i.memory_allowed;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return 0;
return i.id_vendor;
}
{
drm_agp_info_t i;
- if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
+ if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i))
+ return 0;
return i.id_device;
}
*handle = 0;
sg.size = size;
sg.handle = 0;
- if (ioctl(fd, DRM_IOCTL_SG_ALLOC, &sg)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_SG_ALLOC, &sg))
+ return -errno;
*handle = sg.handle;
return 0;
}
sg.size = 0;
sg.handle = handle;
- if (ioctl(fd, DRM_IOCTL_SG_FREE, &sg)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_SG_FREE, &sg))
+ return -errno;
return 0;
}
int drmError(int err, const char *label)
{
switch (err) {
- case DRM_ERR_NO_DEVICE: fprintf(stderr, "%s: no device\n", label); break;
- case DRM_ERR_NO_ACCESS: fprintf(stderr, "%s: no access\n", label); break;
- case DRM_ERR_NOT_ROOT: fprintf(stderr, "%s: not root\n", label); break;
- case DRM_ERR_INVALID: fprintf(stderr, "%s: invalid args\n", label);break;
+ case DRM_ERR_NO_DEVICE:
+ fprintf(stderr, "%s: no device\n", label);
+ break;
+ case DRM_ERR_NO_ACCESS:
+ fprintf(stderr, "%s: no access\n", label);
+ break;
+ case DRM_ERR_NOT_ROOT:
+ fprintf(stderr, "%s: not root\n", label);
+ break;
+ case DRM_ERR_INVALID:
+ fprintf(stderr, "%s: invalid args\n", label);
+ break;
default:
- if (err < 0) err = -err;
+ if (err < 0)
+ err = -err;
fprintf( stderr, "%s: error %d (%s)\n", label, err, strerror(err) );
break;
}
ctl.func = DRM_INST_HANDLER;
ctl.irq = irq;
- if (ioctl(fd, DRM_IOCTL_CONTROL, &ctl)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_CONTROL, &ctl))
+ return -errno;
return 0;
}
ctl.func = DRM_UNINST_HANDLER;
ctl.irq = 0;
- if (ioctl(fd, DRM_IOCTL_CONTROL, &ctl)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_CONTROL, &ctl))
+ return -errno;
return 0;
}
if (flags & DRM_LOCK_FLUSH_ALL) lock.flags |= _DRM_LOCK_FLUSH_ALL;
if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES;
if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES;
- if (ioctl(fd, DRM_IOCTL_FINISH, &lock)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_FINISH, &lock))
+ return -errno;
return 0;
}
p.busnum = busnum;
p.devnum = devnum;
p.funcnum = funcnum;
- if (ioctl(fd, DRM_IOCTL_IRQ_BUSID, &p)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_IRQ_BUSID, &p))
+ return -errno;
return p.irq;
}
drmHashEntry *entry = drmGetEntry(fd);
void *value;
- if (drmHashLookup(entry->tagTable, context, &value)) return NULL;
+ if (drmHashLookup(entry->tagTable, context, &value))
+ return NULL;
return value;
}
map.ctx_id = ctx_id;
map.handle = (void *)handle;
- if (ioctl(fd, DRM_IOCTL_SET_SAREA_CTX, &map)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_SET_SAREA_CTX, &map))
+ return -errno;
return 0;
}
map.ctx_id = ctx_id;
- if (ioctl(fd, DRM_IOCTL_GET_SAREA_CTX, &map)) return -errno;
- if (handle) *handle = (drm_handle_t)map.handle;
+ if (ioctl(fd, DRM_IOCTL_GET_SAREA_CTX, &map))
+ return -errno;
+ if (handle)
+ *handle = (drm_handle_t)map.handle;
return 0;
}
drm_map_t map;
map.offset = idx;
- if (ioctl(fd, DRM_IOCTL_GET_MAP, &map)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_GET_MAP, &map))
+ return -errno;
*offset = map.offset;
*size = map.size;
*type = map.type;
drm_client_t client;
client.idx = idx;
- if (ioctl(fd, DRM_IOCTL_GET_CLIENT, &client)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_GET_CLIENT, &client))
+ return -errno;
*auth = client.auth;
*pid = client.pid;
*uid = client.uid;
drm_stats_t s;
int i;
- if (ioctl(fd, DRM_IOCTL_GET_STATS, &s)) return -errno;
+ if (ioctl(fd, DRM_IOCTL_GET_STATS, &s))
+ return -errno;
stats->count = 0;
memset(stats, 0, sizeof(*stats));
return 0;
}
-int drmFenceCreate(int fd, int shareable, int class,unsigned type,
- int emit,
+
+/*
+ * Valid flags are
+ * DRM_FENCE_FLAG_EMIT
+ * DRM_FENCE_FLAG_SHAREABLE
+ * DRM_FENCE_MASK_DRIVER
+ */
+
+int drmFenceCreate(int fd, unsigned flags, int fence_class, unsigned type,
drmFence *fence)
{
drm_fence_arg_t arg;
-
+
+ memset(&arg, 0, sizeof(arg));
+ arg.flags = flags;
arg.type = type;
- arg.class = class;
- arg.flags = (shareable) ? DRM_FENCE_FLAG_SHAREABLE : 0;
- arg.flags |= (emit) ? DRM_FENCE_FLAG_EMIT : 0;
- arg.op = drm_fence_create;
- if (ioctl(fd, DRM_IOCTL_FENCE, &arg))
+ arg.fence_class = fence_class;
+
+ if (ioctl(fd, DRM_IOCTL_FENCE_CREATE, &arg))
return -errno;
fence->handle = arg.handle;
- fence->class = arg.class;
+ fence->fence_class = arg.fence_class;
fence->type = arg.type;
+ fence->flags = arg.flags;
fence->signaled = 0;
return 0;
}
-
-int drmFenceDestroy(int fd, const drmFence *fence)
+
+/*
+ * Valid flags are
+ * DRM_FENCE_FLAG_SHAREABLE
+ * DRM_FENCE_MASK_DRIVER
+ */
+
+int drmFenceBuffers(int fd, unsigned flags, uint32_t fence_class, drmFence *fence)
{
drm_fence_arg_t arg;
-
- arg.handle = fence->handle;
- arg.op = drm_fence_destroy;
- if (ioctl(fd, DRM_IOCTL_FENCE, &arg))
+
+ memset(&arg, 0, sizeof(arg));
+ arg.flags = flags;
+ arg.fence_class = fence_class;
+
+ if (ioctl(fd, DRM_IOCTL_FENCE_BUFFERS, &arg))
return -errno;
+ fence->handle = arg.handle;
+ fence->fence_class = arg.fence_class;
+ fence->type = arg.type;
+ fence->flags = arg.flags;
+ fence->sequence = arg.sequence;
+ fence->signaled = 0;
return 0;
}
int drmFenceReference(int fd, unsigned handle, drmFence *fence)
{
drm_fence_arg_t arg;
-
+
+ memset(&arg, 0, sizeof(arg));
arg.handle = handle;
- arg.op = drm_fence_reference;
- if (ioctl(fd, DRM_IOCTL_FENCE, &arg))
+
+ if (ioctl(fd, DRM_IOCTL_FENCE_REFERENCE, &arg))
return -errno;
fence->handle = arg.handle;
- fence->class = arg.class;
+ fence->fence_class = arg.fence_class;
fence->type = arg.type;
+ fence->flags = arg.flags;
fence->signaled = arg.signaled;
return 0;
}
int drmFenceUnreference(int fd, const drmFence *fence)
{
drm_fence_arg_t arg;
-
+
+ memset(&arg, 0, sizeof(arg));
arg.handle = fence->handle;
- arg.op = drm_fence_unreference;
- if (ioctl(fd, DRM_IOCTL_FENCE, &arg))
+
+ if (ioctl(fd, DRM_IOCTL_FENCE_UNREFERENCE, &arg))
return -errno;
return 0;
}
int drmFenceFlush(int fd, drmFence *fence, unsigned flush_type)
{
drm_fence_arg_t arg;
-
+
+ memset(&arg, 0, sizeof(arg));
arg.handle = fence->handle;
arg.type = flush_type;
- arg.op = drm_fence_flush;
- if (ioctl(fd, DRM_IOCTL_FENCE, &arg))
+
+ if (ioctl(fd, DRM_IOCTL_FENCE_FLUSH, &arg))
return -errno;
- fence->class = arg.class;
+ fence->fence_class = arg.fence_class;
fence->type = arg.type;
fence->signaled = arg.signaled;
- return 0;
+ return arg.error;
}
-int drmFenceSignaled(int fd, drmFence *fence)
+int drmFenceUpdate(int fd, drmFence *fence)
{
drm_fence_arg_t arg;
-
+
+ memset(&arg, 0, sizeof(arg));
arg.handle = fence->handle;
- arg.op = drm_fence_signaled;
- if (ioctl(fd, DRM_IOCTL_FENCE, &arg))
+
+ if (ioctl(fd, DRM_IOCTL_FENCE_SIGNALED, &arg))
return -errno;
- fence->class = arg.class;
+ fence->fence_class = arg.fence_class;
fence->type = arg.type;
fence->signaled = arg.signaled;
return 0;
}
-int drmFenceEmit(int fd, drmFence *fence, unsigned emit_type)
+int drmFenceSignaled(int fd, drmFence *fence, unsigned fenceType,
+ int *signaled)
+{
+ if ((fence->flags & DRM_FENCE_FLAG_SHAREABLE) ||
+ ((fenceType & fence->signaled) != fenceType)) {
+ int ret = drmFenceFlush(fd, fence, fenceType);
+ if (ret)
+ return ret;
+ }
+
+ *signaled = ((fenceType & fence->signaled) == fenceType);
+
+ return 0;
+}
+
+/*
+ * Valid flags are
+ * DRM_FENCE_FLAG_SHAREABLE
+ * DRM_FENCE_MASK_DRIVER
+ */
+
+
+int drmFenceEmit(int fd, unsigned flags, drmFence *fence, unsigned emit_type)
{
drm_fence_arg_t arg;
-
+
+ memset(&arg, 0, sizeof(arg));
+ arg.fence_class = fence->fence_class;
+ arg.flags = flags;
arg.handle = fence->handle;
arg.type = emit_type;
- arg.op = drm_fence_emit;
- if (ioctl(fd, DRM_IOCTL_FENCE, &arg))
+
+ if (ioctl(fd, DRM_IOCTL_FENCE_EMIT, &arg))
return -errno;
- fence->class = arg.class;
+ fence->fence_class = arg.fence_class;
fence->type = arg.type;
fence->signaled = arg.signaled;
+ fence->sequence = arg.sequence;
+ return 0;
+}
+
+/*
+ * Valid flags are
+ * DRM_FENCE_FLAG_WAIT_LAZY
+ * DRM_FENCE_FLAG_WAIT_IGNORE_SIGNALS
+ */
+
+#define DRM_IOCTL_TIMEOUT_USEC 3000000UL
+
+static unsigned long
+drmTimeDiff(struct timeval *now, struct timeval *then)
+{
+ uint64_t val;
+
+ val = now->tv_sec - then->tv_sec;
+ val *= 1000000LL;
+ val += now->tv_usec;
+ val -= then->tv_usec;
+
+ return (unsigned long) val;
+}
+
+static int
+drmIoctlTimeout(int fd, unsigned long request, void *argp)
+{
+ int haveThen = 0;
+ struct timeval then, now;
+ int ret;
+
+ do {
+ ret = ioctl(fd, request, argp);
+ if (ret != 0 && errno == EAGAIN) {
+ if (!haveThen) {
+ gettimeofday(&then, NULL);
+ haveThen = 1;
+ }
+ gettimeofday(&now, NULL);
+ }
+ } while (ret != 0 && errno == EAGAIN &&
+ drmTimeDiff(&now, &then) < DRM_IOCTL_TIMEOUT_USEC);
+
+ if (ret != 0)
+ return ((errno == EAGAIN) ? -EBUSY : -errno);
+
return 0;
}
-int drmFenceWait(int fd, drmFence *fence, unsigned flush_type,
- int lazy, int ignore_signals)
+
+
+
+int drmFenceWait(int fd, unsigned flags, drmFence *fence, unsigned flush_type)
{
drm_fence_arg_t arg;
int ret;
+ if (flush_type == 0) {
+ flush_type = fence->type;
+ }
+
+ if (!(fence->flags & DRM_FENCE_FLAG_SHAREABLE)) {
+ if ((flush_type & fence->signaled) == flush_type) {
+ return 0;
+ }
+ }
+
+ memset(&arg, 0, sizeof(arg));
arg.handle = fence->handle;
arg.type = flush_type;
- arg.flags = (lazy) ? DRM_FENCE_FLAG_WAIT_LAZY : 0;
- arg.flags |= (ignore_signals) ? DRM_FENCE_FLAG_WAIT_IGNORE_SIGNALS : 0;
- arg.op = drm_fence_wait;
- do {
- ret = ioctl(fd, DRM_IOCTL_FENCE, &arg);
- } while (ret != 0 && errno == EAGAIN);
+ arg.flags = flags;
+
+ ret = drmIoctlTimeout(fd, DRM_IOCTL_FENCE_WAIT, &arg);
if (ret)
- return -errno;
+ return ret;
- fence->class = arg.class;
+ fence->fence_class = arg.fence_class;
fence->type = arg.type;
fence->signaled = arg.signaled;
- return 0;
+ return arg.error;
}
+static void drmBOCopyReply(const struct drm_bo_info_rep *rep, drmBO *buf)
+{
+ buf->handle = rep->handle;
+ buf->flags = rep->flags;
+ buf->size = rep->size;
+ buf->offset = rep->offset;
+ buf->mapHandle = rep->arg_handle;
+ buf->mask = rep->mask;
+ buf->start = rep->buffer_start;
+ buf->fenceFlags = rep->fence_flags;
+ buf->replyFlags = rep->rep_flags;
+ buf->pageAlignment = rep->page_alignment;
+ buf->tileInfo = rep->tile_info;
+ buf->hwTileStride = rep->hw_tile_stride;
+ buf->desiredTileStride = rep->desired_tile_stride;
+}
+
+
+
+int drmBOCreate(int fd, unsigned long size,
+ unsigned pageAlignment, void *user_buffer,
+ uint64_t mask,
+ unsigned hint, drmBO *buf)
+{
+ struct drm_bo_create_arg arg;
+ struct drm_bo_create_req *req = &arg.d.req;
+ struct drm_bo_info_rep *rep = &arg.d.rep;
+ int ret;
+
+ memset(buf, 0, sizeof(*buf));
+ memset(&arg, 0, sizeof(arg));
+ req->mask = mask;
+ req->hint = hint;
+ req->size = size;
+ req->page_alignment = pageAlignment;
+ req->buffer_start = (unsigned long) user_buffer;
+
+ buf->virtual = NULL;
+
+ ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_CREATE, &arg);
+ if (ret)
+ return ret;
+
+ drmBOCopyReply(rep, buf);
+ buf->virtual = user_buffer;
+ buf->mapCount = 0;
+
+ return 0;
+}
+
+int drmBOReference(int fd, unsigned handle, drmBO *buf)
+{
+ struct drm_bo_reference_info_arg arg;
+ struct drm_bo_handle_arg *req = &arg.d.req;
+ struct drm_bo_info_rep *rep = &arg.d.rep;
+
+ memset(&arg, 0, sizeof(arg));
+ req->handle = handle;
+
+ if (ioctl(fd, DRM_IOCTL_BO_REFERENCE, &arg))
+ return -errno;
+
+ drmBOCopyReply(rep, buf);
+ buf->mapVirtual = NULL;
+ buf->mapCount = 0;
+ buf->virtual = NULL;
+
+ return 0;
+}
+
+int drmBOUnreference(int fd, drmBO *buf)
+{
+ struct drm_bo_handle_arg arg;
+
+ if (buf->mapVirtual && buf->mapHandle) {
+ (void) munmap(buf->mapVirtual, buf->start + buf->size);
+ buf->mapVirtual = NULL;
+ buf->virtual = NULL;
+ }
+
+ memset(&arg, 0, sizeof(arg));
+ arg.handle = buf->handle;
+
+ if (ioctl(fd, DRM_IOCTL_BO_UNREFERENCE, &arg))
+ return -errno;
+
+ buf->handle = 0;
+ return 0;
+}
+
+
+/*
+ * Flags can be DRM_BO_FLAG_READ, DRM_BO_FLAG_WRITE or'ed together
+ * Hint currently be DRM_BO_HINT_DONT_BLOCK, which makes the
+ * call return an -EBUSY if it can' immediately honor the mapping request.
+ */
+
+int drmBOMap(int fd, drmBO *buf, unsigned mapFlags, unsigned mapHint,
+ void **address)
+{
+ struct drm_bo_map_wait_idle_arg arg;
+ struct drm_bo_info_req *req = &arg.d.req;
+ struct drm_bo_info_rep *rep = &arg.d.rep;
+ int ret = 0;
+
+ /*
+ * Make sure we have a virtual address of the buffer.
+ */
+ if (!buf->virtual) {
+ drmAddress virtual;
+ virtual = mmap(0, buf->size + buf->start,
+ PROT_READ | PROT_WRITE, MAP_SHARED,
+ fd, buf->mapHandle);
+ if (virtual == MAP_FAILED) {
+ ret = -errno;
+ }
+ if (ret)
+ return ret;
+ buf->mapVirtual = virtual;
+ buf->virtual = ((char *) virtual) + buf->start;
+ }
+
+ memset(&arg, 0, sizeof(arg));
+ req->handle = buf->handle;
+ req->mask = mapFlags;
+ req->hint = mapHint;
+
+ /*
+ * May hang if the buffer object is busy.
+ * This IOCTL synchronizes the buffer.
+ */
+
+ ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_MAP, &arg);
+ if (ret)
+ return ret;
+
+ drmBOCopyReply(rep, buf);
+ buf->mapFlags = mapFlags;
+ ++buf->mapCount;
+ *address = buf->virtual;
+
+ return 0;
+}
+
+
+int drmBOUnmap(int fd, drmBO *buf)
+{
+ struct drm_bo_handle_arg arg;
+
+ memset(&arg, 0, sizeof(arg));
+ arg.handle = buf->handle;
+
+ if (ioctl(fd, DRM_IOCTL_BO_UNMAP, &arg)) {
+ return -errno;
+ }
+ buf->mapCount--;
+ return 0;
+}
+
+int drmBOSetStatus(int fd, drmBO *buf,
+ uint64_t flags, uint64_t mask,
+ unsigned int hint,
+ unsigned int desired_tile_stride,
+ unsigned int tile_info)
+{
+
+ struct drm_bo_map_wait_idle_arg arg;
+ struct drm_bo_info_req *req = &arg.d.req;
+ struct drm_bo_info_rep *rep = &arg.d.rep;
+ int ret = 0;
+
+ memset(&arg, 0, sizeof(arg));
+ req->mask = mask;
+ req->flags = flags;
+ req->handle = buf->handle;
+ req->hint = hint;
+ req->desired_tile_stride = desired_tile_stride;
+ req->tile_info = tile_info;
+
+ ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_SETSTATUS, &arg);
+ if (ret)
+ return ret;
+
+ drmBOCopyReply(rep, buf);
+ return 0;
+}
+
+
+int drmBOInfo(int fd, drmBO *buf)
+{
+ struct drm_bo_reference_info_arg arg;
+ struct drm_bo_handle_arg *req = &arg.d.req;
+ struct drm_bo_info_rep *rep = &arg.d.rep;
+ int ret = 0;
+
+ memset(&arg, 0, sizeof(arg));
+ req->handle = buf->handle;
+
+ ret = ioctl(fd, DRM_IOCTL_BO_INFO, &arg);
+ if (ret)
+ return -errno;
+
+ drmBOCopyReply(rep, buf);
+ return 0;
+}
+
+int drmBOWaitIdle(int fd, drmBO *buf, unsigned hint)
+{
+ struct drm_bo_map_wait_idle_arg arg;
+ struct drm_bo_info_req *req = &arg.d.req;
+ struct drm_bo_info_rep *rep = &arg.d.rep;
+ int ret = 0;
+
+ if ((buf->flags & DRM_BO_FLAG_SHAREABLE) ||
+ (buf->replyFlags & DRM_BO_REP_BUSY)) {
+ memset(&arg, 0, sizeof(arg));
+ req->handle = buf->handle;
+ req->hint = hint;
+
+ ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_WAIT_IDLE, &arg);
+ if (ret)
+ return ret;
+
+ drmBOCopyReply(rep, buf);
+ }
+ return 0;
+}
+
+int drmBOBusy(int fd, drmBO *buf, int *busy)
+{
+ if (!(buf->flags & DRM_BO_FLAG_SHAREABLE) &&
+ !(buf->replyFlags & DRM_BO_REP_BUSY)) {
+ *busy = 0;
+ return 0;
+ }
+ else {
+ int ret = drmBOInfo(fd, buf);
+ if (ret)
+ return ret;
+ *busy = (buf->replyFlags & DRM_BO_REP_BUSY);
+ return 0;
+ }
+}
+
+int drmMMInit(int fd, unsigned long pOffset, unsigned long pSize,
+ unsigned memType)
+{
+ struct drm_mm_init_arg arg;
+
+ memset(&arg, 0, sizeof(arg));
+
+ arg.magic = DRM_BO_INIT_MAGIC;
+ arg.major = DRM_BO_INIT_MAJOR;
+ arg.minor = DRM_BO_INIT_MINOR;
+ arg.p_offset = pOffset;
+ arg.p_size = pSize;
+ arg.mem_type = memType;
+
+ if (ioctl(fd, DRM_IOCTL_MM_INIT, &arg))
+ return -errno;
+ return 0;
+}
+
+int drmMMTakedown(int fd, unsigned memType)
+{
+ struct drm_mm_type_arg arg;
+
+ memset(&arg, 0, sizeof(arg));
+ arg.mem_type = memType;
+
+ if (ioctl(fd, DRM_IOCTL_MM_TAKEDOWN, &arg))
+ return -errno;
+ return 0;
+}
+
+/*
+ * If this function returns an error, and lockBM was set to 1,
+ * the buffer manager is NOT locked.
+ */
+
+int drmMMLock(int fd, unsigned memType, int lockBM, int ignoreNoEvict)
+{
+ struct drm_mm_type_arg arg;
+
+ memset(&arg, 0, sizeof(arg));
+ arg.mem_type = memType;
+ arg.lock_flags |= (lockBM) ? DRM_BO_LOCK_UNLOCK_BM : 0;
+ arg.lock_flags |= (ignoreNoEvict) ? DRM_BO_LOCK_IGNORE_NO_EVICT : 0;
+
+ return drmIoctlTimeout(fd, DRM_IOCTL_MM_LOCK, &arg);
+}
+
+int drmMMUnlock(int fd, unsigned memType, int unlockBM)
+{
+ struct drm_mm_type_arg arg;
+
+ memset(&arg, 0, sizeof(arg));
+
+ arg.mem_type = memType;
+ arg.lock_flags |= (unlockBM) ? DRM_BO_LOCK_UNLOCK_BM : 0;
+
+ return drmIoctlTimeout(fd, DRM_IOCTL_MM_UNLOCK, &arg);
+}
+
+int drmBOVersion(int fd, unsigned int *major,
+ unsigned int *minor,
+ unsigned int *patchlevel)
+{
+ struct drm_bo_version_arg arg;
+ int ret;
+
+ memset(&arg, 0, sizeof(arg));
+ ret = ioctl(fd, DRM_IOCTL_BO_VERSION, &arg);
+ if (ret)
+ return -errno;
+
+ if (major)
+ *major = arg.major;
+ if (minor)
+ *minor = arg.minor;
+ if (patchlevel)
+ *patchlevel = arg.patchlevel;
+
+ return 0;
+}
+
+
+
+#define DRM_MAX_FDS 16
+static struct {
+ char *BusID;
+ int fd;
+ int refcount;
+} connection[DRM_MAX_FDS];
+
+static int nr_fds = 0;
+
+int drmOpenOnce(void *unused,
+ const char *BusID,
+ int *newlyopened)
+{
+ int i;
+ int fd;
+
+ for (i = 0; i < nr_fds; i++)
+ if (strcmp(BusID, connection[i].BusID) == 0) {
+ connection[i].refcount++;
+ *newlyopened = 0;
+ return connection[i].fd;
+ }
+
+ fd = drmOpen(unused, BusID);
+ if (fd <= 0 || nr_fds == DRM_MAX_FDS)
+ return fd;
+
+ connection[nr_fds].BusID = strdup(BusID);
+ connection[nr_fds].fd = fd;
+ connection[nr_fds].refcount = 1;
+ *newlyopened = 1;
+
+ if (0)
+ fprintf(stderr, "saved connection %d for %s %d\n",
+ nr_fds, connection[nr_fds].BusID,
+ strcmp(BusID, connection[nr_fds].BusID));
+
+ nr_fds++;
+
+ return fd;
+}
+
+void drmCloseOnce(int fd)
+{
+ int i;
+
+ for (i = 0; i < nr_fds; i++) {
+ if (fd == connection[i].fd) {
+ if (--connection[i].refcount == 0) {
+ drmClose(connection[i].fd);
+ free(connection[i].BusID);
+
+ if (i < --nr_fds)
+ connection[i] = connection[nr_fds];
+
+ return;
+ }
+ }
+ }
+}
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