summaryrefslogtreecommitdiff
path: root/libdrm/xf86drm.c
diff options
context:
space:
mode:
Diffstat (limited to 'libdrm/xf86drm.c')
-rw-r--r--libdrm/xf86drm.c42
1 files changed, 33 insertions, 9 deletions
diff --git a/libdrm/xf86drm.c b/libdrm/xf86drm.c
index 150dd5f8..64765339 100644
--- a/libdrm/xf86drm.c
+++ b/libdrm/xf86drm.c
@@ -87,6 +87,9 @@
#define DRM_MSG_VERBOSITY 3
+#define DRM_NODE_CONTROL 0
+#define DRM_NODE_RENDER 1
+
static drmServerInfoPtr drm_server_info;
void drmSetServerInfo(drmServerInfoPtr info)
@@ -277,7 +280,7 @@ static int drmMatchBusID(const char *id1, const char *id2)
* special file node with the major and minor numbers specified by \p dev and
* parent directory if necessary and was called by root.
*/
-static int drmOpenDevice(long dev, int minor)
+static int drmOpenDevice(long dev, int minor, int type)
{
stat_t st;
char buf[64];
@@ -287,7 +290,7 @@ static int drmOpenDevice(long dev, int minor)
uid_t user = DRM_DEV_UID;
gid_t group = DRM_DEV_GID, serv_group;
- sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor);
+ sprintf(buf, type ? DRM_DEV_NAME : DRM_CONTROL_DEV_NAME, DRM_DIR_NAME, minor);
drmMsg("drmOpenDevice: node name is %s\n", buf);
if (drm_server_info) {
@@ -361,15 +364,15 @@ static int drmOpenDevice(long dev, int minor)
* Calls drmOpenDevice() if \p create is set, otherwise assembles the device
* name from \p minor and opens it.
*/
-static int drmOpenMinor(int minor, int create)
+static int drmOpenMinor(int minor, int create, int type)
{
int fd;
char buf[64];
if (create)
- return drmOpenDevice(makedev(DRM_MAJOR, minor), minor);
+ return drmOpenDevice(makedev(DRM_MAJOR, minor), minor, type);
- sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor);
+ sprintf(buf, type ? DRM_DEV_NAME : DRM_CONTROL_DEV_NAME, DRM_DIR_NAME, minor);
if ((fd = open(buf, O_RDWR, 0)) >= 0)
return fd;
return -errno;
@@ -392,7 +395,7 @@ int drmAvailable(void)
int retval = 0;
int fd;
- if ((fd = drmOpenMinor(0, 1)) < 0) {
+ if ((fd = drmOpenMinor(0, 1, DRM_NODE_RENDER)) < 0) {
#ifdef __linux__
/* Try proc for backward Linux compatibility */
if (!access("/proc/dri/0", R_OK))
@@ -433,7 +436,7 @@ static int drmOpenByBusid(const char *busid)
drmMsg("drmOpenByBusid: Searching for BusID %s\n", busid);
for (i = 0; i < DRM_MAX_MINOR; i++) {
- fd = drmOpenMinor(i, 1);
+ fd = drmOpenMinor(i, 1, DRM_NODE_RENDER);
drmMsg("drmOpenByBusid: drmOpenMinor returns %d\n", fd);
if (fd >= 0) {
sv.drm_di_major = 1;
@@ -495,7 +498,7 @@ static int drmOpenByName(const char *name)
* already in use. If it's in use it will have a busid assigned already.
*/
for (i = 0; i < DRM_MAX_MINOR; i++) {
- if ((fd = drmOpenMinor(i, 1)) >= 0) {
+ if ((fd = drmOpenMinor(i, 1, DRM_NODE_RENDER)) >= 0) {
if ((version = drmGetVersion(fd))) {
if (!strcmp(version->name, name)) {
drmFreeVersion(version);
@@ -539,7 +542,7 @@ static int drmOpenByName(const char *name)
if (*pt) { /* Found busid */
return drmOpenByBusid(++pt);
} else { /* No busid */
- return drmOpenDevice(strtol(devstring, NULL, 0),i);
+ return drmOpenDevice(strtol(devstring, NULL, 0),i, DRM_NODE_RENDER);
}
}
}
@@ -589,6 +592,10 @@ int drmOpen(const char *name, const char *busid)
return -1;
}
+int drmOpenControl(int minor)
+{
+ return drmOpenMinor(minor, 0, DRM_NODE_CONTROL);
+}
/**
* Free the version information returned by drmGetVersion().
@@ -2409,3 +2416,20 @@ void drmCloseOnce(int fd)
}
}
}
+
+int drmSetMaster(int fd)
+{
+ int ret;
+
+ fprintf(stderr,"Setting master \n");
+ ret = ioctl(fd, DRM_IOCTL_SET_MASTER, 0);
+ return ret;
+}
+
+int drmDropMaster(int fd)
+{
+ int ret;
+ fprintf(stderr,"Dropping master \n");
+ ret = ioctl(fd, DRM_IOCTL_DROP_MASTER, 0);
+ return ret;
+}