| /* |
| * Copyright (C) 2015-2016 Gerd Hoffmann <kraxel@redhat.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| #include "qemu/osdep.h" |
| #include "qemu/drm.h" |
| |
| #include <glob.h> |
| #include <dirent.h> |
| |
| int qemu_drm_rendernode_open(const char *rendernode) |
| { |
| DIR *dir; |
| struct dirent *e; |
| int r, fd; |
| char *p; |
| |
| if (rendernode) { |
| return open(rendernode, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK); |
| } |
| |
| dir = opendir("/dev/dri"); |
| if (!dir) { |
| return -1; |
| } |
| |
| fd = -1; |
| while ((e = readdir(dir))) { |
| if (e->d_type != DT_CHR) { |
| continue; |
| } |
| |
| if (strncmp(e->d_name, "renderD", 7)) { |
| continue; |
| } |
| |
| p = g_strdup_printf("/dev/dri/%s", e->d_name); |
| |
| r = open(p, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK); |
| if (r < 0) { |
| g_free(p); |
| continue; |
| } |
| fd = r; |
| g_free(p); |
| break; |
| } |
| |
| closedir(dir); |
| if (fd < 0) { |
| return -1; |
| } |
| return fd; |
| } |