new file mode 100644
@@ -0,0 +1,248 @@
+/*
+ * Copyright © 2014 NVIDIA Corporation
+ *
+ * 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 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
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/ioctl.h>
+
+#include "xf86drm.h"
+#include "xf86drmMode.h"
+#include "drm_fourcc.h"
+
+#include "drm-test.h"
+
+static int drm_screen_probe_connector(struct drm_screen *screen,
+ drmModeConnectorPtr connector)
+{
+ drmModeEncoderPtr encoder;
+ drmModeCrtcPtr crtc;
+ drmModeFBPtr fb;
+
+ encoder = drmModeGetEncoder(screen->fd, connector->encoder_id);
+ if (!encoder)
+ return -ENODEV;
+
+ crtc = drmModeGetCrtc(screen->fd, encoder->crtc_id);
+ if (!crtc) {
+ drmModeFreeEncoder(encoder);
+ return -ENODEV;
+ }
+
+ screen->old_fb = crtc->buffer_id;
+
+ fb = drmModeGetFB(screen->fd, crtc->buffer_id);
+ if (!fb) {
+ /* TODO: create new framebuffer */
+ drmModeFreeEncoder(encoder);
+ drmModeFreeCrtc(crtc);
+ return -ENOSYS;
+ }
+
+ screen->connector = connector->connector_id;
+ screen->old_fb = crtc->buffer_id;
+ screen->crtc = encoder->crtc_id;
+ /* TODO: check crtc->mode_valid */
+ screen->mode = crtc->mode;
+
+ screen->width = fb->width;
+ screen->height = fb->height;
+ screen->pitch = fb->pitch;
+ screen->depth = fb->depth;
+ screen->bpp = fb->bpp;
+
+ drmModeFreeEncoder(encoder);
+ drmModeFreeCrtc(crtc);
+ drmModeFreeFB(fb);
+
+ return 0;
+}
+
+int drm_screen_open(struct drm_screen **screenp, int fd)
+{
+ drmModeConnectorPtr connector;
+ struct drm_screen *screen;
+ bool found = false;
+ drmModeResPtr res;
+ unsigned int i;
+ int err;
+
+ if (!screenp || fd < 0)
+ return -EINVAL;
+
+ screen = calloc(1, sizeof(*screen));
+ if (!screen)
+ return -ENOMEM;
+
+ screen->format = DRM_FORMAT_XRGB8888;
+ screen->fd = fd;
+
+ res = drmModeGetResources(fd);
+ if (!res) {
+ free(screen);
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < (unsigned int)res->count_connectors; i++) {
+ connector = drmModeGetConnector(fd, res->connectors[i]);
+ if (!connector)
+ continue;
+
+ if (connector->connection != DRM_MODE_CONNECTED) {
+ drmModeFreeConnector(connector);
+ continue;
+ }
+
+ err = drm_screen_probe_connector(screen, connector);
+ if (err < 0) {
+ drmModeFreeConnector(connector);
+ continue;
+ }
+
+ drmModeFreeConnector(connector);
+ found = true;
+ break;
+ }
+
+ drmModeFreeResources(res);
+
+ if (!found) {
+ free(screen);
+ return -ENODEV;
+ }
+
+ *screenp = screen;
+
+ return 0;
+}
+
+int drm_screen_close(struct drm_screen *screen)
+{
+ int err;
+
+ err = drmModeSetCrtc(screen->fd, screen->crtc, screen->old_fb, 0, 0,
+ &screen->connector, 1, &screen->mode);
+ if (err < 0) {
+ fprintf(stderr, "drmModeSetCrtc() failed: %m\n");
+ return -errno;
+ }
+
+ free(screen);
+
+ return 0;
+}
+
+int drm_framebuffer_new(struct drm_framebuffer **fbp,
+ struct drm_screen *screen, uint32_t handle,
+ unsigned int width, unsigned int height,
+ unsigned int pitch, uint32_t format,
+ void *data)
+{
+ struct drm_framebuffer *fb;
+ uint32_t handles[4];
+ uint32_t pitches[4];
+ uint32_t offsets[4];
+ int err;
+
+ fb = calloc(1, sizeof(*fb));
+ if (!fb)
+ return -ENOMEM;
+
+ fb->fd = screen->fd;
+ fb->width = width;
+ fb->height = height;
+ fb->pitch = pitch;
+ fb->format = format;
+ fb->data = data;
+
+ handles[0] = handle;
+ pitches[0] = pitch;
+ offsets[0] = 0;
+
+ err = drmModeAddFB2(screen->fd, width, height, format, handles,
+ pitches, offsets, &fb->handle, 0);
+ if (err < 0)
+ return -errno;
+
+ *fbp = fb;
+
+ return 0;
+}
+
+int drm_framebuffer_free(struct drm_framebuffer *fb)
+{
+ int err;
+
+ err = drmModeRmFB(fb->fd, fb->handle);
+ if (err < 0)
+ return -errno;
+
+ free(fb);
+
+ return 0;
+}
+
+int drm_screen_set_framebuffer(struct drm_screen *screen,
+ struct drm_framebuffer *fb)
+{
+ int err;
+
+ err = drmModeSetCrtc(screen->fd, screen->crtc, fb->handle, 0, 0,
+ &screen->connector, 1, &screen->mode);
+ if (err < 0)
+ return -errno;
+
+ return 0;
+}
+
+int drm_open(const char *path)
+{
+ int fd, err;
+
+ fd = open(path, O_RDWR);
+ if (fd < 0)
+ return -errno;
+
+ err = drmSetMaster(fd);
+ if (err < 0) {
+ close(fd);
+ return -errno;
+ }
+
+ return fd;
+}
+
+void drm_close(int fd)
+{
+ drmDropMaster(fd);
+ close(fd);
+}
new file mode 100644
@@ -0,0 +1,72 @@
+/*
+ * Copyright © 2014 NVIDIA Corporation
+ *
+ * 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 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
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 TEGRA_DRM_TEST_H
+#define TEGRA_DRM_TEST_H
+
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "xf86drmMode.h"
+
+struct drm_screen {
+ int fd;
+
+ unsigned int width;
+ unsigned int height;
+ unsigned int pitch;
+ unsigned int depth;
+ unsigned int bpp;
+
+ drmModeModeInfo mode;
+ uint32_t connector;
+ uint32_t old_fb;
+ uint32_t format;
+ uint32_t crtc;
+};
+
+struct drm_framebuffer {
+ unsigned int width;
+ unsigned int height;
+ unsigned int pitch;
+ uint32_t format;
+ uint32_t handle;
+ void *data;
+ int fd;
+};
+
+int drm_screen_open(struct drm_screen **screenp, int fd);
+int drm_screen_close(struct drm_screen *screen);
+int drm_screen_set_framebuffer(struct drm_screen *screen,
+ struct drm_framebuffer *fb);
+
+int drm_framebuffer_new(struct drm_framebuffer **fbp,
+ struct drm_screen *screen, uint32_t handle,
+ unsigned int width, unsigned int height,
+ unsigned int pitch, uint32_t format,
+ void *data);
+int drm_framebuffer_free(struct drm_framebuffer *fb);
+
+int drm_open(const char *path);
+void drm_close(int fd);
+
+#endif
@@ -20,6 +20,13 @@
inc_tegra = include_directories('../../tegra')
+libdrm_test = static_library(
+ 'drm-test',
+ [files('drm-test.c', 'drm-test.h'), config_file ],
+ include_directories : [inc_root, inc_drm, inc_tegra],
+ link_with : libdrm,
+)
+
openclose = executable(
'tegra-openclose',
files('openclose.c'),