setdpms: add new test for dpms control

alright, it doesn't really depends on libbacklight but it's quite related for
playing around and testing.

Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>

2 files changed, 103 insertions, 1 deletions

diff --git a/test/Makefile.am b/test/Makefile.am
index 7fbb4a1..f168def 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -21,7 +21,7 @@
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 # DEALINGS IN THE SOFTWARE.
 
-noinst_PROGRAMS = setbacklight
+noinst_PROGRAMS = setbacklight setdpms
 
 AM_CPPFLAGS = -I$(top_srcdir)/include $(DRM_CFLAGS)
 LDADD =  $(top_builddir)/src/libbacklight.la
@@ -31,3 +31,7 @@ setbacklight_LDFLAGS = $(DRM_CFLAGS) $(PCIACCESS_CFLAGS)
 setbacklight_LDADD = $(DRM_LIBS) \
 		     $(PCIACCESS_LIBS) \
 		     $(top_builddir)/src/libbacklight.la
+
+setdpms_SOURCES = setdpms.c
+setdpms_LDFLAGS = $(DRM_CFLAGS)
+setdpms_LDADD = $(DRM_LIBS) $(top_builddir)/src/libbacklight.la
diff --git a/test/setdpms.c b/test/setdpms.c
new file mode 100644
index 0000000..19f658d
--- /dev/null
+++ b/test/setdpms.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Tiago Vignatti
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+static void
+set_dpms(int fd, drmModeResPtr res, const int dpms)
+{
+	drmModeConnectorPtr connector;
+	int i, j;
+
+	for (i = 0; i < res->count_connectors; i++) {
+		connector = drmModeGetConnector(fd, res->connectors[i]);
+
+		if (!connector)
+			continue;
+
+		if (connector->connection == DRM_MODE_DISCONNECTED)
+			continue;
+
+		for (j = 0; j < connector->count_props; j++) {
+			drmModePropertyPtr props;
+			props = drmModeGetProperty(fd, connector->props[j]);
+			if (!props)
+				continue;
+
+			if (!strcmp(props->name, "DPMS")) {
+				drmModeConnectorSetProperty(fd,
+						connector->connector_id,
+						props->prop_id,
+						dpms);
+			}
+			drmModeFreeProperty(props);
+		}
+		drmModeFreeConnector(connector);
+	}
+}
+
+int
+main(int argc, char **argv)
+{
+	int fd, dpms;
+	drmModeResPtr res;
+	const char *module_name = "i915";
+
+	if (argc < 2) {
+		printf("Please add argument 0 or 1 for DPMS on/off\n");
+		return 1;
+	}
+
+	dpms = atoi(argv[1]);
+	if (dpms != 0 && dpms != 1) {
+		printf("Please add argument 0 or 1 for DPMS on/off\n");
+		return 1;
+	}
+
+	fd = drmOpen(module_name, NULL);
+	if (fd < 0) {
+		printf("Failed to open the card fd (%d)\n",fd);
+		return 1;
+	}
+
+	res = drmModeGetResources(fd);
+	if (res == 0) {
+		printf("Failed to get resources from card\n");
+		drmClose(fd);
+		return 1;
+	}
+
+	set_dpms(fd, res, dpms);
+
+	return 0;
+}