modetest: Add a command line parameter to set properties

The -w parameter can be used to set a property value from the command
line, using the target object ID and the property name.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
index 48352c5..2b071af 100644 (file)
--- a/tests/modetest/modetest.c
+++ b/tests/modetest/modetest.c
@@ -709,6 +709,80 @@ connector_find_mode(struct connector_arg *c)
 
 }
 
+/* -----------------------------------------------------------------------------
+ * Properties
+ */
+
+struct property_arg {
+       uint32_t obj_id;
+       uint32_t obj_type;
+       char name[DRM_PROP_NAME_LEN+1];
+       uint32_t prop_id;
+       uint64_t value;
+};
+
+static void set_property(struct property_arg *p)
+{
+       drmModeObjectProperties *props;
+       drmModePropertyRes **props_info;
+       const char *obj_type;
+       int ret;
+       int i;
+
+       p->obj_type = 0;
+       p->prop_id = 0;
+
+#define find_object(_res, __res, type, Type)                                   \
+       do {                                                                    \
+               for (i = 0; i < (int)(_res)->__res->count_##type##s; ++i) {     \
+                       struct type *obj = &(_res)->type##s[i];                 \
+                       if (obj->type->type##_id != p->obj_id)                  \
+                               continue;                                       \
+                       p->obj_type = DRM_MODE_OBJECT_##Type;                   \
+                       obj_type = #Type;                                       \
+                       props = obj->props;                                     \
+                       props_info = obj->props_info;                           \
+               }                                                               \
+       } while(0)                                                              \
+
+       find_object(resources, res, crtc, CRTC);
+       if (p->obj_type == 0)
+               find_object(resources, res, connector, CONNECTOR);
+       if (p->obj_type == 0)
+               find_object(resources, plane_res, plane, PLANE);
+       if (p->obj_type == 0) {
+               fprintf(stderr, "Object %i not found, can't set property\n",
+                       p->obj_id);
+                       return;
+       }
+
+       if (!props) {
+               fprintf(stderr, "%s %i has no properties\n",
+                       obj_type, p->obj_id);
+               return;
+       }
+
+       for (i = 0; i < (int)props->count_props; ++i) {
+               if (!props_info[i])
+                       continue;
+               if (strcmp(props_info[i]->name, p->name) == 0)
+                       break;
+       }
+
+       if (i == (int)props->count_props) {
+               fprintf(stderr, "%s %i has no %s property\n",
+                       obj_type, p->obj_id, p->name);
+               return;
+       }
+
+       p->prop_id = props->props[i];
+
+       ret = drmModeObjectSetProperty(fd, p->obj_id, p->obj_type, p->prop_id, p->value);
+       if (ret < 0)
+               fprintf(stderr, "failed to set %s %i property %s to %" PRIu64 ": %s\n",
+                       obj_type, p->obj_id, p->name, p->value, strerror(errno));
+}
+
 /* -------------------------------------------------------------------------- */
 
 static void
@@ -1008,9 +1082,20 @@ static int parse_plane(struct plane_arg *p, const char *arg)
        return 0;
 }
 
+static int parse_property(struct property_arg *p, const char *arg)
+{
+       if (sscanf(arg, "%d:%32[^:]:%" SCNu64, &p->obj_id, p->name, &p->value) != 3)
+               return -1;
+
+       p->obj_type = 0;
+       p->name[DRM_PROP_NAME_LEN] = '\0';
+
+       return 0;
+}
+
 static void usage(char *name)
 {
-       fprintf(stderr, "usage: %s [-cdefMmPpsv]\n", name);
+       fprintf(stderr, "usage: %s [-cdefMmPpsvw]\n", name);
 
        fprintf(stderr, "\n Query options:\n\n");
        fprintf(stderr, "\t-c\tlist connectors\n");
@@ -1023,6 +1108,7 @@ static void usage(char *name)
        fprintf(stderr, "\t-P <connector_id>:<w>x<h>[@<format>]\tset a plane\n");
        fprintf(stderr, "\t-s <connector_id>[@<crtc_id>]:<mode>[@<format>]\tset a mode\n");
        fprintf(stderr, "\t-v\ttest vsynced page flipping\n");
+       fprintf(stderr, "\t-w <obj_id>:<prop_name>:<value>\tset property\n");
 
        fprintf(stderr, "\n Generic options:\n\n");
        fprintf(stderr, "\t-d\tdrop master after mode set\n");
@@ -1055,7 +1141,7 @@ static int page_flipping_supported(void)
 #endif
 }
 
-static char optstr[] = "cdefM:mP:ps:v";
+static char optstr[] = "cdefM:mP:ps:vw:";
 
 int main(int argc, char **argv)
 {
@@ -1067,8 +1153,10 @@ int main(int argc, char **argv)
        char *module = NULL;
        unsigned int i;
        int count = 0, plane_count = 0;
+       unsigned int prop_count = 0;
        struct connector_arg *con_args = NULL;
        struct plane_arg *plane_args = NULL;
+       struct property_arg *prop_args = NULL;
        unsigned int args = 0;
        
        opterr = 0;
@@ -1129,6 +1217,19 @@ int main(int argc, char **argv)
                case 'v':
                        test_vsync = 1;
                        break;
+               case 'w':
+                       prop_args = realloc(prop_args,
+                                          (prop_count + 1) * sizeof *prop_args);
+                       if (prop_args == NULL) {
+                               fprintf(stderr, "memory allocation failed\n");
+                               return 1;
+                       }
+
+                       if (parse_property(&prop_args[prop_count], optarg) < 0)
+                               usage(argv[0]);
+
+                       prop_count++;
+                       break;
                default:
                        usage(argv[0]);
                        break;
@@ -1179,6 +1280,9 @@ int main(int argc, char **argv)
        dump_resource(planes);
        dump_resource(framebuffers);
 
+       for (i = 0; i < prop_count; ++i)
+               set_property(&prop_args[i]);
+
        if (count > 0) {
                set_mode(con_args, count, plane_args, plane_count, test_vsync);
                if (drop_master)