pandora: add tv layer selection helper

[libpicofe.git] / pandora / plat.c

diff --git a/pandora/plat.c b/pandora/plat.c
index f97cb83..fbb670c 100644 (file)
--- a/pandora/plat.c
+++ b/pandora/plat.c
@@ -43,7 +43,7 @@ static void scan_for_filters(void)
 {
        struct dirent *ent;
        int i, count = 0;
-       char **mfilters;
+       const char **mfilters;
        char buff[64];
        DIR *dir;
 
@@ -204,6 +204,41 @@ static int gamma_set(int val, int black_level)
        return do_system(buf);
 }
 
+/* For now, this only switches tv-out to appropriate fb.
+ * Maybe this could control actual layers too? */
+static int switch_layer(int which, int enable)
+{
+       static int was_ovl_enabled = -1;
+       int tv_enabled = 0;
+       char buf[128];
+       int ret;
+
+       if (which != 1)
+               return -1;
+       if (enable == was_ovl_enabled)
+               return 0;
+
+       was_ovl_enabled = -1;
+
+       tv_enabled = read_int_from_file(
+                  "/sys/devices/platform/omapdss/display1/enabled");
+       if (tv_enabled < 0)
+               return -1;
+
+       if (!tv_enabled) {
+               // tv-out not enabled
+               return 0;
+       }
+
+       snprintf(buf, sizeof(buf), "%s/op_tvout.sh -l %d",
+                pnd_script_base, enable);
+       ret = do_system(buf);
+       if (ret == 0)
+               was_ovl_enabled = enable;
+
+       return ret;
+}
+
 struct plat_target plat_target = {
        cpu_clock_get,
        cpu_clock_set,
@@ -211,6 +246,7 @@ struct plat_target plat_target = {
        hwfilter_set,
        lcdrate_set,
        gamma_set,
+       .switch_layer = switch_layer,
 };
 
 int plat_target_init(void)