1 files changed, 46 insertions, 0 deletions
diff --git a/src/services/gsp.rs b/src/services/gsp.rs
new file mode 100644
index 0000000..90ed3b2
--- /dev/null
+++ b/src/services/gsp.rs
@@ -0,0 +1,46 @@
+use ::Result;
+
+use ::raw::services::gsp;
+
+pub enum Event {
+    Psc0,
+    Psc1,
+    VBlank0,
+    VBlank1,
+    PPF,
+    P3D,
+    DMA
+}
+
+fn to_raw_event(ev: Event) -> gsp::GSP_Event {
+    use ::raw::services::gsp::GSP_Event::*;
+    use self::Event::*;
+
+    match ev {
+        Psc0 => GSPEVENT_PSC0,
+        Psc1 => GSPEVENT_PSC1,
+        VBlank0 => GSPEVENT_VBlank0,
+        VBlank1 => GSPEVENT_VBlank1,
+        PPF => GSPEVENT_PPF,
+        P3D => GSPEVENT_P3D,
+        DMA => GSPEVENT_DMA
+    }
+}
+
+/// Sleep until GSP event fires.
+///
+/// # Examples
+///
+/// Wait for VBlank.
+///
+/// ```
+/// use ctru::services::apt;
+/// apt::main_loop(|| {
+///     wait_for_event(Event::VBlank0);
+/// });
+pub fn wait_for_event(ev: Event) -> () {
+    unsafe {
+        // TODO second argument?
+        gsp::gspWaitForEvent(to_raw_event(ev), 0);
+    }
+}