fix buttons working, add basic brightness control

firmware/app/ui/temp_ui.c

@@ -0,0 +1,43 @@
+/*
+ * temp_ui.c: temporary ui shit until I can write something better
+ */
+
+#include "ch32x035_conf.h"
+#include "btn.h"
+
+#include "led/matrix.h"
+
+
+
+static uint32_t brt = 28;
+
+
+
+void brt_set(uint8_t idx)
+{
+    switch (idx) {
+        case 1: {
+            if (brt > 4)
+                brt--;
+            break;
+        }
+        case 2: {
+            brt++;
+            if (brt > 44) brt = 44;
+            break;
+        }
+    }
+
+    aw20x_set_dim_global(&awled, brt);
+}
+
+void tempui_init()
+{
+    btn[2].cb_push = brt_set;
+    btn[2].cb_hold = brt_set;
+    btn[2].repeat = 200;
+
+    btn[1].cb_push = brt_set;
+    btn[1].cb_hold = brt_set;
+    btn[1].repeat = 200;
+}