add manual controls menu, remove demu screens

main/liquid/gui.c

@@ -8,10 +8,8 @@
 #include "drawing.h"
 
 static void gui_thread(void *arg);
-static void gui_tick(TimerHandle_t xTimer);
 
 TaskHandle_t hGuiThread = NULL;
-static TimerHandle_t hTicker = NULL;
 
 void gui_init() {
     printf("GUI init\n");
@@ -20,20 +18,6 @@ void gui_init() {
 
     int rv = xTaskCreate(gui_thread, "gui", 4096, NULL, 6, &hGuiThread);
     assert (rv == pdPASS);
-
-    hTicker = xTimerCreate(
-        "gui_tick", /* name */
-        pdMS_TO_TICKS(10), /* period/time */
-        pdTRUE, /* auto reload */
-        (void*)0, /* timer ID */
-        gui_tick); /* callback */
-    assert(hTicker != NULL);
-
-    xTimerStart(hTicker, portMAX_DELAY);
-}
-
-static void gui_tick(TimerHandle_t xTimer) {
-    xTaskNotify(hGuiThread, 0b10000, eSetBits);
 }
 
 /**
@@ -59,8 +43,7 @@ static void __attribute__((noreturn)) gui_thread(void *arg) {
         xTaskNotifyWait(0, ULONG_MAX, &value, pdMS_TO_TICKS(10));
         uint32_t time = xTaskGetTickCount();
 
-        if (value & 0b10000) {
-            // TICK
+        if (time - last_time >= pdMS_TO_TICKS(2)) {
             want_repaint |= Liquid_handleTick(liquid, time - last_time);
             last_time = time;
         }