add class for handling button events - signals main thread when event occurs and main thread can check event - supports SW1 press, SW2 press, and SW1 hold

1 files changed, 36 insertions, 3 deletions

diff --git a/main.cpp b/main.cpp
index 2bf100d..5049cc2 100644
--- a/main.cpp
+++ b/main.cpp
@@ -13,9 +13,14 @@
 #include "DOGS102.h"
 #include "NCP5623B.h"
 #include "LayoutStartup.h"
+// button header
+#include "ButtonHandler.h"
 // misc heders
 #include <string>
 
+// only here for button handling example code in main
+#include "font_6x8.h"
+
 // LCD and backlight controllers
 SPI lcd_spi(SPI1_MOSI, SPI1_MISO, SPI1_SCK);
 I2C backlight_i2c(I2C_SDA, I2C_SCL);
@@ -24,6 +29,9 @@ DigitalOut lcd_cd(XBEE_ON_SLEEP, 1);
 DOGS102* lcd;
 NCP5623B* lcd_backlight;
 
+// Button controller
+ButtonHandler* buttons;
+
 // Serial debug port
 Serial debug(USBTX, USBRX);
 
@@ -33,14 +41,39 @@ int main() {
 
     lcd = new DOGS102(lcd_spi, lcd_spi_cs, lcd_cd);
     lcd_backlight = new NCP5623B(backlight_i2c);
-    logInfo("starting...");
 
+    // display startup screen for 3 seconds
     LayoutStartup ls(lcd);
     ls.display();
+    osDelay(3000);
+
+    osThreadId main_id = Thread::gettid();
+    buttons = new ButtonHandler(main_id);
 
     while (true) {
-        logInfo("in loop");
-        osDelay(5000);
+        char buf[16];
+        size_t size;
+
+        osEvent e = Thread::signal_wait(buttonSignal);
+        if (e.status == osEventSignal) {
+            ButtonEvent ev = buttons->getButtonEvent();
+            switch (ev) {
+                case sw1_press:
+                    size = snprintf(buf, sizeof(buf), "SW1 press");
+                    break;
+                case sw1_hold:
+                    size = snprintf(buf, sizeof(buf), "SW1 hold");
+                    break;
+                case sw2_press:
+                    size = snprintf(buf, sizeof(buf), "SW2 press");
+                    break;
+            }
+
+            lcd->clearBuffer();
+            lcd->startUpdate();
+            lcd->writeText(0, 0, font_6x8, buf, size);
+            lcd->endUpdate();
+        }
     }
 
     return 0;