From c8941003bbfb5624cc41434f1c803d237fdcfac8 Mon Sep 17 00:00:00 2001
From: Thomas Klaehn <thomas.klaehn@perinet.io>
Date: Sun, 26 Apr 2020 08:57:43 +0200
Subject: [PATCH] Add button application

---
 src/application/button/main.cc | 71 ++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 src/application/button/main.cc

diff --git a/src/application/button/main.cc b/src/application/button/main.cc
new file mode 100644
index 0000000..c275b06
--- /dev/null
+++ b/src/application/button/main.cc
@@ -0,0 +1,71 @@
+#include <array>
+
+#include "virtual_timer/VirtualTimerDistributor.h"
+
+#include "platform/cm4/InterruptHandler.h"
+#include "platform/cm4/InterruptGuardian.h"
+#include "platform/cm4/SystemTick.h"
+
+#include "platform/nrf52/gpio.h"
+#include "platform/nrf52/gpiote.h"
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
+
+#include "gpio_interface.h"
+#include "delay.h"
+
+using namespace pinetime::platform;
+using namespace pinetime::virtual_timer;
+
+// IRQs
+nrf52::InterruptGuardian nrf52::InterruptGuardian::instance;
+cm4::InterruptGuardian cm4::InterruptGuardian::instance;
+
+// GPIO events
+nrf52::Gpiote gpiote;
+
+// Timer
+cm4::SystemTick system_tick;
+VirtualTimerDistributor virtual_timer_distributor(system_tick.instance());
+pinetime::Delay delay;
+
+
+enum {
+    PIN_NUMBER_BUTTON_1 = 13,
+    PIN_NUMBER_BUTTON_2 = 14,
+    PIN_NUMBER_BUTTON_3 = 15,
+    PIN_NUMBER_BUTTON_4 = 16,
+    PIN_NUMBER_LED_1 = 17,
+    PIN_NUMBER_LED_2 = 18,
+    PIN_NUMBER_LED_3 = 19,
+    PIN_NUMBER_LED_4 = 20
+};
+
+// LEDs
+nrf52::Gpio led_1(PIN_NUMBER_LED_1);
+nrf52::Gpio led_2(PIN_NUMBER_LED_2);
+nrf52::Gpio led_3(PIN_NUMBER_LED_3);
+nrf52::Gpio led_4(PIN_NUMBER_LED_4);
+std::array<nrf52::Gpio *, 4> leds = {&led_1, &led_2, &led_3, &led_4};
+
+// Buttons
+nrf52::Gpio button_1(PIN_NUMBER_BUTTON_1);
+nrf52::Gpio button_2(PIN_NUMBER_BUTTON_2);
+nrf52::Gpio button_3(PIN_NUMBER_BUTTON_3);
+nrf52::Gpio button_4(PIN_NUMBER_BUTTON_4);
+
+int main(void)
+{
+    button_1.set_direction(pinetime::interfaces::GpioInterface::direction::IN, true);
+    cm4::InterruptGuardian::enable_interrupts();
+    while(true) {
+        for(auto it = leds.begin(); it != leds.end(); ++it) {
+            uint32_t b1 = button_1.get();
+            if(b1) {
+                nrf52::Gpio * led = *it;
+                led->toggle();
+            }
+        }
+    }
+    return 0;
+}