add comments, fix remote control, work on local control

1 files changed, 46 insertions, 9 deletions

diff --git a/project/Core/Src/Project/local_control.c b/project/Core/Src/Project/local_control.c
index ce40c22..8b12bc3 100644
--- a/project/Core/Src/Project/local_control.c
+++ b/project/Core/Src/Project/local_control.c
@@ -1,5 +1,6 @@
 /*
  * local_control.c
+ * Code related to the local control mode
  *
  *  Created on: Nov 4, 2025
  *      Author: sowgro
@@ -11,15 +12,43 @@
 #include "GPIO.h"
 #include "project.h"
 
+int click_count = 0;
+uint32_t last_press = 0;
+uint32_t time_down = 0;
+int hold_pending = 0;
+
+/**
+ * Initialize local control mode (does not enable it)
+ */
 void local_control_init() {
 	GPIO_Init();
 	NVIC_EnableIRQ(EXTI9_5_IRQn);
 }
 
+/**
+ * Logic that should be called constantly from the main loop.
+ */
 void local_control_loop() {
-
+	uint32_t now = systick_get_count();
+	if (hold_pending) {
+		hold_pending = 0;
+		printf("Hold click action\r\n");
+	}
+	if (now - last_press > 10000) {
+		last_press = 0;
+		switch(click_count) {
+		case 1:
+			printf("Single click action\r\n"); break;
+		case 2:
+			printf("Double click action\r\n"); break;
+		}
+		click_count = 0;
+	}
 }
 
+/**
+ * Handles external button press
+ */
 void EXTI9_5_IRQHandler() {
 	static int prevStatus = -1;
     if (~EXTI->PR1 & EXTI_PR1_PIF9)
@@ -32,25 +61,33 @@ void EXTI9_5_IRQHandler() {
     int status = !!(GPIOA->IDR & GPIO_PIN_9);
     if (prevStatus == status)
     	return;
+    prevStatus = status;
 
     handle_press(status);
 }
 
-uint32_t time_down = 0;
+/**
+ * Logs button information
+ */
 void handle_press(int pressed) {
 	uint32_t now = systick_get_count();
 	if (pressed) {
 		time_down = now;
 	} else {
-		printf("now: %i, time_down: %i diff: %i\r\n", now, time_down, now - time_down);
-		if (now - time_down < 10) {
-			//ignore
-		} else if (now - time_down < 10000) {
-			printf("SHORT PRESS\r\n");
+//		printf("now: %i, time_down: %i diff: %i\r\n", now, time_down, now - time_down);
+		if (/*(now - time_down) < 10 ||*/ !time_down) {
+			printf("ignored\r\n");
+//			printf("now: %i, time_down: %i diff: %i\r\n", now, time_down, now - time_down);
+		} else if ((now - time_down) < 10000) {
+//			printf("SHORT PRESS\r\n");
+			time_down = 0;
+			last_press = now;
+			click_count++;
 		} else {
-			printf("LONG_PRESS\r\n");
+//			printf("LONG PRESS\r\n");
+			hold_pending = 1;
+			time_down = 0;
 		}
-		time_down = 0;
 	}
 }