From d5dac33672ae1e940b3fda4ee4f4e940229d996f Mon Sep 17 00:00:00 2001
From: sowgro <tpoke.ferrari@gmail.com>
Date: Tue, 4 Nov 2025 23:34:37 -0500
Subject: get most interrupt handlers working for project pt2

---
 project/Core/Src/Project/local_control.c  | 16 +++++++++++++---
 project/Core/Src/Project/player_actions.c |  1 +
 project/Core/Src/Project/project.c        | 23 ++++++++++++++++++++---
 project/Core/Src/Project/remote_control.c | 24 ++++++++++++++++--------
 4 files changed, 50 insertions(+), 14 deletions(-)

(limited to 'project/Core/Src/Project')

diff --git a/project/Core/Src/Project/local_control.c b/project/Core/Src/Project/local_control.c
index 236e555..1ddcd2a 100644
--- a/project/Core/Src/Project/local_control.c
+++ b/project/Core/Src/Project/local_control.c
@@ -5,9 +5,13 @@
  *      Author: sowgro
  */
 
+#include <stm32l4xx.h>
+#include <stdio.h>
+#include "GPIO.h"
+
 void local_control_start() {
 	GPIO_Init();
-	NVIC_Enable_IRQ(XTI15_10_IRQn);
+	NVIC_EnableIRQ(EXTI9_5_IRQn);
 }
 
 void local_control_loop() {
@@ -15,9 +19,15 @@ void local_control_loop() {
 }
 
 void local_control_stop() {
-
+	NVIC_DisableIRQ(EXTI15_10_IRQn);
 }
 
-void XTI15_10_IRQHandler() {
+void EXTI9_5_IRQHandler() {
+    if (~EXTI->PR1 & EXTI_PR1_PIF9)
+    	return;
+
+    EXTI->PR1 |= EXTI_PR1_PIF9;
 
+    int status = !(GPIOC->IDR & GPIO_PIN_9);
+    printf("Other %i\r\n", status);
 }
diff --git a/project/Core/Src/Project/player_actions.c b/project/Core/Src/Project/player_actions.c
index 4ee2dfb..39b62df 100644
--- a/project/Core/Src/Project/player_actions.c
+++ b/project/Core/Src/Project/player_actions.c
@@ -6,6 +6,7 @@
  */
 
 #include <stdio.h>
+#include <stm32l4xx.h>
 #include "player_actions.h"
 #include "song_info.h"
 #include "song.h"
diff --git a/project/Core/Src/Project/project.c b/project/Core/Src/Project/project.c
index a939879..be329fa 100644
--- a/project/Core/Src/Project/project.c
+++ b/project/Core/Src/Project/project.c
@@ -8,19 +8,30 @@
 #include <string.h>
 #include <stdint.h>
 #include <stdio.h>
+#include <stm32l4xx.h>
 #include "project.h"
 #include "player_actions.h"
 #include "hw4.h"
-#include "player_actions.h"
+#include "local_control.h"
+#include "remote_control.h"
+#include "GPIO.h"
 
 #define LOCAL_MODE (1)
 #define REMOTE_MODE (2)
 
+static uint8_t state = STOPPED_STATE;
+
+uint8_t *project_get_state() {
+	return &state;
+}
+
 void project_run() {
 	int mode = LOCAL_MODE;
+	local_control_start();
+//	remote_control_start();
 
 	GPIO_Init();
-	NVIC_EnableIRQ(EXTI9_5_IRQn);
+	NVIC_EnableIRQ(EXTI15_10_IRQn);
 
 	for (;;) {
 		switch (mode) {
@@ -35,8 +46,14 @@ void project_run() {
 	}
 }
 
-void EXTI9_5_IRQHandler() {
+void EXTI15_10_IRQHandler() {
+    if (~EXTI->PR1 & EXTI_PR1_PIF13)
+    	return;
+
+    EXTI->PR1 |= EXTI_PR1_PIF13;
 
+	int status = !(GPIOC->IDR & GPIO_PIN_13);
+	printf("%i\r\n", status);
 }
 
 
diff --git a/project/Core/Src/Project/remote_control.c b/project/Core/Src/Project/remote_control.c
index 905f966..dd48cb7 100644
--- a/project/Core/Src/Project/remote_control.c
+++ b/project/Core/Src/Project/remote_control.c
@@ -5,9 +5,15 @@
  *      Author: sowgro
  */
 
+#include <stm32l4xx.h>
+#include <stdio.h>
+#include <string.h>
+#include "player_actions.h"
+#include "UART.h"
+#include "project.h"
+
 static char buffer[80];
 static char* cur = buffer;
-static uint8_t state = STOPPED_STATE;
 
 void remote_control_start() {
     NVIC_EnableIRQ (USART2_IRQn);
@@ -24,7 +30,8 @@ void remote_control_stop() {
 
 }
 
-static void parse_input(char buffer[], uint8_t *state) {
+static void parse_input(char buffer[]) {
+	uint8_t *state = project_get_state();
 	if (!strcmp(buffer, "HELP")) {
 		help();
 	}
@@ -48,23 +55,24 @@ static void parse_input(char buffer[], uint8_t *state) {
 	}
 }
 
+#include "systick.h"
 void USART2_IRQHandler() {
 	int ch = USART_Read(USART2);
-	remote_control_parse_input(ch);
+	putchar(ch);
 	if (!ch)
-		continue;
+		return;
 	if (ch == '\r') {
 		*cur = 0;
-		handle_input(buffer, &state);
+		parse_input(buffer);
 		cur = buffer;
-		continue;
+		return;
 	}
 	if (ch == 0x08 || ch == 0x7F) {
 		if (cur <= buffer)
-			continue;
+			return;
 		cur--;
 		printf("\b \b");
-		continue;
+		return;
 	}
 	*cur++ = ch;
 }
-- 
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