From bdf445b708c8556c0006b0391cfc6b08cab55b49 Mon Sep 17 00:00:00 2001
From: joran2738 <101818067+joran2738@users.noreply.github.com>
Date: Tue, 7 Nov 2023 23:37:16 +0100
Subject: [PATCH] added some UDP server code

initialising UDP server succesfull, callback running
have not yet tried to receive a broadcast
---
 project/Core/Inc/UDP_broadcast.h |  5 +++
 project/Core/Src/UDP_broadcast.c | 64 ++++++++++++++++++++++++++++++++
 project/Core/Src/main.c          | 34 ++---------------
 3 files changed, 73 insertions(+), 30 deletions(-)

diff --git a/project/Core/Inc/UDP_broadcast.h b/project/Core/Inc/UDP_broadcast.h
index 07abd29..65ac3be 100644
--- a/project/Core/Inc/UDP_broadcast.h
+++ b/project/Core/Inc/UDP_broadcast.h
@@ -40,5 +40,10 @@ char* get_owner_details_name(owner_details_t*);
 char* get_owner_details_surname(owner_details_t*);
 char* get_owner_details_reply(owner_details_t*);
 
+err_t init_UDP_server();
+
+
+
+
 
 #endif /* INC_UDP_BROADCAST_H_ */
diff --git a/project/Core/Src/UDP_broadcast.c b/project/Core/Src/UDP_broadcast.c
index 8ae2aa1..3f75cbe 100644
--- a/project/Core/Src/UDP_broadcast.c
+++ b/project/Core/Src/UDP_broadcast.c
@@ -227,4 +227,68 @@ char* get_owner_details_reply(owner_details_t *owner){
 	return owner->reply;
 }
 
+/**
+ * @fn void udp_receive_callback(void*, struct udp_pcb*, struct pbuf*, const ip_addr_t*, u16_t)
+ * @brief
+ *
+ * @param arg
+ * @param upcb
+ * @param p
+ * @param addr
+ * @param port
+ */
+
+static void udp_receive_callback(void *arg, struct udp_pcb *upcb, struct pbuf *p, const ip_addr_t *addr, u16_t port){
+	int i;
+	int len;
+	char *pc;
+	char data[1024];
+	char source_ip_str[16];
+
+	// Convert the source IP address to a string for printing.
+	ipaddr_ntoa_r(addr, source_ip_str, sizeof(source_ip_str));
+
+	if (p != NULL) {
+		pc = (char*)p->payload;
+		len = p->tot_len;
+
+		for(i = 0; i < len; i++) {
+			data[i] = pc[i];
+		}
+		pbuf_free(p);
+
+		LOG_DEBUG(TAG,"received data from %s at port: %d: %s",source_ip_str,port,data);
+	}
+}
+
+/**
+ * @fn err_t init_UDP_server()
+ * @brief
+ *
+ * @return
+ */
+
+err_t init_UDP_server(){
+	struct udp_pcb *connection;
+	err_t err;
+	LOG_INFO(TAG,"initialising UDP server");
+	connection = udp_new();
+	if(connection != NULL){
+		err = udp_bind(connection, IP_ANY_TYPE, 64000);
+	    if(err == ERR_OK){
+		    udp_recv(connection, udp_receive_callback, NULL);
+		    LOG_INFO(TAG,"initialising UDP server succesfull, callback running");
+		}
+		else{
+		    udp_remove(connection);
+		    LOG_WARN(TAG,"initialising UDP server failed, err not ok");
+		}
+	}
+	else{
+		LOG_WARN(TAG,"initialising UDP server failed, connection is null");
+	}
+	return err;
+}
+
+
 
diff --git a/project/Core/Src/main.c b/project/Core/Src/main.c
index 4565b6e..99f6437 100644
--- a/project/Core/Src/main.c
+++ b/project/Core/Src/main.c
@@ -25,6 +25,7 @@
 #define LOGGER_LEVEL_ALL
 #include "log.h"
 #include "UDP_broadcast.h"
+#include "udp.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -110,40 +111,13 @@ int main(void)
   MX_LWIP_Init();
   MX_QUADSPI_Init();
   /* USER CODE BEGIN 2 */
+    init_UDP_server();
     owner_details_t owner;
-    owner_details_t* owner_error = NULL;
-    char* test_error = NULL;
-  	LOG_DEBUG(TAG,"\nhelloworld");
-  	LOG_DEBUG(TAG,"owner1:%s",get_owner_details_reply(&owner));
+
   	if(!set_owner_details(&owner, "joran", "vn")){
   		LOG_DEBUG(TAG,"error");;
   	}
-  	LOG_DEBUG(TAG,"owner2:%s",get_owner_details_reply(&owner));
-
-  	if(!set_owner_details(&owner, "joran", "Van Nieuwenhoven")){
-  		LOG_DEBUG(TAG,"error");
-  	}
-  	LOG_DEBUG(TAG,"owner3:%s",get_owner_details_reply(&owner));
-
-  	if(!set_owner_details(&owner, "joran", "")){
-  		LOG_DEBUG(TAG,"error");
-  	}
-  	LOG_DEBUG(TAG,"owner4:%s",get_owner_details_reply(&owner));
-
-  	if(!set_owner_details(&owner, "joran", test_error)){
-  		LOG_DEBUG(TAG,"error setting owner details");
-  	}
-  	LOG_DEBUG(TAG,"owner5:%s",get_owner_details_reply(&owner));
-
-  	if(!set_owner_details(&owner, test_error, "Van Nieuwenhoven")){
-  		LOG_DEBUG(TAG,"error setting owner details");
-  	}
-  	LOG_DEBUG(TAG,"owner6:%s",get_owner_details_reply(&owner));
-
-  	if(!set_owner_details(owner_error, test_error, "Van Nieuwenhoven")){
-  		LOG_DEBUG(TAG,"error setting owner details");
-  	}
-  	LOG_DEBUG(TAG,"owner7:%s",get_owner_details_reply(owner_error));
+  	LOG_DEBUG(TAG,"%s",get_owner_details_reply(&owner));
   /* USER CODE END 2 */
 
   /* Infinite loop */