tcp test

src/main.c

@@ -1,24 +1,26 @@
-#include <stdio.h>
-#include "pico/stdlib.h"
-#include "pico/cyw43_arch.h"
-#include <stdbool.h>
+#include <net/net.h>
 
 int main(void) {
     stdio_init_all();
 
-    // Initialise the Wi-Fi chip
-    if (cyw43_arch_init()) {
-        printf("Wi-Fi init failed\n");
-        return -1;
+    net_creds_t creds = {
+        .ssid = "5",
+        .password = "nevem123"
+    };
+
+    net_server_t* server = Net_Init(&creds);
+    if (!server) {
+        printf("Failed to initialize network\n");
+        return 1;
     }
 
-    // Example to turn on the Pico W LED
-    bool led_on = true; 
+    if (!Net_Listen(server)) {
+        printf("Failed to start server\n");
+        Net_Destroy(server);
+        return 1;
+    }
+
+    Net_Destroy(server);
     
-
-    while (true) {
-        cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, led_on);
-        led_on = !led_on; // Toggle LED state
-        sleep_ms(1000);
-    }
+    return 0;
 }

src/net/net.c

@@ -0,0 +1,117 @@
+#include <net/net.h>
+#include <lwip/tcp.h>
+#include <stdlib.h>
+#include <string.h>
+
+static const char* link_status_to_string(int status) {
+    switch (status) {
+        case CYW43_LINK_DOWN:
+            return "LINK_DOWN";
+        case CYW43_LINK_JOIN:
+            return "LINK_JOIN";
+        case CYW43_LINK_NOIP:
+            return "LINK_NOIP";
+        case CYW43_LINK_UP:
+            return "LINK_UP";
+        case CYW43_LINK_FAIL:
+            return "LINK_FAIL";
+        case CYW43_LINK_NONET:
+            return "LINK_NONET";
+        case CYW43_LINK_BADAUTH:
+            return "LINK_BADAUTH";
+        default:
+            return "LINK_UNKNOWN";
+    }
+}
+
+net_server_t* Net_Init(net_creds_t* creds) {
+    if (!creds) {
+        printf("Invalid credentials\n");
+        return NULL;
+    }
+
+    if (creds->ssid[0] == '\0') {
+        printf("SSID is empty\n");
+        return NULL;
+    }
+    
+    // Init Wi-Fi
+    if (cyw43_arch_init()) {
+        printf("Wi-Fi init failed\n");
+        return NULL;
+    }
+
+    cyw43_arch_enable_sta_mode();
+
+    printf("Connecting to SSID: %s\n", creds->ssid);
+
+    int rc = cyw43_arch_wifi_connect_timeout_ms(
+        creds->ssid,
+        creds->password,
+        CYW43_AUTH_WPA2_AES_PSK,
+        15000
+    );
+
+    if (rc) {
+        int link = cyw43_tcpip_link_status(&cyw43_state, CYW43_ITF_STA);
+        printf("Wi-Fi connection failed rc=%d status=%s(%d)\n", rc, link_status_to_string(link), link);
+        return NULL;
+    }
+
+    int link = cyw43_tcpip_link_status(&cyw43_state, CYW43_ITF_STA);
+    printf("Wi-Fi connected status=%s(%d)\n", link_status_to_string(link), link);
+
+    net_server_t* svr = (net_server_t*)malloc(sizeof(net_server_t));
+    if (!svr) {
+        printf("Failed to allocate server memory\n");
+        return NULL;
+    }
+
+    memset(svr, 0, sizeof(net_server_t)); // Zero out
+
+    return svr;
+}
+
+bool Net_Listen(net_server_t* server) {
+    if (!server) {
+        printf("Server not initialized\n");
+        return false;
+    }
+
+    struct tcp_pcb* pcb = tcp_new();
+    if (!pcb) {
+        printf("Failed to create TCP PCB\n");
+        return false;
+    }
+    
+    err_t err = tcp_bind(pcb, IP_ADDR_ANY, server->port);
+    if (err != ERR_OK) {
+        printf("Failed to bind TCP PCB: %d\n", err);
+        tcp_close(pcb);
+        return false;
+    }
+    
+    struct tcp_pcb* listen_pcb = tcp_listen_with_backlog(pcb, server->maxClients);
+    if (!listen_pcb) {
+        printf("Failed to listen on TCP PCB\n");
+        tcp_close(pcb);
+        return false;
+    }
+
+    // Turn on LED
+    cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, true);
+
+    while (true) {
+        // TODO: Accept clients and handle data
+        sleep_ms(10);
+    }
+
+    return true;
+}
+
+void Net_Destroy(net_server_t* server) {
+    if (server) {
+        // TODO: Disconnect gracefully
+        free(server);
+    }
+}