Add frdm-mcxw71 support

tutorials/nxp/frdm-mcxw71/minimal/main.c

@@ -1,5 +1,10 @@
 // Copyright (c) 2026 Cesanta Software Limited
 // All rights reserved
+//
+// IPv4 over IEEE 802.15.4 on FRDM-MCXW71, Mongoose built-in TCP/IP stack.
+// The radio carries Ethernet frames, channel 15, PAN ID 0xabcd. With the
+// FRDM-RW612 eth_radio_bridge tutorial, gets an address from the LAN's DHCP
+// server and is reachable from the LAN. Serves pages on ports 80 and 443
 
 #include "hal.h"
 #include "mongoose.h"
@@ -14,19 +19,71 @@ uint64_t mg_millis(void) {
   return hal_get_tick();
 }
 
+// Self-signed P-256 certificate and key for the HTTPS listener. Created by:
+//   openssl ecparam -genkey -name prime256v1 -noout -out key.pem
+//   openssl req -x509 -key key.pem -out cert.pem -days 3650 -subj /CN=mg
+#define TLS_CERT                                                       \
+  "-----BEGIN CERTIFICATE-----\n"                                      \
+  "MIIBgjCCASegAwIBAgIUIJOq77Qn7lHbH6WseMemeqorR50wCgYIKoZIzj0EAwIw\n" \
+  "FjEUMBIGA1UEAwwLbnVjbGVvLWg3MjMwHhcNMjYxMDEyMTUwMjE5WhcNMzYxMDA5\n" \
+  "MTUwMjE5WjAWMRQwEgYDVQQDDAtudWNsZW8taDcyMzBZMBMGByqGSM49AgEGCCqG\n" \
+  "SM49AwEHA0IABB6IQJNmzrsdQL+2BnZYS7GYOaj7sz8f6cjBmz3n8D9Em19XodlU\n" \
+  "uy4ybIvyhr766lL0ERoTmMUivb/lGmzx9C+jUzBRMB0GA1UdDgQWBBQqxMuc4gj7\n" \
+  "MTMzreWlRMNI3QMqTzAfBgNVHSMEGDAWgBQqxMuc4gj7MTMzreWlRMNI3QMqTzAP\n" \
+  "BgNVHRMBAf8EBTADAQH/MAoGCCqGSM49BAMCA0kAMEYCIQDY4xaJpuxq6b3rHK3b\n" \
+  "lOIQyfkQX+orCRqQUkseplqpqwIhAKswZFNn+2zUNRRNY8+cHmdIwmdpsmxtoWYP\n" \
+  "BCjX++LI\n"                                                         \
+  "-----END CERTIFICATE-----\n"
+
+#define TLS_KEY                                                        \
+  "-----BEGIN EC PRIVATE KEY-----\n"                                   \
+  "MHcCAQEEIJ/GBl0TlD52q9PMg1KWaNIdXqp8b/HyIsABmBpqC+O1oAoGCCqGSM49\n" \
+  "AwEHoUQDQgAEHohAk2bOux1Av7YGdlhLsZg5qPuzPx/pyMGbPefwP0SbX1eh2VS7\n" \
+  "LjJsi/KGvvrqUvQRGhOYxSK9v+UabPH0Lw==\n"                             \
+  "-----END EC PRIVATE KEY-----\n"
+
+static void http_ev_handler(struct mg_connection *c, int ev, void *ev_data) {
+  if (ev == MG_EV_ACCEPT && c->is_tls) {  // Accepted on the https:// listener
+    struct mg_tls_opts opts = {.cert = mg_str(TLS_CERT),
+                               .key = mg_str(TLS_KEY)};
+    mg_tls_init(c, &opts);
+  } else if (ev == MG_EV_HTTP_MSG) {
+    struct mg_http_message *hm = (struct mg_http_message *) ev_data;
+    if (mg_match(hm->uri, mg_str("/api/tick"), NULL)) {
+      mg_http_reply(c, 200, "", "{%m:%llu}\n", MG_ESC("tick"), hal_get_tick());
+    } else if (mg_match(hm->uri, mg_str("/api/crash"), NULL)) {
+      __asm volatile("udf #0");  // Trigger HardFault
+    } else {
+      mg_http_reply(c, 200, "",
+                    "Hi from Mongoose!\n"
+                    "tick:     %llu\n"
+                    "ram used: %zu\n"
+                    "ram free: %zu\n",
+                    hal_get_tick(), hal_ram_used(), hal_ram_free());
+    }
+  }
+}
+
 int main(void) {
   hal_clock_init();
   hal_uart_init(UART_DEBUG, 115200);
   mg_log_set_fn(log_fn, UART_DEBUG);
 
+  if (!hal_radio_init()) MG_ERROR(("Radio init failed"));
+
+  struct mg_mgr mgr;
+  mg_mgr_init(&mgr);
+  mg_http_listen(&mgr, "http://0.0.0.0:80", http_ev_handler, NULL);
+  mg_http_listen(&mgr, "https://0.0.0.0:443", http_ev_handler, NULL);
+  mg_mqtt_init(&mgr);
+
   MG_INFO(("Initialised. CPU clock: %lu MHz", SystemCoreClock / 1000000));
   MG_INFO(("RAM used: %zu, free: %zu", hal_ram_used(), hal_ram_free()));
+  MG_INFO(("Crash record: %M", mg_print_crash_record));
 
   for (;;) {
-    static uint64_t timer;
-    if (hal_timer_expired(&timer, 1000, hal_get_tick())) {
-      MG_INFO(("Hi from Mongoose, tick %llu", hal_get_tick()));
-    }
+    mg_mgr_poll(&mgr, 0);
+    mg_mqtt_poll(&mgr);
   }
 
   return 0;