RP2040: an experiment with AirLift adapter

software/firmware/source/SoftRF/src/driver/WiFi.cpp

@@ -129,20 +129,68 @@ void WiFi_setup()
   // Print hostname.
   Serial.println("Hostname: " + host_name);
 
-  Serial.print(F("Setting soft-AP configuration ... "));
-  WiFi.config(local_IP, gateway, gateway, subnet);
-  Serial.println(F("Ready"));
+  if (station_ssid.length() > 0) {
+    // ... Try to connect to WiFi station.
+    WiFi.begin(station_ssid.c_str(), station_psk.c_str());
+
+    // ... Pritn new SSID
+    Serial.print(F("new SSID: "));
+    Serial.println(WiFi.SSID());
+
+    Serial.println(F("Wait for WiFi connection."));
+
+    // ... Give Wi-Fi 10-20 seconds to connect to station.
+    unsigned long startTime = millis();
+    while (WiFi.status() != WL_CONNECTED &&
+           millis() - startTime < WIFI_STA_TIMEOUT)
+    {
+      Serial.write('.'); Serial.flush();
+      //Serial.print(WiFi.status());
+      delay(500);
+    }
+    Serial.println();
 
-  Serial.print(F("Setting soft-AP ... "));
-  Serial.println(WiFi.beginAP(host_name.c_str(), ap_default_psk) == WL_AP_LISTENING ?
-    F("Ready") : F("Failed!"));
+    // Check connection
+    if (WiFi.status() == WL_CONNECTED) {
+      // print the SSID of the network you're attached to:
+      Serial.print("SSID: ");
+      Serial.println(WiFi.SSID());
+
+#if !defined(ARDUINO_RASPBERRY_PI_PICO)
+      // print your board's IP address:
+      IPAddress ip = WiFi.localIP();
+      Serial.print("IP Address: ");
+      Serial.println(ip);
+#endif /* ARDUINO_RASPBERRY_PI_PICO */
+
+      // print the received signal strength:
+      long rssi = WiFi.RSSI();
+      Serial.print("signal strength (RSSI):");
+      Serial.print(rssi);
+      Serial.println(" dBm");
+    } else {
+      Serial.println(F("Can not connect to WiFi station. Go into AP mode."));
+    }
+  }
 
-  Serial.print(F("IP address: "));
-  Serial.println(WiFi.softAPIP());
+  if (WiFi.status() != WL_CONNECTED) {
+    // Go into software AP mode.
+    Serial.print(F("Setting soft-AP configuration ... "));
+    WiFi.config(local_IP, gateway, gateway, subnet);
+    Serial.println(F("Ready"));
 
-  SoC->WiFi_set_param(WIFI_PARAM_TX_POWER, WIFI_TX_POWER_MED); // 10 dBm
-  SoC->WiFi_set_param(WIFI_PARAM_DHCP_LEASE_TIME, WIFI_DHCP_LEASE_HRS);
-  delay(10);
+    SoC->WiFi_set_param(WIFI_PARAM_TX_POWER, WIFI_TX_POWER_MED); // 10 dBm
+    SoC->WiFi_set_param(WIFI_PARAM_DHCP_LEASE_TIME, WIFI_DHCP_LEASE_HRS);
+
+    Serial.print(F("Setting soft-AP ... "));
+    Serial.println(WiFi.beginAP(host_name.c_str(), ap_default_psk) == WL_AP_LISTENING ?
+      F("Ready") : F("Failed!"));
+
+    delay(10);
+
+//  Serial.print(F("IP address: "));
+//  Serial.println(WiFi.softAPIP());
+  }
 
   Uni_Udp.begin(RFlocalPort);
   Serial.print(F("UDP server has started at port: "));

software/firmware/source/SoftRF/src/platform/RP2040.cpp

@@ -224,6 +224,10 @@ static void RP2040_msc_flush_cb (void)
 }
 #endif /* ARDUINO_ARCH_MBED */
 
+#if defined(ARDUINO_RASPBERRY_PI_PICO) && !defined(EXCLUDE_WIFI)
+SPIClassRP2040 SPI0(spi0, PIN_SPI0_MISO, PIN_SPI0_SS, PIN_SPI0_SCK, PIN_SPI0_MOSI);
+#endif /* EXCLUDE_WIFI */
+
 static void RP2040_setup()
 {
 #if !defined(ARDUINO_ARCH_MBED)
@@ -279,6 +283,9 @@ static void RP2040_setup()
 
 #if defined(ARDUINO_RASPBERRY_PI_PICO)
   RP2040_board = RP2040_RPIPICO;
+#if !defined(EXCLUDE_WIFI)
+  WiFi.setPins(PIN_SPI0_SS, D26, D24, D20, &SPI0);
+#endif /* EXCLUDE_WIFI */
 #elif defined(ARDUINO_RASPBERRY_PI_PICO_W)
   RP2040_board = rp2040.isPicoW() ? RP2040_RPIPICO_W : RP2040_RPIPICO;
 #endif /* ARDUINO_RASPBERRY_PI_PICO */
@@ -601,7 +608,7 @@ static uint32_t RP2040_maxSketchSpace()
 
 static void RP2040_WiFi_set_param(int ndx, int value)
 {
-#if !defined(EXCLUDE_WIFI)
+#if !defined(EXCLUDE_WIFI) && !defined(USE_ARDUINO_WIFI)
   switch (ndx)
   {
   case WIFI_PARAM_TX_POWER:
@@ -630,7 +637,7 @@ static void RP2040_WiFi_set_param(int ndx, int value)
 #endif /* EXCLUDE_WIFI */
 }
 
-#if !defined(EXCLUDE_WIFI)
+#if !defined(EXCLUDE_WIFI) && !defined(USE_ARDUINO_WIFI)
 #include <dhcpserver/dhcpserver.h>
 #endif /* EXCLUDE_WIFI */
 
@@ -641,7 +648,7 @@ union rp2040_ip {
 
 static void RP2040_WiFi_transmit_UDP(int port, byte *buf, size_t size)
 {
-#if !defined(EXCLUDE_WIFI)
+#if !defined(EXCLUDE_WIFI) && !defined(USE_ARDUINO_WIFI)
   union rp2040_ip ipv4;
   IPAddress ClientIP;
   ipv4.addr       = (uint32_t) WiFi.localIP();
@@ -677,15 +684,15 @@ static void RP2040_WiFi_transmit_UDP(int port, byte *buf, size_t size)
 
 static void RP2040_WiFiUDP_stopAll()
 {
-#if !defined(EXCLUDE_WIFI)
+#if !defined(EXCLUDE_WIFI) && !defined(USE_ARDUINO_WIFI)
   WiFiUDP::stopAll();
 #endif /* EXCLUDE_WIFI */
 }
 
 static bool RP2040_WiFi_hostname(String aHostname)
 {
   bool rval = false;
-#if !defined(EXCLUDE_WIFI)
+#if !defined(EXCLUDE_WIFI) && !defined(USE_ARDUINO_WIFI)
   if (RP2040_board == RP2040_RPIPICO_W) {
     WiFi.hostname(aHostname.c_str());
     rval = true;
@@ -696,7 +703,7 @@ static bool RP2040_WiFi_hostname(String aHostname)
 
 static int RP2040_WiFi_clients_count()
 {
-#if !defined(EXCLUDE_WIFI)
+#if !defined(EXCLUDE_WIFI) && !defined(USE_ARDUINO_WIFI)
   WiFiMode_t mode = WiFi.getMode();
 
   switch (mode)

software/firmware/source/SoftRF/src/platform/RP2040.h

@@ -230,13 +230,21 @@ struct rst_info {
 #define USE_WIFI_CUSTOM       true
 #include <ESP8266WiFi.h>
 #define Serial_setDebugOutput(x) ({})
-#define WIFI_STA_TIMEOUT         20000
+#define WIFI_STA_TIMEOUT      20000
 
 /* Experimental */
 #define ENABLE_PROL
 //#define ENABLE_BT_VOICE
 #else
 #define EXCLUDE_WIFI
+//#define EXCLUDE_OTA
+//#define USE_ARDUINO_WIFI
+//#define USE_WIFI_NINA         false
+//#define USE_WIFI_CUSTOM       true
+//#include <WiFiNINA.h>
+//#define Serial_setDebugOutput(x) ({})
+//#define WIFI_STA_TIMEOUT      20000
+
 #define EXCLUDE_BLUETOOTH
 #endif /* ARDUINO_RASPBERRY_PI_PICO_W */
 

software/firmware/source/SoftRF/src/platform/SAMD.cpp

@@ -70,7 +70,9 @@ Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIX_NUM, SOC_GPIO_PIN_LED,
                               NEO_GRB + NEO_KHZ800);
 #endif /* EXCLUDE_LED_RING */
 
+#if defined(EXCLUDE_WIFI)
 char UDPpacketBuffer[4]; // Dummy definition to satisfy build sequence
+#endif /* EXCLUDE_WIFI */
 
 static struct rst_info reset_info = {
   .reason = REASON_DEFAULT_RST,

software/firmware/source/SoftRF/src/ui/Web.cpp

@@ -678,7 +678,23 @@ void handleSettings() {
   server.sendHeader(String(F("Cache-Control")), String(F("no-cache, no-store, must-revalidate")));
   server.sendHeader(String(F("Pragma")), String(F("no-cache")));
   server.sendHeader(String(F("Expires")), String(F("-1")));
+#if !defined(USE_ARDUINO_WIFI)
   server.send ( 200, "text/html", Settings_temp );
+#else
+  char *content = Settings_temp;
+  size_t bytes_left = strlen(Settings_temp);
+  size_t chunk_size;
+
+  server.setContentLength(bytes_left);
+  server.send(200, String(F("text/html")), "");
+
+  do {
+    chunk_size = bytes_left > JS_MAX_CHUNK_SIZE ? JS_MAX_CHUNK_SIZE : bytes_left;
+    server.sendContent(content, chunk_size);
+    content += chunk_size;
+    bytes_left -= chunk_size;
+  } while (bytes_left > 0) ;
+#endif /* USE_ARDUINO_WIFI */
   SoC->swSer_enableRx(true);
   free(Settings_temp);
 }