Add CYW driver

Author: scaprile

mongoose.c

@@ -1107,6 +1107,7 @@ char *mg_random_str(char *buf, size_t len);
 uint32_t mg_crc32(uint32_t crc, const char *buf, size_t len);
 uint64_t mg_millis(void);  // Return milliseconds since boot
 bool mg_path_is_sane(const struct mg_str path);
+void mg_delayms(unsigned int ms);
 
 #define MG_U32(a, b, c, d)                                         \
   (((uint32_t) ((a) &255) << 24) | ((uint32_t) ((b) &255) << 16) | \
@@ -2869,6 +2870,7 @@ extern struct mg_tcpip_driver mg_tcpip_driver_xmc7;
 extern struct mg_tcpip_driver mg_tcpip_driver_ppp;
 extern struct mg_tcpip_driver mg_tcpip_driver_pico_w;
 extern struct mg_tcpip_driver mg_tcpip_driver_rw612;
+extern struct mg_tcpip_driver mg_tcpip_driver_cyw;
 
 // Drivers that require SPI, can use this SPI abstraction
 struct mg_tcpip_spi {
@@ -2961,6 +2963,57 @@ struct mg_profitem {
 #endif
 
 
+#if MG_ENABLE_TCPIP && defined(MG_ENABLE_DRIVER_CYW) && MG_ENABLE_DRIVER_CYW
+
+struct mg_tcpip_spi_ {
+  void *spi;              // Opaque SPI bus descriptor
+  void (*begin)(void *);  // SPI begin: slave select low
+  void (*end)(void *);    // SPI end: slave select high
+  void (*txn)(void *, uint8_t *, uint8_t *,
+              size_t len);  // SPI transaction: write-read len bytes
+};
+
+struct mg_tcpip_driver_cyw_firmware {
+  const uint8_t * code_addr;
+  size_t code_len;
+  const uint8_t * nvram_addr;
+  size_t nvram_len;
+  const uint8_t * clm_addr;
+  size_t clm_len;
+};
+
+struct mg_tcpip_driver_cyw_data {
+  struct mg_tcpip_spi_ *spi;
+  struct mg_tcpip_driver_cyw_firmware *fw;
+  char *ssid;
+  char *pass;
+  char *apssid;
+  char *appass;
+  uint8_t security; // TBD
+  uint8_t apsecurity; // TBD
+  uint8_t apchannel;
+  bool apmode;      // start in AP mode; 'false' starts connection to 'ssid' if not NULL
+};
+
+//#define MG_TCPIP_DRIVER_INIT(mgr)                                 \
+//  do {                                                            \
+//    static struct mg_tcpip_driver_cyw_data driver_data_;          \
+//    static struct mg_tcpip_if mif_;                               \
+//    MG_SET_WIFI_CONFIG(&driver_data_);                            \
+//    mif_.ip = MG_TCPIP_IP;                                        \
+//    mif_.mask = MG_TCPIP_MASK;                                    \
+//    mif_.gw = MG_TCPIP_GW;                                        \
+//    mif_.driver = &mg_tcpip_driver_pico_w;                        \
+//    mif_.driver_data = &driver_data_;                             \
+//    mif_.recv_queue.size = 8192;                                  \
+//    mif_.mac[0] = 2; /* MAC read from OTP at driver init */       \
+//    mg_tcpip_init(mgr, &mif_);                                    \
+//    MG_INFO(("Driver: cyw, MAC: %M", mg_print_mac, mif_.mac)); \
+//  } while (0)
+
+#endif
+
+
 #if MG_ENABLE_TCPIP && defined(MG_ENABLE_DRIVER_IMXRT) && MG_ENABLE_DRIVER_IMXRT
 
 struct mg_tcpip_driver_imxrt_data {