// Copyright (c) 2023 Cesanta Software Limited // All rights reserved #include "hal.h" #include "mongoose.h" #include "main.h" #include "cmsis_os.h" #define BLINK_PERIOD_MS 1000 // LED blinking period in millis void mg_random(void *buf, size_t len) { // Use on-board RNG extern RNG_HandleTypeDef hrng; for (size_t n = 0; n < len; n += sizeof(uint32_t)) { uint32_t r; HAL_RNG_GenerateRandomNumber(&hrng, &r); memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r)); } } static void timer_fn(void *arg) { struct mg_tcpip_if *ifp = arg; // And show const char *names[] = {"down", "up", "ready"}; // network stats MG_INFO(("Ethernet: %s, IP: %M, rx:%u, tx:%u, dr:%u, er:%u", names[ifp->state], mg_print_ip4, &ifp->ip, ifp->nrecv, ifp->nsent, ifp->ndrop, ifp->nerr)); } static void server(const void *args) { struct mg_mgr mgr; // Initialise Mongoose event manager mg_mgr_init(&mgr); // and attach it to the interface mg_log_set(MG_LL_DEBUG); // Set log level // Initialise Mongoose network stack // Specify MAC address, and IP/mask/GW in network byte order for static // IP configuration. If IP/mask/GW are unset, DHCP is going to be used struct mg_tcpip_driver_stm32_data driver_data = {.mdc_cr = 4}; struct mg_tcpip_if mif = {.mac = GENERATE_LOCALLY_ADMINISTERED_MAC(), .driver = &mg_tcpip_driver_stm32, .driver_data = &driver_data}; mg_tcpip_init(&mgr, &mif); mg_timer_add(&mgr, BLINK_PERIOD_MS, MG_TIMER_REPEAT, timer_fn, &mif); MG_INFO(("MAC: %M. Waiting for IP...", mg_print_mac, mif.mac)); while (mif.state != MG_TCPIP_STATE_READY) { mg_mgr_poll(&mgr, 0); } MG_INFO(("Initialising application...")); extern void device_dashboard_fn(struct mg_connection *, int, void *, void *); mg_http_listen(&mgr, "http://0.0.0.0", device_dashboard_fn, NULL); MG_INFO(("Starting event loop")); for (;;) mg_mgr_poll(&mgr, 1); // Infinite event loop (void) args; } static void blinker(const void *args) { for (;;) { HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_7); // Blink On-board blue LED osDelay(BLINK_PERIOD_MS); // CMSIS-RTOS v1 uses milliseconds } (void) args; } extern void mx_init(void); osThreadDef(server, osPriorityNormal, 1, 8192); // Create the server thread with a stack size of 8KB osThreadDef(blinker, osPriorityNormal, 1, 0); // Create the blinker thread with default stack size int main(void) { // this is not actually baremetal main() but the "main" thread osKernelInitialize(); // Stop kernel mx_init(); // Setup clock and all peripherals configured in CubeMX // Initialise random number generator // Initialise ethernet pins osThreadCreate(osThread(blinker), NULL); // Create the blinker thread osThreadCreate(osThread(server), NULL); // Create the server thread osKernelStart(); // Start kernel again and exit main thread return 0; }