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https://github.com/cesanta/mongoose.git
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90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
// Copyright (c) 2026 Cesanta Software Limited
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// All rights reserved
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#include "hal.h"
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#include "mongoose.h"
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#ifndef UART_DEBUG
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#define UART_DEBUG USART3
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#define UART_DEBUG_TX_PIN PIN('D', 8)
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#define UART_DEBUG_RX_PIN PIN('D', 9)
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#else
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#define UART_DEBUG_TX_PIN PIN('A', 9)
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#define UART_DEBUG_RX_PIN PIN('A', 10)
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#endif
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#define LED_1 PIN('B', 0) // On-board LED pin (green)
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#define LED_2 PIN('F', 4) // On-board LED pin (yellow)
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#define LED_3 PIN('G', 4) // On-board LED pin (red)
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#define LFS_SIZE (64 * 1024)
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static void blink_task(void) {
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static uint64_t blink_timer = 0;
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if (hal_timer_expired(&blink_timer, 500, hal_get_tick())) {
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hal_gpio_toggle(LED_1);
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}
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}
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uint64_t mg_millis(void) {
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return hal_get_tick();
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}
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bool mg_random(void *buf, size_t len) {
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for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
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uint32_t r = hal_rng_read();
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memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
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}
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return true;
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}
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static void http_ev_handler(struct mg_connection *c, int ev, void *ev_data) {
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if (ev == MG_EV_HTTP_MSG) { // New HTTP request received
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struct mg_http_message *hm = (struct mg_http_message *) ev_data;
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if (mg_match(hm->uri, mg_str("/api/tick"), NULL)) {
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mg_http_reply(c, 200, "", "{%m:%llu}\n", MG_ESC("tick"), hal_get_tick());
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} else {
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mg_http_reply(c, 200, "", "Hi from Mongoose, tick %llu\n", hal_get_tick());
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}
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}
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}
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static void log_fn(char ch, void *param) {
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hal_uart_write_buf(param, &ch, 1);
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}
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int main(void) {
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hal_uart_init(UART_DEBUG, UART_DEBUG_TX_PIN, UART_DEBUG_RX_PIN, 115200);
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mg_log_set_fn(log_fn, UART_DEBUG);
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hal_rng_init();
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hal_gpio_output(LED_1);
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hal_gpio_output(LED_2);
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hal_gpio_output(LED_3);
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hal_ethernet_init();
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// Start a minimal web server
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struct mg_mgr mgr;
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mg_mgr_init(&mgr);
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mg_http_listen(&mgr, "http://0.0.0.0", http_ev_handler, NULL);
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// Initialise LFS, which enables stdio fopen/fwrite/...
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if (mg_lfs_init(LFS_SIZE)) {
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char buf[20] = "";
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FILE *fp = fopen("a.txt", "r");
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if (fp != NULL) fread(buf, 1, sizeof(buf) - 1, fp), fclose(fp);
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MG_INFO(("BOOT COUNT: %s", buf));
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fp = fopen("a.txt", "w+");
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if (fp != NULL) fprintf(fp, "%d", atoi(buf) + 1), fclose(fp);
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} else {
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MG_ERROR(("LFS init failed"));
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}
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for (;;) {
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mg_mgr_poll(&mgr, 0);
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blink_task();
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}
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return 0;
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}
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