mirror of
https://github.com/cesanta/mongoose.git
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113 lines
3.9 KiB
C
113 lines
3.9 KiB
C
// Copyright (c) 2023 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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#define BLINK_PERIOD_MS 1000 // LED blinking period in millis
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static struct spi spi_pins = {
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.miso = PIN('B', 4),
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.mosi = PIN('A', 0),
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.clk = PIN('A', 1),
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.cs = PIN('A', 4),
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};
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uint32_t SystemCoreClock = CPU_FREQUENCY;
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void SystemInit(void) { // Called automatically by startup code
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rng_init();
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SysTick_Config(CPU_FREQUENCY / 1000); // Sys tick every 1ms
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}
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static volatile uint64_t s_ticks; // Milliseconds since boot
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void SysTick_Handler(void) { // SyStick IRQ handler, triggered every 1ms
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s_ticks++;
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}
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bool mg_random(void *buf, size_t len) { // Use on-board RNG
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for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
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uint32_t r = 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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uint64_t mg_millis(void) { // Let Mongoose use our uptime function
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return s_ticks; // Return number of milliseconds since boot
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}
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static void timer_fn(void *arg) {
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gpio_toggle(LED); // Blink LED
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struct mg_tcpip_if *ifp = arg; // And show
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MG_INFO(("Ethernet: %d, IP: %M, rx:%u, tx:%u, dr:%u, er:%u", ifp->state,
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mg_print_ip4, &ifp->ip, ifp->nrecv, ifp->nsent, ifp->ndrop,
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ifp->nerr));
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}
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static void fn(struct mg_connection *c, int ev, void *ev_data) {
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struct mg_tcpip_if *ifp = (struct mg_tcpip_if *) c->fn_data;
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if (ev == MG_EV_HTTP_MSG) {
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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/hello"), NULL)) { // Request to /api/hello
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mg_http_reply(c, 200, "", "{%m:%u,%m:%u,%m:%u,%m:%u,%m:%u}\n",
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MG_ESC("eth"), ifp->state, MG_ESC("frames_received"),
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ifp->nrecv, MG_ESC("frames_sent"), ifp->nsent,
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MG_ESC("frames_dropped"), ifp->ndrop,
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MG_ESC("interface_errors"), ifp->nerr);
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} else if (mg_match(hm->uri, mg_str("/"), NULL)) { // Index page
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mg_http_reply(
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c, 200, "", "%s",
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"<html><head><link rel='icon' href='data:;base64,='></head><body>"
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"<h1>Welcome to Mongoose</h1>"
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"See <a href=/api/hello>/api/hello</a> for REST example"
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"</body></html>");
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} else { // All other URIs
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mg_http_reply(c, 404, "", "Not Found\n");
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}
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}
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}
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int main(void) {
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gpio_output(LED); // Setup green LED
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uart_init(UART_DEBUG, 115200); // Initialise debug printf
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// ethernet_init(); // Initialise ethernet pins
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MG_INFO(("Starting, CPU freq %g MHz", (double) SystemCoreClock / 1000000));
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struct mg_mgr mgr; // Initialise
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mg_mgr_init(&mgr); // Mongoose event manager
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mg_log_set(MG_LL_DEBUG); // Set log level
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// Initialise Mongoose network stack
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spi_init(&spi_pins);
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struct mg_tcpip_spi spi = {
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.begin = (void (*)(void *)) spi_begin,
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.end = (void (*)(void *)) spi_end,
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.txn = (uint8_t(*)(void *, uint8_t)) spi_txn,
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.spi = &spi_pins,
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};
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struct mg_tcpip_if mif = {.mac = GENERATE_LOCALLY_ADMINISTERED_MAC(),
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// Uncomment below for static configuration:
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// .ip = mg_htonl(MG_U32(192, 168, 0, 223)),
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// .mask = mg_htonl(MG_U32(255, 255, 255, 0)),
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// .gw = mg_htonl(MG_U32(192, 168, 0, 1)),
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.driver = &mg_tcpip_driver_w5500,
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.driver_data = &spi};
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mg_tcpip_init(&mgr, &mif);
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MG_INFO(("MAC: %M. Waiting for IP...", mg_print_mac, mif.mac));
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while (mif.state != MG_TCPIP_STATE_READY) {
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mg_mgr_poll(&mgr, 0);
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}
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MG_INFO(("Initialising application..."));
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mg_timer_add(&mgr, BLINK_PERIOD_MS, MG_TIMER_REPEAT, timer_fn, &mif);
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mg_http_listen(&mgr, "http://0.0.0.0:80", fn, &mif);
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MG_INFO(("Starting event loop"));
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for (;;) {
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mg_mgr_poll(&mgr, 0);
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}
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return 0;
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}
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