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https://github.com/cesanta/mongoose.git
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85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
// Copyright (c) 2022 Cesanta Software Limited
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// All rights reserved
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#include "mcu.h"
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#include "mongoose.h"
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// HTTP server event handler function
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static void fn(struct mg_connection *c, int ev, void *ev_data, void *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_http_match_uri(hm, "/api/debug")) {
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int level = mg_json_get_long(hm->body, "$.level", MG_LL_DEBUG);
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mg_log_set(level);
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mg_http_reply(c, 200, "", "Debug level set to %d\n", level);
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} else {
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mg_http_reply(c, 200, "", "%s\n", "hi");
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}
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}
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(void) fn_data;
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}
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static void ethernet_init(void) {
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// Initialise Ethernet. Enable MAC GPIO pins, see
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// https://www.farnell.com/datasheets/2014265.pdf section 6.10
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uint16_t pins[] = {PIN('A', 1), PIN('A', 2), PIN('A', 7),
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PIN('B', 13), PIN('C', 1), PIN('C', 4),
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PIN('C', 5), PIN('G', 11), PIN('G', 13)};
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for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
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gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
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GPIO_PULL_NONE, 11);
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}
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NVIC_EnableIRQ(61); // Setup Ethernet IRQ handler
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RCC->APB2ENR |= BIT(14); // Enable SYSCFG
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SYSCFG->PMC |= BIT(23); // Use RMII. Goes first!
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RCC->AHB1ENR |= BIT(25) | BIT(26) | BIT(27); // Enable Ethernet clocks
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RCC->AHB1RSTR |= BIT(25); // ETHMAC force reset
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RCC->AHB1RSTR &= ~BIT(25); // ETHMAC release reset
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}
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static void server(void *args) {
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struct mg_mgr mgr; // Initialise Mongoose event manager
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mg_mgr_init(&mgr); // and attach it to the MIP interface
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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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// Specify MAC address, and IP/mask/GW in network byte order for static
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// IP configuration. If IP/mask/GW are unset, DHCP is going to be used
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MG_INFO(("Initializing Ethernet driver"));
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ethernet_init();
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struct mg_tcpip_driver_stm32_data driver_data = {.mdc_cr = 4};
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struct mg_tcpip_if mif = {
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.mac = {2, 0, 1, 2, 3, 5},
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.driver = &mg_tcpip_driver_stm32,
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.driver_data = &driver_data,
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};
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mg_tcpip_init(&mgr, &mif);
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MG_INFO(("Starting Mongoose v%s", MG_VERSION)); // Tell the world
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mg_http_listen(&mgr, "http://0.0.0.0", fn, &mgr); // Web listener
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while (args == NULL) mg_mgr_poll(&mgr, 1000); // Infinite event loop
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mg_mgr_free(&mgr); // Unreachable
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}
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static void blinker(void *args) {
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uint16_t led = PIN('B', 7);
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gpio_init(led, GPIO_MODE_OUTPUT, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_MEDIUM,
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GPIO_PULL_NONE, 0);
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for (;;) {
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gpio_toggle(led);
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vTaskDelay(pdMS_TO_TICKS(750));
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MG_INFO(("blink %s, RAM: %u", (char *) args, xPortGetFreeHeapSize()));
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}
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}
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int main(void) {
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clock_init(); // Set clock to max of 180 MHz
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systick_init(SYS_FREQUENCY / 1000); // Tick every 1 ms
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uart_init(UART_DEBUG, 115200); // Initialise UART
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xTaskCreate(blinker, "blinker", 128, ":)", configMAX_PRIORITIES - 1, NULL);
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xTaskCreate(server, "server", 2048, 0, configMAX_PRIORITIES - 1, NULL);
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vTaskStartScheduler(); // This blocks
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return 0;
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}
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