96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
|
// Copyright (c) 2022 Cesanta Software Limited
|
||
|
|
// All rights reserved
|
||
|
|
|
||
|
|
#include "hal.h"
|
||
|
|
#include "mongoose.h"
|
||
|
|
|
||
|
|
#define LED1 PIN('B', 0) // On-board LED pin (green)
|
||
|
|
#define LED2 PIN('B', 7) // On-board LED pin (blue)
|
||
|
|
#define LED3 PIN('B', 14) // On-board LED pin (red)
|
||
|
|
|
||
|
|
#define LED LED2 // Use blue LED for blinking
|
||
|
|
#define BLINK_PERIOD_MS 1000 // LED blinking period in millis
|
||
|
|
|
||
|
|
void mg_random(void *buf, size_t len) { // Use on-board RNG
|
||
|
|
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
|
||
|
|
uint32_t r = rng_read();
|
||
|
|
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 ethernet_init(void) {
|
||
|
|
// Initialise Ethernet. Enable MAC GPIO pins, see
|
||
|
|
// https://www.farnell.com/datasheets/2014265.pdf section 6.10
|
||
|
|
uint16_t pins[] = {PIN('A', 1), PIN('A', 2), PIN('A', 7),
|
||
|
|
PIN('B', 13), PIN('C', 1), PIN('C', 4),
|
||
|
|
PIN('C', 5), PIN('G', 11), PIN('G', 13)};
|
||
|
|
for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
|
||
|
|
gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
|
||
|
|
GPIO_PULL_NONE, 11); // 11 is the Ethernet function
|
||
|
|
}
|
||
|
|
NVIC_EnableIRQ(ETH_IRQn); // Setup Ethernet IRQ handler
|
||
|
|
SYSCFG->PMC |= SYSCFG_PMC_MII_RMII_SEL; // Use RMII. Goes first!
|
||
|
|
RCC->AHB1ENR |=
|
||
|
|
RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static void server(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
|
||
|
|
ethernet_init();
|
||
|
|
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(void *args) {
|
||
|
|
gpio_init(LED, GPIO_MODE_OUTPUT, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_MEDIUM,
|
||
|
|
GPIO_PULL_NONE, 0);
|
||
|
|
for (;;) {
|
||
|
|
gpio_toggle(LED);
|
||
|
|
vTaskDelay(pdMS_TO_TICKS(BLINK_PERIOD_MS));
|
||
|
|
}
|
||
|
|
(void) args;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(void) {
|
||
|
|
uart_init(UART_DEBUG, 115200); // Initialise UART
|
||
|
|
|
||
|
|
// Start tasks. NOTE: stack sizes are in 32-bit words
|
||
|
|
xTaskCreate(blinker, "blinker", 128, ":)", configMAX_PRIORITIES - 1, NULL);
|
||
|
|
xTaskCreate(server, "server", 2048, 0, configMAX_PRIORITIES - 1, NULL);
|
||
|
|
|
||
|
|
vTaskStartScheduler(); // This blocks
|
||
|
|
return 0;
|
||
|
|
}
|