tronnet/pico-bmc
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add serial handler,

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move network init to network.h
This commit is contained in:
Arthur Lu 2024-05-10 15:01:22 -07:00
parent b36fe37ae3
commit 44706c75a1
6 changed files with 90 additions and 52 deletions
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1
CMakeLists.txt
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@ -13,6 +13,7 @@ target_include_directories(${PROGRAM_NAME} PRIVATE
target_link_libraries(${PROGRAM_NAME}
pico_cyw43_arch_lwip_threadsafe_background
pico_stdlib
pico_multicore
hardware_adc
)
pico_enable_stdio_usb(${PROGRAM_NAME} TRUE)

47
main.c
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@ -6,18 +6,11 @@
#include "secret.h"
#include "pico_lib.h"
#include "network.h"
#include "bmc_handler.h"
#include "http_serv.h"
#include "serial_handler.h"
void set_host_name(const char * hostname) {
cyw43_arch_lwip_begin();
struct netif * n = &cyw43_state.netif[CYW43_ITF_STA];
netif_set_hostname(n, hostname);
netif_set_up(n);
cyw43_arch_lwip_end();
}
int main() {
stdio_init_all();
@ -25,34 +18,42 @@ int main() {
DEBUG_printf("[INIT] [ERR] Failed to initialise cyw43\n");
return 1;
}
serial_handler_init();
cyw43_arch_enable_sta_mode();
set_host_name(BMC_HOSTNAME);
DEBUG_printf("[INIT] [OK ] Set hostname to %s\n", BMC_HOSTNAME);
if (cyw43_arch_wifi_connect_timeout_ms(WIFI_SSID, WIFI_PASS, CYW43_AUTH_WPA2_AES_PSK, 30000)){
DEBUG_printf("[INIT] [ERR] Wi-Fi failed to connect\n");
return -1;
}
DEBUG_printf("[INIT] [OK ] Wi-Fi connected successfully\n");
network_init(BMC_HOSTNAME, WIFI_SSID, WIFI_PASS);
http_serv_init();
// init bmc handler
bmc_handler_init();
serial_handler_init();
// set LED to on to indicate it has connected and initialized
cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
char command [BUF_SIZE];
while (!http_serv_state->complete) {
sleep_ms(1000);
printf("> ");
serial_get_line(command, BUF_SIZE);
if (strcmp(command, "help") == 0) {
printf("PICO BMC Shell\n\nhelp\tshow this help message\ninfo\tshow network name, hostname, ip address, and http server port\nclear\tclears the screen\n");
}
else if (strcmp(command, "info") == 0) {
printf("Network: %s\nHostname: %s\nAddress: %s\nHTTP Port: %i\n", WIFI_SSID, BMC_HOSTNAME, ip_ntoa(netif_ip4_addr(&cyw43_state.netif[CYW43_ITF_STA])), HTTP_PORT);
}
else if (strcmp(command, "clear") == 0) {
printf("\033[2J\033[H");
}
else if (strcmp(command, "") == 0) {
continue;
}
else {
printf("Unknown command: %s\n", command);
}
}
serial_handler_deinit();
bmc_handler_deinit();
http_serv_deinit();
serial_handler_deinit();
network_deinit();
cyw43_arch_deinit();
return 0;
}

28
network.h Normal file
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@ -0,0 +1,28 @@
#ifndef NETWORK_H
#define NETWORK_H
void set_host_name(const char * hostname) {
cyw43_arch_lwip_begin();
struct netif * n = &cyw43_state.netif[CYW43_ITF_STA];
netif_set_hostname(n, hostname);
netif_set_up(n);
cyw43_arch_lwip_end();
}
int network_init (char * hostname, char * wifi_ssid, char * wifi_pass) {
set_host_name(hostname);
DEBUG_printf("[INIT] [OK ] Set hostname to %s\n", BMC_HOSTNAME);
if (cyw43_arch_wifi_connect_timeout_ms(WIFI_SSID, WIFI_PASS, CYW43_AUTH_WPA2_AES_PSK, 30000)){
DEBUG_printf("[INIT] [ERR] Wi-Fi failed to connect\n");
return -1;
}
else {
DEBUG_printf("[INIT] [OK ] Wi-Fi connected successfully\n");
return 0;
}
}
int network_deinit () {}
#endif

2
pico_lib.h
View File

@ -3,6 +3,8 @@
#include "pico/cyw43_arch.h"
#include "pico/stdlib.h"
#include "pico/multicore.h"
#include "pico/mutex.h"
#include "hardware/adc.h"
#endif

58
serial_handler.h
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@ -1,13 +1,18 @@
#ifndef SERIAL_HANDLER_H
#define SERIAL_HANDLER_H
#define INPUT_BUFFER_SIZE 1024
#define BUF_SIZE 1024
char * input_buffer;
char * input_buffer_0;
char * input_buffer_1;
char * input_buffers [2] = {NULL, NULL};
bool active_write_input_buffer;
int write_offset;
semaphore_t sem_line;
bool inc_write_offset () {
if (write_offset < INPUT_BUFFER_SIZE - 1) {
int append_char (char c) {
if (write_offset < BUF_SIZE - 1) {
input_buffers[active_write_input_buffer][write_offset] = c;
write_offset++;
return true;
}
@ -17,9 +22,10 @@ bool inc_write_offset () {
}
}
bool dec_write_offset () {
int delete_char () {
if (write_offset > 0) {
write_offset--;
input_buffers[active_write_input_buffer][write_offset] = 0;
return true;
}
else {
@ -28,20 +34,13 @@ bool dec_write_offset () {
}
}
void rst_write_offset () {
void reset_input () {
write_offset = 0;
}
void handle_return () {
if (strcmp(input_buffer, "") == 0) {
return;
}
else if (strcmp(input_buffer, "info") == 0) {
printf("Network: %s\nHostname: %s\nAddress: %s\nHTTP Port: %i\n", WIFI_SSID, BMC_HOSTNAME, ip_ntoa(netif_ip4_addr(&cyw43_state.netif[CYW43_ITF_STA])), HTTP_PORT);
}
else {
printf("Unknown command: %s\n", input_buffer);
}
void serial_get_line (char * buf, int len) {
sem_acquire_blocking(&sem_line);
memcpy(buf, input_buffers[!active_write_input_buffer], BUF_SIZE > len ? BUF_SIZE : len);
}
// interrupt code adapted from: https://github.com/raspberrypi/pico-examples/blob/eca13acf57916a0bd5961028314006983894fc84/pico_w/wifi/iperf/picow_iperf.c
@ -53,21 +52,20 @@ void key_pressed_worker_func(async_context_t * context, async_when_pending_worke
int key;
while ((key = getchar_timeout_us(0)) > 0) {
if (key == 0x08 || key == 0x7F) { // backspace & delete
if (dec_write_offset()) {
if (delete_char()) {
printf("\b \b");
input_buffer[write_offset] = 0;
}
}
else if (key == '\r' || key == '\n') { // return
printf("\n");
input_buffer[write_offset] = 0;
handle_return();
rst_write_offset();
append_char(0); // ensure there is a null terminator
active_write_input_buffer = !active_write_input_buffer; // flip the active buffer
reset_input(); // reset write pointer to 0
sem_release(&sem_line); // release sem to allow serial_get_line to resume
}
else if (32 <= key && key <= 126) { // printable characters
printf("%c", key);
input_buffer[write_offset] = key;
inc_write_offset();
append_char(key);
}
else if (key == 27) { // escape & escape codes
while (getchar_timeout_us(0) > 0) {}
@ -90,14 +88,22 @@ void key_pressed_func(void * param) {
// init serial handler
void serial_handler_init () {
input_buffer = malloc(INPUT_BUFFER_SIZE * sizeof(char));
input_buffer_0 = malloc(BUF_SIZE * sizeof(char));
input_buffer_1 = malloc(BUF_SIZE * sizeof(char));
input_buffers[0] = input_buffer_0;
input_buffers[1] = input_buffer_1;
sem_init(&sem_line, 0, 1);
async_context_add_when_pending_worker(cyw43_arch_async_context(), &key_pressed_worker);
stdio_set_chars_available_callback(key_pressed_func, cyw43_arch_async_context());
}
void serial_handler_deinit () {
free(input_buffer);
input_buffer = NULL;
free(input_buffer_0);
free(input_buffer_1);
input_buffer_0 = NULL;
input_buffer_1 = NULL;
input_buffers[0] = NULL;
input_buffers[1] = NULL;
}
#endif

6
template.secret.h
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@ -1,8 +1,8 @@
#ifndef SECRET_H
#define SECRET_H
const char BMC_HOSTNAME[] = "pico_bmc";
const char WIFI_SSID[] = "ssid";
const char WIFI_PASS[] = "pass";
const char BMC_HOSTNAME [] = "pico_bmc";
const char WIFI_SSID [] = "ssid";
const char WIFI_PASS [] = "pass";
#endif