libicsneo/examples/c2/lin_transmit/src/main.c

277 lines
8.7 KiB
C

#include <icsneo/icsneoc2.h>
#include <icsneo/icsneoc2messages.h>
#include <icsneo/icsneoc2settings.h>
#ifdef _WIN32
#include <windows.h>
#else
#include <unistd.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
void sleep_ms(uint32_t ms) {
#ifdef _WIN32
Sleep(ms);
#else
sleep(ms / 1000);
#endif
}
int print_error_code(const char* message, icsneoc2_error_t error) {
char error_str[64];
size_t error_str_len = sizeof(error_str);
icsneoc2_error_t res = icsneoc2_error_code_get(error, error_str, &error_str_len);
if(res != icsneoc2_error_success) {
printf("%s: Failed to get string for error code %d with error code %d\n", message, error, res);
return res;
}
printf("%s: \"%s\" (%u)\n", message, error_str, error);
return (int)error;
}
int read_int(const char* prompt, int min_val, int max_val) {
int value;
while(1) {
printf("%s", prompt);
if(scanf("%d", &value) != 1) {
/* Clear invalid input */
int c;
while((c = getchar()) != '\n' && c != EOF) {}
printf("Invalid input, try again.\n");
continue;
}
if(value < min_val || value > max_val) {
printf("Please enter a value between %d and %d.\n", min_val, max_val);
continue;
}
return value;
}
}
int read_hex(const char* prompt, int min_val, int max_val) {
int value;
while(1) {
printf("%s", prompt);
if(scanf("%x", &value) != 1) {
/* Clear invalid input */
int c;
while((c = getchar()) != '\n' && c != EOF) {}
printf("Invalid input, try again.\n");
continue;
}
if(value < min_val || value > max_val) {
printf("Please enter a value between 0x%X and 0x%X.\n", min_val, max_val);
continue;
}
return value;
}
}
int main() {
icsneoc2_error_t res;
/* ===== Device Selection ===== */
printf("Searching for devices...\n");
icsneoc2_device_info_t* found_devices = NULL;
res = icsneoc2_device_enumerate(0, &found_devices);
if(res != icsneoc2_error_success) {
return print_error_code("Failed to enumerate devices", res);
}
if(!found_devices) {
printf("No devices found.\n");
return 1;
}
/* Count and display devices */
int device_count = 0;
for(icsneoc2_device_info_t* cur = found_devices; cur; cur = icsneoc2_device_info_next(cur)) {
char desc[128] = {0};
size_t desc_len = sizeof(desc);
icsneoc2_device_info_description_get(cur, desc, &desc_len);
printf(" [%d] %s\n", device_count + 1, desc);
device_count++;
}
int device_choice = read_int("Select device: ", 1, device_count);
/* Find the selected device_info node */
icsneoc2_device_info_t* selected_info = found_devices;
for(int i = 1; i < device_choice; i++) {
selected_info = icsneoc2_device_info_next(selected_info);
}
/* Open the selected device */
icsneoc2_device_t* device = NULL;
res = icsneoc2_device_create(selected_info, &device);
if(res != icsneoc2_error_success) {
icsneoc2_enumeration_free(found_devices);
return print_error_code("Failed to create device from device info", res);
}
res = icsneoc2_device_open(device, icsneoc2_open_options_default);
icsneoc2_enumeration_free(found_devices);
if(res != icsneoc2_error_success) {
icsneoc2_device_free(device);
return print_error_code("Failed to open device", res);
}
char description[128] = {0};
size_t description_length = sizeof(description);
icsneoc2_device_description_get(device, description, &description_length);
printf("Opened device: %s\n\n", description);
/* ===== LIN Network Selection ===== */
/* Get all supported TX networks */
size_t tx_net_count = 0;
res = icsneoc2_device_supported_tx_networks_get(device, NULL, &tx_net_count);
if(res != icsneoc2_error_success || tx_net_count == 0) {
printf("No supported TX networks.\n");
icsneoc2_device_close(device);
return 1;
}
icsneoc2_netid_t* tx_networks = (icsneoc2_netid_t*)malloc(tx_net_count * sizeof(icsneoc2_netid_t));
if(!tx_networks) {
printf("Out of memory.\n");
icsneoc2_device_close(device);
icsneoc2_device_free(device);
return 1;
}
res = icsneoc2_device_supported_tx_networks_get(device, tx_networks, &tx_net_count);
if(res != icsneoc2_error_success) {
free(tx_networks);
icsneoc2_device_close(device);
icsneoc2_device_free(device);
return print_error_code("Failed to get TX networks", res);
}
/* Filter for LIN networks */
icsneoc2_netid_t lin_networks[64] = {0};
char lin_names[64][128] = {{0}};
size_t lin_count = 0;
for(size_t i = 0; i < tx_net_count && lin_count < 64; i++) {
icsneoc2_message_t* tmp = NULL;
res = icsneoc2_message_lin_create(&tmp, 0);
if(res != icsneoc2_error_success) continue;
res = icsneoc2_message_netid_set(tmp, tx_networks[i]);
if(res != icsneoc2_error_success) { icsneoc2_message_free(tmp); continue; }
icsneoc2_network_type_t ntype = 0;
res = icsneoc2_message_network_type_get(tmp, &ntype);
icsneoc2_message_free(tmp);
if(res != icsneoc2_error_success) continue;
if(ntype == icsneoc2_network_type_lin) {
lin_networks[lin_count] = tx_networks[i];
size_t name_len = 128;
icsneoc2_netid_name_get(tx_networks[i], lin_names[lin_count], &name_len);
lin_count++;
}
}
free(tx_networks);
if(lin_count == 0) {
printf("No LIN networks available on this device.\n");
icsneoc2_device_close(device);
icsneoc2_device_free(device);
return 1;
}
printf("Available LIN networks:\n");
for(size_t i = 0; i < lin_count; i++) {
printf(" [%zu] %s\n", i + 1, lin_names[i]);
}
int lin_choice = read_int("Select LIN network: ", 1, (int)lin_count);
icsneoc2_netid_t selected_netid = lin_networks[lin_choice - 1];
printf("Selected: %s\n\n", lin_names[lin_choice - 1]);
/* ===== Commander / Responder Selection ===== */
printf("Message type:\n");
printf(" [1] Commander frame\n");
printf(" [2] Responder frame (update responder + header only)\n");
int type_choice = read_int("Select message type: ", 1, 2);
bool is_commander = (type_choice == 1);
printf("Selected: %s\n\n", is_commander ? "Commander" : "Responder");
uint8_t id_choice = (uint8_t)read_hex("Select LIN ID (0x00-0x3F): ", 0, 0x3F);
printf("Selected: 0x%02X\n\n", id_choice);
/* ===== Configure LIN ===== */
printf("Configuring %s... ", lin_names[lin_choice - 1]);
res = icsneoc2_settings_commander_resistor_set(device, selected_netid, is_commander);
res += icsneoc2_settings_baudrate_set(device, selected_netid, 19200);
res += icsneoc2_settings_lin_mode_set(device, selected_netid, icsneoc2_lin_mode_normal);
res += icsneoc2_settings_apply(device);
if(res != icsneoc2_error_success) {
icsneoc2_device_close(device);
icsneoc2_device_free(device);
return print_error_code("Failed to configure LIN", res);
}
printf("OK\n\n");
/* ===== Transmit Loop ===== */
printf("Transmitting on %s every second for 10 seconds...\n", lin_names[lin_choice - 1]);
uint8_t counter = 0;
for(int i = 0; i < 10; i++) {
icsneoc2_message_t* msg = NULL;
res = icsneoc2_message_lin_create(&msg, id_choice);
if(res != icsneoc2_error_success) {
print_error_code("\tFailed to create LIN message", res);
break;
}
uint8_t data[] = {counter, counter + 1, counter + 2, counter + 3, 0xAA, 0xBB, 0xCC, 0xDD};
bool enhanced = true;
if(is_commander) {
/* Commander: send header-only frame to poll the bus */
icsneoc2_lin_msg_type_t msg_type = icsneoc2_lin_msg_type_header_only;
res = icsneoc2_message_lin_props_set(msg, NULL, NULL, &msg_type, &enhanced);
res += icsneoc2_message_netid_set(msg, selected_netid);
if(res != icsneoc2_error_success) {
icsneoc2_message_free(msg);
print_error_code("\tFailed to set commander properties", res);
break;
}
res = icsneoc2_device_message_transmit(device, msg);
icsneoc2_message_free(msg);
if(res != icsneoc2_error_success) {
print_error_code("\tFailed to transmit header", res);
break;
}
} else {
/* Responder: update the responder table with new data */
icsneoc2_lin_msg_type_t msg_type = icsneoc2_lin_msg_type_update_responder;
res = icsneoc2_message_lin_props_set(msg, NULL, NULL, &msg_type, &enhanced);
res += icsneoc2_message_data_set(msg, data, sizeof(data));
res += icsneoc2_message_lin_calc_checksum(msg);
res += icsneoc2_message_netid_set(msg, selected_netid);
if(res != icsneoc2_error_success) {
icsneoc2_message_free(msg);
print_error_code("\tFailed to update responder", res);
break;
}
res = icsneoc2_device_message_transmit(device, msg);
icsneoc2_message_free(msg);
if(res != icsneoc2_error_success) {
print_error_code("\tFailed to transmit responder update", res);
break;
}
}
printf("[%2d/10] Transmitted %s msg ID=0x%02X, counter=%u\n",
i + 1, is_commander ? "commander" : "responder", id_choice, counter);
counter += 4;
sleep_ms(1000);
}
/* Cleanup */
printf("\nClosing device... ");
res = icsneoc2_device_close(device);
printf("%s\n", res == icsneoc2_error_success ? "OK" : "FAIL");
icsneoc2_device_free(device);
return 0;
}