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// SPDX-License-Identifier: BSD-3-Clause
//
// This is a test program, used to test libserialport.
// You don't need it.
#include <libserialport.h>
#include <cstdio>
#include <cstdlib>
#include <hexdump.h>
#include <iostream>
#include <unistd.h>
#define BUFSIZE 256
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
void die_on_fail(const char* s, int result) {
if (result != SP_OK) {
fprintf(stderr, "%s failed\n", s);
exit(1);
}
}
static const unsigned char PI[] = {
0x5e, 0x50, 0x30, 0x30, 0x35, 0x50, 0x49,
0x71, 0x8b, 0x0d
};
static const unsigned char GS[] = {
0x5e, 0x50, 0x30, 0x30, 0x35, 0x47, 0x53,
0x58, 0x14, 0x0d
};
int main(int argc, char** argv) {
struct sp_port* port;
struct sp_port_config *config;
char buf[BUFSIZE] = {0};
die_on_fail("sp_get_port_by_name", sp_get_port_by_name("/dev/ttyUSB0", &port));
die_on_fail("sp_open", sp_open(port, SP_MODE_READ_WRITE));
printf("configuring...\n");
die_on_fail("sp_new_config", sp_new_config(&config));
die_on_fail("sp_get_config", sp_get_config(port, config));
die_on_fail("sp_set_config_baudrate", sp_set_config_baudrate(config, 2400));
die_on_fail("sp_set_config_stopbits", sp_set_config_stopbits(config, 1));
die_on_fail("sp_set_config_bits", sp_set_config_bits(config, 8));
die_on_fail("sp_set_config_parity", sp_set_config_parity(config, SP_PARITY_NONE));
die_on_fail("sp_set_config_flowcontrol", sp_set_config_flowcontrol(config, SP_FLOWCONTROL_NONE));
die_on_fail("sp_set_config", sp_set_config(port, config));
printf("configured.\n");
sp_flush(port, SP_BUF_BOTH);
printf("writing %lu bytes...\n", ARRAY_SIZE(PI));
int written = sp_blocking_write(port, PI, ARRAY_SIZE(PI), 0);
printf("%d bytes written\n", written);
usleep(200000);
printf("reading...\n");
int read = sp_blocking_read_next(port, buf, ARRAY_SIZE(buf), 0);
printf("got %d bytes:\n", read);
std::cout << hexdump(buf, read) << std::endl;
printf("cleaning up...\n");
sp_free_config(config);
sp_free_port(port);
return 0;
}
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