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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ftdi.h>
#define DEV_FE310 1
#define DEV_ESP32 2
void usage(char *p) {
fprintf(stderr, "Usage: %s fe310|esp32\n", p);
exit(1);
}
int main(int argc, char *argv[]) {
int dev;
int ret;
struct ftdi_context *ftdi;
if (argc != 2) {
usage(argv[0]);
}
if (strcmp(argv[1], "fe310") == 0) {
dev = DEV_FE310;
} else if (strcmp(argv[1], "esp32") == 0) {
dev = DEV_ESP32;
} else {
usage(argv[0]);
}
if ((ftdi = ftdi_new()) == 0) {
fprintf(stderr, "ftdi_new failed\n");
return EXIT_FAILURE;
}
if ((ret = ftdi_usb_open(ftdi, 0x0403, 0x6015)) < 0) {
fprintf(stderr, "unable to open ftdi device: %d (%s)\n", ret, ftdi_get_error_string(ftdi));
ftdi_free(ftdi);
return EXIT_FAILURE;
}
switch (dev) {
case DEV_FE310: {
printf("Switch to fe310\n");
ret = ftdi_set_bitmode(ftdi, 0x20, BITMODE_CBUS);
break;
}
case DEV_ESP32: {
printf("Switch to esp32\n");
ret = ftdi_set_bitmode(ftdi, 0x00, BITMODE_CBUS);
break;
}
}
if (ret < 0) goto ftdi_fin;
ret = ftdi_usb_close(ftdi);
ftdi_fin:
if (ret < 0) {
fprintf(stderr, "ERR: %d (%s)\n", ret, ftdi_get_error_string(ftdi));
}
ftdi_free(ftdi);
return ret < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
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