#include <stdio.h>#include <stdlib.h>#include <ftdi.h>#include <stdint.h>#include <string.h>struct ftdi_context fc;#define ALTERA_VID 0x09FB#define BLASTER_PID 0x6001#define USBJTAG_VID 0x16C0#define USBJTAG_PID 0x06ADvoid dev_deinit(void){   ftdi_deinit(&fc);}void dev_close(void){  ftdi_usb_close(&fc);}void dev_reset(void){  ftdi_usb_reset(&fc);}int dev_error (char *s){  fprintf (stderr, "%s: %s\n", s, ftdi_get_error_string(&fc));  return -1;}int eeprom_test(void){  uint8_t eeprom[128];  if(ftdi_read_eeprom(&fc, eeprom) < 0)  {    (void)dev_error("ftdi_read_eeprom failed");    return;  };  printf("=== EEPROM test ===\n");  printf("  VID 0x%04X\n", eeprom[2] + (eeprom[3]<<8));  printf("  PID 0x%04X\n", eeprom[4] + (eeprom[5]<<8));  printf("  HW Version 0x%04X\n", eeprom[6] + (eeprom[7]<<8));  printf("  USB Flags 0x%02X\n", eeprom[8]);  printf("  Power 0x%02X\n", eeprom[9]);  printf("  FTDI Flags 0x%02X\n", eeprom[10]);  return 0;}int jtag_test(void){  int n;  unsigned char buf[64];  printf("=== JTAG test ===\n");  memset(buf, 0, 64); // ensure bit bang mode in "CPLD"#if 1  n = ftdi_write_data(&fc, buf, 64);  printf("n = %d\n", n);  if(n < 0) return dev_error("ftdi_write_data(64 zeros) failed");  buf[0] = 0x33;  n = ftdi_write_data(&fc, buf, 1);  printf("n = %d\n", n);  if(n < 0) return dev_error("ftdi_write_data(0x33) failed");#endif#if 0  n = ftdi_read_data(&fc, buf, 4);  printf("n = %d, buf=%02X %02X %02X %02X\n", n, buf[0], buf[1], buf[2], buf[3]);  if(n < 0) (void)dev_error("ftdi_read_data failed");#endif}int asmi_test(void){  printf("=== ASMI test ===\n  not implemented yet\n");  return 0;}int main(int argc, char *argv[]){  ftdi_init(&fc);#if 0#warning using nonstandard ep numbers  fc.in_ep = 0x01;  fc.out_ep = 0x81;#endif  atexit(dev_deinit);  printf("=== Search ixo.de adapter ===\n");  if(ftdi_usb_open(&fc, USBJTAG_VID, USBJTAG_PID) < 0)  {    (void)dev_error("ftdi_usb_open failed");      printf("=== Search Altera adapter ===\n");    if(ftdi_usb_open(&fc, ALTERA_VID, BLASTER_PID) < 0)    {      return dev_error("ftdi_usb_open failed");    };  };  atexit(dev_close);  if(eeprom_test() < 0) return -1;  if(ftdi_disable_bitbang(&fc) < 0)  {    return dev_error("unable to disable bitbang mode");   };  if (ftdi_set_latency_timer(&fc, 2) < 0)  {    return dev_error("unable to set latency timer");  };  {    unsigned  char latency_timer;    if (ftdi_get_latency_timer(&fc, &latency_timer) < 0)    {      return dev_error("unable to get latency timer");    }    printf("current latency timer: %i\n", latency_timer);  };  /* TODO: libftdi's ftdi_set_baudrate chokes on high rates, use lowlevel   * usb function instead! And additionally allow user to throttle. */  if(ftdi_set_baudrate(&fc, 3000000/4)<0)  {    return dev_error("unable to set baud rate to max");  };  if(jtag_test() < 0) return -1;  if(asmi_test() < 0) return -1;  return 0;}