FreeCalypso > hg > freecalypso-hwlab
view fteeprom/fteeprom-prog.c @ 46:e5d89313bc00
ftee-mkblank written to replace fteeprom-prog -e
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 22 Apr 2019 19:44:57 +0000 |
parents | c4b9026c8875 |
children | 2c092eb1621b |
line wrap: on
line source
#include <sys/types.h> #include <ctype.h> #include <string.h> #include <strings.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <ftdi.h> char *device_selector; unsigned eeprom_size = 64; u_short eeprom[256]; int erase; process_cmdline(argc, argv) char **argv; { int c; extern int optind; while ((c = getopt(argc, argv, "bBe")) != EOF) { switch (c) { case 'b': eeprom_size = 128; continue; case 'B': eeprom_size = 256; continue; case 'e': erase = 1; continue; default: /* error msg already printed */ exit(1); } } if (argc != optind + 1) { fprintf(stderr, "usage: %s [options] device-selector\n", argv[0]); exit(1); } device_selector = argv[optind]; } read_eeprom_from_stdin() { unsigned n, off; int rc; for (n = 0; n < eeprom_size; n += 8) { rc = scanf("%x: %hx %hx %hx %hx %hx %hx %hx %hx", &off, eeprom + n, eeprom + n + 1, eeprom + n + 2, eeprom + n + 3, eeprom + n + 4, eeprom + n + 5, eeprom + n + 6, eeprom + n + 7); if (rc != 9 || off != n * 2) { fprintf(stderr, "ee2232-prog error: invalid input on stdin\n"); exit(1); } } } main(argc, argv) char **argv; { struct ftdi_context ftdi; unsigned n; process_cmdline(argc, argv); if (erase) memset(eeprom, 0xFF, eeprom_size * 2); else read_eeprom_from_stdin(); ftdi_init(&ftdi); if (ftdi_usb_open_string(&ftdi, device_selector) < 0) { fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str); exit(1); } for (n = 0; n < eeprom_size; n++) { if (ftdi_write_eeprom_location(&ftdi, n, eeprom[n]) < 0) { fprintf(stderr, "EEPROM write error: %s\n", ftdi.error_str); exit(1); } } ftdi_usb_close(&ftdi); exit(0); }