int main(int argc, const char * argv[]) { printf("dfu-util, utility to flash dfu firmware into USB devices on OS X.\n"); printf("Based on original dfu-tool & dfu-programmer for Linux.\n\n"); if (argc != 4) { printf("Usage: dfu-util <vendorId hex> <productId hex> <firmware.dfu>\n"); return -1; } // Parse device vendor & product unsigned short idVendor = strtoul(argv[1], NULL, 16); unsigned short idProduct = strtoul(argv[2], NULL, 16); printf("[i] Initiating DFU for USB device [%04x:%04x].\n", idVendor, idProduct); firmware.name = argv[3]; dfu_load_file(&firmware, NEEDS_SUFFIX); show_suffix_and_prefix(&firmware); IOUSBDeviceInterface300** device = NULL; if ((device = prepareDFU(idVendor, idProduct)) != NULL) uploadFirmware(device); else fprintf(stderr, "[!] Failed to enter DFU mode.\n"); free(firmware.firmware); return 0; }
int main(int argc, char **argv) { int expected_size = 0; unsigned int transfer_size = 0; enum mode mode = MODE_NONE; struct dfu_status status; libusb_context *ctx; struct dfu_file file; char *end; int final_reset = 0; int detach_unsupported = 0; int ret; int dfuse_device = 0; int fd; const char *dfuse_options = NULL; int detach_delay = 5; uint16_t runtime_vendor; uint16_t runtime_product; memset(&file, 0, sizeof(file)); /* make sure all prints are flushed */ setvbuf(stdout, NULL, _IONBF, 0); while (1) { int c, option_index = 0; c = getopt_long(argc, argv, "hVvlenE:d:p:c:i:a:S:t:U:D:Rs:Z:", opts, &option_index); if (c == -1) break; switch (c) { case 'h': help(); break; case 'V': mode = MODE_VERSION; break; case 'v': verbose++; break; case 'l': mode = MODE_LIST; break; case 'e': mode = MODE_DETACH; match_iface_alt_index = 0; match_iface_index = 0; break; case 'E': detach_delay = atoi(optarg); break; case 'n': detach_unsupported = 1; break; case 'd': parse_vendprod(optarg); break; case 'p': /* Parse device path */ ret = resolve_device_path(optarg); if (ret < 0) errx(EX_SOFTWARE, "Unable to parse '%s'", optarg); if (!ret) errx(EX_SOFTWARE, "Cannot find '%s'", optarg); break; case 'c': /* Configuration */ match_config_index = atoi(optarg); break; case 'i': /* Interface */ match_iface_index = atoi(optarg); break; case 'a': /* Interface Alternate Setting */ match_iface_alt_index = strtoul(optarg, &end, 0); if (*end) { match_iface_alt_name = optarg; match_iface_alt_index = -1; } break; case 'S': parse_serial(optarg); break; case 't': transfer_size = atoi(optarg); break; case 'U': mode = MODE_UPLOAD; file.name = optarg; break; case 'Z': expected_size = atoi(optarg); break; case 'D': mode = MODE_DOWNLOAD; file.name = optarg; break; case 'R': final_reset = 1; break; case 's': dfuse_options = optarg; break; default: help(); break; } } print_version(); if (mode == MODE_VERSION) { exit(0); } if (mode == MODE_NONE) { fprintf(stderr, "You need to specify one of -D or -U\n"); help(); } if (match_config_index == 0) { /* Handle "-c 0" (unconfigured device) as don't care */ match_config_index = -1; } if (mode == MODE_DOWNLOAD) { dfu_load_file(&file, MAYBE_SUFFIX, MAYBE_PREFIX); /* If the user didn't specify product and/or vendor IDs to match, * use any IDs from the file suffix for device matching */ if (match_vendor < 0 && file.idVendor != 0xffff) { match_vendor = file.idVendor; printf("Match vendor ID from file: %04x\n", match_vendor); } if (match_product < 0 && file.idProduct != 0xffff) { match_product = file.idProduct; printf("Match product ID from file: %04x\n", match_product); } } ret = libusb_init(&ctx); if (ret) errx(EX_IOERR, "unable to initialize libusb: %i", ret); if (verbose > 2) { libusb_set_debug(ctx, 255); } probe_devices(ctx); if (mode == MODE_LIST) { list_dfu_interfaces(); exit(0); } if (dfu_root == NULL) { errx(EX_IOERR, "No DFU capable USB device available"); } else if (dfu_root->next != NULL) { /* We cannot safely support more than one DFU capable device * with same vendor/product ID, since during DFU we need to do * a USB bus reset, after which the target device will get a * new address */ errx(EX_IOERR, "More than one DFU capable USB device found! " "Try `--list' and specify the serial number " "or disconnect all but one device\n"); } /* We have exactly one device. Its libusb_device is now in dfu_root->dev */ printf("Opening DFU capable USB device...\n"); ret = libusb_open(dfu_root->dev, &dfu_root->dev_handle); if (ret || !dfu_root->dev_handle) errx(EX_IOERR, "Cannot open device"); printf("ID %04x:%04x\n", dfu_root->vendor, dfu_root->product); printf("Run-time device DFU version %04x\n", libusb_le16_to_cpu(dfu_root->func_dfu.bcdDFUVersion)); /* Transition from run-Time mode to DFU mode */ if (!(dfu_root->flags & DFU_IFF_DFU)) { int err; /* In the 'first round' during runtime mode, there can only be one * DFU Interface descriptor according to the DFU Spec. */ /* FIXME: check if the selected device really has only one */ runtime_vendor = dfu_root->vendor; runtime_product = dfu_root->product; printf("Claiming USB DFU Runtime Interface...\n"); if (libusb_claim_interface(dfu_root->dev_handle, dfu_root->interface) < 0) { errx(EX_IOERR, "Cannot claim interface %d", dfu_root->interface); } if (libusb_set_interface_alt_setting(dfu_root->dev_handle, dfu_root->interface, 0) < 0) { errx(EX_IOERR, "Cannot set alt interface zero"); } printf("Determining device status: "); err = dfu_get_status(dfu_root, &status); if (err == LIBUSB_ERROR_PIPE) { printf("Device does not implement get_status, assuming appIDLE\n"); status.bStatus = DFU_STATUS_OK; status.bwPollTimeout = 0; status.bState = DFU_STATE_appIDLE; status.iString = 0; } else if (err < 0) { errx(EX_IOERR, "error get_status"); } else { printf("state = %s, status = %d\n", dfu_state_to_string(status.bState), status.bStatus); } milli_sleep(status.bwPollTimeout); switch (status.bState) { case DFU_STATE_appIDLE: case DFU_STATE_appDETACH: if (!detach_unsupported) { printf("Device really in Runtime Mode, send DFU " "detach request...\n"); if (dfu_detach(dfu_root->dev_handle, dfu_root->interface, 1000) < 0) { warnx("error detaching"); } } if (dfu_root->func_dfu.bmAttributes & USB_DFU_WILL_DETACH) { printf("Device will detach and reattach...\n"); } else { printf("Resetting USB...\n"); ret = libusb_reset_device(dfu_root->dev_handle); if (ret < 0 && ret != LIBUSB_ERROR_NOT_FOUND) errx(EX_IOERR, "error resetting " "after detach"); } break; case DFU_STATE_dfuERROR: printf("dfuERROR, clearing status\n"); if (dfu_clear_status(dfu_root->dev_handle, dfu_root->interface) < 0) { errx(EX_IOERR, "error clear_status"); } /* fall through */ default: warnx("WARNING: Runtime device already in DFU state ?!?"); libusb_release_interface(dfu_root->dev_handle, dfu_root->interface); goto dfustate; } libusb_release_interface(dfu_root->dev_handle, dfu_root->interface); libusb_close(dfu_root->dev_handle); dfu_root->dev_handle = NULL; if (mode == MODE_DETACH) { libusb_exit(ctx); exit(0); } /* keeping handles open might prevent re-enumeration */ disconnect_devices(); milli_sleep(detach_delay * 1000); /* Change match vendor and product to impossible values to force * only DFU mode matches in the following probe */ match_vendor = match_product = 0x10000; probe_devices(ctx); if (dfu_root == NULL) { errx(EX_IOERR, "Lost device after RESET?"); } else if (dfu_root->next != NULL) { errx(EX_IOERR, "More than one DFU capable USB device found! " "Try `--list' and specify the serial number " "or disconnect all but one device"); } /* Check for DFU mode device */ if (!(dfu_root->flags | DFU_IFF_DFU)) errx(EX_SOFTWARE, "Device is not in DFU mode"); printf("Opening DFU USB Device...\n"); ret = libusb_open(dfu_root->dev, &dfu_root->dev_handle); if (ret || !dfu_root->dev_handle) { errx(EX_IOERR, "Cannot open device"); } } else { /* we're already in DFU mode, so we can skip the detach/reset * procedure */ /* If a match vendor/product was specified, use that as the runtime * vendor/product, otherwise use the DFU mode vendor/product */ runtime_vendor = match_vendor < 0 ? dfu_root->vendor : match_vendor; runtime_product = match_product < 0 ? dfu_root->product : match_product; } dfustate: #if 0 printf("Setting Configuration %u...\n", dfu_root->configuration); if (libusb_set_configuration(dfu_root->dev_handle, dfu_root->configuration) < 0) { errx(EX_IOERR, "Cannot set configuration"); } #endif printf("Claiming USB DFU Interface...\n"); if (libusb_claim_interface(dfu_root->dev_handle, dfu_root->interface) < 0) { errx(EX_IOERR, "Cannot claim interface"); } printf("Setting Alternate Setting #%d ...\n", dfu_root->altsetting); if (libusb_set_interface_alt_setting(dfu_root->dev_handle, dfu_root->interface, dfu_root->altsetting) < 0) { errx(EX_IOERR, "Cannot set alternate interface"); } status_again: printf("Determining device status: "); if (dfu_get_status(dfu_root, &status ) < 0) { errx(EX_IOERR, "error get_status"); } printf("state = %s, status = %d\n", dfu_state_to_string(status.bState), status.bStatus); milli_sleep(status.bwPollTimeout); switch (status.bState) { case DFU_STATE_appIDLE: case DFU_STATE_appDETACH: errx(EX_IOERR, "Device still in Runtime Mode!"); break; case DFU_STATE_dfuERROR: printf("dfuERROR, clearing status\n"); if (dfu_clear_status(dfu_root->dev_handle, dfu_root->interface) < 0) { errx(EX_IOERR, "error clear_status"); } goto status_again; break; case DFU_STATE_dfuDNLOAD_IDLE: case DFU_STATE_dfuUPLOAD_IDLE: printf("aborting previous incomplete transfer\n"); if (dfu_abort(dfu_root->dev_handle, dfu_root->interface) < 0) { errx(EX_IOERR, "can't send DFU_ABORT"); } goto status_again; break; case DFU_STATE_dfuIDLE: printf("dfuIDLE, continuing\n"); break; default: break; } if (DFU_STATUS_OK != status.bStatus ) { printf("WARNING: DFU Status: '%s'\n", dfu_status_to_string(status.bStatus)); /* Clear our status & try again. */ if (dfu_clear_status(dfu_root->dev_handle, dfu_root->interface) < 0) errx(EX_IOERR, "USB communication error"); if (dfu_get_status(dfu_root, &status) < 0) errx(EX_IOERR, "USB communication error"); if (DFU_STATUS_OK != status.bStatus) errx(EX_SOFTWARE, "Status is not OK: %d", status.bStatus); milli_sleep(status.bwPollTimeout); } printf("DFU mode device DFU version %04x\n", libusb_le16_to_cpu(dfu_root->func_dfu.bcdDFUVersion)); if (dfu_root->func_dfu.bcdDFUVersion == libusb_cpu_to_le16(0x11a)) dfuse_device = 1; /* If not overridden by the user */ if (!transfer_size) { transfer_size = libusb_le16_to_cpu( dfu_root->func_dfu.wTransferSize); if (transfer_size) { printf("Device returned transfer size %i\n", transfer_size); } else { errx(EX_IOERR, "Transfer size must be specified"); } } #ifdef HAVE_GETPAGESIZE /* autotools lie when cross-compiling for Windows using mingw32/64 */ #ifndef __MINGW32__ /* limitation of Linux usbdevio */ if ((int)transfer_size > getpagesize()) { transfer_size = getpagesize(); printf("Limited transfer size to %i\n", transfer_size); } #endif /* __MINGW32__ */ #endif /* HAVE_GETPAGESIZE */ if (transfer_size < dfu_root->bMaxPacketSize0) { transfer_size = dfu_root->bMaxPacketSize0; printf("Adjusted transfer size to %i\n", transfer_size); } switch (mode) { case MODE_UPLOAD: /* open for "exclusive" writing */ fd = open(file.name, O_WRONLY | O_BINARY | O_CREAT | O_EXCL | O_TRUNC, 0666); if (fd < 0) err(EX_IOERR, "Cannot open file %s for writing", file.name); if (dfuse_device || dfuse_options) { if (dfuse_do_upload(dfu_root, transfer_size, fd, dfuse_options) < 0) exit(1); } else { if (dfuload_do_upload(dfu_root, transfer_size, expected_size, fd) < 0) { exit(1); } } close(fd); break; case MODE_DOWNLOAD: if (((file.idVendor != 0xffff && file.idVendor != runtime_vendor) || (file.idProduct != 0xffff && file.idProduct != runtime_product)) && ((file.idVendor != 0xffff && file.idVendor != dfu_root->vendor) || (file.idProduct != 0xffff && file.idProduct != dfu_root->product))) { errx(EX_IOERR, "Error: File ID %04x:%04x does " "not match device (%04x:%04x or %04x:%04x)", file.idVendor, file.idProduct, runtime_vendor, runtime_product, dfu_root->vendor, dfu_root->product); } if (dfuse_device || dfuse_options || file.bcdDFU == 0x11a) { if (dfuse_do_dnload(dfu_root, transfer_size, &file, dfuse_options) < 0) exit(1); } else { if (dfuload_do_dnload(dfu_root, transfer_size, &file) < 0) exit(1); } break; case MODE_DETACH: if (detach_unsupported) break; ret = dfu_detach(dfu_root->dev_handle, dfu_root->interface, 1000); if (ret < 0) { warnx("can't detach"); } break; default: errx(EX_IOERR, "Unsupported mode: %u", mode); break; } if (final_reset) { if (detach_unsupported) { // STM32 DFU devices dont support DFU_DETACH // Instead, force the device into STATE_DFU_MANIFEST_WAIT_RESET // by sending a download request of size 0 and checking the state if (dfu_download(dfu_root->dev_handle, dfu_root->interface, 0x0, 0x0, NULL)) { warnx("Failure forcing a manifest"); } else { if (dfu_get_status(dfu_root, &status) < 0) { warnx("Unable to check status after manifest"); } else { printf("state = %s, status = %d\n", dfu_state_to_string(status.bState), status.bStatus); if (status.bState != STATE_DFU_MANIFEST) { warnx("Device should be in manifest state"); } } } } else { if (dfu_detach(dfu_root->dev_handle, dfu_root->interface, 1000) < 0) { /* Even if detach failed, just carry on to leave the device in a known state */ warnx("can't detach"); } } printf("Resetting USB to switch back to runtime mode\n"); ret = libusb_reset_device(dfu_root->dev_handle); if (ret < 0 && ret != LIBUSB_ERROR_NOT_FOUND) { errx(EX_IOERR, "error resetting after download"); } } libusb_close(dfu_root->dev_handle); dfu_root->dev_handle = NULL; libusb_exit(ctx); return (0); }