/*
* dfu-util
*
* (C) 2007-2008 by OpenMoko, Inc.
* Written by Harald Welte <laforge@openmoko.org>
*
* Based on existing code of dfu-programmer-0.4
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <getopt.h>
#include <libusb.h>
#include <errno.h>
#include <fcntl.h>
#include "dfu.h"
#include "usb_dfu.h"
#include "dfu_file.h"
#include "dfu_load.h"
#include "dfuse.h"
#include "quirks.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_USBPATH_H
#include <usbpath.h>
#endif
/* ugly hack for Win32 */
#ifndef O_BINARY
#define O_BINARY 0
#endif
int debug;
int verbose = 0;
/* If we really have to guess (non-compliant devices) */
#define DEFAULT_TRANSFER_SIZE 1024
/* USB string descriptor should contain max 126 UTF-16 characters
* but 253 would even accomodate any UTF-8 encoding */
#define MAX_DESC_STR_LEN 253
/* Find DFU interfaces in a given device.
* Iterate through all DFU interfaces and their alternate settings
* and call the passed handler function on each setting until handler
* returns non-zero. */
static int find_dfu_if(libusb_device *dev,
int (*handler)(struct dfu_if *, void *),
void *v)
{
struct libusb_device_descriptor desc;
struct libusb_config_descriptor *cfg;
const struct libusb_interface_descriptor *intf;
const struct libusb_interface *uif;
struct dfu_if _dif, *dfu_if = &_dif;
int cfg_idx, intf_idx, alt_idx;
int rc;
memset(dfu_if, 0, sizeof(*dfu_if));
libusb_get_device_descriptor(dev, &desc);
for (cfg_idx = 0; cfg_idx < desc.bNumConfigurations;
cfg_idx++) {
libusb_get_config_descriptor(dev, cfg_idx, &cfg);
/* in some cases, noticably FreeBSD if uid != 0,
* the configuration descriptors are empty */
if (!cfg)
return 0;
for (intf_idx = 0; intf_idx < cfg->bNumInterfaces;
intf_idx++) {
uif = &cfg->interface[intf_idx];
if (!uif)
return 0;
for (alt_idx = 0;
alt_idx < uif->num_altsetting; alt_idx++) {
intf = &uif->altsetting[alt_idx];
if (!intf)
return 0;
if (intf->bInterfaceClass == 0xfe &&
intf->bInterfaceSubClass == 1) {
dfu_if->dev = dev;
dfu_if->vendor =
desc.idVendor;
dfu_if->product =
desc.idProduct;
dfu_if->configuration = cfg->
bConfigurationValue;
dfu_if->interface =
intf->bInterfaceNumber;
dfu_if->altsetting =
intf->bAlternateSetting;
if (intf->bInterfaceProtocol == 2)
dfu_if->flags |= DFU_IFF_DFU;
else
dfu_if->flags &= ~DFU_IFF_DFU;
if (!handler)
return 1;
rc = handler(dfu_if, v);
if (rc != 0)
return rc;
}
}
}
libusb_free_config_descriptor(cfg);
}
return 0;
}
static int _get_first_cb(struct dfu_if *dif, void *v)
{
struct dfu_if *v_dif = v;
/* Copy everything except the device handle.
* This depends heavily on this member being last! */
memcpy(v_dif, dif, sizeof(*v_dif)-sizeof(libusb_device_handle *));
/* return a value that makes find_dfu_if return immediately */
return 1;
}
/* Fills in dif with the first found DFU interface */
static int get_first_dfu_if(struct dfu_if *dif)
{
return find_dfu_if(dif->dev, &_get_first_cb, (void *) dif);
}
static int _check_match_cb(struct dfu_if *dif, void *v)
{
struct dfu_if *v_dif = v;
if (v_dif->flags & DFU_IFF_IFACE &&
dif->interface != v_dif->interface)
return 0;
if (v_dif->flags & DFU_IFF_ALT &&
dif->altsetting != v_dif->altsetting)
return 0;
return _get_first_cb(dif, v);
}
/* Fills in dif from the matching DFU interface/altsetting */
static int get_matching_dfu_if(struct dfu_if *dif)
{
return find_dfu_if(dif->dev, &_check_match_cb, (void *) dif);
}
static int _count_match_cb(struct dfu_if *dif, void *v)
{
struct dfu_if *v_dif = v;
if (v_dif->flags & DFU_IFF_IFACE &&
dif->interface != v_dif->interface)
return 0;
if (v_dif->flags & DFU_IFF_ALT &&
dif->altsetting != v_dif->altsetting)
return 0;
v_dif->count++;
return 0;
}
/* Count matching DFU interface/altsetting */
static int count_matching_dfu_if(struct dfu_if *dif)
{
dif->count = 0;
find_dfu_if(dif->dev, &_count_match_cb, (void *) dif);
return dif->count;
}
/* Retrieves alternate interface name string.
* Returns string length, or negative on error */
static int get_alt_name(struct dfu_if *dfu_if, unsigned char *name)
{
libusb_device *dev = dfu_if->dev;
struct libusb_config_descriptor *cfg;
int alt_name_str_idx;
int ret;
ret = libusb_get_config_descriptor_by_value(dev, dfu_if->configuration,
&cfg);
if (ret)
return ret;
alt_name_str_idx = cfg->interface[dfu_if->interface].
altsetting[dfu_if->altsetting].iInterface;
ret = -1;
if (alt_name_str_idx) {
if (!dfu_if->dev_handle)
libusb_open(dfu_if->dev, &dfu_if->dev_handle);
if (dfu_if->dev_handle)
ret = libusb_get_string_descriptor_ascii(
dfu_if->dev_handle, alt_name_str_idx,
name, MAX_DESC_STR_LEN);
}
libusb_free_config_descriptor(cfg);
return ret;
}
static int print_dfu_if(struct dfu_if *dfu_if, void *v)
{
unsigned char name[MAX_DESC_STR_LEN+1] = "UNDEFINED";
get_alt_name(dfu_if, name);
printf("Found %s: [%04x:%04x] devnum=%u, cfg=%u, intf=%u, "
"alt=%u, name=\"%s\"\n",
dfu_if->flags & DFU_IFF_DFU ? "DFU" : "Runtime",
dfu_if->vendor, dfu_if->product, dfu_if->devnum,
dfu_if->configuration, dfu_if->interface,
dfu_if->altsetting, name);
return 0;
}
/* Walk the device tree and print out DFU devices */
static int list_dfu_interfaces(libusb_context *ctx)
{
libusb_device **list;
libusb_device *dev;
ssize_t num_devs, i;
num_devs = libusb_get_device_list(ctx, &list);
for (i = 0; i < num_devs; ++i) {
dev = list[i];
find_dfu_if(dev, &print_dfu_if, NULL);
}
libusb_free_device_list(list, 1);
return 0;
}
static int alt_by_name(struct dfu_if *dfu_if, void *v)
{
unsigned char name[MAX_DESC_STR_LEN+1];
if (get_alt_name(dfu_if, name) < 0)
return 0;
if (strcmp((char *)name, v))
return 0;
/*
* Return altsetting+1 so that we can use return value 0 to indicate
* "not found".
*/
return dfu_if->altsetting+1;
}
static int _count_cb(struct dfu_if *dif, void *v)
{
int *count = v;
(*count)++;
return 0;
}
/* Count DFU interfaces within a single device */
static int count_dfu_interfaces(libusb_device *dev)
{
int num_found = 0;
find_dfu_if(dev, &_count_cb, (void *) &num_found);
return num_found;
}
/* Iterate over all matching DFU capable devices within system */
static int iterate_dfu_devices(libusb_context *ctx, struct dfu_if *dif,
int (*action)(struct libusb_device *dev, void *user), void *user)
{
libusb_device **list;
ssize_t num_devs, i;
num_devs = libusb_get_device_list(ctx, &list);
for (i = 0; i < num_devs; ++i) {
int retval;
struct libusb_device_descriptor desc;
struct libusb_device *dev = list[i];
if (dif && (dif->flags & DFU_IFF_DEVNUM) &&
(libusb_get_bus_number(dev) != dif->bus ||
libusb_get_device_address(dev) != dif->devnum))
continue;
libusb_get_device_descriptor(dev, &desc);
if (dif && (dif->flags & DFU_IFF_VENDOR) &&
desc.idVendor != dif->vendor)
continue;
if (dif && (dif->flags & DFU_IFF_PRODUCT) &&
desc.idProduct != dif->product)
continue;
if (!count_dfu_interfaces(dev))
continue;
retval = action(dev, user);
if (retval) {
libusb_free_device_list(list, 0);
return retval;
}
}
libusb_free_device_list(list, 0);
return 0;
}
static int found_dfu_device(struct libusb_device *dev, void *user)
{
struct dfu_if *dif = user;
dif->dev = dev;
return 1;
}
/* Find the first DFU-capable device, save it in dfu_if->dev */
static int get_first_dfu_device(libusb_context *ctx, struct dfu_if *dif)
{
return iterate_dfu_devices(ctx, dif, found_dfu_device, dif);
}
static int count_one_dfu_device(struct libusb_device *dev, void *user)
{
int *num = user;
(*num)++;
return 0;
}
/* Count DFU capable devices within system */
static int count_dfu_devices(libusb_context *ctx, struct dfu_if *dif)
{
int num_found = 0;
iterate_dfu_devices(ctx, dif, count_one_dfu_device, &num_found);
return num_found;
}
static void parse_vendprod(u_int16_t *vendor, u_int16_t *product,
const char *str)
{
const char *colon;
*vendor = strtoul(str, NULL, 16);
colon = strchr(str, ':');
if (colon)
*product = strtoul(colon + 1, NULL, 16);
else
*product = 0;
}
#ifdef HAVE_USBPATH_H
static int resolve_device_path(struct dfu_if *dif)
{
int res;
res = usb_path2devnum(dif->path);
if (res < 0)
return -EINVAL;
if (!res)
return 0;
dif->bus = atoi(dif->path);
dif->devnum = res;
dif->flags |= DFU_IFF_DEVNUM;
return res;
}
#else /* HAVE_USBPATH_H */
static int resolve_device_path(struct dfu_if *dif)
{
fprintf(stderr,
"USB device paths are not supported by this dfu-util.\n");
exit(1);
}
#endif /* !HAVE_USBPATH_H */
/* Look for a descriptor in a concatenated descriptor list
* Will return desc_index'th match of given descriptor type
* Returns length of found descriptor, limited to res_size */
static int find_descriptor(const unsigned char *desc_list, int list_len,
uint8_t desc_type, uint8_t desc_index,
uint8_t *res_buf, int res_size)
{
int p = 0;
int hit = 0;
while (p + 1 < list_len) {
int desclen;
desclen = (int) desc_list[p];
if (desclen == 0) {
fprintf(stderr, "Error: Invalid descriptor list\n");
return -1;
}
if (desc_list[p + 1] == desc_type && hit++ == desc_index) {
if (desclen > res_size)
desclen = res_size;
if (p + desclen > list_len)
desclen = list_len - p;
memcpy(res_buf, &desc_list[p], desclen);
return desclen;
}
p += (int) desc_list[p];
}
return 0;
}
/* Look for a descriptor in the active configuration
* Will also find extra descriptors which are normally
* not returned by the standard libusb_get_descriptor() */
static int usb_get_any_descriptor(struct libusb_device_handle *dev_handle,
uint8_t desc_type,
uint8_t desc_index,
unsigned char *resbuf, int res_len)
{
struct libusb_device *dev = libusb_get_device(dev_handle);
struct libusb_config_descriptor *config;
int ret;
uint16_t conflen;
unsigned char *cbuf;
/* Get the total length of the configuration descriptors */
ret = libusb_get_active_config_descriptor(dev, &config);
if (ret == LIBUSB_ERROR_NOT_FOUND) {
fprintf(stderr, "Error: Device is unconfigured\n");
return -1;
} else if (ret) {
fprintf(stderr, "Error: failed "
"libusb_get_active_config_descriptor()\n");
exit(1);
}
conflen = config->wTotalLength;
libusb_free_config_descriptor(config);
/* Suck in the configuration descriptor list from device */
cbuf = malloc(conflen);
ret = libusb_get_descriptor(dev_handle, LIBUSB_DT_CONFIG,
desc_index, cbuf, conflen);
if (ret < conflen) {
fprintf(stderr, "Warning: failed to retrieve complete "
"configuration descriptor, got %i/%i\n",
ret, conflen);
conflen = ret;
}
/* Search through the configuration descriptor list */
ret = find_descriptor(cbuf, conflen, desc_type, desc_index,
resbuf, res_len);
free(cbuf);
/* A descriptor must be at least 2 bytes long */
if (ret > 1) {
if (verbose)
printf("Found descriptor in complete configuration "
"descriptor list\n");
return ret;
}
/* Finally try to retrieve it requesting the device directly
* This is not supported on all devices for non-standard types */
return libusb_get_descriptor(dev_handle, desc_type, desc_index,
resbuf, res_len);
}
/* Get cached extra descriptor from libusb for an interface
* Returns length of found descriptor */
static int get_cached_extra_descriptor(struct libusb_device *dev,
uint8_t bConfValue,
uint8_t intf,
uint8_t desc_type, uint8_t desc_index,
unsigned char *resbuf, int res_len)
{
struct libusb_config_descriptor *cfg;
const unsigned char *extra;
int extra_len;
int ret;
int alt;
ret = libusb_get_config_descriptor_by_value(dev, bConfValue, &cfg);
if (ret == LIBUSB_ERROR_NOT_FOUND) {
fprintf(stderr, "Error: Device is unconfigured\n");
return -1;
} else if (ret) {
fprintf(stderr, "Error: failed "
"libusb_config_descriptor_by_value()\n");
exit(1);
}
/* Extra descriptors can be shared between alternate settings but
* libusb may attach them to one setting. Therefore go through all.
* Note that desc_index is per alternate setting, hits will not be
* counted from one to another */
for (alt = 0; alt < cfg->interface[intf].num_altsetting;
alt++) {
extra = cfg->interface[intf].altsetting[alt].extra;
extra_len = cfg->interface[intf].altsetting[alt].extra_length;
if (extra_len > 1)
ret = find_descriptor(extra, extra_len, desc_type,
desc_index, resbuf, res_len);
if (ret > 1)
break;
}
libusb_free_config_descriptor(cfg);
if (ret < 2 && verbose)
printf("Did not find cached descriptor\n");
return ret;
}
static void help(void)
{
printf("Usage: dfu-util [options] ...\n"
" -h --help\t\t\tPrint this help message\n"
" -V --version\t\t\tPrint the version number\n"
" -v --verbose\t\t\tPrint verbose debug statements\n"
" -l --list\t\t\tList the currently attached DFU capable USB devices\n"
" -d --device vendor:product\tSpecify Vendor/Product ID of DFU device\n"
" -p --path bus-port. ... .port\tSpecify path to DFU device\n"
" -c --cfg config_nr\t\tSpecify the Configuration of DFU device\n"
" -i --intf intf_nr\t\tSpecify the DFU Interface number\n"
" -a --alt alt\t\t\tSpecify the Altsetting of the DFU Interface\n"
"\t\t\t\tby name or by number\n"
" -t --transfer-size\t\tSpecify the number of bytes per USB Transfer\n"
" -U --upload file\t\tRead firmware from device into <file>\n"
" -D --download file\t\tWrite firmware from <file> into device\n"
" -R --reset\t\t\tIssue USB Reset signalling once we're finished\n"
" -s --dfuse-address address\tST DfuSe mode, specify target address for\n"
"\t\t\t\traw file download or upload. Not applicable for\n"
"\t\t\t\tDfuSe file (.dfu) downloads\n"
);
}
static void print_version(void)
{
printf("dfu-util %s\n\n", VERSION);
printf("(C) 2005-2008 by Weston Schmidt, Harald Welte and OpenMoko Inc.\n"
"(C) 2010-2011 Tormod Volden (DfuSe support)\n"
"This program is Free Software and has ABSOLUTELY NO WARRANTY\n\n");
printf("dfu-util does currently only support DFU version 1.0\n\n");
}
static struct option opts[] = {
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'V' },
{ "verbose", 0, 0, 'v' },
{ "list", 0, 0, 'l' },
{ "device", 1, 0, 'd' },
{ "path", 1, 0, 'p' },
{ "configuration", 1, 0, 'c' },
{ "cfg", 1, 0, 'c' },
{ "interface", 1, 0, 'i' },
{ "intf", 1, 0, 'i' },
{ "altsetting", 1, 0, 'a' },
{ "alt", 1, 0, 'a' },
{ "transfer-size", 1, 0, 't' },
{ "upload", 1, 0, 'U' },
{ "download", 1, 0, 'D' },
{ "reset", 0, 0, 'R' },
{ "dfuse-address", 1, 0, 's' },
};
enum mode {
MODE_NONE,
MODE_VERSION,
MODE_LIST,
MODE_UPLOAD,
MODE_DOWNLOAD,
};
int main(int argc, char **argv)
{
struct dfu_if _rt_dif, _dif, *dif = &_dif;
int num_devs;
int num_ifs;
unsigned int transfer_size = 0;
unsigned int host_page_size;
enum mode mode = MODE_NONE;
struct dfu_status status;
struct usb_dfu_func_descriptor func_dfu = {0}, func_dfu_rt = {0};
libusb_context *ctx;
struct dfu_file file;
char *alt_name = NULL; /* query alt name if non-NULL */
char *device_id_filter = NULL;
unsigned char active_alt_name[MAX_DESC_STR_LEN+1];
char *end;
int final_reset = 0;
int ret;
int dfuse = 0;
unsigned int dfuse_address = 0; /* FIXME allow address to be zero? */
host_page_size = getpagesize();
memset(dif, 0, sizeof(*dif));
file.name = NULL;
while (1) {
int c, option_index = 0;
c = getopt_long(argc, argv, "hVvld:p:c:i:a:t:U:D:Rs:", opts,
&option_index);
if (c == -1)
break;
switch (c) {
case 'h':
help();
exit(0);
break;
case 'V':
mode = MODE_VERSION;
break;
case 'v':
verbose++;
break;
case 'l':
mode = MODE_LIST;
break;
case 'd':
device_id_filter = optarg;
break;
case 'p':
/* Parse device path */
dif->path = optarg;
dif->flags |= DFU_IFF_PATH;
ret = resolve_device_path(dif);
if (ret < 0) {
fprintf(stderr, "unable to parse `%s'\n",
optarg);
exit(2);
}
if (!ret) {
fprintf(stderr, "cannot find `%s'\n", optarg);
exit(1);
}
break;
case 'c':
/* Configuration */
dif->configuration = atoi(optarg);
dif->flags |= DFU_IFF_CONFIG;
break;
case 'i':
/* Interface */
dif->interface = atoi(optarg);
dif->flags |= DFU_IFF_IFACE;
break;
case 'a':
/* Interface Alternate Setting */
dif->altsetting = strtoul(optarg, &end, 0);
if (*end)
alt_name = optarg;
dif->flags |= DFU_IFF_ALT;
break;
case 't':
transfer_size = atoi(optarg);
break;
case 'U':
mode = MODE_UPLOAD;
file.name = optarg;
break;
case 'D':
mode = MODE_DOWNLOAD;
file.name = optarg;
break;
case 'R':
final_reset = 1;
break;
case 's':
dfuse = 1;
if (strcmp(optarg, "default")) {
dfuse_address = strtoul(optarg, &end, 0);
if (!dfuse_address || (*end)) {
fprintf(stderr, "invalid dfuse address: %s\n",
optarg);
exit(2);
}
}
break;
default:
help();
exit(2);
}
}
print_version();
if (mode == MODE_VERSION) {
exit(0);
}
if (mode == MODE_NONE) {
fprintf(stderr, "Error: You need to specify one of -D or -U\n\n");
help();
exit(2);
}
if (device_id_filter) {
/* Parse device ID */
parse_vendprod(&dif->vendor, &dif->product, device_id_filter);
printf("Filter on vendor = 0x%04x product = 0x%04x\n",
dif->vendor, dif->product);
if (dif->vendor)
dif->flags |= DFU_IFF_VENDOR;
if (dif->product)
dif->flags |= DFU_IFF_PRODUCT;
}
ret = libusb_init(&ctx);
if (ret) {
fprintf(stderr, "unable to initialize libusb: %i\n", ret);
return EXIT_FAILURE;
}
if (verbose > 1) {
libusb_set_debug(ctx, 255);
}
if (mode == MODE_LIST) {
list_dfu_interfaces(ctx);
exit(0);
}
dfu_init(5000);
num_devs = count_dfu_devices(ctx, dif);
if (num_devs == 0) {
fprintf(stderr, "No DFU capable USB device found\n");
exit(1);
} else if (num_devs > 1) {
/* 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 */
fprintf(stderr, "More than one DFU capable USB device found, "
"you might try `--list' and then disconnect all but one "
"device\n");
exit(3);
}
if (!get_first_dfu_device(ctx, dif))
exit(3);
/* We have exactly one device. Its libusb_device is now in dif->dev */
printf("Opening DFU USB device... ");
libusb_open(dif->dev, &dif->dev_handle);
if (!dif->dev_handle) {
fprintf(stderr, "Cannot open device \n");
exit(1);
}
/* try to find first DFU interface of device */
memcpy(&_rt_dif, dif, sizeof(_rt_dif));
if (!get_first_dfu_if(&_rt_dif))
exit(1);
printf("ID %04x:%04x\n", _rt_dif.vendor, _rt_dif.product);
/* find set of quirks for this device */
set_quirks(_rt_dif.vendor, _rt_dif.product);
/* Obtain run-time DFU functional descriptor without asking device
* E.g. Freerunner does not like to be requested at this point */
ret = get_cached_extra_descriptor(_rt_dif.dev, _rt_dif.configuration,
_rt_dif.interface, USB_DT_DFU, 0,
(unsigned char *) &func_dfu_rt,
sizeof(func_dfu_rt));
if (ret == 7) {
/* DFU 1.0 does not have this field */
printf("Deducing device DFU version from functional descriptor "
"length\n");
func_dfu_rt.bcdDFUVersion = libusb_cpu_to_le16(0x0100);
} else if (ret < 9) {
fprintf(stderr, "WARNING: Can not find cached DFU functional "
"descriptor\n");
printf("Warning: Assuming DFU version 1.0\n");
func_dfu_rt.bcdDFUVersion = libusb_cpu_to_le16(0x0100);
}
printf("Run-time device DFU version %04x\n",
libusb_le16_to_cpu(func_dfu_rt.bcdDFUVersion));
/* Transition from run-Time mode to DFU mode */
if (!(_rt_dif.flags & DFU_IFF_DFU)) {
/* 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 */
printf("Claiming USB DFU Runtime Interface...\n");
if (libusb_claim_interface(_rt_dif.dev_handle, _rt_dif.interface) < 0) {
fprintf(stderr, "Cannot claim interface %d\n",
_rt_dif.interface);
exit(1);
}
if (libusb_set_interface_alt_setting(_rt_dif.dev_handle, _rt_dif.interface, 0) < 0) {
fprintf(stderr, "Cannot set alt interface\n");
exit(1);
}
printf("Determining device status: ");
if (dfu_get_status(_rt_dif.dev_handle, _rt_dif.interface, &status ) < 0) {
fprintf(stderr, "error get_status\n");
exit(1);
}
printf("state = %s, status = %d\n",
dfu_state_to_string(status.bState), status.bStatus);
if (!(quirks & QUIRK_POLLTIMEOUT))
usleep(status.bwPollTimeout * 1000);
switch (status.bState) {
case DFU_STATE_appIDLE:
case DFU_STATE_appDETACH:
printf("Device really in Runtime Mode, send DFU "
"detach request...\n");
if (dfu_detach(_rt_dif.dev_handle,
_rt_dif.interface, 1000) < 0) {
fprintf(stderr, "error detaching\n");
exit(1);
break;
}
libusb_release_interface(_rt_dif.dev_handle,
_rt_dif.interface);
if (func_dfu_rt.bmAttributes & USB_DFU_WILL_DETACH) {
printf("Device will detach and reattach...\n");
} else {
printf("Resetting USB...\n");
ret = libusb_reset_device(_rt_dif.dev_handle);
if (ret < 0 && ret != LIBUSB_ERROR_NOT_FOUND)
fprintf(stderr, "error resetting "
"after detach\n");
}
sleep(2);
break;
case DFU_STATE_dfuERROR:
printf("dfuERROR, clearing status\n");
if (dfu_clear_status(_rt_dif.dev_handle,
_rt_dif.interface) < 0) {
fprintf(stderr, "error clear_status\n");
exit(1);
break;
}
break;
default:
fprintf(stderr, "WARNING: Runtime device already "
"in DFU state ?!?\n");
goto dfustate;
break;
}
libusb_release_interface(_rt_dif.dev_handle,
_rt_dif.interface);
libusb_close(_rt_dif.dev_handle);
/* now we need to re-scan the bus and locate our device */
// if (usb_find_devices() < 2)
// printf("not at least 2 device changes found ?!?\n");
if (dif->flags & DFU_IFF_PATH) {
ret = resolve_device_path(dif);
if (ret < 0) {
fprintf(stderr,
"internal error: cannot re-parse `%s'\n",
dif->path);
abort();
}
if (!ret) {
fprintf(stderr,
"Can't resolve path after RESET?\n");
exit(1);
}
}
num_devs = count_dfu_devices(ctx, dif);
if (num_devs == 0) {
fprintf(stderr, "Lost device after RESET?\n");
exit(1);
} else if (num_devs > 1) {
fprintf(stderr, "More than one DFU capable USB "
"device found, you might try `--list' and "
"then disconnect all but one device\n");
exit(1);
}
if (!get_first_dfu_device(ctx, dif))
exit(3);
printf("Opening USB Device...\n");
libusb_open(dif->dev, &dif->dev_handle);
if (!dif->dev_handle) {
fprintf(stderr, "Cannot open device\n");
exit(1);
}
} else {
/* we're already in DFU mode, so we can skip the detach/reset
* procedure */
}
dfustate:
if (alt_name) {
int n;
n = find_dfu_if(dif->dev, &alt_by_name, alt_name);
if (!n) {
fprintf(stderr, "No such Alternate Setting: \"%s\"\n",
alt_name);
exit(1);
}
if (n < 0) {
fprintf(stderr, "Error %d in name lookup\n", n);
exit(1);
}
dif->altsetting = n-1;
}
num_ifs = count_matching_dfu_if(dif);
if (num_ifs < 0) {
fprintf(stderr, "No matching DFU Interface after RESET?!?\n");
exit(1);
} else if (num_ifs > 1 ) {
fprintf(stderr, "We have %u DFU Interfaces/Altsettings,"
" you have to specify one via --intf / --alt"
" options\n", num_ifs);
exit(1);
}
if (!get_matching_dfu_if(dif)) {
fprintf(stderr, "Can't find the matching DFU interface/"
"altsetting\n");
exit(1);
}
print_dfu_if(dif, NULL);
if (get_alt_name(dif, active_alt_name) > 0)
dif->alt_name = active_alt_name;
else
dif->alt_name = NULL;
#if 0
printf("Setting Configuration %u...\n", dif->configuration);
if (libusb_set_configuration(dif->dev_handle, dif->configuration) < 0) {
fprintf(stderr, "Cannot set configuration\n");
exit(1);
}
#endif
printf("Claiming USB DFU Interface...\n");
if (libusb_claim_interface(dif->dev_handle, dif->interface) < 0) {
fprintf(stderr, "Cannot claim interface\n");
exit(1);
}
printf("Setting Alternate Setting #%d ...\n", dif->altsetting);
if (libusb_set_interface_alt_setting(dif->dev_handle, dif->interface, dif->altsetting) < 0) {
fprintf(stderr, "Cannot set alternate interface\n");
exit(1);
}
status_again:
printf("Determining device status: ");
if (dfu_get_status(dif->dev_handle, dif->interface, &status ) < 0) {
fprintf(stderr, "error get_status\n");
exit(1);
}
printf("state = %s, status = %d\n",
dfu_state_to_string(status.bState), status.bStatus);
if (!(quirks & QUIRK_POLLTIMEOUT))
usleep(status.bwPollTimeout * 1000);
switch (status.bState) {
case DFU_STATE_appIDLE:
case DFU_STATE_appDETACH:
fprintf(stderr, "Device still in Runtime Mode!\n");
exit(1);
break;
case DFU_STATE_dfuERROR:
printf("dfuERROR, clearing status\n");
if (dfu_clear_status(dif->dev_handle, dif->interface) < 0) {
fprintf(stderr, "error clear_status\n");
exit(1);
}
goto status_again;
break;
case DFU_STATE_dfuDNLOAD_IDLE:
case DFU_STATE_dfuUPLOAD_IDLE:
printf("aborting previous incomplete transfer\n");
if (dfu_abort(dif->dev_handle, dif->interface) < 0) {
fprintf(stderr, "can't send DFU_ABORT\n");
exit(1);
}
goto status_again;
break;
case DFU_STATE_dfuIDLE:
printf("dfuIDLE, continuing\n");
break;
}
if (DFU_STATUS_OK != status.bStatus ) {
printf("WARNING: DFU Status: '%s'\n",
dfu_status_to_string(status.bStatus));
/* Clear our status & try again. */
dfu_clear_status(dif->dev_handle, dif->interface);
dfu_get_status(dif->dev_handle, dif->interface, &status);
if (DFU_STATUS_OK != status.bStatus) {
fprintf(stderr, "Error: %d\n", status.bStatus);
exit(1);
}
if (!(quirks & QUIRK_POLLTIMEOUT))
usleep(status.bwPollTimeout * 1000);
}
/* Get the DFU mode DFU functional descriptor
* If it is not found cached, we will request it from the device */
ret = get_cached_extra_descriptor(dif->dev, dif->configuration,
dif->interface, USB_DT_DFU, 0,
(unsigned char *) &func_dfu,
sizeof(func_dfu));
if (ret < 7) {
fprintf(stderr, "Error obtaining cached DFU functional "
"descriptor\n");
ret = usb_get_any_descriptor(dif->dev_handle,
USB_DT_DFU, 0,
(unsigned char *) &func_dfu,
sizeof(func_dfu));
}
if (ret == 7) {
printf("Deducing device DFU version from functional descriptor "
"length\n");
func_dfu.bcdDFUVersion = libusb_cpu_to_le16(0x0100);
} else if (ret < 9) {
printf("Error obtaining DFU functional descriptor\n");
printf("Warning: Assuming DFU version 1.0\n");
func_dfu.bcdDFUVersion = libusb_cpu_to_le16(0x0100);
printf("Warning: Transfer size can not be detected\n");
func_dfu.wTransferSize = 0;
}
printf("DFU mode device DFU version %04x\n",
libusb_le16_to_cpu(func_dfu.bcdDFUVersion));
if (func_dfu.bcdDFUVersion == 0x11a)
dfuse = 1;
if (!transfer_size) {
transfer_size = libusb_le16_to_cpu(func_dfu.wTransferSize);
printf("Device returned transfer size %i\n", transfer_size);
}
/* if returned zero or not detected (and not user specified) */
if (!transfer_size) {
transfer_size = DEFAULT_TRANSFER_SIZE;
printf("Warning: Trying default transfer size %i\n",
transfer_size);
}
/* limitation of Linux usbdevio */
if (transfer_size > host_page_size) {
transfer_size = host_page_size;
printf("Limited transfer size to %i\n", transfer_size);
}
/* DFU specification */
struct libusb_device_descriptor desc;
libusb_get_device_descriptor(dif->dev, &desc);
if (transfer_size < desc.bMaxPacketSize0) {
transfer_size = desc.bMaxPacketSize0;
printf("Adjusted transfer size to %i\n", transfer_size);
}
switch (mode) {
case MODE_UPLOAD:
file.fd = open(file.name, O_WRONLY|O_CREAT|O_EXCL, 0644);
if (file.fd < 0) {
perror(file.name);
exit(1);
}
if (dfuse) {
if (dfuse_do_upload(dif, transfer_size, file,
dfuse_address) < 0)
exit(1);
} else {
if (dfuload_do_upload(dif, transfer_size, file) < 0)
exit(1);
}
close(file.fd);
break;
case MODE_DOWNLOAD:
file.fd = open(file.name, O_RDONLY|O_BINARY);
if (file.fd < 0) {
perror(file.name);
exit(1);
}
ret = parse_dfu_suffix(&file);
if (ret < 0)
exit(1);
if (ret == 0) {
fprintf(stderr, "Warning: File has no DFU suffix\n");
} else if (file.bcdDFU != 0x0100 && file.bcdDFU != 0x11a) {
fprintf(stderr, "Unsupported DFU file revision "
"%04x\n", file.bcdDFU);
exit(1);
}
if (file.idVendor != 0xffff &&
dif->vendor != file.idVendor) {
fprintf(stderr, "Warning: File vendor ID %04x does "
"not match device %04x\n", file.idVendor, dif->vendor);
}
if (file.idProduct != 0xffff &&
dif->product != file.idProduct) {
fprintf(stderr, "Warning: File product ID %04x does "
"not match device %04x\n", file.idProduct, dif->product);
}
if (dfuse || file.bcdDFU == 0x11a) {
if (dfuse_do_dnload(dif, transfer_size, file,
dfuse_address) < 0)
exit(1);
} else {
if (dfuload_do_dnload(dif, transfer_size, file) < 0)
exit(1);
}
close(file.fd);
break;
default:
fprintf(stderr, "Unsupported mode: %u\n", mode);
exit(1);
}
if (final_reset) {
if (dfu_detach(dif->dev_handle, dif->interface, 1000) < 0) {
fprintf(stderr, "can't detach\n");
}
printf("Resetting USB to switch back to runtime mode\n");
ret = libusb_reset_device(dif->dev_handle);
if (ret < 0 && ret != LIBUSB_ERROR_NOT_FOUND) {
fprintf(stderr, "error resetting after download\n");
}
}
libusb_close(dif->dev_handle);
libusb_exit(ctx);
exit(0);
}