mspdebug/util/usbutil.c

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/* MSPDebug - debugging tool for MSP430 MCUs
* Copyright (C) 2009, 2010 Daniel Beer
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "usbutil.h"
#include "util.h"
#include "output.h"
static const char *device_help(const struct usb_device *dev)
{
static const struct {
int vendor;
int product;
const char *help;
} info[] = {
{0x0451, 0xf432, "eZ430-RF2500"},
{0x0451, 0xf430, "FET430UIF"},
{0x2047, 0x0010, "FET430UIF (V3 firmware)"},
{0x15ba, 0x0002, "Olimex MSP430-JTAG-TINY (v1)"},
{0x15ba, 0x0008, "Olimex MSP430-JTAG-ISO"},
{0x15ba, 0x0031, "Olimex MSP430-JTAG-TINY (v2)"},
{0x15ba, 0x0100, "Olimex MSP430-JTAG-ISO-MK2 (v2)"}
};
int i;
for (i = 0; i < ARRAY_LEN(info); i++)
if (dev->descriptor.idProduct == info[i].product &&
dev->descriptor.idVendor == info[i].vendor)
return info[i].help;
return "";
}
static int read_serial(struct usb_device *dev, char *buf, int max_len)
{
struct usb_dev_handle *dh = usb_open(dev);
if (!dh)
return -1;
if (usb_get_string_simple(dh, dev->descriptor.iSerialNumber,
buf, max_len) < 0) {
usb_close(dh);
return -1;
}
usb_close(dh);
return 0;
}
void usbutil_list(void)
{
const struct usb_bus *bus;
for (bus = usb_get_busses(); bus; bus = bus->next) {
struct usb_device *dev;
int busnum = atoi(bus->dirname);
printc("Devices on bus %03d:\n", busnum);
for (dev = bus->devices; dev; dev = dev->next) {
int devnum = atoi(dev->filename);
char serial[128];
printc(" %03d:%03d %04x:%04x %s",
busnum, devnum,
dev->descriptor.idVendor,
dev->descriptor.idProduct,
device_help(dev));
if (!read_serial(dev, serial, sizeof(serial)))
printc(" [serial: %s]\n", serial);
else
printc("\n");
}
}
}
2011-07-18 03:00:17 +00:00
struct usb_device *usbutil_find_by_id(int vendor, int product,
const char *requested_serial)
{
struct usb_bus *bus;
for (bus = usb_get_busses(); bus; bus = bus->next) {
struct usb_device *dev;
for (dev = bus->devices; dev; dev = dev->next) {
if (dev->descriptor.idVendor == vendor &&
dev->descriptor.idProduct == product) {
char buf[128];
if (!requested_serial ||
(!read_serial(dev, buf, sizeof(buf)) &&
!strcasecmp(requested_serial, buf)))
return dev;
}
}
}
if(requested_serial)
printc_err("usbutil: unable to find device matching "
"%04x:%04x with serial %s\n", vendor, product,
requested_serial);
else
printc_err("usbutil: unable to find a device matching "
"%04x:%04x\n", vendor, product);
return NULL;
}
struct usb_device *usbutil_find_by_loc(const char *loc)
{
char buf[64];
char *bus_text;
char *dev_text;
int target_bus;
int target_dev;
struct usb_bus *bus;
strncpy(buf, loc, sizeof(buf));
buf[sizeof(buf) - 1] = 0;
bus_text = strtok(buf, ":\t\r\n");
dev_text = strtok(NULL, ":\t\r\n");
if (!(bus_text && dev_text)) {
printc_err("usbutil: location must be specified as "
"<bus>:<device>\n");
return NULL;
}
target_bus = atoi(bus_text);
target_dev = atoi(dev_text);
for (bus = usb_get_busses(); bus; bus = bus->next) {
struct usb_device *dev;
int busnum = atoi(bus->dirname);
if (busnum != target_bus)
continue;
for (dev = bus->devices; dev; dev = dev->next) {
int devnum = atoi(dev->filename);
if (devnum == target_dev)
return dev;
}
}
printc_err("usbutil: unable to find %03d:%03d\n",
target_bus, target_dev);
return NULL;
}