mirror of
git://projects.qi-hardware.com/f32xbase.git
synced 2024-11-27 18:10:38 +02:00
79396b1777
to missing parentheses in device selection caused it to just pick the first device it found.
100 lines
2.0 KiB
C
100 lines
2.0 KiB
C
/*
|
|
* lib/usb.c - Common USB code for F32Xbase tools
|
|
*
|
|
* Written 2008-2010 by Werner Almesberger
|
|
* Copyright 2008-2010 Werner Almesberger
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <usb.h>
|
|
|
|
|
|
static uint16_t vendor = 0;
|
|
static uint16_t product = 0;
|
|
|
|
|
|
usb_dev_handle *open_usb(uint16_t default_vendor, uint16_t default_product)
|
|
{
|
|
const struct usb_bus *bus;
|
|
struct usb_device *dev;
|
|
usb_dev_handle *handle;
|
|
#ifdef DO_FULL_USB_BUREAUCRACY
|
|
int res;
|
|
#endif
|
|
|
|
usb_init();
|
|
usb_find_busses();
|
|
usb_find_devices();
|
|
|
|
for (bus = usb_get_busses(); bus; bus = bus->next)
|
|
for (dev = bus->devices; dev; dev = dev->next) {
|
|
if (dev->descriptor.idVendor !=
|
|
(vendor ? vendor : default_vendor))
|
|
continue;
|
|
if (dev->descriptor.idProduct !=
|
|
(product ? product : default_product))
|
|
continue;
|
|
handle = usb_open(dev);
|
|
#ifdef DO_FULL_USB_BUREAUCRACY
|
|
if (!handle)
|
|
return NULL;
|
|
res = usb_set_configuration(handle, 1);
|
|
if (res < 0) {
|
|
fprintf(stderr, "usb_set_configuration: %d\n",
|
|
res);
|
|
return NULL;
|
|
}
|
|
res = usb_claim_interface(handle, 0);
|
|
if (res < 0) {
|
|
fprintf(stderr, "usb_claim_interface: %d\n",
|
|
res);
|
|
return NULL;
|
|
}
|
|
res = usb_set_altinterface(handle, 0);
|
|
if (res < 0) {
|
|
fprintf(stderr, "usb_set_altinterface: %d\n",
|
|
res);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
return handle;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void bad_id(const char *id)
|
|
{
|
|
fprintf(stderr, "\"%s\" is not a valid vendor:product ID\n", id);
|
|
exit(1);
|
|
}
|
|
|
|
|
|
void parse_usb_id(const char *id)
|
|
{
|
|
unsigned long tmp;
|
|
char *end;
|
|
|
|
tmp = strtoul(id, &end, 16);
|
|
if (*end != ':')
|
|
bad_id(id);
|
|
if (tmp > 0xffff)
|
|
bad_id(id);
|
|
vendor = tmp;
|
|
tmp = strtoul(end+1, &end, 16);
|
|
if (*end)
|
|
bad_id(id);
|
|
if (tmp > 0xffff)
|
|
bad_id(id);
|
|
product = tmp;
|
|
}
|