Use libusb-1.0 for USB communication

This commit is contained in:
Peter Stuge 2011-08-13 21:15:04 +02:00 committed by Harald Welte
parent 7b76e0ce7c
commit 18ad51fe76
5 changed files with 41 additions and 209 deletions

View File

@ -1,12 +1,12 @@
LDFLAGS=-lusb `pkg-config --libs libosmocore` -losmocore
LDFLAGS=`pkg-config --libs libusb-1.0` `pkg-config --libs libosmocore` -losmocore
all: simtrace
simtrace: main.o usb_helper.o usb.o apdu_split.o
simtrace: main.o apdu_split.o
$(CC) -o $@ $^ $(LDFLAGS)
%.o: %.c
$(CC) $(CFLAGS) `pkg-config --cflags libosmocore` -o $@ -c $^
$(CC) $(CFLAGS) `pkg-config --cflags libusb-1.0` `pkg-config --cflags libosmocore` -o $@ -c $^
install: simtrace
install -d $(DESTDIR)/usr/bin/

View File

@ -32,9 +32,8 @@
#include <netinet/in.h>
#include <arpa/inet.h>
#include <usb.h>
#include <libusb.h>
#include "usb_helper.h"
#include "simtrace.h"
#include "simtrace_usb.h"
#include "apdu_split.h"
@ -43,7 +42,7 @@
#include <osmocom/core/gsmtap_util.h>
#include <osmocom/core/utils.h>
static struct usb_dev_handle *udev;
static struct libusb_device_handle *devh;
static struct apdu_split *as;
static struct gsmtap_inst *g_gti;
@ -140,8 +139,9 @@ int main(int argc, char **argv)
{
char buf[16*265];
char *gsmtap_host = "127.0.0.1";
int rc, c;
int rc, c, ret = 1;
int skip_atr = 0;
int xfer_len;
unsigned int msg_count, byte_count = 0;
print_welcome();
@ -166,35 +166,56 @@ int main(int argc, char **argv)
}
}
rc = libusb_init(NULL);
if (rc < 0) {
fprintf(stderr, "libusb initialization failed\n");
goto close_exit;
}
g_gti = gsmtap_source_init(gsmtap_host, GSMTAP_UDP_PORT, 0);
if (!g_gti) {
perror("unable to open GSMTAP");
exit(1);
goto close_exit;
}
gsmtap_source_add_sink(g_gti);
udev = usb_find_open(SIMTRACE_USB_VENDOR, SIMTRACE_USB_PRODUCT);
if (!udev) {
perror("opening USB device");
exit(1);
devh = libusb_open_device_with_vid_pid(NULL, SIMTRACE_USB_VENDOR, SIMTRACE_USB_PRODUCT);
if (!devh) {
fprintf(stderr, "can't open USB device\n");
goto close_exit;
}
rc = libusb_claim_interface(devh, 0);
if (rc < 0) {
fprintf(stderr, "can't claim interface; rc=%d\n", rc);
goto close_exit;
}
as = apdu_split_init(&apdu_out_cb, NULL);
if (!as)
exit(1);
goto release_exit;
printf("Entering main loop\n");
while (1) {
rc = usb_bulk_read(udev, SIMTRACE_IN_EP, buf, sizeof(buf), 100000);
if (rc < 0 && rc != -EAGAIN) {
fprintf(stderr, "Error submitting BULK IN urb: %s\n", usb_strerror());
exit(1);
rc = libusb_bulk_transfer(devh, SIMTRACE_IN_EP, buf, sizeof(buf), &xfer_len, 100000);
if (rc < 0 && rc != LIBUSB_ERROR_TIMEOUT) {
fprintf(stderr, "BULK IN transfer error; rc=%d\n", rc);
goto release_exit;
}
if (rc > 0) {
if (xfer_len > 0) {
//printf("URB: %s\n", osmo_hexdump(buf, rc));
process_usb_msg(buf, rc);
process_usb_msg(buf, xfer_len);
msg_count++;
byte_count += rc;
byte_count += xfer_len;
}
}
ret = 0;
release_exit:
libusb_release_interface(devh, 0);
close_exit:
if (devh)
libusb_close(devh);
libusb_exit(NULL);
return ret;
}

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@ -1,87 +0,0 @@
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <usb.h>
#include <sys/ioctl.h>
#include "usb.h"
#include <linux/usbdevice_fs.h>
#define MAX_READ_WRITE 4096
#define USB_ERROR_STR(ret, x, args...) return ret
static int usb_get_fd(usb_dev_handle *uh)
{
return *((int *)uh);
}
int __usb_bulk_write(usb_dev_handle *dev, int ep, char *bytes, int length,
int timeout)
{
struct usbdevfs_bulktransfer bulk;
int ret, sent = 0;
/* Ensure the endpoint address is correct */
ep &= ~USB_ENDPOINT_IN;
do {
bulk.ep = ep;
bulk.len = length - sent;
if (bulk.len > MAX_READ_WRITE)
bulk.len = MAX_READ_WRITE;
bulk.timeout = timeout;
bulk.data = (unsigned char *)bytes + sent;
ret = ioctl(usb_get_fd(dev), USBDEVFS_BULK, &bulk);
if (ret < 0)
USB_ERROR_STR(ret,
"error writing to bulk endpoint %d: %s",
ep, strerror(errno));
sent += ret;
} while (ret > 0 && sent < length);
return sent;
}
int __usb_bulk_read(usb_dev_handle *dev, int ep, char *bytes, int size,
int timeout)
{
struct usbdevfs_bulktransfer bulk;
int ret, retrieved = 0, requested;
/* Ensure the endpoint address is correct */
ep |= USB_ENDPOINT_IN;
do {
bulk.ep = ep;
requested = size - retrieved;
if (requested > MAX_READ_WRITE)
requested = MAX_READ_WRITE;
bulk.len = requested;
bulk.timeout = timeout;
bulk.data = (unsigned char *)bytes + retrieved;
ret = ioctl(usb_get_fd(dev), USBDEVFS_BULK, &bulk);
if (ret < 0)
USB_ERROR_STR(ret,
"error reading from bulk endpoint 0x%x: %s",
ep, strerror(errno));
retrieved += ret;
} while (ret > 0 && retrieved < size && ret == requested);
return retrieved;
}
int __usb_reattach_kernel_driver_np(usb_dev_handle *dev, int interface)
{
struct usbdevfs_ioctl command;
command.ifno = interface;
command.ioctl_code = USBDEVFS_CONNECT;
command.data = NULL;
return ioctl(usb_get_fd(dev), USBDEVFS_IOCTL, &command);
}

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@ -1,76 +0,0 @@
/* usb_helper - Low-Level USB routines for SimTrace
*
* (C) 2006-2010 by Harald Welte <hwelte@hmw-consulting.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* 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 <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include <usb.h>
static struct usb_device *find_usb_device (uint16_t vendor_id, uint16_t product_id)
{
struct usb_bus *bus;
for (bus = usb_busses; bus; bus = bus->next) {
struct usb_device *dev;
for (dev = bus->devices; dev; dev = dev->next) {
if (dev->descriptor.idVendor == vendor_id &&
dev->descriptor.idProduct == product_id)
return dev;
}
}
return NULL;
}
struct usb_dev_handle *usb_find_open(uint16_t vendor_id, uint16_t product_id)
{
struct usb_device *dev;
struct usb_dev_handle *hdl;
usb_init();
usb_find_busses();
usb_find_devices();
dev = find_usb_device(vendor_id, product_id);
if (!dev) {
fprintf(stderr, "Cannot find matching USB Device. "
"Are you sure it is connected?\n");
exit(1);
}
hdl = usb_open(dev);
if (!hdl) {
fprintf(stderr, "Unable to open usb device: %s\n",
usb_strerror());
exit(1);
}
if (usb_claim_interface(hdl, 0) < 0) {
fprintf(stderr, "Unable to claim usb interface "
"1 of device: %s\n", usb_strerror());
exit(1);
}
return hdl;
}

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@ -1,26 +0,0 @@
#ifndef _USB_HELPER_H
#define _USB_HELPER_H
/* usb_helper - Low-Level USB routines for SimTrace
*
* (C) 2006-2010 by Harald Welte <hwelte@hmw-consulting.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* 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 <stdint.h>
struct usb_dev_handle *usb_find_open(uint16_t vendor_id, uint16_t product_id);
#endif