/* $(CROSS_COMPILE)cc -Wall -g -lpthread -o testusb testusb.c */
/*
* Copyright (c) 2002 by David Brownell
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <string.h>
#include <ftw.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/usbdevice_fs.h>
/*-------------------------------------------------------------------------*/
#define TEST_CASES 30
// FIXME make these public somewhere; usbdevfs.h?
struct usbtest_param {
// inputs
unsigned test_num; /* 0..(TEST_CASES-1) */
unsigned iterations;
unsigned length;
unsigned vary;
unsigned sglen;
// outputs
struct timeval duration;
};
#define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
/*-------------------------------------------------------------------------*/
/* #include <linux/usb_ch9.h> */
struct usb_device_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u16 bcdUSB;
__u8 bDeviceClass;
__u8 bDeviceSubClass;
__u8 bDeviceProtocol;
__u8 bMaxPacketSize0;
__u16 idVendor;
__u16 idProduct;
__u16 bcdDevice;
__u8 iManufacturer;
__u8 iProduct;
__u8 iSerialNumber;
__u8 bNumConfigurations;
} __attribute__ ((packed));
enum usb_device_speed {
USB_SPEED_UNKNOWN = 0, /* enumerating */
USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */
USB_SPEED_HIGH /* usb 2.0 */
};
/*-------------------------------------------------------------------------*/
static char *speed (enum usb_device_speed s)
{
switch (s) {
case USB_SPEED_UNKNOWN: return "unknown";
case USB_SPEED_LOW: return "low";
case USB_SPEED_FULL: return "full";
case USB_SPEED_HIGH: return "high";
default: return "??";
}
}
struct testdev {
struct testdev *next;
char *name;
pthread_t thread;
enum usb_device_speed speed;
unsigned ifnum : 8;
unsigned forever : 1;
int test;
struct usbtest_param param;
};
static struct testdev *testdevs;
static int is_testdev (struct usb_device_descriptor *dev)
{
/* FX2 with (tweaked) bulksrc firmware */
if (dev->idVendor == 0x0547 && dev->idProduct == 0x1002)
return 1;
/*----------------------------------------------------*/
/* devices that start up using the EZ-USB default device and
* which we can use after loading simple firmware. hotplug
* can fxload it, and then run this test driver.
*
* we return false positives in two cases:
* - the device has a "real" driver (maybe usb-serial) that
* renumerates. the device should vanish quickly.
* - the device doesn't have the test firmware installed.
*/
/* generic EZ-USB FX controller */
if (dev->idVendor == 0x0547 && dev->idProduct == 0x2235)
return 1;
/* generic EZ-USB FX2 controller */
if (dev->idVendor == 0x04b4 && dev->idProduct == 0x8613)
return 1;
/* CY3671 development board with EZ-USB FX */
if (dev->idVendor == 0x0547 && dev->idProduct == 0x0080)
return 1;
/* Keyspan 19Qi uses an21xx (original EZ-USB) */
if (dev->idVendor == 0x06cd && dev->idProduct == 0x010b)
return 1;
/*----------------------------------------------------*/
/* "gadget zero", Linux-USB test software */
if (dev->idVendor == 0x0525 && dev->idProduct == 0xa4a0)
return 1;
/* user mode subset of that */
if (dev->idVendor == 0x0525 && dev->idProduct == 0xa4a4)
return 1;
/* iso version of usermode code */
if (dev->idVendor == 0x0525 && dev->idProduct == 0xa4a3)
return 1;
/* some GPL'd test firmware uses these IDs */
if (dev->idVendor == 0xfff0 && dev->idProduct == 0xfff0)
return 1;
/*----------------------------------------------------*/
/* iBOT2 high speed webcam */
if (dev->idVendor == 0x0b62 && dev->idProduct == 0x0059)
return 1;
return 0;
}
static int find_testdev (const char *name, const struct stat *sb, int flag)
{
int fd;
struct usb_device_descriptor dev;
if (flag != FTW_F)
return 0;
/* ignore /proc/bus/usb/{devices,drivers} */
if (strrchr (name, '/')[1] == 'd')
return 0;
if ((fd = open (name, O_RDONLY)) < 0) {
perror ("can't open dev file r/o");
return 0;
}
if (read (fd, &dev, sizeof dev) != sizeof dev)
fputs ("short devfile read!\n", stderr);
else if (is_testdev (&dev)) {
struct testdev *entry;
if ((entry = calloc (1, sizeof *entry)) == 0) {
fputs ("no mem!\n", stderr);
goto done;
}
entry->name = strdup (name);
if (!entry->name) {
free (entry);
goto done;
}
// FIXME better to look at each interface and ask if it's
// bound to 'usbtest', rather than assume interface 0
entry->ifnum = 0;
// FIXME ask usbfs what speed; update USBDEVFS_CONNECTINFO
// so it tells about high speed etc
fprintf (stderr, "%s speed\t%s\n",
speed (entry->speed), entry->name);
entry->next = testdevs;
testdevs = entry;
}
done:
close (fd);
return 0;
}
static int
usbdev_ioctl (int fd, int ifno, unsigned request, void *param)
{
struct usbdevfs_ioctl wrapper;
wrapper.ifno = ifno;
wrapper.ioctl_code = request;
wrapper.data = param;
return ioctl (fd, USBDEVFS_IOCTL, &wrapper);
}
static void *handle_testdev (void *arg)
{
struct testdev *dev = arg;
int fd, i;
int status;
if ((fd = open (dev->name, O_RDWR)) < 0) {
perror ("can't open dev file r/w");
return 0;
}
restart:
for (i = 0; i < TEST_CASES; i++) {
if (dev->test != -1 && dev->test != i)
continue;
dev->param.test_num = i;
status = usbdev_ioctl (fd, dev->ifnum,
USBTEST_REQUEST, &dev->param);
if (status < 0 && errno == EOPNOTSUPP)
continue;
/* FIXME need a "syslog it" option for background testing */
/* NOTE: each thread emits complete lines; no fragments! */
if (status < 0) {
char buf [80];
int err = errno;
if (strerror_r (errno, buf, sizeof buf)) {
snprintf (buf, sizeof buf, "error %d", err);
errno = err;
}
printf ("%s test %d --> %d (%s)\n",
dev->name, i, errno, buf);
} else
printf ("%s test %d, %4d.%.06d secs\n", dev->name, i,
(int) dev->param.duration.tv_sec,
(int) dev->param.duration.tv_usec);
fflush (stdout);
}
if (dev->forever)
goto restart;
close (fd);
return arg;
}
int main (int argc, char **argv)
{
int c;
struct testdev *entry;
char *device;
int all = 0, forever = 0, not = 0;
int test = -1 /* all */;
struct usbtest_param param;
/* pick defaults that works with all speeds, without short packets.
*
* Best per-frame data rates:
* high speed, bulk 512 * 13 * 8 = 53248
* interrupt 1024 * 3 * 8 = 24576
* full speed, bulk/intr 64 * 19 = 1216
* interrupt 64 * 1 = 64
* low speed, interrupt 8 * 1 = 8
*/
param.iterations = 1000;
param.length = 512;
param.vary = 512;
param.sglen = 32;
/* for easy use when hotplugging */
device = getenv ("DEVICE");
while ((c = getopt (argc, argv, "D:ac:g:hns:t:v:")) != EOF)
switch (c) {
case 'D': /* device, if only one */
device = optarg;
continue;
case 'a': /* use all devices */
device = 0;
all = 1;
continue;
case 'c': /* count iterations */
param.iterations = atoi (optarg);
if (param.iterations < 0)
goto usage;
continue;
case 'g': /* scatter/gather entries */
param.sglen = atoi (optarg);
if (param.sglen < 0)
goto usage;
continue;
case 'l': /* loop forever */
forever = 1;
continue;
case 'n': /* no test running! */
not = 1;
continue;
case 's': /* size of packet */
param.length = atoi (optarg);
if (param.length < 0)
goto usage;
continue;
case 't': /* run just one test */
test = atoi (optarg);
if (test < 0)
goto usage;
continue;
case 'v': /* vary packet size by ... */
param.vary = atoi (optarg);
if (param.vary < 0)
goto usage;
continue;
case '?':
case 'h':
default:
usage:
fprintf (stderr, "usage: %s [-an] [-D dev]\n"
"\t[-c iterations] [-t testnum]\n"
"\t[-s packetsize] [-g sglen] [-v vary]\n",
argv [0]);
return 1;
}
if (optind != argc)
goto usage;
if (!all && !device) {
fprintf (stderr, "must specify '-a' or '-D dev', "
"or DEVICE=/proc/bus/usb/BBB/DDD in env\n");
goto usage;
}
if ((c = open ("/proc/bus/usb/devices", O_RDONLY)) < 0) {
fputs ("usbfs files are missing\n", stderr);
return -1;
}
/* collect and list the test devices */
if (ftw ("/proc/bus/usb", find_testdev, 3) != 0) {
fputs ("ftw failed; is usbfs missing?\n", stderr);
return -1;
}
/* quit, run single test, or create test threads */
if (!testdevs && !device) {
fputs ("no test devices recognized\n", stderr);
return -1;
}
if (not)
return 0;
if (testdevs && testdevs->next == 0 && !device)
device = testdevs->name;
for (entry = testdevs; entry; entry = entry->next) {
int status;
entry->param = param;
entry->forever = forever;
entry->test = test;
if (device) {
if (strcmp (entry->name, device))
continue;
return handle_testdev (entry) != entry;
}
status = pthread_create (&entry->thread, 0, handle_testdev, entry);
if (status) {
perror ("pthread_create");
continue;
}
}
if (device) {
struct testdev dev;
/* kernel can recognize test devices we don't */
fprintf (stderr, "%s: %s may see only control tests\n",
argv [0], device);
memset (&dev, 0, sizeof dev);
dev.name = device;
dev.param = param;
dev.forever = forever;
dev.test = test;
return handle_testdev (&dev) != &dev;
}
/* wait for tests to complete */
for (entry = testdevs; entry; entry = entry->next) {
void *retval;
if (pthread_join (entry->thread, &retval))
perror ("pthread_join");
/* testing errors discarded! */
}
return 0;
}
