mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 01:41:39 +00:00
![Felipe Balbi](/assets/img/avatar_default.png)
Currently, default vary will not accomodate superspeed endpoints causing unexpected babble errors in the IN direction. Let's update default 'vary' parameter so that we can maintain a "short-less" transfer as hinted at the comment. Reported-by: Ammy Yi <ammy.yi@intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
539 lines
13 KiB
C
539 lines
13 KiB
C
/* $(CROSS_COMPILE)cc -Wall -Wextra -g -lpthread -o testusb testusb.c */
|
|
|
|
/*
|
|
* Copyright (c) 2002 by David Brownell
|
|
* Copyright (c) 2010 by Samsung Electronics
|
|
* Author: Michal Nazarewicz <mina86@mina86.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* This program issues ioctls to perform the tests implemented by the
|
|
* kernel driver. It can generate a variety of transfer patterns; you
|
|
* should make sure to test both regular streaming and mixes of
|
|
* transfer sizes (including short transfers).
|
|
*
|
|
* For more information on how this can be used and on USB testing
|
|
* refer to <URL:http://www.linux-usb.org/usbtest/>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <ftw.h>
|
|
#include <stdlib.h>
|
|
#include <pthread.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <limits.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> */
|
|
|
|
#define USB_DT_DEVICE 0x01
|
|
#define USB_DT_INTERFACE 0x04
|
|
|
|
#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
|
|
#define USB_CLASS_VENDOR_SPEC 0xff
|
|
|
|
|
|
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));
|
|
|
|
struct usb_interface_descriptor {
|
|
__u8 bLength;
|
|
__u8 bDescriptorType;
|
|
|
|
__u8 bInterfaceNumber;
|
|
__u8 bAlternateSetting;
|
|
__u8 bNumEndpoints;
|
|
__u8 bInterfaceClass;
|
|
__u8 bInterfaceSubClass;
|
|
__u8 bInterfaceProtocol;
|
|
__u8 iInterface;
|
|
} __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 testdev_ffs_ifnum(FILE *fd)
|
|
{
|
|
union {
|
|
char buf[255];
|
|
struct usb_interface_descriptor intf;
|
|
} u;
|
|
|
|
for (;;) {
|
|
if (fread(u.buf, 1, 1, fd) != 1)
|
|
return -1;
|
|
if (fread(u.buf + 1, (unsigned char)u.buf[0] - 1, 1, fd) != 1)
|
|
return -1;
|
|
|
|
if (u.intf.bLength == sizeof u.intf
|
|
&& u.intf.bDescriptorType == USB_DT_INTERFACE
|
|
&& u.intf.bNumEndpoints == 2
|
|
&& u.intf.bInterfaceClass == USB_CLASS_VENDOR_SPEC
|
|
&& u.intf.bInterfaceSubClass == 0
|
|
&& u.intf.bInterfaceProtocol == 0)
|
|
return (unsigned char)u.intf.bInterfaceNumber;
|
|
}
|
|
}
|
|
|
|
static int testdev_ifnum(FILE *fd)
|
|
{
|
|
struct usb_device_descriptor dev;
|
|
|
|
if (fread(&dev, sizeof dev, 1, fd) != 1)
|
|
return -1;
|
|
|
|
if (dev.bLength != sizeof dev || dev.bDescriptorType != USB_DT_DEVICE)
|
|
return -1;
|
|
|
|
/* FX2 with (tweaked) bulksrc firmware */
|
|
if (dev.idVendor == 0x0547 && dev.idProduct == 0x1002)
|
|
return 0;
|
|
|
|
/*----------------------------------------------------*/
|
|
|
|
/* 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 0;
|
|
|
|
/* generic EZ-USB FX2 controller */
|
|
if (dev.idVendor == 0x04b4 && dev.idProduct == 0x8613)
|
|
return 0;
|
|
|
|
/* CY3671 development board with EZ-USB FX */
|
|
if (dev.idVendor == 0x0547 && dev.idProduct == 0x0080)
|
|
return 0;
|
|
|
|
/* Keyspan 19Qi uses an21xx (original EZ-USB) */
|
|
if (dev.idVendor == 0x06cd && dev.idProduct == 0x010b)
|
|
return 0;
|
|
|
|
/*----------------------------------------------------*/
|
|
|
|
/* "gadget zero", Linux-USB test software */
|
|
if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a0)
|
|
return 0;
|
|
|
|
/* user mode subset of that */
|
|
if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a4)
|
|
return testdev_ffs_ifnum(fd);
|
|
/* return 0; */
|
|
|
|
/* iso version of usermode code */
|
|
if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a3)
|
|
return 0;
|
|
|
|
/* some GPL'd test firmware uses these IDs */
|
|
|
|
if (dev.idVendor == 0xfff0 && dev.idProduct == 0xfff0)
|
|
return 0;
|
|
|
|
/*----------------------------------------------------*/
|
|
|
|
/* iBOT2 high speed webcam */
|
|
if (dev.idVendor == 0x0b62 && dev.idProduct == 0x0059)
|
|
return 0;
|
|
|
|
/*----------------------------------------------------*/
|
|
|
|
/* the FunctionFS gadget can have the source/sink interface
|
|
* anywhere. We look for an interface descriptor that match
|
|
* what we expect. We ignore configuratiens thou. */
|
|
|
|
if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4ac
|
|
&& (dev.bDeviceClass == USB_CLASS_PER_INTERFACE
|
|
|| dev.bDeviceClass == USB_CLASS_VENDOR_SPEC))
|
|
return testdev_ffs_ifnum(fd);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int find_testdev(const char *name, const struct stat *sb, int flag)
|
|
{
|
|
FILE *fd;
|
|
int ifnum;
|
|
struct testdev *entry;
|
|
|
|
(void)sb; /* unused */
|
|
|
|
if (flag != FTW_F)
|
|
return 0;
|
|
|
|
fd = fopen(name, "rb");
|
|
if (!fd) {
|
|
perror(name);
|
|
return 0;
|
|
}
|
|
|
|
ifnum = testdev_ifnum(fd);
|
|
fclose(fd);
|
|
if (ifnum < 0)
|
|
return 0;
|
|
|
|
entry = calloc(1, sizeof *entry);
|
|
if (!entry)
|
|
goto nomem;
|
|
|
|
entry->name = strdup(name);
|
|
if (!entry->name) {
|
|
free(entry);
|
|
nomem:
|
|
perror("malloc");
|
|
return 0;
|
|
}
|
|
|
|
entry->ifnum = ifnum;
|
|
|
|
/* FIXME update USBDEVFS_CONNECTINFO so it tells about high speed etc */
|
|
|
|
fprintf(stderr, "%s speed\t%s\t%u\n",
|
|
speed(entry->speed), entry->name, entry->ifnum);
|
|
|
|
entry->next = testdevs;
|
|
testdevs = entry;
|
|
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;
|
|
}
|
|
|
|
static const char *usb_dir_find(void)
|
|
{
|
|
static char udev_usb_path[] = "/dev/bus/usb";
|
|
|
|
if (access(udev_usb_path, F_OK) == 0)
|
|
return udev_usb_path;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int parse_num(unsigned *num, const char *str)
|
|
{
|
|
unsigned long val;
|
|
char *end;
|
|
|
|
errno = 0;
|
|
val = strtoul(str, &end, 0);
|
|
if (errno || *end || val > UINT_MAX)
|
|
return -1;
|
|
*num = val;
|
|
return 0;
|
|
}
|
|
|
|
int main (int argc, char **argv)
|
|
{
|
|
|
|
int c;
|
|
struct testdev *entry;
|
|
char *device;
|
|
const char *usb_dir = NULL;
|
|
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:
|
|
* super speed,bulk 1024 * 16 * 8 = 131072
|
|
* interrupt 1024 * 3 * 8 = 24576
|
|
* 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 = 1024;
|
|
param.vary = 1024;
|
|
param.sglen = 32;
|
|
|
|
/* for easy use when hotplugging */
|
|
device = getenv ("DEVICE");
|
|
|
|
while ((c = getopt (argc, argv, "D:aA:c:g:hlns:t:v:")) != EOF)
|
|
switch (c) {
|
|
case 'D': /* device, if only one */
|
|
device = optarg;
|
|
continue;
|
|
case 'A': /* use all devices with specified USB dir */
|
|
usb_dir = optarg;
|
|
/* FALL THROUGH */
|
|
case 'a': /* use all devices */
|
|
device = NULL;
|
|
all = 1;
|
|
continue;
|
|
case 'c': /* count iterations */
|
|
if (parse_num(¶m.iterations, optarg))
|
|
goto usage;
|
|
continue;
|
|
case 'g': /* scatter/gather entries */
|
|
if (parse_num(¶m.sglen, optarg))
|
|
goto usage;
|
|
continue;
|
|
case 'l': /* loop forever */
|
|
forever = 1;
|
|
continue;
|
|
case 'n': /* no test running! */
|
|
not = 1;
|
|
continue;
|
|
case 's': /* size of packet */
|
|
if (parse_num(¶m.length, optarg))
|
|
goto usage;
|
|
continue;
|
|
case 't': /* run just one test */
|
|
test = atoi (optarg);
|
|
if (test < 0)
|
|
goto usage;
|
|
continue;
|
|
case 'v': /* vary packet size by ... */
|
|
if (parse_num(¶m.vary, optarg))
|
|
goto usage;
|
|
continue;
|
|
case '?':
|
|
case 'h':
|
|
default:
|
|
usage:
|
|
fprintf (stderr,
|
|
"usage: %s [options]\n"
|
|
"Options:\n"
|
|
"\t-D dev only test specific device\n"
|
|
"\t-A usb-dir\n"
|
|
"\t-a test all recognized devices\n"
|
|
"\t-l loop forever(for stress test)\n"
|
|
"\t-t testnum only run specified case\n"
|
|
"\t-n no test running, show devices to be tested\n"
|
|
"Case arguments:\n"
|
|
"\t-c iterations default 1000\n"
|
|
"\t-s transfer length default 1024\n"
|
|
"\t-g sglen default 32\n"
|
|
"\t-v vary default 1024\n",
|
|
argv[0]);
|
|
return 1;
|
|
}
|
|
if (optind != argc)
|
|
goto usage;
|
|
if (!all && !device) {
|
|
fprintf (stderr, "must specify '-a' or '-D dev', "
|
|
"or DEVICE=/dev/bus/usb/BBB/DDD in env\n");
|
|
goto usage;
|
|
}
|
|
|
|
/* Find usb device subdirectory */
|
|
if (!usb_dir) {
|
|
usb_dir = usb_dir_find();
|
|
if (!usb_dir) {
|
|
fputs ("USB device files are missing\n", stderr);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* collect and list the test devices */
|
|
if (ftw (usb_dir, find_testdev, 3) != 0) {
|
|
fputs ("ftw failed; are USB device files 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");
|
|
}
|
|
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;
|
|
}
|