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-rw-r--r--tools/usb/testusb.c427
1 files changed, 427 insertions, 0 deletions
diff --git a/tools/usb/testusb.c b/tools/usb/testusb.c
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+/* $(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;
+}
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