aboutsummaryrefslogtreecommitdiff
path: root/tools
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 21:26:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 21:26:12 -0700
commit7a9b149212f3716c598afe973b6261fd58453b7a (patch)
tree477716d84c71da124448b72278e98da28aadbd3d /tools
parent3d62e3fdce8ef265a3706c52ae1ca6ab84e30f0e (diff)
parente26bcf37234c67624f62d9fc95f922b8dbda1363 (diff)
downloadlinux-2.6.34-ux500-7a9b149212f3716c598afe973b6261fd58453b7a.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (229 commits) USB: remove unused usb_buffer_alloc and usb_buffer_free macros usb: musb: update gfp/slab.h includes USB: ftdi_sio: fix legacy SIO-device header USB: kl5usb105: reimplement using generic framework USB: kl5usb105: minor clean ups USB: kl5usb105: fix memory leak USB: io_ti: use kfifo to implement write buffering USB: io_ti: remove unsused private counter USB: ti_usb: use kfifo to implement write buffering USB: ir-usb: fix incorrect write-buffer length USB: aircable: fix incorrect write-buffer length USB: safe_serial: straighten out read processing USB: safe_serial: reimplement read using generic framework USB: safe_serial: reimplement write using generic framework usb-storage: always print quirks USB: usb-storage: trivial debug improvements USB: oti6858: use port write fifo USB: oti6858: use kfifo to implement write buffering USB: cypress_m8: use kfifo to implement write buffering USB: cypress_m8: remove unused drain define ... Fix up conflicts (due to usb_buffer_alloc/free renaming) in drivers/input/tablet/acecad.c drivers/input/tablet/kbtab.c drivers/input/tablet/wacom_sys.c drivers/media/video/gspca/gspca.c sound/usb/usbaudio.c
Diffstat (limited to 'tools')
-rw-r--r--tools/usb/ffs-test.c554
-rw-r--r--tools/usb/testusb.c547
2 files changed, 1101 insertions, 0 deletions
diff --git a/tools/usb/ffs-test.c b/tools/usb/ffs-test.c
new file mode 100644
index 00000000000..bbe2e3a2ea6
--- /dev/null
+++ b/tools/usb/ffs-test.c
@@ -0,0 +1,554 @@
+/*
+ * ffs-test.c.c -- user mode filesystem api for usb composite function
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ * Author: Michal Nazarewicz <m.nazarewicz@samsung.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* $(CROSS_COMPILE)cc -Wall -Wextra -g -o ffs-test ffs-test.c -lpthread */
+
+
+#define _BSD_SOURCE /* for endian.h */
+
+#include <endian.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <linux/usb/functionfs.h>
+
+
+/******************** Little Endian Handling ********************************/
+
+#define cpu_to_le16(x) htole16(x)
+#define cpu_to_le32(x) htole32(x)
+#define le32_to_cpu(x) le32toh(x)
+#define le16_to_cpu(x) le16toh(x)
+
+static inline __u16 get_unaligned_le16(const void *_ptr)
+{
+ const __u8 *ptr = _ptr;
+ return ptr[0] | (ptr[1] << 8);
+}
+
+static inline __u32 get_unaligned_le32(const void *_ptr)
+{
+ const __u8 *ptr = _ptr;
+ return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16) | (ptr[3] << 24);
+}
+
+static inline void put_unaligned_le16(__u16 val, void *_ptr)
+{
+ __u8 *ptr = _ptr;
+ *ptr++ = val;
+ *ptr++ = val >> 8;
+}
+
+static inline void put_unaligned_le32(__u32 val, void *_ptr)
+{
+ __u8 *ptr = _ptr;
+ *ptr++ = val;
+ *ptr++ = val >> 8;
+ *ptr++ = val >> 16;
+ *ptr++ = val >> 24;
+}
+
+
+/******************** Messages and Errors ***********************************/
+
+static const char argv0[] = "ffs-test";
+
+static unsigned verbosity = 7;
+
+static void _msg(unsigned level, const char *fmt, ...)
+{
+ if (level < 2)
+ level = 2;
+ else if (level > 7)
+ level = 7;
+
+ if (level <= verbosity) {
+ static const char levels[8][6] = {
+ [2] = "crit:",
+ [3] = "err: ",
+ [4] = "warn:",
+ [5] = "note:",
+ [6] = "info:",
+ [7] = "dbg: "
+ };
+
+ int _errno = errno;
+ va_list ap;
+
+ fprintf(stderr, "%s: %s ", argv0, levels[level]);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+
+ if (fmt[strlen(fmt) - 1] != '\n') {
+ char buffer[128];
+ strerror_r(_errno, buffer, sizeof buffer);
+ fprintf(stderr, ": (-%d) %s\n", _errno, buffer);
+ }
+
+ fflush(stderr);
+ }
+}
+
+#define die(...) (_msg(2, __VA_ARGS__), exit(1))
+#define err(...) _msg(3, __VA_ARGS__)
+#define warn(...) _msg(4, __VA_ARGS__)
+#define note(...) _msg(5, __VA_ARGS__)
+#define info(...) _msg(6, __VA_ARGS__)
+#define debug(...) _msg(7, __VA_ARGS__)
+
+#define die_on(cond, ...) do { \
+ if (cond) \
+ die(__VA_ARGS__); \
+ } while (0)
+
+
+/******************** Descriptors and Strings *******************************/
+
+static const struct {
+ struct usb_functionfs_descs_head header;
+ struct {
+ struct usb_interface_descriptor intf;
+ struct usb_endpoint_descriptor_no_audio sink;
+ struct usb_endpoint_descriptor_no_audio source;
+ } __attribute__((packed)) fs_descs, hs_descs;
+} __attribute__((packed)) descriptors = {
+ .header = {
+ .magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC),
+ .length = cpu_to_le32(sizeof descriptors),
+ .fs_count = 3,
+ .hs_count = 3,
+ },
+ .fs_descs = {
+ .intf = {
+ .bLength = sizeof descriptors.fs_descs.intf,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bNumEndpoints = 2,
+ .bInterfaceClass = USB_CLASS_VENDOR_SPEC,
+ .iInterface = 1,
+ },
+ .sink = {
+ .bLength = sizeof descriptors.fs_descs.sink,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 1 | USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ /* .wMaxPacketSize = autoconfiguration (kernel) */
+ },
+ .source = {
+ .bLength = sizeof descriptors.fs_descs.source,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 2 | USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ /* .wMaxPacketSize = autoconfiguration (kernel) */
+ },
+ },
+ .hs_descs = {
+ .intf = {
+ .bLength = sizeof descriptors.fs_descs.intf,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bNumEndpoints = 2,
+ .bInterfaceClass = USB_CLASS_VENDOR_SPEC,
+ .iInterface = 1,
+ },
+ .sink = {
+ .bLength = sizeof descriptors.hs_descs.sink,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 1 | USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = cpu_to_le16(512),
+ },
+ .source = {
+ .bLength = sizeof descriptors.hs_descs.source,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 2 | USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = cpu_to_le16(512),
+ .bInterval = 1, /* NAK every 1 uframe */
+ },
+ },
+};
+
+
+#define STR_INTERFACE_ "Source/Sink"
+
+static const struct {
+ struct usb_functionfs_strings_head header;
+ struct {
+ __le16 code;
+ const char str1[sizeof STR_INTERFACE_];
+ } __attribute__((packed)) lang0;
+} __attribute__((packed)) strings = {
+ .header = {
+ .magic = cpu_to_le32(FUNCTIONFS_STRINGS_MAGIC),
+ .length = cpu_to_le32(sizeof strings),
+ .str_count = cpu_to_le32(1),
+ .lang_count = cpu_to_le32(1),
+ },
+ .lang0 = {
+ cpu_to_le16(0x0409), /* en-us */
+ STR_INTERFACE_,
+ },
+};
+
+#define STR_INTERFACE strings.lang0.str1
+
+
+/******************** Files and Threads Handling ****************************/
+
+struct thread;
+
+static ssize_t read_wrap(struct thread *t, void *buf, size_t nbytes);
+static ssize_t write_wrap(struct thread *t, const void *buf, size_t nbytes);
+static ssize_t ep0_consume(struct thread *t, const void *buf, size_t nbytes);
+static ssize_t fill_in_buf(struct thread *t, void *buf, size_t nbytes);
+static ssize_t empty_out_buf(struct thread *t, const void *buf, size_t nbytes);
+
+
+static struct thread {
+ const char *const filename;
+ size_t buf_size;
+
+ ssize_t (*in)(struct thread *, void *, size_t);
+ const char *const in_name;
+
+ ssize_t (*out)(struct thread *, const void *, size_t);
+ const char *const out_name;
+
+ int fd;
+ pthread_t id;
+ void *buf;
+ ssize_t status;
+} threads[] = {
+ {
+ "ep0", 4 * sizeof(struct usb_functionfs_event),
+ read_wrap, NULL,
+ ep0_consume, "<consume>",
+ 0, 0, NULL, 0
+ },
+ {
+ "ep1", 8 * 1024,
+ fill_in_buf, "<in>",
+ write_wrap, NULL,
+ 0, 0, NULL, 0
+ },
+ {
+ "ep2", 8 * 1024,
+ read_wrap, NULL,
+ empty_out_buf, "<out>",
+ 0, 0, NULL, 0
+ },
+};
+
+
+static void init_thread(struct thread *t)
+{
+ t->buf = malloc(t->buf_size);
+ die_on(!t->buf, "malloc");
+
+ t->fd = open(t->filename, O_RDWR);
+ die_on(t->fd < 0, "%s", t->filename);
+}
+
+static void cleanup_thread(void *arg)
+{
+ struct thread *t = arg;
+ int ret, fd;
+
+ fd = t->fd;
+ if (t->fd < 0)
+ return;
+ t->fd = -1;
+
+ /* test the FIFO ioctls (non-ep0 code paths) */
+ if (t != threads) {
+ ret = ioctl(fd, FUNCTIONFS_FIFO_STATUS);
+ if (ret < 0) {
+ /* ENODEV reported after disconnect */
+ if (errno != ENODEV)
+ err("%s: get fifo status", t->filename);
+ } else if (ret) {
+ warn("%s: unclaimed = %d\n", t->filename, ret);
+ if (ioctl(fd, FUNCTIONFS_FIFO_FLUSH) < 0)
+ err("%s: fifo flush", t->filename);
+ }
+ }
+
+ if (close(fd) < 0)
+ err("%s: close", t->filename);
+
+ free(t->buf);
+ t->buf = NULL;
+}
+
+static void *start_thread_helper(void *arg)
+{
+ const char *name, *op, *in_name, *out_name;
+ struct thread *t = arg;
+ ssize_t ret;
+
+ info("%s: starts\n", t->filename);
+ in_name = t->in_name ? t->in_name : t->filename;
+ out_name = t->out_name ? t->out_name : t->filename;
+
+ pthread_cleanup_push(cleanup_thread, arg);
+
+ for (;;) {
+ pthread_testcancel();
+
+ ret = t->in(t, t->buf, t->buf_size);
+ if (ret > 0) {
+ ret = t->out(t, t->buf, t->buf_size);
+ name = out_name;
+ op = "write";
+ } else {
+ name = in_name;
+ op = "read";
+ }
+
+ if (ret > 0) {
+ /* nop */
+ } else if (!ret) {
+ debug("%s: %s: EOF", name, op);
+ break;
+ } else if (errno == EINTR || errno == EAGAIN) {
+ debug("%s: %s", name, op);
+ } else {
+ warn("%s: %s", name, op);
+ break;
+ }
+ }
+
+ pthread_cleanup_pop(1);
+
+ t->status = ret;
+ info("%s: ends\n", t->filename);
+ return NULL;
+}
+
+static void start_thread(struct thread *t)
+{
+ debug("%s: starting\n", t->filename);
+
+ die_on(pthread_create(&t->id, NULL, start_thread_helper, t) < 0,
+ "pthread_create(%s)", t->filename);
+}
+
+static void join_thread(struct thread *t)
+{
+ int ret = pthread_join(t->id, NULL);
+
+ if (ret < 0)
+ err("%s: joining thread", t->filename);
+ else
+ debug("%s: joined\n", t->filename);
+}
+
+
+static ssize_t read_wrap(struct thread *t, void *buf, size_t nbytes)
+{
+ return read(t->fd, buf, nbytes);
+}
+
+static ssize_t write_wrap(struct thread *t, const void *buf, size_t nbytes)
+{
+ return write(t->fd, buf, nbytes);
+}
+
+
+/******************** Empty/Fill buffer routines ****************************/
+
+/* 0 -- stream of zeros, 1 -- i % 63, 2 -- pipe */
+enum pattern { PAT_ZERO, PAT_SEQ, PAT_PIPE };
+static enum pattern pattern;
+
+static ssize_t
+fill_in_buf(struct thread *ignore, void *buf, size_t nbytes)
+{
+ size_t i;
+ __u8 *p;
+
+ (void)ignore;
+
+ switch (pattern) {
+ case PAT_ZERO:
+ memset(buf, 0, nbytes);
+ break;
+
+ case PAT_SEQ:
+ for (p = buf, i = 0; i < nbytes; ++i, ++p)
+ *p = i % 63;
+ break;
+
+ case PAT_PIPE:
+ return fread(buf, 1, nbytes, stdin);
+ }
+
+ return nbytes;
+}
+
+static ssize_t
+empty_out_buf(struct thread *ignore, const void *buf, size_t nbytes)
+{
+ const __u8 *p;
+ __u8 expected;
+ ssize_t ret;
+ size_t len;
+
+ (void)ignore;
+
+ switch (pattern) {
+ case PAT_ZERO:
+ expected = 0;
+ for (p = buf, len = 0; len < nbytes; ++p, ++len)
+ if (*p)
+ goto invalid;
+ break;
+
+ case PAT_SEQ:
+ for (p = buf, len = 0; len < nbytes; ++p, ++len)
+ if (*p != len % 63) {
+ expected = len % 63;
+ goto invalid;
+ }
+ break;
+
+ case PAT_PIPE:
+ ret = fwrite(buf, nbytes, 1, stdout);
+ if (ret > 0)
+ fflush(stdout);
+ break;
+
+invalid:
+ err("bad OUT byte %zd, expected %02x got %02x\n",
+ len, expected, *p);
+ for (p = buf, len = 0; len < nbytes; ++p, ++len) {
+ if (0 == (len % 32))
+ fprintf(stderr, "%4d:", len);
+ fprintf(stderr, " %02x", *p);
+ if (31 == (len % 32))
+ fprintf(stderr, "\n");
+ }
+ fflush(stderr);
+ errno = EILSEQ;
+ return -1;
+ }
+
+ return len;
+}
+
+
+/******************** Endpoints routines ************************************/
+
+static void handle_setup(const struct usb_ctrlrequest *setup)
+{
+ printf("bRequestType = %d\n", setup->bRequestType);
+ printf("bRequest = %d\n", setup->bRequest);
+ printf("wValue = %d\n", le16_to_cpu(setup->wValue));
+ printf("wIndex = %d\n", le16_to_cpu(setup->wIndex));
+ printf("wLength = %d\n", le16_to_cpu(setup->wLength));
+}
+
+static ssize_t
+ep0_consume(struct thread *ignore, const void *buf, size_t nbytes)
+{
+ static const char *const names[] = {
+ [FUNCTIONFS_BIND] = "BIND",
+ [FUNCTIONFS_UNBIND] = "UNBIND",
+ [FUNCTIONFS_ENABLE] = "ENABLE",
+ [FUNCTIONFS_DISABLE] = "DISABLE",
+ [FUNCTIONFS_SETUP] = "SETUP",
+ [FUNCTIONFS_SUSPEND] = "SUSPEND",
+ [FUNCTIONFS_RESUME] = "RESUME",
+ };
+
+ const struct usb_functionfs_event *event = buf;
+ size_t n;
+
+ (void)ignore;
+
+ for (n = nbytes / sizeof *event; n; --n, ++event)
+ switch (event->type) {
+ case FUNCTIONFS_BIND:
+ case FUNCTIONFS_UNBIND:
+ case FUNCTIONFS_ENABLE:
+ case FUNCTIONFS_DISABLE:
+ case FUNCTIONFS_SETUP:
+ case FUNCTIONFS_SUSPEND:
+ case FUNCTIONFS_RESUME:
+ printf("Event %s\n", names[event->type]);
+ if (event->type == FUNCTIONFS_SETUP)
+ handle_setup(&event->u.setup);
+ break;
+
+ default:
+ printf("Event %03u (unknown)\n", event->type);
+ }
+
+ return nbytes;
+}
+
+static void ep0_init(struct thread *t)
+{
+ ssize_t ret;
+
+ info("%s: writing descriptors\n", t->filename);
+ ret = write(t->fd, &descriptors, sizeof descriptors);
+ die_on(ret < 0, "%s: write: descriptors", t->filename);
+
+ info("%s: writing strings\n", t->filename);
+ ret = write(t->fd, &strings, sizeof strings);
+ die_on(ret < 0, "%s: write: strings", t->filename);
+}
+
+
+/******************** Main **************************************************/
+
+int main(void)
+{
+ unsigned i;
+
+ /* XXX TODO: Argument parsing missing */
+
+ init_thread(threads);
+ ep0_init(threads);
+
+ for (i = 1; i < sizeof threads / sizeof *threads; ++i)
+ init_thread(threads + i);
+
+ for (i = 1; i < sizeof threads / sizeof *threads; ++i)
+ start_thread(threads + i);
+
+ start_thread_helper(threads);
+
+ for (i = 1; i < sizeof threads / sizeof *threads; ++i)
+ join_thread(threads + i);
+
+ return 0;
+}
diff --git a/tools/usb/testusb.c b/tools/usb/testusb.c
new file mode 100644
index 00000000000..f08e8946384
--- /dev/null
+++ b/tools/usb/testusb.c
@@ -0,0 +1,547 @@
+/* $(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 <m.nazarewicz@samsung.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;
+ /* ignore /proc/bus/usb/{devices,drivers} */
+ if (strrchr(name, '/')[1] == 'd')
+ 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 ask usbfs what speed; 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 *usbfs_dir_find(void)
+{
+ static char usbfs_path_0[] = "/dev/usb/devices";
+ static char usbfs_path_1[] = "/proc/bus/usb/devices";
+
+ static char *const usbfs_paths[] = {
+ usbfs_path_0, usbfs_path_1
+ };
+
+ static char *const *
+ end = usbfs_paths + sizeof usbfs_paths / sizeof *usbfs_paths;
+
+ char *const *it = usbfs_paths;
+ do {
+ int fd = open(*it, O_RDONLY);
+ close(fd);
+ if (fd >= 0) {
+ strrchr(*it, '/')[0] = '\0';
+ return *it;
+ }
+ } while (++it != end);
+
+ 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 *usbfs_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:
+ * 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:aA:c:g:hns:t:v:")) != EOF)
+ switch (c) {
+ case 'D': /* device, if only one */
+ device = optarg;
+ continue;
+ case 'A': /* use all devices with specified usbfs dir */
+ usbfs_dir = optarg;
+ /* FALL THROUGH */
+ case 'a': /* use all devices */
+ device = NULL;
+ all = 1;
+ continue;
+ case 'c': /* count iterations */
+ if (parse_num(&param.iterations, optarg))
+ goto usage;
+ continue;
+ case 'g': /* scatter/gather entries */
+ if (parse_num(&param.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(&param.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(&param.vary, optarg))
+ goto usage;
+ continue;
+ case '?':
+ case 'h':
+ default:
+usage:
+ fprintf (stderr, "usage: %s [-n] [-D dev | -a | -A usbfs-dir]\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;
+ }
+
+ /* Find usbfs mount point */
+ if (!usbfs_dir) {
+ usbfs_dir = usbfs_dir_find();
+ if (!usbfs_dir) {
+ fputs ("usbfs files are missing\n", stderr);
+ return -1;
+ }
+ }
+
+ /* collect and list the test devices */
+ if (ftw (usbfs_dir, 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;
+}