![Colin Ian King](/assets/img/avatar_default.png)
The check for retval being less than zero is always true since retval equal to -EPIPE at that point. Replace the existing conditional with just return retval. Detected with CoverityScan, CID#114349 ("Logically dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2966 lines
76 KiB
C
2966 lines
76 KiB
C
#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/scatterlist.h>
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#include <linux/mutex.h>
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#include <linux/timer.h>
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#include <linux/usb.h>
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#define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */
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/*-------------------------------------------------------------------------*/
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static int override_alt = -1;
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module_param_named(alt, override_alt, int, 0644);
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MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection");
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static void complicated_callback(struct urb *urb);
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/*-------------------------------------------------------------------------*/
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/* FIXME make these public somewhere; usbdevfs.h? */
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/* Parameter for usbtest driver. */
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struct usbtest_param_32 {
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/* inputs */
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__u32 test_num; /* 0..(TEST_CASES-1) */
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__u32 iterations;
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__u32 length;
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__u32 vary;
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__u32 sglen;
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/* outputs */
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__s32 duration_sec;
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__s32 duration_usec;
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};
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/*
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* Compat parameter to the usbtest driver.
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* This supports older user space binaries compiled with 64 bit compiler.
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*/
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struct usbtest_param_64 {
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/* inputs */
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__u32 test_num; /* 0..(TEST_CASES-1) */
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__u32 iterations;
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__u32 length;
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__u32 vary;
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__u32 sglen;
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/* outputs */
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__s64 duration_sec;
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__s64 duration_usec;
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};
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/* IOCTL interface to the driver. */
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#define USBTEST_REQUEST_32 _IOWR('U', 100, struct usbtest_param_32)
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/* COMPAT IOCTL interface to the driver. */
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#define USBTEST_REQUEST_64 _IOWR('U', 100, struct usbtest_param_64)
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/*-------------------------------------------------------------------------*/
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#define GENERIC /* let probe() bind using module params */
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/* Some devices that can be used for testing will have "real" drivers.
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* Entries for those need to be enabled here by hand, after disabling
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* that "real" driver.
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*/
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//#define IBOT2 /* grab iBOT2 webcams */
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//#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
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/*-------------------------------------------------------------------------*/
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struct usbtest_info {
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const char *name;
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u8 ep_in; /* bulk/intr source */
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u8 ep_out; /* bulk/intr sink */
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unsigned autoconf:1;
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unsigned ctrl_out:1;
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unsigned iso:1; /* try iso in/out */
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unsigned intr:1; /* try interrupt in/out */
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int alt;
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};
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/* this is accessed only through usbfs ioctl calls.
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* one ioctl to issue a test ... one lock per device.
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* tests create other threads if they need them.
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* urbs and buffers are allocated dynamically,
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* and data generated deterministically.
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*/
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struct usbtest_dev {
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struct usb_interface *intf;
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struct usbtest_info *info;
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int in_pipe;
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int out_pipe;
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int in_iso_pipe;
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int out_iso_pipe;
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int in_int_pipe;
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int out_int_pipe;
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struct usb_endpoint_descriptor *iso_in, *iso_out;
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struct usb_endpoint_descriptor *int_in, *int_out;
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struct mutex lock;
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#define TBUF_SIZE 256
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u8 *buf;
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};
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static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
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{
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return interface_to_usbdev(test->intf);
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}
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/* set up all urbs so they can be used with either bulk or interrupt */
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#define INTERRUPT_RATE 1 /* msec/transfer */
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#define ERROR(tdev, fmt, args...) \
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dev_err(&(tdev)->intf->dev , fmt , ## args)
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#define WARNING(tdev, fmt, args...) \
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dev_warn(&(tdev)->intf->dev , fmt , ## args)
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#define GUARD_BYTE 0xA5
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#define MAX_SGLEN 128
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/*-------------------------------------------------------------------------*/
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static int
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get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
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{
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int tmp;
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struct usb_host_interface *alt;
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struct usb_host_endpoint *in, *out;
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struct usb_host_endpoint *iso_in, *iso_out;
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struct usb_host_endpoint *int_in, *int_out;
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struct usb_device *udev;
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for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
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unsigned ep;
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in = out = NULL;
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iso_in = iso_out = NULL;
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int_in = int_out = NULL;
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alt = intf->altsetting + tmp;
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if (override_alt >= 0 &&
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override_alt != alt->desc.bAlternateSetting)
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continue;
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/* take the first altsetting with in-bulk + out-bulk;
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* ignore other endpoints and altsettings.
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*/
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for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
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struct usb_host_endpoint *e;
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e = alt->endpoint + ep;
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switch (usb_endpoint_type(&e->desc)) {
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case USB_ENDPOINT_XFER_BULK:
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break;
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case USB_ENDPOINT_XFER_INT:
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if (dev->info->intr)
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goto try_intr;
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case USB_ENDPOINT_XFER_ISOC:
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if (dev->info->iso)
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goto try_iso;
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/* FALLTHROUGH */
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default:
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continue;
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}
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if (usb_endpoint_dir_in(&e->desc)) {
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if (!in)
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in = e;
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} else {
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if (!out)
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out = e;
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}
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continue;
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try_intr:
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if (usb_endpoint_dir_in(&e->desc)) {
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if (!int_in)
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int_in = e;
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} else {
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if (!int_out)
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int_out = e;
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}
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continue;
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try_iso:
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if (usb_endpoint_dir_in(&e->desc)) {
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if (!iso_in)
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iso_in = e;
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} else {
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if (!iso_out)
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iso_out = e;
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}
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}
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if ((in && out) || iso_in || iso_out || int_in || int_out)
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goto found;
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}
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return -EINVAL;
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found:
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udev = testdev_to_usbdev(dev);
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dev->info->alt = alt->desc.bAlternateSetting;
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if (alt->desc.bAlternateSetting != 0) {
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tmp = usb_set_interface(udev,
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alt->desc.bInterfaceNumber,
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alt->desc.bAlternateSetting);
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if (tmp < 0)
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return tmp;
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}
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if (in) {
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dev->in_pipe = usb_rcvbulkpipe(udev,
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in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
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dev->out_pipe = usb_sndbulkpipe(udev,
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out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
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}
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if (iso_in) {
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dev->iso_in = &iso_in->desc;
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dev->in_iso_pipe = usb_rcvisocpipe(udev,
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iso_in->desc.bEndpointAddress
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& USB_ENDPOINT_NUMBER_MASK);
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}
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if (iso_out) {
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dev->iso_out = &iso_out->desc;
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dev->out_iso_pipe = usb_sndisocpipe(udev,
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iso_out->desc.bEndpointAddress
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& USB_ENDPOINT_NUMBER_MASK);
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}
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if (int_in) {
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dev->int_in = &int_in->desc;
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dev->in_int_pipe = usb_rcvintpipe(udev,
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int_in->desc.bEndpointAddress
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& USB_ENDPOINT_NUMBER_MASK);
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}
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if (int_out) {
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dev->int_out = &int_out->desc;
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dev->out_int_pipe = usb_sndintpipe(udev,
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int_out->desc.bEndpointAddress
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& USB_ENDPOINT_NUMBER_MASK);
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}
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return 0;
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}
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/*-------------------------------------------------------------------------*/
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/* Support for testing basic non-queued I/O streams.
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*
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* These just package urbs as requests that can be easily canceled.
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* Each urb's data buffer is dynamically allocated; callers can fill
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* them with non-zero test data (or test for it) when appropriate.
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*/
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static void simple_callback(struct urb *urb)
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{
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complete(urb->context);
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}
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static struct urb *usbtest_alloc_urb(
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struct usb_device *udev,
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int pipe,
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unsigned long bytes,
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unsigned transfer_flags,
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unsigned offset,
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u8 bInterval,
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usb_complete_t complete_fn)
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{
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struct urb *urb;
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urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!urb)
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return urb;
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if (bInterval)
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usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn,
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NULL, bInterval);
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else
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usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn,
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NULL);
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urb->interval = (udev->speed == USB_SPEED_HIGH)
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? (INTERRUPT_RATE << 3)
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: INTERRUPT_RATE;
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urb->transfer_flags = transfer_flags;
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if (usb_pipein(pipe))
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urb->transfer_flags |= URB_SHORT_NOT_OK;
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if ((bytes + offset) == 0)
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return urb;
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if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
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urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
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GFP_KERNEL, &urb->transfer_dma);
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else
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urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL);
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if (!urb->transfer_buffer) {
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usb_free_urb(urb);
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return NULL;
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}
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/* To test unaligned transfers add an offset and fill the
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unused memory with a guard value */
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if (offset) {
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memset(urb->transfer_buffer, GUARD_BYTE, offset);
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urb->transfer_buffer += offset;
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if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
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urb->transfer_dma += offset;
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}
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/* For inbound transfers use guard byte so that test fails if
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data not correctly copied */
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memset(urb->transfer_buffer,
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usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
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bytes);
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return urb;
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}
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static struct urb *simple_alloc_urb(
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struct usb_device *udev,
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int pipe,
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unsigned long bytes,
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u8 bInterval)
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{
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return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
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bInterval, simple_callback);
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}
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static struct urb *complicated_alloc_urb(
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struct usb_device *udev,
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int pipe,
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unsigned long bytes,
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u8 bInterval)
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{
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return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
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bInterval, complicated_callback);
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}
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static unsigned pattern;
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static unsigned mod_pattern;
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module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
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static unsigned get_maxpacket(struct usb_device *udev, int pipe)
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{
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struct usb_host_endpoint *ep;
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ep = usb_pipe_endpoint(udev, pipe);
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return le16_to_cpup(&ep->desc.wMaxPacketSize);
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}
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static void simple_fill_buf(struct urb *urb)
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{
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unsigned i;
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u8 *buf = urb->transfer_buffer;
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unsigned len = urb->transfer_buffer_length;
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unsigned maxpacket;
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switch (pattern) {
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default:
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/* FALLTHROUGH */
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case 0:
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memset(buf, 0, len);
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break;
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case 1: /* mod63 */
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maxpacket = get_maxpacket(urb->dev, urb->pipe);
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for (i = 0; i < len; i++)
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*buf++ = (u8) ((i % maxpacket) % 63);
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break;
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}
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}
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static inline unsigned long buffer_offset(void *buf)
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{
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return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1);
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}
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static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb)
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{
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u8 *buf = urb->transfer_buffer;
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u8 *guard = buf - buffer_offset(buf);
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unsigned i;
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for (i = 0; guard < buf; i++, guard++) {
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if (*guard != GUARD_BYTE) {
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ERROR(tdev, "guard byte[%d] %d (not %d)\n",
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i, *guard, GUARD_BYTE);
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return -EINVAL;
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}
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}
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return 0;
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}
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static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
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{
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unsigned i;
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u8 expected;
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u8 *buf = urb->transfer_buffer;
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unsigned len = urb->actual_length;
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unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe);
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int ret = check_guard_bytes(tdev, urb);
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if (ret)
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return ret;
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for (i = 0; i < len; i++, buf++) {
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switch (pattern) {
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/* all-zeroes has no synchronization issues */
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case 0:
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expected = 0;
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break;
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/* mod63 stays in sync with short-terminated transfers,
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* or otherwise when host and gadget agree on how large
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* each usb transfer request should be. resync is done
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* with set_interface or set_config.
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*/
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case 1: /* mod63 */
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expected = (i % maxpacket) % 63;
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break;
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/* always fail unsupported patterns */
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default:
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expected = !*buf;
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break;
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}
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if (*buf == expected)
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continue;
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ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
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return -EINVAL;
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}
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return 0;
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}
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static void simple_free_urb(struct urb *urb)
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{
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unsigned long offset = buffer_offset(urb->transfer_buffer);
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if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
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usb_free_coherent(
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urb->dev,
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urb->transfer_buffer_length + offset,
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urb->transfer_buffer - offset,
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urb->transfer_dma - offset);
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else
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kfree(urb->transfer_buffer - offset);
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usb_free_urb(urb);
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}
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static int simple_io(
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struct usbtest_dev *tdev,
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struct urb *urb,
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int iterations,
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int vary,
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int expected,
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const char *label
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)
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{
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struct usb_device *udev = urb->dev;
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int max = urb->transfer_buffer_length;
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struct completion completion;
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int retval = 0;
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unsigned long expire;
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urb->context = &completion;
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while (retval == 0 && iterations-- > 0) {
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init_completion(&completion);
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if (usb_pipeout(urb->pipe)) {
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simple_fill_buf(urb);
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urb->transfer_flags |= URB_ZERO_PACKET;
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}
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retval = usb_submit_urb(urb, GFP_KERNEL);
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if (retval != 0)
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break;
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expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT);
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if (!wait_for_completion_timeout(&completion, expire)) {
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usb_kill_urb(urb);
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retval = (urb->status == -ENOENT ?
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-ETIMEDOUT : urb->status);
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} else {
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retval = urb->status;
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}
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urb->dev = udev;
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if (retval == 0 && usb_pipein(urb->pipe))
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retval = simple_check_buf(tdev, urb);
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if (vary) {
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int len = urb->transfer_buffer_length;
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len += vary;
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len %= max;
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if (len == 0)
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len = (vary < max) ? vary : max;
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urb->transfer_buffer_length = len;
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}
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/* FIXME if endpoint halted, clear halt (and log) */
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}
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urb->transfer_buffer_length = max;
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if (expected != retval)
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dev_err(&udev->dev,
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"%s failed, iterations left %d, status %d (not %d)\n",
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label, iterations, retval, expected);
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return retval;
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}
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|
|
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/*-------------------------------------------------------------------------*/
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/* We use scatterlist primitives to test queued I/O.
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* Yes, this also tests the scatterlist primitives.
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*/
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static void free_sglist(struct scatterlist *sg, int nents)
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{
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unsigned i;
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if (!sg)
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return;
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for (i = 0; i < nents; i++) {
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if (!sg_page(&sg[i]))
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continue;
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kfree(sg_virt(&sg[i]));
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}
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kfree(sg);
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}
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|
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static struct scatterlist *
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alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
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{
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struct scatterlist *sg;
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unsigned int n_size = 0;
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unsigned i;
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unsigned size = max;
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unsigned maxpacket =
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get_maxpacket(interface_to_usbdev(dev->intf), pipe);
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|
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if (max == 0)
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return NULL;
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|
|
sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL);
|
|
if (!sg)
|
|
return NULL;
|
|
sg_init_table(sg, nents);
|
|
|
|
for (i = 0; i < nents; i++) {
|
|
char *buf;
|
|
unsigned j;
|
|
|
|
buf = kzalloc(size, GFP_KERNEL);
|
|
if (!buf) {
|
|
free_sglist(sg, i);
|
|
return NULL;
|
|
}
|
|
|
|
/* kmalloc pages are always physically contiguous! */
|
|
sg_set_buf(&sg[i], buf, size);
|
|
|
|
switch (pattern) {
|
|
case 0:
|
|
/* already zeroed */
|
|
break;
|
|
case 1:
|
|
for (j = 0; j < size; j++)
|
|
*buf++ = (u8) (((j + n_size) % maxpacket) % 63);
|
|
n_size += size;
|
|
break;
|
|
}
|
|
|
|
if (vary) {
|
|
size += vary;
|
|
size %= max;
|
|
if (size == 0)
|
|
size = (vary < max) ? vary : max;
|
|
}
|
|
}
|
|
|
|
return sg;
|
|
}
|
|
|
|
static void sg_timeout(unsigned long _req)
|
|
{
|
|
struct usb_sg_request *req = (struct usb_sg_request *) _req;
|
|
|
|
usb_sg_cancel(req);
|
|
}
|
|
|
|
static int perform_sglist(
|
|
struct usbtest_dev *tdev,
|
|
unsigned iterations,
|
|
int pipe,
|
|
struct usb_sg_request *req,
|
|
struct scatterlist *sg,
|
|
int nents
|
|
)
|
|
{
|
|
struct usb_device *udev = testdev_to_usbdev(tdev);
|
|
int retval = 0;
|
|
struct timer_list sg_timer;
|
|
|
|
setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
|
|
|
|
while (retval == 0 && iterations-- > 0) {
|
|
retval = usb_sg_init(req, udev, pipe,
|
|
(udev->speed == USB_SPEED_HIGH)
|
|
? (INTERRUPT_RATE << 3)
|
|
: INTERRUPT_RATE,
|
|
sg, nents, 0, GFP_KERNEL);
|
|
|
|
if (retval)
|
|
break;
|
|
mod_timer(&sg_timer, jiffies +
|
|
msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
|
|
usb_sg_wait(req);
|
|
if (!del_timer_sync(&sg_timer))
|
|
retval = -ETIMEDOUT;
|
|
else
|
|
retval = req->status;
|
|
|
|
/* FIXME check resulting data pattern */
|
|
|
|
/* FIXME if endpoint halted, clear halt (and log) */
|
|
}
|
|
|
|
/* FIXME for unlink or fault handling tests, don't report
|
|
* failure if retval is as we expected ...
|
|
*/
|
|
if (retval)
|
|
ERROR(tdev, "perform_sglist failed, "
|
|
"iterations left %d, status %d\n",
|
|
iterations, retval);
|
|
return retval;
|
|
}
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
/* unqueued control message testing
|
|
*
|
|
* there's a nice set of device functional requirements in chapter 9 of the
|
|
* usb 2.0 spec, which we can apply to ANY device, even ones that don't use
|
|
* special test firmware.
|
|
*
|
|
* we know the device is configured (or suspended) by the time it's visible
|
|
* through usbfs. we can't change that, so we won't test enumeration (which
|
|
* worked 'well enough' to get here, this time), power management (ditto),
|
|
* or remote wakeup (which needs human interaction).
|
|
*/
|
|
|
|
static unsigned realworld = 1;
|
|
module_param(realworld, uint, 0);
|
|
MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
|
|
|
|
static int get_altsetting(struct usbtest_dev *dev)
|
|
{
|
|
struct usb_interface *iface = dev->intf;
|
|
struct usb_device *udev = interface_to_usbdev(iface);
|
|
int retval;
|
|
|
|
retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
|
|
USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
|
|
0, iface->altsetting[0].desc.bInterfaceNumber,
|
|
dev->buf, 1, USB_CTRL_GET_TIMEOUT);
|
|
switch (retval) {
|
|
case 1:
|
|
return dev->buf[0];
|
|
case 0:
|
|
retval = -ERANGE;
|
|
/* FALLTHROUGH */
|
|
default:
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
static int set_altsetting(struct usbtest_dev *dev, int alternate)
|
|
{
|
|
struct usb_interface *iface = dev->intf;
|
|
struct usb_device *udev;
|
|
|
|
if (alternate < 0 || alternate >= 256)
|
|
return -EINVAL;
|
|
|
|
udev = interface_to_usbdev(iface);
|
|
return usb_set_interface(udev,
|
|
iface->altsetting[0].desc.bInterfaceNumber,
|
|
alternate);
|
|
}
|
|
|
|
static int is_good_config(struct usbtest_dev *tdev, int len)
|
|
{
|
|
struct usb_config_descriptor *config;
|
|
|
|
if (len < sizeof(*config))
|
|
return 0;
|
|
config = (struct usb_config_descriptor *) tdev->buf;
|
|
|
|
switch (config->bDescriptorType) {
|
|
case USB_DT_CONFIG:
|
|
case USB_DT_OTHER_SPEED_CONFIG:
|
|
if (config->bLength != 9) {
|
|
ERROR(tdev, "bogus config descriptor length\n");
|
|
return 0;
|
|
}
|
|
/* this bit 'must be 1' but often isn't */
|
|
if (!realworld && !(config->bmAttributes & 0x80)) {
|
|
ERROR(tdev, "high bit of config attributes not set\n");
|
|
return 0;
|
|
}
|
|
if (config->bmAttributes & 0x1f) { /* reserved == 0 */
|
|
ERROR(tdev, "reserved config bits set\n");
|
|
return 0;
|
|
}
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
|
|
return 1;
|
|
if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
|
|
return 1;
|
|
ERROR(tdev, "bogus config descriptor read size\n");
|
|
return 0;
|
|
}
|
|
|
|
static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
|
|
{
|
|
struct usb_ext_cap_descriptor *ext;
|
|
u32 attr;
|
|
|
|
ext = (struct usb_ext_cap_descriptor *) buf;
|
|
|
|
if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
|
|
ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
|
|
return 0;
|
|
}
|
|
|
|
attr = le32_to_cpu(ext->bmAttributes);
|
|
/* bits[1:15] is used and others are reserved */
|
|
if (attr & ~0xfffe) { /* reserved == 0 */
|
|
ERROR(tdev, "reserved bits set\n");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
|
|
{
|
|
struct usb_ss_cap_descriptor *ss;
|
|
|
|
ss = (struct usb_ss_cap_descriptor *) buf;
|
|
|
|
if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
|
|
ERROR(tdev, "bogus superspeed device capability descriptor length\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* only bit[1] of bmAttributes is used for LTM and others are
|
|
* reserved
|
|
*/
|
|
if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
|
|
ERROR(tdev, "reserved bits set in bmAttributes\n");
|
|
return 0;
|
|
}
|
|
|
|
/* bits[0:3] of wSpeedSupported is used and others are reserved */
|
|
if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
|
|
ERROR(tdev, "reserved bits set in wSpeedSupported\n");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
|
|
{
|
|
struct usb_ss_container_id_descriptor *con_id;
|
|
|
|
con_id = (struct usb_ss_container_id_descriptor *) buf;
|
|
|
|
if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
|
|
ERROR(tdev, "bogus container id descriptor length\n");
|
|
return 0;
|
|
}
|
|
|
|
if (con_id->bReserved) { /* reserved == 0 */
|
|
ERROR(tdev, "reserved bits set\n");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* sanity test for standard requests working with usb_control_mesg() and some
|
|
* of the utility functions which use it.
|
|
*
|
|
* this doesn't test how endpoint halts behave or data toggles get set, since
|
|
* we won't do I/O to bulk/interrupt endpoints here (which is how to change
|
|
* halt or toggle). toggle testing is impractical without support from hcds.
|
|
*
|
|
* this avoids failing devices linux would normally work with, by not testing
|
|
* config/altsetting operations for devices that only support their defaults.
|
|
* such devices rarely support those needless operations.
|
|
*
|
|
* NOTE that since this is a sanity test, it's not examining boundary cases
|
|
* to see if usbcore, hcd, and device all behave right. such testing would
|
|
* involve varied read sizes and other operation sequences.
|
|
*/
|
|
static int ch9_postconfig(struct usbtest_dev *dev)
|
|
{
|
|
struct usb_interface *iface = dev->intf;
|
|
struct usb_device *udev = interface_to_usbdev(iface);
|
|
int i, alt, retval;
|
|
|
|
/* [9.2.3] if there's more than one altsetting, we need to be able to
|
|
* set and get each one. mostly trusts the descriptors from usbcore.
|
|
*/
|
|
for (i = 0; i < iface->num_altsetting; i++) {
|
|
|
|
/* 9.2.3 constrains the range here */
|
|
alt = iface->altsetting[i].desc.bAlternateSetting;
|
|
if (alt < 0 || alt >= iface->num_altsetting) {
|
|
dev_err(&iface->dev,
|
|
"invalid alt [%d].bAltSetting = %d\n",
|
|
i, alt);
|
|
}
|
|
|
|
/* [real world] get/set unimplemented if there's only one */
|
|
if (realworld && iface->num_altsetting == 1)
|
|
continue;
|
|
|
|
/* [9.4.10] set_interface */
|
|
retval = set_altsetting(dev, alt);
|
|
if (retval) {
|
|
dev_err(&iface->dev, "can't set_interface = %d, %d\n",
|
|
alt, retval);
|
|
return retval;
|
|
}
|
|
|
|
/* [9.4.4] get_interface always works */
|
|
retval = get_altsetting(dev);
|
|
if (retval != alt) {
|
|
dev_err(&iface->dev, "get alt should be %d, was %d\n",
|
|
alt, retval);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
}
|
|
|
|
}
|
|
|
|
/* [real world] get_config unimplemented if there's only one */
|
|
if (!realworld || udev->descriptor.bNumConfigurations != 1) {
|
|
int expected = udev->actconfig->desc.bConfigurationValue;
|
|
|
|
/* [9.4.2] get_configuration always works
|
|
* ... although some cheap devices (like one TI Hub I've got)
|
|
* won't return config descriptors except before set_config.
|
|
*/
|
|
retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
|
|
USB_REQ_GET_CONFIGURATION,
|
|
USB_DIR_IN | USB_RECIP_DEVICE,
|
|
0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
|
|
if (retval != 1 || dev->buf[0] != expected) {
|
|
dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
|
|
retval, dev->buf[0], expected);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
}
|
|
}
|
|
|
|
/* there's always [9.4.3] a device descriptor [9.6.1] */
|
|
retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
|
|
dev->buf, sizeof(udev->descriptor));
|
|
if (retval != sizeof(udev->descriptor)) {
|
|
dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
}
|
|
|
|
/*
|
|
* there's always [9.4.3] a bos device descriptor [9.6.2] in USB
|
|
* 3.0 spec
|
|
*/
|
|
if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) {
|
|
struct usb_bos_descriptor *bos = NULL;
|
|
struct usb_dev_cap_header *header = NULL;
|
|
unsigned total, num, length;
|
|
u8 *buf;
|
|
|
|
retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
|
|
sizeof(*udev->bos->desc));
|
|
if (retval != sizeof(*udev->bos->desc)) {
|
|
dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
}
|
|
|
|
bos = (struct usb_bos_descriptor *)dev->buf;
|
|
total = le16_to_cpu(bos->wTotalLength);
|
|
num = bos->bNumDeviceCaps;
|
|
|
|
if (total > TBUF_SIZE)
|
|
total = TBUF_SIZE;
|
|
|
|
/*
|
|
* get generic device-level capability descriptors [9.6.2]
|
|
* in USB 3.0 spec
|
|
*/
|
|
retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
|
|
total);
|
|
if (retval != total) {
|
|
dev_err(&iface->dev, "bos descriptor set --> %d\n",
|
|
retval);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
}
|
|
|
|
length = sizeof(*udev->bos->desc);
|
|
buf = dev->buf;
|
|
for (i = 0; i < num; i++) {
|
|
buf += length;
|
|
if (buf + sizeof(struct usb_dev_cap_header) >
|
|
dev->buf + total)
|
|
break;
|
|
|
|
header = (struct usb_dev_cap_header *)buf;
|
|
length = header->bLength;
|
|
|
|
if (header->bDescriptorType !=
|
|
USB_DT_DEVICE_CAPABILITY) {
|
|
dev_warn(&udev->dev, "not device capability descriptor, skip\n");
|
|
continue;
|
|
}
|
|
|
|
switch (header->bDevCapabilityType) {
|
|
case USB_CAP_TYPE_EXT:
|
|
if (buf + USB_DT_USB_EXT_CAP_SIZE >
|
|
dev->buf + total ||
|
|
!is_good_ext(dev, buf)) {
|
|
dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
|
|
return -EDOM;
|
|
}
|
|
break;
|
|
case USB_SS_CAP_TYPE:
|
|
if (buf + USB_DT_USB_SS_CAP_SIZE >
|
|
dev->buf + total ||
|
|
!is_good_ss_cap(dev, buf)) {
|
|
dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
|
|
return -EDOM;
|
|
}
|
|
break;
|
|
case CONTAINER_ID_TYPE:
|
|
if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
|
|
dev->buf + total ||
|
|
!is_good_con_id(dev, buf)) {
|
|
dev_err(&iface->dev, "bogus container id descriptor\n");
|
|
return -EDOM;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* there's always [9.4.3] at least one config descriptor [9.6.3] */
|
|
for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
|
|
retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
|
|
dev->buf, TBUF_SIZE);
|
|
if (!is_good_config(dev, retval)) {
|
|
dev_err(&iface->dev,
|
|
"config [%d] descriptor --> %d\n",
|
|
i, retval);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
}
|
|
|
|
/* FIXME cross-checking udev->config[i] to make sure usbcore
|
|
* parsed it right (etc) would be good testing paranoia
|
|
*/
|
|
}
|
|
|
|
/* and sometimes [9.2.6.6] speed dependent descriptors */
|
|
if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
|
|
struct usb_qualifier_descriptor *d = NULL;
|
|
|
|
/* device qualifier [9.6.2] */
|
|
retval = usb_get_descriptor(udev,
|
|
USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
|
|
sizeof(struct usb_qualifier_descriptor));
|
|
if (retval == -EPIPE) {
|
|
if (udev->speed == USB_SPEED_HIGH) {
|
|
dev_err(&iface->dev,
|
|
"hs dev qualifier --> %d\n",
|
|
retval);
|
|
return retval;
|
|
}
|
|
/* usb2.0 but not high-speed capable; fine */
|
|
} else if (retval != sizeof(struct usb_qualifier_descriptor)) {
|
|
dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
} else
|
|
d = (struct usb_qualifier_descriptor *) dev->buf;
|
|
|
|
/* might not have [9.6.2] any other-speed configs [9.6.4] */
|
|
if (d) {
|
|
unsigned max = d->bNumConfigurations;
|
|
for (i = 0; i < max; i++) {
|
|
retval = usb_get_descriptor(udev,
|
|
USB_DT_OTHER_SPEED_CONFIG, i,
|
|
dev->buf, TBUF_SIZE);
|
|
if (!is_good_config(dev, retval)) {
|
|
dev_err(&iface->dev,
|
|
"other speed config --> %d\n",
|
|
retval);
|
|
return (retval < 0) ? retval : -EDOM;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* FIXME fetch strings from at least the device descriptor */
|
|
|
|
/* [9.4.5] get_status always works */
|
|
retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
|
|
if (retval) {
|
|
dev_err(&iface->dev, "get dev status --> %d\n", retval);
|
|
return retval;
|
|
}
|
|
|
|
/* FIXME configuration.bmAttributes says if we could try to set/clear
|
|
* the device's remote wakeup feature ... if we can, test that here
|
|
*/
|
|
|
|
retval = usb_get_status(udev, USB_RECIP_INTERFACE,
|
|
iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
|
|
if (retval) {
|
|
dev_err(&iface->dev, "get interface status --> %d\n", retval);
|
|
return retval;
|
|
}
|
|
/* FIXME get status for each endpoint in the interface */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
/* use ch9 requests to test whether:
|
|
* (a) queues work for control, keeping N subtests queued and
|
|
* active (auto-resubmit) for M loops through the queue.
|
|
* (b) protocol stalls (control-only) will autorecover.
|
|
* it's not like bulk/intr; no halt clearing.
|
|
* (c) short control reads are reported and handled.
|
|
* (d) queues are always processed in-order
|
|
*/
|
|
|
|
struct ctrl_ctx {
|
|
spinlock_t lock;
|
|
struct usbtest_dev *dev;
|
|
struct completion complete;
|
|
unsigned count;
|
|
unsigned pending;
|
|
int status;
|
|
struct urb **urb;
|
|
struct usbtest_param_32 *param;
|
|
int last;
|
|
};
|
|
|
|
#define NUM_SUBCASES 16 /* how many test subcases here? */
|
|
|
|
struct subcase {
|
|
struct usb_ctrlrequest setup;
|
|
int number;
|
|
int expected;
|
|
};
|
|
|
|
static void ctrl_complete(struct urb *urb)
|
|
{
|
|
struct ctrl_ctx *ctx = urb->context;
|
|
struct usb_ctrlrequest *reqp;
|
|
struct subcase *subcase;
|
|
int status = urb->status;
|
|
|
|
reqp = (struct usb_ctrlrequest *)urb->setup_packet;
|
|
subcase = container_of(reqp, struct subcase, setup);
|
|
|
|
spin_lock(&ctx->lock);
|
|
ctx->count--;
|
|
ctx->pending--;
|
|
|
|
/* queue must transfer and complete in fifo order, unless
|
|
* usb_unlink_urb() is used to unlink something not at the
|
|
* physical queue head (not tested).
|
|
*/
|
|
if (subcase->number > 0) {
|
|
if ((subcase->number - ctx->last) != 1) {
|
|
ERROR(ctx->dev,
|
|
"subcase %d completed out of order, last %d\n",
|
|
subcase->number, ctx->last);
|
|
status = -EDOM;
|
|
ctx->last = subcase->number;
|
|
goto error;
|
|
}
|
|
}
|
|
ctx->last = subcase->number;
|
|
|
|
/* succeed or fault in only one way? */
|
|
if (status == subcase->expected)
|
|
status = 0;
|
|
|
|
/* async unlink for cleanup? */
|
|
else if (status != -ECONNRESET) {
|
|
|
|
/* some faults are allowed, not required */
|
|
if (subcase->expected > 0 && (
|
|
((status == -subcase->expected /* happened */
|
|
|| status == 0)))) /* didn't */
|
|
status = 0;
|
|
/* sometimes more than one fault is allowed */
|
|
else if (subcase->number == 12 && status == -EPIPE)
|
|
status = 0;
|
|
else
|
|
ERROR(ctx->dev, "subtest %d error, status %d\n",
|
|
subcase->number, status);
|
|
}
|
|
|
|
/* unexpected status codes mean errors; ideally, in hardware */
|
|
if (status) {
|
|
error:
|
|
if (ctx->status == 0) {
|
|
int i;
|
|
|
|
ctx->status = status;
|
|
ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
|
|
"%d left, subcase %d, len %d/%d\n",
|
|
reqp->bRequestType, reqp->bRequest,
|
|
status, ctx->count, subcase->number,
|
|
urb->actual_length,
|
|
urb->transfer_buffer_length);
|
|
|
|
/* FIXME this "unlink everything" exit route should
|
|
* be a separate test case.
|
|
*/
|
|
|
|
/* unlink whatever's still pending */
|
|
for (i = 1; i < ctx->param->sglen; i++) {
|
|
struct urb *u = ctx->urb[
|
|
(i + subcase->number)
|
|
% ctx->param->sglen];
|
|
|
|
if (u == urb || !u->dev)
|
|
continue;
|
|
spin_unlock(&ctx->lock);
|
|
status = usb_unlink_urb(u);
|
|
spin_lock(&ctx->lock);
|
|
switch (status) {
|
|
case -EINPROGRESS:
|
|
case -EBUSY:
|
|
case -EIDRM:
|
|
continue;
|
|
default:
|
|
ERROR(ctx->dev, "urb unlink --> %d\n",
|
|
status);
|
|
}
|
|
}
|
|
status = ctx->status;
|
|
}
|
|
}
|
|
|
|
/* resubmit if we need to, else mark this as done */
|
|
if ((status == 0) && (ctx->pending < ctx->count)) {
|
|
status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (status != 0) {
|
|
ERROR(ctx->dev,
|
|
"can't resubmit ctrl %02x.%02x, err %d\n",
|
|
reqp->bRequestType, reqp->bRequest, status);
|
|
urb->dev = NULL;
|
|
} else
|
|
ctx->pending++;
|
|
} else
|
|
urb->dev = NULL;
|
|
|
|
/* signal completion when nothing's queued */
|
|
if (ctx->pending == 0)
|
|
complete(&ctx->complete);
|
|
spin_unlock(&ctx->lock);
|
|
}
|
|
|
|
static int
|
|
test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param)
|
|
{
|
|
struct usb_device *udev = testdev_to_usbdev(dev);
|
|
struct urb **urb;
|
|
struct ctrl_ctx context;
|
|
int i;
|
|
|
|
if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
|
|
return -EOPNOTSUPP;
|
|
|
|
spin_lock_init(&context.lock);
|
|
context.dev = dev;
|
|
init_completion(&context.complete);
|
|
context.count = param->sglen * param->iterations;
|
|
context.pending = 0;
|
|
context.status = -ENOMEM;
|
|
context.param = param;
|
|
context.last = -1;
|
|
|
|
/* allocate and init the urbs we'll queue.
|
|
* as with bulk/intr sglists, sglen is the queue depth; it also
|
|
* controls which subtests run (more tests than sglen) or rerun.
|
|
*/
|
|
urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
for (i = 0; i < param->sglen; i++) {
|
|
int pipe = usb_rcvctrlpipe(udev, 0);
|
|
unsigned len;
|
|
struct urb *u;
|
|
struct usb_ctrlrequest req;
|
|
struct subcase *reqp;
|
|
|
|
/* sign of this variable means:
|
|
* -: tested code must return this (negative) error code
|
|
* +: tested code may return this (negative too) error code
|
|
*/
|
|
int expected = 0;
|
|
|
|
/* requests here are mostly expected to succeed on any
|
|
* device, but some are chosen to trigger protocol stalls
|
|
* or short reads.
|
|
*/
|
|
memset(&req, 0, sizeof(req));
|
|
req.bRequest = USB_REQ_GET_DESCRIPTOR;
|
|
req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
|
|
|
|
switch (i % NUM_SUBCASES) {
|
|
case 0: /* get device descriptor */
|
|
req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
|
|
len = sizeof(struct usb_device_descriptor);
|
|
break;
|
|
case 1: /* get first config descriptor (only) */
|
|
req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
|
|
len = sizeof(struct usb_config_descriptor);
|
|
break;
|
|
case 2: /* get altsetting (OFTEN STALLS) */
|
|
req.bRequest = USB_REQ_GET_INTERFACE;
|
|
req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
|
|
/* index = 0 means first interface */
|
|
len = 1;
|
|
expected = EPIPE;
|
|
break;
|
|
case 3: /* get interface status */
|
|
req.bRequest = USB_REQ_GET_STATUS;
|
|
req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
|
|
/* interface 0 */
|
|
len = 2;
|
|
break;
|
|
case 4: /* get device status */
|
|
req.bRequest = USB_REQ_GET_STATUS;
|
|
req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
|
|
len = 2;
|
|
break;
|
|
case 5: /* get device qualifier (MAY STALL) */
|
|
req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
|
|
len = sizeof(struct usb_qualifier_descriptor);
|
|
if (udev->speed != USB_SPEED_HIGH)
|
|
expected = EPIPE;
|
|
break;
|
|
case 6: /* get first config descriptor, plus interface */
|
|
req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
|
|
len = sizeof(struct usb_config_descriptor);
|
|
len += sizeof(struct usb_interface_descriptor);
|
|
break;
|
|
case 7: /* get interface descriptor (ALWAYS STALLS) */
|
|
req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
|
|
/* interface == 0 */
|
|
len = sizeof(struct usb_interface_descriptor);
|
|
expected = -EPIPE;
|
|
break;
|
|
/* NOTE: two consecutive stalls in the queue here.
|
|
* that tests fault recovery a bit more aggressively. */
|
|
case 8: /* clear endpoint halt (MAY STALL) */
|
|
req.bRequest = USB_REQ_CLEAR_FEATURE;
|
|
req.bRequestType = USB_RECIP_ENDPOINT;
|
|
/* wValue 0 == ep halt */
|
|
/* wIndex 0 == ep0 (shouldn't halt!) */
|
|
len = 0;
|
|
pipe = usb_sndctrlpipe(udev, 0);
|
|
expected = EPIPE;
|
|
break;
|
|
case 9: /* get endpoint status */
|
|
req.bRequest = USB_REQ_GET_STATUS;
|
|
req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
|
|
/* endpoint 0 */
|
|
len = 2;
|
|
break;
|
|
case 10: /* trigger short read (EREMOTEIO) */
|
|
req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
|
|
len = 1024;
|
|
expected = -EREMOTEIO;
|
|
break;
|
|
/* NOTE: two consecutive _different_ faults in the queue. */
|
|
case 11: /* get endpoint descriptor (ALWAYS STALLS) */
|
|
req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
|
|
/* endpoint == 0 */
|
|
len = sizeof(struct usb_interface_descriptor);
|
|
expected = EPIPE;
|
|
break;
|
|
/* NOTE: sometimes even a third fault in the queue! */
|
|
case 12: /* get string 0 descriptor (MAY STALL) */
|
|
req.wValue = cpu_to_le16(USB_DT_STRING << 8);
|
|
/* string == 0, for language IDs */
|
|
len = sizeof(struct usb_interface_descriptor);
|
|
/* may succeed when > 4 languages */
|
|
expected = EREMOTEIO; /* or EPIPE, if no strings */
|
|
break;
|
|
case 13: /* short read, resembling case 10 */
|
|
req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
|
|
/* last data packet "should" be DATA1, not DATA0 */
|
|
if (udev->speed == USB_SPEED_SUPER)
|
|
len = 1024 - 512;
|
|
else
|
|
len = 1024 - udev->descriptor.bMaxPacketSize0;
|
|
expected = -EREMOTEIO;
|
|
break;
|
|
case 14: /* short read; try to fill the last packet */
|
|
req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
|
|
/* device descriptor size == 18 bytes */
|
|
len = udev->descriptor.bMaxPacketSize0;
|
|
if (udev->speed == USB_SPEED_SUPER)
|
|
len = 512;
|
|
switch (len) {
|
|
case 8:
|
|
len = 24;
|
|
break;
|
|
case 16:
|
|
len = 32;
|
|
break;
|
|
}
|
|
expected = -EREMOTEIO;
|
|
break;
|
|
case 15:
|
|
req.wValue = cpu_to_le16(USB_DT_BOS << 8);
|
|
if (udev->bos)
|
|
len = le16_to_cpu(udev->bos->desc->wTotalLength);
|
|
else
|
|
len = sizeof(struct usb_bos_descriptor);
|
|
if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201)
|
|
expected = -EPIPE;
|
|
break;
|
|
default:
|
|
ERROR(dev, "bogus number of ctrl queue testcases!\n");
|
|
context.status = -EINVAL;
|
|
goto cleanup;
|
|
}
|
|
req.wLength = cpu_to_le16(len);
|
|
urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);
|
|
if (!u)
|
|
goto cleanup;
|
|
|
|
reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
|
|
if (!reqp)
|
|
goto cleanup;
|
|
reqp->setup = req;
|
|
reqp->number = i % NUM_SUBCASES;
|
|
reqp->expected = expected;
|
|
u->setup_packet = (char *) &reqp->setup;
|
|
|
|
u->context = &context;
|
|
u->complete = ctrl_complete;
|
|
}
|
|
|
|
/* queue the urbs */
|
|
context.urb = urb;
|
|
spin_lock_irq(&context.lock);
|
|
for (i = 0; i < param->sglen; i++) {
|
|
context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
|
|
if (context.status != 0) {
|
|
ERROR(dev, "can't submit urb[%d], status %d\n",
|
|
i, context.status);
|
|
context.count = context.pending;
|
|
break;
|
|
}
|
|
context.pending++;
|
|
}
|
|
spin_unlock_irq(&context.lock);
|
|
|
|
/* FIXME set timer and time out; provide a disconnect hook */
|
|
|
|
/* wait for the last one to complete */
|
|
if (context.pending > 0)
|
|
wait_for_completion(&context.complete);
|
|
|
|
cleanup:
|
|
for (i = 0; i < param->sglen; i++) {
|
|
if (!urb[i])
|
|
continue;
|
|
urb[i]->dev = udev;
|
|
kfree(urb[i]->setup_packet);
|
|
simple_free_urb(urb[i]);
|
|
}
|
|
kfree(urb);
|
|
return context.status;
|
|
}
|
|
#undef NUM_SUBCASES
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static void unlink1_callback(struct urb *urb)
|
|
{
|
|
int status = urb->status;
|
|
|
|
/* we "know" -EPIPE (stall) never happens */
|
|
if (!status)
|
|
status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (status) {
|
|
urb->status = status;
|
|
complete(urb->context);
|
|
}
|
|
}
|
|
|
|
static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
|
|
{
|
|
struct urb *urb;
|
|
struct completion completion;
|
|
int retval = 0;
|
|
|
|
init_completion(&completion);
|
|
urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
urb->context = &completion;
|
|
urb->complete = unlink1_callback;
|
|
|
|
if (usb_pipeout(urb->pipe)) {
|
|
simple_fill_buf(urb);
|
|
urb->transfer_flags |= URB_ZERO_PACKET;
|
|
}
|
|
|
|
/* keep the endpoint busy. there are lots of hc/hcd-internal
|
|
* states, and testing should get to all of them over time.
|
|
*
|
|
* FIXME want additional tests for when endpoint is STALLing
|
|
* due to errors, or is just NAKing requests.
|
|
*/
|
|
retval = usb_submit_urb(urb, GFP_KERNEL);
|
|
if (retval != 0) {
|
|
dev_err(&dev->intf->dev, "submit fail %d\n", retval);
|
|
return retval;
|
|
}
|
|
|
|
/* unlinking that should always work. variable delay tests more
|
|
* hcd states and code paths, even with little other system load.
|
|
*/
|
|
msleep(jiffies % (2 * INTERRUPT_RATE));
|
|
if (async) {
|
|
while (!completion_done(&completion)) {
|
|
retval = usb_unlink_urb(urb);
|
|
|
|
if (retval == 0 && usb_pipein(urb->pipe))
|
|
retval = simple_check_buf(dev, urb);
|
|
|
|
switch (retval) {
|
|
case -EBUSY:
|
|
case -EIDRM:
|
|
/* we can't unlink urbs while they're completing
|
|
* or if they've completed, and we haven't
|
|
* resubmitted. "normal" drivers would prevent
|
|
* resubmission, but since we're testing unlink
|
|
* paths, we can't.
|
|
*/
|
|
ERROR(dev, "unlink retry\n");
|
|
continue;
|
|
case 0:
|
|
case -EINPROGRESS:
|
|
break;
|
|
|
|
default:
|
|
dev_err(&dev->intf->dev,
|
|
"unlink fail %d\n", retval);
|
|
return retval;
|
|
}
|
|
|
|
break;
|
|
}
|
|
} else
|
|
usb_kill_urb(urb);
|
|
|
|
wait_for_completion(&completion);
|
|
retval = urb->status;
|
|
simple_free_urb(urb);
|
|
|
|
if (async)
|
|
return (retval == -ECONNRESET) ? 0 : retval - 1000;
|
|
else
|
|
return (retval == -ENOENT || retval == -EPERM) ?
|
|
0 : retval - 2000;
|
|
}
|
|
|
|
static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
|
|
{
|
|
int retval = 0;
|
|
|
|
/* test sync and async paths */
|
|
retval = unlink1(dev, pipe, len, 1);
|
|
if (!retval)
|
|
retval = unlink1(dev, pipe, len, 0);
|
|
return retval;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
struct queued_ctx {
|
|
struct completion complete;
|
|
atomic_t pending;
|
|
unsigned num;
|
|
int status;
|
|
struct urb **urbs;
|
|
};
|
|
|
|
static void unlink_queued_callback(struct urb *urb)
|
|
{
|
|
int status = urb->status;
|
|
struct queued_ctx *ctx = urb->context;
|
|
|
|
if (ctx->status)
|
|
goto done;
|
|
if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {
|
|
if (status == -ECONNRESET)
|
|
goto done;
|
|
/* What error should we report if the URB completed normally? */
|
|
}
|
|
if (status != 0)
|
|
ctx->status = status;
|
|
|
|
done:
|
|
if (atomic_dec_and_test(&ctx->pending))
|
|
complete(&ctx->complete);
|
|
}
|
|
|
|
static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
|
|
unsigned size)
|
|
{
|
|
struct queued_ctx ctx;
|
|
struct usb_device *udev = testdev_to_usbdev(dev);
|
|
void *buf;
|
|
dma_addr_t buf_dma;
|
|
int i;
|
|
int retval = -ENOMEM;
|
|
|
|
init_completion(&ctx.complete);
|
|
atomic_set(&ctx.pending, 1); /* One more than the actual value */
|
|
ctx.num = num;
|
|
ctx.status = 0;
|
|
|
|
buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma);
|
|
if (!buf)
|
|
return retval;
|
|
memset(buf, 0, size);
|
|
|
|
/* Allocate and init the urbs we'll queue */
|
|
ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);
|
|
if (!ctx.urbs)
|
|
goto free_buf;
|
|
for (i = 0; i < num; i++) {
|
|
ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!ctx.urbs[i])
|
|
goto free_urbs;
|
|
usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size,
|
|
unlink_queued_callback, &ctx);
|
|
ctx.urbs[i]->transfer_dma = buf_dma;
|
|
ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
if (usb_pipeout(ctx.urbs[i]->pipe)) {
|
|
simple_fill_buf(ctx.urbs[i]);
|
|
ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
|
|
}
|
|
}
|
|
|
|
/* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
|
|
for (i = 0; i < num; i++) {
|
|
atomic_inc(&ctx.pending);
|
|
retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL);
|
|
if (retval != 0) {
|
|
dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n",
|
|
i, retval);
|
|
atomic_dec(&ctx.pending);
|
|
ctx.status = retval;
|
|
break;
|
|
}
|
|
}
|
|
if (i == num) {
|
|
usb_unlink_urb(ctx.urbs[num - 4]);
|
|
usb_unlink_urb(ctx.urbs[num - 2]);
|
|
} else {
|
|
while (--i >= 0)
|
|
usb_unlink_urb(ctx.urbs[i]);
|
|
}
|
|
|
|
if (atomic_dec_and_test(&ctx.pending)) /* The extra count */
|
|
complete(&ctx.complete);
|
|
wait_for_completion(&ctx.complete);
|
|
retval = ctx.status;
|
|
|
|
free_urbs:
|
|
for (i = 0; i < num; i++)
|
|
usb_free_urb(ctx.urbs[i]);
|
|
kfree(ctx.urbs);
|
|
free_buf:
|
|
usb_free_coherent(udev, size, buf, buf_dma);
|
|
return retval;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
|
|
{
|
|
int retval;
|
|
u16 status;
|
|
|
|
/* shouldn't look or act halted */
|
|
retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
|
|
if (retval < 0) {
|
|
ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
|
|
ep, retval);
|
|
return retval;
|
|
}
|
|
if (status != 0) {
|
|
ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
|
|
return -EINVAL;
|
|
}
|
|
retval = simple_io(tdev, urb, 1, 0, 0, __func__);
|
|
if (retval != 0)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
|
|
{
|
|
int retval;
|
|
u16 status;
|
|
|
|
/* should look and act halted */
|
|
retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
|
|
if (retval < 0) {
|
|
ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
|
|
ep, retval);
|
|
return retval;
|
|
}
|
|
if (status != 1) {
|
|
ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
|
|
return -EINVAL;
|
|
}
|
|
retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
|
|
if (retval != -EPIPE)
|
|
return -EINVAL;
|
|
retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
|
|
if (retval != -EPIPE)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
|
|
{
|
|
int retval;
|
|
|
|
/* shouldn't look or act halted now */
|
|
retval = verify_not_halted(tdev, ep, urb);
|
|
if (retval < 0)
|
|
return retval;
|
|
|
|
/* set halt (protocol test only), verify it worked */
|
|
retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
|
|
USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
|
|
USB_ENDPOINT_HALT, ep,
|
|
NULL, 0, USB_CTRL_SET_TIMEOUT);
|
|
if (retval < 0) {
|
|
ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
|
|
return retval;
|
|
}
|
|
retval = verify_halted(tdev, ep, urb);
|
|
if (retval < 0) {
|
|
int ret;
|
|
|
|
/* clear halt anyways, else further tests will fail */
|
|
ret = usb_clear_halt(urb->dev, urb->pipe);
|
|
if (ret)
|
|
ERROR(tdev, "ep %02x couldn't clear halt, %d\n",
|
|
ep, ret);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/* clear halt (tests API + protocol), verify it worked */
|
|
retval = usb_clear_halt(urb->dev, urb->pipe);
|
|
if (retval < 0) {
|
|
ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
|
|
return retval;
|
|
}
|
|
retval = verify_not_halted(tdev, ep, urb);
|
|
if (retval < 0)
|
|
return retval;
|
|
|
|
/* NOTE: could also verify SET_INTERFACE clear halts ... */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int halt_simple(struct usbtest_dev *dev)
|
|
{
|
|
int ep;
|
|
int retval = 0;
|
|
struct urb *urb;
|
|
struct usb_device *udev = testdev_to_usbdev(dev);
|
|
|
|
if (udev->speed == USB_SPEED_SUPER)
|
|
urb = simple_alloc_urb(udev, 0, 1024, 0);
|
|
else
|
|
urb = simple_alloc_urb(udev, 0, 512, 0);
|
|
if (urb == NULL)
|
|
return -ENOMEM;
|
|
|
|
if (dev->in_pipe) {
|
|
ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
|
|
urb->pipe = dev->in_pipe;
|
|
retval = test_halt(dev, ep, urb);
|
|
if (retval < 0)
|
|
goto done;
|
|
}
|
|
|
|
if (dev->out_pipe) {
|
|
ep = usb_pipeendpoint(dev->out_pipe);
|
|
urb->pipe = dev->out_pipe;
|
|
retval = test_halt(dev, ep, urb);
|
|
}
|
|
done:
|
|
simple_free_urb(urb);
|
|
return retval;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
/* Control OUT tests use the vendor control requests from Intel's
|
|
* USB 2.0 compliance test device: write a buffer, read it back.
|
|
*
|
|
* Intel's spec only _requires_ that it work for one packet, which
|
|
* is pretty weak. Some HCDs place limits here; most devices will
|
|
* need to be able to handle more than one OUT data packet. We'll
|
|
* try whatever we're told to try.
|
|
*/
|
|
static int ctrl_out(struct usbtest_dev *dev,
|
|
unsigned count, unsigned length, unsigned vary, unsigned offset)
|
|
{
|
|
unsigned i, j, len;
|
|
int retval;
|
|
u8 *buf;
|
|
char *what = "?";
|
|
struct usb_device *udev;
|
|
|
|
if (length < 1 || length > 0xffff || vary >= length)
|
|
return -EINVAL;
|
|
|
|
buf = kmalloc(length + offset, GFP_KERNEL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
buf += offset;
|
|
udev = testdev_to_usbdev(dev);
|
|
len = length;
|
|
retval = 0;
|
|
|
|
/* NOTE: hardware might well act differently if we pushed it
|
|
* with lots back-to-back queued requests.
|
|
*/
|
|
for (i = 0; i < count; i++) {
|
|
/* write patterned data */
|
|
for (j = 0; j < len; j++)
|
|
buf[j] = (u8)(i + j);
|
|
retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
|
|
0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
|
|
0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
|
|
if (retval != len) {
|
|
what = "write";
|
|
if (retval >= 0) {
|
|
ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
|
|
retval, len);
|
|
retval = -EBADMSG;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* read it back -- assuming nothing intervened!! */
|
|
retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
|
|
0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
|
|
0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
|
|
if (retval != len) {
|
|
what = "read";
|
|
if (retval >= 0) {
|
|
ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
|
|
retval, len);
|
|
retval = -EBADMSG;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* fail if we can't verify */
|
|
for (j = 0; j < len; j++) {
|
|
if (buf[j] != (u8)(i + j)) {
|
|
ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
|
|
j, buf[j], (u8)(i + j));
|
|
retval = -EBADMSG;
|
|
break;
|
|
}
|
|
}
|
|
if (retval < 0) {
|
|
what = "verify";
|
|
break;
|
|
}
|
|
|
|
len += vary;
|
|
|
|
/* [real world] the "zero bytes IN" case isn't really used.
|
|
* hardware can easily trip up in this weird case, since its
|
|
* status stage is IN, not OUT like other ep0in transfers.
|
|
*/
|
|
if (len > length)
|
|
len = realworld ? 1 : 0;
|
|
}
|
|
|
|
if (retval < 0)
|
|
ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
|
|
what, retval, i);
|
|
|
|
kfree(buf - offset);
|
|
return retval;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
/* ISO/BULK tests ... mimics common usage
|
|
* - buffer length is split into N packets (mostly maxpacket sized)
|
|
* - multi-buffers according to sglen
|
|
*/
|
|
|
|
struct transfer_context {
|
|
unsigned count;
|
|
unsigned pending;
|
|
spinlock_t lock;
|
|
struct completion done;
|
|
int submit_error;
|
|
unsigned long errors;
|
|
unsigned long packet_count;
|
|
struct usbtest_dev *dev;
|
|
bool is_iso;
|
|
};
|
|
|
|
static void complicated_callback(struct urb *urb)
|
|
{
|
|
struct transfer_context *ctx = urb->context;
|
|
|
|
spin_lock(&ctx->lock);
|
|
ctx->count--;
|
|
|
|
ctx->packet_count += urb->number_of_packets;
|
|
if (urb->error_count > 0)
|
|
ctx->errors += urb->error_count;
|
|
else if (urb->status != 0)
|
|
ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
|
|
else if (urb->actual_length != urb->transfer_buffer_length)
|
|
ctx->errors++;
|
|
else if (check_guard_bytes(ctx->dev, urb) != 0)
|
|
ctx->errors++;
|
|
|
|
if (urb->status == 0 && ctx->count > (ctx->pending - 1)
|
|
&& !ctx->submit_error) {
|
|
int status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
switch (status) {
|
|
case 0:
|
|
goto done;
|
|
default:
|
|
dev_err(&ctx->dev->intf->dev,
|
|
"resubmit err %d\n",
|
|
status);
|
|
/* FALLTHROUGH */
|
|
case -ENODEV: /* disconnected */
|
|
case -ESHUTDOWN: /* endpoint disabled */
|
|
ctx->submit_error = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ctx->pending--;
|
|
if (ctx->pending == 0) {
|
|
if (ctx->errors)
|
|
dev_err(&ctx->dev->intf->dev,
|
|
"during the test, %lu errors out of %lu\n",
|
|
ctx->errors, ctx->packet_count);
|
|
complete(&ctx->done);
|
|
}
|
|
done:
|
|
spin_unlock(&ctx->lock);
|
|
}
|
|
|
|
static struct urb *iso_alloc_urb(
|
|
struct usb_device *udev,
|
|
int pipe,
|
|
struct usb_endpoint_descriptor *desc,
|
|
long bytes,
|
|
unsigned offset
|
|
)
|
|
{
|
|
struct urb *urb;
|
|
unsigned i, maxp, packets;
|
|
|
|
if (bytes < 0 || !desc)
|
|
return NULL;
|
|
maxp = 0x7ff & usb_endpoint_maxp(desc);
|
|
maxp *= usb_endpoint_maxp_mult(desc);
|
|
packets = DIV_ROUND_UP(bytes, maxp);
|
|
|
|
urb = usb_alloc_urb(packets, GFP_KERNEL);
|
|
if (!urb)
|
|
return urb;
|
|
urb->dev = udev;
|
|
urb->pipe = pipe;
|
|
|
|
urb->number_of_packets = packets;
|
|
urb->transfer_buffer_length = bytes;
|
|
urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
|
|
GFP_KERNEL,
|
|
&urb->transfer_dma);
|
|
if (!urb->transfer_buffer) {
|
|
usb_free_urb(urb);
|
|
return NULL;
|
|
}
|
|
if (offset) {
|
|
memset(urb->transfer_buffer, GUARD_BYTE, offset);
|
|
urb->transfer_buffer += offset;
|
|
urb->transfer_dma += offset;
|
|
}
|
|
/* For inbound transfers use guard byte so that test fails if
|
|
data not correctly copied */
|
|
memset(urb->transfer_buffer,
|
|
usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
|
|
bytes);
|
|
|
|
for (i = 0; i < packets; i++) {
|
|
/* here, only the last packet will be short */
|
|
urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
|
|
bytes -= urb->iso_frame_desc[i].length;
|
|
|
|
urb->iso_frame_desc[i].offset = maxp * i;
|
|
}
|
|
|
|
urb->complete = complicated_callback;
|
|
/* urb->context = SET BY CALLER */
|
|
urb->interval = 1 << (desc->bInterval - 1);
|
|
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
|
|
return urb;
|
|
}
|
|
|
|
static int
|
|
test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param,
|
|
int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
|
|
{
|
|
struct transfer_context context;
|
|
struct usb_device *udev;
|
|
unsigned i;
|
|
unsigned long packets = 0;
|
|
int status = 0;
|
|
struct urb *urbs[param->sglen];
|
|
|
|
memset(&context, 0, sizeof(context));
|
|
context.count = param->iterations * param->sglen;
|
|
context.dev = dev;
|
|
context.is_iso = !!desc;
|
|
init_completion(&context.done);
|
|
spin_lock_init(&context.lock);
|
|
|
|
udev = testdev_to_usbdev(dev);
|
|
|
|
for (i = 0; i < param->sglen; i++) {
|
|
if (context.is_iso)
|
|
urbs[i] = iso_alloc_urb(udev, pipe, desc,
|
|
param->length, offset);
|
|
else
|
|
urbs[i] = complicated_alloc_urb(udev, pipe,
|
|
param->length, 0);
|
|
|
|
if (!urbs[i]) {
|
|
status = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
packets += urbs[i]->number_of_packets;
|
|
urbs[i]->context = &context;
|
|
}
|
|
packets *= param->iterations;
|
|
|
|
if (context.is_iso) {
|
|
dev_info(&dev->intf->dev,
|
|
"iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
|
|
1 << (desc->bInterval - 1),
|
|
(udev->speed == USB_SPEED_HIGH) ? "micro" : "",
|
|
usb_endpoint_maxp(desc),
|
|
usb_endpoint_maxp_mult(desc));
|
|
|
|
dev_info(&dev->intf->dev,
|
|
"total %lu msec (%lu packets)\n",
|
|
(packets * (1 << (desc->bInterval - 1)))
|
|
/ ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
|
|
packets);
|
|
}
|
|
|
|
spin_lock_irq(&context.lock);
|
|
for (i = 0; i < param->sglen; i++) {
|
|
++context.pending;
|
|
status = usb_submit_urb(urbs[i], GFP_ATOMIC);
|
|
if (status < 0) {
|
|
ERROR(dev, "submit iso[%d], error %d\n", i, status);
|
|
if (i == 0) {
|
|
spin_unlock_irq(&context.lock);
|
|
goto fail;
|
|
}
|
|
|
|
simple_free_urb(urbs[i]);
|
|
urbs[i] = NULL;
|
|
context.pending--;
|
|
context.submit_error = 1;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irq(&context.lock);
|
|
|
|
wait_for_completion(&context.done);
|
|
|
|
for (i = 0; i < param->sglen; i++) {
|
|
if (urbs[i])
|
|
simple_free_urb(urbs[i]);
|
|
}
|
|
/*
|
|
* Isochronous transfers are expected to fail sometimes. As an
|
|
* arbitrary limit, we will report an error if any submissions
|
|
* fail or if the transfer failure rate is > 10%.
|
|
*/
|
|
if (status != 0)
|
|
;
|
|
else if (context.submit_error)
|
|
status = -EACCES;
|
|
else if (context.errors >
|
|
(context.is_iso ? context.packet_count / 10 : 0))
|
|
status = -EIO;
|
|
return status;
|
|
|
|
fail:
|
|
for (i = 0; i < param->sglen; i++) {
|
|
if (urbs[i])
|
|
simple_free_urb(urbs[i]);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
static int test_unaligned_bulk(
|
|
struct usbtest_dev *tdev,
|
|
int pipe,
|
|
unsigned length,
|
|
int iterations,
|
|
unsigned transfer_flags,
|
|
const char *label)
|
|
{
|
|
int retval;
|
|
struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
|
|
pipe, length, transfer_flags, 1, 0, simple_callback);
|
|
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
|
|
retval = simple_io(tdev, urb, iterations, 0, 0, label);
|
|
simple_free_urb(urb);
|
|
return retval;
|
|
}
|
|
|
|
/* Run tests. */
|
|
static int
|
|
usbtest_do_ioctl(struct usb_interface *intf, struct usbtest_param_32 *param)
|
|
{
|
|
struct usbtest_dev *dev = usb_get_intfdata(intf);
|
|
struct usb_device *udev = testdev_to_usbdev(dev);
|
|
struct urb *urb;
|
|
struct scatterlist *sg;
|
|
struct usb_sg_request req;
|
|
unsigned i;
|
|
int retval = -EOPNOTSUPP;
|
|
|
|
if (param->iterations <= 0)
|
|
return -EINVAL;
|
|
/*
|
|
* Just a bunch of test cases that every HCD is expected to handle.
|
|
*
|
|
* Some may need specific firmware, though it'd be good to have
|
|
* one firmware image to handle all the test cases.
|
|
*
|
|
* FIXME add more tests! cancel requests, verify the data, control
|
|
* queueing, concurrent read+write threads, and so on.
|
|
*/
|
|
switch (param->test_num) {
|
|
|
|
case 0:
|
|
dev_info(&intf->dev, "TEST 0: NOP\n");
|
|
retval = 0;
|
|
break;
|
|
|
|
/* Simple non-queued bulk I/O tests */
|
|
case 1:
|
|
if (dev->out_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 1: write %d bytes %u times\n",
|
|
param->length, param->iterations);
|
|
urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
|
|
if (!urb) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk sink (maybe accepts short writes) */
|
|
retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
|
|
simple_free_urb(urb);
|
|
break;
|
|
case 2:
|
|
if (dev->in_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 2: read %d bytes %u times\n",
|
|
param->length, param->iterations);
|
|
urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
|
|
if (!urb) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk source (maybe generates short writes) */
|
|
retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
|
|
simple_free_urb(urb);
|
|
break;
|
|
case 3:
|
|
if (dev->out_pipe == 0 || param->vary == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 3: write/%d 0..%d bytes %u times\n",
|
|
param->vary, param->length, param->iterations);
|
|
urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
|
|
if (!urb) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk sink (maybe accepts short writes) */
|
|
retval = simple_io(dev, urb, param->iterations, param->vary,
|
|
0, "test3");
|
|
simple_free_urb(urb);
|
|
break;
|
|
case 4:
|
|
if (dev->in_pipe == 0 || param->vary == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 4: read/%d 0..%d bytes %u times\n",
|
|
param->vary, param->length, param->iterations);
|
|
urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
|
|
if (!urb) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk source (maybe generates short writes) */
|
|
retval = simple_io(dev, urb, param->iterations, param->vary,
|
|
0, "test4");
|
|
simple_free_urb(urb);
|
|
break;
|
|
|
|
/* Queued bulk I/O tests */
|
|
case 5:
|
|
if (dev->out_pipe == 0 || param->sglen == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 5: write %d sglists %d entries of %d bytes\n",
|
|
param->iterations,
|
|
param->sglen, param->length);
|
|
sg = alloc_sglist(param->sglen, param->length,
|
|
0, dev, dev->out_pipe);
|
|
if (!sg) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk sink (maybe accepts short writes) */
|
|
retval = perform_sglist(dev, param->iterations, dev->out_pipe,
|
|
&req, sg, param->sglen);
|
|
free_sglist(sg, param->sglen);
|
|
break;
|
|
|
|
case 6:
|
|
if (dev->in_pipe == 0 || param->sglen == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 6: read %d sglists %d entries of %d bytes\n",
|
|
param->iterations,
|
|
param->sglen, param->length);
|
|
sg = alloc_sglist(param->sglen, param->length,
|
|
0, dev, dev->in_pipe);
|
|
if (!sg) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk source (maybe generates short writes) */
|
|
retval = perform_sglist(dev, param->iterations, dev->in_pipe,
|
|
&req, sg, param->sglen);
|
|
free_sglist(sg, param->sglen);
|
|
break;
|
|
case 7:
|
|
if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
|
|
param->vary, param->iterations,
|
|
param->sglen, param->length);
|
|
sg = alloc_sglist(param->sglen, param->length,
|
|
param->vary, dev, dev->out_pipe);
|
|
if (!sg) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk sink (maybe accepts short writes) */
|
|
retval = perform_sglist(dev, param->iterations, dev->out_pipe,
|
|
&req, sg, param->sglen);
|
|
free_sglist(sg, param->sglen);
|
|
break;
|
|
case 8:
|
|
if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
|
|
param->vary, param->iterations,
|
|
param->sglen, param->length);
|
|
sg = alloc_sglist(param->sglen, param->length,
|
|
param->vary, dev, dev->in_pipe);
|
|
if (!sg) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: bulk source (maybe generates short writes) */
|
|
retval = perform_sglist(dev, param->iterations, dev->in_pipe,
|
|
&req, sg, param->sglen);
|
|
free_sglist(sg, param->sglen);
|
|
break;
|
|
|
|
/* non-queued sanity tests for control (chapter 9 subset) */
|
|
case 9:
|
|
retval = 0;
|
|
dev_info(&intf->dev,
|
|
"TEST 9: ch9 (subset) control tests, %d times\n",
|
|
param->iterations);
|
|
for (i = param->iterations; retval == 0 && i--; /* NOP */)
|
|
retval = ch9_postconfig(dev);
|
|
if (retval)
|
|
dev_err(&intf->dev, "ch9 subset failed, "
|
|
"iterations left %d\n", i);
|
|
break;
|
|
|
|
/* queued control messaging */
|
|
case 10:
|
|
retval = 0;
|
|
dev_info(&intf->dev,
|
|
"TEST 10: queue %d control calls, %d times\n",
|
|
param->sglen,
|
|
param->iterations);
|
|
retval = test_ctrl_queue(dev, param);
|
|
break;
|
|
|
|
/* simple non-queued unlinks (ring with one urb) */
|
|
case 11:
|
|
if (dev->in_pipe == 0 || !param->length)
|
|
break;
|
|
retval = 0;
|
|
dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
|
|
param->iterations, param->length);
|
|
for (i = param->iterations; retval == 0 && i--; /* NOP */)
|
|
retval = unlink_simple(dev, dev->in_pipe,
|
|
param->length);
|
|
if (retval)
|
|
dev_err(&intf->dev, "unlink reads failed %d, "
|
|
"iterations left %d\n", retval, i);
|
|
break;
|
|
case 12:
|
|
if (dev->out_pipe == 0 || !param->length)
|
|
break;
|
|
retval = 0;
|
|
dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
|
|
param->iterations, param->length);
|
|
for (i = param->iterations; retval == 0 && i--; /* NOP */)
|
|
retval = unlink_simple(dev, dev->out_pipe,
|
|
param->length);
|
|
if (retval)
|
|
dev_err(&intf->dev, "unlink writes failed %d, "
|
|
"iterations left %d\n", retval, i);
|
|
break;
|
|
|
|
/* ep halt tests */
|
|
case 13:
|
|
if (dev->out_pipe == 0 && dev->in_pipe == 0)
|
|
break;
|
|
retval = 0;
|
|
dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
|
|
param->iterations);
|
|
for (i = param->iterations; retval == 0 && i--; /* NOP */)
|
|
retval = halt_simple(dev);
|
|
|
|
if (retval)
|
|
ERROR(dev, "halts failed, iterations left %d\n", i);
|
|
break;
|
|
|
|
/* control write tests */
|
|
case 14:
|
|
if (!dev->info->ctrl_out)
|
|
break;
|
|
dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
|
|
param->iterations,
|
|
realworld ? 1 : 0, param->length,
|
|
param->vary);
|
|
retval = ctrl_out(dev, param->iterations,
|
|
param->length, param->vary, 0);
|
|
break;
|
|
|
|
/* iso write tests */
|
|
case 15:
|
|
if (dev->out_iso_pipe == 0 || param->sglen == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 15: write %d iso, %d entries of %d bytes\n",
|
|
param->iterations,
|
|
param->sglen, param->length);
|
|
/* FIRMWARE: iso sink */
|
|
retval = test_queue(dev, param,
|
|
dev->out_iso_pipe, dev->iso_out, 0);
|
|
break;
|
|
|
|
/* iso read tests */
|
|
case 16:
|
|
if (dev->in_iso_pipe == 0 || param->sglen == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 16: read %d iso, %d entries of %d bytes\n",
|
|
param->iterations,
|
|
param->sglen, param->length);
|
|
/* FIRMWARE: iso source */
|
|
retval = test_queue(dev, param,
|
|
dev->in_iso_pipe, dev->iso_in, 0);
|
|
break;
|
|
|
|
/* FIXME scatterlist cancel (needs helper thread) */
|
|
|
|
/* Tests for bulk I/O using DMA mapping by core and odd address */
|
|
case 17:
|
|
if (dev->out_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 17: write odd addr %d bytes %u times core map\n",
|
|
param->length, param->iterations);
|
|
|
|
retval = test_unaligned_bulk(
|
|
dev, dev->out_pipe,
|
|
param->length, param->iterations,
|
|
0, "test17");
|
|
break;
|
|
|
|
case 18:
|
|
if (dev->in_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 18: read odd addr %d bytes %u times core map\n",
|
|
param->length, param->iterations);
|
|
|
|
retval = test_unaligned_bulk(
|
|
dev, dev->in_pipe,
|
|
param->length, param->iterations,
|
|
0, "test18");
|
|
break;
|
|
|
|
/* Tests for bulk I/O using premapped coherent buffer and odd address */
|
|
case 19:
|
|
if (dev->out_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 19: write odd addr %d bytes %u times premapped\n",
|
|
param->length, param->iterations);
|
|
|
|
retval = test_unaligned_bulk(
|
|
dev, dev->out_pipe,
|
|
param->length, param->iterations,
|
|
URB_NO_TRANSFER_DMA_MAP, "test19");
|
|
break;
|
|
|
|
case 20:
|
|
if (dev->in_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 20: read odd addr %d bytes %u times premapped\n",
|
|
param->length, param->iterations);
|
|
|
|
retval = test_unaligned_bulk(
|
|
dev, dev->in_pipe,
|
|
param->length, param->iterations,
|
|
URB_NO_TRANSFER_DMA_MAP, "test20");
|
|
break;
|
|
|
|
/* control write tests with unaligned buffer */
|
|
case 21:
|
|
if (!dev->info->ctrl_out)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
|
|
param->iterations,
|
|
realworld ? 1 : 0, param->length,
|
|
param->vary);
|
|
retval = ctrl_out(dev, param->iterations,
|
|
param->length, param->vary, 1);
|
|
break;
|
|
|
|
/* unaligned iso tests */
|
|
case 22:
|
|
if (dev->out_iso_pipe == 0 || param->sglen == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 22: write %d iso odd, %d entries of %d bytes\n",
|
|
param->iterations,
|
|
param->sglen, param->length);
|
|
retval = test_queue(dev, param,
|
|
dev->out_iso_pipe, dev->iso_out, 1);
|
|
break;
|
|
|
|
case 23:
|
|
if (dev->in_iso_pipe == 0 || param->sglen == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 23: read %d iso odd, %d entries of %d bytes\n",
|
|
param->iterations,
|
|
param->sglen, param->length);
|
|
retval = test_queue(dev, param,
|
|
dev->in_iso_pipe, dev->iso_in, 1);
|
|
break;
|
|
|
|
/* unlink URBs from a bulk-OUT queue */
|
|
case 24:
|
|
if (dev->out_pipe == 0 || !param->length || param->sglen < 4)
|
|
break;
|
|
retval = 0;
|
|
dev_info(&intf->dev, "TEST 24: unlink from %d queues of "
|
|
"%d %d-byte writes\n",
|
|
param->iterations, param->sglen, param->length);
|
|
for (i = param->iterations; retval == 0 && i > 0; --i) {
|
|
retval = unlink_queued(dev, dev->out_pipe,
|
|
param->sglen, param->length);
|
|
if (retval) {
|
|
dev_err(&intf->dev,
|
|
"unlink queued writes failed %d, "
|
|
"iterations left %d\n", retval, i);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* Simple non-queued interrupt I/O tests */
|
|
case 25:
|
|
if (dev->out_int_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 25: write %d bytes %u times\n",
|
|
param->length, param->iterations);
|
|
urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,
|
|
dev->int_out->bInterval);
|
|
if (!urb) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: interrupt sink (maybe accepts short writes) */
|
|
retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");
|
|
simple_free_urb(urb);
|
|
break;
|
|
case 26:
|
|
if (dev->in_int_pipe == 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 26: read %d bytes %u times\n",
|
|
param->length, param->iterations);
|
|
urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,
|
|
dev->int_in->bInterval);
|
|
if (!urb) {
|
|
retval = -ENOMEM;
|
|
break;
|
|
}
|
|
/* FIRMWARE: interrupt source (maybe generates short writes) */
|
|
retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
|
|
simple_free_urb(urb);
|
|
break;
|
|
case 27:
|
|
/* We do performance test, so ignore data compare */
|
|
if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 27: bulk write %dMbytes\n", (param->iterations *
|
|
param->sglen * param->length) / (1024 * 1024));
|
|
retval = test_queue(dev, param,
|
|
dev->out_pipe, NULL, 0);
|
|
break;
|
|
case 28:
|
|
if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
|
|
break;
|
|
dev_info(&intf->dev,
|
|
"TEST 28: bulk read %dMbytes\n", (param->iterations *
|
|
param->sglen * param->length) / (1024 * 1024));
|
|
retval = test_queue(dev, param,
|
|
dev->in_pipe, NULL, 0);
|
|
break;
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
/* We only have this one interface to user space, through usbfs.
|
|
* User mode code can scan usbfs to find N different devices (maybe on
|
|
* different busses) to use when testing, and allocate one thread per
|
|
* test. So discovery is simplified, and we have no device naming issues.
|
|
*
|
|
* Don't use these only as stress/load tests. Use them along with with
|
|
* other USB bus activity: plugging, unplugging, mousing, mp3 playback,
|
|
* video capture, and so on. Run different tests at different times, in
|
|
* different sequences. Nothing here should interact with other devices,
|
|
* except indirectly by consuming USB bandwidth and CPU resources for test
|
|
* threads and request completion. But the only way to know that for sure
|
|
* is to test when HC queues are in use by many devices.
|
|
*
|
|
* WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
|
|
* it locks out usbcore in certain code paths. Notably, if you disconnect
|
|
* the device-under-test, hub_wq will wait block forever waiting for the
|
|
* ioctl to complete ... so that usb_disconnect() can abort the pending
|
|
* urbs and then call usbtest_disconnect(). To abort a test, you're best
|
|
* off just killing the userspace task and waiting for it to exit.
|
|
*/
|
|
|
|
static int
|
|
usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
|
|
{
|
|
|
|
struct usbtest_dev *dev = usb_get_intfdata(intf);
|
|
struct usbtest_param_64 *param_64 = buf;
|
|
struct usbtest_param_32 temp;
|
|
struct usbtest_param_32 *param_32 = buf;
|
|
struct timespec64 start;
|
|
struct timespec64 end;
|
|
struct timespec64 duration;
|
|
int retval = -EOPNOTSUPP;
|
|
|
|
/* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
|
|
|
|
pattern = mod_pattern;
|
|
|
|
if (mutex_lock_interruptible(&dev->lock))
|
|
return -ERESTARTSYS;
|
|
|
|
/* FIXME: What if a system sleep starts while a test is running? */
|
|
|
|
/* some devices, like ez-usb default devices, need a non-default
|
|
* altsetting to have any active endpoints. some tests change
|
|
* altsettings; force a default so most tests don't need to check.
|
|
*/
|
|
if (dev->info->alt >= 0) {
|
|
if (intf->altsetting->desc.bInterfaceNumber) {
|
|
retval = -ENODEV;
|
|
goto free_mutex;
|
|
}
|
|
retval = set_altsetting(dev, dev->info->alt);
|
|
if (retval) {
|
|
dev_err(&intf->dev,
|
|
"set altsetting to %d failed, %d\n",
|
|
dev->info->alt, retval);
|
|
goto free_mutex;
|
|
}
|
|
}
|
|
|
|
switch (code) {
|
|
case USBTEST_REQUEST_64:
|
|
temp.test_num = param_64->test_num;
|
|
temp.iterations = param_64->iterations;
|
|
temp.length = param_64->length;
|
|
temp.sglen = param_64->sglen;
|
|
temp.vary = param_64->vary;
|
|
param_32 = &temp;
|
|
break;
|
|
|
|
case USBTEST_REQUEST_32:
|
|
break;
|
|
|
|
default:
|
|
retval = -EOPNOTSUPP;
|
|
goto free_mutex;
|
|
}
|
|
|
|
ktime_get_ts64(&start);
|
|
|
|
retval = usbtest_do_ioctl(intf, param_32);
|
|
if (retval < 0)
|
|
goto free_mutex;
|
|
|
|
ktime_get_ts64(&end);
|
|
|
|
duration = timespec64_sub(end, start);
|
|
|
|
temp.duration_sec = duration.tv_sec;
|
|
temp.duration_usec = duration.tv_nsec/NSEC_PER_USEC;
|
|
|
|
switch (code) {
|
|
case USBTEST_REQUEST_32:
|
|
param_32->duration_sec = temp.duration_sec;
|
|
param_32->duration_usec = temp.duration_usec;
|
|
break;
|
|
|
|
case USBTEST_REQUEST_64:
|
|
param_64->duration_sec = temp.duration_sec;
|
|
param_64->duration_usec = temp.duration_usec;
|
|
break;
|
|
}
|
|
|
|
free_mutex:
|
|
mutex_unlock(&dev->lock);
|
|
return retval;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static unsigned force_interrupt;
|
|
module_param(force_interrupt, uint, 0);
|
|
MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
|
|
|
|
#ifdef GENERIC
|
|
static unsigned short vendor;
|
|
module_param(vendor, ushort, 0);
|
|
MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
|
|
|
|
static unsigned short product;
|
|
module_param(product, ushort, 0);
|
|
MODULE_PARM_DESC(product, "product code (from vendor)");
|
|
#endif
|
|
|
|
static int
|
|
usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *udev;
|
|
struct usbtest_dev *dev;
|
|
struct usbtest_info *info;
|
|
char *rtest, *wtest;
|
|
char *irtest, *iwtest;
|
|
char *intrtest, *intwtest;
|
|
|
|
udev = interface_to_usbdev(intf);
|
|
|
|
#ifdef GENERIC
|
|
/* specify devices by module parameters? */
|
|
if (id->match_flags == 0) {
|
|
/* vendor match required, product match optional */
|
|
if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
|
|
return -ENODEV;
|
|
if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
|
|
return -ENODEV;
|
|
dev_info(&intf->dev, "matched module params, "
|
|
"vend=0x%04x prod=0x%04x\n",
|
|
le16_to_cpu(udev->descriptor.idVendor),
|
|
le16_to_cpu(udev->descriptor.idProduct));
|
|
}
|
|
#endif
|
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
info = (struct usbtest_info *) id->driver_info;
|
|
dev->info = info;
|
|
mutex_init(&dev->lock);
|
|
|
|
dev->intf = intf;
|
|
|
|
/* cacheline-aligned scratch for i/o */
|
|
dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
|
|
if (dev->buf == NULL) {
|
|
kfree(dev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* NOTE this doesn't yet test the handful of difference that are
|
|
* visible with high speed interrupts: bigger maxpacket (1K) and
|
|
* "high bandwidth" modes (up to 3 packets/uframe).
|
|
*/
|
|
rtest = wtest = "";
|
|
irtest = iwtest = "";
|
|
intrtest = intwtest = "";
|
|
if (force_interrupt || udev->speed == USB_SPEED_LOW) {
|
|
if (info->ep_in) {
|
|
dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
|
|
rtest = " intr-in";
|
|
}
|
|
if (info->ep_out) {
|
|
dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
|
|
wtest = " intr-out";
|
|
}
|
|
} else {
|
|
if (override_alt >= 0 || info->autoconf) {
|
|
int status;
|
|
|
|
status = get_endpoints(dev, intf);
|
|
if (status < 0) {
|
|
WARNING(dev, "couldn't get endpoints, %d\n",
|
|
status);
|
|
kfree(dev->buf);
|
|
kfree(dev);
|
|
return status;
|
|
}
|
|
/* may find bulk or ISO pipes */
|
|
} else {
|
|
if (info->ep_in)
|
|
dev->in_pipe = usb_rcvbulkpipe(udev,
|
|
info->ep_in);
|
|
if (info->ep_out)
|
|
dev->out_pipe = usb_sndbulkpipe(udev,
|
|
info->ep_out);
|
|
}
|
|
if (dev->in_pipe)
|
|
rtest = " bulk-in";
|
|
if (dev->out_pipe)
|
|
wtest = " bulk-out";
|
|
if (dev->in_iso_pipe)
|
|
irtest = " iso-in";
|
|
if (dev->out_iso_pipe)
|
|
iwtest = " iso-out";
|
|
if (dev->in_int_pipe)
|
|
intrtest = " int-in";
|
|
if (dev->out_int_pipe)
|
|
intwtest = " int-out";
|
|
}
|
|
|
|
usb_set_intfdata(intf, dev);
|
|
dev_info(&intf->dev, "%s\n", info->name);
|
|
dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n",
|
|
usb_speed_string(udev->speed),
|
|
info->ctrl_out ? " in/out" : "",
|
|
rtest, wtest,
|
|
irtest, iwtest,
|
|
intrtest, intwtest,
|
|
info->alt >= 0 ? " (+alt)" : "");
|
|
return 0;
|
|
}
|
|
|
|
static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int usbtest_resume(struct usb_interface *intf)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void usbtest_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct usbtest_dev *dev = usb_get_intfdata(intf);
|
|
|
|
usb_set_intfdata(intf, NULL);
|
|
dev_dbg(&intf->dev, "disconnect\n");
|
|
kfree(dev);
|
|
}
|
|
|
|
/* Basic testing only needs a device that can source or sink bulk traffic.
|
|
* Any device can test control transfers (default with GENERIC binding).
|
|
*
|
|
* Several entries work with the default EP0 implementation that's built
|
|
* into EZ-USB chips. There's a default vendor ID which can be overridden
|
|
* by (very) small config EEPROMS, but otherwise all these devices act
|
|
* identically until firmware is loaded: only EP0 works. It turns out
|
|
* to be easy to make other endpoints work, without modifying that EP0
|
|
* behavior. For now, we expect that kind of firmware.
|
|
*/
|
|
|
|
/* an21xx or fx versions of ez-usb */
|
|
static struct usbtest_info ez1_info = {
|
|
.name = "EZ-USB device",
|
|
.ep_in = 2,
|
|
.ep_out = 2,
|
|
.alt = 1,
|
|
};
|
|
|
|
/* fx2 version of ez-usb */
|
|
static struct usbtest_info ez2_info = {
|
|
.name = "FX2 device",
|
|
.ep_in = 6,
|
|
.ep_out = 2,
|
|
.alt = 1,
|
|
};
|
|
|
|
/* ezusb family device with dedicated usb test firmware,
|
|
*/
|
|
static struct usbtest_info fw_info = {
|
|
.name = "usb test device",
|
|
.ep_in = 2,
|
|
.ep_out = 2,
|
|
.alt = 1,
|
|
.autoconf = 1, /* iso and ctrl_out need autoconf */
|
|
.ctrl_out = 1,
|
|
.iso = 1, /* iso_ep's are #8 in/out */
|
|
};
|
|
|
|
/* peripheral running Linux and 'zero.c' test firmware, or
|
|
* its user-mode cousin. different versions of this use
|
|
* different hardware with the same vendor/product codes.
|
|
* host side MUST rely on the endpoint descriptors.
|
|
*/
|
|
static struct usbtest_info gz_info = {
|
|
.name = "Linux gadget zero",
|
|
.autoconf = 1,
|
|
.ctrl_out = 1,
|
|
.iso = 1,
|
|
.intr = 1,
|
|
.alt = 0,
|
|
};
|
|
|
|
static struct usbtest_info um_info = {
|
|
.name = "Linux user mode test driver",
|
|
.autoconf = 1,
|
|
.alt = -1,
|
|
};
|
|
|
|
static struct usbtest_info um2_info = {
|
|
.name = "Linux user mode ISO test driver",
|
|
.autoconf = 1,
|
|
.iso = 1,
|
|
.alt = -1,
|
|
};
|
|
|
|
#ifdef IBOT2
|
|
/* this is a nice source of high speed bulk data;
|
|
* uses an FX2, with firmware provided in the device
|
|
*/
|
|
static struct usbtest_info ibot2_info = {
|
|
.name = "iBOT2 webcam",
|
|
.ep_in = 2,
|
|
.alt = -1,
|
|
};
|
|
#endif
|
|
|
|
#ifdef GENERIC
|
|
/* we can use any device to test control traffic */
|
|
static struct usbtest_info generic_info = {
|
|
.name = "Generic USB device",
|
|
.alt = -1,
|
|
};
|
|
#endif
|
|
|
|
|
|
static const struct usb_device_id id_table[] = {
|
|
|
|
/*-------------------------------------------------------------*/
|
|
|
|
/* EZ-USB devices which download firmware to replace (or in our
|
|
* case augment) the default device implementation.
|
|
*/
|
|
|
|
/* generic EZ-USB FX controller */
|
|
{ USB_DEVICE(0x0547, 0x2235),
|
|
.driver_info = (unsigned long) &ez1_info,
|
|
},
|
|
|
|
/* CY3671 development board with EZ-USB FX */
|
|
{ USB_DEVICE(0x0547, 0x0080),
|
|
.driver_info = (unsigned long) &ez1_info,
|
|
},
|
|
|
|
/* generic EZ-USB FX2 controller (or development board) */
|
|
{ USB_DEVICE(0x04b4, 0x8613),
|
|
.driver_info = (unsigned long) &ez2_info,
|
|
},
|
|
|
|
/* re-enumerated usb test device firmware */
|
|
{ USB_DEVICE(0xfff0, 0xfff0),
|
|
.driver_info = (unsigned long) &fw_info,
|
|
},
|
|
|
|
/* "Gadget Zero" firmware runs under Linux */
|
|
{ USB_DEVICE(0x0525, 0xa4a0),
|
|
.driver_info = (unsigned long) &gz_info,
|
|
},
|
|
|
|
/* so does a user-mode variant */
|
|
{ USB_DEVICE(0x0525, 0xa4a4),
|
|
.driver_info = (unsigned long) &um_info,
|
|
},
|
|
|
|
/* ... and a user-mode variant that talks iso */
|
|
{ USB_DEVICE(0x0525, 0xa4a3),
|
|
.driver_info = (unsigned long) &um2_info,
|
|
},
|
|
|
|
#ifdef KEYSPAN_19Qi
|
|
/* Keyspan 19qi uses an21xx (original EZ-USB) */
|
|
/* this does not coexist with the real Keyspan 19qi driver! */
|
|
{ USB_DEVICE(0x06cd, 0x010b),
|
|
.driver_info = (unsigned long) &ez1_info,
|
|
},
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------*/
|
|
|
|
#ifdef IBOT2
|
|
/* iBOT2 makes a nice source of high speed bulk-in data */
|
|
/* this does not coexist with a real iBOT2 driver! */
|
|
{ USB_DEVICE(0x0b62, 0x0059),
|
|
.driver_info = (unsigned long) &ibot2_info,
|
|
},
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------*/
|
|
|
|
#ifdef GENERIC
|
|
/* module params can specify devices to use for control tests */
|
|
{ .driver_info = (unsigned long) &generic_info, },
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------*/
|
|
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(usb, id_table);
|
|
|
|
static struct usb_driver usbtest_driver = {
|
|
.name = "usbtest",
|
|
.id_table = id_table,
|
|
.probe = usbtest_probe,
|
|
.unlocked_ioctl = usbtest_ioctl,
|
|
.disconnect = usbtest_disconnect,
|
|
.suspend = usbtest_suspend,
|
|
.resume = usbtest_resume,
|
|
};
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int __init usbtest_init(void)
|
|
{
|
|
#ifdef GENERIC
|
|
if (vendor)
|
|
pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
|
|
#endif
|
|
return usb_register(&usbtest_driver);
|
|
}
|
|
module_init(usbtest_init);
|
|
|
|
static void __exit usbtest_exit(void)
|
|
{
|
|
usb_deregister(&usbtest_driver);
|
|
}
|
|
module_exit(usbtest_exit);
|
|
|
|
MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
|
|
MODULE_LICENSE("GPL");
|
|
|