resumed */
unsigned long removed_bits[1]; /* ports with a "removed"
device present */
+ unsigned long wakeup_bits[1]; /* ports that have signaled
+ remote wakeup */
#if USB_MAXCHILDREN > 31 /* 8*sizeof(unsigned long) - 1 */
#error event_bits[] is too short!
#endif
kick_khubd(hub);
}
+ /*
+ * Let the USB core know that a USB 3.0 device has sent a Function Wake Device
+ * Notification, which indicates it had initiated remote wakeup.
+ *
+ * USB 3.0 hubs do not report the port link state change from U3 to U0 when the
+ * device initiates resume, so the USB core will not receive notice of the
+ * resume through the normal hub interrupt URB.
+ */
+ void usb_wakeup_notification(struct usb_device *hdev,
+ unsigned int portnum)
+ {
+ struct usb_hub *hub;
+
+ if (!hdev)
+ return;
+
+ hub = hdev_to_hub(hdev);
+ if (hub) {
+ set_bit(portnum, hub->wakeup_bits);
+ kick_khubd(hub);
+ }
+ }
+ EXPORT_SYMBOL_GPL(usb_wakeup_notification);
/* completion function, fires on port status changes and various faults */
static void hub_irq(struct urb *urb)
if (type == HUB_INIT3)
goto init3;
- /* After a resume, port power should still be on.
+ /* The superspeed hub except for root hub has to use Hub Depth
+ * value as an offset into the route string to locate the bits
+ * it uses to determine the downstream port number. So hub driver
+ * should send a set hub depth request to superspeed hub after
+ * the superspeed hub is set configuration in initialization or
+ * reset procedure.
+ *
+ * After a resume, port power should still be on.
* For any other type of activation, turn it on.
*/
if (type != HUB_RESUME) {
+ if (hdev->parent && hub_is_superspeed(hdev)) {
+ ret = usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
+ HUB_SET_DEPTH, USB_RT_HUB,
+ hdev->level - 1, 0, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+ if (ret < 0)
+ dev_err(hub->intfdev,
+ "set hub depth failed\n");
+ }
/* Speed up system boot by using a delayed_work for the
* hub's initial power-up delays. This is pretty awkward
clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_ENABLE);
}
- if (portchange & USB_PORT_STAT_C_LINK_STATE) {
- need_debounce_delay = true;
- clear_port_feature(hub->hdev, port1,
- USB_PORT_FEAT_C_PORT_LINK_STATE);
- }
-
if ((portchange & USB_PORT_STAT_C_BH_RESET) &&
hub_is_superspeed(hub->hdev)) {
need_debounce_delay = true;
set_bit(port1, hub->change_bits);
} else if (portstatus & USB_PORT_STAT_ENABLE) {
+ bool port_resumed = (portstatus &
+ USB_PORT_STAT_LINK_STATE) ==
+ USB_SS_PORT_LS_U0;
/* The power session apparently survived the resume.
* If there was an overcurrent or suspend change
* (i.e., remote wakeup request), have khubd
- * take care of it.
+ * take care of it. Look at the port link state
+ * for USB 3.0 hubs, since they don't have a suspend
+ * change bit, and they don't set the port link change
+ * bit on device-initiated resume.
*/
- if (portchange)
+ if (portchange || (hub_is_superspeed(hub->hdev) &&
+ port_resumed))
set_bit(port1, hub->change_bits);
} else if (udev->persist_enabled) {
goto fail;
}
- if (hub_is_superspeed(hdev) && (hdev->parent != NULL)) {
- ret = usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
- HUB_SET_DEPTH, USB_RT_HUB,
- hdev->level - 1, 0, NULL, 0,
- USB_CTRL_SET_TIMEOUT);
-
- if (ret < 0) {
- message = "can't set hub depth";
- goto fail;
- }
- }
-
/* Request the entire hub descriptor.
* hub->descriptor can handle USB_MAXCHILDREN ports,
* but the hub can/will return fewer bytes here.
desc = intf->cur_altsetting;
hdev = interface_to_usbdev(intf);
- /* Hubs have proper suspend/resume support. USB 3.0 device suspend is
- * different from USB 2.0/1.1 device suspend, and unfortunately we
- * don't support it yet. So leave autosuspend disabled for USB 3.0
- * external hubs for now. Enable autosuspend for USB 3.0 roothubs,
- * since that isn't a "real" hub.
- */
- if (!hub_is_superspeed(hdev) || !hdev->parent)
- usb_enable_autosuspend(hdev);
+ /* Hubs have proper suspend/resume support. */
+ usb_enable_autosuspend(hdev);
if (hdev->level == MAX_TOPO_LEVEL) {
dev_err(&intf->dev,
return err;
}
+ static void set_usb_port_removable(struct usb_device *udev)
+ {
+ struct usb_device *hdev = udev->parent;
+ struct usb_hub *hub;
+ u8 port = udev->portnum;
+ u16 wHubCharacteristics;
+ bool removable = true;
+
+ if (!hdev)
+ return;
+
+ hub = hdev_to_hub(udev->parent);
+
+ wHubCharacteristics = le16_to_cpu(hub->descriptor->wHubCharacteristics);
+
+ if (!(wHubCharacteristics & HUB_CHAR_COMPOUND))
+ return;
+
+ if (hub_is_superspeed(hdev)) {
+ if (hub->descriptor->u.ss.DeviceRemovable & (1 << port))
+ removable = false;
+ } else {
+ if (hub->descriptor->u.hs.DeviceRemovable[port / 8] & (1 << (port % 8)))
+ removable = false;
+ }
+
+ if (removable)
+ udev->removable = USB_DEVICE_REMOVABLE;
+ else
+ udev->removable = USB_DEVICE_FIXED;
+ }
/**
* usb_new_device - perform initial device setup (usbcore-internal)
announce_device(udev);
device_enable_async_suspend(&udev->dev);
+
+ /*
+ * check whether the hub marks this port as non-removable. Do it
+ * now so that platform-specific data can override it in
+ * device_add()
+ */
+ if (udev->parent)
+ set_usb_port_removable(udev);
+
/* Register the device. The device driver is responsible
* for configuring the device and invoking the add-device
* notifier chain (used by usbfs and possibly others).
* we don't explicitly enable it here.
*/
if (udev->do_remote_wakeup) {
- status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- USB_REQ_SET_FEATURE, USB_RECIP_DEVICE,
- USB_DEVICE_REMOTE_WAKEUP, 0,
- NULL, 0,
- USB_CTRL_SET_TIMEOUT);
+ if (!hub_is_superspeed(hub->hdev)) {
+ status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ USB_REQ_SET_FEATURE, USB_RECIP_DEVICE,
+ USB_DEVICE_REMOTE_WAKEUP, 0,
+ NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+ } else {
+ /* Assume there's only one function on the USB 3.0
+ * device and enable remote wake for the first
+ * interface. FIXME if the interface association
+ * descriptor shows there's more than one function.
+ */
+ status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ USB_REQ_SET_FEATURE,
+ USB_RECIP_INTERFACE,
+ USB_INTRF_FUNC_SUSPEND,
+ USB_INTRF_FUNC_SUSPEND_RW |
+ USB_INTRF_FUNC_SUSPEND_LP,
+ NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+ }
if (status) {
dev_dbg(&udev->dev, "won't remote wakeup, status %d\n",
status);
struct usb_hub *hub = usb_get_intfdata (intf);
struct usb_device *hdev = hub->hdev;
unsigned port1;
+ int status;
/* Warn if children aren't already suspended */
for (port1 = 1; port1 <= hdev->maxchild; port1++) {
return -EBUSY;
}
}
+ if (hub_is_superspeed(hdev) && hdev->do_remote_wakeup) {
+ /* Enable hub to send remote wakeup for all ports. */
+ for (port1 = 1; port1 <= hdev->maxchild; port1++) {
+ status = set_port_feature(hdev,
+ port1 |
+ USB_PORT_FEAT_REMOTE_WAKE_CONNECT |
+ USB_PORT_FEAT_REMOTE_WAKE_DISCONNECT |
+ USB_PORT_FEAT_REMOTE_WAKE_OVER_CURRENT,
+ USB_PORT_FEAT_REMOTE_WAKE_MASK);
+ }
+ }
dev_dbg(&intf->dev, "%s\n", __func__);
hcd->driver->relinquish_port(hcd, port1);
}
+ /* Returns 1 if there was a remote wakeup and a connect status change. */
+ static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,
+ u16 portstatus, u16 portchange)
+ {
+ struct usb_device *hdev;
+ struct usb_device *udev;
+ int connect_change = 0;
+ int ret;
+
+ hdev = hub->hdev;
+ udev = hdev->children[port-1];
+ if (!hub_is_superspeed(hdev)) {
+ if (!(portchange & USB_PORT_STAT_C_SUSPEND))
+ return 0;
+ clear_port_feature(hdev, port, USB_PORT_FEAT_C_SUSPEND);
+ } else {
+ if (!udev || udev->state != USB_STATE_SUSPENDED ||
+ (portstatus & USB_PORT_STAT_LINK_STATE) !=
+ USB_SS_PORT_LS_U0)
+ return 0;
+ }
+
+ if (udev) {
+ /* TRSMRCY = 10 msec */
+ msleep(10);
+
+ usb_lock_device(udev);
+ ret = usb_remote_wakeup(udev);
+ usb_unlock_device(udev);
+ if (ret < 0)
+ connect_change = 1;
+ } else {
+ ret = -ENODEV;
+ hub_port_disable(hub, port, 1);
+ }
+ dev_dbg(hub->intfdev, "resume on port %d, status %d\n",
+ port, ret);
+ return connect_change;
+ }
+
static void hub_events(void)
{
struct list_head *tmp;
u16 portstatus;
u16 portchange;
int i, ret;
- int connect_change;
+ int connect_change, wakeup_change;
/*
* We restart the list every time to avoid a deadlock with
if (test_bit(i, hub->busy_bits))
continue;
connect_change = test_bit(i, hub->change_bits);
+ wakeup_change = test_and_clear_bit(i, hub->wakeup_bits);
if (!test_and_clear_bit(i, hub->event_bits) &&
- !connect_change)
+ !connect_change && !wakeup_change)
continue;
ret = hub_port_status(hub, i,
}
}
- if (portchange & USB_PORT_STAT_C_SUSPEND) {
- struct usb_device *udev;
+ if (hub_handle_remote_wakeup(hub, i,
+ portstatus, portchange))
+ connect_change = 1;
- clear_port_feature(hdev, i,
- USB_PORT_FEAT_C_SUSPEND);
- udev = hdev->children[i-1];
- if (udev) {
- /* TRSMRCY = 10 msec */
- msleep(10);
-
- usb_lock_device(udev);
- ret = usb_remote_wakeup(hdev->
- children[i-1]);
- usb_unlock_device(udev);
- if (ret < 0)
- connect_change = 1;
- } else {
- ret = -ENODEV;
- hub_port_disable(hub, i, 1);
- }
- dev_dbg (hub_dev,
- "resume on port %d, status %d\n",
- i, ret);
- }
-
if (portchange & USB_PORT_STAT_C_OVERCURRENT) {
u16 status = 0;
u16 unused;
}
/*
- * Convert bInterval expressed in frames (in 1-255 range) to exponent of
+ * Convert bInterval expressed in microframes (in 1-255 range) to exponent of
* microframes, rounded down to nearest power of 2.
*/
-static unsigned int xhci_parse_frame_interval(struct usb_device *udev,
- struct usb_host_endpoint *ep)
+static unsigned int xhci_microframes_to_exponent(struct usb_device *udev,
+ struct usb_host_endpoint *ep, unsigned int desc_interval,
+ unsigned int min_exponent, unsigned int max_exponent)
{
unsigned int interval;
- interval = fls(8 * ep->desc.bInterval) - 1;
- interval = clamp_val(interval, 3, 10);
- if ((1 << interval) != 8 * ep->desc.bInterval)
+ interval = fls(desc_interval) - 1;
+ interval = clamp_val(interval, min_exponent, max_exponent);
+ if ((1 << interval) != desc_interval)
dev_warn(&udev->dev,
"ep %#x - rounding interval to %d microframes, ep desc says %d microframes\n",
ep->desc.bEndpointAddress,
1 << interval,
- 8 * ep->desc.bInterval);
+ desc_interval);
return interval;
}
+static unsigned int xhci_parse_microframe_interval(struct usb_device *udev,
+ struct usb_host_endpoint *ep)
+{
+ return xhci_microframes_to_exponent(udev, ep,
+ ep->desc.bInterval, 0, 15);
+}
+
+
+static unsigned int xhci_parse_frame_interval(struct usb_device *udev,
+ struct usb_host_endpoint *ep)
+{
+ return xhci_microframes_to_exponent(udev, ep,
+ ep->desc.bInterval * 8, 3, 10);
+}
+
/* Return the polling or NAK interval.
*
* The polling interval is expressed in "microframes". If xHCI's Interval field
/* Max NAK rate */
if (usb_endpoint_xfer_control(&ep->desc) ||
usb_endpoint_xfer_bulk(&ep->desc)) {
- interval = ep->desc.bInterval;
+ interval = xhci_parse_microframe_interval(udev, ep);
break;
}
/* Fall through - SS and HS isoc/int have same decoding */
unsigned int val, val2;
u64 val_64;
struct xhci_segment *seg;
- u32 page_size;
+ u32 page_size, temp;
int i;
page_size = xhci_readl(xhci, &xhci->op_regs->page_size);
INIT_LIST_HEAD(&xhci->lpm_failed_devs);
+ /* Enable USB 3.0 device notifications for function remote wake, which
+ * is necessary for allowing USB 3.0 devices to do remote wakeup from
+ * U3 (device suspend).
+ */
+ temp = xhci_readl(xhci, &xhci->op_regs->dev_notification);
+ temp &= ~DEV_NOTE_MASK;
+ temp |= DEV_NOTE_FWAKE;
+ xhci_writel(xhci, temp, &xhci->op_regs->dev_notification);
+
return 0;
fail:
{ USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */
{ USB_DEVICE(0x16DC, 0x0012) }, /* W-IE-NE-R Plein & Baus GmbH MPOD Multi Channel Power Supply */
{ USB_DEVICE(0x16DC, 0x0015) }, /* W-IE-NE-R Plein & Baus GmbH CML Control, Monitoring and Data Logger */
+ { USB_DEVICE(0x17A8, 0x0001) }, /* Kamstrup Optical Eye/3-wire */
+ { USB_DEVICE(0x17A8, 0x0005) }, /* Kamstrup M-Bus Master MultiPort 250D */
{ USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
if (result != size) {
dbg("%s - Unable to send config request, "
- "request=0x%x size=%d result=%d\n",
+ "request=0x%x size=%d result=%d",
__func__, request, size, result);
if (result > 0)
result = -EPROTO;
if ((size > 2 && result != size) || result < 0) {
dbg("%s - Unable to send request, "
- "request=0x%x size=%d result=%d\n",
+ "request=0x%x size=%d result=%d",
__func__, request, size, result);
if (result > 0)
result = -EPROTO;
default:
dbg("cp210x driver does not "
"support the number of bits requested,"
- " using 8 bit mode\n");
+ " using 8 bit mode");
bits |= BITS_DATA_8;
break;
}
if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
dbg("Number of data bits requested "
- "not supported by device\n");
+ "not supported by device");
}
if ((cflag & (PARENB|PARODD|CMSPAR)) !=
}
}
if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
- dbg("Parity mode not supported "
- "by device\n");
+ dbg("Parity mode not supported by device");
}
if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
}
if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
dbg("Number of stop bits requested "
- "not supported by device\n");
+ "not supported by device");
}
if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
/* the array dimension is the number of default entries plus */
/* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */
/* null entry */
-static struct usb_device_id ti_id_table_3410[13+TI_EXTRA_VID_PID_COUNT+1] = {
+static struct usb_device_id ti_id_table_3410[14+TI_EXTRA_VID_PID_COUNT+1] = {
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
+ { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
};
static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = {
{ USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
};
-static struct usb_device_id ti_id_table_combined[17+2*TI_EXTRA_VID_PID_COUNT+1] = {
+static struct usb_device_id ti_id_table_combined[18+2*TI_EXTRA_VID_PID_COUNT+1] = {
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
+ { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
{ }
};
{
struct ti_port *tport = urb->context;
struct usb_serial_port *port = tport->tp_port;
- struct device *dev = &urb->dev->dev;
int status = urb->status;
dbg("%s - port %d", __func__, port->number);
wake_up_interruptible(&tport->tp_write_wait);
return;
default:
- dev_err(dev, "%s - nonzero urb status, %d\n",
+ dev_err_console(port, "%s - nonzero urb status, %d\n",
__func__, status);
tport->tp_tdev->td_urb_error = 1;
wake_up_interruptible(&tport->tp_write_wait);
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result) {
- dev_err(&port->dev, "%s - submit write urb failed, %d\n",
+ dev_err_console(port, "%s - submit write urb failed, %d\n",
__func__, result);
tport->tp_write_urb_in_use = 0;
/* TODO: reschedule ti_send */
{ } /* Terminating entry */
};
+ static struct us_unusual_dev for_dynamic_ids =
+ USUAL_DEV(USB_SC_SCSI, USB_PR_BULK, 0);
+
#undef UNUSUAL_DEV
#undef COMPLIANT_DEV
#undef USUAL_DEV
struct Scsi_Host *host = us_to_host(us);
/* If the device is really gone, cut short reset delays */
- if (us->pusb_dev->state == USB_STATE_NOTATTACHED)
+ if (us->pusb_dev->state == USB_STATE_NOTATTACHED) {
set_bit(US_FLIDX_DISCONNECTING, &us->dflags);
+ wake_up(&us->delay_wait);
+ }
- /* Prevent SCSI-scanning (if it hasn't started yet)
- * and wait for the SCSI-scanning thread to stop.
+ /* Prevent SCSI scanning (if it hasn't started yet)
+ * or wait for the SCSI-scanning routine to stop.
*/
- set_bit(US_FLIDX_DONT_SCAN, &us->dflags);
- wake_up(&us->delay_wait);
- wait_for_completion(&us->scanning_done);
+ cancel_delayed_work_sync(&us->scan_dwork);
+
+ /* Balance autopm calls if scanning was cancelled */
+ if (test_bit(US_FLIDX_SCAN_PENDING, &us->dflags))
+ usb_autopm_put_interface_no_suspend(us->pusb_intf);
/* Removing the host will perform an orderly shutdown: caches
* synchronized, disks spun down, etc.
scsi_host_put(us_to_host(us));
}
-/* Thread to carry out delayed SCSI-device scanning */
-static int usb_stor_scan_thread(void * __us)
+/* Delayed-work routine to carry out SCSI-device scanning */
+static void usb_stor_scan_dwork(struct work_struct *work)
{
- struct us_data *us = (struct us_data *)__us;
+ struct us_data *us = container_of(work, struct us_data,
+ scan_dwork.work);
struct device *dev = &us->pusb_intf->dev;
- dev_dbg(dev, "device found\n");
-
- set_freezable();
+ dev_dbg(dev, "starting scan\n");
- /*
- * Wait for the timeout to expire or for a disconnect
- *
- * We can't freeze in this thread or we risk causing khubd to
- * fail to freeze, but we can't be non-freezable either. Nor can
- * khubd freeze while waiting for scanning to complete as it may
- * hold the device lock, causing a hang when suspending devices.
- * So instead of using wait_event_freezable(), explicitly test
- * for (DONT_SCAN || freezing) in interruptible wait and proceed
- * if any of DONT_SCAN, freezing or timeout has happened.
- */
- if (delay_use > 0) {
- dev_dbg(dev, "waiting for device to settle "
- "before scanning\n");
- wait_event_interruptible_timeout(us->delay_wait,
- test_bit(US_FLIDX_DONT_SCAN, &us->dflags) ||
- freezing(current), delay_use * HZ);
+ /* For bulk-only devices, determine the max LUN value */
+ if (us->protocol == USB_PR_BULK && !(us->fflags & US_FL_SINGLE_LUN)) {
+ mutex_lock(&us->dev_mutex);
+ us->max_lun = usb_stor_Bulk_max_lun(us);
+ mutex_unlock(&us->dev_mutex);
}
+ scsi_scan_host(us_to_host(us));
+ dev_dbg(dev, "scan complete\n");
- /* If the device is still connected, perform the scanning */
- if (!test_bit(US_FLIDX_DONT_SCAN, &us->dflags)) {
-
- /* For bulk-only devices, determine the max LUN value */
- if (us->protocol == USB_PR_BULK &&
- !(us->fflags & US_FL_SINGLE_LUN)) {
- mutex_lock(&us->dev_mutex);
- us->max_lun = usb_stor_Bulk_max_lun(us);
- mutex_unlock(&us->dev_mutex);
- }
- scsi_scan_host(us_to_host(us));
- dev_dbg(dev, "scan complete\n");
-
- /* Should we unbind if no devices were detected? */
- }
+ /* Should we unbind if no devices were detected? */
usb_autopm_put_interface(us->pusb_intf);
- complete_and_exit(&us->scanning_done, 0);
+ clear_bit(US_FLIDX_SCAN_PENDING, &us->dflags);
}
static unsigned int usb_stor_sg_tablesize(struct usb_interface *intf)
init_completion(&us->cmnd_ready);
init_completion(&(us->notify));
init_waitqueue_head(&us->delay_wait);
- init_completion(&us->scanning_done);
+ INIT_DELAYED_WORK(&us->scan_dwork, usb_stor_scan_dwork);
/* Associate the us_data structure with the USB device */
result = associate_dev(us, intf);
/* Second part of general USB mass-storage probing */
int usb_stor_probe2(struct us_data *us)
{
- struct task_struct *th;
int result;
struct device *dev = &us->pusb_intf->dev;
goto BadDevice;
}
- /* Start up the thread for delayed SCSI-device scanning */
- th = kthread_create(usb_stor_scan_thread, us, "usb-stor-scan");
- if (IS_ERR(th)) {
- dev_warn(dev,
- "Unable to start the device-scanning thread\n");
- complete(&us->scanning_done);
- quiesce_and_remove_host(us);
- result = PTR_ERR(th);
- goto BadDevice;
- }
-
+ /* Submit the delayed_work for SCSI-device scanning */
usb_autopm_get_interface_no_resume(us->pusb_intf);
- wake_up_process(th);
+ set_bit(US_FLIDX_SCAN_PENDING, &us->dflags);
+ if (delay_use > 0)
+ dev_dbg(dev, "waiting for device to settle before scanning\n");
+ queue_delayed_work(system_freezable_wq, &us->scan_dwork,
+ delay_use * HZ);
return 0;
/* We come here if there are any problems */
static int storage_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
+ struct us_unusual_dev *unusual_dev;
struct us_data *us;
int result;
+ int size;
/*
* If libusual is configured, let it decide whether a standard
* table, so we use the index of the id entry to find the
* corresponding unusual_devs entry.
*/
- result = usb_stor_probe1(&us, intf, id,
- (id - usb_storage_usb_ids) + us_unusual_dev_list);
+
+ size = ARRAY_SIZE(us_unusual_dev_list);
+ if (id >= usb_storage_usb_ids && id < usb_storage_usb_ids + size) {
+ unusual_dev = (id - usb_storage_usb_ids) + us_unusual_dev_list;
+ } else {
+ unusual_dev = &for_dynamic_ids;
+
+ US_DEBUGP("%s %s 0x%04x 0x%04x\n", "Use Bulk-Only transport",
+ "with the Transparent SCSI protocol for dynamic id:",
+ id->idVendor, id->idProduct);
+ }
+
+ result = usb_stor_probe1(&us, intf, id, unusual_dev);
if (result)
return result;
.id_table = usb_storage_usb_ids,
.supports_autosuspend = 1,
.soft_unbind = 1,
- .no_dynamic_id = 1,
};
static int __init usb_stor_init(void)
projects / karo-tx-linux.git / commitdiff