if (report_enum->report_id_hash[id])
return report_enum->report_id_hash[id];
- if (!(report = kmalloc(sizeof(struct hid_report), GFP_KERNEL)))
+ if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
return NULL;
- memset(report, 0, sizeof(struct hid_report));
if (id != 0)
report_enum->numbered = 1;
return NULL;
}
- if (!(field = kmalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
+ if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
+ values * sizeof(unsigned), GFP_KERNEL))) return NULL;
- memset(field, 0, sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
- + values * sizeof(unsigned));
-
field->index = report->maxfield++;
report->field[field->index] = field;
field->usage = (struct hid_usage *)(field + 1);
hid_parser_reserved
};
- if (!(device = kmalloc(sizeof(struct hid_device), GFP_KERNEL)))
+ if (!(device = kzalloc(sizeof(struct hid_device), GFP_KERNEL)))
return NULL;
- memset(device, 0, sizeof(struct hid_device));
- if (!(device->collection = kmalloc(sizeof(struct hid_collection) *
+ if (!(device->collection = kzalloc(sizeof(struct hid_collection) *
HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
kfree(device);
return NULL;
}
- memset(device->collection, 0, sizeof(struct hid_collection) *
- HID_DEFAULT_NUM_COLLECTIONS);
device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
for (i = 0; i < HID_REPORT_TYPES; i++)
memcpy(device->rdesc, start, size);
device->rsize = size;
- if (!(parser = kmalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
+ if (!(parser = kzalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
kfree(device->rdesc);
kfree(device->collection);
kfree(device);
return NULL;
}
- memset(parser, 0, sizeof(struct hid_parser));
parser->device = device;
end = start + size;
return 0;
}
+/*
+ * Input submission and I/O error handler.
+ */
+
+static void hid_io_error(struct hid_device *hid);
+
+/* Start up the input URB */
+static int hid_start_in(struct hid_device *hid)
+{
+ unsigned long flags;
+ int rc = 0;
+
+ spin_lock_irqsave(&hid->inlock, flags);
+ if (hid->open > 0 && !test_bit(HID_SUSPENDED, &hid->iofl) &&
+ !test_and_set_bit(HID_IN_RUNNING, &hid->iofl)) {
+ rc = usb_submit_urb(hid->urbin, GFP_ATOMIC);
+ if (rc != 0)
+ clear_bit(HID_IN_RUNNING, &hid->iofl);
+ }
+ spin_unlock_irqrestore(&hid->inlock, flags);
+ return rc;
+}
+
+/* I/O retry timer routine */
+static void hid_retry_timeout(unsigned long _hid)
+{
+ struct hid_device *hid = (struct hid_device *) _hid;
+
+ dev_dbg(&hid->intf->dev, "retrying intr urb\n");
+ if (hid_start_in(hid))
+ hid_io_error(hid);
+}
+
+/* Workqueue routine to reset the device */
+static void hid_reset(void *_hid)
+{
+ struct hid_device *hid = (struct hid_device *) _hid;
+ int rc_lock, rc;
+
+ dev_dbg(&hid->intf->dev, "resetting device\n");
+ rc = rc_lock = usb_lock_device_for_reset(hid->dev, hid->intf);
+ if (rc_lock >= 0) {
+ rc = usb_reset_device(hid->dev);
+ if (rc_lock)
+ usb_unlock_device(hid->dev);
+ }
+ clear_bit(HID_RESET_PENDING, &hid->iofl);
+
+ if (rc == 0) {
+ hid->retry_delay = 0;
+ if (hid_start_in(hid))
+ hid_io_error(hid);
+ } else if (!(rc == -ENODEV || rc == -EHOSTUNREACH || rc == -EINTR))
+ err("can't reset device, %s-%s/input%d, status %d",
+ hid->dev->bus->bus_name,
+ hid->dev->devpath,
+ hid->ifnum, rc);
+}
+
+/* Main I/O error handler */
+static void hid_io_error(struct hid_device *hid)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&hid->inlock, flags);
+
+ /* Stop when disconnected */
+ if (usb_get_intfdata(hid->intf) == NULL)
+ goto done;
+
+ /* When an error occurs, retry at increasing intervals */
+ if (hid->retry_delay == 0) {
+ hid->retry_delay = 13; /* Then 26, 52, 104, 104, ... */
+ hid->stop_retry = jiffies + msecs_to_jiffies(1000);
+ } else if (hid->retry_delay < 100)
+ hid->retry_delay *= 2;
+
+ if (time_after(jiffies, hid->stop_retry)) {
+
+ /* Retries failed, so do a port reset */
+ if (!test_and_set_bit(HID_RESET_PENDING, &hid->iofl)) {
+ if (schedule_work(&hid->reset_work))
+ goto done;
+ clear_bit(HID_RESET_PENDING, &hid->iofl);
+ }
+ }
+
+ mod_timer(&hid->io_retry,
+ jiffies + msecs_to_jiffies(hid->retry_delay));
+done:
+ spin_unlock_irqrestore(&hid->inlock, flags);
+}
+
/*
* Input interrupt completion handler.
*/
switch (urb->status) {
case 0: /* success */
+ hid->retry_delay = 0;
hid_input_report(HID_INPUT_REPORT, urb, 1, regs);
break;
case -ECONNRESET: /* unlink */
case -ENOENT:
- case -EPERM:
case -ESHUTDOWN: /* unplug */
- case -EILSEQ: /* unplug timeout on uhci */
+ clear_bit(HID_IN_RUNNING, &hid->iofl);
return;
+ case -EILSEQ: /* protocol error or unplug */
+ case -EPROTO: /* protocol error or unplug */
case -ETIMEDOUT: /* NAK */
- break;
+ clear_bit(HID_IN_RUNNING, &hid->iofl);
+ hid_io_error(hid);
+ return;
default: /* error */
warn("input irq status %d received", urb->status);
}
status = usb_submit_urb(urb, SLAB_ATOMIC);
- if (status)
- err("can't resubmit intr, %s-%s/input%d, status %d",
- hid->dev->bus->bus_name, hid->dev->devpath,
- hid->ifnum, status);
+ if (status) {
+ clear_bit(HID_IN_RUNNING, &hid->iofl);
+ if (status != -EPERM) {
+ err("can't resubmit intr, %s-%s/input%d, status %d",
+ hid->dev->bus->bus_name,
+ hid->dev->devpath,
+ hid->ifnum, status);
+ hid_io_error(hid);
+ }
+ }
}
/*
case 0: /* success */
break;
case -ESHUTDOWN: /* unplug */
- case -EILSEQ: /* unplug timeout on uhci */
unplug = 1;
+ case -EILSEQ: /* protocol error or unplug */
+ case -EPROTO: /* protocol error or unplug */
case -ECONNRESET: /* unlink */
case -ENOENT:
break;
hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0, regs);
break;
case -ESHUTDOWN: /* unplug */
- case -EILSEQ: /* unplug timectrl on uhci */
unplug = 1;
+ case -EILSEQ: /* protocol error or unplug */
+ case -EPROTO: /* protocol error or unplug */
case -ECONNRESET: /* unlink */
case -ENOENT:
case -EPIPE: /* report not available */
int hid_open(struct hid_device *hid)
{
- if (hid->open++)
- return 0;
-
- hid->urbin->dev = hid->dev;
-
- if (usb_submit_urb(hid->urbin, GFP_KERNEL))
- return -EIO;
-
+ ++hid->open;
+ if (hid_start_in(hid))
+ hid_io_error(hid);
return 0;
}
#define USB_VENDOR_ID_WISEGROUP 0x0925
#define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
#define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
+#define USB_DEVICE_ID_DUAL_USB_JOYPAD 0x8866
#define USB_VENDOR_ID_CODEMERCS 0x07c0
#define USB_DEVICE_ID_CODEMERCS_IOW40 0x1500
#define USB_VENDOR_ID_HP 0x03f0
#define USB_DEVICE_ID_HP_USBHUB_KB 0x020c
+#define USB_VENDOR_ID_CREATIVELABS 0x062a
+#define USB_DEVICE_ID_CREATIVELABS_SILVERCREST 0x0201
+
/*
* Alphabetically sorted blacklist by quirk type.
*/
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_KEYBOARD, HID_QUIRK_NOGET},
{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_USBHUB_KB, HID_QUIRK_NOGET},
+ { USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVELABS_SILVERCREST, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_HP, USB_DEVICE_ID_HP_USBHUB_KB, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_POWERMOUSE, HID_QUIRK_2WHEEL_POWERMOUSE },
{ USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 },
init_waitqueue_head(&hid->wait);
+ INIT_WORK(&hid->reset_work, hid_reset, hid);
+ setup_timer(&hid->io_retry, hid_retry_timeout, (unsigned long) hid);
+
+ spin_lock_init(&hid->inlock);
spin_lock_init(&hid->outlock);
spin_lock_init(&hid->ctrllock);
if (!hid)
return;
+ spin_lock_irq(&hid->inlock); /* Sync with error handler */
usb_set_intfdata(intf, NULL);
+ spin_unlock_irq(&hid->inlock);
usb_kill_urb(hid->urbin);
usb_kill_urb(hid->urbout);
usb_kill_urb(hid->urbctrl);
+ del_timer_sync(&hid->io_retry);
+ flush_scheduled_work();
+
if (hid->claimed & HID_CLAIMED_INPUT)
hidinput_disconnect(hid);
if (hid->claimed & HID_CLAIMED_HIDDEV)
{
struct hid_device *hid = usb_get_intfdata (intf);
+ spin_lock_irq(&hid->inlock); /* Sync with error handler */
+ set_bit(HID_SUSPENDED, &hid->iofl);
+ spin_unlock_irq(&hid->inlock);
+ del_timer(&hid->io_retry);
usb_kill_urb(hid->urbin);
dev_dbg(&intf->dev, "suspend\n");
return 0;
struct hid_device *hid = usb_get_intfdata (intf);
int status;
- if (hid->open)
- status = usb_submit_urb(hid->urbin, GFP_NOIO);
- else
- status = 0;
+ clear_bit(HID_SUSPENDED, &hid->iofl);
+ status = hid_start_in(hid);
dev_dbg(&intf->dev, "resume status %d\n", status);
return status;
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff