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path: root/drivers/usb/core/hub.c
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Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r--drivers/usb/core/hub.c70
1 files changed, 37 insertions, 33 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 73dfa194160b..431839bd291f 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -50,8 +50,8 @@ DEFINE_MUTEX(usb_port_peer_mutex);
/* cycle leds on hubs that aren't blinking for attention */
static bool blinkenlights = 0;
-module_param (blinkenlights, bool, S_IRUGO);
-MODULE_PARM_DESC (blinkenlights, "true to cycle leds on hubs");
+module_param(blinkenlights, bool, S_IRUGO);
+MODULE_PARM_DESC(blinkenlights, "true to cycle leds on hubs");
/*
* Device SATA8000 FW1.0 from DATAST0R Technology Corp requires about
@@ -439,7 +439,7 @@ static void set_port_led(struct usb_hub *hub, int port1, int selector)
#define LED_CYCLE_PERIOD ((2*HZ)/3)
-static void led_work (struct work_struct *work)
+static void led_work(struct work_struct *work)
{
struct usb_hub *hub =
container_of(work, struct usb_hub, leds.work);
@@ -646,7 +646,7 @@ static void hub_irq(struct urb *urb)
default: /* presumably an error */
/* Cause a hub reset after 10 consecutive errors */
- dev_dbg (hub->intfdev, "transfer --> %d\n", status);
+ dev_dbg(hub->intfdev, "transfer --> %d\n", status);
if ((++hub->nerrors < 10) || hub->error)
goto resubmit;
hub->error = status;
@@ -671,14 +671,14 @@ resubmit:
if (hub->quiescing)
return;
- if ((status = usb_submit_urb (hub->urb, GFP_ATOMIC)) != 0
- && status != -ENODEV && status != -EPERM)
- dev_err (hub->intfdev, "resubmit --> %d\n", status);
+ status = usb_submit_urb(hub->urb, GFP_ATOMIC);
+ if (status != 0 && status != -ENODEV && status != -EPERM)
+ dev_err(hub->intfdev, "resubmit --> %d\n", status);
}
/* USB 2.0 spec Section 11.24.2.3 */
static inline int
-hub_clear_tt_buffer (struct usb_device *hdev, u16 devinfo, u16 tt)
+hub_clear_tt_buffer(struct usb_device *hdev, u16 devinfo, u16 tt)
{
/* Need to clear both directions for control ep */
if (((devinfo >> 11) & USB_ENDPOINT_XFERTYPE_MASK) ==
@@ -706,7 +706,7 @@ static void hub_tt_work(struct work_struct *work)
container_of(work, struct usb_hub, tt.clear_work);
unsigned long flags;
- spin_lock_irqsave (&hub->tt.lock, flags);
+ spin_lock_irqsave(&hub->tt.lock, flags);
while (!list_empty(&hub->tt.clear_list)) {
struct list_head *next;
struct usb_tt_clear *clear;
@@ -715,14 +715,14 @@ static void hub_tt_work(struct work_struct *work)
int status;
next = hub->tt.clear_list.next;
- clear = list_entry (next, struct usb_tt_clear, clear_list);
- list_del (&clear->clear_list);
+ clear = list_entry(next, struct usb_tt_clear, clear_list);
+ list_del(&clear->clear_list);
/* drop lock so HCD can concurrently report other TT errors */
- spin_unlock_irqrestore (&hub->tt.lock, flags);
- status = hub_clear_tt_buffer (hdev, clear->devinfo, clear->tt);
+ spin_unlock_irqrestore(&hub->tt.lock, flags);
+ status = hub_clear_tt_buffer(hdev, clear->devinfo, clear->tt);
if (status && status != -ENODEV)
- dev_err (&hdev->dev,
+ dev_err(&hdev->dev,
"clear tt %d (%04x) error %d\n",
clear->tt, clear->devinfo, status);
@@ -734,7 +734,7 @@ static void hub_tt_work(struct work_struct *work)
kfree(clear);
spin_lock_irqsave(&hub->tt.lock, flags);
}
- spin_unlock_irqrestore (&hub->tt.lock, flags);
+ spin_unlock_irqrestore(&hub->tt.lock, flags);
}
/**
@@ -797,7 +797,7 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
*/
clear = kmalloc(sizeof *clear, GFP_ATOMIC);
if (clear == NULL) {
- dev_err (&udev->dev, "can't save CLEAR_TT_BUFFER state\n");
+ dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n");
/* FIXME recover somehow ... RESET_TT? */
return -ENOMEM;
}
@@ -806,10 +806,10 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
clear->tt = tt->multi ? udev->ttport : 1;
clear->devinfo = usb_pipeendpoint (pipe);
clear->devinfo |= udev->devnum << 4;
- clear->devinfo |= usb_pipecontrol (pipe)
+ clear->devinfo |= usb_pipecontrol(pipe)
? (USB_ENDPOINT_XFER_CONTROL << 11)
: (USB_ENDPOINT_XFER_BULK << 11);
- if (usb_pipein (pipe))
+ if (usb_pipein(pipe))
clear->devinfo |= 1 << 15;
/* info for completion callback */
@@ -817,10 +817,10 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
clear->ep = urb->ep;
/* tell keventd to clear state for this TT */
- spin_lock_irqsave (&tt->lock, flags);
- list_add_tail (&clear->clear_list, &tt->clear_list);
+ spin_lock_irqsave(&tt->lock, flags);
+ list_add_tail(&clear->clear_list, &tt->clear_list);
schedule_work(&tt->clear_work);
- spin_unlock_irqrestore (&tt->lock, flags);
+ spin_unlock_irqrestore(&tt->lock, flags);
return 0;
}
EXPORT_SYMBOL_GPL(usb_hub_clear_tt_buffer);
@@ -1442,8 +1442,8 @@ static int hub_configure(struct usb_hub *hub,
break;
}
- spin_lock_init (&hub->tt.lock);
- INIT_LIST_HEAD (&hub->tt.clear_list);
+ spin_lock_init(&hub->tt.lock);
+ INIT_LIST_HEAD(&hub->tt.clear_list);
INIT_WORK(&hub->tt.clear_work, hub_tt_work);
switch (hdev->descriptor.bDeviceProtocol) {
case USB_HUB_PR_FS:
@@ -1632,7 +1632,7 @@ static int hub_configure(struct usb_hub *hub,
return 0;
fail:
- dev_err (hub_dev, "config failed, %s (err %d)\n",
+ dev_err(hub_dev, "config failed, %s (err %d)\n",
message, ret);
/* hub_disconnect() frees urb and descriptor */
return ret;
@@ -1775,7 +1775,7 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id)
if ((desc->desc.bInterfaceSubClass != 0) &&
(desc->desc.bInterfaceSubClass != 1)) {
descriptor_error:
- dev_err (&intf->dev, "bad descriptor, ignoring hub\n");
+ dev_err(&intf->dev, "bad descriptor, ignoring hub\n");
return -EIO;
}
@@ -1790,11 +1790,11 @@ descriptor_error:
goto descriptor_error;
/* We found a hub */
- dev_info (&intf->dev, "USB hub found\n");
+ dev_info(&intf->dev, "USB hub found\n");
hub = kzalloc(sizeof(*hub), GFP_KERNEL);
if (!hub) {
- dev_dbg (&intf->dev, "couldn't kmalloc hub struct\n");
+ dev_dbg(&intf->dev, "couldn't kmalloc hub struct\n");
return -ENOMEM;
}
@@ -1807,7 +1807,7 @@ descriptor_error:
usb_get_intf(intf);
usb_get_dev(hdev);
- usb_set_intfdata (intf, hub);
+ usb_set_intfdata(intf, hub);
intf->needs_remote_wakeup = 1;
pm_suspend_ignore_children(&intf->dev, true);
@@ -1820,14 +1820,14 @@ descriptor_error:
if (hub_configure(hub, endpoint) >= 0)
return 0;
- hub_disconnect (intf);
+ hub_disconnect(intf);
return -ENODEV;
}
static int
hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data)
{
- struct usb_device *hdev = interface_to_usbdev (intf);
+ struct usb_device *hdev = interface_to_usbdev(intf);
struct usb_hub *hub = usb_hub_to_struct_hub(hdev);
/* assert ifno == 0 (part of hub spec) */
@@ -2143,7 +2143,7 @@ void usb_disconnect(struct usb_device **pdev)
* cleaning up all state associated with the current configuration
* so that the hardware is now fully quiesced.
*/
- dev_dbg (&udev->dev, "unregistering device\n");
+ dev_dbg(&udev->dev, "unregistering device\n");
usb_disable_device(udev, 0);
usb_hcd_synchronize_unlinks(udev);
@@ -2242,7 +2242,7 @@ static int usb_enumerate_device_otg(struct usb_device *udev)
struct usb_bus *bus = udev->bus;
/* descriptor may appear anywhere in config */
- if (__usb_get_extra_descriptor (udev->rawdescriptors[0],
+ if (__usb_get_extra_descriptor(udev->rawdescriptors[0],
le16_to_cpu(udev->config[0].desc.wTotalLength),
USB_DT_OTG, (void **) &desc) == 0) {
if (desc->bmAttributes & USB_OTG_HNP) {
@@ -3526,7 +3526,7 @@ static int check_ports_changed(struct usb_hub *hub)
static int hub_suspend(struct usb_interface *intf, pm_message_t msg)
{
- struct usb_hub *hub = usb_get_intfdata (intf);
+ struct usb_hub *hub = usb_get_intfdata(intf);
struct usb_device *hdev = hub->hdev;
unsigned port1;
int status;
@@ -3950,6 +3950,8 @@ int usb_disable_lpm(struct usb_device *udev)
if (usb_disable_link_state(hcd, udev, USB3_LPM_U2))
goto enable_lpm;
+ udev->usb3_lpm_enabled = 0;
+
return 0;
enable_lpm:
@@ -4007,6 +4009,8 @@ void usb_enable_lpm(struct usb_device *udev)
usb_enable_link_state(hcd, udev, USB3_LPM_U1);
usb_enable_link_state(hcd, udev, USB3_LPM_U2);
+
+ udev->usb3_lpm_enabled = 1;
}
EXPORT_SYMBOL_GPL(usb_enable_lpm);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.