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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
commit988addf82e4c03739375279de73929580a2d4a6a (patch)
tree989ae1cd4e264bbad80c65f04480486246e7b9f3 /include/linux/usb.h
parent004c1c7096659d352b83047a7593e91d8a30e3c5 (diff)
parent25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff)
Merge branch 'origin' into devel-stable
Conflicts: arch/arm/mach-mx2/devices.c arch/arm/mach-mx2/devices.h sound/soc/pxa/pxa-ssp.c
Diffstat (limited to 'include/linux/usb.h')
-rw-r--r--include/linux/usb.h54
1 files changed, 21 insertions, 33 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index d7ace1b80f0..3492abf82e7 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -122,7 +122,6 @@ enum usb_interface_condition {
* number from the USB core by calling usb_register_dev().
* @condition: binding state of the interface: not bound, binding
* (in probe()), bound to a driver, or unbinding (in disconnect())
- * @is_active: flag set when the interface is bound and not suspended.
* @sysfs_files_created: sysfs attributes exist
* @ep_devs_created: endpoint child pseudo-devices exist
* @unregistering: flag set when the interface is being unregistered
@@ -135,8 +134,7 @@ enum usb_interface_condition {
* @dev: driver model's view of this device
* @usb_dev: if an interface is bound to the USB major, this will point
* to the sysfs representation for that device.
- * @pm_usage_cnt: PM usage counter for this interface; autosuspend is not
- * allowed unless the counter is 0.
+ * @pm_usage_cnt: PM usage counter for this interface
* @reset_ws: Used for scheduling resets from atomic context.
* @reset_running: set to 1 if the interface is currently running a
* queued reset so that usb_cancel_queued_reset() doesn't try to
@@ -184,7 +182,6 @@ struct usb_interface {
int minor; /* minor number this interface is
* bound to */
enum usb_interface_condition condition; /* state of binding */
- unsigned is_active:1; /* the interface is not suspended */
unsigned sysfs_files_created:1; /* the sysfs attributes exist */
unsigned ep_devs_created:1; /* endpoint "devices" exist */
unsigned unregistering:1; /* unregistration is in progress */
@@ -339,6 +336,7 @@ struct usb_bus {
struct usb_devmap devmap; /* device address allocation map */
struct usb_device *root_hub; /* Root hub */
+ struct usb_bus *hs_companion; /* Companion EHCI bus, if any */
struct list_head bus_list; /* list of busses */
int bandwidth_allocated; /* on this bus: how much of the time
@@ -400,7 +398,6 @@ struct usb_tt;
* @portnum: parent port number (origin 1)
* @level: number of USB hub ancestors
* @can_submit: URBs may be submitted
- * @discon_suspended: disconnected while suspended
* @persist_enabled: USB_PERSIST enabled for this device
* @have_langid: whether string_langid is valid
* @authorized: policy has said we can use it;
@@ -420,20 +417,15 @@ struct usb_tt;
* @usbfs_dentry: usbfs dentry entry for the device
* @maxchild: number of ports if hub
* @children: child devices - USB devices that are attached to this hub
- * @pm_usage_cnt: usage counter for autosuspend
* @quirks: quirks of the whole device
* @urbnum: number of URBs submitted for the whole device
* @active_duration: total time device is not suspended
- * @autosuspend: for delayed autosuspends
- * @autoresume: for autoresumes requested while in_interrupt
- * @pm_mutex: protects PM operations
* @last_busy: time of last use
* @autosuspend_delay: in jiffies
* @connect_time: time device was first connected
* @do_remote_wakeup: remote wakeup should be enabled
* @reset_resume: needs reset instead of resume
* @autosuspend_disabled: autosuspend disabled by the user
- * @skip_sys_resume: skip the next system resume
* @wusb_dev: if this is a Wireless USB device, link to the WUSB
* specific data for the device.
* @slot_id: Slot ID assigned by xHCI
@@ -474,7 +466,6 @@ struct usb_device {
u8 level;
unsigned can_submit:1;
- unsigned discon_suspended:1;
unsigned persist_enabled:1;
unsigned have_langid:1;
unsigned authorized:1;
@@ -498,17 +489,12 @@ struct usb_device {
int maxchild;
struct usb_device *children[USB_MAXCHILDREN];
- int pm_usage_cnt;
u32 quirks;
atomic_t urbnum;
unsigned long active_duration;
#ifdef CONFIG_PM
- struct delayed_work autosuspend;
- struct work_struct autoresume;
- struct mutex pm_mutex;
-
unsigned long last_busy;
int autosuspend_delay;
unsigned long connect_time;
@@ -516,7 +502,6 @@ struct usb_device {
unsigned do_remote_wakeup:1;
unsigned reset_resume:1;
unsigned autosuspend_disabled:1;
- unsigned skip_sys_resume:1;
#endif
struct wusb_dev *wusb_dev;
int slot_id;
@@ -541,21 +526,15 @@ extern struct usb_device *usb_find_device(u16 vendor_id, u16 product_id);
/* USB autosuspend and autoresume */
#ifdef CONFIG_USB_SUSPEND
+extern int usb_enable_autosuspend(struct usb_device *udev);
+extern int usb_disable_autosuspend(struct usb_device *udev);
+
extern int usb_autopm_get_interface(struct usb_interface *intf);
extern void usb_autopm_put_interface(struct usb_interface *intf);
extern int usb_autopm_get_interface_async(struct usb_interface *intf);
extern void usb_autopm_put_interface_async(struct usb_interface *intf);
-
-static inline void usb_autopm_get_interface_no_resume(
- struct usb_interface *intf)
-{
- atomic_inc(&intf->pm_usage_cnt);
-}
-static inline void usb_autopm_put_interface_no_suspend(
- struct usb_interface *intf)
-{
- atomic_dec(&intf->pm_usage_cnt);
-}
+extern void usb_autopm_get_interface_no_resume(struct usb_interface *intf);
+extern void usb_autopm_put_interface_no_suspend(struct usb_interface *intf);
static inline void usb_mark_last_busy(struct usb_device *udev)
{
@@ -564,6 +543,11 @@ static inline void usb_mark_last_busy(struct usb_device *udev)
#else
+static inline int usb_enable_autosuspend(struct usb_device *udev)
+{ return 0; }
+static inline int usb_disable_autosuspend(struct usb_device *udev)
+{ return 0; }
+
static inline int usb_autopm_get_interface(struct usb_interface *intf)
{ return 0; }
static inline int usb_autopm_get_interface_async(struct usb_interface *intf)
@@ -1582,14 +1566,18 @@ extern void usb_register_notify(struct notifier_block *nb);
extern void usb_unregister_notify(struct notifier_block *nb);
#ifdef DEBUG
-#define dbg(format, arg...) printk(KERN_DEBUG "%s: " format "\n" , \
- __FILE__ , ## arg)
+#define dbg(format, arg...) \
+ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg)
#else
-#define dbg(format, arg...) do {} while (0)
+#define dbg(format, arg...) \
+do { \
+ if (0) \
+ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \
+} while (0)
#endif
-#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
- format "\n" , ## arg)
+#define err(format, arg...) \
+ printk(KERN_ERR KBUILD_MODNAME ": " format "\n", ##arg)
/* debugfs stuff */
extern struct dentry *usb_debug_root;