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authorAlan Stern <stern@rowland.harvard.edu>2005-05-03 16:27:26 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2005-06-27 14:43:52 -0700
commit685eb93f086eb15d9fb1e82c7400fd750f564640 (patch)
treeded0db2402889ec30878c3dbbd08f7b5d01a694b
parentf1c39fad7d1bbea31744138cd3a532ff346cd4ab (diff)
[PATCH] USB dummy_hcd: Use root-hub interrupts instead of polling
This patch makes the dummy_hcd driver use emulated root-hub interrupts instead of polling. It's in the spirit of similar changes being made to the other HCDs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/gadget/dummy_hcd.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 2d6d2295132..73d2f24050a 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -684,6 +684,7 @@ static int dummy_wakeup (struct usb_gadget *_gadget)
/* hub notices our request, issues downstream resume, etc */
dum->resuming = 1;
dum->re_timeout = jiffies + msecs_to_jiffies(20);
+ mod_timer (&dummy_to_hcd (dum)->rh_timer, dum->re_timeout);
return 0;
}
@@ -709,6 +710,8 @@ static int dummy_pullup (struct usb_gadget *_gadget, int value)
dum->pullup = (value != 0);
set_link_state (dum);
spin_unlock_irqrestore (&dum->lock, flags);
+
+ usb_hcd_poll_rh_status (dummy_to_hcd (dum));
return 0;
}
@@ -811,6 +814,8 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
dum->pullup = 1;
set_link_state (dum);
spin_unlock_irq (&dum->lock);
+
+ usb_hcd_poll_rh_status (dummy_to_hcd (dum));
return 0;
}
EXPORT_SYMBOL (usb_gadget_register_driver);
@@ -845,6 +850,7 @@ usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
set_link_state (dum);
spin_unlock_irqrestore (&dum->lock, flags);
+ usb_hcd_poll_rh_status (dummy_to_hcd (dum));
return 0;
}
EXPORT_SYMBOL (usb_gadget_unregister_driver);
@@ -1669,6 +1675,9 @@ static int dummy_hub_control (
retval = -EPIPE;
}
spin_unlock_irqrestore (&dum->lock, flags);
+
+ if ((dum->port_status & PORT_C_MASK) != 0)
+ usb_hcd_poll_rh_status (hcd);
return retval;
}
@@ -1745,6 +1754,7 @@ static int dummy_start (struct usb_hcd *hcd)
/* only show a low-power port: just 8mA */
hcd->power_budget = 8;
hcd->state = HC_STATE_RUNNING;
+ hcd->uses_new_polling = 1;
#ifdef CONFIG_USB_OTG
hcd->self.otg_port = 1;