summaryrefslogtreecommitdiffstats
path: root/drivers/usb/host/ehci-hcd.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
-rw-r--r--drivers/usb/host/ehci-hcd.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 398e8fa..e66706a 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -110,6 +110,9 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications");
#include "ehci.h"
#include "pci-quirks.h"
+static void compute_tt_budget(u8 budget_table[EHCI_BANDWIDTH_SIZE],
+ struct ehci_tt *tt);
+
/*
* The MosChip MCS9990 controller updates its microframe counter
* a little before the frame counter, and occasionally we will read
@@ -484,6 +487,7 @@ static int ehci_init(struct usb_hcd *hcd)
INIT_LIST_HEAD(&ehci->intr_qh_list);
INIT_LIST_HEAD(&ehci->cached_itd_list);
INIT_LIST_HEAD(&ehci->cached_sitd_list);
+ INIT_LIST_HEAD(&ehci->tt_list);
if (HCC_PGM_FRAMELISTLEN(hcc_params)) {
/* periodic schedule size can be smaller than default */
@@ -1051,6 +1055,19 @@ static int ehci_get_frame (struct usb_hcd *hcd)
/*-------------------------------------------------------------------------*/
+/* Device addition and removal */
+
+static void ehci_remove_device(struct usb_hcd *hcd, struct usb_device *udev)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+
+ spin_lock_irq(&ehci->lock);
+ drop_tt(udev);
+ spin_unlock_irq(&ehci->lock);
+}
+
+/*-------------------------------------------------------------------------*/
+
#ifdef CONFIG_PM
/* suspend/resume, section 4.3 */
@@ -1194,6 +1211,11 @@ static const struct hc_driver ehci_hc_driver = {
.bus_resume = ehci_bus_resume,
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
+
+ /*
+ * device support
+ */
+ .free_dev = ehci_remove_device,
};
void ehci_init_driver(struct hc_driver *drv,
OpenPOWER on IntegriCloud