Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6-omap-h63xx.git] / drivers / usb / host / ehci-sched.c

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index b56f25864ed60084028e174e035c552bedc6a331..57e77374d228dd083053b78a26d331a44c4e20cd 100644 (file)
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -589,7 +589,7 @@ static int intr_submit (
        struct usb_host_endpoint *ep,
        struct urb              *urb,
        struct list_head        *qtd_list,
-       unsigned                mem_flags
+       gfp_t                   mem_flags
 ) {
        unsigned                epnum;
        unsigned long           flags;
@@ -602,6 +602,12 @@ static int intr_submit (
 
        spin_lock_irqsave (&ehci->lock, flags);
 
+       if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
+                              &ehci_to_hcd(ehci)->flags))) {
+               status = -ESHUTDOWN;
+               goto done;
+       }
+
        /* get qh and force any scheduling errors */
        INIT_LIST_HEAD (&empty);
        qh = qh_append_tds (ehci, urb, &empty, epnum, &ep->hcpriv);
@@ -634,11 +640,11 @@ done:
 /* ehci_iso_stream ops work with both ITD and SITD */
 
 static struct ehci_iso_stream *
-iso_stream_alloc (unsigned mem_flags)
+iso_stream_alloc (gfp_t mem_flags)
 {
        struct ehci_iso_stream *stream;
 
-       stream = kcalloc(1, sizeof *stream, mem_flags);
+       stream = kzalloc(sizeof *stream, mem_flags);
        if (likely (stream != NULL)) {
                INIT_LIST_HEAD(&stream->td_list);
                INIT_LIST_HEAD(&stream->free_list);
@@ -700,6 +706,7 @@ iso_stream_init (
 
        } else {
                u32             addr;
+               int             think_time;
 
                addr = dev->ttport << 24;
                if (!ehci_is_TDI(ehci)
@@ -709,6 +716,9 @@ iso_stream_init (
                addr |= epnum << 8;
                addr |= dev->devnum;
                stream->usecs = HS_USECS_ISO (maxp);
+               think_time = dev->tt ? dev->tt->think_time : 0;
+               stream->tt_usecs = NS_TO_US (think_time + usb_calc_bus_time (
+                               dev->speed, is_input, 1, maxp));
                if (is_input) {
                        u32     tmp;
 
@@ -847,7 +857,7 @@ iso_stream_find (struct ehci_hcd *ehci, struct urb *urb)
 /* ehci_iso_sched ops can be ITD-only or SITD-only */
 
 static struct ehci_iso_sched *
-iso_sched_alloc (unsigned packets, unsigned mem_flags)
+iso_sched_alloc (unsigned packets, gfp_t mem_flags)
 {
        struct ehci_iso_sched   *iso_sched;
        int                     size = sizeof *iso_sched;
@@ -920,7 +930,7 @@ itd_urb_transaction (
        struct ehci_iso_stream  *stream,
        struct ehci_hcd         *ehci,
        struct urb              *urb,
-       unsigned                mem_flags
+       gfp_t                   mem_flags
 )
 {
        struct ehci_itd         *itd;
@@ -1414,7 +1424,7 @@ itd_complete (
 /*-------------------------------------------------------------------------*/
 
 static int itd_submit (struct ehci_hcd *ehci, struct urb *urb,
-       unsigned mem_flags)
+       gfp_t mem_flags)
 {
        int                     status = -EINVAL;
        unsigned long           flags;
@@ -1452,7 +1462,11 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb,
 
        /* schedule ... need to lock */
        spin_lock_irqsave (&ehci->lock, flags);
-       status = iso_stream_schedule (ehci, urb, stream);
+       if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
+                              &ehci_to_hcd(ehci)->flags)))
+               status = -ESHUTDOWN;
+       else
+               status = iso_stream_schedule (ehci, urb, stream);
        if (likely (status == 0))
                itd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
        spin_unlock_irqrestore (&ehci->lock, flags);
@@ -1525,7 +1539,7 @@ sitd_urb_transaction (
        struct ehci_iso_stream  *stream,
        struct ehci_hcd         *ehci,
        struct urb              *urb,
-       unsigned                mem_flags
+       gfp_t                   mem_flags
 )
 {
        struct ehci_sitd        *sitd;
@@ -1775,7 +1789,7 @@ sitd_complete (
 
 
 static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb,
-       unsigned mem_flags)
+       gfp_t mem_flags)
 {
        int                     status = -EINVAL;
        unsigned long           flags;
@@ -1811,7 +1825,11 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb,
 
        /* schedule ... need to lock */
        spin_lock_irqsave (&ehci->lock, flags);
-       status = iso_stream_schedule (ehci, urb, stream);
+       if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
+                              &ehci_to_hcd(ehci)->flags)))
+               status = -ESHUTDOWN;
+       else
+               status = iso_stream_schedule (ehci, urb, stream);
        if (status == 0)
                sitd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
        spin_unlock_irqrestore (&ehci->lock, flags);