Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

[pandora-kernel.git] / drivers / usb / host / uhci-hcd.c

diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index acd101c..49b9d39 100644 (file)
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -92,6 +92,34 @@ static void suspend_rh(struct uhci_hcd *uhci, enum uhci_rh_state new_state);
 static void wakeup_rh(struct uhci_hcd *uhci);
 static void uhci_get_current_frame_number(struct uhci_hcd *uhci);
 
+/*
+ * Calculate the link pointer DMA value for the first Skeleton QH in a frame.
+ */
+static __le32 uhci_frame_skel_link(struct uhci_hcd *uhci, int frame)
+{
+       int skelnum;
+
+       /*
+        * The interrupt queues will be interleaved as evenly as possible.
+        * There's not much to be done about period-1 interrupts; they have
+        * to occur in every frame.  But we can schedule period-2 interrupts
+        * in odd-numbered frames, period-4 interrupts in frames congruent
+        * to 2 (mod 4), and so on.  This way each frame only has two
+        * interrupt QHs, which will help spread out bandwidth utilization.
+        *
+        * ffs (Find First bit Set) does exactly what we need:
+        * 1,3,5,...  => ffs = 0 => use skel_int2_qh = skelqh[8],
+        * 2,6,10,... => ffs = 1 => use skel_int4_qh = skelqh[7], etc.
+        * ffs >= 7 => not on any high-period queue, so use
+        *      skel_int1_qh = skelqh[9].
+        * Add in UHCI_NUMFRAMES to insure at least one bit is set.
+        */
+       skelnum = 8 - (int) __ffs(frame | UHCI_NUMFRAMES);
+       if (skelnum <= 1)
+               skelnum = 9;
+       return UHCI_PTR_QH | cpu_to_le32(uhci->skelqh[skelnum]->dma_handle);
+}
+
 #include "uhci-debug.c"
 #include "uhci-q.c"
 #include "uhci-hub.c"
@@ -209,24 +237,16 @@ static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
 
 static int remote_wakeup_is_broken(struct uhci_hcd *uhci)
 {
-       static struct dmi_system_id broken_wakeup_table[] = {
-               {
-                       .ident = "Asus A7V8X",
-                       .matches = {
-                               DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK"),
-                               DMI_MATCH(DMI_BOARD_NAME, "A7V8X"),
-                               DMI_MATCH(DMI_BOARD_VERSION, "REV 1.xx"),
-                       }
-               },
-               { }
-       };
        int port;
+       char *sys_info;
+       static char bad_Asus_board[] = "A7V8X";
 
        /* One of Asus's motherboards has a bug which causes it to
         * wake up immediately from suspend-to-RAM if any of the ports
         * are connected.  In such cases we will not set EGSM.
         */
-       if (dmi_check_system(broken_wakeup_table)) {
+       sys_info = dmi_get_system_info(DMI_BOARD_NAME);
+       if (sys_info && !strcmp(sys_info, bad_Asus_board)) {
                for (port = 0; port < uhci->rh_numports; ++port) {
                        if (inw(uhci->io_addr + USBPORTSC1 + port * 2) &
                                        USBPORTSC_CCS)
@@ -265,7 +285,9 @@ __acquires(uhci->lock)
        int_enable = USBINTR_RESUME;
        if (remote_wakeup_is_broken(uhci))
                egsm_enable = 0;
-       if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable)
+       if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable ||
+                       !device_may_wakeup(
+                               &uhci_to_hcd(uhci)->self.root_hub->dev))
                uhci->working_RD = int_enable = 0;
 
        outw(int_enable, uhci->io_addr + USBINTR);
@@ -637,32 +659,11 @@ static int uhci_start(struct usb_hcd *hcd)
        /*
         * Fill the frame list: make all entries point to the proper
         * interrupt queue.
-        *
-        * The interrupt queues will be interleaved as evenly as possible.
-        * There's not much to be done about period-1 interrupts; they have
-        * to occur in every frame.  But we can schedule period-2 interrupts
-        * in odd-numbered frames, period-4 interrupts in frames congruent
-        * to 2 (mod 4), and so on.  This way each frame only has two
-        * interrupt QHs, which will help spread out bandwidth utilization.
         */
        for (i = 0; i < UHCI_NUMFRAMES; i++) {
-               int irq;
-
-               /*
-                * ffs (Find First bit Set) does exactly what we need:
-                * 1,3,5,...  => ffs = 0 => use skel_int2_qh = skelqh[8],
-                * 2,6,10,... => ffs = 1 => use skel_int4_qh = skelqh[7], etc.
-                * ffs >= 7 => not on any high-period queue, so use
-                *      skel_int1_qh = skelqh[9].
-                * Add UHCI_NUMFRAMES to insure at least one bit is set.
-                */
-               irq = 8 - (int) __ffs(i + UHCI_NUMFRAMES);
-               if (irq <= 1)
-                       irq = 9;
 
                /* Only place we don't use the frame list routines */
-               uhci->frame[i] = UHCI_PTR_QH |
-                               cpu_to_le32(uhci->skelqh[irq]->dma_handle);
+               uhci->frame[i] = uhci_frame_skel_link(uhci, i);
        }
 
        /*