[PATCH] USB: UHCI: store the endpoint type in the QH structure
This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's
type in the corresponding Queue Header structure.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index e123931..28c1c51 100644
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -98,6 +98,7 @@
char *out = buf;
struct uhci_td *td;
int i, nactive, ninactive;
+ char *ptype;
if (len < 200)
return 0;
@@ -110,13 +111,14 @@
(usb_pipein(urbp->urb->pipe) ? "IN" : "OUT"));
switch (usb_pipetype(urbp->urb->pipe)) {
- case PIPE_ISOCHRONOUS: out += sprintf(out, "ISO"); break;
- case PIPE_INTERRUPT: out += sprintf(out, "INT"); break;
- case PIPE_BULK: out += sprintf(out, "BLK"); break;
- case PIPE_CONTROL: out += sprintf(out, "CTL"); break;
+ case PIPE_ISOCHRONOUS: ptype = "ISO"; break;
+ case PIPE_INTERRUPT: ptype = "INT"; break;
+ case PIPE_BULK: ptype = "BLK"; break;
+ default:
+ case PIPE_CONTROL: ptype = "CTL"; break;
}
- out += sprintf(out, "%s", (urbp->fsbr ? " FSBR" : ""));
+ out += sprintf(out, "%s%s", ptype, (urbp->fsbr ? " FSBR" : ""));
if (urbp->urb->status != -EINPROGRESS)
out += sprintf(out, " Status=%d", urbp->urb->status);
@@ -147,13 +149,23 @@
char *out = buf;
int i, nurbs;
__le32 element = qh_element(qh);
+ char *qtype;
/* Try to make sure there's enough memory */
if (len < 80 * 6)
return 0;
- out += sprintf(out, "%*s[%p] link (%08x) element (%08x)\n", space, "",
- qh, le32_to_cpu(qh->link), le32_to_cpu(element));
+ switch (qh->type) {
+ case USB_ENDPOINT_XFER_ISOC: qtype = "ISO"; break;
+ case USB_ENDPOINT_XFER_INT: qtype = "INT"; break;
+ case USB_ENDPOINT_XFER_BULK: qtype = "BLK"; break;
+ case USB_ENDPOINT_XFER_CONTROL: qtype = "CTL"; break;
+ default: qtype = "Skel" ; break;
+ }
+
+ out += sprintf(out, "%*s[%p] %s QH link (%08x) element (%08x)\n",
+ space, "", qh, qtype,
+ le32_to_cpu(qh->link), le32_to_cpu(element));
if (element & UHCI_PTR_QH)
out += sprintf(out, "%*s Element points to QH (bug?)\n", space, "");
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index d5c8f4d..8e57786 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -132,6 +132,7 @@
unsigned int unlink_frame; /* When the QH was unlinked */
int state; /* QH_STATE_xxx; see above */
+ int type; /* Queue type (control, bulk, etc) */
unsigned int initial_toggle:1; /* Endpoint's current toggle value */
unsigned int needs_fixup:1; /* Must fix the TD toggle values */
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index a06d84c..8639e90 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -179,10 +179,12 @@
qh->hep = hep;
qh->udev = udev;
hep->hcpriv = qh;
+ qh->type = hep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
} else { /* Skeleton QH */
qh->state = QH_STATE_ACTIVE;
qh->udev = NULL;
+ qh->type = -1;
}
return qh;
}
@@ -217,8 +219,8 @@
qh->element = UHCI_PTR_TERM;
/* Only bulk and interrupt pipes have to worry about toggles */
- if (!(usb_pipetype(urb->pipe) == PIPE_BULK ||
- usb_pipetype(urb->pipe) == PIPE_INTERRUPT))
+ if (!(qh->type == USB_ENDPOINT_XFER_BULK ||
+ qh->type == USB_ENDPOINT_XFER_INT))
return;
/* Find the first active TD; that's the device's toggle state */
@@ -1099,14 +1101,14 @@
}
urbp->qh = qh;
- switch (usb_pipetype(urb->pipe)) {
- case PIPE_CONTROL:
+ switch (qh->type) {
+ case USB_ENDPOINT_XFER_CONTROL:
ret = uhci_submit_control(uhci, urb, qh);
break;
- case PIPE_BULK:
+ case USB_ENDPOINT_XFER_BULK:
ret = uhci_submit_bulk(uhci, urb, qh);
break;
- case PIPE_INTERRUPT:
+ case USB_ENDPOINT_XFER_INT:
if (list_empty(&qh->queue)) {
bustime = usb_check_bandwidth(urb->dev, urb);
if (bustime < 0)
@@ -1125,7 +1127,7 @@
ret = uhci_submit_interrupt(uhci, urb, qh);
}
break;
- case PIPE_ISOCHRONOUS:
+ case USB_ENDPOINT_XFER_ISOC:
bustime = usb_check_bandwidth(urb->dev, urb);
if (bustime < 0) {
ret = bustime;
@@ -1175,7 +1177,7 @@
goto done;
/* Remove Isochronous TDs from the frame list ASAP */
- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
+ if (urbp->qh->type == USB_ENDPOINT_XFER_ISOC)
uhci_unlink_isochronous_tds(uhci, urb);
uhci_unlink_qh(uhci, urbp->qh);
@@ -1195,7 +1197,7 @@
struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv;
/* Isochronous TDs get unlinked directly from the frame list */
- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
+ if (qh->type == USB_ENDPOINT_XFER_ISOC)
uhci_unlink_isochronous_tds(uhci, urb);
/* If the URB isn't first on its queue, adjust the link pointer
@@ -1224,13 +1226,13 @@
uhci_dec_fsbr(uhci, urb); /* Safe since it checks */
uhci_free_urb_priv(uhci, urbp);
- switch (usb_pipetype(urb->pipe)) {
- case PIPE_ISOCHRONOUS:
+ switch (qh->type) {
+ case USB_ENDPOINT_XFER_ISOC:
/* Release bandwidth for Interrupt or Isoc. transfers */
if (urb->bandwidth)
usb_release_bandwidth(urb->dev, urb, 1);
break;
- case PIPE_INTERRUPT:
+ case USB_ENDPOINT_XFER_INT:
/* Release bandwidth for Interrupt or Isoc. transfers */
/* Make sure we don't release if we have a queued URB */
if (list_empty(&qh->queue) && urb->bandwidth)
@@ -1273,14 +1275,14 @@
urbp = list_entry(qh->queue.next, struct urb_priv, node);
urb = urbp->urb;
- switch (usb_pipetype(urb->pipe)) {
- case PIPE_CONTROL:
+ switch (qh->type) {
+ case USB_ENDPOINT_XFER_CONTROL:
status = uhci_result_control(uhci, urb);
break;
- case PIPE_ISOCHRONOUS:
+ case USB_ENDPOINT_XFER_ISOC:
status = uhci_result_isochronous(uhci, urb);
break;
- default: /* PIPE_BULK or PIPE_INTERRUPT */
+ default: /* USB_ENDPOINT_XFER_BULK or _INT */
status = uhci_result_common(uhci, urb);
break;
}