Backout pascoe@'s last USB change because it page faults at attachment

time.

Chris; Get your shiz fixed and tested for the next time.  We have
better todo then wasting our time by backing out untested stuff.

OK deraadt, OK ckuethe

4 files changed, 27 insertions, 26 deletions

diff --git a/sys/dev/usb/ohci.c b/sys/dev/usb/ohci.c
index 4e3c6bc2a2f..122a67ee846 100644
--- a/sys/dev/usb/ohci.c
+++ b/sys/dev/usb/ohci.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ohci.c,v 1.74 2007/03/18 06:08:24 pascoe Exp $ */
+/*	$OpenBSD: ohci.c,v 1.75 2007/03/18 20:14:51 mglocker Exp $ */
 /*	$NetBSD: ohci.c,v 1.139 2003/02/22 05:24:16 tsutsui Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $	*/
 
@@ -616,7 +616,7 @@ ohci_init(ohci_softc_t *sc)
 	ohci_soft_ed_t *sed, *psed;
 	usbd_status err;
 	int i;
-	u_int32_t ctl, rwc, ival, hcr, fm, per, rev, desca, descb;
+	u_int32_t s, ctl, rwc, ival, hcr, fm, per, rev, desca, descb;
 
 	DPRINTF(("ohci_init: start\n"));
 	printf(",");
@@ -718,12 +718,26 @@ ohci_init(ohci_softc_t *sc)
 	desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A);
 	descb = OREAD4(sc, OHCI_RH_DESCRIPTOR_B);
 
-	/* SMM handover performed by the PCI code didn't work? */
+	/* Determine in what context we are running. */
 	if (ctl & OHCI_IR) {
-		printf("%s: SMM does not respond, resetting\n",
-		       USBDEVNAME(sc->sc_bus.bdev));
-		OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc);
-		goto reset;
+		/* SMM active, request change */
+		DPRINTF(("ohci_init: SMM active, request owner change\n"));
+		if ((sc->sc_intre & (OHCI_OC | OHCI_MIE)) == 
+		    (OHCI_OC | OHCI_MIE))
+			OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_MIE);
+		s = OREAD4(sc, OHCI_COMMAND_STATUS);
+		OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR);
+		for (i = 0; i < 100 && (ctl & OHCI_IR); i++) {
+			usb_delay_ms(&sc->sc_bus, 1);
+			ctl = OREAD4(sc, OHCI_CONTROL);
+		}
+		OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_MIE);
+		if (ctl & OHCI_IR) {
+			printf("%s: SMM does not respond, resetting\n",
+			       USBDEVNAME(sc->sc_bus.bdev));
+			OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc);
+			goto reset;
+		}
 #if 0
 /* Don't bother trying to reuse the BIOS init, we'll reset it anyway. */
 	} else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) {
diff --git a/sys/dev/usb/uhci.c b/sys/dev/usb/uhci.c
index e83cecaadb1..50ec3b3e891 100644
--- a/sys/dev/usb/uhci.c
+++ b/sys/dev/usb/uhci.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uhci.c,v 1.49 2007/03/18 05:55:24 pascoe Exp $	*/
+/*	$OpenBSD: uhci.c,v 1.50 2007/03/18 20:14:51 mglocker Exp $	*/
 /*	$NetBSD: uhci.c,v 1.172 2003/02/23 04:19:26 simonb Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $	*/
 
@@ -409,16 +409,10 @@ uhci_init(uhci_softc_t *sc)
 		uhci_dumpregs(sc);
 #endif
 
-	/* Save SOF over HC reset. */
-	sc->sc_saved_sof = UREAD1(sc, UHCI_SOF);
-
 	UWRITE2(sc, UHCI_INTR, 0);		/* disable interrupts */
 	uhci_globalreset(sc);			/* reset the controller */
 	uhci_reset(sc);
 
-	/* Restore saved SOF. */
-	UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof);
-
 	/* Allocate and initialize real frame array. */
 	err = usb_allocmem(&sc->sc_bus,
 		  UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t),
@@ -726,6 +720,7 @@ uhci_power(int why, void *v)
 
 		/* save some state if BIOS doesn't */
 		sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM);
+		sc->sc_saved_sof = UREAD1(sc, UHCI_SOF);
 
 		UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */
 
diff --git a/sys/dev/usb/uhub.c b/sys/dev/usb/uhub.c
index 056158408e2..631607cdb14 100644
--- a/sys/dev/usb/uhub.c
+++ b/sys/dev/usb/uhub.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uhub.c,v 1.35 2007/03/18 06:00:45 pascoe Exp $ */
+/*	$OpenBSD: uhub.c,v 1.36 2007/03/18 20:14:51 mglocker Exp $ */
 /*	$NetBSD: uhub.c,v 1.64 2003/02/08 03:32:51 ichiro Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/uhub.c,v 1.18 1999/11/17 22:33:43 n_hibma Exp $	*/
 
@@ -338,11 +338,9 @@ USB_ATTACH(uhub)
 			       USBDEVNAME(sc->sc_dev), port,
 			       usbd_errstr(err));
 		DPRINTF(("usb_init_port: turn on port %d power\n", port));
-	}
-
-	/* Wait for stable power.  Root hubs delay in their event thread. */
-	if (dev->powersrc->parent != NULL)
+		/* Wait for stable power. */
 		usbd_delay_ms(dev, pwrdly);
+	}
 
 	/* The usual exploration will finish the setup. */
 
diff --git a/sys/dev/usb/usb.c b/sys/dev/usb/usb.c
index c8256f255dd..b8012f31e27 100644
--- a/sys/dev/usb/usb.c
+++ b/sys/dev/usb/usb.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: usb.c,v 1.36 2007/03/18 06:00:45 pascoe Exp $	*/
+/*	$OpenBSD: usb.c,v 1.37 2007/03/18 20:14:51 mglocker Exp $	*/
 /*	$NetBSD: usb.c,v 1.77 2003/01/01 00:10:26 thorpej Exp $	*/
 
 /*
@@ -304,15 +304,9 @@ void
 usb_event_thread(void *arg)
 {
 	struct usb_softc *sc = arg;
-	int pwrdly;
 
 	DPRINTF(("usb_event_thread: start\n"));
 
-	/* Wait for power to come good. */
-	pwrdly = sc->sc_bus->root_hub->hub->hubdesc.bPwrOn2PwrGood * 
-	    UHD_PWRON_FACTOR + USB_EXTRA_POWER_UP_TIME;
-	usb_delay_ms(sc->sc_bus, pwrdly);
-
 	/* USB1 threads wait for USB2 threads to finish their first probe. */
 	while (sc->sc_bus->usbrev != USBREV_2_0 && threads_pending)
 		(void)tsleep((void *)&threads_pending, PWAIT, "config", 0);