From 48352be82574e39a54e44b5ed38d407dcb66a0bb Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Mon, 31 Jul 2017 16:05:58 +0200
Subject: usbxhci: provide shutdown function to halt the controller

---
 sys/src/9/pc/usbxhci.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/sys/src/9/pc/usbxhci.c b/sys/src/9/pc/usbxhci.c
index 9ab4b648c..dcb1ab10f 100644
--- a/sys/src/9/pc/usbxhci.c
+++ b/sys/src/9/pc/usbxhci.c
@@ -765,8 +765,16 @@ allocslot(Ctlr *ctlr, Udev *dev)
 }
 
 static void
-shutdown(Hci *)
+shutdown(Hci *hp)
 {
+	Ctlr *ctlr = hp->aux;
+	int i;
+
+	ctlr->opr[USBCMD] = 0;
+	for(i=0; (ctlr->opr[USBSTS] & HCH) == 0 && i < 10; i++)
+		delay(10);
+	intrdisable(ctlr->pcidev->intl, hp->interrupt, hp, ctlr->pcidev->tbdf, hp->type);
+	pciclrbme(ctlr->pcidev);
 }
 
 static void
@@ -1384,7 +1392,7 @@ portstatus(Hci *hp, int port)
 }
 	
 static int
-portenable(Hci *, int port, int on)
+portenable(Hci*, int, int)
 {
 	return 0;
 }
-- 
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