From owner-freebsd-arm@freebsd.org  Thu Jun 30 20:56:08 2016
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To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>,
 =?UTF-8?Q?Edward_Tomasz_Napiera=c5=82a?= <trasz@FreeBSD.org>
From: Hans Petter Selasky <hps@selasky.org>
Subject: DWC OTG patch to test
Message-ID: <b6dd5aba-bde0-c2c5-103b-b814bc9579ea@selasky.org>
Date: Thu, 30 Jun 2016 22:59:46 +0200
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Hi,

The attached patch should fix detection of USB detach, if you connect a 
USB device directly to the RPI, not via the built-in USB HUB, for 
example using RPI-zero. If you have a RPI-zero running FreeBSD - please 
test.

--HPS

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Index: sys/dev/usb/controller/dwc_otg.c
===================================================================
--- sys/dev/usb/controller/dwc_otg.c	(revision 300199)
+++ sys/dev/usb/controller/dwc_otg.c	(working copy)
@@ -2985,7 +2985,8 @@
 		else
 			sc->sc_flags.status_bus_reset = 0;
 
-		if (hprt & HPRT_PRTENCHNG)
+		if ((hprt & HPRT_PRTENCHNG) &&
+		    (hprt & HPRT_PRTENA) == 0)
 			sc->sc_flags.change_enabled = 1;
 
 		if (hprt & HPRT_PRTENA)
@@ -4745,6 +4746,8 @@
 
 	value = 0;
 
+	if (sc->sc_flags.change_enabled)
+		value |= UPS_C_PORT_ENABLED;
 	if (sc->sc_flags.change_connect)
 		value |= UPS_C_CONNECT_STATUS;
 	if (sc->sc_flags.change_suspend)

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