#------------------------------------------------------------------------
#r238466 | rpaulo | 2012-07-15 07:49:02 +0200 (Sun, 15 Jul 2012) | 4 lines
#
#The JP1082 device doesn't respond to the MII_BMSR command and it turns
#out that it has an unusable PHY. It still works, although very slowly,
#without a PHY, so I implemented non-PHY support in the udav driver.
#
#------------------------------------------------------------------------
Index: sys/dev/usb/net/if_udav.c
===================================================================
--- sys/dev/usb/net/if_udav.c	(revision 238465)
+++ sys/dev/usb/net/if_udav.c	(revision 238466)
@@ -169,7 +169,7 @@
 MODULE_DEPEND(udav, miibus, 1, 1, 1);
 MODULE_VERSION(udav, 1);
 
-static const struct usb_ether_methods udav_ue_methods = {
+static struct usb_ether_methods udav_ue_methods = {
 	.ue_attach_post = udav_attach_post,
 	.ue_start = udav_start,
 	.ue_init = udav_init,
@@ -206,7 +206,8 @@
 	{USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)},
 	/* Kontron AG USB Ethernet */
 	{USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)},
-	{USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)},
+	{USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082,
+	    UDAV_FLAG_NO_PHY)},
 };
 
 static void
@@ -259,6 +260,16 @@
 		goto detach;
 	}
 
+	/*
+	 * The JP1082 has an unusable PHY and provides no link information.
+	 */
+	if (sc->sc_flags & UDAV_FLAG_NO_PHY) {
+		udav_ue_methods.ue_tick = NULL;
+		udav_ue_methods.ue_mii_upd = NULL;
+		udav_ue_methods.ue_mii_sts = NULL;
+		sc->sc_flags |= UDAV_FLAG_LINK;
+	}
+
 	ue->ue_sc = sc;
 	ue->ue_dev = dev;
 	ue->ue_udev = uaa->device;
@@ -712,7 +723,8 @@
 	UDAV_LOCK_ASSERT(sc, MA_OWNED);
 
 	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
-	sc->sc_flags &= ~UDAV_FLAG_LINK;
+	if (!(sc->sc_flags & UDAV_FLAG_NO_PHY))
+		sc->sc_flags &= ~UDAV_FLAG_LINK;
 
 	/*
 	 * stop all the transfers, if not already stopped:
Index: sys/dev/usb/net/if_udavreg.h
===================================================================
--- sys/dev/usb/net/if_udavreg.h	(revision 238465)
+++ sys/dev/usb/net/if_udavreg.h	(revision 238466)
@@ -159,6 +159,7 @@
 	int			sc_flags;
 #define	UDAV_FLAG_LINK		0x0001
 #define	UDAV_FLAG_EXT_PHY	0x0040
+#define	UDAV_FLAG_NO_PHY	0x0080
 };
 
 #define	UDAV_LOCK(_sc)			mtx_lock(&(_sc)->sc_mtx)