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authorJason Wright <jason@cvs.openbsd.org>1998-11-11 19:34:52 +0000
committerJason Wright <jason@cvs.openbsd.org>1998-11-11 19:34:52 +0000
commitb67320a002793e8f496722a85d888421724eb4dc (patch)
tree4c109936ccfb901a84c59a7f464a83c8a9a31a41 /sys/dev/mii/mii_physubr.c
parentb4d28fc47cc2f346e2f660be351cb60a89bd26ee (diff)
Merge with NetBSD:
o additional phy drivers (seeq, ics, level1) o "unknown phy" driver for unsupported phys o collected common code into mii_physubr o exphy isn't the only phy that doesn't have valid id registers
Diffstat (limited to 'sys/dev/mii/mii_physubr.c')
-rw-r--r--sys/dev/mii/mii_physubr.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/sys/dev/mii/mii_physubr.c b/sys/dev/mii/mii_physubr.c
new file mode 100644
index 00000000000..4d7ee6dd5fd
--- /dev/null
+++ b/sys/dev/mii/mii_physubr.c
@@ -0,0 +1,102 @@
+/* $OpenBSD: mii_physubr.c,v 1.1 1998/11/11 19:34:47 jason Exp $ */
+/* $NetBSD: mii_physubr.c,v 1.2 1998/11/04 23:28:15 thorpej Exp $ */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Subroutines common to all PHYs.
+ */
+
+#include <sys/param.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+#include <sys/socket.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+
+int
+mii_phy_auto(mii)
+ struct mii_softc *mii;
+{
+ int bmsr, i;
+
+ PHY_WRITE(mii, MII_ANAR,
+ BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
+ PHY_WRITE(mii, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG);
+
+ /* Wait 500ms for it to complete. */
+ for (i = 0; i < 500; i++) {
+ if ((bmsr = PHY_READ(mii, MII_BMSR)) & BMSR_ACOMP)
+ return (1);
+ delay(1000);
+ }
+#if 0
+ if ((bmsr & BMSR_ACOMP) == 0)
+ printf("%s: autonegotiation failed to complete\n",
+ mii->mii_dev.dv_xname);
+#endif
+ return (0);
+}
+
+void
+mii_phy_reset(mii)
+ struct mii_softc *mii;
+{
+ int reg, i;
+
+ if (mii->mii_flags & MIIF_NOISOLATE)
+ reg = BMCR_RESET;
+ else
+ reg = BMCR_RESET | BMCR_ISO;
+ PHY_WRITE(mii, MII_BMCR, reg);
+
+ /* Wait 100ms for it to complete. */
+ for (i = 0; i < 100; i++) {
+ reg = PHY_READ(mii, MII_BMCR);
+ if ((reg & BMCR_RESET) == 0)
+ break;
+ delay(1000);
+ }
+
+ if (mii->mii_inst != 0 && ((mii->mii_flags & MIIF_NOISOLATE) == 0))
+ PHY_WRITE(mii, MII_BMCR, reg | BMCR_ISO);
+}