kernel/drivers/net/mii/mii_realtek.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 /*
  27  * MII overrides for Cicada (now Vitesse) PHYs.
  28  */
  29
  30 #include <sys/types.h>
  31 #include <sys/ddi.h>
  32 #include <sys/sunddi.h>
  33 #include <sys/mii.h>
  34 #include <sys/miiregs.h>
  35 #include "miipriv.h"
  36
  37
  38 /*
  39  * The Realtek 10/100 PHYs are mostly standard compliant, but they
  40  * lack a true vendor/device ID for the integrated PHY, and they don't
  41  * report the "detected" non-Nway link speed in the appropriate
  42  * registers.
  43  */
  44 static int rtl8139_check(phy_handle_t *);
  45 static int rtl8201_check(phy_handle_t *);
  46
  47 boolean_t
  48 phy_realtek_probe(phy_handle_t *ph)
  49 {
  50         if ((ph->phy_id == 0) &&
  51             (strcmp(phy_get_driver(ph), "rtls") == 0)) {
  52                 ph->phy_vendor = "Realtek";
  53                 ph->phy_model = "Internal RTL8139";
  54                 ph->phy_check = rtl8139_check;
  55                 return (B_TRUE);
  56         } else if (ph->phy_id == 0x8201) {
  57                 ph->phy_vendor = "Realtek";
  58                 ph->phy_model = "RTL8201";
  59                 ph->phy_check = rtl8201_check;
  60                 return (B_TRUE);
  61         } else {
  62                 return (B_FALSE);
  63         }
  64 }
  65
  66 static int
  67 rtl8139_check(phy_handle_t *ph)
  68 {
  69         int             rv;
  70         uint16_t        s;
  71
  72         rv = phy_check(ph);
  73
  74         /*
  75          * We possibly override settings, so that we can use the PHYs
  76          * autodetected link speed if the partner isn't doing NWay.
  77          */
  78         s = phy_read(ph, MII_VENDOR(0));
  79         if (s & (1 << 2)) {
  80                 ph->phy_link = LINK_STATE_DOWN;
  81         } else {
  82                 ph->phy_link = LINK_STATE_UP;
  83                 if (s & (1 << 3)) {
  84                         ph->phy_speed = 10;
  85                 } else {
  86                         ph->phy_speed = 100;
  87                 }
  88         }
  89
  90         return (rv);
  91 }
  92
  93 static int
  94 rtl8201_check(phy_handle_t *ph)
  95 {
  96         int             rv;
  97         uint16_t        s;
  98
  99         rv = phy_check(ph);
 100
 101         /*
 102          * We possibly override settings, so that we can use the PHYs
 103          * autodetected link speed if the partner isn't doing NWay.
 104          */
 105         s = phy_read(ph, MII_VENDOR(9));
 106         if (s & (1 << 0)) {
 107                 ph->phy_link = LINK_STATE_UP;
 108                 ph->phy_speed = 100;
 109         } else if (s & (1 << 1)) {
 110                 ph->phy_link = LINK_STATE_UP;
 111                 ph->phy_speed = 10;
 112         } else {
 113                 ph->phy_link = LINK_STATE_DOWN;
 114         }
 115
 116         return (rv);
 117 }