1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013 Luiz Otavio O Souza. 5 * Copyright (c) 2011-2012 Stefan Bethke. 6 * Copyright (c) 2012 Adrian Chadd. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/errno.h> 36 #include <sys/kernel.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/systm.h> 40 #include <sys/socket.h> 41 42 #include <net/if.h> 43 44 #include <dev/mii/mii.h> 45 46 #include <dev/etherswitch/etherswitch.h> 47 #include <dev/etherswitch/ip17x/ip17x_phy.h> 48 #include <dev/etherswitch/ip17x/ip17x_reg.h> 49 #include <dev/etherswitch/ip17x/ip17x_var.h> 50 51 #include "mdio_if.h" 52 #include "miibus_if.h" 53 #include "etherswitch_if.h" 54 55 int 56 ip17x_readphy(device_t dev, int phy, int reg) 57 { 58 struct ip17x_softc *sc; 59 int data; 60 61 sc = device_get_softc(dev); 62 IP17X_LOCK_ASSERT(sc, MA_NOTOWNED); 63 64 if (phy < 0 || phy >= 32) 65 return (ENXIO); 66 if (reg < 0 || reg >= 32) 67 return (ENXIO); 68 69 IP17X_LOCK(sc); 70 data = MDIO_READREG(device_get_parent(dev), phy, reg); 71 IP17X_UNLOCK(sc); 72 73 return (data); 74 } 75 76 int 77 ip17x_writephy(device_t dev, int phy, int reg, int data) 78 { 79 struct ip17x_softc *sc; 80 int err; 81 82 sc = device_get_softc(dev); 83 IP17X_LOCK_ASSERT(sc, MA_NOTOWNED); 84 85 if (phy < 0 || phy >= 32) 86 return (ENXIO); 87 if (reg < 0 || reg >= 32) 88 return (ENXIO); 89 90 IP17X_LOCK(sc); 91 err = MDIO_WRITEREG(device_get_parent(dev), phy, reg, data); 92 IP17X_UNLOCK(sc); 93 94 return (err); 95 } 96 97 int 98 ip17x_updatephy(device_t dev, int phy, int reg, int mask, int value) 99 { 100 int val; 101 102 val = ip17x_readphy(dev, phy, reg); 103 val &= ~mask; 104 val |= value; 105 return (ip17x_writephy(dev, phy, reg, val)); 106 } 107