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