1 /***************************************************************************** 2 * * 3 * File: cphy.h * 4 * $Revision: 1.7 $ * 5 * $Date: 2005/06/21 18:29:47 $ * 6 * Description: * 7 * part of the Chelsio 10Gb Ethernet Driver. * 8 * * 9 * This program is free software; you can redistribute it and/or modify * 10 * it under the terms of the GNU General Public License, version 2, as * 11 * published by the Free Software Foundation. * 12 * * 13 * You should have received a copy of the GNU General Public License along * 14 * with this program; if not, see <http://www.gnu.org/licenses/>. * 15 * * 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * 17 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * 19 * * 20 * http://www.chelsio.com * 21 * * 22 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * 23 * All rights reserved. * 24 * * 25 * Maintainers: maintainers@chelsio.com * 26 * * 27 * Authors: Dimitrios Michailidis <dm@chelsio.com> * 28 * Tina Yang <tainay@chelsio.com> * 29 * Felix Marti <felix@chelsio.com> * 30 * Scott Bardone <sbardone@chelsio.com> * 31 * Kurt Ottaway <kottaway@chelsio.com> * 32 * Frank DiMambro <frank@chelsio.com> * 33 * * 34 * History: * 35 * * 36 ****************************************************************************/ 37 38 #ifndef _CXGB_CPHY_H_ 39 #define _CXGB_CPHY_H_ 40 41 #include "common.h" 42 43 struct mdio_ops { 44 void (*init)(adapter_t *adapter, const struct board_info *bi); 45 int (*read)(struct net_device *dev, int phy_addr, int mmd_addr, 46 u16 reg_addr); 47 int (*write)(struct net_device *dev, int phy_addr, int mmd_addr, 48 u16 reg_addr, u16 val); 49 unsigned mode_support; 50 }; 51 52 /* PHY interrupt types */ 53 enum { 54 cphy_cause_link_change = 0x1, 55 cphy_cause_error = 0x2, 56 cphy_cause_fifo_error = 0x3 57 }; 58 59 enum { 60 PHY_LINK_UP = 0x1, 61 PHY_AUTONEG_RDY = 0x2, 62 PHY_AUTONEG_EN = 0x4 63 }; 64 65 struct cphy; 66 67 /* PHY operations */ 68 struct cphy_ops { 69 void (*destroy)(struct cphy *); 70 int (*reset)(struct cphy *, int wait); 71 72 int (*interrupt_enable)(struct cphy *); 73 int (*interrupt_disable)(struct cphy *); 74 int (*interrupt_clear)(struct cphy *); 75 int (*interrupt_handler)(struct cphy *); 76 77 int (*autoneg_enable)(struct cphy *); 78 int (*autoneg_disable)(struct cphy *); 79 int (*autoneg_restart)(struct cphy *); 80 81 int (*advertise)(struct cphy *phy, unsigned int advertise_map); 82 int (*set_loopback)(struct cphy *, int on); 83 int (*set_speed_duplex)(struct cphy *phy, int speed, int duplex); 84 int (*get_link_status)(struct cphy *phy, int *link_ok, int *speed, 85 int *duplex, int *fc); 86 87 u32 mmds; 88 }; 89 90 /* A PHY instance */ 91 struct cphy { 92 int state; /* Link status state machine */ 93 adapter_t *adapter; /* associated adapter */ 94 95 struct delayed_work phy_update; 96 97 u16 bmsr; 98 int count; 99 int act_count; 100 int act_on; 101 102 u32 elmer_gpo; 103 104 const struct cphy_ops *ops; /* PHY operations */ 105 struct mdio_if_info mdio; 106 struct cphy_instance *instance; 107 }; 108 109 /* Convenience MDIO read/write wrappers */ 110 static inline int cphy_mdio_read(struct cphy *cphy, int mmd, int reg, 111 unsigned int *valp) 112 { 113 int rc = cphy->mdio.mdio_read(cphy->mdio.dev, cphy->mdio.prtad, mmd, 114 reg); 115 *valp = (rc >= 0) ? rc : -1; 116 return (rc >= 0) ? 0 : rc; 117 } 118 119 static inline int cphy_mdio_write(struct cphy *cphy, int mmd, int reg, 120 unsigned int val) 121 { 122 return cphy->mdio.mdio_write(cphy->mdio.dev, cphy->mdio.prtad, mmd, 123 reg, val); 124 } 125 126 static inline int simple_mdio_read(struct cphy *cphy, int reg, 127 unsigned int *valp) 128 { 129 return cphy_mdio_read(cphy, MDIO_DEVAD_NONE, reg, valp); 130 } 131 132 static inline int simple_mdio_write(struct cphy *cphy, int reg, 133 unsigned int val) 134 { 135 return cphy_mdio_write(cphy, MDIO_DEVAD_NONE, reg, val); 136 } 137 138 /* Convenience initializer */ 139 static inline void cphy_init(struct cphy *phy, struct net_device *dev, 140 int phy_addr, const struct cphy_ops *phy_ops, 141 const struct mdio_ops *mdio_ops) 142 { 143 struct adapter *adapter = netdev_priv(dev); 144 phy->adapter = adapter; 145 phy->ops = phy_ops; 146 if (mdio_ops) { 147 phy->mdio.prtad = phy_addr; 148 phy->mdio.mmds = phy_ops->mmds; 149 phy->mdio.mode_support = mdio_ops->mode_support; 150 phy->mdio.mdio_read = mdio_ops->read; 151 phy->mdio.mdio_write = mdio_ops->write; 152 } 153 phy->mdio.dev = dev; 154 } 155 156 /* Operations of the PHY-instance factory */ 157 struct gphy { 158 /* Construct a PHY instance with the given PHY address */ 159 struct cphy *(*create)(struct net_device *dev, int phy_addr, 160 const struct mdio_ops *mdio_ops); 161 162 /* 163 * Reset the PHY chip. This resets the whole PHY chip, not individual 164 * ports. 165 */ 166 int (*reset)(adapter_t *adapter); 167 }; 168 169 extern const struct gphy t1_my3126_ops; 170 extern const struct gphy t1_mv88e1xxx_ops; 171 extern const struct gphy t1_vsc8244_ops; 172 extern const struct gphy t1_mv88x201x_ops; 173 174 #endif /* _CXGB_CPHY_H_ */ 175