PageRenderTime 30ms CodeModel.GetById 15ms app.highlight 12ms RepoModel.GetById 1ms app.codeStats 0ms

/drivers/net/ethernet/chelsio/cxgb/cphy.h

http://github.com/mirrors/linux
C Header | 174 lines | 102 code | 25 blank | 47 comment | 1 complexity | 9a4859c1739d09e24171ceb73922ad3a MD5 | raw file
  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
 43struct 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 */
 53enum {
 54	cphy_cause_link_change = 0x1,
 55	cphy_cause_error = 0x2,
 56	cphy_cause_fifo_error = 0x3
 57};
 58
 59enum {
 60	PHY_LINK_UP = 0x1,
 61	PHY_AUTONEG_RDY = 0x2,
 62	PHY_AUTONEG_EN = 0x4
 63};
 64
 65struct cphy;
 66
 67/* PHY operations */
 68struct 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 */
 91struct 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 */
110static 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
119static 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
126static 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
132static 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 */
139static 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 */
157struct 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
169extern const struct gphy t1_my3126_ops;
170extern const struct gphy t1_mv88e1xxx_ops;
171extern const struct gphy t1_vsc8244_ops;
172extern const struct gphy t1_mv88x201x_ops;
173
174#endif /* _CXGB_CPHY_H_ */