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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, write to the Free Software Foundation, Inc., *
15 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
16 * *
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
20 * *
21 * http://www.chelsio.com *
22 * *
23 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
24 * All rights reserved. *
25 * *
26 * Maintainers: maintainers@chelsio.com *
27 * *
28 * Authors: Dimitrios Michailidis <dm@chelsio.com> *
29 * Tina Yang <tainay@chelsio.com> *
30 * Felix Marti <felix@chelsio.com> *
31 * Scott Bardone <sbardone@chelsio.com> *
32 * Kurt Ottaway <kottaway@chelsio.com> *
33 * Frank DiMambro <frank@chelsio.com> *
34 * *
35 * History: *
36 * *
37 ****************************************************************************/
38
39#ifndef _CXGB_CPHY_H_
40#define _CXGB_CPHY_H_
41
42#include "common.h"
43
44struct mdio_ops {
45 void (*init)(adapter_t *adapter, const struct board_info *bi);
46 int (*read)(struct net_device *dev, int phy_addr, int mmd_addr,
47 u16 reg_addr);
48 int (*write)(struct net_device *dev, int phy_addr, int mmd_addr,
49 u16 reg_addr, u16 val);
50 unsigned mode_support;
51};
52
53/* PHY interrupt types */
54enum {
55 cphy_cause_link_change = 0x1,
56 cphy_cause_error = 0x2,
57 cphy_cause_fifo_error = 0x3
58};
59
60enum {
61 PHY_LINK_UP = 0x1,
62 PHY_AUTONEG_RDY = 0x2,
63 PHY_AUTONEG_EN = 0x4
64};
65
66struct cphy;
67
68/* PHY operations */
69struct cphy_ops {
70 void (*destroy)(struct cphy *);
71 int (*reset)(struct cphy *, int wait);
72
73 int (*interrupt_enable)(struct cphy *);
74 int (*interrupt_disable)(struct cphy *);
75 int (*interrupt_clear)(struct cphy *);
76 int (*interrupt_handler)(struct cphy *);
77
78 int (*autoneg_enable)(struct cphy *);
79 int (*autoneg_disable)(struct cphy *);
80 int (*autoneg_restart)(struct cphy *);
81
82 int (*advertise)(struct cphy *phy, unsigned int advertise_map);
83 int (*set_loopback)(struct cphy *, int on);
84 int (*set_speed_duplex)(struct cphy *phy, int speed, int duplex);
85 int (*get_link_status)(struct cphy *phy, int *link_ok, int *speed,
86 int *duplex, int *fc);
87
88 u32 mmds;
89};
90
91/* A PHY instance */
92struct cphy {
93 int state; /* Link status state machine */
94 adapter_t *adapter; /* associated adapter */
95
96 struct delayed_work phy_update;
97
98 u16 bmsr;
99 int count;
100 int act_count;
101 int act_on;
102
103 u32 elmer_gpo;
104
105 const struct cphy_ops *ops; /* PHY operations */
106 struct mdio_if_info mdio;
107 struct cphy_instance *instance;
108};
109
110/* Convenience MDIO read/write wrappers */
111static inline int cphy_mdio_read(struct cphy *cphy, int mmd, int reg,
112 unsigned int *valp)
113{
114 int rc = cphy->mdio.mdio_read(cphy->mdio.dev, cphy->mdio.prtad, mmd,
115 reg);
116 *valp = (rc >= 0) ? rc : -1;
117 return (rc >= 0) ? 0 : rc;
118}
119
120static inline int cphy_mdio_write(struct cphy *cphy, int mmd, int reg,
121 unsigned int val)
122{
123 return cphy->mdio.mdio_write(cphy->mdio.dev, cphy->mdio.prtad, mmd,
124 reg, val);
125}
126
127static inline int simple_mdio_read(struct cphy *cphy, int reg,
128 unsigned int *valp)
129{
130 return cphy_mdio_read(cphy, MDIO_DEVAD_NONE, reg, valp);
131}
132
133static inline int simple_mdio_write(struct cphy *cphy, int reg,
134 unsigned int val)
135{
136 return cphy_mdio_write(cphy, MDIO_DEVAD_NONE, reg, val);
137}
138
139/* Convenience initializer */
140static inline void cphy_init(struct cphy *phy, struct net_device *dev,
141 int phy_addr, struct cphy_ops *phy_ops,
142 const struct mdio_ops *mdio_ops)
143{
144 struct adapter *adapter = netdev_priv(dev);
145 phy->adapter = adapter;
146 phy->ops = phy_ops;
147 if (mdio_ops) {
148 phy->mdio.prtad = phy_addr;
149 phy->mdio.mmds = phy_ops->mmds;
150 phy->mdio.mode_support = mdio_ops->mode_support;
151 phy->mdio.mdio_read = mdio_ops->read;
152 phy->mdio.mdio_write = mdio_ops->write;
153 }
154 phy->mdio.dev = dev;
155}
156
157/* Operations of the PHY-instance factory */
158struct gphy {
159 /* Construct a PHY instance with the given PHY address */
160 struct cphy *(*create)(struct net_device *dev, int phy_addr,
161 const struct mdio_ops *mdio_ops);
162
163 /*
164 * Reset the PHY chip. This resets the whole PHY chip, not individual
165 * ports.
166 */
167 int (*reset)(adapter_t *adapter);
168};
169
170extern const struct gphy t1_my3126_ops;
171extern const struct gphy t1_mv88e1xxx_ops;
172extern const struct gphy t1_vsc8244_ops;
173extern const struct gphy t1_mv88x201x_ops;
174
175#endif /* _CXGB_CPHY_H_ */