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_ */