tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * drivers/net/phy/smsc.c
3 *
4 * Driver for SMSC PHYs
5 *
6 * Author: Herbert Valerio Riedel
7 *
8 * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * Support added for SMSC LAN8187 and LAN8700 by steve.glendinning@smsc.com
16 *
17 */
18
19#include <linux/kernel.h>
20#include <linux/module.h>
21#include <linux/mii.h>
22#include <linux/ethtool.h>
23#include <linux/phy.h>
24#include <linux/netdevice.h>
25
26#define MII_LAN83C185_ISF 29 /* Interrupt Source Flags */
27#define MII_LAN83C185_IM 30 /* Interrupt Mask */
28
29#define MII_LAN83C185_ISF_INT1 (1<<1) /* Auto-Negotiation Page Received */
30#define MII_LAN83C185_ISF_INT2 (1<<2) /* Parallel Detection Fault */
31#define MII_LAN83C185_ISF_INT3 (1<<3) /* Auto-Negotiation LP Ack */
32#define MII_LAN83C185_ISF_INT4 (1<<4) /* Link Down */
33#define MII_LAN83C185_ISF_INT5 (1<<5) /* Remote Fault Detected */
34#define MII_LAN83C185_ISF_INT6 (1<<6) /* Auto-Negotiation complete */
35#define MII_LAN83C185_ISF_INT7 (1<<7) /* ENERGYON */
36
37#define MII_LAN83C185_ISF_INT_ALL (0x0e)
38
39#define MII_LAN83C185_ISF_INT_PHYLIB_EVENTS \
40 (MII_LAN83C185_ISF_INT6 | MII_LAN83C185_ISF_INT4)
41
42
43static int smsc_phy_config_intr(struct phy_device *phydev)
44{
45 int rc = phy_write (phydev, MII_LAN83C185_IM,
46 ((PHY_INTERRUPT_ENABLED == phydev->interrupts)
47 ? MII_LAN83C185_ISF_INT_PHYLIB_EVENTS
48 : 0));
49
50 return rc < 0 ? rc : 0;
51}
52
53static int smsc_phy_ack_interrupt(struct phy_device *phydev)
54{
55 int rc = phy_read (phydev, MII_LAN83C185_ISF);
56
57 return rc < 0 ? rc : 0;
58}
59
60static int smsc_phy_config_init(struct phy_device *phydev)
61{
62 return smsc_phy_ack_interrupt (phydev);
63}
64
65
66static struct phy_driver lan83c185_driver = {
67 .phy_id = 0x0007c0a0, /* OUI=0x00800f, Model#=0x0a */
68 .phy_id_mask = 0xfffffff0,
69 .name = "SMSC LAN83C185",
70
71 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
72 | SUPPORTED_Asym_Pause),
73 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
74
75 /* basic functions */
76 .config_aneg = genphy_config_aneg,
77 .read_status = genphy_read_status,
78 .config_init = smsc_phy_config_init,
79
80 /* IRQ related */
81 .ack_interrupt = smsc_phy_ack_interrupt,
82 .config_intr = smsc_phy_config_intr,
83
84 .driver = { .owner = THIS_MODULE, }
85};
86
87static struct phy_driver lan8187_driver = {
88 .phy_id = 0x0007c0b0, /* OUI=0x00800f, Model#=0x0b */
89 .phy_id_mask = 0xfffffff0,
90 .name = "SMSC LAN8187",
91
92 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
93 | SUPPORTED_Asym_Pause),
94 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
95
96 /* basic functions */
97 .config_aneg = genphy_config_aneg,
98 .read_status = genphy_read_status,
99 .config_init = smsc_phy_config_init,
100
101 /* IRQ related */
102 .ack_interrupt = smsc_phy_ack_interrupt,
103 .config_intr = smsc_phy_config_intr,
104
105 .driver = { .owner = THIS_MODULE, }
106};
107
108static struct phy_driver lan8700_driver = {
109 .phy_id = 0x0007c0c0, /* OUI=0x00800f, Model#=0x0c */
110 .phy_id_mask = 0xfffffff0,
111 .name = "SMSC LAN8700",
112
113 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
114 | SUPPORTED_Asym_Pause),
115 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
116
117 /* basic functions */
118 .config_aneg = genphy_config_aneg,
119 .read_status = genphy_read_status,
120 .config_init = smsc_phy_config_init,
121
122 /* IRQ related */
123 .ack_interrupt = smsc_phy_ack_interrupt,
124 .config_intr = smsc_phy_config_intr,
125
126 .driver = { .owner = THIS_MODULE, }
127};
128
129static int __init smsc_init(void)
130{
131 int ret;
132
133 ret = phy_driver_register (&lan83c185_driver);
134 if (ret)
135 goto err1;
136
137 ret = phy_driver_register (&lan8187_driver);
138 if (ret)
139 goto err2;
140
141 ret = phy_driver_register (&lan8700_driver);
142 if (ret)
143 goto err3;
144
145 return 0;
146
147err3:
148 phy_driver_unregister (&lan8187_driver);
149err2:
150 phy_driver_unregister (&lan83c185_driver);
151err1:
152 return ret;
153}
154
155static void __exit smsc_exit(void)
156{
157 phy_driver_unregister (&lan8700_driver);
158 phy_driver_unregister (&lan8187_driver);
159 phy_driver_unregister (&lan83c185_driver);
160}
161
162MODULE_DESCRIPTION("SMSC PHY driver");
163MODULE_AUTHOR("Herbert Valerio Riedel");
164MODULE_LICENSE("GPL");
165
166module_init(smsc_init);
167module_exit(smsc_exit);