drivers/net/phy/smsc.c

   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
  43 static 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
  53 static 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
  60 static int smsc_phy_config_init(struct phy_device *phydev)
  61 {
  62         return smsc_phy_ack_interrupt (phydev);
  63 }
  64
  65
  66 static 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         .suspend        = genphy_suspend,
  85         .resume         = genphy_resume,
  86
  87         .driver         = { .owner = THIS_MODULE, }
  88 };
  89
  90 static struct phy_driver lan8187_driver = {
  91         .phy_id         = 0x0007c0b0, /* OUI=0x00800f, Model#=0x0b */
  92         .phy_id_mask    = 0xfffffff0,
  93         .name           = "SMSC LAN8187",
  94
  95         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
  96                                 | SUPPORTED_Asym_Pause),
  97         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
  98
  99         /* basic functions */
 100         .config_aneg    = genphy_config_aneg,
 101         .read_status    = genphy_read_status,
 102         .config_init    = smsc_phy_config_init,
 103
 104         /* IRQ related */
 105         .ack_interrupt  = smsc_phy_ack_interrupt,
 106         .config_intr    = smsc_phy_config_intr,
 107
 108         .suspend        = genphy_suspend,
 109         .resume         = genphy_resume,
 110
 111         .driver         = { .owner = THIS_MODULE, }
 112 };
 113
 114 static struct phy_driver lan8700_driver = {
 115         .phy_id         = 0x0007c0c0, /* OUI=0x00800f, Model#=0x0c */
 116         .phy_id_mask    = 0xfffffff0,
 117         .name           = "SMSC LAN8700",
 118
 119         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
 120                                 | SUPPORTED_Asym_Pause),
 121         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
 122
 123         /* basic functions */
 124         .config_aneg    = genphy_config_aneg,
 125         .read_status    = genphy_read_status,
 126         .config_init    = smsc_phy_config_init,
 127
 128         /* IRQ related */
 129         .ack_interrupt  = smsc_phy_ack_interrupt,
 130         .config_intr    = smsc_phy_config_intr,
 131
 132         .suspend        = genphy_suspend,
 133         .resume         = genphy_resume,
 134
 135         .driver         = { .owner = THIS_MODULE, }
 136 };
 137
 138 static struct phy_driver lan911x_int_driver = {
 139         .phy_id         = 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
 140         .phy_id_mask    = 0xfffffff0,
 141         .name           = "SMSC LAN911x Internal PHY",
 142
 143         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
 144                                 | SUPPORTED_Asym_Pause),
 145         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
 146
 147         /* basic functions */
 148         .config_aneg    = genphy_config_aneg,
 149         .read_status    = genphy_read_status,
 150         .config_init    = smsc_phy_config_init,
 151
 152         /* IRQ related */
 153         .ack_interrupt  = smsc_phy_ack_interrupt,
 154         .config_intr    = smsc_phy_config_intr,
 155
 156         .suspend        = genphy_suspend,
 157         .resume         = genphy_resume,
 158
 159         .driver         = { .owner = THIS_MODULE, }
 160 };
 161
 162 static int __init smsc_init(void)
 163 {
 164         int ret;
 165
 166         ret = phy_driver_register (&lan83c185_driver);
 167         if (ret)
 168                 goto err1;
 169
 170         ret = phy_driver_register (&lan8187_driver);
 171         if (ret)
 172                 goto err2;
 173
 174         ret = phy_driver_register (&lan8700_driver);
 175         if (ret)
 176                 goto err3;
 177
 178         ret = phy_driver_register (&lan911x_int_driver);
 179         if (ret)
 180                 goto err4;
 181
 182         return 0;
 183
 184 err4:
 185         phy_driver_unregister (&lan8700_driver);
 186 err3:
 187         phy_driver_unregister (&lan8187_driver);
 188 err2:
 189         phy_driver_unregister (&lan83c185_driver);
 190 err1:
 191         return ret;
 192 }
 193
 194 static void __exit smsc_exit(void)
 195 {
 196         phy_driver_unregister (&lan911x_int_driver);
 197         phy_driver_unregister (&lan8700_driver);
 198         phy_driver_unregister (&lan8187_driver);
 199         phy_driver_unregister (&lan83c185_driver);
 200 }
 201
 202 MODULE_DESCRIPTION("SMSC PHY driver");
 203 MODULE_AUTHOR("Herbert Valerio Riedel");
 204 MODULE_LICENSE("GPL");
 205
 206 module_init(smsc_init);
 207 module_exit(smsc_exit);