[kernel] revert 15922 - add back 2.6.29 kernel support
[openwrt.git] / target / linux / generic-2.6 / patches-2.6.29 / 600-phy_extension.patch
1 --- a/drivers/net/phy/phy.c
2 +++ b/drivers/net/phy/phy.c
3 @@ -299,6 +299,50 @@ int phy_ethtool_gset(struct phy_device *
4  }
5  EXPORT_SYMBOL(phy_ethtool_gset);
6  
7 +int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr)
8 +{
9 +       u32 cmd;
10 +       int tmp;
11 +       struct ethtool_cmd ecmd = { ETHTOOL_GSET };
12 +       struct ethtool_value edata = { ETHTOOL_GLINK };
13 +
14 +       if (get_user(cmd, (u32 *) useraddr))
15 +               return -EFAULT;
16 +
17 +       switch (cmd) {
18 +       case ETHTOOL_GSET:
19 +               phy_ethtool_gset(phydev, &ecmd);
20 +               if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
21 +                       return -EFAULT;
22 +               return 0;
23 +
24 +       case ETHTOOL_SSET:
25 +               if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
26 +                       return -EFAULT;
27 +               return phy_ethtool_sset(phydev, &ecmd);
28 +
29 +       case ETHTOOL_NWAY_RST:
30 +               /* if autoneg is off, it's an error */
31 +               tmp = phy_read(phydev, MII_BMCR);
32 +               if (tmp & BMCR_ANENABLE) {
33 +                       tmp |= (BMCR_ANRESTART);
34 +                       phy_write(phydev, MII_BMCR, tmp);
35 +                       return 0;
36 +               }
37 +               return -EINVAL;
38 +
39 +       case ETHTOOL_GLINK:
40 +               edata.data = (phy_read(phydev,
41 +                               MII_BMSR) & BMSR_LSTATUS) ? 1 : 0;
42 +               if (copy_to_user(useraddr, &edata, sizeof(edata)))
43 +                       return -EFAULT;
44 +               return 0;
45 +       }
46 +
47 +       return -EOPNOTSUPP;
48 +}
49 +EXPORT_SYMBOL(phy_ethtool_ioctl);
50 +
51  /**
52   * phy_mii_ioctl - generic PHY MII ioctl interface
53   * @phydev: the phy_device struct
54 @@ -355,8 +399,8 @@ int phy_mii_ioctl(struct phy_device *phy
55                 }
56  
57                 phy_write(phydev, mii_data->reg_num, val);
58 -               
59 -               if (mii_data->reg_num == MII_BMCR 
60 +
61 +               if (mii_data->reg_num == MII_BMCR
62                                 && val & BMCR_RESET
63                                 && phydev->drv->config_init) {
64                         phy_scan_fixups(phydev);
65 @@ -476,7 +520,7 @@ static void phy_force_reduction(struct p
66         int idx;
67  
68         idx = phy_find_setting(phydev->speed, phydev->duplex);
69 -       
70 +
71         idx++;
72  
73         idx = phy_find_valid(idx, phydev->supported);
74 --- a/include/linux/phy.h
75 +++ b/include/linux/phy.h
76 @@ -478,6 +478,7 @@ void phy_start_machine(struct phy_device
77  void phy_stop_machine(struct phy_device *phydev);
78  int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
79  int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
80 +int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr);
81  int phy_mii_ioctl(struct phy_device *phydev,
82                 struct mii_ioctl_data *mii_data, int cmd);
83  int phy_start_interrupts(struct phy_device *phydev);