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[PATCH] sky2: add MII support

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Add MII ioctl interface to sky2.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
shemminger@osdl.org 2005-11-30 11:45:12 -08:00 committed by Jeff Garzik
parent 2143764348
commit ef743d3359
1 changed files with 61 additions and 8 deletions
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67
drivers/net/sky2.c
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@ -47,6 +47,7 @@
#include <linux/in.h>
#include <linux/delay.h>
#include <linux/if_vlan.h>
#include <linux/mii.h>
#include <asm/irq.h>
@ -136,7 +137,7 @@ static const char *yukon_name[] = {
/* Access to external PHY */
static void gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
{
int i;
@ -146,13 +147,15 @@ static void gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
for (i = 0; i < PHY_RETRIES; i++) {
if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
return;
return 0;
udelay(1);
}
printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name);
return -ETIMEDOUT;
}
static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val)
{
int i;
@ -160,14 +163,24 @@ static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
| GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
for (i = 0; i < PHY_RETRIES; i++) {
if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
goto ready;
if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) {
*val = gma_read16(hw, port, GM_SMI_DATA);
return 0;
}
udelay(1);
}
return -ETIMEDOUT;
}
static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
{
u16 v;
if (__gm_phy_read(hw, port, reg, &v) != 0)
printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name);
ready:
return gma_read16(hw, port, GM_SMI_DATA);
return v;
}
static int sky2_set_power_state(struct sky2_hw *hw, pci_power_t state)
@ -792,6 +805,44 @@ static void sky2_rx_clean(struct sky2_port *sky2)
}
}
/* Basic MII support */
static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct mii_ioctl_data *data = if_mii(ifr);
struct sky2_port *sky2 = netdev_priv(dev);
struct sky2_hw *hw = sky2->hw;
int err = -EOPNOTSUPP;
if (!netif_running(dev))
return -ENODEV; /* Phy still in reset */
switch(cmd) {
case SIOCGMIIPHY:
data->phy_id = PHY_ADDR_MARV;
/* fallthru */
case SIOCGMIIREG: {
u16 val = 0;
spin_lock_bh(&hw->phy_lock);
err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
spin_unlock_bh(&hw->phy_lock);
data->val_out = val;
break;
}
case SIOCSMIIREG:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
spin_lock_bh(&hw->phy_lock);
err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
data->val_in);
spin_unlock_bh(&hw->phy_lock);
break;
}
return err;
}
#ifdef SKY2_VLAN_TAG_USED
static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
{
@ -2708,8 +2759,10 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
SET_MODULE_OWNER(dev);
SET_NETDEV_DEV(dev, &hw->pdev->dev);
dev->irq = hw->pdev->irq;
dev->open = sky2_up;
dev->stop = sky2_down;
dev->do_ioctl = sky2_ioctl;
dev->hard_start_xmit = sky2_xmit_frame;
dev->get_stats = sky2_get_stats;
dev->set_multicast_list = sky2_set_multicast;