diff options
Diffstat (limited to 'drivers/net/usb/dm9601.c')
| -rw-r--r-- | drivers/net/usb/dm9601.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index edd244f3acb5..5b67bbf1987e 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -23,7 +23,7 @@ #include <linux/usb/usbnet.h> /* datasheet: - http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf + http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf */ /* control requests */ @@ -397,16 +397,24 @@ static void dm9601_set_multicast(struct net_device *net) dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl); } +static void __dm9601_set_mac_address(struct usbnet *dev) +{ + dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr); +} + static int dm9601_set_mac_address(struct net_device *net, void *p) { struct sockaddr *addr = p; struct usbnet *dev = netdev_priv(net); - if (!is_valid_ether_addr(addr->sa_data)) + if (!is_valid_ether_addr(addr->sa_data)) { + dev_err(&net->dev, "not setting invalid mac address %pM\n", + addr->sa_data); return -EINVAL; + } memcpy(net->dev_addr, addr->sa_data, net->addr_len); - dm_write_async(dev, DM_PHY_ADDR, net->addr_len, net->dev_addr); + __dm9601_set_mac_address(dev); return 0; } @@ -414,6 +422,7 @@ static int dm9601_set_mac_address(struct net_device *net, void *p) static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf) { int ret; + u8 mac[ETH_ALEN]; ret = usbnet_get_endpoints(dev, intf); if (ret) @@ -438,12 +447,24 @@ static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf) udelay(20); /* read MAC */ - if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr) < 0) { + if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) { printk(KERN_ERR "Error reading MAC address\n"); ret = -ENODEV; goto out; } + /* + * Overwrite the auto-generated address only with good ones. + */ + if (is_valid_ether_addr(mac)) + memcpy(dev->net->dev_addr, mac, ETH_ALEN); + else { + printk(KERN_WARNING + "dm9601: No valid MAC address in EEPROM, using %pM\n", + dev->net->dev_addr); + __dm9601_set_mac_address(dev); + } + /* power up phy */ dm_write_reg(dev, DM_GPR_CTRL, 1); dm_write_reg(dev, DM_GPR_DATA, 0); |