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smsc95xx: support ethtool get_regs

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Inspired by implementation in smsc911x.c and smsc9420.c
Tested on ARM/pandaboard running android

Signed-off-by: Emeric Vigier <emeric.vigier@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Emeric Vigier 2012-07-09 17:44:45 -04:00 committed by David S. Miller
parent 36efc94b1d
commit 9fa32e94dc
1 changed files with 31 additions and 0 deletions
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31
drivers/net/usb/smsc95xx.c
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@ -578,6 +578,35 @@ static int smsc95xx_ethtool_set_eeprom(struct net_device *netdev,
return smsc95xx_write_eeprom(dev, ee->offset, ee->len, data);
}
static int smsc95xx_ethtool_getregslen(struct net_device *netdev)
{
/* all smsc95xx registers */
return COE_CR - ID_REV + 1;
}
static void
smsc95xx_ethtool_getregs(struct net_device *netdev, struct ethtool_regs *regs,
void *buf)
{
struct usbnet *dev = netdev_priv(netdev);
unsigned int i, j, retval;
u32 *data = buf;
retval = smsc95xx_read_reg(dev, ID_REV, &regs->version);
if (retval < 0) {
netdev_warn(netdev, "REGS: cannot read ID_REV\n");
return;
}
for (i = ID_REV, j = 0; i <= COE_CR; i += (sizeof(u32)), j++) {
retval = smsc95xx_read_reg(dev, i, &data[j]);
if (retval < 0) {
netdev_warn(netdev, "REGS: cannot read reg[%x]\n", i);
return;
}
}
}
static const struct ethtool_ops smsc95xx_ethtool_ops = {
.get_link = usbnet_get_link,
.nway_reset = usbnet_nway_reset,
@ -589,6 +618,8 @@ static const struct ethtool_ops smsc95xx_ethtool_ops = {
.get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
.get_eeprom = smsc95xx_ethtool_get_eeprom,
.set_eeprom = smsc95xx_ethtool_set_eeprom,
.get_regs_len = smsc95xx_ethtool_getregslen,
.get_regs = smsc95xx_ethtool_getregs,
};
static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)