1 // SPDX-License-Identifier: GPL-2.0-or-later
9  * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
12  * Copyright (c) 2002-2003 TiVo Inc.
19 	struct mii_bus *mdio;  member
31 	struct phy_device *phydev = netdev->phydev;  in ax88172a_adjust_link()
33 	struct ax88172a_private *priv = dev->driver_priv;  in ax88172a_adjust_link()
36 	if (phydev->link) {  in ax88172a_adjust_link()
39 		if (phydev->duplex == DUPLEX_HALF)  in ax88172a_adjust_link()
42 		if (phydev->speed != SPEED_100)  in ax88172a_adjust_link()
46 	if (mode != priv->oldmode) {  in ax88172a_adjust_link()
48 		priv->oldmode = mode;  in ax88172a_adjust_link()
50 			   phydev->speed, phydev->duplex, mode);  in ax88172a_adjust_link()
63 	struct ax88172a_private *priv = dev->driver_priv;  in ax88172a_init_mdio()
66 	priv->mdio = mdiobus_alloc();  in ax88172a_init_mdio()
67 	if (!priv->mdio) {  in ax88172a_init_mdio()
68 		netdev_err(dev->net, "Could not allocate MDIO bus\n");  in ax88172a_init_mdio()
69 		return -ENOMEM;  in ax88172a_init_mdio()
72 	priv->mdio->priv = (void *)dev;  in ax88172a_init_mdio()
73 	priv->mdio->read = &asix_mdio_bus_read;  in ax88172a_init_mdio()
74 	priv->mdio->write = &asix_mdio_bus_write;  in ax88172a_init_mdio()
75 	priv->mdio->name = "Asix MDIO Bus";  in ax88172a_init_mdio()
76 	/* mii bus name is usb-<usb bus number>-<usb device number> */  in ax88172a_init_mdio()
77 	snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",  in ax88172a_init_mdio()
78 		 dev->udev->bus->busnum, dev->udev->devnum);  in ax88172a_init_mdio()
80 	ret = mdiobus_register(priv->mdio);  in ax88172a_init_mdio()
82 		netdev_err(dev->net, "Could not register MDIO bus\n");  in ax88172a_init_mdio()
86 	netdev_info(dev->net, "registered mdio bus %s\n", priv->mdio->id);  in ax88172a_init_mdio()
90 	mdiobus_free(priv->mdio);  in ax88172a_init_mdio()
96 	struct ax88172a_private *priv = dev->driver_priv;  in ax88172a_remove_mdio()
98 	netdev_info(dev->net, "deregistering mdio bus %s\n", priv->mdio->id);  in ax88172a_remove_mdio()
99 	mdiobus_unregister(priv->mdio);  in ax88172a_remove_mdio()
100 	mdiobus_free(priv->mdio);  in ax88172a_remove_mdio()
168 		return -ENOMEM;  in ax88172a_bind()
170 	dev->driver_priv = priv;  in ax88172a_bind()
175 		netdev_err(dev->net, "Failed to read MAC address: %d\n", ret);  in ax88172a_bind()
176 		ret = -EIO;  in ax88172a_bind()
179 	eth_hw_addr_set(dev->net, buf);  in ax88172a_bind()
181 	dev->net->netdev_ops = &ax88172a_netdev_ops;  in ax88172a_bind()
182 	dev->net->ethtool_ops = &ax88172a_ethtool_ops;  in ax88172a_bind()
187 		netdev_err(dev->net, "Failed to read software interface selection register: %d\n",  in ax88172a_bind()
192 	netdev_dbg(dev->net, "AX_CMD_SW_PHY_STATUS = 0x%02x\n", buf[0]);  in ax88172a_bind()
195 		netdev_dbg(dev->net, "use internal phy\n");  in ax88172a_bind()
196 		priv->use_embdphy = 1;  in ax88172a_bind()
199 		netdev_dbg(dev->net, "use external phy\n");  in ax88172a_bind()
200 		priv->use_embdphy = 0;  in ax88172a_bind()
203 		netdev_err(dev->net, "Interface mode not supported by driver\n");  in ax88172a_bind()
204 		ret = -ENOTSUPP;  in ax88172a_bind()
208 	ret = asix_read_phy_addr(dev, priv->use_embdphy);  in ax88172a_bind()
212 	priv->phy_addr = ret;  in ax88172a_bind()
214 	ax88172a_reset_phy(dev, priv->use_embdphy);  in ax88172a_bind()
217 	if (dev->driver_info->flags & FLAG_FRAMING_AX) {  in ax88172a_bind()
218 		/* hard_mtu  is still the default - the device does not support  in ax88172a_bind()
220 		dev->rx_urb_size = 2048;  in ax88172a_bind()
223 	/* init MDIO bus */  in ax88172a_bind()
237 	struct ax88172a_private *priv = dev->driver_priv;  in ax88172a_stop()
239 	netdev_dbg(dev->net, "Stopping interface\n");  in ax88172a_stop()
241 	if (priv->phydev) {  in ax88172a_stop()
242 		netdev_info(dev->net, "Disconnecting from phy %s\n",  in ax88172a_stop()
243 			    priv->phy_name);  in ax88172a_stop()
244 		phy_stop(priv->phydev);  in ax88172a_stop()
245 		phy_disconnect(priv->phydev);  in ax88172a_stop()
253 	struct ax88172a_private *priv = dev->driver_priv;  in ax88172a_unbind()
261 	struct asix_data *data = (struct asix_data *)&dev->data;  in ax88172a_reset()
262 	struct ax88172a_private *priv = dev->driver_priv;  in ax88172a_reset()
266 	ax88172a_reset_phy(dev, priv->use_embdphy);  in ax88172a_reset()
270 	netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl);  in ax88172a_reset()
276 	netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl);  in ax88172a_reset()
284 		netdev_err(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);  in ax88172a_reset()
289 	memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);  in ax88172a_reset()
291 			     data->mac_addr, 0);  in ax88172a_reset()
301 	netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",  in ax88172a_reset()
305 	netdev_dbg(dev->net, "Medium Status is 0x%04x after all initializations\n",  in ax88172a_reset()
309 	snprintf(priv->phy_name, 20, PHY_ID_FMT,  in ax88172a_reset()
310 		 priv->mdio->id, priv->phy_addr);  in ax88172a_reset()
312 	priv->phydev = phy_connect(dev->net, priv->phy_name,  in ax88172a_reset()
315 	if (IS_ERR(priv->phydev)) {  in ax88172a_reset()
316 		netdev_err(dev->net, "Could not connect to PHY device %s\n",  in ax88172a_reset()
317 			   priv->phy_name);  in ax88172a_reset()
318 		ret = PTR_ERR(priv->phydev);  in ax88172a_reset()
322 	netdev_info(dev->net, "Connected to phy %s\n", priv->phy_name);  in ax88172a_reset()
324 	/* During power-up, the AX88172A set the power down (BMCR_PDOWN)  in ax88172a_reset()
327 	genphy_resume(priv->phydev);  in ax88172a_reset()
328 	phy_start(priv->phydev);  in ax88172a_reset()
339 	struct ax88172a_private *dp = dev->driver_priv;  in ax88172a_rx_fixup()
340 	struct asix_rx_fixup_info *rx = &dp->rx_fixup_info;  in ax88172a_rx_fixup()