// SPDX-License-Identifier: GPL-2.0-or-later /* * ASIX AX8817X based USB 2.0 Ethernet Devices * Copyright (C) 2003-2006 David Hollis * Copyright (C) 2005 Phil Chang * Copyright (C) 2006 James Painter * Copyright (c) 2002-2003 TiVo Inc. */ #include "asix.h" #define PHY_MODE_MARVELL 0x0000 #define MII_MARVELL_LED_CTRL 0x0018 #define MII_MARVELL_STATUS 0x001b #define MII_MARVELL_CTRL 0x0014 #define MARVELL_LED_MANUAL 0x0019 #define MARVELL_STATUS_HWCFG 0x0004 #define MARVELL_CTRL_TXDELAY 0x0002 #define MARVELL_CTRL_RXDELAY 0x0080 #define PHY_MODE_RTL8211CL 0x000C #define AX88772A_PHY14H 0x14 #define AX88772A_PHY14H_DEFAULT 0x442C #define AX88772A_PHY15H 0x15 #define AX88772A_PHY15H_DEFAULT 0x03C8 #define AX88772A_PHY16H 0x16 #define AX88772A_PHY16H_DEFAULT 0x4044 struct ax88172_int_data { __le16 res1; u8 link; __le16 res2; u8 status; __le16 res3; } __packed; static void asix_status(struct usbnet *dev, struct urb *urb) { struct ax88172_int_data *event; int link; if (urb->actual_length < 8) return; event = urb->transfer_buffer; link = event->link & 0x01; if (netif_carrier_ok(dev->net) != link) { usbnet_link_change(dev, link, 1); netdev_dbg(dev->net, "Link Status is: %d\n", link); } } static void asix_set_netdev_dev_addr(struct usbnet *dev, u8 *addr) { if (is_valid_ether_addr(addr)) { memcpy(dev->net->dev_addr, addr, ETH_ALEN); } else { netdev_info(dev->net, "invalid hw address, using random\n"); eth_hw_addr_random(dev->net); } } /* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */ static u32 asix_get_phyid(struct usbnet *dev) { int phy_reg; u32 phy_id; int i; /* Poll for the rare case the FW or phy isn't ready yet. */ for (i = 0; i < 100; i++) { phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1); if (phy_reg < 0) return 0; if (phy_reg != 0 && phy_reg != 0xFFFF) break; mdelay(1); } if (phy_reg <= 0 || phy_reg == 0xFFFF) return 0; phy_id = (phy_reg & 0xffff) << 16; phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2); if (phy_reg < 0) return 0; phy_id |= (phy_reg & 0xffff); return phy_id; } static u32 asix_get_link(struct net_device *net) { struct usbnet *dev = netdev_priv(net); return mii_link_ok(&dev->mii); } static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd) { struct usbnet *dev = netdev_priv(net); return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); } /* We need to override some ethtool_ops so we require our own structure so we don't interfere with other usbnet devices that may be connected at the same time. */ static const struct ethtool_ops ax88172_ethtool_ops = { .get_drvinfo = asix_get_drvinfo, .get_link = asix_get_link, .get_msglevel = usbnet_get_msglevel, .set_msglevel = usbnet_set_msglevel, .get_wol = asix_get_wol, .set_wol = asix_set_wol, .get_eeprom_len = asix_get_eeprom_len, .get_eeprom = asix_get_eeprom, .set_eeprom = asix_set_eeprom, .nway_reset = usbnet_nway_reset, .get_link_ksettings = usbnet_get_link_ksettings_mii, .set_link_ksettings = usbnet_set_link_ksettings_mii, }; static void ax88172_set_multicast(struct net_device *net) { struct usbnet *dev = netdev_priv(net); struct asix_data *data = (struct asix_data *)&dev->data; u8 rx_ctl = 0x8c; if (net->flags & IFF_PROMISC) { rx_ctl |= 0x01; } else if (net->flags & IFF_ALLMULTI || netdev_mc_count(net) > AX_MAX_MCAST) { rx_ctl |= 0x02; } else if (netdev_mc_empty(net)) { /* just broadcast and directed */ } else { /* We use the 20 byte dev->data * for our 8 byte filter buffer * to avoid allocating memory that * is tricky to free later */ struct netdev_hw_addr *ha; u32 crc_bits; memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); /* Build the multicast hash filter. */ netdev_for_each_mc_addr(ha, net) { crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; data->multi_filter[crc_bits >> 3] |= 1 << (crc_bits & 7); } asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, AX_MCAST_FILTER_SIZE, data->multi_filter); rx_ctl |= 0x10; } asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); } static int ax88172_link_reset(struct usbnet *dev) { u8 mode; struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; mii_check_media(&dev->mii, 1, 1); mii_ethtool_gset(&dev->mii, &ecmd); mode = AX88172_MEDIUM_DEFAULT; if (ecmd.duplex != DUPLEX_FULL) mode |= ~AX88172_MEDIUM_FD; netdev_dbg(dev->net, "ax88172_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n", ethtool_cmd_speed(&ecmd), ecmd.duplex, mode); asix_write_medium_mode(dev, mode, 0); return 0; } static const struct net_device_ops ax88172_netdev_ops = { .ndo_open = usbnet_open, .ndo_stop = usbnet_stop, .ndo_start_xmit = usbnet_start_xmit, .ndo_tx_timeout = usbnet_tx_timeout, .ndo_change_mtu = usbnet_change_mtu, .ndo_get_stats64 = dev_get_tstats64, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, .ndo_do_ioctl = asix_ioctl, .ndo_set_rx_mode = ax88172_set_multicast, }; static void asix_phy_reset(struct usbnet *dev, unsigned int reset_bits) { unsigned int timeout = 5000; asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, reset_bits); /* give phy_id a chance to process reset */ udelay(500); /* See IEEE 802.3 "22.2.4.1.1 Reset": 500ms max */ while (timeout--) { if (asix_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR) & BMCR_RESET) udelay(100); else return; } netdev_err(dev->net, "BMCR_RESET timeout on phy_id %d\n", dev->mii.phy_id); } static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf) { int ret = 0; u8 buf[ETH_ALEN] = {0}; int i; unsigned long gpio_bits = dev->driver_info->data; usbnet_get_endpoints(dev,intf); /* Toggle the GPIOs in a manufacturer/model specific way */ for (i = 2; i >= 0; i--) { ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, (gpio_bits >> (i * 8)) & 0xff, 0, 0, NULL, 0); if (ret < 0) goto out; msleep(5); } ret = asix_write_rx_ctl(dev, 0x80, 0); if (ret < 0) goto out; /* Get the MAC address */ ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0); if (ret < 0) { netdev_dbg(dev->net, "read AX_CMD_READ_NODE_ID failed: %d\n", ret); goto out; } asix_set_netdev_dev_addr(dev, buf); /* Initialize MII structure */ dev->mii.dev = dev->net; dev->mii.mdio_read = asix_mdio_read; dev->mii.mdio_write = asix_mdio_write; dev->mii.phy_id_mask = 0x3f; dev->mii.reg_num_mask = 0x1f; dev->mii.phy_id = asix_read_phy_addr(dev, true); if (dev->mii.phy_id < 0) return dev->mii.phy_id; dev->net->netdev_ops = &ax88172_netdev_ops; dev->net->ethtool_ops = &ax88172_ethtool_ops; dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */ dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */ asix_phy_reset(dev, BMCR_RESET); asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); mii_nway_restart(&dev->mii); return 0; out: return ret; } static void ax88772_ethtool_get_strings(struct net_device *netdev, u32 sset, u8 *data) { switch (sset) { case ETH_SS_TEST: net_selftest_get_strings(data); break; } } static int ax88772_ethtool_get_sset_count(struct net_device *ndev, int sset) { switch (sset) { case ETH_SS_TEST: return net_selftest_get_count(); default: return -EOPNOTSUPP; } } static const struct ethtool_ops ax88772_ethtool_ops = { .get_drvinfo = asix_get_drvinfo, .get_link = usbnet_get_link, .get_msglevel = usbnet_get_msglevel, .set_msglevel = usbnet_set_msglevel, .get_wol = asix_get_wol, .set_wol = asix_set_wol, .get_eeprom_len = asix_get_eeprom_len, .get_eeprom = asix_get_eeprom, .set_eeprom = asix_set_eeprom, .nway_reset = phy_ethtool_nway_reset, .get_link_ksettings = phy_ethtool_get_link_ksettings, .set_link_ksettings = phy_ethtool_set_link_ksettings, .self_test = net_selftest, .get_strings = ax88772_ethtool_get_strings, .get_sset_count = ax88772_ethtool_get_sset_count, }; static int ax88772_reset(struct usbnet *dev) { struct asix_data *data = (struct asix_data *)&dev->data; struct asix_common_private *priv = dev->driver_priv; int ret; /* Rewrite MAC address */ ether_addr_copy(data->mac_addr, dev->net->dev_addr); ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, data->mac_addr, 0); if (ret < 0) goto out; /* Set RX_CTL to default values with 2k buffer, and enable cactus */ ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, 0); if (ret < 0) goto out; ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, 0); if (ret < 0) goto out; phy_start(priv->phydev); return 0; out: return ret; } static int ax88772_hw_reset(struct usbnet *dev, int in_pm) { struct asix_data *data = (struct asix_data *)&dev->data; int ret, embd_phy; u16 rx_ctl; ret = asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5, in_pm); if (ret < 0) goto out; embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0); ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL, in_pm); if (ret < 0) { netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret); goto out; } if (embd_phy) { ret = asix_sw_reset(dev, AX_SWRESET_IPPD, in_pm); if (ret < 0) goto out; usleep_range(10000, 11000); ret = asix_sw_reset(dev, AX_SWRESET_CLEAR, in_pm); if (ret < 0) goto out; msleep(60); ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL, in_pm); if (ret < 0) goto out; } else { ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL, in_pm); if (ret < 0) goto out; } msleep(150); if (in_pm && (!asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_PHYSID1))){ ret = -EIO; goto out; } ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm); if (ret < 0) goto out; ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, in_pm); if (ret < 0) goto out; ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT, AX88772_IPG2_DEFAULT, 0, NULL, in_pm); if (ret < 0) { netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret); goto out; } /* Rewrite MAC address */ ether_addr_copy(data->mac_addr, dev->net->dev_addr); ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, data->mac_addr, in_pm); if (ret < 0) goto out; /* Set RX_CTL to default values with 2k buffer, and enable cactus */ ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm); if (ret < 0) goto out; rx_ctl = asix_read_rx_ctl(dev, in_pm); netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n", rx_ctl); rx_ctl = asix_read_medium_status(dev, in_pm); netdev_dbg(dev->net, "Medium Status is 0x%04x after all initializations\n", rx_ctl); return 0; out: return ret; } static int ax88772a_hw_reset(struct usbnet *dev, int in_pm) { struct asix_data *data = (struct asix_data *)&dev->data; int ret, embd_phy; u16 rx_ctl, phy14h, phy15h, phy16h; u8 chipcode = 0; ret = asix_write_gpio(dev, AX_GPIO_RSE, 5, in_pm); if (ret < 0) goto out; embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0); ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy | AX_PHYSEL_SSEN, 0, 0, NULL, in_pm); if (ret < 0) { netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret); goto out; } usleep_range(10000, 11000); ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_IPRL, in_pm); if (ret < 0) goto out; usleep_range(10000, 11000); ret = asix_sw_reset(dev, AX_SWRESET_IPRL, in_pm); if (ret < 0) goto out; msleep(160); ret = asix_sw_reset(dev, AX_SWRESET_CLEAR, in_pm); if (ret < 0) goto out; ret = asix_sw_reset(dev, AX_SWRESET_IPRL, in_pm); if (ret < 0) goto out; msleep(200); if (in_pm && (!asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_PHYSID1))) { ret = -1; goto out; } ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, 0, 1, &chipcode, in_pm); if (ret < 0) goto out; if ((chipcode & AX_CHIPCODE_MASK) == AX_AX88772B_CHIPCODE) { ret = asix_write_cmd(dev, AX_QCTCTRL, 0x8000, 0x8001, 0, NULL, in_pm); if (ret < 0) { netdev_dbg(dev->net, "Write BQ setting failed: %d\n", ret); goto out; } } else if ((chipcode & AX_CHIPCODE_MASK) == AX_AX88772A_CHIPCODE) { /* Check if the PHY registers have default settings */ phy14h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id, AX88772A_PHY14H); phy15h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id, AX88772A_PHY15H); phy16h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id, AX88772A_PHY16H); netdev_dbg(dev->net, "772a_hw_reset: MR20=0x%x MR21=0x%x MR22=0x%x\n", phy14h, phy15h, phy16h); /* Restore PHY registers default setting if not */ if (phy14h != AX88772A_PHY14H_DEFAULT) asix_mdio_write_nopm(dev->net, dev->mii.phy_id, AX88772A_PHY14H, AX88772A_PHY14H_DEFAULT); if (phy15h != AX88772A_PHY15H_DEFAULT) asix_mdio_write_nopm(dev->net, dev->mii.phy_id, AX88772A_PHY15H, AX88772A_PHY15H_DEFAULT); if (phy16h != AX88772A_PHY16H_DEFAULT) asix_mdio_write_nopm(dev->net, dev->mii.phy_id, AX88772A_PHY16H, AX88772A_PHY16H_DEFAULT); } ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT, AX88772_IPG2_DEFAULT, 0, NULL, in_pm); if (ret < 0) { netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret); goto out; } /* Rewrite MAC address */ memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN); ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, data->mac_addr, in_pm); if (ret < 0) goto out; /* Set RX_CTL to default values with 2k buffer, and enable cactus */ ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm); if (ret < 0) goto out; ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, in_pm); if (ret < 0) return ret; /* Set RX_CTL to default values with 2k buffer, and enable cactus */ ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm); if (ret < 0) goto out; rx_ctl = asix_read_rx_ctl(dev, in_pm); netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n", rx_ctl); rx_ctl = asix_read_medium_status(dev, in_pm); netdev_dbg(dev->net, "Medium Status is 0x%04x after all initializations\n", rx_ctl); return 0; out: return ret; } static const struct net_device_ops ax88772_netdev_ops = { .ndo_open = usbnet_open, .ndo_stop = usbnet_stop, .ndo_start_xmit = usbnet_start_xmit, .ndo_tx_timeout = usbnet_tx_timeout, .ndo_change_mtu = usbnet_change_mtu, .ndo_get_stats64 = dev_get_tstats64, .ndo_set_mac_address = asix_set_mac_address, .ndo_validate_addr = eth_validate_addr, .ndo_do_ioctl = phy_do_ioctl_running, .ndo_set_rx_mode = asix_set_multicast, }; static void ax88772_suspend(struct usbnet *dev) { struct asix_common_private *priv = dev->driver_priv; u16 medium; /* Stop MAC operation */ medium = asix_read_medium_status(dev, 1); medium &= ~AX_MEDIUM_RE; asix_write_medium_mode(dev, medium, 1); netdev_dbg(dev->net, "ax88772_suspend: medium=0x%04x\n", asix_read_medium_status(dev, 1)); /* Preserve BMCR for restoring */ priv->presvd_phy_bmcr = asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_BMCR); /* Preserve ANAR for restoring */ priv->presvd_phy_advertise = asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_ADVERTISE); } static int asix_suspend(struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); struct asix_common_private *priv = dev->driver_priv; if (priv && priv->suspend) priv->suspend(dev); return usbnet_suspend(intf, message); } static void ax88772_restore_phy(struct usbnet *dev) { struct asix_common_private *priv = dev->driver_priv; if (priv->presvd_phy_advertise) { /* Restore Advertisement control reg */ asix_mdio_write_nopm(dev->net, dev->mii.phy_id, MII_ADVERTISE, priv->presvd_phy_advertise); /* Restore BMCR */ if (priv->presvd_phy_bmcr & BMCR_ANENABLE) priv->presvd_phy_bmcr |= BMCR_ANRESTART; asix_mdio_write_nopm(dev->net, dev->mii.phy_id, MII_BMCR, priv->presvd_phy_bmcr); priv->presvd_phy_advertise = 0; priv->presvd_phy_bmcr = 0; } } static void ax88772_resume(struct usbnet *dev) { int i; for (i = 0; i < 3; i++) if (!ax88772_hw_reset(dev, 1)) break; ax88772_restore_phy(dev); } static void ax88772a_resume(struct usbnet *dev) { int i; for (i = 0; i < 3; i++) { if (!ax88772a_hw_reset(dev, 1)) break; } ax88772_restore_phy(dev); } static int asix_resume(struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); struct asix_common_private *priv = dev->driver_priv; if (priv && priv->resume) priv->resume(dev); return usbnet_resume(intf); } static int ax88772_init_mdio(struct usbnet *dev) { struct asix_common_private *priv = dev->driver_priv; priv->mdio = devm_mdiobus_alloc(&dev->udev->dev); if (!priv->mdio) return -ENOMEM; priv->mdio->priv = dev; priv->mdio->read = &asix_mdio_bus_read; priv->mdio->write = &asix_mdio_bus_write; priv->mdio->name = "Asix MDIO Bus"; /* mii bus name is usb-- */ snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d", dev->udev->bus->busnum, dev->udev->devnum); return devm_mdiobus_register(&dev->udev->dev, priv->mdio); } static int ax88772_init_phy(struct usbnet *dev) { struct asix_common_private *priv = dev->driver_priv; int ret; priv->phy_addr = asix_read_phy_addr(dev, true); if (priv->phy_addr < 0) return priv->phy_addr; snprintf(priv->phy_name, sizeof(priv->phy_name), PHY_ID_FMT, priv->mdio->id, priv->phy_addr); priv->phydev = phy_connect(dev->net, priv->phy_name, &asix_adjust_link, PHY_INTERFACE_MODE_INTERNAL); if (IS_ERR(priv->phydev)) { netdev_err(dev->net, "Could not connect to PHY device %s\n", priv->phy_name); ret = PTR_ERR(priv->phydev); return ret; } phy_attached_info(priv->phydev); return 0; } static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) { u8 buf[ETH_ALEN] = {0}, chipcode = 0; struct asix_common_private *priv; int ret, i; u32 phyid; usbnet_get_endpoints(dev, intf); /* Maybe the boot loader passed the MAC address via device tree */ if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) { netif_dbg(dev, ifup, dev->net, "MAC address read from device tree"); } else { /* Try getting the MAC address from EEPROM */ if (dev->driver_info->data & FLAG_EEPROM_MAC) { for (i = 0; i < (ETH_ALEN >> 1); i++) { ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x04 + i, 0, 2, buf + i * 2, 0); if (ret < 0) break; } } else { ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0); } if (ret < 0) { netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret); return ret; } } asix_set_netdev_dev_addr(dev, buf); dev->net->netdev_ops = &ax88772_netdev_ops; dev->net->ethtool_ops = &ax88772_ethtool_ops; dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */ dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */ asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, 0, 1, &chipcode, 0); chipcode &= AX_CHIPCODE_MASK; ret = (chipcode == AX_AX88772_CHIPCODE) ? ax88772_hw_reset(dev, 0) : ax88772a_hw_reset(dev, 0); if (ret < 0) { netdev_dbg(dev->net, "Failed to reset AX88772: %d\n", ret); return ret; } /* Read PHYID register *AFTER* the PHY was reset properly */ phyid = asix_get_phyid(dev); netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid); /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */ if (dev->driver_info->flags & FLAG_FRAMING_AX) { /* hard_mtu is still the default - the device does not support jumbo eth frames */ dev->rx_urb_size = 2048; } priv = devm_kzalloc(&dev->udev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; dev->driver_priv = priv; priv->presvd_phy_bmcr = 0; priv->presvd_phy_advertise = 0; if (chipcode == AX_AX88772_CHIPCODE) { priv->resume = ax88772_resume; priv->suspend = ax88772_suspend; } else { priv->resume = ax88772a_resume; priv->suspend = ax88772_suspend; } ret = ax88772_init_mdio(dev); if (ret) return ret; return ax88772_init_phy(dev); } static int ax88772_stop(struct usbnet *dev) { struct asix_common_private *priv = dev->driver_priv; /* On unplugged USB, we will get MDIO communication errors and the * PHY will be set in to PHY_HALTED state. */ if (priv->phydev->state != PHY_HALTED) phy_stop(priv->phydev); return 0; } static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf) { struct asix_common_private *priv = dev->driver_priv; phy_disconnect(priv->phydev); asix_rx_fixup_common_free(dev->driver_priv); } static const struct ethtool_ops ax88178_ethtool_ops = { .get_drvinfo = asix_get_drvinfo, .get_link = asix_get_link, .get_msglevel = usbnet_get_msglevel, .set_msglevel = usbnet_set_msglevel, .get_wol = asix_get_wol, .set_wol = asix_set_wol, .get_eeprom_len = asix_get_eeprom_len, .get_eeprom = asix_get_eeprom, .set_eeprom = asix_set_eeprom, .nway_reset = usbnet_nway_reset, .get_link_ksettings = usbnet_get_link_ksettings_mii, .set_link_ksettings = usbnet_set_link_ksettings_mii, }; static int marvell_phy_init(struct usbnet *dev) { struct asix_data *data = (struct asix_data *)&dev->data; u16 reg; netdev_dbg(dev->net, "marvell_phy_init()\n"); reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS); netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg); asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL, MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY); if (data->ledmode) { reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_LED_CTRL); netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg); reg &= 0xf8ff; reg |= (1 + 0x0100); asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_LED_CTRL, reg); reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_LED_CTRL); netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg); reg &= 0xfc0f; } return 0; } static int rtl8211cl_phy_init(struct usbnet *dev) { struct asix_data *data = (struct asix_data *)&dev->data; netdev_dbg(dev->net, "rtl8211cl_phy_init()\n"); asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0005); asix_mdio_write (dev->net, dev->mii.phy_id, 0x0c, 0); asix_mdio_write (dev->net, dev->mii.phy_id, 0x01, asix_mdio_read (dev->net, dev->mii.phy_id, 0x01) | 0x0080); asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0); if (data->ledmode == 12) { asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0002); asix_mdio_write (dev->net, dev->mii.phy_id, 0x1a, 0x00cb); asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0); } return 0; } static int marvell_led_status(struct usbnet *dev, u16 speed) { u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL); netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg); /* Clear out the center LED bits - 0x03F0 */ reg &= 0xfc0f; switch (speed) { case SPEED_1000: reg |= 0x03e0; break; case SPEED_100: reg |= 0x03b0; break; default: reg |= 0x02f0; } netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg); asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg); return 0; } static int ax88178_reset(struct usbnet *dev) { struct asix_data *data = (struct asix_data *)&dev->data; int ret; __le16 eeprom; u8 status; int gpio0 = 0; u32 phyid; asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status, 0); netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status); asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL, 0); asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom, 0); asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL, 0); netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom); if (eeprom == cpu_to_le16(0xffff)) { data->phymode = PHY_MODE_MARVELL; data->ledmode = 0; gpio0 = 1; } else { data->phymode = le16_to_cpu(eeprom) & 0x7F; data->ledmode = le16_to_cpu(eeprom) >> 8; gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1; } netdev_dbg(dev->net, "GPIO0: %d, PhyMode: %d\n", gpio0, data->phymode); /* Power up external GigaPHY through AX88178 GPIO pin */ asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40, 0); if ((le16_to_cpu(eeprom) >> 8) != 1) { asix_write_gpio(dev, 0x003c, 30, 0); asix_write_gpio(dev, 0x001c, 300, 0); asix_write_gpio(dev, 0x003c, 30, 0); } else { netdev_dbg(dev->net, "gpio phymode == 1 path\n"); asix_write_gpio(dev, AX_GPIO_GPO1EN, 30, 0); asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30, 0); } /* Read PHYID register *AFTER* powering up PHY */ phyid = asix_get_phyid(dev); netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid); /* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */ asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL, 0); asix_sw_reset(dev, 0, 0); msleep(150); asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD, 0); msleep(150); asix_write_rx_ctl(dev, 0, 0); if (data->phymode == PHY_MODE_MARVELL) { marvell_phy_init(dev); msleep(60); } else if (data->phymode == PHY_MODE_RTL8211CL) rtl8211cl_phy_init(dev); asix_phy_reset(dev, BMCR_RESET | BMCR_ANENABLE); asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000, ADVERTISE_1000FULL); asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT, 0); mii_nway_restart(&dev->mii); /* Rewrite MAC address */ memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN); ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, data->mac_addr, 0); if (ret < 0) return ret; ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, 0); if (ret < 0) return ret; return 0; } static int ax88178_link_reset(struct usbnet *dev) { u16 mode; struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; struct asix_data *data = (struct asix_data *)&dev->data; u32 speed; netdev_dbg(dev->net, "ax88178_link_reset()\n"); mii_check_media(&dev->mii, 1, 1); mii_ethtool_gset(&dev->mii, &ecmd); mode = AX88178_MEDIUM_DEFAULT; speed = ethtool_cmd_speed(&ecmd); if (speed == SPEED_1000) mode |= AX_MEDIUM_GM; else if (speed == SPEED_100) mode |= AX_MEDIUM_PS; else mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM); mode |= AX_MEDIUM_ENCK; if (ecmd.duplex == DUPLEX_FULL) mode |= AX_MEDIUM_FD; else mode &= ~AX_MEDIUM_FD; netdev_dbg(dev->net, "ax88178_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n", speed, ecmd.duplex, mode); asix_write_medium_mode(dev, mode, 0); if (data->phymode == PHY_MODE_MARVELL && data->ledmode) marvell_led_status(dev, speed); return 0; } static void ax88178_set_mfb(struct usbnet *dev) { u16 mfb = AX_RX_CTL_MFB_16384; u16 rxctl; u16 medium; int old_rx_urb_size = dev->rx_urb_size; if (dev->hard_mtu < 2048) { dev->rx_urb_size = 2048; mfb = AX_RX_CTL_MFB_2048; } else if (dev->hard_mtu < 4096) { dev->rx_urb_size = 4096; mfb = AX_RX_CTL_MFB_4096; } else if (dev->hard_mtu < 8192) { dev->rx_urb_size = 8192; mfb = AX_RX_CTL_MFB_8192; } else if (dev->hard_mtu < 16384) { dev->rx_urb_size = 16384; mfb = AX_RX_CTL_MFB_16384; } rxctl = asix_read_rx_ctl(dev, 0); asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb, 0); medium = asix_read_medium_status(dev, 0); if (dev->net->mtu > 1500) medium |= AX_MEDIUM_JFE; else medium &= ~AX_MEDIUM_JFE; asix_write_medium_mode(dev, medium, 0); if (dev->rx_urb_size > old_rx_urb_size) usbnet_unlink_rx_urbs(dev); } static int ax88178_change_mtu(struct net_device *net, int new_mtu) { struct usbnet *dev = netdev_priv(net); int ll_mtu = new_mtu + net->hard_header_len + 4; netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu); if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; net->mtu = new_mtu; dev->hard_mtu = net->mtu + net->hard_header_len; ax88178_set_mfb(dev); /* max qlen depend on hard_mtu and rx_urb_size */ usbnet_update_max_qlen(dev); return 0; } static const struct net_device_ops ax88178_netdev_ops = { .ndo_open = usbnet_open, .ndo_stop = usbnet_stop, .ndo_start_xmit = usbnet_start_xmit, .ndo_tx_timeout = usbnet_tx_timeout, .ndo_get_stats64 = dev_get_tstats64, .ndo_set_mac_address = asix_set_mac_address, .ndo_validate_addr = eth_validate_addr, .ndo_set_rx_mode = asix_set_multicast, .ndo_do_ioctl = asix_ioctl, .ndo_change_mtu = ax88178_change_mtu, }; static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf) { int ret; u8 buf[ETH_ALEN] = {0}; usbnet_get_endpoints(dev,intf); /* Get the MAC address */ ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0); if (ret < 0) { netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret); return ret; } asix_set_netdev_dev_addr(dev, buf); /* Initialize MII structure */ dev->mii.dev = dev->net; dev->mii.mdio_read = asix_mdio_read; dev->mii.mdio_write = asix_mdio_write; dev->mii.phy_id_mask = 0x1f; dev->mii.reg_num_mask = 0xff; dev->mii.supports_gmii = 1; dev->mii.phy_id = asix_read_phy_addr(dev, true); if (dev->mii.phy_id < 0) return dev->mii.phy_id; dev->net->netdev_ops = &ax88178_netdev_ops; dev->net->ethtool_ops = &ax88178_ethtool_ops; dev->net->max_mtu = 16384 - (dev->net->hard_header_len + 4); /* Blink LEDS so users know driver saw dongle */ asix_sw_reset(dev, 0, 0); msleep(150); asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD, 0); msleep(150); /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */ if (dev->driver_info->flags & FLAG_FRAMING_AX) { /* hard_mtu is still the default - the device does not support jumbo eth frames */ dev->rx_urb_size = 2048; } dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL); if (!dev->driver_priv) return -ENOMEM; return 0; } static const struct driver_info ax8817x_info = { .description = "ASIX AX8817x USB 2.0 Ethernet", .bind = ax88172_bind, .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x00130103, }; static const struct driver_info dlink_dub_e100_info = { .description = "DLink DUB-E100 USB Ethernet", .bind = ax88172_bind, .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x009f9d9f, }; static const struct driver_info netgear_fa120_info = { .description = "Netgear FA-120 USB Ethernet", .bind = ax88172_bind, .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x00130103, }; static const struct driver_info hawking_uf200_info = { .description = "Hawking UF200 USB Ethernet", .bind = ax88172_bind, .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x001f1d1f, }; static const struct driver_info ax88772_info = { .description = "ASIX AX88772 USB 2.0 Ethernet", .bind = ax88772_bind, .unbind = ax88772_unbind, .status = asix_status, .reset = ax88772_reset, .stop = ax88772_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, }; static const struct driver_info ax88772b_info = { .description = "ASIX AX88772B USB 2.0 Ethernet", .bind = ax88772_bind, .unbind = ax88772_unbind, .status = asix_status, .reset = ax88772_reset, .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, .data = FLAG_EEPROM_MAC, }; static const struct driver_info ax88178_info = { .description = "ASIX AX88178 USB 2.0 Ethernet", .bind = ax88178_bind, .unbind = ax88772_unbind, .status = asix_status, .link_reset = ax88178_link_reset, .reset = ax88178_reset, .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, }; /* * USBLINK 20F9 "USB 2.0 LAN" USB ethernet adapter, typically found in * no-name packaging. * USB device strings are: * 1: Manufacturer: USBLINK * 2: Product: HG20F9 USB2.0 * 3: Serial: 000003 * Appears to be compatible with Asix 88772B. */ static const struct driver_info hg20f9_info = { .description = "HG20F9 USB 2.0 Ethernet", .bind = ax88772_bind, .unbind = ax88772_unbind, .status = asix_status, .reset = ax88772_reset, .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, .data = FLAG_EEPROM_MAC, }; static const struct usb_device_id products [] = { { // Linksys USB200M USB_DEVICE (0x077b, 0x2226), .driver_info = (unsigned long) &ax8817x_info, }, { // Netgear FA120 USB_DEVICE (0x0846, 0x1040), .driver_info = (unsigned long) &netgear_fa120_info, }, { // DLink DUB-E100 USB_DEVICE (0x2001, 0x1a00), .driver_info = (unsigned long) &dlink_dub_e100_info, }, { // Intellinet, ST Lab USB Ethernet USB_DEVICE (0x0b95, 0x1720), .driver_info = (unsigned long) &ax8817x_info, }, { // Hawking UF200, TrendNet TU2-ET100 USB_DEVICE (0x07b8, 0x420a), .driver_info = (unsigned long) &hawking_uf200_info, }, { // Billionton Systems, USB2AR USB_DEVICE (0x08dd, 0x90ff), .driver_info = (unsigned long) &ax8817x_info, }, { // Billionton Systems, GUSB2AM-1G-B USB_DEVICE(0x08dd, 0x0114), .driver_info = (unsigned long) &ax88178_info, }, { // ATEN UC210T USB_DEVICE (0x0557, 0x2009), .driver_info = (unsigned long) &ax8817x_info, }, { // Buffalo LUA-U2-KTX USB_DEVICE (0x0411, 0x003d), .driver_info = (unsigned long) &ax8817x_info, }, { // Buffalo LUA-U2-GT 10/100/1000 USB_DEVICE (0x0411, 0x006e), .driver_info = (unsigned long) &ax88178_info, }, { // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter" USB_DEVICE (0x6189, 0x182d), .driver_info = (unsigned long) &ax8817x_info, }, { // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter" USB_DEVICE (0x0df6, 0x0056), .driver_info = (unsigned long) &ax88178_info, }, { // Sitecom LN-028 "USB 2.0 10/100/1000 Ethernet adapter" USB_DEVICE (0x0df6, 0x061c), .driver_info = (unsigned long) &ax88178_info, }, { // corega FEther USB2-TX USB_DEVICE (0x07aa, 0x0017), .driver_info = (unsigned long) &ax8817x_info, }, { // Surecom EP-1427X-2 USB_DEVICE (0x1189, 0x0893), .driver_info = (unsigned long) &ax8817x_info, }, { // goodway corp usb gwusb2e USB_DEVICE (0x1631, 0x6200), .driver_info = (unsigned long) &ax8817x_info, }, { // JVC MP-PRX1 Port Replicator USB_DEVICE (0x04f1, 0x3008), .driver_info = (unsigned long) &ax8817x_info, }, { // Lenovo U2L100P 10/100 USB_DEVICE (0x17ef, 0x7203), .driver_info = (unsigned long)&ax88772b_info, }, { // ASIX AX88772B 10/100 USB_DEVICE (0x0b95, 0x772b), .driver_info = (unsigned long) &ax88772b_info, }, { // ASIX AX88772 10/100 USB_DEVICE (0x0b95, 0x7720), .driver_info = (unsigned long) &ax88772_info, }, { // ASIX AX88178 10/100/1000 USB_DEVICE (0x0b95, 0x1780), .driver_info = (unsigned long) &ax88178_info, }, { // Logitec LAN-GTJ/U2A USB_DEVICE (0x0789, 0x0160), .driver_info = (unsigned long) &ax88178_info, }, { // Linksys USB200M Rev 2 USB_DEVICE (0x13b1, 0x0018), .driver_info = (unsigned long) &ax88772_info, }, { // 0Q0 cable ethernet USB_DEVICE (0x1557, 0x7720), .driver_info = (unsigned long) &ax88772_info, }, { // DLink DUB-E100 H/W Ver B1 USB_DEVICE (0x07d1, 0x3c05), .driver_info = (unsigned long) &ax88772_info, }, { // DLink DUB-E100 H/W Ver B1 Alternate USB_DEVICE (0x2001, 0x3c05), .driver_info = (unsigned long) &ax88772_info, }, { // DLink DUB-E100 H/W Ver C1 USB_DEVICE (0x2001, 0x1a02), .driver_info = (unsigned long) &ax88772_info, }, { // Linksys USB1000 USB_DEVICE (0x1737, 0x0039), .driver_info = (unsigned long) &ax88178_info, }, { // IO-DATA ETG-US2 USB_DEVICE (0x04bb, 0x0930), .driver_info = (unsigned long) &ax88178_info, }, { // Belkin F5D5055 USB_DEVICE(0x050d, 0x5055), .driver_info = (unsigned long) &ax88178_info, }, { // Apple USB Ethernet Adapter USB_DEVICE(0x05ac, 0x1402), .driver_info = (unsigned long) &ax88772_info, }, { // Cables-to-Go USB Ethernet Adapter USB_DEVICE(0x0b95, 0x772a), .driver_info = (unsigned long) &ax88772_info, }, { // ABOCOM for pci USB_DEVICE(0x14ea, 0xab11), .driver_info = (unsigned long) &ax88178_info, }, { // ASIX 88772a USB_DEVICE(0x0db0, 0xa877), .driver_info = (unsigned long) &ax88772_info, }, { // Asus USB Ethernet Adapter USB_DEVICE (0x0b95, 0x7e2b), .driver_info = (unsigned long)&ax88772b_info, }, { /* ASIX 88172a demo board */ USB_DEVICE(0x0b95, 0x172a), .driver_info = (unsigned long) &ax88172a_info, }, { /* * USBLINK HG20F9 "USB 2.0 LAN" * Appears to have gazumped Linksys's manufacturer ID but * doesn't (yet) conflict with any known Linksys product. */ USB_DEVICE(0x066b, 0x20f9), .driver_info = (unsigned long) &hg20f9_info, }, { }, // END }; MODULE_DEVICE_TABLE(usb, products); static struct usb_driver asix_driver = { .name = DRIVER_NAME, .id_table = products, .probe = usbnet_probe, .suspend = asix_suspend, .resume = asix_resume, .reset_resume = asix_resume, .disconnect = usbnet_disconnect, .supports_autosuspend = 1, .disable_hub_initiated_lpm = 1, }; module_usb_driver(asix_driver); MODULE_AUTHOR("David Hollis"); MODULE_VERSION(DRIVER_VERSION); MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices"); MODULE_LICENSE("GPL");