| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * MOSCHIP MCS7830 based (7730/7830/7832) USB 2.0 Ethernet Devices |
| * |
| * based on usbnet.c, asix.c and the vendor provided mcs7830 driver |
| * |
| * Copyright (C) 2010 Andreas Mohr <andi@lisas.de> |
| * Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de> |
| * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> |
| * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> |
| * Copyright (c) 2002-2003 TiVo Inc. |
| * |
| * Definitions gathered from MOSCHIP, Data Sheet_7830DA.pdf (thanks!). |
| * |
| * 2010-12-19: add 7832 USB PID ("functionality same as MCS7830"), |
| * per active notification by manufacturer |
| * |
| * TODO: |
| * - support HIF_REG_CONFIG_SLEEPMODE/HIF_REG_CONFIG_TXENABLE (via autopm?) |
| * - implement ethtool_ops get_pauseparam/set_pauseparam |
| * via HIF_REG_PAUSE_THRESHOLD (>= revision C only!) |
| * - implement get_eeprom/[set_eeprom] |
| * - switch PHY on/off on ifup/ifdown (perhaps in usbnet.c, via MII) |
| * - mcs7830_get_regs() handling is weird: for rev 2 we return 32 regs, |
| * can access only ~ 24, remaining user buffer is uninitialized garbage |
| * - anything else? |
| */ |
| |
| #include <linux/crc32.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/mii.h> |
| #include <linux/module.h> |
| #include <linux/netdevice.h> |
| #include <linux/slab.h> |
| #include <linux/usb.h> |
| #include <linux/usb/usbnet.h> |
| |
| /* requests */ |
| #define MCS7830_RD_BMREQ (USB_DIR_IN | USB_TYPE_VENDOR | \ |
| USB_RECIP_DEVICE) |
| #define MCS7830_WR_BMREQ (USB_DIR_OUT | USB_TYPE_VENDOR | \ |
| USB_RECIP_DEVICE) |
| #define MCS7830_RD_BREQ 0x0E |
| #define MCS7830_WR_BREQ 0x0D |
| |
| #define MCS7830_CTRL_TIMEOUT 1000 |
| #define MCS7830_MAX_MCAST 64 |
| |
| #define MCS7830_VENDOR_ID 0x9710 |
| #define MCS7832_PRODUCT_ID 0x7832 |
| #define MCS7830_PRODUCT_ID 0x7830 |
| #define MCS7730_PRODUCT_ID 0x7730 |
| |
| #define SITECOM_VENDOR_ID 0x0DF6 |
| #define LN_030_PRODUCT_ID 0x0021 |
| |
| #define MCS7830_MII_ADVERTISE (ADVERTISE_PAUSE_CAP | ADVERTISE_100FULL | \ |
| ADVERTISE_100HALF | ADVERTISE_10FULL | \ |
| ADVERTISE_10HALF | ADVERTISE_CSMA) |
| |
| /* HIF_REG_XX corresponding index value */ |
| enum { |
| HIF_REG_MULTICAST_HASH = 0x00, |
| HIF_REG_PACKET_GAP1 = 0x08, |
| HIF_REG_PACKET_GAP2 = 0x09, |
| HIF_REG_PHY_DATA = 0x0a, |
| HIF_REG_PHY_CMD1 = 0x0c, |
| HIF_REG_PHY_CMD1_READ = 0x40, |
| HIF_REG_PHY_CMD1_WRITE = 0x20, |
| HIF_REG_PHY_CMD1_PHYADDR = 0x01, |
| HIF_REG_PHY_CMD2 = 0x0d, |
| HIF_REG_PHY_CMD2_PEND_FLAG_BIT = 0x80, |
| HIF_REG_PHY_CMD2_READY_FLAG_BIT = 0x40, |
| HIF_REG_CONFIG = 0x0e, |
| /* hmm, spec sez: "R/W", "Except bit 3" (likely TXENABLE). */ |
| HIF_REG_CONFIG_CFG = 0x80, |
| HIF_REG_CONFIG_SPEED100 = 0x40, |
| HIF_REG_CONFIG_FULLDUPLEX_ENABLE = 0x20, |
| HIF_REG_CONFIG_RXENABLE = 0x10, |
| HIF_REG_CONFIG_TXENABLE = 0x08, |
| HIF_REG_CONFIG_SLEEPMODE = 0x04, |
| HIF_REG_CONFIG_ALLMULTICAST = 0x02, |
| HIF_REG_CONFIG_PROMISCUOUS = 0x01, |
| HIF_REG_ETHERNET_ADDR = 0x0f, |
| HIF_REG_FRAME_DROP_COUNTER = 0x15, /* 0..ff; reset: 0 */ |
| HIF_REG_PAUSE_THRESHOLD = 0x16, |
| HIF_REG_PAUSE_THRESHOLD_DEFAULT = 0, |
| }; |
| |
| /* Trailing status byte in Ethernet Rx frame */ |
| enum { |
| MCS7830_RX_SHORT_FRAME = 0x01, /* < 64 bytes */ |
| MCS7830_RX_LENGTH_ERROR = 0x02, /* framelen != Ethernet length field */ |
| MCS7830_RX_ALIGNMENT_ERROR = 0x04, /* non-even number of nibbles */ |
| MCS7830_RX_CRC_ERROR = 0x08, |
| MCS7830_RX_LARGE_FRAME = 0x10, /* > 1518 bytes */ |
| MCS7830_RX_FRAME_CORRECT = 0x20, /* frame is correct */ |
| /* [7:6] reserved */ |
| }; |
| |
| struct mcs7830_data { |
| u8 multi_filter[8]; |
| u8 config; |
| }; |
| |
| static const char driver_name[] = "MOSCHIP usb-ethernet driver"; |
| |
| static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data) |
| { |
| int ret; |
| |
| ret = usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ, |
| 0x0000, index, data, size); |
| if (ret < 0) |
| return ret; |
| else if (ret < size) |
| return -ENODATA; |
| |
| return ret; |
| } |
| |
| static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data) |
| { |
| return usbnet_write_cmd(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, |
| 0x0000, index, data, size); |
| } |
| |
| static void mcs7830_set_reg_async(struct usbnet *dev, u16 index, u16 size, void *data) |
| { |
| usbnet_write_cmd_async(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, |
| 0x0000, index, data, size); |
| } |
| |
| static int mcs7830_hif_get_mac_address(struct usbnet *dev, unsigned char *addr) |
| { |
| int ret = mcs7830_get_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); |
| if (ret < 0) |
| return ret; |
| return 0; |
| } |
| |
| static int mcs7830_hif_set_mac_address(struct usbnet *dev, |
| const unsigned char *addr) |
| { |
| int ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); |
| |
| if (ret < 0) |
| return ret; |
| return 0; |
| } |
| |
| static int mcs7830_set_mac_address(struct net_device *netdev, void *p) |
| { |
| int ret; |
| struct usbnet *dev = netdev_priv(netdev); |
| struct sockaddr *addr = p; |
| |
| if (netif_running(netdev)) |
| return -EBUSY; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| |
| ret = mcs7830_hif_set_mac_address(dev, addr->sa_data); |
| |
| if (ret < 0) |
| return ret; |
| |
| /* it worked --> adopt it on netdev side */ |
| memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| |
| return 0; |
| } |
| |
| static int mcs7830_read_phy(struct usbnet *dev, u8 index) |
| { |
| int ret; |
| int i; |
| __le16 val; |
| |
| u8 cmd[2] = { |
| HIF_REG_PHY_CMD1_READ | HIF_REG_PHY_CMD1_PHYADDR, |
| HIF_REG_PHY_CMD2_PEND_FLAG_BIT | index, |
| }; |
| |
| mutex_lock(&dev->phy_mutex); |
| /* write the MII command */ |
| ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); |
| if (ret < 0) |
| goto out; |
| |
| /* wait for the data to become valid, should be within < 1ms */ |
| for (i = 0; i < 10; i++) { |
| ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); |
| if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) |
| break; |
| ret = -EIO; |
| msleep(1); |
| } |
| if (ret < 0) |
| goto out; |
| |
| /* read actual register contents */ |
| ret = mcs7830_get_reg(dev, HIF_REG_PHY_DATA, 2, &val); |
| if (ret < 0) |
| goto out; |
| ret = le16_to_cpu(val); |
| dev_dbg(&dev->udev->dev, "read PHY reg %02x: %04x (%d tries)\n", |
| index, val, i); |
| out: |
| mutex_unlock(&dev->phy_mutex); |
| return ret; |
| } |
| |
| static int mcs7830_write_phy(struct usbnet *dev, u8 index, u16 val) |
| { |
| int ret; |
| int i; |
| __le16 le_val; |
| |
| u8 cmd[2] = { |
| HIF_REG_PHY_CMD1_WRITE | HIF_REG_PHY_CMD1_PHYADDR, |
| HIF_REG_PHY_CMD2_PEND_FLAG_BIT | (index & 0x1F), |
| }; |
| |
| mutex_lock(&dev->phy_mutex); |
| |
| /* write the new register contents */ |
| le_val = cpu_to_le16(val); |
| ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val); |
| if (ret < 0) |
| goto out; |
| |
| /* write the MII command */ |
| ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); |
| if (ret < 0) |
| goto out; |
| |
| /* wait for the command to be accepted by the PHY */ |
| for (i = 0; i < 10; i++) { |
| ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); |
| if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) |
| break; |
| ret = -EIO; |
| msleep(1); |
| } |
| if (ret < 0) |
| goto out; |
| |
| ret = 0; |
| dev_dbg(&dev->udev->dev, "write PHY reg %02x: %04x (%d tries)\n", |
| index, val, i); |
| out: |
| mutex_unlock(&dev->phy_mutex); |
| return ret; |
| } |
| |
| /* |
| * This algorithm comes from the original mcs7830 version 1.4 driver, |
| * not sure if it is needed. |
| */ |
| static int mcs7830_set_autoneg(struct usbnet *dev, int ptrUserPhyMode) |
| { |
| int ret; |
| /* Enable all media types */ |
| ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE); |
| |
| /* First reset BMCR */ |
| if (!ret) |
| ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000); |
| /* Enable Auto Neg */ |
| if (!ret) |
| ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE); |
| /* Restart Auto Neg (Keep the Enable Auto Neg Bit Set) */ |
| if (!ret) |
| ret = mcs7830_write_phy(dev, MII_BMCR, |
| BMCR_ANENABLE | BMCR_ANRESTART ); |
| return ret; |
| } |
| |
| |
| /* |
| * if we can read register 22, the chip revision is C or higher |
| */ |
| static int mcs7830_get_rev(struct usbnet *dev) |
| { |
| u8 dummy[2]; |
| int ret; |
| ret = mcs7830_get_reg(dev, HIF_REG_FRAME_DROP_COUNTER, 2, dummy); |
| if (ret > 0) |
| return 2; /* Rev C or later */ |
| return 1; /* earlier revision */ |
| } |
| |
| /* |
| * On rev. C we need to set the pause threshold |
| */ |
| static void mcs7830_rev_C_fixup(struct usbnet *dev) |
| { |
| u8 pause_threshold = HIF_REG_PAUSE_THRESHOLD_DEFAULT; |
| int retry; |
| |
| for (retry = 0; retry < 2; retry++) { |
| if (mcs7830_get_rev(dev) == 2) { |
| dev_info(&dev->udev->dev, "applying rev.C fixup\n"); |
| mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD, |
| 1, &pause_threshold); |
| } |
| msleep(1); |
| } |
| } |
| |
| static int mcs7830_mdio_read(struct net_device *netdev, int phy_id, |
| int location) |
| { |
| struct usbnet *dev = netdev_priv(netdev); |
| return mcs7830_read_phy(dev, location); |
| } |
| |
| static void mcs7830_mdio_write(struct net_device *netdev, int phy_id, |
| int location, int val) |
| { |
| struct usbnet *dev = netdev_priv(netdev); |
| mcs7830_write_phy(dev, location, val); |
| } |
| |
| static int mcs7830_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); |
| } |
| |
| static inline struct mcs7830_data *mcs7830_get_data(struct usbnet *dev) |
| { |
| return (struct mcs7830_data *)&dev->data; |
| } |
| |
| static void mcs7830_hif_update_multicast_hash(struct usbnet *dev) |
| { |
| struct mcs7830_data *data = mcs7830_get_data(dev); |
| mcs7830_set_reg_async(dev, HIF_REG_MULTICAST_HASH, |
| sizeof data->multi_filter, |
| data->multi_filter); |
| } |
| |
| static void mcs7830_hif_update_config(struct usbnet *dev) |
| { |
| /* implementation specific to data->config |
| (argument needs to be heap-based anyway - USB DMA!) */ |
| struct mcs7830_data *data = mcs7830_get_data(dev); |
| mcs7830_set_reg_async(dev, HIF_REG_CONFIG, 1, &data->config); |
| } |
| |
| static void mcs7830_data_set_multicast(struct net_device *net) |
| { |
| struct usbnet *dev = netdev_priv(net); |
| struct mcs7830_data *data = mcs7830_get_data(dev); |
| |
| memset(data->multi_filter, 0, sizeof data->multi_filter); |
| |
| data->config = HIF_REG_CONFIG_TXENABLE; |
| |
| /* this should not be needed, but it doesn't work otherwise */ |
| data->config |= HIF_REG_CONFIG_ALLMULTICAST; |
| |
| if (net->flags & IFF_PROMISC) { |
| data->config |= HIF_REG_CONFIG_PROMISCUOUS; |
| } else if (net->flags & IFF_ALLMULTI || |
| netdev_mc_count(net) > MCS7830_MAX_MCAST) { |
| data->config |= HIF_REG_CONFIG_ALLMULTICAST; |
| } 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; |
| |
| /* 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); |
| } |
| } |
| } |
| |
| static int mcs7830_apply_base_config(struct usbnet *dev) |
| { |
| int ret; |
| |
| /* re-configure known MAC (suspend case etc.) */ |
| ret = mcs7830_hif_set_mac_address(dev, dev->net->dev_addr); |
| if (ret) { |
| dev_info(&dev->udev->dev, "Cannot set MAC address\n"); |
| goto out; |
| } |
| |
| /* Set up PHY */ |
| ret = mcs7830_set_autoneg(dev, 0); |
| if (ret) { |
| dev_info(&dev->udev->dev, "Cannot set autoneg\n"); |
| goto out; |
| } |
| |
| mcs7830_hif_update_multicast_hash(dev); |
| mcs7830_hif_update_config(dev); |
| |
| mcs7830_rev_C_fixup(dev); |
| ret = 0; |
| out: |
| return ret; |
| } |
| |
| /* credits go to asix_set_multicast */ |
| static void mcs7830_set_multicast(struct net_device *net) |
| { |
| struct usbnet *dev = netdev_priv(net); |
| |
| mcs7830_data_set_multicast(net); |
| |
| mcs7830_hif_update_multicast_hash(dev); |
| mcs7830_hif_update_config(dev); |
| } |
| |
| static int mcs7830_get_regs_len(struct net_device *net) |
| { |
| struct usbnet *dev = netdev_priv(net); |
| |
| switch (mcs7830_get_rev(dev)) { |
| case 1: |
| return 21; |
| case 2: |
| return 32; |
| } |
| return 0; |
| } |
| |
| static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo) |
| { |
| usbnet_get_drvinfo(net, drvinfo); |
| } |
| |
| static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data) |
| { |
| struct usbnet *dev = netdev_priv(net); |
| |
| regs->version = mcs7830_get_rev(dev); |
| mcs7830_get_reg(dev, 0, regs->len, data); |
| } |
| |
| static const struct ethtool_ops mcs7830_ethtool_ops = { |
| .get_drvinfo = mcs7830_get_drvinfo, |
| .get_regs_len = mcs7830_get_regs_len, |
| .get_regs = mcs7830_get_regs, |
| |
| /* common usbnet calls */ |
| .get_link = usbnet_get_link, |
| .get_msglevel = usbnet_get_msglevel, |
| .set_msglevel = usbnet_set_msglevel, |
| .nway_reset = usbnet_nway_reset, |
| .get_link_ksettings = usbnet_get_link_ksettings_mii, |
| .set_link_ksettings = usbnet_set_link_ksettings_mii, |
| }; |
| |
| static const struct net_device_ops mcs7830_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_validate_addr = eth_validate_addr, |
| .ndo_eth_ioctl = mcs7830_ioctl, |
| .ndo_set_rx_mode = mcs7830_set_multicast, |
| .ndo_set_mac_address = mcs7830_set_mac_address, |
| }; |
| |
| static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev) |
| { |
| struct net_device *net = dev->net; |
| int ret; |
| int retry; |
| |
| /* Initial startup: Gather MAC address setting from EEPROM */ |
| ret = -EINVAL; |
| for (retry = 0; retry < 5 && ret; retry++) |
| ret = mcs7830_hif_get_mac_address(dev, net->dev_addr); |
| if (ret) { |
| dev_warn(&dev->udev->dev, "Cannot read MAC address\n"); |
| goto out; |
| } |
| |
| mcs7830_data_set_multicast(net); |
| |
| ret = mcs7830_apply_base_config(dev); |
| if (ret) |
| goto out; |
| |
| net->ethtool_ops = &mcs7830_ethtool_ops; |
| net->netdev_ops = &mcs7830_netdev_ops; |
| |
| /* reserve space for the status byte on rx */ |
| dev->rx_urb_size = ETH_FRAME_LEN + 1; |
| |
| dev->mii.mdio_read = mcs7830_mdio_read; |
| dev->mii.mdio_write = mcs7830_mdio_write; |
| dev->mii.dev = net; |
| dev->mii.phy_id_mask = 0x3f; |
| dev->mii.reg_num_mask = 0x1f; |
| dev->mii.phy_id = *((u8 *) net->dev_addr + 1); |
| |
| ret = usbnet_get_endpoints(dev, udev); |
| out: |
| return ret; |
| } |
| |
| /* The chip always appends a status byte that we need to strip */ |
| static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb) |
| { |
| u8 status; |
| |
| /* This check is no longer done by usbnet */ |
| if (skb->len < dev->net->hard_header_len) { |
| dev_err(&dev->udev->dev, "unexpected tiny rx frame\n"); |
| return 0; |
| } |
| |
| skb_trim(skb, skb->len - 1); |
| status = skb->data[skb->len]; |
| |
| if (status != MCS7830_RX_FRAME_CORRECT) { |
| dev_dbg(&dev->udev->dev, "rx fixup status %x\n", status); |
| |
| /* hmm, perhaps usbnet.c already sees a globally visible |
| frame error and increments rx_errors on its own already? */ |
| dev->net->stats.rx_errors++; |
| |
| if (status & (MCS7830_RX_SHORT_FRAME |
| |MCS7830_RX_LENGTH_ERROR |
| |MCS7830_RX_LARGE_FRAME)) |
| dev->net->stats.rx_length_errors++; |
| if (status & MCS7830_RX_ALIGNMENT_ERROR) |
| dev->net->stats.rx_frame_errors++; |
| if (status & MCS7830_RX_CRC_ERROR) |
| dev->net->stats.rx_crc_errors++; |
| } |
| |
| return skb->len > 0; |
| } |
| |
| static void mcs7830_status(struct usbnet *dev, struct urb *urb) |
| { |
| u8 *buf = urb->transfer_buffer; |
| bool link, link_changed; |
| |
| if (urb->actual_length < 16) |
| return; |
| |
| link = !(buf[1] == 0x20); |
| link_changed = netif_carrier_ok(dev->net) != link; |
| if (link_changed) { |
| usbnet_link_change(dev, link, 0); |
| netdev_dbg(dev->net, "Link Status is: %d\n", link); |
| } |
| } |
| |
| static const struct driver_info moschip_info = { |
| .description = "MOSCHIP 7830/7832/7730 usb-NET adapter", |
| .bind = mcs7830_bind, |
| .rx_fixup = mcs7830_rx_fixup, |
| .flags = FLAG_ETHER | FLAG_LINK_INTR, |
| .status = mcs7830_status, |
| .in = 1, |
| .out = 2, |
| }; |
| |
| static const struct driver_info sitecom_info = { |
| .description = "Sitecom LN-30 usb-NET adapter", |
| .bind = mcs7830_bind, |
| .rx_fixup = mcs7830_rx_fixup, |
| .flags = FLAG_ETHER | FLAG_LINK_INTR, |
| .status = mcs7830_status, |
| .in = 1, |
| .out = 2, |
| }; |
| |
| static const struct usb_device_id products[] = { |
| { |
| USB_DEVICE(MCS7830_VENDOR_ID, MCS7832_PRODUCT_ID), |
| .driver_info = (unsigned long) &moschip_info, |
| }, |
| { |
| USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID), |
| .driver_info = (unsigned long) &moschip_info, |
| }, |
| { |
| USB_DEVICE(MCS7830_VENDOR_ID, MCS7730_PRODUCT_ID), |
| .driver_info = (unsigned long) &moschip_info, |
| }, |
| { |
| USB_DEVICE(SITECOM_VENDOR_ID, LN_030_PRODUCT_ID), |
| .driver_info = (unsigned long) &sitecom_info, |
| }, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(usb, products); |
| |
| static int mcs7830_reset_resume (struct usb_interface *intf) |
| { |
| /* YES, this function is successful enough that ethtool -d |
| does show same output pre-/post-suspend */ |
| |
| struct usbnet *dev = usb_get_intfdata(intf); |
| |
| mcs7830_apply_base_config(dev); |
| |
| usbnet_resume(intf); |
| |
| return 0; |
| } |
| |
| static struct usb_driver mcs7830_driver = { |
| .name = driver_name, |
| .id_table = products, |
| .probe = usbnet_probe, |
| .disconnect = usbnet_disconnect, |
| .suspend = usbnet_suspend, |
| .resume = usbnet_resume, |
| .reset_resume = mcs7830_reset_resume, |
| .disable_hub_initiated_lpm = 1, |
| }; |
| |
| module_usb_driver(mcs7830_driver); |
| |
| MODULE_DESCRIPTION("USB to network adapter MCS7830)"); |
| MODULE_LICENSE("GPL"); |