linux/drivers/net/usb/asix_devices.c
<<
>>
Prefs
   1/*
   2 * ASIX AX8817X based USB 2.0 Ethernet Devices
   3 * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
   4 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
   5 * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
   6 * Copyright (c) 2002-2003 TiVo Inc.
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22#include "asix.h"
  23
  24#define PHY_MODE_MARVELL        0x0000
  25#define MII_MARVELL_LED_CTRL    0x0018
  26#define MII_MARVELL_STATUS      0x001b
  27#define MII_MARVELL_CTRL        0x0014
  28
  29#define MARVELL_LED_MANUAL      0x0019
  30
  31#define MARVELL_STATUS_HWCFG    0x0004
  32
  33#define MARVELL_CTRL_TXDELAY    0x0002
  34#define MARVELL_CTRL_RXDELAY    0x0080
  35
  36#define PHY_MODE_RTL8211CL      0x000C
  37
  38struct ax88172_int_data {
  39        __le16 res1;
  40        u8 link;
  41        __le16 res2;
  42        u8 status;
  43        __le16 res3;
  44} __packed;
  45
  46static void asix_status(struct usbnet *dev, struct urb *urb)
  47{
  48        struct ax88172_int_data *event;
  49        int link;
  50
  51        if (urb->actual_length < 8)
  52                return;
  53
  54        event = urb->transfer_buffer;
  55        link = event->link & 0x01;
  56        if (netif_carrier_ok(dev->net) != link) {
  57                usbnet_link_change(dev, link, 1);
  58                netdev_dbg(dev->net, "Link Status is: %d\n", link);
  59        }
  60}
  61
  62static void asix_set_netdev_dev_addr(struct usbnet *dev, u8 *addr)
  63{
  64        if (is_valid_ether_addr(addr)) {
  65                memcpy(dev->net->dev_addr, addr, ETH_ALEN);
  66        } else {
  67                netdev_info(dev->net, "invalid hw address, using random\n");
  68                eth_hw_addr_random(dev->net);
  69        }
  70}
  71
  72/* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */
  73static u32 asix_get_phyid(struct usbnet *dev)
  74{
  75        int phy_reg;
  76        u32 phy_id;
  77        int i;
  78
  79        /* Poll for the rare case the FW or phy isn't ready yet.  */
  80        for (i = 0; i < 100; i++) {
  81                phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
  82                if (phy_reg != 0 && phy_reg != 0xFFFF)
  83                        break;
  84                mdelay(1);
  85        }
  86
  87        if (phy_reg <= 0 || phy_reg == 0xFFFF)
  88                return 0;
  89
  90        phy_id = (phy_reg & 0xffff) << 16;
  91
  92        phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2);
  93        if (phy_reg < 0)
  94                return 0;
  95
  96        phy_id |= (phy_reg & 0xffff);
  97
  98        return phy_id;
  99}
 100
 101static u32 asix_get_link(struct net_device *net)
 102{
 103        struct usbnet *dev = netdev_priv(net);
 104
 105        return mii_link_ok(&dev->mii);
 106}
 107
 108static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
 109{
 110        struct usbnet *dev = netdev_priv(net);
 111
 112        return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
 113}
 114
 115/* We need to override some ethtool_ops so we require our
 116   own structure so we don't interfere with other usbnet
 117   devices that may be connected at the same time. */
 118static const struct ethtool_ops ax88172_ethtool_ops = {
 119        .get_drvinfo            = asix_get_drvinfo,
 120        .get_link               = asix_get_link,
 121        .get_msglevel           = usbnet_get_msglevel,
 122        .set_msglevel           = usbnet_set_msglevel,
 123        .get_wol                = asix_get_wol,
 124        .set_wol                = asix_set_wol,
 125        .get_eeprom_len         = asix_get_eeprom_len,
 126        .get_eeprom             = asix_get_eeprom,
 127        .set_eeprom             = asix_set_eeprom,
 128        .get_settings           = usbnet_get_settings,
 129        .set_settings           = usbnet_set_settings,
 130        .nway_reset             = usbnet_nway_reset,
 131};
 132
 133static void ax88172_set_multicast(struct net_device *net)
 134{
 135        struct usbnet *dev = netdev_priv(net);
 136        struct asix_data *data = (struct asix_data *)&dev->data;
 137        u8 rx_ctl = 0x8c;
 138
 139        if (net->flags & IFF_PROMISC) {
 140                rx_ctl |= 0x01;
 141        } else if (net->flags & IFF_ALLMULTI ||
 142                   netdev_mc_count(net) > AX_MAX_MCAST) {
 143                rx_ctl |= 0x02;
 144        } else if (netdev_mc_empty(net)) {
 145                /* just broadcast and directed */
 146        } else {
 147                /* We use the 20 byte dev->data
 148                 * for our 8 byte filter buffer
 149                 * to avoid allocating memory that
 150                 * is tricky to free later */
 151                struct netdev_hw_addr *ha;
 152                u32 crc_bits;
 153
 154                memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
 155
 156                /* Build the multicast hash filter. */
 157                netdev_for_each_mc_addr(ha, net) {
 158                        crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
 159                        data->multi_filter[crc_bits >> 3] |=
 160                            1 << (crc_bits & 7);
 161                }
 162
 163                asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
 164                                   AX_MCAST_FILTER_SIZE, data->multi_filter);
 165
 166                rx_ctl |= 0x10;
 167        }
 168
 169        asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
 170}
 171
 172static int ax88172_link_reset(struct usbnet *dev)
 173{
 174        u8 mode;
 175        struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
 176
 177        mii_check_media(&dev->mii, 1, 1);
 178        mii_ethtool_gset(&dev->mii, &ecmd);
 179        mode = AX88172_MEDIUM_DEFAULT;
 180
 181        if (ecmd.duplex != DUPLEX_FULL)
 182                mode |= ~AX88172_MEDIUM_FD;
 183
 184        netdev_dbg(dev->net, "ax88172_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
 185                   ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
 186
 187        asix_write_medium_mode(dev, mode);
 188
 189        return 0;
 190}
 191
 192static const struct net_device_ops ax88172_netdev_ops = {
 193        .ndo_open               = usbnet_open,
 194        .ndo_stop               = usbnet_stop,
 195        .ndo_start_xmit         = usbnet_start_xmit,
 196        .ndo_tx_timeout         = usbnet_tx_timeout,
 197        .ndo_change_mtu         = usbnet_change_mtu,
 198        .ndo_set_mac_address    = eth_mac_addr,
 199        .ndo_validate_addr      = eth_validate_addr,
 200        .ndo_do_ioctl           = asix_ioctl,
 201        .ndo_set_rx_mode        = ax88172_set_multicast,
 202};
 203
 204static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
 205{
 206        int ret = 0;
 207        u8 buf[ETH_ALEN];
 208        int i;
 209        unsigned long gpio_bits = dev->driver_info->data;
 210
 211        usbnet_get_endpoints(dev,intf);
 212
 213        /* Toggle the GPIOs in a manufacturer/model specific way */
 214        for (i = 2; i >= 0; i--) {
 215                ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
 216                                (gpio_bits >> (i * 8)) & 0xff, 0, 0, NULL);
 217                if (ret < 0)
 218                        goto out;
 219                msleep(5);
 220        }
 221
 222        ret = asix_write_rx_ctl(dev, 0x80);
 223        if (ret < 0)
 224                goto out;
 225
 226        /* Get the MAC address */
 227        ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
 228        if (ret < 0) {
 229                netdev_dbg(dev->net, "read AX_CMD_READ_NODE_ID failed: %d\n",
 230                           ret);
 231                goto out;
 232        }
 233
 234        asix_set_netdev_dev_addr(dev, buf);
 235
 236        /* Initialize MII structure */
 237        dev->mii.dev = dev->net;
 238        dev->mii.mdio_read = asix_mdio_read;
 239        dev->mii.mdio_write = asix_mdio_write;
 240        dev->mii.phy_id_mask = 0x3f;
 241        dev->mii.reg_num_mask = 0x1f;
 242        dev->mii.phy_id = asix_get_phy_addr(dev);
 243
 244        dev->net->netdev_ops = &ax88172_netdev_ops;
 245        dev->net->ethtool_ops = &ax88172_ethtool_ops;
 246        dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
 247        dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
 248
 249        asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
 250        asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
 251                ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
 252        mii_nway_restart(&dev->mii);
 253
 254        return 0;
 255
 256out:
 257        return ret;
 258}
 259
 260static const struct ethtool_ops ax88772_ethtool_ops = {
 261        .get_drvinfo            = asix_get_drvinfo,
 262        .get_link               = asix_get_link,
 263        .get_msglevel           = usbnet_get_msglevel,
 264        .set_msglevel           = usbnet_set_msglevel,
 265        .get_wol                = asix_get_wol,
 266        .set_wol                = asix_set_wol,
 267        .get_eeprom_len         = asix_get_eeprom_len,
 268        .get_eeprom             = asix_get_eeprom,
 269        .set_eeprom             = asix_set_eeprom,
 270        .get_settings           = usbnet_get_settings,
 271        .set_settings           = usbnet_set_settings,
 272        .nway_reset             = usbnet_nway_reset,
 273};
 274
 275static int ax88772_link_reset(struct usbnet *dev)
 276{
 277        u16 mode;
 278        struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
 279
 280        mii_check_media(&dev->mii, 1, 1);
 281        mii_ethtool_gset(&dev->mii, &ecmd);
 282        mode = AX88772_MEDIUM_DEFAULT;
 283
 284        if (ethtool_cmd_speed(&ecmd) != SPEED_100)
 285                mode &= ~AX_MEDIUM_PS;
 286
 287        if (ecmd.duplex != DUPLEX_FULL)
 288                mode &= ~AX_MEDIUM_FD;
 289
 290        netdev_dbg(dev->net, "ax88772_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
 291                   ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
 292
 293        asix_write_medium_mode(dev, mode);
 294
 295        return 0;
 296}
 297
 298static int ax88772_reset(struct usbnet *dev)
 299{
 300        struct asix_data *data = (struct asix_data *)&dev->data;
 301        int ret, embd_phy;
 302        u16 rx_ctl;
 303
 304        ret = asix_write_gpio(dev,
 305                        AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5);
 306        if (ret < 0)
 307                goto out;
 308
 309        embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
 310
 311        ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
 312        if (ret < 0) {
 313                netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
 314                goto out;
 315        }
 316
 317        ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL);
 318        if (ret < 0)
 319                goto out;
 320
 321        msleep(150);
 322
 323        ret = asix_sw_reset(dev, AX_SWRESET_CLEAR);
 324        if (ret < 0)
 325                goto out;
 326
 327        msleep(150);
 328
 329        if (embd_phy) {
 330                ret = asix_sw_reset(dev, AX_SWRESET_IPRL);
 331                if (ret < 0)
 332                        goto out;
 333        } else {
 334                ret = asix_sw_reset(dev, AX_SWRESET_PRTE);
 335                if (ret < 0)
 336                        goto out;
 337        }
 338
 339        msleep(150);
 340        rx_ctl = asix_read_rx_ctl(dev);
 341        netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl);
 342        ret = asix_write_rx_ctl(dev, 0x0000);
 343        if (ret < 0)
 344                goto out;
 345
 346        rx_ctl = asix_read_rx_ctl(dev);
 347        netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl);
 348
 349        ret = asix_sw_reset(dev, AX_SWRESET_PRL);
 350        if (ret < 0)
 351                goto out;
 352
 353        msleep(150);
 354
 355        ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL);
 356        if (ret < 0)
 357                goto out;
 358
 359        msleep(150);
 360
 361        asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
 362        asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
 363                        ADVERTISE_ALL | ADVERTISE_CSMA);
 364        mii_nway_restart(&dev->mii);
 365
 366        ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT);
 367        if (ret < 0)
 368                goto out;
 369
 370        ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
 371                                AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
 372                                AX88772_IPG2_DEFAULT, 0, NULL);
 373        if (ret < 0) {
 374                netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
 375                goto out;
 376        }
 377
 378        /* Rewrite MAC address */
 379        memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
 380        ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
 381                                                        data->mac_addr);
 382        if (ret < 0)
 383                goto out;
 384
 385        /* Set RX_CTL to default values with 2k buffer, and enable cactus */
 386        ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL);
 387        if (ret < 0)
 388                goto out;
 389
 390        rx_ctl = asix_read_rx_ctl(dev);
 391        netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
 392                   rx_ctl);
 393
 394        rx_ctl = asix_read_medium_status(dev);
 395        netdev_dbg(dev->net,
 396                   "Medium Status is 0x%04x after all initializations\n",
 397                   rx_ctl);
 398
 399        return 0;
 400
 401out:
 402        return ret;
 403
 404}
 405
 406static const struct net_device_ops ax88772_netdev_ops = {
 407        .ndo_open               = usbnet_open,
 408        .ndo_stop               = usbnet_stop,
 409        .ndo_start_xmit         = usbnet_start_xmit,
 410        .ndo_tx_timeout         = usbnet_tx_timeout,
 411        .ndo_change_mtu         = usbnet_change_mtu,
 412        .ndo_set_mac_address    = asix_set_mac_address,
 413        .ndo_validate_addr      = eth_validate_addr,
 414        .ndo_do_ioctl           = asix_ioctl,
 415        .ndo_set_rx_mode        = asix_set_multicast,
 416};
 417
 418static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 419{
 420        int ret, embd_phy, i;
 421        u8 buf[ETH_ALEN];
 422        u32 phyid;
 423
 424        usbnet_get_endpoints(dev,intf);
 425
 426        /* Get the MAC address */
 427        if (dev->driver_info->data & FLAG_EEPROM_MAC) {
 428                for (i = 0; i < (ETH_ALEN >> 1); i++) {
 429                        ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x04 + i,
 430                                        0, 2, buf + i * 2);
 431                        if (ret < 0)
 432                                break;
 433                }
 434        } else {
 435                ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
 436                                0, 0, ETH_ALEN, buf);
 437        }
 438
 439        if (ret < 0) {
 440                netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
 441                return ret;
 442        }
 443
 444        asix_set_netdev_dev_addr(dev, buf);
 445
 446        /* Initialize MII structure */
 447        dev->mii.dev = dev->net;
 448        dev->mii.mdio_read = asix_mdio_read;
 449        dev->mii.mdio_write = asix_mdio_write;
 450        dev->mii.phy_id_mask = 0x1f;
 451        dev->mii.reg_num_mask = 0x1f;
 452        dev->mii.phy_id = asix_get_phy_addr(dev);
 453
 454        dev->net->netdev_ops = &ax88772_netdev_ops;
 455        dev->net->ethtool_ops = &ax88772_ethtool_ops;
 456        dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
 457        dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
 458
 459        embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0);
 460
 461        /* Reset the PHY to normal operation mode */
 462        ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
 463        if (ret < 0) {
 464                netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
 465                return ret;
 466        }
 467
 468        ax88772_reset(dev);
 469
 470        /* Read PHYID register *AFTER* the PHY was reset properly */
 471        phyid = asix_get_phyid(dev);
 472        netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
 473
 474        /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
 475        if (dev->driver_info->flags & FLAG_FRAMING_AX) {
 476                /* hard_mtu  is still the default - the device does not support
 477                   jumbo eth frames */
 478                dev->rx_urb_size = 2048;
 479        }
 480
 481        dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
 482        if (!dev->driver_priv)
 483                return -ENOMEM;
 484
 485        return 0;
 486}
 487
 488static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf)
 489{
 490        kfree(dev->driver_priv);
 491}
 492
 493static const struct ethtool_ops ax88178_ethtool_ops = {
 494        .get_drvinfo            = asix_get_drvinfo,
 495        .get_link               = asix_get_link,
 496        .get_msglevel           = usbnet_get_msglevel,
 497        .set_msglevel           = usbnet_set_msglevel,
 498        .get_wol                = asix_get_wol,
 499        .set_wol                = asix_set_wol,
 500        .get_eeprom_len         = asix_get_eeprom_len,
 501        .get_eeprom             = asix_get_eeprom,
 502        .set_eeprom             = asix_set_eeprom,
 503        .get_settings           = usbnet_get_settings,
 504        .set_settings           = usbnet_set_settings,
 505        .nway_reset             = usbnet_nway_reset,
 506};
 507
 508static int marvell_phy_init(struct usbnet *dev)
 509{
 510        struct asix_data *data = (struct asix_data *)&dev->data;
 511        u16 reg;
 512
 513        netdev_dbg(dev->net, "marvell_phy_init()\n");
 514
 515        reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS);
 516        netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg);
 517
 518        asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL,
 519                        MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY);
 520
 521        if (data->ledmode) {
 522                reg = asix_mdio_read(dev->net, dev->mii.phy_id,
 523                        MII_MARVELL_LED_CTRL);
 524                netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg);
 525
 526                reg &= 0xf8ff;
 527                reg |= (1 + 0x0100);
 528                asix_mdio_write(dev->net, dev->mii.phy_id,
 529                        MII_MARVELL_LED_CTRL, reg);
 530
 531                reg = asix_mdio_read(dev->net, dev->mii.phy_id,
 532                        MII_MARVELL_LED_CTRL);
 533                netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg);
 534                reg &= 0xfc0f;
 535        }
 536
 537        return 0;
 538}
 539
 540static int rtl8211cl_phy_init(struct usbnet *dev)
 541{
 542        struct asix_data *data = (struct asix_data *)&dev->data;
 543
 544        netdev_dbg(dev->net, "rtl8211cl_phy_init()\n");
 545
 546        asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0005);
 547        asix_mdio_write (dev->net, dev->mii.phy_id, 0x0c, 0);
 548        asix_mdio_write (dev->net, dev->mii.phy_id, 0x01,
 549                asix_mdio_read (dev->net, dev->mii.phy_id, 0x01) | 0x0080);
 550        asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
 551
 552        if (data->ledmode == 12) {
 553                asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0002);
 554                asix_mdio_write (dev->net, dev->mii.phy_id, 0x1a, 0x00cb);
 555                asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
 556        }
 557
 558        return 0;
 559}
 560
 561static int marvell_led_status(struct usbnet *dev, u16 speed)
 562{
 563        u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL);
 564
 565        netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg);
 566
 567        /* Clear out the center LED bits - 0x03F0 */
 568        reg &= 0xfc0f;
 569
 570        switch (speed) {
 571                case SPEED_1000:
 572                        reg |= 0x03e0;
 573                        break;
 574                case SPEED_100:
 575                        reg |= 0x03b0;
 576                        break;
 577                default:
 578                        reg |= 0x02f0;
 579        }
 580
 581        netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg);
 582        asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg);
 583
 584        return 0;
 585}
 586
 587static int ax88178_reset(struct usbnet *dev)
 588{
 589        struct asix_data *data = (struct asix_data *)&dev->data;
 590        int ret;
 591        __le16 eeprom;
 592        u8 status;
 593        int gpio0 = 0;
 594        u32 phyid;
 595
 596        asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
 597        netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status);
 598
 599        asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL);
 600        asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom);
 601        asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL);
 602
 603        netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom);
 604
 605        if (eeprom == cpu_to_le16(0xffff)) {
 606                data->phymode = PHY_MODE_MARVELL;
 607                data->ledmode = 0;
 608                gpio0 = 1;
 609        } else {
 610                data->phymode = le16_to_cpu(eeprom) & 0x7F;
 611                data->ledmode = le16_to_cpu(eeprom) >> 8;
 612                gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
 613        }
 614        netdev_dbg(dev->net, "GPIO0: %d, PhyMode: %d\n", gpio0, data->phymode);
 615
 616        /* Power up external GigaPHY through AX88178 GPIO pin */
 617        asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
 618        if ((le16_to_cpu(eeprom) >> 8) != 1) {
 619                asix_write_gpio(dev, 0x003c, 30);
 620                asix_write_gpio(dev, 0x001c, 300);
 621                asix_write_gpio(dev, 0x003c, 30);
 622        } else {
 623                netdev_dbg(dev->net, "gpio phymode == 1 path\n");
 624                asix_write_gpio(dev, AX_GPIO_GPO1EN, 30);
 625                asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30);
 626        }
 627
 628        /* Read PHYID register *AFTER* powering up PHY */
 629        phyid = asix_get_phyid(dev);
 630        netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
 631
 632        /* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */
 633        asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL);
 634
 635        asix_sw_reset(dev, 0);
 636        msleep(150);
 637
 638        asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
 639        msleep(150);
 640
 641        asix_write_rx_ctl(dev, 0);
 642
 643        if (data->phymode == PHY_MODE_MARVELL) {
 644                marvell_phy_init(dev);
 645                msleep(60);
 646        } else if (data->phymode == PHY_MODE_RTL8211CL)
 647                rtl8211cl_phy_init(dev);
 648
 649        asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR,
 650                        BMCR_RESET | BMCR_ANENABLE);
 651        asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
 652                        ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
 653        asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
 654                        ADVERTISE_1000FULL);
 655
 656        mii_nway_restart(&dev->mii);
 657
 658        ret = asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT);
 659        if (ret < 0)
 660                return ret;
 661
 662        /* Rewrite MAC address */
 663        memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
 664        ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
 665                                                        data->mac_addr);
 666        if (ret < 0)
 667                return ret;
 668
 669        ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL);
 670        if (ret < 0)
 671                return ret;
 672
 673        return 0;
 674}
 675
 676static int ax88178_link_reset(struct usbnet *dev)
 677{
 678        u16 mode;
 679        struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
 680        struct asix_data *data = (struct asix_data *)&dev->data;
 681        u32 speed;
 682
 683        netdev_dbg(dev->net, "ax88178_link_reset()\n");
 684
 685        mii_check_media(&dev->mii, 1, 1);
 686        mii_ethtool_gset(&dev->mii, &ecmd);
 687        mode = AX88178_MEDIUM_DEFAULT;
 688        speed = ethtool_cmd_speed(&ecmd);
 689
 690        if (speed == SPEED_1000)
 691                mode |= AX_MEDIUM_GM;
 692        else if (speed == SPEED_100)
 693                mode |= AX_MEDIUM_PS;
 694        else
 695                mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
 696
 697        mode |= AX_MEDIUM_ENCK;
 698
 699        if (ecmd.duplex == DUPLEX_FULL)
 700                mode |= AX_MEDIUM_FD;
 701        else
 702                mode &= ~AX_MEDIUM_FD;
 703
 704        netdev_dbg(dev->net, "ax88178_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
 705                   speed, ecmd.duplex, mode);
 706
 707        asix_write_medium_mode(dev, mode);
 708
 709        if (data->phymode == PHY_MODE_MARVELL && data->ledmode)
 710                marvell_led_status(dev, speed);
 711
 712        return 0;
 713}
 714
 715static void ax88178_set_mfb(struct usbnet *dev)
 716{
 717        u16 mfb = AX_RX_CTL_MFB_16384;
 718        u16 rxctl;
 719        u16 medium;
 720        int old_rx_urb_size = dev->rx_urb_size;
 721
 722        if (dev->hard_mtu < 2048) {
 723                dev->rx_urb_size = 2048;
 724                mfb = AX_RX_CTL_MFB_2048;
 725        } else if (dev->hard_mtu < 4096) {
 726                dev->rx_urb_size = 4096;
 727                mfb = AX_RX_CTL_MFB_4096;
 728        } else if (dev->hard_mtu < 8192) {
 729                dev->rx_urb_size = 8192;
 730                mfb = AX_RX_CTL_MFB_8192;
 731        } else if (dev->hard_mtu < 16384) {
 732                dev->rx_urb_size = 16384;
 733                mfb = AX_RX_CTL_MFB_16384;
 734        }
 735
 736        rxctl = asix_read_rx_ctl(dev);
 737        asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb);
 738
 739        medium = asix_read_medium_status(dev);
 740        if (dev->net->mtu > 1500)
 741                medium |= AX_MEDIUM_JFE;
 742        else
 743                medium &= ~AX_MEDIUM_JFE;
 744        asix_write_medium_mode(dev, medium);
 745
 746        if (dev->rx_urb_size > old_rx_urb_size)
 747                usbnet_unlink_rx_urbs(dev);
 748}
 749
 750static int ax88178_change_mtu(struct net_device *net, int new_mtu)
 751{
 752        struct usbnet *dev = netdev_priv(net);
 753        int ll_mtu = new_mtu + net->hard_header_len + 4;
 754
 755        netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu);
 756
 757        if (new_mtu <= 0 || ll_mtu > 16384)
 758                return -EINVAL;
 759
 760        if ((ll_mtu % dev->maxpacket) == 0)
 761                return -EDOM;
 762
 763        net->mtu = new_mtu;
 764        dev->hard_mtu = net->mtu + net->hard_header_len;
 765        ax88178_set_mfb(dev);
 766
 767        /* max qlen depend on hard_mtu and rx_urb_size */
 768        usbnet_update_max_qlen(dev);
 769
 770        return 0;
 771}
 772
 773static const struct net_device_ops ax88178_netdev_ops = {
 774        .ndo_open               = usbnet_open,
 775        .ndo_stop               = usbnet_stop,
 776        .ndo_start_xmit         = usbnet_start_xmit,
 777        .ndo_tx_timeout         = usbnet_tx_timeout,
 778        .ndo_set_mac_address    = asix_set_mac_address,
 779        .ndo_validate_addr      = eth_validate_addr,
 780        .ndo_set_rx_mode        = asix_set_multicast,
 781        .ndo_do_ioctl           = asix_ioctl,
 782        .ndo_change_mtu         = ax88178_change_mtu,
 783};
 784
 785static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 786{
 787        int ret;
 788        u8 buf[ETH_ALEN];
 789
 790        usbnet_get_endpoints(dev,intf);
 791
 792        /* Get the MAC address */
 793        ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
 794        if (ret < 0) {
 795                netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
 796                return ret;
 797        }
 798
 799        asix_set_netdev_dev_addr(dev, buf);
 800
 801        /* Initialize MII structure */
 802        dev->mii.dev = dev->net;
 803        dev->mii.mdio_read = asix_mdio_read;
 804        dev->mii.mdio_write = asix_mdio_write;
 805        dev->mii.phy_id_mask = 0x1f;
 806        dev->mii.reg_num_mask = 0xff;
 807        dev->mii.supports_gmii = 1;
 808        dev->mii.phy_id = asix_get_phy_addr(dev);
 809
 810        dev->net->netdev_ops = &ax88178_netdev_ops;
 811        dev->net->ethtool_ops = &ax88178_ethtool_ops;
 812
 813        /* Blink LEDS so users know driver saw dongle */
 814        asix_sw_reset(dev, 0);
 815        msleep(150);
 816
 817        asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
 818        msleep(150);
 819
 820        /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
 821        if (dev->driver_info->flags & FLAG_FRAMING_AX) {
 822                /* hard_mtu  is still the default - the device does not support
 823                   jumbo eth frames */
 824                dev->rx_urb_size = 2048;
 825        }
 826
 827        dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
 828        if (!dev->driver_priv)
 829                        return -ENOMEM;
 830
 831        return 0;
 832}
 833
 834static const struct driver_info ax8817x_info = {
 835        .description = "ASIX AX8817x USB 2.0 Ethernet",
 836        .bind = ax88172_bind,
 837        .status = asix_status,
 838        .link_reset = ax88172_link_reset,
 839        .reset = ax88172_link_reset,
 840        .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 841        .data = 0x00130103,
 842};
 843
 844static const struct driver_info dlink_dub_e100_info = {
 845        .description = "DLink DUB-E100 USB Ethernet",
 846        .bind = ax88172_bind,
 847        .status = asix_status,
 848        .link_reset = ax88172_link_reset,
 849        .reset = ax88172_link_reset,
 850        .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 851        .data = 0x009f9d9f,
 852};
 853
 854static const struct driver_info netgear_fa120_info = {
 855        .description = "Netgear FA-120 USB Ethernet",
 856        .bind = ax88172_bind,
 857        .status = asix_status,
 858        .link_reset = ax88172_link_reset,
 859        .reset = ax88172_link_reset,
 860        .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 861        .data = 0x00130103,
 862};
 863
 864static const struct driver_info hawking_uf200_info = {
 865        .description = "Hawking UF200 USB Ethernet",
 866        .bind = ax88172_bind,
 867        .status = asix_status,
 868        .link_reset = ax88172_link_reset,
 869        .reset = ax88172_link_reset,
 870        .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 871        .data = 0x001f1d1f,
 872};
 873
 874static const struct driver_info ax88772_info = {
 875        .description = "ASIX AX88772 USB 2.0 Ethernet",
 876        .bind = ax88772_bind,
 877        .unbind = ax88772_unbind,
 878        .status = asix_status,
 879        .link_reset = ax88772_link_reset,
 880        .reset = ax88772_link_reset,
 881        .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET,
 882        .rx_fixup = asix_rx_fixup_common,
 883        .tx_fixup = asix_tx_fixup,
 884};
 885
 886static const struct driver_info ax88772b_info = {
 887        .description = "ASIX AX88772B USB 2.0 Ethernet",
 888        .bind = ax88772_bind,
 889        .unbind = ax88772_unbind,
 890        .status = asix_status,
 891        .link_reset = ax88772_link_reset,
 892        .reset = ax88772_reset,
 893        .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 894                 FLAG_MULTI_PACKET,
 895        .rx_fixup = asix_rx_fixup_common,
 896        .tx_fixup = asix_tx_fixup,
 897        .data = FLAG_EEPROM_MAC,
 898};
 899
 900static const struct driver_info ax88178_info = {
 901        .description = "ASIX AX88178 USB 2.0 Ethernet",
 902        .bind = ax88178_bind,
 903        .unbind = ax88772_unbind,
 904        .status = asix_status,
 905        .link_reset = ax88178_link_reset,
 906        .reset = ax88178_reset,
 907        .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 908                 FLAG_MULTI_PACKET,
 909        .rx_fixup = asix_rx_fixup_common,
 910        .tx_fixup = asix_tx_fixup,
 911};
 912
 913/*
 914 * USBLINK 20F9 "USB 2.0 LAN" USB ethernet adapter, typically found in
 915 * no-name packaging.
 916 * USB device strings are:
 917 *   1: Manufacturer: USBLINK
 918 *   2: Product: HG20F9 USB2.0
 919 *   3: Serial: 000003
 920 * Appears to be compatible with Asix 88772B.
 921 */
 922static const struct driver_info hg20f9_info = {
 923        .description = "HG20F9 USB 2.0 Ethernet",
 924        .bind = ax88772_bind,
 925        .unbind = ax88772_unbind,
 926        .status = asix_status,
 927        .link_reset = ax88772_link_reset,
 928        .reset = ax88772_reset,
 929        .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 930                 FLAG_MULTI_PACKET,
 931        .rx_fixup = asix_rx_fixup_common,
 932        .tx_fixup = asix_tx_fixup,
 933        .data = FLAG_EEPROM_MAC,
 934};
 935
 936static const struct usb_device_id       products [] = {
 937{
 938        // Linksys USB200M
 939        USB_DEVICE (0x077b, 0x2226),
 940        .driver_info =  (unsigned long) &ax8817x_info,
 941}, {
 942        // Netgear FA120
 943        USB_DEVICE (0x0846, 0x1040),
 944        .driver_info =  (unsigned long) &netgear_fa120_info,
 945}, {
 946        // DLink DUB-E100
 947        USB_DEVICE (0x2001, 0x1a00),
 948        .driver_info =  (unsigned long) &dlink_dub_e100_info,
 949}, {
 950        // Intellinet, ST Lab USB Ethernet
 951        USB_DEVICE (0x0b95, 0x1720),
 952        .driver_info =  (unsigned long) &ax8817x_info,
 953}, {
 954        // Hawking UF200, TrendNet TU2-ET100
 955        USB_DEVICE (0x07b8, 0x420a),
 956        .driver_info =  (unsigned long) &hawking_uf200_info,
 957}, {
 958        // Billionton Systems, USB2AR
 959        USB_DEVICE (0x08dd, 0x90ff),
 960        .driver_info =  (unsigned long) &ax8817x_info,
 961}, {
 962        // Billionton Systems, GUSB2AM-1G-B
 963        USB_DEVICE(0x08dd, 0x0114),
 964        .driver_info =  (unsigned long) &ax88178_info,
 965}, {
 966        // ATEN UC210T
 967        USB_DEVICE (0x0557, 0x2009),
 968        .driver_info =  (unsigned long) &ax8817x_info,
 969}, {
 970        // Buffalo LUA-U2-KTX
 971        USB_DEVICE (0x0411, 0x003d),
 972        .driver_info =  (unsigned long) &ax8817x_info,
 973}, {
 974        // Buffalo LUA-U2-GT 10/100/1000
 975        USB_DEVICE (0x0411, 0x006e),
 976        .driver_info =  (unsigned long) &ax88178_info,
 977}, {
 978        // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
 979        USB_DEVICE (0x6189, 0x182d),
 980        .driver_info =  (unsigned long) &ax8817x_info,
 981}, {
 982        // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
 983        USB_DEVICE (0x0df6, 0x0056),
 984        .driver_info =  (unsigned long) &ax88178_info,
 985}, {
 986        // Sitecom LN-028 "USB 2.0 10/100/1000 Ethernet adapter"
 987        USB_DEVICE (0x0df6, 0x061c),
 988        .driver_info =  (unsigned long) &ax88178_info,
 989}, {
 990        // corega FEther USB2-TX
 991        USB_DEVICE (0x07aa, 0x0017),
 992        .driver_info =  (unsigned long) &ax8817x_info,
 993}, {
 994        // Surecom EP-1427X-2
 995        USB_DEVICE (0x1189, 0x0893),
 996        .driver_info = (unsigned long) &ax8817x_info,
 997}, {
 998        // goodway corp usb gwusb2e
 999        USB_DEVICE (0x1631, 0x6200),
1000        .driver_info = (unsigned long) &ax8817x_info,
1001}, {
1002        // JVC MP-PRX1 Port Replicator
1003        USB_DEVICE (0x04f1, 0x3008),
1004        .driver_info = (unsigned long) &ax8817x_info,
1005}, {
1006        // Lenovo U2L100P 10/100
1007        USB_DEVICE (0x17ef, 0x7203),
1008        .driver_info = (unsigned long) &ax88772_info,
1009}, {
1010        // ASIX AX88772B 10/100
1011        USB_DEVICE (0x0b95, 0x772b),
1012        .driver_info = (unsigned long) &ax88772b_info,
1013}, {
1014        // ASIX AX88772 10/100
1015        USB_DEVICE (0x0b95, 0x7720),
1016        .driver_info = (unsigned long) &ax88772_info,
1017}, {
1018        // ASIX AX88178 10/100/1000
1019        USB_DEVICE (0x0b95, 0x1780),
1020        .driver_info = (unsigned long) &ax88178_info,
1021}, {
1022        // Logitec LAN-GTJ/U2A
1023        USB_DEVICE (0x0789, 0x0160),
1024        .driver_info = (unsigned long) &ax88178_info,
1025}, {
1026        // Linksys USB200M Rev 2
1027        USB_DEVICE (0x13b1, 0x0018),
1028        .driver_info = (unsigned long) &ax88772_info,
1029}, {
1030        // 0Q0 cable ethernet
1031        USB_DEVICE (0x1557, 0x7720),
1032        .driver_info = (unsigned long) &ax88772_info,
1033}, {
1034        // DLink DUB-E100 H/W Ver B1
1035        USB_DEVICE (0x07d1, 0x3c05),
1036        .driver_info = (unsigned long) &ax88772_info,
1037}, {
1038        // DLink DUB-E100 H/W Ver B1 Alternate
1039        USB_DEVICE (0x2001, 0x3c05),
1040        .driver_info = (unsigned long) &ax88772_info,
1041}, {
1042       // DLink DUB-E100 H/W Ver C1
1043       USB_DEVICE (0x2001, 0x1a02),
1044       .driver_info = (unsigned long) &ax88772_info,
1045}, {
1046        // Linksys USB1000
1047        USB_DEVICE (0x1737, 0x0039),
1048        .driver_info = (unsigned long) &ax88178_info,
1049}, {
1050        // IO-DATA ETG-US2
1051        USB_DEVICE (0x04bb, 0x0930),
1052        .driver_info = (unsigned long) &ax88178_info,
1053}, {
1054        // Belkin F5D5055
1055        USB_DEVICE(0x050d, 0x5055),
1056        .driver_info = (unsigned long) &ax88178_info,
1057}, {
1058        // Apple USB Ethernet Adapter
1059        USB_DEVICE(0x05ac, 0x1402),
1060        .driver_info = (unsigned long) &ax88772_info,
1061}, {
1062        // Cables-to-Go USB Ethernet Adapter
1063        USB_DEVICE(0x0b95, 0x772a),
1064        .driver_info = (unsigned long) &ax88772_info,
1065}, {
1066        // ABOCOM for pci
1067        USB_DEVICE(0x14ea, 0xab11),
1068        .driver_info = (unsigned long) &ax88178_info,
1069}, {
1070        // ASIX 88772a
1071        USB_DEVICE(0x0db0, 0xa877),
1072        .driver_info = (unsigned long) &ax88772_info,
1073}, {
1074        // Asus USB Ethernet Adapter
1075        USB_DEVICE (0x0b95, 0x7e2b),
1076        .driver_info = (unsigned long) &ax88772_info,
1077}, {
1078        /* ASIX 88172a demo board */
1079        USB_DEVICE(0x0b95, 0x172a),
1080        .driver_info = (unsigned long) &ax88172a_info,
1081}, {
1082        /*
1083         * USBLINK HG20F9 "USB 2.0 LAN"
1084         * Appears to have gazumped Linksys's manufacturer ID but
1085         * doesn't (yet) conflict with any known Linksys product.
1086         */
1087        USB_DEVICE(0x066b, 0x20f9),
1088        .driver_info = (unsigned long) &hg20f9_info,
1089},
1090        { },            // END
1091};
1092MODULE_DEVICE_TABLE(usb, products);
1093
1094static struct usb_driver asix_driver = {
1095        .name =         DRIVER_NAME,
1096        .id_table =     products,
1097        .probe =        usbnet_probe,
1098        .suspend =      usbnet_suspend,
1099        .resume =       usbnet_resume,
1100        .disconnect =   usbnet_disconnect,
1101        .supports_autosuspend = 1,
1102        .disable_hub_initiated_lpm = 1,
1103};
1104
1105module_usb_driver(asix_driver);
1106
1107MODULE_AUTHOR("David Hollis");
1108MODULE_VERSION(DRIVER_VERSION);
1109MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
1110MODULE_LICENSE("GPL");
1111
1112