drivers/net/usb/asix_devices.c

   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
  38 struct ax88172_int_data {
  39         __le16 res1;
  40         u8 link;
  41         __le16 res2;
  42         u8 status;
  43         __le16 res3;
  44 } __packed;
  45
  46 static 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
  62 static 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 */
  73 static 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
 101 static 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
 108 static 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. */
 118 static 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
 133 static 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
 172 static 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
 192 static 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
 204 static 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
 256 out:
 257         return ret;
 258 }
 259
 260 static 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
 275 static 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
 298 static 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
 401 out:
 402         return ret;
 403
 404 }
 405
 406 static 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
 418 static 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
 488 static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf)
 489 {
 490         if (dev->driver_priv)
 491                 kfree(dev->driver_priv);
 492 }
 493
 494 static const struct ethtool_ops ax88178_ethtool_ops = {
 495         .get_drvinfo            = asix_get_drvinfo,
 496         .get_link               = asix_get_link,
 497         .get_msglevel           = usbnet_get_msglevel,
 498         .set_msglevel           = usbnet_set_msglevel,
 499         .get_wol                = asix_get_wol,
 500         .set_wol                = asix_set_wol,
 501         .get_eeprom_len         = asix_get_eeprom_len,
 502         .get_eeprom             = asix_get_eeprom,
 503         .set_eeprom             = asix_set_eeprom,
 504         .get_settings           = usbnet_get_settings,
 505         .set_settings           = usbnet_set_settings,
 506         .nway_reset             = usbnet_nway_reset,
 507 };
 508
 509 static int marvell_phy_init(struct usbnet *dev)
 510 {
 511         struct asix_data *data = (struct asix_data *)&dev->data;
 512         u16 reg;
 513
 514         netdev_dbg(dev->net, "marvell_phy_init()\n");
 515
 516         reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS);
 517         netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg);
 518
 519         asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL,
 520                         MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY);
 521
 522         if (data->ledmode) {
 523                 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
 524                         MII_MARVELL_LED_CTRL);
 525                 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg);
 526
 527                 reg &= 0xf8ff;
 528                 reg |= (1 + 0x0100);
 529                 asix_mdio_write(dev->net, dev->mii.phy_id,
 530                         MII_MARVELL_LED_CTRL, reg);
 531
 532                 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
 533                         MII_MARVELL_LED_CTRL);
 534                 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg);
 535                 reg &= 0xfc0f;
 536         }
 537
 538         return 0;
 539 }
 540
 541 static int rtl8211cl_phy_init(struct usbnet *dev)
 542 {
 543         struct asix_data *data = (struct asix_data *)&dev->data;
 544
 545         netdev_dbg(dev->net, "rtl8211cl_phy_init()\n");
 546
 547         asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0005);
 548         asix_mdio_write (dev->net, dev->mii.phy_id, 0x0c, 0);
 549         asix_mdio_write (dev->net, dev->mii.phy_id, 0x01,
 550                 asix_mdio_read (dev->net, dev->mii.phy_id, 0x01) | 0x0080);
 551         asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
 552
 553         if (data->ledmode == 12) {
 554                 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0002);
 555                 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1a, 0x00cb);
 556                 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
 557         }
 558
 559         return 0;
 560 }
 561
 562 static int marvell_led_status(struct usbnet *dev, u16 speed)
 563 {
 564         u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL);
 565
 566         netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg);
 567
 568         /* Clear out the center LED bits - 0x03F0 */
 569         reg &= 0xfc0f;
 570
 571         switch (speed) {
 572                 case SPEED_1000:
 573                         reg |= 0x03e0;
 574                         break;
 575                 case SPEED_100:
 576                         reg |= 0x03b0;
 577                         break;
 578                 default:
 579                         reg |= 0x02f0;
 580         }
 581
 582         netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg);
 583         asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg);
 584
 585         return 0;
 586 }
 587
 588 static int ax88178_reset(struct usbnet *dev)
 589 {
 590         struct asix_data *data = (struct asix_data *)&dev->data;
 591         int ret;
 592         __le16 eeprom;
 593         u8 status;
 594         int gpio0 = 0;
 595         u32 phyid;
 596
 597         asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
 598         netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status);
 599
 600         asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL);
 601         asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom);
 602         asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL);
 603
 604         netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom);
 605
 606         if (eeprom == cpu_to_le16(0xffff)) {
 607                 data->phymode = PHY_MODE_MARVELL;
 608                 data->ledmode = 0;
 609                 gpio0 = 1;
 610         } else {
 611                 data->phymode = le16_to_cpu(eeprom) & 0x7F;
 612                 data->ledmode = le16_to_cpu(eeprom) >> 8;
 613                 gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
 614         }
 615         netdev_dbg(dev->net, "GPIO0: %d, PhyMode: %d\n", gpio0, data->phymode);
 616
 617         /* Power up external GigaPHY through AX88178 GPIO pin */
 618         asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
 619         if ((le16_to_cpu(eeprom) >> 8) != 1) {
 620                 asix_write_gpio(dev, 0x003c, 30);
 621                 asix_write_gpio(dev, 0x001c, 300);
 622                 asix_write_gpio(dev, 0x003c, 30);
 623         } else {
 624                 netdev_dbg(dev->net, "gpio phymode == 1 path\n");
 625                 asix_write_gpio(dev, AX_GPIO_GPO1EN, 30);
 626                 asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30);
 627         }
 628
 629         /* Read PHYID register *AFTER* powering up PHY */
 630         phyid = asix_get_phyid(dev);
 631         netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
 632
 633         /* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */
 634         asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL);
 635
 636         asix_sw_reset(dev, 0);
 637         msleep(150);
 638
 639         asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
 640         msleep(150);
 641
 642         asix_write_rx_ctl(dev, 0);
 643
 644         if (data->phymode == PHY_MODE_MARVELL) {
 645                 marvell_phy_init(dev);
 646                 msleep(60);
 647         } else if (data->phymode == PHY_MODE_RTL8211CL)
 648                 rtl8211cl_phy_init(dev);
 649
 650         asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR,
 651                         BMCR_RESET | BMCR_ANENABLE);
 652         asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
 653                         ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
 654         asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
 655                         ADVERTISE_1000FULL);
 656
 657         mii_nway_restart(&dev->mii);
 658
 659         ret = asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT);
 660         if (ret < 0)
 661                 return ret;
 662
 663         /* Rewrite MAC address */
 664         memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
 665         ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
 666                                                         data->mac_addr);
 667         if (ret < 0)
 668                 return ret;
 669
 670         ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL);
 671         if (ret < 0)
 672                 return ret;
 673
 674         return 0;
 675 }
 676
 677 static int ax88178_link_reset(struct usbnet *dev)
 678 {
 679         u16 mode;
 680         struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
 681         struct asix_data *data = (struct asix_data *)&dev->data;
 682         u32 speed;
 683
 684         netdev_dbg(dev->net, "ax88178_link_reset()\n");
 685
 686         mii_check_media(&dev->mii, 1, 1);
 687         mii_ethtool_gset(&dev->mii, &ecmd);
 688         mode = AX88178_MEDIUM_DEFAULT;
 689         speed = ethtool_cmd_speed(&ecmd);
 690
 691         if (speed == SPEED_1000)
 692                 mode |= AX_MEDIUM_GM;
 693         else if (speed == SPEED_100)
 694                 mode |= AX_MEDIUM_PS;
 695         else
 696                 mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
 697
 698         mode |= AX_MEDIUM_ENCK;
 699
 700         if (ecmd.duplex == DUPLEX_FULL)
 701                 mode |= AX_MEDIUM_FD;
 702         else
 703                 mode &= ~AX_MEDIUM_FD;
 704
 705         netdev_dbg(dev->net, "ax88178_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
 706                    speed, ecmd.duplex, mode);
 707
 708         asix_write_medium_mode(dev, mode);
 709
 710         if (data->phymode == PHY_MODE_MARVELL && data->ledmode)
 711                 marvell_led_status(dev, speed);
 712
 713         return 0;
 714 }
 715
 716 static void ax88178_set_mfb(struct usbnet *dev)
 717 {
 718         u16 mfb = AX_RX_CTL_MFB_16384;
 719         u16 rxctl;
 720         u16 medium;
 721         int old_rx_urb_size = dev->rx_urb_size;
 722
 723         if (dev->hard_mtu < 2048) {
 724                 dev->rx_urb_size = 2048;
 725                 mfb = AX_RX_CTL_MFB_2048;
 726         } else if (dev->hard_mtu < 4096) {
 727                 dev->rx_urb_size = 4096;
 728                 mfb = AX_RX_CTL_MFB_4096;
 729         } else if (dev->hard_mtu < 8192) {
 730                 dev->rx_urb_size = 8192;
 731                 mfb = AX_RX_CTL_MFB_8192;
 732         } else if (dev->hard_mtu < 16384) {
 733                 dev->rx_urb_size = 16384;
 734                 mfb = AX_RX_CTL_MFB_16384;
 735         }
 736
 737         rxctl = asix_read_rx_ctl(dev);
 738         asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb);
 739
 740         medium = asix_read_medium_status(dev);
 741         if (dev->net->mtu > 1500)
 742                 medium |= AX_MEDIUM_JFE;
 743         else
 744                 medium &= ~AX_MEDIUM_JFE;
 745         asix_write_medium_mode(dev, medium);
 746
 747         if (dev->rx_urb_size > old_rx_urb_size)
 748                 usbnet_unlink_rx_urbs(dev);
 749 }
 750
 751 static int ax88178_change_mtu(struct net_device *net, int new_mtu)
 752 {
 753         struct usbnet *dev = netdev_priv(net);
 754         int ll_mtu = new_mtu + net->hard_header_len + 4;
 755
 756         netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu);
 757
 758         if (new_mtu <= 0 || ll_mtu > 16384)
 759                 return -EINVAL;
 760
 761         if ((ll_mtu % dev->maxpacket) == 0)
 762                 return -EDOM;
 763
 764         net->mtu = new_mtu;
 765         dev->hard_mtu = net->mtu + net->hard_header_len;
 766         ax88178_set_mfb(dev);
 767
 768         /* max qlen depend on hard_mtu and rx_urb_size */
 769         usbnet_update_max_qlen(dev);
 770
 771         return 0;
 772 }
 773
 774 static const struct net_device_ops ax88178_netdev_ops = {
 775         .ndo_open               = usbnet_open,
 776         .ndo_stop               = usbnet_stop,
 777         .ndo_start_xmit         = usbnet_start_xmit,
 778         .ndo_tx_timeout         = usbnet_tx_timeout,
 779         .ndo_set_mac_address    = asix_set_mac_address,
 780         .ndo_validate_addr      = eth_validate_addr,
 781         .ndo_set_rx_mode        = asix_set_multicast,
 782         .ndo_do_ioctl           = asix_ioctl,
 783         .ndo_change_mtu         = ax88178_change_mtu,
 784 };
 785
 786 static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 787 {
 788         int ret;
 789         u8 buf[ETH_ALEN];
 790
 791         usbnet_get_endpoints(dev,intf);
 792
 793         /* Get the MAC address */
 794         ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
 795         if (ret < 0) {
 796                 netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
 797                 return ret;
 798         }
 799
 800         asix_set_netdev_dev_addr(dev, buf);
 801
 802         /* Initialize MII structure */
 803         dev->mii.dev = dev->net;
 804         dev->mii.mdio_read = asix_mdio_read;
 805         dev->mii.mdio_write = asix_mdio_write;
 806         dev->mii.phy_id_mask = 0x1f;
 807         dev->mii.reg_num_mask = 0xff;
 808         dev->mii.supports_gmii = 1;
 809         dev->mii.phy_id = asix_get_phy_addr(dev);
 810
 811         dev->net->netdev_ops = &ax88178_netdev_ops;
 812         dev->net->ethtool_ops = &ax88178_ethtool_ops;
 813
 814         /* Blink LEDS so users know driver saw dongle */
 815         asix_sw_reset(dev, 0);
 816         msleep(150);
 817
 818         asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
 819         msleep(150);
 820
 821         /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
 822         if (dev->driver_info->flags & FLAG_FRAMING_AX) {
 823                 /* hard_mtu  is still the default - the device does not support
 824                    jumbo eth frames */
 825                 dev->rx_urb_size = 2048;
 826         }
 827
 828         dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
 829         if (!dev->driver_priv)
 830                         return -ENOMEM;
 831
 832         return 0;
 833 }
 834
 835 static const struct driver_info ax8817x_info = {
 836         .description = "ASIX AX8817x USB 2.0 Ethernet",
 837         .bind = ax88172_bind,
 838         .status = asix_status,
 839         .link_reset = ax88172_link_reset,
 840         .reset = ax88172_link_reset,
 841         .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 842         .data = 0x00130103,
 843 };
 844
 845 static const struct driver_info dlink_dub_e100_info = {
 846         .description = "DLink DUB-E100 USB Ethernet",
 847         .bind = ax88172_bind,
 848         .status = asix_status,
 849         .link_reset = ax88172_link_reset,
 850         .reset = ax88172_link_reset,
 851         .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 852         .data = 0x009f9d9f,
 853 };
 854
 855 static const struct driver_info netgear_fa120_info = {
 856         .description = "Netgear FA-120 USB Ethernet",
 857         .bind = ax88172_bind,
 858         .status = asix_status,
 859         .link_reset = ax88172_link_reset,
 860         .reset = ax88172_link_reset,
 861         .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 862         .data = 0x00130103,
 863 };
 864
 865 static const struct driver_info hawking_uf200_info = {
 866         .description = "Hawking UF200 USB Ethernet",
 867         .bind = ax88172_bind,
 868         .status = asix_status,
 869         .link_reset = ax88172_link_reset,
 870         .reset = ax88172_link_reset,
 871         .flags =  FLAG_ETHER | FLAG_LINK_INTR,
 872         .data = 0x001f1d1f,
 873 };
 874
 875 static const struct driver_info ax88772_info = {
 876         .description = "ASIX AX88772 USB 2.0 Ethernet",
 877         .bind = ax88772_bind,
 878         .unbind = ax88772_unbind,
 879         .status = asix_status,
 880         .link_reset = ax88772_link_reset,
 881         .reset = ax88772_link_reset,
 882         .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET,
 883         .rx_fixup = asix_rx_fixup_common,
 884         .tx_fixup = asix_tx_fixup,
 885 };
 886
 887 static const struct driver_info ax88772b_info = {
 888         .description = "ASIX AX88772B USB 2.0 Ethernet",
 889         .bind = ax88772_bind,
 890         .unbind = ax88772_unbind,
 891         .status = asix_status,
 892         .link_reset = ax88772_link_reset,
 893         .reset = ax88772_reset,
 894         .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 895                  FLAG_MULTI_PACKET,
 896         .rx_fixup = asix_rx_fixup_common,
 897         .tx_fixup = asix_tx_fixup,
 898         .data = FLAG_EEPROM_MAC,
 899 };
 900
 901 static const struct driver_info ax88178_info = {
 902         .description = "ASIX AX88178 USB 2.0 Ethernet",
 903         .bind = ax88178_bind,
 904         .unbind = ax88772_unbind,
 905         .status = asix_status,
 906         .link_reset = ax88178_link_reset,
 907         .reset = ax88178_reset,
 908         .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 909                  FLAG_MULTI_PACKET,
 910         .rx_fixup = asix_rx_fixup_common,
 911         .tx_fixup = asix_tx_fixup,
 912 };
 913
 914 /*
 915  * USBLINK 20F9 "USB 2.0 LAN" USB ethernet adapter, typically found in
 916  * no-name packaging.
 917  * USB device strings are:
 918  *   1: Manufacturer: USBLINK
 919  *   2: Product: HG20F9 USB2.0
 920  *   3: Serial: 000003
 921  * Appears to be compatible with Asix 88772B.
 922  */
 923 static const struct driver_info hg20f9_info = {
 924         .description = "HG20F9 USB 2.0 Ethernet",
 925         .bind = ax88772_bind,
 926         .unbind = ax88772_unbind,
 927         .status = asix_status,
 928         .link_reset = ax88772_link_reset,
 929         .reset = ax88772_reset,
 930         .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 931                  FLAG_MULTI_PACKET,
 932         .rx_fixup = asix_rx_fixup_common,
 933         .tx_fixup = asix_tx_fixup,
 934         .data = FLAG_EEPROM_MAC,
 935 };
 936
 937 static const struct usb_device_id       products [] = {
 938 {
 939         // Linksys USB200M
 940         USB_DEVICE (0x077b, 0x2226),
 941         .driver_info =  (unsigned long) &ax8817x_info,
 942 }, {
 943         // Netgear FA120
 944         USB_DEVICE (0x0846, 0x1040),
 945         .driver_info =  (unsigned long) &netgear_fa120_info,
 946 }, {
 947         // DLink DUB-E100
 948         USB_DEVICE (0x2001, 0x1a00),
 949         .driver_info =  (unsigned long) &dlink_dub_e100_info,
 950 }, {
 951         // Intellinet, ST Lab USB Ethernet
 952         USB_DEVICE (0x0b95, 0x1720),
 953         .driver_info =  (unsigned long) &ax8817x_info,
 954 }, {
 955         // Hawking UF200, TrendNet TU2-ET100
 956         USB_DEVICE (0x07b8, 0x420a),
 957         .driver_info =  (unsigned long) &hawking_uf200_info,
 958 }, {
 959         // Billionton Systems, USB2AR
 960         USB_DEVICE (0x08dd, 0x90ff),
 961         .driver_info =  (unsigned long) &ax8817x_info,
 962 }, {
 963         // ATEN UC210T
 964         USB_DEVICE (0x0557, 0x2009),
 965         .driver_info =  (unsigned long) &ax8817x_info,
 966 }, {
 967         // Buffalo LUA-U2-KTX
 968         USB_DEVICE (0x0411, 0x003d),
 969         .driver_info =  (unsigned long) &ax8817x_info,
 970 }, {
 971         // Buffalo LUA-U2-GT 10/100/1000
 972         USB_DEVICE (0x0411, 0x006e),
 973         .driver_info =  (unsigned long) &ax88178_info,
 974 }, {
 975         // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
 976         USB_DEVICE (0x6189, 0x182d),
 977         .driver_info =  (unsigned long) &ax8817x_info,
 978 }, {
 979         // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
 980         USB_DEVICE (0x0df6, 0x0056),
 981         .driver_info =  (unsigned long) &ax88178_info,
 982 }, {
 983         // corega FEther USB2-TX
 984         USB_DEVICE (0x07aa, 0x0017),
 985         .driver_info =  (unsigned long) &ax8817x_info,
 986 }, {
 987         // Surecom EP-1427X-2
 988         USB_DEVICE (0x1189, 0x0893),
 989         .driver_info = (unsigned long) &ax8817x_info,
 990 }, {
 991         // goodway corp usb gwusb2e
 992         USB_DEVICE (0x1631, 0x6200),
 993         .driver_info = (unsigned long) &ax8817x_info,
 994 }, {
 995         // JVC MP-PRX1 Port Replicator
 996         USB_DEVICE (0x04f1, 0x3008),
 997         .driver_info = (unsigned long) &ax8817x_info,
 998 }, {
 999         // Lenovo U2L100P 10/100
1000         USB_DEVICE (0x17ef, 0x7203),
1001         .driver_info = (unsigned long) &ax88772_info,
1002 }, {
1003         // ASIX AX88772B 10/100
1004         USB_DEVICE (0x0b95, 0x772b),
1005         .driver_info = (unsigned long) &ax88772b_info,
1006 }, {
1007         // ASIX AX88772 10/100
1008         USB_DEVICE (0x0b95, 0x7720),
1009         .driver_info = (unsigned long) &ax88772_info,
1010 }, {
1011         // ASIX AX88178 10/100/1000
1012         USB_DEVICE (0x0b95, 0x1780),
1013         .driver_info = (unsigned long) &ax88178_info,
1014 }, {
1015         // Logitec LAN-GTJ/U2A
1016         USB_DEVICE (0x0789, 0x0160),
1017         .driver_info = (unsigned long) &ax88178_info,
1018 }, {
1019         // Linksys USB200M Rev 2
1020         USB_DEVICE (0x13b1, 0x0018),
1021         .driver_info = (unsigned long) &ax88772_info,
1022 }, {
1023         // 0Q0 cable ethernet
1024         USB_DEVICE (0x1557, 0x7720),
1025         .driver_info = (unsigned long) &ax88772_info,
1026 }, {
1027         // DLink DUB-E100 H/W Ver B1
1028         USB_DEVICE (0x07d1, 0x3c05),
1029         .driver_info = (unsigned long) &ax88772_info,
1030 }, {
1031         // DLink DUB-E100 H/W Ver B1 Alternate
1032         USB_DEVICE (0x2001, 0x3c05),
1033         .driver_info = (unsigned long) &ax88772_info,
1034 }, {
1035        // DLink DUB-E100 H/W Ver C1
1036        USB_DEVICE (0x2001, 0x1a02),
1037        .driver_info = (unsigned long) &ax88772_info,
1038 }, {
1039         // Linksys USB1000
1040         USB_DEVICE (0x1737, 0x0039),
1041         .driver_info = (unsigned long) &ax88178_info,
1042 }, {
1043         // IO-DATA ETG-US2
1044         USB_DEVICE (0x04bb, 0x0930),
1045         .driver_info = (unsigned long) &ax88178_info,
1046 }, {
1047         // Belkin F5D5055
1048         USB_DEVICE(0x050d, 0x5055),
1049         .driver_info = (unsigned long) &ax88178_info,
1050 }, {
1051         // Apple USB Ethernet Adapter
1052         USB_DEVICE(0x05ac, 0x1402),
1053         .driver_info = (unsigned long) &ax88772_info,
1054 }, {
1055         // Cables-to-Go USB Ethernet Adapter
1056         USB_DEVICE(0x0b95, 0x772a),
1057         .driver_info = (unsigned long) &ax88772_info,
1058 }, {
1059         // ABOCOM for pci
1060         USB_DEVICE(0x14ea, 0xab11),
1061         .driver_info = (unsigned long) &ax88178_info,
1062 }, {
1063         // ASIX 88772a
1064         USB_DEVICE(0x0db0, 0xa877),
1065         .driver_info = (unsigned long) &ax88772_info,
1066 }, {
1067         // Asus USB Ethernet Adapter
1068         USB_DEVICE (0x0b95, 0x7e2b),
1069         .driver_info = (unsigned long) &ax88772_info,
1070 }, {
1071         /* ASIX 88172a demo board */
1072         USB_DEVICE(0x0b95, 0x172a),
1073         .driver_info = (unsigned long) &ax88172a_info,
1074 }, {
1075         /*
1076          * USBLINK HG20F9 "USB 2.0 LAN"
1077          * Appears to have gazumped Linksys's manufacturer ID but
1078          * doesn't (yet) conflict with any known Linksys product.
1079          */
1080         USB_DEVICE(0x066b, 0x20f9),
1081         .driver_info = (unsigned long) &hg20f9_info,
1082 },
1083         { },            // END
1084 };
1085 MODULE_DEVICE_TABLE(usb, products);
1086
1087 static struct usb_driver asix_driver = {
1088         .name =         DRIVER_NAME,
1089         .id_table =     products,
1090         .probe =        usbnet_probe,
1091         .suspend =      usbnet_suspend,
1092         .resume =       usbnet_resume,
1093         .disconnect =   usbnet_disconnect,
1094         .supports_autosuspend = 1,
1095         .disable_hub_initiated_lpm = 1,
1096 };
1097
1098 module_usb_driver(asix_driver);
1099
1100 MODULE_AUTHOR("David Hollis");
1101 MODULE_VERSION(DRIVER_VERSION);
1102 MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
1103 MODULE_LICENSE("GPL");
1104