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         kfree(dev->driver_priv);
 491 }
 492
 493 static 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
 508 static 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
 540 static 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
 561 static 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
 587 static 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
 676 static 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
 715 static 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
 750 static 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
 773 static 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
 785 static 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
 834 static 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
 844 static 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
 854 static 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
 864 static 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
 874 static 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
 886 static 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
 900 static 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  */
 922 static 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
 936 static 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 };
1092 MODULE_DEVICE_TABLE(usb, products);
1093
1094 static 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
1105 module_usb_driver(asix_driver);
1106
1107 MODULE_AUTHOR("David Hollis");
1108 MODULE_VERSION(DRIVER_VERSION);
1109 MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
1110 MODULE_LICENSE("GPL");
1111