1 /* 2 * MOSCHIP MCS7830 based (7730/7830/7832) USB 2.0 Ethernet Devices 3 * 4 * based on usbnet.c, asix.c and the vendor provided mcs7830 driver 5 * 6 * Copyright (C) 2010 Andreas Mohr <andi@lisas.de> 7 * Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de> 8 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> 9 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> 10 * Copyright (c) 2002-2003 TiVo Inc. 11 * 12 * Definitions gathered from MOSCHIP, Data Sheet_7830DA.pdf (thanks!). 13 * 14 * 2010-12-19: add 7832 USB PID ("functionality same as MCS7830"), 15 * per active notification by manufacturer 16 * 17 * TODO: 18 * - support HIF_REG_CONFIG_SLEEPMODE/HIF_REG_CONFIG_TXENABLE (via autopm?) 19 * - implement ethtool_ops get_pauseparam/set_pauseparam 20 * via HIF_REG_PAUSE_THRESHOLD (>= revision C only!) 21 * - implement get_eeprom/[set_eeprom] 22 * - switch PHY on/off on ifup/ifdown (perhaps in usbnet.c, via MII) 23 * - mcs7830_get_regs() handling is weird: for rev 2 we return 32 regs, 24 * can access only ~ 24, remaining user buffer is uninitialized garbage 25 * - anything else? 26 * 27 * 28 * This program is free software; you can redistribute it and/or modify 29 * it under the terms of the GNU General Public License as published by 30 * the Free Software Foundation; either version 2 of the License, or 31 * (at your option) any later version. 32 * 33 * This program is distributed in the hope that it will be useful, 34 * but WITHOUT ANY WARRANTY; without even the implied warranty of 35 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 36 * GNU General Public License for more details. 37 * 38 * You should have received a copy of the GNU General Public License 39 * along with this program; if not, see <http://www.gnu.org/licenses/>. 40 */ 41 42 #include <linux/crc32.h> 43 #include <linux/etherdevice.h> 44 #include <linux/ethtool.h> 45 #include <linux/init.h> 46 #include <linux/mii.h> 47 #include <linux/module.h> 48 #include <linux/netdevice.h> 49 #include <linux/slab.h> 50 #include <linux/usb.h> 51 #include <linux/usb/usbnet.h> 52 53 /* requests */ 54 #define MCS7830_RD_BMREQ (USB_DIR_IN | USB_TYPE_VENDOR | \ 55 USB_RECIP_DEVICE) 56 #define MCS7830_WR_BMREQ (USB_DIR_OUT | USB_TYPE_VENDOR | \ 57 USB_RECIP_DEVICE) 58 #define MCS7830_RD_BREQ 0x0E 59 #define MCS7830_WR_BREQ 0x0D 60 61 #define MCS7830_CTRL_TIMEOUT 1000 62 #define MCS7830_MAX_MCAST 64 63 64 #define MCS7830_VENDOR_ID 0x9710 65 #define MCS7832_PRODUCT_ID 0x7832 66 #define MCS7830_PRODUCT_ID 0x7830 67 #define MCS7730_PRODUCT_ID 0x7730 68 69 #define SITECOM_VENDOR_ID 0x0DF6 70 #define LN_030_PRODUCT_ID 0x0021 71 72 #define MCS7830_MII_ADVERTISE (ADVERTISE_PAUSE_CAP | ADVERTISE_100FULL | \ 73 ADVERTISE_100HALF | ADVERTISE_10FULL | \ 74 ADVERTISE_10HALF | ADVERTISE_CSMA) 75 76 /* HIF_REG_XX corresponding index value */ 77 enum { 78 HIF_REG_MULTICAST_HASH = 0x00, 79 HIF_REG_PACKET_GAP1 = 0x08, 80 HIF_REG_PACKET_GAP2 = 0x09, 81 HIF_REG_PHY_DATA = 0x0a, 82 HIF_REG_PHY_CMD1 = 0x0c, 83 HIF_REG_PHY_CMD1_READ = 0x40, 84 HIF_REG_PHY_CMD1_WRITE = 0x20, 85 HIF_REG_PHY_CMD1_PHYADDR = 0x01, 86 HIF_REG_PHY_CMD2 = 0x0d, 87 HIF_REG_PHY_CMD2_PEND_FLAG_BIT = 0x80, 88 HIF_REG_PHY_CMD2_READY_FLAG_BIT = 0x40, 89 HIF_REG_CONFIG = 0x0e, 90 /* hmm, spec sez: "R/W", "Except bit 3" (likely TXENABLE). */ 91 HIF_REG_CONFIG_CFG = 0x80, 92 HIF_REG_CONFIG_SPEED100 = 0x40, 93 HIF_REG_CONFIG_FULLDUPLEX_ENABLE = 0x20, 94 HIF_REG_CONFIG_RXENABLE = 0x10, 95 HIF_REG_CONFIG_TXENABLE = 0x08, 96 HIF_REG_CONFIG_SLEEPMODE = 0x04, 97 HIF_REG_CONFIG_ALLMULTICAST = 0x02, 98 HIF_REG_CONFIG_PROMISCUOUS = 0x01, 99 HIF_REG_ETHERNET_ADDR = 0x0f, 100 HIF_REG_FRAME_DROP_COUNTER = 0x15, /* 0..ff; reset: 0 */ 101 HIF_REG_PAUSE_THRESHOLD = 0x16, 102 HIF_REG_PAUSE_THRESHOLD_DEFAULT = 0, 103 }; 104 105 /* Trailing status byte in Ethernet Rx frame */ 106 enum { 107 MCS7830_RX_SHORT_FRAME = 0x01, /* < 64 bytes */ 108 MCS7830_RX_LENGTH_ERROR = 0x02, /* framelen != Ethernet length field */ 109 MCS7830_RX_ALIGNMENT_ERROR = 0x04, /* non-even number of nibbles */ 110 MCS7830_RX_CRC_ERROR = 0x08, 111 MCS7830_RX_LARGE_FRAME = 0x10, /* > 1518 bytes */ 112 MCS7830_RX_FRAME_CORRECT = 0x20, /* frame is correct */ 113 /* [7:6] reserved */ 114 }; 115 116 struct mcs7830_data { 117 u8 multi_filter[8]; 118 u8 config; 119 u8 link_counter; 120 }; 121 122 static const char driver_name[] = "MOSCHIP usb-ethernet driver"; 123 124 static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data) 125 { 126 return usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ, 127 0x0000, index, data, size); 128 } 129 130 static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data) 131 { 132 return usbnet_write_cmd(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, 133 0x0000, index, data, size); 134 } 135 136 static void mcs7830_set_reg_async(struct usbnet *dev, u16 index, u16 size, void *data) 137 { 138 usbnet_write_cmd_async(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, 139 0x0000, index, data, size); 140 } 141 142 static int mcs7830_hif_get_mac_address(struct usbnet *dev, unsigned char *addr) 143 { 144 int ret = mcs7830_get_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); 145 if (ret < 0) 146 return ret; 147 return 0; 148 } 149 150 static int mcs7830_hif_set_mac_address(struct usbnet *dev, unsigned char *addr) 151 { 152 int ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); 153 154 if (ret < 0) 155 return ret; 156 return 0; 157 } 158 159 static int mcs7830_set_mac_address(struct net_device *netdev, void *p) 160 { 161 int ret; 162 struct usbnet *dev = netdev_priv(netdev); 163 struct sockaddr *addr = p; 164 165 if (netif_running(netdev)) 166 return -EBUSY; 167 168 if (!is_valid_ether_addr(addr->sa_data)) 169 return -EADDRNOTAVAIL; 170 171 ret = mcs7830_hif_set_mac_address(dev, addr->sa_data); 172 173 if (ret < 0) 174 return ret; 175 176 /* it worked --> adopt it on netdev side */ 177 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 178 179 return 0; 180 } 181 182 static int mcs7830_read_phy(struct usbnet *dev, u8 index) 183 { 184 int ret; 185 int i; 186 __le16 val; 187 188 u8 cmd[2] = { 189 HIF_REG_PHY_CMD1_READ | HIF_REG_PHY_CMD1_PHYADDR, 190 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | index, 191 }; 192 193 mutex_lock(&dev->phy_mutex); 194 /* write the MII command */ 195 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 196 if (ret < 0) 197 goto out; 198 199 /* wait for the data to become valid, should be within < 1ms */ 200 for (i = 0; i < 10; i++) { 201 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 202 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 203 break; 204 ret = -EIO; 205 msleep(1); 206 } 207 if (ret < 0) 208 goto out; 209 210 /* read actual register contents */ 211 ret = mcs7830_get_reg(dev, HIF_REG_PHY_DATA, 2, &val); 212 if (ret < 0) 213 goto out; 214 ret = le16_to_cpu(val); 215 dev_dbg(&dev->udev->dev, "read PHY reg %02x: %04x (%d tries)\n", 216 index, val, i); 217 out: 218 mutex_unlock(&dev->phy_mutex); 219 return ret; 220 } 221 222 static int mcs7830_write_phy(struct usbnet *dev, u8 index, u16 val) 223 { 224 int ret; 225 int i; 226 __le16 le_val; 227 228 u8 cmd[2] = { 229 HIF_REG_PHY_CMD1_WRITE | HIF_REG_PHY_CMD1_PHYADDR, 230 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | (index & 0x1F), 231 }; 232 233 mutex_lock(&dev->phy_mutex); 234 235 /* write the new register contents */ 236 le_val = cpu_to_le16(val); 237 ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val); 238 if (ret < 0) 239 goto out; 240 241 /* write the MII command */ 242 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 243 if (ret < 0) 244 goto out; 245 246 /* wait for the command to be accepted by the PHY */ 247 for (i = 0; i < 10; i++) { 248 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 249 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 250 break; 251 ret = -EIO; 252 msleep(1); 253 } 254 if (ret < 0) 255 goto out; 256 257 ret = 0; 258 dev_dbg(&dev->udev->dev, "write PHY reg %02x: %04x (%d tries)\n", 259 index, val, i); 260 out: 261 mutex_unlock(&dev->phy_mutex); 262 return ret; 263 } 264 265 /* 266 * This algorithm comes from the original mcs7830 version 1.4 driver, 267 * not sure if it is needed. 268 */ 269 static int mcs7830_set_autoneg(struct usbnet *dev, int ptrUserPhyMode) 270 { 271 int ret; 272 /* Enable all media types */ 273 ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE); 274 275 /* First reset BMCR */ 276 if (!ret) 277 ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000); 278 /* Enable Auto Neg */ 279 if (!ret) 280 ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE); 281 /* Restart Auto Neg (Keep the Enable Auto Neg Bit Set) */ 282 if (!ret) 283 ret = mcs7830_write_phy(dev, MII_BMCR, 284 BMCR_ANENABLE | BMCR_ANRESTART ); 285 return ret; 286 } 287 288 289 /* 290 * if we can read register 22, the chip revision is C or higher 291 */ 292 static int mcs7830_get_rev(struct usbnet *dev) 293 { 294 u8 dummy[2]; 295 int ret; 296 ret = mcs7830_get_reg(dev, HIF_REG_FRAME_DROP_COUNTER, 2, dummy); 297 if (ret > 0) 298 return 2; /* Rev C or later */ 299 return 1; /* earlier revision */ 300 } 301 302 /* 303 * On rev. C we need to set the pause threshold 304 */ 305 static void mcs7830_rev_C_fixup(struct usbnet *dev) 306 { 307 u8 pause_threshold = HIF_REG_PAUSE_THRESHOLD_DEFAULT; 308 int retry; 309 310 for (retry = 0; retry < 2; retry++) { 311 if (mcs7830_get_rev(dev) == 2) { 312 dev_info(&dev->udev->dev, "applying rev.C fixup\n"); 313 mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD, 314 1, &pause_threshold); 315 } 316 msleep(1); 317 } 318 } 319 320 static int mcs7830_mdio_read(struct net_device *netdev, int phy_id, 321 int location) 322 { 323 struct usbnet *dev = netdev_priv(netdev); 324 return mcs7830_read_phy(dev, location); 325 } 326 327 static void mcs7830_mdio_write(struct net_device *netdev, int phy_id, 328 int location, int val) 329 { 330 struct usbnet *dev = netdev_priv(netdev); 331 mcs7830_write_phy(dev, location, val); 332 } 333 334 static int mcs7830_ioctl(struct net_device *net, struct ifreq *rq, int cmd) 335 { 336 struct usbnet *dev = netdev_priv(net); 337 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); 338 } 339 340 static inline struct mcs7830_data *mcs7830_get_data(struct usbnet *dev) 341 { 342 return (struct mcs7830_data *)&dev->data; 343 } 344 345 static void mcs7830_hif_update_multicast_hash(struct usbnet *dev) 346 { 347 struct mcs7830_data *data = mcs7830_get_data(dev); 348 mcs7830_set_reg_async(dev, HIF_REG_MULTICAST_HASH, 349 sizeof data->multi_filter, 350 data->multi_filter); 351 } 352 353 static void mcs7830_hif_update_config(struct usbnet *dev) 354 { 355 /* implementation specific to data->config 356 (argument needs to be heap-based anyway - USB DMA!) */ 357 struct mcs7830_data *data = mcs7830_get_data(dev); 358 mcs7830_set_reg_async(dev, HIF_REG_CONFIG, 1, &data->config); 359 } 360 361 static void mcs7830_data_set_multicast(struct net_device *net) 362 { 363 struct usbnet *dev = netdev_priv(net); 364 struct mcs7830_data *data = mcs7830_get_data(dev); 365 366 memset(data->multi_filter, 0, sizeof data->multi_filter); 367 368 data->config = HIF_REG_CONFIG_TXENABLE; 369 370 /* this should not be needed, but it doesn't work otherwise */ 371 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 372 373 if (net->flags & IFF_PROMISC) { 374 data->config |= HIF_REG_CONFIG_PROMISCUOUS; 375 } else if (net->flags & IFF_ALLMULTI || 376 netdev_mc_count(net) > MCS7830_MAX_MCAST) { 377 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 378 } else if (netdev_mc_empty(net)) { 379 /* just broadcast and directed */ 380 } else { 381 /* We use the 20 byte dev->data 382 * for our 8 byte filter buffer 383 * to avoid allocating memory that 384 * is tricky to free later */ 385 struct netdev_hw_addr *ha; 386 u32 crc_bits; 387 388 /* Build the multicast hash filter. */ 389 netdev_for_each_mc_addr(ha, net) { 390 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; 391 data->multi_filter[crc_bits >> 3] |= 1 << (crc_bits & 7); 392 } 393 } 394 } 395 396 static int mcs7830_apply_base_config(struct usbnet *dev) 397 { 398 int ret; 399 400 /* re-configure known MAC (suspend case etc.) */ 401 ret = mcs7830_hif_set_mac_address(dev, dev->net->dev_addr); 402 if (ret) { 403 dev_info(&dev->udev->dev, "Cannot set MAC address\n"); 404 goto out; 405 } 406 407 /* Set up PHY */ 408 ret = mcs7830_set_autoneg(dev, 0); 409 if (ret) { 410 dev_info(&dev->udev->dev, "Cannot set autoneg\n"); 411 goto out; 412 } 413 414 mcs7830_hif_update_multicast_hash(dev); 415 mcs7830_hif_update_config(dev); 416 417 mcs7830_rev_C_fixup(dev); 418 ret = 0; 419 out: 420 return ret; 421 } 422 423 /* credits go to asix_set_multicast */ 424 static void mcs7830_set_multicast(struct net_device *net) 425 { 426 struct usbnet *dev = netdev_priv(net); 427 428 mcs7830_data_set_multicast(net); 429 430 mcs7830_hif_update_multicast_hash(dev); 431 mcs7830_hif_update_config(dev); 432 } 433 434 static int mcs7830_get_regs_len(struct net_device *net) 435 { 436 struct usbnet *dev = netdev_priv(net); 437 438 switch (mcs7830_get_rev(dev)) { 439 case 1: 440 return 21; 441 case 2: 442 return 32; 443 } 444 return 0; 445 } 446 447 static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo) 448 { 449 usbnet_get_drvinfo(net, drvinfo); 450 drvinfo->regdump_len = mcs7830_get_regs_len(net); 451 } 452 453 static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data) 454 { 455 struct usbnet *dev = netdev_priv(net); 456 457 regs->version = mcs7830_get_rev(dev); 458 mcs7830_get_reg(dev, 0, regs->len, data); 459 } 460 461 static const struct ethtool_ops mcs7830_ethtool_ops = { 462 .get_drvinfo = mcs7830_get_drvinfo, 463 .get_regs_len = mcs7830_get_regs_len, 464 .get_regs = mcs7830_get_regs, 465 466 /* common usbnet calls */ 467 .get_link = usbnet_get_link, 468 .get_msglevel = usbnet_get_msglevel, 469 .set_msglevel = usbnet_set_msglevel, 470 .get_settings = usbnet_get_settings, 471 .set_settings = usbnet_set_settings, 472 .nway_reset = usbnet_nway_reset, 473 }; 474 475 static const struct net_device_ops mcs7830_netdev_ops = { 476 .ndo_open = usbnet_open, 477 .ndo_stop = usbnet_stop, 478 .ndo_start_xmit = usbnet_start_xmit, 479 .ndo_tx_timeout = usbnet_tx_timeout, 480 .ndo_change_mtu = usbnet_change_mtu, 481 .ndo_validate_addr = eth_validate_addr, 482 .ndo_do_ioctl = mcs7830_ioctl, 483 .ndo_set_rx_mode = mcs7830_set_multicast, 484 .ndo_set_mac_address = mcs7830_set_mac_address, 485 }; 486 487 static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev) 488 { 489 struct net_device *net = dev->net; 490 int ret; 491 int retry; 492 493 /* Initial startup: Gather MAC address setting from EEPROM */ 494 ret = -EINVAL; 495 for (retry = 0; retry < 5 && ret; retry++) 496 ret = mcs7830_hif_get_mac_address(dev, net->dev_addr); 497 if (ret) { 498 dev_warn(&dev->udev->dev, "Cannot read MAC address\n"); 499 goto out; 500 } 501 502 mcs7830_data_set_multicast(net); 503 504 ret = mcs7830_apply_base_config(dev); 505 if (ret) 506 goto out; 507 508 net->ethtool_ops = &mcs7830_ethtool_ops; 509 net->netdev_ops = &mcs7830_netdev_ops; 510 511 /* reserve space for the status byte on rx */ 512 dev->rx_urb_size = ETH_FRAME_LEN + 1; 513 514 dev->mii.mdio_read = mcs7830_mdio_read; 515 dev->mii.mdio_write = mcs7830_mdio_write; 516 dev->mii.dev = net; 517 dev->mii.phy_id_mask = 0x3f; 518 dev->mii.reg_num_mask = 0x1f; 519 dev->mii.phy_id = *((u8 *) net->dev_addr + 1); 520 521 ret = usbnet_get_endpoints(dev, udev); 522 out: 523 return ret; 524 } 525 526 /* The chip always appends a status byte that we need to strip */ 527 static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 528 { 529 u8 status; 530 531 if (skb->len == 0) { 532 dev_err(&dev->udev->dev, "unexpected empty rx frame\n"); 533 return 0; 534 } 535 536 skb_trim(skb, skb->len - 1); 537 status = skb->data[skb->len]; 538 539 if (status != MCS7830_RX_FRAME_CORRECT) { 540 dev_dbg(&dev->udev->dev, "rx fixup status %x\n", status); 541 542 /* hmm, perhaps usbnet.c already sees a globally visible 543 frame error and increments rx_errors on its own already? */ 544 dev->net->stats.rx_errors++; 545 546 if (status & (MCS7830_RX_SHORT_FRAME 547 |MCS7830_RX_LENGTH_ERROR 548 |MCS7830_RX_LARGE_FRAME)) 549 dev->net->stats.rx_length_errors++; 550 if (status & MCS7830_RX_ALIGNMENT_ERROR) 551 dev->net->stats.rx_frame_errors++; 552 if (status & MCS7830_RX_CRC_ERROR) 553 dev->net->stats.rx_crc_errors++; 554 } 555 556 return skb->len > 0; 557 } 558 559 static void mcs7830_status(struct usbnet *dev, struct urb *urb) 560 { 561 u8 *buf = urb->transfer_buffer; 562 bool link, link_changed; 563 struct mcs7830_data *data = mcs7830_get_data(dev); 564 565 if (urb->actual_length < 16) 566 return; 567 568 link = !(buf[1] & 0x20); 569 link_changed = netif_carrier_ok(dev->net) != link; 570 if (link_changed) { 571 data->link_counter++; 572 /* 573 track link state 20 times to guard against erroneous 574 link state changes reported sometimes by the chip 575 */ 576 if (data->link_counter > 20) { 577 data->link_counter = 0; 578 usbnet_link_change(dev, link, 0); 579 netdev_dbg(dev->net, "Link Status is: %d\n", link); 580 } 581 } else 582 data->link_counter = 0; 583 } 584 585 static const struct driver_info moschip_info = { 586 .description = "MOSCHIP 7830/7832/7730 usb-NET adapter", 587 .bind = mcs7830_bind, 588 .rx_fixup = mcs7830_rx_fixup, 589 .flags = FLAG_ETHER | FLAG_LINK_INTR, 590 .status = mcs7830_status, 591 .in = 1, 592 .out = 2, 593 }; 594 595 static const struct driver_info sitecom_info = { 596 .description = "Sitecom LN-30 usb-NET adapter", 597 .bind = mcs7830_bind, 598 .rx_fixup = mcs7830_rx_fixup, 599 .flags = FLAG_ETHER | FLAG_LINK_INTR, 600 .status = mcs7830_status, 601 .in = 1, 602 .out = 2, 603 }; 604 605 static const struct usb_device_id products[] = { 606 { 607 USB_DEVICE(MCS7830_VENDOR_ID, MCS7832_PRODUCT_ID), 608 .driver_info = (unsigned long) &moschip_info, 609 }, 610 { 611 USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID), 612 .driver_info = (unsigned long) &moschip_info, 613 }, 614 { 615 USB_DEVICE(MCS7830_VENDOR_ID, MCS7730_PRODUCT_ID), 616 .driver_info = (unsigned long) &moschip_info, 617 }, 618 { 619 USB_DEVICE(SITECOM_VENDOR_ID, LN_030_PRODUCT_ID), 620 .driver_info = (unsigned long) &sitecom_info, 621 }, 622 {}, 623 }; 624 MODULE_DEVICE_TABLE(usb, products); 625 626 static int mcs7830_reset_resume (struct usb_interface *intf) 627 { 628 /* YES, this function is successful enough that ethtool -d 629 does show same output pre-/post-suspend */ 630 631 struct usbnet *dev = usb_get_intfdata(intf); 632 633 mcs7830_apply_base_config(dev); 634 635 usbnet_resume(intf); 636 637 return 0; 638 } 639 640 static struct usb_driver mcs7830_driver = { 641 .name = driver_name, 642 .id_table = products, 643 .probe = usbnet_probe, 644 .disconnect = usbnet_disconnect, 645 .suspend = usbnet_suspend, 646 .resume = usbnet_resume, 647 .reset_resume = mcs7830_reset_resume, 648 .disable_hub_initiated_lpm = 1, 649 }; 650 651 module_usb_driver(mcs7830_driver); 652 653 MODULE_DESCRIPTION("USB to network adapter MCS7830)"); 654 MODULE_LICENSE("GPL"); 655