1 /* 2 * Copyright (c) 2011 The Chromium OS Authors. 3 * See file CREDITS for list of people who contributed to this 4 * project. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 19 * MA 02111-1307 USA 20 */ 21 22 #include <common.h> 23 #include <usb.h> 24 #include <linux/mii.h> 25 #include "usb_ether.h" 26 #include <malloc.h> 27 28 29 /* ASIX AX8817X based USB 2.0 Ethernet Devices */ 30 31 #define AX_CMD_SET_SW_MII 0x06 32 #define AX_CMD_READ_MII_REG 0x07 33 #define AX_CMD_WRITE_MII_REG 0x08 34 #define AX_CMD_SET_HW_MII 0x0a 35 #define AX_CMD_READ_EEPROM 0x0b 36 #define AX_CMD_READ_RX_CTL 0x0f 37 #define AX_CMD_WRITE_RX_CTL 0x10 38 #define AX_CMD_WRITE_IPG0 0x12 39 #define AX_CMD_READ_NODE_ID 0x13 40 #define AX_CMD_WRITE_NODE_ID 0x14 41 #define AX_CMD_READ_PHY_ID 0x19 42 #define AX_CMD_WRITE_MEDIUM_MODE 0x1b 43 #define AX_CMD_WRITE_GPIOS 0x1f 44 #define AX_CMD_SW_RESET 0x20 45 #define AX_CMD_SW_PHY_SELECT 0x22 46 47 #define AX_SWRESET_CLEAR 0x00 48 #define AX_SWRESET_PRTE 0x04 49 #define AX_SWRESET_PRL 0x08 50 #define AX_SWRESET_IPRL 0x20 51 #define AX_SWRESET_IPPD 0x40 52 53 #define AX88772_IPG0_DEFAULT 0x15 54 #define AX88772_IPG1_DEFAULT 0x0c 55 #define AX88772_IPG2_DEFAULT 0x12 56 57 /* AX88772 & AX88178 Medium Mode Register */ 58 #define AX_MEDIUM_PF 0x0080 59 #define AX_MEDIUM_JFE 0x0040 60 #define AX_MEDIUM_TFC 0x0020 61 #define AX_MEDIUM_RFC 0x0010 62 #define AX_MEDIUM_ENCK 0x0008 63 #define AX_MEDIUM_AC 0x0004 64 #define AX_MEDIUM_FD 0x0002 65 #define AX_MEDIUM_GM 0x0001 66 #define AX_MEDIUM_SM 0x1000 67 #define AX_MEDIUM_SBP 0x0800 68 #define AX_MEDIUM_PS 0x0200 69 #define AX_MEDIUM_RE 0x0100 70 71 #define AX88178_MEDIUM_DEFAULT \ 72 (AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \ 73 AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \ 74 AX_MEDIUM_RE) 75 76 #define AX88772_MEDIUM_DEFAULT \ 77 (AX_MEDIUM_FD | AX_MEDIUM_RFC | \ 78 AX_MEDIUM_TFC | AX_MEDIUM_PS | \ 79 AX_MEDIUM_AC | AX_MEDIUM_RE) 80 81 /* AX88772 & AX88178 RX_CTL values */ 82 #define AX_RX_CTL_SO 0x0080 83 #define AX_RX_CTL_AB 0x0008 84 85 #define AX_DEFAULT_RX_CTL \ 86 (AX_RX_CTL_SO | AX_RX_CTL_AB) 87 88 /* GPIO 2 toggles */ 89 #define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */ 90 #define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */ 91 #define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */ 92 93 /* local defines */ 94 #define ASIX_BASE_NAME "asx" 95 #define USB_CTRL_SET_TIMEOUT 5000 96 #define USB_CTRL_GET_TIMEOUT 5000 97 #define USB_BULK_SEND_TIMEOUT 5000 98 #define USB_BULK_RECV_TIMEOUT 5000 99 100 #define AX_RX_URB_SIZE 2048 101 #define PHY_CONNECT_TIMEOUT 5000 102 103 /* asix_flags defines */ 104 #define FLAG_NONE 0 105 #define FLAG_TYPE_AX88172 (1U << 0) 106 #define FLAG_TYPE_AX88772 (1U << 1) 107 #define FLAG_TYPE_AX88772B (1U << 2) 108 #define FLAG_EEPROM_MAC (1U << 3) /* initial mac address in eeprom */ 109 110 /* local vars */ 111 static int curr_eth_dev; /* index for name of next device detected */ 112 113 /* driver private */ 114 struct asix_private { 115 int flags; 116 }; 117 118 /* 119 * Asix infrastructure commands 120 */ 121 static int asix_write_cmd(struct ueth_data *dev, u8 cmd, u16 value, u16 index, 122 u16 size, void *data) 123 { 124 int len; 125 126 debug("asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x " 127 "size=%d\n", cmd, value, index, size); 128 129 len = usb_control_msg( 130 dev->pusb_dev, 131 usb_sndctrlpipe(dev->pusb_dev, 0), 132 cmd, 133 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 134 value, 135 index, 136 data, 137 size, 138 USB_CTRL_SET_TIMEOUT); 139 140 return len == size ? 0 : -1; 141 } 142 143 static int asix_read_cmd(struct ueth_data *dev, u8 cmd, u16 value, u16 index, 144 u16 size, void *data) 145 { 146 int len; 147 148 debug("asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n", 149 cmd, value, index, size); 150 151 len = usb_control_msg( 152 dev->pusb_dev, 153 usb_rcvctrlpipe(dev->pusb_dev, 0), 154 cmd, 155 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 156 value, 157 index, 158 data, 159 size, 160 USB_CTRL_GET_TIMEOUT); 161 return len == size ? 0 : -1; 162 } 163 164 static inline int asix_set_sw_mii(struct ueth_data *dev) 165 { 166 int ret; 167 168 ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); 169 if (ret < 0) 170 debug("Failed to enable software MII access\n"); 171 return ret; 172 } 173 174 static inline int asix_set_hw_mii(struct ueth_data *dev) 175 { 176 int ret; 177 178 ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); 179 if (ret < 0) 180 debug("Failed to enable hardware MII access\n"); 181 return ret; 182 } 183 184 static int asix_mdio_read(struct ueth_data *dev, int phy_id, int loc) 185 { 186 ALLOC_CACHE_ALIGN_BUFFER(__le16, res, 1); 187 188 asix_set_sw_mii(dev); 189 asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, res); 190 asix_set_hw_mii(dev); 191 192 debug("asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", 193 phy_id, loc, le16_to_cpu(*res)); 194 195 return le16_to_cpu(*res); 196 } 197 198 static void 199 asix_mdio_write(struct ueth_data *dev, int phy_id, int loc, int val) 200 { 201 ALLOC_CACHE_ALIGN_BUFFER(__le16, res, 1); 202 *res = cpu_to_le16(val); 203 204 debug("asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", 205 phy_id, loc, val); 206 asix_set_sw_mii(dev); 207 asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, res); 208 asix_set_hw_mii(dev); 209 } 210 211 /* 212 * Asix "high level" commands 213 */ 214 static int asix_sw_reset(struct ueth_data *dev, u8 flags) 215 { 216 int ret; 217 218 ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL); 219 if (ret < 0) 220 debug("Failed to send software reset: %02x\n", ret); 221 else 222 udelay(150 * 1000); 223 224 return ret; 225 } 226 227 static inline int asix_get_phy_addr(struct ueth_data *dev) 228 { 229 ALLOC_CACHE_ALIGN_BUFFER(u8, buf, 2); 230 231 int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf); 232 233 debug("asix_get_phy_addr()\n"); 234 235 if (ret < 0) { 236 debug("Error reading PHYID register: %02x\n", ret); 237 goto out; 238 } 239 debug("asix_get_phy_addr() returning 0x%02x%02x\n", buf[0], buf[1]); 240 ret = buf[1]; 241 242 out: 243 return ret; 244 } 245 246 static int asix_write_medium_mode(struct ueth_data *dev, u16 mode) 247 { 248 int ret; 249 250 debug("asix_write_medium_mode() - mode = 0x%04x\n", mode); 251 ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 252 0, 0, NULL); 253 if (ret < 0) { 254 debug("Failed to write Medium Mode mode to 0x%04x: %02x\n", 255 mode, ret); 256 } 257 return ret; 258 } 259 260 static u16 asix_read_rx_ctl(struct ueth_data *dev) 261 { 262 ALLOC_CACHE_ALIGN_BUFFER(__le16, v, 1); 263 264 int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, v); 265 266 if (ret < 0) 267 debug("Error reading RX_CTL register: %02x\n", ret); 268 else 269 ret = le16_to_cpu(*v); 270 return ret; 271 } 272 273 static int asix_write_rx_ctl(struct ueth_data *dev, u16 mode) 274 { 275 int ret; 276 277 debug("asix_write_rx_ctl() - mode = 0x%04x\n", mode); 278 ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); 279 if (ret < 0) { 280 debug("Failed to write RX_CTL mode to 0x%04x: %02x\n", 281 mode, ret); 282 } 283 return ret; 284 } 285 286 static int asix_write_gpio(struct ueth_data *dev, u16 value, int sleep) 287 { 288 int ret; 289 290 debug("asix_write_gpio() - value = 0x%04x\n", value); 291 ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL); 292 if (ret < 0) { 293 debug("Failed to write GPIO value 0x%04x: %02x\n", 294 value, ret); 295 } 296 if (sleep) 297 udelay(sleep * 1000); 298 299 return ret; 300 } 301 302 static int asix_write_hwaddr(struct eth_device *eth) 303 { 304 struct ueth_data *dev = (struct ueth_data *)eth->priv; 305 int ret; 306 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, ETH_ALEN); 307 308 memcpy(buf, eth->enetaddr, ETH_ALEN); 309 310 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, buf); 311 if (ret < 0) 312 debug("Failed to set MAC address: %02x\n", ret); 313 314 return ret; 315 } 316 317 /* 318 * mii commands 319 */ 320 321 /* 322 * mii_nway_restart - restart NWay (autonegotiation) for this interface 323 * 324 * Returns 0 on success, negative on error. 325 */ 326 static int mii_nway_restart(struct ueth_data *dev) 327 { 328 int bmcr; 329 int r = -1; 330 331 /* if autoneg is off, it's an error */ 332 bmcr = asix_mdio_read(dev, dev->phy_id, MII_BMCR); 333 334 if (bmcr & BMCR_ANENABLE) { 335 bmcr |= BMCR_ANRESTART; 336 asix_mdio_write(dev, dev->phy_id, MII_BMCR, bmcr); 337 r = 0; 338 } 339 340 return r; 341 } 342 343 static int asix_read_mac(struct eth_device *eth) 344 { 345 struct ueth_data *dev = (struct ueth_data *)eth->priv; 346 struct asix_private *priv = (struct asix_private *)dev->dev_priv; 347 int i; 348 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, ETH_ALEN); 349 350 if (priv->flags & FLAG_EEPROM_MAC) { 351 for (i = 0; i < (ETH_ALEN >> 1); i++) { 352 if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, 353 0x04 + i, 0, 2, buf) < 0) { 354 debug("Failed to read SROM address 04h.\n"); 355 return -1; 356 } 357 memcpy((eth->enetaddr + i * 2), buf, 2); 358 } 359 } else { 360 if (asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf) 361 < 0) { 362 debug("Failed to read MAC address.\n"); 363 return -1; 364 } 365 memcpy(eth->enetaddr, buf, ETH_ALEN); 366 } 367 368 return 0; 369 } 370 371 static int asix_basic_reset(struct ueth_data *dev) 372 { 373 int embd_phy; 374 u16 rx_ctl; 375 376 if (asix_write_gpio(dev, 377 AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5) < 0) 378 return -1; 379 380 /* 0x10 is the phy id of the embedded 10/100 ethernet phy */ 381 embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0); 382 if (asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 383 embd_phy, 0, 0, NULL) < 0) { 384 debug("Select PHY #1 failed\n"); 385 return -1; 386 } 387 388 if (asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL) < 0) 389 return -1; 390 391 if (asix_sw_reset(dev, AX_SWRESET_CLEAR) < 0) 392 return -1; 393 394 if (embd_phy) { 395 if (asix_sw_reset(dev, AX_SWRESET_IPRL) < 0) 396 return -1; 397 } else { 398 if (asix_sw_reset(dev, AX_SWRESET_PRTE) < 0) 399 return -1; 400 } 401 402 rx_ctl = asix_read_rx_ctl(dev); 403 debug("RX_CTL is 0x%04x after software reset\n", rx_ctl); 404 if (asix_write_rx_ctl(dev, 0x0000) < 0) 405 return -1; 406 407 rx_ctl = asix_read_rx_ctl(dev); 408 debug("RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl); 409 410 return 0; 411 } 412 413 /* 414 * Asix callbacks 415 */ 416 static int asix_init(struct eth_device *eth, bd_t *bd) 417 { 418 struct ueth_data *dev = (struct ueth_data *)eth->priv; 419 int timeout = 0; 420 #define TIMEOUT_RESOLUTION 50 /* ms */ 421 int link_detected; 422 423 debug("** %s()\n", __func__); 424 425 dev->phy_id = asix_get_phy_addr(dev); 426 if (dev->phy_id < 0) 427 debug("Failed to read phy id\n"); 428 429 if (asix_sw_reset(dev, AX_SWRESET_PRL) < 0) 430 goto out_err; 431 432 if (asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL) < 0) 433 goto out_err; 434 435 asix_mdio_write(dev, dev->phy_id, MII_BMCR, BMCR_RESET); 436 asix_mdio_write(dev, dev->phy_id, MII_ADVERTISE, 437 ADVERTISE_ALL | ADVERTISE_CSMA); 438 mii_nway_restart(dev); 439 440 if (asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT) < 0) 441 goto out_err; 442 443 if (asix_write_cmd(dev, AX_CMD_WRITE_IPG0, 444 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT, 445 AX88772_IPG2_DEFAULT, 0, NULL) < 0) { 446 debug("Write IPG,IPG1,IPG2 failed\n"); 447 goto out_err; 448 } 449 450 if (asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL) < 0) 451 goto out_err; 452 453 do { 454 link_detected = asix_mdio_read(dev, dev->phy_id, MII_BMSR) & 455 BMSR_LSTATUS; 456 if (!link_detected) { 457 if (timeout == 0) 458 printf("Waiting for Ethernet connection... "); 459 udelay(TIMEOUT_RESOLUTION * 1000); 460 timeout += TIMEOUT_RESOLUTION; 461 } 462 } while (!link_detected && timeout < PHY_CONNECT_TIMEOUT); 463 if (link_detected) { 464 if (timeout != 0) 465 printf("done.\n"); 466 } else { 467 printf("unable to connect.\n"); 468 goto out_err; 469 } 470 471 return 0; 472 out_err: 473 return -1; 474 } 475 476 static int asix_send(struct eth_device *eth, void *packet, int length) 477 { 478 struct ueth_data *dev = (struct ueth_data *)eth->priv; 479 int err; 480 u32 packet_len; 481 int actual_len; 482 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, msg, 483 PKTSIZE + sizeof(packet_len)); 484 485 debug("** %s(), len %d\n", __func__, length); 486 487 packet_len = (((length) ^ 0x0000ffff) << 16) + (length); 488 cpu_to_le32s(&packet_len); 489 490 memcpy(msg, &packet_len, sizeof(packet_len)); 491 memcpy(msg + sizeof(packet_len), (void *)packet, length); 492 if (length & 1) 493 length++; 494 495 err = usb_bulk_msg(dev->pusb_dev, 496 usb_sndbulkpipe(dev->pusb_dev, dev->ep_out), 497 (void *)msg, 498 length + sizeof(packet_len), 499 &actual_len, 500 USB_BULK_SEND_TIMEOUT); 501 debug("Tx: len = %u, actual = %u, err = %d\n", 502 length + sizeof(packet_len), actual_len, err); 503 504 return err; 505 } 506 507 static int asix_recv(struct eth_device *eth) 508 { 509 struct ueth_data *dev = (struct ueth_data *)eth->priv; 510 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, recv_buf, AX_RX_URB_SIZE); 511 unsigned char *buf_ptr; 512 int err; 513 int actual_len; 514 u32 packet_len; 515 516 debug("** %s()\n", __func__); 517 518 err = usb_bulk_msg(dev->pusb_dev, 519 usb_rcvbulkpipe(dev->pusb_dev, dev->ep_in), 520 (void *)recv_buf, 521 AX_RX_URB_SIZE, 522 &actual_len, 523 USB_BULK_RECV_TIMEOUT); 524 debug("Rx: len = %u, actual = %u, err = %d\n", AX_RX_URB_SIZE, 525 actual_len, err); 526 if (err != 0) { 527 debug("Rx: failed to receive\n"); 528 return -1; 529 } 530 if (actual_len > AX_RX_URB_SIZE) { 531 debug("Rx: received too many bytes %d\n", actual_len); 532 return -1; 533 } 534 535 buf_ptr = recv_buf; 536 while (actual_len > 0) { 537 /* 538 * 1st 4 bytes contain the length of the actual data as two 539 * complementary 16-bit words. Extract the length of the data. 540 */ 541 if (actual_len < sizeof(packet_len)) { 542 debug("Rx: incomplete packet length\n"); 543 return -1; 544 } 545 memcpy(&packet_len, buf_ptr, sizeof(packet_len)); 546 le32_to_cpus(&packet_len); 547 if (((~packet_len >> 16) & 0x7ff) != (packet_len & 0x7ff)) { 548 debug("Rx: malformed packet length: %#x (%#x:%#x)\n", 549 packet_len, (~packet_len >> 16) & 0x7ff, 550 packet_len & 0x7ff); 551 return -1; 552 } 553 packet_len = packet_len & 0x7ff; 554 if (packet_len > actual_len - sizeof(packet_len)) { 555 debug("Rx: too large packet: %d\n", packet_len); 556 return -1; 557 } 558 559 /* Notify net stack */ 560 NetReceive(buf_ptr + sizeof(packet_len), packet_len); 561 562 /* Adjust for next iteration. Packets are padded to 16-bits */ 563 if (packet_len & 1) 564 packet_len++; 565 actual_len -= sizeof(packet_len) + packet_len; 566 buf_ptr += sizeof(packet_len) + packet_len; 567 } 568 569 return err; 570 } 571 572 static void asix_halt(struct eth_device *eth) 573 { 574 debug("** %s()\n", __func__); 575 } 576 577 /* 578 * Asix probing functions 579 */ 580 void asix_eth_before_probe(void) 581 { 582 curr_eth_dev = 0; 583 } 584 585 struct asix_dongle { 586 unsigned short vendor; 587 unsigned short product; 588 int flags; 589 }; 590 591 static const struct asix_dongle const asix_dongles[] = { 592 { 0x05ac, 0x1402, FLAG_TYPE_AX88772 }, /* Apple USB Ethernet Adapter */ 593 { 0x07d1, 0x3c05, FLAG_TYPE_AX88772 }, /* D-Link DUB-E100 H/W Ver B1 */ 594 /* Cables-to-Go USB Ethernet Adapter */ 595 { 0x0b95, 0x772a, FLAG_TYPE_AX88772 }, 596 { 0x0b95, 0x7720, FLAG_TYPE_AX88772 }, /* Trendnet TU2-ET100 V3.0R */ 597 { 0x0b95, 0x1720, FLAG_TYPE_AX88172 }, /* SMC */ 598 { 0x0db0, 0xa877, FLAG_TYPE_AX88772 }, /* MSI - ASIX 88772a */ 599 { 0x13b1, 0x0018, FLAG_TYPE_AX88172 }, /* Linksys 200M v2.1 */ 600 { 0x1557, 0x7720, FLAG_TYPE_AX88772 }, /* 0Q0 cable ethernet */ 601 /* DLink DUB-E100 H/W Ver B1 Alternate */ 602 { 0x2001, 0x3c05, FLAG_TYPE_AX88772 }, 603 /* ASIX 88772B */ 604 { 0x0b95, 0x772b, FLAG_TYPE_AX88772B | FLAG_EEPROM_MAC }, 605 { 0x0000, 0x0000, FLAG_NONE } /* END - Do not remove */ 606 }; 607 608 /* Probe to see if a new device is actually an asix device */ 609 int asix_eth_probe(struct usb_device *dev, unsigned int ifnum, 610 struct ueth_data *ss) 611 { 612 struct usb_interface *iface; 613 struct usb_interface_descriptor *iface_desc; 614 int ep_in_found = 0, ep_out_found = 0; 615 int i; 616 617 /* let's examine the device now */ 618 iface = &dev->config.if_desc[ifnum]; 619 iface_desc = &dev->config.if_desc[ifnum].desc; 620 621 for (i = 0; asix_dongles[i].vendor != 0; i++) { 622 if (dev->descriptor.idVendor == asix_dongles[i].vendor && 623 dev->descriptor.idProduct == asix_dongles[i].product) 624 /* Found a supported dongle */ 625 break; 626 } 627 628 if (asix_dongles[i].vendor == 0) 629 return 0; 630 631 memset(ss, 0, sizeof(struct ueth_data)); 632 633 /* At this point, we know we've got a live one */ 634 debug("\n\nUSB Ethernet device detected: %#04x:%#04x\n", 635 dev->descriptor.idVendor, dev->descriptor.idProduct); 636 637 /* Initialize the ueth_data structure with some useful info */ 638 ss->ifnum = ifnum; 639 ss->pusb_dev = dev; 640 ss->subclass = iface_desc->bInterfaceSubClass; 641 ss->protocol = iface_desc->bInterfaceProtocol; 642 643 /* alloc driver private */ 644 ss->dev_priv = calloc(1, sizeof(struct asix_private)); 645 if (!ss->dev_priv) 646 return 0; 647 648 ((struct asix_private *)ss->dev_priv)->flags = asix_dongles[i].flags; 649 650 /* 651 * We are expecting a minimum of 3 endpoints - in, out (bulk), and 652 * int. We will ignore any others. 653 */ 654 for (i = 0; i < iface_desc->bNumEndpoints; i++) { 655 /* is it an BULK endpoint? */ 656 if ((iface->ep_desc[i].bmAttributes & 657 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { 658 u8 ep_addr = iface->ep_desc[i].bEndpointAddress; 659 if (ep_addr & USB_DIR_IN) { 660 if (!ep_in_found) { 661 ss->ep_in = ep_addr & 662 USB_ENDPOINT_NUMBER_MASK; 663 ep_in_found = 1; 664 } 665 } else { 666 if (!ep_out_found) { 667 ss->ep_out = ep_addr & 668 USB_ENDPOINT_NUMBER_MASK; 669 ep_out_found = 1; 670 } 671 } 672 } 673 674 /* is it an interrupt endpoint? */ 675 if ((iface->ep_desc[i].bmAttributes & 676 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { 677 ss->ep_int = iface->ep_desc[i].bEndpointAddress & 678 USB_ENDPOINT_NUMBER_MASK; 679 ss->irqinterval = iface->ep_desc[i].bInterval; 680 } 681 } 682 debug("Endpoints In %d Out %d Int %d\n", 683 ss->ep_in, ss->ep_out, ss->ep_int); 684 685 /* Do some basic sanity checks, and bail if we find a problem */ 686 if (usb_set_interface(dev, iface_desc->bInterfaceNumber, 0) || 687 !ss->ep_in || !ss->ep_out || !ss->ep_int) { 688 debug("Problems with device\n"); 689 return 0; 690 } 691 dev->privptr = (void *)ss; 692 return 1; 693 } 694 695 int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss, 696 struct eth_device *eth) 697 { 698 struct asix_private *priv = (struct asix_private *)ss->dev_priv; 699 700 if (!eth) { 701 debug("%s: missing parameter.\n", __func__); 702 return 0; 703 } 704 sprintf(eth->name, "%s%d", ASIX_BASE_NAME, curr_eth_dev++); 705 eth->init = asix_init; 706 eth->send = asix_send; 707 eth->recv = asix_recv; 708 eth->halt = asix_halt; 709 if (!(priv->flags & FLAG_TYPE_AX88172)) 710 eth->write_hwaddr = asix_write_hwaddr; 711 eth->priv = ss; 712 713 if (asix_basic_reset(ss)) 714 return 0; 715 716 /* Get the MAC address */ 717 if (asix_read_mac(eth)) 718 return 0; 719 debug("MAC %pM\n", eth->enetaddr); 720 721 return 1; 722 } 723