1 /* 2 * Copyright (c) 2011 The Chromium OS Authors. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <usb.h> 9 #include <linux/mii.h> 10 #include "usb_ether.h" 11 #include <malloc.h> 12 13 14 /* ASIX AX8817X based USB 2.0 Ethernet Devices */ 15 16 #define AX_CMD_SET_SW_MII 0x06 17 #define AX_CMD_READ_MII_REG 0x07 18 #define AX_CMD_WRITE_MII_REG 0x08 19 #define AX_CMD_SET_HW_MII 0x0a 20 #define AX_CMD_READ_EEPROM 0x0b 21 #define AX_CMD_READ_RX_CTL 0x0f 22 #define AX_CMD_WRITE_RX_CTL 0x10 23 #define AX_CMD_WRITE_IPG0 0x12 24 #define AX_CMD_READ_NODE_ID 0x13 25 #define AX_CMD_WRITE_NODE_ID 0x14 26 #define AX_CMD_READ_PHY_ID 0x19 27 #define AX_CMD_WRITE_MEDIUM_MODE 0x1b 28 #define AX_CMD_WRITE_GPIOS 0x1f 29 #define AX_CMD_SW_RESET 0x20 30 #define AX_CMD_SW_PHY_SELECT 0x22 31 32 #define AX_SWRESET_CLEAR 0x00 33 #define AX_SWRESET_PRTE 0x04 34 #define AX_SWRESET_PRL 0x08 35 #define AX_SWRESET_IPRL 0x20 36 #define AX_SWRESET_IPPD 0x40 37 38 #define AX88772_IPG0_DEFAULT 0x15 39 #define AX88772_IPG1_DEFAULT 0x0c 40 #define AX88772_IPG2_DEFAULT 0x12 41 42 /* AX88772 & AX88178 Medium Mode Register */ 43 #define AX_MEDIUM_PF 0x0080 44 #define AX_MEDIUM_JFE 0x0040 45 #define AX_MEDIUM_TFC 0x0020 46 #define AX_MEDIUM_RFC 0x0010 47 #define AX_MEDIUM_ENCK 0x0008 48 #define AX_MEDIUM_AC 0x0004 49 #define AX_MEDIUM_FD 0x0002 50 #define AX_MEDIUM_GM 0x0001 51 #define AX_MEDIUM_SM 0x1000 52 #define AX_MEDIUM_SBP 0x0800 53 #define AX_MEDIUM_PS 0x0200 54 #define AX_MEDIUM_RE 0x0100 55 56 #define AX88178_MEDIUM_DEFAULT \ 57 (AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \ 58 AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \ 59 AX_MEDIUM_RE) 60 61 #define AX88772_MEDIUM_DEFAULT \ 62 (AX_MEDIUM_FD | AX_MEDIUM_RFC | \ 63 AX_MEDIUM_TFC | AX_MEDIUM_PS | \ 64 AX_MEDIUM_AC | AX_MEDIUM_RE) 65 66 /* AX88772 & AX88178 RX_CTL values */ 67 #define AX_RX_CTL_SO 0x0080 68 #define AX_RX_CTL_AB 0x0008 69 70 #define AX_DEFAULT_RX_CTL \ 71 (AX_RX_CTL_SO | AX_RX_CTL_AB) 72 73 /* GPIO 2 toggles */ 74 #define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */ 75 #define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */ 76 #define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */ 77 78 /* local defines */ 79 #define ASIX_BASE_NAME "asx" 80 #define USB_CTRL_SET_TIMEOUT 5000 81 #define USB_CTRL_GET_TIMEOUT 5000 82 #define USB_BULK_SEND_TIMEOUT 5000 83 #define USB_BULK_RECV_TIMEOUT 5000 84 85 #define AX_RX_URB_SIZE 2048 86 #define PHY_CONNECT_TIMEOUT 5000 87 88 /* asix_flags defines */ 89 #define FLAG_NONE 0 90 #define FLAG_TYPE_AX88172 (1U << 0) 91 #define FLAG_TYPE_AX88772 (1U << 1) 92 #define FLAG_TYPE_AX88772B (1U << 2) 93 #define FLAG_EEPROM_MAC (1U << 3) /* initial mac address in eeprom */ 94 95 /* local vars */ 96 static int curr_eth_dev; /* index for name of next device detected */ 97 98 /* driver private */ 99 struct asix_private { 100 int flags; 101 }; 102 103 /* 104 * Asix infrastructure commands 105 */ 106 static int asix_write_cmd(struct ueth_data *dev, u8 cmd, u16 value, u16 index, 107 u16 size, void *data) 108 { 109 int len; 110 111 debug("asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x " 112 "size=%d\n", cmd, value, index, size); 113 114 len = usb_control_msg( 115 dev->pusb_dev, 116 usb_sndctrlpipe(dev->pusb_dev, 0), 117 cmd, 118 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 119 value, 120 index, 121 data, 122 size, 123 USB_CTRL_SET_TIMEOUT); 124 125 return len == size ? 0 : -1; 126 } 127 128 static int asix_read_cmd(struct ueth_data *dev, u8 cmd, u16 value, u16 index, 129 u16 size, void *data) 130 { 131 int len; 132 133 debug("asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n", 134 cmd, value, index, size); 135 136 len = usb_control_msg( 137 dev->pusb_dev, 138 usb_rcvctrlpipe(dev->pusb_dev, 0), 139 cmd, 140 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 141 value, 142 index, 143 data, 144 size, 145 USB_CTRL_GET_TIMEOUT); 146 return len == size ? 0 : -1; 147 } 148 149 static inline int asix_set_sw_mii(struct ueth_data *dev) 150 { 151 int ret; 152 153 ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); 154 if (ret < 0) 155 debug("Failed to enable software MII access\n"); 156 return ret; 157 } 158 159 static inline int asix_set_hw_mii(struct ueth_data *dev) 160 { 161 int ret; 162 163 ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); 164 if (ret < 0) 165 debug("Failed to enable hardware MII access\n"); 166 return ret; 167 } 168 169 static int asix_mdio_read(struct ueth_data *dev, int phy_id, int loc) 170 { 171 ALLOC_CACHE_ALIGN_BUFFER(__le16, res, 1); 172 173 asix_set_sw_mii(dev); 174 asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, res); 175 asix_set_hw_mii(dev); 176 177 debug("asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", 178 phy_id, loc, le16_to_cpu(*res)); 179 180 return le16_to_cpu(*res); 181 } 182 183 static void 184 asix_mdio_write(struct ueth_data *dev, int phy_id, int loc, int val) 185 { 186 ALLOC_CACHE_ALIGN_BUFFER(__le16, res, 1); 187 *res = cpu_to_le16(val); 188 189 debug("asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", 190 phy_id, loc, val); 191 asix_set_sw_mii(dev); 192 asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, res); 193 asix_set_hw_mii(dev); 194 } 195 196 /* 197 * Asix "high level" commands 198 */ 199 static int asix_sw_reset(struct ueth_data *dev, u8 flags) 200 { 201 int ret; 202 203 ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL); 204 if (ret < 0) 205 debug("Failed to send software reset: %02x\n", ret); 206 else 207 udelay(150 * 1000); 208 209 return ret; 210 } 211 212 static inline int asix_get_phy_addr(struct ueth_data *dev) 213 { 214 ALLOC_CACHE_ALIGN_BUFFER(u8, buf, 2); 215 216 int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf); 217 218 debug("asix_get_phy_addr()\n"); 219 220 if (ret < 0) { 221 debug("Error reading PHYID register: %02x\n", ret); 222 goto out; 223 } 224 debug("asix_get_phy_addr() returning 0x%02x%02x\n", buf[0], buf[1]); 225 ret = buf[1]; 226 227 out: 228 return ret; 229 } 230 231 static int asix_write_medium_mode(struct ueth_data *dev, u16 mode) 232 { 233 int ret; 234 235 debug("asix_write_medium_mode() - mode = 0x%04x\n", mode); 236 ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 237 0, 0, NULL); 238 if (ret < 0) { 239 debug("Failed to write Medium Mode mode to 0x%04x: %02x\n", 240 mode, ret); 241 } 242 return ret; 243 } 244 245 static u16 asix_read_rx_ctl(struct ueth_data *dev) 246 { 247 ALLOC_CACHE_ALIGN_BUFFER(__le16, v, 1); 248 249 int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, v); 250 251 if (ret < 0) 252 debug("Error reading RX_CTL register: %02x\n", ret); 253 else 254 ret = le16_to_cpu(*v); 255 return ret; 256 } 257 258 static int asix_write_rx_ctl(struct ueth_data *dev, u16 mode) 259 { 260 int ret; 261 262 debug("asix_write_rx_ctl() - mode = 0x%04x\n", mode); 263 ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); 264 if (ret < 0) { 265 debug("Failed to write RX_CTL mode to 0x%04x: %02x\n", 266 mode, ret); 267 } 268 return ret; 269 } 270 271 static int asix_write_gpio(struct ueth_data *dev, u16 value, int sleep) 272 { 273 int ret; 274 275 debug("asix_write_gpio() - value = 0x%04x\n", value); 276 ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL); 277 if (ret < 0) { 278 debug("Failed to write GPIO value 0x%04x: %02x\n", 279 value, ret); 280 } 281 if (sleep) 282 udelay(sleep * 1000); 283 284 return ret; 285 } 286 287 static int asix_write_hwaddr(struct eth_device *eth) 288 { 289 struct ueth_data *dev = (struct ueth_data *)eth->priv; 290 int ret; 291 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, ETH_ALEN); 292 293 memcpy(buf, eth->enetaddr, ETH_ALEN); 294 295 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, buf); 296 if (ret < 0) 297 debug("Failed to set MAC address: %02x\n", ret); 298 299 return ret; 300 } 301 302 /* 303 * mii commands 304 */ 305 306 /* 307 * mii_nway_restart - restart NWay (autonegotiation) for this interface 308 * 309 * Returns 0 on success, negative on error. 310 */ 311 static int mii_nway_restart(struct ueth_data *dev) 312 { 313 int bmcr; 314 int r = -1; 315 316 /* if autoneg is off, it's an error */ 317 bmcr = asix_mdio_read(dev, dev->phy_id, MII_BMCR); 318 319 if (bmcr & BMCR_ANENABLE) { 320 bmcr |= BMCR_ANRESTART; 321 asix_mdio_write(dev, dev->phy_id, MII_BMCR, bmcr); 322 r = 0; 323 } 324 325 return r; 326 } 327 328 static int asix_read_mac(struct eth_device *eth) 329 { 330 struct ueth_data *dev = (struct ueth_data *)eth->priv; 331 struct asix_private *priv = (struct asix_private *)dev->dev_priv; 332 int i; 333 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, ETH_ALEN); 334 335 if (priv->flags & FLAG_EEPROM_MAC) { 336 for (i = 0; i < (ETH_ALEN >> 1); i++) { 337 if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, 338 0x04 + i, 0, 2, buf) < 0) { 339 debug("Failed to read SROM address 04h.\n"); 340 return -1; 341 } 342 memcpy((eth->enetaddr + i * 2), buf, 2); 343 } 344 } else { 345 if (asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf) 346 < 0) { 347 debug("Failed to read MAC address.\n"); 348 return -1; 349 } 350 memcpy(eth->enetaddr, buf, ETH_ALEN); 351 } 352 353 return 0; 354 } 355 356 static int asix_basic_reset(struct ueth_data *dev) 357 { 358 int embd_phy; 359 u16 rx_ctl; 360 361 if (asix_write_gpio(dev, 362 AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5) < 0) 363 return -1; 364 365 /* 0x10 is the phy id of the embedded 10/100 ethernet phy */ 366 embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0); 367 if (asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 368 embd_phy, 0, 0, NULL) < 0) { 369 debug("Select PHY #1 failed\n"); 370 return -1; 371 } 372 373 if (asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL) < 0) 374 return -1; 375 376 if (asix_sw_reset(dev, AX_SWRESET_CLEAR) < 0) 377 return -1; 378 379 if (embd_phy) { 380 if (asix_sw_reset(dev, AX_SWRESET_IPRL) < 0) 381 return -1; 382 } else { 383 if (asix_sw_reset(dev, AX_SWRESET_PRTE) < 0) 384 return -1; 385 } 386 387 rx_ctl = asix_read_rx_ctl(dev); 388 debug("RX_CTL is 0x%04x after software reset\n", rx_ctl); 389 if (asix_write_rx_ctl(dev, 0x0000) < 0) 390 return -1; 391 392 rx_ctl = asix_read_rx_ctl(dev); 393 debug("RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl); 394 395 dev->phy_id = asix_get_phy_addr(dev); 396 if (dev->phy_id < 0) 397 debug("Failed to read phy id\n"); 398 399 asix_mdio_write(dev, dev->phy_id, MII_BMCR, BMCR_RESET); 400 asix_mdio_write(dev, dev->phy_id, MII_ADVERTISE, 401 ADVERTISE_ALL | ADVERTISE_CSMA); 402 mii_nway_restart(dev); 403 404 if (asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT) < 0) 405 return -1; 406 407 if (asix_write_cmd(dev, AX_CMD_WRITE_IPG0, 408 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT, 409 AX88772_IPG2_DEFAULT, 0, NULL) < 0) { 410 debug("Write IPG,IPG1,IPG2 failed\n"); 411 return -1; 412 } 413 414 return 0; 415 } 416 417 /* 418 * Asix callbacks 419 */ 420 static int asix_init(struct eth_device *eth, bd_t *bd) 421 { 422 struct ueth_data *dev = (struct ueth_data *)eth->priv; 423 int timeout = 0; 424 #define TIMEOUT_RESOLUTION 50 /* ms */ 425 int link_detected; 426 427 debug("** %s()\n", __func__); 428 429 if (asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL) < 0) 430 goto out_err; 431 432 do { 433 link_detected = asix_mdio_read(dev, dev->phy_id, MII_BMSR) & 434 BMSR_LSTATUS; 435 if (!link_detected) { 436 if (timeout == 0) 437 printf("Waiting for Ethernet connection... "); 438 udelay(TIMEOUT_RESOLUTION * 1000); 439 timeout += TIMEOUT_RESOLUTION; 440 } 441 } while (!link_detected && timeout < PHY_CONNECT_TIMEOUT); 442 if (link_detected) { 443 if (timeout != 0) 444 printf("done.\n"); 445 } else { 446 printf("unable to connect.\n"); 447 goto out_err; 448 } 449 450 return 0; 451 out_err: 452 return -1; 453 } 454 455 static int asix_send(struct eth_device *eth, void *packet, int length) 456 { 457 struct ueth_data *dev = (struct ueth_data *)eth->priv; 458 int err; 459 u32 packet_len; 460 int actual_len; 461 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, msg, 462 PKTSIZE + sizeof(packet_len)); 463 464 debug("** %s(), len %d\n", __func__, length); 465 466 packet_len = (((length) ^ 0x0000ffff) << 16) + (length); 467 cpu_to_le32s(&packet_len); 468 469 memcpy(msg, &packet_len, sizeof(packet_len)); 470 memcpy(msg + sizeof(packet_len), (void *)packet, length); 471 472 err = usb_bulk_msg(dev->pusb_dev, 473 usb_sndbulkpipe(dev->pusb_dev, dev->ep_out), 474 (void *)msg, 475 length + sizeof(packet_len), 476 &actual_len, 477 USB_BULK_SEND_TIMEOUT); 478 debug("Tx: len = %zu, actual = %u, err = %d\n", 479 length + sizeof(packet_len), actual_len, err); 480 481 return err; 482 } 483 484 static int asix_recv(struct eth_device *eth) 485 { 486 struct ueth_data *dev = (struct ueth_data *)eth->priv; 487 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, recv_buf, AX_RX_URB_SIZE); 488 unsigned char *buf_ptr; 489 int err; 490 int actual_len; 491 u32 packet_len; 492 493 debug("** %s()\n", __func__); 494 495 err = usb_bulk_msg(dev->pusb_dev, 496 usb_rcvbulkpipe(dev->pusb_dev, dev->ep_in), 497 (void *)recv_buf, 498 AX_RX_URB_SIZE, 499 &actual_len, 500 USB_BULK_RECV_TIMEOUT); 501 debug("Rx: len = %u, actual = %u, err = %d\n", AX_RX_URB_SIZE, 502 actual_len, err); 503 if (err != 0) { 504 debug("Rx: failed to receive\n"); 505 return -1; 506 } 507 if (actual_len > AX_RX_URB_SIZE) { 508 debug("Rx: received too many bytes %d\n", actual_len); 509 return -1; 510 } 511 512 buf_ptr = recv_buf; 513 while (actual_len > 0) { 514 /* 515 * 1st 4 bytes contain the length of the actual data as two 516 * complementary 16-bit words. Extract the length of the data. 517 */ 518 if (actual_len < sizeof(packet_len)) { 519 debug("Rx: incomplete packet length\n"); 520 return -1; 521 } 522 memcpy(&packet_len, buf_ptr, sizeof(packet_len)); 523 le32_to_cpus(&packet_len); 524 if (((~packet_len >> 16) & 0x7ff) != (packet_len & 0x7ff)) { 525 debug("Rx: malformed packet length: %#x (%#x:%#x)\n", 526 packet_len, (~packet_len >> 16) & 0x7ff, 527 packet_len & 0x7ff); 528 return -1; 529 } 530 packet_len = packet_len & 0x7ff; 531 if (packet_len > actual_len - sizeof(packet_len)) { 532 debug("Rx: too large packet: %d\n", packet_len); 533 return -1; 534 } 535 536 /* Notify net stack */ 537 net_process_received_packet(buf_ptr + sizeof(packet_len), 538 packet_len); 539 540 /* Adjust for next iteration. Packets are padded to 16-bits */ 541 if (packet_len & 1) 542 packet_len++; 543 actual_len -= sizeof(packet_len) + packet_len; 544 buf_ptr += sizeof(packet_len) + packet_len; 545 } 546 547 return err; 548 } 549 550 static void asix_halt(struct eth_device *eth) 551 { 552 debug("** %s()\n", __func__); 553 } 554 555 /* 556 * Asix probing functions 557 */ 558 void asix_eth_before_probe(void) 559 { 560 curr_eth_dev = 0; 561 } 562 563 struct asix_dongle { 564 unsigned short vendor; 565 unsigned short product; 566 int flags; 567 }; 568 569 static const struct asix_dongle asix_dongles[] = { 570 { 0x05ac, 0x1402, FLAG_TYPE_AX88772 }, /* Apple USB Ethernet Adapter */ 571 { 0x07d1, 0x3c05, FLAG_TYPE_AX88772 }, /* D-Link DUB-E100 H/W Ver B1 */ 572 { 0x2001, 0x1a02, FLAG_TYPE_AX88772 }, /* D-Link DUB-E100 H/W Ver C1 */ 573 /* Cables-to-Go USB Ethernet Adapter */ 574 { 0x0b95, 0x772a, FLAG_TYPE_AX88772 }, 575 { 0x0b95, 0x7720, FLAG_TYPE_AX88772 }, /* Trendnet TU2-ET100 V3.0R */ 576 { 0x0b95, 0x1720, FLAG_TYPE_AX88172 }, /* SMC */ 577 { 0x0db0, 0xa877, FLAG_TYPE_AX88772 }, /* MSI - ASIX 88772a */ 578 { 0x13b1, 0x0018, FLAG_TYPE_AX88172 }, /* Linksys 200M v2.1 */ 579 { 0x1557, 0x7720, FLAG_TYPE_AX88772 }, /* 0Q0 cable ethernet */ 580 /* DLink DUB-E100 H/W Ver B1 Alternate */ 581 { 0x2001, 0x3c05, FLAG_TYPE_AX88772 }, 582 /* ASIX 88772B */ 583 { 0x0b95, 0x772b, FLAG_TYPE_AX88772B | FLAG_EEPROM_MAC }, 584 { 0x0b95, 0x7e2b, FLAG_TYPE_AX88772B }, 585 { 0x0000, 0x0000, FLAG_NONE } /* END - Do not remove */ 586 }; 587 588 /* Probe to see if a new device is actually an asix device */ 589 int asix_eth_probe(struct usb_device *dev, unsigned int ifnum, 590 struct ueth_data *ss) 591 { 592 struct usb_interface *iface; 593 struct usb_interface_descriptor *iface_desc; 594 int ep_in_found = 0, ep_out_found = 0; 595 int i; 596 597 /* let's examine the device now */ 598 iface = &dev->config.if_desc[ifnum]; 599 iface_desc = &dev->config.if_desc[ifnum].desc; 600 601 for (i = 0; asix_dongles[i].vendor != 0; i++) { 602 if (dev->descriptor.idVendor == asix_dongles[i].vendor && 603 dev->descriptor.idProduct == asix_dongles[i].product) 604 /* Found a supported dongle */ 605 break; 606 } 607 608 if (asix_dongles[i].vendor == 0) 609 return 0; 610 611 memset(ss, 0, sizeof(struct ueth_data)); 612 613 /* At this point, we know we've got a live one */ 614 debug("\n\nUSB Ethernet device detected: %#04x:%#04x\n", 615 dev->descriptor.idVendor, dev->descriptor.idProduct); 616 617 /* Initialize the ueth_data structure with some useful info */ 618 ss->ifnum = ifnum; 619 ss->pusb_dev = dev; 620 ss->subclass = iface_desc->bInterfaceSubClass; 621 ss->protocol = iface_desc->bInterfaceProtocol; 622 623 /* alloc driver private */ 624 ss->dev_priv = calloc(1, sizeof(struct asix_private)); 625 if (!ss->dev_priv) 626 return 0; 627 628 ((struct asix_private *)ss->dev_priv)->flags = asix_dongles[i].flags; 629 630 /* 631 * We are expecting a minimum of 3 endpoints - in, out (bulk), and 632 * int. We will ignore any others. 633 */ 634 for (i = 0; i < iface_desc->bNumEndpoints; i++) { 635 /* is it an BULK endpoint? */ 636 if ((iface->ep_desc[i].bmAttributes & 637 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { 638 u8 ep_addr = iface->ep_desc[i].bEndpointAddress; 639 if (ep_addr & USB_DIR_IN) { 640 if (!ep_in_found) { 641 ss->ep_in = ep_addr & 642 USB_ENDPOINT_NUMBER_MASK; 643 ep_in_found = 1; 644 } 645 } else { 646 if (!ep_out_found) { 647 ss->ep_out = ep_addr & 648 USB_ENDPOINT_NUMBER_MASK; 649 ep_out_found = 1; 650 } 651 } 652 } 653 654 /* is it an interrupt endpoint? */ 655 if ((iface->ep_desc[i].bmAttributes & 656 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { 657 ss->ep_int = iface->ep_desc[i].bEndpointAddress & 658 USB_ENDPOINT_NUMBER_MASK; 659 ss->irqinterval = iface->ep_desc[i].bInterval; 660 } 661 } 662 debug("Endpoints In %d Out %d Int %d\n", 663 ss->ep_in, ss->ep_out, ss->ep_int); 664 665 /* Do some basic sanity checks, and bail if we find a problem */ 666 if (usb_set_interface(dev, iface_desc->bInterfaceNumber, 0) || 667 !ss->ep_in || !ss->ep_out || !ss->ep_int) { 668 debug("Problems with device\n"); 669 return 0; 670 } 671 dev->privptr = (void *)ss; 672 return 1; 673 } 674 675 int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss, 676 struct eth_device *eth) 677 { 678 struct asix_private *priv = (struct asix_private *)ss->dev_priv; 679 680 if (!eth) { 681 debug("%s: missing parameter.\n", __func__); 682 return 0; 683 } 684 sprintf(eth->name, "%s%d", ASIX_BASE_NAME, curr_eth_dev++); 685 eth->init = asix_init; 686 eth->send = asix_send; 687 eth->recv = asix_recv; 688 eth->halt = asix_halt; 689 if (!(priv->flags & FLAG_TYPE_AX88172)) 690 eth->write_hwaddr = asix_write_hwaddr; 691 eth->priv = ss; 692 693 if (asix_basic_reset(ss)) 694 return 0; 695 696 /* Get the MAC address */ 697 if (asix_read_mac(eth)) 698 return 0; 699 debug("MAC %pM\n", eth->enetaddr); 700 701 return 1; 702 } 703