1 /* 2 * Copyright (c) 2014 Rene Griessl <rgriessl@cit-ec.uni-bielefeld.de> 3 * based on the U-Boot Asix driver as well as information 4 * from the Linux AX88179_178a driver 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <usb.h> 11 #include <net.h> 12 #include <linux/mii.h> 13 #include "usb_ether.h" 14 #include <malloc.h> 15 #include <memalign.h> 16 #include <errno.h> 17 18 /* ASIX AX88179 based USB 3.0 Ethernet Devices */ 19 #define AX88179_PHY_ID 0x03 20 #define AX_EEPROM_LEN 0x100 21 #define AX88179_EEPROM_MAGIC 0x17900b95 22 #define AX_MCAST_FLTSIZE 8 23 #define AX_MAX_MCAST 64 24 #define AX_INT_PPLS_LINK (1 << 16) 25 #define AX_RXHDR_L4_TYPE_MASK 0x1c 26 #define AX_RXHDR_L4_TYPE_UDP 4 27 #define AX_RXHDR_L4_TYPE_TCP 16 28 #define AX_RXHDR_L3CSUM_ERR 2 29 #define AX_RXHDR_L4CSUM_ERR 1 30 #define AX_RXHDR_CRC_ERR (1 << 29) 31 #define AX_RXHDR_DROP_ERR (1 << 31) 32 #define AX_ENDPOINT_INT 0x01 33 #define AX_ENDPOINT_IN 0x02 34 #define AX_ENDPOINT_OUT 0x03 35 #define AX_ACCESS_MAC 0x01 36 #define AX_ACCESS_PHY 0x02 37 #define AX_ACCESS_EEPROM 0x04 38 #define AX_ACCESS_EFUS 0x05 39 #define AX_PAUSE_WATERLVL_HIGH 0x54 40 #define AX_PAUSE_WATERLVL_LOW 0x55 41 42 #define PHYSICAL_LINK_STATUS 0x02 43 #define AX_USB_SS (1 << 2) 44 #define AX_USB_HS (1 << 1) 45 46 #define GENERAL_STATUS 0x03 47 #define AX_SECLD (1 << 2) 48 49 #define AX_SROM_ADDR 0x07 50 #define AX_SROM_CMD 0x0a 51 #define EEP_RD (1 << 2) 52 #define EEP_BUSY (1 << 4) 53 54 #define AX_SROM_DATA_LOW 0x08 55 #define AX_SROM_DATA_HIGH 0x09 56 57 #define AX_RX_CTL 0x0b 58 #define AX_RX_CTL_DROPCRCERR (1 << 8) 59 #define AX_RX_CTL_IPE (1 << 9) 60 #define AX_RX_CTL_START (1 << 7) 61 #define AX_RX_CTL_AP (1 << 5) 62 #define AX_RX_CTL_AM (1 << 4) 63 #define AX_RX_CTL_AB (1 << 3) 64 #define AX_RX_CTL_AMALL (1 << 1) 65 #define AX_RX_CTL_PRO (1 << 0) 66 #define AX_RX_CTL_STOP 0 67 68 #define AX_NODE_ID 0x10 69 #define AX_MULFLTARY 0x16 70 71 #define AX_MEDIUM_STATUS_MODE 0x22 72 #define AX_MEDIUM_GIGAMODE (1 << 0) 73 #define AX_MEDIUM_FULL_DUPLEX (1 << 1) 74 #define AX_MEDIUM_EN_125MHZ (1 << 3) 75 #define AX_MEDIUM_RXFLOW_CTRLEN (1 << 4) 76 #define AX_MEDIUM_TXFLOW_CTRLEN (1 << 5) 77 #define AX_MEDIUM_RECEIVE_EN (1 << 8) 78 #define AX_MEDIUM_PS (1 << 9) 79 #define AX_MEDIUM_JUMBO_EN 0x8040 80 81 #define AX_MONITOR_MOD 0x24 82 #define AX_MONITOR_MODE_RWLC (1 << 1) 83 #define AX_MONITOR_MODE_RWMP (1 << 2) 84 #define AX_MONITOR_MODE_PMEPOL (1 << 5) 85 #define AX_MONITOR_MODE_PMETYPE (1 << 6) 86 87 #define AX_GPIO_CTRL 0x25 88 #define AX_GPIO_CTRL_GPIO3EN (1 << 7) 89 #define AX_GPIO_CTRL_GPIO2EN (1 << 6) 90 #define AX_GPIO_CTRL_GPIO1EN (1 << 5) 91 92 #define AX_PHYPWR_RSTCTL 0x26 93 #define AX_PHYPWR_RSTCTL_BZ (1 << 4) 94 #define AX_PHYPWR_RSTCTL_IPRL (1 << 5) 95 #define AX_PHYPWR_RSTCTL_AT (1 << 12) 96 97 #define AX_RX_BULKIN_QCTRL 0x2e 98 #define AX_CLK_SELECT 0x33 99 #define AX_CLK_SELECT_BCS (1 << 0) 100 #define AX_CLK_SELECT_ACS (1 << 1) 101 #define AX_CLK_SELECT_ULR (1 << 3) 102 103 #define AX_RXCOE_CTL 0x34 104 #define AX_RXCOE_IP (1 << 0) 105 #define AX_RXCOE_TCP (1 << 1) 106 #define AX_RXCOE_UDP (1 << 2) 107 #define AX_RXCOE_TCPV6 (1 << 5) 108 #define AX_RXCOE_UDPV6 (1 << 6) 109 110 #define AX_TXCOE_CTL 0x35 111 #define AX_TXCOE_IP (1 << 0) 112 #define AX_TXCOE_TCP (1 << 1) 113 #define AX_TXCOE_UDP (1 << 2) 114 #define AX_TXCOE_TCPV6 (1 << 5) 115 #define AX_TXCOE_UDPV6 (1 << 6) 116 117 #define AX_LEDCTRL 0x73 118 119 #define GMII_PHY_PHYSR 0x11 120 #define GMII_PHY_PHYSR_SMASK 0xc000 121 #define GMII_PHY_PHYSR_GIGA (1 << 15) 122 #define GMII_PHY_PHYSR_100 (1 << 14) 123 #define GMII_PHY_PHYSR_FULL (1 << 13) 124 #define GMII_PHY_PHYSR_LINK (1 << 10) 125 126 #define GMII_LED_ACT 0x1a 127 #define GMII_LED_ACTIVE_MASK 0xff8f 128 #define GMII_LED0_ACTIVE (1 << 4) 129 #define GMII_LED1_ACTIVE (1 << 5) 130 #define GMII_LED2_ACTIVE (1 << 6) 131 132 #define GMII_LED_LINK 0x1c 133 #define GMII_LED_LINK_MASK 0xf888 134 #define GMII_LED0_LINK_10 (1 << 0) 135 #define GMII_LED0_LINK_100 (1 << 1) 136 #define GMII_LED0_LINK_1000 (1 << 2) 137 #define GMII_LED1_LINK_10 (1 << 4) 138 #define GMII_LED1_LINK_100 (1 << 5) 139 #define GMII_LED1_LINK_1000 (1 << 6) 140 #define GMII_LED2_LINK_10 (1 << 8) 141 #define GMII_LED2_LINK_100 (1 << 9) 142 #define GMII_LED2_LINK_1000 (1 << 10) 143 #define LED0_ACTIVE (1 << 0) 144 #define LED0_LINK_10 (1 << 1) 145 #define LED0_LINK_100 (1 << 2) 146 #define LED0_LINK_1000 (1 << 3) 147 #define LED0_FD (1 << 4) 148 #define LED0_USB3_MASK 0x001f 149 #define LED1_ACTIVE (1 << 5) 150 #define LED1_LINK_10 (1 << 6) 151 #define LED1_LINK_100 (1 << 7) 152 #define LED1_LINK_1000 (1 << 8) 153 #define LED1_FD (1 << 9) 154 #define LED1_USB3_MASK 0x03e0 155 #define LED2_ACTIVE (1 << 10) 156 #define LED2_LINK_1000 (1 << 13) 157 #define LED2_LINK_100 (1 << 12) 158 #define LED2_LINK_10 (1 << 11) 159 #define LED2_FD (1 << 14) 160 #define LED_VALID (1 << 15) 161 #define LED2_USB3_MASK 0x7c00 162 163 #define GMII_PHYPAGE 0x1e 164 #define GMII_PHY_PAGE_SELECT 0x1f 165 #define GMII_PHY_PGSEL_EXT 0x0007 166 #define GMII_PHY_PGSEL_PAGE0 0x0000 167 168 /* local defines */ 169 #define ASIX_BASE_NAME "axg" 170 #define USB_CTRL_SET_TIMEOUT 5000 171 #define USB_CTRL_GET_TIMEOUT 5000 172 #define USB_BULK_SEND_TIMEOUT 5000 173 #define USB_BULK_RECV_TIMEOUT 5000 174 175 #define AX_RX_URB_SIZE 1024 * 0x12 176 #define BLK_FRAME_SIZE 0x200 177 #define PHY_CONNECT_TIMEOUT 5000 178 179 #define TIMEOUT_RESOLUTION 50 /* ms */ 180 181 #define FLAG_NONE 0 182 #define FLAG_TYPE_AX88179 (1U << 0) 183 #define FLAG_TYPE_AX88178a (1U << 1) 184 #define FLAG_TYPE_DLINK_DUB1312 (1U << 2) 185 #define FLAG_TYPE_SITECOM (1U << 3) 186 #define FLAG_TYPE_SAMSUNG (1U << 4) 187 #define FLAG_TYPE_LENOVO (1U << 5) 188 189 /* local vars */ 190 static const struct { 191 unsigned char ctrl, timer_l, timer_h, size, ifg; 192 } AX88179_BULKIN_SIZE[] = { 193 {7, 0x4f, 0, 0x02, 0xff}, 194 {7, 0x20, 3, 0x03, 0xff}, 195 {7, 0xae, 7, 0x04, 0xff}, 196 {7, 0xcc, 0x4c, 0x04, 8}, 197 }; 198 199 static int curr_eth_dev; /* index for name of next device detected */ 200 201 /* driver private */ 202 struct asix_private { 203 int flags; 204 int rx_urb_size; 205 int maxpacketsize; 206 }; 207 208 /* 209 * Asix infrastructure commands 210 */ 211 static int asix_write_cmd(struct ueth_data *dev, u8 cmd, u16 value, u16 index, 212 u16 size, void *data) 213 { 214 int len; 215 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, size); 216 217 debug("asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n", 218 cmd, value, index, size); 219 220 memcpy(buf, data, size); 221 222 len = usb_control_msg( 223 dev->pusb_dev, 224 usb_sndctrlpipe(dev->pusb_dev, 0), 225 cmd, 226 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 227 value, 228 index, 229 buf, 230 size, 231 USB_CTRL_SET_TIMEOUT); 232 233 return len == size ? 0 : ECOMM; 234 } 235 236 static int asix_read_cmd(struct ueth_data *dev, u8 cmd, u16 value, u16 index, 237 u16 size, void *data) 238 { 239 int len; 240 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, size); 241 242 debug("asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n", 243 cmd, value, index, size); 244 245 len = usb_control_msg( 246 dev->pusb_dev, 247 usb_rcvctrlpipe(dev->pusb_dev, 0), 248 cmd, 249 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 250 value, 251 index, 252 buf, 253 size, 254 USB_CTRL_GET_TIMEOUT); 255 256 memcpy(data, buf, size); 257 258 return len == size ? 0 : ECOMM; 259 } 260 261 static int asix_read_mac(struct eth_device *eth) 262 { 263 struct ueth_data *dev = (struct ueth_data *)eth->priv; 264 u8 buf[ETH_ALEN]; 265 266 asix_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, 6, 6, buf); 267 debug("asix_read_mac() returning %02x:%02x:%02x:%02x:%02x:%02x\n", 268 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); 269 270 memcpy(eth->enetaddr, buf, ETH_ALEN); 271 272 return 0; 273 } 274 275 static int asix_write_mac(struct eth_device *eth) 276 { 277 struct ueth_data *dev = (struct ueth_data *)eth->priv; 278 int ret; 279 280 ret = asix_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, 281 ETH_ALEN, eth->enetaddr); 282 if (ret < 0) 283 debug("Failed to set MAC address: %02x\n", ret); 284 285 return ret; 286 } 287 288 static int asix_basic_reset(struct ueth_data *dev) 289 { 290 struct asix_private *dev_priv = (struct asix_private *)dev->dev_priv; 291 u8 buf[5]; 292 u16 *tmp16; 293 u8 *tmp; 294 295 tmp16 = (u16 *)buf; 296 tmp = (u8 *)buf; 297 298 /* Power up ethernet PHY */ 299 *tmp16 = 0; 300 asix_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); 301 302 *tmp16 = AX_PHYPWR_RSTCTL_IPRL; 303 asix_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); 304 mdelay(200); 305 306 *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS; 307 asix_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp); 308 mdelay(200); 309 310 /* RX bulk configuration */ 311 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5); 312 asix_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp); 313 314 dev_priv->rx_urb_size = 128 * 20; 315 316 /* Water Level configuration */ 317 *tmp = 0x34; 318 asix_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp); 319 320 *tmp = 0x52; 321 asix_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, 1, 1, tmp); 322 323 /* Enable checksum offload */ 324 *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP | 325 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6; 326 asix_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp); 327 328 *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP | 329 AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6; 330 asix_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp); 331 332 /* Configure RX control register => start operation */ 333 *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START | 334 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB; 335 asix_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16); 336 337 *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL | 338 AX_MONITOR_MODE_RWMP; 339 asix_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp); 340 341 /* Configure default medium type => giga */ 342 *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN | 343 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX | 344 AX_MEDIUM_GIGAMODE | AX_MEDIUM_JUMBO_EN; 345 asix_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, tmp16); 346 347 u16 adv = 0; 348 adv = ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_LPACK | 349 ADVERTISE_NPAGE | ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP; 350 asix_write_cmd(dev, AX_ACCESS_PHY, 0x03, MII_ADVERTISE, 2, &adv); 351 352 adv = ADVERTISE_1000FULL; 353 asix_write_cmd(dev, AX_ACCESS_PHY, 0x03, MII_CTRL1000, 2, &adv); 354 355 return 0; 356 } 357 358 static int asix_wait_link(struct ueth_data *dev) 359 { 360 int timeout = 0; 361 int link_detected; 362 u8 buf[2]; 363 u16 *tmp16; 364 365 tmp16 = (u16 *)buf; 366 367 do { 368 asix_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID, 369 MII_BMSR, 2, buf); 370 link_detected = *tmp16 & BMSR_LSTATUS; 371 if (!link_detected) { 372 if (timeout == 0) 373 printf("Waiting for Ethernet connection... "); 374 mdelay(TIMEOUT_RESOLUTION); 375 timeout += TIMEOUT_RESOLUTION; 376 } 377 } while (!link_detected && timeout < PHY_CONNECT_TIMEOUT); 378 379 if (link_detected) { 380 if (timeout > 0) 381 printf("done.\n"); 382 return 0; 383 } else { 384 printf("unable to connect.\n"); 385 return -ENETUNREACH; 386 } 387 } 388 389 /* 390 * Asix callbacks 391 */ 392 static int asix_init(struct eth_device *eth, bd_t *bd) 393 { 394 struct ueth_data *dev = (struct ueth_data *)eth->priv; 395 struct asix_private *dev_priv = (struct asix_private *)dev->dev_priv; 396 u8 buf[2], tmp[5], link_sts; 397 u16 *tmp16, mode; 398 399 400 tmp16 = (u16 *)buf; 401 402 debug("** %s()\n", __func__); 403 404 /* Configure RX control register => start operation */ 405 *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START | 406 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB; 407 if (asix_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16) != 0) 408 goto out_err; 409 410 if (asix_wait_link(dev) != 0) { 411 /*reset device and try again*/ 412 printf("Reset Ethernet Device\n"); 413 asix_basic_reset(dev); 414 if (asix_wait_link(dev) != 0) 415 goto out_err; 416 } 417 418 /* Configure link */ 419 mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN | 420 AX_MEDIUM_RXFLOW_CTRLEN; 421 422 asix_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS, 423 1, 1, &link_sts); 424 425 asix_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID, 426 GMII_PHY_PHYSR, 2, tmp16); 427 428 if (!(*tmp16 & GMII_PHY_PHYSR_LINK)) { 429 return 0; 430 } else if (GMII_PHY_PHYSR_GIGA == (*tmp16 & GMII_PHY_PHYSR_SMASK)) { 431 mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ | 432 AX_MEDIUM_JUMBO_EN; 433 434 if (link_sts & AX_USB_SS) 435 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5); 436 else if (link_sts & AX_USB_HS) 437 memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5); 438 else 439 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5); 440 } else if (GMII_PHY_PHYSR_100 == (*tmp16 & GMII_PHY_PHYSR_SMASK)) { 441 mode |= AX_MEDIUM_PS; 442 443 if (link_sts & (AX_USB_SS | AX_USB_HS)) 444 memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5); 445 else 446 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5); 447 } else { 448 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5); 449 } 450 451 /* RX bulk configuration */ 452 asix_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp); 453 454 dev_priv->rx_urb_size = (1024 * (tmp[3] + 2)); 455 if (*tmp16 & GMII_PHY_PHYSR_FULL) 456 mode |= AX_MEDIUM_FULL_DUPLEX; 457 asix_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 458 2, 2, &mode); 459 460 return 0; 461 out_err: 462 return -1; 463 } 464 465 static int asix_send(struct eth_device *eth, void *packet, int length) 466 { 467 struct ueth_data *dev = (struct ueth_data *)eth->priv; 468 struct asix_private *dev_priv = (struct asix_private *)dev->dev_priv; 469 470 int err; 471 u32 packet_len, tx_hdr2; 472 int actual_len, framesize; 473 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, msg, 474 PKTSIZE + (2 * sizeof(packet_len))); 475 476 debug("** %s(), len %d\n", __func__, length); 477 478 packet_len = length; 479 cpu_to_le32s(&packet_len); 480 481 memcpy(msg, &packet_len, sizeof(packet_len)); 482 framesize = dev_priv->maxpacketsize; 483 tx_hdr2 = 0; 484 if (((length + 8) % framesize) == 0) 485 tx_hdr2 |= 0x80008000; /* Enable padding */ 486 487 cpu_to_le32s(&tx_hdr2); 488 489 memcpy(msg + sizeof(packet_len), &tx_hdr2, sizeof(tx_hdr2)); 490 491 memcpy(msg + sizeof(packet_len) + sizeof(tx_hdr2), 492 (void *)packet, length); 493 494 err = usb_bulk_msg(dev->pusb_dev, 495 usb_sndbulkpipe(dev->pusb_dev, dev->ep_out), 496 (void *)msg, 497 length + sizeof(packet_len) + sizeof(tx_hdr2), 498 &actual_len, 499 USB_BULK_SEND_TIMEOUT); 500 debug("Tx: len = %u, actual = %u, err = %d\n", 501 length + sizeof(packet_len), actual_len, err); 502 503 return err; 504 } 505 506 static int asix_recv(struct eth_device *eth) 507 { 508 struct ueth_data *dev = (struct ueth_data *)eth->priv; 509 struct asix_private *dev_priv = (struct asix_private *)dev->dev_priv; 510 511 u16 frame_pos; 512 int err; 513 int actual_len; 514 515 int pkt_cnt; 516 u32 rx_hdr; 517 u16 hdr_off; 518 u32 *pkt_hdr; 519 ALLOC_CACHE_ALIGN_BUFFER(u8, recv_buf, dev_priv->rx_urb_size); 520 521 actual_len = -1; 522 523 debug("** %s()\n", __func__); 524 525 err = usb_bulk_msg(dev->pusb_dev, 526 usb_rcvbulkpipe(dev->pusb_dev, dev->ep_in), 527 (void *)recv_buf, 528 dev_priv->rx_urb_size, 529 &actual_len, 530 USB_BULK_RECV_TIMEOUT); 531 debug("Rx: len = %u, actual = %u, err = %d\n", dev_priv->rx_urb_size, 532 actual_len, err); 533 534 if (err != 0) { 535 debug("Rx: failed to receive\n"); 536 return -ECOMM; 537 } 538 if (actual_len > dev_priv->rx_urb_size) { 539 debug("Rx: received too many bytes %d\n", actual_len); 540 return -EMSGSIZE; 541 } 542 543 544 rx_hdr = *(u32 *)(recv_buf + actual_len - 4); 545 le32_to_cpus(&pkt_hdr); 546 547 pkt_cnt = (u16)rx_hdr; 548 hdr_off = (u16)(rx_hdr >> 16); 549 pkt_hdr = (u32 *)(recv_buf + hdr_off); 550 551 552 frame_pos = 0; 553 554 while (pkt_cnt--) { 555 u16 pkt_len; 556 557 le32_to_cpus(pkt_hdr); 558 pkt_len = (*pkt_hdr >> 16) & 0x1fff; 559 560 frame_pos += 2; 561 562 net_process_received_packet(recv_buf + frame_pos, pkt_len); 563 564 pkt_hdr++; 565 frame_pos += ((pkt_len + 7) & 0xFFF8)-2; 566 567 if (pkt_cnt == 0) 568 return 0; 569 } 570 return err; 571 } 572 573 static void asix_halt(struct eth_device *eth) 574 { 575 debug("** %s()\n", __func__); 576 } 577 578 /* 579 * Asix probing functions 580 */ 581 void ax88179_eth_before_probe(void) 582 { 583 curr_eth_dev = 0; 584 } 585 586 struct asix_dongle { 587 unsigned short vendor; 588 unsigned short product; 589 int flags; 590 }; 591 592 static const struct asix_dongle asix_dongles[] = { 593 { 0x0b95, 0x1790, FLAG_TYPE_AX88179 }, 594 { 0x0b95, 0x178a, FLAG_TYPE_AX88178a }, 595 { 0x2001, 0x4a00, FLAG_TYPE_DLINK_DUB1312 }, 596 { 0x0df6, 0x0072, FLAG_TYPE_SITECOM }, 597 { 0x04e8, 0xa100, FLAG_TYPE_SAMSUNG }, 598 { 0x17ef, 0x304b, FLAG_TYPE_LENOVO }, 599 { 0x0000, 0x0000, FLAG_NONE } /* END - Do not remove */ 600 }; 601 602 /* Probe to see if a new device is actually an asix device */ 603 int ax88179_eth_probe(struct usb_device *dev, unsigned int ifnum, 604 struct ueth_data *ss) 605 { 606 struct usb_interface *iface; 607 struct usb_interface_descriptor *iface_desc; 608 struct asix_private *dev_priv; 609 int ep_in_found = 0, ep_out_found = 0; 610 int i; 611 612 /* let's examine the device now */ 613 iface = &dev->config.if_desc[ifnum]; 614 iface_desc = &dev->config.if_desc[ifnum].desc; 615 616 for (i = 0; asix_dongles[i].vendor != 0; i++) { 617 if (dev->descriptor.idVendor == asix_dongles[i].vendor && 618 dev->descriptor.idProduct == asix_dongles[i].product) 619 /* Found a supported dongle */ 620 break; 621 } 622 623 if (asix_dongles[i].vendor == 0) 624 return 0; 625 626 memset(ss, 0, sizeof(struct ueth_data)); 627 628 /* At this point, we know we've got a live one */ 629 debug("\n\nUSB Ethernet device detected: %#04x:%#04x\n", 630 dev->descriptor.idVendor, dev->descriptor.idProduct); 631 632 /* Initialize the ueth_data structure with some useful info */ 633 ss->ifnum = ifnum; 634 ss->pusb_dev = dev; 635 ss->subclass = iface_desc->bInterfaceSubClass; 636 ss->protocol = iface_desc->bInterfaceProtocol; 637 638 /* alloc driver private */ 639 ss->dev_priv = calloc(1, sizeof(struct asix_private)); 640 if (!ss->dev_priv) 641 return 0; 642 dev_priv = ss->dev_priv; 643 dev_priv->flags = asix_dongles[i].flags; 644 645 /* 646 * We are expecting a minimum of 3 endpoints - in, out (bulk), and 647 * int. We will ignore any others. 648 */ 649 for (i = 0; i < iface_desc->bNumEndpoints; i++) { 650 /* is it an interrupt endpoint? */ 651 if ((iface->ep_desc[i].bmAttributes & 652 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { 653 ss->ep_int = iface->ep_desc[i].bEndpointAddress & 654 USB_ENDPOINT_NUMBER_MASK; 655 ss->irqinterval = iface->ep_desc[i].bInterval; 656 continue; 657 } 658 659 /* is it an BULK endpoint? */ 660 if (!((iface->ep_desc[i].bmAttributes & 661 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK)) 662 continue; 663 664 u8 ep_addr = iface->ep_desc[i].bEndpointAddress; 665 if ((ep_addr & USB_DIR_IN) && !ep_in_found) { 666 ss->ep_in = ep_addr & 667 USB_ENDPOINT_NUMBER_MASK; 668 ep_in_found = 1; 669 } 670 if (!(ep_addr & USB_DIR_IN) && !ep_out_found) { 671 ss->ep_out = ep_addr & 672 USB_ENDPOINT_NUMBER_MASK; 673 dev_priv->maxpacketsize = 674 dev->epmaxpacketout[AX_ENDPOINT_OUT]; 675 ep_out_found = 1; 676 } 677 } 678 debug("Endpoints In %d Out %d Int %d\n", 679 ss->ep_in, ss->ep_out, ss->ep_int); 680 681 /* Do some basic sanity checks, and bail if we find a problem */ 682 if (usb_set_interface(dev, iface_desc->bInterfaceNumber, 0) || 683 !ss->ep_in || !ss->ep_out || !ss->ep_int) { 684 debug("Problems with device\n"); 685 return 0; 686 } 687 dev->privptr = (void *)ss; 688 return 1; 689 } 690 691 int ax88179_eth_get_info(struct usb_device *dev, struct ueth_data *ss, 692 struct eth_device *eth) 693 { 694 if (!eth) { 695 debug("%s: missing parameter.\n", __func__); 696 return 0; 697 } 698 sprintf(eth->name, "%s%d", ASIX_BASE_NAME, curr_eth_dev++); 699 eth->init = asix_init; 700 eth->send = asix_send; 701 eth->recv = asix_recv; 702 eth->halt = asix_halt; 703 eth->write_hwaddr = asix_write_mac; 704 eth->priv = ss; 705 706 if (asix_basic_reset(ss)) 707 return 0; 708 709 /* Get the MAC address */ 710 if (asix_read_mac(eth)) 711 return 0; 712 debug("MAC %pM\n", eth->enetaddr); 713 714 return 1; 715 } 716