package/robocfg/src/robocfg.c

   1 /*
   2  * Broadcom BCM5325E/536x switch configuration utility
   3  *
   4  * Copyright (C) 2005 Oleg I. Vdovikin
   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
   8  * as published by the Free Software Foundation; either version 2
   9  * of 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., 51 Franklin Street, Fifth Floor, Boston, MA
  19  * 02110-1301, USA.
  20  */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <sys/param.h>
  26 #include <sys/ioctl.h>
  27 #include <sys/socket.h>
  28
  29 /* linux stuff */
  30 typedef u_int64_t u64;
  31 typedef u_int32_t u32;
  32 typedef u_int16_t u16;
  33 typedef u_int8_t u8;
  34
  35 #include <linux/if.h>
  36 #include <linux/sockios.h>
  37 #include <linux/ethtool.h>
  38 #include <linux/mii.h>
  39
  40 #include "etc53xx.h"
  41 #define ROBO_PHY_ADDR   0x1E    /* robo switch phy address */
  42
  43 /* MII registers */
  44 #define REG_MII_PAGE    0x10    /* MII Page register */
  45 #define REG_MII_ADDR    0x11    /* MII Address register */
  46 #define REG_MII_DATA0   0x18    /* MII Data register 0 */
  47
  48 #define REG_MII_PAGE_ENABLE     1
  49 #define REG_MII_ADDR_WRITE      1
  50 #define REG_MII_ADDR_READ       2
  51
  52 /* Private et.o ioctls */
  53 #define SIOCGETCPHYRD           (SIOCDEVPRIVATE + 9)
  54 #define SIOCSETCPHYWR           (SIOCDEVPRIVATE + 10)
  55
  56 typedef struct {
  57         struct ifreq ifr;
  58         int fd;
  59         int et;                 /* use private ioctls */
  60 } robo_t;
  61
  62 static u16 mdio_read(robo_t *robo, u16 phy_id, u8 reg)
  63 {
  64         if (robo->et) {
  65                 int args[2] = { reg };
  66
  67                 if (phy_id != ROBO_PHY_ADDR) {
  68                         fprintf(stderr,
  69                                 "Access to real 'phy' registers unavaliable.\n"
  70                                 "Upgrade kernel driver.\n");
  71
  72                         return 0xffff;
  73                 }
  74
  75                 robo->ifr.ifr_data = (caddr_t) args;
  76                 if (ioctl(robo->fd, SIOCGETCPHYRD, (caddr_t)&robo->ifr) < 0) {
  77                         perror("SIOCGETCPHYRD");
  78                         exit(1);
  79                 }
  80
  81                 return args[1];
  82         } else {
  83                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&robo->ifr.ifr_data;
  84                 mii->phy_id = phy_id;
  85                 mii->reg_num = reg;
  86                 if (ioctl(robo->fd, SIOCGMIIREG, &robo->ifr) < 0) {
  87                         perror("SIOCGMIIREG");
  88                         exit(1);
  89                 }
  90                 return mii->val_out;
  91         }
  92 }
  93
  94 static void mdio_write(robo_t *robo, u16 phy_id, u8 reg, u16 val)
  95 {
  96         if (robo->et) {
  97                 int args[2] = { reg, val };
  98
  99                 if (phy_id != ROBO_PHY_ADDR) {
 100                         fprintf(stderr,
 101                                 "Access to real 'phy' registers unavaliable.\n"
 102                                 "Upgrade kernel driver.\n");
 103                         return;
 104                 }
 105
 106                 robo->ifr.ifr_data = (caddr_t) args;
 107                 if (ioctl(robo->fd, SIOCSETCPHYWR, (caddr_t)&robo->ifr) < 0) {
 108                         perror("SIOCGETCPHYWR");
 109                         exit(1);
 110                 }
 111         } else {
 112                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&robo->ifr.ifr_data;
 113                 mii->phy_id = phy_id;
 114                 mii->reg_num = reg;
 115                 mii->val_in = val;
 116                 if (ioctl(robo->fd, SIOCSMIIREG, &robo->ifr) < 0) {
 117                         perror("SIOCSMIIREG");
 118                         exit(1);
 119                 }
 120         }
 121 }
 122
 123 static int robo_reg(robo_t *robo, u8 page, u8 reg, u8 op)
 124 {
 125         int i = 3;
 126
 127         /* set page number */
 128         mdio_write(robo, ROBO_PHY_ADDR, REG_MII_PAGE,
 129                 (page << 8) | REG_MII_PAGE_ENABLE);
 130
 131         /* set register address */
 132         mdio_write(robo, ROBO_PHY_ADDR, REG_MII_ADDR,
 133                 (reg << 8) | op);
 134
 135         /* check if operation completed */
 136         while (i--) {
 137                 if ((mdio_read(robo, ROBO_PHY_ADDR, REG_MII_ADDR) & 3) == 0)
 138                         return 0;
 139         }
 140
 141         fprintf(stderr, "robo_reg: timeout\n");
 142         exit(1);
 143
 144         return 0;
 145 }
 146
 147 static void robo_read(robo_t *robo, u8 page, u8 reg, u16 *val, int count)
 148 {
 149         int i;
 150
 151         robo_reg(robo, page, reg, REG_MII_ADDR_READ);
 152
 153         for (i = 0; i < count; i++)
 154                 val[i] = mdio_read(robo, ROBO_PHY_ADDR, REG_MII_DATA0 + i);
 155 }
 156
 157 static u16 robo_read16(robo_t *robo, u8 page, u8 reg)
 158 {
 159         robo_reg(robo, page, reg, REG_MII_ADDR_READ);
 160
 161         return mdio_read(robo, ROBO_PHY_ADDR, REG_MII_DATA0);
 162 }
 163
 164 static u32 robo_read32(robo_t *robo, u8 page, u8 reg)
 165 {
 166         robo_reg(robo, page, reg, REG_MII_ADDR_READ);
 167
 168         return mdio_read(robo, ROBO_PHY_ADDR, REG_MII_DATA0) +
 169                 (mdio_read(robo, ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
 170 }
 171
 172 static void robo_write16(robo_t *robo, u8 page, u8 reg, u16 val16)
 173 {
 174         /* write data */
 175         mdio_write(robo, ROBO_PHY_ADDR, REG_MII_DATA0, val16);
 176
 177         robo_reg(robo, page, reg, REG_MII_ADDR_WRITE);
 178 }
 179
 180 static void robo_write32(robo_t *robo, u8 page, u8 reg, u32 val32)
 181 {
 182         /* write data */
 183         mdio_write(robo, ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 65535);
 184         mdio_write(robo, ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
 185
 186         robo_reg(robo, page, reg, REG_MII_ADDR_WRITE);
 187 }
 188
 189 /* checks that attached switch is 5325E/5350 */
 190 static int robo_vlan5350(robo_t *robo)
 191 {
 192         /* set vlan access id to 15 and read it back */
 193         u16 val16 = 15;
 194         robo_write16(robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 195
 196         /* 5365 will refuse this as it does not have this reg */
 197         return (robo_read16(robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
 198 }
 199
 200 u8 port[6] = { 0, 1, 2, 3, 4, 8 };
 201 char ports[6] = { 'W', '4', '3', '2', '1', 'C' };
 202 char *rxtx[4] = { "enabled", "rx_disabled", "tx_disabled", "disabled" };
 203 char *stp[8] = { "none", "disable", "block", "listen", "learn", "forward", "6", "7" };
 204
 205 struct {
 206         char *name;
 207         u16 bmcr;
 208 } media[5] = { { "auto", BMCR_ANENABLE | BMCR_ANRESTART },
 209         { "10HD", 0 }, { "10FD", BMCR_FULLDPLX },
 210         { "100HD", BMCR_SPEED100 }, { "100FD", BMCR_SPEED100 | BMCR_FULLDPLX } };
 211
 212 struct {
 213         char *name;
 214         u16 value;
 215 } mdix[3] = { { "auto", 0x0000 }, { "on", 0x1800 }, { "off", 0x0800 } };
 216
 217 void usage()
 218 {
 219         fprintf(stderr, "Broadcom BCM5325E/536x switch configuration utility\n"
 220                 "Copyright (C) 2005 Oleg I. Vdovikin\n\n"
 221                 "This program is distributed in the hope that it will be useful,\n"
 222                 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
 223                 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
 224                 "GNU General Public License for more details.\n\n");
 225
 226         fprintf(stderr, "Usage: robocfg <op> ... <op>\n"
 227                         "Operations are as below:\n"
 228                         "\tshow\n"
 229                         "\tswitch <enable|disable>\n"
 230                         "\tport <port_number> [state <%s|%s|%s|%s>]\n\t\t[stp %s|%s|%s|%s|%s|%s] [tag <vlan_tag>]\n"
 231                         "\t\t[media %s|%s|%s|%s|%s] [mdi-x %s|%s|%s]\n"
 232                         "\tvlan <vlan_number> [ports <ports_list>]\n"
 233                         "\tvlans <enable|disable|reset>\n\n"
 234                         "\tports_list should be one argument, space separated, quoted if needed,\n"
 235                         "\tport number could be followed by 't' to leave packet vlan tagged (CPU \n"
 236                         "\tport default) or by 'u' to untag packet (other ports default) before \n"
 237                         "\tbringing it to the port, '*' is ignored\n"
 238                         "\nSamples:\n"
 239                         "1) ASUS WL-500g Deluxe stock config (eth0 is WAN, eth0.1 is LAN):\n"
 240                         "robocfg switch disable vlans enable reset vlan 0 ports \"0 5u\" vlan 1 ports \"1 2 3 4 5t\""
 241                         " port 0 state enabled stp none switch enable\n"
 242                         "2) WRT54g, WL-500g Deluxe OpenWRT config (vlan0 is LAN, vlan1 is WAN):\n"
 243                         "robocfg switch disable vlans enable reset vlan 0 ports \"1 2 3 4 5t\" vlan 1 ports \"0 5t\""
 244                         " port 0 state enabled stp none switch enable\n",
 245                         rxtx[0], rxtx[1], rxtx[2], rxtx[3], stp[0], stp[1], stp[2], stp[3], stp[4], stp[5],
 246                         media[0].name, media[1].name, media[2].name, media[3].name, media[4].name,
 247                         mdix[0].name, mdix[1].name, mdix[2].name);
 248 }
 249
 250 int
 251 main(int argc, char *argv[])
 252 {
 253         u16 val16;
 254         u16 mac[3];
 255         int i = 0, j;
 256         int robo5350 = 0;
 257         u32 phyid;
 258
 259         static robo_t robo;
 260         struct ethtool_drvinfo info;
 261
 262         if ((robo.fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
 263                 perror("socket");
 264                 exit(1);
 265         }
 266
 267         /* the only interface for now */
 268         strcpy(robo.ifr.ifr_name, "eth0");
 269
 270         memset(&info, 0, sizeof(info));
 271         info.cmd = ETHTOOL_GDRVINFO;
 272         robo.ifr.ifr_data = (caddr_t)&info;
 273         if (ioctl(robo.fd, SIOCETHTOOL, (caddr_t)&robo.ifr) < 0) {
 274                 perror("SIOCETHTOOL: your ethernet module is either unsupported or outdated");
 275 //              exit(1);
 276         } else
 277         if (strcmp(info.driver, "et0") && strcmp(info.driver, "b44")) {
 278                 fprintf(stderr, "No suitable module found for %s (managed by %s)\n",
 279                         robo.ifr.ifr_name, info.driver);
 280                 exit(1);
 281         }
 282
 283         /* try access using MII ioctls - get phy address */
 284         if (ioctl(robo.fd, SIOCGMIIPHY, &robo.ifr) < 0) {
 285                 robo.et = 1;
 286         } else {
 287                 /* got phy address check for robo address */
 288                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&robo.ifr.ifr_data;
 289                 if (mii->phy_id != ROBO_PHY_ADDR) {
 290                         fprintf(stderr, "Invalid phy address (%d)\n", mii->phy_id);
 291                         exit(1);
 292                 }
 293         }
 294
 295         phyid = mdio_read(&robo, ROBO_PHY_ADDR, 0x2) |
 296                 (mdio_read(&robo, ROBO_PHY_ADDR, 0x3) << 16);
 297
 298         if (phyid == 0xffffffff || phyid == 0x55210022) {
 299                 fprintf(stderr, "No Robo switch in managed mode found\n");
 300                 exit(1);
 301         }
 302
 303         robo5350 = robo_vlan5350(&robo);
 304
 305         for (i = 1; i < argc;) {
 306                 if (strcasecmp(argv[i], "port") == 0 && (i + 1) < argc)
 307                 {
 308                         int index = atoi(argv[++i]);
 309                         /* read port specs */
 310                         while (++i < argc) {
 311                                 if (strcasecmp(argv[i], "state") == 0 && ++i < argc) {
 312                                         for (j = 0; j < 4 && strcasecmp(argv[i], rxtx[j]); j++);
 313                                         if (j < 4) {
 314                                                 /* change state */
 315                                                 robo_write16(&robo,ROBO_CTRL_PAGE, port[index],
 316                                                         (robo_read16(&robo, ROBO_CTRL_PAGE, port[index]) & ~(3 << 0)) | (j << 0));
 317                                         } else {
 318                                                 fprintf(stderr, "Invalid state '%s'.\n", argv[i]);
 319                                                 exit(1);
 320                                         }
 321                                 } else
 322                                 if (strcasecmp(argv[i], "stp") == 0 && ++i < argc) {
 323                                         for (j = 0; j < 8 && strcasecmp(argv[i], stp[j]); j++);
 324                                         if (j < 8) {
 325                                                 /* change stp */
 326                                                 robo_write16(&robo,ROBO_CTRL_PAGE, port[index],
 327                                                         (robo_read16(&robo, ROBO_CTRL_PAGE, port[index]) & ~(7 << 5)) | (j << 5));
 328                                         } else {
 329                                                 fprintf(stderr, "Invalid stp '%s'.\n", argv[i]);
 330                                                 exit(1);
 331                                         }
 332                                 } else
 333                                 if (strcasecmp(argv[i], "media") == 0 && ++i < argc) {
 334                                         for (j = 0; j < 5 && strcasecmp(argv[i], media[j].name); j++);
 335                                         if (j < 5) {
 336                                                 mdio_write(&robo, port[index], MII_BMCR, media[j].bmcr);
 337                                         } else {
 338                                                 fprintf(stderr, "Invalid media '%s'.\n", argv[i]);
 339                                                 exit(1);
 340                                         }
 341                                 } else
 342                                 if (strcasecmp(argv[i], "mdi-x") == 0 && ++i < argc) {
 343                                         for (j = 0; j < 3 && strcasecmp(argv[i], mdix[j].name); j++);
 344                                         if (j < 3) {
 345                                                 mdio_write(&robo, port[index], 0x1c, mdix[j].value |
 346                                                     (mdio_read(&robo, port[index], 0x1c) & ~0x1800));
 347                                         } else {
 348                                                 fprintf(stderr, "Invalid mdi-x '%s'.\n", argv[i]);
 349                                                 exit(1);
 350                                         }
 351                                 } else
 352                                 if (strcasecmp(argv[i], "tag") == 0 && ++i < argc) {
 353                                         j = atoi(argv[i]);
 354                                         /* change vlan tag */
 355                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (index << 1), j);
 356                                 } else break;
 357                         }
 358                 } else
 359                 if (strcasecmp(argv[i], "vlan") == 0 && (i + 1) < argc)
 360                 {
 361                         int index = atoi(argv[++i]);
 362                         while (++i < argc) {
 363                                 if (strcasecmp(argv[i], "ports") == 0 && ++i < argc) {
 364                                         char *ports = argv[i];
 365                                         int untag = 0;
 366                                         int member = 0;
 367
 368                                         while (*ports >= '0' && *ports <= '9') {
 369                                                 j = *ports++ - '0';
 370                                                 member |= 1 << j;
 371
 372                                                 /* untag if needed, CPU port requires special handling */
 373                                                 if (*ports == 'u' || (j != 5 && (*ports == ' ' || *ports == 0)))
 374                                                 {
 375                                                         untag |= 1 << j;
 376                                                         if (*ports) ports++;
 377                                                         /* change default vlan tag */
 378                                                         robo_write16(&robo, ROBO_VLAN_PAGE,
 379                                                                 ROBO_VLAN_PORT0_DEF_TAG + (j << 1), index);
 380                                                 } else
 381                                                 if (*ports == '*' || *ports == 't' || *ports == ' ') ports++;
 382                                                 else break;
 383
 384                                                 while (*ports == ' ') ports++;
 385                                         }
 386
 387                                         if (*ports) {
 388                                                 fprintf(stderr, "Invalid ports '%s'.\n", argv[i]);
 389                                                 exit(1);
 390                                         } else {
 391                                                 /* write config now */
 392                                                 val16 = (index) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 393                                                 if (robo5350) {
 394                                                         robo_write32(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
 395                                                                 (1 << 20) /* valid */ | (untag << 6) | member);
 396                                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 397                                                 } else {
 398                                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
 399                                                                 (1 << 14)  /* valid */ | (untag << 7) | member);
 400                                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 401                                                 }
 402                                         }
 403                                 } else break;
 404                         }
 405                 } else
 406                 if (strcasecmp(argv[i], "switch") == 0 && (i + 1) < argc)
 407                 {
 408                         /* enable/disable switching */
 409                         robo_write16(&robo, ROBO_CTRL_PAGE, ROBO_SWITCH_MODE,
 410                                 (robo_read16(&robo, ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) |
 411                                 (*argv[++i] == 'e' ? 2 : 0));
 412                         i++;
 413                 } else
 414                 if (strcasecmp(argv[i], "vlans") == 0 && (i + 1) < argc)
 415                 {
 416                         while (++i < argc) {
 417                                 if (strcasecmp(argv[i], "reset") == 0) {
 418                                         /* reset vlan validity bit */
 419                                         for (j = 0; j <= (robo5350 ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++)
 420                                         {
 421                                                 /* write config now */
 422                                                 val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 423                                                 if (robo5350) {
 424                                                         robo_write32(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350, 0);
 425                                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 426                                                 } else {
 427                                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
 428                                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 429                                                 }
 430                                         }
 431                                 } else
 432                                 if (strcasecmp(argv[i], "enable") == 0 || strcasecmp(argv[i], "disable") == 0)
 433                                 {
 434                                         int disable = (*argv[i] == 'd') || (*argv[i] == 'D');
 435                                         /* enable/disable vlans */
 436                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
 437                                                 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
 438
 439                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
 440                                                 (1 << 1) | (1 << 2) | (1 << 3) /* RSV multicast */);
 441
 442                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
 443                                                 (1 << 6) /* drop invalid VID frames */);
 444
 445                                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
 446                                                 (1 << 3) /* drop miss V table frames */);
 447
 448                                 } else break;
 449                         }
 450                 } else
 451                 if (strcasecmp(argv[i], "show") == 0)
 452                 {
 453                         break;
 454                 } else {
 455                         fprintf(stderr, "Invalid option %s\n", argv[i]);
 456                         usage();
 457                         exit(1);
 458                 }
 459         }
 460
 461         if (i == argc) {
 462                 if (argc == 1) usage();
 463                 return 0;
 464         }
 465
 466         /* show config */
 467
 468         printf("Switch: %sabled\n", robo_read16(&robo, ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2 ? "en" : "dis");
 469
 470         for (i = 0; i < 6; i++) {
 471                 printf(robo_read16(&robo, ROBO_STAT_PAGE, ROBO_LINK_STAT_SUMMARY) & (1 << port[i]) ?
 472                         "Port %d(%c): %s%s " : "Port %d(%c):  DOWN ", i, ports[i],
 473                         robo_read16(&robo, ROBO_STAT_PAGE, ROBO_SPEED_STAT_SUMMARY) & (1 << port[i]) ? "100" : " 10",
 474                         robo_read16(&robo, ROBO_STAT_PAGE, ROBO_DUPLEX_STAT_SUMMARY) & (1 << port[i]) ? "FD" : "HD");
 475
 476                 val16 = robo_read16(&robo, ROBO_CTRL_PAGE, port[i]);
 477
 478                 printf("%s stp: %s vlan: %d ", rxtx[val16 & 3], stp[(val16 >> 5) & 7],
 479                         robo_read16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (i << 1)));
 480
 481                 robo_read(&robo, ROBO_STAT_PAGE, ROBO_LSA_PORT0 + port[i] * 6, mac, 3);
 482
 483                 printf("mac: %02x:%02x:%02x:%02x:%02x:%02x\n",
 484                         mac[2] >> 8, mac[2] & 255, mac[1] >> 8, mac[1] & 255, mac[0] >> 8, mac[0] & 255);
 485         }
 486
 487         val16 = robo_read16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0);
 488
 489         printf("VLANs: %s %sabled%s%s\n",
 490                 robo5350 ? "BCM5325/535x" : "BCM536x",
 491                 (val16 & (1 << 7)) ? "en" : "dis",
 492                 (val16 & (1 << 6)) ? " mac_check" : "",
 493                 (val16 & (1 << 5)) ? " mac_hash" : "");
 494
 495         /* scan VLANs */
 496         for (i = 0; i <= (robo5350 ? VLAN_ID_MAX5350 : VLAN_ID_MAX); i++) {
 497                 /* issue read */
 498                 val16 = (i) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
 499
 500                 if (robo5350) {
 501                         u32 val32;
 502                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 503                         /* actual read */
 504                         val32 = robo_read32(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 505                         if ((val32 & (1 << 20)) /* valid */) {
 506                                 printf("vlan%d:", i);
 507                                 for (j = 0; j < 6; j++) {
 508                                         if (val32 & (1 << j)) {
 509                                                 printf(" %d%s", j, (val32 & (1 << (j + 6))) ?
 510                                                         (j == 5 ? "u" : "") : "t");
 511                                         }
 512                                 }
 513                                 printf("\n");
 514                         }
 515                 } else {
 516                         robo_write16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 517                         /* actual read */
 518                         val16 = robo_read16(&robo, ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 519                         if ((val16 & (1 << 14)) /* valid */) {
 520                                 printf("vlan%d:", i);
 521                                 for (j = 0; j < 6; j++) {
 522                                         if (val16 & (1 << j)) {
 523                                                 printf(" %d%s", j, (val16 & (1 << (j + 7))) ?
 524                                                         (j == 5 ? "u" : "") : "t");
 525                                         }
 526                                 }
 527                                 printf("\n");
 528                         }
 529                 }
 530         }
 531
 532         return (0);
 533 }