package/switch/src/switch-robo.c

   1 /*
   2  * Broadcom BCM5325E/536x switch configuration module
   3  *
   4  * Copyright (C) 2005 Felix Fietkau <nbd@nbd.name>
   5  * Copyright (C) 2008 Michael Buesch <mb@bu3sch.de>
   6  * Based on 'robocfg' by Oleg I. Vdovikin
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21  * 02110-1301, USA.
  22  */
  23
  24 #include <linux/autoconf.h>
  25 #include <linux/module.h>
  26 #include <linux/init.h>
  27 #include <linux/if.h>
  28 #include <linux/if_arp.h>
  29 #include <linux/sockios.h>
  30 #include <linux/ethtool.h>
  31 #include <linux/mii.h>
  32 #include <linux/delay.h>
  33 #include <asm/uaccess.h>
  34
  35 #include "switch-core.h"
  36 #include "etc53xx.h"
  37
  38 #define DRIVER_NAME             "bcm53xx"
  39 #define DRIVER_VERSION          "0.02"
  40 #define PFX                     "roboswitch: "
  41
  42 #define ROBO_PHY_ADDR           0x1E    /* robo switch phy address */
  43 #define ROBO_PHY_ADDR_TG3       0x01    /* Tigon3 PHY address */
  44 #define ROBO_PHY_ADDR_BCM63XX   0x00    /* BCM63XX PHY address */
  45
  46 /* MII registers */
  47 #define REG_MII_PAGE    0x10    /* MII Page register */
  48 #define REG_MII_ADDR    0x11    /* MII Address register */
  49 #define REG_MII_DATA0   0x18    /* MII Data register 0 */
  50
  51 #define REG_MII_PAGE_ENABLE     1
  52 #define REG_MII_ADDR_WRITE      1
  53 #define REG_MII_ADDR_READ       2
  54
  55 /* Robo device ID register (in ROBO_MGMT_PAGE) */
  56 #define ROBO_DEVICE_ID          0x30
  57 #define  ROBO_DEVICE_ID_5325    0x25 /* Faked */
  58 #define  ROBO_DEVICE_ID_5395    0x95
  59 #define  ROBO_DEVICE_ID_5397    0x97
  60 #define  ROBO_DEVICE_ID_5398    0x98
  61
  62 /* Private et.o ioctls */
  63 #define SIOCGETCPHYRD           (SIOCDEVPRIVATE + 9)
  64 #define SIOCSETCPHYWR           (SIOCDEVPRIVATE + 10)
  65
  66 /* linux 2.4 does not have 'bool' */
  67 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
  68 #define bool int
  69 #endif
  70
  71 /* Only available on brcm-2.4/brcm47xx */
  72 #ifdef BROADCOM
  73 extern char *nvram_get(const char *name);
  74 #define getvar(str) (nvram_get(str)?:"")
  75 #else
  76 #define getvar(str) ""
  77 #endif
  78
  79 /* Data structure for a Roboswitch device. */
  80 struct robo_switch {
  81         char *device;                   /* The device name string (ethX) */
  82         u16 devid;                      /* ROBO_DEVICE_ID_53xx */
  83         bool use_et;
  84         bool is_5350;
  85         u8 phy_addr;                    /* PHY address of the device */
  86         struct ifreq ifr;
  87         struct net_device *dev;
  88         unsigned char port[6];
  89 };
  90
  91 /* Currently we can only have one device in the system. */
  92 static struct robo_switch robo;
  93
  94
  95 static int do_ioctl(int cmd, void *buf)
  96 {
  97         mm_segment_t old_fs = get_fs();
  98         int ret;
  99
 100         if (buf != NULL)
 101                 robo.ifr.ifr_data = (caddr_t) buf;
 102
 103         set_fs(KERNEL_DS);
 104 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
 105         ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
 106 #else
 107         ret = robo.dev->do_ioctl(robo.dev, &robo.ifr, cmd);
 108 #endif
 109         set_fs(old_fs);
 110
 111         return ret;
 112 }
 113
 114 static u16 mdio_read(__u16 phy_id, __u8 reg)
 115 {
 116         if (robo.use_et) {
 117                 int args[2] = { reg };
 118
 119                 if (phy_id != robo.phy_addr) {
 120                         printk(KERN_ERR PFX
 121                                 "Access to real 'phy' registers unavaliable.\n"
 122                                 "Upgrade kernel driver.\n");
 123
 124                         return 0xffff;
 125                 }
 126
 127
 128                 if (do_ioctl(SIOCGETCPHYRD, &args) < 0) {
 129                         printk(KERN_ERR PFX
 130                                "[%s:%d] SIOCGETCPHYRD failed!\n", __FILE__, __LINE__);
 131                         return 0xffff;
 132                 }
 133
 134                 return args[1];
 135         } else {
 136                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
 137                 mii->phy_id = phy_id;
 138                 mii->reg_num = reg;
 139
 140                 if (do_ioctl(SIOCGMIIREG, NULL) < 0) {
 141                         printk(KERN_ERR PFX
 142                                "[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
 143
 144                         return 0xffff;
 145                 }
 146
 147                 return mii->val_out;
 148         }
 149 }
 150
 151 static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
 152 {
 153         if (robo.use_et) {
 154                 int args[2] = { reg, val };
 155
 156                 if (phy_id != robo.phy_addr) {
 157                         printk(KERN_ERR PFX
 158                                 "Access to real 'phy' registers unavaliable.\n"
 159                                 "Upgrade kernel driver.\n");
 160
 161                         return;
 162                 }
 163
 164                 if (do_ioctl(SIOCSETCPHYWR, args) < 0) {
 165                         printk(KERN_ERR PFX
 166                                "[%s:%d] SIOCGETCPHYWR failed!\n", __FILE__, __LINE__);
 167                         return;
 168                 }
 169         } else {
 170                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&robo.ifr.ifr_data;
 171
 172                 mii->phy_id = phy_id;
 173                 mii->reg_num = reg;
 174                 mii->val_in = val;
 175
 176                 if (do_ioctl(SIOCSMIIREG, NULL) < 0) {
 177                         printk(KERN_ERR PFX
 178                                "[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
 179                         return;
 180                 }
 181         }
 182 }
 183
 184 static int robo_reg(__u8 page, __u8 reg, __u8 op)
 185 {
 186         int i = 3;
 187
 188         /* set page number */
 189         mdio_write(robo.phy_addr, REG_MII_PAGE,
 190                 (page << 8) | REG_MII_PAGE_ENABLE);
 191
 192         /* set register address */
 193         mdio_write(robo.phy_addr, REG_MII_ADDR,
 194                 (reg << 8) | op);
 195
 196         /* check if operation completed */
 197         while (i--) {
 198                 if ((mdio_read(robo.phy_addr, REG_MII_ADDR) & 3) == 0)
 199                         return 0;
 200         }
 201
 202         printk(KERN_ERR PFX "[%s:%d] timeout in robo_reg!\n", __FILE__, __LINE__);
 203
 204         return 0;
 205 }
 206
 207 /*
 208 static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
 209 {
 210         int i;
 211
 212         robo_reg(page, reg, REG_MII_ADDR_READ);
 213
 214         for (i = 0; i < count; i++)
 215                 val[i] = mdio_read(robo.phy_addr, REG_MII_DATA0 + i);
 216 }
 217 */
 218
 219 static __u16 robo_read16(__u8 page, __u8 reg)
 220 {
 221         robo_reg(page, reg, REG_MII_ADDR_READ);
 222
 223         return mdio_read(robo.phy_addr, REG_MII_DATA0);
 224 }
 225
 226 static __u32 robo_read32(__u8 page, __u8 reg)
 227 {
 228         robo_reg(page, reg, REG_MII_ADDR_READ);
 229
 230         return mdio_read(robo.phy_addr, REG_MII_DATA0) +
 231                 (mdio_read(robo.phy_addr, REG_MII_DATA0 + 1) << 16);
 232 }
 233
 234 static void robo_write16(__u8 page, __u8 reg, __u16 val16)
 235 {
 236         /* write data */
 237         mdio_write(robo.phy_addr, REG_MII_DATA0, val16);
 238
 239         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 240 }
 241
 242 static void robo_write32(__u8 page, __u8 reg, __u32 val32)
 243 {
 244         /* write data */
 245         mdio_write(robo.phy_addr, REG_MII_DATA0, val32 & 65535);
 246         mdio_write(robo.phy_addr, REG_MII_DATA0 + 1, val32 >> 16);
 247
 248         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 249 }
 250
 251 /* checks that attached switch is 5325E/5350 */
 252 static int robo_vlan5350(void)
 253 {
 254         /* set vlan access id to 15 and read it back */
 255         __u16 val16 = 15;
 256         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 257
 258         /* 5365 will refuse this as it does not have this reg */
 259         return (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
 260 }
 261
 262 static int robo_switch_enable(void)
 263 {
 264         unsigned int i, last_port;
 265         u16 val;
 266
 267         val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 268         if (!(val & (1 << 1))) {
 269                 /* Unmanaged mode */
 270                 val &= ~(1 << 0);
 271                 /* With forwarding */
 272                 val |= (1 << 1);
 273                 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
 274                 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 275                 if (!(val & (1 << 1))) {
 276                         printk("Failed to enable switch\n");
 277                         return -EBUSY;
 278                 }
 279
 280                 last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
 281                                 ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
 282                 for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
 283                         robo_write16(ROBO_CTRL_PAGE, i, 0);
 284         }
 285
 286         /* WAN port LED, except for Netgear WGT634U */
 287         if (strcmp(getvar("nvram_type"), "cfe") != 0)
 288                 robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
 289
 290         return 0;
 291 }
 292
 293 static void robo_switch_reset(void)
 294 {
 295         if ((robo.devid == ROBO_DEVICE_ID_5395) ||
 296             (robo.devid == ROBO_DEVICE_ID_5397) ||
 297             (robo.devid == ROBO_DEVICE_ID_5398)) {
 298                 /* Trigger a software reset. */
 299                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
 300                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
 301         }
 302 }
 303
 304 static int robo_probe(char *devname)
 305 {
 306         __u32 phyid;
 307         unsigned int i;
 308         int err;
 309
 310         printk(KERN_INFO PFX "Probing device %s: ", devname);
 311         strcpy(robo.ifr.ifr_name, devname);
 312
 313 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
 314         if ((robo.dev = dev_get_by_name(devname)) == NULL) {
 315 #else
 316         if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
 317 #endif
 318                 printk("No such device\n");
 319                 return 1;
 320         }
 321
 322         robo.device = devname;
 323         for (i = 0; i < 5; i++)
 324                 robo.port[i] = i;
 325         robo.port[5] = 8;
 326
 327         /* try access using MII ioctls - get phy address */
 328         if (do_ioctl(SIOCGMIIPHY, NULL) < 0) {
 329                 robo.use_et = 1;
 330                 robo.phy_addr = ROBO_PHY_ADDR;
 331         } else {
 332                 /* got phy address check for robo address */
 333                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
 334                 if ((mii->phy_id != ROBO_PHY_ADDR) &&
 335                     (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
 336                     (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
 337                         printk("Invalid phy address (%d)\n", mii->phy_id);
 338                         return 1;
 339                 }
 340                 robo.use_et = 0;
 341                 /* The robo has a fixed PHY address that is different from the
 342                  * Tigon3 and BCM63xx PHY address. */
 343                 robo.phy_addr = ROBO_PHY_ADDR;
 344         }
 345
 346         phyid = mdio_read(robo.phy_addr, 0x2) |
 347                 (mdio_read(robo.phy_addr, 0x3) << 16);
 348
 349         if (phyid == 0xffffffff || phyid == 0x55210022) {
 350                 printk("No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
 351                 return 1;
 352         }
 353
 354         /* Get the device ID */
 355         for (i = 0; i < 10; i++) {
 356                 robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
 357                 if (robo.devid)
 358                         break;
 359                 udelay(10);
 360         }
 361         if (!robo.devid)
 362                 robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
 363         robo.is_5350 = robo_vlan5350();
 364
 365         robo_switch_reset();
 366         err = robo_switch_enable();
 367         if (err)
 368                 return err;
 369
 370         printk("found!\n");
 371         return 0;
 372 }
 373
 374
 375 static int handle_vlan_port_read(void *driver, char *buf, int nr)
 376 {
 377         __u16 val16;
 378         int len = 0;
 379         int j;
 380
 381         val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
 382
 383         if (robo.is_5350) {
 384                 u32 val32;
 385                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 386                 /* actual read */
 387                 val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 388                 if ((val32 & (1 << 20)) /* valid */) {
 389                         for (j = 0; j < 6; j++) {
 390                                 if (val32 & (1 << j)) {
 391                                         len += sprintf(buf + len, "%d", j);
 392                                         if (val32 & (1 << (j + 6))) {
 393                                                 if (j == 5) buf[len++] = 'u';
 394                                         } else {
 395                                                 buf[len++] = 't';
 396                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 397                                                         buf[len++] = '*';
 398                                         }
 399                                         buf[len++] = '\t';
 400                                 }
 401                         }
 402                         len += sprintf(buf + len, "\n");
 403                 }
 404         } else {
 405                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 406                 /* actual read */
 407                 val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 408                 if ((val16 & (1 << 14)) /* valid */) {
 409                         for (j = 0; j < 6; j++) {
 410                                 if (val16 & (1 << j)) {
 411                                         len += sprintf(buf + len, "%d", j);
 412                                         if (val16 & (1 << (j + 7))) {
 413                                                 if (j == 5) buf[len++] = 'u';
 414                                         } else {
 415                                                 buf[len++] = 't';
 416                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 417                                                         buf[len++] = '*';
 418                                         }
 419                                         buf[len++] = '\t';
 420                                 }
 421                         }
 422                         len += sprintf(buf + len, "\n");
 423                 }
 424         }
 425
 426         buf[len] = '\0';
 427
 428         return len;
 429 }
 430
 431 static int handle_vlan_port_write(void *driver, char *buf, int nr)
 432 {
 433         switch_driver *d = (switch_driver *) driver;
 434         switch_vlan_config *c = switch_parse_vlan(d, buf);
 435         int j;
 436         __u16 val16;
 437
 438         if (c == NULL)
 439                 return -EINVAL;
 440
 441         for (j = 0; j < d->ports; j++) {
 442                 if ((c->untag | c->pvid) & (1 << j))
 443                         /* change default vlan tag */
 444                         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
 445         }
 446
 447         /* write config now */
 448         val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 449         if (robo.is_5350) {
 450                 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
 451                         (1 << 20) /* valid */ | (c->untag << 6) | c->port);
 452                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 453         } else {
 454                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
 455                         (1 << 14)  /* valid */ | (c->untag << 7) | c->port);
 456                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 457         }
 458
 459         return 0;
 460 }
 461
 462 #define set_switch(state) \
 463         robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
 464
 465 static int handle_enable_read(void *driver, char *buf, int nr)
 466 {
 467         return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
 468 }
 469
 470 static int handle_enable_write(void *driver, char *buf, int nr)
 471 {
 472         set_switch(buf[0] == '1');
 473
 474         return 0;
 475 }
 476
 477 static int handle_enable_vlan_read(void *driver, char *buf, int nr)
 478 {
 479         return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
 480 }
 481
 482 static int handle_enable_vlan_write(void *driver, char *buf, int nr)
 483 {
 484         int disable = ((buf[0] != '1') ? 1 : 0);
 485
 486         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
 487                 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
 488         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
 489                 (1 << 1) | (1 << 2) | (1 << 3) /* RSV multicast */);
 490         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
 491                 (1 << 6) /* drop invalid VID frames */);
 492         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
 493                 (1 << 3) /* drop miss V table frames */);
 494
 495         return 0;
 496 }
 497
 498 static int handle_reset(void *driver, char *buf, int nr)
 499 {
 500         switch_driver *d = (switch_driver *) driver;
 501         switch_vlan_config *c = switch_parse_vlan(d, buf);
 502         int j;
 503         __u16 val16;
 504
 505         if (c == NULL)
 506                 return -EINVAL;
 507
 508         /* disable switching */
 509         set_switch(0);
 510
 511         /* reset vlans */
 512         for (j = 0; j <= ((robo.is_5350) ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
 513                 /* write config now */
 514                 val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 515                 if (robo.is_5350)
 516                         robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350, 0);
 517                 else
 518                         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
 519                 robo_write16(ROBO_VLAN_PAGE, robo.is_5350 ? ROBO_VLAN_TABLE_ACCESS_5350 :
 520                                                             ROBO_VLAN_TABLE_ACCESS,
 521                              val16);
 522         }
 523
 524         /* reset ports to a known good state */
 525         for (j = 0; j < d->ports; j++) {
 526                 robo_write16(ROBO_CTRL_PAGE, robo.port[j], 0x0000);
 527                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
 528         }
 529
 530         /* enable switching */
 531         set_switch(1);
 532
 533         /* enable vlans */
 534         handle_enable_vlan_write(driver, "1", 0);
 535
 536         return 0;
 537 }
 538
 539 static int __init robo_init(void)
 540 {
 541         int notfound = 1;
 542         char *device;
 543
 544         device = strdup("ethX");
 545         for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
 546                 if (! switch_device_registered (device))
 547                         notfound = robo_probe(device);
 548         }
 549         device[3]--;
 550
 551         if (notfound) {
 552                 kfree(device);
 553                 return -ENODEV;
 554         } else {
 555                 static const switch_config cfg[] = {
 556                         {
 557                                 .name   = "enable",
 558                                 .read   = handle_enable_read,
 559                                 .write  = handle_enable_write
 560                         }, {
 561                                 .name   = "enable_vlan",
 562                                 .read   = handle_enable_vlan_read,
 563                                 .write  = handle_enable_vlan_write
 564                         }, {
 565                                 .name   = "reset",
 566                                 .read   = NULL,
 567                                 .write  = handle_reset
 568                         }, { NULL, },
 569                 };
 570                 static const switch_config vlan[] = {
 571                         {
 572                                 .name   = "ports",
 573                                 .read   = handle_vlan_port_read,
 574                                 .write  = handle_vlan_port_write
 575                         }, { NULL, },
 576                 };
 577                 switch_driver driver = {
 578                         .name                   = DRIVER_NAME,
 579                         .version                = DRIVER_VERSION,
 580                         .interface              = device,
 581                         .cpuport                = 5,
 582                         .ports                  = 6,
 583                         .vlans                  = 16,
 584                         .driver_handlers        = cfg,
 585                         .port_handlers          = NULL,
 586                         .vlan_handlers          = vlan,
 587                 };
 588
 589                 return switch_register_driver(&driver);
 590         }
 591 }
 592
 593 static void __exit robo_exit(void)
 594 {
 595         switch_unregister_driver(DRIVER_NAME);
 596         kfree(robo.device);
 597 }
 598
 599
 600 MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
 601 MODULE_LICENSE("GPL");
 602
 603 module_init(robo_init);
 604 module_exit(robo_exit);