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/module.h>
  25 #include <linux/init.h>
  26 #include <linux/if.h>
  27 #include <linux/if_arp.h>
  28 #include <linux/sockios.h>
  29 #include <linux/ethtool.h>
  30 #include <linux/mii.h>
  31 #include <linux/delay.h>
  32 #include <asm/uaccess.h>
  33
  34 #include "switch-core.h"
  35 #include "etc53xx.h"
  36
  37 #define DRIVER_NAME             "bcm53xx"
  38 #define DRIVER_VERSION          "0.02"
  39 #define PFX                     "roboswitch: "
  40
  41 #define ROBO_PHY_ADDR           0x1E    /* robo switch phy address */
  42 #define ROBO_PHY_ADDR_TG3       0x01    /* Tigon3 PHY address */
  43 #define ROBO_PHY_ADDR_BCM63XX   0x00    /* BCM63XX PHY address */
  44
  45 /* MII registers */
  46 #define REG_MII_PAGE    0x10    /* MII Page register */
  47 #define REG_MII_ADDR    0x11    /* MII Address register */
  48 #define REG_MII_DATA0   0x18    /* MII Data register 0 */
  49
  50 #define REG_MII_PAGE_ENABLE     1
  51 #define REG_MII_ADDR_WRITE      1
  52 #define REG_MII_ADDR_READ       2
  53
  54 /* Robo device ID register (in ROBO_MGMT_PAGE) */
  55 #define ROBO_DEVICE_ID          0x30
  56 #define  ROBO_DEVICE_ID_5325    0x25 /* Faked */
  57 #define  ROBO_DEVICE_ID_5395    0x95
  58 #define  ROBO_DEVICE_ID_5397    0x97
  59 #define  ROBO_DEVICE_ID_5398    0x98
  60 #define  ROBO_DEVICE_ID_53115   0x3115
  61
  62 /* Private et.o ioctls */
  63 #define SIOCGETCPHYRD           (SIOCDEVPRIVATE + 9)
  64 #define SIOCSETCPHYWR           (SIOCDEVPRIVATE + 10)
  65
  66 /* Only available on brcm47xx */
  67 #ifdef BROADCOM
  68 extern char *nvram_get(const char *name);
  69 #define getvar(str) (nvram_get(str)?:"")
  70 #else
  71 #define getvar(str) ""
  72 #endif
  73
  74 /* Data structure for a Roboswitch device. */
  75 struct robo_switch {
  76         char *device;                   /* The device name string (ethX) */
  77         u16 devid;                      /* ROBO_DEVICE_ID_53xx */
  78         bool use_et;
  79         bool is_5350;
  80         u8 phy_addr;                    /* PHY address of the device */
  81         struct ifreq ifr;
  82         struct net_device *dev;
  83         unsigned char port[6];
  84 };
  85
  86 /* Currently we can only have one device in the system. */
  87 static struct robo_switch robo;
  88
  89
  90 static int do_ioctl(int cmd, void *buf)
  91 {
  92         mm_segment_t old_fs = get_fs();
  93         int ret;
  94
  95         if (buf != NULL)
  96                 robo.ifr.ifr_data = (caddr_t) buf;
  97
  98         set_fs(KERNEL_DS);
  99 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
 100         ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
 101 #else
 102         ret = robo.dev->do_ioctl(robo.dev, &robo.ifr, cmd);
 103 #endif
 104         set_fs(old_fs);
 105
 106         return ret;
 107 }
 108
 109 static u16 mdio_read(__u16 phy_id, __u8 reg)
 110 {
 111         if (robo.use_et) {
 112                 int args[2] = { reg };
 113
 114                 if (phy_id != robo.phy_addr) {
 115                         printk(KERN_ERR PFX
 116                                 "Access to real 'phy' registers unavaliable.\n"
 117                                 "Upgrade kernel driver.\n");
 118
 119                         return 0xffff;
 120                 }
 121
 122
 123                 if (do_ioctl(SIOCGETCPHYRD, &args) < 0) {
 124                         printk(KERN_ERR PFX
 125                                "[%s:%d] SIOCGETCPHYRD failed!\n", __FILE__, __LINE__);
 126                         return 0xffff;
 127                 }
 128
 129                 return args[1];
 130         } else {
 131                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
 132                 mii->phy_id = phy_id;
 133                 mii->reg_num = reg;
 134
 135                 if (do_ioctl(SIOCGMIIREG, NULL) < 0) {
 136                         printk(KERN_ERR PFX
 137                                "[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
 138
 139                         return 0xffff;
 140                 }
 141
 142                 return mii->val_out;
 143         }
 144 }
 145
 146 static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
 147 {
 148         if (robo.use_et) {
 149                 int args[2] = { reg, val };
 150
 151                 if (phy_id != robo.phy_addr) {
 152                         printk(KERN_ERR PFX
 153                                 "Access to real 'phy' registers unavaliable.\n"
 154                                 "Upgrade kernel driver.\n");
 155
 156                         return;
 157                 }
 158
 159                 if (do_ioctl(SIOCSETCPHYWR, args) < 0) {
 160                         printk(KERN_ERR PFX
 161                                "[%s:%d] SIOCGETCPHYWR failed!\n", __FILE__, __LINE__);
 162                         return;
 163                 }
 164         } else {
 165                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&robo.ifr.ifr_data;
 166
 167                 mii->phy_id = phy_id;
 168                 mii->reg_num = reg;
 169                 mii->val_in = val;
 170
 171                 if (do_ioctl(SIOCSMIIREG, NULL) < 0) {
 172                         printk(KERN_ERR PFX
 173                                "[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
 174                         return;
 175                 }
 176         }
 177 }
 178
 179 static int robo_reg(__u8 page, __u8 reg, __u8 op)
 180 {
 181         int i = 3;
 182
 183         /* set page number */
 184         mdio_write(robo.phy_addr, REG_MII_PAGE,
 185                 (page << 8) | REG_MII_PAGE_ENABLE);
 186
 187         /* set register address */
 188         mdio_write(robo.phy_addr, REG_MII_ADDR,
 189                 (reg << 8) | op);
 190
 191         /* check if operation completed */
 192         while (i--) {
 193                 if ((mdio_read(robo.phy_addr, REG_MII_ADDR) & 3) == 0)
 194                         return 0;
 195         }
 196
 197         printk(KERN_ERR PFX "[%s:%d] timeout in robo_reg!\n", __FILE__, __LINE__);
 198
 199         return 0;
 200 }
 201
 202 /*
 203 static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
 204 {
 205         int i;
 206
 207         robo_reg(page, reg, REG_MII_ADDR_READ);
 208
 209         for (i = 0; i < count; i++)
 210                 val[i] = mdio_read(robo.phy_addr, REG_MII_DATA0 + i);
 211 }
 212 */
 213
 214 static __u16 robo_read16(__u8 page, __u8 reg)
 215 {
 216         robo_reg(page, reg, REG_MII_ADDR_READ);
 217
 218         return mdio_read(robo.phy_addr, REG_MII_DATA0);
 219 }
 220
 221 static __u32 robo_read32(__u8 page, __u8 reg)
 222 {
 223         robo_reg(page, reg, REG_MII_ADDR_READ);
 224
 225         return mdio_read(robo.phy_addr, REG_MII_DATA0) +
 226                 (mdio_read(robo.phy_addr, REG_MII_DATA0 + 1) << 16);
 227 }
 228
 229 static void robo_write16(__u8 page, __u8 reg, __u16 val16)
 230 {
 231         /* write data */
 232         mdio_write(robo.phy_addr, REG_MII_DATA0, val16);
 233
 234         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 235 }
 236
 237 static void robo_write32(__u8 page, __u8 reg, __u32 val32)
 238 {
 239         /* write data */
 240         mdio_write(robo.phy_addr, REG_MII_DATA0, val32 & 65535);
 241         mdio_write(robo.phy_addr, REG_MII_DATA0 + 1, val32 >> 16);
 242
 243         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 244 }
 245
 246 /* checks that attached switch is 5325E/5350 */
 247 static int robo_vlan5350(void)
 248 {
 249         /* set vlan access id to 15 and read it back */
 250         __u16 val16 = 15;
 251         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 252
 253         /* 5365 will refuse this as it does not have this reg */
 254         return (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
 255 }
 256
 257 static int robo_switch_enable(void)
 258 {
 259         unsigned int i, last_port;
 260         u16 val;
 261
 262         val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 263         if (!(val & (1 << 1))) {
 264                 /* Unmanaged mode */
 265                 val &= ~(1 << 0);
 266                 /* With forwarding */
 267                 val |= (1 << 1);
 268                 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
 269                 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 270                 if (!(val & (1 << 1))) {
 271                         printk("Failed to enable switch\n");
 272                         return -EBUSY;
 273                 }
 274
 275                 last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
 276                                 ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
 277                 for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
 278                         robo_write16(ROBO_CTRL_PAGE, i, 0);
 279         }
 280
 281         /* WAN port LED, except for Netgear WGT634U */
 282         if (strcmp(getvar("nvram_type"), "cfe") != 0)
 283                 robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
 284
 285         return 0;
 286 }
 287
 288 static void robo_switch_reset(void)
 289 {
 290         if ((robo.devid == ROBO_DEVICE_ID_5395) ||
 291             (robo.devid == ROBO_DEVICE_ID_5397) ||
 292             (robo.devid == ROBO_DEVICE_ID_5398)) {
 293                 /* Trigger a software reset. */
 294                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
 295                 mdelay(500);
 296                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
 297         }
 298 }
 299
 300 static int robo_probe(char *devname)
 301 {
 302         __u32 phyid;
 303         unsigned int i;
 304         int err = 1;
 305
 306         printk(KERN_INFO PFX "Probing device %s: ", devname);
 307         strcpy(robo.ifr.ifr_name, devname);
 308
 309 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
 310         if ((robo.dev = dev_get_by_name(devname)) == NULL) {
 311 #else
 312         if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
 313 #endif
 314                 printk("No such device\n");
 315                 return 1;
 316         }
 317
 318         robo.device = devname;
 319         for (i = 0; i < 5; i++)
 320                 robo.port[i] = i;
 321         robo.port[5] = 8;
 322
 323         /* try access using MII ioctls - get phy address */
 324         if (do_ioctl(SIOCGMIIPHY, NULL) < 0) {
 325                 robo.use_et = 1;
 326                 robo.phy_addr = ROBO_PHY_ADDR;
 327         } else {
 328                 /* got phy address check for robo address */
 329                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
 330                 if ((mii->phy_id != ROBO_PHY_ADDR) &&
 331                     (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
 332                     (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
 333                         printk("Invalid phy address (%d)\n", mii->phy_id);
 334                         goto done;
 335                 }
 336                 robo.use_et = 0;
 337                 /* The robo has a fixed PHY address that is different from the
 338                  * Tigon3 and BCM63xx PHY address. */
 339                 robo.phy_addr = ROBO_PHY_ADDR;
 340         }
 341
 342         phyid = mdio_read(robo.phy_addr, 0x2) |
 343                 (mdio_read(robo.phy_addr, 0x3) << 16);
 344
 345         if (phyid == 0xffffffff || phyid == 0x55210022) {
 346                 printk("No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
 347                 goto done;
 348         }
 349
 350         /* Get the device ID */
 351         for (i = 0; i < 10; i++) {
 352                 robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
 353                 if (robo.devid)
 354                         break;
 355                 udelay(10);
 356         }
 357         if (!robo.devid)
 358                 robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
 359         robo.is_5350 = robo_vlan5350();
 360
 361         robo_switch_reset();
 362         err = robo_switch_enable();
 363         if (err)
 364                 goto done;
 365         err = 0;
 366
 367         printk("found a 5%s%x!%s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
 368                 robo.is_5350 ? " It's a 5350." : "");
 369
 370 done:
 371         if (err) {
 372                 dev_put(robo.dev);
 373                 robo.dev = NULL;
 374         }
 375         return err;
 376 }
 377
 378
 379 static int handle_vlan_port_read(void *driver, char *buf, int nr)
 380 {
 381         __u16 val16;
 382         int len = 0;
 383         int j;
 384
 385         val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
 386
 387         if (robo.is_5350) {
 388                 u32 val32;
 389                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 390                 /* actual read */
 391                 val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 392                 if ((val32 & (1 << 20)) /* valid */) {
 393                         for (j = 0; j < 6; j++) {
 394                                 if (val32 & (1 << j)) {
 395                                         len += sprintf(buf + len, "%d", j);
 396                                         if (val32 & (1 << (j + 6))) {
 397                                                 if (j == 5) buf[len++] = 'u';
 398                                         } else {
 399                                                 buf[len++] = 't';
 400                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 401                                                         buf[len++] = '*';
 402                                         }
 403                                         buf[len++] = '\t';
 404                                 }
 405                         }
 406                         len += sprintf(buf + len, "\n");
 407                 }
 408         } else {
 409                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 410                 /* actual read */
 411                 val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 412                 if ((val16 & (1 << 14)) /* valid */) {
 413                         for (j = 0; j < 6; j++) {
 414                                 if (val16 & (1 << j)) {
 415                                         len += sprintf(buf + len, "%d", j);
 416                                         if (val16 & (1 << (j + 7))) {
 417                                                 if (j == 5) buf[len++] = 'u';
 418                                         } else {
 419                                                 buf[len++] = 't';
 420                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 421                                                         buf[len++] = '*';
 422                                         }
 423                                         buf[len++] = '\t';
 424                                 }
 425                         }
 426                         len += sprintf(buf + len, "\n");
 427                 }
 428         }
 429
 430         buf[len] = '\0';
 431
 432         return len;
 433 }
 434
 435 static int handle_vlan_port_write(void *driver, char *buf, int nr)
 436 {
 437         switch_driver *d = (switch_driver *) driver;
 438         switch_vlan_config *c = switch_parse_vlan(d, buf);
 439         int j;
 440         __u16 val16;
 441
 442         if (c == NULL)
 443                 return -EINVAL;
 444
 445         for (j = 0; j < d->ports; j++) {
 446                 if ((c->untag | c->pvid) & (1 << j))
 447                         /* change default vlan tag */
 448                         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
 449         }
 450
 451         /* write config now */
 452
 453         if (robo.devid != ROBO_DEVICE_ID_5325) {
 454                 __u8 regoff = ((robo.devid == ROBO_DEVICE_ID_5395) ||
 455                         (robo.devid == ROBO_DEVICE_ID_53115)) ? 0x20 : 0;
 456
 457                 robo_write32(ROBO_ARLIO_PAGE, 0x63 + regoff, (c->untag << 9) | c->port);
 458                 robo_write16(ROBO_ARLIO_PAGE, 0x61 + regoff, nr);
 459                 robo_write16(ROBO_ARLIO_PAGE, 0x60 + regoff, 1 << 7);
 460                 return 0;
 461         }
 462
 463         val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 464         if (robo.is_5350) {
 465                 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
 466                         (1 << 20) /* valid */ | (c->untag << 6) | c->port);
 467                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 468         } else {
 469                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
 470                         (1 << 14)  /* valid */ | (c->untag << 7) | c->port);
 471                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 472         }
 473
 474         return 0;
 475 }
 476
 477 #define set_switch(state) \
 478         robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
 479
 480 static int handle_enable_read(void *driver, char *buf, int nr)
 481 {
 482         return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
 483 }
 484
 485 static int handle_enable_write(void *driver, char *buf, int nr)
 486 {
 487         set_switch(buf[0] == '1');
 488
 489         return 0;
 490 }
 491
 492 static int handle_enable_vlan_read(void *driver, char *buf, int nr)
 493 {
 494         return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
 495 }
 496
 497 static int handle_enable_vlan_write(void *driver, char *buf, int nr)
 498 {
 499         int disable = ((buf[0] != '1') ? 1 : 0);
 500
 501         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
 502                 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
 503         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
 504                 (robo.devid == ROBO_DEVICE_ID_5325 ? (1 << 1) :
 505                 0) | (1 << 2) | (1 << 3)); /* RSV multicast */
 506
 507         if (robo.devid != ROBO_DEVICE_ID_5325)
 508                 return 0;
 509
 510         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
 511                 (1 << 6) /* drop invalid VID frames */);
 512         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
 513                 (1 << 3) /* drop miss V table frames */);
 514
 515         return 0;
 516 }
 517
 518 static int handle_reset(void *driver, char *buf, int nr)
 519 {
 520         switch_driver *d = (switch_driver *) driver;
 521         switch_vlan_config *c = switch_parse_vlan(d, buf);
 522         int j;
 523         __u16 val16;
 524
 525         if (c == NULL)
 526                 return -EINVAL;
 527
 528         /* disable switching */
 529         set_switch(0);
 530
 531         /* reset vlans */
 532         for (j = 0; j <= ((robo.is_5350) ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
 533                 /* write config now */
 534                 val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 535                 if (robo.is_5350)
 536                         robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350, 0);
 537                 else
 538                         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
 539                 robo_write16(ROBO_VLAN_PAGE, robo.is_5350 ? ROBO_VLAN_TABLE_ACCESS_5350 :
 540                                                             ROBO_VLAN_TABLE_ACCESS,
 541                              val16);
 542         }
 543
 544         /* reset ports to a known good state */
 545         for (j = 0; j < d->ports; j++) {
 546                 robo_write16(ROBO_CTRL_PAGE, robo.port[j], 0x0000);
 547                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
 548         }
 549
 550         /* enable switching */
 551         set_switch(1);
 552
 553         /* enable vlans */
 554         handle_enable_vlan_write(driver, "1", 0);
 555
 556         return 0;
 557 }
 558
 559 static int __init robo_init(void)
 560 {
 561         int notfound = 1;
 562         char *device;
 563
 564         device = strdup("ethX");
 565         for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
 566                 if (! switch_device_registered (device))
 567                         notfound = robo_probe(device);
 568         }
 569         device[3]--;
 570
 571         if (notfound) {
 572                 kfree(device);
 573                 return -ENODEV;
 574         } else {
 575                 static const switch_config cfg[] = {
 576                         {
 577                                 .name   = "enable",
 578                                 .read   = handle_enable_read,
 579                                 .write  = handle_enable_write
 580                         }, {
 581                                 .name   = "enable_vlan",
 582                                 .read   = handle_enable_vlan_read,
 583                                 .write  = handle_enable_vlan_write
 584                         }, {
 585                                 .name   = "reset",
 586                                 .read   = NULL,
 587                                 .write  = handle_reset
 588                         }, { NULL, },
 589                 };
 590                 static const switch_config vlan[] = {
 591                         {
 592                                 .name   = "ports",
 593                                 .read   = handle_vlan_port_read,
 594                                 .write  = handle_vlan_port_write
 595                         }, { NULL, },
 596                 };
 597                 switch_driver driver = {
 598                         .name                   = DRIVER_NAME,
 599                         .version                = DRIVER_VERSION,
 600                         .interface              = device,
 601                         .cpuport                = 5,
 602                         .ports                  = 6,
 603                         .vlans                  = 16,
 604                         .driver_handlers        = cfg,
 605                         .port_handlers          = NULL,
 606                         .vlan_handlers          = vlan,
 607                 };
 608                 if (robo.devid != ROBO_DEVICE_ID_5325) {
 609                         driver.ports = 9;
 610                         driver.cpuport = 8;
 611                 }
 612
 613                 return switch_register_driver(&driver);
 614         }
 615 }
 616
 617 static void __exit robo_exit(void)
 618 {
 619         switch_unregister_driver(DRIVER_NAME);
 620         if (robo.dev)
 621                 dev_put(robo.dev);
 622         kfree(robo.device);
 623 }
 624
 625
 626 MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
 627 MODULE_LICENSE("GPL");
 628
 629 module_init(robo_init);
 630 module_exit(robo_exit);