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 #ifdef CONFIG_BCM47XX
  38 #include <nvram.h>
  39 #endif
  40
  41 #define DRIVER_NAME             "bcm53xx"
  42 #define DRIVER_VERSION          "0.02"
  43 #define PFX                     "roboswitch: "
  44
  45 #define ROBO_PHY_ADDR           0x1E    /* robo switch phy address */
  46 #define ROBO_PHY_ADDR_TG3       0x01    /* Tigon3 PHY address */
  47 #define ROBO_PHY_ADDR_BCM63XX   0x00    /* BCM63XX PHY address */
  48
  49 /* MII registers */
  50 #define REG_MII_PAGE    0x10    /* MII Page register */
  51 #define REG_MII_ADDR    0x11    /* MII Address register */
  52 #define REG_MII_DATA0   0x18    /* MII Data register 0 */
  53
  54 #define REG_MII_PAGE_ENABLE     1
  55 #define REG_MII_ADDR_WRITE      1
  56 #define REG_MII_ADDR_READ       2
  57
  58 /* Robo device ID register (in ROBO_MGMT_PAGE) */
  59 #define ROBO_DEVICE_ID          0x30
  60 #define  ROBO_DEVICE_ID_5325    0x25 /* Faked */
  61 #define  ROBO_DEVICE_ID_5395    0x95
  62 #define  ROBO_DEVICE_ID_5397    0x97
  63 #define  ROBO_DEVICE_ID_5398    0x98
  64 #define  ROBO_DEVICE_ID_53115   0x3115
  65
  66 /* Private et.o ioctls */
  67 #define SIOCGETCPHYRD           (SIOCDEVPRIVATE + 9)
  68 #define SIOCSETCPHYWR           (SIOCDEVPRIVATE + 10)
  69
  70 /* Data structure for a Roboswitch device. */
  71 struct robo_switch {
  72         char *device;                   /* The device name string (ethX) */
  73         u16 devid;                      /* ROBO_DEVICE_ID_53xx */
  74         bool use_et;
  75         bool is_5350;
  76         u8 phy_addr;                    /* PHY address of the device */
  77         struct ifreq ifr;
  78         struct net_device *dev;
  79         unsigned char port[6];
  80 };
  81
  82 /* Currently we can only have one device in the system. */
  83 static struct robo_switch robo;
  84
  85
  86 static int do_ioctl(int cmd, void *buf)
  87 {
  88         mm_segment_t old_fs = get_fs();
  89         int ret;
  90
  91         if (buf != NULL)
  92                 robo.ifr.ifr_data = (caddr_t) buf;
  93
  94         set_fs(KERNEL_DS);
  95 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
  96         ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
  97 #else
  98         ret = robo.dev->do_ioctl(robo.dev, &robo.ifr, cmd);
  99 #endif
 100         set_fs(old_fs);
 101
 102         return ret;
 103 }
 104
 105 static u16 mdio_read(__u16 phy_id, __u8 reg)
 106 {
 107         if (robo.use_et) {
 108                 int args[2] = { reg };
 109
 110                 if (phy_id != robo.phy_addr) {
 111                         printk(KERN_ERR PFX
 112                                 "Access to real 'phy' registers unavaliable.\n"
 113                                 "Upgrade kernel driver.\n");
 114
 115                         return 0xffff;
 116                 }
 117
 118
 119                 if (do_ioctl(SIOCGETCPHYRD, &args) < 0) {
 120                         printk(KERN_ERR PFX
 121                                "[%s:%d] SIOCGETCPHYRD failed!\n", __FILE__, __LINE__);
 122                         return 0xffff;
 123                 }
 124
 125                 return args[1];
 126         } else {
 127                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
 128                 mii->phy_id = phy_id;
 129                 mii->reg_num = reg;
 130
 131                 if (do_ioctl(SIOCGMIIREG, NULL) < 0) {
 132                         printk(KERN_ERR PFX
 133                                "[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
 134
 135                         return 0xffff;
 136                 }
 137
 138                 return mii->val_out;
 139         }
 140 }
 141
 142 static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
 143 {
 144         if (robo.use_et) {
 145                 int args[2] = { reg, val };
 146
 147                 if (phy_id != robo.phy_addr) {
 148                         printk(KERN_ERR PFX
 149                                 "Access to real 'phy' registers unavaliable.\n"
 150                                 "Upgrade kernel driver.\n");
 151
 152                         return;
 153                 }
 154
 155                 if (do_ioctl(SIOCSETCPHYWR, args) < 0) {
 156                         printk(KERN_ERR PFX
 157                                "[%s:%d] SIOCGETCPHYWR failed!\n", __FILE__, __LINE__);
 158                         return;
 159                 }
 160         } else {
 161                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&robo.ifr.ifr_data;
 162
 163                 mii->phy_id = phy_id;
 164                 mii->reg_num = reg;
 165                 mii->val_in = val;
 166
 167                 if (do_ioctl(SIOCSMIIREG, NULL) < 0) {
 168                         printk(KERN_ERR PFX
 169                                "[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
 170                         return;
 171                 }
 172         }
 173 }
 174
 175 static int robo_reg(__u8 page, __u8 reg, __u8 op)
 176 {
 177         int i = 3;
 178
 179         /* set page number */
 180         mdio_write(robo.phy_addr, REG_MII_PAGE,
 181                 (page << 8) | REG_MII_PAGE_ENABLE);
 182
 183         /* set register address */
 184         mdio_write(robo.phy_addr, REG_MII_ADDR,
 185                 (reg << 8) | op);
 186
 187         /* check if operation completed */
 188         while (i--) {
 189                 if ((mdio_read(robo.phy_addr, REG_MII_ADDR) & 3) == 0)
 190                         return 0;
 191         }
 192
 193         printk(KERN_ERR PFX "[%s:%d] timeout in robo_reg!\n", __FILE__, __LINE__);
 194
 195         return 0;
 196 }
 197
 198 /*
 199 static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
 200 {
 201         int i;
 202
 203         robo_reg(page, reg, REG_MII_ADDR_READ);
 204
 205         for (i = 0; i < count; i++)
 206                 val[i] = mdio_read(robo.phy_addr, REG_MII_DATA0 + i);
 207 }
 208 */
 209
 210 static __u16 robo_read16(__u8 page, __u8 reg)
 211 {
 212         robo_reg(page, reg, REG_MII_ADDR_READ);
 213
 214         return mdio_read(robo.phy_addr, REG_MII_DATA0);
 215 }
 216
 217 static __u32 robo_read32(__u8 page, __u8 reg)
 218 {
 219         robo_reg(page, reg, REG_MII_ADDR_READ);
 220
 221         return mdio_read(robo.phy_addr, REG_MII_DATA0) +
 222                 (mdio_read(robo.phy_addr, REG_MII_DATA0 + 1) << 16);
 223 }
 224
 225 static void robo_write16(__u8 page, __u8 reg, __u16 val16)
 226 {
 227         /* write data */
 228         mdio_write(robo.phy_addr, REG_MII_DATA0, val16);
 229
 230         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 231 }
 232
 233 static void robo_write32(__u8 page, __u8 reg, __u32 val32)
 234 {
 235         /* write data */
 236         mdio_write(robo.phy_addr, REG_MII_DATA0, val32 & 65535);
 237         mdio_write(robo.phy_addr, REG_MII_DATA0 + 1, val32 >> 16);
 238
 239         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 240 }
 241
 242 /* checks that attached switch is 5325E/5350 */
 243 static int robo_vlan5350(void)
 244 {
 245         /* set vlan access id to 15 and read it back */
 246         __u16 val16 = 15;
 247         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 248
 249         /* 5365 will refuse this as it does not have this reg */
 250         return (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
 251 }
 252
 253 static int robo_switch_enable(void)
 254 {
 255         unsigned int i, last_port;
 256         u16 val;
 257 #ifdef CONFIG_BCM47XX
 258         char buf[20];
 259 #endif
 260
 261         val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 262         if (!(val & (1 << 1))) {
 263                 /* Unmanaged mode */
 264                 val &= ~(1 << 0);
 265                 /* With forwarding */
 266                 val |= (1 << 1);
 267                 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
 268                 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 269                 if (!(val & (1 << 1))) {
 270                         printk("Failed to enable switch\n");
 271                         return -EBUSY;
 272                 }
 273
 274                 last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
 275                                 ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
 276                 for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
 277                         robo_write16(ROBO_CTRL_PAGE, i, 0);
 278         }
 279
 280 #ifdef CONFIG_BCM47XX
 281         /* WAN port LED, except for Netgear WGT634U */
 282         if (nvram_getenv("nvram_type", buf, sizeof(buf)) >= 0) {
 283                 if (strcmp(buf, "cfe") != 0)
 284                         robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
 285         }
 286 #endif
 287         return 0;
 288 }
 289
 290 static void robo_switch_reset(void)
 291 {
 292         if ((robo.devid == ROBO_DEVICE_ID_5395) ||
 293             (robo.devid == ROBO_DEVICE_ID_5397) ||
 294             (robo.devid == ROBO_DEVICE_ID_5398)) {
 295                 /* Trigger a software reset. */
 296                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
 297                 mdelay(500);
 298                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
 299         }
 300 }
 301
 302 static int robo_probe(char *devname)
 303 {
 304         __u32 phyid;
 305         unsigned int i;
 306         int err = 1;
 307
 308         printk(KERN_INFO PFX "Probing device %s: ", devname);
 309         strcpy(robo.ifr.ifr_name, devname);
 310
 311 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
 312         if ((robo.dev = dev_get_by_name(devname)) == NULL) {
 313 #else
 314         if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
 315 #endif
 316                 printk("No such device\n");
 317                 return 1;
 318         }
 319
 320         robo.device = devname;
 321         for (i = 0; i < 5; i++)
 322                 robo.port[i] = i;
 323         robo.port[5] = 8;
 324
 325         /* try access using MII ioctls - get phy address */
 326         if (do_ioctl(SIOCGMIIPHY, NULL) < 0) {
 327                 robo.use_et = 1;
 328                 robo.phy_addr = ROBO_PHY_ADDR;
 329         } else {
 330                 /* got phy address check for robo address */
 331                 struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
 332                 if ((mii->phy_id != ROBO_PHY_ADDR) &&
 333                     (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
 334                     (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
 335                         printk("Invalid phy address (%d)\n", mii->phy_id);
 336                         goto done;
 337                 }
 338                 robo.use_et = 0;
 339                 /* The robo has a fixed PHY address that is different from the
 340                  * Tigon3 and BCM63xx PHY address. */
 341                 robo.phy_addr = ROBO_PHY_ADDR;
 342         }
 343
 344         phyid = mdio_read(robo.phy_addr, 0x2) |
 345                 (mdio_read(robo.phy_addr, 0x3) << 16);
 346
 347         if (phyid == 0xffffffff || phyid == 0x55210022) {
 348                 printk("No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
 349                 goto done;
 350         }
 351
 352         /* Get the device ID */
 353         for (i = 0; i < 10; i++) {
 354                 robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
 355                 if (robo.devid)
 356                         break;
 357                 udelay(10);
 358         }
 359         if (!robo.devid)
 360                 robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
 361         robo.is_5350 = robo_vlan5350();
 362
 363         robo_switch_reset();
 364         err = robo_switch_enable();
 365         if (err)
 366                 goto done;
 367         err = 0;
 368
 369         printk("found a 5%s%x!%s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
 370                 robo.is_5350 ? " It's a 5350." : "");
 371
 372 done:
 373         if (err) {
 374                 dev_put(robo.dev);
 375                 robo.dev = NULL;
 376         }
 377         return err;
 378 }
 379
 380
 381 static int handle_vlan_port_read(void *driver, char *buf, int nr)
 382 {
 383         __u16 val16;
 384         int len = 0;
 385         int j;
 386
 387         val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
 388
 389         if (robo.is_5350) {
 390                 u32 val32;
 391                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 392                 /* actual read */
 393                 val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 394                 if ((val32 & (1 << 20)) /* valid */) {
 395                         for (j = 0; j < 6; j++) {
 396                                 if (val32 & (1 << j)) {
 397                                         len += sprintf(buf + len, "%d", j);
 398                                         if (val32 & (1 << (j + 6))) {
 399                                                 if (j == 5) buf[len++] = 'u';
 400                                         } else {
 401                                                 buf[len++] = 't';
 402                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 403                                                         buf[len++] = '*';
 404                                         }
 405                                         buf[len++] = '\t';
 406                                 }
 407                         }
 408                         len += sprintf(buf + len, "\n");
 409                 }
 410         } else {
 411                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 412                 /* actual read */
 413                 val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 414                 if ((val16 & (1 << 14)) /* valid */) {
 415                         for (j = 0; j < 6; j++) {
 416                                 if (val16 & (1 << j)) {
 417                                         len += sprintf(buf + len, "%d", j);
 418                                         if (val16 & (1 << (j + 7))) {
 419                                                 if (j == 5) buf[len++] = 'u';
 420                                         } else {
 421                                                 buf[len++] = 't';
 422                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 423                                                         buf[len++] = '*';
 424                                         }
 425                                         buf[len++] = '\t';
 426                                 }
 427                         }
 428                         len += sprintf(buf + len, "\n");
 429                 }
 430         }
 431
 432         buf[len] = '\0';
 433
 434         return len;
 435 }
 436
 437 static int handle_vlan_port_write(void *driver, char *buf, int nr)
 438 {
 439         switch_driver *d = (switch_driver *) driver;
 440         switch_vlan_config *c = switch_parse_vlan(d, buf);
 441         int j;
 442         __u16 val16;
 443
 444         if (c == NULL)
 445                 return -EINVAL;
 446
 447         for (j = 0; j < d->ports; j++) {
 448                 if ((c->untag | c->pvid) & (1 << j))
 449                         /* change default vlan tag */
 450                         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
 451         }
 452
 453         /* write config now */
 454
 455         if (robo.devid != ROBO_DEVICE_ID_5325) {
 456                 __u8 regoff = ((robo.devid == ROBO_DEVICE_ID_5395) ||
 457                         (robo.devid == ROBO_DEVICE_ID_53115)) ? 0x20 : 0;
 458
 459                 robo_write32(ROBO_ARLIO_PAGE, 0x63 + regoff, (c->untag << 9) | c->port);
 460                 robo_write16(ROBO_ARLIO_PAGE, 0x61 + regoff, nr);
 461                 robo_write16(ROBO_ARLIO_PAGE, 0x60 + regoff, 1 << 7);
 462                 kfree(c);
 463                 return 0;
 464         }
 465
 466         val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 467         if (robo.is_5350) {
 468                 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
 469                         (1 << 20) /* valid */ | (c->untag << 6) | c->port);
 470                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 471         } else {
 472                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
 473                         (1 << 14)  /* valid */ | (c->untag << 7) | c->port);
 474                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 475         }
 476
 477         kfree(c);
 478         return 0;
 479 }
 480
 481 #define set_switch(state) \
 482         robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
 483
 484 static int handle_enable_read(void *driver, char *buf, int nr)
 485 {
 486         return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
 487 }
 488
 489 static int handle_enable_write(void *driver, char *buf, int nr)
 490 {
 491         set_switch(buf[0] == '1');
 492
 493         return 0;
 494 }
 495
 496 static int handle_enable_vlan_read(void *driver, char *buf, int nr)
 497 {
 498         return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
 499 }
 500
 501 static int handle_enable_vlan_write(void *driver, char *buf, int nr)
 502 {
 503         int disable = ((buf[0] != '1') ? 1 : 0);
 504
 505         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
 506                 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
 507         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
 508                 (robo.devid == ROBO_DEVICE_ID_5325 ? (1 << 1) :
 509                 0) | (1 << 2) | (1 << 3)); /* RSV multicast */
 510
 511         if (robo.devid != ROBO_DEVICE_ID_5325)
 512                 return 0;
 513
 514         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
 515                 (1 << 6) /* drop invalid VID frames */);
 516         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
 517                 (1 << 3) /* drop miss V table frames */);
 518
 519         return 0;
 520 }
 521
 522 static int handle_reset(void *driver, char *buf, int nr)
 523 {
 524         switch_driver *d = (switch_driver *) driver;
 525         int j;
 526         __u16 val16;
 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);