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 <bcm47xx_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 is_5350;
  75         u8 gmii;                        /* gigabit mii */
  76         struct ifreq ifr;
  77         struct net_device *dev;
  78         unsigned char port[6];
  79 };
  80
  81 /* Currently we can only have one device in the system. */
  82 static struct robo_switch robo;
  83
  84
  85 static int do_ioctl(int cmd)
  86 {
  87         mm_segment_t old_fs = get_fs();
  88         int ret;
  89
  90         set_fs(KERNEL_DS);
  91         ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
  92         set_fs(old_fs);
  93
  94         return ret;
  95 }
  96
  97 static u16 mdio_read(__u16 phy_id, __u8 reg)
  98 {
  99         struct mii_ioctl_data *mii = if_mii(&robo.ifr);
 100         int err;
 101
 102         mii->phy_id = phy_id;
 103         mii->reg_num = reg;
 104
 105         err = do_ioctl(SIOCGMIIREG);
 106         if (err < 0) {
 107                 printk(KERN_ERR PFX "failed to read mdio reg %i with err %i.\n", reg, err);
 108
 109                 return 0xffff;
 110         }
 111
 112         return mii->val_out;
 113 }
 114
 115 static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
 116 {
 117         struct mii_ioctl_data *mii = if_mii(&robo.ifr);
 118         int err;
 119
 120         mii->phy_id = phy_id;
 121         mii->reg_num = reg;
 122         mii->val_in = val;
 123
 124         err = do_ioctl(SIOCSMIIREG);
 125         if (err < 0) {
 126                 printk(KERN_ERR PFX "failed to write mdio reg: %i with err %i.\n", reg, err);
 127                 return;
 128         }
 129 }
 130
 131 static int robo_reg(__u8 page, __u8 reg, __u8 op)
 132 {
 133         int i = 3;
 134
 135         /* set page number */
 136         mdio_write(ROBO_PHY_ADDR, REG_MII_PAGE,
 137                 (page << 8) | REG_MII_PAGE_ENABLE);
 138
 139         /* set register address */
 140         mdio_write(ROBO_PHY_ADDR, REG_MII_ADDR,
 141                 (reg << 8) | op);
 142
 143         /* check if operation completed */
 144         while (i--) {
 145                 if ((mdio_read(ROBO_PHY_ADDR, REG_MII_ADDR) & 3) == 0)
 146                         return 0;
 147         }
 148
 149         printk(KERN_ERR PFX "timeout in robo_reg on page %i and reg %i with op %i.\n", page, reg, op);
 150
 151         return 1;
 152 }
 153
 154 /*
 155 static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
 156 {
 157         int i;
 158
 159         robo_reg(page, reg, REG_MII_ADDR_READ);
 160
 161         for (i = 0; i < count; i++)
 162                 val[i] = mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + i);
 163 }
 164 */
 165
 166 static __u16 robo_read16(__u8 page, __u8 reg)
 167 {
 168         robo_reg(page, reg, REG_MII_ADDR_READ);
 169
 170         return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0);
 171 }
 172
 173 static __u32 robo_read32(__u8 page, __u8 reg)
 174 {
 175         robo_reg(page, reg, REG_MII_ADDR_READ);
 176
 177         return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) |
 178                 (mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
 179 }
 180
 181 static void robo_write16(__u8 page, __u8 reg, __u16 val16)
 182 {
 183         /* write data */
 184         mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val16);
 185
 186         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 187 }
 188
 189 static void robo_write32(__u8 page, __u8 reg, __u32 val32)
 190 {
 191         /* write data */
 192         mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 0xFFFF);
 193         mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
 194
 195         robo_reg(page, reg, REG_MII_ADDR_WRITE);
 196 }
 197
 198 /* checks that attached switch is 5325/5352/5354/5356/5357/53115 */
 199 static int robo_vlan5350(__u32 phyid)
 200 {
 201         /* set vlan access id to 15 and read it back */
 202         __u16 val16 = 15;
 203         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 204
 205         /* 5365 will refuse this as it does not have this reg */
 206         if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) != val16)
 207                 return 0;
 208         /* gigabit ? */
 209         if (mdio_read(0, ROBO_MII_STAT) & 0x0100)
 210                 robo.gmii = ((mdio_read(0, 0x0f) & 0xf000) != 0);
 211         /* 53115 ? */
 212         if (robo.gmii && robo_read32(ROBO_STAT_PAGE, ROBO_LSA_IM_PORT) != 0) {
 213                 robo_write16(ROBO_ARLIO_PAGE, ROBO_VTBL_INDX_5395, val16);
 214                 robo_write16(ROBO_ARLIO_PAGE, ROBO_VTBL_ACCESS_5395,
 215                                          (1 << 7) /* start */ | 1 /* read */);
 216                 if (robo_read16(ROBO_ARLIO_PAGE, ROBO_VTBL_ACCESS_5395) == 1 &&
 217                     robo_read16(ROBO_ARLIO_PAGE, ROBO_VTBL_INDX_5395) == val16)
 218                         return 4;
 219         }
 220         /* dirty trick for 5356/5357 */
 221         if ((phyid & 0xfff0ffff ) == 0x5da00362 ||
 222             (phyid & 0xfff0ffff ) == 0x5e000362)
 223                 return 3;
 224         /* 5325/5352/5354*/
 225         return 1;
 226 }
 227
 228 static int robo_switch_enable(void)
 229 {
 230         unsigned int i, last_port;
 231         u16 val;
 232 #ifdef CONFIG_BCM47XX
 233         char buf[20];
 234 #endif
 235
 236         val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 237         if (!(val & (1 << 1))) {
 238                 /* Unmanaged mode */
 239                 val &= ~(1 << 0);
 240                 /* With forwarding */
 241                 val |= (1 << 1);
 242                 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
 243                 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
 244                 if (!(val & (1 << 1))) {
 245                         printk(KERN_ERR PFX "Failed to enable switch\n");
 246                         return -EBUSY;
 247                 }
 248
 249                 last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
 250                                 ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
 251                 for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
 252                         robo_write16(ROBO_CTRL_PAGE, i, 0);
 253         }
 254
 255 #ifdef CONFIG_BCM47XX
 256         /* WAN port LED, except for Netgear WGT634U */
 257         if (bcm47xx_nvram_getenv("nvram_type", buf, sizeof(buf)) >= 0) {
 258                 if (strcmp(buf, "cfe") != 0)
 259                         robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
 260         }
 261 #endif
 262         return 0;
 263 }
 264
 265 static void robo_switch_reset(void)
 266 {
 267         if ((robo.devid == ROBO_DEVICE_ID_5395) ||
 268             (robo.devid == ROBO_DEVICE_ID_5397) ||
 269             (robo.devid == ROBO_DEVICE_ID_5398)) {
 270                 /* Trigger a software reset. */
 271                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
 272                 mdelay(500);
 273                 robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
 274         }
 275 }
 276
 277 static int robo_probe(char *devname)
 278 {
 279         __u32 phyid;
 280         unsigned int i;
 281         int err = -1;
 282         struct mii_ioctl_data *mii;
 283
 284         printk(KERN_INFO PFX "Probing device '%s'\n", devname);
 285         strcpy(robo.ifr.ifr_name, devname);
 286
 287         if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
 288                 printk(KERN_ERR PFX "No such device\n");
 289                 err = -ENODEV;
 290                 goto err_done;
 291         }
 292         if (!robo.dev->netdev_ops || !robo.dev->netdev_ops->ndo_do_ioctl) {
 293                 printk(KERN_ERR PFX "ndo_do_ioctl not implemented in ethernet driver\n");
 294                 err = -ENXIO;
 295                 goto err_put;
 296         }
 297
 298         robo.device = devname;
 299         for (i = 0; i < 5; i++)
 300                 robo.port[i] = i;
 301         robo.port[5] = 8;
 302
 303         /* try access using MII ioctls - get phy address */
 304         err = do_ioctl(SIOCGMIIPHY);
 305         if (err < 0) {
 306                 printk(KERN_ERR PFX "error (%i) while accessing MII phy registers with ioctls\n", err);
 307                 goto err_put;
 308         }
 309
 310         /* got phy address check for robo address */
 311         mii = if_mii(&robo.ifr);
 312         if ((mii->phy_id != ROBO_PHY_ADDR) &&
 313             (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
 314             (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
 315                 printk(KERN_ERR PFX "Invalid phy address (%d)\n", mii->phy_id);
 316                 err = -ENODEV;
 317                 goto err_put;
 318         }
 319
 320         phyid = mdio_read(ROBO_PHY_ADDR, 0x2) |
 321                 (mdio_read(ROBO_PHY_ADDR, 0x3) << 16);
 322
 323         if (phyid == 0xffffffff || phyid == 0x55210022) {
 324                 printk(KERN_ERR PFX "No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
 325                 err = -ENODEV;
 326                 goto err_put;
 327         }
 328
 329         /* Get the device ID */
 330         for (i = 0; i < 10; i++) {
 331                 robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
 332                 if (robo.devid)
 333                         break;
 334                 udelay(10);
 335         }
 336         if (!robo.devid)
 337                 robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
 338         robo.is_5350 = robo_vlan5350(phyid);
 339
 340         robo_switch_reset();
 341         err = robo_switch_enable();
 342         if (err)
 343                 goto err_put;
 344
 345         printk(KERN_INFO PFX "found a 5%s%x!%s at %s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
 346                 robo.is_5350 ? " It's a 5350." : "", devname);
 347
 348         return 0;
 349 err_put:
 350         dev_put(robo.dev);
 351         robo.dev = NULL;
 352 err_done:
 353         return err;
 354 }
 355
 356
 357 static int handle_vlan_port_read(void *driver, char *buf, int nr)
 358 {
 359         __u16 val16;
 360         int len = 0;
 361         int j;
 362
 363         val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
 364
 365         if (robo.is_5350) {
 366                 u32 val32;
 367                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 368                 /* actual read */
 369                 val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 370                 if ((val32 & (1 << 20)) /* valid */) {
 371                         for (j = 0; j < 6; j++) {
 372                                 if (val32 & (1 << j)) {
 373                                         len += sprintf(buf + len, "%d", j);
 374                                         if (val32 & (1 << (j + 6))) {
 375                                                 if (j == 5) buf[len++] = 'u';
 376                                         } else {
 377                                                 buf[len++] = 't';
 378                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 379                                                         buf[len++] = '*';
 380                                         }
 381                                         buf[len++] = '\t';
 382                                 }
 383                         }
 384                         len += sprintf(buf + len, "\n");
 385                 }
 386         } else {
 387                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 388                 /* actual read */
 389                 val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
 390                 if ((val16 & (1 << 14)) /* valid */) {
 391                         for (j = 0; j < 6; j++) {
 392                                 if (val16 & (1 << j)) {
 393                                         len += sprintf(buf + len, "%d", j);
 394                                         if (val16 & (1 << (j + 7))) {
 395                                                 if (j == 5) buf[len++] = 'u';
 396                                         } else {
 397                                                 buf[len++] = 't';
 398                                                 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
 399                                                         buf[len++] = '*';
 400                                         }
 401                                         buf[len++] = '\t';
 402                                 }
 403                         }
 404                         len += sprintf(buf + len, "\n");
 405                 }
 406         }
 407
 408         buf[len] = '\0';
 409
 410         return len;
 411 }
 412
 413 static int handle_vlan_port_write(void *driver, char *buf, int nr)
 414 {
 415         switch_driver *d = (switch_driver *) driver;
 416         switch_vlan_config *c = switch_parse_vlan(d, buf);
 417         int j;
 418         __u16 val16;
 419
 420         if (c == NULL)
 421                 return -EINVAL;
 422
 423         for (j = 0; j < d->ports; j++) {
 424                 if ((c->untag | c->pvid) & (1 << j))
 425                         /* change default vlan tag */
 426                         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
 427         }
 428
 429         /* write config now */
 430
 431         if (robo.devid != ROBO_DEVICE_ID_5325) {
 432                 __u8 regoff = ((robo.devid == ROBO_DEVICE_ID_5395) ||
 433                         (robo.devid == ROBO_DEVICE_ID_53115)) ? 0x20 : 0;
 434
 435                 robo_write32(ROBO_ARLIO_PAGE, 0x63 + regoff, (c->untag << 9) | c->port);
 436                 robo_write16(ROBO_ARLIO_PAGE, 0x61 + regoff, nr);
 437                 robo_write16(ROBO_ARLIO_PAGE, 0x60 + regoff, 1 << 7);
 438                 kfree(c);
 439                 return 0;
 440         }
 441
 442         val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 443         if (robo.is_5350) {
 444                 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
 445                         (1 << 20) /* valid */ | (c->untag << 6) | c->port);
 446                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
 447         } else {
 448                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
 449                         (1 << 14)  /* valid */ | (c->untag << 7) | c->port);
 450                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
 451         }
 452
 453         kfree(c);
 454         return 0;
 455 }
 456
 457 #define set_switch(state) \
 458         robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
 459
 460 static int handle_enable_read(void *driver, char *buf, int nr)
 461 {
 462         return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
 463 }
 464
 465 static int handle_enable_write(void *driver, char *buf, int nr)
 466 {
 467         set_switch(buf[0] == '1');
 468
 469         return 0;
 470 }
 471
 472 static int handle_port_enable_read(void *driver, char *buf, int nr)
 473 {
 474         return sprintf(buf, "%d\n", ((robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & 3) == 3 ? 0 : 1));
 475 }
 476
 477 static int handle_port_enable_write(void *driver, char *buf, int nr)
 478 {
 479         u16 val16;
 480
 481         if (buf[0] == '0')
 482                 val16 = 3; /* disabled */
 483         else if (buf[0] == '1')
 484                 val16 = 0; /* enabled */
 485         else
 486                 return -EINVAL;
 487
 488         robo_write16(ROBO_CTRL_PAGE, robo.port[nr],
 489                 (robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & ~3) | val16);
 490
 491         return 0;
 492 }
 493
 494 static int handle_port_media_read(void *driver, char *buf, int nr)
 495 {
 496         u16 bmcr = mdio_read(robo.port[nr], MII_BMCR);
 497         int media, len;
 498
 499         if (bmcr & BMCR_ANENABLE)
 500                 media = SWITCH_MEDIA_AUTO;
 501         else {
 502                 if (bmcr & BMCR_SPEED1000)
 503                         media = SWITCH_MEDIA_1000;
 504                 else if (bmcr & BMCR_SPEED100)
 505                         media = SWITCH_MEDIA_100;
 506                 else
 507                         media = 0;
 508
 509                 if (bmcr & BMCR_FULLDPLX)
 510                         media |= SWITCH_MEDIA_FD;
 511         }
 512
 513         len = switch_print_media(buf, media);
 514         return len + sprintf(buf + len, "\n");
 515 }
 516
 517 static int handle_port_media_write(void *driver, char *buf, int nr)
 518 {
 519         int media = switch_parse_media(buf);
 520         u16 bmcr, bmcr_mask;
 521
 522         if (media & SWITCH_MEDIA_AUTO)
 523                 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
 524         else {
 525                 if (media & SWITCH_MEDIA_1000) {
 526                         if (!robo.gmii)
 527                                 return -EINVAL;
 528                         bmcr = BMCR_SPEED1000;
 529                 }
 530                 else if (media & SWITCH_MEDIA_100)
 531                         bmcr = BMCR_SPEED100;
 532                 else
 533                         bmcr = 0;
 534
 535                 if (media & SWITCH_MEDIA_FD)
 536                         bmcr |= BMCR_FULLDPLX;
 537         }
 538
 539         bmcr_mask = ~(BMCR_SPEED1000 | BMCR_SPEED100 | BMCR_FULLDPLX | BMCR_ANENABLE | BMCR_ANRESTART);
 540         mdio_write(robo.port[nr], MII_BMCR,
 541                 (mdio_read(robo.port[nr], MII_BMCR) & bmcr_mask) | bmcr);
 542
 543         return 0;
 544 }
 545
 546 static int handle_enable_vlan_read(void *driver, char *buf, int nr)
 547 {
 548         return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
 549 }
 550
 551 static int handle_enable_vlan_write(void *driver, char *buf, int nr)
 552 {
 553         int disable = ((buf[0] != '1') ? 1 : 0);
 554
 555         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
 556                 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
 557         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
 558                 (robo.devid == ROBO_DEVICE_ID_5325 ? (1 << 1) :
 559                 0) | (1 << 2) | (1 << 3)); /* RSV multicast */
 560
 561         if (robo.devid != ROBO_DEVICE_ID_5325)
 562                 return 0;
 563
 564         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
 565                 (1 << 6) /* drop invalid VID frames */);
 566         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
 567                 (1 << 3) /* drop miss V table frames */);
 568
 569         return 0;
 570 }
 571
 572 static int handle_reset(void *driver, char *buf, int nr)
 573 {
 574         switch_driver *d = (switch_driver *) driver;
 575         int j;
 576         __u16 val16;
 577
 578         /* disable switching */
 579         set_switch(0);
 580
 581         /* reset vlans */
 582         for (j = 0; j <= ((robo.is_5350) ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
 583                 /* write config now */
 584                 val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
 585                 if (robo.is_5350)
 586                         robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350, 0);
 587                 else
 588                         robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
 589                 robo_write16(ROBO_VLAN_PAGE, robo.is_5350 ? ROBO_VLAN_TABLE_ACCESS_5350 :
 590                                                             ROBO_VLAN_TABLE_ACCESS,
 591                              val16);
 592         }
 593
 594         /* reset ports to a known good state */
 595         for (j = 0; j < d->ports; j++) {
 596                 robo_write16(ROBO_CTRL_PAGE, robo.port[j], 0x0000);
 597                 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
 598         }
 599
 600         /* enable switching */
 601         set_switch(1);
 602
 603         /* enable vlans */
 604         handle_enable_vlan_write(driver, "1", 0);
 605
 606         return 0;
 607 }
 608
 609 static int __init robo_init(void)
 610 {
 611         int notfound = 1;
 612         char *device;
 613
 614         device = strdup("ethX");
 615         for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
 616                 if (! switch_device_registered (device))
 617                         notfound = robo_probe(device);
 618         }
 619         device[3]--;
 620
 621         if (notfound) {
 622                 kfree(device);
 623                 return -ENODEV;
 624         } else {
 625                 static const switch_config cfg[] = {
 626                         {
 627                                 .name   = "enable",
 628                                 .read   = handle_enable_read,
 629                                 .write  = handle_enable_write
 630                         }, {
 631                                 .name   = "enable_vlan",
 632                                 .read   = handle_enable_vlan_read,
 633                                 .write  = handle_enable_vlan_write
 634                         }, {
 635                                 .name   = "reset",
 636                                 .read   = NULL,
 637                                 .write  = handle_reset
 638                         }, { NULL, },
 639                 };
 640                 static const switch_config port[] = {
 641                         {
 642                                 .name   = "enable",
 643                                 .read   = handle_port_enable_read,
 644                                 .write  = handle_port_enable_write
 645                         }, {
 646                                 .name   = "media",
 647                                 .read   = handle_port_media_read,
 648                                 .write  = handle_port_media_write
 649                         }, { NULL, },
 650                 };
 651                 static const switch_config vlan[] = {
 652                         {
 653                                 .name   = "ports",
 654                                 .read   = handle_vlan_port_read,
 655                                 .write  = handle_vlan_port_write
 656                         }, { NULL, },
 657                 };
 658                 switch_driver driver = {
 659                         .name                   = DRIVER_NAME,
 660                         .version                = DRIVER_VERSION,
 661                         .interface              = device,
 662                         .cpuport                = 5,
 663                         .ports                  = 6,
 664                         .vlans                  = 16,
 665                         .driver_handlers        = cfg,
 666                         .port_handlers          = port,
 667                         .vlan_handlers          = vlan,
 668                 };
 669                 if (robo.devid != ROBO_DEVICE_ID_5325) {
 670                         driver.ports = 9;
 671                         driver.cpuport = 8;
 672                 }
 673
 674                 return switch_register_driver(&driver);
 675         }
 676 }
 677
 678 static void __exit robo_exit(void)
 679 {
 680         switch_unregister_driver(DRIVER_NAME);
 681         if (robo.dev)
 682                 dev_put(robo.dev);
 683         kfree(robo.device);
 684 }
 685
 686
 687 MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
 688 MODULE_LICENSE("GPL");
 689
 690 module_init(robo_init);
 691 module_exit(robo_exit);