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switch: improve robo_switch_enable()
[openwrt/staging/chunkeey.git] / 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 <linux/gpio.h>
33 #include <asm/uaccess.h>
34
35 #include "switch-core.h"
36 #include "etc53xx.h"
37
38 #ifdef CONFIG_BCM47XX
39 #include <bcm47xx_nvram.h>
40 #endif
41
42 #define DRIVER_NAME "bcm53xx"
43 #define DRIVER_VERSION "0.02"
44 #define PFX "roboswitch: "
45
46 #define ROBO_PHY_ADDR 0x1E /* robo switch phy address */
47 #define ROBO_PHY_ADDR_TG3 0x01 /* Tigon3 PHY address */
48 #define ROBO_PHY_ADDR_BCM63XX 0x00 /* BCM63XX PHY address */
49
50 /* MII registers */
51 #define REG_MII_PAGE 0x10 /* MII Page register */
52 #define REG_MII_ADDR 0x11 /* MII Address register */
53 #define REG_MII_DATA0 0x18 /* MII Data register 0 */
54
55 #define REG_MII_PAGE_ENABLE 1
56 #define REG_MII_ADDR_WRITE 1
57 #define REG_MII_ADDR_READ 2
58
59 /* Robo device ID register (in ROBO_MGMT_PAGE) */
60 #define ROBO_DEVICE_ID 0x30
61 #define ROBO_DEVICE_ID_5325 0x25 /* Faked */
62 #define ROBO_DEVICE_ID_5395 0x95
63 #define ROBO_DEVICE_ID_5397 0x97
64 #define ROBO_DEVICE_ID_5398 0x98
65 #define ROBO_DEVICE_ID_53115 0x3115
66
67 /* Private et.o ioctls */
68 #define SIOCGETCPHYRD (SIOCDEVPRIVATE + 9)
69 #define SIOCSETCPHYWR (SIOCDEVPRIVATE + 10)
70
71 /* Data structure for a Roboswitch device. */
72 struct robo_switch {
73 char *device; /* The device name string (ethX) */
74 u16 devid; /* ROBO_DEVICE_ID_53xx */
75 bool is_5365;
76 bool gmii; /* gigabit mii */
77 int gpio_robo_reset;
78 int gpio_lanports_enable;
79 struct ifreq ifr;
80 struct net_device *dev;
81 unsigned char port[9];
82 };
83
84 /* Currently we can only have one device in the system. */
85 static struct robo_switch robo;
86
87
88 static int do_ioctl(int cmd)
89 {
90 mm_segment_t old_fs = get_fs();
91 int ret;
92
93 set_fs(KERNEL_DS);
94 ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
95 set_fs(old_fs);
96
97 return ret;
98 }
99
100 static u16 mdio_read(__u16 phy_id, __u8 reg)
101 {
102 struct mii_ioctl_data *mii = if_mii(&robo.ifr);
103 int err;
104
105 mii->phy_id = phy_id;
106 mii->reg_num = reg;
107
108 err = do_ioctl(SIOCGMIIREG);
109 if (err < 0) {
110 printk(KERN_ERR PFX "failed to read mdio reg %i with err %i.\n", reg, err);
111
112 return 0xffff;
113 }
114
115 return mii->val_out;
116 }
117
118 static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
119 {
120 struct mii_ioctl_data *mii = if_mii(&robo.ifr);
121 int err;
122
123 mii->phy_id = phy_id;
124 mii->reg_num = reg;
125 mii->val_in = val;
126
127 err = do_ioctl(SIOCSMIIREG);
128 if (err < 0) {
129 printk(KERN_ERR PFX "failed to write mdio reg: %i with err %i.\n", reg, err);
130 return;
131 }
132 }
133
134 static int robo_reg(__u8 page, __u8 reg, __u8 op)
135 {
136 int i = 3;
137
138 /* set page number */
139 mdio_write(ROBO_PHY_ADDR, REG_MII_PAGE,
140 (page << 8) | REG_MII_PAGE_ENABLE);
141
142 /* set register address */
143 mdio_write(ROBO_PHY_ADDR, REG_MII_ADDR,
144 (reg << 8) | op);
145
146 /* check if operation completed */
147 while (i--) {
148 if ((mdio_read(ROBO_PHY_ADDR, REG_MII_ADDR) & 3) == 0)
149 return 0;
150 }
151
152 printk(KERN_ERR PFX "timeout in robo_reg on page %i and reg %i with op %i.\n", page, reg, op);
153
154 return 1;
155 }
156
157 /*
158 static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
159 {
160 int i;
161
162 robo_reg(page, reg, REG_MII_ADDR_READ);
163
164 for (i = 0; i < count; i++)
165 val[i] = mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + i);
166 }
167 */
168
169 static __u16 robo_read16(__u8 page, __u8 reg)
170 {
171 robo_reg(page, reg, REG_MII_ADDR_READ);
172
173 return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0);
174 }
175
176 static __u32 robo_read32(__u8 page, __u8 reg)
177 {
178 robo_reg(page, reg, REG_MII_ADDR_READ);
179
180 return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) |
181 (mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
182 }
183
184 static void robo_write16(__u8 page, __u8 reg, __u16 val16)
185 {
186 /* write data */
187 mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val16);
188
189 robo_reg(page, reg, REG_MII_ADDR_WRITE);
190 }
191
192 static void robo_write32(__u8 page, __u8 reg, __u32 val32)
193 {
194 /* write data */
195 mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 0xFFFF);
196 mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
197
198 robo_reg(page, reg, REG_MII_ADDR_WRITE);
199 }
200
201 /* checks that attached switch is 5365 */
202 static bool robo_bcm5365(void)
203 {
204 /* set vlan access id to 15 and read it back */
205 __u16 val16 = 15;
206 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
207
208 /* 5365 will refuse this as it does not have this reg */
209 return robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS) != val16;
210 }
211
212 static bool robo_gmii(void)
213 {
214 if (mdio_read(0, ROBO_MII_STAT) & 0x0100)
215 return ((mdio_read(0, 0x0f) & 0xf000) != 0);
216 return false;
217 }
218
219 static int robo_switch_enable(void)
220 {
221 unsigned int i, last_port;
222 u16 val;
223 #ifdef CONFIG_BCM47XX
224 char buf[20];
225 #endif
226
227 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
228 if (!(val & (1 << 1))) {
229 /* Unmanaged mode */
230 val &= ~(1 << 0);
231 /* With forwarding */
232 val |= (1 << 1);
233 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
234 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
235 if (!(val & (1 << 1))) {
236 printk(KERN_ERR PFX "Failed to enable switch\n");
237 return -EBUSY;
238 }
239
240 /* No spanning tree for unmanaged mode */
241 last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
242 ROBO_PORT7_CTRL : ROBO_PORT4_CTRL;
243 for (i = ROBO_PORT0_CTRL; i <= last_port; i++)
244 robo_write16(ROBO_CTRL_PAGE, i, 0);
245
246 /* No spanning tree on IMP port too */
247 robo_write16(ROBO_CTRL_PAGE, ROBO_IM_PORT_CTRL, 0);
248 }
249
250 #ifdef CONFIG_BCM47XX
251 /* WAN port LED, except for Netgear WGT634U */
252 if (bcm47xx_nvram_getenv("nvram_type", buf, sizeof(buf)) >= 0) {
253 if (strcmp(buf, "cfe") != 0)
254 robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
255 }
256 #endif
257 return 0;
258 }
259
260 static void robo_switch_reset(void)
261 {
262 if ((robo.devid == ROBO_DEVICE_ID_5395) ||
263 (robo.devid == ROBO_DEVICE_ID_5397) ||
264 (robo.devid == ROBO_DEVICE_ID_5398)) {
265 /* Trigger a software reset. */
266 robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
267 mdelay(500);
268 robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
269 }
270 }
271
272 #ifdef CONFIG_BCM47XX
273 static int get_gpio_pin(const char *name)
274 {
275 int i, err;
276 char nvram_var[10];
277 char buf[30];
278
279 for (i = 0; i < 16; i++) {
280 err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
281 if (err <= 0)
282 continue;
283 err = bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf));
284 if (err <= 0)
285 continue;
286 if (!strcmp(name, buf))
287 return i;
288 }
289 return -1;
290 }
291 #endif
292
293 static int robo_probe(char *devname)
294 {
295 __u32 phyid;
296 unsigned int i;
297 int err = -1;
298 struct mii_ioctl_data *mii;
299
300 printk(KERN_INFO PFX "Probing device '%s'\n", devname);
301 strcpy(robo.ifr.ifr_name, devname);
302
303 if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
304 printk(KERN_ERR PFX "No such device\n");
305 err = -ENODEV;
306 goto err_done;
307 }
308 if (!robo.dev->netdev_ops || !robo.dev->netdev_ops->ndo_do_ioctl) {
309 printk(KERN_ERR PFX "ndo_do_ioctl not implemented in ethernet driver\n");
310 err = -ENXIO;
311 goto err_put;
312 }
313
314 robo.device = devname;
315
316 /* try access using MII ioctls - get phy address */
317 err = do_ioctl(SIOCGMIIPHY);
318 if (err < 0) {
319 printk(KERN_ERR PFX "error (%i) while accessing MII phy registers with ioctls\n", err);
320 goto err_put;
321 }
322
323 /* got phy address check for robo address */
324 mii = if_mii(&robo.ifr);
325 if ((mii->phy_id != ROBO_PHY_ADDR) &&
326 (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
327 (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
328 printk(KERN_ERR PFX "Invalid phy address (%d)\n", mii->phy_id);
329 err = -ENODEV;
330 goto err_put;
331 }
332
333 #ifdef CONFIG_BCM47XX
334 robo.gpio_lanports_enable = get_gpio_pin("lanports_enable");
335 if (robo.gpio_lanports_enable >= 0) {
336 err = gpio_request(robo.gpio_lanports_enable, "lanports_enable");
337 if (err) {
338 printk(KERN_ERR PFX "error (%i) requesting lanports_enable gpio (%i)\n",
339 err, robo.gpio_lanports_enable);
340 goto err_put;
341 }
342 gpio_direction_output(robo.gpio_lanports_enable, 1);
343 mdelay(5);
344 }
345
346 robo.gpio_robo_reset = get_gpio_pin("robo_reset");
347 if (robo.gpio_robo_reset >= 0) {
348 err = gpio_request(robo.gpio_robo_reset, "robo_reset");
349 if (err) {
350 printk(KERN_ERR PFX "error (%i) requesting robo_reset gpio (%i)\n",
351 err, robo.gpio_robo_reset);
352 goto err_gpio_robo;
353 }
354 gpio_set_value(robo.gpio_robo_reset, 0);
355 gpio_direction_output(robo.gpio_robo_reset, 1);
356 gpio_set_value(robo.gpio_robo_reset, 0);
357 mdelay(50);
358
359 gpio_set_value(robo.gpio_robo_reset, 1);
360 mdelay(20);
361 } else {
362 // TODO: reset the internal robo switch
363 }
364 #endif
365
366 phyid = mdio_read(ROBO_PHY_ADDR, 0x2) |
367 (mdio_read(ROBO_PHY_ADDR, 0x3) << 16);
368
369 if (phyid == 0xffffffff || phyid == 0x55210022) {
370 printk(KERN_ERR PFX "No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
371 err = -ENODEV;
372 goto err_gpio_lanports;
373 }
374
375 /* Get the device ID */
376 for (i = 0; i < 10; i++) {
377 robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
378 if (robo.devid)
379 break;
380 udelay(10);
381 }
382 if (!robo.devid)
383 robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
384 if (robo.devid == ROBO_DEVICE_ID_5325)
385 robo.is_5365 = robo_bcm5365();
386 else
387 robo.is_5365 = false;
388
389 robo.gmii = robo_gmii();
390 if (robo.devid == ROBO_DEVICE_ID_5325) {
391 for (i = 0; i < 5; i++)
392 robo.port[i] = i;
393 } else {
394 for (i = 0; i < 8; i++)
395 robo.port[i] = i;
396 }
397 robo.port[i] = ROBO_IM_PORT_CTRL;
398
399 robo_switch_reset();
400 err = robo_switch_enable();
401 if (err)
402 goto err_gpio_lanports;
403
404 printk(KERN_INFO PFX "found a 5%s%x!%s at %s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
405 robo.is_5365 ? " It's a BCM5365." : "", devname);
406
407 return 0;
408
409 err_gpio_lanports:
410 if (robo.gpio_lanports_enable >= 0)
411 gpio_free(robo.gpio_lanports_enable);
412 err_gpio_robo:
413 if (robo.gpio_robo_reset >= 0)
414 gpio_free(robo.gpio_robo_reset);
415 err_put:
416 dev_put(robo.dev);
417 robo.dev = NULL;
418 err_done:
419 return err;
420 }
421
422
423 static int handle_vlan_port_read(void *driver, char *buf, int nr)
424 {
425 __u16 val16;
426 int len = 0;
427 int j;
428
429 val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
430
431 if (robo.is_5365) {
432 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5365, val16);
433 /* actual read */
434 val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
435 if ((val16 & (1 << 14)) /* valid */) {
436 for (j = 0; j < 6; j++) {
437 if (val16 & (1 << j)) {
438 len += sprintf(buf + len, "%d", j);
439 if (val16 & (1 << (j + 7))) {
440 if (j == 5)
441 buf[len++] = 'u';
442 } else {
443 buf[len++] = 't';
444 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
445 buf[len++] = '*';
446 }
447 buf[len++] = '\t';
448 }
449 }
450 len += sprintf(buf + len, "\n");
451 }
452 } else {
453 u32 val32;
454 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
455 /* actual read */
456 val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
457 if ((val32 & (1 << 20)) /* valid */) {
458 for (j = 0; j < 6; j++) {
459 if (val32 & (1 << j)) {
460 len += sprintf(buf + len, "%d", j);
461 if (val32 & (1 << (j + 6))) {
462 if (j == 5)
463 buf[len++] = 'u';
464 } else {
465 buf[len++] = 't';
466 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
467 buf[len++] = '*';
468 }
469 buf[len++] = '\t';
470 }
471 }
472 len += sprintf(buf + len, "\n");
473 }
474 }
475
476 buf[len] = '\0';
477
478 return len;
479 }
480
481 static int handle_vlan_port_write(void *driver, char *buf, int nr)
482 {
483 switch_driver *d = (switch_driver *) driver;
484 switch_vlan_config *c = switch_parse_vlan(d, buf);
485 int j;
486 __u16 val16;
487
488 if (c == NULL)
489 return -EINVAL;
490
491 for (j = 0; j < d->ports; j++) {
492 if ((c->untag | c->pvid) & (1 << j))
493 /* change default vlan tag */
494 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
495 }
496
497 /* write config now */
498
499 if (robo.devid != ROBO_DEVICE_ID_5325) {
500 __u8 regoff = ((robo.devid == ROBO_DEVICE_ID_5395) ||
501 (robo.devid == ROBO_DEVICE_ID_53115)) ? 0x20 : 0;
502
503 robo_write32(ROBO_ARLIO_PAGE, 0x63 + regoff, (c->untag << 9) | c->port);
504 robo_write16(ROBO_ARLIO_PAGE, 0x61 + regoff, nr);
505 robo_write16(ROBO_ARLIO_PAGE, 0x60 + regoff, 1 << 7);
506 kfree(c);
507 return 0;
508 }
509
510 val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
511 if (robo.is_5365) {
512 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5365,
513 (1 << 14) /* valid */ | (c->untag << 7) | c->port);
514 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5365, val16);
515 } else {
516 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
517 (1 << 20) /* valid */ | (c->untag << 6) | c->port);
518 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
519 }
520
521 kfree(c);
522 return 0;
523 }
524
525 #define set_switch(state) \
526 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
527
528 static int handle_enable_read(void *driver, char *buf, int nr)
529 {
530 return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
531 }
532
533 static int handle_enable_write(void *driver, char *buf, int nr)
534 {
535 set_switch(buf[0] == '1');
536
537 return 0;
538 }
539
540 static int handle_port_enable_read(void *driver, char *buf, int nr)
541 {
542 return sprintf(buf, "%d\n", ((robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & 3) == 3 ? 0 : 1));
543 }
544
545 static int handle_port_enable_write(void *driver, char *buf, int nr)
546 {
547 u16 val16;
548
549 if (buf[0] == '0')
550 val16 = 3; /* disabled */
551 else if (buf[0] == '1')
552 val16 = 0; /* enabled */
553 else
554 return -EINVAL;
555
556 robo_write16(ROBO_CTRL_PAGE, robo.port[nr],
557 (robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & ~3) | val16);
558
559 return 0;
560 }
561
562 static int handle_port_media_read(void *driver, char *buf, int nr)
563 {
564 u16 bmcr = mdio_read(robo.port[nr], MII_BMCR);
565 int media, len;
566
567 if (bmcr & BMCR_ANENABLE)
568 media = SWITCH_MEDIA_AUTO;
569 else {
570 if (bmcr & BMCR_SPEED1000)
571 media = SWITCH_MEDIA_1000;
572 else if (bmcr & BMCR_SPEED100)
573 media = SWITCH_MEDIA_100;
574 else
575 media = 0;
576
577 if (bmcr & BMCR_FULLDPLX)
578 media |= SWITCH_MEDIA_FD;
579 }
580
581 len = switch_print_media(buf, media);
582 return len + sprintf(buf + len, "\n");
583 }
584
585 static int handle_port_media_write(void *driver, char *buf, int nr)
586 {
587 int media = switch_parse_media(buf);
588 u16 bmcr, bmcr_mask;
589
590 if (media & SWITCH_MEDIA_AUTO)
591 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
592 else {
593 if (media & SWITCH_MEDIA_1000) {
594 if (!robo.gmii)
595 return -EINVAL;
596 bmcr = BMCR_SPEED1000;
597 }
598 else if (media & SWITCH_MEDIA_100)
599 bmcr = BMCR_SPEED100;
600 else
601 bmcr = 0;
602
603 if (media & SWITCH_MEDIA_FD)
604 bmcr |= BMCR_FULLDPLX;
605 }
606
607 bmcr_mask = ~(BMCR_SPEED1000 | BMCR_SPEED100 | BMCR_FULLDPLX | BMCR_ANENABLE | BMCR_ANRESTART);
608 mdio_write(robo.port[nr], MII_BMCR,
609 (mdio_read(robo.port[nr], MII_BMCR) & bmcr_mask) | bmcr);
610
611 return 0;
612 }
613
614 static int handle_enable_vlan_read(void *driver, char *buf, int nr)
615 {
616 return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
617 }
618
619 static int handle_enable_vlan_write(void *driver, char *buf, int nr)
620 {
621 int disable = ((buf[0] != '1') ? 1 : 0);
622
623 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
624 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
625 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
626 (robo.devid == ROBO_DEVICE_ID_5325 ? (1 << 1) :
627 0) | (1 << 2) | (1 << 3)); /* RSV multicast */
628
629 if (robo.devid != ROBO_DEVICE_ID_5325)
630 return 0;
631
632 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
633 (1 << 6) /* drop invalid VID frames */);
634 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
635 (1 << 3) /* drop miss V table frames */);
636
637 return 0;
638 }
639
640 static int handle_reset(void *driver, char *buf, int nr)
641 {
642 switch_driver *d = (switch_driver *) driver;
643 int j;
644 __u16 val16;
645
646 /* disable switching */
647 set_switch(0);
648
649 /* reset vlans */
650 for (j = 0; j <= ((robo.is_5365) ? VLAN_ID_MAX_5365 : VLAN_ID_MAX); j++) {
651 /* write config now */
652 val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
653 if (robo.is_5365)
654 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5365, 0);
655 else
656 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
657 robo_write16(ROBO_VLAN_PAGE, robo.is_5365 ? ROBO_VLAN_TABLE_ACCESS_5365 :
658 ROBO_VLAN_TABLE_ACCESS,
659 val16);
660 }
661
662 /* reset ports to a known good state */
663 for (j = 0; j < d->ports; j++) {
664 robo_write16(ROBO_CTRL_PAGE, robo.port[j], 0x0000);
665 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
666 }
667
668 /* enable switching */
669 set_switch(1);
670
671 /* enable vlans */
672 handle_enable_vlan_write(driver, "1", 0);
673
674 return 0;
675 }
676
677 static int __init robo_init(void)
678 {
679 int notfound = 1;
680 char *device;
681
682 device = strdup("ethX");
683 for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
684 if (! switch_device_registered (device))
685 notfound = robo_probe(device);
686 }
687 device[3]--;
688
689 if (notfound) {
690 kfree(device);
691 return -ENODEV;
692 } else {
693 static const switch_config cfg[] = {
694 {
695 .name = "enable",
696 .read = handle_enable_read,
697 .write = handle_enable_write
698 }, {
699 .name = "enable_vlan",
700 .read = handle_enable_vlan_read,
701 .write = handle_enable_vlan_write
702 }, {
703 .name = "reset",
704 .read = NULL,
705 .write = handle_reset
706 }, { NULL, },
707 };
708 static const switch_config port[] = {
709 {
710 .name = "enable",
711 .read = handle_port_enable_read,
712 .write = handle_port_enable_write
713 }, {
714 .name = "media",
715 .read = handle_port_media_read,
716 .write = handle_port_media_write
717 }, { NULL, },
718 };
719 static const switch_config vlan[] = {
720 {
721 .name = "ports",
722 .read = handle_vlan_port_read,
723 .write = handle_vlan_port_write
724 }, { NULL, },
725 };
726 switch_driver driver = {
727 .name = DRIVER_NAME,
728 .version = DRIVER_VERSION,
729 .interface = device,
730 .cpuport = 5,
731 .ports = 6,
732 .vlans = 16,
733 .driver_handlers = cfg,
734 .port_handlers = port,
735 .vlan_handlers = vlan,
736 };
737 if (robo.devid != ROBO_DEVICE_ID_5325) {
738 driver.ports = 9;
739 driver.cpuport = 8;
740 }
741
742 return switch_register_driver(&driver);
743 }
744 }
745
746 static void __exit robo_exit(void)
747 {
748 switch_unregister_driver(DRIVER_NAME);
749 if (robo.dev)
750 dev_put(robo.dev);
751 if (robo.gpio_robo_reset >= 0)
752 gpio_free(robo.gpio_robo_reset);
753 if (robo.gpio_lanports_enable >= 0)
754 gpio_free(robo.gpio_lanports_enable);
755 kfree(robo.device);
756 }
757
758
759 MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
760 MODULE_LICENSE("GPL");
761
762 module_init(robo_init);
763 module_exit(robo_exit);
Staging tree of Christian Lamparter