33dbf969c11ce1b4cdcaef9588b162cf789354b8
[openwrt/openwrt.git] / target / linux / generic / files / drivers / net / phy / rtl8306.c
1 /*
2 * rtl8306.c: RTL8306S switch driver
3 *
4 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 #include <linux/if.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/list.h>
20 #include <linux/if_ether.h>
21 #include <linux/skbuff.h>
22 #include <linux/netdevice.h>
23 #include <linux/netlink.h>
24 #include <net/genetlink.h>
25 #include <linux/switch.h>
26 #include <linux/delay.h>
27 #include <linux/phy.h>
28
29 //#define DEBUG 1
30
31 /* Global (PHY0) */
32 #define RTL8306_REG_PAGE 16
33 #define RTL8306_REG_PAGE_LO (1 << 15)
34 #define RTL8306_REG_PAGE_HI (1 << 1) /* inverted */
35
36 #define RTL8306_NUM_VLANS 16
37 #define RTL8306_NUM_PORTS 6
38 #define RTL8306_PORT_CPU 5
39 #define RTL8306_NUM_PAGES 4
40 #define RTL8306_NUM_REGS 32
41
42 #define RTL_NAME_S "RTL8306S"
43 #define RTL_NAME_SD "RTL8306SD"
44 #define RTL_NAME_SDM "RTL8306SDM"
45 #define RTL_NAME_UNKNOWN "RTL8306(unknown)"
46
47 #define RTL8306_MAGIC 0x8306
48
49 static LIST_HEAD(phydevs);
50
51 struct rtl_priv {
52 struct list_head list;
53 struct switch_dev dev;
54 int page;
55 int type;
56 int do_cpu;
57 struct mii_bus *bus;
58 char hwname[sizeof(RTL_NAME_UNKNOWN)];
59 bool fixup;
60 };
61
62 struct rtl_phyregs {
63 int nway;
64 int speed;
65 int duplex;
66 };
67
68 #define to_rtl(_dev) container_of(_dev, struct rtl_priv, dev)
69
70 enum {
71 RTL_TYPE_S,
72 RTL_TYPE_SD,
73 RTL_TYPE_SDM,
74 };
75
76 struct rtl_reg {
77 int page;
78 int phy;
79 int reg;
80 int bits;
81 int shift;
82 int inverted;
83 };
84
85 #define RTL_VLAN_REGOFS(name) \
86 (RTL_REG_VLAN1_##name - RTL_REG_VLAN0_##name)
87
88 #define RTL_PORT_REGOFS(name) \
89 (RTL_REG_PORT1_##name - RTL_REG_PORT0_##name)
90
91 #define RTL_PORT_REG(id, reg) \
92 (RTL_REG_PORT0_##reg + (id * RTL_PORT_REGOFS(reg)))
93
94 #define RTL_VLAN_REG(id, reg) \
95 (RTL_REG_VLAN0_##reg + (id * RTL_VLAN_REGOFS(reg)))
96
97 #define RTL_GLOBAL_REGATTR(reg) \
98 .id = RTL_REG_##reg, \
99 .type = SWITCH_TYPE_INT, \
100 .ofs = 0, \
101 .set = rtl_attr_set_int, \
102 .get = rtl_attr_get_int
103
104 #define RTL_PORT_REGATTR(reg) \
105 .id = RTL_REG_PORT0_##reg, \
106 .type = SWITCH_TYPE_INT, \
107 .ofs = RTL_PORT_REGOFS(reg), \
108 .set = rtl_attr_set_port_int, \
109 .get = rtl_attr_get_port_int
110
111 #define RTL_VLAN_REGATTR(reg) \
112 .id = RTL_REG_VLAN0_##reg, \
113 .type = SWITCH_TYPE_INT, \
114 .ofs = RTL_VLAN_REGOFS(reg), \
115 .set = rtl_attr_set_vlan_int, \
116 .get = rtl_attr_get_vlan_int
117
118 enum rtl_regidx {
119 RTL_REG_CHIPID,
120 RTL_REG_CHIPVER,
121 RTL_REG_CHIPTYPE,
122 RTL_REG_CPUPORT,
123
124 RTL_REG_EN_CPUPORT,
125 RTL_REG_EN_TAG_OUT,
126 RTL_REG_EN_TAG_CLR,
127 RTL_REG_EN_TAG_IN,
128 RTL_REG_TRAP_CPU,
129 RTL_REG_TRUNK_PORTSEL,
130 RTL_REG_EN_TRUNK,
131 RTL_REG_RESET,
132
133 RTL_REG_VLAN_ENABLE,
134 RTL_REG_VLAN_FILTER,
135 RTL_REG_VLAN_TAG_ONLY,
136 RTL_REG_VLAN_TAG_AWARE,
137 #define RTL_VLAN_ENUM(id) \
138 RTL_REG_VLAN##id##_VID, \
139 RTL_REG_VLAN##id##_PORTMASK
140 RTL_VLAN_ENUM(0),
141 RTL_VLAN_ENUM(1),
142 RTL_VLAN_ENUM(2),
143 RTL_VLAN_ENUM(3),
144 RTL_VLAN_ENUM(4),
145 RTL_VLAN_ENUM(5),
146 RTL_VLAN_ENUM(6),
147 RTL_VLAN_ENUM(7),
148 RTL_VLAN_ENUM(8),
149 RTL_VLAN_ENUM(9),
150 RTL_VLAN_ENUM(10),
151 RTL_VLAN_ENUM(11),
152 RTL_VLAN_ENUM(12),
153 RTL_VLAN_ENUM(13),
154 RTL_VLAN_ENUM(14),
155 RTL_VLAN_ENUM(15),
156 #define RTL_PORT_ENUM(id) \
157 RTL_REG_PORT##id##_PVID, \
158 RTL_REG_PORT##id##_NULL_VID_REPLACE, \
159 RTL_REG_PORT##id##_NON_PVID_DISCARD, \
160 RTL_REG_PORT##id##_VID_INSERT, \
161 RTL_REG_PORT##id##_TAG_INSERT, \
162 RTL_REG_PORT##id##_LINK, \
163 RTL_REG_PORT##id##_SPEED, \
164 RTL_REG_PORT##id##_NWAY, \
165 RTL_REG_PORT##id##_NRESTART, \
166 RTL_REG_PORT##id##_DUPLEX, \
167 RTL_REG_PORT##id##_RXEN, \
168 RTL_REG_PORT##id##_TXEN
169 RTL_PORT_ENUM(0),
170 RTL_PORT_ENUM(1),
171 RTL_PORT_ENUM(2),
172 RTL_PORT_ENUM(3),
173 RTL_PORT_ENUM(4),
174 RTL_PORT_ENUM(5),
175 };
176
177 static const struct rtl_reg rtl_regs[] = {
178 [RTL_REG_CHIPID] = { 0, 4, 30, 16, 0, 0 },
179 [RTL_REG_CHIPVER] = { 0, 4, 31, 8, 0, 0 },
180 [RTL_REG_CHIPTYPE] = { 0, 4, 31, 2, 8, 0 },
181
182 /* CPU port number */
183 [RTL_REG_CPUPORT] = { 2, 4, 21, 3, 0, 0 },
184 /* Enable CPU port function */
185 [RTL_REG_EN_CPUPORT] = { 3, 2, 21, 1, 15, 1 },
186 /* Enable CPU port tag insertion */
187 [RTL_REG_EN_TAG_OUT] = { 3, 2, 21, 1, 12, 0 },
188 /* Enable CPU port tag removal */
189 [RTL_REG_EN_TAG_CLR] = { 3, 2, 21, 1, 11, 0 },
190 /* Enable CPU port tag checking */
191 [RTL_REG_EN_TAG_IN] = { 0, 4, 21, 1, 7, 0 },
192 [RTL_REG_EN_TRUNK] = { 0, 0, 19, 1, 11, 1 },
193 [RTL_REG_TRUNK_PORTSEL] = { 0, 0, 16, 1, 6, 1 },
194 [RTL_REG_RESET] = { 0, 0, 16, 1, 12, 0 },
195
196 [RTL_REG_TRAP_CPU] = { 3, 2, 22, 1, 6, 0 },
197
198 [RTL_REG_VLAN_TAG_ONLY] = { 0, 0, 16, 1, 8, 1 },
199 [RTL_REG_VLAN_FILTER] = { 0, 0, 16, 1, 9, 1 },
200 [RTL_REG_VLAN_TAG_AWARE] = { 0, 0, 16, 1, 10, 1 },
201 [RTL_REG_VLAN_ENABLE] = { 0, 0, 18, 1, 8, 1 },
202
203 #define RTL_VLAN_REGS(id, phy, page, regofs) \
204 [RTL_REG_VLAN##id##_VID] = { page, phy, 25 + regofs, 12, 0, 0 }, \
205 [RTL_REG_VLAN##id##_PORTMASK] = { page, phy, 24 + regofs, 6, 0, 0 }
206 RTL_VLAN_REGS( 0, 0, 0, 0),
207 RTL_VLAN_REGS( 1, 1, 0, 0),
208 RTL_VLAN_REGS( 2, 2, 0, 0),
209 RTL_VLAN_REGS( 3, 3, 0, 0),
210 RTL_VLAN_REGS( 4, 4, 0, 0),
211 RTL_VLAN_REGS( 5, 0, 1, 2),
212 RTL_VLAN_REGS( 6, 1, 1, 2),
213 RTL_VLAN_REGS( 7, 2, 1, 2),
214 RTL_VLAN_REGS( 8, 3, 1, 2),
215 RTL_VLAN_REGS( 9, 4, 1, 2),
216 RTL_VLAN_REGS(10, 0, 1, 4),
217 RTL_VLAN_REGS(11, 1, 1, 4),
218 RTL_VLAN_REGS(12, 2, 1, 4),
219 RTL_VLAN_REGS(13, 3, 1, 4),
220 RTL_VLAN_REGS(14, 4, 1, 4),
221 RTL_VLAN_REGS(15, 0, 1, 6),
222
223 #define REG_PORT_SETTING(port, phy) \
224 [RTL_REG_PORT##port##_SPEED] = { 0, phy, 0, 1, 13, 0 }, \
225 [RTL_REG_PORT##port##_NWAY] = { 0, phy, 0, 1, 12, 0 }, \
226 [RTL_REG_PORT##port##_NRESTART] = { 0, phy, 0, 1, 9, 0 }, \
227 [RTL_REG_PORT##port##_DUPLEX] = { 0, phy, 0, 1, 8, 0 }, \
228 [RTL_REG_PORT##port##_TXEN] = { 0, phy, 24, 1, 11, 0 }, \
229 [RTL_REG_PORT##port##_RXEN] = { 0, phy, 24, 1, 10, 0 }, \
230 [RTL_REG_PORT##port##_LINK] = { 0, phy, 1, 1, 2, 0 }, \
231 [RTL_REG_PORT##port##_NULL_VID_REPLACE] = { 0, phy, 22, 1, 12, 0 }, \
232 [RTL_REG_PORT##port##_NON_PVID_DISCARD] = { 0, phy, 22, 1, 11, 0 }, \
233 [RTL_REG_PORT##port##_VID_INSERT] = { 0, phy, 22, 2, 9, 0 }, \
234 [RTL_REG_PORT##port##_TAG_INSERT] = { 0, phy, 22, 2, 0, 0 }
235
236 REG_PORT_SETTING(0, 0),
237 REG_PORT_SETTING(1, 1),
238 REG_PORT_SETTING(2, 2),
239 REG_PORT_SETTING(3, 3),
240 REG_PORT_SETTING(4, 4),
241 REG_PORT_SETTING(5, 6),
242
243 #define REG_PORT_PVID(phy, page, regofs) \
244 { page, phy, 24 + regofs, 4, 12, 0 }
245 [RTL_REG_PORT0_PVID] = REG_PORT_PVID(0, 0, 0),
246 [RTL_REG_PORT1_PVID] = REG_PORT_PVID(1, 0, 0),
247 [RTL_REG_PORT2_PVID] = REG_PORT_PVID(2, 0, 0),
248 [RTL_REG_PORT3_PVID] = REG_PORT_PVID(3, 0, 0),
249 [RTL_REG_PORT4_PVID] = REG_PORT_PVID(4, 0, 0),
250 [RTL_REG_PORT5_PVID] = REG_PORT_PVID(0, 1, 2),
251 };
252
253
254 static inline void
255 rtl_set_page(struct rtl_priv *priv, unsigned int page)
256 {
257 struct mii_bus *bus = priv->bus;
258 u16 pgsel;
259
260 if (priv->fixup)
261 return;
262
263 if (priv->page == page)
264 return;
265
266 BUG_ON(page > RTL8306_NUM_PAGES);
267 pgsel = bus->read(bus, 0, RTL8306_REG_PAGE);
268 pgsel &= ~(RTL8306_REG_PAGE_LO | RTL8306_REG_PAGE_HI);
269 if (page & (1 << 0))
270 pgsel |= RTL8306_REG_PAGE_LO;
271 if (!(page & (1 << 1))) /* bit is inverted */
272 pgsel |= RTL8306_REG_PAGE_HI;
273 bus->write(bus, 0, RTL8306_REG_PAGE, pgsel);
274 }
275
276 static inline int
277 rtl_w16(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg, u16 val)
278 {
279 struct rtl_priv *priv = to_rtl(dev);
280 struct mii_bus *bus = priv->bus;
281
282 rtl_set_page(priv, page);
283 bus->write(bus, phy, reg, val);
284 bus->read(bus, phy, reg); /* flush */
285 return 0;
286 }
287
288 static inline int
289 rtl_r16(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg)
290 {
291 struct rtl_priv *priv = to_rtl(dev);
292 struct mii_bus *bus = priv->bus;
293
294 rtl_set_page(priv, page);
295 return bus->read(bus, phy, reg);
296 }
297
298 static inline u16
299 rtl_rmw(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg, u16 mask, u16 val)
300 {
301 struct rtl_priv *priv = to_rtl(dev);
302 struct mii_bus *bus = priv->bus;
303 u16 r;
304
305 rtl_set_page(priv, page);
306 r = bus->read(bus, phy, reg);
307 r &= ~mask;
308 r |= val;
309 bus->write(bus, phy, reg, r);
310 return bus->read(bus, phy, reg); /* flush */
311 }
312
313
314 static inline int
315 rtl_get(struct switch_dev *dev, enum rtl_regidx s)
316 {
317 const struct rtl_reg *r = &rtl_regs[s];
318 u16 val;
319
320 BUG_ON(s >= ARRAY_SIZE(rtl_regs));
321 if (r->bits == 0) /* unimplemented */
322 return 0;
323
324 val = rtl_r16(dev, r->page, r->phy, r->reg);
325
326 if (r->shift > 0)
327 val >>= r->shift;
328
329 if (r->inverted)
330 val = ~val;
331
332 val &= (1 << r->bits) - 1;
333
334 return val;
335 }
336
337 static int
338 rtl_set(struct switch_dev *dev, enum rtl_regidx s, unsigned int val)
339 {
340 const struct rtl_reg *r = &rtl_regs[s];
341 u16 mask = 0xffff;
342
343 BUG_ON(s >= ARRAY_SIZE(rtl_regs));
344
345 if (r->bits == 0) /* unimplemented */
346 return 0;
347
348 if (r->shift > 0)
349 val <<= r->shift;
350
351 if (r->inverted)
352 val = ~val;
353
354 if (r->bits != 16) {
355 mask = (1 << r->bits) - 1;
356 mask <<= r->shift;
357 }
358 val &= mask;
359 return rtl_rmw(dev, r->page, r->phy, r->reg, mask, val);
360 }
361
362 static void
363 rtl_fix_pvids(struct switch_dev *dev)
364 {
365 unsigned int port, vlan, mask;
366
367 for (port = 0; port < RTL8306_NUM_PORTS; port++)
368 {
369 /* skip tagged ports */
370 if (rtl_get(dev, RTL_PORT_REG(port, TAG_INSERT)) != 1)
371 continue;
372
373 for (vlan = 0; vlan < RTL8306_NUM_VLANS; vlan++)
374 {
375 mask = rtl_get(dev, RTL_VLAN_REG(vlan, PORTMASK));
376 /* skip non-members */
377 if (!(mask & (1 << port)))
378 continue;
379
380 rtl_set(dev, RTL_PORT_REG(port, PVID), vlan);
381 /* next port */
382 break;
383 }
384 }
385 }
386
387 static void
388 rtl_phy_save(struct switch_dev *dev, int port, struct rtl_phyregs *regs)
389 {
390 regs->nway = rtl_get(dev, RTL_PORT_REG(port, NWAY));
391 regs->speed = rtl_get(dev, RTL_PORT_REG(port, SPEED));
392 regs->duplex = rtl_get(dev, RTL_PORT_REG(port, DUPLEX));
393 }
394
395 static void
396 rtl_phy_restore(struct switch_dev *dev, int port, struct rtl_phyregs *regs)
397 {
398 rtl_set(dev, RTL_PORT_REG(port, NWAY), regs->nway);
399 rtl_set(dev, RTL_PORT_REG(port, SPEED), regs->speed);
400 rtl_set(dev, RTL_PORT_REG(port, DUPLEX), regs->duplex);
401 }
402
403 static void
404 rtl_port_set_enable(struct switch_dev *dev, int port, int enabled)
405 {
406 rtl_set(dev, RTL_PORT_REG(port, RXEN), enabled);
407 rtl_set(dev, RTL_PORT_REG(port, TXEN), enabled);
408
409 if ((port >= 5) || !enabled)
410 return;
411
412 /* restart autonegotiation if enabled */
413 rtl_set(dev, RTL_PORT_REG(port, NRESTART), 1);
414 }
415
416 static int
417 rtl_hw_apply(struct switch_dev *dev)
418 {
419 int i;
420 int trunk_en, trunk_psel;
421 struct rtl_phyregs port5;
422
423 rtl_phy_save(dev, 5, &port5);
424
425 /* disable rx/tx from PHYs */
426 for (i = 0; i < RTL8306_NUM_PORTS - 1; i++) {
427 rtl_port_set_enable(dev, i, 0);
428 }
429
430 /* save trunking status */
431 trunk_en = rtl_get(dev, RTL_REG_EN_TRUNK);
432 trunk_psel = rtl_get(dev, RTL_REG_TRUNK_PORTSEL);
433
434 /* trunk port 3 and 4
435 * XXX: Big WTF, but RealTek seems to do it */
436 rtl_set(dev, RTL_REG_EN_TRUNK, 1);
437 rtl_set(dev, RTL_REG_TRUNK_PORTSEL, 1);
438
439 /* execute the software reset */
440 rtl_set(dev, RTL_REG_RESET, 1);
441
442 /* wait for the reset to complete,
443 * but don't wait for too long */
444 for (i = 0; i < 10; i++) {
445 if (rtl_get(dev, RTL_REG_RESET) == 0)
446 break;
447
448 msleep(1);
449 }
450
451 /* enable rx/tx from PHYs */
452 for (i = 0; i < RTL8306_NUM_PORTS - 1; i++) {
453 rtl_port_set_enable(dev, i, 1);
454 }
455
456 /* restore trunking settings */
457 rtl_set(dev, RTL_REG_EN_TRUNK, trunk_en);
458 rtl_set(dev, RTL_REG_TRUNK_PORTSEL, trunk_psel);
459 rtl_phy_restore(dev, 5, &port5);
460
461 return 0;
462 }
463
464 static void
465 rtl_hw_init(struct switch_dev *dev)
466 {
467 struct rtl_priv *priv = to_rtl(dev);
468 int i;
469
470 rtl_set(dev, RTL_REG_VLAN_ENABLE, 0);
471 rtl_set(dev, RTL_REG_VLAN_FILTER, 0);
472 rtl_set(dev, RTL_REG_EN_TRUNK, 0);
473 rtl_set(dev, RTL_REG_TRUNK_PORTSEL, 0);
474
475 /* initialize cpu port settings */
476 if (priv->do_cpu) {
477 rtl_set(dev, RTL_REG_CPUPORT, dev->cpu_port);
478 rtl_set(dev, RTL_REG_EN_CPUPORT, 1);
479 } else {
480 rtl_set(dev, RTL_REG_CPUPORT, 7);
481 rtl_set(dev, RTL_REG_EN_CPUPORT, 0);
482 }
483 rtl_set(dev, RTL_REG_EN_TAG_OUT, 0);
484 rtl_set(dev, RTL_REG_EN_TAG_IN, 0);
485 rtl_set(dev, RTL_REG_EN_TAG_CLR, 0);
486
487 /* reset all vlans */
488 for (i = 0; i < RTL8306_NUM_VLANS; i++) {
489 rtl_set(dev, RTL_VLAN_REG(i, VID), i);
490 rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), 0);
491 }
492
493 #ifdef DEBUG
494 /* default to port isolation */
495 for (i = 0; i < RTL8306_NUM_PORTS; i++) {
496 if (i != dev->cpu_port)
497 rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), (1 << dev->cpu_port) | (1 << i));
498 rtl_set(dev, RTL_PORT_REG(i, PVID), i);
499 rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1);
500 rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), 1);
501 rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), 3);
502 }
503 #endif
504 rtl_fix_pvids(dev);
505
506 rtl_hw_apply(dev);
507 }
508
509 #ifdef DEBUG
510 static int
511 rtl_set_use_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
512 {
513 struct rtl_priv *priv = to_rtl(dev);
514 priv->do_cpu = val->value.i;
515 rtl_hw_init(dev);
516 return 0;
517 }
518
519 static int
520 rtl_get_use_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
521 {
522 struct rtl_priv *priv = to_rtl(dev);
523 val->value.i = priv->do_cpu;
524 return 0;
525 }
526
527 static int
528 rtl_set_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
529 {
530 dev->cpu_port = val->value.i;
531 rtl_hw_init(dev);
532 return 0;
533 }
534
535 static int
536 rtl_get_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
537 {
538 val->value.i = dev->cpu_port;
539 return 0;
540 }
541 #endif
542
543 static int
544 rtl_reset(struct switch_dev *dev)
545 {
546 rtl_hw_init(dev);
547 return 0;
548 }
549
550 static int
551 rtl_attr_set_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
552 {
553 int idx = attr->id + (val->port_vlan * attr->ofs);
554 struct rtl_phyregs port;
555
556 if (attr->id >= ARRAY_SIZE(rtl_regs))
557 return -EINVAL;
558
559 if ((attr->max > 0) && (val->value.i > attr->max))
560 return -EINVAL;
561
562 /* access to phy register 22 on port 4/5
563 * needs phy status save/restore */
564 if ((val->port_vlan > 3) &&
565 (rtl_regs[idx].reg == 22) &&
566 (rtl_regs[idx].page == 0)) {
567
568 rtl_phy_save(dev, val->port_vlan, &port);
569 rtl_set(dev, idx, val->value.i);
570 rtl_phy_restore(dev, val->port_vlan, &port);
571 } else {
572 rtl_set(dev, idx, val->value.i);
573 }
574
575 return 0;
576 }
577
578 static int
579 rtl_attr_get_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
580 {
581 int idx = attr->id + (val->port_vlan * attr->ofs);
582
583 if (idx >= ARRAY_SIZE(rtl_regs))
584 return -EINVAL;
585
586 val->value.i = rtl_get(dev, idx);
587 return 0;
588 }
589
590 #ifdef DEBUG
591 static int
592 rtl_attr_set_port_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
593 {
594 if (val->port_vlan >= RTL8306_NUM_PORTS)
595 return -EINVAL;
596
597 return rtl_attr_set_int(dev, attr, val);
598 }
599
600 static int
601 rtl_attr_get_port_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
602 {
603 if (val->port_vlan >= RTL8306_NUM_PORTS)
604 return -EINVAL;
605 return rtl_attr_get_int(dev, attr, val);
606 }
607 #endif
608
609 static int
610 rtl_attr_set_port_pvid(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
611 {
612 unsigned int vlan;
613
614 if (val->port_vlan >= RTL8306_NUM_PORTS)
615 return -EINVAL;
616
617 for (vlan = 0; vlan < RTL8306_NUM_VLANS; vlan++) {
618 if (rtl_get(dev, RTL_VLAN_REG(vlan, VID)) == val->value.i) {
619 rtl_set(dev, RTL_PORT_REG(val->port_vlan, PVID), vlan);
620 break;
621 }
622 }
623
624 return 0;
625 }
626
627 static int
628 rtl_attr_get_port_pvid(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
629 {
630 unsigned int vlan;
631
632 if (val->port_vlan >= RTL8306_NUM_PORTS)
633 return -EINVAL;
634
635 vlan = rtl_get(dev, RTL_PORT_REG(val->port_vlan, PVID));
636 val->value.i = rtl_get(dev, RTL_VLAN_REG(vlan, VID));
637
638 return 0;
639 }
640
641 static int
642 rtl_get_port_link(struct switch_dev *dev, int port, struct switch_port_link *link)
643 {
644 if (port >= RTL8306_NUM_PORTS)
645 return -EINVAL;
646
647 link->link = rtl_get(dev, RTL_PORT_REG(port, LINK));
648 if (!link->link)
649 return 0;
650
651 link->duplex = rtl_get(dev, RTL_PORT_REG(port, DUPLEX));
652 link->aneg = rtl_get(dev, RTL_PORT_REG(port, NWAY));
653
654 if (rtl_get(dev, RTL_PORT_REG(port, SPEED)))
655 link->speed = SWITCH_PORT_SPEED_100;
656 else
657 link->speed = SWITCH_PORT_SPEED_10;
658
659 return 0;
660 }
661
662 static int
663 rtl_attr_set_vlan_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
664 {
665 if (val->port_vlan >= dev->vlans)
666 return -EINVAL;
667
668 return rtl_attr_set_int(dev, attr, val);
669 }
670
671 static int
672 rtl_attr_get_vlan_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
673 {
674 if (val->port_vlan >= dev->vlans)
675 return -EINVAL;
676
677 return rtl_attr_get_int(dev, attr, val);
678 }
679
680 static int
681 rtl_get_ports(struct switch_dev *dev, struct switch_val *val)
682 {
683 unsigned int i, mask;
684
685 mask = rtl_get(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK));
686 for (i = 0; i < RTL8306_NUM_PORTS; i++) {
687 struct switch_port *port;
688
689 if (!(mask & (1 << i)))
690 continue;
691
692 port = &val->value.ports[val->len];
693 port->id = i;
694 if (rtl_get(dev, RTL_PORT_REG(i, TAG_INSERT)) == 2)
695 port->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
696 val->len++;
697 }
698
699 return 0;
700 }
701
702 static int
703 rtl_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
704 {
705 struct rtl_priv *priv = to_rtl(dev);
706 struct rtl_phyregs port;
707 int en = val->value.i;
708 int i;
709
710 rtl_set(dev, RTL_REG_EN_TAG_OUT, en && priv->do_cpu);
711 rtl_set(dev, RTL_REG_EN_TAG_IN, en && priv->do_cpu);
712 rtl_set(dev, RTL_REG_EN_TAG_CLR, en && priv->do_cpu);
713 rtl_set(dev, RTL_REG_VLAN_TAG_AWARE, en);
714 if (en)
715 rtl_set(dev, RTL_REG_VLAN_FILTER, en);
716
717 for (i = 0; i < RTL8306_NUM_PORTS; i++) {
718 if (i > 3)
719 rtl_phy_save(dev, val->port_vlan, &port);
720 rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1);
721 rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), 1);
722 rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), (en ? 1 : 3));
723 if (i > 3)
724 rtl_phy_restore(dev, val->port_vlan, &port);
725 }
726 rtl_set(dev, RTL_REG_VLAN_ENABLE, en);
727
728 rtl_fix_pvids(dev);
729
730 return 0;
731 }
732
733 static int
734 rtl_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
735 {
736 val->value.i = rtl_get(dev, RTL_REG_VLAN_ENABLE);
737 return 0;
738 }
739
740 static int
741 rtl_set_ports(struct switch_dev *dev, struct switch_val *val)
742 {
743 unsigned int mask = 0;
744 int i;
745
746 for(i = 0; i < val->len; i++)
747 {
748 struct switch_port *port = &val->value.ports[i];
749 bool tagged = false;
750
751 mask |= (1 << port->id);
752
753 if (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
754 tagged = true;
755
756 rtl_set(dev, RTL_PORT_REG(port->id, NON_PVID_DISCARD), (tagged ? 0 : 1));
757 rtl_set(dev, RTL_PORT_REG(port->id, VID_INSERT), (tagged ? 0 : 1));
758 rtl_set(dev, RTL_PORT_REG(port->id, TAG_INSERT), (tagged ? 2 : 1));
759 }
760
761 rtl_set(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK), mask);
762
763 rtl_fix_pvids(dev);
764
765 return 0;
766 }
767
768 static struct switch_attr rtl_globals[] = {
769 {
770 .type = SWITCH_TYPE_INT,
771 .name = "enable_vlan",
772 .description = "Enable VLAN mode",
773 .max = 1,
774 .set = rtl_set_vlan,
775 .get = rtl_get_vlan,
776 },
777 {
778 RTL_GLOBAL_REGATTR(EN_TRUNK),
779 .name = "trunk",
780 .description = "Enable port trunking",
781 .max = 1,
782 },
783 {
784 RTL_GLOBAL_REGATTR(TRUNK_PORTSEL),
785 .name = "trunk_sel",
786 .description = "Select ports for trunking (0: 0,1 - 1: 3,4)",
787 .max = 1,
788 },
789 #ifdef DEBUG
790 {
791 RTL_GLOBAL_REGATTR(VLAN_FILTER),
792 .name = "vlan_filter",
793 .description = "Filter incoming packets for allowed VLANS",
794 .max = 1,
795 },
796 {
797 .type = SWITCH_TYPE_INT,
798 .name = "cpuport",
799 .description = "CPU Port",
800 .set = rtl_set_cpuport,
801 .get = rtl_get_cpuport,
802 .max = RTL8306_NUM_PORTS,
803 },
804 {
805 .type = SWITCH_TYPE_INT,
806 .name = "use_cpuport",
807 .description = "CPU Port handling flag",
808 .set = rtl_set_use_cpuport,
809 .get = rtl_get_use_cpuport,
810 .max = RTL8306_NUM_PORTS,
811 },
812 {
813 RTL_GLOBAL_REGATTR(TRAP_CPU),
814 .name = "trap_cpu",
815 .description = "VLAN trap to CPU",
816 .max = 1,
817 },
818 {
819 RTL_GLOBAL_REGATTR(VLAN_TAG_AWARE),
820 .name = "vlan_tag_aware",
821 .description = "Enable VLAN tag awareness",
822 .max = 1,
823 },
824 {
825 RTL_GLOBAL_REGATTR(VLAN_TAG_ONLY),
826 .name = "tag_only",
827 .description = "Only accept tagged packets",
828 .max = 1,
829 },
830 #endif
831 };
832 static struct switch_attr rtl_port[] = {
833 {
834 .type = SWITCH_TYPE_INT,
835 .set = rtl_attr_set_port_pvid,
836 .get = rtl_attr_get_port_pvid,
837 .name = "pvid",
838 .description = "Port VLAN ID",
839 .max = 4095,
840 },
841 #ifdef DEBUG
842 {
843 RTL_PORT_REGATTR(NULL_VID_REPLACE),
844 .name = "null_vid",
845 .description = "NULL VID gets replaced by port default vid",
846 .max = 1,
847 },
848 {
849 RTL_PORT_REGATTR(NON_PVID_DISCARD),
850 .name = "non_pvid_discard",
851 .description = "discard packets with VID != PVID",
852 .max = 1,
853 },
854 {
855 RTL_PORT_REGATTR(VID_INSERT),
856 .name = "vid_insert_remove",
857 .description = "how should the switch insert and remove vids ?",
858 .max = 3,
859 },
860 {
861 RTL_PORT_REGATTR(TAG_INSERT),
862 .name = "tag_insert",
863 .description = "tag insertion handling",
864 .max = 3,
865 },
866 #endif
867 };
868
869 static struct switch_attr rtl_vlan[] = {
870 {
871 RTL_VLAN_REGATTR(VID),
872 .name = "vid",
873 .description = "VLAN ID (1-4095)",
874 .max = 4095,
875 },
876 };
877
878 static const struct switch_dev_ops rtl8306_ops = {
879 .attr_global = {
880 .attr = rtl_globals,
881 .n_attr = ARRAY_SIZE(rtl_globals),
882 },
883 .attr_port = {
884 .attr = rtl_port,
885 .n_attr = ARRAY_SIZE(rtl_port),
886 },
887 .attr_vlan = {
888 .attr = rtl_vlan,
889 .n_attr = ARRAY_SIZE(rtl_vlan),
890 },
891
892 .get_vlan_ports = rtl_get_ports,
893 .set_vlan_ports = rtl_set_ports,
894 .apply_config = rtl_hw_apply,
895 .reset_switch = rtl_reset,
896 .get_port_link = rtl_get_port_link,
897 };
898
899 static int
900 rtl8306_config_init(struct phy_device *pdev)
901 {
902 struct net_device *netdev = pdev->attached_dev;
903 struct rtl_priv *priv = pdev->priv;
904 struct switch_dev *dev = &priv->dev;
905 struct switch_val val;
906 unsigned int chipid, chipver, chiptype;
907 int err;
908
909 /* Only init the switch for the primary PHY */
910 if (pdev->addr != 0)
911 return 0;
912
913 val.value.i = 1;
914 priv->dev.cpu_port = RTL8306_PORT_CPU;
915 priv->dev.ports = RTL8306_NUM_PORTS;
916 priv->dev.vlans = RTL8306_NUM_VLANS;
917 priv->dev.ops = &rtl8306_ops;
918 priv->do_cpu = 0;
919 priv->page = -1;
920 priv->bus = pdev->bus;
921
922 chipid = rtl_get(dev, RTL_REG_CHIPID);
923 chipver = rtl_get(dev, RTL_REG_CHIPVER);
924 chiptype = rtl_get(dev, RTL_REG_CHIPTYPE);
925 switch(chiptype) {
926 case 0:
927 case 2:
928 strncpy(priv->hwname, RTL_NAME_S, sizeof(priv->hwname));
929 priv->type = RTL_TYPE_S;
930 break;
931 case 1:
932 strncpy(priv->hwname, RTL_NAME_SD, sizeof(priv->hwname));
933 priv->type = RTL_TYPE_SD;
934 break;
935 case 3:
936 strncpy(priv->hwname, RTL_NAME_SDM, sizeof(priv->hwname));
937 priv->type = RTL_TYPE_SDM;
938 break;
939 default:
940 strncpy(priv->hwname, RTL_NAME_UNKNOWN, sizeof(priv->hwname));
941 break;
942 }
943
944 dev->name = priv->hwname;
945 rtl_hw_init(dev);
946
947 printk(KERN_INFO "Registering %s switch with Chip ID: 0x%04x, version: 0x%04x\n", priv->hwname, chipid, chipver);
948
949 err = register_switch(dev, netdev);
950 if (err < 0) {
951 kfree(priv);
952 return err;
953 }
954
955 return 0;
956 }
957
958
959 static int
960 rtl8306_fixup(struct phy_device *pdev)
961 {
962 struct rtl_priv priv;
963 u16 chipid;
964
965 /* Attach to primary LAN port and WAN port */
966 if (pdev->addr != 0 && pdev->addr != 4)
967 return 0;
968
969 memset(&priv, 0, sizeof(priv));
970 priv.fixup = true;
971 priv.page = -1;
972 priv.bus = pdev->bus;
973 chipid = rtl_get(&priv.dev, RTL_REG_CHIPID);
974 if (chipid == 0x5988)
975 pdev->phy_id = RTL8306_MAGIC;
976
977 return 0;
978 }
979
980 static int
981 rtl8306_probe(struct phy_device *pdev)
982 {
983 struct rtl_priv *priv;
984
985 list_for_each_entry(priv, &phydevs, list) {
986 /*
987 * share one rtl_priv instance between virtual phy
988 * devices on the same bus
989 */
990 if (priv->bus == pdev->bus)
991 goto found;
992 }
993 priv = kzalloc(sizeof(struct rtl_priv), GFP_KERNEL);
994 if (!priv)
995 return -ENOMEM;
996
997 priv->bus = pdev->bus;
998
999 found:
1000 pdev->priv = priv;
1001 return 0;
1002 }
1003
1004 static void
1005 rtl8306_remove(struct phy_device *pdev)
1006 {
1007 struct rtl_priv *priv = pdev->priv;
1008 unregister_switch(&priv->dev);
1009 kfree(priv);
1010 }
1011
1012 static int
1013 rtl8306_config_aneg(struct phy_device *pdev)
1014 {
1015 struct rtl_priv *priv = pdev->priv;
1016
1017 /* Only for WAN */
1018 if (pdev->addr == 0)
1019 return 0;
1020
1021 /* Restart autonegotiation */
1022 rtl_set(&priv->dev, RTL_PORT_REG(4, NWAY), 1);
1023 rtl_set(&priv->dev, RTL_PORT_REG(4, NRESTART), 1);
1024
1025 return 0;
1026 }
1027
1028 static int
1029 rtl8306_read_status(struct phy_device *pdev)
1030 {
1031 struct rtl_priv *priv = pdev->priv;
1032 struct switch_dev *dev = &priv->dev;
1033
1034 if (pdev->addr == 4) {
1035 /* WAN */
1036 pdev->speed = rtl_get(dev, RTL_PORT_REG(4, SPEED)) ? SPEED_100 : SPEED_10;
1037 pdev->duplex = rtl_get(dev, RTL_PORT_REG(4, DUPLEX)) ? DUPLEX_FULL : DUPLEX_HALF;
1038 pdev->link = !!rtl_get(dev, RTL_PORT_REG(4, LINK));
1039 } else {
1040 /* LAN */
1041 pdev->speed = SPEED_100;
1042 pdev->duplex = DUPLEX_FULL;
1043 pdev->link = 1;
1044 }
1045
1046 /*
1047 * Bypass generic PHY status read,
1048 * it doesn't work with this switch
1049 */
1050 if (pdev->link) {
1051 pdev->state = PHY_RUNNING;
1052 netif_carrier_on(pdev->attached_dev);
1053 pdev->adjust_link(pdev->attached_dev);
1054 } else {
1055 pdev->state = PHY_NOLINK;
1056 netif_carrier_off(pdev->attached_dev);
1057 pdev->adjust_link(pdev->attached_dev);
1058 }
1059
1060 return 0;
1061 }
1062
1063
1064 static struct phy_driver rtl8306_driver = {
1065 .name = "Realtek RTL8306S",
1066 .flags = PHY_HAS_MAGICANEG,
1067 .phy_id = RTL8306_MAGIC,
1068 .phy_id_mask = 0xffffffff,
1069 .features = PHY_BASIC_FEATURES,
1070 .probe = &rtl8306_probe,
1071 .remove = &rtl8306_remove,
1072 .config_init = &rtl8306_config_init,
1073 .config_aneg = &rtl8306_config_aneg,
1074 .read_status = &rtl8306_read_status,
1075 .driver = { .owner = THIS_MODULE,},
1076 };
1077
1078
1079 static int __init
1080 rtl_init(void)
1081 {
1082 phy_register_fixup_for_id(PHY_ANY_ID, rtl8306_fixup);
1083 return phy_driver_register(&rtl8306_driver);
1084 }
1085
1086 static void __exit
1087 rtl_exit(void)
1088 {
1089 phy_driver_unregister(&rtl8306_driver);
1090 }
1091
1092 module_init(rtl_init);
1093 module_exit(rtl_exit);
1094 MODULE_LICENSE("GPL");
1095