projects / openwrt / staging / chunkeey.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
generic: rtl8366: make rtl8366_set_vlan static
[openwrt/staging/chunkeey.git] / target / linux / generic / files / drivers / net / phy / rtl8366_smi.c
1 /*
2 * Realtek RTL8366 SMI interface driver
3 *
4 * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
9 */
10
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/device.h>
14 #include <linux/delay.h>
15 #include <linux/gpio.h>
16 #include <linux/spinlock.h>
17 #include <linux/skbuff.h>
18
19 #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
20 #include <linux/debugfs.h>
21 #endif
22
23 #include "rtl8366_smi.h"
24
25 #define RTL8366_SMI_ACK_RETRY_COUNT 5
26 #define RTL8366_SMI_CLK_DELAY 10 /* nsec */
27
28 static inline void rtl8366_smi_clk_delay(struct rtl8366_smi *smi)
29 {
30 ndelay(RTL8366_SMI_CLK_DELAY);
31 }
32
33 static void rtl8366_smi_start(struct rtl8366_smi *smi)
34 {
35 unsigned int sda = smi->gpio_sda;
36 unsigned int sck = smi->gpio_sck;
37
38 /*
39 * Set GPIO pins to output mode, with initial state:
40 * SCK = 0, SDA = 1
41 */
42 gpio_direction_output(sck, 0);
43 gpio_direction_output(sda, 1);
44 rtl8366_smi_clk_delay(smi);
45
46 /* CLK 1: 0 -> 1, 1 -> 0 */
47 gpio_set_value(sck, 1);
48 rtl8366_smi_clk_delay(smi);
49 gpio_set_value(sck, 0);
50 rtl8366_smi_clk_delay(smi);
51
52 /* CLK 2: */
53 gpio_set_value(sck, 1);
54 rtl8366_smi_clk_delay(smi);
55 gpio_set_value(sda, 0);
56 rtl8366_smi_clk_delay(smi);
57 gpio_set_value(sck, 0);
58 rtl8366_smi_clk_delay(smi);
59 gpio_set_value(sda, 1);
60 }
61
62 static void rtl8366_smi_stop(struct rtl8366_smi *smi)
63 {
64 unsigned int sda = smi->gpio_sda;
65 unsigned int sck = smi->gpio_sck;
66
67 rtl8366_smi_clk_delay(smi);
68 gpio_set_value(sda, 0);
69 gpio_set_value(sck, 1);
70 rtl8366_smi_clk_delay(smi);
71 gpio_set_value(sda, 1);
72 rtl8366_smi_clk_delay(smi);
73 gpio_set_value(sck, 1);
74 rtl8366_smi_clk_delay(smi);
75 gpio_set_value(sck, 0);
76 rtl8366_smi_clk_delay(smi);
77 gpio_set_value(sck, 1);
78
79 /* add a click */
80 rtl8366_smi_clk_delay(smi);
81 gpio_set_value(sck, 0);
82 rtl8366_smi_clk_delay(smi);
83 gpio_set_value(sck, 1);
84
85 /* set GPIO pins to input mode */
86 gpio_direction_input(sda);
87 gpio_direction_input(sck);
88 }
89
90 static void rtl8366_smi_write_bits(struct rtl8366_smi *smi, u32 data, u32 len)
91 {
92 unsigned int sda = smi->gpio_sda;
93 unsigned int sck = smi->gpio_sck;
94
95 for (; len > 0; len--) {
96 rtl8366_smi_clk_delay(smi);
97
98 /* prepare data */
99 gpio_set_value(sda, !!(data & ( 1 << (len - 1))));
100 rtl8366_smi_clk_delay(smi);
101
102 /* clocking */
103 gpio_set_value(sck, 1);
104 rtl8366_smi_clk_delay(smi);
105 gpio_set_value(sck, 0);
106 }
107 }
108
109 static void rtl8366_smi_read_bits(struct rtl8366_smi *smi, u32 len, u32 *data)
110 {
111 unsigned int sda = smi->gpio_sda;
112 unsigned int sck = smi->gpio_sck;
113
114 gpio_direction_input(sda);
115
116 for (*data = 0; len > 0; len--) {
117 u32 u;
118
119 rtl8366_smi_clk_delay(smi);
120
121 /* clocking */
122 gpio_set_value(sck, 1);
123 rtl8366_smi_clk_delay(smi);
124 u = !!gpio_get_value(sda);
125 gpio_set_value(sck, 0);
126
127 *data |= (u << (len - 1));
128 }
129
130 gpio_direction_output(sda, 0);
131 }
132
133 static int rtl8366_smi_wait_for_ack(struct rtl8366_smi *smi)
134 {
135 int retry_cnt;
136
137 retry_cnt = 0;
138 do {
139 u32 ack;
140
141 rtl8366_smi_read_bits(smi, 1, &ack);
142 if (ack == 0)
143 break;
144
145 if (++retry_cnt > RTL8366_SMI_ACK_RETRY_COUNT)
146 return -EIO;
147 } while (1);
148
149 return 0;
150 }
151
152 static int rtl8366_smi_write_byte(struct rtl8366_smi *smi, u8 data)
153 {
154 rtl8366_smi_write_bits(smi, data, 8);
155 return rtl8366_smi_wait_for_ack(smi);
156 }
157
158 static int rtl8366_smi_read_byte0(struct rtl8366_smi *smi, u8 *data)
159 {
160 u32 t;
161
162 /* read data */
163 rtl8366_smi_read_bits(smi, 8, &t);
164 *data = (t & 0xff);
165
166 /* send an ACK */
167 rtl8366_smi_write_bits(smi, 0x00, 1);
168
169 return 0;
170 }
171
172 static int rtl8366_smi_read_byte1(struct rtl8366_smi *smi, u8 *data)
173 {
174 u32 t;
175
176 /* read data */
177 rtl8366_smi_read_bits(smi, 8, &t);
178 *data = (t & 0xff);
179
180 /* send an ACK */
181 rtl8366_smi_write_bits(smi, 0x01, 1);
182
183 return 0;
184 }
185
186 int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
187 {
188 unsigned long flags;
189 u8 lo = 0;
190 u8 hi = 0;
191 int ret;
192
193 spin_lock_irqsave(&smi->lock, flags);
194
195 rtl8366_smi_start(smi);
196
197 /* send READ command */
198 ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x01);
199 if (ret)
200 goto out;
201
202 /* set ADDR[7:0] */
203 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
204 if (ret)
205 goto out;
206
207 /* set ADDR[15:8] */
208 ret = rtl8366_smi_write_byte(smi, addr >> 8);
209 if (ret)
210 goto out;
211
212 /* read DATA[7:0] */
213 rtl8366_smi_read_byte0(smi, &lo);
214 /* read DATA[15:8] */
215 rtl8366_smi_read_byte1(smi, &hi);
216
217 *data = ((u32) lo) | (((u32) hi) << 8);
218
219 ret = 0;
220
221 out:
222 rtl8366_smi_stop(smi);
223 spin_unlock_irqrestore(&smi->lock, flags);
224
225 return ret;
226 }
227 EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg);
228
229 int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
230 {
231 unsigned long flags;
232 int ret;
233
234 spin_lock_irqsave(&smi->lock, flags);
235
236 rtl8366_smi_start(smi);
237
238 /* send WRITE command */
239 ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x00);
240 if (ret)
241 goto out;
242
243 /* set ADDR[7:0] */
244 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
245 if (ret)
246 goto out;
247
248 /* set ADDR[15:8] */
249 ret = rtl8366_smi_write_byte(smi, addr >> 8);
250 if (ret)
251 goto out;
252
253 /* write DATA[7:0] */
254 ret = rtl8366_smi_write_byte(smi, data & 0xff);
255 if (ret)
256 goto out;
257
258 /* write DATA[15:8] */
259 ret = rtl8366_smi_write_byte(smi, data >> 8);
260 if (ret)
261 goto out;
262
263 ret = 0;
264
265 out:
266 rtl8366_smi_stop(smi);
267 spin_unlock_irqrestore(&smi->lock, flags);
268
269 return ret;
270 }
271 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg);
272
273 int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data)
274 {
275 u32 t;
276 int err;
277
278 err = rtl8366_smi_read_reg(smi, addr, &t);
279 if (err)
280 return err;
281
282 err = rtl8366_smi_write_reg(smi, addr, (t & ~mask) | data);
283 return err;
284
285 }
286 EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr);
287
288 static int rtl8366_mc_is_used(struct rtl8366_smi *smi, int mc_index, int *used)
289 {
290 int err;
291 int i;
292
293 *used = 0;
294 for (i = 0; i < smi->num_ports; i++) {
295 int index = 0;
296
297 err = smi->ops->get_mc_index(smi, i, &index);
298 if (err)
299 return err;
300
301 if (mc_index == index) {
302 *used = 1;
303 break;
304 }
305 }
306
307 return 0;
308 }
309
310 static int rtl8366_set_vlan(struct rtl8366_smi *smi, int vid, u32 member,
311 u32 untag, u32 fid)
312 {
313 struct rtl8366_vlan_4k vlan4k;
314 int err;
315 int i;
316
317 /* Update the 4K table */
318 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
319 if (err)
320 return err;
321
322 vlan4k.member = member;
323 vlan4k.untag = untag;
324 vlan4k.fid = fid;
325 err = smi->ops->set_vlan_4k(smi, &vlan4k);
326 if (err)
327 return err;
328
329 /* Try to find an existing MC entry for this VID */
330 for (i = 0; i < smi->num_vlan_mc; i++) {
331 struct rtl8366_vlan_mc vlanmc;
332
333 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
334 if (err)
335 return err;
336
337 if (vid == vlanmc.vid) {
338 /* update the MC entry */
339 vlanmc.member = member;
340 vlanmc.untag = untag;
341 vlanmc.fid = fid;
342
343 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
344 break;
345 }
346 }
347
348 return err;
349 }
350
351 static int rtl8366_get_pvid(struct rtl8366_smi *smi, int port, int *val)
352 {
353 struct rtl8366_vlan_mc vlanmc;
354 int err;
355 int index;
356
357 err = smi->ops->get_mc_index(smi, port, &index);
358 if (err)
359 return err;
360
361 err = smi->ops->get_vlan_mc(smi, index, &vlanmc);
362 if (err)
363 return err;
364
365 *val = vlanmc.vid;
366 return 0;
367 }
368
369 static int rtl8366_set_pvid(struct rtl8366_smi *smi, unsigned port,
370 unsigned vid)
371 {
372 struct rtl8366_vlan_mc vlanmc;
373 struct rtl8366_vlan_4k vlan4k;
374 int err;
375 int i;
376
377 /* Try to find an existing MC entry for this VID */
378 for (i = 0; i < smi->num_vlan_mc; i++) {
379 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
380 if (err)
381 return err;
382
383 if (vid == vlanmc.vid) {
384 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
385 if (err)
386 return err;
387
388 err = smi->ops->set_mc_index(smi, port, i);
389 return err;
390 }
391 }
392
393 /* We have no MC entry for this VID, try to find an empty one */
394 for (i = 0; i < smi->num_vlan_mc; i++) {
395 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
396 if (err)
397 return err;
398
399 if (vlanmc.vid == 0 && vlanmc.member == 0) {
400 /* Update the entry from the 4K table */
401 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
402 if (err)
403 return err;
404
405 vlanmc.vid = vid;
406 vlanmc.member = vlan4k.member;
407 vlanmc.untag = vlan4k.untag;
408 vlanmc.fid = vlan4k.fid;
409 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
410 if (err)
411 return err;
412
413 err = smi->ops->set_mc_index(smi, port, i);
414 return err;
415 }
416 }
417
418 /* MC table is full, try to find an unused entry and replace it */
419 for (i = 0; i < smi->num_vlan_mc; i++) {
420 int used;
421
422 err = rtl8366_mc_is_used(smi, i, &used);
423 if (err)
424 return err;
425
426 if (!used) {
427 /* Update the entry from the 4K table */
428 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
429 if (err)
430 return err;
431
432 vlanmc.vid = vid;
433 vlanmc.member = vlan4k.member;
434 vlanmc.untag = vlan4k.untag;
435 vlanmc.fid = vlan4k.fid;
436 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
437 if (err)
438 return err;
439
440 err = smi->ops->set_mc_index(smi, port, i);
441 return err;
442 }
443 }
444
445 dev_err(smi->parent,
446 "all VLAN member configurations are in use\n");
447
448 return -ENOSPC;
449 }
450
451 int rtl8366_reset_vlan(struct rtl8366_smi *smi)
452 {
453 struct rtl8366_vlan_mc vlanmc;
454 int err;
455 int i;
456
457 /* clear VLAN member configurations */
458 vlanmc.vid = 0;
459 vlanmc.priority = 0;
460 vlanmc.member = 0;
461 vlanmc.untag = 0;
462 vlanmc.fid = 0;
463 for (i = 0; i < smi->num_vlan_mc; i++) {
464 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
465 if (err)
466 return err;
467 }
468
469 for (i = 0; i < smi->num_ports; i++) {
470 if (i == smi->cpu_port)
471 continue;
472
473 err = rtl8366_set_vlan(smi, (i + 1),
474 (1 << i) | (1 << smi->cpu_port),
475 (1 << i) | (1 << smi->cpu_port),
476 0);
477 if (err)
478 return err;
479
480 err = rtl8366_set_pvid(smi, i, (i + 1));
481 if (err)
482 return err;
483 }
484
485 return 0;
486 }
487 EXPORT_SYMBOL_GPL(rtl8366_reset_vlan);
488
489 #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
490 int rtl8366_debugfs_open(struct inode *inode, struct file *file)
491 {
492 file->private_data = inode->i_private;
493 return 0;
494 }
495 EXPORT_SYMBOL_GPL(rtl8366_debugfs_open);
496
497 static ssize_t rtl8366_read_debugfs_vlan_mc(struct file *file,
498 char __user *user_buf,
499 size_t count, loff_t *ppos)
500 {
501 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
502 int i, len = 0;
503 char *buf = smi->buf;
504
505 len += snprintf(buf + len, sizeof(smi->buf) - len,
506 "%2s %6s %4s %6s %6s %3s\n",
507 "id", "vid","prio", "member", "untag", "fid");
508
509 for (i = 0; i < smi->num_vlan_mc; ++i) {
510 struct rtl8366_vlan_mc vlanmc;
511
512 smi->ops->get_vlan_mc(smi, i, &vlanmc);
513
514 len += snprintf(buf + len, sizeof(smi->buf) - len,
515 "%2d %6d %4d 0x%04x 0x%04x %3d\n",
516 i, vlanmc.vid, vlanmc.priority,
517 vlanmc.member, vlanmc.untag, vlanmc.fid);
518 }
519
520 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
521 }
522
523 static ssize_t rtl8366_read_debugfs_reg(struct file *file,
524 char __user *user_buf,
525 size_t count, loff_t *ppos)
526 {
527 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
528 u32 t, reg = smi->dbg_reg;
529 int err, len = 0;
530 char *buf = smi->buf;
531
532 memset(buf, '\0', sizeof(smi->buf));
533
534 err = rtl8366_smi_read_reg(smi, reg, &t);
535 if (err) {
536 len += snprintf(buf, sizeof(smi->buf),
537 "Read failed (reg: 0x%04x)\n", reg);
538 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
539 }
540
541 len += snprintf(buf, sizeof(smi->buf), "reg = 0x%04x, val = 0x%04x\n",
542 reg, t);
543
544 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
545 }
546
547 static ssize_t rtl8366_write_debugfs_reg(struct file *file,
548 const char __user *user_buf,
549 size_t count, loff_t *ppos)
550 {
551 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
552 unsigned long data;
553 u32 reg = smi->dbg_reg;
554 int err;
555 size_t len;
556 char *buf = smi->buf;
557
558 len = min(count, sizeof(smi->buf) - 1);
559 if (copy_from_user(buf, user_buf, len)) {
560 dev_err(smi->parent, "copy from user failed\n");
561 return -EFAULT;
562 }
563
564 buf[len] = '\0';
565 if (len > 0 && buf[len - 1] == '\n')
566 buf[len - 1] = '\0';
567
568
569 if (strict_strtoul(buf, 16, &data)) {
570 dev_err(smi->parent, "Invalid reg value %s\n", buf);
571 } else {
572 err = rtl8366_smi_write_reg(smi, reg, data);
573 if (err) {
574 dev_err(smi->parent,
575 "writing reg 0x%04x val 0x%04lx failed\n",
576 reg, data);
577 }
578 }
579
580 return count;
581 }
582
583 static ssize_t rtl8366_read_debugfs_mibs(struct file *file,
584 char __user *user_buf,
585 size_t count, loff_t *ppos)
586 {
587 struct rtl8366_smi *smi = file->private_data;
588 int i, j, len = 0;
589 char *buf = smi->buf;
590
591 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s",
592 "Counter");
593
594 for (i = 0; i < smi->num_ports; i++) {
595 char port_buf[10];
596
597 snprintf(port_buf, sizeof(port_buf), "Port %d", i);
598 len += snprintf(buf + len, sizeof(smi->buf) - len, " %12s",
599 port_buf);
600 }
601 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
602
603 for (i = 0; i < smi->num_mib_counters; i++) {
604 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s ",
605 smi->mib_counters[i].name);
606 for (j = 0; j < smi->num_ports; j++) {
607 unsigned long long counter = 0;
608
609 if (!smi->ops->get_mib_counter(smi, i, j, &counter))
610 len += snprintf(buf + len,
611 sizeof(smi->buf) - len,
612 "%12llu ", counter);
613 else
614 len += snprintf(buf + len,
615 sizeof(smi->buf) - len,
616 "%12s ", "error");
617 }
618 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
619 }
620
621 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
622 }
623
624 static const struct file_operations fops_rtl8366_regs = {
625 .read = rtl8366_read_debugfs_reg,
626 .write = rtl8366_write_debugfs_reg,
627 .open = rtl8366_debugfs_open,
628 .owner = THIS_MODULE
629 };
630
631 static const struct file_operations fops_rtl8366_vlan_mc = {
632 .read = rtl8366_read_debugfs_vlan_mc,
633 .open = rtl8366_debugfs_open,
634 .owner = THIS_MODULE
635 };
636
637 static const struct file_operations fops_rtl8366_mibs = {
638 .read = rtl8366_read_debugfs_mibs,
639 .open = rtl8366_debugfs_open,
640 .owner = THIS_MODULE
641 };
642
643 static void rtl8366_debugfs_init(struct rtl8366_smi *smi)
644 {
645 struct dentry *node;
646 struct dentry *root;
647
648 if (!smi->debugfs_root)
649 smi->debugfs_root = debugfs_create_dir(dev_name(smi->parent),
650 NULL);
651
652 if (!smi->debugfs_root) {
653 dev_err(smi->parent, "Unable to create debugfs dir\n");
654 return;
655 }
656 root = smi->debugfs_root;
657
658 node = debugfs_create_x16("reg", S_IRUGO | S_IWUSR, root,
659 &smi->dbg_reg);
660 if (!node) {
661 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
662 "reg");
663 return;
664 }
665
666 node = debugfs_create_file("val", S_IRUGO | S_IWUSR, root, smi,
667 &fops_rtl8366_regs);
668 if (!node) {
669 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
670 "val");
671 return;
672 }
673
674 node = debugfs_create_file("vlan_mc", S_IRUSR, root, smi,
675 &fops_rtl8366_vlan_mc);
676 if (!node) {
677 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
678 "vlan_mc");
679 return;
680 }
681
682 node = debugfs_create_file("mibs", S_IRUSR, smi->debugfs_root, smi,
683 &fops_rtl8366_mibs);
684 if (!node)
685 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
686 "mibs");
687 }
688
689 static void rtl8366_debugfs_remove(struct rtl8366_smi *smi)
690 {
691 if (smi->debugfs_root) {
692 debugfs_remove_recursive(smi->debugfs_root);
693 smi->debugfs_root = NULL;
694 }
695 }
696 #else
697 static inline void rtl8366_debugfs_init(struct rtl8366_smi *smi) {}
698 static inline void rtl8366_debugfs_remove(struct rtl8366_smi *smi) {}
699 #endif /* CONFIG_RTL8366S_PHY_DEBUG_FS */
700
701 static int rtl8366_smi_mii_init(struct rtl8366_smi *smi)
702 {
703 int ret;
704 int i;
705
706 smi->mii_bus = mdiobus_alloc();
707 if (smi->mii_bus == NULL) {
708 ret = -ENOMEM;
709 goto err;
710 }
711
712 smi->mii_bus->priv = (void *) smi;
713 smi->mii_bus->name = dev_name(smi->parent);
714 smi->mii_bus->read = smi->ops->mii_read;
715 smi->mii_bus->write = smi->ops->mii_write;
716 snprintf(smi->mii_bus->id, MII_BUS_ID_SIZE, "%s",
717 dev_name(smi->parent));
718 smi->mii_bus->parent = smi->parent;
719 smi->mii_bus->phy_mask = ~(0x1f);
720 smi->mii_bus->irq = smi->mii_irq;
721 for (i = 0; i < PHY_MAX_ADDR; i++)
722 smi->mii_irq[i] = PHY_POLL;
723
724 ret = mdiobus_register(smi->mii_bus);
725 if (ret)
726 goto err_free;
727
728 return 0;
729
730 err_free:
731 mdiobus_free(smi->mii_bus);
732 err:
733 return ret;
734 }
735
736 static void rtl8366_smi_mii_cleanup(struct rtl8366_smi *smi)
737 {
738 mdiobus_unregister(smi->mii_bus);
739 mdiobus_free(smi->mii_bus);
740 }
741
742 int rtl8366_sw_get_port_pvid(struct switch_dev *dev, int port, int *val)
743 {
744 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
745 return rtl8366_get_pvid(smi, port, val);
746 }
747 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_pvid);
748
749 int rtl8366_sw_set_port_pvid(struct switch_dev *dev, int port, int val)
750 {
751 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
752 return rtl8366_set_pvid(smi, port, val);
753 }
754 EXPORT_SYMBOL_GPL(rtl8366_sw_set_port_pvid);
755
756 int rtl8366_sw_get_port_mib(struct switch_dev *dev,
757 const struct switch_attr *attr,
758 struct switch_val *val)
759 {
760 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
761 int i, len = 0;
762 unsigned long long counter = 0;
763 char *buf = smi->buf;
764
765 if (val->port_vlan >= smi->num_ports)
766 return -EINVAL;
767
768 len += snprintf(buf + len, sizeof(smi->buf) - len,
769 "Port %d MIB counters\n",
770 val->port_vlan);
771
772 for (i = 0; i < smi->num_mib_counters; ++i) {
773 len += snprintf(buf + len, sizeof(smi->buf) - len,
774 "%-36s: ", smi->mib_counters[i].name);
775 if (!smi->ops->get_mib_counter(smi, i, val->port_vlan,
776 &counter))
777 len += snprintf(buf + len, sizeof(smi->buf) - len,
778 "%llu\n", counter);
779 else
780 len += snprintf(buf + len, sizeof(smi->buf) - len,
781 "%s\n", "error");
782 }
783
784 val->value.s = buf;
785 val->len = len;
786 return 0;
787 }
788 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib);
789
790 int rtl8366_sw_get_vlan_info(struct switch_dev *dev,
791 const struct switch_attr *attr,
792 struct switch_val *val)
793 {
794 int i;
795 u32 len = 0;
796 struct rtl8366_vlan_4k vlan4k;
797 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
798 char *buf = smi->buf;
799 int err;
800
801 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
802 return -EINVAL;
803
804 memset(buf, '\0', sizeof(smi->buf));
805
806 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
807 if (err)
808 return err;
809
810 len += snprintf(buf + len, sizeof(smi->buf) - len,
811 "VLAN %d: Ports: '", vlan4k.vid);
812
813 for (i = 0; i < smi->num_ports; i++) {
814 if (!(vlan4k.member & (1 << i)))
815 continue;
816
817 len += snprintf(buf + len, sizeof(smi->buf) - len, "%d%s", i,
818 (vlan4k.untag & (1 << i)) ? "" : "t");
819 }
820
821 len += snprintf(buf + len, sizeof(smi->buf) - len,
822 "', members=%04x, untag=%04x, fid=%u",
823 vlan4k.member, vlan4k.untag, vlan4k.fid);
824
825 val->value.s = buf;
826 val->len = len;
827
828 return 0;
829 }
830 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_info);
831
832 int rtl8366_sw_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
833 {
834 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
835 struct switch_port *port;
836 struct rtl8366_vlan_4k vlan4k;
837 int i;
838
839 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
840 return -EINVAL;
841
842 smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
843
844 port = &val->value.ports[0];
845 val->len = 0;
846 for (i = 0; i < smi->num_ports; i++) {
847 if (!(vlan4k.member & BIT(i)))
848 continue;
849
850 port->id = i;
851 port->flags = (vlan4k.untag & BIT(i)) ?
852 0 : BIT(SWITCH_PORT_FLAG_TAGGED);
853 val->len++;
854 port++;
855 }
856 return 0;
857 }
858 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_ports);
859
860 int rtl8366_sw_set_vlan_ports(struct switch_dev *dev, struct switch_val *val)
861 {
862 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
863 struct switch_port *port;
864 u32 member = 0;
865 u32 untag = 0;
866 int i;
867
868 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
869 return -EINVAL;
870
871 port = &val->value.ports[0];
872 for (i = 0; i < val->len; i++, port++) {
873 member |= BIT(port->id);
874
875 if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED)))
876 untag |= BIT(port->id);
877 }
878
879 return rtl8366_set_vlan(smi, val->port_vlan, member, untag, 0);
880 }
881 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_ports);
882
883 struct rtl8366_smi *rtl8366_smi_alloc(struct device *parent)
884 {
885 struct rtl8366_smi *smi;
886
887 BUG_ON(!parent);
888
889 smi = kzalloc(sizeof(*smi), GFP_KERNEL);
890 if (!smi) {
891 dev_err(parent, "no memory for private data\n");
892 return NULL;
893 }
894
895 smi->parent = parent;
896 return smi;
897 }
898 EXPORT_SYMBOL_GPL(rtl8366_smi_alloc);
899
900 int rtl8366_smi_init(struct rtl8366_smi *smi)
901 {
902 int err;
903
904 if (!smi->ops)
905 return -EINVAL;
906
907 err = gpio_request(smi->gpio_sda, dev_name(smi->parent));
908 if (err) {
909 dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
910 smi->gpio_sda, err);
911 goto err_out;
912 }
913
914 err = gpio_request(smi->gpio_sck, dev_name(smi->parent));
915 if (err) {
916 dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
917 smi->gpio_sck, err);
918 goto err_free_sda;
919 }
920
921 spin_lock_init(&smi->lock);
922
923 dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n",
924 smi->gpio_sda, smi->gpio_sck);
925
926 err = smi->ops->detect(smi);
927 if (err) {
928 dev_err(smi->parent, "chip detection failed, err=%d\n", err);
929 goto err_free_sck;
930 }
931
932 err = smi->ops->setup(smi);
933 if (err) {
934 dev_err(smi->parent, "chip setup failed, err=%d\n", err);
935 goto err_free_sck;
936 }
937
938 err = rtl8366_smi_mii_init(smi);
939 if (err)
940 goto err_free_sck;
941
942 rtl8366_debugfs_init(smi);
943
944 return 0;
945
946 err_free_sck:
947 gpio_free(smi->gpio_sck);
948 err_free_sda:
949 gpio_free(smi->gpio_sda);
950 err_out:
951 return err;
952 }
953 EXPORT_SYMBOL_GPL(rtl8366_smi_init);
954
955 void rtl8366_smi_cleanup(struct rtl8366_smi *smi)
956 {
957 rtl8366_debugfs_remove(smi);
958 rtl8366_smi_mii_cleanup(smi);
959 gpio_free(smi->gpio_sck);
960 gpio_free(smi->gpio_sda);
961 }
962 EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
963
964 MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
965 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
966 MODULE_LICENSE("GPL v2");
Staging tree of Christian Lamparter