2 * Realtek RTL8366 SMI interface driver
4 * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
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.
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>
19 #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
20 #include <linux/debugfs.h>
23 #include "rtl8366_smi.h"
25 #define RTL8366_SMI_ACK_RETRY_COUNT 5
26 #define RTL8366_SMI_CLK_DELAY 10 /* nsec */
28 static inline void rtl8366_smi_clk_delay(struct rtl8366_smi *smi)
30 ndelay(RTL8366_SMI_CLK_DELAY);
33 static void rtl8366_smi_start(struct rtl8366_smi *smi)
35 unsigned int sda = smi->gpio_sda;
36 unsigned int sck = smi->gpio_sck;
39 * Set GPIO pins to output mode, with initial state:
42 gpio_direction_output(sck, 0);
43 gpio_direction_output(sda, 1);
44 rtl8366_smi_clk_delay(smi);
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);
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);
62 static void rtl8366_smi_stop(struct rtl8366_smi *smi)
64 unsigned int sda = smi->gpio_sda;
65 unsigned int sck = smi->gpio_sck;
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);
80 rtl8366_smi_clk_delay(smi);
81 gpio_set_value(sck, 0);
82 rtl8366_smi_clk_delay(smi);
83 gpio_set_value(sck, 1);
85 /* set GPIO pins to input mode */
86 gpio_direction_input(sda);
87 gpio_direction_input(sck);
90 static void rtl8366_smi_write_bits(struct rtl8366_smi *smi, u32 data, u32 len)
92 unsigned int sda = smi->gpio_sda;
93 unsigned int sck = smi->gpio_sck;
95 for (; len > 0; len--) {
96 rtl8366_smi_clk_delay(smi);
99 gpio_set_value(sda, !!(data & ( 1 << (len - 1))));
100 rtl8366_smi_clk_delay(smi);
103 gpio_set_value(sck, 1);
104 rtl8366_smi_clk_delay(smi);
105 gpio_set_value(sck, 0);
109 static void rtl8366_smi_read_bits(struct rtl8366_smi *smi, u32 len, u32 *data)
111 unsigned int sda = smi->gpio_sda;
112 unsigned int sck = smi->gpio_sck;
114 gpio_direction_input(sda);
116 for (*data = 0; len > 0; len--) {
119 rtl8366_smi_clk_delay(smi);
122 gpio_set_value(sck, 1);
123 rtl8366_smi_clk_delay(smi);
124 u = !!gpio_get_value(sda);
125 gpio_set_value(sck, 0);
127 *data |= (u << (len - 1));
130 gpio_direction_output(sda, 0);
133 static int rtl8366_smi_wait_for_ack(struct rtl8366_smi *smi)
141 rtl8366_smi_read_bits(smi, 1, &ack);
145 if (++retry_cnt > RTL8366_SMI_ACK_RETRY_COUNT)
152 static int rtl8366_smi_write_byte(struct rtl8366_smi *smi, u8 data)
154 rtl8366_smi_write_bits(smi, data, 8);
155 return rtl8366_smi_wait_for_ack(smi);
158 static int rtl8366_smi_read_byte0(struct rtl8366_smi *smi, u8 *data)
163 rtl8366_smi_read_bits(smi, 8, &t);
167 rtl8366_smi_write_bits(smi, 0x00, 1);
172 static int rtl8366_smi_read_byte1(struct rtl8366_smi *smi, u8 *data)
177 rtl8366_smi_read_bits(smi, 8, &t);
181 rtl8366_smi_write_bits(smi, 0x01, 1);
186 int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
193 spin_lock_irqsave(&smi->lock, flags);
195 rtl8366_smi_start(smi);
197 /* send READ command */
198 ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x01);
203 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
208 ret = rtl8366_smi_write_byte(smi, addr >> 8);
213 rtl8366_smi_read_byte0(smi, &lo);
214 /* read DATA[15:8] */
215 rtl8366_smi_read_byte1(smi, &hi);
217 *data = ((u32) lo) | (((u32) hi) << 8);
222 rtl8366_smi_stop(smi);
223 spin_unlock_irqrestore(&smi->lock, flags);
227 EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg);
229 int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
234 spin_lock_irqsave(&smi->lock, flags);
236 rtl8366_smi_start(smi);
238 /* send WRITE command */
239 ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x00);
244 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
249 ret = rtl8366_smi_write_byte(smi, addr >> 8);
253 /* write DATA[7:0] */
254 ret = rtl8366_smi_write_byte(smi, data & 0xff);
258 /* write DATA[15:8] */
259 ret = rtl8366_smi_write_byte(smi, data >> 8);
266 rtl8366_smi_stop(smi);
267 spin_unlock_irqrestore(&smi->lock, flags);
271 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg);
273 int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data)
278 err = rtl8366_smi_read_reg(smi, addr, &t);
282 err = rtl8366_smi_write_reg(smi, addr, (t & ~mask) | data);
286 EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr);
288 static int rtl8366_mc_is_used(struct rtl8366_smi *smi, int mc_index, int *used)
294 for (i = 0; i < smi->num_ports; i++) {
297 err = smi->ops->get_mc_index(smi, i, &index);
301 if (mc_index == index) {
310 static int rtl8366_set_vlan(struct rtl8366_smi *smi, int vid, u32 member,
313 struct rtl8366_vlan_4k vlan4k;
317 /* Update the 4K table */
318 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
322 vlan4k.member = member;
323 vlan4k.untag = untag;
325 err = smi->ops->set_vlan_4k(smi, &vlan4k);
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;
333 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
337 if (vid == vlanmc.vid) {
338 /* update the MC entry */
339 vlanmc.member = member;
340 vlanmc.untag = untag;
343 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
351 static int rtl8366_get_pvid(struct rtl8366_smi *smi, int port, int *val)
353 struct rtl8366_vlan_mc vlanmc;
357 err = smi->ops->get_mc_index(smi, port, &index);
361 err = smi->ops->get_vlan_mc(smi, index, &vlanmc);
369 static int rtl8366_set_pvid(struct rtl8366_smi *smi, unsigned port,
372 struct rtl8366_vlan_mc vlanmc;
373 struct rtl8366_vlan_4k vlan4k;
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);
383 if (vid == vlanmc.vid) {
384 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
388 err = smi->ops->set_mc_index(smi, port, i);
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);
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);
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);
413 err = smi->ops->set_mc_index(smi, port, i);
418 /* MC table is full, try to find an unused entry and replace it */
419 for (i = 0; i < smi->num_vlan_mc; i++) {
422 err = rtl8366_mc_is_used(smi, i, &used);
427 /* Update the entry from the 4K table */
428 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
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);
440 err = smi->ops->set_mc_index(smi, port, i);
446 "all VLAN member configurations are in use\n");
451 int rtl8366_enable_vlan(struct rtl8366_smi *smi, int enable)
455 err = smi->ops->enable_vlan(smi, enable);
459 smi->vlan_enabled = enable;
462 smi->vlan4k_enabled = 0;
463 err = smi->ops->enable_vlan4k(smi, enable);
468 EXPORT_SYMBOL_GPL(rtl8366_enable_vlan);
470 static int rtl8366_enable_vlan4k(struct rtl8366_smi *smi, int enable)
475 err = smi->ops->enable_vlan(smi, enable);
479 smi->vlan_enabled = enable;
482 err = smi->ops->enable_vlan4k(smi, enable);
486 smi->vlan4k_enabled = enable;
490 int rtl8366_enable_all_ports(struct rtl8366_smi *smi, int enable)
495 for (port = 0; port < smi->num_ports; port++) {
496 err = smi->ops->enable_port(smi, port, enable);
503 EXPORT_SYMBOL_GPL(rtl8366_enable_all_ports);
505 int rtl8366_reset_vlan(struct rtl8366_smi *smi)
507 struct rtl8366_vlan_mc vlanmc;
511 rtl8366_enable_vlan(smi, 0);
512 rtl8366_enable_vlan4k(smi, 0);
514 /* clear VLAN member configurations */
520 for (i = 0; i < smi->num_vlan_mc; i++) {
521 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
528 EXPORT_SYMBOL_GPL(rtl8366_reset_vlan);
530 static int rtl8366_init_vlan(struct rtl8366_smi *smi)
535 err = rtl8366_reset_vlan(smi);
539 for (port = 0; port < smi->num_ports; port++) {
542 if (port == smi->cpu_port)
543 mask = (1 << smi->num_ports) - 1;
545 mask = (1 << port) | (1 << smi->cpu_port);
547 err = rtl8366_set_vlan(smi, (port + 1), mask, mask, 0);
551 err = rtl8366_set_pvid(smi, port, (port + 1));
556 return rtl8366_enable_vlan(smi, 1);
559 #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
560 int rtl8366_debugfs_open(struct inode *inode, struct file *file)
562 file->private_data = inode->i_private;
565 EXPORT_SYMBOL_GPL(rtl8366_debugfs_open);
567 static ssize_t rtl8366_read_debugfs_vlan_mc(struct file *file,
568 char __user *user_buf,
569 size_t count, loff_t *ppos)
571 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
573 char *buf = smi->buf;
575 len += snprintf(buf + len, sizeof(smi->buf) - len,
576 "%2s %6s %4s %6s %6s %3s\n",
577 "id", "vid","prio", "member", "untag", "fid");
579 for (i = 0; i < smi->num_vlan_mc; ++i) {
580 struct rtl8366_vlan_mc vlanmc;
582 smi->ops->get_vlan_mc(smi, i, &vlanmc);
584 len += snprintf(buf + len, sizeof(smi->buf) - len,
585 "%2d %6d %4d 0x%04x 0x%04x %3d\n",
586 i, vlanmc.vid, vlanmc.priority,
587 vlanmc.member, vlanmc.untag, vlanmc.fid);
590 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
593 #define RTL8366_VLAN4K_PAGE_SIZE 64
594 #define RTL8366_VLAN4K_NUM_PAGES (4096 / RTL8366_VLAN4K_PAGE_SIZE)
596 static ssize_t rtl8366_read_debugfs_vlan_4k(struct file *file,
597 char __user *user_buf,
598 size_t count, loff_t *ppos)
600 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
603 char *buf = smi->buf;
605 if (smi->dbg_vlan_4k_page >= RTL8366_VLAN4K_NUM_PAGES) {
606 len += snprintf(buf + len, sizeof(smi->buf) - len,
607 "invalid page: %u\n", smi->dbg_vlan_4k_page);
608 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
611 len += snprintf(buf + len, sizeof(smi->buf) - len,
613 "vid", "member", "untag", "fid");
615 offset = RTL8366_VLAN4K_PAGE_SIZE * smi->dbg_vlan_4k_page;
616 for (i = 0; i < RTL8366_VLAN4K_PAGE_SIZE; i++) {
617 struct rtl8366_vlan_4k vlan4k;
619 smi->ops->get_vlan_4k(smi, offset + i, &vlan4k);
621 len += snprintf(buf + len, sizeof(smi->buf) - len,
622 "%4d 0x%04x 0x%04x %3d\n",
623 vlan4k.vid, vlan4k.member,
624 vlan4k.untag, vlan4k.fid);
627 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
630 static ssize_t rtl8366_read_debugfs_pvid(struct file *file,
631 char __user *user_buf,
632 size_t count, loff_t *ppos)
634 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
635 char *buf = smi->buf;
639 len += snprintf(buf + len, sizeof(smi->buf) - len, "%4s %4s\n",
642 for (i = 0; i < smi->num_ports; i++) {
646 err = rtl8366_get_pvid(smi, i, &pvid);
648 len += snprintf(buf + len, sizeof(smi->buf) - len,
651 len += snprintf(buf + len, sizeof(smi->buf) - len,
652 "%4d %4d\n", i, pvid);
655 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
658 static ssize_t rtl8366_read_debugfs_reg(struct file *file,
659 char __user *user_buf,
660 size_t count, loff_t *ppos)
662 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
663 u32 t, reg = smi->dbg_reg;
665 char *buf = smi->buf;
667 memset(buf, '\0', sizeof(smi->buf));
669 err = rtl8366_smi_read_reg(smi, reg, &t);
671 len += snprintf(buf, sizeof(smi->buf),
672 "Read failed (reg: 0x%04x)\n", reg);
673 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
676 len += snprintf(buf, sizeof(smi->buf), "reg = 0x%04x, val = 0x%04x\n",
679 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
682 static ssize_t rtl8366_write_debugfs_reg(struct file *file,
683 const char __user *user_buf,
684 size_t count, loff_t *ppos)
686 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
688 u32 reg = smi->dbg_reg;
691 char *buf = smi->buf;
693 len = min(count, sizeof(smi->buf) - 1);
694 if (copy_from_user(buf, user_buf, len)) {
695 dev_err(smi->parent, "copy from user failed\n");
700 if (len > 0 && buf[len - 1] == '\n')
704 if (strict_strtoul(buf, 16, &data)) {
705 dev_err(smi->parent, "Invalid reg value %s\n", buf);
707 err = rtl8366_smi_write_reg(smi, reg, data);
710 "writing reg 0x%04x val 0x%04lx failed\n",
718 static ssize_t rtl8366_read_debugfs_mibs(struct file *file,
719 char __user *user_buf,
720 size_t count, loff_t *ppos)
722 struct rtl8366_smi *smi = file->private_data;
724 char *buf = smi->buf;
726 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s",
729 for (i = 0; i < smi->num_ports; i++) {
732 snprintf(port_buf, sizeof(port_buf), "Port %d", i);
733 len += snprintf(buf + len, sizeof(smi->buf) - len, " %12s",
736 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
738 for (i = 0; i < smi->num_mib_counters; i++) {
739 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s ",
740 smi->mib_counters[i].name);
741 for (j = 0; j < smi->num_ports; j++) {
742 unsigned long long counter = 0;
744 if (!smi->ops->get_mib_counter(smi, i, j, &counter))
745 len += snprintf(buf + len,
746 sizeof(smi->buf) - len,
749 len += snprintf(buf + len,
750 sizeof(smi->buf) - len,
753 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
756 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
759 static const struct file_operations fops_rtl8366_regs = {
760 .read = rtl8366_read_debugfs_reg,
761 .write = rtl8366_write_debugfs_reg,
762 .open = rtl8366_debugfs_open,
766 static const struct file_operations fops_rtl8366_vlan_mc = {
767 .read = rtl8366_read_debugfs_vlan_mc,
768 .open = rtl8366_debugfs_open,
772 static const struct file_operations fops_rtl8366_vlan_4k = {
773 .read = rtl8366_read_debugfs_vlan_4k,
774 .open = rtl8366_debugfs_open,
778 static const struct file_operations fops_rtl8366_pvid = {
779 .read = rtl8366_read_debugfs_pvid,
780 .open = rtl8366_debugfs_open,
784 static const struct file_operations fops_rtl8366_mibs = {
785 .read = rtl8366_read_debugfs_mibs,
786 .open = rtl8366_debugfs_open,
790 static void rtl8366_debugfs_init(struct rtl8366_smi *smi)
795 if (!smi->debugfs_root)
796 smi->debugfs_root = debugfs_create_dir(dev_name(smi->parent),
799 if (!smi->debugfs_root) {
800 dev_err(smi->parent, "Unable to create debugfs dir\n");
803 root = smi->debugfs_root;
805 node = debugfs_create_x16("reg", S_IRUGO | S_IWUSR, root,
808 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
813 node = debugfs_create_file("val", S_IRUGO | S_IWUSR, root, smi,
816 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
821 node = debugfs_create_file("vlan_mc", S_IRUSR, root, smi,
822 &fops_rtl8366_vlan_mc);
824 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
829 node = debugfs_create_u8("vlan_4k_page", S_IRUGO | S_IWUSR, root,
830 &smi->dbg_vlan_4k_page);
832 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
837 node = debugfs_create_file("vlan_4k", S_IRUSR, root, smi,
838 &fops_rtl8366_vlan_4k);
840 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
845 node = debugfs_create_file("pvid", S_IRUSR, root, smi,
848 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
853 node = debugfs_create_file("mibs", S_IRUSR, smi->debugfs_root, smi,
856 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
860 static void rtl8366_debugfs_remove(struct rtl8366_smi *smi)
862 if (smi->debugfs_root) {
863 debugfs_remove_recursive(smi->debugfs_root);
864 smi->debugfs_root = NULL;
868 static inline void rtl8366_debugfs_init(struct rtl8366_smi *smi) {}
869 static inline void rtl8366_debugfs_remove(struct rtl8366_smi *smi) {}
870 #endif /* CONFIG_RTL8366S_PHY_DEBUG_FS */
872 static int rtl8366_smi_mii_init(struct rtl8366_smi *smi)
877 smi->mii_bus = mdiobus_alloc();
878 if (smi->mii_bus == NULL) {
883 smi->mii_bus->priv = (void *) smi;
884 smi->mii_bus->name = dev_name(smi->parent);
885 smi->mii_bus->read = smi->ops->mii_read;
886 smi->mii_bus->write = smi->ops->mii_write;
887 snprintf(smi->mii_bus->id, MII_BUS_ID_SIZE, "%s",
888 dev_name(smi->parent));
889 smi->mii_bus->parent = smi->parent;
890 smi->mii_bus->phy_mask = ~(0x1f);
891 smi->mii_bus->irq = smi->mii_irq;
892 for (i = 0; i < PHY_MAX_ADDR; i++)
893 smi->mii_irq[i] = PHY_POLL;
895 ret = mdiobus_register(smi->mii_bus);
902 mdiobus_free(smi->mii_bus);
907 static void rtl8366_smi_mii_cleanup(struct rtl8366_smi *smi)
909 mdiobus_unregister(smi->mii_bus);
910 mdiobus_free(smi->mii_bus);
913 int rtl8366_sw_get_port_pvid(struct switch_dev *dev, int port, int *val)
915 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
916 return rtl8366_get_pvid(smi, port, val);
918 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_pvid);
920 int rtl8366_sw_set_port_pvid(struct switch_dev *dev, int port, int val)
922 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
923 return rtl8366_set_pvid(smi, port, val);
925 EXPORT_SYMBOL_GPL(rtl8366_sw_set_port_pvid);
927 int rtl8366_sw_get_port_mib(struct switch_dev *dev,
928 const struct switch_attr *attr,
929 struct switch_val *val)
931 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
933 unsigned long long counter = 0;
934 char *buf = smi->buf;
936 if (val->port_vlan >= smi->num_ports)
939 len += snprintf(buf + len, sizeof(smi->buf) - len,
940 "Port %d MIB counters\n",
943 for (i = 0; i < smi->num_mib_counters; ++i) {
944 len += snprintf(buf + len, sizeof(smi->buf) - len,
945 "%-36s: ", smi->mib_counters[i].name);
946 if (!smi->ops->get_mib_counter(smi, i, val->port_vlan,
948 len += snprintf(buf + len, sizeof(smi->buf) - len,
951 len += snprintf(buf + len, sizeof(smi->buf) - len,
959 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib);
961 int rtl8366_sw_get_vlan_info(struct switch_dev *dev,
962 const struct switch_attr *attr,
963 struct switch_val *val)
967 struct rtl8366_vlan_4k vlan4k;
968 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
969 char *buf = smi->buf;
972 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
975 memset(buf, '\0', sizeof(smi->buf));
977 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
981 len += snprintf(buf + len, sizeof(smi->buf) - len,
982 "VLAN %d: Ports: '", vlan4k.vid);
984 for (i = 0; i < smi->num_ports; i++) {
985 if (!(vlan4k.member & (1 << i)))
988 len += snprintf(buf + len, sizeof(smi->buf) - len, "%d%s", i,
989 (vlan4k.untag & (1 << i)) ? "" : "t");
992 len += snprintf(buf + len, sizeof(smi->buf) - len,
993 "', members=%04x, untag=%04x, fid=%u",
994 vlan4k.member, vlan4k.untag, vlan4k.fid);
1001 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_info);
1003 int rtl8366_sw_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
1005 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1006 struct switch_port *port;
1007 struct rtl8366_vlan_4k vlan4k;
1010 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1013 smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1015 port = &val->value.ports[0];
1017 for (i = 0; i < smi->num_ports; i++) {
1018 if (!(vlan4k.member & BIT(i)))
1022 port->flags = (vlan4k.untag & BIT(i)) ?
1023 0 : BIT(SWITCH_PORT_FLAG_TAGGED);
1029 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_ports);
1031 int rtl8366_sw_set_vlan_ports(struct switch_dev *dev, struct switch_val *val)
1033 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1034 struct switch_port *port;
1040 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1043 port = &val->value.ports[0];
1044 for (i = 0; i < val->len; i++, port++) {
1045 member |= BIT(port->id);
1047 if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED)))
1048 untag |= BIT(port->id);
1051 * To ensure that we have a valid MC entry for this VLAN,
1052 * initialize the port VLAN ID here.
1054 err = rtl8366_set_pvid(smi, port->id, val->port_vlan);
1059 return rtl8366_set_vlan(smi, val->port_vlan, member, untag, 0);
1061 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_ports);
1063 int rtl8366_sw_get_vlan_fid(struct switch_dev *dev,
1064 const struct switch_attr *attr,
1065 struct switch_val *val)
1067 struct rtl8366_vlan_4k vlan4k;
1068 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1071 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1074 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1078 val->value.i = vlan4k.fid;
1082 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_fid);
1084 int rtl8366_sw_set_vlan_fid(struct switch_dev *dev,
1085 const struct switch_attr *attr,
1086 struct switch_val *val)
1088 struct rtl8366_vlan_4k vlan4k;
1089 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1092 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1095 if (val->value.i < 0 || val->value.i > attr->max)
1098 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1102 return rtl8366_set_vlan(smi, val->port_vlan,
1107 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_fid);
1109 int rtl8366_sw_get_vlan_enable(struct switch_dev *dev,
1110 const struct switch_attr *attr,
1111 struct switch_val *val)
1113 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1119 val->value.i = smi->vlan_enabled;
1121 val->value.i = smi->vlan4k_enabled;
1125 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_enable);
1127 int rtl8366_sw_set_vlan_enable(struct switch_dev *dev,
1128 const struct switch_attr *attr,
1129 struct switch_val *val)
1131 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1138 err = rtl8366_enable_vlan(smi, val->value.i);
1140 err = rtl8366_enable_vlan4k(smi, val->value.i);
1144 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_enable);
1146 struct rtl8366_smi *rtl8366_smi_alloc(struct device *parent)
1148 struct rtl8366_smi *smi;
1152 smi = kzalloc(sizeof(*smi), GFP_KERNEL);
1154 dev_err(parent, "no memory for private data\n");
1158 smi->parent = parent;
1161 EXPORT_SYMBOL_GPL(rtl8366_smi_alloc);
1163 int rtl8366_smi_init(struct rtl8366_smi *smi)
1170 err = gpio_request(smi->gpio_sda, dev_name(smi->parent));
1172 dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
1173 smi->gpio_sda, err);
1177 err = gpio_request(smi->gpio_sck, dev_name(smi->parent));
1179 dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
1180 smi->gpio_sck, err);
1184 spin_lock_init(&smi->lock);
1186 dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n",
1187 smi->gpio_sda, smi->gpio_sck);
1189 err = smi->ops->detect(smi);
1191 dev_err(smi->parent, "chip detection failed, err=%d\n", err);
1195 err = smi->ops->setup(smi);
1197 dev_err(smi->parent, "chip setup failed, err=%d\n", err);
1201 err = rtl8366_init_vlan(smi);
1203 dev_err(smi->parent, "VLAN initialization failed, err=%d\n",
1208 err = rtl8366_enable_all_ports(smi, 1);
1212 err = rtl8366_smi_mii_init(smi);
1216 rtl8366_debugfs_init(smi);
1221 gpio_free(smi->gpio_sck);
1223 gpio_free(smi->gpio_sda);
1227 EXPORT_SYMBOL_GPL(rtl8366_smi_init);
1229 void rtl8366_smi_cleanup(struct rtl8366_smi *smi)
1231 rtl8366_debugfs_remove(smi);
1232 rtl8366_smi_mii_cleanup(smi);
1233 gpio_free(smi->gpio_sck);
1234 gpio_free(smi->gpio_sda);
1236 EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
1238 MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
1239 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1240 MODULE_LICENSE("GPL v2");