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>
18 #include <linux/rtl8366.h>
20 #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
21 #include <linux/debugfs.h>
24 #include "rtl8366_smi.h"
26 #define RTL8366_SMI_ACK_RETRY_COUNT 5
28 static inline void rtl8366_smi_clk_delay(struct rtl8366_smi *smi)
30 ndelay(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) {
146 dev_err(smi->parent, "ACK timeout\n");
154 static int rtl8366_smi_write_byte(struct rtl8366_smi *smi, u8 data)
156 rtl8366_smi_write_bits(smi, data, 8);
157 return rtl8366_smi_wait_for_ack(smi);
160 static int rtl8366_smi_read_byte0(struct rtl8366_smi *smi, u8 *data)
165 rtl8366_smi_read_bits(smi, 8, &t);
169 rtl8366_smi_write_bits(smi, 0x00, 1);
174 static int rtl8366_smi_read_byte1(struct rtl8366_smi *smi, u8 *data)
179 rtl8366_smi_read_bits(smi, 8, &t);
183 rtl8366_smi_write_bits(smi, 0x01, 1);
188 int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
195 spin_lock_irqsave(&smi->lock, flags);
197 rtl8366_smi_start(smi);
199 /* send READ command */
200 ret = rtl8366_smi_write_byte(smi, smi->cmd_read);
205 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
210 ret = rtl8366_smi_write_byte(smi, addr >> 8);
215 rtl8366_smi_read_byte0(smi, &lo);
216 /* read DATA[15:8] */
217 rtl8366_smi_read_byte1(smi, &hi);
219 *data = ((u32) lo) | (((u32) hi) << 8);
224 rtl8366_smi_stop(smi);
225 spin_unlock_irqrestore(&smi->lock, flags);
229 EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg);
231 int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
236 spin_lock_irqsave(&smi->lock, flags);
238 rtl8366_smi_start(smi);
240 /* send WRITE command */
241 ret = rtl8366_smi_write_byte(smi, smi->cmd_write);
246 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
251 ret = rtl8366_smi_write_byte(smi, addr >> 8);
255 /* write DATA[7:0] */
256 ret = rtl8366_smi_write_byte(smi, data & 0xff);
260 /* write DATA[15:8] */
261 ret = rtl8366_smi_write_byte(smi, data >> 8);
268 rtl8366_smi_stop(smi);
269 spin_unlock_irqrestore(&smi->lock, flags);
273 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg);
275 int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data)
280 err = rtl8366_smi_read_reg(smi, addr, &t);
284 err = rtl8366_smi_write_reg(smi, addr, (t & ~mask) | data);
288 EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr);
290 static int rtl8366_mc_is_used(struct rtl8366_smi *smi, int mc_index, int *used)
296 for (i = 0; i < smi->num_ports; i++) {
299 err = smi->ops->get_mc_index(smi, i, &index);
303 if (mc_index == index) {
312 static int rtl8366_set_vlan(struct rtl8366_smi *smi, int vid, u32 member,
315 struct rtl8366_vlan_4k vlan4k;
319 /* Update the 4K table */
320 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
324 vlan4k.member = member;
325 vlan4k.untag = untag;
327 err = smi->ops->set_vlan_4k(smi, &vlan4k);
331 /* Try to find an existing MC entry for this VID */
332 for (i = 0; i < smi->num_vlan_mc; i++) {
333 struct rtl8366_vlan_mc vlanmc;
335 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
339 if (vid == vlanmc.vid) {
340 /* update the MC entry */
341 vlanmc.member = member;
342 vlanmc.untag = untag;
345 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
353 static int rtl8366_get_pvid(struct rtl8366_smi *smi, int port, int *val)
355 struct rtl8366_vlan_mc vlanmc;
359 err = smi->ops->get_mc_index(smi, port, &index);
363 err = smi->ops->get_vlan_mc(smi, index, &vlanmc);
371 static int rtl8366_set_pvid(struct rtl8366_smi *smi, unsigned port,
374 struct rtl8366_vlan_mc vlanmc;
375 struct rtl8366_vlan_4k vlan4k;
379 /* Try to find an existing MC entry for this VID */
380 for (i = 0; i < smi->num_vlan_mc; i++) {
381 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
385 if (vid == vlanmc.vid) {
386 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
390 err = smi->ops->set_mc_index(smi, port, i);
395 /* We have no MC entry for this VID, try to find an empty one */
396 for (i = 0; i < smi->num_vlan_mc; i++) {
397 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
401 if (vlanmc.vid == 0 && vlanmc.member == 0) {
402 /* Update the entry from the 4K table */
403 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
408 vlanmc.member = vlan4k.member;
409 vlanmc.untag = vlan4k.untag;
410 vlanmc.fid = vlan4k.fid;
411 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
415 err = smi->ops->set_mc_index(smi, port, i);
420 /* MC table is full, try to find an unused entry and replace it */
421 for (i = 0; i < smi->num_vlan_mc; i++) {
424 err = rtl8366_mc_is_used(smi, i, &used);
429 /* Update the entry from the 4K table */
430 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
435 vlanmc.member = vlan4k.member;
436 vlanmc.untag = vlan4k.untag;
437 vlanmc.fid = vlan4k.fid;
438 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
442 err = smi->ops->set_mc_index(smi, port, i);
448 "all VLAN member configurations are in use\n");
453 int rtl8366_enable_vlan(struct rtl8366_smi *smi, int enable)
457 err = smi->ops->enable_vlan(smi, enable);
461 smi->vlan_enabled = enable;
464 smi->vlan4k_enabled = 0;
465 err = smi->ops->enable_vlan4k(smi, enable);
470 EXPORT_SYMBOL_GPL(rtl8366_enable_vlan);
472 static int rtl8366_enable_vlan4k(struct rtl8366_smi *smi, int enable)
477 err = smi->ops->enable_vlan(smi, enable);
481 smi->vlan_enabled = enable;
484 err = smi->ops->enable_vlan4k(smi, enable);
488 smi->vlan4k_enabled = enable;
492 int rtl8366_enable_all_ports(struct rtl8366_smi *smi, int enable)
497 for (port = 0; port < smi->num_ports; port++) {
498 err = smi->ops->enable_port(smi, port, enable);
505 EXPORT_SYMBOL_GPL(rtl8366_enable_all_ports);
507 int rtl8366_reset_vlan(struct rtl8366_smi *smi)
509 struct rtl8366_vlan_mc vlanmc;
513 rtl8366_enable_vlan(smi, 0);
514 rtl8366_enable_vlan4k(smi, 0);
516 /* clear VLAN member configurations */
522 for (i = 0; i < smi->num_vlan_mc; i++) {
523 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
530 EXPORT_SYMBOL_GPL(rtl8366_reset_vlan);
532 static int rtl8366_init_vlan(struct rtl8366_smi *smi)
537 err = rtl8366_reset_vlan(smi);
541 for (port = 0; port < smi->num_ports; port++) {
544 if (port == smi->cpu_port)
545 mask = (1 << smi->num_ports) - 1;
547 mask = (1 << port) | (1 << smi->cpu_port);
549 err = rtl8366_set_vlan(smi, (port + 1), mask, mask, 0);
553 err = rtl8366_set_pvid(smi, port, (port + 1));
558 return rtl8366_enable_vlan(smi, 1);
561 #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
562 int rtl8366_debugfs_open(struct inode *inode, struct file *file)
564 file->private_data = inode->i_private;
567 EXPORT_SYMBOL_GPL(rtl8366_debugfs_open);
569 static ssize_t rtl8366_read_debugfs_vlan_mc(struct file *file,
570 char __user *user_buf,
571 size_t count, loff_t *ppos)
573 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
575 char *buf = smi->buf;
577 len += snprintf(buf + len, sizeof(smi->buf) - len,
578 "%2s %6s %4s %6s %6s %3s\n",
579 "id", "vid","prio", "member", "untag", "fid");
581 for (i = 0; i < smi->num_vlan_mc; ++i) {
582 struct rtl8366_vlan_mc vlanmc;
584 smi->ops->get_vlan_mc(smi, i, &vlanmc);
586 len += snprintf(buf + len, sizeof(smi->buf) - len,
587 "%2d %6d %4d 0x%04x 0x%04x %3d\n",
588 i, vlanmc.vid, vlanmc.priority,
589 vlanmc.member, vlanmc.untag, vlanmc.fid);
592 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
595 #define RTL8366_VLAN4K_PAGE_SIZE 64
596 #define RTL8366_VLAN4K_NUM_PAGES (4096 / RTL8366_VLAN4K_PAGE_SIZE)
598 static ssize_t rtl8366_read_debugfs_vlan_4k(struct file *file,
599 char __user *user_buf,
600 size_t count, loff_t *ppos)
602 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
605 char *buf = smi->buf;
607 if (smi->dbg_vlan_4k_page >= RTL8366_VLAN4K_NUM_PAGES) {
608 len += snprintf(buf + len, sizeof(smi->buf) - len,
609 "invalid page: %u\n", smi->dbg_vlan_4k_page);
610 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
613 len += snprintf(buf + len, sizeof(smi->buf) - len,
615 "vid", "member", "untag", "fid");
617 offset = RTL8366_VLAN4K_PAGE_SIZE * smi->dbg_vlan_4k_page;
618 for (i = 0; i < RTL8366_VLAN4K_PAGE_SIZE; i++) {
619 struct rtl8366_vlan_4k vlan4k;
621 smi->ops->get_vlan_4k(smi, offset + i, &vlan4k);
623 len += snprintf(buf + len, sizeof(smi->buf) - len,
624 "%4d 0x%04x 0x%04x %3d\n",
625 vlan4k.vid, vlan4k.member,
626 vlan4k.untag, vlan4k.fid);
629 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
632 static ssize_t rtl8366_read_debugfs_pvid(struct file *file,
633 char __user *user_buf,
634 size_t count, loff_t *ppos)
636 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
637 char *buf = smi->buf;
641 len += snprintf(buf + len, sizeof(smi->buf) - len, "%4s %4s\n",
644 for (i = 0; i < smi->num_ports; i++) {
648 err = rtl8366_get_pvid(smi, i, &pvid);
650 len += snprintf(buf + len, sizeof(smi->buf) - len,
653 len += snprintf(buf + len, sizeof(smi->buf) - len,
654 "%4d %4d\n", i, pvid);
657 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
660 static ssize_t rtl8366_read_debugfs_reg(struct file *file,
661 char __user *user_buf,
662 size_t count, loff_t *ppos)
664 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
665 u32 t, reg = smi->dbg_reg;
667 char *buf = smi->buf;
669 memset(buf, '\0', sizeof(smi->buf));
671 err = rtl8366_smi_read_reg(smi, reg, &t);
673 len += snprintf(buf, sizeof(smi->buf),
674 "Read failed (reg: 0x%04x)\n", reg);
675 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
678 len += snprintf(buf, sizeof(smi->buf), "reg = 0x%04x, val = 0x%04x\n",
681 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
684 static ssize_t rtl8366_write_debugfs_reg(struct file *file,
685 const char __user *user_buf,
686 size_t count, loff_t *ppos)
688 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
690 u32 reg = smi->dbg_reg;
693 char *buf = smi->buf;
695 len = min(count, sizeof(smi->buf) - 1);
696 if (copy_from_user(buf, user_buf, len)) {
697 dev_err(smi->parent, "copy from user failed\n");
702 if (len > 0 && buf[len - 1] == '\n')
706 if (strict_strtoul(buf, 16, &data)) {
707 dev_err(smi->parent, "Invalid reg value %s\n", buf);
709 err = rtl8366_smi_write_reg(smi, reg, data);
712 "writing reg 0x%04x val 0x%04lx failed\n",
720 static ssize_t rtl8366_read_debugfs_mibs(struct file *file,
721 char __user *user_buf,
722 size_t count, loff_t *ppos)
724 struct rtl8366_smi *smi = file->private_data;
726 char *buf = smi->buf;
728 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s",
731 for (i = 0; i < smi->num_ports; i++) {
734 snprintf(port_buf, sizeof(port_buf), "Port %d", i);
735 len += snprintf(buf + len, sizeof(smi->buf) - len, " %12s",
738 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
740 for (i = 0; i < smi->num_mib_counters; i++) {
741 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s ",
742 smi->mib_counters[i].name);
743 for (j = 0; j < smi->num_ports; j++) {
744 unsigned long long counter = 0;
746 if (!smi->ops->get_mib_counter(smi, i, j, &counter))
747 len += snprintf(buf + len,
748 sizeof(smi->buf) - len,
751 len += snprintf(buf + len,
752 sizeof(smi->buf) - len,
755 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
758 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
761 static const struct file_operations fops_rtl8366_regs = {
762 .read = rtl8366_read_debugfs_reg,
763 .write = rtl8366_write_debugfs_reg,
764 .open = rtl8366_debugfs_open,
768 static const struct file_operations fops_rtl8366_vlan_mc = {
769 .read = rtl8366_read_debugfs_vlan_mc,
770 .open = rtl8366_debugfs_open,
774 static const struct file_operations fops_rtl8366_vlan_4k = {
775 .read = rtl8366_read_debugfs_vlan_4k,
776 .open = rtl8366_debugfs_open,
780 static const struct file_operations fops_rtl8366_pvid = {
781 .read = rtl8366_read_debugfs_pvid,
782 .open = rtl8366_debugfs_open,
786 static const struct file_operations fops_rtl8366_mibs = {
787 .read = rtl8366_read_debugfs_mibs,
788 .open = rtl8366_debugfs_open,
792 static void rtl8366_debugfs_init(struct rtl8366_smi *smi)
797 if (!smi->debugfs_root)
798 smi->debugfs_root = debugfs_create_dir(dev_name(smi->parent),
801 if (!smi->debugfs_root) {
802 dev_err(smi->parent, "Unable to create debugfs dir\n");
805 root = smi->debugfs_root;
807 node = debugfs_create_x16("reg", S_IRUGO | S_IWUSR, root,
810 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
815 node = debugfs_create_file("val", S_IRUGO | S_IWUSR, root, smi,
818 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
823 node = debugfs_create_file("vlan_mc", S_IRUSR, root, smi,
824 &fops_rtl8366_vlan_mc);
826 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
831 node = debugfs_create_u8("vlan_4k_page", S_IRUGO | S_IWUSR, root,
832 &smi->dbg_vlan_4k_page);
834 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
839 node = debugfs_create_file("vlan_4k", S_IRUSR, root, smi,
840 &fops_rtl8366_vlan_4k);
842 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
847 node = debugfs_create_file("pvid", S_IRUSR, root, smi,
850 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
855 node = debugfs_create_file("mibs", S_IRUSR, smi->debugfs_root, smi,
858 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
862 static void rtl8366_debugfs_remove(struct rtl8366_smi *smi)
864 if (smi->debugfs_root) {
865 debugfs_remove_recursive(smi->debugfs_root);
866 smi->debugfs_root = NULL;
870 static inline void rtl8366_debugfs_init(struct rtl8366_smi *smi) {}
871 static inline void rtl8366_debugfs_remove(struct rtl8366_smi *smi) {}
872 #endif /* CONFIG_RTL8366S_PHY_DEBUG_FS */
874 static int rtl8366_smi_mii_init(struct rtl8366_smi *smi)
879 smi->mii_bus = mdiobus_alloc();
880 if (smi->mii_bus == NULL) {
885 smi->mii_bus->priv = (void *) smi;
886 smi->mii_bus->name = dev_name(smi->parent);
887 smi->mii_bus->read = smi->ops->mii_read;
888 smi->mii_bus->write = smi->ops->mii_write;
889 snprintf(smi->mii_bus->id, MII_BUS_ID_SIZE, "%s",
890 dev_name(smi->parent));
891 smi->mii_bus->parent = smi->parent;
892 smi->mii_bus->phy_mask = ~(0x1f);
893 smi->mii_bus->irq = smi->mii_irq;
894 for (i = 0; i < PHY_MAX_ADDR; i++)
895 smi->mii_irq[i] = PHY_POLL;
897 ret = mdiobus_register(smi->mii_bus);
904 mdiobus_free(smi->mii_bus);
909 static void rtl8366_smi_mii_cleanup(struct rtl8366_smi *smi)
911 mdiobus_unregister(smi->mii_bus);
912 mdiobus_free(smi->mii_bus);
915 int rtl8366_sw_get_port_pvid(struct switch_dev *dev, int port, int *val)
917 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
918 return rtl8366_get_pvid(smi, port, val);
920 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_pvid);
922 int rtl8366_sw_set_port_pvid(struct switch_dev *dev, int port, int val)
924 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
925 return rtl8366_set_pvid(smi, port, val);
927 EXPORT_SYMBOL_GPL(rtl8366_sw_set_port_pvid);
929 int rtl8366_sw_get_port_mib(struct switch_dev *dev,
930 const struct switch_attr *attr,
931 struct switch_val *val)
933 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
935 unsigned long long counter = 0;
936 char *buf = smi->buf;
938 if (val->port_vlan >= smi->num_ports)
941 len += snprintf(buf + len, sizeof(smi->buf) - len,
942 "Port %d MIB counters\n",
945 for (i = 0; i < smi->num_mib_counters; ++i) {
946 len += snprintf(buf + len, sizeof(smi->buf) - len,
947 "%-36s: ", smi->mib_counters[i].name);
948 if (!smi->ops->get_mib_counter(smi, i, val->port_vlan,
950 len += snprintf(buf + len, sizeof(smi->buf) - len,
953 len += snprintf(buf + len, sizeof(smi->buf) - len,
961 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib);
963 int rtl8366_sw_get_vlan_info(struct switch_dev *dev,
964 const struct switch_attr *attr,
965 struct switch_val *val)
969 struct rtl8366_vlan_4k vlan4k;
970 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
971 char *buf = smi->buf;
974 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
977 memset(buf, '\0', sizeof(smi->buf));
979 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
983 len += snprintf(buf + len, sizeof(smi->buf) - len,
984 "VLAN %d: Ports: '", vlan4k.vid);
986 for (i = 0; i < smi->num_ports; i++) {
987 if (!(vlan4k.member & (1 << i)))
990 len += snprintf(buf + len, sizeof(smi->buf) - len, "%d%s", i,
991 (vlan4k.untag & (1 << i)) ? "" : "t");
994 len += snprintf(buf + len, sizeof(smi->buf) - len,
995 "', members=%04x, untag=%04x, fid=%u",
996 vlan4k.member, vlan4k.untag, vlan4k.fid);
1003 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_info);
1005 int rtl8366_sw_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
1007 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1008 struct switch_port *port;
1009 struct rtl8366_vlan_4k vlan4k;
1012 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1015 smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1017 port = &val->value.ports[0];
1019 for (i = 0; i < smi->num_ports; i++) {
1020 if (!(vlan4k.member & BIT(i)))
1024 port->flags = (vlan4k.untag & BIT(i)) ?
1025 0 : BIT(SWITCH_PORT_FLAG_TAGGED);
1031 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_ports);
1033 int rtl8366_sw_set_vlan_ports(struct switch_dev *dev, struct switch_val *val)
1035 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1036 struct switch_port *port;
1042 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1045 port = &val->value.ports[0];
1046 for (i = 0; i < val->len; i++, port++) {
1047 member |= BIT(port->id);
1049 if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED)))
1050 untag |= BIT(port->id);
1053 * To ensure that we have a valid MC entry for this VLAN,
1054 * initialize the port VLAN ID here.
1056 err = rtl8366_set_pvid(smi, port->id, val->port_vlan);
1061 return rtl8366_set_vlan(smi, val->port_vlan, member, untag, 0);
1063 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_ports);
1065 int rtl8366_sw_get_vlan_fid(struct switch_dev *dev,
1066 const struct switch_attr *attr,
1067 struct switch_val *val)
1069 struct rtl8366_vlan_4k vlan4k;
1070 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1073 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1076 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1080 val->value.i = vlan4k.fid;
1084 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_fid);
1086 int rtl8366_sw_set_vlan_fid(struct switch_dev *dev,
1087 const struct switch_attr *attr,
1088 struct switch_val *val)
1090 struct rtl8366_vlan_4k vlan4k;
1091 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1094 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1097 if (val->value.i < 0 || val->value.i > attr->max)
1100 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1104 return rtl8366_set_vlan(smi, val->port_vlan,
1109 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_fid);
1111 int rtl8366_sw_get_vlan_enable(struct switch_dev *dev,
1112 const struct switch_attr *attr,
1113 struct switch_val *val)
1115 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1121 val->value.i = smi->vlan_enabled;
1123 val->value.i = smi->vlan4k_enabled;
1127 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_enable);
1129 int rtl8366_sw_set_vlan_enable(struct switch_dev *dev,
1130 const struct switch_attr *attr,
1131 struct switch_val *val)
1133 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1140 err = rtl8366_enable_vlan(smi, val->value.i);
1142 err = rtl8366_enable_vlan4k(smi, val->value.i);
1146 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_enable);
1148 struct rtl8366_smi *rtl8366_smi_alloc(struct device *parent)
1150 struct rtl8366_smi *smi;
1154 smi = kzalloc(sizeof(*smi), GFP_KERNEL);
1156 dev_err(parent, "no memory for private data\n");
1160 smi->parent = parent;
1163 EXPORT_SYMBOL_GPL(rtl8366_smi_alloc);
1165 static int __rtl8366_smi_init(struct rtl8366_smi *smi, const char *name)
1169 err = gpio_request(smi->gpio_sda, name);
1171 printk(KERN_ERR "rtl8366_smi: gpio_request failed for %u, err=%d\n",
1172 smi->gpio_sda, err);
1176 err = gpio_request(smi->gpio_sck, name);
1178 printk(KERN_ERR "rtl8366_smi: gpio_request failed for %u, err=%d\n",
1179 smi->gpio_sck, err);
1183 spin_lock_init(&smi->lock);
1187 gpio_free(smi->gpio_sda);
1192 static void __rtl8366_smi_cleanup(struct rtl8366_smi *smi)
1194 gpio_free(smi->gpio_sck);
1195 gpio_free(smi->gpio_sda);
1198 enum rtl8366_type rtl8366_smi_detect(struct rtl8366_platform_data *pdata)
1200 static struct rtl8366_smi smi;
1201 enum rtl8366_type type = RTL8366_TYPE_UNKNOWN;
1204 memset(&smi, 0, sizeof(smi));
1205 smi.gpio_sda = pdata->gpio_sda;
1206 smi.gpio_sck = pdata->gpio_sck;
1208 if (__rtl8366_smi_init(&smi, "rtl8366"))
1211 if (rtl8366_smi_read_reg(&smi, 0x5c, ®))
1216 printk("Found an RTL8366S switch\n");
1217 type = RTL8366_TYPE_S;
1220 printk("Found an RTL8366RB switch\n");
1221 type = RTL8366_TYPE_RB;
1224 printk("Found an Unknown RTL8366 switch (id=0x%04x)\n", reg);
1229 __rtl8366_smi_cleanup(&smi);
1234 int rtl8366_smi_init(struct rtl8366_smi *smi)
1241 err = __rtl8366_smi_init(smi, dev_name(smi->parent));
1245 spin_lock_init(&smi->lock);
1247 dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n",
1248 smi->gpio_sda, smi->gpio_sck);
1250 err = smi->ops->detect(smi);
1252 dev_err(smi->parent, "chip detection failed, err=%d\n", err);
1256 err = smi->ops->setup(smi);
1258 dev_err(smi->parent, "chip setup failed, err=%d\n", err);
1262 err = rtl8366_init_vlan(smi);
1264 dev_err(smi->parent, "VLAN initialization failed, err=%d\n",
1269 err = rtl8366_enable_all_ports(smi, 1);
1273 err = rtl8366_smi_mii_init(smi);
1277 rtl8366_debugfs_init(smi);
1282 __rtl8366_smi_cleanup(smi);
1286 EXPORT_SYMBOL_GPL(rtl8366_smi_init);
1288 void rtl8366_smi_cleanup(struct rtl8366_smi *smi)
1290 rtl8366_debugfs_remove(smi);
1291 rtl8366_smi_mii_cleanup(smi);
1292 gpio_free(smi->gpio_sck);
1293 gpio_free(smi->gpio_sda);
1295 EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
1297 MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
1298 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1299 MODULE_LICENSE("GPL v2");