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_RTL8366_SMI_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_write_byte_noack(struct rtl8366_smi *smi, u8 data)
162 rtl8366_smi_write_bits(smi, data, 8);
166 static int rtl8366_smi_read_byte0(struct rtl8366_smi *smi, u8 *data)
171 rtl8366_smi_read_bits(smi, 8, &t);
175 rtl8366_smi_write_bits(smi, 0x00, 1);
180 static int rtl8366_smi_read_byte1(struct rtl8366_smi *smi, u8 *data)
185 rtl8366_smi_read_bits(smi, 8, &t);
189 rtl8366_smi_write_bits(smi, 0x01, 1);
194 int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
201 spin_lock_irqsave(&smi->lock, flags);
203 rtl8366_smi_start(smi);
205 /* send READ command */
206 ret = rtl8366_smi_write_byte(smi, smi->cmd_read);
211 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
216 ret = rtl8366_smi_write_byte(smi, addr >> 8);
221 rtl8366_smi_read_byte0(smi, &lo);
222 /* read DATA[15:8] */
223 rtl8366_smi_read_byte1(smi, &hi);
225 *data = ((u32) lo) | (((u32) hi) << 8);
230 rtl8366_smi_stop(smi);
231 spin_unlock_irqrestore(&smi->lock, flags);
235 EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg);
237 static int __rtl8366_smi_write_reg(struct rtl8366_smi *smi,
238 u32 addr, u32 data, bool ack)
243 spin_lock_irqsave(&smi->lock, flags);
245 rtl8366_smi_start(smi);
247 /* send WRITE command */
248 ret = rtl8366_smi_write_byte(smi, smi->cmd_write);
253 ret = rtl8366_smi_write_byte(smi, addr & 0xff);
258 ret = rtl8366_smi_write_byte(smi, addr >> 8);
262 /* write DATA[7:0] */
263 ret = rtl8366_smi_write_byte(smi, data & 0xff);
267 /* write DATA[15:8] */
269 ret = rtl8366_smi_write_byte(smi, data >> 8);
271 ret = rtl8366_smi_write_byte_noack(smi, data >> 8);
278 rtl8366_smi_stop(smi);
279 spin_unlock_irqrestore(&smi->lock, flags);
284 int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
286 return __rtl8366_smi_write_reg(smi, addr, data, true);
288 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg);
290 int rtl8366_smi_write_reg_noack(struct rtl8366_smi *smi, u32 addr, u32 data)
292 return __rtl8366_smi_write_reg(smi, addr, data, false);
294 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg_noack);
296 int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data)
301 err = rtl8366_smi_read_reg(smi, addr, &t);
305 err = rtl8366_smi_write_reg(smi, addr, (t & ~mask) | data);
309 EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr);
311 static int rtl8366_mc_is_used(struct rtl8366_smi *smi, int mc_index, int *used)
317 for (i = 0; i < smi->num_ports; i++) {
320 err = smi->ops->get_mc_index(smi, i, &index);
324 if (mc_index == index) {
333 static int rtl8366_set_vlan(struct rtl8366_smi *smi, int vid, u32 member,
336 struct rtl8366_vlan_4k vlan4k;
340 /* Update the 4K table */
341 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
345 vlan4k.member = member;
346 vlan4k.untag = untag;
348 err = smi->ops->set_vlan_4k(smi, &vlan4k);
352 /* Try to find an existing MC entry for this VID */
353 for (i = 0; i < smi->num_vlan_mc; i++) {
354 struct rtl8366_vlan_mc vlanmc;
356 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
360 if (vid == vlanmc.vid) {
361 /* update the MC entry */
362 vlanmc.member = member;
363 vlanmc.untag = untag;
366 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
374 static int rtl8366_get_pvid(struct rtl8366_smi *smi, int port, int *val)
376 struct rtl8366_vlan_mc vlanmc;
380 err = smi->ops->get_mc_index(smi, port, &index);
384 err = smi->ops->get_vlan_mc(smi, index, &vlanmc);
392 static int rtl8366_set_pvid(struct rtl8366_smi *smi, unsigned port,
395 struct rtl8366_vlan_mc vlanmc;
396 struct rtl8366_vlan_4k vlan4k;
400 /* Try to find an existing MC entry for this VID */
401 for (i = 0; i < smi->num_vlan_mc; i++) {
402 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
406 if (vid == vlanmc.vid) {
407 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
411 err = smi->ops->set_mc_index(smi, port, i);
416 /* We have no MC entry for this VID, try to find an empty one */
417 for (i = 0; i < smi->num_vlan_mc; i++) {
418 err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
422 if (vlanmc.vid == 0 && vlanmc.member == 0) {
423 /* Update the entry from the 4K table */
424 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
429 vlanmc.member = vlan4k.member;
430 vlanmc.untag = vlan4k.untag;
431 vlanmc.fid = vlan4k.fid;
432 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
436 err = smi->ops->set_mc_index(smi, port, i);
441 /* MC table is full, try to find an unused entry and replace it */
442 for (i = 0; i < smi->num_vlan_mc; i++) {
445 err = rtl8366_mc_is_used(smi, i, &used);
450 /* Update the entry from the 4K table */
451 err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
456 vlanmc.member = vlan4k.member;
457 vlanmc.untag = vlan4k.untag;
458 vlanmc.fid = vlan4k.fid;
459 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
463 err = smi->ops->set_mc_index(smi, port, i);
469 "all VLAN member configurations are in use\n");
474 int rtl8366_enable_vlan(struct rtl8366_smi *smi, int enable)
478 err = smi->ops->enable_vlan(smi, enable);
482 smi->vlan_enabled = enable;
485 smi->vlan4k_enabled = 0;
486 err = smi->ops->enable_vlan4k(smi, enable);
491 EXPORT_SYMBOL_GPL(rtl8366_enable_vlan);
493 static int rtl8366_enable_vlan4k(struct rtl8366_smi *smi, int enable)
498 err = smi->ops->enable_vlan(smi, enable);
502 smi->vlan_enabled = enable;
505 err = smi->ops->enable_vlan4k(smi, enable);
509 smi->vlan4k_enabled = enable;
513 int rtl8366_enable_all_ports(struct rtl8366_smi *smi, int enable)
518 for (port = 0; port < smi->num_ports; port++) {
519 err = smi->ops->enable_port(smi, port, enable);
526 EXPORT_SYMBOL_GPL(rtl8366_enable_all_ports);
528 int rtl8366_reset_vlan(struct rtl8366_smi *smi)
530 struct rtl8366_vlan_mc vlanmc;
534 rtl8366_enable_vlan(smi, 0);
535 rtl8366_enable_vlan4k(smi, 0);
537 /* clear VLAN member configurations */
543 for (i = 0; i < smi->num_vlan_mc; i++) {
544 err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
551 EXPORT_SYMBOL_GPL(rtl8366_reset_vlan);
553 static int rtl8366_init_vlan(struct rtl8366_smi *smi)
558 err = rtl8366_reset_vlan(smi);
562 for (port = 0; port < smi->num_ports; port++) {
565 if (port == smi->cpu_port)
566 mask = (1 << smi->num_ports) - 1;
568 mask = (1 << port) | (1 << smi->cpu_port);
570 err = rtl8366_set_vlan(smi, (port + 1), mask, mask, 0);
574 err = rtl8366_set_pvid(smi, port, (port + 1));
579 return rtl8366_enable_vlan(smi, 1);
582 #ifdef CONFIG_RTL8366_SMI_DEBUG_FS
583 int rtl8366_debugfs_open(struct inode *inode, struct file *file)
585 file->private_data = inode->i_private;
588 EXPORT_SYMBOL_GPL(rtl8366_debugfs_open);
590 static ssize_t rtl8366_read_debugfs_vlan_mc(struct file *file,
591 char __user *user_buf,
592 size_t count, loff_t *ppos)
594 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
596 char *buf = smi->buf;
598 len += snprintf(buf + len, sizeof(smi->buf) - len,
599 "%2s %6s %4s %6s %6s %3s\n",
600 "id", "vid","prio", "member", "untag", "fid");
602 for (i = 0; i < smi->num_vlan_mc; ++i) {
603 struct rtl8366_vlan_mc vlanmc;
605 smi->ops->get_vlan_mc(smi, i, &vlanmc);
607 len += snprintf(buf + len, sizeof(smi->buf) - len,
608 "%2d %6d %4d 0x%04x 0x%04x %3d\n",
609 i, vlanmc.vid, vlanmc.priority,
610 vlanmc.member, vlanmc.untag, vlanmc.fid);
613 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
616 #define RTL8366_VLAN4K_PAGE_SIZE 64
617 #define RTL8366_VLAN4K_NUM_PAGES (4096 / RTL8366_VLAN4K_PAGE_SIZE)
619 static ssize_t rtl8366_read_debugfs_vlan_4k(struct file *file,
620 char __user *user_buf,
621 size_t count, loff_t *ppos)
623 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
626 char *buf = smi->buf;
628 if (smi->dbg_vlan_4k_page >= RTL8366_VLAN4K_NUM_PAGES) {
629 len += snprintf(buf + len, sizeof(smi->buf) - len,
630 "invalid page: %u\n", smi->dbg_vlan_4k_page);
631 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
634 len += snprintf(buf + len, sizeof(smi->buf) - len,
636 "vid", "member", "untag", "fid");
638 offset = RTL8366_VLAN4K_PAGE_SIZE * smi->dbg_vlan_4k_page;
639 for (i = 0; i < RTL8366_VLAN4K_PAGE_SIZE; i++) {
640 struct rtl8366_vlan_4k vlan4k;
642 smi->ops->get_vlan_4k(smi, offset + i, &vlan4k);
644 len += snprintf(buf + len, sizeof(smi->buf) - len,
645 "%4d 0x%04x 0x%04x %3d\n",
646 vlan4k.vid, vlan4k.member,
647 vlan4k.untag, vlan4k.fid);
650 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
653 static ssize_t rtl8366_read_debugfs_pvid(struct file *file,
654 char __user *user_buf,
655 size_t count, loff_t *ppos)
657 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
658 char *buf = smi->buf;
662 len += snprintf(buf + len, sizeof(smi->buf) - len, "%4s %4s\n",
665 for (i = 0; i < smi->num_ports; i++) {
669 err = rtl8366_get_pvid(smi, i, &pvid);
671 len += snprintf(buf + len, sizeof(smi->buf) - len,
674 len += snprintf(buf + len, sizeof(smi->buf) - len,
675 "%4d %4d\n", i, pvid);
678 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
681 static ssize_t rtl8366_read_debugfs_reg(struct file *file,
682 char __user *user_buf,
683 size_t count, loff_t *ppos)
685 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
686 u32 t, reg = smi->dbg_reg;
688 char *buf = smi->buf;
690 memset(buf, '\0', sizeof(smi->buf));
692 err = rtl8366_smi_read_reg(smi, reg, &t);
694 len += snprintf(buf, sizeof(smi->buf),
695 "Read failed (reg: 0x%04x)\n", reg);
696 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
699 len += snprintf(buf, sizeof(smi->buf), "reg = 0x%04x, val = 0x%04x\n",
702 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
705 static ssize_t rtl8366_write_debugfs_reg(struct file *file,
706 const char __user *user_buf,
707 size_t count, loff_t *ppos)
709 struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
711 u32 reg = smi->dbg_reg;
714 char *buf = smi->buf;
716 len = min(count, sizeof(smi->buf) - 1);
717 if (copy_from_user(buf, user_buf, len)) {
718 dev_err(smi->parent, "copy from user failed\n");
723 if (len > 0 && buf[len - 1] == '\n')
727 if (strict_strtoul(buf, 16, &data)) {
728 dev_err(smi->parent, "Invalid reg value %s\n", buf);
730 err = rtl8366_smi_write_reg(smi, reg, data);
733 "writing reg 0x%04x val 0x%04lx failed\n",
741 static ssize_t rtl8366_read_debugfs_mibs(struct file *file,
742 char __user *user_buf,
743 size_t count, loff_t *ppos)
745 struct rtl8366_smi *smi = file->private_data;
747 char *buf = smi->buf;
749 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s",
752 for (i = 0; i < smi->num_ports; i++) {
755 snprintf(port_buf, sizeof(port_buf), "Port %d", i);
756 len += snprintf(buf + len, sizeof(smi->buf) - len, " %12s",
759 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
761 for (i = 0; i < smi->num_mib_counters; i++) {
762 len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s ",
763 smi->mib_counters[i].name);
764 for (j = 0; j < smi->num_ports; j++) {
765 unsigned long long counter = 0;
767 if (!smi->ops->get_mib_counter(smi, i, j, &counter))
768 len += snprintf(buf + len,
769 sizeof(smi->buf) - len,
772 len += snprintf(buf + len,
773 sizeof(smi->buf) - len,
776 len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
779 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
782 static const struct file_operations fops_rtl8366_regs = {
783 .read = rtl8366_read_debugfs_reg,
784 .write = rtl8366_write_debugfs_reg,
785 .open = rtl8366_debugfs_open,
789 static const struct file_operations fops_rtl8366_vlan_mc = {
790 .read = rtl8366_read_debugfs_vlan_mc,
791 .open = rtl8366_debugfs_open,
795 static const struct file_operations fops_rtl8366_vlan_4k = {
796 .read = rtl8366_read_debugfs_vlan_4k,
797 .open = rtl8366_debugfs_open,
801 static const struct file_operations fops_rtl8366_pvid = {
802 .read = rtl8366_read_debugfs_pvid,
803 .open = rtl8366_debugfs_open,
807 static const struct file_operations fops_rtl8366_mibs = {
808 .read = rtl8366_read_debugfs_mibs,
809 .open = rtl8366_debugfs_open,
813 static void rtl8366_debugfs_init(struct rtl8366_smi *smi)
818 if (!smi->debugfs_root)
819 smi->debugfs_root = debugfs_create_dir(dev_name(smi->parent),
822 if (!smi->debugfs_root) {
823 dev_err(smi->parent, "Unable to create debugfs dir\n");
826 root = smi->debugfs_root;
828 node = debugfs_create_x16("reg", S_IRUGO | S_IWUSR, root,
831 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
836 node = debugfs_create_file("val", S_IRUGO | S_IWUSR, root, smi,
839 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
844 node = debugfs_create_file("vlan_mc", S_IRUSR, root, smi,
845 &fops_rtl8366_vlan_mc);
847 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
852 node = debugfs_create_u8("vlan_4k_page", S_IRUGO | S_IWUSR, root,
853 &smi->dbg_vlan_4k_page);
855 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
860 node = debugfs_create_file("vlan_4k", S_IRUSR, root, smi,
861 &fops_rtl8366_vlan_4k);
863 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
868 node = debugfs_create_file("pvid", S_IRUSR, root, smi,
871 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
876 node = debugfs_create_file("mibs", S_IRUSR, smi->debugfs_root, smi,
879 dev_err(smi->parent, "Creating debugfs file '%s' failed\n",
883 static void rtl8366_debugfs_remove(struct rtl8366_smi *smi)
885 if (smi->debugfs_root) {
886 debugfs_remove_recursive(smi->debugfs_root);
887 smi->debugfs_root = NULL;
891 static inline void rtl8366_debugfs_init(struct rtl8366_smi *smi) {}
892 static inline void rtl8366_debugfs_remove(struct rtl8366_smi *smi) {}
893 #endif /* CONFIG_RTL8366_SMI_DEBUG_FS */
895 static int rtl8366_smi_mii_init(struct rtl8366_smi *smi)
900 smi->mii_bus = mdiobus_alloc();
901 if (smi->mii_bus == NULL) {
906 smi->mii_bus->priv = (void *) smi;
907 smi->mii_bus->name = dev_name(smi->parent);
908 smi->mii_bus->read = smi->ops->mii_read;
909 smi->mii_bus->write = smi->ops->mii_write;
910 snprintf(smi->mii_bus->id, MII_BUS_ID_SIZE, "%s",
911 dev_name(smi->parent));
912 smi->mii_bus->parent = smi->parent;
913 smi->mii_bus->phy_mask = ~(0x1f);
914 smi->mii_bus->irq = smi->mii_irq;
915 for (i = 0; i < PHY_MAX_ADDR; i++)
916 smi->mii_irq[i] = PHY_POLL;
918 ret = mdiobus_register(smi->mii_bus);
925 mdiobus_free(smi->mii_bus);
930 static void rtl8366_smi_mii_cleanup(struct rtl8366_smi *smi)
932 mdiobus_unregister(smi->mii_bus);
933 mdiobus_free(smi->mii_bus);
936 int rtl8366_sw_reset_switch(struct switch_dev *dev)
938 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
941 err = smi->ops->reset_chip(smi);
945 err = smi->ops->setup(smi);
949 err = rtl8366_reset_vlan(smi);
953 err = rtl8366_enable_vlan(smi, 1);
957 return rtl8366_enable_all_ports(smi, 1);
959 EXPORT_SYMBOL_GPL(rtl8366_sw_reset_switch);
961 int rtl8366_sw_get_port_pvid(struct switch_dev *dev, int port, int *val)
963 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
964 return rtl8366_get_pvid(smi, port, val);
966 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_pvid);
968 int rtl8366_sw_set_port_pvid(struct switch_dev *dev, int port, int val)
970 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
971 return rtl8366_set_pvid(smi, port, val);
973 EXPORT_SYMBOL_GPL(rtl8366_sw_set_port_pvid);
975 int rtl8366_sw_get_port_mib(struct switch_dev *dev,
976 const struct switch_attr *attr,
977 struct switch_val *val)
979 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
981 unsigned long long counter = 0;
982 char *buf = smi->buf;
984 if (val->port_vlan >= smi->num_ports)
987 len += snprintf(buf + len, sizeof(smi->buf) - len,
988 "Port %d MIB counters\n",
991 for (i = 0; i < smi->num_mib_counters; ++i) {
992 len += snprintf(buf + len, sizeof(smi->buf) - len,
993 "%-36s: ", smi->mib_counters[i].name);
994 if (!smi->ops->get_mib_counter(smi, i, val->port_vlan,
996 len += snprintf(buf + len, sizeof(smi->buf) - len,
999 len += snprintf(buf + len, sizeof(smi->buf) - len,
1007 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib);
1009 int rtl8366_sw_get_vlan_info(struct switch_dev *dev,
1010 const struct switch_attr *attr,
1011 struct switch_val *val)
1015 struct rtl8366_vlan_4k vlan4k;
1016 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1017 char *buf = smi->buf;
1020 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1023 memset(buf, '\0', sizeof(smi->buf));
1025 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1029 len += snprintf(buf + len, sizeof(smi->buf) - len,
1030 "VLAN %d: Ports: '", vlan4k.vid);
1032 for (i = 0; i < smi->num_ports; i++) {
1033 if (!(vlan4k.member & (1 << i)))
1036 len += snprintf(buf + len, sizeof(smi->buf) - len, "%d%s", i,
1037 (vlan4k.untag & (1 << i)) ? "" : "t");
1040 len += snprintf(buf + len, sizeof(smi->buf) - len,
1041 "', members=%04x, untag=%04x, fid=%u",
1042 vlan4k.member, vlan4k.untag, vlan4k.fid);
1049 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_info);
1051 int rtl8366_sw_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
1053 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1054 struct switch_port *port;
1055 struct rtl8366_vlan_4k vlan4k;
1058 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1061 smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1063 port = &val->value.ports[0];
1065 for (i = 0; i < smi->num_ports; i++) {
1066 if (!(vlan4k.member & BIT(i)))
1070 port->flags = (vlan4k.untag & BIT(i)) ?
1071 0 : BIT(SWITCH_PORT_FLAG_TAGGED);
1077 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_ports);
1079 int rtl8366_sw_set_vlan_ports(struct switch_dev *dev, struct switch_val *val)
1081 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1082 struct switch_port *port;
1088 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1091 port = &val->value.ports[0];
1092 for (i = 0; i < val->len; i++, port++) {
1093 member |= BIT(port->id);
1095 if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED)))
1096 untag |= BIT(port->id);
1099 * To ensure that we have a valid MC entry for this VLAN,
1100 * initialize the port VLAN ID here.
1102 err = rtl8366_set_pvid(smi, port->id, val->port_vlan);
1107 return rtl8366_set_vlan(smi, val->port_vlan, member, untag, 0);
1109 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_ports);
1111 int rtl8366_sw_get_vlan_fid(struct switch_dev *dev,
1112 const struct switch_attr *attr,
1113 struct switch_val *val)
1115 struct rtl8366_vlan_4k vlan4k;
1116 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1119 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1122 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1126 val->value.i = vlan4k.fid;
1130 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_fid);
1132 int rtl8366_sw_set_vlan_fid(struct switch_dev *dev,
1133 const struct switch_attr *attr,
1134 struct switch_val *val)
1136 struct rtl8366_vlan_4k vlan4k;
1137 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1140 if (!smi->ops->is_vlan_valid(smi, val->port_vlan))
1143 if (val->value.i < 0 || val->value.i > attr->max)
1146 err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k);
1150 return rtl8366_set_vlan(smi, val->port_vlan,
1155 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_fid);
1157 int rtl8366_sw_get_vlan_enable(struct switch_dev *dev,
1158 const struct switch_attr *attr,
1159 struct switch_val *val)
1161 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1167 val->value.i = smi->vlan_enabled;
1169 val->value.i = smi->vlan4k_enabled;
1173 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_enable);
1175 int rtl8366_sw_set_vlan_enable(struct switch_dev *dev,
1176 const struct switch_attr *attr,
1177 struct switch_val *val)
1179 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1186 err = rtl8366_enable_vlan(smi, val->value.i);
1188 err = rtl8366_enable_vlan4k(smi, val->value.i);
1192 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_enable);
1194 struct rtl8366_smi *rtl8366_smi_alloc(struct device *parent)
1196 struct rtl8366_smi *smi;
1200 smi = kzalloc(sizeof(*smi), GFP_KERNEL);
1202 dev_err(parent, "no memory for private data\n");
1206 smi->parent = parent;
1209 EXPORT_SYMBOL_GPL(rtl8366_smi_alloc);
1211 static int __rtl8366_smi_init(struct rtl8366_smi *smi, const char *name)
1215 err = gpio_request(smi->gpio_sda, name);
1217 printk(KERN_ERR "rtl8366_smi: gpio_request failed for %u, err=%d\n",
1218 smi->gpio_sda, err);
1222 err = gpio_request(smi->gpio_sck, name);
1224 printk(KERN_ERR "rtl8366_smi: gpio_request failed for %u, err=%d\n",
1225 smi->gpio_sck, err);
1229 spin_lock_init(&smi->lock);
1233 gpio_free(smi->gpio_sda);
1238 static void __rtl8366_smi_cleanup(struct rtl8366_smi *smi)
1240 gpio_free(smi->gpio_sck);
1241 gpio_free(smi->gpio_sda);
1244 enum rtl8366_type rtl8366_smi_detect(struct rtl8366_platform_data *pdata)
1246 static struct rtl8366_smi smi;
1247 enum rtl8366_type type = RTL8366_TYPE_UNKNOWN;
1250 memset(&smi, 0, sizeof(smi));
1251 smi.gpio_sda = pdata->gpio_sda;
1252 smi.gpio_sck = pdata->gpio_sck;
1254 smi.cmd_read = 0xa9;
1255 smi.cmd_write = 0xa8;
1257 if (__rtl8366_smi_init(&smi, "rtl8366"))
1260 if (rtl8366_smi_read_reg(&smi, 0x5c, ®))
1265 printk("Found an RTL8366S switch\n");
1266 type = RTL8366_TYPE_S;
1269 printk("Found an RTL8366RB switch\n");
1270 type = RTL8366_TYPE_RB;
1273 printk("Found an Unknown RTL8366 switch (id=0x%04x)\n", reg);
1278 __rtl8366_smi_cleanup(&smi);
1283 int rtl8366_smi_init(struct rtl8366_smi *smi)
1290 err = __rtl8366_smi_init(smi, dev_name(smi->parent));
1294 spin_lock_init(&smi->lock);
1296 dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n",
1297 smi->gpio_sda, smi->gpio_sck);
1299 err = smi->ops->detect(smi);
1301 dev_err(smi->parent, "chip detection failed, err=%d\n", err);
1305 err = smi->ops->reset_chip(smi);
1309 err = smi->ops->setup(smi);
1311 dev_err(smi->parent, "chip setup failed, err=%d\n", err);
1315 err = rtl8366_init_vlan(smi);
1317 dev_err(smi->parent, "VLAN initialization failed, err=%d\n",
1322 err = rtl8366_enable_all_ports(smi, 1);
1326 err = rtl8366_smi_mii_init(smi);
1330 rtl8366_debugfs_init(smi);
1335 __rtl8366_smi_cleanup(smi);
1339 EXPORT_SYMBOL_GPL(rtl8366_smi_init);
1341 void rtl8366_smi_cleanup(struct rtl8366_smi *smi)
1343 rtl8366_debugfs_remove(smi);
1344 rtl8366_smi_mii_cleanup(smi);
1345 gpio_free(smi->gpio_sck);
1346 gpio_free(smi->gpio_sda);
1348 EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
1350 MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
1351 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1352 MODULE_LICENSE("GPL v2");