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");
155 static int rtl8366_smi_write_byte(struct rtl8366_smi
*smi
, u8 data
)
157 rtl8366_smi_write_bits(smi
, data
, 8);
158 return rtl8366_smi_wait_for_ack(smi
);
161 static int rtl8366_smi_write_byte_noack(struct rtl8366_smi
*smi
, u8 data
)
163 rtl8366_smi_write_bits(smi
, data
, 8);
167 static int rtl8366_smi_read_byte0(struct rtl8366_smi
*smi
, u8
*data
)
172 rtl8366_smi_read_bits(smi
, 8, &t
);
176 rtl8366_smi_write_bits(smi
, 0x00, 1);
181 static int rtl8366_smi_read_byte1(struct rtl8366_smi
*smi
, u8
*data
)
186 rtl8366_smi_read_bits(smi
, 8, &t
);
190 rtl8366_smi_write_bits(smi
, 0x01, 1);
195 int rtl8366_smi_read_reg(struct rtl8366_smi
*smi
, u32 addr
, u32
*data
)
202 spin_lock_irqsave(&smi
->lock
, flags
);
204 rtl8366_smi_start(smi
);
206 /* send READ command */
207 ret
= rtl8366_smi_write_byte(smi
, smi
->cmd_read
);
212 ret
= rtl8366_smi_write_byte(smi
, addr
& 0xff);
217 ret
= rtl8366_smi_write_byte(smi
, addr
>> 8);
222 rtl8366_smi_read_byte0(smi
, &lo
);
223 /* read DATA[15:8] */
224 rtl8366_smi_read_byte1(smi
, &hi
);
226 *data
= ((u32
) lo
) | (((u32
) hi
) << 8);
231 rtl8366_smi_stop(smi
);
232 spin_unlock_irqrestore(&smi
->lock
, flags
);
236 EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg
);
238 static int __rtl8366_smi_write_reg(struct rtl8366_smi
*smi
,
239 u32 addr
, u32 data
, bool ack
)
244 spin_lock_irqsave(&smi
->lock
, flags
);
246 rtl8366_smi_start(smi
);
248 /* send WRITE command */
249 ret
= rtl8366_smi_write_byte(smi
, smi
->cmd_write
);
254 ret
= rtl8366_smi_write_byte(smi
, addr
& 0xff);
259 ret
= rtl8366_smi_write_byte(smi
, addr
>> 8);
263 /* write DATA[7:0] */
264 ret
= rtl8366_smi_write_byte(smi
, data
& 0xff);
268 /* write DATA[15:8] */
270 ret
= rtl8366_smi_write_byte(smi
, data
>> 8);
272 ret
= rtl8366_smi_write_byte_noack(smi
, data
>> 8);
279 rtl8366_smi_stop(smi
);
280 spin_unlock_irqrestore(&smi
->lock
, flags
);
285 int rtl8366_smi_write_reg(struct rtl8366_smi
*smi
, u32 addr
, u32 data
)
287 return __rtl8366_smi_write_reg(smi
, addr
, data
, true);
289 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg
);
291 int rtl8366_smi_write_reg_noack(struct rtl8366_smi
*smi
, u32 addr
, u32 data
)
293 return __rtl8366_smi_write_reg(smi
, addr
, data
, false);
295 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg_noack
);
297 int rtl8366_smi_rmwr(struct rtl8366_smi
*smi
, u32 addr
, u32 mask
, u32 data
)
302 err
= rtl8366_smi_read_reg(smi
, addr
, &t
);
306 err
= rtl8366_smi_write_reg(smi
, addr
, (t
& ~mask
) | data
);
310 EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr
);
312 static int rtl8366_mc_is_used(struct rtl8366_smi
*smi
, int mc_index
, int *used
)
318 for (i
= 0; i
< smi
->num_ports
; i
++) {
321 err
= smi
->ops
->get_mc_index(smi
, i
, &index
);
325 if (mc_index
== index
) {
334 static int rtl8366_set_vlan(struct rtl8366_smi
*smi
, int vid
, u32 member
,
337 struct rtl8366_vlan_4k vlan4k
;
341 /* Update the 4K table */
342 err
= smi
->ops
->get_vlan_4k(smi
, vid
, &vlan4k
);
346 vlan4k
.member
= member
;
347 vlan4k
.untag
= untag
;
349 err
= smi
->ops
->set_vlan_4k(smi
, &vlan4k
);
353 /* Try to find an existing MC entry for this VID */
354 for (i
= 0; i
< smi
->num_vlan_mc
; i
++) {
355 struct rtl8366_vlan_mc vlanmc
;
357 err
= smi
->ops
->get_vlan_mc(smi
, i
, &vlanmc
);
361 if (vid
== vlanmc
.vid
) {
362 /* update the MC entry */
363 vlanmc
.member
= member
;
364 vlanmc
.untag
= untag
;
367 err
= smi
->ops
->set_vlan_mc(smi
, i
, &vlanmc
);
375 static int rtl8366_get_pvid(struct rtl8366_smi
*smi
, int port
, int *val
)
377 struct rtl8366_vlan_mc vlanmc
;
381 err
= smi
->ops
->get_mc_index(smi
, port
, &index
);
385 err
= smi
->ops
->get_vlan_mc(smi
, index
, &vlanmc
);
393 static int rtl8366_set_pvid(struct rtl8366_smi
*smi
, unsigned port
,
396 struct rtl8366_vlan_mc vlanmc
;
397 struct rtl8366_vlan_4k vlan4k
;
401 /* Try to find an existing MC entry for this VID */
402 for (i
= 0; i
< smi
->num_vlan_mc
; i
++) {
403 err
= smi
->ops
->get_vlan_mc(smi
, i
, &vlanmc
);
407 if (vid
== vlanmc
.vid
) {
408 err
= smi
->ops
->set_vlan_mc(smi
, i
, &vlanmc
);
412 err
= smi
->ops
->set_mc_index(smi
, port
, i
);
417 /* We have no MC entry for this VID, try to find an empty one */
418 for (i
= 0; i
< smi
->num_vlan_mc
; i
++) {
419 err
= smi
->ops
->get_vlan_mc(smi
, i
, &vlanmc
);
423 if (vlanmc
.vid
== 0 && vlanmc
.member
== 0) {
424 /* Update the entry from the 4K table */
425 err
= smi
->ops
->get_vlan_4k(smi
, vid
, &vlan4k
);
430 vlanmc
.member
= vlan4k
.member
;
431 vlanmc
.untag
= vlan4k
.untag
;
432 vlanmc
.fid
= vlan4k
.fid
;
433 err
= smi
->ops
->set_vlan_mc(smi
, i
, &vlanmc
);
437 err
= smi
->ops
->set_mc_index(smi
, port
, i
);
442 /* MC table is full, try to find an unused entry and replace it */
443 for (i
= 0; i
< smi
->num_vlan_mc
; i
++) {
446 err
= rtl8366_mc_is_used(smi
, i
, &used
);
451 /* Update the entry from the 4K table */
452 err
= smi
->ops
->get_vlan_4k(smi
, vid
, &vlan4k
);
457 vlanmc
.member
= vlan4k
.member
;
458 vlanmc
.untag
= vlan4k
.untag
;
459 vlanmc
.fid
= vlan4k
.fid
;
460 err
= smi
->ops
->set_vlan_mc(smi
, i
, &vlanmc
);
464 err
= smi
->ops
->set_mc_index(smi
, port
, i
);
470 "all VLAN member configurations are in use\n");
475 int rtl8366_enable_vlan(struct rtl8366_smi
*smi
, int enable
)
479 err
= smi
->ops
->enable_vlan(smi
, enable
);
483 smi
->vlan_enabled
= enable
;
486 smi
->vlan4k_enabled
= 0;
487 err
= smi
->ops
->enable_vlan4k(smi
, enable
);
492 EXPORT_SYMBOL_GPL(rtl8366_enable_vlan
);
494 static int rtl8366_enable_vlan4k(struct rtl8366_smi
*smi
, int enable
)
499 err
= smi
->ops
->enable_vlan(smi
, enable
);
503 smi
->vlan_enabled
= enable
;
506 err
= smi
->ops
->enable_vlan4k(smi
, enable
);
510 smi
->vlan4k_enabled
= enable
;
514 int rtl8366_enable_all_ports(struct rtl8366_smi
*smi
, int enable
)
519 for (port
= 0; port
< smi
->num_ports
; port
++) {
520 err
= smi
->ops
->enable_port(smi
, port
, enable
);
527 EXPORT_SYMBOL_GPL(rtl8366_enable_all_ports
);
529 int rtl8366_reset_vlan(struct rtl8366_smi
*smi
)
531 struct rtl8366_vlan_mc vlanmc
;
535 rtl8366_enable_vlan(smi
, 0);
536 rtl8366_enable_vlan4k(smi
, 0);
538 /* clear VLAN member configurations */
544 for (i
= 0; i
< smi
->num_vlan_mc
; i
++) {
545 err
= smi
->ops
->set_vlan_mc(smi
, i
, &vlanmc
);
552 EXPORT_SYMBOL_GPL(rtl8366_reset_vlan
);
554 static int rtl8366_init_vlan(struct rtl8366_smi
*smi
)
559 err
= rtl8366_reset_vlan(smi
);
563 for (port
= 0; port
< smi
->num_ports
; port
++) {
566 if (port
== smi
->cpu_port
)
567 mask
= (1 << smi
->num_ports
) - 1;
569 mask
= (1 << port
) | (1 << smi
->cpu_port
);
571 err
= rtl8366_set_vlan(smi
, (port
+ 1), mask
, mask
, 0);
575 err
= rtl8366_set_pvid(smi
, port
, (port
+ 1));
580 return rtl8366_enable_vlan(smi
, 1);
583 #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
584 int rtl8366_debugfs_open(struct inode
*inode
, struct file
*file
)
586 file
->private_data
= inode
->i_private
;
589 EXPORT_SYMBOL_GPL(rtl8366_debugfs_open
);
591 static ssize_t
rtl8366_read_debugfs_vlan_mc(struct file
*file
,
592 char __user
*user_buf
,
593 size_t count
, loff_t
*ppos
)
595 struct rtl8366_smi
*smi
= (struct rtl8366_smi
*)file
->private_data
;
597 char *buf
= smi
->buf
;
599 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
600 "%2s %6s %4s %6s %6s %3s\n",
601 "id", "vid","prio", "member", "untag", "fid");
603 for (i
= 0; i
< smi
->num_vlan_mc
; ++i
) {
604 struct rtl8366_vlan_mc vlanmc
;
606 smi
->ops
->get_vlan_mc(smi
, i
, &vlanmc
);
608 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
609 "%2d %6d %4d 0x%04x 0x%04x %3d\n",
610 i
, vlanmc
.vid
, vlanmc
.priority
,
611 vlanmc
.member
, vlanmc
.untag
, vlanmc
.fid
);
614 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
617 #define RTL8366_VLAN4K_PAGE_SIZE 64
618 #define RTL8366_VLAN4K_NUM_PAGES (4096 / RTL8366_VLAN4K_PAGE_SIZE)
620 static ssize_t
rtl8366_read_debugfs_vlan_4k(struct file
*file
,
621 char __user
*user_buf
,
622 size_t count
, loff_t
*ppos
)
624 struct rtl8366_smi
*smi
= (struct rtl8366_smi
*)file
->private_data
;
627 char *buf
= smi
->buf
;
629 if (smi
->dbg_vlan_4k_page
>= RTL8366_VLAN4K_NUM_PAGES
) {
630 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
631 "invalid page: %u\n", smi
->dbg_vlan_4k_page
);
632 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
635 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
637 "vid", "member", "untag", "fid");
639 offset
= RTL8366_VLAN4K_PAGE_SIZE
* smi
->dbg_vlan_4k_page
;
640 for (i
= 0; i
< RTL8366_VLAN4K_PAGE_SIZE
; i
++) {
641 struct rtl8366_vlan_4k vlan4k
;
643 smi
->ops
->get_vlan_4k(smi
, offset
+ i
, &vlan4k
);
645 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
646 "%4d 0x%04x 0x%04x %3d\n",
647 vlan4k
.vid
, vlan4k
.member
,
648 vlan4k
.untag
, vlan4k
.fid
);
651 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
654 static ssize_t
rtl8366_read_debugfs_pvid(struct file
*file
,
655 char __user
*user_buf
,
656 size_t count
, loff_t
*ppos
)
658 struct rtl8366_smi
*smi
= (struct rtl8366_smi
*)file
->private_data
;
659 char *buf
= smi
->buf
;
663 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
, "%4s %4s\n",
666 for (i
= 0; i
< smi
->num_ports
; i
++) {
670 err
= rtl8366_get_pvid(smi
, i
, &pvid
);
672 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
675 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
676 "%4d %4d\n", i
, pvid
);
679 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
682 static ssize_t
rtl8366_read_debugfs_reg(struct file
*file
,
683 char __user
*user_buf
,
684 size_t count
, loff_t
*ppos
)
686 struct rtl8366_smi
*smi
= (struct rtl8366_smi
*)file
->private_data
;
687 u32 t
, reg
= smi
->dbg_reg
;
689 char *buf
= smi
->buf
;
691 memset(buf
, '\0', sizeof(smi
->buf
));
693 err
= rtl8366_smi_read_reg(smi
, reg
, &t
);
695 len
+= snprintf(buf
, sizeof(smi
->buf
),
696 "Read failed (reg: 0x%04x)\n", reg
);
697 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
700 len
+= snprintf(buf
, sizeof(smi
->buf
), "reg = 0x%04x, val = 0x%04x\n",
703 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
706 static ssize_t
rtl8366_write_debugfs_reg(struct file
*file
,
707 const char __user
*user_buf
,
708 size_t count
, loff_t
*ppos
)
710 struct rtl8366_smi
*smi
= (struct rtl8366_smi
*)file
->private_data
;
712 u32 reg
= smi
->dbg_reg
;
715 char *buf
= smi
->buf
;
717 len
= min(count
, sizeof(smi
->buf
) - 1);
718 if (copy_from_user(buf
, user_buf
, len
)) {
719 dev_err(smi
->parent
, "copy from user failed\n");
724 if (len
> 0 && buf
[len
- 1] == '\n')
728 if (strict_strtoul(buf
, 16, &data
)) {
729 dev_err(smi
->parent
, "Invalid reg value %s\n", buf
);
731 err
= rtl8366_smi_write_reg(smi
, reg
, data
);
734 "writing reg 0x%04x val 0x%04lx failed\n",
742 static ssize_t
rtl8366_read_debugfs_mibs(struct file
*file
,
743 char __user
*user_buf
,
744 size_t count
, loff_t
*ppos
)
746 struct rtl8366_smi
*smi
= file
->private_data
;
748 char *buf
= smi
->buf
;
750 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
, "%-36s",
753 for (i
= 0; i
< smi
->num_ports
; i
++) {
756 snprintf(port_buf
, sizeof(port_buf
), "Port %d", i
);
757 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
, " %12s",
760 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
, "\n");
762 for (i
= 0; i
< smi
->num_mib_counters
; i
++) {
763 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
, "%-36s ",
764 smi
->mib_counters
[i
].name
);
765 for (j
= 0; j
< smi
->num_ports
; j
++) {
766 unsigned long long counter
= 0;
768 if (!smi
->ops
->get_mib_counter(smi
, i
, j
, &counter
))
769 len
+= snprintf(buf
+ len
,
770 sizeof(smi
->buf
) - len
,
773 len
+= snprintf(buf
+ len
,
774 sizeof(smi
->buf
) - len
,
777 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
, "\n");
780 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
783 static const struct file_operations fops_rtl8366_regs
= {
784 .read
= rtl8366_read_debugfs_reg
,
785 .write
= rtl8366_write_debugfs_reg
,
786 .open
= rtl8366_debugfs_open
,
790 static const struct file_operations fops_rtl8366_vlan_mc
= {
791 .read
= rtl8366_read_debugfs_vlan_mc
,
792 .open
= rtl8366_debugfs_open
,
796 static const struct file_operations fops_rtl8366_vlan_4k
= {
797 .read
= rtl8366_read_debugfs_vlan_4k
,
798 .open
= rtl8366_debugfs_open
,
802 static const struct file_operations fops_rtl8366_pvid
= {
803 .read
= rtl8366_read_debugfs_pvid
,
804 .open
= rtl8366_debugfs_open
,
808 static const struct file_operations fops_rtl8366_mibs
= {
809 .read
= rtl8366_read_debugfs_mibs
,
810 .open
= rtl8366_debugfs_open
,
814 static void rtl8366_debugfs_init(struct rtl8366_smi
*smi
)
819 if (!smi
->debugfs_root
)
820 smi
->debugfs_root
= debugfs_create_dir(dev_name(smi
->parent
),
823 if (!smi
->debugfs_root
) {
824 dev_err(smi
->parent
, "Unable to create debugfs dir\n");
827 root
= smi
->debugfs_root
;
829 node
= debugfs_create_x16("reg", S_IRUGO
| S_IWUSR
, root
,
832 dev_err(smi
->parent
, "Creating debugfs file '%s' failed\n",
837 node
= debugfs_create_file("val", S_IRUGO
| S_IWUSR
, root
, smi
,
840 dev_err(smi
->parent
, "Creating debugfs file '%s' failed\n",
845 node
= debugfs_create_file("vlan_mc", S_IRUSR
, root
, smi
,
846 &fops_rtl8366_vlan_mc
);
848 dev_err(smi
->parent
, "Creating debugfs file '%s' failed\n",
853 node
= debugfs_create_u8("vlan_4k_page", S_IRUGO
| S_IWUSR
, root
,
854 &smi
->dbg_vlan_4k_page
);
856 dev_err(smi
->parent
, "Creating debugfs file '%s' failed\n",
861 node
= debugfs_create_file("vlan_4k", S_IRUSR
, root
, smi
,
862 &fops_rtl8366_vlan_4k
);
864 dev_err(smi
->parent
, "Creating debugfs file '%s' failed\n",
869 node
= debugfs_create_file("pvid", S_IRUSR
, root
, smi
,
872 dev_err(smi
->parent
, "Creating debugfs file '%s' failed\n",
877 node
= debugfs_create_file("mibs", S_IRUSR
, smi
->debugfs_root
, smi
,
880 dev_err(smi
->parent
, "Creating debugfs file '%s' failed\n",
884 static void rtl8366_debugfs_remove(struct rtl8366_smi
*smi
)
886 if (smi
->debugfs_root
) {
887 debugfs_remove_recursive(smi
->debugfs_root
);
888 smi
->debugfs_root
= NULL
;
892 static inline void rtl8366_debugfs_init(struct rtl8366_smi
*smi
) {}
893 static inline void rtl8366_debugfs_remove(struct rtl8366_smi
*smi
) {}
894 #endif /* CONFIG_RTL8366S_PHY_DEBUG_FS */
896 static int rtl8366_smi_mii_init(struct rtl8366_smi
*smi
)
901 smi
->mii_bus
= mdiobus_alloc();
902 if (smi
->mii_bus
== NULL
) {
907 smi
->mii_bus
->priv
= (void *) smi
;
908 smi
->mii_bus
->name
= dev_name(smi
->parent
);
909 smi
->mii_bus
->read
= smi
->ops
->mii_read
;
910 smi
->mii_bus
->write
= smi
->ops
->mii_write
;
911 snprintf(smi
->mii_bus
->id
, MII_BUS_ID_SIZE
, "%s",
912 dev_name(smi
->parent
));
913 smi
->mii_bus
->parent
= smi
->parent
;
914 smi
->mii_bus
->phy_mask
= ~(0x1f);
915 smi
->mii_bus
->irq
= smi
->mii_irq
;
916 for (i
= 0; i
< PHY_MAX_ADDR
; i
++)
917 smi
->mii_irq
[i
] = PHY_POLL
;
919 ret
= mdiobus_register(smi
->mii_bus
);
926 mdiobus_free(smi
->mii_bus
);
931 static void rtl8366_smi_mii_cleanup(struct rtl8366_smi
*smi
)
933 mdiobus_unregister(smi
->mii_bus
);
934 mdiobus_free(smi
->mii_bus
);
937 int rtl8366_sw_get_port_pvid(struct switch_dev
*dev
, int port
, int *val
)
939 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
940 return rtl8366_get_pvid(smi
, port
, val
);
942 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_pvid
);
944 int rtl8366_sw_set_port_pvid(struct switch_dev
*dev
, int port
, int val
)
946 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
947 return rtl8366_set_pvid(smi
, port
, val
);
949 EXPORT_SYMBOL_GPL(rtl8366_sw_set_port_pvid
);
951 int rtl8366_sw_get_port_mib(struct switch_dev
*dev
,
952 const struct switch_attr
*attr
,
953 struct switch_val
*val
)
955 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
957 unsigned long long counter
= 0;
958 char *buf
= smi
->buf
;
960 if (val
->port_vlan
>= smi
->num_ports
)
963 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
964 "Port %d MIB counters\n",
967 for (i
= 0; i
< smi
->num_mib_counters
; ++i
) {
968 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
969 "%-36s: ", smi
->mib_counters
[i
].name
);
970 if (!smi
->ops
->get_mib_counter(smi
, i
, val
->port_vlan
,
972 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
975 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
983 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib
);
985 int rtl8366_sw_get_vlan_info(struct switch_dev
*dev
,
986 const struct switch_attr
*attr
,
987 struct switch_val
*val
)
991 struct rtl8366_vlan_4k vlan4k
;
992 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
993 char *buf
= smi
->buf
;
996 if (!smi
->ops
->is_vlan_valid(smi
, val
->port_vlan
))
999 memset(buf
, '\0', sizeof(smi
->buf
));
1001 err
= smi
->ops
->get_vlan_4k(smi
, val
->port_vlan
, &vlan4k
);
1005 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
1006 "VLAN %d: Ports: '", vlan4k
.vid
);
1008 for (i
= 0; i
< smi
->num_ports
; i
++) {
1009 if (!(vlan4k
.member
& (1 << i
)))
1012 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
, "%d%s", i
,
1013 (vlan4k
.untag
& (1 << i
)) ? "" : "t");
1016 len
+= snprintf(buf
+ len
, sizeof(smi
->buf
) - len
,
1017 "', members=%04x, untag=%04x, fid=%u",
1018 vlan4k
.member
, vlan4k
.untag
, vlan4k
.fid
);
1025 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_info
);
1027 int rtl8366_sw_get_vlan_ports(struct switch_dev
*dev
, struct switch_val
*val
)
1029 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
1030 struct switch_port
*port
;
1031 struct rtl8366_vlan_4k vlan4k
;
1034 if (!smi
->ops
->is_vlan_valid(smi
, val
->port_vlan
))
1037 smi
->ops
->get_vlan_4k(smi
, val
->port_vlan
, &vlan4k
);
1039 port
= &val
->value
.ports
[0];
1041 for (i
= 0; i
< smi
->num_ports
; i
++) {
1042 if (!(vlan4k
.member
& BIT(i
)))
1046 port
->flags
= (vlan4k
.untag
& BIT(i
)) ?
1047 0 : BIT(SWITCH_PORT_FLAG_TAGGED
);
1053 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_ports
);
1055 int rtl8366_sw_set_vlan_ports(struct switch_dev
*dev
, struct switch_val
*val
)
1057 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
1058 struct switch_port
*port
;
1064 if (!smi
->ops
->is_vlan_valid(smi
, val
->port_vlan
))
1067 port
= &val
->value
.ports
[0];
1068 for (i
= 0; i
< val
->len
; i
++, port
++) {
1069 member
|= BIT(port
->id
);
1071 if (!(port
->flags
& BIT(SWITCH_PORT_FLAG_TAGGED
)))
1072 untag
|= BIT(port
->id
);
1075 * To ensure that we have a valid MC entry for this VLAN,
1076 * initialize the port VLAN ID here.
1078 err
= rtl8366_set_pvid(smi
, port
->id
, val
->port_vlan
);
1083 return rtl8366_set_vlan(smi
, val
->port_vlan
, member
, untag
, 0);
1085 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_ports
);
1087 int rtl8366_sw_get_vlan_fid(struct switch_dev
*dev
,
1088 const struct switch_attr
*attr
,
1089 struct switch_val
*val
)
1091 struct rtl8366_vlan_4k vlan4k
;
1092 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
1095 if (!smi
->ops
->is_vlan_valid(smi
, val
->port_vlan
))
1098 err
= smi
->ops
->get_vlan_4k(smi
, val
->port_vlan
, &vlan4k
);
1102 val
->value
.i
= vlan4k
.fid
;
1106 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_fid
);
1108 int rtl8366_sw_set_vlan_fid(struct switch_dev
*dev
,
1109 const struct switch_attr
*attr
,
1110 struct switch_val
*val
)
1112 struct rtl8366_vlan_4k vlan4k
;
1113 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
1116 if (!smi
->ops
->is_vlan_valid(smi
, val
->port_vlan
))
1119 if (val
->value
.i
< 0 || val
->value
.i
> attr
->max
)
1122 err
= smi
->ops
->get_vlan_4k(smi
, val
->port_vlan
, &vlan4k
);
1126 return rtl8366_set_vlan(smi
, val
->port_vlan
,
1131 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_fid
);
1133 int rtl8366_sw_get_vlan_enable(struct switch_dev
*dev
,
1134 const struct switch_attr
*attr
,
1135 struct switch_val
*val
)
1137 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
1143 val
->value
.i
= smi
->vlan_enabled
;
1145 val
->value
.i
= smi
->vlan4k_enabled
;
1149 EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_enable
);
1151 int rtl8366_sw_set_vlan_enable(struct switch_dev
*dev
,
1152 const struct switch_attr
*attr
,
1153 struct switch_val
*val
)
1155 struct rtl8366_smi
*smi
= sw_to_rtl8366_smi(dev
);
1162 err
= rtl8366_enable_vlan(smi
, val
->value
.i
);
1164 err
= rtl8366_enable_vlan4k(smi
, val
->value
.i
);
1168 EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_enable
);
1170 struct rtl8366_smi
*rtl8366_smi_alloc(struct device
*parent
)
1172 struct rtl8366_smi
*smi
;
1176 smi
= kzalloc(sizeof(*smi
), GFP_KERNEL
);
1178 dev_err(parent
, "no memory for private data\n");
1182 smi
->parent
= parent
;
1185 EXPORT_SYMBOL_GPL(rtl8366_smi_alloc
);
1187 static int __rtl8366_smi_init(struct rtl8366_smi
*smi
, const char *name
)
1191 err
= gpio_request(smi
->gpio_sda
, name
);
1193 printk(KERN_ERR
"rtl8366_smi: gpio_request failed for %u, err=%d\n",
1194 smi
->gpio_sda
, err
);
1198 err
= gpio_request(smi
->gpio_sck
, name
);
1200 printk(KERN_ERR
"rtl8366_smi: gpio_request failed for %u, err=%d\n",
1201 smi
->gpio_sck
, err
);
1205 spin_lock_init(&smi
->lock
);
1209 gpio_free(smi
->gpio_sda
);
1214 static void __rtl8366_smi_cleanup(struct rtl8366_smi
*smi
)
1216 gpio_free(smi
->gpio_sck
);
1217 gpio_free(smi
->gpio_sda
);
1220 enum rtl8366_type
rtl8366_smi_detect(struct rtl8366_platform_data
*pdata
)
1222 static struct rtl8366_smi smi
;
1223 enum rtl8366_type type
= RTL8366_TYPE_UNKNOWN
;
1226 memset(&smi
, 0, sizeof(smi
));
1227 smi
.gpio_sda
= pdata
->gpio_sda
;
1228 smi
.gpio_sck
= pdata
->gpio_sck
;
1230 smi
.cmd_read
= 0xa9;
1231 smi
.cmd_write
= 0xa8;
1233 if (__rtl8366_smi_init(&smi
, "rtl8366"))
1236 if (rtl8366_smi_read_reg(&smi
, 0x5c, ®
))
1241 printk("Found an RTL8366S switch\n");
1242 type
= RTL8366_TYPE_S
;
1245 printk("Found an RTL8366RB switch\n");
1246 type
= RTL8366_TYPE_RB
;
1249 printk("Found an Unknown RTL8366 switch (id=0x%04x)\n", reg
);
1254 __rtl8366_smi_cleanup(&smi
);
1259 int rtl8366_smi_init(struct rtl8366_smi
*smi
)
1266 err
= __rtl8366_smi_init(smi
, dev_name(smi
->parent
));
1270 spin_lock_init(&smi
->lock
);
1272 dev_info(smi
->parent
, "using GPIO pins %u (SDA) and %u (SCK)\n",
1273 smi
->gpio_sda
, smi
->gpio_sck
);
1275 err
= smi
->ops
->detect(smi
);
1277 dev_err(smi
->parent
, "chip detection failed, err=%d\n", err
);
1281 err
= smi
->ops
->setup(smi
);
1283 dev_err(smi
->parent
, "chip setup failed, err=%d\n", err
);
1287 err
= rtl8366_init_vlan(smi
);
1289 dev_err(smi
->parent
, "VLAN initialization failed, err=%d\n",
1294 err
= rtl8366_enable_all_ports(smi
, 1);
1298 err
= rtl8366_smi_mii_init(smi
);
1302 rtl8366_debugfs_init(smi
);
1307 __rtl8366_smi_cleanup(smi
);
1311 EXPORT_SYMBOL_GPL(rtl8366_smi_init
);
1313 void rtl8366_smi_cleanup(struct rtl8366_smi
*smi
)
1315 rtl8366_debugfs_remove(smi
);
1316 rtl8366_smi_mii_cleanup(smi
);
1317 gpio_free(smi
->gpio_sck
);
1318 gpio_free(smi
->gpio_sda
);
1320 EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup
);
1322 MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
1323 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1324 MODULE_LICENSE("GPL v2");