2 * swconfig-ip175c.c: Swconfig configuration for IC+ IP175C switch
4 * Copyright (C) 2008 Patrick Horn <patrick.horn@gmail.com>
5 * Copyright (C) 2008 Martin Mares <mj@ucw.cz>
6 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/init.h>
22 #include <linux/list.h>
23 #include <linux/skbuff.h>
24 #include <linux/mii.h>
25 #include <linux/phy.h>
26 #include <linux/delay.h>
27 #include <linux/switch.h>
32 typedef struct ip175c_reg
{
38 #define NOTSUPPORTED {-1,-1}
40 #define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
42 /*********** CONSTANTS ***********/
43 struct register_mappings
{
45 u16 MODEL_NO
; // compare to bits 4-9 of MII register 0,3.
49 /* The default VLAN for each port.
50 Default: 0x0001 for Ports 0,1,2,3
51 0x0002 for Ports 4,5 */
52 reg VLAN_DEFAULT_TAG_REG
[MAX_PORTS
];
54 /* These ports are tagged.
58 bitnum ADD_TAG_BIT
[MAX_PORTS
];
59 /* These ports are untagged.
60 Default: 0x00 (i.e. do not alter any VLAN tags...)
61 Maybe set to 0 if user disables VLANs. */
62 bitnum REMOVE_TAG_BIT
[MAX_PORTS
];
64 /* Port M and Port N are on the same VLAN.
65 Default: All ports on all VLANs. */
66 // Use register {29, 19+N/2}
68 // Port 5 uses register {30, 18} but same as odd bits.
69 reg VLAN_LOOKUP_REG_5
; // in a different register on IP175C.
70 bitnum VLAN_LOOKUP_EVEN_BIT
[MAX_PORTS
];
71 bitnum VLAN_LOOKUP_ODD_BIT
[MAX_PORTS
];
73 /* This VLAN corresponds to which ports.
74 Default: 0x2f,0x30,0x3f,0x3f... */
75 reg TAG_VLAN_MASK_REG
;
76 bitnum TAG_VLAN_MASK_EVEN_BIT
[MAX_PORTS
];
77 bitnum TAG_VLAN_MASK_ODD_BIT
[MAX_PORTS
];
86 reg ROUTER_CONTROL_REG
;
90 bitnum NUMLAN_GROUPS_MAX
;
91 bitnum NUMLAN_GROUPS_BIT
;
94 bitnum MII_REGISTER_EN_BIT
;
96 // set to 1 for 178C, 0 for 175C.
97 bitnum SIMPLE_VLAN_REGISTERS
; // 175C has two vlans per register but 178C has only one.
100 static const struct register_mappings IP178C
= {
103 .VLAN_DEFAULT_TAG_REG
= {
104 {30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
105 {30,9},{30,10},{30,11},
108 .ADD_TAG_REG
= {30,12},
109 .ADD_TAG_BIT
= {0,1,2,3,4,5,6,7,8},
110 .REMOVE_TAG_REG
= {30,13},
111 .REMOVE_TAG_BIT
= {4,5,6,7,8,9,10,11,12},
113 .SIMPLE_VLAN_REGISTERS
= 1,
115 .VLAN_LOOKUP_REG
= {31,0},// +N
116 .VLAN_LOOKUP_REG_5
= NOTSUPPORTED
, // not used with SIMPLE_VLAN_REGISTERS
117 .VLAN_LOOKUP_EVEN_BIT
= {0,1,2,3,4,5,6,7,8},
118 .VLAN_LOOKUP_ODD_BIT
= {0,1,2,3,4,5,6,7,8},
120 .TAG_VLAN_MASK_REG
= {30,14}, // +N
121 .TAG_VLAN_MASK_EVEN_BIT
= {0,1,2,3,4,5,6,7,8},
122 .TAG_VLAN_MASK_ODD_BIT
= {0,1,2,3,4,5,6,7,8},
127 .MODE_REG
= NOTSUPPORTED
,
129 .ROUTER_CONTROL_REG
= {30,30},
131 .NUMLAN_GROUPS_MAX
= 8,
132 .NUMLAN_GROUPS_BIT
= 8, // {0-2}
134 .VLAN_CONTROL_REG
= {30,13},
140 .MII_REGISTER_EN
= NOTSUPPORTED
,
144 static const struct register_mappings IP175C
= {
147 .VLAN_DEFAULT_TAG_REG
= {
148 {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
149 NOTSUPPORTED
,NOTSUPPORTED
,NOTSUPPORTED
152 .ADD_TAG_REG
= {29,23},
153 .REMOVE_TAG_REG
= {29,23},
154 .ADD_TAG_BIT
= {11,12,13,14,15,1,-1,-1,-1},
155 .REMOVE_TAG_BIT
= {6,7,8,9,10,0,-1,-1,-1},
157 .SIMPLE_VLAN_REGISTERS
= 0,
159 .VLAN_LOOKUP_REG
= {29,19},// +N/2
160 .VLAN_LOOKUP_REG_5
= {30,18},
161 .VLAN_LOOKUP_EVEN_BIT
= {8,9,10,11,12,15,-1,-1,-1},
162 .VLAN_LOOKUP_ODD_BIT
= {0,1,2,3,4,7,-1,-1,-1},
164 .TAG_VLAN_MASK_REG
= {30,1}, // +N/2
165 .TAG_VLAN_MASK_EVEN_BIT
= {0,1,2,3,4,5,-1,-1,-1},
166 .TAG_VLAN_MASK_ODD_BIT
= {8,9,10,11,12,13,-1,-1,-1},
173 .ROUTER_CONTROL_REG
= {30,9},
175 .NUMLAN_GROUPS_MAX
= 8,
176 .NUMLAN_GROUPS_BIT
= 0, // {0-2}
178 .VLAN_CONTROL_REG
= {30,9},
184 .MII_REGISTER_EN
= NOTSUPPORTED
,
188 static const struct register_mappings IP175A
= {
191 .VLAN_DEFAULT_TAG_REG
= {
192 {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED
,
193 NOTSUPPORTED
,NOTSUPPORTED
,NOTSUPPORTED
196 .ADD_TAG_REG
= {0,23},
197 .REMOVE_TAG_REG
= {0,23},
198 .ADD_TAG_BIT
= {11,12,13,14,15,1,-1,-1,-1},
199 .REMOVE_TAG_BIT
= {6,7,8,9,10,0,-1,-1,-1},
201 .SIMPLE_VLAN_REGISTERS
= 1,
203 // Only programmable via. EEPROM
204 .VLAN_LOOKUP_REG
= NOTSUPPORTED
,// +N/2
205 .VLAN_LOOKUP_REG_5
= NOTSUPPORTED
,
206 .VLAN_LOOKUP_EVEN_BIT
= {8,9,10,11,12,15,-1,-1,-1},
207 .VLAN_LOOKUP_ODD_BIT
= {0,1,2,3,4,7,-1,-1,-1},
209 .TAG_VLAN_MASK_REG
= NOTSUPPORTED
, // +N/2
210 .TAG_VLAN_MASK_EVEN_BIT
= {0,1,2,3,4,5,-1,-1,-1},
211 .TAG_VLAN_MASK_ODD_BIT
= {8,9,10,11,12,13,-1,-1,-1},
214 .RESET_REG
= NOTSUPPORTED
,
216 .MODE_REG
= NOTSUPPORTED
,
218 .ROUTER_CONTROL_REG
= NOTSUPPORTED
,
219 .VLAN_CONTROL_REG
= NOTSUPPORTED
,
222 .NUMLAN_GROUPS_MAX
= -1,
223 .NUMLAN_GROUPS_BIT
= -1, // {0-2}
228 .MII_REGISTER_EN
= {0, 12},
229 .MII_REGISTER_EN_BIT
= 7,
232 struct ip175c_state
{
233 struct switch_dev dev
;
234 struct mii_bus
*mii_bus
;
237 int router_mode
; // ROUTER_EN
238 int vlan_enabled
; // TAG_VLAN_EN
240 struct phy_device
*phy
;
241 unsigned int shareports
;
244 unsigned int add_tag
;
245 unsigned int remove_tag
;
247 unsigned int vlan_ports
[MAX_VLANS
];
248 const struct register_mappings
*regs
;
249 reg proc_mii
; /*!< phy/reg for the low level register access via /proc */
250 int proc_errno
; /*!< error code of the last read/write to "val" */
255 static int getPhy (struct ip175c_state
*state
, reg mii
)
257 struct mii_bus
*bus
= state
->mii_bus
;
262 mutex_lock(&bus
->mdio_lock
);
263 err
= bus
->read(bus
, mii
.p
, mii
.m
);
264 mutex_unlock(&bus
->mdio_lock
);
266 state
->proc_errno
= err
;
267 pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", mii
.p
,mii
.m
,-err
);
271 pr_debug("IP175C: Read MII register %d,%d -> %04x\n", mii
.p
, mii
.m
, err
);
275 static int setPhy (struct ip175c_state
*state
, reg mii
, u16 value
)
277 struct mii_bus
*bus
= state
->mii_bus
;
282 mutex_lock(&bus
->mdio_lock
);
283 err
= bus
->write(bus
, mii
.p
, mii
.m
, value
);
284 mutex_unlock(&bus
->mdio_lock
);
286 state
->proc_errno
= err
;
287 pr_warning("IP175C: Unable to set MII register %d,%d to %d: error %d\n", mii
.p
,mii
.m
,value
,-err
);
292 pr_debug("IP175C: Set MII register %d,%d to %04x\n", mii
.p
, mii
.m
, value
);
297 * These two macros are to simplify the mapping of logical bits to the bits in hardware.
298 * NOTE: these macros will return if there is an error!
301 #define GET_PORT_BITS(state, bits, addr, bit_lookup) \
303 int i, val = getPhy((state), (addr)); \
307 for (i = 0; i < MAX_PORTS; i++) { \
308 if ((bit_lookup)[i] == -1) continue; \
309 if (val & (1<<(bit_lookup)[i])) \
314 #define SET_PORT_BITS(state, bits, addr, bit_lookup) \
316 int i, val = getPhy((state), (addr)); \
319 for (i = 0; i < MAX_PORTS; i++) { \
320 unsigned int newmask = ((bits)&(1<<i)); \
321 if ((bit_lookup)[i] == -1) continue; \
322 val &= ~(1<<(bit_lookup)[i]); \
323 val |= ((newmask>>i)<<(bit_lookup)[i]); \
325 val = setPhy((state), (addr), val); \
330 static int get_model(struct ip175c_state
*state
)
332 reg oui_id_reg
= {0, 2};
334 reg model_no_reg
= {0, 3};
335 int model_no
, model_no_orig
;
337 // 175 and 178 have the same oui ID.
338 reg oui_id_reg_178c
= {5, 2}; // returns error on IP175C.
341 oui_id
= getPhy(state
, oui_id_reg
);
342 if (oui_id
!= 0x0243) {
344 return -ENODEV
; // Not a IC+ chip.
346 oui_id
= getPhy(state
, oui_id_reg_178c
);
347 if (oui_id
== 0x0243) {
351 model_no_orig
= getPhy(state
, model_no_reg
);
352 if (model_no_orig
< 0) {
355 model_no
= model_no_orig
>> 4; // shift out revision number.
356 model_no
&= 0x3f; // only take the model number (low 6 bits).
357 if (model_no
== IP175A
.MODEL_NO
) {
358 state
->regs
= &IP175A
;
359 } else if (model_no
== IP175C
.MODEL_NO
) {
361 state
->regs
= &IP178C
;
363 state
->regs
= &IP175C
;
366 printk(KERN_WARNING
"ip175c: Found an unknown IC+ switch with model number %02Xh.\n", model_no_orig
);
372 /** Get only the vlan and router flags on the router **/
373 static int get_flags(struct ip175c_state
*state
)
377 state
->router_mode
= 0;
378 state
->vlan_enabled
= -1; // hack
379 state
->num_vlans
= 0;
381 if (!REG_SUPP(state
->regs
->ROUTER_CONTROL_REG
)) {
382 return 0; // not an error if it doesn't support enable vlan.
385 val
= getPhy(state
, state
->regs
->ROUTER_CONTROL_REG
);
389 if (state
->regs
->ROUTER_EN_BIT
>= 0)
390 state
->router_mode
= ((val
>>state
->regs
->ROUTER_EN_BIT
) & 1);
392 if (state
->regs
->NUMLAN_GROUPS_BIT
>= 0) {
393 state
->num_vlans
= (val
>> state
->regs
->NUMLAN_GROUPS_BIT
);
394 state
->num_vlans
&= (state
->regs
->NUMLAN_GROUPS_MAX
-1);
395 state
->num_vlans
+=1; // does not include WAN.
399 val
= getPhy(state
, state
->regs
->VLAN_CONTROL_REG
);
403 if (state
->regs
->TAG_VLAN_BIT
>= 0)
404 state
->vlan_enabled
= ((val
>>state
->regs
->TAG_VLAN_BIT
) & 1);
408 /** Get all state variables for VLAN mappings and port-based tagging. **/
409 static int get_state(struct ip175c_state
*state
)
413 ret
= get_flags(state
);
417 GET_PORT_BITS(state
, state
->remove_tag
,
418 state
->regs
->REMOVE_TAG_REG
, state
->regs
->REMOVE_TAG_BIT
);
419 GET_PORT_BITS(state
, state
->add_tag
,
420 state
->regs
->ADD_TAG_REG
, state
->regs
->ADD_TAG_BIT
);
422 if (state
->vlan_enabled
== -1) {
423 // not sure how to get this...
424 state
->vlan_enabled
= (!state
->remove_tag
&& !state
->add_tag
);
427 if (REG_SUPP(state
->regs
->VLAN_LOOKUP_REG
)) {
428 for (j
=0; j
<MAX_PORTS
; j
++) {
429 state
->ports
[j
].shareports
= 0; // initialize them in case.
431 for (j
=0; j
<state
->regs
->NUM_PORTS
; j
++) {
433 const bitnum
*bit_lookup
= (j
%2==0)?
434 state
->regs
->VLAN_LOOKUP_EVEN_BIT
:
435 state
->regs
->VLAN_LOOKUP_ODD_BIT
;
436 addr
= state
->regs
->VLAN_LOOKUP_REG
;
437 if (state
->regs
->SIMPLE_VLAN_REGISTERS
) {
452 addr
= state
->regs
->VLAN_LOOKUP_REG_5
;
457 if (REG_SUPP(addr
)) {
458 GET_PORT_BITS(state
, state
->ports
[j
].shareports
, addr
, bit_lookup
);
462 for (j
=0; j
<MAX_PORTS
; j
++) {
463 state
->ports
[j
].shareports
= 0xff;
467 for (i
=0; i
<MAX_PORTS
; i
++) {
468 if (REG_SUPP(state
->regs
->VLAN_DEFAULT_TAG_REG
[i
])) {
469 int val
= getPhy(state
, state
->regs
->VLAN_DEFAULT_TAG_REG
[i
]);
473 state
->ports
[i
].vlan_tag
= val
;
475 state
->ports
[i
].vlan_tag
= 0;
479 if (REG_SUPP(state
->regs
->TAG_VLAN_MASK_REG
)) {
480 for (j
=0; j
<MAX_VLANS
; j
++) {
481 reg addr
= state
->regs
->TAG_VLAN_MASK_REG
;
482 const bitnum
*bit_lookup
= (j
%2==0)?
483 state
->regs
->TAG_VLAN_MASK_EVEN_BIT
:
484 state
->regs
->TAG_VLAN_MASK_ODD_BIT
;
485 if (state
->regs
->SIMPLE_VLAN_REGISTERS
) {
490 GET_PORT_BITS(state
, state
->vlan_ports
[j
], addr
, bit_lookup
);
493 for (j
=0; j
<MAX_VLANS
; j
++) {
494 state
->vlan_ports
[j
] = 0;
495 for (i
=0; i
<state
->regs
->NUM_PORTS
; i
++) {
496 if ((state
->ports
[i
].vlan_tag
== j
) ||
497 (state
->ports
[i
].vlan_tag
== 0)) {
498 state
->vlan_ports
[j
] |= (1<<i
);
508 /** Only update vlan and router flags in the switch **/
509 static int update_flags(struct ip175c_state
*state
)
513 if (!REG_SUPP(state
->regs
->ROUTER_CONTROL_REG
)) {
517 val
= getPhy(state
, state
->regs
->ROUTER_CONTROL_REG
);
521 if (state
->regs
->ROUTER_EN_BIT
>= 0) {
522 if (state
->router_mode
) {
523 val
|= (1<<state
->regs
->ROUTER_EN_BIT
);
525 val
&= (~(1<<state
->regs
->ROUTER_EN_BIT
));
528 if (state
->regs
->TAG_VLAN_BIT
>= 0) {
529 if (state
->vlan_enabled
) {
530 val
|= (1<<state
->regs
->TAG_VLAN_BIT
);
532 val
&= (~(1<<state
->regs
->TAG_VLAN_BIT
));
535 if (state
->regs
->NUMLAN_GROUPS_BIT
>= 0) {
536 val
&= (~((state
->regs
->NUMLAN_GROUPS_MAX
-1)<<state
->regs
->NUMLAN_GROUPS_BIT
));
537 if (state
->num_vlans
> state
->regs
->NUMLAN_GROUPS_MAX
) {
538 val
|= state
->regs
->NUMLAN_GROUPS_MAX
<< state
->regs
->NUMLAN_GROUPS_BIT
;
539 } else if (state
->num_vlans
>= 1) {
540 val
|= (state
->num_vlans
-1) << state
->regs
->NUMLAN_GROUPS_BIT
;
543 return setPhy(state
, state
->regs
->ROUTER_CONTROL_REG
, val
);
546 /** Update all VLAN and port state. Usually you should call "correct_vlan_state" first. **/
547 static int update_state(struct ip175c_state
*state
)
551 SET_PORT_BITS(state
, state
->add_tag
,
552 state
->regs
->ADD_TAG_REG
, state
->regs
->ADD_TAG_BIT
);
553 SET_PORT_BITS(state
, state
->remove_tag
,
554 state
->regs
->REMOVE_TAG_REG
, state
->regs
->REMOVE_TAG_BIT
);
556 if (REG_SUPP(state
->regs
->VLAN_LOOKUP_REG
)) {
557 for (j
=0; j
<state
->regs
->NUM_PORTS
; j
++) {
559 const bitnum
*bit_lookup
= (j
%2==0)?
560 state
->regs
->VLAN_LOOKUP_EVEN_BIT
:
561 state
->regs
->VLAN_LOOKUP_ODD_BIT
;
563 // duplicate code -- sorry
564 addr
= state
->regs
->VLAN_LOOKUP_REG
;
565 if (state
->regs
->SIMPLE_VLAN_REGISTERS
) {
580 addr
= state
->regs
->VLAN_LOOKUP_REG_5
;
583 addr
.m
= -1; // shouldn't get here, but...
587 //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
588 if (REG_SUPP(addr
)) {
589 SET_PORT_BITS(state
, state
->ports
[j
].shareports
, addr
, bit_lookup
);
593 if (REG_SUPP(state
->regs
->TAG_VLAN_MASK_REG
)) {
594 for (j
=0; j
<MAX_VLANS
; j
++) {
595 reg addr
= state
->regs
->TAG_VLAN_MASK_REG
;
596 const bitnum
*bit_lookup
= (j
%2==0)?
597 state
->regs
->TAG_VLAN_MASK_EVEN_BIT
:
598 state
->regs
->TAG_VLAN_MASK_ODD_BIT
;
599 unsigned int vlan_mask
;
600 if (state
->regs
->SIMPLE_VLAN_REGISTERS
) {
605 vlan_mask
= state
->vlan_ports
[j
];
606 SET_PORT_BITS(state
, vlan_mask
, addr
, bit_lookup
);
610 for (i
=0; i
<MAX_PORTS
; i
++) {
611 if (REG_SUPP(state
->regs
->VLAN_DEFAULT_TAG_REG
[i
])) {
612 int err
= setPhy(state
, state
->regs
->VLAN_DEFAULT_TAG_REG
[i
],
613 state
->ports
[i
].vlan_tag
);
620 return update_flags(state
);
622 // software reset: 30.0 = 0x175C
624 // reset ports 0,1,2,3,4
628 Uses only the VLAN port mask and the add tag mask to generate the other fields:
629 which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
631 static void correct_vlan_state(struct ip175c_state
*state
)
634 state
->num_vlans
= 0;
635 for (i
=0; i
<MAX_VLANS
; i
++) {
636 if (state
->vlan_ports
[i
] != 0) {
637 state
->num_vlans
= i
+1; //hack -- we need to store the "set" vlans somewhere...
641 for (i
=0; i
<state
->regs
->NUM_PORTS
; i
++) {
642 int oldtag
= state
->ports
[i
].vlan_tag
;
643 if (oldtag
>= 0 && oldtag
< MAX_VLANS
) {
644 if (state
->vlan_ports
[oldtag
] & (1<<i
)) {
645 continue; // primary vlan is valid.
648 state
->ports
[i
].vlan_tag
= 0;
651 for (i
=0; i
<state
->regs
->NUM_PORTS
; i
++) {
652 unsigned int portmask
= (1<<i
);
653 state
->ports
[i
].shareports
= portmask
;
654 for (j
=0; j
<MAX_VLANS
; j
++) {
655 if (state
->vlan_ports
[j
] & portmask
) {
656 state
->ports
[i
].shareports
|= state
->vlan_ports
[j
];
657 if (state
->ports
[i
].vlan_tag
== 0) {
658 state
->ports
[i
].vlan_tag
= j
;
662 if (!state
->vlan_enabled
) {
663 // share with everybody!
664 state
->ports
[i
].shareports
= (1<<state
->regs
->NUM_PORTS
)-1;
667 state
->remove_tag
= ((~state
->add_tag
) & ((1<<state
->regs
->NUM_PORTS
)-1));
670 static int ip175c_get_enable_vlan(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
672 struct ip175c_state
*state
= dev
->priv
;
675 err
= get_state(state
); // may be set in get_state.
678 val
->value
.i
= state
->vlan_enabled
;
682 static int ip175c_set_enable_vlan(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
684 struct ip175c_state
*state
= dev
->priv
;
689 err
= get_state(state
);
692 enable
= val
->value
.i
;
694 if (state
->vlan_enabled
== enable
) {
695 // do not change any state.
698 state
->vlan_enabled
= enable
;
700 // Otherwise, if we are switching state, set fields to a known default.
701 state
->remove_tag
= 0x0000;
702 state
->add_tag
= 0x0000;
703 for (i
= 0; i
< MAX_PORTS
; i
++) {
704 state
->ports
[i
].vlan_tag
= 0;
705 state
->ports
[i
].shareports
= 0xffff;
707 for (i
= 0; i
< MAX_VLANS
; i
++) {
708 state
->vlan_ports
[i
] = 0x0;
711 if (state
->vlan_enabled
) {
712 // updates other fields only based off vlan_ports and add_tag fields.
713 // Note that by default, no ports are in any vlans.
714 correct_vlan_state(state
);
716 // ensure sane defaults?
717 return update_state(state
);
720 static int ip175c_get_ports(struct switch_dev
*dev
, struct switch_val
*val
)
722 struct ip175c_state
*state
= dev
->priv
;
728 if (val
->port_vlan
>= dev
->vlans
|| val
->port_vlan
< 0)
731 err
= get_state(state
);
735 ports
= state
->vlan_ports
[val
->port_vlan
];
738 while (b
< MAX_PORTS
) {
740 int istagged
= ((state
->add_tag
>> b
) & 1);
741 val
->value
.ports
[ind
].id
= b
;
742 val
->value
.ports
[ind
].flags
= (istagged
<< SWITCH_PORT_FLAG_TAGGED
);
753 static int ip175c_set_ports(struct switch_dev
*dev
, struct switch_val
*val
)
755 struct ip175c_state
*state
= dev
->priv
;
759 if (val
->port_vlan
>= dev
->vlans
|| val
->port_vlan
< 0)
762 err
= get_state(state
);
766 state
->vlan_ports
[val
->port_vlan
] = 0;
767 for (i
= 0; i
< val
->len
; i
++) {
768 int bitmask
= (1<<val
->value
.ports
[i
].id
);
769 state
->vlan_ports
[val
->port_vlan
] |= bitmask
;
770 if (val
->value
.ports
[i
].flags
& (1<<SWITCH_PORT_FLAG_TAGGED
)) {
771 state
->add_tag
|= bitmask
;
773 state
->add_tag
&= (~bitmask
);
777 // no primary vlan id support in swconfig?
778 // primary vlan will be set to the first non-zero vlan a port is a member of.
779 for (i = 0; i< state->regs->NUM_PORTS; i++) {
780 if (vlan_config->pvid & (1<<i)) {
781 state->ports[i].vlan_tag = nr;
786 correct_vlan_state(state
);
787 err
= update_state(state
);
792 static int ip175c_apply(struct switch_dev
*dev
)
794 struct ip175c_state
*state
= dev
->priv
;
797 err
= get_flags(state
);
801 if (REG_SUPP(state
->regs
->MII_REGISTER_EN
)){
802 int val
= getPhy(state
, state
->regs
->MII_REGISTER_EN
);
806 val
|= (1<<state
->regs
->MII_REGISTER_EN_BIT
);
807 return setPhy(state
, state
->regs
->MII_REGISTER_EN
, val
);
812 static int ip175c_reset(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
814 struct ip175c_state
*state
= dev
->priv
;
817 err
= get_flags(state
);
821 if (REG_SUPP(state
->regs
->RESET_REG
)) {
822 err
= setPhy(state
, state
->regs
->RESET_REG
, state
->regs
->RESET_VAL
);
825 err
= getPhy(state
, state
->regs
->RESET_REG
);
827 /* data sheet specifies reset period is 2 msec
828 (don't see any mention of the 2ms delay in the IP178C spec, only
829 in IP175C, but it can't hurt.) */
833 if (REG_SUPP(state
->regs
->MODE_REG
)) {
834 err
= setPhy(state
, state
->regs
->MODE_REG
, state
->regs
->RESET_VAL
);
837 err
= getPhy(state
, state
->regs
->MODE_REG
);
840 /* reset switch ports */
841 for (i
= 0; i
< 5; i
++) {
842 err
= state
->mii_bus
->write(state
->mii_bus
, i
,
843 MII_BMCR
, BMCR_RESET
);
851 /*! get the current register number */
852 static int ip175c_get_tagged(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
854 struct ip175c_state
*state
= dev
->priv
;
857 err
= get_state(state
);
861 if (state
->add_tag
& (1<<val
->port_vlan
)) {
862 if (state
->remove_tag
& (1<<val
->port_vlan
))
863 val
->value
.i
= 3; // shouldn't ever happen.
867 if (state
->remove_tag
& (1<<val
->port_vlan
))
875 /*! set a new register address for low level access to registers */
876 static int ip175c_set_tagged(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
878 struct ip175c_state
*state
= dev
->priv
;
881 err
= get_state(state
);
885 state
->add_tag
&= ~(1<<val
->port_vlan
);
886 state
->remove_tag
&= ~(1<<val
->port_vlan
);
888 if (val
->value
.i
== 0)
889 state
->remove_tag
|= (1<<val
->port_vlan
);
890 if (val
->value
.i
== 1)
891 state
->add_tag
|= (1<<val
->port_vlan
);
893 SET_PORT_BITS(state
, state
->add_tag
,
894 state
->regs
->ADD_TAG_REG
, state
->regs
->ADD_TAG_BIT
);
895 SET_PORT_BITS(state
, state
->remove_tag
,
896 state
->regs
->REMOVE_TAG_REG
, state
->regs
->REMOVE_TAG_BIT
);
902 /* low level /proc procedures */
904 /*! get the current phy address */
905 static int ip175c_get_phy(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
907 struct ip175c_state
*state
= dev
->priv
;
909 val
->value
.i
= state
->proc_mii
.p
;
913 /*! set a new phy address for low level access to registers */
914 static int ip175c_set_phy(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
916 struct ip175c_state
*state
= dev
->priv
;
917 int new_reg
= val
->value
.i
;
919 if (new_reg
< 0 || new_reg
> 31)
920 state
->proc_mii
.p
= (u16
)-1;
922 state
->proc_mii
.p
= (u16
)new_reg
;
926 /*! get the current register number */
927 static int ip175c_get_reg(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
929 struct ip175c_state
*state
= dev
->priv
;
931 val
->value
.i
= state
->proc_mii
.m
;
935 /*! set a new register address for low level access to registers */
936 static int ip175c_set_reg(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
938 struct ip175c_state
*state
= dev
->priv
;
939 int new_reg
= val
->value
.i
;
941 if (new_reg
< 0 || new_reg
> 31)
942 state
->proc_mii
.m
= (u16
)-1;
944 state
->proc_mii
.m
= (u16
)new_reg
;
948 /*! get the register content of state->proc_mii */
949 static int ip175c_get_val(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
951 struct ip175c_state
*state
= dev
->priv
;
952 int retval
= -EINVAL
;
953 if (REG_SUPP(state
->proc_mii
))
954 retval
= getPhy(state
, state
->proc_mii
);
957 state
->proc_errno
= retval
;
960 state
->proc_errno
= 0;
961 val
->value
.i
= retval
;
966 /*! write a value to the register defined by phy/reg above */
967 static int ip175c_set_val(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
969 struct ip175c_state
*state
= dev
->priv
;
972 myval
= val
->value
.i
;
973 if (myval
<= 0xffff && myval
>= 0 && REG_SUPP(state
->proc_mii
)) {
974 state
->proc_errno
= setPhy(state
, state
->proc_mii
, (u16
)myval
);
976 state
->proc_errno
= -EINVAL
;
978 return state
->proc_errno
;
981 /*! get the errno of the last read/write of "val" */
982 static int ip175c_get_errno(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
984 struct ip175c_state
*state
= dev
->priv
;
985 val
->value
.i
= state
->proc_errno
;
989 static int ip175c_read_name(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
991 struct ip175c_state
*state
= dev
->priv
;
992 val
->value
.s
= state
->regs
->NAME
; // just a const pointer, won't be freed by swconfig.
997 static int ip175c_set_port_speed(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
999 int nr
= val
->port_vlan
;
1000 struct ip175c_state
*state
= dev
->priv
;
1001 struct phy_device
*phy
;
1005 if (val
->value
.i
== 100) {
1008 } else if (val
->value
.i
== 10) {
1016 if (nr
== state
->regs
->CPU_PORT
) {
1017 return -EINVAL
; // can't set speed for cpu port!
1020 if (nr
>= dev
->ports
|| nr
< 0)
1022 phy
= state
->ports
[nr
].phy
;
1026 ctrl
= phy_read(phy
, 0);
1032 ctrl
|= (autoneg
<<12);
1033 ctrl
|= (speed
<<13);
1035 return phy_write(phy
, 0, ctrl
);
1038 static int ip175c_get_port_speed(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
1040 int nr
= val
->port_vlan
;
1041 struct ip175c_state
*state
= dev
->priv
;
1042 struct phy_device
*phy
;
1045 if (nr
== state
->regs
->CPU_PORT
) {
1050 if (nr
>= dev
->ports
|| nr
< 0)
1052 phy
= state
->ports
[nr
].phy
;
1056 status
= phy_read(phy
, 1);
1057 speed
= phy_read(phy
, 18);
1058 if (status
< 0 || speed
< 0)
1062 val
->value
.i
= ((speed
& (1<<11)) ? 100 : 10);
1070 static int ip175c_get_port_status(struct switch_dev
*dev
, const struct switch_attr
*attr
, struct switch_val
*val
)
1072 int nr
= val
->port_vlan
;
1073 struct ip175c_state
*state
= dev
->priv
;
1074 struct phy_device
*phy
;
1075 int ctrl
, speed
, status
;
1077 char *buf
= state
->buf
; // fixed-length at 80.
1079 if (nr
== state
->regs
->CPU_PORT
) {
1080 sprintf(buf
, "up, 100 Mbps, cpu port");
1085 if (nr
>= dev
->ports
|| nr
< 0)
1087 phy
= state
->ports
[nr
].phy
;
1091 ctrl
= phy_read(phy
, 0);
1092 status
= phy_read(phy
, 1);
1093 speed
= phy_read(phy
, 18);
1094 if (ctrl
< 0 || status
< 0 || speed
< 0)
1098 len
= sprintf(buf
, "up, %d Mbps, %s duplex",
1099 ((speed
& (1<<11)) ? 100 : 10),
1100 ((speed
& (1<<10)) ? "full" : "half"));
1102 len
= sprintf(buf
, "down");
1104 if (ctrl
& (1<<12)) {
1105 len
+= sprintf(buf
+len
, ", auto-negotiate");
1106 if (!(status
& (1<<5)))
1107 len
+= sprintf(buf
+len
, " (in progress)");
1109 len
+= sprintf(buf
+len
, ", fixed speed (%d)",
1110 ((ctrl
& (1<<13)) ? 100 : 10));
1128 IP175C_REGISTER_PHY
,
1129 IP175C_REGISTER_MII
,
1130 IP175C_REGISTER_VALUE
,
1131 IP175C_REGISTER_ERRNO
,
1134 static const struct switch_attr ip175c_global
[] = {
1137 .type
= SWITCH_TYPE_NOVAL
,
1140 .description
= "Resets the switch but does not clear vlan configuration",
1141 .set
= ip175c_reset
,
1143 [IP175C_ENABLE_VLAN
] = {
1144 .id
= IP175C_ENABLE_VLAN
,
1145 .type
= SWITCH_TYPE_INT
,
1146 .name
= "enable_vlan",
1147 .description
= "Flag to enable or disable VLANs and tagging",
1148 .get
= ip175c_get_enable_vlan
,
1149 .set
= ip175c_set_enable_vlan
,
1151 [IP175C_GET_NAME
] = {
1152 .id
= IP175C_GET_NAME
,
1153 .type
= SWITCH_TYPE_STRING
,
1154 .description
= "Returns the type of IC+ chip.",
1156 .get
= ip175c_read_name
,
1159 /* jal: added for low level debugging etc. */
1160 [IP175C_REGISTER_PHY
] = {
1161 .id
= IP175C_REGISTER_PHY
,
1162 .type
= SWITCH_TYPE_INT
,
1163 .description
= "Direct register access: set phy (0-4, or 29,30,31)",
1165 .get
= ip175c_get_phy
,
1166 .set
= ip175c_set_phy
,
1168 [IP175C_REGISTER_MII
] = {
1169 .id
= IP175C_REGISTER_MII
,
1170 .type
= SWITCH_TYPE_INT
,
1171 .description
= "Direct register access: set mii number (0-31)",
1173 .get
= ip175c_get_reg
,
1174 .set
= ip175c_set_reg
,
1176 [IP175C_REGISTER_VALUE
] = {
1177 .id
= IP175C_REGISTER_VALUE
,
1178 .type
= SWITCH_TYPE_INT
,
1179 .description
= "Direct register access: read/write to register (0-65535)",
1181 .get
= ip175c_get_val
,
1182 .set
= ip175c_set_val
,
1184 [IP175C_REGISTER_ERRNO
] = {
1185 .id
= IP175C_REGISTER_ERRNO
,
1186 .type
= SWITCH_TYPE_INT
,
1187 .description
= "Direct register access: returns last read or write error",
1189 .get
= ip175c_get_errno
,
1195 static const struct switch_attr ip175c_vlan
[] = {
1198 static const struct switch_attr ip175c_port
[] = {
1199 [IP175C_PORT_STATUS
] = {
1200 .id
= IP175C_PORT_STATUS
,
1201 .type
= SWITCH_TYPE_STRING
,
1202 .description
= "Returns Detailed port status",
1204 .get
= ip175c_get_port_status
,
1207 [IP175C_PORT_LINK
] = {
1208 .id
= IP175C_PORT_LINK
,
1209 .type
= SWITCH_TYPE_INT
,
1210 .description
= "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1212 .get
= ip175c_get_port_speed
,
1213 .set
= ip175c_set_port_speed
,
1215 [IP175C_PORT_TAGGED
] = {
1216 .id
= IP175C_PORT_LINK
,
1217 .type
= SWITCH_TYPE_INT
,
1218 .description
= "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1220 .get
= ip175c_get_tagged
,
1221 .set
= ip175c_set_tagged
,
1225 static int ip175c_probe(struct phy_device
*pdev
)
1227 struct ip175c_state
*state
;
1228 struct switch_dev
*dev
;
1231 /* we only attach to PHY 0, but use all available PHYs */
1232 if (pdev
->addr
!= 0)
1235 state
= kzalloc(sizeof(*state
), GFP_KERNEL
);
1240 dev
->attr_global
.attr
= ip175c_global
;
1241 dev
->attr_global
.n_attr
= ARRAY_SIZE(ip175c_global
);
1242 dev
->attr_port
.attr
= ip175c_port
;
1243 dev
->attr_port
.n_attr
= ARRAY_SIZE(ip175c_port
);
1244 dev
->attr_vlan
.attr
= ip175c_vlan
;
1245 dev
->attr_vlan
.n_attr
= ARRAY_SIZE(ip175c_vlan
);
1247 dev
->get_vlan_ports
= ip175c_get_ports
;
1248 dev
->set_vlan_ports
= ip175c_set_ports
;
1249 dev
->apply_config
= ip175c_apply
;
1253 state
->mii_bus
= pdev
->bus
;
1255 err
= get_model(state
);
1259 dev
->vlans
= MAX_VLANS
;
1260 dev
->cpu_port
= state
->regs
->CPU_PORT
;
1261 dev
->ports
= state
->regs
->NUM_PORTS
;
1262 dev
->name
= state
->regs
->NAME
;
1271 static int ip175c_config_init(struct phy_device
*pdev
)
1273 struct ip175c_state
*state
= pdev
->priv
;
1274 struct net_device
*dev
= pdev
->attached_dev
;
1277 pdev
->irq
= PHY_IGNORE_INTERRUPT
;
1278 err
= register_switch(&state
->dev
, dev
);
1282 ip175c_reset(&state
->dev
, NULL
, NULL
);
1284 state
->registered
= true;
1285 netif_carrier_on(pdev
->attached_dev
);
1290 static void ip175c_remove(struct phy_device
*pdev
)
1292 struct ip175c_state
*state
= pdev
->priv
;
1294 if (state
->registered
)
1295 unregister_switch(&state
->dev
);
1299 static int ip175c_config_aneg(struct phy_device
*pdev
)
1304 static int ip175c_read_status(struct phy_device
*pdev
)
1306 pdev
->speed
= SPEED_100
;
1307 pdev
->duplex
= DUPLEX_FULL
;
1308 pdev
->pause
= pdev
->asym_pause
= 0;
1312 static struct phy_driver ip175c_driver
= {
1313 .name
= "IC+ IP175C",
1314 .phy_id
= 0x02430d80,
1315 .phy_id_mask
= 0x0ffffff0,
1316 .features
= PHY_BASIC_FEATURES
,
1317 .probe
= ip175c_probe
,
1318 .remove
= ip175c_remove
,
1319 .config_init
= ip175c_config_init
,
1320 .config_aneg
= ip175c_config_aneg
,
1321 .read_status
= ip175c_read_status
,
1322 .driver
= { .owner
= THIS_MODULE
},
1326 int __init
ip175c_init(void)
1328 return phy_driver_register(&ip175c_driver
);
1331 void __exit
ip175c_exit(void)
1333 phy_driver_unregister(&ip175c_driver
);
1336 MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1337 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1338 MODULE_LICENSE("GPL");
1340 module_init(ip175c_init
);
1341 module_exit(ip175c_exit
);