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ip17xx: New chip detection
[openwrt/svn-archive/archive.git] / target / linux / generic-2.6 / files / drivers / net / phy / ip175c.c
1 /*
2 * swconfig-ip175c.c: Swconfig configuration for IC+ IP175C switch
3 *
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>
7 *
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.
12 *
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.
17 */
18
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>
28 #include <linux/device.h>
29
30 #define MAX_VLANS 16
31 #define MAX_PORTS 9
32 #undef DUMP_MII_IO
33
34 typedef struct ip175c_reg {
35 u16 p; // phy
36 u16 m; // mii
37 } reg;
38 typedef char bitnum;
39
40 #define NOTSUPPORTED {-1,-1}
41
42 #define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
43
44 struct ip175c_state;
45
46 /*********** CONSTANTS ***********/
47 struct register_mappings {
48 char *NAME;
49 u16 MODEL_NO; // Compare to bits 4-9 of MII register 0,3.
50 bitnum NUM_PORTS;
51 bitnum CPU_PORT;
52
53 /* The default VLAN for each port.
54 Default: 0x0001 for Ports 0,1,2,3
55 0x0002 for Ports 4,5 */
56 reg VLAN_DEFAULT_TAG_REG[MAX_PORTS];
57
58 /* These ports are tagged.
59 Default: 0x00 */
60 reg ADD_TAG_REG;
61 reg REMOVE_TAG_REG;
62 bitnum ADD_TAG_BIT[MAX_PORTS];
63 /* These ports are untagged.
64 Default: 0x00 (i.e. do not alter any VLAN tags...)
65 Maybe set to 0 if user disables VLANs. */
66 bitnum REMOVE_TAG_BIT[MAX_PORTS];
67
68 /* Port M and Port N are on the same VLAN.
69 Default: All ports on all VLANs. */
70 // Use register {29, 19+N/2}
71 reg VLAN_LOOKUP_REG;
72 // Port 5 uses register {30, 18} but same as odd bits.
73 reg VLAN_LOOKUP_REG_5; // in a different register on IP175C.
74 bitnum VLAN_LOOKUP_EVEN_BIT[MAX_PORTS];
75 bitnum VLAN_LOOKUP_ODD_BIT[MAX_PORTS];
76
77 /* This VLAN corresponds to which ports.
78 Default: 0x2f,0x30,0x3f,0x3f... */
79 reg TAG_VLAN_MASK_REG;
80 bitnum TAG_VLAN_MASK_EVEN_BIT[MAX_PORTS];
81 bitnum TAG_VLAN_MASK_ODD_BIT[MAX_PORTS];
82
83 int RESET_VAL;
84 reg RESET_REG;
85
86 reg MODE_REG;
87 int MODE_VAL;
88
89 /* General flags */
90 reg ROUTER_CONTROL_REG;
91 reg VLAN_CONTROL_REG;
92 bitnum TAG_VLAN_BIT;
93 bitnum ROUTER_EN_BIT;
94 bitnum NUMLAN_GROUPS_MAX;
95 bitnum NUMLAN_GROUPS_BIT;
96
97 reg MII_REGISTER_EN;
98 bitnum MII_REGISTER_EN_BIT;
99
100 // set to 1 for 178C, 0 for 175C.
101 bitnum SIMPLE_VLAN_REGISTERS; // 175C has two vlans per register but 178C has only one.
102
103 // Pointers to functions which manipulate hardware state
104 int (*get_flags)(struct ip175c_state *state);
105 int (*get_state)(struct ip175c_state *state);
106 int (*update_state)(struct ip175c_state *state);
107 int (*set_vlan_mode)(struct ip175c_state *state);
108 int (*reset)(struct ip175c_state *state);
109 };
110
111 static int ip175c_get_flags(struct ip175c_state *state);
112 static int ip175c_get_state(struct ip175c_state *state);
113 static int ip175c_update_state(struct ip175c_state *state);
114 static int ip175c_set_vlan_mode(struct ip175c_state *state);
115 static int ip175c_do_reset(struct ip175c_state *state);
116
117 static const struct register_mappings IP178C = {
118 .NAME = "IP178C",
119 .MODEL_NO = 0x18,
120 .VLAN_DEFAULT_TAG_REG = {
121 {30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
122 {30,9},{30,10},{30,11},
123 },
124
125 .ADD_TAG_REG = {30,12},
126 .ADD_TAG_BIT = {0,1,2,3,4,5,6,7,8},
127 .REMOVE_TAG_REG = {30,13},
128 .REMOVE_TAG_BIT = {4,5,6,7,8,9,10,11,12},
129
130 .SIMPLE_VLAN_REGISTERS = 1,
131
132 .VLAN_LOOKUP_REG = {31,0},// +N
133 .VLAN_LOOKUP_REG_5 = NOTSUPPORTED, // not used with SIMPLE_VLAN_REGISTERS
134 .VLAN_LOOKUP_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
135 .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,5,6,7,8},
136
137 .TAG_VLAN_MASK_REG = {30,14}, // +N
138 .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
139 .TAG_VLAN_MASK_ODD_BIT = {0,1,2,3,4,5,6,7,8},
140
141 .RESET_VAL = 0x55AA,
142 .RESET_REG = {30,0},
143 .MODE_VAL = 0,
144 .MODE_REG = NOTSUPPORTED,
145
146 .ROUTER_CONTROL_REG = {30,30},
147 .ROUTER_EN_BIT = 11,
148 .NUMLAN_GROUPS_MAX = 8,
149 .NUMLAN_GROUPS_BIT = 8, // {0-2}
150
151 .VLAN_CONTROL_REG = {30,13},
152 .TAG_VLAN_BIT = 3,
153
154 .CPU_PORT = 8,
155 .NUM_PORTS = 9,
156
157 .MII_REGISTER_EN = NOTSUPPORTED,
158
159 .get_flags = ip175c_get_flags,
160 .get_state = ip175c_get_state,
161 .update_state = ip175c_update_state,
162 .set_vlan_mode = ip175c_set_vlan_mode,
163 .reset = ip175c_do_reset,
164 };
165
166 static const struct register_mappings IP175C = {
167 .NAME = "IP175C",
168 .MODEL_NO = 0x18,
169 .VLAN_DEFAULT_TAG_REG = {
170 {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
171 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
172 },
173
174 .ADD_TAG_REG = {29,23},
175 .REMOVE_TAG_REG = {29,23},
176 .ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
177 .REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
178
179 .SIMPLE_VLAN_REGISTERS = 0,
180
181 .VLAN_LOOKUP_REG = {29,19},// +N/2
182 .VLAN_LOOKUP_REG_5 = {30,18},
183 .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
184 .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
185
186 .TAG_VLAN_MASK_REG = {30,1}, // +N/2
187 .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
188 .TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
189
190 .RESET_VAL = 0x175C,
191 .RESET_REG = {30,0},
192 .MODE_VAL = 0x175C,
193 .MODE_REG = {29,31},
194
195 .ROUTER_CONTROL_REG = {30,9},
196 .ROUTER_EN_BIT = 3,
197 .NUMLAN_GROUPS_MAX = 8,
198 .NUMLAN_GROUPS_BIT = 0, // {0-2}
199
200 .VLAN_CONTROL_REG = {30,9},
201 .TAG_VLAN_BIT = 7,
202
203 .NUM_PORTS = 6,
204 .CPU_PORT = 5,
205
206 .MII_REGISTER_EN = NOTSUPPORTED,
207
208 .get_flags = ip175c_get_flags,
209 .get_state = ip175c_get_state,
210 .update_state = ip175c_update_state,
211 .set_vlan_mode = ip175c_set_vlan_mode,
212 .reset = ip175c_do_reset,
213 };
214
215 static const struct register_mappings IP175A = {
216 .NAME = "IP175A",
217 .MODEL_NO = 0x05,
218 .VLAN_DEFAULT_TAG_REG = {
219 {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
220 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
221 },
222
223 .ADD_TAG_REG = {0,23},
224 .REMOVE_TAG_REG = {0,23},
225 .ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
226 .REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
227
228 .SIMPLE_VLAN_REGISTERS = 0,
229
230 // Only programmable via EEPROM
231 .VLAN_LOOKUP_REG = NOTSUPPORTED,// +N/2
232 .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
233 .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
234 .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
235
236 .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
237 .TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
238 .TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
239
240 .RESET_VAL = -1,
241 .RESET_REG = NOTSUPPORTED,
242 .MODE_VAL = 0,
243 .MODE_REG = NOTSUPPORTED,
244
245 .ROUTER_CONTROL_REG = NOTSUPPORTED,
246 .VLAN_CONTROL_REG = NOTSUPPORTED,
247 .TAG_VLAN_BIT = -1,
248 .ROUTER_EN_BIT = -1,
249 .NUMLAN_GROUPS_MAX = -1,
250 .NUMLAN_GROUPS_BIT = -1, // {0-2}
251
252 .NUM_PORTS = 5,
253 .CPU_PORT = 4,
254
255 .MII_REGISTER_EN = {0, 18},
256 .MII_REGISTER_EN_BIT = 7,
257
258 .get_flags = ip175c_get_flags,
259 .get_state = ip175c_get_state,
260 .update_state = ip175c_update_state,
261 .set_vlan_mode = ip175c_set_vlan_mode,
262 .reset = ip175c_do_reset,
263 };
264
265
266 struct ip175c_state {
267 struct switch_dev dev;
268 struct mii_bus *mii_bus;
269 bool registered;
270
271 int router_mode; // ROUTER_EN
272 int vlan_enabled; // TAG_VLAN_EN
273 struct port_state {
274 u16 pvid;
275 unsigned int shareports;
276 } ports[MAX_PORTS];
277 unsigned int add_tag;
278 unsigned int remove_tag;
279 int num_vlans;
280 struct vlan_state {
281 unsigned int ports;
282 unsigned int tag; // VLAN tag (IP175D only)
283 } vlans[MAX_VLANS];
284 const struct register_mappings *regs;
285 reg proc_mii; // phy/reg for the low level register access via swconfig
286
287 char buf[80];
288 };
289
290
291 static int ip_phy_read(struct ip175c_state *state, int port, int reg)
292 {
293 int val = mdiobus_read(state->mii_bus, port, reg);
294 if (val < 0)
295 pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
296 #ifdef DUMP_MII_IO
297 else
298 pr_debug("IP175C: Read MII(%d,%d) -> %04x\n", port, reg, val);
299 #endif
300 return val;
301 }
302
303 static int ip_phy_write(struct ip175c_state *state, int port, int reg, u16 val)
304 {
305 int err;
306
307 #ifdef DUMP_MII_IO
308 pr_debug("IP175C: Write MII(%d,%d) <- %04x\n", port, reg, val);
309 #endif
310 err = mdiobus_write(state->mii_bus, port, reg, val);
311 if (err < 0)
312 pr_warning("IP175C: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
313 return err;
314 }
315
316 static int ip_phy_write_masked(struct ip175c_state *state, int port, int reg, unsigned int mask, unsigned int data)
317 {
318 int val = ip_phy_read(state, port, reg);
319 if (val < 0)
320 return 0;
321 return ip_phy_write(state, port, reg, (val & ~mask) | data);
322 }
323
324 static int getPhy(struct ip175c_state *state, reg mii)
325 {
326 if (!REG_SUPP(mii))
327 return -EFAULT;
328 return ip_phy_read(state, mii.p, mii.m);
329 }
330
331 static int setPhy(struct ip175c_state *state, reg mii, u16 value)
332 {
333 int err;
334
335 if (!REG_SUPP(mii))
336 return -EFAULT;
337 err = ip_phy_write(state, mii.p, mii.m, value);
338 if (err < 0)
339 return err;
340 getPhy(state, mii);
341 return 0;
342 }
343
344
345 /**
346 * These two macros are to simplify the mapping of logical bits to the bits in hardware.
347 * NOTE: these macros will return if there is an error!
348 */
349
350 #define GET_PORT_BITS(state, bits, addr, bit_lookup) \
351 do { \
352 int i, val = getPhy((state), (addr)); \
353 if (val < 0) \
354 return val; \
355 (bits) = 0; \
356 for (i = 0; i < MAX_PORTS; i++) { \
357 if ((bit_lookup)[i] == -1) continue; \
358 if (val & (1<<(bit_lookup)[i])) \
359 (bits) |= (1<<i); \
360 } \
361 } while (0)
362
363 #define SET_PORT_BITS(state, bits, addr, bit_lookup) \
364 do { \
365 int i, val = getPhy((state), (addr)); \
366 if (val < 0) \
367 return val; \
368 for (i = 0; i < MAX_PORTS; i++) { \
369 unsigned int newmask = ((bits)&(1<<i)); \
370 if ((bit_lookup)[i] == -1) continue; \
371 val &= ~(1<<(bit_lookup)[i]); \
372 val |= ((newmask>>i)<<(bit_lookup)[i]); \
373 } \
374 val = setPhy((state), (addr), val); \
375 if (val < 0) \
376 return val; \
377 } while (0)
378
379
380 static int get_model(struct ip175c_state *state)
381 {
382 int id1, id2;
383 int oui_id, model_no, rev_no, chip_no;
384
385 id1 = ip_phy_read(state, 0, 2);
386 id2 = ip_phy_read(state, 0, 3);
387 oui_id = (id1 << 6) | ((id2 >> 10) & 0x3f);
388 model_no = (id2 >> 4) & 0x3f;
389 rev_no = id2 & 0xf;
390 pr_debug("IP175C: Identified oui=%06x model=%02x rev=%X\n", oui_id, model_no, rev_no);
391
392 if (oui_id != 0x0090c3) // No other oui_id should have reached us anyway
393 return -ENODEV;
394
395 if (model_no == IP175A.MODEL_NO) {
396 state->regs = &IP175A;
397 } else if (model_no == IP175C.MODEL_NO) {
398 /*
399 * Several models share the same model_no:
400 * 178C has more PHYs, so we try whether the device responds to a read from PHY5
401 * 175D has a new chip ID register
402 * 175C has neither
403 */
404 if (ip_phy_read(state, 5, 2) == 0x0243) {
405 state->regs = &IP178C;
406 } else {
407 chip_no = ip_phy_read(state, 20, 0);
408 pr_debug("IP175C: Chip ID register reads %04x\n", chip_no);
409 if (chip_no == 0x175d) {
410 state->regs = &IP175C;
411 } else {
412 state->regs = &IP175C;
413 }
414 }
415 } else {
416 pr_warning("IP175C: Found an unknown IC+ switch with model number %02x, revision %X.\n", model_no, rev_no);
417 return -EPERM;
418 }
419 return 0;
420 }
421
422 /** Get only the vlan and router flags on the router **/
423 static int ip175c_get_flags(struct ip175c_state *state)
424 {
425 int val;
426
427 state->router_mode = 0;
428 state->vlan_enabled = -1; // hack
429 state->num_vlans = 0;
430
431 if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
432 return 0; // not an error if it doesn't support enable vlan.
433 }
434
435 val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
436 if (val < 0) {
437 return val;
438 }
439 if (state->regs->ROUTER_EN_BIT >= 0)
440 state->router_mode = ((val>>state->regs->ROUTER_EN_BIT) & 1);
441
442 if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
443 state->num_vlans = (val >> state->regs->NUMLAN_GROUPS_BIT);
444 state->num_vlans &= (state->regs->NUMLAN_GROUPS_MAX-1);
445 state->num_vlans+=1; // does not include WAN.
446 }
447
448 val = getPhy(state, state->regs->VLAN_CONTROL_REG);
449 if (val < 0) {
450 return 0;
451 }
452 if (state->regs->TAG_VLAN_BIT >= 0)
453 state->vlan_enabled = ((val>>state->regs->TAG_VLAN_BIT) & 1);
454
455 return 0;
456 }
457
458 /** Get all state variables for VLAN mappings and port-based tagging **/
459 static int ip175c_get_state(struct ip175c_state *state)
460 {
461 int i, j;
462 int ret;
463
464 ret = ip175c_get_flags(state);
465 if (ret < 0) {
466 return ret;
467 }
468
469 GET_PORT_BITS(state, state->remove_tag,
470 state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
471 GET_PORT_BITS(state, state->add_tag,
472 state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
473
474 if (state->vlan_enabled == -1) {
475 // not sure how to get this...
476 state->vlan_enabled = (state->remove_tag || state->add_tag);
477 }
478
479 if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
480 for (j=0; j<MAX_PORTS; j++) {
481 state->ports[j].shareports = 0; // initialize them in case.
482 }
483 for (j=0; j<state->regs->NUM_PORTS; j++) {
484 reg addr;
485 const bitnum *bit_lookup = (j%2==0)?
486 state->regs->VLAN_LOOKUP_EVEN_BIT:
487 state->regs->VLAN_LOOKUP_ODD_BIT;
488 addr = state->regs->VLAN_LOOKUP_REG;
489 if (state->regs->SIMPLE_VLAN_REGISTERS) {
490 addr.m += j;
491 } else {
492 switch (j) {
493 case 0:
494 case 1:
495 break;
496 case 2:
497 case 3:
498 addr.m+=1;
499 break;
500 case 4:
501 addr.m+=2;
502 break;
503 case 5:
504 addr = state->regs->VLAN_LOOKUP_REG_5;
505 break;
506 }
507 }
508
509 if (REG_SUPP(addr)) {
510 GET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
511 }
512 }
513 } else {
514 for (j=0; j<MAX_PORTS; j++) {
515 state->ports[j].shareports = 0xff;
516 }
517 }
518
519 for (i=0; i<MAX_PORTS; i++) {
520 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
521 int val = getPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i]);
522 if (val < 0) {
523 return val;
524 }
525 state->ports[i].pvid = val;
526 } else {
527 state->ports[i].pvid = 0;
528 }
529 }
530
531 if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
532 for (j=0; j<MAX_VLANS; j++) {
533 reg addr = state->regs->TAG_VLAN_MASK_REG;
534 const bitnum *bit_lookup = (j%2==0)?
535 state->regs->TAG_VLAN_MASK_EVEN_BIT:
536 state->regs->TAG_VLAN_MASK_ODD_BIT;
537 if (state->regs->SIMPLE_VLAN_REGISTERS) {
538 addr.m += j;
539 } else {
540 addr.m += j/2;
541 }
542 GET_PORT_BITS(state, state->vlans[j].ports, addr, bit_lookup);
543 }
544 } else {
545 for (j=0; j<MAX_VLANS; j++) {
546 state->vlans[j].ports = 0;
547 for (i=0; i<state->regs->NUM_PORTS; i++) {
548 if ((state->ports[i].pvid == j) ||
549 (state->ports[i].pvid == 0)) {
550 state->vlans[j].ports |= (1<<i);
551 }
552 }
553 }
554 }
555
556 return 0;
557 }
558
559 /** Only set vlan and router flags in the switch **/
560 static int ip175c_set_flags(struct ip175c_state *state)
561 {
562 int val;
563
564 if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
565 return 0;
566 }
567
568 val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
569 if (val < 0) {
570 return val;
571 }
572 if (state->regs->ROUTER_EN_BIT >= 0) {
573 if (state->router_mode) {
574 val |= (1<<state->regs->ROUTER_EN_BIT);
575 } else {
576 val &= (~(1<<state->regs->ROUTER_EN_BIT));
577 }
578 }
579 if (state->regs->TAG_VLAN_BIT >= 0) {
580 if (state->vlan_enabled) {
581 val |= (1<<state->regs->TAG_VLAN_BIT);
582 } else {
583 val &= (~(1<<state->regs->TAG_VLAN_BIT));
584 }
585 }
586 if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
587 val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
588 if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
589 val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
590 } else if (state->num_vlans >= 1) {
591 val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
592 }
593 }
594 return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
595 }
596
597 /** Set all VLAN and port state. Usually you should call "correct_vlan_state" first. **/
598 static int ip175c_set_state(struct ip175c_state *state)
599 {
600 int j;
601 int i;
602 SET_PORT_BITS(state, state->add_tag,
603 state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
604 SET_PORT_BITS(state, state->remove_tag,
605 state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
606
607 if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
608 for (j=0; j<state->regs->NUM_PORTS; j++) {
609 reg addr;
610 const bitnum *bit_lookup = (j%2==0)?
611 state->regs->VLAN_LOOKUP_EVEN_BIT:
612 state->regs->VLAN_LOOKUP_ODD_BIT;
613
614 // duplicate code -- sorry
615 addr = state->regs->VLAN_LOOKUP_REG;
616 if (state->regs->SIMPLE_VLAN_REGISTERS) {
617 addr.m += j;
618 } else {
619 switch (j) {
620 case 0:
621 case 1:
622 break;
623 case 2:
624 case 3:
625 addr.m+=1;
626 break;
627 case 4:
628 addr.m+=2;
629 break;
630 case 5:
631 addr = state->regs->VLAN_LOOKUP_REG_5;
632 break;
633 default:
634 addr.m = -1; // shouldn't get here, but...
635 break;
636 }
637 }
638 //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
639 if (REG_SUPP(addr)) {
640 SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
641 }
642 }
643 }
644 if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
645 for (j=0; j<MAX_VLANS; j++) {
646 reg addr = state->regs->TAG_VLAN_MASK_REG;
647 const bitnum *bit_lookup = (j%2==0)?
648 state->regs->TAG_VLAN_MASK_EVEN_BIT:
649 state->regs->TAG_VLAN_MASK_ODD_BIT;
650 unsigned int vlan_mask;
651 if (state->regs->SIMPLE_VLAN_REGISTERS) {
652 addr.m += j;
653 } else {
654 addr.m += j/2;
655 }
656 vlan_mask = state->vlans[j].ports;
657 SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
658 }
659 }
660
661 for (i=0; i<MAX_PORTS; i++) {
662 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
663 int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
664 state->ports[i].pvid);
665 if (err < 0) {
666 return err;
667 }
668 }
669 }
670
671 return ip175c_set_flags(state);
672 }
673
674 /**
675 * Uses only the VLAN port mask and the add tag mask to generate the other fields:
676 * which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
677 */
678 static void ip175c_correct_vlan_state(struct ip175c_state *state)
679 {
680 int i, j;
681 state->num_vlans = 0;
682 for (i=0; i<MAX_VLANS; i++) {
683 if (state->vlans[i].ports != 0) {
684 state->num_vlans = i+1; // Hack -- we need to store the "set" vlans somewhere...
685 }
686 }
687
688 for (i=0; i<state->regs->NUM_PORTS; i++) {
689 unsigned int portmask = (1<<i);
690 if (!state->vlan_enabled) {
691 // Share with everybody!
692 state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
693 continue;
694 }
695 state->ports[i].shareports = portmask;
696 for (j=0; j<MAX_VLANS; j++) {
697 if (state->vlans[j].ports & portmask)
698 state->ports[i].shareports |= state->vlans[j].ports;
699 }
700 }
701 }
702
703 static int ip175c_update_state(struct ip175c_state *state)
704 {
705 ip175c_correct_vlan_state(state);
706 return ip175c_set_state(state);
707 }
708
709 static int ip175c_set_vlan_mode(struct ip175c_state *state)
710 {
711 return ip175c_update_state(state);
712 }
713
714 static int ip175c_do_reset(struct ip175c_state *state)
715 {
716 int err;
717
718 if (REG_SUPP(state->regs->MODE_REG)) {
719 err = setPhy(state, state->regs->MODE_REG, state->regs->MODE_VAL);
720 if (err < 0)
721 return err;
722 err = getPhy(state, state->regs->MODE_REG);
723 if (err < 0)
724 return err;
725 }
726
727 return 0;
728 }
729
730 static int ip175c_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
731 {
732 struct ip175c_state *state = dev->priv;
733 int err;
734
735 err = state->regs->get_state(state); // May be set in get_state.
736 if (err < 0)
737 return err;
738 val->value.i = state->vlan_enabled;
739 return 0;
740 }
741
742 static void ip175c_reset_vlan_config(struct ip175c_state *state)
743 {
744 int i;
745
746 state->remove_tag = (state->vlan_enabled ? ((1<<state->regs->NUM_PORTS)-1) : 0x0000);
747 state->add_tag = 0x0000;
748 for (i = 0; i < MAX_VLANS; i++) {
749 state->vlans[i].ports = 0x0000;
750 state->vlans[i].tag = (i ? i : 16);
751 }
752 for (i = 0; i < MAX_PORTS; i++)
753 state->ports[i].pvid = 0;
754 }
755
756 static int ip175c_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
757 {
758 struct ip175c_state *state = dev->priv;
759 int err;
760 int enable;
761
762 err = state->regs->get_state(state);
763 if (err < 0)
764 return err;
765 enable = val->value.i;
766
767 if (state->vlan_enabled == enable) {
768 // Do not change any state.
769 return 0;
770 }
771 state->vlan_enabled = enable;
772
773 // Otherwise, if we are switching state, set fields to a known default.
774 ip175c_reset_vlan_config(state);
775
776 return state->regs->set_vlan_mode(state);
777 }
778
779 static int ip175c_get_ports(struct switch_dev *dev, struct switch_val *val)
780 {
781 struct ip175c_state *state = dev->priv;
782 int err;
783 int b;
784 int ind;
785 unsigned int ports;
786
787 if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
788 return -EINVAL;
789
790 err = state->regs->get_state(state);
791 if (err<0)
792 return err;
793
794 ports = state->vlans[val->port_vlan].ports;
795 b = 0;
796 ind = 0;
797 while (b < MAX_PORTS) {
798 if (ports&1) {
799 int istagged = ((state->add_tag >> b) & 1);
800 val->value.ports[ind].id = b;
801 val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
802 ind++;
803 }
804 b++;
805 ports >>= 1;
806 }
807 val->len = ind;
808
809 return 0;
810 }
811
812 static int ip175c_set_ports(struct switch_dev *dev, struct switch_val *val)
813 {
814 struct ip175c_state *state = dev->priv;
815 int i;
816 int err;
817
818 if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
819 return -EINVAL;
820
821 err = state->regs->get_state(state);
822 if (err < 0)
823 return err;
824
825 state->vlans[val->port_vlan].ports = 0;
826 for (i = 0; i < val->len; i++) {
827 unsigned int bitmask = (1<<val->value.ports[i].id);
828 state->vlans[val->port_vlan].ports |= bitmask;
829 if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
830 state->add_tag |= bitmask;
831 state->remove_tag &= (~bitmask);
832 } else {
833 state->add_tag &= (~bitmask);
834 state->remove_tag |= bitmask;
835 }
836 }
837
838 return state->regs->update_state(state);
839 }
840
841 static int ip175c_apply(struct switch_dev *dev)
842 {
843 struct ip175c_state *state = dev->priv;
844 int err;
845
846 err = state->regs->get_flags(state);
847 if (err < 0)
848 return err;
849
850 if (REG_SUPP(state->regs->MII_REGISTER_EN)) {
851 int val = getPhy(state, state->regs->MII_REGISTER_EN);
852 if (val < 0) {
853 return val;
854 }
855 val |= (1<<state->regs->MII_REGISTER_EN_BIT);
856 return setPhy(state, state->regs->MII_REGISTER_EN, val);
857 }
858 return 0;
859 }
860
861 static int ip175c_reset(struct switch_dev *dev)
862 {
863 struct ip175c_state *state = dev->priv;
864 int i, err;
865
866 err = state->regs->get_flags(state);
867 if (err < 0)
868 return err;
869
870 if (REG_SUPP(state->regs->RESET_REG)) {
871 err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
872 if (err < 0)
873 return err;
874 err = getPhy(state, state->regs->RESET_REG);
875
876 /*
877 * Data sheet specifies reset period to be 2 msec.
878 * (I don't see any mention of the 2ms delay in the IP178C spec, only
879 * in IP175C, but it can't hurt.)
880 */
881 mdelay(2);
882 }
883
884 /* reset switch ports */
885 for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
886 err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
887 if (err < 0)
888 return err;
889 }
890
891 ip175c_reset_vlan_config(state);
892
893 return state->regs->reset(state);
894 }
895
896 static int ip175c_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
897 {
898 struct ip175c_state *state = dev->priv;
899 int err;
900
901 err = state->regs->get_state(state);
902 if (err < 0)
903 return err;
904
905 if (state->add_tag & (1<<val->port_vlan)) {
906 if (state->remove_tag & (1<<val->port_vlan))
907 val->value.i = 3; // shouldn't ever happen.
908 else
909 val->value.i = 1;
910 } else {
911 if (state->remove_tag & (1<<val->port_vlan))
912 val->value.i = 0;
913 else
914 val->value.i = 2;
915 }
916 return 0;
917 }
918
919 static int ip175c_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
920 {
921 struct ip175c_state *state = dev->priv;
922 int err;
923
924 err = state->regs->get_state(state);
925 if (err < 0)
926 return err;
927
928 state->add_tag &= ~(1<<val->port_vlan);
929 state->remove_tag &= ~(1<<val->port_vlan);
930
931 if (val->value.i == 0)
932 state->remove_tag |= (1<<val->port_vlan);
933 if (val->value.i == 1)
934 state->add_tag |= (1<<val->port_vlan);
935
936 return state->regs->update_state(state);
937 }
938
939 /** Get the current phy address */
940 static int ip175c_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
941 {
942 struct ip175c_state *state = dev->priv;
943
944 val->value.i = state->proc_mii.p;
945 return 0;
946 }
947
948 /** Set a new phy address for low level access to registers */
949 static int ip175c_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
950 {
951 struct ip175c_state *state = dev->priv;
952 int new_reg = val->value.i;
953
954 if (new_reg < 0 || new_reg > 31)
955 state->proc_mii.p = (u16)-1;
956 else
957 state->proc_mii.p = (u16)new_reg;
958 return 0;
959 }
960
961 /** Get the current register number */
962 static int ip175c_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
963 {
964 struct ip175c_state *state = dev->priv;
965
966 val->value.i = state->proc_mii.m;
967 return 0;
968 }
969
970 /** Set a new register address for low level access to registers */
971 static int ip175c_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
972 {
973 struct ip175c_state *state = dev->priv;
974 int new_reg = val->value.i;
975
976 if (new_reg < 0 || new_reg > 31)
977 state->proc_mii.m = (u16)-1;
978 else
979 state->proc_mii.m = (u16)new_reg;
980 return 0;
981 }
982
983 /** Get the register content of state->proc_mii */
984 static int ip175c_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
985 {
986 struct ip175c_state *state = dev->priv;
987 int retval = -EINVAL;
988 if (REG_SUPP(state->proc_mii))
989 retval = getPhy(state, state->proc_mii);
990
991 if (retval < 0) {
992 return retval;
993 } else {
994 val->value.i = retval;
995 return 0;
996 }
997 }
998
999 /** Write a value to the register defined by phy/reg above */
1000 static int ip175c_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1001 {
1002 struct ip175c_state *state = dev->priv;
1003 int myval, err = -EINVAL;
1004
1005 myval = val->value.i;
1006 if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
1007 err = setPhy(state, state->proc_mii, (u16)myval);
1008 }
1009 return err;
1010 }
1011
1012 static int ip175c_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1013 {
1014 struct ip175c_state *state = dev->priv;
1015 val->value.s = state->regs->NAME; // Just a const pointer, won't be freed by swconfig.
1016 return 0;
1017 }
1018
1019 static int ip175c_get_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1020 {
1021 struct ip175c_state *state = dev->priv;
1022 int vlan = val->port_vlan;
1023
1024 if (vlan < 0 || vlan >= MAX_VLANS)
1025 return -EINVAL;
1026
1027 val->value.i = state->vlans[vlan].tag;
1028 return 0;
1029 }
1030
1031 static int ip175c_set_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1032 {
1033 struct ip175c_state *state = dev->priv;
1034 int vlan = val->port_vlan;
1035 int tag = val->value.i;
1036
1037 if (vlan < 0 || vlan >= MAX_VLANS)
1038 return -EINVAL;
1039
1040 if (tag < 0 || tag > 4095)
1041 return -EINVAL;
1042
1043 state->vlans[vlan].tag = tag;
1044 return state->regs->update_state(state);
1045 }
1046
1047 static int ip175c_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1048 {
1049 struct ip175c_state *state = dev->priv;
1050 int nr = val->port_vlan;
1051 int ctrl;
1052 int autoneg;
1053 int speed;
1054 if (val->value.i == 100) {
1055 speed = 1;
1056 autoneg = 0;
1057 } else if (val->value.i == 10) {
1058 speed = 0;
1059 autoneg = 0;
1060 } else {
1061 autoneg = 1;
1062 speed = 1;
1063 }
1064
1065 /* Can't set speed for cpu port */
1066 if (nr == state->regs->CPU_PORT)
1067 return -EINVAL;
1068
1069 if (nr >= dev->ports || nr < 0)
1070 return -EINVAL;
1071
1072 ctrl = ip_phy_read(state, nr, 0);
1073 if (ctrl < 0)
1074 return -EIO;
1075
1076 ctrl &= (~(1<<12));
1077 ctrl &= (~(1<<13));
1078 ctrl |= (autoneg<<12);
1079 ctrl |= (speed<<13);
1080
1081 return ip_phy_write(state, nr, 0, ctrl);
1082 }
1083
1084 static int ip175c_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1085 {
1086 struct ip175c_state *state = dev->priv;
1087 int nr = val->port_vlan;
1088 int speed, status;
1089
1090 if (nr == state->regs->CPU_PORT) {
1091 val->value.i = 100;
1092 return 0;
1093 }
1094
1095 if (nr >= dev->ports || nr < 0)
1096 return -EINVAL;
1097
1098 status = ip_phy_read(state, nr, 1);
1099 speed = ip_phy_read(state, nr, 18);
1100 if (status < 0 || speed < 0)
1101 return -EIO;
1102
1103 if (status & 4)
1104 val->value.i = ((speed & (1<<11)) ? 100 : 10);
1105 else
1106 val->value.i = 0;
1107
1108 return 0;
1109 }
1110
1111 static int ip175c_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1112 {
1113 struct ip175c_state *state = dev->priv;
1114 int ctrl, speed, status;
1115 int nr = val->port_vlan;
1116 int len;
1117 char *buf = state->buf; // fixed-length at 80.
1118
1119 if (nr == state->regs->CPU_PORT) {
1120 sprintf(buf, "up, 100 Mbps, cpu port");
1121 val->value.s = buf;
1122 return 0;
1123 }
1124
1125 if (nr >= dev->ports || nr < 0)
1126 return -EINVAL;
1127
1128 ctrl = ip_phy_read(state, nr, 0);
1129 status = ip_phy_read(state, nr, 1);
1130 speed = ip_phy_read(state, nr, 18);
1131 if (ctrl < 0 || status < 0 || speed < 0)
1132 return -EIO;
1133
1134 if (status & 4)
1135 len = sprintf(buf, "up, %d Mbps, %s duplex",
1136 ((speed & (1<<11)) ? 100 : 10),
1137 ((speed & (1<<10)) ? "full" : "half"));
1138 else
1139 len = sprintf(buf, "down");
1140
1141 if (ctrl & (1<<12)) {
1142 len += sprintf(buf+len, ", auto-negotiate");
1143 if (!(status & (1<<5)))
1144 len += sprintf(buf+len, " (in progress)");
1145 } else {
1146 len += sprintf(buf+len, ", fixed speed (%d)",
1147 ((ctrl & (1<<13)) ? 100 : 10));
1148 }
1149
1150 buf[len] = '\0';
1151 val->value.s = buf;
1152 return 0;
1153 }
1154
1155 static int ip175c_get_pvid(struct switch_dev *dev, int port, int *val)
1156 {
1157 struct ip175c_state *state = dev->priv;
1158
1159 *val = state->ports[port].pvid;
1160 return 0;
1161 }
1162
1163 static int ip175c_set_pvid(struct switch_dev *dev, int port, int val)
1164 {
1165 struct ip175c_state *state = dev->priv;
1166 int err;
1167
1168 if (val < 0 || val >= MAX_VLANS)
1169 return -EINVAL;
1170
1171 err = state->regs->get_state(state);
1172 if (err < 0)
1173 return err;
1174
1175 state->ports[port].pvid = val;
1176
1177 return state->regs->update_state(state);
1178 }
1179
1180
1181 enum Ports {
1182 IP175C_PORT_STATUS,
1183 IP175C_PORT_LINK,
1184 IP175C_PORT_TAGGED,
1185 IP175C_PORT_PVID,
1186 };
1187
1188 enum Globals {
1189 IP175C_ENABLE_VLAN,
1190 IP175C_GET_NAME,
1191 IP175C_REGISTER_PHY,
1192 IP175C_REGISTER_MII,
1193 IP175C_REGISTER_VALUE,
1194 IP175C_REGISTER_ERRNO,
1195 };
1196
1197 enum Vlans {
1198 IP175C_VLAN_TAG,
1199 };
1200
1201 static const struct switch_attr ip175c_global[] = {
1202 [IP175C_ENABLE_VLAN] = {
1203 .id = IP175C_ENABLE_VLAN,
1204 .type = SWITCH_TYPE_INT,
1205 .name = "enable_vlan",
1206 .description = "Flag to enable or disable VLANs and tagging",
1207 .get = ip175c_get_enable_vlan,
1208 .set = ip175c_set_enable_vlan,
1209 },
1210 [IP175C_GET_NAME] = {
1211 .id = IP175C_GET_NAME,
1212 .type = SWITCH_TYPE_STRING,
1213 .description = "Returns the type of IC+ chip.",
1214 .name = "name",
1215 .get = ip175c_read_name,
1216 .set = NULL,
1217 },
1218 /* jal: added for low level debugging etc. */
1219 [IP175C_REGISTER_PHY] = {
1220 .id = IP175C_REGISTER_PHY,
1221 .type = SWITCH_TYPE_INT,
1222 .description = "Direct register access: set PHY (0-4, or 29,30,31)",
1223 .name = "phy",
1224 .get = ip175c_get_phy,
1225 .set = ip175c_set_phy,
1226 },
1227 [IP175C_REGISTER_MII] = {
1228 .id = IP175C_REGISTER_MII,
1229 .type = SWITCH_TYPE_INT,
1230 .description = "Direct register access: set MII register number (0-31)",
1231 .name = "reg",
1232 .get = ip175c_get_reg,
1233 .set = ip175c_set_reg,
1234 },
1235 [IP175C_REGISTER_VALUE] = {
1236 .id = IP175C_REGISTER_VALUE,
1237 .type = SWITCH_TYPE_INT,
1238 .description = "Direct register access: read/write to register (0-65535)",
1239 .name = "val",
1240 .get = ip175c_get_val,
1241 .set = ip175c_set_val,
1242 },
1243 };
1244
1245 static const struct switch_attr ip175c_vlan[] = {
1246 [IP175C_VLAN_TAG] = {
1247 .id = IP175C_VLAN_TAG,
1248 .type = SWITCH_TYPE_INT,
1249 .description = "VLAN tag (0-4095) [IP175D only]",
1250 .name = "tag",
1251 .get = ip175c_get_tag,
1252 .set = ip175c_set_tag,
1253 }
1254 };
1255
1256 static const struct switch_attr ip175c_port[] = {
1257 [IP175C_PORT_STATUS] = {
1258 .id = IP175C_PORT_STATUS,
1259 .type = SWITCH_TYPE_STRING,
1260 .description = "Returns Detailed port status",
1261 .name = "status",
1262 .get = ip175c_get_port_status,
1263 .set = NULL,
1264 },
1265 [IP175C_PORT_LINK] = {
1266 .id = IP175C_PORT_LINK,
1267 .type = SWITCH_TYPE_INT,
1268 .description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1269 .name = "link",
1270 .get = ip175c_get_port_speed,
1271 .set = ip175c_set_port_speed,
1272 },
1273 [IP175C_PORT_TAGGED] = {
1274 .id = IP175C_PORT_LINK,
1275 .type = SWITCH_TYPE_INT,
1276 .description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1277 .name = "tagged",
1278 .get = ip175c_get_tagged,
1279 .set = ip175c_set_tagged,
1280 },
1281 };
1282
1283 static int ip175c_probe(struct phy_device *pdev)
1284 {
1285 struct ip175c_state *state;
1286 struct switch_dev *dev;
1287 int err;
1288
1289 /* We only attach to PHY 0, but use all available PHYs */
1290 if (pdev->addr != 0)
1291 return -ENODEV;
1292
1293 state = kzalloc(sizeof(*state), GFP_KERNEL);
1294 if (!state)
1295 return -ENOMEM;
1296
1297 dev = &state->dev;
1298 dev->attr_global.attr = ip175c_global;
1299 dev->attr_global.n_attr = ARRAY_SIZE(ip175c_global);
1300 dev->attr_port.attr = ip175c_port;
1301 dev->attr_port.n_attr = ARRAY_SIZE(ip175c_port);
1302 dev->attr_vlan.attr = ip175c_vlan;
1303 dev->attr_vlan.n_attr = ARRAY_SIZE(ip175c_vlan);
1304
1305 dev->get_port_pvid = ip175c_get_pvid;
1306 dev->set_port_pvid = ip175c_set_pvid;
1307 dev->get_vlan_ports = ip175c_get_ports;
1308 dev->set_vlan_ports = ip175c_set_ports;
1309 dev->apply_config = ip175c_apply;
1310 dev->reset_switch = ip175c_reset;
1311
1312 dev->priv = state;
1313 pdev->priv = state;
1314 state->mii_bus = pdev->bus;
1315
1316 err = get_model(state);
1317 if (err < 0)
1318 goto error;
1319
1320 dev->vlans = MAX_VLANS;
1321 dev->cpu_port = state->regs->CPU_PORT;
1322 dev->ports = state->regs->NUM_PORTS;
1323 dev->name = state->regs->NAME;
1324
1325 pr_info("IP175C: Found %s at %s\n", dev->name, dev_name(&pdev->dev));
1326 return 0;
1327
1328 error:
1329 kfree(state);
1330 return err;
1331 }
1332
1333 static int ip175c_config_init(struct phy_device *pdev)
1334 {
1335 struct ip175c_state *state = pdev->priv;
1336 struct net_device *dev = pdev->attached_dev;
1337 int err;
1338
1339 pdev->irq = PHY_IGNORE_INTERRUPT;
1340 err = register_switch(&state->dev, dev);
1341 if (err < 0)
1342 return err;
1343
1344 ip175c_reset(&state->dev);
1345
1346 state->registered = true;
1347 netif_carrier_on(pdev->attached_dev);
1348
1349 return 0;
1350 }
1351
1352 static void ip175c_remove(struct phy_device *pdev)
1353 {
1354 struct ip175c_state *state = pdev->priv;
1355
1356 if (state->registered)
1357 unregister_switch(&state->dev);
1358 kfree(state);
1359 }
1360
1361 static int ip175c_config_aneg(struct phy_device *pdev)
1362 {
1363 return 0;
1364 }
1365
1366 static int ip175c_read_status(struct phy_device *pdev)
1367 {
1368 pdev->speed = SPEED_100;
1369 pdev->duplex = DUPLEX_FULL;
1370 pdev->pause = pdev->asym_pause = 0;
1371 return 0;
1372 }
1373
1374 static struct phy_driver ip175c_driver = {
1375 .name = "IC+ IP175C",
1376 .phy_id = 0x02430c00,
1377 .phy_id_mask = 0x0ffffc00,
1378 .features = PHY_BASIC_FEATURES,
1379 .probe = ip175c_probe,
1380 .remove = ip175c_remove,
1381 .config_init = ip175c_config_init,
1382 .config_aneg = ip175c_config_aneg,
1383 .read_status = ip175c_read_status,
1384 .driver = { .owner = THIS_MODULE },
1385 };
1386
1387 static struct phy_driver ip175a_driver = {
1388 .name = "IC+ IP175A",
1389 .phy_id = 0x02430c50,
1390 .phy_id_mask = 0x0ffffff0,
1391 .features = PHY_BASIC_FEATURES,
1392 .probe = ip175c_probe,
1393 .remove = ip175c_remove,
1394 .config_init = ip175c_config_init,
1395 .config_aneg = ip175c_config_aneg,
1396 .read_status = ip175c_read_status,
1397 .driver = { .owner = THIS_MODULE },
1398 };
1399
1400
1401 int __init ip175c_init(void)
1402 {
1403 int ret;
1404
1405 ret = phy_driver_register(&ip175a_driver);
1406 if (ret < 0)
1407 return ret;
1408
1409 return phy_driver_register(&ip175c_driver);
1410 }
1411
1412 void __exit ip175c_exit(void)
1413 {
1414 phy_driver_unregister(&ip175c_driver);
1415 phy_driver_unregister(&ip175a_driver);
1416 }
1417
1418 MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1419 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1420 MODULE_LICENSE("GPL");
1421
1422 module_init(ip175c_init);
1423 module_exit(ip175c_exit);
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