2 * ip17xx.c: Swconfig configuration for IC+ IP17xx switch family
4 * Copyright (C) 2008 Patrick Horn <patrick.horn@gmail.com>
5 * Copyright (C) 2008, 2010 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>
28 #include <linux/device.h>
34 typedef struct ip17xx_reg {
40 #define NOTSUPPORTED {-1,-1}
42 #define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
46 /*********** CONSTANTS ***********/
47 struct register_mappings {
49 u16 MODEL_NO; // Compare to bits 4-9 of MII register 0,3.
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];
58 /* These ports are tagged.
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];
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}
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];
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];
90 reg ROUTER_CONTROL_REG;
94 bitnum NUMLAN_GROUPS_MAX;
95 bitnum NUMLAN_GROUPS_BIT;
98 bitnum MII_REGISTER_EN_BIT;
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.
103 // Pointers to functions which manipulate hardware state
104 int (*update_state)(struct ip17xx_state *state);
105 int (*set_vlan_mode)(struct ip17xx_state *state);
106 int (*reset)(struct ip17xx_state *state);
109 static int ip175c_update_state(struct ip17xx_state *state);
110 static int ip175c_set_vlan_mode(struct ip17xx_state *state);
111 static int ip175c_reset(struct ip17xx_state *state);
113 static const struct register_mappings IP178C = {
116 .VLAN_DEFAULT_TAG_REG = {
117 {30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
118 {30,9},{30,10},{30,11},
121 .ADD_TAG_REG = {30,12},
122 .ADD_TAG_BIT = {0,1,2,3,4,5,6,7,8},
123 .REMOVE_TAG_REG = {30,13},
124 .REMOVE_TAG_BIT = {4,5,6,7,8,9,10,11,12},
126 .SIMPLE_VLAN_REGISTERS = 1,
128 .VLAN_LOOKUP_REG = {31,0},// +N
129 .VLAN_LOOKUP_REG_5 = NOTSUPPORTED, // not used with SIMPLE_VLAN_REGISTERS
130 .VLAN_LOOKUP_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
131 .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,5,6,7,8},
133 .TAG_VLAN_MASK_REG = {30,14}, // +N
134 .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
135 .TAG_VLAN_MASK_ODD_BIT = {0,1,2,3,4,5,6,7,8},
140 .MODE_REG = NOTSUPPORTED,
142 .ROUTER_CONTROL_REG = {30,30},
144 .NUMLAN_GROUPS_MAX = 8,
145 .NUMLAN_GROUPS_BIT = 8, // {0-2}
147 .VLAN_CONTROL_REG = {30,13},
153 .MII_REGISTER_EN = NOTSUPPORTED,
155 .update_state = ip175c_update_state,
156 .set_vlan_mode = ip175c_set_vlan_mode,
157 .reset = ip175c_reset,
160 static const struct register_mappings IP175C = {
163 .VLAN_DEFAULT_TAG_REG = {
164 {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
165 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
168 .ADD_TAG_REG = {29,23},
169 .REMOVE_TAG_REG = {29,23},
170 .ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
171 .REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
173 .SIMPLE_VLAN_REGISTERS = 0,
175 .VLAN_LOOKUP_REG = {29,19},// +N/2
176 .VLAN_LOOKUP_REG_5 = {30,18},
177 .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
178 .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
180 .TAG_VLAN_MASK_REG = {30,1}, // +N/2
181 .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
182 .TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
189 .ROUTER_CONTROL_REG = {30,9},
191 .NUMLAN_GROUPS_MAX = 8,
192 .NUMLAN_GROUPS_BIT = 0, // {0-2}
194 .VLAN_CONTROL_REG = {30,9},
200 .MII_REGISTER_EN = NOTSUPPORTED,
202 .update_state = ip175c_update_state,
203 .set_vlan_mode = ip175c_set_vlan_mode,
204 .reset = ip175c_reset,
207 static const struct register_mappings IP175A = {
210 .VLAN_DEFAULT_TAG_REG = {
211 {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
212 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
215 .ADD_TAG_REG = {0,23},
216 .REMOVE_TAG_REG = {0,23},
217 .ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
218 .REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
220 .SIMPLE_VLAN_REGISTERS = 0,
222 // Only programmable via EEPROM
223 .VLAN_LOOKUP_REG = NOTSUPPORTED,// +N/2
224 .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
225 .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
226 .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
228 .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
229 .TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
230 .TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
233 .RESET_REG = NOTSUPPORTED,
235 .MODE_REG = NOTSUPPORTED,
237 .ROUTER_CONTROL_REG = NOTSUPPORTED,
238 .VLAN_CONTROL_REG = NOTSUPPORTED,
241 .NUMLAN_GROUPS_MAX = -1,
242 .NUMLAN_GROUPS_BIT = -1, // {0-2}
247 .MII_REGISTER_EN = {0, 18},
248 .MII_REGISTER_EN_BIT = 7,
250 .update_state = ip175c_update_state,
251 .set_vlan_mode = ip175c_set_vlan_mode,
252 .reset = ip175c_reset,
256 static int ip175d_update_state(struct ip17xx_state *state);
257 static int ip175d_set_vlan_mode(struct ip17xx_state *state);
258 static int ip175d_reset(struct ip17xx_state *state);
260 static const struct register_mappings IP175D = {
264 // The IP175D has a completely different interface, so we leave most
265 // of the registers undefined and switch to different code paths.
267 .VLAN_DEFAULT_TAG_REG = {
268 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
269 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
272 .ADD_TAG_REG = NOTSUPPORTED,
273 .REMOVE_TAG_REG = NOTSUPPORTED,
275 .SIMPLE_VLAN_REGISTERS = 0,
277 .VLAN_LOOKUP_REG = NOTSUPPORTED,
278 .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
279 .TAG_VLAN_MASK_REG = NOTSUPPORTED,
283 .MODE_REG = NOTSUPPORTED,
285 .ROUTER_CONTROL_REG = NOTSUPPORTED,
287 .NUMLAN_GROUPS_BIT = -1,
289 .VLAN_CONTROL_REG = NOTSUPPORTED,
295 .MII_REGISTER_EN = NOTSUPPORTED,
297 .update_state = ip175d_update_state,
298 .set_vlan_mode = ip175d_set_vlan_mode,
299 .reset = ip175d_reset,
302 struct ip17xx_state {
303 struct switch_dev dev;
304 struct mii_bus *mii_bus;
307 int router_mode; // ROUTER_EN
308 int vlan_enabled; // TAG_VLAN_EN
311 unsigned int shareports;
313 unsigned int add_tag;
314 unsigned int remove_tag;
318 unsigned int tag; // VLAN tag (IP175D only)
320 const struct register_mappings *regs;
321 reg proc_mii; // phy/reg for the low level register access via swconfig
326 #define get_state(_dev) container_of((_dev), struct ip17xx_state, dev)
328 static int ip_phy_read(struct ip17xx_state *state, int port, int reg)
330 int val = mdiobus_read(state->mii_bus, port, reg);
332 pr_warning("IP17xx: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
335 pr_debug("IP17xx: Read MII(%d,%d) -> %04x\n", port, reg, val);
340 static int ip_phy_write(struct ip17xx_state *state, int port, int reg, u16 val)
345 pr_debug("IP17xx: Write MII(%d,%d) <- %04x\n", port, reg, val);
347 err = mdiobus_write(state->mii_bus, port, reg, val);
349 pr_warning("IP17xx: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
353 static int ip_phy_write_masked(struct ip17xx_state *state, int port, int reg, unsigned int mask, unsigned int data)
355 int val = ip_phy_read(state, port, reg);
358 return ip_phy_write(state, port, reg, (val & ~mask) | data);
361 static int getPhy(struct ip17xx_state *state, reg mii)
365 return ip_phy_read(state, mii.p, mii.m);
368 static int setPhy(struct ip17xx_state *state, reg mii, u16 value)
374 err = ip_phy_write(state, mii.p, mii.m, value);
384 * These two macros are to simplify the mapping of logical bits to the bits in hardware.
385 * NOTE: these macros will return if there is an error!
388 #define GET_PORT_BITS(state, bits, addr, bit_lookup) \
390 int i, val = getPhy((state), (addr)); \
394 for (i = 0; i < MAX_PORTS; i++) { \
395 if ((bit_lookup)[i] == -1) continue; \
396 if (val & (1<<(bit_lookup)[i])) \
401 #define SET_PORT_BITS(state, bits, addr, bit_lookup) \
403 int i, val = getPhy((state), (addr)); \
406 for (i = 0; i < MAX_PORTS; i++) { \
407 unsigned int newmask = ((bits)&(1<<i)); \
408 if ((bit_lookup)[i] == -1) continue; \
409 val &= ~(1<<(bit_lookup)[i]); \
410 val |= ((newmask>>i)<<(bit_lookup)[i]); \
412 val = setPhy((state), (addr), val); \
418 static int get_model(struct ip17xx_state *state)
421 int oui_id, model_no, rev_no, chip_no;
423 id1 = ip_phy_read(state, 0, 2);
424 id2 = ip_phy_read(state, 0, 3);
425 oui_id = (id1 << 6) | ((id2 >> 10) & 0x3f);
426 model_no = (id2 >> 4) & 0x3f;
428 pr_debug("IP17xx: Identified oui=%06x model=%02x rev=%X\n", oui_id, model_no, rev_no);
430 if (oui_id != 0x0090c3) // No other oui_id should have reached us anyway
433 if (model_no == IP175A.MODEL_NO) {
434 state->regs = &IP175A;
435 } else if (model_no == IP175C.MODEL_NO) {
437 * Several models share the same model_no:
438 * 178C has more PHYs, so we try whether the device responds to a read from PHY5
439 * 175D has a new chip ID register
442 if (ip_phy_read(state, 5, 2) == 0x0243) {
443 state->regs = &IP178C;
445 chip_no = ip_phy_read(state, 20, 0);
446 pr_debug("IP17xx: Chip ID register reads %04x\n", chip_no);
447 if (chip_no == 0x175d) {
448 state->regs = &IP175D;
450 state->regs = &IP175C;
454 pr_warning("IP17xx: Found an unknown IC+ switch with model number %02x, revision %X.\n", model_no, rev_no);
460 /*** Low-level functions for the older models ***/
462 /** Only set vlan and router flags in the switch **/
463 static int ip175c_set_flags(struct ip17xx_state *state)
467 if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
471 val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
475 if (state->regs->ROUTER_EN_BIT >= 0) {
476 if (state->router_mode) {
477 val |= (1<<state->regs->ROUTER_EN_BIT);
479 val &= (~(1<<state->regs->ROUTER_EN_BIT));
482 if (state->regs->TAG_VLAN_BIT >= 0) {
483 if (state->vlan_enabled) {
484 val |= (1<<state->regs->TAG_VLAN_BIT);
486 val &= (~(1<<state->regs->TAG_VLAN_BIT));
489 if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
490 val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
491 if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
492 val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
493 } else if (state->num_vlans >= 1) {
494 val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
497 return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
500 /** Set all VLAN and port state. Usually you should call "correct_vlan_state" first. **/
501 static int ip175c_set_state(struct ip17xx_state *state)
505 SET_PORT_BITS(state, state->add_tag,
506 state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
507 SET_PORT_BITS(state, state->remove_tag,
508 state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
510 if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
511 for (j=0; j<state->regs->NUM_PORTS; j++) {
513 const bitnum *bit_lookup = (j%2==0)?
514 state->regs->VLAN_LOOKUP_EVEN_BIT:
515 state->regs->VLAN_LOOKUP_ODD_BIT;
517 addr = state->regs->VLAN_LOOKUP_REG;
518 if (state->regs->SIMPLE_VLAN_REGISTERS) {
533 addr = state->regs->VLAN_LOOKUP_REG_5;
536 addr.m = -1; // shouldn't get here, but...
540 //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
541 if (REG_SUPP(addr)) {
542 SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
546 if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
547 for (j=0; j<MAX_VLANS; j++) {
548 reg addr = state->regs->TAG_VLAN_MASK_REG;
549 const bitnum *bit_lookup = (j%2==0)?
550 state->regs->TAG_VLAN_MASK_EVEN_BIT:
551 state->regs->TAG_VLAN_MASK_ODD_BIT;
552 unsigned int vlan_mask;
553 if (state->regs->SIMPLE_VLAN_REGISTERS) {
558 vlan_mask = state->vlans[j].ports;
559 SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
563 for (i=0; i<MAX_PORTS; i++) {
564 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
565 int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
566 state->ports[i].pvid);
573 return ip175c_set_flags(state);
577 * Uses only the VLAN port mask and the add tag mask to generate the other fields:
578 * which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
580 static void ip175c_correct_vlan_state(struct ip17xx_state *state)
583 state->num_vlans = 0;
584 for (i=0; i<MAX_VLANS; i++) {
585 if (state->vlans[i].ports != 0) {
586 state->num_vlans = i+1; // Hack -- we need to store the "set" vlans somewhere...
590 for (i=0; i<state->regs->NUM_PORTS; i++) {
591 unsigned int portmask = (1<<i);
592 if (!state->vlan_enabled) {
593 // Share with everybody!
594 state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
597 state->ports[i].shareports = portmask;
598 for (j=0; j<MAX_VLANS; j++) {
599 if (state->vlans[j].ports & portmask)
600 state->ports[i].shareports |= state->vlans[j].ports;
605 static int ip175c_update_state(struct ip17xx_state *state)
607 ip175c_correct_vlan_state(state);
608 return ip175c_set_state(state);
611 static int ip175c_set_vlan_mode(struct ip17xx_state *state)
613 return ip175c_update_state(state);
616 static int ip175c_reset(struct ip17xx_state *state)
620 if (REG_SUPP(state->regs->MODE_REG)) {
621 err = setPhy(state, state->regs->MODE_REG, state->regs->MODE_VAL);
624 err = getPhy(state, state->regs->MODE_REG);
629 return ip175c_update_state(state);
632 /*** Low-level functions for IP175D ***/
634 static int ip175d_update_state(struct ip17xx_state *state)
636 unsigned int filter_mask = 0;
637 unsigned int ports[16], add[16], rem[16];
641 for (i = 0; i < 16; i++) {
645 if (!state->vlan_enabled) {
646 err |= ip_phy_write(state, 22, 14+i, i+1); // default tags
650 if (!state->vlans[i].tag) {
652 err |= ip_phy_write(state, 22, 14+i, 0); // tag
655 filter_mask |= 1 << i;
656 err |= ip_phy_write(state, 22, 14+i, state->vlans[i].tag);
657 ports[i] = state->vlans[i].ports;
658 for (j = 0; j < 6; j++) {
659 if (ports[i] & (1 << j)) {
660 if (state->add_tag & (1 << j))
662 if (state->remove_tag & (1 << j))
668 // Port masks, tag adds and removals
669 for (i = 0; i < 8; i++) {
670 err |= ip_phy_write(state, 23, i, ports[2*i] | (ports[2*i+1] << 8));
671 err |= ip_phy_write(state, 23, 8+i, add[2*i] | (add[2*i+1] << 8));
672 err |= ip_phy_write(state, 23, 16+i, rem[2*i] | (rem[2*i+1] << 8));
674 err |= ip_phy_write(state, 22, 10, filter_mask);
676 // Default VLAN tag for each port
677 for (i = 0; i < 6; i++)
678 err |= ip_phy_write(state, 22, 4+i, state->vlans[state->ports[i].pvid].tag);
680 return (err ? -EIO : 0);
683 static int ip175d_set_vlan_mode(struct ip17xx_state *state)
688 if (state->vlan_enabled) {
689 // VLAN classification rules: tag-based VLANs, use VID to classify,
690 // drop packets that cannot be classified.
691 err |= ip_phy_write_masked(state, 22, 0, 0x3fff, 0x003f);
693 // Ingress rules: CFI=1 dropped, null VID is untagged, VID=1 passed,
694 // VID=0xfff discarded, admin both tagged and untagged, ingress
696 err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
698 // Egress rules: IGMP processing off, keep VLAN header off
699 err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
701 // VLAN classification rules: everything off & clear table
702 err |= ip_phy_write_masked(state, 22, 0, 0xbfff, 0x8000);
704 // Ingress and egress rules: set to defaults
705 err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
706 err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
709 // Reset default VLAN for each port to 0
710 for (i = 0; i < 6; i++)
711 state->ports[i].pvid = 0;
713 err |= ip175d_update_state(state);
715 return (err ? -EIO : 0);
718 static int ip175d_reset(struct ip17xx_state *state)
722 // Disable the special tagging mode
723 err |= ip_phy_write_masked(state, 21, 22, 0x0003, 0x0000);
725 // Set 802.1q protocol type
726 err |= ip_phy_write(state, 22, 3, 0x8100);
728 state->vlan_enabled = 0;
729 err |= ip175d_set_vlan_mode(state);
731 return (err ? -EIO : 0);
734 /*** High-level functions ***/
736 static int ip17xx_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
738 struct ip17xx_state *state = get_state(dev);
740 val->value.i = state->vlan_enabled;
744 static void ip17xx_reset_vlan_config(struct ip17xx_state *state)
748 state->remove_tag = (state->vlan_enabled ? ((1<<state->regs->NUM_PORTS)-1) : 0x0000);
749 state->add_tag = 0x0000;
750 for (i = 0; i < MAX_VLANS; i++) {
751 state->vlans[i].ports = 0x0000;
752 state->vlans[i].tag = (i ? i : 16);
754 for (i = 0; i < MAX_PORTS; i++)
755 state->ports[i].pvid = 0;
758 static int ip17xx_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
760 struct ip17xx_state *state = get_state(dev);
763 enable = val->value.i;
764 if (state->vlan_enabled == enable) {
765 // Do not change any state.
768 state->vlan_enabled = enable;
770 // Otherwise, if we are switching state, set fields to a known default.
771 ip17xx_reset_vlan_config(state);
773 return state->regs->set_vlan_mode(state);
776 static int ip17xx_get_ports(struct switch_dev *dev, struct switch_val *val)
778 struct ip17xx_state *state = get_state(dev);
783 if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
786 ports = state->vlans[val->port_vlan].ports;
789 while (b < MAX_PORTS) {
791 int istagged = ((state->add_tag >> b) & 1);
792 val->value.ports[ind].id = b;
793 val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
804 static int ip17xx_set_ports(struct switch_dev *dev, struct switch_val *val)
806 struct ip17xx_state *state = get_state(dev);
809 if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
812 state->vlans[val->port_vlan].ports = 0;
813 for (i = 0; i < val->len; i++) {
814 unsigned int bitmask = (1<<val->value.ports[i].id);
815 state->vlans[val->port_vlan].ports |= bitmask;
816 if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
817 state->add_tag |= bitmask;
818 state->remove_tag &= (~bitmask);
820 state->add_tag &= (~bitmask);
821 state->remove_tag |= bitmask;
825 return state->regs->update_state(state);
828 static int ip17xx_apply(struct switch_dev *dev)
830 struct ip17xx_state *state = get_state(dev);
832 if (REG_SUPP(state->regs->MII_REGISTER_EN)) {
833 int val = getPhy(state, state->regs->MII_REGISTER_EN);
837 val |= (1<<state->regs->MII_REGISTER_EN_BIT);
838 return setPhy(state, state->regs->MII_REGISTER_EN, val);
843 static int ip17xx_reset(struct switch_dev *dev)
845 struct ip17xx_state *state = get_state(dev);
848 if (REG_SUPP(state->regs->RESET_REG)) {
849 err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
852 err = getPhy(state, state->regs->RESET_REG);
855 * Data sheet specifies reset period to be 2 msec.
856 * (I don't see any mention of the 2ms delay in the IP178C spec, only
857 * in IP175C, but it can't hurt.)
862 /* reset switch ports */
863 for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
864 err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
869 state->router_mode = 0;
870 state->vlan_enabled = 0;
871 ip17xx_reset_vlan_config(state);
873 return state->regs->reset(state);
876 static int ip17xx_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
878 struct ip17xx_state *state = get_state(dev);
880 if (state->add_tag & (1<<val->port_vlan)) {
881 if (state->remove_tag & (1<<val->port_vlan))
882 val->value.i = 3; // shouldn't ever happen.
886 if (state->remove_tag & (1<<val->port_vlan))
894 static int ip17xx_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
896 struct ip17xx_state *state = get_state(dev);
898 state->add_tag &= ~(1<<val->port_vlan);
899 state->remove_tag &= ~(1<<val->port_vlan);
901 if (val->value.i == 0)
902 state->remove_tag |= (1<<val->port_vlan);
903 if (val->value.i == 1)
904 state->add_tag |= (1<<val->port_vlan);
906 return state->regs->update_state(state);
909 /** Get the current phy address */
910 static int ip17xx_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
912 struct ip17xx_state *state = get_state(dev);
914 val->value.i = state->proc_mii.p;
918 /** Set a new phy address for low level access to registers */
919 static int ip17xx_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
921 struct ip17xx_state *state = get_state(dev);
922 int new_reg = val->value.i;
924 if (new_reg < 0 || new_reg > 31)
925 state->proc_mii.p = (u16)-1;
927 state->proc_mii.p = (u16)new_reg;
931 /** Get the current register number */
932 static int ip17xx_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
934 struct ip17xx_state *state = get_state(dev);
936 val->value.i = state->proc_mii.m;
940 /** Set a new register address for low level access to registers */
941 static int ip17xx_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
943 struct ip17xx_state *state = get_state(dev);
944 int new_reg = val->value.i;
946 if (new_reg < 0 || new_reg > 31)
947 state->proc_mii.m = (u16)-1;
949 state->proc_mii.m = (u16)new_reg;
953 /** Get the register content of state->proc_mii */
954 static int ip17xx_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
956 struct ip17xx_state *state = get_state(dev);
957 int retval = -EINVAL;
958 if (REG_SUPP(state->proc_mii))
959 retval = getPhy(state, state->proc_mii);
964 val->value.i = retval;
969 /** Write a value to the register defined by phy/reg above */
970 static int ip17xx_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
972 struct ip17xx_state *state = get_state(dev);
973 int myval, err = -EINVAL;
975 myval = val->value.i;
976 if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
977 err = setPhy(state, state->proc_mii, (u16)myval);
982 static int ip17xx_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
984 struct ip17xx_state *state = get_state(dev);
985 val->value.s = state->regs->NAME; // Just a const pointer, won't be freed by swconfig.
989 static int ip17xx_get_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
991 struct ip17xx_state *state = get_state(dev);
992 int vlan = val->port_vlan;
994 if (vlan < 0 || vlan >= MAX_VLANS)
997 val->value.i = state->vlans[vlan].tag;
1001 static int ip17xx_set_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1003 struct ip17xx_state *state = get_state(dev);
1004 int vlan = val->port_vlan;
1005 int tag = val->value.i;
1007 if (vlan < 0 || vlan >= MAX_VLANS)
1010 if (tag < 0 || tag > 4095)
1013 state->vlans[vlan].tag = tag;
1014 return state->regs->update_state(state);
1017 static int ip17xx_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1019 struct ip17xx_state *state = get_state(dev);
1020 int nr = val->port_vlan;
1024 if (val->value.i == 100) {
1027 } else if (val->value.i == 10) {
1035 /* Can't set speed for cpu port */
1036 if (nr == state->regs->CPU_PORT)
1039 if (nr >= dev->ports || nr < 0)
1042 ctrl = ip_phy_read(state, nr, 0);
1048 ctrl |= (autoneg<<12);
1049 ctrl |= (speed<<13);
1051 return ip_phy_write(state, nr, 0, ctrl);
1054 static int ip17xx_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1056 struct ip17xx_state *state = get_state(dev);
1057 int nr = val->port_vlan;
1060 if (nr == state->regs->CPU_PORT) {
1065 if (nr >= dev->ports || nr < 0)
1068 status = ip_phy_read(state, nr, 1);
1069 speed = ip_phy_read(state, nr, 18);
1070 if (status < 0 || speed < 0)
1074 val->value.i = ((speed & (1<<11)) ? 100 : 10);
1081 static int ip17xx_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1083 struct ip17xx_state *state = get_state(dev);
1084 int ctrl, speed, status;
1085 int nr = val->port_vlan;
1087 char *buf = state->buf; // fixed-length at 80.
1089 if (nr == state->regs->CPU_PORT) {
1090 sprintf(buf, "up, 100 Mbps, cpu port");
1095 if (nr >= dev->ports || nr < 0)
1098 ctrl = ip_phy_read(state, nr, 0);
1099 status = ip_phy_read(state, nr, 1);
1100 speed = ip_phy_read(state, nr, 18);
1101 if (ctrl < 0 || status < 0 || speed < 0)
1105 len = sprintf(buf, "up, %d Mbps, %s duplex",
1106 ((speed & (1<<11)) ? 100 : 10),
1107 ((speed & (1<<10)) ? "full" : "half"));
1109 len = sprintf(buf, "down");
1111 if (ctrl & (1<<12)) {
1112 len += sprintf(buf+len, ", auto-negotiate");
1113 if (!(status & (1<<5)))
1114 len += sprintf(buf+len, " (in progress)");
1116 len += sprintf(buf+len, ", fixed speed (%d)",
1117 ((ctrl & (1<<13)) ? 100 : 10));
1125 static int ip17xx_get_pvid(struct switch_dev *dev, int port, int *val)
1127 struct ip17xx_state *state = get_state(dev);
1129 *val = state->ports[port].pvid;
1133 static int ip17xx_set_pvid(struct switch_dev *dev, int port, int val)
1135 struct ip17xx_state *state = get_state(dev);
1137 if (val < 0 || val >= MAX_VLANS)
1140 state->ports[port].pvid = val;
1141 return state->regs->update_state(state);
1155 IP17XX_REGISTER_PHY,
1156 IP17XX_REGISTER_MII,
1157 IP17XX_REGISTER_VALUE,
1158 IP17XX_REGISTER_ERRNO,
1165 static const struct switch_attr ip17xx_global[] = {
1166 [IP17XX_ENABLE_VLAN] = {
1167 .id = IP17XX_ENABLE_VLAN,
1168 .type = SWITCH_TYPE_INT,
1169 .name = "enable_vlan",
1170 .description = "Flag to enable or disable VLANs and tagging",
1171 .get = ip17xx_get_enable_vlan,
1172 .set = ip17xx_set_enable_vlan,
1174 [IP17XX_GET_NAME] = {
1175 .id = IP17XX_GET_NAME,
1176 .type = SWITCH_TYPE_STRING,
1177 .description = "Returns the type of IC+ chip.",
1179 .get = ip17xx_read_name,
1182 /* jal: added for low level debugging etc. */
1183 [IP17XX_REGISTER_PHY] = {
1184 .id = IP17XX_REGISTER_PHY,
1185 .type = SWITCH_TYPE_INT,
1186 .description = "Direct register access: set PHY (0-4, or 29,30,31)",
1188 .get = ip17xx_get_phy,
1189 .set = ip17xx_set_phy,
1191 [IP17XX_REGISTER_MII] = {
1192 .id = IP17XX_REGISTER_MII,
1193 .type = SWITCH_TYPE_INT,
1194 .description = "Direct register access: set MII register number (0-31)",
1196 .get = ip17xx_get_reg,
1197 .set = ip17xx_set_reg,
1199 [IP17XX_REGISTER_VALUE] = {
1200 .id = IP17XX_REGISTER_VALUE,
1201 .type = SWITCH_TYPE_INT,
1202 .description = "Direct register access: read/write to register (0-65535)",
1204 .get = ip17xx_get_val,
1205 .set = ip17xx_set_val,
1209 static const struct switch_attr ip17xx_vlan[] = {
1210 [IP17XX_VLAN_TAG] = {
1211 .id = IP17XX_VLAN_TAG,
1212 .type = SWITCH_TYPE_INT,
1213 .description = "VLAN ID (0-4095) [IP175D only]",
1215 .get = ip17xx_get_tag,
1216 .set = ip17xx_set_tag,
1220 static const struct switch_attr ip17xx_port[] = {
1221 [IP17XX_PORT_STATUS] = {
1222 .id = IP17XX_PORT_STATUS,
1223 .type = SWITCH_TYPE_STRING,
1224 .description = "Returns Detailed port status",
1226 .get = ip17xx_get_port_status,
1229 [IP17XX_PORT_LINK] = {
1230 .id = IP17XX_PORT_LINK,
1231 .type = SWITCH_TYPE_INT,
1232 .description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1234 .get = ip17xx_get_port_speed,
1235 .set = ip17xx_set_port_speed,
1237 [IP17XX_PORT_TAGGED] = {
1238 .id = IP17XX_PORT_LINK,
1239 .type = SWITCH_TYPE_INT,
1240 .description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1242 .get = ip17xx_get_tagged,
1243 .set = ip17xx_set_tagged,
1247 static const struct switch_dev_ops ip17xx_ops = {
1249 .attr = ip17xx_global,
1250 .n_attr = ARRAY_SIZE(ip17xx_global),
1253 .attr = ip17xx_port,
1254 .n_attr = ARRAY_SIZE(ip17xx_port),
1257 .attr = ip17xx_vlan,
1258 .n_attr = ARRAY_SIZE(ip17xx_vlan),
1261 .get_port_pvid = ip17xx_get_pvid,
1262 .set_port_pvid = ip17xx_set_pvid,
1263 .get_vlan_ports = ip17xx_get_ports,
1264 .set_vlan_ports = ip17xx_set_ports,
1265 .apply_config = ip17xx_apply,
1266 .reset_switch = ip17xx_reset,
1269 static int ip17xx_probe(struct phy_device *pdev)
1271 struct ip17xx_state *state;
1272 struct switch_dev *dev;
1275 /* We only attach to PHY 0, but use all available PHYs */
1276 if (pdev->addr != 0)
1279 state = kzalloc(sizeof(*state), GFP_KERNEL);
1286 state->mii_bus = pdev->bus;
1288 err = get_model(state);
1292 dev->vlans = MAX_VLANS;
1293 dev->cpu_port = state->regs->CPU_PORT;
1294 dev->ports = state->regs->NUM_PORTS;
1295 dev->name = state->regs->NAME;
1296 dev->ops = &ip17xx_ops;
1298 pr_info("IP17xx: Found %s at %s\n", dev->name, dev_name(&pdev->dev));
1306 static int ip17xx_config_init(struct phy_device *pdev)
1308 struct ip17xx_state *state = pdev->priv;
1309 struct net_device *dev = pdev->attached_dev;
1312 err = register_switch(&state->dev, dev);
1316 state->registered = true;
1317 ip17xx_reset(&state->dev);
1321 static void ip17xx_remove(struct phy_device *pdev)
1323 struct ip17xx_state *state = pdev->priv;
1325 if (state->registered)
1326 unregister_switch(&state->dev);
1330 static int ip17xx_config_aneg(struct phy_device *pdev)
1335 static int ip17xx_aneg_done(struct phy_device *pdev)
1337 return BMSR_ANEGCOMPLETE;
1340 static int ip17xx_update_link(struct phy_device *pdev)
1346 static int ip17xx_read_status(struct phy_device *pdev)
1348 pdev->speed = SPEED_100;
1349 pdev->duplex = DUPLEX_FULL;
1350 pdev->pause = pdev->asym_pause = 0;
1356 static struct phy_driver ip17xx_driver = {
1357 .name = "IC+ IP17xx",
1358 .phy_id = 0x02430c00,
1359 .phy_id_mask = 0x0ffffc00,
1360 .features = PHY_BASIC_FEATURES,
1361 .probe = ip17xx_probe,
1362 .remove = ip17xx_remove,
1363 .config_init = ip17xx_config_init,
1364 .config_aneg = ip17xx_config_aneg,
1365 .aneg_done = ip17xx_aneg_done,
1366 .update_link = ip17xx_update_link,
1367 .read_status = ip17xx_read_status,
1368 .driver = { .owner = THIS_MODULE },
1371 static struct phy_driver ip175a_driver = {
1372 .name = "IC+ IP175A",
1373 .phy_id = 0x02430c50,
1374 .phy_id_mask = 0x0ffffff0,
1375 .features = PHY_BASIC_FEATURES,
1376 .probe = ip17xx_probe,
1377 .remove = ip17xx_remove,
1378 .config_init = ip17xx_config_init,
1379 .config_aneg = ip17xx_config_aneg,
1380 .aneg_done = ip17xx_aneg_done,
1381 .update_link = ip17xx_update_link,
1382 .read_status = ip17xx_read_status,
1383 .driver = { .owner = THIS_MODULE },
1387 int __init ip17xx_init(void)
1391 ret = phy_driver_register(&ip175a_driver);
1395 return phy_driver_register(&ip17xx_driver);
1398 void __exit ip17xx_exit(void)
1400 phy_driver_unregister(&ip17xx_driver);
1401 phy_driver_unregister(&ip175a_driver);
1404 MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1405 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1406 MODULE_AUTHOR("Martin Mares <mj@ucw.cz>");
1407 MODULE_LICENSE("GPL");
1409 module_init(ip17xx_init);
1410 module_exit(ip17xx_exit);