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
  29 #define MAX_VLANS 16
  30 #define MAX_PORTS 9
  31 #undef DUMP_MII_IO
  32
  33 typedef struct ip175c_reg {
  34         u16 p;                  // phy
  35         u16 m;                  // mii
  36 } reg;
  37 typedef char bitnum;
  38
  39 #define NOTSUPPORTED {-1,-1}
  40
  41 #define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
  42
  43 /*********** CONSTANTS ***********/
  44 struct register_mappings {
  45         char *NAME;
  46         u16 MODEL_NO;                   // Compare to bits 4-9 of MII register 0,3.
  47         bitnum NUM_PORTS;
  48         bitnum CPU_PORT;
  49
  50 /* The default VLAN for each port.
  51          Default: 0x0001 for Ports 0,1,2,3
  52                   0x0002 for Ports 4,5 */
  53         reg VLAN_DEFAULT_TAG_REG[MAX_PORTS];
  54
  55 /* These ports are tagged.
  56          Default: 0x00 */
  57         reg ADD_TAG_REG;
  58         reg REMOVE_TAG_REG;
  59         bitnum ADD_TAG_BIT[MAX_PORTS];
  60 /* These ports are untagged.
  61          Default: 0x00 (i.e. do not alter any VLAN tags...)
  62          Maybe set to 0 if user disables VLANs. */
  63         bitnum REMOVE_TAG_BIT[MAX_PORTS];
  64
  65 /* Port M and Port N are on the same VLAN.
  66          Default: All ports on all VLANs. */
  67 // Use register {29, 19+N/2}
  68         reg VLAN_LOOKUP_REG;
  69 // Port 5 uses register {30, 18} but same as odd bits.
  70         reg VLAN_LOOKUP_REG_5;          // in a different register on IP175C.
  71         bitnum VLAN_LOOKUP_EVEN_BIT[MAX_PORTS];
  72         bitnum VLAN_LOOKUP_ODD_BIT[MAX_PORTS];
  73
  74 /* This VLAN corresponds to which ports.
  75          Default: 0x2f,0x30,0x3f,0x3f... */
  76         reg TAG_VLAN_MASK_REG;
  77         bitnum TAG_VLAN_MASK_EVEN_BIT[MAX_PORTS];
  78         bitnum TAG_VLAN_MASK_ODD_BIT[MAX_PORTS];
  79
  80         int RESET_VAL;
  81         reg RESET_REG;
  82
  83         reg MODE_REG;
  84         int MODE_VAL;
  85
  86 /* General flags */
  87         reg ROUTER_CONTROL_REG;
  88         reg VLAN_CONTROL_REG;
  89         bitnum TAG_VLAN_BIT;
  90         bitnum ROUTER_EN_BIT;
  91         bitnum NUMLAN_GROUPS_MAX;
  92         bitnum NUMLAN_GROUPS_BIT;
  93
  94         reg MII_REGISTER_EN;
  95         bitnum MII_REGISTER_EN_BIT;
  96
  97         // set to 1 for 178C, 0 for 175C.
  98         bitnum SIMPLE_VLAN_REGISTERS;   // 175C has two vlans per register but 178C has only one.
  99 };
 100
 101 static const struct register_mappings IP178C = {
 102         .NAME = "IP178C",
 103         .MODEL_NO = 0x18,
 104         .VLAN_DEFAULT_TAG_REG = {
 105                 {30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
 106                 {30,9},{30,10},{30,11},
 107         },
 108
 109         .ADD_TAG_REG = {30,12},
 110         .ADD_TAG_BIT = {0,1,2,3,4,5,6,7,8},
 111         .REMOVE_TAG_REG = {30,13},
 112         .REMOVE_TAG_BIT = {4,5,6,7,8,9,10,11,12},
 113
 114         .SIMPLE_VLAN_REGISTERS = 1,
 115
 116         .VLAN_LOOKUP_REG = {31,0},// +N
 117         .VLAN_LOOKUP_REG_5 = NOTSUPPORTED, // not used with SIMPLE_VLAN_REGISTERS
 118         .VLAN_LOOKUP_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
 119         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,5,6,7,8},
 120
 121         .TAG_VLAN_MASK_REG = {30,14}, // +N
 122         .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
 123         .TAG_VLAN_MASK_ODD_BIT = {0,1,2,3,4,5,6,7,8},
 124
 125         .RESET_VAL = 0x55AA,
 126         .RESET_REG = {30,0},
 127         .MODE_VAL = 0,
 128         .MODE_REG = NOTSUPPORTED,
 129
 130         .ROUTER_CONTROL_REG = {30,30},
 131         .ROUTER_EN_BIT = 11,
 132         .NUMLAN_GROUPS_MAX = 8,
 133         .NUMLAN_GROUPS_BIT = 8, // {0-2}
 134
 135         .VLAN_CONTROL_REG = {30,13},
 136         .TAG_VLAN_BIT = 3,
 137
 138         .CPU_PORT = 8,
 139         .NUM_PORTS = 9,
 140
 141         .MII_REGISTER_EN = NOTSUPPORTED,
 142
 143 };
 144
 145 static const struct register_mappings IP175C = {
 146         .NAME = "IP175C",
 147         .MODEL_NO = 0x18,
 148         .VLAN_DEFAULT_TAG_REG = {
 149                 {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
 150                 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
 151         },
 152
 153         .ADD_TAG_REG = {29,23},
 154         .REMOVE_TAG_REG = {29,23},
 155         .ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
 156         .REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
 157
 158         .SIMPLE_VLAN_REGISTERS = 0,
 159
 160         .VLAN_LOOKUP_REG = {29,19},// +N/2
 161         .VLAN_LOOKUP_REG_5 = {30,18},
 162         .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
 163         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
 164
 165         .TAG_VLAN_MASK_REG = {30,1}, // +N/2
 166         .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
 167         .TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
 168
 169         .RESET_VAL = 0x175C,
 170         .RESET_REG = {30,0},
 171         .MODE_VAL = 0x175C,
 172         .MODE_REG = {29,31},
 173
 174         .ROUTER_CONTROL_REG = {30,9},
 175         .ROUTER_EN_BIT = 3,
 176         .NUMLAN_GROUPS_MAX = 8,
 177         .NUMLAN_GROUPS_BIT = 0, // {0-2}
 178
 179         .VLAN_CONTROL_REG = {30,9},
 180         .TAG_VLAN_BIT = 7,
 181
 182         .NUM_PORTS = 6,
 183         .CPU_PORT = 5,
 184
 185         .MII_REGISTER_EN = NOTSUPPORTED,
 186
 187 };
 188
 189 static const struct register_mappings IP175A = {
 190         .NAME = "IP175A",
 191         .MODEL_NO = 0x05,
 192         .VLAN_DEFAULT_TAG_REG = {
 193                 {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
 194                 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
 195         },
 196
 197         .ADD_TAG_REG = {0,23},
 198         .REMOVE_TAG_REG = {0,23},
 199         .ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
 200         .REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
 201
 202         .SIMPLE_VLAN_REGISTERS = 0,
 203
 204         // Only programmable via EEPROM
 205         .VLAN_LOOKUP_REG = NOTSUPPORTED,// +N/2
 206         .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
 207         .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
 208         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
 209
 210         .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
 211         .TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
 212         .TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
 213
 214         .RESET_VAL = -1,
 215         .RESET_REG = NOTSUPPORTED,
 216         .MODE_VAL = 0,
 217         .MODE_REG = NOTSUPPORTED,
 218
 219         .ROUTER_CONTROL_REG = NOTSUPPORTED,
 220         .VLAN_CONTROL_REG = NOTSUPPORTED,
 221         .TAG_VLAN_BIT = -1,
 222         .ROUTER_EN_BIT = -1,
 223         .NUMLAN_GROUPS_MAX = -1,
 224         .NUMLAN_GROUPS_BIT = -1, // {0-2}
 225
 226         .NUM_PORTS = 5,
 227         .CPU_PORT = 4,
 228
 229         .MII_REGISTER_EN = {0, 18},
 230         .MII_REGISTER_EN_BIT = 7,
 231 };
 232
 233
 234 struct ip175c_state {
 235         struct switch_dev dev;
 236         struct mii_bus *mii_bus;
 237         bool registered;
 238
 239         int router_mode;                // ROUTER_EN
 240         int vlan_enabled;               // TAG_VLAN_EN
 241         struct port_state {
 242                 u16 pvid;
 243                 unsigned int shareports;
 244         } ports[MAX_PORTS];
 245         unsigned int add_tag;
 246         unsigned int remove_tag;
 247         int num_vlans;
 248         unsigned int vlan_ports[MAX_VLANS];
 249         const struct register_mappings *regs;
 250         reg proc_mii;   // phy/reg for the low level register access via swconfig
 251
 252         char buf[80];
 253 };
 254
 255
 256 static int ip_phy_read(struct ip175c_state *state, int port, int reg)
 257 {
 258         int val = mdiobus_read(state->mii_bus, port, reg);
 259         if (val < 0)
 260                 pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
 261 #ifdef DUMP_MII_IO
 262         else
 263                 pr_debug("IP175C: Read MII(%d,%d) -> %04x\n", port, reg, val);
 264 #endif
 265         return val;
 266 }
 267
 268 static int ip_phy_write(struct ip175c_state *state, int port, int reg, u16 val)
 269 {
 270         int err;
 271
 272 #ifdef DUMP_MII_IO
 273         pr_debug("IP175C: Write MII(%d,%d) <- %04x\n", port, reg, val);
 274 #endif
 275         err = mdiobus_write(state->mii_bus, port, reg, val);
 276         if (err < 0)
 277                 pr_warning("IP175C: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
 278         return err;
 279 }
 280
 281 static int ip_phy_write_masked(struct ip175c_state *state, int port, int reg, unsigned int mask, unsigned int data)
 282 {
 283         int val = ip_phy_read(state, port, reg);
 284         if (val < 0)
 285                 return 0;
 286         return ip_phy_write(state, port, reg, (val & ~mask) | data);
 287 }
 288
 289 static int getPhy(struct ip175c_state *state, reg mii)
 290 {
 291         if (!REG_SUPP(mii))
 292                 return -EFAULT;
 293         return ip_phy_read(state, mii.p, mii.m);
 294 }
 295
 296 static int setPhy(struct ip175c_state *state, reg mii, u16 value)
 297 {
 298         int err;
 299
 300         if (!REG_SUPP(mii))
 301                 return -EFAULT;
 302         err = ip_phy_write(state, mii.p, mii.m, value);
 303         if (err < 0)
 304                 return err;
 305         getPhy(state, mii);
 306         return 0;
 307 }
 308
 309
 310 /**
 311  * These two macros are to simplify the mapping of logical bits to the bits in hardware.
 312  * NOTE: these macros will return if there is an error!
 313  */
 314
 315 #define GET_PORT_BITS(state, bits, addr, bit_lookup)            \
 316         do {                                                    \
 317                 int i, val = getPhy((state), (addr));           \
 318                 if (val < 0)                                    \
 319                         return val;                             \
 320                 (bits) = 0;                                     \
 321                 for (i = 0; i < MAX_PORTS; i++) {               \
 322                         if ((bit_lookup)[i] == -1) continue;    \
 323                         if (val & (1<<(bit_lookup)[i]))         \
 324                                 (bits) |= (1<<i);               \
 325                 }                                               \
 326         } while (0)
 327
 328 #define SET_PORT_BITS(state, bits, addr, bit_lookup)            \
 329         do {                                                    \
 330                 int i, val = getPhy((state), (addr));           \
 331                 if (val < 0)                                    \
 332                         return val;                             \
 333                 for (i = 0; i < MAX_PORTS; i++) {               \
 334                         unsigned int newmask = ((bits)&(1<<i)); \
 335                         if ((bit_lookup)[i] == -1) continue;    \
 336                         val &= ~(1<<(bit_lookup)[i]);           \
 337                         val |= ((newmask>>i)<<(bit_lookup)[i]); \
 338                 }                                               \
 339                 val = setPhy((state), (addr), val);             \
 340                 if (val < 0)                                    \
 341                         return val;                             \
 342         } while (0)
 343
 344
 345 static int get_model(struct ip175c_state *state)
 346 {
 347         reg oui_id_reg = {0, 2};
 348         int oui_id;
 349         reg model_no_reg = {0, 3};
 350         int model_no, model_no_orig;
 351
 352         // 175 and 178 have the same oui ID.
 353         reg oui_id_reg_178c = {5, 2}; // returns error on IP175C.
 354         int is_178c = 0;
 355
 356         oui_id = getPhy(state, oui_id_reg);
 357         if (oui_id != 0x0243) {
 358                 // non
 359                 return -ENODEV; // Not a IC+ chip.
 360         }
 361         oui_id = getPhy(state, oui_id_reg_178c);
 362         if (oui_id == 0x0243) {
 363                 is_178c = 1;
 364         }
 365
 366         model_no_orig = getPhy(state, model_no_reg);
 367         if (model_no_orig < 0) {
 368                 return -ENODEV;
 369         }
 370         model_no = model_no_orig >> 4; // shift out revision number.
 371         model_no &= 0x3f; // only take the model number (low 6 bits).
 372         if (model_no == IP175A.MODEL_NO) {
 373                 state->regs = &IP175A;
 374         } else if (model_no == IP175C.MODEL_NO) {
 375                 if (is_178c) {
 376                         state->regs = &IP178C;
 377                 } else {
 378                         state->regs = &IP175C;
 379                 }
 380         } else {
 381                 printk(KERN_WARNING "ip175c: Found an unknown IC+ switch with model number %02Xh.\n", model_no_orig);
 382                 return -EPERM;
 383         }
 384         return 0;
 385 }
 386
 387 /** Get only the vlan and router flags on the router **/
 388 static int get_flags(struct ip175c_state *state)
 389 {
 390         int val;
 391
 392         state->router_mode = 0;
 393         state->vlan_enabled = -1; // hack
 394         state->num_vlans = 0;
 395
 396         if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
 397                 return 0; // not an error if it doesn't support enable vlan.
 398         }
 399
 400         val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
 401         if (val < 0) {
 402                 return val;
 403         }
 404         if (state->regs->ROUTER_EN_BIT >= 0)
 405                 state->router_mode = ((val>>state->regs->ROUTER_EN_BIT) & 1);
 406
 407         if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
 408                 state->num_vlans = (val >> state->regs->NUMLAN_GROUPS_BIT);
 409                 state->num_vlans &= (state->regs->NUMLAN_GROUPS_MAX-1);
 410                 state->num_vlans+=1; // does not include WAN.
 411         }
 412
 413         val = getPhy(state, state->regs->VLAN_CONTROL_REG);
 414         if (val < 0) {
 415                 return 0;
 416         }
 417         if (state->regs->TAG_VLAN_BIT >= 0)
 418                 state->vlan_enabled = ((val>>state->regs->TAG_VLAN_BIT) & 1);
 419
 420         return  0;
 421 }
 422
 423 /** Get all state variables for VLAN mappings and port-based tagging **/
 424 static int get_state(struct ip175c_state *state)
 425 {
 426         int i, j;
 427         int ret;
 428         ret = get_flags(state);
 429         if (ret < 0) {
 430                 return ret;
 431         }
 432         GET_PORT_BITS(state, state->remove_tag,
 433                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 434         GET_PORT_BITS(state, state->add_tag,
 435                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 436
 437         if (state->vlan_enabled == -1) {
 438                 // not sure how to get this...
 439                 state->vlan_enabled = (state->remove_tag || state->add_tag);
 440         }
 441
 442         if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
 443         for (j=0; j<MAX_PORTS; j++) {
 444                 state->ports[j].shareports = 0; // initialize them in case.
 445         }
 446         for (j=0; j<state->regs->NUM_PORTS; j++) {
 447                 reg addr;
 448                 const bitnum *bit_lookup = (j%2==0)?
 449                         state->regs->VLAN_LOOKUP_EVEN_BIT:
 450                         state->regs->VLAN_LOOKUP_ODD_BIT;
 451                 addr = state->regs->VLAN_LOOKUP_REG;
 452                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 453                         addr.m += j;
 454                 } else {
 455                         switch (j) {
 456                         case 0:
 457                         case 1:
 458                                 break;
 459                         case 2:
 460                         case 3:
 461                                 addr.m+=1;
 462                                 break;
 463                         case 4:
 464                                 addr.m+=2;
 465                                 break;
 466                         case 5:
 467                                 addr = state->regs->VLAN_LOOKUP_REG_5;
 468                                 break;
 469                         }
 470                 }
 471
 472                 if (REG_SUPP(addr)) {
 473                         GET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
 474                 }
 475         }
 476         } else {
 477                 for (j=0; j<MAX_PORTS; j++) {
 478                         state->ports[j].shareports = 0xff;
 479                 }
 480         }
 481
 482         for (i=0; i<MAX_PORTS; i++) {
 483                 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
 484                         int val = getPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i]);
 485                         if (val < 0) {
 486                                 return val;
 487                         }
 488                         state->ports[i].pvid = val;
 489                 } else {
 490                         state->ports[i].pvid = 0;
 491                 }
 492         }
 493
 494         if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
 495                 for (j=0; j<MAX_VLANS; j++) {
 496                         reg addr = state->regs->TAG_VLAN_MASK_REG;
 497                         const bitnum *bit_lookup = (j%2==0)?
 498                                 state->regs->TAG_VLAN_MASK_EVEN_BIT:
 499                                 state->regs->TAG_VLAN_MASK_ODD_BIT;
 500                         if (state->regs->SIMPLE_VLAN_REGISTERS) {
 501                                 addr.m += j;
 502                         } else {
 503                                 addr.m += j/2;
 504                         }
 505                         GET_PORT_BITS(state, state->vlan_ports[j], addr, bit_lookup);
 506                 }
 507         } else {
 508                 for (j=0; j<MAX_VLANS; j++) {
 509                         state->vlan_ports[j] = 0;
 510                         for (i=0; i<state->regs->NUM_PORTS; i++) {
 511                                 if ((state->ports[i].pvid == j) ||
 512                                                 (state->ports[i].pvid == 0)) {
 513                                         state->vlan_ports[j] |= (1<<i);
 514                                 }
 515                         }
 516                 }
 517         }
 518
 519         return 0;
 520 }
 521
 522 /** Only update vlan and router flags in the switch **/
 523 static int update_flags(struct ip175c_state *state)
 524 {
 525         int val;
 526
 527         if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
 528                 return 0;
 529         }
 530
 531         val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
 532         if (val < 0) {
 533                 return val;
 534         }
 535         if (state->regs->ROUTER_EN_BIT >= 0) {
 536                 if (state->router_mode) {
 537                         val |= (1<<state->regs->ROUTER_EN_BIT);
 538                 } else {
 539                         val &= (~(1<<state->regs->ROUTER_EN_BIT));
 540                 }
 541         }
 542         if (state->regs->TAG_VLAN_BIT >= 0) {
 543                 if (state->vlan_enabled) {
 544                         val |= (1<<state->regs->TAG_VLAN_BIT);
 545                 } else {
 546                         val &= (~(1<<state->regs->TAG_VLAN_BIT));
 547                 }
 548         }
 549         if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
 550                 val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
 551                 if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
 552                         val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
 553                 } else if (state->num_vlans >= 1) {
 554                         val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
 555                 }
 556         }
 557         return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
 558 }
 559
 560 /** Update all VLAN and port state.  Usually you should call "correct_vlan_state" first. **/
 561 static int update_state(struct ip175c_state *state)
 562 {
 563         int j;
 564         int i;
 565         SET_PORT_BITS(state, state->add_tag,
 566                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 567         SET_PORT_BITS(state, state->remove_tag,
 568                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 569
 570         if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
 571         for (j=0; j<state->regs->NUM_PORTS; j++) {
 572                 reg addr;
 573                 const bitnum *bit_lookup = (j%2==0)?
 574                         state->regs->VLAN_LOOKUP_EVEN_BIT:
 575                         state->regs->VLAN_LOOKUP_ODD_BIT;
 576
 577                 // duplicate code -- sorry
 578                 addr = state->regs->VLAN_LOOKUP_REG;
 579                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 580                         addr.m += j;
 581                 } else {
 582                         switch (j) {
 583                         case 0:
 584                         case 1:
 585                                 break;
 586                         case 2:
 587                         case 3:
 588                                 addr.m+=1;
 589                                 break;
 590                         case 4:
 591                                 addr.m+=2;
 592                                 break;
 593                         case 5:
 594                                 addr = state->regs->VLAN_LOOKUP_REG_5;
 595                                 break;
 596                         default:
 597                                 addr.m = -1; // shouldn't get here, but...
 598                                 break;
 599                         }
 600                 }
 601                 //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
 602                 if (REG_SUPP(addr)) {
 603                         SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
 604                 }
 605         }
 606         }
 607         if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
 608         for (j=0; j<MAX_VLANS; j++) {
 609                 reg addr = state->regs->TAG_VLAN_MASK_REG;
 610                 const bitnum *bit_lookup = (j%2==0)?
 611                         state->regs->TAG_VLAN_MASK_EVEN_BIT:
 612                         state->regs->TAG_VLAN_MASK_ODD_BIT;
 613                 unsigned int vlan_mask;
 614                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 615                         addr.m += j;
 616                 } else {
 617                         addr.m += j/2;
 618                 }
 619                 vlan_mask = state->vlan_ports[j];
 620                 SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
 621         }
 622         }
 623
 624         for (i=0; i<MAX_PORTS; i++) {
 625                 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
 626                         int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
 627                                         state->ports[i].pvid);
 628                         if (err < 0) {
 629                                 return err;
 630                         }
 631                 }
 632         }
 633
 634         return update_flags(state);
 635 }
 636
 637 /**
 638  *  Uses only the VLAN port mask and the add tag mask to generate the other fields:
 639  *  which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
 640  */
 641 static void correct_vlan_state(struct ip175c_state *state)
 642 {
 643         int i, j;
 644         state->num_vlans = 0;
 645         for (i=0; i<MAX_VLANS; i++) {
 646                 if (state->vlan_ports[i] != 0) {
 647                         state->num_vlans = i+1; // Hack -- we need to store the "set" vlans somewhere...
 648                 }
 649         }
 650
 651         for (i=0; i<state->regs->NUM_PORTS; i++) {
 652                 unsigned int portmask = (1<<i);
 653                 if (!state->vlan_enabled) {
 654                         // Share with everybody!
 655                         state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
 656                         continue;
 657                 }
 658                 state->ports[i].shareports = portmask;
 659                 for (j=0; j<MAX_VLANS; j++) {
 660                         if (state->vlan_ports[j] & portmask)
 661                                 state->ports[i].shareports |= state->vlan_ports[j];
 662                 }
 663         }
 664         state->remove_tag = ((~state->add_tag) & ((1<<state->regs->NUM_PORTS)-1));
 665 }
 666
 667 static int ip175c_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 668 {
 669         struct ip175c_state *state = dev->priv;
 670         int err;
 671
 672         err = get_state(state); // May be set in get_state.
 673         if (err < 0)
 674                 return err;
 675         val->value.i = state->vlan_enabled;
 676         return 0;
 677 }
 678
 679 static int ip175c_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 680 {
 681         struct ip175c_state *state = dev->priv;
 682         int err;
 683         int enable;
 684         int i;
 685
 686         err = get_state(state);
 687         if (err < 0)
 688                 return err;
 689         enable = val->value.i;
 690
 691         if (state->vlan_enabled == enable) {
 692                 // Do not change any state.
 693                 return 0;
 694         }
 695         state->vlan_enabled = enable;
 696
 697         // Otherwise, if we are switching state, set fields to a known default.
 698         state->remove_tag = 0x0000;
 699         state->add_tag = 0x0000;
 700         for (i = 0; i < MAX_PORTS; i++)
 701                 state->ports[i].shareports = 0xffff;
 702
 703         for (i = 0; i < MAX_VLANS; i++)
 704                 state->vlan_ports[i] = 0x0;
 705
 706         if (state->vlan_enabled) {
 707                 // Updates other fields only based off vlan_ports and add_tag fields.
 708                 // Note that by default, no ports are in any vlans.
 709                 correct_vlan_state(state);
 710         }
 711         // Ensure sane defaults?
 712         return update_state(state);
 713 }
 714
 715 static int ip175c_get_ports(struct switch_dev *dev, struct switch_val *val)
 716 {
 717         struct ip175c_state *state = dev->priv;
 718         int err;
 719         int b;
 720         int ind;
 721         unsigned int ports;
 722
 723         if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
 724                 return -EINVAL;
 725
 726         err = get_state(state);
 727         if (err<0)
 728                 return err;
 729
 730         ports = state->vlan_ports[val->port_vlan];
 731         b = 0;
 732         ind = 0;
 733         while (b < MAX_PORTS) {
 734                 if (ports&1) {
 735                         int istagged = ((state->add_tag >> b) & 1);
 736                         val->value.ports[ind].id = b;
 737                         val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
 738                         ind++;
 739                 }
 740                 b++;
 741                 ports >>= 1;
 742         }
 743         val->len = ind;
 744
 745         return 0;
 746 }
 747
 748 static int ip175c_set_ports(struct switch_dev *dev, struct switch_val *val)
 749 {
 750         struct ip175c_state *state = dev->priv;
 751         int i;
 752         int err;
 753
 754         if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
 755                 return -EINVAL;
 756
 757         err = get_state(state);
 758         if (err < 0)
 759                 return err;
 760
 761         state->vlan_ports[val->port_vlan] = 0;
 762         for (i = 0; i < val->len; i++) {
 763                 int bitmask = (1<<val->value.ports[i].id);
 764                 state->vlan_ports[val->port_vlan] |= bitmask;
 765                 if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
 766                         state->add_tag |= bitmask;
 767                 } else {
 768                         state->add_tag &= (~bitmask);
 769                 }
 770         }
 771
 772         correct_vlan_state(state);
 773         err = update_state(state);
 774
 775         return err;
 776 }
 777
 778 static int ip175c_apply(struct switch_dev *dev)
 779 {
 780         struct ip175c_state *state = dev->priv;
 781         int err;
 782
 783         err = get_flags(state);
 784         if (err < 0)
 785                 return err;
 786
 787         if (REG_SUPP(state->regs->MII_REGISTER_EN)) {
 788                 int val = getPhy(state, state->regs->MII_REGISTER_EN);
 789                 if (val < 0) {
 790                         return val;
 791                 }
 792                 val |= (1<<state->regs->MII_REGISTER_EN_BIT);
 793                 return setPhy(state, state->regs->MII_REGISTER_EN, val);
 794         }
 795         return 0;
 796 }
 797
 798 static int ip175c_reset(struct switch_dev *dev)
 799 {
 800         struct ip175c_state *state = dev->priv;
 801         int i, err;
 802
 803         err = get_flags(state);
 804         if (err < 0)
 805                 return err;
 806
 807         if (REG_SUPP(state->regs->RESET_REG)) {
 808                 err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
 809                 if (err < 0)
 810                         return err;
 811                 err = getPhy(state, state->regs->RESET_REG);
 812
 813                 /*
 814                  *  Data sheet specifies reset period to be 2 msec.
 815                  *  (I don't see any mention of the 2ms delay in the IP178C spec, only
 816                  *  in IP175C, but it can't hurt.)
 817                  */
 818                 mdelay(2);
 819         }
 820
 821         if (REG_SUPP(state->regs->MODE_REG)) {
 822                 err = setPhy(state, state->regs->MODE_REG, state->regs->RESET_VAL);
 823                 if (err < 0)
 824                         return err;
 825                 err = getPhy(state, state->regs->MODE_REG);
 826         }
 827
 828         /* reset switch ports */
 829         for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
 830                 err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
 831                 if (err < 0)
 832                         return err;
 833         }
 834
 835         return 0;
 836 }
 837
 838 static int ip175c_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 839 {
 840         struct ip175c_state *state = dev->priv;
 841         int err;
 842
 843         err = get_state(state);
 844         if (err < 0)
 845                 return err;
 846
 847         if (state->add_tag & (1<<val->port_vlan)) {
 848                 if (state->remove_tag & (1<<val->port_vlan))
 849                         val->value.i = 3; // shouldn't ever happen.
 850                 else
 851                         val->value.i = 1;
 852         } else {
 853                 if (state->remove_tag & (1<<val->port_vlan))
 854                         val->value.i = 0;
 855                 else
 856                         val->value.i = 2;
 857         }
 858         return 0;
 859 }
 860
 861 static int ip175c_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 862 {
 863         struct ip175c_state *state = dev->priv;
 864         int err;
 865
 866         err = get_state(state);
 867         if (err < 0)
 868                 return err;
 869
 870         state->add_tag &= ~(1<<val->port_vlan);
 871         state->remove_tag &= ~(1<<val->port_vlan);
 872
 873         if (val->value.i == 0)
 874                 state->remove_tag |= (1<<val->port_vlan);
 875         if (val->value.i == 1)
 876                 state->add_tag |= (1<<val->port_vlan);
 877
 878         SET_PORT_BITS(state, state->add_tag,
 879                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 880         SET_PORT_BITS(state, state->remove_tag,
 881                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 882
 883         return err;
 884 }
 885
 886 /** Get the current phy address */
 887 static int ip175c_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 888 {
 889         struct ip175c_state *state = dev->priv;
 890
 891         val->value.i = state->proc_mii.p;
 892         return 0;
 893 }
 894
 895 /** Set a new phy address for low level access to registers */
 896 static int ip175c_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 897 {
 898         struct ip175c_state *state = dev->priv;
 899         int new_reg = val->value.i;
 900
 901         if (new_reg < 0 || new_reg > 31)
 902                 state->proc_mii.p = (u16)-1;
 903         else
 904                 state->proc_mii.p = (u16)new_reg;
 905         return 0;
 906 }
 907
 908 /** Get the current register number */
 909 static int ip175c_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 910 {
 911         struct ip175c_state *state = dev->priv;
 912
 913         val->value.i = state->proc_mii.m;
 914         return 0;
 915 }
 916
 917 /** Set a new register address for low level access to registers */
 918 static int ip175c_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 919 {
 920         struct ip175c_state *state = dev->priv;
 921         int new_reg = val->value.i;
 922
 923         if (new_reg < 0 || new_reg > 31)
 924                 state->proc_mii.m = (u16)-1;
 925         else
 926                 state->proc_mii.m = (u16)new_reg;
 927         return 0;
 928 }
 929
 930 /** Get the register content of state->proc_mii */
 931 static int ip175c_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 932 {
 933         struct ip175c_state *state = dev->priv;
 934         int retval = -EINVAL;
 935         if (REG_SUPP(state->proc_mii))
 936                 retval = getPhy(state, state->proc_mii);
 937
 938         if (retval < 0) {
 939                 return retval;
 940         } else {
 941                 val->value.i = retval;
 942                 return 0;
 943         }
 944 }
 945
 946 /** Write a value to the register defined by phy/reg above */
 947 static int ip175c_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 948 {
 949         struct ip175c_state *state = dev->priv;
 950         int myval, err = 0;
 951
 952         myval = val->value.i;
 953         if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
 954                 err = setPhy(state, state->proc_mii, (u16)myval);
 955         }
 956         return err;
 957 }
 958
 959 static int ip175c_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 960 {
 961         struct ip175c_state *state = dev->priv;
 962         val->value.s = state->regs->NAME; // Just a const pointer, won't be freed by swconfig.
 963         return 0;
 964 }
 965
 966 static int ip175c_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 967 {
 968         struct ip175c_state *state = dev->priv;
 969         int nr = val->port_vlan;
 970         int ctrl;
 971         int autoneg;
 972         int speed;
 973         if (val->value.i == 100) {
 974                 speed = 1;
 975                 autoneg = 0;
 976         } else if (val->value.i == 10) {
 977                 speed = 0;
 978                 autoneg = 0;
 979         } else {
 980                 autoneg = 1;
 981                 speed = 1;
 982         }
 983
 984         /* Can't set speed for cpu port */
 985         if (nr == state->regs->CPU_PORT)
 986                 return -EINVAL;
 987
 988         if (nr >= dev->ports || nr < 0)
 989                 return -EINVAL;
 990
 991         ctrl = ip_phy_read(state, nr, 0);
 992         if (ctrl < 0)
 993                 return -EIO;
 994
 995         ctrl &= (~(1<<12));
 996         ctrl &= (~(1<<13));
 997         ctrl |= (autoneg<<12);
 998         ctrl |= (speed<<13);
 999
1000         return ip_phy_write(state, nr, 0, ctrl);
1001 }
1002
1003 static int ip175c_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1004 {
1005         struct ip175c_state *state = dev->priv;
1006         int nr = val->port_vlan;
1007         int speed, status;
1008
1009         if (nr == state->regs->CPU_PORT) {
1010                 val->value.i = 100;
1011                 return 0;
1012         }
1013
1014         if (nr >= dev->ports || nr < 0)
1015                 return -EINVAL;
1016
1017         status = ip_phy_read(state, nr, 1);
1018         speed = ip_phy_read(state, nr, 18);
1019         if (status < 0 || speed < 0)
1020                 return -EIO;
1021
1022         if (status & 4)
1023                 val->value.i = ((speed & (1<<11)) ? 100 : 10);
1024         else
1025                 val->value.i = 0;
1026
1027         return 0;
1028 }
1029
1030 static int ip175c_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1031 {
1032         struct ip175c_state *state = dev->priv;
1033         int ctrl, speed, status;
1034         int nr = val->port_vlan;
1035         int len;
1036         char *buf = state->buf; // fixed-length at 80.
1037
1038         if (nr == state->regs->CPU_PORT) {
1039                 sprintf(buf, "up, 100 Mbps, cpu port");
1040                 val->value.s = buf;
1041                 return 0;
1042         }
1043
1044         if (nr >= dev->ports || nr < 0)
1045                 return -EINVAL;
1046
1047         ctrl = ip_phy_read(state, nr, 0);
1048         status = ip_phy_read(state, nr, 1);
1049         speed = ip_phy_read(state, nr, 18);
1050         if (ctrl < 0 || status < 0 || speed < 0)
1051                 return -EIO;
1052
1053         if (status & 4)
1054                 len = sprintf(buf, "up, %d Mbps, %s duplex",
1055                         ((speed & (1<<11)) ? 100 : 10),
1056                         ((speed & (1<<10)) ? "full" : "half"));
1057         else
1058                 len = sprintf(buf, "down");
1059
1060         if (ctrl & (1<<12)) {
1061                 len += sprintf(buf+len, ", auto-negotiate");
1062                 if (!(status & (1<<5)))
1063                         len += sprintf(buf+len, " (in progress)");
1064         } else {
1065                 len += sprintf(buf+len, ", fixed speed (%d)",
1066                         ((ctrl & (1<<13)) ? 100 : 10));
1067         }
1068
1069         buf[len] = '\0';
1070         val->value.s = buf;
1071         return 0;
1072 }
1073
1074 static int ip175c_get_pvid(struct switch_dev *dev, int port, int *val)
1075 {
1076         struct ip175c_state *state = dev->priv;
1077
1078         *val = state->ports[port].pvid;
1079         return 0;
1080 }
1081
1082 static int ip175c_set_pvid(struct switch_dev *dev, int port, int val)
1083 {
1084         struct ip175c_state *state = dev->priv;
1085
1086         state->ports[port].pvid = val;
1087
1088         if (!REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[port]))
1089                 return 0;
1090
1091         return setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[port], val);
1092 }
1093
1094
1095 enum Ports {
1096         IP175C_PORT_STATUS,
1097         IP175C_PORT_LINK,
1098         IP175C_PORT_TAGGED,
1099         IP175C_PORT_PVID,
1100 };
1101
1102 enum Globals {
1103         IP175C_ENABLE_VLAN,
1104         IP175C_GET_NAME,
1105         IP175C_REGISTER_PHY,
1106         IP175C_REGISTER_MII,
1107         IP175C_REGISTER_VALUE,
1108         IP175C_REGISTER_ERRNO,
1109 };
1110
1111 static const struct switch_attr ip175c_global[] = {
1112         [IP175C_ENABLE_VLAN] = {
1113                 .id = IP175C_ENABLE_VLAN,
1114                 .type = SWITCH_TYPE_INT,
1115                 .name  = "enable_vlan",
1116                 .description = "Flag to enable or disable VLANs and tagging",
1117                 .get  = ip175c_get_enable_vlan,
1118                 .set = ip175c_set_enable_vlan,
1119         },
1120         [IP175C_GET_NAME] = {
1121                 .id = IP175C_GET_NAME,
1122                 .type = SWITCH_TYPE_STRING,
1123                 .description = "Returns the type of IC+ chip.",
1124                 .name  = "name",
1125                 .get  = ip175c_read_name,
1126                 .set = NULL,
1127         },
1128         /* jal: added for low level debugging etc. */
1129         [IP175C_REGISTER_PHY] = {
1130                 .id = IP175C_REGISTER_PHY,
1131                 .type = SWITCH_TYPE_INT,
1132                 .description = "Direct register access: set PHY (0-4, or 29,30,31)",
1133                 .name  = "phy",
1134                 .get  = ip175c_get_phy,
1135                 .set = ip175c_set_phy,
1136         },
1137         [IP175C_REGISTER_MII] = {
1138                 .id = IP175C_REGISTER_MII,
1139                 .type = SWITCH_TYPE_INT,
1140                 .description = "Direct register access: set MII register number (0-31)",
1141                 .name  = "reg",
1142                 .get  = ip175c_get_reg,
1143                 .set = ip175c_set_reg,
1144         },
1145         [IP175C_REGISTER_VALUE] = {
1146                 .id = IP175C_REGISTER_VALUE,
1147                 .type = SWITCH_TYPE_INT,
1148                 .description = "Direct register access: read/write to register (0-65535)",
1149                 .name  = "val",
1150                 .get  = ip175c_get_val,
1151                 .set = ip175c_set_val,
1152         },
1153 };
1154
1155 static const struct switch_attr ip175c_vlan[] = {
1156 };
1157
1158 static const struct switch_attr ip175c_port[] = {
1159         [IP175C_PORT_STATUS] = {
1160                 .id = IP175C_PORT_STATUS,
1161                 .type = SWITCH_TYPE_STRING,
1162                 .description = "Returns Detailed port status",
1163                 .name  = "status",
1164                 .get  = ip175c_get_port_status,
1165                 .set = NULL,
1166         },
1167         [IP175C_PORT_LINK] = {
1168                 .id = IP175C_PORT_LINK,
1169                 .type = SWITCH_TYPE_INT,
1170                 .description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1171                 .name  = "link",
1172                 .get  = ip175c_get_port_speed,
1173                 .set = ip175c_set_port_speed,
1174         },
1175         [IP175C_PORT_TAGGED] = {
1176                 .id = IP175C_PORT_LINK,
1177                 .type = SWITCH_TYPE_INT,
1178                 .description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1179                 .name  = "tagged",
1180                 .get  = ip175c_get_tagged,
1181                 .set = ip175c_set_tagged,
1182         },
1183 };
1184
1185 static int ip175c_probe(struct phy_device *pdev)
1186 {
1187         struct ip175c_state *state;
1188         struct switch_dev *dev;
1189         int err;
1190
1191         /* We only attach to PHY 0, but use all available PHYs */
1192         if (pdev->addr != 0)
1193                 return -ENODEV;
1194
1195         state = kzalloc(sizeof(*state), GFP_KERNEL);
1196         if (!state)
1197                 return -ENOMEM;
1198
1199         dev = &state->dev;
1200         dev->attr_global.attr = ip175c_global;
1201         dev->attr_global.n_attr = ARRAY_SIZE(ip175c_global);
1202         dev->attr_port.attr = ip175c_port;
1203         dev->attr_port.n_attr = ARRAY_SIZE(ip175c_port);
1204         dev->attr_vlan.attr = ip175c_vlan;
1205         dev->attr_vlan.n_attr = ARRAY_SIZE(ip175c_vlan);
1206
1207         dev->get_port_pvid = ip175c_get_pvid;
1208         dev->set_port_pvid = ip175c_set_pvid;
1209         dev->get_vlan_ports = ip175c_get_ports;
1210         dev->set_vlan_ports = ip175c_set_ports;
1211         dev->apply_config = ip175c_apply;
1212         dev->reset_switch = ip175c_reset;
1213
1214         dev->priv = state;
1215         pdev->priv = state;
1216         state->mii_bus = pdev->bus;
1217
1218         err = get_model(state);
1219         if (err < 0)
1220                 goto error;
1221
1222         dev->vlans = MAX_VLANS;
1223         dev->cpu_port = state->regs->CPU_PORT;
1224         dev->ports = state->regs->NUM_PORTS;
1225         dev->name = state->regs->NAME;
1226
1227         return 0;
1228
1229 error:
1230         kfree(state);
1231         return err;
1232 }
1233
1234 static int ip175c_config_init(struct phy_device *pdev)
1235 {
1236         struct ip175c_state *state = pdev->priv;
1237         struct net_device *dev = pdev->attached_dev;
1238         int err;
1239
1240         pdev->irq = PHY_IGNORE_INTERRUPT;
1241         err = register_switch(&state->dev, dev);
1242         if (err < 0)
1243                 return err;
1244
1245         ip175c_reset(&state->dev);
1246
1247         state->registered = true;
1248         netif_carrier_on(pdev->attached_dev);
1249
1250         return 0;
1251 }
1252
1253 static void ip175c_remove(struct phy_device *pdev)
1254 {
1255         struct ip175c_state *state = pdev->priv;
1256
1257         if (state->registered)
1258                 unregister_switch(&state->dev);
1259         kfree(state);
1260 }
1261
1262 static int ip175c_config_aneg(struct phy_device *pdev)
1263 {
1264         return 0;
1265 }
1266
1267 static int ip175c_read_status(struct phy_device *pdev)
1268 {
1269         pdev->speed = SPEED_100;
1270         pdev->duplex = DUPLEX_FULL;
1271         pdev->pause = pdev->asym_pause = 0;
1272         return 0;
1273 }
1274
1275 static struct phy_driver ip175c_driver = {
1276         .name           = "IC+ IP175C",
1277         .phy_id         = 0x02430d80,
1278         .phy_id_mask    = 0x0ffffff0,
1279         .features       = PHY_BASIC_FEATURES,
1280         .probe          = ip175c_probe,
1281         .remove         = ip175c_remove,
1282         .config_init    = ip175c_config_init,
1283         .config_aneg    = ip175c_config_aneg,
1284         .read_status    = ip175c_read_status,
1285         .driver         = { .owner = THIS_MODULE },
1286 };
1287
1288 static struct phy_driver ip175a_driver = {
1289         .name           = "IC+ IP175A",
1290         .phy_id         = 0x02430c50,
1291         .phy_id_mask    = 0x0ffffff0,
1292         .features       = PHY_BASIC_FEATURES,
1293         .probe          = ip175c_probe,
1294         .remove         = ip175c_remove,
1295         .config_init    = ip175c_config_init,
1296         .config_aneg    = ip175c_config_aneg,
1297         .read_status    = ip175c_read_status,
1298         .driver         = { .owner = THIS_MODULE },
1299 };
1300
1301
1302 int __init ip175c_init(void)
1303 {
1304         int ret;
1305
1306         ret = phy_driver_register(&ip175a_driver);
1307         if (ret < 0)
1308                 return ret;
1309
1310         return phy_driver_register(&ip175c_driver);
1311 }
1312
1313 void __exit ip175c_exit(void)
1314 {
1315         phy_driver_unregister(&ip175c_driver);
1316         phy_driver_unregister(&ip175a_driver);
1317 }
1318
1319 MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1320 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1321 MODULE_LICENSE("GPL");
1322
1323 module_init(ip175c_init);
1324 module_exit(ip175c_exit);