util/superiotool/smsc.c

   1 /*
   2  * This file is part of the superiotool project.
   3  *
   4  * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include "superiotool.h"
  22
  23 #define DEVICE_ID_REG_OLD       0x0d
  24 #define DEVICE_REV_REG_OLD      0x0e
  25
  26 #define DEVICE_ID_REG           0x20
  27 #define DEVICE_REV_REG          0x21
  28
  29 static const struct superio_registers reg_table[] = {
  30         /* The following Super I/Os use the 0x20/0x21 ID registers. */
  31         {0x0e, "LPC47N252", {   /* From sensors-detect */
  32                 {EOT}}},
  33         {0x14, "LPC47M172", {
  34                 {EOT}}},
  35         {0x40, "FDC37C67x", {   /* E.g. FDC37C672. Chiprev: 0x01 */
  36                 {EOT}}},
  37         {0x42, "FDC37B80x/FDC37M707", {
  38                 {EOT}}},
  39         {0x44, "FDC37B78x", {
  40                 {NOLDN, NULL,
  41                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x28,
  42                          0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
  43                         {0x03,NANA,0x44,0x00,0x00,0x00,0x04,MISC,MISC,0x00,
  44                          NANA,NANA,NANA,NANA,NANA,EOT}},
  45                 {0x0, "Floppy",
  46                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,0xf5,
  47                          EOT},
  48                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,0x00,
  49                          EOT}},
  50                 {0x3, "Parallel port",
  51                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
  52                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
  53                 {0x4, "COM1",
  54                         {0x30,0x60,0x61,0x70,0xf0,EOT},
  55                         {0x00,0x00,0x00,0x00,0x00,EOT}},
  56                 {0x5, "COM2",
  57                         {0x30,0x60,0x61,0x62,0x63,0x70,0x74,0xf0,0xf1,0xf2,
  58                          EOT},
  59                         {NANA,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x02,0x03,
  60                          EOT}},
  61                 {0x6, "Real-time clock (RTC)",
  62                         {0x30,0x62,0x63,0x70,0xf0,EOT},
  63                         {0x00,0x00,0x70,0x00,0x00,EOT}},
  64                 {0x7, "Keyboard",
  65                         {0x30,0x70,0x72,0xf0,EOT},
  66                         {0x00,0x00,0x00,0x00,EOT}},
  67                 {0x8, "Aux I/O",
  68                         {0x30,0xb0,0xb1,0xb2,0xb3,0xb8,0xc0,0xc1,0xc2,0xc3,
  69                          0xc4,0xc5,0xc6,0xc8,0xca,0xcb,0xcc,0xd0,0xd1,0xd2,
  70                          0xd3,0xd4,0xd5,0xd6,0xd7,0xe0,0xe1,0xe2,0xe3,0xe4,
  71                          0xe5,0xe6,0xe7,0xef,0xf0,0xf1,0xf2,0xf3,0xf4,0xf6,
  72                          0xf9,0xfa,EOT},
  73                         {0x00,NANA,NANA,NANA,NANA,NANA,NANA,0x01,NANA,NANA,
  74                          NANA,0x00,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,
  75                          NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,
  76                          NANA,NANA,NANA,NANA,NANA,0x00,0x00,0x00,0x00,NANA,
  77                          NANA,NANA,EOT}},
  78                 {0xa, "ACPI",
  79                         {0x30,0x60,0x61,0x70,0xf0,EOT},
  80                         {0x00,0x00,0x00,NANA,NANA,EOT}},
  81                 {EOT}}},
  82         {0x47, "FDC37M60x", {   /* TODO: Not yet in sensors-detect */
  83                 {EOT}}},
  84         {0x4c, "FDC37B72x", {
  85                 {NOLDN, NULL,
  86                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x28,
  87                          0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
  88                         {0x03,NANA,0x4c,0x00,0x00,0x00,0x04,MISC,MISC,0x00,
  89                          NANA,NANA,NANA,NANA,NANA,EOT}},
  90                 {0x0, "Floppy",
  91                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,0xf5,
  92                          EOT},
  93                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,0x00,
  94                          EOT}},
  95                 {0x3, "Parallel port",
  96                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
  97                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
  98                 {0x4, "COM1",
  99                         {0x30,0x60,0x61,0x70,0xf0,EOT},
 100                         {0x00,0x00,0x00,0x00,0x00,EOT}},
 101                 {0x5, "COM2",
 102                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
 103                         {NANA,0x00,0x00,0x00,0x00,0x02,0x03,EOT}},
 104                 {0x7, "Keyboard",
 105                         {0x30,0x70,0x72,0xf0,EOT},
 106                         {0x00,0x00,0x00,0x00,EOT}},
 107                 {0x8, "Aux I/O",
 108                         {0x30,0xb0,0xb1,0xb2,0xb3,0xb8,0xc0,0xc1,0xc2,0xc3,
 109                          0xc4,0xc5,0xc6,0xc8,0xca,0xcb,0xcc,0xd0,0xd1,0xd2,
 110                          0xd3,0xd4,0xd5,0xd6,0xd7,0xe0,0xe1,0xe2,0xe3,0xe4,
 111                          0xe5,0xe6,0xe7,0xef,0xf0,0xf1,0xf2,0xf3,0xf4,0xf6,
 112                          0xf9,0xfa,EOT},
 113                         {0x00,NANA,NANA,NANA,NANA,NANA,0x00,0x01,NANA,NANA,
 114                          NANA,0x00,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,
 115                          NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,
 116                          NANA,NANA,NANA,NANA,NANA,0x00,0x00,0x00,MISC,NANA,
 117                          NANA,NANA,EOT}},
 118                 {0xa, "ACPI",
 119                         {0x30,0x60,0x61,0x70,0xf0,EOT},
 120                         {0x00,0x00,0x00,NANA,NANA,EOT}},
 121                 {EOT}}},
 122         {0x4d, "FDC37M81x", {
 123                 {NOLDN, NULL,
 124                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x2b,
 125                          0x2c,0x2d,0x2e,0x2f,EOT},
 126                         {0x03,0x00,0x4d,NANA,0x00,0x00,0x04,MISC,MISC,NANA,
 127                          NANA,NANA,NANA,NANA,EOT}},
 128                 {0x0, "Floppy",
 129                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,
 130                          0xf5,EOT},
 131                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,
 132                          0x00,EOT}},
 133                 {0x3, "Parallel port",
 134                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
 135                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
 136                 {0x4, "COM1",
 137                         {0x30,0x60,0x61,0x70,0xf0,EOT},
 138                         {0x00,0x00,0x00,0x00,0x00,EOT}},
 139                 {0x5, "COM2",
 140                         {0x30,0x60,0x61,0x62,0x63,0x70,0xf0,0xf1,0xf2,EOT},
 141                         {0x00,0x00,0x00,RSVD,RSVD,0x00,0x00,0x02,0x03,EOT}},
 142                 {0x7, "Keyboard",
 143                         {0x30,0x70,0x72,0xf0,EOT},
 144                         {0x00,0x00,0x00,0x00,EOT}},
 145                 {0x8, "Aux I/O",
 146                         /* Only 0xf6 existing (and reserved) or 0xf6..0xfb? */
 147                         {0x30,0xb4,0xb5,0xb6,0xb7,0xc0,0xc1,0xc2,0xc3,0xc4,
 148                          0xc5,0xc6,0xc7,0xc8,0xf1,0xf2,0xf3,0xf4,0xf6,0xf7,
 149                          0xf8,0xf9,0xfa,0xfb,EOT},
 150                         {0x00,NANA,NANA,NANA,NANA,0x02,0x01,NANA,NANA,NANA,
 151                          NANA,NANA,NANA,NANA,0x00,0x00,0x00,0x00,RSVD,RSVD,
 152                          RSVD,RSVD,RSVD,RSVD,EOT}},
 153                 {EOT}}},
 154         {0x51, "LPC47B27x", {
 155                 {EOT}}},
 156         {0x52, "LPC47B37x", {
 157                 {EOT}}},
 158         {0x54, "LPC47U33x", {
 159                 {EOT}}},
 160         {0x56, "LPC47B34x", {
 161                 {EOT}}},
 162         {0x57, "LPC47S42x", {
 163                 {EOT}}},
 164         {0x59, "LPC47M10x/112/13x", {
 165                 {NOLDN, NULL,
 166                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x28,
 167                          0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
 168                         {RSVD,0x00,0x59,NANA,0x00,0x00,0x44,MISC,MISC,RSVD,
 169                          NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
 170                 {0x0, "Floppy",
 171                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,
 172                          0xf5,EOT},
 173                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,
 174                          0x00,EOT}},
 175                 {0x3, "Parallel port",
 176                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
 177                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
 178                 {0x4, "COM1",
 179                         {0x30,0x60,0x61,0x70,0xf0,EOT},
 180                         {0x00,0x00,0x00,0x00,0x00,EOT}},
 181                 {0x5, "COM2",
 182                         {0x30,0x60,0x61,0x62,0x63,0x70,0x74,0xf0,0xf1,
 183                          0xf2,EOT},
 184                         {NANA,0x00,0x00,RSVD,RSVD,0x00,RSVD,0x00,0x02,
 185                          0x03,EOT}},
 186                 {0x7, "Keyboard",
 187                         {0x30,0x70,0x72,0xf0,EOT},
 188                         {0x00,0x00,0x00,0x00,EOT}},
 189                 {0x9, "Game port",
 190                         {0x30,0x60,0x61,EOT},
 191                         {0x00,0x00,0x00,EOT}},
 192                 {0xa, "Power Management Events (PME)",
 193                         {0x30,0x60,0x61,0xf0,0xf1,EOT},
 194                         {0x00,0x00,0x00,NANA,RSVD,EOT}},
 195                 {0xb, "MPU-401",
 196                         {0x30,0x60,0x61,0x70,EOT},
 197                         {0x00,0x03,0x30,0x05,EOT}},
 198                 {EOT}}},
 199         {0x5d, "LPC47B357", {   /* From sensors-detect (no datasheet) */
 200                 {EOT}}},
 201         {0x5f, "LPC47M14x", {
 202                 {EOT}}},
 203         {0x60, "LPC47M15x/192/997", {
 204                 {EOT}}},
 205         {0x62, "LPC47S45x", {
 206                 {EOT}}},
 207         {0x6b, "LPC47M292", {   /* From sensors-detect */
 208                 {EOT}}},
 209         {0x6e, "LPC47B387", {   /* TODO: Not yet in sensors-detect */
 210                 /* Found in the HP Compaq Business Desktop d530 Series */
 211                 /* http://thread.gmane.org/gmane.linux.bios/26648 */
 212                 /* We cannot find a public datasheet for this Super I/O. */
 213                 {EOT}}},
 214         {0x6f, "LPC47B397", {
 215                 {EOT}}},
 216         {0x74, "LPC47M182", {
 217                 {EOT}}},
 218         {0x76, "LPC47M584", {   /* From sensors-detect (no datasheet) */
 219                 {EOT}}},
 220         {0x77, "A8000", {       /* ASUS A8000, a rebranded DME1737(?) */
 221                 {NOLDN, NULL,
 222                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x28,
 223                          0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
 224                         {RSVD,0x00,0x77,NANA,0x00,RSVD,0x44,MISC,MISC,RSVD,
 225                          NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
 226                 {0x0, "Floppy",
 227                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,
 228                          0xf5,EOT},
 229                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,
 230                          0x00,EOT}},
 231                 {0x3, "Parallel port",
 232                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
 233                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
 234                 {0x4, "COM1",
 235                         {0x30,0x60,0x61,0x70,0xf0,EOT},
 236                         {0x00,0x00,0x00,0x00,0x00,EOT}},
 237                 {0x5, "COM2",
 238                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
 239                         {0x00,0x00,0x00,0x00,0x00,0x02,0x03,EOT}},
 240                 {0x7, "Keyboard",
 241                         {0x30,0x70,0x72,0xf0,EOT},
 242                         {0x00,0x00,0x00,0x00,EOT}},
 243                 {0xa, "Runtime registers",
 244                         {0x30,0x60,0x61,0x62,0x63,0xf0,0xf1,0xf2,EOT},
 245                         {0x00,0x00,0x00,0x00,0x00,NANA,RSVD,0x04,EOT}},
 246                 {EOT}}},
 247         {0x78, "DME1737", {
 248                 {NOLDN, NULL,
 249                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x28,
 250                          0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
 251                         {RSVD,0x00,0x77,NANA,0x00,RSVD,0x44,MISC,MISC,RSVD,
 252                          NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
 253                 {0x0, "Floppy",
 254                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,
 255                          0xf5,EOT},
 256                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,
 257                          0x00,EOT}},
 258                 {0x3, "Parallel port",
 259                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
 260                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
 261                 {0x4, "COM1",
 262                         {0x30,0x60,0x61,0x70,0xf0,EOT},
 263                         {0x00,0x00,0x00,0x00,0x00,EOT}},
 264                 {0x5, "COM2",
 265                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
 266                         {0x00,0x00,0x00,0x00,0x00,0x02,0x03,EOT}},
 267                 {0x7, "Keyboard",
 268                         {0x30,0x70,0x72,0xf0,EOT},
 269                         {0x00,0x00,0x00,0x00,EOT}},
 270                 {0xa, "Runtime registers",
 271                         {0x30,0x60,0x61,0x62,0x63,0xf0,0xf1,0xf2,EOT},
 272                         {0x00,0x00,0x00,0x00,0x00,NANA,RSVD,0x04,EOT}},
 273                 {EOT}}},
 274         {0x79, "SCH5504", {     /* From sensors-detect (no datasheet) */
 275                 {EOT}}},
 276 #if 0
 277         {0x7a, "Unknown", {     /* Found in Toshiba Satellite A80-117. */
 278                 {EOT}}},
 279 #endif
 280         {0x7c, "SCH3112", {
 281                 {EOT}}},
 282         {0x7d, "SCH3114", {
 283                 {EOT}}},
 284         {0x7f, "SCH3116", {
 285                 {EOT}}},
 286         {0x81, "SCH5307", {
 287                 {EOT}}},
 288         {0x85, "SCH5317", {     /* From sensors-detect */
 289                 {EOT}}},
 290         {0x90, "SCH4307", {     /* From sensors-detect */
 291                 {EOT}}},
 292
 293         /* The following Super I/Os use the 0x0d/0x0e ID registers. */
 294         {0x03, "FDC37C669", {
 295                 /* Init: 0x55, 0x55. Exit: 0xaa. Ports: 0x3f0/0x370. */
 296                 /* Chiprev: 0x02. */
 297                 {EOT}}},
 298         {0x04, "FDC37C669FR", { /* TODO: Not yet in sensors-detect. */
 299                 /* Init: 0x55, 0x55. Exit: 0xaa. Ports: 0x3f0/0x370. */
 300                 {EOT}}},
 301         {0x28, "FDC37N769", {
 302                 /* Init: 0x55. Exit: 0xaa. Ports: 0x3f0/0x370. */
 303                 {NOLDN, NULL,
 304                         {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
 305                          0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,
 306                          0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,
 307                          0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
 308                          0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
 309                         {0x28,0x9c,0x88,0x70,0x00,0x00,0xff,0x00,0x00,0x00,
 310                          0x00,0x00,0x02,0x28,NANA,0x00,0x00,0x80,RSVD,RSVD,
 311                          NANA,NANA,NANA,0x03,RSVD,RSVD,RSVD,RSVD,RSVD,RSVD,
 312                          0x80,0x00,0x3c,RSVD,RSVD,0x00,0x00,0x00,0x00,0x00,
 313                          0x00,0x00,RSVD,0x00,0x00,0x03,0x00,0x00,EOT}},
 314                 {EOT}}},
 315         {0x5a, "LPC47N227", {
 316                 /* Init: 0x55. Exit: 0xaa. Ports: 0x2e/0x4e. */
 317                 {NOLDN, NULL,
 318                         {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
 319                          0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,
 320                          0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,
 321                          0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
 322                          0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,0x30,0x31,
 323                          0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,EOT},
 324                         {0x28,0x9c,0x08,0x70,0x00,0x00,0xff,0x00,RSVD,0x00,
 325                          0x00,0x00,0x02,0x5a,NANA,0x00,0x00,0x80,MISC,0x00,
 326                          NANA,NANA,NANA,0x03,RSVD,RSVD,RSVD,RSVD,RSVD,RSVD,
 327                          RSVD,0x00,0x3c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 328                          0x00,0x80,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,
 329                          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,EOT}},
 330                 {EOT}}},
 331         {0x65, "FDC37C665GT/IR", {
 332                 /* Init: 0x55, 0x55. Exit: 0xaa. Port: 0x3f0. */
 333                 /* Chiprev: 0x02 = FDC37C665GT, 0x82 = FDC37C665IR */
 334                 {EOT}}},
 335         {0x66, "FDC37C666GT", {
 336                 /* Init: 0x55, 0x55. Exit: 0xaa. Port: 0x3f0. Chiprev: 0x02. */
 337                 {EOT}}},
 338         {EOT}
 339 };
 340
 341 static void enter_conf_mode_smsc(uint16_t port)
 342 {
 343         /* Some of the SMSC Super I/Os have an 0x55,0x55 init, some only
 344          * require one 0x55. We do 0x55,0x55 for all of them at the moment,
 345          * in the assumption that the extra 0x55 won't hurt the other
 346          * Super I/Os. This is verified to be true on (at least) the FDC37N769.
 347          */
 348         outb(0x55, port);
 349         outb(0x55, port);
 350 }
 351
 352 static void exit_conf_mode_smsc(uint16_t port)
 353 {
 354         outb(0xaa, port);
 355 }
 356
 357 static void probe_idregs_smsc_helper(uint16_t port, uint8_t idreg,
 358                                      uint8_t revreg)
 359 {
 360         uint8_t id, rev;
 361         const char *info = (idreg == 0x20) ? "(idregs=0x20/0x21) "
 362                                            : "(idregs=0x0d/0x0e) ";
 363
 364         probing_for("SMSC", info, port);
 365
 366         enter_conf_mode_smsc(port);
 367
 368         id = regval(port, idreg);
 369         rev = regval(port, revreg);
 370
 371         if (superio_unknown(reg_table, id)) {
 372                 if (verbose)
 373                         printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", id, rev);
 374                 exit_conf_mode_smsc(port);
 375                 return;
 376         }
 377
 378         printf("Found %s %s (id=0x%02x, rev=0x%02x) at 0x%x\n",
 379                (id == 0x77 ? "ASUS" : "SMSC"), get_superio_name(reg_table, id),
 380                id, rev, port);
 381         chip_found = 1;
 382
 383         dump_superio((id == 0x77 ? "ASUS" : "SMSC"), reg_table, port, id);
 384
 385         exit_conf_mode_smsc(port);
 386 }
 387
 388 void probe_idregs_smsc(uint16_t port)
 389 {
 390         probe_idregs_smsc_helper(port, DEVICE_ID_REG, DEVICE_REV_REG);
 391         probe_idregs_smsc_helper(port, DEVICE_ID_REG_OLD, DEVICE_REV_REG_OLD);
 392 }