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 const static struct superio_registers reg_table[] = {
  30         {0x28, "FDC37N769", {
  31                 {NOLDN, NULL,
  32                         {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
  33                          0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,
  34                          0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,
  35                          0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
  36                          0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
  37                         {0x28,0x9c,0x88,0x70,0x00,0x00,0xff,0x00,0x00,0x00,
  38                          0x00,0x00,0x02,0x28,NANA,0x00,0x00,0x80,RSVD,RSVD,
  39                          NANA,NANA,NANA,0x03,RSVD,RSVD,RSVD,RSVD,RSVD,RSVD,
  40                          0x80,0x00,0x3c,RSVD,RSVD,0x00,0x00,0x00,0x00,0x00,
  41                          0x00,0x00,RSVD,0x00,0x00,0x03,0x00,0x00,EOT}},
  42                 {EOT}}},
  43         {0x42, "FDC37B80x", {
  44                 {EOT}}},
  45         {0x44, "FDC37B78x", {
  46                 {EOT}}},
  47         {0x4c, "FDC37B72x", {
  48                 {EOT}}},
  49         {0x4d, "FDC37M81x", {
  50                 {EOT}}},
  51         {0x47, "FDC37M60x", {
  52                 {EOT}}},
  53         {0x51, "LPC47B27x", {
  54                 {EOT}}},
  55         {0x59, "LPC47M10x", {
  56                 {EOT}}},
  57         {0x60, "LPC47M15x", {
  58                 {EOT}}},
  59         {0x62, "LPC47S45x", {
  60                 {EOT}}},
  61         {0x6e, "LPC47B387", {
  62                 /* Found in the HP Compaq Business Desktop d530 Series */
  63                 /* http://thread.gmane.org/gmane.linux.bios/26648 */
  64                 /* We cannot find a public datasheet for this Super I/O. */
  65                 {EOT}}},
  66         {0x6f, "LPC47B397", {
  67                 {EOT}}},
  68         {0x77, "A8000", {       /* ASUS A8000, a rebranded DME1737(?) */
  69                 {NOLDN, NULL,
  70                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x28,
  71                          0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
  72                         {RSVD,0x00,0x77,NANA,0x00,RSVD,0x44,MISC,MISC,RSVD,
  73                          NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
  74                 {0x0, "Floppy",
  75                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,
  76                          0xf5,EOT},
  77                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,
  78                          0x00,EOT}},
  79                 {0x3, "Parallel port",
  80                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
  81                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
  82                 {0x4, "COM1",
  83                         {0x30,0x60,0x61,0x70,0xf0,EOT},
  84                         {0x00,0x00,0x00,0x00,0x00,EOT}},
  85                 {0x5, "COM2",
  86                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  87                         {0x00,0x00,0x00,0x00,0x00,0x02,0x03,EOT}},
  88                 {0x7, "Keyboard",
  89                         {0x30,0x70,0x72,0xf0,EOT},
  90                         {0x00,0x00,0x00,0x00,EOT}},
  91                 {0xa, "Runtime registers",
  92                         {0x30,0x60,0x61,0x62,0x63,0xf0,0xf1,0xf2,EOT},
  93                         {0x00,0x00,0x00,0x00,0x00,NANA,RSVD,0x04,EOT}},
  94                 {EOT}}},
  95         {0x78, "DME1737", {
  96                 {NOLDN, NULL,
  97                         {0x03,0x07,0x20,0x21,0x22,0x23,0x24,0x26,0x27,0x28,
  98                          0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
  99                         {RSVD,0x00,0x77,NANA,0x00,RSVD,0x44,MISC,MISC,RSVD,
 100                          NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
 101                 {0x0, "Floppy",
 102                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,
 103                          0xf5,EOT},
 104                         {0x00,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,
 105                          0x00,EOT}},
 106                 {0x3, "Parallel port",
 107                         {0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
 108                         {0x00,0x00,0x00,0x00,0x04,0x3c,0x00,EOT}},
 109                 {0x4, "COM1",
 110                         {0x30,0x60,0x61,0x70,0xf0,EOT},
 111                         {0x00,0x00,0x00,0x00,0x00,EOT}},
 112                 {0x5, "COM2",
 113                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
 114                         {0x00,0x00,0x00,0x00,0x00,0x02,0x03,EOT}},
 115                 {0x7, "Keyboard",
 116                         {0x30,0x70,0x72,0xf0,EOT},
 117                         {0x00,0x00,0x00,0x00,EOT}},
 118                 {0xa, "Runtime registers",
 119                         {0x30,0x60,0x61,0x62,0x63,0xf0,0xf1,0xf2,EOT},
 120                         {0x00,0x00,0x00,0x00,0x00,NANA,RSVD,0x04,EOT}},
 121                 {EOT}}},
 122         {0x81, "SCH5307", {
 123                 {EOT}}},
 124         {EOT}
 125 };
 126
 127 static void enter_conf_mode_smsc(uint16_t port)
 128 {
 129         outb(0x55, port);
 130 }
 131
 132 static void exit_conf_mode_smsc(uint16_t port)
 133 {
 134         outb(0xaa, port);
 135 }
 136
 137 static void probe_idregs_smsc_helper(uint16_t port, uint8_t idreg,
 138                                      uint8_t revreg)
 139 {
 140         uint8_t id, rev;
 141         const char *info = (idreg == 0x20) ? "(idregs=0x20/0x21) "
 142                                            : "(idregs=0x0d/0x0e) ";
 143
 144         probing_for("SMSC", info, port);
 145
 146         enter_conf_mode_smsc(port);
 147
 148         id = regval(port, idreg);
 149         rev = regval(port, revreg);
 150
 151         if (superio_unknown(reg_table, id)) {
 152                 if (verbose)
 153                         printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", id, rev);
 154                 exit_conf_mode_smsc(port);
 155                 return;
 156         }
 157
 158         printf("Found %s %s (id=0x%02x, rev=0x%02x) at 0x%x\n",
 159                (id == 0x77 ? "ASUS" : "SMSC"), get_superio_name(reg_table, id),
 160                id, rev, port);
 161
 162         dump_superio((id == 0x77 ? "ASUS" : "SMSC"), reg_table, port, id);
 163         dump_superio_readable(port); /* TODO */
 164
 165         exit_conf_mode_smsc(port);
 166 }
 167
 168 void probe_idregs_smsc(uint16_t port)
 169 {
 170         probe_idregs_smsc_helper(port, DEVICE_ID_REG, DEVICE_REV_REG);
 171         probe_idregs_smsc_helper(port, DEVICE_ID_REG_OLD, DEVICE_REV_REG_OLD);
 172 }
 173