coreboot-kgpe-d16/util/superiotool/smsc.c

77 lines
2.2 KiB
C

/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "superiotool.h"
#define DEVICE_ID_REG 0x0d
#define DEVICE_REV_REG 0x0e
const static struct superio_registers reg_table[] = {
{0x28, "FDC37N769", {
{NOLDN, NULL,
{0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,
0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,
0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
{0x28,0x9c,0x88,0x70,0x00,0x00,0xff,0x00,0x00,0x00,
0x00,0x00,0x02,0x28,NANA,0x00,0x00,0x80,RSVD,RSVD,
NANA,NANA,NANA,0x03,RSVD,RSVD,RSVD,RSVD,RSVD,RSVD,
0x80,0x00,0x3c,RSVD,RSVD,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,RSVD,0x00,0x00,0x03,0x00,0x00,EOT}},
{EOT}}},
{EOT}
};
static void enter_conf_mode_smsc(uint16_t port)
{
outb(0x55, port);
}
static void exit_conf_mode_smsc(uint16_t port)
{
outb(0xaa, port);
}
void probe_idregs_smsc(uint16_t port)
{
uint8_t id, rev;
enter_conf_mode_smsc(port);
id = regval(port, DEVICE_ID_REG);
rev = regval(port, DEVICE_REV_REG);
if (superio_unknown(reg_table, id)) {
no_superio_found(port);
exit_conf_mode_smsc(port);
return;
}
printf("Found SMSC %s (id=0x%02x, rev=0x%02x) at port=0x%x\n",
get_superio_name(reg_table, id), id, rev, port);
dump_superio("SMSC", reg_table, port, id);
dump_superio_readable(port); /* TODO */
exit_conf_mode_smsc(port);
}