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/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2006 Ronald Minnich <rminnich@gmail.com>
* Copyright (C) 2006 coresystems GmbH <info@coresystems.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 <stdio.h>
#include <stdlib.h>
#include <sys/io.h>
/* well, they really thought this through, eh? Family is 8 bits!!!! */
char *familyid[] = {
[0xf1] = "pc8374 (winbond, was NS)"
};
/* eventually, if you care, break this out into a file. For now, I don't know
* if we need this.
*/
unsigned char regval(unsigned short port, unsigned short reg) {
outb(reg, port);
return inb(port+1);
}
void
dump_ns8374(unsigned short port) {
printf("Enables: 21=%02x, 22=%02x, 23=%02x, 24=%02x, 26=%02x\n",
regval(port,0x21), regval(port,0x22),
regval(port,0x23), regval(port,0x24), regval(port,0x26));
printf("SMBUS at %02x\n", regval(port, 0x2a));
/* check COM1. This is all we care about at present. */
printf("COM 1 is Globally %s\n", regval(port,0x26)&8 ? "disabled" : "enabled");
/* select com1 */
outb(0x7, port);
outb(3, port+1);
printf("COM 1 is locally %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
printf("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
/* select gpio */
outb(0x7, port);
outb(7, port+1);
printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
printf("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
}
void
dump_fintek(unsigned short port, unsigned int did)
{
switch(did) {
case 0x0604:
printf ("Fintek F71805\n");
break;
case 0x4103:
printf ("Fintek F71872\n");
break;
default:
printf ("Unknown Fintek SuperIO: did=0x%04x\n",did);
return;
}
printf("Flash write is %s.\n", regval(port, 0x28)&0x80 ? "enabled" : "disabled");
printf("Flash control is 0x%04x.\n", regval(port, 0x28));
printf("27=%02x\n", regval(port, 0x27));
printf("29=%02x\n", regval(port, 0x29));
printf("2a=%02x\n", regval(port, 0x2a));
printf("2b=%02x\n", regval(port, 0x2b));
/* select UART 1 */
outb(0x07, port);
outb(0x01, port+1);
printf("UART1 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n",
regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f,
regval(port, 0xf0)&0x10 ? "RS485":"RS232");
/* select UART 2 */
outb(0x07, port);
outb(0x02, port+1);
printf("UART2 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n",
regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f,
regval(port, 0xf0)&0x10 ? "RS485":"RS232");
/* select Parport */
outb(0x07, port);
outb(0x03, port+1);
printf("PARPORT is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
printf("PARPORT base=%02x%02x, irq=%02x\n",
regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f);
/* select hw monitor */
outb(0x07, port);
outb(0x04, port+1);
printf("HW monitor is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
printf("HW monitor base=%02x%02x, irq=%02x\n",
regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f);
/* select gpio */
outb(0x07, port);
outb(0x06, port+1);
printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
printf("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n",
regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1), regval(port, 0xe2),
regval(port, 0xe3), regval(port, 0xe4), regval(port, 0xe5));
printf("GPIO e6=%02x, e7=%02x, e8=%02x, e9=%02x, f0=%02x, f1=%02x, f3=%02x, f4=%02x\n",
regval(port, 0xe6), regval(port, 0xe7), regval(port, 0xe8), regval(port, 0xe9),
regval(port, 0xf0), regval(port, 0xf1), regval(port, 0xf3), regval(port, 0xf4));
printf("GPIO f5=%02x, f6=%02x, f7=%02x, f8=%02x\n",
regval(port, 0xf5), regval(port, 0xf6), regval(port, 0xf7), regval(port, 0xf8));
}
void
probe_idregs_simple(unsigned short port){
unsigned char id;
outb(0x20, port);
if (inb(port) != 0x20) {
if (inb(port) == 0xff )
printf ("No SuperIO chip found at 0x%04x\n", port);
else
printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n",
port, inb(port), inb(port+1));
return;
}
id = inb(port+1);
printf("SuperIO found at 0x%02x: id = 0x%02x\n", port, id);
if (id == 0xff)
return;
if (familyid[id])
printf("%s\n", familyid[id]);
else
printf("<unknown>\n");
switch(id) {
case 0xf1:
dump_ns8374(port);
break;
default:
printf("no dump for 0x%02x\n", id);
break;
}
}
void
probe_idregs_fintek(unsigned short port){
unsigned int vid, did;
// Enable configuration sequence (Fintek uses this for example)
outb(0x87, port);
outb(0x87, port);
//
outb(0x20, port);
if (inb(port) != 0x20) {
if (inb(port) == 0xff )
printf ("No SuperIO chip found at 0x%04x\n", port);
else
printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n",
port, inb(port), inb(port+1));
return;
}
did = inb(port+1);
outb(0x21, port);
did = did|(inb(port+1)<<8);
outb(0x23, port);
vid = inb(port+1);
outb(0x24, port);
vid = vid|(inb(port+1)<<8);
printf("SuperIO found at 0x%02x: vid=0x%04x/did=0x%04x\n", port, vid, did);
if (vid == 0xff || vid == 0xffff)
return;
// printf("%s\n", familyid[id]);
switch(vid) {
case 0x3419:
dump_fintek(port, did);
break;
default:
printf("no dump for 0x%04x/0x%04x\n", vid, did);
break;
}
// disable configuration
outb(0xaa, port);
}
void
probe_superio(unsigned short port) {
probe_idregs_simple(port);
probe_idregs_fintek(port);
}
int
main(int argc, char *argv[])
{
if (iopl(3) < 0) {
perror("iopl");
exit(1);
}
/* try the 2e */
probe_superio(0x2e);
/* now try the 4e */
probe_superio(0x4e);
return 0;
}
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