mirror of
https://github.com/lm-sensors/lm-sensors
synced 2025-08-22 18:08:28 +00:00
8fb3922219
From Brendan Heading: You may be aware of the musl C-library implementation, which tries to be strictly standards compliant, avoids non-standard extensions, etc. Some distributions have adopted it as their standard C library, in others (such as buildroot) it is a configuration alternative. Vanilla lm-sensors does not compile under musl, due to the following excerpt which appears in four different places. The code is checking that the glibc version is greater than 2.0. #if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 0 #include <sys/io.h> #else #include <asm/io.h> #endif This fails under musl does not define __GLIBC__ (in fact, by design, it doesn't provide any way to identify itself at all) - which causes it to try to include <asm/io.h> rather than <sys/io.h>. It's a long time since glibc 2.0.1 was released - 1997. Accordingly, it seems to make little sense at this stage to try to retain compatibility with very old libcs - so maybe it should be removed entirely.
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
|
|
superio: Handle special I/O operations needed by most Super-I/O chips
|
|
|
|
Copyright (C) 2005-2008 Jean Delvare <jdelvare@suse.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 Street, Fifth Floor, Boston,
|
|
MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include <sys/io.h>
|
|
#include <stdlib.h>
|
|
#include "superio.h"
|
|
|
|
int superio_parse_key(unsigned char *key, const char *s)
|
|
{
|
|
char *end;
|
|
int tmp;
|
|
key[0] = 0;
|
|
|
|
while (*s != '\0') {
|
|
tmp = strtol(s, &end, 0);
|
|
if ((*end != '\0' && *end != ',')
|
|
|| (tmp < 0x00 || tmp > 0xff))
|
|
return -1;
|
|
|
|
/* Byte is valid, store it */
|
|
key[++key[0]] = tmp;
|
|
|
|
/* Last byte? */
|
|
if (key[0] == SUPERIO_MAX_KEY
|
|
|| *end == '\0')
|
|
return 0;
|
|
|
|
/* Skip comma */
|
|
s = end + 1;
|
|
}
|
|
|
|
/* Unexpected end of string */
|
|
return -1;
|
|
}
|
|
|
|
void superio_write_key(int addrreg, unsigned char *key)
|
|
{
|
|
int i;
|
|
|
|
for (i = 1; i <= key[0]; i++)
|
|
outb(key[i], addrreg);
|
|
}
|
|
|
|
void superio_reset(int addrreg, int datareg)
|
|
{
|
|
/* Some chips (SMSC, Winbond) want this */
|
|
outb(0xaa, addrreg);
|
|
|
|
/* Return to "Wait For Key" state (PNP-ISA spec) */
|
|
outb(0x02, addrreg);
|
|
outb(0x02, datareg);
|
|
}
|