This document wasn't intended to be presented on the web, but since I have
written down my notes and there isn't any other HOWTO on the web, here it is!
Parallel Port access on Sun Solaris 9 x86 free and Solaris 10 x86
How to get access to the parallel port from a freshly installed system
install gcc from sunfreeware.com:
Download gcc for Solaris and do:
# gunzip [package.gz]
# pkgadd -d [package]
Make symbolic links for:
# ln -s /usr/local/bin/gcc /bin/gcc
# ln -s /usr/ccs/bin/make /bin/make
# ln -s /usr/ccs/bin/ar /bin/ar
# ln -s /usr/ccs/bin/ld /bin/ld
Since it appears that direct access is not allowed, we need a kernel driver in order
to access the port:
Download libieee1284 (cross-platform library for parallel port access)
http://sourceforge.net/projects/libieee1284
unpack, configure and compile with:
# bunzip2 libieee1284-[version].tar.bz2
# tar xf libieee1284-[version].tar
# cd libieee1284-[version]
# ./configure
# make
Don't do "make install", since this didn't work for me and it's simple to add the kernel driver yourself:
# cp iop /kernel/drv/iop
# cp solaris_io/iop.conf /kernel/drv/iop.conf
Reboot the system and boot with:
b -r
This will rebuild the /devices directory
Now you should see iop@0:iop in /devices/pseudo
If the pseudo-device is missing, try:
# add_drv iop
You must be root to add the driver with add_drv and also be root to do port I/O!
Substitute functions for inb and outb:
int inb(int port) {
iopbuf tmpbuf;
tmpbuf.port_value = 0;
tmpbuf.port = port;
if(ioctl(fd, IOPREAD, &tmpbuf)) {
perror("IOCTL failed\n");
exit(1);
}
return tmpbuf.port_value;
}
int outb(int value, int port) {
iopbuf tmpbuf;
tmpbuf.port_value = value;
tmpbuf.port = port;
if(ioctl(fd, IOPWRITE, &tmpbuf)) {
perror("IOCTL failed\n");
exit(1);
}
return 1;
}
Example:
////////////////////////////////////////////////
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#define BASEPORT 0x378
#define IOPREAD 1
#define IOPWRITE 2
typedef struct iopbuf_struct {
unsigned int port;
unsigned char port_value;
} iopbuf;
int fd=0;
int main(int argc, char **argv) {
// open the device - since we use a kernel driver, we not need to do ioperm like on linux
if((fd=open("/devices/pseudo/iop@0:iop", O_RDWR)) < 0)
{
perror("OPEN failed\n");
exit(1);
}
// do some inb and/or outb stuff
// outb(33, BASEPORT + 2); // set to input mode and make STROBE high
// inb(BASEPORT);
close(fd);
}
int inb(int port) {
iopbuf tmpbuf;
tmpbuf.port_value = 0;
tmpbuf.port = port;
if(ioctl(fd, IOPREAD, &tmpbuf)) {
perror("IOCTL failed\n");
exit(1);
}
return tmpbuf.port_value;
}
int outb(int value, int port) {
iopbuf tmpbuf;
tmpbuf.port_value = value;
tmpbuf.port = port;
if(ioctl(fd, IOPWRITE, &tmpbuf)) {
perror("IOCTL failed\n");
exit(1);
}
return 1;
}
////////////////////////////////////////////////
last update: 02-JAN-2004
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