--- /dev/null
+/* Access to hardware i/o ports. Hurd/x86 version.
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sys/io.h>
+#include <hurd.h>
+#include <mach/i386/mach_i386.h>
+
+int
+ioperm (unsigned long int from, unsigned long int num, int turn_on)
+{
+#if ! HAVE_I386_IO_PERM_MODIFY
+ return __hurd_fail (ENOSYS);
+#else
+ error_t err;
+ device_t devmaster;
+
+ /* With the device master port we get a capability that represents
+ this range of io ports. */
+ err = __get_privileged_ports (NULL, &devmaster);
+ if (! err)
+ {
+ io_perm_t perm;
+ err = __i386_io_perm_create (devmaster, from, from + num, &perm);
+ __mach_port_deallocate (__mach_task_self (), devmaster);
+ if (! err)
+ {
+ /* Now we add or remove that set from our task's bitmap. */
+ err = __i386_io_perm_modify (__mach_task_self (), perm, turn_on);
+ __mach_port_deallocate (__mach_task_self (), perm);
+ }
+
+ if (err == MIG_BAD_ID) /* Old kernels don't have these RPCs. */
+ err = ENOSYS;
+ }
+
+ return err ? __hurd_fail (err) : 0;
+#endif
+}
--- /dev/null
+/* Access to hardware i/o ports. GNU/x86 version.
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_IO_H
+#define _SYS_IO_H 1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* If TURN_ON is TRUE, request for permission to do direct i/o on the
+ port numbers in the range [FROM,FROM+NUM-1]. Otherwise, turn I/O
+ permission off for that range. This call requires root privileges. */
+extern int ioperm (unsigned long int __from, unsigned long int __num,
+ int __turn_on) __THROW;
+
+/* Set the I/O privilege level to LEVEL. If LEVEL>3, permission to
+ access any I/O port is granted. This call requires root
+ privileges. */
+extern int iopl (int __level) __THROW;
+
+#if defined __GNUC__ && __GNUC__ >= 2
+
+static __inline unsigned char
+inb (unsigned short int port)
+{
+ unsigned char _v;
+
+ __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned char
+inb_p (unsigned short int port)
+{
+ unsigned char _v;
+
+ __asm__ __volatile__ ("inb %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned short int
+inw (unsigned short int port)
+{
+ unsigned short _v;
+
+ __asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned short int
+inw_p (unsigned short int port)
+{
+ unsigned short int _v;
+
+ __asm__ __volatile__ ("inw %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned int
+inl (unsigned short int port)
+{
+ unsigned int _v;
+
+ __asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned int
+inl_p (unsigned short int port)
+{
+ unsigned int _v;
+ __asm__ __volatile__ ("inl %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline void
+outb (unsigned char value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline void
+outb_p (unsigned char value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80": :"a" (value),
+ "Nd" (port));
+}
+
+static __inline void
+outw (unsigned short int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
+
+}
+
+static __inline void
+outw_p (unsigned short int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80": :"a" (value),
+ "Nd" (port));
+}
+
+static __inline void
+outl (unsigned int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline void
+outl_p (unsigned int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80": :"a" (value),
+ "Nd" (port));
+}
+
+static __inline void
+insb (unsigned short int port, void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; insb":"=D" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+insw (unsigned short int port, void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; insw":"=D" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+insl (unsigned short int port, void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; insl":"=D" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsb (unsigned short int port, const void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; outsb":"=S" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsw (unsigned short int port, const void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; outsw":"=S" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsl (unsigned short int port, const void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; outsl":"=S" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+#endif /* GNU C */
+
+__END_DECLS
+#endif /* _SYS_IO_H */
projects / thirdparty / glibc.git / commitdiff
