+++ /dev/null
-/*****************************************************************************/
-/**
- * \file
- * \brief x86 port I/O
- *
- * \date 06/2003
- * \author Frank Mehnert <fm3@os.inf.tu-dresden.de>
- */
-/*****************************************************************************/
-
-/*
- * (c) 2003-2009 Author(s)
- * economic rights: Technische Universität Dresden (Germany)
- * This file is part of TUD:OS and distributed under the terms of the
- * GNU Lesser General Public License 2.1.
- * Please see the COPYING-LGPL-2.1 file for details.
- */
-
-#ifndef _L4UTIL_PORT_IO_H
-#define _L4UTIL_PORT_IO_H
-
-/**
- * \defgroup l4util_portio IA32 Port I/O API
- * \ingroup l4util_api
- */
-
-/* L4 includes */
-#include <l4/sys/l4int.h>
-#include <l4/sys/compiler.h>
-
-/*****************************************************************************
- *** Prototypes
- *****************************************************************************/
-
-EXTERN_C_BEGIN
-/**
- * \addtogroup l4util_portio
- */
-/*@{*/
-/**
- * \brief Read byte from I/O port
- *
- * \param port I/O port address
- * \return value
- */
-L4_INLINE l4_uint8_t
-l4util_in8(l4_uint16_t port);
-
-/**
- * \brief Read 16-bit-value from I/O port
- *
- * \param port I/O port address
- * \return value
- */
-L4_INLINE l4_uint16_t
-l4util_in16(l4_uint16_t port);
-
-/**
- * \brief Read 32-bit-value from I/O port
- *
- * \param port I/O port address
- * \return value
- */
-L4_INLINE l4_uint32_t
-l4util_in32(l4_uint16_t port);
-
-/**
- * \brief Read a block of 8-bit-values from I/O ports
- *
- * \param port I/O port address
- * \param addr address of buffer
- * \param count number of I/O operations
- */
-L4_INLINE void
-l4util_ins8(l4_uint16_t port, l4_umword_t addr, l4_umword_t count);
-
-/**
- * \brief Read a block of 16-bit-values from I/O ports
- *
- * \param port I/O port address
- * \param addr address of buffer
- * \param count number of I/O operations
- */
-L4_INLINE void
-l4util_ins16(l4_uint16_t port, l4_umword_t addr, l4_umword_t count);
-
-/**
- * \brief Read a block of 32-bit-values from I/O ports
- *
- * \param port I/O port address
- * \param addr address of buffer
- * \param count number of I/O operations
- */
-L4_INLINE void
-l4util_ins32(l4_uint16_t port, l4_umword_t addr, l4_umword_t count);
-
-/**
- * \brief Write byte to I/O port
- *
- * \param port I/O port address
- * \param value value to write
- */
-L4_INLINE void
-l4util_out8(l4_uint8_t value, l4_uint16_t port);
-
-/**
- * \brief Write 16-bit-value to I/O port
- * \ingroup port_io
- *
- * \param port I/O port address
- * \param value value to write
- */
-L4_INLINE void
-l4util_out16(l4_uint16_t value, l4_uint16_t port);
-
-/**
- * \brief Write 32-bit-value to I/O port
- *
- * \param port I/O port address
- * \param value value to write
- */
-L4_INLINE void
-l4util_out32(l4_uint32_t value, l4_uint16_t port);
-
-/**
- * \brief Write a block of bytes to I/O port
- *
- * \param port I/O port address
- * \param addr address of buffer
- * \param count number of I/O operations
- */
-L4_INLINE void
-l4util_outs8(l4_uint16_t port, l4_umword_t addr, l4_umword_t count);
-
-/**
- * \brief Write a block of 16-bit-values to I/O port
- * \ingroup port_io
- *
- * \param port I/O port address
- * \param addr address of buffer
- * \param count number of I/O operations
- */
-L4_INLINE void
-l4util_outs16(l4_uint16_t port, l4_umword_t addr, l4_umword_t count);
-
-/**
- * \brief Write block of 32-bit-values to I/O port
- *
- * \param port I/O port address
- * \param addr address of buffer
- * \param count number of I/O operations
- */
-L4_INLINE void
-l4util_outs32(l4_uint16_t port, l4_umword_t addr, l4_umword_t count);
-
-/**
- * \brief delay I/O port access by writing to port 0x80
- */
-L4_INLINE void
-l4util_iodelay(void);
-
-/*@}*/
-
-EXTERN_C_END
-
-
-/*****************************************************************************
- *** Implementation
- *****************************************************************************/
-
-L4_INLINE l4_uint8_t
-l4util_in8(l4_uint16_t port)
-{
- l4_uint8_t value;
- asm volatile ("inb %w1, %b0" : "=a" (value) : "Nd" (port));
- return value;
-}
-
-L4_INLINE l4_uint16_t
-l4util_in16(l4_uint16_t port)
-{
- l4_uint16_t value;
- asm volatile ("inw %w1, %w0" : "=a" (value) : "Nd" (port));
- return value;
-}
-
-L4_INLINE l4_uint32_t
-l4util_in32(l4_uint16_t port)
-{
- l4_uint32_t value;
- asm volatile ("inl %w1, %0" : "=a" (value) : "Nd" (port));
- return value;
-}
-
-L4_INLINE void
-l4util_ins8(l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
-{
- l4_umword_t dummy1, dummy2;
- asm volatile ("rep insb" : "=D"(dummy1), "=c"(dummy2)
- : "d" (port), "D" (addr), "c"(count)
- : "memory");
-}
-
-L4_INLINE void
-l4util_ins16(l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
-{
- l4_umword_t dummy1, dummy2;
- asm volatile ("rep insw" : "=D"(dummy1), "=c"(dummy2)
- : "d" (port), "D" (addr), "c"(count)
- : "memory");
-}
-
-L4_INLINE void
-l4util_ins32(l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
-{
- l4_umword_t dummy1, dummy2;
- asm volatile ("rep insl" : "=D"(dummy1), "=c"(dummy2)
- : "d" (port), "D" (addr), "c"(count)
- : "memory");
-}
-
-L4_INLINE void
-l4util_out8(l4_uint8_t value, l4_uint16_t port)
-{
- asm volatile ("outb %b0, %w1" : : "a" (value), "Nd" (port));
-}
-
-L4_INLINE void
-l4util_out16(l4_uint16_t value, l4_uint16_t port)
-{
- asm volatile ("outw %w0, %w1" : : "a" (value), "Nd" (port));
-}
-
-L4_INLINE void
-l4util_out32(l4_uint32_t value, l4_uint16_t port)
-{
- asm volatile ("outl %0, %w1" : : "a" (value), "Nd" (port));
-}
-
-L4_INLINE void
-l4util_outs8(l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
-{
- l4_umword_t dummy1, dummy2;
- asm volatile ("rep outsb" : "=S"(dummy1), "=c"(dummy2)
- : "d" (port), "S" (addr), "c"(count)
- : "memory");
-}
-
-L4_INLINE void
-l4util_outs16(l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
-{
- l4_umword_t dummy1, dummy2;
- asm volatile ("rep outsw" : "=S"(dummy1), "=c"(dummy2)
- : "d" (port), "S" (addr), "c"(count)
- : "memory");
-}
-
-L4_INLINE void
-l4util_outs32(l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
-{
- l4_umword_t dummy1, dummy2;
- asm volatile ("rep outsl" : "=S"(dummy1), "=c"(dummy2)
- : "d" (port), "S" (addr), "c"(count)
- : "memory");
-}
-
-L4_INLINE void
-l4util_iodelay(void)
-{
- asm volatile ("outb %al,$0x80");
-}
-
-#endif
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