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  1. /*
  2.  * Copyright (C) 2006 Ondrej Palkovsky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @file
  30.  * @ingroup libcia32, libcamd64
  31.  */
  32.  
  33. #ifndef __ia32_libc_DDI_H_
  34. #define __ia32_libc_DDI_H_
  35.  
  36. static inline void outb(int16_t port, uint8_t b)
  37. {
  38.     asm volatile ("outb %0, %1\n" :: "a" (b), "d" (port));
  39. }
  40.  
  41. static inline void outw(int16_t port, int16_t w)
  42. {
  43.     asm volatile ("outw %0, %1\n" :: "a" (w), "d" (port));
  44. }
  45.  
  46. static inline void outl(int16_t port, uint32_t l)
  47. {
  48.     asm volatile ("outl %0, %1\n" :: "a" (l), "d" (port));
  49. }
  50.  
  51. static inline uint8_t inb(int16_t port)
  52. {
  53.     uint8_t val;
  54.  
  55.     asm volatile ("inb %1, %0 \n" : "=a" (val) : "d"(port));
  56.     return val;
  57. }
  58.  
  59. static inline int16_t inw(int16_t port)
  60. {
  61.     int16_t val;
  62.  
  63.     asm volatile ("inw %1, %0 \n" : "=a" (val) : "d"(port));
  64.     return val;
  65. }
  66.  
  67. static inline uint32_t inl(int16_t port)
  68. {
  69.     uint32_t val;
  70.  
  71.     asm volatile ("inl %1, %0 \n" : "=a" (val) : "d"(port));
  72.     return val;
  73. }
  74.  
  75.  
  76. #endif
  77.