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  1. /*
  2.  * Copyright (c) 2006 Josef Cejka
  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. /** @addtogroup kbd_port
  30.  * @ingroup  kbd
  31.  * @{
  32.  */
  33.  
  34. /** @file
  35.  * @brief i8042 port driver.
  36.  */
  37.  
  38. #ifndef KBD_PORT_i8042_H_
  39. #define KBD_PORT_i8042_H_
  40.  
  41. #include <ddi.h>
  42. #include <libarch/ddi.h>
  43.  
  44. #define i8042_DATA      0x60
  45. #define i8042_STATUS    0X64
  46.  
  47.  
  48. typedef unsigned char u8;
  49. typedef short u16;
  50.  
  51. static inline void i8042_data_write(u8 data)
  52. {
  53.     outb(i8042_DATA, data);
  54. }
  55.  
  56. static inline u8 i8042_data_read(void)
  57. {
  58.     return inb(i8042_DATA);
  59. }
  60.  
  61. static inline u8 i8042_status_read(void)
  62. {
  63.     return inb(i8042_STATUS);
  64. }
  65.  
  66. static inline void i8042_command_write(u8 command)
  67. {
  68.     outb(i8042_STATUS, command);
  69. }
  70.  
  71. #endif
  72.  
  73. /**
  74.  * @}
  75.  */
  76.