Subversion Repositories HelenOS

Rev

Rev 4055 | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (c) 2005 Jakub Vana
  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 libcia64   
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef LIBC_ia64_DDI_H_
  36. #define LIBC_ia64_DDI_H_
  37.  
  38. #include <sys/types.h>
  39. #include <libarch/types.h>
  40.  
  41. #define IO_SPACE_BOUNDARY   (64 * 1024)
  42.  
  43. uint64_t get_ia64_iospace_address(void);
  44.  
  45. extern uint64_t ia64_iospace_address;
  46.  
  47. #define IA64_IOSPACE_ADDRESS \
  48.     (ia64_iospace_address ? \
  49.         ia64_iospace_address : \
  50.         (ia64_iospace_address = get_ia64_iospace_address()))
  51.  
  52. static inline void pio_write_8(ioport8_t *port, uint8_t v)
  53. {
  54.     uintptr_t prt = (uintptr_t) port;
  55.  
  56.     *((ioport8_t *)(IA64_IOSPACE_ADDRESS +
  57.         ((prt & 0xfff) | ((prt >> 2) << 12)))) = v;
  58.  
  59.     asm volatile ("mf\n" ::: "memory");
  60. }
  61.  
  62. static inline void pio_write_16(ioport16_t *port, uint16_t v)
  63. {
  64.     uintptr_t prt = (uintptr_t) port;
  65.  
  66.     *((ioport16_t *)(IA64_IOSPACE_ADDRESS +
  67.         ((prt & 0xfff) | ((prt >> 2) << 12)))) = v;
  68.  
  69.     asm volatile ("mf\n" ::: "memory");
  70. }
  71.  
  72. static inline void pio_write_32(ioport32_t *port, uint32_t v)
  73. {
  74.     uintptr_t prt = (uintptr_t) port;
  75.  
  76.     *((ioport32_t *)(IA64_IOSPACE_ADDRESS +
  77.         ((prt & 0xfff) | ((prt >> 2) << 12)))) = v;
  78.  
  79.     asm volatile ("mf\n" ::: "memory");
  80. }
  81.  
  82. static inline uint8_t pio_read_8(ioport8_t *port)
  83. {
  84.     uintptr_t prt = (uintptr_t) port;
  85.  
  86.     asm volatile ("mf\n" ::: "memory");
  87.  
  88.     return *((ioport8_t *)(IA64_IOSPACE_ADDRESS +
  89.         ((prt & 0xfff) | ((prt >> 2) << 12))));
  90. }
  91.  
  92. static inline uint16_t pio_read_16(ioport16_t *port)
  93. {
  94.     uintptr_t prt = (uintptr_t) port;
  95.  
  96.     asm volatile ("mf\n" ::: "memory");
  97.  
  98.     return *((ioport16_t *)(IA64_IOSPACE_ADDRESS +
  99.         ((prt & 0xfff) | ((prt >> 2) << 12))));
  100. }
  101.  
  102. static inline uint32_t pio_read_32(ioport32_t *port)
  103. {
  104.     uintptr_t prt = (uintptr_t) port;
  105.  
  106.     asm volatile ("mf\n" ::: "memory");
  107.  
  108.     return *((ioport32_t *)(IA64_IOSPACE_ADDRESS +
  109.         ((prt & 0xfff) | ((prt >> 2) << 12))));
  110. }
  111.  
  112. #endif
  113.  
  114. /** @}
  115.  */
  116.