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  1. /*
  2.  * Copyright (c) 2007 Michal Kebrt
  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 arm32interrupt
  30.  * @{
  31.  */
  32. /** @file
  33.  *  @brief Declarations of interrupt controlling routines.
  34.  */
  35.  
  36. #ifndef KERN_arm32_INTERRUPT_H_
  37. #define KERN_arm32_INTERRUPT_H_
  38.  
  39. #include <arch/types.h>
  40.  
  41. /** Initial size of exception dispatch table. */
  42. #define IVT_ITEMS   6
  43.  
  44. /** Index of the first item in exception dispatch table. */
  45. #define IVT_FIRST   0
  46.  
  47.  
  48. extern void interrupt_init(void);
  49. extern ipl_t interrupts_disable(void);
  50. extern ipl_t interrupts_enable(void);
  51. extern void interrupts_restore(ipl_t ipl);
  52. extern ipl_t interrupts_read(void);
  53.  
  54.  
  55. #endif
  56.  
  57. /** @}
  58.  */
  59.