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  1. /*
  2.  * Copyright (c) 2006 Jakub Jermar
  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 genericddi
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_DDI_H_
  36. #define KERN_DDI_H_
  37.  
  38. #include <ddi/ddi_arg.h>
  39. #include <arch/types.h>
  40. #include <proc/task.h>
  41.  
  42. /** Structure representing contiguous physical memory area. */
  43. typedef struct {
  44.     uintptr_t pbase;    /**< Physical base of the area. */
  45.     uintptr_t vbase;    /**< Virtual base of the area. */
  46.     count_t frames;     /**< Number of frames in the area. */
  47.     bool cacheable;     /**< Cacheability. */
  48. } parea_t;
  49.  
  50. extern void ddi_init(void);
  51. extern void ddi_parea_register(parea_t *parea);
  52.  
  53. extern unative_t sys_physmem_map(unative_t phys_base, unative_t virt_base,
  54.     unative_t pages, unative_t flags);
  55. extern unative_t sys_iospace_enable(ddi_ioarg_t *uspace_io_arg);
  56. extern unative_t sys_preempt_control(int enable);
  57.  
  58. /*
  59.  * Interface to be implemented by all architectures.
  60.  */
  61. extern int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size);
  62.  
  63. #endif
  64.  
  65. /** @}
  66.  */
  67.