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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 libc
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <ddi.h>
  36. #include <libc.h>
  37. #include <task.h>
  38. #include <kernel/ddi/ddi_arg.h>
  39.  
  40. /** Map piece of physical memory to task.
  41.  *
  42.  * Caller of this function must have the CAP_MEM_MANAGER capability.
  43.  *
  44.  * @param pf Physical address of the starting frame.
  45.  * @param vp Virtual address of the sterting page.
  46.  * @param pages Number of pages to map.
  47.  * @param flags Flags for the new address space area.
  48.  *
  49.  * @return 0 on success, EPERM if the caller lacks the CAP_MEM_MANAGER capability,
  50.  *     ENOENT if there is no task with specified ID and ENOMEM if there
  51.  *     was some problem in creating address space area.
  52.  */
  53. int physmem_map(void *pf, void *vp, unsigned long pages, int flags)
  54. {
  55.     return __SYSCALL4(SYS_PHYSMEM_MAP, (sysarg_t) pf, (sysarg_t) vp, pages, flags);
  56. }
  57.  
  58. /** Enable I/O space range to task.
  59.  *
  60.  * Caller of this function must have the IO_MEM_MANAGER capability.
  61.  *
  62.  * @param id Task ID.
  63.  * @param ioaddr Starting address of the I/O range.
  64.  * @param size Size of the range.
  65.  *
  66.  * @return 0 on success, EPERM if the caller lacks the CAP_IO_MANAGER capability,
  67.  *     ENOENT if there is no task with specified ID and ENOMEM if there
  68.  *     was some problem in allocating memory.
  69.  */
  70. int iospace_enable(task_id_t id, void *ioaddr, unsigned long size)
  71. {
  72.     ddi_ioarg_t arg;
  73.  
  74.     arg.task_id = id;
  75.     arg.ioaddr = ioaddr;
  76.     arg.size = size;
  77.  
  78.     return __SYSCALL1(SYS_IOSPACE_ENABLE, (sysarg_t) &arg);
  79. }
  80.  
  81. /** Interrupt control
  82.  *
  83.  * @param enable 1 - enable interrupts, 0 - disable interrupts
  84.  */
  85. int preemption_control(int enable)
  86. {
  87.     return __SYSCALL1(SYS_PREEMPT_CONTROL, (sysarg_t) enable);
  88. }
  89.  
  90. /** @}
  91.  */
  92.