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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 arm32
  30.  * @{
  31.  */
  32. /** @file
  33.  *  @brief Declarations of machine specific functions.
  34.  *
  35.  *  These functions enable to differentiate more kinds of ARM emulators
  36.  *  or CPUs. It's the same concept as "arch" functions on the architecture
  37.  *  level.
  38.  */
  39.  
  40. #ifndef KERN_arm32_MACHINE_H_
  41. #define KERN_arm32_MACHINE_H_
  42.  
  43. #include <console/console.h>
  44. #include <arch/types.h>
  45. #include <arch/exception.h>
  46. #include <arch/drivers/gxemul.h>
  47.  
  48.  
  49. /** Initializes console.
  50.  *
  51.  * @param devno Console device number.
  52.  */
  53. extern void machine_console_init(devno_t devno);
  54.  
  55.  
  56. /** Acquire console back for kernel. */
  57. extern void machine_grab_console(void);
  58.  
  59.  
  60. /** Return console to userspace. */
  61. extern void machine_release_console(void);
  62.  
  63.  
  64. /** Maps HW devices to the kernel address space using #hw_map. */
  65. extern void machine_hw_map_init(void);
  66.  
  67.  
  68. /** Starts timer. */
  69. extern void machine_timer_irq_start(void);
  70.  
  71.  
  72. /** Halts CPU. */
  73. extern void machine_cpu_halt(void);
  74.  
  75.  
  76. /** Returns size of available memory.
  77.  *
  78.  *  @return Size of available memory.
  79.  */
  80. extern size_t machine_get_memory_size(void);
  81.  
  82.  
  83. /** Prints a character.
  84.  *
  85.  *  @param ch Character to be printed.
  86.  */
  87. extern void machine_debug_putc(char ch);
  88.  
  89.  
  90. /** Interrupt exception handler.
  91.  *
  92.  * @param exc_no Interrupt exception number.
  93.  * @param istate Saved processor state.
  94.  */
  95. extern void machine_irq_exception(int exc_no, istate_t *istate);
  96.  
  97.  
  98. /** Returns address of framebuffer device.
  99.  *
  100.  *  @return Address of framebuffer device.
  101.  */
  102. extern uintptr_t machine_get_fb_address(void);
  103.  
  104.  
  105. #ifdef MACHINE_GXEMUL_TESTARM  
  106. #define machine_console_init(devno)           gxemul_console_init(devno)
  107. #define machine_grab_console                  gxemul_grab_console
  108. #define machine_release_console               gxemul_release_console
  109. #define machine_hw_map_init                   gxemul_hw_map_init
  110. #define machine_timer_irq_start               gxemul_timer_irq_start
  111. #define machine_cpu_halt                      gxemul_cpu_halt
  112. #define machine_get_memory_size               gxemul_get_memory_size
  113. #define machine_debug_putc(ch)                gxemul_debug_putc(ch)
  114. #define machine_irq_exception(exc_no, istate) \
  115.         gxemul_irq_exception(exc_no, istate)
  116. #define machine_get_fb_address                gxemul_get_fb_address
  117. #endif
  118.  
  119. #endif
  120.  
  121. /** @}
  122.  */
  123.