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  1. /*
  2.  * Copyright (c) 2009 Vineeth Pillai
  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 Definitions 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. #include <arch/machine_func.h>
  41.  
  42.  
  43. /** Acquire console back for kernel. */
  44. void machine_grab_console(void)
  45. {
  46.     (machine_ops.machine_grab_console)();
  47. }
  48.  
  49. /** Return console to userspace. */
  50. void machine_release_console(void)
  51. {
  52.     (machine_ops.machine_release_console)();
  53. }
  54.  
  55.  
  56. /** Maps HW devices to the kernel address space using #hw_map. */
  57. void machine_init(void)
  58. {
  59.     (machine_ops.machine_init)();
  60. }
  61.  
  62.  
  63. /** Starts timer. */
  64. void machine_timer_irq_start(void)
  65. {
  66.     (machine_ops.machine_timer_irq_start)();
  67. }
  68.  
  69.  
  70. /** Halts CPU. */
  71. void machine_cpu_halt(void)
  72. {
  73.     (machine_ops.machine_cpu_halt)();
  74. }
  75.  
  76.  
  77. /** Returns size of available memory.
  78.  *
  79.  *  @return Size of available memory.
  80.  */
  81. uintptr_t machine_get_memory_size(void)
  82. {
  83.     return (machine_ops.machine_get_memory_size)();
  84. }
  85.  
  86. /** Initializes the Frame Buffer
  87.  *
  88.  */
  89. void machine_fb_init(void)
  90. {
  91.     (machine_ops.machine_fb_init)();
  92. }
  93.  
  94.  
  95. /** Interrupt exception handler.
  96.  *
  97.  * @param exc_no Interrupt exception number.
  98.  * @param istate Saved processor state.
  99.  */
  100. void machine_irq_exception(int exc_no, istate_t *istate)
  101. {
  102.     (machine_ops.machine_irq_exception)(exc_no, istate);
  103. }
  104.  
  105.  
  106. /** Returns address of framebuffer device.
  107.  *
  108.  *  @return Address of framebuffer device.
  109.  */
  110. uintptr_t machine_get_fb_address(void)
  111. {
  112.     return (machine_ops.machine_get_fb_address)();
  113. }
  114.  
  115. /*
  116.  * Machine specific frame initialization
  117.  */
  118. void machine_frame_init(void)
  119. {
  120.     (machine_ops.machine_frame_init)();
  121. }
  122.  
  123. /*
  124.  * configure the output device.
  125.  */
  126. void machine_output_init(void)
  127. {
  128.     (machine_ops.machine_output_init)();
  129. }
  130.  
  131. /*
  132.  * configure the input device.
  133.  */
  134. void machine_input_init(void)
  135. {
  136.     (machine_ops.machine_input_init)();
  137. }
  138.  
  139. /*
  140.  * Generic function to use, if sepcific function doesn't define any of the above functions.
  141.  */
  142. void machine_genfunc()
  143. {
  144. }
  145.  
  146. /** @}
  147.  */
  148.