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4651 | pillai | 1 | /* |
2 | * Copyright (c) 2009 Vineeth Pillai |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup arm32 |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | * @brief Definitions of machine specific functions. |
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34 | * |
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35 | * These functions enable to differentiate more kinds of ARM emulators |
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36 | * or CPUs. It's the same concept as "arch" functions on the architecture |
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37 | * level. |
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38 | */ |
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39 | |||
40 | #include <arch/machine_func.h> |
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41 | |||
42 | |||
43 | /** Acquire console back for kernel. */ |
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44 | void machine_grab_console(void) |
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45 | { |
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46 | (machine_ops.machine_grab_console)(); |
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47 | } |
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48 | |||
49 | /** Return console to userspace. */ |
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50 | void machine_release_console(void) |
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51 | { |
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52 | (machine_ops.machine_release_console)(); |
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53 | } |
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54 | |||
55 | |||
56 | /** Maps HW devices to the kernel address space using #hw_map. */ |
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57 | void machine_init(void) |
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58 | { |
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59 | (machine_ops.machine_init)(); |
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60 | } |
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61 | |||
62 | |||
63 | /** Starts timer. */ |
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64 | void machine_timer_irq_start(void) |
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65 | { |
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66 | (machine_ops.machine_timer_irq_start)(); |
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67 | } |
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68 | |||
69 | |||
70 | /** Halts CPU. */ |
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71 | void machine_cpu_halt(void) |
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72 | { |
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73 | (machine_ops.machine_cpu_halt)(); |
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74 | } |
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75 | |||
76 | |||
77 | /** Returns size of available memory. |
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78 | * |
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79 | * @return Size of available memory. |
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80 | */ |
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81 | uintptr_t machine_get_memory_size(void) |
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82 | { |
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83 | return (machine_ops.machine_get_memory_size)(); |
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84 | } |
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85 | |||
86 | /** Initializes the Frame Buffer |
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87 | * |
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88 | */ |
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89 | void machine_fb_init(void) |
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90 | { |
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91 | (machine_ops.machine_fb_init)(); |
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92 | } |
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93 | |||
94 | |||
95 | /** Interrupt exception handler. |
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96 | * |
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97 | * @param exc_no Interrupt exception number. |
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98 | * @param istate Saved processor state. |
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99 | */ |
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100 | void machine_irq_exception(int exc_no, istate_t *istate) |
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101 | { |
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102 | (machine_ops.machine_irq_exception)(exc_no, istate); |
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103 | } |
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104 | |||
105 | |||
106 | /** Returns address of framebuffer device. |
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107 | * |
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108 | * @return Address of framebuffer device. |
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109 | */ |
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110 | uintptr_t machine_get_fb_address(void) |
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111 | { |
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112 | return (machine_ops.machine_get_fb_address)(); |
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113 | } |
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114 | |||
115 | /* |
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116 | * Machine specific frame initialization |
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117 | */ |
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118 | void machine_frame_init(void) |
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119 | { |
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120 | (machine_ops.machine_frame_init)(); |
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121 | } |
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122 | |||
123 | /* |
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124 | * configure the output device. |
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125 | */ |
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126 | void machine_output_init(void) |
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127 | { |
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128 | (machine_ops.machine_output_init)(); |
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129 | } |
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130 | |||
131 | /* |
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132 | * configure the input device. |
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133 | */ |
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134 | void machine_input_init(void) |
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135 | { |
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136 | (machine_ops.machine_input_init)(); |
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137 | } |
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138 | |||
139 | /* |
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140 | * Generic function to use, if sepcific function doesn't define any of the above functions. |
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141 | */ |
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142 | void machine_genfunc() |
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143 | { |
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144 | } |
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145 | |||
146 | /** @} |
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147 | */ |