1 | /////////////////////////////////////////////////////////////////////////////////// |
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2 | // File : sys_handler.h |
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3 | // Date : 01/04/2012 |
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4 | // Author : alain greiner and joel porquet |
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5 | // Copyright (c) UPMC-LIP6 |
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6 | /////////////////////////////////////////////////////////////////////////////////// |
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7 | // The sys_handler.c and sys_handler.h files are part of the GIET-VM nano-kernel. |
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8 | // It define the syscall_vector[] (at the end of this file), as well as the |
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9 | // associated syscall handlers. |
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10 | /////////////////////////////////////////////////////////////////////////////////// |
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11 | |
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12 | #ifndef _SYS_HANDLER_H |
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13 | #define _SYS_HANDLER_H |
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14 | |
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15 | #include <mapping_info.h> |
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16 | |
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17 | /////////////////////////////////////////////////////////////////////////////////// |
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18 | // Syscall Vector Table (indexed by syscall index) |
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19 | /////////////////////////////////////////////////////////////////////////////////// |
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20 | |
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21 | extern const void * _syscall_vector[64]; |
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22 | |
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23 | /////////////////////////////////////////////////////////////////////////////////// |
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24 | // This structure can be used by the vci_chbuf_dma component to transfer a stream |
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25 | // of images from two buffers in user space to the frame buffer in kernel space. |
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26 | // It contains two chbuf descriptors |
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27 | // - The SRC chbuf contains two buffers (buf0 & buf1), that can be in user space. |
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28 | // - The DST cbuf contains one single buffer (fbf), that is the frame buffer. |
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29 | /////////////////////////////////////////////////////////////////////////////////// |
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30 | |
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31 | typedef struct fbf_chbuf_s |
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32 | { |
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33 | unsigned long long buf0; // physical address + status for user buffer 0 |
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34 | unsigned long long buf1; // physical address + status for user buffer 1 |
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35 | unsigned long long fbf; // physical address + status for user buffer 0 |
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36 | unsigned int length; // buffer length (bytes) |
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37 | unsigned int padding; // for 32 bytes alignment |
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38 | } fbf_chbuf_t; |
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39 | |
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40 | ////////////////////////////////////////////////////////////////////////////////// |
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41 | // TTY related syscall handlers |
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42 | ////////////////////////////////////////////////////////////////////////////////// |
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43 | |
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44 | int _sys_tty_alloc(); |
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45 | |
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46 | int _sys_tty_write( const char* buffer, |
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47 | unsigned int length, |
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48 | unsigned int channel ); |
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49 | |
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50 | int _sys_tty_read( char* buffer, |
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51 | unsigned int length, |
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52 | unsigned int channel ); |
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53 | |
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54 | int _sys_tty_get_lock( unsigned int channel, |
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55 | unsigned int * save_sr_ptr ); |
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56 | |
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57 | int _sys_tty_release_lock( unsigned int channel, |
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58 | unsigned int * save_sr_ptr ); |
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59 | |
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60 | ////////////////////////////////////////////////////////////////////////////// |
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61 | // TIM related syscall handlers |
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62 | ////////////////////////////////////////////////////////////////////////////// |
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63 | |
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64 | int _sys_tim_alloc(); |
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65 | |
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66 | int _sys_tim_start( unsigned int period ); |
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67 | |
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68 | int _sys_tim_stop(); |
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69 | |
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70 | ////////////////////////////////////////////////////////////////////////////// |
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71 | // NIC related syscall handlers |
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72 | ////////////////////////////////////////////////////////////////////////////// |
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73 | |
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74 | int _sys_nic_alloc(); |
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75 | |
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76 | int _sys_nic_sync_send( void* vbuf ); |
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77 | |
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78 | int _sys_nic_sync_receive( void* vbuf ); |
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79 | |
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80 | ////////////////////////////////////////////////////////////////////////////// |
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81 | // FBF related syscall handlers |
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82 | ////////////////////////////////////////////////////////////////////////////// |
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83 | |
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84 | int _sys_fbf_sync_write( unsigned int offset, |
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85 | void* buffer, |
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86 | unsigned int length ); |
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87 | |
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88 | int _sys_fbf_sync_read( unsigned int offset, |
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89 | void* buffer, |
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90 | unsigned int length ); |
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91 | |
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92 | int _sys_fbf_cma_alloc(); |
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93 | |
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94 | int _sys_fbf_cma_start( void* vbase0, |
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95 | void* vbase1, |
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96 | unsigned int length ); |
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97 | |
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98 | int _sys_fbf_cma_display( unsigned int buffer_index ); |
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99 | |
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100 | int _sys_fbf_cma_stop(); |
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101 | |
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102 | ////////////////////////////////////////////////////////////////////////////// |
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103 | // Miscelaneous syscall handlers |
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104 | ////////////////////////////////////////////////////////////////////////////// |
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105 | |
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106 | int _sys_ukn(); |
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107 | |
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108 | int _sys_proc_xyp( unsigned int* x, |
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109 | unsigned int* y, |
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110 | unsigned int* p ); |
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111 | |
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112 | int _sys_task_exit( char* string ); |
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113 | |
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114 | int _context_switch(); |
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115 | |
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116 | int _sys_local_task_id(); |
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117 | |
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118 | int _sys_global_task_id(); |
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119 | |
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120 | int _sys_thread_id(); |
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121 | |
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122 | int _sys_procs_number( unsigned int x, |
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123 | unsigned int y, |
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124 | unsigned int* number ); |
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125 | |
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126 | int _sys_vobj_get_vbase( char* vspace_name, |
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127 | char* vobj_name, |
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128 | unsigned int* vbase ); |
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129 | |
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130 | int _sys_vobj_get_length( char* vspace_name, |
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131 | char* vobj_name, |
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132 | unsigned int* length ); |
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133 | |
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134 | int _sys_xy_from_ptr( void* ptr, |
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135 | unsigned int* x, |
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136 | unsigned int* y ); |
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137 | |
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138 | int _sys_heap_info( unsigned int* vaddr, |
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139 | unsigned int* length, |
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140 | unsigned int x, |
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141 | unsigned int y ); |
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142 | |
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143 | #endif |
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144 | |
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145 | // Local Variables: |
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146 | // tab-width: 4 |
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147 | // c-basic-offset: 4 |
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148 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
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149 | // indent-tabs-mode: nil |
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150 | // End: |
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151 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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152 | |
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