[521] | 1 | ///////////////////////////////////////////////////////////////////////////// |
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[258] | 2 | // File : stdio.h |
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| 3 | // Date : 01/04/2010 |
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| 4 | // Author : alain greiner & Joel Porquet |
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| 5 | // Copyright (c) UPMC-LIP6 |
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[521] | 6 | ///////////////////////////////////////////////////////////////////////////// |
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[390] | 7 | // The stdio.c and stdio.h files are part of the GIET_VM nano-kernel. |
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| 8 | // This library contains all user-level functions that contain a system call |
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| 9 | // to access protected or shared ressources. |
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[521] | 10 | ///////////////////////////////////////////////////////////////////////////// |
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[258] | 11 | |
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| 12 | #ifndef _STDIO_H |
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| 13 | #define _STDIO_H |
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| 14 | |
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[663] | 15 | #include "giet_fat32/fat32_shared.h" |
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[709] | 16 | #include "giet_common/mips32_registers.h" |
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[663] | 17 | |
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[258] | 18 | // These define must be synchronised with |
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| 19 | // the _syscall_vector defined in file sys_handler.c |
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| 20 | |
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[521] | 21 | #define SYSCALL_PROC_XYP 0x00 |
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| 22 | #define SYSCALL_PROC_TIME 0x01 |
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[709] | 23 | #define SYSCALL_PROCS_NUMBER 0x02 |
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| 24 | #define SYSCALL_GET_XY 0x03 |
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| 25 | // 0x04 |
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[713] | 26 | #define SYSCALL_VOBJ_GET_VBASE 0x05 |
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| 27 | #define SYSCALL_VOBJ_GET_LENGTH 0x06 |
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[521] | 28 | #define SYSCALL_HEAP_INFO 0x07 |
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[713] | 29 | #define SYSCALL_FBF_SIZE 0x08 |
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| 30 | #define SYSCALL_FBF_ALLOC 0x09 |
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[521] | 31 | #define SYSCALL_FBF_CMA_ALLOC 0x0A |
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[614] | 32 | #define SYSCALL_FBF_CMA_INIT_BUF 0x0B |
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| 33 | #define SYSCALL_FBF_CMA_START 0x0C |
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| 34 | #define SYSCALL_FBF_CMA_DISPLAY 0x0D |
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| 35 | #define SYSCALL_FBF_CMA_STOP 0x0E |
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[709] | 36 | // 0x0F |
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[258] | 37 | |
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[709] | 38 | #define SYSCALL_APPS_STATUS 0x10 |
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[614] | 39 | #define SYSCALL_FBF_SYNC_WRITE 0x11 |
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| 40 | #define SYSCALL_FBF_SYNC_READ 0x12 |
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[709] | 41 | // 0x13 |
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[521] | 42 | #define SYSCALL_TIM_ALLOC 0x14 |
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| 43 | #define SYSCALL_TIM_START 0x15 |
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| 44 | #define SYSCALL_TIM_STOP 0x16 |
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[628] | 45 | #define SYSCALL_KILL_APP 0x17 |
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| 46 | #define SYSCALL_EXEC_APP 0x18 |
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[709] | 47 | // 0x19 |
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| 48 | #define SYSCALL_PTHREAD_CONTROL 0x1A |
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| 49 | #define SYSCALL_PTHREAD_YIELD 0x1B |
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| 50 | #define SYSCALL_PTHREAD_KILL 0x1C |
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| 51 | #define SYSCALL_PTHREAD_CREATE 0x1D |
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| 52 | #define SYSCALL_PTHREAD_JOIN 0x1E |
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| 53 | #define SYSCALL_PTHREAD_EXIT 0x1F |
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[258] | 54 | |
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[521] | 55 | #define SYSCALL_FAT_OPEN 0x20 |
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| 56 | #define SYSCALL_FAT_READ 0x21 |
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| 57 | #define SYSCALL_FAT_WRITE 0x22 |
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| 58 | #define SYSCALL_FAT_LSEEK 0x23 |
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[588] | 59 | #define SYSCALL_FAT_FINFO 0x24 |
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[521] | 60 | #define SYSCALL_FAT_CLOSE 0x25 |
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[588] | 61 | #define SYSCALL_FAT_REMOVE 0x26 |
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| 62 | #define SYSCALL_FAT_RENAME 0x27 |
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| 63 | #define SYSCALL_FAT_MKDIR 0x28 |
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[661] | 64 | #define SYSCALL_FAT_OPENDIR 0x29 |
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| 65 | #define SYSCALL_FAT_CLOSEDIR 0x2A |
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| 66 | #define SYSCALL_FAT_READDIR 0x2B |
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| 67 | // 0x2C |
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[521] | 68 | // 0x2D |
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| 69 | // 0x2E |
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| 70 | // 0x2F |
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[258] | 71 | |
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[521] | 72 | #define SYSCALL_NIC_ALLOC 0x30 |
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| 73 | #define SYSCALL_NIC_START 0x31 |
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| 74 | #define SYSCALL_NIC_MOVE 0x32 |
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| 75 | #define SYSCALL_NIC_STOP 0x33 |
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| 76 | #define SYSCALL_NIC_STATS 0x34 |
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| 77 | #define SYSCALL_NIC_CLEAR 0x35 |
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[709] | 78 | #define SYSCALL_TTY_WRITE 0x36 |
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| 79 | #define SYSCALL_TTY_READ 0x37 |
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| 80 | #define SYSCALL_TTY_ALLOC 0x38 |
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[558] | 81 | // 0x39 |
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| 82 | // 0x3A |
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[521] | 83 | #define SYSCALL_COPROC_COMPLETED 0x3B |
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| 84 | #define SYSCALL_COPROC_ALLOC 0x3C |
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| 85 | #define SYSCALL_COPROC_CHANNEL_INIT 0x3D |
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[558] | 86 | #define SYSCALL_COPROC_RUN 0x3E |
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| 87 | #define SYSCALL_COPROC_RELEASE 0x3F |
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[450] | 88 | |
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[521] | 89 | //////////////////////////////////////////////////////////////////////////// |
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[713] | 90 | // Define the error codes for the syscall handlers |
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| 91 | // These define must be synchronized with values in the sys_handler.h file |
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| 92 | //////////////////////////////////////////////////////////////////////////// |
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| 93 | |
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| 94 | #define SYSCALL_OK ( 0 ) |
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| 95 | #define SYSCALL_VSPACE_NOT_FOUND (-1 ) |
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| 96 | #define SYSCALL_THREAD_NOT_FOUND (-2 ) |
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| 97 | #define SYSCALL_NOT_IN_SAME_VSPACE (-3 ) |
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| 98 | #define SYSCALL_UNCOHERENT_THREAD_CONTEXT (-4 ) |
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| 99 | #define SYSCALL_ILLEGAL_THREAD_COMMAND_TYPE (-5 ) |
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| 100 | #define SYSCALL_CANNOT_LOAD_DATA_SEGMENT (-6 ) |
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| 101 | #define SYSCALL_THREAD_ALREADY_ACTIVE (-7 ) |
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| 102 | #define SYSCALL_MAIN_NOT_FOUND (-8 ) |
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| 103 | #define SYSCALL_APPLI_CANNOT_BE_KILLED (-9 ) |
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| 104 | #define SYSCALL_PTHREAD_ARGUMENT_NOT_SUPPORTED (-10) |
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| 105 | #define SYSCALL_ILLEGAL_CLUSTER_COORDINATES (-11) |
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| 106 | #define SYSCALL_VSEG_NOT_FOUND (-12) |
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| 107 | #define SYSCALL_UNDEFINED_SYSTEM_CALL (-13) |
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| 108 | #define SYSCALL_COPROCESSOR_NOT_FOUND (-14) |
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| 109 | #define SYSCALL_COPROCESSOR_ILLEGAL_MODE (-15) |
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| 110 | #define SYSCALL_COPROCESSOR_NON_ALLOCATED (-16) |
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| 111 | #define SYSCALL_CHANNEL_ALREADY_ALLOCATED (-17) |
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| 112 | #define SYSCALL_NO_CHANNEL_AVAILABLE (-18) |
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| 113 | #define SYSCALL_CHANNEL_NON_ALLOCATED (-19) |
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| 114 | #define SYSCALL_ILLEGAL_XY_ARGUMENTS (-20) |
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| 115 | #define SYSCALL_OUT_OF_KERNEL_HEAP_MEMORY (-21) |
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| 116 | #define SYSCALL_ADDRESS_NON_ALIGNED (-22) |
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| 117 | #define SYSCALL_ADDRESS_NON_USER_ACCESSIBLE (-23) |
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| 118 | #define SYSCALL_MISSING_INITIALISATION (-24) |
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| 119 | #define SYSCALL_SHARED_PERIPHERAL_BUSY (-25) |
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| 120 | |
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| 121 | //////////////////////////////////////////////////////////////////////////// |
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| 122 | // Command values for the giet_pthread_control() syscall |
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| 123 | // These define must be synchronized with values in the sys_handler.h file |
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| 124 | //////////////////////////////////////////////////////////////////////////// |
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| 125 | |
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| 126 | #define THREAD_CMD_PAUSE 0 |
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| 127 | #define THREAD_CMD_RESUME 1 |
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| 128 | #define THREAD_CMD_CONTEXT 2 |
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| 129 | |
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| 130 | //////////////////////////////////////////////////////////////////////////// |
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[368] | 131 | // NULL pointer definition |
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[521] | 132 | //////////////////////////////////////////////////////////////////////////// |
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[368] | 133 | |
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| 134 | #define NULL (void *)0 |
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| 135 | |
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[521] | 136 | //////////////////////////////////////////////////////////////////////////// |
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[258] | 137 | // This generic C function is used to implement all system calls. |
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| 138 | // It writes the system call arguments in the proper registers, |
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| 139 | // and tells GCC what has been modified by system call execution. |
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[438] | 140 | // Returns -1 to signal an error. |
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[521] | 141 | //////////////////////////////////////////////////////////////////////////// |
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[258] | 142 | static inline int sys_call( int call_no, |
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| 143 | int arg_0, |
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| 144 | int arg_1, |
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| 145 | int arg_2, |
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| 146 | int arg_3 ) |
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| 147 | { |
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| 148 | register int reg_no_and_output asm("v0") = call_no; |
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| 149 | register int reg_a0 asm("a0") = arg_0; |
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| 150 | register int reg_a1 asm("a1") = arg_1; |
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| 151 | register int reg_a2 asm("a2") = arg_2; |
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| 152 | register int reg_a3 asm("a3") = arg_3; |
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| 153 | |
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| 154 | asm volatile( |
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| 155 | "syscall" |
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[345] | 156 | : "+r" (reg_no_and_output), /* input/output argument */ |
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| 157 | "+r" (reg_a0), |
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| 158 | "+r" (reg_a1), |
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| 159 | "+r" (reg_a2), |
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| 160 | "+r" (reg_a3), |
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| 161 | "+r" (reg_no_and_output) |
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| 162 | : /* input arguments */ |
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[258] | 163 | : "memory", |
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| 164 | /* These persistant registers will be saved on the stack by the |
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| 165 | * compiler only if they contain relevant data. */ |
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| 166 | "at", |
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| 167 | "v1", |
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| 168 | "ra", |
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| 169 | "t0", |
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| 170 | "t1", |
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| 171 | "t2", |
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| 172 | "t3", |
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| 173 | "t4", |
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| 174 | "t5", |
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| 175 | "t6", |
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| 176 | "t7", |
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| 177 | "t8", |
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| 178 | "t9" |
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| 179 | ); |
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[345] | 180 | return (volatile int)reg_no_and_output; |
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[258] | 181 | } |
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| 182 | |
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| 183 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 184 | // MIPS32 related system calls |
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| 185 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 186 | |
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[431] | 187 | extern void giet_proc_xyp( unsigned int* cluster_x, |
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| 188 | unsigned int* cluster_y, |
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| 189 | unsigned int* lpid ); |
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[382] | 190 | |
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[438] | 191 | extern unsigned int giet_proctime(); |
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| 192 | |
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| 193 | extern unsigned int giet_rand(); |
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| 194 | |
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[382] | 195 | ////////////////////////////////////////////////////////////////////////// |
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[709] | 196 | // Threads related system calls |
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[382] | 197 | ////////////////////////////////////////////////////////////////////////// |
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| 198 | |
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[709] | 199 | typedef unsigned int pthread_t; |
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[382] | 200 | |
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[709] | 201 | typedef unsigned int pthread_attr_t; |
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[438] | 202 | |
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[709] | 203 | extern int giet_pthread_create( pthread_t* trdid, |
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| 204 | pthread_attr_t* attr, |
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| 205 | void* function, |
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| 206 | void* ptr ); |
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[438] | 207 | |
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[709] | 208 | extern void giet_pthread_exit( void* string ); |
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[647] | 209 | |
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[709] | 210 | extern int giet_pthread_join( pthread_t trdid, |
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| 211 | void** ptr ); |
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[647] | 212 | |
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[709] | 213 | extern int giet_pthread_kill( pthread_t thread_id, |
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| 214 | int signal ); |
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[647] | 215 | |
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[709] | 216 | extern void giet_pthread_yield(); |
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[689] | 217 | |
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[709] | 218 | extern void giet_pthread_assert( unsigned int condition, |
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| 219 | char* string ); |
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| 220 | |
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[713] | 221 | extern void giet_pthread_control( unsigned int command, |
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| 222 | char* vspace_name, |
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| 223 | char* thread_name ); |
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[709] | 224 | |
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[382] | 225 | ////////////////////////////////////////////////////////////////////////// |
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[647] | 226 | // Application related system calls |
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| 227 | ////////////////////////////////////////////////////////////////////////// |
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| 228 | |
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| 229 | extern int giet_kill_application( char* name ); |
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| 230 | |
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| 231 | extern int giet_exec_application( char* name ); |
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| 232 | |
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[713] | 233 | extern void giet_applications_status( char* name ); |
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[709] | 234 | |
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[647] | 235 | ////////////////////////////////////////////////////////////////////////// |
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[521] | 236 | // Coprocessors related system calls |
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| 237 | ////////////////////////////////////////////////////////////////////////// |
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| 238 | |
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| 239 | // this structure is used by the giet_coproc_channel_init() |
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| 240 | // system call to specify the communication channel parameters. |
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| 241 | typedef struct giet_coproc_channel |
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| 242 | { |
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| 243 | unsigned int channel_mode; // MWMR / DMA_IRQ / DMA_NO_IRQ |
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| 244 | unsigned int buffer_size; // memory buffer size |
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| 245 | unsigned int buffer_vaddr; // memory buffer virtual address |
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| 246 | unsigned int mwmr_vaddr; // MWMR descriptor virtual address |
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| 247 | unsigned int lock_vaddr; // lock for MWMR virtual address |
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| 248 | } giet_coproc_channel_t; |
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| 249 | |
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| 250 | extern void giet_coproc_alloc( unsigned int coproc_type, |
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[558] | 251 | unsigned int* coproc_info ); |
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[521] | 252 | |
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[558] | 253 | extern void giet_coproc_release( unsigned int coproc_reg_index ); |
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[521] | 254 | |
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[558] | 255 | extern void giet_coproc_channel_init( unsigned int channel, |
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[521] | 256 | giet_coproc_channel_t* desc ); |
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| 257 | |
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[558] | 258 | extern void giet_coproc_run( unsigned int coproc_reg_index ); |
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[521] | 259 | |
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[558] | 260 | extern void giet_coproc_completed(); |
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[521] | 261 | |
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| 262 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 263 | // TTY device related system calls |
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| 264 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 265 | |
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[671] | 266 | extern void giet_tty_alloc( unsigned int shared ); |
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[438] | 267 | |
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[295] | 268 | extern void giet_tty_printf( char* format, ... ); |
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[258] | 269 | |
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[295] | 270 | extern void giet_tty_getc( char* byte ); |
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[258] | 271 | |
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[295] | 272 | extern void giet_tty_gets( char* buf, unsigned int bufsize ); |
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[258] | 273 | |
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[295] | 274 | extern void giet_tty_getw( unsigned int* val ); |
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[258] | 275 | |
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[295] | 276 | ////////////////////////////////////////////////////////////////////////// |
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| 277 | // TIMER device related system calls |
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| 278 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 279 | |
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[438] | 280 | extern void giet_timer_alloc(); |
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[258] | 281 | |
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[438] | 282 | extern void giet_timer_start( unsigned int period ); |
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| 283 | |
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[295] | 284 | extern void giet_timer_stop(); |
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[258] | 285 | |
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| 286 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 287 | // Frame buffer device related system calls |
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| 288 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 289 | |
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[713] | 290 | extern void giet_fbf_size(); |
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| 291 | |
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| 292 | extern void giet_fbf_alloc(); |
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| 293 | |
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[438] | 294 | extern void giet_fbf_cma_alloc(); |
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[258] | 295 | |
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[614] | 296 | extern void giet_fbf_cma_init_buf( void* buf0_vbase, |
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| 297 | void* buf1_vbase, |
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| 298 | void* sts0_vaddr, |
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| 299 | void* sts1_vaddr ); |
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[258] | 300 | |
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[614] | 301 | extern void giet_fbf_cma_start( unsigned int length ); |
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| 302 | |
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[438] | 303 | extern void giet_fbf_cma_display( unsigned int buffer ); |
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[258] | 304 | |
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[438] | 305 | extern void giet_fbf_cma_stop(); |
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[258] | 306 | |
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[438] | 307 | extern void giet_fbf_sync_read( unsigned int offset, |
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| 308 | void* buffer, |
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| 309 | unsigned int length ); |
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[258] | 310 | |
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[438] | 311 | extern void giet_fbf_sync_write( unsigned int offset, |
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| 312 | void* buffer, |
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| 313 | unsigned int length ); |
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| 314 | |
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[258] | 315 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 316 | // NIC related system calls |
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| 317 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 318 | |
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[709] | 319 | extern void giet_nic_rx_alloc( unsigned int xmax, unsigned int ymax ); |
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[258] | 320 | |
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[709] | 321 | extern void giet_nic_tx_alloc( unsigned int xmax, unsigned int ymax ); |
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[258] | 322 | |
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[709] | 323 | extern void giet_nic_rx_start(); |
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[438] | 324 | |
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[709] | 325 | extern void giet_nic_tx_start(); |
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[450] | 326 | |
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[709] | 327 | extern void giet_nic_rx_move( void* buffer ); |
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[450] | 328 | |
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[709] | 329 | extern void giet_nic_tx_move( void* buffer ); |
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[450] | 330 | |
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[709] | 331 | extern void giet_nic_rx_stop(); |
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[450] | 332 | |
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[709] | 333 | extern void giet_nic_tx_stop(); |
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[450] | 334 | |
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[709] | 335 | extern void giet_nic_rx_stats(); |
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[461] | 336 | |
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[709] | 337 | extern void giet_nic_tx_stats(); |
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[461] | 338 | |
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[709] | 339 | extern void giet_nic_rx_clear(); |
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[468] | 340 | |
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[709] | 341 | extern void giet_nic_tx_clear(); |
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[468] | 342 | |
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[258] | 343 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 344 | // FAT related system calls |
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| 345 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 346 | |
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[588] | 347 | extern int giet_fat_open( char* pathname, |
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| 348 | unsigned int flags ); |
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[258] | 349 | |
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[588] | 350 | extern int giet_fat_close( unsigned int fd_id ); |
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[258] | 351 | |
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[659] | 352 | extern int giet_fat_file_info( unsigned int fd_id, |
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| 353 | fat_file_info_t* info ); |
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[258] | 354 | |
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[588] | 355 | extern int giet_fat_read( unsigned int fd_id, |
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| 356 | void* buffer, |
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| 357 | unsigned int count ); |
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[258] | 358 | |
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[588] | 359 | extern int giet_fat_write( unsigned int fd, |
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| 360 | void* buffer, |
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| 361 | unsigned int count ); |
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[260] | 362 | |
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[588] | 363 | extern int giet_fat_lseek( unsigned int fd, |
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| 364 | unsigned int offset, |
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| 365 | unsigned int whence ); |
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[258] | 366 | |
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[588] | 367 | extern int giet_fat_remove( char* pathname, |
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| 368 | unsigned int should_be_dir ); |
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| 369 | |
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| 370 | extern int giet_fat_rename( char* old_path, |
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| 371 | char* new_path ); |
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| 372 | |
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| 373 | extern int giet_fat_mkdir( char* pathname ); |
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| 374 | |
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[659] | 375 | extern int giet_fat_opendir( char* pathname ); |
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| 376 | |
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| 377 | extern int giet_fat_closedir( unsigned int fd_id ); |
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| 378 | |
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| 379 | extern int giet_fat_readdir( unsigned int fd_id, |
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| 380 | fat_dirent_t* entry ); |
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| 381 | |
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[258] | 382 | ////////////////////////////////////////////////////////////////////////// |
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[382] | 383 | // Miscelaneous system calls |
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| 384 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 385 | |
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[501] | 386 | extern void giet_procs_number( unsigned int* x_size, |
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| 387 | unsigned int* y_size, |
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| 388 | unsigned int* nprocs ); |
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[438] | 389 | |
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[295] | 390 | extern void giet_vobj_get_vbase( char* vspace_name, |
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| 391 | char* vobj_name, |
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| 392 | unsigned int* vobj_vaddr); |
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[258] | 393 | |
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[438] | 394 | extern void giet_vobj_get_length( char* vspace_name, |
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| 395 | char* vobj_name, |
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| 396 | unsigned int* vobj_vaddr); |
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[295] | 397 | |
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| 398 | extern void giet_heap_info( unsigned int* vaddr, |
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[368] | 399 | unsigned int* length, |
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| 400 | unsigned int x, |
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| 401 | unsigned int y ); |
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[295] | 402 | |
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[390] | 403 | extern void giet_get_xy( void* ptr, |
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| 404 | unsigned int* px, |
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| 405 | unsigned int* py ); |
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| 406 | |
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[258] | 407 | #endif |
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| 408 | |
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| 409 | // Local Variables: |
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| 410 | // tab-width: 4 |
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| 411 | // c-basic-offset: 4 |
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| 412 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
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| 413 | // indent-tabs-mode: nil |
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| 414 | // End: |
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| 415 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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| 416 | |
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