[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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[722] | 36 | #define SYSCALL_FBF_CMA_CHECK 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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[759] | 67 | #define SYSCALL_FAT_PREAD 0x2C |
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| 68 | #define SYSCALL_FAT_MMAP 0x2D |
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| 69 | #define SYSCALL_FAT_MUNMAP 0x2E |
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[521] | 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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[759] | 131 | // Flags and protection values for the giet_fat_mmap() syscall |
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| 132 | // These define must be synchronized with values in the sys_handler.h file |
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| 133 | //////////////////////////////////////////////////////////////////////////// |
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| 134 | |
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| 135 | #define MAP_ANONYMOUS 0x01 |
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| 136 | #define MAP_FILE 0x02 |
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| 137 | #define MAP_FIXED 0x04 |
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| 138 | #define MAP_PRIVATE 0x08 |
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| 139 | #define MAP_SHARED 0x10 |
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| 140 | |
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| 141 | #define MAP_PROT_READ 0x1 |
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| 142 | #define MAP_PROT_WRITE 0x2 |
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| 143 | #define MAP_PROT_EXEC 0x4 |
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| 144 | |
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| 145 | //////////////////////////////////////////////////////////////////////////// |
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[368] | 146 | // NULL pointer definition |
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[521] | 147 | //////////////////////////////////////////////////////////////////////////// |
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[368] | 148 | |
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| 149 | #define NULL (void *)0 |
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| 150 | |
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[521] | 151 | //////////////////////////////////////////////////////////////////////////// |
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[258] | 152 | // This generic C function is used to implement all system calls. |
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| 153 | // It writes the system call arguments in the proper registers, |
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| 154 | // and tells GCC what has been modified by system call execution. |
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[438] | 155 | // Returns -1 to signal an error. |
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[521] | 156 | //////////////////////////////////////////////////////////////////////////// |
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[258] | 157 | static inline int sys_call( int call_no, |
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| 158 | int arg_0, |
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| 159 | int arg_1, |
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| 160 | int arg_2, |
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| 161 | int arg_3 ) |
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| 162 | { |
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| 163 | register int reg_no_and_output asm("v0") = call_no; |
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| 164 | register int reg_a0 asm("a0") = arg_0; |
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| 165 | register int reg_a1 asm("a1") = arg_1; |
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| 166 | register int reg_a2 asm("a2") = arg_2; |
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| 167 | register int reg_a3 asm("a3") = arg_3; |
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| 168 | |
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| 169 | asm volatile( |
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| 170 | "syscall" |
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[345] | 171 | : "+r" (reg_no_and_output), /* input/output argument */ |
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| 172 | "+r" (reg_a0), |
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| 173 | "+r" (reg_a1), |
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| 174 | "+r" (reg_a2), |
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| 175 | "+r" (reg_a3), |
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| 176 | "+r" (reg_no_and_output) |
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| 177 | : /* input arguments */ |
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[258] | 178 | : "memory", |
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| 179 | /* These persistant registers will be saved on the stack by the |
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| 180 | * compiler only if they contain relevant data. */ |
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| 181 | "at", |
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| 182 | "v1", |
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| 183 | "ra", |
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| 184 | "t0", |
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| 185 | "t1", |
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| 186 | "t2", |
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| 187 | "t3", |
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| 188 | "t4", |
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| 189 | "t5", |
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| 190 | "t6", |
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| 191 | "t7", |
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| 192 | "t8", |
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| 193 | "t9" |
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| 194 | ); |
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[345] | 195 | return (volatile int)reg_no_and_output; |
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[258] | 196 | } |
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| 197 | |
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| 198 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 199 | // MIPS32 related system calls |
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| 200 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 201 | |
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[431] | 202 | extern void giet_proc_xyp( unsigned int* cluster_x, |
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| 203 | unsigned int* cluster_y, |
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| 204 | unsigned int* lpid ); |
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[382] | 205 | |
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[438] | 206 | extern unsigned int giet_proctime(); |
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| 207 | |
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| 208 | extern unsigned int giet_rand(); |
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| 209 | |
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[382] | 210 | ////////////////////////////////////////////////////////////////////////// |
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[709] | 211 | // Threads related system calls |
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[382] | 212 | ////////////////////////////////////////////////////////////////////////// |
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| 213 | |
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[709] | 214 | typedef unsigned int pthread_t; |
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[382] | 215 | |
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[709] | 216 | typedef unsigned int pthread_attr_t; |
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[438] | 217 | |
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[709] | 218 | extern int giet_pthread_create( pthread_t* trdid, |
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| 219 | pthread_attr_t* attr, |
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| 220 | void* function, |
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| 221 | void* ptr ); |
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[438] | 222 | |
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[709] | 223 | extern void giet_pthread_exit( void* string ); |
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[647] | 224 | |
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[709] | 225 | extern int giet_pthread_join( pthread_t trdid, |
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| 226 | void** ptr ); |
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[647] | 227 | |
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[709] | 228 | extern int giet_pthread_kill( pthread_t thread_id, |
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| 229 | int signal ); |
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[647] | 230 | |
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[709] | 231 | extern void giet_pthread_yield(); |
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[689] | 232 | |
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[709] | 233 | extern void giet_pthread_assert( unsigned int condition, |
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| 234 | char* string ); |
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| 235 | |
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[713] | 236 | extern void giet_pthread_control( unsigned int command, |
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| 237 | char* vspace_name, |
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| 238 | char* thread_name ); |
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[709] | 239 | |
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[382] | 240 | ////////////////////////////////////////////////////////////////////////// |
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[647] | 241 | // Application related system calls |
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| 242 | ////////////////////////////////////////////////////////////////////////// |
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| 243 | |
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| 244 | extern int giet_kill_application( char* name ); |
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| 245 | |
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| 246 | extern int giet_exec_application( char* name ); |
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| 247 | |
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[713] | 248 | extern void giet_applications_status( char* name ); |
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[709] | 249 | |
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[647] | 250 | ////////////////////////////////////////////////////////////////////////// |
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[521] | 251 | // Coprocessors related system calls |
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| 252 | ////////////////////////////////////////////////////////////////////////// |
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| 253 | |
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| 254 | // this structure is used by the giet_coproc_channel_init() |
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| 255 | // system call to specify the communication channel parameters. |
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| 256 | typedef struct giet_coproc_channel |
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| 257 | { |
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| 258 | unsigned int channel_mode; // MWMR / DMA_IRQ / DMA_NO_IRQ |
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| 259 | unsigned int buffer_size; // memory buffer size |
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| 260 | unsigned int buffer_vaddr; // memory buffer virtual address |
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[735] | 261 | unsigned int status_vaddr; // MWMR status virtual address (12 bytes) |
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| 262 | unsigned int lock_vaddr; // MWMR lock virtual address (64 bytes) |
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[521] | 263 | } giet_coproc_channel_t; |
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| 264 | |
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[735] | 265 | extern void giet_coproc_alloc( unsigned int cluster_xy, |
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| 266 | unsigned int coproc_type, |
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[558] | 267 | unsigned int* coproc_info ); |
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[521] | 268 | |
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[735] | 269 | extern void giet_coproc_release( unsigned int cluster_xy, |
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| 270 | unsigned int coproc_type ); |
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[521] | 271 | |
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[735] | 272 | extern void giet_coproc_channel_init( unsigned int cluster_xy, |
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| 273 | unsigned int coproc_type, |
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| 274 | unsigned int channel, |
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[521] | 275 | giet_coproc_channel_t* desc ); |
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| 276 | |
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[735] | 277 | extern void giet_coproc_run( unsigned int cluster_xy, |
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| 278 | unsigned int coproc_type ); |
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[521] | 279 | |
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[735] | 280 | extern void giet_coproc_completed( unsigned int cluster_xy, |
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| 281 | unsigned int coproc_type ); |
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[521] | 282 | |
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| 283 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 284 | // TTY device related system calls |
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| 285 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 286 | |
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[671] | 287 | extern void giet_tty_alloc( unsigned int shared ); |
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[438] | 288 | |
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[295] | 289 | extern void giet_tty_printf( char* format, ... ); |
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[258] | 290 | |
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[295] | 291 | extern void giet_tty_getc( char* byte ); |
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[258] | 292 | |
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[295] | 293 | extern void giet_tty_gets( char* buf, unsigned int bufsize ); |
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[258] | 294 | |
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[295] | 295 | extern void giet_tty_getw( unsigned int* val ); |
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[258] | 296 | |
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[295] | 297 | ////////////////////////////////////////////////////////////////////////// |
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| 298 | // TIMER device related system calls |
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| 299 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 300 | |
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[438] | 301 | extern void giet_timer_alloc(); |
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[258] | 302 | |
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[438] | 303 | extern void giet_timer_start( unsigned int period ); |
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| 304 | |
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[295] | 305 | extern void giet_timer_stop(); |
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[258] | 306 | |
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| 307 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 308 | // Frame buffer device related system calls |
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| 309 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 310 | |
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[713] | 311 | extern void giet_fbf_size(); |
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| 312 | |
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| 313 | extern void giet_fbf_alloc(); |
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| 314 | |
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[722] | 315 | extern void giet_fbf_cma_alloc( unsigned int nbufs ); |
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[258] | 316 | |
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[722] | 317 | extern void giet_fbf_cma_init_buf( unsigned int index, |
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| 318 | void* buf_vbase, |
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| 319 | void* sts_vaddr ); |
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[258] | 320 | |
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[722] | 321 | extern void giet_fbf_cma_start(); |
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[614] | 322 | |
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[722] | 323 | extern void giet_fbf_cma_check( unsigned int buffer ); |
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| 324 | |
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[438] | 325 | extern void giet_fbf_cma_display( unsigned int buffer ); |
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[258] | 326 | |
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[438] | 327 | extern void giet_fbf_cma_stop(); |
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[258] | 328 | |
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[438] | 329 | extern void giet_fbf_sync_read( unsigned int offset, |
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| 330 | void* buffer, |
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| 331 | unsigned int length ); |
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[258] | 332 | |
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[438] | 333 | extern void giet_fbf_sync_write( unsigned int offset, |
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| 334 | void* buffer, |
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| 335 | unsigned int length ); |
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| 336 | |
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[258] | 337 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 338 | // NIC related system calls |
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| 339 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 340 | |
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[709] | 341 | extern void giet_nic_rx_alloc( unsigned int xmax, unsigned int ymax ); |
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[258] | 342 | |
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[709] | 343 | extern void giet_nic_tx_alloc( unsigned int xmax, unsigned int ymax ); |
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[258] | 344 | |
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[709] | 345 | extern void giet_nic_rx_start(); |
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[438] | 346 | |
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[709] | 347 | extern void giet_nic_tx_start(); |
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[450] | 348 | |
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[709] | 349 | extern void giet_nic_rx_move( void* buffer ); |
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[450] | 350 | |
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[709] | 351 | extern void giet_nic_tx_move( void* buffer ); |
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[450] | 352 | |
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[709] | 353 | extern void giet_nic_rx_stop(); |
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[450] | 354 | |
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[709] | 355 | extern void giet_nic_tx_stop(); |
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[450] | 356 | |
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[709] | 357 | extern void giet_nic_rx_stats(); |
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[461] | 358 | |
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[709] | 359 | extern void giet_nic_tx_stats(); |
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[461] | 360 | |
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[709] | 361 | extern void giet_nic_rx_clear(); |
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[468] | 362 | |
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[709] | 363 | extern void giet_nic_tx_clear(); |
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[468] | 364 | |
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[258] | 365 | ////////////////////////////////////////////////////////////////////////// |
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[295] | 366 | // FAT related system calls |
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| 367 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 368 | |
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[588] | 369 | extern int giet_fat_open( char* pathname, |
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| 370 | unsigned int flags ); |
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[258] | 371 | |
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[588] | 372 | extern int giet_fat_close( unsigned int fd_id ); |
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[258] | 373 | |
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[659] | 374 | extern int giet_fat_file_info( unsigned int fd_id, |
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| 375 | fat_file_info_t* info ); |
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[258] | 376 | |
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[588] | 377 | extern int giet_fat_read( unsigned int fd_id, |
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| 378 | void* buffer, |
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| 379 | unsigned int count ); |
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[258] | 380 | |
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[759] | 381 | extern int giet_fat_pread( unsigned int fd_id, |
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| 382 | void* buffer, |
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| 383 | unsigned int count, |
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| 384 | unsigned int offset ); |
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| 385 | |
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[588] | 386 | extern int giet_fat_write( unsigned int fd, |
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| 387 | void* buffer, |
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| 388 | unsigned int count ); |
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[260] | 389 | |
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[588] | 390 | extern int giet_fat_lseek( unsigned int fd, |
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| 391 | unsigned int offset, |
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| 392 | unsigned int whence ); |
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[258] | 393 | |
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[588] | 394 | extern int giet_fat_remove( char* pathname, |
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| 395 | unsigned int should_be_dir ); |
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| 396 | |
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| 397 | extern int giet_fat_rename( char* old_path, |
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| 398 | char* new_path ); |
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| 399 | |
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| 400 | extern int giet_fat_mkdir( char* pathname ); |
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| 401 | |
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[659] | 402 | extern int giet_fat_opendir( char* pathname ); |
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| 403 | |
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| 404 | extern int giet_fat_closedir( unsigned int fd_id ); |
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| 405 | |
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| 406 | extern int giet_fat_readdir( unsigned int fd_id, |
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| 407 | fat_dirent_t* entry ); |
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| 408 | |
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[743] | 409 | extern int giet_fat_fprintf( unsigned int fd_id, |
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| 410 | char* format, ... ); |
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| 411 | |
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[759] | 412 | extern void* giet_fat_mmap( void* vaddr, |
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| 413 | unsigned int length, |
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| 414 | unsigned int prot, |
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| 415 | unsigned int flags, |
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| 416 | unsigned int fd_id, |
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| 417 | unsigned int offset ); |
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| 418 | |
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| 419 | extern int giet_fat_munmap( void* vaddr, |
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| 420 | unsigned int length ); |
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| 421 | |
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[258] | 422 | ////////////////////////////////////////////////////////////////////////// |
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[382] | 423 | // Miscelaneous system calls |
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| 424 | ////////////////////////////////////////////////////////////////////////// |
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[258] | 425 | |
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[501] | 426 | extern void giet_procs_number( unsigned int* x_size, |
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| 427 | unsigned int* y_size, |
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| 428 | unsigned int* nprocs ); |
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[438] | 429 | |
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[295] | 430 | extern void giet_vobj_get_vbase( char* vspace_name, |
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| 431 | char* vobj_name, |
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| 432 | unsigned int* vobj_vaddr); |
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[258] | 433 | |
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[438] | 434 | extern void giet_vobj_get_length( char* vspace_name, |
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| 435 | char* vobj_name, |
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| 436 | unsigned int* vobj_vaddr); |
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[295] | 437 | |
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| 438 | extern void giet_heap_info( unsigned int* vaddr, |
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[368] | 439 | unsigned int* length, |
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| 440 | unsigned int x, |
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| 441 | unsigned int y ); |
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[295] | 442 | |
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[390] | 443 | extern void giet_get_xy( void* ptr, |
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| 444 | unsigned int* px, |
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| 445 | unsigned int* py ); |
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| 446 | |
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[258] | 447 | #endif |
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| 448 | |
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| 449 | // Local Variables: |
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| 450 | // tab-width: 4 |
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| 451 | // c-basic-offset: 4 |
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| 452 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
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| 453 | // indent-tabs-mode: nil |
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| 454 | // End: |
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| 455 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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| 456 | |
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