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1 //
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2 // a definition of data structure/methods
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3 //
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4 #ifndef INCLUDE_DEFS_H
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5 #define INCLUDE_DEFS_H
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6
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7 #define UMAX(a, b) ((uint)(a) > (uint)(b) ? (uint)(a):(uint)(b))
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8 #define UMIN(a, b) ((uint)(a) > (uint)(b) ? (uint)(b):(uint)(a))
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9
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10 // number of elements in fixed-size array
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11 #define NELEM(x) (sizeof(x)/sizeof((x)[0]))
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12
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13 struct buf;
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14 struct context;
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15 struct file;
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16 struct inode;
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17 struct pipe;
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18 struct proc;
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19 struct spinlock;
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20 struct stat;
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21 struct superblock;
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22 struct trapframe;
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23
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24 typedef uint32 pte_t;
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25 typedef uint32 pde_t;
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26 extern uint32 _kernel_pgtbl;
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27 typedef void (*ISR) (struct trapframe *tf, int n);
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28
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29 // arm.c
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30 void set_stk(uint mode, uint addr);
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31 void cli (void);
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32 void sti (void);
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33 uint spsr_usr();
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34 int int_enabled();
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35 void pushcli(void);
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36 void popcli(void);
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37 void getcallerpcs(void *, uint*);
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38 void* get_fp (void);
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39 void show_callstk (char *);
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40
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41
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42 // bio.c
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43 void binit(void);
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44 struct buf* bread(uint, uint);
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45 void brelse(struct buf*);
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46 void bwrite(struct buf*);
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47
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48 // buddy.c
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49 void kmem_init (void);
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50 void kmem_init2(void *vstart, void *vend);
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51 void* kmalloc (int order);
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52 void kfree (void *mem, int order);
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53 void free_page(void *v);
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54 void* alloc_page (void);
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55 void kmem_test_b (void);
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56 int get_order (uint32 v);
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57
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58 // console.c
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59 void consoleinit(void);
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60 void cprintf(char*, ...);
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61 void consoleintr(int(*)(void));
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30
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62 __code cbc_panic(char*) __attribute__((noreturn));
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63 void panic(char*) __attribute__((noreturn));
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64
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65 // exec.c
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66 int exec(char*, char**);
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67
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68 // file.c
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69 struct file* filealloc(void);
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70 void fileclose(struct file*);
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71 struct file* filedup(struct file*);
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72 void fileinit(void);
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73 __code cbc_fileread (struct file*, char*, int, __code (*)(int));
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74 int fileread(struct file*, char*, int n);
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75 int filestat(struct file*, struct stat*);
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76 int filewrite(struct file*, char*, int n);
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77
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78 // fs.c
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79 void readsb(int dev, struct superblock *sb);
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80 int dirlink(struct inode*, char*, uint);
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81 struct inode* dirlookup(struct inode*, char*, uint*);
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82 struct inode* ialloc(uint, short);
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83 struct inode* idup(struct inode*);
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84 void iinit(void);
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85 void ilock(struct inode*);
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86 void iput(struct inode*);
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87 void iunlock(struct inode*);
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88 void iunlockput(struct inode*);
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89 void iupdate(struct inode*);
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90 int namecmp(const char*, const char*);
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91 struct inode* namei(char*);
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92 struct inode* nameiparent(char*, char*);
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93 __code cbc_readi (struct inode*, char*, uint, uint, __code (*)(int));
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94 int readi(struct inode*, char*, uint, uint);
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95 void stati(struct inode*, struct stat*);
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96 int writei(struct inode*, char*, uint, uint);
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97
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98 // ide.c
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99 void ideinit(void);
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100 void iderw(struct buf*);
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101
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102 // kalloc.c
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103 /*char* kalloc(void);
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104 void kfree(char*);
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105 void kinit1(void*, void*);
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106 void kinit2(void*, void*);
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107 void kmem_init (void);*/
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108
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109 // log.c
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110 void initlog(void);
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111 void log_write(struct buf*);
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112 void begin_trans();
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113 void commit_trans();
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114
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115 // picirq.c
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116 void pic_enable(int, ISR);
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117 void pic_init(void*);
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118 void pic_dispatch (struct trapframe *tp);
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119
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120 // pipe.c
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121 int pipealloc(struct file**, struct file**);
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122 void pipeclose(struct pipe*, int);
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123 int piperead(struct pipe*, char*, int);
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124 int pipewrite(struct pipe*, char*, int);
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125
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126 //PAGEBREAK: 16
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127 // proc.c
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128 struct proc* copyproc(struct proc*);
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129 void exit(void);
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130 int fork(void);
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131 int growproc(int);
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132 int kill(int);
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133 void pinit(void);
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134 void procdump(void);
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135 void scheduler(void) __attribute__((noreturn));
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136 void sched(void);
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27
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137 __code cbc_sleep(void*, struct spinlock*, __code(*next1)());
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138 void sleep(void*, struct spinlock*);
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139 void userinit(void);
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140 int wait(void);
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141 void wakeup(void*);
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142 void yield(void);
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143
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144 // swtch.S
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145 void swtch(struct context**, struct context*);
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146
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147 // spinlock.c
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148 void acquire(struct spinlock*);
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149 int holding(struct spinlock*);
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150 void initlock(struct spinlock*, char*);
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151 void release(struct spinlock*);
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152
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153 // string.c
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154 int memcmp(const void*, const void*, uint);
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155 void* memmove(void*, const void*, uint);
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156 void* memset(void*, int, uint);
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157 char* safestrcpy(char*, const char*, int);
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158 int strlen(const char*);
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159 int strncmp(const char*, const char*, uint);
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160 char* strncpy(char*, const char*, int);
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161
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162 // syscall.c
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163 int argint(int, int*);
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164 int argptr(int, char**, int);
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165 int argstr(int, char**);
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166 int fetchint(uint, int*);
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167 int fetchstr(uint, char**);
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168 void syscall(void);
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169
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170 // timer.c
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171 void timer_init(int hz);
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172 extern struct spinlock tickslock;
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173
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174 // trap.c
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175 extern uint ticks;
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176 void trap_init(void);
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177 void dump_trapframe (struct trapframe *tf);
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178
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179 // trap_asm.S
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180 void trap_reset(void);
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181 void trap_und(void);
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182 void trap_swi(void);
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183 void trap_iabort(void);
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184 void trap_dabort(void);
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185 void trap_na(void);
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186 void trap_irq(void);
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187 void trap_fiq(void);
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188
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189 // uart.c
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190 void uart_init(void*);
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191 void uartputc(int);
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192 int uartgetc(void);
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193 void micro_delay(int us);
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194 void uart_enable_rx();
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195
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196 // vm.c
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197 int allocuvm(pde_t*, uint, uint);
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198 int deallocuvm(pde_t*, uint, uint);
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199 void freevm(pde_t*);
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200 void inituvm(pde_t*, char*, uint);
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201 int loaduvm(pde_t*, char*, struct inode*, uint, uint);
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202 pde_t* copyuvm(pde_t*, uint);
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203 void switchuvm(struct proc*);
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204 int copyout(pde_t*, uint, void*, uint);
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205 void clearpteu(pde_t *pgdir, char *uva);
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206 void* kpt_alloc(void);
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207 void init_vmm (void);
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208 void kpt_freerange (uint32 low, uint32 hi);
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209 void paging_init (uint phy_low, uint phy_hi);
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210 #endif
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