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9
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1 #ifndef KERNEL_H
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2 #define KERNEL_H
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3
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4 // Include common functions, available to all!
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5 #define NULL ((void*)0)
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6
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7 // Type defs:
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17
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8 typedef unsigned char uint8_t;
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9 typedef unsigned short uint16_t;
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9
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10 typedef unsigned int uint32_t;
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17
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11 typedef unsigned long int uint64_t;
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9
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12
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17
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13 // IDT related structures:
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14 typedef struct {
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15 uint16_t baseLow;
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16 uint16_t selector;
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17 uint8_t reserved1;
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18 uint8_t flags;
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19 uint16_t baseMid;
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20 uint32_t baseHigh;
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21 uint32_t reserved2;
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22 } __attribute__((packed)) IDT_entry;
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23
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24 typedef struct {
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25 uint16_t limit;
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26 uint64_t base;
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27 } __attribute__((packed)) idtPointer;
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28
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29 // memory alloc functions:
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24
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30 void init_heap();
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20
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31 void* kmalloc(uint64_t size);
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32 void kfree(void* ptr);
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33
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25
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34 // task related functions:
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35 void initialize_tasking();
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36 void new_task();
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37 void task_scheduler();
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38
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17
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39 // STDout funcs:
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40 void printf(const char* fmt, ... );
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41 void memset(void* ptr, uint32_t value, uint32_t num);
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42 void memcpy(void* dst, void* src, uint32_t num);
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24
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43 int strncmp(const char* s1, const char* s2, int size);
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44
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17
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45 // Screen related:
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46 void clear_screen();
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47 void init_screen();
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48 void print_string(const char *);
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24
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49 void set_cursor(int newrow, int newcol);
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50 void get_cursor(int *therow, int *thecol);
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51 void set_color(int forecolor, int backcolor);
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52
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53 // For IO ports:
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54 uint8_t inb(uint16_t);
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55 uint16_t inw(uint16_t);
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56 void outb(uint16_t, uint8_t);
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57
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58 // Interrupt functions:
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59 void setupIDT(void);
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60 void PICremap(void);
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61
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14
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62 // ASM helper:
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63 void loadIDT(void);
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64 uint64_t read_rip();
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65
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66 // Panic exit:
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67 void halt(void);
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24
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68 void panic(char *msg);
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14
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69
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70 // Bochs xchg bx,bx breakpoint:
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71 void magicBochsBreak();
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72
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9
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73 // Assembler util functions:
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74 void doCPUID(int eax, int *ebx, int *ecx, int *edx);
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75
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76 // Keyboard driver:
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77 void keyboardDriverUpdate(unsigned char scancode);
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24
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78 void getline(char *buffer, int len);
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79
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80 // Timer:
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81 void timerDriverUpdate(void);
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24
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82 uint64_t getTimeMS();
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83
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84 // Memory functions:
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85 void mappage(uint64_t address);
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86
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87 void loadPageTable(void* tableAddress);
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88
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12
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89 // Variable argument list things:
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90 #define va_start(v,l) __builtin_va_start(v,l)
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91 #define va_end(v) __builtin_va_end(v)
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92 #define va_arg(v,l) __builtin_va_arg(v,l)
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93 typedef __builtin_va_list va_list;
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94
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20
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95 // Multiboot structs:
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9
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96 struct multiboot_aout_symbol_table {
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97 uint32_t tabsize;
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98 uint32_t strsize, addr, reserved;
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99 };
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100
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101 struct multiboot_info {
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102 uint32_t flags; // Multiboot flags / version
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103 uint32_t mem_lower; // available memory from BIOS
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104 uint32_t mem_upper;
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105 uint32_t boot_device;
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106 uint32_t cmdline; // COmmand line
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107 uint32_t mods_count;
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108 uint32_t mods_addr;
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109 union {
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110 struct multiboot_aout_symbol_table aout_sym;
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111 } u;
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112
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113 uint32_t mmap_length;
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114 uint32_t mmap_addr;
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115 };
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116
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117 struct memory_map {
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118 uint32_t size;
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119 uint32_t baselow, basehigh;
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120 uint32_t lenlow, lenhigh;
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121 uint32_t type;
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122 };
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123
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24
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124 typedef struct
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125 {
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126 char name[32]; // Name of the console
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127 unsigned char screendata[80*25]; // All chars in the console!
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128 } console_t;
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129
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25
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130 typedef struct task_t {
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131 struct task_t* next;
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132 uint32_t kstack;
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133 uint32_t ustack;
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134
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25
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135 uint64_t cr3;
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136 uint64_t rip;
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137 uint64_t rsp;
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138 uint64_t rbp;
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139
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140 uint32_t pid;
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141 uint32_t parent;
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142 uint32_t owner;
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143 uint32_t groups;
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144 uint32_t timetorun;
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145 uint32_t sleep;
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146 uint32_t priority;
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147 uint32_t filehandle;
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148 char naam[32];
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149
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150 console_t *console;
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25
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151 } task_t;
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152
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153 #endif
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154
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