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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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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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30 void* malloc(uint64_t size);
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31 void free(void* ptr);
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32
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33 // STDout funcs:
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34 void printf(const char* fmt, ... );
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35 void memset(void* ptr, uint32_t value, uint32_t num);
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36 void memcpy(void* dst, void* src, uint32_t num);
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37
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17
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38 // Screen related:
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39 void clear_screen();
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40 void init_screen();
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41 void print_string(const char *);
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42
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43 // For IO ports:
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44 uint8_t inb(uint16_t);
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45 uint16_t inw(uint16_t);
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46 void outb(uint16_t, uint8_t);
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47
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48 // Interrupt functions:
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49 void setupIDT(void);
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50 void PICremap(void);
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51
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14
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52 // ASM helper:
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53 void loadIDT(void);
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54
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55 // Panic exit:
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56 void halt(void);
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57
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17
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58 // Bochs xchg bx,bx breakpoint:
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59 void magicBochsBreak();
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60
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9
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61 // Assembler util functions:
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62 void doCPUID(int eax, int *ebx, int *ecx, int *edx);
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63
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64 // Keyboard driver:
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65 void keyboardDriverUpdate(unsigned char scancode);
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66 void timerDriverUpdate(void);
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67
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68 // Memory functions:
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69 void mappage(uint64_t address);
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70
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71 int querymode(void);
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72 int getcs(void);
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73 void loadPageTable(void* tableAddress);
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74 void enablePaging(void);
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75
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12
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76 // Variable argument list things:
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77 #define va_start(v,l) __builtin_va_start(v,l)
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78 #define va_end(v) __builtin_va_end(v)
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79 #define va_arg(v,l) __builtin_va_arg(v,l)
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80 typedef __builtin_va_list va_list;
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81
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9
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82 struct multiboot_aout_symbol_table {
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83 uint32_t tabsize;
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84 uint32_t strsize, addr, reserved;
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85 };
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86
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87 struct multiboot_info {
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88 uint32_t flags; // Multiboot flags / version
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89 uint32_t mem_lower; // available memory from BIOS
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90 uint32_t mem_upper;
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91 uint32_t boot_device;
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92 uint32_t cmdline; // COmmand line
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93 uint32_t mods_count;
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94 uint32_t mods_addr;
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95 union {
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96 struct multiboot_aout_symbol_table aout_sym;
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97 } u;
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98
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99 uint32_t mmap_length;
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100 uint32_t mmap_addr;
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101 };
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102
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103 struct memory_map {
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104 uint32_t size;
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105 uint32_t baselow, basehigh;
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106 uint32_t lenlow, lenhigh;
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107 uint32_t type;
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108 };
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109
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110 typedef struct {
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111 char name[32]; // Name of the console
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112 unsigned char screendata[80*25]; // All chars in the console!
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113 } console_t;
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114
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115 typedef struct {
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116 uint32_t esp;
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117 uint32_t ss;
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118 uint32_t kstack;
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119 uint32_t ustack;
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120 uint32_t cr3;
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121
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122 uint32_t number;
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123 uint32_t parent;
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124 uint32_t owner;
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125 uint32_t groups;
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126 uint32_t timetorun;
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127 uint32_t sleep;
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128 uint32_t priority;
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129 uint32_t filehandle;
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130 char naam[32];
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131
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132 console_t *console;
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133 } programma_t;
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134
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135 #endif
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136
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