kernel/include/system.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #ifndef __SYSTEM_H
  22 #define __SYSTEM_H
  23
  24 #include "fdc.h"
  25 #include "mytypes.h"
  26 #include "dev.h"
  27 #include "user.h"
  28 #include <tty.h>
  29 #include "partition.h"
  30 #include "file.h"
  31 #include "time.h"
  32 #include "_size_t.h"
  33 #include "../drivers/char/video/video.h"
  34 #include "elf.h"
  35 #include "paging.h"
  36
  37 /* irq0 timer */
  38 #define HZ              1000
  39
  40 /* kernel attributes */
  41 unsigned kernel_attr;
  42
  43 #define KERNEL_LIVE     0x01
  44 #define KERNEL_18HZ     0x02
  45 #define KERNEL_NOHDD    0x04
  46 #define KERNEL_NOATA    0x08
  47 #define KERNEL_NOFLOPPY 0x10
  48 #define KERNEL_NOCDROM  0x20
  49
  50
  51 #define CONSOLE_LOG     16
  52
  53 //#define swap8(x) ({unsigned _x:4 = (x); (((_x)>>4)&0xf) | (((_x)<<4)&0xf0); })
  54
  55 #define swap16(x) ({unsigned _x = (x); (((_x)>>8)&0xff) | (((_x)<<8)&0xff00); })
  56
  57 #define swap32(x) ({\
  58         unsigned _x = (x); \
  59         (((_x)>>24)&0xff)\
  60         |\
  61         (((_x)>>8)&0xff00)\
  62         |\
  63         (((_x)<<8)&0xff0000)\
  64         |\
  65         (((_x)<<24)&0xff000000);\
  66 })
  67
  68 #define swap64(_v) (((unsigned long)swap32((unsigned)(_v))<<32)|(unsigned long)swap32((unsigned)((_v)>>32)))
  69
  70 unsigned debug;         // developer mode
  71
  72 unsigned long long ctps;        // cpu ticks per second
  73
  74 tty_t *currtty;
  75
  76 partition_t *curr_part;
  77
  78 unsigned int fd_count;
  79
  80 tm *realtime;
  81
  82 page_dir_t *page_cover_curr;
  83
  84 unsigned char *kbd_layout[2];
  85
  86 extern unsigned short *vesafb;
  87
  88 #define KBD_MAX_QUAUE 16
  89 typedef struct
  90 {
  91         char key[KBD_MAX_QUAUE];
  92         int p;
  93         unsigned state[KBD_MAX_QUAUE];
  94 } kbd_quaue;
  95
  96 /* memory vars */
  97 unsigned short mem_ext;
  98
  99 /* fs directory structure */
 100 struct dir {
 101         char name[10];
 102         int read;
 103         int hidden;
 104         int system;
 105         int volume;
 106         int dir;
 107         int bin;
 108         unsigned int start;
 109 } dir[223];
 110
 111 unsigned char *file_cache;
 112
 113 /** externs **/
 114
 115 /* init.c */
 116 extern int init ();
 117
 118 /* kmem.c */
 119 extern void *malloc (unsigned size);
 120 extern void *realloc(void *blk, unsigned size);
 121 extern void free (void *blk);
 122
 123 extern unsigned int init_mm ();
 124
 125 /* protmem.c */
 126 extern void *memcpy_to_user (void *dest, const void *src, size_t count);
 127 extern void *memcpy_from_user (void *dest, const void *src, size_t count);
 128 extern unsigned memtest_data (void *src, void *data, size_t offset);
 129
 130 /* console.c */
 131 extern unsigned int init_console ();
 132 extern void console (int i);
 133
 134 /* elf.c */
 135 extern int exec_elf (unsigned char *image, unsigned *entry, unsigned *elf_data, unsigned *elf_data_off, unsigned *elf_bss);
 136 extern int flush_elf ();
 137
 138 /* exec.c */
 139 extern bool exec (partition_t *p, unsigned char *fi);
 140
 141 /* keyboard.c */
 142 extern unsigned keyboard_setlayout (char *layout);
 143 extern unsigned keyboard_getlayout (char *layout);
 144
 145 extern char getkey ();
 146 extern void setkey (char key);
 147
 148 extern unsigned int init_tasks (void);
 149 extern unsigned sched_lock ();
 150 extern unsigned sched_unlock ();
 151 extern void schedule (void);
 152
 153
 154 extern void uptime (void);
 155
 156 /* fat.c */
 157 extern void read_dir (int aa);
 158 extern unsigned long read_file (int aa);
 159
 160 /* ls.c */
 161 extern int ls (unsigned char* fi);
 162
 163 /* cd.c */
 164 extern int cd (unsigned char* fi);
 165
 166 /* cat.c */
 167 extern int cat (partition_t *p, unsigned char *fi);
 168
 169 extern int read (unsigned fd, void *buf, unsigned len);
 170
 171 /* fopen.c */
 172 extern FILE *fopen (const char *filename, const char *mode);
 173
 174 /* fputs.c */
 175 extern char *fgets (char *string, int n, FILE *file);
 176
 177 /* fclose.c */
 178 extern int fclose (FILE *file);
 179
 180 /* keyboard.c */
 181 extern unsigned int keyboard_install ();
 182
 183 /* arch depend rtc.c */
 184 extern tm *rtc_getcurrtime ();
 185
 186 /* arch depend task.c */
 187 extern unsigned arch_task_init (task_t *task, unsigned entry);
 188 extern unsigned arch_task_set (task_t *task);
 189 extern unsigned arch_task_switch (task_t *task);
 190
 191 /* arch depend arch.c */
 192 extern unsigned int_enable ();
 193 extern unsigned int_disable ();
 194 extern unsigned init_arch ();
 195
 196 /* arch depend elf*.c */
 197 extern unsigned arch_elf_detect (elf_file_t *file);
 198
 199 #endif