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  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   6  *
   7  *  This program is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation, either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21
  22 #ifndef __SYSTEM_H
  23 #define __SYSTEM_H
  24
  25 #include "fdc.h"
  26 #include "mytypes.h"
  27 #include "dev.h"
  28 #include "user.h"
  29 #include <tty.h>
  30 #include "partition.h"
  31 #include "file.h"
  32 #include "time.h"
  33 #include "_size_t.h"
  34 #include "../drivers/char/video/video.h"
  35 #include "elf.h"
  36 #include "paging.h"
  37
  38 /* irq0 timer */
  39 #define HZ              1000
  40
  41 /* kernel attributes */
  42 unsigned kernel_attr;
  43
  44 #define KERNEL_LIVE     0x01
  45 #define KERNEL_18HZ     0x02
  46 #define KERNEL_NOHDD    0x04
  47 #define KERNEL_NOATA    0x08
  48 #define KERNEL_NOFLOPPY 0x10
  49 #define KERNEL_NOCDROM  0x20
  50 #define KERNEL_NOETH    0x40
  51 #define KERNEL_NOVESA   0x80
  52
  53
  54 #define swap16(x) ({unsigned _x = (x); (((_x)>>8)&0xff) | (((_x)<<8)&0xff00); })
  55
  56 #define swap32(x) ({\
  57         unsigned _x = (x); \
  58         (((_x)>>24)&0xff)\
  59         |\
  60         (((_x)>>8)&0xff00)\
  61         |\
  62         (((_x)<<8)&0xff0000)\
  63         |\
  64         (((_x)<<24)&0xff000000);\
  65 })
  66
  67 #define swap64(_v) (((unsigned long)swap32((unsigned)(_v))<<32)|(unsigned long)swap32((unsigned)((_v)>>32)))
  68
  69 unsigned debug;                 // developer mode
  70
  71 unsigned long long ctps;        // cpu ticks per second
  72
  73 tty_t *currtty;
  74
  75 partition_t *curr_part;
  76
  77 unsigned int fd_count;
  78
  79 page_dir_t *page_cover_curr;
  80
  81 unsigned char *kbd_layout[2];
  82
  83 extern unsigned short *vesafb;
  84
  85 #define KBD_MAX_QUAUE 16
  86 typedef struct
  87 {
  88         char key[KBD_MAX_QUAUE];
  89         int p;
  90         //unsigned char state[KBD_MAX_QUAUE];
  91 } kbd_quaue;
  92
  93 /* memory vars */
  94 unsigned short mem_ext;
  95
  96 /* fs directory structure */
  97 struct dir {
  98         char name[10];
  99         int read;
 100         int hidden;
 101         int system;
 102         int volume;
 103         int dir;
 104         int bin;
 105         unsigned int start;
 106 } dir[223];
 107
 108 unsigned char *file_cache;
 109 unsigned long file_cache_id;
 110
 111 /** externs **/
 112
 113 /* init.c */
 114 extern int init ();
 115
 116 /* kmem.c */
 117 extern void *malloc (unsigned size);
 118 extern void *realloc(void *blk, unsigned size);
 119 extern void free (void *blk);
 120 extern void *kmalloc (unsigned size);
 121 extern void *krealloc(void *blk, unsigned size);
 122 extern void kfree (void *blk);
 123
 124 extern unsigned int init_mm ();
 125
 126 /* pmem.c */
 127 extern void *pmalloc (size_t size);
 128 extern void pfree (void *blk);
 129 extern void *palign (void *p);
 130
 131 /* swmem.c */
 132 extern void *swmalloc (unsigned size);
 133 extern unsigned swfree (void *ptr, unsigned size);
 134 extern unsigned int swmem_init ();
 135
 136 /* protmem.c */
 137 extern void *memcpy_to_user (void *dest, const void *src, size_t count);
 138 extern void *memcpy_from_user (void *dest, const void *src, size_t count);
 139 extern unsigned memtest_data (void *src, void *data, size_t offset);
 140
 141 /* console.c */
 142 extern unsigned int init_console ();
 143 extern void console (int i);
 144
 145 /* elf.c */
 146 extern int exec_elf (unsigned char *image, unsigned *entry, unsigned *elf_data, unsigned *elf_data_off, unsigned *elf_bss);
 147 extern int flush_elf ();
 148
 149 /* exec.c */
 150 extern bool exec (partition_t *p, unsigned char *fi);
 151
 152 /* keyboard.c */
 153 extern unsigned keyboard_setlayout (char *layout);
 154 extern unsigned keyboard_getlayout (char *layout);
 155
 156 extern char getkey ();
 157 extern void setkey (char key);
 158
 159 extern unsigned int init_tasks (void);
 160 extern unsigned sched_lock ();
 161 extern unsigned sched_unlock ();
 162 extern void schedule (void);
 163
 164 /* video.c */
 165 extern unsigned char vgagui;
 166
 167 extern void uptime (void);
 168
 169 /* fat.c */
 170 extern unsigned read_dir (int aa);
 171 extern unsigned long read_file (int aa);
 172
 173 /* ls.c */
 174 extern int ls (unsigned char *fi);
 175
 176 /* cd.c */
 177 extern int cd (unsigned char *fi);
 178
 179 /* cp.c */
 180 extern int cp (unsigned char *fi, unsigned char *fo);
 181
 182 /* cat.c */
 183 extern int cat (unsigned char *fi);
 184
 185 /* read.c */
 186 extern int read (unsigned fd, void *buf, unsigned len);
 187
 188 /* fopen.c */
 189 extern FILE *fopen (const char *filename, const char *mode);
 190
 191 /* fputs.c */
 192 extern char *fgets (char *string, int n, FILE *file);
 193
 194 /* fclose.c */
 195 extern int fclose (FILE *file);
 196
 197 /* keyboard.c */
 198 extern unsigned int init_keyboard ();
 199
 200 /* arch depend rtc.c */
 201 extern tm *rtc_getcurrtime ();
 202
 203 /* arch depend task.c */
 204 extern unsigned arch_task_init (task_t *task, unsigned entry);
 205 extern unsigned arch_task_set (task_t *task);
 206 extern unsigned arch_task_switch (task_t *task);
 207
 208 /* arch depend arch.c */
 209 extern unsigned int_enable ();
 210 extern unsigned int_disable ();
 211 extern unsigned arch_cpu_hlt ();
 212 extern unsigned init_arch ();
 213
 214 /* arch depend elf*.c */
 215 extern unsigned arch_elf_detect (elf_file_t *file);
 216
 217 #endif