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 "_null.h"
  34 #include "_size_t.h"
  35 #include "../drivers/char/video/video.h"
  36 #include "elf.h"
  37 #include "paging.h"
  38
  39 /* irq0 timer */
  40 #define HZ              1000
  41
  42 /* kernel attributes */
  43 unsigned kernel_attr;
  44
  45 #define KERNEL_LIVE     0x01
  46 #define KERNEL_18HZ     0x02
  47 #define KERNEL_NOHDD    0x04
  48 #define KERNEL_NOATA    0x08
  49 #define KERNEL_NOFLOPPY 0x10
  50 #define KERNEL_NOCDROM  0x20
  51 #define KERNEL_NOETH    0x40
  52 #define KERNEL_NOVESA   0x80
  53
  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 page_dir_t *page_cover_curr;
  81
  82 unsigned char *kbd_layout[2];
  83
  84 extern unsigned short *vesafb;
  85
  86 #define KBD_MAX_QUAUE 16
  87 typedef struct
  88 {
  89         char key[KBD_MAX_QUAUE];
  90         int p;
  91         //unsigned char state[KBD_MAX_QUAUE];
  92 } kbd_quaue;
  93
  94 /* memory vars */
  95 unsigned short mem_ext;
  96
  97 /* fs directory structure */
  98 struct dir {
  99         char name[10];
 100         int read;
 101         int hidden;
 102         int system;
 103         int volume;
 104         int dir;
 105         int bin;
 106         unsigned int start;
 107 } dir[223];
 108
 109 unsigned char *file_cache;
 110 unsigned long file_cache_id;
 111
 112 /** externs **/
 113
 114 /* init.c */
 115 extern int init ();
 116
 117 /* kmem.c */
 118 extern void *malloc (unsigned size);
 119 extern void *realloc(void *blk, unsigned size);
 120 extern void free (void *blk);
 121 extern void *kmalloc (unsigned size);
 122 extern void *krealloc(void *blk, unsigned size);
 123 extern void kfree (void *blk);
 124
 125 extern unsigned int init_mm ();
 126
 127 /* pmem.c */
 128 extern void *pmalloc (size_t size);
 129 extern void pfree (void *blk);
 130 extern void *palign (void *p);
 131
 132 /* swmem.c */
 133 extern void *swmalloc (unsigned size);
 134 extern unsigned swfree (void *ptr, unsigned size);
 135 extern unsigned int swmem_init ();
 136
 137 /* protmem.c */
 138 extern void *memcpy_to_user (void *dest, const void *src, size_t count);
 139 extern void *memcpy_from_user (void *dest, const void *src, size_t count);
 140 extern unsigned memtest_data (void *src, void *data, size_t offset);
 141
 142 /* console.c */
 143 extern unsigned int init_console ();
 144 extern void console (int i);
 145
 146 /* elf.c */
 147 extern int exec_elf (unsigned char *image, unsigned *entry, unsigned *elf_data, unsigned *elf_data_off, unsigned *elf_bss);
 148 extern int flush_elf ();
 149
 150 /* exec.c */
 151 extern bool exec (partition_t *p, unsigned char *fi);
 152
 153 /* keyboard.c */
 154 extern unsigned keyboard_setlayout (char *layout);
 155 extern unsigned keyboard_getlayout (char *layout);
 156
 157 extern char getkey ();
 158 extern void setkey (char key);
 159
 160 extern unsigned int init_tasks (void);
 161 extern unsigned sched_lock ();
 162 extern unsigned sched_unlock ();
 163 extern void schedule (void);
 164
 165 /* video.c */
 166 extern unsigned char vgagui;
 167
 168 extern void uptime (void);
 169
 170 /* fat.c */
 171 extern unsigned read_dir (int aa);
 172 extern unsigned long read_file (int aa);
 173
 174 /* ls.c */
 175 extern int ls (unsigned char *fi);
 176
 177 /* cd.c */
 178 extern int cd (unsigned char *fi);
 179
 180 /* cp.c */
 181 extern int cp (unsigned char *fi, unsigned char *fo);
 182
 183 /* cat.c */
 184 extern int cat (unsigned char *fi);
 185
 186 /* read.c */
 187 extern int read (unsigned fd, void *buf, unsigned len);
 188
 189 /* fopen.c */
 190 extern FILE *fopen (const char *filename, const char *mode);
 191
 192 /* fputs.c */
 193 extern char *fgets (char *string, int n, FILE *file);
 194
 195 /* fclose.c */
 196 extern int fclose (FILE *file);
 197
 198 /* keyboard.c */
 199 extern unsigned int init_keyboard ();
 200
 201 /* arch depend rtc.c */
 202 extern tm *rtc_getcurrtime ();
 203
 204 /* arch depend task.c */
 205 extern unsigned arch_task_init (task_t *task, unsigned entry);
 206 extern unsigned arch_task_set (task_t *task);
 207 extern unsigned arch_task_switch (task_t *task);
 208
 209 /* arch depend arch.c */
 210 extern unsigned int_enable ();
 211 extern unsigned int_disable ();
 212 extern unsigned arch_cpu_hlt ();
 213 extern unsigned init_arch ();
 214
 215 /* arch depend elf*.c */
 216 extern unsigned arch_elf_detect (elf_file_t *file);
 217
 218 #endif