kernel/include/system.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   5  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   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_NOLIVE   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 /* debug masks */
  55 #define DBG_LIB         0x1
  56 #define DBG_STDIO       0x2
  57 #define DBG_STDLIB      0x4
  58 #define DBG_STRING      0x8
  59 #define DBG_CORE        0x10
  60 #define DBG_ENV         0x20
  61 #define DBG_CMDS        0x100
  62 #define DBG_MM          0x200
  63 #define DBG_KMEM        0x400
  64 #define DBG_UMEM        0x800
  65 #define DBG_ELF         0x1000
  66 #define DBG_VFS         0x2000
  67 #define DBG_SCHED       0x4000
  68 #define DBG_PROC        0x8000
  69 #define DBG_FS          0x10000
  70 #define DBG_NET         0x20000
  71 #define DBG_SOCKET      0x40000
  72 #define DBG_TCP         0x80000
  73 #define DBG_UDP         0x100000
  74 #define DBG_DNS         0x200000
  75 #define DBG_DHCP        0x400000
  76 #define DBG_DRIVER      0x1000000
  77 #define DBG_SOUND       0x2000000
  78 #define DBG_BLOCK       0x4000000
  79 #define DBG_BUS         0x8000000
  80 #define DBG_ETH         0x10000000
  81 #define DBG_CHAR        0x20000000
  82 #define DBG_UTILS       0x40000000
  83 #define DBG_SYSCALL     0x80000000
  84
  85 #define swap16(x) ({unsigned _x = (x); (((_x)>>8)&0xff) | (((_x)<<8)&0xff00); })
  86
  87 #define swap32(x) ({\
  88         unsigned _x = (x); \
  89         (((_x)>>24)&0xff)\
  90         |\
  91         (((_x)>>8)&0xff00)\
  92         |\
  93         (((_x)<<8)&0xff0000)\
  94         |\
  95         (((_x)<<24)&0xff000000);\
  96 })
  97
  98 #define swap64(_v) (((unsigned long)swap32((unsigned)(_v))<<32)|(unsigned long)swap32((unsigned)((_v)>>32)))
  99
 100 unsigned debug;                 // developer mode
 101
 102 unsigned long long ctps;        // cpu ticks per second
 103
 104 tty_t *currtty;
 105
 106 partition_t *curr_part;
 107
 108 unsigned int fd_count;
 109
 110 page_dir_t *page_cover_curr;
 111
 112 unsigned char *kbd_layout[2];
 113
 114 extern unsigned short *vesafb;
 115
 116 #define KBD_MAX_QUAUE 16
 117 typedef struct
 118 {
 119         char key[KBD_MAX_QUAUE];
 120         int p;
 121         //unsigned char state[KBD_MAX_QUAUE];
 122 } kbd_quaue;
 123
 124 /* memory vars */
 125 unsigned short mem_ext;
 126
 127 /* fs directory structure */
 128 struct dir {
 129         char name[10];
 130         int read;
 131         int hidden;
 132         int system;
 133         int volume;
 134         int dir;
 135         int bin;
 136         unsigned int start;
 137 } dir[223];
 138
 139 /** externs **/
 140
 141 /* init.c */
 142 extern int init ();
 143
 144 /* kmem.c */
 145 extern void *malloc (unsigned size);
 146 extern void *realloc(void *blk, unsigned size);
 147 extern void free (void *blk);
 148 extern void *kmalloc (unsigned size);
 149 extern void *krealloc(void *blk, unsigned size);
 150 extern void kfree (void *blk);
 151
 152 extern unsigned int init_mm ();
 153
 154 /* pmem.c */
 155 extern void *pmalloc (size_t size);
 156 extern void pfree (void *blk);
 157 extern void *palign (void *p);
 158
 159 /* swmem.c */
 160 extern void *swmalloc (unsigned size);
 161 extern unsigned swfree (void *ptr, unsigned size);
 162 extern unsigned int swmem_init ();
 163
 164 /* protmem.c */
 165 extern void *memcpy_to_user (void *dest, const void *src, size_t count);
 166 extern void *memcpy_from_user (void *dest, const void *src, size_t count);
 167 extern unsigned memtest_data (void *src, void *data, size_t offset);
 168
 169 /* console.c */
 170 extern unsigned int init_console ();
 171 extern void console (int i);
 172
 173 /* elf.c */
 174 extern int exec_elf (unsigned char *image, unsigned *entry, unsigned *elf_data, unsigned *elf_data_off, unsigned *elf_bss);
 175 extern int flush_elf ();
 176
 177 /* exec.c */
 178 extern bool exec (partition_t *p, unsigned char *fi);
 179
 180 /* keyboard.c */
 181 extern unsigned keyboard_setlayout (char *layout);
 182 extern unsigned keyboard_getlayout (char *layout);
 183
 184 extern char getkey ();
 185 extern void setkey (char key);
 186
 187 extern unsigned int init_tasks (void);
 188 extern unsigned sched_lock ();
 189 extern unsigned sched_unlock ();
 190 extern void schedule (void);
 191
 192 /* kprintf.c */
 193 extern void DPRINT (unsigned type, const char *fmt, ...);
 194
 195 /* video.c */
 196 extern unsigned char vgagui;
 197
 198 extern void uptime (void);
 199
 200 /* fat.c */
 201 extern unsigned read_dir (int aa);
 202
 203 /* ls.c */
 204 extern int ls (unsigned char *fi);
 205
 206 /* cd.c */
 207 extern int cd (unsigned char *fi);
 208
 209 /* cp.c */
 210 extern int cp (unsigned char *fi, unsigned char *fo);
 211
 212 /* cat.c */
 213 extern int cat (unsigned char *fi);
 214
 215 /* read.c */
 216 extern int read (unsigned fd, void *buf, unsigned len);
 217
 218 /* fopen.c */
 219 extern FILE *fopen (const char *filename, const char *mode);
 220
 221 /* fputs.c */
 222 extern char *fgets (char *string, int n, FILE *file);
 223
 224 /* fclose.c */
 225 extern int fclose (FILE *file);
 226
 227 /* keyboard.c */
 228 extern unsigned int init_keyboard ();
 229
 230 /* arch depend rtc.c */
 231 extern tm *rtc_getcurrtime ();
 232
 233 /* arch depend task.c */
 234 extern unsigned arch_task_init (task_t *task, unsigned entry);
 235 extern unsigned arch_task_set (task_t *task);
 236 extern unsigned arch_task_switch (task_t *task);
 237
 238 /* arch depend arch.c */
 239 extern unsigned int_enable ();
 240 extern unsigned int_disable ();
 241 extern unsigned arch_cpu_hlt ();
 242 extern unsigned init_arch ();
 243
 244 /* arch depend elf*.c */
 245 extern unsigned arch_elf_detect (elf_file_t *file);
 246
 247 #endif