kernel/core/init.c

   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  *  Copyright (C) 2010  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   7  *
   8  *  This program is free software: you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation, either version 3 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include <system.h>
  23 #include <string.h>
  24 #include <arch/io.h>
  25 #include <config.h>
  26 #include <env.h>
  27 #include <dev.h>
  28 #include <vfs.h>
  29 #include <user.h>
  30 #include <tty.h>
  31 #include <proc.h>
  32 #include <partition.h>
  33 #include <net/if.h>
  34 #include <net/socket.h>
  35 #include <net/packet.h>
  36 #include <sound/audio.h>
  37 #include <module.h>
  38 #include <commands.h>
  39 #include <console.h>
  40 #include <paging.h>
  41 #include <errno.h>
  42 #include <smp.h>
  43 #include <build.h>
  44 #include <its.h>
  45 #include <fs.h>
  46 #include <fd.h>
  47
  48 /* Command structure */
  49 typedef unsigned int (init_handler_t) ();
  50
  51 /* OS information stamp */
  52 void osinfo ()
  53 {
  54         video_color (14, 0);
  55         kprintf ("ZeX/OS");
  56         video_color (7, 0);
  57         kprintf (" v" ZEXOS_MAJOR "." ZEXOS_MINOR "." ZEXOS_REVISION " " ZEXOS_DATE " " ZEXOS_ARCH " " ZEXOS_COMPILER "\n");
  58 }
  59
  60 /* Bootloader command parse system */
  61 void oscmd (char *cmdline)
  62 {
  63         kernel_attr = 0;
  64
  65         char cmd[80];
  66
  67         int x = 0, y, l;
  68
  69         l = strlen (cmdline);
  70
  71         if (l >= 80)
  72                 l = 79;
  73
  74         while (x < l) {
  75                 if (cmdline[x] == ' ') {
  76                         x ++;
  77
  78                         if (!cstrcmp ("nolive", cmdline+x))     /* Disable Live form of the OS */
  79                                 kernel_attr |= KERNEL_NOLIVE;
  80                         if (!cstrcmp ("noata", cmdline+x))      /* Ignore ATA devices - cdrom, hdd */
  81                                 kernel_attr |= KERNEL_NOATA;
  82                         if (!cstrcmp ("18hz", cmdline+x))       /* Ticks on 18hz only - IBM default tickrate */
  83                                 kernel_attr |= KERNEL_18HZ;
  84                         if (!cstrcmp ("noeth", cmdline+x))      /* Ignore ethernet cards */
  85                                 kernel_attr |= KERNEL_NOETH;
  86                         if (!cstrcmp ("novesa", cmdline+x))     /* Disable vesa support when its available */
  87                                 kernel_attr |= KERNEL_NOVESA;
  88                 }
  89
  90                 x ++;
  91         }
  92 }
  93
  94 /* Eye-candy status */
  95 unsigned int checkinfo (char *msg, int ret)
  96 {
  97         if (msg == NULL)
  98                 return 2;
  99
 100         video_color (14, 0);
 101         kprintf (" * ");
 102         video_color (7, 0);
 103         kprintf (msg);
 104         video_color (1, 0);
 105         kprintf ("\t\t[ ");
 106         video_color (14, 0);
 107
 108         if (ret) {
 109                 video_color (14, 0);
 110                 kprintf ("OK");
 111         } else {
 112                 video_color (4, 0);
 113                 kprintf ("Fail");
 114         }
 115
 116         video_color (1, 0);
 117         kprintf (" ]\n");
 118
 119         video_color (15, 0);
 120
 121         return ret;
 122 }
 123
 124 /* Handler-caller */
 125 unsigned int _init (init_handler_t *handler, char *msg)
 126 {
 127         return checkinfo (msg, handler ());
 128 }
 129
 130 extern void calc_freqency ();
 131 extern task_t *_curr_task;
 132
 133 /* initialization of kernel */
 134 int init (char *cmdline)
 135 {
 136         debug = 0;
 137         _curr_task = 0;
 138
 139         _init (&init_arch, NULL);                       /* architecture dependent stuff */
 140
 141         oscmd (cmdline);                                /* bootloader command parsing */
 142
 143         _init (&init_video, NULL);                      /* video initialization */
 144
 145         osinfo ();                                      /* print OS information - kernel ver.; compiler; .. */
 146
 147         _init (&init_mm, "Initialize mm");              /* Memory management */
 148         _init (&init_smp, "Initialize SMP");            /* Symmetric multiprocessing */
 149         _init (&init_keyboard, "Initialize keyboard");  /* Keyboard should be accessible from here */
 150 #ifdef ARCH_i386
 151         _init (&init_paging, "Initialize paging");      /* Page covering, etc */
 152 #endif
 153         _init (&init_errno, "Initialize errno");        /* Errno global variable */
 154         _init (&init_env, "Initialize env vars");       /* Environment variables */
 155         _init (&init_fd, "Initialize file desc");       /* File descriptors - stdin, stdout, .. */
 156         _init (&init_tasks, "Initialize tasks");        /* Thread and scheduler stuff */
 157         _init (&init_vfs, "Initialize VFS");            /* Virtual filesystem */
 158         _init (&init_fs, "Initialize fs");              /* Device filesystem */
 159         _init (&init_partition, "Initialize parts");    /* Device partitions - hda0, hda1, .. */
 160         _init (&init_its, "Initialize ITS");            /* Interval Time Scheduler */
 161         _init (&init_netif, "Initialize net if");       /* Network interface */
 162         _init (&init_dev, "Initialize devices");        /* Devices (PCI, RS232, Ethernet, ..) */
 163         _init (&init_socket, "Initialize sockets");     /* Network socket API */
 164         _init (&init_packet, "Initialize netcore");     /* Network handler - traffic parser */
 165         _init (&init_audio, "Initialize audio");        /* Sound System */
 166         _init (&init_proc, "Initialize procs");         /* Program's (software) process */
 167         _init (&init_module, "Loading modules");        /* Kernel additional modules (device drivers) */
 168         _init (&init_commands, "Registering cmds");     /* Built-in shell command registration */
 169         _init (&init_console, "Initialize console");    /* Console (terminal) stuff */
 170
 171         calc_swtimer ();                                /* Calculate by software time unit */
 172         calc_freqency ();                               /* Calculate CPU clock */
 173
 174         _init (&init_tty, NULL);                        /* Start TTY console */
 175         _init (&init_user, NULL);                       /* Register default user accounts */
 176
 177         return 1;
 178 }
 179