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1120 pj 1
/*
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 * Project: S.Ha.R.K.
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 *
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 * Coordinators:
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 *   Giorgio Buttazzo    <giorgio@sssup.it>
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *
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 * Authors     :
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *   (see the web pages for full authors list)
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 *
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 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
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 *
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 * http://www.sssup.it
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 * http://retis.sssup.it
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 * http://shark.sssup.it
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 */
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/**
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 ------------
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 CVS :        $Id: iaster6.c,v 1.8 2006-07-03 13:12:06 tullio Exp $
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 File:        $File$
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 Revision:    $Revision: 1.8 $
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 Last update: $Date: 2006-07-03 13:12:06 $
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 ------------
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 System initialization file
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 h3pips.c
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 These functions register the following levels:
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 an EDF (Earliest Deadline First) level
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 a RR (Round Robin) level
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 a CBS (Costant Bandwidth Server) level
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 a PS (Polling Server) level
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 a Dummy level
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 It can accept these task models:
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 HARD_TASK_MODEL (wcet+mit) at level 0
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 NRT_TASK_MODEL  at level 1
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 SOFT_TASK_MODEL (met, period) at level 2
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 SOFT_TASK_MODEL (periodicity=APERIODIC) at level 3
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**/
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/*
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 * Copyright (C) 2000 Paolo Gai
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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#include "kernel/kern.h"
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#include "intdrive/intdrive/intdrive.h"
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#include "edf/edf/edf.h"
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#include "cbs/cbs/cbs.h"
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#include "rr/rr/rr.h"
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#include "dummy/dummy/dummy.h"
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#include "ps/ps/ps.h"
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#include "sem/sem/sem.h"
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#include "cabs/cabs/cabs.h"
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#include "pi/pi/pi.h"
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#include "pc/pc/pc.h"
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#include "srp/srp/srp.h"
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#include "npp/npp/npp.h"
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#include "nop/nop/nop.h"
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#include <drivers/shark_linuxc26.h>
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#include <drivers/shark_input26.h>
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#include <drivers/shark_keyb26.h>
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/*+ sysyem tick in us +*/
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#define TICK 1000
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/*+ RR tick in us +*/
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#define RRTICK 10000
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/*+ Interrupt Server +*/
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#define INTDRIVE_Q 1000
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#define INTDRIVE_U 0.1*MAX_BANDWIDTH
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#define INTDRIVE_FLAG 0
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void call_shutdown_task(void *arg);
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int device_drivers_init();
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int device_drivers_close();
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void set_shutdown_task();
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TASK shutdown_task_body(void *arg);
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PID shutdown_task_PID = -1;
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TIME __kernel_register_levels__(void *arg)
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{
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  struct multiboot_info *mb = (struct multiboot_info *)arg;
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        LEVEL EDF_level;
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  INTDRIVE_register_level(INTDRIVE_Q, INTDRIVE_Q, INTDRIVE_U, INTDRIVE_FLAG);
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  EDF_level = EDF_register_level(EDF_ENABLE_ALL);
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  RR_register_level(RRTICK, RR_MAIN_YES, mb);
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  CBS_register_level(CBS_ENABLE_ALL, EDF_level);
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  PS_register_level(2 /*PS_ENABLE_ALL_EDF*/,1,500,100000);
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  dummy_register_level();
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  SEM_register_module();
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  CABS_register_module();
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  PI_register_module();
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  PC_register_module();
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  NPP_register_module();
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  SRP_register_module();
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  NOP_register_module();
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  return TICK;
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}
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TASK __init__(void *arg)
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{
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  struct multiboot_info *mb = (struct multiboot_info *)arg;
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  /* Create the shutdown task. It will be activated at RUNLEVEL
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     SHUTDOWN */
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  set_shutdown_task();
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  /* Init the drivers */
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  device_drivers_init();
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  /* Set the shutdown task activation */
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  sys_atrunlevel(call_shutdown_task, NULL, RUNLEVEL_SHUTDOWN);
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  __call_main__(mb);
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  return (void *)0;
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}
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void set_shutdown_task() {
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  /* WARNING: the shutdown task is a background thread. It cannot execute
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              if the system is overloaded */
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  NRT_TASK_MODEL nrt;
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  nrt_task_default_model(nrt);
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  nrt_task_def_system(nrt);
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  shutdown_task_PID = task_create("Shutdown Task",shutdown_task_body,&nrt,NULL);
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  if (shutdown_task_PID == NIL) {
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    sys_shutdown_message("Error: Cannot create shutdown task\n");
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    exit(1);
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  }
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}
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int device_drivers_init() {
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  KEYB_PARMS kparms = BASE_KEYB;
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1567 mauro 175
  LINUXC26_register_module(TRUE);
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  INPUT26_init();
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  keyb_def_ctrlC(kparms, NULL);
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  KEYB26_init(&kparms);
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  return 0;
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}
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int device_drivers_close() {
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  KEYB26_close();
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  INPUT26_close();
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  return 0;
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}
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#define SHUTDOWN_TIMEOUT_SEC 3
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void call_shutdown_task(void *arg)
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{
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  struct timespec t;
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  sys_gettime(&t);
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  t.tv_sec += SHUTDOWN_TIMEOUT_SEC;
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  /* Emergency timeout to exit from RUNLEVEL_SHUTDOWN */
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  kern_event_post(&t,(void *)((void *)sys_abort_shutdown),(void *)0);
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209
  task_activate(shutdown_task_PID);
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}
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TASK shutdown_task_body(void *arg) {
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  device_drivers_close();
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  sys_shutdown_message("-- S.Ha.R.K. Closed --\n");
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  return NULL;
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}
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