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/*
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 * Project: S.Ha.R.K
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 *
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 * Coordinators: Giorgio Buttazzo <giorgio@sssup.it>
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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://hartik.sssup.it
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 */
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#include "kernel/kern.h"
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#include "modules/edf.h"
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#include "modules/cbs.h"
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#include "modules/rr.h"
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#include "modules/dummy.h"
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#include "modules/intdrive.h"
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#include "modules/sem.h"
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#include "modules/hartport.h"
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#include "modules/pi.h"
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#include "modules/pc.h"
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#include "modules/srp.h"
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#include "modules/npp.h"
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#include "modules/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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#define FRAME_BUFFER_DEVICE 0
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/*+ sysyem tick in us +*/
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#define TICK 0
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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_T 10000
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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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  INTDRIVE_register_level(INTDRIVE_Q,INTDRIVE_T,INTDRIVE_FLAG);
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  EDF_register_level(EDF_ENABLE_ALL);
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  CBS_register_level(CBS_ENABLE_ALL, 1);
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  RR_register_level(RRTICK, RR_MAIN_YES, mb);
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  dummy_register_level();
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  SEM_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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  HARTPORT_init();
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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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    sys_end();
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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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  LINUXC26_register_module();
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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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  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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  sys_abort_shutdown(0);
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  return NULL;
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}