/shark/trunk/modules/intdrive/intdrive/inttask.h |
---|
0,0 → 1,51 |
/* |
* Project: S.Ha.R.K. |
* |
* Coordinators: |
* Giorgio Buttazzo <giorgio@sssup.it> |
* Paolo Gai <pj@gandalf.sssup.it> |
* |
* Authors : |
* (see the web pages for full authors list) |
* Giacomo Guidi <giacomo@gandalf.sssup.it> |
* |
* ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
* |
* http://www.sssup.it |
* http://retis.sssup.it |
* http://shark.sssup.it |
*/ |
/* |
* Copyright (C) 2000 Paolo Gai |
* |
* This program is free software; you can redistribute it and/or modify |
* it under the terms of the GNU General Public License as published by |
* the Free Software Foundation; either version 2 of the License, or |
* (at your option) any later version. |
* |
* This program is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
* GNU General Public License for more details. |
* |
* You should have received a copy of the GNU General Public License |
* along with this program; if not, write to the Free Software |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* |
*/ |
#ifndef __INTTASK_H__ |
#define __INTTASK_H__ |
__BEGIN_DECLS |
int add_interrupt_job(int no); |
int intdrive_taskinit(int wcet); |
void set_noint_handler(void * new_handler); |
__END_DECLS |
#endif |
/shark/trunk/modules/intdrive/intdrive/intdrive.h |
---|
49,7 → 49,7 |
#define INTDRIVE_CHECK_WCET 1 |
LEVEL INTDRIVE_register_level(TIME capacity, TIME replenish_period, int flag); |
LEVEL INTDRIVE_register_level(TIME capacity, TIME q_theta, int U, int flags); |
/*+ Returns the used bandwidth of a level +*/ |
bandwidth_t INTDRIVE_usedbandwidth(LEVEL l); |
/shark/trunk/modules/intdrive/intdrive.c |
---|
262,7 → 262,7 |
kern_gettime(&acttime); |
SUBTIMESPEC(&acttime, &(lev->act_time), &time); |
delta_time = TIMESPEC2USEC(&time); |
mul32div32to32(delta_time, (1-lev->U), MAX_BANDWIDTH, delta_capacity); |
mul32div32to32(delta_time, (MAX_BANDWIDTH-lev->U), MAX_BANDWIDTH, delta_capacity); |
lev->avail -= delta_capacity; |
//lev->avail -= TIMESPEC2USEC(&time); |
337,7 → 337,7 |
/* Registration functions */ |
/*+ Registration function: +*/ |
LEVEL INTDRIVE_register_level(TIME capacity, TIME replenish_period, int flags) |
LEVEL INTDRIVE_register_level(TIME capacity, TIME q_theta, int U, int flags) |
{ |
LEVEL l; /* the level that we register */ |
INTDRIVE_level_des *lev; |
363,14 → 363,15 |
NULL_TIMESPEC(&(lev->act_time)); |
lev->capacity = capacity; |
//lev->replenish_period = replenish_period; |
lev->replenish_timer = NIL; |
//lev->wcet_timer = NIL; |
lev->flags = flags; |
lev->act_number = 0; |
lev->avail = 0; |
lev->q_theta = capacity; |
mul32div32to32(MAX_BANDWIDTH,lev->capacity,replenish_period,lev->U); |
lev->q_theta = q_theta; |
mul32div32to32(MAX_BANDWIDTH,U,10000,lev->U); |
//!!!calcolare parametro |
intdrive_taskinit(10000); |
return l; |
} |
/shark/trunk/modules/intdrive/subdir.mk |
---|
1,0 → 0,0 |
OBJS += intdrive/intdrive.o |
OBJS += intdrive/intdrive.o intdrive/inttask.o |
/shark/trunk/modules/intdrive/inttask.c |
---|
0,0 → 1,151 |
/* |
* Project: S.Ha.R.K. |
* |
* Coordinators: |
* Giorgio Buttazzo <giorgio@sssup.it> |
* Paolo Gai <pj@gandalf.sssup.it> |
* |
* Authors : |
* ... <......> |
* (see the web pages for full authors list) |
* |
* ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
* |
* http://www.sssup.it |
* http://retis.sssup.it |
* http://shark.sssup.it |
*/ |
/* |
* Copyright (C) 2000,2002 Paolo Gai |
* |
* This program is free software; you can redistribute it and/or modify |
* it under the terms of the GNU General Public License as published by |
* the Free Software Foundation; either version 2 of the License, or |
* (at your option) any later version. |
* |
* This program is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
* GNU General Public License for more details. |
* |
* You should have received a copy of the GNU General Public License |
* along with this program; if not, write to the Free Software |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* |
*/ |
/* Interrupt Driver Module */ |
#include <kernel/int_sem.h> |
#include <stdlib.h> |
#include <kernel/func.h> |
#include <ll/sys/ll/event.h> |
#include <ll/i386/pic.h> |
#include <tracer.h> |
#include <intdrive/intdrive/inttask.h> |
//#define DEBUG_SHARK_GLUE |
PID intr_server = NIL; |
void (*noint_handler)(int n); |
#define MAX_INT_LIST 50 |
int int_list[MAX_INT_LIST]; |
int next_free_int = 0; |
int next_execute_int = 0; |
int n_intact = 0, n_lost = 0; |
/* FIFO add job */ |
int add_interrupt_job(int no) |
{ |
int old_free_int = next_free_int; |
if (no<16) |
irq_mask(no); |
TRACER_LOGEVENT(FTrace_EVT_user_event_1, no, 0); |
int_list[next_free_int] = no; |
next_free_int++; |
if (next_free_int == MAX_INT_LIST) next_free_int = 0; |
if (next_free_int == next_execute_int) { |
next_free_int = old_free_int; |
n_lost++; |
//Raise an exception?!? |
return -1; |
} |
if (intr_server!=NIL) |
task_activate(intr_server); |
return 0; |
} |
/* FIFO get job */ |
int get_interrupt_job() |
{ |
int res = -1; |
if (next_free_int != next_execute_int) { |
res = int_list[next_execute_int]; |
next_execute_int++; |
if (next_execute_int == MAX_INT_LIST) next_execute_int = 0; |
} |
TRACER_LOGEVENT(FTrace_EVT_user_event_2, res, 0); |
return res; |
} |
/* The Interrupt TASK is an aperiodic task designed for |
the INTDRIVE module. */ |
TASK Interrupt_Server(void *arg) |
{ |
void (*tmp_fast)(int n); |
int no; |
while(1) { |
n_intact++; |
no = get_interrupt_job(); |
if (no != -1 && no < 16) { |
tmp_fast = handler_get_intdrive(no); |
(tmp_fast)(no); |
irq_unmask(no); |
} |
if (no != -1 && no >= 16) { |
(noint_handler)(no); |
} |
task_endcycle(); |
} |
} |
int intdrive_taskinit(int wcet) |
{ |
HARD_TASK_MODEL ht; |
hard_task_default_model(ht); |
hard_task_def_wcet(ht, wcet); |
hard_task_def_interrupt(ht); |
hard_task_def_system(ht); |
hard_task_def_nokill(ht); |
intr_server = task_create("Interrupt Server",Interrupt_Server,&ht,NULL); |
if (intr_server == NIL) |
return -1; |
} |
void set_noint_handler(void * new_handler) |
{ |
noint_handler = new_handler; |
} |