forked from Imagelibrary/rtems
2004-01-07 Joel Sherrill <joel@OARcorp.com>
* mips64orion/.cvsignore, mips64orion/ChangeLog, mips64orion/Makefile.am, mips64orion/configure.ac, mips64orion/clock/.cvsignore, mips64orion/clock/Makefile.am, mips64orion/clock/ckinit.c, mips64orion/clock/clock.S, mips64orion/clock/clock.h, mips64orion/timer/.cvsignore, mips64orion/timer/Makefile.am, mips64orion/timer/gettime.S, mips64orion/timer/timer.c: Removed.
This commit is contained in:
@@ -1,3 +1,13 @@
|
||||
2004-01-07 Joel Sherrill <joel@OARcorp.com>
|
||||
|
||||
* mips64orion/.cvsignore, mips64orion/ChangeLog,
|
||||
mips64orion/Makefile.am, mips64orion/configure.ac,
|
||||
mips64orion/clock/.cvsignore, mips64orion/clock/Makefile.am,
|
||||
mips64orion/clock/ckinit.c, mips64orion/clock/clock.S,
|
||||
mips64orion/clock/clock.h, mips64orion/timer/.cvsignore,
|
||||
mips64orion/timer/Makefile.am, mips64orion/timer/gettime.S,
|
||||
mips64orion/timer/timer.c: Removed.
|
||||
|
||||
2003-12-01 Ralf Corsepius <corsepius@faw.uni-ulm.de>
|
||||
|
||||
* Makefile.am: Reformat.
|
||||
|
||||
@@ -1,14 +0,0 @@
|
||||
aclocal.m4
|
||||
autom4te*.cache
|
||||
config.cache
|
||||
config.guess
|
||||
config.log
|
||||
config.status
|
||||
config.sub
|
||||
configure
|
||||
depcomp
|
||||
install-sh
|
||||
Makefile
|
||||
Makefile.in
|
||||
missing
|
||||
mkinstalldirs
|
||||
@@ -1,115 +0,0 @@
|
||||
2003-12-12 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: Require automake >= 1.8, autoconf >= 2.59.
|
||||
|
||||
2003-12-02 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* clock/Makefile.am: Remove all-local: $(ARCH).
|
||||
* timer/Makefile.am: Remove all-local: $(ARCH).
|
||||
|
||||
2003-12-01 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* clock/Makefile.am: Reformat.
|
||||
* timer/Makefile.am: Reformat.
|
||||
|
||||
2003-10-22 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: Remove RTEMS_CANONICAL_HOST.
|
||||
|
||||
2003-10-21 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: Remove RTEMS_CHECK_CPU.
|
||||
|
||||
2003-09-04 Joel Sherrill <joel@OARcorp.com>
|
||||
|
||||
* clock/ckinit.c, timer/timer.c: URL for license changed.
|
||||
|
||||
2003-08-18 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* Makefile.am: Reflect having moved aclocal/.
|
||||
|
||||
2003-08-16 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* Makefile.am: Reflect having moved automake/.
|
||||
* clock/Makefile.am: Reflect having moved automake/.
|
||||
* timer/Makefile.am: Reflect having moved automake/.
|
||||
|
||||
2003-08-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: Use rtems-bugs@rtems.com as bug report email address.
|
||||
|
||||
2003-03-06 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: Remove AC_CONFIG_AUX_DIR.
|
||||
|
||||
2003-02-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: AM_INIT_AUTOMAKE([1.7.2]).
|
||||
|
||||
2003-02-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: AC_PREREQ(2.57).
|
||||
|
||||
2003-01-15 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* clock/Makefile.am: Don't include @RTEMS_BSP@.cfg.
|
||||
* timer/Makefile.am: Ditto.
|
||||
|
||||
2002-12-06 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: Remove RTEMS_CHECK_BSP_CACHE.
|
||||
|
||||
2002-12-01 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac: Add RTEMS_PROG_CCAS.
|
||||
|
||||
2002-10-21 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* .cvsignore: Reformat.
|
||||
Add autom4te*cache.
|
||||
Remove autom4te.cache.
|
||||
|
||||
2002-08-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* clock/Makefile.am: Use .$(OBJEXT) instead of .o.
|
||||
* timer/Makefile.am: Use .$(OBJEXT) instead of .o.
|
||||
|
||||
2002-03-27 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* configure.ac:
|
||||
AC_INIT(package,_RTEMS_VERSION,_RTEMS_BUGS).
|
||||
AM_INIT_AUTOMAKE([no-define foreign 1.6]).
|
||||
* clock/Makefile.am: Remove AUTOMAKE_OPTIONS.
|
||||
* Makefile.am: Remove AUTOMAKE_OPTIONS.
|
||||
* timer/Makefile.am: Remove AUTOMAKE_OPTIONS.
|
||||
|
||||
2001-10-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* .cvsignore: Add autom4te.cache for autoconf > 2.52.
|
||||
* configure.in: Remove.
|
||||
* configure.ac: New file, generated from configure.in by autoupdate.
|
||||
|
||||
2001-03-03 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* clock/Makefile.am: Apply *_HEADERS instead of *H_FILES.
|
||||
|
||||
2000-11-09 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* Makefile.am: Use ... instead of RTEMS_TOPdir in ACLOCAL_AMFLAGS.
|
||||
|
||||
2000-11-02 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* Makefile.am: Switch to ACLOCAL_AMFLAGS = -I $(RTEMS_TOPdir)/aclocal.
|
||||
|
||||
2000-10-26 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* Makefile.am: ACLOCAL_AMFLAGS= -I $(RTEMS_TOPdir)/macros.
|
||||
Switch to GNU canonicalization.
|
||||
|
||||
2000-09-04 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
|
||||
|
||||
* clock/Makefile.am, timer/Makefile.am: Include compile.am
|
||||
|
||||
2000-08-10 Joel Sherrill <joel@OARcorp.com>
|
||||
|
||||
* ChangeLog: New file.
|
||||
@@ -1,10 +0,0 @@
|
||||
##
|
||||
## $Id$
|
||||
##
|
||||
|
||||
ACLOCAL_AMFLAGS = -I ../../../aclocal
|
||||
|
||||
SUBDIRS = clock timer
|
||||
|
||||
include $(top_srcdir)/../../../automake/subdirs.am
|
||||
include $(top_srcdir)/../../../automake/local.am
|
||||
@@ -1,2 +0,0 @@
|
||||
Makefile
|
||||
Makefile.in
|
||||
@@ -1,32 +0,0 @@
|
||||
##
|
||||
## $Id$
|
||||
##
|
||||
|
||||
PGM = $(ARCH)/clock.rel
|
||||
|
||||
C_FILES = ckinit.c
|
||||
|
||||
S_FILES = clock.S
|
||||
|
||||
noinst_HEADERS = clock.h
|
||||
|
||||
clock_rel_OBJECTS = $(C_FILES:%.c=$(ARCH)/%.$(OBJEXT)) \
|
||||
$(S_FILES:%.S=$(ARCH)/%.$(OBJEXT))
|
||||
|
||||
include $(top_srcdir)/../../../automake/compile.am
|
||||
include $(top_srcdir)/../../../automake/lib.am
|
||||
|
||||
#
|
||||
# (OPTIONAL) Add local stuff here using +=
|
||||
#
|
||||
|
||||
$(PGM): $(clock_rel_OBJECTS)
|
||||
$(make-rel)
|
||||
|
||||
all-local: $(clock_rel_OBJECTS) $(PGM)
|
||||
|
||||
.PRECIOUS: $(PGM)
|
||||
|
||||
EXTRA_DIST = ckinit.c clock.S clock.h
|
||||
|
||||
include $(top_srcdir)/../../../automake/local.am
|
||||
@@ -1,245 +0,0 @@
|
||||
|
||||
/* ckinit.c
|
||||
*
|
||||
* This file contains the clock driver initialization for the IDT 4650.
|
||||
*
|
||||
* Author: Craig Lebakken <craigl@transition.com>
|
||||
*
|
||||
* COPYRIGHT (c) 1996 by Transition Networks Inc.
|
||||
*
|
||||
* To anyone who acknowledges that this file is provided "AS IS"
|
||||
* without any express or implied warranty:
|
||||
* permission to use, copy, modify, and distribute this file
|
||||
* for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice and this notice appears in all
|
||||
* copies, and that the name of Transition Networks not be used in
|
||||
* advertising or publicity pertaining to distribution of the
|
||||
* software without specific, written prior permission.
|
||||
* Transition Networks makes no representations about the suitability
|
||||
* of this software for any purpose.
|
||||
*
|
||||
* Derived from c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c:
|
||||
*
|
||||
* COPYRIGHT (c) 1989-1999.
|
||||
* On-Line Applications Research Corporation (OAR).
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rtems.com/license/LICENSE.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/*
|
||||
* Rather than deleting this, it is commented out to (hopefully) help
|
||||
* the submitter send updates.
|
||||
*
|
||||
* static char _sccsid[] = "@(#)ckinit.c 08/20/96 1.3\n";
|
||||
*/
|
||||
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
#include <rtems.h>
|
||||
#include <rtems/libio.h>
|
||||
|
||||
#define EXT_INT5 0x8000 /* external interrupt 5 */
|
||||
|
||||
#include "clock.h"
|
||||
|
||||
/* formerly in the BSP */
|
||||
#if 0
|
||||
#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ ) /* equivalent to CPU clock speed in MHz */
|
||||
#endif
|
||||
|
||||
#define CLOCKS_PER_MICROSECOND \
|
||||
rtems_cpu_configuration_get_clicks_per_microsecond()
|
||||
/* to avoid including the bsp */
|
||||
mips_isr_entry set_vector( rtems_isr_entry, rtems_vector_number, int );
|
||||
|
||||
void Clock_exit( void );
|
||||
rtems_isr Clock_isr( rtems_vector_number vector );
|
||||
|
||||
|
||||
/*
|
||||
* The interrupt vector number associated with the clock tick device
|
||||
* driver.
|
||||
*/
|
||||
|
||||
#define CLOCK_VECTOR_MASK EXT_INT5
|
||||
#define CLOCK_VECTOR 0x7
|
||||
|
||||
/*
|
||||
* Clock_driver_ticks is a monotonically increasing counter of the
|
||||
* number of clock ticks since the driver was initialized.
|
||||
*/
|
||||
|
||||
volatile rtems_unsigned32 Clock_driver_ticks;
|
||||
|
||||
/*
|
||||
* Clock_isrs is the number of clock ISRs until the next invocation of
|
||||
* the RTEMS clock tick routine. The clock tick device driver
|
||||
* gets an interrupt once a millisecond and counts down until the
|
||||
* length of time between the user configured microseconds per tick
|
||||
* has passed.
|
||||
*/
|
||||
|
||||
rtems_unsigned32 Clock_isrs; /* ISRs until next tick */
|
||||
|
||||
/*
|
||||
* These are set by clock driver during its init
|
||||
*/
|
||||
|
||||
rtems_device_major_number rtems_clock_major = ~0;
|
||||
rtems_device_minor_number rtems_clock_minor;
|
||||
|
||||
/*
|
||||
* The previous ISR on this clock tick interrupt vector.
|
||||
*/
|
||||
|
||||
rtems_isr_entry Old_ticker;
|
||||
|
||||
void Clock_exit( void );
|
||||
|
||||
static unsigned32 mips_timer_rate = 0;
|
||||
|
||||
/*
|
||||
* Isr Handler
|
||||
*/
|
||||
|
||||
rtems_isr Clock_isr(
|
||||
rtems_vector_number vector
|
||||
)
|
||||
{
|
||||
/*
|
||||
* bump the number of clock driver ticks since initialization
|
||||
*
|
||||
* determine if it is time to announce the passing of tick as configured
|
||||
* to RTEMS through the rtems_clock_tick directive
|
||||
*
|
||||
* perform any timer dependent tasks
|
||||
*/
|
||||
|
||||
/* refresh the internal CPU timer */
|
||||
mips_set_timer( mips_timer_rate );
|
||||
|
||||
Clock_driver_ticks += 1;
|
||||
|
||||
rtems_clock_tick();
|
||||
}
|
||||
|
||||
/* User callback shell (set from Clock_Control) */
|
||||
static void (*user_callback)(void);
|
||||
|
||||
rtems_isr User_Clock_isr(
|
||||
rtems_vector_number vector
|
||||
)
|
||||
{
|
||||
/* refresh the internal CPU timer */
|
||||
mips_set_timer( mips_timer_rate );
|
||||
|
||||
if (user_callback)
|
||||
user_callback();
|
||||
}
|
||||
|
||||
/*
|
||||
* Install_clock
|
||||
*
|
||||
* Install a clock tick handleR and reprograms the chip. This
|
||||
* is used to initially establish the clock tick.
|
||||
*/
|
||||
|
||||
void Install_clock(
|
||||
rtems_isr_entry clock_isr
|
||||
)
|
||||
{
|
||||
/*
|
||||
* Initialize the clock tick device driver variables
|
||||
*/
|
||||
|
||||
Clock_driver_ticks = 0;
|
||||
Clock_isrs = rtems_configuration_get_milliseconds_per_tick();
|
||||
|
||||
Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 );
|
||||
/*
|
||||
* Hardware specific initialize goes here
|
||||
*/
|
||||
|
||||
mips_timer_rate =
|
||||
rtems_configuration_get_microseconds_per_tick() * CLOCKS_PER_MICROSECOND;
|
||||
mips_set_timer( mips_timer_rate );
|
||||
enable_int(CLOCK_VECTOR_MASK);
|
||||
|
||||
/*
|
||||
* Schedule the clock cleanup routine to execute if the application exits.
|
||||
*/
|
||||
|
||||
atexit( Clock_exit );
|
||||
}
|
||||
|
||||
/*
|
||||
* Clean up before the application exits
|
||||
*/
|
||||
|
||||
void Clock_exit( void )
|
||||
{
|
||||
/* mips: turn off the timer interrupts */
|
||||
disable_int(~CLOCK_VECTOR_MASK);
|
||||
}
|
||||
|
||||
/*
|
||||
* Clock_initialize
|
||||
*
|
||||
* Device driver entry point for clock tick driver initialization.
|
||||
*/
|
||||
|
||||
rtems_device_driver Clock_initialize(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void *pargp
|
||||
)
|
||||
{
|
||||
Install_clock( Clock_isr );
|
||||
|
||||
/*
|
||||
* make major/minor avail to others such as shared memory driver
|
||||
*/
|
||||
|
||||
rtems_clock_major = major;
|
||||
rtems_clock_minor = minor;
|
||||
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
rtems_device_driver Clock_control(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void *pargp
|
||||
)
|
||||
{
|
||||
rtems_unsigned32 isrlevel;
|
||||
rtems_libio_ioctl_args_t *args = pargp;
|
||||
|
||||
if (args == 0)
|
||||
goto done;
|
||||
|
||||
/*
|
||||
* This is hokey, but until we get a defined interface
|
||||
* to do this, it will just be this simple...
|
||||
*/
|
||||
|
||||
if (args->command == rtems_build_name('I', 'S', 'R', ' '))
|
||||
{
|
||||
Clock_isr(CLOCK_VECTOR);
|
||||
}
|
||||
else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
|
||||
{
|
||||
rtems_interrupt_disable( isrlevel );
|
||||
user_callback = (void (*)(void))args->buffer;
|
||||
(void) set_vector( User_Clock_isr, CLOCK_VECTOR, 1 );
|
||||
rtems_interrupt_enable( isrlevel );
|
||||
}
|
||||
|
||||
done:
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
@@ -1,45 +0,0 @@
|
||||
/* clock.s
|
||||
*
|
||||
* This file contains the assembly code for the IDT 4650 clock driver.
|
||||
*
|
||||
* Author: Craig Lebakken <craigl@transition.com>
|
||||
*
|
||||
* COPYRIGHT (c) 1996 by Transition Networks Inc.
|
||||
*
|
||||
* To anyone who acknowledges that this file is provided "AS IS"
|
||||
* without any express or implied warranty:
|
||||
* permission to use, copy, modify, and distribute this file
|
||||
* for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice and this notice appears in all
|
||||
* copies, and that the name of Transition Networks not be used in
|
||||
* advertising or publicity pertaining to distribution of the
|
||||
* software without specific, written prior permission.
|
||||
* Transition Networks makes no representations about the suitability
|
||||
* of this software for any purpose.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
/* @(#)clock.S 08/20/96 1.2 */
|
||||
|
||||
#include <iregdef.h>
|
||||
#include <idtcpu.h>
|
||||
#include <idtmon.h>
|
||||
|
||||
FRAME(mips_set_timer,sp,0,ra)
|
||||
.set noreorder
|
||||
mfc0 t0,C0_COUNT
|
||||
nop
|
||||
addu t0,a0,t0
|
||||
mtc0 t0,C0_COMPARE
|
||||
nop
|
||||
j ra
|
||||
.set reorder
|
||||
ENDFRAME(mips_set_timer)
|
||||
|
||||
FRAME(mips_get_timer,sp,0,ra)
|
||||
.set noreorder
|
||||
mfc0 v0,C0_COUNT
|
||||
nop
|
||||
j ra
|
||||
.set reorder
|
||||
ENDFRAME(mips_get_timer)
|
||||
@@ -1,25 +0,0 @@
|
||||
/* clock.s
|
||||
*
|
||||
* This file contains the assembly code for the IDT 4650 clock driver.
|
||||
*
|
||||
* Author: Craig Lebakken <craigl@transition.com>
|
||||
*
|
||||
* COPYRIGHT (c) 1996 by Transition Networks Inc.
|
||||
*
|
||||
* To anyone who acknowledges that this file is provided "AS IS"
|
||||
* without any express or implied warranty:
|
||||
* permission to use, copy, modify, and distribute this file
|
||||
* for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice and this notice appears in all
|
||||
* copies, and that the name of Transition Networks not be used in
|
||||
* advertising or publicity pertaining to distribution of the
|
||||
* software without specific, written prior permission.
|
||||
* Transition Networks makes no representations about the suitability
|
||||
* of this software for any purpose.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/* @(#)clock.h 08/20/96 1.2 */
|
||||
|
||||
extern void mips_set_timer( unsigned32 timer_clock_interval );
|
||||
@@ -1,31 +0,0 @@
|
||||
## Process this file with autoconf to produce a configure script.
|
||||
##
|
||||
## $Id$
|
||||
|
||||
AC_PREREQ(2.59)
|
||||
AC_INIT([rtems-c-src-lib-libcpu-mips64orion],[_RTEMS_VERSION],[rtems-bugs@rtems.com])
|
||||
AC_CONFIG_SRCDIR([clock])
|
||||
RTEMS_TOP(../../../../..)
|
||||
|
||||
RTEMS_CANONICAL_TARGET_CPU
|
||||
|
||||
AM_INIT_AUTOMAKE([no-define foreign 1.8])
|
||||
AM_MAINTAINER_MODE
|
||||
|
||||
RTEMS_ENABLE_BARE
|
||||
RTEMS_ENV_RTEMSBSP
|
||||
|
||||
|
||||
RTEMS_PROJECT_ROOT
|
||||
|
||||
RTEMS_PROG_CC_FOR_TARGET
|
||||
RTEMS_CANONICALIZE_TOOLS
|
||||
RTEMS_PROG_CCAS
|
||||
|
||||
RTEMS_CHECK_CUSTOM_BSP(RTEMS_BSP)
|
||||
|
||||
# Explicitly list all Makefiles here
|
||||
AC_CONFIG_FILES([Makefile
|
||||
clock/Makefile
|
||||
timer/Makefile])
|
||||
AC_OUTPUT
|
||||
@@ -1,2 +0,0 @@
|
||||
Makefile
|
||||
Makefile.in
|
||||
@@ -1,30 +0,0 @@
|
||||
##
|
||||
## $Id$
|
||||
##
|
||||
|
||||
PGM = $(ARCH)/timer.rel
|
||||
|
||||
C_FILES = timer.c
|
||||
|
||||
S_FILES = gettime.S
|
||||
|
||||
timer_rel_OBJECTS = $(C_FILES:%.c=$(ARCH)/%.$(OBJEXT)) \
|
||||
$(S_FILES:%.S=$(ARCH)/%.$(OBJEXT))
|
||||
|
||||
include $(top_srcdir)/../../../automake/compile.am
|
||||
include $(top_srcdir)/../../../automake/lib.am
|
||||
|
||||
#
|
||||
# (OPTIONAL) Add local stuff here using +=
|
||||
#
|
||||
|
||||
$(PGM): $(timer_rel_OBJECTS)
|
||||
$(make-rel)
|
||||
|
||||
all-local: $(timer_rel_OBJECTS) $(PGM)
|
||||
|
||||
.PRECIOUS: $(PGM)
|
||||
|
||||
EXTRA_DIST = gettime.S timer.c
|
||||
|
||||
include $(top_srcdir)/../../../automake/local.am
|
||||
@@ -1,35 +0,0 @@
|
||||
/* gettime.s
|
||||
*
|
||||
* This file contains the assembly code for the IDT 4650 timer driver.
|
||||
*
|
||||
* Author: Craig Lebakken <craigl@transition.com>
|
||||
*
|
||||
* COPYRIGHT (c) 1996 by Transition Networks Inc.
|
||||
*
|
||||
* To anyone who acknowledges that this file is provided "AS IS"
|
||||
* without any express or implied warranty:
|
||||
* permission to use, copy, modify, and distribute this file
|
||||
* for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice and this notice appears in all
|
||||
* copies, and that the name of Transition Networks not be used in
|
||||
* advertising or publicity pertaining to distribution of the
|
||||
* software without specific, written prior permission.
|
||||
* Transition Networks makes no representations about the suitability
|
||||
* of this software for any purpose.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/* @(#)gettime.S 08/20/96 1.2 */
|
||||
|
||||
#include <iregdef.h>
|
||||
#include <idtcpu.h>
|
||||
#include <idtmon.h>
|
||||
|
||||
FRAME(mips_read_timer,sp,0,ra)
|
||||
.set noreorder
|
||||
mfc0 v0,C0_COUNT
|
||||
nop
|
||||
j ra
|
||||
.set reorder
|
||||
ENDFRAME(mips_read_timer)
|
||||
@@ -1,138 +0,0 @@
|
||||
/* timer.c
|
||||
*
|
||||
* This file contains the initialization code for the IDT 4650 timer driver.
|
||||
*
|
||||
* Author: Craig Lebakken <craigl@transition.com>
|
||||
*
|
||||
* COPYRIGHT (c) 1996 by Transition Networks Inc.
|
||||
*
|
||||
* To anyone who acknowledges that this file is provided "AS IS"
|
||||
* without any express or implied warranty:
|
||||
* permission to use, copy, modify, and distribute this file
|
||||
* for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice and this notice appears in all
|
||||
* copies, and that the name of Transition Networks not be used in
|
||||
* advertising or publicity pertaining to distribution of the
|
||||
* software without specific, written prior permission.
|
||||
* Transition Networks makes no representations about the suitability
|
||||
* of this software for any purpose.
|
||||
*
|
||||
* derived from src/lib/libbsp/no_cpu/no_bsp/timer/timer.c
|
||||
*
|
||||
* This file manages the benchmark timer used by the RTEMS Timing Test
|
||||
* Suite. Each measured time period is demarcated by calls to
|
||||
* Timer_initialize() and Read_timer(). Read_timer() usually returns
|
||||
* the number of microseconds since Timer_initialize() exitted.
|
||||
*
|
||||
* NOTE: It is important that the timer start/stop overhead be
|
||||
* determined when porting or modifying this code.
|
||||
*
|
||||
* COPYRIGHT (c) 1989-1999.
|
||||
* On-Line Applications Research Corporation (OAR).
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rtems.com/license/LICENSE.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/*
|
||||
* Rather than deleting this, it is commented out to (hopefully) help
|
||||
* the submitter send updates.
|
||||
*
|
||||
* static char _sccsid[] = "@(#)timer.c 08/20/96 1.5\n";
|
||||
*/
|
||||
|
||||
|
||||
#include <rtems.h>
|
||||
|
||||
#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ )
|
||||
#define TIMER_MAX_VALUE 0xffffffff
|
||||
|
||||
extern unsigned32 mips_read_timer( void );
|
||||
|
||||
static rtems_boolean Timer_driver_Find_average_overhead;
|
||||
static unsigned32 Timer_initial_value = 0;
|
||||
|
||||
void Timer_initialize( void )
|
||||
{
|
||||
Timer_initial_value = mips_read_timer();
|
||||
/*
|
||||
* Somehow start the timer
|
||||
*/
|
||||
|
||||
/* Timer on 4650 is always running */
|
||||
}
|
||||
|
||||
/*
|
||||
* The following controls the behavior of Read_timer().
|
||||
*
|
||||
* AVG_OVEREHAD is the overhead for starting and stopping the timer. It
|
||||
* is usually deducted from the number returned.
|
||||
*
|
||||
* LEAST_VALID is the lowest number this routine should trust. Numbers
|
||||
* below this are "noise" and zero is returned.
|
||||
*/
|
||||
|
||||
#define AVG_OVERHEAD 8 /* It typically takes X.X microseconds */
|
||||
/* (Y countdowns) to start/stop the timer. */
|
||||
/* This value is in cycles. */
|
||||
#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */
|
||||
|
||||
int Read_timer( void )
|
||||
{
|
||||
unsigned64 clicks;
|
||||
unsigned32 total;
|
||||
|
||||
/*
|
||||
* Read the timer and see how many clicks it has been since we started.
|
||||
*/
|
||||
|
||||
clicks = mips_read_timer(); /* XXX: read some HW here */
|
||||
if (clicks < Timer_initial_value)
|
||||
{
|
||||
clicks += TIMER_MAX_VALUE;
|
||||
}
|
||||
clicks -= Timer_initial_value;
|
||||
|
||||
/*
|
||||
* Total is calculated by taking into account the number of timer overflow
|
||||
* interrupts since the timer was initialized and clicks since the last
|
||||
* interrupts.
|
||||
*/
|
||||
#if 0 /* leave total in number of cycles */
|
||||
total = clicks / CLOCKS_PER_MICROSECOND;
|
||||
#else
|
||||
total = clicks;
|
||||
#endif
|
||||
|
||||
if ( Timer_driver_Find_average_overhead == 1 )
|
||||
return total; /* in # cycles units */
|
||||
else {
|
||||
if ( total < LEAST_VALID )
|
||||
return 0; /* below timer resolution */
|
||||
/*
|
||||
* leave total in cycles
|
||||
*/
|
||||
return (total - AVG_OVERHEAD);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Empty function call used in loops to measure basic cost of looping
|
||||
* in Timing Test Suite.
|
||||
*/
|
||||
|
||||
rtems_status_code Empty_function( void )
|
||||
{
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
void Set_find_average_overhead(
|
||||
rtems_boolean find_flag
|
||||
)
|
||||
{
|
||||
Timer_driver_Find_average_overhead = find_flag;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user