Added TOD driver from Katsutoshi Shibuya.

This commit is contained in:
Joel Sherrill
1997-10-23 18:48:35 +00:00
parent 51961e4211
commit cfefaa6e9e
6 changed files with 190 additions and 3 deletions

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@@ -22,4 +22,4 @@ SRCS=README
# from the individual .rel files built in other directories
#
# XXXX add tools
SUB_DIRS=include startup clock console consolex timer wrapup
SUB_DIRS=include startup clock console consolex timer tod wrapup

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@@ -7,7 +7,8 @@ srcdir = @srcdir@
top_srcdir = @top_srcdir@
VPATH=@srcdir@
H_FILES = $(srcdir)/bsp.h $(srcdir)/coverhd.h $(srcdir)/page_table.h
H_FILES = $(srcdir)/bsp.h $(srcdir)/coverhd.h $(srcdir)/page_table.h \
$(srcdir)/tod.h
#
# Equate files are for including from assembly preprocessed by

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@@ -0,0 +1,42 @@
/*
* Real Time Clock (MK48T08) for RTEMS on MVME162
*
* Author:
* COPYRIGHT (C) 1997
* by Katsutoshi Shibuya - BU Denken Co.,Ltd. - Sapporo - JAPAN
* ALL RIGHTS RESERVED
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* This material is a part of the MVME162 Board Support Package
* for the RTEMS executive. Its licensing policies are those of the
* RTEMS above.
*
* $Id$
*/
#ifndef TOD_H
#define TOD_H
#ifdef __cplusplus
extern "C" {
#endif
extern void setRealTimeToRTEMS();
/* Read real time from RTC and set it to RTEMS' clock manager */
extern void setRealTimeFromRTEMS();
/* Read time from RTEMS' clock manager and set it to RTC */
extern int checkRealTime();
/* Return the difference between RTC and RTEMS' clock manager time in minutes.
If the difference is greater than 1 day, this returns 9999. */
#ifdef __cplusplus
}
#endif
#endif

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@@ -0,0 +1,54 @@
#
# $Id$
#
@SET_MAKE@
srcdir = @srcdir@
top_srcdir = @top_srcdir@
VPATH=@srcdir@
PGM=${ARCH}/tod.rel
# C source names, if any, go here -- minus the .c
C_PIECES=tod
C_FILES=$(C_PIECES:%=%.c)
C_O_FILES=$(C_PIECES:%=${ARCH}/%.o)
H_FILES=
SRCS=$(C_FILES) $(H_FILES)
OBJS=$(C_O_FILES)
include $(RTEMS_CUSTOM)
include $(PROJECT_ROOT)/make/leaf.cfg
#
# (OPTIONAL) Add local stuff here using +=
#
DEFINES +=
CPPFLAGS +=
CFLAGS +=
LD_PATHS +=
LD_LIBS +=
LDFLAGS +=
#
# Add your list of files to delete here. The config files
# already know how to delete some stuff, so you may want
# to just run 'make clean' first to see what gets missed.
# 'make clobber' already includes 'make clean'
#
CLEAN_ADDITIONS +=
CLOBBER_ADDITIONS +=
${PGM}: ${SRCS} ${OBJS}
$(make-rel)
all: ${ARCH} $(SRCS) $(PGM)
# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile
install: all

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@@ -0,0 +1,90 @@
/*
* Real Time Clock (MK48T08) for RTEMS on MVME162
*
* Author:
* COPYRIGHT (C) 1997
* by Katsutoshi Shibuya - BU Denken Co.,Ltd. - Sapporo - JAPAN
* ALL RIGHTS RESERVED
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* This material is a part of the MVME162 Board Support Package
* for the RTEMS executive. Its licensing policies are those of the
* RTEMS above.
*
* $Id$
*/
#include <rtems.h>
#include <tod.h>
#define tod ((volatile unsigned char *)0xfffc1ff8)
static int getTod(int n, unsigned char mask)
{
unsigned char x;
x = tod[n]&mask;
return (x>>4)*10+(x&0x0f);
}
static void setTod(int n, unsigned char d)
{
tod[n] = ((d/10)<<4)+(d%10);
}
void setRealTimeToRTEMS()
{
rtems_time_of_day t;
tod[0] |= 0x40; /* Stop read register */
t.year = 1900+getTod(7,0xff);
t.month = getTod(6,0x1f);
t.day = getTod(5,0x3f);
t.hour = getTod(3,0x3f);
t.minute = getTod(2,0x7f);
t.second = getTod(1,0x7f);
t.ticks = 0;
tod[0] &= 0x3f; /* Release read register */
rtems_clock_set(&t);
}
void setRealTimeFromRTEMS()
{
rtems_time_of_day t;
rtems_clock_get(RTEMS_CLOCK_GET_TOD,&t);
t.year -= 1900;
tod[0] |= 0x80; /* Stop write register */
setTod(7,t.year);
setTod(6,t.month);
setTod(5,t.day);
setTod(4,1); /* I don't know which day of week is */
setTod(3,t.hour);
setTod(2,t.minute);
setTod(1,t.second);
tod[0] &= 0x3f; /* Write these parameters */
}
int checkRealTime()
{
rtems_time_of_day t;
int d;
tod[0] |= 0x40; /* Stop read register */
rtems_clock_get(RTEMS_CLOCK_GET_TOD,&t);
if((t.year != 1900+getTod(7,0xff))
|| (t.month != getTod(6,0x1f))
|| (t.day != getTod(5,0x3f)))
d = 9999;
else
d = (t.hour-getTod(3,0x3f))*3600
+ (t.minute-getTod(3,0x7f))*60
+ (t.second - getTod(1,0x7f));
tod[1] &= 0x3f;
return d;
}

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@@ -7,7 +7,7 @@ srcdir = @srcdir@
top_srcdir = @top_srcdir@
VPATH=@srcdir@
BSP_PIECES=startup clock console timer
BSP_PIECES=startup clock console timer tod
CPU_PIECES=
GENERIC_PIECES=