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Commit b851d56d authored by claes's avatar claes
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IO methods and objects for temperature sensor Maxim DS18B20

parent 390e8fb2
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Showing with 387 additions and 11 deletions
otherio/lib/rt/src/os_linux/rt_io_m_maxim_ds18b20.c 0 → 100644
View file @ b851d56d
/*
* Proview $Id$
* Copyright (C) 2005 SSAB Oxelsund AB.
*
* 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 the program, if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* rt_io_m_maxim_ds18b20.c -- I/O methods for class Maxim_DS18B20. */
#include "pwr.h"
#include "pwr_basecomponentclasses.h"
#include "pwr_otherioclasses.h"
#include "co_time.h"
#include "rt_io_base.h"
#include "rt_io_card_init.h"
#include "rt_io_card_close.h"
#include "rt_io_card_read.h"
#include "rt_io_msg.h"
#include "rt_io_m_onewire.h"
static pwr_tStatus IoCardInit( io_tCtx ctx,
io_sAgent *ap,
io_sRack *rp,
io_sCard *cp)
{
pwr_sClass_Maxim_DS18B20 *op = (pwr_sClass_Maxim_DS18B20 *)cp->op;
io_sLocalDS18B20 *local;
pwr_tStatus sts;
char name[40];
pwr_tFileName fname;
if ( cp->chanlist[0].cop) {
local = (io_sLocalDS18B20 *) calloc( 1, sizeof(io_sLocalDS18B20));
cp->Local = local;
sprintf( name, "%d-%012x", op->Family, op->Super.Address);
sprintf( fname, "/sys/bus/w1/devices/w1 bus master/%s/w1_slave", name);
local->value_fp = fopen( fname, "r");
if (!local->value_fp) {
errh_Error( "Maxim_DS18B20 Unable op open %s, '%ux'", cp->Name,
op->Super.Address);
sts = IO__INITFAIL;
op->Status = sts;
return sts;
}
io_AiRangeToCoef( &cp->chanlist[0]);
errh_Info( "Init of Maxim_DS18B20 '%s'", cp->Name);
}
return IO__SUCCESS;
}
static pwr_tStatus IoCardClose( io_tCtx ctx,
io_sAgent *ap,
io_sRack *rp,
io_sCard *cp)
{
io_sLocalDS18B20 *local = (io_sLocalDS18B20 *)cp->Local;
if ( cp->chanlist[0].cop) {
fclose( local->value_fp);
}
free( cp->Local);
return IO__SUCCESS;
}
static pwr_tStatus IoCardRead( io_tCtx ctx,
io_sAgent *ap,
io_sRack *rp,
io_sCard *cp)
{
io_sLocalDS18B20 *local = (io_sLocalDS18B20 *)cp->Local;
pwr_sClass_Maxim_DS18B20 *op = (pwr_sClass_Maxim_DS18B20 *)cp->op;
char str[80];
char *s;
pwr_tUInt32 error_count = op->Super.ErrorCount;
if ( op->ScanInterval > 1) {
if ( local->interval_cnt != 0) {
local->interval_cnt++;
if ( local->interval_cnt >= op->ScanInterval)
local->interval_cnt = 0;
return IO__SUCCESS;
}
local->interval_cnt++;
}
if ( cp->chanlist[0].cop) {
io_sChannel *chanp = &cp->chanlist[0];
pwr_sClass_ChanAi *cop = (pwr_sClass_ChanAi *)chanp->cop;
pwr_sClass_Ai *sop = (pwr_sClass_Ai *)chanp->sop;
pwr_tInt32 ivalue;
pwr_tFloat32 actvalue;
if ( cop->CalculateNewCoef)
// Request to calculate new coefficients
io_AiRangeToCoef( chanp);
fflush( local->value_fp);
fgets( str, sizeof(str), local->value_fp);
fgets( str, sizeof(str), local->value_fp);
rewind( local->value_fp);
s = strstr( str, "t=");
if ( s) {
sscanf( s+2, "%d", &ivalue);
io_ConvertAi32( cop, ivalue, &actvalue);
// Filter
if ( sop->FilterType == 1 &&
sop->FilterAttribute[0] > 0 &&
sop->FilterAttribute[0] > ctx->ScanTime) {
actvalue = *(pwr_tFloat32 *)chanp->vbp + ctx->ScanTime / sop->FilterAttribute[0] *
(actvalue - *(pwr_tFloat32 *)chanp->vbp);
}
*(pwr_tFloat32 *)chanp->vbp = actvalue;
sop->SigValue = cop->SigValPolyCoef1 * ivalue + cop->SigValPolyCoef0;
sop->RawValue = ivalue;
}
else {
op->Super.ErrorCount++;
}
}
if ( op->Super.ErrorCount >= op->Super.ErrorSoftLimit &&
error_count < op->Super.ErrorSoftLimit) {
errh_Warning( "IO Card ErrorSoftLimit reached, '%s'", cp->Name);
}
if ( op->Super.ErrorCount >= op->Super.ErrorHardLimit) {
errh_Error( "IO Card ErrorHardLimit reached '%s', IO stopped", cp->Name);
ctx->Node->EmergBreakTrue = 1;
return IO__ERRDEVICE;
}
return IO__SUCCESS;
}
/* Every method should be registred here. */
pwr_dExport pwr_BindIoMethods(Maxim_DS18B20) = {
pwr_BindIoMethod(IoCardInit),
pwr_BindIoMethod(IoCardClose),
pwr_BindIoMethod(IoCardRead),
pwr_NullMethod
};
otherio/lib/rt/src/os_linux/rt_io_m_onewire.h 0 → 100644
View file @ b851d56d
/* ra_io_m_onewire.h -- I/O methods for class OneWire. */
#ifndef ra_io_m_onewire_h
#define ra_io_m_onewire_h
typedef struct {
FILE *value_fp;
int interval_cnt;
} io_sLocalDS18B20;
#endif
otherio/lib/rt/src/rt_io_otherio.meth
View file @ b851d56d
......@@ -7,5 +7,6 @@ Modbus_TCP_Server
Modbus_TCP_ServerModule
GPIO
GPIO_Module
Maxim_DS18B20
USB_Agent
Velleman_K8055_Board
otherio/wbl/mcomp/src/otherio.wb_load
View file @ b851d56d
Volume OtherIO $ClassVolume 0.0.250.10
Body SysBody 01-JAN-1970 01:00:00.00
Attr NextOix = "_X111"
Attr NextCix = "_X13"
Attr NextOix = "_X122"
Attr NextCix = "_X15"
Attr NextTix[0] = "_X5"
EndBody
Object Type $TypeHier 1 15-NOV-2007 14:35:37.90
......@@ -487,7 +487,7 @@ Volume OtherIO $ClassVolume 0.0.250.10
! Super class.
!*/
Object Super $Attribute 7 15-NOV-2007 14:36:59.65
Body SysBody 15-NOV-2007 14:36:59.65
Body SysBody 06-JUN-2010 14:27:15.66
Attr PgmName = "Super"
Attr Flags = 393216
Attr TypeRef = "BaseComponent:Class-BaseIOCard"
......@@ -1627,6 +1627,155 @@ Volume OtherIO $ClassVolume 0.0.250.10
EndBody
EndObject
EndObject
Object OneWire $ClassDef 13 06-JUN-2010 13:05:35.38
Body SysBody 06-JUN-2010 13:05:26.98
Attr Editor = 0
Attr Method = 0
Attr Flags = 10320
EndBody
Object RtBody $ObjBodyDef 1 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:43.85
Attr StructName = "OneWire"
Attr NextAix = "_X21"
EndBody
Object Description $Attribute 17 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:26.98
Attr PgmName = "Description"
Attr TypeRef = "pwrs:Type-$String80"
EndBody
EndObject
Object Process $Attribute 18 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:26.98
Attr PgmName = "Process"
Attr TypeRef = "pwrb:Type-IoProcessMask"
EndBody
EndObject
Object ThreadObject $Attribute 19 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:26.98
Attr PgmName = "ThreadObject"
Attr TypeRef = "pwrs:Type-$Objid"
EndBody
EndObject
Object Status $Attribute 20 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:26.98
Attr PgmName = "Status"
Attr Flags = 1040
Attr TypeRef = "pwrs:Type-$Status"
EndBody
EndObject
EndObject
Object ConfiguratorPoson $Menu 112 06-JUN-2010 13:05:26.98
Object Pointed $Menu 113 06-JUN-2010 13:05:26.98
Object Connect $MenuButton 114 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:26.98
Attr ButtonName = "Connect PlcThread"
Attr MethodName = "$Objid-Connect"
Attr MethodArguments[0] = "ThreadObject"
Attr MethodArguments[1] = "PlcThread"
Attr FilterName = "$Objid-IsOkConnect"
Attr FilterArguments[0] = "ThreadObject"
Attr FilterArguments[1] = "PlcThread"
EndBody
EndObject
EndObject
EndObject
Object Template OneWire 2151120896 01-JAN-1970 01:00:00.00
Body RtBody 06-JUN-2010 18:34:08.77
Attr Process = 1
EndBody
EndObject
EndObject
Object Maxim_DS18B20 $ClassDef 14 06-JUN-2010 13:53:40.68
Body SysBody 06-JUN-2010 13:05:26.98
Attr Editor = 0
Attr Method = 0
Attr Flags = 18512
EndBody
Object RtBody $ObjBodyDef 1 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:53:51.81
Attr StructName = "Maxim_DS18B20"
Attr NextAix = "_X24"
EndBody
Object Super $Attribute 15 06-JUN-2010 14:27:43.39
Body SysBody 06-JUN-2010 14:27:21.38
Attr PgmName = "Super"
Attr Flags = 393216
Attr TypeRef = "BaseComponent:Class-BaseIOCard"
EndBody
EndObject
Object Status $Attribute 18 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:26.98
Attr PgmName = "Status"
Attr TypeRef = "pwrs:Type-$Status"
EndBody
EndObject
Object Family $Attribute 22 06-JUN-2010 13:56:28.16
Body SysBody 06-JUN-2010 13:56:08.04
Attr PgmName = "Family"
Attr TypeRef = "pwrs:Type-$UInt32"
EndBody
EndObject
Object Resolution $Attribute 21 06-JUN-2010 13:54:53.59
Body SysBody 06-JUN-2010 13:13:46.70
Attr PgmName = "Resolution"
Attr TypeRef = "pwrs:Type-$UInt32"
EndBody
EndObject
Object ScanInterval $Attribute 19 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:05:26.98
Attr PgmName = "ScanInterval"
Attr TypeRef = "pwrs:Type-$UInt32"
EndBody
EndObject
Object ChAi $Attribute 20 06-JUN-2010 13:08:41.78
Body SysBody 06-JUN-2010 13:09:01.03
Attr PgmName = "ChAi"
Attr Flags = 131072
Attr TypeRef = "pwrb:Class-ChanAi"
EndBody
EndObject
EndObject
Object IoMethods $RtMethod 118 06-JUN-2010 13:05:26.98
Object IoCardInit $Method 119 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:54:01.89
Attr MethodName = "Maxim_DS18B20-IoCardInit"
EndBody
EndObject
Object IoCardClose $Method 120 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:54:09.79
Attr MethodName = "Maxim_DS18B20-IoCardClose"
EndBody
EndObject
Object IoCardRead $Method 121 06-JUN-2010 13:05:26.98
Body SysBody 06-JUN-2010 13:54:16.51
Attr MethodName = "Maxim_DS18B20-IoCardRead"
EndBody
EndObject
EndObject
Object Template Maxim_DS18B20 2151383040 01-JAN-1970 01:00:00.00
Body RtBody 06-JUN-2010 18:34:27.07
Attr Super.Specification = "Maxim 1-Wire temperature sensor DS18B10"
Attr Super.Process = 1
Attr Super.ErrorSoftLimit = 50
Attr Super.ErrorHardLimit = 100
Attr Super.MaxNoOfChannels = 1
Attr Family = 28
Attr Resolution = 12
Attr ChAi.ConversionOn = 1
Attr ChAi.ScanInterval = 1
Attr ChAi.RawValRangeLow = -5.500000e+04
Attr ChAi.RawValRangeHigh = 1.250000e+05
Attr ChAi.ChannelSigValRangeLow = -5.500000e+04
Attr ChAi.ChannelSigValRangeHigh = 1.250000e+05
Attr ChAi.SigValueUnit = "C"
Attr ChAi.SensorPolyType = 1
Attr ChAi.SensorSigValRangeLow = -5.500000e+04
Attr ChAi.SensorSigValRangeHigh = 1.250000e+05
Attr ChAi.ActValRangeLow = -5.500000e+01
Attr ChAi.ActValRangeHigh = 1.250000e+02
EndBody
EndObject
EndObject
!/**
! @Version 1.0
! @Group IO
......
src/lib/rt/src/rt_io_base.c
View file @ b851d56d
......@@ -3009,6 +3009,55 @@ void io_ConvertAi (
}
}
void io_ConvertAi32 (
pwr_sClass_ChanAi *cop,
pwr_tInt32 rawvalue,
pwr_tFloat32 *actvalue_p
)
{
pwr_tFloat32 sigvalue;
pwr_tFloat32 actvalue;
pwr_tFloat32 *polycoef_p;
int i;
switch ( cop->SensorPolyType)
{
case 0:
*actvalue_p = cop->SigValPolyCoef0 + cop->SigValPolyCoef1 * rawvalue;
break;
case 1:
*actvalue_p = cop->SensorPolyCoef0 + cop->SensorPolyCoef1 * rawvalue;
break;
case 2:
sigvalue = cop->SigValPolyCoef0 + cop->SigValPolyCoef1 * rawvalue;
polycoef_p = &cop->SensorPolyCoef2;
actvalue = 0;
for ( i = 0; i < 3; i++)
{
actvalue = sigvalue * actvalue + *polycoef_p;
polycoef_p--;
}
*actvalue_p = actvalue;
break;
case 3:
sigvalue = cop->SigValPolyCoef0 + cop->SigValPolyCoef1 * rawvalue;
actvalue = cop->SensorPolyCoef0 + cop->SensorPolyCoef1 * sigvalue;
if ( actvalue >= 0)
*actvalue_p = cop->SensorPolyCoef2 * sqrt( actvalue);
else
*actvalue_p = 0;
break;
case 4:
sigvalue = cop->SigValPolyCoef0 + cop->SigValPolyCoef1 * rawvalue;
actvalue = cop->SensorPolyCoef0 + cop->SensorPolyCoef1 * sigvalue;
if ( actvalue >= 0)
*actvalue_p = cop->SensorPolyCoef2 * sqrt( actvalue);
else
*actvalue_p = -cop->SensorPolyCoef2 * sqrt( -actvalue);
break;
}
}
/*----------------------------------------------------------------------------*\
Convert ait from rawvalue to actualvalue.
......
src/lib/rt/src/rt_io_base.h
View file @ b851d56d
......@@ -240,6 +240,12 @@ void io_ConvertAi (
pwr_tFloat32 *actvalue_p
);
void io_ConvertAi32 (
pwr_sClass_ChanAi *cop,
pwr_tInt32 rawvalue,
pwr_tFloat32 *actvalue_p
);
void io_ConvertAit (
pwr_sClass_ChanAit *cop,
pwr_tInt16 rawvalue,
......
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