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one_wire_dualSwitch.c
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one_wire_dualSwitch.c
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/*
Licensed under the EUPL V.1.1, Lizenziert unter EUPL V.1.1
*/
#include <stdint.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
/*
* VERSION 1.0 Januar 7th 2010 LATE File: 'one_wire_dualSwitch.c'
* Author: Linda Fouedjio based on Alejandro Gil
* modified (heavily rather rebuild): Peter Zumbruch
*/
#include <math.h>
#include <stdlib.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include <ctype.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/sleep.h>
#include <avr/iocan128.h>
#include "one_wire.h"
#include "one_wire_adc.h"
#include "one_wire_dualSwitch.h"
#include "one_wire_simpleSwitch.h"
#include "read_write_register.h"
#include "one_wire_temperature.h"
#include "adc.h"
#include "api.h"
#include "api_define.h"
#include "api_global.h"
#include "api_debug.h"#include "can.h"
#include "mem-check.h"
#include "OWIDeviceSpecific.h"
#include "OWIHighLevelFunctions.h"
#include "OWIBitFunctions.h"
#define DS2413_PIO_ACCESS_READ 0xF5
#define DS2413_PIO_ACCESS_WRITE 0x5A
#define DS2413_WRITE_CONFIRMATION_PATTERN 0xAA
#define DS2413_MAX_WRITE_VALUE 0x03
#warning TODO: make this max value switchable
#define OWI_DUAL_SWITCHES_MAXIMUM_WRITE_ACCESS_COUNTS 100
static const char filename[] PROGMEM = __FILE__;
uint16_t owiDualSwitchMask = 0;
uint16_t* p_owiDualSwitchMask = &owiDualSwitchMask;
void owiDualSwitches( struct uartStruct *ptr_uartStruct )
{
//int index = -1;
#warning TODO? owiReadDevicesID, depending on some settings, might be replaced by a conditional search function
NumDevicesFound = owiReadDevicesID(BUSES);
if ( 0 < NumDevicesFound )
{
owiDualSwitchMask = 0x0;
if ( 0 < ( owiScanIDS(OWI_FAMILY_DS2413_DUAL_SWITCH, p_owiDualSwitchMask))) /* Dual Switch connected */
{
/* additional arguments ?
* 0:
* read all;
* 1:
* read: id,
* write: value,
* 2:
* write: id value
*/
/* 0xff> id >> 56 > 0x01 */
/* needs own parsing */
switch(ptr_uartStruct->number_of_arguments)
{
case 0: /*read all*/
printDebug_p(debugLevelEventDebug, debugSystemOWIDualSwitches, __LINE__, filename, PSTR("OWDS read all"));
owiFindFamilyDevicesAndAccessValues(BUSES, NumDevicesFound, OWI_FAMILY_DS2413_DUAL_SWITCH, NULL );
break;
case 1: /*read single ID / write all / invalid */
if (TRUE == ptr_owiStruct->idSelect_flag) /* read ID */
{
printDebug_p(debugLevelEventDebug, debugSystemOWIDualSwitches, __LINE__, filename, PSTR("OWDS read ID"));
owiFindFamilyDevicesAndAccessValues(BUSES, NumDevicesFound, OWI_FAMILY_DS2413_DUAL_SWITCH, NULL );
}
else /* write value / invalid */
{
printDebug_p(debugLevelEventDebug, debugSystemOWIDualSwitches, __LINE__, filename, PSTR("OWDS write all: %#x, pointer (%p)" ), ptr_owiStruct->value, ptr_owiStruct->ptr_value);
if ( DS2413_MAX_WRITE_VALUE >= ptr_owiStruct->value)
{
owiFindFamilyDevicesAndAccessValues(BUSES, NumDevicesFound, OWI_FAMILY_DS2413_DUAL_SWITCH, ptr_owiStruct->ptr_value);
}
else
{
CommunicationError_p(ERRA, dynamicMessage_ErrorIndex, TRUE, PSTR("write argument: %#x is out of range [0,%#x] ... skipping"), ptr_owiStruct->value, DS2413_MAX_WRITE_VALUE);
return;
}
}
break;
case 2: /* write ID value / invalid */
if (TRUE == ptr_owiStruct->idSelect_flag) /* write ID value*/
{
printDebug_p(debugLevelEventDebug, debugSystemOWIDualSwitches, __LINE__, filename, PSTR("OWDS write ID: %#x pointer (%p)"), ptr_owiStruct->value, ptr_owiStruct->ptr_value);
if ( DS2413_MAX_WRITE_VALUE >= ptr_owiStruct->value)
{
owiFindFamilyDevicesAndAccessValues(BUSES, NumDevicesFound, OWI_FAMILY_DS2413_DUAL_SWITCH, ptr_owiStruct->ptr_value );
}
else
{
CommunicationError_p(ERRA, dynamicMessage_ErrorIndex, TRUE, PSTR("write argument: %#x is out of range [0,%#x] ... skipping"), ptr_owiStruct->value, DS2413_MAX_WRITE_VALUE);
return;
}
}
else
{
CommunicationError_p(ERRA, dynamicMessage_ErrorIndex, TRUE, PSTR("write argument: invalid arguments"));
return;
}
break;
default: /* invalid */
CommunicationError_p(ERRA, dynamicMessage_ErrorIndex, TRUE, PSTR("write argument: too many arguments"));
break;
}
}
}
}
/*
*this function reads the state of dual switch
*/
uint16_t ReadDualSwitches( unsigned char bus_pattern, unsigned char * id )
{
uint16_t value = 0x0;
// continue if bus isn't active
if ( 0 == ( ( owiBusMask & bus_pattern ) & 0xFF ) )
{
return owiReadStatus_owi_bus_mismatch << 8;
}
// continue if bus doesn't contain any Dual Switches
if ( 0 == ( ( owiDualSwitchMask & bus_pattern ) & 0xFF ) )
{
return owiReadStatus_owi_bus_mismatch << 8;
}
/* Reset, presence.*/
if ( OWI_DetectPresence(bus_pattern) == 0 )
{
return owiReadStatus_no_device_presence << 8;
}
OWI_MatchRom(id, bus_pattern); /* Match id found earlier*/
OWI_SendByte(DS2413_PIO_ACCESS_READ, bus_pattern); //PIO Access read command
/*Read first byte and place them in the 16 bit channel variable*/
value = OWI_ReceiveByte(bus_pattern);
value &= 0xFF;
OWI_DetectPresence(bus_pattern); /* generate RESET to stop slave sending its status and presence pulse*/
return value | owiReadWriteStatus_OK << 8;
}//END of ReadDualSwitches function
/*
*this function writes the state of dual switch
*/
uint16_t WriteDualSwitches( unsigned char bus_pattern, unsigned char * id, uint8_t value )
{
static unsigned char timeout_flag;
static uint32_t count;
static uint8_t status;
static uint32_t maxcount = OWI_DUAL_SWITCHES_MAXIMUM_WRITE_ACCESS_COUNTS;
// continue if bus isn't active
if ( 0 == ( ( owiBusMask & bus_pattern ) & 0xFF ) )
{
return owiReadStatus_owi_bus_mismatch << 8;
}
// continue if bus doesn't contain any Dual Switches
if ( 0 == ( ( owiDualSwitchMask & bus_pattern ) & 0xFF ) )
{
return owiReadStatus_owi_bus_mismatch << 8;
}
/* Reset, presence.*/
if ( OWI_DetectPresence(bus_pattern) == 0 )
{
return owiReadStatus_no_device_presence << 8;
}
count = maxcount;
timeout_flag = FALSE;
status = 0;
/* Match id found earlier*/
OWI_MatchRom(id, bus_pattern);
/* PIO Access write command */
OWI_SendByte(DS2413_PIO_ACCESS_WRITE, bus_pattern);
/* loop writing value and its complement, and waiting for confirmation */
while (DS2413_WRITE_CONFIRMATION_PATTERN != status )
{
status = 0;
/* timeout check */
if ( 0 == --count)
{
timeout_flag = TRUE;
break;
}
OWI_SendByte( (value |= 0xFC ), bus_pattern); // write value 0:on 1:off
OWI_SendByte(~(value |= 0xFC ), bus_pattern); // to confirm, write inverted
/*Read status */
status = OWI_ReceiveByte(bus_pattern);
status &= 0xFF;
}
if ( FALSE == timeout_flag )
{
/*Read first byte*/
value = OWI_ReceiveByte(bus_pattern);
value &= 0xFF;
OWI_DetectPresence(bus_pattern); /* generate RESET to stop slave sending its status and presence pulse*/
return value | owiReadWriteStatus_OK << 8;
}
else
{
OWI_DetectPresence(bus_pattern); /* generate RESET to stop slave sending its status and presence pulse*/
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, TRUE, PSTR("OWI Dual Switch write value timeout"));
return value | owiWriteStatus_Timeout << 8;
}
return value | owiReadWriteStatus_OK << 8;
}//END of ReadDualSwitches function