1 /* -------------------------------- Arctic Core ------------------------------
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2 * Arctic Core - the open source AUTOSAR platform http://arccore.com
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4 * Copyright (C) 2009 ArcCore AB <contact@arccore.com>
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6 * This source code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 as published by the
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8 * Free Software Foundation; See <http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt>.
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10 * This program is distributed in the hope that it will be useful, but
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11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * -------------------------------- Arctic Core ------------------------------*/
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17 #include "Std_Types.h"
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23 GIO_RegisterType *GPIO_ports[] = { GIO_PORTA_BASE, GIO_PORTB_BASE };
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25 #define DIO_GET_PORT_FROM_CHANNEL_ID(_channelId) (_channelId >> 8)
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26 #define DIO_GET_BIT_FROM_CHANNEL_ID(_channelId) (1 << (_channelId & 0x1F))
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28 #if ( DIO_DEV_ERROR_DETECT == STD_ON )
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29 static int Channel_Config_Contains(Dio_ChannelType channelId)
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31 Dio_ChannelType* ch_ptr=(Dio_ChannelType*)(&DioChannelConfigData);
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33 while (DIO_END_OF_LIST!=*ch_ptr)
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35 if (*ch_ptr==channelId)
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45 static int Port_Config_Contains(Dio_PortType portId)
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47 Dio_PortType* port_ptr=(Dio_PortType*)(&DioPortConfigData);
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49 while (DIO_END_OF_LIST!=*port_ptr)
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51 if (*port_ptr==portId)
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58 static int Channel_Group_Config_Contains(const Dio_ChannelGroupType* _channelGroupIdPtr)
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60 Dio_ChannelGroupType* chGrp_ptr=(Dio_ChannelGroupType*)(&DioConfigData);
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63 while (DIO_END_OF_LIST!=chGrp_ptr->port)
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65 if (chGrp_ptr->port==_channelGroupIdPtr->port&&
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66 chGrp_ptr->offset==_channelGroupIdPtr->offset&&
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67 chGrp_ptr->mask==_channelGroupIdPtr->mask)
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74 #define VALIDATE_CHANNEL(_channelId, _api) \
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75 if(0==Channel_Config_Contains(channelId)) { \
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76 Det_ReportError(MODULE_ID_DIO,0,_api,DIO_E_PARAM_INVALID_CHANNEL_ID ); \
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80 #define VALIDATE_PORT(_portId, _api)\
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81 if(0==Port_Config_Contains(_portId)) {\
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82 Det_ReportError(MODULE_ID_DIO,0,_api,DIO_E_PARAM_INVALID_PORT_ID ); \
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86 #define VALIDATE_CHANNELGROUP(_channelGroupIdPtr, _api)\
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87 if(0==Channel_Group_Config_Contains(_channelGroupIdPtr)) {\
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88 Det_ReportError(MODULE_ID_DIO,0,_api,DIO_E_PARAM_INVALID_GROUP_ID ); \
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93 #define VALIDATE_CHANNEL(_channelId, _api)
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94 #define VALIDATE_PORT(_portId, _api)
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95 #define VALIDATE_CHANNELGROUP(_channelGroupIdPtr, _api)
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98 Dio_PortLevelType Dio_ReadPort(Dio_PortType portId)
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100 Dio_PortLevelType level = 0;
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101 VALIDATE_PORT(portId, DIO_READPORT_ID);
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103 level = (uint8)GPIO_ports[portId]->DIN;
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105 cleanup: return level;
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108 void Dio_WritePort(Dio_PortType portId, Dio_PortLevelType level)
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110 VALIDATE_PORT(portId, DIO_WRITEPORT_ID);
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112 GPIO_ports[portId]->DOUT = (uint32)level;
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117 Dio_LevelType Dio_ReadChannel(Dio_ChannelType channelId)
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119 Dio_LevelType level;
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120 VALIDATE_CHANNEL(channelId, DIO_READCHANNEL_ID);
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122 Dio_PortLevelType portVal = Dio_ReadPort(DIO_GET_PORT_FROM_CHANNEL_ID(channelId));
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123 Dio_PortLevelType bit = DIO_GET_BIT_FROM_CHANNEL_ID(channelId);
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125 if ((portVal & bit) != STD_LOW){
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131 cleanup: return (level);
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134 void Dio_WriteChannel(Dio_ChannelType channelId, Dio_LevelType level)
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136 VALIDATE_CHANNEL(channelId, DIO_WRITECHANNEL_ID);
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138 Dio_PortType port = DIO_GET_PORT_FROM_CHANNEL_ID(channelId);
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139 uint16 bit = DIO_GET_BIT_FROM_CHANNEL_ID(channelId);
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141 if (!( GPIO_ports[port]->DIR & bit)) { // This is an input channel.
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145 Dio_PortLevelType portVal = Dio_ReadPort(port);
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147 if(level == STD_HIGH){
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153 Dio_WritePort(port, portVal);
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159 Dio_PortLevelType Dio_ReadChannelGroup(
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160 const Dio_ChannelGroupType *channelGroupIdPtr)
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162 Dio_LevelType level;
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163 VALIDATE_CHANNELGROUP(channelGroupIdPtr,DIO_READCHANNELGROUP_ID);
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165 // Get masked values
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166 level = Dio_ReadPort(channelGroupIdPtr->port) & channelGroupIdPtr->mask;
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169 level = level >> channelGroupIdPtr->offset;
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171 cleanup: return level;
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174 void Dio_WriteChannelGroup(const Dio_ChannelGroupType *channelGroupIdPtr,
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175 Dio_PortLevelType level)
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177 VALIDATE_CHANNELGROUP(channelGroupIdPtr,DIO_WRITECHANNELGROUP_ID);
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179 // Shift up and apply mask so that no unwanted bits are affected
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180 level = (level << channelGroupIdPtr->offset) & channelGroupIdPtr->mask;
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182 // Read port and clear out masked bits
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183 Dio_PortLevelType portVal = Dio_ReadPort(channelGroupIdPtr->port) & (~channelGroupIdPtr->mask);
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185 // Or in the upshifted masked level
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188 Dio_WritePort(channelGroupIdPtr->port, portVal);
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